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1

Building bus rapid transit into the existing public transit system : competition and integration of BRT and the Urban Rail Transit in cities in China  

E-Print Network (OSTI)

BRT is a new type of bus transit with high speed and capacity. With its advantages and benefits, BRT is getting popular in the world, including China. Since BRT and urban rail transit (URT) are both rapid public transports, ...

Zhan, Yun, M.C.P. Massachusetts Institute of Technology

2011-01-01T23:59:59.000Z

2

Bus Rapid Transit Planning Guide | Open Energy Information  

Open Energy Info (EERE)

Bus Rapid Transit Planning Guide Bus Rapid Transit Planning Guide Jump to: navigation, search Tool Summary Name: Bus Rapid Transit Planning Guide Agency/Company /Organization: Institute for Transportation & Development Policy Focus Area: Public Transit & Infrastructure Topics: Best Practices Resource Type: Reports, Journal Articles, & Tools Website: www.itdp.org/microsites/bus-rapid-transit-planning-guide/ The Bus Rapid Transit Planning Guide is the most comprehensive resource for planning a bus rapid transit (BRT) system, beginning with project preparation all the way through to implementation. How to Use This Tool This tool is most helpful when using these strategies: Improve - Enhance infrastructure & policies Learn more about the avoid, shift, improve framework for limiting air

3

Global Bus Rapid Transit (BRT) Database | Open Energy Information  

Open Energy Info (EERE)

Global Bus Rapid Transit (BRT) Database Global Bus Rapid Transit (BRT) Database Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Global Bus Rapid Transit (BRT) Database Agency/Company /Organization: EMBARQ Complexity/Ease of Use: Not Available Website: www.brtdata.org/ Equivalent URI: cleanenergysolutions.org/content/global-bus-rapid-transit-brt-database Language: English Related Tools European Green Cars Initiative Guidelines and Toolkits for Urban Transport Development in Medium Sized Cities in India Making Car Sharing and Car Clubs Work: Final Report ... further results Find Another Tool FIND TRANSPORTATION TOOLS This tool provides public access to current data about bus rapid transit systems around the world, including data for the design, performance, and cost of these systems. The database can be filtered by location or

4

South Africa-GTZ Bus Rapid Transit Johannesburg | Open Energy Information  

Open Energy Info (EERE)

Africa-GTZ Bus Rapid Transit Johannesburg Africa-GTZ Bus Rapid Transit Johannesburg Jump to: navigation, search Logo: South Africa-GTZ Bus Rapid Transit Johannesburg Name South Africa-GTZ Bus Rapid Transit Johannesburg Agency/Company /Organization GTZ Partner City of Johannesburg Sector Energy Focus Area Transportation Topics Implementation, Policies/deployment programs, Background analysis Website http://www.gtz.de/en/themen/um Program Start 2006 Country South Africa UN Region Southern Africa References GTZ's Contribution to the Johannesburg Rea Vaya Bus Rapid Transit (BRT) Project [1] Sustainable Urban Transport Project [2] Johannesburg started planning a Bus Rapid Transit (BRT) system in November 2006. For the city of Johannesburg and on behalf of KfW Entwicklungsbank, GTZ is working to create a network of bus routes totalling 120 kilometres

5

First results from the MIT optical rapid imaging system (MORIS) on the IRTF: A stellar occultation by Pluto and a transit by exoplanet XO-2b  

E-Print Network (OSTI)

We present a high-speed, visible-wavelength imaging instrument: MORIS (the MIT Optical Rapid Imaging System). MORIS is mounted on the 3 m Infrared Telescope Facility (IRTF) on Mauna Kea, Hawaii. Its primary component is ...

Gulbis, Amanda A. S.

6

Stochastic approaches for solving Rapid Transit Network Design ...  

E-Print Network (OSTI)

the estimation of the future demand will have in the design of new rapid transit ... is based on the current mobility patterns for which a new infrastructure does not.

7

Alternative Fuel Transit Buses: DART's (Dallas Area Rapid Transit) LNG Bus Fleet Final Results  

DOE Green Energy (OSTI)

In 1998, Dallas Area Rapid Transit, a public transit agency in Dallas, Texas, began operating a large fleet of heavy-duty buses powered by liquefied natural gas. As part of a $16 million commitment to alternative fuels, DART operates 139 LNG buses serviced by two new LNG fueling stations.

Chandler, K. [Battelle (US); Norton, P. [National Renewable Energy Lab., Golden, CO (US); Clark, N.

2000-11-07T23:59:59.000Z

8

System strategies in the management of transit systems towards the end of their life cycle  

E-Print Network (OSTI)

This thesis explores and evaluates essential strategies needed for the transit authority/operator to deal with end of life cycle challenges of Rapid Transit Systems (RTS) systems. RTS systems are elaborate systems consisting ...

Kairon, Ajmer Singh

2007-01-01T23:59:59.000Z

9

TRANSIT LIGHTCURVES OF EXTRASOLAR PLANETS ORBITING RAPIDLY ROTATING STARS  

Science Conference Proceedings (OSTI)

Main-sequence stars earlier than spectral-type approxF6 or so are expected to rotate rapidly due to their radiative exteriors. This rapid rotation leads to an oblate stellar figure. It also induces the photosphere to be hotter (by up to several thousand kelvin) at the pole than at the equator as a result of a process called gravity darkening that was first predicted by von Zeipel. Transits of extrasolar planets across such a non-uniform, oblate disk yield unusual and distinctive lightcurves that can be used to determine the relative alignment of the stellar rotation pole and the planet orbit normal. This spin-orbit alignment can be used to constrain models of planet formation and evolution. Orderly planet formation and migration within a disk that is coplanar with the stellar equator will result in spin-orbit alignment. More violent planet-planet scattering events should yield spin-orbit misaligned planets. Rossiter-McLaughlin measurements of transits of lower-mass stars show that some planets are spin-orbit aligned, and some are not. Since Rossiter-McLaughlin measurements are difficult around rapid rotators, lightcurve photometry may be the best way to determine the spin-orbit alignment of planets around massive stars. The Kepler mission will monitor approx10{sup 4} of these stars within its sample. The lightcurves of any detected planets will allow us to probe the planet formation process around high-mass stars for the first time.

Barnes, Jason W., E-mail: jwbarnes@uidaho.ed

2009-11-01T23:59:59.000Z

10

Rapid starting methanol reactor system  

DOE Patents (OSTI)

The invention relates to a methanol-to-hydrogen cracking reactor for use with a fuel cell vehicular power plant. The system is particularly designed for rapid start-up of the catalytic methanol cracking reactor after an extended shut-down period, i.e., after the vehicular fuel cell power plant has been inoperative overnight. Rapid system start-up is accomplished by a combination of direct and indirect heating of the cracking catalyst. Initially, liquid methanol is burned with a stoichiometric or slightly lean air mixture in the combustion chamber of the reactor assembly. The hot combustion gas travels down a flue gas chamber in heat exchange relationship with the catalytic cracking chamber transferring heat across the catalyst chamber wall to heat the catalyst indirectly. The combustion gas is then diverted back through the catalyst bed to heat the catalyst pellets directly. When the cracking reactor temperature reaches operating temperature, methanol combustion is stopped and a hot gas valve is switched to route the flue gas overboard, with methanol being fed directly to the catalytic cracking reactor. Thereafter, the burner operates on excess hydrogen from the fuel cells.

Chludzinski, Paul J. (38 Berkshire St., Swampscott, MA 01907); Dantowitz, Philip (39 Nancy Ave., Peabody, MA 01960); McElroy, James F. (12 Old Cart Rd., Hamilton, MA 01936)

1984-01-01T23:59:59.000Z

11

The potential for bus rapid transit to promote transit oriented development : an analysis of BRTOD in Ottawa, Brisbane, and Pittsburgh  

E-Print Network (OSTI)

This thesis explores the conditions under which bus rapid transit (BRT) can promote transit oriented development (TOD). At a time when cities throughout the U.S. are searching for methods to reduce road congestion and limit ...

Judy, Meredith H. (Meredith Hampton)

2007-01-01T23:59:59.000Z

12

FTA-Characteristics of Bus Rapid Transit for Decision-Making | Open Energy  

Open Energy Info (EERE)

FTA-Characteristics of Bus Rapid Transit for Decision-Making FTA-Characteristics of Bus Rapid Transit for Decision-Making Jump to: navigation, search Tool Summary LAUNCH TOOL Name: FTA-Characteristics of Bus Rapid Transit for Decision-Making Agency/Company /Organization: Federal Transit Administration, United States Department of Transportation Focus Area: Transportation Resource Type: Publications, Guide/manual User Interface: Other Website: www.nbrti.org/docs/pdf/Characteristics_BRT_Decision-Making.pdf Cost: Free Language: English FTA-Characteristics of Bus Rapid Transit for Decision-Making Screenshot References: FTA-Characteristics of Bus Rapid Transit for Decision-Making[1] "The Characteristics of Bus Rapid Transit for Decision-Making (CBRT) report was prepared to provide transportation planners and decision makers with

13

TRB-Transit Cooperative Research Program (TCRP): Case Studies in Bus Rapid  

Open Energy Info (EERE)

TRB-Transit Cooperative Research Program (TCRP): Case Studies in Bus Rapid TRB-Transit Cooperative Research Program (TCRP): Case Studies in Bus Rapid Transit Jump to: navigation, search Tool Summary LAUNCH TOOL Name: TRB-Transit Cooperative Research Program (TCRP): Case Studies in Bus Rapid Transit Agency/Company /Organization: Transportation Research Board Focus Area: Transportation Resource Type: Publications, Lessons learned/best practices, Case studies/examples Website: www.trb.org/Main/Public/Blurbs/152921.aspx Country: United States, Australia, United Kingdom, France, Colombia, Brazil, Ecuador Cost: Free Northern America, Australia and New Zealand, Northern Europe, Western Europe, South America, South America, South America Language: English TRB-Transit Cooperative Research Program (TCRP): Case Studies in Bus Rapid Transit Screenshot

14

Rapidly deployable emergency communication system  

DOE Patents (OSTI)

A highly versatile, highly portable emergency communication system which permits deployment in a very short time to cover both wide areas and distant isolated areas depending upon mission requirements. The system employs a plurality of lightweight, fully self-contained repeaters which are deployed within the mission area to provide communication between field teams, and between each field team and a mobile communication control center. Each repeater contains a microcomputer controller, the program for which may be changed from the control center by the transmission of digital data within the audible range (300-3,000 Hz). Repeaters are accessed by portable/mobile transceivers, other repeaters, and the control center through the transmission and recognition of digital data code words in the subaudible range.

Gladden, Charles A. (Las Vegas, NV); Parelman, Martin H. (Las Vegas, NV)

1979-01-01T23:59:59.000Z

15

Rapid file system development using ptrace  

Science Conference Proceedings (OSTI)

Developing kernel-level file systems is a difficult task that requires a significant time investment. For experimental file systems, it is desirable to develop a prototype before investing the time required to develop a kernel-level file system. We have ... Keywords: monitors, rapid prototyping

Richard P. Spillane; Charles P. Wright; Gopalan Sivathanu; Erez Zadok

2007-06-01T23:59:59.000Z

16

RAPID TRANSITION OF UNCOMBED PENUMBRAE TO FACULAE DURING LARGE FLARES  

Science Conference Proceedings (OSTI)

In the past two decades, the complex nature of sunspots has been disclosed with high-resolution observations. One of the most important findings is the 'uncombed' penumbral structure, where a more horizontal magnetic component carrying most of Evershed flows is embedded in a more vertical magnetic background. The penumbral bright grains are locations of hot upflows and dark fibrils are locations of horizontal flows that are guided by a nearly horizontal magnetic field. On the other hand, it was found that flares may change the topology of sunspots in {delta} configuration: the structure at the flaring polarity inversion line becomes darkened while sections of peripheral penumbrae may disappear quickly and permanently associated with flares. The high spatial and temporal resolution observations obtained with the Hinode/Solar Optical Telescope provide an excellent opportunity to study the evolution of penumbral fine structures associated with major flares. Taking advantage of two near-limb events, we found that in sections of peripheral penumbrae swept by flare ribbons the dark fibrils completely disappear, while the bright grains evolve into faculae that are signatures of vertical magnetic flux tubes. The corresponding magnetic fluxes measured in the decaying penumbrae show stepwise changes temporally correlated with the flares. These observations suggest that the horizontal magnetic field component of the penumbra could be straightened upward (i.e., turning from horizontal to vertical) due to magnetic field restructuring associated with flares, which results in the transition of penumbrae to faculae.

Wang Haimin; Deng Na; Liu Chang, E-mail: haimin.wang@njit.edu [Space Weather Research Laboratory, New Jersey Institute of Technology, Newark, NJ 07102 (United States)

2012-04-01T23:59:59.000Z

17

Energy-beam-driven rapid fabrication system  

DOE Patents (OSTI)

An energy beam driven rapid fabrication system, in which an energy beam strikes a growth surface to form a molten puddle thereon. Feed powder is then injected into the molten puddle from a converging flow of feed powder. A portion of the feed powder becomes incorporated into the molten puddle, forcing some of the puddle contents to freeze on the growth surface, thereby adding an additional layer of material. By scanning the energy beam and the converging flow of feed powder across the growth surface, complex three-dimensional shapes can be formed, ready or nearly ready for use. Nearly any class of material can be fabricated using this system.

Keicher, David M. (Albuquerque, NM); Atwood, Clinton L. (Albuquerque, NM); Greene, Donald L. (Corrales, NM); Griffith, Michelle L. (Albuquerque, NM); Harwell, Lane D. (Albuquerque, NM); Jeantette, Francisco P. (Albuquerque, NM); Romero, Joseph A. (Albuquerque, NM); Schanwald, Lee P. (Albuquerque, NM); Schmale, David T. (Albuquerque, NM)

2002-01-01T23:59:59.000Z

18

The design evaluation of inductive power-transformer for personal rapid transit by measuring impedance  

SciTech Connect

The contact-less inductive power transformer (IPT) uses the principle of electromagnetic induction. The concept of the IPT for vehicles such as the personal rapid transit (PRT) system is proposed and some suggestions for power collector design of IPT to improve power transfer performance are presented in this paper. The aim of this paper is to recommend the concept of IPT for vehicles such as the PRT system and also to present some propositions for the power collector design of the IPT, which is to improve the power transfer performance. Generally, there are diverse methods to evaluate transfer performance of the traditional transformers. Although the principle of IPT is similar to that of the general transformer, it is impossible to apply the methods directly because of large air gap. The system must be compensated by resonant circuit due to the large air gap. Consequently, it is difficult to apply numerical formulas to the magnetic design of IPT systems. This paper investigates the magnetic design of a PRT system using three-dimensional magnetic modeling and measurements of the pick-up coupling coefficient and its impedances. In addition, how the use of Litz wire and leakage inductance is related will be observed through experiment and simulation.

Han, Kyung-Hee [Department of Electrical Engineering, Dongguk University, Seoul 100-715 (Korea, Republic of); Department of Electricity and Signaling, Korea Railroad Research Institute, Uiwang, Kyonggi 437-050 (Korea, Republic of); Lee, Byung-Song [Department of Electricity and Signaling, Korea Railroad Research Institute, Uiwang, Kyonggi 437-050 (Korea, Republic of); Baek, Soo-Hyun [Department of Electrical Engineering, Dongguk University, Seoul 100-715 (Korea, Republic of)

2008-04-01T23:59:59.000Z

19

Tradeoffs between Costs and Greenhouse Gas Emissions in the Design of Urban Transit Systems  

E-Print Network (OSTI)

Rail, and Diesel Multiple Units." Transportation ResearchRail Transit and Bus Rapid Transit." Transportation Researchrail and bus rapid transit over a radial public transport network." Research

Griswold, Julia Baird

2013-01-01T23:59:59.000Z

20

Modeling Fragility in Rapidly Evolving Disaster Response Systems  

E-Print Network (OSTI)

Multi-Organizational Disaster Response Systems." Pittsburgh,in Rapidly Evolving Disaster Response Systems Louise K.capacity in an actual disaster response system to determine

Comfort, Louise K.; Ko, Kilkon; Zagorecki, Adam

2003-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "rapid transit systems" 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

RAPID-CURE COATINGS SYSTEM - Home - Energy Innovation Portal  

Technology Marketing Summary The Naval Research Laboratory has developed a durable, rapid cure coatings system that is designed for harsh ...

22

PERFORMANCE OF THE AGS TRANSITION JUMP SYSTEM.  

SciTech Connect

The transition jump system has been indispensable to the high intensity proton operation of the AGS complex. Nevertheless, transition crossing remains one of the major hurdles as the accelerator complex intensity is pushed upward. To enhance the performance of the system ''quadrupole pumping'' in the Booster is used to minimize the necessary longitudinal dilution of the beam on the AGS injection porch. During the transition jump sextupole correctors at strategic locations are pulsed to minimize the effects of the chromatic non-linearity of the jump system. The available instrumentation for diagnosing the performance of the system will be described, along with installed hardware to counter the non-linear effects of the transition jump system.

AHRENS,L.A.; BRENNAN,J.M.; GLENN,J.W.; ROSER,T.; VAN ASSELT,W.K.

1999-03-29T23:59:59.000Z

23

Logic foundry: rapid prototyping for FPGA-based DSP systems  

Science Conference Proceedings (OSTI)

We introduce the Logic Foundry, a system for the rapid creation and integration of FPGA-based digital signal processing systems. Recognizing that some of the greatest challenges in creating FPGA-based systems occur in the integration of the various components, ... Keywords: CAD tools, DSP, FPGA, design methodology, integration, rapid prototyping

Gary Spivey; Shuvra S. Bhattacharyya; Kazuo Nakajima

2003-01-01T23:59:59.000Z

24

Rapid scanning system for fuel drawers  

DOE Patents (OSTI)

A nondestructive method for uniqely distinguishing among and quantifying the mass of individual fuel plates in situ in fuel drawers utilized in nuclear reactors is described. The method is both rapid and passive, eliminating the personnel hazard of the commonly used irradiation techniques which require that the analysis be performed in proximity to an intense neutron source such as a reactor. In the present technique, only normally decaying nuclei are observed. This allows the analysis to be performed anywhere. This feature, combined with rapid scanning of a given fuel drawer (in approximately 30 s), and the computer data analysis allows the processing of large numbers of fuel drawers efficiently in the event of a loss alert.

Caldwell, John T. (Los Alamos, NM); Fehlau, Paul E. (Los Alamos, NM); France, Stephen W. (Los Alamos, NM)

1981-01-01T23:59:59.000Z

25

Rapid file system development using ptrace  

Science Conference Proceedings (OSTI)

Developing kernel-level file systems is a difficult task that requires a significant time investment. For experimental file systems, it is desirable to develop a prototype before investing the time required to develop a kernel-level file system. We have ...

Richard P. Spillane; Charles P. Wright; Gopalan Sivathanu; Erez Zadok

2007-06-01T23:59:59.000Z

26

Geographic Information System At Walker-Lane Transitional Zone...  

Open Energy Info (EERE)

Geographic Information System At Walker-Lane Transitional Zone Region (Laney, 2005) Exploration Activity Details Location Walker-Lane Transition Zone Geothermal Region Exploration...

27

Geographic Information System At Walker-Lane Transitional Zone...  

Open Energy Info (EERE)

Geographic Information System At Walker-Lane Transitional Zone Region (Coolbaugh, Et Al., 2005 - 2) Exploration Activity Details Location Walker-Lane Transition Zone Geothermal...

28

Rapid TRANSIT to the Future Using UPK for Oracle’s E-Business Suite Executive Overview  

E-Print Network (OSTI)

This is a case study of how Denver Regional Transportation District (RTD) is utilizing Oracle’s User Productivity Kit (UPK) software to maximize efficiency and effectiveness in its training programs for the implementation and rollout of Oracle E-Business Suite and Maximus maintenance management applications. This paper will answer several key questions about the use of UPK during the project, as well as why organizations should leverage UPK for their education and training rollouts as well as ongoing maintenance of those programs. Introduction and Background Denver RTD operates a public transportation system in an eight county service area with Denver, CO at the center. RTD is involved in several major transportation projects in the Denver metropolitan area including FasTracks, a 12 year regional transportation plan to improve and expand bus and rapid transit and T-REX, a combined light rail and highway expansion project. Involvement in both of these projects required RTD to

A Solbourne

2007-01-01T23:59:59.000Z

29

Development of an advanced nanocalorimetry system for rapid material characterizations  

E-Print Network (OSTI)

The development of a versatile system capable of providing rapid, portable, and inexpensive detection of explosives and energetic compounds is needed critically to offer an enhanced level of protection against current and future threats to homeland security, as well as to satisfy a wide range of applications in the fields of forensic analysis, emergency response, and industrial hazards analysis. The hand-held nanocalorimeter will serve as a first-of-its-kind screening tools for explosive and energetic compounds directly in the settings where they are needed with high efficiency, reduced cost, and simplicity with ease of use. Unlike current explosives detectors, this system is based on calorimetric techniques that are inherently capable of providing direct measurements of energy release potential and therefore do not depend on prior knowledge of familiar compounds. The microfabricated calorimetry instrument consists of (i) a thermal control module incorporating arrays of microfabricated heaters and temperature sensors, as well as any necessary electronic interconnections, and (ii) a sample encapsulation module incorporating etched enclosures designed to accommodate either solid or liquid samples. Initial work has led to successful fabrication of a chip capable of sampling nano-sized solid or liquid compounds. Control algorithms incorporating the DSC principle have also been written using LabVIEW. Device performance of the original and redesigned chips were tested by studying the thermal transitions associated with the boiling points of acetone and pentane. With the redesigned chip, the heat loss issue was reduced: the measured input heat was reduced from 32 times of the required energy to 5 times of the required energy. Future work will focus on modifying the chip design and control algorithm to improve accuracy and sensitivity, developing a trace analysis software to link it to a database of explosive information, and adapting different fabrication procedures for high temperature operation and large scale production.

Liu, Yen-Shan

2006-12-01T23:59:59.000Z

30

Optical Transition Radiation System for ATF2  

SciTech Connect

In this paper we present the first measurements performed during the fall 2010 and early 2011 runs. Software development, simulations and hardware improvements to the Multi-Optical Transition Radiation System installed in the beam diagnostic section of the Extraction line of ATF2 are described. 2D emittance measurements have been performed and the system is being routinely used for coupling correction. Realistic beam simulations have been made and compared with the measurements. A demagnifier lens system to improve the beam finding procedure has been designed and will be implemented in a future run. We also discuss further work planned for the subsequent run periods.

Alabau-Gonzalvo, J.; Gutierrez, C.Blanch; Faus-Golfe, A.; Garcia-Garrigos, J.J.; /Valencia U., IFIC; Cruz, J.; McCormick, D.; White, G.; Woodley, M.; /SLAC

2012-02-14T23:59:59.000Z

31

Rail Transit Investments, Real Estate Values, and Land Use Change: A Comparative Analysis of Five California Rail Transit Systems  

E-Print Network (OSTI)

Cervero, Robert. 1993. "Rail Transit and Joint Development:the Vancouver Advanced Light Rail Transit System on Single-Strathman. 1993. Light Rail Transit Stations and Property

Landis, John; Guhathakurta, Subhrajit; Huang, William; Zhang, Ming; Fukuji, Bruce

1995-01-01T23:59:59.000Z

32

Staged venting of fuel cell system during rapid shutdown  

DOE Patents (OSTI)

A venting methodology and system for rapid shutdown of a fuel cell apparatus of the type used in a vehicle propulsion system. H.sub.2 and air flows to the fuel cell stack are slowly bypassed to the combustor upon receipt of a rapid shutdown command. The bypass occurs over a period of time (for example one to five seconds) using conveniently-sized bypass valves. Upon receipt of the rapid shutdown command, the anode inlet of the fuel cell stack is instantaneously vented to a remote vent to remove all H.sub.2 from the stack. Airflow to the cathode inlet of the fuel cell stack gradually diminishes over the bypass period, and when the airflow bypass is complete the cathode inlet is also instantaneously vented to a remote vent to eliminate pressure differentials across the stack.

Clingerman, Bruce J. (Palmyra, NY); Doan, Tien M. (Columbia, MD); Keskula, Donald H. (Webster, NY)

2002-01-01T23:59:59.000Z

33

Capitalization of Transit Investments into Single-Family Home Prices: A Comparative Analysis of Five California Rail Transit Systems  

E-Print Network (OSTI)

of the VancouverAdvancedLight Rail Transit System on Single-Analysis of Five California Rail Transit Systems John Lanchsof Five California Rail Transit Systems John Landis Subhra

Landis, John; Guhathakurta, Subhrajit; Zhang, Ming

1994-01-01T23:59:59.000Z

34

Ohio Transit System Saves With Solar | Department of Energy  

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

Ohio Transit System Saves With Solar Ohio Transit System Saves With Solar Ohio Transit System Saves With Solar July 23, 2010 - 3:42pm Addthis METRO Regional Transit Authority of Akron, OH is installing a solar energy system such as this on the central bus barn's roof. | Energy Department Photo | METRO Regional Transit Authority of Akron, OH is installing a solar energy system such as this on the central bus barn's roof. | Energy Department Photo | Joshua DeLung What does this project do? The new PV solar energy system being installed by the METRO Regional Transit Authority of Akron, Ohio on their central bus barn roof is expected to meet 15 percent of the transit system's bus barn energy needs. Akron, OH anticipates $40,000 in annual energy savings once the project is complete. Updated Oct. 13, 2010.

35

DART's (Dallas Area Rapid Transit) LNG Bus Fleet Start-Up Experience (Alternative Fuel Transit Buses Brochure)  

SciTech Connect

This report, based on interviews and site visits conducted in October 1999, describes the start-up activities of the DART liquefied natural gas program, identifying problem areas, highlighting successes, and capturing the lessons learned in DART's ongoing efforts to remain at the forefront of the transit industry.

Battelle

2000-06-30T23:59:59.000Z

36

The Multi Optical Transition Radiation System  

SciTech Connect

The determination and monitoring of the transverse phase space in ATF2 is crucial in order to meet their performances specifications. Since the beam sizes at the Interaction Point (IP) depend strongly on the aberrations in the Final Focus System (FFS), accurate measurement upstream of the FFS is required to tune the beam sizes at the IP. The beam sizes as well as the emittance are measured in several locations in the beam diagnostic section of the Extraction Line (EXT line) of ATF2. The vertical beam sizes in the diagnostic section are of the order of 10 {mu}m this means that the devices have to image spot sizes as small as 5 {mu}m, with 10% accuracy a 2 {mu}m resolution device is necessary. The ATF2 EXT line is a beam line with low power and low repetition rate that make usable devices using solid targets. In contrast to a ring machine, where an individual bunch can be measured many times as it passes around the ring, the beam size and the emittance measurement in the LC or in the beam lines have to be performed in a single pass. This requires that the wire scan device types (laser or solid) sample across successive bunches within a train, often with an over-estimation of the beam size due to beam position and intensity jitter, and can take up to half a minute to complete the measurement. Although some of these effects could be corrected, as the jitter effect could be subtracted by using the nearby BPMs signals, this can be avoided by using Optical Transition Radiation (OTR) Monitors. These monitors are based on the transition radiation effect, a light cone emitted when the charged particle crosses a metallic interface. This light is emitted in a specular fashion so it can be focused on to a CCD and produces an image of the beam. OTRs are able to take many fast measurements and therefore to measure the emittance with high statistics, giving a low error and a good understanding of the emittance jitter. In this article, simulations of the expected beam sizes and emittance, along with a technical description of the system, its hardware and software implementation are described. Additionally first measurement of the beam size and emittance of the Multi Optical Transition Radiation System located in the Extraction Line of ATF2 are presented.

Faus-Golfe, A.; Alabau-Gonzalvo, J.; Blanch Gutierrez, C.; /Valencia U., IFIC; McCormick, D.; Cruz, J.; Woodley, M.; White, G.; /SLAC

2012-04-19T23:59:59.000Z

37

Sustainable energy for developing countries : modelling transitions to renewable and clean energy in rapidly developing countries.  

E-Print Network (OSTI)

??The main objective of this thesis is first to adapt energy models for the use in developing countries and second to model sustainable energy transitions… (more)

Urban, Frauke

2009-01-01T23:59:59.000Z

38

Geographic Information System At Walker-Lane Transitional Zone...  

Open Energy Info (EERE)

navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geographic Information System At Walker-Lane Transitional Zone Region (Blackwell, Et Al., 2003)...

39

Rapid cycling medical synchrotron and beam delivery system  

DOE Patents (OSTI)

A medical synchrotron which cycles rapidly in order to accelerate particles for delivery in a beam therapy system. The synchrotron generally includes a radiofrequency (RF) cavity for accelerating the particles as a beam and a plurality of combined function magnets arranged in a ring. Each of the combined function magnets performs two functions. The first function of the combined function magnet is to bend the particle beam along an orbital path around the ring. The second function of the combined function magnet is to focus or defocus the particle beam as it travels around the path. The radiofrequency (RF) cavity is a ferrite loaded cavity adapted for high speed frequency swings for rapid cycling acceleration of the particles.

Peggs, Stephen G. (Port Jefferson, NY); Brennan, J. Michael (East Northport, NY); Tuozzolo, Joseph E. (Sayville, NY); Zaltsman, Alexander (Commack, NY)

2008-10-07T23:59:59.000Z

40

Quantum phase transitions in Bose-Fermi systems  

SciTech Connect

Research Highlights: > We study quantum phase transitions in a system of N bosons and a single-j fermion. > Classical order parameters and correlation diagrams of quantum levels are determined. > The odd fermion strongly influences the location and nature of the phase transition. > Experimental evidence for the U(5)-SU(3) transition in odd-even nuclei is presented. - Abstract: Quantum phase transitions in a system of N bosons with angular momentum L = 0, 2 (s, d) and a single fermion with angular momentum j are investigated both classically and quantum mechanically. It is shown that the presence of the odd fermion strongly influences the location and nature of the phase transition, especially the critical value of the control parameter at which the phase transition occurs. Experimental evidence for the U(5)-SU(3) (spherical to axially-deformed) transition in odd-even nuclei is presented.

Petrellis, D., E-mail: dimitris.petrellis@yale.edu [Center for Theoretical Physics, Sloane Physics Laboratory, Yale University, New Haven, CT 06520-8120 (United States); Leviatan, A., E-mail: ami@phys.huji.ac.il [Racah Institute of Physics, The Hebrew University, Jerusalem 91904 (Israel); Iachello, F., E-mail: francesco.iachello@yale.edu [Center for Theoretical Physics, Sloane Physics Laboratory, Yale University, New Haven, CT 06520-8120 (United States)

2011-04-15T23:59:59.000Z

Note: This page contains sample records for the topic "rapid transit systems" 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

Leaf seal for transition duct in turbine system  

DOE Patents (OSTI)

A turbine system is disclosed. In one embodiment, the turbine system includes a transition duct. The transition duct includes an inlet, an outlet, and a passage extending between the inlet and the outlet and defining a longitudinal axis, a radial axis, and a tangential axis. The outlet of the transition duct is offset from the inlet along the longitudinal axis and the tangential axis. The transition duct further includes an interface member for interfacing with a turbine section. The turbine system further includes a leaf seal contacting the interface member to provide a seal between the interface member and the turbine section.

Flanagan, James Scott; LeBegue, Jeffrey Scott; McMahan, Kevin Weston; Dillard, Daniel Jackson; Pentecost, Ronnie Ray

2013-06-11T23:59:59.000Z

42

Energy Transitions: A Systems Approach Including Marcellus Shale Gas Development  

E-Print Network (OSTI)

Energy Transitions: A Systems Approach Including Marcellus Shale Gas Development A Report Transitions: A Systems Approach Including Marcellus Shale Gas Development Executive Summary In the 21st the Marcellus shale In addition to the specific questions identified for the case of Marcellus shale gas in New

Angenent, Lars T.

43

Rapid cooling of Cas A as a phase transition in dense QCD  

E-Print Network (OSTI)

We present a model of the compact star in Cassiopea A, which accommodates its unusually fast cooling behavior. This feature is interpreted as due to an enhancement in the neutrino emission triggered by a transition from fully gapped two-flavor color superconducting phase to a crystalline or an alternative gapless color superconducting phase. By fine-tuning a single parameter -- the temperature of this transition - a specific cooling scenario can be selected that fits the Cas A data. Such scenario requires as a prerequisite a massive M ~ 2M_{sun}$ star and is, therefore, distinctive from models invoking canonical 1.4 M_{sun} mass star with nucleonic pairing only.

Sedrakian, Armen

2013-01-01T23:59:59.000Z

44

Rapid cooling of the compact star in Cassiopea A as a phase transition in dense QCD  

E-Print Network (OSTI)

We present a model of the compact star in Cassiopea A that accounts for its unusually fast cooling behavior. This feature is interpreted as an enhancement in the neutrino emission triggered by a transition from a fully gapped, two-flavor, color-superconducting phase to a crystalline phase or an alternative gapless, color-superconducting phase. By fine-tuning a single parameter -- the temperature of this transition -- a specific cooling scenario can be selected that fits the Cas A data. Such a scenario requires a massive $M\\sim 2M_{\\odot}$ star and is, therefore, distinctive from models invoking canonical 1.4 $M_{\\odot}$ mass star with nucleonic pairing alone.

Armen Sedrakian

2013-03-21T23:59:59.000Z

45

Design review report for the SY-101 RAPID mitigation system  

Science Conference Proceedings (OSTI)

This report documents design reviews conducted of the SY-101 Respond And Pump In Days (RAPID) Mitigation System. As part of the SY-101 Surface-Level-Rise Remediation Project, the SY-101 WID Mitigation System will reduce the potential unacceptable consequences of crust growth in Tank 241-SY-101 (SY-101). Projections of the crust growth rate indicate that the waste level in the tank may reach the juncture of the primary and secondary confinement structures of the tank late in 1999. Because of this time constraint, many design activities are being conducted in parallel and design reviews were conducted for system adequacy as well as design implementation throughout the process. Design implementation, as used in this design review report, is the final component selection (e.g., which circuit breaker, valve, or thermocouple) that meets the approved design requirements, system design, and design and procurement specifications. Design implementation includes the necessary analysis, testing, verification, and qualification to demonstrate compliance with the system design and design requirements. Design implementation is outside the scope of this design review. The design activities performed prior to detailed design implementation (i.e., system mission requirements, functional design requirements, technical criteria, system conceptual design, and where design and build contracts were placed, the procurement specification) have been reviewed and are within the scope of this design review report. Detailed design implementation will be controlled, reviewed, and where appropriate, approved in accordance with Tank Waste Remediation System (TWRS) engineering procedures. Review of detailed design implementation will continue until all components necessary to perform the transfer function are installed and tested.

SCHLOSSER, R.L.

1999-05-24T23:59:59.000Z

46

Rapid Response Risk Assessment Turnaround System (R3ATS)  

SciTech Connect

The Rapid Response Risk Assessment Turnaround System (R3ATS) is a decision support system that can be used for cost and schedule risk assessment as prescribed by the US Department of Energy (DOE) Order 413.3A, Program and Project Management for the Acquisition of Capital Assets. Unlike complex and training-intensive project control and accounting risk systems - or naive and statistically incorrect risk assessment approaches - employed throughout the DOE complex R3ATS is a powerful and yet simple decision support system for conducting project risk assessments. Output from R3ATS include: (1) establishing a project risk register which can be periodically updated to regularly monitor and assess a dynamic risk picture, (2) producing statistically derived and justifiable cost and schedule contingency probability density functions, and (3) inclusion, via Bayesian updating, of significant trigger events that result in project cost, schedule or technical risk events. During FY2007, R3ATS was used by the Oak Ridge Transuranic (TRU) Waste Processing Center (TWPC) project to examine the FY 2008 through FY 2009 budget ({approx}$70 million) and the life cycle budget (over $500 million). In less than eight weeks, Oak Ridge DOE personnel and TWPC project management were trained on - and subsequently incorporated - the R3ATS approach thus demonstrating its significance as a viable and rapid turn-around decision support tool for cost and schedule risk assessment. In conclusion: The R3ATS was developed to meet the mission need for a defensible risk-oriented decision support system. We have demonstrated how R3ATS meets DOE ORO budget planning efforts associated with the TWPC life cycle from FY 2008 through FY 2018. We have further identified the critical shortcomings in the entire approach that DOE takes perform risk management. When we realized that DOE guidance for risk management is naive and can easily produce results are not reliable or repeatable, we applied a defensible systems engineering approach to develop R3ATS. The TWPC approach to risk management offers a risk-balancing approach for performance management and ensures that future investment in training enables all users to use risk management as a tool for successful TWPC mission accomplishment. (authors)

Redus, K. [Redus and Associates, LLC, Oak Ridge, Tennessee (United States); Escher, R. [Epsilon Systems Solutions, Inc., Knoxville, TN (United States)

2008-07-01T23:59:59.000Z

47

Plants' Rapid Response System Revealed | Advanced Photon Source  

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

Rewriting the Organofluorine Playbook Rewriting the Organofluorine Playbook Computer-Designed Proteins to Disarm a Variety of Flu Viruses Driving Membrane Curvature Unlocking the Nanoscale Secrets of Bird-Feather Colors An Unlikely Route to Ferroelectricity Science Highlights Archives: 2013 | 2012 | 2011 | 2010 2009 | 2008 | 2007 | 2006 2005 | 2004 | 2003 | 2002 2001 | 2000 | 1998 | Subscribe to APS Science Highlights rss feed Plants' Rapid Response System Revealed JULY 6, 2012 Bookmark and Share Images of several related proteins made at synchrotrons in the U.S. and France have allowed scientists at Washington University in St. Louis and the European Molecular Biology Laboratory in Grenoble, France, to solve the structure of a key piece of the biochemical machinery that allows plants to control the concentrations of circulating hormones. WUSTL graduate student

48

Aromaticity and Antiaromaticity in Transition-Metal Systems  

SciTech Connect

Aromaticity is an important concept in chemistry primarily for hydrocarbon compounds, but it has been extended to compounds containing transition-metal atoms. Recent findings of aromaticity and antiaromaticy in all-metal clusters have stimulated further researches in describing the chemical bonding, structures, and stability in transition-metal clusters and compounds on the basis of aromaticity and antiaromaticity, which are reviewed here. The presence of d-orbitals endows much more diverse chemistry, structure, and chemical bonding to transition-metal clusters and compounds. One interesting feature is the existence of a new type of ?-aromaticity, in addition to ?- and ?-aromaticity that are only possible for main group compounds. Another striking characteristic in the chemical bonding of transition-metal systems is the multi-fold nature of aromaticity, antiaromaticity, or even conflicting aromaticity. Separate sets of counting rules have been proposed for cyclic transition-metal systems to account for the three types of ?-, ?-, and ?-aromaticity/antiaromaticity. The diverse transition-metal clusters and compounds reviewed here indicate that multiple aromaticity and antiaromaticity may be much more common in chemistry than one would anticipate. It is hoped that the current review will stimulate interest in further understanding the structure and bonding, on the basis of aromaticity and antiaromaticity, of other known or unknown transition-metal systems, such as the active sites of enzymes or other biomolecules, which contain transition-metal atoms and clusters.

Zubarev, Dmitry Y.; Averkiev, Boris B.; Zhai, Hua Jin; Wang, Lai S.; Boldyrev, Alexander I.

2008-01-14T23:59:59.000Z

49

Geographic Information System At Walker-Lane Transitional Zone Region  

Open Energy Info (EERE)

Walker-Lane Transitional Zone Region Walker-Lane Transitional Zone Region (Blackwell, Et Al., 2003) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geographic Information System At Walker-Lane Transitional Zone Region (Blackwell, Et Al., 2003) Exploration Activity Details Location Walker-Lane Transition Zone Geothermal Region Exploration Technique Geographic Information System Activity Date Usefulness useful DOE-funding Unknown Notes Developed natural state mass and energy transport fluid flow models of generic Basin and Range systems based on Dixie Valley data that help to understand the nature of large scale constraints on the location and characteristics of the geothermal systems References D. D. Blackwell, K. W. Wisian, M. C. Richards, Mark Leidig, Richard

50

Modification of an Electron Beam Melting System for Rapid Material ...  

Science Conference Proceedings (OSTI)

... and Welding Conditions of Monopile and Transition for Offshore Wind Plant ... Optimization of a New Polycrystalline Superalloy for Industrial Gas Turbines.

51

The Dynamics of Air Transportation System Transition  

E-Print Network (OSTI)

Both U.S. and European Air Transportation Systems face substantial challenges in transforming to meet future demand. This paper uses a feedback model to identify

Mozdzanowska, Aleksandra

52

Agentc: Agent-based system for securing maritime transit  

E-Print Network (OSTI)

Recent rise in maritime piracy prompts the search for novel techniques for addressing the problem. We therefore developed AgentC, a prototype system that demonstrates how agent-based traffic management techniques can be used to improve the security of transit through piracy-affected areas. Combining agent-based modeling and simulation of maritime traffic and novel route planning and vessel scheduling techniques, the system shows the promising potential of agent-based methods for increasing maritime security. Real-world data sources Control and presentation interface (Google Earth) Route planning and scheduling Optimum group transit formation Maritime traffic simulation Maritime environment model Randomized transit routing FSM-based vessel behavior models Optimum transit patrolling Inter-agent communication channels

Michal Jakob; Branislav Bošanský; Michal P?chou?ek

2011-01-01T23:59:59.000Z

53

Algorithmic entropy, phase transition, and smart systems  

Science Conference Proceedings (OSTI)

A smart system exhibits the three important properties: (i) interactive, collective, coordinated and parallel operation (ii) self-organization through emergent properties (iii) adaptive and flexible operation. A hierarchy based on metric entropy is suggested ...

E. V. Krishnamurthy

2003-06-01T23:59:59.000Z

54

Feedback damper system for quadrupole oscillations after transition at RHIC.  

Science Conference Proceedings (OSTI)

The heavy ion beam at RHIC undergoes strong quadrupole oscillations just after it crosses transition, which leads to an increase in bunch length making rebucketing less effective. A feedback system was built to damp these quadrupole oscillations and in this paper the characteristics of the system and the results obtained are presented and discussed.

Abreu,N.; Blaskiewicz, M.; Brennan, J.M.; Schultheiss, C.

2008-06-23T23:59:59.000Z

55

Energy Transitions: A Systems Approach Including Marcellus Shale Gas Development  

E-Print Network (OSTI)

Energy Transitions: A Systems Approach Including Marcellus Shale Gas Development A Report: A Systems Approach Including Marcellus Shale Gas Development Executive Summary In the 21st century new we focused on the case of un- conventional natural gas recovery from the Marcellus shale In addition

Walter, M.Todd

56

Quantum-"classical" correspondence in a nonadiabatic-transition system  

E-Print Network (OSTI)

A nonadiabatic-transition system which exhibits ``quantum chaotic'' behavior [Phys. Rev. E {\\bf 63}, 066221 (2001)] is investigated from quasi-classical aspects. Since such a system does not have a naive classical limit, we take the mapping approach by Stock and Thoss [Phys. Rev. Lett. {\\bf 78}, 578 (1997)] to represent the quasi-classical dynamics of the system. We numerically show that there is a sound correspondence between the quantum chaos and classical chaos for the system.

Fujisaki, H

2004-01-01T23:59:59.000Z

57

Quantum-"classical" correspondence in a nonadiabatic-transition system  

E-Print Network (OSTI)

A nonadiabatic-transition system which exhibits ``quantum chaotic'' behavior [Phys. Rev. E {\\bf 63}, 066221 (2001)] is investigated from quasi-classical aspects. Since such a system does not have a naive classical limit, we take the mapping approach by Stock and Thoss [Phys. Rev. Lett. {\\bf 78}, 578 (1997)] to represent the quasi-classical dynamics of the system. We numerically show that there is a sound correspondence between the quantum chaos and classical chaos for the system.

Hiroshi Fujisaki

2004-01-22T23:59:59.000Z

58

Transitioning to Biofuels: A System-of-Systems Perspective; Preprint  

DOE Green Energy (OSTI)

Using the existing fuel supply chain infrastructure as a framework, this paper discusses a vision for transitioning to a larger biofuels industry and the challenges associated with a massive market and infrastructure transformation.

Riley, C.; Sandor, D.

2008-06-01T23:59:59.000Z

59

Geographic Information System At Walker-Lane Transitional Zone Region  

Open Energy Info (EERE)

Geographic Information System At Walker-Lane Geographic Information System At Walker-Lane Transitional Zone Region (Laney, 2005) Exploration Activity Details Location Walker-Lane Transition Zone Geothermal Region Exploration Technique Geographic Information System Activity Date Usefulness useful regional reconnaissance DOE-funding Unknown Notes Regional Assessment of Exploration Potential for Geothermal Systems in The Great Basin Using a Geographic Information System (GIS) - Part II, Coolbaugh, Zehner, Raines, Shevenell, Minor, Sawatzky and Oppliger. The objective is to generate new exploration targets for both conventional and EGS capable geothermal systems by analyzing regional data in a GIS. Digital geothermal data will be made available to industry and researchers on a web site. Relationships among the data will be explored using spatial

60

Spectral element method in time for rapidly actuated systems  

Science Conference Proceedings (OSTI)

In this paper, the spectral element (SE) method is applied in time to find the entire time-periodic or transient solution of time-dependent differential equations. The time-periodic solution is computed by enforcing periodicity of the element set. Of ... Keywords: 65D30, 65M06, 65M60, 65M70, 74H45, Aeroacoustic, Limit-cycle oscillations, Rapid excitation, Spectral element, Time periodicity, Transient response, Wave equation

Mohammad H. Kurdi; Philip S. Beran

2008-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "rapid transit systems" 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

Rapid parallel systems deployment: techniques for overnight clustering  

Science Conference Proceedings (OSTI)

Automated system deployment frameworks and configuration management systems have been in wide use for a number of years. However, due to increasing pressures to maintain high availability, coupled with the price effects of commodity servers, administrators ...

Donna Cumberland; Randy Herban; Rick Irvine; Michael Shuey; Mathieu Luisier

2008-11-01T23:59:59.000Z

62

Rapid Characterization of Shorelines using a Georeferenced Video Mapping System  

Science Conference Proceedings (OSTI)

Increased understanding of shoreline conditions is needed, yet current approaches are limited in ability to characterize remote areas or document features at a finer resolution. Documentation using video mapping may provide a rapid and repeatable method for assessing the current state of the environment and determining changes to the shoreline over time. In this study, we compare two studies using boat-based, georeferenced video mapping in coastal Washington and the Columbia River Estuary to map and characterize coastal stressors and functional data. In both areas, mapping multiple features along the shoreline required approximation of the coastline. However, characterization of vertically oriented features such as shoreline armoring and small features such as pilings and large woody debris was possible. In addition, end users noted that geovideo provides a permanent record to allow a user to examine recorded video anywhere along a transect or at discrete points.

Anderson, Michael G.; Judd, Chaeli; Marcoe, K.

2012-09-01T23:59:59.000Z

63

Transition to a nuclear/hydrogen energy system.  

DOE Green Energy (OSTI)

The paper explores the motivation for the transition to a nuclear/hydrogen system. For such a transition to be successful the technologies employed must be able to generate enough hydrogen to displace a significant fraction of the petroleum fuels used in the transportation and process heat sectors. This hydrogen must be generated in a manner that is compatible with the environment and independent of foreign fuels. Nuclear energy, along with contributions from wind, solar, and geothermal resources meet the criteria of environmental compatibility and resource independence. However, nuclear energy is the only one of these sources that has a high enough energy density to generate copious quantities of hydrogen. The status of the relevant nuclear and hydrogen technologies are discussed and how they are coupled to bring about a transition to a nuclear/hydrogen system. Should the world adopt such a system then the growth rate of nuclear energy would greatly accelerate. With an accelerated growth for nuclear energy the uranium resources would be depleted in a few decades with the once through fuel cycle currently in use. It is pointed out that deployment of fast breeder reactors would become important in the nearer term.

Walters, L.; Wade, D.; Lewis, D.

2002-08-13T23:59:59.000Z

64

On-line DNA analysis system with rapid thermal cycling  

DOE Patents (OSTI)

This application describes an apparatus particularly suited for subjecting biological samples to any necessary sample preparation tasks, subjecting the sample to rapid thermal cycling, and then subjecting the sample to subsequent on-line analysis using one or more of a number of analytical techniques. The apparatus includes a chromatography device including an injection means, a chromatography pump, and a chromatography column. In addition, the apparatus also contains a capillary electrophoresis device consisting of a capillary electrophoresis column with an inlet and outlet end, a means of injection, and means of applying a high voltage to cause the differential migration of species of interest through the capillary column. Effluent from the liquid chromatography column passes over the inlet end of the capillary electrophoresis column through a tee structure and when the loading of the capillary electrophoresis column is desired, a voltage supply is activated at a precise voltage and polarity over a specific duration to cause sample species to be diverted from the flowing stream to the capillary electrophoresis column. A laser induced fluorescence detector preferably is used to analyze the products separated while in the electrophoresis column. 6 figs.

Swerdlow, H.P.; Wittwer, C.T.

1999-08-10T23:59:59.000Z

65

On-line DNA analysis system with rapid thermal cycling  

DOE Patents (OSTI)

An apparatus particularly suited for subjecting biological samples to any necessary sample preparation tasks, subjecting the sample to rapid thermal cycling, and then subjecting the sample to subsequent on-line analysis using one or more of a number of analytical techniques. The apparatus includes a chromatography device including an injection means, a chromatography pump, and a chromatography column. In addition, the apparatus also contains a capillary electrophoresis device consisting of a capillary electrophoresis column with an inlet and outlet end, a means of injection, and means of applying a high voltage to cause the differential migration of species of interest through the capillary column. Effluent from the liquid chromatography column passes over the inlet end of the capillary electrophoresis column through a tee structure and when the loading of the capillary electrophoresis column is desired, a voltage supply is activated at a precise voltage and polarity over a specific duration to cause sample species to be diverted from the flowing stream to the capillary electrophoresis column. A laser induced fluorescence detector preferably is used to analyze the products separated while in the electrophoresis column.

Swerdlow, Harold P. (Salt Lake City, UT); Wittwer, Carl T. (Salt Lake City, UT)

1999-01-01T23:59:59.000Z

66

Motion Planning for a Direct Metal Deposition Rapid Prototyping System  

SciTech Connect

A motion planning strategy was developed and implemented to generate motion control instructions from solid model data for controlling a robotically driven solid free-form fabrication process. The planning strategy was tested using a PUMA type robot arm integrated into a LENS{trademark} (Laser Engineered Net Shape) system. Previous systems relied on a series of x, y, and z stages, to provide a minimal coordinated motion control capability. This limited the complexity of geometries that could be constructed. With the coordinated motion provided by a robotic arm, the system can produce three dimensional parts by ''writing'' material onto any face of existing material. The motion planning strategy relied on solid model geometry evaluation and exploited robotic positioning flexibility to allow the construction of geometrically complex parts. The integration of the robotic manipulator into the LENS{trademark} system was tested by producing metal parts directly from CAD models.

AMES,ARLO L.; HENSINGER,DAVID M.; KUHLMANN,JOEL L.

1999-10-18T23:59:59.000Z

67

An Automated High-Resolution, Rapidly Relocatable Meteorological Nowcasting and Prediction System  

Science Conference Proceedings (OSTI)

An automated, rapidly relocatable nowcasting and prediction system, whose cornerstone is the full-physics, nested-grid, nonhydrostatic fifth-generation Pennsylvania State University–National Center for Atmospheric Research (PSU–NCAR) Mesoscale ...

Anthony J. Schroeder; David R. Stauffer; Nelson L. Seaman; Aijun Deng; Annette M. Gibbs; Glenn K. Hunter; George S. Young

2006-04-01T23:59:59.000Z

68

RAPOSI: rapidly installable positioning system for indoor environments  

Science Conference Proceedings (OSTI)

RAPOSI is a radio-signal-strength based positioning system for indoor environments. Independent self-localization as well as centralized tracking of light-weight mobile devices is enabled. By omitting typically required a-priori scene analysis, set-up ...

Florian Schreiner; Holger Ziemek

2005-10-01T23:59:59.000Z

69

Design Review Closure Report for the SY-101 Rapid Transfer System  

SciTech Connect

The purpose of this report, is to document closure of design review open items, resulting from design reviews conducted for the SY-101 Respond And Pump In Days (RAPID) Transfer System. Results of the various design reviews were documented in the Design Review Report for The SY-101 Rapid Mitigation System, HNF-4519. In that report, twenty-three open items were identified. In this report the 23 items are reviewed and statused.

POWELL, W.J.

1999-11-29T23:59:59.000Z

70

Fuel cell system logic for differentiating between rapid and normal shutdown commands  

DOE Green Energy (OSTI)

A method of controlling the operation of a fuel cell system wherein each shutdown command for the system is subjected to decision logic which determines whether the command should be a normal shutdown command or rapid shutdown command. If the logic determines that the shutdown command should be a normal shutdown command, then the system is shutdown in a normal step-by-step process in which the hydrogen stream is consumed within the system. If the logic determines that the shutdown command should be a rapid shutdown command, the hydrogen stream is removed from the system either by dumping to atmosphere or routing to storage.

Keskula, Donald H. (Webster, NY); Doan, Tien M. (Columbia, MD); Clingerman, Bruce J. (Palmyra, NY)

2000-01-01T23:59:59.000Z

71

Symmetry Reduction for SAT Representations of Transition Systems Jussi Rintanen  

E-Print Network (OSTI)

the symmetric states at given time points, but to order the sequences of transitions. Tran- sition sequences can be eliminated by order- ing transition sequences, as transition relations that are not symmetric in some states from transition sequences also removes all sym- metry from the sequences of states these sequences

Nebel, Bernhard

72

Assessing the Energy Efficiency of Small Transit Systems; A Case Study of the Miami Metro Bus Service.  

E-Print Network (OSTI)

??In the recent past there has been an emphasis on energy and fuel efficiency in transit systems across the United States. Transit systems continue to… (more)

Kazungu, Conny Sidi

2012-01-01T23:59:59.000Z

73

Mesoscale to Submesoscale Transition in the California Current System. Part III: Energy Balance and Flux  

Science Conference Proceedings (OSTI)

This is the last of a suite of three papers about the transition that occurs in numerical simulations for an idealized equilibrium, subtropical, eastern-boundary upwelling current system similar to the California Current. The transition is mainly ...

X. Capet; J. C. McWilliams; M. J. Molemaker; A. F. Shchepetkin

2008-10-01T23:59:59.000Z

74

Phase transitions in a mechanical system coupled to Glauber spins  

E-Print Network (OSTI)

A harmonic oscillator linearly coupled with a linear chain of Ising spins is investigated. The $N$ spins in the chain interact with their nearest neighbours with a coupling constant proportional to the oscillator position and to $N^{-1/2}$, are in contact with a thermal bath at temperature $T$, and evolve under Glauber dynamics. The oscillator position is a stochastic process due to the oscillator-spin interaction which produces drastic changes in the equilibrium behaviour and the dynamics of the oscillator. Firstly, there is a second order phase transition at a critical temperature $T_c$ whose order parameter is the oscillator stable rest position: this position is zero above $T_c$ and different from zero below $T_c$. This transition appears because the oscillator moves in an effective potential equal to the harmonic term plus the free energy of the spin system at fixed oscillator position. Secondly, assuming fast spin relaxation (compared to the oscillator natural period), the oscillator dynamical behaviour is described by an effective equation containing a nonlinear friction term that drives the oscillator towards the stable equilibrium state of the effective potential. The analytical results are compared with numerical simulation throughout the paper.

A. Prados; L. L. Bonilla; A. Carpio

2010-04-19T23:59:59.000Z

75

Multi Optical Transition Radiation System for ATF2  

SciTech Connect

In this paper we describe the design, installation and first calibration tests of a Multi Optical Transition Radiation System in the beam diagnostic section of the Extraction (EXT) line of ATF2, close to the multi wire scanner system. This system will be a valuable tool for measuring beam sizes and emittances coming from the ATF Damping Ring. With an optical resolution of about 2 {micro}m an original OTR design (OTR1X) located after the septum at the entrance of the EXT line demonstrated the ability to measure a 5.5 {micro}m beam size in one beam pulse and to take many fast measurements. This gives the OTR the ability to measure the beam emittance with high statistics, giving a low error and a good understanding of emittance jitter. Furthermore the nearby wire scanners will be a definitive test of the OTR as a beam emittance diagnostic device. The multi-OTR system design proposed here is based on the existing OTR1X.

Alabau-Gonzalvo, Javier; /Valencia U., IFIC; Blanch Gutierrez, Cesar; /Valencia U., IFIC; Civera, Jose Vicente; /Valencia U., IFIC; Faus-Golfe, Angeles; /Valencia U., IFIC; Garcia-Garrigos, Juan; /Valencia U., IFIC; Cruz, Juan; /SLAC; McCormick, Douglas; /SLAC; White, Glen; /SLAC

2012-07-13T23:59:59.000Z

76

A Microelectromechanical High-Density Energy Storage/Rapid Release System  

DOE Green Energy (OSTI)

One highly desirable characteristic of electrostatically driven microelectromechanical systems (MEMS) is that they consume very little power. The corresponding drawback is that the force they produce may be inadequate for many applications. It has previously been demonstrated that gear reduction units or microtransmissions can substantially increase the torque generated by microengines. Operating speed, however, is also reduced by the transmission gear ratio. Some applications require both high speed and high force. If this output is only required for a limited period of time, then energy could be stored in a mechanical system and rapidly released upon demand. We have designed, fabricated, and demonstrated a high-density energy storage/rapid release system that accomplishes this task. Built using a 5-level surface micromachining technology, the assembly closely resembles a medieval crossbow. Energy releases on the order of tens of nanojoules have already been demonstrated, and significantly higher energy systems are under development.

Rodgers, M. Steven; Allen, Jim J.; Meeks, Kent D.; Jensen, Brian D.; Miller, Sam L.

1999-07-21T23:59:59.000Z

77

A highly portable, rapidly deployable system for eddy covariance measurements of CO2 fluxes  

DOE Green Energy (OSTI)

To facilitate the study of flux heterogeneity within a region, the authors have designed, built, and field-tested a highly portable, rapidly deployable, eddy covariance CO{sub 2} flux measurement system. The system is built from off-the-shelf parts and was assembled at a minimal cost. The unique combination of features of this system allow for a very rapid deployment with a minimal number of field personnel. The system is capable of making high precision, unattended measurements of turbulent CO{sub 2} fluxes, latent heat (LE) fluxes, sensible heat fluxes (H), and momentum transfer fluxes. In addition, many of the meteorological and ecosystem variables necessary for quality control of the fluxes and for running ecosystem models are measured. A side-by-side field comparison of the system at a pair of established AmeriFlux sites has verified that, for single measurements, the system is capable of CO{sub 2} flux accuracy of about {+-} 1.2 {micro}mole/m{sup 2}/sec, LE flux accuracy of about {+-} 15 Watts/m{sup 2}, H flux accuracy of about {+-} 7 Watts/m{sup 2}, and momentum transfer flux accuracy of about {+-} 11 gm-m/sec/sec. System deployment time is between 2 and 4 hours by a single person. The system was measured to draw between 30 and 35 Watts of power and may be run from available line power, storage batteries, or solar panels.

Billesbach, David P.; Fischer, Marc L.; Torn, Margaret S.; Berry, Joe A.

2001-09-19T23:59:59.000Z

78

Rail Transit Investments, Real Estate Values, and Land Use Change: A Comparative Analysis of Five California Rail Transit Systems  

E-Print Network (OSTI)

Paswell, Robert E. 1983. "Rail Transit Investment and CBDCervero, Robert. 1993. "Rail Transit and Jsmt Development.Assessing the hpacts of Urban Rail Transit: on Local Real

Landis, John; Guhathakurta, Subhrajit; Huang, William; Zhang, Ming

1995-01-01T23:59:59.000Z

79

SmartBRT: A Tool for Simulating, Visualizing, and Evaluating Bus Rapid Transit Systems  

E-Print Network (OSTI)

gas stationof building: Building and Gas Station. Texture is a picturelook like buildings or gas stations. Building type has front

VanderWerf, Joel

2005-01-01T23:59:59.000Z

80

Contactless prepaid and bankcards in transit fare collection systems  

E-Print Network (OSTI)

Many public transit agencies are considering direct acceptance of contactless credit and debit cards (collectively contactless bankcards) at gates in rail stations and on board buses. Concerns have been raised about riders ...

Brakewood, Candace Elizabeth

2010-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "rapid transit systems" 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

A Regional GSI-based Ensemble Kalman Filter Data Assimilation System for the Rapid Refresh Configuration: Testing at Reduced Resolution  

Science Conference Proceedings (OSTI)

A regional ensemble Kalman filter (EnKF) system is established for potential Rapid Refresh (RAP) operational application. The system borrows data processing and observation operators from the Grid-point Statistical Interpolation (GSI), and ...

Kefeng Zhu; Yujie Pan; Ming Xue; Xuguang Wang; Jeffrey S. Whitaker; Stanley G. Benjamin; Stephen S. Weygandt; Ming Hu

82

Visualizing microbial pollution in Santa Monica Bay with Geographic Information Systems (GIS) and through field-testing a rapid, robust, field-portable water detection sensing system  

E-Print Network (OSTI)

hic Information Systems (GIS) and Through Field - testing aEngineering, UCLA Introduction: GIS and rapid detection:water quality characterizi ng GIS is a powerful mapping tool

2009-01-01T23:59:59.000Z

83

Optimizing the use of public transit system during no-notice evacuation of urban areas  

Science Conference Proceedings (OSTI)

This paper proposes a methodology that can be used to design plans for evacuating transit-dependent citizens during no-notice disasters. A mixed-integer linear program is proposed to model the problem of finding optimal evacuation routes. The objective ... Keywords: Emergency evacuation, Mixed-integer linear programming, No-notice disasters, Public transit system

Fatemeh Sayyady; Sandra D. Eksioglu

2010-11-01T23:59:59.000Z

84

Operator awareness of system status during Fast Flux Test Facility transition to standby  

Science Conference Proceedings (OSTI)

A facility in transition, due to a change in its mission or its operating status, begins to depart from a previously well-defined normal mode of operation. The equipment becomes reconfigured or deactivated. In an environment of transition, the Fast Flux Test Facility (FFTF) has employed methods to enhance operator awareness of system status. These methods are described in this report.

Gibson, J.L.

1994-04-01T23:59:59.000Z

85

Spin-Orbit Alignment of the TrES-4 Transiting Planetary System and Possible Additional Radial-Velocity Variation  

E-Print Network (OSTI)

We report new radial velocities of the TrES-4 transiting planetary system, including observations of

Narita, Norio

86

The Design of a RapidDischarge Varistor System for the MICE Magnet Circuits  

SciTech Connect

The need for a magnet circuit discharge system, in order to protect the magnet HTS leads during a power failure, has been discussed in recent MICE reports [1], [2]. In order to rapidly discharge a magnet, one has to put enough resistance across the lead. The resistance in this case is varistor that is put across the magnet in the event of a power outage. The resistance consists of several diodes, which act as constant voltage resistors and the resistance of the cables connecting the magnets in the circuit to each other and to the power supply. In order for the rapid discharge system to work without quenching the magnets, the voltage across the magnets must be low enough so that the diodes in the quench protection circuit don't fire and cause the magnet current to bypass the superconducting coils. It is proposed that six rapid discharge varistors be installed across the three magnet circuits the power the tracker solenoids, which are connected in series. The focusing magnets, which are also connected in series would have three varistors (one for each magnet). The coupling magnets would have a varistor for each magnet. The peak voltage that is allowed per varistor depends on the number of quench protection diodes that make up the quench protection circuit for each magnet coil circuit. It is proposed that the varistors be water cooled as the magnet circuits are being discharged through them. The water cooling circuit can be supplied with tap water. The tap water flows only when the varistor temperature reaches a temperature of 45 C.

Green, Michael A.

2008-07-23T23:59:59.000Z

87

Mesoscale to Submesoscale Transition in the California Current System. Part II: Frontal Processes  

Science Conference Proceedings (OSTI)

This is the second of three papers investigating the regime transition that occurs in numerical simulations for an idealized, equilibrium, subtropical, eastern boundary, upwelling current system similar to the California Current. The emergent ...

X. Capet; J. C. McWilliams; M. J. Molemaker; A. F. Shchepetkin

2008-01-01T23:59:59.000Z

88

Transitions from Hadley to Rossby Flows in Internally Forced Rotating Spherical Systems  

Science Conference Proceedings (OSTI)

The possibility of global-scale transitions between atmospheric Hadley and Rossby regimes is investigated with a highly idealized, nonlinear, vertically continuous, rotating, spherical system. Low-order spectral versions of the model are used ...

R. Wayne Higgins; Hampton N. Shirer

1990-05-01T23:59:59.000Z

89

Rail Transit Investments, Real Estate Values, and Land Use Change: A Comparative Analysis of Five California Rail Transit Systems  

E-Print Network (OSTI)

findings of this research: Proximity to rail mass transit isunderlying this research is whether urban rail transitunderlying this research is whether urban rail transit

Landis, John; Guhathakurta, Subhrajit; Huang, William; Zhang, Ming; Fukuji, Bruce

1995-01-01T23:59:59.000Z

90

Process for preparing high-transition-temperature superconductors in the Nb-Al-Ge system  

DOE Patents (OSTI)

The patent describes a process for preparing superconducting materials in the Nb-Al-Ge system having transition temperatures in excess of 19K. The process comprises premixing powdered constituents, pressing them into a plug, heating the plug to 1,450-1,800C for 30 minutes to an hour under vacuum or an inert atmosphere, and annealing at moderate temperatures for reasonably long times (approximately 50 hours). High transition-temperature superconductors, including those in the Nb3(Al,Ge) system, prepared in accordance with this process exhibit little degradation in the superconducting transition temperature on being ground to -200 mesh powder. (GRA)

Giorgi, A.L.; Szklarz, E.G.

1973-01-30T23:59:59.000Z

91

A rapid whole genome sequencing and analysis system supporting genomic epidemiology (7th Annual SFAF Meeting, 2012)  

Science Conference Proceedings (OSTI)

Michael FitzGerald on "A rapid whole genome sequencing and analysis system supporting genomic epidemiology" at the 2012 Sequencing, Finishing, Analysis in the Future Meeting held June 5-7, 2012 in Santa Fe, New Mexico.

FitzGerald, Michael [Broad Institute

2012-06-01T23:59:59.000Z

92

Energy Transitions/Marcellus White Paper September 22, 2010 version A Systems Research Approach to Regional Energy  

E-Print Network (OSTI)

Energy Transitions/Marcellus White Paper September 22, 2010 version Page 1 A Systems Research Approach to Regional Energy Transitions: The Case of Marcellus Shale Gas Development White Paper A Report/Marcellus White Paper September 22, 2010 version Page 2 A Systems Research Approach to Regional Energy Transitions

Wang, Z. Jane

93

Transit Timing Observations from Kepler: III. Confirmation of 4 Multiple Planet Systems by a Fourier-Domain Study of Anti-correlated Transit Timing Variations  

SciTech Connect

We present a method to confirm the planetary nature of objects in systems with multiple transiting exoplanet candidates. This method involves a Fourier-domain analysis of the deviations in the transit times from a constant period that result from dynamical interactions within the system. The combination of observed anticorrelations in the transit times and mass constraints from dynamical stability allow us to claim the discovery of four planetary systems, Kepler-25, Kepler-26, Kepler-27 and Kepler-28, containing eight planets and one additional planet candidate.

Steffen, Jason H.; /Fermilab; Fabrycky, Daniel C.; /Lick Observ.; Ford, Eric B.; /Florida U.; Carter, Joshua A.; /Harvard-Smithsonian Ctr. Astrophys.; Fressin, Francois; /Harvard-Smithsonian Ctr. Astrophys.; Holman, Matthew J.; /Harvard-Smithsonian Ctr. Astrophys.; Lissauer, Jack J.; /NASA, Ames; Rowe, Jason F.; /SETI Inst., Mtn. View /NASA, Ames; Ragozzine, Darin; /Harvard-Smithsonian Ctr. Astrophys.; Welsh, William F.; /Caltech; Borucki, William J.; /NASA, Ames /UC, Santa Barbara

2012-01-01T23:59:59.000Z

94

A Dynamical Systems Approach Towards Modeling the Rapid Pressure Strain Correlation  

E-Print Network (OSTI)

In this study, the behavior of pressure in the Rapid Distortion Limit, along with its concomitant modeling, are addressed. In the first part of the work, the role of pressure in the initiation, propagation and suppression of flow instabilities for quadratic flows is analyzed. The paradigm of analysis considers the Reynolds stress transport equations to govern the evolution of a dynamical system, in a state space composed of the Reynolds stress tensor components. This dynamical system is scrutinized via the identification of the invariant sets and the bifurcation analysis. The changing role of pressure in quadratic flows, viz. hyperbolic, shear and elliptic, is established mathematically and the underlying physics is explained. Along the maxim of "understanding before prediction", this allows for a deeper insight into the behavior of pressure, thus aiding in its modeling. The second part of this work deals with Rapid Pressure Strain Correlation modeling in earnest. Based on the comprehension developed in the preceding section, the classical pressure strain correlation modeling approaches are revisited. Their shortcomings, along with their successes, are articulated and explained, mathematically and from the viewpoint of the governing physics. Some of the salient issues addressed include, but are not limited to, the requisite nature of the model, viz. a linear or a nonlinear structure, the success of the extant models for hyperbolic flows, their inability to capture elliptic flows and the use of RDT simulations to validate models. Through this analysis, the schism between mathematical and physical guidelines and the engineering approach, at present, is substantiated. Subsequently, a model is developed that adheres to the classical modeling framework and shows excellent agreement with the RDT simulations. The performance of this model is compared to that of other nominations prevalent in engineering simulations. The work concludes with a summary, pertinent observations and recommendations for future research in the germane field.

Mishra, Aashwin A.

2010-05-01T23:59:59.000Z

95

Solid-solid collapse transition in a two dimensional model molecular system  

E-Print Network (OSTI)

Solid-solid collapse transition in open framework structures is ubiquitous in nature. The real difficulty in understanding detailed microscopic aspects of such transitions in molecular systems arises from the interplay between different energy and length scales involved in molecular systems, often mediated through a solvent. In this work we employ Monte Carlo (MC) simulations to study the collapse transition in a model molecular system interacting via both isotropic as well as anisotropic interactions having different length and energy scales. The model we use is known as Mercedes-Benz (MB) which for a specific set of parameters sustains three solid phases: honeycomb, oblique and triangular. In order to study the temperature induced collapse transition, we start with a metastable honeycomb solid and induce transition by heating. High density oblique solid so formed has two characteristic length scales corresponding to isotropic and anisotropic parts of interaction potential. Contrary to the common believe and classical nucleation theory, interestingly, we find linear strip-like nucleating clusters having significantly different order and average coordination number than the bulk stable phase. In the early stage of growth, the cluster grows as linear strip followed by branched and ring-like strips. The geometry of growing cluster is a consequence of the delicate balance between two types of interactions which enables the dominance of stabilizing energy over the destabilizing surface energy. The nuclei of stable oblique phase are wetted by intermediate order particles which minimizes the surface free energy. We observe different pathways for pressure and temperature induced transitions.

Rakesh S. Singh; Biman Bagchi

2013-04-11T23:59:59.000Z

96

Transition to cloud computing in healthcare information systems  

E-Print Network (OSTI)

This thesis is a study on the adoption of cloud computing in healthcare information technology industry. It provides a guideline for people who are trying to bring cloud computing into healthcare information systems through ...

Ren, Haiying, S.M. Massachusetts Institute of Technology

2012-01-01T23:59:59.000Z

97

Width bifurcation and dynamical phase transitions in open quantum systems  

E-Print Network (OSTI)

The states of an open quantum system are coupled via the environment of scattering wavefunctions. The complex coupling coefficients $\\omega$ between system and environment arise from the principal value integral and the residuum. At high level density where the resonance states overlap, the dynamics of the system is determined by exceptional points. At these points, the eigenvalues of two states are equal and the corresponding eigenfunctions are linearly dependent. It is shown in the present paper that Im$(\\omega)$ and Re$(\\omega)$ influence the system properties differently in the surrounding of exceptional points. Controlling the system by a parameter, the eigenvalues avoid crossing in energy near an exceptional point under the influence of Re$(\\omega)$ in a similar manner as it is well known from discrete states. Im$(\\omega)$ however leads to width bifurcation and finally (when the system is coupled to one channel, i.e. to a common continuum of scattering wavefunctions), to a splitting of the system into two parts with different characteristic time scales. Physically, the system is stabilized by this splitting since the lifetimes of most ($N-1$) states are longer than before while that of only one state is shorter. In the cross section the short-lived state appears as a background term in high-resolution experiments. The wavefunctions of the long-lived states are mixed in those of the original ones in a comparably large parameter range. Numerical results for the eigenvalues and eigenfunctions are shown for $N=2, ~4$ and 10 states coupled mostly to 1 channel.

Hichem Eleuch; Ingrid Rotter

2013-03-26T23:59:59.000Z

98

Process planning for an Additive/Subtractive Rapid Pattern Manufacturing system.  

E-Print Network (OSTI)

??This dissertation presents a rapid manufacturing process for sand casting patterns using a hybrid additive/subtractive approach. This includes three major areas of research that will… (more)

Luo, Xiaoming

2009-01-01T23:59:59.000Z

99

Theory of quantum metal to superconductor transitions in highly conducting systems  

SciTech Connect

We derive the theory of the quantum (zero temperature) superconductor to metal transition in disordered materials when the resistance of the normal metal near criticality is small compared to the quantum of resistivity. This can occur most readily in situations in which 'Anderson's theorem' does not apply. We explicitly study the transition in superconductor-metal composites, in an swave superconducting film in the presence of a magnetic field, and in a low temperature disordered d-wave superconductor. Near the point of the transition, the distribution of the superconducting order parameter is highly inhomogeneous. To describe this situation we employ a procedure which is similar to that introduced by Mott for description of the temperature dependence of the variable range hopping conduction. As the system approaches the point of the transition from the metal to the superconductor, the conductivity of the system diverges, and the Wiedemann-Franz law is violated. In the case of d-wave (or other exotic) superconductors we predict the existence of (at least) two sequential transitions as a function of increasing disorder: a d-wave to s-wave, and then an s-wave to metal transition.

Spivak, B.

2010-04-06T23:59:59.000Z

100

Combined Use of Residual Dipolar Couplings and Solution X-ray Scattering To Rapidly Probe Rigid-Body Conformational Transitions in a Non-phosphorylatable Active-Site Mutant of the 128 kDa Enzyme I Dimer  

Science Conference Proceedings (OSTI)

The first component of the bacterial phosphotransferase system, enzyme I (EI), is a multidomain 128 kDa dimer that undergoes large rigid-body conformational transitions during the course of its catalytic cycle. Here we investigate the solution structure of a non-phosphorylatable active-site mutant in which the active-site histidine is substituted by glutamine. We show that perturbations in the relative orientations and positions of the domains and subdomains can be rapidly and reliably determined by conjoined rigid-body/torsion angle/Cartesian simulated annealing calculations driven by orientational restraints from residual dipolar couplings and shape and translation information afforded by small- and wide-angle X-ray scattering. Although histidine and glutamine are isosteric, the conformational space available to a Gln side chain is larger than that for the imidazole ring of His. An additional hydrogen bond between the side chain of Gln189 located on the EIN{sup {alpha}/{beta}} subdomain and an aspartate (Asp129) on the EIN{sup {alpha}} subdomain results in a small ({approx}9{sup o}) reorientation of the EIN{sup {alpha}} and EIN{sup {alpha}/{beta}} subdomains that is in turn propagated to a larger reorientation ({approx}26{sup o}) of the EIN domain relative to the EIC dimerization domain, illustrating the positional sensitivity of the EIN domain and its constituent subdomains to small structural perturbations.

Takayama, Yuki; Schwieters, Charles D.; Grishaev, Alexander; Ghirlando, Rodolfo; Clore, G. Marius (NIH)

2012-10-23T23:59:59.000Z

Note: This page contains sample records for the topic "rapid transit systems" 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

Using System Dynamics to Model the Transition to Biofuels in the United States: Preprint  

DOE Green Energy (OSTI)

Transitioning to a biofuels industry that is expected to displace about 30% of current U.S. gasoline consumption requires a robust biomass-to-biofuels system-of-systems that operates in concert with the existing markets. This paper discusses employing a system dynamics approach to investigate potential market penetration scenarios for cellulosic ethanol and to help government decision makers focus on areas with greatest potential.

Bush, B.; Duffy, M.; Sandor, D.; Peterson, S.

2008-06-01T23:59:59.000Z

102

Toward tsunami early warning system in Indonesia by using rapid rupture durations estimation  

Science Conference Proceedings (OSTI)

Indonesia has Indonesian Tsunami Early Warning System (Ina-TEWS) since 2008. The Ina-TEWS has used automatic processing on hypocenter; Mwp, Mw (mB) and Mj. If earthquake occurred in Ocean, depth 7, then Ina-TEWS announce early warning that the earthquake can generate tsunami. However, the announcement of the Ina-TEWS is still not accuracy. Purposes of this research are to estimate earthquake rupture duration of large Indonesia earthquakes that occurred in Indian Ocean, Java, Timor sea, Banda sea, Arafura sea and Pasific ocean. We analyzed at least 330 vertical seismogram recorded by IRIS-DMC network using a direct procedure for rapid assessment of earthquake tsunami potential using simple measures on P-wave vertical seismograms on the velocity records, and the likelihood that the high-frequency, apparent rupture duration, T{sub dur}. T{sub dur} can be related to the critical parameters rupture length (L), depth (z), and shear modulus ({mu}) while T{sub dur} may be related to wide (W), slip (D), z or {mu}. Our analysis shows that the rupture duration has a stronger influence to generate tsunami than Mw and depth. The rupture duration gives more information on tsunami impact, Mo/{mu}, depth and size than Mw and other currently used discriminants. We show more information which known from the rupture durations. The longer rupture duration, the shallower source of the earthquake. For rupture duration greater than 50 s, the depth less than 50 km, Mw greater than 7, the longer rupture length, because T{sub dur} is proportional L and greater Mo/{mu}. Because Mo/{mu} is proportional L. So, with rupture duration information can be known information of the four parameters. We also suggest that tsunami potential is not directly related to the faulting type of source and for events that have rupture duration greater than 50 s, the earthquakes generated tsunami. With available real-time seismogram data, rapid calculation, rupture duration discriminant can be completed within 4-5 min after an earthquake occurs and thus can aid in effective, accuracy and reliable tsunami early warning for Indonesia region.

Madlazim [Physics Department, Faculty Mathematics and Sciences of Surabaya State University (UNESA) Jl. Ketintang, Surabaya 60231 (Indonesia)

2012-06-20T23:59:59.000Z

103

Transit Timing Observations from Kepler: IV. Confirmation of 4 Multiple Planet Systems by Simple Physical Models  

SciTech Connect

Eighty planetary systems of two or more planets are known to orbit stars other than the Sun. For most, the data can be sufficiently explained by non-interacting Keplerian orbits, so the dynamical interactions of these systems have not been observed. Here we present 4 sets of lightcurves from the Kepler spacecraft, which each show multiple planets transiting the same star. Departure of the timing of these transits from strict periodicity indicates the planets are perturbing each other: the observed timing variations match the forcing frequency of the other planet. This confirms that these objects are in the same system. Next we limit their masses to the planetary regime by requiring the system remain stable for astronomical timescales. Finally, we report dynamical fits to the transit times, yielding possible values for the planets masses and eccentricities. As the timespan of timing data increases, dynamical fits may allow detailed constraints on the systems architectures, even in cases for which high-precision Doppler follow-up is impractical.

Fabrycky, Daniel C.; /UC, Santa Cruz; Ford, Eric B.; /Florida U.; Steffen, Jason H.; /Fermilab; Rowe, Jason F.; /SETI Inst., Mtn. View /NASA, Ames; Carter, Joshua A.; /Harvard-Smithsonian Ctr. Astrophys.; Moorhead, Althea V.; /Florida U.; Batalha, Natalie M.; /San Jose State U.; Borucki, William J.; /NASA, Ames; Bryson, Steve; /NASA, Ames; Buchhave, Lars A.; /Bohr Inst. /Copenhagen U.; Christiansen, Jessie L.; /SETI Inst., Mtn. View /NASA, Ames /Caltech

2012-01-01T23:59:59.000Z

104

PHYSICAL PROPERTIES OF THE 0.94-DAY PERIOD TRANSITING PLANETARY SYSTEM WASP-18  

SciTech Connect

We present high-precision photometry of five consecutive transits of WASP-18, an extrasolar planetary system with one of the shortest orbital periods known. Through the use of telescope defocusing we achieve a photometric precision of 0.47-0.83 mmag per observation over complete transit events. The data are analyzed using the JKTEBOP code and three different sets of stellar evolutionary models. We find the mass and radius of the planet to be M {sub b} = 10.43 +- 0.30 +- 0.24 M {sub Jup} and R {sub b} = 1.165 +- 0.055 +- 0.014 R {sub Jup} (statistical and systematic errors), respectively. The systematic errors in the orbital separation and the stellar and planetary masses, arising from the use of theoretical predictions, are of a similar size to the statistical errors and set a limit on our understanding of the WASP-18 system. We point out that seven of the nine known massive transiting planets (M {sub b} > 3 M {sub Jup}) have eccentric orbits, whereas significant orbital eccentricity has been detected for only four of the 46 less-massive planets. This may indicate that there are two different populations of transiting planets, but could also be explained by observational biases. Further radial velocity observations of low-mass planets will make it possible to choose between these two scenarios.

Southworth, John; Anderson, D. R.; Maxted, P. F. L. [Astrophysics Group, Keele University, Newcastle-under Lyme, ST5 5BG (United Kingdom); Hinse, T. C. [Armagh Observatory, College Hill, Armagh, BT61 9DG (United Kingdom); Dominik, M.; Mathiasen, M.; Browne, P. [SUPA, University of St. Andrews, School of Physics and Astronomy, North Haugh, St. Andrews, KY16 9SS (United Kingdom); Glitrup, M. [Department of Physics and Astronomy, Aarhus University, Ny Munkegade, 8000 Aarhus C (Denmark); Joergensen, U. G.; Harpsoee, K. [Niels Bohr Institute and Centre for Star and Planet Formation, University of Copenhagen, Juliane Maries vej 30, 2100 Copenhagen Oe (Denmark); Liebig, C.; Maier, G. [Astronomisches Rechen-Institut, Zentrum fuer Astronomie, Universitaet Heidelberg, Moenchhofstrasse 12-14, 69120 Heidelberg (Germany); Bozza, V.; Calchi Novati, S.; Mancini, L. [Dipartimento di Fisica 'E. R. Caianiello', Universita di Salerno, Baronissi (Italy); Burgdorf, M. [Deutsches SOFIA Institut, NASA Ames Research Center, Mail Stop 211-3, Moffett Field, CA 94035 (United States); Dreizler, S.; Hessman, F.; Hundertmark, M. [Institut fuer Astrophysik, Georg-August-Universitaet Goettingen, Friedrich-Hund-Platz 1, 37077 Goettingen (Germany); Finet, F., E-mail: jkt@astro.keele.ac.u [Institut d'Astrophysique et de Geophysique, Universite de Liege, 4000 Liege (Belgium)

2009-12-10T23:59:59.000Z

105

A Mobile Rapid-Scanning X-band Polarimetric (RaXPol) Doppler Radar System  

Science Conference Proceedings (OSTI)

A novel, rapid-scanning, X-band (3-cm wavelength), polarimetric (RaXPol), mobile radar was developed for severe-weather research. The radar employs a 2.4-m-diameter dual-polarized parabolic dish antenna on a high-speed pedestal capable of rotating ...

Andrew L. Pazmany; James B. Mead; Howard B. Bluestein; Jeffrey C. Snyder; Jana B. Houser

2013-07-01T23:59:59.000Z

106

EVIDENCE OF POSSIBLE SPIN-ORBIT MISALIGNMENT ALONG THE LINE OF SIGHT IN TRANSITING EXOPLANET SYSTEMS  

SciTech Connect

Of the 26 transiting exoplanet systems with measurements of the Rossiter-McLaughlin (RM) effect, eight have now been found to be significantly spin-orbit misaligned in the plane of the sky (i.e., RM misalignment angle |{lambda}| {approx}> 30{sup 0} and inconsistent with {lambda} = 0{sup 0}). Unfortunately, the RM effect does not constrain the complement misalignment angle between the orbit of the planet and the spin of its host star along the line of sight (LOS). I use a simple model of stellar rotation benchmarked with observational data to statistically identify 10 exoplanet systems from a sample of 75 for which there is likely a significant degree of spin-orbit misalignment along the LOS: HAT-P-7, HAT-P-14, HAT-P-16, HD 17156, Kepler-5, Kepler-7, TrES-4, WASP-1, WASP-12, and WASP-14. All 10 systems have host stellar masses M {sub *} in the range 1.2 M {sub sun} {approx}< M {sub *} {approx}< 1.5 M {sub sun}, and the probability of this occurrence by chance is less than one in ten thousand. In addition, the planets in the candidate-misaligned systems are preferentially massive and eccentric. The coupled distribution of misalignment from the RM effect and from this analysis suggests that transiting exoplanets are more likely to be spin-orbit aligned than expected given predictions for a transiting planet population produced entirely by planet-planet scattering or Kozai cycles and tidal friction. For that reason, there are likely two populations of close-in exoplanet systems: a population of aligned systems and a population of apparently misaligned systems in which the processes that lead to misalignment or to the survival of misaligned systems operate more efficiently in systems with massive stars and planets.

Schlaufman, Kevin C., E-mail: kcs@ucolick.or [Astronomy and Astrophysics Department, University of California, Santa Cruz, CA 95064 (United States)

2010-08-10T23:59:59.000Z

107

Rapid Deployment Drilling System for on-site inspections under a Comprehensive Test Ban Preliminary Engineering Design  

Science Conference Proceedings (OSTI)

While not a new drilling technology, coiled-tubing (CT) drilling continues to undergo rapid development and expansion, with new equipment, tools and procedures developed almost daily. This project was undertaken to: analyze available technological options for a Rapid Deployment Drilling System (RDDS) CT drilling system: recommend specific technologies that best match the requirements for the RDDS; and highlight any areas where adequate technological solutions are not currently available. Postshot drilling is a well established technique at the Nevada Test Site (NTS). Drilling provides essential data on the results of underground tests including obtaining samples for the shot zone, information on cavity size, chimney dimensions, effects of the event on surrounding material, and distribution of radioactivity.

Maurer, W.C.; Deskins, W.G.; McDonald, W.J.; Cohen, J.H. [Maurer Engineering, Inc., Houston, TX (United States); Heuze, F.E.; Butler, M.W. [Lawrence Livermore National Lab., CA (United States)

1996-09-01T23:59:59.000Z

108

The Rossiter-McLaughlin effect and analytic radial velocity curves for transiting extrasolar planetary systems  

E-Print Network (OSTI)

A transiting extrasolar planet sequentially blocks off the light coming from the different parts of the disk of the host star in a time dependent manner. Due to the spin of the star, this produces an asymmetric distortion in the line profiles of the stellar spectrum, leading to an apparent anomaly of the radial velocity curves, known as the Rossiter - McLaughlin effect. Here, we derive approximate but accurate analytic formulae for the anomaly of radial velocity curves taking account of the stellar limb darkening. The formulae are particularly useful in extracting information of the projected angle between the planetary orbit axis and the stellar spin axis, \\lambda, and the projected stellar spin velocity, V sin I_s. We create mock samples for the radial curves for the transiting extrasolar system HD209458, and demonstrate that constraints on the spin parameters (V sin I_s, \\lambda) may be significantly improved by combining our analytic template formulae and the precision velocity curves from high-resolution spectroscopic observations with 8-10 m class telescopes. Thus future observational exploration of transiting systems using the Rossiter - McLaughlin effect is one of the most important probes to better understanding of the origin of extrasolar planetary systems, especially the origin of their angular momentum.

Yasuhiro Ohta; Atsushi Taruya; Yasushi Suto

2004-10-21T23:59:59.000Z

109

Dynamic Phase Transitions In The Spin-2 Ising System Under An Oscillating Magnetic Field Within The Effective-Field Theory  

SciTech Connect

The dynamic phase transitions are studied in the spin-2 Ising model under a time-dependent oscillating magnetic field by using the effective-field theory with correlations. The effective-field dynamic equation is derived by employing the Glauber transition rates and the phases in the system are obtained by solving this dynamic equation. The nature (first- or second-order) of the dynamic phase transition is characterized by investigating the thermal behavior of the dynamic order parameter and the dynamic phase transition temperatures are obtained. The dynamic phase diagrams are presented in (T/zJ, h/zJ) plane.

Ertas, Mehmet; Keskin, Mustafa [Department of Physics, Erciyes University, 38039 Kayseri (Turkey); Deviren, Bayram [Department of Physics, Nevsehir University, 50300 Nevsehir (Turkey)

2010-12-23T23:59:59.000Z

110

The Spin-Orbit Alignment of the HD17156 Transiting Eccentric Planetary System  

E-Print Network (OSTI)

We present high precision radial velocity observations of HD17156 during a transit of its eccentric Jovian planet. In these data, we detect the Rossiter-McLaughlin effect, which is an apparent perturbation in the velocity of the star due to the progressive occultation of part of the rotating stellar photosphere by the transiting planet. This system had previously been reported by Narita et al. (2008) to exhibit a lambda = 62 +/- 25 degree misalignment of the projected planetary orbital axis and the stellar rotation axis. We model our data, along with the Narita et al. data, and obtain lambda = 9.4 +/- 9.3 degrees for the combined data set. We thus conclude that the planetary orbital axis is actually very well aligned with the stellar rotation axis.

William D. Cochran; Seth Redfield; Michael Endl; Anita L. Cochran

2008-06-25T23:59:59.000Z

111

Mesoscale to Submesoscale Transition in the California Current System. Part I: Flow Structure, Eddy Flux, and Observational Tests  

Science Conference Proceedings (OSTI)

In computational simulations of an idealized subtropical eastern boundary upwelling current system, similar to the California Current, a submesoscale transition occurs in the eddy variability as the horizontal grid scale is reduced to O(1) km. ...

X. Capet; J. C. McWilliams; M. J. Molemaker; A. F. Shchepetkin

2008-01-01T23:59:59.000Z

112

Technology transition in the national air transportation system : market failure and game theoretic analysis with application to ADS-B  

E-Print Network (OSTI)

This research analyzes the problem of technology transition in the national air transportation system, focusing on the implementation of Automatic Dependent Surveillance-Broadcast (ADS-B). ADS-B is a key technology in the ...

Hu, Xiaojie

2008-01-01T23:59:59.000Z

113

The planning and analysis implications of automated data collection systems : rail transit OD matrix inference and path choice modeling examples  

E-Print Network (OSTI)

(cont.) by presenting two case studies both in the context of the Chicago Transit Authority. One study proposes an enhanced method of inferring the rail trip OD matrix from an origin-only AFC system to replace the routine ...

Zhao, Jinhua, 1977-

2004-01-01T23:59:59.000Z

114

The Liquid-Gas Phase Transitions in a Multicomponent Nuclear System with Coulomb and Surface Effects  

E-Print Network (OSTI)

The liquid-gas phase transition is studied in a multi-component nuclear system using a local Skyrme interaction with Coulomb and surface effects. Some features are qualitatively the same as the results of Muller and Serot which uses relativistic mean field without Coulomb and surface effects. Surface tension brings the coexistance binodal surface to lower pressure. The Coulomb interaction makes the binodal surface smaller and cause another pair of binodal points at low pressure and large proton fraction with less protons in liquid phase and more protons in gas phase.

S. J. Lee; A. Z. Mekjian

2000-06-29T23:59:59.000Z

115

Liquid-gas phase transition and Coulomb instability of asymmetric nuclear systems  

E-Print Network (OSTI)

We use a chiral SU(3) quark mean field model to study the properties of nuclear systems at finite temperature. The liquid-gas phase transition of symmetric and asymmetric nuclear matter is discussed. For two formulations of the model the critical temperature, $T_c$, for symmetric nuclear matter is found to be 15.8 MeV and 17.9 MeV. These values are consistent with those derived from recent experiments. The limiting temperatures for finite nuclei are in good agreement with the experimental points.

P. Wang; D. B. Leinweber; A. W. Thomas; A. G. Williams

2004-07-20T23:59:59.000Z

116

Liquid-Gas Phase Transition and Instabilities in Asymmetric Two Component Systems  

E-Print Network (OSTI)

The liquid-gas phase transition and associated instability in two component systems are investigated using a mean field theory. The importance of the role of both the Coulomb force and symmetry energy terms are studied. The addition of the Coulomb terms bring asymmetry into a mean field and thus result in important differences with previous approaches which did not include such terms. The Coulomb effects modify the chemical instability and mechanical instability domains shifting many features away from proton fraction point y=1/2 to a value closer to the valley of \\beta stability. These features are discussed in detail.

S. J. Lee; A. Z. Mekjian

2002-10-12T23:59:59.000Z

117

Using System Dynamics to Model the Transition to Biofuels in the United States  

DOE Green Energy (OSTI)

Today, the U.S. consumes almost 21 million barrels of crude oil per day; approximately 60% of the U.S. demand is supplied by imports. The transportation sector alone accounts for two-thirds of U.S. petroleum use. Biofuels, liquid fuels produced from domestically-grown biomass, have the potential to displace about 30% of current U.S. gasoline consumption. Transitioning to a biofuels industry on this scale will require the creation of a robust biomass-to-biofuels system-of-systems that operates in concert with the existing agriculture, forestry, energy, and transportation markets. The U.S. Department of Energy is employing a system dynamics approach to investigate potential market penetration scenarios for cellulosic ethanol, and to aid decision makers in focusing government actions on the areas with greatest potential to accelerate the deployment of biofuels and ultimately reduce the nationpsilas dependence on imported oil.

Bush, B.; Duffy, M.; Sandor, D.; Peterson, S.

2008-01-01T23:59:59.000Z

118

Helium Recovery in the LHC Cryogenic System following Magnet Resistive Transitions  

E-Print Network (OSTI)

A resistive transition (quench) of the Large Hadron Collider magnets provokes the expulsion of helium from the magnet cryostats to the helium recovery system. A high-volume, vacuum-insulated recovery line connected to several uninsulated medium-pressure gas storage tanks, forms the main constituents of the system. Besides a dedicated hardware configuration, helium recovery also implies specific procedures that should follow a quench, in order to conserve the discharged helium and possibly make use of its refrigeration capability. The amount of energy transferred after a quench from the magnets to the helium leaving the cold mass has been estimated on the basis of experimental data. Based on these data, the helium thermodynamic state in the recovery system is calculated using a lumped parameter approach. The LHC magnet quenches are classified ina parametric way from their cryogenic consequences and procedures that should follow the quench are proposed.

Chorowski, M; Serio, L; Tavian, L; Wagner, U; Van Weelderen, R

1998-01-01T23:59:59.000Z

119

Transit Timing Observations from Kepler: II. Confirmation of Two Multiplanet Systems via a Non-parametric Correlation Analysis  

SciTech Connect

We present a new method for confirming transiting planets based on the combination of transit timing variations (TTVs) and dynamical stability. Correlated TTVs provide evidence that the pair of bodies are in the same physical system. Orbital stability provides upper limits for the masses of the transiting companions that are in the planetary regime. This paper describes a non-parametric technique for quantifying the statistical significance of TTVs based on the correlation of two TTV data sets. We apply this method to an analysis of the transit timing variations of two stars with multiple transiting planet candidates identified by Kepler. We confirm four transiting planets in two multiple planet systems based on their TTVs and the constraints imposed by dynamical stability. An additional three candidates in these same systems are not confirmed as planets, but are likely to be validated as real planets once further observations and analyses are possible. If all were confirmed, these systems would be near 4:6:9 and 2:4:6:9 period commensurabilities. Our results demonstrate that TTVs provide a powerful tool for confirming transiting planets, including low-mass planets and planets around faint stars for which Doppler follow-up is not practical with existing facilities. Continued Kepler observations will dramatically improve the constraints on the planet masses and orbits and provide sensitivity for detecting additional non-transiting planets. If Kepler observations were extended to eight years, then a similar analysis could likely confirm systems with multiple closely spaced, small transiting planets in or near the habitable zone of solar-type stars.

Ford, Eric B.; /Florida U.; Fabrycky, Daniel C.; /Lick Observ.; Steffen, Jason H.; /Fermilab; Carter, Joshua A.; /Harvard-Smithsonian Ctr. Astrophys.; Fressin, Francois; /Harvard-Smithsonian Ctr. Astrophys.; Holman, Matthew J.; /Harvard-Smithsonian Ctr. Astrophys.; Lissauer, Jack J.; /NASA, Ames; Moorhead, Althea V.; /Florida U.; Morehead, Robert C.; /Florida U.; Ragozzine, Darin; /Harvard-Smithsonian Ctr. Astrophys.; Rowe, Jason F.; /NASA, Ames /SETI Inst., Mtn. View /San Diego State U., Astron. Dept.

2012-01-01T23:59:59.000Z

120

A Rapidly Deployable Operational Mesoscale Modeling System for Emergency-Response Applications  

Science Conference Proceedings (OSTI)

An operational mesoscale model–based forecasting system has been developed for use by U.S. Army Test and Evaluation Command meteorologists in their support of test-range operations. This paper reports on the adaptation of this system to permit ...

Thomas T. Warner; James F. Bowers; Scott P. Swerdlin; Brian A. Beitler

2004-05-01T23:59:59.000Z

Note: This page contains sample records for the topic "rapid transit systems" 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

System transition : dynamics of change in the US air transportation system  

E-Print Network (OSTI)

The US Air Transportation System is currently facing a number of challenges including an increasing demand for travel and growing environmental requirements. In order to successfully meet future needs, the system will need ...

Mozdzanowska, Aleksandra L. (Aleksandra Ludmila), 1979-

2008-01-01T23:59:59.000Z

122

Measurement of the Rossiter--McLaughlin Effect in the Transiting Exoplanetary System TrES-1  

E-Print Network (OSTI)

We report a measurement of the Rossiter--McLaughlin effect in the transiting extrasolar planetary system TrES-1, via simultaneous spectroscopic and photometric observations with the Subaru and MAGNUM telescopes. By modeling the radial velocity anomaly that was observed during a transit, we determine the sky-projected angle between the stellar spin axis and the planetary orbital axis to be $\\lambda = 30 \\pm 21$ [deg]. This is the third case for which $\\lambda$ has been measured in a transiting exoplanetary system, and the first demonstration that such measurements are possible for relatively faint host stars ($V \\sim 12$, as compared to $V \\sim 8$ for the other systems). We also derive a time of mid-transit, constraints on the eccentricity of the TrES-1b orbit ($e = 0.048 \\pm 0.025$), and upper limits on the mass of the Trojan companions ($\\lesssim$14 $M_{\\oplus}$) at the 3$\\sigma$ level.

Norio Narita; Keigo Enya; Bun'ei Sato; Yasuhiro Ohta; Joshua N. Winn; Yasushi Suto; Atsushi Taruya; Edwin L. Turner; Wako Aoki; Motohide Tamura; Toru Yamada; Yuzuru Yoshii

2007-02-27T23:59:59.000Z

123

Structural Transitions, Melting, and Intermediate Phases for Stripe and Clump Forming Systems  

E-Print Network (OSTI)

We numerically examine the properties of a two-dimensional system of particles which have competing long range repulsive and short range attractive interactions as a function of density and temperature. For increasing density, there are well defined transitions between a low density clump phase, an intermediate stripe phase, an anticlump phase, and a high density uniform phase. To characterize the transitions between these phases we propose several measures which take into account the different length scales in the system. For increasing temperature, we find an intermediate phase that is liquid-like on the short length scale of interparticle spacing but solid-like on the larger length scale of the clump, stripe, or anticlump pattern. This intermediate phase persists over the widest temperature range in the stripe state when the local particle lattice within an individual stripe melts well below the temperature at which the entire stripe structure breaks down, and is characterized by intra-stripe diffusion of particles without inter-stripe diffusion. This is followed at higher temperatures by the onset of inter-stripe diffusion in an anisotropic diffusion phase, and then by breakup of the stripe structure. We identify the transitions between these regimes through diffusion, specific heat, and energy fluctuation measurements, and find that within the intra-stripe liquid regime, the excess entropy goes into disordering the particle arrangements within the stripe rather than affecting the stripe structure itself. The clump and anticlump phases also show multiple temperature-induced diffusive regimes which are not as pronounced as those of the stripe phase.

C. J. Olson Reichhardt; C. Reichhardt; A. R. Bishop

2010-05-05T23:59:59.000Z

124

Evaluating Rail Transit Criticism  

E-Print Network (OSTI)

This report evaluates criticism of rail transit systems. It examines claims that rail transit is ineffective at increasing public transit ridership and improving transportation system performance, that rail transit investments are not cost effective, and that transit is an outdated form of transportation. It finds that critics often misrepresent issues and use biased and inaccurate analysis. This is a companion to the report Rail Transit in

Todd Litman

2010-01-01T23:59:59.000Z

125

Bell-CHSH function approach to quantum phase transitions in matrix product systems  

E-Print Network (OSTI)

Recently, nonlocality and Bell inequalities have been used to investigate quantum phase transitions (QPTs) in low-dimensional quantum systems. Nonlocality can be detected by the Bell-CHSH function (BCF). In this work, we extend the study of BCF to the QPTs in matrix product systems (MPSs). In this kind of QPTs, the ground-state energy keeps analytical in the vicinity of the QPT points, and is usually called the MPS-QPTs. For several typical models, our results show that BCF can signal the MPS-QPTs very well. In addition, we find BCF can capture signal of QPTs in unentangled states and classical states, for which other measures of quantum correlation (quantum entanglement and quantum discord) fail. Furthermore, we find that in these MPSs, there exists some kind of quantum correlation which cannot be characterized by entanglement, or by nonlocality.

Zhao-Yu Sun; Hai-Lin Huang; Bo Wang

2013-04-13T23:59:59.000Z

126

Rapid load following of an SOFC power system via stable fuzzy predictive tracking controller  

Science Conference Proceedings (OSTI)

The solid oxide fuel cell (SOFC) is widely accepted for clean and distributed power generation use, but critical operation problems often occur when the stand-alone fuel cell is directly connected to the electricity grid or the dc electric user. In order ... Keywords: fuel cell, fuzzy systems, identification, input-tostate stability, load following, output tracking, predictive control

Tiejun Zhang; Gang Feng

2009-04-01T23:59:59.000Z

127

STRATEGIC PLAN FOR COORDINATING RURAL INTELLIGENT TRANSPORTATION SYSTEM (ITS) TRANSIT DEVELOPMENT IN THE GREAT SMOKY MOUNTAINS NATIONAL PARK  

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

256 256 STRATEGIC PLAN FOR COORDINATING RURAL INTELLIGENT TRANSPORTATION SYSTEM (ITS) TRANSIT DEVELOPMENT IN THE GREAT SMOKY MOUNTAINS NATIONAL PARK L. F. Truett (TRUETTLF@ORNL.GOV) S. M. Chin (CHINS@ORNL.GOV) E. C. P. Chang (ECC2005@ORNL.GOV) November 2002 Prepared for the FEDERAL TRANSIT ADMINISTRATION U.S. DEPARTMENT OF TRANSPORTATION Washington, D.C. 20590 Prepared by the Center for Transportation Analysis OAK RIDGE NATIONAL LABORATORY Oak Ridge, Tennessee 37831-6073 managed by UT-BATTELLE, LLC for the U.S. DEPARTMENT OF ENERGY under Contract No. DE-AC05-00OR22725 Coordination of Transit Concepts in GSMNP page iii, 11/12/02 STRATEGIC PLAN FOR COORDINATING RURAL INTELLIGENT TRANSPORTATION SYSTEM (ITS) TRANSIT DEVELOPMENT IN THE

128

Design of Optimal Coasting Speed for MRT Systems by Considering Social Cost.  

E-Print Network (OSTI)

??The Mass Rapid Transit (MRT) systems have been built in many metropolitans to solve the public transportation problem such as traffic congestion. With such high… (more)

Hsieh, Ching-Ho

2006-01-01T23:59:59.000Z

129

Optimizing the Power Delivery Network in Dynamically Voltage Scaled Systems with Uncertain Power Mode Transition Times  

E-Print Network (OSTI)

, where state transition rates are controlled by actions a A. We consider a cost function which assigns matrix G is defined as an nÃ?n matrix, where an entry s,s' in G is called the transition rate from state s to another state s'. The transition rates may be calculated as follows, , ' '( ) ( ', ) (1/ ( , ')),s

Pedram, Massoud

130

A PARALLAX DISTANCE AND MASS ESTIMATE FOR THE TRANSITIONAL MILLISECOND PULSAR SYSTEM J1023+0038  

Science Conference Proceedings (OSTI)

The recently discovered transitional millisecond pulsar system J1023+0038 exposes a crucial evolutionary phase of recycled neutron stars for multiwavelength study. The system, comprising the neutron star itself, its stellar companion, and the surrounding medium, is visible across the electromagnetic spectrum from the radio to X-ray/gamma-ray regimes and offers insight into the recycling phase of millisecond pulsar evolution. Here, we report on multiple-epoch astrometric observations with the Very Long Baseline Array (VLBA) which give a system parallax of 0.731 {+-} 0.022 milliarcseconds (mas) and a proper motion of 17.98 {+-} 0.05 mas yr{sup -1}. By combining our results with previous optical observations, we are able to use the parallax distance of 1368{sup +42}{sub -{sub 39}} pc to estimate the mass of the pulsar to be 1.71 {+-} 0.16 M{sub Sun }, and we are also able to measure the three-dimensional space velocity of the system to be 126 {+-} 5 km s{sup -1}. Despite the precise nature of the VLBA measurements, the remaining {approx}3% distance uncertainty dominates the 0.16 M{sub Sun} error on our mass estimate.

Deller, A. T. [Netherlands Institute for Radio Astronomy (ASTRON), 7990-AA Dwingeloo (Netherlands); Archibald, A. M.; Kaspi, V. M. [Department of Physics, McGill University, 3600 University Street, Montreal, QC H3A 2T8 (Canada); Brisken, W. F. [National Radio Astronomy Observatory, Socorro, NM 87801 (United States); Chatterjee, S. [Astronomy Department, Cornell University, Ithaca, NY 14853 (United States); Janssen, G. H.; Lyne, A. G.; Stappers, B. [Jodrell Bank Centre for Astrophysics, School of Physics and Astronomy, University of Manchester, Manchester M13 9PL (United Kingdom); Lorimer, D.; McLaughlin, M. A. [Department of Physics, West Virginia University, Morgantown, WV 26506 (United States); Ransom, S. [National Radio Astronomy Observatory, Charlottesville, VA 22903 (United States); Stairs, I. H. [Department of Physics and Astronomy, University of British Columbia, 6224 Agricultural Road, Vancouver, BC V6T 1Z1 (Canada)

2012-09-10T23:59:59.000Z

131

Free-energy functional for freezing transitions: Hard sphere systems freezing into crystalline and amorphous structures  

E-Print Network (OSTI)

A free-energy functional that contains both the symmetry conserved and symmetry broken parts of the direct pair correlation function has been used to investigate the freezing of a system of hard spheres into crystalline and amorphous structures. The freezing parameters for fluid-crystal transition have been found to be in very good agreement with the results found from simulations. We considered amorphous structures found from the molecular dynamics simulations at packing fractions $\\eta$ lower than the glass close packing fraction $\\eta_{J}$ and investigated their stability compared to that of a homogeneous fluid. The existence of free-energy minimum corresponding to a density distribution of overlapping Gaussians centered around an amorphous lattice depicts the deeply supercooled state with a heterogeneous density profile.

Swarn Lata Singh; Atul S. Bharadwaj; Yashwant Singh

2011-01-31T23:59:59.000Z

132

Direct probe of Mott-Hubbard to charge-transfer insulator transition and electronic structure evolution in transition-metal systems  

DOE Green Energy (OSTI)

We report the most direct experimental verification of Mott-Hubbard and charge-transfer insulators through x-ray emission spectroscopy in transition-metal (TM) fluorides. The p-d hybridization features in the spectra allow a straightforward energy alignment of the anion-2p and metal-3d valence states, which visually shows the difference between the two types of insulators. Furthermore, in parallel with the theoretical Zaanen-Sawatzky-Allen diagram, a complete experimental systematics of the 3d Coulomb interaction and the 2p-3d charge-transfer energy is reported and could serve as a universal experimental trend for other TM systems including oxides.

Olalde-Velasco, P; Jimenez-Mier, J; Denlinger, JD; Hussain, Z; Yang, WL

2011-07-11T23:59:59.000Z

133

Cooling system design tool for rapid development and analysis of chilled water systems aboard U.S. Navy surface ships  

E-Print Network (OSTI)

Over the last several decades, there has been a dramatic increase in the complexity and power requirements of radars and other combat systems equipment aboard naval combatants and this trend is expected to continue for the ...

Sanfiorenzo, Amiel B. (Amiel Benjamin)

2013-01-01T23:59:59.000Z

134

Transition to Turbulence and Effect of Initial Conditions on 3D Compressible Mixing in Planar Blast-wave-driven Systems  

Science Conference Proceedings (OSTI)

Perturbations on an interface driven by a strong blast wave grow in time due to a combination of Rayleigh-Taylor, Richtmyer-Meshkov, and decompression effects. In this paper, results from three-dimensional numerical simulations of such a system under drive conditions to be attainable on the National Ignition Facility [E. M. Campbell, Laser Part. Beams, 9(2), 209 (1991)] are presented. Using the multi-physics, adaptive mesh refinement, higher order Godunov Eulerian hydrocode, Raptor [L. H. Howell and J.A. Greenough, J. Comp. Phys. 184, 53 (2003)], the late nonlinear instability evolution, including transition to turbulence, is considered for various multimode perturbation spectra. The 3D post-transition state differs from the 2D result, but the process of transition proceeds similarly in both 2D and 3D. The turbulent mixing transition results in a reduction in the growth rate of the mixing layer relative to its pre-transition value and, in the case of the bubble front, relative to the 2D result. The post-transition spike front velocity is approximately the same in 2D and 3D. Implications for hydrodynamic mixing in core-collapse supernova are discussed.

Miles, A R; Edwards, M J; Greenough, J A

2004-11-08T23:59:59.000Z

135

Tradeoffs between Costs and Greenhouse Gas Emissions in the Design of Urban Transit Systems.  

E-Print Network (OSTI)

??Public transit is often touted as a "green" transportation option and a way for users to reduce their environmental footprint by avoiding automobile emissions. Many… (more)

Griswold, Julia Baird

2013-01-01T23:59:59.000Z

136

Work plan for transition of SY-101 hydrogen mitigation test project data acquisition and control system (DACS-1)  

DOE Green Energy (OSTI)

The purpose of this effort is to transfer operating and maintenance responsibility for the 241-SY-101 data acquisition and control system (DACS-1) from Los Alamos National Laboratory to Westinghouse Hanford Company. This work plan defines the tasks required for a successful turnover. It identifies DACS-1 transition, deliverables, responsible organizations and individuals, interfaces, cost, and schedule. The transition plan will discuss all required hardware, software, documentation, maintenance, operations, and training for use at Hanford Waste Tank 241-SY-101. The transfer of responsibilities for DACS-1 to WHC is contingent on final approval of applicable Acceptance for Beneficial Use documentation by Waste Tank Operations. The DACS-1 was designed to provide data monitoring, display, and storage for Tank 241-SY-101. The DACS-1 also provides alarm and control of all the hydrogen mitigation testing systems, as well as ancillary systems and equipment (HVAC, UPS, etc.) required to achieve safe and reliable operation of the testing systems in the tank.

McClees, J.; Truitt, R.W.

1994-10-12T23:59:59.000Z

137

Single Particle Jumps in a Binary Lennard-Jones System Below The Glass Transition  

E-Print Network (OSTI)

We study a binary Lennard-Jones system below the glass transition with molecular dynamics simulations. To investigate the dynamics we focus on events ("jumps") where a particle escapes the cage formed by its neighbors. Using single particle trajectories we define a jump by comparing for each particle its fluctuations with its changes in average position. We find two kinds of jumps: "reversible jumps," where a particle jumps back and forth between two or more average positions, and "irreversible jumps," where a particle does not return to any of its former average positions. For all investigated temperatures both kinds of particles jump and both irreversible and reversible jumps occur. With increasing temperature relaxation is enhanced by an increasing number of jumps, and growing jump lengths in position and potential energy. However, the waiting time between two successive jumps is independent of temperature. This temperature independence might be due to aging, which is present in our system. The ratio of irreversible to reversible jumps is also increasing with increasing temperature, which we interpret as a consequence of the increased likelihood of changes in the cages, i.e. a blocking of the "entrance" back into the previous cage. A comparison of the fluctuations of jumping particles and non-jumping particles indicates that jumping particles are more mobile even when not jumping. The jumps in energy normalized by their fluctuations are decreasing with increasing temperature, which is consistent with relaxation being increasingly driven by thermal fluctuations. In accordance with subdiffusive behavior are the distributions of waiting times and jump lengths in position.

K. Vollmayr-Lee

2003-08-28T23:59:59.000Z

138

Essays on transition challenges for alternative propulsion vehicles and transportation systems  

E-Print Network (OSTI)

Technology transitions require the formation of a self-sustaining market through alignment of consumers' interests, producers' capabilities, infrastructure development, and regulations. In this research I develop a broad ...

Struben, Jeroen J. R

2006-01-01T23:59:59.000Z

139

The relationship between rail transit ridership and built environment and transportation system  

E-Print Network (OSTI)

Public transportation is an effective tool to tackle many urban transportation problems. Due to its higher capacity and reliability, rail transit often serves as the main means to connect major trip origins and destinations ...

Chen, Szu-han

2013-01-01T23:59:59.000Z

140

Transitional failure of carbon nanotube systems under a combination of tension and torsion  

Science Conference Proceedings (OSTI)

Transitional failure envelopes of single- and double-walled carbon nanotubes under combined tension-torsion are predicted using classical molecular dynamics simulations. The observations reveal that while the tensile failure load decreases with combined ...

Byeong-Woo Jeong

2012-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "rapid transit systems" 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

Implementation of advanced transit traveler information systems in the United States and Canada : practice and prospects  

E-Print Network (OSTI)

Over the past few years, public transit agencies across the United States and Canada have increasingly implemented methods for passengers to access traveler information using new media and personal mobile communications ...

Rizos, Anthony Charles

2010-01-01T23:59:59.000Z

142

TRB-Transit Cooperative Research Program (TCRP): Case Studies...  

Open Energy Info (EERE)

Page Edit with form History Facebook icon Twitter icon TRB-Transit Cooperative Research Program (TCRP): Case Studies in Bus Rapid Transit Jump to: navigation, search Tool...

143

A design tool architecture for the rapid evaluation of product design tradeoffs in an Inernet-based system modeling environment  

E-Print Network (OSTI)

This thesis presents a computer-aided design tool for the rapid evaluation of design tradeoffs in an integrated product modeling environment. The goal of this work is to provide product development organizations with better ...

Wronski, Jacob (Jacob Andrzej)

2005-01-01T23:59:59.000Z

144

Variational description of Gibbs-non-Gibbs dynamical transitions for spin-flip systems with a Kac-type interaction  

E-Print Network (OSTI)

We continue our study of Gibbs-non-Gibbs dynamical transitions. In the present paper we consider a system of Ising spins on a large discrete torus with a Kac-type interaction subject to an independent spin-flip dynamics (infinite-temperature Glauber dynamics). We show that, in accordance with the program outlined in \\cite{vEFedHoRe10}, in the thermodynamic limit Gibbs-non-Gibbs dynamical transitions are \\emph{equivalent} to bifurcations in the set of global minima of the large-deviation rate function for the trajectories of the empirical density \\emph{conditional} on their endpoint. More precisely, the time-evolved measure is non-Gibbs if and only if this set is not a singleton for \\emph{some} value of the endpoint. A partial description of the possible scenarios of bifurcation is given, leading to a characterization of passages from Gibbs to non-Gibbs and vice versa, with sharp transition times. Our analysis provides a conceptual step-up from our earlier work on Gibbs-non-Gibbs dynamical transitions for the Curie-Weiss model, where the mean-field interaction allowed us to focus on trajectories of the empirical magnetization rather than the empirical density.

Roberto Fernández; Frank den Hollander; Julián Martínez

2013-09-14T23:59:59.000Z

145

KELT-2Ab: A HOT JUPITER TRANSITING THE BRIGHT (V = 8.77) PRIMARY STAR OF A BINARY SYSTEM  

Science Conference Proceedings (OSTI)

We report the discovery of KELT-2Ab, a hot Jupiter transiting the bright (V = 8.77) primary star of the HD 42176 binary system. The host is a slightly evolved late F-star likely in the very short-lived 'blue-hook' stage of evolution, with T{sub eff} = 6148 {+-} 48 K, log g = 4.030{sup +0.015}{sub -0.026} and [Fe/H] = 0.034 {+-} 0.78. The inferred stellar mass is M{sub *} = 1.314{sup +0.063}{sub -0.060} M{sub Sun} and the star has a relatively large radius of R{sub *} = 1.836{sup +0.066}{sub -0.046} R{sub Sun }. The planet is a typical hot Jupiter with period 4.1137913 {+-} 0.00001 days and a mass of M{sub P} = 1.524 {+-} 0.088 M{sub J} and radius of R{sub P} = 1.290{sup +0.064}{sub -0.050} R{sub J}. This is mildly inflated as compared to models of irradiated giant planets at the {approx}4 Gyr age of the system. KELT-2A is the third brightest star with a transiting planet identified by ground-based transit surveys, and the ninth brightest star overall with a transiting planet. KELT-2Ab's mass and radius are unique among the subset of planets with V McLaughlin measurements, which should have an amplitude of {approx}44 m s{sup -1}.

Beatty, Thomas G.; Gaudi, B. Scott; Gould, Andrew [Department of Astronomy, Ohio State University, 140 W. 18th Avenue, Columbus, OH 43210 (United States); Pepper, Joshua; Siverd, Robert J.; Stassun, Keivan G. [Department of Physics and Astronomy, Vanderbilt University, Nashville, TN 37235 (United States); Eastman, Jason D.; Fulton, Benjamin J. [Las Cumbres Observatory Global Telescope Network, 6740 Cortona Drive, Suite 102, Santa Barbara, CA 93117 (United States); Bieryla, Allyson; Latham, David W.; Berlind, Perry; Calkins, Michael L.; Esquerdo, Gilbert A.; Furesz, Gabor; Geary, John C. [Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138 (United States); Buchhave, Lars A. [Niels Bohr Institute, University of Copenhagen, Juliane Maries Vej 30, 21S00 Copenhagen (Denmark); Jensen, Eric L. N. [Department of Physics and Astronomy, Swarthmore College, Swarthmore, PA 19081 (United States); Manner, Mark [Spot Observatory, Nunnelly, TN 37137 (United States); Collins, Karen [Department of Physics and Astronomy, University of Louisville, Louisville, KY 40292 (United States); DePoy, Darren L. [Department of Physics and Astronomy, Texas A and M University, College Station, TX 77843 (United States); and others

2012-09-10T23:59:59.000Z

146

High-transition-temperature superconductors in the Nb-Al-Ge system  

DOE Patents (OSTI)

The patent describes superconducting materials of the nominal composition Nb(x)Al(y)Ge(l-y), where x is in the range of 1.9 to 2.8 and y is in the range of 0.5 to 0.9, having transition temperatures in the 19 -20K. range which are readily produced by annealing arc-melted compositions, or cold-pressed, heat-treated compositions at moderate temperatures for reasonably long times (about 50 hours).

Giorgi, A.L.; Szklarz, E.G.

1972-09-26T23:59:59.000Z

147

National Renewable Energy Laboratory's Hydrogen Technologies and Systems Center is Helping to Facilitate the Transition to a New Energy Future  

DOE Green Energy (OSTI)

The Hydrogen Technologies and Systems Center (HTSC) at the U.S. Department of Energy's (DOE) National Renewable Energy Laboratory (NREL) uses a systems engineering and integration approach to hydrogen research and development to help the United States make the transition to a new energy future - a future built on diverse and abundant domestic renewable resources and integrated hydrogen systems. Research focuses on renewable hydrogen production, delivery, and storage; fuel cells and fuel cell manufacturing; technology validation; safety, codes, and standards; analysis; education; and market transformation. Hydrogen can be used in fuel cells to power vehicles and to provide electricity and heat for homes and offices. This flexibility, combined with our increasing demand for energy, opens the door for hydrogen power systems. HTSC collaborates with DOE, other government agencies, industry, communities, universities, national laboratories, and other stakeholders to promote a clean and secure energy future.

Not Available

2011-01-01T23:59:59.000Z

148

Rapid Solar Mirror Characterization with Fringe Reflection ...  

Energy Analysis Rapid ... Technology Marketing Summary This technology is an automated system in which the ... Solar Energy; More Information Patent ...

149

Rapid automatic keyword extraction for information retrieval ...  

Methods and systems for rapid automatic keyword extraction for information retrieval and analysis. Embodiments can include parsing words in an ...

150

Experimental evidence for a liquid-gas phase transition in nuclear systems  

SciTech Connect

At certain combinations of temperature and density, nuclear matter may exist as a liquid-gas mixture exhibiting phase instabilities, a characteristic signature of which may be found in the emission of intermediate-mass fragments in nuclear collisions. The present analysis of fragment distributions from proton-- and heavy-ion--induced reactions, in the framework of a theory of condensation, is suggestive of the occurrence of such phase transitions with a critical exponent kapprox.1.7 and a critical temperature T/sub C/approx.12 MeV.

Panagiotou, A.D.; Curtin, M.W.; Toki, H.; Scott, D.K.; Siemens, P.J.

1984-02-13T23:59:59.000Z

151

Federal Transit Administration-National Transit Database (NTD) | Open  

Open Energy Info (EERE)

Federal Transit Administration-National Transit Database (NTD) Federal Transit Administration-National Transit Database (NTD) Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Federal Transit Administration-National Transit Database (NTD) Agency/Company /Organization: Federal Transit Administration Sector: Energy Focus Area: Transportation Resource Type: Dataset User Interface: Website Website: www.ntdprogram.gov/ntdprogram/ Cost: Free Language: English Federal Transit Administration-National Transit Database (NTD) Screenshot References: National Transit Database[1] "The NTD was established by Congress to be the Nation's primary source for information and statistics on the transit systems of the United States. Recipients or beneficiaries of grants from the Federal Transit Administration (FTA) under the Urbanized Area Formula Program (§5307) or

152

The Transition from the Present Radar Dissemination System to the NEXRAD Information Dissemination Service (NIDS)  

Science Conference Proceedings (OSTI)

The National Weather Service (NWS) will begin replacing its current system of weather radars with Next Generation Weather Radars (NEXRAD) in late 1990. Presented is an overview of previous and current systems, and the replacement NEXRAD ...

Vico E. Baer

1991-01-01T23:59:59.000Z

153

Transition Probabilities in {sup 134}Pr: A Test for Chirality in Nuclear Systems  

SciTech Connect

Exited states in {sup 134}Pr were populated in the fusion-evaporation reaction {sup 119}Sn({sup 19}F,4n){sup 134}Pr. Recoil distance Doppler-shift and Doppler-shift attenuation measurements using the Euroball spectrometer, in conjunction with the inner Bismuth Germanate ball and the Cologne plunger, were performed at beam energies of 87 MeV and 83 MeV, respectively. Reduced transition probabilities in {sup 134}Pr are compared to the predictions of the two quasiparticle+triaxial rotor and interacting boson fermion-fermion models. The experimental results do not support the presence of static chirality in {sup 134}Pr underlying the importance of shape fluctuations. Only within a dynamical context the presence of intrinsic chirality in {sup 134}Pr can be supported.

Tonev, D. [Laboratori Nazionali di Legnaro, INFN, I-35020 Legnaro (Italy); Institute for Nuclear Research and Nuclear Energy, BAS, 1784 Sofia (Bulgaria); De Angelis, G.; Gadea, A.; Marginean, N.; Napoli, D.R.; Prete, G. [Laboratori Nazionali di Legnaro, INFN, I-35020 Legnaro (Italy); Petkov, P. [Institute for Nuclear Research and Nuclear Energy, BAS, 1784 Sofia (Bulgaria); Dewald, A.; Pejovic, P.; Fitzler, A.; Moeller, O.; Zell, K.O. [Institut fuer Kernphysik der Universitaet zu Koeln, D-50937 Cologne (Germany); Brant, S. [Department of Physics, Faculty of Science, University of Zagreb, 10000 Zagreb (Croatia); Frauendorf, S. [Department of Physics, University of Notre Dame, Notre Dame, Indiana 46556 (United States); Balabanski, D.L. [Institute for Nuclear Research and Nuclear Energy, BAS, 1784 Sofia (Bulgaria); Dipartimento di Fisica, Universita di Camerino and INFN Perugia, I-62032 Camerino (Italy); Bazzacco, D.; Lenzi, S.; Lunardi, S. [Dipartimento di Fisica, Universita and INFN Sezione di Padova, I-35131 Padova (Italy); Bednarczyk, P.; Curien, D. [Institut de Recherches Subatomiques, Boite Postale 28 F-67037, Strasbourg (France)] (and others)

2006-02-10T23:59:59.000Z

154

PLANET-PLANET ECLIPSE AND THE ROSSITER-McLAUGHLIN EFFECT OF A MULTIPLE TRANSITING SYSTEM: JOINT ANALYSIS OF THE SUBARU SPECTROSCOPY AND THE KEPLER PHOTOMETRY  

Science Conference Proceedings (OSTI)

We report a joint analysis of the Rossiter-McLaughlin (RM) effect with Subaru and the Kepler photometry for the Kepler Object of Interest (KOI) 94 system. The system is comprised of four transiting planet candidates with orbital periods of 22.3 (KOI-94.01), 10.4 (KOI-94.02), 54.3 (KOI-94.03), and 3.7 (KOI-94.04) days from the Kepler photometry. We performed the radial velocity (RV) measurement of the system with the Subaru 8.2 m telescope on UT 2012 August 10, covering a complete transit of KOI-94.01 for {approx}6.7 hr. The resulting RV variation due to the RM effect spectroscopically confirms that KOI-94.01 is indeed the transiting planet and implies that its orbital axis is well aligned with the stellar spin axis; the projected spin-orbit angle {lambda} is estimated as -6{sup +13}{sub -11} deg. This is the first measurement of the RM effect for a multiple transiting system. Remarkably, the archived Kepler light curve around BJD = 2455211.5 (date in UT 2010 January 14/15) indicates a 'double-transit' event of KOI-94.01 and KOI-94.03, in which the two planets transit the stellar disk simultaneously. Moreover, the two planets partially overlap with each other, and exhibit a 'planet-planet eclipse' around the transit center. This provides a rare opportunity to put tight constraints on the configuration of the two transiting planets by joint analysis with our Subaru RM measurement. Indeed, we find that the projected mutual inclination of KOI-94.01 and KOI-94.03 is estimated to be {delta} = -1.{sup 0}15 {+-} 0.{sup 0}55. Implications for the migration model of multiple planet systems are also discussed.

Hirano, Teruyuki; Masuda, Kento; Suto, Yasushi [Department of Physics, University of Tokyo, Tokyo 113-0033 (Japan); Narita, Norio; Takahashi, Yasuhiro H.; Takeda, Yoichi; Aoki, Wako; Tamura, Motohide [National Astronomical Observatory of Japan, 2-21-1 Osawa, Mitaka, Tokyo 181-8588 (Japan); Sato, Bun'ei, E-mail: hirano@utap.phys.s.u-tokyo.ac.jp [Department of Earth and Planetary Sciences, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8551 (Japan)

2012-11-10T23:59:59.000Z

155

EVALUATION OF TRANSITIONS FOR TESTING AGRICULTURAL VENTILATION FANS WITH THE FAN ASSESSMENT NUMERATION SYSTEM (FANS).  

E-Print Network (OSTI)

??The Fan Assessment Numeration System (FANS) is an improved air velocity traverse method for measuring in situ fan performance. The FANS has been widely used,… (more)

Lopes, Igor Moreira

2012-01-01T23:59:59.000Z

156

First-principles transition-metal catalysis : efficient and accurate approaches for studying enzymatic systems  

E-Print Network (OSTI)

(cont.) We apply our approach to several paradigmatic systems: spin state splittings and structural properties of Fe2 and other small molecules as well as the addition-elimination reactions of hydrogen and methane on FeO+ ...

Kulik, Heather J

2009-01-01T23:59:59.000Z

157

Abstract --The transition from a vertically integrated industry to a horizontally integrated open market system changes  

E-Print Network (OSTI)

participants and the volatility of market prices. These additional factors are significant, especially system simulation. I. INTRODUCTION he economic benefits of improved efficiency and lower price also production activities includes public information about market-clearing electricity and fuel prices

Berleant, Daniel

158

Applied fractionalization : quantum phases and phase transitions of strongly interacting systems  

E-Print Network (OSTI)

Strongly correlated systems present interesting challenges in condensed matter physics. On the one hand, the theoretical work in the last two decades suggests that strong interactions may lead to new phases and phase ...

Grover, Tarun, Ph. D. Massachusetts Institute of Technology

2010-01-01T23:59:59.000Z

159

USE OF A DIESEL FUEL PROCESSOR FOR RAPID AND EFFICIENT REGENERATION OF SINGLE LEG NOX ADSORBER SYSTEMS  

DOE Green Energy (OSTI)

Lean NOx adsorber systems are one of the primary candidate technologies for the control of NOx from diesel engines to meet the 2007-2010 US emissions regulations, which require a 90% reduction of NOx from the 2004 regulations. Several of the technical challenges facing this technology are regeneration at low exhaust temperatures and the efficient use of diesel fuel to minimize fuel penalty. A diesel processor system has been developed and tested in a single leg NOx adsorber configuration on a diesel engine test stand. During NOx adsorber regeneration, this fuel processor system performs reduces the exhaust O2 level to zero and efficiently processes the diesel fuel to H2 and CO. Combined with a Nox adsorber catalyst, this system has demonstrated NOx reduction above 90%, regeneration of the NOx adsorber H2/CO pulses as short as 1 second and fuel penalties in the 3 to 4% range at 50% load. This fuel processor system can also be used to provide the desulfation cycle required with sulfur containing fuels as well as providing thermal management for PM filter regeneration.

Betta, R; Cizeron, J; Sheridan, D; Davis, T

2003-08-24T23:59:59.000Z

160

Automated-Manual Transitions: Human Capabilities and Adaptive Cruise Control  

E-Print Network (OSTI)

TRANSIT AND HIGHWAYS Automated-Manual Transitions: HumanOF CALIFORNIA, BERKELEY Automated-Manual Transitions: HumanSuch systems will supplant manual controls during certain

Barton, Joseph E.; Cohn, Theodore E.; Nguyen, Khoi M.; Nguyen, Tieuvi; Toyofuku, Natsuko

2004-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "rapid transit systems" 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

Negative heat capacities and first order phase transitions in nuclei and other mesoscopic systems  

E-Print Network (OSTI)

The origin of predicted and observed anomalies in caloric curves of nuclei and other mesoscopic systems is investigated. It is shown that a straightforward thermodynamical treatment of an evaporating liquid drop leads to a backbending in the caloric curve and to negative specific heats in the two phase coexistence region. The cause is found not in the generation of additional surface, but in the progressive reduction of the drop's radius, and surface, with evaporation.

L. G. Moretto; J. B. Elliott; L. Phair; G. J. Wozniak

2000-12-11T23:59:59.000Z

162

RapidProto  

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

Prototyping Manufacturing Technologies The Rapid Prototyping Laboratory (RPL) supports internal design, manufacturing, and process develop- ment with three rapid prototyping (RP)...

163

Revealing the rapid isothermal growth of graphene on catalytic...  

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

Materials Synthesis from Atoms to Systems Revealing the rapid isothermal growth of graphene on catalytic substrates July 01, 2013 Optical reflectivity tracks the rapid growth of...

164

Transition Metal Catalyzed Hydroarylation of Multiple Bonds: Exploration of Second Generation Ruthenium Catalysts and Extension to Copper Systems  

DOE Green Energy (OSTI)

Catalysts provide foundational technology for the development of new materials and can enhance the efficiency of routes to known materials. New catalyst technologies offer the possibility of reducing energy and raw material consumption as well as enabling chemical processes with a lower environmental impact. The rising demand and expense of fossil resources has strained national and global economies and has increased the importance of accessing more efficient catalytic processes for the conversion of hydrocarbons to useful products. The goals of the research are to develop and understand single-site homogeneous catalysts for the conversion of readily available hydrocarbons into useful materials. A detailed understanding of these catalytic reactions could lead to the development of catalysts with improved activity, longevity and selectivity. Such transformations could reduce the environmental impact of hydrocarbon functionalization, conserve energy and valuable fossil resources and provide new technologies for the production of liquid fuels. This project is a collaborative effort that incorporates both experimental and computational studies to understand the details of transition metal catalyzed C-H activation and C-C bond forming reactions with olefins. Accomplishments of the current funding period include: (1) We have completed and published studies of C-H activation and catalytic olefin hydroarylation by TpRu{l_brace}P(pyr){sub 3}{r_brace}(NCMe)R (pyr = N-pyrrolyl) complexes. While these systems efficiently initiate stoichiometric benzene C-H activation, catalytic olefin hydroarylation is hindered by inhibition of olefin coordination, which is a result of the steric bulk of the P(pyr){sub 3} ligand. (2) We have extended our studies of catalytic olefin hydroarylation by TpRu(L)(NCMe)Ph systems to L = P(OCH{sub 2}){sub 3}CEt. Thus, we have now completed detailed mechanistic studies of four systems with L = CO, PMe{sub 3}, P(pyr){sub 3} and P(OCH{sub 2}){sub 3}CEt, which has provided a comprehensive understanding of the impact of steric and electronic parameters of 'L' on the catalytic hydroarylation of olefins. (3) We have completed and published a detailed mechanistic study of stoichiometric aromatic C-H activation by TpRu(L)(NCMe)Ph (L = CO or PMe{sub 3}). These efforts have probed the impact of functionality para to the site of C-H activation for benzene substrates and have allowed us to develop a detailed model of the transition state for the C-H activation process. These results have led us to conclude that the C-H bond cleavage occurs by a {sigma}-bond metathesis process in which the C-H transfer is best viewed as an intramolecular proton transfer. (4) We have completed studies of Ru complexes possessing the N-heterocyclic carbene IMes (IMes = 1,3-bis-(2,4,6-trimethylphenyl)imidazol-2-ylidene). One of these systems is a unique four-coordinate Ru(II) complex that catalyzes the oxidative hydrophenylation of ethylene (in low yields) to produce styrene and ethane (utilizing ethylene as the hydrogen acceptor) as well as the hydrogenation of olefins, aldehydes and ketones. These results provide a map for the preparation of catalysts that are selective for oxidative olefin hydroarylation. (5) The ability of TpRu(PMe{sub 3})(NCMe)R systems to activate sp{sup 3} C-H bonds has been demonstrated including extension to subsequent C-C bond forming steps. These results open the door to the development of catalysts for the functionalization of more inert C-H bonds. (6) We have discovered that Pt(II) complexes supported by simple nitrogen-based ligands serve as catalysts for the hydroarylation of olefins. Given the extensive studies of Pt-based catalytic C-H activation, we believe these results will provide an entry point into an array of possible catalysts for hydrocarbon functionalization.

T. Brent Gunnoe

2011-02-17T23:59:59.000Z

165

Clean air program: Design guidelines for bus transit systems using liquefied petroleum gas (LPG) as an alternative fuel. Final report, July 1995-April 1996  

Science Conference Proceedings (OSTI)

The Federal Transit Administration (FTA) has initiated the development of `Design Guidelines for Bus Transit Systems Using Alternative Fuels.` This report provides design guidelines for the safe uses of Liquefied Petroleum Gas (LPG). It forms a part of the series of individual monographs being published by the FTA on (the guidelines for the safe use of) Compressed Natural Gas (CNG), Liquefied Natural Gas (LNG), Liquefied Petroleum Gas (LPG) and alcohol fuels (Methanol and Ethanol). Each report in this series describes for the subject fuel the important fuel properties, guidelines for the design and operation of bus fueling, storage and maintenance facilities, issues on personnel training and emergency preparedness.

Raj, P.K.; Hathaway, W.T.; Kangas, R.

1996-09-01T23:59:59.000Z

166

HST.921 / HST.923 Information Technology in the Health Care System of the Future, Spring 2003  

E-Print Network (OSTI)

The healthcare system in the US has been in the midst of a rapid transition in response to changing trends and patterns of care. The growing emphasis on evidence-based medical practice, continuous quality improvement, ...

Locke, Steven E. (Steven Elliot)

167

Transition to turbulence and effect of initial conditions on three-dimensional compressible mixing in planar blast-wave-driven systems  

Science Conference Proceedings (OSTI)

Perturbations on an interface driven by a strong blast wave grow in time due to a combination of Rayleigh-Taylor, Richtmyer-Meshkov, and decompression effects. In this paper, results from three-dimensional (3D) numerical simulations of such a system under drive conditions to be attainable on the National Ignition Facility [E. M. Campbell, Laser Part. Beams 9, 209 (1991)] are presented. Using the multiphysics, adaptive mesh refinement, higher order Godunov Eulerian hydrocode, Raptor [L. H. Howell and J. A. Greenough, J. Comput. Phys. 184, 53 (2003)], the late nonlinear instability evolution, including transition to turbulence, is considered for various multimode perturbation spectra. The 3D post-transition state differs from the 2D result, but the process of transition proceeds similarly in both 2D and 3D. The turbulent mixing transition results in a reduction in the growth rate of the mixing layer relative to its pretransition value and, in the case of the bubble front, relative to the 2D result. The post-transition spike front velocity is approximately the same in 2D and 3D. Implications for hydrodynamic mixing in core-collapse supernovae are discussed.

Miles, A.R.; Blue, B.; Edwards, M.J.; Greenough, J.A.; Hansen, J.F.; Robey, H.F.; Drake, R.P.; Kuranz, C.; Leibrandt, D.R. [Lawrence Livermore National Laboratory, L-021, 7000 East Avenue, P.O. Box 808, Livermore, California 94551 (United States); University of Michigan, 2455 Hayward Street, Ann Arbor, Michigan 48109 (United States)

2005-05-15T23:59:59.000Z

168

Advanced Vehicle Testing Activity: Transit Vehicle Testing Reports  

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

Transportation Planning and Transit Division: Advanced Technology Vehicles in Service: LNG Turbine Hybrid Electric Buses, February 2002 (PDF 446 KB PDF ) Dallas Area Rapid...

169

New York City Transit Hybrid and CNG Transit Buses: Interim Evaluation Results  

DOE Green Energy (OSTI)

This report focuses on the evaluation of compressed natural gas (CNG) and diesel hybrid electric bus propulsion systems in New York City Transit's transit buses.

Chandler, K.; Eberts, E.; Eudy, L.

2006-01-01T23:59:59.000Z

170

Rapid Multiplex PCR  

Science Conference Proceedings (OSTI)

Development of Rapid Multiplex PCR Techniques. Summary: Forensic DNA typing is currently conducted in approximately eight to ten hours. ...

2012-10-08T23:59:59.000Z

171

Alternative Fuels Data Center: Mass Transit  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Mass Transit to Mass Transit to someone by E-mail Share Alternative Fuels Data Center: Mass Transit on Facebook Tweet about Alternative Fuels Data Center: Mass Transit on Twitter Bookmark Alternative Fuels Data Center: Mass Transit on Google Bookmark Alternative Fuels Data Center: Mass Transit on Delicious Rank Alternative Fuels Data Center: Mass Transit on Digg Find More places to share Alternative Fuels Data Center: Mass Transit on AddThis.com... More in this section... Idle Reduction Parts & Equipment Maintenance Driving Behavior Fleet Rightsizing System Efficiency Ridesharing Mass Transit Active Transit Multi-Modal Transportation Telework Mass Transit Passenger-Miles per Gallon Passenger-miles per gallon (pmpg) is a metric for comparing mass transit and rideshare with typical passenger vehicle travel. Transportation system

172

How rapid is rapid prototyping? analysis of ESPADON programme results  

Science Conference Proceedings (OSTI)

New methodologies, engineering processes, and support environments are beginning to emerge for embedded signal processing systems. The main objectives are to enable defence industry to field state-of-the-art products in less time and with lower costs, ... Keywords: COTS, EDA tools, FPGA, beamformer, heterogeneous platform, model year, rapid prototyping

Bob K. Madahar; Ian D. Alston; Denis Aulagnier; Hans Schurer; Mark Thomas; Brigitte Saget

2003-01-01T23:59:59.000Z

173

Rapid radiosynthesis of [11C] and [14C]azelaic, suberic, and sebacic acids for in vivo mechanistic studies of systemic acquired resistance in plants  

Science Conference Proceedings (OSTI)

A recent report that the aliphatic dicarboxylic acid, azelaic acid (1,9-nonanedioic acid) but not related acids, suberic acid (1,8-octanedioic acid) or sebacic (1,10-decanedioic acid) acid induces systemic acquired resistance to invading pathogens in plants stimulated the development of a rapid method for labeling these dicarboxylic acids with {sup 11}C and {sup 14}C for in vivo mechanistic studies in whole plants. {sup 11}C-labeling was performed by reaction of ammonium [{sup 11}C]cyanide with the corresponding bromonitrile precursor followed by hydrolysis with aqueous sodium hydroxide solution. Total synthesis time was 60 min. Median decay-corrected radiochemical yield for [{sup 11}C]azelaic acid was 40% relative to trapped [{sup 11}C]cyanide, and specific activity was 15 GBq/{micro}mol. Yields for [{sup 11}C]suberic and sebacic acids were similar. The {sup 14}C-labeled version of azelaic acid was prepared from potassium [{sup 14}C]cyanide in 45% overall radiochemical yield. Radiolabeling procedures were verified using {sup 13}C-labeling coupled with {sup 13}C-NMR and liquid chromatography-mass spectrometry analysis. The {sup 11}C and {sup 14}C-labeled azelaic acid and related dicarboxylic acids are expected to be of value in understanding the mode-of-action, transport, and fate of this putative signaling molecule in plants.

Best M.; Fowler J.; Best, M.; Gifford, A.N.; Kim, S.W.; Babst, B.; Piel, M.; Roesch, F.; Fowler, J.S.

2011-11-25T23:59:59.000Z

174

Alternative Fuels Data Center: Active Transit  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Active Transit to Active Transit to someone by E-mail Share Alternative Fuels Data Center: Active Transit on Facebook Tweet about Alternative Fuels Data Center: Active Transit on Twitter Bookmark Alternative Fuels Data Center: Active Transit on Google Bookmark Alternative Fuels Data Center: Active Transit on Delicious Rank Alternative Fuels Data Center: Active Transit on Digg Find More places to share Alternative Fuels Data Center: Active Transit on AddThis.com... More in this section... Idle Reduction Parts & Equipment Maintenance Driving Behavior Fleet Rightsizing System Efficiency Ridesharing Mass Transit Active Transit Multi-Modal Transportation Telework Active Transit Photo of people riding bikes. Active transit is human-powered transportation such as biking and walking. Active transportation eliminates vehicle miles traveled altogether, so this

175

Maximizing the benefits of mass transit stations : amenities, services, and the improvement of urban space within spaces  

E-Print Network (OSTI)

Little attention has been paid to the quality of the spaces within rapid mass transit stations in the United States, and their importance as places in and of themselves. For many city dwellers who rely on rapid transit ...

Montañez, Carlos Javier, 1975-

2004-01-01T23:59:59.000Z

176

Modelling societal transitions with agent transformation  

Science Conference Proceedings (OSTI)

Transition models explain long-term and large-scale processes fundamentally changing the structure of a societal system. Our concern is that most transition models are too static. Although they capture a move of focus from static equilibria to transitions ... Keywords: Agent-based modelling, Integrated sustainability assessment, Societal transitions

Michel Schilperoord; Jan Rotmans; Noam Bergman

2008-12-01T23:59:59.000Z

177

Clean air program: Design guidelines for bus transit systems using hydrogen as an alternative fuel. Final report, September 1997--May 1998  

SciTech Connect

Alternative fuels such as Compressed Natural Gas (CNG), Liquefied Natural Gas (LNG), Liquified Petroleum Gas (LPG), and alcohol fuels (methanol and ethanol) are already being used in commercial vehicles and transit buses in revenue service. Hydrogen, which has better air quality characteristics as a vehicle fuel, is being used in research demonstration projects in fuel cell powered buses, as well as in internal combustion engines in automobiles and small trucks. At present, there are no facility guidelines to assist transit agencies (and others) contemplating the use of hydrogen as an alternative fuel. This document addresses the various issues involved. Hydrogen fuel properties, potential hazards, fuel requirements for specified levels of bus service, applicable codes and standards, ventilation, and electrical classification are indicated in this document. These guidelines also present various facility and bus design issues that need to be considered by a transit agency to ensure safe operations when using hydrogen as an alternative fuel. Fueling facility, garaging facility, maintenance facility requirements and safety practices are discussed. Critical fuel-related safety issues in the design of the related system on the bus are also identified. A system safety assessment and hazard resolution process is also presented. This approach may be used to select design strategies which are economical, yet ensure a specified level of safety.

Raj, P.K.; Hathaway, W.T.; Kangas, R.A.

1998-10-01T23:59:59.000Z

178

Alternative Fuels at AC Transit  

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

Alternative Fuels at AC Transit Alternative Fuels at AC Transit Speaker(s): Jaimie Levin Date: November 1, 2011 - 12:00pm Location: 90-3122 Seminar Host/Point of Contact: Eve Edelson Mr. Levin will discuss AC Transit's range of environmental technology initiatives, including: zero emission fuel cell transit buses; state-of-the-art, high-capacity, hydrogen fueling stations; solar energy systems; and stationary solid oxide fuel cell power generators. AC Transit has the largest fleet of fuel cell buses in the United States, featuring fuel cell systems with more than 10,000 hours of continuous operation without any failures or power degradation. Their fuel cell fleet has logged more than 400,000 miles of service and carried in excess of one million passengers. Come hear what AC Transit has learned, where they're headed,

179

Predictive Capability for Strongly Correlated Systems: Mott Transition in MnO, Multielectron Magnetic Moments, and Dynamics Effects in Correlated Materials  

SciTech Connect

There are classes of materials that are important to DOE and to the science and technology community, generically referred to as strongly correlated electron systems (SCES), which have proven very difficult to understand and to simulate in a material-specific manner. These range from actinides, which are central to the DOE mission, to transition metal oxides, which include the most promising components of new spin electronics applications as well as the high temperature superconductors, to intermetallic compounds whose heavy fermion characteristics and quantum critical behavior has given rise to some of the most active areas in condensed matter theory. The objective of the CMSN cooperative research team was to focus on the application of these new methodologies to the specific issue of Mott transitions, multi-electron magnetic moments, and dynamical properties correlated materials. Working towards this goal, the W&M team extended its first-principles phaseless auxiliary-field quantum Monte Carlo (AFQMC) method to accurately calculate structural phase transitions and excited states.

Krakauer, Henry; Zhang, Shiwei

2013-02-21T23:59:59.000Z

180

NIST X-Ray Transition Energies  

Science Conference Proceedings (OSTI)

... with the International System of measurement ... titled "X-ray transition energies: new approach ... and by NIST's Systems Integration for Manufacturing ...

2011-12-09T23:59:59.000Z

Note: This page contains sample records for the topic "rapid transit systems" 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

Framework for Bus Rapid Transit Development and Deployment Planning  

E-Print Network (OSTI)

ATSAC AVL BOCC BRT Caltrans CBD CNG DGPS EIS FTA GPS ITE ITScompressed natural gas (CNG) diesel-electric hybrids,compressed natural gas (CNG) buses. The buses have a special

Miller, Mark A.; Yin, Yafeng; Balvanyos, Tunde; Ceder, Avishai

2004-01-01T23:59:59.000Z

182

Framework for Bus Rapid Transit Development and Deployment Planning  

E-Print Network (OSTI)

Business District Compressed Natural Gas Differential Globalvehicles and compressed natural gas-fueled vehicles, dualvehicles and compressed natural gas- fueled vehicles, dual

Miller, Mark A.; Yin, Yafeng; Balvanyos, Tunde; Ceder, Avishai

2004-01-01T23:59:59.000Z

183

Framework for Bus Rapid Transit Development and Deployment Planning  

E-Print Network (OSTI)

4-21 Headway Distribution at Vermont (Westbound, Monday and4-22 Headway Distribution at Vermont (Eastbound, Monday and34 Dwell Time Distribution at Vermont (Westbound, Monday and

Miller, Mark A.; Yin, Yafeng; Balvanyos, Tunde; Ceder, Avishai

2004-01-01T23:59:59.000Z

184

Improving Robust Rolling Stock Circulation in Rapid Transit Networks  

E-Print Network (OSTI)

Aug 31, 2011 ... to undergo different types of maintenance checks and robustness ... of train services' RS assignment, empty trains, the optimal management of.

185

Duality, Magnetic space group and their applications to quantum phases and phase transitions on bipartite lattices in several experimental systems  

E-Print Network (OSTI)

By using a dual vortex method, we study phases such as superfluid, solids, supersolids and quantum phase transitions in a unified scheme in extended boson Hubbard models at and slightly away from half filling on bipartite optical lattices such as honeycomb and square lattice. We also map out its global phase diagram at $ T=0 $ of chemical potential versus the ratio of kinetic energy over the interaction. We stress the importance of the self-consistence condition on the saddle point structure of the dual gauge fields in the translational symmetry breaking insulating sides, especially in the charge density wave side. We find that in the translational symmetry breaking side, different kinds of supersolids are generic possible states slightly away from half filling. We propose a new kind of supersolid: valence bond supersolid (VB-SS). In this VB-SS, the density fluctuation at any site is very large indicating its superfluid nature, but the boson kinetic energies on bonds between two sites are given and break the lattice translational symmetries indicating its valence bound nature. Implications on possible future QMC simulations in both bipartite lattices are given. All these phases and phase transitions can be potentially realized in ultra-cold atoms loaded on optical bipartite lattices.

Jinwu Ye

2007-12-03T23:59:59.000Z

186

Network Observability Transitions  

E-Print Network (OSTI)

In the modeling, monitoring, and control of complex networks, a fundamental problem concerns the comprehensive determination of the state of the system from limited measurements. Using power grids as example networks, we show that this problem leads to a new type of percolation transition, here termed a {\\it network observability transition}, which we solve analytically for the configuration model. We also demonstrate a dual role of the network's community structure, which both facilitates optimal measurement placement and renders the networks substantially more sensitive to `observability attacks'. Aside from their immediate implications for the development of smart grids, these results provide insights into decentralized biological, social, and technological networks.

Yang, Yang; Motter, Adilson E; 10.1103/PhysRevLett.109.258701

2013-01-01T23:59:59.000Z

187

Transit administration and planning research  

SciTech Connect

The 10 papers in the report deal with the following areas: Evaluation of demand-management strategies for Toledo's year 2010 transportation plan; Accommodating deaf and hard-of-hearing persons on public transportation systems in Massachusetts; Quick approach to compare highway and bus transit alternatives using the arterial analysis package; Panel survey approach to measuring transit route service elasticity of demand; UMTA and major investments: evaluation process and results; Using early performance to project transit route ridership: comparison of methods; Institutional requirements for competition: labor issues; Updating ride checks with multiple point checks; Producing section 15 service-consumed data: challenge for large transit; Parkrose targeted marketing campaign pass-incentive program.

de Corla-Souza; Gupta.

1989-01-01T23:59:59.000Z

188

The Demographics of Public Transit Subsidies: A Case Study of Los Angeles  

E-Print Network (OSTI)

per-mile transit fare? Albany, NY: New York State Departmenttravel distance, for the Albany, New York transit system

Iseki, Hiroyuki; Taylor, Brian D.

2010-01-01T23:59:59.000Z

189

A Three-Dimensional Balance Theory for Rapidly Rotating Vortices  

Science Conference Proceedings (OSTI)

A three-dimensional balance formulation for rapidly rotating vortices, such as hurricanes, is presented. The asymmetric balance (AB) theory represents a new mathematical framework for studying the slow evolution of rapidly rotating fluid systems. ...

Lloyd J. Shapiro; Michael T. Montgomery

1993-10-01T23:59:59.000Z

190

A case study review of technical and technology issues for transition of a utility load management program to provide system reliability resources in restructured electricity markets  

SciTech Connect

Utility load management programs--including direct load control and interruptible load programs--were employed by utilities in the past as system reliability resources. With electricity industry restructuring, the context for these programs has changed; the market that was once controlled by vertically integrated utilities has become competitive, raising the question: can existing load management programs be modified so that they can effectively participate in competitive energy markets? In the short run, modified and/or improved operation of load management programs may be the most effective form of demand-side response available to the electricity system today. However, in light of recent technological advances in metering, communication, and load control, utility load management programs must be carefully reviewed in order to determine appropriate investments to support this transition. This report investigates the feasibility of and options for modifying an existing utility load management system so that it might provide reliability services (i.e. ancillary services) in the competitive markets that have resulted from electricity industry restructuring. The report is a case study of Southern California Edison's (SCE) load management programs. SCE was chosen because it operates one of the largest load management programs in the country and it operates them within a competitive wholesale electricity market. The report describes a wide range of existing and soon-to-be-available communication, control, and metering technologies that could be used to facilitate the evolution of SCE's load management programs and systems to provision of reliability services. The fundamental finding of this report is that, with modifications, SCE's load management infrastructure could be transitioned to provide critical ancillary services in competitive electricity markets, employing currently or soon-to-be available load control technologies.

Weller, G.H.

2001-07-15T23:59:59.000Z

191

Overview of Rapid DNA Testing  

Science Conference Proceedings (OSTI)

... Recent Work with Rapid PCR At NIST we are working on new PCR methods ... Applications for Rapid PCR • Integrated devices ('Lab on a Chip') ...

2009-10-02T23:59:59.000Z

192

A smooth transition from serial to parallel processing in the industrial petroleum system modeling package PetroMod  

Science Conference Proceedings (OSTI)

Petroleum system modeling is a crucial technology to numerically simulate the generation, migration, accumulation, and loss of oil and gas through geologic time. The OpenMP programming paradigm is used to achieve modest parallelism on a shared-memory ... Keywords: Monte Carlo, OpenMP, Parallel computing, Petroleum system modeling, Shared-memory parallelization

H. Martin Bücker; Armin I. Kauerauf; Arno Rasch

2008-11-01T23:59:59.000Z

193

Transition dynamics between the multiple steady states in natural ventilation systems : from theories to applications in optimal controls  

E-Print Network (OSTI)

In this study, we investigated the multiple steady state behavior, an important observation in numerical and experimental studies in natural ventilation systems. The-oretical models are developed and their applications in ...

Yuan, Jinchao

2007-01-01T23:59:59.000Z

194

Symmetry and singularities in a low-dimensional model of a complex system. A back door approach to the physics of LH transitions  

E-Print Network (OSTI)

and energy losses. A major area of plasma research ever since has been to understand why this transition

Dewar, Robert L.

195

Using land value capture to fund rail transit extensions in Mexico City and Santiago de Chile  

E-Print Network (OSTI)

The effects of rail rapid transit on land uses and land values are discussed. Rail transit can enhance accessibility, and can raise the demand for locating in areas around stations, increasing land value, and in some cases ...

Covarrubias, Alvaro, 1973-

2004-01-01T23:59:59.000Z

196

Applying the Inverse Average Magnitude Squared Coherence Index for Determining Order-Chaos Transition in a System Governed by Hénon Mapping Dynamics  

E-Print Network (OSTI)

The quantitative determination of the order-chaos transition in a nonlinear dynamical system described by Hénon mapping defined as x[n + 1] = 1.0 ? A ? x[n] 2 + B ? y[n],y[n + 1] = B ? x[n], where B = 0.3, and A is an adjustable control parameter, was made. This was achieved by applying the Inverse Average Magnitude-Squared Coherence Index (IAMSCI). This method is based on the Welch average periodogram technique and it has the advantage respect to nonlinear dynamical methods that it may be applied to any stationary signal by using discrete Fourier transform (DFT) representation which allows to operate on a short discrete-time series. Its effectiveness was demonstrated by comparing the results obtained by applying IAMSCI

Rubén Orozco Morales

2008-01-01T23:59:59.000Z

197

Rapid road repair vehicle  

DOE Patents (OSTI)

Disclosed is a rapid road repair vehicle capable of moving over a surface to be repaired at near normal posted traffic speeds to scan for and find at the high rate of speed, imperfections in the pavement surface, prepare the surface imperfection for repair by air pressure and vacuum cleaning, applying a correct amount of the correct patching material to effect the repair, smooth the resulting repaired surface, and catalog the location and quality of the repairs for maintenance records of the road surface. The rapid road repair vehicle can repair surface imperfections at lower cost, improved quality, at a higher rate of speed than was not heretofor possible, with significantly reduced exposure to safety and health hazards associated with this kind of road repair activities in the past. 2 figs.

Mara, L.M.

1998-05-05T23:59:59.000Z

198

Rapid increases in electricity demand challenge both generating ...  

U.S. Energy Information Administration (EIA)

Because supply and demand for electricity must balance in real-time, rapid changes in demand create operational challenges for the electric system and generating unit ...

199

FE Transition Deliverables  

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

Transition Deliverables Transition Deliverables To: Cynthia Quarterman From: Charles Roy, FE-3 Date: 12/04/08 Re: On 12/03/08 Cynthia Quarterman requested a list of major projects with quick starts and job creation from Vic Der. Attached is a hard copy of this document. An electronic version of this document will be submitted to Cynthia Quarterman through the Office of Management. If there are any questions, please contact Charles Roy at 202-586-8977. ,^ (^// Cc~y Major Projects with Quick Starts & Jobs Creation Office of Clean Coal Summary of Projects and Job Creation The following table outlines the near-term possibilities for projects that capture and sequester carbon from coal-based systems. The potential jobs associated with these activities are listed along with likely construction and operation dates. Since the funding

200

Performance evaluation of granular activated carbon system at Pantex: Rapid small-scale column tests to simulate removal of high explosives from contaminated groundwater  

Science Conference Proceedings (OSTI)

A granular activated carbon (GAC) system is now in operation at Pantex to treat groundwater from the perched aquifer that is contaminated with high explosives. The main chemicals of concern are RDX and HMX. The system consists of two GAC columns in series. Each column is charged with 10,000 pounds of Northwestern LB-830 GAC. At the design flow rate of 325 gpm, the hydraulic loading is 6.47 gpm/ft{sup 2}, and the empty bed contact time is 8.2 minutes per column. Currently, the system is operating at less than 10% of its design flow rate, although flow rate increases are expected in the relatively near future. This study had several objectives: Estimate the service life of the GAC now in use at Pantex; Screen several GACs to provide a recommendation on the best GAC for use at Pantex when the current GAC is exhausted and is replaced; Determine the extent to which natural organic matter in the Pantex groundwater fouls GAC adsorption sites, thereby decreasing the adsorption capacity for high explosives; and Determine if computer simulation models could match the experimental results, thereby providing another tool to follow system performance.

Henke, J.L.; Speitel, G.E. [Univ. of Texas, Austin, TX (United States). Dept. of Civil Engineering] [Univ. of Texas, Austin, TX (United States). Dept. of Civil Engineering

1998-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "rapid transit systems" 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

On the Stochastic Nature of the Rapid Climate Shifts during the Last Ice Age  

Science Conference Proceedings (OSTI)

The rapid climate shifts observed in the glacial climate are analyzed. The transitions into the warm interstadial states, the onsets, are easily identifiable in the record. The distribution of waiting times between consecutive onsets is well ...

Peter D. Ditlevsen; Ove D. Ditlevsen

2009-01-01T23:59:59.000Z

202

Nonisothermal Multifluid Transition to Equilibrium  

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

Nonisothermal Multifluid Transition to Equilibrium Nonisothermal Multifluid Transition to Equilibrium Processes of interest to the simulation of CH 4 production from gas hydrates in porous media include multifluid flow and heat transport along with complex phase transitions, including hydrate dissociation and formation. Before executing problems with the additional complexities involved with the gas hydrate phase, a base case problem has been designed to examine the numerical simulation of multifluid flow and heat transport processes with a single phase transition from aqueous saturated to unsaturated conditions for a water-CH 4 system outside the stability region for gas hydrate formation. The problem involves a horizontal one-dimensional closed domain (no flow boundary conditions), initialized with gradients in aqueous pressure, gas

203

Effect of Initial Conditions on 2D Rayleigh-Taylor Instability and Transition to Turbulence in Planar Blast-wave-driven Systems  

Science Conference Proceedings (OSTI)

Perturbations on an interface driven by a strong blast wave grow in time due to a combination of Rayleigh-Taylor, Richtmyer-Meshkov, and decompression effects. In this paper, we present the first results from a computational study of such a system under drive conditions to be attainable on the National Ignition Facility. Using the multiphysics, AMR, higher order Godunov Eulerian hydrocode, Raptor, we consider the late nonlinear instability evolution for multiple amplitude and phase realizations of a variety of multimode spectral types. We show that compressibility effects preclude the emergence of a regime of self-similar instability growth independent of the initial conditions by allowing for memory of the initial conditions to be retained in the mix width at all times. The loss of transverse spectral information is demonstrated, however, along with the existence of a quasi-self-similar regime over short time intervals. Certain aspects of the initial conditions, including the rms amplitude, are shown to have a strong effect on the time to transition to the quasi-self-similar regime.

Miles, A R; Edwards, M J; Greenough, J A

2004-03-26T23:59:59.000Z

204

White Paper for U.S. Army Rapid Equipping Force: Waste Heat Recovery with Thermoelectric and Lithium-Ion Hybrid Power System  

DOE Green Energy (OSTI)

By harvesting waste heat from engine exhaust and storing it in light-weight high-capacity modules, it is believed that the need for energy transport by convoys can be lowered significantly. By storing this power during operation, substantial electrical power can be provided during long periods of silent operation, while the engines are not operating. It is proposed to investigate the potential of installing efficient thermoelectric generators on the exhaust systems of trucks and other vehicles to generate electrical power from the waste heat contained in the exhaust and to store that power in advanced power packs comprised of polymer-gel lithium ion batteries. Efficient inexpensive methods for production of the thermoelectric generator are also proposed. The technology that exists at LLNL, as well as that which exists at industrial partners, all have high technology readiness level (TRL). Work is needed for integration and deployment.

Farmer, J C

2007-11-26T23:59:59.000Z

205

THE QUASIPERIODIC AUTOMATED TRANSIT SEARCH ALGORITHM  

Science Conference Proceedings (OSTI)

We present a new algorithm for detecting transiting extrasolar planets in time-series photometry. The Quasiperiodic Automated Transit Search (QATS) algorithm relaxes the usual assumption of strictly periodic transits by permitting a variable, but bounded, interval between successive transits. We show that this method is capable of detecting transiting planets with significant transit timing variations without any loss of significance-{sup s}mearing{sup -}as would be incurred with traditional algorithms; however, this is at the cost of a slightly increased stochastic background. The approximate times of transit are standard products of the QATS search. Despite the increased flexibility, we show that QATS has a run-time complexity that is comparable to traditional search codes and is comparably easy to implement. QATS is applicable to data having a nearly uninterrupted, uniform cadence and is therefore well suited to the modern class of space-based transit searches (e.g., Kepler, CoRoT). Applications of QATS include transiting planets in dynamically active multi-planet systems and transiting planets in stellar binary systems.

Carter, Joshua A. [Harvard-Smithsonian Center for Astrophysics, 60 Garden St., Cambridge, MA 02138 (United States); Agol, Eric [Department of Astronomy, Box 351580, University of Washington, Seattle, WA 98195 (United States)

2013-03-10T23:59:59.000Z

206

Realistic Financial Planning and Rapid  

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

Rapid Modification to Project Execution are Essential PMLL Identifier: PMLL-2010-LLNL-NIF-0001 (Source: User Submitted) Validator: Victoria Pratt Date: 4272010 Contact:...

207

Method and apparatus for rapid adjustment of process gas inventory in gaseous diffusion cascades  

DOE Patents (OSTI)

This invention relates to an improved method and system for making relatively large and rapid adjustments in the process gas

Dyer, Robert H. (Oak Ridge, TN); Fowler, Andrew H. (Oak Ridge, TN); Vanstrum, Paul R. (Oak Ridge, TN)

1977-01-01T23:59:59.000Z

208

Gas turbine combustor transition  

DOE Patents (OSTI)

A method is described for converting a steam cooled transition to an air cooled transition in a gas turbine having a compressor in fluid communication with a combustor, a turbine section in fluid communication with the combustor, the transition disposed in a combustor shell and having a cooling circuit connecting a steam outlet and a steam inlet and wherein hot gas flows from the combustor through the transition and to the turbine section, includes forming an air outlet in the transition in fluid communication with the cooling circuit and providing for an air inlet in the transition in fluid communication with the cooling circuit. 7 figs.

Coslow, B.J.; Whidden, G.L.

1999-05-25T23:59:59.000Z

209

Gas turbine combustor transition  

DOE Patents (OSTI)

A method of converting a steam cooled transition to an air cooled transition in a gas turbine having a compressor in fluid communication with a combustor, a turbine section in fluid communication with the combustor, the transition disposed in a combustor shell and having a cooling circuit connecting a steam outlet and a steam inlet and wherein hot gas flows from the combustor through the transition and to the turbine section, includes forming an air outlet in the transition in fluid communication with the cooling circuit and providing for an air inlet in the transition in fluid communication with the cooling circuit.

Coslow, Billy Joe (Winter Park, FL); Whidden, Graydon Lane (Great Blue, CT)

1999-01-01T23:59:59.000Z

210

Method and system rapid piece handling  

DOE Patents (OSTI)

The advent of high-speed fabric cutters has made necessary the development of automated techniques for the collection and sorting of garment pieces into collated piles of pieces ready for assembly. The present invention enables a new method for such handling and sorting of garment parts, and to apparatus capable of carrying out this new method. The common thread is the application of computer-controlled shuttling bins, capable of picking up a desired piece of fabric and dropping it in collated order for assembly. Such apparatus with appropriate computer control relieves the bottleneck now presented by the sorting and collation procedure, thus greatly increasing the overall rate at which garments can be assembled.

Spletzer, Barry L. (9504 Arvilla, NE, Albuquerque, NM 87111)

1996-01-01T23:59:59.000Z

211

Automated rapid thermal imaging systems technology  

E-Print Network (OSTI)

A major source of energy savings occurs on the thermal envelop of buildings, which amounts to approximately 10% of annual energy usage in the United States. To pursue these savings, energy auditors use closed loop energy ...

Phan, Long N., 1976-

2012-01-01T23:59:59.000Z

212

309 Building transition plan  

Science Conference Proceedings (OSTI)

The preparation for decontamination and decommissioning (transition) of the 309 Building is projected to be completed by the end of the fiscal year (FY) 1998. The major stabilization and decontamination efforts include the Plutonium Recycle Test Reactor (PRTR), fuel storage and transfer pits, Transfer Waste (TW) tanks and the Ion Exchange Vaults. In addition to stabilizing contaminated areas, equipment, components, records, waste products, etc., will be dispositioned. All nonessential systems, i.e., heating, ventilation, and air conditioning (HVAC), electrical, monitoring, fluids, etc., will be shut down and drained/de-energized. This will allow securing of the process, laboratory, and office areas of the facility. After that, the facility will be operated at a level commensurate with its surveillance needs while awaiting D&D. The implementation costs for FY 1995 through FY 1998 for the transition activities are estimated to be $1,070K, $2,115K, $2,939K, and $4,762K, respectively. Costs include an assumed company overhead of 20% and a 30% out year contingency.

Graves, C.E.

1994-08-31T23:59:59.000Z

213

Method for dry etching of transition metals  

DOE Patents (OSTI)

A method for dry etching of transition metals. The method for dry etching of a transition metal (or a transition metal alloy such as a silicide) on a substrate comprises providing at least one nitrogen- or phosphorous-containing .pi.-acceptor ligand in proximity to the transition metal, and etching the transition metal to form a volatile transition metal/.pi.-acceptor ligand complex. The dry etching may be performed in a plasma etching system such as a reactive ion etching (RIE) system, a downstream plasma etching system (i.e. a plasma afterglow), a chemically-assisted ion beam etching (CAIBE) system or the like. The dry etching may also be performed by generating the .pi.-acceptor ligands directly from a ligand source gas (e.g. nitrosyl ligands generated from nitric oxide), or from contact with energized particles such as photons, electrons, ions, atoms, or molecules. In some preferred embodiments of the present invention, an intermediary reactant species such as carbonyl or a halide ligand is used for an initial chemical reaction with the transition metal, with the intermediary reactant species being replaced at least in part by the .pi.-acceptor ligand for forming the volatile transition metal/.pi.-acceptor ligand complex.

Ashby, Carol I. H. (Edgewood, NM); Baca, Albert G. (Albuquerque, NM); Esherick, Peter (Albuquerque, NM); Parmeter, John E. (Albuquerque, NM); Rieger, Dennis J. (Tijeras, NM); Shul, Randy J. (Albuquerque, NM)

1998-01-01T23:59:59.000Z

214

Method for dry etching of transition metals  

DOE Patents (OSTI)

A method for dry etching of transition metals is disclosed. The method for dry etching of a transition metal (or a transition metal alloy such as a silicide) on a substrate comprises providing at least one nitrogen- or phosphorus-containing {pi}-acceptor ligand in proximity to the transition metal, and etching the transition metal to form a volatile transition metal/{pi}-acceptor ligand complex. The dry etching may be performed in a plasma etching system such as a reactive ion etching (RIE) system, a downstream plasma etching system (i.e. a plasma afterglow), a chemically-assisted ion beam etching (CAIBE) system or the like. The dry etching may also be performed by generating the {pi}-acceptor ligands directly from a ligand source gas (e.g. nitrosyl ligands generated from nitric oxide), or from contact with energized particles such as photons, electrons, ions, atoms, or molecules. In some preferred embodiments of the present invention, an intermediary reactant species such as carbonyl or a halide ligand is used for an initial chemical reaction with the transition metal, with the intermediary reactant species being replaced at least in part by the {pi}-acceptor ligand for forming the volatile transition metal/{pi}-acceptor ligand complex.

Ashby, C.I.H.; Baca, A.G.; Esherick, P.; Parmeter, J.E.; Rieger, D.J.; Shul, R.J.

1998-09-29T23:59:59.000Z

215

Vehicle Technologies Office: Fact #221: June 17, 2002 Transit...  

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

1: June 17, 2002 Transit Rail Energy Intensity Varies By System to someone by E-mail Share Vehicle Technologies Office: Fact 221: June 17, 2002 Transit Rail Energy Intensity...

216

Valuing Rail Transit: Comparing Capital and Operating Costs to Consumer Benefits  

E-Print Network (OSTI)

Estimating the effects of light rail transit on health caredesirability of urban rail transit systems. In Journal ofcapital costs : heavy rail and busway HOV lane. Federal

Guerra, Erick

2010-01-01T23:59:59.000Z

217

Baldrige Program Transition  

Science Conference Proceedings (OSTI)

The Baldrige Performance Excellence Program is transitioning to a Sustainable, Enterprise Model. ... A Vision to Be Among the Best. ...

2013-08-06T23:59:59.000Z

218

Management Transition Guidance  

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

Records and Information Records and Information Management Transition Guidance November 2013 Records and Information Management Transition Guidance i Records and Information Management Transition Guidance Table of Contents Executive Summary ........................................................................................................................ 1 1.0 Introduction and Purpose ..................................................................................................... 1 LM Records Functions ................................................................................................................ 1 2.0 The Records Life Cycle ....................................................................................................... 2 3.0 Organizational Responsibilities ........................................................................................... 2

219

Transition to smart card technology : how transit operators can encourage the take-up of smart card technology  

E-Print Network (OSTI)

This thesis explores and evaluates the essential strategies needed for transit agencies to switch from traditional fare collection systems to smart cards. More transit agencies today are investing in smart card technology ...

Hong, Yi, S.M. Massachusetts Institute of Technology

2006-01-01T23:59:59.000Z

220

Rapid Scan AERI Observations: Benefits and Analysis  

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

Rapid Scan AERI Observations: Benefits and Analysis Rapid Scan AERI Observations: Benefits and Analysis W. F. Feltz, D. D. Turner, R. O. Knuteson, and R. G. Dedecker Space Science and Engineering Center Cooperative Institute of Mesoscale Meteorological Studies University of Wisconsin-Madison Madison, Wisconsin D. D. Turner Pacific Northwest National Laboratory Richland, Washington Introduction The U.S. Department of Energy's (DOE's) Atmospheric Radiation Measurement (ARM) Program has funded the development of the atmospheric emitted radiance interferometer (AERI). This has led to a hardened, autonomous system that measures downwelling infrared (IR) radiance at high-spectral resolution. Seven AERI systems have been deployed around the world as part of the ARM Program. The initial goal of these instruments was to characterize the clear-sky IR emission from the atmosphere,

Note: This page contains sample records for the topic "rapid transit systems" 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

Transits and Occultations  

E-Print Network (OSTI)

When we are fortunate enough to view an exoplanetary system nearly edge-on, the star and planet periodically eclipse each other. Observations of eclipses (transits and occultations) provide a bonanza of information that cannot be obtained from radial-velocity data alone, such as the relative dimensions of the planet and its host star, as well as the orientation of the planet's orbit relative to the sky plane and relative to the stellar rotation axis. The wavelength-dependence of the eclipse signal gives clues about the the temperature and composition of the planetary atmosphere. Anomalies in the timing or other properties of the eclipses may betray the presence of additional planets or moons. Searching for eclipses is also a productive means of discovering new planets. This chapter reviews the basic geometry and physics of eclipses, and summarizes the knowledge that has been gained through eclipse observations, as well as the information that might be gained in the future.

Winn, Joshua N

2010-01-01T23:59:59.000Z

222

Comprehensive Evaluation of Rail Transit Benefits  

E-Print Network (OSTI)

This report evaluates rail transit benefits based on a comprehensive analysis of urban transportation system performance in major U.S. cities. It discusses best practices for evaluating transit benefits. It finds that cities with larger, well-established rail systems have significantly higher per capita transit ridership, lower average per capita vehicle ownership and mileage, less traffic congestion, lower traffic death rates and lower consumer transportation expenditures than otherwise comparable cities. This indicates that rail transit systems can provide a variety of economic, social and environmental benefits, and benefits tend to increase as a system expands and matures. This analysis indicates that rail investments can be a cost effective way to improve urban transport. Parking, vehicle and congestion cost savings from rail transit are estimated to exceed total U.S. public transit subsidies. It critiques Great Rail Disasters (O’Toole, 2004), a report which argued that rail transit systems fail to achieve their objectives and are not cost effective. It finds that many claims in Great Rail Disasters are inaccurate, based on

Todd Litman; Todd Alexander Litman

2004-01-01T23:59:59.000Z

223

Transit Users Group Supports Transit Agencies with Natural Gas Buses  

Science Conference Proceedings (OSTI)

Fact sheet describes the benefits of the Transit Users Group, which supports transit groups with compressed natural gas (CNG) buses.

Not Available

2002-04-01T23:59:59.000Z

224

Realistic Financial Planning and Rapid  

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

Realistic Financial Planning and Rapid Realistic Financial Planning and Rapid Modification to Project Execution are Essential PMLL Identifier: PMLL-2010-LLNL-NIF-0001 (Source: User Submitted) Validator: Victoria Pratt Date: 4/27/2010 Contact: 202-586-7358 Statement: Schedule and cost impacts can be reduced by accounting for potential annual funding delays as well as by adjusting project execution rapidly Discussion: The NIF Project was funding constrained, and planned (per Acquisition Executive direction) with the assumption that the full annual funding in the budget profile would be available early in October. Any delays or changes in the annual funding availability required extraordinary measures both for obtaining the funding required to avoid significant project impacts in a timely manner, and in rapidly adjusting project execution.

225

Rapid prototyping of green composites  

E-Print Network (OSTI)

Rapid prototyping employs digital fabrication techniques to quickly manufacture parts. However, the available materials are not yet suitable for making strong, large or durable objects. Composites are materials which are ...

Peek, Nadya (Nadya Meile)

2010-01-01T23:59:59.000Z

226

The Treatment of Livestock Wastewater by Three Step Series Constructed Rapid Infiltration  

Science Conference Proceedings (OSTI)

Constructed Rapid Infiltration system (CRI) is anew type of wastewater land disposal technique based on the traditional wastewater Rapid Infiltration. This paper was study on three step series CRI for removal of pollutants by using preparation of the ... Keywords: constructed rapid infiltration system, three step series, piggery wastewater, oxygen recovery

Kang Ai-bin; Chen Hong-han

2011-02-01T23:59:59.000Z

227

Biology and Phase Transition - CECM  

E-Print Network (OSTI)

Dec 24, 2003 ... next · up · previous. Next: Kaufman and percolation Up: Phase Transition Models in Previous: Phase Transition Models in ...

228

Environmental Factors in the Upscale Growth and Longevity of MCSs Derived from Rapid Update Cycle Analyses  

Science Conference Proceedings (OSTI)

Composite environments of mesoscale convective systems (MCSs) are produced from Rapid Update Cycle (RUC) analyses to explore the differences between rapidly and slowly developing MCSs as well as the differences ahead of long- and short-lived ...

Michael C. Coniglio; Jason Y. Hwang; David J. Stensrud

2010-09-01T23:59:59.000Z

229

Rapid extraction of dissolved inorganic carbon from seawater and groundwater samples for radiocarbon dating  

E-Print Network (OSTI)

The focus of this thesis is the design and development of a system for rapid extraction of dissolved inorganic carbon from seawater and groundwater samples for radiocarbon dating. The Rapid Extraction of Dissolved Inorganic ...

Gospodinova, Kalina Doneva

2012-01-01T23:59:59.000Z

230

Site Transition Guidance  

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

Site Transition Guidance March 2010 Office of Environmental Management U.S. Department of Energy Washington D. C. 20585 Standard Review Plan (SRP) Technical Framework for EM...

231

Hydrogen Transition Infrastructure Analysis  

DOE Green Energy (OSTI)

Presentation for the 2005 U.S. Department of Energy Hydrogen Program review analyzes the hydrogen infrastructure needed to accommodate a transitional hydrogen fuel cell vehicle demand.

Melendez, M.; Milbrandt, A.

2005-05-01T23:59:59.000Z

232

The Transition to Hydrogen  

E-Print Network (OSTI)

Prospects for Building a Hydrogen Energy Infrastructure,”and James S. Cannon. The Hydrogen Energy Transition: Movingof Energy, National Hydrogen Energy Roadmap, November 2002.

Ogden, Joan

2005-01-01T23:59:59.000Z

233

Rapid Risk Assessment: FY05 Annual Summary Report  

Science Conference Proceedings (OSTI)

The Pacific Northwest National Laboratory (PNNL) is developing decision support tools that will assist in the transition of incident information into Protective Action Recommendations (PARs) that are understandable and can be executed in a real-world, operational environment. During emergencies, responders must rapidly assess risks and decide on the best course of action—all within minutes to hours. PNNL is blending existing modeling and decision support technology to develop new methods for transitioning science-based threat assessment to PARs. The rapid risk assessment tool will be both understandable and applicable to the emergency management community and would be a valuable tool during any water security-related incident. In 2005, PNNL demonstrated the integration of the multi-thematic modeling with emergency management decision support tools to create a Rapid Risk Assessment (RRA) tool that will transition risk to PARs that assist in responding to or mitigating the direct and indirect impacts of the incident(s). The RRA tool does this by aligning multi-thematic modeling capabilities with real-world response zones established by emergency and site operations managers. The RRA tool uses the risk assessment tool to drive prognostic models that use the type of incident, time of impact, severity of impact, and duration of impact to select the most appropriate PAR. Because PARs (and the thresholds by which they are selected) are jointly established by the technologists and the emergency management and operations decision makers, the science-based risk assessment can transition into a recommendation that can be understood and executed by people in the field.

Whelan, Gene; Millard, W. David; Gelston, Gariann M.; Pelton, Mitch A.; Yang, Zhaoqing; Strenge, Dennis L.; Lee, Cheegwan; Sivaraman, Chitra; Simpson, Mary J.; Young, Joan K.; Khangaonkar, Tarang P.; Downing, Timothy R.; Hoopes, Bonnie L.; Hachmeister, Lon E.

2006-03-06T23:59:59.000Z

234

Forecast and Analysis of the Effectiveness of Changsha Rail Transit Based on CA/GIS  

Science Conference Proceedings (OSTI)

The rail transit as a modern, fast, mass transit system plays an important role in the evolution of transportation system and urban spatial structure. Therefore, the quantitative study of the effectiveness of urban rail transit has an important significance. ... Keywords: cellular automata, GIS, effectiveness of rail transit, predict, Changsha city

Pei-juan Zhu; Huai-yu Tian; Hong Xiao; Huan-kai Yu

2010-06-01T23:59:59.000Z

235

Rapid DNA Testing Approaches for Reference Samples  

Science Conference Proceedings (OSTI)

... Page 12. Rapid PCR Protocols Rapid PCR with alternate polymerases ... 28 cycles = 19 min Rapid PCR Protocols: Thermal Cyclers 95oC 1 min 95oC ...

2012-07-13T23:59:59.000Z

236

Biomass Rapid Analysis Network (BRAN)  

DOE Green Energy (OSTI)

Helping the emerging biotechnology industry develop new tools and methods for real-time analysis of biomass feedstocks, process intermediates and The Biomass Rapid Analysis Network is designed to fast track the development of modern tools and methods for biomass analysis to accelerate the development of the emerging industry. The network will be led by industry and organized and coordinated through the National Renewable Energy Lab. The network will provide training and other activities of interest to BRAN members. BRAN members will share the cost and work of rapid analysis method development, validate the new methods, and work together to develop the training for the future biomass conversion workforce.

Not Available

2003-10-01T23:59:59.000Z

237

Analytical investigations of transitional operating modes of the second circuit of units at NPP with water-moderated reactors with consideration of control systems  

Science Conference Proceedings (OSTI)

A mathematical model for analysis of process parameters of equipment in the second circuit of nuclear power plants is presented, and the structure of the program and principles used for analysis of the equipment are described. A mathematical model for analysis of the deaerator and steam generator is described in detail. A computational analysis of several transitional modes, which is made possible on the basis of the mathematical model in question, is also presented in this paper, and a comparison is made with test data.

Pikin, M. A.; Nesterov, Yu. V. [JSC 'Vserossiiskii Teplotekhnicheskii Institut' (VTI) (Russian Federation)

2007-05-15T23:59:59.000Z

238

Event:The Second LCEDN International Workshop: Transitions to...  

Open Energy Info (EERE)

search Calendar.png The Second LCEDN International Workshop: Transitions to low carbon energy systems: on 20120910 The second LCEDN workshop is intended to identify and...

239

Lessons Learned from Alternative Transportation Fuels: Modeling Transition Dynamics  

DOE Green Energy (OSTI)

Report focuses on understanding how analytical system modeling and data from AFV experiences could improve our understanding of the dynamic forces governing the transition to a hydrogen future.

Welch, C.

2006-02-01T23:59:59.000Z

240

DOE Grids Service Transition  

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

DOE Grids Service Transition DOE Grids Service Transition Services Overview ECS Audio/Video Conferencing Fasterdata IPv6 Network Network Performance Tools (perfSONAR) ESnet OID Registry PGP Key Service Virtual Circuits (OSCARS) DOE Grids Service Transition Contact Us Technical Assistance: 1 800-33-ESnet (Inside the US) 1 800-333-7638 (Inside the US) 1 510-486-7600 (Globally) 1 510-486-7607 (Globally) Report Network Problems: trouble@es.net Provide Web Site Feedback: info@es.net DOE Grids Service Transition Background ESnet has decided to transition support and management for the certificate services provided by the DOE Grids public key infrastructure (PKI) to the Open Sciences Grid (OSG). OSG and ESnet provide service to many of the same user communities, and have long been collaborators in the areas of identity

Note: This page contains sample records for the topic "rapid transit systems" 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

A Transition Mechanism for the Spontaneous Axisymmetric Intensification of Tropical Cyclones  

Science Conference Proceedings (OSTI)

A mechanism for the transition of tropical cyclones (TCs) to the spontaneous rapid intensification (RI) phase is proposed based on numerical results of a three-dimensional full-physics model. The intensification phase of the simulated TC is ...

Yoshiaki Miyamoto; Tetsuya Takemi

2013-01-01T23:59:59.000Z

242

Rapidly Rotating Suns and Active Nests of Convection  

E-Print Network (OSTI)

In the solar convection zone, rotation couples with intensely turbulent convection to drive a strong differential rotation and achieve complex magnetic dynamo action. Our sun must have rotated more rapidly in its past, as is suggested by observations of many rapidly rotating young solar-type stars. Here we explore the effects of more rapid rotation on the global-scale patterns of convection in such stars and the flows of differential rotation and meridional circulation which are self-consistently established. The convection in these systems is richly time dependent and in our most rapidly rotating suns a striking pattern of localized convection emerges. Convection near the equator in these systems is dominated by one or two nests in longitude of locally enhanced convection, with quiescent streaming flow in between at the highest rotation rates. These active nests of convection maintain a strong differential rotation despite their small size. The structure of differential rotation is similar in all of our more rapidly rotating suns, with fast equators and slower poles. We find that the total shear in differential rotation Delta Omega grows with more rapid rotation while the relative shear Delta Omega/Omega_0 decreases. In contrast, at more rapid rotation the meridional circulations decrease in energy and peak velocities and break into multiple cells of circulation in both radius and latitude.

Benjamin P. Brown; Matthew K. Browning; Allan Sacha Brun; Mark S. Miesch; Juri Toomre

2008-08-12T23:59:59.000Z

243

Rapid River Hatchery - Spring Chinook, Final Report  

SciTech Connect

This report presents the findings of the independent audit of the Rapid River Hatchery (Spring Chinook). The hatchery is located in the lower Snake River basin near Riggins Idaho. The hatchery is used for adult collection, egg incubation, and rearing of spring chinook. The audit was conducted in April 1996 as part of a two-year effort that will include 67 hatcheries and satellite facilities located on the Columbia and Snake River system in Idaho, Oregon, and Washington. The hatchery operating agencies include the US Fish and Wildlife Service, Idaho Department of Fish and Game, Oregon Department of Fish and Wildlife, and Washington Department of Fish and Wildlife.

Watson, M.

1996-05-01T23:59:59.000Z

244

Paying for transit operations : challenges and solutions for the Chicago Transit Authority  

E-Print Network (OSTI)

This research identifies the challenges Chicagoland must confront to maintain a quality transit system. It analyzes the organizational and funding structure of the Regional Transportation Authority and its three service ...

Kirschbaum, Julie B

2004-01-01T23:59:59.000Z

245

Mitigation of light rail transit construction on jurisdictional areas in the White Rock Creek floodplain, Dallas, Texas  

E-Print Network (OSTI)

MITIGATION OF LIGHT RAIL TRANSIT CONSTRUCTION ONmile extension of its light rail transit (LRT) system fromadequately protect the new rail bed from flooding, it needed

Schieffer, Emily; Smiley, Jerry

2001-01-01T23:59:59.000Z

246

Transition-Metal Hydrides  

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

Transition-Metal Hydride Electrochromics Transition-Metal Hydride Electrochromics A new type of electrochromic hydride material has interesting and unusual properties. Thin Ni-Mg films, for example, are mirror-like in appearance and have very low visible transmittance. On exposure to hydrogen gas or on reduction in alkaline electrolyte, the films become transparent. The transition is believed to result from formation of nickel magnesium hydride, Mg2NiH4. Switchable mirrors based on rare earth hydrides were discovered in 1996 at Vrije University in the Netherlands, Rare earth-magnesium alloy films were subsequently found to be superior to the pure lanthanides in maximum transparency and mirror-state reflectivity by Philips Laboratories. The newer transition-metal types which use less expensive and less reactive materials were discovered at LBNL. This has now become a very active area of study with a network of researchers.

247

Alternative fuel transit buses  

DOE Green Energy (OSTI)

The National Renewable Energy Laboratory (NREL) is a U.S. Department of Energy (DOE) national laboratory; this project was funded by DOE. One of NREL`s missions is to objectively evaluate the performance, emissions, and operating costs of alternative fuel vehicles so fleet managers can make informed decisions when purchasing them. Alternative fuels have made greater inroads into the transit bus market than into any other. Each year, the American Public Transit Association (APTA) surveys its members on their inventory and buying plans. The latest APTA data show that about 4% of the 50,000 transit buses in its survey run on an alternative fuel. Furthermore, 1 in 5 of the new transit buses that members have on order are alternative fuel buses. This program was designed to comprehensively and objectively evaluate the alternative fuels in use in the industry.

Motta, R.; Norton, P.; Kelly, K. [and others

1996-10-01T23:59:59.000Z

248

Information and Records Management Transition Guidance | Department...  

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

Information and Records Management Transition Guidance Information and Records Management Transition Guidance Information and Records Management Transition Guidance (March 2004)...

249

Knowledge mapping for rapidly evolving domains: A design science approach  

Science Conference Proceedings (OSTI)

Knowledge mapping can provide comprehensive depictions of rapidly evolving scientific domains. Taking the design science approach, we developed a Web-based knowledge mapping system (i.e., Nano Mapper) that provides interactive search and analysis on ... Keywords: Design science, Information systems, Knowledge mapping

Yan Dang; Yulei Zhang; Paul Jen-Hwa Hu; Susan A. Brown; Hsinchun Chen

2011-01-01T23:59:59.000Z

250

Control Strategies For Transit Priority  

E-Print Network (OSTI)

Light Rail Transit," Transportation Research Record, No.Rail Signal Control Strategies by Combining Transit and Traffic Simulation Models," Transportation Research

Skabardonis, Alexander

1998-01-01T23:59:59.000Z

251

Site Transition Process Upon Cleanup Completion | Department...  

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

Site Transition Process Upon Cleanup Completion Site Transition Process Upon Cleanup Completion Site Transition Process Upon Cleanup Completion Site Transition Process Upon Cleanup...

252

Process planning for rapid manufacturing of plastic injection mold for short run production.  

E-Print Network (OSTI)

??This thesis presents a process planning methodology for a rapid injection mold tool manufacturing system that involves additive and subtractive techniques, whereby slabs are sequentially… (more)

Karthikeyan, Rajesh Kumar

2010-01-01T23:59:59.000Z

253

Monsoons as eddy-mediated regime transitions of the tropical overturning circulation  

E-Print Network (OSTI)

Monsoons as eddy-mediated regime transitions of the tropical overturning circulation Simona Bordoni National Center for Atmospheric Research, Boulder, Colorado, USA Monsoons are generally viewed as planetary with the seasons, the onset of monsoon precipitation is rapid and accompanied by rapid circulation changes

Heaton, Thomas H.

254

Rapid thermal processing by stamping  

DOE Patents (OSTI)

A rapid thermal processing device and methods are provided for thermal processing of samples such as semiconductor wafers. The device has components including a stamp (35) having a stamping surface and a heater or cooler (40) to bring it to a selected processing temperature, a sample holder (20) for holding a sample (10) in position for intimate contact with the stamping surface; and positioning components (25) for moving the stamping surface and the stamp (35) in and away from intimate, substantially non-pressured contact. Methods for using and making such devices are also provided. These devices and methods allow inexpensive, efficient, easily controllable thermal processing.

Stradins, Pauls; Wang, Qi

2013-03-05T23:59:59.000Z

255

A case study review of technical and technology issues for transition of a utility load management program to provide system reliability resources in restructured electricity markets  

E-Print Network (OSTI)

metering and communication gateway technology enables utilities and service companies to use residential and commercial customer data to enhance servicedata communications, master computer, and metering systems for each ancillary service

Weller, G.H.

2001-01-01T23:59:59.000Z

256

Examining hydrogen transitions.  

DOE Green Energy (OSTI)

This report describes the results of an effort to identify key analytic issues associated with modeling a transition to hydrogen as a fuel for light duty vehicles, and using insights gained from this effort to suggest ways to improve ongoing modeling efforts. The study reported on here examined multiple hydrogen scenarios reported in the literature, identified modeling issues associated with those scenario analyses, and examined three DOE-sponsored hydrogen transition models in the context of those modeling issues. The three hydrogen transition models are HyTrans (contractor: Oak Ridge National Laboratory), MARKAL/DOE* (Brookhaven National Laboratory), and NEMS-H2 (OnLocation, Inc). The goals of these models are (1) to help DOE improve its R&D effort by identifying key technology and other roadblocks to a transition and testing its technical program goals to determine whether they are likely to lead to the market success of hydrogen technologies, (2) to evaluate alternative policies to promote a transition, and (3) to estimate the costs and benefits of alternative pathways to hydrogen development.

Plotkin, S. E.; Energy Systems

2007-03-01T23:59:59.000Z

257

Phase transition in the Jarzynski estimator of free energy differences  

E-Print Network (OSTI)

The transition between a regime in which thermodynamic relations apply only to ensembles of small systems coupled to a large environment and a regime in which they can be used to characterize individual macroscopic systems ...

Suarez Gonzalez, Alberto

258

APDS: Autonomous Pathogen Detection System  

SciTech Connect

An early warning system to counter bioterrorism, the Autonomous Pathogen Detection System (APDS) continuously monitors the environment for the presence of biological pathogens (e.g., anthrax) and once detected, it sounds an alarm much like a smoke detector warns of a fire. Long before September 11, 2001, this system was being developed to protect domestic venues and events including performing arts centers, mass transit systems, major sporting and entertainment events, and other high profile situations in which the public is at risk of becoming a target of bioterrorist attacks. Customizing off-the-shelf components and developing new components, a multidisciplinary team developed APDS, a stand-alone system for rapid, continuous monitoring of multiple airborne biological threat agents in the environment. The completely automated APDS samples the air, prepares fluid samples in-line, and performs two orthogonal tests: immunoassay and nucleic acid detection. When compared to competing technologies, APDS is unprecedented in terms of flexibility and system performance.

Langlois, R G; Brown, S; Burris, L; Colston, B; Jones, L; Makarewicz, T; Mariella, R; Masquelier, D; McBride, M; Milanovich, F; Masarabadi, S; Venkateswaran, K; Marshall, G; Olson, D; Wolcott, D

2002-02-14T23:59:59.000Z

259

site_transition.cdr  

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

Legacy Legacy Management U.S. DEPARTMENT OF This fact sheet explains the process for transferring a site to the U.S. Department of Energy Office of Legacy Management. Site Transition Process Upon Cleanup Completion Introduction Transition Process After environmental remediation is completed at a site and there is no continuing mission, responsibility for the site and the associated records are transferred to the U.S. Department of Energy (DOE) Office of Legacy Management for post-closure management. Where residual hazards (e.g., disposal cells, ground water contamination) remain, active long-term surveillance and maintenance will be required to ensure protection of human health and the environment. The DOE Office of Legacy Management (LM) established transition guidance for remediated sites that will transfer to LM for long-term surveillance and maintenance. The

260

Rapid 500-mb Cyclogenesis and Anticyclogenesis  

Science Conference Proceedings (OSTI)

Rapid intensification of cyclones and anticyclones in National Meteorological Center 500-mb height analyses is investigated during the 1983–84 through 1986–87 cool seasons (September through May). Rapid intensification is defined by analyzed ...

Timothy L. Alberta; Stephen J. Colucci; J. Clay Davenport

1991-05-01T23:59:59.000Z

Note: This page contains sample records for the topic "rapid transit systems" 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

Functionalized Gold Nanoparticles for Rapid, Ultra- sensitive ...  

A rapid, highly sensitive, inexpensive method to detect and identify specific hazardous environmental pollutants has been invented by ORNL ...

262

Efficient Bayesian estimation of Markov model transition matrices with given stationary distribution  

E-Print Network (OSTI)

Direct simulation of biomolecular dynamics in thermal equilibrium is challenging due to the metastable nature of conformation dynamics and the computational cost of molecular dynamics. Biased or enhanced sampling methods may improve the convergence of expectation values of equilibrium probabilities and expectation values of stationary quantities significantly. Unfortunately the convergence of dynamic observables such as correlation functions or timescales of conformational transitions relies on direct equilibrium simulations. Markov state models are well suited to describe both, stationary properties and properties of slow dynamical processes of a molecular system, in terms of a transition matrix for a jump process on a suitable discretiza- tion of continuous conformation space. Here, we introduce statistical estimation methods that allow a priori knowledge of equilibrium probabilities to be incorporated into the estimation of dynamical observables. Both, maximum likelihood methods and an improved Monte Carlo sampling method for reversible transition ma- trices with fixed stationary distribution are given. The sampling approach is applied to a toy example as well as to simulations of the MR121-GSGS-W peptide, and is demonstrated to converge much more rapidly than a previous approach in [F. Noe, J. Chem. Phys. 128, 244103 (2008)

Benjamin Trendelkamp-Schroer; Frank Noe

2013-01-10T23:59:59.000Z

263

Rapid Oscillations in Cataclysmic Variables  

E-Print Network (OSTI)

I give an overview of the rich phenomenology of dwarf nova oscillations (DNOs) and Quasi-periodic Oscillations (QPOs) observed in cataclysmic variable stars (CVs). The favoured interpretation of these rapid brightness modulations (3 - >1000 s time scales) is that they are magnetic in nature - magnetically channelled accretion from the inner accretion disc for DNOs and possible magnetically excited travelling waves in the disc for QPOs. There is increasing evidence for the magnetic aspects, which extend to lower field the well known properties of strong field (polars) and intermediate strength field (intermediate polars) CVs. The result is that almost all CVs show the presence of magnetic fields on their white dwarf primaries - though for many the intrinsic field may be locally enhanced by the accretion process itself. There are many parallel behaviours with the QPOs seen in X-Ray binaries, with high and low frequency X-Ray QPOs resembling respectively the DNOs and QPOs in CVs.

Brian Warner

2003-12-06T23:59:59.000Z

264

Heat capacity at the glass transition  

E-Print Network (OSTI)

A fundamental problem of glass transition is to explain the jump of heat capacity at the glass transition temperature $T_g$ without asserting the existence of a distinct solid glass phase. This problem is also common to other disordered systems, including spin glasses. We propose that if $T_g$ is defined as the temperature at which the liquid stops relaxing at the experimental time scale, the jump of heat capacity at $T_g$ follows as a necessary consequence due to the change of system's elastic, vibrational and thermal properties. In this picture, we discuss time-dependent effects of glass transition, and identify three distinct regimes of relaxation. Our approach explains widely observed logarithmic increase of $T_g$ with the quench rate and the correlation of heat capacity jump with liquid fragility.

Kostya Trachenko; Vadim Brazhkin

2010-02-10T23:59:59.000Z

265

Rapid-Scan Super-Resolution Observations of a Cyclic Supercell with a Dual-Polarization WSR-88D  

Science Conference Proceedings (OSTI)

In recent years, there has been widespread interest in collecting and analyzing rapid updates of radar data in severe convective storms. To this end, conventional single-polarization rapid-scan radars and phased array radar systems have been ...

Matthew R. Kumjian; Alexander V. Ryzhkov; Valery M. Melnikov; Terry J. Schuur

2010-10-01T23:59:59.000Z

266

Magnetic and electric field testing of the Amtrak Northeast Corridor and New Jersey transit/North Jersey coast line rail systems. Volume 2. Appendices. Final report, May 1993-March 1993  

Science Conference Proceedings (OSTI)

The safety of magnetically levitated (maglev) and high speed rail (HSR) trains proposed for application in the United States is the responsibility of the Federal Railroad Administration (FRA). The characterization of electric and magnetic fields (EMF) produced by both steady (dc) and alternating currents (ac) at power frequency (50 Hz in Europe and 60 Hz in the U.S.) and above, in the Extreme Low Frequency (ELF) range (3-3000 Hz), is of interest with respect to any potential health effects these fields may have on the public and on transportation workers. An EMF survey of National Rail Passengers Corporation trains operating on the Northeast Corridor (NEC) was performed, as part of a comprehensive comparative safety assessment of the German Transrapid (TR-07) maglev system and of existing (NEC and transit trains) and advanced rail systems (the French TGV). The report is Volume 2 of two volumes. A portable magnetic field monitoring system (augmented to include an electric fields probe) was used to sample, record and store three-axis static and ac magnetic fields waveforms simultaneously, at multiple locations. A real time Digital Audio Tape (DAT) recorder able to capture EMF transients, and two personal power-frequency magnetic field monitors were used to collect complementary data.

Dietrich, F.M.; Robertson, D.C.; Steiner, G.A.

1993-04-01T23:59:59.000Z

267

Magnetic and electric field testing of the Amtrak Northeast Corridor and New Jersey Transit/North Jersey coast line rail systems. Volume 1. Analysis. Final report, May 1992-March 1992  

Science Conference Proceedings (OSTI)

The safety of magnetically levitated (maglev) and high speed rail (HSR) trains proposed for application in the United States is the responsibility of the Federal Railroad Administration (FRA). The characterization of electric and magnetic fields (EMF) produced by both steady (dc) and alternating currents (ac) at power frequency (50 Hz in Europe and 60 Hz in the U.S.) and above, in the Extreme Low Frequency (ELF) range (3-3000 Hz), is of interest with respect to any potential health effects these fields may have on the public and on transportation workers. An EMF survey of National Rail Passengers Corporation trains operating on the Northeast Corridor (NEC) was performed, as part of a comprehensive comparative safety assessment of the German Transrapid (TR-07) maglev system, and of existing (NEC and transit trains) and advanced rail systems (the French TGV). The report is Volume 1 of two volumes. A portable magnetic field monitoring system (augmented to include an electric fields probe) was used to sample, record and store three-axis static and ac magnetic fields waveforms simultaneously, at multiple locations. A real time Digital Audio Tape (DAT) recorder able to capture EMF transients, and two personal power-frequency magnetic field monitors were used to collect complementary data.

Dietrich, F.M.; Feero, W.E.; Papas, P.N.; Steiner, G.A.

1993-04-01T23:59:59.000Z

268

Prospect of Rapidity Asymmetry and Nuclear Modifications  

E-Print Network (OSTI)

In asymmetric heavy ion collisions like dA or pA, particle production yields are different in the forward (d- or p-side) and backward (A-side) rapidity directions. The rapidity distribution reflects the geometry and phase-space distribution of nuclear matter. These properties may depend on the time evolution of the collision. Due to the smallness of the backward-forward differences, the rapidity asymmetry factor can be useful to quantify nuclear modification effects, like e.g. shadowing and the EMC effect. Our work is a survey of the nuclear modification factor and the rapidity asymmetries at RHIC energies. We analyze the rapidity dependence and the strength of the nuclear effects. We focus on the high transverse momentum region, and make predictions for the role of nuclear modifications and rapidity asymmetries for future experimental measurements at increasing absolute values of rapidity.

G. G. Barnaföldi; A. Adeluyi; G. Fai; P. Lévai; G. Papp

2008-07-22T23:59:59.000Z

269

RAPID toolkit/FAQ | Open Energy Information  

Open Energy Info (EERE)

source source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Page Edit History Facebook icon Twitter icon » RAPID toolkit/FAQ Jump to: navigation, search Rapid selected.png RAPIDtoolkit About FAQ Contact Us Presentations Outreach Get Involved Tools Frequently Asked Questions What does RAPID offer? The RAPID web site provides tools to aid in the permitting of renewable energy and bulk transmission projects. RAPID covers federal and state regulations for selected states. Additional states and technologies are continuously being added, so check back for new information. Does RAPID address bills that have not been enacted or regulations that have not been fully approved? No. How is RAPID maintained?

270

Towards Integrated Verification of Timed Transition Models  

Science Conference Proceedings (OSTI)

This paper describes an attempt to combine theorem proving and model-checking to formally verify real-time systems in a discrete time setting. The Timed Automata Modeling Environment (TAME) has been modified to provide a formal model for Time Transition ... Keywords: PVS, Real-time, SAL, equivalence verification, model reduction, model-checking, theorem proving

Mark Lawford; Vera Pantelic; Hong Zhang

2006-04-01T23:59:59.000Z

271

RapidRadio: Signal Classification and Radio Deployment Framework  

Science Conference Proceedings (OSTI)

In this article, the RapidRadio framework for signal classification and receiver deployment is discussed. The framework is a productivity-enhancing tool that reduces the required knowledge base for implementing a receiver on an FPGA-based SDR platform. ... Keywords: FPGA, signal classification, system synthesis

Jorge A. Surís; Adolfo Recio; Peter Athanas

2012-08-01T23:59:59.000Z

272

Transitions for the People: Theory and Practice of `Transition' and  

E-Print Network (OSTI)

respond to the challenges, and opportunities, of Peak Oil and Climate Change?" [Transition Network 2008 change and peak-oil. There is much of interest here, for academics of sustainability transitions

Watson, Andrew

273

Alternative fuel transit buses: The Pierce Transit Success Story  

DOE Green Energy (OSTI)

The Pierce transit program for operating mass transit buses on compressed natural gas (CNG) is described. Cost, reliability, fuel efficiency, emission of combustion products, and future trends are discussed.

NONE

1996-10-01T23:59:59.000Z

274

Alternative Fuel Transit Buses  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

35th St. Craig Ave. Alt Blvd. Colucci Pkwy. Final Results from the National Renewable Energy Laboratory Vehicle Evaluation Program Final Results from the National Renewable Energy Laboratory Vehicle Evaluation Program N T Y A U E O F E N E R G D E P A R T M E N I T E D S T A T S O F A E R I C M Produced for the U.S. Department of Energy (DOE) by the National Renewable Energy Laboratory (NREL), a U.S. DOE national laboratory Transit Buses Alternative Fuel Alternative Fuel Final Results from the National Renewable Energy Laboratory (NREL) Vehicle Evaluation Program by Robert Motta, Paul Norton, and Kenneth Kelly, NREL Kevin Chandler, Battelle Leon Schumacher, University of Missouri Nigel Clark,West Virginia University October 1996 The authors wish to thank all the transit agencies that participated in this program.

275

APOSTLE: 11 TRANSIT OBSERVATIONS OF TrES-3b  

SciTech Connect

The Apache Point Survey of Transit Lightcurves of Exoplanets (APOSTLE) observed 11 transits of TrES-3b over two years in order to constrain system parameters and look for transit timing and depth variations. We describe an updated analysis protocol for APOSTLE data, including the reduction pipeline, transit model, and Markov Chain Monte Carlo analyzer. Our estimates of the system parameters for TrES-3b are consistent with previous estimates to within the 2{sigma} confidence level. We improved the errors (by 10%-30%) on system parameters such as the orbital inclination (i {sub orb}), impact parameter (b), and stellar density ({rho}{sub *}) compared to previous measurements. The near-grazing nature of the system, and incomplete sampling of some transits, limited our ability to place reliable uncertainties on individual transit depths and hence we do not report strong evidence for variability. Our analysis of the transit timing data shows no evidence for transit timing variations and our timing measurements are able to rule out super-Earth and gas giant companions in low-order mean motion resonance with TrES-3b.

Kundurthy, P.; Becker, A. C.; Agol, E.; Barnes, R.; Williams, B. [Astronomy Department, University of Washington, Seattle, WA 98195 (United States)] [Astronomy Department, University of Washington, Seattle, WA 98195 (United States)

2013-02-10T23:59:59.000Z

276

The Rossiter-McLaughlin Effect of the Transiting Exoplanet XO-4b  

E-Print Network (OSTI)

We report photometric and radial velocity observations of the XO-4 transiting planetary system, conducted with the FLWO 1.2 m telescope and the 8.2 m Subaru Telescope. Based on the new light curves, the refined transit ...

Narita, Norio

277

Concerted Allosteric Transition Highlight  

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

combined use of x-ray crystallography and solution small angle x-ray scattering has enabled a research collaboration involving scientists from Boston College and SSRL to provide structural evidence supporting a 30-year old model accounting for the cooperative binding of ligands to allosteric proteins and enzymes - a function central to physiology and cellular processes. combined use of x-ray crystallography and solution small angle x-ray scattering has enabled a research collaboration involving scientists from Boston College and SSRL to provide structural evidence supporting a 30-year old model accounting for the cooperative binding of ligands to allosteric proteins and enzymes - a function central to physiology and cellular processes. Over 30 years ago, two major models were developed to account for the cooperativity observed in oligomeric allosteric proteins such as hemoglobin, the oxygen carrier protein in blood: the concerted model, in which a protein has only two ”all-or-none” global states, vs. the sequential model that allows a number of different global conformational/energy states. Both, however, are based on just two local states of building blocks (subunits) in close analogy to magnetic spin states. In either model, a transition of one or more protein subunits leads to the global transition, in the case of hemoglobin, from the oxygen-releasing form to the oxygen-binding form, depending on the oxygen level in the blood stream. The concerted model, based on highly positive cooperativity, resembles the ferromagnetic phase transition, in which only two spin states account for the sharp phase transition between two global states. The sequential model, on the other hand, permits mixture of active and inactive subunits. Macol et al., constructed a version of an allosteric enzyme E. coli aspartate transcarbamoylase, which is composed of six equivalent catalytic monomers and six equivalent regulatory monomers in its native form, in such a way that only one of the six catalytic monomers could bind a substrate analog. Using solution x-ray scattering data recorded at BL4-2 to monitor the global structural state, they provided the first structural evidence that the transition of only one catalytic monomer is sufficient to transform the entire enzyme into the highly active state, lending strong support to the concerted model.

278

LDA - Measurements of Transitional Flows Induced by a Square Rib  

Science Conference Proceedings (OSTI)

New fundamental measurements are presented for the transition process in flat plate boundary layers downstream of two-dimensional square ribs. By use of laser Doppler anemometry (LDA) and a large Matched-Index-of-Refraction (MIR) flow system, data for wall-normal fluctuations and Reynolds stresses were obtained in the near wall region to y+<0.1 in addition to the usual mean streamwise velocity component and its fluctuation. By varying velocity and rib height, the experiment investigated the following range of conditions: k+ = 5.5 to 21, 0.3rapid even in flows where the mean velocity profile still showed laminar behavior.

Becker, S.; Durst, F.; Stoots, Carl Marcel; Condie, Keith Glenn; McEligot, Donald Marinus

2002-03-01T23:59:59.000Z

279

Phase transitions in nanoscale ferroelectric structures.  

Science Conference Proceedings (OSTI)

Over decades of effort, investigations of the intrinsic phase transition behavior of nanoscale ferroelectric structures have been greatly complicated by materials processing variations and by the common and uncontrolled occurrence of spacecharge, which interacts directly with the polarization and can obscure fundamental behavior. These challenges have largely been overcome, and great progress in understanding the details of this class of phase transitions has been made, largely based on advances in the growth of high-quality, epitaxial ferroelectric films and in the theory and simulation of ferroelectricity. Here we will discuss recent progress in understanding the ferroelectric phase transition in a particular class of model systems: nanoscale perovskite thin-film heterostructures. The outlook for ferroelectric technology based on these results is promising, and extensions to laterally confined nanostructures will be described.

Streiffer, S. K.; Fong, D. D. (Center for Nanoscale Materials); ( MSD)

2009-01-01T23:59:59.000Z

280

Innovation Ecosystems Spur Rapid Growth for Startups, Entrepreneurs |  

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

Innovation Ecosystems Spur Rapid Growth for Startups, Entrepreneurs Innovation Ecosystems Spur Rapid Growth for Startups, Entrepreneurs Innovation Ecosystems Spur Rapid Growth for Startups, Entrepreneurs September 14, 2011 - 4:22pm Addthis Rich Earley, CEO of Clean Urban Energy presents at Clean Energy Trust's Clean Energy Challenge in March 2011 | Courtesy of Clean Energy Trust Rich Earley, CEO of Clean Urban Energy presents at Clean Energy Trust's Clean Energy Challenge in March 2011 | Courtesy of Clean Energy Trust Sarah Jane Maxted Special Assistant, Office of Energy Efficiency & Renewable Energy What does this project do? Smart grid start-up company Clean Urban Energy secured $75,000 for its energy storage and smart grid performance optimization technology. Their system harnesses a building's inherent thermal mass to drive

Note: This page contains sample records for the topic "rapid transit systems" 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

Site Transition Process Upon Cleanup Completion | Department...  

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

Process Upon Cleanup Completion Site Transition Process Upon Cleanup Completion Site Transition Process Upon Cleanup Completion Site Transition Process Upon Cleanup Completion More...

282

Transit Infrastructure Finance Through Station Location Auctions  

E-Print Network (OSTI)

as the primary transit infrastructure finance method.Paper 2009-04 Transit Infrastructure Finance Through StationWP-2009-04 Transit Infrastructure Finance Through Station

Ian Carlton

2009-01-01T23:59:59.000Z

283

Evaluation Methods for Rail Transit Projects  

E-Print Network (OSTI)

Evaluation Methodsfor Rail Transit Projects Robert AEvaluation Methods for Rail Transit Projects Robert A.pie EVALUATION METHODS FOR RAIL TRANSIT PROJECTS ROBERT

Johnston, Robert A.; DeLuchi, Mark A.

1989-01-01T23:59:59.000Z

284

Transition Zone Geothermal Region | Open Energy Information  

Open Energy Info (EERE)

Transition Zone Geothermal Region (Redirected from Transition Zone) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Transition Zone Geothermal Region edit Details...

285

Transition of Sites from Environmental Management Memorandum...  

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

Transition of Sites from Environmental Management Memorandum of Understanding Transition of Sites from Environmental Management Memorandum of Understanding Transition of Sites from...

286

X-ray Transition Energies Search Form  

Science Conference Proceedings (OSTI)

[skip navigation] X-ray Transition Energies Database Main Page Search for X-ray transition energies by element(s), transition ...

287

Alameda-Contra Costa Transit District (AC Transit) Fuel Cell Transit Buses: Preliminary Evaluation Results  

DOE Green Energy (OSTI)

This report provides an evaluation of three prototype fuel cell-powered transit buses operating at AC Transit in Oakland, California, and six baseline diesel buses similar in design to the fuel cell buses.

Chandler, K.; Eudy, L.

2007-03-01T23:59:59.000Z

288

Functionalized Gold Nanoparticles for Rapid, Ultra- sensitive ...  

and Ocean Optics) Patent Baohua Gu. Functionalized Gold Surface-Enhanced Raman Scattering Substrate for Rapid and Ultra-Sensitive Detection of Anionic Species

289

Current Projects: Rapid Sampling Tools - Vulnerability Assessment...  

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

Applications include counter-terrorism, emergency response teams, drug and environmental raids, and waste management. For more information visit Rapid Sampling from Sealed...

290

Agent-Based Modeling and Simulation for Hydrogen Transition Analysis  

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

Agent Agent Agent - - Based Modeling Based Modeling and Simulation (ABMS) and Simulation (ABMS) for Hydrogen Transition for Hydrogen Transition Analysis Analysis Marianne Mintz Hydrogen Transition Analysis Workshop US Department of Energy January 26, 2006 Objectives and Scope for Phase 1 2 Analyze the hydrogen infrastructure development as a complex adaptive system using an agent-based modeling and simulation (ABMS) approach Develop an ABMS model to simulate the evolution of that system, spanning the entire H2 supply chain from production to consumption Identify key factors that either promote or inhibit the growth of H2 infrastructure Apply ABMS to get new insights into transition, particularly early transition phase - Dynamic interplay between supply and demand

291

The Transition To Electric Bikes In China: History And Key Reasons For Rapid Growth  

E-Print Network (OSTI)

that ushers in small battery electric cars. In any case, thethe Manufacture of Mini Electric Cars Based on Experience

Weinert, Jonathan X.; Ma, Chaktan; Cherry, Chris

2006-01-01T23:59:59.000Z

292

The experience and image of American elevated railways : rapid transit infrastructure in the urban consciousness  

E-Print Network (OSTI)

At the turn of the twentieth century, elevated railways were built out of a practical need to literally "elevate" traffic above the street. In most cases, these lines served two distinct purposes. They served existing ...

Hansen, Gordon Benedict

2009-01-01T23:59:59.000Z

293

Bus Rapid Transit Impacts on Land Uses and Land Values in Seoul, Korea  

E-Print Network (OSTI)

empirical research Studies of San on rail investments andOur research results are consistent with those on rail-

Cervero, Robert; Kang, Chang Deok

2009-01-01T23:59:59.000Z

294

s Herbert S. Levinson Bus Rapid Transit: An Overview Samuel Zimmerman  

E-Print Network (OSTI)

accident in October 2010, at the age of 26. In celebration of his life, his family, partner and friends

Bertini, Robert L.

295

The Transition To Electric Bikes In China: History And Key Reasons For Rapid Growth  

E-Print Network (OSTI)

Maintenance cost (RMB/yr) Battery Cost License cost (RMB)high due to the high battery cost. E-bikes failed duringbattery quality was low in terms of performance and lifetime, and costs

Weinert, Jonathan X.; Ma, Chaktan; Cherry, Chris

2006-01-01T23:59:59.000Z

296

Bus Rapid Transit Impacts on Land Uses and Land Values in Seoul, Korea  

E-Print Network (OSTI)

a GIS company based in Korea, for technical support and toKim from Veolia Transport Korea for assistance with thisPublic Transport. Seoul, Korea: Seoul Development Institute,

Cervero, Robert; Kang, Chang Deok

2009-01-01T23:59:59.000Z

297

Bus Rapid Transit and the use of AVL Technology: A Survey of Integrating Change  

E-Print Network (OSTI)

training and support programs sometimes needed to help technical change along. Researchers and management

Gillen, David; Johnson, Doug

2002-01-01T23:59:59.000Z

298

Evaluation of rainfall-induced landslide transit characterization  

E-Print Network (OSTI)

As landslide hazard has intensified in the past decades, the development of landslide hazard evaluation systems has become more and more important. However, not much attention is paid to discussing the landslide transition ...

Chen, Yi-Ting, Civ. E. Massachusetts Institute of Technology

2012-01-01T23:59:59.000Z

299

Evaluation of Operational Model Cyclone Structure Forecasts during Extratropical Transition  

Science Conference Proceedings (OSTI)

Cyclone structure is known to be directly linked to the sensible weather effects produced by the weather system. The extratropical transition (ET) process leads to immense changes in cyclone structure and therefore to changes in the associated ...

Jenni L. Evans; Justin M. Arnott; Francesca Chiaromonte

2006-11-01T23:59:59.000Z

300

Transit, Employment and Women on Welfare  

E-Print Network (OSTI)

reported transit and car usage and on the numberof timescar as an Important factor m determining transit usage Forcar and higher levels of transit access Theestimated coefficients of the multlvanateloglt regressions for transit usage

Ong, Paul M.; Houston, Douglas

2001-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "rapid transit systems" 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

Transit, Employment and Women on Welfare  

E-Print Network (OSTI)

reported transit and car usage and on the numberof timescar as an Important factor m determining transit usage Forcar and higher levels of transit access Theestimated coefficients of the multlvanateloglt regressions for transit usage

Ong, Paul M.; Houston, Douglas

2002-01-01T23:59:59.000Z

302

Stripe Disordering Transition  

E-Print Network (OSTI)

Abstract. We have recently begun Monte Carlo simulations of the dynamics of stripe phases in the cuprates. A simple model of spinodal decomposition of the holes allows us to incorporate Coulomb repulsion and coherency strains. We find evidence for a possible stripe disordering transition, at a temperature below the pseudogap onset. Experimental searches for such a transition can provide constraints for models of stripe formation. The relationship between stripe phases and the pseudogap in underdoped cuprates is not well understood. In our model [1–3] the pseudogap is primary. It represents an instability of the hole Fermi liquid driven by Van Hove nesting [4]. However, there is a competition of instabilities, with an antiferromagnet (or flux phase [5–7]) at half filling and a charge-density wave (CDW) at the bare Van Hove singularity (VHS) near optimal doping. This competition leads to a classical phase separation of the holes – two minima in the free energy [8,1]. This is restricted to a nanoscopic scale by long-range Coulomb effects, leading to phases similar to the experimentally observed stripe phases [9].

R. S. Markiewicz; M. T. Vaughn

1999-01-01T23:59:59.000Z

303

Does Fluctuating Nonlinear Hydrodynamics Support an Ergodic-Nonergodic Transition?  

E-Print Network (OSTI)

Despite its appeal, real and simulated glass forming systems do not undergo an ergodic-nonergodic (ENE) transition. We reconsider whether the fluctuating nonlinear hydrodynamics (FNH) model for this system, introduced by us in 1986, supports an ENE transition. Using nonperturbative arguments, with no reference to the hydrodynamic regime, we show that the FNH model does not support an ENE transition. Our results support the findings in the original paper. Assertions in the literature questioning the validity of the original work are shown to be in error.

Shankar P. Das; Gene F. Mazenko

2008-01-11T23:59:59.000Z

304

Building America Expert Meeting Report: Transitioning Traditional...  

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

Report: Transitioning Traditional HVAC Contractors to Whole House Performance Contractors Building America Expert Meeting Report: Transitioning Traditional HVAC Contractors to...

305

Lessons Learned: Battery-Electric Transit-Bus Opportunity Charging  

Science Conference Proceedings (OSTI)

This document details the results of a study of battery-electric bus opportunity charging. This document is an interim report pending conclusion of further experiments with at least one other rapid-charging system and battery type.

1999-12-10T23:59:59.000Z

306

Connecticut Transit (CTTRANSIT) Fuel Cell Transit Bus: Second Evaluation Report and Appendices  

DOE Green Energy (OSTI)

This report describes operations at Connecticut Transit (CTTRANSIT) in Hartford for one prototype fuel cell bus and three new diesel buses operating from the same location. The evaluation period in this report (January 2008 through February 2009) has been chosen to coincide with a UTC Power propulsion system changeout that occurred on January 15, 2008.

Chandler, K.; Eudy, L.

2009-05-01T23:59:59.000Z

307

Transit, Density, and Residential Satisfaction  

E-Print Network (OSTI)

High-Speed Rail," Fourteenth Australasian Transport ResearchRail Transit Stations and Property Values: A Hedonic Price Approach," in Transportation Research

Shaw, John G.

1994-01-01T23:59:59.000Z

308

Connecticut Transit (CTTRANSIT) Fuel Cell Transit Bus: Preliminary Evaluation Results  

DOE Green Energy (OSTI)

This report provides preliminary results from a National Renewable Energy Laboratory evaluation of a protoptye fuel cell transit bus operating at Connecticut Transit in Hartford. Included are descriptions of the planned fuel cell bus demonstration and equipment; early results and agency experience are also provided.

Chandler, K.; Eudy, L.

2008-10-01T23:59:59.000Z

309

Long Beach Transit: Two-Year Evaluation of Gasoline-Electric Hybrid Transit Buses  

DOE Green Energy (OSTI)

This report focuses on a gasoline-electric hybrid transit bus propulsion system. The propulsion system is an alternative to standard diesel buses and allows for reductions in emissions (usually focused on reductions of particulate matter and oxides of nitrogen) and petroleum use. Gasoline propulsion is an alternative to diesel fuel and hybrid propulsion allows for increased fuel economy, which ultimately results in reduced petroleum use.

Lammert, M.

2008-06-01T23:59:59.000Z

310

DOE Hydrogen Analysis Repository: Macro-System Model  

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

Macro-System Model Macro-System Model Project Summary Full Title: Macro-System Model (MSM) Project ID: 66 Principal Investigator: Mark Ruth Brief Description: Federated object model framework is used to link other models to perform rapid cross-cutting analysis. Keywords: Transition; well-to-wheels (WTW); renewable; hydrogen production; emissions; cost Purpose Perform rapid cross-cutting analysis by utilizing and linking other models. This work will also improve consistency between models. Analyses that require the MSM will be used to support decisions regarding programmatic investments and focus of funding and to estimate program outputs and outcomes. Performer Principal Investigator: Mark Ruth Organization: National Renewable Energy Laboratory (NREL) Address: 1617 Cole Blvd.

311

RDMD Transition Project  

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

ENERGY STORAGE PROGRAM AT THE PACIFIC NORTHWEST NATIONAL LABORATORIES JUN LIU PACIFIC NORTHWEST NATIONAL LABORATORY, RICHLAND, WA 99252 Funded by the Energy Storage Systems Program...

312

Bounds on tracking error using closed-loop rapidly-exploring random trees  

E-Print Network (OSTI)

This paper considers the real-time motion planning problem for autonomous systems subject to complex dynamics, constraints, and uncertainty. Rapidly-exploring random trees (RRT) can be used to efficiently construct trees ...

Luders, Brandon Douglas

313

Examining Rapid Onset Drought Development Using the Thermal Infrared–Based Evaporative Stress Index  

Science Conference Proceedings (OSTI)

Reliable indicators of rapid drought onset can help to improve the effectiveness of drought early warning systems. In this study, the evaporative stress index (ESI), which uses remotely sensed thermal infrared imagery to estimate ...

Jason A. Otkin; Martha C. Anderson; Christopher Hain; Iliana E. Mladenova; Jeffrey B. Basara; Mark Svoboda

2013-08-01T23:59:59.000Z

314

A Robust and Rapid Method of Producing Soluble, Stable, and Functional G-Protein Coupled Receptors  

E-Print Network (OSTI)

Membrane proteins, particularly G-protein coupled receptors (GPCRs), are notoriously difficult to express. Using commercial E.coli cell-free systems with the detergent Brij-35, we could rapidly produce milligram quantities ...

Baaske, Philipp

315

Water drives peptide conformational transitions  

E-Print Network (OSTI)

Transitions between metastable conformations of a dipeptide are investigated using classical molecular dynamics simulation with explicit water molecules. The distribution of the surrounding water at different moments before the transitions and the dynamical correlations of water with the peptide's configurational motions indicate that water is the main driving force of the conformational changes.

Nerukh, Dmitry

2011-01-01T23:59:59.000Z

316

Washington Metropolitan Area Transit Authority: Compressed Natural Gas Transit Bus Evaluation  

DOE Green Energy (OSTI)

Evaluates compressed natural gas (CNG) powered transit buses at Washington Metropolitan Area Transit Authority (WMATA), providing a comparison between them and standard diesel transit buses.

Chandler, K.; Eberts, E.; Melendez, M.

2006-04-01T23:59:59.000Z

317

Sampling diffusive transition paths  

SciTech Connect

We address the problem of sampling double-ended diffusive paths. The ensemble of paths is expressed using a symmetric version of the Onsager-Machlup formula, which only requires evaluation of the force field and which, upon direct time discretization, gives rise to a symmetric integrator that is accurate to second order. Efficiently sampling this ensemble requires avoiding the well-known stiffness problem associated with sampling infinitesimal Brownian increments of the path, as well as a different type of stiffness associated with sampling the coarse features of long paths. The fine-features sampling stiffness is eliminated with the use of the fast sampling algorithm (FSA), and the coarse-feature sampling stiffness is avoided by introducing the sliding and sampling (S&S) algorithm. A key feature of the S&S algorithm is that it enables massively parallel computers to sample diffusive trajectories that are long in time. We use the algorithm to sample the transition path ensemble for the structural interconversion of the 38-atom Lennard-Jones cluster at low temperature.

F. Miller III, Thomas; Predescu, Cristian

2006-10-12T23:59:59.000Z

318

Koba-Nielsen-Olesen scaling and phase transitions of the Feynman-Wilson gas  

SciTech Connect

The implications of Koba-Nielsen-Olesen scaling on the thermodynamic properties of the Feynman-Wilson gas are discussed. Consequences of the existence of a thermodynamic limit as a fundamental demand on hadronic physics at asymptotic energies are deduced. It is generally found that the Feynman-Wilson gas undergoes a phase transition at infinite energies. First-order transitions lead to average multiplicity growth like the rapidity Y, while higher-order transitions correspond to the behavior suggested by the absorptive-model cutting rules in Pomeron calculus. Possible links with the critical phenomena obtained in Reggeon field theories are conjectured. (AIP)

Antoniou, N.G.; Poulopoulos, P.N.; Vlassopulos, S.D.P.; Kouris, C.B.

1976-12-15T23:59:59.000Z

319

Zipf's Law in the Liquid Gas Phase Transition of Nuclei  

E-Print Network (OSTI)

Zipf's law in the field of linguistics is tested in the nuclear disassembly within the framework of isospin dependent lattice gas model. It is found that the average cluster charge (or mass) of rank $n$ in the charge (or mass) list shows exactly inversely to its rank, i.e., there exists Zipf's law, at the phase transition temperature. This novel criterion shall be helpful to search the nuclear liquid gas phase transition experimentally and theoretically. In addition, the finite size scaling of the effective phase transition temperature at which the Zipf's law appears is studied for several systems with different mass and the critical exponents of $\

Y. G. Ma

2000-10-23T23:59:59.000Z

320

Kinetics of quasi-isoenergetic transition processes in biological macromolecules  

E-Print Network (OSTI)

A master equation describing the evolution of averaged molecular state occupancies in molecular systems where alternation of molecular energy levels is caused by discrete dichotomous and trichotomous stochastic fields, is derived. This study is focused on the kinetics of quasi-isoenergetic transition processes in the presence of moderately high frequency stochastic field. A novel physical mechanism for temperature-independent transitions in flexible molecular systems is proposed. This mechanism becomes effective when the conformation transitions between quasi-isoenergetic molecular states take place. At room temperatures, stochastic broadening of molecular energy levels predominates the energy of low frequency vibrations accompanying the transition. This leads to a cancellation of the temperature dependence in the stochastically averaged rate constants. As examples, physical interpretations of the temperature-independent onset of P2X$_3$ receptor desensitization in neuronal membranes, as well as degradation of PER2 protein in embrionic fibroblasts, are provided.

E. G. Petrov; V. I. Teslenko

2012-12-05T23:59:59.000Z

Note: This page contains sample records for the topic "rapid transit systems" 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

City of Grand Rapids Building Solar Roof Demonstration  

SciTech Connect

Grand Rapids, Michigan is striving to reduce it environmental footprint. The municipal government organization has established environmental sustainability policies with the goal of securing 100% of its energy from renewable sources by 2020. This report describes the process by which the City of Grand Rapids evaluated, selected and installed solar panels on the Water/Environmental Services Building. The solar panels are the first to be placed on a municipal building. Its new power monitoring system provides output data to assess energy efficiency and utilization. It is expected to generate enough clean solar energy to power 25 percent of the building. The benefit to the public includes the economic savings from reduced operational costs for the building; an improved environmentally sustainable area in which to live and work; and increased knowledge about the use of solar energy. It will serve as a model for future energy saving applications.

DeClercq, Mark; Martinez, Imelda

2012-08-31T23:59:59.000Z

322

Rethinking Renormalization for Quantum Phase Transitions  

E-Print Network (OSTI)

This is a conceptual paper that re-examines the principles underlying the application of renormalization theory to quantum phase transitions in the light of quantum information theory. We start by describing the intuitive argument known as the Kadanoff ``block-spin'' construction for spins fixed on a lattice and then outline some subsequent ideas by Wilson and White. We then reconstruct these concepts for quantum phase transitions from first principles. This new perspective offers some very natural explanations for some features of renormalization theory that had previously seemed rather mysterious, even contrived. It also offers some suggestions as to how we might modify renormalization methods to make them more successful. We then discuss some possible order parameters and a class of functionals that are analogues of the correlation length in such systems.

Hilary A. Carteret

2004-05-28T23:59:59.000Z

323

Structural transitions in laterally compressed two-dimensional Coulomb clusters  

Science Conference Proceedings (OSTI)

We model structural transitions of small-size Wigner crystals in laterally compressed two-dimensional traps. Ground and metastable configurations are calculated and their transformations are linked to conspicuous changes in the heat capacity of the system. We show that various types of structural transitions are reflected by characteristic features in the behavior of the heat capacity. For deeper understanding, results produced by the Monte Carlo numerical calculations are compared to predictions of simple one-dimensional models.

Rancova, O.; Anisimovas, E.; Varanavicius, T. [Department of Theoretical Physics, Vilnius University, Sauletekio 9, LT-10222 Vilnius (Lithuania)

2011-03-15T23:59:59.000Z

324

Low Frequency Acoustic Resonance Studies of the Liquid-Vapor Transition in Silica Aerogel  

E-Print Network (OSTI)

Fluid phase transitions in porous media are a powerful probe of the effect of confinement and disorder on phase transitions. Aerogel may provide a model system in which to study the effect of dilute impurities on a variety of phase transitions. In this paper we present a series of low frequency acoustic experiments on the effect of aerogel on the liquid-vapor phase transition. Acoustic resonators were used to study the liquid-vapor transition in two fluids (helium and neon) and in two different porosity aerogels (95% and 98%). While effective coexistence curves could be mapped out, the transition was sometimes difficult to pinpoint, leading to doubt as to whether this transition can be treated as an equilibrium macroscopic phase transition at all.

Tobias Herman; John Beamish

2005-06-30T23:59:59.000Z

325

Phase Transition in Reconstituted Chromatin  

E-Print Network (OSTI)

By observing reconstituted chromatin by fluorescence microscopy (FM) and atomic force microscopy (AFM), we found that the density of nucleosomes exhibits a bimodal profile, i.e., there is a large transition between the dense and dispersed states in reconstituted chromatin. Based on an analysis of the spatial distribution of nucleosome cores, we deduced an effective thermodynamic potential as a function of the nucleosome-nucleosome distance. This enabled us to interpret the folding transition of chromatin in terms of a first-order phase transition. This mechanism for the condensation of chromatin is discussed in terms of its biological significance.

Tonau Nakai; Kohji Hizume; Shige. H. Yoshimura; Kunio Takeyasu; Kenichi Yoshikawa

2004-07-07T23:59:59.000Z

326

Rock Rapids Municipal Utility | Open Energy Information  

Open Energy Info (EERE)

Rapids Municipal Utility Rapids Municipal Utility Jump to: navigation, search Name Rock Rapids Municipal Utility Place Iowa Utility Id 16206 Utility Location Yes Ownership M NERC Location MRO NERC MRO Yes Operates Generating Plant Yes Activity Generation Yes Activity Transmission Yes Activity Buying Transmission Yes Activity Distribution Yes References EIA Form EIA-861 Final Data File for 2010 - File1_a[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Utility Rate Schedules Grid-background.png Commercial Power (Single-Phase) Commercial Commercial Power (Three-Phase) Commercial Residential Power Residential Average Rates Residential: $0.0807/kWh Commercial: $0.0633/kWh Industrial: $0.0899/kWh

327

Role of the Indo-Pacific Interbasin Coupling in Predicting Asymmetric ENSO Transition and Duration  

Science Conference Proceedings (OSTI)

Warm and cold phases of El Niño–Southern Oscillation (ENSO) exhibit a significant asymmetry in their transition/duration such that El Niño tends to shift rapidly to La Niña after the mature phase, whereas La Niña tends to persist for up to 2 yr. ...

Masamichi Ohba; Masahiro Watanabe

2012-05-01T23:59:59.000Z

328

RRTT - Rapid Response Team for Transmission  

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

Rapid Response Team- Rapid Response Team- Transmission Exploring the Business Link Opportunity: Transmission & Clean Energy Development in the West TRIBAL LEADER FORUM SERIES February 7, 2012 Laura Smith Morton Department of Energy Laura.morton@hq.doe.gov Nine Agency MOU * Improves uniformity, consistency, and transparency - Establishes the roles and responsibilities of the nine signatory agencies regarding electric transmission infrastructure project applicants * Provides single point of contact for coordinating all federal authorizations required to locate electric transmission facilities on federal land * Establishes DOE (under authority pursuant to section 216(h) of the FPA) as lead agency for coordinating all federal authorizations and related environmental

329

Transitions between Baroclinic Flow Regimes  

Science Conference Proceedings (OSTI)

we use truncated spectral Eady models with two Ekman layers of different strength to investigate the baroclinic flow transitions observed in annulus experiments. Our analysis is both analytical and numerical As the dissipation parameter is varied ...

H-Y. Weng; A. Barcilon; J. Magnan

1986-08-01T23:59:59.000Z

330

SUBSIDY ENERGY EMPLOYEES TRANSIT (SEET)  

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

SUBSIDY ENERGY EMPLOYEES TRANSIT (SEET) SUBSIDY ENERGY EMPLOYEES TRANSIT (SEET) Decrease in the Transit Subsidy Per The American Taxpayer Relief Act of 2012, the maximum amount for the Transit Subsidy is due to decrease from $245 to $130 a month. This change is scheduled to take effect on January 1, 2014. Outlined below are actions that you must take to purchase your fare for January 2014. SmarTrip less than $130.00 Per Month No Action Required SmarTrip greater than $130.00 Per Month Action Required SmarTrip Participants The new amount of $130 will post to your Smart Benefits account the first time you touch your card to a SmarTrip target in January 2014. You must ensure that there is money in your personal account. Metro will deduct fare from your personal account once the Smart Benefits

331

Process for Transition of Responsibilities | Department of Energy  

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

Responsibilities Process for Transition of Responsibilities Process for Transition of Responsibilities (Waste Management Conference 2006) Process for Transition of Responsibilities...

332

IEC 61850 Implementation and Transition  

Science Conference Proceedings (OSTI)

This IEC 61850 Implementation and Transition survey report summarizes results of an EPRI survey designed to understand adoption and usage of IEC 61850 within utilities as of 2011. Implementing IEC 61850 within a utility is not necessarily easy or straightforward. While transitioning electromechanical relays to microprocessors is a relatively straightforward process, taking advantage of the entire suite of benefits enabled by IEC-61850-enabled devices is another matter altogether. Utilities have to consid...

2011-12-06T23:59:59.000Z

333

Building Technologies Office: Transitioning Traditional HVAC...  

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

Transitioning Traditional HVAC Contractors to Whole House Performance Expert Meeting to someone by E-mail Share Building Technologies Office: Transitioning Traditional HVAC...

334

Transition Zone Geothermal Region | Open Energy Information  

Open Energy Info (EERE)

Transition Zone Geothermal Region Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Transition Zone Geothermal Region edit Details Areas (5) Power Plants (0) Projects...

335

Power Marketing Administrations Leading the Nation's Transition...  

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

Marketing Administrations Leading the Nation's Transition to a 21st Century Electric Grid Power Marketing Administrations Leading the Nation's Transition to a 21st Century Electric...

336

Rapid Data Assimilation in the Indoor Environment: Theory and...  

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

Rapid Data Assimilation in the Indoor Environment: Theory and Examples from Real-Time Interpretation of Indoor Plumes of Airborne Chemical Title Rapid Data Assimilation in the...

337

Rapid Data Assimilation in the Indoor Environment: theory and...  

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

Rapid Data Assimilation in the Indoor Environment: theory and examples from real-time interpretation of indoor plumes of airborne chemicals Title Rapid Data Assimilation in the...

338

Development of Site Transition Plan, Use of the Site Transition Framework,  

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

Development of Site Transition Plan, Use of the Site Transition Development of Site Transition Plan, Use of the Site Transition Framework, and Terms and Conditions for Site Transition Development of Site Transition Plan, Use of the Site Transition Framework, and Terms and Conditions for Site Transition This memorandum provides additional guidance on preparation of the Site Transition Plan (STP). Development of Site Transition Plan, Use of the Site Transition Framework, and Terms and Conditions for Site Transition More Documents & Publications Site Transition Summary: Cleanup Completion to Long-Term Stewardship at Department of Energy On-going Mission Sites Process for Transition of Responsibilities Process for Transition of Uranium Mill Tailings Radiation Control Act Title II Disposal Sites to the U.S. Department of Energy Office of Legacy

339

Scaling Effects in the CSP Phase Transition \\Lambda Ian P. Gent y , Ewan MacIntyre, y Patrick Prosser y , and Toby Walsh z  

E-Print Network (OSTI)

Scaling Effects in the CSP Phase Transition \\Lambda Ian P. Gent y , Ewan MacIntyre, y Patrick of Strathclyde April 18, 1995 Abstract Phase transitions in constraint satisfaction problems (CSP's) are the subject of intense study. We identify an order parameter for random binary CSP's. There is a rapid

St Andrews, University of

340

Terms and Conditions for Site Transition | Department of Energy  

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

Terms and Conditions for Site Transition Terms and Conditions for Site Transition Terms and Conditions for Site Transition Terms and Conditions for Site Transition More Documents &...

Note: This page contains sample records for the topic "rapid transit systems" 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

Rapid low fidelity turbomachinery disk optimization  

Science Conference Proceedings (OSTI)

Turbomachinery disks are heavy, highly stressed components used in gas turbines. Improved design of turbomachinery disks could yield a significant reduction in engine weight. This paper focuses on rapid low fidelity design and optimization of isotropic ... Keywords: Flywheel, Optimization, Plane stress, Turbomachinery disk

David P. Gutzwiller; Mark G. Turner

2010-05-01T23:59:59.000Z

342

GOES Observation of a Rapidly Melting Snowband  

Science Conference Proceedings (OSTI)

GOES observation of rapid dissipation of a 5–10 cm (2–4 inches) depth snowband over the central and upper Mississippi River valley on 15 April 1980 is presented. Differences in the local weather between the stations with and without melting snow ...

Carlyle H. Wash; Delain A. Edman; John Zapotocny

1981-06-01T23:59:59.000Z

343

Microchemical systems for rapid optimization of organic synthesis  

E-Print Network (OSTI)

In the chemistry laboratory, the desire to use smaller quantities of material to minimize both reagent cost and waste generation has driven chemists to develop new experimental techniques. The current approach to small ...

Murphy, Edward R

2006-01-01T23:59:59.000Z

344

Rapid development of a wireless infrastructure monitoring system  

E-Print Network (OSTI)

Much academic literature exists in the fields of Product Development and Project Management. This thesis uses the framework provided by the literature to analyze a case study development project which the author led from ...

Brooks, James Raymond, 1973-

2004-01-01T23:59:59.000Z

345

RAPID-CURE COATINGS SYSTEM - Energy Innovation Portal  

Solar Photovoltaic; Solar Thermal; Startup America; Vehicles and Fuels; ... Outdoor infrastructure where durability and long service life in all weath ...

346

on Energy Transition and CO2 Price  

E-Print Network (OSTI)

This paper examines the impact that uncertainty over economic growth may have on global energy transition and CO2 prices. We use a general-equilibrium model derived from MERGE, and define several stochastic scenarios for economic growth. Each scenario is characterized by the likelihood of a rapid global economic recovery. More precisely, during each decade, global economy may- with a given probability- shift from the EIA's (2010) low-economic-growth path to the EIA's (2010) high-economic-growth path. The climate policy considered corresponds in the medium term to the commitments announced after the Copenhagen conference, and in the long term to a reduction of 25 % in global energy-related CO2 emissions (with respect to 2005). For the prices of CO2 and electricity, as well as for the implementation of CCS, the branches of the resulting stochastic trajectories appear to be heavily influenced by agents ’ initial expectations of future economic growth and by the economic growth actually realized. Thus, in 2040, the global price of CO2 may range from $21 (when an initially-anticipated economic recovery never occurs) to $128 (in case of nonanticipated rapid economic recovery). In addition, we show that within each region, the model internalizes the constraints limiting the expansion of each power-generation technology through the price paid by the power utility for the acquisition of new production capacity. As a result, in China, the curves of endogenous investment costs for onshore and offshore wind are all bubble-shaped centered on 2025, a date which corresponds to the establishment of a global CO2 cap-and-trade market in the model. 1.

Olivier Dur; Axel Pierru; Yves Smeers; Olivier Dur; Lasserve A; Axel Pierru B; Yves Smeers A

2011-01-01T23:59:59.000Z

347

Liquid-gas phase transition in strange hadronic matter  

E-Print Network (OSTI)

The liquid-gas phase transition in strange hadronic matter is studied utilizing an extended Furnstahl-Serot-Tang model with nucleons and hyperons. The system is treated as of two components. The phase transition is analyzed by investigating the stability of the system and Gibbs conditions for phase equilibrium. A two-dimensional binodal surface resulted from the two-phase equilibrium, namely the phase boundary, is obtained. For each temperature ranging from T = 8 MeV to T = 12 MeV, a limit pressure on the binodal surface section is found, while a critical point is spotted for the temperature around T = 13 MeV. The Maxwell constructions are also illustrated to give a vivid description of the course of the phase transition. Moreover, the entropy per baryon and heat capacity per baryon as functions of temperature are examined. The entropy is continuous during the phase transition but the heat capacity is discontinuous, indicating that the phase transition is of second order. By these efforts, the L-G phase transition can be concluded to exist in the strange hadronic matter.

Li Yang; Wei Liang Qian; Ru-Keng Su; Hong Qiu Song

2003-11-06T23:59:59.000Z

348

Rapid Rotation, Active Nests of Convection and Global-scale Flows in Solar-like Stars  

E-Print Network (OSTI)

In the solar convection zone, rotation couples with intensely turbulent convection to build global-scale flows of differential rotation and meridional circulation. Our sun must have rotated more rapidly in its past, as is suggested by observations of many rapidly rotating young solar-type stars. Here we explore the effects of more rapid rotation on the patterns of convection in such stars and the global-scale flows which are self-consistently established. The convection in these systems is richly time dependent and in our most rapidly rotating suns a striking pattern of spatially localized convection emerges. Convection near the equator in these systems is dominated by one or two patches of locally enhanced convection, with nearly quiescent streaming flow in between at the highest rotation rates. These active nests of convection maintain a strong differential rotation despite their small size. The structure of differential rotation is similar in all of our more rapidly rotating suns, with fast equators and slower poles. We find that the total shear in differential rotation, as measured by latitudinal angular velocity contrast, Delta_Omega, increases with more rapid rotation while the relative shear, Delta_Omega/Omega, decreases. In contrast, at more rapid rotation the meridional circulations decrease in both energy and peak velocities and break into multiple cells of circulation in both radius and latitude.

Benjamin P. Brown; Matthew K. Browning; Allan Sacha Brun; Mark S. Miesch; Juri Toomre

2008-01-10T23:59:59.000Z

349

Magnetotellurics At Walker-Lane Transitional Zone Region (Pritchett, 2004)  

Open Energy Info (EERE)

Walker-Lane Transitional Zone Region (Pritchett, 2004) Walker-Lane Transitional Zone Region (Pritchett, 2004) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Magnetotellurics At Walker-Lane Transitional Zone Region (Pritchett, 2004) Exploration Activity Details Location Walker-Lane Transition Zone Geothermal Region Exploration Technique Magnetotellurics Activity Date Usefulness useful DOE-funding Unknown Notes NOTE: These are theoretical/computer simulation tests of various methods on eight hypothetical 'model' basing-and-range geothermal systems. "The 300-meter heat flow holes are essentially useless for finding the "hidden" reservoirs. Clearly, the best results are obtained from the SP and MT surveys, with DC resistivity a close third. It is concluded that the best

350

TRI State Motor Transit to Resume Shipping Waste to WIPP  

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

Tri-State Motor Transit to Resume Tri-State Motor Transit to Resume Shipping Transuranic Waste to WIPP CARLSBAD, N.M., January 19, 2001 - Tri-State Motor Transit will resume shipping waste to the Waste Isolation Pilot Plant (WIPP) January 22, transporting transuranic waste from the Idaho National Engineering and Environmental Laboratory (INEEL) to WIPP. This will be the first shipment by Tri-State Motor Transit (TSMT) to WIPP since the November 21 incident in which drivers hauling waste from INEEL to WIPP failed to make the turn off from I-25 onto U.S. 285, deviating from the designated transportation route by 27 miles. The New Mexico State Police noticed the route deviation and contacted the TRANSCOM Control Center (TCC) in Albuquerque to verify that the shipment was off course. The TCC confirmed the route deviation using their tracking system and notified the drivers, via

351

Quantum mechanical and information theoretic view on classical glass transitions  

E-Print Network (OSTI)

Using the mapping of the Fokker-Planck description of classical stochastic dynamics onto a quantum Hamiltonian, we argue that a dynamical glass transition in the former must have a precise definition in terms of a quantum phase transition in the latter. At the dynamical level, the transition corresponds to a collapse of the excitation spectrum at a critical point. At the static level, the transition affects the ground state wavefunction: while in some cases it could be picked up by the expectation value of a local operator, in others the order may be non-local, and impossible to be determined with any local probe. Here we propose instead to use concepts from quantum information theory that are not centered around local order parameters, such as fidelity and entanglement measures. We show that for systems derived from the mapping of classical stochastic dynamics, singularities in the fidelity susceptibility translate directly into singularities in the heat capacity of the classical system. In classical glassy systems with an extensive number of metastable states, we find that the prefactor of the area law term in the entanglement entropy jumps across the transition. We also discuss how entanglement measures can be used to detect a growing correlation length that diverges at the transition. Finally, we illustrate how static order can be hidden in systems with a macroscopically large number of degenerate equilibrium states by constructing a three dimensional lattice gauge model with only short-range interactions but with a finite temperature continuous phase transition into a massively degenerate phase.

Claudio Castelnovo; Claudio Chamon; David Sherrington

2010-03-19T23:59:59.000Z

352

Trapping ultracold gases near cryogenic materials with rapid reconfigurability  

E-Print Network (OSTI)

We demonstrate a novel atom chip trapping system that allows the placement and high-resolution imaging of ultracold atoms within microns from any exchange with minimal experimental downtime. The sample is not connected to the atom chip, allowing rapid exchange without perturbing the atom chip or laser cooling apparatus. Exchange of the sample and retrapping of atoms has been performed within a week turnaround, limited only by chamber baking. Moreover, the decoupling of sample and atom chip provides the ability to independently tune the sample temperature and its position with respect to the trapped ultracold gas, which itself may remain in the focus of a high-resolution imaging system. As a first demonstration of this new system, we have confined a 700-nK cloud of 8x10^4 87Rb atoms within 100 um of a gold-mirrored 100-um-thick silicon substrate. The substrate was cooled to 35 K without use of a heat shield, while the atom chip, 120 um away, remained at room temperature. Atoms may be imaged and retrapped every 16 s, allowing rapid data collection.

Matthew A. Naides; Richard W. Turner; Ruby A. Lai; Jack M. DiSciacca; Benjamin L. Lev

2013-11-08T23:59:59.000Z

353

Rapid automatic keyword extraction for information retrieval and analysis  

SciTech Connect

Methods and systems for rapid automatic keyword extraction for information retrieval and analysis. Embodiments can include parsing words in an individual document by delimiters, stop words, or both in order to identify candidate keywords. Word scores for each word within the candidate keywords are then calculated based on a function of co-occurrence degree, co-occurrence frequency, or both. Based on a function of the word scores for words within the candidate keyword, a keyword score is calculated for each of the candidate keywords. A portion of the candidate keywords are then extracted as keywords based, at least in part, on the candidate keywords having the highest keyword scores.

Rose, Stuart J (Richland, WA); Cowley,; Wendy E (Richland, WA); Crow, Vernon L (Richland, WA); Cramer, Nicholas O (Richland, WA)

2012-03-06T23:59:59.000Z

354

Abrupt structural transitions involving functionally optimal networks  

E-Print Network (OSTI)

We show analytically that abrupt structural transitions can arise in functionally optimal networks, driven by small changes in the level of transport congestion. Our findings are based on an exactly solvable model system which mimics a variety of biological and social networks. Our results offer an explanation as to why such diverse sets of network structures arise in Nature (e.g. fungi) under essentially the same environmental conditions. As a by-product of this work, we introduce a novel renormalization scheme involving `cost motifs' which describes analytically the average shortest path across multiple-ring-and-hub networks.

Jarrett, T C; Fricker, M; Johnson, N F; Jarrett, Timothy C.; Ashton, Douglas J.; Fricker, Mark; Johnson, Neil F.

2005-01-01T23:59:59.000Z

355

Abrupt structural transitions involving functionally optimal networks  

E-Print Network (OSTI)

We show analytically that abrupt structural transitions can arise in functionally optimal networks, driven by small changes in the level of transport congestion. Our findings are based on an exactly solvable model system which mimics a variety of biological and social networks. Our results offer an explanation as to why such diverse sets of network structures arise in Nature (e.g. fungi) under essentially the same environmental conditions. As a by-product of this work, we introduce a novel renormalization scheme involving `cost motifs' which describes analytically the average shortest path across multiple-ring-and-hub networks.

Timothy C. Jarrett; Douglas J. Ashton; Mark Fricker; Neil F. Johnson

2005-08-31T23:59:59.000Z

356

RDMD Transition Project  

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

ENERGY STORAGE PROGRAM AT THE PACIFIC ENERGY STORAGE PROGRAM AT THE PACIFIC NORTHWEST NATIONAL LABORATORIES JUN LIU PACIFIC NORTHWEST NATIONAL LABORATORY, RICHLAND, WA 99252 Funded by the Energy Storage Systems Program of the U.S. Department Of Energy through Pacific Northwest National Laboratories Transformational Materials Science Initiative Launched the $15M Transformational Materials Science Initiative at PNNL to address the materials science challenges for energy storage in 2007. Conducted a PNNL workshop on the research needs for stationary energy storage; Initiated nanostructured electrode materials research for Li-ion batteries; Initiated proof-of-concept work for planar Na-beta batteries; Started to explore the fundamental chemistry in redox flow batteries; Supported the initial development of the method for grid analysis.

357

RDMD Transition Project  

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

EMERGING TECHNOLOGIES FOR LARGE SCALE ENERGY EMERGING TECHNOLOGIES FOR LARGE SCALE ENERGY STORAGE - TOWARDS LOW TEMPERATURE SODIUM BATTERIES JUN LIU PACIFIC NORTHWEST NATIONAL LABORATORY, RICHLAND, WA 99252 PNNL: Zhenguo Yang, Yuliang Cao, Xiaolin Li, Lifeng Xiao Sandia: Bruce C. Bunker Supported by PNNL's transformational Materials Science Initiative Funded by the Energy Storage Systems Program of the U.S. Department Of Energy through Pacific Northwest National Laboratories Significant challenges for meeting the long term low cost and reliability requirement for stationary energy storage. Distributed storage Central storage End user storage Capital cost ($/kWh) CAES Pumped Hydro Power Stationary 1 kW 100 kW 10 MW 1 GW 10 kW 1 MW 100 MW Li Ion Battery NaS, Na metal halide Vehicle Energy Density and Cost Lifetime and Capital Cost

358

The Four Dimensions of Rail Transit Performance: How Administration, Finance, Demographics, and Politics Affect Outcomes  

E-Print Network (OSTI)

Std. Err. PDOM Coef. Std. Err. PASSVE H * Light Rail Forlight rail transit systems in the US the interpretation ofonly a small number of light rail systems in the US and each

Compin, Nicholas Shawn

1999-01-01T23:59:59.000Z

359

Live pathogens: rapid detection technique developed  

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

January » January » Live Pathogens: Rapid Detection Technique Developed Live pathogens: rapid detection technique developed The technique relies on bacteria being critically dependent upon the key nutrient iron. January 24, 2013 Colorized scanning electron micrograph of E. coli. Colorized scanning electron micrograph of E. coli. Photo credit: US Centers for Disease Control and Prevention LANL's new method eliminates the need for laboratory culture and greatly speeds the process. Los Alamos researchers have developed a better technique for quick detection of live pathogens in the field. Identification of viable bacteria in a complex environment is scientifically challenging. Current detection and diagnostic techniques are inadequate in major public health emergencies, such as outbreaks of food-borne illness. Detection of live

360

Why are gasoline prices falling so rapidly?  

Gasoline and Diesel Fuel Update (EIA)

Why are gasoline prices falling so rapidly? Why are gasoline prices falling so rapidly? As of October 29, 2001, the national average retail price of regular gasoline was $1.235 per gallon, its lowest level since November 8, 1999 (Figure 1). The average price has fallen 29 cents in 6 weeks since September 17, with further declines perhaps to come. The sharpest decline has been in the Midwest (Petroleum Administration for Defense District 2), where the average has dropped 57 cents in 8 weeks since Labor Day (September 3). Additionally, this decline comes on the heels of a 33-cent drop in the national average in 10 weeks from Memorial Day through August 6, interrupted only by a brief 17-cent rise in August. In total, the national average retail gasoline price has fallen nearly 48 cents from its peak on May 14. This is already the widest one-year range in retail prices

Note: This page contains sample records for the topic "rapid transit systems" 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

Cedar Rapids Wind Project | Open Energy Information  

Open Energy Info (EERE)

Wind Project Wind Project Jump to: navigation, search Name Cedar Rapids Wind Project Facility Cedar Rapids Sector Wind energy Facility Type Community Wind Location NE Coordinates 41.562199°, -98.148048° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":41.562199,"lon":-98.148048,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

362

Lab transitions employee giving campaigns  

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

Lab transitions employee giving campaigns Lab transitions employee giving campaigns Community Connections: Our link to Northern New Mexico Communities Latest Issue:Dec. 2013 - Jan. 2014 All Issues » submit Lab transitions employee giving campaigns This year's theme: "I Give Because..." November 1, 2013 Employee Giving Logo The theme for this year's employee giving campaigns Contact Community Programs Office Director Kurt Steinhaus Email Editor Linda Anderman Email During the past seven years contributions to the Lab's annual employee giving campaign have risen by 370 percent and hopes to surpass the $3.1 million amount collected last year. As in past years, that amount includes a $1 million dollar match from the Lab's manager, Los Alamos National Security, LLC (LANS). The funds support nonprofits within the region and

363

Connecticut Transit (CTTRANSIT) Fuel Cell Transit Bus: Third Evaluation Report and Appendices  

DOE Green Energy (OSTI)

This report describes operations at Connecticut Transit (CTTRANSIT) in Hartford for one prototype fuel cell bus and three new diesel buses operating from the same location. The prototype fuel cell bus was manufactured by Van Hool and ISE Corp. and features an electric hybrid drive system with a UTC Power PureMotion 120 Fuel Cell Power System and ZEBRA batteries for energy storage. The fuel cell bus started operation in April 2007, and evaluation results through October 2009 are provided in this report.

Chandler, K.; Eudy, L.

2010-01-01T23:59:59.000Z

364

Transition Time Bounded Low-power Clock Tree Construction Min Pan, Chris Chong-Nuen Chu and J. Morris Chang  

E-Print Network (OSTI)

Transition Time Bounded Low-power Clock Tree Construction Min Pan, Chris Chong-Nuen Chu and J signal extremely tight. Hence, it is necessary to have transition time bounds to construct low-power clock trees in high performance systems. In this paper, we formulate the transition time bounded low-power

Chu, Chris C.-N.

365

Bimodality: a possible experimental signature of the liquid-gas phase transition of nuclear matter  

E-Print Network (OSTI)

We have observed a bimodal behaviour of the distribution of the asymmetry between the charges of the two heaviest products resulting from the decay of the quasi-projectile released in binary Xe+Sn and Au+Au collisions from 60 to 100 MeV/u. Event sorting has been achieved through the transverse energy of light charged particles emitted on the quasi-target side, thus avoiding artificial correlations between the bimodality signal and the sorting variable. Bimodality is observed for intermediate impact parameters for which the quasi-projectile is identified. A simulation shows that the deexcitation step rather than the geometry of the collision appears responsible for the bimodal behaviour. The influence of mid-rapidity emission has been verified. The two bumps of the bimodal distribution correspond to different excitation energies and similar temperatures. It is also shown that it is possible to correlate the bimodality signal with a change in the distribution of the heaviest fragment charge and a peak in potential energy fluctuations. All together, this set of data is coherent with what would be expected in a finite system if the corresponding system in the thermodynamic limit exhibits a first order phase transition.

M. Pichon; B. Tamain; R. Bougault; F. Gulminelli; O. Lopez

2006-02-03T23:59:59.000Z

366

Intelligent Systems Division Homepage  

Science Conference Proceedings (OSTI)

... the versatility, autonomy, and rapid re-tasking of intelligent robots and automation technologies for smart manufacturing and cyber-physical systems ...

2013-08-06T23:59:59.000Z

367

The Effects of Geometry on the Corona-to-Streamer Discharge Transition  

E-Print Network (OSTI)

The electric spark discharge has been studied for hundreds of years, yet many details of the phenomenon remain elusive. One particular area in the field of spark discharges that has yet to be explored in depth is the transition region between the corona and the streamer discharge. The parameters that characterize the transition region are purely geometric for a given potential difference applied between two electrodes. For the case of a point-to-plane electrode geometry, the transition between the oscillating corona discharge and the rapidly-growing streamer discharge is determined by the radius of curvature of the anode. In this contribution, the transition radius of curvature is found analytically using simplified models of each discharge and the principle of least action. For a sufficiently small anode, the corona discharge is also shown to be energetically more favorable at all radii of curvature, supporting the general claim that corona discharges are most readily produced on thin wires.

Humbird, Kelli D

2013-05-01T23:59:59.000Z

368

New developments in noise control for HVAC systems.  

Science Conference Proceedings (OSTI)

The HVAC equipment industry is not known for rapid change. Although control systems have improved rapidly over the past few years

Timothy J. Foulkes

1996-01-01T23:59:59.000Z

369

Ashok Leyland: IT in Transition  

Science Conference Proceedings (OSTI)

An organization that has been traditionally known to have a strong in house information technology development team and has successfully managed a home grown ERP solution for over a decade faces a transition point. Ashok Leyland, a large leading Indian ... Keywords: Automobile, Enterprise Resource Planning ERP, Homegrown Solutions, Implementation, India

Priya Seetharaman; Ambreen Alam Sajjad

2012-07-01T23:59:59.000Z

370

Transition metal sulfide loaded catalyst  

DOE Patents (OSTI)

A zeolite-based catalyst is described for activation and conversion of methane. A zeolite support includes a transition metal (Mo, Cr or W) sulfide disposed within the micropores of the zeolite. The catalyst allows activation and conversion of methane to C[sub 2]+ hydrocarbons in a reducing atmosphere, thereby avoiding formation of oxides of carbon.

Maroni, V.A.; Iton, L.E.; Pasterczyk, J.W.; Winterer, M.; Krause, T.R.

1994-04-26T23:59:59.000Z

371

Transition metal sulfide loaded catalyst  

DOE Patents (OSTI)

A zeolite based catalyst for activation and conversion of methane. A zeolite support includes a transition metal (Mo, Cr or W) sulfide disposed within the micropores of the zeolite. The catalyst allows activation and conversion of methane to C.sub.2 + hydrocarbons in a reducing atmosphere, thereby avoiding formation of oxides of carbon.

Maroni, Victor A. (Naperville, IL); Iton, Lennox E. (Downers Grove, IL); Pasterczyk, James W. (Westmont, IL); Winterer, Markus (Westmont, IL); Krause, Theodore R. (Lisle, IL)

1994-01-01T23:59:59.000Z

372

FCCU transition-probability model  

Science Conference Proceedings (OSTI)

The adequacy of the use of transition-probability matrices for modelling fluidised catalyst cracker unit emissions was investigated. A number of different-sized matrices that modelled the processes of attrition and agglomeration were used, and it was ... Keywords: Agglomeration, Attrition, Probability matrix

Robbie J. Dixon; Maki Matsuka; Roger D. Braddock; Josh M. Whitcombe; Igor E. Agranovski

2007-02-01T23:59:59.000Z

373

Examples of in transit visualization  

Science Conference Proceedings (OSTI)

One of the most pressing issues with petascale analysis is the transport of simulation results data to a meaningful analysis. Traditional workflow prescribes storing the simulation results to disk and later retrieving them for analysis and visualization. ... Keywords: in situ, in transit, parallel scientific visualization, staging

Kenneth Moreland; Ron Oldfield; Pat Marion; Sebastien Jourdain; Norbert Podhorszki; Venkatram Vishwanath; Nathan Fabian; Ciprian Docan; Manish Parashar; Mark Hereld; Michael E. Papka; Scott Klasky

2011-11-01T23:59:59.000Z

374

Correlations between signals of the liquid-gas phase transition in nuclei  

E-Print Network (OSTI)

Finite systems such as atomic nuclei present at phase transition specific features different from those observed at the thermodynamic limit. Several characteristic signals were found in samples of events resulting from heavy ion collisions at and above the Fermi energy. The concomitant observation of different signatures of a liquid-gas phase transition in nuclei on a given sample strongly supports the occurrence of this transition.

Marie-France Rivet; N. Le Neindre; J. P. Wieleczko; B. Borderie; R. Bougault; A. Chbihi; J. D. Frankland; M. Parlog; M. Pichon; B. Tamain; the INDRA; ALADIN Collaboration

2004-12-06T23:59:59.000Z

375

DOE Transition Documents - 2008 | Department of Energy  

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

Transition Documents - 2008 Transition Documents - 2008 DOE Transition Documents - 2008 Following are the DOE Transition Documents - 2008 Files in PDF format 2008_Transition_Corporate_Overview_Book_One.pdf 2008_Transition_Important_Issues_Book_Two.pdf 2008_Transition_Program_Details_Book_Three.pdf 2008_Transition_Budget_Details_Book_Four.pdf Authorize_Changes_Contractor_Work_Force_Restructuring_Policy.pdf Compilation Congressional Correspondence, January 1, 2008 throught November 14, 2008 COMPILATION OF MEMORANDA OF UNDERSTANDING AND INTERAGENCY AGREEMENTS DOE Transition Team President-Elect's 2008 Compliance_Policies_Guidance_Contractor__Force_Restructuring.pdf DOE_Contractor_Work_Force_Restructuring_Approval_Thresholds.pdf DOE_Selects_Savannah_River_Remediation__Liquid_Waste.pdf DOE STGWG Group

376

Non-CFC air conditioning for transit buses  

SciTech Connect

In the United Sates, more than 80% of transit city buses are air conditioned. Vapor compression refrigeration systems are standard for air conditioning buses and account for up to 25% of fuel consumption in the cooling season. Vapor compression devices use chlorofluorocarbons (CFCs), chemicals that contributes to Earths`s ozone depletion and to global warming. Currently, evaporative cooling is an economical alternative to CFC vapor compression refrigeration for air conditioning buses. It does not use CFCs but is restricted in use to arid climates. This limitation can be eliminated by dehumidifying the supply air using desiccants. We studied desiccant systems for cooling transit buses and found that the use of a desiccant-assisted evaporative cooling system is feasible and can deliver the required cooling. The weight and the size of the desiccant system though larger than vapor compression systems, can be easily accommodated within a bus. Fuel consumption for naming desiccant systems was about 70% less than CFC refrigeration system, resulting in payback periods of less than 2.5 years under most circumstances. This preliminary study indicated that desiccant systems combined with evaporative cooling is a CFC-free option to vapor compression refrigeration for air conditioning of transit buses. The concept is ready to be tested in a fun prototype scale in a commercial bus.

Pesaran, A.A.; Parent, Y.O.; Bharathan, D.

1992-11-01T23:59:59.000Z

377

Non-CFC air conditioning for transit buses  

Science Conference Proceedings (OSTI)

In the United Sates, more than 80% of transit city buses are air conditioned. Vapor compression refrigeration systems are standard for air conditioning buses and account for up to 25% of fuel consumption in the cooling season. Vapor compression devices use chlorofluorocarbons (CFCs), chemicals that contributes to Earths's ozone depletion and to global warming. Currently, evaporative cooling is an economical alternative to CFC vapor compression refrigeration for air conditioning buses. It does not use CFCs but is restricted in use to arid climates. This limitation can be eliminated by dehumidifying the supply air using desiccants. We studied desiccant systems for cooling transit buses and found that the use of a desiccant-assisted evaporative cooling system is feasible and can deliver the required cooling. The weight and the size of the desiccant system though larger than vapor compression systems, can be easily accommodated within a bus. Fuel consumption for naming desiccant systems was about 70% less than CFC refrigeration system, resulting in payback periods of less than 2.5 years under most circumstances. This preliminary study indicated that desiccant systems combined with evaporative cooling is a CFC-free option to vapor compression refrigeration for air conditioning of transit buses. The concept is ready to be tested in a fun prototype scale in a commercial bus.

Pesaran, A.A.; Parent, Y.O.; Bharathan, D.

1992-11-01T23:59:59.000Z

378

Transit Timing Variation Analysis of Ogle-Tr-132b with Seven New Transits  

E-Print Network (OSTI)

We report the results of the first transit timing variation analysis of the very hot Jupiter OGLE-TR-132b, using 10 transits collected over a seven-year period. Our analysis combines three previously published transit light ...

Adams, Elisabeth Rose

379

In-Use Performance Comparison of Hybrid Electric, CNG, and Diesel Buses at New York City Transit  

Science Conference Proceedings (OSTI)

The National Renewable Energy Laboratory (NREL) evaluated the performance of diesel, compressed natural gas (CNG), and hybrid electric (equipped with BAE Systems? HybriDrive propulsion system) transit buses at New York City Transit (NYCT). CNG, Gen I and Gen II hybrid electric propulsion systems were compared on fuel economy, maintenance and operating costs per mile, and reliability.

Barnitt, R. A.

2008-06-01T23:59:59.000Z

380

Rapid Sampling Tools - Nuclear Engineering Multimedia  

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

Nonproliferation and National Security Nonproliferation and National Security > Multimedia > Rapid Sampling Tools Director's Welcome Organization Achievements Highlights Fact Sheets, Brochures & Other Documents Multimedia Library About Nuclear Energy Nuclear Reactors Designed by Argonne Argonne's Nuclear Science and Technology Legacy Opportunities within NE Division Visit Argonne Work with Argonne Contact us For Employees Site Map Help Join us on Facebook Follow us on Twitter NE on Flickr Celebrating the 70th Anniversary of Chicago Pile 1 (CP-1) Argonne OutLoud on Nuclear Energy Argonne Energy Showcase 2012 Nonproliferation and National Security - Multimedia Bookmark and Share NPNS Multimedia, a collection of videos and audios featuring activities related to Nonproliferation and National Security

Note: This page contains sample records for the topic "rapid transit systems" 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

RAPID DAMAGE ASSESSMENT FROM HIGH RESOLUTION IMAGERY  

SciTech Connect

Disaster impact modeling and analysis uses huge volumes of image data that are produced immediately following a natural or an anthropogenic disaster event. Rapid damage assessment is the key to time critical decision support in disaster management to better utilize available response resources and accelerate recovery and relief efforts. But exploiting huge volumes of high resolution image data for identifying damaged areas with robust consistency in near real time is a challenging task. In this paper, we present an automated image analysis technique to identify areas of structural damage from high resolution optical satellite data using features based on image content.

Vijayaraj, Veeraraghavan [ORNL; Bright, Eddie A [ORNL; Bhaduri, Budhendra L [ORNL

2008-01-01T23:59:59.000Z

382

Interband transitions and interference effects in superconducting qubits  

Science Conference Proceedings (OSTI)

We investigate phase-sensitive interference effects in a periodically sin(2¿ f rf t)-driven, artificial two-state system connected to a microwave resonator at f LC ¿ 800 MHz. We observe two ... Keywords: 73.23.Hk, 85.25.Cp, 85.35.Gv, Aharonov---Anandan phase, Franck---Condon physics, Landau---Zener tunneling, Multiphoton transitions, Superconducting qubits

Antti Paila; Jani Tuorila; Mika Sillanpää; David Gunnarsson; Jayanta Sarkar; Yuriy Makhlin; Erkki Thuneberg; Pertti Hakonen

2009-06-01T23:59:59.000Z

383

What Controls the Transition from Shallow to Deep Convection?  

Science Conference Proceedings (OSTI)

In this study, a 2D cloud-system-resolving model (CSRM) is used to assess the control mechanism for the transition from shallow to deep convection in the diurnal cycle over land. By comparing with a 3D CSRM under conditions taken from the Large-...

Chien-Ming Wu; Bjorn Stevens; Akio Arakawa

2009-06-01T23:59:59.000Z

384

EVIDENCE FOR A SNOW LINE BEYOND THE TRANSITIONAL RADIUS IN THE TW Hya PROTOPLANETARY DISK  

SciTech Connect

We present an observational reconstruction of the radial water vapor content near the surface of the TW Hya transitional protoplanetary disk, and report the first localization of the snow line during this phase of disk evolution. The observations are comprised of Spitzer-IRS, Herschel-PACS, and Herschel-HIFI archival spectra. The abundance structure is retrieved by fitting a two-dimensional disk model to the available star+disk photometry and all observed H{sub 2}O lines, using a simple step-function parameterization of the water vapor content near the disk surface. We find that water vapor is abundant ({approx}10{sup -4} per H{sub 2}) in a narrow ring, located at the disk transition radius some 4 AU from the central star, but drops rapidly by several orders of magnitude beyond 4.2 AU over a scale length of no more than 0.5 AU. The inner disk (0.5-4 AU) is also dry, with an upper limit on the vertically averaged water abundance of 10{sup -6} per H{sub 2}. The water vapor peak occurs at a radius significantly more distant than that expected for a passive continuous disk around a 0.6 M{sub Sun} star, representing a volatile distribution in the TW Hya disk that bears strong similarities to that of the solar system. This is observational evidence for a snow line that moves outward with time in passive disks, with a dry inner disk that results either from gas giant formation or gas dissipation and a significant ice reservoir at large radii. The amount of water present near the snow line is sufficient to potentially catalyze the (further) formation of planetesimals and planets at distances beyond a few AU.

Zhang, K. [Division of Physics, Mathematics and Astronomy, MC 150-21, California Institute of Technology, Pasadena, CA 91125 (United States)] [Division of Physics, Mathematics and Astronomy, MC 150-21, California Institute of Technology, Pasadena, CA 91125 (United States); Pontoppidan, K. M. [Space Telescope Science Institute, Baltimore, MD 21218 (United States)] [Space Telescope Science Institute, Baltimore, MD 21218 (United States); Salyk, C. [National Optical Astronomy Observatory, 950 N. Cherry Ave., Tucson, AZ 85719 (United States)] [National Optical Astronomy Observatory, 950 N. Cherry Ave., Tucson, AZ 85719 (United States); Blake, G. A., E-mail: kzhang@caltech.edu [Division of Geological and Planetary Sciences, MC 150-21, California Institute of Technology, Pasadena, CA 91125 (United States)

2013-04-01T23:59:59.000Z

385

Negative heat capacities and first order phase transitions in nuclei  

E-Print Network (OSTI)

Anomalous negative heat capacities have been claimed as indicators of first order phase transitions in finite systems in general, and fornuclear systems in particular. A thermodynamic approach allowing for all Q value terms is used to evaluate heat capacities in finitevan der Waals fluids and finite lattice systems in the coexistence region. Fictitious large effects and negative heat capacities are observed in lattice systems when periodic boundary conditions are introduced. Small anomalous effects are predicted for small drops and for finite lattice systems. A straightforward application of the analysis to nuclei shows that negative heat capacities cannot be observed for A>60.

L. G. Moretto; J. B. Elliott; L. Phair; G. J. Wozniak

2002-08-13T23:59:59.000Z

386

Systems  

E-Print Network (OSTI)

Abstract Developing usable and robust mixed reality systems requires unique human–computer interaction techniques and customized hardware systems. The design of the hardware is directed by the requirements of the rich 3D interactions that can be performed using immersive mobile MR systems. Geometry modeling and capture, navigational annotations, visualizations, and training simulations are all enhanced using augmented computer graphics. We present the design guidelines that have led us through 10 years of evolving mobile outdoor MR hardware systems.

Benjamin Avery; Ross T. Smith; Wayne Piekarski; Bruce H. Thomas

2009-01-01T23:59:59.000Z

387

SunLine Transit Agency, Hydrogen Powered Transit Buses: Preliminary Evaluation Results  

DOE Green Energy (OSTI)

This paper provides preliminary results from an evaluation by DOE's National Renewable Energy Laboratory of hydrogen-powered transit buses at SunLine Transit Agency.

Chandler, K.; Eudy, L.

2007-02-01T23:59:59.000Z

388

Fabrication of highly textured lithium cobalt oxide films by rapid thermal annealing  

DOE Patents (OSTI)

Systems and methods are described for fabrication of highly textured lithium cobalt oxide films by rapid thermal annealing. A method of forming a lithium cobalt oxide film includes depositing a film of lithium cobalt oxide on a substrate; rapidly heating the film of lithium cobalt oxide to a target temperature; and maintaining the film of lithium cobalt oxide at the target temperature for a target annealing time of at most, approximately 60 minutes. The systems and methods provide advantages because they require less time to implement and are, therefore less costly than previous techniques.

Bates, John B. (Marietta, GA)

2002-01-01T23:59:59.000Z

389

Fabrication of highly textured lithium cobalt oxide films by rapid thermal annealing  

DOE Patents (OSTI)

Systems and methods are described for fabrication of highly textured lithium cobalt oxide films by rapid thermal annealing. A method of forming a lithium cobalt oxide film includes depositing a film of lithium cobalt oxide on a substrate; rapidly heating the film of lithium cobalt oxide to a target temperature; and maintaining the film of lithium cobalt oxide at the target temperature for a target annealing time of at most, approximately 60 minutes. The systems and methods provide advantages because they require less time to implement and are, therefore less costly than previous techniques.

Bates, John B. (Marietta, GA)

2003-04-29T23:59:59.000Z

390

A Search for Rapid Photometric Variability in Symbiotic Binaries  

E-Print Network (OSTI)

We report on our survey for rapid (time scale of minutes) photometric variability in symbiotic binaries. These binaries are becoming an increasingly important place to study accretion onto white dwarfs since they are candidate Type Ia supernovae progenitors. Unlike in most cataclysmic variables, the white dwarfs in symbiotics typically accrete from a wind, at rates greater than or equal to 10^{-9} solar masses per year. In order to elucidate the differences between symbiotics and other white dwarf accretors, as well as search for magnetism in symbiotic white dwarfs, we have studied 35 primarily northern symbiotic binaries via differential optical photometry. Our study is the most comprehensive to date of rapid variability in symbiotic binaries. We have found one magnetic accretor, Z And, previously reported by Sokoloski & Bildsten (1999). In four systems (EG And, BX Mon, CM Aql, and BF Cyg), some evidence for flickering at a low level (roughly 10 mmag) is seen for the first time. These detections are, however, marginal. For 25 systems, we place tight upper limits (order of mmag) on both aperiodic and periodic variability, highlighting a major difference between symbiotics and cataclysmic variables. The remaining five of the objects included in our sample (the 2 recurrent novae RS Oph and T CrB, plus CH Cyg, o Ceti, and MWC 560) had previous detections of large-amplitude optical flickering, and we present our extensive observations of these systems in a separate paper. We discuss the impact of our results on the ``standard'' picture of wind-fed accretion, and speculate on the possibility that in most symbiotics, light from quasi-steady nuclear burning on the surface of the white dwarf hides the fluctuating emission from accretion.

J. L. Sokoloski; Lars Bildsten; Wynn C. G. Ho

2001-04-02T23:59:59.000Z

391

Development and Performance of the PHOT (Portable High-Speed Occultation Telescope) Systems  

E-Print Network (OSTI)

The PHOT (Portable High-Speed Occultation Telescope) systems were developed for the specific purpose of observing stellar occultations by solar system objects. Stellar occultations have unique observing constraints: they may only be observable from certain parts of the globe; they often require a rapid observing cadence; and they require accurate timestamp information for each exposure. The PHOT systems consist of 14" telescopes, CCD cameras, camera mounting plates, GPS-based time standards, and data acquisition computers. The PHOT systems are similar in principle to the POETS systems (Portable Occultation, Eclipse and Transit Systems, described by Souza et al. 2006 and reported on by Gulbis et al. 2008), with the main differences being (a) different CCD/Cameras with slightly different specifications and (b) a stand-alone custom-built time standard used by PHOT, whereas POETS uses a commercial time-standard that is controlled from a computer. Since 2005, PHOT systems have been deployed on over two dozen occas...

Young, E F; Olkin, C B; Shoemaker, K; French, R G; Regester, J; Buie, M W

2011-01-01T23:59:59.000Z

392

Nuclear effects in atomic transitions  

E-Print Network (OSTI)

Atomic electrons are sensitive to the properties of the nucleus they are bound to, such as nuclear mass, charge distribution, spin, magnetization distribution, or even excited level scheme. These nuclear parameters are reflected in the atomic transition energies. A very precise determination of atomic spectra may thus reveal information about the nucleus, otherwise hardly accessible via nuclear physics experiments. This work reviews theoretical and experimental aspects of the nuclear effects that can be identified in atomic structure data. An introduction to the theory of isotope shifts and hyperfine splitting of atomic spectra is given, together with an overview of the typical experimental techniques used in high-precision atomic spectroscopy. More exotic effects at the borderline between atomic and nuclear physics, such as parity violation in atomic transitions due to the weak interaction, or nuclear polarization and nuclear excitation by electron capture, are also addressed.

Pálffy, Adriana

2011-01-01T23:59:59.000Z

393

E3: Success Story - Rapid-Line Inc. | Economy – Energy ...  

Science Conference Proceedings (OSTI)

... Lindquist and other Rapid-Line staff worked with the Green ... is true and not just a short-lived trend in ... Mark Lindquist, President, Rapid-Line Inc. ...

2013-11-13T23:59:59.000Z

394

Fault Evolution in Photovoltaic Array During Night-to-Day Transition  

E-Print Network (OSTI)

arcing in the DC- wiring of photovoltaic systems," in Telecommunications Energy Conference, 2009. INTELECFault Evolution in Photovoltaic Array During Night-to-Day Transition Ye Zhao, Brad Lehman Abstract-- This paper focuses on fault evolution in a photovoltaic array during night-to-day transition

Lehman, Brad

395

Evaluation of monsoon seasonality and the tropospheric biennial oscillation transitions in the CMIP models  

E-Print Network (OSTI)

Evaluation of monsoon seasonality and the tropospheric biennial oscillation transitions in the CMIP 26 October 2012. [1] Characteristics of the Indian and Australian summer monsoon systems preferred monsoon transitions between the two regions and from one year to another, that form parts

Ummenhofer, Caroline C.

396

Liquid-gas phase transition in hot nuclei: correlation between dynamical and thermodynamical signals  

E-Print Network (OSTI)

The dynamics and thermodynamics of phase transition in hot nuclei are studied through experimental results on multifragmentation of heavy systems (A$geq$200) formed in central heavy ion collisions. Different signals indicative of a phase transition studied in the INDRA collaboration are presented and their consistency is stressed.

M. F. Rivet; B. Borderie; R. Bougault; P. Désesquelles; E. Galichet; B. Guiot; N. Le Neindre; M. Parlog; G. Tabacaru; J. P. Wieleczko; the INDRA Collaboration

2005-01-12T23:59:59.000Z

397

Parallel Graph Transformation for Model Simulation applied to Timed Transition Petri Nets  

Science Conference Proceedings (OSTI)

This work discusses the use of parallel graph transformation systems for (multi-formalism) modeling and simulation and their implementation in the meta-modeling tool AToM^3. As an example, a simulator for Timed Transition Petri Nets (TTPN) is modeled ... Keywords: model simulation, parallel graph transformation, timed transition Petri nets

J. de Lara; C. Ermel; G. Taentzer; K. Ehrig

2004-12-01T23:59:59.000Z

398

Fast flux test facility, transition project plan  

SciTech Connect

The FFTF Transition Project Plan, Revision 1, provides changes and project baseline for the deactivation activities necessary to transition the FFTF to a radiologically and industrially safe shutdown condition.

Guttenberg, S.

1994-11-15T23:59:59.000Z

399

Wavenumber Transition in Baroclinically Unstable Flows  

Science Conference Proceedings (OSTI)

Using a two-layer model of unstable shear flow, the transition from one dominant baroclinic wave to another is studied. This transition can be smooth, involving an intermediate mixed wave state, or abrupt, thereby displaying hysteresis. It is ...

J. V. Mansbridge

1984-03-01T23:59:59.000Z

400

Functions and Requirements for the Transition Project  

SciTech Connect

This document describes the functional requirement baseline for the Transition of 100 K Area Facilities Project (Transition Project). This baseline information consists of top-level functions, requirements, concept description, interface description, issues, and enabling assumptions.

YANOCHKO, R.M.

2000-04-24T23:59:59.000Z

Note: This page contains sample records for the topic "rapid transit systems" 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

Ferromagnetic state and phase transitions  

E-Print Network (OSTI)

Evidence is summarized attesting that the standard exchange field theory of ferromagnetism by Heisenberg has not been successful. It is replaced by the crystal field and a simple assumption that spin orientation is inexorably associated with the orientation of its carrier. It follows at once that both ferromagnetic phase transitions and magnetization must involve a structural rearrangement. The mechanism of structural rearrangements in solids is nucleation and interface propagation. The new approach accounts coherently for ferromagnetic state and its manifestations.

Yuri Mnyukh

2011-06-20T23:59:59.000Z

402

The nuclear liquid gas phase transition and phase coexistence: A review  

E-Print Network (OSTI)

In this talk we will review the different signals of liquid gas phase transition in nuclei. From the theoretical side we will first discuss the foundations of the concept of equilibrium, phase transition and critical behaviors in infinite and finite systems. From the experimental point of view we will first recall the evidences for some strong modification of the behavior of hot nuclei. Then we will review quantitative detailed analysis aiming to evidence phase transition, to define its order and phase diagram. Finally, we will present a critical discussion of the present status of phase transitions in nuclei and we will draw some lines for future development of this field.

Ph. Chomaz

2004-10-18T23:59:59.000Z

403

RAPID DETERMINATION OF RADIOSTRONTIUM IN SEAWATER SAMPLES  

Science Conference Proceedings (OSTI)

A new method for the determination of radiostrontium in seawater samples has been developed at the Savannah River National Laboratory (SRNL) that allows rapid preconcentration and separation of strontium and yttrium isotopes in seawater samples for measurement. The new SRNL method employs a novel and effective pre-concentration step that utilizes a blend of calcium phosphate with iron hydroxide to collect both strontium and yttrium rapidly from the seawater matrix with enhanced chemical yields. The pre-concentration steps, in combination with rapid Sr Resin and DGA Resin cartridge separation options using vacuum box technology, allow seawater samples up to 10 liters to be analyzed. The total {sup 89}Sr + {sup 90}Sr activity may be determined by gas flow proportional counting and recounted after ingrowth of {sup 90}Y to differentiate {sup 89}Sr from {sup 90}Sr. Gas flow proportional counting provides a lower method detection limit than liquid scintillation or Cerenkov counting and allows simultaneous counting of samples. Simultaneous counting allows for longer count times and lower method detection limits without handling very large aliquots of seawater. Seawater samples up to 6 liters may be analyzed using Sr Resin for {sup 89}Sr and {sup 90}Sr with a Minimum Detectable Activity (MDA) of 1-10 mBq/L, depending on count times. Seawater samples up to 10 liters may be analyzed for {sup 90}Sr using a DGA Resin method via collection and purification of {sup 90}Y only. If {sup 89}Sr and other fission products are present, then {sup 91}Y (beta energy 1.55 MeV, 58.5 day half-life) is also likely to be present. {sup 91}Y interferes with attempts to collect {sup 90}Y directly from the seawater sample without initial purification of Sr isotopes first and {sup 90}Y ingrowth. The DGA Resin option can be used to determine {sup 90}Sr, and if {sup 91}Y is also present, an ingrowth option with using DGA Resin again to collect {sup 90}Y can be performed. An MDA for {sup 90}Sr of <1 mBq/L for an 8 hour count may be obtained using 10 liter seawater sample aliquots.

Maxwell, S.

2013-01-16T23:59:59.000Z

404

Universality of the Anderson transition with the quasiperiodic kicked rotor  

E-Print Network (OSTI)

We report a numerical analysis of the Anderson transition in a quantum-chaotic system, the quasiperiodic kicked rotor with three incommensurate frequencies. It is shown that this dynamical system exhibits the same critical phenomena as the truly random 3D-Anderson model. By taking proper account of systematic corrections to one-parameter scaling, the universality of the critical exponent is demonstrated. Our result $\

G. Lemarié; B. Grémaud; D. Delande

2009-04-15T23:59:59.000Z

405

SLIDER - Rapid Optical Deflector for Recording Ultrafast Signals  

home \\ technologies \\ slider. Technologies: Ready-to-Sign Licenses: Software: Patents: SLIDER - Rapid Optical Deflector for Recording Ultrafast Signals. Contact.

406

Rapid reconnaissance of geothermal prospects using shallow temperature...  

Open Energy Info (EERE)

reconnaissance of geothermal prospects using shallow temperature surveys. Second technical report Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Report: Rapid...

407

Wavelengths, Transition Probabilities, and Energy Levels for ...  

Science Conference Proceedings (OSTI)

Page 1. Wavelengths, Transition Probabilities, and Energy Levels for the Spectra of Sodium „Na I–Na XI… JE Sansonettia ...

2012-07-18T23:59:59.000Z

408

More is the Same; Phase Transitions and Mean Field Theories  

E-Print Network (OSTI)

This paper looks at the early theory of phase transitions. It considers a group of related concepts derived from condensed matter and statistical physics. The key technical ideas here go under the names of "singularity", "order parameter", "mean field theory", and "variational method". In a less technical vein, the question here is how can matter, ordinary matter, support a diversity of forms. We see this diversity each time we observe ice in contact with liquid water or see water vapor, "steam", come up from a pot of heated water. Different phases can be qualitatively different in that walking on ice is well within human capacity, but walking on liquid water is proverbially forbidden to ordinary humans. These differences have been apparent to humankind for millennia, but only brought within the domain of scientific understanding since the 1880s. A phase transition is a change from one behavior to another. A first order phase transition involves a discontinuous jump in a some statistical variable of the system. The discontinuous property is called the order parameter. Each phase transitions has its own order parameter that range over a tremendous variety of physical properties. These properties include the density of a liquid gas transition, the magnetization in a ferromagnet, the size of a connected cluster in a percolation transition, and a condensate wave function in a superfluid or superconductor. A continuous transition occurs when that jump approaches zero. This note is about statistical mechanics and the development of mean field theory as a basis for a partial understanding of this phenomenon.

Leo P. Kadanoff

2009-06-03T23:59:59.000Z

409

A Rapid Loss Index for Tropical Cyclone Disasters in China  

Science Conference Proceedings (OSTI)

Disaster emergency response needs rapid estimation on disaster loss. In China it is of great importance to develop a loss index for rapidly assessing tropical cyclone (TC) disaster loss. In this paper, a new composite loss index for TC landing on China ... Keywords: Tropical Cyclone, Disaster, Loss Index, Rapid Loss Assessment

Ying Li; Weihua Fang

2012-06-01T23:59:59.000Z

410

Chemical Equilibrium in Heavy Ion Collisions: Rapidity Dependence  

E-Print Network (OSTI)

Particle yields in heavy ion collisions show an overwhelming evidence for chemical or relative chemical equilibrium at all beam energies. The rapidity dependence of the thermal parameters $T$ and $\\mu_B$ can now be determined over a wide range of rapidities and show a systematic behavior towards an increase in $\\mu_B$ away from mid-rapidity.

F. Becattini; J. Cleymans

2007-01-04T23:59:59.000Z

411

Rapid Gas Hydrate Formation Process Opportunity  

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

Gas Hydrate Formation Process Gas Hydrate Formation Process Opportunity The Department of Energy's National Energy Technology Laboratory (NETL) is seeking collaborative research and licensing partners interested in implementing United States Non-provisional Patent Application entitled "Rapid Gas Hydrate Formation Process." Disclosed in this application is a method and device for producing gas hydrates from a two-phase mixture of water and a hydrate forming gas such as methane (CH 4 ) or carbon dioxide (CO 2 ). The two-phase mixture is created in a mixing zone, which may be contained within the body of the spray nozzle. The two-phase mixture is subsequently sprayed into a reaction vessel, under pressure and temperature conditions suitable for gas hydrate formation. The reaction

412

World NGL markets continue rapid expansion  

Science Conference Proceedings (OSTI)

The international LPG industry has expanded rapidly during the 1990s and undergone significant changes. LPG consumption has expanded at nearly twice the rate of world petroleum demand. In particular, LPG use in residential and commercial markets has more than doubled in many developing countries. Markets for LPG and other petroleum products have been opened in many countries, accelerating demand growth and creating investment opportunities in all downstream segments. This has led to an overall strengthening of global LPG pricing and the development of many new export gas-processing projects. The paper discusses world LPG demand in residential and commercial markets and in petrochemicals, world LPG supply, regional increases, international trade, the US situation in natural gas, NGL supply, and NGL demand.

Otto, K.; Gist, R.; Whitley, C. [Purvin and Gertz, Houston, TX (United States); Haun, R. [Purvin and Gertz, Dallas, TX (United States)

1998-06-08T23:59:59.000Z

413

RTDS: A continuous, rapid, thermal synthesis mode  

SciTech Connect

The Rapid Thermal Decomposition of precursors in Solution (RTDS) Process is a flow-through hydrothermal powder synthesis method capable of producing nanophase oxide and oxyhydroxide catalysts and catalyst precursors. The RTDS technique utilizes a brief exposure of dissolved precursors to high pressure/high temperature aqueous conditions to initiate crystallite nucleation. The resulting nanocrystalline suspension is removed from the hydrothermal environment through a pressure let-down device before significant crystallite growth can occur. The RTDS process is discussed as a method to produce nanocrystalline iron oxide and oxyhydroxide powders that exhibit high activity as carbon-carbon bond cleavage catalyst precursors. Nanocrystalline TiO{sub 2} and ZrO{sub 2} powders having prospective catalytic applications are also produced by the RTDS process.

Matson, D.W.; Linehan, J.C.; Darab, J.D.; Buehler, M.F.; Phelps, M.R.; Neuenschwander, G.G.

1995-04-01T23:59:59.000Z

414

An ingress and a complete transit of HD 80606 b  

E-Print Network (OSTI)

We have used four telescopes at different longitudes to obtain near-continuous lightcurve coverage of the star HD 80606 as it was transited by its \\sim 4-MJup planet. The observations were performed during the predicted transit windows around the 25th of October 2008 and the 14th of February 2009. Our data set is unique in that it simultaneously constrains the duration of the transit and the planet's period. Our Markov-Chain Monte Carlo analysis of the light curves, combined with constraints from radial-velocity data, yields system parameters consistent with previously reported values. We find a planet-to-star radius ratio marginally smaller than previously reported, corresponding to a planet radius of Rp = 0.921 \\pm 0.036RJup .

Hidas, M G; Street, R A; Ramaprakash, A N; Mislis, D; Schmitt, J H M M; Steele, I; Barros, S C C; Pollacco, D; Ayiomamitis, A; Antoniadis, J; Nitsos, A; Seiradakis, J H; Urakawa, S

2010-01-01T23:59:59.000Z

415

Development and Tropical Transition of an Alpine Lee Cyclone. Part II: Orographic Influence on the Development Pathway  

Science Conference Proceedings (OSTI)

The development and subsequent tropical transition of a subsynoptic-scale cyclone over the Gulf of Genoa (GoG) on 15 November 2007 led to the rapid onset of tropical storm-force winds near the islands of Corsica and Sardinia. This study evaluates ...

Ron McTaggart-Cowan; Thomas J. Galarneau Jr.; Lance F. Bosart; Jason A. Milbrandt

2010-06-01T23:59:59.000Z

416

Upper-Tropospheric Forcing on Late July Monsoon Transition in East Asia and the Western North Pacific  

Science Conference Proceedings (OSTI)

By investigating the large-scale circulation in the upper troposphere, it is demonstrated that the rapid late July summer monsoon transition in the East Asia and western North Pacific (EA-WNP) is associated with a weakened westerly at the exit of ...

Chi-Hua Wu; Ming-Dah Chou

2012-06-01T23:59:59.000Z

417

Test plan for demonstration of Rapid Transuranic Monitoring Laboratory  

Science Conference Proceedings (OSTI)

This plan describes tests to demonstrate the capability of the Rapid Transuranic Monitoring Laboratory (RTML) to monitor airborne alpha-emitting radionuclides and analyze soil, smear, and filter samples for alpha- and gamma-emitting radionuclides under field conditions. The RTML will be tested during June 1993 at a site adjacent to the Cold Test Pit at the Radioactive Waste Management Complex at the Idaho National Engineering Laboratory. Measurement systems installed in the RTML that will be demonstrated include two large-area ionization chamber alpha spectrometers, an x-ray/gamma-ray spectrometer, and four alpha continuous air monitors. Test objectives, requirements for data quality, experimental apparatus and procedures, and safety and logistics issues are described.

McIsaac, C.V.; Sill, C.W.; Gehrke, R.J.; Killian, E.W.; Watts, K.D.

1993-06-01T23:59:59.000Z

418

Rapid application development using the Tcl/Tk language  

Science Conference Proceedings (OSTI)

During the last year, high level applications at CEBAF were written using the Tcl/Tk scripting language. This language is rapidly gaining in popularity, in part due to ease of constructing programs with X11 graphical user interfaces, and in part to ease of adding compiled user code for specialized purposes. Extensions to the language provide object oriented programming, which was used to develop a hierarchy of classes relevant for high level accelerator control. We describe basic language features, some 3rd party add-on packages, and local additions to the toolbox. Next we describe features of the accelerator object hierarchy, and finally describe applications written using this toolbox such as the ModelServer prototype, Slow Orbit and Energy Lock, the Linac Energy Management System, and other applications.

van Zeijts, J.

1995-12-31T23:59:59.000Z

419

Nuclear transitions induced by synchrotron x-rays.  

DOE Green Energy (OSTI)

We discuss two rare but interesting processes by which synchrotron x-rays with energies up to about 100 keV may be used to induce nuclear transitions. In the NEET (Nuclear Excitation by Electronic Transition) process, an intense x-ray beam is employed to make vacancies, e.g. K-holes, in the atoms of a specific nuclear isotope. When a vacancy is filled by an electronic transition from a higher atomic level, there is some probability that instead of the usual x-ray or Auger emission, the nucleus of the atom itself will be excited. This is then followed by a nuclear decay exhibiting characteristic gamma-rays or other types of radiation, with time delays typical of the nuclear states involved. The probability for NEET increases when the energies of the atomic and the nuclear transitions become close. We address some theoretical aspects of the process and describe experimental efforts to observe it in {sup 189}Os and {sup 197}Au. The second process to be discussed is the possibility of ''triggering'' the decay of a nuclear isomer by irradiation with an x-ray beam. We focus on the case of the 31-year, 2.4-MeV, 16+ isomer of {sup 178}Hf. There has been speculation that if one could isolate gram quantities, say, of this isomer and then have the capability to accelerate its decay in a controlled way, one would have a powerful triggerable source of enormous energy. This could be used to generate explosions, for rapid irradiations, or for more general energy-storage applications, depending on the rate of energy release. We describe attempts to observe this process.

Gemmell, D. S.

2002-06-05T23:59:59.000Z

420

Microsoft Word - SEC J_Appendix C - Contractor's Transition Plan...  

National Nuclear Security Administration (NNSA)

schedule, including milestones and measurable commitments Provide a transition cost estimate for transition activities including costs associated with the transition plan...

Note: This page contains sample records for the topic "rapid transit systems" 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

Review: The Transition Handbook: From Oil Dependency to Local Resilience  

E-Print Network (OSTI)

Review: The Transition Handbook: From Oil Dependency toRob. The Transition Handbook: From Oil Dependency to Localovercome in The Transition Handbook. His essential goal is

Alkhoury, Alex

2010-01-01T23:59:59.000Z

422

2008_Transition_Corporate_Overview_Book_One.pdf | Department...  

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

Administration Other Agencies You are here Home 2008TransitionCorporateOverviewBookOne.pdf 2008TransitionCorporateOverviewBookOne.pdf 2008TransitionCorporateOverv...

423

2008_Transition_Important_Issues_Book_Two.pdf | Department of...  

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

Administration Other Agencies You are here Home 2008TransitionImportantIssuesBookTwo.pdf 2008TransitionImportantIssuesBookTwo.pdf 2008TransitionImportantIssues...

424

2008_Transition_Program_Details_Book_Three.pdf | Department of...  

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

Administration Other Agencies You are here Home 2008TransitionProgramDetailsBookThree.pdf 2008TransitionProgramDetailsBookThree.pdf 2008TransitionProgramDetail...

425

Process for Transition of Responsibilities | Department of Energy  

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

Process for Transition of Responsibilities Process for Transition of Responsibilities Process for Transition of Responsibilities (Waste Management Conference 2006) Process for...

426

Tool and Calculator (Transit, Fuel) | Open Energy Information  

Open Energy Info (EERE)

This webside provide Tools & Calculators like Public Transit In Your Community, Fuel Saving Calculator, Carbon saving calculator, Transit Savings Report and transit benefits...

427

Dynamic Phase Transitions in Coupled Motor Proteins  

E-Print Network (OSTI)

The effect of interactions on dynamics of coupled motor proteins is investigated theoretically. A simple stochastic discrete model, that allows to calculate explicitly the dynamic properties of the system, is developed. It is shown that there are two dynamic regimes, depending on the interaction between the particles. For strong interactions the motor proteins move as one tight cluster, while for weak interactions there is no correlation in the motion of the proteins, and the particle separation increases steadily with time. The boundary between two dynamic phases is specified by a critical interaction that has a non-zero value only for the coupling of the asymmetric motor proteins, and it depends on the temperature and the transitions rates. At the critical interaction there is a change in a slope for the mean velocities and a discontinuity in the dispersions of the motor proteins as a function of the interaction energy.

Evgeny B. Stukalin; Anatoly B. Kolomeisky

2005-09-16T23:59:59.000Z

428

Regimes in Simple Systems  

Science Conference Proceedings (OSTI)

Dynamical systems possessing regimes are identified with those where the state space possesses two or more regions such that transitions of the state from either region to the other are rare. Systems with regimes are compared to those where ...

Edward N. Lorenz

2006-08-01T23:59:59.000Z

429

A simple monatomic ideal glass former: the glass transition by a first-order phase transition above the melting point  

E-Print Network (OSTI)

A liquid can form under cooling a glassy state either as a result of a continuous slowing down or by a first order polyamorphous phase transition. The second scenario has so far always been observed below the melting point where it interfered with crystalline nucleation. We report the first observation of the liquid-glass transition by a first order phase transition above the melting point. The observation was made in a molecular dynamics simulation of a one-component system with a model metallic pair potential. This is also the first observation of a simple monatomic ideal glass former -- a liquid that avoids crystallization at any cooling rate. Besides its conceptual importance, this result indicates a possibility of existence of metallic ideal glass formers.

Måns Elenius; Tomas Oppelstrup; Mikhail Dzugutov

2010-04-15T23:59:59.000Z

430

Precise Photometry and Spectroscopy of Transits  

E-Print Network (OSTI)

A planetary transit produces both a photometric signal and a spectroscopic signal. Precise observations of the transit light curve reveal the planetary radius and allow a search for timing anomalies caused by satellites or additional planets. Precise measurements of the stellar Doppler shift throughout a transit (the Rossiter-McLaughlin effect) place a lower bound on the stellar obliquity, which may be indicative of the planet's migration history. I review recent results of the Transit Light Curve project, and of a parallel effort to measure the Rossiter effect for many of the known transiting planets.

Joshua N. Winn

2007-10-04T23:59:59.000Z

431

Rapid disappearance of shell effects in the fission of transfermium nuclei  

Science Conference Proceedings (OSTI)

In the last fifteen years we have learned that nuclear shells have a very broad and pervasive impact on the fission process. In the first few decades after the discovery of nuclear fission, the nucleus was treated as a drop of liquid with smoothly varying attractive and repulsive forces. Although this model still forms the underlying basis for fission, we also observe large effects from the superimposition of shell corrections derived from coupling the quantum states of individual nucleons. The consequences of single-particle coupling on the fission process can be striking and may often overshadow that originating from the intrinsic liquid-drop component. Here, we point out several major features attributable to shell effects in the spontaneous fission (SF) of the lighter actinides, the sudden transition to symmetric fission in the fermium isotopes, and finally new experimental information indicating another transition in the SF of transfermium nuclides due to the disappearance of shell perturbations. In each transition, the abruptness is surprising, and for the moment, such rapid changes in fission behavior lack a theoretical rationale.

Hulet, E.K.

1983-01-01T23:59:59.000Z

432

High-Pressure Thermodynamic Properties of f-electron Metals, Transition Metal Oxides, and Half-Metallic Magnets  

SciTech Connect

This project involves research into the thermodynamic properties of f-electron metals, transition metal oxides, and half-metallic magnets at high pressure. These materials are ones in which the changing importance of electron-electron interactions as the distance between atoms is varied can tune the system through phase transitions from localized to delocalized electrons, from screened to unscreened magnetic moments, and from normal metal to one in which only a single spin specie can conduct. Three main thrusts are being pursued: (1) Mott transitions in transition metal oxides, (2) magnetism in half-metallic compounds, and (3) large volume-collapse transitions in f-band metals.

Scalettar, Richard T.; Pickett, Warren E.

2004-07-01T23:59:59.000Z

433

High-Pressure Thermodynamic Properties of f-electron Metals, Transition Metal Oxides, and Half-Metallic Magnets  

SciTech Connect

This project involves research into the thermodynamic properties of f-electron metals, transition metal oxides, and half-metallic magnets at high pressure. These materials are ones in which the changing importance of electron-electron interactions as the distance between atoms is varied can tune the system through phase transitions from localized to delocalized electrons, from screened to unscreened magnetic moments, and from normal metal to one in which only a single spin specie can conduct. Three main thrusts are being pursued: (i) Mott transitions in transition metal oxides, (ii) magnetism in half-metallic compounds, and (iii) large volume-collapse transitions in f-band metals.

Richard T. Scalettar; Warren E. Pickett

2005-08-02T23:59:59.000Z

434

Rapid Rotation, Active Nests of Convection and Global-scale Flows in Solar-like Stars  

E-Print Network (OSTI)

In the solar convection zone, rotation couples with intensely turbulent convection to build global-scale flows of differential rotation and meridional circulation. Our sun must have rotated more rapidly in its past, as is suggested by observations of many rapidly rotating young solar-type stars. Here we explore the effects of more rapid rotation on the patterns of convection in such stars and the global-scale flows which are self-consistently established. The convection in these systems is richly time dependent and in our most rapidly rotating suns a striking pattern of spatially localized convection emerges. Convection near the equator in these systems is dominated by one or two patches of locally enhanced convection, with nearly quiescent streaming flow in between at the highest rotation rates. These active nests of convection maintain a strong differential rotation despite their small size. The structure of differential rotation is similar in all of our more rapidly rotating suns, with fast equators and sl...

Brown, Benjamin P; Brun, Allan Sacha; Miesch, Mark S; Toomre, Juri

2008-01-01T23:59:59.000Z

435

EMasticWindows: improvedSpatial Layoutand Rapid MuRipmeWindow Operations  

E-Print Network (OSTI)

Symposium of the Washington, DC Chapter of the ACM, (1991), pp. t21-131. 16. Malone, T. W., How do peopleEMasticWindows: improvedSpatial Layoutand Rapid MuRipmeWindow Operations Eser Kandogan Department)405-2680 ben@cs.umd.edu ABSTRACT Most windowing systems follow the independent overlap- ping windows approach

Shneiderman, Ben

436

Transitioning to 12-hour shifts  

Science Conference Proceedings (OSTI)

In 1989, Yankee Rowe nuclear power station successfully implemented a 12-hour shift schedule for all shiftworkers (control room personnel, auxiliary operators, and radiation protection shift technicians) with many positive effects on morale, motivation, and performance. The transition from an 8-hour to a 12-hour shift schedule was initiated, organized, and promoted by the shiftworkers themselves after they had identified numerous inadequacies in the 8-hour shift schedule. Preliminary and final implementation required several steps: (a) a survey of needs, (b) research of potential schedules, (c) cost/benefit analysis, (d) resolution of any union contract conflicts, (e) management approval, and (f) trial shift schedule periods.

Suter, P.S.; Cervassi, S.M.

1993-03-01T23:59:59.000Z

437

Shim for sealing transition pieces  

DOE Patents (OSTI)

According to one aspect of the invention, a shim for sealing two adjacent turbine transition pieces is disclosed. The shim includes a circumferential member that includes a first lateral flange and a second lateral flange. Further, the first and second lateral flanges each comprise a tab configured to mate to a first surface plane and the first and second lateral flanges are configured to mate to a second surface plane, wherein the first and second surface planes are substantially parallel. In addition, the shim includes a first flange extending substantially perpendicular from the circumferential member.

Lacy, Benjamin Paul (Greer, SC); Demiroglu, Mehmet (Troy, NY); Sarawate, Neelesh Nandkumar (Niskayuna, NY)

2012-07-24T23:59:59.000Z

438

A verification framework for hybrid systems  

E-Print Network (OSTI)

Combining; discrete state transitions with differential equations, Hybrid system models provide an expressive formalism for describing software systems that interact with a physical environment. Automatically checking ...

Mitra, Sayan

2007-01-01T23:59:59.000Z

439

The Mass Transit Needs Of A Non-driving Disabled Population  

E-Print Network (OSTI)

services available to disabled people The existing publicdecision support system for disabled travelers. It would beTransit Use by Non-Driving Disabled Persons: The Case of the

Golledge, Reginald G.; Costanzo, C. Michael; Marston, James R.

1996-01-01T23:59:59.000Z

440

Simulation of Asymmetric ENSO Transition in WCRP CMIP3 Multimodel Experiments  

Science Conference Proceedings (OSTI)

Based on the Coupled Model Intercomparison Project phase 3 (CMIP3) multimodel dataset, the relationships between the climatological states and transition processes of simulated ENSO are investigated. The air–sea coupled system of the observed ...

Masamichi Ohba; Daisuke Nohara; Hiroaki Ueda

2010-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "rapid transit systems" 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

CO2 Capture from Flue Gas by Phase Transitional Absorption  

Science Conference Proceedings (OSTI)

A novel absorption process called Phase Transitional Absorption was invented. What is the Phase Transitional Absorption? Phase Transitional Absorption is a two or multi phase absorption system, CO{sub 2} rich phase and CO{sub 2} lean phase. During Absorption, CO{sub 2} is accumulated in CO{sub 2} rich phase. After separating the two phases, CO{sub 2} rich phase is forward to regeneration. After regeneration, the regenerated CO{sub 2} rich phase combines CO{sub 2} lean phase to form absorbent again to complete the cycle. The advantage for Phase Transitional Absorption is obvious, significantly saving on regeneration energy. Because CO{sub 2} lean phase was separated before regeneration, only CO{sub 2} rich phase was forward to regeneration. The absorption system we developed has the features of high absorption rate, high loading and working capacity, low corrosion, low regeneration heat, no toxic to environment, etc. The process evaluation shows that our process is able to save 80% energy cost by comparing with MEA process.

Liang Hu

2009-06-30T23:59:59.000Z

442

Secondary fuel delivery system  

SciTech Connect

A secondary fuel delivery system for delivering a secondary stream of fuel and/or diluent to a secondary combustion zone located in the transition piece of a combustion engine, downstream of the engine primary combustion region is disclosed. The system includes a manifold formed integral to, and surrounding a portion of, the transition piece, a manifold inlet port, and a collection of injection nozzles. A flowsleeve augments fuel/diluent flow velocity and improves the system cooling effectiveness. Passive cooling elements, including effusion cooling holes located within the transition boundary and thermal-stress-dissipating gaps that resist thermal stress accumulation, provide supplemental heat dissipation in key areas. The system delivers a secondary fuel/diluent mixture to a secondary combustion zone located along the length of the transition piece, while reducing the impact of elevated vibration levels found within the transition piece and avoiding the heat dissipation difficulties often associated with traditional vibration reduction methods.

Parker, David M. (Oviedo, FL); Cai, Weidong (Oviedo, FL); Garan, Daniel W. (Orlando, FL); Harris, Arthur J. (Orlando, FL)

2010-02-23T23:59:59.000Z

443

In-Transit Natural Gas Form | Department of Energy  

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

In-Transit Natural Gas Form In-Transit Natural Gas Form Excel Version of In-Transit Natural Gas Form.xlsx PDF Version of In-Transit Natural Gas Form More Documents & Publications...

444

Macro-System Model Overview  

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

Such a macro-system model is critical to assessing the transition from the existing energy infrastructure to one including hydrogen. Individual models spanning a wide range of...

445

MEASUREMENT OF THE SPIN-ORBIT MISALIGNMENT OF KOI-13.01 FROM ITS GRAVITY-DARKENED KEPLER TRANSIT LIGHT CURVE  

Science Conference Proceedings (OSTI)

We model the asymmetry of the KOI-13.01 transit lightcurve assuming a gravity-darkened rapidly rotating host star in order to constrain the system's spin-orbit alignment and transit parameters. We find that our model can reproduce the Kepler lightcurve for KOI-13.01 with a sky-projected alignment of {lambda} = 23 Degree-Sign {+-} 4 Degree-Sign and with the star's north pole tilted away from the observer by 48 Degree-Sign {+-} 4 Degree-Sign (assuming M{sub *} = 2.05 M{sub Sun }). With both these determinations, we calculate that the net misalignment between this planet's orbit normal and its star's rotational pole is 56 Degree-Sign {+-} 4 Degree-Sign . Degeneracies in our geometric interpretation also allow a retrograde spin-orbit angle of 124 Degree-Sign {+-} 4 Degree-Sign . This is the first spin-orbit measurement to come from gravity darkening and is one of only a few measurements of the full (not just the sky-projected) spin-orbit misalignment of an extrasolar planet. We also measure accurate transit parameters incorporating stellar oblateness and gravity darkening: R{sub *} 1.756 {+-} 0.014 R{sub Sun }, R{sub p} = 1.445 {+-} 0.016 R{sub Jup}, and i = 85.{sup 0}9 {+-} 0.{sup 0}4. The new lower planetary radius falls within the planetary mass regime for plausible interior models for the transiting body. A simple initial calculation shows that KOI-13.01's circular orbit is apparently inconsistent with the Kozai mechanism having driven its spin-orbit misalignment; planet-planet scattering and stellar spin migration remain viable mechanisms. Future Kepler data will improve the precision of the KOI-13.01 transit lightcurve, allowing more precise determination of transit parameters and the opportunity to use the Photometric Rossiter-McLaughlin effect to resolve the prograde/retrograde orbit determination degeneracy.

Barnes, Jason W. [Department of Physics, University of Idaho, Moscow, ID 83844-0903 (United States); Linscott, Ethan [Department of Physics, Oklahoma Baptist University, Shawnee, OK 74804 (United States); Shporer, Avi, E-mail: jwbarnes@uidaho.edu [Department of Physics, University of California, Santa Barbara, CA 93106 (United States)

2011-11-01T23:59:59.000Z

446

Ensemble Statistics and Error Covariance of a Rapidly Intensifying Hurricane  

E-Print Network (OSTI)

This thesis presents an investigation of ensemble Gaussianity, the effect of non- Gaussianity on covariance structures, storm-centered data assimilation techniques, and the relationship between commonly used data assimilation variables and the underlying dynamics for the case of Hurricane Humberto. Using an Ensemble Kalman Filter (EnKF), a comparison of data assimilation results in Storm-centered and Eulerian coordinate systems is made. In addition, the extent of the non-Gaussianity of the model ensemble is investigated and quantified. The effect of this non-Gaussianity on covariance structures, which play an integral role in the EnKF data assimilation scheme, is then explored. Finally, the correlation structures calculated from a Weather Research Forecast (WRF) ensemble forecast of several state variables are investigated in order to better understand the dynamics of this rapidly intensifying cyclone. Hurricane Humberto rapidly intensified in the northwestern Gulf of Mexico from a tropical disturbance to a strong category one hurricane with 90 mph winds in 24 hours. Numerical models did not capture the intensification of Humberto well. This could be due in large part to initial condition error, which can be addressed by data assimilation schemes. Because the EnKF scheme is a linear theory developed on the assumption of the normality of the ensemble distribution, non-Gaussianity in the ensemble distribution used could affect the EnKF update. It is shown that multiple state variables do indeed show significant non-Gaussianity through an inspection of statistical moments. In addition, storm-centered data assimilation schemes present an alternative to traditional Eulerian schemes by emphasizing the centrality of the cyclone to the assimilation window. This allows for an update that is most effective in the vicinity of the storm center, which is of most concern in mesoscale events such as Humberto. Finally, the effect of non-Gaussian distributions on covariance structures is examined through data transformations of normal distributions. Various standard transformations of two Gaussian distributions are made. Skewness, kurtosis, and correlation between the two distributions are taken before and after the transformations. It can be seen that there is a relationship between a change in skewness and kurtosis and the correlation between the distributions. These effects are then taken into consideration as the dynamics contributing to the rapid intensification of Humberto are explored through correlation structures.

Rigney, Matthew C.

2009-05-01T23:59:59.000Z

447

User's Manual for Transit ITS Simulator (TRAN-ITS)  

E-Print Network (OSTI)

AND HIGHWAYS USERS MANUAL FOR TRANSIT ITS SIMULATOR (TRAN-OF CALIFORNIA, BERKELEY User’s Manual for Transit ITS

Dessouky, Maged; Zhang, Lei; Singh, Ajay; Hall, Randolph

1999-01-01T23:59:59.000Z

448

Eady Edge Waves and Rapid Development  

Science Conference Proceedings (OSTI)

Perturbations of the classical Eady model are treated in terms of the system's two intrinsic baroclinic edge waves. This provides a simple quantitative example of the wave coupling interpretation of quasigeostrophic instability and a compact ...

H. C. Davies; C. H. Bishop

1994-07-01T23:59:59.000Z

449

Properties of molecular beam epitaxy grown Eu{sub x}(transition metal){sub y} films (transition metals: Mn, Cr)  

Science Conference Proceedings (OSTI)

The electronic and crystallographic structures, as well as the magnetic properties, of Eu{sub x}(transition metal){sub y} (transition metals: Mn, Cr) thin films grown by molecular beam epitaxy were studied. Relative changes of the Eu/Mn and Eu/Cr ratios derived from the XPS lines, as well as x-ray reflectivity, indicate mixing of the Eu/Mn and Eu/Cr layers. Valency transitions from Eu{sup 2+} to Eu{sup 3+} were observed in both systems for most studied stoichiometries. A transition to a magnetically ordered phase was observed at 15 K, 40 K, and 62 K for selected films in the Eu-Mn system, and at 50 K for the film with a Eu/Cr ratio of 0.5.

Balin, K. [A. Chelkowski Institute of Physics, University of Silesia, Katowice, 40-007 (Poland); Center for Magnetism and Magnetic Nanostructures, University of Colorado at Colorado Springs, Colorado Springs, Colorado 80918 (United States); Nowak, A. [A. Chelkowski Institute of Physics, University of Silesia, Katowice, 40-007 (Poland); Laboratoire de Physique de l'Etat Condense, University du Maine, Le Mans Cedex, 72085 (France); Gibaud, A. [Laboratoire de Physique de l'Etat Condense, University du Maine, Le Mans Cedex, 72085 (France); Szade, J. [A. Chelkowski Institute of Physics, University of Silesia, Katowice, 40-007 (Poland); Celinski, Z. [Center for Magnetism and Magnetic Nanostructures, University of Colorado at Colorado Springs, Colorado Springs, Colorado 80918 (United States)

2011-04-01T23:59:59.000Z

450

Thermodynamic properties of pulverized coal during rapid heating devolatilization processes  

SciTech Connect

The thermodynamic properties of coal under conditions of rapid heating have been determined using a combination of UTRC facilities including a proprietary rapid heating rate differential thermal analyzer (RHR-DTA), a microbomb calorimeter (MBC), an entrained flow reactor (EFR), an elemental analyzer (EA), and a FT-IR. The total heat of devolatilization, was measured for a HVA bituminous coal (PSOC 1451D, Pittsburgh No. 8) and a LV bituminous coal (PSOC 1516D, Lower Kittaning). For the HVA coal, the contributions of each of the following components to the overall heat of devolatilization were measured: the specific heat of coal/char during devolatilization, the heat of thermal decomposition of the coal, the specific heat capacity of tars, and the heat of vaporization of tars. Morphological characterization of coal and char samples was performed at the University of Pittsburgh using a PC-based image analysis system, BET apparatus, helium pcynometer, and mercury porosimeter. The bulk density, true density, CO{sub 2} surface area, pore volume distribution, and particle size distribution as a function of extent of reaction are reported for both the HVA and LV coal. Analyses of the data were performed to obtain the fractal dimension of the particles as well as estimates for the external surface area. The morphological data together with the thermodynamic data obtained in this investigation provides a complete database for a set of common, well characterized coal and char samples. This database can be used to improve the prediction of particle temperatures in coal devolatilization models. Such models are used both to obtain kinetic rates from fundamental studies and in predicting furnace performance with comprehensive coal combustion codes. Recommendations for heat capacity functions and heats of devolatilization for the HVA and LV coals are given. Results of sample particle temperature calculations using the recommended thermodynamic properties are provided.

Proscia, W.M.; Freihaut, J.D. [United Technologies Research Center, E. Hartford, CT (United States); Rastogi, S.; Klinzing, G.E. [Univ. of Pittsburg, PA (United States)

1994-07-01T23:59:59.000Z

451

Alameda-Contra Costa Transit District (AC Transit) Fuel Cell Transit Buses: Third Evaluation Report and Appendices  

DOE Green Energy (OSTI)

This report describes operations at Alameda-Contra Costa Transit district for three protoype fuel cell buses and six diesel buses operating from the same location.

Chandler, K.; Eudy, L.

2008-07-01T23:59:59.000Z

452

A smooth transition to hydrogen transportation fuel  

SciTech Connect

The goal of this work is to examine viable near-term infrastructure options for a transition to hydrogen fueled vehicles and to suggest profitable directions for technology development. The authors have focused in particular on the contrasting options of decentralized production using the existing energy distribution network, and centralized production of hydrogen with a large-scale infrastructure. Delivered costs have been estimated using best available industry cost and deliberately conservative economic assumptions. The sensitivities of these costs have then been examined for three small-scale scenarios: (1) electrolysis at the home for one car, and production at the small station scale (300 cars/day), (2) conventional alkaline electrolysis and (3) steam reforming of natural gas. All scenarios assume fueling a 300 mile range vehicle with 3.75 kg. They conclude that a transition appears plausible, using existing energy distribution systems, with home electrolysis providing fuel costing 7.5 to 10.5{cents}/mile, station electrolysis 4.7 to 7.1{cents}/mile, and steam reforming 3.7 to 4.7{cents}/mile. The average car today costs about 6{cents}/mile to fuel. Furthermore, analysis of liquid hydrogen delivered locally by truck from central processing plants can also be competitive at costs as low as 4{cents}/mile. These delivered costs are equal to $30 to $70 per GJ, LHV. Preliminary analysis indicates that electricity transmission costs favor this method of distributing energy, until very large (10 GW) hydrogen pipelines are installed. This indicates that significant hydrogen pipeline distribution will be established only when significant markets have developed.

Berry, G.D.; Smith, J.R.; Schock, R.N.

1995-04-14T23:59:59.000Z

453

Rapid quantitative assay for chloramphenicol acetyltransferase  

SciTech Connect

Measuring the expression of exogenous genetic material in mammalian cells is commonly done by fusing the DNA of interest to a gene encoding an easily-detected enzyme. Chloramphenicol acetyltransferase(CAT) is a convenient marker because it is not normally found in eukaryotes. CAT activity has usually been detected using a thin-layer chromatographic separation followed by autoradiography. An organic solvent extraction-based method for CAT detection has also been described, as well as a procedure utilizing HPLC analysis. Building on the extraction technique, they developed a rapid sensitive kinetic method for measuring CAT activity in cell homogenates. The method exploits the differential organic solubility of the substrate ((/sup 3/H) or (/sup 14/C)acetyl CoA) and the product (labeled acetylchloramphenicol). The assay is a simple one-vial, two-phase procedure and requires no tedious manipulations after the initial setup. Briefly, a 0.25 ml reaction with 100mM Tris-HCL, 1mM chloramphenicol, 0.1mM (/sup 14/C)acetyl CoA and variable amounts of cell homogenate is pipetted into a miniscintillation vial, overlaid with 5 ml of a water-immiscible fluor, and incubated at 37/sup 0/C. At suitable intervals the vial is counted and the CAT level is quantitatively determined as the rate of increase in counts/min of the labeled product as it diffuses into the fluor phase, compared to a standard curve. When used to measure CAT in transfected Balb 3T3 cells the method correlated well with the other techniques.

Neumann, J.R.; Morency, C.A.; Russian, K.O.

1987-05-01T23:59:59.000Z

454

Method for rapid, controllable growth and thickness, of ...  

National Renewable Energy Laboratory ... the rate of silicon deposition in a temperature range that spans the transition from a monohydride to a hydrogen free ...

455

Climate Rapid Overview and Decision Support (C-ROADS) Simulator | Open  

Open Energy Info (EERE)

Climate Rapid Overview and Decision Support (C-ROADS) Simulator Climate Rapid Overview and Decision Support (C-ROADS) Simulator Jump to: navigation, search LEDSGP green logo.png FIND MORE DIA TOOLS This tool is part of the Development Impacts Assessment (DIA) Toolkit from the LEDS Global Partnership. Tool Summary LAUNCH TOOL Name: Climate Rapid Overview and Decision Support (C-ROADS) Simulator Agency/Company /Organization: Ventana Systems Inc., Massachusetts Institute of Technology, Sustainability Institute Partner: United States Department of Energy Sector: Climate, Energy Topics: Co-benefits assessment, - Macroeconomic, Pathways analysis Resource Type: Software/modeling tools User Interface: Desktop Application, Spreadsheet Complexity/Ease of Use: Moderate Website: climateinteractive.org/simulations/C-ROADS Cost: Free

456

EMC characteristics of lighting systems.  

E-Print Network (OSTI)

??[Truncated abstract] This thesis examines Electromagnetic Compatibility (EMC) characteristics of lighting systems. The issues examined have become more significant with the rapid development of both… (more)

Zegarac, Zoran

2013-01-01T23:59:59.000Z

457

Energy Transition Model | Open Energy Information  

Open Energy Info (EERE)

Energy Transition Model Energy Transition Model Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Energy Transition Model Agency/Company /Organization: Quintel Intelligence Sector: Energy Topics: Resource assessment Resource Type: Maps, Software/modeling tools User Interface: Website Website: energytransitionmodel.com/ Country: Netherlands Web Application Link: energytransitionmodel.com/ Cost: Free OpenEI Keyword(s): International UN Region: Western Europe References: webservice-energy.org[1] MINES Energy Transition Model[2] Logo: Energy Transition Model The Energy Transition Model is an independent, comprehensive and fact-based energy model that is used by governments, corporations, NGOs and educators in various countries. It is backed by more than 20 partners. There are

458

Rapid Deployment of Rich Catalytic Combustion  

SciTech Connect

The overall objective of this research under the Turbines Program is the deployment of fuel flexible rich catalytic combustion technology into high-pressure ratio industrial gas turbines. The resulting combustion systems will provide fuel flexibility for gas turbines to burn coal derived synthesis gas or natural gas and achieve NO{sub x} emissions of 2 ppmvd or less (at 15 percent O{sub 2}), cost effectively. This advance will signify a major step towards environmentally friendly electric power generation and coal-based energy independence for the United States. Under Phase 1 of the Program, Pratt & Whitney (P&W) performed a system integration study of rich catalytic combustion in a small high-pressure ratio industrial gas turbine with a silo combustion system that is easily scalable to a larger multi-chamber gas turbine system. An implementation plan for this technology also was studied. The principal achievement of the Phase 1 effort was the sizing of the catalytic module in a manner which allowed a single reactor (rather than multiple reactors) to be used by the combustion system, a conclusion regarding the amount of air that should be allocated to the reaction zone to achieve low emissions, definition of a combustion staging strategy to achieve low emissions, and mechanical integration of a Ceramic Matrix Composite (CMC) combustor liner with the catalytic module.

Richard S. Tuthill

2004-06-10T23:59:59.000Z

459

Transitioning from Fuel Cells to Redox Flow Cells  

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

Transitioning From Fuel Cells to Redox Transitioning From Fuel Cells to Redox Flow Cells T. Zawodzinski and Matt Mench University of Tennessee and ORNL Managed by UT-Battelle for the Department of Energy 2 Acknowledgments $$ DOE-OE EPRI GCEP NSF EPSCOR (TN SCORE) UTK Governor's Chair Fund Partner in Crime Matt Mench Managed by UT-Battelle for the Department of Energy 'Peeling the Onion' Personalized History of PEM Fuel Cells We May Recapitulate This for RFBs Catalysis Test System * Small Single Cell * Large Single Cell * Stack * System Layers of the Onion Hot Topic du Jour * Water Management, Membranes * Late '80's, early '90's * Reformate Tolerance, DMFC's * Mid '90's * High Temp Membranes * Late '90's * Durability * Early '00's Modeling * Membrane/ Water * Cathode * Impedance

460

Synthesis of transition metal carbonitrides  

DOE Patents (OSTI)

Transition metal carbonitrides (in particular, titanium carbonitride, TiC.sub.0.5 N.sub.0.5) are synthesized by a self-propagating reaction between the metal (e.g., titanium) and carbon in a nitrogen atmosphere. Complete conversion to the carbonitride phase is achieved with the addition of TiN as diluent and with a nitrogen pressure .gtoreq.0.6 MPa. Thermodynamic phase-stability calculations and experimental characterizations of quenched samples provided revealed that the mechanism of formation of the carbonitride is a two-step process. The first step involves the formation of the nonstoichiometric carbide, TiC.sub.0.5, and is followed by the formation of the product by the incorporation of nitrogen in the defect-structure carbide.

Munir, Zuhair A. R. (Davis, CA); Eslamloo-Grami, Maryam (Davis, CA)

1994-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "rapid transit systems" 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

Electric dipole rovibrational transitions in HD molecule  

E-Print Network (OSTI)

The rovibrational electric dipole transitions in the ground electronic state of the HD molecule are studied. A simple, yet rigorous formula is derived for the transition rates in terms of the electric dipole moment function $D(R)$, which is calculated in a wide range of $R$. Our numerical results for transition rates are in moderate agreement with experiments and previous calculations, but are at least an order of magnitude more accurate.

Pachucki, Krzysztof

2008-01-01T23:59:59.000Z

462

Rapid Assessment of City Emissions (RACE) for Low Carbon Cities...  

Open Energy Info (EERE)

Assessment of City Emissions (RACE) for Low Carbon Cities: Transport and Building Electricity Use Jump to: navigation, search Name Rapid Assessment of City Emissions (RACE) for...

463

City of Grand Rapids - Green Building Requirements for Municipal...  

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

January 2006, the City of Grand Rapids approved a resolution detailing the city's sustainability policy for public buildings. The resolution directed city personnel to implement...

464

Rapid Modeling of Power Electronics Thermal Management Technologies: Preprint  

DOE Green Energy (OSTI)

Describes a method of rapidly evaluating trade-offs associated with alternative packaging configurations and thermal management technologies for power electronics packaging.

Bennion, K.; Kelly, K.

2009-08-01T23:59:59.000Z

465

Method of Rapidly Screening Buffer Layers in Photovoltaics  

ORNL 2010-G0647/jcn UT-B ID 200902275 Method of Rapidly Screening Buffer Layers in Photovoltaics Technology Summary This ORNL invention offers a new method to ...

466

City of Grand Rapids- Green Building Requirements for Municipal Buildings  

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

In January 2006, the City of Grand Rapids approved a resolution detailing the city's sustainability policy for public buildings. The resolution directed city personnel to implement the principles...

467

Sustainable Urban Development Priorities - Development of a Rapid...  

Open Energy Info (EERE)

Development Priorities - Development of a Rapid Assessment Tool for Urban Mobility in Cities with Data Scarcity Jump to: navigation, search Tool Summary Name: Sustainable Urban...

468

Rapid reconnaissance of geothermal prospects using shallow temperature...  

Open Energy Info (EERE)

reconnaissance of geothermal prospects using shallow temperature surveys. Semi-annual technical report Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Report: Rapid...

469

Development of Protocols for Rapid Amplification of STR ...  

Science Conference Proceedings (OSTI)

... Rapid PCR Applications • Faster sample-to-answer ... Cycling for most STR kits is run in '9600 emulation mode' (1oC/s) PCR Thermal Cycling Profile ...

2010-09-20T23:59:59.000Z

470

3-D seismic acquisition gains momentum in transition zone  

Science Conference Proceedings (OSTI)

The hydrocarbon-rich Gulf of Mexico continues to be an active seismic data acquisition arena, with seismic crews working at a rapid-fire pace to acquire 3-D databases on a regional scale. Lately, however, many contractors are looking shoreward to what will be the next active site for data acquisition and exploratory drilling--the coastal transition zone, which extends roughly five miles either side of the coastline. Diverse terrain causes acquisition efforts to shift frequently between land, water and marsh. Each environment carries its own unique acquisition requirements, which means a wide variety of equipment must be constantly available. Need for multiple permits from multiple sources lends itself to a formidable permitting maze, and environmental problems are prevailing in this sensitive wetlands area. With this in mind, Fairfield and Seismic Exchange, Inc., have teamed in a joint venture to produce the world`s largest non-exclusive 3-D seismic transition zone program. The project will build on Fairfield`s massive shallow water effort, which is nearly complete.

Lawrence, M.A. [Fairfield Industries Inc., Houston, TX (United States)

1996-05-01T23:59:59.000Z

471

Building Technologies Office: Transitioning Traditional HVAC...  

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

Traditional HVAC Contractors to Whole House Performance Expert Meeting Building America hosted the "Transitioning Traditional HVAC Contractors to Whole House Performance...

472

Dynamics of a Quantum Phase Transition  

E-Print Network (OSTI)

We present two approaches to the dynamics of a quench-induced phase transition in quantum Ising model. The first one retraces steps of the standard approach to thermodynamic second order phase transitions in the quantum setting. The second one is purely quantum, based on the Landau-Zener formula for transition probabilities in avoided level crossings. We show that the two approaches yield compatible results for the scaling of the defect density with the quench rate. We exhibit similarities between them, and comment on the insights they give into dynamics of quantum phase transitions.

Wojciech H. Zurek; Uwe Dorner; Peter Zoller

2005-03-21T23:59:59.000Z

473

Transit-Oriented Development in Detroit.  

E-Print Network (OSTI)

??Working with the Detroit Department of Transportation, this project outlines a Transit?Oriented Development (TOD) plan in conjunction with the impending Woodward Avenue Light Rail Train… (more)

De Silva, Lauren; Krueger, Allison; Lee, Angela; Mansoor, Paul

2010-01-01T23:59:59.000Z

474

2010 - 2025 Scenario Analysis and Transition Strategies  

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

2025 Scenario Analysis Sig Gronich Technology Validation Manager Manager- Transition Strategies DOE Hydrogen Program DOE Hydrogen Program The President's Hydrogen Fuel Initiative...

475

Transit Infrastructure Finance Through Station Location Auctions  

E-Print Network (OSTI)

evaluated by federal and state funding agencies. Under theseare provided by state and federal transportation agencies toState funding applications Utilize assessment districts Involve transit agency

Ian Carlton

2009-01-01T23:59:59.000Z

476

Hydrogen Infrastructure Transition Analysis: Milestone Report  

DOE Green Energy (OSTI)

This milestone report identifies a minimum infrastructure that could support the introduction of hydrogen vehicles and develops and evaluates transition scenarios supported by this infrastructure.

Melendez, M.; Milbrandt, A.

2006-01-01T23:59:59.000Z

477

Identifying Transition State Features of Enzymatic Conformational...  

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

remains a challenging task. We employ computational strategies in conjunction with NMR experiments to reveal - in atomistic resolution - features of transition states and...

478

"Renewable Energy Transition and International Climate Cooperation  

E-Print Network (OSTI)

"Renewable Energy Transition and International Climate Cooperation: The German Experience" Jürgen at Urbana-Champaign. His research and teaching interests include: energy security, climate change

Sheridan, Jennifer

479

Liquid-Gas phase transition in Bose-Einstein Condensates  

E-Print Network (OSTI)

We study the effects of a repulsive three-body interaction on a system of trapped ultra-cold atoms in a Bose-Einstein condensed state. The corresponding $s-$wave non-linear Schr\\"{o}dinger equation is solved numerically and also by a variational approach. A first-order liquid-gas phase transition is observed for the condensed state up to a critical strength of the effective three-body force.

A. Gammal; T. Frederico; L. Tomio; Ph. Chomaz

1999-04-13T23:59:59.000Z

480

p-wave holographic insulator/superconductor phase transition  

SciTech Connect

Using a five-dimensional anti-de Sitter (AdS) soliton in an Einstein-Yang-Mills theory with SU(2) gauge group, we study p-wave holographic insulator/superconductor phase transition. To explore the phase structure of the model, we consider the system in the probe limit as well as fully back-reacted solutions. We will also study the zero temperature limit of the p-wave holographic superconductor in four dimensions.

Akhavan, Amin [School of physics, Institute for Research in Fundamental Sciences (IPM) P.O. Box 19395-5531, Tehran (Iran, Islamic Republic of); Department of Physics, Sharif University of Technology P.O. Box 11365-9161, Tehran (Iran, Islamic Republic of); Alishahiha, Mohsen [School of physics, Institute for Research in Fundamental Sciences (IPM) P.O. Box 19395-5531, Tehran (Iran, Islamic Republic of)

2011-04-15T23:59:59.000Z

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


481

H{alpha} ABSORPTION IN TRANSITING EXOPLANET ATMOSPHERES  

SciTech Connect

Absorption of stellar H{alpha} by the upper atmosphere of the planet HD 189733b has recently been detected by Jensen et al. Motivated by this observation, we have developed a model for atomic hydrogen in the n = 2 state and compared the resulting H{alpha} line profile to the observations. The model atmosphere is in hydrostatic balance, as well as thermal and photoionization equilibrium. Collisional and radiative transitions are included in the determination of the n = 2 state level population. We find that H{alpha} absorption is dominated by an optical depth {tau} {approx} 1 shell, composed of hydrogen in the metastable 2s state that is located below the hydrogen ionization layer. The number density of the 2s state within the shell is found to vary slowly with radius, while that of the 1s state falls rapidly. Thus while the Ly{alpha} absorption, for a certain wavelength, occurs inside a relatively well defined impact parameter, the contribution to H{alpha} absorption is roughly uniform over the entire atomic hydrogen layer. The model can approximately reproduce the observed Ly{alpha} and H{alpha} integrated transit depths for HD 189733b by using an ionization rate enhanced over that expected for the star by an order of magnitude. For HD 209458b, we are unable to explain the asymmetric H{alpha} line profile observed by Jensen et al., as the model produces a symmetric line profile with transit depth comparable to that of HD 189733b. In an appendix, we study the effect of the stellar Ly{alpha} absorption on the net cooling rate.

Christie, Duncan; Arras, Phil; Li Zhiyun, E-mail: dac5zm@virginia.edu, E-mail: pla7y@virginia.edu, E-mail: zl4h@virginia.edu [Department of Astronomy, University of Virginia, P.O. Box 400325, Charlottesville, VA 22904-4325 (United States)

2013-08-01T23:59:59.000Z

482

Influence of pions on the hadron-quark phase transition  

SciTech Connect

In this work we present the features of the hadron-quark phase transition diagrams in which the pions are included in the system. To construct such diagrams we use two different models in the description of the hadronic and quark sectors. At the quark level, we consider two distinct parametrizations of the Polyakov-Nambu-Jona-Lasinio (PNJL) models. In the hadronic side, we use a well known relativistic mean-field (RMF) nonlinear Walecka model. We show that the effect of the pions on the hadron-quark phase diagrams is to move the critical end point (CEP) of the transitions lines. Such an effect also depends on the value of the critical temperature (T{sub 0}) in the pure gauge sector used to parametrize the PNJL models. Here we treat the phase transitions using two values for T{sub 0}, namely, T{sub 0}= 270 MeV and T{sub 0}= 190 MeV. The last value is used to reproduce lattice QCD data for the transition temperature at zero chemical potential.

Lourenco, O.; Dutra, M.; Frederico, T.; Malheiro, M. [Departamento de Fisica, Instituto Tecnologico de Aeronautica-CTA, 12228-900, Sao Jose dos Campos (Brazil); Delfino, A. [Instituto de Fisica, Universidade Federal Fluminense, Av. Litoranea s/n, 24210-150, Boa Viagem, Niteroi RJ (Brazil)

2013-05-06T23:59:59.000Z

483

Interference in the resonance fluorescence of two incoherently coupled transitions  

E-Print Network (OSTI)

The fluorescence light emitted by a 4-level system in $J=1/2$ to $J=1/2$ configuration driven by a monochromatic laser field and in an external magnetic field is studied. We show that the spectrum of resonance fluorescence emitted on the $\\pi$ transitions shows a signature of spontaneously generated interference effects. The degree of interference in the fluorescence spectrum can be controlled by means of the external magnetic field, provided that the Land\\'e g-factors of the excited and the ground state doublet are different. For a suitably chosen magnetic field strength, the relative weight of the Rayleigh line can be completely suppressed, even for low intensities of the coherent driving field. The incoherent fluorescence spectrum emitted on the $\\pi$ transitions exhibits a very narrow peak whose width and weight depends on the magnetic field strength. We demonstrate that the spectrum of resonance fluorescence emitted on the $\\sigma$ transitions show an indirect signature of interference. A measurement of the relative peak heights in the spectrum from the $\\sigma$ transitions allows to determine the branching ratio of the spontaneous decay of each excited state into the $\\sigma$ channel.

Martin Kiffner; Joerg Evers; Christoph H. Keitel

2006-03-09T23:59:59.000Z

484

Electric dipole-forbidden nuclear transitions driven by super-intense laser fields  

E-Print Network (OSTI)

Electric dipole-forbidden transitions of nuclei interacting with super-intense laser fields are investigated considering stable isotopes with suitable low-lying first excited states. Different classes of transitions are identified, and all magnetic sublevels corresponding to the near-resonantly driven nuclear transition are included in the description of the nuclear quantum system. We find that large transition matrix elements and convenient resonance energies qualify nuclear M1 transitions as good candidates for the coherent driving of nuclei. We discuss the implications of resonant interaction of intense laser fields with nuclei beyond the dipole approximation for the controlled preparation of excited nuclear states and important aspects of possible experiments aimed at observing these effects.

Adriana Pálffy; Jörg Evers; Christoph H. Keitel

2007-10-31T23:59:59.000Z

485

Fuel Cell Buses in U.S. Transit Fleets: Current Status 2011  

DOE Green Energy (OSTI)

This status report, fifth in a series of annual status reports from the U.S. Department of Energy's National Renewable Energy Laboratory (NREL), discusses the achievements and challenges of fuel cell propulsion for transit and summarizes the introduction of fuel cell transit buses in the United States. Progress this year includes an increase in the number of fuel cell electric buses (FCEBs), from 15 to 25, operating at eight transit agencies, as well as increased diversity of the fuel cell design options for transit buses. The report also provides an analysis of the combined results from fuel cell transit bus demonstrations evaluated by NREL with a focus on the most recent data through July 2011 including fuel cell power system reliability and durability; fuel economy; roadcall; and hydrogen fueling results. These evaluations cover 22 of the 25 FCEBs currently operating.

Eudy, L.; Chandler, K.; Gikakis, C.

2011-11-01T23:59:59.000Z

486

Emission Testing of Washington Metropolitan Area Transit Authority (WMATA) Natural Gas and Diesel Transit Buses  

DOE Green Energy (OSTI)

An evaluation of emissions of natural gas and diesel buses operated by the Washington Metro Area Transit Authority.

Melendez, M.; Taylor, J.; Wayne, W. S.; Smith, D.; Zuboy, J.

2005-12-01T23:59:59.000Z

487

Error-eliminating rapid ultrasonic firing  

DOE Patents (OSTI)

A system for producing reliable navigation data for a mobile vehicle, such as a robot, combines multiple range samples to increase the confidence'' of the algorithm in the existence of an obstacle. At higher vehicle speed, it is crucial to sample each sensor quickly and repeatedly to gather multiple samples in time to avoid a collision. Erroneous data is rejected by delaying the issuance of an ultrasonic energy pulse by a predetermined wait-period, which may be different during alternate ultrasonic firing cycles. Consecutive readings are compared, and the corresponding data is rejected if the readings differ by more than a predetermined amount. The rejection rate for the data is monitored and the operating speed of the navigation system is reduced if the data rejection rate is increased. This is useful to distinguish and eliminate noise from the data which truly represents the existence of an article in the field of operation of the vehicle.

Borenstein, J.; Koren, Y.

1993-08-24T23:59:59.000Z

488

Error-eliminating rapid ultrasonic firing  

DOE Patents (OSTI)

A system for producing reliable navigation data for a mobile vehicle, such as a robot, combines multiple range samples to increase the "confidence" of the algorithm in the existence of an obstacle. At higher vehicle speed, it is crucial to sample each sensor quickly and repeatedly to gather multiple samples in time to avoid a collision. Erroneous data is rejected by delaying the issuance of an ultrasonic energy pulse by a predetermined wait-period, which may be different during alternate ultrasonic firing cycles. Consecutive readings are compared, and the corresponding data is rejected if the readings differ by more than a predetermined amount. The rejection rate for the data is monitored and the operating speed of the navigation system is reduced if the data rejection rate is increased. This is useful to distinguish and eliminate noise from the data which truly represents the existence of an article in the field of operation of the vehicle.

Borenstein, Johann (Ann Arbor, MI); Koren, Yoram (Ann Arbor, MI)

1993-08-24T23:59:59.000Z

489

Rapid Relaxation and Embrittlement of Zr-based Bulk Metallic Glasses by Electropulsing  

Science Conference Proceedings (OSTI)

Mechanical relaxation and embrittlement of Zr52.5Cu17.9Ni14.6Al10Ti5 bulk metallic glasses were achieved rapidly by the direct current electropulsing treatment. The temperature profile was recorded by an infrared camera and it was found to be non-uniform in the treated specimen. Specifically, temperatures below the glass transition temperature, near and above the crystallization temperature could be ach- ieved, respectively, at different locations in the same treated specimen. Two sets of nanoindentation were conducted. While the first set investigated the mechanical properties of three individually elec- tropulsed specimens with different conditions, the second set indented a single treated specimen along its temperature gradient. Both sets of indentation revealed that by Joule heating to different tempera- tures, relaxation, embrittlement, and crystallization were significantly accelerated by electrical pulses. Results suggest that electropulsing provides an opportunity to simultaneously achieve plastic forming and mechanical property control of metallic glasses.

Yiu, P [Department of Materials Science and Engineering, National Taiwan University, Taipei 106, Taiwan; Chen, Y. C. [National Taiwan University of Science & Technology; Chu, J. P. [National Taiwan Ocean University; Chang, S Y [National Chung Hsing University; Bei, Hongbin [ORNL; Jang, J. S.C. [National Central University, Jhongli 32001, Taiwan; Hsueh, C. H. [Department of Materials Science and Engineering, National Taiwan University, Taipei 106, Taiwan

2013-01-01T23:59:59.000Z

490

Detection of dynamical transitions in hydrogenous materials using transmission measurements with very cold neutrons  

SciTech Connect

We have tested the transmission of very cold neutrons as a method to measure dynamical transitions in hydrogenous materials. Transmitted intensities vs. temperature at 30 A neutron wavelength were measured for four materials that undergo phase transformations associated with changes in dynamics: ammonium iodide, sodium borohydride, hexamethylbenzene, and dicesium dodecahydro-closo-dodecaborate. In some cases, neutron vibrational spectra above and below the transformation temperatures are compared to the transmission results. The measurements show changes in transmission at or near the transition for all these compounds, reflecting dynamical changes. The results demonstrate that the transmission method is sensitive to motional changes due to a wide range of structural transitions, from first-order to much more subtle order-disorder effects and for both small molecular species and larger molecules. The technique is valuable for rapid (ca. hours) scans of new materials to guide neutron inelastic scattering experiments or to complement the results of other techniques. - Graphical abstract: The transmission of very long wavelength neutrons is a highly sensitive probe of dynamical transitions in hydrogenous materials. Highlights: > Transmission of very long wavelength neutrons can probe dynamical transitions. > The technique is sensitive for both first-order and order-disorder transformations. > Changes in dynamical behavior of small and large molecular species can be detected. > This method can be a valuable guide for complex neutron scattering experiments.

Verdal, Nina, E-mail: nina.verdal@nist.gov [NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, MD 20899-6102 (United States); Udovic, Terrence J.; Copley, John R.D. [NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, MD 20899-6102 (United States); Rush, John J. [NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, MD 20899-6102 (United States); Department of Materials Science and Engineering, University of Maryland, College Park, MD 20742-2115 (United States)

2011-10-15T23:59:59.000Z

491