Reliant Energy | Open Energy Information
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of InspectorConcentrating Solar PowerstoriesNrelPartnerType Jump to:Co JumpRETScreenJamLLC Jump to:Reliant
Keighin, C.W.; Flores, R.M.; Ochs, A. [Geological Survey, Denver, CO (United States)
1998-12-31T23:59:59.000Z
In southwestern North Dakota, minable lignite beds in the Paleocene Fort Union Formation include the Harmon and Hansen beds in the Bowman-Gascoyne area. Data from more than 700 drill holes penetrating these beds was used to construct stratigraphic cross sections. The Harmon and Hansen beds are the thickest and most laterally persistent lignites found under < 150 ft of overburden. The Harmon coal bed is as much as 34 ft thick, and is often split by claystone interbeds of variable thickness. The Hansen coal bed typically occurs 10--100 ft below the Harmon coal bed; it rarely attains a thickness of 15 ft, and averages 4 ft in thickness.
Office of Energy Efficiency and Renewable Energy (EERE)
[[{"type":"media","view_mode":"media_large","fid":"745576","attributes":{"alt":"Photo of Bill Wicker","class":"media-image caption","style":"width: 161px; height: 201px; float: right;","typeof":...
Brody, James P.
proceedings 2013 `When perhaps the real problem is money itself!' The practical materiality of Bitcoin. Bill
Broader source: Energy.gov [DOE]
All of Maine's electric utilities -- investor-owned utilities (IOUs), consumer-owned utilities (COUs), which include municipal utilities and electric cooperatives -- must offer net energy billing...
STEP Utility Bill Analysis Report
Broader source: Energy.gov [DOE]
STEP Utility Bill Analysis Report, from the Tool Kit Framework: Small Town University Energy Program (STEP).
Operating Reserves: Billing Implementation Update
Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)
D M I N I S T R A T I O N 2 Overview Explain the billing delay in implementing new WECC OR standards Customer outreach New project schedule Review new OR billing...
Biomass plants face wood supply risks Report warns giant new biomass power plants will be hugely's biomass energy sector could be undermined unless businesses move to resolve the supply chain issues-scale biomass plants will leave generators largely reliant on biomass from overseas such as wood chips, elephant
Ellingson, Steven W.
HII Absorption Bill Erickson November 10, 2006 It would make all of the drift curve simulations.8 dB above the data. One reason for this might be HII absorption which is not modeled in simulations. There are a number of ways that one might try to estimate the absorption. One might use optical maps of HII
Final Conservation Billing Credit Policy Supplement Background...
Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)
December 17, 2014 Page 1 Final Conservation Billing Credit Policy Supplement Background and Need: This Conservation Billing Credit Policy Supplement describes how Bonneville Power...
Bennett, Charles L. (Livermore, CA)
2009-10-20T23:59:59.000Z
A high efficiency harmonic engine based on a resonantly reciprocating piston expander that extracts work from heat and pressurizes working fluid in a reciprocating piston compressor. The engine preferably includes harmonic oscillator valves capable of oscillating at a resonant frequency for controlling the flow of working fluid into and out of the expander, and also preferably includes a shunt line connecting an expansion chamber of the expander to a buffer chamber of the expander for minimizing pressure variations in the fluidic circuit of the engine. The engine is especially designed to operate with very high temperature input to the expander and very low temperature input to the compressor, to produce very high thermal conversion efficiency.
Bill and Karen Vogler Oral History
Vogler, Bill; Vogler, Karen; Roane, Jordan
2014-01-01T23:59:59.000Z
Oral history interview of Bill and Karen Vogler conducted by Jordan Roane on November 14, 2014 in Lawrence, Kansas. Bill is the pastor of Grace Evangelical Presbyterian Church in Lawrence, Kansas. He began pastoring the ...
ELECTRONIC BILLING EXEMPTION APPEAL Return this form
Amin, S. Massoud
ELECTRONIC BILLING EXEMPTION APPEAL Return this form In person on campus: 333 Science Teaching or black ink. DIRECTIONS To be considered for an exemption from an electronic billing, which is mandatory to be exempt from electronic billing. If you circumstances are similar to the following examples, you may
Bennett, Charles L.; Sewall, Noel; Boroa, Carl
2014-08-19T23:59:59.000Z
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.
McPherson, Rebecca
2012-07-16T23:59:59.000Z
-reliant mothers with the fewest barriers to persisting in adult education were redirected to higher levels of short-term vocational training that lasted 12 months or less through programs such as the 1998 Workforce Investment Act (WIA) (London, 2006). WIA... and local labor market representatives in a representative local workforce board. Therefore, the choice of occupational skills programs available to participants were identified by state and local workforce boards, whose purpose was to identify labor...
MEASURING ENERGY CONSERVATION WITH UTILITY BILLS
Deckel, Walter
2013-01-01T23:59:59.000Z
A Program of Energy Conservation for the Community CollegeLBL-7836, May 1978, Energy Conservation on Campus", FEA/D-Journal MEASURING ENERGY CONSERVATION WITH UTILITY BILLS
Bill Gibbons | Department of Energy
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustion |Energy UsageAUDITVehiclesTankless orA BRIEFApril 2015CommerceDepartment of EnergyÂ»Bill
Bill Valdez | Department of Energy
Broader source: Energy.gov (indexed) [DOE]
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "ofEarly Career Scientists' ResearchTheMarketing,Energy and NaturalBethelNovember 21, 2014 DOE alleged inofBill
Office of Personnel Management (OPM) Billing System PIA, Office...
Office of Environmental Management (EM)
Office of Personnel Management (OPM) Billing System PIA, Office of Health, Safety and Security Office of Personnel Management (OPM) Billing System PIA, Office of Health, Safety and...
Berkeley Lab's Bill Collins talks about Modeling the Changing...
Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)
Berkeley Lab's Bill Collins talks about Modeling the Changing Earth System: Prospects and Challenges. From the 2014 NERSC User's Group Meeting Berkeley Lab's Bill Collins talks...
Lessons from On-Bill Financing and Repayment Programs | Department...
Broader source: Energy.gov (indexed) [DOE]
Case Studies-Financing Energy Improvements on Utility Bills Aggressive Underwriting and Smart Program Delivery On-Bill Financing for Energy Efficiency Improvements Toolkit...
STEP Utility Bill Analysis Report | Department of Energy
STEP Utility Bill Analysis Report, from the Tool Kit Framework: Small Town University Energy Program (STEP). G5d STEP Utility Bill Analysis Report.pdf More Documents &...
Two Years Later: Bill Picciano of DOE's Savannah River Site ...
Broader source: Energy.gov (indexed) [DOE]
-- Bill put in for the job. Within two months, Bill officially became an Associate EngineerTechnical Support Specialist at SRS with the Nuclear Nonproliferation (NNP)...
Harmonization of Biodiesel Specifications
Alleman, T. L.
2008-02-01T23:59:59.000Z
Worldwide biodiesel production has grown dramatically over the last several years. Biodiesel standards vary across countries and regions, and there is a call for harmonization. For harmonization to become a reality, standards have to be adapted to cover all feedstocks. Additionally, all feedstocks cannot meet all specifications, so harmonization will require standards to either tighten or relax. For harmonization to succeed, the biodiesel market must be expanded with the alignment of test methods and specification limits, not contracted.
Tchamran-Savehi, Abbas
1958-01-01T23:59:59.000Z
for their help and suggestions. Special thanks are extended to Professor R. P. Ward for his tieely advice during the course of the present wor'k. CONTENTS Preface Page PART I. ? GENERAL Introduction Graphical Nethod The Problem History of Harmonic... Analysers Nathematical Aspects of Harmonic Analysers PART II. ? A NEW ELECTRO-Ng CHANICAL HARNONIC ANALYZER Sumsmry Description of the New Harmonic Analyser Introducing the Harmonics Dismnsions of a Complex Wave Electrical Integrator 14 16 20 22...
Nuclear Subsidies in the House Climate bill (H.R. 2454) and Senate Energy bill (S. 1462)
Laughlin, Robert B.
Nuclear Subsidies in the House Climate bill (H.R. 2454) and Senate Energy bill (S. 1462) Subsidy per year. #12;Sense of Congress in favor of nuclear power No Yes The Senate energy bill includes for nuclear power R&D No Yes The Senate bill authorizes $5.17 billion from FY2010-FY2013 for nuclear energy
Bill Nye (Energy All Stars Presentation)
Broader source: Energy.gov [DOE]
Bill Nye the Science Guy delivered this presentation on space and the lessons about climate change that can be gleaned from the other planets in our solar system at the Energy All Stars event on...
W. Bill Booth Bruce A. Measure
W. Bill Booth Chair Idaho Bruce A. Measure Vice-Chair Montana James A. Yost Idaho Tom Karier on the consultations held with entities through the October Council meeting and the key themes from those discussions
W. Bill Booth Bruce A. Measure
W. Bill Booth Chair Idaho Bruce A. Measure Vice-Chair Montana James A. Yost Idaho Tom Karier the ISRP and the CSKT held a teleconference on March 30, 2007. On May 25, 2007 received the revised
Assembly Bill No. 109 CHAPTER 313
not apply to renewable diesel or biodiesel infrastructures, fueling stations, and equipment used solely for renewable diesel or biodiesel fuel. The bill would, additionally, specify projects eligible for funding
Broader source: Energy.gov [DOE]
Quadrennial Energy Review: The health of the people of our nation is a major vulnerability that must be addressed in any energy policy. Pollution produced by generating energy impacts our overall health. To encourage healthful sources of energy we have to make sure that the true costs of energy are paid up front. This means not allowing energy development that produces dangerous pollutants. Coal burning causes asthma and mercury poisoning and contributes to climate change that is not priced into energy generated by coal. Allowing liability exemptions to energy producers hides true costs. Nuclear power producers must be accountable for any radiation sickness that resulting from their operations. Fracking must not be exempted from safe drinking water regulations. Even more significant for oil and gas production, hazardous wastes (including methane) generated by exploration and production must be regulated under the Resource Conservation and Recovery Act (RCRA). (Pertinent to this, please enter into the Quadrennial Energy Review proceedings the attached first three pages of an article about RCRA. The full article can be found at http://npaper-wehaa.com/boulder-weekly/2014/03/13/?article=2174620.) Removing exemptions like these will allow clean forms of energy to predominate to the overall benefit of us all. Let us not be guilty of the moral cowardice of business as usual that will cause tremendous problems for future generations. Thank you, Bill Sackett
ENERGY AND WATER DEVELOPMENT APPROPRIATIONS BILL, FY 2011 Senate Bill 3635, Report 111-228
ENERGY AND WATER DEVELOPMENT APPROPRIATIONS BILL, FY 2011 Senate Bill 3635, Report 111. Fusion Energy Sciences (FES) would be funded at $384.0 million, a decrease of $42.0 million below the FY10 enacted level and $4.0 million above the budget request. FUSION ENERGY SCIENCES The Committee
Color Matching for PlasticsColor Matching for Plastics Bill CheethamBill Cheetham
Watson, Ian
1 Color Matching for PlasticsColor Matching for Plastics Bill CheethamBill Cheetham GeneralIndustrial Systems Information ServicesInformation Services Medical SystemsMedical Systems PlasticsPlastics Power Electric Global Research Applications GE Plastics · FormTool - lab color matching tool · Color
harmonic analysis and geometry
Faculty listing for "harmonic analysis and geometry". vCard of Nicola Garofalo Garofalo, Nicola [bio] [homepage] Adjunct Professor of Mathematics
Electrodynamic spherical harmonic
Andrey Novitsky
2008-03-28T23:59:59.000Z
Electrodynamic spherical harmonic is a second rank tensor in three-dimensional space. It allows to separate the radial and angle variables in vector solutions of Maxwell's equations. Using the orthonormalization for electrodynamic spherical harmonic, a boundary problem on a sphere can be easily solved.
Energy Efficiency Tricks to Stop Your Energy Bill from Haunting...
Office of Environmental Management (EM)
Efficiency Tricks to Stop Your Energy Bill from Haunting You Energy Efficiency Tricks to Stop Your Energy Bill from Haunting You October 31, 2014 - 9:25am Addthis This Halloween,...
High Water Heating Bills on Lockdown at Idaho Jail | Department...
Broader source: Energy.gov (indexed) [DOE]
High Water Heating Bills on Lockdown at Idaho Jail High Water Heating Bills on Lockdown at Idaho Jail August 19, 2010 - 12:05pm Addthis The Blaine County Public Safety Facility...
ARPA-E Announces 2012 Energy Innovation Summit Featuring Bill...
Broader source: Energy.gov (indexed) [DOE]
2012 Energy Innovation Summit Featuring Bill Gates, Fred Smith and Lee Scott ARPA-E Announces 2012 Energy Innovation Summit Featuring Bill Gates, Fred Smith and Lee Scott September...
Apartment Hunting - Part II - Keeping those Energy Bills Down...
Broader source: Energy.gov (indexed) [DOE]
apartment hunting, I discuss things to look for that might help keep your energy bills low. When you think about it, energy bills can, in effect, increase your rent each month....
Arkansan Worker Cuts Bills After Auto Job Layoff | Department...
Broader source: Energy.gov (indexed) [DOE]
Arkansan Worker Cuts Bills After Auto Job Layoff Arkansan Worker Cuts Bills After Auto Job Layoff November 24, 2009 - 3:34pm Addthis Joshua DeLung The wind used to howl around the...
Baltimore Vet Cuts Energy Bills With Solar | Department of Energy
Broader source: Energy.gov (indexed) [DOE]
Baltimore Vet Cuts Energy Bills With Solar Baltimore Vet Cuts Energy Bills With Solar October 28, 2010 - 5:09pm Addthis Baltimore resident Paul Bennett installed 14 solar panels...
On Bill Financing: SDG&E/SoCalGas
Office of Energy Efficiency and Renewable Energy (EERE)
Information about On-Bill Financing used by Southern California Gas Company and the different options the program offers.
BILL HAMILTON AT SCHOOL 1949 1954 compiled by Martin Jacoby
Amrhein, Valentin
1 BILL HAMILTON AT SCHOOL 1949 Â 1954 compiled by Martin Jacoby Bill and I this letter to selected school contemporaries: W. D. Hamilton at Tonbridge School Dear [surname, to avoid 50 years ago. You probably know that Bill Hamilton (Smythe House 19493 Â 19543 ) was one of the most
Differentially Private Billing with Rebates George Danezis1
apply fine-grained tariffs dependent on time-of-use or place of-use to readings to compute a bill. We such billing consists of providers collecting all usage information in order to apply the appropriate tariffs readings with a tariff policy to produce a certified bill that leaks no additional informa- tion about
The Balanced Billing Cycle Vehicle Routing Problem
Groer, Christopher S [ORNL; Golden, Bruce [University of Maryland; Edward, Wasil [American University
2009-01-01T23:59:59.000Z
Utility companies typically send their meter readers out each day of the billing cycle in order to determine each customer s usage for the period. Customer churn requires the utility company to periodically remove some customer locations from its meter-reading routes. On the other hand, the addition of new customers and locations requires the utility company to add newstops to the existing routes. A utility that does not adjust its meter-reading routes over time can find itself with inefficient routes and, subsequently, higher meter-reading costs. Furthermore, the utility can end up with certain billing days that require substantially larger meter-reading resources than others. However, remedying this problem is not as simple as it may initially seem. Certain regulatory and customer service considerations can prevent the utility from shifting a customer s billing day by more than a few days in either direction. Thus, the problem of reducing the meterreading costs and balancing the workload can become quite difficult. We describe this Balanced Billing Cycle Vehicle Routing Problem in more detail and develop an algorithm for providing solutions to a slightly simplified version of the problem. Our algorithm uses a combination of heuristics and integer programming via a three-stage algorithm. We discuss the performance of our procedure on a real-world data set.
Assembly Bill No. 1632 CHAPTER 722
-user response to market price signals, as a means to ensure reliable operation of electricity and natural gas the commission, in its report, to consider electricity and natural gas forecasting and assessment activities, as specified, in reporting on electricity and natural gas markets. This bill would require the commission
AEM/S ... Stepping Stone Bill Solitario
AEM/S ... Stepping Stone To Stealth Bill Solitario Professor Systems Engineering September 04, 2003/SENSOR AEM/S #12;TAILORED MATERIAL SYSTEMS #12;Manufacturing Process Seemann Composite Resin Infusion Molding Laminate Â High Fiber to Resin Volume Ratio = High Strength to Weight CORE MATERIAL DRY FABRIC PEEL PLY
Krannert Energy Club BillBivinsis
Ginzel, Matthew
Krannert Energy Club BillBivinsis anexpertin technology, energyand operations withmore than20 technically and economically. Â·The technology integration provides for simultaneous production of natural gas, ethanol, biodiesel, and electricity virtually anywhere in the world. Â·The economic integration, its design
Utility Building Analysis Billing Period: NOV -2013
Ciocan-Fontanine, Ionut
ELECTRICITY Consumption MUNICIPAL WATER Consumption 8 CCF STEAM Consumption CHILLED WATER Consumption GAS Building Analysis Billing Period: NOV - 2013 032 JACKSON HALL: 150,393 Square Feet ELECTRICITY Consumption,550 Square Feet ELECTRICITY Consumption 114,185 KWHRS MUNICIPAL WATER Consumption 1,423 CCF STEAM Consumption
Assembly Bill No. 1007 CHAPTER 371
) to Chapter 4 of Part 5 of Division 26 of the Health and Safety Code, relating to air pollution. [Approved on emissions of air contaminants for the control of air pollution from vehicular and nonvehicular sources responsibility for the control of vehicular air pollution. This bill would require that, not later than June 30
Assembly Bill No. 844 CHAPTER 645
the policy of the state, among other things, to fully evaluate the economic and environmental costs of petroleum use and to establish a state transportation energy policy that results in the least environmental and economic cost to the state. This bill would require the State Energy Resources Conservation and Development
Senate Bill No. 107 CHAPTER 464
% of the total electricity generated for consumption in California per year by 2006. This bill would revise Program, to increase the amount of renewable electricity generated per year, so that it equals at least 17 and recast that intent language so that the amount of electricity generated per year from eligible renewable
Housing & Residential Life Contracts, Assignments & Billing
Amin, S. Massoud
Housing & Residential Life Contracts, Assignments & Billing Comstock Hall-East 210 Delaware St. SE.housing.umn.edu/contractbook. I hereby agree to comply with all University of Minnesota and Housing & Residential Life policies to promptly notify Housing & Residential Life of any felony or misdemeanor charge or conviction prior
Housing & Residential Life Contracts, Assignments & Billing
Minnesota, University of
Housing & Residential Life Contracts, Assignments & Billing Comstock Hall-East 210 Delaware St. SE & Residential Life. For the fall semester, I will cancel on or before August 7. For the spring semester, I day until Housing & Residential Life is able to fill my assigned space with a student from the waiting
Mark W. Coffey
2008-12-09T23:59:59.000Z
We evaluate binomial series with harmonic number coefficients, providing recursion relations, integral representations, and several examples. The results are of interest to analytic number theory, the analysis of algorithms, and calculations of theoretical physics, as well as other applications.
Summers, Mark A. (Livermore, CA); Eimerl, David (Pleasanton, CA); Boyd, Robert D. (Livermore, CA)
1985-01-01T23:59:59.000Z
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, M.A.; Eimerl, D.; Boyd, R.D.
1982-06-10T23:59:59.000Z
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).
Harmonic functions on Walsh's Brownian motion
Jehring, Kristin Elizabeth
2009-01-01T23:59:59.000Z
4.3 Harmonic Functions . . . . . . . . . . . . . . .Chapter 3 Harmonic Functions . . . . . . . . . . . . . . 3.1Markov Chains 4.3.2 Harmonic Functions for the Embedded
Harmonic resolution as a holographic quantum number
Bousso, Raphael
2009-01-01T23:59:59.000Z
LBNL- 57239 Harmonic resolution as a holographic quantumhep-th/0310223 UCB-PTH-03/26 Harmonic resolution as aquantum number, the harmonic resolution K. The Bekenstein
Alternatives for reducing hot-water bills
Bennington, G.E.; Spewak, P.C.
1981-06-01T23:59:59.000Z
A two stage approach to reducing residential water heating bills is described. In Stage I, simple conservation measures were included to reduce the daily hot water energy consumption and the energy losses from the water tank. Once these savings are achieved, Stage II considers more costly options for further reducing the water heating bill. Four alternatives are considered in Stage II: gas water heaters; solar water heaters (two types); heat pump water heaters; and heat recovery from a heat pump or air conditioner. To account for variations within the MASEC region, information on water heating in Rapid City, Minneapolis, Chicago, Detroit, and Kansas City is presented in detail. Information on geography, major population centers, fuel prices, climate, and state solar incentives is covered. (MCW)
W. Bill Booth Bruce A. Measure
W. Bill Booth Chair Idaho Bruce A. Measure Vice-Chair Montana James A. Yost Idaho Frank L. Cassidy of the Columbia River Hatchery Reform Project and the work of the Hatchery Scientific Review Group (HSRG). To date://hatcheryreform.us/prod/site/alias__default/hsrg_document_library/306/hsrg_document_li brary.aspx). Staff will brief Council members on the basic scientific principles
Second Harmonic Generation From Surfaces
Botti, Silvana
Second Harmonic Generation From Surfaces Nicolas Tancogne-Dejean, ValÃ©rie VÃ©niard Condensed Matter/DSM European Theoretical Spectroscopy Facility #12;2 Outline Nonlinear optic and second harmonic generation;4 Second harmonic generation First nonlinear term Centrosymmetric material : (2) = 0 (3)First nonlinear
Analytic Continuation of Harmonic Sums
S. Albino
2009-03-06T23:59:59.000Z
We present a method for calculating any (nested) harmonic sum to arbitrary accuracy for all complex values of the argument. The method utilizes the relation between harmonic sums and (derivatives of) Hurwitz zeta functions, which allows a harmonic sum to be calculated as an expansion valid for large values of its argument. A program for implementing this method is also provided.
Billing Factors for Operating Reserves September 30, 2014
Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)
are effective on October 1, 2014. This implements the FERC approved standard BAL-002-WECC-2. Operating Reserve - Spinning Reserve: The Billing Factor for the rates specified in...
Energy Efficiency & On-Bill Financing for Samll Business & Residential
Broader source: Energy.gov (indexed) [DOE]
Energy Efficiency & On-Bill Financing For Small Businesses & Residential Presentation for: The Second US-China Energy Efficiency Forum Berkeley, California 05062011 May 5-6,...
Exhibit D, Additional Products and Special Provisions FINAL BILLING...
Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)
PRODUCTS AND SPECIAL PROVISIONS Reviewer's Note: The following provisions on Conservation Billing Credits are intended to be captured in Exhibit D of a participant's...
On-Bill Financing and Repayment Programs | Department of Energy
Broader source: Energy.gov (indexed) [DOE]
to pay for investments in clean energy upgrades through their utility. While electric utilities and natural gas companies typically run on-bill programs, there is an opportunity...
On-Bill Financing for Energy Efficiency Improvements: A Review...
Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site
Improvements: A Review of Current Program Challenges, Opportunities, and Best Practices On-Bill Financing for Energy Efficiency Improvements: A Review of Current Program...
2005 Double white lines on bills of Razorbill 103 DOUBLE WHITE LINES ON THE BILL OF THE
Jones, Ian L.
2005 Double white lines on bills of Razorbill 103 DOUBLE WHITE LINES ON THE BILL OF THE RAZORBILL.L., MUZAFFAR S.B. & JONES I.L. Lavers J.L., Muzaffar S.B. & Jones I.L. 2006. Double white lines on the bill Seabirds 7(3): 103-108. One of the diagnostic features of the Razorbill Alca torda is the distinct white
Billings, Montana: Energy Resources | Open Energy Information
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 NoPublic Utilities Address: 160Benin: Energy ResourcesJersey: EnergyBerthoud,BiodieselRapids isBill
Billings, Montana: Energy Resources | Open Energy Information
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 NoPublic Utilities Address: 160Benin: Energy ResourcesJersey: EnergyBerthoud,BiodieselRapids isBillMT) Jump to:
Bill Allcock | Argonne Leadership Computing Facility
Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc DocumentationP-Series to someone6 M. Babzien, I.ProgramBig Sol Big Sol SuperAcid. | EMSLBill
Sandia National Laboratories: Shaheen-Portman Bill
Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1 -theErikGroundbreaking Work onClimateSemiconductorShaheen-Portman Bill Senator
Comparison Groups on Bills: Automated, Personalized Energy Information
individualized energy information for a mass audience-the entire residential customer base of an electric or gas or gas utility. Keywords: Innovative billing, energy feedback, energy efficiency Running head: ComparisonComparison Groups on Bills: Automated, Personalized Energy Information Maithili Iyer Lawrence
UNO Student Health Services Patient's Bill of Rights and Responsibilities
Kulp, Mark
health care program. UNO Student Health Services Human Performance Center Rm. 109 (504) 280-6387 wwwUNO Student Health Services Patient's Bill of Rights and Responsibilities Patient's Bill of Rights to the Health Service regarding its operations and the right to change caregivers for any reason. #12;Patient
S. C. Tiwari
2007-06-09T23:59:59.000Z
A generalized harmonic map equation is presented based on the proposed action functional in the Weyl space (PLA, 135, 315, 1989).
Upton bill offers clean-up incentives
Black, B. [Weinberg & Green, Baltimore, MD (United States)
1994-07-01T23:59:59.000Z
Like castor oil, the Superfund law can be difficult medicine to swallow, and no one wants to volunteer for a dose. Indeed, the law`s harsh and unbending liability scheme sometimes hinders the cleanup of contaminated property. Confronted with the choice of redeveloping an old {open_quotes}brownfield{close_quotes} urban industrial site or building at a pristine new {open_quotes}greenfield{close_quotes} location, most companies opt for the latter. The brownfield problem is especially troubling because the law often prevents voluntary cleanups at relatively low priority sites that usually don`t get caught up in the Superfund program. This paper describes the Upton Bill which would require the US EPA to establish cleanup standards for hazrdous substances, allow for public comment on a proposed response plan, and require a voluntary party to submit detailed annual reports and maintain records.
Damped quantum harmonic oscillator
A. Isar; A. Sandulescu
2006-02-17T23:59:59.000Z
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.
Bill Sergeant Â… An icon of Oak Ridge Security
Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth (AOD)ProductssondeadjustsondeadjustAboutScienceCareers Apply for aCould Work asAdministration BillBillBill
Harmonic Wavelet Transform and Image Approximation
Zhang, Zhihua; Saito, Naoki
2010-01-01T23:59:59.000Z
DOI 10.1007/s10851-010-0202-x Harmonic Wavelet Transform andwe approximate f by a harmonic function u such that thebanks. We call this the Harmonic Wavelet Transform (HWT).
Product-level bill of material development process : managing complexity
Lester, Ryan John
2009-01-01T23:59:59.000Z
Cisco's current process for developing and maintaining product-level bills of materials (BOMs) has resulted in inconsistencies in BOM structure leading to product launch delays, increased product support costs, and lower ...
On The Harmonic Oscillator Group
Raquel M. Lopez; Sergei K. Suslov; Jose M. Vega-Guzman
2011-12-04T23:59:59.000Z
We discuss the maximum kinematical invariance group of the quantum harmonic oscillator from a view point of the Ermakov-type system. A six parameter family of the square integrable oscillator wave functions, which seems cannot be obtained by the standard separation of variables, is presented as an example. The invariance group of generalized driven harmonic oscillator is shown to be isomorphic to the corresponding Schroedinger group of the free particle.
Echo-Enabled Harmonic Generation
Stupakov, Gennady; /SLAC
2012-06-28T23:59:59.000Z
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.
15 Ways to Save on Your Water Heating Bill | Department of Energy
15 Ways to Save on Your Water Heating Bill 15 Ways to Save on Your Water Heating Bill October 26, 2009 - 3:49pm Addthis Allison Casey Senior Communicator, NREL Sometimes it...
Billings County, North Dakota: Energy Resources | Open Energy Information
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 NoPublic Utilities Address: 160Benin: Energy ResourcesJersey: EnergyBerthoud,BiodieselRapids isBill RobinsonBillings
Engaging Small Business: Energy Efficiency and On-Bill Financing for Small Businesses Webinar
Broader source: Energy.gov [DOE]
Engaging Small Business: Energy Efficiency and On-Bill Financing for Small Businesses Webinar, from May 2011.
Harmonic distortion correction in pipelined analog to digital converters
Panigada, Andrea
2009-01-01T23:59:59.000Z
Background Correction of Harmonic Distortion in PipelinedBackground Correction of Harmonic Distortion in PipelinedADC with 69dB SNDR Enabled by Digital Harmonic Distortion
UV Second-Harmonic Studies of Concentrated Aqueous Electrolyte Interfaces
Otten, Dale Edward
2010-01-01T23:59:59.000Z
Probed by UV Second Harmonic Generation, in Department ofby UV Second Harmonic Generation Spectroscopy," 114, 13746with Femtosecond Second Harmonic Generation Spectroscopy,"
The value of a broad mind: some natural history meanderings of Bill Hamilton *
Amrhein, Valentin
The value of a broad mind: some natural history meanderings of Bill Hamilton * DAVID HUGHES) that to write a paper with Bill Hamilton admitted one to a small circle, the honour of inclusion in which history meanderings of Bill Hamilton. Such curiosity may be justified, as my own work (on peculiar
Bill Shafarman 1 May 15, 2013 Thin Film Photovoltaics Research at the
Firestone, Jeremy
Bill Shafarman 1 May 15, 2013 Thin Film Photovoltaics Research at the Institute of Energy of Photovoltaics 2. IEC: History and Capabilities 3. Current Research at IEC #12;Bill Shafarman 2 May 15, 2013 Concentrators #12;Bill Shafarman 5 May 15, 2013 Thin Film Photovoltaics Potential for low cost PV using " a
apply fineÂgrained tariffs dependent on timeÂofÂuse or place ofÂuse to readings to compute a bill. We such billing consists of providers collecting all usage information in order to apply the appropriate tariffs readings with a tariff policy to produce a certified bill that leaks no additional informaÂ tion about
ILU 2.0beta1 Reference Manual Bill Janssen
Janssen, Bill
ILU 2.0beta1 Reference Manual Bill Janssen parc.xerox.com> Mike Spreitzer parc@xerox.com> Dan Larner parc@xerox.com> Chris Jacobi parc@xerox.com> (with contributions from Doug-Language Unification (ILU) system. Lots of people contributed significant amounts of code to the ILU system, including
APD IV, 22-25 April 2013, NIST Bill David,
Magee, Joseph W.
APD IV, 22-25 April 2013, NIST Bill David, ISIS Facility, Rutherford Appleton Laboratory, UK, 22-25 April 2013, NIST , but... RAL: Diamond & ISIS ISIS TSII Oxford Chemistry Oxford #12;APD IV, 22-ray diffractometer CMS @ CERN CMS @ CERN (II) WISH detectors PILATUS ISIS electronics PILATUS electronics #12;APD IV
Case Studies—Financing Energy Improvements on Utility Bills
Broader source: Energy.gov [DOE]
Hosted by Technical Assistance Program (TAP), the State and Local Energy Efficiency Action Network (SEE Action), and Lawrence Berkeley National Laboratory's Electricity Market and Policy Group, this webinar was the second of a two-part webinar series focused on the new report, Financing Energy Improvements on Utility Bills: Market Updates and Key Program Design Considerations for Policymakers and Administrators.
The Cultural Power of Law? Conjunctive Readings Bill Maurer
Brody, James P.
The Cultural Power of Law? Conjunctive Readings Bill Maurer Sally Merry's (1999) Colonizing Hawai'i: The Cultural Power of Law provides a compelling account of the cultural transformation of the Kingdom of Hawaii: Adulterers had the ``choice'' to work off their sentences by building roads for the chiefs. And people deemed
Harmonic algebraic curves and noncrossing partitions
Martin, Jeremy L.; Savitt, David; Singer, Ted
2007-02-01T23:59:59.000Z
Motivated by Gauss’s first proof of the fundamental Theorem of Algebra, we study the topology of harmonic algebraic curves. By the maximum principle, a harmonic curve has no bounded components; its topology is determined ...
Reduced Harmonic Representation of Partitions
Michalis Psimopoulos
2011-03-08T23:59:59.000Z
In the present article the reduced integral representation of partitions in terms of harmonic products has been derived first by using hypergeometry and the new concept of fractional sum and secondly by studying the Fourier series of the kernel function appearing in the integral representation. Using the method of induction, a generalization of the theory has also been obtained.
The Quantum Harmonic Oscillator C. David Sherrill
Sherrill, David
The Quantum Harmonic Oscillator C. David Sherrill School of Chemistry and Biochemistry Georgia Institute of Technology February 2002 1 Introduction The harmonic oscillator is extremely useful by coupled harmonic oscillators. The atoms are viewed as point masses which are connected by bonds which act
Harmonic generation with temporally focused ultrashort pulses
Silberberg, Yaron
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
Leahy, Richard M.
Harmonic MappingsConstrained Harmonic Mappings Anand A Joshi1, David W Shattuck2, Paul M Thompson2 and Richard M Leahy1 Subcortical Structure AIR Harmonic HAMMER Harmonic +Intensity Left Thalamus 0.79 0.68 0. Extrapolation of the surface map to the entire cortical volume by a harmonic map. 3. Refinement of the harmonic
Hyperspherical harmonic formalism for tetraquarks
J. Vijande; N. Barnea; A. Valcarce
2006-10-11T23:59:59.000Z
We present a generalization of the hyperspherical harmonic formalism to study systems made of quarks and antiquarks of the same flavor. This generalization is based on the symmetrization of the $N-$body wave function with respect to the symmetric group using the Barnea and Novoselsky algorithm. Our analysis shows that four-quark systems with non-exotic $2^{++}$ quantum numbers may be bound independently of the quark mass. $0^{+-}$ and $1^{+-}$ states become attractive only for larger quarks masses.
Harmonic Chain with Weak Dissipation
A. A. Lykov; V. A. Malyshev
2013-02-20T23:59:59.000Z
We consider finite harmonic chain (consisting of N classical particles) plus dissipative force acting on one particle (called dissipating particle) only. We want to prove that "in the generic case" the energy (per particle) for the whole system tends to zero in the large time limit and then in the large N limit. "In the generic case" means: for almost all initial conditions and for almost any choice of the dissipating particle, in the thermodynamic limit.
LCA Harmonization | Open Energy Information
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of InspectorConcentrating Solar Powerstories on climateJuno Beach, Florida:KenyonKosciuskoLCA Harmonization Jump
Policy Alternatives for Modifying the 1985 Farm Bill.
Knutson, Ronald D.; Smith, Eward G.; Richardson, James W.; Penson, John B. Jr; Hughes, Dean W.; Paggi, Mechel S.; Yonkers, Robert D.; Chen, Dean T.
1987-01-01T23:59:59.000Z
Finance Institute at Texas Tech University. The authors wish to express their thanks to Vicki McClain for her expert typing and preparation of this bulletin. Table of Contents Page Chapter 1 Need for Study of 1985 Farm Bill Alternatives.... refers to bushels, cwt. refers to hundredweights, lbs. refers to pounds, mil. 2refers to millions, bile refers to billions, and % refers to percentage. All assets are valued at 1986 market values for cropland, pastureland, and machinery. All machinery...
Killing vector fields and harmonic superfield theories
Groeger, Josua, E-mail: groegerj@mathematik.hu-berlin.de [Humboldt-Universität zu Berlin, Institut für Mathematik, Rudower Chaussee 25, 12489 Berlin (Germany)
2014-09-15T23:59:59.000Z
The harmonic action functional allows a natural generalisation to semi-Riemannian supergeometry, also referred to as harmonic, which resembles the supersymmetric sigma models studied in high energy physics. We show that Killing vector fields are infinitesimal supersymmetries of this harmonic action and prove three different Noether theorems in this context. En passant, we provide a homogeneous treatment of five characterisations of Killing vector fields on semi-Riemannian supermanifolds, thus filling a gap in the literature.
Extra Harmonic Vowel in Chicahuaxtla Trique
Matsukawa, Kosuke
2008-01-01T23:59:59.000Z
Extra Harmonic Vowel in Chicahuaxtla Trique1 Kosuke Matsukawa State University of New York at Albany 1. Introduction Chicahuaxtla Trique is spoken in Oaxaca, Mexico and belongs to the Trique language group of the Mixtecan family...). In Chicahuaxtla Trique, an extra harmonic vowel is added after a laryngealized vowel (either a glottalized vowel or an aspirated vowel) in a final syllable. The extra harmonic vowel does not exist in Copala Trique or Itunyoso Trique and is attached mostly...
Felkner, L. J.; Waggoner, R. M.
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...
Bill Gates and Deputy Secretary Poneman Discuss the Energy Technology Landscape
Broader source: Energy.gov [DOE]
Bill Gates and Deputy Secretary of Energy Daniel Poneman discuss the future of energy technology during the twenty-second Plenary Meeting of the Nuclear Suppliers Group.
Reliant Bluebonnet Biomass Facility | Open Energy Information
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia:FAQ < RAPID Jump to: navigation, searchVirginia Blue Ridge And Piedmont Provinces |Rehobeth,Reliable Power
Reliant Conroe Biomass Facility | Open Energy Information
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia:FAQ < RAPID Jump to: navigation, searchVirginia Blue Ridge And Piedmont Provinces |Rehobeth,ReliableConroe
Harmonic potential and hadron spectroscopy
Rafael Tumanyan
2009-05-28T23:59:59.000Z
The quark-gluon sea in the hadrons is considered as periodically correlated. Energy levels of Shrodinger equation with harmonic potential is used for describing of the spectrum of hadron masses. In the considered cases the effective potential operating on each particle of ensemble, under certain conditions becomes square-law on displacement from a equilibrium point. It can become an explanation of popularity of oscillator potential for the description of a spectrum of masses of elementary particles. The analysis shows that levels of periodic potential better agreed to the spectrum of hadron masses, than levels of other potentials used for an explanation of a spectrum of masses.
Constructing Buildings and Harmonic Maps
Katzarkov, Ludmil; Pandit, Pranav; Simpson, Carlos
2015-01-01T23:59:59.000Z
In a continuation of our previous work, we outline a theory which should lead to the construction of a universal pre-building and versal building with a $\\phi$-harmonic map from a Riemann surface, in the case of two-dimensional buildings for the group $SL_3$. This will provide a generalization of the space of leaves of the foliation defined by a quadratic differential in the classical theory for $SL_2$. Our conjectural construction would determine the exponents for $SL_3$ WKB problems, and it can be put into practice on examples.
Harmonic and Potential Games - Optimization Online
2010-05-13T23:59:59.000Z
game into three components, which we refer to as the potential, harmonic and ...... stability of the equilibrium under more general settings and convergence of ...
Harmonic Cheeger-Simons characters with applications
Richard Green; Varghese Mathai
2009-02-13T23:59:59.000Z
We initiate the study of harmonic Cheeger-Simons characters, with applications to smooth versions of the Geometric Langlands program in the abelian case.
Modulation compression for short wavelength harmonic generation
Qiang, J.
2010-01-01T23:59:59.000Z
Wavelength Harmonic Generation Ji Qiang Lawrence Berkeleyform a basis for fourth generation light source. Currently,e?ciency was proposed for generation of short wavelength
Westinghouse Selects Bill Keeley To Lead Strategic Planning and Communication
Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear SecurityTensile Strain Switched FerromagnetismWaste and MaterialsWenjun DengWISP Sign In About |Selects Bill Keeley
Bill Robinson (Train2Build) | Open Energy Information
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 NoPublic Utilities Address: 160Benin: Energy ResourcesJersey: EnergyBerthoud,BiodieselRapids isBill Robinson
Roy Williams as recalled by Bill Wilcox and others
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AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1 -the Mid-Infrared0 Resource ProgramEnergyMaterials:Bill Wilcox and others As is my
Bill Wilcox, part 1 | Y-12 National Security Complex
Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth (AOD)ProductssondeadjustsondeadjustAboutScienceCareers Apply for aCould Work asAdministration1 Bill2 As41
Bill Wilcox, part 2 | Y-12 National Security Complex
Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth (AOD)ProductssondeadjustsondeadjustAboutScienceCareers Apply for aCould Work asAdministration1 Bill2 As412
Bill Wilcox, part 3 | Y-12 National Security Complex
Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth (AOD)ProductssondeadjustsondeadjustAboutScienceCareers Apply for aCould Work asAdministration1 Bill2
Current Generated Harmonics and Their Effect Upon Electrical Industrial Systems
Alexander, H. R.; Rogge, D. S.
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...
HARMONIC MAPPINGS BETWEEN RIEMANNIAN MANIFOLDS Anand Arvind Joshi
Leahy, Richard M.
HARMONIC MAPPINGS BETWEEN RIEMANNIAN MANIFOLDS by Anand Arvind Joshi A Thesis Presented ii Abstract iv 1 Harmonic Mappings 1 1.1 Space of Maps Variation Formula . . . . . . . . . . . . . . . . . . . . . . . . 11 1.4 Harmonic Maps
Acoustoelectric Harmonic Generation in a Photoconductive Piezoelectric Semiconductor
Acoustoelectric Harmonic Generation in a Photoconductive Piezoelectric Semiconductor W. Arthur, R harmonics in the low frequency regime (. Piezoelectric semiconductors can exhibit harmonic generation because of interactions between the acoustic
Radiation reaction and quantum damped harmonic oscillator
F. Kheirandish; M. Amooshahi
2005-07-19T23:59:59.000Z
By taking a Klein-Gordon field as the environment of an harmonic oscillator and using a new method for dealing with quantum dissipative systems (minimal coupling method), the quantum dynamics and radiation reaction for a quantum damped harmonic oscillator investigated. Applying perturbation method, some transition probabilities indicating the way energy flows between oscillator, reservoir and quantum vacuum, obtained
Impact of stray capacitance on hvdc harmonics
Larsen, E.V.; Sublich, M.; Kapoor, S.C.
1989-01-01T23:59:59.000Z
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.
CHAPLIN - Complex Harmonic Polylogarithms in Fortran
Stephan Buehler; Claude Duhr
2011-06-28T23:59:59.000Z
We present a new Fortran library to evaluate all harmonic polylogarithms up to weight four numerically for any complex argument. The algorithm is based on a reduction of harmonic polylogarithms up to weight four to a minimal set of basis functions that are computed numerically using series expansions allowing for fast and reliable numerical results.
SmartCharge: Cutting the Electricity Bill in Smart Homes with Energy Storage
Shenoy, Prashant
SmartCharge: Cutting the Electricity Bill in Smart Homes with Energy Storage Aditya Mishra, David,irwin,shenoy,kurose}@cs.umass.edu Ting Zhu Binghamton University tzhu@binghamton.edu ABSTRACT Market-based electricity pricing provides consumers an op- portunity to lower their electric bill by shifting consump- tion to low price periods
Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-UpHeat PumpRecordFederal7.pdfFlash_2010_-24.pdfOverview Flow CellsOREGON ON-BILL
Downing, Timothy R.; Fangman, Patricia M.; Homer, Brian J.; Johnson, Daniel M.; Johnson, Ranata L.; Johnson, Sharon M.; Millard, W. David; Stoops, Lamar R.; Wood, Blanche M.
1999-03-05T23:59:59.000Z
Federal Emergency Management Information System (FEMIS) Bill of Materials (BOM) for FEMIS Version 1.4.6
Comparison of CHEERS energy use predictions with actual utility bills
Wilcox, B.A.; Hunt, M.B.
1998-07-01T23:59:59.000Z
The usefulness of Home Energy Rating Systems (HERS) is primarily derived from the accurate analysis of the present energy efficiency of a home and the cost effectiveness of the measures that are recommended for improving its efficiency. The Energy Efficient Mortgage is predicated on the concept that the mortgage money spent to improve the efficiency of a home will cost less per months to finance that the utility bill savings that are generated. Computer simulation programs are used to estimate the annual energy used for heating, cooling and domestic hot water. A large sample of rated homes in San Jose California was analyzed to compare predicted energy sue with actual bills. The HERS predictions for both heating and cooling were found to significantly overestimate the energy use of low rated homes compared to efficient homes. Cooling energy use of low rated homes with air conditioning was actually lower than for efficient homes with air conditioning. Significant correlation between family characteristics and home efficiency are thought to be part of the reason for this dilemma. A number of areas are proposed for further work to improve the HERS estimates.
A high-fidelity harmonic drive model.
Preissner, C.; Royston, T. J.; Shu, D. (APS Engineering Support Division); ( MCS); (Univ. of Illinois)
2012-01-01T23:59:59.000Z
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.
Localized waves with spherical harmonic symmetries
Mills, M. S.
We introduce a class of propagation invariant spatiotemporal optical wave packets with spherical harmonic symmetries in their field configurations. The evolution of these light orbitals is considered theoretically in ...
SPECTRAL APPROXIMATION OF TIME-HARMONIC MAXWELL ...
2014-10-25T23:59:59.000Z
the electric permittivity, ? is the frequency of the harmonic wave, n is the unit outward normal of D ... In order to deal with more general scatterers D and non-
boundary behavior of univalent harmonic mappings
1910-70-32T23:59:59.000Z
valent harmonic mapping f from the unit disk U “onto” a bounded convex ..... Our next result examines the stability of a function f given in The- orem 2 upon the ...
SEVENTH HARMONIC 20 GHz CO-GENERATOR
Hirshfield, Jay L
2014-04-08T23:59:59.000Z
To satisfy the need for multi-MW rf sources in frequency ranges where commercial sources do not exist, a study was undertaken on a class of devices based on gyro-harmonic frequency multiplication. This mechanism relies upon adding energy in gyrating motion to a linear electron beam that traverses a rotating-mode TE111-mode drive cavity in a dc magnetic field. The beam then drifts along the magnetic field into a second cavity, operating in the TEn11-mode tuned to the nth harmonic of the drive cavity. Studies of this configuration have been carried out for 2 < n < 7. Results are given for multi-MW, efficient operation of a 7th harmonic device operating at 20 GHz, and a 2nd harmonic device operating at 22.4 GHz.
Harmonic Representation of Combinations and Partitions
Michalis Psimopoulos
2011-03-01T23:59:59.000Z
In the present article a new method of deriving integral representations of combinations and partitions in terms of harmonic products has been established. This method may be relevant to statistical mechanics and to number theory.
Dual aperture dipole magnet with second harmonic component
Praeg, W.F.
1983-08-31T23:59:59.000Z
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.
Dual aperture dipole magnet with second harmonic component
Praeg, Walter F. (Palos Park, IL)
1985-01-01T23:59:59.000Z
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.
Local Harmonic Estimation in Musical Sound Rafael A. IRIZARRY
Irizarry, Rafael A.
Local Harmonic Estimation in Musical Sound Signals Rafael A. IRIZARRY Statistical modeling so a local harmonic model that tracks changes in pitch and in the amplitudes of the harmonics is fit estimates of the harmonic signal and of the noise signal. Different musical composition applications may
High-Order Harmonic Generation of Heteronuclear Diatomic Molecules
Chu, Shih-I
High-Order Harmonic Generation of Heteronuclear Diatomic Molecules in Intense Ultrashort Laser ionization (MPI) and high-order harmonic generation (HHG) processes of N2 and CO molecules in intense laser of the homonuclear N2 molecule can generate only odd harmonics, both even and odd harmonics can be produced from
Coherent states for the nonlinear harmonic oscillator
Ghosh, Subir [Physics and Applied Mathematics Unit, Indian Statistical Institute, 203 B. T. Road, Kolkata 700108 (India)
2012-06-15T23:59:59.000Z
Wave packets for the quantum nonlinear oscillator are considered in the generalized coherent state framework. To first order in the nonlinearity parameter the coherent state behaves very similar to its classical counterpart. The position expectation value oscillates in a simple harmonic manner. The energy-momentum uncertainty relation is time independent as in a harmonic oscillator. Various features (such as the squeezed state nature) of the coherent state have been discussed.
Nonlinearly driven harmonics of Alfvén modes
Zhang, B., E-mail: bozhang@austin.utexas.edu; Breizman, B. N.; Zheng, L. J.; Berk, H. L. [Institute for Fusion Studies, The University of Texas at Austin, Austin, Texas 78712 (United States)] [Institute for Fusion Studies, The University of Texas at Austin, Austin, Texas 78712 (United States)
2014-01-15T23:59:59.000Z
In order to study the leading order nonlinear magneto-hydrodynamic (MHD) harmonic response of a plasma in realistic geometry, the AEGIS code has been generalized to account for inhomogeneous source terms. These source terms are expressed in terms of the quadratic corrections that depend on the functional form of a linear MHD eigenmode, such as the Toroidal Alfvén Eigenmode. The solution of the resultant equation gives the second order harmonic response. Preliminary results are presented here.
Cabral, Marco
Harmonic Functions are Real Analytic1 On this very short note we prove that harmonic functions prove Lemma 1 using the mean value property of harmonic functions, Green's theorem and the maximum principle. Lemma 1 (estimate on first derivative) Suppose w is harmonic in Rn , > 0, y and B
Bubble tree convergence for the harmonic sequence of harmonic surfaces in CPn
Lu, Tiao
] 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
DOE WINDExchange Webinar: Rural Energy for America Program 2014 Farm Bill
Broader source: Energy.gov [DOE]
In February, Congress passed a new Farm Bill that includes an Energy Title. The Rural Energy for America Program (REAP) provides grants and loan guarantees to farmers, ranchers, and rural small...
Live Webcast on the 2014 Farm Bill's Renewable Energy for America Program
Broader source: Energy.gov [DOE]
The Energy Department will present a live webcast titled “The 2014 Farm Bill's Renewable Energy for America Program” on May 21, 2014, from 3:00 to 4:00 p.m. Eastern Standard Time.
Software Roadmap to Plug and Play Petaflop/s Editor: Bill Kramer (wtkramer@lbl.gov)
Geddes, Cameron Guy Robinson
LBNL-59999 Software Roadmap to Plug and Play Petaflop/s Editor: Bill Kramer (wtkramer Software Roadmap to Plug and Play Petaflop/s 1 Software Roadmap to Plug and Play Petaflop/s In the next
Analysis of Five Selected Tax Provisions of the Conference Energy Bill of 2003
Reports and Publications (EIA)
2004-01-01T23:59:59.000Z
This special report was undertaken at the January 29, 2004, request of Senator John Sununu to perform an assessment of five specific tax provisions of the Conference Energy Bill of 2003.
Impacts of House Bill 56 on the Construction Economy in Alabama
Bilbo, David; Escamilla, Edelmiro; Bigelow, Ben F.; Garcia, Jose
bill, and its impact on the construction economy in Alabama. The study utilized construction employment rates, construction GDP, and construction spending as the major indices detailing the “health” of the construction economy in Alabama. This research...
High-harmonic spectroscopy of molecular isomers
Wong, M. C. H.; Brichta, J.-P.; Bhardwaj, V. R. [Department of Physics, University of Ottawa, 150 Louis-Pasteur, Ottawa, Ontario, K1N 6N5 (Canada); Spanner, M.; Patchkovskii, S. [National Research Council of Canada, 100 Sussex Drive, Ottawa, Ontario, K1A 0R6 (Canada)
2011-11-15T23:59:59.000Z
We demonstrate that high-order-harmonic generation (HHG) spectroscopy can be used to probe stereoisomers of randomly oriented 1,2-dichloroethylene (C{sub 2}H{sub 2}Cl{sub 2}) and 2-butene (C{sub 4}H{sub 8}). The high-harmonic spectra of these isomers are distinguishable over a range of laser intensities and wavelengths. Time-dependent numerical calculations of angle-dependent ionization yields for 1,2-dichloroethylene suggest that the harmonic spectra of molecular isomers reflect differences in their strong-field ionization. The subcycle ionization yields for the cis isomer are an order of magnitude higher than those for the trans isomer. The sensitivity in discrimination of the harmonic spectra of cis- and trans- isomers is greater than 8 and 5 for 1,2-dichloroethylene and 2-butene, respectively. We show that HHG spectroscopy cannot differentiate the harmonic spectra of the two enantiomers of the chiral molecule propylene oxide (C{sub 3}H{sub 6}O).
Son, Dong Hee; Wittenberg, Joshua S.; Banin, Uri; Alivisatos, A. Paul
2006-01-01T23:59:59.000Z
Second harmonic generation and confined acoustic phonons inenhancement of second harmonic generation, and the effect ofmeasurements. The second harmonic signal showed a sublinear
Milosevic, D. B. [Faculty of Science, University of Sarajevo, Zmaja od Bosne 35, 71000 Sarajevo (Bosnia and Herzegowina); Max-Born-Institut, Max-Born-Str. 2a, D-12489 Berlin (Germany)
2010-02-15T23:59:59.000Z
Experimentally observed strong enhancement of a single high-order harmonic in harmonic generation from low-ionized laser plasma ablation is explained as resonant harmonic generation. The resonant harmonic intensity increases regularly with the increase of the laser intensity, while the phase of the resonant harmonic is almost independent of the laser intensity. This is in sharp contrast with the usual plateau and cutoff harmonics, the intensity of which exhibits wild oscillations while its phase changes rapidly with the laser intensity. The temporal profile of a group of harmonics, which includes the resonant harmonic, has the form of a broad peak in each laser-field half cycle. These characteristics of resonant harmonics can have an important application in attoscience. We illustrate our results using examples of Sn and Sb plasmas.
Quantum dynamics of the damped harmonic oscillator
Philbin, T G
2012-01-01T23:59:59.000Z
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.
Quantum dynamics of the damped harmonic oscillator
T. G. Philbin
2012-05-11T23:59:59.000Z
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.
Plug-in privacy for Smart Metering billing
Jawurek, Marek; Kerschbaum, Florian
2010-01-01T23:59:59.000Z
Smart Metering is a concept that allows to collect fine-grained consumption profiles from customers by replacing traditional electricity meters with Smart Meters in customers' households. The recorded consumption profile is the basis for the calculation of time-dependent tariffs but also allows deduction of the inhabitant's personal schedules and habits. The current reporting of such consumption profiles only protects this data from 3rd parties but falls short to protect the customer's privacy from illegitimate abuse by the supplier itself. We propose a privacy-preserving profile reporting protocol that enables billing for time-dependent tariffs without disclosing the actual data of the consumption profile to the supplier. Our approach relies on a zero-knowledge proof based on Pedersen Commitments performed by a plug-in privacy component that is put into the communication link between Smart Meter and supplier's back-end systems and requires no change to Smart Meter hardware and only little change to the softw...
Spherical Harmonic Decomposition on a Cubic Grid
Charles W. Misner
1999-10-12T23:59:59.000Z
A method is described by which a function defined on a cubic grid (as from a finite difference solution of a partial differential equation) can be resolved into spherical harmonic components at some fixed radius. This has applications to the treatment of boundary conditions imposed at radii larger than the size of the grid, following Abrahams, Rezzola, Rupright et al.(gr-qc/9709082}. In the method described here, the interpolation of the grid data to the integration 2-sphere is combined in the same step as the integrations to extract the spherical harmonic amplitudes, which become sums over grid points. Coordinates adapted to the integration sphere are not needed.
Hughes, Larry
The Inverted Block Rate:The Inverted Block Rate: An Alternative to Flat Rate BillingAn Alternative;Inverted Block RateInverted Block Rate 22 IntroductionIntroduction Â·Â· Modern societies rely on electrical collectionMetering and Rate Models facilitate collection #12;Inverted Block RateInverted Block Rate 33 Rate
accounting standards harmonization: Topics by E-print Network
Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)
numbers were Introduced by Ore 6 In 1948, though not under that name. A natural number n is harmonic if the harmonic mean of its positive divisors is an integer....
Kellie Harmon, University Ombuds Prof. Maria Orive, Faculty Ombuds
University Ombuds Office Bi-Annual Report 2009- 2011 Kellie Harmon, University Ombuds Prof. Maria & July 1, 2010 Â June 30, 2011 Kellie Harmon, University Ombuds Prof. Maria Orive, Faculty Ombuds Prof
Second Harmonic Generation Studies of Fe(II) Interactions with...
Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)
Second Harmonic Generation Studies of Fe(II) Interactions with Hematite (?-Fe2O3). Second Harmonic Generation Studies of Fe(II) Interactions with Hematite (?-Fe2O3)....
Harmonic Fluids Changxi Zheng Doug L. James
Columbia University
Harmonic Fluids Changxi Zheng Doug L. James Cornell University Abstract Fluid sounds- ing. Furthermore, while offline applications can rely on talented foley artists to "cook up" plausible for vortex-based fluid sounds [Dobashi et al. 2003] and solid bodies [O'Brien et al. 2001; James et al. 2006
Harmonic filter assessments at a Battery Plant
Adams, R.; Davis, J.; Callaghan, P.; Ray, L.
1995-12-31T23:59:59.000Z
The facility set a peak demand of just over four megawatts in the twelve months prior to the plant expansion work. It contains 831 rectifier circuits, which represent about 60% of the plant load. Production is divided between building the batteries and charging them. The charging load can be carried based on production, or based on other parameters such as cost of electricity. The plant is served at 480 volts from Duke`s 44-kV sub-transmission system. Prior to the expansion, Duke operated two 1200-kvar switched capacitor banks on the 480-V bus for voltage regulation. After the expansion, Duke removed the capacitors and Freeborn installed a 1016-kvar switched harmonic filter on each delivery point. Inside the plant, Exide operates twelve 84-kvar harmonic filters on individual feeders. All harmonic filters are tuned to the 4.7th harmonic. As mentioned above, Exide operates 831 rectifier circuits. The typical AC system serving rectifiers consists of a 460/230-V transformer, connected wye-delta, rated at 124 kVA. This transformer serves 16 rectifiers. Note that the six-pulse bridge circuit consists of uncontrolled diodes. DC current control is achieved by adjusting current flow through the saturable AC reactors.
VOLUMETRIC HARMONIC BRAIN MAPPING Yalin Wang1
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
Motion Planning with Gamma-Harmonic Potential
Masoud, Ahmad A.
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
Markovian evolution of strongly coupled harmonic oscillators
Chaitanya Joshi; Patrik Ohberg; James D. Cresser; Erika Andersson
2014-12-16T23:59:59.000Z
We investigate how to model Markovian evolution of coupled harmonic oscillators, each of them interacting with a local environment. When the coupling between the oscillators is weak, dissipation may be modeled using local Lindblad terms for each of the oscillators in the master equation, as is commonly done. When the coupling between oscillators is strong, this model may become invalid. We derive a master equation for two coupled harmonic oscillators which are subject to individual heat baths modeled by a collection of harmonic oscillators, and show that this master equation in general contains non-local Lindblad terms. We compare the resulting time evolution with that obtained for dissipation through local Lindblad terms for each individual oscillator, and show that the evolution is different in the two cases. In particular, the two descriptions give different predictions for the steady state and for the entanglement between strongly coupled oscillators. This shows that when describing strongly coupled harmonic oscillators, one must take great care in how dissipation is modeled, and that a description using local Lindblad terms may fail. This may be particularly relevant when attempting to generate entangled states of strongly coupled quantum systems.
Compatibility of radial, Lorenz and harmonic gauges
Elena Magliaro; Claudio Perini; Carlo Rovelli
2007-05-07T23:59:59.000Z
We observe that the radial gauge can be consistently imposed \\emph{together} with the Lorenz gauge in Maxwell theory, and with the harmonic traceless gauge in linearized general relativity. This simple observation has relevance for some recent developments in quantum gravity where the radial gauge is implicitly utilized.
Parametric Estimation of Harmonically Related Sinusoids
Dixit, Richa
2010-04-01T23:59:59.000Z
Mud-pulse telemetry is a method used for measurement-while-drilling (MWD)in the oil industry. The telemetry signals are corrupted by spurious mud pump noise consisting of a large number of harmonically related sinusoids. In order to denoise...
Harmonic experiments to model fracture induced anisotropy KAUST ...
santos,,,
May 9, 2012 ... hydrocarbon and geothermal reservoirs are mainly composed of fractured rocks. Harmonic experiments to model fracture induced anisotropy ...
Selective compensation of voltage harmonics in grid-connected microgrids
Vasquez, Juan Carlos
1 Selective compensation of voltage harmonics in grid-connected microgrids Mehdi Savaghebia , Juan is proposed for selective compensation of main voltage harmonics in a grid- connected microgrid. The aim level. Keywords Distributed Generator (DG); microgrid; grid-connected; voltage harmonics compensation. 1
Approximation of Harmonic Maps and Wave Maps Soren Bartels
Bartels, Soeren
Approximation of Harmonic Maps and Wave Maps SÂ¨oren Bartels Partial differential equations to certain boundary condtions. If X = then critical points u : N are called harmonic maps into N, Â·) = u0, tu(0, Â·) = v0. To approximate harmonic maps or wave maps we consider a regular triangula- tion
Isolated attosecond pulses using a detuned second-harmonic field
Neumark, Daniel M.
Isolated attosecond pulses using a detuned second-harmonic field Hamed Merdji,1,2, * Thierry 2 . The slight detuning of the second harmonic is used to break the symmetry of the electric field-order harmonics generation (HHG) of intense laser pulses in gases is attracting much attention due to both
Tracking butterfly flight paths across the landscape with harmonic radar
Northampton, University of
Tracking butterfly flight paths across the landscape with harmonic radar E. T. Cant1,*, A. D. Smith of five butterfly species were successfully tracked using harmonic radar within an agricultural landscape. Keywords: butterfly flight; harmonic radar; linear landscape features; Aglais urticae; Inachis io 1
The Harmonic Series Diverges Again and Again Steven J. Kifowit
California at Santa Cruz, University of
The Harmonic Series Diverges Again and Again Steven J. Kifowit Prairie State College Terra A. Stamps Prairie State College The harmonic series, n=1 1 n = 1 + 1 2 + 1 3 + 1 4 + 1 5 + Â· Â· Â· , is one, the harmonic series provides the instructor with a wealth of opportunities. The leaning tower of lire (Johnson
Second harmonic imaging of membrane potential of neurons with retinal
Columbia University
Second harmonic imaging of membrane potential of neurons with retinal Boaz A. Nemet Volodymyr of neurons, using the nonlinear optical phenom- enon of second harmonic generation (SHG) with a photopigment reti- nal as the chromophore [second harmonic retinal imaging of mem- brane potential (SHRIMP)]. We
Harmonic moment dynamics in Laplacian growth Alexander Leshchiner,1
Texas at Austin. University of
Harmonic moment dynamics in Laplacian growth Alexander Leshchiner,1 Matthew Thrasher,1 Mark B received 12 November 2009; published 12 January 2010 Harmonic moments are integrals of integer powers of z horizontal closely spaced plates. Harmonic moments are a natural basis for such Laplacian growth phenomena
Temporal-Harmonic Specific POD Mode Extraction Gilead Tadmor
Dabiri, John O.
Temporal-Harmonic Specific POD Mode Extraction Gilead Tadmor and Daniel Bissex Electrical changes the systems mean field changes significantly, as does the leading shedding harmonic4 , once mode pair will capture harmonically rich time dynamics, reflecting a spatial mix of multiple vortical
Physics 5B Winter 2009 Solving the Simple Harmonic Oscillator
California at Santa Cruz, University of
Physics 5B Winter 2009 Solving the Simple Harmonic Oscillator 1. The harmonic oscillator solution: displacement as a function of time We wish to solve the equation of motion for the simple harmonic oscillator shall employ for solving this di#erential equation is called the method of inspired guessing. In class
Physics 5B Winter 2009 Solving the Simple Harmonic Oscillator
California at Santa Cruz, University of
Physics 5B Winter 2009 Solving the Simple Harmonic Oscillator 1. The harmonic oscillator solution: displacement as a function of time We wish to solve the equation of motion for the simple harmonic oscillator employ for solving this differential equation is called the method of inspired guessing. In class, we
Analyzing Correlation Functions with Tesseral and Cartesian Spherical Harmonics
Pawel Danielewicz; Scott Pratt
2006-12-17T23:59:59.000Z
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.
Analyzing Correlation Functions with Tesseral and Cartesian Spherical Harmonics
Danielewicz, P; Danielewicz, Pawel; Pratt, Scott
2006-01-01T23:59:59.000Z
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...
Analyzing correlation functions with tesseral and Cartesian spherical harmonics
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
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.
Generalized harmonic formulation in spherical symmetry
Evgeny Sorkin; Matthew W. Choptuik
2010-04-30T23:59:59.000Z
In this pedagogically structured article, we describe a generalized harmonic formulation of the Einstein equations in spherical symmetry which is regular at the origin. The generalized harmonic approach has attracted significant attention in numerical relativity over the past few years, especially as applied to the problem of binary inspiral and merger. A key issue when using the technique is the choice of the gauge source functions, and recent work has provided several prescriptions for gauge drivers designed to evolve these functions in a controlled way. We numerically investigate the parameter spaces of some of these drivers in the context of fully non-linear collapse of a real, massless scalar field, and determine nearly optimal parameter settings for specific situations. Surprisingly, we find that many of the drivers that perform well in 3+1 calculations that use Cartesian coordinates, are considerably less effective in spherical symmetry, where some of them are, in fact, unstable.
Quantum decoherence of the damped harmonic oscillator
A. Isar
2006-06-27T23:59:59.000Z
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.
Harmonic polylogarithms for massive Bhabha scattering
M. Czakon; J. Gluza; T. Riemann
2005-08-19T23:59:59.000Z
One- and two-dimensional harmonic polylogarithms, HPLs and GPLs, appear in calculations of multi-loop integrals. We discuss them in the context of analytical solutions for two-loop master integrals in the case of massive Bhabha scattering in QED. For the GPLs we discuss analytical representations, conformal transformations, and also their transformations corresponding to relations between master integrals in the s- and t-channel.
${\\cal D}$-deformed harmonic oscillators
F. Bagarello; F. Gargano; D. Volpe
2014-12-30T23:59:59.000Z
We analyze systematically several deformations arising from two-dimensional harmonic oscillators which can be described in terms of $\\cal{D}$-pseudo bosons. They all give rise to exactly solvable models, described by non self-adjoint hamiltonians whose eigenvalues and eigenvectors can be found adopting the quite general framework of the so-called $\\cal{D}$-pseudo bosons. In particular, we show that several models previously introduced in the literature perfectly fit into this scheme.
Harmon, Illinois: Energy Resources | Open Energy Information
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia: Energy Resources Jump to: navigation,Ohio:Greer County is8584Â°,Hardy County, West Virginia:Harmon County
Breuer, G D; Chow, J H; Lindh, C B; Miller, N W; Numrich, F H; Price, W W; Turner, A E; Whitney, R R
1982-09-01T23:59:59.000Z
Improved methods are needed to characterize ac system harmonic behavior for ac filter design for HVDC systems. The purpose of this General Electric Company RP1138 research is to evaluate the present filter design practice and to investigate methods for calculating system harmonic impedances. An overview of ac filter design for HVDC systems and a survey of literature related to filter design have been performed. Two methods for calculating system harmonic impedances have been investigated. In the measurement method, an instrumentation system for measuring system voltage and current has been assembled. Different schemes of using the measurements to calculate system harmonic impedances have been studied. In the analytical method, a procedure to include various operating conditions has been proposed. Computer programs for both methods have been prepared, and the results of the measurement and analytical methods analyzed. A conclusion of the project is that the measurement and analytical methods both provided reasonable results. There are correlations between the measured and analytical results for most harmonics, although there are discrepancies between the assumptions used in the two methods. A sensitivity approach has been proposed to further correlate the results. From the results of the analysis, it is recommended that both methods should be tested further. For the measurement method, more testing should be done to cover different system operating conditions. In the analytical method, more detailed models for representing system components should be studied. In addition, alternative statistical and sensitivity approaches should be attempted.
The University of Tennessee Health Science Center Clinical Trial Billing Procedure
Cui, Yan
personnel engaged in clinical trial financial operations (budgeting, billing, etc.) will be required of these documents. (3) sends the Request to Conduct Research Form to the applicable facility(ies), if required, and Study Site/Services Agreement to Finance & Operations, if required, prior to any participants receiving
A Proposed Method for Improving Residential Heating Energy Estimates Based on Billing Data
Lee, A. D.; Hadley, D. L.
1988-01-01T23:59:59.000Z
on these homes by the Bonneville Power Administration (Bonneville) and Pacific Power. Manufactured home billing data, for four years, and 15-min. measured space-heating data for a subset of homes, for two years, were available to us for analysis. Data were...
VENDOR/PAYEE: VENDOR BILLING INFORMATION (e.g. VENDOR INVOICE NUMBER; CLIENT NAME; DATE; etc.)
Oliver, Douglas L.
RPT. TYPE VENDOR/PAYEE: ADDRESS: VENDOR BILLING INFORMATION (e.g. VENDOR INVOICE NUMBER; CLIENT Resident for Tax Purposes Non Resident Alien (Please attach Alien Information Collection Form) VENDOR PAYMENT VOUCHER (FORM CO-17) DOCUMENT NO. RECEIPT DATE P.O./P.S.A. NO. VENDOR FEIN/SSN STATUS
Excerpts from Senate Report 109-084 ENERGY AND WATER APPROPRIATIONS BILL, 2006
Excerpts from Senate Report 109-084 ENERGY AND WATER APPROPRIATIONS BILL, 2006 June 16, 2005 Dark Energy Mission [JDEM] in answering fundamental questions about the nature and substance of the Department's missions in national security, energy security and economic security. Programs funded under
Cooperative Extension of Schoharie County Slashes Energy Bills by $2,400 per Year
Keinan, Alon
Association, understood that an energy audit would save the organization money and reduce energy consumption knew that another would definitely allow us to update our energy conservation plan and would definitelyCooperative Extension of Schoharie County Slashes Energy Bills by $2,400 per Year Audit
Newhall, Tia
management is queueing, or the process of collecting together ``work'' to be executed on a set of resourcesWorkload Management: More Than Just Job Scheduling James Patton Jones, Bill Nitzberg and Bob "workload management" and scheduling are synomnous. This is not the case. Scheduling is in fact just one out
A Counterflow Pipeline Experiment Bill Coates, Jo Ebergen, Jon Lexau, Scott Fairbanks, Ian Jones,
Harris, David Money
A Counterflow Pipeline Experiment Bill Coates, Jo Ebergen, Jon Lexau, Scott Fairbanks, Ian Jones The counterflow pipeline architecture [12] consists of two interacting pipelines in which data items flow in op. The maximum total throughput of the chip, which is the sum of the throughputs of the two pipelines, varies
Brief respecting Bill C-27, The Canadian Food Inspection Agency Enforcement Act
Clark, E. Ann
dependence on imported food. Uthe implications of global warming on many aspects of farm operation and risk symptoms - including Bill C-27 - and focus instead on the causes of our many problems. Craft new, "era potentially restricting global trade, altering apparent scale-dependent economies, and profiling our worrying
Oil drilling to use LSU process Show Caption BILL FEIG/THE ADVOCATE
is providing Tiger Bullets to two major exploration and production companies, one in the Fayetteville ShaleBUSINESS Oil drilling to use LSU process Show Caption BILL FEIG/THE ADVOCATE Advocate staff process to make wood-plastic composites has found a new application in the oil and gas business
Monroe County Extension Saves $2,000 Annually on Utility Bills
Keinan, Alon
antiquated tube boilers with new, high-efficiency, condensing boilers. Projected Savings Over $2,000 per year% efficiency, were replaced with 95%-efficiency condensing boilers. The new boilers use 70% less water, operateMonroe County Extension Saves $2,000 Annually on Utility Bills Heating Efficiency Upgrades Lower
Senate Bill No. 76 An act to amend the heading of Chapter 14 (commencing with Section
for hydrogen fuels for use in internal combustion engines and fuel cells in motor vehicles until a standards standards for hydrogen fuels for use in internal combustion engines and fuel cells in motor vehicles to these provisions, unless specified requirements are met. This bill would add hydrogen fuels to these provisions
Harmonic pinnacles in the Discrete Gaussian model
Eyal Lubetzky; Fabio Martinelli; Allan Sly
2014-05-20T23:59:59.000Z
The 2D Discrete Gaussian model gives each height function $\\eta : \\mathbb{Z}^2\\to\\mathbb{Z}$ a probability proportional to $\\exp(-\\beta \\mathcal{H}(\\eta))$, where $\\beta$ is the inverse-temperature and $\\mathcal{H}(\\eta) = \\sum_{x\\sim y}(\\eta_x-\\eta_y)^2$ sums over nearest-neighbor bonds. We consider the model at large fixed $\\beta$, where it is flat unlike its continuous analog (the Gaussian Free Field). We first establish that the maximum height in an $L\\times L$ box with 0 boundary conditions concentrates on two integers $M,M+1$ with $M\\sim \\sqrt{(1/2\\pi\\beta)\\log L\\log\\log L}$. The key is a large deviation estimate for the height at the origin in $\\mathbb{Z}^2$, dominated by "harmonic pinnacles", integer approximations of a harmonic variational problem. Second, in this model conditioned on $\\eta\\geq 0$ (a floor), the average height rises, and in fact the height of almost all sites concentrates on levels $H,H+1$ where $H\\sim M/\\sqrt{2}$. This in particular pins down the asymptotics, and corrects the order, in results of Bricmont, El-Mellouki and Fr\\"ohlich (1986), where it was argued that the maximum and the height of the surface above a floor are both of order $\\sqrt{\\log L}$. Finally, our methods extend to other classical surface models (e.g., restricted SOS), featuring connections to $p$-harmonic analysis and alternating sign matrices.
Algal Supply System Design - Harmonized Version
Abodeely, Jared; Stevens, Daniel; Ray, Allison; Newby, Deborah; Schaller, Kastli
2013-03-01T23:59:59.000Z
The objective of this design report is to provide an assessment of current technologies used for production, dewatering, and converting microalgae cultivated in open-pond systems to biofuel. The original draft design was created in 2011 and has subsequently been brought into agreement with the DOE harmonized model. The design report extends beyond this harmonized model to discuss some of the challenges with assessing algal production systems, including the ability to (1) quickly assess alternative algal production system designs, (2) assess spatial and temporal variability, and (3) perform large-scale assessments considering multiple scenarios for thousands of potential sites. The Algae Logistics Model (ALM) was developed to address each of these limitations of current modeling efforts to enable assessment of the economic feasibility of algal production systems across the United States. The (ALM) enables (1) dynamic assessments using spatiotemporal conditions, (2) exploration of algal production system design configurations, (3) investigation of algal production system operating assumptions, and (4) trade-off assessments with technology decisions and operating assumptions. The report discusses results from the ALM, which is used to assess the baseline design determined by harmonization efforts between U.S. DOE national laboratories. Productivity and resource assessment data is provided by coupling the ALM with the Biomass Assessment Tool developed at PNNL. This high-fidelity data is dynamically passed to the ALM and used to help better understand the impacts of spatial and temporal constraints on algal production systems by providing a cost for producing extracted algal lipids annually for each potential site.
Harmonic-Oscillator-Based Effective Theory
W. C. Haxton
2006-08-06T23:59:59.000Z
I describe harmonic-oscillator-based effective theory (HOBET) and explore the extent to which the effects of excluded higher-energy oscillator shells can be represented by a contact-gradient expansion in next-to-next-to-leading order (NNLO). I find the expansion can be very successful provided the energy dependence of the effective interaction, connected with missing long-wavelength physics associated with low-energy breakup channels, is taken into account. I discuss a modification that removes operator mixing from HOBET, simplifying the task of determining the parameters of an NNLO interaction.
Harmon Electric Assn Inc | Open Energy Information
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia: Energy Resources Jump to: navigation,Ohio:Greer County is8584Â°,Hardy County, West Virginia:Harmon County is
Simple connection between Faddeev's and the K-harmonic approaches
Coelho, H.T.; Gloeckle, W.; Delfino, A.
1980-10-01T23:59:59.000Z
By employing a system for three bound identical bosons, a simple connection is made between Faddeev's and the K-harmonic approaches.
Limitations and improvements for harmonic generation measurements
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
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.
Complex harmonic wave scattering asthe framework for investigation of bounded beam reflection their pro- files.We will verifythesestatementswith a largenumberof illustrations. I. COMPLEX HARMONIC WAVE REFLECTION AND TRANSMISSION A. Representation of a complex harmonic wave in a viscoelastic medium
Antonietta Vincenti, Maria; Campione, Salvatore; de Ceglia, Domenico; Capolino, Filippo; Scalora, Michael
2012-01-01T23:59:59.000Z
from metal shells 3.1. Second-harmonic generation from gold3.2. Third-harmonic generation from golddriven second- and third-harmonic generation at ?-near-zero
Nelson, Christopher Scott; Nelson, Christopher Scott
2012-01-01T23:59:59.000Z
3.2 Simple Cases of Non-Commutative -Harmonic Polyno-3.2.2 1-Harmonic Polynomials . . . . . . . . . . .1.2.1 Non-Commutative Harmonic and Subharmonic Poly-
COMBINATORIAL FORMULAS CONNECTED TO DIAGONAL HARMONICS AND MACDONALD POLYNOMIALS
Plotkin, Joshua B.
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
Wind Farm Structures' Impact on Harmonic Emission and Grid Interaction
Bak, Claus Leth
1 Wind Farm Structures' Impact on Harmonic Emission and Grid Interaction Lukasz Hubert Kocewiak, Jesper Hjerrild, Claus Leth Bak ABSTRACT HE impact of a wind farm's internal structures on harmonic in this paper. The largest wind farms in the world, Horns Rev 2 Offshore Wind Farm and Polish Karnice Onshore
Power line harmonic radiation (PLHR) observed by the DEMETER spacecraft
Santolik, Ondrej
Power line harmonic radiation (PLHR) observed by the DEMETER spacecraft F. Nemec,1,2 O. SantoliÂ´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
Power line harmonic radiation: A systematic study using DEMETER spacecraft
Santolik, Ondrej
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
Higher order harmonic detection for exploring nonlinear interactions
Vasudevan, Rama K [ORNL; Okatan, M. B. [University of New South Wales; Rajapaksa, Indrajit [Oak Ridge National Laboratory (ORNL); Kim, Yunseok [ORNL; Marincel, Dan [Materials Science and Engineering, Pennsylvania State University; Trolier-McKinstry, Susan [Pennsylvania State University; Jesse, Stephen [ORNL; Nagarajan, Valanoor [University of New South Wales; Kalinin, Sergei V [ORNL
2013-01-01T23:59:59.000Z
Nonlinear dynamics underpin a vast array of physical phenomena ranging from interfacial motion to jamming transitions. In many cases, decoupling the contributions of competing or co-existing mechanisms to the system response can be achieved through investigation of higher order harmonics. Here, a method using band excitation scanning probe microscopy to investigate higher order harmonics of the electromechanical response, with nanometer scale spatial resolution is presented. The utility of the technique is demonstrated by probing the first three harmonics of strain for a well-known system, a model Pb(Zr1-xTix)O3 ferroelectric capacitor. It is shown that the second order harmonic response is correlated with the first harmonic response, whereas the third harmonic is not. Additionally, nanoscale measurements of the second harmonic response with field reveal significant deviations from Rayleigh-type models in the form of a much more complicated field dependence than is observed in the spatially averaged data. These results illustrate the versatility of combining proximal probe techniques with nth harmonic detection methods in exploring and decoupling nonlinear dynamics in a wide variety of nanoscale materials.
Propagation of nonlinearly generated harmonic spin waves in microscopic stripes
Otani, Yoshichika
Propagation of nonlinearly generated harmonic spin waves in microscopic stripes O. Rousseau,1 M on the experimental study of the propagation of nonlinearly generated harmonic spin waves in microscopic CoFeB stripes wave propagation. VC 2014 AIP Publishing LLC. [http://dx.doi.org/10.1063/1.4864480] In recent years
Wang, W.
A METHODOLOGY TO DEVELOP MONTHLY ENERGY USE MODELS FROM UTILITY BILLING DATA FOR SEASONALLY SCHEDULED BUILDINGS: APPLICATION TO SCHOOLS A Thesis by WENYAN WANG Submitted to the Office of Graduate Studies of Texas A&M University in partial... fulfillment of the requirements for the degree of MASTER OF SCIENCE December 1998 Major Subject: Mechanical Engineering A METHODOLOGY TO DEVELOP MONTHLY ENERGY USE MODELS FROM UTILITY BILLING DATA FOR SEASONALLY SCHEDULED BUILDINGS: APPLICATION TO SCHOOLS A...
Near BPS Skyrmions and Restricted Harmonic Maps
J. M. Speight
2014-06-03T23:59:59.000Z
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 $F$.
Spectrum of second-harmonic radiation generated from incoherent light
Stabinis, A.; Pyragaite, V.; Tamosauskas, G.; Piskarskas, A. [Department of Quantum Electronics, Vilnius University, Sauletekio Avenue 9, Building 3, LT-10222 Vilnius (Lithuania)
2011-10-15T23:59:59.000Z
We report on the development of the theory of second-harmonic generation by an incoherent pump with broad angular and frequency spectra. We show that spatial as well as temporal walk-off effects in a nonlinear crystal result in angular dispersion of the second-harmonic radiation. We demonstrate that the acceptance angle in second-harmonic generation by incoherent light is caused by the width of the pump angular spectrum and the resulting angular dispersion of second-harmonic radiation but does not depend on crystal length. In this case the frequency spectrum of second-harmonic radiation is determined by its angular dispersion and the pump angular spectrum. The theory is supported by an experiment in which a LiIO{sub 3} crystal was pumped by a tungsten halogen lamp.
2012 ARPA-E Energy Innovation Summit: Fireside Chat with Steven Chu and Bill Gates
Chu, Steven (U.S. Department of Energy Secretary); Gates, Bill (Microsoft, Chairman); Podesta, John (Center for American Progress, Chair and Counselor)
2012-03-21T23:59:59.000Z
The third annual ARPA-E Energy Innovation Summit was held in Washington D.C. in February, 2012. The event brought together key players from across the energy ecosystem - researchers, entrepreneurs, investors, corporate executives, and government officials - to share ideas for developing and deploying the next generation of energy technologies. This video captures a session called 'Fireside Chat' that featured Steven Chu, the Secretary of Energy, and Bill Gates, Chairman of Microsoft Corporation. The session is moderated by John Podesta, Chair of the Center for American Progress. Energy Secretary Steven Chu and Microsoft Founder and Chairman Bill Gates exchanged ideas about how small businesses and innovators can overcome the challenges that face many startups.
Sellers, D.
2001-01-01T23:59:59.000Z
Using Utility Bills and Average Daily Energy Consumption to Target Commissioning Efforts and Track Building Performance By: David Sellers, Senior Engineer, Portland Energy Conservation Inc, Portland, Oregon ABSTRACT This paper discusses using basic... by contacting the author at: Dsellers@peci.org www.peci.org Phone: - 503-248-4636 extension 224 Mailing address through August 3, 2001 Portland Energy Conservation, Inc. 921 SW Washington Street Suite 312 Portland, Oregon 97205 Mailing address after August 3...
Carbon Cycle 2.0: Bill Collins: A future without CC2.0
Bill Collins
2010-09-01T23:59:59.000Z
Bill Collins speaks at the Carbon Cycle 2.0 kick-off symposium Feb. 1, 2010. We emit more carbon into the atmosphere than natural processes are able to remove - an imbalance with negative consequences. Carbon Cycle 2.0 is a Berkeley Lab initiative to provide the science needed to restore this balance by integrating the Labs diverse research activities and delivering creative solutions toward a carbon-neutral energy future. http://carboncycle2.lbl.gov/
Relativistic harmonic oscillator model for quark stars
Vishnu M. Bannur
2008-10-06T23:59:59.000Z
The relativistic harmonic oscillator (RHO) model of hadrons is used to study quark stars. The mass-radius relationship is obtained and compared with bag model of quark star, using Tolman-Oppenheimer-Volkoff equation. In this model, the outward degenerate pressure due to discrete Landau levels and Landau degeneracy balances the inward gravitational pressure. Where as in bag model the degenerate pressure is due to the standard continuum levels which balances the combined inward pressure due to gravitation and bag pressure. So in RHO model, the confinement effect is included in the degenerate pressure. We found a qualitative similarity, but quantitative differences in mass-radius relationship of quark stars in these two models. Masses and radii are relatively larger and the central energy densities, required for stable quark stars, are lower in RHO model than that of bag model.
E-Print Network 3.0 - alternating phase harmonic Sample Search...
Broader source: All U.S. Department of Energy (DOE) Office Webpages (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...
Xiang, D.; Colby, E.; Dunning, M.; Gilevich, S.; Hast, C.; Jobe, K.; McCormick, D.; Nelson, J.; Raubenheimer, T.O.; Soong, K.; Stupakov, G.; Szalata, Z.; Walz, D.; Weathersby, S.; Woodle, M.; /SLAC; ,
2012-02-15T23:59:59.000Z
Echo-enabled harmonic generation free electron lasers hold great promise for the generation of fully coherent radiation in x-ray wavelengths. Here we report the first evidence of high harmonics from the echo-enabled harmonic generation technique in the realistic scenario where the laser energy modulation is comparable to the beam slice energy spread. In this experiment, coherent radiation at the seventh harmonic of the second seed laser is generated when the energy modulation amplitude is about 2-3 times the slice energy spread. The experiment confirms the underlying physics of echo-enabled harmonic generation and may have a strong impact on emerging seeded x-ray free electron lasers that are capable of generating laserlike x rays which will advance many areas of science.
Darghouth, Naim; Barbose, Galen; Wiser, Ryan
2013-01-09T23:59:59.000Z
This scoping study investigates the impact of, and interactions among, three key sources of uncertainty in the future value of bill savings from customer-sited PV, focusing in particular on residential customers. These three sources of uncertainty are: changes to electricity market conditions that would affect retail electricity prices, changes to the types of retail rate structures available to residential customers with PV, and shifts away from standard net-metering toward other compensation mechanisms for residential PV. We investigate the impact of a range of electricity market scenarios on retail electricity prices and rate structures, and the resulting effects on the value of bill savings from PV. The scenarios include various levels of renewable and solar energy deployment, high and low natural gas prices, the possible introduction of carbon pricing, and greater or lesser reliance on utility-scale storage and demand response. We examine the bill savings from PV with time-invariant, flat residential retail rates, as well as with time-varying retail rates, including time-of-use (TOU) rates and real-time pricing (RTP). In addition, we explore a flat rate with increasing-block pricing (IBP). We evaluate the bill savings from PV with net metering, as currently allowed in many states, as well as scenarios with hourly netting, a partial form of net metering. This scoping study is the first known effort to evaluate these types of interactions in a reasonably comprehensive fashion, though by no means have we considered every possible change to electricity market conditions, retail rate structures, or PV compensation mechanisms. It focuses solely on the private value of bill savings for residential PV and does not seek to quantify the broader social or economic cost or value of solar electricity. Our analysis applies assumptions based loosely on California’s electricity market in a future year (2030); however, it is neither intended to forecast California’s future market, nor are our conclusions intended to have implications specific only to the California market. That said, some of the findings are unique to our underlying assumptions, as described further within the main body of the report, along with other key limitations.
SU(4) harmonic superspace and supersymmetric gauge theory
B. M. Zupnik
2014-10-10T23:59:59.000Z
We consider the harmonic-superspace formalism in the $N=4$ supersymmetry using the $SU(4)/SU(2)\\times SU(2)\\times U(1)$ harmonics which was earlier applied to the abelian gauge theory. The N=4 non-abelian constraints in a standard superspace are reformulated as the harmonic-superspace equations for two basic analytic superfields: the independent superfield strength W of a dimension 1 and the dimensionless harmonic gauge 4-prepotential V having the $U(1)$ charge 2. These constraint equations I manifestly depend on the Grassmann coordinates $\\theta$, although they are covariant under the unusual N=4 supersymmetry transformations. We analyze an alternative harmonic formalism of the supergauge theory for two unconstrained nonabelian analytic superfields W and V. The gauge-invariant action A(W,V) in this formalism contains $\\theta$ factors in each term, it is invariant under the $SU(4)$ automorphism group. In this model, the interaction of two infinite-dimensional N=4 supermultiplets with the physical and auxiliary fields arises at the level of component fields. The action A(W,V) generate analytic equations of motion II alternative to the harmonic-superspace superfield constraints I. Both sets of equations give us the equivalent equations for the physical component fields of the $N=4$ gauge supermultiplet, they connect auxiliary and physical fields of two superfields. The nonlinear effective interaction of the abelian harmonic superfield W is constructed.
Relativistic high harmonic generation in gas jet targets
Pirozhkov, A.S.; Kando, M.; Esirkepov, T.Zh.; and others
2012-07-11T23:59:59.000Z
We experimentally demonstrate a new regime of high-order harmonic generation by relativistic-irradiance lasers in gas jet targets. Bright harmonics with both odd and even orders, generated by linearly as well as circularly polarized pulses, are emitted in the forward direction, while the base harmonic frequency is downshifted. A 9 TW laser generates harmonics up to 360 eV, within the 'water window' spectral region. With a 120 TW laser producing 40 uJ/sr per harmonic at 120 eV, we demonstrate the photon number scalability. The observed harmonics cannot be explained by previously suggested scenarios. A novel high-order harmonics generation mechanism [T. Zh. Esirkepov et al., AIP Proceedings, this volume], which explains our experimental findings, is based on the phenomena inherent in the relativistic laser - underdense plasma interactions (self-focusing, cavity evacuation, and bow wave generation), mathematical catastrophe theory which explains formation of electron density singularities (cusps), and collective radiation due to nonlinear oscillations of a compact charge.
High order harmonic generation in dual gas multi-jets
Tosa, Valer, E-mail: valer.tosa@itim-cj.ro, E-mail: calin.hojbota@itim-cj.ro; Hojbota, Calin, E-mail: valer.tosa@itim-cj.ro, E-mail: calin.hojbota@itim-cj.ro [National Institute for Research and Development of Isotopic and Molecular Technologies, Donath 65-103, 400293 Cluj-Napoca (Romania)] [National Institute for Research and Development of Isotopic and Molecular Technologies, Donath 65-103, 400293 Cluj-Napoca (Romania)
2013-11-13T23:59:59.000Z
High order harmonic generation (HHG) in gas media suffers from a low conversion efficiency that has its origins in the interaction of the atom/molecule with the laser field. Phase matching is the main way to enhance the harmonic flux and several solutions have been designed to achieve it. Here we present numerical results modeling HHG in a system of multi-jets in which two gases alternate: the first gas jet (for example Ne) generates harmonics and the second one which ionizes easier, recover the phase matching condition. We obtain configurations which are experimentally feasible with respect to pressures and dimensions of the jets.
Second harmonic effect on geodesic modes in tokamak plasmas
Elfimov, A. G.; Galvão, R. M. O. [Institute of Physics, University of São Paulo, São Paulo 05508-090 (Brazil)] [Institute of Physics, University of São Paulo, São Paulo 05508-090 (Brazil); Smolyakov, A. I. [University of Saskatchewan, 116 Science Place, Saskatoon S7N 5E2 (Canada) [University of Saskatchewan, 116 Science Place, Saskatoon S7N 5E2 (Canada); Institute of Tokamak Physics, NRC “Kurchatov Institute,” 123182 Moscow (Russian Federation); Melnikov, A. V. [Institute of Tokamak Physics, NRC “Kurchatov Institute,” 123182 Moscow (Russian Federation)] [Institute of Tokamak Physics, NRC “Kurchatov Institute,” 123182 Moscow (Russian Federation)
2013-05-15T23:59:59.000Z
Results of a kinetic treatment of Geodesic Acoustic Modes (GAMs) that fully takes into account ion parallel dynamics, including the magnetic field component, are presented. The finite-orbit-width (FOW) parameter is considered in the calculation of the second harmonic effect on GAMs. For larger values of the FOW parameter, it is shown that dispersive effects related to the m = 2 harmonics is the cause of the mode frequency splitting and the modes appear due to the interaction with the ion sound mode. Furthermore, the modes may have enhanced damping rates due to second harmonic Landau damping.
Harmonic measurements from a group connected generator HVdc converter scheme
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
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.
Generalized Harmonic Equations in 3+1 Form
J. David Brown
2011-11-29T23:59:59.000Z
The generalized harmonic equations of general relativity are written in 3+1 form. The result is a system of partial differential equations with first order time and second order space derivatives for the spatial metric, extrinsic curvature, lapse function and shift vector, plus fields that represent the time derivatives of the lapse and shift. This allows for a direct comparison between the generalized harmonic and the Arnowitt-Deser-Misner formulations. The 3+1 generalized harmonic equations are also written in terms of conformal variables and compared to the Baumgarte-Shapiro-Shibata-Nakamura equations with moving puncture gauge conditions.
Harmonic Superspace Gaugeon Formalism for the ABJM Theory
Mir Faizal
2012-07-12T23:59:59.000Z
In this paper we will analyse the ABJM theory in harmonic superspace. The harmonic superspace variables will be parameterized by the coset $SU(2)/U(1)$ and thus will have manifest $\\mathcal{N} =3$ supersymmetry. We will study the quantum gauge transformations and the BRST transformations of this theory in gaugeon formalism. We will use this BRST symmetry to project out the physical sub-space from the total Hilbert space. We will also show that the evolution of the $\\mathcal{S}$-matrix is unitary for this ABJM theory in harmonic superspace.
Arnold, Jonathan
should economic conditions require. Wedding Alcohol Service Bartenders Bartender charges are applicable will be added to the total bill. Prices are subject to change should economic condit
Transit usage and urban form : lessons for transit reliant neighborhoods
Mathema, Kiran B. (Kiran Bhakta), 1970-
2000-01-01T23:59:59.000Z
Cities are all about people and places. Travel occurs because people want to get to places - places of work, places of residence, places of shopping and so on. Hence, it is people and places that are more important, not ...
Reliant Energy Retail Services LLC | Open Energy Information
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of InspectorConcentrating Solar PowerstoriesNrelPartnerType Jump to:Co JumpRETScreenJamLLC Jump to:
Reliant Coastal Plains Biomass Facility | Open Energy Information
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia:FAQ < RAPID Jump to: navigation, searchVirginia Blue Ridge And Piedmont Provinces |Rehobeth,Reliable
Reliant Energy Power Supply LLC | Open Energy Information
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia:FAQ < RAPID Jump to: navigation, searchVirginia Blue Ridge And Piedmont Provinces
Reliant Energy Renewables Atascosita Biomass Facility | Open Energy
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Reliant Energy Retail Services, LLC Smart Grid Project | Open Energy
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia:FAQ < RAPID Jump to: navigation, searchVirginia Blue Ridge And Piedmont ProvincesInformation
Casimir Friction Force for Moving Harmonic Oscillators
Johan S. Høye; Iver Brevik
2011-11-21T23:59:59.000Z
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.
Coulomb crystals in the harmonic lattice approximation
D. A. Baiko; D. G. Yakovlev; H. E. De Witt; W. L. Slattery
1999-12-23T23:59:59.000Z
The dynamic structure factor ${\\tilde S}({\\bf k},\\omega)$ and the two-particle distribution function $g({\\bf r},t)$ of ions in a Coulomb crystal are obtained in a closed analytic form using the harmonic lattice (HL) approximation which takes into account all processes of multi-phonon excitation and absorption. The static radial two-particle distribution function $g(r)$ is calculated for classical ($T \\gtrsim \\hbar \\omega_p$, where $\\omega_p$ is the ion plasma frequency) and quantum ($T \\ll \\hbar \\omega_p$) body-centered cubic (bcc) crystals. The results for the classical crystal are in a very good agreement with extensive Monte Carlo (MC) calculations at $1.5 \\lesssim r/a \\lesssim 7$, where $a$ is the ion-sphere radius. The HL Coulomb energy is calculated for classical and quantum bcc and face-centered cubic crystals, and anharmonic corrections are discussed. The inelastic part of the HL static structure factor $S''(k)$, averaged over orientations of wave-vector {\\bf k}, is shown to contain pronounced singularities at Bragg diffraction positions. The type of the singularities is different in classical and quantum cases. The HL method can serve as a useful tool complementary to MC and other numerical methods.
Equivalent Circuit Analysis of Harmonic Distortions in Photodiode
Yu, Paul K.L.
1998-01-01T23:59:59.000Z
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.
Inverse medium scattering for three-dimensional time harmonic ...
2004-01-22T23:59:59.000Z
Jan 22, 2004 ... problem of time harmonic Maxwell equations in R3. ..... For a simple stability analysis, some relative random noise is added to the data, e.g., the.
Interference-Aware Geometric Modeling David Harmon1
Grinspun, Eitan
Interference-Aware Geometric Modeling David Harmon1 Daniele Panozzo1,2 Olga Sorkine1,3 Denis Zorin1 as glaring artifacts, and eliminate the ability to use the final model further down many software pipelines
Modeling and Estimating Current Harmonics of Variable Electronic Loads
Wichakool, Warit
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 ...
Electric shock and elevated EMF levels due to triplen harmonics
Tran, T.Q.; Conrad, L.E.; Stallman, B.K. [PSI Energy, Inc., Plainfield, IN (United States)] [PSI Energy, Inc., Plainfield, IN (United States)
1996-04-01T23:59:59.000Z
The increasing use of single phase rectifiers for electric power conversion in residential applications increases harmonic load on utility systems. Many papers have analyzed the effect of these loads on power quality and equipment loadability. However, there are two more critical concerns for harmonic loads served phase to neutral on multi-grounded wye systems. Triplen harmonics, particularly the third, add in the neutral and have little diversity between loads. The higher neutral currents may cause significant problems. Neutral to earth voltages will increase near the substations which could increase stray voltage complaints. The additional neutral current on three phase lines will elevate EMF levels especially in the fringe areas. This paper provides fundamental understanding of triplen harmonic influence on stray voltage and EMF related to multi-grounded wye electric distribution systems.
Harmonic Image Reconstruction Assisted by a Nonlinear Metmaterial Surface
Wang, Zhiyu
We experimentally demonstrate a microwave far-field image reconstruction modality with the transverse resolution exceeding the diffraction limit by using a single layer of highly nonlinear metamaterial. The harmonic fields ...
Nonlinear harmonic generation and devices in doubly resonant Kerr cavities
Hashemi, Hila
We describe a theoretical analysis of the nonlinear dynamics of third-harmonic generation (??3?) via Kerr (?(3)) nonlinearities in a resonant cavity with resonances at both ? and 3?. Such a doubly resonant cavity greatly ...
Investigation of plasma diagnostics using a dual frequency harmonic technique
Kim, Dong-Hwan [Department of Nanoscale Semiconductor Engineering, Hanyang University, Seoul (Korea, Republic of); Kim, Young-Do; Cho, Sung-Won; Kim, Yu-Sin; Chung, Chin-Wook, E-mail: joykang@hanyang.ac.kr [Department of Electrical Engineering, Hanyang University, Seoul (Korea, Republic of)
2014-09-07T23:59:59.000Z
Plasma diagnostic methods using harmonic currents analysis of electrostatic probes were experimentally investigated to understand the differences in their measurement of the plasma parameters. When dual frequency voltage (?{sub 1},?{sub 2}) was applied to a probe, various harmonic currents (?{sub 1},?2?{sub 1},?{sub 2},?2?{sub 2},?{sub 2}±?{sub 1},?{sub 2}±2?{sub 1}) were generated due to the non-linearity of the probe sheath. The electron temperature can be obtained from the ratio of the two harmonics of the probe currents. According to the combinations of the two harmonics, the sensitivities in the measurement of the electron temperature differed, and this results in a difference of the electron temperature. From experiments and simulation, it is shown that this difference is caused by the systematic and random noise.
Driven harmonic oscillator as a quantum simulator for open systems
Jyrki Piilo; Sabrina Maniscalco
2006-10-03T23:59:59.000Z
We show theoretically how a driven harmonic oscillator can be used as a quantum simulator for non-Markovian damped harmonic oscillator. In the general framework, the results demonstrate the possibility to use a closed system as a simulator for open quantum systems. The quantum simulator is based on sets of controlled drives of the closed harmonic oscillator with appropriately tailored electric field pulses. The non-Markovian dynamics of the damped harmonic oscillator is obtained by using the information about the spectral density of the open system when averaging over the drives of the closed oscillator. We consider single trapped ions as a specific physical implementation of the simulator, and we show how the simulator approach reveals new physical insight into the open system dynamics, e.g. the characteristic quantum mechanical non-Markovian oscillatory behavior of the energy of the damped oscillator, usually obtained by the non-Lindblad-type master equation, can have a simple semiclassical interpretation.
Analysis and Design of New Harmonic Mitigation Approaches
Aeloiza Matus, Eddy 1972-
2012-11-01T23:59:59.000Z
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...
ASYMPTOTIC DISTRIBUTION OF ESTIMATES FOR A TIME-VARYING PARAMETER IN A HARMONIC MODEL
Irizarry, Rafael A.
ASYMPTOTIC DISTRIBUTION OF ESTIMATES FOR A TIME-VARYING PARAMETER IN A HARMONIC MODEL WITH MULTIPLE harmonic regression models are useful for cases where harmonic parameters appear to be time-varying. Least, harmonic regression, signal processing, sound analysis, time-varying parameters, weighted least squares
Harmonic Content of Strain-induced Potential Modulation in Unidirectional Lateral Superlattices
Katsumoto, Shingo
Harmonic Content of Strain-induced Potential Modulation in Unidirectional Lateral Superlattices from a Â¼ 92 to 184 nm. Fourier analysis reveals the second (and the third) harmonics along of corresponding harmonics in the profile of the potential modulation. The harmonics manifest themselves in CO
Wind LCA Harmonization (Fact Sheet), NREL (National Renewable Energy Laboratory)
Not Available
2013-06-01T23:59:59.000Z
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.
Harmonic entanglement with second-order non-linearity
Nicolai B. Grosse; Warwick P. Bowen; Kirk McKenzie; Ping Koy Lam
2005-07-08T23:59:59.000Z
We investigate the second-order non-linear interaction as a means to generate entanglement between fields of differing wavelengths. And show that perfect entanglement can, in principle, be produced between the fundamental and second harmonic fields in these processes. Neither pure second harmonic generation, nor parametric oscillation optimally produce entanglement, such optimal entanglement is rather produced by an intermediate process. An experimental demonstration of these predictions should be imminently feasible.
Calculation of Massless Feynman Integrals using Harmonic Sums
Stefan Bekavac
2006-07-10T23:59:59.000Z
A method for the evaluation of the epsilon expansion of multi-loop massless Feynman integrals is introduced. This method is based on the Gegenbauer polynomial technique and the expansion of the Gamma function in terms of harmonic sums. Algorithms for the evaluation of nested and harmonic sums are used to reduce the expressions to get analytical or numerical results for the expansion coefficients. Methods to increase the precision of numerical results are discussed.
Fast optimal frictionless atom cooling in harmonic traps
Xi Chen; A. Ruschhaupt; S. Schmidt; A. del Campo; D. Guery-Odelin; J. G. Muga
2009-10-05T23:59:59.000Z
A method is proposed to cool down atoms in a harmonic trap without phase-space compression as in a perfectly slow adiabatic expansion, i.e., keeping the populations of the instantaneous initial and final levels invariant, but in a much shorter time. This may require that the harmonic trap becomes an expulsive parabolic potential in some time interval. The cooling times achieved are also shorter than previous minimal times using optimal-control bang-bang methods and real frequencies.
Harmonic generation of gravitational wave induced Alfven waves
Mats Forsberg; Gert Brodin
2007-11-26T23:59:59.000Z
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.
Bill Richardson Sworn in as Secretary of Energy | National Nuclear Security
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AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth (AOD)ProductssondeadjustsondeadjustAboutScienceCareers Apply for aCould Work asAdministration Bill
Bill Wilcox Â… The transformation and second birth of Oak Ridge, Part 1
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AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth (AOD)ProductssondeadjustsondeadjustAboutScienceCareers Apply for aCould Work asAdministration1 Bill
Bill Wilcox Â… The transformation and second birth of Oak Ridge, Part 2
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AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth (AOD)ProductssondeadjustsondeadjustAboutScienceCareers Apply for aCould Work asAdministration1 Bill2 As we
Bill Wilcox Â… The transformation and second birth of Oak Ridge, Part 3
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AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth (AOD)ProductssondeadjustsondeadjustAboutScienceCareers Apply for aCould Work asAdministration1 Bill2 As
Bill Wilcox Â… The transformation and second birth of Oak Ridge, Part 4
Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth (AOD)ProductssondeadjustsondeadjustAboutScienceCareers Apply for aCould Work asAdministration1 Bill2 As4
Linear harmonic analysis of Stirling engine thermodynamics
Chen, N.C.J.; Griffin, F.P.; West, C.D.
1984-08-01T23:59:59.000Z
The analysis involves linearization of the pressure waveform and represents each term in the conservation equations by a truncated Fourier series, including enthalpy flux discontinuity. Second-Law analysis is presented of four important loss mechanisms that result from adiabatic cylinders, transient heat transfer in semiadiabatic cylinders, pressure drop through the heat exchangers, and gas leakage from the compression space. The four loss mechanisms, all leading to efficiency reduction below the Carnot level, are characterized by irreversible thermodynamic processes that occur when heat is transferred across a finite temperature difference; when gases at two different temperatures are mixed; or when there is a mass flow through a pressure difference. The allocation of each individual loss mechanism is derived precisely in terms of entropy production but evaluated by use of pressure, temperature, and mass oscillations calculated from the linear harmonic approximation. When the theory is applied to an engine of Sunpower's RE-1000 dimensions, it reveals clearly that the adiabatic loss (due to temperature fluctuations in the cylinders) consists of two components: gas mixing and heat transfer across a temperature difference. The theory further shows that the adiabatic effect is more important than the transient heat transfer loss if the gas-to-cylinder heat transfer rate is small (i.e., nearly adiabatic conditions); the reverse is true for intermediate heat transfer rates; and both losses vanish at very high heat transfer rates. In addition, entropy analyses of pressure drop and mass leakage for isothermal cylinders shed some light on coupling between the different individual loss mechanisms.
Kung, Andy
Numerical Analysis of Fifth-Harmonic Conversion of Low-Power Pulsed Nd:YAG Laser with Resonance of Second Harmonic Lien-Bee CHANG1Ã? , S. C. WANG1 and A. H. KUNG1;2 1 Institute of Electro March 13, 2003) A model for the fifth-harmonic generation of pulsed IR lasers involving an external ring
Patterson, William P.
Curriculum Vitae Professional http://geochemistry.usask.ca/bill/Curriculum%20Vitae%2010-24.htm[2/11/2009 7:14:51 PM] CURRICULUM VITAE- last updated 12/14/07 Dr. WILLIAM P. PATTERSON Professor and Director, Missouri Highway and Trans. Dept., 1986-89. #12;Curriculum Vitae Professional http://geochemistry.usask.ca/bill/Curriculum
Han, Richard Y.
SensorFlock: A Mobile System of Networked Micro-Air Vehicles Ahmad Bilal Hasan, Bill Pisano, Saroch System of Networked Micro-Air Vehicles 1 Ahmad Bilal Hasan, 2 Bill Pisano, 1 Saroch Panichsakul,2 Pete of our MAV airplane, its avionics, semi- autonomous flight control software, launch system, flock control
Dynamics of harmonically-confined systems: Some rigorous results
Wu, Zhigang, E-mail: zwu@physics.queensu.ca; Zaremba, Eugene, E-mail: zaremba@sparky.phy.queensu.ca
2014-03-15T23:59:59.000Z
In this paper we consider the dynamics of harmonically-confined atomic gases. We present various general results which are independent of particle statistics, interatomic interactions and dimensionality. Of particular interest is the response of the system to external perturbations which can be either static or dynamic in nature. We prove an extended Harmonic Potential Theorem which is useful in determining the damping of the centre of mass motion when the system is prepared initially in a highly nonequilibrium state. We also study the response of the gas to a dynamic external potential whose position is made to oscillate sinusoidally in a given direction. We show in this case that either the energy absorption rate or the centre of mass dynamics can serve as a probe of the optical conductivity of the system. -- Highlights: •We derive various rigorous results on the dynamics of harmonically-confined atomic gases. •We derive an extension of the Harmonic Potential Theorem. •We demonstrate the link between the energy absorption rate in a harmonically-confined system and the optical conductivity.
Higher harmonics increase LISA's mass reach for supermassive black holes
K. G. Arun; Bala R. Iyer; B. S. Sathyaprakash; Siddhartha Sinha
2007-06-05T23:59:59.000Z
Current expectations on the signal to noise ratios and masses of supermassive black holes which the Laser Interferometer Space Antenna (LISA) can observe are based on using in matched filtering only the dominant harmonic of the inspiral waveform at twice the orbital frequency. Other harmonics will affect the signal-to-noise ratio of systems currently believed to be observable by LISA. More significantly, inclusion of other harmonics in our matched filters would mean that more massive systems that were previously thought to be {\\it not} visible in LISA should be detectable with reasonable SNRs. Our estimates show that we should be able to significantly increase the mass reach of LISA and observe the more commonly occurring supermassive black holes of masses $\\sim 10^8M_\\odot.$ More specifically, with the inclusion of all known harmonics LISA will be able to observe even supermassive black hole coalescences with total mass $\\sim 10^8 M_\\odot (10^9M_\\odot)$ (and mass-ratio 0.1) for a low frequency cut-off of $10^{-4}{\\rm Hz}$ $(10^{-5}{\\rm Hz})$ with an SNR up to $\\sim 60$ $(\\sim 30)$ at a distance of 3 Gpc. This is important from the astrophysical viewpoint since observational evidence for the existence of black holes in this mass range is quite strong and binaries containing such supermassive black holes will be inaccessible to LISA if one uses as detection templates only the dominant harmonic.
Harmonic entanglement in a degenerate parametric down conversion
Sintayehu Tesfa
2007-07-25T23:59:59.000Z
We study the harmonic entanglement and squeezing in a two-mode radiation produced in a degenerate parametric down conversion process coupled to a two-mode vacuum reservoir employing the linearization procedure. It is found that there is a quadrature entanglement between the harmonically related fundamental and second-harmonic modes and the superimposed radiation exhibits a significant two-mode squeezing. The entanglement exits even when there is no two-mode squeezing, since the correlation leading to these phenomena are essentially different. In addition, the more the external coherent light is down converted, the more stronger the entanglement and mean photon number of the two-mode radiation would be which is not generally true for squeezing.
Unitary approach to the quantum forced harmonic oscillator
D. Velasco-Martinez; V. G. Ibarra-Sierra; J. C. Sandoval-Santana; J. L. Cardoso; A. Kunold
2014-08-31T23:59:59.000Z
In this paper we introduce an alternative approach to studying the evolution of a quantum harmonic oscillator subject to an arbitrary time dependent force. With the purpose of finding the evolution operator, certain unitary transformations are applied successively to Schr\\"odinger's equation reducing it to its simplest form. Therefore, instead of solving the original Schr\\"odinger's partial differential equation in time and space the problem is replaced by a system of ordinary differential equations. From the obtained evolution operator we workout the propagator. Even though we illustrate the use of unitary transformations on the solution of a forced harmonic oscillator, the method presented here might be used to solve more complex systems. The present work addresses many aspects regarding unitary transformations and the dynamics of a forced quantum harmonic oscillator that should be useful for students and tutors of the quantum mechanics courses at the senior undergraduate and graduate level.
Developing Alternative Markets for peach cull fruit -- A new Michigan State University GREEEN project - Bill Shane and Tom Zabadal, Michigan State University Michigan's fresh market peach crop Michigan peaches to make wine and brandy but the high costs of removing pits by hand have hampered this use
Energy and Resources Group, University of California, Berkeley; Darghouth, Naim R.; Barbose, Galen; Wiser, Ryan
2011-06-01T23:59:59.000Z
Net metering has become a widespread mechanism in the U.S. for supporting customer adoption of distributed photovoltaics (PV), but has faced challenges as PV installations grow to a larger share of generation in a number of states. This paper examines the value of the bill savings that customers receive under net metering, and the associated role of retail rate design, based on a sample of approximately two hundred residential customers of California's two largest electric utilities. We find that the bill savings per kWh of PV electricity generated varies by more than a factor of four across the customers in the sample, which is largely attributable to the inclining block structure of the utilities' residential retail rates. We also compare the bill savings under net metering to that received under three potential alternative compensation mechanisms, based on California's Market Price Referent (MPR). We find that net metering provides significantly greater bill savings than a full MPR-based feed-in tariff, but only modestly greater savings than alternative mechanisms under which hourly or monthly net excess generation is compensated at the MPR rate.
and Rhiannon Blaauw August 11, 2012 at the Moon. Victoria_C.: Because we pass through the cloud every year, does the amount of meteors decline. Victoria_C.: Why do meteors fall more on one night than different nights? Bill: On certain nights
Application for theAnn and Bill Fisher Graduate Scholarship 1. Your name Mr. Miss, Ms., Mrs.
Rock, Chris
Application for theAnn and Bill Fisher Graduate Scholarship 1. Your name Mr. Miss, Ms., Mrs): _____________________________________________ _____________________________________________ 6. Date of birth: (month, day, year): Page 1 of 3 Eligibility: You are eligible for this scholarship; and You are proficient in at least two languages; and You are able to demonstrate 1) outstanding academic
Application for theAnn and Bill Fisher Graduate Scholarship 1. Your name Mr. Miss, Ms., Mrs.
Rock, Chris
Application for theAnn and Bill Fisher Graduate Scholarship 1. Your name Mr. Miss, Ms., Mrs): _____________________________________________ _____________________________________________ 5. Date of birth: (month, day, year): Page 1 of 3 Eligibility: You are eligible for this scholarship, and You are proficient in at least two languages, and You are able to demonstrate 1)outstanding academic
Zender, Charles
model simulations at the newly established Earth System Modeling Facility (www System Modeling at UC Irvine. Posted March 1, 2004. The Department of Earth System Science (ESS) at UCHelp save the Earth (and pay your bills)... Scientific Programmer Needed! Specialist in Earth
Mohri, Mehryar
NYU Electronic Suite for eBilling + ePayment For additional information, visit the Electronic Suite of options. This will link you to the secure eSuite website. If parents want to make an electronic check-check payment, parents must be invited by the student, to create an eSuite account. NYU's Electronic Suite
Senate Bill No. 34 An act to add Sections 2069, 2099, and 2099.5 to the Fish and Game
Senate Bill No. 34 CHAPTER 9 An act to add Sections 2069, 2099, and 2099.5 to the Fish and Game Species Act (CESA) requires the Fish and Game Commission to establish a list of endangered species and a list of threatened species and requires the Department of Fish and Game to recommend
Rambaut, Andrew
to long-term workforce planning? Does the draft Bill set out HEE's powers clearly, along with its of education and training of the healthcare workforce (clause 54(1)). Research duty 3. We consider the duty and modern workforce it is essential that HEE oversees a system that provides the education and training
Cascaded Cerenkov third-harmonic generation in random quadratic media
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
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.
Propagation of nonlinearly generated harmonic spin waves in microscopic stripes
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
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.
High-order harmonic generation in a capillary discharge
Rocca, Jorge J.; Kapteyn, Henry C.; Mumane, Margaret M.; Gaudiosi, David; Grisham, Michael E.; Popmintchev, Tenio V.; Reagan, Brendan A.
2010-06-01T23:59:59.000Z
A pre-ionized medium created by a capillary discharge results in more efficient use of laser energy in high-order harmonic generation (HHG) from ions. It extends the cutoff photon energy, and reduces the distortion of the laser pulse as it propagates down the waveguide. The observed enhancements result from a combination of reduced ionization energy loss and reduced ionization-induced defocusing of the driving laser as well as waveguiding of the driving laser pulse. The discharge plasma also provides a means to spectrally tune the harmonics by tailoring the initial level of ionization of the medium.
Harmonic mean, the Gamma factor and Speed of Light
Chandru Iyer
2008-11-17T23:59:59.000Z
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
On the harmonic oscillator properties in a twisted Moyal plane
Ezinvi Baloitcha; Mahouton Norbert Hounkonnou; Dine Ousmane Samary
2012-03-25T23:59:59.000Z
This work prolongs, using an operator method, the investigations started in our recent paper J. Math. Phys. 51., 102108 on the spectrum and states of the harmonic oscillator on twisted Moyal plane, where rather a Moyal-star-algebraic approach was used. The physical spectrum and states of the harmonic oscillator on twisted Moyal space, obtained here by solving the corresponding differential equation, are similar to those of the ordinary Moyal space, with different parameters. This fortunately contrasts with the previous study which produced unexpected results, i.e. infinitely degenerate states with energies depending on the coordinate functions.
Harmonic analysis on a galois field and its subfields
A. Vourdas
2006-10-17T23:59:59.000Z
Complex functions $\\chi (m)$ where $m$ belongs to a Galois field $GF(p^ \\ell)$, are considered. Fourier transforms, displacements in the $GF(p^ \\ell) \\times GF(p^ \\ell)$ phase space and symplectic $Sp(2,GF(p^ \\ell))$ transforms of these functions are studied. It is shown that the formalism inherits many features from the theory of Galois fields. For example, Frobenius transformations are defined which leave fixed all functions $h(n)$ where $n$ belongs to a subfield $GF(p^ d)$ of the $GF(p^ \\ell)$. The relationship between harmonic analysis (or quantum mechanics) on $GF(p^ \\ell)$ and harmonic analysis on its subfields, is studied.
Constraint damping in the Z4 formulation and harmonic gauge
Carsten Gundlach; Jose M. Martin-Garcia; Gioel Calabrese; Ian Hinder
2005-07-14T23:59:59.000Z
We show that by adding suitable lower-order terms to the Z4 formulation of the Einstein equations, all constraint violations except constant modes are damped. This makes the Z4 formulation a particularly simple example of a lambda-system as suggested by Brodbeck et al. We also show that the Einstein equations in harmonic coordinates can be obtained from the Z4 formulation by a change of variables that leaves the implied constraint evolution system unchanged. Therefore the same method can be used to damp all constraints in the Einstein equations in harmonic gauge.
Harmonic measurements made on the upgraded New Zealand inter-island HVdc transmission system
Miller, A.J.V.; Dewe, M.B. (Univ. of Canterbury, Christchurch (New Zealand))
1994-07-01T23:59:59.000Z
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.
Loganathan, Muthukumaran; Bristow, Douglas A., E-mail: dbristow@mst.edu [Department of Mechanical and Aerospace Engineering, Missouri University of Science and Technology, Rolla, Missouri 65401 (United States)
2014-04-15T23:59:59.000Z
This paper presents a method and cantilever design for improving the mechanical measurement sensitivity in the atomic force microscopy (AFM) tapping mode. The method uses two harmonics in the drive signal to generate a bi-harmonic tapping trajectory. Mathematical analysis demonstrates that the wide-valley bi-harmonic tapping trajectory is as much as 70% more sensitive to changes in the sample topography than the standard single-harmonic trajectory typically used. Although standard AFM cantilevers can be driven in the bi-harmonic tapping trajectory, they require large forcing at the second harmonic. A design is presented for a bi-harmonic cantilever that has a second resonant mode at twice its first resonant mode, thereby capable of generating bi-harmonic trajectories with small forcing signals. Bi-harmonic cantilevers are fabricated by milling a small cantilever on the interior of a standard cantilever probe using a focused ion beam. Bi-harmonic drive signals are derived for standard cantilevers and bi-harmonic cantilevers. Experimental results demonstrate better than 30% improvement in measurement sensitivity using the bi-harmonic cantilever. Images obtained through bi-harmonic tapping exhibit improved sharpness and surface tracking, especially at high scan speeds and low force fields.
Berning, Torsten
1 Active Harmonic Filtering Using Current Controlled Grid- Connected DG Units with Closed converters to actively compensate harmonics, this paper proposes an enhanced current control approach, which seamlessly integrates system harmonic mitigation capabilities with the primary DG power generation function
Darghouth, Naim; Barbose, Galen; Wiser, Ryan
2010-03-30T23:59:59.000Z
Net metering has become a widespread policy in the U.S. for supporting distributed photovoltaics (PV) adoption. Though specific design details vary, net metering allows customers with PV to reduce their electric bills by offsetting their consumption with PV generation, independent of the timing of the generation relative to consumption - in effect, compensating the PV generation at retail electricity rates (Rose et al. 2009). While net metering has played an important role in jump-starting the residential PV market in the U.S., challenges to net metering policies have emerged in a number of states and contexts, and alternative compensation methods are under consideration. Moreover, one inherent feature of net metering is that the value of the utility bill savings it provides to customers with PV depends heavily on the structure of the underlying retail electricity rate, as well as on the characteristics of the customer and PV system. Consequently, the value of net metering - and the impact of moving to alternative compensation mechanisms - can vary substantially from one customer to the next. For these reasons, it is important for policymakers and others that seek to support the development of distributed PV to understand both how the bill savings varies under net metering, and how the bill savings under net metering compares to other possible compensation mechanisms. To advance this understanding, we analyze the bill savings from PV for residential customers of California's two largest electric utilities, Pacific Gas and Electric (PG&E) and Southern California Edison (SCE). The analysis is based on hourly load data from a sample of 215 residential customers located in the service territories of the two utilities, matched with simulated hourly PV production for the same time period based on data from the nearest of 73 weather stations in the state.
Berg, R.R. (Texas A M Univ., College Station, TX (United States)); DeMis, W.D. (Marathon Oil Co., Houston, TX (United States)); Mitsdarffer, A.R. (Dupont Environmental Remediation Services, Houston, TX (United States))
1994-04-01T23:59:59.000Z
Mission Canyon oil production on the south flank of the Williston basin provides an example of an area in the mature stage of exploration that shows significant hydrodynamic effects on oil accumulations related to stratigraphic traps. The effects are illustrated by the Billings Nose fields and the Elkhorn Ranch field. The reservoirs have low hydraulic gradients of about 2 m/km (10 ft/mi), tilted oil-water contacts with gradients of 5 m/km (25 ft/mi), and variable formation-water salinities that range from brackish to highly saline. Oil accumulations in some zones are displayed off structure and downdip to the northeast, parallel to porosity pinch-outs. Other zones are pure hydrodynamic closure. Future success in exploration and development in the play will depend on recognizing the hydrodynamic effects and predicting oil displacement. 34 refs., 15 figs., 1 tab.
Wideband phased array antennas and compact, harmonic-suppressed microstrip filters
Tu, Wen-Hua
2009-05-15T23:59:59.000Z
. 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...
Fault Detection and Diagnostics for Non-Intrusive Monitoring Using Motor Harmonics
Orji, Uzoma A.
Harmonic analysis of motor current has been used to track the speed of motors for sensorless control. Algorithms exist that track the speed of a motor given a dedicated stator current measurement, for example. Harmonic ...
Paris-Sud XI, Université de
BLIND HARMONIC ADAPTIVE DECOMPOSITION APPLIED TO SUPERVISED SOURCE SEPARATION Benoit Fuentes through an algorithm called Blind Harmonic Adaptive Decomposition (BHAD). This algorithm provides [1]. However, performing this task in a completely blind way remains challenging, basically due
Harmonic analysis of climatological sea surface salinity Tim P. Boyer and Sydney Levitus
Harmonic analysis of climatological sea surface salinity Tim P. Boyer and Sydney Levitus Ocean: Boyer, T. P., and S. Levitus, Harmonic analysis of climatological sea surface salinity, J. Geophys. Res
RDI's Wisdom Way Solar Village Final Report: Includes Utility Bill Analysis of Occupied Homes
Robb Aldrich, Steven Winter Associates
2011-07-01T23:59:59.000Z
In 2010, Rural Development, Inc. (RDI) completed construction of Wisdom Way Solar Village (WWSV), a community of ten duplexes (20 homes) in Greenfield, MA. RDI was committed to very low energy use from the beginning of the design process throughout construction. Key features include: 1. Careful site plan so that all homes have solar access (for active and passive); 2. Cellulose insulation providing R-40 walls, R-50 ceiling, and R-40 floors; 3. Triple-pane windows; 4. Airtight construction (~0.1 CFM50/ft2 enclosure area); 5. Solar water heating systems with tankless, gas, auxiliary heaters; 6. PV systems (2.8 or 3.4kWSTC); 7. 2-4 bedrooms, 1,100-1,700 ft2. The design heating loads in the homes were so small that each home is heated with a single, sealed-combustion, natural gas room heater. The cost savings from the simple HVAC systems made possible the tremendous investments in the homes' envelopes. The Consortium for Advanced Residential Buildings (CARB) monitored temperatures and comfort in several homes during the winter of 2009-2010. In the Spring of 2011, CARB obtained utility bill information from 13 occupied homes. Because of efficient lights, appliances, and conscientious home occupants, the energy generated by the solar electric systems exceeded the electric energy used in most homes. Most homes, in fact, had a net credit from the electric utility over the course of a year. On the natural gas side, total gas costs averaged $377 per year (for heating, water heating, cooking, and clothes drying). Total energy costs were even less - $337 per year, including all utility fees. The highest annual energy bill for any home evaluated was $458; the lowest was $171.
Web-assisted tunneling in the kicked harmonic oscillator
André R. R. Carvalho; Andreas Buchleitner
2004-09-20T23:59:59.000Z
We show that heating of harmonically trapped ions by periodic delta kicks is dramatically enhanced at isolated values of the Lamb-Dicke parameter. At these values, quasienergy eigenstates localized on island structures undergo avoided crossings with extended web-states.
Born-Oppenheimer approximation for a harmonic molecule
Francisco M. Fernandez
2008-10-13T23:59:59.000Z
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.
ENERGY DIFFUSION IN HARMONIC SYSTEM WITH CONSERVATIVE NOISE
Paris-Sud XI, UniversitÃ© de
systems or lattice dimension d 3, where the thermal diffusivity is finite. 1. Introduction Lattice the evolution of the energy and identify the thermal diffusivity. In the harmonic chain with noise this agrees to what it is expected for deterministic anharmonic dynamics. In this article we consider the same
Harmonic inversion analysis of exceptional points in resonance spectra
Jacob Fuchs; Jörg Main; Holger Cartarius; Günter Wunner
2014-02-17T23:59:59.000Z
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.
SPEECH ENHANCEMENT USING HARMONIC REGENERATION Cyril Plapous 1
Paris-Sud XI, UniversitÃ© de
SPEECH ENHANCEMENT USING HARMONIC REGENERATION Cyril Plapous 1 , Claude Marro 1 , Pascal Scalart 2 in enhanced speech because of the non reliability of estimators for small signal- to-noise ratios. We propose The problem of enhancing speech degraded by additive noise, when only the noisy speech is available, has been
-okfl ^ ORNL/CON-172 Linear Harmonic Analysis of Free-
Oak Ridge National Laboratory
Stirling Engines N. C. J. Chen F. P. Griffin OPERATED BY MARTIN MARIETTA ENERGY SYSTEMS, INC. #12;ORNL/CON-172 Engineering Technology Division* LINEAR HARMONIC ANALYSIS OF FREE-PISTON STIRLING/dynamic problem that is associated with a free-piston Stirling engine (FPSE). The governing equations
Noncommutative Harmonic Oscillator at Finite Temperature: A Path Integral Approach
A. Jahan
2012-08-01T23:59:59.000Z
We use the path integral approach to a two-dimensional noncommutative harmonic oscillator to derive the partition function of the system at finite temperature. It is shown that the result based on the Lagrangian formulation of the problem, coincides with the Hamiltonian derivation of the partition function.
On the harmonic oscillator realisation of q-oscillators
D. Gangopadhyay; A. P. Isaev
2007-01-05T23:59:59.000Z
The general version of the bosonic harmonic oscillator realisation of bosonic q-oscillators is given. It is shown that the currently known realisation is a special case of our general solution. The investigation has been performed at the Laboratory of theoretical Physics,JINR.
Generalized harmonic spatial coordinates and hyperbolic shift conditions
Miguel Alcubierre; Alejandro Corichi; José A. González; Darío Núñez; Bernd Reimann; Marcelo Salgado
2005-10-24T23:59:59.000Z
We propose a generalization of the condition for harmonic spatial coordinates analogous to the generalization of the harmonic time slices introduced by Bona et al., and closely related to dynamic shift conditions recently proposed by Lindblom and Scheel, and Bona and Palenzuela. These generalized harmonic spatial coordinates imply a condition for the shift vector that has the form of an evolution equation for the shift components. We find that in order to decouple the slicing condition from the evolution equation for the shift it is necessary to use a rescaled shift vector. The initial form of the generalized harmonic shift condition is not spatially covariant, but we propose a simple way to make it fully covariant so that it can be used in coordinate systems other than Cartesian. We also analyze the effect of the shift condition proposed here on the hyperbolicity of the evolution equations of general relativity in 1+1 dimensions and 3+1 spherical symmetry, and study the possible development of blow-ups. Finally, we perform a series of numerical experiments to illustrate the behavior of this shift condition.
Strong Second Harmonic Generation from the Tantalum Thioarsenates...
Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)
Strong Second Harmonic Generation from the Tantalum Thioarsenates A3Ta2AsS11 (A K and Rb) Home Author: T.K. Bera, J.I. Jang, J.B. Ketterson, M.G. Kanatzidis Year: 2009 Abstract:...
Linear harmonic oscillator in spaces with degenerate metrics
N. A. Gromov
2006-03-02T23:59:59.000Z
With the help of contraction method we study the harmonic oscillator in spaces with degenerate metrics, namely, on Galilei plane and in the flat 3D Cayley-Klein spaces $R_3(j_2,j_3).$ It is shown that the inner degrees of freedom are appeared which physical dimensions are different from the dimension of the space.
Harmonic Superfields in N=4 Supersymmetric Quantum Mechanics
Evgeny A. Ivanov
2011-02-11T23:59:59.000Z
This is a brief survey of applications of the harmonic superspace methods to the models of N=4 supersymmetric quantum mechanics (SQM). The main focus is on a recent progress in constructing SQM models with couplings to the background non-Abelian gauge fields. Besides reviewing and systemizing the relevant results, we present some new examples and make clarifying comments.
Harmonic analysis of the Ha velocity field of NGC 4254
Laurent Chemin; Olivier Hernandez; Chantal Balkowski; Claude Carignan; Philippe Amram
2005-12-20T23:59:59.000Z
The ionized gas kinematics of the Virgo Cluster galaxy NGC 4254 (Messier 99) is analyzed by an harmonic decomposition of the velocity field into Fourier coefficients. The aims of this study are to measure the kinematical asymmetries of Virgo cluster galaxies and to connect them to the environment. The analysis reveals significant $m=1,2,4$ terms which origins are discussed.
Analytic and algorithmic aspects of generalized harmonic sums and polylogarithms
Ablinger, Jakob; Schneider, Carsten [Research Institute for Symbolic Computation (RISC), Johannes Kepler University, Altenbergerstraße 69, A-4040, Linz (Austria)] [Research Institute for Symbolic Computation (RISC), Johannes Kepler University, Altenbergerstraße 69, A-4040, Linz (Austria); Blümlein, Johannes [Deutsches Elektronen–Synchrotron, DESY, Platanenallee 6, D-15738 Zeuthen (Germany)] [Deutsches Elektronen–Synchrotron, DESY, Platanenallee 6, D-15738 Zeuthen (Germany)
2013-08-15T23:59:59.000Z
In recent three-loop calculations of massive Feynman integrals within Quantum Chromodynamics (QCD) and, e.g., in recent combinatorial problems the so-called generalized harmonic sums (in short S-sums) arise. They are characterized by rational (or real) numerator weights also different from ±1. In this article we explore the algorithmic and analytic properties of these sums systematically. We work out the Mellin and inverse Mellin transform which connects the sums under consideration with the associated Poincaré iterated integrals, also called generalized harmonic polylogarithms. In this regard, we obtain explicit analytic continuations by means of asymptotic expansions of the S-sums which started to occur frequently in current QCD calculations. In addition, we derive algebraic and structural relations, like differentiation with respect to the external summation index and different multi-argument relations, for the compactification of S-sum expressions. Finally, we calculate algebraic relations for infinite S-sums, or equivalently for generalized harmonic polylogarithms evaluated at special values. The corresponding algorithms and relations are encoded in the computer algebra package HarmonicSums.
Real-Time Selective Harmonic Minimization in Cascaded Multilevel Inverters
Tolbert, Leon M.
time but the output fundamental voltage will stay constant and the harmonic will still meet capability of generalizing solutions. What this means is that, if the correct range of data are used sources along with its operation as in a solar panel. This means that during a day of operation, the solar
Generation of harmonics and supercontinuum in nematic liquid crystals
Nyushkov, B N; Trashkeev, S I; Klementyev, Vasilii M; Pivtsov, V S; Kobtsev, Sergey M
2013-02-28T23:59:59.000Z
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)
Cover image High-harmonic generation could be
Loss, Daniel
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
Classical thermodynamics of particles in harmonic traps Martin Ligarea
Ligare, Martin
, and the heat capacities. I also consider cyclic thermodynamic processes in a harmonically confined gas. Â© 2010 of state for a gas of N noninteract- ing particles in a rigid volume V is derived in almost every text and pressure vary with position within such traps, and the volume of the gas is not well defined
Improved gauge driver for the generalized harmonic Einstein system Lee Lindblom and Bela Szilagyi
Lindblom, Lee
Improved gauge driver for the generalized harmonic Einstein system Lee Lindblom and BeÂ´la SzilaÂ´gyi
A three-phase converter model for harmonic analysis of HVDC systems
Xu, W.; Drakos, J.E.; Mansour, Y.; Chang, A. (B.C. Hydro, Burnaby, British Columbia (Canada))
1994-07-01T23:59:59.000Z
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.
Wave kernels for the Dirac, Euler operators and the harmonic oscillator
Mohameden, Ahmedou Yahya Ould, E-mail: ahmeddou2011@yahoo.fr; Moustapha, Mohamed Vall Ould, E-mail: khames@univ-nkc.mr [Université des Sciences, de Technologie et de la Medécine (USTM) Faculté des Sciences et Techniques. Département de Mathématiques et Informatique, Unité de Recherche: Analyse, EDP et Modélisation: (AEDPM) B.P: 5026, Nouakchott-Mauritanie (United States)
2014-03-15T23:59:59.000Z
Explicit solutions for the wave equations associated to the Dirac, Euler operators and the harmonic oscillator are given.
Enhanced Harmonic Up-Conversion Using a Hybrid HGHG-EEHG Scheme
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
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).
The package HarmonicSums: Computer Algebra and Analytic aspects of Nested Sums
Jakob Ablinger
2014-07-23T23:59:59.000Z
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.
Aalborg Universitet Frequency Adaptive Selective Harmonic Control for Grid-Connected Inverters
Berning, Torsten
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
Second-and third-harmonic generation with vector Gaussian beams
Teich, Malvin C.
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
Source levels and harmonic content of whistles in white-beaked dolphins (Lagenorhynchus albirostris)
Source levels and harmonic content of whistles in white-beaked dolphins (Lagenorhynchus albirostris of the 43 whistles contained an unequal number of harmonics recorded at the three hydrophones judging from of the fundamen- tal frequency is a harmonic Yost, 2000 . Rasmussen
Koch, Christiane
and harmonic baths David Gelmana) Fritz Haber Research Center for Molecular Dynamics, Hebrew University to a spin bath and to a harmonic bath. Converged results are obtained for the spin bath by the surrogate. The results are compared to calculations that include a finite number of harmonic modes carried out by using
HARMONIC CASCADE FEL DESIGNS FOR LUX G. Penn, M. Reinsch, J. Wurtele
Wurtele, Jonathan
HARMONIC CASCADE FEL DESIGNS FOR LUX G. Penn, M. Reinsch, J. Wurtele , J.N. Corlett, W.M. Fawley, A stages of higher harmonic generation, seeded by a 200Â250 nm laser of similar duration. This laser mod then produces ra- diation at a higher harmonic after entering a second, differ- ently tuned undulator. Repeated
IEEE TRANSACTIONSON PLASMA SCIENCE,VOL. 21, NO. 1, FEBRUARY 1993 Phase-Matched Third Harmonic
IEEE TRANSACTIONSON PLASMA SCIENCE,VOL. 21, NO. 1, FEBRUARY 1993 ~ 105 Phase-Matched Third Harmonic Generation in a Plasma J. M. Rax and N. J. Fisch Abstract-Relativistic third harmonic generationin a plasma is investigated. The growth of a third harmonic wave is limited by the difference between the phase velocity
Optical Third-Harmonic Generation in Graphene Sung-Young Hong,1
Hone, James
Optical Third-Harmonic Generation in Graphene Sung-Young Hong,1 Jerry I. Dadap,2,* Nicholas Petrone York 10027, USA (Received 8 April 2013; published 10 June 2013) We report strong third-harmonic verified. In addition, our polarization- and azimuthal-rotation-dependent third-harmonic
Research Report Effects of attention on the neural processing of harmonic syntax
Research Report Effects of attention on the neural processing of harmonic syntax in Western music) were recorded. The five-chord progressions included 61% harmonically expected cadences (IÂI6 ÂIVÂVÂI), 26% harmonically unexpected cadences (IÂI6 ÂIVÂVÂN6 ), and 13% with one of the five chords having
Levin, Vadim
harmonic1 decomposition of Receiver Functions: an application2 to Northern Apennines, Italy.3 I. Bianchi J oped, which combines both migration and harmonic decomposition of the15 receiver function data on a crucial depth range17 (20-70 km) where mantle wedge develops, harmonic decomposition of a re-18 cevier
3D Harmonic Mapping and Tetrahedral Meshing of Brain Imaging Data
Thompson, Paul
3D Harmonic Mapping and Tetrahedral Meshing of Brain Imaging Data Yalin Wang1 , Xianfeng Gu2 , Paul algorithm finds a harmonic map from a 3-manifold to a 3D solid sphere and the second is a novel sphere of magnetic resonance images (MRI). A heat flow method is used to solve the volumetric harmonic mapping
High harmonic generation in relativistic laserplasma interactiona... S. Banerjee,b)
Umstadter, Donald
High harmonic generation in relativistic laserÂplasma interactiona... S. Banerjee,b) A. R of Michigan, Ann Arbor, Michigan 48109 Received 2 November 2001; accepted 26 February 2002 High harmonics, in addition to the conventional atomic harmonics from bound electrons there is significant contribution
Harmonic Modelling of Thyristor Bridges using a Simplified Time Domain Method
Lehn, Peter W.
1 Harmonic Modelling of Thyristor Bridges using a Simplified Time Domain Method P. W. Lehn, Senior form solution for the harmonic injection of the converter is developed. For the more general case model module takes as input the ac voltage harmonics at the point of common coupling and outputs
Giant higher harmonic generation in mesoscopic metal wires and rings interrupted by tunnel junctions
van Oudenaarden, Alexander
Giant higher harmonic generation in mesoscopic metal wires and rings interrupted by tunnel 5046, 2600 GA Delft, The Netherlands Received 19 December 1997 Higher harmonic generation in mesoscopic is biased with a sinusoidal varying current, we observe giant higher harmon- ics in the conductance
Harmonic Analysis of a Three-Phase Diode Bridge Rectifier based on Sampled-Data Model
Lehn, Peter W.
Harmonic Analysis of a Three-Phase Diode Bridge Rectifier based on Sampled-Data Model K. L. Lian. As demonstrated in the paper, the proposed method analytically evaluates harmonics, and obtains exact switching is to incorporate it into a harmonic power flow program to yield improved accuracy. Index Terms-- Diode Bridge
Nonlinear harmonic generation and devices in doubly resonant Kerr cavities Hila Hashemi,1
Nonlinear harmonic generation and devices in doubly resonant Kerr cavities Hila Hashemi,1 Alejandro of the nonlinear dynamics of third-harmonic generation 3 via Kerr 3 nonlinearities in a resonant cavity harmonic generation, by a factor of V/Q2 , where V is the modal volume and Q is the lifetime, and can even
1 1 A Harmonic Approach for Calculating Daily Temperature Normals Constrained by2 Homogenized a constrained harmonic technique that forces the daily30 temperature normals to be consistent with the monthly, or harmonic even though the annual march of temperatures for some locations can be highly asymmetric. Here, we
Harmonic phase-dispersion microscope with a MachZehnder interferometer
Fang-Yen, Christopher
Harmonic phase-dispersion microscope with a MachÂZehnder interferometer Andrew Ahn, Changhuei Yang S. Feld Harmonic phase-dispersion microscopy (PDM) is a new imaging technique in which contrast is provided by differences in refractive index at two harmonically related wavelengths. We report a new
Very-high-order harmonic generation from Ar atoms and Ar+ ions in superintense pulsed laser
Chu, Shih-I
Very-high-order harmonic generation from Ar atoms and Ar+ ions in superintense pulsed laser fields-high-order harmonic generation HHG from Ar atoms and Ar+ ions by means of the self-interaction-free time-order harmonic generation HHG is one of the most rapidly developing topics in the field of laser-atom molecule
Second and Fourth Harmonic Frequencies in Electric Field-Induced Liquid Crystal Reorientations
Wu, Shin-Tson
Second and Fourth Harmonic Frequencies in Electric Field-Induced Liquid Crystal Reorientations of Central Florida, Orlando, Florida, USA The second and fourth harmonics of low frequency electric field-optical modulation; liquid crystal; second and fourth harmonics 1. INTRODUCTION Nematic liquid crystal (LC) has been
High-harmonic generation in plasmas from relativistic laser-electron scattering
Umstadter, Donald
High-harmonic generation in plasmas from relativistic laser-electron scattering S. Banerjee, A. R Results are presented on the generation of high harmonics through the scattering of relativistic electrons to be the emission of even- order harmonics, linear dependence on the electron density, significant amount
Ultrafast Third Harmonic Micro-spectroscopy Reveals a Two-Photon Resonance in Human Hemoglobin
Kleinfeld, David
Ultrafast Third Harmonic Micro-spectroscopy Reveals a Two-Photon Resonance in Human Hemoglobin G Golden, CO 80401 Abstract The recently developed technique of ultrafast third harmonic generation (THG states in physiological solutions of human hemoglobin. Keywords: Third Harmonic Generation, Micro
Geist, Dennis
Search for Harmonic tremor in the Galapagos Jonathan M. Lees, University of North Carolina, Chapel Hill Harmonic volcano tremor can provide details of conduit physics during magma flow and volcano.71.2 Hz. Harmonic tremor has not been reported on Galapagos volcanoes, possibly because seismic
Haberl, J. S.; Culp, C.; Yazdani, B.; Fitzpatrick, T.; Turner, W. D.
2002-01-01T23:59:59.000Z
This is the first annual report by the Energy Systems Laboratory, which covers the Laboratory's efforts to support Senate Bill 5. In this report the accomplishments and progress to date are presented, along with recommendations, issues encountered...
McKenna, Cyd
2008-01-01T23:59:59.000Z
Servicemen's Readjustment Act of 1944, commonly known as the GI Bill, was a transformative piece of legislation signed by President Roosevelt intended to help WWII Veterans transition successfully from soldier to citizen. ...
Study on higher harmonic suppression using edge filter and polished Si wafer
Gupta, R. K., E-mail: rkg@rrcat.gov.in; Singh, Amol, E-mail: rkg@rrcat.gov.in; Modi, Mohammed H., E-mail: rkg@rrcat.gov.in; Lodha, G. S., E-mail: rkg@rrcat.gov.in [X-ray Optics Section, ISU Division, Raja Ramanna Centre for Advanced Technology, Indore-452013 (India)
2014-04-24T23:59:59.000Z
Higher harmonics contamination is a severe problem in synchrotron beamlines where grating monochromators are used. In these beamlines, absorption edge filters and critical angle mirrors are used to suppress the harmonic contaminations. In the present study, carried out using Indus-1 reflectivity beamline, a harmonic suppression characteristic of Al edge filter and polished silicon wafer are determined. It is found that the Al filter suppresses higher harmonics in 2–7% range whereas the polished silicon wafer can suppress the higher harmonics below 1%. The results of comparative study are discussed.
Thompson, Troy Neal
1989-01-01T23:59:59.000Z
EXAMINATION OF THE BENEFITS OF THE REDUCED PLANTING ALTERNATIVES OF THE 1985 FARM BILL FOR CROP PRODUCERS IN THE BLACKLANDS LAND RESOURCE AREA OF TEXAS A Thesis by TROY MEAL THOMPSON Submitted to the Office of Graduate Studies Texas Atk.... Padber (Head of Departm t) December 1989 kB STRICT Examination of the Benefits of the Reduced Planting Alternatives of the 1985 Farm Bill for Crop Producers in the Blackiands Land Resource Area of Texas. (December 1989) Troy Neal Thompson, B. S...
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
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.
Completion report harmonic analysis of electrical distribution systems
Tolbert, L.M.
1996-03-01T23:59:59.000Z
Harmonic currents have increased dramatically in electrical distribution systems in the last few years due to the growth in non-linear loads found in most electronic devices. Because electrical systems have been designed for linear voltage and current waveforms; (i.e. nearly sinusoidal), non-linear loads can cause serious problems such as overheating conductors or transformers, capacitor failures, inadvertent circuit breaker tripping, or malfunction of electronic equipment. The U.S. Army Center for Public Works has proposed a study to determine what devices are best for reducing or eliminating the effects of harmonics on power systems typical of those existing in their Command, Control, Communication and Intelligence (C3I) sites.
Higher signal harmonics, LISA's angular resolution, and dark energy
K. G. Arun; Bala R. Iyer; B. S. Sathyaprakash; Siddhartha Sinha; Chris Van Den Broeck
2007-10-24T23:59:59.000Z
It is generally believed that the angular resolution of the Laser Interferometer Space Antenna (LISA) for binary supermassive black holes (SMBH) will not be good enough to identify the host galaxy or galaxy cluster. This conclusion, based on using only the dominant harmonic of the binary SMBH signal, changes substantially when higher signal harmonics are included in assessing the parameter estimation problem. We show that in a subset of the source parameter space the angular resolution increases by more than a factor of 10, thereby making it possible for LISA to identify the host galaxy/galaxy cluster. Thus, LISA's observation of certain binary SMBH coalescence events could constrain the dark energy equation of state to within a few percent, comparable to the level expected from other dark energy missions.
Freely floating structures trapping time-harmonic water waves (revisited)
Nikolay Kuznetsov; Oleg Motygin
2014-10-22T23:59:59.000Z
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.
All-Optical Field-Induced Second-Harmonic Generation
Davidson, Roderick B; Ziegler, Jed I; Avanesyan, Sergey M; Lawrie, Ben J; Haglund, Richard F
2015-01-01T23:59:59.000Z
Efficient frequency modulation techniques are crucial to the development of plasmonic metasurfaces for information processing and energy conversion. Nanoscale electric-field confinement in optically pumped plasmonic structures enables stronger nonlinear susceptibilities than are attainable in bulk materials. The interaction of three distinct electric fields in (chi)^3 optical processes allows for all-optical modulation of nonlinear signals. Here we demonstrate effcient third-order second harmonic generation (SHG) in a serrated nanogap plasmonic geometry that generates steep electric field gradients within a dielectric material. We utilize an ultrafast optical pump to control the plasmonically induced electric-fields and to generate bandwidth-limited ultrafast second-harmonic pulses driven by the control pulses. The combination of plasmonic metasurfaces with all-optical control and the freedom to choose the dielectric allow multiple generalizations of this concept and geometry to other four-wave mixing process...
Using Coupled Harmonic Oscillators to Model Some Greenhouse Gas Molecules
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
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.
Density operator and entropy of the damped quantum harmonic oscillator
A. Isar
2005-08-18T23:59:59.000Z
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.
Harmonic oscillator in a one-dimensional box
Paolo Amore; Francisco M. Fernandez
2009-07-31T23:59:59.000Z
We study a harmonic molecule confined to a one--dimensional box with impenetrable walls. We explicitly consider the symmetry of the problem for the cases of different and equal masses. We propose suitable variational functions and compare the approximate energies given by the variation method and perturbation theory with accurate numerical ones for a wide range of values of the box length. We analyze the limits of small and large box size.
Vacuum high harmonic generation in the shock regime
Böhl, P; Ruhl, H
2015-01-01T23:59:59.000Z
Electrodynamics becomes nonlinear and permits the self-interaction of fields when the quantised nature of vacuum states is taken into account. The effect on a plane probe pulse propagating through a stronger constant crossed background is calculated using numerical simulation and by analytically solving the corresponding wave equation. The electromagnetic shock resulting from vacuum high harmonic generation is investigated and a nonlinear shock parameter identified.
Discrete quadratic solitons with competing second-harmonic components
Setzpfandt, Frank; Pertsch, Thomas [Institute of Applied Physics, Abbe Center of Photonics, Friedrich-Schiller-Universitaet Jena, Max-Wien-Platz 1, D-07743 Jena (Germany); Sukhorukov, Andrey A. [Nonlinear Physics Center, Research School of Physics and Engineering, Australian National University, Canberra, 0200 ACT (Australia)
2011-11-15T23:59:59.000Z
We describe families of discrete solitons in quadratic waveguide arrays supported by competing cascaded nonlinear interactions between one fundamental and two second-harmonic modes. We characterize the existence, stability, and excitation dynamics of these solitons and show that their features may resemble those of solitons in saturable media. Our results also demonstrate that a power threshold may appear for soliton formation, leading to a suppression of beam self-focusing which explains recent experimental observations.
SU(3) symmetry in the triaxially deformed harmonic oscillator
Sugawara-Tanabe, Kazuko [Otsuma Women's University, Tama, Tokyo 206-8540 (Japan); Tanabe, Kosai [Department of Physics, Saitama University, Sakura-Ku, Saitama 338-8570 (Japan); Theoretical Nuclear Physics Laboratory, RIKEN Nishina Center, Wako, Saitama 351-0198 (Japan); Arima, Akito [Science Museum, Japan Science Foundation, Tokyo 102-0091 (Japan); Gruber, Bruno [College of Science, Southern Illinois University, Carbondale, Illinois 62901 (United States)
2009-10-15T23:59:59.000Z
An anisotropic harmonic oscillator Hamiltonian can be brought into invariant form under SU(3) transformations by applying nonlinear transformations to the oscillator bosons. The classification of the single-particle levels based on this covering group predicts magic numbers for the triaxial oscillator. It is shown that when the deformation |{delta}| is not too large, the physical operators are approximated by the group operators. Estimation is carried out for the alignment of orbital angular momentum in a triaxial field.
Harmonized Emissions Analysis Tool (HEAT) | Open Energy Information
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of InspectorConcentrating Solar Power BasicsGermany: EnergyPower Finance Jump to:InformationHarmonized
Efficient Forward Second-Harmonic Generation from Planar Archimedean Nanospirals
Davidson, Roderick B; Vargas, Guillermo; Avanesyan, Sergey M; Haglund, Richard F
2015-01-01T23:59:59.000Z
The enhanced electric field at plasmonic resonances in nanoscale antennas can lead to efficient harmonic generation, especially when the plasmonic geometry is asymmetric on either inter-particle or intra-particle levels. The planar Archimedean nanospiral offers a unique geometrical asymmetry for second-harmonic generation (SHG) because the SHG results neither from arranging centrosymmetric nanoparticles in asymmetric groupings, nor from non-centrosymmetric nanoparticles that retain a local axis of symmetry. Here we report forward SHG from planar arrays of Archimedean nanospirals using 15 fs pulse from a Ti:sapphire oscillator tuned to 800 nm wavelength. The measured harmonic-generation efficiencies are 2.6*10-9, 8*10-9 and 1.3*10-8 for left-handed circular, linear, and right-handed circular polarizations, respectively. The uncoated nanospirals are stable under average power loading of as much as 300 uW per nanoparticle. The nanospirals also exhibit a selective conversion between polarization states. These exp...
High harmonic generation from Bloch electrons in solids
Wu, Mengxi; Reis, David A; Schafer, Kenneth J; Gaarde, Mette B
2015-01-01T23:59:59.000Z
We study the generation of high harmonic radiation by Bloch electrons in a model transparent solid driven by a strong mid-infrared laser field. We solve the single-electron time-dependent Schr\\"odinger equation (TDSE) using a velocity-gauge method [New J. Phys. 15, 013006 (2013)] that is numerically stable as the laser intensity and number of energy bands are increased. The resulting harmonic spectrum exhibits a primary plateau due to the coupling of the valence band to the first conduction band, with a cutoff energy that scales linearly with field strength and laser wavelength. We also find a weaker second plateau due to coupling to higher-lying conduction bands, with a cutoff that is also approximately linear in the field strength. To facilitate the analysis of the time-frequency characteristics of the emitted harmonics, we also solve the TDSE in a time-dependent basis set, the Houston states [Phys. Rev. B 33, 5494 (1986)], which allows us to separate inter-band and intra-band contributions to the time-depe...
Background and Reflections on the Life Cycle Assessment Harmonization Project
Heath, G. A.; Mann, M. K.
2012-04-01T23:59:59.000Z
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.
NONE
1995-12-31T23:59:59.000Z
This bill proposes to modify the Uranium Mill Tailings Radiation Control Act of 1978 by modifying section 112(a) by striking `1996` and inserting `1998`.
Braenzel, J.; Schnürer, M.; Steinke, S.; Priebe, G.; Sandner, W. [Max-Born-Institut für Nichtlineare Optik und Kurzzeitspektroskopie, Max Born Str. 2A, 12489 Berlin (Germany)] [Max-Born-Institut für Nichtlineare Optik und Kurzzeitspektroskopie, Max Born Str. 2A, 12489 Berlin (Germany); Andreev, A. [Max-Born-Institut für Nichtlineare Optik und Kurzzeitspektroskopie, Max Born Str. 2A, 12489 Berlin (Germany) [Max-Born-Institut für 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
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.
Even-Harmonic Generation due to Beyond-Born-Oppenheimer Dynamics
Kreibich, Thomas; Lein, Manfred; Engel, Volker; Gross, E. K. U.
2001-09-03T23:59:59.000Z
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.
Half-harmonic Kelvin probe force microscopy with transfer function correction
Guo, Senli [ORNL] [ORNL; Jesse, Stephen [ORNL] [ORNL; Kalinin, Sergei V [ORNL] [ORNL
2012-01-01T23:59:59.000Z
An approach for surface potential imaging based on half-harmonic band excitation (BE) in Kelvin probe force microscopy is demonstrated. Using linear and half-harmonic BE enables quantitative correction of the cantilever transfer function. Half-harmonic band excitation Kelvin probe force microscopy (HBE KPFM) thus allows quantitative separation of surface potential and topographic contributions to the signal, obviating the primary sources of topographic cross-talk. HBE KPFM imaging and voltage spectroscopy methods are illustrated for several model systems.
Ramanujan's Harmonic Number Expansion into Negative Powers of a Triangular Number
Mark B. Villarino
2007-07-28T23:59:59.000Z
An algebraic transformation of the DeTemple-Wang half-integer approximation to the harmonic series produces the general formula and error estimate for the Ramanujan expansion for the nth harmonic number into negative powers of the nth triangular number. We also discuss the history of the Ramanujan expansion for the nth harmonic number as well as sharp estimates of its accuracy, with complete proofs, and we compare it with other approximative formulas.
Harmonic oscillator in a background magnetic field in noncommutative quantum phase-space
Joseph Ben Geloun; Sunandan Gangopadhyay; Frederik G Scholtz
2009-01-22T23:59:59.000Z
We solve explicitly the two-dimensional harmonic oscillator and the harmonic oscillator in a background magnetic field in noncommutative phase-space without making use of any type of representation. A key observation that we make is that for a specific choice of the noncommutative parameters, the time reversal symmetry of the systems get restored since the energy spectrum becomes degenerate. This is in contrast to the noncommutative configuration space where the time reversal symmetry of the harmonic oscillator is always broken.
Harmonic initial-boundary evolution in general relativity
Babiuc, Maria C. [Department of Physics and Astronomy, University of Pittsburgh, Pittsburgh, Pennsylvania 15260 (United States); Szilagyi, Bela [Max-Planck-Institut fuer Gravitationsphysik, Albert-Einstein-Institut, 14476 Golm (Germany); Winicour, Jeffrey [Department of Physics and Astronomy, University of Pittsburgh, Pittsburgh, Pennsylvania 15260 (United States); Max-Planck-Institut fuer Gravitationsphysik, Albert-Einstein-Institut, 14476 Golm (Germany)
2006-03-15T23:59:59.000Z
Computational techniques which establish the stability of an evolution-boundary algorithm for a model wave equation with shift are incorporated into a well-posed version of the initial-boundary value problem for gravitational theory in harmonic coordinates. The resulting algorithm is implemented as a 3-dimensional numerical code which we demonstrate to provide stable, convergent Cauchy evolution in gauge wave and shifted gauge wave testbeds. Code performance is compared for Dirichlet, Neumann, and Sommerfeld boundary conditions and for boundary conditions which explicitly incorporate constraint preservation. The results are used to assess strategies for obtaining physically realistic boundary data by means of Cauchy-characteristic matching.
Quantum Energy Teleportation with a Linear Harmonic Chain
Nambu, Yasusada
2010-01-01T23:59:59.000Z
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.
Quantum Energy Teleportation with a Linear Harmonic Chain
Yasusada Nambu; Masahiro Hotta
2010-10-14T23:59:59.000Z
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.
Generalized energy equipartition in harmonic oscillators driven by active baths
Claudio Maggi; Matteo Paoluzzi; Nicola Pellicciotta; Alessia Lepore; Luca Angelani; Roberto Di Leonardo
2014-11-06T23:59:59.000Z
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.
Harmonic Initial-Boundary Evolution in General Relativity
Maria C. Babiuc; Bela Szilagyi; Jeffrey Winicour
2006-03-14T23:59:59.000Z
Computational techniques which establish the stability of an evolution-boundary algorithm for a model wave equation with shift are incorporated into a well-posed version of the initial-boundary value problem for gravitational theory in harmonic coordinates. The resulting algorithm is implemented as a 3-dimensional numerical code which we demonstrate to provide stable, convergent Cauchy evolution in gauge wave and shifted gauge wave testbeds. Code performance is compared for Dirichlet, Neumann and Sommerfeld boundary conditions and for boundary conditions which explicitly incorporate constraint preservation. The results are used to assess strategies for obtaining physically realistic boundary data by means of Cauchy-characteristic matching.
On the harmonic oscillator on the Lobachevsky plane
P. Stovicek; M. Tusek
2007-09-24T23:59:59.000Z
We introduce the harmonic oscillator on the Lobachevsky plane with the aid of the potential $V(r)=(a^2\\omega^2/4)sinh(r/a)^2$ where $a$ is the curvature radius and $r$ is the geodesic distance from a fixed center. Thus the potential is rotationally symmetric and unbounded likewise as in the Euclidean case. The eigenvalue equation leads to the differential equation of spheroidal functions. We provide a basic numerical analysis of eigenvalues and eigenfunctions in the case when the value of the angular momentum, $m$, equals 0.
Harmonic coordinates in the string and membrane equations
Chun-Lei He; Shou-Jun Huang
2010-04-16T23:59:59.000Z
In this note, we first show that the solutions to Cauchy problems for two versions of relativistic string and membrane equations are diffeomorphic. Then we investigate the coordinates transformation presented in Ref. [9] (see (2.20) in Ref. [9]) which plays an important role in the study on the dynamics of the motion of string in Minkowski space. This kind of transformed coordinates are harmonic coordinates, and the nonlinear relativistic string equations can be straightforwardly simplified into linear wave equations under this transformation.
Temperature-insensitive phase-matched optical harmonic conversion crystal
Barker, C.E.; Eimerl, D.; Velsko, S.P.; Roberts, D.
1993-11-23T23:59:59.000Z
Temperature-insensitive, phase-matched harmonic frequency conversion of laser light at a preferred wavelength of 1.064 microns can be achieved by use of a crystal of deuterated l-arginine phosphate. The crystal is cut and oriented so that the laser light propagates inside the crystal along one of several required directions, which correspond to a temperature-insensitive, phase-matching locus. The method of measuring and calculating the temperature-insensitive, phase-matching angles can be extended to other fundamental wavelengths and other crystal compositions. 12 figures.
Harmon County, Oklahoma: Energy Resources | Open Energy Information
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia: Energy Resources Jump to: navigation,Ohio:Greer County is8584Â°,Hardy County, West Virginia:Harmon County is a
A non-conforming 3D spherical harmonic transport solver
Van Criekingen, S. [Commissariat a l'Energie Atomique CEA-Saclay, DEN/DM2S/SERMA/LENR Bat 470, 91191 Gif-sur-Yvette, Cedex (France)
2006-07-01T23:59:59.000Z
A new 3D transport solver for the time-independent Boltzmann transport equation has been developed. This solver is based on the second-order even-parity form of the transport equation. The angular discretization is performed through the expansion of the angular neutron flux in spherical harmonics (PN method). The novelty of this solver is the use of non-conforming finite elements for the spatial discretization. Such elements lead to a discontinuous flux approximation. This interface continuity requirement relaxation property is shared with mixed-dual formulations such as the ones based on Raviart-Thomas finite elements. Encouraging numerical results are presented. (authors)
Dispersion-free monochromatization method for selecting a single-order harmonic beam
Takahashi, Eiji J; Ichimaru, Satoshi; Midorikawa, Katsumi
2015-01-01T23:59:59.000Z
We propose a method to monochromatize multiple orders of high harmonics by using a proper designed multilayer mirror. Multilayer mirrors designed by our concept realize the perfect extraction of a single-order harmonic from multiple-order harmonic beam, and exhibit broadband tenability and high reflectivity in the soft-x-ray region. Furthermore, the proposed monochromatization method can preserve the femtosecond to attosecond pulse duration for the reflected beam. This device is very useful for ultrafast soft x-ray experiments that require high-order harmonic beams, such as femtosecond/attosecond, time-resolved, pump-probe spectroscopy.
E-Print Network 3.0 - amplificationin harmonic cascade Sample...
Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)
the optical communication link and measure the resulting second- and third-order harmonic ... Source: Atiquzzaman, Mohammed - School of Computer Science, University of...
N = 4 supersymmetric mechanics: Harmonic superspace as a universal tool of model-building
Ivanov, E. A., E-mail: eivanov@theor.jinr.ru [Joint Institute for Nuclear Research, Bogoliubov Laboratory of Theoretical Physics (Russian Federation)
2013-08-15T23:59:59.000Z
We overview applications of the harmonic superspace approach in models of N = 4supersymmetric mechanics, with emphasis on some recent results.
Numerical studies of third-harmonic generation in laser filament in air perturbed by plasma spot
Feng Liubin [Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Science, Beijing 100190 (China); Institute of Atomic and Molecular Physics and Department of Physics, Sichuan University, Chengdu 610065 (China); Lu Xin; Liu Xiaolong; Li Yutong; Chen Liming; Ma Jinglong; Dong Quanli; Wang Weimin [Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Science, Beijing 100190 (China); Xi Tingting [College of Physical Sciences, Graduate University of Chinese Academy of Sciences, Beijing 100049 (China); Sheng Zhengming; Zhang Jie [Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Science, Beijing 100190 (China); Key Laboratory for Laser Plasmas of the Ministry of Education of China and Department of Physics, Shanghai Jiao Tong University, Shanghai 200240 (China); He Duanwei [Institute of Atomic and Molecular Physics and Department of Physics, Sichuan University, Chengdu 610065 (China)
2012-07-15T23:59:59.000Z
Third-harmonic emission from laser filament intercepted by plasma spot is studied by numerical simulations. Significant enhancement of the third-harmonic generation is obtained due to the disturbance of the additional plasma. The contribution of the pure plasma effect and the possible plasma-enhanced third-order susceptibility on the third-harmonic generation enhancement are compared. It is shown that the plasma induced cancellation of destructive interference [Y. Liu et al., Opt. Commun. 284, 4706 (2011)] of two-colored filament is the dominant mechanism of the enhancement of third-harmonic generation.
Houston, Christy Michelle
2002-01-01T23:59:59.000Z
Studies of Texas A&M University in partial fulfillment of the requirements lor I he degree of MASTER OF SCIENCE August 2002 Major Subject: Agricultural Economics FARM-LEVEL ECONOMIC IMPACTS OF THE HOUSE OF REPRESENTATIVES FARM BILL PROPOSAL, H. R... as to style and content by: t lc James Richardson (Chair of Co ii. ie David Anderson (Member) Clai Nix (M mber ~Gene Nelson (Head of Department] August 2002 Major Subject: Agricultural Economics ABSTRACT Farm-Iwvei Economic Impacts of the House...
Clinton, William J. (Bill) (42nd President of the United States)
2012-03-21T23:59:59.000Z
The third annual ARPA-E Energy Innovation Summit was held in Washington D.C. in February, 2012. The event brought together key players from across the energy ecosystem - researchers, entrepreneurs, investors, corporate executives, and government officials - to share ideas for developing and deploying the next generation of energy technologies. Former President Bill Clinton, the 42nd President of the United States, gave the final keynote address of the 2012 Summit on February 29. He addressed the importance of government investment in research that will help move the world toward a cleaner and more secure energy future.
NONE
1995-12-31T23:59:59.000Z
This document contains S.1228, a Bill to impose sanctions on foreign persons exporting petroleum products, natural gas, or related technology to Iran. This bill was introduced in the Senate of the United States, 104th Congress, First session, September 8, 1995.
A Harmonic Potential Approach for Simultaneous Planning and Control of a Generic UAV Platform
Masoud, Ahmad A.
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
Harmonic Scattering from Passive UHF RFID Tags Pavel V. Nikitin and K. V. S. Rao
Hochberg, Michael
and the basic theory; explain our measurement setup, and present experimental results for three different, the level of harmonic backscattering from passive RFID tags remains the subject of interest, especially] literature. This phenomenon also found a good use in harmonic radars [9]. In passive RFID, it was used
Silberberg, Yaron
Polarization gating of high-order harmonic generation takes advantage of the significant reduction of har for generation of polarization gated pulses using wave-plate combinations is inefficient, and propose photon energy radiation from the harmonic spectrum. Need- less to say, the generation of near single
Injection of harmonics generated in gas in a free-electron laser providing intense and
Loss, Daniel
-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
HARMONIC CASCADE FEL DESIGNS FOR LUX, A FACILTY FOR ULTRAFAST X-RAY SCIENCE
Wurtele, Jonathan
-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
3D binary anti-commutative operadic Lax representations for harmonic oscillator
Eugen Paal; Jyri Virkepu
2008-06-08T23:59:59.000Z
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.
Santolik, Ondrej
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
Hydrogen Generation from Water Disassociation Using Small Currents and Harmonics Trien N. Nguyen1
Zhou, Yaoqi
Hydrogen Generation from Water Disassociation Using Small Currents and Harmonics Trien N. Nguyen1 1 Department of Physics, Purdue School of Science Hydrogen can be produced cheaply and efficiently from water sources using a combination of harmonics and small currents. Hydrogen is a clean and virtually
High-order harmonic generation in the presence of a static electric field
Odzak, S. [Faculty of Science, University of Sarajevo, Zmaja od Bosne 35, 71000 Sarajevo (Bosnia and Herzegowina); Milosevic, D.B. [Faculty of Science, University of Sarajevo, Zmaja od Bosne 35, 71000 Sarajevo (Bosnia and Herzegowina); Max-Born-Institut, Max-Born-Strasse 2a, 12489 Berlin (Germany)
2005-09-15T23:59:59.000Z
We consider high-order harmonic generation by a linearly polarized laser field and a parallel static electric field. We first develop a modified saddle-point method which enables a quantitative analysis of the harmonic spectra even in the presence of Coulomb singularities. We introduce a classification of the saddle-point solutions and show that, in the presence of a static electric field which breaks the inversion symmetry, an additional classification number has to be introduced and that the usual saddle-point approximation and the uniform approximation in the case of the coalescing saddle points have to be modified. The theory developed offers a simple and accurate explanation of the static-field-induced multiplateau structure of the harmonic spectra. The longer quantum orbits are responsible for a long extension of the harmonic plateau, while the larger initial electron velocities are the reason of lower harmonic emission rates.
Relativistic second harmonic generation from an S-polarized laser in over-dense plasma
Adusumilli, K.; Goyal, D.; Tripathi, V. K. [Department of Physics, Indian Institute of Technology-Delhi, Delhi, New Delhi 110016 (India)
2011-08-15T23:59:59.000Z
A relativistic S-polarized short pulse laser impinged obliquely on an overdense plasma thin foil is shown to produce very significant second harmonic in the direction of specular reflection. The second harmonic is P-polarized and is driven by the second harmonic ponderomotive force on electrons in the skin layer. The treatment incorporates the electron density modification by the static ponderomotive force and mass modification due to relativistic effects. The second harmonic reflected amplitude is greatest for an optimum value of the angle of incidence. The conversion efficiency of the second harmonic is greater for higher values of incident laser amplitude and lower values of electron density in the foil. The equivalence between the total ponderomotive force and the radiation pressure force is also demonstrated.
Improved gauge driver for the generalized harmonic Einstein system
Lindblom, Lee; Szilagyi, Bela [Theoretical Astrophysics 350-17, California Institute of Technology, Pasadena, California 91125 (United States)
2009-10-15T23:59:59.000Z
A new gauge driver is introduced for the generalized harmonic (GH) representation of Einstein's equation. This new driver allows a rather general class of gauge conditions to be implemented in a way that maintains the hyperbolicity of the combined evolution system. This driver is more stable and effective and, unlike previous drivers, allows stable evolutions using the dual-frame evolution technique. Appropriate boundary conditions for this new gauge driver are constructed, and a new boundary condition for the 'gauge' components of the spacetime metric in the GH Einstein system is introduced. The stability and effectiveness of this new gauge driver are demonstrated through numerical tests, which impose a new damped-wave gauge condition on the evolutions of single black-hole spacetimes.
Gauge Drivers for the Generalized Harmonic Einstein Equations
Lee Lindblom; Keith D. Matthews; Oliver Rinne; Mark A. Scheel
2007-11-13T23:59:59.000Z
The generalized harmonic representation of Einstein's equation is manifestly hyperbolic for a large class of gauge conditions. Unfortunately most of the useful gauges developed over the past several decades by the numerical relativity community are incompatible with the hyperbolicity of the equations in this form. This paper presents a new method of imposing gauge conditions that preserves hyperbolicity for a much wider class of conditions, including as special cases many of the standard ones used in numerical relativity: e.g., K-freezing, Gamma-freezing, Bona-Masso slicing, conformal Gamma-drivers, etc. Analytical and numerical results are presented which test the stability and the effectiveness of this new gauge driver evolution system.
An Improved Gauge Driver for the Generalized Harmonic Einstein System
Lee Lindblom; Bela Szilagyi
2009-10-01T23:59:59.000Z
A new gauge driver is introduced for the generalized harmonic (GH) representation of Einstein's equation. This new driver allows a rather general class of gauge conditions to be implemented in a way that maintains the hyperbolicity of the combined evolution system. This driver is more stable and effective, and unlike previous drivers, allows stable evolutions using the dual-frame evolution technique. Appropriate boundary conditions for this new gauge driver are constructed, and a new boundary condition for the ``gauge'' components of the spacetime metric in the GH Einstein system is introduced. The stability and effectiveness of this new gauge driver are demonstrated through numerical tests, which impose a new damped-wave gauge condition on the evolutions of single black-hole spacetimes.
Absorption by cold Fermi atoms in a harmonic trap
Gediminas Juzeliunas; Marius Masalas
2000-11-10T23:59:59.000Z
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.
High performance control of harmonic instability from HVDC link system
Min, W.K.; Yoo, M.H. [Korea Electric Power Research Inst., Taejeon (Korea, Republic of)
1995-12-31T23:59:59.000Z
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.
An Ning; Ren Huaijin [Department of Physics, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240 (China); State Key Laboratory on Fiber Optic Local Area Communication Networks and Advanced Optical Communication Systems, Shanghai 200240 (China); Zheng Yuanlin [Department of Physics, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240 (China); Key Laboratory for Laser Plasmas (Ministry of Education), Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240 (China); Deng Xuewei [Laser Fusion Research Center, China Academy of Engineering Physics, Mianyang, Sichuan 621900 (China); Chen Xianfeng [Department of Physics, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240 (China); State Key Laboratory on Fiber Optic Local Area Communication Networks and Advanced Optical Communication Systems, Shanghai 200240 (China); Key Laboratory for Laser Plasmas (Ministry of Education), Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240 (China)
2012-05-28T23:59:59.000Z
We propose a scheme for efficient Cherenkov high-order harmonic generation. Second to fifth order harmonic wave are observed in a single periodically poled ferroelectric crystal in our experiment. The noncollinear high-order harmonic generation is produced via enhanced Cherenkov second harmonic cascaded with successive multistep sum-frequency generation with simultaneously longitudinal phase-matching. The emission angle and power dependencies are analyzed in detail experimentally, which coincide with theoretical predictions.
A Millimeter-wave Harmonic Optoelectronic Mixer based on InAlAs/InGaAs Metamorphic HEMT
Choi, Woo-Young
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 1.55ÂµÂµÂµÂµm lightwave and harmonic optoelectronic up-conversion into millimeter-wave band
Choi, Woo-Young
. #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
Journal of Sound and Vibration (1990) 141(3),465-484 THE HARMONIC RESPONSE OF UNIFORM BEAMS ON
Yaman, Yavuz
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
Theory of Second-Harmonic Generation in Colloidal Crystals J. P. Huang,* Y. C. Jian, and C. Z. Fan
Huang, Ji-Ping
Theory of Second-Harmonic Generation in Colloidal Crystals J. P. Huang,* Y. C. Jian, and C. Z. Fan-Kornfeld formulation, we study the effective susceptibility of second-harmonic generation (SHG) in colloidal crystals of second-harmonic generation (SHG); that is, an input (pump) wave can generate another wave with twice
Boschi, Lapo
Can the Earth's harmonic spectrum be derived directly from1 the stochastic inversion of global globe, to a statistical measure of the Earth's complexity: its spherical-harmonic spectrum.18 We follow averaged variance and harmonic spectrum; one can then determine the20 latter from a measurement
HARMONIC FUNCTIONS FOR SEA-SURFACE TEMPERATURES AND SALINITIES, KOKO HEAD, OAHU, 1956-69, AND SEA-SURFACE TEMPERATURES, CHRISTMAS ISLAND, 1954-69 GUNTHER It SECKEL' AND MARIAN Y. Y. YONG' ABSTRACT Harmonic functions, with daily sampling, are on average 0.07Â° C. Harmonic analysis spanning the entire sampling duration shows
Chu, Shih-I
ionization and high-order-harmonic generation driven by intense frequency-comb laser fields: An ab initio investigation of the coherent control and significant enhancement of multiphoton ionization (MPI) and high-order-harmonic and molecular dynamics [28Â30], and the generation of soft-x-ray attosecond pulses by high-order-harmonic
Klein, Stanley
METHODS Four combinations of two cosine gratings, the 2nd and 6th harmonics of a 0.5 c/deg grating harmonic in isolation, pattern 2 is the 6th harmonic in isolation, pattern 3 is the 2nd plus the 6th and pattern 4 is the 2nd minus the 6th. The one-dimensional noise was the sum of 1st-7th harmonics of a 0.5c
Ellsworth, C.
2008-01-01T23:59:59.000Z
, and prices, and the technologies and market mechanisms that are likely to be employed to reduce CO2 emissions. The paper also reports on the results of analysis of GHG bills performed by SAIC using the National Energy Modeling System (NEMS). NEMS...
Theoretical analysis of high-order harmonic generation from a coherent superposition of states
Milosevic, Dejan B. [Faculty of Science, University of Sarajevo, Zmaja od Bosne 35, 71000 Sarajevo (Bosnia and Herzegowina); Max-Born-Institut, Max-Born-Strasse 2a, Berlin, 12489 (Germany)
2006-02-15T23:59:59.000Z
A quantum theory of high-order harmonic generation by a strong laser field in the presence of more bound states is formulated. The obtained numerical and analytical results for a two-state hydrogenlike atom model show that the harmonic spectrum consists of two parts: a usual single-state harmonic spectrum of odd harmonics having the energies (2k+1){omega} and a resonant part with the peaks around the excitation energy {delta}{omega}. The energy of the harmonics in the resonant part of the spectrum is equal to {delta}{omega}{+-}{omega}, {delta}{omega}{+-}3{omega}, .... For energies higher than the excitation energy, the resonant part forms a plateau, followed by a cutoff. The emission rate of the harmonics in this resonant plateau is many orders of magnitude higher than that of the harmonics generated in the presence of the ground state alone. The influence of the depletion of the initial states, as well as of the pulse shape and intensity, is analyzed.
Resonant third-harmonic generation of a short-pulse laser from electron-hole plasmas
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
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.
Analysis of higher harmonic contamination with a modified approach using a grating analyser
Gupta, Rajkumar, E-mail: rkg@rract.gov.in; Modi, Mohammed H.; Lodha, G. S. [X-ray Optics Section, Indus Synchrotrons Utilization Division, Raja Ramanna Centre for Advanced Technology, Indore 452 013 (India)] [X-ray Optics Section, Indus Synchrotrons Utilization Division, Raja Ramanna Centre for Advanced Technology, Indore 452 013 (India); Kumar, M.; Chakera, J. A. [Laser Plasma Division, Raja Ramanna Centre for Advanced Technology, Indore 452 013 (India)] [Laser Plasma Division, Raja Ramanna Centre for Advanced Technology, Indore 452 013 (India)
2014-04-15T23:59:59.000Z
Soft x-ray spectra of the toroidal grating monochromator (TGM) at the reflectivity beamline of Indus-1 synchrotron source are analyzed for higher harmonic contribution. A diffraction grating of central line spacing 1200 l/mm is used to disperse the monochromatic beam received from TGM to quantify the harmonic contents in the 50–360 Å wavelength range. In order to calculate the harmonic contamination, conventionally the intensity of higher order peak is divided by first order peak intensity of the desired wavelength. This approach is found to give wrong estimate as first order peak itself is overlapped by higher order peaks. In the present study, a modified approach has been proposed to calculate harmonic contamination where the intensity contributions of overlapping orders have been removed from the first order diffraction peak of the desired wavelength. It is found that the order contamination in the TGM spectra is less than 15% in the wavelength range of 90–180 Å. The total harmonic contribution increases from 6%–60% in the wavelength range of 150–260 Å. The critical wavelength of Indus-1 is 61 Å hence the harmonic contamination below 90 Å is significantly low. The results obtained with modified approach match well with those obtained by quantitative analysis of multilayer reflectivity data. The obtained higher harmonics data are used to fit the transmission of aluminum edge filter in the 120–360 Å wavelength range.
Third harmonic stimulated Raman backscattering of laser in a magnetized plasma
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
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.
Generation of high-power tunable terahertz-radiation by nonrelativistic beam-echo harmonic effect
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
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.
Analysis of second harmonic instability for the Chateauguay HVDC/SVC scheme
Hammad, A.E. (ABB Power Systems, 5401-Baden (CH))
1992-01-01T23:59:59.000Z
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.
On compactified harmonic/projective superspace, 5D superconformal theories, and all that
Sergei M. Kuzenko
2007-07-16T23:59:59.000Z
Within the supertwistor approach, we analyse the superconformal structure of 4D N = 2 compactified harmonic/projective superspace. In the case of 5D superconformal symmetry, we derive the superconformal Killing vectors and related building blocks which emerge in the transformation laws of primary superfields. Various off-shell superconformal multiplets are presented both in 5D harmonic and projective superspaces, including the so-called tropical (vector) multiplet and polar (hyper)multiplet. Families of superconformal actions are described both in the 5D harmonic and projective superspace settings. We also present examples of 5D superconformal theories with gauged central charge.
Raman shifted third harmonic generation of upper hybrid radiation in a plasma
Magesh Kumar, K.K.; Singh, Ranjeet; Tripathi, V. K. [Department of Physics, Indian Institute of Technology Delhi, New Delhi-110016 (India)
2012-11-15T23:59:59.000Z
Raman shifted third harmonic generation of upper hybrid radiation is proposed and studied. In the presence of ambient magnetic field, the plasma wave present in the system produces electron density ripple (perturbation) which couples with the velocity imparted by the nonlinear ponderomotive force at twice the laser frequency producing the Raman shifted third harmonic field. The wave vector of the plasma wave provides the uncompensated momentum necessary for phase matching condition. The applied magnetic field can be adjusted to have the phase matching for the given plasma frequency. The energy conversion ratio from pump to the Raman shifted third harmonic generation of upper hybrid radiation is analyzed.
Electro-optic harmonic conversion to switch a laser beam out of a cavity
Haas, Roger A. (Pleasanton, CA); Henesian, Mark A. (Livermore, CA)
1987-01-01T23:59:59.000Z
The invention is a switch to permit a laser beam to escape a laser cavity through the use of an externally applied electric field across a harmonic conversion crystal. Amplification takes place in the laser cavity, and then the laser beam is switched out by the laser light being harmonically converted with dichroic or polarization sensitive elements present to alter the optical path of the harmonically converted laser light. Modulation of the laser beam can also be accomplished by varying the external electric field.
Generalized Harmonic Oscillator and the Schrödinger Equation with Position-Dependent Mass
Ju Guo-Xing; Cai Chang-Ying; Ren Zhong-Zhou
2007-07-22T23:59:59.000Z
We study the generalized harmonic oscillator which has both the position-dependent mass and the potential depending on the form of mass function in a more general framework. The explicit expressions of the eigenvalue and eigenfunction for such system are given, they have the same forms as those for the usual harmonic oscillator with constant mass. The coherent state and the its properties for the system with PDM are also discussed. We give the corresponding effective potentials for several mass functions, the systems with such potentials are isospectral to the usual harmonic oscillator.
Boyarinov, V. F.; Kondrushin, A. E.; Fomichenko, P. A. [National Research Center, Kurchatov Inst., Kurchatov Sq. 1, Moscow (Russian Federation)
2012-07-01T23:59:59.000Z
Finite-difference time-dependent equations of Surface Harmonics method have been obtained for plane geometry. Verification of these equations has been carried out by calculations of tasks from 'Benchmark Problem Book ANL-7416'. The capacity and efficiency of the Surface Harmonics method have been demonstrated by solution of the time-dependent neutron transport equation in diffusion approximation. The results of studies showed that implementation of Surface Harmonics method for full-scale calculations will lead to a significant progress in the efficient solution of the time-dependent neutron transport problems in nuclear reactors. (authors)
Energy transport by acoustic modes of harmonic lattices
Lisa Harris; Jani Lukkarinen; Stefan Teufel; Florian Theil
2006-11-21T23:59:59.000Z
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.
Casimir Friction Force and Energy Dissipation for Moving Harmonic Oscillators
Johan S. Høye; Iver Brevik
2010-01-14T23:59:59.000Z
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.
First Exit Times of Harmonically Trapped Particles: A Didactic Review
D. S. Grebenkov
2014-11-13T23:59:59.000Z
We revise the classical problem of characterizing first exit times of a harmonically trapped particle whose motion is described by one- or multi-dimensional Ornstein-Uhlenbeck process. We start by recalling the main derivation steps of a propagator using Langevin and Fokker-Planck equations. The mean exit time, the moment-generating function, and the survival probability are then expressed through confluent hypergeometric functions and thoroughly analyzed. We also present a rapidly converging series representation of confluent hypergeometric functions that is particularly well suited for numerical computation of eigenvalues and eigenfunctions of the governing Fokker-Planck operator. We discuss several applications of first exit times such as detection of time intervals during which motor proteins exert a constant force onto a tracer in optical tweezers single-particle tracking experiments; adhesion bond dissociation under mechanical stress; characterization of active periods of trend following and mean-reverting strategies in algorithmic trading on stock markets; relation to the distribution of first crossing times of a moving boundary by Brownian motion. Some extensions are described, including diffusion under quadratic double-well potential and anomalous diffusion.
Dynamically self-regular quantum harmonic black holes
Spallucci, Euro
2015-01-01T23:59:59.000Z
The recently proposed UV self-complete quantum gravity program is a new and very interesting way to envision Planckian/trans-Planckian physics. in this new framework, high energy scattering is dominated by the creation of micro black holes, and it is experimentally impossible to probe distances shorter than the horizon radius. In this letter we present a model which realizes this idea through the creation of self-regular quantum black holes admitting a minimal size extremal configuration. Their radius provides a dynamically generated minimal length acting as a universal short-distance cut-off. We propose a quantisation scheme for this new kind of microscopic objects based on a Bohr-like approach, which does not require a detailed knowledge of quantum gravity. The resulting black hole quantum picture resembles the energy spectrum of a quantum harmonic oscillator. The mass of the extremal configuration plays the role of zero-point energy. Large quantum number re-establish the classical black hole description. F...
A continuous-wave second harmonic gyrotron oscillator at 460 GHz
Hornstein, Melissa K. (Melissa Kristen), 1977-
2005-01-01T23:59:59.000Z
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 ...
Total compensation of line-side switching harmonics in converter-fed ac locomotives
Krah, J.O.; Holtz, J. [Univ. of Wuppertal (Germany)] [Univ. of Wuppertal (Germany)
1995-11-01T23:59:59.000Z
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.
A proposed framework for harmonization of the veterinary medicine curriculum in Latin America
Ortega Meyer, Bruno de Jesus
2009-05-15T23:59:59.000Z
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...
Harmonic wavelet analysis of modulated tunable diode laser absorption spectroscopy signals
Cheng, Harry H.
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
Heath, G.
2012-06-01T23:59:59.000Z
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.
Williams, S.M. (Naval Postgraduate School, Monterey, CA (United States)); Brownfield, G.T. (Union Electric Co., St. Louis, MO (United States)); Duffus, J.W. (Univ. of Missouri, Columbia, MO (United States). Power Electronics Research Center)
1993-04-01T23:59:59.000Z
Power electronic loads are occupying an increasing fraction of the total load on distribution feeders. Coincidentally, there is a greater use of power factor correction capacitors on the distribution system. These two factors can present poor operating conditions in the form of high harmonic levels propagating through a distribution system. Electric utility engineers are facing an ever increasing number of situations which require the analysis of the propagation of harmonics on a distribution system. HARMFLO was developed by EPRI for use in the analysis of harmonics on a power system. However, for a typical analysis of a distribution system, data for some of the parameters required by HARMFLO are not available. Furthermore, exact load information is usually not available. Harmonic levels determined from field tests on a distribution system are compared to results of HARMFLO simulations to determine if this analysis tool can be expected to provide useful results despite the lack of exact information for load modeling and other system parameters.
Spectrally resolved spatiotemporal features of quantum paths in high-order harmonic generation
He, Lixin; Zhang, Qingbin; Zhai, Chunyang; Wang, Feng; Shi, Wenjing; Lu, Peixiang
2015-01-01T23:59:59.000Z
We experimentally disentangle the contributions of different quantum paths in high-order harmonic generation (HHG) from the spectrally and spatially resolved harmonic spectra. By adjusting the laser intensity and focusing position, we simultaneously observe the spectrum splitting, frequency shift and intensity-dependent modulation of harmonic yields both for the short and long paths. Based on the simulations, we discriminate the physical mechanisms of the intensity-dependent modulation of HHG due to the quantum path interference and macroscopic interference effects. Moreover, it is shown that the atomic dipole phases of different quantum paths are encoded in the frequency shift. In turn, it enables us to retrieve the atomic dipole phases and the temporal chirps of different quantum paths from the measured harmonic spectra. This result gives an informative mapping of spatiotemporal and spectral features of quantum paths in HHG.
Spectrum of the harmonic oscillator in a general noncommutative phase space
Mahouton Norbert Hounkonnou; Dine Ousmane Samary
2011-08-07T23:59:59.000Z
Harmonic oscillator, in 2-dimensional noncommutative phase space with non-vanishing momentum-momentum commutators, is studied using an algebraic approach. The corresponding eigenvalue problem is solved and discussed.
de Rooij, Michael Andrew (Clifton Park, NY); Steigerwald, Robert Louis (Burnt Hills, NY); Delgado, Eladio Clemente (Burnt Hills, NY)
2008-12-16T23:59:59.000Z
Photovoltaic power converter system including a controller configured to reduce load harmonics is provided. The system comprises a photovoltaic array and an inverter electrically coupled to the array to generate an output current for energizing a load connected to the inverter and to a mains grid supply voltage. The system further comprises a controller including a first circuit coupled to receive a load current to measure a harmonic current in the load current. The controller includes a second circuit to generate a fundamental reference drawn by the load. The controller further includes a third circuit for combining the measured harmonic current and the fundamental reference to generate a command output signal for generating the output current for energizing the load connected to the inverter. The photovoltaic system may be configured to compensate harmonic currents that may be drawn by the load.
Two-color phase control of high-order harmonic generation in intense laser fields
Telnov, Dmitry A.; Wang, Jingyan; Chu, Shih-I
1995-11-01T23:59:59.000Z
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...
Generation of octave-spanning multiple harmonics for ultrafast waveform synthesis
Hsu, Wei-Chun
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.
Chu, Shih-I
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
On the Harmonic approximation for large Josephson junction coupling charge qubits
T. Shi; B. Chen; Z. Song; C. P. Sun
2004-09-23T23:59:59.000Z
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.
High-harmonic XUV source for time- and angle-resolved photoemission spectroscopy
Dakovski, Georgi L [Los Alamos National Laboratory; Li, Yinwan [Los Alamos National Laboratory; Durakiewicz, Tomasz [Los Alamos National Laboratory; Rodriguez, George [Los Alamos National Laboratory
2009-01-01T23:59:59.000Z
We present a laser-based apparatus for visible pump/XUV probe time- and angle-resolved photoemission spectroscopy (TRARPES) utilizing high-harmonic generation from a noble gas. Femtosecond temporal resolution for each selected harmonic is achieved by using a time-delay-compensated monochromator (TCM). The source has been used to obtain photoemission spectra from insulators (UO{sub 2}) and ultrafast pump/probe processes in semiconductors (GaAs).
Ole Steuernagel
2014-06-17T23:59:59.000Z
In quantum physics the free particle and the harmonically trapped particle are arguably the most important systems a physicist needs to know about. It is little known that, mathematically, they are one and the same. This knowledge helps us to understand either from the viewpoint of the other. Here we show that all general time-dependent solutions of the free-particle Schroedinger equation can be mapped to solutions of the Schroedinger equation for harmonic potentials, both the trapping oscillator and the inverted 'oscillator'. This map is fully invertible and therefore induces an isomorphism between both types of system, they are equivalent. A composition of the map and its inverse allows us to map from one harmonic oscillator to another with a different spring constant and different center position. The map is independent of the state of the system, consisting only of a coordinate transformation and multiplication by a form factor, and can be chosen such that the state is identical in both systems at one point in time. This transition point in time can be chosen freely, the wave function of the particle evolving in time in one system before the transition point can therefore be linked up smoothly with the wave function for the other system and its future evolution after the transition point. Such a cut-and-paste procedure allows us to describe the instantaneous changes of the environment a particle finds itself in. Transitions from free to trapped systems, between harmonic traps of different spring constants or center positions, or, from harmonic binding to repulsive harmonic potentials are straightforwardly modelled. This includes some time-dependent harmonic potentials. The mappings introduced here are computationally more efficient than either state-projection or harmonic oscillator propagator techniques conventionally employed when describing instantaneous (non-a 1,920 characters
Attachment of second harmonic-active moiety to molecules for detection of molecules at interfaces
Salafsky, Joshua S.; Eisenthal, Kenneth B.
2005-10-11T23:59:59.000Z
This invention provides methods of detecting molecules at an interface, which comprise labeling the molecules with a second harmonic-active moiety and detecting the labeled molecules at the interface using a surface selective technique. The invention also provides methods for detecting a molecule in a medium and for determining the orientation of a molecular species within a planar surface using a second harmonic-active moiety and a surface selective technique.
Second harmonic generation from direct band gap quantum dots pumped by femtosecond laser pulses
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
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.
Harmonic mode competition in a terahertz gyrotron backward-wave oscillator
Kao, S. H.; Chiu, C. C.; Chang, P. C.; Wu, K. L.; Chu, K. R. [Department of Physics, National Taiwan University, Taipei 106, Taiwan (China)
2012-10-15T23:59:59.000Z
Electron cyclotron maser interactions at terahertz (THz) frequencies require a high-order-mode structure to reduce the wall loss to a tolerable level. To generate THz radiation, it is also essential to employ cyclotron harmonic resonances to reduce the required magnetic field strength to a value within the capability of the superconducting magnets. However, much weaker harmonic interactions in a high-order-mode structure lead to serious mode competition problems. The current paper addresses harmonic mode competition in the gyrotron backward wave oscillator (gyro-BWO). We begin with a comparative study of the mode formation and oscillation thresholds in the gyro-BWO and gyromonotron. Differences in linear features result in far fewer 'windows' for harmonic operation of the gyro-BWO. Nonlinear consequences of these differences are examined in particle simulations of the multimode competition processes in the gyro-BWO, which shed light on the competition criteria between modes of different as well as the same cyclotron harmonic numbers. The viability of a harmonic gyro-BWO is assessed on the basis of the results obtained.
Electron cyclotron harmonic resonances in high-frequency heating of the ionosphere
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
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.
Cumulative Second Harmonic Generation in Lamb Waves for the Detection of Material Nonlinearities
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
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.
Non-linear harmonic generation in finite amplitude black hole oscillations
Philippos Papadopoulos
2001-04-09T23:59:59.000Z
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.
Not Available
1986-01-01T23:59:59.000Z
This bill requiring all US companies to discontinue any participation in the production, marketing, or distribution of Libyan oil revokes all previous authority for such activity. The Act would become effective on June 30, 1986 or 30 days after enactment.
NONE
1995-12-31T23:59:59.000Z
This bill was proposed to extend the deadlines applicable to certain hydroelectric projects, and for other purposes. The bill proposes extending the deadlines applying to certain hydroelectric projects in West Virginia, Kentucky, Washington, Oregon, and Arkansas. It proposes limited exemptions for licensing provisions for a power transmission project in New Mexico, extends Alaska`s state jurisdiction over small hydroelectric projects in the state, and amends the jurisdiction of FERC for licensing fresh water hydroelectric projects in Hawaii.
Models of soft rotators and the theory of a harmonic rotator
Zahid Zakir
2012-12-12T23:59:59.000Z
The states of a planar oscillator are separated to a vibrational mode, containing a zero-point energy, and a rotational mode without the zero-point energy, but having a conserved angular momentum. On the basis of the analysis of properties of models of rigid and semirigid rotators, the theory of soft rotators is formulated where the harmonic attractive force is balanced only by the centrifugal force. As examples a Coulomb rotator (the Bohr model) and a magneto-harmonic rotator (the Fock-Landau levels) are considered. Disappearance of the radial speed in the model of a magneto-harmonic rotator is taken as a defining property of a pure rotational motion in the harmonic potential. After the exception of energies of the magnetic and spin decompositions, specific to magnetic fields, one turns to a simple and general model of a planar harmonic rotator (circular oscillator without radial speed) where kinetic energy is reduced to the purely rotational energy. Energy levels of the harmonic rotator have the same frequency and are twice degenerate, the energy spectrum is equidistant. In the ground state there is no zero-point energy from rotational modes, and the zero-point energy of vibrational modes can be compensated by spin effects or symmetries of the system. In this case the operators of observables vanish the ground state, i.e. are "strongly" normally ordered. In a chain of harmonic rotators collective rotations around a common axis lead to transverse waves, at quantization of which there appear quasi-particles and holes carrying an angular momentum. In the chain SU(2) appears as a group of symmetry of a rotator.
N. Haag; W. Gelletly; F. von Feilitzsch; L. Oberauer; W. Potzel; K. Schreckenbach; A. A. Sonzogni
2014-05-30T23:59:59.000Z
In the 1980s, measurements of the cumulative $\\beta$ spectra of the fission products following the thermal neutron induced fission of $^{235}$U, $^{239}$Pu, and $^{241}$Pu were performed at the magnetic spectrometer BILL at the ILL in Grenoble. This data was published in bins of 250 keV. In this paper, we re-publish the original data in a binning of 50 keV for $^{235}$U and 100 keV for $^{239}$Pu and $^{241}$Pu.
Haberl, J. S.; Culp, C.; Yazdani, B.; Fitzpatrick, T.; Turner, W. D.
2002-01-01T23:59:59.000Z
ESL-TR-02/06-01 TEXAS1 SENATE BILL 5 LEGISLATION FOR REDUCING POLLUTION IN NON- ATTAINMENT AND AFFECTED AREAS: Report for the TERP Advisory Board Meeting Jeff Haberl, Charles Culp, Bahman Yazdani, Tom Fitzpatrick, Dan Turner Energy Systems... Laboratory (ESL) Texas A&M University System June 2002 ENERGY SYSTEMS LABORATORY Texas Engineering Experiment Station Texas A&M University System TERP Report p. 1 EXECUTIVE SUMMARY This report outlines the Energy Systems Laboratory's responsibilities...
Jha, Pallavi; Agrawal, Ekta [Department of Physics, University of Lucknow, Lucknow-226007 (India)
2014-05-15T23:59:59.000Z
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.
Scaling of the generation of high-order harmonics in large gas media with focal length
Boutu, W.; Auguste, T.; Caumes, J. P.; Carre, B. [Service des Photons, Atomes et Molecules, CEA-Saclay, F-91191 Gif-sur-Yvette Cedex (France); Merdji, H. [Service des Photons, Atomes et Molecules, CEA-Saclay, F-91191 Gif-sur-Yvette Cedex (France); PULSE Institute for Ultrafast Energy Science, Stanford Linear Accelerator Center, Stanford University, 2575 Sand Hill Road, Menlo Park, California 94025 (United States)
2011-11-15T23:59:59.000Z
We present theoretical and experimental results on high-order harmonic generation in a low-density few-centimeter-long gas medium (L{sub med}{<=} 10 cm). We study the dependence with focal length of harmonic efficiency. Theoretically, we consider in detail the generation of the 25th harmonic of a short pulse Ti:sapphire laser in argon. Within the strong-field approximation for the atomic dipole, and a complete account of the macroscopic propagation, we compute the number of photons produced as a function of the medium parameters and the focusing conditions. The simulations show that, at constant intensity, the emission of the 25th harmonic scales with the focal length as {approx}f{sup 4} at low pressure (P=2 Torr) and as {approx}f{sup 6} at higher pressure (P=5 Torr). At constant laser energy, we find that the harmonic signal scales approximately as f{sup 2} at low pressure and as f{sup 4} at higher pressure. Those numerical results are compared with experimental data.
Low-order-mode harmonic multiplying gyrotron traveling-wave amplifier in W band
Yeh, Y. S.; Chen, C. H.; Yang, S. J.; Lai, C. H.; Lin, T. Y.; Lo, Y. C.; Hong, J. W. [Department of Electro-Optical Engineering, Southern Taiwan University, Tainan, Taiwan (China); Hung, C. L. [Department of Communication Engineering, National Penghu University of Science and Technology, Penghu, Taiwan (China); Chang, T. H. [Department of Physics, National Tsing Hua University, Hsinchu, Taiwan (China)
2012-09-15T23:59:59.000Z
Harmonic multiplying gyrotron traveling-wave amplifiers (gyro-TWAs) allow for magnetic field reduction and frequency multiplication. To avoid absolute instabilities, this work proposes a W-band harmonic multiplying gyro-TWA operating at low-order modes. By amplifying a fundamental harmonic TE{sub 11} drive wave, the second harmonic component of the beam current initiates a TE{sub 21} wave to be amplified. Absolute instabilities in the gyro-TWA are suppressed by shortening the interaction circuit and increasing wall losses. Simulation results reveal that compared with Ka-band gyro-TWTs, the lower wall losses effectively suppress absolute instabilities in the W-band gyro-TWA. However, a global reflective oscillation occurs as the wall losses decrease. Increasing the length or resistivity of the lossy section can reduce the feedback of the oscillation to stabilize the amplifier. The W-band harmonic multiplying gyro-TWA is predicted to yield a peak output power of 111 kW at 98 GHz with an efficiency of 25%, a saturated gain of 26 dB, and a bandwidth of 1.6 GHz for a 60 kV, 7.5 A electron beam with an axial velocity spread of 8%.
Kato, Kosaku; Minemoto, Shinichirou; Sakai, Hirofumi [Department of Physics, Graduate School of Science, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033 (Japan)
2011-08-15T23:59:59.000Z
High-order-harmonic generation from aligned N{sub 2}, O{sub 2}, and CO{sub 2} molecules is investigated by 1300-nm and 800-nm pulses. The harmonic intensities of 1300-nm pulses from aligned molecules show harmonic photon energy dependence similar to those of 800-nm pulses. Suppression of harmonic intensity from aligned CO{sub 2} molecules is observed for both 1300- and 800-nm pulses over the same harmonic photon energy range. As the dominant mechanism for the harmonic intensity suppression from aligned CO{sub 2} molecules, the present results support the two-center interference picture rather than the dynamical interference picture.
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
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 field—the 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.
Controlling the Interference of Multiple Molecular Orbitals in High-Harmonic Generation
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
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.
Carrier-wave Rabi flopping signatures in high-order harmonic generation for alkali atoms
Ciappina, M F; Landsman, A S; Zimmermann, T; Lewenstein, M; Roso, L; Krausz, F
2015-01-01T23:59:59.000Z
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.
Guo, Y.; Keller, J.; Parker, R. G.
2012-06-01T23:59:59.000Z
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.
Improved quantum correlations in second harmonic generation with a squeezed pump
E. MArcellina; J. F. Corney; M. K. Olsen
2013-02-11T23:59:59.000Z
We investigate the effects of a squeezed pump on the quantum properties and conversion efficiency of the light produced in single-pass second harmonic generation. Using stochastic integration of the two-mode equations of motion in the positive-P representation, we find that larger violations of continuous-variable harmonic entanglement criteria are available for lesser effective interaction strengths than with a coherent pump. This enhancement of the quantum properties also applies to violations of the Reid-Drummond inequalities used to demonstrate a harmonic version of the Einstein-Podolsky-Rosen paradox. We find that the conversion efficiency is largely unchanged except for very low pump intensities and high levels of squeezing.
Noncommutative quantum mechanics of a harmonic oscillator under linearized gravitational waves
Anirban Saha; Sunandan Gangopadhyay; Swarup Saha
2011-06-09T23:59:59.000Z
We consider the quantum dynamics of a harmonic oscillator in noncommutative space under the influence of linearized gravitational waves (GW) in the long wave-length and low-velocity limit. Following the prescription in \\cite{ncgw1} we quantize the system. The Hamiltonian of the system is solved by using standard algebraic iterative methods. The solution shows signatures of the coordinate noncommutativity via alterations in the oscillation frequency of the harmonic oscillator system from its commutative counterpart. Moreover, it is found that the response of the harmonic oscillator to periodic GW, when their frequencies match, will oscillate with a time scale imposed by the NC parameter. We expect this noncommutative signature to show up as some noise source in the GW detection experiments since the recent phenomenological upper-bounds set on spatial noncommutative parameter implies a length-scale comparable to the length-variations due to the passage of gravitational waves, detectable in the present day GW detectors.
Role of ellipticity in high-order harmonic generation by homonuclear diatomic molecules
Odzak, S. [Faculty of Science, University of Sarajevo, Zmaja od Bosne 35, 71000 Sarajevo (Bosnia and Herzegowina); Milosevic, D. B. [Faculty of Science, University of Sarajevo, Zmaja od Bosne 35, 71000 Sarajevo (Bosnia and Herzegowina); Max-Born-Institut, Max-Born-Strasse 2a, D-12489 Berlin (Germany)
2010-08-15T23:59:59.000Z
We present a theory of high-order harmonic generation by diatomic molecules exposed to an elliptically polarized laser field. This theory is based on the molecular strong-field approximation with the laser-field-dressed initial bound state and the undressed final state. The interference minima, observed for linear polarization, are blurred with the increase of the laser-field ellipticity. The nth harmonic emission rate has contributions of the components of the T-matrix element in the direction of the laser-field polarization and in the direction perpendicular to it. We analyze the destructive interference condition for this perpendicular component. Taking into account that the aligned molecules are an anisotropic medium for high-harmonic generation, we introduce elliptic dichroism as a measure of this anisotropy and discuss possibilities of its use for determining the molecular structure.
Theory of high harmonic generation in relativistic laser interaction with overdense plasma
T. Baeva; S. Gordienko; A. Pukhov
2006-04-28T23:59:59.000Z
High harmonic generation due to the interaction of a short ultra relativistic laser pulse with overdense plasma is studied analytically and numerically. On the basis of the ultra relativistic similarity theory we show that the high harmonic spectrum is universal, i.e. it does not depend on the interaction details. The spectrum includes the power law part $I_n\\propto n^{-8/3}$ for $nharmonic cutoff at $\\propto \\gamma_{\\max}^3$ is parametrically larger than the $4 \\gamma_{\\max}^2$ predicted by the ``oscillating mirror'' model based on the Doppler effect. The cornerstone of our theory is the new physical phenomenon: spikes in the relativistic $\\gamma$-factor of the plasma surface. These spikes define the high harmonic spectrum and lead to attosecond pulses in the reflected radiation.
Harmonic mixing in two coupled qubits: quantum synchronization via ac drives
S. E. Savel'ev; Z. Washington; A. M. Zagoskin; M. J. Everitt
2012-10-12T23:59:59.000Z
Simulating a system of two driven coupled qubits, we show that the time-averaged probability to find one driven qubit in its ground or excited state can be controlled by an ac drive in the second qubit. Moreover, off-diagonal elements of the density matrix responsible for quantum coherence can also be controlled via driving the second qubit, i.e., quantum coherence can be enhanced by appropriate choice of the bi-harmonic signal. Such a dynamic synchronization of two differently driven qubits has an analogy with harmonic mixing of Brownian particles forced by two signals through a substrate. Nevertheless, the quantum synchronization in two qubits occurs due to multiplicative coupling of signals in the qubits rather than via a nonlinear harmonic mixing for a classical nano-particle.
Nonlinear absorption and harmonic generation of laser in a gas with anharmonic clusters
Kumar, Manoj; Tripathi, V. K. [Department of Physics, Indian Institute of Technology Delhi, New Delhi 110016 (India)
2013-02-15T23:59:59.000Z
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.
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
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.
D. Martinez; J. C. Flores-Urbina; R. D. Mota; V. D. Granados
2010-05-21T23:59:59.000Z
We apply the Schr\\"odinger factorization to construct the ladder operators for hydrogen atom, Mie-type potential, harmonic oscillator and pseudo-harmonic oscillator in arbitrary dimensions. By generalizing these operators we show that the dynamical algebra for these problems is the $su(1,1)$ Lie algebra.
Internal Decoherence of a Gaussian Wave Packet in a Harmonic Potential
A. Cidrim; F. E. A. dos Santos; A. O. Caldeira
2014-07-16T23:59:59.000Z
We have studied the quantum dissipative problem of a Gaussian wave packet under the influence of a harmonic potential. A phenomenological approach to dissipation is adopted in the light of the well-known model in which the environment is composed of a bath of non-interacting harmonic oscillators. As one of the effects of the coupling to the bath is the evolution of an initially pure wave packet into a statistical mixture, we estimate the characteristic time elapsed for this to occur for different regimes of temperature, damping, and also different initial states.
Kim, Young-Do; Kim, Yu-Sin; Lee, Hyo-Chang; Bang, Jin-Young; Chung, Chin-Wook [Department of Electrical Engineering, Hanyang University, 17 Heangdang-dong, Seongdong-gu, Seoul 133-791 (Korea, Republic of)
2011-03-15T23:59:59.000Z
The characteristics of probe currents induced by applying various probe voltage waveforms, such as sinusoidal, sawtooth, square, and triangular, were investigated at a floating potential. It was found that the measured probe currents have many harmonics depending on the voltage waveforms. This was mainly due to the nonlinearity of the sheath in the plasma and was analyzed using the fast Fourier transform and a circuit model. By applying a triangular voltage waveform to a probe, plasma parameters such as electron temperature and plasma density could be obtained and compared to those of a single Langmuir probe and a floating harmonic method.
Spin conservation in high-order-harmonic generation using bicircular fields
Emilio Pisanty; Misha Ivanov; Suren Sukiasyan
2014-12-10T23:59:59.000Z
We present an alternative theoretical model for a recent experiment [A.Fleischer et al., Nature Photon. 8, 543 (2014)] which used bichromatic, counter-rotating high intensity laser pulses to probe the conservation of spin angular momentum in high harmonic generation. We separate elliptical polarizations into independent circular fields with definite angular momentum, instead of using the expectation value of spin for each photon in the conservation equation, and we find good agreement with the experimental results. In our description the generation of each individual harmonic conserves spin angular momentum, in contrast to the model proposed by Fleischer et al. Our model also correctly describes analogous processes in standard perturbative optics.
Heath, G.; O'Donoughue, P.; Whitaker, M.
2012-12-01T23:59:59.000Z
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.
The harmonic oscillator with dissipation within the theory of open quantum systems
A. Isar
2005-08-18T23:59:59.000Z
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.
Chaudhuri, A K
2012-01-01T23:59:59.000Z
In nucleon-nucleon collisions, charged particle's multiplicity fluctuates. We have studied the effect of multiplicity fluctuation on flow harmonics in nucleus-nucleus collision in event-by-event hydrodynamics. Assuming that the charged particle's multiplicity fluctuations are governed by the negative binomial distribution, the Monte-Carlo Glauber model of initial condition is generalised to include the fluctuations. Explicit simulations with the generalised Monte-Carlo Glauber model initial conditions indicate that the multiplicity fluctuations do not have large effect on the flow harmonics.
A. K. Chaudhuri
2013-03-19T23:59:59.000Z
In nucleon-nucleon collisions, charged particle's multiplicity fluctuates. We have studied the effect of multiplicity fluctuation on flow harmonics in nucleus-nucleus collision in event-by-event hydrodynamics. Assuming that the charged particle's multiplicity fluctuations are governed by the negative binomial distribution, the Monte-Carlo Glauber model of initial condition is generalised to include the fluctuations. Explicit simulations with the generalised Monte-Carlo Glauber model initial conditions indicate that the multiplicity fluctuations do not have large effect on the flow harmonics.
A solid-state, harmonic restraint, differential relay for transformer protection
Lowther, Gary Roger
1982-01-01T23:59:59.000Z
Designation Scheme and Test Frequency Application Points . ~ . . $0 viii PAGE 13. VCVS Bandpass Filter . . . . . . . . . ~ 57 lg. Plots of Overcurrent and Harmonic Sections for Various 60 and 120 Hertz AC Inputs at Point A (A-Low 0, Harmonic Filter, B...-High Q) 63 15. Section II and III Outputs for Various 60 and 120 Hertz AC Inputs at Point C . . . 63. 16. Section II and III Outputs for Various 60 and 120 Hertz AC Inputs at Points Bl end B2 6g 17. Section II and III Outputs for Various 60 and 120...
The harmonic impact of electric vehicle battery chargers on residential power distribution
Wang, Y.; O`Connell, R.M. [Univ. of Missouri, Columbia, MO (United States). Dept. of Electrical Engineering; Brownfield, G. [Ameren Services, St. Louis, MO (United States)
1999-11-01T23:59:59.000Z
Electric vehicles (EV), which are powered by battery-driven electric motors, are becoming an ecologically attractive alternative to gasoline driven vehicles. One drawback to them is that the associated battery chargers are power electronic circuits which, because of their non-linear nature, can produce deleterious harmonic effects on the electric utility distribution system. To investigate the harmonic effects of widespread use of EV battery chargers, three different commercially available EV battery chargers are modeled using the injection current method to represent their current waveforms for simulation in a SPICE model of a particular distribution system.
Second harmonic generation in photonic crystal cavities in (111)-oriented GaAs
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 für Festkörperelektronik, Hausvogteiplatz 5-7, D-10117 Berlin (Germany)] [Paul-Drude-Institut für Festkörperelektronik, Hausvogteiplatz 5-7, D-10117 Berlin (Germany)
2013-11-18T23:59:59.000Z
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.
Theoretical study of the dual harmonic system and its application on the CSNS/RCS
Yuan, Yao-Shuo; Xu, Shou-Yan; Yuan, Yue; Wang, Sheng
2015-01-01T23:59:59.000Z
The dual harmonic system has been widely used in high intensity proton synchrotrons to suppress the space charge effect, as well as reduce the beam loss. To investigate the longitudinal beam dynamics in the dual rf system, the potential well, the sub-buckets in the bunch and the multi-solutions of the phase equation have been studied theoretically. Based on these theoretical studis, the optimization of bunching factor and rf voltage waveform are made for the dual harmonic rf system in the upgrade phase of the CSNS/RCS. In the optimization process, the simulation with space charge effect is done by using a newly developed code C-SCSIM.
Position-dependent noncommutative quantum models: Exact solution of the harmonic oscillator
Dine Ousmane Samary
2014-05-31T23:59:59.000Z
This paper is devoted to find the exact solution of the harmonic oscillator in a position-dependent 4-dimensional noncommutative phase space. The noncommutative phase space that we consider is described by the commutation relations between coordinates and momenta: $[\\hat{x}^1,\\hat{x}^2]=i\\theta(1+\\omega_2 \\hat x^2)$, $[\\hat{p}^1,\\hat{p}^2]=i\\bar\\theta$, $[\\hat{x}^i,\\hat{p}^j]=i\\hbar_{eff}\\delta^{ij}$. We give an analytical method to solve the eigenvalue problem of the harmonic oscillator within this deformation algebra.
Huge enhancement of backward second-harmonic generation with slow light in photonic crystals
Iliew, Rumen [Nonlinear Physics Center, Research School of Physics and Engineering, Australian National University, Canberra ACT 0200 (Australia); Institute of Condensed Matter Theory and Solid State Optics, Friedrich-Schiller-Universitaet Jena, Max-Wien-Platz 1, 07743 Jena (Germany); Etrich, Christoph; Pertsch, Thomas [Institute of Applied Physics/Ultra Optics, Friedrich-Schiller-Universitaet Jena, Max-Wien-Platz 1, 07743 Jena (Germany); Lederer, Falk [Institute of Condensed Matter Theory and Solid State Optics, Friedrich-Schiller-Universitaet Jena, Max-Wien-Platz 1, 07743 Jena (Germany); Kivshar, Yuri S. [Nonlinear Physics Center, Research School of Physics and Engineering, Australian National University, Canberra ACT 0200 (Australia)
2010-02-15T23:59:59.000Z
We study theoretically forward and backward second-harmonic generation in a two-dimensional photonic crystal structure made of lithium niobate. The aim of this article is twofold: First, we propose a reliable modal algorithm for describing the light propagation taking into account the vectorial character of the interacting fields as well as the tensorial character of the nonlinearity and verify it by means of the nonlinear finite-difference time-domain method. Second, we propose a photonic crystal where we obtain a giant efficiency increase for backward second-harmonic generation with slow light.
THE UNIQUENESS THEOREM FOR ROTATING BLACK HOLE SOLUTIONS OF SELF-GRAVITATING HARMONIC MAPPINGS
M. Heusler
1995-03-28T23:59:59.000Z
We consider rotating black hole configurations of self-gravitating maps from spacetime into arbitrary Riemannian manifolds. We first establish the integrability conditions for the Killing fields generating the stationary and the axisymmetric isometry (circularity theorem). Restricting ourselves to mappings with harmonic action, we subsequently prove that the only stationary and axisymmetric, asymptotically flat black hole solution with regular event horizon is the Kerr metric. Together with the uniqueness result for non-rotating configurations and the strong rigidity theorem, this establishes the uniqueness of the Kerr family amongst all stationary black hole solutions of self-gravitating harmonic mappings.
Advanced properties of extended plasmas for efficient high-order harmonic generation
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
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 (?0.3–0.5?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.
Itoh, Tatsuo
Output Harmonic Termination Techniques for AlGaN/GaN HEMT Power Amplifiers Using Active Integrated 1200, Los Angeles, CA 90045 Abstract -- In this paper, effects of output harmonic terminations on PAE termination, we observe a substantial increase in PAE and output power. Further, we demonstrate the high
Design of a Low Power 70MHz-110MHz Harmonic Rejection Filter with Class-AB Output Stage
Huang, Shan
2011-08-08T23:59:59.000Z
summation circuit. A RC low pass filter with automatic tuning is designed to further attenuate unwanted harmonics. In this work, the filter's post layout simulation shows -53dB THD and harmonics above 800MHz attenuation of -99dB. The power consumption...
Reid, Matthew
Terahertz radiation and second-harmonic generation from InAs: Bulk versus surface electric-harmonic generation and terahertz radiation emission indicates that the observed dominant surface electric-field-induced contributions Matthew Reid, Igor V. Cravetchi, and Robert Fedosejevs Department of Electrical and Computer
1034 IEEE TRANSACTIONS ON POWER DELIVERY, VOL. 18, NO. 3, JULY 2003 Direct Harmonic Analysis of the
Lehn, Peter W.
. INTRODUCTION THE INTRODUCTION of VSC-based FACTS equipment to a power system offers the potential to improve. This approach has the potential to offer an accurate so- lution, accounting for all harmonics and harmonic limited and not capable of modeling har- Manuscript received September 25, 2002. The author
Chem. Rev. 1994, 94, 107-125 107 Optical Second Harmonic Generation as a Probe of Surface Chemistry
Chem. Rev. 1994, 94, 107-125 107 Optical Second Harmonic Generation as a Probe of Surface Chemistry 109 IV. SHG Measurements of Surface Chemistry 109 VI. Acknowledgments 122 V II.References 122 V. Other Surface SHG Experiments and Future 122 Directions I. Introduction Optical second harmonic generation (SHG
Chu, Shih-I
laser beams Xiao-Min Tong and Shih-I Chu Department of Chemistry, University of Kansas and Kansas Center field and a linearly polarized second-harmonic laser field, in crossed-beam con- figuration second-harmonic field, in crossed-beam configuration. We demonstrate the feasibility of such a scheme
Dickmander, D.L.; Peterson, K.J.
1989-04-01T23:59:59.000Z
The harmonic analysis of the dc-side of an HVDC line transmission requires realistic models of the converters, the dc line, and other relevant equipment. These models must include all important paths for harmonic current, and appropriate sources of harmonic voltage generation. The classical converter modeling technique has been demonstrated to be insufficient in field measurements and analysis of the harmonic spectra found on recent HVDC line transmission. For this reason, a new model of the converter bridge which takes into account the major stray capacitances in the converter (the three-pulse model) has been developed, and is described in detail elsewhere. This paper presents comparisons between the classical and three-pulse calculations for the Intermountain Power Project (IPP) HVDC transmission. The calculation results from the three-pulse model agree favorably with the harmonics found in field measurements.
Kumar, M.; Singhal, H.; Chakera, J. A.; Naik, P. A.; Khan, R. A.; Gupta, P. D. [Laser Plasma Division, Raja Ramanna Centre for Advanced Technology, Indore 452 013, M.P. (India)
2013-07-21T23:59:59.000Z
A study of the spatial coherence of the high order harmonic radiation generated by the interaction of 45 fs Ti:sapphire laser beam with carbon (graphite) plasma plume has been carried out using Young's double slit interferometry. It is observed that the spatial coherence varies with harmonic order, laser focal spot size in plasma plume, and peaks at an optimal spot size. It is also observed that the spatial coherence is higher when the laser pulse is focused before the plasma plume than when focused after the plume, and it decreases with increase in the harmonic order. The optimum laser parameters and the focusing conditions to achieve good spatial coherence with high harmonic conversion have been identified, which is desirable for practical applications of the harmonic radiation.
Systematic studies of two-color pump-induced high-order harmonic generation in plasma plumes
Ganeev, R. A. [Raja Ramanna Centre for Advanced Technology, Indore 452013 (India); Institute of Electronics, Akademgorodok, 33, Dormon Yoli Street, Tashkent 100125 (Uzbekistan); Singhal, H.; Naik, P. A.; Chakera, J. A.; Vora, H. S.; Khan, R. A.; Gupta, P. D. [Raja Ramanna Centre for Advanced Technology, Indore 452013 (India)
2010-11-15T23:59:59.000Z
High-order harmonic generation (HHG) has been studied in various laser-produced plasma plumes using a two-color orthogonally polarized beam with a 12:1 energy ratio between the fundamental and second-harmonic (SH) components. The influence of the relative phase between the fundamental and SH waves on the HHG efficiency has been investigated. Odd and even harmonic generation in plasma plumes containing nanoparticles, fullerenes, carbon nanotubes, and other samples was optimized. The effect of the variation in the SH intensity on the HHG conversion efficiency in carbon aerogel and silver plasma plumes has also been studied. It is shown that by increasing the SH intensity, one can generate only even harmonics by suppressing the odd harmonics.
RRI Energy Inc formerly known as Reliant Energy Inc | Open Energy
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia:FAQ < RAPID Jump to: navigation, search RAPIDColoradosource History View NewInformation RRI Energy Inc
A Virtual Velocity Attractor, Harmonic Potential Approach for Joint planning and control of a UAV
Masoud, Ahmad A.
A Virtual Velocity Attractor, Harmonic Potential Approach for Joint planning and control of a UAV vehicles (UAVs). The method indirectly controls the trajectory of a UAV by regulating its velocity using planner into a well-behaved control signal that can be fed to the actuator of the UAV. I. Introduction
Physics 221B: Solution to HW # 6 1) Born-Oppenheimer for Coupled Harmonic Oscil-
Murayama, Hitoshi
Physics 221B: Solution to HW # 6 1) Born-Oppenheimer for Coupled Harmonic Oscil- lators This problem is meant to convince you of the validity of the Born-Oppenheimer (BO) Approximation through a toy(x3 - x1 - d)2 + 1 2 k(x2 - x3 - d)2 (1) a) Born-Oppenheimer Approximation In the BO approximation we
Mitigation of Voltage and Current Harmonics in Grid-Connected Microgrids
Vasquez, Juan Carlos
Mitigation of Voltage and Current Harmonics in Grid-Connected Microgrids Mehdi Savaghebi1 , Josep M-connected microgrids. Two modes of compensation are considered, i.e. voltage and current compensation modes-electronic interface converter to the utility grid or microgrid. Microgrid is a local grid consisting of DGs, energy
Gentine, Pierre
of the incoming radiation or energy budget noise variability at the surface. Conversely, soil heat flux is shown on the influence of landsurface energy budget errors on the soilABL system. Other numerical studiesHarmonic propagation of variability in surface energy balance within a coupled
Three-Dimensional Unsteady Multi-stage Turbomachinery Simulations using the Harmonic
Jameson, Antony
Three-Dimensional Unsteady Multi-stage Turbomachinery Simulations using the Harmonic Balance-stage turbomachinery problems modeled by the Unsteady Reynolds-Averaged Navier-Stokes (URANS) equations. This time. Turbomachinery flows are naturally unsteady mainly due to the relative motion of rotors and stators
Ratchets Driven by Harmonic and White Noise R. Bartussek, P. Hanggi, a
Lindner, Benjamin
Ratchets Driven by Harmonic and White Noise R. Bartussek, P. HÂ¨anggi, a B. Lindner, and L The synthesis of overdamped Brownian motion in a periodic potenÂ tial which lacks reflection symmetry (ratchet; Colored Noise; Ratchet Dynamics PACS: 05.40.+j; 82.20.Mj; 87.10.+e Preprint submitted to Elsevier Preprint
Reliability of IGBT in a STATCOM for Harmonic Compensation and Power Factor Correction
Tolbert, Leon M.
Reliability of IGBT in a STATCOM for Harmonic Compensation and Power Factor Correction Lakshmi Gopi Oak Ridge, USA. Abstract--With smart grid integration, there is a need to characterize reliability of a power system by including reliability of power semiconductors in grid related applications
Political and Economic Integration in the EU: The Case of Failed Tax Harmonization*
Wolfe, Patrick J.
Political and Economic Integration in the EU: The Case of Failed Tax Harmonization* FABIO. That there was only a limited transfer of tax authority to the EU exemplifies the failure of political and fiscal integration. Using a political economy framework, this article analyzes why the heads of state rejected tax
ENERGY CONCENTRATION FOR 2-DIMENSIONAL RADIALLY SYMMETRIC EQUIVARIANT HARMONIC MAP HEAT FLOWS
Hulshof, Joost
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
A Unique FPGA for the Implementation of Neural Strategies for Identifying Harmonic Distortions
Boyer, Edmond
order harmonics. Injection of compensation currents in the electrical power supply by means of an APF allows sinusoidal current shape recovery as well as reactive power compensation. In the process considerations. Those distortion identification schemes are used in nonlinear loads compensation with Active