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We encourage you to perform a real-time search of NLEBeta
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1

Nuclear Concrete Materials Database Phase I Development  

SciTech Connect (OSTI)

The FY 2011 accomplishments in Phase I development of the Nuclear Concrete Materials Database to support the Light Water Reactor Sustainability Program are summarized. The database has been developed using the ORNL materials database infrastructure established for the Gen IV Materials Handbook to achieve cost reduction and development efficiency. In this Phase I development, the database has been successfully designed and constructed to manage documents in the Portable Document Format generated from the Structural Materials Handbook that contains nuclear concrete materials data and related information. The completion of the Phase I database has established a solid foundation for Phase II development, in which a digital database will be designed and constructed to manage nuclear concrete materials data in various digitized formats to facilitate electronic and mathematical processing for analysis, modeling, and design applications.

Ren, Weiju [ORNL; Naus, Dan J [ORNL

2012-05-01T23:59:59.000Z

2

GEA Development Phases | 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 » GEA Development Phases Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home GEA Development Phases The information for this page was taken directly from Geothermal Reporting Terms and Definitions: A Guide to Reporting Resource Development Progress and Results to the Geothermal Energy Association (GEA, November 2010) Gea.jpg The Geothermal Energy Association's (GEA) Geothermal Reporting Terms and Definitions are a guideline for geothermal developers to use when submitting geothermal resource development information to GEA for public dissemination in its annual US Geothermal Power Production and Development

3

Phase III - Permitting and Initial Development | Open Energy Information  

Open Energy Info (EERE)

III - Permitting and Initial Development III - Permitting and Initial Development Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home GEA Development Phase III: Permitting and Initial Development GEA Development Phases The Geothermal Energy Association's (GEA) Geothermal Reporting Terms and Definitions are a guideline for geothermal developers to use when submitting geothermal resource development information to GEA for public dissemination in its annual US Geothermal Power Production and Development Update. GEA's Geothermal Reporting Terms and Definitions serve to increase the consistency, accuracy, and reliability of industry information presented in the development updates. Phase I - Resource Procurement and Identification Phase II - Resource Exploration and Confirmation Phase III - Permitting and Initial Development

4

Property:GeothermalDevelopmentPhases | Open Energy Information  

Open Energy Info (EERE)

GeothermalDevelopmentPhases GeothermalDevelopmentPhases Jump to: navigation, search Property Name GeothermalDevelopmentPhases Property Type Page Pages using the property "GeothermalDevelopmentPhases" Showing 25 pages using this property. (previous 25) (next 25) B BLM-NV-WN-ES-08-01-1310, NV-020-08-01 + Geothermal/Power Plant + C CA-017-05-051 + Geothermal/Well Field + CA-170-02-15 + Geothermal/Exploration + CA-650-2005-086 + Geothermal/Exploration + CA-670-2010-CX + Geothermal/Exploration + CA-96062042 + Geothermal/Power Plant +, Geothermal/Well Field +, Geothermal/Transmission + D DOE-EA-1116 + Geothermal/Power Plant +, Geothermal/Well Field +, Geothermal/Transmission + DOE-EA-1621 + Geothermal/Power Plant + DOE-EA-1676 + Geothermal/Power Plant + DOE-EA-1733 + Geothermal/Well Field +

5

Plains CO2 Reduction Partnership--Development Phase  

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

Development Phase Development Phase Background As part of a comprehensive effort to assess options for sustainable energy systems, the U.S. Department of Energy has selected seven regional partnerships, through its Regional Carbon Sequestration Partnership (RCSP) initiative, to determine the best approaches for capturing and permanently storing carbon dioxide (CO 2 ), a greenhouse gas (GHG) which can contribute to global climate change. The partnerships are

6

Phase equilibrium data for development of correlations for coal fluids  

SciTech Connect (OSTI)

The overall objective of the authors' work is to develop accurate predictive methods for representations of vapor-liquid equilibria in systems encountered in coal-conversion processes. The objectives pursued in the present project include: (1) Measurements of binary vapor-liquid phase behavior data for selected solute gases (e.g., C{sub 2}H{sub 6}, CH{sub 4}) in a series of paraffinic, naphthenic, and aromatic hydrocarbon solvents to permit evaluations of interaction parameters in models for phase behavior. Solubilities of the gases in the liquid phase have been determined. (2) Evaluation of existing equations of state and other models for representations of phase behavior in systems of the type studied experimentally; development of new correlation frameworks as needed. (3) Generalization of the interaction parameters for the solutes studied to a wide spectrum of heavy solvents; presentation of final results in formats useful in the design/optimization of coal liquefaction processes.

Robinson, R.L. Jr.; Gasem, K.A.M.; Darwish, N.A.; Raff, A.M.

1991-02-01T23:59:59.000Z

7

Long Range Campus Development Plan Implementation and Plan Phasing  

E-Print Network [OSTI]

Long Range Campus Development Plan Implementation and Plan Phasing 55 Introduction Plan Review approach and the formal, regular review of the process of the Plan. MSU will revisit the Plan on a cyclical will continue to build upon and refine these fundamental elements and strategies. Recurring review of the Plan

Maxwell, Bruce D.

8

Phase five  

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

Phase five Phase five 1663 Los Alamos science and technology magazine Latest Issue:November 2013 All Issues » submit Phase five Los Alamos physicists have conclusively demonstrated the existence of a new phase of matter. November 25, 2013 Phase five Scientists still have more to learn about the exotic physics of specialty materials. What makes the cuprates special? How about a new phase of matter. Ceramic metals known as cuprates have mystified physicists for decades. They exhibit a variety of distinct phases of matter, each with its own specific properties, including a phase bearing an exotic type of magnetism, a high-temperature superconducting phase, an ordinary metal phase, a poorly understood and weird metallic phase simply called a strange metal, and an equally poorly understood metallic phase known as the pseudogap. The

9

Microgrid Design, Development and Demonstration - Final Report for Phase I and Phase II  

SciTech Connect (OSTI)

This document constitutes GEs final report for the Microgrid Design, Development and Demonstration program for DOEs Office of Electricity Delivery and Energy Reliability, Award DE-FC02-05CH11349. It contains the final report for Phase I in Appendix I, and the results the work performed in Phase II. The program goal was to develop and demonstrate a Microgrid Energy Management (MEM) framework for a broad set of Microgrid applications that provides unified controls, protection, and energy management. This project contributed to the achievement of the U.S. Department of Energys Renewable and Distributed Systems Integration Program goals by developing a fully automated power delivery microgrid network that: - Reduces carbon emissions and emissions of other air pollutants through increased use of optimally dispatched renewable energy, - Increases asset use through integration of distributed systems, - Enhances reliability, security, and resiliency from microgrid applications in critical infrastructure protection, constrained areas of the electric grid, etc. - Improves system efficiency with on-site, distributed generation and improved economic efficiency through demand-side management.

Sumit Bose; Michael Krok

2011-02-08T23:59:59.000Z

10

Phase Diagram of Fully Developed Drainage in Porous Media  

SciTech Connect (OSTI)

Using concepts of invasion percolation in a gradient, we develop a phase diagram of fully developed drainage in porous media. The transition between stabilized displacement (where the conventional continuum applies) and fingering is controlled by the change of the sign of the gradient of the percolation probability (from stabilizing to destabilizing). The transition boundary is described by scaling laws. {copyright} {ital 1997} {ital The American Physical Society}

Yortsos, Y.C.; Xu, B. [Petroleum Engineering Program, Department of Chemical Engineering, University of Southern California, Los Angeles, California 90089-1211 (United States)] [Petroleum Engineering Program, Department of Chemical Engineering, University of Southern California, Los Angeles, California 90089-1211 (United States); Salin, D. [Laboratoire Fluides, Automatique et Systemes Thermiques, Universite Paris VI and XI, associated with C.N.R.S. (URA 871), Batiment 502, Campus Universitaire, 91405 Orsay Cedex (France)] [Laboratoire Fluides, Automatique et Systemes Thermiques, Universite Paris VI and XI, associated with C.N.R.S. (URA 871), Batiment 502, Campus Universitaire, 91405 Orsay Cedex (France)

1997-12-01T23:59:59.000Z

11

Streak tube photocathode development program. Phase 2, Final technical report  

SciTech Connect (OSTI)

This report details the progress made toward developing a streak tube with greater than 1% quantum efficiency at a wavelength of 1300 nm. The achieved performance is the result of approximately three years of effort. The goal of Phase 2 of this contract was to seal a working 1.3 {mu}m streak tube. This effort was focused in two areas. First there was a continuing effort to further develop and demonstrate the cathodes ability to meet the stated requirements. The second effort was aimed at solving the mechanical and process related problems related to sealing this cathode onto a EG&G streak tube.

Not Available

1993-11-20T23:59:59.000Z

12

PROGRESS ON GENERIC PHASE-FIELD METHOD DEVELOPMENT  

SciTech Connect (OSTI)

In this report, we summarize our current collobarative efforts, involving three national laboratories: Idaho National Laboratory (INL), Pacific Northwest National Laboratory (PNNL) and Los Alamos National Laboatory (LANL), to develop a computational framework for homogenous and heterogenous nucleation mechanisms into the generic phase-field model. During the studies, the Fe-Cr system was chosen as a model system due to its simplicity and availability of reliable thermodynamic and kinetic data, as well as the range of applications of low-chromium ferritic steels in nuclear reactors. For homogenous nucleation, the relavant parameters determined from atomistic studies were used directly to determine the energy functional and parameters in the phase-field model. Interfacial energy, critical nucleus size, nucleation rate, and coarsening kinetics were systematically examined in two- and three- dimensional models. For the heteregoneous nucleation mechanism, we studied the nucleation and growth behavior of chromium precipitates due to the presence of dislocations. The results demonstrate that both nucleation schemes can be introduced to a phase-field modeling algorithm with the desired accuracy and computational efficiency.

Biner, Bullent; Tonks, Michael; Millett, Paul C.; Li, Yulan; Hu, Shenyang Y.; Gao, Fei; Sun, Xin; Martinez, E.; Anderson, D.

2012-09-26T23:59:59.000Z

13

phase coherence  

Science Journals Connector (OSTI)

The state in which two signals, such as electronic or optical signals, maintain (a) a fixed phase relationship with each other or (b) a fixed phase relationship with a third signal that can serve as a referenc...

2001-01-01T23:59:59.000Z

14

X-ray Phase Contrast analysis - Digital wavefront development  

SciTech Connect (OSTI)

Optical schemes that enable imaging of the phase shift produced by an object have become popular in the x-ray region, where phase can be the dominant contrast mechanism. The propagation-based technique consists of recording the interference pattern produced by choosing one or several sample-to-detector distances. Pioneering studies, carried out making use of synchrotron radiation, demonstrated that this technique results in a dramatic increase of image contrast and detail visibility, allowing the detection of structures invisible with conventional techniques. An experimental and theoretical study of in-line hard x-ray phase-contrast imaging had been performed. The theoretical description of the technique is based on Fresnel diffraction. As an illustration of the potential of this quantitative imaging technique, high-resolution x-ray phase contrast images of simple objects will be presented.

Idir, Mourad [Metrology Beamline, Synchrotron SOLEIL, Gif-sur-Yvette (France); Potier, Jonathan [Phaseview, Palaiseau (France); Universite Paul Sabatier-Toulouse III, Metrology Beamline, Synchrotron SOLEIL, Gif-sur-Yvette (France); Fricker, Sebastien [Phaseview, Palaiseau (France); Snigirev, Anatoly; Snigireva, Irina [ESRF, Grenoble (France); Modi, M. H. [X-ray Optics Section, Raja Ramanna Centre for Advanced Technology, Indore (India)

2010-06-23T23:59:59.000Z

15

CIM5 Phase III base process development results  

SciTech Connect (OSTI)

Integrated Demonstration Runs for the Am/Cm vitrification process were initiated in the Coupled 5-inch Cylindrical Induction Melter (CIM5) on 11/30/98 and completed on 12/9/98. Four successful runs at 60 wt% lanthanide loading were completed which met or exceeded all established criteria. The operating parameters used in these runs established the base conditions for the 5-inch Cylindrical Induction Melter (CIM5) process and were summarized in the 5-inch CIM design basis, SRT-AMC-99-OO01. (1) In subsequent tests, a total of fourteen CIM5 runs were performed using various power inputs, ramp rates and target temperatures to define the preferred processing conditions (2) Process stability and process flexibility were the key criteria used in assessing the results for each run. A preferred set of operating parameters was defined for the CIM5 batch process and these conditions were used to generate a pre-programmed, automatic processing cycle that was used for the last six CIM.5 runs (3) These operational tests were successfully completed in the January-February time frame and were summarized in SRT-AMC-99-00584. The recommended set of operating conditions defined in Runs No.1 through No.14 was used as the starting point for further pilot system runs to determine the robustness of the process, evaluate a bubbler, and investigate off-normal conditions. CIM5 Phase III Runs No.15 through No.60 were conducted utilizing the pre-programmed, automatic processing cycle to investigate system performance. This report summarizes the results of these tests and provides a recommendation for the base process as well as a processing modification for minimizing volume expansions if americium and/or curium are subject to a thermal reduction reaction like cerium. This document summarizes the results of the base process development tests conducted in the Am/Cm Pilot Facility located in Building 672-T.

Witt, D.C.

2000-01-06T23:59:59.000Z

16

Phase Development in a U-7 wt.% Mo vs. Al-7 wt.% Ge Diffusion Couple  

SciTech Connect (OSTI)

Fuel development for the Reduced Enrichment for Research and Test Reactors (RERTR) program has demonstrated that U-Mo alloys in contact with Al develop interaction regions with phases that have poor irradiation behavior. The addition of Si to the Al has been considered with positive results. Compositional modification to replace Si with Ge is now under evaluation to attempt to further improve irradiation behavior. In this study, the microstructural and phase development of a diffusion couple of U-7 wt.% Mo in contact with Al-7 wt.% Ge was examined by transmission electron microscopy, scanning electron microscopy and energy dispersive spectroscopy. The interdiffusion zone developed a microstructure that included the cubic-UGe3 phase and amorphous phases. The UGe3 phase was observed with and without Mo and Al solid solutioning developing a (U,Mo)(Al,Ge)3 phase.

E. Perez; D.D. Keiser, Jr.; Y.H. Sohn

2013-10-01T23:59:59.000Z

17

Developement of a digitally controlled low power single phase inverter for grid connected solar panel.  

E-Print Network [OSTI]

?? The work consists in developing a power conversion unit for solar panel connected to the grid. This unit will be a single phase inverter (more)

Marguet, Raphael

2010-01-01T23:59:59.000Z

18

Biomass power for rural development: Phase 2. Technical progress report, April 1--June 30, 1998  

SciTech Connect (OSTI)

The project undertaken by the Salix Consortium is a multi-phased, multi-partner endeavor. Phase-1 focused on initial development and testing of the technology and agreements necessary to demonstrate commercial willow production in Phase-2. The Phase-1 objectives have been successfully completed: preparing final design plans for two utility pulverized coal boilers, developing fuel supply plans for the project, obtaining power production commitments from the power companies for Phase-2, obtaining construction and environmental permits, and developing an experimental strategy for crop production and power generation improvements needed to assure commercial success. The R and D effort also addresses environmental issues pertaining to introduction of the willow energy system. Beyond those Phase-1 requirements the Consortium has already successfully demonstrated cofiring at Greenidge Station and developed the required nursery capacity for acreage scale-up. This past summer 105 acres were prepared in advance for the spring planting in 1998. Having completed the above tasks, the Consortium is well positioned to begin Phase-2. In phase-2 every aspect of willow production and power generation from willow will be demonstrated. The ultimate objective of Phase-2 is to transition the work performed under the Rural Energy for the Future project into a thriving, self-supported energy crop enterprise.

Neuhauser, E.

1998-11-01T23:59:59.000Z

19

Development of an Enhanced Two-Phase Production System at the Geysers Geothermal Field  

SciTech Connect (OSTI)

A method was developed to enhance geothermal steam production from two-phase wells at THE Geysers Geothermal Field. The beneficial result was increased geothermal production that was easily and economically delivered to the power plant.

Steven Enedy

2001-12-14T23:59:59.000Z

20

Design and development of a laminated Fresnel lens for point-focus PV systems. Phase II  

SciTech Connect (OSTI)

A laminated glass-plastic lens parquet using injection molded point focus Fresnel lenses is described. The second phase of a program aimed at investigating the cost effectiveness of a glass-plastic concentrator lens assembly is reported. The first phase dealt with the development of a first generation lens design, the selection of the preferred glass coverplate and glass-to-lens adhesive and initial injection molding lens molding trials. The second phase has dealt with the development of an improved lens design, a full size parquet lamination process, and a second group of injection molding lens molding trials.

Hodge, R.C.

1982-12-01T23:59:59.000Z

Note: This page contains sample records for the topic "development phase phase" 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

Seismic reflection evidence for two phase development of Tertiary basins from east-central Nevada  

SciTech Connect (OSTI)

Two east-west seismic reflection profiles crossing Antelope Valley, Smokey Valley, Railroad Valley and Big Sand Springs Valley demonstrate the evolution of Tertiary extension from broad sags to narrow, fault-bounded basins. Seismic reflection data was acquired for the Anschutz Corporation by the Digicon Corporation during the winter of 1988/1989. Reprocessing of a 480 channel, 60 fold, dynamite source experiment enabled good imaging of the basin stratigraphy. These data suggest two distinct phases of basin development occurred, separated by a regional unconformity. The early phase is characterized by development of a broad basin riddled with many small offset normal faults. The later phase shows a narrowing of the basin and subsidence along one dominant structure, an apparent planar normal fault. The unconformity separating the two phases of extension marks a transition from broad subsidence to local asymmetric tilting that took place over a short period of time relative to sedimentation rates. Antelope Valley and Railroad Valley clearly show strong evidence for two phase development, whereas Smokey Valley represents mostly the early phase and Big Sand Springs Valley represents only the later phase of extension. The absence of dating within the basins precludes the authors from determining if the abrupt tectonic transition within the basins resulted from differences in local strain rates or amounts, or was due to changes in regional stress fields.

Liberty, L.M.; Heller, P.L.; Smithson, S.B. (Univ. of Wyoming, Laramie, WY (United States). Dept. of Geology and Geophysics)

1993-04-01T23:59:59.000Z

22

Development of a Dispatchable PV Peak Shainv System. PV: Bonus Program - Phase 1 Report. Volume 1  

SciTech Connect (OSTI)

This report summarizes the work performed by Delmarva Power and Light and its subcontractors in Phase 1 of the US Department of Energy's PV:BONUS Program. The purpose of the program is to develop products and systems for buildings which utilize photovoltaic (N) technology. Beginning with a cooperative research effort with the University of Delaware's Center for Energy and Environmental Policy Research Delmarva Power developed and demonstrated the concept of Dispatchable PV Peak Shaving. This concept and the system which resulted horn the development work are unique from other grid-connected PV systems because it combines a PV, battery energy storage, power conversion and control technologies into an integrated package. Phase 1 began in July 1993 with the installation of a test and demonstration system at Delmarva's Northern Division General Office building near Newark, Delaware. Following initial testing throughout the summer and fall of 1993, significant modifications were made under an amendment to the DOE contract. Work on Phase 1 concluded in the early spring of 1995. Significant progress towards the goal of commercializing the system was made during Phase 1, and is summarized. Based on progress in Phase 1, a proposal to continue the work in Phase 2 was submitted to the US DOE in May 1995. A contract amendment and providing funds for the Phase 2 work is expected in July 1995.

None

1995-10-01T23:59:59.000Z

23

NGNP PHASE I REVIEW  

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

REVIEW REVIEW NEAC REACTOR TECHNOLOGY SUBCOMMITTEE FINAL REPORT JUNE 15, 2011 EPACT 2005 REQUIREMENTS * FIRST PROJECT PHASE REVIEW-On a determination by the Secretary that the appropriate activities under the first project phase under subsection (b)(1) are nearly complete, the Secretary shall request the NERAC to conduct a comprehensive review of the Project and to report to the Secretary the recommendation of the NERAC concerning whether the Project is ready to proceed to the second project phase under subsection (b)(2) NGNP PROJECT PHASES (1) FIRST PHASE.-A first project phase shall be conducted to- (A) select and validate the appropriate technology under subsection (a)(1); (B) carry out enabling research, development, and demonstration activities on technologies and components under

24

North Wind 4-kW wind-system development. Phase II. Fabrication and test  

SciTech Connect (OSTI)

This report presents the results of Phase II (testing and fabrication) of a program funded by the US Department of Energy to design, fabricate, and test a cost-effective wind system in the 3 to 6 kW class. During Phase II, using the design developed during Phase I, a prototype 4 kW machine was fabricated and tested in Waitsfield, Vermont. Several problems were encountered and subsequently analyzed. Design modifications, including the use of a larger alternator, are described. Test performed by North Wind and by Rockwell International (which monitored the program) demonstrated the predicted performance characteristics and the validity of the North Wind design.

Lynch, J.; Coleman, C.; Mayer, D.J.

1983-01-01T23:59:59.000Z

25

TWRS privatization Phase I site development design requirements document  

SciTech Connect (OSTI)

The DOE-RL is pursuing a strategy of hiring private contractors for treatment of Hanford Site tank wastes. This strategy is called privatization and includes design, permitting,construction, operation, and deactivation of facilities for tank waste treatment. The TWRS Privatization Infrastructure Project consists of several sub- projects which will provide key services needed to support the privatization mission. This document identifies the design requirements for the site development sub-project, including construction, power, water, and road modifications. It will be used in development of the project`s conceptual design.

Shord, A.L.

1997-01-21T23:59:59.000Z

26

Phase 1 Development Report for the SESSA Toolkit.  

SciTech Connect (OSTI)

The Site Exploitation System for Situational Awareness ( SESSA ) tool kit , developed by Sandia National Laboratories (SNL) , is a comprehensive de cision support system for crime scene data acquisition and Sensitive Site Exploitation (SSE). SESSA is an outgrowth of another SNL developed decision support system , the Building R estoration Operations Optimization Model (BROOM), a hardware/software solution for data acquisition, data management, and data analysis. SESSA was designed to meet forensic crime scene needs as defined by the DoD's Military Criminal Investigation Organiza tion (MCIO) . SESSA is a very comprehensive toolki t with a considerable amount of database information managed through a Microsoft SQL (Structured Query Language) database engine, a Geographical Information System (GIS) engine that provides comprehensive m apping capabilities, as well as a an intuitive Graphical User Interface (GUI) . An electronic sketch pad module is included. The system also has the ability to efficiently generate necessary forms for forensic crime scene investigations (e.g., evidence submittal, laboratory requests, and scene notes). SESSA allows the user to capture photos on site, and can read and generate ba rcode labels that limit transcription errors. SESSA runs on PC computers running Windows 7, but is optimized for touch - screen tablet computers running Windows for ease of use at crime scenes and on SSE deployments. A prototype system for 3 - dimensional (3 D) mapping and measur e ments was also developed to complement the SESSA software. The mapping system employs a visual/ depth sensor that captures data to create 3D visualizations of an interior space and to make distance measurements with centimeter - level a ccuracy. Output of this 3D Model Builder module provides a virtual 3D %22walk - through%22 of a crime scene. The 3D mapping system is much less expensive and easier to use than competitive systems. This document covers the basic installation and operation of th e SESSA tool kit in order to give the user enough information to start using the tool kit . SESSA is currently a prototype system and this documentation covers the initial release of the tool kit . Funding for SESSA was provided by the Department of Defense (D oD), Assistant Secretary of Defense for Research and Engineering (ASD(R&E)) Rapid Fielding (RF) organization. The project was managed by the Defense Forensic Science Center (DFSC) , formerly known as the U.S. Army Criminal Investigation Laboratory (USACIL) . ACKNOWLEDGEMENTS The authors wish to acknowledge the funding support for the development of the Site Exploitation System for Situational Awareness (SESSA) toolkit from the Department of Defense (DoD), Assistant Secretary of Defense for Research and Engineering (ASD(R&E)) Rapid Fielding (RF) organization. The project was managed by the Defense Forensic Science Center (DFSC) , formerly known as the U.S. Army Criminal Investigation Laboratory (USACIL). Special thanks to Mr. Garold Warner, of DFSC, who served as the Project Manager. Individuals that worked on the design, functional attributes, algorithm development, system arc hitecture, and software programming include: Robert Knowlton, Brad Melton, Robert Anderson, and Wendy Amai.

Knowlton, Robert G.; Melton, Brad J; Anderson, Robert J.

2014-09-01T23:59:59.000Z

27

Transverse emittance and phase space program developed for use at the Fermilab A0 Photoinjector  

SciTech Connect (OSTI)

The Fermilab A0 Photoinjector is a 16 MeV high intensity, high brightness electron linac developed for advanced accelerator R&D. One of the key parameters for the electron beam is the transverse beam emittance. Here we report on a newly developed MATLAB based GUI program used for transverse emittance measurements using the multi-slit technique. This program combines the image acquisition and post-processing tools for determining the transverse phase space parameters with uncertainties. An integral part of accelerator research is a measurement of the beam phase space. Measurements of the transverse phase space can be accomplished by a variety of methods including multiple screens separated by drift spaces, or by sampling phase space via pepper pots or slits. In any case, the measurement of the phase space parameters, in particular the emittance, can be drastically simplified and sped up by automating the measurement in an intuitive fashion utilizing a graphical interface. At the A0 Photoinjector (A0PI), the control system is DOOCS, which originated at DESY. In addition, there is a library for interfacing to MATLAB, a graphically capable numerical analysis package sold by The Mathworks. It is this graphical package which was chosen as the basis for a graphical phase space measurement system due to its combination of analysis and display capabilities.

Thurman-Keup, R.; Johnson, A.S.; Lumpkin, A.H.; Ruan, J.; /Fermilab

2011-03-01T23:59:59.000Z

28

ENGINEERING DEVELOPMENT OF COAL-FIRED HIGH PERFORMANCE POWER SYSTEMS PHASE II AND III  

SciTech Connect (OSTI)

This report presents work carried out under contract DE-AC22-95PC95144 "Engineering Development of Coal-Fired High Performance Systems Phase II and III." The goals of the program are to develop a coal-fired high performance power generation system (HIPPS) that is capable of: thermal efficiency (HHV) >47%; NOx, SOx, and particulates <10% NSPS (New Source Performance Standard); coal providing >65% of heat input; all solid wastes benign; cost of electricity <90% of present plants. Phase I, which began in 1992, focused on the analysis of various configurations of indirectly fired cycles and on technical assessments of alternative plant subsystems and components, including performance requirements, developmental status, design options, complexity and reliability, and capital and operating costs. Phase I also included preliminary R&D and the preparation of designs for HIPPS commercial plants approximately 300 MWe in size. This phase, Phase II, involves the development and testing of plant subsystems, refinement and updating of the HIPPS commercial plant design, and the site selection and engineering design of a HIPPS prototype plant. Work reported herein is from: Task 2.2 HITAF Air Heaters; Task 6 HIPPS Commercial Plant Design Update.

NONE

1998-09-30T23:59:59.000Z

29

CrowdPhase: crowdsourcing the phase problem  

Science Journals Connector (OSTI)

The idea of attacking the phase problem by crowdsourcing is introduced. Using an interactive, multi-player, web-based system, participants work simultaneously to select phase sets that correspond to better electron-density maps in order to solve low-resolution phasing problems.

Jorda, J.

2014-05-23T23:59:59.000Z

30

Development of a coal fired pulse combustor for residential space heating. Phase I, Final report  

SciTech Connect (OSTI)

This report presents the results of the first phase of a program for the development of a coal-fired residential combustion system. This phase consisted of the design, fabrication, testing, and evaluation of an advanced pulse combustor sized for residential space heating requirements. The objective was to develop an advanced pulse coal combustor at the {approximately} 100,000 Btu/hr scale that can be integrated into a packaged space heating system for small residential applications. The strategy for the development effort included the scale down of the feasibility unit from 1-2 MMBtu/hr to 100,000 Btu/hr to establish a baseline for isolating the effect of scale-down and new chamber configurations separately. Initial focus at the residential scale was concentrated on methods of fuel injection and atomization in a bare metal unit. This was followed by incorporating changes to the advanced chamber designs and testing of refractory-lined units. Multi-fuel capability for firing oil or gas as a secondary fuel was also established. Upon completion of the configuration and component testing, an optimum configuration would be selected for integrated testing of the pulse combustor unit. The strategy also defined the use of Dry Ultrafine Coal (DUC) for Phases 1 and 2 of the development program with CWM firing to be a product improvement activity for a later phase of the program.

NONE

1988-04-01T23:59:59.000Z

31

Phase 1: Forming and Norming Leaders Guide for developing a Community Wildfire Protection Plan  

E-Print Network [OSTI]

Phase 1: Forming and Norming Leaders Guide for developing a Community Wildfire Protection Plan This Leaders Guide is designed to supplement the document entitled: "Preparing a Community Wildfire Protection Guide Supplement for details about each of the step instructions listed on this Fire Chiefs / Leaders

32

The nal phase of dead-ice moraine development: processes and sediment architecture, Kotlujokull, Iceland  

E-Print Network [OSTI]

with an interrelated group of re-sedimentation processes and surface features. Series of sinkholes evolve at the toeThe ®nal phase of dead-ice moraine development: processes and sediment architecture, Ko the ®nal melting processes to the architecture of the sedimentary end product. In the current humid sub

Ingólfsson, ?lafur

33

Phasing Loops  

E-Print Network [OSTI]

of this work references minimalist composers and visual artist and composer Brian Eno. This thesis documents the research with analog and digital technologies, and the development of this installation....

Guinski, Rodrigo 1980-

2012-11-30T23:59:59.000Z

34

Engineering development of coal-fired high performance power systems phase 2 and 3  

SciTech Connect (OSTI)

The goals of the program are to develop a coal-fired high performance power generation system (HIPPS) that is capable of: thermal efficiency (HHV) {ge} 47%; NOx, SOx, and particulates {le}10% NSPS (New Source Performance Standard); coal providing {ge} 65% of heat input; all solid wastes benign; and cost of electricity {le} 90% of present plants. Phase 1, which began in 1992, focused on the analysis of various configurations of indirectly fired cycles and on technical assessments of alternative plant subsystems and components, including performance requirements, developmental status, design options, complexity and reliability, and capital and operating costs. Phase 1 also included preliminary R and D and the preparation of designs for HIPPS commercial plants approximately 300 MWe in size. This phase, Phase 2, involves the development and testing of plant subsystems, refinement and updating of the HIPPS commercial plant design, and the site selection and engineering design of a HIPPS prototype plant. Work reported herein is from: Task 2.2 HITAF Air Heaters; and Task 2.4 Duct Heater and Gas Turbine Integration.

Unknown

1999-08-01T23:59:59.000Z

35

Wax phase equilibria: developing a thermodynamic model using a systematic approach  

Science Journals Connector (OSTI)

Reservoir hydrocarbon fluids contain heavy paraffins that may form solid phases of wax at low temperatures. Problems associated with wax formation and deposition are a major concern in production and transportation of hydrocarbon fluids. The industry has directed considerable efforts towards generating reliable experimental data and developing thermodynamic models for estimating the wax phase boundary. The cloud point temperature, i.e. the wax appearance temperature (WAT) is commonly measured in laboratories and traditionally used in developing and/or validating wax models. However, the WAT is not necessarily an equilibrium point, and its value can depend on experimental procedures. Furthermore, when determining the wax phase boundary at pipeline conditions, the common practice is to measure the wax phase boundary at atmospheric pressure, then apply the results to real pipeline pressure conditions. However, neglecting the effect of pressure and associated fluid thermophysical/compositional changes can lead to unreliable results. In this paper, a new thermodynamic model for wax is proposed and validated against wax disappearance temperature (WDT) data for a number of binary and multi-component systems. The required thermodynamic properties of pure n-paraffins are first estimated, and then a new approach for describing wax solids, based on the UNIQUAC equation, is described. Finally, the impact of pressure on wax phase equilibria is addressed. The newly developed model demonstrates good reliability for describing solids behaviour in hydrocarbon systems. Furthermore, the model is capable of predicting the amount of wax precipitated and its composition. The predictions compare well with independent experimental data, demonstrating the reliability of the thermodynamic approach.

Hong-Yan Ji; Bahman Tohidi; Ali Danesh; Adrian C Todd

2004-01-01T23:59:59.000Z

36

Quantum Spin Hall Phases  

Science Journals Connector (OSTI)

......even it is called the weak topological in- sulator (WTI). The STI and WTI correspond to the QSH and I phases, respectively...are used to distinguish various phases in the STI or WTI phases, and each phase can be associated with a mod......

Shuichi Murakami

2008-06-01T23:59:59.000Z

37

Property:GEADevelopmentPhase | Open Energy Information  

Open Energy Info (EERE)

GEADevelopmentPhase GEADevelopmentPhase Jump to: navigation, search Property Name GEADevelopmentPhase Property Type Page Description GEA Development Phase, as characterized by their Annual U.S. Geothermal Power Production and Development Report. See GEA_Development_Phases Allows Values Phase I - Resource Procurement and Identification;Phase II - Resource Exploration and Confirmation;Phase III - Permitting and Initial Development;Phase IV - Resource Production and Power Plant Construction Subproperties This property has the following 77 subproperties: A Abraham Hot Springs Geothermal Area Adak Geothermal Area Akun Strait Geothermal Area Akutan Fumaroles Geothermal Area Alum Geothermal Area Alvord Hot Springs Geothermal Area Amedee Geothermal Area Arrowhead Hot Springs Geothermal Area

38

NETL: Carbon Storage - Regional Partnership Validation Phase (Phase II)  

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

Validation Phase (Phase II) Projects Validation Phase (Phase II) Projects The Regional Carbon Sequestration Partnerships' (RCSP) Validation Phase focuses on validating the most promising regional opportunities to deploy CCS technologies by building upon the accomplishments of the Characterization Phase. Two different CO2 storage approaches are being pursued in this phase: geologic and terrestrial carbon storage. The Validation Phase includes 20 geologic and 11 terrestrial CO2 storage projects. Efforts are being conducted to: Validate and refine current reservoir simulations for CO2 storage projects. Collect physical data to confirm CO2 storage potential and injectivity estimates. Demonstrate the effectiveness of monitoring, verification, and accounting (MVA) technologies. Develop guidelines for well completion, operations, and abandonment.

39

Instrumentation development for multi-dimensional two-phase flow modeling  

SciTech Connect (OSTI)

A multi-faceted instrumentation approach is described which has played a significant role in obtaining fundamental data for two-phase flow model development. This experimental work supports the development of a three-dimensional, two-fluid, four field computational analysis capability. The goal of this development is to utilize mechanistic models and fundamental understanding rather than rely on empirical correlations to describe the interactions in two-phase flows. The four fields (two dispersed and two continuous) provide a means for predicting the flow topology and the local variables over the full range of flow regimes. The fidelity of the model development can be verified by comparisons of the three-dimensional predictions with local measurements of the flow variables. Both invasive and non-invasive instrumentation techniques and their strengths and limitations are discussed. A critical aspect of this instrumentation development has been the use of a low pressure/temperature modeling fluid (R-134a) in a vertical duct which permits full optical access to visualize the flow fields in all two-phase flow regimes. The modeling fluid accurately simulates boiling steam-water systems. Particular attention is focused on the use of a gamma densitometer to obtain line-averaged and cross-sectional averaged void fractions. Hot-film anemometer probes provide data on local void fraction, interfacial frequency, bubble and droplet size, as well as information on the behavior of the liquid-vapor interface in annular flows. A laser Doppler velocimeter is used to measure the velocity of liquid-vapor interfaces in bubbly, slug and annular flows. Flow visualization techniques are also used to obtain a qualitative understanding of the two-phase flow structure, and to obtain supporting quantitative data on bubble size. Examples of data obtained with these various measurement methods are shown.

Kirouac, G.J.; Trabold, T.A.; Vassallo, P.F.; Moore, W.E.; Kumar, R. [Lockheed Martin Corp., Schenectady, NY (United States)

1999-06-01T23:59:59.000Z

40

EDS Coal Liquefaction Process Development. Phase V. Laboratory evaluation of the characteristics of EDS Illinois bottoms  

SciTech Connect (OSTI)

This interim report documents work carried out by Combustion Engineering, Inc. under a contract to Exxon Research and Engineering Company to develop a conceptual Hybrid Boiler design fueled by the vacuum distillation residue (vacuum bottoms) derived from Illinois No. 6 coal in the EDS Coal Liquefaction Process. This report was prepared by Combustion Engineering, Inc., and is the first of two reports on the predevelopment phase of the Hybrid Boiler program. This report covers the results of a laboratory investigation to assess the fuel and ash properties of EDS vacuum bottoms. The results of the laboratory testing reported here were used in conjunction with Combustion Engineering's design experience to predict fuel performance and to develop appropriate boiler design parameters. These boiler design parameters were used to prepare the engineering design study reported in EDS Interim Report FE-2893-113, the second of the two reports on the predevelopment phase of the Hybrid Boiler Program. 46 figures, 29 tables.

Lao, T C; Levasseur, A A

1984-02-01T23:59:59.000Z

Note: This page contains sample records for the topic "development phase phase" 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

Membrane/distillation hybrid process research and development. Final report, phase II  

SciTech Connect (OSTI)

This report covers work conducted under the grant awarded to BP by DOE in late 1991 entitled {open_quotes}Membrane/Distillation Hybrid Process Research and Development.{close_quotes} The program was directed towards development and commercialization of the BP process for separation of vapor phase olefins from non-olefins via facilitated transport using an aqueous facilitator. The program has come to a very successful conclusion, with formation of a partnership between BP and Stone and Webster Engineering Corporation (SWEC) to market and commercialize the technology. The focus of this report is the final portion of the program, during which engineering re-design, facilitator optimization, economic analysis, and marketing have been the primary activities. At the end of Phase II BP was looking to partner with an engineering firm to advance the selective olefin recovery (SOR) technology from the lab/demo stage to full commercialization. In August 1995 BP and SWEC reached an agreement to advance the technology by completing additional Phase III work with DOE and beginning marketing activities.

Mazanec, T.J.

1997-07-01T23:59:59.000Z

42

Development of an electrical impedance computed tomographic two-phase flows analyzer. Annual technical report for program renewal  

SciTech Connect (OSTI)

This progress report details the theoretical development, numerical results, experimental design (mechanical), experimental design (electronic), and experimental results for the research program for the development of an electrical impedance computed tomographic two-phase flow analyzer.

Jones, O.C.

1993-05-01T23:59:59.000Z

43

DESIGN AND DEVELOPMENT OF GAS-LIQUID CYLINDRICAL CYCLONE COMPACT SEPARATORS FOR THREE-PHASE FLOW  

SciTech Connect (OSTI)

This report presents a brief overview of the activities and tasks accomplished during the second half year (April 1, 2001-September 30, 2001) of the fourth project year budget period (October 1, 2000-September 30, 2001). An executive summary is presented initially followed by the tasks of the current budget period. Then, detailed description of the experimental and modeling investigations are presented. Subsequently, the technical and scientific results of the activities of this project period are presented with some discussions. The findings of this investigation are summarized in the ''Conclusions'' section followed by relevant references. The fourth project year activities are divided into three main parts, which are carried out in parallel. The first part is continuation of the experimental program that includes a study of the oil/water two-phase behavior at high pressures and control system development for the three-phase GLCC{copyright}. This investigation will be eventually extended for three-phase flow. The second part consists of the development of a simplified mechanistic model incorporating the experimental results and behavior of dispersion of oil in water and water in oil. This will provide an insight into the hydrodynamic flow behavior and serve as the design tool for the industry. Although useful for sizing GLCC{copyright} for proven applications, the mechanistic model will not provide detailed hydrodynamic flow behavior information needed to screen new geometric variations or to study the effect of fluid property variations. Therefore, in the third part, the more rigorous approach of computational fluid dynamics (CFD) will be utilized. Multidimensional multiphase flow simulation at high pressures and for real crude conditions will provide much greater depth into the understanding of the physical phenomena and the mathematical analysis of three-phase GLCC{copyright} design and performance.

Dr. Ram S. Mohan; Dr. Ovadia Shoham

2001-10-30T23:59:59.000Z

44

DESIGN AND DEVELOPMENT OF GAS-LIQUID CYLINDRICAL CYCLONE COMPACT SEPARATORS FOR THREE-PHASE FLOW  

SciTech Connect (OSTI)

This report presents a brief overview of the activities and tasks accomplished during the first half year (October 1, 2000-March 31, 2001) of the fourth project year budget period (October 1, 2000-September 30, 2001). An executive summary is presented initially followed by the tasks of the current budget period. Then, detailed description of the experimental and modeling investigations are presented. Subsequently, the technical and scientific results of the activities of this project period are presented with some discussions. The findings of this investigation are summarized in the ''Conclusions'' section followed by relevant references. The fourth project year activities are divided into three main parts, which are carried out in parallel. The first part is continuation of the experimental program that includes a study of the oil/water two-phase behavior at high pressures and control system development for the three-phase GLCC{copyright}. This investigation will be eventually extended for three-phase flow. The second part consists of the development of a simplified mechanistic model incorporating the experimental results and behavior of dispersion of oil in water and water in oil. This will provide an insight into the hydrodynamic flow behavior and serve as the design tool for the industry. Although useful for sizing GLCC{copyright} for proven applications, the mechanistic model will not provide detailed hydrodynamic flow behavior information needed to screen new geometric variations or to study the effect of fluid property variations. Therefore, in the third part, the more rigorous approach of computational fluid dynamics (CFD) will be utilized. Multidimensional multiphase flow simulation at high pressures and for real crude conditions will provide much greater depth into the understanding of the physical phenomena and the mathematical analysis of three-phase GLCC{copyright} design and performance.

Dr. Ram S. Mohan; Dr. Ovadia Shoham

2001-04-30T23:59:59.000Z

45

Sodium-sulfur battery development. Phase VB final report, October 1, 1981--February 28, 1985  

SciTech Connect (OSTI)

This report describes the technical progress made under Contract No. DE-AM04-79CH10012 between the U.S. Department of Energy, Ford Aerospace & Communications Corporations and Ford Motor Company, for the period 1 October 1981 through 28 February 1985, which is designated as Phase VB of the Sodium-Sulfur Battery Development Program. During this period, Ford Aerospace held prime technical responsibility and Ford Motor Company carried out supporting research. Ceramatec, Inc., was a major subcontractor to Ford Aerospace for electrolyte development and production.

NONE

1985-04-01T23:59:59.000Z

46

Development of Zinc/Bromine Batteries for Load-Leveling Applications: Phase 1 Final Report  

SciTech Connect (OSTI)

The Zinc/Bromine Load-Leveling Battery Development contract (No. 40-8965) was partitioned at the outset into two phases of equal length. Phase 1 started in September 1990 and continued through December 1991. In Phase 1, zinc/bromine battery technology was to be advanced to the point that it would be clear that the technology was viable and would be an appropriate choice for electric utilities wishing to establish stationary energy-storage facilities. Criteria were established that addressed most of the concerns that had been observed in the previous development efforts. The performances of 8-cell and 100-cell laboratory batteries demonstrated that the criteria were met or exceeded. In Phase 2, 100-kWh batteries will be built and demonstrated, and a conceptual design for a load-leveling plant will be presented. At the same time, work will continue to identify improved assembly techniques and operating conditions. This report details the results of the efforts carried out in Phase 1. The highlights are: (1) Four 1-kWh stacks achieved over 100 cycles, One l-kWh stack achieved over 200 cycles, One 1-kWh stack achieved over 300 cycles; (2) Less than 10% degradation in performance occurred in the four stacks that achieved over 100 cycles; (3) The battery used for the zinc loading investigation exhibited virtually no loss in performance for loadings up to 130 mAh/cm{sup 2}; (4) Charge-current densities of 50 ma/cm{sup 2} have been achieved in minicells; (5) Fourteen consecutive no-strip cycles have been conducted on the stack with 300+ cycles; (6) A mass and energy balance spreadsheet that describes battery operation was completed; (7) Materials research has continued to provide improvements in the electrode, activation layer, and separator; and (8) A battery made of two 50-cell stacks (15 kWh) was produced and delivered to Sandia National Laboratories (SNL) for testing. The most critical development was the ability to assemble a battery stack that remained leak free. The task of sealing the battery stack using vibration welding has undergone significant improvement resulting in a viable production process. Through several design iterations, a solid technology base for larger battery stack designs was established. Internal stack stresses can now be modeled, in addition to fluid velocity and fluid pressure distribution, through the use of a finite element analysis computer program. Additionally, the Johnson Controls Battery Group, Inc. (JCBGI) proprietary FORTRAN model has been improved significantly, enabling accurate performance predictions. This modeling was used to improve the integrity and performance of the battery stacks, and should be instrumental in reducing the turnaround time from concept to assembly.

Eidler, Phillip

1999-07-01T23:59:59.000Z

47

Phase-Transfer Catalysts  

Science Journals Connector (OSTI)

In previous chapters we learned that a phase-transfer catalyst must have two particular chemical functions to be successful, that is, it must rapidly transfer one of the reactant species into the normal phase ...

Charles M. Starks; Charles L. Liotta; Marc E. Halpern

1994-01-01T23:59:59.000Z

48

Development of Thermo-Regulating Fabric Using Phase Change Material (PCM).  

E-Print Network [OSTI]

?? This research study concentrates on use of phase change material (PCM) in textiles which can produce thermo-regulating characteristics to control body temperature useful for (more)

Bhatkhande, Prasad S.

2011-01-01T23:59:59.000Z

49

Piecewise Linear Phase Transitions  

E-Print Network [OSTI]

It is shown how simple assumptions lead to piecewise linear behavior, which is observed in certain phase transitions.

Joseph B. Keller

2007-11-26T23:59:59.000Z

50

Multimedia Phase-Spaces  

Science Journals Connector (OSTI)

Dynamic phase-spaces are suggested as a way of designing and implementing interactive multimedia systems. A dynamic phase-space is a space of properties overlayed with dynamics. The space is decorated with multimedia resources such ... Keywords: catastrophe theory, dynamics, installation, interactive narrative, museums, phase-space

Peter Bgh Andersen

1998-05-01T23:59:59.000Z

51

Development of a generalized correlation for phase-velocity measurements obtained from impedance-probe pairs in two-phase flow systems. [PWR  

SciTech Connect (OSTI)

A flag type electrical impedance probe has been developed at the Oak Ridge National Lab (ORNL) to measure liquid- and vapor-phase velocities in steam-water mixtures flowing through rod bundles. Measurements are made by utilizing the probes in pairs, installed in line, parallel to the flow direction, and extending out into the flow channel. The present study addresses performance difficulties by examining from a fundamental point of view the two-phase flow system which the impedance probes typically operate in. Specifically, the governing equations (continuity, momentum, energy) were formulated for both air-water and steam-water systems, and then subjected to a scaling analysis. The scaling analysis yielded the appropriate dimensionless parameters of significance in both kinds of systems. Additionally, with the aid of experimental data obtained at ORNL, those parameters of significant magnitude were established. As a result, a generalized correlation was developed for liquid and vapor phase velocities that makes it possible to employ the impedance probe velocity measurement technique in a wide variety of test configurations and fluid combinations.

Hsu, C.T.; Keshock, E.G.; McGill, R.N.

1983-01-01T23:59:59.000Z

52

Phase II Final Report  

SciTech Connect (OSTI)

The SkyTrough DSP will advance the state-of-the-art in parabolic troughs for utility applications, with a larger aperture, higher operating temperature, and lower cost. The goal of this project was to develop a parabolic trough collector that enables solar electricity generation in the 2020 marketplace for a 216MWe nameplate baseload power plant. This plant requires an LCOE of 9/kWhe, given a capacity factor of 75%, a fossil fuel limit of 15%, a fossil fuel cost of $6.75/MMBtu, $25.00/kWht thermal storage cost, and a domestic installation corresponding to Daggett, CA. The result of our optimization was a trough design of larger aperture and operating temperature than has been fielded in large, utility scale parabolic trough applications: 7.6m width x 150m SCA length (1,118m2 aperture), with four 90mm diameter 4.7m receivers per mirror module and an operating temperature of 500C. The results from physical modeling in the System Advisory Model indicate that, for a capacity factor of 75%: The LCOE will be 8.87/kWhe. SkyFuel examined the design of almost every parabolic trough component from a perspective of load and performance at aperture areas from 500 to 2,900m2. Aperture-dependent design was combined with fixed quotations for similar parts from the commercialized SkyTrough product, and established an installed cost of $130/m2 in 2020. This project was conducted in two phases. Phase I was a preliminary design, culminating in an optimum trough size and further improvement of an advanced polymeric reflective material. This phase was completed in October of 2011. Phase II has been the detailed engineering design and component testing, which culminated in the fabrication and testing of a single mirror module. Phase II is complete, and this document presents a summary of the comprehensive work.

Schuknecht, Nate [Project Manager; White, David [Principle Investigator; Hoste, Graeme [Research Engineer

2014-09-11T23:59:59.000Z

53

Phase I of the Near Term Hybrid Passenger Vehicle Development Program. Final report  

SciTech Connect (OSTI)

The results of Phase I of the Near-Term Hybrid Vehicle Program are summarized. This phase of the program ws a study leading to the preliminary design of a 5-passenger hybrid vehicle utilizing two energy sources (electricity and gasoline/diesel fuel) to minimize petroleum usage on a fleet basis. This report presents the following: overall summary of the Phase I activity; summary of the individual tasks; summary of the hybrid vehicle design; summary of the alternative design options; summary of the computer simulations; summary of the economic analysis; summary of the maintenance and reliability considerations; summary of the design for crash safety; and bibliography.

Not Available

1980-10-01T23:59:59.000Z

54

Development and validation of a two-phase, three-dimensional model for PEM fuel cells.  

SciTech Connect (OSTI)

The objectives of this presentation are: (1) To develop and validate a two-phase, three-dimensional transport modelfor simulating PEM fuel cell performance under a wide range of operating conditions; (2) To apply the validated PEM fuel cell model to improve fundamental understanding of key phenomena involved and to identify rate-limiting steps and develop recommendations for improvements so as to accelerate the commercialization of fuel cell technology; (3) The validated PEMFC model can be employed to improve and optimize PEM fuel cell operation. Consequently, the project helps: (i) address the technical barriers on performance, cost, and durability; and (ii) achieve DOE's near-term technical targets on performance, cost, and durability in automotive and stationary applications.

Chen, Ken Shuang

2010-04-01T23:59:59.000Z

55

Phase 1 -- 2  

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

2 2 Revised 8/7/02 " "Sample Statement of Work - Standard Service Offerings for Contractor-Identified Project" "Task #","Task Title","Work Scope","Deliverable","Agency Requirements" " " "Phase Two - Initial Project Development" "2-1","DO RFP Development - Direct Support","Based upon interviews Agency/site staff and consultation support, FEMP Services will prepare DO RFP for Agency/site. FEMP Services will provide onsite or telecon review of draft DO RFP with agency staff. FEMP Services will prepare 2nd draft DO RFP based on telecon and written agency review comments and recommendations. ","Draft DO RFP Document. On-site review of draft DO RFP.

56

Phase 1 --2  

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

2 2 Rev 4-01-05 " "Statement of Work - Standard Service Offerings for Contractor-Identified Project at (insert project site)" "Task #","Task Title","Work Scope","Deliverable","Agency Requirements" " " "Phase Two - Initial Project Development" "2-1","DO RFP Development - Direct Support","Based upon interviews Agency/site staff and consultation support, FEMP Services will prepare DO RFP for Agency/site. FEMP Services will provide onsite or telecon review of draft DO RFP with agency staff. FEMP Services will prepare 2nd draft DO RFP based on telecon and written agency review comments and recommendations. ","Draft DO RFP Document. On-site review of draft DO RFP.

57

Development of building materials by using micro-encapsulated phase change material  

Science Journals Connector (OSTI)

Micro-encapsulated phase change material (Micro-PCM) could be used for ... thermal energy storage and also for PCM-building materials. Micro-PCM was prepared by in-situ ... ?m. The thermal fluctuation of PCM-buil...

See Hoon Lee; Sang Jun Yoon; Yong Gu Kim

2007-03-01T23:59:59.000Z

58

Holographic Magnetic Phase Transition  

E-Print Network [OSTI]

We study four-dimensional interacting fermions in a strong magnetic field, using the holographic Sakai-Sugimoto model of intersecting D4 and D8 branes in the deconfined, chiral-symmetric parallel phase. We find that as the magnetic field is varied, while staying in the parallel phase, the fermions exhibit a first-order phase transition in which their magnetization jumps discontinuously. Properties of this transition are consistent with a picture in which some of the fermions jump to the lowest Landau level. Similarities to known magnetic phase transitions are discussed.

Gilad Lifschytz; Matthew Lippert

2009-06-21T23:59:59.000Z

59

Degenerate Metric Phase Boundaries  

E-Print Network [OSTI]

The structure of boundaries between degenerate and nondegenerate solutions of Ashtekar's canonical reformulation of Einstein's equations is studied. Several examples are given of such "phase boundaries" in which the metric is degenerate on one side of a null hypersurface and non-degenerate on the other side. These include portions of flat space, Schwarzschild, and plane wave solutions joined to degenerate regions. In the last case, the wave collides with a planar phase boundary and continues on with the same curvature but degenerate triad, while the phase boundary continues in the opposite direction. We conjecture that degenerate phase boundaries are always null.

Ingemar Bengtsson; Ted Jacobson

1999-01-23T23:59:59.000Z

60

During Phase 3, WIPP  

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

UPDATE: April 14, 2014 Phase 3 activities begin Two teams re-entered the WIPP underground facility on Saturday, moving closer to suspected location of the February 14...

Note: This page contains sample records for the topic "development phase phase" 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

NGNP PHASE I REVIEW  

Energy Savers [EERE]

and start up operations of the prototype nuclear reactor and its associated hydrogen or electricity production facilities. Scope of Work for Review * Review Phase I reports in...

62

Partition of actinides and fission products between metal and molten salt phases: Theory, measurement, and application to IFR pyroprocess development  

SciTech Connect (OSTI)

The chemical basis of Integral Fast Reactor fuel reprocessing (pyroprocessing) is partition of fuel, cladding, and fission product elements between molten LiCl-KCl and either a solid metal phase or a liquid cadmium phase. The partition reactions are described herein, and the thermodynamic basis for predicting distributions of actinides and fission products in the pyroprocess is discussed. The critical role of metal-phase activity coefficients, especially those of rare earth and the transuranic elements, is described. Measured separation factors, which are analogous to equilibrium constants but which involve concentrations rather than activities, are presented. The uses of thermodynamic calculations in process development are described, as are computer codes developed for calculating material flows and phase compositions in pyroprocessing.

Ackerman, J.P.; Johnson, T.R.

1993-10-01T23:59:59.000Z

63

Development of a dedicated ethanol ultra-low emission vehicle (ULEV) -- Phase 2 report  

SciTech Connect (OSTI)

The objective of this 3.5-year project is to develop a commercially competitive vehicle powered by ethanol (or an ethanol blend) that can meet California`s ultra-low emission vehicle (ULEV) standards and equivalent corporate average fuel economy (CAFE) energy efficiency for a light-duty passenger car application. The definition of commercially competitive is independent of fuel cost, but does include technical requirements for competitive power, performance, refueling times, vehicle range, driveability, fuel handling safety, and overall emissions performance. This report summarizes the second phase of this project, which lasted 12 months. This report documents two baseline vehicles, the engine modifications made to the original equipment manufacturer (OEM) engines, advanced aftertreatment testing, and various fuel tests to evaluate the flammability, lubricity, and material compatibility of the ethanol fuel blends.

Dodge, L.G.; Bourn, G.; Callahan, T.J.; Naegeli, D.W.; Shouse, K.R.; Smith, L.R.; Whitney, K.A. [Southwest Research Inst., San Antonio, TX (United States)

1995-09-01T23:59:59.000Z

64

Water Use Optimization Toolset Project: Development and Demonstration Phase Draft Report  

SciTech Connect (OSTI)

This report summarizes the results of the development and demonstration phase of the Water Use Optimization Toolset (WUOT) project. It identifies the objective and goals that guided the project, as well as demonstrating potential benefits that could be obtained by applying the WUOT in different geo-hydrologic systems across the United States. A major challenge facing conventional hydropower plants is to operate more efficiently while dealing with an increasingly uncertain water-constrained environment and complex electricity markets. The goal of this 3-year WUOT project, which is funded by the U.S. Department of Energy (DOE), is to improve water management, resulting in more energy, revenues, and grid services from available water, and to enhance environmental benefits from improved hydropower operations and planning while maintaining institutional water delivery requirements. The long-term goal is for the WUOT to be used by environmental analysts and deployed by hydropower schedulers and operators to assist in market, dispatch, and operational decisions.

Gasper, John R. [Argonne National Laboratory] [Argonne National Laboratory; Veselka, Thomas D. [Argonne National Laboratory] [Argonne National Laboratory; Mahalik, Matthew R. [Argonne National Laboratory] [Argonne National Laboratory; Hayse, John W. [Argonne National Laboratory] [Argonne National Laboratory; Saha, Samrat [Argonne National Laboratory] [Argonne National Laboratory; Wigmosta, Mark S. [PNNL] [PNNL; Voisin, Nathalie [PNNL] [PNNL; Rakowski, Cynthia [PNNL] [PNNL; Coleman, Andre [PNNL] [PNNL; Lowry, Thomas S. [SNL] [SNL

2014-05-19T23:59:59.000Z

65

Development of a dedicated ethanol ultra-low-emissions vehicle (ULEV): Phase 3 report  

SciTech Connect (OSTI)

The objective of the 3.5 year project discussed in this report was to develop a commercially competitive vehicle powered by ethanol (or an ethanol blend) that can meet California`s Ultra Low Emissions Vehicle (ULEV) standards and equivalent Corporate Average Fuel Economy (CAFE) energy efficiency for a light duty passenger car application. This particular report summarizes the third phase of the project, which lasted 12 months. Emissions tests were conducted with advanced after-treatment devices on one of the two, almost identical, test vehicles, a 1993 Ford Taurus flexible fuel vehicle. The report also covers tests on the engine removed from the second Taurus vehicle. This engine was modified for an increased compression ratio, fitted with air assist injectors, and included an advanced engine control system with model-based control.

Dodge, L.; Callahan, T.; Leone, D.; Naegeli, D.; Shouse, K.; Smith, L.; Whitney, K. [Southwest Research Inst., San Antonio, TX (United States)] [Southwest Research Inst., San Antonio, TX (United States)

1998-04-01T23:59:59.000Z

66

A Phase Odyssey  

SciTech Connect (OSTI)

We are introduced to the effects of phase from the earliest days of our childhood, from the nursery rhyme above (or its less verbose for 'Twinkle, Twinkle Little Star') to the shimmer over a hot road and the network of bright lines at the bottom of a swimming pool. These are all manifestations of phase. And there are many more.

Nugent, K.A.; Paganin, D.; Gureyev, T.E. (Melbourne)

2009-01-06T23:59:59.000Z

67

The Numerical Simulation on Cooling Effect of Microcapsulated Phase Change Material Suspension in Laminar Thermal Developing Section  

Science Journals Connector (OSTI)

The microcapsulated phase change material (MEPCM) suspension has obtained more and ... concerning MECPM suspension are generally reduced to single-phase models. In this paper, a novel two-phase model is construct...

P. Q. Liu; J. Jin; G. P. Lin

2009-01-01T23:59:59.000Z

68

ARM - Measurement - Hydrometeor phase  

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

phase phase ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Measurement : Hydrometeor phase Hydrometeor phase such as liquid ice or mixed phase Categories Cloud Properties Instruments The above measurement is considered scientifically relevant for the following instruments. Refer to the datastream (netcdf) file headers of each instrument for a list of all available measurements, including those recorded for diagnostic or quality assurance purposes. Value-Added Products VISST : Minnis Cloud Products Using Visst Algorithm (Process) VISSTPX04G08V2MINNIS : VISST-derived pixel-level products from satellite GOES8, version 2 VISSTPX04G08V3MINNIS : VISST-derived pixel-level products from satellite GOES8, version 3

69

Phase-Transfer-Catalyzed Reductions  

Science Journals Connector (OSTI)

Phase-transfer catalysis (PTC) procedures that have been developed for use with sodium borohydride, lithium aluminum hydride, and several other reducing agents involving anion transfer to organic media are des...

Charles M. Starks; Charles L. Liotta; Marc E. Halpern

1994-01-01T23:59:59.000Z

70

Phase-Change Frame Walls (PCFWs) for On-Peak Demand Reduction and Energy Conservation in Residential Buildings: Development, Construction and Evaluation  

E-Print Network [OSTI]

macroencapsulated phase-change materials (PCMs), incorporated therein, was developed, constructed, and evaluated. This prototype wall is referred to as - phase-change frame wall (PCFW). A PCFW is a typical frame wall, consisting of outside siding, thermal insulation...

Zhang, M.; Medina, M. A.; King, J. B.

2004-01-01T23:59:59.000Z

71

Phase 1 -- 4  

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

4" 4" "Statement of Work - Optional Service Offerings for Contractor-Identified Project" "Task #","Task Title","Work Scope","Deliverable","Agency Requirements" " " "Phase Two - Initial Project Development" "Replace Std Task# 2-1","DO RFP Development - On Site Consultation","FEMP Services will provide technical consultation resources at the Agency's site to assist in the integration of the site's requirements into the DO RFP template.","Oral Comments","Agency staff will draft DO RFP. Provide copies to FEMP Services staff for review." "Phase Three - Negotiations and Award" "Replace Std Task# 3-4","Final Proposal Review - Direct Support","FEMP Services will provide direct technical resources to review final proposal. Review will include assessment of ESPC-unique data such as markups, performance period expenses, and financing interest rates. FEMP Services will assure that price schedules have been filled out correctly. ESCO specified equipment will be evaluated for its appropriateness and installation expense (labor and material). FEMP Services will coordinate and assemble agency and FEMP Services questions and issues for Agency CO to be presented to ESCO for discussions and negotiations. ","Telecon Advice and Written comments and recommendations","Agency will provide FEMP Services staff copies of final proposal with emphasis on selected equipment compatibility with agency performance requirements. Agency shall ensure applicable acquisition team members review final proposal. Agency will generate site questions or issues prior to scheduled telecons with FEMP Services staff. Agency will review questions and issues for ESCO discussions. Agency CO will submit questions and issues to ESCO."

72

PHASE II CALDERON PROCESS TO PRODUCE DIRECT REDUCED IRON RESEARCH AND DEVELOPMENT PROJECT  

SciTech Connect (OSTI)

This project was initially targeted to the making of coke for blast furnaces by using proprietary technology of Calderon in a phased approach, and Phase I was successfully completed. The project was then re-directed to the making of iron units. U.S. Steel teamed up with Calderon for a joint effort which will last 30 months to produce directly reduced iron with the potential of converting it into molten iron or steel consistent with the Roadmap recommendations of 1998 prepared by the Steel Industry in cooperation with the Department of Energy.

Albert Calderon

2003-04-28T23:59:59.000Z

73

Phase I of the Near-Term Hybrid Passenger-Vehicle Development Program. Final report  

SciTech Connect (OSTI)

Heat engine/electric hybrid vehicles offer the potential of greatly reduced petroleum consumption, compared to conventional vehicles, without the disadvantages of limited performance and operating range associated with purely electric vehicles. This report documents a hybrid-vehicle design approach which is aimed at the development of the technology required to achieve this potential - in such a way that it is transferable to the auto industry in the near term. The development of this design approach constituted Phase I of the Near-Term Hybrid-Vehicle Program. The major tasks in this program were: (1) Mission Analysis and Performance Specification Studies; (2) Design Tradeoff Studies; and (3) Preliminary Design. Detailed reports covering each of these tasks are included as appendices to this report and issued under separate cover; a fourth task, Sensitivity Studies, is also included in the report on the Design Tradeoff Studies. Because of the detail with which these appendices cover methodology and both interim and final results, the body of this report was prepared as a brief executive summary of the program activities and results, with appropriate references to the detailed material in the appendices.

Not Available

1980-10-01T23:59:59.000Z

74

Microwave concrete decontamination - Phase II results  

SciTech Connect (OSTI)

This report documents the results of the second phase of a four-phase development program to develop a system to decontaminate concrete using microwave energy. In the first phase of the program the feasibility of using microwaves to remove concrete surfaces was demonstrated. In the first phase experiments, concrete slabs were placed on a translator and moved beneath a stationery microwave system. The second phase demonstrated the ability to mobilize the technology to remove the surfaces from concrete floors. Phases III and IV will further develop the technology to be remotely operated and capable of removing concrete from floors as well as from vertical surfaces.

White, T.L.; Foster, D. Jr.

1994-06-01T23:59:59.000Z

75

Phasing tiny crystals  

Science Journals Connector (OSTI)

For tiny crystals, their diffraction intensities at and between the Bragg peaks become measurable due to the limited number of the unit cells, which can in principle be used to directly phase the crystal structures.

Miao, J.

2013-12-31T23:59:59.000Z

76

Sliding Luttinger liquid phases  

Science Journals Connector (OSTI)

We study systems of coupled spin-gapped and gapless Luttinger liquids. First, we establish the existence of a sliding Luttinger liquid phase for a system of weakly coupled parallel quantum wires, with and without disorder. It is shown that the coupling can stabilize a Luttinger liquid phase in the presence of disorder. We then extend our analysis to a system of crossed Luttinger liquids and establish the stability of a non-Fermi-liquid state: the crossed sliding Luttinger liquid phase. In this phase the system exhibits a finite-temperature, long-wavelength, isotropic electric conductivity that diverges as a power law in temperature T as T?0. This two-dimensional system has many properties of a true isotropic Luttinger liquid, though at zero temperature it becomes anisotropic. An extension of this model to a three-dimensional stack exhibits a much higher in-plane conductivity than the conductivity in a perpendicular direction.

Ranjan Mukhopadhyay; C. L. Kane; T. C. Lubensky

2001-07-09T23:59:59.000Z

77

DESIGN AND DEVELOPMENT OF GAS-LIQUID CYLINDRICAL CYCLONE COMPACT SEPARATORS FOR THREE-PHASE FLOW  

SciTech Connect (OSTI)

The U.S. Department of Energy (DOE) has awarded a five-year (1997-2002) grant (Mohan and Shoham, DE-FG26-97BC15024, 1997) to The University of Tulsa, to develop compact multiphase separation components for 3-phase flow. The research activities of this project have been conducted through cost sharing by the member companies of the Tulsa University Separation Technology Projects (TUSTP) research consortium and the Oklahoma Center for the Advancement of Science and Technology (OCAST). As part of this project, several individual compact separation components have been developed for onshore and offshore applications. These include gas-liquid cylindrical cyclones (GLCC{copyright}), liquid-liquid cylindrical cyclones (LLCC{copyright}), and the gas-liquid-liquid cylindrical cyclones (GLLCC{copyright}). A detailed study has also been completed for the liquid-liquid hydrocyclones (LLHC). Appropriate control strategies have been developed for proper operation of the GLCC{copyright} and LLCC{copyright}. Testing of GLCC{copyright} at high pressure and real crude conditions for field applications is also completed. Limited studies have been conducted on flow conditioning devices to be used upstream of the compact separators for performance improvement. This report presents a brief overview of the activities and tasks accomplished during the 5-year project period, October 1, 1997-March 31, 2003 (including the no-cost extended period of 6 months). An executive summary is presented initially followed by the tasks of the 5-year budget periods. Then, detailed description of the experimental and modeling investigations are presented. Subsequently, the technical and scientific results of the activities of this project period are presented with some discussions. The findings of this investigation are summarized in the ''Conclusions'' section, followed by relevant references. The publications resulting from this study in the form of MS Theses, Ph.D. Dissertation, Journal Papers and Conference Presentations are provided at the end of this report.

Dr. Ram S. Mohan; Dr. Ovadia Shoham

2003-06-25T23:59:59.000Z

78

Phase equilibrium studies  

SciTech Connect (OSTI)

A phase equilibrium model has been developed for the SRC-I process, as well as the other coal liquefaction processes. It is applicable to both vapor/liquid and liquid/liquid equilibria; it also provides an approximate but adequate description of aqueous mixtures where the volatile electrolyte components dissociate to form ionic species. This report completes the description of the model presented in an earlier report (Mathias and Stein, 1983a). Comparisons of the model to previously published data on coal-fluid mixtures are presented. Further, a preliminary analysis of new data on SRC-I coal fluids is presented. Finally, the current capabilities and deficiencies of the model are discussed. 25 references, 17 figures, 30 tables.

Mathias, P.M.; Stein, F.P.

1983-09-01T23:59:59.000Z

79

Science Learning+: Phase 1 projects Science Learning+  

E-Print Network [OSTI]

Science Learning+: Phase 1 projects Science Learning+ Phase 1 projects 2 December 2014 #12..............................................................................................................4 Youth access and equity in informal science learning: developing a research and practice agenda..................................................................................................5 Enhancing informal learning through citizen science..............................................6

Rambaut, Andrew

80

Phase II Calderon Process to Produce Direct Reduced Iron Research and Development Project  

SciTech Connect (OSTI)

This project was initially targeted to the making of coke for blast furnaces by using proprietary technology of Calderon in a phased approach, and Phase 1 was successfully completed. The project was then re-directed to the making of iron units. In 2000, U.S. Steel teamed up with Calderon for a joint effort to produce directly reduced iron with the potential of converting it into molten iron or steel consistent with the Roadmap recommendations of 1998 prepared by the Steel Industry in cooperation with the Department of Energy by using iron ore concentrate and coal as raw materials, both materials being appreciably lower in cost than using iron pellets, briquettes, sinter and coke.

Albert Calderon

2007-03-31T23:59:59.000Z

Note: This page contains sample records for the topic "development phase phase" 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

PHASE II CALDERON PROCESS TO PRODUCE DIRECT REDUCED IRON RESEARCH AND DEVELOPMENT PROJECT  

SciTech Connect (OSTI)

This project was initially targeted to the making of coke for blast furnaces by using proprietary technology of Calderon in a phased approach, and Phase I was successfully completed. The project was then re-directed to the making of iron units. In 2000, U.S. Steel teamed up with Calderon for a joint effort which will last 42 months to produce directly reduced iron with the potential of converting it into molten iron or steel consistent with the Roadmap recommendations of 1998 prepared by the Steel Industry in cooperation with the Department of Energy by using iron ore concentrate and coal as raw materials, both materials being appreciably lower in cost than using iron pellets and coke.

Albert Calderon

2004-10-28T23:59:59.000Z

82

Demonology in Ancient Egypt History and Developments during the Later Phases of Pharaonic History and the Greco-Roman  

E-Print Network [OSTI]

Demonology in Ancient Egypt History and Developments during the Later Phases of Pharaonic History and the Greco-Roman Period. Rita Lucarelli In this paper the meaning and function of demons in ancient Egypt have been outlined and a few central issues concerning demonology of Pharaonic and Greco-Roman Egypt

Qian, Ning

83

Enertech 15-kW wind-system development. Phase II. Fabrication and test  

SciTech Connect (OSTI)

This Phase II report presents a description of the Enertech 15 kW prototype wind system hardware fabrication; results of component tests; and results of preliminary testing conducted at Norwich, VT and the RF Wind Energy Research Center. In addition, the assembly sequence is documented. During testing, the unit experienced several operational problems, but testing proved the design concept and demonstrated the system's ability to meet the contract design specifications for power output.

Zickefoose, C.R.

1982-12-01T23:59:59.000Z

84

EDS coal liquefaction process development: Phase V. Final technical progress report, Volume I  

SciTech Connect (OSTI)

All objectives in the EDS Cooperative Agreement for Phases III-B through V have been achieved for the RCLU pilot plants. EDS operations have been successfully demonstrated in both the once-through and bottoms recycle modes for coals of rank ranging from bituminous to lignitic. An extensive data base detailing the effects of process variable changes on yields, conversions and product qualities for each coal has been established. Continuous bottoms recycle operations demonstrated increased overall conversion and improved product slate flexibility over once-through operations. The hydrodynamics of the liquefaction reactor in RCLU were characterized through tests using radioactive tracers in the gas and slurry phases. RCLU was shown to have longer liquid residence times than ECLP. Support work during ECLP operations contributed to resolving differences between ECLP conversions and product yields and those of the small pilot plants. Solvent hydrogenation studies during Phases IIIB-V of the EDS program focused on long term activity maintenance of the Ni-MO-10 catalyst. Process variable studies for solvents from various coals (bituminous, subbituminous, and lignitic), catalyst screening evaluations, and support of ECLP solvent hydrogenation operations. Product quality studies indicate that highly cyclic EDS naphthas represent unique and outstanding catalytic reforming feedstocks. High volumes of high octane motor gasoline blendstock are produced while liberating a considerable quantity of high purity hydrogen.

None

1984-02-01T23:59:59.000Z

85

Development of a direct-injected natural gas engine system for heavy-duty vehicles: Final report phase 2  

SciTech Connect (OSTI)

This report summarizes the results of Phase 2 of this contract. The authors completed four tasks under this phase of the subcontract. (1) They developed a computational fluid dynamics (CFD) model of a 3500 direct injected natural gas (DING) engine gas injection/combustion system and used it to identify DING ignition/combustion system improvements. The results were a 20% improvement in efficiency compared to Phase 1 testing. (2) The authors designed and procured the components for a 3126 DING engine (300 hp) and finished assembling it. During preliminary testing, the engine ran successfully at low loads for approximately 2 hours before injector tip and check failures terminated the test. The problems are solvable; however, this phase of the program was terminated. (3) They developed a Decision & Risk Analysis model to compare DING engine technology with various other engine technologies in a number of commercial applications. The model shows the most likely commercial applications for DING technology and can also be used to identify the sensitivity of variables that impact commercial viability. (4) MVE, Inc., completed a preliminary design concept study that examines the major design issues involved in making a reliable and durable 3,000 psi LNG pump. A primary concern is the life of pump seals and piston rings. Plans for the next phase of this program (Phase 3) have been put on indefinite hold. Caterpillar has decided not to fund further DING work at this time due to limited current market potential for the DING engine. However, based on results from this program, the authors believe that DI natural gas technology is viable for allowing a natural gas-fueled engine to achieve diesel power density and thermal efficiency for both the near and long terms.

Cox, G.B.; DelVecchio, K.A.; Hays, W.J.; Hiltner, J.D.; Nagaraj, R.; Emmer, C.

2000-03-02T23:59:59.000Z

86

Advanced Envelope Research for Factory Built Housing, Phase 3...  

Energy Savers [EERE]

Advanced Envelope Research for Factory Built Housing, Phase 3-Design Development and Prototyping Advanced Envelope Research for Factory Built Housing, Phase 3-Design Development...

87

Viscosity near phase transitions  

E-Print Network [OSTI]

Probably the most enticing observation in theoretical physics during the last decade was the discovery of the great amount of consequences obtained from the AdS/CFT conjecture put forward by Maldacena. In this work we review how this correspondence can be used to address hydrodynamic properties such as the viscosity of some strongly interacting systems. We also employ the Boltzmann equation for those systems closer to low-energy QCD, and argue that this kind of transport coefficients can be related to phase transitions, in particular the QGP/hadronic phase transition studied in heavy ion collisions.

Antonio Dobado; Felipe J. Llanes-Estrada; Juan M. Torres-Rincon

2010-09-30T23:59:59.000Z

88

Linear phase compressive filter  

DOE Patents [OSTI]

A phase linear filter for soliton suppression is in the form of a laddered series of stages of non-commensurate low pass filters with each low pass filter having a series coupled inductance (L) and a reverse biased, voltage dependent varactor diode, to ground which acts as a variable capacitance (C). L and C values are set to levels which correspond to a linear or conventional phase linear filter. Inductance is mapped directly from that of an equivalent nonlinear transmission line and capacitance is mapped from the linear case using a large signal equivalent of a nonlinear transmission line.

McEwan, Thomas E. (Livermore, CA)

1995-01-01T23:59:59.000Z

89

Stress development and shape change during press-hardening process using phase-transformation-based finite element analysis  

Science Journals Connector (OSTI)

Abstract Elastically driven shape change, or springback, in a press-hardened U-channel part made from a tailor-welded blank (TWB) was simulated using a fully coupled thermo-mechanicalmetallurgical finite element (FE) method. The TWB consists of boron steel and high-strength low-alloy steel, which have significantly different hardenabilities. A combined implicitexplicit three-step simulation consisting of air cooling, forming and die quenching, and springback was used for computational efficiency. All the required material models such as the modified phase-transformation kinetics and phase-transformation-related stress-update scheme were implemented in the FE software ABAQUS with the user-defined subroutines UMAT, VUMAT, and HETVAL. The developed FE procedure, including the material models, satisfactorily predicted the experimentally measured shape changes of the TWB part. Here we present an in-depth analysis of the residual stress development during forming and die quenching using different material modeling schemes. It should be noted that the stress evolution of the two materials with high and low hardenabilities were significantly different depending on the phase transformation kinetics during forming and quenching. Moreover, in order to enhance the prediction capability of the press-hardening simulations, it was essential to include the phase-transformation-related strains in the material model.

H.H. Bok; J.W. Choi; D.W. Suh; M.G. Lee; F. Barlat

2014-01-01T23:59:59.000Z

90

Efficient Phase-Change Materials: Development of a Low-Cost Thermal Energy Storage System Using Phase-Change Materials with Enhanced Radiation Heat Transfer  

SciTech Connect (OSTI)

HEATS Project: USF is developing low-cost, high-temperature phase-change materials (PCMs) for use in thermal energy storage systems. Heat storage materials are critical to the energy storage process. In solar thermal storage systems, heat can be stored in these materials during the day and released at nightwhen the sun is not outto drive a turbine and produce electricity. In nuclear storage systems, heat can be stored in these materials at night and released to produce electricity during daytime peak-demand hours. Most PCMs do not conduct heat very well. Using an innovative, electroless encapsulation technique, USF is enhancing the heat transfer capability of its PCMs. The inner walls of the capsules will be lined with a corrosion-resistant, high-infrared emissivity coating, and the absorptivity of the PCM will be controlled with the addition of nano-sized particles. USFs PCMs remain stable at temperatures from 600 to 1,000C and can be used for solar thermal power storage, nuclear thermal power storage, and other applications.

None

2011-12-05T23:59:59.000Z

91

Berry Phase Quantum Thermometer  

E-Print Network [OSTI]

We show how Berry phase can be used to construct an ultra-high precision quantum thermometer. An important advantage of our scheme is that there is no need for the thermometer to acquire thermal equilibrium with the sample. This reduces measurement times and avoids precision limitations.

Martin-Martinez, E; Mann, R B; Fuentes, I

2011-01-01T23:59:59.000Z

92

Berry Phase Quantum Thermometer  

E-Print Network [OSTI]

We show how Berry phase can be used to construct an ultra-high precision quantum thermometer. An important advantage of our scheme is that there is no need for the thermometer to acquire thermal equilibrium with the sample. This reduces measurement times and avoids precision limitations.

E. Martin-Martinez; A. Dragan; R. B. Mann; I. Fuentes

2013-05-28T23:59:59.000Z

93

PHASE CHANGE LIQUIDS  

SciTech Connect (OSTI)

Work is being performed to develop a new shipping system for frozen environmental samples (or other materials) that uses an optimal phase change liquid (PCL) formulation and an insulated shipping container with an on-board digital temperature data logger to provide a history of the temperature profile within the container during shipment. In previous work, several PCL formulations with temperatures of fusion ranging from approximately -14 to -20 C were prepared and evaluated. Both temperature of fusion and heat of fusion of the formulations were measured, and an optimal PCL formulation was selected. The PCL was frozen in plastic bags and tested for its temperature profile in a cooler using a digital temperature data logger. This testing showed that the PCL formulation can maintain freezer temperatures (< -7 to -20 C) for an extended period, such as the time for shipping samples by overnight courier. The results of the experiments described in this report provide significant information for use in developing an integrated freezer system that uses a PCL formulation to maintain freezer temperatures in coolers for shipping environmental samples to the laboratory. Experimental results show the importance of the type of cooler used in the system and that use of an insulating material within the cooler improves the performance of the freezer system. A new optimal PCL formulation for use in the system has been determined. The new formulation has been shown to maintain temperatures at < -7 to -20 C for 47 hours in an insulated cooler system containing soil samples. These results are very promising for developing the new technology.

Susan S. Sorini; John F. Schabron

2006-03-01T23:59:59.000Z

94

Molten Salt Coal Gasification Process Development Unit. Phase 2. Quarterly technical progress report No. 2, October-December 1980  

SciTech Connect (OSTI)

This represents the second quarterly progress report on Phase 2 of the Molten Salt Coal Gasification Process Development Unit (PDU) Program. Phase 1 of this program started in March 1976 and included the design, construction, and initial operation of the PDU. On June 25, 1980, Phase 2 of the program was initiated. It covers a 1-year operations program utilizing the existing PDU and is planned to include five runs with a targeted total operating time of 9 weeks. During this report period, Run 6, the initial run of the Phase 2 program was completed. The gasification system was operated for a total of 95 h at pressures up to 10 atm. Average product gas HHV values of 100 Btu/scf were recorded during 10-atm operation, while gasifying coal at a rate of 1100 lb/h. The run was terminated when the melt overflow system plugged after 60 continuous hours of overflow. Following this run, melt withdrawal system revisions were made, basically by changing the orifice materials from Monofrax to an 80 Cobalt-20 Chromium alloy. By the end of the report period, the PDU was being prepared for Run 7.

Not Available

1981-01-20T23:59:59.000Z

95

Progress in the development of phase-sensitive neutron reflectometry methods.  

SciTech Connect (OSTI)

It has been a number of years since phase-sensitive specular neutron reflectometry (PSNR) methods employing reference layers were first introduced to help remove the ambiguity inherent in the reconstruction of scattering length density (SLD) depth profiles (Majkrzak, C. F.; Berk, N. F. Physica B 2003, 336, 27) from specular reflectivity measurements. Although a number of scientific applications of PSNR techniques have now been successfully realized (Majkrzak, C. F.; Berk, N. F.; Perez-Salas, U. A. Langmuir 2003, 19, 7796 and references therein), in certain cases practical difficulties remain. In this article, we describe possible solutions to two specific problems: (1) the need for explicit, detailed knowledge of the SLD profile of a given reference layer of finite thickness; and (2) for a reference layer of finite thickness in which only two density variations are possible, how to identify which of two mathematical solutions corresponds to the true physical structure.

Majkrzak, C. F.; Berk, N. F.; Kienzle, P.; Perez-Salas, U. (Materials Science Division); (NIST Center for Neutron Research)

2009-01-01T23:59:59.000Z

96

Gas-Phase Molecular Dynamics  

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

Gas-Phase Molecular Dynamics Gas-Phase Molecular Dynamics The Gas-Phase Molecular Dynamics Group is dedicated to developing and applying spectroscopic and theoretical tools to challenging problems in chemical physics related to reactivity, structure, dynamics and kinetics of transient species. Recent theoretical work has included advances in exact variational solution of vibrational quantum dynamics, suitable for up to five atoms in systems where large amplitude motion or multiple strongly coupled modes make simpler approximations inadequate. Other theoretical work, illustrated below, applied direct dynamics, quantum force trajectory calculations to investigate a series of reactions of the HOCO radical. The potential energy surface for the OH + CO/ H + CO2 reaction, showing two barriers (TS1 and TS2) and the deep HOCO well along the minimum energy pathway. The inset figure shows the experimental and calculated reactivity of HOCO with selected collision partners. See J.S. Francisco, J.T. Muckerman and H.-G. Yu, "HOCO radical chemistry,"

97

Phase Transformations in Confined Nanosystems  

SciTech Connect (OSTI)

This project discovered that non-equilibrium structures, including chemically ordered structures not observed in bulk systems, form in isolated nanoscale systems. Further, a generalized model was developed that effectively explained the suppression of equilibrium phase transformations. This thermodynamic model considered the free energy decrease associated with the phase transformation was less than the increase in energy associated with the formation of an interphase interface, therefore inhibiting the phase transformation. A critical diameter exists where the system transitions to bulk behavior, and a generalized equation was formulated that successfully predicted this transition in the Fe-Au system. This provided and explains a new route to novel structures not possible in bulk systems. The structural characterization was accomplished using transmission electron microscopy in collaboration with Matthew Kramer of Ames Laboratory. The PI and graduate student visited Ames Laboratory several times a year to conduct the experiments.

Shield, Jeffrey E. [Department of Mechanical & Materials Engineering] [Department of Mechanical & Materials Engineering; Belashchenko, Kirill [Department of Physics & Astronomy] [Department of Physics & Astronomy

2014-04-29T23:59:59.000Z

98

The second-phase development of the China JinPing underground Laboratory  

E-Print Network [OSTI]

During 2013-2015 an expansion of the China JinPing underground Laboratory (CJPL) will be undertaken along a main branch of a bypass tunnel in the JinPing tunnel complex. This second phase of CJPL will increase laboratory space to approximately 96,000 m^3, which can be compared to the existing CJPL-I volume of 4,000 m^3. One design configuration has eight additional hall spaces, each over 60 m long and approximately 12 m in width, with overburdens of about 2.4 km of rock, oriented parallel to and away from the main water transport and auto traffic tunnels. Concurrent with the excavation activities, planning is underway for dark matter and other rare-event detectors, as well as for geophysics/engineering and other coupled multi-disciplinary sensors. In the town meeting on 8 September, 2013 at Asilomar, CA, associated with the 13th International Conference on Topics in Astroparticle and Underground Physics (TAUP), presentations and panel discussions addressed plans for one-ton expansions of the current CJPL germanium detector array of the China Darkmatter EXperiment (CDEX) collaboration and of the duel-phase xenon detector of the Panda-X collaboration, as well as possible new detector initiatives for dark matter studies, low-energy solar neutrino detection, neutrinoless double beta searches, and geoneutrinos. JinPing was also discussed as a site for a low-energy nuclear astrophysics accelerator. Geophysics/engineering opportunities include acoustic and micro-seismic monitoring of rock bursts during and after excavation, coupled-process in situ measurements, local, regional, and global monitoring of seismically induced radon emission, and electromagnetic signals.

Jainmin Li; Xiangdong Ji; Wick Haxton; Joseph S. Y. Wang

2014-04-09T23:59:59.000Z

99

Phase Space Navigator: Towards Automating Control Synthesis in Phase Spaces for Nonlinear Control Systems  

E-Print Network [OSTI]

We develop a novel autonomous control synthesis strategy called Phase Space Navigator for the automatic synthesis of nonlinear control systems. The Phase Space Navigator generates global control laws by synthesizing ...

Zhao, Feng

1991-04-01T23:59:59.000Z

100

Continued development of a semianalytical solution for two-phase fluid and heat flow in a porous medium  

SciTech Connect (OSTI)

Over the past few years the authors have developed a semianalytical solution for transient two-phase water, air, and heat flow in a porous medium surrounding a constant-strength linear heat source, using a similarity variable {eta} = r/{radical}t. Although the similarity transformation approach requires a simplified geometry, all the complex physical mechanisms involved in coupled two-phase fluid and heat flow can be taken into account in a rigorous way, so that the solution may be applied to a variety of problems of current interest. The work was motivated by adverse to predict the thermohydrological response to the proposed geologic repository for heat-generating high-level nuclear wastes at Yucca Mountain, Nevada, in a partially saturated, highly fractured volcanic formation. The paper describes thermal and hydrologic conditions near the heat source; new features of the model; vapor pressure lowering; and the effective-continuum representation of a fractured/porous medium.

Doughty, C.; Pruess, K. [Lawrence Berkeley Lab., CA (United States)

1991-06-01T23:59:59.000Z

Note: This page contains sample records for the topic "development phase phase" 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

Phase II - Resource Exploration and Confirmation | Open Energy Information  

Open Energy Info (EERE)

Phase II - Resource Exploration and Confirmation Phase II - Resource Exploration and Confirmation Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home GEA Development Phase II: Resource Exploration and Confirmation GEA Development Phases The Geothermal Energy Association's (GEA) Geothermal Reporting Terms and Definitions are a guideline for geothermal developers to use when submitting geothermal resource development information to GEA for public dissemination in its annual US Geothermal Power Production and Development Update. GEA's Geothermal Reporting Terms and Definitions serve to increase the consistency, accuracy, and reliability of industry information presented in the development updates. Phase I - Resource Procurement and Identification Phase II - Resource Exploration and Confirmation Phase III - Permitting and Initial Development

102

Microcellular foams via phase separation  

SciTech Connect (OSTI)

A study of wide variety of processes for making plastic foams shows that phase separation processes for polymers from solutions offers the most viable methods for obtaining rigid plastic foams which met the physical requirements for fusion target designs. Four general phase separation methods have been shown to give polymer foams with densities less than 0.1 g/cm/sup 3/ and cell sizes of 30..mu..m or less. These methods involve the utilization of non-solvent, chemical or thermal cooling processes to achieve a controlled phase separation wherein either two distinct phases are obtained where the polymer phase is a continuous phase or two bicontinuous phases are obtained where both the polymer and solvent are interpenetrating, continuous, labyrinthine phases. Subsequent removal of the solvent gives the final foam structure.

Young, A.T.

1985-01-01T23:59:59.000Z

103

Neutron phase echo  

Science Journals Connector (OSTI)

The coherent overlap of the waves traversing the two legs of a perfect-crystal neutron interferometer is altered by a material with a neutron-nuclear optical potential. The fringe visibility is limited by the longitudinal coherence length. The loss of interference contrast caused by a slab of material of positive optical potential can be restored by placing another slab of material with a negative optical potential in the same leg of the interferometer. This paper describes the observation and detailed characterization of this quantum-mechanical phenomenon, which we call the phase-echo effect.

R. Clothier; H. Kaiser; S. A. Werner; H. Rauch; H. Wlwitsch

1991-11-01T23:59:59.000Z

104

Developing Secure Power Systems Professional Competence: Alignment and Gaps in Workforce Development Programs for Phase 2 of the Secure Power Systems Professional project  

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

53 53 Prepared for the U.S. Department of Energy under Contract DE-AC05-76RL01830 Developing Secure Power Systems Professional Competence: Alignment and Gaps in Workforce Development Programs for Phase 2 of the Secure Power Systems Professional project LR O'Neil TJ Vanderhorst, Jr MJ Assante J Januszewski, III DH Tobey R Leo TJ Conway K Perman August 2013 PNNL- 22653 Developing Secure Power Systems Professional Competence: Alignment and Gaps in Workforce Development Programs for Phase 2 of the Secure Power Systems Professional project LR O'Neil TJ Vanderhorst, Jr MJ Assante J Januszewski, III DH Tobey R Leo TJ Conway K Perman Contributors: SGC Panel Members August 2013 Prepared by: Pacific Northwest National Laboratory and

105

Property:Project Phase | Open Energy Information  

Open Energy Info (EERE)

Phase Phase Jump to: navigation, search Property Name Project Phase Property Type Text This is a property of type String. Pages using the property "Project Phase" Showing 25 pages using this property. (previous 25) (next 25) M MHK Projects/40MW Lewis project + Phase 2 + MHK Projects/ADM 3 + Phase ? + MHK Projects/ADM 4 + Phase ? + MHK Projects/ADM 5 + Phase 2 + MHK Projects/AW Energy EMEC + Phase 3 + MHK Projects/AWS II + Phase 1 + MHK Projects/Admirality Inlet Tidal Energy Project + Phase 1 + MHK Projects/Agucadoura + Phase 3 + MHK Projects/Alaska 1 + Phase 0 + MHK Projects/Alaska 13 + Phase ? + MHK Projects/Alaska 17 + Phase 0 + MHK Projects/Alaska 18 + Phase 0 + MHK Projects/Alaska 24 + Phase 0 + MHK Projects/Alaska 25 + Phase 0 + MHK Projects/Alaska 28 + Phase 0 +

106

Development and evaluation of a thermodynamic dataset for phases of interest in CO2 mineral sequestration in basaltic rocks  

E-Print Network [OSTI]

evaluation of a thermodynamic dataset for phases of interestKeywords: Thermodynamic dataset CO2water basaltABSTRACT A thermodynamic dataset describing 36 mineral

Aradottir, E.S.P.

2013-01-01T23:59:59.000Z

107

Development of a methodology for defining whole-building energy design targets for commercial buildings: Phase 2, Development concept stage report  

SciTech Connect (OSTI)

Since 1985, the Pacific Northwest Laboratory (PNL) has managed the Whole-Building Energy Design Targets project for the US Department of Energy (DOE) Office of Building Technologies (formerly the Office of Buildings and Community Systems). The primary focus of the Targets project is to develop a flexible methodology for buildings industry use in setting energy performance guidelines for commercial buildings and for determining compliance with those guidelines. The project is being conducted as a two-phase effort. In Phase 1, Planning, the project team determined the research that was necessary for developing the Targets methodology. In the concept stage of Phase 2, Development, the team sought to define the technical and software development concepts upon which the overall Targets methodology will be based. The concept stage work is documented in four volumes, of which this summary volume is the first. The three other volumes are Volume 2: Technical Concept Development Task Reports, Volume 3: Workshop Summaries, and Volume 4: Software Concept Development Task Reports. 8 refs., 14 figs.

Jones, J.W. (American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc., Atlanta, GA (USA)); Deringer, J.J. (American Inst. of Architects, Washington, DC (USA)); McKay, H.N. (Illuminating Engineering Society of North America, New York, NY (USA))

1990-09-01T23:59:59.000Z

108

3 - Thermodynamics and Phase Diagrams  

Science Journals Connector (OSTI)

Abstract Many types of phase diagram sections involving temperature, composition, pressure, chemical potentials, partial pressures, volume and enthalpy as axis variables or constants are described for binary, ternary and multicomponent systems. The theme is the relationship between thermodynamics and phase diagrams. A review of the fundamentals of thermodynamics as required for the interpretation and calculation of phase diagrams is presented. One set of general geometrical rules which governs all types of single-valued phase diagram sections is derived. The computer calculation of phase diagrams from large critically assessed databases of model parameters is discussed.

Arthur D. Pelton

2014-01-01T23:59:59.000Z

109

Development of Polarizable Water Force Fields for Phase Equilibrium Calculations Bin Chen, Jianhua Xing, and J. Ilja Siepmann*  

E-Print Network [OSTI]

point (TIP4P) water representations. Adiabatic nuclear and electronic sampling Monte Carlo (ANES the electronic many-body effect. For example, an isolated water molecule (in the gas phase) has a dipole moment There is considerable controversy on the exact value of the average molecular dipole moment in condensed phases

Xing, Jianhua

110

Commensurate phases, incommensurate phases and the devils staircase  

E-Print Network [OSTI]

Modulated structures with periods which are incommensurable (or high-order com-mensurable) with the basic lattice are quite common in condensed-matter physics. The structure may be another lattice, a periodic lattice distortion, a helical or sinusoidal magnetic structure, or a charge density wave in one, two or three dimensions. This review surveys recent theories on the transition between commensurate (C) and incommensurate (I) phases, and on the properties of the incommensurate phase. The predictions of theories will be compared with experiments. The CI transition is usually described in terms of wall, or soliton, formation. The nature of the transition and the structure of the I phase are quite different in two and three dimensions. In three dimensions the I phase seems to consist of an infinity of high-order locked C phases, which may or may not be separated by an infinity of truly incommensurate phases. This behaviour is known as the devils staircase. In two dimensions the incommensurate phase (at T # 0) is a floating phase without complete long-range order, and it does not lock-in at high-order commensurate phases. Phase diagrams are determined by the stability of two types of topological defects: walls, which destabilise the C phase with respect to I phases, and dislocations or vortices which generate paramagnetic or fluid phases. A consequence of this competition is that for sufficiently low order of commensurability the C and I phases are separated by a fluid phase. The properties of modulated systems can be studied by iterating certain area-preserving two-dimensional maps. Very recent studies indicate that, in addition to C and I phases, there are chaotic structures which are at least metastable. The chaotic regimes separate C and I phases and may be described as randomly pinned solitons. The relevance of the chaotic regimes to adsorbed monolayers, pinning of charge density waves, Peierls transitions and spin glasses is briefly discussed. This review was received in July 1981.

Per Bak

111

PhaseII1.PDF  

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

Stakeholder Meeting Stakeholder Meeting DOE-NETL Proposed Phase II Large Scale Mercury Control Technology Field Testing Program September 12, 2002 Meeting Summary A meeting was held in Arlington, VA on September 12 on DOE-NETL's plans to go forward with a second phase of field testing of advanced mercury control technology. The meeting was held in conjunction with the Air Quality III Conference and was attended by approximately 53 representatives from the coal and electric-utility industries, technology developers, EPA, and other interested parties (see attached attendees list). Scott Renninger provided a brief overview of DOE-NETL's current mercury field testing program. A summary of the results from an earlier stakeholder meeting held in Washington on June 4 were also presented as a starting point for discussion to help

112

Coherent Phase Argument for Inflation  

E-Print Network [OSTI]

Cosmologists have developed a phenomenally successful picture of structure in the universe based on the idea that the universe expanded exponentially in its earliest moments. There are three pieces of evidence for this exponential expansion -- {\\it inflation} -- from observations of anisotropies in the cosmic microwave background. First, the shape of the primordial spectrum is very similar to that predicted by generic inflation models. Second, the angular scale at which the first acoustic peak appears is consistent with the flat universe predicted by inflation. Here I describe the third piece of evidence, perhaps the most convincing of all: the phase coherence needed to account for the clear peak/trough structure observed by the WMAP satellite and its predecessors. I also discuss alternatives to inflation that have been proposed recently and explain how they produce coherent phases.

Scott Dodelson

2003-09-05T23:59:59.000Z

113

Agent review phase one report.  

SciTech Connect (OSTI)

This report summarizes the findings for phase one of the agent review and discusses the review methods and results. The phase one review identified a short list of agent systems that would prove most useful in the service architecture of an information management, analysis, and retrieval system. Reviewers evaluated open-source and commercial multi-agent systems and scored them based upon viability, uniqueness, ease of development, ease of deployment, and ease of integration with other products. Based on these criteria, reviewers identified the ten most appropriate systems. The report also mentions several systems that reviewers deemed noteworthy for the ideas they implement, even if those systems are not the best choices for information management purposes.

Zubelewicz, Alex Tadeusz; Davis, Christopher Edward; Bauer, Travis LaDell

2009-12-01T23:59:59.000Z

114

Proceedings: EPRI Second Phased Array Inspection Seminar  

SciTech Connect (OSTI)

The Second EPRI Phased Array Inspection Seminar focused on industrial applications of phased array technology that have been achieved to date or are planned for the near future. Presentations were made by developers of inspection techniques, inspection services vendors, and utility personnel who have performed inspections using arrays.

None

2001-11-01T23:59:59.000Z

115

The Noncommutative Anandan's Quantum Phase  

E-Print Network [OSTI]

In this work we study the noncommutative nonrelativistic quantum dynamics of a neutral particle, that possesses permanent magnetic and electric dipole momenta, in the presence of an electric and magnetic fields. We use the Foldy-Wouthuysen transformation of the Dirac spinor with a non-minimal coupling to obtain the nonrelativistic limit. In this limit, we will study the noncommutative quantum dynamics and obtain the noncommutative Anandan's geometric phase. We analyze the situation where magnetic dipole moment of the particle is zero and we obtain the noncommutative version of the He-McKellar-Wilkens effect. We demonstrate that this phase in the noncommutative case is a geometric dispersive phase. We also investigate this geometric phase considering the noncommutativity in the phase space and the Anandan's phase is obtained.

E. Passos; L. R. Ribeiro; C. Furtado; J. R. Nascimento

2007-06-18T23:59:59.000Z

116

The Noncommutative Anandan's Quantum Phase  

E-Print Network [OSTI]

In this work we study the noncommutative nonrelativistic quantum dynamics of a neutral particle, that possesses permanent magnetic and electric dipole momenta, in the presence of an electric and magnetic fields. We use the Foldy-Wouthuysen transformation of the Dirac spinor with a non-minimal coupling to obtain the nonrelativistic limit. In this limit, we will study the noncommutative quantum dynamics and obtain the noncommutative Anandan's geometric phase. We analyze the situation where magnetic dipole moment of the particle is zero and we obtain the noncommutative version of the He-McKellar-Wilkens effect. We demonstrate that this phase in the noncommutative case is a geometric dispersive phase. We also investigate this geometric phase considering the noncommutativity in the phase space and the Anandan's phase is obtained.

Passos, E; Nascimento, J R; Ribeiro, L R

2006-01-01T23:59:59.000Z

117

Phase IV - Resource Production and Power Plant Construction | Open Energy  

Open Energy Info (EERE)

Phase IV - Resource Production and Power Plant Construction Phase IV - Resource Production and Power Plant Construction Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home GEA Development Phase IV: Resource Production and Power Plant Construction GEA Development Phases The Geothermal Energy Association's (GEA) Geothermal Reporting Terms and Definitions are a guideline for geothermal developers to use when submitting geothermal resource development information to GEA for public dissemination in its annual US Geothermal Power Production and Development Update. GEA's Geothermal Reporting Terms and Definitions serve to increase the consistency, accuracy, and reliability of industry information presented in the development updates. Phase I - Resource Procurement and Identification Phase II - Resource Exploration and Confirmation

118

QCD Phase Transitions, Volume 15  

SciTech Connect (OSTI)

The title of the workshop, ''The QCD Phase Transitions'', in fact happened to be too narrow for its real contents. It would be more accurate to say that it was devoted to different phases of QCD and QCD-related gauge theories, with strong emphasis on discussion of the underlying non-perturbative mechanisms which manifest themselves as all those phases. Before we go to specifics, let us emphasize one important aspect of the present status of non-perturbative Quantum Field Theory in general. It remains true that its studies do not get attention proportional to the intellectual challenge they deserve, and that the theorists working on it remain very fragmented. The efforts to create Theory of Everything including Quantum Gravity have attracted the lion share of attention and young talent. Nevertheless, in the last few years there was also a tremendous progress and even some shift of attention toward emphasis on the unity of non-perturbative phenomena. For example, we have seen some efforts to connect the lessons from recent progress in Supersymmetric theories with that in QCD, as derived from phenomenology and lattice. Another example is Maldacena conjecture and related development, which connect three things together, string theory, super-gravity and the (N=4) supersymmetric gauge theory. Although the progress mentioned is remarkable by itself, if we would listen to each other more we may have chance to strengthen the field and reach better understanding of the spectacular non-perturbative physics.

Schaefer, T.; Shuryak, E.

1999-03-20T23:59:59.000Z

119

Identifying the Bose glass phase  

E-Print Network [OSTI]

Introducing disorder into the Bose-Hubbard model at integer fillings leads to a Bose glass phase, along with the Mott insulator and superfluid phases. We suggest a new order parameter: the determinant of the one body density matrix, which is nonzero only within the Mott-insulator phase. Alongside the superfluid fraction, it is then possible to distinguish the three phases. The Bose glass phase is the only phase which has vanishing determinant and superfluid fraction. The vanishing of the determinant in the Bose glass phase occurs due to the partial fragmentation of the condensate into localized fragments, each with zero superfluid response, which implies the presence of unoccupied sites and hence the presence of lines of zeros in the one body density matrix. In the superfluid phase, the determinant vanish for another reason - due to the macroscopic occupation of a single particle state. Finally, we suggest the enhancement of the three body decay rate in the Bose glass phase, as an experimental indicator for the presence of localized fragments.

R. Pugatch; N. Bar-gill; N. Katz; E. Rowen; N. Davidson

2006-07-28T23:59:59.000Z

120

Phase correlations and optical coherence  

Science Journals Connector (OSTI)

We examine the properties of the recently introduced degrees of coherence regarding the phase correlations of the optical field. It is seen that some of these quantities are...

Tervo, Jani; Setl, Tero; Friberg, Ari T

2012-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "development phase phase" 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

Phase-Transfer-Catalyzed Oxidations  

Science Journals Connector (OSTI)

Phase-transfer catalysis (PTC) offers many excellent opportunities for conducting oxidation reactions using inexpensive primary oxidants such as oxygen, sodium hypochlorite, hydrogen peroxide, electrooxidation...

Charles M. Starks; Charles L. Liotta; Marc E. Halpern

1994-01-01T23:59:59.000Z

122

Development of asphalts and pavements using recycled tire rubber. Phase 1: technical feasibility. Final report  

SciTech Connect (OSTI)

This report documents the technical progress made on the development of asphalts and pavements using recycled tire rubber.

Bullin, J.A.; Davison, R.R.; Glover, C.J. [and others

1998-01-01T23:59:59.000Z

123

Diffraction Studies of Ordered Phases and Phase Transitions  

E-Print Network [OSTI]

on graphite and A neutron scattering study of the diluted uniaxial dipolar coupled ferromagnets LiTb.3Y.7F4 transition, the critical neutron scattering of either crystal exhibits the asymmetry characteristic PHASES AND PHASE TRANSITIONS: A synchrotron x-ray scattering study of monolayers of CF4 adsorbed

124

Phasing Out the Phase Problem in Interfacial Crystallography  

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

BESSRC/XOR BESSRC/XOR Phasing Out the Phase Problem in Interfacial Crystallography Photo of Paul Fenter (left) and Zhan Zhang at the mineral-fluid interface spectrometer at 12-ID-D (BESSRC/XOR). Paul Fenter (left) and Zhan Zhang at the mineral-fluid interface spectrometer at 12-ID-D (BESSRC/XOR). Since the advent of dedicated synchrotron radiation facilities, the applications of x-ray diffraction and scattering for structure determination have expanded to include a broad range of materials, from proteins and interfaces to nanoparticles. However, the well-known "phase problem" of crystallography limits these applications. The phase problem arises because the complete description of a structure requires a complex structure factor having both a magnitude and a phase. The measured x-ray

125

Phasing Renewable Energy Implementation | Department of Energy  

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

Phasing Renewable Energy Implementation Phasing Renewable Energy Implementation Phasing Renewable Energy Implementation October 16, 2013 - 4:41pm Addthis If conventional or other renewable energy funding cannot be procured, or if an agency is working towards a higher goal for renewable energy usage that cannot be met with the current budget, agencies may choose to phase renewable energy into their project. This lays the groundwork and infrastructure now so that some or all of the renewable energy can easily be installed at a later date. A guide to phasing the development of renewable energy is the Solar Ready Buildings Planning Guide, developed by the National Renewable Energy Laboratory (NREL). The renewable energy project funding page has more information on applicable methods for financing the renewable energy system

126

Low Wind Speed Technology Phase I: Clipper Turbine Development Project; Clipper Windpower Technology, Inc.  

SciTech Connect (OSTI)

This fact sheet describes a subcontract with Clipper Windpower Technology, Inc. to develop a new turbine design that incorporates advanced elements.

Not Available

2006-03-01T23:59:59.000Z

127

Thermodynamic phase-field model for microstructure with multiple components and phases: The possibility of metastable phases  

E-Print Network [OSTI]

A diffuse-interface model for microstructure with an arbitrary number of components and phases was developed from basic thermodynamic and kinetic principles and formalized within a variational framework. The model includes ...

Cogswell, Daniel A.

128

Advanced turbine systems phase II - conceptual design and product development. Final report, August 1993--July 1996  

SciTech Connect (OSTI)

The National Energy Strategy (NES) calls for a balanced program of greater energy efficiency, use of alternative fuels, and the environmentally responsible development of all U.S. energy resources. Consistent with the NES, a Department of Energy (DOE) program has been created to develop Advanced Turbine Systems (ATS). The technical ATS requirements are based upon two workshops held in Greenville, SC that were sponsored by DOE and hosted by Clemson University. The objective of this 8-year program, managed jointly by DOE`s Office of Fossil Energy, and, Office of Conservation and Renewable Energy, is to develop natural-gas-fired base load power plants that will have cycle efficiencies greater than 60%, lower heating value (LHV), be environmentally superior to current technology, and also be cost competitive. The program will include work to transfer advanced technology to the coal- and biomass-fueled systems being developed in other DOE programs.

NONE

1996-10-01T23:59:59.000Z

129

Expanded High-Level Waste Glass Property Data Development: Phase I  

SciTech Connect (OSTI)

Two separate test matrices were developed as part if the EM-21 Glass Matrix Crucible Testing. The first matrix, developed using a single component-at-a-time design method and covering glasses of interest primarily to Hanford, is addressed in this data package. This data package includes methods and results from glass fabrication, chemical analysis of glass compositions, viscosity, electrical conductivity, liquidus temperature, canister centerline cooling, product consistency testing, and the toxicity characteristic leach procedure.

Schweiger, Michael J.; Riley, Brian J.; Crum, Jarrod V.; Hrma, Pavel R.; Rodriguez, Carmen P.; Arrigoni, Benjamin M.; Lang, Jesse B.; Kim, Dong-Sang; Vienna, John D.; Raszewski, F. C.; Peeler, David K.; Edwards, Tommy B.; Best, D. R.; Reamer, Irene A.; Riley, W. T.; Simmons, P. T.; Workman, R. J.

2011-01-21T23:59:59.000Z

130

Two-phase flow studies  

SciTech Connect (OSTI)

The two-phase flow program is directed at understanding the hydrodynamics of two-phase flows. The two-phase flow regime is characterized by a series of flow patterns that are designated as bubble, slug, churn, and annular flow. Churn flow has received very little scientific attention. This lack of attention cannot be justified because calculations predict that the churn flow pattern will exist over a substantial portion of the two-phase flow zone in producing geothermal wells. The University of Houston is experimentally investigating the dynamics of churn flow and is measuring the holdup over the full range of flow space for which churn flow exists. These experiments are being conducted in an air/water vertical two-phase flow loop. Brown University has constructed and is operating a unique two-phase flow research facility specifically designed to address flow problems of relevance to the geothermal industry. An important feature of the facility is that it is dedicated to two-phase flow of a single substance (including evaporation and condensation) as opposed to the case of a two-component two-phase flow. This facility can be operated with horizontal or vertical test sections of constant diameter or with step changes in diameter to simulate a geothermal well profile.

Hanold, R.J.

1983-12-01T23:59:59.000Z

131

Three phase downhole separator process  

DOE Patents [OSTI]

Three Phase Downhole Separator Process (TPDSP) is a process which results in the separation of all three phases, (1) oil, (2) gas, and (3) water, at the downhole location in the well bore, water disposal injection downhole, and oil and gas production uphole.

Cognata, Louis John (Baytown, TX)

2008-06-24T23:59:59.000Z

132

Developing life-cycle phases for the DoDAF using ISO15704 Annex A (GERAM)  

Science Journals Connector (OSTI)

This paper presents a development of the US Department of Defense Architecture Framework (DoDAF) based on life-cycle concept of the Generalized Enterprise Reference Architecture and Methodology (GERAM) framework/ISO 15704:2000 requirements. Previous ... Keywords: DoDAF, Enterprise architecture, GERAM, ISO15704, Life-cycle

Kamal Chaharsooghi; Mohammad Ahmadi Achachlouei

2011-04-01T23:59:59.000Z

133

Conceptual design report, TWRS Privatization Phase I, site development and roads, subproject W-505  

SciTech Connect (OSTI)

This document includes Conceptual Design Report (CDR) for the site development, construction of new roads and improvements at existing road intersections, habitat mitigation, roadway lighting, and construction power needed for the construction of two Private Contractor (PC) Facilities. Approximately 50 hectare (124 acres) land parcel, east of the Grout Facility, is planned for the PC facilities.

Singh, G.

1997-06-05T23:59:59.000Z

134

Ocean thermal energy conversion power system development. Final design report: PSD-I, Phase II  

SciTech Connect (OSTI)

The PSD-I program provides a heat exchanger sytem consisting of an evaporator, condenser and various ancillaries with ammonia used as a working fluid in a closed simulated Rankine cycle. It is to be installed on the Chepachet Research Vessel for test and evaluation of a number of OTEC concepts in a true ocean environment. It is one of several test articles to be tested. Primary design concerns include control of biofouling, corrosion and erosion of aluminum tubes, selection of materials, and the development of a basis for scale-up to large heat exchangers so as to ultimately demonstrate economic feasibility on a commercial scale. The PSD-I test article is devised to verify thermodynamic, environmental, and mechanical performance of basic design concepts. The detailed design, development, fabrication, checklist, delivery, installation support, and operation support for the Test Article Heat Exchangers are described. (WHK)

None

1980-06-30T23:59:59.000Z

135

Development of electromagnetic acoustic transducer (EMAT) phased arrays for SFR inspection  

SciTech Connect (OSTI)

A long-standing problem for Sodium cooled Fast Reactor (SFR) instrumentation is the development of efficient under-sodium visualization systems adapted to the hot and opaque sodium environment. Electromagnetic Acoustic Transducers (EMAT) are potential candidates for a new generation of Ultrasonic Testing (UT) probes well-suited for SFR inspection that can overcome drawbacks of classical piezoelectric probes in sodium environment. Based on the use of new CIVA simulation tools, we have designed and optimized an advanced EMAT probe for under-sodium visualization. This has led to the development of a fully functional L-wave EMAT sensing system composed of 8 elements and a casing withstanding 200 C sodium inspection. Laboratory experiments demonstrated the probe's ability to sweep an ultrasonic beam to an angle of 15 degrees. Testing in a specialized sodium facility has shown that it was possible to obtain pulse-echo signals from a target under several different angles from a fixed position.

Le Bourdais, Florian; Marchand, Benot [CEA LIST, Centre de Saclay F-91191 Gif-sur-Yvette (France)

2014-02-18T23:59:59.000Z

136

Development of a Two-Phase Model for the Hot Deformation of Highly-Alloyed Aluminum  

SciTech Connect (OSTI)

Conventional processing methods for highly alloyed aluminum consist of ingot casting, followed by hot rolling and thermal treatments. Defects result in lost productivity and wasted energy through the need to remelt and reprocess the material. This research centers on developing a fundamental understanding for deformation of wrought 705X series alloys, a key alloy system used in structural airframe applications. The development of damage at grain boundaries is characterized through a novel test that provides initiation of failure while preserving a controlled deformation response. Data from these mechanical tests are linked to computer simulations of the hot rolling process through a critical measure of damage. Transmission electron microscopy provides fundamental insight into deformation at these high working temperatures, and--in a novel link between microscale and macroscale response--the evolution of microstructure (crystallographic orientation) provides feedback for tuning of friction in the hot rolling process. The key product of this research is a modeling framework for the analysis of industrial hot rolling.

A. J. Beaudoin; J. A. Dantzig; I. M. Robertson; B. E. Gore; S. F. Harnish; H. A. Padilla

2005-10-31T23:59:59.000Z

137

Report on Performance of Prototype Dynatronix Power Supplies Developed Under a Phase I DOE SBIR  

SciTech Connect (OSTI)

The purpose of this study is to evaluate the prototype power supplies fabricated by Dynatronix, Inc. This project supports the advancement of electroforming capabilities to produce ultra-high purity copper. Ultra-high purity copper is an essential material used for a range of current and future fundamental nuclear physics programs such as the MAJORANA DEMONSTRATOR. The Mach 30 power supplies are a new design built to the specifications from the requirements of Pacific Northwest National Laboratory (PNNL) with regard to timing, voltage, current output, and the required tolerances. The parameters used in these tests were developed empirically over a number of years based on a combination of thermodynamic and kinetics of the electroplating process. The power supplies were operated in a typical cleanroom environment for the production electroforming at PNNL. The units that were received by PNNL in July, 2010 have performed satisfactorily and have demonstrated short term durability.

Hoppe, Eric W.; Merriman, Jason H.

2011-03-01T23:59:59.000Z

138

Robustness of phase retrieval methods in x-ray phase contrast imaging: A comparison  

SciTech Connect (OSTI)

Purpose: The robustness of the phase retrieval methods is of critical importance for limiting and reducing radiation doses involved in x-ray phase contrast imaging. This work is to compare the robustness of two phase retrieval methods by analyzing the phase maps retrieved from the experimental images of a phantom. Methods: Two phase retrieval methods were compared. One method is based on the transport of intensity equation (TIE) for phase contrast projections, and the TIE-based method is the most commonly used method for phase retrieval in the literature. The other is the recently developed attenuation-partition based (AP-based) phase retrieval method. The authors applied these two methods to experimental projection images of an air-bubble wrap phantom for retrieving the phase map of the bubble wrap. The retrieved phase maps obtained by using the two methods are compared. Results: In the wrap's phase map retrieved by using the TIE-based method, no bubble is recognizable, hence, this method failed completely for phase retrieval from these bubble wrap images. Even with the help of the Tikhonov regularization, the bubbles are still hardly visible and buried in the cluttered background in the retrieved phase map. The retrieved phase values with this method are grossly erroneous. In contrast, in the wrap's phase map retrieved by using the AP-based method, the bubbles are clearly recovered. The retrieved phase values with the AP-based method are reasonably close to the estimate based on the thickness-based measurement. The authors traced these stark performance differences of the two methods to their different techniques employed to deal with the singularity problem involved in the phase retrievals. Conclusions: This comparison shows that the conventional TIE-based phase retrieval method, regardless if Tikhonov regularization is used or not, is unstable against the noise in the wrap's projection images, while the AP-based phase retrieval method is shown in these experiments to be superior to the TIE-based method for the robustness in performing the phase retrieval.

Yan, Aimin; Wu, Xizeng; Liu, Hong [Department of Radiology, University of Alabama at Birmingham, Birmingham, Alabama 35233 (United States); Center for Bioengineering and School of Electrical and Computer Engineering, University of Oklahoma, Norman, Oklahoma 73019 (United States)

2011-09-15T23:59:59.000Z

139

Phase I - Resource Procurement and Identification | Open Energy Information  

Open Energy Info (EERE)

- Resource Procurement and Identification - Resource Procurement and Identification Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home GEA Development Phase I: Resource Procurement and Identification GEA Development Phases The Geothermal Energy Association's (GEA) Geothermal Reporting Terms and Definitions are a guideline for geothermal developers to use when submitting geothermal resource development information to GEA for public dissemination in its annual US Geothermal Power Production and Development Update. GEA's Geothermal Reporting Terms and Definitions serve to increase the consistency, accuracy, and reliability of industry information presented in the development updates. Phase I - Resource Procurement and Identification Phase II - Resource Exploration and Confirmation Phase III - Permitting and Initial Development

140

Research and development of proton-exchange membrane (PEM) fuel cell system for transportation applications. Phase I final report  

SciTech Connect (OSTI)

Objective during Phase I was to develop a methanol-fueled 10-kW fuel cell power source and evaluate its feasibility for transportation applications. This report documents research on component (fuel cell stack, fuel processor, power source ancillaries and system sensors) development and the 10-kW power source system integration and test. The conceptual design study for a PEM fuel cell powered vehicle was documented in an earlier report (DOE/CH/10435-01) and is summarized herein. Major achievements in the program include development of advanced membrane and thin-film low Pt-loaded electrode assemblies that in reference cell testing with reformate-air reactants yielded performance exceeding the program target (0.7 V at 1000 amps/ft{sup 2}); identification of oxidation catalysts and operating conditions that routinely result in very low CO levels ({le} 10 ppm) in the fuel processor reformate, thus avoiding degradation of the fuel cell stack performance; and successful integrated operation of a 10-kW fuel cell stack on reformate from the fuel processor.

NONE

1996-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "development phase phase" 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

Symmetry, Defects, and Gauging of Topological Phases  

E-Print Network [OSTI]

We examine the interplay of symmetry and topological order in $2+1$ dimensional topological phases of matter. We present a definition of the \\it topological symmetry \\rm group, which characterizes the symmetry of the emergent topological quantum numbers of a topological phase $\\mathcal{C}$, and describe its relation with the microscopic symmetry of the underlying physical system. We derive a general framework to classify symmetry fractionalization in topological phases, including non-Abelian phases and the possibility that the symmetries permute the quasiparticle types. We develop a theory of extrinsic defects (fluxes) associated with elements of the symmetry group, which provides a general classification of symmetry-enriched topological phases derived from a topological phase of matter $\\mathcal{C}$ with (on-site) symmetry group $G$. The algebraic theory of the defects, known as a $G$-crossed braided tensory category $\\mathcal{C}_{G}^{\\times}$, allows one to compute many properties, such as the number of topologically distinct types of defects associated with each group element, their fusion rules, quantum dimensions, zero modes, braiding exchange transformations, a generalized Verlinde formula for the defects, and modular transformations of the $G$-crossed extensions of topological phases. We also examine the promotion of the global symmetry to a local gauge invariance, wherein the extrinsic $G$-defects are turned into deconfined quasiparticle excitations, which results in a different topological phase $\\mathcal{C}/G$. A number of instructive and/or physically relevant examples are studied in detail.

Maissam Barkeshli; Parsa Bonderson; Meng Cheng; Zhenghan Wang

2014-10-16T23:59:59.000Z

142

PHASE II CALDERON PROCESS TO PRODUCE DIRECT REDUCED IRON RESEARCH AND DEVELOPMENT PROJECT  

SciTech Connect (OSTI)

The commercialization path of the Calderon technology for making a feedstock for steelmaking with assistance from DOE initially focused on making coke and work was done which proved that the Calderon technology is capable of making good coke for hard driving blast furnaces. U.S. Steel which participated in such demonstration felt that the Calderon technology would be more meaningful in lowering the costs of making steel by adapting it to the making of iron--thus obviating the need for coke. U.S. Steel and Calderon teamed up to jointly work together to demonstrate that the Calderon technology will produce in a closed system iron units from iron concentrate (ore) and coal competitively by eliminating pelletizing, sintering, coking and blast furnace operation. If such process steps could be eliminated, a huge reduction in polluting emissions and greenhouse gases (including CO{sub 2}) relating to steelmaking would ensue. Such reduction will restructure the steel industry away from the very energy-intensive steelmaking steps currently practiced and drastically reduce costs of making steel. The development of a technology to lower U.S. steelmaking costs and become globally competitive is a priority of major importance. Therefore, the development work which Calderon is conducting presently under this Agreement with the U.S. Department of Energy becomes more crucial than ever. During the 3rd quarter of 2005 which the present report covers, virtually all the effort to advance the Calderon technology to make iron units was concentrated towards forming a team with a steelmaker who needs both iron units in the form of hot metal and a substitute for natural gas (SNG), both being major contributors to higher costs in steelmaking. Calderon felt that a very good candidate would be Steel Dynamics (SDI) by virtue that it operates a rotary hearth facility in Butler, Indiana that uses large amounts of natural gas to reduce briquettes made from ore and coal that they subsequently melt in a submerged arc furnace that is a large consumer of electric power. This facility is operated as a division of SDI under the name of Iron Dynamics (IDI). It is no secret that IDI has had and still has a great number of operational problems, including high cost for natural gas.

Albert Calderon

2005-10-14T23:59:59.000Z

143

DEVELOPMENT AND TESTING OF INDUSTRIAL SCALE, COAL FIRED COMBUSTION SYSTEM, PHASE 3  

SciTech Connect (OSTI)

In the second quarter of calendar year 1998, no work was performed on the present project. The 20 MMBtu/hr combustor-boiler facility was not operated during this period. The total test days on the Philadelphia facility to the end of June 1998 remained at 108 as in the previous quarter. Of these, 34 tests were part of the other DOE project. The test days on the other project are listed here because they demonstrate the durability of the combustor, which is one of the objectives of the present project. As noted previously, this exceeds the planned 63 test days for this project. All key project objectives have been exceeded including combustor durability, automated combustor operation, NO{sub x} emissions as low as 0.07 lb/MMBtu and SO{sub 2} emissions as low as 0.2 lb/MMBtu. In addition, a novel post-combustion NO{sub x} control process has been tested on a 37 MW and 100 MW utility boiler. Any further tests will depend on the results of evaluations of current and prior tests. The only effort remaining on this project is facility disassembly and Final Report. Also, as part of the commercialization effort for this combustor technology, Coal Tech is developing alternative designs of the combustor that allow its fabrication as substantially reduced costs from the present unit.

Dr. Bert Zauderer

1998-07-08T23:59:59.000Z

144

Center for Fuel Cell Research and Applications development phase. Final report  

SciTech Connect (OSTI)

The deployment and operation of clean power generation is becoming critical as the energy and transportation sectors seek ways to comply with clean air standards and the national deregulation of the utility industry. However, for strategic business decisions, considerable analysis is required over the next few years to evaluate the appropriate application and value added from this emerging technology. To this end the Houston Advanced Research Center (HARC) is proposing a three-year industry-driven project that centers on the creation of ``The Center for Fuel Cell Research and Applications.`` A collaborative laboratory housed at and managed by HARC, the Center will enable a core group of six diverse participating companies--industry participants--to investigate the economic and operational feasibility of proton-exchange-membrane (PEM) fuel cells in a variety of applications (the core project). This document describes the unique benefits of a collaborative approach to PEM applied research, among them a shared laboratory concept leading to cost savings and shared risks as well as access to outstanding research talent and lab facilities. It also describes the benefits provided by implementing the project at HARC, with particular emphasis on HARC`s history of managing successful long-term research projects as well as its experience in dealing with industry consortia projects. The Center is also unique in that it will not duplicate the traditional university role of basic research or that of the fuel cell industry in developing commercial products. Instead, the Center will focus on applications, testing, and demonstration of fuel cell technology.

NONE

1998-12-01T23:59:59.000Z

145

SNMR pulse sequence phase cycling  

DOE Patents [OSTI]

Technologies applicable to SNMR pulse sequence phase cycling are disclosed, including SNMR acquisition apparatus and methods, SNMR processing apparatus and methods, and combinations thereof. SNMR acquisition may include transmitting two or more SNMR pulse sequences and applying a phase shift to a pulse in at least one of the pulse sequences, according to any of a variety cycling techniques. SNMR processing may include combining SNMR from a plurality of pulse sequences comprising pulses of different phases, so that desired signals are preserved and indesired signals are canceled.

Walsh, David O; Grunewald, Elliot D

2013-11-12T23:59:59.000Z

146

Phase projection using three satellites  

E-Print Network [OSTI]

This study seeks to investigate various techniques used in Interferometric Synthetic Aperture Radar (InSAR) during the phase unwrapping process and the noise filtering step. In particular, as intuition would follow, we ...

Yeung, Michael C. (Michael Chi-Hang)

2007-01-01T23:59:59.000Z

147

Agenda Phase 2 Industry Day  

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

JCTD Deputy Transition Manager, NAVFAC EXWC 11:00 - 11:15 Ft. Carson Sustainability and Net Zero Plan and Successes Hal Alguire, Director DPW 11:15 - 11:30 Phase 3, Future plans...

148

Precision digital pulse phase generator  

DOE Patents [OSTI]

A timing generator comprises a crystal oscillator connected to provide an output reference pulse. A resistor-capacitor combination is connected to provide a variable-delay output pulse from an input connected to the crystal oscillator. A phase monitor is connected to provide duty-cycle representations of the reference and variable-delay output pulse phase. An operational amplifier drives a control voltage to the resistor-capacitor combination according to currents integrated from the phase monitor and injected into summing junctions. A digital-to-analog converter injects a control current into the summing junctions according to an input digital control code. A servo equilibrium results that provides a phase delay of the variable-delay output pulse to the output reference pulse that linearly depends on the input digital control code. 2 figs.

McEwan, T.E.

1996-10-08T23:59:59.000Z

149

Phase retrieval with prior information  

Science Journals Connector (OSTI)

An algorithm for phase retrieval with Bayesian statistics is discussed. It is shown how the statistics of Kolmogorov turbulence can be used to compute the likelihood for a particular...

Irwan, R; Lane, R G

1998-01-01T23:59:59.000Z

150

Gas-phase chemical dynamics  

SciTech Connect (OSTI)

Research in this program is directed towards the spectroscopy of small free radicals and reactive molecules and the state-to-state dynamics of gas phase collision, energy transfer, and photodissociation phenomena. Work on several systems is summarized here.

Weston, R.E. Jr.; Sears, T.J.; Preses, J.M. [Brookhaven National Laboratory, Upton, NY (United States)

1993-12-01T23:59:59.000Z

151

Insoluble Phase-Transfer Catalysts  

Science Journals Connector (OSTI)

An important problem facing the designer of industrial phase-transfer catalysis (PTC) processes using soluble PTC catalysts concerns the removal of the catalyst from the reaction mixture, and its economic recy...

Charles M. Starks; Charles L. Liotta; Marc E. Halpern

1994-01-01T23:59:59.000Z

152

Precision digital pulse phase generator  

DOE Patents [OSTI]

A timing generator comprises a crystal oscillator connected to provide an output reference pulse. A resistor-capacitor combination is connected to provide a variable-delay output pulse from an input connected to the crystal oscillator. A phase monitor is connected to provide duty-cycle representations of the reference and variable-delay output pulse phase. An operational amplifier drives a control voltage to the resistor-capacitor combination according to currents integrated from the phase monitor and injected into summing junctions. A digital-to-analog converter injects a control current into the summing junctions according to an input digital control code. A servo equilibrium results that provides a phase delay of the variable-delay output pulse to the output reference pulse that linearly depends on the input digital control code.

McEwan, Thomas E. (Livermore, CA)

1996-01-01T23:59:59.000Z

153

Cleveland Project Phase 2 | Open Energy Information  

Open Energy Info (EERE)

Phase 2 Phase 2 Jump to: navigation, search Name Cleveland Project Phase 2 Facility Cleveland Project Phase 2 Sector Wind energy Facility Type Offshore Wind Facility Status Proposed Developer Lake Erie Energy Development Corporation Location Lake Erie OH Coordinates 41.725°, -81.802° 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":41.725,"lon":-81.802,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

154

Design and Development of a Test Facility to Study Two-Phase Steam/Water Flow in Porous Media  

SciTech Connect (OSTI)

The concept of relative permeability is the key concept in extending Darcy's law for single phase flow through porous media to the two-phase flow regime. Relative permeability functions are needed for simulation studies of two-phase geothermal reservoirs. These are poorly known inspite of considerable theoretical and experimental investigations during the last decade. Since no conclusive results exist, many investigators use ad hoc parametrization, or adopt results obtined from flow of oil and gas (Corey, 1954). It has been shown by Reda and Eaton (1980) that this can lead to serious deficiencies. Sensitivity of the relative permeability curves for prediction of mass flow rate and flowing enthalpy into geothermal wells has been studied by many investigators (e.g. Eaton and Reda (1980), Bodvarsson et al (1980), Sun and Ershagi (1979) etc.). It can be concluded from these studies that the beehavior of a two-phase steam/water reservoir depends greatly on the relative permeability curves used. Hence, there exists a need for obtaining reliable relative permeability functions.

Verma, Ashok K.; Pruess, Karsten; Bodvarsson, G.S.; Tsang, C.F.; Witherspoon, Paul A.

1983-12-15T23:59:59.000Z

155

Abstract--This work develops a three-phase unbalanced load flow tool tailored for radial distribution networks based  

E-Print Network [OSTI]

) generators where most of the systems are single phase. New ancillary service such as static reactive power, thermal limits of grid components and power losses in radial MV-LV networks with photovoltaic (PV support by PV inverters can be also merged together with the load flow solution tool and thus, the impact

Teodorescu, Remus

156

Phase I Review  

Office of Environmental Management (EM)

Investment Options and Industry Returns - Development Process Overview DOE Office of Indian Energy Tribal Leader Forum Series San Diego, CA May 14, 2014 Outline * Introduction *...

157

Development of Novel active transport membrane devices. Phase I. Final report, 31 October 1988--31 January 1994  

SciTech Connect (OSTI)

The main objective of this program was to identify and develop a technique for fabricating Active Transport Materials (ATM) into lab-scale membrane devices. Air Products met this objective by applying thin film, multilayer fabrication techniques to support the AT material on a substrate membrane. In Phase IA, spiral-wound hollow fiber membrane modules were fabricated and evaluated. These nonoptimized devices were used to demonstrate the AT-based separation of carbon dioxide from methane, hydrogen sulfide from methane, and ammonia from hydrogen. It was determined that a need exists for a more cost efficient and less energy intensive process for upgrading subquality natural gas. Air Products estimated the effectiveness of ATM for this application and concluded that an optimized ATM system could compete effectively with both conventional acid gas scrubbing technology and current membrane technology. In addition, the optimized ATM system would have lower methane loss and consume less energy than current alternative processes. Air Products made significant progress toward the ultimate goal of commercializing an advanced membrane for upgrading subquality natural gas. The laboratory program focused on developing a high performance hollow fiber substrate and fabricating and evaluating ATM-coated lab-scale hollow fiber membrane modules. Selection criteria for hollow fiber composite membrane supports were developed and used to evaluate candidate polymer compositions. A poly(amide-imide), PAI, was identified for further study. Conditions were identified which produced microporous PAI support membrane with tunable surface porosity in the range 100-1000{Angstrom}. The support fibers exhibited good hydrocarbon resistance and acceptable tensile strength though a higher elongation may ultimately be desirable. ATM materials were coated onto commercial and PAI substrate fiber. Modules containing 1-50 fibers were evaluated for permselectivity, pressure stability, and lifetime.

Laciak, D.V.; Quinn, R.; Choe, G.S.; Cook, P.J.; Tsai, Fu-Jya

1994-08-01T23:59:59.000Z

158

Wind Turbine Drivetrain Condition Monitoring During GRC Phase 1 and Phase 2 Testing  

SciTech Connect (OSTI)

This report will present the wind turbine drivetrain condition monitoring (CM) research conducted under the phase 1 and phase 2 Gearbox Reliability Collaborative (GRC) tests. The rationale and approach for this drivetrain CM research, investigated CM systems, test configuration and results, and a discussion on challenges in wind turbine drivetrain CM and future research and development areas, will be presented.

Sheng, S.; Link, H.; LaCava, W.; van Dam, J.; McNiff, B.; Veers, P.; Keller, J.; Butterfield, S.; Oyague, F.

2011-10-01T23:59:59.000Z

159

Engineering development of coal-fired high performance power systems, Phase II and Phase III. Quarter progress report, April 1, 1996--June 30, 1996  

SciTech Connect (OSTI)

Work is presented on the development of a coal-fired high performance power generation system by the year 2000. This report describes the design of the air heater, duct heater, system controls, slag viscosity, and design of a quench zone.

NONE

1996-11-01T23:59:59.000Z

160

Development of a real-time residue number processor for SAFT inspection. Phase II. Final report, September 1984-April 1986  

SciTech Connect (OSTI)

A high speed SAFT imaging system has been designed using residue number system (RNS) computational methods. The imaging system is based on a new frequency domain correlation process applied to conventional pulse-echo ultrasonic data, wherein the data is collected over a two-dimensional aperture. The resulting three-dimensional data set in x, y, and 'time-of-flight' may be processed by the frequency domain SAFT (FSAFT) system in either real-time or batch (post-test) modes. In the real-time mode it is expected that true flaw recognition would be of primary interest and the resulting images would be competitive with current time-domain SAFT (TSAFT) techniques. However, the greatest benefit of FSAFT is for detailed analysis of critical flaw types using the high speed batch or fast inspection mode. The system's performance results from using custom RNS hardware to speed the correlation process, which for typical sub-volumes of 64 x 128 x 400 sample points would execute in 11 seconds. This rapid execution time includes all memory exchange overhead as well as forward and inverse number theoretic transforms (NTTs) and point spread function (PSF) multiplication. The hardware design concentrated on a custom memory management processor and RNS computational modules. A FORTRAN coded software simulation was developed in conjunction with the analysis phase of this effort. It was determined by analysis and simulation that the PSF is the critical element in the effective use of FSAFT for inspection.

Polky, J.N.

1986-05-01T23:59:59.000Z

Note: This page contains sample records for the topic "development phase phase" 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

Computational phase imaging based on intensity transport  

E-Print Network [OSTI]

Light is a wave, having both an amplitude and a phase. However, optical frequencies are too high to allow direct detection of phase; thus, our eyes and cameras see only real values - intensity. Phase carries important ...

Waller, Laura A. (Laura Ann)

2010-01-01T23:59:59.000Z

162

Phase-Transfer Catalysis: Fundamentals I  

Science Journals Connector (OSTI)

Critical to the success of phase-transfer catalytic (PTC) processes are (1) the maximization of the rate of transfer of reactant anions from the aqueous or solid phase to the organic phase, (2) the maximizatio...

Charles M. Starks; Charles L. Liotta; Marc E. Halpern

1994-01-01T23:59:59.000Z

163

Phase-Transfer Catalysis: Fundamentals II  

Science Journals Connector (OSTI)

Phase-transfer catalytic (PTC) systems are characterized by the presence of at least two phases and at least one interfacial region separating the phases [18]. Reactions taking place in such systems usually i...

Charles M. Starks; Charles L. Liotta; Marc E. Halpern

1994-01-01T23:59:59.000Z

164

A phase-field study of ternary multiphase microstructures  

E-Print Network [OSTI]

A diffuse-interface model for microstructures with an arbitrary number of components and phases was developed from basic thermodynamic and kinetic principles and applied to the study of ternary eutectic phase transformations. ...

Cogswell, Daniel A. (Daniel Aaron)

2010-01-01T23:59:59.000Z

165

Liquid-Phase Combinatorial Synthesis Technique Could Ease Automation  

Science Journals Connector (OSTI)

A liquid-phase combinatorial synthesis technique developed by researchers at Scripps Research Institute, La Jolla, Calif., could provide advantages over existing solid-phase technology and ease automation of combinatorial techniques.Combinatorial ...

STU BORMAN

1995-07-31T23:59:59.000Z

166

Analysis and design of some new single phase to three phase static converters  

E-Print Network [OSTI]

three phase ac motor. In Chapter III, four single phase to three phase converters for fixed frequency, fixed voltage operation is proposed. They are divided into two categories: (a) half-bridge converters and (b) full-bridge converters. Suitable...? Experimental results oi' the half-bridge single phase to three phase con- verter. . . . . . . . , . . . . . . . . 58 CHAPTER I INTRODUCTION Single phase to three phase converters are widely used where three phase ac motors need to be operated from a...

Rahman, Ashek

2012-06-07T23:59:59.000Z

167

Solano Phase 3 | Open Energy Information  

Open Energy Info (EERE)

Phase 3 Phase 3 Jump to: navigation, search Name Solano Phase 3 Facility Solano Phase 3 Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner Sacramento Municipal Utility District Developer Sacramento Municipal Utility District Energy Purchaser Sacramento Municipal Utility District Location Birds Landing CA Coordinates 38.12672486°, -121.8601799° 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":38.12672486,"lon":-121.8601799,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

168

Tillamook Windfloat Phase 1 | Open Energy Information  

Open Energy Info (EERE)

Windfloat Phase 1 Windfloat Phase 1 Jump to: navigation, search Name Tillamook Windfloat Phase 1 Facility Tillamook Windfloat Phase 1 Sector Wind energy Facility Type Offshore Wind Facility Status Proposed Owner Principle Power Developer Principle Power Location Pacific Ocean OR Coordinates 45.54°, -124.156° 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":45.54,"lon":-124.156,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

169

Windy Flats Phase III | Open Energy Information  

Open Energy Info (EERE)

Phase III Phase III Jump to: navigation, search Name Windy Flats Phase III Facility Windy Flats Phase III Sector Wind energy Facility Type Commercial Scale Wind Facility Status Proposed Owner Cannon Power Group Developer Cannon Power Group Location Goldendale WA Coordinates 45.76201437°, -120.5455971° 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":45.76201437,"lon":-120.5455971,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

170

Laser Crystallization of Phase Change Material  

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

Geoffrey Campbell is the Principal Investigator for Laser Crystallization of Phase Change Material LLNL BES Programs Highlight Laser Crystallization of Phase Change Material False...

171

Protection of Li Anodes Using Dual Phase Electrolytes  

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

cells with high energy anode and dual-phase electrolyte systems Partners BASF SE, Germany * Development of Li-S battery materials 3 Relevance. Project Objectives. * Develop a...

172

LABCOM resonator Phase 3  

SciTech Connect (OSTI)

The purpose of this project was to develop quartz crystal resonator designs, production processes, and test capabilities for 5-MHz, 6.2-MHz, and 10-MHz resonators for Tactical Miniature Crystal Oscillator (TMXO) applications. GE Neutron Devices (GEND) established and demonstrated the capability to produce and test quartz crystal resonators for use in the TMXO developed by the US Army ERADCOM (now LABCOM). The goals in this project were based on the ERADCOM statement of work. The scope of work indicated that the resonator production facilities for this project would not be completely independent, but that they would be supported in part by equipment and processes in place at GEND used in US Department of Energy (DOE) work. In addition, provisions for production test equipment or or eventual technology transfer costs to a commercial supplier were clearly excluded from the scope of work. The demonstrated technical capability of the deep-etched blank design is feasible and practical. It can be manufactured in quantity with reasonable yield, and its performance is readily predictable. The ceramic flatpack is a very strong package with excellent hermeticity. The four-point mount supports the crystal to reasonable shock levels and does not perturb the resonator's natural frequency-temperature behavior. The package can be sealed with excellent yields. The high-temperature, high-vacuum processing developed for the TMXO resonator, including bonding the piezoid to its mount with conductive polyimide adhesive, is consistent with precision resonator fabrication. 1 fig., 6 tabs.

Keres, L.J.

1990-11-01T23:59:59.000Z

173

Development of a pilot-scale kinetic extruder feeder system and test program. Phase II. Verification testing. Final report  

SciTech Connect (OSTI)

This report describes the work done under Phase II, the verification testing of the Kinetic Extruder. The main objective of the test program was to determine failure modes and wear rates. Only minor auxiliary equipment malfunctions were encountered. Wear rates indicate useful life expectancy of from 1 to 5 years for wear-exposed components. Recommendations are made for adapting the equipment for pilot plant and commercial applications. 3 references, 20 figures, 12 tables.

Not Available

1984-01-12T23:59:59.000Z

174

Cummins Power Generation SECA Phase 1  

SciTech Connect (OSTI)

The following report documents the progress of the Cummins Power Generation (CPG) SECA Phase 1 SOFC development and final testing under the U.S. Department of Energy Solid State Energy Conversion Alliance (SECA) contract DE-FC26-01NT41244. This report overviews and summarizes CPG and partner research development leading to successful demonstration of the SECA Phase 1 objectives and significant progress towards SOFC commercialization. Significant Phase 1 Milestones: (1) Demonstrated: (a) Operation meeting Phase 1 requirements on commercial natural gas. (b) LPG and Natural Gas CPOX fuel reformers. (c) SOFC systems on dry CPOX reformate. (c) Steam reformed Natural Gas operation. (d) Successful start-up and shut-down of SOFC system without inert gas purge. (e) Utility of stack simulators as a tool for developing balance of plant systems. (2) Developed: (a) Low cost balance of plant concepts and compatible systems designs. (b) Identified low cost, high volume components for balance of plant systems. (c) Demonstrated high efficiency SOFC output power conditioning. (d) Demonstrated SOFC control strategies and tuning methods. The Phase 1 performance test was carried out at the Cummins Power Generation facility in Minneapolis, Minnesota starting on October 2, 2006. Performance testing was successfully completed on January 4, 2007 including the necessary steady-state, transient, efficiency, and peak power operation tests.

Charles Vesely

2007-08-17T23:59:59.000Z

175

Phase appearance or disappearance in two-phase flows  

E-Print Network [OSTI]

in a large variety of industrial or natural systems involving boiling or condensing fluids, reacting flows-phase flows. Such models have crucial importance in many industrial areas such as nuclear power plant safety considered. Numerical results are presented which demonstrate the efficiency of the proposed solutions. Key

Boyer, Edmond

176

Ising model: secondary phase transition  

E-Print Network [OSTI]

Lttice-spin phonons are considered, which make the heat capacity at the critical temperature satisfy experimental observations better. There is a BEC phase transition in an Ising model attributable to the lattice-spin phonons. We proved that the spin-wave theory only is available after BEC transition, and the magnons have the same characteristics as the lattice-spin phonons', resulting from quantum effect. Energy-level overlap effect at ultralow temperature is found. A prediction of BEC phase transition in a crystal is put forward as our theory generalization.

You-gang Feng

2012-04-09T23:59:59.000Z

177

Acoustically enhanced remediation, Phase 2: Technology scaling  

SciTech Connect (OSTI)

Weiss Associates is conducting the following three phase program investigating the in-situ application of acoustically enhanced remediation (AER) of contaminated unconsolidated soil and ground water under both saturated and unsaturated conditions: Phase I-- laboratory scale parametric investigation; Phase II--technology Scaling; and Phase III--large scale field tests. AER addresses the need for NAPL (either lighter or denser than water: LNAPL or DNAPL, respectively) in high and low permeability sediments, and the remediation of other types of subsurface contaminants (e.g., metals, radionuclides) in low permeability soils. This program has been placed in the U.S. Department of Energy`s (DOE`s) DNAPL product. Phase I indicated that AER could be used to effectively remediate NAPL in high permeability soil, and that removal of NAPL from low permeability soil could be increased since the water flux through these soils was significantly increased. Phase II, Technology Scaling, the subject of this paper, focused on (1) evaluating the characteristics of an AER field deployment system, (2) developing DNAPL flow and transport performance data under acoustic excitation, (3) predicting the effect of acoustic remediation in three-dimensional unconsolidated hydrogeologic conditions, (4) conducting an engineering analysis of acoustical sources, and (5) identifying candidate field site(s) for large-scale field testing of the technology.

Iovenitti, J.L.; Hill, D.G. [Weiss Associates, Emeryville, CA (United States); Rynne, T.M.; Spadaro, J.F.; Hutchinson, W. [Scientific Applications and Research Associates, Inc., Huntington Beach, CA (United States); Illangasakere, T. [Colorado Univ., Boulder, CO (United States). Dept. of Civil, Environmental, and Architectural Engineering

1996-12-31T23:59:59.000Z

178

Overpotential-Dependent Phase Transformation Pathways  

SciTech Connect (OSTI)

An objective in battery development for higher storage energy density is the design of compounds that can accommodate maximum changes in ion concentration over useful electrochemical windows. Not surprisingly, many storage compounds undergo phase transitions in situ, including production of metastable phases. Unique to this environment is the frequent application of electrical over- and underpotentials, which are the electrical analogs to undercooling and superheating. Surprisingly, overpotential effects on phase stability and transformation mechanisms have not been studied in detail. Here we use synchrotron X-ray diffraction performed in situ during potentiostatic and galvanostatic cycling, combined with phase-field modeling, to reveal a remarkable dependence of phase transition pathway on overpotential in the model olivine Li{sub 1-x}FePO{sub 4}. For a sample of particle size {approx}113 nm, at both low (e.g., <20 mV) and high (>75 mV) overpotentials a crystal-to-crystal olivine transformation dominates, whereas at intermediate overpotentials a crystalline-to-amorphous phase transition is preferred. As particle sizes decrease to the nanoscale, amorphization is further emphasized. Implications for battery use and design are considered.

Y Kao; M Tang; N Meethong; J Bai; W Carter; Y Chiang

2011-12-31T23:59:59.000Z

179

Development of a method for building life cycle analysis at an early design phase - Implementation in a tool - Sensitivity and uncertainty of such a method in comparison to detailed LCA software.  

E-Print Network [OSTI]

??The thesis presents in detail the various steps in the development of an early design phase method for the LCA of buildings. After an introduction (more)

Chouquet, Julie

2007-01-01T23:59:59.000Z

180

Phase Errors and the Capture Effect  

SciTech Connect (OSTI)

This slide-show presents analysis of spectrograms and the phase error of filtered noise in a signal. When the filtered noise is smaller than the signal amplitude, the phase error can never exceed 90{deg}, so the average phase error over many cycles is zero: this is called the capture effect because the largest signal captures the phase and frequency determination.

Blair, J., and Machorro, E.

2011-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "development phase phase" 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

Woods In and Around Towns: Phase II  

E-Print Network [OSTI]

Policy WIAT Woods In and Around Towns: Phase II #12;2 | Woods In and Around Towns: Phase II working with Forestry Commission Scotland on Woods In and Around Towns #12;Woods In and Around Towns: Phase II Woods In and Around Towns: Phase II | 3 What is this about? The Woods In and Around Towns (WIAT) Programme provides

182

Instantons in the Higgs phase  

SciTech Connect (OSTI)

When instantons are put into the Higgs phase, vortices are attached to instantons. We construct such composite solitons as 1/4 BPS states in five-dimensional supersymmetric U(N{sub C}) gauge theory with N{sub F}({>=}N{sub C}) fundamental hypermultiplets. We solve the hypermultiplet BPS equation and show that all 1/4 BPS solutions are generated by an N{sub C}xN{sub F} matrix which is holomorphic in two complex variables, assuming the vector multiplet BPS equation does not give additional moduli. We determine the total moduli space formed by topological sectors patched together and work out the multi-instanton solution inside a single vortex with complete moduli. Small instanton singularities are interpreted as small sigma-model lump singularities inside the vortex. The relation between monopoles and instantons in the Higgs phase is also clarified as limits of calorons in the Higgs phase. Another type of instantons stuck at an intersection of two vortices and dyonic instantons in the Higgs phase are also discussed.

Eto, Minoru; Isozumi, Youichi; Nitta, Muneto; Ohashi, Keisuke; Sakai, Norisuke [Department of Physics, Tokyo Institute of Technology, Tokyo 152-8551 (Japan)

2005-07-15T23:59:59.000Z

183

Phase and birefringence aberration correction  

DOE Patents [OSTI]

A Brillouin enhanced four wave mixing phase conjugate mirror corrects phase aberrations of a coherent electromagnetic beam and birefringence induced upon that beam. The stimulated Brillouin scattering (SBS) phase conjugation technique is augmented to include Brillouin enhanced four wave mixing (BEFWM). A seed beam is generated by a main oscillator which arrives at the phase conjugate cell before the signal beams in order to initiate the Brillouin effect. The signal beam which is being amplified through the amplifier chain is split into two perpendicularly polarized beams. One of the two beams is chosen to be the same polarization as some component of the seed beam, the other orthogonal to the first. The polarization of the orthogonal beam is then rotated 90.degree. such that it is parallel to the other signal beam. The three beams are then focused into cell containing a medium capable of Brillouin excitation. The two signal beams are focused such that they cross the seed beam path before their respective beam waists in order to achieve BEFWM or the two signal beams are focused to a point or points contained within the focused cone angle of the seed beam to achieve seeded SBS, and thus negate the effects of all birefringent and material aberrations in the system.

Bowers, Mark (Modesto, CA); Hankla, Allen (Livermore, CA)

1996-01-01T23:59:59.000Z

184

Two Flavour QCD Phase Transition  

E-Print Network [OSTI]

Results on the phase transition in QCD with two flavours of light staggered fermions from an ongoing simulation are presented. We find the restoration of the chiral SU(2) x SU(2) symmetry, but not of the axial U_A(1) symmetry.

G. Boyd; F. Karsch; E. Laermann; M. Oevers

1996-07-20T23:59:59.000Z

185

Program predicts two-phase pressure gradients  

SciTech Connect (OSTI)

The calculator program discussed, ORK, was designed for the HP-41CV hand-held calculator and uses the Orkiszewski correlation for predicting 2-phase pressure gradients in vertical tubulars. Accurate predictions of pressure gradients in flowing and gas lift wells over a wide range of well conditions can be obtained with this method, which was developed based on data from 148 wells. The correlation is one of the best generalized 2-phase pressure gradient prediction methods developed to date for vertical flow. It is unique in that hold-up is derived from observed physical phenomena, and the pressure gradient is related to the geometrical distribution of the liquid and gas phase (flow regime).

Jacks, D.C.; Hill, A.D.

1983-11-18T23:59:59.000Z

186

Phase behavior of polymers and monomers  

E-Print Network [OSTI]

perspective. Objective The objective of this study is to investigate the phase behavior of monomer- solvent and copolymer-solvent mixtures at elevated pressures. Supercritical ethylene will be the solvent used throughout the experiment to simulate... phase region within the reactor. The transition of the polymers from a single phase solution in the ethylene supercritical fluid solvent into two phases is referred to as the "cloud point. " Phase diagrams produced from the pressure and temperature...

Purifoy, Jonathan Patrick

1998-01-01T23:59:59.000Z

187

The "extended phase space" approach to quantum geometrodynamics: what can it give for the development of quantum gravity?  

E-Print Network [OSTI]

The talk is devoted to the "extended phase space" approach to Quantum Geometrodynamics. The premises that have led to the formulation of this approach are briefly reviewed, namely, non-trivial topology of the Universe which implies the absence of asymptotic states, in contrast to situations one usually deals in ordinary quantum field theory; parametrization noninvariance in the Wheeler - DeWitt theory; the problem of time and the absence of dynamical evolution. Then we discuss the main features of the approach: Hamiltonian dynamics in extended phase space, gauge-dependent Schrodinger equation for the wave function of the Universe, the description of quantum Universe from the viewpoint of observers in a wide enough class of reference frames. After all, we analyse problems arising in this approach: the structure of Hilbert space in Quantum Geometrodynamics, the relations between solutions for the wave function of the Universe corresponding to various reference frames, properties of a medium to be necessary to fix a reference frame, the transition to classical limit.

T. P. Shestakova

2008-10-22T23:59:59.000Z

188

Pure Phase Solubility Limits: LANL  

SciTech Connect (OSTI)

The natural and engineered system at Yucca Mountain (YM) defines the site-specific conditions under which one must determine to what extent the engineered and the natural geochemical barriers will prevent the release of radioactive material from the repository. Most important mechanisms for retention or enhancement of radionuclide transport include precipitation or co-precipitation of radionuclide-bearing solid phases (solubility limits), complexation in solution, sorption onto surfaces, colloid formation, and diffusion. There may be many scenarios that could affect the near-field environment, creating chemical conditions more aggressive than the conditions presented by the unperturbed system (such as pH changes beyond the range of 6 to 9 or significant changes in the ionic strength of infiltrated waters). For an extended period of time, the near-field water composition may be quite different and more extreme in pH, ionic strength, and CO{sub 2} partial pressure (or carbonate concentration) than waters at some distance from the repository. Reducing conditions, high pH (up to 11), and low carbonate concentration may be present in the near-field after reaction of infiltrating groundwater with engineered barrier systems, such as cementitious materials. In the far-field, conditions are controlled by the rock-mass buffer providing a near-neutral, oxidizing, low-ionic-strength environment that controls radionuclide solubility limits and sorption capacities. There is the need for characterization of variable chemical conditions that affect solubility, speciation, and sorption reactions. Modeling of the groundwater chemistry is required and leads to an understanding of solubility and speciation of the important radionuclides. Because experimental studies cannot be performed under the numerous potential chemical conditions, solubility limitations must rely on geochemical modeling of the radionuclide's chemistry. Fundamental thermodynamic properties, such as solubility products, complex stability constants, and redox potentials for radionuclides in different oxidation states, form the underlying database to be used for those calculations. The potentially low solubilities of many radionuclides in natural waters constitute the first barrier for their migration from the repository into the environment. Evaluation of this effect requires a knowledge of the site-specific water chemistry and the expected spatial and temporal ranges of its variability. Quantitative determinations of radionuclide solubility in waters within the range of chemistry must be made. Speciation and molecular complexation must be ascertained to interpret and apply solubility results. The solubilities thus determined can be used to assess the effectiveness of solubility in limiting radionuclide migration. These solubilities can also be used to evaluate the effectiveness of other retardation processes expected to occur once dissolution of the source material and migration begin. Understanding the solubility behavior of radionuclides will assist in designing valuable sorption experiments that must be conducted below the solubility limit since only soluble species participate in surface reactions and sorption processes. The present strategy for radionuclide solubility tasks has been to provide a solubility model from bulk-experiments that attempt to bracket the estimate made for this Analysis and Modeling Report (AMR) of water conditions on site. The long-term goal must be to develop a thermodynamic database for solution speciation and solid-state determination as a prerequisite for transport calculations and interpretation of empirical solubility data. The model has to be self-consistent and tested against known solubility studies in order to predict radionuclide solubilities over the continuous distribution ranges of potential water compositions for performance assessment of the site. Solubility studies upper limits for radionuclide concentrations in natural waters. The concentration in the aqueous phase is controlled by the radionuclide-bearing solid phase and by

C. Stockman

2001-01-26T23:59:59.000Z

189

Fluid Phase Equilibria 218 (2004) 221228 Phase equilibrium in aqueous two-phase systems containing ethylene  

E-Print Network [OSTI]

ethylene oxide­propylene oxide block copolymers and dextran Eduardo dos Santos Tadaa, Watson Loha,1, Pedro equilibrium of aqueous two-phase systems containing the polysaccharide dextran and ethylene oxide (EO; Data; Dextran; Ethylene oxide­propylene oxide block copolymers; Gibbs energy; Thermodynamic modeling 1

Loh, Watson

190

High performance steam development. Final report, Phase No. 3: 1500{degree}F steam plant for industrial cogeneration prototype development tests  

SciTech Connect (OSTI)

As a key part of DOE`s and industry`s R&D efforts to improve the efficiency, cost, and emissions of power generation, a prototype High Performance Steam System (HPSS) has been designed, built, and demonstrated. The world`s highest temperature ASME Section I coded power plant successfully completed over 100 hours of development tests at 1500{degrees}F and 1500 psig on a 56,000 pound per hour steam generator, control valve and topping turbine at an output power of 5500 hp. This development advances the HPSS to 400{degrees}F higher steam temperature than the current best technology being installed around the world. Higher cycle temperatures produce higher conversion efficiencies and since steam is used to produce the large majority of the world`s power, the authors expect HPSS developments will have a major impact on electric power production and cogeneration in the twenty-first century. Coal fueled steam plants now produce the majority of the United States electric power. Cogeneration and reduced costs and availability of natural gas have now made gas turbines using Heat Recovery Steam Generators (HRSG`s) and combined cycles for cogeneration and power generation the lowest cost producer of electric power in the United States. These gas fueled combined cycles also have major benefits in reducing emissions while reducing the cost of electricity. Development of HPSS technology can significantly improve the efficiency of cogeneration, steam plants, and combined cycles. Figure 2 is a TS diagram that shows the HPSS has twice the energy available from each pound of steam when expanding from 1500{degrees}F and 1500 psia to 165 psia (150 psig, a common cogeneration process steam pressure). This report describes the prototype component and system design, and results of the 100-hour laboratory tests. The next phase of the program consists of building up the steam turbine into a generator set, and installing the power plant at an industrial site for extended operation.

Duffy, T.; Schneider, P.

1996-01-01T23:59:59.000Z

191

Phase Transition in a Model Gravitating System  

Science Journals Connector (OSTI)

We present recent developments in the study of an interacting gravitational system of concentric, spherical, mass shells. The existence of two distinct phases is demonstrated. The nature of the transition in the microcanonical, canonical, and grand canonical ensembles is studied both theoretically in terms of mean field theory and via dynamical simulation. Striking differences are found in each environment, especially the last.

Bruce N. Miller and Paige Youngkins

1998-11-30T23:59:59.000Z

192

TWRS Privatization Phase 1 Master Site Plan  

SciTech Connect (OSTI)

This document provides a reference for the development of the Tank Waste Remediation System (TWRS) Privatization Phase I site (former Grout Disposal Compound) and the upgrades and extension to the site of the 200 East Area inter- and intra-area roads and various utilities.

PARAZIN, R.J.

1999-08-16T23:59:59.000Z

193

Development of a coal-fired combustion system for industrial process heating applications. Phase 3 final report, November 1992--December 1994  

SciTech Connect (OSTI)

A three phase research and development program has resulted in the development and commercialization of a Cyclone Melting System (CMS{trademark}), capable of being fueled by pulverized coal, natural gas, and other solid, gaseous, or liquid fuels, for the vitrification of industrial wastes. The Phase 3 research effort focused on the development of a process heater system to be used for producing value added glass products from the vitrification of boiler/incinerator ashes and industrial wastes. The primary objective of the Phase 3 project was to develop and integrate all the system components, from fuel through total system controls, and then test the complete system in order to evaluate its potential for successful commercialization. The demonstration test consisted of one test run with a duration of 105 hours, approximately one-half (46 hours) performed with coal as the primary fuel source (70% to 100%), the other half with natural gas. Approximately 50 hours of melting operation were performed vitrifying approximately 50,000 lbs of coal-fired utility boiler flyash/dolomite mixture, producing a fully-reacted vitrified product.

NONE

1995-09-26T23:59:59.000Z

194

Phase transformations in engineering materials  

SciTech Connect (OSTI)

Phase transformations in engineering materials are inevitably related to mechanical behavior and are often precursors to residual stress and distortion. Neutron scattering in general is a valuable tool for studying their effects, and pulsed neutrons are of special value, because of the inherently comprehensive crystallographic coverage they provide in each measurement. At the Manuel Lujan neutron scattering center several different research programs have addressed the relationships between phase transformation/mechanical behavior and residual strains. Three disparate examples are presented; (1) stress induced transformation in a NiTi shape memory alloy, (2) cryogenically induced transformation in a quenched 5180 steel, and (3) time resolved evolution of strain induced martensite in 304 stainless steel. In each case a brief description of the principle result will be discussed in the context of using neutrons for the measurement.

Bourke, M.A.M.; Lawson, A.C. [Los Alamos National Lab., NM (United States); Dunand, D.C. [Massachusetts Inst. of Tech., Cambridge, MA (United States). Dept. of Materials Science and Engineering; Priesmeyer, H.G. [GKSS-Forschungszentrum Geesthacht GmbH (Germany)

1996-06-01T23:59:59.000Z

195

Is the beta phase maximal?  

SciTech Connect (OSTI)

indicates that 2|Vub / Vcb/ Vus| = (1-z) with z given by z = 0.19 +(-) 0.14. This fact implies that irrespective of the form of the quark Yukawa matrices, the measured value of the SM CP phase beta is approximately the maximum allowed by the measured absolute values of the CKM elements. This is beta = pi/6 - z/sqrt{3} for gamma = pi/3 + z/sqrt{3}, which implies alpha = pi/2. Alternatively, assuming that beta is exactly maximal and using the experimental measurement, sin(2beta) = 0.726+(-) 0.037, the phase gamma is predicted to be gamma = pi/2 - beta = 66.3 +(-) 1.7. The maximality of beta, if confirmed by the near-future experiments, may give us some clues as to the origin of CP violation.

Ferrandis, Javier; Ferrandis, Javier

2005-04-20T23:59:59.000Z

196

Light-driven phase shifter  

DOE Patents [OSTI]

A light-driven phase shifter is provided for modulating a transmission light beam. A gaseous medium such as argon is provided with electron energy states excited to populate a metastable state. A tunable dye laser is selected with a wavelength effective to deplete the metastable electron state and may be intensity modulated. The dye laser is directed through the gaseous medium to define a first optical path having an index of refraction determined by the gaseous medium having a depleted metastable electron state. A transmission laser beam is also directed through the gaseous medium to define a second optical path at least partially coincident with the first optical path. The intensity of the dye laser beam may then be varied to phase modulate the transmission laser beam.

Early, James W. (Los Alamos, NM)

1990-01-01T23:59:59.000Z

197

KODE Novus Phase I | Open Energy Information  

Open Energy Info (EERE)

KODE Novus Phase I KODE Novus Phase I Facility KODE Novus Phase I Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner DeWind Developer DeWind Energy Purchaser Xcel Energy Location Guymon OK Coordinates 36.530381°, -101.365947° 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":36.530381,"lon":-101.365947,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

198

KODE Novus Phase II | Open Energy Information  

Open Energy Info (EERE)

KODE Novus Phase II KODE Novus Phase II Facility KODE Novus Phase II Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner DeWind Developer DeWind Energy Purchaser Xcel Energy Location Guymon OK Coordinates 36.53170885°, -101.3325691° 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":36.53170885,"lon":-101.3325691,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

199

ICCS Area 2, Phase 2 Renewal Applications  

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

10, 2010 10, 2010 1. When does Phase II start date? Assume July 1? Answer: Per the FOA, "Projects that are selected for Phase 2 will receive no more than a 4 month extension to Phase 1 to allow DOE and the Phase 2 Recipient(s) sufficient time to negotiate the full scope and budget for Phase 2. DOE reserves the right to award Phase 2 anytime during this 4 month period". DOE will not extend a Phase 1 project beyond September 30, 2010; therefore, it is likely that no more than a 3 month extension will be provided. Further, depending upon the positive cooperation and responsiveness of the Phase 2 Recipient, DOE will be able to make the full Phase 2 award more quickly. Any start date proposed by the Recipient is subject to negotiation with DOE if the project is selected.

200

Thermophysical properties of coexistent phases of plutonium  

SciTech Connect (OSTI)

Plutonium is the element with the greatest number of allotropic phases. Thermally induced transformations between these phases are typically characterized by thermal hysteresis and incomplete phase reversion. With Ga substitutal in the lattice, low symmetry phases are replaced by a higher symmetry phase. However, the low temperature Martensitic phase transformation ({delta} {yields} {alpha}{prime}) in Ga stabilized {delta}-phase Pu is characterized by a region of thermal hysteresis which can reach 200 C in extent. These regions of thermal hysteresis offer a unique opportunity to study thermodynamics in inhomogeneous systems of coexistent phases. The results of thermophysical properties measured for samples of inhomogeneous unalloyed and Ga alloyed Pu will be discussed and compared with similar measurements of their single phase constituents.

Freibert, Franz J [Los Alamos National Laboratory; Mitchell, Jeremy N [Los Alamos National Laboratory; Saleh, Tarik A [Los Alamos National Laboratory; Schwartz, Dan S [Los Alamos National Laboratory

2009-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "development phase phase" 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

Development of a 10 kW High Temperature High Power Density Three-Phase AC-DC-AC SiC Converter  

SciTech Connect (OSTI)

This paper presents the development and experimental performance of a 10 kW, all SiC, 250 C junction temperature high-power-density three-phase ac-dc-ac converter. The electromagnetic interference filter, thermal system, high temperature package, and gate drive design are discussed in detail. Finally, tests confirming the feasibility and validating the theoretical basis of the prototype converter system are described.

Ning, Puqi [ORNL

2012-01-01T23:59:59.000Z

202

Phase transition mastering for Blu-ray ROM disc  

Science Journals Connector (OSTI)

Phase Transition Mastering (PTM) has been developed for a 25 GB Blue-ray ROM Disc. The principle and the characteristics will be described in detail.

Osato, Kiyoshi

203

Phase change material storage heater  

DOE Patents [OSTI]

A storage heater for storing heat and for heating a fluid, such as water, has an enclosure defining a chamber therein. The chamber has a lower portion and an upper portion with a heating element being disposed within the enclosure. A tube through which the fluid flows has an inlet and an outlet, both being disposed outside of the enclosure, and has a portion interconnecting the inlet and the outlet that passes through the enclosure. A densely packed bed of phase change material pellets is disposed within the enclosure and is surrounded by a viscous liquid, such as propylene glycol. The viscous liquid is in thermal communication with the heating element, the phase change material pellets, and the tube and transfers heat from the heating element to the pellets and from the pellets to the tube. The viscous fluid has a viscosity so that the frictional pressure drop of the fluid in contact with the phase change material pellets substantially reduces vertical thermal convection in the fluid. As the fluid flows through the tube heat is transferred from the viscous liquid to the fluid flowing through the tube, thereby heating the fluid.

Goswami, D. Yogi (Gainesville, FL); Hsieh, Chung K. (Gainesville, FL); Jotshi, Chand K. (Gainesville, FL); Klausner, James F. (Gainesville, FL)

1997-01-01T23:59:59.000Z

204

Noble metals-compatible melter features development Phase 1: Establishing functional and design criteria and design concepts  

SciTech Connect (OSTI)

Premature failures have occurred in melters at Japan`s Tokai Mockup Facility and at the Federal Republic of Germany (FRG) PAMELA plant during processing of feeds with high levels of noble metals. Melter failure was due to the accumulation of an electrically conductive, noble metals-containing precipitates in the glass, that then resulted in short circuiting of the electrodes. A comparison was made of the anticipated Hanford Waste Vitrification Plant (HWVP) feed with the feeds processed in the FRG and Japanese melters. The evaluation showed that comparable levels of noble metals and other potential precipitate-forming components (e.g. Cr/Fe/Ni-spinels) exist in the HWVP feed. As a result, the HWVP project made a decision to modify the present reference melter design to include features to prevent the precipitation and accumulation or otherwise accommodate precipitated phases on a routine basis without loss of production capacity.

Elmore, M.R.; Siemens, D.H.; Chapman, C.C.

1996-03-01T23:59:59.000Z

205

Ponderomotive phase plate for transmission electron microscopes  

DOE Patents [OSTI]

A ponderomotive phase plate system and method for controllably producing highly tunable phase contrast transfer functions in a transmission electron microscope (TEM) for high resolution and biological phase contrast imaging. The system and method includes a laser source and a beam transport system to produce a focused laser crossover as a phase plate, so that a ponderomotive potential of the focused laser crossover produces a scattering-angle-dependent phase shift in the electrons of the post-sample electron beam corresponding to a desired phase contrast transfer function.

Reed, Bryan W. (Livermore, CA)

2012-07-10T23:59:59.000Z

206

Property:Implementation Phase | Open Energy Information  

Open Energy Info (EERE)

Implementation Phase Implementation Phase Jump to: navigation, search This is a property of type String. The allowed values for this property are: Bring the Right People Together Create a Vision Determine Baseline Evaluate Options Develop Goals Prepare a Plan Get Feedback Develop Finance and Implement Projects Create Early Successes Evaluate Effectiveness and Revise as Needed Subproperties This property has the following 30 subproperties: A AGI-32 C Climate Leadership in Parks (CLIP) Community Energy Planning A Guide for Communities Volume 2 - The Community Energy Plan Community Energy Planning A Resource Guide for Remote Communities in Canada Community Energy Planning Tool Community Greening: How to Develop a Strategic Plan D Development of Agency Reduction Targets Does Cogeneration Make Sense for Me?

207

X-ray studies of the phases and phase transitions of liquid crystals  

Science Journals Connector (OSTI)

Recent X-ray diffraction studies of liquid crystals are reviewed. The topics are twist grain-boundary phases, antiferroelectric phases studied using resonant diffraction and smectic phases within gel structures.

Clegg, P.S.

2004-12-22T23:59:59.000Z

208

An integer programming approach to the phase problem for centrosymmetric structures  

Science Journals Connector (OSTI)

An integer programming formulation and a direct method for the phase problem are developed for centrosymmetric structures. This approach solves the phase problem entirely in reciprocal space.

Vaia, A.

2003-08-29T23:59:59.000Z

209

Inflow performance relationship curves in two-phase and three-phase flow conditions  

SciTech Connect (OSTI)

This research investigates inflow performance relationship IPR curves for two and three-phase flow conditions, using a one-dimensional, three-phase cylindrical reservoir simulator. Using the simulator, a new method for predicting future IPR curves was developed. IPR curves for two-phase flow conditions from a well producing from low permeability formations are also presented. The purpose of this investigation is to predict the IPR curves at pseudo-steady state conditions using flowing test data obtained during the transient period. The new equations have also been applied to data from the simulator with good agreement. Three-phase IPR curves are also determined by using the simulator, and seven different hypothetical three-phase reservoir cases were studied. Three-hundred and eighty five data points were collected using 5 different values of water cut. Regression analysis techniques were applied to the data points and the new equations for predicting the three-phase IPR curves were developed. Comparison of the new equations to results from the simulator show excellent agreement.

Sukarno, P.

1986-01-01T23:59:59.000Z

210

Phase synchronization analysis by assessment of the phase difference gradient Martin Vejmelka  

E-Print Network [OSTI]

of rhythms of self-sustained oscillatory systems. Typically when trying to identify phase synchronization of coupled self-sustained oscillatory systems, phase synchronization, given by a relation

Savicky, Petr

211

FCH Optical Phase-Locked Loop  

E-Print Network [OSTI]

¦ î ¤ ü ? ø Ð Ð ú ¸ ? í ® FCH Optical Phase- Locked Loop? ? û ³ è Optimization of Optica1 Phase

Choi, Woo-Young

212

The post-spinel phase of forsterite  

Science Journals Connector (OSTI)

... in MgSiO3 (ref. 6), I had not doubted the interpretation of the post-spinel phase for Mg2SiO4 as representing mixed oxides. A schematic isothermal phase diagram for the ... as follows

LIN-GUN LIU

1976-08-26T23:59:59.000Z

213

Basic Concepts in Phase-Transfer Catalysis  

Science Journals Connector (OSTI)

Phase-transfer catalysis (PTC) is a powerful tool in many areas of chemistry. It is a technique for conducting reactions between two or more reagents in two or more phases, when reaction is inhibited because t...

Charles M. Starks; Charles L. Liotta; Marc E. Halpern

1994-01-01T23:59:59.000Z

214

Phase diagram Ag-Cu-Ge  

Science Journals Connector (OSTI)

This document is part of Subvolume A Nonequilibrium Phase Diagrams of Ternary Amorphous Alloys of Volume 37 Phase Diagrams and Physical Properties of Nonequilibrium Alloys of Landolt-Brnstein - Group III ...

Y. Kawazoe; T. Masumoto; K. Suzuki; A. Inoue

1997-01-01T23:59:59.000Z

215

Phase diagram Al-Ge-V  

Science Journals Connector (OSTI)

This document is part of Subvolume A Nonequilibrium Phase Diagrams of Ternary Amorphous Alloys of Volume 37 Phase Diagrams and Physical Properties of Nonequilibrium Alloys of Landolt-Brnstein - Group III ...

Y. Kawazoe; T. Masumoto; K. Suzuki; A. Inoue

1997-01-01T23:59:59.000Z

216

Phase diagram Au-Ge-Si  

Science Journals Connector (OSTI)

This document is part of Subvolume A Nonequilibrium Phase Diagrams of Ternary Amorphous Alloys of Volume 37 Phase Diagrams and Physical Properties of Nonequilibrium Alloys of Landolt-Brnstein - Group III ...

Y. Kawazoe; T. Masumoto; K. Suzuki; A. Inoue

1997-01-01T23:59:59.000Z

217

Phase diagram Al-Ge-Mn  

Science Journals Connector (OSTI)

This document is part of Subvolume A Nonequilibrium Phase Diagrams of Ternary Amorphous Alloys of Volume 37 Phase Diagrams and Physical Properties of Nonequilibrium Alloys of Landolt-Brnstein - Group III ...

Y. Kawazoe; T. Masumoto; K. Suzuki; A. Inoue

1997-01-01T23:59:59.000Z

218

Phenomenological theories of ferroelectric phase transitions  

E-Print Network [OSTI]

Phenomenological theories of ferroelectric phase transitions W. Cao parameter in the free energy expansion, phenomenological theory can also describe inhomogeneous structures appear-Phenomenological parent and product phases. phenomenological theories in multidimensions for describ-Phenomenological

Cao, Wenwu

219

Subcritical Fluctuations at the Electroweak Phase Transition  

E-Print Network [OSTI]

We study the importance of thermal fluctuations during the electroweak phase transition. We evaluate in detail the equilibrium number density of large amplitude subcritical fluctuations and discuss the importance of phase mixing to the dynamics of the phase transition. Our results show that, for realistic Higgs masses, the phase transition can be completed by the percolation of the true vacuum, induced by the presence of subcritical fluctuations.

Rudnei O. Ramos

1996-07-24T23:59:59.000Z

220

Vapor phase modifiers for oxidative coupling  

DOE Patents [OSTI]

Volatilized metal compounds retard vapor phase alkane conversion reactions in oxidative coupling processes that convert lower alkanes to higher hydrocarbons.

Warren, Barbara K. (Charleston, WV)

1991-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "development phase phase" 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

Dilute Oxygen Combustion - Phase 3 Report  

SciTech Connect (OSTI)

Dilute Oxygen Combustion (DOC) burners have been successfully installed and operated in the reheat furnace at Auburn Steel Co., Inc., Auburn, NY, under Phase 3 of the Dilute Oxygen Combustion project. Two new preheat zones were created employing a total of eight 6.5 MMBtu/hr capacity burners. The preheat zones provide a 30 percent increase in maximum furnace production rate, from 75 tph to 100 tph. The fuel rate is essentially unchanged, with the fuel savings expected from oxy-fuel combustion being offset by higher flue gas temperatures. When allowance is made for the high nitrogen level and high gas phase temperature in the furnace, measured NOx emissions are in line with laboratory data on DOC burners developed in Phase 1 of the project. Burner performance has been good, and there have been no operating or maintenance problems. The DOC system continues to be used as part of Auburn Steel's standard reheat furnace practice. High gas phase temperature is a result of the high firing density needed to achieve high production rates, and little opportunity exists for improvement in that area. However, fuel and NOx performance can be improved by further conversion on furnace zones to DOC burners, which will lower furnace nitrogen levels. Major obstacles are cost and concern about increased formation of oxide scale on the steel. Oxide scale formation may be enhanced by exposure of the steel to higher concentrations of oxidizing gas components (primarily products of combustion) in the higher temperature zones of the furnace. Phase 4 of the DOC project will examine the rate of oxide scale formation in these higher temperature zones and develop countermeasures that will allow DOC burners to be used successfully in these furnace zones.

Riley, Michael F.

2000-05-31T23:59:59.000Z

222

Dilute Oxygen Combustion Phase 3 Final Report  

SciTech Connect (OSTI)

Dilute Oxygen Combustion (DOC) burners have been successfully installed and operated in the reheat furnace at Auburn Steel Co., Inc., Auburn, NY, under Phase 3 of the Dilute Oxygen Combustion project. Two new preheat zones were created employing a total of eight 6.5 MMBtu/hr capacity burners. The preheat zones provide a 30 percent increase in maximum furnace production rate, from 75 tph to 100 tph. The fuel rate is essentially unchanged, with the fuel savings expected from oxy-fuel combustion being offset by higher flue gas temperatures. When allowance is made for the high nitrogen level and high gas phase temperature in the furnace, measured NOx emissions are in line with laboratory data on DOC burners developed in Phase 1 of the project. Burner performance has been good and there have been no operating or maintenance problems. The DOC system continues to be used as part of Auburn Steel?s standard reheat furnace practice. High gas phase temperature is a result of the high firing density needed to achieve high production rates, and little opportunity exists for improvement in that area. However, fuel and NOx performance can be improved by further conversion of furnace zones to DOC burners, which will lower furnace nitrogen levels. Major obstacles are cost and concern about increased formation of oxide scale on the steel. Oxide scale formation may be enhanced by exposure of the steel to higher concentrations of oxidizing gas components (primarily products of combustion) in the higher temperature zones of the furnace. Phase 4 of the DOC project will examine the rate of oxide scale formation in these higher temperature zones and develop countermeasures that will allow DOC burners to be used successfully in these furnace zones.

Riley, M.F.; Ryan, H.M.

2000-05-31T23:59:59.000Z

223

Thermodynamics of a nonionic sponge phase  

Science Journals Connector (OSTI)

Different suggestions for the mechanism governing the narrow stability of the L3 (sponge) phase have led to a series of debates in recent years. There have been several models developed to describe such a mechanism via thermodynamics. To date, experimental data are insufficient to test present theories. In this study, we revisit the sponge phase with two series of thermodynamic data performed on the well-characterized C12E5n-decaneH2O system. These thermodynamic data sets stem from phase equilibrium and static light scattering experiments designed to link system-specific parameters such as the temperature dependence of the spontaneous curvature Ho and the two bending moduli ? and ?, which have only been loosely connected in earlier experiments. The use of a well-characterized system is important in that it allows usage of molecular descriptors from earlier studies to reduce fit parameters. Another advantage for using this system is that its phase behavior is analogous to a two-component system which, from an experimental standpoint, is more practical to perform accurate measurements and, from a theoretical standpoint, more simple to model. In the present investigation, we use these tools to quantitatively test parameters obtained by different experimental techniques and assumptions inherited in theoretical models designed to interpret them.

T. D. Le; U. Olsson; H. Wennerstrm; P. Schurtenberger

1999-10-01T23:59:59.000Z

224

Three phase AC motor controller  

DOE Patents [OSTI]

A motor controller for a three phase AC motor (10) which is adapted to operate bidirectionally from signals received either from a computer (30) or a manual control (32). The controller is comprised of digital logic circuit means which implement a forward and reverse command signal channel (27, 29) for the application of power through the forward and reverse power switching relays (16, 18, 20, 22). The digital logic elements are cross coupled to prevent activation of both channels simultaneously and each includes a plugging circuit (65, 67) for stopping the motor upon the removal of control signal applied to one of the two channels (27, 29) for a direction of rotation desired. Each plugging circuit (65, 67) includes a one-shot pulse signal generator (88, 102) which outputs a single pulse signal of predetermined pulsewidth which is adapted to inhibit further operation of the application of power in the channel which is being activated and to apply a reversal command signal to the other channel which provides a reversed phase application of power to the motor for a period defined by the pulse-width output of the one-shot signal generator to plug the motor (10) which will then be inoperative until another rotational command signal is applied to either of the two channels.

Vuckovich, Michael (Elizabeth, PA); Wright, Maynard K. (Bethel Park, PA); Burkett, John P. (South Huntington Township, Westmoreland County, PA)

1984-03-20T23:59:59.000Z

225

Development of a high-efficiency, automatic-defrosting refrigerator-freezer. Phase II. Field test. Volume III. Executive summary and task reports  

SciTech Connect (OSTI)

The second phase of the development of a high-efficiency, automatic-defrosting, refrigerator-freezer is described. Following the successful completion of Phase I (design, construction, and laboratory testing of a 16 ft/sup 3/ high efficiency refrigerator-freezer prototype), Phase II was initiated to evaluate sales potential and in-home performance as a necessary step in creating a product that was both manufacturable and marketable. Twenty-five pilot production 18 ft/sup 3/ units using prototype tooling were produced on the assembly line to confirm the feasibility of full-scale production. These units were then used in a market and field test program in which consumer appeal and in-home performance were assessed. The market evaluation confirmed that refrigerators incorporating high-efficiency features at added cost are saleable and that large capacity, automatic-defrosting, refrigerator-freezers will continue to capture a large portion of the market in the years ahead, The field test confirmed the in-home energy saving potential of a high efficiency, automatic-defrosting refrigerator-frezer utilizing advanced design features such as optimized, thick-wall, foam an average energy savings of 60% compared to a baseline unit of conventional design.

Topping, R.F.

1982-12-01T23:59:59.000Z

226

Phase relations in the diopside-anorthite-akermanite system  

Science Journals Connector (OSTI)

The relationship of phases developed during the crystallization of certain glasses within the system diopside-anorthite-akermanite with and without Cr2O3 was studied under different conditions of heat treatment. The mineral phases developed in the Cr2O3-free glasses after heat treatment were in good accordance with the equilibrium phase diagram. The phase relationships were greatly altered in the presence of Cr2O3 towards the formation of complex aluminous pyroxenes; the amount of anorthite was greatly decreased and an akermanite-gehlenite series of melilites formed. The effect of Cr2O3 on cation distributions during crystallization is discussed.

A.A. Omar; S.M. Salman; M.Y. Mahmoud

1986-01-01T23:59:59.000Z

227

6 - Modelling phase transformations in steel  

Science Journals Connector (OSTI)

Abstract: This chapter discusses aspects of the physical and numerical modelling of phase transformations in steels. The basic features of these phase transformations are described. Dilatometric tests, which are performed to identify the parameters of phase transformation models, are explained. Four models of phase transformations of various complexity and various predictive capability are described. The chapter includes a case study of the simulation and optimization of two industrial processes for dual-phase steel strips: laminar cooling after hot rolling, and cooling after continuous annealing.

M. Pietrzyk; R. Kuziak

2012-01-01T23:59:59.000Z

228

November 2004 Phase 2 Progress Report  

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

06 Phase 2 Progress Report: 06 Phase 2 Progress Report: 100kW LOW COST ENERGY STORAGE INVERTER Larry Rinehart Managing Director Rinehart Motion Systems, LLC This work is sponsored by US Department of Energy Grant DE-FG02- 03ER83768 Technical support and management provided by Sandia Labs R S M TM Rinehart Motion Systems, LLC 4/8/2010 DOE Grant DE-FG02-03ER83768 2 Background Rinehart Motion completed Phase 1 R&D activities July 2003 thru April 2004 * In Phase 1 we worked on the Inverter hardware, substantially reducing the size and cost of future Inverters Phase 2 activities began in July 2004 and were scheduled to end June 2006 (a 9 month no-cost extension has been granted) * Phase 2 work is focused on the Inverter / PCS system design The Phase 2 work plan includes: * Determine the scalability boundaries of the technology. Target down

229

Electric field controlled emulsion phase contactor  

DOE Patents [OSTI]

A system is described for contacting liquid phases comprising a column for transporting a liquid phase contacting system, the column having upper and lower regions. The upper region has a nozzle for introducing a dispersed phase and means for applying thereto a vertically oriented high intensity pulsed electric field. This electric field allows improved flow rates while shattering the dispersed phase into many micro-droplets upon exiting the nozzle to form a dispersion within a continuous phase. The lower region employs means for applying to the dispersed phase a horizontally oriented high intensity pulsed electric field so that the dispersed phase undergoes continuous coalescence and redispersion while being urged from side to side as it progresses through the system, increasing greatly the mass transfer opportunity. 5 figs.

Scott, T.C.

1995-01-31T23:59:59.000Z

230

Groningen 2nd phase compression project  

Science Journals Connector (OSTI)

ABSTRACT A Double End Driven Compression train with Active Magnetic Bearings (AMBs), a novel concept on its own, has been chosen as the solution for the Groningen 2nd phase compression project. A development assurance program was followed by a team comprising of both Siemens and Shell specialists with the intent of ensuring that technical risks were identified and addressed as far as possible prior to field implementation. The paper will describe The concept evaluation and selection The creation of the development programme to assess technical risks Technical challenges and learnings Current status of the development and design maturity

E. Liow; H. Goorhuis

2014-01-01T23:59:59.000Z

231

Phase 2 microwave concrete decontamination results  

SciTech Connect (OSTI)

The authors report on the results of the second phase of a four-phase program at Oak Ridge National Laboratory to develop a system to decontaminate concrete using microwave energy. The microwave energy is directed at the concrete surface through the use of an optimized wave guide antenna, or applicator, and this energy rapidly heats the free water present in the interstitial spaces of the concrete matrix. The resulting steam pressure causes the surface to burst in much the same way popcorn pops in a home microwave oven. Each steam explosion removes several square centimeters of concrete surface that are collected by a highly integrated wave guide and vacuum system. The authors call this process the microwave concrete decontamination, or MCD, process. In the first phase of the program the principle of microwaves concrete removal concrete surfaces was demonstrated. In these experiments, concrete slabs were placed on a translator and moved beneath a stationary microwave system. The second phase demonstrated the ability to mobilize the technology to remove the surfaces from concrete floors. Area and volume concrete removal rates of 10.4 cm{sup 2}/s and 4.9 cm{sup 3}/S, respectively, at 18 GHz were demonstrated. These rates are more than double those obtained in Phase 1 of the program. Deeper contamination can be removed by using a longer residence time under the applicator to create multiple explosions in the same area or by taking multiple passes over previously removed areas. Both techniques have been successfully demonstrated. Small test sections of painted and oil-soaked concrete have also been removed in a single pass. Concrete with embedded metal anchors on the surface has also been removed, although with some increased variability of removal depth. Microwave leakage should not pose any operational hazard to personnel, since the observed leakage was much less than the regulatory standard.

White, T.L.; Foster, D. Jr.; Wilson, C.T.; Schaich, C.R.

1995-04-01T23:59:59.000Z

232

Phase-field modeling of three-phase electrode microstructures in solid oxide fuel cells  

Science Journals Connector (OSTI)

A phase-field model for describing three-phase electrode microstructure (i.e. electrode-phase electrolyte-phase and pore-phase) in solid oxide fuel cells is proposed using the diffuse-interface theory. Conserved composition and non-conserved grain orientation order parameters are simultaneously used to describe the coupled phase coarsening and grain growth in the three-phase electrode. The microstructural evolution simulated by the phase-field approach demonstrates the significant dependence of morphological microstructure and output statistic material features on the prescribed kinetic parameters and three-phase volume fractions. The triple-phase boundary fraction is found to have a major degradation in the early evolution.

Qun Li; Linyun Liang; Kirk Gerdes; Long-Qing Chen

2012-01-01T23:59:59.000Z

233

Genomics-based early-phase clinical trials in oncology: Recommendations from the task force on Methodology for the Development of Innovative Cancer Therapies  

Science Journals Connector (OSTI)

Abstract The Methodology for the Development of Innovative Cancer Therapies (MDICT) task force discussed incorporation of genomic profiling into early (Phase I and II) clinical trials in oncology. The task force reviewed the challenges of standardising genomics data in a manner conducive to conducting clinical trials. Current barriers to successful and efficient implementation were identified and discussed, as well as the methods of genomic analysis, the proper setting for study and strategies to facilitate timely completion of genomics-based studies. The importance of properly capturing and cataloguing outcomes was also discussed. Several recommendations regarding the use of genomics in these trials are provided.

Stephen V. Liu; Vincent A. Miller; Marinus W. Lobbezoo; Giuseppe Giaccone

2014-01-01T23:59:59.000Z

234

Phase I Final Technical Report  

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

Final Report to Final Report to Phase I Final Technical Report 10121.4302.01.Final1 Ultra-High Conductivity Umbilicals: Polymer Nanotube Umbilicals (PNUs) 10121-4302-01 June 24, 2013 Christopher A. Dyke Principal Investigator NanoRidge Materials, Inc. 15850 Vickery Drive Houston, Texas 77032 LEGAL NOTICE THIS REPORT WAS PREPARED BY NANORIDGE MATERIALS, INC. AS AN ACCOUNT OF WORK SPONSORED BY THE RESEARCH PARTNERSHIP TO SECURE ENERGY FOR AMERICA, RPSEA. NEITHER RPSEA MEMBERS OF RPSEA, THE NATIONAL ENERGY TECHNOLOGY LABORATORY, THE U.S. DEPARTMENT OF ENERGY, NOR ANY PERSON ACTING ON BEHALF OF ANY OF THE ENTITIES: a. MAKES ANY WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED WITH RESPECT TO ACCURACY, COMPLETENESS, OR USEFULNESS OF THE INFORMATION

235

Phase Contours and Bootstraps. I  

Science Journals Connector (OSTI)

Previous work on phase contours is extended to include reaction amplitudes that have Regge behavior at high energies. General results are obtained on relations between resonance poles and surfaces of zeros of the collision amplitudes. These results depend on the symmetry properties of the amplitudes and on the nature of the dominant Regge trajectories and the dominant resonances. They are also affected by the spin of the colliding particles. Zeros of collision amplitudes can be located asymptotically from Regge formulas, and along certain symmetry lines they can be located at finite values of the energy variables by means of a narrow-resonance approximation. We relate the asymptotic zeros and these "symmetry" zeros by making a unitarity hypothesis. This leads to bootstrap conditions which are generalizations of the linear constraints contained in the Veneziano model.

Charles B. Chiu, Richard J. Eden, Michael B. Green, and Francoise Gurin

1969-06-25T23:59:59.000Z

236

Phase Contours and Bootstraps. II  

Science Journals Connector (OSTI)

The phase-contour method is applied to reactions of the types PP?PP, PP?PV, and PP?PT, where P, V, and T denote, respectively, the pseudoscalar mesons ?, ?, K; the vector mesons ?, ?, K*; and the tensor mesons A2, f0, K**. Relations are obtained between zeros of the collision amplitudes and the resonance poles associated with the appropriate Regge trajectories. In a narrow-resonance approximation, and with a unitarity hypothesis that relates certain residue zeros and symmetry zeros of a collision amplitude, bootstrap constraints, which are generalizations of the Veneziano constraint, are obtained on the trajectory functions. A number of other ways of deriving these constraints are discussed. These constraints are then studied for all allowed meson reactions of the types noted above, and are compared with data on the Regge parameters that have been obtained from experiment.

Charles B. Chiu, Richard J. Eden, and Michael B. Green

1969-09-25T23:59:59.000Z

237

Two phase titanium aluminide alloy  

DOE Patents [OSTI]

A two-phase titanic aluminide alloy having a lamellar microstructure with little intercolony structures. The alloy can include fine particles such as boride particles at colony boundaries and/or grain boundary equiaxed structures. The alloy can include alloying additions such as .ltoreq.10 at % W, Nb and/or Mo. The alloy can be free of Cr, V, Mn, Cu and/or Ni and can include, in atomic %, 45 to 55% Ti, 40 to 50% Al, 1 to 5% Nb, 0.3 to 2% W, up to 1% Mo and 0.1 to 0.3% B. In weight %, the alloy can include 57 to 60% Ti, 30 to 32% Al, 4 to 9% Nb, up to 2% Mo, 2 to 8% W and 0.02 to 0.08% B.

Deevi, Seetharama C. (Midlothian, VA); Liu, C. T. (Oak Ridge, TN)

2001-01-01T23:59:59.000Z

238

Thermal Performance of Phase Change Wallboard for Residential Cooling Application  

E-Print Network [OSTI]

H. Manz; "Theory of Phase Change Materials with and withoutand A.K. Sircar; "Phase Change Materials for Heating andmanufacturing of phase change material (PCM) implemented in

Feustel, H.E.

2011-01-01T23:59:59.000Z

239

High performance Zintl phase TE materials with embedded nanoparticles...  

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

performance Zintl phase TE materials with embedded nanoparticles High performance Zintl phase TE materials with embedded nanoparticles Performance of zintl phase thermoelectric...

240

Loraine Phase 1 | Open Energy Information  

Open Energy Info (EERE)

1 1 Jump to: navigation, search Name Loraine Phase 1 Facility Loraine Phase 1 Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner Third Planet Wind Power Developer Third Planet Wind Power Location Colorado City TX Coordinates 32.4188777°, -100.6750631° 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":32.4188777,"lon":-100.6750631,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

Note: This page contains sample records for the topic "development phase phase" 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

Loraine Phase 2 | Open Energy Information  

Open Energy Info (EERE)

2 2 Jump to: navigation, search Name Loraine Phase 2 Facility Loraine Phase 2 Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner Third Planet Wind Power Developer Third Planet Wind Power Energy Purchaser Merchant Location Colorado City TX Coordinates 32.45223664°, -100.6298304° 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":32.45223664,"lon":-100.6298304,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

242

A Phase-Change Composite for Use in Building Envelopes  

SciTech Connect (OSTI)

The objective of this project is to develop composite thermal insulations containing phase-change materials for use in the building envelope. The use of a phase-change insulation composite in the building envelope could result in a significant increase in energy efficiency. PhD Research provided candidate phase-change composites, and ORNL performed analytical and experimental evaluations of their thermal performance. The thermal resistance of the prototype panels was somewhat less than that of commercial products, although their thermal capacity was greater. Using these results, PhD Research has been working to modify the design and to produce practical building elements that incorporate phase-change material.

Graves, Ron S. [LMES/ORNL; Stovall, T. K. [LMES/ORNL; Weaver, K. E. [LMES/ORNL; Wilkes, K. E. [LMES/ORNL; Roy, S. [PhD Research Group, Inc.

1992-06-15T23:59:59.000Z

243

Geometric phase for collinear conical intersections. I. Geometric phase angle and vector potentials  

SciTech Connect (OSTI)

We present a method for properly treating collinear conical intersections in triatomic systems. The general vector potential (gauge theory) approach for including the geometric phase effects associated with collinear conical intersections in hyperspherical coordinates is presented. The current study develops an introductory method in the treatment of collinear conical intersections by using the phase angle method. The geometric phase angle, {eta}, in terms of purely internal coordinates is derived using the example of a spin-aligned quartet lithium triatomic system. A numerical fit and thus an analytical form for the associated vector potentials are explicitly derived for this triatomic A{sub 3} system. The application of this methodology to AB{sub 2} and ABC systems is also discussed.

Li Xuan [Homer L. Dodge Department of Physics and Astronomy, University of Oklahoma, Norman, Oklahoma 73019 (United States); Department of Chemistry, The University of British Columbia, Vancouver, British Columbia V6T 1Z1 (Canada); Brue, Daniel A.; Blandon, Juan D.; Parker, Gregory A. [Homer L. Dodge Department of Physics and Astronomy, University of Oklahoma, Norman, Oklahoma 73019 (United States); Kendrick, Brian K. [Theoretical Division (T-1, MS B268), Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)

2011-02-14T23:59:59.000Z

244

Novel 3-Phase Inductive Fault Current Limiter  

Science Journals Connector (OSTI)

The paper describes the inductive three-phase fault current limiter. In this work I examine the novel arrangements of the perfect closed superconducting loop made of HTS wire. I applied one iron core with 3 limbs and special loops for uniform temperature of the superconducting wire. In this work I present the results of my experiments with this device. I present the static and dynamic measured results of this solution. It has got several advantages e. g. fast switching and less fault power for high-power electric machines. The advantage of the equipment is that in the case of single-phase short circuit the current will decrease in all the three phases. This can be an appropriate solution for high power machines. For example, in the case of high-power electric motor if there is a single-phase breaking or a single phase short circuit, we can decrease the current in the three phases.

Janos Kosa

2012-01-01T23:59:59.000Z

245

Stationary phase deposition based on onium salts  

DOE Patents [OSTI]

Onium salt chemistry can be used to deposit very uniform thickness stationary phases on the wall of a gas chromatography column. In particular, the stationary phase can be bonded to non-silicon based columns, especially microfabricated metal columns. Non-silicon microfabricated columns may be manufactured and processed at a fraction of the cost of silicon-based columns. In addition, the method can be used to phase-coat conventional capillary columns or silicon-based microfabricated columns.

Wheeler, David R. (Albuquerque, NM); Lewis, Patrick R. (Albuquerque, NM); Dirk, Shawn M. (Albuquerque, NM); Trudell, Daniel E. (Albuquerque, NM)

2008-01-01T23:59:59.000Z

246

Environmental Effects on the Geometric Phase  

E-Print Network [OSTI]

The behavior of the geometric phase gained by a single spin-1/2 nucleus immersed into a thermal or a squeezed environment is investigated. Both the time dependence of the phase and its value at infinity are examined against several physical parameters. It is observed that for some intermediate ranges of the temperature and the coupling strength, the presence of squeezing enhances the geometric phase.

A. C. Gnhan; S. Turgut; N. K. Pak

2009-12-25T23:59:59.000Z

247

QCD PHASE TRANSITIONS-VOLUME 15.  

SciTech Connect (OSTI)

The title of the workshop, ''The QCD Phase Transitions'', in fact happened to be too narrow for its real contents. It would be more accurate to say that it was devoted to different phases of QCD and QCD-related gauge theories, with strong emphasis on discussion of the underlying non-perturbative mechanisms which manifest themselves as all those phases. Before we go to specifics, let us emphasize one important aspect of the present status of non-perturbative Quantum Field Theory in general. It remains true that its studies do not get attention proportional to the intellectual challenge they deserve, and that the theorists working on it remain very fragmented. The efforts to create Theory of Everything including Quantum Gravity have attracted the lion share of attention and young talent. Nevertheless, in the last few years there was also a tremendous progress and even some shift of attention toward emphasis on the unity of non-perturbative phenomena. For example, we have seen some. efforts to connect the lessons from recent progress in Supersymmetric theories with that in QCD, as derived from phenomenology and lattice. Another example is Maldacena conjecture and related development, which connect three things together, string theory, super-gravity and the (N=4) supersymmetric gauge theory. Although the progress mentioned is remarkable by itself, if we would listen to each other more we may have chance to strengthen the field and reach better understanding of the spectacular non-perturbative physics.

SCHAFER,T.

1998-11-04T23:59:59.000Z

248

Vapor phase modifiers for oxidative coupling  

DOE Patents [OSTI]

Volatilized metal compounds are described which are capable of retarding vapor phase alkane conversion reactions in oxidative coupling processes that convert lower alkanes to higher hydrocarbons.

Warren, B.K.

1991-12-17T23:59:59.000Z

249

Double acting stirling engine phase control  

DOE Patents [OSTI]

A mechanical device for effecting a phase change between the expansion and compression volumes of a double-acting Stirling engine uses helical elements which produce opposite rotation of a pair of crankpins when a control rod is moved, so the phase between two pairs of pistons is changed by +.psi. and the phase between the other two pairs of pistons is changed by -.psi.. The phase can change beyond .psi.=90.degree. at which regenerative braking and then reversal of engine rotation occurs.

Berchowitz, David M. (Scotia, NY)

1983-01-01T23:59:59.000Z

250

TWRS phase I privatization site environmental baseline and characterization plan  

SciTech Connect (OSTI)

This document provides a plan to characterize and develop an environmental baseline for the TWRS Phase I Privatization Site before construction begins. A site evaluation study selected the former Grout Disposal Area of the Grout Treatment Facility in the 200 East Area as the TWRS Phase I Demonstration Site. The site is generally clean and has not been used for previous activities other than the GTF. A DQO process was used to develop a Sampling and Analysis Plan that would allow comparison of site conditions during operations and after Phase I ends to the presently existing conditions and provide data for the development of a preoperational monitoring plan.

Shade, J.W.

1997-09-01T23:59:59.000Z

251

Development of a new feed channel spacer for reverse osmosis elements. Phase 2 final report, October 1, 1994--December 31, 1997  

SciTech Connect (OSTI)

During Phase 1, computer modeling techniques were used as the prime instrument of evaluation of designs for a new feed channel spacer to replace the 30 mil thick standard mesh (Vexar) spacer currently used in ROWPU [Reverse Osmosis Water Processing Unit] spiral-wound elements. A hemispherical peg model, based on a Bed of Nails concept developed in Phase 1, was selected for prototype production of spiral-wound elements for field testing. Evaluation in the See-Thru test cell to observe pressure drops through the spacer, feed mixing patterns and ease of cleaning fouled membrane samples showed considerable benefit over Vexar. This design would be suitable for production by roll embossing (or rotary punching) methods instead of expensive injection molding techniques. A 10{1/2} inch die set was fabricated to prove this concept using a 12 ton press brake. Due to a number of factors, however, the equipment did not work as anticipated and numerous modifications are currently in progress. This work will continue at no cost to the government until completed. A seawater test system has been constructed for field testing of various commercially available feed channel spacers for comparison with the Vexar spacer.

Milstead, C.E.; Riley, R.L.

1998-02-11T23:59:59.000Z

252

Integrated thermal treatment system sudy: Phase 2, Results  

SciTech Connect (OSTI)

This report presents the second phase of a study on thermal treatment technologies. The study consists of a systematic assessment of nineteen thermal treatment alternatives for the contact-handled mixed low-level waste (MLLW) currently stored in the US Department of Energy complex. The treatment alternatives consist of widely varying technologies for safely destroying the hazardous organic components, reducing the volume, and preparing for final disposal of the MLLW. The alternatives considered in Phase 2 were innovative thermal treatments with nine types of primary processing units. Other variations in the study examined the effect of combustion gas, air pollution control system design, and stabilization technology for the treatment residues. The Phase 1 study, the results of which have been published as an interim report, examined ten initial thermal treatment alternatives. The Phase 2 systems were evaluated in essentially the same manner as the Phase 2 systems. The assumptions and methods were the same as for the Phase 1 study. The quantities, and physical and chemical compositions, of the input waste used in he Phase 2 systems differ from those in the Phase 1 systems, which were based on a preliminary waste input database developed at the onset of the Integrated Thermal Treatment System study. The inventory database used in the Phase 2 study incorporates the latest US Department of Energy information. All systems, both primary treatment systems and subsystem inputs, have now been evaluated using the same waste input (2,927 lb/hr).

Feizollahi, F.; Quapp, W.J.

1995-08-01T23:59:59.000Z

253

Development of Ion Mobility-mass Spectrometry Instrumentation to Probe the Conformations and Capture the Solution to Gas Phase Transition of Electrosprayed Biomolecules  

E-Print Network [OSTI]

(i.e., peptides and proteins) produced upon ESI and provide new insight into their solution to gas phase evolution. First, fundamental principles of periodic focusing ion mobility spectrometry are comprehensively discussed. Radial ion confinement...

Silveira, Joshua A

2013-11-22T23:59:59.000Z

254

Phase-change radiative thermal diode  

SciTech Connect (OSTI)

A thermal diode transports heat mainly in one preferential direction rather than in the opposite direction. This behavior is generally due to the non-linear dependence of certain physical properties with respect to the temperature. Here we introduce a radiative thermal diode which rectifies heat transport thanks to the phase transitions of materials. Rectification coefficients greater than 70% and up to 90% are shown, even for small temperature differences. This result could have important applications in the development of future contactless thermal circuits or in the conception of radiative coatings for thermal management.

Ben-Abdallah, Philippe, E-mail: pba@institutoptique.fr [Laboratoire Charles Fabry, UMR 8501, Institut d'Optique, CNRS, Universit Paris-Sud 11, 2, Avenue Augustin Fresnel, 91127 Palaiseau Cedex (France)] [Laboratoire Charles Fabry, UMR 8501, Institut d'Optique, CNRS, Universit Paris-Sud 11, 2, Avenue Augustin Fresnel, 91127 Palaiseau Cedex (France); Biehs, Svend-Age, E-mail: s.age.biehs@uni-oldenburg.de [Institut fr Physik, Carl von Ossietzky Universitt, D-26111 Oldenburg (Germany)] [Institut fr Physik, Carl von Ossietzky Universitt, D-26111 Oldenburg (Germany)

2013-11-04T23:59:59.000Z

255

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

256

Reducing Nonlinear Distortion in Optical Phase Conjugation using a Midway Phase-Shifting Filter  

Science Journals Connector (OSTI)

The performance of optical phase conjugation (OPC) is improved by splitting the nonlinear element and inserting a phase-shifting filter. The maximum signal quality increases by 1.2 dB...

Morshed, Mohammad M; Lowery, Arthur J; Du, Liang B

257

Phase diagram and phase transitions of monolayer and bilayer CF4 on graphite  

Science Journals Connector (OSTI)

The phase diagram of CF4 adsorbed on graphite in the monolayer and bilayer region is mapped out in an ac heat-capacity study. In the monolayer region, the resultant phase diagram shows the existence of five different solid phases. The melting transition can proceed from the (22) commensurate, I(S) (an incommensurate phase), and the hexagonal incommensurate (HI) phases. Strongly-first-order melting is found from the (22) and the I(S) phases. In contrast, a sharp and small heat-capacity peak followed by a broad anomaly, similar to the melting of Ar on graphite in the submonolayer region, is observed at the melting of the HI phase. In the bilayer region, four different regions of coexisting solid phases are found. The melting of the bilayer solid occurs at a triple point at 89.05 K. Our data also suggest a bilayer critical point at 93 K.

Q. M. Zhang; H. K. Kim; M. H. W. Chan

1986-12-01T23:59:59.000Z

258

Analytical and Experimental Study of Annular Two-Phase Flow Friction Pressure Drop Under Microgravity  

E-Print Network [OSTI]

to design reliable two-phase systems. The main objective of this present research is to develop a new mathematical model that can accurately predict the annular two-phase friction pressure drop to optimize the design of two-phase systems. The two-phase flow...

Nguyen, Ngoc Thanh

2011-02-22T23:59:59.000Z

259

COP5621 Project Phase 4 Code Generator  

E-Print Network [OSTI]

COP5621 Project Phase 4 Code Generator Purpose: This project is intended to give you experience in the text and in class. Project Summary: Your task is to write a code generator, the final phase of your the same task. Predefined Functions in PASC: You should write your own predefined procedures and functions

Yuan, Xin

260

The Ethics of Phase 0 Oncology Trials  

Science Journals Connector (OSTI)

...Cancer Research CCR Focus CCR Focus The Ethics of Phase 0 Oncology Trials Emily Abdoler...feasibility, community acceptance, and ethics (8-13). This last topic is the subject...these trials (1, 2, 4, 6, 14). Ethics of Phase I Oncology Trials Given the small...

Emily Abdoler; Holly Taylor; David Wendler

2008-06-15T23:59:59.000Z

Note: This page contains sample records for the topic "development phase phase" 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

Intermediate Energy NN Phase Shifts. II  

Science Journals Connector (OSTI)

......Progress Letters Intermediate Energy NN Phase Shifts. II Norio...Takatoshi Watanabe Department of Nuclear Engineering, Faculty of Engineering...1019-1024 Intermediate Energy pp Phase Shifts to 1000 MeV...Dakhno et al. Leningrad Nuclear Physics Institute report 692......

Norio Hoshizaki; Takatoshi Watanabe

1991-08-01T23:59:59.000Z

262

Phase Stability of Multicomponent NAPLs Containing PAHs  

E-Print Network [OSTI]

to produce complex synthetic NAPLs which can be used as surrogate materials to simulate the behavior of a contaminant is dependent on its phase state. For solid phase contaminants in contact with water, the maximum assessment, predicting remediation effectiveness, and experimental research. In this paper, we discuss NAPL

Peters, Catherine A.

263

Second-quantized formulation of geometric phases  

SciTech Connect (OSTI)

The level crossing problem and associated geometric terms are neatly formulated by the second-quantized formulation. This formulation exhibits a hidden local gauge symmetry related to the arbitrariness of the phase choice of the complete orthonormal basis set. By using this second-quantized formulation, which does not assume adiabatic approximation, a convenient exact formula for the geometric terms including off-diagonal geometric terms is derived. The analysis of geometric phases is then reduced to a simple diagonalization of the Hamiltonian, and it is analyzed both in the operator and path-integral formulations. If one diagonalizes the geometric terms in the infinitesimal neighborhood of level crossing, the geometric phases become trivial (and thus no monopole singularity) for arbitrarily large but finite time interval T. The integrability of Schroedinger equation and the appearance of the seemingly nonintegrable phases are thus consistent. The topological proof of the Longuet-Higgins' phase-change rule, for example, fails in the practical Born-Oppenheimer approximation where a large but finite ratio of two time scales is involved and T is identified with the period of the slower system. The difference and similarity between the geometric phases associated with level crossing and the exact topological object such as the Aharonov-Bohm phase become clear in the present formulation. A crucial difference between the quantum anomaly and the geometric phases is also noted.

Deguchi, Shinichi; Fujikawa, Kazuo [Institute of Quantum Science, College of Science and Technology, Nihon University, Chiyoda-ku, Tokyo 101-8308 (Japan)

2005-07-15T23:59:59.000Z

264

Iterative Algorithms for Ptychographic Phase Retrieval  

SciTech Connect (OSTI)

Ptychography promises diffraction limited resolution without the need for high resolution lenses. To achieve high resolution one has to solve the phase problem for many partially overlapping frames. Here we review some of the existing methods for solving ptychographic phase retrieval problem from a numerical analysis point of view, and propose alternative methods based on numerical optimization.

Yang, Chao; Qian, Jianliang; Schirotzek, Andre; Maia, Filipe; Marchesini, Stefano

2011-05-03T23:59:59.000Z

265

Gas-Phase Spectroscopy of Biomolecular  

E-Print Network [OSTI]

Gas-Phase Spectroscopy of Biomolecular Building Blocks Mattanjah S. de Vries1 and Pavel Hobza2 1, REMPI, computational chemistry, spectral hole burning, jet cooling Abstract Gas-phase spectroscopy lends. In recent years, we have seen enormous progress in the study of biomolecular building blocks in the gas

de Vries, Mattanjah S.

266

AIR QUALITY: Control Enters New Phase  

Science Journals Connector (OSTI)

AIR QUALITY: Control Enters New Phase ... Federal enforcement of air pollution is about to enter a new, more technically sophisticated, phase. ... Now air pollution control moves into the criteria and standards period, when numbers eventually will be the basis for enforcement and the country becomes zoned into 32 air quality regions. ...

1968-08-05T23:59:59.000Z

267

CONDENSATION AND EVAPORATION FOR THERMALLY UNEQUILIBRATED PHASES  

E-Print Network [OSTI]

CONDENSATION AND EVAPORATION FOR THERMALLY UNEQUILIBRATED PHASES R. A. Marcus1 , A. V. Fedkin2-K) equation for the rate of condensation of a gas or evaporation of a solid or liquid is used for systems, Tg, differs from that of the condensed phase, Ts . Here, we modify the H-K equation for this case

Grossman, Lawrence

268

Charm -- a thermometer of the mixed phase  

E-Print Network [OSTI]

A charmed quark experiences drag and diffusion in the quark-gluon plasma, as well as strong interaction with the plasma surface. Our simulations indicate that charmed quarks created in heavy ion collisions will be trapped in the mixed phase and will come to equilibrium in it. Their momentum distribution will thus reflect the temperature at the confinement phase transition.

Benjamin Svetitsky; Asher Uziel

1997-09-03T23:59:59.000Z

269

Extreme phase and rotated quadrature measurements  

E-Print Network [OSTI]

We determine the extreme points of the convex set of covariant phase observables. Such extremals describe the best phase parameter measurements of laser light - the best in the sense that they are free from classical randomness due to fluctuations in the measuring procedure. We also characterize extreme fuzzy rotated quadratures.

Juha-Pekka Pellonp

2009-11-03T23:59:59.000Z

270

Modeling of the Phase behavior of light (C2 & C3) olefins in liquid phase epoxidation systems and experimental determination of gas/liquid mass transfer coefficients  

E-Print Network [OSTI]

). HYSYS software was used to study the phase behavior and generate quantitative data on the solubility of gaseous olefins in the liquid phase which aided in the optimization of the reaction conditions. A detailed stirred tank reactor model was developed...

Ghanta, Madhav

2008-01-01T23:59:59.000Z

271

Nonlinear multiferroic phase shifters for microwave frequencies  

SciTech Connect (OSTI)

A nonlinear microwave phase shifter based on a planar multiferroic composite has been studied. The multiferroic structure is fabricated in the form of a bilayer consisting of yttrium iron garnet and barium strontium titanate. The principle of operation of the device is based on the linear and nonlinear control of the phase shift of the hybrid spin-electromagnetic waves propagating in the bilayer. The linear control is realized with magnetic and electric fields. The nonlinear control is provided by the input power of microwave signal. The device showed a nonlinear phase shift up to 250, electric field induced phase shift up to 330, and magnetic field induced phase shift of more than 180.

Ustinov, Alexey B.; Kalinikos, Boris A. [Department of Physical Electronics and Technology, St. Petersburg Electrotechnical University, St. Petersburg 197376 (Russian Federation); Srinivasan, G. [Department of Physics, Oakland University, Rochester, Michigan 48309 (United States)

2014-02-03T23:59:59.000Z

272

Phase equilibria in solutions of disklike particles  

Science Journals Connector (OSTI)

The Flory lattice method has been utilized to study phase equilibria in solutions of disklike molecules. It is found that the critical disk diameter-to-width ratio x for the formation of the stable nematic phase is about 3.015. Temperature-concentration phase diagrams are studied for several values of x. For x<8.6 isotropic and nematic phases are separated by a biphasic range of concentrations. Above x?8.6 a reentrant nematic feature appears, i.e., at a given temperature either of two pairs of phases, isotropic-nematic or nematic-nematic, occurred. The locations of the corresponding critical and triple points are computed. 1996 The American Physical Society.

Maciej Wnek and Jozef K. Moscicki

1996-02-01T23:59:59.000Z

273

New urbanism on a grand scale : the challenges for large-scale, multi-phase master planned developments  

E-Print Network [OSTI]

New Urbanism has been described as an urban design movement promoting the master planning and development of communities that have walkable, human-scale neighborhoods while integrating the necessary elements of modern life ...

Olchowicz, Edward J

2011-01-01T23:59:59.000Z

274

Bosque River Environmental Infrastructure Improvement Plan: Phase I Final Report  

E-Print Network [OSTI]

watershed health. This report is the first phase of a project that is focused on developing and employing a strategic approach to identifying priority areas in the watershed where field investigations should begin to investigate the need to reduce pollution...

Srinivasan, Raghavan

275

Evaluation of phase change materials for reconfigurable interconnects  

E-Print Network [OSTI]

The possible use of programmable integrated circuit interconnect vias using an indirectly heated phase change material is evaluated. Process development and materials investigations are examined. Devices capable of multiple ...

Khoo, Chee Ying

2010-01-01T23:59:59.000Z

276

Phase-Transfer Catalysis: Polymerization and Polymer Modification  

Science Journals Connector (OSTI)

Early in the development of small molecule synthesis by phase-transfer catalytic techniques, the principles of PTC were applied to various aspects of polymer research. Indeed, during the last 15 years an eno...

Charles M. Starks; Charles L. Liotta; Marc E. Halpern

1994-01-01T23:59:59.000Z

277

Phase Separation Dynamics in Isotropic Ion-Intercalation Particles  

E-Print Network [OSTI]

Lithium-ion batteries exhibit complex nonlinear dynamics, resulting from diffusion and phase transformations coupled to ion intercalation reactions. Using the recently developed Cahn-Hilliard reaction (CHR) theory, we investigate a simple mathematical model of ion intercalation in a spherical solid nanoparticle, which predicts transitions from solid-solution radial diffusion to two-phase shrinking-core dynamics. This general approach extends previous Li-ion battery models, which either neglect phase separation or postulate a spherical shrinking-core phase boundary, by predicting phase separation only under appropriate circumstances. The effect of the applied current is captured by generalized Butler-Volmer kinetics, formulated in terms of diffusional chemical potentials, and the model consistently links the evolving concentration profile to the battery voltage. We examine sources of charge/discharge asymmetry, such as asymmetric charge transfer and surface "wetting" by ions within the solid, which can lead to...

Zeng, Yi

2013-01-01T23:59:59.000Z

278

Development of a 2-kilowatt high-reliability wind machine. Phase I. Design and analysis. Volume I. Executive summary  

SciTech Connect (OSTI)

A high reliability wind machine rated for 2 kW at 9 m/s has been designed to be cost-effective for remote site use. To meet or exceed environmental conditions as specified in Contract PF64410F, the resulting design defines a rugged, relatively simple wind machine. Rigorous fatigue analysis for structural components and development of redundant systems for electrical components led to an expected mean time between failures of 12.35 years. Approximately one year into the research and development program, a completed design meeting contract stipulations is being submitted to the contract buyer. The design is for a horizontal axis, down-wind machine with two wooden blades spanning 5 meters diameter. Positive rotor speed control is accomplished through a centrifugally governed variable pitch, stalling rotor. Design merits have been confirmed through dynamic truck testing.

Drake, W.; Clews, H.; Cordes, J.; Johnson, B.; Murphy, P.

1980-01-01T23:59:59.000Z

279

Development of a 2-kilowatt high-reliability wind machine. Phase I. Design and analysis. Volume II. Technical report  

SciTech Connect (OSTI)

A high reliability wind machine rated for 2 kW at 9 m/s has been designed to be cost-effective for remote site use. To meet or exceed environmental conditions as specified in Contract PF64410F, the resulting design defines a rugged, relatively simple wind machine. Rigorous fatigue analysis for structural components and development of redundant systems for electrical components led to an expected mean time between failures of 12.35 years. Approximately one year into the research and development program a completed design meeting contract stipulations is being submitted to the contract buyer. The design is for a horizontal axis, down-wind machine with two wooden blades spanning 5 meters diameter. Positive rotor speed control is accomplished through a centrifugally governed variable pitch stalling rotor. Design merits have been confirmed through dynamic truck testing.

Drake, W.; Clews, H.; Cordes, J.; Johnson, B.; Murphy, P.

1980-01-01T23:59:59.000Z

280

Signatures of an electronic nematic phase at the isotropic-nematic phase transition  

Science Journals Connector (OSTI)

The electronic nematic phase occurs when the point-group symmetry of the lattice structure is broken, due to electron-electron interactions. We study a model for the nematic phase on a square lattice with emphasis on the phase transition between isotropic and nematic phases within mean-field theory. We find the transition to be first order, with dramatic changes in the Fermi-surface topology accompanying the transition. Furthermore, we study the conductivity tensor and Hall constant as probes of the nematic phase and its transition. The relevance of our findings to Hall resistivity experiments in the high-Tc cuprates is discussed.

Hae-Young Kee; Eugene H. Kim; Chung-Hou Chung

2003-12-11T23:59:59.000Z

Note: This page contains sample records for the topic "development phase phase" 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

Experimental development of nuclear pumped laser candidate inertial confinement fusion driver. Technical progress report, Phase 1, 1988--1989  

SciTech Connect (OSTI)

This progress report is submitted at the end of the first year of a 3-year project grant studying development of a nuclear pumped atomic iodine laser. The first section of the report will provide background on the study and briefly describe the original plans for the 3-year project. The second section will detail the work done to date. Included will be a description of the preparations made for experimentation, as well as some preliminary results recently obtained. Plans for the upcoming budget year are covered in the accompanying proposal, ``Project Plans for 1989--1990.``

Miley, G.H.

1989-05-31T23:59:59.000Z

282

Stored CO2 and Methane Leakage Risk Assessment and Monitoring Tool Development: CO2 Capture Project Phase 2 (CCP2)  

SciTech Connect (OSTI)

The primary project goal is to develop and test tools for optimization of ECBM recovery and geologic storage of CO{sub 2} in coalbeds, in addition to tools for monitoring CO{sub 2} sequestration in coalbeds to support risk assessment. Three critical topics identified are (1) the integrity of coal bed methane geologic and engineered systems, (2) the optimization of the coal bed storage process, and (3) reliable monitoring and verification systems appropriate to the special conditions of CO{sub 2} storage and flow in coals.

Dan Kieki

2008-09-30T23:59:59.000Z

283

A-B Phase Transition and Pinning of Phase Boundary of Superfluid 3He in Aerogel  

SciTech Connect (OSTI)

Phase transition in superfluid 3He in aerogel has been studied by NMR. Above 19 bar, we have clearly observed the A-like and B-like phases by following changes in the NMR lineshapes and resonance frequencies. There is a wide temperature region in which the A-like phase and the B-like phase coexist, extending from near the superfluid transition temperature T{sub c}{sup aero} to the lowest temperature of coexistence, T{sub AB}{sup aero}, below which only the B-like phase exists. There are two temperature regions, only in which the phase conversion occurs. Both regions are a few tens of {mu}K wide, the upper region being just below T{sub c}{sup aero} and the lower one just above T{sub AB}{sup aero}. In cooling down and warming up with the two phases in coexistence, no phase conversion occurs between the two regions. The phase boundary between the A-like phase and B-like phase cannot move in aerogel due to strong pinning by inhomogenities of aerogel.

Ishikawa, Osamu; Kado, Ryusuke; Obara, Ken; Yano, Hideo; Hata, Tohru [Graduate School of Science, Osaka City University, Osaka 558-8585 (Japan); Nakagawa, Hisashi [Metrology Institute of Japan, Advanced Industrial Science and Technology Tsukuba, 305-8563 (Japan); Yokogawa, Hiroshi; Yokoyama, Masaru [Matsushita Electric Works Ltd. Kadoma, Osaka, 571-0500 (Japan)

2006-09-07T23:59:59.000Z

284

Phase Contours of Scattering Amplitudes. I. Phase Contours, Zeros, and High-Energy Behavior  

Science Journals Connector (OSTI)

We define phase contours as curves along which the phase of an invariant scattering amplitude is a constant. These curves are sections of a complex surface, which we take either in the real (s,t) plane or in the complex plane of one of the variables. The relation between phase contours, zeros of the amplitude, and high-energy behavior is discussed. Characteristic features of phase contours are investigated in a variety of special models, and it is seen that basic assumptions about high-energy behavior can readily be expressed in terms of the topology of the phase contours. Specific illustrations of phase contours are given for pionnucleon scattering based on phase-shift solutions at low and medium energies and on an extrapolation from Regge solutions at high energies.

Charles B. Chiu, Richard J. Eden, and Chung-I Tan

1968-06-25T23:59:59.000Z

285

A Phase-Field Model for Phase Transformations in Glass-Forming Alloys  

SciTech Connect (OSTI)

A phase-field model is proposed for phase transformations in glass-forming alloys. The glass transition is introduced as a structural relaxation, and the competition between the glass and crystalline phases is investigated. The simulations are performed for Cu-Zr alloys, employing thermodynamic and kinetic parameters derived from reported thermodynamic modeling and molecular dynamics simulation results,[13] respectively. Four distinct phase fields are treated with a multi-phase-field approach, representing the liquid/glass, Cu10Zr7, CuZr, and CuZr2 phases. In addition, a continuum-field method is applied to the liquid to accommodate the liquidglass transformation. The combined phase-field approach is used to investigate the glass formation tendency, and critical cooling rates are estimated and compared with the reported experimental values.

Wang, Tao; Napolitano, Ralph E.

2012-03-24T23:59:59.000Z

286

Enertech 15-kW wind-system development: Phase I. Design and analysis. Volume I. Executive summary  

SciTech Connect (OSTI)

A utility interfaced wind machine rated for 15 kW at 9 m/s (20.1 mph) has been designed to be cost effective in 5.4 m/s (12 mph) average wind sites. Approximately 18 months into the research and development program a completed design meeting contract specifications was submitted to the buyer. The design is for a horizontal axis, down wind machine which features three fixed pitch wood-epoxy blades and free yaw. Rotor diameter is 44 feet (13.4 meters). Unit shutdown is provided by an electrohydraulic brake. Blade tip brakes provide back-up rotor overspeed protection. Design merits have been verified through dynamic truck testing of a prototype unit.

Not Available

1981-09-01T23:59:59.000Z

287

Enertech 15-kW wind-system development. Phase I. Design and Analysis. Volume II. Technical report  

SciTech Connect (OSTI)

A utility interfaced wind machine rated for 15 kW at 9 m/s (20.1 mph) has been designed to be cost effective in 5.4 m/s (12 mph) average wind sites. Approximately 18 months into the research and development program a completed design meeting contract specifications was submitted to the buyer. The design is for a horizontal axis, down wind machine which features three fixed pitch wood-epoxy blades and free yaw. Rotor diameter is 44 feet (13.4 meters). Unit shutdown is provided by an electrohydraulic brake. Blade tip brakes provide back-up rotor overspeed protection. Design merits have been verified through dynamic truck testing of a prototype unit.

Dodge, D.M. (ed.)

1981-09-01T23:59:59.000Z

288

Modeling of fluidized-bed combustion of coal: Phase II, final reports. Volume 1. Model evolution and development  

SciTech Connect (OSTI)

The Energy Laboratory of the Massachusetts Institute of Technology (M.I.T.), under Department of Energy (DOE) sponsorship, has been engaged in the development of a comprehensive mechanistic model of Fluidized Bed Combustors (FBC). The primary aims of this modeling effort are the generation and to the extent possible, validation of an analytical framework for the design and scale-up of fluidized bed combustors. In parallel with this modeling effort, M.I.T. also embarked upon the development of an FBC-Data Base Management System (FBC-DBMS) aimed at facilitating the coordination, interpretation and utilization of the experimental data that are or will become available from diverse sources, as well as in the identification of areas of large uncertainty or having a paucity of experimental results. The synergistic operation of the FBC-Model and FBC-Data Base promises to offer a powerful tool for the design and optimization of FBC's and represents the ultimate goal of the M.I.T. effort. The modeling effort was initially focused upon evaluation and application of state-of-the-art models. The initial system model was divided into five basic components: fluid dynamics, combustion, sulfur capture, heat transfer and emissions. Due to the technical complexity of modeling FBC operation and the initial primitive nature of models for these components, it was deemed necessary to be able to incorporate evolutionary improvements in understanding and correlating FBC phenomena: the M.I.T. system model is, therefore, modular in nature, i.e., each sub-model can be replaced by an updated or equivalent sub-model without necessitating reprogramming of the entire system model.

Louis, J.F.; Tung, S.E.

1980-10-01T23:59:59.000Z

289

Thermodynamic Relationships for Bulk Crystalline and Liquid Phases in the Phase-Field Crystal Model  

E-Print Network [OSTI]

We present thermodynamic relationships between the free energy of the phase-field crystal (PFC) model and thermodynamic state variables for bulk phases under hydrostatic pressure. This relationship is derived based on the thermodynamic formalism for crystalline solids of Larch\\'e and Cahn [Larch\\'e and Cahn, Acta Metallurgica, Vol. 21, 1051 (1973)]. We apply the relationship to examine the thermodynamic processes associated with varying the input parameters of the PFC model: temperature, lattice spacing, and the average value of the PFC order parameter, $\\bar{n}$. The equilibrium conditions between bulk crystalline solid and liquid phases are imposed on the thermodynamic relationships for the PFC model to obtain a procedure for determining solid-liquid phase coexistence. The resulting procedure is found to be in agreement with the method commonly used in the PFC community, justifying the use of the common-tangent construction to determine solid-liquid phase coexistence in the PFC model. Finally, we apply the procedure to an eighth-order-fit (EOF) PFC model that has been parameterized to body-centered-cubic ($bcc$) Fe [Jaatinen et al., Physical Review E 80, 031602 (2009)] to demonstrate the procedure as well as to develop physical intuition about the PFC input parameters. We demonstrate that the EOF-PFC model parameterization does not predict stable $bcc$ structures with positive vacancy densities. This result suggests an alternative parameterization of the PFC model, which requires the primary peak position of the two-body direct correlation function to shift as a function of $\\bar{n}$.

Victor W. L. Chan; Nirand Pisutha-Arnond; Katsuyo Thornton

2015-02-06T23:59:59.000Z

290

Phase transitions and equation of state of CsI under high pressure and the development of a focusing system for x-rays  

SciTech Connect (OSTI)

The phase transitions and equation of state of ionic solid cesium iodide were studied under high pressure and room temperature in a diamond anvil cell. The studies were carried out using both energy dispersive and angular dispersive diffraction methods on synchrotron radiation sources over the pressure range from atmospheric pressure to over 300 gigapascals (3 million atmospheres). CsI undergoes a distinct phase transition at about 40 GPa, a pressure that is much lower than the reported insulator-metal transition at 110 GPa, from the atmospheric pressure B2(CsCl) structure to an orthorhombic structure. At higher pressures, a continuous distortion in the structure was observed with a final structure similar to a hcp lattice under ultra high pressure. No volume discontinuity was observed at the insulator-metal transition. The newly found transition sequence is different from the result of previous static compression studies. The current structure has a smaller unit cell volume than the previous assignment. This has resolved a long existing controversy among the previous static compression studies, the dynamic compression studies, and the theoretical studies. The current results also explain the apparent discrepancy between the present study and the previous static studies. We also present the development of a focusing system for high energy x-rays (> 12 keV) that is particularly suited for high pressure diffraction studies. This system uses a pair of multilayer coated spherical mirrors in a Kirkpatrick-Baez geometry. A focused beam size less than 10 micron in diameter can be readily achieved with sufficient intensity to perform diffraction studies. 93 refs., 46 figs., 15 tabs.

Wu, Yan.

1990-11-01T23:59:59.000Z

291

Quantum Nature of a Nuclear Phase Transition  

Science Journals Connector (OSTI)

At finite temperatures and low densities, nuclei may undergo a phase change similar to a classical liquid-gas phase transition. Temperature is the control parameter while density and pressure are the conjugate variables. In the nucleus the difference between the proton and neutron concentrations acts as an additional order parameter, for which the symmetry potential is the conjugate variable. We present experimental results which reveal the N/Z dependence of the phase transition and discuss possible implications of these observations in terms of the Landau free energy description of critical phenomena.

A. Bonasera; Z. Chen; R. Wada; K. Hagel; J. Natowitz; P. Sahu; L. Qin; S. Kowalski; Th. Keutgen; T. Materna; T. Nakagawa

2008-09-18T23:59:59.000Z

292

Quantum Phase Extraction in Isospectral Electronic Nanostructures  

SciTech Connect (OSTI)

Quantum phase is not a direct observable and is usually determined by interferometric methods. We present a method to map complete electron wave functions, including internal quantum phase information, from measured single-state probability densities. We harness the mathematical discovery of drum-like manifolds bearing different shapes but identical resonances, and construct quantum isospectral nanostructures possessing matching electronic structure but divergent physical structure. Quantum measurement (scanning tunneling microscopy) of these 'quantum drums' [degenerate two-dimensional electron states on the Cu(111) surface confined by individually positioned CO molecules] reveals that isospectrality provides an extra topological degree of freedom enabling robust quantum state transplantation and phase extraction.

Moon, Christopher

2010-04-28T23:59:59.000Z

293

Phase recovery for x-ray crystallography  

Science Journals Connector (OSTI)

For many years people have believed that in conventional x-ray crystallography one can only record the diffraction intensities but not the phases. In order to obtain the atomic arrangements, one usually has to guess a structure and then fit the intensity data by refining its parameters. Here, we show that the phases are in fact hidden in the intensity data, and can be directly recovered from the peak profiles. This method is demonstrated by the normal two-beam x-ray diffraction of a noncentrosymmetric crystal, and nontrivial phases are recovered from the intensity data alone.

G. Xu, G. E. Zhou, and X. Y. Zhang

1999-04-01T23:59:59.000Z

294

Phase 2, Solid waste retrieval strategy  

SciTech Connect (OSTI)

Solid TRU retrieval, Phase 1 is scheduled to commence operation in 1998 at 218W-4C-T01 and complete recovery of the waste containers in 2001. Phase 2 Retrieval will recover the remaining buried TRU waste to be retrieved and provide the preliminary characterization by non-destructive means to allow interim storage until processing for disposal. This document reports on researching the characterization documents to determine the types of wastes to be retrieved and where located, waste configurations, conditions, and required methods for retrieval. Also included are discussions of wastes encompassed by Phase 2 for which there are valid reasons to not retrieve.

Johnson, D.M.

1994-09-29T23:59:59.000Z

295

Unruh effect, quantum thermometer and geometric phase  

E-Print Network [OSTI]

We analyze the properties of the geometric phase of a two level atom system in the case in which the atoms are accelerated by an external potential and in the case in which they interact with a thermal state. Non-trivial values of the geometric phases are obtained. We then propose the realization of an interferometer in which the analysis of Mukunda-Simon phase can demonstrate the existence of the Unruh effect. The realization of a very precise quantum thermometer is also discussed.

A. Capolupo; G. Vitiello

2015-02-02T23:59:59.000Z

296

HYTEST Phase I Facility Commissioning and Modeling  

SciTech Connect (OSTI)

The purpose of this document is to report the first year accomplishments of two coordinated Laboratory Directed Research and Development (LDRD) projects that utilize a hybrid energy testing laboratory that couples various reactors to investigate system reactance behavior. This work is the first phase of a series of hybrid energy research and testing stations - referred to hereafter as HYTEST facilities that are planned for construction and operation at the Idaho National Laboratory (INL). A HYTEST Phase I facility was set up and commissioned in Bay 9 of the Bonneville County Technology Center (BCTC). The purpose of this facility is to utilize the hydrogen and oxygen that is produced by the High Temperature Steam Electrolysis test reactors operating in Bay 9 to support the investigation of kinetic phenomena and transient response of integrated reactor components. This facility provides a convenient scale for conducting scoping tests of new reaction concepts, materials performance, new instruments, and real-time data collection and manipulation for advance process controls. An enclosed reactor module was assembled and connected to a new ventilation system equipped with a variable-speed exhaust blower to mitigate hazardous gas exposures, as well as contract with hot surfaces. The module was equipped with a hydrogen gas pump and receiver tank to supply high quality hydrogen to chemical reactors located in the hood.

Lee P. Shunn; Richard D. Boardman; Shane J. Cherry; Craig G. Rieger

2009-09-01T23:59:59.000Z

297

Memory Optimization for Phase-field Simulations  

SciTech Connect (OSTI)

Phase-field simulations are computationally and memory intensive applications. Many of the phase-field simulations being conducted in support of NEAMS were not capable of running on normal clusters with 2-4GB of RAM per core, and instead required specialized big-memory clusters with 64GB per core. To address this issue, the MOOSE team developed a new Python-based utility called MemoryLogger, and applied it to locate, diagnose, and eradicate memory bottlenecks within the MOOSE framework. MemoryLogger allows for a better understanding of the memory usage of an application being run in parallel across a cluster. Memory usage information is captured for every individual process in a parallel job, and communicated to the head node of the cluster. Console text output from the application itself is automatically matched with this memory usage information to produce a detailed picture of memory usage over time, making it straightforward to identify the subroutines which contribute most to the applications peak memory usage. The information produced by the MemoryLogger quickly and effectively narrows the search for memory optimizations to the most data-intensive parts of the simulation.

Derek Gaston; John Peterson; Andrew Slaughter; Cody Permann; David Andrs

2014-08-01T23:59:59.000Z

298

3 Phases Energy Services | Open Energy Information  

Open Energy Info (EERE)

Phases Energy Services Phases Energy Services Jump to: navigation, search Name 3 Phases Energy Services Place California Utility Id 21093 Utility Location Yes Ownership R NERC Location WECC NERC WECC Yes ISO CA Yes Activity Retail Marketing 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 No rate schedules available. Average Rates Residential: $0.1220/kWh Commercial: $0.1090/kWh Industrial: $0.0707/kWh References ↑ "EIA Form EIA-861 Final Data File for 2010 - File1_a" Retrieved from "http://en.openei.org/w/index.php?title=3_Phases_Energy_Services&oldid=678228"

299

K Basins Sludge Treatment Project Phase 1  

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

K Basins Sludge Treatment Project Phase 1 K Basins Sludge Treatment Project Phase 1 Technology Readiness Assessment Report Herb G. Sutter Michael Poirier Art W. Etchells Gary Smith Kris Thomas Jim J. Davis Paul Macbeth November 16, 2009 Prepared by the U.S. Department of Energy Washington, D.C. K Basins Sludge Treatment Project Phase 1 Technology Readiness Assessment Report November 16, 2009 ii Herbert G. Sutter, Team Lead Date Michael Poirier, Team Member Date Arthur W. Etchells, Team Member Date Gary Smith, Team Member Date Kris Thomas, Team Member Date Jim J. Davis, Team Member Date Paul Macbeth, Team Member Date Signatures 11/09/2009 11/09/2009 11/09/2009 K Basins Sludge Treatment Project Phase 1 Technology Readiness Assessment Report November 16, 2009

300

Edison Phase II Compute Cabinets Arrive  

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

Edison Phase II Compute Cabinets Arrive at NERSC Edison Phase II Compute Cabinets Arrive at NERSC Edison Phase II Compute Cabinets Arrive at NERSC June 27, 2013 by Zhengji Zhao (1 Comments) The compute cabinets were shiped to NERSC between June 24 and 25, 2013.They have been installed on the machine room floor in Oakland. The 28 canbinets that comprise the Phase II system were powered up on June 27, 2013. Post your comment You cannot post comments until you have logged in. Login Here. Comments I re-compiled my program on Edison with Intel compiler. Once submitted the job, the waiting time in the regular queue was very short compared to Hopper. The run on Edison was smooth and with no problems. Comparing the CPU time for the run, I found that the job run almost twice as faster as in Hopper (using PGI compilers). (In Edison it took 111 seconds and in Hopper/PGI 203

Note: This page contains sample records for the topic "development phase phase" from the National Library of EnergyBeta (NLEBeta).
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We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


301

Exploring topological phases with quantum walks  

SciTech Connect (OSTI)

The quantum walk was originally proposed as a quantum-mechanical analog of the classical random walk, and has since become a powerful tool in quantum information science. In this paper, we show that discrete-time quantum walks provide a versatile platform for studying topological phases, which are currently the subject of intense theoretical and experimental investigations. In particular, we demonstrate that recent experimental realizations of quantum walks with cold atoms, photons, and ions simulate a nontrivial one-dimensional topological phase. With simple modifications, the quantum walk can be engineered to realize all of the topological phases, which have been classified in one and two dimensions. We further discuss the existence of robust edge modes at phase boundaries, which provide experimental signatures for the nontrivial topological character of the system.

Kitagawa, Takuya; Rudner, Mark S.; Berg, Erez; Demler, Eugene [Department of Physics, Harvard University, Cambridge, Massachusetts 02138 (United States)

2010-09-15T23:59:59.000Z

302

Phase transitions of helium in aerogel  

Science Journals Connector (OSTI)

The effect of dilute quenched impurities on the liquid-vapor critical point, superfluid and He3?He4 phase separation transitions were studied by introducing liquid helium into aerogel. Aerogel is a highly porous ...

M. H. W. Chan

1996-01-01T23:59:59.000Z

303

Engineered Phase-Matching for Quantum Photonics  

Science Journals Connector (OSTI)

We demonstrate Gaussian-shaped quasi-phase matching of a nonlinear optical crystal via custom duty-cycle modulation on its grating structure. Our analysis shows this crystal can...

Dixon, P Ben; Shapiro, Jeffrey H; Wong, Franco N

304

Metamorphosis: Phases of UF{sub 6}  

SciTech Connect (OSTI)

A 15-minute videotape is presented. The subject matter is 150 grams of UF{sub 6} sealed in a glass tube. Close-up views show the UF{sub 6} as phase changes are effected by the addition or removal of heat from the closed system. The solid-to-liquid transition is shown as heat is added, both slowly and rapidly. The solid phases which result from freezing and from desublimation are contrasted. In the solid state, uranium hexafluoride is a nearly-white, dense crystalline solid. The appearance of this solid depends on whether it is formed by freezing from the liquid or by desublimation from the vapor phase. If frozen from the liquid, the solid particles take the form of irregularly shaped coarse grains, while the solid product of desublimation tends to be a rather formless mass without individually distinguishable particles. The changes in state are presented in terms of the UF{sub 6} phase diagram.

Dyer, R.H. [Department of Energy, Oak Ridge, TN (United States)

1991-12-31T23:59:59.000Z

305

Chiral Discotic Columnar Phases in Liquid Crystals  

E-Print Network [OSTI]

We introduce a model to describe columnar phases of chiral discotic liquid phases in which the normals to disc-like molecules are constrained to lie parallel to columnar axes. The model includes separate chiral interactions favoring, respectively, relative twist of chiral molecules along the axes of the columns and twist of the two-dimensional columnar lattice. It also includes a coupling between the lattice and the orientation of the discotic molecules. We discuss the instability of the aligned hexagonal lattice phase to the formation of a soliton lattice in which molecules twist within their columns without affecting the lattice and to the formation of a moir\\'{e} phase consisting of a periodic array of twist grain boundaries perpendicular to the columns.

Gu Yan; T. C. Lubensky

1996-11-08T23:59:59.000Z

306

Stormwater Pollution Prevention Plan Seismic Phase II  

E-Print Network [OSTI]

Stormwater Pollution Prevention Plan Seismic Phase II Prepared by: Environment, Health and Safety Division Environmental Services Group May 2010 Revision 1 Ernest Orlando Lawrence Berkeley National ..................................................................................................................... 15 2.1.1 Demolition of Building 25/25B

307

Picosecond laser timing by rf phase shifting  

E-Print Network [OSTI]

lasers pumped by synchronized mode?locked, Q?switched, cw Nd:YAG lasers. The phase shifter operates with better than 10?ps precision and generates time delays from 0 to 26 ns....

Johnson, Carey K.; Qian, Jun

1990-01-01T23:59:59.000Z

308

Synthesis of alloys with controlled phase structure  

DOE Patents [OSTI]

A method for preparing controlled phase alloys useful for engineering and hydrogen storage applications. This novel method avoids melting the constituents by employing vapor transport, in a hydrogen atmosphere, of an active metal constituent, having a high vapor pressure at temperatures .apprxeq.300 C. and its subsequent condensation on and reaction with the other constituent (substrate) of an alloy thereby forming a controlled phase alloy and preferably a single phase alloy. It is preferred that the substrate material be a metal powder such that diffusion of the active metal constituent, preferably magnesium, and reaction therewith can be completed within a reasonable time and at temperatures .apprxeq.300 C. thereby avoiding undesirable effects such as sintering, local compositional inhomogeneities, segregation, and formation of unwanted second phases such as intermetallic compounds.

Guthrie, Stephen Everett (Livermore, CA); Thomas, George John (Livermore, CA); Bauer, Walter (Livermore, CA); Yang, Nancy Yuan Chi (Lafayette, CA)

1999-04-20T23:59:59.000Z

309

Synthesis of alloys with controlled phase structure  

DOE Patents [OSTI]

A method is described for preparing controlled phase alloys useful for engineering and hydrogen storage applications. This novel method avoids melting the constituents by employing vapor transport, in a hydrogen atmosphere, of an active metal constituent, having a high vapor pressure at temperatures {approx_equal}300 C and its subsequent condensation on and reaction with the other constituent (substrate) of an alloy thereby forming a controlled phase alloy and preferably a single phase alloy. It is preferred that the substrate material be a metal powder such that diffusion of the active metal constituent, preferably magnesium, and reaction therewith can be completed within a reasonable time and at temperatures {approx_equal}300 C thereby avoiding undesirable effects such as sintering, local compositional inhomogeneities, segregation, and formation of unwanted second phases such as intermetallic compounds. 4 figs.

Guthrie, S.E.; Thomas, G.J.; Bauer, W.; Yang, N.Y.C.

1999-04-20T23:59:59.000Z

310

Adaptive phase measurements for narrowband squeezed beams  

E-Print Network [OSTI]

We have previously [Phys. Rev. A 65, 043803 (2002)] analyzed adaptive measurements for estimating the continuously varying phase of a coherent beam, and a broadband squeezed beam. A real squeezed beam must have finite photon flux N and hence can be significantly squeezed only over a limited frequency range. In this paper we analyze adaptive phase measurements of this type for a realistic model of a squeezed beam. We show that, provided it is possible to suitably choose the parameters of the beam, a mean-square phase uncertainty scaling as (N/kappa)^{-5/8} is possible, where kappa is the linewidth of the beam resulting from the fluctuating phase. This is an improvement over the (N/kappa)^{-1/2} scaling found previously for coherent beams. In the experimentally realistic case where there is a limit on the maximum squeezing possible, the variance will be reduced below that for coherent beams, though the scaling is unchanged.

Dominic W. Berry; Howard M. Wiseman

2006-03-22T23:59:59.000Z

311

Phase-Transfer Catalysis: Industrial Perspective  

Science Journals Connector (OSTI)

In the early 1990s, it was estimated that approximately 500 commercial phase-transfer catalysis (PTC) processes were being performed using at least 25 million pounds per year of catalyst. It was also estimated...

Charles M. Starks; Charles L. Liotta; Marc E. Halpern

1994-01-01T23:59:59.000Z

312

Two phase flow in capillary tubes  

E-Print Network [OSTI]

The flow of two phases, gas and liquid, has been studied in horizontal tubes of capillary diameter. The flow has been primarily studied in the regime where the gas flows as long bubbles separated from the wall of the tube ...

Suo, Mikio

1963-01-01T23:59:59.000Z

313

Continuous fiber ceramic composites. Phase II - Final report  

SciTech Connect (OSTI)

This report documents Atlantic Research Corporation's (ARC) Phase 11 effort on the Department of Energy's (DOE) Continuous Fiber Ceramic Composite (CFCC) program. This project is supported by the DOE cooperative agreement DE-FCO2-92CE40998. Such DOE support does not constitute an endorsement of the views expressed in this report. ARC'S CFCC Phase II effort began during October 1993 and was suspended in March of 1997 when, for business considerations, ARC closed the Amercom operation. This report covers progress from Phase II program inception through Amercom closure. ARC'S Phase II effort built upon the results of the Phase I Applications Assessment and Process Engineering developments to produce CFCC test components for end-user evaluation. Initially, the Phase 11 effort planned to develop and produce three CFCC components: CFCC compression rings for stationary diesel engines, CFCC hot gas fans for industrial furnace applications, and CFCC hot gas filters for current and advanced coal fired power cycles. As the program progressed, the development effort for the diesel engine piston rings was suspended. This decision was based on technical issues, cost factors and reduced program funding; the status of CFCC diesel engine piston ring development will be discussed in detail in section 2.2.1.

Bird, James

1997-10-31T23:59:59.000Z

314

Phase Change Memory An Architecture and Systems Perspective  

E-Print Network [OSTI]

#12;Phase Change Memory Store data within phase change material [Ovshinsky68] Set phase via currentPhase Change Memory An Architecture and Systems Perspective Benjamin Lee Computer Architecture lifetime 1 B.Lee et al. "Architecting phase change memory as a scalable DRAM alternative." ISCA-36

Lee, Benjamin C.

315

Dynamic behavior of a single-phase self-excited induction generator using a three-phase machine feeding single-phase dynamic load  

Science Journals Connector (OSTI)

This paper is motivated to analyze the transient behavior of a single-phase self-excited induction generator (SEIG) using a three-phase machine due to switching of single-phase dynamic load like induction motors. The generator consists of a three-phase star connected induction machine excited with three-capacitors and a single-phase induction motor (IM) load. The developed dynamic models of the SEIG and the motor are based on stationary reference frame dq axes theory incorporating the effect of cross-saturation in the magnetic circuit of the machine and the equations of excitation capacitors are described by three-phase abc model. The system suffers from heavy transients during switching of induction motor and becomes unstable. These problems may be due to resonance caused by series capacitors and the inductive motor load. The use of damping resistors across one series capacitor is proposed to damp out the starting transients for the stable operation. The motor can be started up successfully using the damping resistor. The variation of the damping resistance with the increase in load on the motor after successful starting to maintain constant terminal voltage has been presented. The eigenvalue technique is also employed to examine the transient conditions in the studied SEIG-IM system. The simulated and experimental results are presented for both the unsuccessful and successful starting of the motor. These results are in close agreement with each other, which show the effectiveness of the approach.

S.N. Mahato; S.P. Singh; M.P. Sharma

2013-01-01T23:59:59.000Z

316

Dynamical phase trajectories for relativistic nuclearcollisions  

SciTech Connect (OSTI)

Central collisions of gold nuclei are simulated by severalexisting models and the central net baryon density rho and the energydensity eps are extrac ted at successive times, for beam kinetic energiesof 5-40 GeV per nucleon. The resulting trajectories in the (rho,eps)phase plane are discussed from the perspective of experimentallyexploring the expected first-order hadronization phase transition withthe planned FAIR at GSI or in a low-energy campaign at RHIC.

Arsene, I.C.; Bravina, L.V.; Cassing, W.; Ivanov, Yu.B.; Larionov, A.; Randrup, J.; Russkikh, V.N.; Toneev, V.D.; Zeeb, G.; Zschiesche, D.

2006-09-19T23:59:59.000Z

317

Robust phase sensitive inversion recovery imaging  

E-Print Network [OSTI]

in all the cases was maintained constant with maximum variation rate of 0:026 cycles per pixel. : : : : : : : : 43 19 Phasesensitivereconstructionofimagewithveryhighbackground phase variation rate using block merging algorithm. (a) True image, (b) Real... re- construction, (d) PSIR image obtained using block merging algorithm. 46 21 Error vs. SNR plot for the region growing algorithm. The back- ground phase variation in all the cases was maintained constant with maximum variation rate of 0:026 cycles...

Garach, Ravindra Mahendrakumar

2005-11-01T23:59:59.000Z

318

Polarized neutron reflectometry with phase analysis  

Science Journals Connector (OSTI)

A novel technique, polarized neutron reflectometry with phase analysis (PNRPA), is suggested, in which not only the moduli of reflection matrix elements but also up to three phase differences are measured. It is realized in the scheme with two flippers and an analyzer, by reflection of neutrons with the spin, in succession, parallel and antiparallel to two inclined axes fixed to the sample. More detailed information about magnetic layered structures can be thus obtained. An adequate mathematical formalism is given.

N.K. Pleshanov

1999-01-01T23:59:59.000Z

319

Deformation of C15 Laves phase alloys  

SciTech Connect (OSTI)

Details of the structure and previous work on the deformation of C Laves phases are reviewed. The phase diagram of the Hf-V-Nb system, some metallurgical and physical properties, mechanical behavior, and the deformation mechanisms of HfV{sub 2}+Nb (CI5 HfV{sub 2}+Nb and V-rich bcc solution) are presented based on our previous work. Theoretical approaches to understanding the results of these studies are discussed.

Chu, F.; Pope, D.P.

1995-12-31T23:59:59.000Z

320

Development of asphalts and pavements using recycled tire rubber. Phase 1, Technical feasibility. Technical progress report, September 1, 1994--August 31, 1995  

SciTech Connect (OSTI)

About 285 million tires are discarded every year; less than 100 million are currently being recycled, with the rest being placed in landfills and other waste sites. A solution to reduce the littering of the environment is to use ground tire rubber in road construction. Currently, about 27 million tons of asphalt are used each year in road construction and maintenance of the country`s 2 million miles of roads. If all of the waste tire rubber could be combined with asphalt in road construction, it would displace less than 6% of the total asphalt used each year, yet could save about 60 trillion Btus annually. Purpose of this project is to provide data needed to optimize the performance of rubber-asphalt concretes. The first phase is to develop asphalts and recycling agents tailored for compatibility with ground tire rubber. Chapter 2 presents results on Laboratory Testing and Evaluation: fractionate asphalt material, reblending for aromatic asphalts, verifying optimal curing parameters, aging of blends, and measuring ductilities of asphalt-rubber binders. Chapter 3 focuses on Evaluating Mixture Characteristics (modified binders). Chapter 4 covers Adhesion Test Development (water susceptibility is also covered). The final chapter focuses on the Performance/Economic Update and Commercialization Plan.

Bullin, J.A.; Davison, R.R.; Glover, C.J. [and others

1996-06-01T23:59:59.000Z

Note: This page contains sample records for the topic "development phase phase" 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

Advanced Power Electronic Interfaces for Distributed Energy Systems, Part 2: Modeling, Development, and Experimental Evaluation of Advanced Control Functions for Single-Phase Utility-Connected Inverter  

SciTech Connect (OSTI)

Integrating renewable energy and distributed generations into the Smart Grid architecture requires power electronic (PE) for energy conversion. The key to reaching successful Smart Grid implementation is to develop interoperable, intelligent, and advanced PE technology that improves and accelerates the use of distributed energy resource systems. This report describes the simulation, design, and testing of a single-phase DC-to-AC inverter developed to operate in both islanded and utility-connected mode. It provides results on both the simulations and the experiments conducted, demonstrating the ability of the inverter to provide advanced control functions such as power flow and VAR/voltage regulation. This report also analyzes two different techniques used for digital signal processor (DSP) code generation. Initially, the DSP code was written in C programming language using Texas Instrument's Code Composer Studio. In a later stage of the research, the Simulink DSP toolbox was used to self-generate code for the DSP. The successful tests using Simulink self-generated DSP codes show promise for fast prototyping of PE controls.

Chakraborty, S.; Kroposki, B.; Kramer, W.

2008-11-01T23:59:59.000Z

322

Long Term Field Development of a Surfactant Modified Zeolite/Vapor Phase Bioreactor System for Treatment of Produced Waters for Power Generation  

SciTech Connect (OSTI)

The main goal of this research was to investigate the feasibility of using a combined physicochemical/biological treatment system to remove the organic constituents present in saline produced water. In order to meet this objective, a physical/chemical adsorption process was developed and two separate biological treatment techniques were investigated. Two previous research projects focused on the development of the surfactant modified zeolite adsorption process (DE-AC26-99BC15221) and development of a vapor phase biofilter (VPB) to treat the regeneration off-gas from the surfactant modified zeolite (SMZ) adsorption system (DE-FC26-02NT15461). In this research, the SMZ/VPB was modified to more effectively attenuate peak loads and to maintain stable biodegradation of the BTEX constituents from the produced water. Specifically, a load equalization system was incorporated into the regeneration flow stream. In addition, a membrane bioreactor (MBR) system was tested for its ability to simultaneously remove the aromatic hydrocarbon and carboxylate components from produced water. The specific objectives related to these efforts included the following: (1) Optimize the performance VPBs treating the transient loading expected during SMZ regeneration: (a) Evaluate the impact of biofilter operating parameters on process performance under stable operating conditions. (b) Investigate how transient loads affect biofilter performance, and identify an appropriate technology to improve biological treatment performance during the transient regeneration period of an SMZ adsorption system. (c) Examine the merits of a load equalization technology to attenuate peak VOC loads prior to a VPB system. (d) Evaluate the capability of an SMZ/VPB to remove BTEX from produced water in a field trial. (2) Investigate the feasibility of MBR treatment of produced water: (a) Evaluate the biodegradation of carboxylates and BTEX constituents from synthetic produced water in a laboratory-scale MBR. (b) Evaluate the capability of an SMZ/MBR system to remove carboxylates and BTEX from produced water in a field trial. Laboratory experiments were conducted to provide a better understanding of each component of the SMZ/VPB and SMZ/MBR process. Laboratory VPB studies were designed to address the issue of influent variability and periodic operation (see DE-FC26-02NT15461). These experiments examined multiple influent loading cycles and variable concentration loadings that simulate air sparging as the regeneration option for the SMZ system. Two pilot studies were conducted at a produced water processing facility near Farmington, New Mexico. The first field test evaluated SMZ adsorption, SMZ regeneration, VPB buffering, and VPB performance, and the second test focused on MBR and SMZ/MBR operation. The design of the field studies were based on the results from the previous field tests and laboratory studies. Both of the biological treatment systems were capable of removing the BTEX constituents in the laboratory and in the field over a range of operating conditions. For the VPB, separation of the BTEX constituents from the saline aqueous phase yielded high removal efficiencies. However, carboxylates remained in the aqueous phase and were not removed in the combined VPB/SMZ system. In contrast, the MBR was capable of directly treating the saline produced water and simultaneously removing the BTEX and carboxylate constituents. The major limitation of the MBR system is the potential for membrane fouling, particularly when the system is treating produced water under field conditions. The combined process was able to effectively pretreat water for reverse osmosis treatment and subsequent downstream reuse options including utilization in power generation facilities. The specific conclusions that can be drawn from this study are summarized.

Lynn Katz; Kerry Kinney; Robert Bowman; Enid Sullivan; Soondong Kwon; Elaine Darby; Li-Jung Chen; Craig Altare

2007-12-31T23:59:59.000Z

323

CERES progress report: Phases 1 and 2  

SciTech Connect (OSTI)

The CERES project represents a long-term commitment of LLNL`s Global Climate Research Division to the EPA. The goal is to build an Earth System Model (ESM) with the ability in the near future to assist EPA in carrying out its responsibilities in the environmental policy and assessment arena, with particular emphasis on the terrestrial ecosystem components of the Earth system. There are two complementary aspects of the CERES development plan. The first is to provide a computational framework and modeling infrastructure for ESM development. The goal is to create an ``open architecture`` enabling submodels from different research groups studying terrestrial ecosystems to become part of a fully-coupled model of the Earth`s climate system. The second goal is to contribute fundamentally to understanding of the terrestrial component of the Earth system by developing advanced models. During this first phase of the CERES project, these two activities have been somewhat separate; the software engineering and framework building activity having been done in parallel with terrestrial model development. These two activities are merging as the framework becomes more mature, with robust software tools, and with a growing complement of tuned and benchmarked submodels and as the ecosystem models become fully incorporated into the ESM modeling framework. Two appendices contain the following papers: (1) ``Research Recommendations to the EPA in Support of Earth System Modeling Activities,`` LLNL CERES project report; and (2) ``Progress Report on Terrestrial Model Development: Research in Support of the CERES Earth System Modeling Project,`` LLNL CERES project report.

Dannevik, W.P.; Ambrosiano, J.; Kercher, J.; Penner, J.E. [Lawrence Livermore National Lab., CA (United States); Emanuel, W. [Oak Ridge National Lab., TN (United States)

1994-05-27T23:59:59.000Z

324

Development of optimal SnO{sub 2} contacts for CdTe photovoltaic applications. [Final technical report of Phase II  

SciTech Connect (OSTI)

During this SBIR Phase II project, we have successfully established high quality SnO{sub 2}(F) based transparent conductive oxide coatings by atmospheric pressure chemical vapor deposition technique and built a large area prototype APCVD deposition system which incorporates innovative design features. This work enhances US photovoltaic research capability and other thin film oxide related research capability.

Xi, Jianping

1999-09-16T23:59:59.000Z

325

PROJECT SELECTIONS FOR DOE PHASE ...  

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

sorbent that can remove both hydrogen sulfide and organic sulfur species from biogas, reducing their concentration to the parts per billion level. TDA originally developed...

326

Crystallization of Ge2Sb2Te5 nanometric phase change material clusters made by gas-phase condensation  

E-Print Network [OSTI]

Crystallization of Ge2Sb2Te5 nanometric phase change material clusters made by gas- phase=pdfcov Published by the AIP Publishing Articles you may be interested in Nanoscale nuclei in phase change materials phase change material clusters made by gas-phase condensation G. E. Ghezzi,1,2 R. Morel,3 A. Brenac,3 N

Paris-Sud XI, Université de

327

Apex Offshore Phase 1 | Open Energy Information  

Open Energy Info (EERE)

1 1 Facility Apex Offshore Phase 1 Sector Wind energy Facility Type Offshore Wind Facility Status Proposed Owner Apex Wind Energy Developer Apex Offshore Wind / Outer Banks Ocean Energy Corp / Maersk Line Limited Location Atlantic Ocean NC Coordinates 34.169°, -77.12° 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":34.169,"lon":-77.12,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

328

Apex Offshore Phase 2 | Open Energy Information  

Open Energy Info (EERE)

2 2 Facility Apex Offshore Phase 2 Sector Wind energy Facility Type Offshore Wind Facility Status Proposed Owner Apex Wind Energy Developer Apex Offshore Wind / Outer Banks Ocean Energy Corp / Maersk Line Limited Location Atlantic Ocean NC Coordinates 34.169°, -76.91° 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":34.169,"lon":-76.91,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

329

Benchmark On Sensitivity Calculation (Phase III)  

SciTech Connect (OSTI)

The sensitivities of the keff eigenvalue to neutron cross sections have become commonly used in similarity studies and as part of the validation algorithm for criticality safety assessments. To test calculations of the sensitivity coefficients, a benchmark study (Phase III) has been established by the OECD-NEA/WPNCS/EG UACSA (Expert Group on Uncertainty Analysis for Criticality Safety Assessment). This paper presents some sensitivity results generated by the benchmark participants using various computational tools based upon different computational methods: SCALE/TSUNAMI-3D and -1D, MONK, APOLLO2-MORET 5, DRAGON-SUSD3D and MMKKENO. The study demonstrates the performance of the tools. It also illustrates how model simplifications impact the sensitivity results and demonstrates the importance of 'implicit' (self-shielding) sensitivities. This work has been a useful step towards verification of the existing and developed sensitivity analysis methods.

Ivanova, Tatiana [IRSN; Laville, Cedric [IRSN; Dyrda, James [Atomic Weapons Establishment; Mennerdahl, Dennis [E. Mennerdahl Systems; Golovko, Yury [Institute of Physics and Power Engineering (IPPE), Obninsk, Russia; Raskach, Kirill [Institute of Physics and Power Engineering (IPPE), Obninsk, Russia; Tsiboulia, Anatoly [Institute of Physics and Power Engineering (IPPE), Obninsk, Russia; Lee, Gil Soo [Korea Institute of Nuclear Safety (KINS); Woo, Sweng-Woong [Korea Institute of Nuclear Safety (KINS); Bidaud, Adrien [Labratoire de Physique Subatomique et de Cosmolo-gie (LPSC); Patel, Amrit [NRC; Bledsoe, Keith C [ORNL; Rearden, Bradley T [ORNL; Gulliford, J. [OECD Nuclear Energy Agency

2012-01-01T23:59:59.000Z

330

Microrheology close to an equilibrium phase transition  

SciTech Connect (OSTI)

We investigate the microstructural and microrheological response to a tracer particle of a two-dimensional colloidal suspension under thermodynamic conditions close to a liquid-gas phase boundary. On the liquid side of the binodal, increasing the velocity of the (repulsive) tracer leads to the development of a pronounced cavitation bubble, within which the concentration of colloidal particles is strongly depleted. The tendency of the liquid to cavitate is characterized by a dimensionless colloidal cavitation number. On the gas side of the binodal, a pulled (attractive) tracer leaves behind it an extended trail of colloidal liquid, arising from downstream advection of a wetting layer on its surface. For both situations the velocity dependent friction is calculated.

Reinhardt, J.; Scacchi, A.; Brader, J. M., E-mail: joseph.brader@unifr.ch [Department of Physics, University of Fribourg, CH-1700 Fribourg (Switzerland)

2014-04-14T23:59:59.000Z

331

Structure and composition of phases occurring in austenitic stainless steels in thermal and irradiation environments  

SciTech Connect (OSTI)

Transmission electron diffraction techniques coupled with quantitative x-ray energy dispersive spectroscopy have been used to characterize the phases which develop in austenitic stainless steels during exposure to thermal and to irradiation environments. In AISI 316 and Ti-modified stainless steels some thirteen phases have been identified and characterized in terms of their crystal structure and chemical composition. Irradiation does not produce any completely new phases. However, as a result of radiation-induced segregation principally of Ni and Si, and of enhanced diffusion rates, several major changes in phase relationships occur during irradiation. Firstly, phases characteristic of remote regions of the phase diagram appear unexpectedly and dissolve during postirradiation annealing (radiation-induced phases). Secondly, some phases develop with their compositions significantly altered by the incorporation of Ni or Si (radiation-modified phases).

Lee, E.H.; Maziasz, P.J.; Rowcliffe, A.F.

1980-01-01T23:59:59.000Z

332

Thermal Performance of Phase Change Wallboard for Residential Cooling Application  

E-Print Network [OSTI]

H. Manz; "Theory of Phase Change Materials with and withoutand A.K. Sircar; "Phase Change Materials for Heating andContaining a Phase Change Material", Proceedings of the 25th

Feustel, H.E.

2011-01-01T23:59:59.000Z

333

An economical optical system design using phase diversity  

E-Print Network [OSTI]

The resolution of an incoherent imaging system is olden limited aberrations. Phase aberrations by phase arise from a variety of sources including atmospheric turbulence, misaligned optical and improper mirror figure. Knowledge of phase aberrations...

Thosani, Samir C.

2012-06-07T23:59:59.000Z

334

Face recognition with disparity corrected gabor phase differences  

Science Journals Connector (OSTI)

We analyze the relative relevance of Gabor amplitudes and phases for face recognition. We propose an algorithm to reliably estimate offset point disparities from phase differences and show that disparity-corrected Gabor phase differences are well suited ...

Manuel Gnther; Dennis Haufe; Rolf P. Wrtz

2012-09-01T23:59:59.000Z

335

GTC Phase-2 Preparation Tool Gran Telescopio Canarias  

E-Print Network [OSTI]

GTC Phase-2 Preparation Tool 1 Gran Telescopio Canarias Phase-2 Preparation Tool Valid from period describes how to use the Phase-2 tool for preparing observations at the Gran Telescopio CANARIAS (GTC). Each

336

Time-, Energy-, and Phase-Resolved Second-Harmonic Generation at Semiconductor Interfaces  

Science Journals Connector (OSTI)

Time-, Energy-, and Phase-Resolved Second-Harmonic Generation at Semiconductor Interfaces ... We report the development of a femtosecond spectral interferometry technique for second-harmonic generation with time, energy, and phase resolution. ...

C. A. Nelson; J. Luo; A. K.-Y. Jen; R. B. Laghumavarapu; D. L. Huffaker; X.-Y. Zhu

2014-11-12T23:59:59.000Z

337

Extracting and Representing Qualitative Behaviors of Complex Systems in Phase Spaces  

E-Print Network [OSTI]

We develop a qualitative method for understanding and representing phase space structures of complex systems and demonstrate the method with a program, MAPS --- Modeler and Analyzer for Phase Spaces, using deep domain ...

Zhao, Feng

1991-03-01T23:59:59.000Z

338

Phase behavior of coal fluids: Data for correlation development: Final report for the period August 1, 1983 to January 31, 1987  

SciTech Connect (OSTI)

The overall objective of the author's work is to develop accurate predictive methods for representation of vapor-liquid equilibria in systems encountered in coal-conversion processes. During the course of this project, solubility data were obtained on eighteen binary mixtures of the solute CO/sub 2/ or ethane in a series of paraffinic, naphthenic and aromatic solvents which included n-decane, n-dodecane, n-eicosane, n-octadecane, n-hexatriacontane, cyclohexane, trans-Decalin, benzene, naphthalene, phenanthrene and pyrene. Temperatures, pressures and solute mole fractions were in the general range of 313 to 423K, 0.3 to 12.0 MPa, and 0.05 to 0.60 mole fraction solute, respectively. The solubility data for either CO/sub 2/ or ethane in the paraffinic, naphthenic and aromatic solvents are described well by the Soave or Peng-Robinson equation of state (EOS). When one empirical interaction parameter, k/sub 12/, is used for each isotherm in each system, average errors in the predicted solubility are on the order of 0.01 to 0.02 mole fraction. The use of two interaction parameters per isotherm, k/sub 12/ and l/sub 12/, reduces the typical errors to 0.001 to 0.003. The experimental data obtained in the project can serve as an excellent basis for evaluation of parameters in any selected phase behavior model. The systematic study of a series of solvents of the same molecular class can permit generalized correlations to be developed for the model parameters. For the equations of state studied in this work, convenient generalized correlations are presented for the interaction parameters of CO/sub 2/ or ethane in n-paraffins. To date, no equivalent generalizations have been developed for the naphthenic or aromatic solvents. 30 refs., 20 figs., 21 tabs.

Robinson, R.L. Jr.; Anderson, J.M.; Barrick, M.W.; Bufkin, B.A.; Ross, C.H.

1987-01-01T23:59:59.000Z

339

Phase-Transfer Catalysis: Chiral Phase-Transfer-Catalyzed Formation of Carbon-Carbon Bonds  

Science Journals Connector (OSTI)

It is only within the last two decades that heterogeneous enantioselective syntheses involving chiral phase-transfer catalysts (quaternary ammonium and phosphonium salts, macrocyclic miltidentate ligands, poly...

Charles M. Starks; Charles L. Liotta; Marc E. Halpern

1994-01-01T23:59:59.000Z

340

OPTICAL PHASE CURVES OF KEPLER EXOPLANETS  

SciTech Connect (OSTI)

We conducted a comprehensive search for optical phase variations of all close-in (a/R{sub *} < 10) planet candidates in 15 quarters of Kepler space telescope data. After correcting for systematics, we found eight systems that show secondary eclipses as well as phase variations. Of these, five (Kepler-5, Kepler-6, Kepler-8, KOI-64, and KOI-2133) are new and three (TrES-2, HAT-P-7, and KOI-13) have published phase curves, albeit with many fewer observations. We model the full phase curve of each planet candidate, including the primary and secondary transits, and derive their albedos, dayside and nightside temperatures, ellipsoidal variations, and Doppler beaming. We find that KOI-64 and KOI-2133 have nightside temperatures well above their equilibrium values (while KOI-2133 also has an albedo, >1), so we conclude that they are likely to be self-luminous objects rather than planets. The other six candidates have characteristics consistent with their being planets with low geometric albedos (<0.3). For TrES-2 and KOI-13, the Kepler bandpass appears to probe atmospheric layers hotter than the planet's equilibrium temperature. For KOI-13, we detect a never-before-seen third cosine harmonic with an amplitude of 6.7 {+-} 0.3 ppm and a phase shift of -1.1 {+-} 0.1 rad in the phase curve residual, possibly due to its spin-orbit misalignment. We report derived planetary parameters for all six planets, including masses from ellipsoidal variations and Doppler beaming, and compare our results to published values when available. Our results nearly double the number of Kepler exoplanets with measured phase curve variations, thus providing valuable constraints on the properties of hot Jupiters.

Esteves, Lisa J.; De Mooij, Ernst J. W.; Jayawardhana, Ray, E-mail: esteves@astro.utoronto.ca, E-mail: demooij@astro.utoronto.ca, E-mail: rayjay@astro.utoronto.ca [Astronomy and Astrophysics, University of Toronto, 50 St. George Street, Toronto, Ontario M5S 3H4 (Canada)

2013-07-20T23:59:59.000Z

Note: This page contains sample records for the topic "development phase phase" 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

Phase I Report: DARPA Exoskeleton Program  

SciTech Connect (OSTI)

The Defense Advanced Research Projects Agency (DARPA) inaugurated a program addressing research and development for an Exoskeleton for Human Performance Augmentation in FY!2001. A team consisting of Oak Ridge National Laboratory, the prime contractor, AeroVironment, Inc., the Army Research Laboratory, the University of Minnesota, and the Virginia Polytechnic Institute has recently completed an 18-month Phase I effort in support of this DARPA program. The Phase I effort focused on the development and proof-of-concept demonstrations for key enabling technologies, laying the foundation for subsequently building and demonstrating a prototype exoskeleton. The overall approach was driven by the need to optimize energy efficiency while providing a system that augmented the operator in as transparent manner as possible (non-impeding). These needs led to the evolution of two key distinguishing features of this team's approach. The first is the ''no knee contact'' concept. This concept is dependent on a unique Cartesian-based control scheme that uses force sensing at the foot and backpack attachments to allow the exoskeleton to closely follow the operator while avoiding the difficulty of connecting and sensing position at the knee. The second is an emphasis on energy efficiency manifested by an energetic, power, actuation and controls approach designed to enhance energy efficiency as well as a reconfigurable kinematic structure that provides a non-anthropomorphic configuration to support an energy saving long-range march/transport mode. The enabling technologies addressed in the first phase were controls and sensing, the soft tissue interface between the machine and the operator, the power system, and actuation. The controller approach was implemented and demonstrated on a test stand with an actual operator. Control stability, low operator fatigue, force amplification and the human interface were all successfully demonstrated, validating the controls approach. A unique, lightweight, low profile, multi-axis foot sensor (an integral element of the controls approach) was designed, fabricated, and its performance verified. A preliminary conceptual design of the human coupling and soft tissue interface, based on biomechanics research has been developed along with a test plan to support an iterative design process. The power system concept, a fuel cell hybrid power supply using chemical generated hydrogen, was successfully demonstrated and shown to be able to efficiently meet both steady-state and transient peak loads. Two actuator approaches, a piezoelectric actuator, with theoretical high power densities and an approach based on a high-performance, high-speed electric motor driving a miniature hydraulic pump have been investigated. The first shows great potential but will require further research before reaching that promise. The other approach has been modeled and simulated and shown to provide the possibility for significant energy savings (>30%) and improved power densities in comparison to conventional hydraulics. Biomechanics analysis and testing were also performed in support of these enabling technologies, to provide a basis for design criteria. An analysis was performed to determine baseline data for initial mechanical design and power supply sizing. Testing conducted to evaluate boot sole thickness found that thickness increases up to two inches could be accommodated without significant impact on human factors issues. This 18-month long Phase I effort has evaluated key enabling technologies and demonstrated advances in these technologies that have significantly increased the likelihood of building a functional prototype exoskeleton.

Jansen, J.F.

2004-01-21T23:59:59.000Z

342

Phase Chemistry of Tank Sludge Residual Components  

SciTech Connect (OSTI)

The US Department of Energy (DOE) has millions of gallons of high level nuclear waste stored in underground tanks at Hanford, Washington and Savannah River, South Carolina. These tanks will eventually be emptied and decommissioned. This will leave a residue of sludge adhering to the interior tank surfaces that may contaminate nearby groundwaters with radionuclides and RCRA metals. Performance assessment (PA) calculations must be carried out prior to closing the tanks. This requires developing radionuclide release models from the sludges so that the PA calculations can be based on credible source terms. These efforts continued to be hindered by uncertainties regarding the actual nature of the tank contents and the distribution of radionuclides among the various phases. In particular, it is of vital importance to know what radionuclides are associated with solid sludge components. Experimentation on actual tank sludges can be difficult, dangerous and prohibitively expensive. The research funded under this grant for the past three years was intended to provide a cost-effective method for developing the needed radionuclide release models using non-radioactive artificial sludges. Insights gained from this work will also have more immediate applications in understanding the processes responsible for heel development in the tanks and in developing effective technologies for removing wastes from the tanks.

J.L. Krumhansl

2002-04-02T23:59:59.000Z

343

Development of a low-cost black-liquid solar collector, Phase II. Second semi-annual report, March 1, 1980-August 31, 1980  

SciTech Connect (OSTI)

Battelle's Columbus Laboratories (BCL) is continuing its research effort to develop an efficient, low-temperature, low-cost, flat-plate black-liquid solar collector. The research efforts during this second 6-month period of Phase II have been directed toward (1) evaluating the long-term durability of various plastic materials and solar collector designs, (2) obtaining sufficient outdoor performance data to design a full-scale demonstration of a black-liquid solar collector for a commercial application, (3) working closely with a company willing to commercialize black liquid plastic collectors, and (4) incorporating improved black liquids with the identified plastic collector designs. Besides conducting indoor weathering tests of various plastic materials, two outdoor automated test facilities have been operated. One unit has been in use since February 1980 at Battelle in Columbus, Ohio, and the other unit began operation in May 1980 at Ramada Energy Systems, Inc., a collector manufacturing company near Phoenix, Arizona. Since Ramada Energy Systems has been working with extruded polycarbonate panels, Battelle has been working to date with extruded acrylic panel designs. Other potential plastics for solar collectors are being evaluated by exposure testing.

Landstrom, D.K.; Talbert, S.G.; McGinniss, V.D.

1980-09-30T23:59:59.000Z

344

Brigantine OffshoreMW Phase 1 | Open Energy Information  

Open Energy Info (EERE)

Brigantine OffshoreMW Phase 1 Brigantine OffshoreMW Phase 1 Jump to: navigation, search Name Brigantine OffshoreMW Phase 1 Facility Brigantine OffshoreMW Phase 1 Sector Wind energy Facility Type Offshore Wind Facility Status Proposed Owner OffshoreMW Developer Offshore MW Location Atlantic Ocean NJ Coordinates 39.584°, -73.77° 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":39.584,"lon":-73.77,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

345

Galveston Offshore Wind Phase 2 | Open Energy Information  

Open Energy Info (EERE)

Offshore Wind Phase 2 Offshore Wind Phase 2 Jump to: navigation, search Name Galveston Offshore Wind Phase 2 Facility Galveston Offshore Wind Phase 2 Sector Wind energy Facility Type Offshore Wind Facility Status Proposed Owner Coastal Point Energy LLC Developer Coastal Point Energy LLC Location Gulf of Mexico TX Coordinates 29.16°, -94.747° 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":29.16,"lon":-94.747,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

346

Solano Wind Project Phase I | Open Energy Information  

Open Energy Info (EERE)

Phase I Phase I Jump to: navigation, search Name Solano Wind Project Phase I Facility Solano Wind Project Phase I Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner Sacramento Municipal Utility District Developer Sacramento Municipal Utility District Energy Purchaser Sacramento Municipal Utility District Location Solano County CA Coordinates 38.165683°, -121.817186° 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":38.165683,"lon":-121.817186,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

347

Caprock Wind Ranch phase II | Open Energy Information  

Open Energy Info (EERE)

phase II phase II Jump to: navigation, search Name Caprock Wind Ranch phase II Facility Caprock Wind Ranch phase II Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner Babcock & Brown Developer Cielo Wind Power Energy Purchaser Xcel Energy Location Quay County NM Coordinates 35.043532°, -103.583422° 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":35.043532,"lon":-103.583422,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

348

Instabilities of uniform filtration flows with phase transition  

SciTech Connect (OSTI)

New mechanisms of instability are described for vertical flows with phase transition through horizontally extended two-dimensional regions of a porous medium. A plane surface of phase transition becomes unstable at an infinitely large wavenumber and at zero wavenumber. In the latter case, the unstable flow undergoes reversible subcritical bifurcations leading to the development of secondary flows (which may not be horizontally uniform). The evolution of subcritical modes near the instability threshold is governed by the Kolmogorov-Petrovskii-Piskunov equation. Two examples of flow through a porous medium are considered. One is the unstable flow across a water-bearing layer above a layer that carries a vapor-air mixture under isothermal conditions in the presence of capillary forces at the phase transition interface. The other is the vertical flow with phase transition in a high-temperature geothermal reservoir consisting of two high-permeability regions separated by a low-permeability stratum.

Il'ichev, A. T. [Russian Academy of Sciences, Steklov Institute of Mathematics (Russian Federation)], E-mail: ilichev@mi.ras.ru; Tsypkin, G. G. [Russian Academy of Sciences, Institute for Problems in Mechanics (Russian Federation)

2008-10-15T23:59:59.000Z

349

Condon Wind Project phase II | Open Energy Information  

Open Energy Info (EERE)

Project phase II Project phase II Jump to: navigation, search Name Condon Wind Project phase II Facility Condon Wind Project phase II Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Developer SeaWest Energy Purchaser Bonneville Power Admin Location Gilliam County OR Coordinates 45.306062°, -120.255847° 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":45.306062,"lon":-120.255847,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

350

Top Crop Wind Farm (Phase II) | Open Energy Information  

Open Energy Info (EERE)

(Phase II) (Phase II) Jump to: navigation, search Name Top Crop Wind Farm (Phase II) Facility Top Crop Wind Farm (Phase II) Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner Horizon-EDPR Developer Horizon-EDPR Location Grundy County IL Coordinates 41.202313°, -88.530078° 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":41.202313,"lon":-88.530078,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

351

Project Profile: Innovative Phase Change Thermal Energy Storage...  

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

Phase Change Thermal Energy Storage Solution for Baseload Power Project Profile: Innovative Phase Change Thermal Energy Storage Solution for Baseload Power Infinia logo Infinia,...

352

Two-Phase Cooling Technology for Power Electronics with Novel...  

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

Two-Phase Cooling Technology for Power Electronics with Novel Coolants Two-Phase Cooling Technology for Power Electronics with Novel Coolants 2011 DOE Hydrogen and Fuel Cells...

353

Novel and Optimized Materials Phases for High Energy Density...  

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

Novel and Optimized Materials Phases for High Energy Density Batteries Novel and Optimized Materials Phases for High Energy Density Batteries 2013 DOE Hydrogen and Fuel Cells...

354

BSU GHP District Heating and Cooling System (Phase I) | Department...  

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

BSU GHP District Heating and Cooling System (Phase I) BSU GHP District Heating and Cooling System (Phase I) Project objectives: Create a campus geothermal heating and cooling...

355

SPIDERS JCTD Phase 3 Status and Way Ahead  

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

NAVFAC UNCLASSIFIED UNCLASSIFIED Page-2 Phase 3 Objectives * Phase 3 is the entire Camp Smith installation * Multiple integrated microgrids will support mission Integration of...

356

Advanced Collaborative Emissions Study (ACES): Phase 2 Status...  

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

: Phase 2 Status Report Advanced Collaborative Emissions Study (ACES): Phase 2 Status Report Discusses status of ACES, a cooperative multi-party effort to characterize emissions...

357

Phase 1 of the Advanced Collaborative Emissions Study (ACES)...  

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

Phase 1 of the Advanced Collaborative Emissions Study (ACES): Highlights of Project Finding Phase 1 of the Advanced Collaborative Emissions Study (ACES): Highlights of Project...

358

Equivalence of cost generators for minimum cost flow phase unwrapping  

Science Journals Connector (OSTI)

Phase unwrapping represents a crucial step in processing phase data obtained with techniques such as synthetic aperture radar interferometry, speckle interferometry, and magnetic...

Hubig, Michael; Suchandt, Steffen; Adam, Nico

2002-01-01T23:59:59.000Z

359

Used Fuel Disposition Campaign Phase I Ring Compression Testing...  

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

Phase I Ring Compression Testing of High Burnup Cladding Used Fuel Disposition Campaign Phase I Ring Compression Testing of High Burnup Cladding The purpose of ring compression...

360

In Situ TEM Investigation of Congruent Phase Transition and Structural...  

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

of Congruent Phase Transition and Structural Evolution of Nanostructured SiliconCarbon Anode for In Situ TEM Investigation of Congruent Phase Transition and Structural Evolution...

Note: This page contains sample records for the topic "development phase phase" 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

K Basins Sludge Treatment Project Phase 1 | Department of Energy  

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

K Basins Sludge Treatment Project Phase 1 K Basins Sludge Treatment Project Phase 1 Full Document and Summary Versions are available for download K Basins Sludge Treatment Project...

362

First-principles calculations of the electronic structure, phase...  

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

calculations of the electronic structure, phase transition and properties of ZrSiO4 polymorphs. First-principles calculations of the electronic structure, phase transition and...

363

DECOUPLED ENERGY STABLE SCHEMES FOR A PHASE-FIELD ...  

E-Print Network [OSTI]

Phase-field, two-phase flow, Navier-Stokes, variable density, stability, energy stable ... numerical simulations, including the dynamics of an air bubble rising in

2014-04-24T23:59:59.000Z

364

Diffraction Phase Cytometry: blood on a CD-ROM  

Science Journals Connector (OSTI)

We demonstrate Diffraction Phase Cytometry (DPC) as a single shot, full-field, high throughput quantitative phase imaging modality, dedicated to analyzing whole blood smears. Utilizing...

Mir, Mustafa; Wang, Zhuo; Tangella, Krishnarao; Popescu, Gabriel

2009-01-01T23:59:59.000Z

365

Factors Affecting HCCI Combustion Phasing for Fuels with Single...  

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

Affecting HCCI Combustion Phasing for Fuels with Single- and Dual-Stage Chemistry Factors Affecting HCCI Combustion Phasing for Fuels with Single- and Dual-Stage Chemistry 2004...

366

Study of second phase in bioabsorbable magnesium alloys: Phase stability evaluation via Dmol{sup 3} calculation  

SciTech Connect (OSTI)

Thermodynamical stabilities of four conventional second phases as well as magnesium matrix in bioabsorbable magnesium alloys were investigated theoretically via computer calculation method. Model of individual phase and systems including phase and four water molecular (phase-4H{sub 2}O) were established to simulate the in vitro and in vivo environment. Local orbital density functional theory approach was applied to calculate the total energy for the individual phase and phase-4H{sub 2}O system. The results demonstrated that all the second phases possessed higher phase stability compared with magnesium matrix, but the phase stability was quite different for different types of second phases or second phase-4H{sub 2}O systems. Furthermore, a schematic process of inflammation reaction caused by magnesium alloy implants was proposed for the further evaluation on biocompatibility of different second phases.

Yang, Huazhe [Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016 (China); Department of Biophysics, China Medical University, Shenyang 110001 (China); Liu, Chen [Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016 (China); Department of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094 (China); Wan, Peng; Tan, Lili; Yang, Ke, E-mail: kyang@imr.ac.cn [Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016 (China)

2013-11-01T23:59:59.000Z

367

Phase transformations in Cu-Zr multilayers  

SciTech Connect (OSTI)

A study of phase transformations is reported for Cu-rich, Cu-Zr multilayer foils synthesized using magnetron sputter deposition and annealed using a differential scanning calorimeter. The foils range in composition from 1.6 to 9.0 at% Zr and consist of alternate layers of polycrystalline Cu and Zr. Differential scanning calorimetry, X-ray analysis and electron microscopy were used to three distinct reactions in the foils: a mixing and an amorphization of the Cu and die Zr, a crystallization on of this amorphous phase to the metastable intermetallic Cu{sub 5l}Zr{sub l4}, and a transformation of the Cu{sub 5l}Zr{sub l4} phase into the equilibrium phase Cu{sub 9}Zr{sub 2}. The as-deposited layering remained stable during the first two reactions and then broke down in the third reaction as large grains of Cu{sub 9}Zr{sub 2} encompassed the smaller Cu grains. Heats of the reactions and activation energies of these reactions are measured and are compared to values reported for bulk samples. The measured heats provide evidence that amorphous Cu-Zr alloys phase separate and that mixing and short range ordering produce 3.5 times more heat than long range ordering produces when Ca and Zr react and form Cu{sub 5l}Zr{sub l4}.

Weihs, T.P.; Barbee, T.W. Jr.; Wall, M.A.

1993-04-01T23:59:59.000Z

368

Phase Transformations in Binary Colloidal Monolayers  

E-Print Network [OSTI]

Phase transformations can be difficult to characterize at the microscopic level due to the inability to directly observe individual atomic motions. Model colloidal systems, by contrast, permit the direct observation of individual particle dynamics and of collective rearrangements, which allows for real-space characterization of phase transitions. Here, we study a quasi-two-dimensional, binary colloidal alloy that exhibits liquid-solid and solid-solid phase transitions, focusing on the kinetics of a diffusionless transformation between two crystal phases. Experiments are conducted on a monolayer of magnetic and nonmagnetic spheres suspended in a thin layer of ferrofluid and exposed to a tunable magnetic field. A theoretical model of hard spheres with point dipoles at their centers is used to guide the choice of experimental parameters and characterize the underlying materials physics. When the applied field is normal to the fluid layer, a checkerboard crystal forms; when the angle between the field and the normal is sufficiently large, a striped crystal assembles. As the field is slowly tilted away from the normal, we find that the transformation pathway between the two phases depends strongly on crystal orientation, field strength, and degree of confinement of the monolayer. In some cases, the pathway occurs by smooth magnetostrictive shear, while in others it involves the sudden formation of martensitic plates.

Ye Yang; Lin Fu; Catherine Marcoux; Joshua E. S. Socolar; Patrick Charbonneau; Benjamin B. Yellen

2015-02-10T23:59:59.000Z

369

Phase II Clinical Trial Design: Methods in Translational Research from the Genitourinary Committee at the Eastern Cooperative Oncology Group  

Science Journals Connector (OSTI)

...II trial designs. We review randomized phase II designs...optimize a trial development plan that guides phase III...II trial designs. We review randomized phase II designs...optimize a trial development plan that guides phase III...USA. | Journal Article Review | Advisory Committees...

Robert Gray; Judith Manola; Scott Saxman; John Wright; Jan Dutcher; Michael Atkins; Michael Carducci; William See; Christopher Sweeney; Glenn Liu; Mark Stein; Robert Dreicer; George Wilding; and Robert S. DiPaola

2006-04-01T23:59:59.000Z

370

Protein folding, anisotropic collapse and blue phases  

E-Print Network [OSTI]

We study a homopolymer model of a protein chain, where each monomer carries a dipole moment. To mimic the geometry of the peptidic bond, these dipoles are constrained to be locally perpendicular to the chain. The tensorial character of the dipolar interaction leads naturally to a (tensorial) liquid crystal-like order parameter. For non chiral chains, a mean field study of this model shows that a classical $\\theta$ collapse transition occurs first; at lower temperature, nematic order sets in. For chiral chains, an anisotropic (tensorial) collapse transition may occur before the $\\theta$ temperature is reached: the ordered phase can be described as a ``compact phase of secondary structures'', and possesses great similarities with the liquid crystal blue phases.

E. Pitard; T. Garel; H. Orland

1997-06-11T23:59:59.000Z

371

Friction forces on phase transition fronts  

SciTech Connect (OSTI)

In cosmological first-order phase transitions, the microscopic interaction of the phase transition fronts with non-equilibrium plasma particles manifests itself macroscopically as friction forces. In general, it is a nontrivial problem to compute these forces, and only two limits have been studied, namely, that of very slow walls and, more recently, ultra-relativistic walls which run away. In this paper we consider ultra-relativistic velocities and show that stationary solutions still exist when the parameters allow the existence of runaway walls. Hence, we discuss the necessary and sufficient conditions for the fronts to actually run away. We also propose a phenomenological model for the friction, which interpolates between the non-relativistic and ultra-relativistic values. Thus, the friction depends on two friction coefficients which can be calculated for specific models. We then study the velocity of phase transition fronts as a function of the friction parameters, the thermodynamic parameters, and the amount of supercooling.

Mgevand, Ariel, E-mail: megevand@mdp.edu.ar [IFIMAR (CONICETUNMdP), Departamento de Fsica, Facultad de Ciencias Exactas y Naturales, UNMdP, Den Funes 3350, (7600) Mar del Plata (Argentina)

2013-07-01T23:59:59.000Z

372

CBP PHASE I CODE INTEGRATION  

SciTech Connect (OSTI)

The goal of the Cementitious Barriers Partnership (CBP) is to develop a reasonable and credible set of software tools to predict the structural, hydraulic, and chemical performance of cement barriers used in nuclear applications over extended time frames (greater than 100 years for operating facilities and greater than 1000 years for waste management). The simulation tools will be used to evaluate and predict the behavior of cementitious barriers used in near surface engineered waste disposal systems including waste forms, containment structures, entombments, and environmental remediation. These cementitious materials are exposed to dynamic environmental conditions that cause changes in material properties via (i) aging, (ii) chloride attack, (iii) sulfate attack, (iv) carbonation, (v) oxidation, and (vi) primary constituent leaching. A set of state-of-the-art software tools has been selected as a starting point to capture these important aging and degradation phenomena. Integration of existing software developed by the CBP partner organizations was determined to be the quickest method of meeting the CBP goal of providing a computational tool that improves the prediction of the long-term behavior of cementitious materials. These partner codes were selected based on their maturity and ability to address the problems outlined above. The GoldSim Monte Carlo simulation program (GTG 2010a, GTG 2010b) was chosen as the code integration platform (Brown & Flach 2009b). GoldSim (current Version 10.5) is a Windows based graphical object-oriented computer program that provides a flexible environment for model development (Brown & Flach 2009b). The linking of GoldSim to external codes has previously been successfully demonstrated (Eary 2007, Mattie et al. 2007). GoldSim is capable of performing deterministic and probabilistic simulations and of modeling radioactive decay and constituent transport. As part of the CBP project, a general Dynamic Link Library (DLL) interface was developed to link GoldSim with external codes (Smith III et al. 2010). The DLL uses a list of code inputs provided by GoldSim to create an input file for the external application, runs the external code, and returns a list of outputs (read from files created by the external application) back to GoldSim. In this way GoldSim provides: (1) a unified user interface to the applications, (2) the capability of coupling selected codes in a synergistic manner, and (3) the capability of performing probabilistic uncertainty analysis with the codes. GoldSim is made available by the GoldSim Technology Group as a free 'Player' version that allows running but not editing GoldSim models. The player version makes the software readily available to a wider community of users that would wish to use the CBP application but do not have a license for GoldSim.

Smith, F.; Brown, K.; Flach, G.; Sarkar, S.

2011-09-30T23:59:59.000Z

373

ISAC SC-LINAC PHASE-II HELIUM REFRIGERATOR COMMISSIONING AND FIRST OPERATIONAL EXPERIENCE AT TRIUMF  

SciTech Connect (OSTI)

ISAC Phase-II is an upgrade of the radioactive isotope superconducting linear accelerator, SC-linac, at TRIUMF. The Phase-I section of the accelerator, medium-beta, is operational and is cooled with a 600 W helium refrigerator, commissioned in March 2005. An identical refrigerator is being used with the Phase-II segment of the accelerator; which is now under construction. The second refrigerator has been commissioned and tested with the Phase-I section of the linac and is used for Phase-II linac development, including new SC-cavity performance tests. The commissioning of the Phase-II refrigeration system and recent operational experience is presented.

Sekachev, I.; Kishi, D.; Laxdal, R. E. [TRIUMF, Vancouver, BC, V6T 2A3 (Canada)

2010-04-09T23:59:59.000Z

374

Microscopic mechanisms of metastable phase formation during ball milling of intermetallic TiAl phases  

SciTech Connect (OSTI)

Powders of the intermetallic equilibrium phases {alpha}{sub 2}-Ti{sub 3}Al, {gamma}-TiAl and TiAl{sub 3} were ball milled in order to investigate the microscopic origins of the energetic destabilization and the transformation into metastable phases during the milling process. It was found that the intermetallic phases were chemically partially disordered on milling followed by the transformation into solid solution phases after long milling. In detail, for the {gamma} phase, the formation of numerous deformation twins, thin h.c.p. lamellae and lamellae of the 9R phase formed by an antitwin operation was observed by TEM. The disordering of the D0{sub 22}-TiAl{sub 3} phase occurred inhomogeneously in the material via the formation of antiphase boundaries on (001) planes, resulting in a f.c.c. solid solution in the final state. In summary, it can be concluded that the formation of the observed metastable phases results from chemical disordering, whereas the excess enthalpy of grain boundaries plays only a minor role for the energetical destabilization of the intermetallic compounds during milling in this case.

Klassen, T.; Oehring, M.; Bormann, R. [GKSS Research Centre, Geesthacht (Germany)] [GKSS Research Centre, Geesthacht (Germany)

1997-09-01T23:59:59.000Z

375

Phase boundary detection for dilution refrigerators  

SciTech Connect (OSTI)

We describe a device to conveniently measure the positions of the phase boundaries in a dilution refrigerator. We show how a simple modification of a standard capacitive level gauge (segmentation of one of the electrodes) permits a direct calibration of the capacitance versus phase boundary position. We compare this direct calibration with the indirect procedure that must be adopted for a conventional capacitive level gauge. The device facilitates the correct adjustment of the {sup 3}He/{sup 4}He fraction in the dilution refrigerator.

Haar, E. ter; Martin, R.V. [DFMT, Instituto de Fisica, Universidade de Sao Paulo, C.P. 66.318, 05315-970 Sao Paulo, SP (Brazil)

2004-09-01T23:59:59.000Z

376

Systematic Classification of Phase Contours and Zeros  

Science Journals Connector (OSTI)

A systematic classification of phases contours and zeros is introduced and their effect on asymptotic behavior investigated. A constraint is found on the spacing of closed contours if they are not to contribute to asymptotic behavior. Use is made of a theorem due to Plya and Szeg about entire functions with real negative zeros. The concept of topological equivalence of phase contour maps is discussed. The theorem due to Plya and Szeg is applied to the fixed-angle scattering amplitude with the assumption that certain kinds of contours or zeros dominate this leads to a constraint on the order of the entire function by which the amplitude may be approximated.

G. D. Kaiser

1969-07-25T23:59:59.000Z

377

Cavity-QED-based quantum phase gate  

E-Print Network [OSTI]

are detuned by an amount D from the cavity mode 1, i.e., vbc5n11D . A quantum phase gate with a p phase shift is implemented if the atom in its ground state uc& passes through the cavity such that ~1! the detuning D is equal to g2, and ~2! the interaction...- lowing. The effective Hamiltonian for the interaction, in the di- pole and rotating-wave approximations, is H5H01H1 , ~3! where H05\

Zubairy, M. Suhail; Kim, M.; Scully, Marlan O.

2003-01-01T23:59:59.000Z

378

Gravitational Phase Transition of Heavy Neutrino Matter  

E-Print Network [OSTI]

We study the phase transition of a system of self-gravitating neutrinos in the presence of a large radiation density background in the framework of the Thomas-Fermi model. We show that, by cooling a non-degenerate gas of massive neutrinos below some critical temperature, a condensed phase emerges, consisting of quasi-degenerate supermassive neutrino stars. These compact dark objects could play an important role in structure formation in this universe, as they might in fact provide the seeds for galactic nuclei and quasi-stellar objects.

Neven Bilic; Raoul D. Viollier

1996-07-16T23:59:59.000Z

379

Frustrated phase separation and high temperature superconductivity  

SciTech Connect (OSTI)

A dilute system of neutral holes in an antiferromagnet separates into a hole-rich and a hole-poor phase. The phase separation is frustrated by long-range Coulomb interactions but, provided the dielectric constant is sufficiently large, there remain large-amplitude low-energy fluctuations in the hole density at intermediate length scales. The extensive experimental evidence showing that this behavior giver, a reasonable picture of high temperature superconductors is surveyed. Further, it is shown that the scattering of mobile holes from the local density fluctuations may account for the anomalous normal-state properties of high temperature superconductors and also provide the mechanism of pairing.

Emery, V.J. [Brookhaven National Lab., Upton, NY (United States); Kivelson, S.A. [California Univ., Los Angeles, CA (United States). Dept. of Physics

1992-09-01T23:59:59.000Z

380

Frustrated phase separation and high temperature superconductivity  

SciTech Connect (OSTI)

A dilute system of neutral holes in an antiferromagnet separates into a hole-rich and a hole-poor phase. The phase separation is frustrated by long-range Coulomb interactions but, provided the dielectric constant is sufficiently large, there remain large-amplitude low-energy fluctuations in the hole density at intermediate length scales. The extensive experimental evidence showing that this behavior giver, a reasonable picture of high temperature superconductors is surveyed. Further, it is shown that the scattering of mobile holes from the local density fluctuations may account for the anomalous normal-state properties of high temperature superconductors and also provide the mechanism of pairing.

Emery, V.J. (Brookhaven National Lab., Upton, NY (United States)); Kivelson, S.A. (California Univ., Los Angeles, CA (United States). Dept. of Physics)

1992-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "development phase phase" 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

Final Technical Report Phase I  

SciTech Connect (OSTI)

Low energy electrons (often referred to as "electron clouds") in the beam chambers of high intensity accelerators and storage rings can limit their performance. They can limit intensity by causing instabilities, unacceptable pressure increases or increases in beam size. Thus, reliable simulations of electron cloud generation in the Los Alamos high intensity Proton Storage Ring (PSR) and similar machines would be a most valuable tool for improving our understanding of its origin, the parameters that affect it and how it might be controlled. Such tools would provide cost-effective methods for designing mitigation measures and evaluating them before going to the expense of fabrication and experimental testing in an operating accelerator facility. In this project we have developed and tested several significant improvements to a widely used electron cloud simulation code, POSINST. In our version, LANLPOSINST V6, we have add several important features including the capability to model a multi-element section of the ring consisting of two quadrupole magnets with 3-dimensional magnetic fields, dipole magnet end fields, several drift spaces and various electron cloud diagnostics. Improvements were also added to the modeling of the initial primary or â??seedâ? electrons from proton beam losses. One important conclusion from benchmarking these improvements was the need to include â??seedâ? electrons produced from secondary particles resulting from the primary proton beam losses.

Dr. Robert J. Macek

2012-01-27T23:59:59.000Z

382

Hybrid phase shifted carrier modulation fed five-phase multilevel inverter for multiphase induction motor drive  

Science Journals Connector (OSTI)

This paper proposes an energy efficient modulation scheme suitable for multilevel inverter fed five-phase induction motor. Five-phase multilevel inverter provides good quality five-phase variable voltage and variable frequency supply to five-phase induction motor, which ensure reduced torque ripple and improved drive efficiency. This modulation inherits the features of fundamental frequency modulation and phase shifted carrier modulation in power conversion and resolves the contradiction between high frequency and accuracy in a digital control scheme. Base modulator and hybrid formulation control algorithms are realised with TMS320F2407 DSP processor and Xilinx XC95108 CPLD controllers. The performance studies with induction motor are evaluated in terms of power loss, weighted total harmonic distortion and torque ripple. Selected simulation and experiment results are reported to verify and validate the effectiveness of the proposed technique.

C. Govindaraju

2013-01-01T23:59:59.000Z

383

Integrated thermal treatment system study -- Phase 2 results. Revision 1  

SciTech Connect (OSTI)

This report presents the second phase of a study on thermal treatment technologies. The study consists of a systematic assessment of nineteen thermal treatment alternatives for the contact-handled mixed low-level waste (MLLW) currently stored in the US Department of Energy complex. The treatment alternatives consist of widely varying technologies for safely destroying the hazardous organic components, reducing the volume, and preparing for final disposal of the MLLW. The alternatives considered in Phase 2 were innovative thermal treatments with nine types of primary processing units. Other variations in the study examined the effect of combustion gas, air pollution control system design, and stabilization technology for the treatment residues. The Phase 1 study examined ten initial thermal treatment alternatives. The Phase 2 systems were evaluated in essentially the same manner as the Phase 1 systems. The alternatives evaluated were: rotary kiln, slagging kiln, plasma furnace, plasma gasification, molten salt oxidation, molten metal waste destruction, steam gasification, Joule-heated vitrification, thermal desorption and mediated electrochemical oxidation, and thermal desorption and supercritical water oxidation. The quantities, and physical and chemical compositions, of the input waste used in the Phase 2 systems differ from those in the Phase 1 systems, which were based on a preliminary waste input database developed at the onset of the Integrated Thermal Treatment System study. The inventory database used in the Phase 2 study incorporates the latest US Department of Energy information. All systems, both primary treatment systems and subsystem inputs, have now been evaluated using the same waste input (2,927 lb/hr). 28 refs., 88 figs., 41 tabs.

Feizollahi, F.; Quapp, W.J.

1996-02-01T23:59:59.000Z

384

Materials World Network: Phase change materials for nanoelectronics: A combinatorial approach to mechanistic understanding  

E-Print Network [OSTI]

Materials World Network: Phase change materials for nanoelectronics: A combinatorial approach protocols for CME. The US-based researchers will focus on development of new chalcogenide phase change-resolved probes to correlate these parameters with structural, electronic and phase- change properties. This CME

Olmstead, Marjorie

385

A review on Phase Change Materials Integrated in Building Walls  

E-Print Network [OSTI]

A review on Phase Change Materials Integrated in Building Walls Fr´ed´eric Kuznika, , Damien Davida review of the integration of phase change materials in building walls. Many considerations are discussed in this paper including physical considerations about building envelop and phase change material, phase change

386

Electrochemical investigations of various high-temperature superconductor phases  

Science Journals Connector (OSTI)

Electrochemical investigations of various high-temperature superconductor phases ... Electrochemistry of High-Temperature Superconductors ...

David R. Riley; A. Manthiram; John T. McDevitt

1992-11-01T23:59:59.000Z

387

Loss of spatial phase relationships in extrafoveal vision  

Science Journals Connector (OSTI)

... confused with encoding the position of points within an image, although the two descriptions are interrelated. The importance of phase in signals is obvious from the intelligibility of phase-only ... . Nevertheless, there is still confusion as to the exact role of phase in visual processing, mainly owing to the fact that phase modulation changes both the spectral composition of ...

Ingo Rentschler; Bernhard Treutwein

1985-01-24T23:59:59.000Z

388

BrightPhase Energy | Open Energy Information  

Open Energy Info (EERE)

BrightPhase Energy BrightPhase Energy Jump to: navigation, search Logo: BrightPhase Energy Name BrightPhase Energy Address 8035 East 40th Avenue Place Denver, Colorado Zip 80207 Sector Solar Product Combination PV and day-lighting modules for commerical buildings Year founded 2000 Website http://www.brightphaseenergy.c Coordinates 39.7728396°, -104.8953944° 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":39.7728396,"lon":-104.8953944,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

389

Critical point analysis of phase envelope diagram  

SciTech Connect (OSTI)

Phase diagram or phase envelope is a relation between temperature and pressure that shows the condition of equilibria between the different phases of chemical compounds, mixture of compounds, and solutions. Phase diagram is an important issue in chemical thermodynamics and hydrocarbon reservoir. It is very useful for process simulation, hydrocarbon reactor design, and petroleum engineering studies. It is constructed from the bubble line, dew line, and critical point. Bubble line and dew line are composed of bubble points and dew points, respectively. Bubble point is the first point at which the gas is formed when a liquid is heated. Meanwhile, dew point is the first point where the liquid is formed when the gas is cooled. Critical point is the point where all of the properties of gases and liquids are equal, such as temperature, pressure, amount of substance, and others. Critical point is very useful in fuel processing and dissolution of certain chemicals. Here in this paper, we will show the critical point analytically. Then, it will be compared with numerical calculations of Peng-Robinson equation by using Newton-Raphson method. As case studies, several hydrocarbon mixtures are simulated using by Matlab.

Soetikno, Darmadi; Siagian, Ucok W. R. [Department of Petroleum Engineering, Institut Teknologi Bandung, Jl. Ganesha 10, Bandung 40132 (Indonesia); Kusdiantara, Rudy, E-mail: rkusdiantara@s.itb.ac.id; Puspita, Dila, E-mail: rkusdiantara@s.itb.ac.id; Sidarto, Kuntjoro A., E-mail: rkusdiantara@s.itb.ac.id; Soewono, Edy; Gunawan, Agus Y. [Department of Mathematics, Institut Teknologi Bandung, Jl. Ganesha 10, Bandung 40132 (Indonesia)

2014-03-24T23:59:59.000Z

390

Superconducting high-pressure phases of disilane  

Science Journals Connector (OSTI)

...Superconducting high-pressure phases of disilane 10.1073/pnas.1005242107 Xilian...DC 20015 High-pressure structures of disilane (Si2H6) are investigated extensively...linear-response calculations for Pm-3m disilane at 275 GPa show a large electron-phonon...

Xilian Jin; Xing Meng; Zhi He; Yanming Ma; Bingbing Liu; Tian Cui; Guangtian Zou; Ho-kwang Mao

2010-01-01T23:59:59.000Z

391

Phase singularities in isotropic random waves  

Science Journals Connector (OSTI)

...dislocation statistics we will calculate are gauge invariant in the sense of being unaltered by any smooth (r and t dependent) rede nition of phase , or, equivalently, any smooth rotation in , space. For the average of any quantity F over the ensemble of...

2000-01-01T23:59:59.000Z

392

Phase change thermal energy storage material  

DOE Patents [OSTI]

A thermal energy storge composition is disclosed. The composition comprises a non-chloride hydrate having a phase change transition temperature in the range of 70.degree.-95.degree. F. and a latent heat of transformation of at least about 35 calories/gram.

Benson, David K. (Golden, CO); Burrows, Richard W. (Conifer, CO)

1987-01-01T23:59:59.000Z

393

The Phase of the Scattering Matrix  

E-Print Network [OSTI]

Vacuum polarization in external fields is treated by way of calculating - exactly and then perturbatively - the phase of the quantum scattering matrix in the Shale-Stinespring approach to field theory. The link between the Shale-Stinespring method and the Epstein-Glaser renormalization procedure is highlighted.

Graca-Bonda, Jos M

2000-01-01T23:59:59.000Z

394

ALL ABOUT PHASE Robert C. Maher  

E-Print Network [OSTI]

in handling phase-related engineering questions. Index Terms-- Engineering education, Delay effects, Signal, the material could easily be adjusted to suit the needs of a basic course in linear systems or an introductory(deg) Bode Diagram Frequency (rad/sec)Normalized Frequency (rad/sec) Figure 2: Bode diagram for RC circuit

Maher, Robert C.

395

Yakima Basin Fish Passage Project, Phase 2  

SciTech Connect (OSTI)

Implementation of the Yakima Basin Fish Passage Project -- Phase 2 would significantly improve the production of anadromous fish in the Yakima River system. The project would provide offsite mitigation and help to compensate for lower Columbia River hydroelectric fishery losses. The Phase 2 screens would allow greater numbers of juvenile anadromous fish to survive. As a consequence, there would be higher returns of adult salmon and steelhead to the Yakima River. The proposed action would play an integral part in the overall Yakima River anadromous fish enhancement program (fish passage improvement, habitat enhancement, hatchery production increases, and harvest management). These would be environmental benefits associated with implementation of the Fish Passage and Protective Facilities Phase 2 Project. Based on the evaluation presented in this assessment, there would be no significant adverse environmental impacts if the proposed action was carried forward. No significant adverse environmental effects have been identified from construction and operation of the Yakima Phase 2 fish passage project. Proper design and implementation of the project will ensure no adverse effects will occur. Based on the information in this environmental analysis, BPA's and Reclamation's proposal to construct these facilities does not constitute a major Federal action that could significantly affect the quality of the human environment. 8 refs., 4 figs., 6 tabs.

Not Available

1991-08-01T23:59:59.000Z

396

Passive Supporters of Terrorism and Phase Transitions  

E-Print Network [OSTI]

We discuss some social contagion processes to describe the formation and spread of radical opinions. The dynamics of opinion spread involves local threshold processes as well as mean field effects. We calculate and observe phase transitions in the dynamical variables resulting in a rapidly increasing number of passive supporters. This strongly indicates that military solutions are inappropriate.

August, Friedrich; Delitzscher, Sascha; Hiller, Gerald; Krueger, Tyll

2010-01-01T23:59:59.000Z

397

Direct phasing from Patterson syntheses by recycling  

Science Journals Connector (OSTI)

A new direct-space variant of the direct methods origin-free Patterson (or modulus) sum function is introduced. In the presence of atomicity, its application reduces, for each phase refinement cycle, to a synthesis with E2 - (or E - ) as Fourier coefficients followed by structure-factor calculation from the strongest peaks in the resulting map.

Rius, J.

2011-11-17T23:59:59.000Z

398

Comment on ``Phase Coexistence in Multifragmentation''  

E-Print Network [OSTI]

This comment on Moretto et al.PRL 76:372,1996 argues that the IMF-charge distribution may not be useful as signal for phase-transitions in nuclear multifragmentation. Fluctuations of different origin may corrupt this signal. Energy conservation is as important as charge conservation. The caloric equation of state is more safe.

D. H. E. Gross; A. S. Botvina

1996-07-18T23:59:59.000Z

399

Stationary Phases for Thin-Layer Chromatography  

Science Journals Connector (OSTI)

......November/December 2002 3 silica-gel plates...hydroxyl groups, oxide (O2) ions, and...phases with strengths (epsilon) in the range of...impregnated with 0.3 g L-aspartic acid...having chloride, iron, and lead as impurities...Acetonitrilemethanol (16:3, v/v) was used......

Simion Gocan

400

BRAND STANDARDS: PHASE I brand tools  

E-Print Network [OSTI]

, cohesive image. #12;www.mun.ca why brand standards? Strong brands: · Attract talented people: studentswww.mun.ca BRAND STANDARDS: PHASE I new and improved brand tools #12;www.mun.ca What is a brand? #12;www.mun.ca What is a brand? American Marke,ng Associa,on Glossary "A brand

Oyet, Alwell

Note: This page contains sample records for the topic "development phase phase" 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

Thermodynamics of mantle minerals - II. Phase equilibria  

Science Journals Connector (OSTI)

......initiate the calculation with a better...multipliers, which does not reduce...Crystallography: A Handbook of Physical...2004. Electronic transitions...Crystallography: A Handbook of Physical...partitioning and calculation of phase-relations...Crystallography: A Handbook of Physical...2006a. Electronic spin transitions...first-principles calculations, Earth planet......

Lars Stixrude; Carolina Lithgow-Bertelloni

2011-03-01T23:59:59.000Z

402

Landau theory of phase separation in cuprates  

Science Journals Connector (OSTI)

I discuss the problem of phase separation in cuprates from the point of view of the Landau theory of Fermi liquids. I calculate the rate of growth of unstable regions for the hydrodynamics and collisionless limit and, in presence of long-range Coulomb interactions, the size of these regions. These are analytic results valid for any strength of the Landau parameters.

A. H. Castro Neto

1995-02-01T23:59:59.000Z

403

PHASE RECOVERY WITH NONDECAYING POTENTIALS Tuncay Aktosun  

E-Print Network [OSTI]

?odinger equation, Nondecaying potentials, Steplike potentials, Neutron reflectometry Short title: Phase recovery of recent papers on X­ray and neutron reflectometry [4,5], which is thus the main motivation for our work. These are mainly reasonable assumptions for some reflectometry applications, but 2 #12; nevertheless

404

Correlation between gas-phase and solution-phase reactivities of hydroxyl radicals toward saturated organic compounds  

SciTech Connect (OSTI)

The gas-phase and aqueous-solution-phase reactivities of hydroxyl radicals with a wide variety of organic compounds are compared. When kinetic data are available for the same reaction occurring in both phases, this comparison provides useful information about the reaction mechanism. Through this comparison the authors can demonstrate a linear correlation between the gas/solution-phase OH reactivities for numerous saturated organic compounds. This empirical relationship can be used together with mechanistic information to estimate the OH reactivity in one phase from the measured rate constant in the other. In order to develop and extend the correlation, they have used the flash photolysis resonance fluorescence technique to measure rate constants for the gas-phase reactions of OH radicals with methanol-d/sub 4/, ethanol-d/sub 6/, 2-chloroethanol, 2,2,2-trichloroethanol, 2,2,2-trifluoroethanol, acetone-d/sub 6/, 1,1,1-trifluoroacetone, and 1,2-butylene oxide at 298 K. These results are reported herein.

Wallington, T.J.; Dagaut, P.; Kurylo, M.J.

1988-08-25T23:59:59.000Z

405

EA-1886: Big Sky Regional Carbon Sequestration Partnership - Phase III:  

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

886: Big Sky Regional Carbon Sequestration Partnership - Phase 886: Big Sky Regional Carbon Sequestration Partnership - Phase III: Large Volume CO2 Injection-Site Characterization, Well Drilling, and Infrastructure Development, Injection, MVA, and Site Closure, Kevin Dome, Toole County, Montana EA-1886: Big Sky Regional Carbon Sequestration Partnership - Phase III: Large Volume CO2 Injection-Site Characterization, Well Drilling, and Infrastructure Development, Injection, MVA, and Site Closure, Kevin Dome, Toole County, Montana SUMMARY This EA will evaluate the environmental impacts of a proposal for the Big Sky Carbon Sequestration Regional Partnership to demonstrate the viability and safety of CO2 storage in a regionally significant subsurface formation in Toole County, Montana and to promote the commercialization of future

406

EA-1886: Big Sky Regional Carbon Sequestration Partnership - Phase III:  

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

6: Big Sky Regional Carbon Sequestration Partnership - Phase 6: Big Sky Regional Carbon Sequestration Partnership - Phase III: Large Volume CO2 Injection-Site Characterization, Well Drilling, and Infrastructure Development, Injection, MVA, and Site Closure, Kevin Dome, Toole County, Montana EA-1886: Big Sky Regional Carbon Sequestration Partnership - Phase III: Large Volume CO2 Injection-Site Characterization, Well Drilling, and Infrastructure Development, Injection, MVA, and Site Closure, Kevin Dome, Toole County, Montana SUMMARY This EA will evaluate the environmental impacts of a proposal for the Big Sky Carbon Sequestration Regional Partnership to demonstrate the viability and safety of CO2 storage in a regionally significant subsurface formation in Toole County, Montana and to promote the commercialization of future

407

Method and apparatus for optical phase error correction  

DOE Patents [OSTI]

The phase value of a phase-sensitive optical device, which includes an optical transport region, is modified by laser processing. At least a portion of the optical transport region is exposed to a laser beam such that the phase value is changed from a first phase value to a second phase value, where the second phase value is different from the first phase value. The portion of the optical transport region that is exposed to the laser beam can be a surface of the optical transport region or a portion of the volume of the optical transport region. In an embodiment of the invention, the phase value of the optical device is corrected by laser processing. At least a portion of the optical transport region is exposed to a laser beam until the phase value of the optical device is within a specified tolerance of a target phase value.

DeRose, Christopher; Bender, Daniel A.

2014-09-02T23:59:59.000Z

408

Phase Startup Initiative Phases 3 and 4 Test Plan and Test Specification ( OCRWM)  

SciTech Connect (OSTI)

Construction for the Spent Nuclear Fuel (SNF) Project facilities is continuing per the Level III Baseline Schedule, and installation of the Fuel Retrieval System (FRS) and Integrated Water Treatment System (IWTS) in K West Basin is now complete. In order to accelerate the project, a phased start up strategy to initiate testing of the FRS and IWTS early in the overall project schedule was proposed (Williams 1999). Wilkinson (1999) expands the definition of the original proposal into four functional testing phases of the Phased Startup Initiative (PSI). Phases 1 and 2 are based on performing functional tests using dummy fuel. This test plan provides overall guidance for Phase 3 and 4 tests, which are performed using actual irradiated N fuel assemblies. The overall objective of the Phase 3 and 4 testing is to verify how the FRS and IWTS respond while processing actual fuel. Conducting these tests early in the project schedule will allow identification and resolution of equipment and process problems before they become activities on the start-up critical path. The specific objectives of this test plan are to: Define the Phase 3 and 4 test scope for the FRS and IWTS; Provide detailed test requirements that can be used to write the specific test procedures; Define data required and measurements to be taken. Where existing methods to obtain these do not exist, enough detail will be provided to define required additional equipment; and Define specific test objectives and acceptance criteria.

PAJUNEN, A.L.; LANGEVIN, M.J.

2000-08-07T23:59:59.000Z

409

Technology verification phase. Dynamic isotope power system. Final report  

SciTech Connect (OSTI)

The Phase I requirements of the Kilowatt Isotope Power System (KIPS) program were to make a detailed Flight System Conceptual Design (FSCD) for an isotope fueled organic Rankine cycle power system and to build and test a Ground Demonstration System (GDS) which simulated as closely as possible the operational characteristics of the FSCD. The activities and results of Phase II, the Technology Verification Phase, of the program are reported. The objectives of this phase were to increase system efficiency to 18.1% by component development, to demonstrate system reliability by a 5000 h endurance test and to update the flight system design. During Phase II, system performance was improved from 15.1% to 16.6%, an endurance test of 2000 h was performed while the flight design analysis was limited to a study of the General Purpose Heat Source, a study of the regenerator manufacturing technique and analysis of the hardness of the system to a laser threat. It was concluded from these tests that the GDS is basically prototypic of a flight design; all components necessary for satisfactory operation were demonstrated successfully at the system level; over 11,000 total h of operation without any component failure attested to the inherent reliability of this type of system; and some further development is required, specifically in the area of performance. (LCL)

Halsey, D.G.

1982-03-10T23:59:59.000Z

410

Combined experiment Phase 2 data characterization  

SciTech Connect (OSTI)

The National Renewable Energy Laboratory`s ``Combined Experiment`` has yielded a large quantity of experimental data on the operation of a downwind horizontal axis wind turbine under field conditions. To fully utilize this valuable resource and identify particular episodes of interest, a number of databases were created that characterize individual data events and rotational cycles over a wide range of parameters. Each of the 59 five-minute data episodes collected during Phase 11 of the Combined Experiment have been characterized by the mean, minimum, maximum, and standard deviation of all data channels, except the blade surface pressures. Inflow condition, aerodynamic force coefficient, and minimum leading edge pressure coefficient databases have also been established, characterizing each of nearly 21,000 blade rotational cycles. In addition, a number of tools have been developed for searching these databases for particular episodes of interest. Due to their extensive size, only a portion of the episode characterization databases are included in an appendix, and examples of the cycle characterization databases are given. The search tools are discussed and the FORTRAN or C code for each is included in appendices.

Miller, M.S.; Shipley, D.E.; Young, T.S.; Robinson, M.C.; Luttges, M.W. [Colorado Univ., Boulder, CO (United States); Simms, D.A. [National Renewable Energy Lab., Golden, CO (United States)

1995-11-01T23:59:59.000Z

411

2009 Phase II Proposal A2.06-8042  

E-Print Network [OSTI]

) can be used to optimize properties (high strength and low thermal conductivity) for both the virgin thermal protection systems (TPS) of space vehicles. This materials development software package (MDSAM material has merit and should yield a successful implementation of a spectrometer "window" during a Phase

412

NOVEL SLURRY PHASE DIESEL CATALYSTS FOR COAL-DERIVED SYNGAS  

SciTech Connect (OSTI)

This report describes research conducted to support the DOE program in novel slurry phase catalysts for converting coal-derived synthesis gas to diesel fuels. The primary objective of this research program is to develop attrition resistant catalysts that exhibit high activities for conversion of coal-derived syngas.

Dr. Dragomir B. Bukur; Dr. Ketil Hanssen; Alec Klinghoffer; Dr. Lech Nowicki; Patricia O'Dowd; Dr. Hien Pham; Jian Xu

2001-01-07T23:59:59.000Z

413

Envelope/phase delays correction in an EER radio architecture  

E-Print Network [OSTI]

Envelope/phase delays correction in an EER radio architecture Jean-François BERCHER and Corinne -- In this paper we consider the sensitivity of a transmitter based on EER radio architecture to time mismatches the interest of this approach. I. INTRODUCTION Envelope Elimination and restoration (EER) was developed by Kahn

Bercher, Jean-François

414

2009 Phase II Proposal A3.01-8419  

E-Print Network [OSTI]

, which is being used by NASA to conduct airport ATC operations analysis. What is missing from ATC who is trying to obtain data and conduct detailed analyses of ATC operations. During the Phase I a small collision avoidance radar currently under development for UAV operation. Collision prediction

415

Phase formation and phase transformations in Bi-Te films with nanoscale thickness  

SciTech Connect (OSTI)

The processes of phase formation are studied in a binary Bi-Te system using the kinematic electron diffraction technique. It is established that, in the case of both simultaneous and layer-by-layer deposition of bismuth and tellurium and irrespective of the order of their deposition, phases with compositions Bi{sub 2}Te{sub 3} and BiTe are formed at the condensation plane in the amorphous and crystalline state, respectively. The amorphous Bi{sub 2}Te{sub 3} phase is stable at room temperature and crystallizes at a temperature of 423 K. It is shown that ordering of the phase BiTe is not a consequence of atomic order of the structure; rather, it is caused by the real structure of the object (by blocks)

Akhmedov, K. M. [National Academy of Sciences of Azerbaijan, Institute of Physics (Azerbaijan)], E-mail: axmedovqurban@rambler.ru

2008-09-15T23:59:59.000Z

416

Determining the phase-energy coupling coefficient in carrier-envelope phase measurements  

Science Journals Connector (OSTI)

For f-to-2f interferometers based on white-light generation in sapphire plates, the accuracy of the carrier-envelope (CE) phase measurement and stabilization is affected by the laser...

Li, Chengquan; Moon, Eric; Wang, He; Mashiko, Hiroki; Nakamura, Christopher M; Tackett, Jason; Chang, Zenghu

2007-01-01T23:59:59.000Z

417

Resonantly phase-matched Josephson junction traveling wave parametric amplifier  

E-Print Network [OSTI]

We develop a technique to overcome phase-mismatch in Josephson-junction traveling wave parametric amplifiers in order to achieve high gain over a broad bandwidth. Using "resonant phase matching," we design a compact superconducting device consisting of a transmission line with subwavelength resonant inclusions that simultaneously achieves a gain of 20 dB, an instantaneous bandwidth of 3 GHz, and a saturation power of -98 dBm. Such an amplifier is well-suited to cryogenic broadband microwave measurements such as the multiplexed readout of quantum coherent circuits based on superconducting, semiconducting, or nano-mechanical elements as well as traditional astronomical detectors.

Kevin O'Brien; Chris Macklin; Irfan Siddiqi; Xiang Zhang

2014-06-09T23:59:59.000Z

418

Phase change based cooling for high burst mode heat loads with temperature regulation above the phase change temperature  

DOE Patents [OSTI]

An apparatus and method for transferring thermal energy from a heat load is disclosed. In particular, use of a phase change material and specific flow designs enables cooling with temperature regulation well above the fusion temperature of the phase change material for medium and high heat loads from devices operated intermittently (in burst mode). Exemplary heat loads include burst mode lasers and laser diodes, flight avionics, and high power space instruments. Thermal energy is transferred from the heat load to liquid phase change material from a phase change material reservoir. The liquid phase change material is split into two flows. Thermal energy is transferred from the first flow via a phase change material heat sink. The second flow bypasses the phase change material heat sink and joins with liquid phase change material exiting from the phase change material heat sink. The combined liquid phase change material is returned to the liquid phase change material reservoir. The ratio of bypass flow to flow into the phase change material heat sink can be varied to adjust the temperature of the liquid phase change material returned to the liquid phase change material reservoir. Varying the flowrate and temperature of the liquid phase change material presented to the heat load determines the magnitude of thermal energy transferred from the heat load.

The United States of America as represented by the United States Department of Energy (Washington, DC)

2009-12-15T23:59:59.000Z

419

Second Generation PFBC Systems R&D - Phase 2 and Phase 3  

SciTech Connect (OSTI)

When DOE funds were exhausted in March 1995, all Phase 2 activities were placed on hold. In February 1996 a detailed cost estimate was submitted to the DOE for completing the two remaining Phase 2 Multi Annular Swirl Burner (MASB) topping combustor test campaigns; in August 1996 release was received from FETC to proceed with the two campaigns to: (1) test the MASB at proposed demonstration plant full to minimum load operating conditions; (2) identify the lower oxygen limit of the MASB; (3) demonstrate natural gas to carbonizer fuel gas switching; and (4) demonstrate operation with ''low temperature'' compressor discharge air rather than high temperature ({approx} 1600 F) vitiated air. The 18 in. MASB was last tested at the University of Tennessee Space Institute (UTSI) in a high-oxygen configuration and must be redesigned/modified for low oxygen operation. A second-generation PFB combustion plant incorporating an MASB based topping combustor has been proposed for construction at the City of Lakeland's McIntosh Power Plant under the U.S. DOE Clean Coal V Demonstration Plant Program. This plant will require the MASB to operate at oxygen levels that are lower than those previously tested. Preliminary calculations aimed at defining the operating envelope of the demonstration plant MASB have been completed. The previous MASB tests have been performed at UTSI in a facility constructed to support the development of MHD power generation. Because of a loss of MHD funding, the UTSI facility closed October 1998. On February 2, 1999, Siemens Westinghouse proposed a 12-week study that would identify the cost of modifying the MASB for Lakeland low oxygen operation conditions and conducting tests 3 and 4 above at the Arnold Engineering Development Center (AEDC). On February 22, 1999, Siemens Westinghouse was given release to proceed with this study and results/recommendations were received on April 22, 1999. Siemens Westinghouse recommended a two-phase test effort. The first test effort would entail two 6-hour tests beginning November 1999 with the MASB operated with natural gas and ''cold'' compressor air. The MASB would be tested at full Lakeland pressure using the physical configuration planned for operation at lower pressure at Wilsonville in September 1999. As a result, the MASB test specimen would be a totally new unit (not a modification of a previously UTSI tested unit). The MASB would be installed in an existing AEDC test shell as shown in Fig. 1. Although the internals currently installed within the shell would have to be removed and reinstalled at the completion of the first test phase, no major facility modifications external to the shell are needed; this first test effort was estimated to cost $1.2 million. Although the second test effort was not the subject of this initial study, Siemens Westinghouse envisioned it being conducted in another AEDC test cell that is currently mothballed. The facility has been well preserved and it would be modified to permit syngas testing with both cold and hot vitiated air; these tests would not be conducted until the fall 2000 and were estimated to cost $3.2 million. Written questions were submitted to Siemens Westinghouse regarding their proposed test programs; their responses and cost estimates were transmitted to FETC on April 30, 1999. Review of the proposed programs by FETC revealed that they exceeded existing funding limits, and all further Phase 2 work was put on hold until additional funding becomes available.

A. Robertson

1999-10-25T23:59:59.000Z

420

Hoover Dam Bypass Project Phase II  

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

DOE/EA-1478 DOE/EA-1478 ENVIRONMENTAL ASSESSMENT Western' s Hoover Dam Bypass Project Phase II (Double-Circuiting a Portion of the Hoover-Mead #5 and #7 230-kV Transmission Lines with the Henderson-Mead #1 230-kV Transmission Line, Clark County, Nevada) Prepared for: U.S. Department of Energy Western Area Power Administration 615 S. 43 rd Avenue Phoenix, Arizona 85009 Prepared by: Transcon Environmental 3740 East Southern Avenue, Suite 218 Mesa, Arizona 85206 (480) 807-0095 October 2003 Western Area Power Administration Hoover Dam Bypass Project Phase II page i Environmental Assessment TABLE OF CONTENTS 1.0 INTRODUCTION ............................................................................................................................1 1.1 Background..................................................................................................................................1

Note: This page contains sample records for the topic "development phase phase" 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

Silicotitanate molecular sieve and condensed phases  

DOE Patents [OSTI]

A new microporous crystalline molecular sieve material having the formula Cs.sub.3 TiSi.sub.3 O.sub.95.cndot.3H.sub.2 O and its hydrothermally condensed phase, Cs.sub.2 TiSi.sub.6 O.sub.15, are disclosed. The microporous material can adsorb divalent ions of radionuclides or other industrial metals such as chromium, nickel, lead, copper, cobalt, zinc, cadmium, barium, and mercury, from aqueous or hydrocarbon solutions. The adsorbed metal ions can be leached out for recovery purposes or the microporous material can be hydrothermally condensed to a radiation resistant, structurally and chemically stable phase which can serve as a storage waste form for radionuclides.

Nenoff, Tina M. (Albuquerque, NM); Nyman, May D. (Albuquerque, NM)

2002-01-01T23:59:59.000Z

422

Probing the QCD phase diagram with fluctuations  

E-Print Network [OSTI]

The relevance of higher order cumulants of conserved charges for the analysis of freeze-out and critical conditions in heavy ion collisions at LHC and RHIC is discussed. Using properties of $O(4)$ scaling functions, the generic structure of these higher cumulants at vanishing baryon chemical potential is discussed. Chiral model calculations are then used to study their properties at non-zero baryon chemical potential. It is argued that the rapid variation of sixth and higher order cumulants at the phase boundary may be used to explore the QCD phase diagram in experiment. Moreover, results for the Polyakov loop susceptibilities in SU(3) lattice gauge theory as well as in (2+1) flavor lattice QCD are discussed. An analysis of the ratios of susceptibilities indicates that the deconfinement transition is reflected in characteristic modifications of these ratios.

Friman, Bengt

2014-01-01T23:59:59.000Z

423

Two-phase flow in horizontal wells  

SciTech Connect (OSTI)

Flow in horizontal wells and two-phase flow interaction with the reservoir were investigated experimentally and theoretically. Two-phase flow behavior has been recognized as one of the most important problems in production engineering. The authors designed and constructed a new test facility suitable for acquiring data on the relationship between pressure drop and liquid holdup along the well and fluid influx from the reservoir. For the theoretical work, an initial model was proposed to describe the flow behavior in a horizontal well configuration. The model uses the inflow-performance-relationship (IPR) approach and empirical correlations or mechanistic models for wellbore hydraulics. Although good agreement was found between the model and experimental data, a new IPR apart from the extension of Darcy`s law must be investigated extensively to aid in the proper design of horizontal wells.

Ihara, Masaru [Japan National Oil Corp., Chiba (Japan); Yanai, Koji [Nippon Kokan Corp., Yokohama (Japan); Yanai, Koji

1995-11-01T23:59:59.000Z

424

Tunable hyperbolic metamaterials utilizing phase change heterostructures  

SciTech Connect (OSTI)

We present a metal-free tunable anisotropic metamaterial where the iso-frequency surface is tuned from elliptical to hyperbolic dispersion by exploiting the metal-insulator phase transition in the correlated material vanadium dioxide (VO{sub 2}). Using VO{sub 2}-TiO{sub 2} heterostructures, we demonstrate the transition in the effective dielectric constant parallel to the layers to undergo a sign change from positive to negative as the VO{sub 2} undergoes the phase transition. The possibility to tune the iso-frequency surface in real time using external perturbations such as temperature, voltage, or optical pulses creates new avenues for controlling light-matter interaction.

Krishnamoorthy, Harish N. S.; Menon, Vinod M., E-mail: vmenon@qc.cuny.edu [Department of Physics, Queens College of the City University of New York and Center for Photonic and Multiscale Nanomaterials, Queens, New York 11367 (United States); Department of Physics, Graduate Center of the City University of New York, New York, New York 10016 (United States); Zhou, You; Ramanathan, Shriram [School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138 (United States); Narimanov, Evgenii [Birck Nanotechnology Center, School of Computer and Electrical Engineering, Purdue University, West Lafayette, Indiana 47907 (United States)

2014-03-24T23:59:59.000Z

425

Topological phase transitions in superradiance lattices  

E-Print Network [OSTI]

The discovery of the quantum Hall effect (QHE) reveals a new class of matter phases, topological insulators (TI's), which have been extensively studied in solid-state materials and recently in photonic structures, time-periodic systems and optical lattices of cold atoms. All these topological systems are lattices in real space. Our recent study shows that Scully's timed Dicke states (TDS) can form a superradiance lattice (SL) in momentum space. Here we report the discovery of topological phase transitions in a two-dimensional SL in electromagnetically induced transparency (EIT). By periodically modulating the three EIT coupling fields, we can create a Haldane model with in-situ tunable topological properties. The Chern numbers of the energy bands and hence the topological properties of the SL manifest themselves in the contrast between diffraction signals emitted by superradiant TDS. The topological superradiance lattices (TSL) provide a controllable platform for simulating exotic phenomena in condensed matte...

Wang, Da-Wei; Yuan, Luqi; Liu, Ren-Bao; Zhu, Shi-Yao

2015-01-01T23:59:59.000Z

426

Phase diagram of half-doped manganites  

Science Journals Connector (OSTI)

The phase diagram of half-doped manganites which may consist of experimentally observed ferromagnetic (FM), A-,C-, and charge-exchange (CE)-type antiferromagnetic (AF) states is obtained in terms of a model which is based on double exchange via degenerate eg orbitals, the on-site Coulomb interaction (U), and the nearest-neighbor Coulomb interaction (V). We find that, because of the strong spatial anisotropy of the electron hoppings, the on-site Coulomb interaction has different effects on these magnetic order states. As a result, large values of U suppress the FM state and favor the A- and C-type AF states. Moreover, we show that it is the interplay between the on-site and nearest-neighbor Coulomb repulsions that stabilizes the CE phase and results in the charge ordering in the state.

Zhenghuang Shu; Jinming Dong; D. Y. Xing

2001-05-18T23:59:59.000Z

427

Phase sensor for solar adaptive-optics  

E-Print Network [OSTI]

Wavefront sensing in solar adaptive-optics is currently done with correlating Shack-Hartmann sensors, although the spatial- and temporal-resolutions of the phase measurements are then limited by the extremely fast computing required to correlate the sensor signals at the frequencies of daytime atmospheric-fluctuations. To avoid this limitation, a new wavefront-sensing technique is presented, that makes use of the solar brightness and is applicable to extended sources. The wavefront is sent through a modified Mach-Zehnder interferometer. A small, central part of the wavefront is used as reference and is made to interfere with the rest of the wavefront. The contrast of two simultaneously measured interference-patterns provides a direct estimate of the wavefront phase, no additional computation being required. The proposed optical layout shows precise initial alignment to be the critical point in implementing the new wavefront-sensing scheme.

Kellerer, Aglae

2011-01-01T23:59:59.000Z

428

Adaptive Competition, Market Efficiency, and Phase Transitions  

Science Journals Connector (OSTI)

In many social and biological systems agents simultaneously and adaptively compete for limited resources, thereby altering their environment. We analyze a simple model that incorporates fundamental features of such systems. If the space of strategies available to the agents is small, the system is in a phase in which all information available to the agents' strategies is traded away, and agents' choices are maladaptive, resulting in a poor collective utilization of resources. For larger strategy spaces, the system is in a phase in which the agents are able to coordinate their actions to achieve a better utilization of resources. The best utilization of resources occurs at a critical point, when the dimension of the strategy space is on the order of the number of agents.

Robert Savit; Radu Manuca; Rick Riolo

1999-03-08T23:59:59.000Z

429

Retrieval of phase information in neutron reflectometry  

SciTech Connect (OSTI)

Neutron reflectometry can determine unambiguously the chemical depth profile of a thin film if both phase and amplitude of the reflectance are known. The recovery of the phase information is achieved by adding to the unknown layered structure a known ferromagnetic layer. The ferromagnetic layer is magnetized by an external magnetic field in a direction lying in the plane of the layer and subsequently perpendicular to it. The neutrons are polarized either parallel or opposite to the magnetic field. In this way three measurements can be made, with different (and known) scattering-length densities of the ferromagnetic layer. The reflectivity obtained from each measurement can be represented by a circle in the (complex) reflectance plane. The intersections of these circles provide the reflectance.

de Haan, V.; van Well, A.A. [Interfacultair Reactor Instituut, Delft University of Technology, Mekelweg 15, 2629 JB Delft (Netherlands)] [Interfacultair Reactor Instituut, Delft University of Technology, Mekelweg 15, 2629 JB Delft (Netherlands); Adenwalla, S.; Felcher, G.P. [Argonne National Laboratory, Argonne, Illinois 60439 (United States)] [Argonne National Laboratory, Argonne, Illinois 60439 (United States)

1995-10-15T23:59:59.000Z

430

Milford Wind Corridor Phase II | Open Energy Information  

Open Energy Info (EERE)

Milford Wind Corridor Phase II Milford Wind Corridor Phase II Facility Milford Wind Corridor Phase II Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner First Wind Developer First Wind Energy Purchaser Southern California Public Power Authority Location Millard and Beaver County UT Coordinates 38.645608°, -112.878027° 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":38.645608,"lon":-112.878027,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

431

Kotzebue Wind Project Phase I | Open Energy Information  

Open Energy Info (EERE)

Kotzebue Wind Project Phase I Kotzebue Wind Project Phase I Facility Kotzebue Wind Project Phase I Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner Kotzebue Electric Assoc. Developer Kotzebue Electric Association Energy Purchaser Kotzebue Electric Assoc. Location Kotzebue AK Coordinates 66.83907°, -162.551315° 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":66.83907,"lon":-162.551315,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

432

Brigantine OffshoreMW Phase 2 | Open Energy Information  

Open Energy Info (EERE)

Brigantine OffshoreMW Phase 2 Brigantine OffshoreMW Phase 2 Facility Brigantine OffshoreMW Phase 2 Sector Wind energy Facility Type Offshore Wind Facility Status Proposed Owner OffshoreMW Developer OffshoreMW Location Atlantic Ocean NJ Coordinates 39.348°, -73.969° 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":39.348,"lon":-73.969,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

433

Np Behavior in Synthesized Uranyl Phases: Results of Initial Tests  

SciTech Connect (OSTI)

Initial tests were completed at Pacific Northwest National Laboratory for developing a potential mechanism to retard the mobility of neptunium at the Yucca Mountain repository. Neptunium is of concern because of its mobility in the environment and long half life, contributing a large percentage of the potential dose over extended times at the perimeter of the site. The mobility of neptunium could be retarded by associating with uranium mineral phases. The following four uranium mineral phases were examined and are potential secondary phases expected to form as a result of interactions of spent nuclear fuel with the local environment: meta-schoepite, studtite, uranophane, and sodium boltwoodite. The fate of the neptunium was examined in these synthetic experiments.

Friese, Judah I.; Douglas, Matthew; McNamara, Bruce K.; Clark, Sue B.; Hanson, Brady D.

2004-09-28T23:59:59.000Z

434

Hopper (Phase 1) Prepares NERSC for Petascale Computing  

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

Hopper (Phase 1) Hopper (Phase 1) Prepares NERSC for Petascale Computing Hopper (Phase 1) Prepares NERSC for Petascale Computing February 26, 2010 After several months of rigorous scientific testing, the Department of Energy's (DOE) National Energy Research Scientific Computing Center (NERSC) has accepted a 5,312-core Cray XT5 machine, called Hopper (Phase 1). Innovatively built with external login nodes and an external filesystem, Hopper Phase 1 will help NERSC staff optimize the external node architecture before the second phase of the Hopper system arrives. Phase 2 will be a petascale system comprised of 150,000 processor cores and built on next generation Cray technology. "Working out the kinks in Phase 1 will ensure a more risk-free deployment when Phase 2 arrives," says Jonathan Carter, who heads NERSC's User

435

Midwest Geological Sequestration Consortium--Validation Phase  

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

Geological Sequestration Geological Sequestration Consortium-Validation Phase Background The U.S. Department of Energy (DOE) has selected seven partnerships, through its Regional Carbon Sequestration Partnership (RCSP) initiative, to determine the best approaches for capturing and permanently storing carbon dioxide (CO 2 ), a greenhouse gas (GHG) which can contribute to global climate change. The RCSPs are made up of state and local agencies, coal companies, oil and gas companies, electric utilities,

436

Spinodal phase decomposition with dissipative fluid dynamics  

SciTech Connect (OSTI)

The spinodal amplification of density fluctuations is treated perturbatively within dissipative fluid dynamics including not only shear and bulk viscosity but also heat conduction, as well as a gradient term in the local pressure. The degree of spinodal amplification is calculated along specific dynamical phase trajectories and the results suggest that the effect can be greatly enhanced by tuning the collision energy so that maximum compression occurs inside the region of spinodal instability.

Randrup, J., E-mail: JRandrup@LBL.gov [Lawrence Berkeley Laboratory, Nuclear Science Division (United States)

2012-06-15T23:59:59.000Z

437

Associative memory in phasing neuron networks  

SciTech Connect (OSTI)

We studied pattern formation in a network of coupled Hindmarsh-Rose model neurons and introduced a new model for associative memory retrieval using networks of Kuramoto oscillators. Hindmarsh-Rose Neural Networks can exhibit a rich set of collective dynamics that can be controlled by their connectivity. Specifically, we showed an instance of Hebb's rule where spiking was correlated with network topology. Based on this, we presented a simple model of associative memory in coupled phase oscillators.

Nair, Niketh S [ORNL; Bochove, Erik J. [United States Air Force Research Laboratory, Kirtland Air Force Base; Braiman, Yehuda [ORNL

2014-01-01T23:59:59.000Z

438

FLUID BIAXIAL BANANA PHASES: SYMMETRY AT WORK  

E-Print Network [OSTI]

FLUID BIAXIAL BANANA PHASES: SYMMETRY AT WORK P. E. Cladis,1 Helmut R. Brand2 and Harald Pleiner3 1. The macro- #12;P. E. Cladis, H. R. Brand and H. Pleiner Page 2 of 10 10/13/99 8:12 AM scopic expression a right-handed helix, then, -qo describes a left-handed one. As the mirror image of a right-hand is a left

Cladis, Patricia E.

439

E-Print Network 3.0 - automated on-line solid-phase Sample Search...  

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

7 SPECIALREPORTSPECIALREPORT96-1696-16 Development of an Analytical Summary: .R. Berg (1992c) Automation and opti- mization of solid-phase microextraction. Analyti- cal...

440

A Metrics for Meeting Quality on a Software Requirement Acquisition Phase  

Science Journals Connector (OSTI)

Requirement analysis of software is an important phase on software development. In practice, stakeholders discuss software requirements with system engineers on meetings. Quality of meetings influences quality of...

Noriko Hanakawa; Masaki Obana

2012-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "development phase phase" 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

Compact, Light-Weight, Single-Phase, Liquid-Cooled Cold Plate  

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

Future 4 RelevanceObjectives * Overall Objective - Develop and demonstrate inverter plastic heat exchanger based on forced convective single-phase jets in conjunction with...

442

PHASE BEHAVIOR OF LIGHT GASES IN HYDROCARBON AND AQUEOUS SOLVENTS  

SciTech Connect (OSTI)

Under previous support from the Department of Energy, an experimental facility has been established and operated to measure valuable vapor-liquid equilibrium data for systems of interest in the production and processing of coal fluids. To facilitate the development and testing of models for prediction of the phase behavior for such systems, we have acquired substantial amounts of data on the equilibrium phase compositions for binary mixtures of heavy hydrocarbon solvents with a variety of supercritical solutes, including hydrogen, methane, ethane, carbon monoxide, and carbon dioxide. The present project focuses on measuring the phase behavior of light gases and water in Fischer-Tropsch (F-T) type solvents at conditions encountered in indirect liquefaction processes and evaluating and developing theoretically-based correlating frameworks to predict the phase behavior of such systems. Specific goals of the proposed work include (a) developing a state-of-the-art experimental facility to permit highly accurate measurements of equilibrium phase compositions (solubilities) of challenging F-T systems, (b) measuring these properties for systematically-selected binary, ternary and molten F-T wax mixtures to provide critically needed input data for correlation development, (c) developing and testing models suitable for describing the phase behavior of such mixtures, and (d) presenting the modeling results in generalized, practical formats suitable for use in process engineering calculations. During the present period, the Park-Gasem-Robinson (PGR) equation of state (EOS) has been modified to improve its volumetric and equilibrium predictions. Specifically, the attractive term of the PGR equation was modified to enhance the flexibility of the model, and a new expression was developed for the temperature dependence of the attractive term in this segment-segment interaction model. The predictive capability of the modified PGR EOS for vapor pressure, and saturated liquid and vapor densities was evaluated for selected normal paraffins, normal alkenes, cyclo-paraffins, light aromatics, argon, carbon dioxide and water. The generalized EOS constants and substance-specific characteristic parameters in the modified PGR EOS were obtained from the pure component vapor pressures, and saturated liquid and vapor molar volumes. The calculated phase properties were compared to those of the Peng-Robinson (PR), the simplified-perturbed-hard-chain theory (SPHCT) and the original PGR equations. Generally, the performance of the proposed EOS was better than the PR, SPHCT and original PGR equations in predicting the pure fluid properties (%AAD of 1.3, 2.8 and 3.7 for vapor pressure, saturated liquid and vapor densities, respectively).

KHALED A.M. GASEM; ROBERT L. ROBINSON, JR.

1998-08-31T23:59:59.000Z

443

Manifest CP violation from Majorana phases  

Science Journals Connector (OSTI)

We hunt for and discuss manifestly CP-violating effects which are mediated by Majorana phases. These phases are present if the standard model neutrinos are Majorana particles. We argue that while Majorana phases do affect the strength of neutrinoless double beta decay (a well known fact), they do so in a way that involves no manifest violation of CP. The conditions for manifestly CP-violating phenomenadifferences between the rates for CP-mirror-image processesare presented, and three examples are discussed: (i) neutrino ? antineutrino oscillation; (ii) rare decays of K and B mesons and their antiparticles; and (iii) the lepton asymmetry generated by the decay of hypothetical very heavy right-handed seesaw neutrinos. We also find that, for the case of degenerate light neutrinos, manifestly CP-violating effects in neutrino ? antineutrino oscillation vanish, although flavor-changing transitions do not. Finally, we comment on leptogenesis with degenerate right-handed neutrinos, and contrast it with the neutrino ? antineutrino oscillation case.

Andr de Gouva; Boris Kayser; Rabindra N. Mohapatra

2003-03-20T23:59:59.000Z

444

"Phase freezeout" in isentropically expanding matter  

E-Print Network [OSTI]

Features of isentropic expansion of warm dense matter (WDM) created by intense energy fluxes (strong shock compression or instant isochoric heating by laser or heavy ions) are under discussion in situation when ($i$) -- thermodynamic trajectory of such expansion crosses binodal of liquid-gas phase transition, and ($ii$) -- expansion within the two-phase region is going along equilibrium branch (not metastable one) of the two-phase mixture isentrope. It is known in the plane case that because of break in the expansion isentrope at binodal point (in $P-V$ plane) i.e. jump of sound velocity in this point, there appears extended zone ("boiling layer") of uniformity in expanding material with constant thermodynamic and kinematic parameters. It corresponds just to the state on this binodal of boiling liquid. The point is that because of self-similarity of such expansion (in plane case) this boiling layer contains finite and fixed part of whole expanding material. This property makes it possible (at least formally) ...

Iosilevskiy, Igor

2014-01-01T23:59:59.000Z

445

Phase separation and coarsening in active matter  

E-Print Network [OSTI]

Active systems, or active matter, are self-driven systems which live, or function, far from equilibrium - a paradigmatic example which we focus on here is provided by a suspension of self-motile particles. Active systems are far from equilibrium because their microscopic constituents constantly consume energy from the environment in order to do work, for instance to propel themselves. The nonequilibrium nature of active matter leads to a variety of non-trivial intriguing phenomena. An important one which has recently been the subject of intense interest among biological and soft matter physicists is that of the so-called "motility-induced phase separation", whereby self-propelled particles accumulate into clusters in the absence of any explicit attractive interactions between them. Here we review the physics of motility-induced phase separation, and discuss this phenomenon within the framework of the classic physics of phase separation and coarsening. We also discuss cases where the coarsening may be arrested, either in theories for bacterial colonies or in experiments. Most of this work will focus on the case of run-and-tumble and active Brownian particles in the absence of solvent-mediated hydrodynamic interactions - we will briefly discuss at the end their role, which is not currently fully understood in this context.

Giuseppe Gonnella; Davide Marenduzzo; Antonio Suma; Adriano Tiribocchi

2015-02-08T23:59:59.000Z

446

Ultracompact Nano-Mechanical Plasmonic Phase Modulators  

E-Print Network [OSTI]

Dielectrics' refractive index limits photonics miniaturization. By coupling light to metal's free electrons, plasmonic devices achieve deeper localization, which scales with the device geometric size. However, when localization approaches the skin depth, energy shifts from the dielectric into the metal, hindering active modulation. Here we propose a nano-electromechanical phase modulation principle exploiting the extraordinarily strong dependence of the phase velocity of metal-insulator-metal(MIM) gap plasmons on dynamically variable gap size. We demonstrate a 23 {\\mu}m long non-resonant modulator having 1.5 {\\pi} rad range with 1.7 dB excess loss at 780 nm. Analysis shows an ultracompact 1 {\\mu}m$^{2}$ footprint {\\pi} rad phase modulator can be realized, more than an order of magnitude smaller than any previously shown. Remarkably, this size reduction is achieved without incurring extra loss, since the nanobeam-plasmon coupling strength increases at a similar rate as the loss. Such small, high density electr...

Dennis, Brian S; Czaplewski, David A; Lopez, Daniel; Blumberg, Girsh; Aksyuk, Vladimir

2014-01-01T23:59:59.000Z

447

Properties of crystalline phase in waste glass  

SciTech Connect (OSTI)

Depending on the operating conditions of the vitrification process of high-level liquid waste, some crystalline phases can be present. The crystalline phase exists as molten salt at glass melting temperature. In this study, the chemical and physical properties of the crystalline phase were determined. Two samples rich in Mo and a sample rich in Re were examined. One of the samples rich in Mo was obtained from simulated waste solution and glass beads in a middle scale melter, while two other samples were made from mixed reagents. The chemical forms of the constituents were determined by XRD and SEM-EDX. When Mo is dominant, the crystal is mainly composed of molybdates of Na, Li, Ba and Ca, Na{sub 2}SO{sub 4} and CsReO{sub 4}. When Re is dominant, (Na{sub x}Cs{sub 1-x})ReO{sub 4} and NaLiMoO{sub 4} are added. The characteristic temperature and the heat of transition were determined by differential scanning calorimetry. The density of the molten salt at high temperature was measured from buoyancy. The density of the molten salt is larger than that of molten glass, and increases with Re content. (authors)

Usami, T.; Uruga, K.; Tsukada, T. [Central Research Institute of Electric Power Industry, Komae-shi, Tokyo 201-8511 (Japan); Miura, Y.; Komamine, S.; Ochi, E. [Japan Nuclear Fuel Limited, Rokkasho-mura, Aomori 039-3212 (Japan)

2013-07-01T23:59:59.000Z

448

A swollen phase observed between the liquid-crystalline phase and the interdigitated phase induced by pressure and/or adding ethanol in DPPC aqueous solution  

E-Print Network [OSTI]

A swollen phase, in which the mean repeat distance of lipid bilayers is larger than the other phases, is found between the liquid-crystalline phase and the interdigitated gel phase in DPPC aqueous solution. Temperature, pressure and ethanol concentration dependences of the structure were investigated by small-angle neutron scattering, and a bending rigidity of lipid bilayers was by neutron spin echo. The nature of the swollen phase is similar to the anomalous swelling reported previously. However, the temperature dependence of the mean repeat distance and the bending rigidity of lipid bilayers are different. This phase could be a precursor to the interdigitated gel phase induced by pressure and/or adding ethanol.

H. Seto; M. Hishida; H. Nobutou; N. L. Yamada; M. Nagao; T. Takeda

2006-02-21T23:59:59.000Z

449

Phase II: Performance Evaluation of Permeable Reactive Barriers and  

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

Phase II: Performance Evaluation of Permeable Reactive Barriers and Phase II: Performance Evaluation of Permeable Reactive Barriers and Potential for Rejuvenation by Chemical Flushing Phase II: Performance Evaluation of Permeable Reactive Barriers and Potential for Rejuvenation by Chemical Flushing Final Report Phase II: Performance Evaluation of Permeable Reactive Barriers and Potential for Rejuvenation by Chemical Flushing U. S. Environmental Protection Agency Region 8 Support January 2004 Phase II: Performance Evaluation of Permeable Reactive Barriers and Potential for Rejuvenation by Chemical Flushing More Documents & Publications Final Report Phase II: Performance Evaluation of Permeable Reactive Barriers and Potential for Rejuvenation by Chemical Flushing Rejuvenating Permeable Reactive Barriers by Chemical Flushing

450

Final Report Phase II: Performance Evaluation of Permeable Reactive  

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

Final Report Phase II: Performance Evaluation of Permeable Reactive Final Report Phase II: Performance Evaluation of Permeable Reactive Barriers and Potential for Rejuvenation by Chemical Flushing Final Report Phase II: Performance Evaluation of Permeable Reactive Barriers and Potential for Rejuvenation by Chemical Flushing Final Report Phase II: Performance Evaluation of Permeable Reactive Barriers and Potential for Rejuvenation by Chemical Flushing Final Report Phase II: Performance Evaluation of Permeable Reactive Barriers and Potential for Rejuvenation by Chemical Flushing More Documents & Publications Phase II: Performance Evaluation of Permeable Reactive Barriers and Potential for Rejuvenation by Chemical Flushing Rejuvenating Permeable Reactive Barriers by Chemical Flushing Final Report - Rejuvenating Permeable Reactive Barriers by Chemical

451

Final Report Phase II: Performance Evaluation of Permeable Reactive  

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

Final Report Phase II: Performance Evaluation of Permeable Reactive Final Report Phase II: Performance Evaluation of Permeable Reactive Barriers and Potential for Rejuvenation by Chemical Flushing Final Report Phase II: Performance Evaluation of Permeable Reactive Barriers and Potential for Rejuvenation by Chemical Flushing Final Report Phase II: Performance Evaluation of Permeable Reactive Barriers and Potential for Rejuvenation by Chemical Flushing Final Report Phase II: Performance Evaluation of Permeable Reactive Barriers and Potential for Rejuvenation by Chemical Flushing More Documents & Publications Phase II: Performance Evaluation of Permeable Reactive Barriers and Potential for Rejuvenation by Chemical Flushing Final Report - Rejuvenating Permeable Reactive Barriers by Chemical Flushing, U.S. Environmental Protection Agency Region 8 Support

452

Phase separation and charge-ordered phases of the d=3 Falicov-Kimball model at nonzero temperature: Temperature-density-chemical potential global phase diagram from renormalization-group theory  

E-Print Network [OSTI]

The global phase diagram of the spinless Falicov-Kimball model in d=3 spatial dimensions is obtained by renormalization-group theory. This global phase diagram exhibits five distinct phases. Four of these phases are ...

Sariyer, Ozan S.

453

Suspect Counterfeit Items Criteria Review and Approach Document , Phase 1 - Management - Developed By NNSA/Nevada Site Office Facility Representative Division  

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

Suspect/Counterfeit Items Suspect/Counterfeit Items Criteria Review and Approach Document (CRAD) NNSA/Nevada Site Office Facility Representative Division Phase 1 - Management Performance Objective: Management should have a formal system under Quality Assurance with adequate controls defined and implemented to identify and preclude Suspect/Counterfeit Items (S/CI) from being introduced into safety systems and applications that create potential hazards. CRITERIA: Management should have a formal system of controls in place for assurance that all items procured meet the requirements for their intended use. Management should have a system of mechanisms to continuously maintain current, accurate, updated information on SC/Is and associated suppliers using all available sources. Management should have a training program with detailed records that

454

Effect of lattice anharmonicity in the structural phase transformation of Laves phase HfV2 alloy: A first-principles investigation  

SciTech Connect (OSTI)

First-principles theory was developed to study the structural phase transformations in the Laves phase HfV2 alloy. We explored the energy landscape and established the role of lattice anharmonicity underlying the structural phase transitions. Our approach is based on a phenomenological Landau theory for the structural phase transition and a mean-field approximation for the free energy. First-principles calculations were utilized to obtain the distortion energy as a function of relevant deformations, and to deduce parameters for constructing the free energy. Our result for the phase transition temperature of HfV2 is in good agreement with experiment. We find that the high-temperature cubic C15 phase is stabilized by the effect of lattice anharmonicity. The theory also predicts an anomalous increase in shear modulus with increasing temperature for systems where the anharmonicity is pronounced.

Krcmar, Maja [Grand Valley State University (GVSU), Michigan] [Grand Valley State University (GVSU), Michigan; Fu, Chong Long [ORNL] [ORNL

2013-01-01T23:59:59.000Z

455

Quantum phase transitions in the interacting boson model  

E-Print Network [OSTI]

This review is focused on various properties of quantum phase transitions (QPTs) in the Interacting Boson Model (IBM) of nuclear structure. The model in its infinite-size limit exhibits shape-phase transitions between spherical, deformed prolate, and deformed oblate forms of the ground state. Finite-size precursors of such behavior are verified by robust variations of nuclear properties (nuclear masses, excitation energies, transition probabilities for low lying levels) across the chart of nuclides. Simultaneously, the model serves as a theoretical laboratory for studying diverse general features of QPTs in interacting many-body systems, which differ in many respects from lattice models of solid-state physics. We outline the most important fields of the present interest: (a) The coexistence of first- and second-order phase transitions supports studies related to the microscopic origin of the QPT phenomena. (b) The competing quantum phases are characterized by specific dynamical symmetries and novel symmetry related approaches are developed to describe also the transitional dynamical domains. (c) In some parameter regions, the QPT-like behavior can be ascribed also to individual excited states, which is linked to the thermodynamic and classical descriptions of the system. (d) The model and its phase structure can be extended in many directions: by separating proton and neutron excitations, considering odd-fermion degrees of freedom or different particle-hole configurations, by including other types of bosons, higher order interactions, and by imposing external rotation. All these aspects of IBM phase transitions are relevant in the interpretation of experimental data and important for a fundamental understanding of the QPT phenomenon.

Pavel Cejnar; Jan Jolie

2008-07-22T23:59:59.000Z

456

Laser and Electrical Current Induced Phase Transformation of...  

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

Current Induced Phase Transformation of In2Se3 Semiconductor thin film on Si(111) . Laser and Electrical Current Induced Phase Transformation of In2Se3 Semiconductor thin film...

457

Design of reflective phase compensator filters for telecommunications  

Science Journals Connector (OSTI)

Reflective phase compensator (RPC) filters provide a solution to the phase-dispersion problem of narrow bandpass (NBP) filters when the data rate is 40 Gbits/s or greater. By use of an...

Noe, Tony D

2002-01-01T23:59:59.000Z

458

Round-Robin Test of Paraffin Phase-Change Material  

Science Journals Connector (OSTI)

A round-robin test between three institutes was performed on a paraffin phase-change material (PCM) in the context of the German quality association for phase-change materials. The aim of the quality association ...

S. Vidi; H. Mehling; F. Hemberger; Th. Haussmann

2014-10-01T23:59:59.000Z

459

Spectroscopic Studies of the Phase Transition in Ammonia Borane...  

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

Studies of the Phase Transition in Ammonia Borane: Raman spectroscopy of single crystal NH3BH3 as a function of Spectroscopic Studies of the Phase Transition in Ammonia Borane:...

460

An economical single to three phase converter for induction motors  

E-Print Network [OSTI]

There are several different types of single to three phase converters for induction motors available today. However, many of the presently available phase converters suffer from disadvantages such as high cost or low performance. An economical...

Di Zerega, Philp Van Uytandaele

2012-06-07T23:59:59.000Z

Note: This page contains sample records for the topic "development phase phase" 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

Influence of Geometrical Factors on Phase Contrast Fiber Images  

Science Journals Connector (OSTI)

X-ray field phase differences caused by an object can induce edge enhancement in a radiological image. Phase contrast effects have been interpreted using a model based on x-ray Fresnel diffraction. The depende...

Margarita Chevalier; Lorena Chanes; Eduardo Guibelalde

2010-01-01T23:59:59.000Z

462

The Western Wind and Solar Integration Study Phase 2  

Office of Energy Efficiency and Renewable Energy (EERE)

Greg Brinkman will present the results of the Western Wind and Solar Integration Study (WWSIS), Phase 2. This study, which follows the first phase of WWSIS, focuses on potential emissions and wear...

463

Phasing Out an Inefficient Venture Capital Tax Credit  

Science Journals Connector (OSTI)

In 2005, the Government of Ontario, Canada, announced the phase out of the Labour Sponsored Venture Capital Corporation (LSVCC) tax credit, which will become effective in 2011. ... related to the phasing out of t...

Douglas Cumming; Sofia Johan

2010-09-01T23:59:59.000Z

464

Kinetic and Performance Studies of the Regeneration Phase of...  

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

Studies of the Regeneration Phase of Model PtRhBa NOx Traps for Design and Optimization Kinetic and Performance Studies of the Regeneration Phase of Model PtRhBa NOx...

465

Pilot Demonstration of Phased Retrofits in Florida Homes (Fact...  

Energy Savers [EERE]

200year per house-Phase I 800year per house-Phase II In this project, the Florida Solar Energy Center and Florida Power & Light are combining energy research and utility...

466

Computation of the one-dimensional unwrapped phase  

E-Print Network [OSTI]

In this thesis, the computation of the unwrapped phase of the discrete-time Fourier transform (DTFT) of a one-dimensional finite-length signal is explored. The phase of the DTFT is not unique, and may contain integer ...

Karam, Zahi Nadim

2006-01-01T23:59:59.000Z

467

Diffraction phase microscopy: monitoring nanoscale dynamics in materials science [Invited  

Science Journals Connector (OSTI)

Quantitative phase imaging (QPI) utilizes the fact that the phase of an imaging field is much more sensitive than its amplitude. As fields from the source interact with the specimen,...

Edwards, Chris; Zhou, Renjie; Hwang, Suk-Won; McKeown, Steven J; Wang, Kaiyuan; Bhaduri, Basanta; Ganti, Raman; Yunker, Peter J; Yodh, Arjun G; Rogers, John A; Goddard, Lynford L; Popescu, Gabriel

2014-01-01T23:59:59.000Z

468

Phase Behavior and Solid State Chemistry of Olivines | Department...  

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

Phase Behavior and Solid State Chemistry of Olivines Phase Behavior and Solid State Chemistry of Olivines Presentation from the U.S. DOE Office of Vehicle Technologies "Mega" Merit...

469

Intuitive explanation of the phase anomaly of focused light beams  

Science Journals Connector (OSTI)

An intuitive argument is presented for the phase anomaly, that is, the 180 phase shift of a light wave in passing through a focus. The treatment is based on the geometrical...

Boyd, Robert W

1980-01-01T23:59:59.000Z

470

Triangularly phase-modulated optical fiber ring resonator sensor  

Science Journals Connector (OSTI)

An optical fiber ring resonatory sensor system has been demonstrated by applying a triangular phase modulation signal to a fiber loop. The dynamic range for detection of optical phase...

Chien, Pie-Yau; Pan, Ci-Ling

1992-01-01T23:59:59.000Z

471

Phase 6.X Process | National Nuclear Security Administration  

National Nuclear Security Administration (NNSA)

Phase 6.X Process | National Nuclear Security Administration Phase 6.X Process | National Nuclear Security Administration Our Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure Continuing Management Reform Countering Nuclear Terrorism About Us Our Programs Our History Who We Are Our Leadership Our Locations Budget Our Operations Media Room Congressional Testimony Fact Sheets Newsletters Press Releases Speeches Events Social Media Video Gallery Photo Gallery NNSA Archive Federal Employment Apply for Our Jobs Our Jobs Working at NNSA Blog Phase 6.X Process Home > Our Mission > Managing the Stockpile > Nuclear Weapons Life Cycle > Phase 6.X Process Phase 6.X Process The Phase 6.x Process is based on the original Joint Nuclear Weapons Life Cycle Process, which includes Phases 1 through 7 and covers all phases of a

472

Exotic phases and quantum criticality in gapless correlated electron systems  

E-Print Network [OSTI]

In this thesis, I theoretically studied exotic phases of matter than arise due to strong interactions between electrons in three different scenarios. Firstly, at a stripe melting phase transition, which may be relevant for ...

Mross, David Fabian

2013-01-01T23:59:59.000Z

473

NERSC Edison Phase I Hours Used Report  

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

Edison Phase I Hours Used Edison Phase I Hours Used Edison Phase I Hours Used Edison Usage Chart Edison Usage Chart Date Hours Used (in millions) Percent of Maximum Possible (24 hours/day) 06/23/2013 0.226 88.6 06/22/2013 0.239 93.9 06/21/2013 0.248 97.1 06/20/2013 0.240 94.0 06/19/2013 0.233 91.3 06/18/2013 0.245 96.0 06/17/2013 0.251 98.4 06/16/2013 0.243 95.3 06/15/2013 0.245 95.9 06/14/2013 0.246 96.5 06/13/2013 0.240 94.1 06/12/2013 0.128 50.4 06/11/2013 0.215 84.5 06/10/2013 0.225 88.4 06/09/2013 0.228 89.6 06/08/2013 0.225 88.3 06/07/2013 0.121 47.5 06/06/2013 0.223 87.4 06/05/2013 0.250 98.0 06/04/2013 0.234 91.6 06/03/2013 0.218 85.5 06/02/2013 0.246 96.4 06/01/2013 0.230 90.0 05/31/2013 0.215 84.5 05/30/2013 0.212 83.1 05/29/2013 0.223 87.3 05/28/2013 0.237 93.0 05/27/2013 0.226 88.5 05/26/2013 0.229 89.9

474

Transuranic (TRU) Waste Phase I Retrieval Plan  

SciTech Connect (OSTI)

Phase I retrieval of post-1970 TRU wastes from burial ground 218-W-4C can be done in a safe, efficient, and cost-effective manner. Initiating TRU retrieval by retrieving uncovered drums from Trenches 1, 20, and 29, will allow retrieval to begin under the current SWBG safety authorization basis. The retrieval of buried drums from Trenches 1, 4, 20, and 29, which will require excavation, will commence once the uncovered drum are retrieved. This phased approach allows safety analysis for drum venting and drum module excavation to be completed and approved before the excavation proceeds. In addition, the lessons learned and the operational experience gained from the retrieval of uncovered drums can be applied to the more complicated retrieval of the buried drums. Precedents that have been set at SRS and LANL to perform retrieval without a trench cover, in the open air, should be followed. Open-air retrieval will result in significant cost savings over the original plans for Phase I retrieval (Project W-113). Based on LANL and SRS experience, open-air retrieval will have no adverse impacts to the environment or to the health and safety of workers or the public. Assaying the waste in the SWBG using a mobile assay system, will result in additional cost savings. It is expected that up to 50% of the suspect-TRU wastes will assay as LLW, allowing those waste to remain disposed of in the SWBG. Further processing, with its associated costs, will only occur to the portion of the waste that is verified to be TRU. Retrieval should be done, to the extent possible, under the current SWBG safety authorization basis as a normal part of SWBG operations. The use of existing personnel and existing procedures should be optimized. By working retrieval campaigns, typically during the slow months, it is easier to coordinate the availability of necessary operations personnel, and it is easier to coordinate the availability of a mobile assay vendor.

MCDONALD, K.M.

1999-08-27T23:59:59.000Z

475

Speckle from phase-ordering systems  

Science Journals Connector (OSTI)

The statistical properties of coherent radiation scattered from phase-ordering materials are studied in detail using large-scale computer simulations and analytic arguments. Specifically, we consider a two-dimensional model with a nonconserved, scalar order parameter (model A), quenched through an order-disorder transition into the two-phase regime. For such systems it is well established that the standard scaling hypothesis applies, consequently, the average scattering intensity at wave vector k and time ? is proportional to a scaling function which depends only on a rescaled time, t?|k|2?. We find that the simulated intensities are exponentially distributed, and the time-dependent average is well approximated using a scaling function due to Ohta, Jasnow, and Kawasaki. Considering fluctuations around the average behavior, we find that the covariance of the scattering intensity for a single wave vector at two different times is proportional to a scaling function with natural variables ?t=|t1-t2| and t=(t1+t2)/2. In the asymptotic large-t limit this scaling function depends only on z=?t/t1/2. For small values of z, the scaling function is quadratic, corresponding to highly persistent behavior of the intensity fluctuations. We empirically establish that the intensity covariance (for k?0) equals the square of the spatial Fourier transform of the two-time, two-point correlation function of the order parameter. This connection allows sensitive testing, either experimental or numerical, of existing theories for two-time correlations in systems undergoing order-disorder phase transitions. Comparison between theoretical scaling functions and our numerical results requires no adjustable parameters.

Gregory Brown; Per Arne Rikvold; Mark Sutton; Martin Grant

1997-12-01T23:59:59.000Z

476

Quark Phase Transition Parameters and $?$-Meson Field in RMF Theory  

E-Print Network [OSTI]

The deconfinement phase transition from hadronic matter to quark matter in the interior of compact stars is investigated. The hadronic phase is described in the framework of relativistic mean-field (RMF) theory, when also the scalar- isovector $\\delta$-meson effective field is taken into account. To describe a quark phase the MIT bag model is used. The changes of the mixed phase threshold parameters caused by the presence of $\\delta$-meson field are investigated.

G. B. Alaverdyan

2009-07-23T23:59:59.000Z

477

SBIR and STTR: Topics, FY 2015 Phase I Release 2  

Office of Energy Efficiency and Renewable Energy (EERE)

Small Business Innovation Research (SBIR) and Small Business Technology Transfer (STTR) Programs: Topics, FY 2015, Phase I, Release 2.

478

Three-phase fluid flow in porous media  

SciTech Connect (OSTI)

In the regions of two-phase flow, with a third phase stationary, the third phase plays an important role in the resulting relative permeability relationships. Wettability has an extremely significant effect on the permeability and flow behavior of the system. This report presents a review of the literature on three-phase relative permeability, a suggested unsteady-state method for finite-difference calculation procedure.

Donaldson, E.C.; Kayser, M.B.

1981-04-01T23:59:59.000Z

479

Comment on "Dynamics of Weak First Order Phase Transitions"  

E-Print Network [OSTI]

We comment on an earlier paper of M. Gleiser, regarding mechanisms of first-order phase transitions.

G. Harris; G. Jungman

1995-11-08T23:59:59.000Z

480

Evolution of fields in a second order phase transition  

Science Journals Connector (OSTI)

We analyze the evolution of scalar and gauge fields during a second order phase transition using a Langevin equation approach. We show that topological defects formed during the phase transition are stable to thermal fluctuations. Our method allows the field evolution to be followed throughout the phase transition, for both expanding and nonexpanding universes. The results verify the Kibble mechanism for defect formation during phase transitions.

Adrian Martin and Anne-Christine Davis

1995-09-15T23:59:59.000Z

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