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1

LCA Harmonization | Open Energy Information  

Open Energy Info (EERE)

LCA Harmonization LCA Harmonization Jump to: navigation, search Tool Summary LAUNCH TOOL Name: LCA Harmonization Agency/Company /Organization: NREL Sector: Energy Focus Area: Greenhouse Gas Phase: Evaluate Options, Prepare a Plan Resource Type: Online calculator User Interface: Website Website: en.openei.org/apps/LCA/ Web Application Link: en.openei.org/apps/LCA/ Cost: Free OpenEI Keyword(s): Featured References: Background and Reflections on the Life Cycle Assessment Harmonization Project[1] National Renewable Energy Laboratory[2] The LCA Harmonization project systematically reviewed estimates of life cycle GHG emissions from electricity generation technologies published between 1970 and 2010. This application (app) allows for customized visualization of summary statistics and the underlying published estimates

2

NREL: Energy Analysis: Life Cycle Assessment Harmonization  

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

Life Cycle Assessment Harmonization Life Cycle Assessment Harmonization Life cycle assessment (LCA) harmonization helps lenders, utility executives, and lawmakers get the best, most precise information on greenhouse gas emissions from various sources of energy. LCA has been used to estimate and compare GHG emissions from utility-scale power systems for three decades, often with considerable variability in results. Harmonization provides more exact estimates of greenhouse-gas emissions for renewable and conventional electricity generation technologies, clarifying inconsistent and conflicting estimates in the published literature and reducing uncertainty. Highlights of Recent Studies Chart that compares published and harmonized lifecycle greenhouse gas emissions. For help reading this chart, please contact the webmaster.

3

Harmon, Illinois: Energy Resources | Open Energy Information  

Open Energy Info (EERE)

Harmon, Illinois: Energy Resources Harmon, Illinois: Energy Resources Jump to: navigation, search Equivalent URI DBpedia Coordinates 41.719689°, -89.556564° 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":41.719689,"lon":-89.556564,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

4

NREL: Energy Analysis - Life Cycle Assessment Harmonization  

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

Life Cycle Assessment Harmonization Life Cycle Assessment Harmonization Life Cycle Greenhouse Gas Emissions from Electricity Generation (Fact Sheet) Cover of the Life Cycle Greenhouse Gas Emissions from Electricity Generation factsheet Download the Fact Sheet The U.S. Department of Energy enlisted NREL to review and "harmonize" life cycle assessments (LCA) of electricity generation technologies. Hundreds of assessments have been published, often with considerable variability in results. These variations in approach, while usually legitimate, hamper comparison across studies and pooling of published results. Learn more about life cycle assessments of energy technologies. By harmonizing this data, NREL seeks to reduce the uncertainty around estimates for environmental impacts of renewables and increase the value of

5

Systematic investigation of resonance-induced single-harmonic enhancement in the extreme-ultraviolet range  

SciTech Connect

We demonstrate the intensity enhancement of single harmonics in high-order harmonic generation from laser plasma. We identified several targets (In, Sn, Sb, Cr, and Mn) that demonstrate resonance-induced enhancement of single harmonic, that are spectrally close to ionic transitions with strong oscillator strengths. We optimized and obtained enhancements of the 13th, 17th, 21st, 29th, and 33rd harmonics from the above targets, by varying the chirp of the 800 nm wavelength femtosecond laser. We also observe harmonic enhancement by using frequency-doubled pump laser (400 nm wavelength). For Mn plasma pumped by the 400 nm wavelength laser, the maximum order of the enhanced harmonic observed was the 17th order ({lambda}=23.5 nm), which corresponds to the highest photon energy (52.9 eV) reported for an enhanced single harmonic.

Ganeev, R. A. [Institut National de la Recherche Scientifique, Energie, Materiaux et Telecommunications, 1650 Lionel-Boulet, Varennes, Quebec J3X 1S2 (Canada); Scientific Association Akadempribor, Academy of Sciences of Uzbekistan, Akademgorodok, Tashkent 700125 (Uzbekistan); Bom, L. B. Elouga; Kieffer, J.-C.; Ozaki, T. [Institut National de la Recherche Scientifique, Energie, Materiaux et Telecommunications, 1650 Lionel-Boulet, Varennes, Quebec J3X 1S2 (Canada)

2007-06-15T23:59:59.000Z

6

Harmonized Emissions Analysis Tool (HEAT) | Open Energy Information  

Open Energy Info (EERE)

Harmonized Emissions Analysis Tool (HEAT) Harmonized Emissions Analysis Tool (HEAT) Jump to: navigation, search Tool Summary Name: Harmonized Emissions Analysis Tool (HEAT) Agency/Company /Organization: Local Governments for Sustainability Sector: Energy, Land Topics: Co-benefits assessment, - Health, GHG inventory, Implementation, Pathways analysis Resource Type: Software/modeling tools User Interface: Website Complexity/Ease of Use: Moderate Website: www.environmenttools.co.uk/directory/tool/name/harmonized-emissions-an Cost: Free Harmonized Emissions Analysis Tool (HEAT) Screenshot References: ICLEI-HEAT[1] Related Tools Energy Forecasting Framework and Emissions Consensus Tool (EFFECT) Prospective Outlook on Long-Term Energy Systems (POLES) ICCT Roadmap Model ... further results Find Another Tool

7

Harmonization of Energy Generation Life Cycle Assessments (LCA...  

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

Harmonization of Energy Generation Life Cycle Assessments (LCA) FY2010 LCA Milestone Report November 2010 Ethan Warner, Garvin Heath, and Patrick O'Donoughue Management Report...

8

Harmonizing Global Metrics for Data Center Energy Efficiency, February 2,  

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

Harmonizing Global Metrics for Data Center Energy Efficiency, Harmonizing Global Metrics for Data Center Energy Efficiency, February 2, 2010 Secondary menu About us Press room Contact Us Portfolio Manager Login Facility owners and managers Existing buildings Commercial new construction Industrial energy management Small business Service providers Service and product providers Verify applications for ENERGY STAR certification Design commercial buildings Energy efficiency program administrators Commercial and industrial program sponsors Associations State and local governments Federal agencies Tools and resources Training In This Section Campaigns Commercial building design Communications resources Energy management guidance Financial resources Portfolio Manager Products and purchasing Recognition Research and reports Service and product provider (SPP) resources

9

Harmonization of Wireless Dimming Lighting Control | Department of Energy  

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

Harmonization of Wireless Dimming Lighting Harmonization of Wireless Dimming Lighting Control Harmonization of Wireless Dimming Lighting Control The U.S. Department of Energy (DOE) is currently conducting research into the harmonization of ZigBee, BACnet-or building automation and control network-and DALI-or digital addressable lighting interface-systems in wireless dimming lighting controls. Four proposed modules will enable "plug-and-play" capabilities for all DALI-compatible controls and BACnet-compatible systems. Project Description This project seeks to develop "plug-and-play" capabilities for lighting as an integrated component of a whole-building control system. Verified Energy, LLC, attempts to demonstrate the benefits of implementing wireless control in dimming applications using plug-and-play principles.

10

Harmon Electric Assn Inc | Open Energy Information  

Open Energy Info (EERE)

Harmon Electric Assn Inc Harmon Electric Assn Inc Place Oklahoma Utility Id 8183 Utility Location Yes Ownership C NERC Location SPP NERC SPP Yes Activity Distribution Yes References EIA Form EIA-861 Final Data File for 2010 - File1_a[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Utility Rate Schedules Grid-background.png 100 Watt HPS Lighting 175 Watt MVL Lighting Co-Generation Rider Commercial Commercial, Single-Phase Commercial Commercial, Three-Phase Commercial Controllable Irrigation, 101HP or more Commercial Controllable Irrigation, 10HP or Less Commercial Controllable Irrigation, 11 to 25 HP Commercial Controllable Irrigation, 26 to 75 HP Commercial Controllable Irrigation, 76 to 100 HP Commercial

11

Front Range Energy LLC | Open Energy Information  

Open Energy Info (EERE)

Energy LLC Energy LLC Jump to: navigation, search Logo: Front Range Energy LLC Name Front Range Energy LLC Address 31375 Great Western Dr Place Windsor, Colorado Zip 80550 Sector Biofuels Product Ethanol producer Website http://www.frontrangeenergy.co Coordinates 40.4605154°, -104.8565272° 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":40.4605154,"lon":-104.8565272,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

12

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

13

Rangely, Colorado: Energy Resources | Open Energy Information  

Open Energy Info (EERE)

Rangely, Colorado: Energy Resources Rangely, Colorado: Energy Resources Jump to: navigation, search Equivalent URI DBpedia Coordinates 40.0874759°, -108.8048292° 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":40.0874759,"lon":-108.8048292,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

14

Quantum Energy Teleportation with a Linear Harmonic Chain  

E-Print Network (OSTI)

A protocol of quantum energy teleportation is proposed for a one-dimensional harmonic chain. A coherent-state POVM measurement is performed to coupled oscillators of the chain in the ground state accompanied by energy infusion to the system. This measurement consumes a part of ground state entanglement. Depending on the measurement result, a displacement operation is performed on a distant oscillator accompanied by energy extraction from the zero-point fluctuation of the oscillator. We find that the amount of consumed entanglement is bounded from below by a positive value that is proportional to the amount of teleported energy.

Yasusada Nambu; Masahiro Hotta

2010-07-14T23:59:59.000Z

15

Quantum Energy Teleportation with a Linear Harmonic Chain  

E-Print Network (OSTI)

A protocol of quantum energy teleportation is proposed for a one-dimensional harmonic chain. A coherent-state POVM measurement is performed to coupled oscillators of the chain in the ground state accompanied by energy infusion to the system. This measurement consumes a part of ground state entanglement. Depending on the measurement result, a displacement operation is performed on a distant oscillator accompanied by energy extraction from the zero-point fluctuation of the oscillator. We find that the amount of consumed entanglement is bounded from below by a positive value that is proportional to the amount of teleported energy.

Nambu, Yasusada

2010-01-01T23:59:59.000Z

16

Range Fuels | Open Energy Information  

Open Energy Info (EERE)

Fuels Fuels Jump to: navigation, search Logo: Range Fuels Name Range Fuels Address 11101 W. 120th Avenue Place Broomfield, Colorado Zip 80021 Sector Biomass Product Uses a thermochemical process to turn biomass into synthetic gas and then fuel Website http://www.rangefuels.com/ Coordinates 39.915572°, -105.122053° 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":39.915572,"lon":-105.122053,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

17

Energy cost and optimal entanglement production in harmonic chains  

Science Journals Connector (OSTI)

We investigate nonequilibrium entanglement generation in a chain of harmonic oscillators with time-dependent linear coupling. We use optimal control theory to determine the coupling modulation that leads to maximum logarithmic negativity for a pair of opposite oscillators, and show that it corresponds to a synchronization of the eigenmodes of the chain. We further analytically relate the maximum attainable entanglement to the irreversible work done to produce it. We find that the energy cost of optimal entanglement production scales exponentially with the amount of entanglement.

Fernando Galve and Eric Lutz

2009-03-23T23:59:59.000Z

18

Rate-Harmonized Scheduling for Saving Energy Anthony Rowe Karthik Lakshmanan Haifeng Zhu Ragunathan (Raj) Rajkumar  

E-Print Network (OSTI)

Rate-Harmonized Scheduling for Saving Energy Anthony Rowe Karthik Lakshmanan Haifeng Zhu Ragunathan mode, substantially more energy savings can be obtained but it requires a significant amount of time such that processor idle times are lumped together. We next introduce the Energy-Saving Rate-Harmonized Scheduler

Rowe, Anthony

19

Topology optimization of piezoelectric energy harvesting devices considering static and harmonic dynamic loads  

Science Journals Connector (OSTI)

A topology optimization (TO) procedure is developed to design optimal layouts for piezoelectric energy harvesting devices (EHDs) by considering the effect of static and harmonic dynamic mechanical loads. To determine the optimal material distributions ... Keywords: Energy harvesting device, Harmonic load, Piezoelectric material with penalization, Static load, Structural optimization, Topology optimization

Jin Yee Noh; Gil Ho Yoon

2012-11-01T23:59:59.000Z

20

Long range Energy Alternatives Planning (LEAP) System | Open Energy  

Open Energy Info (EERE)

Long range Energy Alternatives Planning (LEAP) System Long range Energy Alternatives Planning (LEAP) System (Redirected from LEAP) Jump to: navigation, search Tool Summary Name: Long range Energy Alternatives Planning System Agency/Company /Organization: Stockholm Environment Institute Sector: Climate, Energy Focus Area: Non-renewable Energy, Agriculture, Biomass, - Anaerobic Digestion, - Biofuels, - Biomass Combustion, - Biomass Gasification, - Biomass Pyrolysis, - Landfill Gas, - Waste to Energy, Buildings, Economic Development, Energy Efficiency, - Central Plant, Food Supply, Forestry, Geothermal, Goods and Materials, - Embodied Energy, - Materials, Greenhouse Gas, Ground Source Heat Pumps, Hydrogen, Industry, - Industrial Processes, Offsets and Certificates, People and Policy, Solar, - Concentrating Solar Power, - Solar Hot Water, - Solar PV, - Solar Ventilation Preheat, Transportation, Water Conservation, Water Power, Wind

Note: This page contains sample records for the topic "harmonics energy range" 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

Long range Energy Alternatives Planning (LEAP) System | Open Energy  

Open Energy Info (EERE)

Long range Energy Alternatives Planning (LEAP) System Long range Energy Alternatives Planning (LEAP) System Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Long range Energy Alternatives Planning System Agency/Company /Organization: Stockholm Environment Institute Sector: Climate, Energy Focus Area: Non-renewable Energy, Agriculture, Biomass, - Anaerobic Digestion, - Biofuels, - Biomass Combustion, - Biomass Gasification, - Biomass Pyrolysis, - Landfill Gas, - Waste to Energy, Buildings, Economic Development, Energy Efficiency, - Central Plant, Food Supply, Forestry, Geothermal, Goods and Materials, - Embodied Energy, - Materials, Greenhouse Gas, Ground Source Heat Pumps, Hydrogen, Industry, - Industrial Processes, Offsets and Certificates, People and Policy, Solar, - Concentrating Solar Power, - Solar Hot Water, - Solar PV, - Solar Ventilation Preheat, Transportation, Water Conservation, Water Power, Wind

22

Energy transport by acoustic modes of harmonic lattices  

E-Print Network (OSTI)

We study the large scale evolution of a scalar lattice excitation which satisfies a discrete wave-equation in three dimensions. We assume that the dispersion relation associated to the elastic coupling constants of the wave-equation is acoustic, i.e., it has a singularity of the type |k| near the vanishing wave vector, k=0. To derive equations that describe the macroscopic energy transport we introduce the Wigner transform and change variables so that the spatial and temporal scales are of the order of epsilon. In the continuum limit, which is achieved by sending the parameter epsilon to 0, the Wigner transform disintegrates into three different limit objects: the transform of the weak limit, the H-measure and the Wigner-measure. We demonstrate that these three limit objects satisfy a set of decoupled transport equations: a wave-equation for the weak limit of the rescaled initial data, a dispersive transport equation for the regular limiting Wigner measure, and a geometric optics transport equation for the H-measure limit of the initial data concentrating to k=0. A simple consequence of our result is the complete characterization of energy transport in harmonic lattices with acoustic dispersion relations.

Lisa Harris; Jani Lukkarinen; Stefan Teufel; Florian Theil

2006-11-21T23:59:59.000Z

23

Casimir Friction Force and Energy Dissipation for Moving Harmonic Oscillators  

E-Print Network (OSTI)

The Casimir friction problem for a pair of dielectric particles in relative motion is analyzed, utilizing a microscopic model in which we start from statistical mechanics for harmonically oscillating particles at finite temperature moving nonrelativistically with constant velocity. The use of statistical mechanics in this context has in our opinion some definite advantages, in comparison with the more conventional quantum electrodynamic description of media that involves the use of a refractive index. The statistical-mechanical description is physical and direct, and the oscillator model, in spite of its simplicity, is nevertheless able to elucidate the essentials of the Casimir friction. As is known, there are diverging opinions about this kind of friction in the literature. Our treatment elaborates upon, and extends, an earlier theory presented by us back in 1992. There we found a finite friction force at any finite temperature, whereas at zero temperature the model led to a zero force. As an additional development in the present paper we evaluate the energy dissipation making use of an exponential cutoff truncating the relative motion of the oscillators. For the dissipation we also establish a general expression that is not limited to the simple oscillator model.

Johan S. Hye; Iver Brevik

2010-01-14T23:59:59.000Z

24

Property:Wave Period Range(s) | Open Energy Information  

Open Energy Info (EERE)

Wave Period Range(s) Wave Period Range(s) Jump to: navigation, search Property Name Wave Period Range(s) Property Type String Pages using the property "Wave Period Range(s)" Showing 25 pages using this property. (previous 25) (next 25) 1 1.5-ft Wave Flume Facility + 10.0 + 10-ft Wave Flume Facility + 0.0 + 11-ft Wave Flume Facility + 10.0 + 2 2-ft Flume Facility + 10.0 + 3 3-ft Wave Flume Facility + 10.0 + 5 5-ft Wave Flume Facility + 10.0 + 6 6-ft Wave Flume Facility + 10.0 + A Alden Large Flume + 2.1 + Alden Small Flume + 0.0 + Alden Wave Basin + 1.0 + B Breakwater Research Facility + 0.0 + C Carderock Maneuvering & Seakeeping Basin + 0.0 + Carderock Tow Tank 2 + 0.0 + Carderock Tow Tank 3 + 0.0 + Chase Tow Tank + 3.1 + Coastal Harbors Modeling Facility + 2.3 +

25

NREL: Energy Analysis - Life Cycle Assessment Harmonization Results...  

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

in a special supplemental issue of the Journal of Industrial Ecology on Meta-Analysis of LCA, as well as, the harmonization of unconventional gas published in the Proceedings of...

26

Wind LCA Harmonization (Fact Sheet), NREL (National Renewable Energy Laboratory)  

SciTech Connect

NREL recently led the Life Cycle Assessment (LCA) Harmonization Project, a study that provides more exact estimates of GHG emissions for renewable and conventional generation, clarifying inconsistent and conflicting estimates in the published literature, and reducing uncertainty. This involved a systematic review and harmonization of life cycle assessment (LCA) literature of utility-scale wind power systems in order to determine the causes of life cycle greenhouse gases (GHG) emissions and, where possible, reduce variability in GHG estimates.

Not Available

2013-06-01T23:59:59.000Z

27

Measurement of long-range pseudorapidity correlations and azimuthal harmonics in sNN=5.02TeV proton-lead collisions with the ATLAS detector  

Science Journals Connector (OSTI)

Measurements of two-particle correlation functions and the first five azimuthal harmonics, v1 to v5, are presented, using 28 nb?1 of p+Pb collisions at a nucleon-nucleon center-of-mass energy of sNN=5.02TeV measured with the ATLAS detector at the LHC. Significant long-range ridgelike correlations are observed for pairs with small relative azimuthal angle (|??|2?/3) over the transverse momentum range 0.44 GeV. The v2(pT), v3(pT), and v4(pT) are compared to the vn coefficients in Pb+Pb collisions at sNN=2.76TeV with similar event multiplicities. Reasonable agreement is observed after accounting for the difference in the average pT of particles produced in the two collision systems.

G. Aad et al. (ATLAS Collaboration)

2014-10-09T23:59:59.000Z

28

Range Fuels Biorefinery Groundbreaking | Department of Energy  

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

Range Fuels Biorefinery Groundbreaking Range Fuels Biorefinery Groundbreaking Range Fuels Biorefinery Groundbreaking November 6, 2007 - 5:00pm Addthis Remarks as Prepared for Secretary Bodman Thank you. And let me say how much it means to have my old friend Vinodh here to introduce me. You are a true pioneer in this industry. I also want to thank Mitch for asking me to be here. It's good to see Tom Dorr from the U.S. Department of Agriculture, our partner in so much of the federal government's biomass research and development and deployment efforts. Gov. Perdue, as always, it's great to be in Georgia and to see the progress occurring here under your leadership. I want to reaffirm our support for governors and state legislators who exhibit the kind of leadership you've shown in developing America's new energy future.

29

Range of High-Energy Interactions  

Science Journals Connector (OSTI)

The range of high-energy nucleon-nucleon interactions is examined in a simple single inelastic channel model which consists of the production of two spinless isobars. An almost transparent, purely absorbing optical approximation is made, in which case both the inelastic and elastic angular distributions are sensitive to the variation of the absorption coefficient ?l with angular momentum l. Unlike the case of the strong absorber, the inelastic and elastic interactions are described by different effective ranges. Two examples are given, one in which the inelastic channel has an angular distribution characteristic of a one-pion exchange process and the second in which it is characteristic of a "vacuum Regge pole" exchange.

Freda Salzman

1963-08-01T23:59:59.000Z

30

ENERGY CONCENTRATION FOR 2-DIMENSIONAL RADIALLY SYMMETRIC EQUIVARIANT HARMONIC MAP HEAT FLOWS  

E-Print Network (OSTI)

flows. Adapting Struwe's energy method we first establish a finite bubble tree result with a discrete, energy method, energy quanta, bubble tree, bubbling off, single bubble, intersection-comparison. AMSENERGY CONCENTRATION FOR 2-DIMENSIONAL RADIALLY SYMMETRIC EQUIVARIANT HARMONIC MAP HEAT FLOWS

Hulshof, Joost

31

Long-Range Energy Alternatives Planning System (LEAP) | Open Energy  

Open Energy Info (EERE)

form form View source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Page Edit with form History Facebook icon Twitter icon » Long-Range Energy Alternatives Planning System (LEAP) Jump to: navigation, search LEDSGP green logo.png FIND MORE DIA TOOLS This tool is part of the Development Impacts Assessment (DIA) Toolkit from the LEDS Global Partnership. Tool Summary LAUNCH TOOL Name: Long-Range Energy Alternatives Planning System (LEAP) Agency/Company /Organization: Stockholm Environmental Institute Sector: Climate, Energy Topics: Potentials & Scenarios Complexity/Ease of Use: Moderate Website: www.energycommunity.org/default.asp?action=47 Cost: Free Equivalent URI: cleanenergysolutions.org/content/long-range-energy-alternatives-planni

32

Harmonizing Global Metrics for Data Center Energy Efficiency (February 2, 2010)  

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

Harmonizing Global Metrics for Data Center Energy Efficiency Harmonizing Global Metrics for Data Center Energy Efficiency The United States of America, European Union and Japan Reach Agreement on Guiding Principles for Data Center Energy Efficiency Metrics February 2, 2010 As business demands and energy costs for data centers rise, owners and operators have focused on the energy efficiency of the data center as a whole, frequently using energy efficiency metrics. However, the metrics are not always applied clearly and consistently at a global level. To address these inconsistencies, a group of global leaders met on February 2, 2010 to agree on data center energy efficiency measurements, metrics, and reporting conventions. Organizations represented were the U.S. Department of Energy's Save Now and Federal Energy Management Programs,

33

Generalized energy equipartition in harmonic oscillators driven by active baths  

E-Print Network (OSTI)

We study experimentally and numerically the dynamics of colloidal beads confined by a harmonic potential in a bath of swimming E. coli bacteria. The resulting dynamics is well approximated by a Langevin equation for an overdamped oscillator driven by the combination of a white thermal noise and an exponentially correlated active noise. This scenario leads to a simple generalization of the equipartition theorem resulting in the coexistence of two different effective temperatures that govern dynamics along the flat and the curved directions in the potential landscape.

Claudio Maggi; Matteo Paoluzzi; Nicola Pellicciotta; Alessia Lepore; Luca Angelani; Roberto Di Leonardo

2014-11-06T23:59:59.000Z

34

On the energy range relation for fast muons in rock  

Science Journals Connector (OSTI)

A discussion is given of the best estimate of various types of energy loss; the energy-range relation for muons in rock and water is then evaluated....?6 g?1 cm2 fractional nuclear energy losses respectively; w...

M. Mand; L. Ronchi

1952-01-01T23:59:59.000Z

35

Ion Cyclotron Range of Frequency Heating of a Deuterium-Tritium Plasma via the Second-Harmonic Tritium Cyclotron Resonance  

Science Journals Connector (OSTI)

Experiments have been performed on the TFTR to study rf wave heating of a D-T plasma by way of the second-harmonic tritium cyclotron resonance. The addition of tritium ions to a deuterium plasma allows for absorption of the rf waves at the tritium cyclotron harmonics and by electron damping of a mode converted ion Bernstein wave. Competing mechanisms include direct electron damping and damping at the fundamental cyclotron resonance of deuterium, ? particles, and 3He ions. The contribution of each is estimated from a series of plasma discharges where various plasma parameters are varied. The majority of the rf power is found to damp on the tritium ions.

J. R. Wilson; C. E. Bush; D. Darrow; J. C. Hosea; E. F. Jaeger; R. Majeski; M. Murakami; C. K. Phillips; J. H. Rogers; G. Schilling; J. E. Stevens; E. Synakowski; G. Taylor

1995-07-31T23:59:59.000Z

36

Power factor and harmonic distortion characteristics of energy efficient lamps  

SciTech Connect

This paper evaluates the performance of a new class of lamps which are generally classified as the energy-saving lamps. It is shown that, when compared with the incandescent lamps, these lamps indeed consume less real power and have higher relative illumination. However, the energy-saving lamps operate at a low power factor and produce current distortion which are much higher than the distortion produced by the traditional incandescent lamps.

Etezadi-Amoli, M.; Florence, T.

1989-07-01T23:59:59.000Z

37

Azimuthal harmonics of color fields in a high energy nucleus  

E-Print Network (OSTI)

Recent experimental results have revealed a surprisingly rich structure of multiparticle azimuthal correlations in high energy proton-nucleus collisions. Final state collective effects can be responsible for many of the observed effects, but it has recently been argued that a part of these correlations are present already in the wavefunctions of the colliding particles. We evaluate the momentum space 2-particle cumulant azimuthal anisotropy coefficients v_n{2}, n=2,3,4 from fundamental representation Wilson line distributions describing the high energy nucleus. These would correspond to the flow coefficients in very forward proton nucleus scattering. We find significant differences beteen Wilson lines from the MV model and from JIMWLK evolution. The magnitude and transverse momentum dependence of the v_n{2} values suggest that the fluctuations present in the initial fields are a significant contribution to the observed anisotropies.

Lappi, T

2015-01-01T23:59:59.000Z

38

Transient energy excitation in shortcuts to adiabaticity for the time-dependent harmonic oscillator  

SciTech Connect

We study for the time-dependent harmonic oscillator the transient energy excitation in speed-up processes ('shortcuts to adiabaticity') designed to reproduce the initial populations at some predetermined final frequency and time. We provide lower bounds and examples. Implications for the limits imposed to the process times and for the principle of unattainability of the absolute zero, in a single expansion or in quantum refrigerator cycles, are drawn.

Chen Xi [Departamento de Quimica Fisica, UPV-EHU, Apartado 644, E-48080 Bilbao (Spain); Department of Physics, Shanghai University, 200444 Shanghai (China); Muga, J. G. [Departamento de Quimica Fisica, UPV-EHU, Apartado 644, E-48080 Bilbao (Spain); Max Planck Institute for the Physics of Complex Systems, Noethnitzer Strasse 38, D-01187 Dresden (Germany)

2010-11-15T23:59:59.000Z

39

Decomposition of harmonic and jet contributions to particle-pair correlations at ultrarelativistic energies  

SciTech Connect

Methodology is presented for analysis of two-particle azimuthal angle correlation functions obtained in collisions at ultrarelativistic energies. We show that harmonic and di-jet contributions to these correlation functions can be reliably decomposed by two techniques to give an accurate measurement of the jet-pair distribution. Results from detailed Monte Carlo simulations are used to demonstrate the efficacy of these techniques in the study of possible modifications to jet topologies in heavy ion reactions.

Ajitanand, N.N.; Alexander, J.M.; Chung, P.; Holzmann, W.G.; Issah, M.; Lacey, Roy A.; Shevel, A.; Taranenko, A.; Danielewicz, P. [Department of Chemistry, State University of New York at Stony Brook, Stony Brook, New York 11794 (United States); Michigan State University, East Lansing, Michigan 48824-1321 (United States)

2005-07-01T23:59:59.000Z

40

Decomposition of Harmonic and Jet Contributions to Particle-pair Correlations at Ultra-relativistic Energies  

E-Print Network (OSTI)

Methodology is presented for analysis of two-particle azimuthal angle correlation functions obtained in collisions at ultra-relativistic energies. We show that harmonic and di-jet contributions to these correlation functions can be reliably decomposed by two techniques to give an accurate measurement of the jet-pair distribution. Results from detailed Monte Carlo simulations are used to demonstrate the efficacy of these techniques in the study of possible modifications to jet topologies in heavy ion reactions.

N. N. Ajitanand; J. M. Alexander; P. Chung; W. G. Holzmann; M. Issah; Roy A. Lacey; A. Shevel; A. Taranenko; P. Danielewicz

2005-01-25T23:59:59.000Z

Note: This page contains sample records for the topic "harmonics energy range" 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

Range-energy relation for ultra-relativistic muons  

Science Journals Connector (OSTI)

A range-energy relation for ultra-relativistic muons is calculated: 1) extending the calculation...4...GeV; 2) emploing the Murota-Ueda-Tanaka theory, for the pair production energy loss; 3) utilizing for the nuc...

C. Castagnoli; A. De Maeco; R. Scrimaglio

1964-01-01T23:59:59.000Z

42

Wave Functions and Energy Terms of the SCHRdinger Equation with Two-Center Coulomb Plus Harmonic Oscillator Potential  

E-Print Network (OSTI)

Schr\\"odinger equation for two center Coulomb plus harmonic oscillator potential is solved by the method of ethalon equation at large intercenter separations. Asymptotical expansions for energy term and wave function are obtained in the analytical form.

D. Matrasulov

1998-04-17T23:59:59.000Z

43

Zero energy correction method for non-Hermitian Harmonic oscillator with simultaneous transformation of co-ordinate and momentum and  

E-Print Network (OSTI)

We propose zero energy correction method for non-Hermiition Harmonic oscillator under simultaneous transformation of co-ordinate $(x \\rightarrow \\frac{(x+ i\\lambda p)}{\\sqrt{(1+\\beta \\lambda)}}$ and momentum $(p \\rightarrow \\frac{(p+ i\\beta x)}{\\sqrt{(1+\\beta \\lambda)}}$ for getting energy eigenvalue in place of extending the idea of gaugelike transformation proposed earlier in momentum transformation $(p \\rightarrow p+i\\beta x)$ by Z.Ahmed [Phys.Lett A 294,287 (2002)]. Further energy of non-Hermitian Harmonic oscillator remains the same as that of Harmonic oscillator. PACS: 03. 65 Db Key words.Non-Hermitian Harmonic oscillator, Perturbation theory,Energy level.

Biswanath Rath; P. Mallick

2015-01-25T23:59:59.000Z

44

Little Green Codes: Energy-Efficient Short-Range Communication  

E-Print Network (OSTI)

Little Green Codes: Energy-Efficient Short-Range Communication Pulkit Grover and Anant Sahai, the optimizing rate for our bounds on the energy consumption of green codes converges to 1 in the context of AWGN energy as green codes. Classical information theoretic approach finds the minimum transmission energy

California at Irvine, University of

45

Calculation of ground state energy of harmonically confined two dipolar fermions  

E-Print Network (OSTI)

We calculate the ground state energies of a system of two dipolar fermions trapped in a harmonic oscillator potential. The dipoles are assumed to be aligned parallel to each other. We perform the calculations of ground state energy as a function of strength of interaction between two fermions by employing variational method with Hylleraas-like explicitly correlated wave function. Furthermore, we perform calculations of ground state energy within Hartree-Fock approximation and the magnitude of correlation energy is estimated by subtracting these results from the corresponding wave function based results. We also carry out calculations of ground state energies within the realm of density functional theory by using recently reported expressions for exchange and correlation energies under local density approximation. By comparing correlated wave function based results with those obtained using density functional theory approach we examine the role of fermion-fermion correlation and assess the accuracy of local de...

Das, Amit K

2014-01-01T23:59:59.000Z

46

Periodic Discrete Energy for Long-Range Potentials  

E-Print Network (OSTI)

We consider periodic energy problems in Euclidean space with a special emphasis on long-range potentials that cannot be defined through the usual infinite sum. One of our main results builds on more recent developments of Ewald summation to define the periodic energy corresponding to a large class of long-range potentials. Two particularly interesting examples are the logarithmic potential and the Riesz potential when the Riesz parameter is smaller than the dimension of the space. For these examples, we use analytic continuation methods to provide concise formulas for the periodic kernel in terms of the Epstein Hurwitz Zeta function. We apply our energy definition to deduce several properties of the minimal energy including the asymptotic order of growth and the distribution of points in energy minimizing configurations as the number of points becomes large. We conclude with some detailed calculations in the case of one dimension, which shows the utility of this approach.

D. P. Hardin; E. B. Saff; Brian Simanek

2014-12-11T23:59:59.000Z

47

Property:OpenEI/Tool/CostRange | Open Energy Information  

Open Energy Info (EERE)

CostRange CostRange Jump to: navigation, search This is a property of type String. Subproperties This property has the following 1 subproperty: O Property:OpenEI/Tool/CostType Pages using the property "OpenEI/Tool/CostRange" Showing 25 pages using this property. (previous 25) (next 25) 2 2008 Solar Technologies Market Report + Free + 2011 APTA Public Transportation Fact Book + Free + A A Case for Climate Neutrality: Case Studies on Moving Towards a Low Carbon Economy + Free + A New Scheme for the Promotion of Renewable Energies in Developing Countries: The Renewable Energy Regulated Purchase Tariff + Free + ADB-Methods and Tools for Energy Demand Projection + Free + AGI-32 + Paid + APEC-Alternative Transport Fuels: Implementation Guidelines + Free + APFED-Good Practice Database + Free +

48

Range Design Criteria - June 4, 2012 | Department of Energy  

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

Range Design Criteria - June 4, 2012 Range Design Criteria - June 4, 2012 Range Design Criteria - June 4, 2012 June 4, 2012 This document contains the currently-approved firearms "Range Design Criteria" referred to on DOE O 473.3, Protection Program Operations PURPOSE. This document contains design criteria for U.S. Department of Energy (DOE) live-fire ranges for use in planning new facilities and major rehabilitation of existing facilities. This document will be approved and maintained by the Office of Security, Office of Health, Safety and Security (HSS) as a stand-alone document on the HSS website: http://www.hss.doe.gov/SecPolicy/pfs.html. PLANNING FACTORS. All applicable local, State, Federal, U.S. Environmental Protection Agency, Occupational Health and Safety Administration (OSHA),

49

Ytterbium-doped fibre laser tunable in the range 1017 - 1040 nm with second-harmonic generation  

SciTech Connect

A cladding-pumped ytterbium-doped fibre laser has been tuned to shorter emission wavelengths (from 1040 to 1017 nm). The laser output power obtained has been compared to calculation results. We have studied frequency doubling of the laser in a KTiOPO{sub 4} (KTP) crystal with type II phase matching in the XY plane and demonstrated wavelength tuning in the range 510 - 520 nm. (lasers)

Dontsova, E I; Kablukov, S I; Babin, Sergei A

2013-05-31T23:59:59.000Z

50

Long-range coherent energy transport in Photosystem II  

E-Print Network (OSTI)

We simulate the long-range inter-complex electronic energy transfer in Photosystem II -- from the antenna complex, via a core complex, to the reaction center -- using a non-Markovian (ZOFE) quantum master equation description that allows us to quantify the electronic coherence involved in the energy transfer. We identify the pathways of the energy transfer in the network of coupled chromophores, using a description based on excitation probability currents. We investigate how the energy transfer depends on the initial excitation -- localized, coherent initial excitation versus delocalized, incoherent initial excitation -- and find that the energy transfer is remarkably robust with respect to such strong variations of the initial condition. To explore the importance of vibrationally enhanced transfer and to address the question of optimization in the system parameters, we vary the strength of the coupling between the electronic and the vibrational degrees of freedom. We find that the original parameters lie in ...

Roden, Jan J J; Whaley, K Birgitta

2015-01-01T23:59:59.000Z

51

High-Energy, High-Efficiency Second-Harmonic Generation from a Nd-Doped Laser with High-Quality CsB3O5Crystal  

Science Journals Connector (OSTI)

Frequency doubling of high-energy Nd-doped laser emission yields harmonically converted laser energy (532-nm) of 1.2-J with 60 % conversion efficiency using a high optical quality...

Suzuki, Masayuki; Kiriyama, Hiromitsu; Nakai, Yoshiki; Okada, Hajime; Daito, Izuru; Bolton, Paul R; Daido, Hiroyuki; Kondo, Kiminori; Kawanishi, Shunichi; Kagebayashi, Yoshio; Yokota, Toshio

52

Edge Plasma Heating via Cyclotron Harmonic Interaction  

Science Journals Connector (OSTI)

Energy absorption in the edge region via cyclotron harmonic interaction during plasma heating with the ion-cyclotron range of frequencies is examined. It is shown that the electric field ripple caused by the closely spaced Faraday-shield conductors gives rise to large effective perpendicular wave numbers, resulting in strong cyclotron harmonic damping. For the parameters of the ASDEX tokamak, carbon impurity ions with Z=5 and an initial perpendicular energy of 1 eV could be accelerated to energies in excess of 1 keV in less than 10 ?s (corresponding to about 100 cyclotron orbits).

Satish Puri

1988-08-22T23:59:59.000Z

53

Experimental Analysis of a Piezoelectric Energy Harvesting System for Harmonic, Random, and Sine on Random Vibration  

SciTech Connect

Formal journal article Experimental analysis of a piezoelectric energy harvesting system for harmonic, random, and sine on random vibration Abstract: Harvesting power with a piezoelectric vibration powered generator using a full-wave rectifier conditioning circuit is experimentally compared for varying sinusoidal, random and sine on random (SOR) input vibration scenarios. Additionally, the implications of source vibration characteristics on harvester design are discussed. Studies in vibration harvesting have yielded numerous alternatives for harvesting electrical energy from vibrations but piezoceramics arose as the most compact, energy dense means of energy transduction. The rise in popularity of harvesting energy from ambient vibrations has made piezoelectric generators commercially available. Much of the available literature focuses on maximizing harvested power through nonlinear processing circuits that require accurate knowledge of generator internal mechanical and electrical characteristics and idealization of the input vibration source, which cannot be assumed in general application. In this manuscript, variations in source vibration and load resistance are explored for a commercially available piezoelectric generator. We characterize the source vibration by its acceleration response for repeatability and transcription to general application. The results agree with numerical and theoretical predictions for in previous literature that load optimal resistance varies with transducer natural frequency and source type, and the findings demonstrate that significant gains are seen with lower tuned transducer natural frequencies for similar source amplitudes. Going beyond idealized steady state sinusoidal and simplified random vibration input, SOR testing allows for more accurate representation of real world ambient vibration. It is shown that characteristic interactions from more complex vibrational sources significantly alter power generation and power processing requirements by increasing harvested power, shifting optimal conditioning impedance, inducing significant voltage supply fluctuations and ultimately rendering idealized sinusoidal and random analyses insufficient.

Cryns, Jackson W.; Hatchell, Brian K.; Santiago-Rojas, Emiliano; Silvers, Kurt L.

2013-07-01T23:59:59.000Z

54

Time-varying long range dependence in energy futures markets  

Science Journals Connector (OSTI)

Abstract This study aims to investigate the presence of long-range dependence in energy futures markets. Using a daily dataset covering from 1990 to 2013 (which includes crucial events for energy markets such as invasion of Iraq and global financial crisis of 2008), we estimate time-varying generalized Hurst exponents of several energy futures contracts with different times to maturity using a rolling window approach. Results reveal that efficiency of energy futures markets is clearly time-varying and changes drastically over the sample period. For futures contracts with 14months to maturities, crude oil and gasoline are found to be more efficient compared to others. On the other hand, for contracts with 59months to maturities, crude oil and natural gas futures are more efficient. For almost every different month to maturity, heating oil and gas oil futures are found to be the least efficient markets. Moreover in general, the efficiency of energy futures markets is found to be decreasing dramatically when time to maturity is increasing. Several implications are discussed.

Ahmet Sensoy; Erk Hacihasanoglu

2014-01-01T23:59:59.000Z

55

Measurement of long-range pseudorapidity correlations and azimuthal harmonics in $\\sqrt{s_{\\mathrm{NN}}}$ = 5.02 TeV proton-lead collisions with the ATLAS detector  

E-Print Network (OSTI)

Measurements of two-particle correlation functions and the first five azimuthal harmonics, $v_1$ to $v_5$, are presented, using 28 $\\mathrm{nb}^{-1}$ of $p$+Pb collisions at a nucleon-nucleon center-of-mass energy of $\\sqrt{s_{\\mathrm{NN}}}=5.02$ TeV measured with the ATLAS detector at the LHC. Significant long-range ``ridge-like'' correlations are observed for pairs with small relative azimuthal angle ($|\\Delta\\phi|2\\pi/3$) over the transverse momentum range $0.44$ GeV. The $v_2(p_{\\rm T})$, $v_3(p_{\\rm T})$ and $v_4(p_{\\rm T})$ are compared to the $v_n$ coefficients in Pb+Pb collisions at $\\sqrt{s_{\\mathrm{NN}}} =2.76$ TeV with similar event multiplicities. Reasonable agreement is observed after accounting for the difference in the average $p_{\\rm T}$ of particles produced in the two collision systems.

ATLAS Collaboration

2014-09-05T23:59:59.000Z

56

Energy Impacts of Effective Range Hood Use for all U.S. Residential Cooking  

E-Print Network (OSTI)

impact on source energy and cost based on state specifichouse average annual energy and cost savings, relative toof household source energy and cost of range hood use in

Logue, Jennifer M

2014-01-01T23:59:59.000Z

57

A Global and Long-Range Picture of Energy Developments  

Science Journals Connector (OSTI)

...in primary energy demand. It Table 3...scenarios, primary energy by region, 1975...terawatt-year per year). High...000 25,000 GDP per capita (S 1975) Fig. 3. Energy intensiveness...growth of energy demand, at least in...

Wolf Hfele

1980-07-04T23:59:59.000Z

58

Intense multimicrojoule high-order harmonics generated from neutral atoms of In{sub 2}O{sub 3} nanoparticles  

SciTech Connect

We studied high-order harmonic generation from plasma that contains an abundance of indium oxide nanoparticles. We found that harmonics from nanoparticle-containing plasma are considerably more intense than from plasma produced on the In{sub 2}O{sub 3} bulk target, with high-order harmonic energy ranging from 6 {mu}J (for the ninth harmonic) to 1 {mu}J (for the 17th harmonic) in the former case. The harmonic cutoff from nanoparticles was at the 21st order, which is lower than that observed using indium oxide solid target. By comparing the harmonic spectra obtained from solid and nanoparticle indium oxide targets, we concluded that intense harmonics in the latter case are dominantly generated from neutral atoms of the In{sub 2}O{sub 3} nanoparticles.

Elouga Bom, L. B.; Abdul-Hadi, J.; Vidal, F.; Ozaki, T. [Centre Energie, Materiaux et Telecommunications, Institut National de la Recherche Scientifique, 1650 Lionel-Boulet, Varennes, Quebec J3X 1S2 (Canada); Ganeev, R. A. [Centre Energie, Materiaux et Telecommunications, Institut National de la Recherche Scientifique, 1650 Lionel-Boulet, Varennes, Quebec J3X 1S2 (Canada); Scientific Association Akadempribor, Uzbekistan Academy of Sciences, Akademgorodok, Tashkent 100125 (Uzbekistan)

2009-03-16T23:59:59.000Z

59

A Global and Long-Range Picture of Energy Developments  

Science Journals Connector (OSTI)

...Project Paperfor Renewable Nonconventional Energy Project (U...Northem Africa(Egypt). tProduction...Department of Energy (20) for 1975...desirability of such renewable resources. More...there are the renewable energy sources with...

Wolf Hfele

1980-07-04T23:59:59.000Z

60

A Global and Long-Range Picture of Energy Developments  

Science Journals Connector (OSTI)

...t"Other" includes biogas, geothermal energy, commercial wood use...that remain include bio-mass, geothermal, and wind energy. In the analysis...secondary energy in the case of district heating. The weighted average cost of...

Wolf Hfele

1980-07-04T23:59:59.000Z

Note: This page contains sample records for the topic "harmonics energy range" 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

EM Tackles Cleanup at Tonopah Test Range | Department of Energy  

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

Tackles Cleanup at Tonopah Test Range EM Tackles Cleanup at Tonopah Test Range September 30, 2014 - 12:00pm Addthis Field technicians survey a shaker used in past cleanup...

62

Northwest Basin and Range Geothermal Region | Open Energy Information  

Open Energy Info (EERE)

Northwest Basin and Range Geothermal Region Northwest Basin and Range Geothermal Region Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Northwest Basin and Range Geothermal Region Details Areas (48) Power Plants (8) Projects (15) Techniques (33) The Basin and Range Province in northwestern Nevada and northeastern California is characterized by late Cretaceous - early Cenozoic regional erosion, Oligocene - Miocene volcanism, and subsequent late Miocene extension. Extensional faulting in northwestern Nevada began everywhere at 12 Ma and has continued up to the present. Faulting in the Warner Range in northeastern California can only be constrained to have begun between 14 and 3 Ma, but may represent westward migration of Basin and Range extension during the Pliocene. Compared to the many parts of the Basin and Range in

63

Seismicity of the Coso Range, California | Open Energy Information  

Open Energy Info (EERE)

of the Coso Range, California of the Coso Range, California Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Seismicity of the Coso Range, California Details Activities (1) Areas (1) Regions (0) Abstract: A 16-station seismographic network, approximately 40 km north-south by 30 km east-west, was installed in the Coso Range, California, in September 1975 as part of a geological and geophysical assessment of the geothermal resource potential of range. During the first 2 years of network operations, 4216 local earthquakes (0.5< or =m< or =3.9) defined zones of seismicity that strike radially outward from a Pleistocene rhyolite field located near the center of the Coso Range. Most earthquakes were located in zones showing a general northwest trend across the range.

64

Southern Basin and Range Geothermal Region | Open Energy Information  

Open Energy Info (EERE)

Basin and Range Geothermal Region Basin and Range Geothermal Region Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Southern Basin and Range Geothermal Region Details Areas (0) Power Plants (0) Projects (0) Techniques (0) Map: {{{Name}}} North-south-striking and west-dipping Basin and Range province normal faults form the western edge of the Sierra Madre Occidental plateau in northeastern Sonora. These faults and associated half-grabens extend over a distance of more than 300 km between the San Bernardino basin in the north and the Sahuaripa basin in the south. Active Tectonics of Northeastern Sonora, Mexico (Southern Basin and Range Province) and the 3 May 1887 Mw 7.4 Earthquake [1] References ↑ "Active Tectonics of Northeastern Sonora, Mexico (Southern Basin and Range Province) and the 3 May 1887 Mw 7.4 Earthquake"

65

Nevada Test And Training Range Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Nevada Test And Training Range Geothermal Area Nevada Test And Training Range Geothermal Area (Redirected from Nevada Test And Training Range Area) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Nevada Test And Training Range Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (0) 9 Exploration Activities (5) 10 References Area Overview Geothermal Area Profile Location: Nevada Exploration Region: Northern Basin and Range Geothermal Region GEA Development Phase: 2008 USGS Resource Estimate Mean Reservoir Temp: Estimated Reservoir Volume: Mean Capacity: Click "Edit With Form" above to add content

66

Nevada Test And Training Range Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Page Page Edit with form History Facebook icon Twitter icon » Nevada Test And Training Range Geothermal Area Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Nevada Test And Training Range Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (0) 9 Exploration Activities (5) 10 References Area Overview Geothermal Area Profile Location: Nevada Exploration Region: Northern Basin and Range Geothermal Region GEA Development Phase: 2008 USGS Resource Estimate Mean Reservoir Temp: Estimated Reservoir Volume: Mean Capacity: Click "Edit With Form" above to add content

67

Northern Basin and Range Geothermal Region | Open Energy Information  

Open Energy Info (EERE)

and Range Geothermal Region and Range Geothermal Region Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Northern Basin and Range Geothermal Region Details Areas (34) Power Plants (3) Projects (7) Techniques (33) Map: {{{Name}}} Examination of seismicity and late Quaternary faults in Montana and Idaho north of the Snake River Plain shows a geographic correspondence between high seismicity and 24 faults that have experienced surface rupture during the late Quaternary. The Lewis and Clark Zone delineates the northern boundary of this tectonically active extensional region. Earthquakes greater than magnitude 5.5 and all identified late Quaternary faults are confined to the Montana-Idaho portion of the Basin and Range Province south of the Lewis and Clark Zone. Furthermore, all 12 Holocene faults are

68

Second and Third Harmonic Measurements at the Linac Coherent Light Source  

SciTech Connect

The Linac Coherent Light Source (LCLS) started user commissioning in October of 2009, producing Free Electron Laser (FEL) radiation between 800 eV and 8 keV [1]. The fundamental wavelength of the FEL dominates radiation in the beamlines, but the beam also produces nonnegligible levels of radiation at higher harmonics. The harmonics may be desirable as a source of harder X-rays, but may also contribute backgrounds to user experiments. In this paper we present preliminary measurements of the second and third harmonic content in the FEL. We also measure the photon energy cutoff of the soft X-ray mirrors to determine the extent to which higher harmonics reach the experimental stations. We present preliminary second and third harmonic measurements for LCLS. At low energies (below 1 keV fundamental) we measure less than 0.1% second harmonic content. The second harmonic will be present in the soft X-ray beam line for fundamental photon energies below approximately 1.1 keV. At low and high energies, we measure third harmonic content ranging from 0.5% to 3%, which is consistent with expectations. For both second and third harmonics, experimental work is ongoing. More rigorous analysis of the data will be completed soon.

Ratner, D.; /Stanford U., Phys. Dept.; Brachmann, A.; Decker, F.J.; Ding, Y.; Dowell, D.; Emma, P.; Fisher, A.; Frisch, J.; Gilevich, S.; Huang, Z.; Hering, P.; Iverson, R.; Krzywinski, J.; Loos, H.; Messerschmidt, M.; Nuhn, H.D.; Smith, T.; Turner, J.; Welch, J.; White, W.; Wu, J.; /SLAC

2011-01-03T23:59:59.000Z

69

Ground magnetic survey in the Coso Range, California | Open Energy  

Open Energy Info (EERE)

Ground magnetic survey in the Coso Range, California Ground magnetic survey in the Coso Range, California Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Ground magnetic survey in the Coso Range, California Details Activities (1) Areas (1) Regions (0) Abstract: A ground magnetic study was completed in the Coso volcanic field to investigate faulting and associated hydrothermal alteration patterns. The magnetic intensity contours match general geologic patterns in varying rock types. Hydrothermally altered rocks along intersecting fault zones show up as strong magnetic lows that form a triangular-shaped area. This area is centered in an area of highest heat flow and is a site of concentrated fumarolic activity. In the Coso volcanic field the combination of high heat flow, fumarolic activity, magnetic lows, and hydrothermal

70

Numerical Modeling Of Basin And Range Geothermal Systems | Open Energy  

Open Energy Info (EERE)

Numerical Modeling Of Basin And Range Geothermal Systems Numerical Modeling Of Basin And Range Geothermal Systems Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Numerical Modeling Of Basin And Range Geothermal Systems Details Activities (3) Areas (3) Regions (0) Abstract: Basic qualitative relationships for extensional geothermal systems that include structure, heat input, and permeability distribution have been established using numerical models. Extensional geothermal systems, as described in this paper, rely on deep circulation of groundwater rather than on cooling igneous bodies for heat, and rely on extensional fracture systems to provide permeable upflow paths. A series of steady-state, two-dimensional simulation models is used to evaluate the effect of permeability and structural variations on an idealized, generic

71

Kinematic model for postorogenic Basin and Range extension | Open Energy  

Open Energy Info (EERE)

Kinematic model for postorogenic Basin and Range extension Kinematic model for postorogenic Basin and Range extension Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Kinematic model for postorogenic Basin and Range extension Details Activities (1) Areas (1) Regions (0) Abstract: The Raft River extensional shear zone is exposed in the Albion-Raft River-Grouse Creek metamorphic core complex. Several studies of ductile deformation have shown that it accommodated crustal stretching in Tertiary time during late orogenic collapse of the thickened Cordilleran crust. Progressive deformation that results from mixed pure and simple shear produces a complex strain pattern along the shear zone. The authors propose a numerical kinematic model that relates strain variations in the shear zone to the different amounts of extension between the brittlely

72

China Lake South Range Geothermal Project | Open Energy Information  

Open Energy Info (EERE)

China Lake South Range Geothermal Project China Lake South Range Geothermal Project Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Development Project: China Lake South Range Geothermal Project Project Location Information Coordinates 35.65°, -117.66166666667° 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":35.65,"lon":-117.66166666667,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

73

LCA Harmonization  

Open Energy Info (EERE)

Loading... Loading... About Box & Whisker Scatter Data References Publications Definitions definitions LCA Harmonization The Life Cycle Assessment (LCA) Harmonization project systematically reviewed estimates of life cycle GHG emissions from electricity generation technologies published between 1970 and 2010. LCAs consider emissions from all stages in the life cycle of an electricity generation technology, from component manufacturing, to operation of the generation facility to its decommissioning, and including acquisition, processing and transport of any required fuels. For selected technologies, a meta-analytical procedure called "harmonization" was applied to adjust estimates so that they were methodologically more consistent and therefore more comparable. This

74

Energy Impacts of Effective Range Hood Use for all U.S. Residential Cooking  

E-Print Network (OSTI)

use will impact the energy demand of the U.S. housing stock.potential to reduce the energy demand of venting range hoodin site and source energy demand, and consumer cost for the

Logue, Jennifer M

2014-01-01T23:59:59.000Z

75

Darwin: dose monitoring system applicable to various radiations with wide energy ranges  

Science Journals Connector (OSTI)

......from neutrons, photons and muons with energies from thermal energy to 1 GeV...from neutrons, photons and muons with energy ranges from thermal energy to...from neutrons, photons and muons with energies from thermal energy to 1 GeV......

T. Sato; D. Satoh; A. Endo; Y. Yamaguchi

2007-08-01T23:59:59.000Z

76

Energy Efficiency Standards and Labels in North America: Opportunities for Harmonization  

E-Print Network (OSTI)

and Equipment Energy Efficiency Committee. Available fromE. McMahon. 2001. Energy-Efficiency Labels and Standards: ALloyd. 1999. Review of energy efficiency test standards and

Wiel, Stephen

2008-01-01T23:59:59.000Z

77

Fallon Test Ranges Geothermal Project | Open Energy Information  

Open Energy Info (EERE)

Page Page Edit with form History Facebook icon Twitter icon » Fallon Test Ranges Geothermal Project Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Development Project: Fallon Test Ranges Geothermal Project Project Location Information Coordinates 39.425°, -118.70277777778° 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":39.425,"lon":-118.70277777778,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

78

Green Codes: Energy-Efficient Short-Range Communication  

E-Print Network (OSTI)

A green code attempts to minimize the total energy per-bit required to communicate across a noisy channel. The classical information-theoretic approach neglects the energy expended in processing the data at the encoder and the decoder and only minimizes the energy required for transmissions. Since there is no cost associated with using more degrees of freedom, the traditionally optimal strategy is to communicate at rate zero. In this work, we use our recently proposed model for the power consumed by iterative message passing. Using generalized sphere-packing bounds on the decoding power, we find lower bounds on the total energy consumed in the transmissions and the decoding, allowing for freedom in the choice of the rate. We show that contrary to the classical intuition, the rate for green codes is bounded away from zero for any given error probability. In fact, as the desired bit-error probability goes to zero, the optimizing rate for our bounds converges to 1.

Grover, Pulkit

2008-01-01T23:59:59.000Z

79

A Global and Long-Range Picture of Energy Developments  

Science Journals Connector (OSTI)

...ConvenDeep Oil shale Totaltional offshore Enhanced andand recovery tar...oil and some possibly deep offshore oil. The analysis of region...bio-mass, geothermal, and wind energy. In the analysis that...170 per kilo-watt for gas turbines up to $920 per kilo-watt...

Wolf Hfele

1980-07-04T23:59:59.000Z

80

Energy Impacts of Effective Residential Range Hood Use, LBNL-Page 1 Energy Impacts of Effective Range  

E-Print Network (OSTI)

Introduction Cooking is one of the largest sources of air pollutants in residences (Kamens et al. 1991; Lewis.S. Dept. of Housing and Urban Development, Office of Healthy Homes and Lead Hazard Control through- Page 3 Abstract Range hood use during residential cooking is essential to maintaining good indoor air

Note: This page contains sample records for the topic "harmonics energy range" 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

Range Fuels Inc formerly Kergy Inc | Open Energy Information  

Open Energy Info (EERE)

Inc formerly Kergy Inc Inc formerly Kergy Inc Jump to: navigation, search Name Range Fuels Inc (formerly Kergy Inc) Place Broomfield, Colorado Zip 80021 Sector Biofuels Product A Khosla Ventures-backed company that is developing gasification technology for the production of cellulosic biofuels. Coordinates 39.920863°, -105.070582° 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":39.920863,"lon":-105.070582,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

82

Quantum free-energy differences from nonequilibrium path integrals. II. Convergence properties for the harmonic oscillator  

E-Print Network (OSTI)

Quantum free-energy differences from nonequilibrium path integrals. II. Convergence properties July 2008; published 2 October 2008 Nonequilibrium path-integral methods for computing quantum free-energy with the purpose of establishing the convergence properties of the work distribution and free energy as the number

Schofield, Jeremy

83

Tests of a calorimetric technique for measuring the energy of cosmic ray muons in the TeV energy range  

Science Journals Connector (OSTI)

Previous energy measurements of cosmic ray muons have used magnetic spectrometers to measure the momentum of muons. Measurements using magnets fail for muons in the TeV range because at ultra-high muon energies, ...

A. P. Chikkatur; L. Bugel; A. Alton

1997-06-01T23:59:59.000Z

84

Absolute x-ray energy calibration over a wide energy range using a diffraction-based iterative method  

E-Print Network (OSTI)

Mineral Physics Institute, Stony Brook University, Stony Brook, New York 11794, USA 2 DepartmentAbsolute x-ray energy calibration over a wide energy range using a diffraction-based iterative;REVIEW OF SCIENTIFIC INSTRUMENTS 83, 063901 (2012) Absolute x-ray energy calibration over a wide energy

Duffy, Thomas S.

85

Efficient energy conversion for cubic third-harmonic generation that is phase matched in KTiOPO4  

Science Journals Connector (OSTI)

We demonstrate, for the first time to our knowledge, that efficient third-harmonic generation can be achieved with a cubic contribution much larger than the quadratic processes. An...

Fve, J P; Boulanger, B; Guillien, Y

2000-01-01T23:59:59.000Z

86

High energy factorization in nucleus-nucleus collisions. III. Long range rapidity correlations  

SciTech Connect

We obtain a novel result in QCD for long range rapidity correlations between gluons produced in the collision of saturated high energy hadrons or nuclei. This result, obtained in a high energy factorization framework, provides strong justification for the Glasma flux tube picture of coherent strong color fields. Our formalism can be applied to 'near side ridge' events at the Relativistic Heavy Ion Collider and in future studies of long range rapidity correlations at the LHC.

Gelis, Francois [Theory Division, PH-TH, Case C01600, CERN, CH-1211, Geneva 23 (Switzerland); Institut de Physique Theorique (URA 2306 du CNRS), CEA/DSM/Saclay, Bat. 774, 91191, Gif-sur-Yvette Cedex (France); Lappi, Tuomas [Institut de Physique Theorique (URA 2306 du CNRS), CEA/DSM/Saclay, Bat. 774, 91191, Gif-sur-Yvette Cedex (France); Venugopalan, Raju [Physics Department, Brookhaven National Laboratory, Upton, New York 11973 (United States)

2009-05-01T23:59:59.000Z

87

Harmonizing Above Code Codes  

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

Harmonizing "Above Code" Harmonizing "Above Code" Codes Doug Lewin Executive Director, SPEER 6 Regional Energy Efficiency Organizations SPEER Members Texas grid facing an energy crisis * No new generation coming online * Old, inefficient coal-fired plants going offline * ERCOT CEO Trip Doggett said "We are very concerned about the significant drop in the reserve margin...we will be very tight on capacity next summer and have a repeat of this year's emergency procedures and conservation appeals." Higher codes needed to relieve pressure Building Codes are forcing change * 2012 IECC 30% higher than 2006 IECC * IRC, the "weaker code," will mirror IECC in 2012 * City governments advancing local codes with

88

Casimir Friction Force and Energy Dissipation for Moving Harmonic Oscillators. II  

E-Print Network (OSTI)

This paper is a second in a series devoted to the study of a two-oscillator system in linear relative motion (the first one published as a letter in Europhys. Lett. 91, 60003 (2010)). The main idea behind considering this kind of system is to use it as a simple model for Casimir friction. In the present paper we extend our previous theory so as to obtain the change in the oscillator energy to second order in the perturbation, even though we employ first order perturbation theory only. The results agree with, and confirm, our earlier results obtained via different routes. The friction force is finite at finite temperatures, whereas in the case of two oscillators moving with constant relative velocity the force becomes zero at zero temperature, due to slowly varying coupling.

Johan S. Hye; I. Brevik

2010-09-16T23:59:59.000Z

89

Effective bridge spectral density for long-range biological energy and charge transfer  

E-Print Network (OSTI)

Effective bridge spectral density for long-range biological energy and charge transfer Oliver Ku of intermediate bridge sites in energy and charge transfer processes in molecular aggregates of arbitrary size analysis for a donor­acceptor system coupled through a single bridge molecule are presented. © 1996

Mukamel, Shaul

90

Range and energy-loss of heavy ions by a nuclear track technique  

Science Journals Connector (OSTI)

A simple and fairly accurate nuclear track technique has been described to measure the range and energy-loss rate of any heavy ion in any elemental or complex media. The experimental values of range and energy loss of 16.34 MeV/u 238U ions in nickel and tantalum have been measured by the track technique using CR-39 as track detector. The error in measurement varies from 510%. Measured ranges are compared with the corresponding theoretical values obtained from some commonly used theories and data tables.

K.K. Dwivedi

1991-01-01T23:59:59.000Z

91

Harmonic engine  

DOE Patents (OSTI)

An engine based on a reciprocating piston engine that extracts work from pressurized working fluid. The engine includes a harmonic oscillator inlet valve capable of oscillating at a resonant frequency for controlling the flow of working fluid into of the engine. In particular, the inlet valve includes an inlet valve head and a spring arranged together as a harmonic oscillator so that the inlet valve head is moveable from an unbiased equilibrium position to a biased closed position occluding an inlet. Upon releasing the inlet valve the inlet valve head undergoes a single oscillation past the equilibrium positio to a maximum open position and returns to a biased return position close to the closed position to choke the flow and produce a pressure drop across the inlet valve causing the inlet valve to close. Protrusions carried either by the inlet valve head or piston head are used to bump open the inlet valve from the closed position and initiate the single oscillation of the inlet valve head, and protrusions carried either by the outlet valve head or piston head are used to close the outlet valve ahead of the bump opening of the inlet valve.

Bennett, Charles L.; Sewall, Noel; Boroa, Carl

2014-08-19T23:59:59.000Z

92

Energy Impacts of Effective Range Hood Use for all U.S. Residential Cooking  

SciTech Connect

Range hood use during residential cooking is essential to maintaining good indoor air quality. However, widespread use will impact the energy demand of the U.S. housing stock. This paper describes a modeling study to determine site energy, source energy, and consumer costs for comprehensive range hood use. To estimate the energy impacts for all 113 million homes in the U.S., we extrapolated from the simulation of a representative weighted sample of 50,000 virtual homes developed from the 2009 Residential Energy Consumption Survey database. A physics-based simulation model that considered fan energy, energy to condition additional incoming air, and the effect on home heating and cooling due to exhausting the heat from cooking was applied to each home. Hoods performing at a level common to hoods currently in U.S. homes would require 19?33 TWh [69?120 PJ] of site energy, 31?53 TWh [110-190 PJ] of source energy; and would cost consumers $1.2?2.1 billion (U.S.$2010) annually in the U.S. housing stock. The average household would spend less than $15 annually. Reducing required airflow, e.g. with designs that promote better pollutant capture has more energy saving potential, on average, than improving fan efficiency.

Logue, Jennifer M; Singer, Brett

2014-06-01T23:59:59.000Z

93

Cladding-pumped passive harmonically mode-locked fiber laser  

Science Journals Connector (OSTI)

A passive harmonically mode-locked fiber laser cladding pumped by a broad-area diode-laser array is described. Harmonic mode locking is obtained in a frequency range from 33.3 to 128.6...

Fermann, M E; Minelly, J D

1996-01-01T23:59:59.000Z

94

Air Shower Measurements in the Primary Energy Range from PeV to EeV  

E-Print Network (OSTI)

Recent results of advanced experiments with sophisticated measurements of cosmic rays in the energy range of the so called knee at a few PeV indicate a distinct knee in the energy spectra of light primary cosmic rays and an increasing dominance of heavy ones towards higher energies. This leads to the expectation of knee-like features of the heavy primaries at around 100 PeV. To investigate in detail this energy region several new experiments are or will be devised.

Andreas Haungs

2006-10-23T23:59:59.000Z

95

Cross sections for electron scattering by propane in the low- and intermediate-energy ranges  

SciTech Connect

We present a joint theoretical-experimental study on electron scattering by propane (C{sub 3}H{sub 8}) in the low- and intermediate-energy ranges. Calculated elastic differential, integral, and momentum transfer as well as total (elastic + inelastic) and total absorption cross sections are reported for impact energies ranging from 2 to 500 eV. Also, experimental absolute elastic cross sections are reported in the 40- to 500-eV energy range. A complex optical potential is used to represent the electron-molecule interaction dynamics. A theoretical method based on the single-center-expansion close-coupling framework and corrected by the Pade approximant is used to solve the scattering equations. The experimental angular distributions of the scattered electrons are converted to absolute cross sections using the relative flow technique. The comparison of our calculated with our measured results, as well as with other experimental and theoretical data available in the literature, is encouraging.

Souza, G. L. C. de; Lee, M.-T.; Sanches, I. P.; Rawat, P.; Iga, I.; Santos, A. S. dos; Machado, L. E.; Sugohara, R. T.; Brescansin, L. M.; Homem, M. G. P.; Lucchese, R. R. [Departamento de Quimica, UFSCar, 13565-905 Sao Carlos, SP (Brazil); Departamento de Fisica, UFSCar, 13565-905 Sao Carlos, SP (Brazil); Instituto de Fisica 'Gleb Wataghin', UNICAMP, 13083-970 Campinas, SP (Brazil); Departamento de Fisica, UFSC, 88010-970 Florianopolis, SC (Brazil); Department of Chemistry, Texas A and M University, College Station, Texas 7784-3255 (United States)

2010-07-15T23:59:59.000Z

96

Theoretical modeling for neutron elastic scattering angular distribution in the fast energy range  

SciTech Connect

One of the major issues of neutron scattering modeling in the fast energy range is the contribution of compound elastic and inelastic scattering to the total scattering process. The compound component may become large at very low energies where the angular distribution becomes 90-degree symmetric in the center-of-mass system. Together with the shape elastic component, the elastic scattering gives slightly forward-peaked angular distributions in the fast energy range. This anisotropic angular distribution gives high sensitivities to many important nuclear reactor characteristics, such as criticality and neutron shielding. In this talk we describe how the anisotropic angular distributions are calculated within the statistical model framework, including the case where strongly coupled channels exist, by combining the coupled-channels theory with the Hauser-Feshbach model. This unique capability extension will have significant advantages in understanding the neutron scattering process for deformed nuclei, like uranium or plutonium, on which advanced nuclear energy applications center.

Kawano, Toshihiko [Los Alamos National Laboratory

2010-12-07T23:59:59.000Z

97

Tin City Long Range Radar Station Wind Farm | Open Energy Information  

Open Energy Info (EERE)

Tin City Long Range Radar Station Wind Farm Tin City Long Range Radar Station Wind Farm Jump to: navigation, search Name Tin City Long Range Radar Station Wind Farm Facility Tin City Long Range Radar Station Sector Wind energy Facility Type Community Wind Facility Status In Service Owner Tin City Long Range Radar Station Developer Tanadgusix Corp. Energy Purchaser Tin City Long Range Radar Station Location Nome AK Coordinates 65.559372°, -167.949686° 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":65.559372,"lon":-167.949686,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

98

Particle production models in HETC88 in the energy range 3 to 30 GeV  

SciTech Connect

HETC88 is the latest version of the high-energy transport code HETC that has been used to provide accelerator shield and calorimeter design data for many years. (See Refs. 3, 4, and 5 and the refs. given therein). This version of the code is described and results are compared with experimental data in Ref. 1. The high-energy particle production model in HETC88 is a multi-chain fragmentation model based on the work of J. Ranft and S. Ritter (see Ref. 6 and the refs. given therein). The fragmentation model used in HETC88 is described and compared with experimental data. In HETC88, the fragmentation model is used at energies {ge} 5 GeV, a scaling model is used in energy range 3 to 5 GeV, and the intranuclear cascade model is used at energies {le} 3 GeV. 10 refs., 1 fig.

Alsmiller, R.G. Jr.; Alsmiller, F.S.

1991-01-01T23:59:59.000Z

99

Autonomous Vehicles Have a Wide Range of Possible Energy Impacts (Poster)  

SciTech Connect

This poster presents initial estimates of the net energy impacts of automated vehicles (AVs). Automated vehicle technologies are increasingly recognized as having potential to decrease carbon dioxide emissions and petroleum consumption through mechanisms such as improved efficiency, better routing, lower traffic congestion, and by enabling advanced technologies. However, some effects of AVs could conceivably increase fuel consumption through possible effects such as longer distances traveled, increased use of transportation by underserved groups, and increased travel speeds. The net effect on petroleum use and climate change is still uncertain. To make an aggregate system estimate, we first collect best estimates for the energy impacts of approximately ten effects of AVs. We then use a modified Kaya Identity approach to estimate the range of aggregate effects and avoid double counting. We find that depending on numerous factors, there is a wide range of potential energy impacts. Adoption of automated personal or shared vehicles can lead to significant fuel savings but has potential for backfire.

Brown, A.; Repac, B.; Gonder, J.

2013-07-01T23:59:59.000Z

100

Probing the long range nature of pion emission source at SPS energies  

SciTech Connect

The NA49 experiment at CERN SPS has acquired a huge data set of Pb+Pb events over a broad range of energy and centrality during the last several years. This high statistics data set, coupled with a state-of-the-art analysis technique, allows for the first model-independent extraction and energy scan of 3D emission sources for pion pairs at SPS energies. These 3D pion emission sources provide new insights into the nature of a long-range source previously reported by PHENIX at RHIC. The new results indicate that the pion source function is essentially Gaussian from 20 AGeV to 80 AGeV but it displays significant non-Gaussian tails at 158 AGeV.

Chung, P. [Dept of Chemistry, SUNY Stony Brook, Stony Brook, NY 11794 (United States); Danielewicz, P. [National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, MI. 48824-1321 (United States); Department of Physics and Astronomy, Michigan State University, East Lansing, MI. 48824-1321 (United States)

2006-11-17T23:59:59.000Z

Note: This page contains sample records for the topic "harmonics energy range" 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

Validating plastic scintillation detectors for photon dosimetry in the radiologic energy range  

SciTech Connect

Purpose: Photon dosimetry in the kilovolt (kV) energy range represents a major challenge for diagnostic and interventional radiology and superficial therapy. Plastic scintillation detectors (PSDs) are potentially good candidates for this task. This study proposes a simple way to obtain accurate correction factors to compensate for the response of PSDs to photon energies between 80 and 150 kVp. The performance of PSDs is also investigated to determine their potential usefulness in the diagnostic energy range. Methods: A 1-mm-diameter, 10-mm-long PSD was irradiated by a Therapax SXT 150 unit using five different beam qualities made of tube potentials ranging from 80 to 150 kVp and filtration thickness ranging from 0.8 to 0.2 mmAl + 1.0 mmCu. The light emitted by the detector was collected using an 8-m-long optical fiber and a polychromatic photodiode, which converted the scintillation photons to an electrical current. The PSD response was compared with the reference free air dose rate measured with a calibrated Farmer NE2571 ionization chamber. PSD measurements were corrected using spectra-weighted corrections, accounting for mass energy-absorption coefficient differences between the sensitive volumes of the ionization chamber and the PSD, as suggested by large cavity theory (LCT). Beam spectra were obtained from x-ray simulation software and validated experimentally using a CdTe spectrometer. Correction factors were also obtained using Monte Carlo (MC) simulations. Percent depth dose (PDD) measurements were compensated for beam hardening using the LCT correction method. These PDD measurements were compared with uncorrected PSD data, PDD measurements obtained using Gafchromic films, Monte Carlo simulations, and previous data. Results: For each beam quality used, the authors observed an increase of the energy response with effective energy when no correction was applied to the PSD response. Using the LCT correction, the PSD response was almost energy independent, with a residual 2.1% coefficient of variation (COV) over the 80-150-kVp energy range. Monte Carlo corrections reduced the COV to 1.4% over this energy range. All PDD measurements were in good agreement with one another except for the uncorrected PSD data, in which an over-response was observed with depth (13% at 10 cm with a 100 kVp beam), showing that beam hardening had a non-negligible effect on the PSD response. A correction based on LCT compensated very well for this effect, reducing the over-response to 3%.Conclusion: In the diagnostic energy range, PSDs show high-energy dependence, which can be corrected using spectra-weighted mass energy-absorption coefficients, showing no considerable sign of quenching between these energies. Correction factors obtained by Monte Carlo simulations confirm that the approximations made by LCT corrections are valid. Thus, PSDs could be useful for real-time dosimetry in radiology applications.

Lessard, Francois; Archambault, Louis; Plamondon, Mathieu [Departement de physique, de genie physique et d'optique, Universite Laval, Quebec, Quebec G1K 7P4, Canada and Departement de radio-oncologie, Hotel-Dieu de Quebec, Centre hospitalier universitaire de Quebec, Quebec G1R 2J6 (Canada); Departement de physique, de genie physique et d'optique, Universite Laval, Quebec, Quebec G1K 7P4 (Canada); Departement de radio-oncologie, Hotel-Dieu de Quebec, Centre hospitalier universitaire de Quebec, Quebec G1R 2J6 (Canada) and Department of Radiation Physics, University of Texas MD Anderson Cancer Center, Houston, Texas 77030 (United States); Department of Radiation Physics, University of Texas MD Anderson Cancer Center, Houston, Texas 77030 (United States); Departement de physique, de genie physique et d'optique, Universite Laval, Quebec, Quebec G1K 7P4, Canada and Departement de radio-oncologie, Hotel-Dieu de Quebec, Centre hospitalier universitaire de Quebec, Quebec G1R 2J6 (Canada); and others

2012-09-15T23:59:59.000Z

102

Long-range correlation studies at the SPS energies in MC model with string fusion  

E-Print Network (OSTI)

Studies of the ultrarelativistic collisions of hadrons and nuclei at different centrality and energy enable to explore the QCD phase diagram in a wide range of temperature and baryon density. Long-range correlation studies are considered as a tool, sensitive to the observation of phase transition and the critical point. In the present work, a Monte Carlo model of proton-proton, proton-nucleus, and nucleus-nucleus collisions is applied to heavy and light ion collisions at the cms energy range from a few up to several hundred GeV per nucleon. The model describes the nuclear collisions at the partonic level through interaction of color dipoles and takes into account the effects of string fusion, which can be considered as an alternative to relativistic hydrodynamics way of describing the collective phenomena in heavy-ion collisions. The implementing of both the string fusion and the finite rapidity length of strings allowed to consider the particle production at non-zero baryochemical potential. We calculated the long-range correlation functions and correlation coefficients between multiplicities and transverse momentum at several energies for different colliding systems and obtained predictions for the experiment.

Vladimir Kovalenko; Vladimir Vechernin

2015-02-05T23:59:59.000Z

103

Short-range and long-range order of phyllomanganate nanoparticles determined using high-energy X-ray scattering  

Science Journals Connector (OSTI)

High-energy X-ray scattering data from turbostratic phyllomanganate nanosheets are analyzed in real-space by pair distribution function analysis and in reciprocal space by the Bragg-rod method and the Debye equation. The elastic deformation of the two-dimensional nanocrystals is modeled with (1) a new empirical strain function in Bragg-rod calculations and (2) explicit spherical and cylindrical mandrels implemented in the Debye equation.

Manceau, A.

2013-01-17T23:59:59.000Z

104

Bubble tree convergence for the harmonic sequence of harmonic surfaces in CPn  

E-Print Network (OSTI)

] and there are no necks [15], i.e. the energy of the bubble tree map is the limit of the energies of the sequenceBubble tree convergence for the harmonic sequence of harmonic surfaces in CPn Mo Xiaohuan and Sun holomorphic (or anti- holomorphic) map from M to CPn , or a "bubble tree limit" consisting of a har- monic map

Lu, Tiao

105

Low-energy parameters of neutron-neutron interaction in the effective-range approximation  

SciTech Connect

The effect of the mass difference between the charged and neutral pions on the low-energy parameters of nucleon-nucleon interaction in the {sup 1}S{sub 0} state is studied in the effective-range approximation. On the basis of experimental values of the singlet parameters of neutron-proton scattering and the experimental value of the virtual-state energy for the neutron-neutron systemin the {sup 1}S{sub 0} state, the following values were obtained for the neutron-neutron scattering length and effective range: a{sub nn} = -16.59(117) fm and r{sub nn} = 2.83(11) fm. The calculated values agree well with present-day experimental results.

Babenko, V. A.; Petrov, N. M. [National Academy of Sciences of Ukraine, Bogolyubov Institute for Theoretical Physics (Ukraine)

2013-06-15T23:59:59.000Z

106

Random walk of magnetic field lines for different values of the energy-range spectral index  

E-Print Network (OSTI)

An analytical nonlinear description of field-line wandering in partially statistically magnetic systems was proposed recently [A. Shalchi, I. Kourakis, Astronomy and Astrophysics, 470, 405 (2007)]. In this article we investigate the influence of the wave-spectrum in the energy-range onto field line random walk by applying this formulation. It is demonstrated that in all considered cases we clearly obtain a superdiffusive behaviour of the field-lines. If the energy-range spectral index exceeds unity a free-streaming behaviour of the field-lines can be found for all relevant length-scales of turbulence. Since the superdiffusive results obtained for the slab model are exact, it seems that superdiffusion is the normal behavior of field line wandering.

A. Shalchi; I. Kourakis

2007-09-17T23:59:59.000Z

107

Limiting absorption principle for some long range perturbations of Dirac systems at threshold energies  

E-Print Network (OSTI)

We establish a limiting absorption principle for some long range perturbations of the Dirac systems at threshold energies. We cover multi-center interactions with small coupling constants. The analysis is reduced to study a family of non-self-adjoint operators. The technique is based on a positive commutator theory for non self-adjoint operators, which we develop in appendix. We also discuss some applications to the dispersive Helmholzt model in the quantum regime.

Nabile Boussaid; Sylvain Golnia

2009-06-08T23:59:59.000Z

108

Electron cyclotron harmonic resonances in high-frequency heating of the ionosphere  

SciTech Connect

Electron acceleration by upper hybrid waves under cyclotron harmonic resonance interaction is studied. Theory is formulated; the analytical solutions in the second and fourth harmonic cyclotron resonance cases are obtained, and in the third harmonic case, a first order differential equation governing the evolution of the electron energy is derived. The theory is applied for explaining the generation of artificial ionization layers observed in high-frequency (HF) ionospheric heating experiments. The upper hybrid waves are assumed to be excited parametrically by the O-mode HF heating wave. As the decay mode is the lower hybrid wave, the excited upper hybrid waves have wavelengths ranging from 0.25 to 0.5 m, which are short enough to effectively incorporate the finite Larmour radius effect for the harmonic cyclotron resonance interactions as well as have a frequency bandwidth of about 20 kHz, which provides an altitude region of about 10 km for continuous harmonic cyclotron resonance interaction between electrons and descending waves in the slightly inhomogeneous geomagnetic field. The numerical results on electron acceleration show that electron fluxes with energies larger than 14 eV are generated in the three harmonic cases. These energetic electrons cause impact ionizations, which are descending to form artificial ionization layers at the bottom of the ionospheric F region.

Kuo, Spencer P. [Polytechnic Institute of New York University, 6 MetroTech Center, Brooklyn, New York 11201 (United States)] [Polytechnic Institute of New York University, 6 MetroTech Center, Brooklyn, New York 11201 (United States)

2013-09-15T23:59:59.000Z

109

Extreme Harmonic Generation in Electrically Driven Spin Resonance  

Science Journals Connector (OSTI)

We report the observation of multiple harmonic generation in electric dipole spin resonance in an InAs nanowire double quantum dot. The harmonics display a remarkable detuning dependence: near the interdot charge transition as many as eight harmonics are observed, while at large detunings we only observe the fundamental spin resonance condition. The detuning dependence indicates that the observed harmonics may be due to Landau-Zener transition dynamics at anticrossings in the energy level spectrum.

J. Stehlik; M.?D. Schroer; M.?Z. Maialle; M.?H. Degani; J.?R. Petta

2014-06-06T23:59:59.000Z

110

Long-range correlation studies at the SPS energies in MC model with string fusion  

E-Print Network (OSTI)

Studies of the ultrarelativistic collisions of hadrons and nuclei at different centrality and energy enable to explore the QCD phase diagram in a wide range of temperature and baryon density. Long-range correlation studies are considered as a tool, sensitive to the observation of phase transition and the critical point. In the present work, a Monte Carlo model of proton-proton, proton-nucleus, and nucleus-nucleus collisions is applied to heavy and light ion collisions at the cms energy range from a few up to several hundred GeV per nucleon. The model describes the nuclear collisions at the partonic level through interaction of color dipoles and takes into account the effects of string fusion, which can be considered as an alternative to relativistic hydrodynamics way of describing the collective phenomena in heavy-ion collisions. The implementing of both the string fusion and the finite rapidity length of strings allowed to consider the particle production at non-zero baryochemical potential. We calculated th...

Kovalenko, Vladimir

2015-01-01T23:59:59.000Z

111

Abstract--Nowadays, there are huge ranges of energy market participants. Commercial success of this area actor  

E-Print Network (OSTI)

that energy forecasting may bring to the security, economics and resource management fields, the scientificAbstract-- Nowadays, there are huge ranges of energy market participants. Commercial success of this area actor depends on the ability to submit competitive predictions relative to energy balance trends

Boyer, Edmond

112

Effect of glass composition on activation energy of viscosity in glass-melting-temperature range  

SciTech Connect

In the high-temperature range, where the viscosity (Eta) of molten glass is <10{sup 3} Pa s, the activation energy (B) is virtually ln(Eta) = A + B/T, is nearly independent of melt composition. Hence, the viscosity-composition relationship for Eta < 10{sup 3} Pa s is defined by B as a function of composition. Using a database encompassing over 1300 compositions of high-level waste glasses with nearly 7000 viscosity data, we developed mathematical models for B(x), where x is the composition vector in terms of mass fractions of components. In this paper, we present 13 versions of B(x) as first- and second-order polynomials with coefficients for 15 to 39 components, including Others, a component that sums constituents having little effect on viscosity.

Hrma, Pavel R.; Han, Sang Soo

2012-08-01T23:59:59.000Z

113

The effect of African growth on future global energy, emissions, and regional development  

Science Journals Connector (OSTI)

Economic growth will drive Africas demand for energy. However, despite the harmonization in GDP per capita and population, models foresee a broad range in baseline final energy and CO2 emissions (Fig.1...), eve...

Katherine Calvin; Shonali Pachauri; Enrica De Cian; Ioanna Mouratiadou

2013-11-01T23:59:59.000Z

114

Spectral shifts of the fundamental and third harmonic radiation in air induced by self-focused femtosecond laser pulses  

Science Journals Connector (OSTI)

Abstract The large spectral shifts of the fundamental and third harmonic waves (up to 20nm and 50nm, respectively) during femtosecond laser pulse filamentation in air have been demonstrated by using focusing lenses of long focal length. It was shown that in a wide range of laser intensities this process does not saturate and linearly depend on the pump pulse energy.

K. Steponkevi?ius; V. Pyragaite; B. Makauskas; E. eimys; V. Vai?aitis

2014-01-01T23:59:59.000Z

115

REVIEW OF SCIENTIFIC INSTRUMENTS 82, 083301 (2011) Increasing the energy dynamic range of solid-state nuclear track detectors  

E-Print Network (OSTI)

. This allows simultaneous imaging of both high and low energy particles from the fusion reactions D + 3 He 4REVIEW OF SCIENTIFIC INSTRUMENTS 82, 083301 (2011) Increasing the energy dynamic range of solid-state nuclear track detectors using multiple surfaces A. B. Zylstra,a) H. G. Rinderknecht, N. Sinenian, M. J

116

Optimal Transmission Range for Wireless Ad Hoc Networks Based on Energy Efficiency  

E-Print Network (OSTI)

, and security issues, we investigate the efficiency of energy consumption in wireless ad hoc networks-efficient mechanisms is of importance. In wireless ad hoc networks, energy consumption at each node is mainly due energy consumption of system operation and data processing, energy consumption economy of radio

Deng, Jing

117

Monopole vector spherical harmonics  

Science Journals Connector (OSTI)

Eigenfunctions of total angular momentum for a charged vector field interacting with a magnetic monopole are constructed and their properties studied. In general, these eigenfunctions can be obtained by applying vector operators to the monopole spherical harmonics in a manner similar to that often used for the construction of the ordinary vector spherical harmonics. This construction fails for the harmonics with the minimum allowed angular momentum. These latter form a set of vector fields with vanishing covariant curl and covariant divergence, whose number can be determined by an index theorem.

Erick J. Weinberg

1994-01-15T23:59:59.000Z

118

Dixie Valley - Geothermal Development in the Basin and Range | Open Energy  

Open Energy Info (EERE)

- Geothermal Development in the Basin and Range - Geothermal Development in the Basin and Range Jump to: navigation, search OpenEI Reference LibraryAdd to library Web Site: Dixie Valley - Geothermal Development in the Basin and Range Published Publisher Not Provided, Date Not Provided DOI Not Provided Check for DOI availability: http://crossref.org Online Internet link for Dixie Valley - Geothermal Development in the Basin and Range Citation Dixie Valley - Geothermal Development in the Basin and Range [Internet]. [updated 2013/01/01;cited 2013/01/01]. Available from: http://www.geothermex.com/projects-dixie-valley.php Retrieved from "http://en.openei.org/w/index.php?title=Dixie_Valley_-_Geothermal_Development_in_the_Basin_and_Range&oldid=682561" Categories: References Geothermal References Uncited

119

A look at damped harmonic oscillators through the phase plane  

Science Journals Connector (OSTI)

......classes ranging from Elementary Algebra to Abstract...harmonic motion in an elementary ordinary differential...harmonic motion in an elementary ordinary differential...equation in which the electric charge q, the inductance...elastance) and the resistance R, replace x, m......

Yousef Daneshbod; Joe Latulippe

2011-06-01T23:59:59.000Z

120

Magnetotellurics At Nw Basin & Range Region (Pritchett, 2004) | Open Energy  

Open Energy Info (EERE)

Magnetotellurics At Nw Basin & Range Region Magnetotellurics At Nw Basin & Range Region (Pritchett, 2004) Exploration Activity Details Location Northwest Basin and Range Geothermal Region Exploration Technique Magnetotellurics Activity Date Usefulness useful DOE-funding Unknown Notes NOTE: These are theoretical/computer simulation tests of various methods on eight hypothetical 'model' basing-and-range geothermal systems. "The 300-meter heat flow holes are essentially useless for finding the "hidden" reservoirs. Clearly, the best results are obtained from the SP and MT surveys, with DC resistivity a close third. It is concluded that the best way to find "hidden" basin and range geothermal resources of this general type is to carry out simultaneous SP and low-frequency MT surveys, and then

Note: This page contains sample records for the topic "harmonics energy range" 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

Heat flow in the northern Basin and Range province | Open Energy  

Open Energy Info (EERE)

in the northern Basin and Range province in the northern Basin and Range province Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal Article: Heat flow in the northern Basin and Range province Abstract The heat flow in the Basin and Range province of northern Nevada is extremely complex. It is a product of superposition of the regional effects of extension and volcanism /intrusion modified by the local conductive effects of thermal refraction (complicated structural settings),variations in radioactive heat production, erosion and sedimentation. In addition to these conductive effects,groundwater flow, both on a local and a regional basis,affects heat-flow measurements. Typical heat -flow values for the Basin and Range province average 85 +/- 10 mWm-2. The higher estimates are

122

Self Potential At Nw Basin & Range Region (Pritchett, 2004) | Open Energy  

Open Energy Info (EERE)

Self Potential At Nw Basin & Range Region (Pritchett, Self Potential At Nw Basin & Range Region (Pritchett, 2004) Exploration Activity Details Location Northwest Basin and Range Geothermal Region Exploration Technique Self Potential Activity Date Usefulness useful DOE-funding Unknown Notes NOTE: These are theoretical/computer simulation tests of various methods on eight hypothetical 'model' basing-and-range geothermal systems. "The 300-meter heat flow holes are essentially useless for finding the "hidden" reservoirs. Clearly, the best results are obtained from the SP and MT surveys, with DC resistivity a close third. It is concluded that the best way to find "hidden" basin and range geothermal resources of this general type is to carry out simultaneous SP and low-frequency MT surveys, and then

123

Nuclear correlation and finite interaction-range effects in high-energy $(e,e'p)$ nuclear transparency  

E-Print Network (OSTI)

Nuclear transparency is calculated for high-energy, semi-inclusive $(e,e'p)$ reactions, by accounting for all orders of Glauber multiple-scattering and by using realistic finite-range $p N$ interaction and (dynamically and statistically) correlated nuclear wave functions. The nuclear correlation effect is reduced due to the $p N$ finite-range effect. The net effect is small, and depends sensitively on details of the nuclear correlations in finite nuclei, which are poorly known at present.

Ryoichi Seki; T. D. Shoppa; Akihisa Kohama; Koichi Yazaki

1995-12-06T23:59:59.000Z

124

A Harmonic Kicker Scheme for the Circulator Cooler Ring in the Proposed Medium Energy Electron-Ion Collider  

SciTech Connect

The current electron cooler design for the proposed Medium Energy Electron-Ion collider (MEIC) at Jefferson Lab utilizes a circulator ring for reuse of the cooling electron bunch up to 100 times to cool the ion beams. This cooler requires a fast kicker system for injecting and extracting individual bunches in the circulator ring. Such a kicker must work at a high repetition rate, up to 7.5 to 75 MHz depending on the number of turns in the recirculator ring. It also must have a very short rise and fall time (of order of 1 ns) such that it will kick an individual bunch without disturbing the others in the ring. Both requirements are orders of magnitude beyond the present state-of-the-art as well as the goals of other on-going kicker R&D programs such as that for the ILC damping rings. In this paper we report a scheme of creating this fast, high repetition rate kicker by combining RF waveforms at multiple frequencies to create a kicker waveform that will, for example, kick every eleventh bunch while leaving the other ten unperturbed. We also present a possible implementation of this scheme as well as discuss its limitations.

Nissen, Edward W.; Hutton, Andrew M.; Kimber, Andrew J.

2013-06-01T23:59:59.000Z

125

Measurement of Electron Backscattering in the Energy Range of Neutron $?$-Decay  

E-Print Network (OSTI)

We report on the first detailed measurements of electron backscattering from low Z targets at energies up to 124 keV. Both energy and angular distributions of the backscattered electrons are measured and compared with electron transport simulations based on the Geant4 and Penelope Monte Carlo simulation codes. Comparisons are also made with previous, less extensive, measurements and with measurements at lower energies.

J. W. Martin; J. Yuan; S. A. Hoedl; B. W. Filippone; D. Fong; T. M. Ito; E. Lin; B. Tipton; A. R. Young

2003-10-01T23:59:59.000Z

126

Background and Reflections on the Life Cycle Assessment Harmonization Project  

SciTech Connect

Despite the ever-growing body of life cycle assessment (LCA) literature on electricity generation technologies, inconsistent methods and assumptions hamper comparison across studies and pooling of published results. Synthesis of the body of previous research is necessary to generate robust results to assess and compare environmental performance of different energy technologies for the benefit of policy makers, managers, investors, and citizens. With funding from the U.S. Department of Energy, the National Renewable Energy Laboratory initiated the LCA Harmonization Project in an effort to rigorously leverage the numerous individual studies to develop collective insights. The goals of this project were to: (1) understand the range of published results of LCAs of electricity generation technologies, (2) reduce the variability in published results that stem from inconsistent methods and assumptions, and (3) clarify the central tendency of published estimates to make the collective results of LCAs available to decision makers in the near term. The LCA Harmonization Project's initial focus was evaluating life cycle greenhouse gas (GHG) emissions from electricity generation technologies. Six articles from this first phase of the project are presented in a special supplemental issue of the Journal of Industrial Ecology on Meta-Analysis of LCA: coal (Whitaker et al. 2012), concentrating solar power (Burkhardt et al. 2012), crystalline silicon photovoltaics (PVs) (Hsu et al. 2012), thin-film PVs (Kim et al. 2012), nuclear (Warner and Heath 2012), and wind (Dolan and Heath 2012). Harmonization is a meta-analytical approach that addresses inconsistency in methods and assumptions of previously published life cycle impact estimates. It has been applied in a rigorous manner to estimates of life cycle GHG emissions from many categories of electricity generation technologies in articles that appear in this special supplemental supplemental issue, reducing the variability and clarifying the central tendency of those estimates in ways useful for decision makers and analysts. Each article took a slightly different approach, demonstrating the flexibility of the harmonization approach. Each article also discusses limitations of the current research, and the state of knowledge and of harmonization, pointing toward a path of extending and improving the meta-analysis of LCAs.

Heath, G. A.; Mann, M. K.

2012-04-01T23:59:59.000Z

127

Geothermometry At Northern Basin & Range Region (Laney, 2005) | Open Energy  

Open Energy Info (EERE)

Geothermometry At Northern Basin & Range Region (Laney, 2005) Geothermometry At Northern Basin & Range Region (Laney, 2005) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geothermometry At Northern Basin & Range Region (Laney, 2005) Exploration Activity Details Location Northern Basin and Range Geothermal Region Exploration Technique Geothermometry Activity Date Usefulness not indicated DOE-funding Unknown Notes Geochemical Sampling of Thermal and Non-thermal Waters in Nevada, Shevenell and Garside. The objective of this project is to obtain geochemical data from springs (and some wells) for which data are not publicly available, or for which the analyses are incomplete, poor, or nonexistent. With these data, geothermometers are being calculated and a preliminary assessment of

128

Isotopic Analysis At Nw Basin & Range Region (Laney, 2005) | Open Energy  

Open Energy Info (EERE)

Isotopic Analysis At Nw Basin & Range Region (Laney, 2005) Isotopic Analysis At Nw Basin & Range Region (Laney, 2005) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Isotopic Analysis- Fluid At Nw Basin & Range Region (Laney, 2005) Exploration Activity Details Location Northwest Basin and Range Geothermal Region Exploration Technique Isotopic Analysis- Fluid Activity Date Usefulness not indicated DOE-funding Unknown Notes Geochemical Sampling of Thermal and Non-thermal Waters in Nevada, Shevenell and Garside. The objective of this project is to obtain geochemical data from springs (and some wells) for which data are not publicly available, or for which the analyses are incomplete, poor, or nonexistent. With these data, geothermometers are being calculated and a preliminary assessment of

129

Refraction Survey At Nw Basin & Range Region (Laney, 2005) | Open Energy  

Open Energy Info (EERE)

Nw Basin & Range Region (Laney, 2005) Nw Basin & Range Region (Laney, 2005) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Refraction Survey At Nw Basin & Range Region (Laney, 2005) Exploration Activity Details Location Northwest Basin and Range Geothermal Region Exploration Technique Refraction Survey Activity Date Usefulness not indicated DOE-funding Unknown Notes Assembling Crustal Geophysical Data for Geothermal Exploration in the Great Basin, Louie and Coolbaugh. We have compiled velocity information from sources in the literature, results of previous seismic experiments and earthquake-monitoring projects, and data donated from mining, geothermal, and petroleum companies. We also collected (May 2002 and August 2004) two new crustal refraction profiles across western Nevada and the northern and

130

Geothermometry At Northern Basin & Range Region (Cole, 1983) | Open Energy  

Open Energy Info (EERE)

Northern Basin & Range Region Northern Basin & Range Region (Cole, 1983) Exploration Activity Details Location Northern Basin and Range Geothermal Region Exploration Technique Geothermometry Activity Date Usefulness not indicated DOE-funding Unknown Notes Wstern Utah hot springs: Antelope, Fish (Deadman), Fish (Wilson), Twin Peak, Cudahy, Laverkin, Grantsville, Crystal Prison, Arrowhead, Red Hill, Monroe, Joseph, Castilla, Saratoga, Thermo, Crater, Wasatch, Beck, Deseret, Big Spring, Blue Warm, Crystal Madsen, Udy, Cutler, Garland, Utah, Ogden, Hooper, Newcastle Area References David R. Cole (1983) Chemical And Isotopic Investigation Of Warm Springs Associated With Normal Faults In Utah Retrieved from "http://en.openei.org/w/index.php?title=Geothermometry_At_Northern_Basin_%26_Range_Region_(Cole,_1983)&oldid=4014

131

Improvements in Test Protocols for Electric Vehicles to Determine Range and Total Energy Consumption  

Science Journals Connector (OSTI)

As electric vehicles have entered the market fairly recently, ... tested the same way as the ICE-driven cars with the exception that determining range is ... However, the current procedures address mainly primary...

Juhani Laurikko; Jukka Nuottimki

2013-01-01T23:59:59.000Z

132

Nuclear Research & Consultancy Group (NRG) develops and provides sustainable nuclear technology for energy, environment, and health. NRG offers a wide range of services to energy  

E-Print Network (OSTI)

Nuclear Research & Consultancy Group (NRG) develops and provides sustainable nuclear technology for energy, environment, and health. NRG offers a wide range of services to energy utilities, government organizations and various branches of industry - including the nuclear, financial services and medical sectors

Lindken, Ralph

133

A system for differential neutron scattering experiments in the energy range from 0.5 to 20 MeV  

E-Print Network (OSTI)

A system for differential neutron scattering experiments in the energy range from 0.5 to 20 MeV F 2010 Accepted 15 April 2010 Available online 27 May 2010 Keywords: Scattering Neutron Benchmark dependent scattered neutron distributions. Scattering measurements were performed on carbon and molybdenum

Danon, Yaron

134

Photon interference effect in x-ray absorption spectra over a wide energy range Y. Nishino and T. Ishikawa  

E-Print Network (OSTI)

. Therefore the atomic absorption coeffi- cient a is given by a a PI a ES a Incoh , 1 where a PI , a ESPhoton interference effect in x-ray absorption spectra over a wide energy range Y. Nishino and T Received 3 July 2002; published 12 September 2002 We consider fundamental structures in x-ray absorption

Korecki, Pawe³

135

Regional Cooperation and Harmonization on EESL  

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

Regional Cooperation and Regional Cooperation and Harmonization on EESL LI Tienan Professor Director of Center for Industrial Energy Efficiency (CIEE) Chairman of ISO/TC 257 Energy Savings 国宏美亚(北京)工业节能减排技术促进中心 Center for Industrial Energy Efficiency (CIEE) 国宏美亚(北京)工业节能减排技术促进中心 Center for Industrial Energy Efficiency (CIEE) Roles of EESL Regional EESL Cooperation and Harmonization Focus and Barriers Best Practice: BRESL Project Recommendations Contents 国宏美亚(北京)工业节能减排技术促进中心 Center for Industrial Energy Efficiency (CIEE) 国宏美亚(北京)工业节能减排技术促进中心 Center for Industrial Energy Efficiency (CIEE)

136

Water Sampling At Northern Basin & Range Region (Laney, 2005) | Open Energy  

Open Energy Info (EERE)

Water Sampling At Northern Basin & Range Region Water Sampling At Northern Basin & Range Region (Laney, 2005) Exploration Activity Details Location Northern Basin and Range Geothermal Region Exploration Technique Water Sampling Activity Date Usefulness not indicated DOE-funding Unknown Notes Geochemical Sampling of Thermal and Non-thermal Waters in Nevada, Shevenell and Garside. The objective of this project is to obtain geochemical data from springs (and some wells) for which data are not publicly available, or for which the analyses are incomplete, poor, or nonexistent. With these data, geothermometers are being calculated and a preliminary assessment of the geothermal potential and ranking of the sampled areas is being conducted using the new geochemical data. Objectives changed slightly in 2004. Samples are now being collected at sites identified by other

137

Geothermometry At Nw Basin & Range Region (Laney, 2005) | Open Energy  

Open Energy Info (EERE)

Geothermometry At Nw Basin & Range Region (Laney, Geothermometry At Nw Basin & Range Region (Laney, 2005) Exploration Activity Details Location Northwest Basin and Range Geothermal Region Exploration Technique Geothermometry Activity Date Usefulness not indicated DOE-funding Unknown Notes Geochemical Sampling of Thermal and Non-thermal Waters in Nevada, Shevenell and Garside. The objective of this project is to obtain geochemical data from springs (and some wells) for which data are not publicly available, or for which the analyses are incomplete, poor, or nonexistent. With these data, geothermometers are being calculated and a preliminary assessment of the geothermal potential and ranking of the sampled areas is being conducted using the new geochemical data. Objectives changed slightly in 2004. Samples are now being collected at sites identified by other

138

Geodetic Survey At Nw Basin & Range Region (Laney, 2005) | Open Energy  

Open Energy Info (EERE)

Geodetic Survey At Nw Basin & Range Region (Laney, Geodetic Survey At Nw Basin & Range Region (Laney, 2005) Exploration Activity Details Location Northwest Basin and Range Geothermal Region Exploration Technique Geodetic Survey Activity Date Usefulness useful regional reconnaissance DOE-funding Unknown Notes Targeting of Potential Geothermal Resources in the Great Basin from Regional to Basin-Scale Relationships Between Geodetic Strain and Geological Structures, Geoffrey Blewitt. The objectives of this project are to assess the use of inter-seismic crustal strain rates derived from GPS-stations as an exploration tool for non-magmatic high-temperature geothermal systems, and to use this technique to target potential geothermal resources in the Great Basin. Two potential target areas were identified in year one (FY03) by regional-scale studies: (1) the area

139

Water Sampling At Nw Basin & Range Region (Laney, 2005) | Open Energy  

Open Energy Info (EERE)

Water Sampling At Nw Basin & Range Region (Laney, Water Sampling At Nw Basin & Range Region (Laney, 2005) Exploration Activity Details Location Northwest Basin and Range Geothermal Region Exploration Technique Water Sampling Activity Date Usefulness not indicated DOE-funding Unknown Notes Geochemical Sampling of Thermal and Non-thermal Waters in Nevada, Shevenell and Garside. The objective of this project is to obtain geochemical data from springs (and some wells) for which data are not publicly available, or for which the analyses are incomplete, poor, or nonexistent. With these data, geothermometers are being calculated and a preliminary assessment of the geothermal potential and ranking of the sampled areas is being conducted using the new geochemical data. Objectives changed slightly in 2004. Samples are now being collected at sites identified by other

140

Optical harmonic generator  

DOE Patents (OSTI)

A pair of uniaxial birefringent crystal elements are fixed together to form a serially arranged, integral assembly which, alternatively, provides either a linearly or elliptically polarized second-harmonic output wave or a linearly polarized third-harmonic output wave. The "extraordinary" or "e" directions of the crystal elements are oriented in the integral assembly to be in quadrature (90.degree.). For a second-harmonic generation in the Type-II-Type-II angle tuned case, the input fundamental wave has equal amplitude "o" and "e" components. For a third-harmonic generation, the input fundamental wave has "o" and "e" components whose amplitudes are in a ratio of 2:1 ("o":"e" reference first crystal). In the typical case of a linearly polarized input fundamental wave this can be accomplished by simply rotating the crystal assembly about the input beam direction by 10.degree.. For both second and third harmonic generation input precise phase-matching is achieved by tilting the crystal assembly about its two sensitive axes ("o").

Summers, Mark A. (Livermore, CA); Eimerl, David (Pleasanton, CA); Boyd, Robert D. (Livermore, CA)

1985-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "harmonics energy range" 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

Optical harmonic generator  

DOE Patents (OSTI)

A pair of uniaxial birefringent crystal elements are fixed together to form a serially arranged, integral assembly which, alternatively, provides either a linearly or elliptically polarized second-harmonic output wave or a linearly polarized third-harmonic output wave. The extraordinary or e directions of the crystal elements are oriented in the integral assembly to be in quadrature (90/sup 0/). For a second-harmonic generation in the Type-II-Type-II angle tuned case, the input fundamental wave has equal amplitude o and e components. For a third-harmonic generation, the input fundamental wave has o and e components whose amplitudes are in a ratio of 2:1 (o:e reference first crystal). In the typical case of a linearly polarized input fundamental wave this can be accomplished by simply rotating the crystal assembly about the input beam direction by 10/sup 0/. For both second and third harmonic generation input precise phase-matching is achieved by tilting the crystal assembly about its two sensitive axeses (o).

Summers, M.A.; Eimerl, D.; Boyd, R.D.

1982-06-10T23:59:59.000Z

142

Property:Current Velocity Range(m/s) | Open Energy Information  

Open Energy Info (EERE)

Velocity Range(m/s) Velocity Range(m/s) Jump to: navigation, search Property Name Current Velocity Range(m/s) Property Type String Pages using the property "Current Velocity Range(m/s)" Showing 25 pages using this property. (previous 25) (next 25) 1 1.5-ft Wave Flume Facility + 0.0 + 10-ft Wave Flume Facility + 0.0 + 11-ft Wave Flume Facility + 0.0 + 2 2-ft Flume Facility + 0.0 + 3 3-ft Wave Flume Facility + 0.0 + 5 5-ft Wave Flume Facility + 0.0 + 6 6-ft Wave Flume Facility + 0.0 + A Alden Large Flume + 3.2 + Alden Small Flume + 0.0 + Alden Wave Basin + 0.0 + B Breakwater Research Facility + 0.0 + C Carderock Maneuvering & Seakeeping Basin + 0.0 + Carderock Tow Tank 2 + 0.0 + Carderock Tow Tank 3 + 0.0 + Chase Tow Tank + 0.0 + Coastal Harbors Modeling Facility + 0.0 +

143

Energy Impacts of Effective Range Hood Use for all U.S. Residential Cooking  

E-Print Network (OSTI)

electric, natural gas, or propane) was assigned to each homeof 123 kJ/min (7 kBtu/h). Propane ranges and stoves wereand 2.2 TWh [8.0 PJ] of propane for the U.S. housing sector.

Logue, Jennifer M

2014-01-01T23:59:59.000Z

144

Spherical Harmonic Transform Algorithms  

SciTech Connect

A collection of MATLAB classes for computing spherical harmonic transforms are presented and used to solve simple partial differential equations on the sphere. The spectral synthesis and analysis using fast Fourier transforms and Legendre transforms with the associated Legendre functions are presented in depth. A set of methods associated with a spectral\\_field class provides spectral approximation to the $\\DIV$, $\\CURL$, $\\GRAD$, and $\\LAPL$ in spherical geometr y. Laplace inversion and Helmholtz equation solvers are also methods for this clas s. Investigation of algorithms and analysis for spherical harmonic transform optio ns for parallel high performance computers are discussed in the context of global climate and weather models.

Drake, John B [ORNL; Worley, Patrick H [ORNL; D'Azevedo, Eduardo [ORNL

2008-01-01T23:59:59.000Z

145

Ranges and kinetic energies of fragments from 14.5-mev neutrons induced fission of ?U  

E-Print Network (OSTI)

for two hours were 7. 3 x 10 n/cm -sec and 4. 0 x 10 n/cm ? sec, respectively. 8 2 8 2 Absolute neutron flux can be measured if one deter- mines the absolute activity of copper monitor at the end 0 of irradiation for a known time. The A activity is re...); the semiconductor detector measurement of the energies for the charged-particle-in- duced fission of Ra and Th (5); and time-of-flight measurement of energies and velocities of fragments from U, 2 U and 3 Pu (6). One of the interesting aspects...

Desai, Rajanikant Dattatraya

2012-06-07T23:59:59.000Z

146

Norbert Wiener Center for Harmonic Analysis and  

E-Print Network (OSTI)

and industry to provide a forum for interactive problem solving · Targeted work groups and internships AFOSR Reduction · Mathematics Involved ­ Theory of Frame Potential Energy ­ Harmonic Analysis ­ Geometry #12;Data Fusion · Mathematics Involved ­ Fusion frames ­ Kadison-Singer conjecture theorem in C

Maryland at College Park, University of

147

Control of a DFIG-based wind energy conversion system operating under harmonically distorted unbalanced grid voltage along with nonsinusoidal rotor injection conditions  

Science Journals Connector (OSTI)

Abstract In this study, novel hybrid proportional-integral-harmonic resonant (PI-R) controllers implemented in the both (dq)+ and rotor (?r?r) reference frames are presented to control a doubly fed induction generator (DFIG)-based wind power generation system operating simultaneously under the three conditions which are nonsinusoidal rotor voltage injection, harmonically distorted grid voltage, and unbalanced grid voltage. The contribution of this work is to present a novel control scheme implemented in the both (dq)+ and rotor (?r?r) reference frames by considering all the three mentioned conditions (no one or two of them). It will be shown that the proposed control scheme keeps the DFIG in an acceptable operation margin and furthermore, it eliminates all harmonics and pulsations components from the stator and the rotor circuits when the DFIG operates under harmonically distorted unbalanced grid voltage along with quasi-sine rotor injection conditions. The proposed control scheme is simulated in MATLAB/Simulink and simulated results are presented to validate the theoretical results. Although this work is carried out under the three mentioned conditions and other related works have been reported under only one condition, comparison between the results of this work and other works is performed to prove the excellent performances of the proposed control scheme.

Hassan Fathabadi

2014-01-01T23:59:59.000Z

148

Quantum Mechanical Search and Harmonic Perturbation  

E-Print Network (OSTI)

Perturbation theory in quantum mechanics studies how quantum systems interact with their environmental perturbations. Harmonic perturbation is a rare special case of time-dependent perturbations in which exact analysis exists. Some important technology advances, such as masers, lasers, nuclear magnetic resonance, etc., originated from it. Here we add quantum computation to this list with a theoretical demonstration. Based on harmonic perturbation, a quantum mechanical algorithm is devised to search the ground state of a given Hamiltonian. The intrinsic complexity of the algorithm is continuous and parametric in both time T and energy E. More precisely, the probability of locating a search target of a Hamiltonian in N-dimensional vector space is shown to be 1/(1+ c N E^{-2} T^{-2}) for some constant c. This result is optimal. As harmonic perturbation provides a different computation mechanism, the algorithm may suggest new directions in realizing quantum computers.

Jie-Hong R. Jiang; Dah-Wei Chiou; Cheng-En Wu

2007-02-01T23:59:59.000Z

149

Quantum dynamics of the damped harmonic oscillator  

E-Print Network (OSTI)

The quantum theory of the damped harmonic oscillator has been a subject of continual investigation since the 1930s. The obstacle to quantization created by the dissipation of energy is usually dealt with by including a discrete set of additional harmonic oscillators as a reservoir. But a discrete reservoir cannot directly yield dynamics such as Ohmic damping (proportional to velocity) of the oscillator of interest. By using a continuum of oscillators as a reservoir, we canonically quantize the harmonic oscillator with Ohmic damping and also with general damping behaviour. The dynamics of a damped oscillator is determined by an arbitrary effective susceptibility that obeys Kramers-Kronig relations. This approach offers an alternative description of nano-mechanical oscillators and opto-mechanical systems.

T. G. Philbin

2012-05-11T23:59:59.000Z

150

Optical Third-Harmonic Generation in Graphene  

We report strong third-harmonic generation in monolayer graphene grown by chemical vapor deposition and transferred to an amorphous silica (glass) substrate; the photon energy is in three-photon resonance with the exciton-shifted van Hove singularity at the M point of graphene. The polarization selection rules are derived and experimentally verified. In addition, our polarization- and azimuthal-rotation-dependent third-harmonic-generation measurements reveal in-plane isotropy as well as anisotropy between the in-plane and out-of-plane nonlinear optical responses of graphene. Since the third-harmonic signal exceeds that from bulk glass by more than 2 orders of magnitude, the signal contrast permits background-free scanning of graphene and provides insight into the structural properties of graphene.

Hong, Sung-Young; Dadap, Jerry I.; Petrone, Nicholas; Yeh, Po-Chun; Hone, James; Osgood, Richard M.

2013-06-01T23:59:59.000Z

151

Quantum dynamics of the damped harmonic oscillator  

E-Print Network (OSTI)

The quantum theory of the damped harmonic oscillator has been a subject of continual investigation since the 1930s. The obstacle to quantization created by the dissipation of energy is usually dealt with by including a discrete set of additional harmonic oscillators as a reservoir. But a discrete reservoir cannot directly yield dynamics such as Ohmic damping (proportional to velocity) of the oscillator of interest. By using a continuum of oscillators as a reservoir, we canonically quantize the harmonic oscillator with Ohmic damping and also with general damping behaviour. The dynamics of a damped oscillator is determined by an arbitrary effective susceptibility that obeys Kramers-Kronig relations. This approach offers an alternative description of nano-mechanical oscillators and opto-mechanical systems.

Philbin, T G

2012-01-01T23:59:59.000Z

152

Remainder estimates for the Long Range Behavior of the van der Waals interaction energy  

E-Print Network (OSTI)

The van der Waals-London's law, for a collection of atoms at large separation, states that their interaction energy is pairwise attractive and decays proportionally to one over their distance to the sixth. The first rigorous result in this direction was obtained by Lieb and Thirring [LT], by proving an upper bound which confirms this law. Recently the van der Waals-London's law was proven under some assumptions by I.M. Sigal and the author [AS]. Following the strategy of [AS] and reworking the approach appropriately, we prove estimates on the remainder of the interaction energy. Furthermore, using an appropriate test function, we prove an upper bound for the interaction energy, which is sharp to leading order. For the upper bound, our assumptions are weaker, the remainder estimates stronger and the proof is simpler. The upper bound, for the cases it applies, improves considerably the upper bound of Lieb and Thirring. However, their bound is much more general. Here we consider only spinless Fermions.

Ioannis Anapolitanos

2014-10-21T23:59:59.000Z

153

Pencil lead plasma for generating multimicrojoule high-order harmonics with a broad spectrum  

SciTech Connect

Using the plasma harmonic method, we show the generation of efficient and intense high-order harmonics from plasma of pencil lead. We demonstrate multimicrojoule energy in each harmonic order for the 11th to the 17th order of a Ti:sapphire laser. By analyzing the target morphology and the plasma composition, we conclude that these intense harmonics are generated from nanoparticles of graphitic carbon.

Pertot, Y.; Elouga Bom, L. B.; Ozaki, T. [Institut National de la Recherche Scientifique, Energie, Materiaux, Telecommunications, 1650 Boulevard Lionel-Boulet, Varennes, Quebec J3X 1S2 (Canada); Bhardwaj, V. R. [Department of Physics, University of Ottawa, 150 Louis Pasteur, Ottawa, Ontario K1N 6N5 (Canada)

2011-03-07T23:59:59.000Z

154

Enhanced Harmonic Up-Conversion Using a Hybrid HGHG-EEHG Scheme  

SciTech Connect

We introduce a novel harmonic generation scheme which can be used, for a given desired harmonic, to achieve higher bunching factors, weaker chicanes, and/or less final energy spread than can be achieved using Echo-Enabled Harmonic Generation. This scheme only requires a single laser with relatively low power, and is a hybrid of High-Gain Harmonic Generation and EEHG. We present a design of this scheme applied to the Next Generation Light Source (NGLS).

Marksteiner, Quinn R. [Los Alamos National Laboratory; Bishofberger, Kip A. [Los Alamos National Laboratory; Carlsten, Bruce E. [Los Alamos National Laboratory; Freund, Henry P. [Los Alamos National Laboratory; Yampolsky, Nikolai A. [Los Alamos National Laboratory

2012-04-30T23:59:59.000Z

155

Effects of the Carnahan-Starling free energy within theories of fluids with short-range attraction  

E-Print Network (OSTI)

Within the Free-Volume Asakura-Oosawa-Vrij (FVAO) theory of colloid-polymer mixtures, we show that unphysical gas-liquid binodals predicted in the regime of small attraction range (i.e. polymer size) are caused in part by the use of the Carnahan-Starling (CS) hard sphere (HS) reference free energy. Replacement of the CS expression with an alternative dramatically affects predicted phase behaviour and, for polydisperse colloid, the resultant fractionation predictions. Although short-range attractions render FVAO, as a perturbative HS-based theory, less accurate anyway, we argue that the particular effects of CS in this regime are an important consideration -- usually ignored -- in the evaluation of such theories. We refer to a variety of literature exhibiting similarly inaccurate gas-liquid binodals, and suggest CS's status as the de facto choice of hard sphere reference should be carefully considered where short-range attractions are present.

John J. Williamson; R. Mike L. Evans; Wilson C. K. Poon; Siobhan M. Liddle

2014-07-02T23:59:59.000Z

156

Logue and Singer, HVAC&R, 20(2): 264-275, 2014. Energy Impacts of Effective Residential Range Hood Use, LBNL-6683E Page 1  

E-Print Network (OSTI)

Logue and Singer, HVAC&R, 20(2): 264-275, 2014. Energy Impacts of Effective Residential Range Hood and Singer, HVAC&R, 20(2): 264-275, 2014. Energy Impacts of Effective Residential Range Hood Use, LBNL-6683E Laboratory is an equal opportunity employer. #12;Logue and Singer, HVAC&R, 20(2): 264-275, 2014. Energy

157

Beryllium and Graphite High-Accuracy Total Cross-Section Measurements in the Energy Range from 24 to 900 keV  

E-Print Network (OSTI)

Beryllium and Graphite High-Accuracy Total Cross-Section Measurements in the Energy Range from 24 new measurements of the carbon and beryllium neutron total cross section in the energy range of 24 the measurement of the energy-dependent total cross section st ~Ei ! by applying Eq. ~1! for every TOF channel i

Danon, Yaron

158

Long range rapidity correlations and jet production in high energy nuclear collisions  

SciTech Connect

The STAR Collaboration at RHIC presents a systematic study of high transverse momentum charged di-hadron correlations at small azimuthal pair separation {Delta}{phi}, in d+Au and central Au+Au collisions at {radical}s{sub NN} = 200 GeV. Significant correlated yield for pairs with large longitudinal separation {Delta}{eta} is observed in central Au+Au, in contrast to d+Au collisions. The associated yield distribution in {Delta}{eta} x {delta}{phi} can be decomposed into a narrow jet-like peak at small angular separation which has a similar shape to that found in d+Au collisions, and a component which is narrow in {Delta}{phi} and depends only weakly on {Delta}{eta}, the 'ridge'. Using two systematically independent analyses, finite ridge yield is found to persist for trigger p{sub t} > 6 GeV/c, indicating that it is correlated with jet production. The transverse momentum spectrum of hadrons comprising the ridge is found to be similar to that of bulk particle production in the measured range (2 < p{sub t} < 4 GeV/c).

STAR Collaboration; Abelev, Betty

2010-07-05T23:59:59.000Z

159

On EAS spectrum with extremely low content of hadrons in the primary-energy range ?1014?1015 eV  

Science Journals Connector (OSTI)

The distribution of energy fluxes of the hadron component of extensive air showers through an ion-ization calorimeter in the primary-energy range ?3 1013?1016 eV is considered. Extensive air showers with zero a...

T. T. Barnaveli; T. T. Barnaveli Jr.

2007-04-01T23:59:59.000Z

160

Elastic electron scattering and vibrational excitation of isoxazole molecules in the energy range from 2 to 20 eV  

Science Journals Connector (OSTI)

Differential cross sections for elastic electron scattering and the excitation of the C-H vibrational modes of isoxazole molecules were measured in the energy range from 2 to 20 eV and over the scattering angle range from 10 to 180. The cross sections at the scattering angles of and above 90 were accessible with the use of a magnetic angle changer. The differential cross sections were integrated to yield integral and momentum transfer cross sections. The negative ion resonances in the elastic scattering at 2.7 eV and in the vibrational excitation of isoxazole at 5.5 and 10 eV were observed. The present cross sections for elastic scattering are compared with the corresponding results in furan.

Ireneusz Linert and Mariusz Zubek

2012-08-14T23:59:59.000Z

Note: This page contains sample records for the topic "harmonics energy range" 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

Isotopic Mo Neutron Total Cross Section Measurements in the Energy Range 1 to 620 keV  

Science Journals Connector (OSTI)

Abstract A series of new total cross section measurements for the stable molybdenum isotopes of 92,94,95,96,98,100Mo covering the energy range between 1 keV and 620 keV was performed at the Gaerttner LINAC Center at Rensselaer Polytechnic Institute. New high-accuracy resonance parameters were extracted from an analysis of the data using the multilevel R-matrix Bayesian code SAMMY. In the unresolved resonance region, average resonance parameters and fits to the total cross sections were obtained using the Bayesian Hauser-Feshbach statistical model code FITACS.

R. Bahran; D. Barry; G. Leinweber; M. Rapp; R. Block; A. Daskalakis; B. McDermott; S. Piela; E. Blain; Y. Danon

2014-01-01T23:59:59.000Z

162

Forbush decreases and solar events seen in the 10 - 20GeV energy range by the Karlsruhe Muon Telescope  

E-Print Network (OSTI)

Since 1993, a muon telescope located at Forschungszentrum Karlsruhe (Karlsruhe Muon Telescope) has been recording the flux of single muons mostly originating from primary cosmic-ray protons with dominant energies in the 10 - 20 GeV range. The data are used to investigate the influence of solar effects on the flux of cosmic-rays measured at Earth. Non-periodic events like Forbush decreases and ground level enhancements are detected in the registered muon flux. A selection of recent events will be presented and compared to data from the Jungfraujoch neutron monitor. The data of the Karlsruhe Muon Telescope help to extend the knowledge about Forbush decreases and ground level enhancements to energies beyond the neutron monitor regime.

I. Braun; J. Engler; J. R. Hrandel; J. Milke

2008-10-27T23:59:59.000Z

163

The Cosmic Ray p+He energy spectrum in the 3-3000 TeV energy range measured by ARGO-YBJ  

E-Print Network (OSTI)

The ARGO-YBJ experiment is a full coverage air shower detector operated at the Yangbajing International Cosmic Ray Observatory. The detector has been in stable data taking in its full configuration since November 2007 to February 2013. The high altitude and the high segmentation and spacetime resolution offer the possibility to explore the cosmic ray energy spectrum in a very wide range, from a few TeV up to the PeV region. The high segmentation allows a detailed measurement of the lateral distribution, which can be used in order to discriminate showers produced by light and heavy elements. In this work we present the measurement of the cosmic ray light component spectrum in the energy range 3-3000 TeV. The analysis has been carried out by using a two-dimensional unfolding method based on the Bayes' theorem.

Mari, S M

2015-01-01T23:59:59.000Z

164

NREL Reveals Links Among Climate Control, Battery Life, and Electric Vehicle Range (Fact Sheet), Innovation: The Spectrum of Clean Energy Innovation, NREL (National Renewable Energy Laboratory)  

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

Reveals Links Among Reveals Links Among Climate Control, Battery Life, and Electric Vehicle Range Researchers at the National Renewable Energy Laboratory (NREL) are providing new insights into the relationships between the climate-control systems of plug-in electric vehicles and the distances these vehicles can travel on a single charge. In particular, NREL research has determined that "preconditioning" a vehicle- achieving a comfortable cabin temperature and preheating or precooling the battery while the vehicle is still plugged in-can extend its driving range and improve battery life over the long term. One of the most significant barriers to widespread deployment of electric vehicles is range anxiety-a driver's uncertainty about the vehicle's ability to reach a destination before fully

165

Damped quantum harmonic oscillator  

E-Print Network (OSTI)

In the framework of the Lindblad theory for open quantum systems the damping of the harmonic oscillator is studied. A generalization of the fundamental constraints on quantum mechanical diffusion coefficients which appear in the master equation for the damped quantum oscillator is presented; the Schr\\"odinger and Heisenberg representations of the Lindblad equation are given explicitly. On the basis of these representations it is shown that various master equations for the damped quantum oscillator used in the literature are particular cases of the Lindblad equation and that the majority of these equations are not satisfying the constraints on quantum mechanical diffusion coefficients. Analytical expressions for the first two moments of coordinate and momentum are also obtained by using the characteristic function of the Lindblad master equation. The master equation is transformed into Fokker-Planck equations for quasiprobability distributions. A comparative study is made for the Glauber $P$ representation, the antinormal ordering $Q$ representation and the Wigner $W$ representation. It is proven that the variances for the damped harmonic oscillator found with these representations are the same. By solving the Fokker-Planck equations in the steady state, it is shown that the quasiprobability distributions are two-dimensional Gaussians with widths determined by the diffusion coefficients. The density matrix is represented via a generating function, which is obtained by solving a time-dependent linear partial differential equation derived from the master equation. Illustrative examples for specific initial conditions of the density matrix are provided.

A. Isar; A. Sandulescu

2006-02-17T23:59:59.000Z

166

Forward-to-backward asymmetry of the (?,n) reaction in the energy range 2030 MeV  

Science Journals Connector (OSTI)

The forward-to-backward asymmetry of neutrons emitted in the (?,n) reactions on Pbnat and Cdnat targets was measured for photons in the range of 2030 MeV, where the isovector quadrupole giant resonance is expected to lie. The asymmetry was observed to increase from small values (?0.2) to large ones (?0.6 and 0.8) for Cdnat and Pbnat, respectively. This phenomenon is interpreted as the interference between E1 and E2 amplitudes. From an analysis of the asymmetry the excitation energies of the E2 isovector resonances were estimated to be 23.51.5 MeV and 26.51.5 MeV for the Pb and Cd nuclei, respectively. The E2 isovector resonances are found to be considerably wider than the E1 resonances.

T. Murakami; I. Halpern; D. W. Storm; P. T. Debevec; L. J. Morford; S. A. Wender; D. H. Dowell

1987-02-01T23:59:59.000Z

167

Differential cross sections for low-energy elastic electron scattering from tetrahydrofuran in the angular range 20180  

Science Journals Connector (OSTI)

Absolute differential cross sections have been measured for elastic electron scattering from tetrahydrofuran in the electron impact energy from 6to20eV and in a wide scattering angle range from 20 to 180. In the measurements the magnetic-angle-changing technique has been employed to detect the backward scattering of electrons. The integral and momentum transfer cross sections for elastic scattering have been also determined through integration of the measured differential cross sections. A detailed comparison of the obtained differential cross sections has been made with the results of very recent theoretical calculations. In the measurements attention has been paid to observe negative-ion resonances predicted in these theoretical calculations.

Marcin Dampc; Aleksandar R. Milosavljevi?; Ireneusz Linert; Bratislav P. Marinkovi?; Mariusz Zubek

2007-04-18T23:59:59.000Z

168

Study of CS/sub 2/ in the 3--10 eV energy range by electron energy loss spectroscopy  

SciTech Connect

Electron impact energy loss spectra are obtained in CS/sub 2/ in the energy loss range of 3--10 eV with high and medium energy resolution. Measurements have been performed at various incident electron energies (approx.10--100eV) and scattering angles (4/sup 0/--90/sup 0/). The high energy resolution (approx.25 meV) has made possible the detailed analysis of the vibrational progressions and Rydberg series, and some identifications are supported by the plots of the differential cross sections of the studied transitions. New bands are evidenced in the region of the low-lying states 3--5 eV and classifications are proposed. The features appearing between 6.5 and 10 eV are classified into ten Rydberg series converging to the X /sup 2/Pi/sub g/ ground state of CS/sup +//sub 2/, and assignments are proposed for most of them. New triplet features are also evidenced around 6.6 eV, while the triplet character proposed by Greening and King for some transitions is not confirmed.

Hubin-Franskin, M.; Delwiche, J.; Poulin, A.; Leclerc, B.; Roy, P.; Roy, D.

1983-02-01T23:59:59.000Z

169

ENERGY-OPTIMISED CODED MODULATION FOR SHORT-RANGE WIRELESS COMMUNICATIONS ON NAKAGAMI-m FADING CHANNELS  

E-Print Network (OSTI)

of a transmission scheme which takes into account total energy consumption instead of transmission energy alone scheme which takes into account total energy consumption instead of transmission energy alone of a wireless communication link is sufficiently short, circuit energy consumption and transmission energy con

?ien, Geir E.

170

Building Energy Simulation Test for Existing Homes (BESTEST-EX): Instructions for Implementing the Test Procedure, Calibration Test Reference Results, and Example Acceptance-Range Criteria  

SciTech Connect

This publication summarizes building energy simulation test for existing homes (BESTEST-EX): instructions for implementing the test procedure, calibration tests reference results, and example acceptance-range criteria.

Judkoff, R.; Polly, B.; Bianchi, M.; Neymark, J.; Kennedy, M.

2011-08-01T23:59:59.000Z

171

State Primary Standard of the Unit of Energy Flux of an Electromagnetic Field in the Range 0.378 GHz  

Science Journals Connector (OSTI)

We report the results of studies of the new measurement standards GT 160-00. The primary standard ... to reproduce and transfer the size of the unit of electromagnetic energy flux in the frequency range 0.3...

S. A. Kolotygin; V. A. Tishchenko; L. N. Bryanskii

2000-12-01T23:59:59.000Z

172

High energy second-harmonic generation of Nd:glass laser radiation with large aperture CsLiB6O10 crystals  

Science Journals Connector (OSTI)

We have demonstrated the generation of a high-energy green laser pulse using large aperture CsLiB6O10 (CLBO) crystals for the first time to our knowledge. A pulsed energy of 25 J at...

Kiriyama, Hiromitsu; Inoue, Norihiro; Yamakawa, Koichi

2002-01-01T23:59:59.000Z

173

Building Energy Simulation Test for Existing Homes (BESTEST-EX): Instructions for Implementing the Test Procedure, Calibration Test Reference Results, and Example Acceptance-Range Criteria  

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

Building Energy Simulation Test for Building Energy Simulation Test for Existing Homes (BESTEST-EX): Instructions for Implementing the Test Procedure, Calibration Test Reference Results, and Example Acceptance-Range Criteria Ron Judkoff, Ben Polly, and Marcus Bianchi National Renewable Energy Laboratory Joel Neymark J. Neymark & Associates Mike Kennedy Mike D. Kennedy, Inc. Link to Accompanying Zipped Data Files (3.9 MB) This document is intended for use with the following documents: Building Energy Simulation Test for Existing Homes (BESTEST-EX), NREL/TP-550-47427 Example Procedures for Developing Acceptance-Range Criteria for BESTEST-EX, NREL/TP-550-47502 Technical Report NREL/TP-5500-52414 August 2011 NREL is a national laboratory of the U.S. Department of Energy, Office of Energy

174

Echo-Enabled Harmonic Generation  

SciTech Connect

A recently proposed concept of the Echo-Enabled Harmonic Generation (EEHG) FEL uses two laser modulators in combination with two dispersion sections to generate a high-harmonic density modulation in a relativistic beam. This seeding technique holds promise of a one-stage soft x-ray FEL that radiates not only transversely but also longitudinally coherent pulses. Currently, an experimental verification of the concept is being conducted at the SLAC National Accelerator Laboratory aimed at the demonstration of the EEHG.

Stupakov, Gennady

2010-08-25T23:59:59.000Z

175

Echo-Enabled Harmonic Generation  

SciTech Connect

A recently proposed concept of the Echo-Enabled Harmonic Generation (EEHG) FEL uses two laser modulators in combination with two dispersion sections to generate a high-harmonic density modulation in a relativistic beam. This seeding technique holds promise of a one-stage soft x-ray FEL that radiates not only transversely but also longitudinally coherent pulses. Currently, an experimental verification of the concept is being conducted at the SLAC National Accelerator Laboratory aimed at the demonstration of the EEHG.

Stupakov, Gennady; /SLAC

2012-06-28T23:59:59.000Z

176

Harmonizing Global Metrics for Data Center Efficiency  

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

Page 1 Page 1 Harmonizing Global Metrics for Data Center Energy Efficiency Global Taskforce Reaches Agreement on Measurement Protocols for PUE - Continues Discussion of Additional Energy Efficiency Metrics February 28th, 2011 The data center has become an increasingly important part of most business operations in the twenty-first century. With escalating demand and rising energy prices, it is essential for the owners and operators of these mission critical facilities to assess and improve their performance with energy efficiency metrics. However, even with the global presence of many companies, these metrics are often not applied consistently at a global level. To address these inconsistencies, a group of global leaders has been meeting regularly to agree

177

Variational Calculation with Harmonic-Oscillator Eigenfunctions  

Science Journals Connector (OSTI)

Variational calculations play an important role in quantum mechanics particularly in determining the ground-state energy of physical systems. Didactic examples in which one can see how the exact energy and wave function are approached by using a family of trial functions are not very numerous. An example was given in a recent book [M. Moshinsky The Harmonic Oscillator in Modern Physics: From Atoms to Quarks (Gordon and Breach New York 1969)] which discusses the ground state of the hydrogen atom using as trial wave function a linear combination of harmonic-oscillator states. In the present paper we carry out a similar analysis for the ground state of a particle of mass m in a three-dimensional square-well potential. We discuss not only the approach to the exact energy when we vary the frequency and the number of oscillator states but also analyze the overlap of the exact and variational wave functions and compare the exact and approximate form factors.

V. C. Aguilera-Navarro; R. M. Mndez V.

1971-01-01T23:59:59.000Z

178

Europium resonance parameters from neutron capture and transmission measurements in the energy range 0.01200 eV  

E-Print Network (OSTI)

Europium resonance parameters from neutron capture and transmission measurements in the energy University. The current measure- ment has better energy resolution and updated analysis methods. Other-yield tail at the high end of the fission fragment mass distribution. Measure- ments have been made

Danon, Yaron

179

Time-Symmetric Discretization of The Harmonic Oscillator  

SciTech Connect

We explicitly and analytically demonstrate that simple time-symmetric discretization of the harmonic oscillator (used as a simple model of a discrete dynamical system), leads to discrete equations of motion whose solutions are perfectly stable at all time scales, and whose energy is exactly conserved. This result is important for both fundamental discrete physics, as well as for numerical analysis and simulation.

Antippa, Adel F. [Departement de Physique Universite du Quebec a Trois-Rivieres Trois-Rivieres, Quebec, G9A 5H7 (Canada); Dubois, Daniel M. [Centre for Hyperincursion and Anticipation in Ordered Systems, CHAOS asbl, Institute of Mathematics, B37, University of Liege Grande Traverse 12, B-4000 LIEGE 1 (Belgium)

2010-11-24T23:59:59.000Z

180

-okfl ^ ORNL/CON-172 Linear Harmonic Analysis of Free-  

E-Print Network (OSTI)

Stirling Engines N. C. J. Chen F. P. Griffin OPERATED BY MARTIN MARIETTA ENERGY SYSTEMS, INC/dynamic problem that is associated with a free-piston Stirling engine (FPSE). The governing equations. #12;ORNL/CON-172 Engineering Technology Division* LINEAR HARMONIC ANALYSIS OF FREE-PISTON STIRLING

Oak Ridge National Laboratory

Note: This page contains sample records for the topic "harmonics energy range" 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

Critical coupling and coherent perfect absorption for ranges of energies due to a complex gain and loss symmetric system  

E-Print Network (OSTI)

We consider a non-Hermitian medium with a gain and loss symmetric, exponentially damped potential distribution to demonstrate different scattering features analytically. The condition for critical coupling (CC) for unidirectional wave and coherent perfect absorption (CPA) for bidirectional waves are obtained analytically for this system. The energy points at which total absorption occurs are shown to be the spectral singular points for the time reversed system. The possible energies at which CC occurs for left and right incidence are different. We further obtain periodic intervals with increasing periodicity of energy for CC and CPA to occur in this system.

Mohammad Hasan; Ananya Ghatak; Bhabani Prasad Mandal

2014-03-03T23:59:59.000Z

182

Delayed Light Studies on Photosynthetic Energy Conversion VI. Effects of Phosphorylation Inhibitors on Delayed Light in the Millisecond Time Range  

Science Journals Connector (OSTI)

The delayed light which ARNOLD and STREHLER found in 1951 ... being recognized as a reliable measure of photosynthetic energy storage between loss of excitation from the ... NORRIS 1963) and production of chemica...

R. Wells; W. Bertsch; W. Cohen

1972-01-01T23:59:59.000Z

183

Hybrid Fast-Ramping Accelerator to 750 GeV/c: Refinement and Parameters over Full Energy Range  

SciTech Connect

Starting with the lattice design specified in [Garren and Berg, MAP-doc-4307, 2011], we refine parameters to get precise dispersion suppression in the straight sections and eliminate beta beating in the arcs. We then compute ramped magnet fields over the entire momentum range of 375 GeV/c to 750 GeV/c, and fit them to a polynomial in the momentum. We compute the time of flight and frequency slip factor over the entire momentum range, and discuss the consequences for longitudinal dynamics.

Berg J. S.; Garren, A. A.

2012-03-02T23:59:59.000Z

184

Measurement of the x-ray mass attenuation coefficients of gold in the 38?50-keV energy range  

SciTech Connect

We used synchrotron x rays to measure the x-ray mass attenuation coefficients of gold at nine energies from 38 to 50 keV with accuracies of 0.1%. Our results are much more accurate than previous measurements in this energy range. A comparison of our measurements with calculated mass attenuation coefficients shows that our measurements fall almost exactly midway between the XCOM and FFAST calculated theoretical values, which differ from one another in this energy region by about 4%, even though the range includes no absorption edge. The consistency and accuracy of these measurements open the way to investigations of the x-ray attenuation in the region of the L absorption edge of gold.

Islam, M.T.; Rae, N.A.; Glover, J.L.; Barnea, Z.; de Jonge, M.D.; Tran, C.Q.; Wang, J.; Chantler, C.T. (Melbourne)

2010-11-12T23:59:59.000Z

185

Life Cycle Greenhouse Gas Emissions of Nuclear Electricity Generation: Systematic Review and Harmonization  

SciTech Connect

A systematic review and harmonization of life cycle assessment (LCA) literature of nuclear electricity generation technologies was performed to determine causes of and, where possible, reduce variability in estimates of life cycle greenhouse gas (GHG) emissions to clarify the state of knowledge and inform decision making. LCA literature indicates that life cycle GHG emissions from nuclear power are a fraction of traditional fossil sources, but the conditions and assumptions under which nuclear power are deployed can have a significant impact on the magnitude of life cycle GHG emissions relative to renewable technologies. Screening 274 references yielded 27 that reported 99 independent estimates of life cycle GHG emissions from light water reactors (LWRs). The published median, interquartile range (IQR), and range for the pool of LWR life cycle GHG emission estimates were 13, 23, and 220 grams of carbon dioxide equivalent per kilowatt-hour (g CO{sub 2}-eq/kWh), respectively. After harmonizing methods to use consistent gross system boundaries and values for several important system parameters, the same statistics were 12, 17, and 110 g CO{sub 2}-eq/kWh, respectively. Harmonization (especially of performance characteristics) clarifies the estimation of central tendency and variability. To explain the remaining variability, several additional, highly influential consequential factors were examined using other methods. These factors included the primary source energy mix, uranium ore grade, and the selected LCA method. For example, a scenario analysis of future global nuclear development examined the effects of a decreasing global uranium market-average ore grade on life cycle GHG emissions. Depending on conditions, median life cycle GHG emissions could be 9 to 110 g CO{sub 2}-eq/kWh by 2050.

Warner, E. S.; Heath, G. A.

2012-04-01T23:59:59.000Z

186

Harmonic inversion analysis of exceptional points in resonance spectra  

E-Print Network (OSTI)

The spectra of, e.g. open quantum systems are typically given as the superposition of resonances with a Lorentzian line shape, where each resonance is related to a simple pole in the complex energy domain. However, at exceptional points two or more resonances are degenerate and the resulting non-Lorentzian line shapes are related to higher order poles in the complex energy domain. In the Fourier-transform time domain an $n$-th order exceptional point is characterised by a non-exponentially decaying time signal given as the product of an exponential function and a polynomial of degree $n-1$. The complex positions and amplitudes of the non-degenerate resonances can be determined with high accuracy by application of the nonlinear harmonic inversion method to the real-valued resonance spectra. We extend the harmonic inversion method to include the analysis of exceptional points. The technique yields, in the energy domain, the amplitudes of the higher order poles contributing to the spectra, and, in the time domain, the coefficients of the polynomial characterising the non-exponential decay of the time signal. The extended harmonic inversion method is demonstrated on two examples, viz. the analysis of exceptional points in resonance spectra of the hydrogen atom in crossed magnetic and electric fields, and an exceptional point occurring in the dynamics of a single particle in a time-dependent harmonic trap.

Jacob Fuchs; Jrg Main; Holger Cartarius; Gnter Wunner

2014-02-17T23:59:59.000Z

187

Harmonic generation with temporally focused ultrashort pulses  

E-Print Network (OSTI)

Harmonic generation with temporally focused ultrashort pulses Dan Oron and Yaron Silberberg of harmonic generation with temporally focused ultrashort pulses are explored both theoreti- cally and experimentally. Analyzing the phase-matching conditions for harmonic generation we find a corre- spondence

Silberberg, Yaron

188

Cross sections for neutron-deuteron elastic scattering in the energy range 135-250 MeV  

E-Print Network (OSTI)

We report new measurements of the neutron-deuteron elastic scattering cross section at energies from 135 to 250 MeV and center-of-mass angles from $80^\\circ$ to $130^\\circ$. Cross sections for neutron-proton elastic scattering were also measured with the same experimental setup for normalization purposes. Our $nd$ cross section results are compared with predictions based on Faddeev calculations including three-nucleon forces, and with cross sections measured with charged particle and neutron beams at comparable energies.

E. Ertan; T. Akdogan; M. B. Chtangeev; W. A. Franklin; P. A. M. Gram; M. A. Kovash; J. L. Matthews; M. Yuly

2012-11-22T23:59:59.000Z

189

Systematic Review and Harmonization of Life Cycle GHG Emission Estimates for Electricity Generation Technologies (Presentation)  

SciTech Connect

This powerpoint presentation to be presented at the World Renewable Energy Forum on May 14, 2012, in Denver, CO, discusses systematic review and harmonization of life cycle GHG emission estimates for electricity generation technologies.

Heath, G.

2012-06-01T23:59:59.000Z

190

Cross sections for neutron-deuteron elastic scattering in the energy range 135250 MeV  

E-Print Network (OSTI)

We report new measurements of the neutron-deuteron elastic scattering cross section at energies from 135 to 250 MeV and center-of-mass angles from 80[degrees] to 130[degrees]. Cross sections for neutron-proton elastic ...

Ertan, E.

191

Mean ranges and energy-loss of 86Kr in aluminium, and 238U in hostaphan polymer, by a nuclear track technique  

Science Journals Connector (OSTI)

CR-39 track detectors have been used to measure mean ranges and energy-loss of 17.7 MeV amu-186Kr in aluminium, and 16.34 MeV amu-1238U in Hostaphan. The nuclear track technique employed in this work has been described in brief. The accuracy of measurement has been evaluated and is presented in this paper. Experimental range data are compared with theoretical values obtained from four different sources. The significance and scope of the work is discussed.

Atul Saxena; K.K. Dwivedi

1990-01-01T23:59:59.000Z

192

Energy transfer from rare gases to surfaces: Collisions with gold and platinum in the range 14000 eV  

Science Journals Connector (OSTI)

We have measured the energy transferred to a gold surface by impinging He+, Ar+, and Xe+ ions with kinetic energies in the range 54000 eV. This same quantity has been determined for He, Ar, and Xe atoms colliding with a Pt(111) surface. The ion studies employed a novel highly sensitive pyroelectric calorimeter together with a carefully designed compact ion gun. Pulses of nearly monoenergetic ions from the gun were directed at a gold film evaporated directly onto a pyroelectric material that develops a voltage proportional to the energy deposited. The atomic studies were made with supersonic beam techniques, whereby energy transfer is inferred from time-of-flight distributions of the incident and scattered species. The results from these very different experiments are in good agreement and give a fairly complete picture of energy transfer from incident rare-gas atoms and ions to these heavy-metal surfaces. For energies above about 10 eV, the ions transfer at least 60% of their energy, with Xe transferring the most and He the least. For lower incident energies, the energy transfer decreases, approaching zero-energy intercepts of ?60%, 20%, and 5% for Xe, Ar, and He, respectively. The implications of these experimental results for the effective-mass concept, the binary-collision model, low-energy stopping powers, lattice penetration, and the theory of physical sputtering are considered, and we address the relevance of these findings to the technologically important processes of plasma etching and deposition of sputtered thin films and to particle-spacecraft interactions and controlled thermonuclear fusion.

Harold F. Winters; H. Coufal; C. T. Rettner; D. S. Bethune

1990-04-01T23:59:59.000Z

193

Reduction in the intensity of solar X-ray emission in the 2- to 15-keV photon energy range and heating of the solar corona  

SciTech Connect

The time profiles of the energy spectra of low-intensity flares and the structure of the thermal background of the soft X-ray component of solar corona emission over the period of January-February, 2003, are investigated using the data of the RHESSI project. A reduction in the intensity of X-ray emission of the solar flares and the corona thermal background in the 2- to 15-keV photon energy range is revealed. The RHESSI data are compared with the data from the Interball-Geotail project. A new mechanism of solar corona heating is proposed on the basis of the results obtained.

Mirzoeva, I. K., E-mail: colombo2006@mail.ru [Russian Academy of Sciences, Space Research Institute (Russian Federation)

2013-04-15T23:59:59.000Z

194

Lateral distribution of Cherenkov light in extensive air showers at high mountain altitude produced by different primary particles in wide energy range  

E-Print Network (OSTI)

The general aim of this work is to obtain the lateral distribution of atmospheric Cherenkov light in extensive air showers produced by different primary particles precisely by. protons, Helium, Iron, Oxygen, Carbon, Nitrogen, Calcium, Silicon and gamma quanta in wide energy range at high mountain observation level of Chacaltaya cosmic ray station. The simulations are divided generally in two energy ranges 10GeV-10 TeV and 10 TeV-10 PeV. One large detector has been used for simulations, the aim being to reduce the statistical fluctuations of the obtained characteristics. The shape of the obtained lateral distributions of Cherenkov light in extensive air showers is discussed and the scientific potential for solution of different problems as well.

A. Mishev; J. Stamenov

2005-12-16T23:59:59.000Z

195

Study of the process e+e???? in the center-of-mass energy range 1.072.00GeV  

Science Journals Connector (OSTI)

The e+e???? cross section has been measured in the center-of-mass energy range 1.072.00GeV using the decay mode ??3?0, ?0???. The analysis is based on 36??pb?1 of integrated luminosity collected with the SND detector at the VEPP-2000 e+e? collider. The measured cross section of about 40pb at 1.5GeV is explained by decays of the ?(1450) and ?(1680) resonances.

M.?N. Achasov et al.

2014-08-01T23:59:59.000Z

196

Carbon sequestration by Miscanthus energy crops plantations in a broad range semi-arid marginal land in China  

Science Journals Connector (OSTI)

Abstract Carbon sequestration is an essential ecosystem service that second-generation energy crops can provide. To evaluate the ability of carbon sequestration of Miscanthus energy crops in the Loess Plateau of China, the yield and soil organic carbon (SOC) changes were measured for three Miscanthus species in the experimental field in Qingyang of the Gansu Province (QG). With the highest yield of the three species, Miscanthus lutarioriparius contributed to the largest increase of SOC, 0.57tha?1yr?1, comparing to the field left unplanted. Through modeling M. lutarioriparius yield across the Loess Plateau, an average increase of SOC was estimated at 0.46tha?1yr?1 for the entire region. Based on the measurements of SOC mineralization under various temperatures and moistures for soil samples taken from QG, a model was developed for estimating SOC mineralization rates across the Loess Plateau and resulted in an average of 1.11tha?1yr?1. Combining the estimates from these models, the average of net carbon sequestration was calculated at a rate of 9.13tha?1yr?1 in the Loess Plateau. These results suggested that the domestication and production of M. lutarioriparius hold a great potential for carbon sequestration and soil restoration in this heavily eroded region.

Jia Mi; Wei Liu; Wenhui Yang; Juan Yan; Jianqiang Li; Tao Sang

2014-01-01T23:59:59.000Z

197

Using a DFIG based wind turbine for grid current harmonics filtering  

Science Journals Connector (OSTI)

Abstract In this paper a variable speed doubly fed induction generator (DFIG) based wind energy conversion system (WECS) is employed for simultaneous power generation and grid harmonic current filtering. WECS active and reactive powers are controlled using vector control strategy. An improved harmonic isolator in the time domain, based on a new high selective signal detector or filter (HSF) has been used. Since the polluting currents contain direct and reverse harmonics of (6k1) order, the HSF can be used to isolate one particular harmonic or the whole harmonic components. The compensation technique of the whole harmonic components of the grid current is chosen. The rotor side converter (RSC) control structure has been modified in order to include the filtering task. Simulation for a 3MW WECS with DFIG at two different wind speeds (8m/s and 12m/s) has been performed. Results showed that in addition to power generation, grid current harmonics filtering action is achieved by the WECS and a decrease by 4% of the total harmonic distortion is obtained.

M. Kesraoui; A. Chaib; A. Meziane; A. Boulezaz

2014-01-01T23:59:59.000Z

198

Learning to Apply Metrology Principles to the Measurement of X-ray Intensities in the 500 eV to 110 keV Energy Range  

SciTech Connect

National Security Technologies, LLC (NSTec), Livermore Operations, has two optical radiation calibration laboratories accredited by the National Voluntary Laboratories Accreditation Program (NVLAP) which is the accrediting body of the National Institute of Standards and Technology (NIST), and is now working towards accreditation for its X-ray laboratories. NSTec operates several laboratories with X-ray sources that generate X-rays in the energy range from 50 eV to 115 keV. These X-ray sources are used to characterize and calibrate diagnostics and diagnostic components used by the various national laboratories, particularly for plasma analysis on the Lawrence Livermore National Laboratory (LLNL) National Ignition Facility (NIF). Because X-ray photon flux measurement methods that can be accredited, i.e., traceable to NIST, have not been developed for sources operating in these energy ranges, NSTec, NIST, and the National Voluntary Accreditation Program (NVLAP) together have defined a path toward the development and validation of accredited metrology methods for X-ray energies. The methodology developed for the high energy X-ray (HEX) Laboratory was NSTecs starting point for X-ray metrology accreditation and will be the basis for the accredited processes in the other X-ray laboratories. This paper will serve as a teaching tool, by way of this example using the NSTec X-ray sources, for the process and methods used in developing an accredited traceable metrology.

Haugh, M. J.; Pond, T.; Silbernagel, C.; Torres, P.; Marlett, K.; Goldin, F.; Cyr, S.

2011-02-08T23:59:59.000Z

199

New measurements and quantitative analysis of electron backscattering in the energy range of neutron {beta}-decay  

SciTech Connect

We report on the first detailed measurements of electron backscattering from plastic scintillator targets, extending our previous work on beryllium and silicon targets. The scintillator experiment posed several additional experimental challenges associated with charging of the scintillator target, and those challenges are addressed in detail. In addition, we quantitatively compare the energy and angular distributions of this data, and our previous data, with electron transport simulations based on the GEANT4 and PENELOPE Monte Carlo simulation codes. The PENELOPE simulation is found globally to give a superior description of the data. Such information is crucial for a broad array of weak-interaction physics experiments, where electron backscattering can give rise to the dominant detector-related systematic uncertainty.

Martin, J.W. [W.K. Kellogg Radiation Laboratory, California Institute of Technology, Pasadena, California 91125 (United States); Physics Department, University of Winnipeg, Winnipeg, Manitoba, R3B 2E9 (Canada); Yuan, J.; Betancourt, M.J.; Filippone, B.W.; Ito, T.M.; Plaster, B. [W.K. Kellogg Radiation Laboratory, California Institute of Technology, Pasadena, California 91125 (United States); Hoedl, S.A. [CENPA, University of Washington, Seattle, Washington 98195 (United States); Young, A.R. [North Carolina State University, Raleigh, North Carolina 27695 (United States)

2006-01-15T23:59:59.000Z

200

Generation of harmonics and supercontinuum in nematic liquid crystals  

SciTech Connect

Nonlinear optical properties of nematic liquid crystals (NLC) have been investigated. A technique for efficient laser frequency conversion in a microscopic NLC volume deposited on an optical fibre end face is experimentally demonstrated. An efficient design of a compact NLC-based IR frequency converter with a fibre input and achromatic collimator is proposed and implemented. Simultaneous generation of the second and third harmonics is obtained for the first time under pumping NLC by a 1.56-mm femtosecond fibre laser. The second-harmonic generation efficiency is measured to be about 1 %, while the efficiency of third-harmonic generation is several tenths of percent. A strong polarisation dependence of the third-harmonic generation efficiency is revealed. When pumping NLC by a cw laser, generation of spectral supercontinua (covering the visible and near-IR spectral ranges) is observed. The nonlinear effects revealed can be due to the light-induced change in the orientational order in liquid crystals, which breaks the initial symmetry and leads to formation of disclination structures. The NLC optical nonlinearity is believed to be of mixed orientationalelectronic nature as a whole. (laser optics 2012)

Nyushkov, B N; Trashkeev, S I; Klementyev, Vasilii M; Pivtsov, V S; Kobtsev, Sergey M

2013-02-28T23:59:59.000Z

Note: This page contains sample records for the topic "harmonics energy range" from the National Library of EnergyBeta (NLEBeta).
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201

Charge-Exchange Collisions Between Hydrogen Ions and Cesium Vapor in the Energy Range 0.5-20 keV  

Science Journals Connector (OSTI)

Charge-exchange collisions have been studied when H+ ions and ground state H0 atoms are incident on Cs vapor. Measurements of the positive, neutral, and negative beam components after passage through the target were made as a function of the Cs target thickness at several energies between 0.5 and 20 keV. All three beam components were found to approach charge equilibrium monotonically. The maximum H- equilibrium yield is (21 4)%, which occurs at an H+ energy of 0.75 keV. The H- yield decreases with increasing energy, and is 0.4% at 20 keV. At energies below 4 keV the H+ equilibrium yield is very small compared with the yield of H0 and H-. For energies greater than 10 kev the H- equilibrium yield is very small compared with the yield of H0 and H+. The cross sections ?+0, ?+-, ?0+, and ?0- were measured. The subscripts + and - refer to the H+ and H- ions, 0 as an initial subscript refers to a ground-state H0 atom, and 0 as a final subscript refers to an H0 atom in the particular states produced. The cross section ?+0 decreases with increasing energy, and ranges from (9.4 2.0) 10-15 cm2 at 1 keV to (7.5 1.1) 10-16 cm2 at 15 keV. The cross section ?+- decreases with increasing energy in the range 2-15 keV, and has the value (2.1 0.6) 10-17 cm2 at 5 keV. The cross section ?0+ increases with increasing energy, having the value (1.2 0.2) 10-17 cm2 at 2 keV, and (1.74 0.26) 10-16 cm2 at 15 keV. The cross section ?0- decreases with increasing energy, having the value (1.5 0.3) 10-16 cm2 at 2 keV and (1.4 0.2) 10-17 cm2 at 15 keV.

A. S. Schlachter; P. J. Bjorkholm; D. H. Loyd; L. W. Anderson; W. Haeberli

1969-01-05T23:59:59.000Z

202

Angular distribution of thick-target bremsstrahlung produced by electrons with initial energies ranging from 10 to 20 keV incident on Ag  

Science Journals Connector (OSTI)

Experimental results are presented comparing the intensities of the bremsstrahlung produced by electrons with initial energies ranging from 10 to 20 keV incident on a thick Ag target, measured at forward angles in the range of 0 to 55. When the data are corrected for attenuation due to photon absorption within the target, the results indicate that the detected radiation is distributed anisotropically only at photon energies k that are approximately equal to the initial energy of the incident electrons E0. The results of our experiments suggest that, as k/E0 ? 0, the detected radiation essentially becomes isotropic due primarily to the scattering of electrons within the target. A comparison to the theory of Kissel et al. [At. Data Nucl. Data Tables 28, 381 (1983)] suggests that the angular distribution of bremsstrahlung emitted by electrons incident on thick targets is similar to the angular distribution of bremsstrahlung emitted by electrons incident on free-atom targets only when k/E0 ? 1. The experimental data also are in approximate agreement with the angular distribution predictions of the Monte Carlo program penelope.

D. Gonzales; B. Cavness; S. Williams

2011-11-29T23:59:59.000Z

203

Neutron Radiative Capture Cross Section of {sup 232}Th in the Energy Range from 0.06 to 2 MeV  

SciTech Connect

The neutron capture cross section of {sup 232}Th has been measured relative to {sigma}(n, {gamma}) for {sup 197}Au and {sigma}(n,f) for {sup 235}U in the energy range from 60 keV to 2 MeV. Neutrons were produced by the {sup 7}Li(p,n) and T(p,n) reactions at the 4-MV Van de Graaff Accelerator of CEN Bordeaux-Gradignan. The activation technique was used, and the cross section was measured relative to the {sup 197}Au(n,{gamma}) standard cross section up to 1 MeV. The characteristic gamma lines of the product nuclei {sup 233}Pa and {sup 198}Au were measured with a 40% high-purity germanium detector. Above this energy, the reaction {sup 235}U(n,f) was also used as a second standard, and the fission fragments were detected with a photovoltaic cell. The results, after applying the appropriate corrections, indicate that the cross sections are close to the JENDL-3 database values up to 800 keV and over 1.4 MeV. For energies in the intermediate range, our values are slightly lower than those from all the libraries.

Karamanis, D. [CEN Bordeaux-Gradignan (France); Petit, M. [CEN Bordeaux-Gradignan (France); Andriamonje, S. [CEN Bordeaux-Gradignan (France); Barreau, G. [CEN Bordeaux-Gradignan (France); Bercion, M. [CEN Bordeaux-Gradignan (France); Billebaud, A. [ISN Grenoble (France); Blank, B. [CEN Bordeaux-Gradignan (France); Czajkowski, S. [CEN Bordeaux-Gradignan (France); Moral, R. del [CEN Bordeaux-Gradignan (France); Giovinazzo, J. [CEN Bordeaux-Gradignan (France); Lacoste, V. [CERN (Switzerland); Marchand, C. [CEN Bordeaux-Gradignan (France); Perrot, L. [ISN Grenoble (France); Pravikoff, M. [CEN Bordeaux-Gradignan (France); Thomas, J.C. [CEN Bordeaux-Gradignan (France)

2001-11-15T23:59:59.000Z

204

Europium resonance parameters from neutron capture and transmission measurements in the energy range 0.01200eV  

Science Journals Connector (OSTI)

Abstract Europium is a good absorber of neutrons suitable for use as a nuclear reactor control material. It is also a fission product in the low-yield tail at the high end of the fission fragment mass distribution. Measurements have been made of the stable isotopes with natural and enriched samples. The linear electron accelerator center (LINAC) at the Rensselaer Polytechnic Institute (RPI) was used to explore neutron interactions with europium in the energy region from 0.01 to 200eV. Neutron capture and transmission measurements were performed by the time-of-flight technique. Two transmission measurements were performed at flight paths of 15 and 25m with 6Li glass scintillation detectors. The neutron capture measurements were performed at a flight path of 25m with a 16-segment sodium iodide multiplicity detector. Resonance parameters were extracted from the data using the multilevel R-matrix Bayesian code SAMMY. A table of resonance parameters and their uncertainties is presented. To prevent air oxidation metal samples were sealed in airtight aluminum cans in an inert environment. Metal samples of natural europium, 47.8atom% 151Eu, 52.2atom% 153Eu, as well as metal samples enriched to 98.77atom% 153Eu were measured. The measured neutron capture resonance integral for 153Eu is (9.90.4)% larger than ENDF/B-VII.1. The capture resonance integral for 151Eu is (71)% larger than ENDF/B-VII.1. Another significant finding from these measurements was a significant increase in thermal total cross section for 151Eu, up (93)% from ENDF/B-VII.1. The thermal total cross section for 153Eu is down (83)% from ENDF/B-VII.1, but it is larger than that of ENDF/B-VII.0. The resolved resonance region has been extended from 100eV to 200eV for both naturally-occurring isotopes. Uncertainties in resonance parameters have been propagated from a number of experimental quantities using a Bayesian analysis. Uncertainties have also been estimated from fitting each Eu sample measurement individually.

G. Leinweber; D.P. Barry; J.A. Burke; M.J. Rapp; R.C. Block; Y. Danon; J.A. Geuther; F.J. Saglime III

2014-01-01T23:59:59.000Z

205

Modeling of Synergy Between 4th and 6th Harmonic Absorptions of Fast Waves on Injected Beams in DIII-D Tokamak  

SciTech Connect

In recent moderate to high harmonic fast wave heating and current drive experiments in DIII-D, a synergy effect was observed when the 6{sup th} harmonic 90 MHz fast wave power is applied to the plasma preheated by neutral beams and the 4{sup th} harmonic 60 MHz fast wave. In this paper, we investigate how the synergy can occur using ORBIT-RF coupled with AORSA. Preliminary simulations suggest that damping of 4{sup th} harmonic FW on beam ions accelerates them above the injection energy, which may allow significant damping of 6{sup th} harmonic FW on beam ion tails to produce synergy.

Choi, M.; Pinsker, R. I.; Chan, V. S. [General Atomics, P.O. Box 85608, San Diego, California 92186-5608 (United States); Muscatello, C. M. [University of California-Irvine, Irvine, California, 92697 (United States); Jaeger, E. F. [XCEL Engineering Inc., Oak Ridge, Tennessee 37830 (United States)

2011-12-23T23:59:59.000Z

206

Power Quality/Harmonic Detection: Harmonic Control in Electric Power Systems for the Telecommunications Industry  

E-Print Network (OSTI)

The control of harmonics in power systems continues to be a major concern in the telecommunications industry. AC/DC telecommunication conversion equipment has rarely been thought of as playing a major role in the harmonic interaction problem. Yet...

Felkner, L. J.; Waggoner, R. M.

207

Near BPS Skyrmions and Restricted Harmonic Maps  

E-Print Network (OSTI)

Motivated by a class of near BPS Skyrme models introduced by Adam, S\\'anchez-Guill\\'en and Wereszczy\\'nski, the following variant of the harmonic map problem is introduced: a map $\\phi:(M,g)\\rightarrow (N,h)$ between Riemannian manifolds is restricted harmonic (RH) if it locally extremizes $E_2$ on its $SDiff(M)$ orbit, where $SDiff(M)$ denotes the group of volume preserving diffeomorphisms of $(M,g)$, and $E_2$ denotes the Dirichlet energy. It is conjectured that near BPS skyrmions tend to RH maps in the BPS limit. It is shown that $\\phi$ is RH if and only if $\\phi^*h$ has exact divergence, and a linear stability theory of RH maps is developed, whence it follows that all weakly conformal maps, for example, are stable RH. Examples of RH maps in every degree class $R^3\\to SU(2)$ and $R^2\\to S^2$ are constructed. It is shown that the axially symmetric BPS skyrmions on which all previous analytic studies of near BPS Skyrme models have been based, are not RH, so each such field can be deformed along $SDiff(R^3)$ to yield BPS skyrmions with lower $E_2$, casting doubt on the predictions of such studies. The problem of minimizing $E_2$ for $\\phi:R^k\\to N$ over all linear volume preserving diffeomorphisms is solved explicitly, and a deformed axially symmetric family of Skyrme fields constructed which are candidates for approximate near BPS skyrmions at low baryon number. The notion of restricted harmonicity is generalized to restricted $F$-criticality where $F$ is any functional on maps $(M,g)\\to (N,h)$ which is, in a precise sense, geometrically natural. The case where $F$ is a linear combination of $E_2$ and $E_4$, the usual Skyrme term, is studied in detail, and it is shown that inverse stereographic projection $R^3\\to S^3\\equiv SU(2)$ is stable restricted $F$-critical for every such $F$.

J. M. Speight

2014-06-03T23:59:59.000Z

208

Modulation compression for short wavelength harmonic generation  

E-Print Network (OSTI)

Wavelength Harmonic Generation Ji Qiang Lawrence Berkeleyform a basis for fourth generation light source. Currently,e?ciency was proposed for generation of short wavelength

Qiang, J.

2010-01-01T23:59:59.000Z

209

Using Coupled Harmonic Oscillators to Model Some Greenhouse Gas Molecules  

SciTech Connect

Common greenhouse gas molecules SF{sub 6}, NO{sub 2}, CH{sub 4}, and CO{sub 2} are modeled as harmonic oscillators whose potential and kinetic energies are derived. Using the Euler-Lagrange equation, their equations of motion are derived and their phase portraits are plotted. The authors use these data to attempt to explain the lifespan of these gases in the atmosphere.

Go, Clark Kendrick C.; Maquiling, Joel T. [Department of Physics, Ateneo de Manila University, Katipunan Avenue, Quezon City (Philippines)

2010-07-28T23:59:59.000Z

210

Elastic Scattering of {sup 7}Li+{sup 27}Al at Backward Angles in the 7-11 MeV Energy Range for Application in RBS  

SciTech Connect

We have measured elastic excitation functions for the {sup 7}Li+{sup 27}Al system, in an energy range close to its Coulomb barrier (E{sub lab} = 8.4 MeV) in steps of 0.25 MeV. For this purpose, an array of eight surface-barrier detectors was used. To get an insight on the background composition (mainly {alpha} particles), a telescope-detector was used for atomic-number identification. Identical measurements for the {sup 6}Li+{sup 27}Al system are planned for the near future.

Carnelli, P. F. F.; Arazi, A.; Cardona, M. A.; Figueira, J. M.; Hojman, D.; Martinez Heimann, D.; Negri, A. E.; Pacheco, A. J. [Laboratorio TANDAR, CNEA, Av. Gral. Paz 1499, B1650KNA, San Martin, Buenos Aires (Argentina); CONICET, Av. Rivadavia 1917, C1033AAJ, Buenos Aires (Argentina); Abriola, D. [IAEA, NAPC-NDS, Vienna International Centre, PO Box 100, Vienna (Austria); Capurro, O. A.; Fimiani, L.; Grinberg, P.; Marti, G. V. [Laboratorio TANDAR, CNEA, Av. Gral. Paz 1499, B1650KNA, San Martin, Buenos Aires (Argentina); Fernandez Niello, J. O. [Laboratorio TANDAR, CNEA, Av. Gral. Paz 1499, B1650KNA, San Martin, Buenos Aires (Argentina); CONICET, Av. Rivadavia 1917, C1033AAJ, Buenos Aires (Argentina); UNSAM, Campus Miguelete, B1650BWA, San Martin, Buenos Aires (Argentina)

2010-08-04T23:59:59.000Z

211

Measurement of the differential neutron-deuteron scattering cross section in the energy range from 100 keV to 600 keV using a proportional counter  

E-Print Network (OSTI)

The angular distribution of neutron-deuteron scattering was investigated using the proportional counter P2 simultaneously as scattering target and detector for the recoil deuterons. The measurements were carried out using monoenergetic neutrons in the energy range from 150 keV to 500 keV. Various techniques were employed to reduce distortions of the experimental pulse-height distribution by photon-induced events. The experimental data were compared with realistic simulations which were carried out using different evaluated data sets. This comparison allows to conclude on inconsistencies in the evaluations.

Nolte, R; Plompen, A; Rttger, S

2014-01-01T23:59:59.000Z

212

Facilities and techniques for x-ray diagnostic calibration in the 100-eV to 100-keV energy range  

SciTech Connect

The Lawrence Livermore National Laboratory (LLNL) has been a pioneer in the field of x-ray diagnostic calibration for more than 20 years. We have built steady state x-ray sources capable of supplying fluorescent lines of high spectral purity in the 100-eV to 100-keV energy range, and these sources have been used in the calibration of x-ray detectors, mirrors, crystals, filters, and film. This paper discusses our calibration philosophy and techniques, and describes some of our x-ray sources. Examples of actual calibration data are presented as well.

Gaines, J.L.; Wittmayer, F.J.

1986-06-01T23:59:59.000Z

213

Differential elastic electron-scattering cross sections of pyrimidine in the energy range between 20 eV and 1 keV  

Science Journals Connector (OSTI)

Differential elastic electron-scattering cross sections of pyrimidine were absolutely measured for electron energies from 20 eV to 1 keV in the angular range between 5 and 135. The present results agree with the data of other groups within the experimental uncertainties at scattering angles below 75 while considerable differences among the data were found at higher scattering angles. The experimental values were compared to theoretical values calculated using the modified independent-atom model. The theoretical values reproduce the angular dependence of the experimental differential elastic scattering cross sections qualitatively well for electron energies above 60 eV. The sum of the integral elastic scattering cross sections, obtained by the integration of the differential elastic scattering cross sections, and ionization cross sections predicted by the binary-encounter-Bethe model agree with the previously measured total electron-scattering cross sections of pyrimidine to within 8%.

W. Y. Baek; M. U. Bug; H. Rabus

2014-06-24T23:59:59.000Z

214

Modelling and Simulation of a 3kW Residential Photovoltaic for Harmonics Analysis  

Science Journals Connector (OSTI)

Growing concern for environmental issues and advancement in power electronic technology resulted in fast development of energy production using renewable energy resources (RES). These natural resources play an important role on power system generation ... Keywords: renewable energy resources, photovoltaic, inverter, harmonics, THD

Muhyaddin J. H. Rawa; Dave W. P. Thomas; Mark Sumner

2013-04-01T23:59:59.000Z

215

Coherent bremsstrahlung, coherent pair production, birefringence, and polarimetry in the 20170GeV energy range using aligned crystals  

Science Journals Connector (OSTI)

The processes of coherent bremsstrahlung (CB) and coherent pair production (CPP) based on aligned crystal targets have been studied in the energy range 20170GeV. The experimental arrangement allowed for measurements of single photon properties of these phenomena including their polarization dependences. This is significant as the theoretical description of CB and CPP is an area of active debate and development. With the approach used in this paper, both the measured cross sections and polarization observables are predicted very well. This indicates a proper understanding of CB and CPP up to energies of 170GeV. Birefringence in CPP on aligned crystals is applied to determine the polarization parameters in our measurements. New technologies for high-energy photon beam optics including phase plates and polarimeters for linear and circular polarization are demonstrated in this experiment. Coherent bremsstrahlung for the strings-on-strings (SOS) orientation yields a larger enhancement for hard photons than CB for the channeling orientations of the crystal. Our measurements and our calculations indicate low photon polarizations for the high-energy SOS photons.

A. Apyan et al. (NA59 Collaboration)

2008-04-16T23:59:59.000Z

216

Resonant third-harmonic generation of a short-pulse laser from electron-hole plasmas  

SciTech Connect

In semiconductors, free carriers are created in pairs in inter-band transitions and consist of an electron and its corresponding hole. At very high carrier densities, carrier-carrier collisions dominate over carrier-lattice collisions and carriers begin to behave collectively to form plasma. Here, we apply a short-pulse laser to generate third-harmonic radiation from a semiconductor plasma (electron-hole plasma) in the presence of a transverse wiggler magnetic-field. The process of third-harmonic generation of an intense short-pulse laser is resonantly enhanced by the magnetic wiggler, i.e., wiggler magnetic field provides the necessary momentum to third-harmonic photons. In addition, a high-power laser radiation, propagating through a semiconductor imparts an oscillatory velocity to the electrons and exerts a ponderomotive force on electrons at the third-harmonic frequency of the laser. This oscillatory velocity produces a third-harmonic longitudinal current. And due to the beating of the longitudinal electron velocity and the wiggler magnetic field, a transverse third-harmonic current is produced that drives third-harmonic electromagnetic radiation. It is finally observed that for a specific wiggler wave number value, the phase-matching conditions for the process are satisfied, leading to resonant enhancement in the energy conversion efficiency.

Kant, Niti [Department of Physics, Lovely Professional University, Phagwara, Punjab 144 402 (India); Nandan Gupta, Devki [Department of Physics and Astrophysics, University of Delhi, Delhi 110 007 (India); Suk, Hyyong [Advanced Photonics Research Institute (APRI) and Graduate Program of Photonics and Applied Physics, Gwangju Institute of Science and Technology, Gwangju 500 712 (Korea, Republic of)

2012-01-15T23:59:59.000Z

217

HARMONIC CYCLOTRON HEATING IN THE TOROIDAL OCTUPOLE  

E-Print Network (OSTI)

HARMONIC CYCLOTRON HEATING IN THE TOROIDAL OCTUPOLE J. C. Sprott October 1976 Plasma Studies PLP the harmonic cyclotron heating of both electrons and ions. It is well known (see, for example, O. Eldridge Cyclotron Heating o (B - B /3) dV, etc. o Consider first the low density ECRH case in which the electric

Sprott, Julien Clinton

218

Impact of stray capacitance on hvdc harmonics  

SciTech Connect

Recent experience suggests that a new approach is needed to determining harmonic generation from hvdc converters for the purpose of telephone interference evaluation. This paper presents simulation results showing the effect on harmonic generation of stray capacitances inherent to hvdc converters. These simulation results illustrate the basic characteristics of the phenomenon, which agree qualitatively with field experience.

Larsen, E.V.; Sublich, M.; Kapoor, S.C.

1989-01-01T23:59:59.000Z

219

Current Generated Harmonics and Their Effect Upon Electrical Industrial Systems  

E-Print Network (OSTI)

This paper provides a general overview of harmonics and addresses the causes of current generated harmonics in electrical systems. In addition, problems caused by current generated harmonics and their affects upon different types of electrical...

Alexander, H. R.; Rogge, D. S.

220

Total compensation of line-side switching harmonics in converter-fed ac locomotives  

SciTech Connect

PWM controlled line-side converters of modern ac traction locomotives inject harmonic currents into the feeding overhead line. This causes problems of electromagnetic interference. Passive or active filters are usually provided for a partial reduction of the line harmonics. A novel and superior approach employs a switched electronic compensator. It generates an exact replica of the harmonic current, feeding it to the high-voltage transformer to produce a harmonic counter MMF. The transformer main flux is then forced to be sinusoidal, and so is the induced voltage in the primary. The line current, being low-pass filtered by the transformer leakage inductance, assumes a pure sinusoidal waveform. The compensator operates in the low switching frequency range of the main power converters. Its installed power is only 1% of the traction power. Operation, control, and design considerations are described. Results from laboratory tests at full power level are presented.

Krah, J.O.; Holtz, J. [Univ. of Wuppertal (Germany)] [Univ. of Wuppertal (Germany)

1995-11-01T23:59:59.000Z

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221

RANGE DESIGN CRITERIA  

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

RANGE DESIGN CRITERIA RANGE DESIGN CRITERIA U.S. DEPARTMENT OF ENERGY Office of Health, Safety and Security AVAILABLE ONLINE AT: INITIATED BY: http://www.hss.energy.gov Office of Health, Safety and Security Notices This document is intended for the exclusive use of elements of the Department of Energy (DOE), to include the National Nuclear Security Administration, their contractors, and other government agencies/individuals authorized to use DOE facilities. DOE disclaims any and all liability for personal injury or property damage due to use of this document in any context by any organization, group, or individual, other than during official government activities. Local DOE management is responsible for the proper execution of firearms-related programs for

222

Building Technologies Office: Harmonization of Wireless Dimming Lighting  

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

Harmonization of Harmonization of Wireless Dimming Lighting Controls Research Project to someone by E-mail Share Building Technologies Office: Harmonization of Wireless Dimming Lighting Controls Research Project on Facebook Tweet about Building Technologies Office: Harmonization of Wireless Dimming Lighting Controls Research Project on Twitter Bookmark Building Technologies Office: Harmonization of Wireless Dimming Lighting Controls Research Project on Google Bookmark Building Technologies Office: Harmonization of Wireless Dimming Lighting Controls Research Project on Delicious Rank Building Technologies Office: Harmonization of Wireless Dimming Lighting Controls Research Project on Digg Find More places to share Building Technologies Office: Harmonization of Wireless Dimming Lighting Controls Research Project on

223

Calibration of X-ray detectors in the 8 to 115 keV energy range and their application to diagnostics on the National Ignition Facility  

SciTech Connect

The calibration of X-ray diagnostics is of paramount importance to the National Ignition Facility (NIF) at Lawrence Livermore National Laboratory (LLNL). National Security Technologies LLC (NSTec) fills this need by providing a wide variety of calibration and diagnostic development services in support of the ongoing research efforts at NIF. The X-ray source in the High Energy X-ray lab utilizes induced fluorescence in a variety of metal foils to produce a beam of characteristic X rays ranging from 8 to 111 keV. Presented are the methods used for calibrating a High Purity Germanium detector, which has been absolutely calibrated using radioactive check sources, compared against a silicon photodiode calibrated at Physikalisch Technische Bundesanstalt (PTB). Also included is a limited presentation of results from the recent calibration of the upgraded Filter Fluorescer X ray Spectrometer.

J. J. Lee, M. J. Haugh, G. LaCaille, and P. Torres

2012-10-01T23:59:59.000Z

224

A high-fidelity harmonic drive model.  

SciTech Connect

In this paper, a new model of the harmonic drive transmission is presented. The purpose of this work is to better understand the transmission hysteresis behavior while constructing a new type of comprehensive harmonic drive model. The four dominant aspects of harmonic drive behavior - nonlinear viscous friction, nonlinear stiffness, hysteresis, and kinematic error - are all included in the model. The harmonic drive is taken to be a black box, and a dynamometer is used to observe the input/output relations of the transmission. This phenomenological approach does not require any specific knowledge of the internal kinematics. In a novel application, the Maxwell resistive-capacitor hysteresis model is applied to the harmonic drive. In this model, sets of linear stiffness elements in series with Coulomb friction elements are arranged in parallel to capture the hysteresis behavior of the transmission. The causal hysteresis model is combined with nonlinear viscous friction and spectral kinematic error models to accurately represent the harmonic drive behavior. Empirical measurements are presented to quantify all four aspects of the transmission behavior. These measurements motivate the formulation of the complete model. Simulation results are then compared to additional measurements of the harmonic drive performance.

Preissner, C.; Royston, T. J.; Shu, D. (APS Engineering Support Division); ( MCS); (Univ. of Illinois)

2012-01-01T23:59:59.000Z

225

Harmonization of Federal and International Regulations  

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

DOT/PHMSA DOT/PHMSA Update Michael Conroy U.S. Department of Transportation Pipeline and Hazardous Materials Safety Administration Office of Hazardous Materials Safety Radioactive Materials - 2 - HM-230 (1/26/04) Harmonized with 2000 Version of IAEA's 1996 Edition - 3 - Changes to the IAEA Regulations Since 2000 2003 Amendment 2005 Edition 2009 Edition U.S. Department of Transportation Pipeline and Hazardous Materials Safety Administration Harmonization Rulemaking (HM-250) * Harmonize with 2009 Edition of TS-R-1 * Miscellaneous Other Fixes - Update, clarify, correct, or provide relief from certain regulatory requirements * DOT and NRC will both issue rulemakings - DOT NPRM Issued August 12, 2011 - NRC NPRM coming soon

226

Neutron range spectrometer  

DOE Patents (OSTI)

A neutron range spectrometer and method for determining the neutron energy spectrum of a neutron emitting source are disclosed. Neutrons from the source are colliminated along a collimation axis and a position sensitive neutron counter is disposed in the path of the collimated neutron beam. The counter determines positions along the collimation axis of interactions between the neutrons in the neutron beam and a neutron-absorbing material in the counter. From the interaction positions, a computer analyzes the data and determines the neutron energy spectrum of the neutron beam. The counter is preferably shielded and a suitable neutron-absorbing material is He-3. 1 fig.

Manglos, S.H.

1988-03-10T23:59:59.000Z

227

Casimir Friction Force for Moving Harmonic Oscillators  

E-Print Network (OSTI)

Casimir friction is analyzed for a pair of dielectric particles in relative motion. We first adopt a microscopic model for harmonically oscillating particles at finite temperature T moving non-relativistically with constant velocity. We use a statistical-mechanical description where time-dependent correlations are involved. This description is physical and direct, and, in spite of its simplicity, is able to elucidate the essentials of the problem. This treatment elaborates upon, and extends, an earlier theory of ours back in 1992. The energy change Delta E turns out to be finite in general, corresponding to a finite friction force. In the limit of zero temperature the formalism yields, however, Delta E ->0, this being due to our assumption about constant velocity, meaning slowly varying coupling. For couplings varying more rapidly, there will also be a finite friction force at T=0. As second part of our work, we consider the friction problem using time-dependent perturbation theory. The dissipation, basically a second order effect, is obtainable with the use of first order theory, the reason being the absence of cross terms due to uncorrelated phases of eigenstates. The third part of the present paper is to demonstrate explicitly the equivalence of our results with those recently obtained by Barton (2010); this being not a trivial task since the formal results are seemingly quite different from each other.

Johan S. Hye; Iver Brevik

2011-11-21T23:59:59.000Z

228

Non-linear harmonic generation in finite amplitude black hole oscillations  

E-Print Network (OSTI)

The non-linear generation of harmonics in gravitational perturbations of black holes is explored using numerical relativity based on an in-going light-cone framework. Localised, finite, perturbations of an isolated black hole are parametrised by amplitude and angular harmonic form. The response of the black hole spacetime is monitored and its harmonic content analysed to identify the strength of the non-linear generation of harmonics as a function of the initial data amplitude. It is found that overwhelmingly the black hole responds at the harmonic mode perturbed, even for spacetimes with 10% of the black hole mass radiated. The relative efficiencies of down and up-scattering in harmonic space are computed for a range of couplings. Down-scattering, leading to smoothing out of angular structure is found to be equally or more efficient than the up-scatterings that would lead to increased rippling. The details of this non-linear balance may form the quantitative mechanism by which black holes avoid fission even for arbitrary strong distortions.

Philippos Papadopoulos

2001-04-09T23:59:59.000Z

229

Harmonics and inter harmonics estimation of DFIG based standalone wind power system by parametric techniques  

Science Journals Connector (OSTI)

Abstract This paper presents application of parametric techniques (Estimation of signal parameter by rotational invariance techniques (ESPRIT), Root multiple signal classification (Root MUSIC)) for the estimation of harmonics/inter harmonics produced by wind generator under constant, variable rotor speed, load imbalance. Accuracy of estimation by parametric techniques is checked on synthetic signal as well as signal extracted from DFIG based standalone system with constant rotor speed and balanced load condition. Further sliding window concept is applied to parametric techniques to estimate the harmonics/inter harmonics under variable rotor speed and load unbalance. Series of simulation results demonstrate the advantages of the sliding window ESPRIT over sliding window Root MUSIC in the estimation of harmonics and inter harmonics under variable rotor speed as well as load unbalance condition.

Sanjay Agrawal; Soumya R. Mohanty; Vineeta Agarwal

2015-01-01T23:59:59.000Z

230

Harmonizing Systems and Software Cost Estimation  

E-Print Network (OSTI)

The objective of this paper is to examine the gaps and overlaps between software and systems engineering cost models with intent to harmonize the estimates in engineering engineering estimation. In particular, we evaluate ...

Wang, Gan

2009-07-19T23:59:59.000Z

231

Second Harmonic Resonance for Equatorial Waves  

Science Journals Connector (OSTI)

Simple, exact analytical conditions for second harmonic resonance between equatorial waves are derived. Such resonance can occur only between two Rossby waves or two westward travelling gravity waves. It is shown that regardless of whether the ...

John P. Boyd

1983-03-01T23:59:59.000Z

232

Dual aperture dipole magnet with second harmonic component  

DOE Patents (OSTI)

An improved dual aperture dipole electromagnet includes a second-harmonic frequency magnetic guide field winding which surrounds first harmonic frequency magnetic guide field windings associated with each aperture. The second harmonic winding and the first harmonic windings cooperate to produce resultant magnetic waveforms in the apertures which have extended acceleration and shortened reset portions of electromagnet operation.

Praeg, W.F.

1983-08-31T23:59:59.000Z

233

Higher-Order Harmonic Generation from Fullerene by Means of the Plasma Harmonic Method  

SciTech Connect

We demonstrate, for the first time, high-order harmonic generation from C{sub 60} by an intense femtosecond Ti:sapphire laser. Laser-produced plasmas from C{sub 60}-rich epoxy and C{sub 60} films were used as the nonlinear media. Harmonics up to the 19th order were observed. The harmonic yield from fullerene-rich plasma is about 25 times larger compared with those produced from a bulk carbon target. Structural studies of plasma debris confirm the presence and integrity of fullerenes within the plasma plume, indicating fullerenes as the source of high-order harmonics.

Ganeev, R. A. [Institut National de la Recherche Scientifique, Energie, Materiaux et Telecommunications, 1650 Lionel-Boulet, Varennes, Quebec J3X 1S2 (Canada); Scientific Association Akadempribor, Academy of Sciences of Uzbekistan, Akademgorodok, Tashkent 100125 (Uzbekistan); Bom, L. B. Elouga; Abdul-Hadi, J.; Ozaki, T. [Institut National de la Recherche Scientifique, Energie, Materiaux et Telecommunications, 1650 Lionel-Boulet, Varennes, Quebec J3X 1S2 (Canada); Wong, M. C. H.; Brichta, J. P.; Bhardwaj, V. R. [Department of Physics, University of Ottawa, 150 Louis Pasteur, Ottawa, Ontario K1N 6N5 (Canada)

2009-01-09T23:59:59.000Z

234

Operational modal identification of offshore wind turbine structure based on modified stochastic subspace identification method considering harmonic interference  

Science Journals Connector (OSTI)

The structural modal parameter information can be generally obtained from different vibration responses triggered by unknown excitations using the classic modal identification methods which are based on the assumption that the input to the structure is exactly the same or close to the stationary random white noise. For the actual projects such as the offshore wind turbine structure however the imposed loads cannot be considered as the pure white noise excitation because the harmonic components emerge obviously in vibration responses due to periodic rotation excitations of the rotor. When the created harmonic components have greater energy and their frequencies are close to any natural modal frequency of the structure the classic methods can no longer separate harmonic modes from actual structural operational modes under this strong harmonic disturbance thus false modes may be generated and the identification accuracy may be badly affected. To identify the actual structural operational modes accurately under strong harmonic excitation a modified stochastic subspace identification (SSI) method considering harmonic interference called the harmonic modification SSI (HM-SSI) method was proposed in this paper assuming the input harmonic frequencies are known and time-invariant. Then the effectiveness and accuracy of the HM-SSI method were verified through a simple numerical model of cantilever beam excited by various harmonic inputs superimposed on random loads. Besides the superior robustness and better accuracy of identification results affected by the level of noise and the proportion of harmonic energy were reflected. Finally the modal parameter information under different operational conditions was obtained and the safety assessment of an operational wind turbine was made based on the measured data from one offshore wind turbine test prototype at high running speed.

Jijian Lian

2014-01-01T23:59:59.000Z

235

An integrated analytical framework for quantifying the LCOE of waste-to-energy facilities for a range of greenhouse gas emissions policy and technical factors  

SciTech Connect

This study presents a novel integrated method for considering the economics of waste-to-energy (WTE) facilities with priced greenhouse gas (GHG) emissions based upon technical and economic characteristics of the WTE facility, MSW stream, landfill alternative, and GHG emissions policy. The study demonstrates use of the formulation for six different policy scenarios and explores sensitivity of the results to ranges of certain technical parameters as found in existing literature. The study shows that details of the GHG emissions regulations have large impact on the levelized cost of energy (LCOE) of WTE and that GHG regulations can either increase or decrease the LCOE of WTE depending on policy choices regarding biogenic fractions from combusted waste and emissions from landfills. Important policy considerations are the fraction of the carbon emissions that are priced (i.e. all emissions versus only non-biogenic emissions), whether emissions credits are allowed due to reducing fugitive landfill gas emissions, whether biogenic carbon sequestration in landfills is credited against landfill emissions, and the effectiveness of the landfill gas recovery system where waste would otherwise have been buried. The default landfill gas recovery system effectiveness assumed by much of the industry yields GHG offsets that are very close to the direct non-biogenic GHG emissions from a WTE facility, meaning that small changes in the recovery effectiveness cause relatively larger changes in the emissions factor of the WTE facility. Finally, the economics of WTE are dependent on the MSW stream composition, with paper and wood being advantageous, metal and glass being disadvantageous, and plastics, food, and yard waste being either advantageous or disadvantageous depending upon the avoided tipping fee and the GHG emissions price.

Townsend, Aaron K., E-mail: aarontownsend@utexas.edu [Department of Mechanical Engineering, University of Texas at Austin, 1 University Station C2200, Austin, TX 78712 (United States); Webber, Michael E. [Department of Mechanical Engineering, University of Texas at Austin, 1 University Station C2200, Austin, TX 78712 (United States)

2012-07-15T23:59:59.000Z

236

The energy spectrum of cosmic-ray induced neutrons measured on an airplane over a wide range of altitude and latitude  

Science Journals Connector (OSTI)

......radiation dosimetry The energy spectrum of cosmic-ray...Homeland Security, New York, NY 10014, USA 2 Bartol...sensitive extended-energy multisphere neutron...Technical Report EML-595 (New York: US Department of Energy Environmental Measurements......

P. Goldhagen; J. M. Clem; J. W. Wilson

2004-08-01T23:59:59.000Z

237

GyroSol? Harmonic Engine  

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

Efficient * Versatile Charles L. Bennett Physicist, LLNL 17 GyroSol(tm): a "Personal Power Plant" Energy from the sun or burning fuel produces steam Steam provides...

238

North American Energy Ministers Take Further Action on Energy...  

Energy Savers (EERE)

their commitment to further aligning energy-efficiency standards on key consumer products, noting that recent collaborative efforts had resulted in the harmonization of...

239

Advanced properties of extended plasmas for efficient high-order harmonic generation  

SciTech Connect

We demonstrate the advanced properties of extended plasma plumes (5?mm) for efficient harmonic generation of laser radiation compared with the short lengths of plasmas (?0.30.5?mm) used in previous studies. The harmonic conversion efficiency quadratically increased with the growth of plasma length. The studies of this process along the whole extreme ultraviolet range using the long plasma jets produced on various metal surfaces, particularly including the resonance-enhanced laser frequency conversion and two-color pump, are presented. Such plasmas could be used for the quasi-phase matching experiments by proper modulation of the spatial characteristics of extended ablating area and formation of separated plasma jets.

Ganeev, R. A. [Ophthalmology and Advanced Laser Medical Center, Saitama Medical University, Saitama 350-0495 (Japan) [Ophthalmology and Advanced Laser Medical Center, Saitama Medical University, Saitama 350-0495 (Japan); Physics Department, Voronezh State University, Voronezh 394006 (Russian Federation); Suzuki, M.; Kuroda, H. [Ophthalmology and Advanced Laser Medical Center, Saitama Medical University, Saitama 350-0495 (Japan)] [Ophthalmology and Advanced Laser Medical Center, Saitama Medical University, Saitama 350-0495 (Japan)

2014-05-15T23:59:59.000Z

240

Harmonic Analysis Errors in Calculating Dipole,  

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

Harmonic Analysis Errors in Calculating Dipole, Harmonic Analysis Errors in Calculating Dipole, Quadrupole, and Sextupole Magnets using POISSON Ro be rt J. La ri<::::R~ i. September 10, 1985 Introduction LS-32 The computer program POISSON was used to calculate the dipole, quadru- pole, and sextupole magnets of the 6 GeV electron storage ring. A trinagular mesh must first be generated by LATTICE. The triangle size is varied over the "universe" at the discretion of the user. This note describes a series of test calculations that were made to help the user decide on the size of the mesh to reduce the harmonic field calculation errors. A conformal transfor- mation of a multipole magnet into a dipole reduces these errors. Dipole Magnet Calculations A triangular mesh used to calculate a "perfect" dipole magnet is shown in

Note: This page contains sample records for the topic "harmonics energy range" 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.
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to obtain the most current and comprehensive results.


241

Harmon County, Oklahoma: Energy Resources | Open Energy Information  

Open Energy Info (EERE)

5114°, -99.8124935° 5114°, -99.8124935° 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":34.7305114,"lon":-99.8124935,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

242

Short-Range Direct and Diffuse Irradiance Forecasts for Solar Energy Applications Based on Aerosol Chemical Transport and Numerical Weather Modeling  

Science Journals Connector (OSTI)

This study examines 23-day solar irradiance forecasts with respect to their application in solar energy industries, such as yield prediction for the integration of the strongly fluctuating solar energy into the electricity grid. During cloud-...

Hanne Breitkreuz; Marion Schroedter-Homscheidt; Thomas Holzer-Popp; Stefan Dech

2009-09-01T23:59:59.000Z

243

From Hydrogen Fuel Cells to High-Altitude-Pilot Protection Suits Mound Science and Energy Museum Programs Cover a Wide Range of Topics  

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

The Mound Science and Energy Museum (MSEM) is an active, volunteer-led organization located at the former U.S. Department of Energy (DOE) Mound site in Miamisburg, Ohio. MSEM keeps the 60-year...

244

A New Approach to Solving the Harmonic Elimination Equations for a Multilevel Converter  

E-Print Network (OSTI)

possible solutions. I. Introduction A multilevel inverter is a power electronic device built to synthesizeA New Approach to Solving the Harmonic Elimination Equations for a Multilevel Converter John N voltages, and if this energy is to be fed to into an ac power grid, a power electronic interface

Tolbert, Leon M.

245

Transport in a harmonic trap: shortcuts to adiabaticity and ultrarobust protocols  

E-Print Network (OSTI)

We study the fast transport of a particle or a Bose-Einstein condensate in a harmonic potential. An exact expression for the final excitation energy in terms of the Fourier transform of the trap acceleration is used to engineer optimal transport protocols (with no final excitation) that are ultra-robust with respect to spring-constant errors. The same technique provides a way to design the simultaneous and robust transport of a few non-interacting species that experience different harmonic trap frequencies in the same trap.

Gury-Odelin, D

2014-01-01T23:59:59.000Z

246

Transport in a harmonic trap: shortcuts to adiabaticity and ultrarobust protocols  

E-Print Network (OSTI)

We study the fast transport of a particle or a Bose-Einstein condensate in a harmonic potential. An exact expression for the final excitation energy in terms of the Fourier transform of the trap acceleration is used to engineer optimal transport protocols (with no final excitation) that are ultra-robust with respect to spring-constant errors. The same technique provides a way to design the simultaneous and robust transport of a few non-interacting species that experience different harmonic trap frequencies in the same trap.

D. Gury-Odelin; J. G. Muga

2014-10-18T23:59:59.000Z

247

Energy loss, range, path length, time-of-flight, straggling, multiple scattering, and nuclear interaction probability: In two parts. Part 1. For 63 compounds Part 2. For elements 1 ? Z ? 92  

Science Journals Connector (OSTI)

Extensive tables have been prepared of the mean energy loss, pathlength, range, multiple scattering, pathlength straggling, time-of-flight, and nonelastic collision probability for protons of energy from 1 keV through 10 GeV in all elements having atomic number from 1 through 92, and in many compounds and mixtures. Emphasis has been placed on obtaining accurate results, particularly in the difficult low-energy and high-atomic-number regions. The accuracies of all proton range-energy parameters are tabulated. The energy loss below 20 keV was found by normalizing theoretical expressions for the ionization, excitation, and nuclear contributions to known values at 20 keV. The energy loss between 20 keV and 1.0 MeV was obtained by statistically evaluating the accuracy of the available experimental information and then performing least-squares curve fits. Above 1.0 MeV, the Bethe equation with all necessary corrections was used. New values of the adjusted ionization potentials were determined by least-squares-fitting the Bethe equation to all available energy-loss data. The polarization effect was calculated in detail for each material. Path-lengths were calculated by integrating the reciprocal of the energy losses. Ranges were obtained by use of multiple Coulomb scattering theory. The straggling calculations include electronic, elastic nuclear, and charge exchange effects. The literature search was completed in June 1979. Keys for the references used for each element are collected in Table 12. A comparison of the calculational methods used here and in other recent proton range-energy tables is presented in Table 14.

Joseph F. Janni

1982-01-01T23:59:59.000Z

248

Centrality dependence of dihadron correlations and azimuthal anisotropy harmonics in PbPb collisions at $\\sqrt{s_{NN}}= 2.76\\ \\mbox{TeV}$  

SciTech Connect

Measurements from the CMS experiment at the LHC of dihadron correlations for charged particles produced in PbPb collisions at a nucleon-nucleon centre-of-mass energy of 2.76 TeV are presented. The results are reported as a function of the particle transverse momenta (pt) and collision centrality over a broad range in relative pseudorapidity [Delta(eta)] and the full range of relative azimuthal angle [Delta(phi)]. The observed two-dimensional correlation structure in Delta(eta) and Delta(phi) is characterised by a narrow peak at (Delta(eta), Delta(phi)) approximately (0, 0) from jet-like correlations and a long-range structure that persists up to at least |Delta(eta)| = 4. An enhancement of the magnitude of the short-range jet peak is observed with increasing centrality, especially for particles of pt around 1-2 GeV/c. The long-range azimuthal dihadron correlations are extensively studied using a Fourier decomposition analysis. The extracted Fourier coefficients are found to factorise into a product of single-particle azimuthal anisotropies up to pt approximately 3-3.5 GeV/c for at least one particle from each pair, except for the second-order harmonics in the most central PbPb events. Various orders of the single-particle azimuthal anisotropy harmonics are extracted for associated particle pt of 1-3 GeV/c, as a function of the trigger particle pt up to 20 GeV/c and over the full centrality range.

Chatrchyan, Serguei; et al.

2012-05-01T23:59:59.000Z

249

Kellie Harmon, University Ombuds Prof. Maria Orive, Faculty Ombuds  

E-Print Network (OSTI)

University Ombuds Office Bi-Annual Report 2009- 2011 Kellie Harmon, University Ombuds Prof. Maria & July 1, 2010 ­ June 30, 2011 Kellie Harmon, University Ombuds Prof. Maria Orive, Faculty Ombuds Prof

250

Second Harmonic Generation Studies of Fe(II) Interactions with...  

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

Second Harmonic Generation Studies of Fe(II) Interactions with Hematite (?-Fe2O3). Second Harmonic Generation Studies of Fe(II) Interactions with Hematite (?-Fe2O3)....

251

Neutron range spectrometer  

DOE Patents (OSTI)

A neutron range spectrometer and method for determining the neutron energy spectrum of a neutron emitting source are disclosed. Neutrons from the source are collimnated along a collimation axis and a position sensitive neutron counter is disposed in the path of the collimated neutron beam. The counter determines positions along the collimation axis of interactions between the neutrons in the neutron beam and a neutron-absorbing material in the counter. From the interaction positions, a computer analyzes the data and determines the neutron energy spectrum of the neutron beam. The counter is preferably shielded and a suitable neutron-absorbing material is He-3. The computer solves the following equation in the analysis: ##EQU1## where: N(x).DELTA.x=the number of neutron interactions measured between a position x and x+.DELTA.x, A.sub.i (E.sub.i).DELTA.E.sub.i =the number of incident neutrons with energy between E.sub.i and E.sub.i +.DELTA.E.sub.i, and C=C(E.sub.i)=N .sigma.(E.sub.i) where N=the number density of absorbing atoms in the position sensitive counter means and .sigma. (E.sub.i)=the average cross section of the absorbing interaction between E.sub.i and E.sub.i +.DELTA.E.sub.i.

Manglos, Stephen H. (East Syracuse, NY)

1989-06-06T23:59:59.000Z

252

Motion Planning with Gamma-Harmonic Potential  

E-Print Network (OSTI)

University of Petroleum and Minerals This paper extends the capabilities of the harmonic potential field (HPF into geometrical subregions where each region has an attribute of its own. The suggested approach uses a task) regions and to converge to the goal are provided. The capabilities of the planner are demonstrated using

Masoud, Ahmad A.

253

A Note on Stable Harmonic Maps  

Science Journals Connector (OSTI)

......direction V, then the only stable harmonic maps f : Mm -* N" are the constant maps. Proof. Suppose that / is not constant. Then fmea 0 for at least one a at some point x e N . We observe that the contribution from f+ea to the integrand in (2) is independent......

Pui-Fai Leung

1984-04-01T23:59:59.000Z

254

VOLUMETRIC HARMONIC BRAIN MAPPING Yalin Wang1  

E-Print Network (OSTI)

VOLUMETRIC HARMONIC BRAIN MAPPING Yalin Wang1 , Xianfeng Gu2 , Tony F. Chan1 , Paul M. Thompson3 and Brain Research Institute, UCLA School of Medicine 4 Department of Mathematics, Harvard University. In this paper, we apply these two techniques to brain mapping problem. We use a tetrahedral mesh to represent

255

The Large N Harmonic Oscillator as a String Theory  

E-Print Network (OSTI)

We propose a duality between the large-N gauged harmonic oscillator and a novel string theory in two dimensions.

Nissan Itzhaki; John McGreevy

2004-08-24T23:59:59.000Z

256

Generic polar harmonic transforms for invariant image representation  

Science Journals Connector (OSTI)

This paper introduces four classes of rotation-invariant orthogonal moments by generalizing four existing moments that use harmonic functions in their radial kernels. Members of these classes share beneficial properties for image representation and pattern ... Keywords: Harmonic kernels, Orthogonal moments, Polar harmonic transforms, Rotation invariance

Thai V. Hoang, Salvatore Tabbone

2014-08-01T23:59:59.000Z

257

Dynamics of short-pulse excitation, ionization and harmonic conversion  

SciTech Connect

In this paper we discuss recent calculations for xenon in pulsed laser fields which illustrate the multiphoton processes. In these calculations we have employed a single-active-electron (SAE) model which explicitly follows the separate time evolution of each of the valence electrons in the frozen, mean-field of the remaining, unexcited electrons, the nucleus and the laser field. This model works well for the rare gas atoms, at least partially because the neglected double or higher excitations involve states well above the ionization threshold. In the next section we give a brief description of the SAE model, emphasizing in particular the development of ion-core specific effective potentials. We present ionization, photoelectron and photoemission rates for xenon at 1.06 {mu}m and compare them to recent experimental results in the third section. We show that harmonics and ATI although related are not identical. The electron energy distributions do not show the cutoff observed in harmonics. After describing the quantum mechanical results and comparing them to recent experiments, we will present a simple two-step, quasi-classical model which explains these differences and which gives a more complete understanding of the dynamics of non-perturbative excitation.

Kulander, K.C.; Schafer, K.J.; Krause, J.L.

1993-01-01T23:59:59.000Z

258

Analyzing Correlation Functions with Tesseral and Cartesian Spherical Harmonics  

E-Print Network (OSTI)

The dependence of inter-particle correlations on the orientation of particle relative-momentum can yield unique information on the space-time features of emission in reactions with multiparticle final states. In the present paper, the benefits of a representation and analysis of the three-dimensional correlation information in terms of surface spherical harmonics is presented. The harmonics include the standard complex tesseral harmonics and the real cartesian harmonics. Mathematical properties of the lesser-known cartesian harmonics are illuminated. The physical content of different angular harmonic components in a correlation is described. The resolving power of different final-state effects with regarding to determining angular features of emission regions is investigated. The considered final-state effects include identity interference and strong and Coulomb interactions. The correlation analysis in terms of spherical harmonics is illustrated with the cases of gaussian and blast-wave sources for proton-charged meson and baryon-baryon pairs.

Pawel Danielewicz; Scott Pratt

2006-12-17T23:59:59.000Z

259

Analyzing Correlation Functions with Tesseral and Cartesian Spherical Harmonics  

E-Print Network (OSTI)

The dependence of inter-particle correlations on the orientation of particle relative-momentum can yield unique information on the space-time features of emission in reactions with multiparticle final states. In the present paper, the benefits of a representation and analysis of the three-dimensional correlation information in terms of surface spherical harmonics is presented. The harmonics include the standard complex tesseral harmonics and the real cartesian harmonics. Mathematical properties of the lesser-known cartesian harmonics are illuminated. The physical content of different angular harmonic components in a correlation is described. The resolving power of different final-state effects with regarding to determining angular features of emission regions is investigated. The considered final-state effects include identity interference and strong and Coulomb interactions. The correlation analysis in terms of spherical harmonics is illustrated with the cases of gaussian and blast-wave sources for proton-ch...

Danielewicz, P; Danielewicz, Pawel; Pratt, Scott

2006-01-01T23:59:59.000Z

260

Analyzing correlation functions with tesseral and Cartesian spherical harmonics  

SciTech Connect

The dependence of interparticle correlations on the orientation of particle relative momentum can yield unique information on the space-time features of emission in reactions with multiparticle final states. In the present paper, the benefits of a representation and analysis of the three-dimensional correlation information in terms of surface spherical harmonics is presented. The harmonics include the standard complex tesseral harmonics and the real Cartesian harmonics. Mathematical properties of the lesser known Cartesian harmonics are illuminated. The physical content of different angular harmonic components in a correlation is described. The resolving power of different final-state effects with regard to determining angular features of emission regions is investigated. The considered final-state effects include identity interference, strong interactions, and Coulomb interactions. The correlation analysis in terms of spherical harmonics is illustrated with the cases of Gaussian and blast-wave sources for proton-charged meson and baryon-baryon pairs.

Danielewicz, Pawel; Pratt, Scott [Department of Physics and Astronomy, and National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824 (United States); Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824 (United States)

2007-03-15T23:59:59.000Z

Note: This page contains sample records for the topic "harmonics energy range" 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

Abstract--An autonomous robotic platform should be able to perform long-range and long-endurance missions, which energy  

E-Print Network (OSTI)

Abstract-- An autonomous robotic platform should be able to perform long-range and long. Moreover, many applications for control of autonomous platform are being developed and one important aspect of autonomous and semi- autonomous platforms are being developed. The challenge to construct robust methods, and

Paris-Sud XI, Université de

262

Viking Range: Order (2014-CE-23014)  

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

DOE ordered Viking Range, LLC to pay a $8,000 civil penalty after finding Viking Range had failed to certify that certain models of cooking products comply with the applicable energy conservation standards.

263

American Range: Order (2014-CE-23006)  

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

DOE ordered American Range Corporation to pay a $8,000 civil penalty after finding American Range had failed to certify that certain models of cooking products comply with the applicable energy conservation standards.

264

Harmonic oscillator in presence of nonequilibrium environment  

SciTech Connect

Based on a microscopic Hamiltonian picture where the system is coupled with the nonequilibrium environment, comprising of a set of harmonic oscillators, the Langevin equation with proper microscopic specification of Langevin force is formulated analytically. In our case, the reservoir is perturbed by an external force, either executing rapid or showing periodic fluctuations, hence the reservoir is not in thermal equilibrium. In the presence of external fluctuating force, using Shapiro-Loginov procedure, we arrive at the linear coupled first order differential equations for the two-time correlations and examine the time evolution of the same considering the system as a simple harmonic oscillator. We study the stochastic resonance phenomena of a Kubo-type oscillator (assumed to be the system) when the bath is modulated by a periodic force. The result(s) obtained here is of general significance and can be used to analyze the signature of stochastic resonance.

Chaudhuri, Jyotipratim Ray [Department of Physics, Katwa College, Katwa, Burdwan 713130 (India); Chaudhury, Pinaki [Department of Chemistry, University of Culcutta, Kolkata 700009 (India); Chattopadhyay, Sudip [Department of Chemistry, Bengal Engineering and Science University, Shibpur, Howrah 711103 (India)

2009-06-21T23:59:59.000Z

265

Energy saving controller for fluorescent lamps.  

E-Print Network (OSTI)

??Although fluorescent lamp is a very efficient lighting device in daily life, still the high harmonic distortion and low power factor cause unnecessary energy consumption. (more)

Cheong, Zhi Xiong

2010-01-01T23:59:59.000Z

266

Strong-coupling ansatz for the one-dimensional Fermi gas in a harmonic potential  

E-Print Network (OSTI)

The one-dimensional (1D) Fermi gas with repulsive short-range interactions provides an important model of strong correlations and is often amenable to exact methods. However, in the presence of confinement, no exact solution is known for an arbitrary number of strongly interacting fermions. Here, we propose a novel ansatz for generating the lowest-energy wavefunctions of the repulsive 1D Fermi gas in a harmonic potential near the Tonks-Girardeau (TG) limit of infinite interactions. We specialize to the case of a single impurity interacting with $N$ majority particles, where we may derive analytic forms of the approximate wavefunctions. Comparing with exact numerics, we show that the overlap between the wavefunctions from our ansatz and the exact ones in the ground-state manifold exceeds 0.9997 for $N\\leq8$. Moreover, the overlap for the ground-state wavefunction extrapolates to 0.9999 as $N\\to\\infty$. Thus our ansatz is essentially indistinguishable from numerically exact results in both the few- and many-body limits. In the large $N$ limit, we find that the impurity probability density in the ground state is only slightly perturbed by the infinitely repulsive interactions, while the quasiparticle residue vanishes as the many-body limit is approached, reflecting the Anderson orthogonality catastrophe. We derive an effective Heisenberg spin-chain model for the regime near the TG limit, within which our ansatz is exact. Here, we find that the impurity eigenstates in the spin basis correspond to discrete Chebyshev polynomials. The energy of states in excited manifolds is calculated using a dynamical SO(2,1) symmetry, which provides an exact relation between states related by a scaling transformation. We finally show how our results for the wavefunctions and the energy spectrum can be detected in cold atomic gases via collective-mode, tunneling, and radio-frequency experiments.

Jesper Levinsen; Pietro Massignan; Georg M. Bruun; Meera M. Parish

2014-08-29T23:59:59.000Z

267

Quantum decoherence of the damped harmonic oscillator  

E-Print Network (OSTI)

In the framework of the Lindblad theory for open quantum systems, we determine the degree of quantum decoherence of a harmonic oscillator interacting with a thermal bath. It is found that the system manifests a quantum decoherence which is more and more significant in time. We also calculate the decoherence time and show that it has the same scale as the time after which thermal fluctuations become comparable with quantum fluctuations.

A. Isar

2006-06-27T23:59:59.000Z

268

Muons with E_th >= 1 Gev and Mass Composition in the Energy Range 10^{18}-10^{20} ev Observed by Yakutsk Eas Array  

E-Print Network (OSTI)

The ratio of the muon flux density to charged particle flux density at distances of 300 and 600 m from the shower axis ($\\rhom(300)/\\rhos(300)$ and $\\rhom(600)/\\rhos(600)$) is measured. In addition, the energy dependence of $\\rhom(1000)$ is analysed for showers with energies above $10^{18}$ eV. A comparison between the experimental data and calculations performed with the QGSJET model is given for the cases of primary proton, iron nucleus and gamma- ray. We conclude that the showers with $\\E\\ge3\\times10^{18}$ eV can be formed by light nuclei with a pronounced fraction of protons and helium nuclei. It is not excluded however that a small part of showers with energies above $10^{19}$ eV could be initiated by primary gamma-rays.

S. P. Knurenko; V. A. Kolosov; I. T. Makarov; I. Ye. Sleptsov; V. R. Sleptsova; G. G. Struchkov

2004-11-25T23:59:59.000Z

269

Regional operations research program for commercialization of geothermal energy in the Rocky Mountain basin and range. Final technical report, January 1980-March 1981  

SciTech Connect

This report describes the work accomplished from January 1980 to March 1981 in the Regional Operations Research efforts for the Rocky Mountain Basin and Range Geothermal Commercialization Program. The work included continued data acquisition and extension of the data base, enhancement and refinement of the economic models for electric and direct use applications, site-specific and aggregated analyses in support of the state teams, special analyses in support of several federal agencies, and marketing assistance to the state commercialization teams.

Not Available

1981-07-01T23:59:59.000Z

270

Harmonization of Road Signs for Electric Vehicle Charging Stations  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Avenue Louise 200 Box 113 1050 Brussels Belgium 1 Avenue Louise 200 Box 113 1050 Brussels Belgium 1 32.2.647.3218 Mobile 32.473.284.603 jseisler@cleanfuelsconsulting.org www.cleanfuelsconsulting.org Harmonization of Road Signs for Electric Vehicle Charging Stations Prepared for: Argonne National Laboratory and the U.S. Department of Energy November 2012 Avenue Louise 200 Box 113 1050 Brussels Belgium 2 32.2.647.3218 Mobile 32.473.284.603 jseisler@cleanfuelsconsulting.org www.cleanfuelsconsulting.org This page is intentionally blank. Avenue Louise 200 Box 113 1050 Brussels Belgium 3 32.2.647.3218 Mobile 32.473.284.603 jseisler@cleanfuelsconsulting.org www.cleanfuelsconsulting.org TABLE OF CONTENTS ACKNOWLEDGMENTS ............................................................................................................. 5

271

Regional Operations Research Program for Commercialization of Geothermal Energy in the Rocky Mountain Basin and Range. Final Technical Report, January 1980--March 1981  

SciTech Connect

This report describes the work accomplished from January 1980 to March 1981 in the Regional Operations Research efforts for the Rocky Mountain Basin and Range Geothermal Commercialization Program. The scope of work is as described in New Mexico State University Proposal 80-20-207. The work included continued data acquisition and extension of the data base, enhancement and refinement of the economic models for electric and direct use applications, site-specific and aggregated analyses in support of the state teams, special analyses in support of several federal agencies, and marketing assistance to the state commercialization teams.

None

1981-07-01T23:59:59.000Z

272

Constraining the gravitational wave energy density of the Universe in the Range 0.1 Hz to 1 Hz using the Apollo Seismic Array  

E-Print Network (OSTI)

In this paper, we describe an analysis of Apollo era lunar seismic data that places an upper limit on an isotropic stochastic gravitational-wave background integrated over a year in the frequency range 0.1\\,Hz -- 1\\,Hz. We find that because the Moon's ambient noise background is much quieter than that of the Earth, significant improvements over an Earth based analysis were made. We find an upper limit of $\\Omega_{\\rm GW}<1.2\\times 10^{5}$, which is three orders of magnitude smaller than a similar analysis of a global network of broadband seismometers on Earth and the best limits in this band to date. We also discuss the benefits of a potential Earth-Moon correlation search and compute the time-dependent overlap reduction function required for such an analysis. For this search, we find an upper limit an order of magnitude larger than the Moon-Moon search.

Michael Coughlin; Jan Harms

2014-09-16T23:59:59.000Z

273

Constraining the gravitational wave energy density of the Universe in the Range 0.1 Hz to 1 Hz using the Apollo Seismic Array  

E-Print Network (OSTI)

In this paper, we describe an analysis of Apollo era lunar seismic data that places an upper limit on an isotropic stochastic gravitational-wave background integrated over a year in the frequency range 0.1\\,Hz -- 1\\,Hz. We find that because the Moon's ambient noise background is much quieter than that of the Earth, significant improvements over an Earth based analysis were made. We find an upper limit of $\\Omega_{\\rm GW}<1.2\\times 10^{5}$, which is three orders of magnitude smaller than a similar analysis of a global network of broadband seismometers on Earth and the best limits in this band to date. We also discuss the benefits of a potential Earth-Moon correlation search and compute the time-dependent overlap reduction function required for such an analysis. For this search, we find an upper limit an order of magnitude larger than the Moon-Moon search.

Coughlin, Michael

2014-01-01T23:59:59.000Z

274

Probing deformed commutators with macroscopic harmonic oscillators  

E-Print Network (OSTI)

A minimal observable length is a common feature of theories that aim to merge quantum physics and gravity. Quantum mechanically, this concept is associated to a nonzero minimal uncertainty in position measurements, which is encoded in deformed commutation relations. In spite of increasing theoretical interest, the subject suffers from the complete lack of dedicated experiments and bounds to the deformation parameters are roughly extrapolated from indirect measurements. As recently proposed, low-energy mechanical oscillators could allow to reveal the effect of a modified commutator. Here we analyze the free evolution of high quality factor micro- and nano-oscillators, spanning a wide range of masses around the Planck mass $m_{\\mathrm{P}}$ (${\\approx 22\\,\\mu\\mathrm{g}}$), and compare it with a model of deformed dynamics. Previous limits to the parameters quantifying the commutator deformation are substantially lowered.

Mateusz Bawaj; Ciro Biancofiore; Michele Bonaldi; Federica Bonfigli; Antonio Borrielli; Giovanni Di Giuseppe; Lorenzo Marconi; Francesco Marino; Riccardo Natali; Antonio Pontin; Giovanni A. Prodi; Enrico Serra; David Vitali; Francesco Marin

2014-11-24T23:59:59.000Z

275

Probing deformed commutators with macroscopic harmonic oscillators  

E-Print Network (OSTI)

A minimal observable length is a common feature of theories that aim to merge quantum physics and gravity. Quantum mechanically, this concept is associated to a nonzero minimal uncertainty in position measurements, which is encoded in deformed commutation relations. In spite of increasing theoretical interest, the subject suffers from the complete lack of dedicated experiments and bounds to the deformation parameters are roughly extrapolated from indirect measurements. As recently proposed, low-energy mechanical oscillators could allow to reveal the effect of a modified commutator. Here we analyze the free evolution of high quality factor micro- and nano-oscillators, spanning a wide range of masses around the Planck mass $m_{\\mathrm{P}}$ (${\\approx 22\\,\\mu\\mathrm{g}}$), and compare it with a model of deformed dynamics. Previous limits to the parameters quantifying the commutator deformation are substantially lowered.

Bawaj, Mateusz; Bonaldi, Michele; Bonfigli, Federica; Borrielli, Antonio; Di Giuseppe, Giovanni; Marconi, Lorenzo; Marino, Francesco; Natali, Riccardo; Pontin, Antonio; Prodi, Giovanni A; Serra, Enrico; Vitali, David; Marin, Francesco

2014-01-01T23:59:59.000Z

276

Theory of Optical Harmonic Generation at a Metal Surface  

Science Journals Connector (OSTI)

It is shown that a light wave of the high intensity obtainable from lasers produces a sufficiently strong nonlinear polarization on a reflecting metal surface to result in an observable amount of second harmonic generation. The analysis is based upon a self-consistent set of Maxwell's equations and the classical Boltzmann equation, respectively, for the electromagnetic fields and the distribution function of the conduction electrons. The conduction electrons are considered to be completely free except for a potential barrier at the metal surface, and the equations are solved for the fields varying with the frequency ? of the incident wave, and also for the fields varying with the frequency 2? in the approximation where the surface barrier can be taken as a step potential. The effect of the incident light wave is treated as a perturbation to the motion of the electrons and the frequency ? is assumed to be less than half the plasma frequency ?p so that neither the fundamental nor the second harmonic wave can lead to plasma resonance. The part of the polarization varying as e-2i?t which is quadratic in the incident field is found to have the form P2(NL)=?(E1H1)+?E1divE1, where E1 and H1 are, respectively, the electric and magnetic fields varying as e-i?t and where the magnitudes of the coefficients ? and ? have been determined. Since div E1 differs from zero only near the surface of the metal, the second term in P2 (NL) can be considered as a surface contribution in contrast to the volume contribution of the first term. It is shown that these two terms give rise to comparable effects of second harmonic generation. The ratio of the average energy flux reflected with frequency 2? from the surface to the incident flux is found to be of the order of magnitude (e|Einc|mc?p)2, where Einc is the amplitude of the incident electric vector.

Sudhanshu S. Jha

1965-12-13T23:59:59.000Z

277

Phenomenological treatment of surface second-harmonic generation  

Science Journals Connector (OSTI)

A phenomenological treatment of surface second-harmonic generation that can be applied to a host of geometries of interest is presented. We consider four standard experimental...

Mizrahi, Victor; Sipe, J E

1988-01-01T23:59:59.000Z

278

Harmonic Analysis of a Static VAR Compensated Mixed Load System.  

E-Print Network (OSTI)

??As power electronic based controllers and loads become more prevalent in power systems, there is a growing concern about how the harmonics generated by these (more)

Ruckdaschel, James David

2009-01-01T23:59:59.000Z

279

Life Cycle Greenhouse Gas Emissions of Crystalline Silicon Photovoltaic Electricity Generation: Systematic Review and Harmonization  

SciTech Connect

Published scientific literature contains many studies estimating life cycle greenhouse gas (GHG) emissions of residential and utility-scale solar photovoltaics (PVs). Despite the volume of published work, variability in results hinders generalized conclusions. Most variance between studies can be attributed to differences in methods and assumptions. To clarify the published results for use in decision making and other analyses, we conduct a meta-analysis of existing studies, harmonizing key performance characteristics to produce more comparable and consistently derived results. Screening 397 life cycle assessments (LCAs) relevant to PVs yielded 13 studies on crystalline silicon (c-Si) that met minimum standards of quality, transparency, and relevance. Prior to harmonization, the median of 42 estimates of life cycle GHG emissions from those 13 LCAs was 57 grams carbon dioxide equivalent per kilowatt-hour (g CO{sub 2}-eq/kWh), with an interquartile range (IQR) of 44 to 73. After harmonizing key performance characteristics, irradiation of 1,700 kilowatt-hours per square meter per year (kWh/m{sup 2}/yr); system lifetime of 30 years; module efficiency of 13.2% or 14.0%, depending on module type; and a performance ratio of 0.75 or 0.80, depending on installation, the median estimate decreased to 45 and the IQR tightened to 39 to 49. The median estimate and variability were reduced compared to published estimates mainly because of higher average assumptions for irradiation and system lifetime. For the sample of studies evaluated, harmonization effectively reduced variability, providing a clearer synopsis of the life cycle GHG emissions from c-Si PVs. The literature used in this harmonization neither covers all possible c-Si installations nor represents the distribution of deployed or manufactured c-Si PVs.

Hsu, D. D.; O'Donoughue, P.; Fthenakis, V.; Heath, G. A.; Kim, H. C.; Sawyer, P.; Choi, J. K.; Turney, D. E.

2012-04-01T23:59:59.000Z

280

Limitations and improvements for harmonic generation measurements  

SciTech Connect

A typical acoustic harmonic generation measurement comes with certain limitations. Firstly, the use of the plane wave-based analysis used to extract the nonlinear parameter, ?, ignores the effects of diffraction, attenuation and receiver averaging which are common to most experiments, and may therefore limit the accuracy of a measurement. Secondly, the method usually requires data obtained from a through-transmission type setup, which may not be practical in a field measurement scenario where access to the component is limited. Thirdly, the technique lacks a means of pinpointing areas of damage in a component, as the measured nonlinearity represents an average over the length of signal propagation. Here we describe a three-dimensional model of harmonic generation in a sound beam, which is intended to provide a more realistic representation of a typical experiment. The presence of a reflecting boundary is then incorporated into the model to assess the feasibility of performing single-sided measurements. Experimental validation is provided where possible. Finally, a focusing acoustic source is modelled to provide a theoretical indication of the afforded advantages when the nonlinearity is localized.

Best, Steven; Croxford, Anthony; Neild, Simon [Department of Mechanical Engineering, Queens Building, University Walk, Bristol BS8 1TR (United Kingdom)

2014-02-18T23:59:59.000Z

Note: This page contains sample records for the topic "harmonics energy range" 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

Wide tracking range, auto ranging, low jitter phase lock loop for swept and fixed frequency systems  

DOE Patents (OSTI)

The present invention provides a wide tracking range phase locked loop (PLL) circuit that achieves minimal jitter in a recovered clock signal, regardless of the source of the jitter (i.e. whether it is in the source or the transmission media). The present invention PLL has automatic harmonic lockout detection circuitry via a novel lock and seek control logic in electrical communication with a programmable frequency discriminator and a code balance detector. (The frequency discriminator enables preset of a frequency window of upper and lower frequency limits to derive a programmable range within which signal acquisition is effected. The discriminator works in combination with the code balance detector circuit to minimize the sensitivity of the PLL circuit to random data in the data stream). In addition, the combination of a differential loop integrator with the lock and seek control logic obviates a code preamble and guarantees signal acquisition without harmonic lockup. An adaptive cable equalizer is desirably used in combination with the present invention PLL to recover encoded transmissions containing a clock and/or data. The equalizer automatically adapts to equalize short haul cable lengths of coaxial and twisted pair cables or wires and provides superior jitter performance itself. The combination of the equalizer with the present invention PLL is desirable in that such combination permits the use of short haul wires without significant jitter.

Kerner, Thomas M. (Manorville, NY)

2001-01-01T23:59:59.000Z

282

Generation of 9 MeV -rays by all-laser-driven Compton scattering with second-harmonic laser light  

E-Print Network (OSTI)

Generation of 9 MeV -rays by all-laser-driven Compton scattering with second-harmonic laser light dura- tions (femtosecond). Pulses of -rays, electrons, and laser light are also well synchronized); published July 7, 2014 Gamma-ray photons with energy >9 MeV were produced when second

Umstadter, Donald

283

Computers: Honeywell's New Range  

Science Journals Connector (OSTI)

... THE recent announcement by Honeywell of a new range of computers implies that the company's acquisition of the business ... software, maintenance and so on) is fully taken into account, the advantages of the Honeywell range could turn out to be much greater. The larger members of the new ...

1971-02-26T23:59:59.000Z

284

COMBINATORIAL FORMULAS CONNECTED TO DIAGONAL HARMONICS AND MACDONALD POLYNOMIALS  

E-Print Network (OSTI)

COMBINATORIAL FORMULAS CONNECTED TO DIAGONAL HARMONICS AND MACDONALD POLYNOMIALS Meesue Yoo HARMONICS AND MACDONALD POLYNOMIALS Meesue Yoo James Haglund, Advisor We study bigraded Sn-modules introduced by Garsia and Haiman as an approach to prove the Macdonald positivity conjecture. We construct

Plotkin, Joshua B.

285

Power line harmonic radiation: A systematic study using DEMETER spacecraft  

E-Print Network (OSTI)

Power line harmonic radiation: A systematic study using DEMETER spacecraft F. Nemec a,b,*, O of a systematic survey of Power line harmonic radiation (PLHR) observed by the DEMETER spacecraft. DEME- TER frequency spacing corresponds well to the power system frequency at anticipated source locations. Moreover

Santolik, Ondrej

286

Power line harmonic radiation (PLHR) observed by the DEMETER spacecraft  

E-Print Network (OSTI)

Power line harmonic radiation (PLHR) observed by the DEMETER spacecraft F. Nemec,1,2 O. Santoli´k,3 January 2006; published 22 April 2006. [1] Results of a systematic survey of Power Line Harmonic Radiation from the electric power systems which are magnetically conjugated with the place of observation

Santolik, Ondrej

287

Modulated power filter compensator for a small renewable wind energy.  

E-Print Network (OSTI)

??This paper has three sections, the first one is related to wind energy, the second is related to power filters used to mitigate the harmonics, (more)

Almadhi, Bassil

2015-01-01T23:59:59.000Z

288

Bottom-Up Energy Analysis System - Methodology and Results  

E-Print Network (OSTI)

Energy-Efficiency Standards for Electric Motors in Brazilianefficiency definitions Product class market shares Industrial electric motorsMotor Efficiency Standards - SEEEM Harmonization Initiative. in IEA Electric

McNeil, Michael A.

2013-01-01T23:59:59.000Z

289

One-shot free energy calculations for crystalline materials.  

E-Print Network (OSTI)

??Current methods for free energy calculations in materials science are either computationally expensive, as lambda-integration, or based on the harmonic approximation and thus only applicable (more)

Andersson, Tommy

2012-01-01T23:59:59.000Z

290

E-Print Network 3.0 - alternating phase harmonic Sample Search...  

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

th harmonics, and high value of phase inductance and homopolar inductance. Thus, in section 2... -sequence inductance exists only with the presence of certain harmonics. The...

291

Magnetic field measurement of superconducting dipolemagnets with harmonic coil and Hall probe  

SciTech Connect

Magnetic field measurements and field analyses of 1-m long superconducting dipole magnets fabricated at the National Laboratory for High Energy Physics (KEK) have been carried out using a harmonic coil with the bucking scheme. Conditions of the data acquisition are optimized to achieve the accurate and efficient measurements. Not only in the steady state of the magnet excitation by constant currents, but also on the way the excite current increases until the magnet quenches the field measurements have been tried, and the results are discussed in this paper on the possibility of the {open_quotes}on-the-fly{close_quotes} measurement using a harmonic coil. Some results on the so-called remnant field of the magnets measured with a Hall probe are also described.

Nakai, Hirotaka; Kabe, Atsushi; Terashima, Akio [National Lab. for High Energy Physics, Tsukuba-shi, Ibaraki-ken (Japan)] [and others

1996-12-31T23:59:59.000Z

292

Time features of delayed neutrons and partial emissive-fission cross sections for the neutron-induced fission of {sup 232}Th nuclei in the energy range 3.2-17.9 MeV  

SciTech Connect

The energy dependence of the relative abundances of delayed neutrons and the energy dependence of the half-lives of their precursors in the neutron-induced fission of {sup 232}Th nuclei in the energy range 3.2-17.9 MeV were measured for the first time. A systematics of the time features of delayed neutrons is developed. This systematics makes it possible to estimate the half-life of delayed-neutron precursors as a function of the nucleonic composition of fissile nuclei by using a single parameter set for all nuclides. The energy dependence of the partial cross sections for emissive fission in the reaction {sup 232}Th(n, f) was analyzed on the basis of data obtained for the relative abundances of delayed neutrons and the aforementioned half-lives and on the basis of the created systematics of the time features of delayed neutrons. It was shown experimentally for the first time that the decrease in the cross section after the reaction threshold in the fission of {sup 232}Th nuclei (it has a pronounced first-chance plateau) is not an exclusion among the already studied uranium, plutonium, and curium isotopes and complies with theoretical predictions obtained for the respective nuclei with allowance for shell, superfluid, and collective effects in the nuclear-level density and with allowance for preequilibrium neutron emission

Roshchenko, V. A., E-mail: roshchenko@ippe.ru; Piksaikin, V. M., E-mail: piksa@ippe.ru; Korolev, G. G.; Egorov, A. S., E-mail: egorov@ippe.r [Institute of Physics and Power Engineering (Russian Federation)

2010-06-15T23:59:59.000Z

293

Rangely Oilfield Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Date: Well Name: Location: Depth: Initial Flow Rate: "fa" is not declared as a valid unit of measurement for this property. The given value was not understood. Flow Test...

294

Life Cycle Greenhouse Gas Emissions of Trough and Tower Concentrating Solar Power Electricity Generation: Systematic Review and Harmonization  

SciTech Connect

In reviewing life cycle assessment (LCA) literature of utility-scale concentrating solar power (CSP) systems, this analysis focuses on reducing variability and clarifying the central tendency of published estimates of life cycle greenhouse gas (GHG) emissions through a meta-analytical process called harmonization. From 125 references reviewed, 10 produced 36 independent GHG emissions estimates passing screens for quality and relevance: 19 for parabolic trough (trough) technology and 17 for power tower (tower) technology. The interquartile range (IQR) of published estimates for troughs and towers were 83 and 20 grams of carbon dioxide equivalent per kilowatt-hour (g CO2-eq/kWh),1 respectively; median estimates were 26 and 38 g CO2-eq/kWh for trough and tower, respectively. Two levels of harmonization were applied. Light harmonization reduced variability in published estimates by using consistent values for key parameters pertaining to plant design and performance. The IQR and median were reduced by 87% and 17%, respectively, for troughs. For towers, the IQR and median decreased by 33% and 38%, respectively. Next, five trough LCAs reporting detailed life cycle inventories were identified. The variability and central tendency of their estimates are reduced by 91% and 81%, respectively, after light harmonization. By harmonizing these five estimates to consistent values for global warming intensities of materials and expanding system boundaries to consistently include electricity and auxiliary natural gas combustion, variability is reduced by an additional 32% while central tendency increases by 8%. These harmonized values provide useful starting points for policy makers in evaluating life cycle GHG emissions from CSP projects without the requirement to conduct a full LCA for each new project.

Burkhardt, J. J.; Heath, G.; Cohen, E.

2012-04-01T23:59:59.000Z

295

Second-harmonic generation by a graphene nanoparticle  

Science Journals Connector (OSTI)

We study the second-harmonic generation by a spherical dielectric nanoparticle covered by graphene. We demonstrate that a strong nonlinear response is caused by an induced surface current in the graphene nanoparticle illuminated by an external electromagnetic wave. We obtain analytical expressions for the field multipoles characterizing the second-harmonic radiation and analyze the dependence of intensity and directivity of the nonlinear scattering on the frequency and structure of the electromagnetic field, revealing the asymmetric radiation patterns due to constructive multipole interference for the resonantly enhanced second-harmonic generation.

Daria A. Smirnova; Ilya V. Shadrivov; Andrey E. Miroshnichenko; Alexander I. Smirnov; Yuri S. Kivshar

2014-07-11T23:59:59.000Z

296

Effects of the Spatial Extent of Multiple Harmonic Layers  

SciTech Connect

An analytic model for single particle motion in the presence of a wave field and multiple cyclotron harmonics is developed and investigated. The model suggests that even in the absence of Doppler broadening, cyclotron harmonic layers have finite spatial extent. This allows for particles to interact with more than one harmonic layer simultaneously, provided the layers are tightly packed. The latter phenomenon is investigated in the context of the model using symplectic mapping techniques. Then the model behavior is compared with numerical simulations of neutral beam particle trajectories in NSTX using the full-orbit code SPIRAL.

Burby, J. W.; Kramer, G. J.; Phillips, C. K.; Valeo, E. J. [Princeton Plasma Physics Laboratory, Princeton University, Princeton, NJ 08543 (United States)

2011-12-23T23:59:59.000Z

297

Harmonic measurements from a group connected generator HVdc converter scheme  

SciTech Connect

A recent CIGRE document published in ELECTRA has described the potential benefits of a direct connection of generators to HVdc converters. While many theoretical contributions have been made, no practical test data has become available so far. This paper reports on harmonic tests carried out at the Benmore end of the New Zealand HVdc link operating as a group connected scheme. It was found that the measured harmonic current levels were well below specified generator ratings. Dynamic simulation accurately predicted the harmonic currents whereas the results of a steady state formulation were less reliable.

Macdonald, S.J.; Enright, W.; Arrillaga, J. [Univ. of Canterbury, Christchurch (New Zealand)] [Univ. of Canterbury, Christchurch (New Zealand); O`Brien, M.T.

1995-10-01T23:59:59.000Z

298

NREL: Energy Analysis - Life Cycle Assessment Harmonization Methodolog...  

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

more than 2,100 published references as potentially being life cycle assessments (LCA) of electricity generation technologies. Each reference was then subjected to three...

299

Life Cycle Greenhouse Gas Emissions of Coal-Fired Electricity Generation: Systematic Review and Harmonization  

SciTech Connect

This systematic review and harmonization of life cycle assessments (LCAs) of utility-scale coal-fired electricity generation systems focuses on reducing variability and clarifying central tendencies in estimates of life cycle greenhouse gas (GHG) emissions. Screening 270 references for quality LCA methods, transparency, and completeness yielded 53 that reported 164 estimates of life cycle GHG emissions. These estimates for subcritical pulverized, integrated gasification combined cycle, fluidized bed, and supercritical pulverized coal combustion technologies vary from 675 to 1,689 grams CO{sub 2}-equivalent per kilowatt-hour (g CO{sub 2}-eq/kWh) (interquartile range [IQR]= 890-1,130 g CO{sub 2}-eq/kWh; median = 1,001) leading to confusion over reasonable estimates of life cycle GHG emissions from coal-fired electricity generation. By adjusting published estimates to common gross system boundaries and consistent values for key operational input parameters (most importantly, combustion carbon dioxide emission factor [CEF]), the meta-analytical process called harmonization clarifies the existing literature in ways useful for decision makers and analysts by significantly reducing the variability of estimates ({approx}53% in IQR magnitude) while maintaining a nearly constant central tendency ({approx}2.2% in median). Life cycle GHG emissions of a specific power plant depend on many factors and can differ from the generic estimates generated by the harmonization approach, but the tightness of distribution of harmonized estimates across several key coal combustion technologies implies, for some purposes, first-order estimates of life cycle GHG emissions could be based on knowledge of the technology type, coal mine emissions, thermal efficiency, and CEF alone without requiring full LCAs. Areas where new research is necessary to ensure accuracy are also discussed.

Whitaker, M.; Heath, G. A.; O'Donoughue, P.; Vorum, M.

2012-04-01T23:59:59.000Z

300

RangeTables.xls  

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

(MeVcmmg) LET vs. Range in Si for 25 MeV SEE Beams (low LET) 4 He 14 N 0 0.5 1 1.5 0 600 1200 1800 2400 3000 3600 4 He 14 N 22 Ne 0 1 2 3 4 5 6 7 8 9 10 0 100 200 300 400 500...

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


301

Opportunities for regional harmonization of appliance standards and l abeling program  

SciTech Connect

The South Asian Regional Initiative for Energy (SARI/Energy) calls for a series of activities to promote Energy Efficiency Standards and Labeling (EES&L) of end use appliances in the region. In pursuit of this goal, the project supports several seminars and meetings that bring together policymakers and stakeholders from throughout the region. The purpose of these gatherings is to encourage a dialogue among participants as to the benefits and barriers associated with EES&L programs. In addition, it is the role of the program organizers to provide participants with the technical details necessary to make progress towards effective efficiency programs. One component of the initiative is to encourage the harmonization (alignment) of existing program components, and the pursuit of new programs coordinated at the regional level. In support of this goal, the report provides information aimed at motivating and enabling cooperative activities which will provide concrete benefits to programs in each country, whether well developed, or still in the initial planning stage. It should be emphasized that the underlying objective of the harmonization component of the SARI/Energy project is to increase the potential for success of EES&L programs of all countries involved, and to reduce burdens on manufacturers, exporters and importers in each country. Harmonization ''for it's own sake'' is not desirable, nor is it suggested that policymakers should bring their programs in line with international norms if doing so would present a disadvantage to their own efficiency programs, or to commercial interests within their country. If there is no such disadvantage, however, the program encourages alignment of policies and provides a forum at which this alignment can be pursued. The report covers several main topics, with varying emphasis. First, a general discussion of the motivation for an explicit policy of regional harmonization is given. Next, the current status of existing programs in the region are discussed in some detail. The section that follows covers the harmonization of efficiency test procedures. Special attention is given to this component of an EES&L program because it is the most critical element in terms of harmonization--having incompatible test procedures between trade partners can greatly impact the effectiveness of a program, and it can also unduly impact trade. Currently, policymakers in India and Sri Lanka are collaborating with the goal of aligning refrigerator test procedures used in their respective programs. For this reason, the section on test procedures of refrigerators goes into a significant amount of technical detail, in order to provide the clearest possible articulation of issues to be resolved in bringing the procedures into alignment. Following the discussion of test procedures, the report contains a section each on harmonization of efficiency rating levels, development of label designs, and enforcement issues. The report is organized such that the sections covering current programs and test procedures are subdivided by target appliance. These sections are further divided by country, where applicable. Each section is concluded with recommendations.

McNeil, Michael A.

2003-09-01T23:59:59.000Z

302

NREL: Energy Analysis - Ethan Warner  

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

G.; O'Donoughue, P. (2010). "Harmonization of Energy Generation Life Cycle Assessments (LCA): FY2010 LCA Milestone Report, November 2010." 17 pp.; NREL Report No. MP-6A20- 47492....

303

Brueckner calculations in harmonic-oscillator basis I. The method  

Science Journals Connector (OSTI)

The problem of solving the reaction matrix equation in harmonic-oscillator basis is studied. A general approximation of the Pauli operator, diagonal with respect to the centre-of-mass quantum numbers, is deriv...

J. Blank

1979-01-01T23:59:59.000Z

304

Equivalent Circuit Analysis of Harmonic Distortions in Photodiode  

E-Print Network (OSTI)

and C. Boisrobert, Photodiode for coherent detection:Harmonic Distortions in Photodiode H. Jiang and P. K. L. Yu,coef?cient S 11 of the photodiode under dc illumination.

Yu, Paul K.L.

1998-01-01T23:59:59.000Z

305

Modeling and Estimating Current Harmonics of Variable Electronic Loads  

E-Print Network (OSTI)

This paper develops a model for relating input current harmonic content to real power consumption for variable electronic loads, specifically for loads' actively controlled inverters energized by an uncontrolled rectification ...

Wichakool, Warit

306

Analysis and Design of New Harmonic Mitigation Approaches  

E-Print Network (OSTI)

improvement, achieved when an active power filter is introduced. On the other hand, the high frequency harmonic cancellation when interleaved inverters are used, the circulation of zero-sequence current and the impact of interleaving on dc bus capacitor...

Aeloiza Matus, Eddy 1972-

2012-11-01T23:59:59.000Z

307

Autonomous Control of Inverter-Interfaced Distributed Generation Units for Harmonic Current Filtering and  

E-Print Network (OSTI)

Autonomous Control of Inverter-Interfaced Distributed Generation Units for Harmonic Current-interfaced Distributed Generation (DG) units, which can autonomously share harmonic currents and resonance damping, such that harmonic resonances and voltage distortions can be damped. To autonomously share harmonic currents, a droop

Chen, Zhe

308

Leonardo Energy | Open Energy Information  

Open Energy Info (EERE)

ENERGY is the premier web site delivering a range of virtual libraries relating to electrical energy." References "Leonardo Energy" Retrieved from "http:en.openei.org...

309

Harmonic generation of gravitational wave induced Alfven waves  

E-Print Network (OSTI)

Here we consider the nonlinear evolution of Alfven waves that have been excited by gravitational waves from merging binary pulsars. We derive a wave equation for strongly nonlinear and dispersive Alfven waves. Due to the weak dispersion of the Alfven waves, significant wave steepening can occur, which in turn implies strong harmonic generation. We find that the harmonic generation is saturated due to dispersive effects, and use this to estimate the resulting spectrum. Finally we discuss the possibility of observing the above process.

Mats Forsberg; Gert Brodin

2007-11-26T23:59:59.000Z

310

Low efficiency gratings for 3rd harmonic diagnostics applications  

SciTech Connect

The baseline design of the National Ignition Facility (NIF) calls for sampling gratings to provide third-harmonic energy diagnostics in the highly constrained area of the target chamber. These 40 {times} 4O cm transmission gratings are to diffract at (order +1) nominally 0.3% of the incident 351 run light at a small angle on to a focusing mirror and into a calorimeter. The design calls for a plane grating of 500 lines/mm, and approximately 30 run deep, etched into a fused silica focusing lens and subsequently overcoated with a solgel anti reflective coating. Gratings of similar aperture and feature size have been produced for other applications by ion etching processes, but, in an effort to reduce substantially the cost of such optics, we are studying the feasibility of making these gratings by wet chemical etching techniques. Experimentation with high-quality fused silica substrates on 5 and 15 cm. scale has led to a wet etching process which can meet the design goals and which offers no significant scaleup barriers to full sized optics. The grating is produced by holographic exposure and a series of processing steps using only a photoresist mask and a final hydrofluoric acid etch. Gratings on 15 cm diameter test substrates exhibit absolute diffraction efficiencies from 0.2--0.4% with a standard deviation of about 15% of the mean over the full aperture. The efficiency variation is due to variation in linewidth caused by spatial nonuniformities in exposure energy. Uniformity improvements can be realized by using a smaller, more uniform portion of the exposure beam and exposing for longer times. The laser damage threshold for these gratings has been measured at LLNL and found to be identical to that of the fused silica substrate.

Britten, J.A.; Boyd, R.D.; Perry, M.D.; Shore, B.W.; Thomas, I.M.

1995-08-09T23:59:59.000Z

311

Casimir Friction in Terms of Moving Harmonic Oscillators: Equivalence Between Two Different Formulations  

E-Print Network (OSTI)

The Casimir friction problem can be dealt with in a simplified way by considering two harmonic oscillators moving with constant relative velocity. Recently we calculated the energy dissipation for such a case, [EPL {\\bf 91}, 60003 (2010); Europ. Phys. J. D {\\bf 61}, 335 (2011)]. A recent study of Barton [New J. Phys. {\\bf 12}, 113044 (2010)] seemingly leads to a different result for the dissipation. If such a discrepancy really were true, it would imply a delicate difficulty for the basic theory of Casimir friction. In the present note we show that the expressions for the dissipation are in fact physically equivalent, at T=0.

Johan S. Hye; Iver Brevik

2011-01-06T23:59:59.000Z

312

A Harmonized Multimodel Framework for Safety Environments  

Science Journals Connector (OSTI)

Safety critical systems developments are dealing with complex environments especially when they are satisfying with a wide range of models, regulations and standards at the same time. Therefore there is an evi...

Xabier Larrucea; Izaskun Santamaria

2012-01-01T23:59:59.000Z

313

Range imaging laser radar  

DOE Patents (OSTI)

A laser source is operated continuously and modulated periodically (typicy sinusoidally). A receiver imposes another periodic modulation on the received optical signal, the modulated signal being detected by an array of detectors of the integrating type. Range to the target determined by measuring the phase shift of the intensity modulation on the received optical beam relative to a reference. The receiver comprises a photoemitter for converting the reflected, periodically modulated, return beam to an accordingly modulated electron stream. The electron stream is modulated by a local demodulation signal source and subsequently converted back to a photon stream by a detector. A charge coupled device (CCD) array then averages and samples the photon stream to provide an electrical signal in accordance with the photon stream.

Scott, Marion W. (Albuquerque, NM)

1990-01-01T23:59:59.000Z

314

Harmonic experiments to model fracture induced anisotropy  

E-Print Network (OSTI)

´oleo (IGPUBA), Universidad de Buenos Aires, Argentina, and Universidad Nacional de La Plata, Argentina. work;Fractured media. III · Displacement discontinuities conserve energy, while velocity discontinuities generate energy loss at the fractures. The specific viscosity accounts for the presence of a liquid under

Santos, Juan

315

Harmonic experiments to model fracture induced anisotropy  

E-Print Network (OSTI)

´oleo (IGPUBA), Universidad de Buenos Aires, Argentina, and Universidad Nacional de La Plata, Argentina. work;Fractured media. III Displacement discontinuities conserve energy, while velocity discontinuities generate energy loss at the fractures. The specific viscosity accounts for the presence of a liquid under

Santos, Juan

316

FERMI @ Elettra -- A Seeded Harmonic Cascade FEL for EUV and SoftX-rays  

SciTech Connect

We describe the machine layout and major performance parameters for the FERMI FEL project funded for construction at Sincrotrone Trieste, Italy, within the next five years. The project will be the first user facility based on seeded harmonic cascade FELs, providing controlled, high peak-power pulses. With a high-brightness rf photocathode gun, and using the existing 1.2 GeV S-band linac, the facility will provide tunable output over a range from {approx}100 nm to {approx}10nm, with pulse duration from 40 fs to {approx} 1 ps, peak power GW, and with fully variable output polarization. Initially, two FEL cascades are planned; a single-stage harmonic generation to operate >40 nm, and a two stage cascade operating from {approx}40 nm to {approx}10 nm or shorter wavelength. The output is spatially and temporally coherent, with peak power in the GW range. Lasers provide modulation to the electron beam, as well as driving the photocathode and other systems, and the facility will integrate laser systems with the accelerator infrastructure, including a state-of-the-art optical timing system providing synchronization of rf signals, lasers, and x-ray pulses. Major systems and overall facility layout are described, and key performance parameters summarized.

Bocchetta, C.; Bulfone, D.; Craievich, P.; Danailov, M.B.; D'Auria,G.; DeNinno, G.; Di Mitri, S.; Diviacco, B.; Ferianis, M.; Gomezel, A.; Iazzourene, F.; Karantzoulis, E.; Parmigiani, F.; Penco, G.; Trovo, M.; Corlett, J.; Fawley, W.; Lidia, S.; Penn, G.; Ratti, A.; Staples, J.; Wilcox, R.; Zholents, A.; Graves, W.; Ilday, F.O.; Kaertner,F.; Wang, D.; Zwart, T.; Cornacchia, M.; Emma, P.; Huang, Z.; Wu, J.

2005-09-01T23:59:59.000Z

317

FERMI@Elettra: A Seeded Harmonic Cascade FEL for EUV and Soft X-Rays  

SciTech Connect

We describe the machine layout and major performance parameters for the FERMI FEL project funded for construction at Sincrotrone Trieste, Italy, within the next five years. The project will be the first user facility based on seeded harmonic cascade FEL's, providing controlled, high peak-power pulses. With a high-brightness rf photocathode gun, and using the existing 1.2 GeV S-band linac, the facility will provide tunable output over a range from {approx}100 nm to {approx}10 nm, with pulse duration from 40 fs to {approx} 1ps, peak power {approx}GW, and with fully variable output polarization. Initially, two FEL cascades are planned; a single-stage harmonic generation to operate > 40 nm, and a two-stage cascade operating from {approx}40 nm to {approx}10 nm or shorter wavelength. The output is spatially and temporally coherent, with peak power in the GW range. Lasers provide modulation to the electron beam, as well as driving the photocathode and other systems, and the facility will integrate laser systems with the accelerator infrastructure, including a state-of-the-art optical timing system providing synchronization of rf signals, lasers, and x-ray pulses. Major systems and overall facility layout are described, and key performance parameters summarized.

Bocchetta, C.J.; Bulfone, D.; Craievich, P.; Danailov, M.B.; D'Auria, G.; De Ninno, G.; Di Mitri, S.; Diviacco, B.; Ferianis, M.; Gomezel, A.; Iazzourene, F.; Karantzoulis, E.; Parmigiani, F.; Penco, G.; Trovo, M.; /Sincrotrone Trieste; Corlett, J.; Fawley, W.; Lidia, S.; Penn, G.; Ratti, A.; Staples, J.; /LBL, Berkeley /MIT /SLAC

2005-12-14T23:59:59.000Z

318

rf Plasma Heating in a Mirror Machine at Frequencies near the Ion Cyclotron Frequency and its Harmonics  

Science Journals Connector (OSTI)

By applying 75 kW of pulsed rf power to a decaying hydrogen plasma following turbulent heating, we have maintained a plasma density of 1012 to 5 1012 cm-3 for the 600-? sec duration of the rf pulse. Neutral energy analyzer measurements of ion temperature indicate Ti?100 eV, while diamagnetic loop measurements indicate 100eVrf signals near the harmonics of the ion cyclotron frequency.

D. G. Swanson; R. W. Clark; P. Korn; S. Robertson; C. B. Wharton

1972-04-17T23:59:59.000Z

319

THE PUZZLING HARMONIC BEHAVIOR OF THE CATHEDRAL QPO IN XTE J1859+226  

SciTech Connect

We present a spectral and temporal analysis of the Cathedral quasi-periodic oscillation (QPO) detected in the power density spectra of the black hole binary and microquasar XTE J1859+226, obtained using Rossi X-Ray Timing Explorer. This type of QPO has been seen on two occasions (MJDs 51574.43 and 51575.43) during the 1998 outburst of this source. It manifests as two peaks with similar amplitudes ({approx}3% and {approx}5% rms) and harmonically related centroid frequencies ({approx}3 and {approx}6 Hz). The temporal properties of these two peaks are different: the amplitude of the {approx}3-Hz feature varies, in anticorrelation with the count rate, by {approx}50%. The {approx}6-Hz feature, on the other hand, shows a slight increase ({approx}7%) in its amplitude with the count rate. The rms spectra of the two peaks are also quite different. The {approx}3-Hz feature is softer than the other one, and, although its rms amplitude increases with energy, it shows a cutoff at an energy of {approx}6 keV. The rms of the {approx}6-Hz feature increases with energies up to at least 20 keV. We also study the bicoherence b{sup 2}({mu}, {nu}) of both observations. At the diagonal position of the peaks, the values b{sup 2}({approx} 3, {approx} 3) and b{sup 2}({approx} 6, {approx} 6) are rather high and similar to those reported for type C QPOs of GRS 1915+105. In comparison with the latter source, the bicoherence of the {approx}3-Hz feature is higher than that of the other peak, which may indicate that the {approx}3-Hz feature is the fundamental QPO and the other is its first harmonic. The value of b{sup 2}({approx} 3, {approx} 6) is, however, very low and therefore indicates a behavior different from that seen in the type C QPO of GRS 1915+105. We discuss the implications of these differences in the context of a harmonic relationship between the peaks, and suggest that, rather than pure harmonics, we may see different modes of the same underlying phenomenon competing to produce QPOs at different frequencies.

Rodriguez, J. [Laboratoire AIM, UMR 7158, CEA/DSM-CNRS-Universite Paris Diderot, IRFU/SAp, F-91191 Gif-sur-Yvette (France); Varniere, P. [Laboratoire APC, UMR 7164, CNRS-Universite Paris Diderot-CEA/DSM, 10 rue Alice Domon et Leonie Duquet, 75205 Paris Cedex 13 (France)

2011-07-10T23:59:59.000Z

320

Live Fire Range Environmental Assessment  

SciTech Connect

The Central Training Academy (CTA) is a DOE Headquarters Organization located in Albuquerque, New Mexico, with the mission to effectively and efficiently educate and train personnel involved in the protection of vital national security interests of DOE. The CTA Live Fire Range (LFR), where most of the firearms and tactical training occurs, is a complex separate from the main campus. The purpose of the proposed action is to expand the LFR to allow more options of implementing required training. The Department of Energy has prepared this Environmental Assessment (EA) for the proposed construction and operation of an expanded Live Fire Range Facility at the Central Training Academy in Albuquerque, New Mexico. Based on the analysis in the EA, DOE has determined that the proposed action is not a major Federal action significantly affecting the quality of the human environment, within the meaning of the National Environmental Policy Act (NEPA) of 1969. Therefore, the preparation of an environmental impact statement is not required and DOE is issuing this Finding of No Significant Impact (FONSI).

None

1993-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "harmonics energy range" 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

A high-order harmonic generation apparatus for time- and angle-resolved photoelectron spectroscopy  

SciTech Connect

We present a table top setup for time- and angle-resolved photoelectron spectroscopy to investigate band structure dynamics of correlated materials driven far from equilibrium by femtosecond laser pulse excitation. With the electron-phonon equilibration time being in the order of 12 ps it is necessary to achieve sub-picosecond time resolution. Few techniques provide both the necessary time and energy resolution to map non-equilibrium states of the band structure. Laser-driven high-order harmonic generation is such a technique. In our experiment, a grating monochromator delivers tunable photon energies up to 40 eV. A photon energy bandwidth of 150 meV and a pulse duration of 100 fs FWHM allow us to cover the k-space necessary to map valence bands at different k{sub z} and detect outer core states.

Frietsch, B.; Gahl, C.; Teichmann, M.; Weinelt, M. [Freie Universitt Berlin, Arnimallee 14, 14195 Berlin (Germany)] [Freie Universitt Berlin, Arnimallee 14, 14195 Berlin (Germany); Carley, R. [Freie Universitt Berlin, Arnimallee 14, 14195 Berlin (Germany) [Freie Universitt Berlin, Arnimallee 14, 14195 Berlin (Germany); Max-Born-Institut, Max-Born-Str. 2a, 12489 Berlin (Germany); Dbrich, K. [Max-Born-Institut, Max-Born-Str. 2a, 12489 Berlin (Germany)] [Max-Born-Institut, Max-Born-Str. 2a, 12489 Berlin (Germany); Schwarzkopf, O.; Wernet, Ph. [Helmholtz-Zentrum Berlin fr Materialien und Energie GmbH, Albert-Einstein-Str. 15, 12489 Berlin (Germany)] [Helmholtz-Zentrum Berlin fr Materialien und Energie GmbH, Albert-Einstein-Str. 15, 12489 Berlin (Germany)

2013-07-15T23:59:59.000Z

322

Alternative Energy Development and China's Energy Future  

E-Print Network (OSTI)

by Alternative Energy Technology . 75Figure 25. Range in Alternative Energy EROEIs in Existingof Energy Output for Alternative Energy Development, 2010-

Zheng, Nina

2012-01-01T23:59:59.000Z

323

Energy Analysis by Sector | Department of Energy  

Office of Environmental Management (EM)

Energy Analysis by Sector Energy Analysis by Sector Manufacturers often rely on energy-intensive technologies and processes. AMO conducts a range of analyses to explore energy use...

324

Energy  

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

Energy newsroomassetsimagesenergy-icon.png Energy Research into alternative forms of energy, and improving and securing the power grid, is a major national security...

325

Range Separated Brueckner Coupled Cluster Doubles Theory  

E-Print Network (OSTI)

We introduce a range-separation approximation to coupled cluster doubles (CCD) theory that successfully overcomes limitations of regular CCD when applied to the uniform electron gas. We combine the short-range ladder channel with the long-range ring channel in the presence of a Bruckner renormalized one-body interaction and obtain ground-state energies with an accuracy of 0.001 a.u./electron across a wide range of density regimes. Our scheme is particularly useful in the low-density and strongly-correlated regimes, where regular CCD has serious drawbacks. Moreover, we cure the infamous overcorrelation of approaches based on ring diagrams (i.e. the particle-hole random phase approximation). Our energies are further shown to have appropriate basis set and thermodynamic limit convergence, and overall this scheme promises energetic properties for realistic periodic and extended systems which existing methods do not possess.

Shepherd, James J; Scuseria, Gustavo E

2013-01-01T23:59:59.000Z

326

High-order harmonic generation from plasma plume pumped by 400 nm wavelength laser  

SciTech Connect

The authors present their study on high-order harmonic generation pumped by 400 nm wavelength laser from plasma plumes produced on the surfaces of various solid-state targets. The maximum harmonic cutoff was observed for Be plasma (31st harmonic, {lambda}=12.9 nm). They compared these results with harmonic generation pumped by 800 nm wavelength laser. The authors demonstrated single harmonic enhancement for Cr, Sn, Sb, and Mn plasmas. They also studied the use of varying the chirp of the pump laser to control the enhancement of single harmonics within the plateau.

Ganeev, Rashid A.; Elouga Bom, Luc B.; Ozaki, Tsuneyuki [Institut National de la Recherche Scientifique, Energie, Materiaux et Telecommunications, 1650 Lionel-Boulet, Varennes, Quebec J3X 1S2 (Canada) and Scientific Association Akadempribor, Academy of Sciences of Uzbekistan, Akademgorodok, Tashkent 100125 (Uzbekistan); Institut National de la Recherche Scientifique, Energie, Materiaux et Telecommunications, 1650 Lionel-Boulet, Varennes, Quebec J3X 1S2 (Canada)

2007-09-24T23:59:59.000Z

327

Cascaded Cerenkov third-harmonic generation in random quadratic media  

SciTech Connect

We investigate experimentally and theoretically the conical emission of Cerenkov-type third-harmonic generation in strontium barium niobate of random 2D-{chi}{sup (2)} distribution. The azimuthal intensity distribution is explained by the polarization properties of the fundamental and Cerenkov second-harmonic waves, depending on the cascaded origin of the generation process. Moreover, we show the role of the individual domain shape in an additional modulation on the conical emission, controlled by the electrical switching of the spontaneous polarization of the ferroelectric medium.

Ayoub, Mousa; Roedig, Philip; Imbrock, Joerg; Denz, Cornelia [Institute of Applied Physics and Center for Nonlinear Science (CeNoS), Westfaelische Wilhelms-Universitaet Muenster, Corrensstrasse 2, 48149 Muenster (Germany)

2011-12-12T23:59:59.000Z

328

Propagation of nonlinearly generated harmonic spin waves in microscopic stripes  

SciTech Connect

We report on the experimental study of the propagation of nonlinearly generated harmonic spin waves in microscopic CoFeB stripes. Using an all electrical technique with coplanar waveguides, we find that two kinds of spin waves can be generated by nonlinear frequency multiplication. One has a non-uniform spatial geometry and thus requires appropriate detector geometry to be identified. The other corresponds to the resonant fundamental propagative spin waves and can be efficiently excited by double- or triple-frequency harmonics with any geometry. Nonlinear excited spin waves are particularly efficient in providing an electrical signal arising from spin wave propagation.

Rousseau, O. [Center for Emergent Matter Science, RIKEN, 2-1 Hirosawa, Wako 351-0198 (Japan); Yamada, M.; Miura, K.; Ogawa, S. [Hitachi, Ltd., Central Research Laboratory, 1-280 Higashi-koigakubo, Kokubunji, Tokyo 185-8601 (Japan); Otani, Y., E-mail: yotani@issp.u-tokyo.ac.jp [Center for Emergent Matter Science, RIKEN, 2-1 Hirosawa, Wako 351-0198 (Japan); Institute for Solid State Physics, University of Tokyo, Kashiwa 277-858 (Japan)

2014-02-07T23:59:59.000Z

329

Harmonic mean, the Gamma factor and Speed of Light  

E-Print Network (OSTI)

The relationship between the harmonic mean and special relativity is concisely elucidated. The arguments in favor and against SRT are explored. It is shown that the ratio of the speed of light to the harmonic mean of the onward and return speeds of light in a moving frame under Newtonian mechanics, when equitably distributed between space and time as a correction, leads to the Lorentz transformation. This correction implies an apparent contraction of objects and time dilation. However, the symmetry of the onward and inverse transformations give a different meaning to the gamma factor

Chandru Iyer

2008-11-05T23:59:59.000Z

330

Harmonic content of electron-impact source functions in inductively coupled plasmas using an ``on-the-fly'' Monte Carlo technique  

E-Print Network (OSTI)

Harmonic content of electron-impact source functions in inductively coupled plasmas using an ``on of electron-impact source functions having high-threshold energies due to modulation of the tail the time dependence of electron-impact source functions in low-pressure ICP systems. We found that even

Kushner, Mark

331

Harmonic measurements made on the upgraded New Zealand inter-island HVdc transmission system  

SciTech Connect

This paper introduces the recent upgrade to the New Zealand inter-island HVdc transmission system. It then details the procedure of one of several tests conducted to measure harmonic levels created by the upgraded transmission system. Harmonic levels were measured using the CHART (Continuous Harmonic Analysis in Real-Time) harmonic monitoring instrumentation. The connection of CHART to the high voltage network and its configuration during the test is discussed. A sample of results gathered while monitoring are presented, including characteristic harmonics of the converter, and maximum voltage and current levels up to the 50th harmonic for each of the three a.c. phases. During the tests one of the two a.c. harmonic filters was switched out to observe its effect on harmonic levels. It was found that with both a.c. harmonic filters operating, most harmonic levels were lower than with only one filter operating. However some harmonic levels, namely the 4th harmonic, were larger with both filters operating. The paper is concluded with a discussion of the results and of the difficulties encountered in measuring harmonics of very low level.

Miller, A.J.V.; Dewe, M.B. (Univ. of Canterbury, Christchurch (New Zealand))

1994-07-01T23:59:59.000Z

332

Second harmonic emission from an axially excited slab of a dielectric thin-film helicoidal bianisotropic medium  

Science Journals Connector (OSTI)

...second-harmonic (SH) generation is possible inside the...presented. second harmonic generation|sculptured thinlms...Keywords: second harmonic generation; sculptured thin films...biological, chemical or nuclear significance; (ii...iv) specialized reactors for asymmetric synthesis...

1998-01-01T23:59:59.000Z

333

In the mIdst of an energy revolutIon, Purdue's world-class researchers lead the charge. we collaborate across a broad range of dIscIPlInes --to develoP  

E-Print Network (OSTI)

rechargIng IndIana's renewable energy revolutIon #12;enerGY solutions solar The U.S. Department of Energy expects that 10-15 percent of the nation's energy should be generated from solar sources by 2030. The target of the Purdue projects: · Researchersaredevelopingthinfilm solar cells that would have greater

Holland, Jeffrey

334

Brueckner calculations in harmonic oscillator basis  

Science Journals Connector (OSTI)

The binding energy (b.e.), r.m.s. radius and charge form factor of the4He nucleus are calculated for the Hamada-Johnston potential using the method developed in part I of this study. The single-particle spectrum ...

J. Blank

1979-01-01T23:59:59.000Z

335

Wideband phased array antennas and compact, harmonic-suppressed microstrip filters  

E-Print Network (OSTI)

. Since the electromagnetic spectrum is limited and has to be shared, interference is getting serious as more and more wireless applications emerge. Filters are key components to prevent harmonic interference. The harmonic signals can be suppressed...

Tu, Wen-Hua

2009-05-15T23:59:59.000Z

336

NREL: Energy Analysis - Wind Power Results - Life Cycle Assessment  

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

Wind LCA Harmonization (Fact Sheet) Wind LCA Harmonization (Fact Sheet) Cover of the LWind LCA Harmonization Fact Sheet Download the Fact Sheet Wind Power Results - Life Cycle Assessment Harmonization To better understand the state of knowledge of greenhouse gas (GHG) emissions from utility-scale wind power systems, NREL developed and applied a systematic approach to review life cycle assessment literature, identify sources of variability and, where possible, reduce variability in GHG emissions estimates through a meta-analytical process called "harmonization." Over the last 30 years, several hundred life cycle assessments have been conducted for wind power technologies with wide-ranging results. Harmonization for onshore and offshore wind power systems was performed by adjusting published greenhouse gas estimates to achieve:

337

Cover image High-harmonic generation could be  

E-Print Network (OSTI)

in an exciton-polariton condensate. Letter p805 811 assessment of carrier-multiplication efficiency in bulk PbCover image High-harmonic generation could be the basis of frequency combs for vacuum astrophysics: How to see a black hole R. Paul Drake 787 High-temperature superconductivity: alive and kicking C

Loss, Daniel

338

Born-Oppenheimer approximation for a harmonic molecule  

E-Print Network (OSTI)

We apply the Born-Oppenheimer approximation to a harmonic diatomic molecule with one electron. We compare the exact and approximate results not only for the internal degrees of freedom but also for the motion of the center of mass. We address the problem of identical nuclei and discuss other applications of the model and its limitations.

Francisco M. Fernandez

2008-10-13T23:59:59.000Z

339

Synchronized Video: An Interface for Harmonizing Video with Body Movements  

E-Print Network (OSTI)

Synchronized Video: An Interface for Harmonizing Video with Body Movements Yoshihiro Watanabe@ipc.i.u-tokyo.ac.jp ABSTRACT We propose a new media reproduction technology called Syn- chronized Video that supports the learning of new body move- ments. The proposed technology plays video in synchroniza- tion with human body

Yamamoto, Hirosuke

340

Excitation of electron Langmuir frequency harmonics in the solar atmosphere  

SciTech Connect

An alternative mechanism for the excitation of electron Langmuir frequency harmonics as a result of the development of explosive instability in a weakly relativistic beam-plasma system in the solar atmosphere is proposed. The efficiency of the new mechanism as compared to the previously discussed ones is analyzed.

Fomichev, V. V.; Fainshtein, S. M.; Chernov, G. P. [Russian Academy of Sciences, Institute of Terrestrial Magnetism, Ionosphere, and Radio Wave Propagation (Russian Federation)

2013-05-15T23:59:59.000Z

Note: This page contains sample records for the topic "harmonics energy range" 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

Theory of passive harmonic mode-locking using waveguide arrays  

E-Print Network (OSTI)

laser," Opt. Lett. 23, 123-125 (1998). 3. M. E. Fermann and J. D. Minelly, "Cladding-pumped passive theoretical treatment is given of the phe- nomenon of harmonic mode-locking in a laser cavity mode Optical Society of America OCIS codes: (140.4050) Mode-locked lasers; (060.5530) Pulse propagation

342

Optical Third-Harmonic Coefficients for Inert Gases  

Science Journals Connector (OSTI)

Optical third-harmonic coefficients ?zzzz(3?) for the inert gases have been calculated taking the LS coupling scheme for helium and Jj and jl coupling schemes for neon, argon, and krypton. Our calculated values agree reasonably well with the experimental values of set (i) of Ward and New.

B. P. Tripathi; R. K. Laloraya; S. L. Srivastava

1971-11-01T23:59:59.000Z

343

Harmonic Distortion Analysis via Perturbation K. Odame, P. E. Hasler  

E-Print Network (OSTI)

Harmonic Distortion Analysis via Perturbation Methods K. Odame, P. E. Hasler School of Electrical series analysis. This paper describes some elementary results that come from applying perturbation, is modeled by h(x). In practice, h(x) is typically some non-ideality such as finite output resistance

Odam, Kofi

344

The package HarmonicSums: Computer Algebra and Analytic aspects of Nested Sums  

E-Print Network (OSTI)

This paper summarizes the essential functionality of the computer algebra package HarmonicSums. On the one hand HarmonicSums can work with nested sums such as harmonic sums and their generalizations and on the other hand it can treat iterated integrals of the Poincare and Chen-type, such as harmonic polylogarithms and their generalizations. The interplay of these representations and the analytic aspects are illustrated by concrete examples.

Jakob Ablinger

2014-07-23T23:59:59.000Z

345

A three-phase converter model for harmonic analysis of HVDC systems  

SciTech Connect

An equivalent circuit model is presented to model bridge converters for three-phase HVDC harmonic power flow analysis. The validity and accuracy of the model are verified by comparing simulation results against field test results. The model is interfaced with a multiphase harmonic load flow program to investigate the generation of non-characteristic harmonics from HVDC links and the flow of HVDC harmonics in a real system.

Xu, W.; Drakos, J.E.; Mansour, Y.; Chang, A. (B.C. Hydro, Burnaby, British Columbia (Canada))

1994-07-01T23:59:59.000Z

346

Compact range for variable-zone measurements  

DOE Patents (OSTI)

A compact range for testing antennas or radar targets includes a source for directing energy along a feedline toward a parabolic reflector. The reflected wave is a spherical wave with a radius dependent on the distance of the source from the focal point of the reflector.

Burnside, Walter D. (Columbus, OH); Rudduck, Roger C. (Columbus, OH); Yu, Jiunn S. (Albuquerque, NM)

1988-01-01T23:59:59.000Z

347

Electrical Engineering Technology (EET) LONG RANGE SCHEDULE  

E-Print Network (OSTI)

and Machinery C T C T EET 365W Electrical Power & Machinery Laboratory C C, V V C C, V V EET 370T Energy=Virtual Laboratory, W=Web based This schedule is tentative. All Course offerings are subject to minimum enrollmentElectrical Engineering Technology (EET) LONG RANGE SCHEDULE Course Number and Name Fall 2010 Spr

348

Compact range for variable-zone measurements  

DOE Patents (OSTI)

A compact range for testing antennas or radar targets includes a source for directing energy along a feedline toward a parabolic reflector. The reflected wave is a spherical wave with a radius dependent on the distance of the source from the focal point of the reflector. 2 figs.

Burnside, W.D.; Rudduck, R.C.; Yu, J.S.

1987-02-27T23:59:59.000Z

349

Dual harmonic Kelvin probe force microscopy at the grapheneliquid interface  

SciTech Connect

Kelvin probe force microscopy (KPFM) is a powerful technique for the determination of the contact potential difference (CPD) between an atomic force microscope tip and a sample under ambient and vacuum conditions. However, for many energy storage and conversion systems, including graphene-based electrochemical capacitors, understanding electrochemical phenomena at the solidliquid interface is paramount. Despite the vast potential to provide fundamental insight for energy storage materials at the nanoscale, KPFM has found limited applicability in liquid environments to date. Here, using dual harmonic (DH)-KPFM, we demonstrate CPD imaging of graphene in liquid. We find good agreement with measurements performed in air, highlighting the potential of DH-KPFM to probe electrochemistry at the grapheneliquid interface.

Collins, Liam; Rodriguez, Brian J., E-mail: brian.rodriguez@ucd.ie [School of Physics, University College Dublin, Belfield, Dublin 4 (Ireland); Conway Institute of Biomolecular and Biomedical Research, University College Dublin, Belfield, Dublin 4 (Ireland); Kilpatrick, Jason I.; Weber, Stefan A. L. [Conway Institute of Biomolecular and Biomedical Research, University College Dublin, Belfield, Dublin 4 (Ireland); Vlassiouk, Ivan V. [Energy and Transportation Science Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831 (United States); Tselev, Alexander; Jesse, Stephen; Kalinin, Sergei V. [Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831 (United States)

2014-03-31T23:59:59.000Z

350

Data:16c268be-a6d7-4736-9302-cc78149358f3 | Open Energy Information  

Open Energy Info (EERE)

subject matter experts. Jump to: navigation, search Loading... 1. Basic Information 2. Demand 3. Energy << Previous 1 2 3 Next >> Basic Information Utility name: Harmon Electric...

351

Life Cycle Greenhouse Gas Emissions of Utility-Scale Wind Power: Systematic Review and Harmonization  

SciTech Connect

A systematic review and harmonization of life cycle assessment (LCA) literature of utility-scale wind power systems was performed to determine the causes of and, where possible, reduce variability in estimates of life cycle greenhouse gas (GHG) emissions. Screening of approximately 240 LCAs of onshore and offshore systems yielded 72 references meeting minimum thresholds for quality, transparency, and relevance. Of those, 49 references provided 126 estimates of life cycle GHG emissions. Published estimates ranged from 1.7 to 81 grams CO{sub 2}-equivalent per kilowatt-hour (g CO{sub 2}-eq/kWh), with median and interquartile range (IQR) both at 12 g CO{sub 2}-eq/kWh. After adjusting the published estimates to use consistent gross system boundaries and values for several important system parameters, the total range was reduced by 47% to 3.0 to 45 g CO{sub 2}-eq/kWh and the IQR was reduced by 14% to 10 g CO{sub 2}-eq/kWh, while the median remained relatively constant (11 g CO{sub 2}-eq/kWh). Harmonization of capacity factor resulted in the largest reduction in variability in life cycle GHG emission estimates. This study concludes that the large number of previously published life cycle GHG emission estimates of wind power systems and their tight distribution suggest that new process-based LCAs of similar wind turbine technologies are unlikely to differ greatly. However, additional consequential LCAs would enhance the understanding of true life cycle GHG emissions of wind power (e.g., changes to other generators operations when wind electricity is added to the grid), although even those are unlikely to fundamentally change the comparison of wind to other electricity generation sources.

Dolan, S. L.; Heath, G. A.

2012-04-01T23:59:59.000Z

352

Supersymmetric inversion of effective-range expansions  

E-Print Network (OSTI)

A complete and consistent inversion technique is proposed to derive an accurate interaction potential from an effective-range function for a given partial wave in the neutral case. First, the effective-range function is Taylor or Pad\\'e expanded, which allows high precision fitting of the experimental scattering phase shifts with a minimal number of parameters on a large energy range. Second, the corresponding poles of the scattering matrix are extracted in the complex wave-number plane. Third, the interaction potential is constructed with supersymmetric transformations of the radial Schr\\"odinger equation. As an illustration, the method is applied to the experimental phase shifts of the neutron-proton elastic scattering in the $^1S_0$ and $^1D_2$ channels on the $[0-350]$ MeV laboratory energy interval.

Bikashkali Midya; Jrmie Evrard; Sylvain Abramowicz; O. L. Ramrez Surez; Jean-Marc Sparenberg

2015-01-16T23:59:59.000Z

353

Supersymmetric inversion of effective-range expansions  

E-Print Network (OSTI)

A complete and consistent inversion technique is proposed to derive an accurate interaction potential from an effective-range function for a given partial wave in the neutral case. First, the effective-range function is Taylor or Pad\\'e expanded, which allows high precision fitting of the experimental scattering phase shifts with a minimal number of parameters on a large energy range. Second, the corresponding poles of the scattering matrix are extracted in the complex wave-number plane. Third, the interaction potential is constructed with supersymmetric transformations of the radial Schr\\"odinger equation. As an illustration, the method is applied to the experimental phase shifts of the neutron-proton elastic scattering in the $^1S_0$ and $^1D_2$ channels on the $[0-350]$ MeV laboratory energy interval.

Midya, Bikashkali; Abramowicz, Sylvain; Surez, O L Ramrez; Sparenberg, Jean-Marc

2015-01-01T23:59:59.000Z

354

Aalborg Universitet Frequency Adaptive Selective Harmonic Control for Grid-Connected Inverters  

E-Print Network (OSTI)

Aalborg Universitet Frequency Adaptive Selective Harmonic Control for Grid-Connected Inverters Yang Harmonic Control for Grid-Connected Inverters. IEEE Transactions on Power Electronics, 1-13. 10.1109/TPEL Selective Harmonic Control for Grid-Connected Inverters Yongheng Yang, Student Member, IEEE, Keliang Zhou

Berning, Torsten

355

Second-and third-harmonic generation with vector Gaussian beams  

E-Print Network (OSTI)

Second- and third-harmonic generation with vector Gaussian beams Silvia Carrasco Department-harmonic generation (THG) in a nonlinear optical crystal illuminated by a vector Gaussian beam, i.e., a Gaussian beam phase shift of the transverse component and vanishes at points on the beam axis. Harmonic generation

Teich, Malvin C.

356

Novel Feeding Topologies for 2nd Harmonic Suppression in Broadband Microstrip Patch Antennas  

E-Print Network (OSTI)

Novel Feeding Topologies for 2nd Harmonic Suppression in Broadband Microstrip Patch Antennas *Il harmonic suppression property, while allowing for a broadband operation of microstrip patch antennas as well as a good 2nd harmonic suppression property. I. Introduction Microstrip patch antennas are very

Tentzeris, Manos

357

Regional Cooperation and Harmonization on EESL  

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

能效标准、标识和认证 能效标准、标识和认证 区域协调与互认 李铁男, 研究员 国宏美亚(北京)工业节能减排技术促进中心 主任 ISO/TC 257 节能量 主席 国宏美亚(北京)工业节能减排技术促进中心 Center for Industrial Energy Efficiency (CIEE) 能效标准、标识和认证的作用 能效标准、标识和认证区域合作关注点与障碍 最佳实践:亚洲能效标准和标识/认证有效建立和实 施障碍消除项目(BRESL ) 建议 主要内容 国宏美亚(北京)工业节能减排技术促进中心 Center for Industrial Energy Efficiency (CIEE) 识别节能产品

358

Third harmonic cavity design and RF measurements for the Frascati DA?NE collider  

Science Journals Connector (OSTI)

Third harmonic passive RF cavities have been proposed for installation in both rings of the DA?NE factory collider to improve the Touschek lifetime and to increase the Landau damping. This paper illustrates the design of the harmonic cavities. The main requirements were to obtain a relatively low R/Q factor and a quality factor Q as high as possible to satisfy beam dynamics requirements and to damp all the higher order mode (HOM) to a harmless level in order to avoid multibunch instabilities. A spherical shape of the cavity central body has been chosen as an optimum compromise between a high Q resonator and a low R/Q factor. HOM suppression has been provided by a ferrite ring damper designed for the superconducting cavities of the high energy ring of the KEK-B factory. The design and electromagnetic properties of the resonant modes have been studied with MAFIA and HFSS codes. Cavities have been made of aluminum and the RF measurements have been performed to characterize them. The measurements are in a good agreement with numerical simulations results, demonstrating a satisfactory HOM damping.

David Alesini; Roberto Boni; Alessandro Gallo; Fabio Marcellini; Mikhail Zobov; Mauro Migliorati; Luigi Palumbo

2004-09-07T23:59:59.000Z

359

Energy  

Science Journals Connector (OSTI)

Energy ... Scientific Challenges in Sustainable Energy Technology, by Nathan S. Lewis of the California Institute of Technology, summarizes data on energy resources and analyses the implications for human society. ... ConfChem Conference on Educating the Next Generation: Green and Sustainable ChemistrySolar Energy: A Chemistry Course on Sustainability for General Science Education and Quantitative Reasoning ...

John W. Moore

2008-07-01T23:59:59.000Z

360

Resonant second harmonic generation of a Gaussian electromagnetic beam in a collisional magnetoplasma  

SciTech Connect

Second harmonic generation of a right circularly polarized Gaussian electromagnetic beam in a magnetized plasma is investigated. The beam causes Ohmic heating of electrons and subsequent redistribution of the plasma, leading to self-defocusing. The radial density gradient, in conjunction with the oscillatory electron velocity, produces density oscillation at the wave frequency. The density oscillation beats with the oscillatory velocity to produce second harmonic current density, giving rise to resonant second harmonic radiation when the wave frequency is one-third of electron cyclotron frequency. The second harmonic field has azimuthal dependence as exp(i{theta}). The self-defocusing causes a reduction in the efficiency of harmonic generation.

Kaur, Sukhdeep; Sharma, A. K. [Centre for Energy Studies, Indian Institute of Technology Delhi, New Delhi 110016 (India); Salih, Hyder A. [Department of Applied Sciences, University of Baghdad, Baghdad (Iraq)

2009-04-15T23:59:59.000Z

Note: This page contains sample records for the topic "harmonics energy range" 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

Electrical Equipment Replacement: Energy Efficiency versus System Compatibility  

E-Print Network (OSTI)

upgrading electrical equipment to energy efficient models, including conductor sizing, overcurrent protective devices, grounding, and harmonics. The pages that follow provide guidance in the decision-making process when replacing electrical equipment... equipment. Several areas of compatibility must be addressed for equipment to work properly. Critical areas of concern are conductor sizing, overcurrent protection devices, grounding, and harmonics. Conductor Sizing Conductors are sized...

Massey, G. W.

2005-01-01T23:59:59.000Z

362

Calculation of HVDC converter noncharacteristic harmonics using digital time-domain simulation method  

SciTech Connect

In this paper, noncharacteristic harmonics of an HVdc converter station are calculated based on the use of digital time-domain simulation methods. An enhanced version of the Electromagnetic Transients Program (EMTP) is used for the studies. The noncharacteristic harmonics of interest are (1) the dc side triplen harmonics, and (2) the ac side second harmonic. Impacts of loading conditions, neutral filter, and converter firing angle on the dc side triplen harmonics are discussed. Effects of ac side network parameters, static VAR compensator (SVC), transformer half-cycle saturation, and Geomagnetically Induced Current (GIC) on the ac side second harmonic instability are also presented. This paper concludes that the digital time-domain simulation method provides significant flexibility for accurate prediction of (1) generation mechanism, and (2) adverse impacts of HVdc noncharacteristic harmonics.

Sarshar, A. [Trench Electric, Scarborough, Ontario (Canada)] [Trench Electric, Scarborough, Ontario (Canada); Iravani, M.R.; Li, J. [Univ. of Toronto, Ontario (Canada). Dept. of Electrical and Computer Engineering] [Univ. of Toronto, Ontario (Canada). Dept. of Electrical and Computer Engineering

1996-01-01T23:59:59.000Z

363

Freely floating structures trapping time-harmonic water waves (revisited)  

E-Print Network (OSTI)

We study the coupled small-amplitude motion of the mechanical system consisting of infinitely deep water and a structure immersed in it. The former is bounded above by a free surface, whereas the latter is formed by an arbitrary finite number of surface-piercing bodies floating freely. The mathematical model of time-harmonic motion is a spectral problem in which the frequency of oscillations serves as the spectral parameter. It is proved that there exist axisymmetric structures consisting of $N \\geq 2$ bodies; every structure has the following properties: (i) a time-harmonic wave mode is trapped by it; (ii) some of its bodies (may be none) are motionless, whereas the rest of the bodies (may be none) are heaving at the same frequency as water. The construction of these structures is based on a generalization of the semi-inverse procedure applied earlier for obtaining trapping bodies that are motionless although float freely.

Nikolay Kuznetsov; Oleg Motygin

2014-10-22T23:59:59.000Z

364

Energy companies becoming energy service providers.  

E-Print Network (OSTI)

?? Energy efficiency is important but an energy saving potential has yet to reach its full range. Energy services are means to reach that (more)

Dahl, Elin

2012-01-01T23:59:59.000Z

365

Density operator and entropy of the damped quantum harmonic oscillator  

E-Print Network (OSTI)

The expression for the density operator of the damped harmonic oscillator is derived from the master equation in the framework of the Lindblad theory for open quantum systems. Then the von Neumann entropy and effective temperature of the system are obtained. The entropy for a state characterized by a Wigner distribution function which is Gaussian in form is found to depend only on the variance of the distribution function.

A. Isar

2005-08-18T23:59:59.000Z

366

Application of harmonic analysis in the measuring technique of corrosion  

SciTech Connect

A technique for the determination of the rate of corrosion is described based on the harmonic analysis of the current of the electrode perturbed with relatively small amplitude undistorted sinusoidal alternating voltage. The measurement carried out in the vicinity of the corrosion potential permits the determination of both the corrosion current density and the Tafel slopes. The technique is illustrated using a study of the corrosion of various types of iron electrodes in acidic and neutral media.

Meszaros, L.; Meszaros, G.; Lengyel, B. (Hungarian Academy of Sciences, Budaoersi (Hungary). Research Lab. for Inorganic Chemistry)

1994-08-01T23:59:59.000Z

367

First observation of a near-harmonic vibrational nucleus  

Science Journals Connector (OSTI)

Evidence is presented for five closely spaced states in Cd118 near Eex?2 MeV, which are interpreted as a near-harmonic three-phonon quintuplet. Candidates for even higher-lying multiphonon states are also found. The experimental spectrum is compared with an anharmonic vibrator [or U(5) spectrum] and an interacting-boson-approximation calculation incorporating a two-particle, four-hole intruder configuration.

A. Aprahamian; D. S. Brenner; R. F. Casten; R. L. Gill; A. Piotrowski

1987-08-03T23:59:59.000Z

368

Extended range chemical sensing apparatus  

DOE Patents (OSTI)

An apparatus is described for sensing chemicals over extended range of concentrations. In particular, first and second sensors each having separate, but overlapping ranges for sensing concentrations of hydrogen are provided. Preferably, the first sensor is a MOS solid state device wherein the metal electrode or gate is a nickel alloy. The second sensor is a chemiresistor comprising a nickel alloy. 6 figures.

Hughes, R.C.; Schubert, W.K.

1994-01-18T23:59:59.000Z

369

Optimum Transmission Range for Wireless Ad Hoc Networks  

E-Print Network (OSTI)

to determine the optimal transmission range that gives the maximum efficiency of energy consumption. Different, and security issues, we inves- tigate the efficiency of energy consumption of wireless ad hoc networks there are studies on increasing battery capacity and reducing the energy consumption of system opera- tion and data

Deng, Jing

370

APS Long Range Operations Schedule  

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

Shutdown Planning Shutdown Planning Planning Templates Shutdown Planning Schedules: Current Shutdown Schedule Archives: 2006 - 2013 APS Long-Range Operations Schedule: 2014 Archives: 2013 | 2012 2011 | 2010 | 2009 | 2008 2007 | 2006 | 2005 | 2004 2003 | 2002 | 2001 | 2000 1999 | 1998 | 1997 | 1996 APS Long-Range Operations Schedule (Fiscal Year 2014) Alternate Formats: iCal | Excel | PDF APS Long-Range Operation Schedule 2013-3 2014-1 2014-2 Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep 1 1 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2 2 2 2

371

Energy  

Gasoline and Diesel Fuel Update (EIA)

Federal, State, local, and foreign governments, EIA survey respondents, and the media. For further information, and for answers to questions on energy statistics, please...

372

Energy  

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

Energy Energy Energy Express Licensing Accelerator-Driven Transmutation Of Spent Fuel Elements Express Licensing Acid-catalyzed dehydrogenation of amine-boranes Express Licensing Air Breathing Direct Methanol Fuel Cell Express Licensing Aligned Crystalline Semiconducting Film On A Glass Substrate And Method Of Making Express Licensing Anion-Conducting Polymer, Composition, And Membrane Express Licensing Apparatus for Producing Voltage and Current Pulses Express Licensing Biaxially oriented film on flexible polymeric substrate Express Licensing Corrosion Test Cell For Bipolar Plates Express Licensing Device for hydrogen separation and method Negotiable Licensing Durable Fuel Cell Membrane Electrode Assembly (MEA) Express Licensing Energy Efficient Synthesis Of Boranes Express Licensing

373

Sub-structure of laser generated harmonics reveals plasma dynamics of a relativistically oscillating mirror  

SciTech Connect

Theoretical and experimental investigations of the dynamics of a relativistically oscillating plasma slab reveal spectral line splitting in laser driven harmonic spectra, leading to double harmonic series. Both series are well characterized with harmonics arising by two fundamental frequencies. While a relativistic oscillation of the critical density drives the harmonic emission, the splitting is a result of an additional acceleration during the laser pulse duration. In comparison with the oscillatory movement, this acceleration is rather weak and can be described by a plasma shock wave driven by the pressure of light. We introduce particle in cell simulations and an analytical model explaining the harmonic line splitting. The derived analytical formula gives direct access between the splitting in the harmonic spectrum and the acceleration of the plasma surface.

Braenzel, J.; Schnrer, M.; Steinke, S.; Priebe, G.; Sandner, W. [Max-Born-Institut fr Nichtlineare Optik und Kurzzeitspektroskopie, Max Born Str. 2A, 12489 Berlin (Germany)] [Max-Born-Institut fr Nichtlineare Optik und Kurzzeitspektroskopie, Max Born Str. 2A, 12489 Berlin (Germany); Andreev, A. [Max-Born-Institut fr Nichtlineare Optik und Kurzzeitspektroskopie, Max Born Str. 2A, 12489 Berlin (Germany) [Max-Born-Institut fr Nichtlineare Optik und Kurzzeitspektroskopie, Max Born Str. 2A, 12489 Berlin (Germany); Vavilov State Optical Institute, Birzhevaya line 4, 199034 St. Petersburg (Russian Federation); Platonov, K. [Vavilov State Optical Institute, Birzhevaya line 4, 199034 St. Petersburg (Russian Federation)] [Vavilov State Optical Institute, Birzhevaya line 4, 199034 St. Petersburg (Russian Federation)

2013-08-15T23:59:59.000Z

374

High-order harmonic generation from C{sub 60}-rich plasma  

SciTech Connect

We performed systematic investigation of high-order harmonic generation from fullerene-rich laser-produced plasmas. We studied harmonic generation by varying several experimental parameters, such as the delay between the ablation and driving pulses, and divergence and polarization of the pump laser. Enhancement of harmonic yield is observed near 20 eV, which is attributed to the influence of a broadband plasmon resonance of C{sub 60} on the nonlinear optical response of fullerene-rich plasma. This increase in the harmonic intensity occurs despite the increased absorption by C{sub 60} at these wavelengths. Using simulations based on time-dependent density-functional theory, we confirm that this effect is due to the influence of collective excitations. We compare harmonic generation from fullerenes using lasers with 793 nm and 396 nm wavelengths, which show the influence of plasmon resonance on the conversion efficiency of high-order harmonics for different laser wavelengths.

Ganeev, R. A. [Centre Energie, Materiaux et Telecommunications, Institut National de la Recherche Scientifique, 1650 Lionel-Boulet, Varennes, Quebec, J3X 1S2 (Canada); Institute of Electronics, Uzbekistan Academy of Sciences, Akademgorodok, 33 Dormon Yoli Street, Tashkent 100125 (Uzbekistan); Elouga Bom, L. B.; Ozaki, T. [Centre Energie, Materiaux et Telecommunications, Institut National de la Recherche Scientifique, 1650 Lionel-Boulet, Varennes, Quebec, J3X 1S2 (Canada); Wong, M. C. H.; Brichta, J.-P.; Bhardwaj, V. R. [Department of Physics, University of Ottawa, 150 Louis Pasteur, Ottawa, Ontario, K1N 6N5 (Canada); Redkin, P. V. [Samarqand State University, Samarqand 703004 (Uzbekistan)

2009-10-15T23:59:59.000Z

375

Neutrino Telescope Array Letter of Intent: A Large Array of High Resolution Imaging Atmospheric Cherenkov and Fluorescence Detectors for Survey of Air Showers from Cosmic Tau Neutrinos in the PeV-EeV Energy Range  

E-Print Network (OSTI)

This Letter of Intent (LoI) describes the outline and plan for the Neutrino Telescope Array (NTA) project. High-energy neutrinos provide unique and indisputable evidence for hadronic acceleration, as well as a most accurate probe into the hidden sector of traditional astronomy or physics, such as dark matter. However, their extremely low flux and interaction cross section make their detection extraordinarily difficult. Recently, IceCube has reported astronomical neutrino candidates in excess of expectation from atmospheric secondaries, but is limited by the water Cherenkov detection method. A next generation high-energy neutrino telescope should be capable of establishing indisputable evidence for cosmic high-energy neutrinos. It should not only have orders-of-magnitude larger sensitivity, but also enough pointing accuracy to probe known or unknown astronomical objects, without suffering from atmospheric secondaries. The proposed installation is a large array of compound eye stations of imaging atmospheric Ch...

Sasaki, Makoto

2014-01-01T23:59:59.000Z

376

IPA Extensions Range: 025002AF  

E-Print Network (OSTI)

IPA Extensions Range: 0250­02AF This file contains an excerpt from the character code tables 0268IPA Extensions0250 025B LATIN SMALL LETTER OPEN E = LATIN SMALL LETTER EPSILON · lower-mid front

Erjavec, Toma?

377

Even-Harmonic Generation due to Beyond-Born-Oppenheimer Dynamics  

SciTech Connect

We calculate the harmonic spectrum generated by a model HD molecule in a strong laser pulse. The unequal nuclear masses lead to the emission of even harmonics, i.e., photon frequencies which are even multiples of the laser frequency. The effect does not occur within the Born-Oppenheimer approximation. In the high-frequency region, the even harmonics are almost of the same order of magnitude as the odd ones.

Kreibich, Thomas; Lein, Manfred; Engel, Volker; Gross, E. K. U.

2001-09-03T23:59:59.000Z

378

Discrete control of resonant wave energy devices  

Science Journals Connector (OSTI)

...time domain, which allows us to find non-harmonic...first applied to the wave energy area by Hoskin Nichols...Clement, A. H. 2002Wave energy in Europe: current status and perspectivesRenew. Sustain. Energy Rev. 6 405431 10.1016...

2012-01-01T23:59:59.000Z

379

Second-harmonic generation in subwavelength graphene waveguides  

E-Print Network (OSTI)

We suggest a novel approach for generating second-harmonic radiation in subwavelength graphene waveguides. We demonstrate that quadratic phase matching between the plasmonic guided modes of different symmetries can be achieved in a planar double-layer geometry when conductivity of one of the layers becomes spatially modulated. We predict theoretically that, owing to graphene nonlocal conductivity, the second-order nonlinear processes can be actualized for interacting plasmonic modes with an effective grating coupler to allow external pumping of the structure and output of the radiation at the double frequency.

Smirnova, Daria

2014-01-01T23:59:59.000Z

380

Associated Legendre Polynomials and Spherical Harmonics Computation for Chemistry Applications  

E-Print Network (OSTI)

Associated Legendre polynomials and spherical harmonics are central to calculations in many fields of science and mathematics - not only chemistry but computer graphics, magnetic, seismology and geodesy. There are a number of algorithms for these functions published since 1960 but none of them satisfy our requirements. In this paper, we present a comprehensive review of algorithms in the literature and, based on them, propose an efficient and accurate code for quantum chemistry. Our requirements are to efficiently calculate these functions for all non-negative integer degrees and orders up to a given number (science.

Limpanuparb, Taweetham

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "harmonics energy range" 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

Time-dependent harmonic oscillator confined in a box  

Science Journals Connector (OSTI)

In formulating the quantum-mechanical analog of the Fermi accelerator, one encounters the problem of determination of the eigenvalues of a harmonic oscillator confined to a finite region of space with time-dependent real or imaginary frequency. Here the invariants found by Lewis [J. Math. Phys. 9, 1976 (1968)] and by Lewis and Riesenfeld [J. Math. Phys. 10, 1403 (1969)] are also constants of motion; however, they are not very useful in obtaining the eigenvalues. In their place the Heisenberg equations of motion are used to describe the time evolution of this system and show how the spacing between neighboring eigenvalues changes as a function of time.

M. Razavy

1991-08-15T23:59:59.000Z

382

Maximizing the yield and cutoff of high-order harmonic generation from plasma plume  

SciTech Connect

We study high-order harmonic generation (HHG) from various lowly ionized laser plasmas. We study harmonic generation from targets of Al (Z=13) to Bi (Z=83). Varying the wavelength, chirp, and pulse duration of the femtosecond pump laser resulted in the change in the harmonic distribution, cutoff, and conversion efficiency of HHG. We also study the use of doubly charged ions, and resonances for some materials. We were able to obtain high HHG conversion efficiency and harmonic cutoff by implementing the above approaches and by observing the time-resolved spectra of the laser plasma.

Ganeev, Rashid A. [Institut National de la Recherche Scientifique, Energie, Materiaux et Telecommunications, 1650 Lionel-Boulet, Varennes, Quebec J3X 1S2 (Canada); Scientific Association Akadempribor, Academy of Sciences of Uzbekistan, Akademgorodok, Tashkent 100125 (Uzbekistan); Elouga Bom, Luc B.; Ozaki, Tsuneyuki [Institut National de la Recherche Scientifique, Energie, Materiaux et Telecommunications, 1650 Lionel-Boulet, Varennes, Quebec J3X 1S2 (Canada); Redkin, Pavel V. [Samarqand State University, Samarqand 703004 (Uzbekistan)

2007-11-15T23:59:59.000Z

383

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

Science Journals Connector (OSTI)

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

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

384

Second Harmonic Generation by Metamagnetics: Interplay of Electric and Magnetic Resonances  

Science Journals Connector (OSTI)

We present the first experimental study of the interplay of electric and magnetic resonances in a metamaterial to measure their independent contributions to second-harmonic generation....

Chandrasekar, Rohith; Emani, Naresh; Lagutchev, Alexei; Shalaev, Vladimir M; Kildishev, Alexander; Ciraci, Cristian; Smith, David R

385

E-Print Network 3.0 - accounting standards harmonization Sample...  

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

of Physics, University of Melbourne Collection: Materials Science ; Physics 6 The pitch of a mistuned harmonic: Evidence for a template Jian-Yu Lin and William M. Hartmann...

386

A Study of Harmonic Distortion Limit Change During the Reconfiguration Process of the Smart Grid.  

E-Print Network (OSTI)

??On the purpose to find out if harmonic distortion limits of customer installations will change during a smart grid reconfiguration process, the thesis was completed. (more)

Yang, Wenyue

2014-01-01T23:59:59.000Z

387

Second-harmonic generation in single-mode and multimode fibers  

Science Journals Connector (OSTI)

We report efficient second-harmonic generation in several commercially available telecommunication-grade single-mode and multimode optical fibers. We have investigated the effect of...

Saifi, M A; Andrejco, M J

1988-01-01T23:59:59.000Z

388

Power law decay of harmonic spectra in ultrarelativistic laser-plasma interactions  

SciTech Connect

Particle-in-cell simulations have been used to explore the transition from the m{sup -8/3} decay in the power emitted by high harmonics to a regime for which the harmonic power P{sub m{approx}}m{sup -p}, where m denotes the harmonic number and p=5/3 or, less commonly, p=4/3. The deviation from the p=8/3 spectrum is interpreted as a consequence of the degree to which emission at the plasma frequency and its harmonics contribute to the spectrum. The research reported here explores conditions under which these deviations arise.

Boyd, T. J. M. [Centre for Theoretical Physics, University of Essex, Colchester CO4 3SQ (United Kingdom); Ondarza-Rovira, R. [Instituto Nacional de Investigaciones Nucleares, A.P. 18-1027, Mexico 11801, Distrito Federal (Mexico)

2010-08-15T23:59:59.000Z

389

Data Center Efficiency and IT Equipment Reliability at Wider Operating Temperature and Humidity Ranges  

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

provides an overview of how operators of data centers can increase energy efficiency at wider operating temperatures and humidity ranges

390

Techno-economic analysis of a small size short range EES (electric energy storage) system for a PV (photovoltaic) plant serving a SME (small and medium enterprise) in a given regulatory context  

Science Journals Connector (OSTI)

Abstract Considering the case of small-medium size plants based on PV (photovoltaic), an analysis was developed in order to model, simulate and optimize an electricity storage system to be coupled to a small photovoltaic plant applied to an industry load, to calculate its profitability in a given regulatory context. The case study is the current Italian electricity market. The analysis was done on a small industrial plant in the area of Torino (North-West Italy), with its own photovoltaic plant connected to the public electrical grid. After an analysis of the present situation, the aim of the analysis is to understand the behaviour, from an economic point of view, of the self-consumption of renewable energy in case of a sudden deregulation of the market (switch off of feed in tariffs or RES (renewable energy system) kWh). The study includes a sensitivity analysis of the main technical and economic parameters in order to identify which of them have the greatest influence on economic performance, and therefore which parameters have to be considered with special care by the producers (technical and economic parameters) and the regulatory authorities (regulations) to decide and optimize the adoption of storage systems as a way to sustain the massive introduction of RES in the energy arena.

R. Scozzari; M. Santarelli

2014-01-01T23:59:59.000Z

391

Signal Fluctuations in the BIFI Range  

Science Journals Connector (OSTI)

Short?term and long?term fluctuation studies have been made in the BIFI Shallow X Water Acoustic Range which is 37 kyd in length. It is shown how time?smear analysis may be used to predict the extent of short?term signal fluctuation by taking into account the energy content of the front and tail of the received signal. The method is applied to an actual received signal with good results. Long?term fluctuation such as that due to tide is considered in terms of normal mode theory using the results of the time smear analysis to provide an estimate of the relative strengths of the modes. When applied to the BIFI range this method predicts that tidal effects will cause negligible fluctuations in the received signal due to the absence of modes other than the fundamental at this large range. This prediction was verified by experiment. At shorter ranges the interaction of several modes will cause relatively large fluctuations in the signal as the water depth changes during the tidal cycle.

W. G. Kanabis; B. Sussman

1972-01-01T23:59:59.000Z

392

INL Stand-Off Experiment Range will support critical national...  

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

INL Stand-Off Experiment Range will support critical national security missions Idaho Falls, ID - The U.S. Department of Energy has issued a Finding of No Significant Impact...

393

Echo-Enabled Harmonic Generation for Seeded FELs  

SciTech Connect

In the x-ray wavelengths, the two leading FEL concepts are the self-amplified spontaneous emission (SASE) configuration and the high-gain harmonic generation (HGHG) scheme. While the radiation from a SASE FEL is coherent transversely, it typically has rather limited temporal coherence. Alternatively, the HGHG scheme allows generation of fully coherent radiation by up-converting the frequency of a high-power seed laser. However, due to the relatively low up-frequency conversion efficiency, multiple stages of HGHG FEL are needed in order to generate x-rays from a UV laser. The up-frequency conversion efficiency can be greatly improved with the recently proposed echo-enabled harmonic generation (EEHG) technique. In this work we will present the concept of EEHG, and address some practically important issues that affect the performance of the seeding. We show how the EEHG can be incorporated in the FEL scheme and what is the expected performance of the EEHG seeded FEL. We will then briefly describe the first proof-of-principle EEHG experiment carried out at the Next Linear Collider Test Accelerator (NLCTA) at SLAC. We will also discuss latest advances in the echo-scheme approach, and refer to subsequent modifications of the original concept.

Stupakov, G.; /SLAC

2011-05-19T23:59:59.000Z

394

Perception of harmonic complexes in budgerigars (Melopsittacus undulatus)  

Science Journals Connector (OSTI)

Many studies have shown that birds have auditory spectral resolving powers similar to mammals but it has long been thought that they are superior in analyzing temporal information. To investigate the ability of budgerigars to process rapid temporal cues within complex waveforms birds were required to discriminate among harmonic complexes with identical long?term spectra but with temporal waveforms that differed in envelope shape or fine structure. Using operant conditioning procedures birds were trained to discriminate a highly peaked waveform created with all components starting in cosine phase from waveforms with a random selection of phase for each component creating a flatter envelope shape. In a second experiment birds discriminated between harmonic complexes that were identical in both spectrum and waveform envelope but that differed in the fine structure within fundamental periods. In both experiments birds could easily discriminate among waveforms with fundamental frequencies up to 800 Hz with some decrement in performance at higher frequencies. Humans are unable to perform similar tasks for frequencies higher than about 300 Hz suggesting that time processing of complex sounds in the avian auditory system may preserve information presented at rates at least three times the limits shown for humans. [Work supported by NIH DC00198.

Micheal L. Dent; Robert J. Dooling; Marjorie R. Leek

1999-01-01T23:59:59.000Z

395

Range Condition: Key to Sustained Ranch Productivity  

E-Print Network (OSTI)

Range condition, or a rangeland's "state of health," is an ecological measurement of the current condition of a range. Range condition is evaluated by the plant species composition. This leaflet explains the importance of range condition, how range...

McGinty, Allan; White, Larry D.

2000-04-25T23:59:59.000Z

396

PACIFIC SOUTHWEST Forest and Range  

E-Print Network (OSTI)

Donald, Philip M. 1973. Cutting a young-growth, mixed-conifer stand to California Forest Practice Act StandardsPACIFIC SOUTHWEST Forest and Range Experiment Station FOREST SERVICE U. S. DEPARTMENT OF AGRICULTURE P.O. BOX 245, BERKELEY, CALIFORNIA 94701 Cutting a Young-Growth, Mixed-Conifer Stand to California

Standiford, Richard B.

397

PACIFIC SOUTHWEST Forest and Range  

E-Print Network (OSTI)

C. Hathaway, both of the Black Hills National Forest, Custer, South Dakota, provided the necessaryPACIFIC SOUTHWEST Forest and Range FOREST SERVICE U. S.DEPARTMENT OF AGRICULTURE P.O. BOX 245, BERKELEY, CALIFORNIA 94701 Experiment Station USDA FOREST SERVICE RESEARCH PAPER PSW- 96 /1973 #12;CONTENTS

Standiford, Richard B.

398

Determination of the Acceptable Room Temperature Range for Local Cooling  

E-Print Network (OSTI)

Determination of the acceptable room temperature range is a key problem in satisfactory design of local cooling for energy savings. At the room temperatures ranging from neutral to warm, three sensitive body parts-the face, chest and back-were each...

Zhang, Y.; Zhao, R.

2006-01-01T23:59:59.000Z

399

New Mexico State University Department of Animal & Range Sciences  

E-Print Network (OSTI)

New Mexico State University Department of Animal & Range Sciences Number 299 September 24, 2012 Holechek is giving an invited paper, "How global trends in population, energy use, water use, and climate to officially dedicate the Southwest Center for Rangeland Sustainability at the Corona Range and Livestock

Johnson, Eric E.

400

Energy  

Office of Legacy Management (LM)

..) ".. ..) ".. _,; ,' . ' , ,; Depar?.me.nt ,of.' Energy Washington; DC 20585 : . ' , - $$ o"\ ' ~' ,' DEC ?;$ ;y4,,, ~ ' .~ The Honorable John Kalwitz , 200 E. Wells Street Milwaukee, W~isconsin 53202, . . i :. Dear,Mayor 'Kalwitz: " . " Secretary of Energy Hazel' O'Leary has announceha new,approach 'to,openness in " the Department of Ene~rgy (DOE) and its communications with'the public. In -. support of~this initiative, we areipleased to forward the enclosed information related to the Milwaukee Ai.rport site in your jurisdiction that performed work, for DOE orits predecessor agencies. information; use, and retention. ., This information .is provided for your '/ ,' DOE's Formerly Utilized Sites Remedial:'Action~'Prog&is responsible for ,"'

Note: This page contains sample records for the topic "harmonics energy range" 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

Implementation and modeling of a piezoelastic pendulum under a harmonic magnetic excitation  

Science Journals Connector (OSTI)

This paper reports both the experimental and theoretical realization of a piezoelastic (PZT) pendulum under harmonic magnetic excitation. The dynamic equations of the PZT pendulum are determined and the simulations are carried out for specific system ... Keywords: FFT, harmonic excitation, load resistance, phase portrait, piezoelastic pendulum, power

Yunus Uzun; Erol Kurt

2012-03-01T23:59:59.000Z

402

Demonstration of the 101st harmonic generated from a laser-produced manganese plasma  

SciTech Connect

We demonstrate the generation of the 101st harmonic (wavelength {lambda}=7.9 nm) from manganese plasma, which is generated using the plasma high-order harmonic technique. We also investigate the variation of the high-order harmonic distribution from the manganese plasma plume as a function of the prepulse and main pulse intensities. The harmonic cutoff was at the 31st order, for pump intensities below the barrier suppression intensity for singly charged Mn ions. However, by using higher prepulse and main pulse intensities, the harmonic cutoff was extended to the 101st order, with an appearance of second plateau for harmonics higher than the 31st order. In this case, the low-order harmonics decreased in intensity, or completely disappeared, and the spectrum for wavelengths longer than 27.6 nm was dominated by plasma line emission. The origin of the harmonics appearing at this short wavelength plateau is attributed to the interaction of the intense main pump laser field with doubly charged manganese ions.

Ganeev, R. A. [Institut National de la Recherche Scientifique, Centre Energie, Materiaux et Telecommunications, 1650 Lionel-Boulet, Varennes, Quebec, J3X 1S2 (Canada); Scientific Association Akadempribor, Academy of Sciences of Uzbekistan, Akademgorodok, Tashkent 100125 (Uzbekistan); Bom, L. B. Elouga; Kieffer, J.-C.; Ozaki, T. [Institut National de la Recherche Scientifique, Centre Energie, Materiaux et Telecommunications, 1650 Lionel-Boulet, Varennes, Quebec, J3X 1S2 (Canada); Suzuki, M.; Kuroda, H. [Institute for Solid State Physics, University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8581 (Japan)

2007-08-15T23:59:59.000Z

403

HARMONIC MEASURES FOR DISTRIBUTIONS WITH FINITE SUPPORT ON THE MAPPING CLASS GROUP ARE SINGULAR  

E-Print Network (OSTI)

HARMONIC MEASURES FOR DISTRIBUTIONS WITH FINITE SUPPORT ON THE MAPPING CLASS GROUP ARE SINGULAR, converges almost surely to a point in the space P MF of projective measured foliations on the surface. This defines a harmonic measure on P MF. Here, we show that when the initial distribution has finite support

Gadre, Vaibhav

404

Harmonization of initial estimates of shale gas life cycle greenhouse gas emissions for electric power generation  

Science Journals Connector (OSTI)

...and conventional gas are not significantly...harmonized estimates of life cycle GHG emissions...unconventional gas used for electricity...combined cycle turbine (NGCC) compared...explanation of the remaining harmonization...evaluated shale gas LCAs: inclusion of missing life cycle stages...

Garvin A. Heath; Patrick ODonoughue; Douglas J. Arent; Morgan Bazilian

2014-01-01T23:59:59.000Z

405

Degree-2 harmonics of the Earth's mass load estimated from GPS and Earth rotation data  

E-Print Network (OSTI)

Degree-2 harmonics of the Earth's mass load estimated from GPS and Earth rotation data Richard S the global network of GPS receivers. Here, the degree-2 mass load coefficients determined from GPS data harmonics of the Earth's mass load estimated from GPS and Earth rotation data, Geophys. Res. Lett., 31, L

Blewitt, Geoffrey

406

A Harmonic Potential Approach for Simultaneous Planning and Control of a Generic UAV Platform  

E-Print Network (OSTI)

A Harmonic Potential Approach for Simultaneous Planning and Control of a Generic UAV Platform Ahmad and control of a large variety of unmanned aerial vehicles (UAVs) is tackled using the harmonic potential to regulate the velocity of the UAV concerned in a manner that would propel the UAV to a target point while

Masoud, Ahmad A.

407

Modeling DFIG Using General Vector Representation in the Presence of Harmonics  

Science Journals Connector (OSTI)

In this paper, a doubly-fed induction generator (DFIG) wind turbine is modeled by using the general vector representation of voltage, current and magnetic flux in the presence of harmonics. The general vector representation provides insights into how ... Keywords: wind turbine, harmonics, general vector form, DFIG

Ziqiao Liu; Ahmed Abu-Hajar; David Wenzhong Gao

2013-04-01T23:59:59.000Z

408

Injection of harmonics generated in gas in a free-electron laser providing intense and  

E-Print Network (OSTI)

-ultraviolet to X-ray region. Recently, injection of a single-pass FEL by the third laser harmonic of a TiLETTERS Injection of harmonics generated in gas in a free-electron laser providing intense-electron lasers promise to extend this down to femtosecond timescales. The process by which free-electron lasers

Loss, Daniel

409

HARMONIC CASCADE FEL DESIGNS FOR LUX, A FACILTY FOR ULTRAFAST X-RAY SCIENCE  

E-Print Network (OSTI)

-electron laser (FEL) beamlines which use the har- monic cascade approach to produce coherent XUV & soft X-ray for an integrated system of ultrafast x-ray techniques and lasers, using laser-seeded harmonic cascade FEL's, rfHARMONIC CASCADE FEL DESIGNS FOR LUX, A FACILTY FOR ULTRAFAST X-RAY SCIENCE J. Corlett, W. Fawley

Wurtele, Jonathan

410

Harmonic filters influences regarding the power quality on high frequency electrothermal installation with electromagnetic induction  

Science Journals Connector (OSTI)

This paper presents a study regarding the functioning of a melting/hardening electrothermal installation with electromagnetic induction from the point of view of generated harmonics in the power distribution. The authors made simulations in scope of ... Keywords: electrothermal installation, harmonic, passive filters, static converter

Raluca Rob; Ioan Sora; Caius Panoiu; Manuela Panoiu

2010-01-01T23:59:59.000Z

411

Power line harmonic radiation observed by satellite: Properties and propagation through the ionosphere  

E-Print Network (OSTI)

Power line harmonic radiation observed by satellite: Properties and propagation through of power line harmonic radiation events observed by the low-altitude DEMETER spacecraft. Altogether, 88 with the largest intensities often occur off exact multiples of base power system frequency. This can be explained

Santolik, Ondrej

412

3D binary anti-commutative operadic Lax representations for harmonic oscillator  

E-Print Network (OSTI)

It is explained how the time evolution of the operadic variables may be introduced by using the operadic Lax equation. The operadic Lax representations for the harmonic oscillator are constructed in 3-dimensional binary anti-commutative algebras. As an example, an operadic Lax representation for the harmonic oscillator in the Lie algebra sl(2) is constructed.

Eugen Paal; Jyri Virkepu

2008-06-08T23:59:59.000Z

413

3D Harmonic Mapping and Tetrahedral Meshing of Brain Imaging Data  

E-Print Network (OSTI)

3D Harmonic Mapping and Tetrahedral Meshing of Brain Imaging Data Yalin Wang1 , Xianfeng Gu2 , Paul Department, Harvard University, Cambridge, MA, USA Abstract. We developed two techniques to address 3D volume algorithm finds a harmonic map from a 3-manifold to a 3D solid sphere and the second is a novel sphere

Thompson, Paul

414

Fast ion absorption of the high harmonic fast wave in the National Spherical Torus Experimenta...  

E-Print Network (OSTI)

Fast ion absorption of the high harmonic fast wave in the National Spherical Torus Experimenta... A; published online 23 April 2004 Ion absorption of the high harmonic fast wave in a spherical torus Y.-K. M profile, which promotes greater off-axis absorption where the fast ion population is small. Ion loss codes

Egedal, Jan

415

Fast ion absorption of the high harmonic fast wave in the National Spherical Torus Experiment a...  

E-Print Network (OSTI)

Fast ion absorption of the high harmonic fast wave in the National Spherical Torus Experiment a; published online 23 April 2004# Ion absorption of the high harmonic fast wave in a spherical torus #Y.­K. M, likely due to a larger # profile, which promotes greater off­axis absorption where the fast ion

Egedal, Jan

416

A hierarchical family of global analytic Born-Oppenheimer potential energy surfaces for the H+ H2 reaction ranging in quality from double-zeta to the complete basis set limit  

SciTech Connect

A hierarchical family of analytical Born-Oppenheimer potential energy surfaces has been developed for the H+ H2 system. Ab initio calculations of near full CI quality (converged to within? 1 mEh) were performed for a set of 4067 configurations with the aug-cc-pVDZ, aug-cc-pVTZ, and aug-cc-pVQZ basis sets. The complete basis set (CBS) limit energies were obtained using a highly accurate many-body basis set extrapolation scheme. Surfaces were fitted for the estimated complete basis set (CBS) limit, as well as for the aug-cc-pVDZ, aug-cc-pVTZ, and aug-cc-pVQZ basis sets using a robust new functional form. The mean unsigned fitting error for the CBS surface is a mere 0.0023 kcal/mol, and deviations for data not included in the fitting process are of similarly small magnitudes. Highly accurate calculations of the saddle point and van der Waals minimum configurations were performed using basis sets as large as aug-mcc-pV7Z, and these data show excellent agreement with the results of the extrapolated potential surface. The remaining errors from fitting, correlation treatment, and basis set incompleteness for the new CBS-limit surface are lower by over an order of magnitude compared to any prior analytic surface, and are all now significantly smaller than non-Born-Oppenheimer effects. We expect that this new family of potential surfaces will prove useful in studies elucidating the sensitivity of dynamical quantities to the quality of the potential surface.

Mielke, Steven L. (WASHINGTON STATE UNIV); Garrett, Bruce C. (BATTELLE (PACIFIC NW LAB)); Peterson, Kirk A. (WASHINGTON STATE UNIV TC)

2001-12-01T23:59:59.000Z

417

Modeling and analysis of aircraft non-linear components for harmonics analysis  

SciTech Connect

Modern commercial aircraft Electric Power Systems (EPS) include many nonlinear components which produce harmonics. The addition of all the current harmonics could result in a power system with unacceptable levels of voltage distortion. It is important to be able to predict the levels of voltage distortion at early program stages to correct any potential problems and avoid costly redesigns. In this paper the nature and sources of harmonic producing equipment are described. These sources of harmonics and their effect on aircraft power system operation are described. Models for various aircraft non-linear components are developed in this paper. These component models are used in a model of the Boeing 777 EPS which is used to calculate voltage harmonics for various airplane configurations and flight conditions. A description of this model and the models used for various components are given. Tests performed to validate these models are described. Comparison of experimental results with analytical model predictions are given.

Karimi, K.J. [Boeing Computer Services, Seattle, WA (United States); Voss, J. [Boeing Commercial Airplane Group, Seattle, WA (United States)

1995-12-31T23:59:59.000Z

418

Harmonic and interharmonic distortion analysis in the grid-connected wind electric generator  

Science Journals Connector (OSTI)

The operation of wind turbines has an impact on the power quality at the connected electric network. The integration of wind electric generators with the power grid becomes a headache for power engineers in several aspects. Harmonic distortion is one of the most important phenomena which affect the grid performance. This paper provides an in-depth discussion on harmonic and interharmonic distortion taking place on the low-voltage side of the wind generator, as well as in the power grid side. A case study, to determine where a significant amount of harmonic currents or voltages exists in the system, is performed using a power quality analyser. From these measurements and subsequent calculations, the levels of harmonics and interharmonics are analysed. It is found that the harmonic distortion is invariably present on the generator side as well as on the grid side, depending on the wind turbine technology.

V. Suresh Kumar; P.S. Kannan

2007-01-01T23:59:59.000Z

419

Experimental investigation and model development for a harmonic drive transmission.  

SciTech Connect

Harmonic drive transmissions (HDTs) are compact, low-backlash, high-ratio, high-resolution rotary motion transmissions. One application to benefit from these attributes is the revolute joint robot. Engineers at the Advanced Photon Source (APS) are investigating the use of this type of robot for the positioning of an x-ray detector; understanding the properties of the robot components is crucial to modeling positioner behavior. The robot bearing elements had been investigated previously, leaving the transmission as the missing component. While the benefits of HDTs are well known, the disadvantages, including fluctuating dissipation characteristics and nonlinear stiffness, are not understood as well. These characteristics can contribute uncontrolled dynamics to the overall robot performance. A dynamometer has been constructed at the APS to experimentally measure the HDT's response. Empirical torque and position data were recorded for multiple transmission load cases and input conditions. In turn, a computer model of the dynamometer HDT system was constructed to approximate the observed response.

Preissner, C.; Shu, D.; Royston, T. J.; Univ. of Illinois at Chicago

2007-01-01T23:59:59.000Z

420

Absorption by cold Fermi atoms in a harmonic trap  

E-Print Network (OSTI)

We study the absorption spectrum for a strongly degenerate Fermi gas confined in a harmonic trap. The spectrum is calculated using both the exact summation and also the Thomas-Fermi (TF) approximation. In the latter case, relatively simple analytical expressions are obtained for the absorption lineshape at large number of trapped atoms. At zero temperature, the approximated lineshape is characterized by a $(1-z^2)^{5/2}$ dependence which agrees well with the exact numerical calculations. At non-zero temperature, the spectrum becomes broader, although remains non-Gaussian as long as the fermion gas is degenerate. The changes in the trap frequency for an electronically excited atom can introduce an additional line broadening.

Gediminas Juzeliunas; Marius Masalas

2000-11-10T23:59:59.000Z

Note: This page contains sample records for the topic "harmonics energy range" 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

High performance control of harmonic instability from HVDC link system  

SciTech Connect

This paper investigates the usefulness of novel control method for HVDC link system which suffers from severe condition of low order harmonic. This control scheme is used the feedforward control method which is directly controlled dc current at dc link system. The studies of this paper are aimed to improving the dynamic response of HVdc link system in disturbances such as faults. To achieve those objectives, digital time domain simulations are employed by the electro magnetic transient program for dc system (EMTDC). This method results in stable recovery from faults at both rectifier and inverter terminal busbars for a HVdc system that is inherently unstable. It has been found to be robust and control performance has been enhanced.

Min, W.K.; Yoo, M.H. [Korea Electric Power Research Inst., Taejeon (Korea, Republic of)

1995-12-31T23:59:59.000Z

422

Distributed Energy | Department of Energy  

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

Distributed Distributed Energy Distributed Energy Distributed energy consists of a range of smaller-scale and modular devices designed to provide electricity, and sometimes also thermal energy, in locations close to consumers. They include fossil and renewable energy technologies (e.g., photovoltaic arrays, wind turbines, microturbines, reciprocating engines, fuel cells, combustion turbines, and steam turbines); energy storage devices (e.g., batteries and flywheels); and combined heat and power systems. Distributed energy offers solutions to many of the nation's most pressing energy and electric power problems, including blackouts and brownouts, energy security concerns, power quality issues, tighter emissions standards, transmission bottlenecks, and the desire for greater control over energy costs.

423

Monte-Carlo Simulation of High Harmonic Fast Wave Heating of Neutral Beam Ions and Effects on MHD Stability: Validation With Experiments  

SciTech Connect

Experimentally, during fast wave (FW) radio frequency (rf) heating in DIII-D L-mode discharges, strong acceleration of neutral beam (NB) deuterium beam ions has been observed. Significant effects on the n/m = 1/1 sawtooth stability are also seen. Simulations using the Monte-Carlo Hamiltonian code ORBIT-RF, coupled to the TORIC full wave code, predict beam ion tails up to a few hundred keV, in agreement with the experiment. The simulations and experiment both clearly show a much greater efficiency for 4th harmonic FW heating than for 8th harmonic heating. Simple analyses of the kinetic contribution to the ideal magnetohydrodynamic (MHD) potential energy from energetic beam ions generated by FW heating yields reasonable consistency with the observations. A more detailed analysis shows a more complicated picture, however. Other physics effects such as geometry, plasma rotation, and the presence of a free boundary, play a significant role.

Chan, V. S.; Turnbull, A. D.; Choi, M.; Chu, M. S.; Lao, L. L. [General Atomics, P.O. Box 85608, San Diego, California 92186-5608 (United States)

2006-11-30T23:59:59.000Z

424

APS Long Range Operations Schedule  

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

2) 2) Alternate Formats: iCal | Excel | PDF APS Long-Range Operation Schedule 2011-3 2012-1 2012-2 Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep 1 1 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2 2 2 2 3 3 3 3 3 3 3 3 3 3 3 3 4 4 4 4 4 4 4 4 4 4 4 4 5 5 5 5 5 5 5 5 5 5 5 5

425

APS Long Range Operations Schedule  

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

1) 1) Alternate Formats: iCal | Excel | PDF APS Long-Range Operation Schedule 2010-3 2011-1 2011-2 Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep 1 1 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2 2 2 2 3 3 3 3 3 3 3 3 3 3 3 3 4 4 4 4 4 4 4 4 4 4 4 4 5 5 5 5 5 5 5 5 5 5 5 5

426

APS Long Range Operations Schedule  

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

3) 3) Alternate Formats: iCal | Excel | PDF APS Long-Range Operation Schedule 2012-3 2013-1 2013-2 Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep 1 1 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2 2 2 2 3 3 3 3 3 3 3 3 3 3 3 3 4 4 4 4 4 4 4 4 4 4 4 4 5 5 5 5 5 5 5 5 5 5 5 5

427

Normal Growth of Range Cattle.  

E-Print Network (OSTI)

TEXAS AGRICULTURAL EXPERIMENT STATION A. B. CONNER, DIRECTOR College Station, Brazos County, Texas BULLETIN NO. 409 MARCH, 1930 DIVISION OF RANGE ANIMAL HUSBANDRY - Lr9RARv' *n+!nmt">3~roql f', 44+lpl,9-' . 16' , ,, ..!c?! cq!!f?~c nt... of these special problems, the Texas Station presents in this Bulletin a study of the growth in weight and in measurements which actually took place in the calves born during nine years at Substation No. 14, the Ranch Experiment Station. This study so far has...

Lush, Jay L. (Jay Laurence)

1930-01-01T23:59:59.000Z

428

A Millimeter-wave Harmonic Optoelectronic Mixer based on InAlAs/InGaAs Metamorphic HEMT  

E-Print Network (OSTI)

A Millimeter-wave Harmonic Optoelectronic Mixer based on InAlAs/InGaAs Metamorphic HEMT ChangAs substrate as a harmonic optoelectronic mixer. The fabricated metamorphic HEMT simultaneously performs photodetection at 1.55µµµµm lightwave and harmonic optoelectronic up-conversion into millimeter-wave band

Choi, Woo-Young

429

Characteristics of InP HEMT Harmonic Optoelectronic Mixers and Their Application to 60GHz Radio-on-Fiber Systems  

E-Print Network (OSTI)

. #12;Characteristics of InP HEMT Harmonic Optoelectronic Mixers and Their Application to 60GHz device characteristics of InP HEMT as a harmonic optoelectronic mixer. A single InP HEMT device performs is successfully demonstrated using InP HEMT harmonic optoelectronic mixer. Index Terms -- millimeter-wave, radio

Choi, Woo-Young

430

The pitch of a mistuned harmonic: Evidence for a template Jian-Yu Lin and William M. Hartmann  

E-Print Network (OSTI)

The pitch of a mistuned harmonic: Evidence for a template model Jian-Yu Lin and William M. Hartmann as a separate entity if the harmonic is slightly mistuned from its correct frequency. Pitch matching experiments show that the pitch of such a mistuned harmonic differs systematically from its frequency. The shift

431

Journal of Sound and Vibration (1990) 141(3),465-484 THE HARMONIC RESPONSE OF UNIFORM BEAMS ON  

E-Print Network (OSTI)

Journal of Sound and Vibration (1990) 141(3),465-484 THE HARMONIC RESPONSE OF UNIFORM BEAMS beams on multiple supports. The beam may be excited by single or multi-point harmonic forces or moments-rotation coupling. Use is made of the harmonic response function for an infinite beam subjected to a single

Yaman, Yavuz

432

Benefits of creating a cross-country data framework for energy efficiency  

SciTech Connect

As manufacturers now sell a similar range of consumer electronics and home appliances to major markets around the world, the task of identifying a products energy efficiency rating has usually been the responsibility of each country and its respective government agency. This has led to a multitude of energy efficiency testing procedures, ratings, and certifications, resulting in disparate data being captured on identical products. Furthermore, lack of consistent product identification criteria means product energy performance is not easily connected to relevant information about the product such as market availability, price or real world energy consumption. This paper presents a new data standard for reporting energy performance and related product information that can be adopted internationally. To inform the development of this standard, we explore the existing energy efficiency market data for the two example products of TVs and Room Air Conditioners. This paper discusses current/future use cases of appliance level energy efficiency data across all stakeholders, including consumers, retailers/manufacturers, global standards organizations, third party service providers, and regulatory agencies. It also explains the key benefits of moving to a common international data framework for energy efficiency, such as: 1) a centralized product information repository for comparing energy use, ratings/certifications, and pricing data 2) improved access to relevant consumer electronics and appliance data to facilitate new policy development and harmonization across markets 3) enablement of retailers and other third parties to embed actionable energy efficiency information as part of the consumer experience.

Katzman, Alex [SEAD Energy Efficiency Data Access Project, Enervee (United States)] [SEAD Energy Efficiency Data Access Project, Enervee (United States); McNeil, Michael [Lawrence Berkeley National Lab., CA (United States)] [Lawrence Berkeley National Lab., CA (United States); Pantano, Stephen [Collaborative Labeling and Appliance Standards Program (United States)] [Collaborative Labeling and Appliance Standards Program (United States)

2013-10-15T23:59:59.000Z

433

The Benefits of Creating a Cross-Country Data Framework for Energy Efficiency  

SciTech Connect

As manufacturers now sell a similar range of consumer electronics and home appliances to major markets around the world, the task of identifying a product?s energy efficiency rating has usually been the responsibility of each country and its respective government agency. This has led to a multitude of energy efficiency testing procedures, ratings, and certifications, resulting in disparate data being captured on identical products. Furthermore, lack of consistent product identification criteria means product energy performance is not easily connected to relevant information about the product such as market availability, price or real world energy consumption. This paper presents a new data standard for reporting energy performance and related product information that can be adopted internationally. To inform the development of this standard, we explore the existing energy efficiency market data for the two example products of TVs and Room Air Conditioners. This paper discusses current/future use cases of appliance level energy efficiency data across all stakeholders, including consumers, retailers/manufacturers, global standards organizations, third party service providers, and regulatory agencies. It also explains the key benefits of moving to a common international data framework for energy efficiency, such as: 1) a centralized product information repository for comparing energy use, ratings/certifications, and pricing data 2) improved access to relevant consumer electronics and appliance data to facilitate new policy development and harmonization across markets 3) enablement of retailers and other third parties to embed actionable energy efficiency information as part of the consumer experience.

Katzman, Alex; McNeil, Michael; Pantano, Stephen

2013-09-11T23:59:59.000Z

434

Theoretical studies of high-order harmonic generation: Effects of symmetry, degeneracy, and orientation  

SciTech Connect

Using a quantum-mechanical three-step model, we present numerical calculations of the high-order harmonic generation from four polyatomic molecules. Ethylene (C{sub 2}H{sub 4}) serves as an example where orbital symmetry directly affects the harmonic yield. We treat the case of methane (CH{sub 4}) to address the high-order harmonic generation resulting from a molecule with degenerate orbitals. To this end we illustrate how the single-orbital contributions show up in the total high-order harmonic signal. This example illustrates the importance of adding coherently the amplitude contributions from the individual degenerate orbitals. Finally, we study the high-order harmonic generation from propane (C{sub 3}H{sub 8}) and butane (C{sub 4}H{sub 10}). These two molecules, being extended and far from spherical in structure, produce harmonics with nontrivial orientational dependencies. In particular, propane can be oriented so that very high-frequency harmonics are favored, and thus the molecule contains prospects for the generation of uv attosecond pulses.

Madsen, C. B.; Madsen, L. B. [Lundbeck Foundation Theoretical Center for Quantum System Research, Department of Physics and Astronomy, University of Aarhus, 8000 Aarhus C (Denmark)

2007-10-15T23:59:59.000Z

435

Integro-differential modeling of ICRH wave propagation and damping at arbitrary cyclotron harmonics and wavelengths in tokamaks  

SciTech Connect

Both at low and higher cyclotron harmonics, properly accounting for finite Larmor radius effects is crucial in many ion cyclotron resonance frequency heating scenarios creating high energy tails. The present paper discusses ongoing work to extend the 1D TOMCAT wave equation solver [D. Van Eester and R. Koch, Plasma Phys. Contr. Fusion 40 (1998) 1949] to arbitrary harmonics and arbitrary wavelengths. Rather than adopting the particle position, the guiding center position is used as the independent variable when writing down an expression for the dielectric response. Adopting a philosophy originally due to Kaufman [A.N. Kaufman, Phys. Fluids 15 (1972) 1063], the relevant dielectric response in the Galerkin formalism is written in a form where the electric field and the test function vector appear symmetrically, which yields a power balance equation that guarantees non-negative absorption for any wave type for Maxwellian plasmas. Moreover, this choice of independent variable yields intuitive expressions that can directly be linked to the corresponding expressions in the RF diffusion operator. It also guarantees that a positive definite power transfer from waves to particles is ensured for any of the wave modes in a plasma in which all populations have a Maxwellian distribution, as is expected from first principles. Rather than relying on a truncated Taylor series expansion of the dielectric response, an integro-differential approach that retains all finite Larmor radius effects [D. Van Eester and E. Lerche, Plasma Phys. Control. Fusion 55 (2013) 055008] is proposed.

Van Eester, D.; Lerche, E. [LPP-ERM/KMS, Association Euratom-Belgian State, TEC Partner, Brussels (Belgium)

2014-02-12T23:59:59.000Z

436

Third harmonic stimulated Raman backscattering of laser in a magnetized plasma  

SciTech Connect

This article studies the nonlinear Raman shifted third harmonic backscattering of an intense extraordinary laser wave through a homogenous transversely magnetized cold plasma. Due to the relativistic nonlinearity, the plasma dynamic is modified in the presence of transversely magnetic field, and this can generate the third harmonic scattered wave and an electrostatic upper hybrid wave via the Raman scattering process. Using the nonlinear wave equation, the mechanism of nonlinear third harmonic Raman scattering is discussed in detail to obtain the maximum growth rate of instability in the mildly relativistic regime. The growth rate decreases as the static magnetic field increases. It also increases with the pump wave amplitude.

Paknezhad, Alireza [Physics Department, Shabestar Branch, Islamic Azad University, Shabestar (Iran, Islamic Republic of)] [Physics Department, Shabestar Branch, Islamic Azad University, Shabestar (Iran, Islamic Republic of); Dorranian, Davoud [Laser Lab., Plasma Physics Research Center, Science and Research Branch, Islamic Azad University, Tehran (Iran, Islamic Republic of)] [Laser Lab., Plasma Physics Research Center, Science and Research Branch, Islamic Azad University, Tehran (Iran, Islamic Republic of)

2013-09-15T23:59:59.000Z

437

Inhibition of Linear Absorption in Opaque Materials Using Phase-Locked Harmonic Generation  

Science Journals Connector (OSTI)

We theoretically predict and experimentally demonstrate inhibition of linear absorption for phase and group velocity mismatched second- and third-harmonic generation in strongly absorbing materials, GaAs, in particular, at frequencies above the absorption edge. A 100-fs pump pulse tuned to 1300nm generates 650 and 435nm second- and third-harmonic pulses that propagate across a 450-?m-thick GaAs substrate without being absorbed. We attribute this to a phase-locking mechanism that causes the pump to trap the harmonics and to impress on them its dispersive properties.

Marco Centini; Vito Roppo; Eugenio Fazio; Federico Pettazzi; Concita Sibilia; Joseph W. Haus; John V. Foreman; Neset Akozbek; Mark J. Bloemer; Michael Scalora

2008-09-11T23:59:59.000Z

438

Generation of high-power tunable terahertz-radiation by nonrelativistic beam-echo harmonic effect  

SciTech Connect

A new type of terahertz radiation source based on the nonrelativistic electron beam-wave interaction is proposed. Here, the beam echo harmonic effect is applied to a traveling wave tube like device. The scheme is configured as a combination of a frequency multiplier and amplifier with, for instance, W-band (millimeter wave) input signals and terahertz output power. A one-dimensional model of this device shows that a 10th order harmonic-wave can be generated while other harmonic waves are suppressed. The device only requires a readily available input source (W-band), and the output frequency can be tuned continuously over a wide band.

Gong Huarong; Xu Jin; Wei Yanyu; Gong Yubin [National Key Laboratory of Science and Technology on Vacuum Electronics, School of Physical Electronics, University of Electronic Science and Technology of China, Chengdu, Sichuan 610054 (China); Travish, Gil [Department of Physics and Astronomy, University of California, Los Angeles, California 90095 (United States); Feng Jinjun [Vacuum Electronics National Laboratory, Vacuum Electronics research Institute, Beijing 100016 (China)

2013-01-15T23:59:59.000Z

439

Analysis of second harmonic instability for the Chateauguay HVDC/SVC scheme  

SciTech Connect

The Chateauguay HVDC back-to-back scheme with interconnections to the 765 kV transmission to U.S.A. and to Beauharnois generators can exhibit, under certain operating conditions, second harmonic resonance problems. This paper presents a thorough analysis of the problem using an eigenvalue and frequency domain approach. The analysis explains the mechanism of exciting the second harmonic instability by the presence of HVDC converters. The influence of changing the control parameters of the static VAR compensatory at the Chateauguay terminal is also studied. Finally, an assessment is made for the effectiveness of present countermeasure schemes, namely; the auxiliary dc stabilizing controls and the installation of second harmonic filters.

Hammad, A.E. (ABB Power Systems, 5401-Baden (CH))

1992-01-01T23:59:59.000Z

440

Range-gated field disturbance sensor with range-sensitivity compensation  

DOE Patents (OSTI)

A field disturbance sensor operates with relatively low power, provides an adjustable operating range, is not hypersensitive at close range, allows co-location of multiple sensors, and is inexpensive to manufacture. The sensor includes a transmitter that transmits a sequence of transmitted bursts of electromagnetic energy. The transmitter frequency is modulated at an intermediate frequency. The sequence of bursts has a burst repetition rate, and each burst has a burst width and comprises a number of cycles at a transmitter frequency. The sensor includes a receiver which receives electromagnetic energy at the transmitter frequency, and includes a mixer which mixes a transmitted burst with reflections of the same transmitted burst to produce an intermediate frequency signal. Circuitry, responsive to the intermediate frequency signal indicates disturbances in the sensor field. Because the mixer mixes the transmitted burst with reflections of the transmitted burst, the burst width defines the sensor range. The burst repetition rate is randomly or pseudorandomly modulated so that bursts in the sequence of bursts have a phase which varies. 8 figs.

McEwan, T.E.

1996-05-28T23:59:59.000Z

Note: This page contains sample records for the topic "harmonics energy range" 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

Storage of Solar Energy  

Science Journals Connector (OSTI)

Energy storage provides a means for improving the performance and efficiency of a wide range of energy systems. It also plays an important role in energy conservation. Typically, energy storage is used when there...

H. P. Garg

1987-01-01T23:59:59.000Z

442

Studies of thin films and surfaces with optical harmonic generation and electron spectroscopy  

SciTech Connect

Optical second harmonic generation (SHG) and sum frequency generation (SFG) were used to study C{sup 60} thin solid films (low energy ED forbidden electronic excitations), and electron spectroscopy was used to study organic overlayers (xylenes) on Pt(111). Theory of SHG from a thin film is described in terms of surface and bulk contributions as well as local and nonlocal contributions to the optical nonlinearities. (1)In situ SHG data on C{sub 60} films during UHV film growth can be described in terms of only nonlocal contributions to both surface and bulk nonlinear susceptibilities. Microscopic origin of SHG response is discussed in terms of electric quadrupole and ED transitions of C{sub 60}. (2)Adsorption and thermal decomposition of ortho- and para-xylene on Pt(111) is studied using HREELS, LEED, AES, and thermal desorption spectroscopy. We have observed preferential decomposition of the methyl groups which leads to distinct decomposition pathways for ortho- and para-xylene on Pt(111).

Wilk, D.E.

1996-01-01T23:59:59.000Z

443

Laser-Induced Damage in DKDP Crystals under Simultaneous Exposure to Laser Harmonics  

SciTech Connect

While KDP and DKDP crystals remain the only viable solution for frequency conversion in large aperture laser systems in the foreseeable future, our understanding of damage behavior in the presence of multiple colors is very limited. Such conditions exist during normal operation where, for third harmonic generation, 1{omega}, 2{omega} and 3{omega} components are present with different energy ratios as they propagate inside the crystal. The objective of this work is to shed light into the damage behavior of frequency conversion crystals during operational conditions as well as probe the fundamental mechanisms of damage initiation. We have performed a series of experiments to quantify the damage performance of pristine (unconditioned) DKDP material under simultaneous exposure to 2{omega} and 3{omega} laser pulses from a 3-ns Nd:YAG laser system as a function of the laser influences at each frequency. Results show that simultaneous dual wavelength exposure leads to a much larger damage density as compared to the total damage resulting from separate exposure at each wavelength. Furthermore, under such excitation conditions, the damage performance is directly related to and can be predicted from the damage behavior of the crystal at each wavelength separately while the mechanism and type of defects responsible for damage initiation are shown to be the same at both 2{omega} and 3{omega} excitation.

Negres, R A; DeMange, P; Radousky, H B; Demos, S G

2005-10-28T23:59:59.000Z

444

Measurement of higher-order harmonic azimuthal anisotropy in PbPb collisions at sqrt{s_{NN}} = 2.76 TeV  

SciTech Connect

Measurements are presented by the CMS Collaboration at the Large Hadron Collider (LHC) of the higher-order harmonic coefficients that describe the azimuthal anisotropy of charged particles emitted in sqrt(s[NN]) = 2.76 TeV PbPb collisions. Expressed in terms of the Fourier components of the azimuthal distribution, the n = 3-6 harmonic coefficients are presented for charged particles as a function of their transverse momentum (0.3 < pt < 8.0 GeV), collision centrality (0-70%), and pseudorapidity (abs(eta) < 2.0). The data are analyzed using the event plane, multiparticle cumulant, and Lee-Yang zeros methods, which provide different sensitivities to initial-state fluctuations. Taken together with earlier LHC measurements of elliptic flow (n = 2), the results on higher-order harmonic coefficients develop a more complete picture of the collective motion in high-energy heavy-ion collisions and shed light on the properties of the produced medium.

Chatrchyan, Serguei; et al.,

2014-04-01T23:59:59.000Z

445

Range-Separated Brueckner Coupled Cluster Doubles Theory  

Science Journals Connector (OSTI)

We introduce a range-separation approximation to coupled cluster doubles (CCD) theory that successfully overcomes limitations of regular CCD when applied to the uniform electron gas. We combine the short-range ladder channel with the long-range ring channel in the presence of a Bruckner renormalized one-body interaction and obtain ground-state energies with an accuracy of 0.001 a.u./electron across a wide range of density regimes. Our scheme is particularly useful in the low-density and strongly correlated regimes, where regular CCD has serious drawbacks. Moreover, we cure the infamous overcorrelation of approaches based on ring diagrams (i.e., the particle-hole random phase approximation). Our energies are further shown to have appropriate basis set and thermodynamic limit convergence, and overall this scheme promises energetic properties for realistic periodic and extended systems which existing methods do not possess.

James J. Shepherd; Thomas M. Henderson; Gustavo E. Scuseria

2014-04-03T23:59:59.000Z

446

Energy flux of timeharmonic waves in anisotropic dissipative media  

E-Print Network (OSTI)

Energy flux of time­harmonic waves in anisotropic dissipative media Vlastislav Ÿ Cerven 2, Czech Republic. E­mail vcerveny@seis.karlov.m#.cuni.cz Summary The energy flux of time to consider the average energy flux, which is real­valued and time­independent. An extension

Cerveny, Vlastislav

447

Bending waves due to a moving harmonic force.  

Science Journals Connector (OSTI)

In many structurally induced and flow?induced vibration problems the harmonic forcing function is not stationary but moves with a velocity V 0. The effect of the forcing function velocity V 0 upon the free vibrational wave?number characteristics of a membrane and a plate is analyzed. The Mach numberM is defined to be the ratio of the velocity V 0 to the wave speed of the bending waves. For the membrane the effect of the Mach number is to increase the wave number (shorter wavelength) ahead of the forcing function and to decrease the wave number (longer wavelength) behind it. At supersonic speeds no disturbances travel ahead of the forcing function and both wave numbers lead to trailing waves. These results are equivalent to the classical Doppler?shifted results. The results of the plate are more complex. The right and left traveling waves retain their basic properties with the magnitude of the wave number changing monotomically as a function of the Mach numberM. The near?field decaying disturbances also retain their basic properties but immediately obtain components that induce the decaying disturbances to become left traveling waves with decaying components. At Mach numbers greater than 2 these disturbances become pure waves trailing without any decaying factor. The importance of each of these components as a function of the Mach number is discussed.

Mauro Pierucci

1992-01-01T23:59:59.000Z

448

A continuous-wave second harmonic gyrotron oscillator at 460 GHz  

E-Print Network (OSTI)

We report the short pulse and CW operation of a 460 GHz gyrotron oscillator both at the fundamental (near 230 GHz) and second harmonic (near 460 GHz) of electron cyclotron resonance. During operation in a complete CW regime ...

Hornstein, Melissa K. (Melissa Kristen), 1977-

2005-01-01T23:59:59.000Z

449

Two-color phase control of high-order harmonic generation in intense laser fields  

E-Print Network (OSTI)

We present a time-independent generalized Floquet approach for nonperturbative treatment of high-order harmonic generation (HG) in intense onea (i) determination of the complex quasienergy eigenvalue and eigenfunction by means of the non...

Telnov, Dmitry A.; Wang, Jingyan; Chu, Shih-I

1995-11-01T23:59:59.000Z

450

Bulk viscosity-driven suppression of shear viscosity effects on the flow harmonics at RHIC  

E-Print Network (OSTI)

The interplay between shear and bulk viscosities on the flow harmonics, $v_n$'s, at RHIC is investigated using the newly developed relativistic 2+1 hydrodynamical code v-USPhydro that includes bulk and shear viscosity effects both in the hydrodynamic evolution and also at freeze-out. While shear viscosity is known to attenuate the flow harmonics, we find that the inclusion of bulk viscosity decreases the shear viscosity-induced suppression of the flow harmonics bringing them closer to their values in ideal hydrodynamical calculations. Depending on the value of the bulk viscosity to entropy density ratio, $\\zeta/s$, in the quark-gluon plasma, the bulk viscosity-driven suppression of shear viscosity effects on the flow harmonics may require a re-evaluation of the previous estimates of the shear viscosity to entropy density ratio, $\\eta/s$, of the quark-gluon plasma previously extracted by comparing hydrodynamic calculations to heavy ion data.

J. Noronha-Hostler; J. Noronha; F. Grassi

2014-06-12T23:59:59.000Z

451

A proposed framework for harmonization of the veterinary medicine curriculum in Latin America  

E-Print Network (OSTI)

A framework for curriculum harmonization at veterinary colleges in Latin America is proposed. The framework was developed considering the expansion of knowledge, particularly in veterinary public health. Also described are the generic or process...

Ortega Meyer, Bruno de Jesus

2009-05-15T23:59:59.000Z

452

Determination of radio-frequency phase in harmonic frequency modulation spectroscopy  

Science Journals Connector (OSTI)

We have devised two useful schemes to determine the rf phase of the modulation waveforms in harmonic FM spectroscopy, a novel technique that we reported recently for the removal of...

Shum, Chi Man; Whittaker, Edward A

1991-01-01T23:59:59.000Z

453

Harmonic wavelet analysis of modulated tunable diode laser absorption spectroscopy signals  

E-Print Network (OSTI)

of the direct absorption characteristics of atomic or molecular absorption lines. This is accomplishedHarmonic wavelet analysis of modulated tunable diode laser absorption spectroscopy signals Hong analyses of tunable diode laser absorption spectroscopy signals were performed. The absorption spectroscopy

Cheng, Harry H.

454

Spatiotemporal representation of the pitch of harmonic complex tones in auditory nerve  

E-Print Network (OSTI)

The pitch of harmonic complex tones plays an important role in speech and music perception and the analysis of auditory scenes, yet traditional rateplace and temporal models for pitch processing provide only an incomplete ...

Cedolin, Leonardo

455

Spherical harmonic series solution of fields excited by vertical electric dipole in earth-ionosphere cavity  

Science Journals Connector (OSTI)

The spherical harmonic series expression of electromagnetic fields excited by ELF/SLF vertical electric dipole in the spherical earth- ... the sum of two traveling waves in the SLF band. Moreover, the results are...

Yuanxin Wang; Wensheng Fan; Weiyan Pan

2008-01-01T23:59:59.000Z

456

An alternative derivation of the equations of motion of the relativistic (an)harmonic oscillator  

Science Journals Connector (OSTI)

The equations of motion of the relativistic (an)harmonic oscillator are derived based on an alternative Lagrangian formalism of relativistic mechanics using the proper time as the evolution parameter.

Young-Sea Huang

1999-01-01T23:59:59.000Z

457

Generation of octave-spanning multiple harmonics for ultrafast waveform synthesis  

E-Print Network (OSTI)

Up to seven laser harmonics covering more than two octaves in frequency have been generated efficiently in a single PPLT crystal, permitting the synthesis of 1.5 femtosecond pulses in a stable and compact setting.

Hsu, Wei-Chun

458

Non-Abelian current oscillations in harmonic string loops: existence of throbbing vortons  

E-Print Network (OSTI)

It is shown that a string carrying a field of harmonic type can have circular vorton states of a new "throbbing" kind, for which the worldsheet geometry is stationary but the internal structure undergoes periodic oscillation.

Brandon Carter

2012-02-17T23:59:59.000Z

459

Non-Abelian current oscillations in harmonic string loops: existence of throbbing vortons  

E-Print Network (OSTI)

It is shown that a string carrying a field of harmonic type can have circular vorton states of a new "throbbing" kind, for which the worldsheet geometry is stationary but the internal structure undergoes periodic oscillation.

Carter, Brandon

2012-01-01T23:59:59.000Z

460

Generation and coherent control of even-order harmonics driven by intense frequency-comb and cavity-mode fields inside a fsEC  

E-Print Network (OSTI)

Generation and coherent control of even-order harmonics driven by intense frequency-comb and cavity) doi:10.1088/0953-4075/46/14/145403 Generation and coherent control of even-order harmonics driven, resulting in the generation of even-order harmonics. The high-order harmonic generation (HHG) from a two

Chu, Shih-I

Note: This page contains sample records for the topic "harmonics energy range" 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

Metalcasting | Department of Energy  

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

closely with AMO to develop a range of resources to improve energy efficiency and reduce carbon emissions. Analytical Studies & Other Publications Manufacturing Energy and Carbon...

462

On the Harmonic approximation for large Josephson junction coupling charge qubits  

E-Print Network (OSTI)

We revisit the harmonic approximation (HA) for a large Josephson junction interacting with some charge qubits through the variational approach for the quantum dynamics of the junction-qubit coupling system. By making use of numerical calculation and analytical treatment, the conditions under which HA works well can be precisely presented to control the parameters implementing the two-qubit quantum logical gate through the couplings to the large junction with harmonic oscillator (HO) Hamiltonian.

T. Shi; B. Chen; Z. Song; C. P. Sun

2004-09-23T23:59:59.000Z

463

Second harmonic generation from direct band gap quantum dots pumped by femtosecond laser pulses  

SciTech Connect

We report on nonlinear optical experiments performed on Cu{sub 2}S quantum dots (QDs) pumped by femtosecond laser pulses. We conduct a theoretical simulation and experiments to determine their second harmonic generation characteristics. Furthermore, we demonstrate that the QDs have a second harmonic generation conversion efficiency of up to 76%. Our studies suggest that these Cu{sub 2}S QDs can be used for solar cells, bioimaging, biosensing, and electric detection.

Liu, Liwei, E-mail: liulw@cust.edu.cn; Wang, Yue; Hu, Siyi; Ren, Yu; Huang, Chen [School of Science, Changchun University of Science and Technology, Changchun, Jilin 130022, People's Republic of China and International Joint Research Center for Nanophotonics and Biophotonics, Changchun University of Science and Technology, Changchun, Jilin 130022 (China)

2014-02-21T23:59:59.000Z

464

Tidal flow over threedimensional topography generates outofforcingplane harmonics  

E-Print Network (OSTI)

the barotropic tide [Munk and Wunsch, 1998; Egbert and Ray, 2000]. The transfer of this barotropic energy from energy conversion from the barotropic to the baroclinic tide. The generation of internal waves by tidal circulation is maintained by roughly 2 TW of mixing energy, about half of which is extracted from

Texas at Austin. University of

465

Acoustic energy radiated by nonlinear spherical oscillations of strongly driven bubbles  

Science Journals Connector (OSTI)

...considerations of surface stability. With the quasi-acoustic...acoustic energies of bubbles driven at 23.5kHz...universal boundary of bubble stability at the upper threshold...harmonic modes on bubble levitation, stability and SLJ. Acoust...

2010-01-01T23:59:59.000Z

466

A Global and Long-Range Picture of Energy Developments  

Science Journals Connector (OSTI)

...Africa) oil production rates and...as-sumed production ceiling...barrels of ofl per day). Non-region VI OPEC countries...of oil per day. This ceiling...about 30 per-cent above its 1977 production rate. Re-gion...is not the OPEC (Table 5...

Wolf Hfele

1980-07-04T23:59:59.000Z

467

A Global and Long-Range Picture of Energy Developments  

Science Journals Connector (OSTI)

...IS). But it is considered Imports unlikely that a fusion capacity...1000 GW-electric could be in-Exports stalled before the year 2030...will be after the year 2030. Imports 0 IBM Exports lim 1 457 Fig. 6. Oil trading...

Wolf Hfele

1980-07-04T23:59:59.000Z

468

Cumulative Second Harmonic Generation in Lamb Waves for the Detection of Material Nonlinearities  

SciTech Connect

An understanding of the generation of higher harmonics in Lamb waves is of critical importance for applications such as remaining life prediction of plate-like structural components. The objective of this work is to use nonlinear Lamb waves to experimentally investigate inherent material nonlinearities in aluminum plates. These nonlinearities, e.g. lattice anharmonicities, precipitates or vacancies, cause higher harmonics to form in propagating Lamb waves. The amplitudes of the higher harmonics increase with increasing propagation distance due to the accumulation of nonlinearity while the Lamb wave travels along its path. Special focus is laid on the second harmonic, and a relative nonlinearity parameter is defined as a function of the fundamental and second harmonic amplitude. The experimental setup uses an ultrasonic transducer and a wedge for the Lamb wave generation, and laser interferometry for detection. The experimentally measured Lamb wave signals are processed with a short-time Fourier transformation (STFT), which yields the amplitudes at different frequencies as functions of time, allowing the observation of the nonlinear behavior of the material. The increase of the relative nonlinearity parameter with propagation distance as an indicator of cumulative second harmonic generation is shown in the results for the alloy aluminum 1100-H14.

Bermes, Christian [School of Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta, GA 30332-0355 (United States); Jacobs, Laurence J. [School of Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta, GA 30332-0355 (United States); G.W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332-0405 (United States); Kim, Jin-Yeon; Qu, Jianmin [G.W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332-0405 (United States)

2007-03-21T23:59:59.000Z

469

The Energy Strategy Cycle  

E-Print Network (OSTI)

Effective long-range energy planning begins with a reflective analysis that encompasses the complexity of today's energy reality and sets a course for activity to achieve long-range continuing advancement. This strategy approach involves...

Korich, R. D.

1983-01-01T23:59:59.000Z

470

Geothermal Reservoir Assessment Case Study, Northern Basin and Range  

Open Energy Info (EERE)

Reservoir Assessment Case Study, Northern Basin and Range Reservoir Assessment Case Study, Northern Basin and Range Province, Northern Dixie Valley, Nevada Jump to: navigation, search OpenEI Reference LibraryAdd to library Report: Geothermal Reservoir Assessment Case Study, Northern Basin and Range Province, Northern Dixie Valley, Nevada Abstract N/A Authors Elaine J. Bell, Lawrence T. Larson and Russell W. Juncal Published U.S. Department of Energy, 1980 Report Number GLO2386 DOI Not Provided Check for DOI availability: http://crossref.org Online Internet link for Geothermal Reservoir Assessment Case Study, Northern Basin and Range Province, Northern Dixie Valley, Nevada Citation Elaine J. Bell,Lawrence T. Larson,Russell W. Juncal. 1980. Geothermal Reservoir Assessment Case Study, Northern Basin and Range Province,

471

Radar range measurements in the atmosphere.  

SciTech Connect

The earth's atmosphere affects the velocity of propagation of microwave signals. This imparts a range error to radar range measurements that assume the typical simplistic model for propagation velocity. This range error is a function of atmospheric constituents, such as water vapor, as well as the geometry of the radar data collection, notably altitude and range. Models are presented for calculating atmospheric effects on radar range measurements, and compared against more elaborate atmospheric models.

Doerry, Armin Walter

2013-02-01T23:59:59.000Z

472

Range Image Segmentation by an Effective Jump-Diffusion Method  

E-Print Network (OSTI)

and its associated reflectance image in the Bayesian framework. The algorithm works on complex real-world parameter setting. The results are satisfactory in comparison with manual segmentations. Index Terms--Energy accessible to many users. These scanners can capture accurate 3D range images of real-world scenes at large

Zhu, Song Chun

473

New Mexico State University Department of Animal & Range Sciences  

E-Print Network (OSTI)

offered include "Solar and wind energy for the landowner ­ options, costs and returns;" By- productNew Mexico State University Department of Animal & Range Sciences Number 272 May 24, 2010 ALLRED-understory relations on one seed juniper (Juniperus monosperma [Engelm.] Sarg.) encroachment sites in New Mexico." Dr

Johnson, Eric E.

474

An optimized co-ordinated approach for harmonic minimization of Doubly Fed Induction Generator connected micro-grid system  

Science Journals Connector (OSTI)

Abstract This paper illustrates the biogeography based optimization (BBO) based selected harmonic elimination technique for \\{DFIGs\\} connected to a micro-grid. The lower order harmonics are individually eliminated in each DFIG outputs but the higher order harmonics are eliminated in such a way that the harmonics generated by one source is eliminated by the other after generating the same order of harmonics in opposite phase. The switching angles are computed off-line and stored in microcontroller memory in the form of look-up tables for on line application. The excitation power for the inverters is obtained from a photovoltaic (PV) panel. Proper simulations are executed for the proposed theory and subsequently supported by investigational verifications. Both the simulation and experiments agree well with the analytical formulation. The total harmonic distortion (THD) in the output is found to be within the stipulated limit.

Krishna Sarker; Debashis Chatterjee; S.K. Goswami

2015-01-01T23:59:59.000Z

475

Bringing a Range of Supported Mitigation Activities in Selected Countries  

Open Energy Info (EERE)

Bringing a Range of Supported Mitigation Activities in Selected Countries Bringing a Range of Supported Mitigation Activities in Selected Countries to the Next Level Jump to: navigation, search Name Bringing a Range of Supported Mitigation Activities in Selected Countries to the Next Level Agency/Company /Organization Energy Research Centre of the Netherlands (ECN), Ecofys Sector Climate Focus Area Renewable Energy, Agriculture, People and Policy Topics Low emission development planning, Policies/deployment programs Website http://www.ecn.nl/docs/library Program Start 2011 Program End 2014 Country Chile, Indonesia, Kenya, Peru, Tunisia South America, South-Eastern Asia, Eastern Africa, South America, Northern Africa References ECN[1] Ecofys[2] Program Overview This project runs from March 2012 to December 2014, and is a collaboration

476

Enhancement of the high-order harmonic generation from the gold plume using the time-resolved plasma spectroscopy  

SciTech Connect

We present systematic time-resolved investigations of plasma conditions for achieving the maximum cutoff and maximum conversion efficiency of high-order harmonic generation from gold plasma within the plateau. We analyzed harmonic generation under different laser-plasma conditions. We also performed simulations to calculate the ionization state of the gold plasma, the free electron density, and singly charged ion density at different prepulse intensities. By optimizing the plasma conditions, we observed a harmonic cutoff at the 53rd order ({lambda}=15.09 nm). We estimate the conversion efficiency of the harmonics within the plateau region to be 2x10{sup -6}.

Ganeev, Rashid A.; Elouga Bom, Luc B.; Ozaki, Tsuneyuki [Institut National de la Recherche Scientifique, Energie, Materiaux et Telecommunications, 1650 Lionel-Boulet, Varennes, Quebec J3X 1S2 (Canada) and Scientific Association Akadempribor, Academy of Sciences of Uzbekistan, Akademgorodok, Tashkent 100125 (Uzbekistan); Institut National de la Recherche Scientifique, Energie, Materiaux et Telecommunications, 1650 Lionel-Boulet, Varennes, Quebec J3X 1S2 (Canada)

2007-10-01T23:59:59.000Z

477

Influence of Harmonic Distortions of Driving Signal on Chirp Parameter Measurement of Mach-Zehnder Modulator - Experimental Verification -  

Science Journals Connector (OSTI)

In this paper, we describe the influence of harmonic distortions of RF driving signal on chirp parameter measurement of a Mach-Zehnder modulator. The influence was experimentally...

Hayashi, Takahiro; Toda, Hiroyuki; Kawanishi, Tetsuya

478

Measurement of higher harmonics in periodic vibrations using phase-modulated TV holography with digital image processing  

Science Journals Connector (OSTI)

We separately measure the higher harmonics vibration patterns of a periodic vibrating object by using time-average TV holography and phase modulation. During measurements the frequency...

Lkberg, Ole J; Pedersen, Hans M; Val, Hilde; Wang, Gunnar

1994-01-01T23:59:59.000Z

479

Second harmonic generation by propagation of a p-polarized obliquely incident laser beam in underdense plasma  

SciTech Connect

An analytical study of second harmonic generation due to interaction an intense, p-polarized laser beam propagating obliquely in homogeneous underdense plasma, in the mildly relativistic regime, has been presented. The efficiency of the second harmonic radiation as well as its detuning length has been obtained and their variation with the angle of incidence is analyzed. It is shown that, for a given plasma electron density, the second harmonic efficiency increases with the angle of incidence while the detuning length decreases. The second harmonic amplitude vanishes at normal incidence of the laser beam.

Jha, Pallavi; Agrawal, Ekta [Department of Physics, University of Lucknow, Lucknow-226007 (India)

2014-05-15T23:59:59.000Z

480

Geothermal Resource Analysis And Structure Of Basin And Range Systems,  

Open Energy Info (EERE)

Analysis And Structure Of Basin And Range Systems, Analysis And Structure Of Basin And Range Systems, Especially Dixie Valley Geothermal Field, Nevada Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Report: Geothermal Resource Analysis And Structure Of Basin And Range Systems, Especially Dixie Valley Geothermal Field, Nevada Details Activities (12) Areas (5) Regions (0) Abstract: Publish new thermal and drill data from the Dizie Valley Geothermal Field that affect evaluation of Basin and Range Geothermal Resources in a very major and positive way. Completed new geophysical surveys of Dizie Valley including gravity and aeromagnetics and integrated the geophysical, seismic, geological and drilling data at Dizie Valley into local and regional geologic models. Developed natural state mass and energy

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


481

Geothermal Resource Analysis and Structure of Basin and Range Systems,  

Open Energy Info (EERE)

Analysis and Structure of Basin and Range Systems, Analysis and Structure of Basin and Range Systems, Especially Dixie Valley Geothermal Field, Nevada Jump to: navigation, search OpenEI Reference LibraryAdd to library Report: Geothermal Resource Analysis and Structure of Basin and Range Systems, Especially Dixie Valley Geothermal Field, Nevada Authors David D. Blackwell, Kenneth W. Wisian, Maria C. Richards, Mark Leidig, Richard Smith and Jason McKenna Published U.S. Department of Energy, 2003 DOI Not Provided Check for DOI availability: http://crossref.org Online Internet link for Geothermal Resource Analysis and Structure of Basin and Range Systems, Especially Dixie Valley Geothermal Field, Nevada Citation David D. Blackwell,Kenneth W. Wisian,Maria C. Richards,Mark Leidig,Richard Smith,Jason McKenna. 2003. Geothermal Resource Analysis and Structure of

482

Nuclear Physics Long Range Plan | Jefferson Lab  

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

Nuclear Physics Long Range Plan June 26, 2014 For a couple of years now, we have been waiting to get started on the next nuclear physics long range plan (LRP). What does that mean?...

483

Medium- and Long-Range Forecasting  

Science Journals Connector (OSTI)

In contrast to short and extended range forecasts, predictions for periods beyond 5 days use time-averaged, midtropospheric height fields as their primary guidance. As time ranges are increased to 3O- and 90-day outlooks, guidance increasingly ...

A. James Wagner

1989-09-01T23:59:59.000Z

484

Categorical Exclusion Determinations: Office of Energy Efficiency and  

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

5, 2010 5, 2010 CX-003546: Categorical Exclusion Determination Harmonization of Zigbee, Bacnet and Dali in Wireless Dimming Lighting Control CX(s) Applied: B5.1 Date: 08/25/2010 Location(s): Allentown, Pennsylvania Office(s): Energy Efficiency and Renewable Energy, National Energy Technology Laboratory August 25, 2010 CX-003545: Categorical Exclusion Determination Harmonization of Zigbee, Bacnet and Dali in Wireless Dimming Lighting Control CX(s) Applied: B5.1 Date: 08/25/2010 Location(s): Rochester, New York Office(s): Energy Efficiency and Renewable Energy, National Energy Technology Laboratory August 24, 2010 CX-003874: Categorical Exclusion Determination Sustainable Energy for Vermont Schools CX(s) Applied: A9, B5.1 Date: 08/24/2010 Location(s): Vermont Office(s): Energy Efficiency and Renewable Energy, Golden Field Office

485

Wave function for harmonically confined electrons in time-dependent electric and magnetostatic fields  

SciTech Connect

We derive via the interaction representation the many-body wave function for harmonically confined electrons in the presence of a magnetostatic field and perturbed by a spatially homogeneous time-dependent electric fieldthe Generalized Kohn Theorem (GKT) wave function. In the absence of the harmonic confinement the uniform electron gas the GKT wave function reduces to the Kohn Theorem wave function. Without the magnetostatic field, the GKT wave function is the Harmonic Potential Theorem wave function. We further prove the validity of the connection between the GKT wave function derived and the system in an accelerated frame of reference. Finally, we provide examples of the application of the GKT wave function.

Zhu, Hong-Ming; Chen, Jin-Wang; Pan, Xiao-Yin, E-mail: panxiaoyin@nbu.edu.cn [Department of Physics, Ningbo University, Ningbo 315211 (China)] [Department of Physics, Ningbo University, Ningbo 315211 (China); Sahni, Viraht [Department of Physics, Brooklyn College and The Graduate School of the City University of New York, New York, New York 10016 (United States)] [Department of Physics, Brooklyn College and The Graduate School of the City University of New York, New York, New York 10016 (United States)

2014-01-14T23:59:59.000Z

486

Mode conversion and absorption of fast waves at high ion cyclotron harmonics in inhomogeneous magnetic fields  

SciTech Connect

The propagation and absorption of high harmonic fast waves is of interest for non-inductive current drives in fusion experiments. The fast wave can be coupled with the ion Bernstein wave that propagates in the high magnetic field side of an ion cyclotron harmonic resonance layer. This coupling and the absorption are analyzed using the hot plasma dispersion relation and a wave equation that was converted from an approximate dispersion relation for the case where ?{sub i}=k{sub ?}{sup 2}?{sub i}{sup 2}/2?1 (where k{sub ?} is the perpendicular wave number and ?{sub i} is the ion Larmor radius). It is found that both reflection and conversion may occur near the harmonic resonance layer but that they decrease rapidly, giving rise to a sharp increase in the absorption as the parallel wave number increases.

Cho, Suwon, E-mail: swcho@kgu.ac.kr [Department of Physics, Kyonggi University, Suwon, Kyonggi-Do 443-760 (Korea, Republic of)] [Department of Physics, Kyonggi University, Suwon, Kyonggi-Do 443-760 (Korea, Republic of); Kwak, Jong-Gu [National Fusion Research Institute, Daejeon 305-806 (Korea, Republic of)] [National Fusion Research Institute, Daejeon 305-806 (Korea, Republic of)

2014-04-15T23:59:59.000Z

487

Controlling the Interference of Multiple Molecular Orbitals in High-Harmonic Generation  

SciTech Connect

We demonstrate a new method to investigate the origin of spectral structures in high-harmonic generation. We report detailed measurements of high-harmonic spectra in aligned nitrogen and carbon dioxide molecules. Varying the wavelength and intensity of the generating laser field, we show that the minimum in aligned N{sub 2} molecules is nearly unaffected, whereas the minimum in aligned CO{sub 2} molecules shifts over more than 15 eV. Our quantitative analysis shows that both the interference of multiple orbitals and their structural characteristics affect the position of the minimum. Our method provides a simple approach to the investigation of the high-harmonic generation process in more complex molecules.

Woerner, H. J.; Bertrand, J. B.; Hockett, P.; Corkum, P. B.; Villeneuve, D. M. [Joint Laboratory for Attosecond Science, National Research Council of Canada and University of Ottawa, 100 Sussex Drive, Ottawa, Ontario, K1A 0R6 (Canada)

2010-06-11T23:59:59.000Z

488

Carrier-wave Rabi flopping signatures in high-order harmonic generation for alkali atoms  

E-Print Network (OSTI)

We present the first theoretical investigation of carrier-wave Rabi flopping in real atoms by employing numerical simulations of high-order harmonic generation (HHG) in alkali species. Given the short HHG cutoff, related to the low saturation intensity, we concentrate on the features of the third harmonic of sodium (Na) and potassium (K) atoms. For pulse areas of 2$\\pi$ and Na atoms, a characteristic unique peak appears, which, after analyzing the ground state population, we correlate with the conventional Rabi flopping. On the other hand, for larger pulse areas, carrier-wave Rabi flopping occurs, and is associated with a more complex structure in the third harmonic. These new characteristics observed in K atoms indicate the breakdown of the area theorem, as was already demonstrated under similar circumstances in narrow band gap semiconductors.

Ciappina, M F; Landsman, A S; Zimmermann, T; Lewenstein, M; Roso, L; Krausz, F

2015-01-01T23:59:59.000Z

489

High-order harmonic generation and multi-photon ionization of ethylene in laser fields  

E-Print Network (OSTI)

Applying time-dependent local density approximation (TDLDA), we study the high-order harmonic generation (HHG) of ethylene subjected to the one-color ($\\omega=2.72$ eV) and the two-color ($\\omega_1=2.72$ eV and $\\omega_2=5.44$ eV) ultrashort intense laser pulses. The HHG spectrum of ethylene in the one-color laser field shows the obvious plateaus and odd order harmonics are produced while the two-color laser field can result in the breaking of the symmetry and generation of the even order harmonic. The ionization probabilities are obtained showing the increase of the ionization probability of higher charge state by the two-color laser field. The temporal structures of HHG spectrum of ethylene is explored by means of the time-frequency analysis showing new insights of the HHG mechanisms in the one-color and the two-color laser fields.

Wang, Z P; Reinhard, P -G; Suraud, E; Zhang, F S

2009-01-01T23:59:59.000Z

490

Dynamic Analysis of Wind Turbine Planetary Gears Using an Extended Harmonic Balance Approach: Preprint  

SciTech Connect

The dynamics of wind turbine planetary gears with gravity effects are investigated using an extended harmonic balance method that extends established harmonic balance formulations to include simultaneous internal and external excitations. The extended harmonic balance method with arc-length continuation and Floquet theory is applied to a lumped-parameter planetary gear model including gravity, fluctuating mesh stiffness, bearing clearance, and nonlinear tooth contact to obtain the planetary gear dynamic response. The calculated responses compare well with time domain integrated mathematical models and experimental results. Gravity is a fundamental vibration source in wind turbine planetary gears and plays an important role in system dynamics, causing hardening effects induced by tooth wedging and bearing-raceway contacts. Bearing clearance significantly reduces the lowest resonant frequencies of translational modes. Gravity and bearing clearance together lowers the speed at which tooth wedging occurs lower than the resonant frequency.

Guo, Y.; Keller, J.; Parker, R. G.

2012-06-01T23:59:59.000Z

491

Nonlinear absorption and harmonic generation of laser in a gas with anharmonic clusters  

SciTech Connect

The nonlinear absorption and harmonic generation of intense short pulse laser in a gas embedded with anharmonic clusters are investigated theoretically. When the laser induced excursion of cluster electrons becomes comparable to cluster radius, the restoration force on electrons no longer remains linearly proportional to the excursion. As a consequence, the plasmon resonance is broadened, leading to broadband laser absorption. It also leads to second and third harmonic generations, at much higher level than the one due to ponderomotive nonlinearity. The harmonic yield is resonantly enhanced at the plasmon resonance {omega}={omega}{sub pe}/{radical}(3), where {omega} is the frequency of the laser and {omega}{sub pe} is the plasma frequency of cluster electrons.

Kumar, Manoj; Tripathi, V. K. [Department of Physics, Indian Institute of Technology Delhi, New Delhi 110016 (India)

2013-02-15T23:59:59.000Z

492

The 3-Dimensional q-Deformed Harmonic Oscillator and Magic Numbers of Alkali Metal Clusters  

E-Print Network (OSTI)

Magic numbers predicted by a 3-dimensional q-deformed harmonic oscillator with Uq(3) > SOq(3) symmetry are compared to experimental data for alkali metal clusters, as well as to theoretical predictions of jellium models, Woods--Saxon and wine bottle potentials, and to the classification scheme using the 3n+l pseudo quantum number. The 3-dimensional q-deformed harmonic oscillator correctly predicts all experimentally observed magic numbers up to 1500 (which is the expected limit of validity for theories based on the filling of electronic shells), thus indicating that Uq(3), which is a nonlinear extension of the U(3) symmetry of the spherical (3-dimensional isotropic) harmonic oscillator, is a good candidate for being the symmetry of systems of alkali metal clusters.

Bonatsos, Dennis; Raychev, P P; Roussev, R P; Terziev, P A; Bonatsos, Dennis

1999-01-01T23:59:59.000Z

493

Second harmonic generation in photonic crystal cavities in (111)-oriented GaAs  

SciTech Connect

We demonstrate second harmonic generation at telecommunications wavelengths in photonic crystal cavities in (111)-oriented GaAs. We fabricate 30 photonic crystal structures in both (111)- and (100)-oriented GaAs and observe an increase in generated second harmonic power in the (111) orientation, with the mean power increased by a factor of 3, although there is a large scatter in the measured values. We discuss possible reasons for this increase, in particular, the reduced two photon absorption for transverse electric modes in (111) orientation, as well as a potential increase due to improved mode overlap.

Buckley, Sonia, E-mail: bucklesm@stanford.edu; Radulaski, Marina; Vu?kovi?, Jelena [E. L. Ginzton Laboratory, Stanford University, Stanford, California 94305 (United States)] [E. L. Ginzton Laboratory, Stanford University, Stanford, California 94305 (United States); Biermann, Klaus [Paul-Drude-Institut fr Festkrperelektronik, Hausvogteiplatz 5-7, D-10117 Berlin (Germany)] [Paul-Drude-Institut fr Festkrperelektronik, Hausvogteiplatz 5-7, D-10117 Berlin (Germany)

2013-11-18T23:59:59.000Z

494

Life Cycle GHG Emissions from Conventional Natural Gas Power Generation: Systematic Review and Harmonization (Presentation)  

SciTech Connect

This research provides a systematic review and harmonization of the life cycle assessment (LCA) literature of electricity generated from conventionally produced natural gas. We focus on estimates of greenhouse gases (GHGs) emitted in the life cycle of electricity generation from conventionally produced natural gas in combustion turbines (NGCT) and combined-cycle (NGCC) systems. A process we term "harmonization" was employed to align several common system performance parameters and assumptions to better allow for cross-study comparisons, with the goal of clarifying central tendency and reducing variability in estimates of life cycle GHG emissions. This presentation summarizes preliminary results.

Heath, G.; O'Donoughue, P.; Whitaker, M.

2012-12-01T23:59:59.000Z

495

The harmonic oscillator with dissipation within the theory of open quantum systems  

E-Print Network (OSTI)

Time evolution of the expectation values of various dynamical operators of the harmonic oscillator with dissipation is analitically obtained within the framework of the Lindblad theory for open quantum systems. We deduce the density matrix of the damped harmonic oscillator from the solution of the Fokker-Planck equation for the coherent state representation, obtained from the master equation for the density operator. The Fokker-Planck equation for the Wigner distribution function, subject to either the Gaussian type or the $\\delta$-function type of initial conditions, is also solved by using the Wang-Uhlenbeck method. The obtained Wigner functions are two-dimensional Gaussians with different widths.

A. Isar

2005-08-18T23:59:59.000Z

496

New operator approach to the CMB aberration kernels in harmonic space  

E-Print Network (OSTI)

Aberration kernels describe how harmonic-space multipole coefficients of cosmic microwave background (CMB) observables transform under Lorentz boosts of the reference frame. For spin-weighted CMB observables, transforming like the CMB temperature (i.e. Doppler weight $d = 1$), we show that the aberration kernels are the matrix elements of a unitary boost operator in harmonic space. Algebraic properties of the rotation and boost generators then give simple, exact recursion relations that allow us to raise or lower the multipole quantum numbers $\\ell$ and $m$, and the spin weight $s$. Further recursion relations express kernels of other Doppler weights $d \

Liang Dai; Jens Chluba

2014-03-24T23:59:59.000Z

497

Simultaneous Multi-Harmonic Imaging of Nanoparticles in Tissues for Increased Selectivity  

E-Print Network (OSTI)

We investigate the use of Bismuth Ferrite (BFO) nanoparticles for tumor tissue labelling in combination with infrared multi-photon excitation at 1250 nm. We report the efficient and simultaneous generation of second and third harmonic by the nanoparticles. On this basis, we set up a novel imaging protocol based on the co-localization of the two harmonic signals and demonstrate its benefits in terms of increased selectivity against endogenous background sources in tissue samples. Finally, we discuss the potential use of BFO nanoparticles as mapping reference structures for correlative light-electron microscopy.

Rogov, Andrii; Ramos-Gomes, Fernanda; Bode, Julia; Staedler, Davide; Passemard, Solne; Courvoisier, Sbastien; Yamamoto, Yasuaki; Waharte, Franois; Ciepielewski, Daniel; Rideau, Philippe; Gerber-Lemaire, Sandrine; Alves, Frauke; Salamero, Jean; Bonacina, Luigi; Wolf, Jean-Pierre

2014-01-01T23:59:59.000Z

498