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Note: This page contains sample records for the topic "duty roots expander" from the National Library of EnergyBeta (NLEBeta).
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We encourage you to perform a real-time search of NLEBeta
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1

Vehicle Technologies Office Merit Review 2014: Heavy Duty Roots Expander Heat Energy Recovery (HD-REHER)  

Broader source: Energy.gov [DOE]

Presentation given by Eaton Corporation at 2014 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about heavy duty roots expander...

2

Heavy Duty Roots Expander for Waste Heat Energy Recovery  

Broader source: Energy.gov [DOE]

2013 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting

3

Light Duty Combustion Research: Advanced Light-Duty Combustion...  

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

Combustion Research: Advanced Light-Duty Combustion Experiments Light Duty Combustion Research: Advanced Light-Duty Combustion Experiments 2009 DOE Hydrogen Program and Vehicle...

4

Heavy Duty & Medium Duty Drive Cycle Data Collection for Modeling...  

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

Duty Cycle and Performance Data Collection and Analysis Program Vehicle Technologies Office Merit Review 2014: Powertrain Controls Optimization for Heavy Duty Line Haul Trucks...

5

Light Duty Efficient, Clean Combustion  

SciTech Connect (OSTI)

Cummins has successfully completed the Light Duty Efficient Clean Combustion (LDECC) cooperative program with DoE. This program was established in 2007 in support of the Department of Energy's Vehicles Technologies Advanced Combustion and Emissions Control initiative to remove critical barriers to the commercialization of advanced, high efficiency, emissions compliant internal combustion (IC) engines for light duty vehicles. Work in this area expanded the fundamental knowledge of engine combustion to new regimes and advanced the knowledge of fuel requirements for these diesel engines to realize their full potential. All of the following objectives were met with fuel efficiency improvement targets exceeded: (1) Improve light duty vehicle (5000 lb. test weight) fuel efficiency by 10.5% over today's state-of-the-art diesel engine on the FTP city drive cycle; (2) Develop and design an advanced combustion system plus aftertreatment system that synergistically meets Tier 2 Bin 5 NOx and PM emissions standards while demonstrating the efficiency improvements; (3) Maintain power density comparable to that of current conventional engines for the applicable vehicle class; and (4) Evaluate different fuel components and ensure combustion system compatibility with commercially available biofuels. Key accomplishments include: (1) A 25% improvement in fuel efficiency was achieved with the advanced LDECC engine equipped with a novel SCR aftertreatment system compared to the 10.5% target; (2) An 11% improvement in fuel efficiency was achieved with the advanced LDECC engine and no NOx aftertreamtent system; (3) Tier 2 Bin 5 and SFTP II emissions regulations were met with the advanced LDECC engine equipped with a novel SCR aftertreatment system; (4) Tier 2 Bin 5 emissions regulations were met with the advanced LDECC engine and no NOx aftertreatment, but SFTP II emissions regulations were not met for the US06 test cycle - Additional technical barriers exist for the no NOx aftertreatment engine; (5) Emissions and efficiency targets were reached with the use of biodiesel. A variety of biofuel feedstocks (soy, rapeseed, etc.) was investigated; (6) The advanced LDECC engine with low temperature combustion was compatible with commercially available biofuels as evaluated by engine performance testing and not durability testing; (7) The advanced LDECC engine equipped with a novel SCR aftertreatment system is the engine system architecture that is being further developed by the Cummins product development organization. Cost reduction and system robustness activities have been identified for future deployment; (8) The new engine and aftertreatment component technologies are being developed by the Cummins Component Business units (e.g. fuel system, turbomachinery, aftertreatment, electronics, etc.) to ensure commercial viability and deployment; (9) Cummins has demonstrated that the technologies developed for this program are scalable across the complete light duty engine product offerings (2.8L to 6.7L engines); and (10) Key subsystems developed include - sequential two stage turbo, combustions system for low temperature combustion, novel SCR aftertreatment system with feedback control, and high pressure common rail fuel system. An important element of the success of this project was leveraging Cummins engine component technologies. Innovation in component technology coupled with system integration is enabling Cummins to move forward with the development of high efficiency clean diesel products with a long term goal of reaching a 40% improvement in thermal efficiency for the engine plus aftertreatment system. The 40% improvement is in-line with the current light duty vehicle efficiency targets set by the 2010 DoE Vehicle Technologies MYPP and supported through co-operative projects such as the Cummins Advanced Technology Powertrains for Light-Duty Vehicles (ATP-LD) started in 2010.

Donald Stanton

2010-12-31T23:59:59.000Z

6

Light Duty Efficient, Clean Combustion  

SciTech Connect (OSTI)

Cummins has successfully completed the Light Duty Efficient Clean Combustion (LDECC) cooperative program with DoE. This program was established in 2007 in support of the Department of Energy’s Vehicles Technologies Advanced Combustion and Emissions Control initiative to remove critical barriers to the commercialization of advanced, high efficiency, emissions compliant internal combustion (IC) engines for light duty vehicles. Work in this area expanded the fundamental knowledge of engine combustion to new regimes and advanced the knowledge of fuel requirements for these diesel engines to realize their full potential. All of the following objectives were met with fuel efficiency improvement targets exceeded: 1. Improve light duty vehicle (5000 lb. test weight) fuel efficiency by 10.5% over today’s state-ofthe- art diesel engine on the FTP city drive cycle 2. Develop & design an advanced combustion system plus aftertreatment system that synergistically meets Tier 2 Bin 5 NOx and PM emissions standards while demonstrating the efficiency improvements. 3. Maintain power density comparable to that of current conventional engines for the applicable vehicle class. 4. Evaluate different fuel components and ensure combustion system compatibility with commercially available biofuels. Key accomplishments include: ? A 25% improvement in fuel efficiency was achieved with the advanced LDECC engine equipped with a novel SCR aftertreatment system compared to the 10.5% target ? An 11% improvement in fuel efficiency was achieved with the advanced LDECC engine and no NOx aftertreamtent system ? Tier 2 Bin 5 and SFTP II emissions regulations were met with the advanced LDECC engine equipped with a novel SCR aftertreatment system ? Tier 2 Bin 5 emissions regulations were met with the advanced LDECC engine and no NOx aftertreatment, but SFTP II emissions regulations were not met for the US06 test cycle – Additional technical barriers exist for the no NOx aftertreatment engine ? Emissions and efficiency targets were reached with the use of biodiesel. A variety of biofuel feedstocks (soy, rapeseed, etc.) was investigated. ? The advanced LDECC engine with low temperature combustion was compatible with commercially available biofuels as evaluated by engine performance testing and not durability testing. ? The advanced LDECC engine equipped with a novel SCR aftertreatment system is the engine system architecture that is being further developed by the Cummins product development organization. Cost reduction and system robustness activities have been identified for future deployment. ? The new engine and aftertreatment component technologies are being developed by the Cummins Component Business units (e.g. fuel system, turbomachinery, aftertreatment, electronics, etc.) to ensure commercial viability and deployment ? Cummins has demonstrated that the technologies developed for this program are scalable across the complete light duty engine product offerings (2.8L to 6.7L engines) ? Key subsystems developed include – sequential two stage turbo, combustions system for low temperature combustion, novel SCR aftertreatment system with feedback control, and high pressure common rail fuel system An important element of the success of this project was leveraging Cummins engine component technologies. Innovation in component technology coupled with system integration is enabling Cummins to move forward with the development of high efficiency clean diesel products with a long term goal of reaching a 40% improvement in thermal efficiency for the engine plus aftertreatment system. The 40% improvement is in-line with the current light duty vehicle efficiency targets set by the 2010 DoE Vehicle Technologies MYPP and supported through co-operative projects such as the Cummins Advanced Technology Powertrains for Light- Duty Vehicles (ATP-LD) started in 2010.

Stanton, Donald W

2011-06-03T23:59:59.000Z

7

On Acting from Duty  

E-Print Network [OSTI]

, for an action to have moral worth, the action must be motivated solely by duty. In the first section of the Groundwork, Kant provides examples of moral agents of varying character to illustrate the distinction between acting merely in accordance with duty... an action of this kind, however right and however amiable it may be, still has no genuinely moral worth. It stands on the same footing as other inclinations—for example, the inclination for honour, which if fortunate enough to hit on something beneficial...

Fossee, Jordan Michael

2013-09-24T23:59:59.000Z

8

Expanding Professional Horizons  

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

expands daily, by leaps and bounds - knowledge turnover must be accompanied by an infusion of new talent that both informs and is informed by existing, experienced staff. With...

9

Heavy-Duty Low-Temperature and Diesel Combustion & Heavy-Duty...  

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

ce001musculus2011o.pdf More Documents & Publications Heavy-Duty Low-Temperature and Diesel Combustion & Heavy-Duty Combustion Modeling Heavy-Duty Low-Temperature and Diesel...

10

Heavy-Duty Low-Temperature and Diesel Combustion & Heavy-Duty...  

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

ce001musculus2010o.pdf More Documents & Publications Heavy-Duty Low-Temperature and Diesel Combustion & Heavy-Duty Combustion Modeling Heavy-Duty Low-Temperature and Diesel...

11

Technology Development for Light Duty High Efficient Diesel Engines...  

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

Light Duty High Efficient Diesel Engines Technology Development for Light Duty High Efficient Diesel Engines Improve the efficiency of diesel engines for light duty applications...

12

Functionalized expanded porphyrins  

DOE Patents [OSTI]

Disclosed are functionalized expanded porphyrins that can be used as spectrometric sensors for high-valent actinide cations. The disclosed functionalized expanded porphyrins have the advantage over unfunctionalized systems in that they can be immobilized via covalent attachment to a solid support comprising an inorganic or organic polymer or other common substrates. Substrates comprising the disclosed functionalized expanded porphyrins are also disclosed. Further, disclosed are methods of making the disclosed compounds (immobilized and free), methods of using them as sensors to detect high valent actinides, devices that comprise the disclosed compounds, and kits.

Sessler, Jonathan L; Pantos, Patricia J

2013-11-12T23:59:59.000Z

13

The expandable network disk  

E-Print Network [OSTI]

This thesis presents a virtual disk cluster called END, the Expandable Network Disk. END aggregates storage on a cluster of servers into a single virtual disk. END's main goals are to offer good performance during normal ...

Muthitacharoen, Athicha, 1976-

2008-01-01T23:59:59.000Z

14

Stent with expandable foam  

DOE Patents [OSTI]

A stent for treating a physical anomaly. The stent includes a skeletal support structure for expanding in the physical anomaly and a shape memory material coupled to the skeletal support structure.

Wilson, Thomas S; Maitland, Duncan J; Small, IV, Ward; Buckley, Patrick R; Benett, William J; Hartman, Jonathan; Saloner, David A

2013-05-28T23:59:59.000Z

15

An Ever Expanding Universe?  

E-Print Network [OSTI]

It is pointed out that very recent results based on supernovae observations that the universe will accelerate and expand for ever with ever decreasing density have been predicted in a recent cosmological model which also deduces hitherto purely empirical features like the mysterious relation between the pion mass and the Hubble Constant.

B. G. Sidharth

1998-05-12T23:59:59.000Z

16

Heavy Duty Vehicle Futures Analysis.  

SciTech Connect (OSTI)

This report describes work performed for an Early Career Research and Development project. This project developed a heavy-duty vehicle (HDV) sector model to assess the factors influencing alternative fuel and efficiency technology adoption. This model builds on a Sandia light duty vehicle sector model and provides a platform for assessing potential impacts of technological advancements developed at the Combustion Research Facility. Alternative fuel and technology adoption modeling is typically developed around a small set of scenarios. This HDV sector model segments the HDV sector and parameterizes input values, such as fuel prices, efficiencies, and vehicle costs. This parameterization enables sensitivity and trade space analyses to identify the inputs that are most associated with outputs of interest, such as diesel consumption and greenhouse gas emissions. Thus this analysis tool enables identification of the most significant HDV sector drivers that can be used to support energy security and climate change goals.

Askin, Amanda Christine; Barter, Garrett; West, Todd H.; Manley, Dawn Kataoka

2014-05-01T23:59:59.000Z

17

Expandable LED array interconnect  

DOE Patents [OSTI]

A light emitting device that can function as an array element in an expandable array of such devices. The light emitting device comprises a substrate that has a top surface and a plurality of edges. Input and output terminals are mounted to the top surface of the substrate. Both terminals comprise a plurality of contact pads disposed proximate to the edges of the substrate, allowing for easy access to both terminals from multiple edges of the substrate. A lighting element is mounted to the top surface of the substrate. The lighting element is connected between the input and output terminals. The contact pads provide multiple access points to the terminals which allow for greater flexibility in design when the devices are used as array elements in an expandable array.

Yuan, Thomas Cheng-Hsin; Keller, Bernd

2011-03-01T23:59:59.000Z

18

Grazing incidence beam expander  

SciTech Connect (OSTI)

A Grazing Incidence Beam Expander (GIBE) telescope is being designed and fabricated to be used as an equivalent end mirror in a long laser resonator cavity. The design requirements for this GIBE flow down from a generic Free Electron Laser (FEL) resonator. The nature of the FEL gain volume (a thin, pencil-like, on-axis region) dictates that the output beam be very small. Such a thin beam with the high power levels characteristic of FELs would have to travel perhaps hundreds of meters or more before expanding enough to allow reflection from cooled mirrors. A GIBE, on the other hand, would allow placing these optics closer to the gain region and thus reduces the cavity lengths substantially. Results are presented relating to optical and mechanical design, alignment sensitivity analysis, radius of curvature analysis, laser cavity stability analysis of a linear stable concentric laser cavity with a GIBE. Fabrication details of the GIBE are also given.

Akkapeddi, P.R.; Glenn, P.; Fuschetto, A.; Appert, Q.; Viswanathan, V.K.

1985-01-01T23:59:59.000Z

19

Heavy-Duty Low-Temperature and Diesel Combustion & Heavy-Duty...  

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

ce001musculus2012o.pdf More Documents & Publications Heavy-Duty Low-Temperature and Diesel Combustion & Heavy-Duty Combustion Modeling Vehicle Technologies Office Merit Review...

20

Heavy-Duty Low-Temperature and Diesel Combustion & Heavy-Duty...  

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

D.C. ace01musculus.pdf More Documents & Publications Heavy-Duty Low-Temperature and Diesel Combustion & Heavy-Duty Combustion Modeling Vehicle Technologies Office Merit Review...

Note: This page contains sample records for the topic "duty roots expander" 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

Emission Controls for Heavy-Duty Trucks  

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

DEER Conference Emission Controls for Heavy-Duty Trucks Overview Emission Standards - US and Worldwide Technology Options for Meeting Emissions System Integration ...

22

Expanded Pending Jobs by Group  

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

Expanded Pending Jobs by Group Expanded Pending Jobs by Group Daily Graph: Weekly Graph: Monthly Graph: Yearly Graph: 2 Year Graph: Last edited: 2011-04-05 14:00:25...

23

Vehicle Technologies Office Merit Review 2014: Heavy-Duty Low...  

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

Heavy-Duty Low-Temperature and Diesel Combustion & Heavy-Duty Combustion Modeling Vehicle Technologies Office Merit Review 2014: Heavy-Duty Low-Temperature and Diesel Combustion &...

24

Expanding hollow metal rings  

DOE Patents [OSTI]

A sealing device that may expand more planar dimensions due to internal thermal expansion of a filler material. The sealing material is of a composition such that when desired environment temperatures and internal actuating pressures are reached, the sealing materials undergoes a permanent deformation. For metallic compounds, this permanent deformation occurs when the material enters the plastic deformation phase. Polymers, and other materials, may be using a sealing mechanism depending on the temperatures and corrosivity of the use. Internal pressures are generated by either rapid thermal expansion or material phase change and may include either liquid or solid to gas phase change, or in the gaseous state with significant pressure generation in accordance with the gas laws. Sealing material thickness and material composition may be used to selectively control geometric expansion of the seal such that expansion is limited to a specific facing and or geometric plane.

Peacock, Harold B. (Evans, GA); Imrich, Kenneth J. (Grovetown, GA)

2009-03-17T23:59:59.000Z

25

Mechanically expandable annular seal  

DOE Patents [OSTI]

A mechanically expandable annular reusable seal assembly to form an annular hermetic barrier between two stationary, parallel, and planar containment surfaces is described. A rotatable ring, attached to the first surface, has ring wedges resembling the saw-tooth array of a hole saw. Matching seal wedges are slidably attached to the ring wedges and have their motion restricted to be perpendicular to the second surface. Each seal wedge has a face parallel to the second surface. An annular elastomer seal has a central annular region attached to the seal wedges' parallel faces and has its inner and outer circumferences attached to the first surface. A rotation of the ring extends the elastomer seal's central region perpendicularly towards the second surface to create the fluid tight barrier. A counter rotation removes the barrier. 6 figs.

Gilmore, R.F.

1983-07-19T23:59:59.000Z

26

SCR Systems for Heavy Duty Trucks: Progress Towards Meeting Euro...  

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

Systems for Heavy Duty Trucks: Progress Towards Meeting Euro 4 Emission Standards in 2005 SCR Systems for Heavy Duty Trucks: Progress Towards Meeting Euro 4 Emission Standards in...

27

Integrated Virtual Lab in Supporting Heavy Duty Engine and Vehicle...  

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

Virtual Lab in Supporting Heavy Duty Engine and Vehicle Emission Rulemaking Integrated Virtual Lab in Supporting Heavy Duty Engine and Vehicle Emission Rulemaking Presentation...

28

Design of Integrated Laboratory and Heavy-Duty Emissions Testing...  

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

of Integrated Laboratory and Heavy-Duty Emissions Testing Center Design of Integrated Laboratory and Heavy-Duty Emissions Testing Center Both simulated and actual diesel emissions...

29

Light Duty Fuel Cell Electric Vehicle Hydrogen Fueling Protocol...  

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

Light Duty Fuel Cell Electric Vehicle Hydrogen Fueling Protocol Light Duty Fuel Cell Electric Vehicle Hydrogen Fueling Protocol Webinar slides from the U.S. Department of Energy...

30

WORKSHOP REPORT:Light-Duty Vehicles Technical Requirements and...  

Energy Savers [EERE]

Light-Duty Vehicles Technical Requirements and Gaps for Lightweight and Propulsion Materials WORKSHOP REPORT:Light-Duty Vehicles Technical Requirements and Gaps for Lightweight and...

31

WORKSHOP REPORT: Trucks and Heavy-Duty Vehicles Technical Requirements...  

Energy Savers [EERE]

Heavy-Duty Vehicles Technical Requirements and Gaps for Lightweight and Propulsion Materials WORKSHOP REPORT: Trucks and Heavy-Duty Vehicles Technical Requirements and Gaps for...

32

Advanced Natural Gas Engine Technology for Heavy Duty Vehicles  

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

ALTERNATIVE. EVERY Advanced Natural Gas Engine Advanced Natural Gas Engine Technology for Heavy Duty Vehicles Technology for Heavy Duty Vehicles Dr. Mostafa M Kamel Dr. Mostafa M...

33

Thermoelectric HVAC and Thermal Comfort Enablers for Light-Duty...  

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

Thermoelectric HVAC and Thermal Comfort Enablers for Light-Duty Vehicle Applications Thermoelectric HVAC and Thermal Comfort Enablers for Light-Duty Vehicle Applications 2012 DOE...

34

California Policy Stimulates Carbon Negative CNG for Heavy Duty...  

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

California Policy Stimulates Carbon Negative CNG for Heavy Duty Trucks California Policy Stimulates Carbon Negative CNG for Heavy Duty Trucks Describes system for fueling truck...

35

NOx Adsorbers for Heavy Duty Truck Engines - Testing and Simulation...  

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

NOx Adsorbers for Heavy Duty Truck Engines - Testing and Simulation NOx Adsorbers for Heavy Duty Truck Engines - Testing and Simulation This report provides the results of an...

36

Fuel Efficiency and Emissions Optimization of Heavy-Duty Diesel...  

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

and Emissions Optimization of Heavy-Duty Diesel Engines using Model-Based Transient Calibration Fuel Efficiency and Emissions Optimization of Heavy-Duty Diesel Engines using...

37

Technical Challenges and Opportunities Light-Duty Diesel Engines...  

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

Challenges and Opportunities Light-Duty Diesel Engines in North America Technical Challenges and Opportunities Light-Duty Diesel Engines in North America 2005 Diesel Engine...

38

Plug-In Hybrid Electric Medium Duty Commercial Fleet Demonstration...  

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

Plug-In Hybrid Electric Medium Duty Commercial Fleet Demonstration and Evaluation Plug-In Hybrid Electric Medium Duty Commercial Fleet Demonstration and Evaluation 2011 DOE...

39

A Waste Heat Recovery System for Light Duty Diesel Engines  

SciTech Connect (OSTI)

In order to achieve proposed fuel economy requirements, engines must make better use of the available fuel energy. Regardless of how efficient the engine is, there will still be a significant fraction of the fuel energy that is rejected in the exhaust and coolant streams. One viable technology for recovering this waste heat is an Organic Rankine Cycle. This cycle heats a working fluid using these heat streams and expands the fluid through a turbine to produce shaft power. The present work was the development of such a system applied to a light duty diesel engine. This lab demonstration was designed to maximize the peak brake thermal efficiency of the engine, and the combined system achieved an efficiency of 44.4%. The design of the system is discussed, as are the experimental performance results. The system potential at typical operating conditions was evaluated to determine the practicality of installing such a system in a vehicle.

Briggs, Thomas E [ORNL; Wagner, Robert M [ORNL; Edwards, Kevin Dean [ORNL; Curran, Scott [ORNL; Nafziger, Eric J [ORNL

2010-01-01T23:59:59.000Z

40

Industrial Equipment Demand and Duty Factors  

E-Print Network [OSTI]

Demand and duty factors have been measured for selected equipment (air compressors, electric furnaces, injection molding machines, centrifugal loads, and others) in industrial plants. Demand factors for heavily loaded air compressors were near 100...

Dooley, E. S.; Heffington, W. M.

Note: This page contains sample records for the topic "duty roots expander" 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

Heavy Truck Duty Cycle (HTDC) Project The Heavy Truck Duty Cycle (HTDC)  

E-Print Network [OSTI]

data from trucks operating in long-haul operations. The research program was designed to be conductedHeavy Truck Duty Cycle (HTDC) Project OVERVIEW The Heavy Truck Duty Cycle (HTDC) Project. The project involves efforts to collect, analyze and archive data and information related to class -8 truck

42

E-Print Network 3.0 - additional import duties Sample Search...  

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

Heuristics for Duty Scheduling in Public Transit Summary: Appendix B - Duty Scheduling Graphs 107 12;Introduction In public transit one of the most important... or duty piece....

43

Expanded Plain TEX Steven Smith  

E-Print Network [OSTI]

Expanded Plain TEX Sept 2004 2.8.4 Karl Berry Steven Smith #12;This manual documents the Eplain Berry. Steven Smith wrote the documentation for the commutative diagram macros. (He also wrote

Mintmire, John W.

44

Flavors in an expanding plasma  

E-Print Network [OSTI]

We consider the effect of an expanding plasma on probe matter by determining time-dependent D7 embeddings in the holographic dual of an expanding viscous plasma. We calculate the chiral condensate and meson spectra including contributions of viscosity. The chiral condensate essentially confirms the expectation from the static black hole. For the meson spectra we propose a scheme that is in agreement with the adiabatic approximation. New contributions arise for the vector mesons at the order of the viscosity terms.

Johannes Große; Romuald A. Janik; Piotr Surówka

2008-02-05T23:59:59.000Z

45

Sandia National Laboratories: Sandia Expands an International...  

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

ClimateECAbout ECFacilitiesCRFSandia Expands an International Collaboration and Web Database on Engine Fuel Spray Combustion Research Sandia Expands an International Collaboration...

46

HEAVY-DUTY TRUCK EMISSIONS AND FUEL CONSUMPTION SIMULATING REAL...  

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

HEAVY-DUTY TRUCK EMISSIONS AND FUEL CONSUMPTION SIMULATING REAL-WORLD DRIVING IN LABORATORY CONDITIONS HEAVY-DUTY TRUCK EMISSIONS AND FUEL CONSUMPTION SIMULATING REAL-WORLD DRIVING...

47

Cummins Work Toward Successful Introduction of Light-Duty Clean...  

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

Cummins Work Toward Successful Introduction of Light-Duty Clean Diesel Engines in US Cummins Work Toward Successful Introduction of Light-Duty Clean Diesel Engines in US 2005...

48

Difficulty of Measuring Emissions from Heavy-Duty Engines Equipped...  

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

Difficulty of Measuring Emissions from Heavy-Duty Engines Equipped with SCR and DPF Difficulty of Measuring Emissions from Heavy-Duty Engines Equipped with SCR and DPF In reference...

49

Pneumatic brake control for precision stopping of heavy-duty vehicles  

E-Print Network [OSTI]

6], heavy-duty vehicle maintenance automation, as well astrue” automation are applications on heavy-duty vehicles [

Bu, Fanping; Tan, Han-Shue

2007-01-01T23:59:59.000Z

50

Active Duty Military Tuition Waiver UNIVERSITY OF NEW MEXICO  

E-Print Network [OSTI]

Active Duty Military Tuition Waiver UNIVERSITY OF NEW MEXICO SEMESTER: __________ YEAR of the (DUTY STATION) State of New Mexico. This active duty assignment is for the period from _______________________________________________________ ORGANIZATION Return waiver to: The University of New Mexico Division of Enrollment Management Office

New Mexico, University of

51

Heavy-Duty Low-Temperature and Diesel Combustion & Heavy-Duty...  

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

and CFD Modeling of In-Cylinder Chemical and Physical Processes * Combine planar laser-imaging diagnostics in an optical heavy-duty engine with multi-dimensional computer...

52

Heavy duty transport research needs assessment  

SciTech Connect (OSTI)

As a result of the desire to decrease the dependence of the US on foreign petroleum as a transportation fuel, this report assesses the research needs to further develop heavy duty engines. The topics covered include diesel engines, alternative fuels, electric vehicle technology, gas turbine engines, and stirling cycle alternative engines. (GHH)

Not Available

1991-09-13T23:59:59.000Z

53

Light Duty Vehicle Pathways July 26, 2010  

E-Print Network [OSTI]

Light Duty Vehicle Pathways July 26, 2010 Sam Baldwin Chief Technology Officer Office of Energy Efficiency and Renewable Energy U.S. Department of Energy #12;2 Conventional Oil International Energy Agency #12;3 InterAcademy Panel Statement On Ocean Acidification, 1 June 2009 · Signed by the National

54

Expanding the eukaryotic genetic code  

DOE Patents [OSTI]

This invention provides compositions and methods for producing translational components that expand the number of genetically encoded amino acids in eukaryotic cells. The components include orthogonal tRNAs, orthogonal aminoacyl-tRNA synthetases, orthogonal pairs of tRNAs/synthetases and unnatural amino acids. Proteins and methods of producing proteins with unnatural amino acids in eukaryotic cells are also provided.

Chin, Jason W.; Cropp, T. Ashton; Anderson, J. Christopher; Schultz, Peter G.

2013-01-22T23:59:59.000Z

55

Expanding the eukaryotic genetic code  

DOE Patents [OSTI]

This invention provides compositions and methods for producing translational components that expand the number of genetically encoded amino acids in eukaryotic cells. The components include orthogonal tRNAs, orthogonal aminoacyl-tRNA synthetases, orthogonal pairs of tRNAs/synthetases and unnatural amino acids. Proteins and methods of producing proteins with unnatural amino acids in eukaryotic cells are also provided.

Chin, Jason W. (Cambridge, GB); Cropp, T. Ashton (Bethesda, MD); Anderson, J. Christopher (San Francisco, CA); Schultz, Peter G. (La Jolla, CA)

2009-11-17T23:59:59.000Z

56

Expanding the eukaryotic genetic code  

DOE Patents [OSTI]

This invention provides compositions and methods for producing translational components that expand the number of genetically encoded amino acids in eukaryotic cells. The components include orthogonal tRNAs, orthogonal aminoacyl-tRNA synthetases, orthogonal pairs of tRNAs/synthetases and unnatural amino acids. Proteins and methods of producing proteins with unnatural amino acids in eukaryotic cells are also provided.

Chin, Jason W. (Cambridge, GB); Cropp, T. Ashton (Bethesda, MD); Anderson, J. Christopher (San Francisco, CA); Schultz, Peter G. (La Jolla, CA)

2012-02-14T23:59:59.000Z

57

Expanding the eukaryotic genetic code  

DOE Patents [OSTI]

This invention provides compositions and methods for producing translational components that expand the number of genetically encoded amino acids in eukaryotic cells. The components include orthogonal tRNAs, orthogonal aminoacyl-tRNA synthetases, orthogonal pairs of tRNAs/synthetases and unnatural amino acids. Proteins and methods of producing proteins with unnatural amino acids in eukaryotic cells are also provided.

Chin, Jason W. (Cambridge, GB); Cropp, T. Ashton (Bethesda, MD); Anderson, J. Christopher (San Francisco, CA); Schultz, Peter G. (La Jolla, CA)

2009-12-01T23:59:59.000Z

58

Expanding the eukaryotic genetic code  

DOE Patents [OSTI]

This invention provides compositions and methods for producing translational components that expand the number of genetically encoded amino acids in eukaryotic cells. The components include orthogonal tRNAs, orthogonal aminoacyl-tRNA synthetases, orthogonal pairs of tRNAs/synthetases and unnatural amino acids. Proteins and methods of producing proteins with unnatural amino acids in eukaryotic cells are also provided.

Chin, Jason W. (Cambridge, GB); Cropp, T. Ashton (Bethesda, MD); Anderson, J. Christopher (San Francisco, CA); Schultz, Peter G. (La Jolla, CA)

2010-09-14T23:59:59.000Z

59

Expanding the eukaryotic genetic code  

DOE Patents [OSTI]

This invention provides compositions and methods for producing translational components that expand the number of genetically encoded amino acids in eukaryotic cells. The components include orthogonal tRNAs, orthogonal aminoacyl-tRNA synthetases, orthogonal pairs of tRNAs/synthetases and unnatural amino acids. Proteins and methods of producing proteins with unnatural amino acids in eukaryotic cells are also provided.

Chin, Jason W. (Cambridge, GB); Cropp, T. Ashton (Bethesda, MD); Anderson, J. Christopher (San Francisco, CA); Schultz, Peter G. (La Jolla, CA)

2009-10-27T23:59:59.000Z

60

Expanding the eukaryotic genetic code  

DOE Patents [OSTI]

This invention provides compositions and methods for producing translational components that expand the number of genetically encoded amino acids in eukaryotic cells. The components include orthogonal tRNAs, orthogonal aminoacyl-tRNA synthetases, orthogonal pairs of tRNAs/synthetases and unnatural amino acids. Proteins and methods of producing proteins with unnatural amino acids in eukaryotic cells are also provided.

Chin, Jason W. (Cambridge, GB); Cropp, T. Ashton (Bethesda, MD); Anderson, J. Christopher (San Francisco, CA); Schultz, Peter G. (La Jolla, CA)

2012-05-08T23:59:59.000Z

Note: This page contains sample records for the topic "duty roots expander" 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

Losses and Impact Distribution and Impacts of Annosus Root Disease in Forests of the  

E-Print Network [OSTI]

expanding root disease centers, in groups of various sizes, and as scattered individuals. Distribution impacts on resource and ecosystem values for a single site. Insofar as possible, the net effect in progressively expanding disease centers, in tree groups of various sizes, and in scattered individuals. One

Standiford, Richard B.

62

Optical Expanders with Applications in Optical Computing  

E-Print Network [OSTI]

Optical Expanders with Applications in Optical Computing John H. Reif Akitoshi Yoshida July 20, 1999 Abstract We describe and investigate an optical system which we call an optical expander. An optical expander elec- trooptically expands an optical boolean pattern encoded in d bits into an optical

Reif, John H.

63

Optical Expanders with Applications in Optical Computing  

E-Print Network [OSTI]

Optical Expanders with Applications in Optical Computing John H. Reif \\Lambda Akitoshi Yoshida \\Lambda July 20, 1999 Abstract We describe and investigate an optical system which we call an optical expander. An optical expander elec­ trooptically expands an optical boolean pattern encoded in d bits

Reif, John H.

64

Kansas Consortium Plug-in Hybrid Medium Duty  

SciTech Connect (OSTI)

On September 30, 2008, the US Department of Energy (DoE), issued a cooperative agreement award, DE-FC26-08NT01914, to the Metropolitan Energy Center (MEC), for a project known as “Kansas Consortium Plug-in Hybrid Medium Duty Certification” project. The cooperative agreement was awarded pursuant to H15915 in reference to H. R. 2764 Congressionally Directed Projects. The original agreement provided funding for The Consortium to implement the established project objectives as follows: (1) to understand the current state of the development of a test protocol for PHEV configurations; (2) to work with industry stakeholders to recommend a medium duty vehicle test protocol; (3) to utilize the Phase 1 Eaton PHEV F550 Chassis or other appropriate PHEV configurations to conduct emissions testing; (4) and to make an industry PHEV certification test protocol recommendation for medium duty trucks. Subsequent amendments to the initial agreement were made, the most significant being a revised Scope of Project Objectives (SOPO) that did not address actual field data since it was not available as originally expected. This project was mated by DOE with a parallel project award given to the South Coast Air Quality Management District (SCAQMD) in California. The SCAQMD project involved designing, building and testing of five medium duty plug-in hybrid electric trucks. SCAQMD had contracted with the Electric Power Research Institute (EPRI) to manage the project. EPRI provided the required match to the federal grant funds to both the SCAQMD project and the Kansas Consortium project. The rational for linking the two projects was that the data derived from the SCAQMD project could be used to validate the protocols developed by the Kansas Consortium team. At the same time, the consortium team would be a useful resource to SCAQMD in designating their test procedures for emissions and operating parameters and determining vehicle mileage. The years between award of the cooperative agreements and their completion were problematic for the US and world economies. This resulted in the President and Congress implementing the American Recovery and Reinvestment Act of 2009, abbreviated ARRA (Pub.L. 111-5), commonly referred to as the Stimulus or The Recovery Act. The stimulus money available for transportation projects encouraged the SCAQMD to seek additional funds. In August of 2009, they eventually were awarded an additional $45.5 M, and the scope of their project was expanded to 378 vehicles. However, as a consequence of the stimulus money and the inundation of DOE with applications for new project under the ARRA, the expected time table for producing and testing vehicles was significantly delayed. As a result, these vehicles were not available for validating the protocols developed by the Kansas Consortium. Therefore, in April of 2011, the Scope of Project Objectives (SOPO) for the project was revised, and limited to producing the draft protocol for PHEV certification as its deliverable.

None, None

2012-03-31T23:59:59.000Z

65

TPCP: Rhizina Root Disease RHIZINA ROOT DISEASE  

E-Print Network [OSTI]

of this fungus are usually found on the ground following a slash burn or forest fire. SYMPTOMS Sporophores logging. Heat stimulates spore germination and, under suitable environmental conditions they colonise STRATEGIES The adage "prevention is better than cure" is applicable to preventing an outbreak of Rhizina root

66

Quantitative Phosphoproteomic Analysis of Soybean Root Hairs...  

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

Root Hairs Inoculated with Bradyrhizobium japonicum. Abstract: Root hairs are single hair-forming cells on roots that function to increase root surface area, enhancing water and...

67

EPC Firms Expand Their Role  

E-Print Network [OSTI]

and were financed by the investor-owned electric utilities themselves. The bulk of U.S. base-load fossil, nuclear and hydro power plants were built by major firms such as Bechtel Power, Stone & Webster Enginnering Corp., Ebasco and others. Most... and thus provide the suport required by the financial institutions." HSPE has expanded its canahilities to provide facility operations services. Its past involvement with a nroject may have been two years: it is now sp.ven to eight years, consisting...

Hernandez, L. A. Jr.

68

Expanded Pending Jobs by Group  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc DocumentationP-Series toESnet4:Epitaxial Thin Film XRDEvanExecutiveSRD-13 1ExhibitsExpanded

69

New or Expanding Industries Tax Credit (Montana)  

Broader source: Energy.gov [DOE]

Under the New or Expanding Industries Tax Credit, property used by certain new or expanding industries is eligible for reduced taxable valuation (up to 50% of their taxable value for the first 5...

70

Topics In Primitive Roots  

E-Print Network [OSTI]

This monograph considers a few topics in the theory of primitive roots g(p) modulo a prime p>=2. A few estimates of the least primitive roots g(p) and the least prime primitive roots g^*(p) modulo p, a large prime, are determined. One of the estimate here seems to sharpen the Burgess estimate g(p) 0, to the smaller estimate g(p) 2. The expected order of magnitude is g(p) 1 constant. The corresponding estimates for least prime primitive roots g^*(p) are slightly higher. Anotrher topic deals with an effective lower bound #{p > x/log x for the number of primes p 1. The current results in the literature claim the lower bound #{p > x/(log x)^2, and have restrictions on the minimal number of fixed integers to three or more.

N. A. Carella

2015-01-23T23:59:59.000Z

71

Ricardo's ACTION Strategy: An Enabling Light Duty Diesel Technology...  

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

light duty diesel solutions for the US market Technology Strategy Lowest system cost Engine technology selection Aftertreatment technology selection Control approach & OBD...

72

Plug-In Hybrid Electric Medium Duty Commercial Fleet Demonstration...  

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

rravt068vssmiyasato2011o .pdf More Documents & Publications SCAQMD:Plug-In Hybrid Electric Medium-Duty Commercial Fleet Demonstration and Evaluation Plug-In Hybrid Electric...

73

Heavy-Duty Engine Combustion Optimization for High Thermal Efficiency...  

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

Combustion Optimization for High Thermal Efficiency Targeting EPA 2010 Emissions Heavy-Duty Engine Combustion Optimization for High Thermal Efficiency Targeting EPA 2010 Emissions...

74

Very High Fuel Economy, Heavy Duty Truck, Narrow Range Speed...  

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

Heavy Duty Truck, Narrow Range Speed Engine, Optimized Via Unique Energy Recovery Turbines and Facilitated by High Efficiency Continuously Variable Drivetrain Very High Fuel...

75

Heavy-Duty Natural Gas Drayage Truck Replacement Program  

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

Heavy-Duty Natural Gas Drayage Truck Replacement Program Principal Investigator: Vicki White South Coast Air Quality Management District May 16, 2012 Project ID ARRAVT045 This...

76

High Fuel Economy Heavy-Duty Truck Engine  

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

contain any proprietary, confidential, or otherwise restricted information ACE060 High Fuel Economy Heavy Duty Truck Engine Overview Timeline October 2007 - October 2011 Barriers...

77

Truck Duty Cycle and Performance Data Collection and Analysis...  

Office of Environmental Management (EM)

Duty Cycle and Performance Data Collection and Analysis Program 2011 DOE Hydrogen and Fuel Cells Program, and Vehicle Technologies Program Annual Merit Review and Peer Evaluation...

78

Zero Emission Heavy Duty Drayage Truck Demonstration | Department...  

Office of Environmental Management (EM)

Zero Emission Heavy Duty Drayage Truck Demonstration 2013 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation...

79

Glossary of Intellectual Property related terminology Assigned Duty of Employment (or Assigned Duty)  

E-Print Network [OSTI]

) Duty(ies) or activity(ies), within an employee's Scope of Employment, that an employer assigns research agreement. that is patentable, copyrightable, a trade secret, or otherwise protectable efforts to protect or to commercialize these Inventions back to that funding agency. The Act also reserves

Salama, Khaled

80

Expanding the Trilinos developer community.  

SciTech Connect (OSTI)

The Trilinos Project started approximately nine years ago as a small effort to enable research, development and ongoing support of small, related solver software efforts. The 'Tri' in Trilinos was intended to indicate the eventual three packages we planned to develop. In 2007 the project expanded its scope to include any package that was an enabling technology for technical computing. Presently the Trilinos repository contains over 55 packages covering a broad spectrum of reusable tools for constructing full-featured scalable scientific and engineering applications. Trilinos usage is now worldwide, and many applications have an explicit dependence on Trilinos for essential capabilities. Users come from other US laboratories, universities, industry and international research groups. Awareness and use of Trilinos is growing rapidly outside of Sandia. Members of the external research community are becoming more familiar with Trilinos, its design and collaborative nature. As a result, the Trilinos project is receiving an increasing number of requests from external community members who want to contribute to Trilinos as developers. To-date we have worked with external developers in an ad hoc fashion. Going forward, we want to develop a set of policies, procedures, tools and infrastructure to simplify interactions with external developers. As we go forward with multi-laboratory efforts such as CASL and X-Stack, and international projects such as IESP, we will need a more streamlined and explicit process for making external developers 'first-class citizens' in the Trilinos development community. This document is intended to frame the discussion for expanding the Trilinos community to all strategically important external members, while at the same time preserving Sandia's primary leadership role in the project.

Heroux, Michael Allen

2010-10-01T23:59:59.000Z

Note: This page contains sample records for the topic "duty roots expander" 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

Light Duty Vehicle Pathways | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-UpHeatMulti-Dimensionalthe10IO1OP001 Letter Report:Life-CycleDuty Vehicle Pathways Light

82

alternative fuel light-duty vehicles  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear SecurityTensile Strain Switched FerromagnetismWaste andAnniversary, part 2Zenoss,AmineBroadbandLight-Duty Vehicles T

83

Energy-efficient Localisation: GPS Duty Cycling with Radio Ranging  

E-Print Network [OSTI]

of operational constraints and the very high energy usage of this technology. The obvious solution is to dutyEnergy-efficient Localisation: GPS Duty Cycling with Radio Ranging Raja Jurdak CSIRO ICT Centre Peter Corke Queensland University of Technology Alban Cotillon INSA-Lyon Dhinesh Dharman CSIRO ICT

Boyer, Edmond

84

MTDC Safety Sensor Technology Beyond the standard duty cycle data  

E-Print Network [OSTI]

MTDC Safety Sensor Technology Background Beyond the standard duty cycle data collection system used in the Department of Energy's Medium Truck Duty Cycle program, additional sensors were installed on three test Administration. The real-time brake stroke, tire pressure, and weight information obtained from these sensors

85

Heavy-Duty Truck Engine: 2007 Emissions with Excellent Fuel Economy...  

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

Heavy-Duty Truck Engine: 2007 Emissions with Excellent Fuel Economy Heavy-Duty Truck Engine: 2007 Emissions with Excellent Fuel Economy 2004 Diesel Engine Emissions Reduction...

86

In-Use Performance Results of Medium Duty Electric Vehicles (Presentation)  

SciTech Connect (OSTI)

This presentation describes a DOE program to monitor and report on vehicle performance and energy utilization of medium-duty and heavy-duty electric vehicles.

Walkowicz, K.

2012-07-01T23:59:59.000Z

87

Measuring "Real World" Heavy-Duty Diesel Emissions with a Mobile...  

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

Measuring "Real World" Heavy-Duty Diesel Emissions with a Mobile Lab Measuring "Real World" Heavy-Duty Diesel Emissions with a Mobile Lab 2002 DEER Conference Presentation:...

88

Lung Toxicity and Mutagenicity of Emissions From Heavy-Duty Compressed...  

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

Lung Toxicity and Mutagenicity of Emissions From Heavy-Duty Compressed Natural Gas (CNG)-Powered Vehicles Lung Toxicity and Mutagenicity of Emissions From Heavy-Duty Compressed...

89

Improving the Efficiency of Light-Duty Vehicle HVAC Systems using...  

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

Light-Duty Vehicle HVAC Systems using Zonal Thermoelectric Devices and Comfort Modeling Improving the Efficiency of Light-Duty Vehicle HVAC Systems using Zonal Thermoelectric...

90

The Expanded Very Large Array  

E-Print Network [OSTI]

In almost 30 years of operation, the Very Large Array (VLA) has proved to be a remarkably flexible and productive radio telescope. However, the basic capabilities of the VLA have changed little since it was designed. A major expansion utilizing modern technology is currently underway to improve the capabilities of the VLA by at least an order of magnitude in both sensitivity and in frequency coverage. The primary elements of the Expanded Very Large Array (EVLA) project include new or upgraded receivers for continuous frequency coverage from 1 to 50 GHz, new local oscillator, intermediate frequency, and wide bandwidth data transmission systems to carry signals with 16 GHz total bandwidth from each antenna, and a new digital correlator with the capability to process this bandwidth with an unprecedented number of frequency channels for an imaging array. Also included are a new monitor and control system and new software that will provide telescope ease of use. Scheduled for completion in 2012, the EVLA will prov...

Perley, R; Jackson, J; Butler, B; Carlson, B; Fort, D; Dewdney, P; Clark, B; Hayward, R; Durand, S; Revnell, M; McKinnon, M

2009-01-01T23:59:59.000Z

91

Lightweight Composite Materials for Heavy Duty Vehicles  

SciTech Connect (OSTI)

The main objective of this project is to develop, analyze and validate data, methodologies and tools that support widespread applications of automotive lightweighting technologies. Two underlying principles are guiding the research efforts towards this objective: • Seamless integration between the lightweight materials selected for certain vehicle systems, cost-effective methods for their design and manufacturing, and practical means to enhance their durability while reducing their Life-Cycle-Costs (LCC). • Smooth migration of the experience and findings accumulated so far at WVU in the areas of designing with lightweight materials, innovative joining concepts and durability predictions, from applications to the area of weight savings for heavy vehicle systems and hydrogen storage tanks, to lightweighting applications of selected systems or assemblies in light–duty vehicles.

Pruez, Jacky; Shoukry, Samir; Williams, Gergis; Shoukry, Mark

2013-08-31T23:59:59.000Z

92

The Ocean's least productive waters are expanding  

E-Print Network [OSTI]

The Ocean's least productive waters are expanding Jeffrey Polovina, Evan Howell, Melanie AbecassisWiFS Annual mean depth integrated net primary productivity (data from Behrenfeld 2007) #12;N Pacific Monthly for Pacific and Atlantic oligotrophic gyres expanding 0.79 ­ 4.40 %/yr (6.32- 35.2% increase in 2006 compared

Hawai'i at Manoa, University of

93

New Demands on Heavy Duty Engine Management Systems  

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

on Heavy Duty Engine Management Systems Excellence in Automotive R&D Emissions Based Process Control NOx-Reducing by EGR NOx -Reducing by SOI Freez e Activation Signal...

94

Duty Cycle Analysis & Tools: Maximizing Vehicle Performance (Presentation)  

SciTech Connect (OSTI)

Shows that the benefits of using hybrid vehicle trucks in fleets depends on the duty cycle, or how the vehicles will be driven (e.g., stop and go) over a particular route (e.g., urban or rural).

Walkowicz, K.

2009-10-28T23:59:59.000Z

95

Pay and Leave Administration and Hours of Duty  

Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

The order establishes requirements and responsibilities for the management of pay, including overtime pay and compensatory time, leave administration, time and attendance reporting, and hours of duty. Cancels DOE O 322.1B and DOE O 535.1

2011-01-19T23:59:59.000Z

96

Pay and Leave Administration and Hours of Duty  

Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

This Order establishes requirements and responsibilities for the management of pay, including overtime and compensatory time, leave administration, and hours of duty. Cancels DOE O 322.1A. Canceled by DOE O 322.1C.

2005-01-14T23:59:59.000Z

97

The ethanol heavy-duty truck fleet demonstration project  

SciTech Connect (OSTI)

This project was designed to test and demonstrate the use of a high- percentage ethanol-blended fuel in a fleet of heavy-duty, over-the- road trucks, paying particular attention to emissions, performance, and repair and maintenance costs. This project also represents the first public demonstration of the use of ethanol fuels as a viable alternative to conventional diesel fuel in heavy-duty engines.

NONE

1997-06-01T23:59:59.000Z

98

Heavy-Duty Low-Temperature and Diesel Combustion & Heavy-Duty Combustion  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-UpHeatMulti-Dimensional Subject:Ground Hawaii CleanHeat PumpDuty HCCI

99

Heavy-Duty Low-Temperature and Diesel Combustion & Heavy-Duty Combustion  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-UpHeatMulti-Dimensional Subject:Ground Hawaii CleanHeat PumpDuty HCCIModeling |

100

Heavy-Duty Low-Temperature and Diesel Combustion & Heavy-Duty Combustion  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-UpHeatMulti-Dimensional Subject:Ground Hawaii CleanHeat PumpDuty HCCIModeling |Modeling |

Note: This page contains sample records for the topic "duty roots expander" 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

Heavy-Duty Low-Temperature and Diesel Combustion & Heavy-Duty Combustion  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-UpHeatMulti-Dimensional Subject:Ground Hawaii CleanHeat PumpDuty HCCIModeling |Modeling

102

Expandability, reversibility, and optimal capacity choice  

E-Print Network [OSTI]

We develop continuous-time models of capacity choice when demand fluctuates stochastically, and the firm's opportunities to expand or contract are limited. Specifically, we consider costs of investing or disinvesting that ...

Dixit, Avinash K.

1997-01-01T23:59:59.000Z

103

Expanding the Repertoire of Chalcogenide Nanocrystal Networks...  

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

Expanding the Repertoire of Chalcogenide Nanocrystal Networks: Ag2Se Gels and Aerogels by Cation Exchange Reactions Home Author: Q. Yao, I. U. Arachchige, S. L. Brock Year: 2009...

104

Expanding Robust HCCI Operation (Delphi CRADA)  

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

Expanding Robust HCCI Operation A CRADA project with Delphi Automotive Systems Project ID: ACE053 2011 U.S. DOE Hydrogen and Vehicle Technologies Program Annual Merit Review and...

105

Gravitational clustering in Static and Expanding Backgrounds  

E-Print Network [OSTI]

A brief summary of several topics in the study of gravitational many body problem is given. The discussion covers both static backgrounds (applicable to astrophysical systems) as well as clustering in an expanding background (relevant for cosmology)

T. Padmanabhan

2003-08-28T23:59:59.000Z

106

Arizona Foundation Expands Weatherization Training Center | Department...  

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

upgrades for low-income residents, but in Maricopa County and the Phoenix area it also trains a good part of the weatherization workforce to do that. Expanding building science...

107

Vehicle Technologies Office Merit Review 2014: Heavy-Duty Low-Temperature and Diesel Combustion & Heavy-Duty Combustion Modeling  

Broader source: Energy.gov [DOE]

Presentation given by Sandia National Laboratories at 2014 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about heavy-duty low...

108

Alfalfa Root Rot.  

E-Print Network [OSTI]

. ........................ .Assistant in Chemil Texas Agtriaultutral Expe~iment Station. ALFALFA ROOT ROT A comparatively new trouble which occurs in growing alfalfa is the tendency to die in spots which has been reported from various sections of the state. By many this has been..., as fairly expressing the experience of all who have tried to grow alfalfa under similar conditions, is one of \\Villiam~on county's most progressive and ener- getic farmers, and on:! who ha3 taken a great interest in alfalfa. H:: mritea as follom.3 fro...

Curtis, Geo. W.

1892-01-01T23:59:59.000Z

109

Lecture 17 Appendix B (analytic functions and contour We want to consider the analyticity properties (C-R) of the square root function  

E-Print Network [OSTI]

the analyticity properties (C-R) of the square root function In[1]:= f18 z_ : Sqrt z Now write this function_, y_ : Refine Re ComplexExpand f18 x y , Element x y, Reals ; V18 x_, y_ : Refine Im ComplexExpand f18

Ellis, Steve

110

Hybrid options for light-duty vehicles.  

SciTech Connect (OSTI)

Hybrid electric vehicles (HEVs) offer great promise in improving fuel economy. In this paper, we analyze why, how, and by how much vehicle hybridization can reduce energy consumption and improve fuel economy. Our analysis focuses on efficiency gains associated solely with vehicle hybridization. We do not consider such other measures as vehicle weight reduction or air- and tire-resistance reduction, because such measures would also benefit conventional technology vehicles. The analysis starts with understanding the energy inefficiencies of light-duty vehicles associated with different operation modes in US and Japanese urban and highway driving cycles, with the corresponding energy-saving potentials. The potential for fuel economy gains due to vehicle hybridization can be estimated almost exclusively on the basis of three elements: the reducibility of engine idling operation, the recoverability of braking energy losses, and the capability of improving engine load profiles to gain efficiency associated with specific HEV configurations and control strategies. Specifically, we evaluate the energy efficiencies and fuel economies of a baseline MY97 Corolla-like conventional vehicle (CV), a hypothetical Corolla-based minimal hybrid vehicle (MHV), and a MY98 Prius-like full hybrid vehicle (FHV). We then estimate energy benefits of both MHVs and FHVs over CVs on a performance-equivalent basis. We conclude that the energy benefits of hybridization vary not only with test cycles, but also with performance requirements. The hybrid benefits are greater for ''Corolla (high) performance-equivalent'' vehicles than for ''Prius (low) performance-equivalent'' vehicles. An increasing acceleration requirement would result in larger fuel economy benefits from vehicle hybridization.

An, F., Stodolsky, F.; Santini, D.

1999-07-19T23:59:59.000Z

111

GNEP Element:Expand Domestic Use of Nuclear Power | Department...  

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

Expand Domestic Use of Nuclear Power GNEP Element:Expand Domestic Use of Nuclear Power A report discussing the intentions of the GNEP. GNEP Element:Expand Domestic Use of Nuclear...

112

Expanding Science and Energy Literacy with America's Science...  

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

Expanding Science and Energy Literacy with America's Science and Technology Centers Expanding Science and Energy Literacy with America's Science and Technology Centers October 20,...

113

Establish and Expand Commercial Production of Graphite Anode...  

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

and Expand Commercial Production of Graphite Anode Materials for High Performance Lithium-ion Batteries Establish and Expand Commercial Production of Graphite Anode Materials...

114

Model for Sustainable Urban Design With Expanded Sections on...  

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

Design With Expanded Sections on Distributed Energy Resources, February 2004 Model for Sustainable Urban Design With Expanded Sections on Distributed Energy Resources, February...

115

SBA Expands Access to Contracting Opportunities for Women-Owned...  

Office of Environmental Management (EM)

SBA Expands Access to Contracting Opportunities for Women-Owned Small Businesses SBA Expands Access to Contracting Opportunities for Women-Owned Small Businesses January 22, 2013 -...

116

Combined Heat and Power: Expanding CHP in Your State | Department...  

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

Combined Heat and Power: Expanding CHP in Your State Combined Heat and Power: Expanding CHP in Your State This presentation, given through the DOE's Technical Assitance Program...

117

Better Buildings Challenge is Expanding, Improving Energy Efficiency...  

Energy Savers [EERE]

is Expanding, Improving Energy Efficiency Throughout America Better Buildings Challenge is Expanding, Improving Energy Efficiency Throughout America December 5, 2013 - 4:36pm...

118

activation expanded scope: Topics by E-print Network  

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

nanomaterials. He has,16 The Gibbs free energy for molecular systems at the SSI comprises an enthalpic contribution dominated 137 Expanding the Concept &Expanding the...

119

Expanding Educational Opportunities for the Wind Energy Workforce...  

Energy Savers [EERE]

Expanding Educational Opportunities for the Wind Energy Workforce Expanding Educational Opportunities for the Wind Energy Workforce April 11, 2013 - 12:00am Addthis The University...

120

Global Nuclear Energy Partnership Fact Sheet - Expand Domestic...  

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

Expand Domestic Use of Nuclear Power Global Nuclear Energy Partnership Fact Sheet - Expand Domestic Use of Nuclear Power GNEP will build on the recent advances made by the...

Note: This page contains sample records for the topic "duty roots expander" 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

Vice President Biden Unveils Report Focused on Expanding Green...  

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

Unveils Report Focused on Expanding Green Jobs And Energy Savings For Middle Class Families Vice President Biden Unveils Report Focused on Expanding Green Jobs And Energy Savings...

122

DYNAMICAL MODEL OF AN EXPANDING SHELL  

SciTech Connect (OSTI)

Expanding blast waves are ubiquitous in many astronomical sources, such as supernova remnants, X-ray emitting binaries, and gamma-ray bursts. I consider here the dynamics of such an expanding blast wave, both in the adiabatic and the radiative regimes. As the blast wave collects material from its surroundings, it decelerates. A full description of the temporal evolution of the blast wave requires consideration of both the energy density and the pressure of the shocked material. The obtained equation is different from earlier works in which only the energy was considered. The solution converges to the familiar results in both the ultrarelativistic and the sub-relativistic (Newtonian) regimes.

Pe'er, Asaf [Harvard-Smithsonian Center for Astrophysics, MS-51, 60 Garden Street, Cambridge, MA 02138 (United States)

2012-06-10T23:59:59.000Z

123

Fleet assessment for opportunities to effectively deploy light duty alternative fuel vehicles  

SciTech Connect (OSTI)

The City of Detroit conducted an initial program to assess the potential for substitution of vehicles currently in operation with alternative fuel vehicles. A key task involved the development of an operating profile of the participant light truck and van fleets involved in the study. To do this a survey of operators of light duty trucks and vans within the project participant fleets was conducted. These survey results were analyzed to define the potential for substitution of conventional vehicles with alternate fuel vehicles with alternate fuel vehicles and to identify candidates for participation in the Mini-Demonstration portion of the project. The test program involved the deployment of an electric van (two GM Griffon Electric Vans provided by Detroit Edison) at seven Mini-Demonstration sites for a period of four weeks each for test and evaluation. The Technical Work Group then analyzed vehicle performance data and used a questionnaire to obtain impressions and attitudes of the users toward the acceptability of the electric van. The Technical Work Group (TWG) and Management Assessment Group (MAG) then prepared recommendations and an implementation plan to develop further information aimed toward eventual expanded deployment of alternative fuel vehicles within project participant light duty fleets. The MAG concluded that the study had been beneficial in collecting and developing important quantitative information, introducing a set of public fleet managers to alternative fuel vehicle opportunities and features, and had provided specific experience with the Griffon van which provided some indications of requirements in such vehicles if they are to be a normal part of public fleet operations. These included the need for some increase of the mileage range of the Griffon, an improvement in the ride and handling of the Griffon, and several minor'' difficulties experienced with malfunctioning or inconvenient characteristics of the Griffon equipment. 25 figs., 1 tab.

Not Available

1990-05-01T23:59:59.000Z

124

Medium and Heavy Duty Vehicle Field Evaluations (Presentation)  

SciTech Connect (OSTI)

This presentation discusses field evaluations of medium- and heavy-duty vehicles performed by NREL. The project provides medium-duty (MD) and heavy-duty (HD) test results, aggregated data, and detailed analysis, including 3rd party unbiased data (data that would not normally be shared by industry in an aggregated and detailed manner). Over 5.6 million miles of advanced technology MD and HD truck data have been collected, documented, and analyzed on over 240 different vehicles since 2002. Data, analysis, and reports are shared within DOE, national laboratory partners, and industry for R&D planning and strategy. The results help guide R&D for new technology development, help define intelligent usage of newly developed technology, and help fleets/users understand all aspects of advanced technology.

Walkowicz, K.

2014-06-01T23:59:59.000Z

125

Light-duty diesel engine development status and engine needs  

SciTech Connect (OSTI)

This report reviews, assesses, and summarizes the research and development status of diesel engine technology applicable to light-duty vehicles. In addition, it identifies specific basic and applied research and development needs in light-duty diesel technology and related health areas where initial or increased participation by the US Government would be desirable. The material presented in this report updates information provided in the first diesel engine status report prepared by the Aerospace Corporation for the Department of Energy in September, 1978.

Not Available

1980-08-01T23:59:59.000Z

126

Expanding Earth Sciences Research with Layerscape  

E-Print Network [OSTI]

Expanding Earth Sciences Research with Layerscape In Brief Websites: layerscape Earth in three-dimensional space and time. Oceanographers and earth scientists are using this free set of serious illness in the hospital was pneumonia." The Earth is a vast, complicated system comprised

Jakubowski, Mariusz H.

127

HAMILTON DECOMPOSITIONS OF REGULAR EXPANDERS: APPLICATIONS  

E-Print Network [OSTI]

HAMILTON DECOMPOSITIONS OF REGULAR EXPANDERS: APPLICATIONS DANIELA K¨UHN AND DERYK OSTHUS Abstract is linear in n and which is a robust outexpander has a decomposition into edge-disjoint Hamilton cycles into (n - 1)/2 edge-disjoint Hamilton cycles, whenever n is sufficiently large. This verified a conjecture

Kühn, Daniela

128

Local symmetries of non-expanding horizons  

E-Print Network [OSTI]

Local symmetries of a non-expanding horizon has been investigated in the 1st order formulation of gravity. When applied to a spherically symmetric isolated horizon only a U(1) subgroup of the Lorentz group survives as residual local symmetry that one can make use of in constructing an effective theory on the horizon.

Rudranil Basu; Ayan Chatterjee; Amit Ghosh

2010-04-21T23:59:59.000Z

129

Development of a Waste Heat Recovery System for Light Duty Diesel...  

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

Light Duty Diesel Engines A Quantum Leap for Heavy-Duty Truck Engine Efficiency - Hybrid Power System of Diesel and WHR-ORC Engines High Efficiency Engine Systems Development and...

130

A Quantum Leap for Heavy-Duty Truck Engine Efficiency - Hybrid...  

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

A Quantum Leap for Heavy-Duty Truck Engine Efficiency - Hybrid Power System of Diesel and WHR-ORC Engines A Quantum Leap for Heavy-Duty Truck Engine Efficiency - Hybrid Power...

131

High-Efficiency, Ultra-Low Emission Combustion in a Heavy-Duty...  

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

High-Efficiency, Ultra-Low Emission Combustion in a Heavy-Duty Engine via Fuel Reactivity Control High-Efficiency, Ultra-Low Emission Combustion in a Heavy-Duty Engine via Fuel...

132

Effects of Catalysts on Emissions from Heavy-Duty Diesel Retrofits...  

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

Catalysts on Emissions from Heavy-Duty Diesel Retrofits for PM and NOX Control Effects of Catalysts on Emissions from Heavy-Duty Diesel Retrofits for PM and NOX Control The more...

133

ARB's Study of Emissions from Diesel and CNG Heavy-duty Transit...  

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

ARB's Study of Emissions from Diesel and CNG Heavy-duty Transit Buses ARB's Study of Emissions from Diesel and CNG Heavy-duty Transit Buses 2002 DEER Conference Presentation:...

134

A Study of Emissions from a Light Duty Diesel Engine with the...  

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

A Study of Emissions from a Light Duty Diesel Engine with the European Particulate Measurement Programme A Study of Emissions from a Light Duty Diesel Engine with the European...

135

Reduction of Heavy-Duty Fuel Consumption and CO2 Generation ...  

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

Heavy-Duty Fuel Consumption and CO2 Generation -- What the Industry Does and What the Government Can Do Reduction of Heavy-Duty Fuel Consumption and CO2 Generation -- What the...

136

E-Print Network 3.0 - ad valorem duty Sample Search Results  

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

ad valorem duty Search Powered by Explorit Topic List Advanced Search Sample search results for: ad valorem duty Page: << < 1 2 3 4 5 > >> 1 County Property Values and Tax Impacts...

137

E-Print Network 3.0 - active duty military Sample Search Results  

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

military leave to employees who are called to active duty in accordance with the terms described below... of the two for the remainder of the active duty period. (See...

138

Economic Comparison of LNT Versus Urea SCR for Light-Duty Diesel...  

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

Comparison of LNT Versus Urea SCR for Light-Duty Diesel Vehicles in the U.S. Market Economic Comparison of LNT Versus Urea SCR for Light-Duty Diesel Vehicles in the U.S. Market...

139

High-Efficiency Clean Combustion in Light-Duty Multi-Cylinder...  

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

High-Efficiency Clean Combustion in Light-Duty Multi-Cylinder Diesel Engines High-Efficiency Clean Combustion in Light-Duty Multi-Cylinder Diesel Engines 2010 DOE Vehicle...

140

Biodiesel Effects on the Operation of U.S. Light Duty Tier 2...  

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

Biodiesel Effects on the Operation of U.S. Light Duty Tier 2 Engine and Aftertreatment Systems Biodiesel Effects on the Operation of U.S. Light Duty Tier 2 Engine and...

Note: This page contains sample records for the topic "duty roots expander" 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

Biodiesel Effects on the Operation of U.S. Light-Duty Tier 2...  

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

Biodiesel Effects on the Operation of U.S. Light-Duty Tier 2 Engine and Aftertreatment Systems Biodiesel Effects on the Operation of U.S. Light-Duty Tier 2 Engine and...

142

High Efficiency Clean Combustion in Multi-Cylinder Light-Duty...  

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

& Publications High-Efficiency Clean Combustion in Light-Duty Multi-Cylinder Diesel Engines High Efficiency Clean Combustion in Multi-Cylinder Light-Duty Engines High Efficiency...

143

High Efficiency Clean Combustion in Multi-Cylinder Light-Duty...  

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

Light-Duty Multi-Cylinder Engine High Efficiency Clean Combustion in Multi-Cylinder Light-Duty Engines Vehicle Technologies Office Merit Review 2014: Impacts of Advanced Combustion...

144

Can We Accurately Measure In-Use Emissions from Heavy-Duty Diesel...  

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

We Accurately Measure In-Use Emissions from Heavy-Duty Diesel Engines? Can We Accurately Measure In-Use Emissions from Heavy-Duty Diesel Engines? Poster presentation at the 2007...

145

High Efficiency Clean Combustion in Multi-Cylinder Light-Duty...  

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

Efficiency Clean Combustion in Multi-Cylinder Light-Duty Engines High Efficiency Clean Combustion in Multi-Cylinder Light-Duty Engines 2012 DOE Hydrogen and Fuel Cells Program and...

146

System-Response Issues Imposed by Biodiesel in a Medium-Duty...  

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

System-Response Issues Imposed by Biodiesel in a Medium-Duty Diesel Engine System-Response Issues Imposed by Biodiesel in a Medium-Duty Diesel Engine The objective of the current...

147

Creation and Testing of the ACES Heavy Heavy-Duty Diesel Engine...  

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

Creation and Testing of the ACES Heavy Heavy-Duty Diesel Engine Test Schedule for Representative Measurement of Heavy-Duty Engine Emissions Creation and Testing of the ACES Heavy...

148

Emissions from Heavy-Duty Diesel Engine with EGR using Oil Sands...  

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

Emissions from Heavy-Duty Diesel Engine with EGR using Oil Sands Derived Fuels Emissions from Heavy-Duty Diesel Engine with EGR using Oil Sands Derived Fuels 2003 DEER Conference...

149

On-Road Remote Sensing of Heavy-duty Diesel Truck  

E-Print Network [OSTI]

On-Road Remote Sensing of Heavy-duty Diesel Truck Emissions in the Austin- San Marcos Area: August, HC, and NO to CO2 and to get percent opacity readings for heavy-duty diesel trucks with elevated. The fleet of these heavy-duty diesel trucks exhibits a distribution that is close to normal where the top 20

Denver, University of

150

TRB 08-1311 Link-Based Emission Factors for Heavy-Duty Diesel Trucks Based  

E-Print Network [OSTI]

TRB 08-1311 Link-Based Emission Factors for Heavy-Duty Diesel Trucks Based on Real-World Data H and Zhai 1 ABSTRACT Heavy-duty diesel vehicles contribute a substantial fraction of nitrogen oxides unloaded trucks. Replacing diesel fuel with biodiesel fuel for heavy-duty trucks may reduce tailpipe

Frey, H. Christopher

151

Heavy duty transport research needs assessment. Final report  

SciTech Connect (OSTI)

As a result of the desire to decrease the dependence of the US on foreign petroleum as a transportation fuel, this report assesses the research needs to further develop heavy duty engines. The topics covered include diesel engines, alternative fuels, electric vehicle technology, gas turbine engines, and stirling cycle alternative engines. (GHH)

Not Available

1991-09-13T23:59:59.000Z

152

Light-Duty Fuel Cell Vehicles State of Development  

E-Print Network [OSTI]

Light-Duty Fuel Cell Vehicles State of Development Fuel Cell Vehicles (FCVs) An international race is under way to commercialize fuel cell vehicles (FCVs). The competition is characterized by rapid by taking full advantage of the characteristics and capabilities of fuel cells. But most of the vehicles

153

Brasenose College Public Sector Equality Duty Scheme 2012 to 2015  

E-Print Network [OSTI]

to the processes of selection and retention of staff and students at all levels. Our aim is to treat all Duty and College responsibilities This document sets out the College's responsibilities under suffered by people due to their protected characteristics; *meeting the demands of people with protected

Oxford, University of

154

Natural Gas-optimized Advanced Heavy-duty Engine  

E-Print Network [OSTI]

Natural Gas-optimized Advanced Heavy-duty Engine Transportation Research PIER Transportation of natural gas vehicles as a clean alternative is currently limited to smaller engine displacements and spark ignition, which results in lower performance. A large displacement natural gas engine has

155

Pay and Leave Administration and Hours of Duty  

Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

The order establishes requirements and responsibilities for the management of pay, including overtime pay and compensatory time, leave administration, time and attendance reporting, and hours of duty. Cancels DOE O 322.1B and DOE O 535.1. Admin Chg 1, dated 5-10-12, cancels DOE O 322.1C.

2011-01-19T23:59:59.000Z

156

ESSENTIAL DUTIES & RESPONSIBILITIES Workforce Planning | 408-924-2250  

E-Print Network [OSTI]

ESSENTIAL DUTIES & RESPONSIBILITIES CHECKLIST Workforce Planning | 408-924-2250 HR: 07 of the requested position, and submit to Workforce Planning with other required material. General Information & RESPONSIBILITIES CHECKLIST Workforce Planning | 408-924-2250 HR: 07/01/08 Assists students with add/drop forms

Eirinaki, Magdalini

157

Gravitational Dynamics in an Expanding Universe  

E-Print Network [OSTI]

The dynamical evolution of collisionless particles in an expanding background is described. After discussing qualitatively the key features, the gravitational clustering of collisionless particles in an expanding universe is modelled using some simple physical ideas. I show that it is indeed possible to understand the nonlinear clustering in terms of three well defined regimes: (1) linear regime (2) quasilinear regime which is dominated by scale-invariant radial infall and (3) nonlinear regime dominated by nonradial motions and mergers. Modelling each of these regimes separately I show how the nonlinear two point correlation function can be related to the linear correlation function in hierarchical models. This analysis leads to results which are in good agreement with numerical simulations thereby providing an explanation for numerical results. The ideas presented here will also serve as a powerful analytical tool to investigate nonlinear clustering in different models. Several implications of the result are discussed.

T. Padmanabhan

1995-10-05T23:59:59.000Z

158

Expanding and Collapsing Scalar Field Thin Shell  

E-Print Network [OSTI]

This paper deals with the dynamics of scalar field thin shell in the Reissner-Nordstr$\\ddot{o}$m geometry. The Israel junction conditions between Reissner-Nordstr$\\ddot{o}$m spacetimes are derived, which lead to the equation of motion of scalar field shell and Klien-Gordon equation. These equations are solved numerically by taking scalar field model with the quadratic scalar potential. It is found that solution represents the expanding and collapsing scalar field shell. For the better understanding of this problem, we investigate the case of massless scalar field (by taking the scalar field potential zero). Also, we evaluate the scalar field potential when $p$ is an explicit function of $R$. We conclude that both massless as well as massive scalar field shell can expand to infinity at constant rate or collapse to zero size forming a curvature singularity or bounce under suitable conditions.

M. Sharif; G. Abbas

2012-08-27T23:59:59.000Z

159

Non-expanding impulsive gravitational waves  

E-Print Network [OSTI]

We investigate a class of impulsive gravitational waves which propagate either in Minkowski or in the (anti-)de Sitter background. These waves are constructed as impulsive members of the Kundt class $P(\\Lambda)$ of non-twisting, non-expanding type N solutions of vacuum Einstein equations with a cosmological constant $\\Lambda$. We show that the only non-trivial waves of this type in Minkowski spacetime are impulsive pp-waves. For $\\Lambda\

J. Podolsky

1998-07-29T23:59:59.000Z

160

State authority in an expanded territorial sea  

E-Print Network [OSTI]

of the United States in the disputed area. The 1950 Texas case concerned claims encompassing the entire extent of the continental shelf off the coast of Texas. Texas conceded that the federal aovernment had paramount powers over this area with respect to nav... development and current status of state authority in the territorial sea. The possi- bility of the United States expanding its territorial sea to twelve miles is then examined. This paper then proceeds with an examination of what types of authoritl...

Fulbright, Michael Gene

1977-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "duty roots expander" 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

Expandable Metal Liner For Downhole Components  

DOE Patents [OSTI]

A liner for an annular downhole component is comprised of an expandable metal tube having indentations along its surface. The indentations are formed in the wall of the tube either by drawing the tube through a die, by hydroforming, by stamping, or roll forming and may extend axially, radially, or spirally along its wall. The indentations accommodate radial and axial expansion of the tube within the downhole component. The tube is inserted into the annular component and deformed to match an inside surface of the component. The tube may be expanded using a hydroforming process or by drawing a mandrel through the tube. The tube may be expanded in such a manner so as to place it in compression against the inside wall of the component. The tube is useful for improving component hydraulics, shielding components from contamination, inhibiting corrosion, and preventing wear to the downhole component during use. It may also be useful for positioning conduit and insulated conductors within the component. An insulating material may be disposed between the tube and the component in order to prevent galvanic corrosion of the downhole component.

Hall, David R. (Provo, UT); Fox, Joe R. (Provo, UT)

2004-10-05T23:59:59.000Z

162

Measurements of an expanding surface flashover plasma  

SciTech Connect (OSTI)

A better understanding of vacuum surface flashover and the plasma produced by it is of importance for electron and ion sources, as well as advanced accelerators and other vacuum electronic devices. This article describes time-of-flight and biased-probe measurements made on the expanding plasma generated from a vacuum surface flashover discharge. The plasma expanded at velocities of 1.2–6.5?cm/?s, and had typical densities of 10{sup 10}–10{sup 12}?cm{sup ?3}. The expansion velocity of the plasma leading edge often exhibited a sharp increase at distances of about 50?mm from the discharge site. Comparison with biased-probe data suggests that, under most conditions, the plasma leading edge was dominated by negative ions, with the apparent increase in velocity being due to fast H{sup ?} overtaking slower, heavier ions. In some cases, biased-probe data also showed abrupt discontinuities in the plasma energy distribution co-located with large changes in the intercepted plasma current, suggesting the presence of a shock in the leading edge of the expanding plasma.

Harris, J. R., E-mail: john.harris@colostate.edu [Department of Electrical and Computer Engineering, Colorado State University, Fort Collins, Colorado 80523 (United States)

2014-05-21T23:59:59.000Z

163

Expandable tubulars for use in geologic structures  

DOE Patents [OSTI]

An expandable tubular includes a plurality of leaves formed from sheet material that have curved surfaces. The leaves extend around a portion or fully around the diameter of the tubular structure. Some of the adjacent leaves of the tubular are coupled together. The tubular is compressed to a smaller diameter so that it can be inserted through previously deployed tubular assemblies. Once the tubular is properly positioned, it is deployed and coupled or not coupled to a previously deployed tubular assembly. The tubular is useful for all types of wells and boreholes.

Spray, Jeffery A.; Svedeman, Steven; Walter, David; Mckeighan, Peter; Siebanaler, Shane; Dewhurst, Peter; Hobson, Steven; Foss, Doug; Wirz, Holger; Sharpe, Aaron; Apostal, Michael

2014-08-12T23:59:59.000Z

164

The "ripples" on relativistically expanding fluid  

E-Print Network [OSTI]

Recent studies have shown that fluctuations of various types play important roles in the evolution of the fireball created in relativistic heavy ion collisions and bear many phenomenological consequences for experimental observables. The bulk dynamics of the fireball is well described by relativistic hydrodynamic expansion and the fluctuations on top of such expanding background can be studied within the linearized hydrodynamic framework. In this work we present complete and analytic sound wave solutions on top of both Bjorken flow and Hubble flow backgrounds. We also briefly discuss the applications of these solutions in heavy ion collisions.

Shuzhe Shi; Jinfeng Liao; Pengfei Zhuang

2015-01-06T23:59:59.000Z

165

Pseudo-Single-Bunch Expands Experimental Scope  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1 - SeptemberMicroneedlesAdvanced PhotonPseudo-Single-Bunch Expands Experimental Scope

166

Pseudo-Single-Bunch Expands Experimental Scope  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1 - SeptemberMicroneedlesAdvanced PhotonPseudo-Single-Bunch Expands Experimental

167

Pseudo-Single-Bunch Expands Experimental Scope  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1 - SeptemberMicroneedlesAdvanced PhotonPseudo-Single-Bunch Expands

168

SunShot Award Helps Solar Tracking Company Expand Internationally...  

Office of Environmental Management (EM)

SunShot Award Helps Solar Tracking Company Expand Internationally SunShot Award Helps Solar Tracking Company Expand Internationally October 30, 2014 - 5:46pm Addthis SunShot...

169

Energy Department Announces Up to $7 Million to Expand Clean...  

Energy Savers [EERE]

Energy Department Announces Up to 7 Million to Expand Clean Energy and Energy Efficiency on Tribal Lands Energy Department Announces Up to 7 Million to Expand Clean Energy and...

170

DOE Takes Next Steps to Expand Strategic Petroleum Reserve to...  

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

to Expand Strategic Petroleum Reserve to One Billion Barrels DOE Takes Next Steps to Expand Strategic Petroleum Reserve to One Billion Barrels December 8, 2006 - 9:34am Addthis...

171

Expanding Transformer Production for U.S. Market | Department...  

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

Expanding Transformer Production for U.S. Market Expanding Transformer Production for U.S. Market June 24, 2010 - 3:09pm Addthis Giant spools at Metglas' facility in Conway, S.C.,...

172

Nonlinear Gravitational Clustering in Expanding Universe  

E-Print Network [OSTI]

The gravitational clustering of collisionless particles in an expanding universe is modelled using some simple physical ideas. I show that it is possible to understand the nonlinear clustering in terms of three well defined regimes: (1) linear regime; (2) quasilinear regime which is dominated by scale-invariant radial infall and (3) nonlinear regime dominated by nonradial motions and mergers. Modelling each of these regimes separately I show how the nonlinear two point correlation function can be related to the linear correlation function in hierarchical models. This analysis leads to results which are in good agreement with numerical simulations thereby providing an explanation for numerical results. Using this model and some simple extensions, it is possible to understand the transfer of power from large to small scales and the behaviour of higher order correlation functions. The ideas presented here will also serve as a powerful analytical tool to investigate nonlinear clustering in different models.

T. Padmanabhan

1996-07-19T23:59:59.000Z

173

Heavy Duty Diesel Particulate Matter and Fuel Consumption Modeling for Transportation Analysis  

E-Print Network [OSTI]

Model for Heavy Duty Diesel Vehicles. TransportationAir Contaminant Emissions from Diesel- fueled Engines. Factfor Measuring Emissions from Diesel Engines. 1. Regulated

Scora, George Alexander

2011-01-01T23:59:59.000Z

174

Clean Cities' Guide to Alternative Fuel and Advanced Medium- and Heavy-Duty Vehicles (Brochure)  

SciTech Connect (OSTI)

Guide describes the alternative fuel and advanced medium- and heavy-duty vehicles available on the market, including buses, vans, refuse haulers, and more.

Not Available

2010-09-01T23:59:59.000Z

175

The Diesel Engine Powering Light-Duty Vehicles: Today and Tomorrow...  

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

Engine Emissions Reduction (DEER) Conference Presentation: Volkwagen AG, Wolfsburg, Germany 2004deerschindler.pdf More Documents & Publications Accelerating Light-Duty Diesel...

176

TECHNICAL NOTE HEAVY-DUTY DIESEL VEHICLE (HDDV) IDLING ACTIVITY AND  

E-Print Network [OSTI]

#12;#12;TECHNICAL NOTE HEAVY-DUTY DIESEL VEHICLE (HDDV) IDLING ACTIVITY AND EMISSIONS STUDY: PHASE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Current Diesel Idling Emissions Factors

177

Heavy-Duty NOx Emissions Control: Reformer-Assisted vs. Plasma...  

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

NOx Catalysis for Heavy-Duty Diesel Emissions Control Selective reduction of NOx in oxygen rich environments with plasma-assisted catalysis: Catalyst development and mechanistic...

178

Biodiesel Effects on the Operation of U.S. Light-Duty Tier 2...  

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

NOx Adsorber SCR System Summary and Conclusions Overview Evaluate the impact of Biodiesel fuel blends on the performance of advanced emission control systems for light-duty...

179

Biodiesel Effects on the Operation of U.S. Light Duty Tier 2...  

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

Test Results Summary and Conclusions Project Goals Evaluate the impact of Biodiesel fuel blends on the performance of advanced emission control systems for light-duty...

180

E-Print Network 3.0 - active duty army Sample Search Results  

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

Reserve 6 11 12 29 Coast Guard Active Active Duty 3 3 1 7 Coast Guard ... Source: New Hampshire, University of - Department of Electrical and Computer Engineering, Consolidated...

Note: This page contains sample records for the topic "duty roots expander" 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

High Efficiency Clean Combustion in Multi-Cylinder Light-Duty...  

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

Duty Engines (ACE 17) Presented by Robert Wagner 2009 DOE Hydrogen Program and Vehicle Technologies Annual Merit Review This presentation does not contain any proprietary,...

182

Heavy-Duty Low-Temperature and Diesel Combustion Research (8748...  

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

Model for Partially PremixedLow-Temperature Diesel Combustion Based onIn-Cylinder Laser Diagnostics and Chemical Kinetics Modeling Heavy-Duty Low-Temperature and Diesel...

183

Healthy Roots By: Shelly Van Landingham, Forester  

E-Print Network [OSTI]

. The following tips will help protect your trees' root systems: During planting, be sure to remove containers (plastic or otherwise), and wrapping (i.e. burlap, wire, string). However, this must be done without breaking the soil loose from the roots or breaking the roots. If containers are not removed

184

Root Growth and Yield of Differing Alfalfa Rooting Populations under Increasing Salinity and Zero Leaching  

E-Print Network [OSTI]

Root Growth and Yield of Differing Alfalfa Rooting Populations under Increasing Salinity and Zero of alfalfa under irrigation extended to 2.5 m (Dud- ley et al., 1994). It may be advantageous for deep-rootedAccumulation of salinity in the root zone can be detrimental to crops such as alfalfa to exploit the lower average

Smith, Steven E.

185

3M heavy duty roto peen: Baseline report; Summary  

SciTech Connect (OSTI)

The roto peen scaler allows for the selective removal of concrete substrates. The peen is a tungsten carbide shot brazed to a hardened steel rivet that is supported by a heavy duty flexible flap. The peens are coupled with a commercially available piece of equipment that is used to scabble or remove the concrete. The scabbled debris is then collected into 55 gallon drums by means of a vacuum system. The safety and health evaluation during the human factors assessment focused on two main areas: noise and dust.

NONE

1997-07-31T23:59:59.000Z

186

Light-Duty Reactivity Controlled Compression Ignition Drive Cycle Fuel  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-UpHeatMulti-Dimensionalthe10IO1OP001 LetterLight-Duty Lean GDI Vehicle TechnologyEconomy

187

Light-duty Diesels: Clean Enough? | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-UpHeatMulti-Dimensionalthe10IO1OP001 LetterLight-Duty Lean GDI Vehicle

188

Super Duty Diesel Truck with NOx Aftertreatment | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustion |Energy Usage »of Energy Strain Rate4 RecoveryJulyEvaluationOffi ce U.S.Super Duty Diesel

189

Heavy-Duty HCCI Development Activities | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-UpHeatMulti-Dimensional Subject:Ground Hawaii CleanHeat PumpDuty HCCI Development

190

Heavy-Duty Low Temperature Combustion Development Activities at Caterpillar  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-UpHeatMulti-Dimensional Subject:Ground Hawaii CleanHeat PumpDuty HCCI Development|

191

Heavy-Duty Vehicle Field Evaluations | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-UpHeatMulti-Dimensional Subject:Ground Hawaii CleanHeat PumpDutyEnergy 0Department

192

Hydrogen in the Heavy Duty Market? | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-UpHeatMulti-Dimensionalthe U.S. Department of Energy and the Federalas ain the Heavy Duty

193

DOE Light Duty Vehicle Workshop | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:Year in Review: Top FiveDepartmentfor06/2015)09 I. Steps Taken5ofLNGDevelopment » DOELight Duty

194

CX-007622: Categorical Exclusion Determination  

Broader source: Energy.gov [DOE]

Heavy Duty Roots Expander Heat Energy Recovery CX(s) Applied: A1, A9 Date: 01/04/2012 Location(s): Iowa Offices(s): National Energy Technology Laboratory

195

CX-007621: Categorical Exclusion Determination  

Broader source: Energy.gov [DOE]

Heavy Duty Roots Expander Heat Energy Recovery CX(s) Applied: B3.6 Date: 01/04/2012 Location(s): Michigan Offices(s): National Energy Technology Laboratory

196

CX-007619: Categorical Exclusion Determination  

Broader source: Energy.gov [DOE]

Heavy Duty Roots Expander Heat Energy Recovery CX(s) Applied: B3.6 Date: 01/04/2012 Location(s): Michigan Offices(s): National Energy Technology Laboratory

197

CX-007620: Categorical Exclusion Determination  

Broader source: Energy.gov [DOE]

Heavy Duty Roots Expander Heat Energy Recovery CX(s) Applied: B3.6 Date: 01/04/2012 Location(s): Michigan Offices(s): National Energy Technology Laboratory

198

Accelerated Lambda Iteration in Rapidly Expanding Envelopes  

E-Print Network [OSTI]

We discuss the current implementation of the ALI method into our HYDrodynamical RAdiation(HYDRA) code for rapidly expanding, low density envelopes commonly found in core collapse and thermonuclear supernovae, novae and WR stars. Due to the low densities, non-thermal excitation by high energy photons (e.g. by radioactive decays) and the time dependence of the problem, large departures from LTE are common throughout the envelope even at large optical depths. ALI is instrumental for both the coupling of the statistical equations and the hydrodynamical equations with the radiation transport (RT). We employ several concepts to improve the stability, and convergence rate/control including the concept of leading elements, the use of net rates, level locking, reconstruction of global photon redistribution functions, equivalent-2-level approach, and predictive corrector methods. For appropriate conditions, the solution of the time-dependent rate equations can be reduced to the time-independent problem plus an analytic solution of an ODE For the 3-D problem, we solve the radiation transport via the moment equations. To construct the Eddington tensor elements, we use a Monte Carlo scheme to determine the deviation of the solution of the RT equation from the diffusion approximation (ALI of second kind). At the example of a thermonuclear supernova (SN99by),we show an analysis of light light curves, flux and polarization spectra and discuss the limitations of our approach.

P. Hoeflich

2002-07-04T23:59:59.000Z

199

Helical Screw Expander Evaluation Project. Final report  

SciTech Connect (OSTI)

A functional 1-MW geothermal electric power plant that featured a helical screw expander was produced and then tested in Utah in 1978 to 1979 with a demonstrated average performance of approximately 45% machine efficiency over a wide range of test conditions in noncondensing operation on two-phase geothermal fluids. The Project also produced a computer-equipped data system, an instrumentation and control van, and a 1000-kW variable load bank, all integrated into a test array designed for operation at a variety of remote test sites. Additional testing was performed in Mexico in 1980 under a cooperative test program using the same test array, and machine efficiency was measured at 62% maximum with the rotors partially coated with scale, compared with approximately 54% maximum in Utah with uncoated rotors, confirming the importance of scale deposits within the machine on performance. Data are presented for the Utah testing and for the noncondensing phases of the testing in Mexico. Test time logged was 437 hours during the Utah tests and 1101 hours during the Mexico tests.

McKay, R.

1982-03-01T23:59:59.000Z

200

Energy Department Expands Gas Gouging Reporting System to Include...  

Office of Environmental Management (EM)

Washington, DC - Energy Secretary Samuel W. Bodman announced today that the Department of Energy has expanded its gas gouging reporting system to include a toll-free telephone...

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


201

Beyond Patient Health Escalating populations, expanding urban environments, poverty,  

E-Print Network [OSTI]

resistance, ozone depletion, asthma and heavy metal toxicity · The program also supports student and facultyBeyond Patient Health Escalating populations, expanding urban environments, poverty, pollution

Denham, Graham

202

Corporate Property Tax Reduction for New/Expanded Generating Facilities  

Broader source: Energy.gov [DOE]

Montana generating plants producing one megawatt (MW) or more with an alternative renewable energy source are eligible for the new or expanded industry property tax reduction. This incentive...

203

Expanded "Green Button" Will Reach Federal Agencies and More...  

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

"Green Button" Will Reach Federal Agencies and More American Energy Consumers Expanded "Green Button" Will Reach Federal Agencies and More American Energy Consumers December 6,...

204

Save Energy Now Assessment Helps Expand Energy Management Program...  

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

identify significant energy savings opportunities in their Dalton, Georgia, plant's steam system. Save Energy Now Assessment Helps Expand Energy Management Program at Shaw...

205

A Midwest Regional Inventory of Heavy-Duty Diesel Vehicle Emissions  

E-Print Network [OSTI]

A Midwest Regional Inventory of Heavy-Duty Diesel Vehicle Emissions by Christopher D. Dresser OF WISCONSIN - MADISON Abstract A Midwest Regional Inventory of Heavy-Duty Diesel Vehicle Emissions Christopher Studies This study presents a "bottom-up" emissions inventory for NOx, PM2.5, SO2, CO, and VOCs from heavy

Wisconsin at Madison, University of

206

ORNL/TM-2011/455 Large Scale Duty Cycle (LSDC) Project  

E-Print Network [OSTI]

ORNL/TM-2011/455 Large Scale Duty Cycle (LSDC) Project: Tractive Energy Analysis Methodology and Results from Long-Haul Truck Drive Cycle Evaluations May 2011 Prepared by Tim LaClair #12;#12;ORNL/TM-2011/455 Energy and Transportation Science Division LARGE SCALE DUTY CYCLE (LSDC) PROJECT: TRACTIVE ENERGY

207

ORNL/TM-2008/122 Class-8 Heavy Truck Duty Cycle  

E-Print Network [OSTI]

.............................................................................................2 1.1.2 Heavy Truck Long-Haul OperationsORNL/TM-2008/122 Class-8 Heavy Truck Duty Cycle Project Final Report December 2008 Prepared by Mary Government or any agency thereof. #12;ORNL/TM-2008/122 Vehicle Systems Program CLASS-8 HEAVY TRUCK DUTY CYCLE

208

Duty-Cycling Buildings Aggressively: The Next Frontier in HVAC Control  

E-Print Network [OSTI]

Duty-Cycling Buildings Aggressively: The Next Frontier in HVAC Control Yuvraj Agarwal, Bharathan the dominant energy consumer is the HVAC system. Despite this fact, in most buildings the HVAC system is run sensing to guide the operation of a building HVAC system. We show how we can enable aggressive duty

Simunic, Tajana

209

The Effects of Altitude on Heavy-Duty Diesel Truck On-Road  

E-Print Network [OSTI]

The Effects of Altitude on Heavy-Duty Diesel Truck On-Road Emissions G A R Y A . B I S H O P , * J oxide from 5772 heavy-duty diesel trucks at five locations in the United States and Europe show slightly health risk (2). These and other factors have brought new attention to diesel truck emissions. Because

Denver, University of

210

Department of Mechanical Engineering Fall 2011 Heavy Duty Diesel Engine Friction Reduction  

E-Print Network [OSTI]

PENNSTATE Department of Mechanical Engineering Fall 2011 Heavy Duty Diesel Engine Friction the friction losses of a heavy duty diesel engine. In addition, a tear down procedure needed to be created needs Discussed test cell configuration with Diesel Combustion & Emissions Laboratory Performed

Demirel, Melik C.

211

Measurement of Black Carbon and Particle Number Emission Factors from Individual Heavy-Duty Trucks  

E-Print Network [OSTI]

Measurement of Black Carbon and Particle Number Emission Factors from Individual Heavy-Duty Trucks of California, Dept. of Civil & Environmental Engineering, Berkeley, CA 94720-1710 Abstract Emission factors for black carbon (BC) and particle number (PN) were measured from 226 individual heavy-duty (HD) diesel

212

Self-similar expanding solutions for the planar network flow  

E-Print Network [OSTI]

Self-similar expanding solutions for the planar network flow Rafe Mazzeo Stanford University-similar expanding solutions of the cur- vature flow on planar networks where the initial configuration is any num generally, one might consider the flow by curvature for net- works of curves. Definition 1.1. A planar

Mazzeo, Rafe

213

Linear accelerator x-ray sources with high duty cycle  

SciTech Connect (OSTI)

X-ray cargo inspection systems typically use a several-MV pulsed linear accelerator (linac) to produce a bremsstrahlung spectrum of x rays by bombarding a target with electrons. The x rays traverse the cargo and are detected by a detector array. Spectroscopy of the detected x rays is very desirable: if one can determine the spectrum of the transmitted x rays, one can determine the Z of the material they traversed. Even in relatively low-dose modes of operation, thousands of x rays arrive at each detector element during each pulse, unless the x rays are heavily absorbed or scattered by the cargo. For portal or fixed-site systems, dose rates, and therefore x-ray count rates, are even higher. Because of the high x-ray count rate, spectroscopy is impractical in conventional cargo inspection systems, except in certain special cases. For a mobile system, typical pulse durations are a few microseconds, and the number of pulses is on the order of 100 per second, leading to a duty factor of about 0.04%. Clearly, a linear accelerator x-ray source with much higher duty factor would be useful, since then the same number of x rays could be spread out over time, reducing the x-ray count rate. In this paper, we explore the possibility of designing a linear accelerator system, using more or less Conventional Off the Shelf (COTS) components, capable of duty cycles of 1% or greater. A survey was conducted of available linac RF source options and, given the possibilities, calculations were performed for suitable beam centerline designs. Keeping in mind that the size and cost of the accelerator system should be practical for use in a mobile cargo inspection system, only a few options are shown to be reasonably feasible, both requiring the use of klystrons instead of the magnetrons used in conventional systems. An S-Band design appears clearly possible, and there is also a promising X-Band design.

Condron, Cathie; Brown, Craig; Gozani, Tsahi; Langeveld, Willem G. J. [Rapiscan Laboratories, Inc., 520 Almanor Ave. Sunnyvale, CA 94085 (United States); Hernandez, Michael [XScell corp., 2134 Old Middlefield Way, Mountain View, CA 94043 (United States)

2013-04-19T23:59:59.000Z

214

Transportable Heavy Duty Emissions Testing Laboratory and Research Program  

SciTech Connect (OSTI)

The objective of this program was to quantify the emissions from heavy-duty vehicles operating on alternative fuels or advanced fuel blends, often with novel engine technology or aftertreatment. In the first year of the program West Virginia University (WVU) researchers determined that a transportable chassis dynamometer emissions measurement approach was required so that fleets of trucks and buses did not need to be ferried across the nation to a fixed facility. A Transportable Heavy-Duty Vehicle Emissions Testing Laboratory (Translab) was designed, constructed and verified. This laboratory consisted of a chassis dynamometer semi-trailer and an analytic trailer housing a full scale exhaust dilution tunnel and sampling system which mimicked closely the system described in the Code of Federal Regulations for engine certification. The Translab was first used to quantify emissions from natural gas and methanol fueled transit buses, and a second Translab unit was constructed to satisfy research demand. Subsequent emissions measurement was performed on trucks and buses using ethanol, Fischer-Tropsch fuel, and biodiesel. A medium-duty chassis dynamometer was also designed and constructed to facilitate research on delivery vehicles in the 10,000 to 20,000lb range. The Translab participated in major programs to evaluate low-sulfur diesel in conjunction with passively regenerating exhaust particulate filtration technology, and substantial reductions in particulate matter were recorded. The researchers also participated in programs to evaluate emissions from advanced natural gas engines with closed loop feedback control. These natural gas engines showed substantially reduced levels of oxides of nitrogen. For all of the trucks and buses characterized, the levels of carbon monoxide, oxides of nitrogen, hydrocarbons, carbon dioxide and particulate matter were quantified, and in many cases non-regulated species such as aldehydes were also sampled. Particle size was also quantified during selected studies. A laboratory was established at WVU to provide for studies which supported and augmented the Translab research, and to provide for development of superior emissions measurement systems. This laboratory research focused on engine control and fuel sulfur issues. In recent years, as engine and aftertreatment technologies advanced, emissions levels were reduced such that they were at or below the Translab detectable limits, and in the same time frame the US Environmental Protection Agency required improved measurement methodologies for engine emissions certification. To remain current and relevant, the researchers designed a new Translab analytic system, housed in a container which can be transported on a semi-trailer. The new system's dilution tunnel flow was designed to use a subsonic venturi with closed loop control of blower speed, and the secondary dilution and particulate matter filter capture were designed to follow new EPA engine certification procedures. A further contribution of the program has been the development of techniques for creating heavy-duty vehicle test schedules, and the creation of schedules to mimic a variety of truck and bus vocations.

David Lyons

2008-03-31T23:59:59.000Z

215

Medium Duty ARRA Data Reporting and Analysis (Presentation)  

SciTech Connect (OSTI)

This project compiles medium-duty (MD) aggregated deployment data and provides the compiled detailed analyses to industry. The U.S. Department of Energy's (DOE's) American Recovery and Reinvestment Act (ARRA) deployment and demonstration projects are helping to commercialize technologies for all-electric vehicles, electrified accessories, and electric charging infrastructure. Over 3.2 million miles of in-service all-electric MD truck data from 560 different vehicles have been collected since 2011, and usage data from over 1,000 truck electrification sites have been collected since 2013. Through the DOE's Vehicle Technologies Office, NREL is working to analyze real-time data from these deployment and demonstration projects to quantify the benefits: results and summary statistics are made available through the NREL website as quarterly and annual reports; 23 aggregated reports have been published on the performance and operation of these vehicles; and detailed data are being extracted to help further understand battery use and performance.

Walkowicz, K.

2014-06-01T23:59:59.000Z

216

Modular high temperature gas-cooled reactor plant design duty cycle. Revision 3  

SciTech Connect (OSTI)

This document defines the Plant Design Duty Cycle (PCDC) for the Modular High Temperature Gas-cooled Reactor (MHTGR). The duty cycle is a set of events and their design number of occurrences over the life of the plant for which the MHTGR plant shall be designed to ensure that the plant meets all the top-level requirements. The duty cycle is representative of the types of events to be expected in multiple reactor module-turbine plant configurations of the MHTGR. A synopsis of each PDDC event is presented to provide an overview of the plant response and consequence. 8 refs., 1 fig., 4 tabs.

Chan, T.

1989-12-31T23:59:59.000Z

217

ROOT CAUSE ANALYSIS PROGRAM MANUAL  

SciTech Connect (OSTI)

Root Cause Analysis (RCA) identifies the cause of an adverse condition that, if corrected, will preclude recurrence or greatly reduce the probability of recurrence of the same or similar adverse conditions and thereby protect the health and safety of the public, the workers, and the environment. This procedure sets forth the requirements for management determination and the selection of RCA methods and implementation of RCAs that are a result of significant findings from Price-Anderson Amendments Act (PAAA) violations, occurrences/events, Significant Adverse Conditions, and external oversight Corrective Action Requests (CARs) generated by the Office of Enforcement (PAAA headquarters), the U.S. Environmental Protection Agency, and other oversight entities against Lawrence Berkeley National Laboratory (LBNL). Performance of an RCA may result in the identification of issues that should be reported in accordance with the Issues Management Program Manual.

Gravois, Melanie C.

2007-05-02T23:59:59.000Z

218

Nitrogen expander cycles for large capacity liquefaction of natural gas  

SciTech Connect (OSTI)

Thermodynamic study is performed on nitrogen expander cycles for large capacity liquefaction of natural gas. In order to substantially increase the capacity, a Brayton refrigeration cycle with nitrogen expander was recently added to the cold end of the reputable propane pre-cooled mixed-refrigerant (C3-MR) process. Similar modifications with a nitrogen expander cycle are extensively investigated on a variety of cycle configurations. The existing and modified cycles are simulated with commercial process software (Aspen HYSYS) based on selected specifications. The results are compared in terms of thermodynamic efficiency, liquefaction capacity, and estimated size of heat exchangers. The combination of C3-MR with partial regeneration and pre-cooling of nitrogen expander cycle is recommended to have a great potential for high efficiency and large capacity.

Chang, Ho-Myung; Park, Jae Hoon; Gwak, Kyung Hyun [Hong Ik University, Department of Mechanical Engineering, Seoul, 121-791 (Korea, Republic of); Choe, Kun Hyung [Korea Gas Corporation, Incheon, 406-130 (Korea, Republic of)

2014-01-29T23:59:59.000Z

219

Emerging information technology and the expanding role of technical communicators  

E-Print Network [OSTI]

Emerging information technology is expanding the role of technical communicators. Functionality present in software tools contributes to a re-definition of what tasks technical communicators currently perform and how they will use object management...

McGuire, Richard Charles

1996-01-01T23:59:59.000Z

220

Environmental assessment, expanded Ponnequin wind energy project, Weld County, Colorado  

SciTech Connect (OSTI)

The US Department of Energy (DOE) has considered a proposal from the State of Colorado, Office of Energy Conservation (OEC), for funding construction of the Expanded Ponnequin Wind Project in Weld County, Colorado. OEC plans to enter into a contracting arrangement with Public Service Company of Colorado (PSCo) for the completion of these activities. PSCo, along with its subcontractors and business partners, are jointly developing the Expanded Ponnequin Wind Project. The purpose of this Final Environmental Assessment (EA) is to provide DOE and the public with information on potential environmental impacts associated with the Expanded Ponnequin Wind Energy Project. This EA, and public comments received on it, were used in DOE`s deliberations on whether to release funding for the expanded project under the Commercialization Ventures Program.

NONE

1999-02-01T23:59:59.000Z

Note: This page contains sample records for the topic "duty roots expander" 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

Expandable house : for disaster relief and flexible dwelling  

E-Print Network [OSTI]

In March 2011, a devastating earthquake and tsunami struck northern Japan. In addition to the lives lost, thousands of people were dislocated, resulting in an urgent need for housing. My approach is to design the Expandable ...

Chu, Mimi Ho

2012-01-01T23:59:59.000Z

222

Enabling and Expanding HCCI in PFI Gasoline Engines with High...  

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

Enabling and Expanding HCCI in PFI Gasoline Engines with High EGR and Spark Assist Robert M. Wagner, K. Dean Edwards, C. Stuart Daw, Johney B. Green Jr., Bruce G. Bunting Fuels,...

223

Exponential cosmological redshift in a linearly expanding universe  

E-Print Network [OSTI]

Analytical solution of the Maxwell equations in a flat expanding Friedmann-Robertson-Walker space-time is presented. The solution is valid for arbitrary sources and for expansion rates described by positive functions of time. The near-, intermediate-, and far-field terms are explicitly identified. It is shown that the cosmological redshift introduced by a linearly expanding space-time is an exponential function of the distance factor.

Budko, Neil V

2009-01-01T23:59:59.000Z

224

Is space expanding in the Friedmann universe models?  

E-Print Network [OSTI]

The interpretation of the expanding universe as an expansion of space has recently been challenged. From the geodesic equation in Friedmann universe models and the empty Milne model, we argue that a Newtonian or special relativistic analysis is not applicable on large scales, and the general relativistic interpretation in terms of expanding space has the advantage of being globally consistent. We also show that the cosmic redshift, interpreted as an expansion effect, containts both the Doppler effect and the gravitational frequency shift.

Oyvind Gron; Oystein Elgaroy

2006-09-18T23:59:59.000Z

225

Renewable Energy, Nuclear Power and Galileo: Do Scientists Have a Duty to Expose Popular Misconceptions?  

E-Print Network [OSTI]

1 OPINION Renewable Energy, Nuclear Power and Galileo: Do Scientists Have a Duty to Expose Popular misconception discussed below concerns the fallacy that renewable energy is rapidly supplanting conventional energy. Total non-hydro renewables today offset o

Hansen, James E.

226

Effects of Catalysts on Emissions from Heavy-Duty Diesel Retrofits...  

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

9 Directions in Engine-Efficiency and Emissions Research (DEER) Conference Dearborn, Michigan, August 3-6, 2009 Effects of Catalysts on Emissions from Heavy-Duty Diesel Retrofits...

227

Heavy-duty truck population, activity and usage patterns. Final report  

SciTech Connect (OSTI)

The objective of the study was to update the heavy-duty truck (HDT) population, activity (e.g., vehicle miles traveled (VMT), numbers of starts and trips, trip duration, etc.), and usage patterns type of service/business (e.g., delivery, construction, etc.), area of operation (i.e., local, short-haul, long-haul) for HDT`s registered and/or operated in California. The population and activity estimates were done on a weight-class-specific basis light-heavy-duty, medium-heavy-duty and heavy-heavy-duty. Population, activity and usage estimates were based primarily on Department of Motor Vehicles (DMV) registration data and Truck Inventory and Usage Survey (TIUS) data. In addition to the analysis of existing data (i.e., DMV and TIUS), 42 HDTs were fitted with on-board data loggers that recorded numbers of trips and starts, daily VMT and travel by time-of-day.

Fischer, M.

1998-07-01T23:59:59.000Z

228

Quadruped Bounding Control with Variable Duty Cycle via Vertical Impulse Scaling  

E-Print Network [OSTI]

This paper introduces a bounding gait control algorithm that allows a successful implementation of duty cycle modulation in the MIT Cheetah 2. Instead of controlling leg stiffness to emulate a ‘springy leg’ inspired from ...

Park, Hae won

229

Light-Duty Diesel EngineTechnology to Meet Future Emissions and...  

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

to Meet Future Emissions and Performance Requirements of the U.S. Market Light-Duty Diesel EngineTechnology to Meet Future Emissions and Performance Requirements of the U.S....

230

The Diesel Engine Powering Light-Duty Vehicles: Today and Tomorrow  

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

diesel-powered light-duty vehicles 1990 1995 2000 2005 2010 2015 2020 2025 Energy Greenhouse effect CO 2 Exhaust gas emissions CO, NO x , HC, PM Importance Environmental driving...

231

Myths Regarding Alternative Fuel Vehicle Demand by Light-Duty Vehicle Fleets  

E-Print Network [OSTI]

MythsRegarding Alternative Fuel Vehicte Demand Light-Dutyregulation Myths Regarding Alternative Fuel Vehicle DemandBy00006-6 MYTHS REGARDING ALTERNATIVE FUEL VEHICLE LIGHT-DUTY

Nesbitt, Kevin; Sperling, Daniel

1998-01-01T23:59:59.000Z

232

Variable Charge Motion for 2007-2010 Heavy Duty Diesel Engines  

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

ID-NR.12345-1 Variable Charge Motion for 2007-2010 Heavy Duty Diesel Engines Deer Conference 2003 Presented by Josef Maier AVL Powertrain Engineering ID-NR.12345-2 Overview of...

233

Emissions Benefits From Renewable Fuels and Other Alternatives for Heavy-Duty Vehicles  

E-Print Network [OSTI]

43 McCormick, 2005 (Canola-1) McCormick,2005 (Soy-1)A: Animal-based; C: Canola; S: Soy-based; H-D: Heavy-Duty H-

Hajbabaei, Maryam

2013-01-01T23:59:59.000Z

234

Emissions from Heavy-Duty Diesel Engine with EGR using Oil Sands...  

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

Research Council Canada Ottawa, Ontario, Canada Emissions from Heavy-Duty Diesel Engine with EGR using Oil Sands Derived Fuels W. Stuart Neill 9 th DEER Conference, Newport, Rhode...

235

Emissions comparison between petroleum diesel and biodiesel in a medium-duty diesel engine  

E-Print Network [OSTI]

EMISSIONS COMPARISON BETWEEN PETROLEUM DIESEL AND BIODIESEL IN A MEDIUM-DUTY DIESEL ENGINE A Thesis by BRANDON T. TOMPKINS Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment... of the requirements for the degree of MASTER OF SCIENCE December 2008 Major Subject: Mechanical Engineering EMISSIONS COMPARISON BETWEEN PETROLEUM DIESEL AND BIODIESEL IN A MEDIUM-DUTY DIESEL ENGINE A Thesis by BRANDON T...

Tompkins, Brandon T.

2009-05-15T23:59:59.000Z

236

The organization, powers, and duties of the county commissioners' court in Texas  

E-Print Network [OSTI]

THE ORGANIZATION, POWERS, AND DUTIES OF THE COUNTY COMMISSIONERS' COURT IN TEXAS A Thesis GERALD LEE DAUGHETY Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirement for the degree of MASTER OF ARTS... May 1973 Major Subject: POLITICAL SCIENCE THE ORGANIZATION& POWERS, AND DUTIES OF THE COUNTY COMMISSIONFRS ' COURT IN TEXAS A Thesis by GERALD LEE DAUGHETY Approved s to style and content by: (Chairma of Committee) Qdd P. dRu (Head...

Daughety, Gerald Lee

1973-01-01T23:59:59.000Z

237

arabidopsis root growth: Topics by E-print Network  

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

affecting the direction of growth of tree roots M.P. Coutts Forestry Commission, Northern of the main roots of a tree is an important determinant of the form of the root...

238

Fumigation of alcohol in a light duty automotive diesel engine  

SciTech Connect (OSTI)

A light-duty automotive diesel engine was fumigated with methanol and ethanol in amounts up to 35% and 50% of the total fuel energy respectively. The main purpose of this study was to determine the effect of alcohol (methanol and ethanol) fumigation on engine performance at various operating conditions. Engine fuel efficiency, emissions, smoke, and the occurrence of severe knock were the parameters used to evaluate performance. Raw exhaust particulate and its soluble organic extract were screened for biological activity using the Ames Salmonella typhimurium assay. Results are given for a test matrix made up of twelve steady-state operating conditions. For all conditions except the 1/4 rack (light load) condition, modest thermal efficiency gains were noted upon ethanol fumigation. Methanol showed the same increase at 3/4 and full rack (high load) conditions. However, engine roughness or the occurrence of severe knock limited the maximum amount of alcohol that could be fumigated. Brake specific NO/sub x/ concentrations were found to decrease for all ethanol conditions tested. Oxides of nitrogen emissions, on a volume basis, decreased for all alcohol conditions tested. Based on the limited particulate data analyzed, it appears as though ethanol fumigation, like methanol fumigation, while lowering the mass of particulate emitted, does enhance the biological activity of that particulate.

Broukhiyan, E.M.H.; Lestz, S.S.

1981-08-01T23:59:59.000Z

239

Tree roots and their microbial partners may provide answers to...  

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

865.576.1946 Tree roots and their microbial partners may provide answers to productivity Researchers investigate cottonwood poplars in Tennessee to understand plant root...

240

Root Cause Analysis (RCA) & Corrective Action Plan (CAP) | Department...  

Energy Savers [EERE]

Root Cause Analysis (RCA) & Corrective Action Plan (CAP) Root Cause Analysis (RCA) & Corrective Action Plan (CAP) Improving the Department of Energy's project and contract...

Note: This page contains sample records for the topic "duty roots expander" 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

SunLine Expands Horizons with Fuel Cell Bus Demo. Hydrogen, Fuel...  

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

Expands Horizons with Fuel Cell Bus Demo. Hydrogen, Fuel Cells & Infrastructure Technologies Program, Fuel Cell Bus Demonstration Projects (Fact Sheet). SunLine Expands Horizons...

242

Cotton Root-Rot and Its Control.  

E-Print Network [OSTI]

: Nurseryman E. MORTENSEN, B. S., Superintendent No. 9, Balmorhea, Reeves County: L. R. HAWTHORN, M. S., Horficulfurist J. J. BAYLES, B. S., Superintendenf No. 20, . Superintendent . . Teachers in the School of Agriculture Carrying Cooperative Projects..., apparently from lack Fig. 2. Cotton plants with Phymatotrichum root-rot, showing dead, recently wilted. and healthy plants. of water. By the end of three weeks, most of the inoculated plants had succumbed. In the rotting of the roots,'the outer tissues...

Taubenhaus, J. J. (Jacob Joseph); Ezekiel, (Walter Naphtali) Walter N.

1931-01-01T23:59:59.000Z

243

Demonstrating and evaluating heavy-duty alternative fuel operations  

SciTech Connect (OSTI)

The principal objectives of this project was to understand the effects of using an alternative fuel on a truck operating fleet through actual operation of trucks. Information to be gathered was expected to be anecdotal, as opposed to statistically viable, because the Trucking Research institute (TRI) recognized that projects could not attract enough trucks to produce statistically credible volumes of data. TRI was to collect operational data, and provide them to NREL, who would enter the data into the alternative fuels database being constructed for heavy-duty trucks at the time. NREL would also perform data analysis, with the understanding that the demonstrations were generally pre-production model engines and vehicles. Other objectives included providing information to the trucking industry on the availability of alternative fuels, developing the alternative fuels marketplace, and providing information on experience with alternative fuels. In addition to providing information to the trucking industry, an objective was for TRI to inform NREL and DOE about the industry, and give feedback on the response of the industry to developments in alternative fuels in trucking. At the outset, only small numbers of vehicles participated in most of the projects. Therefore, they had to be considered demonstrations of feasibility, rather than data gathering tests from which statistically significant conclusions might be drawn. Consequently, data gathered were expected to be useful for making estimates and obtaining valuable practical lessons. Project data and lessons learned are the subjects of separate project reports. This report concerns itself with the work of TRI in meeting the overall objectives of the TRI-NREL partnership.

Peerenboom, W. [Trucking Research Inst., Alexandria, VA (United States)] [Trucking Research Inst., Alexandria, VA (United States)

1998-02-01T23:59:59.000Z

244

Supercritical Carbon Dioxide Turbo-Expander and Heat Exchangers  

Broader source: Energy.gov [DOE]

This fact sheet describes a supercritical carbon dioxide turbo-expander and heat exchangers project awarded under the DOE's 2012 SunShot Concentrating Solar Power R&D award program. The team, led by the Southwest Research Institute, is working to develop a megawatt-scale s-CO2 hot-gas turbo-expander optimized for the highly transient solar power plant profile. The team is also working to optimize novel printed circuit heat exchangers for s-CO2 applications to drastically reduce their manufacturing costs.

245

On the Sackur-Tetrode equation in an expanding universe  

E-Print Network [OSTI]

In this work we investigate the thermodynamic properties satisfied by an expanding universe filled with a monoatomic ideal gas. We show that the equations for the energy density, entropy density and chemical potential remain the same of an ideal gas confined to a constant volume V . In particular the Sackur-Tetrode equation for the entropy of the ideal gas is also valid in the case of an expanding universe, provided that the constant value that represents the current entropy of the universe is appropriately chosen.

S. H. Pereira

2011-10-07T23:59:59.000Z

246

ORIGINAL PAPER Does wild boar rooting affect livestock grazing areas  

E-Print Network [OSTI]

ORIGINAL PAPER Does wild boar rooting affect livestock grazing areas in alpine grasslands? C the summer rangelands in the Spanish Central Pyrenees, where rooting by wild boar (Sus scrofa) is a large dis impact of wild boar rooting on Pyrenean grasslands. It quantified the extent of wild boar rooting

Paris-Sud XI, Université de

247

Diuse interface surface tension models in an expanding ow  

E-Print Network [OSTI]

Diuse interface surface tension models in an expanding ow Wangyi Liu, Andrea L. Bertozzi , and Theodore Kolokolnikov November 22, 2010 Abstract We consider a diusive interface surface tension model principle. 1 Background There is a need to develop simple computational models for surface tension

Soatto, Stefano

248

Meta-Design: Expanding Boundaries and Redistributing Control in Design  

E-Print Network [OSTI]

Meta-Design: Expanding Boundaries and Redistributing Control in Design Gerhard Fischer Center for Lifelong Learning and Design University of Colorado, Boulder http://l3d.cs.colorado.edu/~gerhard/ Abstract. Meta-design is an emerging conceptual framework aimed at defining and creating socio

Fischer, Gerhard

249

Farmer's Market, Demonstration Gardens, and Research Projects Expand Outreach  

E-Print Network [OSTI]

Farmer's Market, Demonstration Gardens, and Research Projects Expand Outreach of Extension Master. A workshop format was used at the Annual Conference of the American Society for Horticultural Science on 31 volunteer outreach, leading to increased extension effectiveness. One program leader described how EMGs

250

AcuTemp Expands as Appliances Become More Energy Efficient  

Office of Energy Efficiency and Renewable Energy (EERE)

AcuTemp, a small U.S. company that manufactures vacuum insulation panels that are needed to maintain precise temperatures for cold-storage products, is expanding and creating jobs in Dayton, OH thanks in part to the Recovery Act.

251

APPROXIMATE HAMILTON DECOMPOSITIONS OF ROBUSTLY EXPANDING REGULAR DIGRAPHS  

E-Print Network [OSTI]

APPROXIMATE HAMILTON DECOMPOSITIONS OF ROBUSTLY EXPANDING REGULAR DIGRAPHS DERYK OSTHUS and is a robust outexpander has an approximate decomposition into edge-disjoint Hamilton cycles, i.e. G contains a set of r -o(r) edge-disjoint Hamilton cycles. Here G is a robust outexpander if for every set S which

Osthus, Deryk

252

Hamilton cycles in highly connected and expanding Dan Hefetz  

E-Print Network [OSTI]

Hamilton cycles in highly connected and expanding graphs Dan Hefetz Michael Krivelevich Tibor of a Hamilton cycle, which is applicable to a wide variety of graphs, including relatively sparse graphs A Hamilton cycle in a graph G is a cycle passing through all vertices of G. A graph is called Hamiltonian

Krivelevich, Michael

253

The Energy and Economic Impacts of Expanding International Emissions Trading  

E-Print Network [OSTI]

The Energy and Economic Impacts of Expanding International Emissions Trading Tianyu Qi, Niven Trading Tianyu Qi* , Niven Winchester , Valerie J. Karplus and Xiliang Zhang Abstract Emissions trading of the European Union's Emissions Trading System with a new system in Australia in 2015, this paper simulates

254

Safety equipment list for the light duty utility arm system  

SciTech Connect (OSTI)

The initial issue (Revision 0) of this Safety Equipment List (SEL) for the Light Duty Utility Arm (LDUA) requires an explanation for both its existence and its being what it is. All LDUA documentation leading up to creation of this SEL, and the SEL itself, is predicated on the LDUA only being approved for use in waste tanks designated as Facility Group 3, i.e., it is not approved for use in Facility Group 1 or 2 waste tanks. Facility Group 3 tanks are those in which a spontaneous or induced hydrogen gas release would be small, localized, and would not exceed 25% of the LFL when mixed with the remaining air volume in the dome space; exceeding these parameters is considered unlikely. Thus, from a NFPA flammable gas environment perspective the waste tank interior is not classified as a hazardous location. Furthermore, a hazards identification and evaluation (HNF-SD-WM-HIE-010, REV 0) performed for the LDUA system concluded that the consequences of actual LDUA system postulated accidents in Flammable Gas Facility Group 3 waste tanks would have either NO IMPACT or LOW IMPACT on the offsite public and onsite worker. Therefore, from a flammable gas perspective, there is not a rationale for classifying any of SSCs associated with the LDUA as either Safety Class (SC) or Safety Significant (SS) SSCs, which, by default, categorizes them as General Service (GS) SSCs. It follows then, based on current PHMC procedures (HNF-PRO-704 and HNF-IP-0842, Vol IV, Section 5.2) for SEL creation and content, and from a flammable gas perspective, that an SEL is NOT REQ@D HOWEVER!!! There is both a precedent and a prudency to capture all SSCS, which although GS, contribute to a Defense-In-Depth (DID) approach to the design and use of equipment in potentially flammable gas environments. This Revision 0 of the LDUA SEL has been created to capture these SSCs and they are designated as GS-DID in this document. The specific reasons for doing this are listed.

Barnes, G.A.

1998-03-02T23:59:59.000Z

255

Fuel Economy Improvement Potential of a Heavy Duty Truck using V2x Communication  

SciTech Connect (OSTI)

In this paper, we introduce an intelligent driver assistance system to reduce fuel consumption in heavy duty vehicles irrespective of the driving style of the driver. We specifically study the potential of V2I and V2V communications to reduce fuel consumption in heavy duty trucks. Most ITS communications today are oriented towards vehicle safety, with communications strategies and hardware that tend to focus on low latency. This has resulted in technologies emerging with a relatively limited range for the communications. For fuel economy, it is expected that most benefits will be derived with greater communications distances, at the scale of many hundred meters or several kilometers, due to the large inertia of heavy duty vehicles. It may therefore be necessary to employ different communications strategies for ITS applications aimed at fuel economy and other environmental benefits than what is used for safety applications in order to achieve the greatest benefits.

LaClair, Tim J [ORNL; Verma, Rajeev [Eaton Corporation; Norris, Sarah [Eaton Corporation; Cochran, Robert [Eaton Corporation

2014-01-01T23:59:59.000Z

256

Transportation Energy Futures Series: Potential for Energy Efficiency Improvement Beyond the Light-Duty-Vehicle Sector  

SciTech Connect (OSTI)

Considerable research has focused on energy efficiency and fuel substitution options for light-duty vehicles, while much less attention has been given to medium- and heavy-duty trucks, buses, aircraft, marine vessels, trains, pipeline, and off-road equipment. This report brings together the salient findings from an extensive review of literature on future energy efficiency options for these non-light-duty modes. Projected activity increases to 2050 are combined with forecasts of overall fuel efficiency improvement potential to estimate the future total petroleum and greenhouse gas (GHG) emissions relative to current levels. This is one of a series of reports produced as a result of the Transportation Energy Futures (TEF) project, a Department of Energy-sponsored multi-agency project initiated to pinpoint underexplored strategies for abating GHGs and reducing petroleum dependence related to transportation.

Vyas, A. D.; Patel, D. M.; Bertram, K. M.

2013-03-01T23:59:59.000Z

257

Clean Cities Guide to Alternative Fuel and Advanced Medium- and Heavy-Duty Vehicles (Book)  

SciTech Connect (OSTI)

Today's fleets are increasingly interested in medium-duty and heavy-duty vehicles that use alternative fuels or advanced technologies that can help reduce operating costs, meet emissions requirements, improve fleet sustainability, and support U.S. energy independence. Vehicle and engine manufacturers are responding to this interest with a wide range of options across a steadily growing number of vehicle applications. This guide provides an overview of alternative fuel power systems?including engines, microturbines, electric motors, and fuel cells?and hybrid propulsion systems. The guide also offers a list of individual medium- and heavy-duty vehicle models listed by application, along with associated manufacturer contact information, fuel type(s), power source(s), and related information.

Not Available

2013-08-01T23:59:59.000Z

258

California Greenhouse Gas Emissions Standards for Light-Duty Vehicles (Update) (released in AEO2006)  

Reports and Publications (EIA)

The state of California was given authority under the Clean Air Act Amendments of 1990 (CAAA90) to set emissions standards for light-duty vehicles that exceed federal standards. In addition, other states that do not comply with the National Ambient Air Quality Standards (NAAQS) set by the Environmental Protection Agency under CAAA90 were given the option to adopt Californias light-duty vehicle emissions standards in order to achieve air quality compliance. CAAA90 specifically identifies hydrocarbon, carbon monoxide, and NOx as vehicle-related air pollutants that can be regulated. California has led the nation in developing stricter vehicle emissions standards, and other states have adopted the California standards.

2006-01-01T23:59:59.000Z

259

Fuel Economy of the Light-Duty Vehicle Fleet (released in AEO2005)  

Reports and Publications (EIA)

The U.S. fleet of light-duty vehicles consists of cars and light trucks, including minivans, sport utility vehicles (SUVs) and trucks with gross vehicle weight less than 8,500 pounds. The fuel economy of light-duty vehicles is regulated by the (Corporate Average Fuel Economy) CAFE standards set by the National Highway Traffic Safety Administration. Currently, the CAFE standard is 27.5 miles per gallon (mpg) for cars and 20.7 mpg for light trucks. The most recent increase in the CAFE standard for cars was in 1990, and the most recent increase in the CAFE standard for light trucks was in 1996.

2005-01-01T23:59:59.000Z

260

Fitness for duty in the nuclear power industry: Responses to implementation questions  

SciTech Connect (OSTI)

The Nuclear Regulatory Commission published a rule concerning fitness for duty of commercial nuclear power plant workers. This report responds to questions raised concerning the implementation of the rule during the Edison Electric Institute's Fitness-for-Duty Rule Implementation Workshop.'' It also responds to questions raised by licensees with the staff outside the workshop. Publication of this report does not constitute a written interpretation of the meaning of the rule. Only written interpretations by the General Counsel will be recognized to be binding upon the Commission.

Bush, L.L.; Grimes, B.K.

1989-10-01T23:59:59.000Z

Note: This page contains sample records for the topic "duty roots expander" 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

Heavy-duty H2-Diesel Dual Fuel Engines | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-UpHeatMulti-Dimensional Subject:Ground Hawaii CleanHeat PumpDutyEnergyduty H2-Diesel

262

Effects of a Zeolite-Selective Catalytic Reduction System on Comprehensive Emissions from a Heavy-Duty Diesel Engine  

E-Print Network [OSTI]

-Duty Diesel Engine Z. Gerald Liu and Devin R. Berg Cummins Emission Solutions, Stoughton, WI James J. Schauer spec- trum of chemical species from diesel engine emissions were investigated in this study with established procedures and com- pared between the measurements taken from a baseline heavy-duty diesel engine

Wu, Mingshen

263

This description is intended to indicate the kinds of tasks and levels of work that will be required of positions assigned to this classification and shall not be held to exclude other related duties which are not mentioned.  

E-Print Network [OSTI]

, or assists with routine radio and television programming functions; stocks merchandise or supplies, issues gardening or other landscape duties, lifts and moves equipment and supplies; performs maintenance duties

264

Expanded beam non-imaging fiber optic connector  

DOE Patents [OSTI]

There is disclosed an expanded beam fiber to fiber connector, based on non-imaging optic principles for coupling light beams from one optical fiber to another. The system consists of two identical connector parts, referred to herein as a collimating part and a concentrating part, each having a preferred partially curved reflective boundary surface for minimizing power loss and surrounding either a hollow space or a space filled with a uniform transparent medium. In one embodiment the boundary is metallic while in a second embodiment the boundary is in the form of an interface allowing total internal reflection. In both the hollow and filled case a lens may be located at the expanded end of both the collimater part and the concentrator part forming the connector. The connector is preferably located in a housing in order to protect and preserve the mechanical stability of the coupler.

Jannson, Tommasz (Redondo Beach, CA); Jannson, Joanna (Redondo Beach, CA); Yeung, Peter (Redondo Beach, CA)

1990-01-01T23:59:59.000Z

265

Expanded beam non-imaging fiber optic connector  

DOE Patents [OSTI]

There is disclosed an expanded beam fiber to fiber connector, based on non-imaging optic principles for coupling light beams from one optical fiber to another. The system consists of two identical connector parts, referred to herein as a collimating part and a concentrating part, each having a preferred partially curved reflective boundary surface for minimizing power loss and surrounding either a hollow space or a space filled with a uniform transparent medium. In one embodiment the boundary is metallic while in a second embodiment the boundary is in the form of an interface allowing total internal reflection. In both the hollow and filled case a lens may be located at the expanded end of both the collimator part and the concentrator part forming the connector. The connector is preferably located in a housing in order to protect and preserve the mechanical stability of the coupler. 13 figs.

Jannson, T.; Jannson, J.; Yeung, P.

1990-02-06T23:59:59.000Z

266

Expanded Use of Bicyclic Guanidinate Ligands in Dimetal Paddlewheel Compounds  

E-Print Network [OSTI]

EXPANDED USE OF BICYCLIC GUANIDINATE LIGANDS IN DIMETAL PADDLEWHEEL COMPOUNDS A Dissertation by MARK DAVID YOUNG Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements... of Texas A&M University in partial fulfillment of the requirements for the degree of DOCTOR OF PHILOSOPHY Approved by: Co-Chairs of Committee, Carlos A. Murillo Marcetta Y. Darensbourg Committee Members, Paul A. Lindahl George Kattawar Head...

Young, Mark D.

2010-01-16T23:59:59.000Z

267

Development of Self-Expanding Idealflo (tm) Sandcontrol Technology  

SciTech Connect (OSTI)

Development of Self-Expanding Idealflo{trademark} Sandscreen Technology was a successfully executed design-by-analysis through field demonstration project. This final report is presented as a two-part progression of concept development and manufacturing activities. The first part, conceptual development activities, discusses novel specifications creation and non-linear analytical design generation. The second part, manufacturing, contains achievement related information for detailed-design, fabrication, mechanical testing, and field demonstration activities.

Jeff A. Spray

2007-09-30T23:59:59.000Z

268

Better Buildings Challenge Expands to Multifamily Housing | Department of  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:Year in Review: Top Five EEREDepartment ofEnergyEnergy Better Buildings Challenge Expands

269

Focusing of geodesic congruences in an accelerated expanding Universe  

E-Print Network [OSTI]

We study the accelerated expansion of the Universe through its consequences on a congruence of geodesics. We make use of the Raychaudhuri equation which describes the evolution of the expansion rate for a congruence of timelike or null geodesics. In particular, we focus on the space-time geometry contribution to this equation. By straightforward calculation from the metric of a Robertson-Walker cosmological model, it follows that in an accelerated expanding Universe the space-time contribution to the Raychaudhuri equation is positive for the fundamental congruence, favoring a non-focusing of the congruence of geodesics. However, the accelerated expansion of the present Universe does not imply a tendency of the fundamental congruence to diverge. It is shown that this is in fact the case for certain congruences of timelike geodesics without vorticity. Therefore, the focusing of geodesics remains feasible in an accelerated expanding Universe. Furthermore, a negative contribution to the Raychaudhuri equation from space-time geometry which is usually interpreted as the manifestation of the attractive character of gravity is restored in an accelerated expanding Robertson-Walker space-time at high speeds.

F. D. Albareti; J. A. R. Cembranos; A. de la Cruz-Dombriz

2013-01-08T23:59:59.000Z

270

Focusing of geodesic congruences in an accelerated expanding Universe  

SciTech Connect (OSTI)

We study the accelerated expansion of the Universe through its consequences on a congruence of geodesics. We make use of the Raychaudhuri equation which describes the evolution of the expansion rate for a congruence of timelike or null geodesics. In particular, we focus on the space-time geometry contribution to this equation. By straightforward calculation from the metric of a Robertson-Walker cosmological model, it follows that in an accelerated expanding Universe the space-time contribution to the Raychaudhuri equation is positive for the fundamental congruence, favoring a non-focusing of the congruence of geodesics. However, the accelerated expansion of the present Universe does not imply a tendency of the fundamental congruence to diverge. It is shown that this is in fact the case for certain congruences of timelike geodesics without vorticity. Therefore, the focusing of geodesics remains feasible in an accelerated expanding Universe. Furthermore, a negative contribution to the Raychaudhuri equation from space-time geometry which is usually interpreted as the manifestation of the attractive character of gravity is restored in an accelerated expanding Robertson-Walker space-time at high speeds.

Albareti, F.D.; Cembranos, J.A.R. [Departamento de Física Teórica I, Universidad Complutense de Madrid, Ciudad Universitaria, E-28040 Madrid (Spain); Cruz-Dombriz, A. de la, E-mail: fdalbareti@estumail.ucm.es, E-mail: cembra@fis.ucm.es, E-mail: alvaro.delacruz-dombriz@uct.ac.za [Astrophysics, Cosmology and Gravity Centre (ACGC), University of Cape Town, 7701 Rondebosch, Cape Town (South Africa)

2012-12-01T23:59:59.000Z

271

Particle creation and particle number in an expanding universe  

E-Print Network [OSTI]

I describe the logical basis of the method that I developed in 1962 and 1963 to define a quantum operator corresponding to the observable particle number of a quantized free scalar field in a spatially-flat isotropically expanding (and/or contracting) universe. This work also showed for the first time that particles were created from the vacuum by the curved space-time of an expanding spatially-flat FLRW universe. The same process is responsible for creating the nearly scale-invariant spectrum of quantized perturbations of the inflaton scalar field during the inflationary stage of the expansion of the universe. I explain how the method that I used to obtain the observable particle number operator involved adiabatic invariance of the particle number (hence, the name adiabatic regularization) and the quantum theory of measurement of particle number in an expanding universe. I also show how I was led in a surprising way, to the discovery in 1964 that there would be no particle creation by these spatially-flat FLRW universes for free fields of any integer or half-integer spin satisfying field equations that are invariant under conformal transformations of the metric. The methods I used to define adiabatic regularization for particle number, were based on generally-covariant concepts like adiabatic invariance and measurement that were fundamental and determined results that were unique to each given adiabatic order.

Leonard Parker

2012-05-25T23:59:59.000Z

272

Food reserves in mountain longleaf pine roots during shoot elongation.  

SciTech Connect (OSTI)

Roots of saplings appear to be models for healthy tissues in longleaf pines. Results show that roots of mountain longleaf pine have a normal anatomy, but also have unusual amounts of starch when compared to loblolly pine roots growing during phenologiexecy equal time periods. Roots appear large in diameter and grow much nearer the soil surface than roots observed from Coastal Plain longleaf pine. Starch grains are large in size and uniformly filled root cells. These results yield methodology potentially useful in assessment of health and productivity of longleaf pine.

Walkinshaw, C.H.; W.J. Otrosina

2001-03-20T23:59:59.000Z

273

Root region airfoil for wind turbine  

DOE Patents [OSTI]

A thick airfoil for the root region of the blade of a wind turbine. The airfoil has a thickness in a range from 24%-26% and a Reynolds number in a range from 1,000,000 to 1,800,000. The airfoil has a maximum lift coefficient of 1.4-1.6 that has minimum sensitivity to roughness effects.

Tangler, James L. (Boulder, CO); Somers, Dan M. (State College, PA)

1995-01-01T23:59:59.000Z

274

Mycorrhizal fungi in roots of Texas crops  

E-Print Network [OSTI]

were y 1. '1 t G~t~l( ht hyhd h ypi 1 thick outer wall and thin inner membrane (Fig. 14, p. 31) . Blackberry (Rubus sp. ) Root and Soil Material The blackberry sample was collected at Stephenville, Texas. Four different spore types were found...

Yeh, May-Wei Mavix

1975-01-01T23:59:59.000Z

275

Implementation of the Joint Duty Program at CIA: Analysis and Recommendations  

E-Print Network [OSTI]

This report assesses the strengths and weaknesses of the Joint Duty (JD) program as it is currently implemented at the CIA. Over the course of approximately six weeks, the Bush School 2012 Capstone interviewed - in-person and by phone - 160 CIA...

Burk, Judah; Ericson, Paige; Fillman, Kara; Graber, Jon; Jones, Elizabeth; Mitchell, Cheryl; Rodgers, Randy; Wilson, Naomi

2012-01-01T23:59:59.000Z

276

Behavior-based rules for fitness-for-duty assessment of nuclear power plant personnel  

SciTech Connect (OSTI)

The safe and reliable operation of nuclear power plants requires that plant personnel not be under the influence of any substance, legal or illegal, or mentally or physically impaired from any cause that in any way adversely affects their ability to safely and competently perform their duties. This goal has been formalized by the US Nuclear Regulatory Commission in their proposed rule for a fitness-for-duty program. The purpose of this paper is to describe a performance-based tool based on surrogate tests and dose equivalency methodologies that is a viable candidate for fitness-for-duty assessment. The automated performance test system (APTS) is a microcomputer-based human performance test battery that has been developed over a decade of research supported variously by the National Science Foundation, National Aeronautics and Space Administration, US Department of Energy, and the US Navy and Army. Representing the most psychometrically sound test from evaluations of over 150 well-known tests of basic psychomotor and cognitive skills, the battery provides direct prediction of a worker's fitness for duty. Twenty-four tests are suitable for use, and a dozen have thus far been shown to be sensitive to the effects of legal and illegal drugs, alcohol, fatigue, stress, and other causes of impairment.

Kennedy, R.S.; Turnage, J.J.; Price, H.E.; Lane, N.E.

1989-01-01T23:59:59.000Z

277

Questions, Answers and Clarifications Used MediumDuty Electric Vehicle Repower Demonstration  

E-Print Network [OSTI]

). Q5. A plug-in hybrid electric vehicle repower could provide some electric drive with an engine a hybrid solution (i.e. electric + renewable based pneumatic for hilly drive) as a part-duty gasoline and diesel vehicles to all-electric drive. The demonstration projects will identify and address

278

Reconstructing the duty of water: a study of emergent norms in socio-hydrology  

E-Print Network [OSTI]

This paper assesses the changing norms of water use known as the duty of water. It is a case study in historical socio-hydrology, or more precisely the history of socio-hydrologic ideas, a line of research that is useful ...

Wescoat, James

279

Detroit Diesel Engine Technology for Light Duty Truck Applications - DELTA Engine Update  

SciTech Connect (OSTI)

The early generation of the DELTA engine has been thoroughly tested and characterized in the virtual lab, during engine dynamometer testing, and on light duty trucks for personal transportation. This paper provides an up-to-date account of program findings. Further, the next generation engine design and future program plans will be briefly presented.

Freese, Charlie

2000-08-20T23:59:59.000Z

280

Bus Research and Testing Program Heavy-duty Chassis Dynamometer and Emissions Testing Facility  

E-Print Network [OSTI]

, hydrocarbons and carbon dioxide from transit buses and heavy-duty vehicles when they are tested on simulated · CO2, CO, HC, NOx, and particulates · Fuels: Diesel, gasoline, CNG, propane, LNG, LPG, ethanol · 30-ton axle capacity · 80 mph speed · Simulated road load curve · Test cycle simulation with driver

Lee, Dongwon

Note: This page contains sample records for the topic "duty roots expander" 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

Ambient-RF-Energy-Harvesting Sensor Node with Capacitor-Leakage-Aware Duty Cycle Control  

E-Print Network [OSTI]

Ambient-RF-Energy-Harvesting Sensor Node with Capacitor-Leakage-Aware Duty Cycle Control Ryo (WSN) that are solely powered by ambient RF power. Different from all other energy harvesting WSN for an energy storage in the energy harvesting system because of its efficient charge and discharge performance

Tentzeris, Manos

282

QUANTIFYING THE EXTERNAL COSTS OF VEHICLE USE: EVIDENCE FROM AMERICA'S TOP SELLING LIGHT-DUTY MODELS  

E-Print Network [OSTI]

-selling passenger cars and light-duty trucks in the U.S. Among these external costs, those associated with crashes estimated for several other vehicles of particular interest, including GM's Hummer and several hybrid drive: small cars, mid-sized cars, large cars, luxury cars, crossover utility vehicles (CUVs), sport

Kockelman, Kara M.

283

Adaptive Control of Duty Cycling in Energy-Harvesting Wireless Sensor Networks  

E-Print Network [OSTI]

Adaptive Control of Duty Cycling in Energy-Harvesting Wireless Sensor Networks Christopher M wireless sensor network deployments are using harvested environmental energy to extend system lifetime. Because the temporal profiles of such energy sources exhibit great variability due to dynamic weather

Massachusetts at Amherst, University of

284

On Minimum Delay Duty-Cycling Protocol in Sustainable Sensor Network  

E-Print Network [OSTI]

by other energy sources such as solar power. Due to the varying environment conditions, the energy supply networks, solar powered, duty- cycle, submodular. I. INTRODUCTION The wireless sensor network (WSN over time. To support those long-term applications, sustainable sensor networks, which harvest energy

Wu, Jie

285

Environmental Assessment Expanded Ponnequin Wind Energy Project Weld County, Colorado  

SciTech Connect (OSTI)

The U.S.Department of Energy (DOE) has considered a proposal from the State of Colorado, Office of Energy Conservation (OEC), for funding construction of the Expanded Ponnequin Wind Project in Weld County, Colorado. OEC plans to enter into a contracting arrangement with Public Service Company of Colorado (PSCO) for the completion of these activities. PSCo, along with its subcontractors and business partners, are jointly developing the Expanded Ponnequin Wind Project. DOE completed an environmental assessment of the original proposed project in August 1997. Since then, the geographic scope and the design of the project changed, necessitating additional review of the project under the National Environmental Policy Act. The project now calls for the possible construction of up to 48 wind turbines on State and private lands. PSCo and its partners have initiated construction of the project on private land in Weld County, Colorado. A substation, access road and some wind turbines have been installed. However, to date, DOE has not provided any funding for these activities. DOE, through its Commercialization Ventures Program, has solicited applications for financial assistance from state energy offices, in a teaming arrangement with private-sector organizations, for projects that will accelerate the commercialization of emerging renewable energy technologies. The Commercialization Ventures Program was established by the Renewable Energy and Energy Efficiency Technology Competitiveness Act of 1989 (P.L. 101-218) as amended by the Energy Policy Act of 1992 (P.L. 102-486). The Program seeks to assist entry into the marketplace of newly emerging renewable energy technologies, or of innovative applications of existing technologies. In short, an emerging renewable energy technology is one which has already proven viable but which has had little or no operational experience. The Program is managed by the Department of Energy, Office of Energy Efficiency and Renewable Energy. The Federal action triggering the preparation of this EA is the need for DOE to decide whether to release the requested funding to support the construction of the Expanded Ponnequin Wind Project. The purpose of this Final Environmental Assessment (EA) is to provide DOE and the public with information on potential environmental impacts associated with the Expanded Ponnequin Wind Energy Project. This EA, and public comments received on it, were used in DOE's deliberations on whether to release funding for the expanded project under the Commercialization Ventures Program.

N /A

1999-03-02T23:59:59.000Z

286

The Expression of P-Responsive Genes is Related to Root Hair Growth  

E-Print Network [OSTI]

formation of longer root hairs which has been well studied,resulting in enhanced root hair length elicited by the lackpattern along the root hair differentiation stages. Results

Bremer, Melanie; Schenk, Manfred K.

2009-01-01T23:59:59.000Z

287

An elementary optical gate for expanding entanglement web  

E-Print Network [OSTI]

We introduce an elementary optical gate for expanding polarization entangled W states, in which every pair of photons are entangled alike. The gate is composed of a pair of 50:50 beamsplitters and ancillary photons in the two-photon Fock state. By seeding one of the photons in an $n$-photon W state into this gate, we obtain an $(n+2)$-photon W state after post-selection. This gate gives a better efficiency and a simpler implementation than previous proposals for $\\rm W$-state preparation.

Toshiyuki Tashima; Sahin Kaya Ozdemir; Takashi Yamamoto; Masato Koashi; Nobuyuki Imoto

2008-03-13T23:59:59.000Z

288

Avoiding Intellectual Stagnation: The Starship as an Expander of Minds  

E-Print Network [OSTI]

Interstellar exploration will advance human knowledge and culture in multiple ways. Scientifically, it will advance our understanding of the interstellar medium, stellar astrophysics, planetary science and astrobiology. In addition, significant societal and cultural benefits will result from a programme of interstellar exploration and colonisation. Most important will be the cultural stimuli resulting from expanding the horizons of human experience, and increased opportunities for the spread and diversification of life and culture through the Galaxy. Ultimately, a programme of interstellar exploration may be the only way for human (and post-human) societies to avoid the intellectual stagnation predicted for the "end of history".

Crawford, Ian A

2015-01-01T23:59:59.000Z

289

Expanding the Frontiers of Visual Analytics and Visualization  

SciTech Connect (OSTI)

Expanding the Frontiers of Visual Analytics and Visualization contains international contributions by leading researchers from within the field. Dedicated to the memory of Jim Thomas, the book begins with the dynamics of evolving a vision based on some of the principles that Jim and colleagues established and in which Jim’s leadership was evident. This is followed by chapters in the areas of visual analytics, visualization, interaction, modelling, architecture, and virtual reality, before concluding with the key area of technology transfer to industry.

Dill, John; Earnshaw, Rae; Kasik, David; Vince, John; Wong, Pak C.

2012-05-31T23:59:59.000Z

290

Evaluation of expanded uncertainties in luminous intensity and illuminance calibrations  

SciTech Connect (OSTI)

Detector-based calibrating methods and expressions for calculation of photometric uncertainties related to uncertainties in the calibrations of luminous intensity of a light source, illuminance responsivity of a photometer head, and calibration factors of an illuminance meter are discussed. These methods permit luminous intensity calibrations of incandescent light sources, luminous responsivity calibrations of photometer heads, and calibration factors of illuminance meters to be carried out with relative expanded uncertainties (with a level of confidence of 95.45%) of 0.4%, 0.4%, and 0.6%, respectively.

Sametoglu, Ferhat

2008-11-01T23:59:59.000Z

291

Oregon Solar Company Expands, Hires Soldiers | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustion | Department ofT ib l L d F SSales LLCDiesel Enginesthe U.S.Solar Company Expands, Hires

292

Expanding Robust HCCI Operation (Delphi CRADA) | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-UpHeat PumpRecord ofESPCof EnergyHouse11 DOEExhaust energyChemistryofExpandingRobust

293

Widget:ExpandableTextStart | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 NoPublic Utilities Address: 160 East 300 South Place: SaltTroyer &AnchorTextExpandableTextStart Jump to:

294

Los Alamos National Laboratory cosponsors 30th Expanding Your Horizons  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc DocumentationP-SeriesFlickrinformationPostdocsCenterCentera A B C Dconference Expanding your

295

Y-12 grows and expands in the 1950s  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear SecurityTensile Strain Switched FerromagnetismWaste and MaterialsWenjun1ofRadiative1grows and expands in the 1950's

296

Waste Heat-to-Power in Small Scale Industry Using Scroll Expander...  

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

Waste Heat-to-Power in Small Scale Industry Using Scroll Expander for Organic Rankine Bottoming Cycle Waste Heat-to-Power in Small Scale Industry Using Scroll Expander for Organic...

297

Root region airfoil for wind turbine  

DOE Patents [OSTI]

A thick airfoil is described for the root region of the blade of a wind turbine. The airfoil has a thickness in a range from 24%--26% and a Reynolds number in a range from 1,000,000 to 1,800,000. The airfoil has a maximum lift coefficient of 1.4--1.6 that has minimum sensitivity to roughness effects. 3 Figs.

Tangler, J.L.; Somers, D.M.

1995-05-23T23:59:59.000Z

298

Quantification of exudation from sorghum roots  

E-Print Network [OSTI]

) rice, sugar cane (31, 35) wheat, corn, tomato, lucerne (35) corn, wheat, rice (31, 35, 39) legumes (31) decomposition: release of low molecular weight components from degenerate epidermal, cortical and root cap cells; invasion of cells... bacteria/g represent those units for wnich no co'onies were observed at a dilution of 10 30 The uniformity of colonies growing on the agar surface suggested that the variety of microbial species present in the experimental jars was greatly reduced from...

Kennedy, Lynne Susan

1980-01-01T23:59:59.000Z

299

SRS K-AREA MATERIAL STORAGE - EXPANDING CAPABILITIES  

SciTech Connect (OSTI)

In support of the Department of Energy’s continued plans to de-inventory and reduce the footprint of Cold War era weapons’ material production sites, the K-Area Material Storage (KAMS) facility, located in the K-Area Complex (KAC) at the Savannah River Site reservation, has expanded since its startup authorization in 2000 to accommodate DOE’s material consolidation mission. During the facility’s growth and expansion, KAMS will have expanded its authorization capability of material types and storage containers to allow up to 8200 total shipping containers once the current expansion effort completes in 2014. Recognizing the need to safely and cost effectively manage other surplus material across the DOE Complex, KAC is constantly evaluating the storage of different material types within K area. When modifying storage areas in KAC, the Documented Safety Analysis (DSA) must undergo extensive calculations and reviews; however, without an extensive and proven security posture the possibility for expansion would not be possible. The KAC maintains the strictest adherence to safety and security requirements for all the SNM it handles. Disciplined Conduct of Operations and Conduct of Projects are demonstrated throughout this historical overview highlighting various improvements in capability, capacity, demonstrated cost effectiveness and utilization of the KAC as the DOE Center of Excellence for safe and secure storage of surplus SNM.

Koenig, R.

2013-07-02T23:59:59.000Z

300

E-Print Network 3.0 - arabidopsis lateral root Sample Search...  

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

development was demonstrated,24... :www.landesbioscience.comjournalspsbabstract.php?id3604 KEy words homeodomain protein, root development, lateral root development, ......

Note: This page contains sample records for the topic "duty roots expander" 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

Assessing deployment strategies for ethanol and flex fuel vehicles in the U.S. light-duty vehicle fleet  

E-Print Network [OSTI]

Within the next 3-7 years the US light duty fleet and fuel supply will encounter what is commonly referred to as the "blend wall". This phenomenon describes the situation when more ethanol production has been mandated than ...

McAulay, Jeffrey L. (Jeffrey Lewis)

2009-01-01T23:59:59.000Z

302

Evaluating the impact of advanced vehicle and fuel technologies in U.S. light duty vehicle fleet  

E-Print Network [OSTI]

The unrelenting increase in oil use by the U.S. light-duty vehicle (LDV) fleet presents an extremely challenging energy and environmental problem. A variety of propulsion technologies and fuels have the promise to reduce ...

Bandivadekar, Anup P

2008-01-01T23:59:59.000Z

303

Heavy-duty diesel vehicle Nox? aftertreatment in 2010 : the infrastructure and compliance challenges of urea-SCR  

E-Print Network [OSTI]

Increasingly stringent heavy-duty vehicle emission regulations are prompting the use of PM and NOx aftertreatment systems in the US, the EU and Japan. In the US, the EPA Highway Diesel Rule, which will be fully implemented ...

Bodek, Kristian M

2008-01-01T23:59:59.000Z

304

Assessment of the validity of conductivity as an estimate of total dissolved solids in heavy-duty coolants  

SciTech Connect (OSTI)

Conductivity is widely used in the analysis of heavy-duty coolants to estimate total dissolved solids. TDS is of concern in heavy-duty coolants because the practice of adding supplemental coolant additives (SCAs) to the coolant can lead to overloading and to subsequent water pump seal weepage and failure. Conductivity has the advantage of being quick and easy to measure and the equipment is inexpensive. However, questions are continually raised as to whether conductivity truly is a valid method of estimating TDS and, if so, over what concentration range. The introduction of new chemistries in heavy-duty coolants and new extended service interval (ESI) technologies prompts a critical assessment. Conductivity and TDS measurements for all of the coolants and SCAs used in heavy-duty engines in North America will be presented. The effects of glycol concentration on conductivity will also be examined.

Carr, R.P. [Penray Companies, Inc., Wheeling, IL (United States)

1999-08-01T23:59:59.000Z

305

Fitness for duty in the nuclear industry: Update of the technical issues 1996  

SciTech Connect (OSTI)

The purpose of this report is to provide an update of information on the technical issues surrounding the creation, implementation, and maintenance of fitness-for-duty (FFD) policies and programs. It has been prepared as a resource for Nuclear Regulatory Commission (NRC) and nuclear power plant personnel who deal with FFD programs. It contains a general overview and update on the technical issues that the NRC considered prior to the publication of its original FFD rule and the revisions to that rule (presented in earlier NUREG/CRs). It also includes chapters that address issues about which there is growing concern and/or about which there have been substantial changes since NUREG/CR-5784 was published. Although this report is intended to support the NRC`s rule making on fitness for duty, the conclusions of the authors of this report are their own and do not necessarily represent the opinions of the NRC.

Durbin, N.; Grant, T. [eds.] [Battelle Seattle Research Center, WA (United States)

1996-05-01T23:59:59.000Z

306

High temperature solid lubricant materials for heavy duty and advanced heat engines  

SciTech Connect (OSTI)

Advanced engine designs incorporate higher mechanical and thermal loading to achieve efficiency improvements. This approach often leads to higher operating temperatures of critical sliding elements (e.g. piston ring/cylinder wall contacts and valve guides) which compromise the use of conventional and even advanced synthetic liquid lubricants. For these applications solid lubricants must be considered. Several novel solid lubricant composites and coatings designated PS/PM200 have been employed to dry and marginally oil lubricated contacts in advanced heat engines. These applications include cylinder kits of heavy duty diesels, and high temperature sterling engines, sidewall seals of rotary engines and various exhaust valve and exhaust component applications. The following paper describes the tribological and thermophysical properties of these tribomaterials and reviews the results of applying them to engine applications. Other potential tribological materials and applications are also discussed with particular emphasis to heavy duty and advanced heat engines.

DellaCorte, C.; Wood, J.C.

1994-10-01T23:59:59.000Z

307

Development and Demonstration of a Low Cost Hybrid Drive Train for Medium and Heavy Duty Vehicles  

SciTech Connect (OSTI)

The DOE sponsored effort is part of a larger effort to quantify the efficiency of hybrid powertrain systems through testing and modeling. The focus of the DOE sponsored activity was the design, development and testing of hardware to evaluate the efficiency of the electrical motors relevant to medium duty vehicles. Medium duty hybrid powertrain motors and generators were designed, fabricated, setup and tested. The motors were a permanent magnet configuration, constructed at Electric Apparatus Corporation in Howell, Michigan. The purpose of this was to identify the potential gains in terms of fuel cost savings that could be realized by implementation of such a configuration. As the electric motors constructed were prototype designs, the scope of the project did not include calculation of the costs of mass production of the subject electrical motors or generator.

Strangas, Elias; Schock, Harold; Zhu, Guoming; Moran, Kevin; Ruckle, Trevor; Foster, Shanelle; Cintron-Rivera, Jorge; Tariq, Abdul; Nino-Baron, Carlos

2011-04-30T23:59:59.000Z

308

California Greenhouse Gas Emissions Standards for Light-Duty Vehicles (released in AEO2005)  

Reports and Publications (EIA)

In July 2002, California Assembly Bill 1493 (A.B. 1493) was signed into law. The law requires that the California Air Resources Board (CARB) develop and adopt, by January 1, 2005, greenhouse gas emission standards for light-duty vehicles that provide the maximum feasible reduction in emissions. In estimating the feasibility of the standard, CARB is required to consider cost-effectiveness, technological capability, economic impacts, and flexibility for manufacturers in meeting the standard.

2005-01-01T23:59:59.000Z

309

Hennepin County`s experience with heavy-duty ethanol vehicles  

SciTech Connect (OSTI)

From November 1993 to October 1996, Hennepin County, which includes Minneapolis, field-tested two heavy-duty snowplow/road maintenance trucks fueled by ethanol. The overall objective of this program was to collect data from original equipment manufacturer alternative fuel heavy-duty trucks, along with comparable data from a similarly configured diesel-powered vehicle, to establish economic, emissions, performance, and durability data for the alternative fuel technology. These ethanol trucks, along with an identical third truck equipped with a diesel engine, were operated year round to maintain the Hennepin county roads. In winter, the trucks were run in 8-hour shifts plowing and hauling snow from urban and suburban roads. For the rest of the year, the three trucks were used to repair and maintain these same roads. As a result of this project, a considerable amount of data was collected on E95 fuel use, as well as maintenance, repair, emissions, and operational characteristics. Maintenance and repair costs of the E95 trucks were considerably higher primarily due to fuel filter and fuel pump issues. From an emissions standpoint, the E95 trucks emitted less particulate matter and fewer oxides of nitrogen but more carbon monoxide and hydrocarbons. Overall, the E95 trucks operated as well as the diesel, as long as the fuel filters were changed frequently. This project was a success in that E95, a domestically produced fuel from a renewable energy source, was used in a heavy-duty truck application and performed the same rigorous tasks as the diesel counterparts. The drawbacks to E95 as a heavy-duty fuel take the form of higher operational costs, higher fuel costs, shorter range, and the lack of over-the-road infrastructure.

NONE

1998-01-01T23:59:59.000Z

310

Sizes, graphitic structures and fractal geometry of light-duty diesel engine particulates.  

SciTech Connect (OSTI)

The particulate matter of a light-duty diesel engine was characterized in its morphology, sizes, internal microstructures, and fractal geometry. A thermophoretic sampling system was employed to collect particulates directly from the exhaust manifold of a 1.7-liter turbocharged common-rail direct-injection diesel engine. The particulate samples collected at various engine-operating conditions were then analyzed by using a high-resolution transmission electron microscope (TEM) and an image processing/data acquisition system. Results showed that mean primary particle diameters (dp), and radii of gyration (Rg), ranged from 19.4 nm to 32.5 nm and 77.4 nm to 134.1 nm, respectively, through the entire engine-operating conditions of 675 rpm (idling) to 4000 rpm and 0% to 100% loads. It was also revealed that the other important parameters sensitive to the particulate formation, such as exhaust-gas recirculation (EGR) rate, equivalence ratio, and temperature, affected particle sizes significantly. Bigger primary particles were measured at higher EGR rates, higher equivalence ratios (fuel-rich), and lower exhaust temperatures. Fractal dimensions (D{sup f}) were measured at a range of 1.5 - 1.7, which are smaller than those measured for heavy-duty direct-injection diesel engine particulates in our previous study. This finding implies that the light-duty diesel engine used in this study produces more stretched chain-like shape particles, while the heavy-duty diesel engine emits more spherical particles. The microstructures of diesel particulates were observed at high TEM magnifications and further analyzed by a Raman spectroscope. Raman spectra revealed an atomic structure of the particulates produced at high engine loads, which is similar to that of typical graphite.

Lee, K. O.; Zhu, J.; Ciatti, S.; Choi, M. Y.; Energy Systems; Drexel Univ.

2003-01-01T23:59:59.000Z

311

Medium and Heavy Duty Vehicle and Engine Testing | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustion | Department of EnergyDevelopmentTechnologies | Department ofMeasuringofHeavy Duty Vehicle

312

Medium and Heavy-Duty Vehicle Field Evaluations | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustion | Department of EnergyDevelopmentTechnologies | Department ofMeasuringofHeavy Duty

313

Medium and Heavy-Duty Vehicle Field Evaluations | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustion | Department of EnergyDevelopmentTechnologies | Department ofMeasuringofHeavy DutyMedium

314

Development of SCR on Diesel Particulate Filter System for Heavy Duty  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-UpHeat Pump Models |Conduct, Parent CompanyaUSAMP AMDHeavy Duty Trucks | Department

315

Development of Urea Dosing System for 10 Liter Heavy Duty Diesel Engine  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-UpHeat Pump Models |Conduct, Parent CompanyaUSAMP AMDHeavy Duty Trucks |2|

316

Development of a Waste Heat Recovery System for Light Duty Diesel Engines |  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-UpHeat Pump Models |Conduct, Parent CompanyaUSAMP AMDHeavy DutyLow

317

Simulation and Analysis of HP/LP EGR for Heavy-Duty Applications |  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustion |Energy Usage » SearchEnergyDepartment of EnergyLight-DutyCoating,Department of

318

Heavy-Duty Natural Gas Drayage Truck Replacement Program | Department of  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-UpHeatMulti-Dimensional Subject:Ground Hawaii CleanHeat PumpDuty

319

Advanced Technologies for Light-Duty Vehicles (released in AEO2006)  

Reports and Publications (EIA)

A fundamental concern in projecting the future attributes of light-duty vehicles-passenger cars, sport utility vehicles, pickup trucks, and minivans-is how to represent technological change and the market forces that drive it. There is always considerable uncertainty about the evolution of existing technologies, what new technologies might emerge, and how consumer preferences might influence the direction of change. Most of the new and emerging technologies expected to affect the performance and fuel use of light-duty vehicles over the next 25 years are represented in the National Energy Modeling System (NEMS); however, the potential emergence of new, unforeseen technologies makes it impossible to address all the technology options that could come into play. The previous section of Issues in Focus discussed several potential technologies that currently are not represented in NEMS. This section discusses some of the key technologies represented in NEMS that are expected to be implemented in light-duty vehicles over the next 25 years.

2006-01-01T23:59:59.000Z

320

Double-ended ceramic helical-rotor expander  

DOE Patents [OSTI]

A ceramic helical rotor expander is disclosed using a double-ended or tandem herringbone type rotor arrangement with bearing and seal assemblies remote from the hot gas inlets and especially capable of operating at an inlet temperature of above 1,100 C. The rotors are solid or hollow and bonded to hollow metal shafts, and mounted in a composite or simple prismatic casing. The rotors, casing and shafts are constructed from low expansivity materials. In the preferred embodiment the rotors are constructed of silicon nitride and the shafts constructed of an molybdenum alloy, with the metal shafts being supported in bearings and secured to synchronizing gears. The rotors and casing may be provided with coolant channels therein, and are constructed to eliminate the problem of end leakages at inlet temperature and pressure, and the need for high temperature bearings and seals. 3 figs.

Mohr, P.B.; Myers, W.B.

1995-02-28T23:59:59.000Z

Note: This page contains sample records for the topic "duty roots expander" 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

Battery energy storage market feasibility study -- Expanded report  

SciTech Connect (OSTI)

Under the sponsorship of the US Department of Energy`s Office of Utility Technologies, the Energy Storage Systems Analysis and Development Department at Sandia National Laboratories (SNL) contracted Frost and Sullivan to conduct a market feasibility study of energy storage systems. The study was designed specifically to quantify the battery energy storage market for utility applications. This study was based on the SNL Opportunities Analysis performed earlier. Many of the groups surveyed, which included electricity providers, battery energy storage vendors, regulators, consultants, and technology advocates, viewed battery storage as an important technology to enable increased use of renewable energy and as a means to solve power quality and asset utilization issues. There are two versions of the document available, an expanded version (approximately 200 pages, SAND97-1275/2) and a short version (approximately 25 pages, SAND97-1275/1).

Kraft, S. [Frost and Sullivan, Mountain View, CA (United States); Akhil, A. [Sandia National Labs., Albuquerque, NM (United States). Energy Storage Systems Analysis and Development Dept.

1997-09-01T23:59:59.000Z

322

Fermionization and bosonization of expanding 1D anyonic fluids  

E-Print Network [OSTI]

The momentum distribution of an expanding cloud of one-dimensional hard-core anyons is studied by an exact numerical approach, and shown to become indistinguishable from that of a non-interacting spin-polarized Fermi gas for large enough times (dynamical fermionization). We also consider the expansion of one-dimensional anyons with strongly attractive short-range interactions suddenly released from a parabolic external potential, and find that momentum distribution approaches that of its dual system, the ideal Bose gas (dynamical bosonization). For both processes the characteristic time scales are identified, and the effect of the initial confinement is analyzed comparing the dynamics associated with both harmonic and hard-wall traps.

A. del Campo

2008-05-25T23:59:59.000Z

323

Selection of nanoparticles using CO.sub.2-expanded liquids  

DOE Patents [OSTI]

A method for size selection of nanostructures comprising utilizing a gas-expanded liquids (GEL) and controlled pressure to precipitate desired size populations of nanostructures, e.g., monodisperse. The GEL can comprise CO.sub.2 antisolvent and an organic solvent. The method can be carried out in an apparatus comprising a first open vessel configured to allow movement of a liquid/particle solution to specific desired locations within the vessel, a second pressure vessel, a location controller for controlling location of the particles and solution within the first vessel, a inlet for addition of antisolvent to the first vessel, and a device for measuring the amount of antisolvent added. Also disclosed is a method for forming nanoparticle thin films comprising utilizing a GEL containing a substrate, pressurizing the solution to precipitate and deposit nanoparticles onto the substrate, removing the solvent thereby leaving a thin nanoparticle film, removing the solvent and antisolvent, and drying the film.

Roberts, Christopher B; McLeod, Marshall Chandler; Anand, Madhu

2013-02-19T23:59:59.000Z

324

Modelling the Nonlinear Gravitational Clustering in the Expanding Universe  

E-Print Network [OSTI]

The gravitational clustering of collisionless particles in an expanding universe is modelled using some simple physical ideas. I show that it is indeed possible to understand the nonlinear clustering in terms of three well defined regimes: (1) linear regime (2) quasilinear regime which is dominated by scale-invariant radial infall and (3) nonlinear regime dominated by nonradial motions and mergers. Modelling each of these regimes separately I show how the nonlinear two point correlation function can be related to the linear correlation function in heirarchical models. This analysis leads to results which are in good agreement with numerical simulations thereby providing an explanation for numerical results. The ideas presented here will also serve as a powerful anlytical tool to investigate nonlinear clustering in different models. Several implications of the result are discussed.

T. Padmanabhan

1995-08-26T23:59:59.000Z

325

Vacuum quantum fluctuation energy in expanding universe and dark energy  

E-Print Network [OSTI]

This article is based on the Planckon densely piled vacuum model and the principle of cosmology. With the Planck era as initial conditions and including the early inflation, we have solved the Einstein-Friedmann equations to describe the evolution of the universe. The results are: 1) the ratio of the dark energy density to the vacuum quantum fluctuation energy density is $\\frac{{{\\rho }_{de}}}{{{\\rho }_{vac}}}\\sim{{(\\frac{{{t}_{P}}}{{{T}_{0}}})}^{2}}\\sim{{10}^{-122}} $; 2) at the inflation time ${{t}_{\\inf }}={{10}^{-35}}s$, the calculated universe radiation energy density is $\\rho ({{t}_{\\inf }})\\sim{{10}^{-16}}{{\\rho }_{vac}}$ and the corresponding temperature is ${{E}_{c}}\\sim{{10}^{15}}GeV$ consistent with the GUT phase transition temperature; 3) the expanding universe with vacuum as its environment is a non-equilibrium open system constantly exchanging energy with vacuum; during its expansion, the Planckons in the universe lose quantum fluctuation energy and create the cosmic expansion quanta-cosmons, the energy of cosmons is the lost part of the vacuum quantum fluctuation energy and contributes to the universe energy with the calculated value ${{E}_{\\cos mos}}={{10}^{22}}{{M}_{\\otimes }}{{c}^{2}}$ (where ${{M}_{\\otimes }}$ is solar mass); 4) the total energy of the universe, namely the negative gravity energy plus the positive universe energy is zero; 5) the negative gravity potential and the gravity acceleration related to the creation of cosmons are derived with the nature of outward repulsive force, indicating that the cosmon may be the candidate of the dark energy quantum; 6) both the initial Planck era solution and the infinite asymptotic solution of the Einstein-Friedman equations are unstable: the former tends to expand and the latter tends to shrink, so that the Einstein-Friedman universe will undergo a cyclic evolution of successive expansion and shrinking.

Shun-Jin Wang

2014-10-27T23:59:59.000Z

326

Resource Assessment and Land Use Change Light Duty Vehicles/Fuels  

E-Print Network [OSTI]

investments in research and development to expand biofuel production · Biomass feedstock supplies needed maintained by University of Tennessee for second generation biofuels ­ Forest sector model to derive supply #12;Biomass Program Strategic Analysis Activities Strategic Analysis Impact Assessment TEA Pathway

327

altered root growth: Topics by E-print Network  

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

of roots was unaffected by the moderate salinity treatment while requires extra energy, which may be provided by an increase in maintenance respiration. At higher...

328

Feasibility Study Of Advanced Technology Hov Systems: Volume 2b: Emissions Impact Of Roadway-powered Electric Buses, Light-duty Vehicles, And Automobiles  

E-Print Network [OSTI]

LIGHT-DUTY VEHICLES, AND AUTOMOBILES Mark A. Miller Victorand The analysis involves automobiles in California arePowered Electric Automobiles -a---- Range of Estimated

Miller, Mark A.; Dato, Victor; Chira-chavala, Ted

1992-01-01T23:59:59.000Z

329

Regulatory Considerations Associated with the Expanded Adoption of Distributed Solar  

SciTech Connect (OSTI)

Increased adoption of distributed PV, and other forms of distributed generation, have the potential to affect utility-customer interactions, system costs recovery, and utility revenue streams. If a greater number of electricity customers choose to self-generate, demand for system power will decrease and utility fixed costs will have to be recovered over fewer kilowatt hours of sales. As such, regulators will need to determine the value and cost of additional distributed PV and determine the appropriate allocation of the costs and benefits among consumers. The potential for new business models to emerge also has implications for regulation and rate structures that ensure equitable solutions for all electricity grid users. This report examines regulatory tools and rate designs for addressing emerging issues with the expanded adoption of distributed PV and evaluates the potential effectiveness and viability of these options going forward. It offers the groundwork needed in order for regulators to explore mechanisms and ensure that utilities can collect sufficient revenues to provide reliable electric service, cover fixed costs, and balance cost equity among ratepayers -- while creating a value proposition for customers to adopt distributed PV.

Bird, L.; McLaren, J.; Heeter, J.; Linvill, C.; Shenot, J.; Sedano, R.; Migden-Ostrander, J.

2013-11-01T23:59:59.000Z

330

Use of proton beams with breast prostheses and tissue expanders  

SciTech Connect (OSTI)

Since the early 2000s, a small but rapidly increasing number of patients with breast cancer have been treated with proton beams. Some of these patients have had breast prostheses or tissue expanders in place during their courses of treatment. Procedures must be implemented to plan the treatments of these patients. The density, kilovoltage x-ray computed tomography numbers (kVXCTNs), and proton relative linear stopping powers (pRLSPs) were calculated and measured for several test sample devices. The calculated and measured kVXCTNs of saline were 1% and 2.4% higher than the values for distilled water while the calculated RLSP for saline was within 0.2% of the value for distilled water. The measured kVXCTN and pRLSP of the silicone filling material for the test samples were approximately 1120 and 0.935, respectively. The conversion of kVXCTNs to pRLSPs by the treatment planning system standard tissue conversion function is adequate for saline-filled devices but for silicone-filled devices manual reassignment of the pRLSPs is required.

Moyers, Michael F., E-mail: MFMoyers@roadrunner.com [ProCure Proton Therapy Center, Somerset, NJ (United States); Mah, Dennis; Boyer, Sean P.; Chang, Chang [ProCure Proton Therapy Center, Somerset, NJ (United States); Pankuch, Mark [ProCure Proton Therapy Center, Warrenville, IL (United States)

2014-04-01T23:59:59.000Z

331

The fragmentation of expanding shells II: Thickness matters  

E-Print Network [OSTI]

We study analytically the development of gravitational instability in an expanding shell having finite thickness. We consider three models for the radial density profile of the shell: (i) an analytic uniform-density model, (ii) a semi-analytic model obtained by numerical solution of the hydrostatic equilibrium equation, and (iii) a 3D hydrodynamic simulation. We show that all three profiles are in close agreement, and this allows us to use the first model to describe fragments in the radial direction of the shell. We then use non-linear equations describing the time-evolution of a uniform oblate spheroid to derive the growth rates of shell fragments having different sizes. This yields a dispersion relation which depends on the shell thickness, and hence on the pressure confining the shell. We compare this dispersion relation with the dispersion relation obtained using the standard thin-shell analysis, and show that, if the confining pressure is low, only large fragments are unstable. On the other hand, if the...

Wunsch, Richard; Palous, Jan; Whitworth, Anthony P

2010-01-01T23:59:59.000Z

332

HERS: An expanding program in a shrinking world  

SciTech Connect (OSTI)

When the Haskell Environmental Research Studies Center (HERS) was established in 1994, it was responsible for administering the Native American and Other Minority Institutions (NAOMI) program in conjunction with the Great Plains/Rocky Mountain Hazardous Substance Research Center (HSRC). Today, HERS is involved in myriad programs with several different organizations. In addition to continuing its close relationship with the HSRC, HERS has worked with the Institute for Tribal Environmental Professionals (ITEP), the National Institute for Land Management and Training (NILMT) at Kansas State University, and the Technical outreach Services for Communities Program. Partnerships have also been formed with several corporate entities including the Boeing Commercial Airplane Group, Stone and Webster Environmental Technology and Services, and Roy F. Weston. HERS has worked with these organizations and companies in striving to reach its goals of (1) increasing the level of involvement of Native American faculty and students in research and training relating to hazardous substances and other environmental issues; and (2) expanding the knowledge base of tribal environmental professions. Programs and projects designed to achieve this goal include the Pesticide Technology Curriculum for Native Americans, the NAOMI Seminar Series, and ITEP`s Air Quality Workshop.

Griswold, W.M.; Godfrey, G.L.; Yazzie, J. [Haskell Indian Nations Univ., Lawrence, KS (United States). Dept. of Natural and Social Sciences; Grant, S.C. [Kansas State Univ., Manhattan, KS (United States). Great Plains/Rocky Mountain Hazardous Substance Research Center

1997-12-31T23:59:59.000Z

333

Waste Heat-to-Power in Small Scale Industry Using Scroll Expander...  

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

Waste Heat-to-Power in Small Scale Industry Using Scroll Expander for Organic Rankine Bottoming Cycle Development of an Efficient, Cost- Effective System to Recover Medium- Grade...

334

Expanding, axisymmetric pure-radiation gravitational fields with a simple twist  

E-Print Network [OSTI]

New expanding, axisymmetric pure-radiation solutions are found, exploiting the analogy with the Euler-Darboux equation for aligned colliding plane waves.

B. V. Ivanov

2001-03-27T23:59:59.000Z

335

Partially linear models with unit roots  

E-Print Network [OSTI]

in the regression and consider Dy t H11005dy tH110021 H11001utH11001 ( jH110051 p p j Dy tH11002j H11001g~x t !H11001e t , (2.4) where t is a simple time trend+ In practice, ~2+4! would be used to test if a series has a unit root with a drift versus ~linear! trend... with these regressors+ Thus, corresponding to regression ~2+3!, z t H11005 ~y tH110021 , Dy tH110021 ,+++,Dy tH11002p ! ' ,gH11005~d,p 1 ,+++,p p ! H11477 ; and corresponding to regression ~2+4!, z t H11005~y tH110021 ,t,Dy tH110021 ,+++,Dy tH11002p ! H11477 ,gH11005~d...

Juhl, Ted P.; Xiao, Z. J.

2005-10-01T23:59:59.000Z

336

Characterization of In-Use Medium Duty Electric Vehicle Driving and Charging Behavior: Preprint  

SciTech Connect (OSTI)

The U.S. Department of Energy's American Recovery and Reinvestment Act (ARRA) deployment and demonstration projects are helping to commercialize technologies for all-electric vehicles (EVs). Under the ARRA program, data from Smith Electric and Navistar medium duty EVs have been collected, compiled, and analyzed in an effort to quantify the impacts of these new technologies. Over a period of three years, the National Renewable Energy Laboratory (NREL) has compiled data from over 250 Smith Newton EVs for a total of over 100,000 days of in-use operation. Similarly, data have been collected from over 100 Navistar eStar vehicles, with over 15,000 operating days having been analyzed. NREL has analyzed a combined total of over 4 million kilometers of driving and 1 million hours of charging data for commercial operating medium duty EVs. In this paper, the authors present an overview of medium duty EV operating and charging behavior based on in-use data collected from both Smith and Navistar vehicles operating in the United States. Specifically, this paper provides an introduction to the specifications and configurations of the vehicles examined; discusses the approach and methodology of data collection and analysis, and presents detailed results regarding daily driving and charging behavior. In addition, trends observed over the course of multiple years of data collection are examined, and conclusions are drawn about early deployment behavior and ongoing adjustments due to new and improving technology. Results and metrics such as average daily driving distance, route aggressiveness, charging frequency, and liter per kilometer diesel equivalent fuel consumption are documented and discussed.

Duran, A.; Ragatz, A.; Prohaska, R.; Kelly, K.; Walkowicz, K.

2014-11-01T23:59:59.000Z

337

Piston Bowl Optimization for RCCI Combustion in a Light-Duty Multi-Cylinder Engine  

SciTech Connect (OSTI)

Reactivity Controlled Compression Ignition (RCCI) is an engine combustion strategy that that produces low NO{sub x} and PM emissions with high thermal efficiency. Previous RCCI research has been investigated in single-cylinder heavy-duty engines. The current study investigates RCCI operation in a light-duty multi-cylinder engine at 3 operating points. These operating points were chosen to cover a range of conditions seen in the US EPA light-duty FTP test. The operating points were chosen by the Ad Hoc working group to simulate operation in the FTP test. The fueling strategy for the engine experiments consisted of in-cylinder fuel blending using port fuel-injection (PFI) of gasoline and early-cycle, direct-injection (DI) of diesel fuel. At these 3 points, the stock engine configuration is compared to operation with both the original equipment manufacturer (OEM) and custom machined pistons designed for RCCI operation. The pistons were designed with assistance from the KIVA 3V computational fluid dynamics (CFD) code. By using a genetic algorithm optimization, in conjunction with KIVA, the piston bowl profile was optimized for dedicated RCCI operation to reduce unburned fuel emissions and piston bowl surface area. By reducing these parameters, the thermal efficiency of the engine was improved while maintaining low NOx and PM emissions. Results show that with the new piston bowl profile and an optimized injection schedule, RCCI brake thermal efficiency was increased from 37%, with the stock EURO IV configuration, to 40% at the 2,600 rev/min, 6.9 bar BMEP condition, and NOx and PM emissions targets were met without the need for exhaust after-treatment.

Hanson, Reed M [ORNL; Curran, Scott [ORNL; Wagner, Robert M [ORNL; Reitz, Rolf [University of Wisconsin; Kokjohn, Sage [University of Wisconsin, Madison

2012-01-01T23:59:59.000Z

338

Light-duty vehicle mpg and market shares report, model year 1988  

SciTech Connect (OSTI)

This issue of Light-Duty Vehicle MPG and Market Shares Report: Model Year 1988 reports the estimated sales-weighted fuel economies, sales, market shares, and other vehicle characteristics of automobiles and light trucks. The estimates are made on a make and model basis, from model year 1976 to model year 1988. Vehicle sales data are used as weighting factors in the sales-weighted estimation procedure. Thus, the estimates represent averages of the overall new vehicle fleet, reflecting the composition of the fleet. Highlights are provided on the trends in the vehicle characteristics from one model year to the next. Analyses are also made on the fuel economy changes to determine the factors which caused the changes. The sales-weighted fuel economy for the new car fleet in model year 1988 showed an improvement of 0.1 mpg from model year 1987, while light trucks showed a 0.2 mpg loss. The 0.2 mpg loss by the light trucks can be attributed to the fact that every light truck size class experienced either losses or no change in their fuel economies from the previous model year, except for the large van size class. Overall, the sales-weighted fuel economy of the entire light-duty vehicle fleet (automobiles and light trucks combined) has remained relatively stable since model year 1986. Domestic light-duty vehicles began to gain popularity over their import counterparts; and light trucks increased their market shares relative to automobiles. Domestic cars regained 0.3% of the automobile market, reversing the previous trend. Similar to the automobile market, domestic light trucks continued to gain popularity over their import counterparts, partly due to the increasing popularity of domestic small vans. 3 refs., 35 figs., 48 tabs.

Hu, P.S.; Williams, L.S.; Beal, D.J.

1989-04-01T23:59:59.000Z

339

Tank selection for Light Duty Utility Arm (LDUA) system hot testing in a single shell tank  

SciTech Connect (OSTI)

The purpose of this report is to recommend a single shell tank in which to hot test the Light Duty Utility Arm (LDUA) for the Tank Waste Remediation System (TWRS) in Fiscal Year 1996. The LDUA is designed to utilize a 12 inch riser. During hot testing, the LDUA will deploy two end effectors (a High Resolution Stereoscopic Video Camera System and a Still/Stereo Photography System mounted on the end of the arm`s tool interface plate). In addition, three other systems (an Overview Video System, an Overview Stereo Video System, and a Topographic Mapping System) will be independently deployed and tested through 4 inch risers.

Bhatia, P.K.

1995-01-31T23:59:59.000Z

340

Light Duty Utility Arm system pre-operational (cold test) test plan  

SciTech Connect (OSTI)

The Light Duty Utility (LDUA) Cold Test Facility, located in the Hanford 400 Area, will be used to support cold testing (pre- operational tests) of LDUA subsystems. Pre-operational testing is composed of subsystem development testing and rework activities, and integrated system qualification testing. Qualification testing will be conducted once development work is complete and documentation is under configuration control. Operational (hot) testing of the LDUA system will follow the testing covered in this plan and will be covered in a separate test plan

Bennett, K.L.

1995-10-20T23:59:59.000Z

Note: This page contains sample records for the topic "duty roots expander" 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

Selection of Light Duty Truck Engine Air Systems Using Virtual Lab Tests  

SciTech Connect (OSTI)

An integrated development approach using seasoned engine technology methodologies, virtual lab parametric investigations, and selected hardware verification tests reflects today's state-of-the-art R&D trends. This presentation will outline such a strategy. The use of this ''Wired'' approach results in substantial reduction in the development cycle time and hardware iterations. An example showing the virtual lab application for a viable design of the air-exhaust-turbocharger system of a light duty truck engine for personal transportation will be presented.

Zhang, Houshun

2000-08-20T23:59:59.000Z

342

Fueling U.S. Light Duty Diesel Vehicles | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-UpHeatMulti-Dimensional ElectricalEnergyQuality ChallengesFueling U.S. Light Duty

343

Non-Cost Barriers to Consumer Adoption of New Light-Duty Vehicle Technologies  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the Contributions andDataNationalNewportBig Eddy Archeological Siteornl.govLIGHT-DUTY

344

On Combining Duty-cycling with Network Coding in Flood-based Sensor Networks  

E-Print Network [OSTI]

of coding, there are periods of time when a node does not benefit from overhearing coded packets being transmitted. We seek to precisely determine these periods of time, and let nodes that do not benefit from these ?useless? packets to sleep. Our solution...] is an instance of NetCode. We describe its operation in detail because we aim to analytically demonstrate, in the sections that follow, that the introduction of our smart duty-cycle does not come with any major overhead. The operation of NetCode is depicted...

Chandanala, Roja Ramani

2012-02-14T23:59:59.000Z

345

Light-Duty Diesel EngineTechnology to Meet Future Emissions and Performance  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-UpHeatMulti-Dimensionalthe10IO1OP001 Letter Report:Life-CycleDutyR&DPart

346

Light-Duty Diesel Market Potential in North America | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-UpHeatMulti-Dimensionalthe10IO1OP001 Letter Report:Life-CycleDutyR&DPartMarket

347

Light-Duty Lean GDI Vehicle Technology Benchmark | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-UpHeatMulti-Dimensionalthe10IO1OP001 LetterLight-Duty Lean GDI Vehicle Technology

348

Long-Term Aging of NOx Sensors in Heavy-Duty Engine Exhaust | Department of  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-UpHeatMulti-Dimensionalthe10IO1OP001 LetterLight-Duty11.2.1310employeeLong

349

Heavy-Duty NOx Emissions Control: Reformer-Assisted vs. Plasma-Facilitated  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-UpHeatMulti-Dimensional Subject:Ground Hawaii CleanHeat PumpDuty HCCIModelingLean NOx

350

Heavy-Duty Natural Gas Drayage Truck Replacement Program | Department of  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-UpHeatMulti-Dimensional Subject:Ground Hawaii CleanHeat PumpDuty HCCIModelingLean

351

Heavy-Duty Natural Gas Drayage Truck Replacement Program | Department of  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-UpHeatMulti-Dimensional Subject:Ground Hawaii CleanHeat PumpDutyEnergy 0 DOE Vehicle

352

Heavy-Duty Powertrain and Vehicle Development - A Look Toward 2020 |  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-UpHeatMulti-Dimensional Subject:Ground Hawaii CleanHeat PumpDutyEnergy 0

353

Heavy-Duty Truck Engine: 2007 Emissions with Excellent Fuel Economy |  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-UpHeatMulti-Dimensional Subject:Ground Hawaii CleanHeat PumpDutyEnergy 0Department of

354

Alternative Fuels Data Center: Heavy-Duty Truck Idle Reduction Technologies  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc Documentation RUCProductstwrmrAreSmartWayElectricity Fuel Basics toWith PropaneHeavy-Duty

355

Alternative Fuels Data Center: Light-Duty Vehicle Idle Reduction Strategies  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc Documentation RUCProductstwrmrAreSmartWayElectricity FuelUse Knoxville UtilitiesLight-Duty

356

Reflection systems and partial root systems Ottmar Loos and Erhard Neher  

E-Print Network [OSTI]

Reflection systems and partial root systems Ottmar Loos and Erhard Neher Abstract. We develop a general theory of reflection systems and, more specifically, partial root sys- tems which provide a unifying framework for finite root systems, Kac-Moody root systems, extended affine root systems

Neher, Erhard

357

Original article Root biomass and biomass increment in a beech  

E-Print Network [OSTI]

Original article Root biomass and biomass increment in a beech (Fagus sylvatica L.) stand in North ­ This study is part of a larger project aimed at quantifying the biomass and biomass increment been developed to estimate the biomass and biomass increment of coarse, small and fine roots of trees

Paris-Sud XI, Université de

358

Establishing and Sustaining System Integrity via Root of Trust Installation  

E-Print Network [OSTI]

integrity. The TPM-based integrity measurement approaches are effective for measuring well-known, staticEstablishing and Sustaining System Integrity via Root of Trust Installation Abstract Integrity the management of a system's integrity, we propose a Root of Trust Installation (ROTI) as a foundation for high

McDaniel, Patrick Drew

359

Micropropagation Rooting and weaning of apple rootstock YP  

E-Print Network [OSTI]

Micropropagation Rooting and weaning of apple rootstock YP M Uosukainen Agricultural Research-23 May 1992, Dijon, France) Summary — Rooting and weaning of the Finnish apple rootstock YP were arbusculaires INTRODUCTION Research on micropropagation of apple trees started > 20 yr ago (Elliot, 1972; Walkey

Paris-Sud XI, Université de

360

Original article Effects of sodium chloride salinity on root growth  

E-Print Network [OSTI]

either 50 or 250 mM NaCl. Both moderate and high salinity treatment strongly altered root elongation. In contrast, specific respiration of roots was unaffected by the moderate salinity treatment while ecosystems [11].The effects of snow melt have been documented for wetland ecosystems [14] but

Paris-Sud XI, Université de

Note: This page contains sample records for the topic "duty roots expander" 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

Charged black holes in expanding Einstein-de Sitter universes  

E-Print Network [OSTI]

Inspired in a previous work by McClure and Dyer (Classical Quantum Gravity 23, 1971 (2006)), we analyze some solutions of the Einstein-Maxwell equations which were originally written to describe charged black holes in cosmological backgrounds. A detailed analysis of the electromagnetic sources for a sufficiently general metric is performed, and then we focus on deriving the electromagnetic four-current as well as the conserved electric charge of each metric. The charged McVittie solution is revisited and a brief study of its causal structure is performed, showing that it may represent a charged black hole in an expanding universe, with the black hole horizon being formed at infinite late times. Charged versions of solutions originally put forward by Vaidya (Vd) and Sultana and Dyer (SD) are also analyzed. It is shown that the charged Sultana-Dyer metric requires a global electric current, besides a central (pointlike) electric charge. With the aim of comparing to the charged McVittie metric, new charged solutions of Vd and SD type are considered. In these cases, the original mass and charge parameters are replaced by particular functions of the cosmological time. In the new generalized charged Vaidya metric the black hole horizon never forms, whereas in the new generalized Sultana-Dyer case both the Cauchy and the black hole horizons develop at infinite late times. A charged version of the Thakurta metric is also studied here. It is also a new solution. As in the charged Sultana-Dyer case, the natural source of the electromagnetic field is a central electric charge with an additional global electric current. The global structure is briefly studied and it is verified that the corresponding spacetime may represent a charged black hole in a cosmological background. All the solutions present initial singularities as found in the McVittie metric.

Manuela G. Rodrigues; Vilson T. Zanchin

2015-02-02T23:59:59.000Z

362

Do metallic ports in tissue expanders affect postmastectomy radiation delivery?  

SciTech Connect (OSTI)

Purpose: Postmastectomy radiation therapy (PMRT) is often delivered to patients with permanent breast implants. On occasion, patients are irradiated with a tissue expander (TE) in place before their permanent implant exchange. Because of concern of potential under-dosing in these patients, we examined the dosimetric effects of the Magna-Site (Santa Barbara, CA) metallic port that is present in certain TEs. Methods and Materials: We performed ex vivo film dosimetry with single 6-MV and 15-MV photon beams on a water phantom containing a Magna-Site disc in two orientations. Additionally, using in vivo films, we measured the exit dose from 1 patient's TE-reconstructed breast during chest wall treatment with 15-MV tangent beams. Finally, we placed thermoluminescent dosimeters (TLDs) on 6 patients with TEs who received PMRT delivered with 15-MV tangent beams. Results: Phantom film dosimetry revealed decreased transmission in the region of the Magna-Site, particularly with the magnet in the parallel orientation (at 22 mm: 78% transmission with 6 MV, 84% transmission with 15 MV). The transmission measured by in vivo films during single beam treatment concurred with ex vivo results. TLD data showed acceptable variation in median dose to the skin (86-101% prescription dose). Conclusion: Because of potential dosimetric effects of the Magna-Site, it is preferable to treat PMRT patients with permanent implants. However, it is not unreasonable to treat with a TE because the volume of tissue affected by attenuation from the Magna-Site is small. In this scenario, we recommend using 15 MV photons with compensating bolus.

Damast, Shari [Department of Radiation Oncology, Memorial Sloan-Kettering Cancer Center, New York, NY (United States); Beal, Kathryn [Department of Radiation Oncology, Memorial Sloan-Kettering Cancer Center, New York, NY (United States)]. E-mail: bealk@mskcc.org; Ballangrud, Ase [Department of Medical Physics, Memorial Sloan-Kettering Cancer Center, New York, NY (United States); Losasso, Thomas J. [Department of Medical Physics, Memorial Sloan-Kettering Cancer Center, New York, NY (United States); Cordeiro, Peter G. [Department of Surgery, Memorial Sloan-Kettering Cancer Center, New York, NY (United States); Disa, Joseph J. [Department of Surgery, Memorial Sloan-Kettering Cancer Center, New York, NY (United States); Hong, Linda [Department of Radiation Oncology, Montefiore Medical Center, Bronx, NY (United States); McCormick, Beryl L. [Department of Radiation Oncology, Memorial Sloan-Kettering Cancer Center, New York, NY (United States)

2006-09-01T23:59:59.000Z

363

Duty cycle generator for average model of buck converter with current-mode control -- Using analog behavioral modeling of PSpice  

SciTech Connect (OSTI)

This paper presents a duty cycle generator for an average model of buck converter with current-mode control, which can simultaneously deal with both the continuous conduction model (CCM) and the discontinuous conduction mode (DCM). First, a duty cycle generator is mathematically derived, considering the transient-state of the current-loop. This technique plays an important role when the operating modes are changed under a considerable amount of step load change. Second, taking advantage of the analog behavioral modeling of PSpice, duty cycle generators for both the time and frequency domain analyses are built into a PSpice file. The accuracy of these models is verified through the computer simulations, which is compared to the actual circuit for the time domain analysis and the small signal model for the frequency analysis.

Hong, S.S. [Hyundai Electronics Industries Co., Ltd., Kyoungki-Do (Korea, Republic of); Jo, B.R. [LG Electronics Inc., Seoul (Korea, Republic of). Image and Media Lab.; Youn, M.J. [Korea Advanced Inst. of Science and Technology, Taejon (Korea, Republic of). Dept. of Electrical Engineering

1996-11-01T23:59:59.000Z

364

Towards understanding tree root profiles: simulating hydrologically optimal strategies for root distribution Hydrology and Earth System Sciences, 5(4), 629644 (2001) EGS  

E-Print Network [OSTI]

Towards understanding tree root profiles: simulating hydrologically optimal strategies for root distribution 629 Hydrology and Earth System Sciences, 5(4), 629­644 (2001) © EGS Towards understanding tree root profiles: simulating hydrologically optimal strategies for root distribution M.T. van Wijk and W

Boyer, Edmond

365

ORIGINAL PAPER The Rationale for an Expanded Inertial Fusion Energy Program  

E-Print Network [OSTI]

ORIGINAL PAPER The Rationale for an Expanded Inertial Fusion Energy Program Stephen O. Dean for an expanded effort on the development of inertial fusion as an energy source is dis- cussed. It is argued that there should be a two-pronged, complementary approach to fusion energy development over the next two to three

366

Development of a General-purpose Expandable Arm for Small Mobile Robots  

E-Print Network [OSTI]

Development of a General-purpose Expandable Arm for Small Mobile Robots T. Hashimoto, T. Tomizawa In this paper we present our developed expandable sliding arm which enables a small sized mobile robot to push and pull objects. The mobile robot arm can manipulate objects such as elevator buttons, light switches

Ohya, Akihisa

367

Taylor relaxation and decay of unbounded, freely-expanding J. Yee and P.M. Bellan  

E-Print Network [OSTI]

Taylor relaxation and ¸ decay of unbounded, freely-expanding spheromaks J. Yee and P.M. BellanJÁ=BÁ indicate that the spheromak is decaying and expanding in a manner analogous to a self's relaxation model [1,2] has been successfully applied to many fusion related plasmas, especially spheromaks

Bellan, Paul M.

368

Optimizing Data Replication for Expanding Ring-based Queries in Wireless Sensor  

E-Print Network [OSTI]

Optimizing Data Replication for Expanding Ring-based Queries in Wireless Sensor Networks Bhaskar are disseminated using expand- ing rings. We obtain closed-form approximations for the expected energy costs such as changes, movements and failures of nodes in the net- work). Randomized storage can also provide for a more

Krishnamachari, Bhaskar

369

Model-Based Analysis of Electric Drive Options for Medium-Duty Parcel Delivery Vehicles: Preprint  

SciTech Connect (OSTI)

Medium-duty vehicles are used in a broad array of fleet applications, including parcel delivery. These vehicles are excellent candidates for electric drive applications due to their transient-intensive duty cycles, operation in densely populated areas, and relatively high fuel consumption and emissions. The National Renewable Energy Laboratory (NREL) conducted a robust assessment of parcel delivery routes and completed a model-based techno-economic analysis of hybrid electric vehicle (HEV) and plug-in hybrid electric vehicle configurations. First, NREL characterized parcel delivery vehicle usage patterns, most notably daily distance driven and drive cycle intensity. Second, drive-cycle analysis results framed the selection of drive cycles used to test a parcel delivery HEV on a chassis dynamometer. Next, measured fuel consumption results were used to validate simulated fuel consumption values derived from a dynamic model of the parcel delivery vehicle. Finally, NREL swept a matrix of 120 component size, usage, and cost combinations to assess impacts on fuel consumption and vehicle cost. The results illustrated the dependency of component sizing on drive-cycle intensity and daily distance driven and may allow parcel delivery fleets to match the most appropriate electric drive vehicle to their fleet usage profile.

Barnitt, R. A.; Brooker, A. D.; Ramroth, L.

2010-12-01T23:59:59.000Z

370

Natural Gas as a Future Fuel for Heavy-Duty Vehicles  

SciTech Connect (OSTI)

In addition to their significant environmental impacts, medium-duty and heavy-duty (HD) vehicles are high volume fuel users. Development of such vehicles, which include transit buses, refuse trucks, and HD Class 6-8 trucks, that are fueled with natural gas is strategic to market introduction of natural gas vehicles (NGV). Over the past five years the Department of Energy's (DOE) Office of Heavy Vehicle Technologies (OHVT) has funded technological developments in NGV systems to support the growth of this sector in the highly competitive transportation market. The goals are to minimize emissions associated with NGV use, to improve on the economies of scale, and to continue supporting the testing and safety assessments of all new systems. This paper provides an overview of the status of major projects under a program supported by DOE/OHVT and managed by Brookhaven National Laboratory. The discussion focuses on the program's technical strategy in meeting specific goals proposed by the N GV industry and the government. Relevant projects include the development of low-cost fuel storage, fueling infrastructure, and HD vehicle applications.

Wai-Lin Litzke; James Wegrzyn

2001-05-14T23:59:59.000Z

371

Fleet test evaluations of an automotive and medium-duty truck coolant filter conditioner  

SciTech Connect (OSTI)

The use of coolant filtration and supplemental coolant additives (SCA) to replenish depleted protective chemistry has been applied in the heavy duty diesel arena for many years. Some filtration of coolant and SCA usage in light gasoline engine and automotive diesel engine vehicles has taken place using off-board equipment to filter and recondition coolant. As concerns about the environment have increased, disposal of spent coolant that is replaced on a scheduled basis is a burden on fleets as well as individuals. In addition, as the efforts by vehicle manufacturers to extend or eliminate routine service intervals of vehicle systems increase, the use of an on-board system has become more attractive. A number of filtration/conditioning designs have been developed for light and medium duty use and have been on field tests for over a year. These field tests are described and reported, along with background on the filter design and chemistry package used. Field testing included: low and high mileage vehicles; newer and older vehicles; well and poorly maintained vehicles; and an assessment of the possibility of overcharging of the coolant chemistry.

Wright, A.B. [AlliedSignal Filters and Spark Plugs, Perrysburg, OH (United States)

1999-08-01T23:59:59.000Z

372

Analysis of C1, C2, and C10 through C33 particle-phase and semi-volatile organic compound emissions from heavy-duty diesel engines  

E-Print Network [OSTI]

from heavy-duty diesel engines Z. Gerald Liu a,*, Devin R. Berg a , Victoria N. Vasys a , Melissa E 18 November 2009 Keywords: Organic compound emissions Particulate matter emissions Heavy-duty diesel engines Aftertreatment technology Diesel particulate filter Chemical speciation a b s t r a c t To meet

Wu, Mingshen

373

Methodology and characterization of root hair density, distribution and viability among warm-season perennial grasses  

E-Print Network [OSTI]

. 1986); and pea, Pisum sativum L. (Smit et al. 1989). o . Cytologically, root hairs are very different with respect to root epidermal cells. The microfibrils of the inner cell wall of root hairs have a helicoidal texture that gradually changes...

Oprisko, Marianne Jo

1991-01-01T23:59:59.000Z

374

E-Print Network 3.0 - anopheles darlingi root Sample Search Results  

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

in Anopheles darlingi Root. Mem Inst Oswaldo Cruz 1996, 91... of Anophelines in the Suriname rainforest with special reference to Anopheles darlingi Root. Cahiers de l... with...

375

The morphology of stimulated roots of the pecan  

E-Print Network [OSTI]

- Primary xylem and phIA?m in pecan roots de velop simultaneously through speoialisation of primordial meristem cells in a manner typical of dicotyledonous plants, The nsaber of xylem strands varies with the siss of the root~ thickness of the cortex... used as a plaoe of storage. (8) Esau (l) states that 1n Juglandacees~ the oentral cylinder and tbe inner cortex arise frcm one set of initislsv while the rest of ths cor ter snd the root csp arise from another. The outermost lawyer of the cortex...

White, Thomas G

1958-01-01T23:59:59.000Z

376

Plasma Catalysis for NOx Reduction from Light-Duty Diesel Vehicles  

SciTech Connect (OSTI)

On behalf of the Department of Energy's Office of FreedomCAR and Vehicle Technologies, we are pleased to introduce the Fiscal Year (FY) 2004 Annual Progress Report for the Advanced Combustion Engine R&D Sub-Program. The mission of the FreedomCAR and Vehicle Technologies Program is to develop more energy efficient and environmentally friendly highway transportation technologies that enable Americans to use less petroleum for their vehicles. The Advanced Combustion Engine R&D Sub-Program supports this mission by removing the critical technical barriers to commercialization of advanced internal combustion engines for light-, medium-, and heavy-duty highway vehicles that meet future Federal and state emissions regulations. The primary objective of the Advanced Combustion Engine R&D Sub-Program is to improve the brake thermal efficiency of internal combustion engines from 30 to 45 percent for light-duty applications by 2010; and 40 to 55 percent for heavy-duty applications by 2012; while meeting cost, durability, and emissions constraints. R&D activities include work on combustion technologies that increase efficiency and minimize in-cylinder formation of emissions, as well as aftertreatment technologies that further reduce exhaust emissions. Work is also being conducted on ways to reduce parasitic and heat transfer losses through the development and application of thermoelectrics and turbochargers that include electricity generating capability, and conversion of mechanically driven engine components to be driven via electric motors. This introduction serves to outline the nature, current progress, and future directions of the Advanced Combustion Engine R&D Sub-Program. The research activities of this Sub-Program are planned in conjunction with the FreedomCAR Partnership and the 21st Century Truck Partnership and are carried out in collaboration with industry, national laboratories, and universities. Because of the importance of clean fuels in achieving low emissions, R&D activities are closely coordinated with the relevant activities of the Fuel Technologies Sub-Program, also within the Office of FreedomCAR and Vehicle Technologies. Research is also being undertaken on hydrogen-fueled internal combustion engines to provide an interim hydrogen-based powertrain technology that promotes the longer-range FreedomCAR Partnership goal of transitioning to a hydrogen-fueled transportation system. Hydrogen engine technologies being developed have the potential to provide diesel-like engine efficiencies with near-zero emissions.

None

2005-12-15T23:59:59.000Z

377

Heavy-Duty Truck Emissions in the South Coast Air Basin of Gary A. Bishop,* Brent G. Schuchmann,  

E-Print Network [OSTI]

Heavy-Duty Truck Emissions in the South Coast Air Basin of California Gary A. Bishop,* Brent G, Colorado 80208, United States ABSTRACT: California and Federal emissions regulations for 2007 and newer of nitrogen spurring the introduction of new aftertreatment systems. Since 2008, four emission measurement

Denver, University of

378

Time-Sensitive Utility-Based Routing in Duty-Cycle Wireless Sensor Networks with Unreliable Links  

E-Print Network [OSTI]

different paths. Their utility values are calculated in Section III-A and are listed in Fig. 5. waitTime-Sensitive Utility-Based Routing in Duty-Cycle Wireless Sensor Networks with Unreliable Links}@ustc.edu.cn Abstract--Utility-based routing is a special routing approach, which takes the reliability and transmission

Wu, Jie

379

PON-10-603 Advanced Medium-and Heavy-Duty Vehicle Technologies Pre-Commercial Demonstrations Questions and Answers  

E-Print Network [OSTI]

-for-profit technology entities might include, but are not limited to: CalETC CALSTART California Biodiesel AlliancePON-10-603 Advanced Medium- and Heavy-Duty Vehicle Technologies Pre-Commercial Demonstrations-for-profit technology entity who will be responsible for administering the block grant and coordinating projects

380

Student Assembly Offices Student Assembly Representatives: There are four representatives per class to the Student Assembly. Their duties are to  

E-Print Network [OSTI]

Student Assembly Offices Student Assembly Representatives: There are four representatives per class to the Student Assembly. Their duties are to: Represent the student body of the Medical College of Wisconsin-section of the student body. Fairly administer and distribute all funds including those designated as Student Activity

Note: This page contains sample records for the topic "duty roots expander" 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

\\\\due.uci.edu\\due\\Files\\SAC\\CIE\\STAFF\\Duties\\REGIONS.DOC ` 09/06/13 Staff Advisor Regions  

E-Print Network [OSTI]

\\\\due.uci.edu\\due\\Files\\SAC\\CIE\\STAFF\\Duties\\REGIONS.DOC ` 09/06/13 Staff Advisor Regions UCI Study.studyabroad.uci.edu Advisor Countries/Regions (EAP & IOP) EAP Countries Chrystal Fairbanks cfairban@uci.edu (949) 824

Barrett, Jeffrey A.

382

6 TRANSPORTATION OF SPECIMENS All samples to be transported should be packaged in heavy-duty containers and should comply  

E-Print Network [OSTI]

plastic bags (see Webb 1998). Place samples in a strong insulated container or cardboard box. Addresses-duty containers and should comply with the appropriate local protocol. It is important that all agencies involved with tape and enclosed in sealed plastic bags. Specimens can also be sent wrapped; place tissues in paper

Marsh, Helene

383

A techno-economic analysis and optimization of Li-ion batteries for light-duty passenger vehicle electrification  

E-Print Network [OSTI]

A techno-economic analysis and optimization of Li-ion batteries for light-duty passenger vehicle thickness a b s t r a c t We conduct a techno-economic analysis of Li-ion NMC-G prismatic pouch battery

McGaughey, Alan

384

Department of Energy and Electrical Engineering Spring 2012 Heavy-Duty Diesel Engine Friction Reduction Testing and Analysis  

E-Print Network [OSTI]

PENNSTATE Department of Energy and Electrical Engineering Spring 2012 Heavy-Duty Diesel Engine and pumping frictional losses on Volvo-Mack's 11 liter Diesel Engine. Thermocouples and pressure transducers is to quantify friction losses on Volvo's current 11-liter engine model. Team members will remove hardware

Demirel, Melik C.

385

Department of Mechanical and Nuclear Engineering Spring 2012 Heavy-Duty Diesel Engine Friction Reduction Testing and Analysis  

E-Print Network [OSTI]

PENNSTATE Department of Mechanical and Nuclear Engineering Spring 2012 Heavy-Duty Diesel Engine Friction Reduction Testing and Analysis Overview Volvo Group Powertrain Engineering is interested will need to be constructed that can motor the engine and measure power losses using a torque sensor built

Demirel, Melik C.

386

Chinese Americans in China: Ethnicity, Transnationalism, and Roots Tourism  

E-Print Network [OSTI]

tourism," is a major and easily accessible means through which people can recreate and retain the social ties with their ancestral communities. Roots tourism is loosely defined as a type of tourism in which ethnic minorities visit their ancestral lands...

Ueda (Maruyama), Naho

2010-07-14T23:59:59.000Z

387

Intern experience at Brown & Root, Inc.: an internship report  

E-Print Network [OSTI]

. The internship report outlines the process by which Brown & Root carries out the design and construction of offshore oil and gas production facilities ... A supplementary presentation of the author's previous experience at an oil company permits...

Kibbee, Stephen Edward, 1951-

2013-03-13T23:59:59.000Z

388

Root Morphology of Drought Resistance in Cotton (Gossypium hirsutum L.)  

E-Print Network [OSTI]

A combination of root morphology and plant physiology with drought/or salt tolerance should affect drought resistance in cotton (Gossypium hirsutum L.). This experiment was developed to evaluate early vegetative and seedling growth of cotton from...

Dewi, Elvira Sari

2011-02-22T23:59:59.000Z

389

Power functions and envelopes for unit root tests  

E-Print Network [OSTI]

This paper studies power functions and envelopes for covariate augmented unit root tests. The power functions are calculated by integrating the characteristic function, allowing accurate evaluation of the power envelope ...

Juhl, Ted P.; Xiao, Z. J.

2003-04-01T23:59:59.000Z

390

affects cluster root: Topics by E-print Network  

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

is an important determinant of the form of the root system. It affects the way and for cultivation systems which can influence tree growth and anchorage. This review discusses...

391

PCI Express multi-root switch reconfiguration during system operation  

E-Print Network [OSTI]

As the use of data continues to expand, reliance on enterprise datacenters have become more and more critical. Evaluation of modern day datacenter performance has showed that datacenter servers are severely underutilized, ...

Wong, Heymian

2011-01-01T23:59:59.000Z

392

Fleet Evaluation and Factory Installation of Aerodynamic Heavy Duty Truck Trailers  

SciTech Connect (OSTI)

The purpose of DE-EE0001552 was to develop and deploy a combination of trailer aerodynamic devices and low rolling resistance tires that reduce fuel consumption of a class 8 heavy duty tractor-trailer combination vehicle by 15%. There were 3 phases of the project: Phase 1 – Perform SAE Typed 2 track tests with multiple device combinations. Phase 2 – Conduct a fleet evaluation with selected device combination. Phase 3 – Develop the devices required to manufacture the aerodynamic trailer. All 3 phases have been completed. There is an abundance of available trailer devices on the market, and fleets and owner operators have awareness of them and are purchasing them. The products developed in conjunction with this project are at least in their second round of refinement. The fleet test undertaken showed an improvement of 5.5 – 7.8% fuel economy with the devices (This does not include tire contribution).

Beck, Jason; Salari, Kambiz; Ortega, Jason; Brown, Andrea

2013-09-30T23:59:59.000Z

393

Review of Heavy-Duty Engine Combustion Research at Sandia National Laboratories  

SciTech Connect (OSTI)

The objectives of this paper are to describe the research efforts in diesel engine combustion at Sandia National Laboratories' Combustion Research Facility and to provide recent experimental results. We have four diesel engine experiments supported by the Department of Energy, Office of Heavy Vehicle Technologies: a one-cylinder version of a Cummins heavy-duty engine, a diesel simulation facility, a one-cylinder Caterpillar engine to evaluate combustion of alternative fuels, and a homogeneous-charge, compression-ignition (HCCI) engine facility is under development. Recent experimental results to be discussed are: the effects of injection timing and diluent addition on late-combustion soot burnout, diesel-spray ignition and premixed-burn behavior, a comparison of the combustion characteristics of M85 (a mixture of 85% methanol and 15% gasoline) and DF2 (No.2 diesel reference fuel), and a description of our HCCI experimental program and modeling work.

Robert W. Carling; Gurpreet Singh

2000-06-19T23:59:59.000Z

394

FUEL CONSUMPTION AND COST SAVINGS OF CLASS 8 HEAVY-DUTY TRUCKS POWERED BY NATURAL GAS  

SciTech Connect (OSTI)

We compare the fuel consumption and greenhouse gas emissions of natural gas and diesel heavy-duty (HD) class 8 trucks under consistent simulated drive cycle conditions. Our study included both conventional and hybrid HD trucks operating with either natural gas or diesel engines, and we compare the resulting simulated fuel efficiencies, fuel costs, and payback periods. While trucks powered by natural gas engines have lower fuel economy, their CO2 emissions and costs are lower than comparable diesel trucks. Both diesel and natural gas powered hybrid trucks have significantly improved fuel economy, reasonable cost savings and payback time, and lower CO2 emissions under city driving conditions. However, under freeway-dominant driving conditions, the overall benefits of hybridization are considerably less. Based on payback period alone, non-hybrid natural gas trucks appear to be the most economic option for both urban and freeway driving environments.

Gao, Zhiming [ORNL] [ORNL; LaClair, Tim J [ORNL] [ORNL; Daw, C Stuart [ORNL] [ORNL; Smith, David E [ORNL] [ORNL

2013-01-01T23:59:59.000Z

395

Efficiency Improvement Opportunities for Light-Duty Natural-Gas-Fueled Vehicles  

SciTech Connect (OSTI)

The purpose of this report is to evaluate and make recommendations concerning technologies that promise to improve the efilciency of compressed natural gas (CNG) light-duty vehicles. Technical targets for CNG automotive technology given in the March 1998 OffIce of Advanced Automotive Technologies research and development plan were used as guidance for this effort. The technical target that necessitates this current study is to validate technologies that enable CNG light vehicles to have at least 10% greater - fuel economy (on a miles per gallon equivalent basis) than equivalent gasoline vehicles by 2006. Other tar- gets important to natural gas (NG) automotive technology and this study are to: (1) increase CNG vehicle range to 380 miles, (2) reduce the incremental vehicle cost (CNG vs gasoline) to $1500, and (3) meet the California ultra low-emission vehicle (ULEV) and Federal Tier 2 emission standards expected to be in effect in 2004.

Staunton, R.H.; Thomas, J.F.

1998-12-01T23:59:59.000Z

396

Methods, systems and apparatus for adjusting duty cycle of pulse width modulated (PWM) waveforms  

DOE Patents [OSTI]

Embodiments of the present invention relate to methods, systems and apparatus for controlling operation of a multi-phase machine in a vector controlled motor drive system when the multi-phase machine operates in an overmodulation region. The disclosed embodiments provide a mechanism for adjusting a duty cycle of PWM waveforms so that the correct phase voltage command signals are applied at the angle transitions. This can reduce variations/errors in the phase voltage command signals applied to the multi-phase machine so that phase current may be properly regulated thus reducing current/torque oscillation, which can in turn improve machine efficiency and performance, as well as utilization of the DC voltage source.

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

2013-05-21T23:59:59.000Z

397

Regulated Emissions from Biodiesel Tested in Heavy-Duty Engines Meeting 2004 Emission Standards  

SciTech Connect (OSTI)

Biodiesel produced from soybean oil, canola oil, yellow grease, and beef tallow was tested in two heavy-duty engines. The biodiesels were tested neat and as 20% by volume blends with a 15 ppm sulfur petroleum-derived diesel fuel. The test engines were the following: 2002 Cummins ISB and 2003 DDC Series 60. Both engines met the 2004 U.S. emission standard of 2.5 g/bhp-h NO{sub x}+HC (3.35 g/kW-h) and utilized exhaust gas recirculation (EGR). All emission tests employed the heavy-duty transient procedure as specified in the U.S. Code of Federal Regulations. Reduction in PM emissions and increase in NO{sub x} emissions were observed for all biodiesels in all engines, confirming observations made in older engines. On average PM was reduced by 25% and NO{sub x} increased by 3% for the two engines tested for a variety of B20 blends. These changes are slightly larger in magnitude, but in the same range as observed in older engines. The cetane improver 2-ethyl hexyl nitrate was shown to have no measurable effect on NO{sub x} emissions from B20 in these engines, in contrast to observations reported for older engines. The effect of intake air humidity on NO{sub x} emissions from the Cummins ISB was quantified. The CFR NO{sub x}/humidity correction factor was shown to be valid for an engine equipped with EGR, operating at 1700 m above sea level, and operating on conventional or biodiesel.

McCormick, R. L.; Tennant, C. J.; Hayes, R. R.; Black, S.; Ireland, J.; McDaniel, T.; Williams, A.; Frailey, M.; Sharp, C. A.

2005-11-01T23:59:59.000Z

398

Time-Sensitive Utility-Based Routing inTime-Sensitive Utility-Based Routing inTime-Sensitive Utility-Based Routing inTime-Sensitive Utility-Based Routing in Duty-Cycle Wireless Sensor Networks withDuty-Cycle Wireless Sensor Networks withDuty-Cycle Wireles  

E-Print Network [OSTI]

Time-Sensitive Utility-Based Routing inTime-Sensitive Utility-Based Routing inTime-Sensitive Utility-Based Routing inTime-Sensitive Utility-Based Routing in Duty-Cycle Wireless Sensor Networks with TEMPLE UNIVERSITY #12;Introduction: utility-based routingIntroduction: utility-based routing

Wu, Jie

399

Medium Truck Duty Cycle Data from Real-World Driving Environments: Final Report  

SciTech Connect (OSTI)

Since the early part of the 20th century, the US trucking industry has provided a safe and economical means of moving commodities across the country. At present, nearly 80% of US domestic freight movement involves the use of trucks. The US Department of Energy (DOE) is spearheading a number of research efforts to improve heavy vehicle fuel efficiencies. This includes research in engine technologies (including hybrid and fuel cell technologies), lightweight materials, advanced fuels, and parasitic loss reductions. In addition, DOE is developing advanced tools and models to support heavy vehicle research and is leading the 21st Century Truck Partnership and the SuperTruck development effort. Both of these efforts have the common goal of decreasing the fuel consumption of heavy vehicles. In the case of SuperTruck, a goal of improving the overall freight efficiency of a combination tractor-trailer has been established. This Medium Truck Duty Cycle (MTDC) project is a critical element in DOE s vision for improved heavy vehicle energy efficiency; it is unique in that there is no other existing national database of characteristic duty cycles for medium trucks based on collecting data from Class 6 and 7 vehicles. It involves the collection of real-world data on medium trucks for various situational characteristics (e.g., rural/urban, freeway/arterial, congested/free-flowing, good/bad weather) and looks at the unique nature of medium trucks drive cycles (stop-and-go delivery, power takeoff, idle time, short-radius trips). This research provides a rich source of data that can contribute to the development of new tools for FE and modeling, provide DOE a sound basis upon which to make technology investment decisions, and provide a national archive of real-world-based medium-truck operational data to support energy efficiency research. The MTDC project involved a two-part field operational test (FOT). For the Part-1 FOT, three vehicles each from two vocations (urban transit and dry-box delivery) were instrumented for the collection of one year of operational data. The Part-2 FOT involved the towing and recovery and utility vocations for a second year of data collection. The vehicles that participated in the MTDC project did so through gratis partnerships in return for early access to the results of this study. Partnerships such as these are critical to FOTs in which real-world data is being collected. In Part 1 of the project, Oak Ridge National Laboratory (ORNL) established partnerships with the H.T. Hackney Company (HTH), one of the largest wholesale distributors in the country, distributing products to 21 states; and with Knoxville Area Transit (KAT), the city of Knoxville s transit system, which operates across Knoxville and parts of Knox County. These partnerships and agreements provided ORNL access to three Class-7 day-cab tractors that regularly haul 28 ft pup trailers (HTH) and three Class-7 buses for the collection of duty cycle data. In addition, ORNL collaborated with the Federal Motor Carrier Safety Administration (FMCSA) to determine if there were possible synergies between this duty cycle data collection effort and FMCSA s need to learn more about the operation and duty cycles of medium trucks. FMCSA s primary interest was in collecting safety data relative to the driver, carrier, and vehicle. In Part 2 of the project, ORNL partnered with the Knoxville Utilities Board, which made available three Class-8 trucks. Fountain City Wrecker Service was also a Part 2 partner, providing three Class-6 rollback trucks. In order to collect the duty cycle and safety-related data, ORNL developed a data acquisition system (DAS) that was placed on each test vehicle. Each signal recorded in this FOT was collected by means of one of the instruments incorporated into each DAS. Other signals were obtained directly from the vehicle s J1939 and J1708 data buses. A VBOX II Lite collected information available from a global positioning system (GPS), including speed, acceleration, and spatial location information at a rate of 5 Hz for the Part 1

Lascurain, Mary Beth [ORNL; Franzese, Oscar [ORNL; Capps, Gary J [ORNL; Siekmann, Adam [ORNL; Thomas, Neil [ORNL; LaClair, Tim J [ORNL; Barker, Alan M [ORNL; Knee, Helmut E [ORNL

2012-11-01T23:59:59.000Z

400

Medium Truck Duty Cycle Data from Real-World Driving Environments: Project Interim Report  

SciTech Connect (OSTI)

Since the early part of the 20th century, the US trucking industry has provided a safe and economical means of moving commodities across the country. At the present time, nearly 80% of the US domestic freight movement involves the use of trucks. The US Department of Energy (DOE) is spearheading a number of research efforts to improve heavy vehicle fuel efficiencies. This includes research in engine technologies (including hybrid and fuel cell technologies), lightweight materials, advanced fuels, and parasitic loss reductions. In addition, DOE is developing advanced tools and models to support heavy vehicle truck research, and is leading the 21st Century Truck Partnership whose stretch goals involve a reduction by 50% of the fuel consumption of heavy vehicles on a ton-mile basis. This Medium Truck Duty Cycle (MTDC) Project is a critical element in DOE s vision for improved heavy vehicle energy efficiency and is unique in that there is no other national database of characteristic duty cycles for medium trucks. It involves the collection of real-world data for various situational characteristics (rural/urban, freeway/arterial, congested/free-flowing, good/bad weather, etc.) and looks at the unique nature of medium trucks drive cycles (stop-and-go delivery, power takeoff, idle time, short-radius trips), to provide a rich source of data that can contribute to the development of new tools for fuel efficiency and modeling, provide DOE a sound basis upon which to make technology investment decisions, and provide a national archive of real-world-based medium-truck operational data to support heavy vehicle energy efficiency research. The MTDC project involves a two-part field operational test (FOT). For the Part-1 FOT, three vehicles, each from two vocations (urban transit and dry-box delivery) were instrumented for one year of data collection. The Part-2 FOT will involve the towing/recovery and utility vocations. The vehicles participating in the MTDC project are doing so through gratis partnerships in return for early access to the results of this study. Partnerships such as these are critical to FOTs in which real-world data is being collected. In Part 1 of the project, Oak Ridge National Laboratory(ORNL) established partnerships with the H.T. Hackney Company, one of the largest wholesale distributors in the country, distributing products to 21 states; and with the Knoxville Area Transit (KAT), the City of Knoxville s transit system, operating services across the city of Knoxville and parts of Knox co. These partnerships and agreements provided ORNL access to three Class-7 2005/2007 International day-cab tractors, model 8600, which regularly haul 28 ft pup trailers (H.T. Hackney Co) and three Class-7 2005 Optima LF-34 buses (KAT), for collection of duty cycle data. In addition, ORNL has collaborated with the Federal Motor Carrier Safety Administration (FMCSA) to determine if there were possible synergies between this duty cycle data collection effort and FMCSA s need to learn more about the operation and duty cycles of the second-largest fuel consuming commercial vehicle category in the US. FMCSA s primary interest was in collecting safety data relative to the driver, carrier, and vehicle. In order to collect the duty cycle and safety-related data, ORNL developed a data acquisition and wireless communication system that was placed on each test vehicle. Each signal recorded in this FOT was collected by means of one of the instruments incorporated into each data acquisition system (DAS). Native signals were obtained directly from the vehicle s J1939 and J1708 data buses. A VBOX II Lite collected Global Positioning System related information including speed, acceleration, and spatial location information at a rate of 5 Hz, and communicated this data via the CAN (J1939) protocol. The Air-Weigh LoadMaxx, a self-weighing system which determines the vehicle s gross weight by means of pressure transducers and posts the weight to the vehicle s J1939 data bus, was used to collect vehicle payload information. A cellular modem, the Raven X

Franzese, Oscar [ORNL; Lascurain, Mary Beth [ORNL; Capps, Gary J [ORNL

2011-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "duty roots expander" 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

From Fjords to Open Seas: Ecological Genomics of Expanding Oxygen Minimum Zones (2010 JGI User Meeting)  

ScienceCinema (OSTI)

Steven Hallam of the University of British Columbia talks "From Fjords to Open Seas: Ecological Genomics of Expanding Oxygen Minimum Zones" on March 24, 2010 at the 5th Annual DOE JGI User Meeting

Hallam, Steven

2011-04-26T23:59:59.000Z

402

Liquid over-feeding refrigeration system and method with integrated accumulator-expander-heat exchanger  

DOE Patents [OSTI]

A refrigeration system having a vapor compression cycle utilizing a liquid over-feeding operation with an integrated accumulator-expander-heat exchanger. Hot, high-pressure liquid refrigerant from the condenser passes through one or more lengths of capillary tubing substantially immersed in a pool liquid refrigerant in the accumulator-expander-heat exchanger for simultaneously sub-cooling and expanding the liquid refrigerant while vaporizing liquid refrigerant from the pool for the return thereof to the compressor as saturated vapor. The sub-cooling of the expanded liquid provides for the flow of liquid refrigerant into the evaporator for liquid over-feeding the evaporator and thereby increasing the efficiency of the evaporation cycle.

Mei, Viung C. (Oak Ridge, TN); Chen, Fang C. (Knoxville, TN)

1997-01-01T23:59:59.000Z

403

Economic Impacts of Expanded Woody Biomass Utilization on the Bioenergy and Forest Products Industries in Florida  

E-Print Network [OSTI]

1 Economic Impacts of Expanded Woody Biomass Utilization on the Bioenergy and Forest Products as the starting point for implementation of the CGE model, which finds a solution where all markets

Florida, University of

404

Expanding the Solvent Chemical Space for Self-Assembly of Dipeptide Nanostructures  

E-Print Network [OSTI]

Expanding the Solvent Chemical Space for Self-Assembly of Dipeptide Nanostructures Thomas O. Mason,† Dimitri Y. Chirgadze,‡ Aviad Levin,¶ Lihi Adler-Abramovich,¶ Ehud Gazit,¶ Tuomas P. J. Knowles,?,† and Alexander K. Buell?,† Department of Chemistry...

Mason, Thomas O.; Chirgadze, Dimitri Y.; Levin, Aviad; Adler-Abramovich, Lihi; Gazit, Ehud; Knowles, Tuomas P. J.; Buell, Alexander K.

2014-01-14T23:59:59.000Z

405

IFC HVAC interface to EnergyPlus - A case of expanded interoperability for energy simulation  

E-Print Network [OSTI]

D. Sucic and P. Xu. 2002. HVAC Component Data Modeling Using2001. BS-8 project: IFC HVAC extension schemata. http://IFC HVAC INTERFACE TO ENERGYPLUS – A CASE OF EXPANDED

Bazjanac, Vladimir; Maile, Tobias

2004-01-01T23:59:59.000Z

406

Development of a floating piston expander control algorithm for a Collins-type cryocooler  

E-Print Network [OSTI]

The multi-stage Collins-type cryocooler uses a floating piston design for the working fluid expansion in each stage. The piston floats between a cold volume, where the working fluid is expanded, and a warm volume. The ...

Hogan, Jake (Jake R.)

2012-01-01T23:59:59.000Z

407

Analogue Cosmological Particle Creation: Quantum Correlations in Expanding Bose Einstein Condensates  

E-Print Network [OSTI]

We investigate the structure of quantum correlations in an expanding Bose Einstein Condensate (BEC) through the analogue gravity framework. We consider both a 3+1 isotropically expanding BEC as well as the experimentally relevant case of an elongated, effectively 1+1 dimensional, expanding condensate. In this case we include the effects of inhomogeneities in the condensate, a feature rarely included in the analogue gravity literature. In both cases we link the BEC expansion to a simple model for an expanding spacetime and then study the correlation structure numerically and analytically (in suitable approximations). We also discuss the expected strength of such correlation patterns and experimentally feasible BEC systems in which these effects might be detected in the near future.

Angus Prain; Serena Fagnocchi; Stefano Liberati

2010-09-15T23:59:59.000Z

408

Liquid over-feeding refrigeration system and method with integrated accumulator-expander-heat exchanger  

DOE Patents [OSTI]

A refrigeration system is described having a vapor compression cycle utilizing a liquid over-feeding operation with an integrated accumulator-expander-heat exchanger. Hot, high-pressure liquid refrigerant from the condenser passes through one or more lengths of capillary tubing substantially immersed in a pool liquid refrigerant in the accumulator-expander-heat exchanger for simultaneously sub-cooling and expanding the liquid refrigerant while vaporizing liquid refrigerant from the pool for the return thereof to the compressor as saturated vapor. The sub-cooling of the expanded liquid provides for the flow of liquid refrigerant into the evaporator for liquid over-feeding the evaporator and thereby increasing the efficiency of the evaporation cycle. 4 figs.

Mei, V.C.; Chen, F.C.

1997-04-22T23:59:59.000Z

409

EXPANDED MIXED FINITE ELEMENT METHODS FOR QUASILINEAR SECOND ORDER ELLIPTIC PROBLEMS, II  

E-Print Network [OSTI]

EXPANDED MIXED FINITE ELEMENT METHODS FOR QUASILINEAR SECOND ORDER ELLIPTIC PROBLEMS, II Zhangxin coefficient times the gradient). Based on this formulation, mixed finite element approximations with low permeability and to the transport equation with small dispersion in groundwater modeling

410

Electron Diamagnetic Effect on Axial Force in an Expanding Plasma: Experiments and Theory  

SciTech Connect (OSTI)

The axial force imparted from a magnetically expanding current-free plasma is directly measured for three different experimental configurations and compared with a two-dimensional fluid theory. The force component solely resulting from the expanding field is directly measured and identified as an axial force produced by the azimuthal current due to an electron diamagnetic drift and the radial component of the magnetic field. The experimentally measured forces are well described by the theory.

Takahashi, Kazunori [Space Plasma, Power and Propulsion Laboratory, Research School of Physics and Engineering, Australian National University, Canberra ACT 0200 (Australia); Department of Electrical Engineering and Computer Science, Iwate University, Morioka 020-8551 (Japan); Lafleur, Trevor; Charles, Christine; Alexander, Peter; Boswell, Rod W. [Space Plasma, Power and Propulsion Laboratory, Research School of Physics and Engineering, Australian National University, Canberra ACT 0200 (Australia)

2011-12-02T23:59:59.000Z

411

Performance characteristics of a turbo expander substituted for expansion valve on air-conditioner  

SciTech Connect (OSTI)

An experimental study is conducted on a small turbo expander which could be applied to the expansion process in place of expansion valves in refrigerator or air-conditioner to improve the cycle efficiency by recovering energy from the throttling process. The operating gas is HFC134a and the maximum cooling capacity of experiment apparatus is 32.7 kW. Four different turbo expanders are tested to find the performance characteristics of the turbo expander when they operate at a low partial admission rate. The partial admission rate is 1.70% or 2.37, and expanders are operated in the supersonic flow. In the experiment, pressure and temperature are measured at 10 different locations in the experimental apparatus. In addition to these measurements, output power at the turbo expander is measured through a generator installed on a rotor shaft with the rotational speed. Performance data of the turbo expander are obtained at many part load operations by adjusting the output power of the generator. A maximum of 15.8% total-to-static efficiency is obtained when the pressure ratio and the partial admission ratio are 2.37 and 1.70%, respectively. Experimental results show that the optimal velocity ratio decreases when the pressure ratio is decreased, and peak efficiencies, which are obtained at locally maximized efficiency depending on the operating condition, vary linearly against the subcooling temperature or the pressure ratio. (author)

Cho, Soo-Yong [Department of Mechanical and Aerospace Engineering (ReCAPT), Gyeongsang National University, 900 Gajoa-dong, Jinju 660-701 (Korea); Cho, Chong-Hyun [School of Mechanical and Aerospace Engineering, Gyeongsang National University, 900 Gajoa-dong, Jinju 660-701 (Korea); Kim, Chaesil [Department of Mechanical Engineering, Changwon National University, 9 Sarim-dong, Changwon 641-773 (Korea)

2008-09-15T23:59:59.000Z

412

Advanced Electric Systems and Aerodynamics for Efficiency Improvements in Heavy Duty Trucks  

SciTech Connect (OSTI)

The Advanced Electric Systems and Aerodynamics for Efficiency Improvements in Heavy Duty Trucks program (DE-FC26-04NT42189), commonly referred to as the AES program, focused on areas that will primarily benefit fuel economy and improve heat rejection while driving over the road. The AES program objectives were to: (1) Analyze, design, build, and test a cooling system that provided a minimum of 10 percent greater heat rejection in the same frontal area with no increase in parasitic fan load. (2) Realize fuel savings with advanced power management and acceleration assist by utilizing an integrated starter/generator (ISG) and energy storage devices. (3) Quantify the effect of aerodynamic drag due to the frontal shape mandated by the area required for the cooling system. The program effort consisted of modeling and designing components for optimum fuel efficiency, completing fabrication of necessary components, integrating these components into the chassis test bed, completing controls programming, and performance testing the system both on a chassis dynamometer and on the road. Emission control measures for heavy-duty engines have resulted in increased engine heat loads, thus introducing added parasitic engine cooling loads. Truck electrification, in the form of thermal management, offers technological solutions to mitigate or even neutralize the effects of this trend. Thermal control offers opportunities to avoid increases in cooling system frontal area and forestall reduced fuel economy brought about by additional aerodynamic vehicle drag. This project explored such thermal concepts by installing a 2007 engine that is compliant with current regulations and bears additional heat rejection associated with meeting these regulations. This newer engine replaced the 2002 engine from a previous project that generated less heat rejection. Advanced power management, utilizing a continuously optimized and controlled power flow between electric components, can offer additional fuel economy benefits to the heavy-duty trucking industry. Control software for power management brings added value to the power distribution and energy storage architecture on board a truck with electric accessories and an ISG. The research team has built upon a previous truck electrification project, formally, 'Parasitic Energy Loss Reduction and Enabling Technologies for Class 7/8 Trucks', DE-FC04-2000AL6701, where the fundamental concept of electrically-driven accessories replacing belt/gear-driven accessories was demonstrated on a Kenworth T2000 truck chassis. The electrical accessories, shown in Figure 1, were controlled to provide 'flow on demand' variable-speed operation and reduced parasitic engine loads for increased fuel economy. These accessories also provided solutions for main engine idle reduction in long haul trucks. The components and systems of the current project have been integrated into the same Kenworth T2000 truck platform. Reducing parasitic engine loading by decoupling accessory loads from the engine and driving them electrically has been a central concept of this project. Belt or gear-driven engine accessories, such as water pump, air conditioning compressor, or air compressor, are necessarily tied to the engine speed dictated by the current vehicle operating conditions. These conventional accessory pumps are sized to provide adequate flow or pressure at low idle or peak torque speeds, resulting in excess flow or pressure at cruising or rated speeds. The excess flow is diverted through a pressure-minimizing device such as a relief valve thereby expending energy to drive unnecessary and inefficient pump operation. This inefficiency causes an increased parasitic load to the engine, which leads to a loss of usable output power and decreased fuel economy. Controlling variable-speed electric motors to provide only the required flow or pressure of a particular accessory system can yield significant increases in fuel economy for a commercial vehicle. Motor loads at relatively high power levels (1-5 kW, or higher) can be efficiently provided

Larry Slone; Jeffrey Birkel

2007-10-31T23:59:59.000Z

413

Putting policy in drive : coordinating measures to reduce fuel use and greenhouse gas emissions from U.S. light-duty vehicles  

E-Print Network [OSTI]

The challenges of energy security and climate change have prompted efforts to reduce fuel use and greenhouse gas emissions in light-duty vehicles within the United States. Failures in the market for lower rates of fuel ...

Evans, Christopher W. (Christopher William)

2008-01-01T23:59:59.000Z

414

Materials-Enabled High-Efficiency (MEHE) Heavy-Duty Diesel Engines  

SciTech Connect (OSTI)

The purpose of this Cooperative Research and Development Agreement (CRADA) between UTBattelle, Inc. and Caterpillar, Inc. was to improve diesel engine efficiency by incorporating advanced materials to enable higher combustion pressures and temperatures necessary for improved combustion. The project scope also included novel materials for use in advanced components and designs associated with waste-heat recovery and other concepts for improved thermal efficiency. Caterpillar initially provided ORNL with a 2004 Tier 2 C15 ACERT diesel engine (designed for on-highway use) and two 600 hp motoring dynamometers. The first year of the CRADA effort was focused on establishing a heavy-duty experimental engine research cell. First year activities included procuring, installing and commissioning the cell infrastructure. Infrastructure components consisted of intake air handling system, water tower, exhaust handling system, and cell air conditioning. Other necessary infrastructure items included the fuel delivery system and bottled gas handling to support the analytical instrumentation. The second year of the CRADA focused on commissioning the dynamometer system to enable engine experimentation. In addition to the requirements associated with the dynamometer controller, the electrical system needed a power factor correction system to maintain continuity with the electrical grid. During the second year the engine was instrumented and baseline operated to confirm performance and commission the dynamometer. The engine performance was mapped and modeled according to requirements provided by Caterpillar. This activity was further supported by a Work-for-Others project from Caterpillar to evaluate a proprietary modeling system. A second Work-for-Others activity was performed to evaluate a novel turbocharger design. This project was highly successful and may lead to new turbocharger designs for Caterpillar heavy-duty diesel engines. During the third (and final) year of the CRADA, a novel valve material was evaluated to assess high temperature performance and durability. A series of prototype valves, composed of a unique nickel-alloy was placed in the engine head. The engine was aggressively operated using a transient test cycle for 200 hours. The valve recession was periodically measured to determine valve performance. Upon completion of the test the valves were removed and returned to Caterpillar for additional assessment. Industrial in-kind support was available throughout the project period. Review of the status and research results were carried out on a regular basis (meetings and telecons) which included direction for future work activities. A significant portion of the industrial support was in the form of information exchange and technical consultation.

Kass, M.; Veliz, M. (Caterpillar, Inc.) [Caterpillar, Inc.

2011-09-30T23:59:59.000Z

415

Comparative urban drive cycle simulations of light-duty hybrid vehicles with gasoline or diesel engines and emissions controls  

SciTech Connect (OSTI)

Electric hybridization is a very effective approach for reducing fuel consumption in light-duty vehicles. Lean combustion engines (including diesels) have also been shown to be significantly more fuel efficient than stoichiometric gasoline engines. Ideally, the combination of these two technologies would result in even more fuel efficient vehicles. However, one major barrier to achieving this goal is the implementation of lean-exhaust aftertreatment that can meet increasingly stringent emissions regulations without heavily penalizing fuel efficiency. We summarize results from comparative simulations of hybrid electric vehicles with either stoichiometric gasoline or diesel engines that include state-of-the-art aftertreatment emissions controls for both stoichiometric and lean exhaust. Fuel consumption and emissions for comparable gasoline and diesel light-duty hybrid electric vehicles were compared over a standard urban drive cycle and potential benefits for utilizing diesel hybrids were identified. Technical barriers and opportunities for improving the efficiency of diesel hybrids were identified.

Gao, Zhiming [ORNL] [ORNL; Daw, C Stuart [ORNL] [ORNL; Smith, David E [ORNL] [ORNL

2013-01-01T23:59:59.000Z

416

Future Potential of Hybrid and Diesel Powertrains in the U.S. Light-duty Vehicle Market  

SciTech Connect (OSTI)

Diesel and hybrid technologies each have the potential to increase light-duty vehicle fuel economy by a third or more without loss of performance, yet these technologies have typically been excluded from technical assessments of fuel economy potential on the grounds that hybrids are too expensive and diesels cannot meet Tier 2 emissions standards. Recently, hybrid costs have come down and the few hybrid makes available are selling well. Diesels have made great strides in reducing particulate and nitrogen oxide emissions, and are likely though not certain to meet future standards. In light of these developments, this study takes a detailed look at the market potential of these two powertrain technologies and their possible impacts on light-duty vehicle fuel economy. A nested multinomial logit model of vehicle choice was calibrated to 2002 model year sales of 930 makes, models and engine-transmission configurations. Based on an assessment of the status and outlook for the two technologies, market shares were predicted for 2008, 2012 and beyond, assuming no additional increase in fuel economy standards or other new policy initiatives. Current tax incentives for hybrids are assumed to be phased out by 2008. Given announced and likely introductions by 2008, hybrids could capture 4-7% and diesels 2-4% of the light-duty market. Based on our best guesses for further introductions, these shares could increase to 10-15% for hybrids and 4-7% for diesels by 2012. The resulting impacts on fleet average fuel economy would be about +2% in 2008 and +4% in 2012. If diesels and hybrids were widely available across vehicle classes, makes, and models, they could capture 40% or more of the light-duty vehicle market.

Greene, D.L.

2004-08-23T23:59:59.000Z

417

Investigating potential light-duty efficiency improvements through simulation of turbo-compounding and waste-heat recovery systems  

SciTech Connect (OSTI)

Modern diesel engines used in light-duty transportation applications have peak brake thermal efficiencies in the range of 40-42% for high-load operation with substantially lower efficiencies at realistic road-load conditions. Thermodynamic energy and exergy analysis reveals that the largest losses from these engines are due to combustion irreversibility and heat loss to the coolant, through the exhaust, and by direct convection and radiation to the environment. Substantial improvement in overall engine efficiency requires reducing or recovering these losses. Unfortunately, much of the heat transfer either occurs at relatively low temperatures resulting in large entropy generation (such as in the air-charge cooler), is transferred to low-exergy flow streams (such as the oil and engine coolant), or is radiated or convected directly to the environment. While there are significant opportunities for recovery from the exhaust and EGR cooler for heavy-duty applications, achieving similar benefits for light-duty applications is complicated by transient, low-load operation at typical driving conditions and competition with the turbocharger and aftertreatment system for the limited thermal resources. We have developed an organic Rankine cycle model using GT-Suite to investigate the potential for efficiency improvement through waste-heat recovery from the exhaust and EGR cooler of a light-duty diesel engine. The model is used to examine the effects of efficiency-improvement strategies such as cylinder deactivation, use of advanced materials and improved insulation to limit ambient heat loss, and turbo-compounding on the steady-state performance of the ORC system and the availability of thermal energy for downstream aftertreatment systems. Results from transient drive-cycle simulations are also presented, and we discuss strategies to address operational difficulties associated with transient drive cycles and balancing the thermal requirements of waste-heat recovery, turbocharging or turbo-compounding, and exhaust aftertreatment.

Edwards, Kevin Dean [ORNL; Wagner, Robert M [ORNL; Briggs, Thomas E [ORNL

2010-01-01T23:59:59.000Z

418

Heavy duty insulator assemblies for 500-kV bulk power transmission line with large diameter octagonalbundled conductor  

SciTech Connect (OSTI)

This paper describes the design procedure and the results of field tests on mechanical performances of insulator assemblies newly developed to support octagonal-bundled conductors for 500-kV bulk power transmission. Taking account of conductor-motion-induced peak tensile load, fatigue, torsional torque and others, a successful design has been achieved in two prototype assemblies for such heavy mechanical duties as encountered during conductor galloping or swing. This has been proved throughout three years of the field tests.

Tsujimoto, K.; Hayase, I.; Hirai, J.; Inove, M.; Naito, K.; Yukino, T.

1982-11-01T23:59:59.000Z

419

Pink Root Disease of Onions and Its Control in Texas.  

E-Print Network [OSTI]

plant growth, and it does not develop pink root where the soil is sterilized with formaldehyde. But in the check poti where the soil was not sterilized, pink root was present on manly of the seedlings. Tliis proved definitelv that the trace of alkali... ~culation cons~sted ~n i ;arlum No. June 15***. ................ ts made in Aug. 10, 2 partly decayed by Aspergil lu s niger, remainder healthy. Figure 2. (a) Green onion sets treated for various lengths of time in formaldehyde solution. (b) Tanks...

Taubenhaus, J. J. (Jacob Joseph); Mally, Frederick W. (Frederick William)

1921-01-01T23:59:59.000Z

420

The Influence of Moisture and Temperature on Cotton Root Rot.  

E-Print Network [OSTI]

. BAYLES, B. S., Superintendent J. PAUL LUSK, S. M., Plant Patholog Teachers in the School of Arnicultnre Carryine Coo~erative Projects on the Statit -- . G W ADRIANCE M S ~srociate~~rofessor of Horticulture S ' W 'BI~SING ~h D 'kro&sor of Entomology V... of the season. This initial moisture supply, together mith the additions during the growing season, permitted the continued development of root rot throughout the entire season. ,It the INFLUENCE OF MOISTURE AND TEMPERATURE ON COTTON ROOT ROT 9 end...

Taubenhaus, J. J. (Jacob Joseph); Dana, B. F. (Bliss F.)

1928-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "duty roots expander" 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

Model curriculum outline for Alternatively Fueled Vehicle (AFV) automotive technician training in light and medium duty CNG and LPG  

SciTech Connect (OSTI)

This model curriculum outline was developed using a turbo-DACUM (Developing a Curriculum) process which utilizes practicing experts to undertake a comprehensive job and task analysis. The job and task analysis serves to establish current baseline data accurately and to improve both the process and the product of the job through constant and continuous improvement of training. The DACUM process is based on the following assumptions: (1) Expert workers are the best source for task analysis. (2) Any occupation can be described effectively in terms of tasks. (3) All tasks imply knowledge, skills, and attitudes/values. A DACUM panel, comprised of six experienced and knowledgeable technicians who are presently working in the field, was given an orientation to the DACUM process. The panel then identified, verified, and sequenced all the necessary job duty areas and tasks. The broad duty categories were rated according to relative importance and assigned percentage ratings in priority order. The panel then rated every task for each of the duties on a scale of 1 to 3. A rating of 3 indicates an {open_quotes}essential{close_quotes} task, a rating of 2 indicates an {open_quotes}important{close_quotes} task, and a rating of 1 indicates a {open_quotes}desirable{close_quotes} task.

NONE

1997-04-01T23:59:59.000Z

422

Large Scale Duty Cycle (LSDC) Project: Tractive Energy Analysis Methodology and Results from Long-Haul Truck Drive Cycle Evaluations  

SciTech Connect (OSTI)

This report addresses the approach that will be used in the Large Scale Duty Cycle (LSDC) project to evaluate the fuel savings potential of various truck efficiency technologies. The methods and equations used for performing the tractive energy evaluations are presented and the calculation approach is described. Several representative results for individual duty cycle segments are presented to demonstrate the approach and the significance of this analysis for the project. The report is divided into four sections, including an initial brief overview of the LSDC project and its current status. In the second section of the report, the concepts that form the basis of the analysis are presented through a discussion of basic principles pertaining to tractive energy and the role of tractive energy in relation to other losses on the vehicle. In the third section, the approach used for the analysis is formalized and the equations used in the analysis are presented. In the fourth section, results from the analysis for a set of individual duty cycle measurements are presented and different types of drive cycles are discussed relative to the fuel savings potential that specific technologies could bring if these drive cycles were representative of the use of a given vehicle or trucking application. Additionally, the calculation of vehicle mass from measured torque and speed data is presented and the accuracy of the approach is demonstrated.

LaClair, Tim J [ORNL

2011-05-01T23:59:59.000Z

423

Overcoming the Range Limitation of Medium-Duty Battery Electric Vehicles through the use of Hydrogen Fuel-Cells  

SciTech Connect (OSTI)

Battery electric vehicles possess great potential for decreasing lifecycle costs in medium-duty applications, a market segment currently dominated by internal combustion technology. Characterized by frequent repetition of similar routes and daily return to a central depot, medium-duty vocations are well positioned to leverage the low operating costs of battery electric vehicles. Unfortunately, the range limitation of commercially available battery electric vehicles acts as a barrier to widespread adoption. This paper describes the National Renewable Energy Laboratory's collaboration with the U.S. Department of Energy and industry partners to analyze the use of small hydrogen fuel-cell stacks to extend the range of battery electric vehicles as a means of improving utility, and presumably, increasing market adoption. This analysis employs real-world vocational data and near-term economic assumptions to (1) identify optimal component configurations for minimizing lifecycle costs, (2) benchmark economic performance relative to both battery electric and conventional powertrains, and (3) understand how the optimal design and its competitiveness change with respect to duty cycle and economic climate. It is found that small fuel-cell power units provide extended range at significantly lower capital and lifecycle costs than additional battery capacity alone. And while fuel-cell range-extended vehicles are not deemed economically competitive with conventional vehicles given present-day economic conditions, this paper identifies potential future scenarios where cost equivalency is achieved.

Wood, E.; Wang, L.; Gonder, J.; Ulsh, M.

2013-10-01T23:59:59.000Z

424

Retail Infrastructure Costs Comparison for Hydrogen and Electricity for Light-Duty Vehicles: Preprint  

SciTech Connect (OSTI)

Both hydrogen and plug-in electric vehicles offer significant social benefits to enhance energy security and reduce criteria and greenhouse gas emissions from the transportation sector. However, the rollout of electric vehicle supply equipment (EVSE) and hydrogen retail stations (HRS) requires substantial investments with high risks due to many uncertainties. We compare retail infrastructure costs on a common basis - cost per mile, assuming fueling service to 10% of all light-duty vehicles in a typical 1.5 million person city in 2025. Our analysis considers three HRS sizes, four distinct types of EVSE and two distinct EVSE scenarios. EVSE station costs, including equipment and installation, are assumed to be 15% less than today's costs. We find that levelized retail capital costs per mile are essentially indistinguishable given the uncertainty and variability around input assumptions. Total fuel costs per mile for battery electric vehicle (BEV) and plug-in hybrid vehicle (PHEV) are, respectively, 21% lower and 13% lower than that for hydrogen fuel cell electric vehicle (FCEV) under the home-dominant scenario. Including fuel economies and vehicle costs makes FCEVs and BEVs comparable in terms of costs per mile, and PHEVs are about 10% less than FCEVs and BEVs. To account for geographic variability in energy prices and hydrogen delivery costs, we use the Scenario Evaluation, Regionalization and Analysis (SERA) model and confirm the aforementioned estimate of cost per mile, nationally averaged, but see a 15% variability in regional costs of FCEVs and a 5% variability in regional costs for BEVs.

Melaina, M.; Sun, Y.; Bush, B.

2014-08-01T23:59:59.000Z

425

Evaluation of fuel consumption potential of medium and heavy duty vehicles through modeling and simulation.  

SciTech Connect (OSTI)

The main objective of this report is to provide quantitative data to support the Committee in its task of establishing a report to support rulemaking on medium- and heavy-duty fuel efficiency improvement. In particular, it is of paramount importance for the Committee to base or illustrate their conclusions on established models and actual state-of-the art data. The simulations studies presented in the report have been defined and requested by the members of the National Academy committee to provide quantitative inputs to support their recommendations. As such, various technologies and usage scenarios were considered for several applications. One of the objective is to provide the results along with their associated assumptions (both vehicle and drive cycles), information generally missing from public discussions on literature search. Finally, the advantages and limitations of using simulation will be summarized. The study addresses several of the committee tasks, including: (1) Discussion of the implication of metric selection; (2) Assessing the impact of existing technologies on fuel consumption through energy balance analysis (both steady-state and standard cycles) as well as real world drive cycles; and (3) Impact of future technologies, both individually and collectively.

Delorme, A.; Karbowski, D.; Sharer, P.; Energy Systems

2010-03-31T23:59:59.000Z

426

Wear and wear mechanism simulation of heavy-duty engine intake valve and seat inserts  

SciTech Connect (OSTI)

A silicon-chromium alloy frequently used for heavy-duty diesel engine intake valves was tested against eight different insert materials with a valve seat wear simulator. Wear resistance of these combinations was ranked. For each test, the valve seat temperature was controlled at approximately 510 C, the number of cycles was 864,000 (or 24 h), and the test load was 17,640 N. The combination of the silicon-chromium valve against a cast iron insert produced in the least valve seat wear, whereas a cobalt-base alloy insert produced the highest valve seat wear. In the overall valve seat recession ranking, however, the combination of the silicon-chromium valve and an iron-base chromium-nickel alloy insert had the least total seat recession, whereas the silicon-chromium valve against cobalt-base alloy, cast iron, and nickel-base alloy inserts had significant seat recession. Hardness and microstructure compatibility of valve and insert materials are believed to be significant factors in reducing valve and insert wear. The test results indicate that the mechanisms of valve seat and insert wear are a complex combination of adhesion and plastic deformation. Adhesion was confirmed by material transfer, while plastic deformation was verified by shear strain (or radial flow) and abrasion. The oxide films formed during testing also played a significant role. The prevented direct metal-to-metal contact and reduced the coefficient of friction on seat surfaces, thereby reducing adhesive and deformation-controlled wear.

Wang, Y.S.; Narasimhan, S.; Larson, J.M.; Schaefer, S.K. [Eaton Corp., Marshall, MI (United States). Engine Components Operations] [Eaton Corp., Marshall, MI (United States). Engine Components Operations

1998-02-01T23:59:59.000Z

427

Reactivity Controlled Compression Ignition (RCCI) Combustion on a Multi-Cylinder Light-Duty Diesel Engine  

SciTech Connect (OSTI)

Reactivity controlled compression ignition is a low-temperature combustion technique that has been shown, both in computational fluid dynamics modeling and single-cylinder experiments, to obtain diesel-like efficiency or better with ultra-low nitrogen oxide and soot emissions, while operating primarily on gasoline-like fuels. This paper investigates reactivity controlled compression ignition operation on a four-cylinder light-duty diesel engine with production-viable hardware using conventional gasoline and diesel fuel. Experimental results are presented over a wide speed and load range using a systematic approach for achieving successful steady-state reactivity controlled compression ignition combustion. The results demonstrated diesel-like efficiency or better over the operating range explored with low engine-out nitrogen oxide and soot emissions. A peak brake thermal efficiency of 39.0% was demonstrated for 2600 r/min and 6.9 bar brake mean effective pressure with nitrogen oxide emissions reduced by an order of magnitude compared to conventional diesel combustion operation. Reactivity controlled compression ignition emissions and efficiency results are compared to conventional diesel combustion operation on the same engine.

Curran, Scott [ORNL; Hanson, Reed M [ORNL; Wagner, Robert M [ORNL

2012-01-01T23:59:59.000Z

428

Development of a Hybrid Compressor/Expander Module for Automotive Fuel Cell Applications  

SciTech Connect (OSTI)

In this program TIAX LLC conducted the development of an advanced technology compressor/expander for supplying compressed air to Proton Exchange Membrane (PEM) fuel cells in transportation applications. The overall objective of this program was to develop a hybrid compressor/expander module, based on both scroll and high-speed turbomachinery technologies, which will combine the strengths of each technology to create a concept with superior performance at minimal size and cost. The resulting system was expected to have efficiency and pressure delivery capability comparable to that of a scroll-only machine, at significantly reduced system size and weight when compared to scroll-only designs. Based on the results of detailed designs and analyses of the critical system elements, the Hybrid Compressor/Expander Module concept was projected to deliver significant improvements in weight, volume and manufacturing cost relative to previous generation systems.

McTaggart, Paul

2004-12-31T23:59:59.000Z

429

Influence of processing conditions on the morphology of expanded perlite/polypropylene composites  

SciTech Connect (OSTI)

Perlite is an oversaturated, volcanic, glassy rock, which has chemically bound water from 2 to 5 wt%. Upon heating, perlite can be expanded up to 20 times of its original volume. Important applications are in the field of building industry, in refrigeration engineering or the pharmaceutical industry. As mineral filler in polymers, expanded perlite can increase the thermal conductivity, the viscosity and the mechanical properties of polypropylene composites. But there are still many challenges that must be analyzed to reach the full potential of those composites. This research work focuses on the morphology of expanded perlite/polypropylene (PP) compounds and the interactions between filler and polymer. To achieve good performance a homogenous dispersion of the filler in the polymer matrix is needed because the enhancement of the material correlates strongly with the morphology of the composite. Therefore it is necessary to characterize the microstructure of these materials in order to establish adequate structure-process-property relationships. The expanded perlite/PP composites were compounded with a co-rotating twin screw extruder Theysohn TSK 30/40D. For producing the closed cell expanded perlite a new technology, the bublon process, was used. For the material characterization two particles sizes were chosen and the filler content was varied at 5, 10 and 15 wt%. For the analysis of the effects of the screw geometry, two setups have been chosen for the processing of the materials. The produced materials were analyzed by scanning electron microscope (SEM) and tensile testing. The results show a reinforcement effect of the filler and differences in the inner structure of expanded perlite and in the morphology.

Mattausch, H., E-mail: hannelore.mattausch@unileoben.ac.at, E-mail: stephan.laske@unileoben.ac.at; Laske, S., E-mail: hannelore.mattausch@unileoben.ac.at, E-mail: stephan.laske@unileoben.ac.at; Holzer, C., E-mail: clemens.holzer@unileoben.ac.at [Chair of Polymer Processing, Department of Polymer Engineering and Science, Montanuniversitaet Leoben (Austria); Cirar, K., E-mail: kristin.cirar@unileoben.ac.at, E-mail: helmut.flachberger@unileoben.ac.at; Flachberger, H., E-mail: kristin.cirar@unileoben.ac.at, E-mail: helmut.flachberger@unileoben.ac.at [Chair of Mineral Processing, Department Mineral Resources and Petroleum Engineering , Montanuniversitaet Leoben (Austria)

2014-05-15T23:59:59.000Z

430

Double-layer ion acceleration triggered by ion magnetization in expanding radiofrequency plasma sources  

SciTech Connect (OSTI)

Ion energy distribution functions downstream of the source exit in magnetically expanding low-pressure plasmas are experimentally investigated for four source tube diameters ranging from about 5 to 15 cm. The magnetic-field threshold corresponding to a transition from a simple expanding plasma to a double layer-containing plasma is observed to increase with a decrease in the source tube diameter. The results demonstrate that for the four geometries, the double layer and the accelerated ion beam form when the ion Larmour radius in the source becomes smaller than the source tube radius, i.e., when the ions become magnetized in the source tube.

Takahashi, Kazunori [Department of Electrical and Electronic Engineering, Iwate University, Morioka 020-8551 (Japan); Space Plasma, Power and Propulsion Group, Research School of Physics and Engineering, Australian National University, Canberra 0200 (Australia); Charles, Christine; Boswell, Rod W. [Space Plasma, Power and Propulsion Group, Research School of Physics and Engineering, Australian National University, Canberra 0200 (Australia); Fujiwara, Tamiya [Department of Electrical and Electronic Engineering, Iwate University, Morioka 020-8551 (Japan)

2010-10-04T23:59:59.000Z

431

83USDA Forest Service Gen. Tech. Rep. PSW-GTR-160. 1997. Woody Root Biomass of 40-to 90-  

E-Print Network [OSTI]

83USDA Forest Service Gen. Tech. Rep. PSW-GTR-160. 1997. Woody Root Biomass of 40- to 90- Year. Bledsoe2 Jerry Tecklin3 Abstract: This research examined biomass of blue oak (Quercus douglasii Hook root biomass outside the root ball. Root ball mass ranged from 7 to 184 kg, and estimated total root

Standiford, Richard B.

432

Original article Biomass of root and shoot systems  

E-Print Network [OSTI]

Original article Biomass of root and shoot systems of Quercus coccifera shrublands in Eastern Spain biomass of kermes oak shrublands (Quercus coccifera L.), an evergreen sclerophyllous species common- mass has been measured on 320 1-m2 plots. Total biomass varies with age and ranges between 0.4 (7

Paris-Sud XI, Université de

433

Groups in Mind: The Coalitional Roots o[War and  

E-Print Network [OSTI]

8 Groups in Mind: The Coalitional Roots o[War and Morality John Tooby and Leda Cosmides War, Coalitions, and the HUnlan Condition War is older than the human species. It is found in every region. There is no evidence of it having originated in one place, and spread by contact to others. War is reflected

Cosmides, Leda

434

Root Finding Methods 1 using pylab, numpy, sympy, and Sage  

E-Print Network [OSTI]

Software (MCS 507 L-13) Root Finding Methods 25 September 2013 2 / 45 #12;polynomials with ipython --pylab-15 -2.44249065e-15j, -2.22044605e-16 +0.00000000e+00j]) By default, all objects in ipython --pylab

Verschelde, Jan

435

Root responses of bermudagrass to mowing height and frequency  

E-Print Network [OSTI]

of root zone to be studied separately. Common bermudagrass (Cynodon dactylon [L.] Pers.) was used in a mowing height by frequency study, with mowing height treatments of 2.5 and 5.1 cm, and mowing frequencies of 2, 7, and 14 days. Tifgreen bermudagrass (C...

Hall, Mark Holman

1995-01-01T23:59:59.000Z

436

An Efficient SquareRoot Algorithm for BLAST Babak Hassibi  

E-Print Network [OSTI]

antennas, BLAST first decodes the ``strongest'' signal, then cancels the effect of this strongest transmitAn Efficient Square­Root Algorithm for BLAST Babak Hassibi Mathematics of Communications Research­Time (BLAST) is a scheme for transmitting information over a rich­scattering wireless environment using

Hassibi, Babak

437

In Situ Root System Architecture Extraction from Magnetic Resonance  

E-Print Network [OSTI]

of developing and adapting its RSA to environmental conditions. Although important progress has been achieved understood. This is mainly due to the opaque nature of the soil which prevents from direct observation" experiments for testing and validating the impact of specific root traits (Dunbabin et al., 2002; Doussan et

Behnke, Sven

438

Morphology Height, RCD, usability --<1 Root:shoot ratio --4  

E-Print Network [OSTI]

, seeking to detect cold storage and other forms of damage to plants, to a set of techniques to assess to the planting site from cold storage on four separate occasions during the planting season. Plants with REL: · assessing height and root collar diameter (RCD) (compared with an industry standard BS 3936 part 4 (BSI

439

INDECOMPOSABLE REPRESENTATIONS FOR REAL ROOTS OF A WILD QUIVER  

E-Print Network [OSTI]

INDECOMPOSABLE REPRESENTATIONS FOR REAL ROOTS OF A WILD QUIVER BERNT TORE JENSEN AND XIUPING SU wild quiver. We define operations which act on representations of this quiver, and using representation and the generic representation coincide. We will see that for wild quivers, the situation can

Su, Xiuping

440

Original article The study of tree fine root distribution  

E-Print Network [OSTI]

distribution and growth were studied in a natural oak-birch coppice, by combining the trench and observation. Tree - root - distribution - profile - spatial distribution - coppice - birch - oak Résumé &mdash to applying this method to a coppicing expe- riment (Bedeneau and Auclair, in prepara- tion). Materials

Paris-Sud XI, Université de

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


441

Truck Essential Power Systems Efficiency Improvements for Medium-Duty Trucks  

SciTech Connect (OSTI)

With a variety of hybrid vehicles available in the passenger car market, electric technologies and components of that scale are becoming readily available. Commercial vehicle segments have lagged behind passenger car markets, leaving opportunities for component and system development. Escalating fuel prices impact all markets and provide motivation for OEMs, suppliers, customers, and end-users to seek new techniques and technologies to deliver reduced fuel consumption. The research presented here specifically targets the medium-duty (MD), Class 4-7, truck market with technologies aimed at reducing fuel consumption. These technologies could facilitate not only idle, but also parasitic load reductions. The development efforts here build upon the success of the More Electric Truck (MET) demonstration program at Caterpillar Inc. Employing a variety of electric accessories, the MET demonstrated the improvement seen with such technologies on a Class 8 truck. The Truck Essential Power Systems Efficiency Improvements for Medium-Duty Trucks (TEPS) team scaled the concepts and successes of MET to a MD chassis. The team designed an integrated starter/generator (ISG) package and energy storage system (ESS), explored ways to replace belt and gear-driven accessory systems, and developed supervisory control algorithms to direct the usage of the generated electricity and system behavior on the vehicle. All of these systems needed to fit within the footprint of a MD vehicle and be compatible with the existing conventional systems to the largest extent possible. The overall goal of this effort was to demonstrate a reduction in fuel consumption across the drive cycle, including during idle periods, through truck electrification. Furthermore, the team sought to evaluate the benefits of charging the energy storage system during vehicle braking. The vehicle features an array of electric accessories facilitating on-demand, variable actuation. Removal of these accessories from the belt or geartrain of the engine yields efficiency improvements for the engine while freeing those accessories to perform at their individual peak efficiencies to meet instantaneous demand. The net result is a systems approach to fuel usage optimization. Unique control algorithms were specifically developed to capitalize on the flexibility afforded by the TEPS architecture. Moreover, the TEPS truck technology mixture exhibits a means to supplant current accessory power sources such as on-board or trailer-mounted gasoline-powered generators or air compressors. Such functionality further enhances the value of the electric systems beyond the fuel savings alone. To demonstrate the fuel economy improvement wrought via the TEPS components, vehicle fuel economy testing was performed on the nearly stock (baseline) truck and the TEPS truck. Table 1 illustrates the fuel economy gains produced by the TEPS truck electrification. While the fuel economy results shown in Table 1 do reflect specific test conditions, they show that electrification of accessory hardware can yield significant fuel savings. In this case, the savings equated to a 15 percent reduction in fuel consumption during controlled on-road testing. Truck electrification allows engine shutdown during idle conditions as well as independent on-demand actuation of accessory systems. In some cases, independent actuation may even include lack of operation, a feature not always present in mechanically driven components. This combination of attributes allows significant improvements in system efficiency and the fuel economy improvements demonstrated by the TEPS team.

Larry Slone; Jeffery Birkel

2007-12-31T23:59:59.000Z

442

HAMILTON DECOMPOSITIONS OF REGULAR EXPANDERS: A PROOF OF KELLY'S CONJECTURE FOR LARGE  

E-Print Network [OSTI]

HAMILTON DECOMPOSITIONS OF REGULAR EXPANDERS: A PROOF OF KELLY'S CONJECTURE FOR LARGE TOURNAMENTS DANIELA K¨UHN AND DERYK OSTHUS Abstract. A long-standing conjecture of Kelly states that every regular as well as Alon, Gutin and Krivelevich. 1. Introduction 1.1. Kelly's conjecture. A graph or digraph G has

Kühn, Daniela

443

Exergy analysis of transcritical carbon dioxide refrigeration cycle with an expander  

E-Print Network [OSTI]

Exergy analysis of transcritical carbon dioxide refrigeration cycle with an expander Jun Lan Yang, Yi Tai Ma*, Min Xia Li, Hai Qing Guan Thermal Energy Research Institute of Tianjin University, 300072 is performed for the transcritical carbon dioxide refrigeration cycles with a throttling valve

Bahrami, Majid

444

Broiler production in Texas has expanded at an annual rate of 7 percent since 1986 with  

E-Print Network [OSTI]

Broiler production in Texas has expanded at an annual rate of 7 percent since 1986 with 371 million in energy relative to grain or high quality forage. If used as a protein and mineral supplement in a feed litter feeding in the eastern half of Texas. Feed Quality Broiler Litter Not all broiler litter

Mukhtar, Saqib

445

ACARYOCHLORIS EXPLAINING THE RIDDLE OF CHLOROPHYLL D IN RED ALGAE AND EXPANDING PAR FOR OXYGENIC PHOTOSYNTHESIS  

E-Print Network [OSTI]

ACARYOCHLORIS ­ EXPLAINING THE RIDDLE OF CHLOROPHYLL D IN RED ALGAE AND EXPANDING PAR FOR OXYGENIC strain is shown to live epi- phytically on the red alga Gelidium caulacantheum, which itself is harvested by the red alga. Availability of far red light, however, is relatively unaffected by DOM or red

Oregon, University of

446

Expanding the Paradigms of Plant Pathogen Life History and Evolution of Parasitic Fitness beyond Agricultural  

E-Print Network [OSTI]

research in medical epide- miology has elucidated the impact of pathogen ecology in environmental reserOpinion Expanding the Paradigms of Plant Pathogen Life History and Evolution of Parasitic Fitness concepts of the life history of plant pathogens and the drivers of pathogen evolution beyond the current

Weiblen, George D

447

FINDING HAMILTON CYCLES IN ROBUSTLY EXPANDING DEMETRES CHRISTOFIDES, PETER KEEVASH, DANIELA KUHN AND DERYK OSTHUS  

E-Print Network [OSTI]

FINDING HAMILTON CYCLES IN ROBUSTLY EXPANDING DIGRAPHS DEMETRES CHRISTOFIDES, PETER KEEVASH, DANIELA K¨UHN AND DERYK OSTHUS Abstract. We provide an NC algorithm for finding Hamilton cycles for the existence of Hamilton cycles in terms of the degree sequence and thus we provide algorithmic proofs of (i

Kühn, Daniela

448

New Catalyst Might Expand Bio-Ethanol's Possible uses: fuel additives, rubber and solvents  

E-Print Network [OSTI]

New Catalyst Might Expand Bio-Ethanol's Usefulness Possible uses: fuel additives, rubber and solvents RESULTS To turn bio-ethanol into chemicals that are typically made from petroleum, re- searchers the presence of water, allowing producers to use dilute and cheaper bio-ethanol rather than having to purify

449

Cite this: Lab Chip, 2013, 13, 1457 Unconventional microfluidics: expanding the discipline  

E-Print Network [OSTI]

Cite this: Lab Chip, 2013, 13, 1457 Unconventional microfluidics: expanding the discipline DOI: 10*a Since its inception, the discipline of microfluidics has been harnessed for innovations-effect of stereotyping microfluidics as a platform for medical diagnostics and miniaturized lab processes

450

Expanding Laser Beams: Many times when a laser is used in an optical system,  

E-Print Network [OSTI]

L- L Project#3 Expanding Laser Beams: Many times when a laser is used in an optical system, there is a requirement for either a larger beam or a beam that has a small divergence (doesn't change size over the length of the experiment). In some casesthe size of the beam becomes critical, for example;when measuring

Yu, Jaehoon

451

Expanded solid matter: Two-dimensional LJ modeling F.H. Stillinger *, D.K. Stillinger  

E-Print Network [OSTI]

and technological importance of expanded solid forms of matter such as aerogels indicate the need for related. Keywords: Aerogels; Lennard-Jones model; Inherent structures; Fractal clusters; Burgers vector solid matter is provided by the family of silica-based aerogels (``solid smoke'') that can have mass

Stillinger, Frank

452

Origins and accumulation of organic matter in expanded Albian to Santonian black shale sequences on the  

E-Print Network [OSTI]

Origins and accumulation of organic matter in expanded Albian to Santonian black shale sequences laminated, Cenoma- nian­Santonian black shale sequences contain between 2% and 15% organic carbon about the depositional conditions leading to the black shale accumulations. The low d13 Corg values

Gilli, Adrian

453

BFA IN STUDIO ART Area of Emphasis Suggested 4 Year Curriculum Art X: Expanded Forms  

E-Print Network [OSTI]

3000-level Art X M 3 ARST 2810 Hypermedia M* 3 Area ARST 3000-level Art X M 3 ARST 2000-level ElectiveBFA IN STUDIO ART Area of Emphasis Suggested 4 Year Curriculum Art X: Expanded Forms revised 09/11 SECOND YEAR First semester Area Hours Must Second semester Area Hours ARST 2800 Art & Tech VI 3 Pass ARST

Arnold, Jonathan

454

Measuring the plasma density of a ferroelectric plasma source in an expanding plasma  

E-Print Network [OSTI]

Measuring the plasma density of a ferroelectric plasma source in an expanding plasma A. Dunaevsky and N. J. Fisch Princeton Plasma Physics Laboratory, Princeton University, P.O. Box 451, Princeton, New temperature at the surface of a ferroelectric plasma source were deduced from floating probe measurements

455

Solid Oxide Fuel Cell Development for Auxiliary Power in Heavy Duty Vehicle Applications  

SciTech Connect (OSTI)

Changing economic and environmental needs of the trucking industry is driving the use of auxiliary power unit (APU) technology for over the road haul trucks. The trucking industry in the United States remains the key to the economy of the nation and one of the major changes affecting the trucking industry is the reduction of engine idling. Delphi Automotive Systems, LLC (Delphi) teamed with heavy-duty truck Original Equipment Manufacturers (OEMs) PACCAR Incorporated (PACCAR), and Volvo Trucks North America (VTNA) to define system level requirements and develop an SOFC based APU. The project defines system level requirements, and subsequently designs and implements an optimized system architecture using an SOFC APU to demonstrate and validate that the APU will meet system level goals. The primary focus is on APUs in the range of 3-5 kW for truck idling reduction. Fuels utilized were derived from low-sulfur diesel fuel. Key areas of study and development included sulfur remediation with reformer operation; stack sensitivity testing; testing of catalyst carbon plugging and combustion start plugging; system pre-combustion; and overall system and electrical integration. This development, once fully implemented and commercialized, has the potential to significantly reduce the fuel idling Class 7/8 trucks consume. In addition, the significant amounts of NOx, CO2 and PM that are produced under these engine idling conditions will be virtually eliminated, inclusive of the noise pollution. The environmental impact will be significant with the added benefit of fuel savings and payback for the vehicle operators / owners.

Daniel T. Hennessy

2010-06-15T23:59:59.000Z

456

T-671: Red Hat system-config-firewall Lets Local Users Gain Root...  

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

1: Red Hat system-config-firewall Lets Local Users Gain Root Privileges T-671: Red Hat system-config-firewall Lets Local Users Gain Root Privileges July 19, 2011 - 2:42pm Addthis...

457

E-Print Network 3.0 - atp inhibits root Sample Search Results  

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

root Search Powered by Explorit Topic List Advanced Search Sample search results for: atp inhibits root Page: << < 1 2 3 4 5 > >> 1 This article was originally published in the...

458

High Resolution Imaging of in situ Root Hair Development to Assess Oilseed Species Responses to Water Stress  

E-Print Network [OSTI]

T. , S. Gilroy. 2003. Root hair development. J Plant GrowthSchiefelbein. 2002. Root hairs. In C.R. Somerville and E.M.MD. Hofer, R. 1996. Root hairs. In Y. Waisel and A. Eshel (

Hammac, Warren Ashley; Pan, William; Bolton, Ronald; Koenig, Richard

2009-01-01T23:59:59.000Z

459

E-Print Network 3.0 - altering root system Sample Search Results  

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

alterations ... Source: Brix, Hans - Biologisk Institut, Aarhus Universitet Collection: Environmental Sciences and Ecology 3 ROOT FUNCTIONAL ARCHITECTURE: A FRAMEWORK FOR...

460

Spatial association between the locations of roots and water flow paths in highly structured soil  

E-Print Network [OSTI]

the smallest (> 1 mm diameter) roots were not randomly distributed. The results did show that the larger roots were not randomly distributed, and evidence pointed to a clustering of roots in and around the dye stained flow paths. However, the data fell short...

Gardiner, Nathan Thomas

2005-02-17T23:59:59.000Z

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


461

Runoff irrigation of crops with contrasting root and shoot development in northern Kenya: water  

E-Print Network [OSTI]

after a heavy storm is guided into levelled basins. The standing water is allowed to infiltrate deep, the root distribution may change according to the water supply; little is known about water and rootRunoff irrigation of crops with contrasting root and shoot development in northern Kenya: water

Lehmann, Johannes

462

Macdonald's Constant Term Conjectures For Exceptional Root Systems* Frank G. Garvan and Gaston Gonnet  

E-Print Network [OSTI]

Macdonald's Constant Term Conjectures For Exceptional Root Systems* A Frank G. Garvan and Gaston Gonnet bstract: We announce proofs of Macdonald's constant term conjectures for the affine root systems result mply that Macdonald's conjectures are true in form for any root system, and the complete truth

Garvan, Frank

463

A PROOF OF THE MACDONALD-MORRIS ROOT SYSTEM CONJECTURE FOR F4  

E-Print Network [OSTI]

A PROOF OF THE MACDONALD-MORRIS ROOT SYSTEM CONJECTURE FOR F4 F.G. GARVANy Abstract. We give a proof of the Macdonald-Morris root system conjecture f* *or. The Macdonald-Morris root system conjecture for F4 is Y

Garvan, Frank

464

A PROOF OF THE MACDONALD-MORRIS ROOT SYSTEM CONJECTURE FOR F4  

E-Print Network [OSTI]

A PROOF OF THE MACDONALD-MORRIS ROOT SYSTEM CONJECTURE FOR F4 F.G. GARVAN Abstract. We give a proof of the Macdonald-Morris root system conjecture for F4 that draws on ideas from Zeilberger's recent proof of the G 2. The Macdonald-Morris root system conjecture for F4 is (1.1) C.T. 1i

Garvan, Frank

465

Joint channel estimation and decoding of root LDPC codes in block-fading channels  

E-Print Network [OSTI]

Joint channel estimation and decoding of root LDPC codes in block-fading channels Iryna Andriyanova receivers for joint decoding and channel-state estimation for transmission on block-fading chan- nels of root-LDPC-coded signals. Root-LDPC codes are known to be most performant codes for block

Andriyanova, Iryna

466

Gas Composition and Oxygen Supply in the Root Environment of Substrates in Closed Hydroponic Systems  

E-Print Network [OSTI]

299 Gas Composition and Oxygen Supply in the Root Environment of Substrates in Closed Hydroponic Abstract The objective of this study was to get more information about the root zone, mainly the gas and ethylene, a gas sampling system was used to get gas samples from the root zone. CO2 gas samples of 20 ml

Lieth, J. Heinrich

467

Nitrate-responsive miR393/AFB3 regulatory module controls root system architecture in  

E-Print Network [OSTI]

environmental conditions is the modulation of root system architecture (RSA) in response to nitrate supplyNitrate-responsive miR393/AFB3 regulatory module controls root system architecture in ArabidopsisR393/AFB3 is a unique N- responsive module that controls root system architecture in response

Green, Pamela

468

Final report for measurement of primary particulate matter emissions from light-duty motor vehicles  

SciTech Connect (OSTI)

This report describes the results of a particulate emissions study conducted at the University of California, Riverside, College of Engineering-Center for Environmental Research and Technology (CE-CERT) from September of 1996 to August of 1997. The goal of this program was to expand the database of particulate emissions measurements from motor vehicles to include larger numbers of representative in-use vehicles. This work was co-sponsored by the Coordinating Research Council (CRC), the South Coast Air Quality Management District (SCAQMD), and the National Renewable Energy Laboratory (NREL) and was part of a larger study of particulate emissions being conducted in several states under sponsorship by CRC. For this work, FTP particulate mass emission rates were determined for gasoline and diesel vehicles, along with the fractions of particulates below 2.5 and 10 microns aerodynamic diameter. A total of 129 gasoline-fueled vehicles and 19 diesel-fueled vehicles were tested as part of the program.

Norbeck, J. M.; Durbin, T. D.; Truex, T. J.

1998-12-31T23:59:59.000Z

469

Blazar Duty-Cycle at gamma-ray Frequecies: Constraints from Extragalactic Background Radiation and Prospects for AGILE and GLAST  

E-Print Network [OSTI]

We take into account the constraints from the observed extragalactic gamma-ray background to estimate the maximum duty cycle allowed for a selected sample of WMAP Blazars, in order to be detectable by AGILE and GLAST gamma-ray experiments. For the nominal sensitivity values of both instruments, we identify a subset of sources which can in principle be detectable also in a steady state without over-predicting the extragalactic background. This work is based on the results of a recently derived Blazar radio LogN-LogS obtained by combining several multi-frequency surveys.

Pittori, Carlotta; Colafrancesco, Sergio; Giommi, Paolo

2007-01-01T23:59:59.000Z

470

Blazar Duty-Cycle at gamma-ray Frequecies: Constraints from Extragalactic Background Radiation and Prospects for AGILE and GLAST  

E-Print Network [OSTI]

We take into account the constraints from the observed extragalactic gamma-ray background to estimate the maximum duty cycle allowed for a selected sample of WMAP Blazars, in order to be detectable by AGILE and GLAST gamma-ray experiments. For the nominal sensitivity values of both instruments, we identify a subset of sources which can in principle be detectable also in a steady state without over-predicting the extragalactic background. This work is based on the results of a recently derived Blazar radio LogN-LogS obtained by combining several multi-frequency surveys.

Carlotta Pittori; Elisabetta Cavazzuti; Sergio Colafrancesco; Paolo Giommi

2007-05-04T23:59:59.000Z

471

Engineering internship at Brown & Root, Incorporated: a report  

E-Print Network [OSTI]

A Report by RANDALL JOE GANNAWAY Submitted to the College of Engineering Texas A&M University in partial fulfillment of the requirement for the degree DOCTOR OF ENGINEERING December 1977 Major Subjects Industrial Engineering A Report... e of Engineering) W. Smith (Member) December 1977 A Report on an Engineering Internship at Brown & Root, Incorporated. (December 1977) Randall Joe Gannaway, B.S., Texas A&M University; M.E., Texas A&M University Co-Chairmen of Advisory...

Gannaway, Randall Joe, 1952-

2013-03-13T23:59:59.000Z

472

Development of a General-purpose Expandable Arm for a Small Mobile Robot Tatsuya HASHIMOTO, University of Tsukuba  

E-Print Network [OSTI]

Development of a General-purpose Expandable Arm for a Small Mobile Robot ( ) ( ) ( ) ( ) Tatsuya which enables a mobile robot to push or pull objects. The mobile robot arm can manipulate objects and buttons at the end-effector. Key Words: Mobile robot, Expandable sliding arm, Linear motion guide

Ohya, Akihisa

473

Root interaction between Bromud tectorum and Poa pratensis: a three-dimensional analysis  

SciTech Connect (OSTI)

The spatial distribution of roots of two alien grasses, Bromus tectorum and Poa pratensis, grown singly and in a mixture, was examined using a double-labelling radioisotope technique. Interactions between the root systems of these plants led to a restricted B. tectorum rooting volume in P. pratensis neighborhoods greater than or equal to30-d-old. The roots of B. tectorum failed to develop laterally. The altered B. tectorum root systems may contribute to its inability to persist in established P. pratensis swards.

Bookman, P.A.; Mack, R.N.

1982-06-01T23:59:59.000Z

474

The fragmentation of expanding shells I: Limitations of the thin--shell approximation  

E-Print Network [OSTI]

We investigate the gravitational fragmentation of expanding shells in the context of the linear thin--shell analysis. We make use of two very different numerical schemes; the FLASH Adaptive Mesh Refinement code and a version of the Benz Smoothed Particle Hydrodynamics code. We find that the agreement between the two codes is excellent. We use our numerical results to test the thin--shell approximation and we find that the external pressure applied to the shell has a strong effect on the fragmentation process. In cases where shells are not pressure--confined, the shells thicken as they expand and hydrodynamic flows perpendicular to the plane of the shell suppress fragmentation at short wavelengths. If the shells are pressure--confined internally and externally, so that their thickness remains approximately constant during their expansion, the agreement with the analytical solution is better.

Dale, James E; Whitworth, Anthony; Palous, Jan

2009-01-01T23:59:59.000Z

475

Chaoticity parameter $?$ in two-pion interferometry in an expanding boson gas model  

E-Print Network [OSTI]

We investigate the chaoticity parameter $\\lambda$ in two-pion interferometry in an expanding boson gas model. The degree of Bose-Einstein condensation of identical pions, density distributions, and Hanbury-Brown-Twiss (HBT) correlation functions are calculated for the expanding gas within the mean-field description with a harmonic oscillator potential. The results indicate that a sources with thousands of identical pions may exhibit a degree of Bose-Einstein condensation at the temperatures during the hadronic phase in relativistic heavy-ion collisions. This finite condensation may decrease the chaoticity parameter $\\lambda$ in the two-pion interferometry measurements at low pion pair momenta, but influence only slightly the $\\lambda$ value at high pion pair momentum.

Jie Liu; Peng Ru; Wei-Ning Zhang; Cheuk-Yin Wong

2014-10-16T23:59:59.000Z

476

Axial force imparted by a current-free magnetically expanding plasma  

SciTech Connect (OSTI)

The axial force imparted from a magnetically expanding, current-free, radiofrequency plasma is directly measured. For an argon gas flow rate of 25 sccm and an effective rf input power of {approx}800W, a maximum force of {approx}6mN is obtained; {approx}3mN of which is transmitted via the expanding magnetic field. The measured forces are reasonably compared with a simple fluid model associated with the measured electron pressure. The model suggests that the total force is the sum of an electron pressure inside the source and a Lorentz force due to the electron diamagnetic drift current and the applied radial magnetic field. It is shown that the Lorentz force is greatest near the magnetic nozzle surface where the radial pressure gradient is largest.

Takahashi, Kazunori [Space Plasma, Power and Propulsion Laboratory, Research School of Physics and Engineering, Australian National University, Canberra ACT 0200 (Australia); Department of Electrical Engineering and Computer Science, Iwate University, Morioka 020-8551 (Japan); Lafleur, Trevor; Charles, Christine; Alexander, Peter; Boswell, Rod W. [Space Plasma, Power and Propulsion Laboratory, Research School of Physics and Engineering, The Australian National University, Canberra ACT 0200 (Australia)

2012-08-15T23:59:59.000Z

477

Radiative parton energy loss in expanding quark-gluon plasma with magnetic monopoles  

E-Print Network [OSTI]

We study radiative parton energy loss in an expanding quark-gluon plasma with magnetic monopoles. We find that for realistic number density of thermal monopoles obtained in lattice simulations parton rescatterings on monopoles can considerably enhance energy loss for plasma produced in $AA$ collisions at RHIC and LHC energies. However, contrary to previous expectations, monopoles do not lead to the surface dominance of energy loss.

B. G. Zakharov

2014-12-19T23:59:59.000Z

478

Work distribution of an expanding gas and transverse energy production in relativistic heavy ion collisions  

E-Print Network [OSTI]

The work distribution of an expanding extreme relativistic gas is shown to be a gamma distribution with a different shape parameter as compared with its non-relativistic counterpart. This implies that the shape of the transverse energy distribution in relativistic heavy ion collisions depends on the particle contents during the evolution of the hot and dense matter. Therefore, transverse energy fluctuations provide additional insights into the Quark-Gluon Plasma produced in these collisions.

Bin Zhang; Jay P. Mayfield

2014-01-19T23:59:59.000Z

479

Work distribution of an expanding gas and transverse energy production in relativistic heavy ion collisions  

E-Print Network [OSTI]

The work distribution of an expanding extreme relativistic gas is shown to be a gamma distribution with a different shape parameter as compared with its non-relativistic counterpart. This implies that the shape of the transverse energy distribution in relativistic heavy ion collisions depends on the particle contents during the evolution of the hot and dense matter. Therefore, transverse energy fluctuations provide additional insights into the Quark-Gluon Plasma produced in these collisions.

Zhang, Bin

2013-01-01T23:59:59.000Z

480

Expanding the Industrial Assessment Center Program: Building an Industrial Efficiency Workforce  

E-Print Network [OSTI]

Expanding the Industrial Assessment Center Program: Building an Industrial Efficiency Workforce Daniel Trombley Engineering Associate R. Neal Elliott, Ph.D., P.E. Associate Director of Research American Council for an Energy... be underserved (or hard to serve geographically) by the CoE. The CoE would coordinate with other satellite centers to ensure regional needs are met. Satellite centers would be housed in universities and colleges with four year ABET 1 -accredited engineering...

Trombley, D.; Elliott, R. N.; Chittum, A.

Note: This page contains sample records for the topic "duty roots expander" from the National Library of EnergyBeta (NLEBeta).
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481

A possible approach to understand nonlinear gravitational clustering in expanding background  

E-Print Network [OSTI]

A new approach to study the nonlinear phase of gravitational clustering in an expanding universe is explored. This approach is based on an integro-differential equation, for the evolution of the gravitational potential in the Fourier space, which is obtained by using a physically motivated closure condition. I show how this equation allows one to understand several aspects of nonlinear gravitational clustering and provides insight in to the transfer of power from one scale to another through nonlinear mode coupling.

T. Padmanabhan

2005-11-20T23:59:59.000Z

482

Heat exchanger temperature response for duty-cycle transients in the NGNP/HTE.  

SciTech Connect (OSTI)

Control system studies were performed for the Next Generation Nuclear Plant (NGNP) interfaced to the High Temperature Electrolysis (HTE) plant. Temperature change and associated thermal stresses are important factors in determining plant lifetime. In the NGNP the design objective of a 40 year lifetime for the Intermediate Heat Exchanger (IHX) in particular is seen as a challenge. A control system was designed to minimize temperature changes in the IHX and more generally at all high-temperature locations in the plant for duty-cycle transients. In the NGNP this includes structures at the reactor outlet and at the inlet to the turbine. This problem was approached by identifying those high-level factors that determine temperature rates of change. First are the set of duty cycle transients over which the control engineer has little control but which none-the-less must be addressed. Second is the partitioning of the temperature response into a quasi-static component and a transient component. These two components are largely independent of each other and when addressed as such greater understanding of temperature change mechanisms and how to deal with them is achieved. Third is the manner in which energy and mass flow rates are managed. Generally one aims for a temperature distribution that minimizes spatial non-uniformity of thermal expansion in a component with time. This is can be achieved by maintaining a fixed spatial temperature distribution in a component during transients. A general rule of thumb for heat exchangers is to maintain flow rate proportional to thermal power. Additionally the product of instantaneous flow rate and heat capacity should be maintained the same on both sides of the heat exchanger. Fourth inherent mechanisms for stable behavior should not be compromised by active controllers that can introduce new feedback paths and potentially create under-damped response. Applications of these principles to the development of a plant control strategy for the reference NGNP/HTE plant can be found in the body of this report. The outcome is an integrated plant/control system design. The following conclusions are drawn from the analysis: (1) The plant load schedule can be managed to maintain near-constant hot side temperatures over the load range in both the nuclear and chemical plant. (2) The reactor open-loop response is inherently stable resulting mainly from a large Doppler temperature coefficient compared to the other reactivity temperature feedbacks. (3) The typical controller used to manage reactor power production to maintain reactor outlet temperature at a setpoint introduces a feedback path that tends to destabilize reactor power production in the NGNP. (4) A primary loop flow controller that forces primary flow to track PCU flow rate is effective in minimizing spatial temperature differentials within the IHX. (5) Inventory control in both the primary and PCU system during ramp load change transients is an effective means of maintaining high NGNP thermal efficiency while at reduced electric load. (6) Turbine bypass control is an effective means for responding to step changes in generator load when equipment capacity limitations prevent inventory control from being effective. (7) Turbine bypass control is effective in limiting PCU shaft over speed for the loss of generator load upset event. (8) The proposed control strategy is effective in limiting time variation of the differential spatial temperature distribution in the IHX during transients. Essentially the IHX can be made to behave in a manner where each point in the IHX experiences approximately the same temperature rate of change during a transient. (9) The stability of the closed-loop Brayton cycle was found to be sensitive to where one operates on the turbo-machine performance maps. There are competing interests: more stable operation means operating on the curves at points that reduce overall cycle efficiency. Future work should address in greater detail elements that came to light in the course of this work. Specifically: (1) A stability analysi

Vilim, R. B.; Nuclear Engineering Division

2009-03-12T23:59:59.000Z

483

Ideal quantum gas in expanding cavity: nature of non-adiabatic force  

E-Print Network [OSTI]

We consider a quantum gas of non-interacting particles confined in the expanding cavity, and investigate the nature of the non-adiabatic force which is generated from the gas and acts on the cavity wall. Firstly, with use of the time-dependent canonical transformation which transforms the expanding cavity to the non-expanding one, we can define the force operator. Secondly, applying the perturbative theory which works when the cavity wall begins to move at time origin, we find that the non-adiabatic force is quadratic in the wall velocity and thereby does not break the time-reversal symmetry, in contrast with the general belief. Finally, using an assembly of the transitionless quantum states, we obtain the nonadiabatic force exactly. The exact result justifies the validity of both the definition of force operator and the issue of the perturbative theory. The mysterious mechanism of nonadiabatic transition with use of transitionless quantum states is also explained. The study is done on both cases of the hard-wall and soft-wall confinement with the time-dependent confining length.

K. Nakamura; S. K. Avazbaev; Z. A. Sobirov; D. U. Matrasulov; T. Monnai

2011-05-21T23:59:59.000Z

484

Treatment of Benign Tracheal Stenosis Utilizing Self-Expanding Nitinol Stents  

SciTech Connect (OSTI)

We assessed the results of self-expanding metallic stent insertion into benign proximal tracheal stenosis in patients not appropriate or unfit for surgical repair. Proximal benign tracheal stenoses had occurred in 11 patients (7 men, 4 women, mean age 68.8 years) after long-time intubation (n = 6), tracheostomy (n = 4), or chondropathia (n = 1). Fourteen self-expanding nitinol stents were placed in the patients under general anesthesia with endoscopical and fluoroscopical guidance. Stent insertion was successful in all cases and led to immediate relief of the morphological and functional airway obstruction. No immediate complications were noted. During the mean follow-up period of 67.5 weeks we observed one recurrent dyspnea 3 months after implantation and granuloma formation at the stent insertion site in another patient. Both complications were successfully treated with additional stent insertion in one case and laser resection of granulomas in the other. Self-expanding nitinol stents should be considered for the treatment of benign proximal tracheal obstruction in selected patients for whom surgical repair is contraindicated.

Sesterhenn, Andreas M. [Philipps University, Department of Otolaryngology-Head and Neck Surgery (Germany)], E-mail: wagnerh@med.uni-marburg.de; Wagner, Hans-Joachim; Alfke, Heiko [Philipps-University, Department of Diagnostic Radiology (Germany); Werner, Jochen A.; Lippert, Burkard M. [Philipps University, Department of Otolaryngology-Head and Neck Surgery (Germany)

2004-08-15T23:59:59.000Z

485

Assessing the Battery Cost at Which Plug-In Hybrid Medium-Duty Parcel Delivery Vehicles Become Cost-Effective  

SciTech Connect (OSTI)

The National Renewable Energy Laboratory (NREL) validated diesel-conventional and diesel-hybrid medium-duty parcel delivery vehicle models to evaluate petroleum reductions and cost implications of hybrid and plug-in hybrid diesel variants. The hybrid and plug-in hybrid variants are run on a field data-derived design matrix to analyze the effect of drive cycle, distance, engine downsizing, battery replacements, and battery energy on fuel consumption and lifetime cost. For an array of diesel fuel costs, the battery cost per kilowatt-hour at which the hybridized configuration becomes cost-effective is calculated. This builds on a previous analysis that found the fuel savings from medium duty plug-in hybrids more than offset the vehicles' incremental price under future battery and fuel cost projections, but that they seldom did so under present day cost assumptions in the absence of purchase incentives. The results also highlight the importance of understanding the application's drive cycle specific daily distance and kinetic intensity.

Ramroth, L. A.; Gonder, J. D.; Brooker, A. D.

2013-04-01T23:59:59.000Z

486

Membrane-Based Air Composition Control for Light-Duty Diesel Vehicles: A Benefit and Cost Assessment  

SciTech Connect (OSTI)

This report presents the methodologies and results of a study conducted by Argonne National Laboratory (Argonne) to assess the benefits and costs of several membrane-based technologies. The technologies evaluated will be used in automotive emissions-control and performance-enhancement systems incorporated into light-duty diesel vehicle engines. Such engines are among the technologies that are being considered to power vehicles developed under the government-industry Partnership for a New Generation of Vehicles (PNGV). Emissions of nitrogen oxides (NO{sub x}) from diesel engines have long been considered a barrier to use of diesels in urban areas. Recently, particulate matter (PM) emissions have also become an area of increased concern because of new regulations regarding emissions of particulate matter measuring 2.5 micrometers or less (PM{sub 2.5}). Particulates are of special concern for diesel engines in the PNGV program; the program has a research goal of 0.01 gram per mile (g/mi) of particulate matter emissions under the Federal Test Procedure (FTP) cycle. This extremely low level (one-fourth the level of the Tier II standard) could threaten the viability of using diesel engines as stand-alone powerplants or in hybrid-electric vehicles. The techniques analyzed in this study can reduce NO{sub x} and particulate emissions and even increase the power density of the diesel engines used in light-duty diesel vehicles.

K. Stork; R. Poola

1998-10-01T23:59:59.000Z

487

DownloadedBy:[UniversityofFlorida]At:16:4718July2007 Comparison of Root-System Efficiency and  

E-Print Network [OSTI]

: This greenhouse study examined the root characteristics (biomass, length, area, and diameter) and root uptake weeks of growth, on a per plant basis, P. vittata accumulated 7.3­8.8 g of biomass and removed 2.51 mg, and area), and possessed a greater proportion of fine roots than N. exaltata. In addition, the As root

Ma, Lena

488

Bethe roots and refined enumeration of alternating-sign matrices  

E-Print Network [OSTI]

The properties of the most probable ground state candidate for the XXZ spin chain with the anisotropy parameter equal to -1/2 and an odd number of sites is considered. Some linear combinations of the components of the considered state, divided by the maximal component, coincide with the elementary symmetric polynomials in the corresponding Bethe roots. It is proved that those polynomials are equal to the numbers providing the refined enumeration of the alternating-sign matrices of order M+1 divided by the total number of the alternating-sign matrices of order M, for the chain of length 2M+1.

A. V. Razumov; Yu. G. Stroganov

2006-05-12T23:59:59.000Z

489

Relation of Soil Acidity to Cotton Root Rot.  

E-Print Network [OSTI]

depth in the boxes. Cotton was planted in a row along the middle of each box from 1928 through 1932. During 1928 root rot was introduced at one end of each box, by repeated artificial inoculation with naturally-infected cotton roofs ( 13 ) . Results... to the treatments. !This shift fro111 neutrality was generally greater in 1928 than in 1929. In 1928, the changes were confined largely to the surface layer (about 0-8 inches) of the soil. By the end of the second year, the pH was approximately uni- form in most...

Taubenhaus, J. J. (Jacob Joseph); Ezekiel, Walter N. (Walter Naphtali); Fudge, J. F. (Joseph Franklin)

1937-01-01T23:59:59.000Z

490

Texas Root Rot of Cotton and Methods of its Control.  

E-Print Network [OSTI]

Department of Agriculture reported on studies of dead spots in cotton, which will be referred to later. PRESENT WORK. In undertaking the present project, the writers deemed it necessary to check up the preliminary work carried out by others, because %of... and f), which becomes a .fertile field for a rich mycological flora. With all susceptible hosts, the disease in every case is confined to the roots, although it occasionally works up an inch or two to the foot end of the plant above ground...

Taubenhaus, J. J. (Jacob Joseph); Killough, D. T. (David Thornton)

1923-01-01T23:59:59.000Z

491

Investigating potential efficiency improvement for light-duty transportation applications through simulation of an organic Rankine cycle for waste-heat recovery  

SciTech Connect (OSTI)

Modern diesel engines used in light-duty transportation applications have peak brake thermal efficiencies in the range of 40-42% for high-load operation with substantially lower efficiencies at realistic road-load conditions. Thermodynamic energy and exergy analysis reveals that the largest losses from these engines are due to heat loss and combustion irreversibility. Substantial improvement in overall engine efficiency requires reducing or recovering these losses. Unfortunately, much of the heat transfer either occurs at relatively low temperatures resulting in large entropy generation (such as in the air-charge cooler), is transferred to low-exergy flow streams (such as the oil and engine coolant), or is radiated or convected directly to the environment. While there are significant opportunities for recovery from the exhaust and EGR cooler for heavy-duty applications, the potential benefits of such a strategy for light-duty applications are unknown due to transient operation, low-load operation at typical driving conditions, and the added mass of the system. We have developed an organic Rankine cycle model using GT-Suite to investigate the potential for efficiency improvement through waste-heat recovery from the exhaust and EGR cooler of a light-duty diesel engine. Results from steady-state and drive-cycle simulations are presented, and we discuss strategies to address operational difficulties associated with transient drive cycles and competition between waste-heat recovery systems, turbochargers, aftertreatment devices, and other systems for the limited thermal resources.

Edwards, Kevin Dean [ORNL; Wagner, Robert M [ORNL

2010-01-01T23:59:59.000Z

492

Effect of Gasoline Properties on Exhaust Emissions from Tier 2 Light-Duty Vehicles -- Final Report: Phase 3; July 28, 2008 - July 27, 2013  

SciTech Connect (OSTI)

This report covers work the Southwest Research Institute (SwRI) Office of Automotive Engineering has conducted for the U.S. Environmental Protection Agency (EPA), the National Renewable Energy Laboratory (NREL), and the Coordinating Research Council (CRC) in support of the Energy Policy Act of 2005 (EPAct). Section 1506 of EPAct requires EPA to produce an updated fuel effects model representing the 2007 light - duty gasoline fleet, including determination of the emissions impacts of increased renewable fuel use. This report covers the exhaust emissions testing of 15 light-duty vehicles with 27 E0 through E20 test fuels, and 4 light-duty flexible fuel vehicles (FFVs) on an E85 fuel, as part of the EPAct Gasoline Light-Duty Exhaust Fuel Effects Test Program. This program will also be referred to as the EPAct/V2/E-89 Program based on the designations used for it by the EPA, NREL, and CRC, respectively. It is expected that this report will be an attachment or a chapter in the overall EPAct/V2/E-89 Program report prepared by EPA and NREL.

Whitney, K.

2014-05-01T23:59:59.000Z

493

Methodology for Mechanical Property Testing of Fuel Cladding Using a Expanded Plug Wedge Test  

SciTech Connect (OSTI)

An expanded plug method was developed earlier for determining the tensile properties of irradiated fuel cladding. This method tests fuel rod cladding ductility by utilizing an expandable plug to radially stretch a small ring of irradiated cladding material. The circumferential or hoop strain is determined from the measured diametrical expansion of the ring. A developed procedure is used to convert the load circumferential strain data from the ring tests into material pseudo-stress-strain curves, from which material properties of the cladding can be extracted. However, several deficiencies existed in this expanded-plug test that can impact the accuracy of test results, such as that the large axial compressive stress resulted from the expansion plug test can potentially induce the shear failure mode of the tested specimen. Moreover, highly nonuniform stress and strain distribution in the deformed clad gage section and significant compressive stresses, induced by bending deformation due to clad bulging effect, will further result in highly nonconservative estimates of the mechanical properties for both strength and ductility of the tested clad. To overcome the aforementioned deficiencies associated with the current expansion plug test, systematic studies have been conducted. By optimizing the specific geometry designs, selecting the appropriate material for the expansion plug, and adding new components into the testing system, a modified expansion plug testing protocol has been developed. A general procedure was also developed to determine the hoop stress in the tested ring specimen. A scaling factor, -factor, was used to convert the ring load Fring into hoop stress , and is written as _ = F_ring/tl , where t is the clad thickness and l is the clad length. The generated stress-strain curve agrees well with the associated tensile test data in both elastic and plastic deformation regions.

Jiang, Hao [ORNL; Wang, Jy-An John [ORNL

2014-01-01T23:59:59.000Z

494

Combination nickel foam expanded nickel screen electrical connection supports for solid oxide fuel cells  

DOE Patents [OSTI]

A solid oxide fuel assembly is made, wherein rows (14, 25) of fuel cells (17, 19, 21, 27, 29, 31), each having an outer interconnection (20) and an outer electrode (32), are disposed next to each other with corrugated, electrically conducting expanded metal mesh member (22) between each row of cells, the corrugated mesh (22) having top crown portions and bottom portions, where the top crown portion (40) have a top bonded open cell nickel foam (51) which contacts outer interconnections (20) of the fuel cells, said mesh and nickel foam electrically connecting each row of fuel cells, and where there are no more metal felt connections between any fuel cells.

Draper, Robert; Prevish, Thomas; Bronson, Angela; George, Raymond A.

2007-01-02T23:59:59.000Z

495

On the reachable cycles via the unified perspective of cryocoolers. Part B: Cryocoolers with isentropic expanders  

SciTech Connect (OSTI)

Solvay, Stirling and Gifford-McMahon types of cryocoolers employ an isentropic expander which is their elementary mechanism for temperature reduction (following the unified model of cryocoolers as described in a previous paper, Part A). Solvay and Stirling cryocoolers are driven by a larger temperature reduction than that of the Gifford-McMahon cycle, for a similar compression ratio. These cryocoolers are compared from the view of the unified model, in terms of the lowest attainable temperature, compression ratio, the size of the interchanger and the applied heat load.

Maytal, Ben-Zion [Rafael, Ltd., P.O. Box 2250, Haifa 3102102 (Israel); Pfotenhauer, John M. [University of Wisconsin-Madison, Madison, WI 53706 (United States)

2014-01-29T23:59:59.000Z

496

Large Scale Impact of the Cosmological Population of Expanding Radio Galaxies  

E-Print Network [OSTI]

We seek to compute the fraction of the volume of the Universe filled by expanding cocoons of the cosmological population of radio galaxies over the Hubble time as well as the magnetic field infused by them, in order to assess their importance in the cosmic evolution of the Universe. Using N-body $\\Lambda$CDM simulations, radio galaxies distributed according to the observed radio luminosity function are allowed to evolve in a cosmological volume as using well defined prescriptions for their expansion. We find that the radio galaxies permeate $10 - 30%$ of the total volume with $\\sim 10^{-8}$ G magnetic field by the present epoch.

Barai, Paramita

2008-01-01T23:59:59.000Z

497

Large Scale Impact of the Cosmological Population of Expanding Radio Galaxies  

E-Print Network [OSTI]

We seek to compute the fraction of the volume of the Universe filled by expanding cocoons of the cosmological population of radio galaxies over the Hubble time as well as the magnetic field infused by them, in order to assess their importance in the cosmic evolution of the Universe. Using N-body $\\Lambda$CDM simulations, radio galaxies distributed according to the observed radio luminosity function are allowed to evolve in a cosmological volume as using well defined prescriptions for their expansion. We find that the radio galaxies permeate $10 - 30%$ of the total volume with $\\sim 10^{-8}$ G magnetic field by the present epoch.

Paramita Barai

2008-06-11T23:59:59.000Z

498

Time-resolved measurements of double layer evolution in expanding plasma  

SciTech Connect (OSTI)

Observations in steady-state plasmas confirm predictions that formation of a current-free double layer in a plasma expanding into a chamber of larger diameter is accompanied by an increase in ionization upstream of the double layer. The upstream plasma density increases sharply at the same driving frequency at which a double layer appears. For driving frequencies at which no double layer appears, large electrostatic instabilities are observed. Time-resolved measurements in pulsed discharges indicate that the double layer initially forms for all driving frequencies. However, for particularly strong double layers, instabilities appear early in the discharge and the double layer collapses.

Scime, E. E.; Biloiu, I. A.; Carr, J. Jr.; Thakur, S. Chakraborty; Galante, M.; Hansen, A.; Houshmandyar, S.; Keesee, A. M.; McCarren, D.; Sears, S. [Department of Physics, West Virginia University, Morgantown, West Virginia 26506 (United States); Biloiu, C. [Varian Associates, Gloucester, Massachusetts 01930 (United States); Sun, X. [Tri-Alpha Corporation, Foothill Ranch, California 92610 (United States)

2010-05-15T23:59:59.000Z

499

Expanding the Use of Biogas with Fuel Cell Technologies | Department of  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-UpHeat PumpRecord ofESPCof EnergyHouse11 DOEExhaustEnergy Expanding the Use of

500

The environmental effects of expanded trade: a firm-level simulation analysis o investment in Texas grapefruit  

E-Print Network [OSTI]

This research is about the future of the Texas citrus industry and, in particular, whether rapid growth and development associated with expanded trade are likely to be significant factors affecting future investment in the industry. The Dixit...

Elmer,Nicole Audra

1997-01-01T23:59:59.000Z