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1

Harmonized Emissions Analysis Tool (HEAT) | Open Energy Information  

Open Energy Info (EERE)

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

2

NREL: Energy Analysis: Life Cycle Assessment Harmonization  

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

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

3

NREL: Energy Analysis - Life Cycle Assessment Harmonization  

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

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

4

Harmonic Analysis Errors in Calculating Dipole,  

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

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

5

Norbert Wiener Center for Harmonic Analysis and  

E-Print Network (OSTI)

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

Maryland at College Park, University of

6

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

SciTech Connect

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

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

2012-04-01T23:59:59.000Z

7

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

SciTech Connect

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

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

2012-04-01T23:59:59.000Z

8

Analysis of Emission Shapes  

E-Print Network (OSTI)

Shapes of relative emission sources can be accessed by expanding shapes of correlations at low relative velocities in pair center of mass in Cartesian harmonics. Coefficients of expansion for correlations are related to the respective coefficients of expansion for the sources through one dimensional integral transforms involving properties of pair relative wavefunctions. The methodology is illustrated with analyses of NA49 and PHENIX correlation data.

P. Danielewicz

2007-07-03T23:59:59.000Z

9

Analysis of Emission Shapes  

E-Print Network (OSTI)

Shapes of relative emission sources can be accessed by expanding shapes of correlations at low relative velocities in pair center of mass in Cartesian harmonics. Coefficients of expansion for correlations are related to the respective coefficients of expansion for the sources through one dimensional integral transforms involving properties of pair relative wavefunctions. The methodology is illustrated with analyses of NA49 and PHENIX correlation data.

Danielewicz, P

2007-01-01T23:59:59.000Z

10

Harmonization of initial estimates of shale gas life cycle greenhouse gas emissions for electric power generation  

Science Journals Connector (OSTI)

...and conventional gas are not significantly...harmonized estimates of life cycle GHG emissions...unconventional gas used for electricity...combined cycle turbine (NGCC) compared...explanation of the remaining harmonization...evaluated shale gas LCAs: inclusion of missing life cycle stages...

Garvin A. Heath; Patrick ODonoughue; Douglas J. Arent; Morgan Bazilian

2014-01-01T23:59:59.000Z

11

Harmonization of initial estimates of shale gas life cycle greenhouse gas emissions for electric power generation  

Science Journals Connector (OSTI)

...warming potential (GWP) for methane (28). In addition, we perform...GWP Power plant efficiency (HHV) Coproduct allocation EUR (bcf) CH...Description of published methane emission rates and the harmonization...to all GHG emissions except methane leakage, e.g., CO 2 emissions...

Garvin A. Heath; Patrick ODonoughue; Douglas J. Arent; Morgan Bazilian

2014-01-01T23:59:59.000Z

12

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

SciTech Connect

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

Heath, G.

2012-06-01T23:59:59.000Z

13

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

SciTech Connect

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

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

2012-04-01T23:59:59.000Z

14

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

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

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

15

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

E-Print Network (OSTI)

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

Odam, Kofi

16

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

SciTech Connect

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

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

2012-04-01T23:59:59.000Z

17

Life Cycle GHG Emissions from Conventional Natural Gas Power Generation: Systematic Review and Harmonization (Presentation)  

SciTech Connect

This research provides a systematic review and harmonization of the life cycle assessment (LCA) literature of electricity generated from conventionally produced natural gas. We focus on estimates of greenhouse gases (GHGs) emitted in the life cycle of electricity generation from conventionally produced natural gas in combustion turbines (NGCT) and combined-cycle (NGCC) systems. A process we term "harmonization" was employed to align several common system performance parameters and assumptions to better allow for cross-study comparisons, with the goal of clarifying central tendency and reducing variability in estimates of life cycle GHG emissions. This presentation summarizes preliminary results.

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

2012-12-01T23:59:59.000Z

18

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

E-Print Network (OSTI)

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

Oak Ridge National Laboratory

19

Harmonic inversion analysis of exceptional points in resonance spectra  

E-Print Network (OSTI)

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

Jacob Fuchs; Jrg Main; Holger Cartarius; Gnter Wunner

2014-02-17T23:59:59.000Z

20

Application of harmonic analysis in the measuring technique of corrosion  

SciTech Connect

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

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

1994-08-01T23:59:59.000Z

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


21

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

SciTech Connect

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

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

1994-07-01T23:59:59.000Z

22

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

SciTech Connect

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

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

2012-04-01T23:59:59.000Z

23

Harmonic Analysis of a Static VAR Compensated Mixed Load System.  

E-Print Network (OSTI)

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

Ruckdaschel, James David

2009-01-01T23:59:59.000Z

24

Meta-Analysis of Estimates of Life Cycle Greenhouse Gas Emissions from Concentrating Solar Power: Preprint  

SciTech Connect

In reviewing life cycle assessment (LCA) literature of utility-scale CSP systems, this analysis focuses on clarifying central tendency and reducing variability in estimates of life cycle greenhouse gas (GHG) emissions through a meta-analytical process called harmonization. From 125 references reviewed, 10 produced 36 independent GHG emission estimates passing screens for quality and relevance: 19 for parabolic trough technology and 17 for power tower technology. The interquartile range (IQR) of published GHG emission estimates was 83 and 20 g CO2eq/kWh for trough and tower, respectively, with medians of 26 and 38 g CO2eq/kWh. Two levels of harmonization were applied. Light harmonization reduced variability in published estimates by using consistent values for key parameters pertaining to plant design and performance. Compared to the published estimates, IQR was reduced by 69% and median increased by 76% for troughs. IQR was reduced by 26% for towers, and median was reduced by 34%. A second level of harmonization was applied to five well-documented trough LC GHG emission estimates, harmonizing to consistent values for GHG emissions embodied in materials and from construction activities. As a result, their median was further reduced by 5%, while the range increased by 6%. In sum, harmonization clarified previous results.

Heath, G. A.; Burkhardt, J. J.

2011-09-01T23:59:59.000Z

25

Aviation emission inventory development and analysis  

Science Journals Connector (OSTI)

An up to date and accurate aviation emission inventory is a prerequisite for any detailed analysis of aviation emission impact on greenhouse gases and local air quality around airports. In this paper we present an aviation emission inventory using real ... Keywords: Air traffic, Aviation emission, Emission inventory, Environmental modelling

Viet Van Pham; Jiangjun Tang; Sameer Alam; Chris Lokan; Hussein A. Abbass

2010-12-01T23:59:59.000Z

26

LCA Harmonization  

Open Energy Info (EERE)

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

27

Equivalent Circuit Analysis of Harmonic Distortions in Photodiode  

E-Print Network (OSTI)

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

Yu, Paul K.L.

1998-01-01T23:59:59.000Z

28

Analysis and Design of New Harmonic Mitigation Approaches  

E-Print Network (OSTI)

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

Aeloiza Matus, Eddy 1972-

2012-11-01T23:59:59.000Z

29

Harmonic wavelet analysis of modulated tunable diode laser absorption spectroscopy signals  

E-Print Network (OSTI)

of the direct absorption characteristics of atomic or molecular absorption lines. This is accomplishedHarmonic wavelet analysis of modulated tunable diode laser absorption spectroscopy signals Hong analyses of tunable diode laser absorption spectroscopy signals were performed. The absorption spectroscopy

Cheng, Harry H.

30

Analysis of second harmonic instability for the Chateauguay HVDC/SVC scheme  

SciTech Connect

The Chateauguay HVDC back-to-back scheme with interconnections to the 765 kV transmission to U.S.A. and to Beauharnois generators can exhibit, under certain operating conditions, second harmonic resonance problems. This paper presents a thorough analysis of the problem using an eigenvalue and frequency domain approach. The analysis explains the mechanism of exciting the second harmonic instability by the presence of HVDC converters. The influence of changing the control parameters of the static VAR compensatory at the Chateauguay terminal is also studied. Finally, an assessment is made for the effectiveness of present countermeasure schemes, namely; the auxiliary dc stabilizing controls and the installation of second harmonic filters.

Hammad, A.E. (ABB Power Systems, 5401-Baden (CH))

1992-01-01T23:59:59.000Z

31

Harmonization of initial estimates of shale gas life cycle greenhouse gas emissions for electric power generation  

Science Journals Connector (OSTI)

...Reply to comment on Hydrocarbon emissions characterization...Petron G ( 2012a ) Hydrocarbon emissions characterization...Comment on Hydrocarbon emissions characterization...emissions of methane from combustion or even from tanks...87% (6); HC = heat content of natural...

Garvin A. Heath; Patrick ODonoughue; Douglas J. Arent; Morgan Bazilian

2014-01-01T23:59:59.000Z

32

Analyzing Correlation Functions with Tesseral and Cartesian Spherical Harmonics  

E-Print Network (OSTI)

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

Pawel Danielewicz; Scott Pratt

2006-12-17T23:59:59.000Z

33

Analyzing Correlation Functions with Tesseral and Cartesian Spherical Harmonics  

E-Print Network (OSTI)

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

Danielewicz, P; Danielewicz, Pawel; Pratt, Scott

2006-01-01T23:59:59.000Z

34

Analyzing correlation functions with tesseral and Cartesian spherical harmonics  

SciTech Connect

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

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

2007-03-15T23:59:59.000Z

35

DOE Hydrogen Analysis Repository: Emissions Analysis of Electricity Storage  

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

Emissions Analysis of Electricity Storage with Hydrogen Emissions Analysis of Electricity Storage with Hydrogen Project Summary Full Title: Emissions Analysis of Electricity Storage with Hydrogen Project ID: 269 Principal Investigator: Amgad Elgowainy Brief Description: Argonne National Laboratory examined the potential fuel cycle energy and emissions benefits of integrating hydrogen storage with renewable power generation. ANL also examined the fuel cycle energy use and emissions associated with alternative energy storage systems, including pumped hydro storage (PHS), compressed air energy storage (CAES), and vanadium-redox batteries (VRB). Keywords: Hydrogen; Emissions; Greenhouse gases (GHG); Energy storage; Life cycle analysis Performer Principal Investigator: Amgad Elgowainy Organization: Argonne National Laboratory (ANL)

36

Data Compression and Harmonic Analysis D.L. Donoho, M. Vetterli,  

E-Print Network (OSTI)

, Littlewood­Paley theory, Sampling Theorem. ``Like the vague sighings of a wind at even, That wakes perhaps less familiar to the Information Theory community, growing out of the field of harmonic analysis analysis in this century. Typically, the problems and achievements of this field have involved goals

Donoho, David

37

Data Compression and Harmonic Analysis D.L. Donoho, M. Vetterli,  

E-Print Network (OSTI)

, Littlewood-Paley theory, Sampling Theorem. "Like the vague sighings of a wind at even, That wakes perhaps less familiar to the Information Theory community, growing out of the field of harmonic analysis analysis in this century. Typically, the problems and achievements of this field have involved goals

Donoho, David

38

Harmonization of initial estimates of shale gas life cycle greenhouse gas emissions for electric power generation  

Science Journals Connector (OSTI)

...throughout the fuel cycle (both intentional...production in the price environment of...50). When the effect of coproduct...comparison with other fuel sources...for coal is, on average, only ?5% from...given that the effect of harmonizing...thermal efficiency, fuel heating value...

Garvin A. Heath; Patrick ODonoughue; Douglas J. Arent; Morgan Bazilian

2014-01-01T23:59:59.000Z

39

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

Science Journals Connector (OSTI)

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

1998-01-01T23:59:59.000Z

40

First-order thermal correction to the quadratic response tensor and rate for second harmonic plasma emission  

SciTech Connect

Three-wave interactions in plasmas are described, in the framework of kinetic theory, by the quadratic response tensor (QRT). The cold-plasma QRT is a common approximation for interactions between three fast waves. Here, the first-order thermal correction (FOTC) to the cold-plasma QRT is derived for interactions between three fast waves in a warm unmagnetized collisionless plasma, whose particles have an arbitrary isotropic distribution function. The FOTC to the cold-plasma QRT is shown to depend on the second moment of the distribution function, the phase speeds of the waves, and the interaction geometry. Previous calculations of the rate for second harmonic plasma emission (via Langmuir-wave coalescence) assume the cold-plasma QRT. The FOTC to the cold-plasma QRT is used here to calculate the FOTC to the second harmonic emission rate, and its importance is assessed in various physical situations. The FOTC significantly increases the rate when the ratio of the Langmuir phase speed to the electron thermal speed is less than about 3.

Layden, B.; Cairns, Iver H.; Robinson, P. A. [School of Physics, University of Sydney, Sydney, New South Wales 2006 (Australia); Percival, D. J. [Defence Science and Technology Organisation, P.O. Box 1500, Edinburgh, South Australia 5111 (Australia)

2011-02-15T23:59:59.000Z

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


41

Mission Impossible !? On the Harmonization of National Allocation Plans under the EU Emissions Trading Directive  

Science Journals Connector (OSTI)

Starting in 2005, the EU will implement a CO2 emissions trading scheme. We show that the outspoken objectives ... adjustments to the current prescriptions of the EU emissions trading system in order to achieve ha...

Christoph Bhringer; Andreas Lange

2005-01-01T23:59:59.000Z

42

LINEAR TIME PERIODIC MODELLING OF POWER ELECTRONIC DEVICES FOR POWER SYSTEM HARMONIC ANALYSIS AND SIMULATION  

E-Print Network (OSTI)

LINEAR TIME PERIODIC MODELLING OF POWER ELECTRONIC DEVICES FOR POWER SYSTEM HARMONIC ANALYSIS by simulation. 1. INTRODUCTION The variety and the wide spread use of power electronic devices in the power networks is due to their diverse and multiple functions: compensation, protection and interface

Boyer, Edmond

43

Analysis of crystallographic texture information by the hyperspherical harmonic expansion  

E-Print Network (OSTI)

The field of texture analysis is fundamentally concerned with measuring and analyzing the distribution of crystalline orientations in a given polycrystalline material. Traditionally, the orientation distribution function ...

Mason, Jeremy K. (Jeremy Kyle)

2009-01-01T23:59:59.000Z

44

Positron Emission Tomography Physics, Instrumentation, Data Analysis  

E-Print Network (OSTI)

1 Positron Emission Tomography Physics, Instrumentation, Data Analysis Carl K. Hoh, MD Department fast computer Filtered Back Projection Iterative Reconstruction PET Image Reconstruction #12 PET Scanner Design · Smaller individual crystal size = better spatial resolution · Physical limit

Liu, Thomas T.

45

Harmonization of initial estimates of shale gas life cycle greenhouse gas emissions for electric power generation  

Science Journals Connector (OSTI)

...emissions of utility-scale wind power: Systematic review...workover can refer to well maintenance without hydraulic fracturing...compressor blowdowns Engines/turbines Hydraulic fracturing* Pneumatic...recompletion* Engines/turbines Compressors and compressor...

Garvin A. Heath; Patrick ODonoughue; Douglas J. Arent; Morgan Bazilian

2014-01-01T23:59:59.000Z

46

Harmonization of initial estimates of shale gas life cycle greenhouse gas emissions for electric power generation  

Science Journals Connector (OSTI)

...initial estimates of shale gas life cycle greenhouse gas emissions for electric power generation 10.1073/pnas.1309334111...of unconventional natural gas, particularly shale gas...best-performing coal-fired generation under certain...

Garvin A. Heath; Patrick ODonoughue; Douglas J. Arent; Morgan Bazilian

2014-01-01T23:59:59.000Z

47

Analysis of dc harmonics using the three-pulse model for the intermountain power project HVDC transmission  

SciTech Connect

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.

Dickmander, D.L.; Peterson, K.J.

1989-04-01T23:59:59.000Z

48

Engineering issue study of triple harmonic method for in situ flying height analysis  

Science Journals Connector (OSTI)

In situ flying height testing technology is becoming more and more important in sliderdisk interaction analysis and manufacturing quality control of disk drives and head-related components. Triple harmonic method is a quite promising choice for in situ flying height analysis, compared with other in situ methods reported up to now. This paper reports results of investigations on engineering issues of applying triple harmonic method for in situ flying height analysis. The paper reports results of analysis on the effects of various testing conditions on flying height testing repeatability and accuracy. Results suggest that working at reasonable high channel density and working on the ratio between third and first harmonics will be an advantage in terms of both flying height testing sensitivity and testing repeatability. Comparing with media thickness effect, the gap-length variation among different heads will be important if it is to study flying height difference among different heads and the testing is at high channel density. Also, it is suggested to work at AC erased track, in order to reduce the non-linearity caused by hard transition.

Yipin Zhou; Bo Liu; Lewei Li

2006-01-01T23:59:59.000Z

49

Modeling and analysis of aircraft non-linear components for harmonics analysis  

SciTech Connect

Modern commercial aircraft Electric Power Systems (EPS) include many nonlinear components which produce harmonics. The addition of all the current harmonics could result in a power system with unacceptable levels of voltage distortion. It is important to be able to predict the levels of voltage distortion at early program stages to correct any potential problems and avoid costly redesigns. In this paper the nature and sources of harmonic producing equipment are described. These sources of harmonics and their effect on aircraft power system operation are described. Models for various aircraft non-linear components are developed in this paper. These component models are used in a model of the Boeing 777 EPS which is used to calculate voltage harmonics for various airplane configurations and flight conditions. A description of this model and the models used for various components are given. Tests performed to validate these models are described. Comparison of experimental results with analytical model predictions are given.

Karimi, K.J. [Boeing Computer Services, Seattle, WA (United States); Voss, J. [Boeing Commercial Airplane Group, Seattle, WA (United States)

1995-12-31T23:59:59.000Z

50

Harmonization of initial estimates of shale gas life cycle greenhouse gas emissions for electric power generation  

Science Journals Connector (OSTI)

...production activities to the oil produced from associated...of production in the price environment...for transportation and heating should be...study (51%, higher heating value basis). 1 Olmstead...reductions in natural gas prices for emissions of CO2 from the US power...

Garvin A. Heath; Patrick ODonoughue; Douglas J. Arent; Morgan Bazilian

2014-01-01T23:59:59.000Z

51

Harmonization of initial estimates of shale gas life cycle greenhouse gas emissions for electric power generation  

Science Journals Connector (OSTI)

...thermal efficiency, fuel heating value, power plant...natural gas as a bridge fuel . Clim Change 118 : 609...emissions and freshwater consumption of Marcellus shale gas...following Fig. S1) for the fuel cycle of shale gas...water, and/or oil) Vessel and pipeline blowdowns...

Garvin A. Heath; Patrick ODonoughue; Douglas J. Arent; Morgan Bazilian

2014-01-01T23:59:59.000Z

52

Generation of circularly polarized multiple high-order harmonic emission from two-color crossed laser beams  

E-Print Network (OSTI)

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

Chu, Shih-I

53

Engineering analysis of fugitive particulate matter emissions from cattle feedyards  

E-Print Network (OSTI)

An engineering analysis of the fugitive particulate matter emissions from a feedyard is not simple. The presence of an evening dust peak in concentration measurements downwind of a feedyard complicates the calculation of an average 24-h emission...

Hamm, Lee Bradford

2006-04-12T23:59:59.000Z

54

Abstract Requirement Analysis in Multiagent System Design Scott J. Harmon, Scott A. DeLoach, and Robby  

E-Print Network (OSTI)

instances (i.e. while trying to achieve a particular goal, an event may cause another goal to become activeAbstract Requirement Analysis in Multiagent System Design Scott J. Harmon, Scott A. De-time. Keywords-policy; norms; AOSE; O-MaSE; guidance; I. INTRODUCTION Organization-based multiagent systems

Deloach, Scott A.

55

Harmonic and interharmonic distortion analysis in the grid-connected wind electric generator  

Science Journals Connector (OSTI)

The operation of wind turbines has an impact on the power quality at the connected electric network. The integration of wind electric generators with the power grid becomes a headache for power engineers in several aspects. Harmonic distortion is one of the most important phenomena which affect the grid performance. This paper provides an in-depth discussion on harmonic and interharmonic distortion taking place on the low-voltage side of the wind generator, as well as in the power grid side. A case study, to determine where a significant amount of harmonic currents or voltages exists in the system, is performed using a power quality analyser. From these measurements and subsequent calculations, the levels of harmonics and interharmonics are analysed. It is found that the harmonic distortion is invariably present on the generator side as well as on the grid side, depending on the wind turbine technology.

V. Suresh Kumar; P.S. Kannan

2007-01-01T23:59:59.000Z

56

VEHICLE EMISSIONS AND TRAFFIC MEASURES: EXPLORATORY ANALYSIS OF FIELD  

E-Print Network (OSTI)

VEHICLE EMISSIONS AND TRAFFIC MEASURES: EXPLORATORY ANALYSIS OF FIELD OBSERVATIONS AT SIGNALIZED between vehicle emissions and traffic control measures is an important step toward reducing the potential roadway design and traffic control, have the ability to reduce vehicle emissions. However, current vehicle

Frey, H. Christopher

57

DOE Hydrogen Analysis Repository: MOVES (Motor Vehicle Emission Simulator)  

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

MOVES (Motor Vehicle Emission Simulator) MOVES (Motor Vehicle Emission Simulator) Project Summary Full Title: MOVES (Motor Vehicle Emission Simulator) Previous Title(s): New Generation Mobile Source Emissions Model (NGM) Project ID: 179 Principal Investigator: Margo Oge Brief Description: Estimates emissions for on-road and nonroad sources, multiple pollutants, fine-scale analysis to national inventory estimation. Keywords: Vehicle; transportation; emissions Purpose Estimate emissions for on-road and nonroad sources, cover a broad range of pollutants, and allow multiple scale analysis, from fine-scale analysis to national inventory estimation. When fully implemented MOVES will serve as the replacement for MOBILE. Performer Principal Investigator: Margo Oge Organization: U.S. Environmental Protection Agency

58

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

SciTech Connect

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

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

2013-07-01T23:59:59.000Z

59

Dynamic Analysis of Wind Turbine Planetary Gears Using an Extended Harmonic Balance Approach: Preprint  

SciTech Connect

The dynamics of wind turbine planetary gears with gravity effects are investigated using an extended harmonic balance method that extends established harmonic balance formulations to include simultaneous internal and external excitations. The extended harmonic balance method with arc-length continuation and Floquet theory is applied to a lumped-parameter planetary gear model including gravity, fluctuating mesh stiffness, bearing clearance, and nonlinear tooth contact to obtain the planetary gear dynamic response. The calculated responses compare well with time domain integrated mathematical models and experimental results. Gravity is a fundamental vibration source in wind turbine planetary gears and plays an important role in system dynamics, causing hardening effects induced by tooth wedging and bearing-raceway contacts. Bearing clearance significantly reduces the lowest resonant frequencies of translational modes. Gravity and bearing clearance together lowers the speed at which tooth wedging occurs lower than the resonant frequency.

Guo, Y.; Keller, J.; Parker, R. G.

2012-06-01T23:59:59.000Z

60

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

Science Journals Connector (OSTI)

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

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

2013-04-01T23:59:59.000Z

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


61

Drive Cycle Analysis, Measurement of Emissions and Fuel Consumption...  

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

Drive Cycle Analysis, Measurement of Emissions and Fuel Consumption of a PHEV School Bus Preprint Robb Barnitt and Jeff Gonder To be presented at the SAE 2011 World Congress...

62

Policy Analysis Changing Trends in Sulfur Emissions  

E-Print Network (OSTI)

global warming, but this warming effect could be partially offset by reductions in the emissions of black , A N D H I R O M A S A U E D A # Center for Global and Regional Environmental Research, The University-thirds of Asian SO2. The decline was due to a reduction in industrial coal use, a slow- down of the Chinese

Jacobson, Mark

63

Nonlinear regression analysis of field emission data  

E-Print Network (OSTI)

, the current voltage characteristics are highly nonlinear. These properties have enabled field emission cathodes to be used in applications such as cathodoluminescent displays, vacuum triodes and vacuum diodes. The objective of this thesis was to develop... ballistic transport, submil- limeter wave generation and amplification are also possible using vacuum diodes and triodes. Due to the rapid advance of vacuum microelectronic devices toward commercial applications there exists a need to be able...

Barry, Scott Wilson

2012-06-07T23:59:59.000Z

64

MIT Emissions Prediction and Policy Analysis (EPPA) Model | Open Energy  

Open Energy Info (EERE)

MIT Emissions Prediction and Policy Analysis (EPPA) Model MIT Emissions Prediction and Policy Analysis (EPPA) Model Jump to: navigation, search LEDSGP green logo.png FIND MORE DIA TOOLS This tool is part of the Development Impacts Assessment (DIA) Toolkit from the LEDS Global Partnership. Tool Summary LAUNCH TOOL Name: MIT Emissions Prediction and Policy Analysis (EPPA) Model Agency/Company /Organization: Massachusetts Institute of Technology (MIT) Topics: Analysis Tools Complexity/Ease of Use: Not Available Website: dspace.mit.edu/handle/1721.1/29790 Cost: Free Related Tools IGES GHG Calculator For Solid Waste Energy and Power Evaluation Program (ENPEP) Regional Economic Models, Inc. (REMI) Model ... further results The part of the MIT Integrated Global Systems Model (IGSM) that represents human systems; a recursive-dynamic multi-regional general equilibrium model

65

Econometric analysis of Australian emissions markets and electricity prices  

Science Journals Connector (OSTI)

Abstract Emissions trading schemes aim to reduce the emissions in certain pollutants using a market based scheme where participants can buy and sell permits for these emissions. This paper analyses the efficiency of the two largest schemes in Australia, the NSW Greenhouse Gas Abatement Scheme and the Mandatory Renewable Energy Trading Scheme, through their effect on the electricity prices from 2004 to 2010. We use a long run structural modelling technique for the first time on this market. It provides a practical long-run approach to structural relationships which enable the determination of the effectiveness of the theoretical expectations of these schemes. The generalised forecast error variance decomposition analysis finds that both schemes? emissions prices have little effect on electricity prices. Generalised impulse response function analysis support this finding indicating that when shocks are applied to electricity by the two schemes it returns to equilibrium very quickly. This indicates that these schemes are not having the effect anticipated in their legislation.

Deborah Cotton; Lurion De Mello

2014-01-01T23:59:59.000Z

66

LCA Harmonization | Open Energy Information  

Open Energy Info (EERE)

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

67

Benchmarking Buildings to Prioritize Sites for Emissions Analysis |  

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

Benchmarking Buildings to Prioritize Sites for Emissions Analysis Benchmarking Buildings to Prioritize Sites for Emissions Analysis Benchmarking Buildings to Prioritize Sites for Emissions Analysis October 7, 2013 - 10:54am Addthis YOU ARE HERE Step 2 When actual energy use by building type is known, benchmarking the performance of those buildings to industry averages can help establish those with greatest opportunities for GHG reduction. Energy intensity can be used as a basis for benchmarking by building type and can be calculated using actual energy use, representative buildings, or available average estimates from agency energy records. Energy intensity should be compared to industry averages, such as the Commercial Buildings Energy Consumption Survey (CBECS) or an agency specific metered sample by location. When a program has access to metered data or representative building data,

68

Spherical Harmonic Transform Algorithms  

SciTech Connect

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

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

2008-01-01T23:59:59.000Z

69

1034 IEEE TRANSACTIONS ON POWER DELIVERY, VOL. 18, NO. 3, JULY 2003 Direct Harmonic Analysis of the  

E-Print Network (OSTI)

. 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

Lehn, Peter W.

70

Fuel-Cycle Energy and Emissions Analysis with the GREET Model...  

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

Fuel-Cycle Energy and Emissions Analysis with the GREET Model Fuel-Cycle Energy and Emissions Analysis with the GREET Model 2009 DOE Hydrogen Program and Vehicle Technologies...

71

NREL: Transportation Research - Emissions and Fuel Economy Analysis  

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

greenhouse gas and pollutant emissions by advancing the development of new fuels and engines that deliver both high efficiency and reduced emissions. Emissions that result in...

72

The 2dF Galaxy Redshift Survey: Spherical Harmonics analysis of fluctuations in the final catalogue  

E-Print Network (OSTI)

We present the result of a decomposition of the 2dFGRS galaxy overdensity field into an orthonormal basis of spherical harmonics and spherical Bessel functions. Galaxies are expected to directly follow the bulk motion of the density field on large scales, so the absolute amplitude of the observed large-scale redshift-space distortions caused by this motion is expected to be independent of galaxy properties. By splitting the overdensity field into radial and angular components, we linearly model the observed distortion and obtain the cosmological constraint Omega_m^{0.6} sigma_8=0.46+/-0.06. The amplitude of the linear redshift-space distortions relative to the galaxy overdensity field is dependent on galaxy properties and, for L_* galaxies at redshift z=0, we measure beta(L_*,0)=0.58+/-0.08, and the amplitude of the overdensity fluctuations b(L_*,0) sigma_8=0.79+/-0.03, marginalising over the power spectrum shape parameters. Assuming a fixed power spectrum shape consistent with the full Fourier analysis produces very similar parameter constraints.

Will J. Percival; Daniel Burkey; Alan Heavens; Andy Taylor; Shaun Cole; John A. Peacock; Carlton M. Baugh; Joss Bland-Hawthorn; Terry Bridges; Russell Cannon; Matthew Colless; Chris Collins; Warrick Couch; Gavin Dalton; Roberto De Propris; Simon P. Driver; George Efstathiou; Richard S. Ellis; Carlos S. Frenk; Karl Glazebrook; Carole Jackson; Ofer Lahav; Ian Lewis; Stuart Lumsden; Steve Maddox; Peder Norberg; Bruce A. Peterson; Will Sutherland; Keith Taylor

2004-06-23T23:59:59.000Z

73

Harmonic engine  

DOE Patents (OSTI)

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

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

2014-08-19T23:59:59.000Z

74

Emissions  

Office of Scientific and Technical Information (OSTI)

the extra emissions that are generated from manufacturing the material used to make CNG tanks); they can amount tc more than 2% of the emissions from 32 the fuel production and...

75

Emissions trading between Russia and the European Union: a CGE analysis of potentials and impacts  

Science Journals Connector (OSTI)

A computable general equilibrium analysis of emissions trading between Russia and the European Union (EU ... s future economic development. We find that emissions trading, besides being beneficial for the EU cou...

Roman Lokhov; Heinz Welsch

2008-03-01T23:59:59.000Z

76

Carbon Dioxide Emissions in the U.S. Economy: A Structural Decomposition Analysis  

Science Journals Connector (OSTI)

This paper provides an empirical analysis of the impact of various influences on carbon dioxide emissions. It incorporates methodological refinements of input-output...2 emissions in the U.S. over the 1972 ... as...

Stephen D. Casler; Adam Rose

1998-04-01T23:59:59.000Z

77

Building Distributed Energy Performance Optimization for China a Regional Analysis of Building Energy Costs and CO2 Emissions  

E-Print Network (OSTI)

Analysis of Building Energy Costs and CO 2 Emissions WeiAnalysis of Building Energy Costs and CO 2 Emissions Weiwhich minimizes building energy cost or CO 2 emissions, or a

Feng, Wei

2013-01-01T23:59:59.000Z

78

Zero-Emission Vehicle Scenario Cost Analysis Using A Fuzzy Set-Based Framework  

E-Print Network (OSTI)

Fuel Cell Vehicle Analysis of Energy Use, Emissions, and Cost,"Cost Analysis of Conventional and Fuel Cell/Battery Powered Urban Passenger Vehicles,cost analysis of several types of AFVs, but did not include fuel cell vehicles

Lipman, Timothy Edward

1999-01-01T23:59:59.000Z

79

Zero-Emission Vehicle Scenario Cost Analysis Using A Fuzzy Set-Based Framework  

E-Print Network (OSTI)

Fuel Cell Vehicle Analysis of Energy Use, Emissions, and Cost,&Cost Analysis of Conventional and Fuel Cell/Battery Powered Urban Passenger Vehicles,cost analysis of several types of AFV s, but did not include fuel cell vehicles

Lipman, Timothy E.

1999-01-01T23:59:59.000Z

80

Numerical analysis of the coherent radiation emission by two stacked Josephson flux-flow oscillators  

SciTech Connect

The numerical investigation of the radiation emission by a system of two magnetically coupled, long Josephson junctions is reported. Time-dependent synchronized voltage response in the flux-flow regime is analyzed for the case of in-phase and out-of-phase oscillations in the junctions. Simulations show that Josephson junctions operating in the in-phase flux-flow mode may generate rf radiation power by a factor of more than 4 larger than that of a single Josephson junction. The radiation in the out-of-phase flux-flow mode is characterized by nearly completely suppressed amplitudes of odd harmonics and considerably damped even harmonics as compared to that of a single barrier junction. The dependence of the radiation power on the parameter spread between the junctions is investigated. The advantages of using stacked Josephson junctions as oscillators for the sub-mm wave band are discussed. {copyright} {ital 1996 American Institute of Physics.}

Wallraff, A.; Goldobin, E.; Ustinov, A.V. [Institute of Thin Film and Ion Technology, Research Center Juelich (KFA), D-52425 (Germany)] [Institute of Thin Film and Ion Technology, Research Center Juelich (KFA), D-52425 (Germany)

1996-12-01T23:59:59.000Z

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


81

Analysis of emission right prices in greenhouse gas emission trading via agent-based model  

Science Journals Connector (OSTI)

This paper proposes a participant nation model for international emission trading; adaptive agents are used to explore the conditions under which an emission trading market is successful. In this study, the participation nation models with and without ... Keywords: Agent-Based Modeling, Compliance Mechanism, Emissions Trading, Kyoto Protocol, Reinforcement Learning

Tomohiro Nakada; Keiki Takadama; Shigeyoshi Watanabe

2013-05-01T23:59:59.000Z

82

Abstract--This paper presents the harmonic analysis of offshore wind farm (OWF) models with full converters  

E-Print Network (OSTI)

converters represented as harmonic sources and measurement data on the point of common coupling (PCC) during results are compared with representative measurement data obtained from measurement campaign done in an OWF situated in United Kingdom. The problems and limitations related to present standards and practice

Bak, Claus Leth

83

A Sectoral Prospective Analysis of CO2 Emissions in China, USA and France, 2010-2050  

E-Print Network (OSTI)

1 A Sectoral Prospective Analysis of CO2 Emissions in China, USA and France, 2010-2050 Pascal da mitigation targets for CO2 emissions, which reflect their own specific situations. In this article, scenarios for CO2 emissions up to 2050 are set up for three representative countries: the United States of America

Boyer, Edmond

84

Policy Design and Performance of Emissions Trading Markets: An Adaptive Agent-Based Analysis  

Science Journals Connector (OSTI)

Policy Design and Performance of Emissions Trading Markets: An Adaptive Agent-Based Analysis ... Emissions trading is considered to be a cost-effective environmental economic instrument for pollution control. ... However, the pilot emissions trading programs in China have failed to bring remarkable success in the campaign for pollution control. ...

Zhang Bing; Yu Qinqin; Bi Jun

2010-06-30T23:59:59.000Z

85

Life Cycle Analysis on Greenhouse Gas (GHG) Emissions of Marcellus Shale Gas Supporting Information  

E-Print Network (OSTI)

Life Cycle Analysis on Greenhouse Gas (GHG) Emissions of Marcellus Shale Gas Supporting Information 1. GHG Emissions Estimation for Production of Marcellus Shale Gas 1.1 Preparation of Well Pad The greenhouse gas (GHG) emissions resulting from the preparation of well pad consist of two parts: the carbon

Jaramillo, Paulina

86

Modeling aviation's global emissions, uncertainty analysis, and applications to policy  

E-Print Network (OSTI)

(cont.) fuel burn results below 3000 ft. For emissions, the emissions indices were the most influential uncertainties for the variance in model outputs. By employing the model, this thesis examined three policy options for ...

Lee, Joosung Joseph, 1974-

2005-01-01T23:59:59.000Z

87

Flame Analysis Techniques for Particulate Emissions Development of GDI Engines  

Science Journals Connector (OSTI)

What is required to achieve engine out emissions of gasoline direct injection (GDI) engines at particle number (PN) target...?. ? ...

Dr. Hans-Michael Koegeler; Dipl.-Ing. (FH) Khai Vidmar

2014-05-01T23:59:59.000Z

88

Location Quotient EIO-LCA Method for Carbon Emission Analysis  

Science Journals Connector (OSTI)

Promoting environmentally conscious energy policies to reduce carbon emissions is a mutual duty of the international community. Several cities or government regions have implemented strategies and means to reduce...

Amy J.C. Trappey; Charles V. Trappey

2013-01-01T23:59:59.000Z

89

Optimization of high-order harmonic generation by genetic algorithm and wavelet time-frequency analysis of quantum dipole emission  

E-Print Network (OSTI)

-order har- monic generation ~HHG! of orders as high as 300 has been observed @5,6#, with photon energies in excess of 500 eV. A novel concept of intra-atomic phase matching has been recently introduced, allowing the enhancement of the inten- sity of a..., as shown in Fig. 2, the major time domain contributing to the total har- monic intensity is the central part of the laser pulse with significant field intensity ~for example, between 24 to 14 optical cycles!. Beyond this central time regime, the har- monic...

Chu, Xi; Chu, Shih-I

2001-07-13T23:59:59.000Z

90

ELECTRICAL SIMULATION METHODOLOGY DEDICATED TO EMC DIGITAL CIRCUITS EMISSIONS ANALYSIS ON PCB  

E-Print Network (OSTI)

ELECTRICAL SIMULATION METHODOLOGY DEDICATED TO EMC DIGITAL CIRCUITS EMISSIONS ANALYSIS ON PCB Jean integrated on closer structures, and the upsurge of electric/electromagnetic couplings in a large frequency optimise an electrical models library dedicated to the simulations of EMC emissions of digital integrated

Paris-Sud XI, Université de

91

Opportunities for reducing volatile organic compound emissions in manufacturing office furniture partitions: a feasibility analysis  

Science Journals Connector (OSTI)

A feasibility analysis is reported of reduction opportunities for volatile organic compound (VOC) emissions in manufacturing office furniture partitions. The pollution prevention (P2) methodology as defined by the Ontario Ministry of the Environment ... Keywords: emissions, manufacturing, office furniture, pollution prevention, volatile organic compound

Frank S. Luisser; Marc A. Rosen

2009-02-01T23:59:59.000Z

92

Changes of energy-related GHG emissions in China: An empirical analysis from sectoral perspective  

Science Journals Connector (OSTI)

Abstract In order to better understand sectoral greenhouse gas (GHG) emissions in China, this study utilized a logarithmic mean Divisia index (LMDI) decomposition analysis to study emission changes from a sectoral perspective. Based on the decomposition results, recently implemented policies and measures for emissions mitigation in China were evaluated. The results show that for the economic sectors, economic growth was the dominant factor in increasing emissions from 1996 to 2011, whereas the decline in energy intensity was primarily responsible for the emission decrease. As a result of the expansion of industrial development, economic structure change also contributed to growth in emissions. For the residential sector, increased emissions were primarily driven by an increase in per-capita energy use, which is partially confirmed by population migration. For all sectors, the shift in energy mix and variation in emission coefficient only contributed marginally to the emissions changes. The decomposition results imply that energy efficiency policy in China has been successful during the past decade, i.e., Top 1000 Priorities, Ten-Key Projects programs, the establishment of fuel consumption limits and vehicle emission standards, and encouragement of efficient appliances. Moreover, the results also indicate that readjusting economic structure and promoting clean and renewable energy is urgently required in order to further mitigate emissions in China.

Xianshuo Xu; Tao Zhao; Nan Liu; Jidong Kang

2014-01-01T23:59:59.000Z

93

An analysis of energy-related greenhouse gas emissions in the Chinese iron and steel industry  

Science Journals Connector (OSTI)

With China's increasing pressures on reducing greenhouse gas (GHG) emission, Chinese iron and steel industry (ISI) is facing a great challenge. In this paper, we address the energy-related GHG emission trajectories, features, and driving forces in Chinese ISI for 20012010. First, energy related GHG inventory for ISI is made for both scope 1 (direct emissions) and scope 2 (including imported electricity emission). Then, the driving forces for such emission changes are explored by utilizing the method of logarithmic mean Divisa index (LMDI) decomposition analysis. Results indicate that Chinese ISI experienced a rapid growth of energy related GHG emission at average annual growth rate of 70milliontons CO2e. Production scale effect is the main driving factor for energy related GHG emission increase in Chinese ISI, while energy intensity effect and emission factor change effect offset the total increase and energy structure has marginal effect. Construction, manufacture of general purpose and special purpose machinery and manufacture of transport equipment sectors are main sectors for embodied emissions, amounting for more than 75% of the total embodied emissions from Chinese ISI. Such research findings propose that a detailed consideration can help make appropriate polices for mitigating ISI's energy-related GHG emission.

Yihui Tian; Qinghua Zhu; Yong Geng

2013-01-01T23:59:59.000Z

94

An Analysis of PM and NOx Train Emissions in the Alameda Corridor, CA  

E-Print Network (OSTI)

Authority. Number of Trains Running on the Alameda Corridor.An Analysis of PM and NO x Train Emissions in the Alamedaefficient than trucks, trains contribute heavily to regional

Sangkapichai, Mana; Saphores, Jean-Daniel M; Ritchie, Stephen G.; You, Soyoung Iris; Lee, Gunwoo

2008-01-01T23:59:59.000Z

95

The MIT Emissions Prediction and Policy Analysis (EPPA) Model: Version 4  

E-Print Network (OSTI)

The Emissions Prediction and Policy Analysis (EPPA) model is the part of the MIT Integrated Global Systems Model (IGSM) that represents the human systems. EPPA is a recursive-dynamic multi-regional general equilibrium model ...

Paltsev, Sergey.

96

The MIT Emissions Prediction and Policy Analysis (EPPA) model : revisions, sensitivities, and comparisons of results  

E-Print Network (OSTI)

The Emissions Prediction and Policy Analysis (EPPA) model is a component of the MIT Integrated Earth Systems Model (IGSM). Here, we provide an overview of the model accessible to a broad audience and present the detailed ...

Babiker, Mustafa H.M.; Reilly, John M.; Mayer, Monika.; Eckaus, Richard S.; Sue Wing, Ian.; Hyman, Robert C.

97

A Forward Looking Version of the MIT Emissions Prediction and Policy Analysis (EPPA) Model  

E-Print Network (OSTI)

This paper documents a forward looking multi-regional general equilibrium model developed from the latest version of the recursive-dynamic MIT Emissions Prediction and Policy Analysis (EPPA) model. The model represents ...

Babiker, Mustafa M.H.

98

Well-to-Wheels Analysis of Advanced Fuel/Vehicle Systems- A North American Study of Energy Use, Greenhouse Gas Emissions, and Criteria Pollutant Emissions  

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

A complete vehicle fuel-cycle analysis, commonly called a well-to-wheels (WTW) analysis that examines the use and emissions associated with fuel production (or well-to-tank [WTT]) activities and energy use and emissions associated with vehicle operation (or tank-to-wheels [TTW]) activities.

99

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

SciTech Connect

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

Not Available

2013-06-01T23:59:59.000Z

100

Background and Reflections on the Life Cycle Assessment Harmonization Project  

SciTech Connect

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

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

2012-04-01T23:59:59.000Z

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


101

Multivariate analysis of exhaust emissions from heavy-duty diesel fuels  

SciTech Connect

Particulate and gaseous exhaust emission phases from running 10 diesel fuels on two makes of heavy-duty diesel engines were analyzed with respect to 63 chemical descriptors. Measurements for one of the fuels were also made in the presence of an exhaust aftertreatment device. The variables included 28 polycyclic aromatic compounds (PAC), regulated pollutants (CO, HC, NO{sub x}, particles), and 19 other organic and inorganic exhaust emission components. Principal components analysis (PCA) was applied for the statistical exploration of the obtained data. In addition, relationships between chemical (12 variables) and physical (12 variables) parameters of the fuels to the exhaust emissions were derived using partial least squares (PLS) regression. Both PCA and PLS models were derived for the engine makes separately. The PCA showed that the most descriptive exhaust emission factors from these diesel fuels included fluoranthene as a representative of PAC, the regulated pollutants, sulfates, methylated pyrenes, and monoaromatics. Exhaust emissions were significantly decreased in the presence of an exhaust aftertreatment device. Both engine makes exhibited similar patterns of exhaust emissions. Discrepancies were observed for the exhaust emissions of CO{sub 2} and oil-derived soluble organic fractions, owing to differences in engine design. The PLS analysis showed a good correlation of exhaust emission of the regulated pollutants and PAC with the contents of PAC in the fuels and the fuel aromaticity. 41 refs., 6 figs., 6 tabs.

Sjoegren, M.; Ulf, R.; Li, H.; Westerholm, R. [Stockholm Univ. (Sweden)

1996-01-01T23:59:59.000Z

102

Measuring gas emissions from livestock buildings: A review on uncertainty analysis and error sources  

Science Journals Connector (OSTI)

Measuring gaseous and particulate emissions from livestock houses has been the subject of intensive research over the past two decades. Currently, there is general agreement regarding appropriate methods to measure emissions from mechanically ventilated buildings. However, measuring emissions from naturally ventilated buildings remains an elusive target primarily because there is no reference method for measuring building ventilation rate. Ventilation rates and thus building emissions estimates for naturally ventilated buildings are likely to contain greater errors compared with those from mechanically ventilated buildings. This work reviews the origin and magnitude of errors associated with emissions from naturally ventilated buildings as compared to those typically found in mechanical ventilation. Firstly, some general concepts of error analysis are detailed. Then, typical errors found in the literature for each measurement technique are reviewed, and potential sources of relevant systematic and random errors are identified. The emission standard uncertainty in mechanical ventilation is at best 10% or more of the measured value, whereas in natural ventilation it may be considerably higher and there may also be significant unquantifiable biases. A reference method is necessary to obtain accurate emissions estimates, and for naturally ventilated structures this suggests the need for a new means of ventilation measurement. The results obtained from the analysis of information in this review will be helpful to establish research priorities, and to optimize research efforts in terms of quality of emission measurements.

Salvador Calvet; Richard S. Gates; GuoQiang Zhang; Fernando Estells; Nico W.M. Ogink; Sren Pedersen; Daniel Berckmans

2013-01-01T23:59:59.000Z

103

CHBE 484: Term Report Greenhouse Gas Emissions Analysis  

E-Print Network (OSTI)

.59 tonnes of CO2 will need to be eliminated in order to reduce the projected total carbon emissions of 2020 in carpooling, and the implementation of SkyTrain with increased carpooling. From literature the carbon intensity of cars, conventional and trolley buses, and SkyTrains are found to be 286.0 g/CO2, 1752.0 g/CO2

104

Greenhouse gas emissions control by economic incentives: Survey and analysis  

SciTech Connect

This paper presents a survey of issues and concerns raised in recent literature on the application of market-based approaches to greenhouse effect policy with an emphasis on tradeable emission permits. The potential advantages of decentralized decision-making -- cost-effectiveness or allocation efficiency, stimulation of innovations, and political feasibility are discussed. The potential difficulties of data recording, monitoring, enforcement, and of creating viable emission permit contracts and markets are examined. Special attention is given to the problem of designing a greenhouse effect policy that is cost-effective over time, a problem that has been given little attention to date. Proposals to reduce or stabilize greenhouse gas emission (especially CO{sub 2}) in the short run require high carbon tax rates or permit prices and impose heavy adjustment costs on the fossil fuel industry. A more cost-effective time path of permit prices is proposed that achieves the same long-run climate change stabilization goals. 21 refs., 3 figs.

South, D.W.; Kosobud, R.F.; Quinn, K.G.

1991-01-01T23:59:59.000Z

105

Greenhouse gas emissions control by economic incentives: Survey and analysis  

SciTech Connect

This paper presents a survey of issues and concerns raised in recent literature on the application of market-based approaches to greenhouse effect policy with an emphasis on tradeable emission permits. The potential advantages of decentralized decision-making -- cost-effectiveness or allocation efficiency, stimulation of innovations, and political feasibility are discussed. The potential difficulties of data recording, monitoring, enforcement, and of creating viable emission permit contracts and markets are examined. Special attention is given to the problem of designing a greenhouse effect policy that is cost-effective over time, a problem that has been given little attention to date. Proposals to reduce or stabilize greenhouse gas emission (especially CO{sub 2}) in the short run require high carbon tax rates or permit prices and impose heavy adjustment costs on the fossil fuel industry. A more cost-effective time path of permit prices is proposed that achieves the same long-run climate change stabilization goals. 21 refs., 3 figs.

South, D.W.; Kosobud, R.F.; Quinn, K.G.

1991-12-31T23:59:59.000Z

106

Further Sensitivity Analysis of Hypothetical Policies to Limit Energy-Related Carbon Dioxide Emissions  

Gasoline and Diesel Fuel Update (EIA)

Further Sensitivity Analysis of Hypothetical Policies to Limit Energy-Related Carbon Dioxide Emissions Supplement to the Annual Energy Outlook 2013 July 2013 Independent Statistics & Analysis www.eia.gov U.S. Department of Energy Washington, DC 20585 U.S. Energy Information Administration | Further Sensitivity Analysis of Hypothetical Policies to Limit Energy-Related Carbon Dioxide Emissions i This report was prepared by the U.S. Energy Information Administration (EIA), the statistical and analytical agency within the U.S. Department of Energy. By law, EIA's data, analyses, and forecasts are independent of approval by any other officer or employee of the United States Government. The views

107

Analysis of Emissions Calculators for a National Center of Excellence on Displaced Emissions Reductions (CEDER)  

E-Print Network (OSTI)

; provide technical support and customized analysis for state and local agencies seeking to estimate the environmental benefits from clean energy policies and programs; and document how a user-friendly tool, based on e2Calc, can be used by clients to fulfill...

Im, P.; Haberl, J. S.; Culp, C.; Yazdani, B.

2008-07-18T23:59:59.000Z

108

Monopole vector spherical harmonics  

Science Journals Connector (OSTI)

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

Erick J. Weinberg

1994-01-15T23:59:59.000Z

109

Carbon dioxide emissions intensity of Portuguese industry and energy sectors: A convergence analysis and econometric approach  

Science Journals Connector (OSTI)

Abstract Given the relevance of energy and pollution issues for industrialised countries and the importance of industry and energy sectors to the achievement of their economic and environmental goals, it is important to know if there is a common pattern of emissions intensity, fuel intensity and energy intensity, between industries, to know if it justifies a more specific application of energy policies between sectors, which sectors have the greatest potential for reducing energy use and which are the long term effects of those specific variables on the mitigation of emissions. We found that although there is literature on decomposition of effects that affect emissions, the study of the convergence and of the relationships between these variables does not include ratios or effects that result from the decomposition analysis. Thus, the above questions are not answered, much less for the Portuguese reality. The purpose of this paper is to study: (i) the existence of convergence of some relevant ratios as Carbon Dioxide (CO2) emissions intensity, CO2 emissions by fossil fuel consumption, fossil fuel intensity, energy intensity and economic structure, between industry and energy sectors in Portugal, and (ii) the influence that the consumption of fossil fuels, the consumption of aggregate energy and GDP have on CO2 emissions, and the influence that the ratios in which CO2 emissions intensity decomposes can affect that variable, using an econometric approach, namely Panel corrected standard errors estimator. We concluded that there is sigma convergence for all ratios with exception of fossil fuel intensity. Gamma convergence verifies for all ratios, with exception of CO2 emissions by fossil fuel. From the econometric approach we concluded that the considered variables have a significant importance in explaining CO2 emissions and CO2 emissions intensity.

Victor Moutinho; Margarita Robaina-Alves; Jorge Mota

2014-01-01T23:59:59.000Z

110

Energy intensities and CO2 emissions in Catalonia: a SAM analysis  

Science Journals Connector (OSTI)

In this paper, we estimate sectoral energy intensities and CO2 emissions for the Catalonian economy. In order to evaluate energy intensities, we use the SAM (Social Accounting Matrix) multiplier analysis applied to a SAM of the economy. CO2 emissions are estimated by means of the Leontief input-output submodel of the SAM, together with a table of coefficients of emissions per unit of monetary expenditures. This new methodology allows us to dispense with energy input-output tables for the base period. Our results are of the same order of magnitude as others obtained by physical measurement methods. We also simulate how changes in demand and energy energy efficiency parameters may affect CO2 emissions for the economy.

Antonio Manresa; Ferran Sancho

2004-01-01T23:59:59.000Z

111

Carbon dioxide emissions and governance: A nonparametric analysis for the G-20  

Science Journals Connector (OSTI)

Abstract This paper applies nonparametric estimators to examine the carbon dioxide emissionsgovernance relationship. By using data for the twenty largest economies (Group of twenty, G-20) the dynamics of the considered relationship are analyzed for the time period 19962010. Six governance measures are included in our analysis (Voice and Accountability, Political Stability and Absence of Violence, Government Effectiveness, Regulatory Quality, Rule of Law and Control of Corruption) as have been defined by the World Bank. The empirical findings reveal a high nonlinear relationship between countries' carbon dioxide emissions and the examined governance measures. The results reveal significant differences on the number of governance measures influencing countries' carbon dioxide emission levels. It is evident that these differences are subject to countries' specific regional and development variations. Finally, it appears that increasing the quality of countries' different governance factors does not always result to lower carbon dioxide emission levels.

George E. Halkos; Nickolaos G. Tzeremes

2013-01-01T23:59:59.000Z

112

Comparative Analysis of Modeling Studies on China's Future Energy and Emissions Outlook  

SciTech Connect

The past decade has seen the development of various scenarios describing long-term patterns of future Greenhouse Gas (GHG) emissions, with each new approach adding insights to our understanding of the changing dynamics of energy consumption and aggregate future energy trends. With the recent growing focus on China's energy use and emission mitigation potential, a range of Chinese outlook models have been developed across different institutions including in China's Energy Research Institute's 2050 China Energy and CO2 Emissions Report, McKinsey & Co's China's Green Revolution report, the UK Sussex Energy Group and Tyndall Centre's China's Energy Transition report, and the China-specific section of the IEA World Energy Outlook 2009. At the same time, the China Energy Group at Lawrence Berkeley National Laboratory (LBNL) has developed a bottom-up, end-use energy model for China with scenario analysis of energy and emission pathways out to 2050. A robust and credible energy and emission model will play a key role in informing policymakers by assessing efficiency policy impacts and understanding the dynamics of future energy consumption and energy saving and emission reduction potential. This is especially true for developing countries such as China, where uncertainties are greater while the economy continues to undergo rapid growth and industrialization. A slightly different assumption or storyline could result in significant discrepancies among different model results. Therefore, it is necessary to understand the key models in terms of their scope, methodologies, key driver assumptions and the associated findings. A comparative analysis of LBNL's energy end-use model scenarios with the five above studies was thus conducted to examine similarities and divergences in methodologies, scenario storylines, macroeconomic drivers and assumptions as well as aggregate energy and emission scenario results. Besides directly tracing different energy and CO{sub 2} savings potential back to the underlying strategies and combination of efficiency and abatement policy instruments represented by each scenario, this analysis also had other important but often overlooked findings.

Zheng, Nina; Zhou, Nan; Fridley, David

2010-09-01T23:59:59.000Z

113

Analysis of field emission characteristics of hydrogen-adsorbed silicon surface  

E-Print Network (OSTI)

Analysis of field emission characteristics of hydrogen-adsorbed silicon surface Sung Ho Jo, Byung of the Fowler­ Nordheim plot for a hydrogen-adsorbed silicon field emitter are smaller than those for a clean account of the change of surface potential barrier due to the polarization of adsorbed hydrogen atom

Lee, Jong Duk

114

Optical harmonic generator  

DOE Patents (OSTI)

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

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

1985-01-01T23:59:59.000Z

115

Optical harmonic generator  

DOE Patents (OSTI)

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

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

1982-06-10T23:59:59.000Z

116

Cascaded Cerenkov third-harmonic generation in random quadratic media  

SciTech Connect

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

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

2011-12-12T23:59:59.000Z

117

Quantum Mechanical Search and Harmonic Perturbation  

E-Print Network (OSTI)

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

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

2007-02-01T23:59:59.000Z

118

Meta-Analysis of Estimates of Life Cycle GHG Emissions from Electricity  

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

Meta-Analysis of Estimates of Life Cycle GHG Emissions from Electricity Meta-Analysis of Estimates of Life Cycle GHG Emissions from Electricity Generation Technologies Speaker(s): Garvin Heath Date: April 11, 2011 - 10:00am Location: 90-3075 Seminar Host/Point of Contact: Eric Masanet One barrier to the full support and deployment of alternative energy systems and the development of a sustainable energy policy is the lack of robust conclusions about the life cycle environmental impacts of energy technologies. A significant number of life cycle assessments (LCA) of energy technologies have been published, far greater than many are aware. However, there is a view held by many decision-makers that the state of the science in LCA of energy technologies is inconclusive because of perceived and real variability and uncertainty in published estimates of life cycle

119

E-Print Network 3.0 - atomic emission analysis Sample Search...  

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

emission... cool- ing. The spontaneous emission events produce unpre- dictable changes in atomic momenta so... of absorption and emission can cause a large change of the ......

120

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

SciTech Connect

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

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

2001-09-03T23:59:59.000Z

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


121

Life-cycle energy and emission analysis of power generation from forest biomass  

Science Journals Connector (OSTI)

Abstract Forest harvest residues, which include limbs, branches, and tree tops, have the potential to generate energy. This paper uses a life-cycle assessment to determine the energy input-to-output ratios for each unit operation in the use of these residues for power generation. Two preparation options for obtaining the biomass were evaluated. For Option 1, the forest residues were chipped at the landing, while for Option 2 they were bundled and chipped at the power plant. Energy use and greenhouse gas (GHG) emissions were found for power plants sizes ranging from 10 to 300MW. For power plants with capacities greater than 30MW, the transportation of either bundles or woodchips to the power plant used the most energy, especially at larger power plant sizes. Option 1 used less energy than Option 2 for all power plant sizes, with the difference between the two becoming smaller for larger power plants. For the life-cycle GHG emissions, Option 1 ranges from 14.71 to 19.51g-CO2eq/kWh depending on the power plant size. Option 2 ranges from 21.42 to 20.90g-CO2eq/kWh. The results are not linear and are close to equal at larger power plant sizes. The GHG emissions increase with increasing moisture content. For a 300MW power plant with chipping at the landing, the GHG emissions range from 11.17 to 22.24g-CO2eq/kWh for moisture contents from 15% to 50%. The sensitivity analysis showed both energy use and GHG emissions are most sensitive to moisture content and then plant lifetime. For the equipment, both the energy use and GHG emissions are most sensitive to changes in the fuel consumption and load capacity of the chip van and the log-haul truck used to transport either bundles or wood chips to the power plant.

Amit Thakur; Christina E. Canter; Amit Kumar

2014-01-01T23:59:59.000Z

122

Combustion, performance and emission analysis of diesel engine fuelled with methyl esters of Pongamia oil  

Science Journals Connector (OSTI)

The methyl esters of vegetable oils, known as biodiesel are increasingly becoming popular because of their low environmental impact and potential as a green alternative fuel for diesel engine, and that they would not require significant modification of existing engine hardware. Methyl ester of Pongamia oil (PME) is derived through transesterification process. Experimental investigations have been carried out to examine properties, performance and emissions of different blends (B00, B20, B40, B60, B80 and B100) of PME comparison to diesel. A computer assisted single cylinder constant speed water cooled four stroke direct diesel engine (5 HP), which is commonly used in the agricultural sector for driving the pumps and small electrical generators is selected for the experimental investigation. The performance, emissions and combustion characteristics are analysed. The combustion parameters considered for this analysis are cylinder pressure and rate of heat release. The brake thermal efficiency is slightly reduced and hydrocarbon, carbon monoxide and smoke emissions in the exhaust are reduced when fuelled with methyl esters compared to diesel. But the NOx emissions are high when fuelled with methyl esters compared to diesel. [Received: December 11, 2009; Accepted: March 21, 2010

T. Hari Prasad; K. Hema Chandra Reddy; M. Muralidhara Rao

2010-01-01T23:59:59.000Z

123

Harmonizing Above Code Codes  

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

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

124

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

SciTech Connect

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

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

1994-07-01T23:59:59.000Z

125

Chemical Emissions of Residential Materials and Products: Review of Available Information Preliminary Analysis of U.S. Residential  

E-Print Network (OSTI)

Chemical Emissions of Residential Materials and Products: Review of Available Information Preliminary Analysis of U.S. Residential Air Leakage Database v.2011, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents

126

Over-allocation or abatement? : a preliminary analysis of the EU ETS based on the 2005 emission data  

E-Print Network (OSTI)

This paper provides an initial analysis of the EU ETS based on the installation-level data for verified emissions and allowance allocations in the first trading year. Those data, released on May 15, 2006, and subsequent ...

Ellerman, A. Denny

2006-01-01T23:59:59.000Z

127

Analysis of the effectiveness of the first European Pollutant Emission Register (EPER)  

Science Journals Connector (OSTI)

The aim of this paper is to examine the effectiveness of the first European Pollution Emissions Register (EPER), a regulatory instrument based on the publication of the environmental performance of firms exceeding specified pollution limits. The Multivariate Regression Model (MVRM) is applied to capture the disciplinary effect of the EPER. So, we first perform an analysis to determine whether the publication of the EPER has a negative effect on the market value of the listed firms. Secondly, we consider the possibility of the publication of the EPER affecting the market value of firms which could be included in the EPER but are not because their emissions do not exceed the specified pollution limits. Finally, we prepare an index to compare the environmental results of the firms and analyse whether the consequences of publishing the EPER are worse for firms with high relative pollution records.

Joaqun Can-de-Francia; Concepcin Garcs-Ayerbe; Marisa Ramrez-Alesn

2008-01-01T23:59:59.000Z

128

A Critical Analysis of Universality and Kirchhoff's Law: A Return to Stewart's Law of Thermal Emission  

E-Print Network (OSTI)

It has been advanced, on experimental (P.-M. Robitaille, IEEE Trans. Plasma Sci. 2003, v. 31(6), 1263-1267) and theoretical (P.M. Robitaille, Progr. Phys. 2006, v.2, 22-23) grounds, that blackbody radiation is not universal and remains closely linked to the emission of graphite and soot. In order to strengthen such claims, a conceptual analysis of the proofs for universality is presented. This treatment reveals that Gustav Robert Kirchhoff has not properly considered the combined effects of absorption, reflection, and the directional nature of emission in real materials. In one instance, this leads to an unintended movement away from thermal equilibrium within cavities. Using equilibrium arguments, it is demonstrated that the radiation within perfectly reflecting or arbitrary cavities does not necessarily correspond to that emitted by a blackbody.

Pierre-Marie Robitaille

2008-05-12T23:59:59.000Z

129

Government control or low carbon lifestyle? Analysis and application of a novel selective-constrained energy-saving and emission-reduction dynamic evolution system  

Science Journals Connector (OSTI)

Abstract This paper explores a novel selective-constrained energy-saving and emission-reduction (ESER) dynamic evolution system, analyzing the impact of cost of conserved energy (CCE), government control, low carbon lifestyle and investment in new technology of ESER on energy intensity and economic growth. Based on artificial neural network, the quantitative coefficients of the actual system are identified. Taking the real situation in China for instance, an empirical study is undertaken by adjusting the parameters of the actual system. The dynamic evolution behavior of energy intensity and economic growth in reality are observed, with the results in perfect agreement with actual situation. The research shows that the introduction of CCE into ESER system will have certain restrictive effect on energy intensity in the earlier period. However, with the further development of the actual system, carbon emissions could be better controlled and energy intensity would decline. In the long run, the impacts of CCE on economic growth are positive. Government control and low carbon lifestyle play a decisive role in controlling ESER system and declining energy intensity. But the influence of government control on economic growth should be considered at the same time and the controlling effect of low carbon lifestyle on energy intensity should be strengthened gradually, while the investment in new technology of ESER can be neglected. Two different cases of ESER are proposed after a comprehensive analysis. The relations between variables and constraint conditions in the ESER system are harmonized remarkably. A better solution to carry out ESER is put forward at last, with numerical simulations being carried out to demonstrate the results.

Guochang Fang; Lixin Tian; Min Fu; Mei Sun

2014-01-01T23:59:59.000Z

130

Chemometric analysis of infrared emission spectra for quantitative analysis of BPSG films on silicon  

SciTech Connect

Infrared emission spectra of 21 borophosphosilicate glass (BPSG) thin films on silicon wafers were collected with the samples held at constant temperature between 125--400{degree}C using a heating stage designed for precise temperature control ({plus_minus}{degree}C). Partial test squares calibrations applied to the BPSG infrared emittance spectra allowed four BPSG thin-film properties to be simultaneously quantified with precisions of 0.1 wt. % for boron and phosphorus, 35 {Angstrom} for film thickness, and 1.2{degree}C for temperature.

Franke, J.E.; Chen, Chuenyuan S.; Zhang, Songbaio; Niemczyk, T.M. [New Mexico Univ., Albuquerque, NM (United States). Dept. of Chemistry; Haaland, D.M. [Sandia National Labs., Albuquerque, NM (United States)

1993-11-01T23:59:59.000Z

131

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

SciTech Connect

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

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

2010-08-15T23:59:59.000Z

132

Carbon sinks and emissions trading under the Kyoto Protocol: a legal analysis  

Science Journals Connector (OSTI)

...Saunders Carbon sinks and emissions trading under the Kyoto Protocol: a...the issues of carbon sinks and emissions trading nearly aborted the Kyoto Protocol...third flexibility mechanism, emissions trading, compounded the complexity...

2002-01-01T23:59:59.000Z

133

Analysis and Modeling on the GHG Emissions in Dyeing and Finishing Processes  

Science Journals Connector (OSTI)

This paper analyzes the GHG emissions from each process in dyeing and ... energy using and industrial activities contribute the main GHG emissions. And a model is created to calculate the GHG emissions in dyeing ...

Yingxiang Fan; Ming Du; Hui Song

2011-01-01T23:59:59.000Z

134

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

SciTech Connect

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

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

2013-08-15T23:59:59.000Z

135

Damped quantum harmonic oscillator  

E-Print Network (OSTI)

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

A. Isar; A. Sandulescu

2006-02-17T23:59:59.000Z

136

Quantitative analysis of factors affecting greenhouse gas emissions at institutions of higher education  

E-Print Network (OSTI)

States, emissions from buildings comprise 40% of energy consumption and carbon emissions, not including to have 10 times more effect on emissions per square meter than space such as classroom and office, while to the institution's own greenhouse gas emission reductions, energy and water conservation, and other sustainability

Illinois at Chicago, University of

137

Energy, emissions and environmental impact analysis of wind turbine using life cycle assessment technique  

Science Journals Connector (OSTI)

Abstract Wind turbine used for electricity generation is known as clean and renewable energy technology. The worldwide increasing trend of wind turbine installation present and future projection addressing the issue of energy required for manufacture and environmental impact due to energy consumption. The life cycle energy and environmental impact of wind turbine has been studied in many literature, but some studies are based on average data, the life cycle stages are incomplete of some study, most of the literature are horizontal axis type and the literature for Asian developing countries are rare. In addition, the life cycle study of vertical axis wind turbine is unusual. Since, the life cycle assessment (LCA) study varied from location to location due to industrial performance, countries energy mix and related issues, a life cycle embodied energy, emissions and environmental impacts analysis were undertaken for two grid connected rooftop wind turbines (vertical axis and horizontal axis) considering the industrial performance, applications and related issues in Thailand. The life cycle assessment was done using SimaPro 7.3.3 software from cradle to grave for base case and for alternative cases. The result showed that, wind turbine installation in Thailand at Chiangmai is reliable to deliver wind energy over the year compared to Phuket and Surat Thani Island. The vertical axis wind turbine is energy and emission intensive per kWh/year energy delivered compared to horizontal axis wind turbine for base case system. The embodied energy and environmental impact could be possible to reduce by more than 60% and 50% respectively using reuse of materials strategy. The embodied energy of vertical axis wind turbine could be possible to reduce by 36% with thermoplastic and 40% with fiberglass plastic turbine instead of aluminum turbine, while the environmental impact reduction more than 15% has been observed. The energy intensity, CO2 emission intensity and energy payback time found to be lower when compared with literature.

Md. Shazib Uddin; S. Kumar

2014-01-01T23:59:59.000Z

138

Forecasting GHG emissions using an optimized artificial neural network model based on correlation and principal component analysis  

Science Journals Connector (OSTI)

Abstract The prediction of GHG emissions is very important due to their negative impacts on climate and global warming. The aim of this study was to develop a model for GHG forecasting emissions at the national level using a new approach based on artificial neural networks (ANN) and broadly available sustainability, economical and industrial indicators acting as inputs. The ANN model architecture and training parameters were optimized, with inputs being selected using correlation analysis and principal component analysis. The developed ANN models were compared with the corresponding multiple linear regression (MLR) model, while an ANN model created using transformed inputs (principal components) was compared with a principal component regression (PCR) model. Since the best results were obtained with the ANN model based on correlation analysis, that particular model was selected for the actual 2011 GHG emissions forecasting. The relative errors of the 2010 GHG emissions predictions were used to adjust the ANN model predictions for 2011, which subsequently resulted in the adjusted 2011 predictions having a MAPE value of only 3.60%. Sensitivity analysis showed that gross inland energy consumption had the highest sensitivity to GHG emissions.

Davor Z. Antanasijevi?; Mirjana ?. Risti?; Aleksandra A. Peri?-Gruji?; Viktor V. Pocajt

2014-01-01T23:59:59.000Z

139

Analysis of edge density fluctuation measured by trial KSTAR beam emission spectroscopy system  

SciTech Connect

A beam emission spectroscopy (BES) system based on direct imaging avalanche photodiode (APD) camera has been designed for Korea Superconducting Tokamak Advanced Research (KSTAR) and a trial system has been constructed and installed for evaluating feasibility of the design. The system contains two cameras, one is an APD camera for BES measurement and another is a fast visible camera for position calibration. Two pneumatically actuated mirrors were positioned at front and rear of lens optics. The front mirror can switch the measurement between edge and core region of plasma and the rear mirror can switch between the APD and the visible camera. All systems worked properly and the measured photon flux was reasonable as expected from the simulation. While the measurement data from the trial system were limited, it revealed some interesting characteristics of KSTAR plasma suggesting future research works with fully installed BES system. The analysis result and the development plan will be presented in this paper.

Nam, Y. U. [National Fusion Research Institute, Daejeon (Korea, Republic of); Zoletnik, S.; Lampert, M. [Wigner RCP Institute for Particle and Nuclear Physics, Budapest (Hungary); Kovacsik, A. [Institute of Nuclear Techniques, Budapest Technical University, Budapest (Hungary)

2012-10-15T23:59:59.000Z

140

DIFFERENTIAL EMISSION MEASURE ANALYSIS OF MULTIPLE STRUCTURAL COMPONENTS OF CORONAL MASS EJECTIONS IN THE INNER CORONA  

SciTech Connect

In this paper, we study the temperature and density properties of multiple structural components of coronal mass ejections (CMEs) using differential emission measure (DEM) analysis. The DEM analysis is based on the six-passband EUV observations of solar corona from the Atmospheric Imaging Assembly on board the Solar Dynamic Observatory. The structural components studied include the hot channel in the core region (presumably the magnetic flux rope of the CME), the bright loop-like leading front (LF), and coronal dimming in the wake of the CME. We find that the presumed flux rope has the highest average temperature (>8 MK) and density ({approx}1.0 Multiplication-Sign 10{sup 9} cm{sup -3}), resulting in an enhanced emission measure over a broad temperature range (3 {<=} T(MK) {<=} 20). On the other hand, the CME LF has a relatively cool temperature ({approx}2 MK) and a narrow temperature distribution similar to the pre-eruption coronal temperature (1 {<=} T(MK) {<=} 3). The density in the LF, however, is increased by 2%-32% compared with that of the pre-eruption corona, depending on the event and location. In coronal dimmings, the temperature is more broadly distributed (1 {<=} T(MK) {<=} 4), but the density decreases by {approx}35%-{approx}40%. These observational results show that: (1) CME core regions are significantly heated, presumably through magnetic reconnection; (2) CME LFs are a consequence of compression of ambient plasma caused by the expansion of the CME core region; and (3) the dimmings are largely caused by the plasma rarefaction associated with the eruption.

Cheng, X.; Ding, M. D. [School of Astronomy and Space Science, Nanjing University, Nanjing 210093 (China); Zhang, J. [School of Physics, Astronomy and Computational Sciences, George Mason University, Fairfax, VA 22030 (United States); Saar, S. H., E-mail: xincheng@nju.edu.cn, E-mail: jzhang7@gmu.edu [Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138 (United States)

2012-12-10T23:59:59.000Z

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141

Plasma Sources Sci. Technol. 6 (1997) 317322. Printed in the UK PII: S0963-0252(97)83960-6 Spatial analysis of C2 band emission  

E-Print Network (OSTI)

analysis of C2 band emission from laser produced plasma S S Harilal, Riju C Issac, C V Bindhu, V P N Abstract. Time and space resolved spectroscopic studies of the molecular band emission from C2 of observation and position of the sampled volume of the plasma the features of the emission spectrum are found

Harilal, S. S.

142

NOx Emissions of Alternative Diesel Fuels:? A Comparative Analysis of Biodiesel and FT Diesel  

Science Journals Connector (OSTI)

This study explores the diesel injection and combustion processes in an effort to better understand the differences in NOx emissions between biodiesel, Fischer?Tropsch (FT) diesel, and their blends with a conventional diesel fuel. Emissions studies were ...

James P. Szybist; Stephen R. Kirby; Andr L. Boehman

2005-05-14T23:59:59.000Z

143

Combustion efficiency analysis and key emission parameters of a turboprop engine at various loads  

Science Journals Connector (OSTI)

Abstract In this study, combustion efficiency of a military type turboprop engine is determined at various loads with the aid of emission data. Also, emission data collected from the engine run at various loads by experimental methods is used to introduce emission parameters such as the emission index, the power emission index and the energy emission index. The calculation method of the power emission index and the energy emission index for a turboprop engine is incorporated in literature by this study. Additionally, the relationship between determined parameters is proven in this study. As a result of the study, the combustion efficiency of the engine is found to be variable between 97.8% and 99.9%, as expected from a modern aircraft engine.

Yasin ?hret; Olcay K?ncay; Tahir Hikmet Karako

2014-01-01T23:59:59.000Z

144

Pricing and Technology Options: An Analysis of Ontario Electricity Capacity Requirements and GHG Emissions  

Science Journals Connector (OSTI)

Many jurisdictions face the problem of having to reduce GHG emissions and new electricity capacity requirements. Ontario...2, SO2 and NOx emissions under different technologies. We also introduce transfer of dem...

Pierre-Olivier Pineau; Stephan Schott

2005-01-01T23:59:59.000Z

145

A decomposition analysis of carbon dioxide emissions in the Chinese nonferrous metal industry  

Science Journals Connector (OSTI)

The nonferrous metal industry (NMI) of China consumes large amounts of energy and associated emissions of carbon dioxide (CO 2) are very high. Actions to reduce CO 2 emissions and ener...

Y. Shi; T. Zhao

2014-11-01T23:59:59.000Z

146

Terahertz radiation and second-harmonic generation from InAs: Bulk versus surface electric-field-induced contributions  

E-Print Network (OSTI)

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

Reid, Matthew

147

Echo-Enabled Harmonic Generation  

SciTech Connect

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

Stupakov, Gennady

2010-08-25T23:59:59.000Z

148

Echo-Enabled Harmonic Generation  

SciTech Connect

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

Stupakov, Gennady; /SLAC

2012-06-28T23:59:59.000Z

149

Analysis of carrier behavior in C60/P(VDF-TrFE) double-layer capacitor by using electric-field-induced optical second-harmonic generation measurement  

SciTech Connect

By using displacement current measurement (DCM) and electric-field-induced optical second-harmonic generation (EFISHG) measurement, we studied the carrier behavior in the indium-tin oxide (ITO)/Poly(vinylidene fluoride-trifluoroethylene) (P(VDF-TrFE))/C60/Au(or Al) capacitors. Two DCM peaks appeared asymmetrically at around ?35.5?V and +30.0?V in the dark. Correspondingly, the EFISHG response from the C60 layer was observed, but the peak positions were different with respect to DCM ones. The results show that the spontaneous polarization of the ferroelectric P(VDF-TrFE) polymeric layer directly affects the electric field in the C60 layer, and thus governs the carrier motion in this layer. As a result, the C60 layer serves like an insulator in the dark, while electrons and holes are captured and released at the interface in response to the turn-over of spontaneous polarization of ferroelectric layer. On the other hand, under white light illumination, C60 layer serves like a conductor due to the increase of photogenerated mobile carriers, and these carriers dominate the carrier motions therein. Our findings here will be helpful for analyzing carrier behaviors in organic electronic devices using ferroelectric polymers.

Cui, Xiaojin [Department of Physical Electronics, Tokyo Institute of Technology 2-12-1 O-okayama, Meguro-ku, Tokyo 152-8552 (Japan); State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084 (China); Taguchi, Dai; Manaka, Takaaki; Iwamoto, Mitsumasa, E-mail: iwamoto@pe.titech.ac.jp [Department of Physical Electronics, Tokyo Institute of Technology 2-12-1 O-okayama, Meguro-ku, Tokyo 152-8552 (Japan)

2013-12-21T23:59:59.000Z

150

Comparative Analysis of the Production Costs and Life-Cycle GHG Emissions of FT-Liquid Fuels from Coal and  

E-Print Network (OSTI)

Coal and Natural Gas Figure S1 shows a graphical description of the life cycle of coal-to-liquids (CTL) and gas-to-liquids (GTL). Figure S1: Life Cycle of Coal-Based and Natural Gas-Based Fischer-Tropsch LiquidComparative Analysis of the Production Costs and Life- Cycle GHG Emissions of FT-Liquid Fuels from

Jaramillo, Paulina

151

Will export rebate policy be effective for CO2 emissions reduction in China? A CEEPA-based analysis  

Science Journals Connector (OSTI)

Abstract China has adopted cancellation of export tax rebate policies on many occasions to push ahead energy conservation and emission reduction since 2007. By applying a CEEPA (China Energy & Environmental Policy Analysis system) model, this paper simulates the impacts of the cancellation of export rebates on CO2 emissions and socio-economic consequences in different scenarios so as to figure out whether it works. This paper covers three export rebate scenarios and makes comparisons between the impacts of export rebates on emission reduction effects and that of carbon tax policies. The conclusions are: 1) the current policy which cancels export rebates for key sectors can cut emissions at huge economic cost, yet it is unsustainable; 2) the policy which cancels export rebates for key sectors and meanwhile subsidizes sectoral outputs yields double dividends in the short term, thus can facilitate emission reduction yet the boost is limited; 3) the policy which cancels export rebates and boosts domestic demand helps improving residents' welfare in the short term while it may inflict pronounced social and economic impacts in the long run. So policy of this kind should be adopted with great caution; 4) export rebates generate far more economic costs than carbon tax policies in the long term, and don't contribute to optimizing the energy mix as well as the latter. In summary, canceling export rebates should not be regarded as a priority to encourage emission reduction.

Jing-Li Fan; Qiao-Mei Liang; Qian Wang; Xian Zhang; Yi-Ming Wei

2014-01-01T23:59:59.000Z

152

The evolution of carbon dioxide emissions from energy use in industrialized countries: an end-use analysis  

SciTech Connect

There has been much attention drawn to plans for reductions or restraint in future C02 emissions, yet little analysis of the recent history of those emissions by end use or economic activity. Understanding the components of C02 emissions, particularly those related to combustion of fossil fuels, is important for judging the likely success of plans for dealing with future emissions. Knowing how fuel switching, changes in economic activity and its structure, or changes in energy-use efficiency affected emissions in the past, we can better judge both the realism of national proposals to restrain future emissions and the outcome as well. This study presents a first step in that analysis. The organization of this paper is as follows. We present a brief background and summarize previous work analyzing changes in energy use using the factorial method. We then describe our data sources and method. We then present a series of summary results, including a comparison of C02 emissions in 1991 by end use or sector. We show both aggregate change and change broken down by factor, highlighting briefly the main components of change. We then present detailed results, sector by sector. Next we highlight recent trends. Finally, we integrate our results, discussing -the most important factors driving change - evolution in economic structure, changes in energy intensities, and shifts in the fuel mix. We discuss briefly some of the likely causes of these changes - long- term technological changes, effects of rising incomes, the impact of overall changes in energy prices, as well as changes in the relative prices of energy forms.

Schipper, L.; Ting, M.; Khrushch, M.; Unander, F.; Monahan, P.; Golove, W.

1996-08-01T23:59:59.000Z

153

Decomposition analysis of CO2 emissions from electricity generation in China  

Science Journals Connector (OSTI)

Electricity generation in China mainly depends on coal and its products, which has led to the increase in CO2 emissions. This paper intends to analyze the current status of CO2 emissions from electricity generation in China during the period 19912009, and apply the logarithmic mean Divisia index (LMDI) technique to find the nature of the factors influencing the changes in CO2 emissions. The main results as follows: (1) CO2 emission from electricity generation has increased from 530.96Mt in 1991 to 2393.02Mt in 2009, following an annual growth rate of 8.72%. Coal products is the main fuel type for thermal power generation, which accounts for more than 90% CO2 emissions from electricity generation. (2) This paper also presents CO2 emissions factor of electricity consumption, which help calculate CO2 emission from final electricity consumption. (3) In China, the economic activity effect is the most important contributor to increase CO2 emissions from electricity generation, but the electricity generation efficiency effect plays the dominant role in decreasing CO2 emissions.

Ming Zhang; Xiao Liu; Wenwen Wang; Min Zhou

2013-01-01T23:59:59.000Z

154

Vehicle Technologies Office Merit Review 2014: Emissions Modeling: GREET Life Cycle Analysis  

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

Presentation given by Argonne National Laboratory at 2014 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about emissions...

155

Fuel-Cycle Energy and Emissions Analysis with the GREET Model  

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

* Develop a comprehensive tool to examine full energy and emission effects of vehiclefuel systems * Conduct thorough WTW analyses with the developed tool * Total project funding...

156

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

SciTech Connect

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

Ganeev, R. A. [Institut National de la Recherche Scientifique, Centre Energie, Materiaux et Telecommunications, 1650 Lionel-Boulet, Varennes, Quebec, J3X 1S2 (Canada); Scientific Association Akadempribor, Academy of Sciences of Uzbekistan, Akademgorodok, Tashkent 100125 (Uzbekistan); Bom, L. B. Elouga; Kieffer, J.-C.; Ozaki, T. [Institut National de la Recherche Scientifique, Centre Energie, Materiaux et Telecommunications, 1650 Lionel-Boulet, Varennes, Quebec, J3X 1S2 (Canada); Suzuki, M.; Kuroda, H. [Institute for Solid State Physics, University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8581 (Japan)

2007-08-15T23:59:59.000Z

157

Gamma-ray bursts prompt emission spectrum: an analysis of a photosphere model  

Science Journals Connector (OSTI)

...research-article Discussion Meeting Issue Gamma-ray bursts organized by Alan Wells, Ralph...J. Wijers and Martin Rees Gamma-ray bursts prompt emission spectrum: an...stages of the prompt emission of gamma-ray bursts (GRBs) and X-ray flashes...

2007-01-01T23:59:59.000Z

158

Exergy analysis of combustion characteristics and NOx emissions of a dual-fuel engine  

Science Journals Connector (OSTI)

The combustion characteristics and NOx emissions of compression ignition engines working on a dual fuel mode are investigated numerically and their exergetic efficiencies are determined. The model has been validated with available experimental results. The simulation results show that dual fuel engine combustion and trend of NOx emissions are well predicted by the present model. Parametric study showed improvements in engine performance and an increase in NOx emissions with decreased advanced injection timing of the pilot fuel as well as with increased intake temperature and pilot fuel quantity. The maximum values for energy and exergy are found to be comparable.

Mohamed H. Morsy; Abdelrahman El-Leathy; Arif Hepbasli

2012-01-01T23:59:59.000Z

159

Time-Symmetric Discretization of The Harmonic Oscillator  

SciTech Connect

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

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

2010-11-24T23:59:59.000Z

160

Second and Third Harmonic Measurements at the Linac Coherent Light Source  

SciTech Connect

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

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

2011-01-03T23:59:59.000Z

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


161

U.S. Manufacturing Energy Use and Greenhouse Gas Emissions Analysis...  

Energy Savers (EERE)

2012 The report ranks the energy use, energy losses, and energy-related greenhouse gas (GHG) emissions of 15 sectors. These sectors collectively account for 94% of all energy use...

162

Electricity generation and emissions reduction decisions under uncertainty : a general equilibrium analysis  

E-Print Network (OSTI)

The electric power sector, which accounts for approximately 40% of U.S. carbon dioxide emissions, will be a critical component of any policy the U.S. government pursues to confront climate change. In the context of uncertainty ...

Morris, Jennifer F. (Jennifer Faye)

2013-01-01T23:59:59.000Z

163

Electricity Generation and Emissions Reduction Decisions under Policy Uncertainty: A General Equilibrium Analysis  

E-Print Network (OSTI)

The electric power sector, which accounts for approximately 40% of U.S. carbon dioxide emissions, will be a critical component of any policy the U.S. government pursues to confront climate change. In the context of uncertainty ...

Morris, J.

164

The relationship between carbon dioxide emissions and economic growth: quantile panel-type analysis  

Science Journals Connector (OSTI)

This paper samples the data of 138 countries during the 19712007 period, and performs an empirical test to validate the relationship between carbon dioxide emissions and economic growth. It first performs panel ...

Kuan-Min Wang

2013-04-01T23:59:59.000Z

165

Carbon Emissions Analysis of Rail Resurfacing Work: A Case Study, Practical Guideline, and Systems Thinking Approach  

E-Print Network (OSTI)

Carbon pollution has become a sensitive topic across the globe in recent times. In Australia, incentive has been provided to industry in order to reduce carbon emissions in heavy polluting industries. The railway transportation ...

Krezo, S.

166

Harmonic generation with temporally focused ultrashort pulses  

E-Print Network (OSTI)

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

Silberberg, Yaron

167

Well-to-wheels energy use and greenhouse gas emissions analysis of plug-in hybrid electric vehicles.  

SciTech Connect

Researchers at Argonne National Laboratory expanded the Greenhouse gases, Regulated Emissions, and Energy use in Transportation (GREET) model and incorporated the fuel economy and electricity use of alternative fuel/vehicle systems simulated by the Powertrain System Analysis Toolkit (PSAT) to conduct a well-to-wheels (WTW) analysis of energy use and greenhouse gas (GHG) emissions of plug-in hybrid electric vehicles (PHEVs). The WTW results were separately calculated for the blended charge-depleting (CD) and charge-sustaining (CS) modes of PHEV operation and then combined by using a weighting factor that represented the CD vehicle-miles-traveled (VMT) share. As indicated by PSAT simulations of the CD operation, grid electricity accounted for a share of the vehicle's total energy use, ranging from 6% for a PHEV 10 to 24% for a PHEV 40, based on CD VMT shares of 23% and 63%, respectively. In addition to the PHEV's fuel economy and type of on-board fuel, the marginal electricity generation mix used to charge the vehicle impacted the WTW results, especially GHG emissions. Three North American Electric Reliability Corporation regions (4, 6, and 13) were selected for this analysis, because they encompassed large metropolitan areas (Illinois, New York, and California, respectively) and provided a significant variation of marginal generation mixes. The WTW results were also reported for the U.S. generation mix and renewable electricity to examine cases of average and clean mixes, respectively. For an all-electric range (AER) between 10 mi and 40 mi, PHEVs that employed petroleum fuels (gasoline and diesel), a blend of 85% ethanol and 15% gasoline (E85), and hydrogen were shown to offer a 40-60%, 70-90%, and more than 90% reduction in petroleum energy use and a 30-60%, 40-80%, and 10-100% reduction in GHG emissions, respectively, relative to an internal combustion engine vehicle that used gasoline. The spread of WTW GHG emissions among the different fuel production technologies and grid generation mixes was wider than the spread of petroleum energy use, mainly due to the diverse fuel production technologies and feedstock sources for the fuels considered in this analysis. The PHEVs offered reductions in petroleum energy use as compared with regular hybrid electric vehicles (HEVs). More petroleum energy savings were realized as the AER increased, except when the marginal grid mix was dominated by oil-fired power generation. Similarly, more GHG emissions reductions were realized at higher AERs, except when the marginal grid generation mix was dominated by oil or coal. Electricity from renewable sources realized the largest reductions in petroleum energy use and GHG emissions for all PHEVs as the AER increased. The PHEVs that employ biomass-based fuels (e.g., biomass-E85 and -hydrogen) may not realize GHG emissions benefits over regular HEVs if the marginal generation mix is dominated by fossil sources. Uncertainties are associated with the adopted PHEV fuel consumption and marginal generation mix simulation results, which impact the WTW results and require further research. More disaggregate marginal generation data within control areas (where the actual dispatching occurs) and an improved dispatch modeling are needed to accurately assess the impact of PHEV electrification. The market penetration of the PHEVs, their total electric load, and their role as complements rather than replacements of regular HEVs are also uncertain. The effects of the number of daily charges, the time of charging, and the charging capacity have not been evaluated in this study. A more robust analysis of the VMT share of the CD operation is also needed.

Elgowainy, A.; Burnham, A.; Wang, M.; Molburg, J.; Rousseau, A.; Energy Systems

2009-03-31T23:59:59.000Z

168

Variational Calculation with Harmonic-Oscillator Eigenfunctions  

Science Journals Connector (OSTI)

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

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

1971-01-01T23:59:59.000Z

169

Limitations and improvements for harmonic generation measurements  

SciTech Connect

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

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

2014-02-18T23:59:59.000Z

170

Analysis of atmospheric particular matter and water using atomic emission spectrometry with inductively-coupled plasma and two-jet plasmatron  

Science Journals Connector (OSTI)

A method for the atomic emission spectrometric analysis of air and water with inductively coupled and two-jet direct current plasmas has been developed. The method has been applied to the determination of impu...

I. G. Yudelevich; B. I. Zaksas

171

Spatiotemporal representation of the pitch of harmonic complex tones in auditory nerve  

E-Print Network (OSTI)

The pitch of harmonic complex tones plays an important role in speech and music perception and the analysis of auditory scenes, yet traditional rateplace and temporal models for pitch processing provide only an incomplete ...

Cedolin, Leonardo

172

Towards greener horizontal-axis wind turbines: analysis of carbon emissions, energy and costs at the early design stage  

Science Journals Connector (OSTI)

Abstract This paper describes the development of a quantitative analysis system as a platform for rapidly estimate energy, costs and carbon emission to facilitate the comparison of different wind turbine concept designs. This system aimed specifically at wind turbine manufacturing processes due to the fact that a large proportion of the environmental, costs and energy impacts would occur at this stage. The proposed method supports an initial assessment of multiple design concepts which allows the selection and development of a greener wind turbine. The developed system enables concept design of commercial wind turbine towers of hub heights between 44 and 135m. The method supports an accurate estimation in regards to the dimension, energy consumed, maximum power output, costs and carbon emission in the early design phases of a wind turbine. As a result of the development, the proposed approach could potentially be used to minimise the carbon footprints of major engineering projects such as wind farms.

Raymond Aso; Wai Ming Cheung

2015-01-01T23:59:59.000Z

173

Global Warming Is Driven by Anthropogenic Emissions: A Time Series Analysis Approach  

Science Journals Connector (OSTI)

The solar influence on global climate is nonstationary. Processes such as the Schwabe and Gleissberg cycles of the Sun, or the many intrinsic atmospheric oscillation modes, yield a complex pattern of interaction with multiple time scales. In addition, emissions of greenhouse gases, aerosols, or volcanic dust perturb the dynamics of this coupled system to different and still uncertain extents. Here we show, using two independent driving force reconstruction techniques, that the combined effect of greenhouse gases and aerosol emissions has been the main external driver of global climate during the past decades.

Pablo F. Verdes

2007-07-24T23:59:59.000Z

174

Life Cycle Greenhouse Gas Emissions from Electricity Generation (Fact Sheet)  

SciTech Connect

Analysts at NREL have developed and applied a systematic approach to review the LCA literature, identify primary sources of variability and, where possible, reduce variability in GHG emissions estimates through a procedure called 'harmonization.' Harmonization of the literature provides increased precision and helps clarify the impacts of specific electricity generation choices, producing more robust results.

Not Available

2013-01-01T23:59:59.000Z

175

Black carbon emissions in the United Kingdom during the past four decades: An empirical analysis  

SciTech Connect

We use data from a unique 40-year record of 150 urban and rural stations in the ''Black Smoke and SO2 Network'' in Great Britain to infer information about sources of atmospheric black carbon (BC). The data show a rapid decline of ambient atmospheric BC between 1962 and the early 1990s that exceeds the decline in official estimates of BC emissions based only on amount of fuel use and mostly fixed emission factors. This provides empirical confirmation of the existence and large impact of a time-dependent ''technology factor'' that must multiply the rate of fossil fuel use. Current ambient BC amounts in Great Britain comparable to those in western and central Europe, with diesel engines being the principal present source. From comparison of BC and SO2 data we infer that current BC emission inventories understate true emissions in the U.K. by about a factor of two. The results imply that there is the potential for improved technology to achieve large reduction of global ambient BC. There is a need for comparable monitoring of BC in other countries.

Novakov, T.; Hansen, J.E.

2004-04-22T23:59:59.000Z

176

Spectral analysis for cascade-emission-based quantum communication in atomic ensembles  

E-Print Network (OSTI)

The ladder configuration of atomic levels provides a source for telecom photons (signal) from the upper atomic transition. \\ For rubidium and cesium atoms, the signal field has the range around 1.3-1.5 $\\mu$m that can be coupled to an optical fiber and transmitted to a remote location. \\ Cascade emission may result in pairs of photons, the signal entangled with the subsequently emitted infrared photon (idler) from the lower atomic transition.\\ This correlated two-photon source is potentially useful in the (Duan-Lukin-Cirac-Zoller) DLCZ protocol for the quantum repeater.\\ We implement the cascade emission to construct a modified DLCZ quantum repeater and investigate the role of time-frequency entanglement in the protocol.\\ The dependence of protocol on photon-number resolving and non-resolving detectors is also studied.\\ We find that frequency entanglement deteriorates the performance but the harmful effect can be diminished by using shorter pump pulses to generate the cascade emission.\\ An optimal cascade-emission-based DLCZ scheme is realized by applying a pure two-photon source in addition to using detectors of perfect quantum efficiency.

H. H. Jen

2014-03-11T23:59:59.000Z

177

Analysis of Strategies for Reducing Multiple Emissions from Electric Power Plants: SO2, Nox, CO2  

Reports and Publications (EIA)

This report responds to a request received from Senator David McIntosh on June 29, 2000 to analyze the impacts on energy consumers and producers of coordinated strategies to reduce emissions of sulfur dioxide, nitrogen oxides, and carbon dioxide at U.S. power plants.

2001-01-01T23:59:59.000Z

178

U.S. Manufacturing Energy Use and Greenhouse Gas Emissions Analysis  

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

The report ranks the energy use, energy losses, and energy-related greenhouse gas (GHG) emissions of 15 sectors. These sectors collectively account for 94% of all energy use in manufacturing. In addition, in-depth profiles of energy flows are available for U.S. manufacturing as a whole and for the five largest energy-consuming sectors.

179

Analysis of Emissions Calculators for the National Center of Excellence on Displaced Emission Reductions (CEDER)- 2008 Annual Report to the United States Environmental Protection Agency  

E-Print Network (OSTI)

and database that satisfies the EPA guidelines. The value of this unique tool was demonstrated in 2005 when the Energy Systems Laboratory (ESL), at the request of the TCEQ, used it to develop integrated emissions estimates for all state agencies... was demonstrated in 2005 when the ESL, at the request of the TCEQ, used it to develop integrated emissions estimates for all state agencies participating in the Texas Emissions Reduction Plan (TERP). Building on this expertise, the EPA has established a National...

Yazdani, B.; Culp, C.; Haberl, J.; Baltazar, J. C.; Do, S. L.

180

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

Science Journals Connector (OSTI)

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

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

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


181

Performance analysis and exhaust emissions of neem methyl ester operated compression ignition engine  

Science Journals Connector (OSTI)

Neem oil methyl ester (NOME) was prepared from neem oil using alkaline catalyzed transesterification. The important fuel properties of NOME 20% blend of NOME with diesel were compared with those of diesel. Optimum injection pressures were determined for neat diesel and NOME-20 blend. Comparison of brake specific fuel consumption (BSFC) brake thermal efficiency (BTE) exhaust gas temperature (EGT) and smoke density was done for diesel and NOME-20 blend at their respective optimum injection pressure. Higher BSFC a slight decrease in BTE and a sharp decrease in EGT and smoke density were recorded with NOME-20 blend. Emissions with NOME-20 blend were also compared with diesel emissions at their respective optimum injection pressures. Significant reductions in carbon monoxide hydrocarbon and oxides of nitrogen and increase in carbon-di-oxide were observed with NOME-20 blend. Hence neem biodiesel has an environmental importance over diesel and shows a promising future.

Vinod Singh Yadav; Kamal Kishore Khatri; Deepak Tanwar; Ajayta; Dilip Sharma; S. L. Soni

2013-01-01T23:59:59.000Z

182

Agricultural Sector Analysis on Greenhouse Gas Emission Mitigation in the United States  

E-Print Network (OSTI)

............................................................................ 14 2.2.2 Agriculture - A GHG Sequestering Sink............................................... 15 vi Page 2.2.2.1 Soil Sequestration ........................................................................ 15 2.2.2.2 Forest Sequestration... systems (Flach, Barnwell, and Crosson). Similarly, total forestland in the U.S. has been slightly increasing during the last decade (U.S. Forest Service). In countries with large rates of deforestation emissions are important. Houghton estimates...

Schneider, Uwe A.

2000-01-01T23:59:59.000Z

183

Quantitative Analysis of the Resolved X-ray Emission Line Profiles of O Stars  

E-Print Network (OSTI)

are a small fraction of the wind mass Runacres & Owocki 2002, A&A, 381, 1015 #12;Statistics from a long rad-hydro to shock-heating and X-ray emission 1-D rad-hydro simulation of the LDI #12;A snapshot at a single time, 3201 #12;Another rad-hydro simulation, but plotted in Lagrangian coordinates. The shock-heated regions

Cohen, David

184

Zero-Emission Vehicle Scenario Cost Analysis Using A Fuzzy Set-Based Framework  

E-Print Network (OSTI)

Cycle Cost Analysis of Conventional and Fuel Cell/BatteryEVs A few cost analyses for complete PEM fuel cell systemshigh-volume PEM fuel cell system cost analysis has been

Lipman, Timothy E.

1999-01-01T23:59:59.000Z

185

Studies on dual fuel engine performance and exhaust emission analysis by response surface methodology  

Science Journals Connector (OSTI)

In this present study a five factor three level Box-Behnken response surface design was used to study the effect of five independent variables such as diesel (40%100%) ethanol (0%-30%) pongamia oil methyl ester (POME) (0%30%) compressed natural gas (CNG) (0%20%) and load of the engine (0%100%) on the performance (brake thermal efficiency brake specific fuel consumption and exhaust gas temperature) and emission characteristics (carbon mono-oxide (CO) carbon dioxides (CO2) unburnt hydrocarbon oxides of nitrogen (NOX) and smoke) of a single cylinder four stroke water cooled diesel engine converted to dual fuel system. It was operated with either diesel fuel or blend with CNG using an electronically controlled solenoid actuated valve mechanism. The experimental results showed that all the process variables have significant effect on the engine performance. The emission characteristics (CO CO2 NOX and Smoke) were significantly lower than the diesel fuel emissions. From the experimental results second order polynomial models were developed to predict the response variables. The optimal conditions were determined and it was found to be: Diesel 70% Ethanol 15% POME 15% CNG 10% and load 50% respectively with a desirability value of 0.894.

R. Senthilraja; V. Sivakumar; J. Prakash Maran

2014-01-01T23:59:59.000Z

186

Comparative Analysis of Non-thermal Emissions and Study of Electron Transport in a Solar Flare  

E-Print Network (OSTI)

We study the non-thermal emissions in a solar flare occurring on 2003 May 29 by using RHESSI hard X-ray (HXR) and Nobeyama microwave observations. This flare shows several typical behaviors of the HXR and microwave emissions: time delay of microwave peaks relative to HXR peaks, loop-top microwave and footpoint HXR sources, and a harder electron energy distribution inferred from the microwave spectrum than from the HXR spectrum. In addition, we found that the time profile of the spectral index of the higher-energy ($\\gsim 100$ keV) HXRs is similar to that of the microwaves, and is delayed from that of the lower-energy ($\\lsim 100$ keV) HXRs. We interpret these observations in terms of an electron transport model called {\\TPP}. We numerically solved the spatially-homogeneous {\\FP} equation to determine electron evolution in energy and pitch-angle space. By comparing the behaviors of the HXR and microwave emissions predicted by the model with the observations, we discuss the pitch-angle distribution of the electrons injected into the flare site. We found that the observed spectral variations can qualitatively be explained if the injected electrons have a pitch-angle distribution concentrated perpendicular to the magnetic field lines rather than isotropic distribution.

T. Minoshima; T. Yokoyama; N. Mitani

2007-10-02T23:59:59.000Z

187

Hydrogen production and delivery analysis in US markets : cost, energy and greenhouse gas emissions.  

SciTech Connect

Hydrogen production cost conclusions are: (1) Steam Methane Reforming (SMR) is the least-cost production option at current natural gas prices and for initial hydrogen vehicle penetration rates, at high production rates, SMR may not be the least-cost option; (2) Unlike coal and nuclear technologies, the cost of natural gas feedstock is the largest contributor to SMR production cost; (3) Coal- and nuclear-based hydrogen production have significant penalties at small production rates (and benefits at large rates); (4) Nuclear production of hydrogen is likely to have large economies of scale, but because fixed O&M costs are uncertain, the magnitude of these effects may be understated; and (5) Given H2A default assumptions for fuel prices, process efficiencies and labor costs, nuclear-based hydrogen is likely to be more expensive to produce than coal-based hydrogen. Carbon taxes and caps can narrow the gap. Hydrogen delivery cost conclusions are: (1) For smaller urban markets, compressed gas delivery appears most economic, although cost inputs for high-pressure gas trucks are uncertain; (2) For larger urban markets, pipeline delivery is least costly; (3) Distance from hydrogen production plant to city gate may change relative costs (all results shown assume 100 km); (4) Pipeline costs may be reduced with system 'rationalization', primarily reductions in service pipeline mileage; and (5) Liquefier and pipeline capital costs are a hurdle, particularly at small market sizes. Some energy and greenhouse gas Observations: (1) Energy use (per kg of H2) declines slightly with increasing production or delivery rate for most components (unless energy efficiency varies appreciably with scale, e.g., liquefaction); (2) Energy use is a strong function of production technology and delivery mode; (3) GHG emissions reflect the energy efficiency and carbon content of each component in a production-delivery pathway; (4) Coal and natural gas production pathways have high energy consumption and significant GHG emissions (in the absence of carbon caps, taxes or sequestration); (5) Nuclear pathway is most favorable from energy use and GHG emissions perspective; (6) GH2 Truck and Pipeline delivery have much lower energy use and GHG emissions than LH2 Truck delivery; and (7) For LH2 Truck delivery, the liquefier accounts for most of the energy and GHG emissions.

Mintz, M.; Gillette, J.; Elgowainy, A. (Decision and Information Sciences); ( ES)

2009-01-01T23:59:59.000Z

188

Well-to-wheels analysis of energy use and greenhouse gas emissions of plug-in hybrid electric vehicles.  

SciTech Connect

Plug-in hybrid electric vehicles (PHEVs) are being developed for mass production by the automotive industry. PHEVs have been touted for their potential to reduce the US transportation sector's dependence on petroleum and cut greenhouse gas (GHG) emissions by (1) using off-peak excess electric generation capacity and (2) increasing vehicles energy efficiency. A well-to-wheels (WTW) analysis - which examines energy use and emissions from primary energy source through vehicle operation - can help researchers better understand the impact of the upstream mix of electricity generation technologies for PHEV recharging, as well as the powertrain technology and fuel sources for PHEVs. For the WTW analysis, Argonne National Laboratory researchers used the Greenhouse gases, Regulated Emissions, and Energy use in Transportation (GREET) model developed by Argonne to compare the WTW energy use and GHG emissions associated with various transportation technologies to those associated with PHEVs. Argonne researchers estimated the fuel economy and electricity use of PHEVs and alternative fuel/vehicle systems by using the Powertrain System Analysis Toolkit (PSAT) model. They examined two PHEV designs: the power-split configuration and the series configuration. The first is a parallel hybrid configuration in which the engine and the electric motor are connected to a single mechanical transmission that incorporates a power-split device that allows for parallel power paths - mechanical and electrical - from the engine to the wheels, allowing the engine and the electric motor to share the power during acceleration. In the second configuration, the engine powers a generator, which charges a battery that is used by the electric motor to propel the vehicle; thus, the engine never directly powers the vehicle's transmission. The power-split configuration was adopted for PHEVs with a 10- and 20-mile electric range because they require frequent use of the engine for acceleration and to provide energy when the battery is depleted, while the series configuration was adopted for PHEVs with a 30- and 40-mile electric range because they rely mostly on electrical power for propulsion. Argonne researchers calculated the equivalent on-road (real-world) fuel economy on the basis of U.S. Environmental Protection Agency miles per gallon (mpg)-based formulas. The reduction in fuel economy attributable to the on-road adjustment formula was capped at 30% for advanced vehicle systems (e.g., PHEVs, fuel cell vehicles [FCVs], hybrid electric vehicles [HEVs], and battery-powered electric vehicles [BEVs]). Simulations for calendar year 2020 with model year 2015 mid-size vehicles were chosen for this analysis to address the implications of PHEVs within a reasonable timeframe after their likely introduction over the next few years. For the WTW analysis, Argonne assumed a PHEV market penetration of 10% by 2020 in order to examine the impact of significant PHEV loading on the utility power sector. Technological improvement with medium uncertainty for each vehicle was also assumed for the analysis. Argonne employed detailed dispatch models to simulate the electric power systems in four major regions of the US: the New England Independent System Operator, the New York Independent System Operator, the State of Illinois, and the Western Electric Coordinating Council. Argonne also evaluated the US average generation mix and renewable generation of electricity for PHEV and BEV recharging scenarios to show the effects of these generation mixes on PHEV WTW results. Argonne's GREET model was designed to examine the WTW energy use and GHG emissions for PHEVs and BEVs, as well as FCVs, regular HEVs, and conventional gasoline internal combustion engine vehicles (ICEVs). WTW results are reported for charge-depleting (CD) operation of PHEVs under different recharging scenarios. The combined WTW results of CD and charge-sustaining (CS) PHEV operations (using the utility factor method) were also examined and reported. According to the utility factor method, the share of vehicle miles trav

Elgowainy, A.; Han, J.; Poch, L.; Wang, M.; Vyas, A.; Mahalik, M.; Rousseau, A.

2010-06-14T23:59:59.000Z

189

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

E-Print Network (OSTI)

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

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

190

Modulation compression for short wavelength harmonic generation  

E-Print Network (OSTI)

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

Qiang, J.

2010-01-01T23:59:59.000Z

191

Well-to-Wheels Analysis of Energy Use and Greenhouse Gas Emissions...  

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

Advanced Vehicle Technology Analysis and Evaluation Activities and Heavy Vehicle Systems Optimization Program Annual Progress Report Home About the Fuel Cell Technologies Office...

192

DERIVING PLASMA DENSITIES AND ELEMENTAL ABUNDANCES FROM SERTS DIFFERENTIAL EMISSION MEASURE ANALYSIS  

SciTech Connect

We use high-resolution spectral emission line data obtained by the SERTS instrument during three rocket flights to demonstrate a new approach for constraining electron densities of solar active region plasma. We apply differential emission measure (DEM) forward-fitting techniques to characterize the multithermal solar plasma producing the observed EUV spectra, with constraints on the high-temperature plasma from the Yohkoh Soft X-ray Telescope. In this iterative process, we compare line intensities predicted by an input source distribution to observed line intensities for multiple iron ion species, and search a broad range of densities to optimize {chi}{sup 2} simultaneously for the many available density-sensitive lines. This produces a density weighted by the DEM, which appears to be useful for characterizing the bulk of the emitting plasma over a significant range of temperature. This 'DEM-weighted density' technique is complementary to the use of density-sensitive line ratios and less affected by uncertainties in atomic data and ionization fraction for any specific line. Once the DEM shape and the DEM-weighted density have been established from the iron lines, the relative elemental abundances can be determined for other lines in the spectrum. We have also identified spectral lines in the SERTS wavelength range that may be problematic.

Schmelz, J. T.; Kimble, J. A. [Physics Department, University of Memphis, Memphis, TN 38152 (United States); Saba, J. L. R., E-mail: jschmelz@memphis.edu [Astronomy Department, University of Maryland, College Park, MD 20742 (United States)

2012-09-20T23:59:59.000Z

193

HARMONIC CYCLOTRON HEATING IN THE TOROIDAL OCTUPOLE  

E-Print Network (OSTI)

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

Sprott, Julien Clinton

194

Impact of stray capacitance on hvdc harmonics  

SciTech Connect

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

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

1989-01-01T23:59:59.000Z

195

Current Generated Harmonics and Their Effect Upon Electrical Industrial Systems  

E-Print Network (OSTI)

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

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

196

Building Technologies Office: Harmonization of Wireless Dimming Lighting  

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

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

197

Electron Cyclotron Emission from the Princeton Large Tokamak  

Science Journals Connector (OSTI)

Experimental measurements of electron cyclotron emission from the Princeton Large Tokamak plasma reveal that blackbody emission occurs at the fundamental frequency. Such emission, not possible by direct thermal excitation of electromagnetic waves, is herein attributed to thermal excitation of electrostatic (Bernstein) waves which then mode convert into electromagnetic waves. The local feature of the electrostatic wave generation permits spatially and temporally resolved measurements of electron temperature as for the second-harmonic emission.

J. Hosea; V. Arunasalam; R. Cano

1977-08-15T23:59:59.000Z

198

Focused analyte spray emission apparatus and process for mass spectrometric analysis  

DOE Patents (OSTI)

An apparatus and process are disclosed that deliver an analyte deposited on a substrate to a mass spectrometer that provides for trace analysis of complex organic analytes. Analytes are probed using a small droplet of solvent that is formed at the junction between two capillaries. A supply capillary maintains the droplet of solvent on the substrate; a collection capillary collects analyte desorbed from the surface and emits analyte ions as a focused spray to the inlet of a mass spectrometer for analysis. The invention enables efficient separation of desorption and ionization events, providing enhanced control over transport and ionization of the analyte.

Roach, Patrick J. (Kennewick, WA); Laskin, Julia (Richland, WA); Laskin, Alexander (Richland, WA)

2012-01-17T23:59:59.000Z

199

Volatile emission by contest losers revealed by real-time chemical analysis  

Science Journals Connector (OSTI)

...losers revealed by real-time chemical analysis Marlene Goubault Tim...interactions often involve chemical exchange but simultaneous evaluation...individuals. We explore the chemical behaviour of the bethylid wasp...APCI source was mounted on a Platform II mass spectrometer (Waters...

2006-01-01T23:59:59.000Z

200

A high-fidelity harmonic drive model.  

SciTech Connect

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

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

2012-01-01T23:59:59.000Z

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


201

An Analysis of the health impacts from PM and NOx emissions resulting from train operations in the Alameda Corridor, CA  

E-Print Network (OSTI)

2009). Estimating PM and NOx Train Emissions in the AlamedaAuthority. Number of Trains Running on the Alameda Corridor.x emissions resulting from train operations in the Alameda

Sangkapichai, Mana; Saphores, Jean-Daniel M; Ogunseitan, Oladele; Ritchie, Stephen G.; You, Soyoung Iris; Lee, Gunwoo

2010-01-01T23:59:59.000Z

202

Trend analysis from 1970 to 2008 and model evaluation of EDGARv4 global gridded anthropogenic mercury emissions  

E-Print Network (OSTI)

The Emission Database for Global Atmospheric Research (EDGAR) provides a time-series of man-made emissions of greenhouse gases and short-lived atmospheric pollutants from 1970 to 2008. Mercury is included in EDGARv4.tox1, ...

Muntean, Marilena

203

Greening the Korean Stacks Through Lessons from the EU Emissions Trading System: A Socio-legal Analysis  

Science Journals Connector (OSTI)

A reduction of the greenhouse gases emissions is one of the most important policies to tackle the long-term changes to the climate system. The emission trading schemes are flexible market mechanisms, which, ... u...

Hyonsu Kim

2012-01-01T23:59:59.000Z

204

Analysis of black carbon and carbon monoxide observed over the Indian Ocean: Implications for emissions and photochemistry  

E-Print Network (OSTI)

and known emission factors for black carbon (BC) from South Asia yields 0.7 Tg yr?1 (upper limit of about 1 Global Change: Atmosphere (0315, 0325); KEYWORDS: Soot, black carbon, CO, emissions, India Citation of black carbon and carbon monoxide observed over the Indian Ocean: Implications for emissions

Dickerson, Russell R.

205

Harmonization of Federal and International Regulations  

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

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

206

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

Science Journals Connector (OSTI)

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

Sanjay Agrawal; Soumya R. Mohanty; Vineeta Agarwal

2015-01-01T23:59:59.000Z

207

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

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

Nuclear Power Results - Life Cycle Assessment Harmonization Nuclear Power Results - Life Cycle Assessment Harmonization Over the last 30 years, analysts have conducted life cycle assessments on the environmental impacts associated with a variety of nuclear power technologies and systems. These life cycle assessments have had wide-ranging results. To better understand greenhouse gas (GHG) emissions from nuclear power systems, NREL completed a comprehensive review and analysis of life cycle assessments focused on light water reactors (LWRs)-including both boiling water reactors (BWRs) and pressurized water reactors (PWRs)-published between 1980 and 2010. NREL developed and applied a systematic approach to review life cycle assessment literature, identify primary sources of variability and, where possible, reduce variability in GHG emissions

208

Well-to-Wheel Energy, Emissions, and Cost Analysis of Electricity and Fuel Used in Conventional and Electrified Vehicles, and Their Connection to a Sustainable Energy Infrastructure  

E-Print Network (OSTI)

produced in creating the electricity through a full Life Cycle Analysis. As a result, proper comparison of electrified and conventional vehicles must include a complete Well-to-Wheel (WtW) study including the emissions generated through production and use...

Strecker, Bryan Anthony

2012-12-31T23:59:59.000Z

209

Online YPA4 Resin Microcolumn Separation/Preconcentration Coupled with Inductively Coupled Plasma Optical Emission Spectrometry (ICP-OES) for the Speciation Analysis of Mercury in Seafood  

Science Journals Connector (OSTI)

Online YPA4 Resin Microcolumn Separation/Preconcentration Coupled with Inductively Coupled Plasma Optical Emission Spectrometry (ICP-OES) for the Speciation Analysis of Mercury in Seafood ... The developed method was applied to the determination of mercury species in real seafoods with satisfactory results. ...

Chaomei Xiong; Bin Hu

2007-11-22T23:59:59.000Z

210

Life Cycle Greenhouse Gas Emissions from Solar Photovoltaics (Fact Sheet)  

SciTech Connect

The National Renewable Energy Laboratory (NREL) recently led the Life Cycle Assessment (LCA) Harmonization Project, a study that helps to clarify inconsistent and conflicting life cycle GHG emission estimates in the published literature and provide more precise estimates of life cycle GHG emissions from PV systems.

Not Available

2012-11-01T23:59:59.000Z

211

Harmonizing Systems and Software Cost Estimation  

E-Print Network (OSTI)

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

Wang, Gan

2009-07-19T23:59:59.000Z

212

Second Harmonic Resonance for Equatorial Waves  

Science Journals Connector (OSTI)

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

John P. Boyd

1983-03-01T23:59:59.000Z

213

Dual aperture dipole magnet with second harmonic component  

DOE Patents (OSTI)

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

Praeg, W.F.

1983-08-31T23:59:59.000Z

214

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

SciTech Connect

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

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

2009-01-09T23:59:59.000Z

215

Echo-Enabled Harmonic Generation for Seeded FELs  

SciTech Connect

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

Stupakov, G.; /SLAC

2011-05-19T23:59:59.000Z

216

Nuclear power pros and cons: A comparative analysis of radioactive emissions from nuclear power plants and thermal power plants  

Science Journals Connector (OSTI)

On the basis of the public data statistics of recent years on pollution and emissions from nuclear power plants (NPPs) and thermal power plants...

V. A. Gordienko; S. N. Brykin; R. E. Kuzin

2012-02-01T23:59:59.000Z

217

Well-to-Wheels Analysis of Energy Use and Greenhouse Gas Emissions of Plug-in Hybrid Electric Vehicles  

Fuel Cell Technologies Publication and Product Library (EERE)

This report examines energy use and emissions from primary energy source through vehicle operation to help researchers understand the impact of the upstream mix of electricity generation technologies

218

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

E-Print Network (OSTI)

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

Lu, Tiao

219

Urbanisation, energy consumption, and carbon dioxide emissions in China: A panel data analysis of Chinas provinces  

Science Journals Connector (OSTI)

Abstract Global warming resulting from rapid economic growth across the world has become a worldwide threat. The coordination of development of urbanisation, energy consumption, and carbon dioxide (CO2) emissions therefore forms an important issue; it has attracted considerable attention from both governments and researchers in recent years. This study investigated the relationship between urbanisation, energy consumption, and CO2 emissions over the period 19952011, using a panel data model, based on the data for 30 Chinese provinces. The potential to reduce CO2 emissions was also analysed. The results indicated that per capita CO2 emissions in China were characterised by conspicuous regional imbalances during the period studied; in fact, per capita CO2 emissions decrease gradually from the eastern coastal region to the central region, and then to the western region. Urbanisation, energy consumption, and CO2 emissions were found to present a long run bi-directional positive relationship, the significance of which was discovered to vary between provinces as a result of the scale of their respective economies. In addition, a bi-directional causal relationship was found to exist between urbanisation, energy consumption, and CO2 emissions: specifically, a bi-directional positive causal relationship exists between CO2 emissions and urbanisation, as well as between energy consumption and CO2 emissions, and a one way positive causal relationship exists from urbanisation to energy consumption. Scenario simulations further demonstrated that whilst Chinas per capita and total CO2 emissions will increase continuously between 2012 and 2020 under all of the three scenarios developed in this study, the potential to achieve reductions is also high. A better understanding of the relationship between urbanisation, energy consumption, and CO2 emissions will help China to realise the low-carbon economic development.

Shaojian Wang; Chuanglin Fang; Xingliang Guan; Bo Pang; Haitao Ma

2014-01-01T23:59:59.000Z

220

Emissions Trading  

Science Journals Connector (OSTI)

Emissions trading is a comparatively new policy instrument which ... electricity systems in Europe. The development of emissions trading thus represents an innovation in its own...

2009-01-01T23:59:59.000Z

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


221

Avoiding deforestation in Panamanian protected areas: An analysis of protection effectiveness and implications for reducing emissions from deforestation and  

E-Print Network (OSTI)

resource management A B S T R A C T Reducing greenhouse gas emissions from deforestation and forest and, until recently, overlooked source of greenhouse gas (GHG) emissions, accounting for up to one. Such a mechanism, either market-based or fund-based, would constitute a relatively inexpensive means to reduce non-energy

Bermingham, Eldredge

222

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

Science Journals Connector (OSTI)

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

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

2013-11-01T23:59:59.000Z

223

Advanced PHEV Engine Systems and Emissions Control Modeling and...  

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

PHEV Engine Systems and Emissions Control Modeling and Analysis Advanced PHEV Engine Systems and Emissions Control Modeling and Analysis 2011 DOE Hydrogen and Fuel Cells Program,...

224

Quantum dynamics of the damped harmonic oscillator  

E-Print Network (OSTI)

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

T. G. Philbin

2012-05-11T23:59:59.000Z

225

Optical Third-Harmonic Generation in Graphene  

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

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

2013-06-01T23:59:59.000Z

226

Quantum dynamics of the damped harmonic oscillator  

E-Print Network (OSTI)

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

Philbin, T G

2012-01-01T23:59:59.000Z

227

Fuel Consumption and Emissions  

Science Journals Connector (OSTI)

Calculating fuel consumption and emissions is a typical offline analysis ... simulations or real trajectory data) and the engine speed (as obtained from gear-shift schemes ... as input and is parameterized by veh...

Martin Treiber; Arne Kesting

2013-01-01T23:59:59.000Z

228

Where do fossil fuel carbon dioxide emissions from California go? An analysis based on radiocarbon observations and an atmospheric transport model  

E-Print Network (OSTI)

do fossil fuel carbon dioxide emissions from California go?do fossil fuel carbon dioxide emissions from California go?1 distribution of carbon dioxide emissions from fossil fuel

2008-01-01T23:59:59.000Z

229

Edge Plasma Heating via Cyclotron Harmonic Interaction  

Science Journals Connector (OSTI)

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

Satish Puri

1988-08-22T23:59:59.000Z

230

Urea/Ammonia Distribution Optimization in an SCR Emission Control System Through the Use of CFD Analysis  

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

Poster presentation at the 2007 Diesel Engine-Efficiency & Emissions Research Conference (DEER 2007). 13-16 August, 2007, Detroit, Michigan. Sponsored by the U.S. Department of Energy's (DOE) Office of FreedomCAR and Vehicle Technologies (OFCVT).

231

Investigating the impact of nuclear energy consumption on GDP growth and CO2 emission: A panel data analysis  

Science Journals Connector (OSTI)

Abstract This study investigates the influence of nuclear energy consumption on GDP growth and CO2 emission in 30 major nuclear energy consuming countries. The panel mode was used taking the period 19902010. The results of the study indicated that nuclear energy consumption has a positive long run effect on GDP growth while it has no long run effect on CO2 emission. The Granger causality test results also revealed that nuclear energy consumption has a positive short run causal relationship with GDP growth while it has a negative short run causal relationship with CO2 emission. Based on the results of this study, nuclear energy consumption has an important role in increasing GDP growth in the investigated countries with no effect on CO2 emission. Consequently, unlike fossil fuels which also increase GDP growth, nuclear energy consumption causes less damage to the environment. From the results of the study, a number of recommendations were provided for the investigated countries.

Usama Al-mulali

2014-01-01T23:59:59.000Z

232

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

E-Print Network (OSTI)

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

233

Cladding-pumped passive harmonically mode-locked fiber laser  

Science Journals Connector (OSTI)

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

Fermann, M E; Minelly, J D

1996-01-01T23:59:59.000Z

234

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

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

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

235

Motion Planning with Gamma-Harmonic Potential  

E-Print Network (OSTI)

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

Masoud, Ahmad A.

236

A Note on Stable Harmonic Maps  

Science Journals Connector (OSTI)

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

Pui-Fai Leung

1984-04-01T23:59:59.000Z

237

VOLUMETRIC HARMONIC BRAIN MAPPING Yalin Wang1  

E-Print Network (OSTI)

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

238

Extreme Harmonic Generation in Electrically Driven Spin Resonance  

Science Journals Connector (OSTI)

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

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

2014-06-06T23:59:59.000Z

239

The Large N Harmonic Oscillator as a String Theory  

E-Print Network (OSTI)

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

Nissan Itzhaki; John McGreevy

2004-08-24T23:59:59.000Z

240

Analysis of Strategies for Reducing Multiple Emissions from Electric Power Plants: Sulfur Dioxide, Nitrogen Oxides, Carbon Dioxide, and Mercury and a Renewable Portfolio Standard  

Gasoline and Diesel Fuel Update (EIA)

3 3 ERRATA Analysis of Strategies for Reducing Multiple Emissions from Electric Power Plants: Sulfur Dioxide, Nitrogen Oxides, Carbon Dioxide, and Mercury and a Renewable Portfolio Standard July 2001 Energy Information Administration Office of Integrated Analysis and Forecasting U.S. Department of Energy Washington, DC 20585 This Service Report was prepared by the Energy Information Administration, the independent statistical and analytical agency within the Department of Energy. The information contained herein should be attributed to the Contacts This report was prepared by the Office of Integrated Analysis and Forecasting, Energy Information Adminis- tration. General questions concerning the report may be directed to Mary J. Hutzler (202/586-2222, mhutzler @eia.doe.gov), Director of the Office of Integrated Analysis and Forecasting, Scott B. Sitzer (202/586-2308,

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


241

Controlling the Interference of Multiple Molecular Orbitals in High-Harmonic Generation  

SciTech Connect

We demonstrate a new method to investigate the origin of spectral structures in high-harmonic generation. We report detailed measurements of high-harmonic spectra in aligned nitrogen and carbon dioxide molecules. Varying the wavelength and intensity of the generating laser field, we show that the minimum in aligned N{sub 2} molecules is nearly unaffected, whereas the minimum in aligned CO{sub 2} molecules shifts over more than 15 eV. Our quantitative analysis shows that both the interference of multiple orbitals and their structural characteristics affect the position of the minimum. Our method provides a simple approach to the investigation of the high-harmonic generation process in more complex molecules.

Woerner, H. J.; Bertrand, J. B.; Hockett, P.; Corkum, P. B.; Villeneuve, D. M. [Joint Laboratory for Attosecond Science, National Research Council of Canada and University of Ottawa, 100 Sussex Drive, Ottawa, Ontario, K1A 0R6 (Canada)

2010-06-11T23:59:59.000Z

242

High-order harmonic generation and multi-photon ionization of ethylene in laser fields  

E-Print Network (OSTI)

Applying time-dependent local density approximation (TDLDA), we study the high-order harmonic generation (HHG) of ethylene subjected to the one-color ($\\omega=2.72$ eV) and the two-color ($\\omega_1=2.72$ eV and $\\omega_2=5.44$ eV) ultrashort intense laser pulses. The HHG spectrum of ethylene in the one-color laser field shows the obvious plateaus and odd order harmonics are produced while the two-color laser field can result in the breaking of the symmetry and generation of the even order harmonic. The ionization probabilities are obtained showing the increase of the ionization probability of higher charge state by the two-color laser field. The temporal structures of HHG spectrum of ethylene is explored by means of the time-frequency analysis showing new insights of the HHG mechanisms in the one-color and the two-color laser fields.

Wang, Z P; Reinhard, P -G; Suraud, E; Zhang, F S

2009-01-01T23:59:59.000Z

243

Generic polar harmonic transforms for invariant image representation  

Science Journals Connector (OSTI)

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

Thai V. Hoang, Salvatore Tabbone

2014-08-01T23:59:59.000Z

244

Detailed analysis of hollow ions spectra from dense matter pumped by X-ray emission of relativistic laser plasma  

SciTech Connect

X-ray emission from hollow ions offers new diagnostic opportunities for dense, strongly coupled plasma. We present extended modeling of the x-ray emission spectrum reported by Colgan et al. [Phys. Rev. Lett. 110, 125001 (2013)] based on two collisional-radiative codes: the hybrid-structure Spectroscopic Collisional-Radiative Atomic Model (SCRAM) and the mixed-unresolved transition arrays (MUTA) ATOMIC model. We show that both accuracy and completeness in the modeled energy level structure are critical for reliable diagnostics, investigate how emission changes with different treatments of ionization potential depression, and discuss two approaches to handling the extensive structure required for hollow-ion models with many multiply excited configurations.

Hansen, S. B., E-mail: sbhanse@sandia.gov, E-mail: anatolyf@hotmail.com [Sandia National Laboratories, Albuquerque, New Mexico 87123 (United States); Colgan, J.; Abdallah, J. [Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)] [Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States); Faenov, A. Ya., E-mail: sbhanse@sandia.gov, E-mail: anatolyf@hotmail.com [Joint Institute for High Temperatures, Russian Academy of Sciences, Moscow 125412 (Russian Federation); Quantum Beam Science Directorate, Japan Atomic Energy Agency, Kyoto 619-0215 (Japan); Pikuz, S. A.; Skobelev, I. Yu. [Joint Institute for High Temperatures, Russian Academy of Sciences, Moscow 125412 (Russian Federation)] [Joint Institute for High Temperatures, Russian Academy of Sciences, Moscow 125412 (Russian Federation); Wagenaars, E.; Culfa, O.; Dance, R. J.; Tallents, G. J.; Rossall, A. K.; Woolsey, N. C. [York Plasma Institute, Department of Physics, University of York, York YO10 5DD (United Kingdom)] [York Plasma Institute, Department of Physics, University of York, York YO10 5DD (United Kingdom); Booth, N.; Lancaster, K. L. [Central Laser Facility, STFC Rutherford Appleton Laboratory, Didcot OX11 0QX (United Kingdom)] [Central Laser Facility, STFC Rutherford Appleton Laboratory, Didcot OX11 0QX (United Kingdom); Evans, R. G. [Department of Physics, Imperial College, London SW7 2AZ (United Kingdom)] [Department of Physics, Imperial College, London SW7 2AZ (United Kingdom); Gray, R. J.; McKenna, P. [SUPA, Department of Physics, University of Strathclyde, Glasgow G4 ONG (United Kingdom)] [SUPA, Department of Physics, University of Strathclyde, Glasgow G4 ONG (United Kingdom); Kaempfer, T.; Schulze, K. S. [Helmholtzinstitut Jena, Jena D-07743 (Germany)] [Helmholtzinstitut Jena, Jena D-07743 (Germany); Uschmann, I. [Helmholtzinstitut Jena, Jena D-07743 (Germany) [Helmholtzinstitut Jena, Jena D-07743 (Germany); Institut fr Optik und Quantenelektronic, Friedrich-Schiller-Universitt Jena, Max-Wien Platz 1, Jena, D-07743 (Germany); and others

2014-03-15T23:59:59.000Z

245

Emissions Trading  

Science Journals Connector (OSTI)

Emissions trading is a market-based instrument to achieve ... The current international dissemination and intended linking of emissions trading schemes underlines the growing relevance of this ... . There are thr...

Edwin Woerdman

2014-06-01T23:59:59.000Z

246

Emissions Trading  

Science Journals Connector (OSTI)

This chapter covers a series of operations which are essential for the implementation of an efficient emissions trading market on the domestic and international level. An introduction to how a national emissions trading

Dr. Michael See

2001-01-01T23:59:59.000Z

247

Measurements and analysis of CO and O2 emissions in CH4/CO2/O2 flames  

E-Print Network (OSTI)

or deep saline aquifiers, or used for enhanced oil recovery (EOR) or enhanced coal bed methane recovery the key tradeoffs associated with optimizing these systems, as well as the dependence of emissions concepts (e.g., Graz [4] or Matiant [5] cycles) and integra- tion with gasification processes for coal

Lieuwen, Timothy C.

248

Well-to-Wheels Analysis of Energy Use and Greenhouse Gas Emissions of Plug-In Hybrid Electric Vehicles  

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

This report examines energy use and emissions from primary energy source through vehicle operation to help researchers understand the impact of the upstream mix of electricity generation technologies for recharging PHEVs, as well as the powertrain technology and fuel sources for PHEVs.

249

HIGH-RESOLUTION NEAR-INFRARED SPECTROSCOPY OF HD 100546. II. ANALYSIS OF VARIABLE ROVIBRATIONAL CO EMISSION LINES  

SciTech Connect

We present observations of rovibrational CO in HD 100546 from four epochs spanning 2003 January through 2010 December. We show that the equivalent widths of the CO lines vary during this time period with the v = 1-0 CO lines brightening more than the UV fluoresced lines from the higher vibrational states. While the spectroastrometric signal of the hot band lines remains constant during this period, the spectroastrometric signal of the v = 1-0 lines varies substantially. At all epochs, the spectroastrometric signals of the UV fluoresced lines are consistent with the signal one would expect from gas in an axisymmetric disk. In 2003, the spectroastrometric signal of the v = 1-0 P26 line was symmetric and consistent with emission from an axisymmetric disk. However, in 2006 there was no spatial offset of the signal detected on the red side of the profile, and in 2010 the spectroastrometric offset was yet more strongly reduced toward zero velocity. A model is presented that can explain the evolution of the equivalent width of the v = 1-0 P26 line and its spectroastrometric signal by adding to the system a compact source of CO emission that orbits the star near the inner edge of the disk. We hypothesize that such emission may arise from a circumplanetary disk orbiting a gas giant planet near the inner edge of the circumstellar disk. We discuss how this idea can be tested observationally and be distinguished from an alternative interpretation of random fluctuations in the disk emission.

Brittain, Sean D.; Liskowsky, Joseph [Department of Physics and Astronomy, 118 Kinard Laboratory, Clemson University, Clemson, SC 29634 (United States); Najita, Joan R. [National Optical Astronomy Observatory, 950 N. Cherry Ave., Tucson, AZ 85719 (United States); Carr, John S. [Naval Research Laboratory, Code 7211, Washington, DC 20375 (United States); Troutman, Matthew R. [Department of Physics and Astronomy, University of Missouri - St. Louis, St. Louis, MO 63121 (United States); Doppmann, Greg W., E-mail: sbritt@clemson.edu, E-mail: jliskow@clemson.edu, E-mail: najita@noao.edu, E-mail: carr@nrl.navy.mil, E-mail: troutmanm@umsl.edu, E-mail: gdoppmann@keck.hawaii.edu [W. M. Keck Observatory, 65-1120 Mamalahoa Hwy, Kamuela, HI 96743 (United States)

2013-04-20T23:59:59.000Z

250

An estimate of monthly global emissions of anthropogenic CO2: Impact on the seasonal cycle of atmospheric CO2  

E-Print Network (OSTI)

An estimate of monthly global emissions of anthropogenic CO2: Impact on the seasonal cycle of anthropogenic CO2 are presented. Approximating the seasonal CO2 emission cycle using a 2-harmonic Fourier series with regions of strong anthropogenic CO2 emissions. Citation: Erickson, D. J., III, R. T. Mills, J. Gregg, T. J

Hoffman, Forrest M.

251

Rapid Assessment of City Emissions (RACE): Case of Batangas City...  

Open Energy Info (EERE)

analysis, Baseline projection, Co-benefits assessment, - Environmental and Biodiversity, GHG inventory, Low emission development planning, -LEDS, Market analysis, Pathways...

252

Harmon, Illinois: Energy Resources | Open Energy Information  

Open Energy Info (EERE)

Harmon, Illinois: Energy Resources Harmon, Illinois: Energy Resources Jump to: navigation, search Equivalent URI DBpedia Coordinates 41.719689°, -89.556564° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":41.719689,"lon":-89.556564,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

253

Harmon Electric Assn Inc | Open Energy Information  

Open Energy Info (EERE)

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

254

Regional Cooperation and Harmonization on EESL  

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

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

255

Harmonic oscillator in presence of nonequilibrium environment  

SciTech Connect

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

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

2009-06-21T23:59:59.000Z

256

Quantum decoherence of the damped harmonic oscillator  

E-Print Network (OSTI)

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

A. Isar

2006-06-27T23:59:59.000Z

257

Interpretation of the harmonic response of superconducting films to inhomogeneous ac magnetic fields  

Science Journals Connector (OSTI)

We present a quantitative analysis of the response of a thin superconducting film to an applied nonuniform ac magnetic field. The analysis is directly applicable to the single-coil inductive measurement technique where a small coil driven by an ac current produces a nonuniform field, with JC determined by the appearance of a third-harmonic component of the voltage generated across the coil. We derive a simple model to explain the response of the film to the applied magnetic field in the absence of weak links. This model is used to predict the third-harmonic voltage generated across the coil. The derivation of the model explains why superconducting films having thicknesses even less than the penetration depth screen out the nonuniform ac magnetic fields generated by the coil. A simplified version of the model yields analytic expressions that describe the magnitude and phase of the third-harmonic component at high drive currents while the full model yields excellent agreement with experimental measurements for our highest quality epitaxial films. In other films, the presence of weak links leads to a characteristic signature in the harmonic response at low drive currents. We have also found that ion irradiation can reduce the critical current densities by significant amounts without introducing weak links into the film.

G. D. Poulin; J. S. Preston; T. Strach

1993-07-01T23:59:59.000Z

258

A critical analysis of sketch-planning tools for evaluating the emissions benefits of transportation control measures  

E-Print Network (OSTI)

scenario comparison, and sensitivity analysis were performed on the SAI and SANDAG methods. Results of the sensitivity analysis showed that the tools are most sensitive to the scope descriptors and work-related variables. The conclusions of the thesis...

Crawford, Jason Aaron

2012-06-07T23:59:59.000Z

259

HIGH-RESOLUTION NEAR-INFRARED SPECTROSCOPY OF HD 100546. I. ANALYSIS OF ASYMMETRIC RO-VIBRATIONAL OH EMISSION LINES  

SciTech Connect

We present observations of ro-vibrational OH and CO emission from the Herbig Be star HD 100546. The emission from both molecules arises from the inner region of the disk extending from approximately 13 AU from the central star. The velocity profiles of the OH lines are narrower than the velocity profile of the [O I] {lambda}6300 line, indicating that the OH in the disk is not cospatial with the O I. This suggests that the inner optically thin region of the disk is largely devoid of molecular gas. Unlike the ro-vibrational CO emission lines, the OH lines are highly asymmetric. We show that the average CO and average OH line profiles can be fit with a model of a disk comprised of an eccentric inner wall and a circular outer disk. In this model, the vast majority of the OH flux (75%) originates from the inner wall, while the vast majority of the CO flux (65%) originates on the surface of the disk at radii greater than 13 AU. Eccentric inner disks are predicted by hydrodynamic simulations of circumstellar disks containing an embedded giant planet. We discuss the implications of such a disk geometry in light of models of planet-disk tidal interactions and propose alternative explanations for the origin of the asymmetry.

Liskowsky, Joseph P.; Brittain, Sean D. [Department of Physics and Astronomy, 118 Kinard Laboratory, Clemson University, Clemson, SC 29634 (United States); Najita, Joan R. [National Optical Astronomy Observatory, 950 N. Cherry Ave., Tucson, AZ 85719 (United States); Carr, John S. [Naval Research Laboratory, Code 7211, Washington, DC 20375 (United States); Doppmann, Greg W. [W. M. Keck Observatory, 65-1120 Mamalahoa Hwy, Kamuela, HI 96743 (United States); Troutman, Matthew R., E-mail: sbritt@clemson.edu, E-mail: najita@noao.edu, E-mail: carr@nrl.navy.mil, E-mail: gdoppmann@keck.hawaii.edu, E-mail: troutmanm@umsl.edu [Department of Physics and Astronomy, University of Missouri-St. Louis, St. Louis, MO 63121 (United States)

2012-12-01T23:59:59.000Z

260

Macro-System Model: A Federated Object Model for Cross-Cutting Analysis of Hydrogen Production, Delivery, Consumption and Associated Emissions; Preprint  

SciTech Connect

It is commonly accepted that the introduction of hydrogen as an energy carrier for light-duty vehicles involves concomitant technological development of infrastructure elements, such as production, delivery, and consumption, all associated with certain emission levels. To analyze these at a system level, the suite of corresponding models developed by the United States Department of Energy and involving several national laboratories is combined in one macro-system model (MSM). The macro-system model is being developed as a cross-cutting analysis tool that combines a set of hydrogen technology analysis models. Within the MSM, a federated simulation framework is used for consistent data transfer between the component models. The framework is built to suit cross-model as well as cross-platform data exchange and involves features of 'over-the-net' computation.

Ruth, M.; Diakov, V.; Goldsby, M. E.; Sa, T. J.

2010-12-01T23:59:59.000Z

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


261

Life Cycle Greenhouse Gas Emissions from Concentrating Solar Power (Fact Sheet)  

SciTech Connect

The National Renewable Energy Laboratory (NREL) recently led the Life Cycle Assessment (LCA) Harmonization Project, a study that makes great strides in clarifying inconsistent and conflicting GHG emission estimates in the published literature while providing more precise estimates of GHG emissions from utility-scale CSP systems.

Not Available

2012-11-01T23:59:59.000Z

262

NETL: Emissions Characterization - CMU Emissions Characterization Study  

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

Source Emissions Characterization Study Source Emissions Characterization Study The emissions characterization study is being performed in conjunction with the Pittsburgh Air Quality Study [PDF-744KB], a larger effort that includes ambient measurements and atmospheric modeling of the Pittsburgh region. The main objectives of this portion of the study are: To achieve advanced characterization of the PM in the Pittsburgh region. Measurements include the PM size, surface, volume, and mass distribution; chemical composition as a function of size and on a single particle basis; temporal and spatial variability. To obtain accurate current fingerprints of the major primary PM sources in the Pittsburgh region using traditional filter-based sampling and state-of-the-art techniques such as dilution sampling and single particle analysis using mass spectroscopy and LIBS.

263

Analysis of Potential Energy Saving and CO2 Emission Reduction of Home Appliances and Commercial Equipments in China  

SciTech Connect

China is now the world's largest producer and consumer of household appliances and commercial equipment. To address the growth of electricity use of the appliances, China has implemented a series of minimum energy performance standards (MEPS) for 30 appliances, and voluntary energy efficiency label for 40 products. Further, in 2005, China started a mandatory energy information label that covers 19 products to date. However, the impact of these standard and labeling programs and their savings potential has not been evaluated on a consistent basis. This research involved modeling to estimate the energy saving and CO{sub 2} emission reduction potential of the appliances standard and labeling program for products for which standards are currently in place, or under development and those proposed for development in 2010. Two scenarios that have been developed differ primarily in the pace and stringency of MEPS development. The 'Continued Improvement Scenario' (CIS) reflects the likely pace of post-2009 MEPS revisions, and the likely improvement at each revision step considering the technical limitation of the technology. The 'Best Practice Scenario' (BPS) examined the potential of an achievement of international best practice MEPS in 2014. This paper concludes that under the 'CIS' of regularly scheduled MEPS revisions to 2030, cumulative electricity consumption could be reduced by 9503 TWh, and annual CO{sub 2} emissions would be 16% lower than in the frozen efficiency scenario. Under a 'BPS' scenario for a subset of products, cumulative electricity savings would be 5450 TWh and annual CO{sub 2} emissions reduction would be 35% lower than in the frozen scenario.

Zhou, Nan; Fridley, David; McNeill, Michael; Zheng, Nina; Letschert, Virginie; Ke, Jing; Saheb, Yamina

2010-06-07T23:59:59.000Z

264

Urea/Ammonia Distribution Optimization in an SCR Emission Control...  

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

UreaAmmonia Distribution Optimization in an SCR Emission Control System Through the Use of CFD Analysis UreaAmmonia Distribution Optimization in an SCR Emission Control System...

265

Forest Restoration Carbon Analysis of Baseline Carbon Emissions and Removal in Tropical Rainforest at La Selva Central, Peru  

SciTech Connect

Conversion of tropical forest to agricultural land and pasture has reduced forest extent and the provision of ecosystem services, including watershed protection, biodiversity conservation, and carbon sequestration. Forest conservation and reforestation can restore those ecosystem services. We have assessed forest species patterns, quantified deforestation and reforestation rates, and projected future baseline carbon emissions and removal in Amazon tropical rainforest at La Selva Central, Peru. The research area is a 4800 km{sup 2} buffer zone around the Parque Nacional Yanachaga-Chemillen, Bosque de Proteccion San Matias-San Carlos, and the Reserva Comunal Yanesha. A planned project for the period 2006-2035 would conserve 4000 ha of forest in a proposed 7000 ha Area de Conservacion Municipale de Chontabamba and establish 5600 ha of natural regeneration and 1400 ha of native species plantations, laid out in fajas de enriquecimiento (contour plantings), to reforest 7000 ha of agricultural land. Forest inventories of seven sites covering 22.6 ha in primary forest and 17 sites covering 16.5 ha in secondary forest measured 17,073 trees of diameter {ge} 10 cm. The 24 sites host trees of 512 species, 267 genera, and 69 families. We could not identify the family of 7% of the trees or the scientific species of 21% of the trees. Species richness is 346 in primary forest and 257 in the secondary forest. In primary forest, 90% of aboveground biomass resides in old-growth species. Conversely, in secondary forest, 66% of aboveground biomass rests in successional species. The density of trees of diameter {ge} 10 cm is 366 trees ha{sup -1} in primary forest and 533 trees ha{sup -1} in secondary forest, although the average diameter is 24 {+-} 15 cm in primary forest and 17 {+-} 8 cm in secondary forest. Using Amazon forest biomass equations and wood densities for 117 species, aboveground biomass is 240 {+-} 30 t ha{sup -1} in the primary sites and 90 {+-} 10 t ha{sup -1} in the secondary sites. Aboveground carbon density is 120 {+-} 15 t ha{sup -1} in primary forest and 40 {+-} 5 t ha{sup -1} in secondary forest. Forest stands in the secondary forest sites range in age from 10 to 42 y. Growth in biomass (t ha{sup -1}) as a function of time (y) follows the relation: biomass = 4.09-0.017 age{sup 2} (p < 0.001). Aboveground biomass and forest species richness are positively correlated (r{sup 2} = 0.59, p < 0.001). Analyses of Landsat data show that the land cover of the 3700 km{sup 2} of non-cloud areas in 1999 was: closed forest 78%; open forest 12%, low vegetation cover 4%, sparse vegetation cover 6%. Deforestation from 1987 to 1999 claimed a net 200 km{sup 2} of forest, proceeding at a rate of 0.005 y{sup -1}. Of those areas of closed forest in 1987, only 89% remained closed forest in 1999. Consequently, closed forests experienced disruption in the time period at double the rate of net deforestation. The three protected areas experienced negligible deforestation or slight reforestation. Based on 1987 forest cover, 26,000 ha are eligible for forest carbon trading under the Clean Development Mechanism, established by the Kyoto Protocol to the United Nations Framework Convention on Climate Change. Principal components analysis showed that distance to nonforest was the factor that best explained observed patterns of deforestation while distance to forest best explained observed patterns of reforestation, more significant than elevation, distance to rivers, distance to roads, slope, and distance to towns of population > 400. Aboveground carbon in live vegetation in the project area decreased from 35 million {+-} 4 million t in 1987 to 34 million {+-} 4 million t in 1999. Projected aboveground carbon in live vegetation would fall to 33 million {+-} 4 million t in 2006, 32 million {+-} 4 million t in 2011, and 29 million {+-} 3 million t in 2035. Projected net deforestation in the research area would total 13,000 {+-} 3000 ha in the period 1999-2011, proceeding at a rate of 0.003 {+-} 0.0007 y{sup -1}, and would total 33,000 {+-} 7000

Patrick Gonzalez; Benjamin Kroll; Carlos R. Vargas

2006-01-10T23:59:59.000Z

266

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

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

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

267

Phenomenological treatment of surface second-harmonic generation  

Science Journals Connector (OSTI)

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

Mizrahi, Victor; Sipe, J E

1988-01-01T23:59:59.000Z

268

Theory of Optical Harmonic Generation at a Metal Surface  

Science Journals Connector (OSTI)

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

Sudhanshu S. Jha

1965-12-13T23:59:59.000Z

269

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

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

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

270

Electricity Generation and Emissions Reduction Decisions  

E-Print Network (OSTI)

Electricity Generation and Emissions Reduction Decisions under Policy Uncertainty: A General;1 Electricity Generation and Emissions Reduction Decisions under Policy Uncertainty: A General Equilibrium Analysis Jennifer Morris* , Mort Webster* and John Reilly* Abstract The electric power sector, which

271

Calculation of HVDC-converter harmonics in frequency domain with regard to asymmetries and comparison with time domain simulations  

SciTech Connect

In order to study the effects of large HVDC converters to the feeding ac networks, it is of importance to explain and to calculate harmonic phenomena which are a result of converter operation. During commissioning of real HVDC converters it could be seen, that harmonics resulting from unsymmetries in the system voltages or from unsymmetries in converter operation led to significant difficulties concerning the system design. For this reason, not only the effects of characteristic but also the effects of noncharacteristic converter harmonics must be taken into account. The aim is to describe the steady state harmonic behavior of the converter. The harmonic spectra are not determined by time domain analysis but instead the solution is found by frequency domain calculations. This can result in reduced calculation time in comparison to conventional fourier analysis of the time functions. The converter is interpreted as an amplitude modulator with voltage and current converter functions which describe the coupling of the dc circuit and the ac network through the converter. To verify the theory, comparison of frequency domain with time domain calculations were carried out.

Rittiger, J. [Siemens AG, Erlangen (Germany)] [Siemens AG, Erlangen (Germany); Kulicke, B. [Technische Univ. Berlin (Germany)] [Technische Univ. Berlin (Germany)

1995-10-01T23:59:59.000Z

272

The comparative analysis of diesel engine combustion and emission parameters fuelled with palm oil methyl esters and its diesel blends  

Science Journals Connector (OSTI)

In this work, the combustion and emission characteristics of a direct injection compression ignition engine fuelled with diesel-Palm Oil Methyl Ester (POME) blends are investigated. This study shows that the ignition delay decreases with increase in the POME addition. The maximum rate of pressure rise and maximum rate of heat release decreases with increase in POME addition at all loads. As the percentage of POME in the blend increases, the crank angle at which the maximum rate of heat release takes place advances. The brake thermal efficiency decreases with increase in POME addition. The unburned hydrocarbon, carbon monoxide and soot intensity decreases, while nitrogen oxides (NOx) increase with increase in POME addition. [Received: April 4, 2008; Accepted: November 24, 2008

G. Lakshmi Narayana Rao; S. Saravanan; P. Selva Ilavarasi

2009-01-01T23:59:59.000Z

273

Planning for future uncertainties in electric power generation : an analysis of transitional strategies for reduction of carbon and sulfur emissions  

E-Print Network (OSTI)

The object of this paper is to identify strategies for the U.S. electric utility industry for reduction of both acid rain producing and global warming gases. The research used the EPRI Electric Generation Expansion Analysis ...

Tabors, Richard D.

1991-01-01T23:59:59.000Z

274

Harmonic effects of solar geomagnetically induced currents on the electrical distribution system in nuclear power plants  

SciTech Connect

Most previous analysis on the effects of geomagnetically induced currents (GIC) on electric utility systems has steady-state phenomena, with the main interest in the generator step-up transformer and the off-site power system. This paper begins to investigate the possible effects that a GIC event might have on the power plant itself, by examining the harmonic distortion that could exist at various voltage levels in the on-site distribution system.

Carroll, D.P. [Florida Univ., Gainesville, FL (United States); Kasturi, S. [MOS, Inc., Melville, NY (United States); Subudhi, M.; Gunther, W. [Brookhaven National Lab., Upton, NY (United States)

1992-12-31T23:59:59.000Z

275

Harmonic effects of solar geomagnetically induced currents on the electrical distribution system in nuclear power plants  

SciTech Connect

Most previous analysis on the effects of geomagnetically induced currents (GIC) on electric utility systems has steady-state phenomena, with the main interest in the generator step-up transformer and the off-site power system. This paper begins to investigate the possible effects that a GIC event might have on the power plant itself, by examining the harmonic distortion that could exist at various voltage levels in the on-site distribution system.

Carroll, D.P. (Florida Univ., Gainesville, FL (United States)); Kasturi, S. (MOS, Inc., Melville, NY (United States)); Subudhi, M.; Gunther, W. (Brookhaven National Lab., Upton, NY (United States))

1992-01-01T23:59:59.000Z

276

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

SciTech Connect

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

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

2005-07-01T23:59:59.000Z

277

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

E-Print Network (OSTI)

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

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

2005-01-25T23:59:59.000Z

278

Global distribution of N2O emissions from aquatic systems: natural emissions and anthropogenic eects  

E-Print Network (OSTI)

Global distribution of N2O emissions from aquatic systems: natural emissions and anthropogenic, are increasing due to human activities. Our analysis suggests that a third of global anthropogenic N2O emission the remainder. Over 80% of aquatic anthropogenic N2O emissions are from the Northern Hemisphere mid

Seitzinger, Sybil

279

Macro-System Model: A Federated Object Model for Cross-Cutting Analysis of Hydrogen Production, Delivery, Consumption and Associated Emissions: Preprint  

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

Macro-System Model: A Macro-System Model: A Federated Object Model for Cross-Cutting Analysis of Hydrogen Production, Delivery, Consumption and Associated Emissions Preprint M. Ruth and V. Diakov National Renewable Energy Laboratory M.E. Goldsby and T.J. Sa Sandia National Laboratories Presented at 4 th Transatlantic Infraday Conference Washington, D.C. November 5, 2010 Conference Paper NREL/CP-6A10-49544 December 2010 NOTICE The submitted manuscript has been offered by an employee of the Alliance for Sustainable Energy, LLC (Alliance), a contractor of the US Government under Contract No. DE-AC36-08GO28308. Accordingly, the US Government and Alliance retain a nonexclusive royalty-free license to publish or reproduce the published form of this contribution, or allow others to do so, for US Government purposes.

280

COMBINATORIAL FORMULAS CONNECTED TO DIAGONAL HARMONICS AND MACDONALD POLYNOMIALS  

E-Print Network (OSTI)

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

Plotkin, Joshua B.

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


281

Power line harmonic radiation: A systematic study using DEMETER spacecraft  

E-Print Network (OSTI)

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

Santolik, Ondrej

282

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

E-Print Network (OSTI)

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

Santolik, Ondrej

283

A look at damped harmonic oscillators through the phase plane  

Science Journals Connector (OSTI)

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

Yousef Daneshbod; Joe Latulippe

2011-06-01T23:59:59.000Z

284

A Proof-of-Principle Echo-enabled Harmonic Generation Free Electron Laser Experiment at SLAC  

SciTech Connect

With the advent of X-ray Free Electron Lasers (FELs), new methods have been developed to extend capabilities at short wavelengths beyond Self-Amplified Spontaneous Emission (SASE). In particular, seeding of a FEL allows for temporal control of the radiation pulse and increases the peak brightness by orders of magnitude. Most recently, Gennady Stupakov and colleagues at SLAC proposed a new technique: Echo-Enabled Harmonic Generation (EEHG). Here a laser microbunches the beam in an undulator and the beam is sheared in a chicane. This process is repeated with a second laser, undulator and chicane. The interplay between these allows a seeding of the X-ray laser up to the 100th harmonic of the first laser. After introducing the physics of FELs and the EEHG seeding technique, we describe contributions to the experimental effort. We will present detailed studies of the experiment including the choice of parameters and their optimization, the emittance effect, spontaneous emission in the undulators, the second laser phase effect, and measurements of the jitter between RF stations. Finally, the status and preliminary results of the Echo-7 experiment will be outlined.

Pernet, Pierre-Louis; /Ecole Polytechnique, Lausanne /SLAC

2012-01-06T23:59:59.000Z

285

Near BPS Skyrmions and Restricted Harmonic Maps  

E-Print Network (OSTI)

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

J. M. Speight

2014-06-03T23:59:59.000Z

286

Semiclassical Distorted Wave Model Analysis of Backward Proton Emission from $(p,p^{\\prime}x)$ Reactions at Intermediate Energies  

E-Print Network (OSTI)

A semiclassical distorted wave (SCDW) model with Wigner transform of one-body density matrix is presented for multistep direct $(p,p^{\\prime}x)$ reactions to the continuum. The model uses Wigner distribution functions obtained in methods which include nucleon-nucleon correlations to a different extent, as well as Woods-Saxon (WS) single-particle wave function. The higher momentum components of target nucleons that play a crucial role in reproducing the high-energy part of the backward proton spectra are properly taken into account. This SCDW model is applied to analyses of multistep direct processes in $^{12}$C$(p,p^{\\prime}x)$, $^{40}$Ca$(p,p^{\\prime}x)$ and $^{90}$Zr$(p,p^{\\prime}x)$ in the incident energy range of 150--392 MeV. The double differential cross sections are calculated up to three-step processes. The calculated angular distributions are in good agreement with the experimental data, in particular at backward angles where the previous SCDW calculations with the WS single-particle wave function showed large underestimation. It is found that the result with the Wigner distribution function based on the coherent density fluctuation model provides overall better agreement with the experimental data over the whole emission energies.

M. K. Gaidarov; Y. Watanabe; K. Ogata; M. Kohno; M. Kawai; A. N. Antonov

2003-07-28T23:59:59.000Z

287

Harmonizing Global Metrics for Data Center Efficiency  

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

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

288

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

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

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

289

Second-harmonic generation by a graphene nanoparticle  

Science Journals Connector (OSTI)

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

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

2014-07-11T23:59:59.000Z

290

Effects of the Spatial Extent of Multiple Harmonic Layers  

SciTech Connect

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

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

2011-12-23T23:59:59.000Z

291

Harmonic measurements from a group connected generator HVdc converter scheme  

SciTech Connect

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

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

1995-10-01T23:59:59.000Z

292

Radon emissions  

Science Journals Connector (OSTI)

... SIR,-Wendy Barnaby (August 28) writes on the problem of radon emission from the tailings of uranium milling in Sweden. This problem would arise from ... that has to be treated. She describes Professor Robert O. Pohl's report that "radon can escape more easily from the broken ground of a mine than from an undisturbed ...

SVEN-ERIC BRUNNSJO

1975-10-09T23:59:59.000Z

293

How the Carbon Emissions Were Estimated  

U.S. Energy Information Administration (EIA) Indexed Site

How the Carbon Emissions Were Estimated How the Carbon Emissions Were Estimated How the Carbon Emissions Were Estimated Carbon dioxide emissions are the main component of greenhouse gas emissions caused by human activity. Carbon dioxide is emitted mostly as a byproduct of the combustion of fossil fuels for energy, although certain industrial processes (e.g., cement manufacture) also emit carbon dioxide. The estimates of energy-related carbon emissions require both data on the energy use and carbon emissions coefficients relating energy use to the amount of carbon emitted. The Energy Information Administration (EIA) is the main source of data on U.S. energy use. Emissions of Greenhouse Gases in the United States 1998 used annual data provided by energy suppliers. However, to obtain more detail on how different sectors use energy, the emissions estimates in Energy and GHG Analysis rely data from on surveys of energy users, such as manufacturing establishments and commercial buildings.

294

Comparative life cycle energy, emission, and economic analysis of 100kW nameplate wind power generation  

Science Journals Connector (OSTI)

This study compares three configurations of wind turbines to produce a nameplate power of 100kW applying LCA methodology over a lifetime of 25 years. Alternatives under study are: installing twenty Endurance (EN) 5kW, or five Jacobs (JA) 20kW, or one Northern Power (NP) 100kW turbines in the Halkirk region of Alberta, Canada. The comparison has been done taking life cycle energy, environment and economic aspects into consideration. Each parameter has been quantified corresponding to a functional unit (FU) of 1kWh. Life cycle energy requirement for NP is found to be 133.3kJ/kWh, which is about 69% and 41% less than EN and JA respectively. Global warming impact from NP is found to be 17.8gCO2eq/kWh, which is around 58% and 29% less respective to EN and JA. The acidification (SO2eq/kWh) and ground level ozone [(VOC+NOx)/kWh] impacts from NP are also found significantly less compared to EN and JA configuration. The difference in relative environmental impacts from configurations is found to be less while performing uncertainty analysis, but does not alter the ranking of configurations. At 10% internal rate of return (IRR), electricity price for NP is 0.21$/kWh, whereas EN and JA prices are 65% and 16% higher respectively.

Md Ruhul Kabir; Braden Rooke; G.D. Malinga Dassanayake; Brian A. Fleck

2012-01-01T23:59:59.000Z

295

Casimir Friction Force for Moving Harmonic Oscillators  

E-Print Network (OSTI)

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

Johan S. Hye; Iver Brevik

2011-11-21T23:59:59.000Z

296

Harmonization of Wireless Dimming Lighting Control | Department of Energy  

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

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

297

Brueckner calculations in harmonic-oscillator basis I. The method  

Science Journals Connector (OSTI)

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

J. Blank

1979-01-01T23:59:59.000Z

298

Modeling and Estimating Current Harmonics of Variable Electronic Loads  

E-Print Network (OSTI)

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

Wichakool, Warit

299

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

E-Print Network (OSTI)

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

Chen, Zhe

300

Harmonic generation of gravitational wave induced Alfven waves  

E-Print Network (OSTI)

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

Mats Forsberg; Gert Brodin

2007-11-26T23:59:59.000Z

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


301

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

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

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

302

DOUBLE COSET DECOMPOSITIONS AND COMPUTATIONAL HARMONIC ANALYSIS ON GROUPS  

E-Print Network (OSTI)

theoretic indexing scheme to derive algorithms that generalize the Cooley­Tukey FFT to arbitrary finite and Tukey [17], and their many variants (see e.g. [26]). Our results may be considered a generalization of the Cooley­Tukey algorithm to nonabelian finite groups. The computation of Fourier transforms on nonabelian

Rockmore, Dan

303

NEW ESTIMATES IN HARMONIC ANALYSIS FOR MIXED LEBESGUE SPACES  

E-Print Network (OSTI)

(Rn), the space of tempered distributions, is its dual. Definition 1.1.6. Let f 2S(Rn). Then the Fourier transform of f is given by f(x)= Z Rn f(x)e ix x dx: It extends to an isomorphism on L2(Rn) and its inverse on S is given by f(x)= 1(2p)n Z Rn f...p 1x y, which satisfies (1.1), (1.2), (1.3). The higher dimensional analogues are the Riesz transforms: R j f(x)=Cn p:v: Z x j y j jx yjn+1 f(y) dy for f 2S(Rn) and 1 j n. The kernels of the Reisz transforms also are standard kernels. Moreover...

Ward, Erika L.

2010-07-16T23:59:59.000Z

304

European renewable energy directive: Critical analysis of important default values and methods for calculating greenhouse gas (GHG) emissions of palm oil biodiesel  

Science Journals Connector (OSTI)

The GHG calculation method provided in Annex V of ... the EU-RED was used to calculate the GHG-emissions from palm oil production systems. Moreover...

Heinz Stichnothe; Frank Schuchardt

2014-06-01T23:59:59.000Z

305

China-Quantifying Emission Reduction Opportunities in Emerging...  

Open Energy Info (EERE)

Economies AgencyCompany Organization Ecofys Sector Energy Topics Background analysis, GHG inventory, Low emission development planning, Pathways analysis Website http:...

306

South Africa-Quantifying Emission Reduction Opportunities in...  

Open Energy Info (EERE)

Economies AgencyCompany Organization Ecofys Sector Energy Topics Background analysis, GHG inventory, Low emission development planning, Pathways analysis Website http:...

307

An input-output analysis of regional CO2 emissions from the service sector: an application to Liaoning Province of China  

Science Journals Connector (OSTI)

Based on the input-output tables of Liaoning Province of China for 2007, this paper calculates direct and indirect CO2 emissions from the service sector. Total CO2 emissions of the service sector are decomposed into several effects, of which the spill-over and feedback effects are further decomposed into two parts: Energy Spill-over Effect (ESE) and Remnant Spill-over Effect (RSE); energy feedback effect and remnant feedback effect. The research shows indirect CO2 emissions derived from final demand of the service sector are far more than direct CO2 emissions, the main cause of which is the spill-over effect due to the strong pull effect of the service sector on other sectors. A further decomposition into the ESE reveals that the electricity and heating sector accounts for the largest percentage, with the coal-mining and washing sector second.

Yanqing Xia

2012-01-01T23:59:59.000Z

308

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

SciTech Connect

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

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

2007-09-24T23:59:59.000Z

309

Environmental Analysis  

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

Environmental Analysis is used by the Program to quantify the environmental impacts of hydrogen technologies. Specifically, life cycle assessment is used to identify and evaluate the emissions,...

310

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

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

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

311

Propagation of nonlinearly generated harmonic spin waves in microscopic stripes  

SciTech Connect

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

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

2014-02-07T23:59:59.000Z

312

Harmonic mean, the Gamma factor and Speed of Light  

E-Print Network (OSTI)

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

Chandru Iyer

2008-11-05T23:59:59.000Z

313

Harmonization of initial estimates of shale gas life cycle greenhouse gas emissions for electric power generation  

Science Journals Connector (OSTI)

...rock allow for the release and collection of the natural gas. Fracking can be done in vertical or horizontal wells. Liquids...methods to increase gas flows, such as mechanical or chemical fracking, is often required before the wells are able to produce commercial...

Garvin A. Heath; Patrick ODonoughue; Douglas J. Arent; Morgan Bazilian

2014-01-01T23:59:59.000Z

314

Harmonization of initial estimates of shale gas life cycle greenhouse gas emissions for electric power generation  

Science Journals Connector (OSTI)

...collection of the natural gas. Fracking can be done in vertical...as mechanical or chemical fracking, is often required...C (2011) The greenhouse impact of unconventional gas...Subgroup of the Operations and Environment Task Group of the National...

Garvin A. Heath; Patrick ODonoughue; Douglas J. Arent; Morgan Bazilian

2014-01-01T23:59:59.000Z

315

Cambridge Centre for Analysis PhD course 2013  

E-Print Network (OSTI)

: PDEs, harmonic analysis, stochastic analysis, computational analysis · Fully funded places for UK Systems · Real Analysis · Complex Analysis · Functional Analysis · Fourier Analysis · Measure Theory Analysis (c) Computational Analysis ·Supplementary courses ·Two mini-projects Each student is assigned

Wirosoetisno, Djoko

316

Energy-Related Carbon Emissions in Manufacturing  

U.S. Energy Information Administration (EIA) Indexed Site

Energy Energy-Related Carbon Emissions Energy Energy-Related Carbon Emissions Detailed Energy-Related Carbon Emissions All Industry Groups 1994 emissions Selected Industries Petroleum refining Chemicals Iron & Steel Paper Food Stone, clay and glass Methodological Details Estimation methods Glossary Return to: Energy and GHG Analysis Efficiency Page Energy Use in Manufacturing Energy-Related Carbon Emissions in Manufacturing Manufacturing, which accounts for about 80 percent of industrial energy consumption, also accounts for about 80 percent of industrial energy-related carbon emissions. (Agriculture, mining, forestry, and fisheries account for the remaining 20 percent.) In 1994, three industries, petroleum, chemicals, and primary metals, emitted almost 60 percent of the energy-related carbon in manufacturing. The next three largest emitters (paper, food, and the stone, glass, and clay products industry) produced an additional 22 percent of the energy-related manufacturing emissions (Figure 1).

317

Field emission study of cobalt ion implanted porous silicon  

E-Print Network (OSTI)

Analysis . Field Emission Measurements of Cobalt Implanted Porous Silicon Differences between the 1mplanted Porous Silicon Field Emission Devioe and the Al-anode Oxidized Porous Silicon Field Emission Diode VII CONCLUSION 70 94 99 REFERENCES... Emission Diode (OPSFED) was developed and studied [8] . The OPSFED was using the irregularity on the interface between the oxidized porous silicon film and silicon substrate as field emission cathodes, and a thin aluminum layer deposited...

Liu, Hongbiao

2012-06-07T23:59:59.000Z

318

Evaluate Buildings Greenhouse Gas Emissions Contribution by Program  

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

When prioritizing building types and sites for evaluating greenhouse gas (GHG) emissions, Federal agencies should first determine which programs contribute the most to their total building greenhouse gas (GHG) emissions and focus their analysis on those programs.

319

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

Science Journals Connector (OSTI)

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

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

2014-11-12T23:59:59.000Z

320

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

E-Print Network (OSTI)

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

Tu, Wen-Hua

2009-05-15T23:59:59.000Z

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


321

Determine Largest Mobile Greenhouse Gas Emission Sources  

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

For the purposes of portfolio planning, a Federal agency's first data analysis step is to determine which mobile emissions sources represent the largest contributors to the agency's overall greenhouse gas (GHG) emissions. Agencies can use agency-level data to determine which fleets/locations, which vehicle assets (e.g., fleet vehicles, non-fleet equipment, etc.), and which fuel types are producing the largest amounts of emissions.

322

EIA - Greenhouse Gas Emissions - Nitrous Oxide Emissions  

Gasoline and Diesel Fuel Update (EIA)

4. Nitrous Oxide Emissions 4. Nitrous Oxide Emissions 4.1 Total emissions U.S. nitrous oxide emissions in 2009 were 4 MMTCO2e (1.7 percent) below their 2008 total (Table 22). Sources of U.S. nitrous oxide emissions include agriculture, energy use, industrial processes, and waste management (Figure 22). The largest source is agriculture (73 percent), and the majority of agricultural emissions result from nitrogen fertilization of agricultural soils (87 percent of the agriculture total) and management of animal waste (13 percent). U.S. nitrous oxide emissions rose from 1990 to 1994, fell from 1994 to 2002, and returned to an upward trajectory from 2003 to 2007, largely as a result of increased use of synthetic fertilizers. Fertilizers are the primary contributor of emissions from nitrogen fertilization of soils, which grew by more than 30 percent from

323

Cover image High-harmonic generation could be  

E-Print Network (OSTI)

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

Loss, Daniel

324

Born-Oppenheimer approximation for a harmonic molecule  

E-Print Network (OSTI)

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

Francisco M. Fernandez

2008-10-13T23:59:59.000Z

325

Synchronized Video: An Interface for Harmonizing Video with Body Movements  

E-Print Network (OSTI)

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

Yamamoto, Hirosuke

326

Excitation of electron Langmuir frequency harmonics in the solar atmosphere  

SciTech Connect

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

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

2013-05-15T23:59:59.000Z

327

Theory of passive harmonic mode-locking using waveguide arrays  

E-Print Network (OSTI)

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

328

Optical Third-Harmonic Coefficients for Inert Gases  

Science Journals Connector (OSTI)

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

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

1971-11-01T23:59:59.000Z

329

Generation of harmonics and supercontinuum in nematic liquid crystals  

SciTech Connect

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

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

2013-02-28T23:59:59.000Z

330

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

SciTech Connect

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

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

2011-03-07T23:59:59.000Z

331

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

SciTech Connect

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

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

2012-04-30T23:59:59.000Z

332

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

E-Print Network (OSTI)

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

Jakob Ablinger

2014-07-23T23:59:59.000Z

333

Analysis of different control strategies for the simultaneous reduction of CO2 and NOx emissions of a diesel hybrid passenger car  

Science Journals Connector (OSTI)

Different control strategies for a diesel parallel hybrid passenger car were evaluated through numerical simulations. Two different control strategies were analysed: the first focused on fuel consumption minimisation, the second on NOx emissions cuts. Each of these goals was addressed through two different methodologies, the first based on a group of heuristic laws, the second focused on the instantaneous minimisation of a cost function that takes into account both the fuel and battery energies. A first assessment of the potential of a diesel hybrid passenger car as far as fuel consumption and NOx emissions reductions are concerned was obtained.

Federico Millo; Carlo V. Ferraro; Luciano Rolando

2012-01-01T23:59:59.000Z

334

Educational Multiwavelength Atomic Emission Spectrometer  

E-Print Network (OSTI)

atomic absorption is the capability for simultaneous multielement analysis. It can be used colleges had acquired atomic absorption instruments by the year 1990.[2] In contrast, atomic emission with the acetylene-air flame source taken from an existing atomic absorption instrument. Two spectrometer units

Nazarenko, Alexander

335

Vehicle Emissions Review - 2011  

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

Emissions Review - 2011 (so far) Tim Johnson October 4, 2011 DOE DEER Conference, Detroit JohnsonTV@Corning.com 2 Summary * California LD criteria emission regs are tightening....

336

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

E-Print Network (OSTI)

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

Berning, Torsten

337

Second-and third-harmonic generation with vector Gaussian beams  

E-Print Network (OSTI)

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

Teich, Malvin C.

338

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

E-Print Network (OSTI)

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

Tentzeris, Manos

339

Three-particle cumulant Study of Conical Emission  

E-Print Network (OSTI)

We discuss the sensitivity of the three-particle azimuthal cumulant method for a search and study of conical emission in central relativistic $A+A $ collisions. Our study is based on a multi-component Monte Carlo model which include flow background, Gaussian mono-jets, jet-flow, and Gaussian conical signals. We find the observation of conical emission is hindered by the presence of flow harmonics of fourth order ($v_4 $) but remains feasible even in the presence of a substantial background. We consider the use of probability cumulants for the suppression of 2$^{nd}$ order flow harmonics. We find that while probability cumulant significantly reduce $v_2^2$ contributions, they also complicate the cumulant of jets, and conical emission. The use of probability cumulants is therefore not particularly advantageous in searches for conical emission. We find the sensitivity of the (density) cumulant method depends inextricably on strengths of $v_2 $, $v_4 $, background and non-Poisson character of particle production. It thus cannot be expressed in a simple form, and without specific assumptions about the values of these parameters.

Claude Pruneau

2009-01-07T23:59:59.000Z

340

Search for Bursts of Gamma-Ray Emission from the Crab Pulsar in the Cos-B Data by Adaptive Cluster Analysis  

Science Journals Connector (OSTI)

The photon arrival times detected by COS-B around the direction of the Crab pulsar have been analyzed by an adaptive cluster method in order to search for short bursts of gamma-ray emission from the source. As a ...

R. Buccheri; M. Busetta; C. M. Carollo

1989-01-01T23:59:59.000Z

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


341

Comparative analysis of the production costs and life-cycle GHG emissions of FT liquid fuels from coal and natural gas  

SciTech Connect

Liquid transportation fuels derived from coal and natural gas could help the United States reduce its dependence on petroleum. The fuels could be produced domestically or imported from fossil fuel-rich countries. The goal of this paper is to determine the life-cycle GHG emissions of coal- and natural gas-based Fischer-Tropsch (FT) liquids, as well as to compare production costs. The results show that the use of coal- or natural gas-based FT liquids will likely lead to significant increases in greenhouse gas (GHG) emissions compared to petroleum-based fuels. In a best-case scenario, coal- or natural gas-based FT-liquids have emissions only comparable to petroleum-based fuels. In addition, the economic advantages of gas-to-liquid (GTL) fuels are not obvious: there is a narrow range of petroleum and natural gas prices at which GTL fuels would be competitive with petroleum-based fuels. CTL fuels are generally cheaper than petroleum-based fuels. However, recent reports suggest there is uncertainty about the availability of economically viable coal resources in the United States. If the U.S. has a goal of increasing its energy security, and at the same time significantly reducing its GHG emissions, neither CTL nor GTL consumption seem a reasonable path to follow. 28 refs., 2 figs., 4 tabs.

Paulina Jaramillo; W. Michael Griffin; H. Scott Matthews [Carnegie Mellon University, Pittsburgh, PA (USA). Civil and Environmental Engineering Department

2008-10-15T23:59:59.000Z

342

EIA - Greenhouse Gas Emissions - Carbon Dioxide Emissions  

Gasoline and Diesel Fuel Update (EIA)

2. Carbon Dioxide Emissions 2. Carbon Dioxide Emissions 2.1. Total carbon dioxide emissions Annual U.S. carbon dioxide emissions fell by 419 million metric tons in 2009 (7.1 percent), to 5,447 million metric tons (Figure 9 and Table 6). The annual decrease-the largest over the 19-year period beginning with the 1990 baseline-puts 2009 emissions 608 million metric tons below the 2005 level, which is the Obama Administration's benchmark year for its goal of reducing U.S. emissions by 17 percent by 2020. The key factors contributing to the decrease in carbon dioxide emissions in 2009 included an economy in recession with a decrease in gross domestic product of 2.6 percent, a decrease in the energy intensity of the economy of 2.2 percent, and a decrease in the carbon intensity of energy supply of

343

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

SciTech Connect

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

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

2011-07-10T23:59:59.000Z

344

Enforcing Emissions Trading when Emissions Permits are Bankable  

Science Journals Connector (OSTI)

We propose enforcement strategies for emissions trading programs with bankable emissions permits that guarantee...

John K. Stranlund; Christopher Costello

2005-09-01T23:59:59.000Z

345

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

SciTech Connect

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

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

2009-04-15T23:59:59.000Z

346

Multiwavelength Thermal Emission  

E-Print Network (OSTI)

Multiwavelength Astronomy NASA #12;Thermal Emission #12;Thermal Emission Non-thermal p-p collisions Optical IR Radio/ Microwave sources of emission massive stars, WHIM, Ly many dust, cool objects-ray ~GeV Gamma-ray ~TeV sources of emission AGN, clusters, SNR, binaries, stars AGN (obscured), shocks

California at Santa Cruz, University of

347

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

SciTech Connect

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

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

2007-06-15T23:59:59.000Z

348

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

SciTech Connect

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

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

1996-01-01T23:59:59.000Z

349

The 2.35 year itch of Cygnus OB2#9 III. X-ray and radio emission analysis based on three dimensional hydrodynamical modelling  

E-Print Network (OSTI)

X-ray and radio data recently acquired as part of a project to study Cyg OB2#9 are used to constrain physical models of the binary system, providing in-depth knowledge about the wind-wind collision and the thermal, and non-thermal, emission arising from the shocks. We use a three-dimensional, adaptive mesh refinement simulation (including wind acceleration, radiative cooling, and the orbital motion of the stars) to model the gas dynamics of the wind-wind collision. The simulation output is used as the basis for radiative transfer calculations considering the thermal X-ray emission and the thermal/non-thermal radio emission. To obtain good agreement with the X-ray observations, our initial mass-loss rate estimates require a down-shift by a factor of roughly 7.7 to $6.5\\times10^{-7}$ and $7.5\\times10^{-7}$ solar mass per year for the primary and secondary star, respectively. Furthermore, the low gas densities and high shock velocities in Cyg OB2#9 are suggestive of unequal electron and ion temperatures, and the...

Parkin, E R; Naz, Y; Blomme, R

2014-01-01T23:59:59.000Z

350

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

E-Print Network (OSTI)

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

Nikolay Kuznetsov; Oleg Motygin

2014-10-22T23:59:59.000Z

351

NETL: CO2 Emissions Control  

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

Home > Technologies > Coal & Power Systems > Innovations for Existing Plants > CO2 Emissions Control Home > Technologies > Coal & Power Systems > Innovations for Existing Plants > CO2 Emissions Control Innovations for Existing Plants CO2 Emissions Control RD&D Roadmap Technology Update DOE/NETL Advanced CO2 Capture R&D Program: Technology Update DOE/NETL Advanced CO2 Capture R&D Program Accomplishments DOE/NETL Carbon Dioxide Capture and Storage RD&D Roadmap 2013 NETL CO2 Capture Technology Meeting Presentations DOE/NETL's Monthly Carbon Sequestration Newsletter Program Goals and Targets Pre-Combustion CO2 Control Post-Combustion CO2 Control Advanced Combustion CO2 Compression Other Systems Analysis Regulatory Drivers Reference Shelf Carbon capture involves the separation of CO2 from coal-based power plant flue gas or syngas. There are commercially available 1st-Generation CO2

352

Using Coupled Harmonic Oscillators to Model Some Greenhouse Gas Molecules  

SciTech Connect

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

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

2010-07-28T23:59:59.000Z

353

Density operator and entropy of the damped quantum harmonic oscillator  

E-Print Network (OSTI)

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

A. Isar

2005-08-18T23:59:59.000Z

354

First observation of a near-harmonic vibrational nucleus  

Science Journals Connector (OSTI)

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

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

1987-08-03T23:59:59.000Z

355

Democratic Republic of Congo-Low Emission Capacity Building Programme...  

Open Energy Info (EERE)

Land Use, People and Policy, Transportation, Water Power Topics Background analysis, GHG inventory, Implementation, Low emission development planning, -LEDS, -NAMA, Policies...

356

Characterization of Particulate Emissions from GDI Engine Combustion...  

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

Emissions from GDI Engine Combustion with Alcohol-blended Fuels Analysis showed that gasoline direct injection engine particulates from alcohol-blended fuels are significantly...

357

Source Emissions and Transport  

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

electron micrograph image, Lara Gundel with instrumentation electron micrograph image, Lara Gundel with instrumentation Source Emissions and Transport Investigators conduct research here to characterize and better understand the sources of airborne volatile, semi-volatile and particulate organic pollutants in the indoor environment. This research includes studies of the physical and chemical processes that govern indoor air pollutant concentrations and exposures. The motivation is to contribute to the reduction of potential human health effects. Contacts Randy Maddalena RLMaddalena@lbl.gov (510) 486-4924 Mark Mendell MJMendell@lbl.gov (510) 486-5762 Links Pollutant Sources, Dynamics and Chemistry Group Batteries and Fuel Cells Buildings Energy Efficiency Electricity Grid Energy Analysis Energy Technologies Environmental Impacts

358

Quantifying Greenhouse Gas Emissions from Transit | Open Energy Information  

Open Energy Info (EERE)

Quantifying Greenhouse Gas Emissions from Transit Quantifying Greenhouse Gas Emissions from Transit Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Quantifying Greenhouse Gas Emissions from Transit Agency/Company /Organization: American Public Transportation Association Focus Area: GHG Inventory Development Topics: Analysis Tools Resource Type: Reports, Journal Articles, & Tools Website: www.aptastandards.com/Portals/0/SUDS/SUDSPublished/APTA_Climate_Change This Recommended Practice provides guidance to transit agencies for quantifying their greenhouse gas emissions, including both emissions generated by transit and the potential reduction of emissions through efficiency and displacement How to Use This Tool This tool is most helpful when using these strategies: Shift - Change to low-carbon modes

359

Mexico - Greenhouse Gas Emissions Baselines and Reduction Potentials from  

Open Energy Info (EERE)

Greenhouse Gas Emissions Baselines and Reduction Potentials from Greenhouse Gas Emissions Baselines and Reduction Potentials from Buildings Jump to: navigation, search Name Mexico - Greenhouse Gas Emissions Baselines and Reduction Potentials from Buildings Agency/Company /Organization United Nations Environment Programme Sector Energy Focus Area Buildings Topics Baseline projection, GHG inventory, Pathways analysis, Background analysis Resource Type Publications Website http://www.unep.org/sbci/pdfs/ Country Mexico Central America References Greenhouse Emissions Baselines and Reduction Potentials for Buildings[1] Mexico - Greenhouse Gas Emissions Baselines and Reduction Potentials from Buildings Screenshot "This report represents the first comprehensive description of the factors that determine the present and future impacts of residential and commercial

360

Excitation wavelength dependence of water-window line emissions from boron-nitride laser-produced plasmas  

SciTech Connect

We investigated the effects of laser excitation wavelength on water-window emission lines of laser-produced boron-nitride plasmas. Plasmas are produced by focusing 1064 nm and harmonically generated 532 and 266 nm radiation from a Nd:YAG laser on BN target in vacuum. Soft x-ray emission lines in the water-window region are recorded using a grazing-incidence spectrograph. Filtered photodiodes are used to obtain complementary data for water-window emission intensity and angular dependence. Spectral emission intensity changes in nitrogen Ly-{alpha} and He-{alpha} are used to show how laser wavelength affects emission. Our results show that the relative intensity of spectral lines is laser wavelength dependent, with the ratio of Ly-{alpha} to He-{alpha} emission intensity decreasing as laser wavelength is shortened. Filtered photodiode measurements of angular dependence showed that 266 and 532 nm laser wavelengths produce uniform emission.

Crank, M.; Harilal, S. S.; Hassan, S. M.; Hassanein, A. [Center for Materials Under Extreme Environment, School of Nuclear Engineering, Purdue University, West Lafayette, Indiana 47907 (United States)

2012-02-01T23:59:59.000Z

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


361

High-Energy Gamma-Ray Emission From Solar Flares: Summary of Fermi LAT Detections and Analysis of Two M-Class Flares  

E-Print Network (OSTI)

We present the detections of 19 solar flares detected in high-energy gamma rays (above 100 MeV) with the Fermi Large Area Telescope (LAT) during its first four years of operation. Interestingly, all flares are associated with fairly fast Coronal Mass Ejections (CMEs) and are not all powerful X-ray flares. We then describe the detailed temporal, spatial and spectral characteristics of the first two long-lasting events: the 2011 March 7 flare, a moderate (M3.7) impulsive flare followed by slowly varying gamma-ray emission over 13 hours, and the 2011 June 7 M2.5 flare, which was followed by gamma-ray emission lasting for 2 hours. We compare the Fermi-LAT data with X-ray and proton data measurements from GOES and RHESSI. We argue that a hadronic origin of the gamma rays is more likely than a leptonic origin and find that the energy spectrum of the proton distribution softens after the 2011 March 7 flare, favoring a scenario with continuous acceleration at the flare site. This work suggests that proton acceleratio...

,

2013-01-01T23:59:59.000Z

362

Beyond Tailpipe Emissions  

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

Beyond Tailpipe Emissions Beyond Tailpipe Emissions Greenhouse Gas Emissions for Electric and Plug-In Hybrid Electric Vehicles Driving your vehicle can yield both greenhouse gas (GHG) emissions from your vehicle's tailpipe and GHG emissions related to the production of the fuel used to power your vehicle. For example, activities associated with fuel production such as feedstock extraction, feedstock transport to a processing plant, and conversion of feedstock to motor fuel, as well as distribution of the motor fuel, can all produce GHG emissions. The Fuel Economy and Environment Label provides a Greenhouse Gas Rating, from 1 (worst) to 10 (best), based on the vehicle's tailpipe carbon dioxide emissions only, and this rating does not reflect any GHG emissions associated with fuel production.

363

Emissions from Ships  

Science Journals Connector (OSTI)

...Turbine and Diesel) Engine Exhaust Emission...of relative fuel consumption. For commercial...Marine Diesel Engine and Gas Turbine...Turbine and Diesel) Engine Exhaust Emission...of relative fuel consumption. For commercial...

James J. Corbett; Paul Fischbeck

1997-10-31T23:59:59.000Z

364

Introduction to Emissions Trading  

Science Journals Connector (OSTI)

This chapter constitutes an introduction to emissions trading. First, we detail the latest developments ... Second, we introduce the main characteristics of emissions trading, be it in terms of spatial and...2 al...

Dr. Julien Chevallier

2012-01-01T23:59:59.000Z

365

Evaluate Greenhouse Gas Emissions Profile  

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

Evaluating a Federal agency's greenhouse gas (GHG) emissions profile means getting a solid understanding of the organization's largest emission categories, largest emission sources, and its potential for improvement.

366

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

SciTech Connect

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

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

2009-10-15T23:59:59.000Z

367

Rapid Assessment of City Emissions (RACE): Case of Batangas City,  

Open Energy Info (EERE)

Rapid Assessment of City Emissions (RACE): Case of Batangas City, Rapid Assessment of City Emissions (RACE): Case of Batangas City, Philippines Jump to: navigation, search Tool Summary Name: Rapid Assessment of City Emissions (RACE): Case of Batangas City, Philippines Agency/Company /Organization: International Resources Group (IRG), Clean Air Asia, Chreod Ltd. Partner: United States Agency for International Development (USAID), Ministry of Planning Sector: Land Focus Area: Buildings, Economic Development, Energy Efficiency, Greenhouse Gas, Land Use, People and Policy, Transportation Topics: Background analysis, Baseline projection, Co-benefits assessment, - Environmental and Biodiversity, GHG inventory, Low emission development planning, -LEDS, Market analysis, Pathways analysis, Policies/deployment programs Resource Type: Case studies/examples

368

South Africa-Promoting Low Emission Urban Development Strategies in  

Open Energy Info (EERE)

South Africa-Promoting Low Emission Urban Development Strategies in South Africa-Promoting Low Emission Urban Development Strategies in Emerging Economy Countries (URBAN-LEDS) Jump to: navigation, search Name South Africa-Promoting Low Emission Urban Development Strategies in Emerging Economy Countries (URBAN-LEDS) Agency/Company /Organization ICLEI - Local Governments for Sustainability, European Commission, UN Habitat Sector Climate, Energy Focus Area Renewable Energy, Buildings, Buildings - Commercial, Buildings - Residential, People and Policy Topics Adaptation, Background analysis, Baseline projection, Low emission development planning, -LEDS, Market analysis, Pathways analysis, Policies/deployment programs Website http://www.iclei.org/fileadmin Program Start 2012 Program End 2015 Country South Africa Southern Africa

369

Identification of Low Emissions Agricultural Pathways and Priorities for  

Open Energy Info (EERE)

Identification of Low Emissions Agricultural Pathways and Priorities for Identification of Low Emissions Agricultural Pathways and Priorities for Mitigation in Agricultural Landscapes using Integrated Assessment Modeling and Scenarios Jump to: navigation, search Name Identification of Low Emissions Agricultural Pathways and Priorities for Mitigation in Agricultural Landscapes using Integrated Assessment Modeling and Scenarios Agency/Company /Organization CGIAR's Climate Change, Agriculture and Food Security (CCAFS), Canadian International Development Agency (CIDA), the Danish International Development Agency (DANIDA), the European Union, International Fund for Agricultural Development (IFAD) Partner International Institute for Applied Systems Analysis (IIASA) Sector Land Focus Area Agriculture Topics Background analysis, Baseline projection, Low emission development planning, -LEDS, Pathways analysis, Policies/deployment programs

370

General Equilibrium Emissions Model (GEEM) | Open Energy Information  

Open Energy Info (EERE)

General Equilibrium Emissions Model (GEEM) General Equilibrium Emissions Model (GEEM) Jump to: navigation, search Tool Summary Name: General Equilibrium Emissions Model (GEEM) Agency/Company /Organization: International Institute for Sustainable Development (IISD) Sector: Climate, Energy Focus Area: Renewable Energy, Non-renewable Energy, Agriculture, Buildings, Economic Development, Energy Efficiency, Forestry, Goods and Materials, Greenhouse Gas, Industry, Offsets and Certificates, Transportation Topics: Background analysis, Baseline projection, GHG inventory, Low emission development planning, Market analysis, Pathways analysis, Policies/deployment programs, Technology characterizations Country: Kenya, Thailand UN Region: Eastern Africa, Caribbean Coordinates: 13.7240216°, 100.5798602°

371

Prognostication of energy consumption and greenhouse gas (GHG) emissions analysis of apple production in West Azarbayjan of Iran using Artificial Neural Network  

Science Journals Connector (OSTI)

Abstract The present study addresses the amount of inputoutput energy utilized in apple production in West Azarbayjan province of Iran. The environmental indices of greenhouse emissions during apple production were determined as another end of this investigation. Finally, the potential of a supervised Artificial Neural Network (ANN) approach was assessed to prognosticate the energy consumption and environmental indices of apple production in the studying location. The associated data for the production of apple were collected randomly from 100 orchardists by using a face to face questionnaire method. Energy inputs included human labor, machinery, diesel fuel, seeds, herbicide, pesticide, chemical fertilizers, manure, irrigation water and electricity. The total input and output energies of 77,064.24MJha?1 and 802,695MJha?1 were obtained for apple production in the study region where the value of total GHG emission was estimated at 1195.79kgCO2eqha?1. The results revealed that the total consumed energy input could be classified as direct energy (65.97%), and indirect energy (33.76%) or renewable energy (45.37%) and nonrenewable energy (46.97%). The modeling implementations indicated that the lowest RMSE and MAPE of 0.11 and 0.68 were obtained at 16 neurons. At this number of neurons, the best predicting model was achieved. The R2 values of 0.9879 and 0.9827 were obtained for energy input and environmental indices prediction, respectively. The promising ability of the developed ANN in this study indicates that ANN is powerful and robust tool to be served as a functional and dynamic field of studying interest in the realm of energy consumption modeling.

Hamid Taghavifar; Aref Mardani

2014-01-01T23:59:59.000Z

372

NETL: Mercury Emissions Inactive Mercury Projects  

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

Completed Mercury Projects Completed Mercury Projects View specific project information by clicking the state of interest on the map. Clickable U.S. Map ALABAMA Characterizing Toxic Emissions from Coal-Fired Power Plants Southern Research Institute The objective of this contract is to perform sampling and analysis of air toxic emissions at commercial coal-fired power plants in order to collect data that the EPA will use in their Congressionally mandated report on Hazardous Air Pollutants from Electric Utilities. CALIFORNIA Assessment of Toxic Emissions from a Coal-Fired Power Plant Utilizing an ESP Energy & Environmental Research Corporation – CA The overall objective of this project is to conduct comprehensive assessments of toxic emissions of two coal-fired electric utility power plants. The power plant that was assessed for toxic emissions during Phase I was American Electric Power Service Corporation's Cardinal Station Unit 1.

373

The carbon footprint analysis of wastewater treatment plants and nitrous oxide emissions from full-scale biological nitrogen removal processes in Spain  

E-Print Network (OSTI)

This thesis presents a general model for the carbon footprint analysis of advanced wastewater treatment plants (WWTPs) with biological nitrogen removal processes, using a life cycle assessment (LCA) approach. Literature ...

Xu, Xin, S.M. Massachusetts Institute of Technology

2013-01-01T23:59:59.000Z

374

Regulation of GHG emissions from transportation fuels: Emission quota versus emission intensity standard  

E-Print Network (OSTI)

1 ? ?) and ? respectively. GHG emissions per unit of blend1 ? ?)? i + ?? i Reduction in GHG emissions with respect toSeries RegulationofGHGemissionsfromtransportation

Rajagopal, Deepak

2010-01-01T23:59:59.000Z

375

Second-harmonic generation in subwavelength graphene waveguides  

E-Print Network (OSTI)

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

Smirnova, Daria

2014-01-01T23:59:59.000Z

376

Associated Legendre Polynomials and Spherical Harmonics Computation for Chemistry Applications  

E-Print Network (OSTI)

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

Limpanuparb, Taweetham

2014-01-01T23:59:59.000Z

377

Generalized energy equipartition in harmonic oscillators driven by active baths  

E-Print Network (OSTI)

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

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

2014-11-06T23:59:59.000Z

378

Time-dependent harmonic oscillator confined in a box  

Science Journals Connector (OSTI)

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

M. Razavy

1991-08-15T23:59:59.000Z

379

Energy cost and optimal entanglement production in harmonic chains  

Science Journals Connector (OSTI)

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

Fernando Galve and Eric Lutz

2009-03-23T23:59:59.000Z

380

Quantum Energy Teleportation with a Linear Harmonic Chain  

E-Print Network (OSTI)

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

Yasusada Nambu; Masahiro Hotta

2010-07-14T23:59:59.000Z

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


381

Quantum Energy Teleportation with a Linear Harmonic Chain  

E-Print Network (OSTI)

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

Nambu, Yasusada

2010-01-01T23:59:59.000Z

382

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

SciTech Connect

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

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

2007-11-15T23:59:59.000Z

383

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

Science Journals Connector (OSTI)

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

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

384

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

Science Journals Connector (OSTI)

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

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

385

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

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

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

386

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

E-Print Network (OSTI)

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

Yang, Wenyue

2014-01-01T23:59:59.000Z

387

Second-harmonic generation in single-mode and multimode fibers  

Science Journals Connector (OSTI)

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

Saifi, M A; Andrejco, M J

1988-01-01T23:59:59.000Z

388

State Emissions Estimates  

Gasoline and Diesel Fuel Update (EIA)

Estimates of state energy-related carbon dioxide emissions Estimates of state energy-related carbon dioxide emissions Because energy-related carbon dioxide (CO 2 ) constitutes over 80 percent of total emissions, the state energy-related CO 2 emission levels provide a good indicator of the relative contribution of individual states to total greenhouse gas emissions. The U.S. Energy Information Administration (EIA) emissions estimates at the state level for energy-related CO 2 are based on data contained in the State Energy Data System (SEDS). 1 The state-level emissions estimates are based on energy consumption data for the following fuel categories: three categories of coal (residential/commercial, industrial, and electric power sector); natural gas; and ten petroleum products including-- asphalt and road oil, aviation gasoline, distillate fuel, jet fuel, kerosene, liquefied petroleum gases

389

Low Emissions Aftertreatment and Diesel Emissions Reduction  

SciTech Connect

Detroit Diesel Corporation (DDC) has successfully completed a five-year Low Emissions Aftertreatment and Diesel Emissions Reduction (LEADER) program under a DOE project entitled: ''Research and Development for Compression-Ignition Direct-Injection Engines (CIDI) and Aftertreatment Sub-Systems''. The objectives of the LEADER Program were to: Demonstrate technologies that will achieve future federal Tier 2 emissions targets; and Demonstrate production-viable technical targets for engine out emissions, efficiency, power density, noise, durability, production cost, aftertreatment volume and weight. These objectives were successfully met during the course of the LEADER program The most noteworthy achievements in this program are listed below: (1) Demonstrated Tier 2 Bin 3 emissions target over the FTP75 cycle on a PNGV-mule Neon passenger car, utilizing a CSF + SCR system These aggressive emissions were obtained with no ammonia (NH{sub 3}) slip and a combined fuel economy of 63 miles per gallon, integrating FTP75 and highway fuel economy transient cycle test results. Demonstrated feasibility to achieve Tier 2 Bin 8 emissions levels without active NOx aftertreatment. (2) Demonstrated Tier 2 Bin 3 emissions target over the FTP75 cycle on a light-duty truck utilizing a CSF + SCR system, synergizing efforts with the DOE-DDC DELTA program. This aggressive reduction in tailpipe out emissions was achieved with no ammonia slip and a 41% fuel economy improvement, compared to the equivalent gasoline engine-equipped vehicle. (3) Demonstrated Tier 2 near-Bin 9 emissions compliance on a light-duty truck, without active NOx aftertreatment devices, in synergy with the DOE-DDC DELTA program. (4) Developed and applied advanced combustion technologies such as ''CLEAN Combustion{copyright}'', which yields simultaneous reduction in engine out NOx and PM emissions while also improving engine and aftertreatment integration by providing favorable exhaust species and temperature characteristics. These favorable emissions characteristics were obtained while maintaining performance and fuel economy. These aggressive emissions and performance results were achieved by applying a robust systems technology development methodology. This systems approach benefits substantially from an integrated experimental and analytical approach to technology development, which is one of DDCs core competencies Also, DDC is uniquely positioned to undertake such a systems technology development approach, given its vertically integrated commercial structure within the DaimlerChrysler organization. State-of-the-art analytical tools were developed targeting specific LEADER program objectives and were applied to guide system enhancements and to provide testing directions, resulting in a shortened and efficient development cycle. Application examples include ammonia/NO{sub x} distribution improvement and urea injection controls development, and were key contributors to significantly reduce engine out as well as tailpipe out emissions. Successful cooperation between DDC and Engelhard Corporation, the major subcontractor for the LEADER program and provider of state-of-the-art technologies on various catalysts, was another contributing factor to ensure that both passenger car and LD truck applications achieved Tier 2 Bin 3 emissions levels. Significant technical challenges, which highlight barriers of commercialization of diesel technology for passenger cars and LD truck applications, are presented at the end of this report.

None

2005-05-27T23:59:59.000Z

390

Determine Largest Mobile Greenhouse Gas Emission Sources | Department of  

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

Largest Mobile Greenhouse Gas Emission Sources Largest Mobile Greenhouse Gas Emission Sources Determine Largest Mobile Greenhouse Gas Emission Sources October 7, 2013 - 11:39am Addthis YOU ARE HERE Step 2 For the purposes of portfolio planning, a Federal agency's first data analysis step is to determine which mobile emissions sources represent the largest contributors to the agency's overall greenhouse gas (GHG) emissions. Agencies can use agency-level data to determine which fleets/locations, which vehicle assets (e.g., fleet vehicles, non-fleet equipment, etc.), and which fuel types are producing the largest amounts of emissions. Based on this analysis, the agency can better define which mitigation strategies will be most effective. For instance, if a single fleet comprises over half of the agency's vehicle and equipment emissions, the

391

An Analysis of the Broadband (22-3900 MHz) Radio Spectrum of HB3 (G132.7+1.3): The Detection of Thermal Radio Emission from an Evolved Supernova Remnant?  

E-Print Network (OSTI)

We present an analysis of the broadband radio spectrum (from 22 to 3900 MHz) of the Galactic supernova remnant (SNR) HB3 (G132.7+1.3). Published observations have revealed that a curvature is present in the radio spectrum of this SNR, indicating that a single synchrotron component appears is insufficient to adequately fit the spectrum. We present here a fit to this spectrum using a combination of a synchrotron component and a thermal bremsstrahlung component. We discuss properties of this latter component and estimate the ambient density implied by the presence of this component to be n \\~ 10 cm^-3. We have also analyzed extracted X-ray spectra from archived {\\it ASCA} GIS observations of different regions of HB3 to obtain independent estimates of the density of the surrounding interstellar medium (ISM). From this analysis, we have derived electron densities of 0.1-0.4 f^-1/2 cm^-3 for the ISM for the three different regions of the SNR, where f is the volume filling factor. By comparing these density estimates with the estimate derived from the thermal bremsstrahlung component, we argue that the radio thermal bremsstrahlung emission is emitted from a thin shell enclosing HB3. The presence of this thermal bremsstrahlung component in the radio spectrum of HB3 suggests that this SNR is in fact interacting with an adjacent molecular cloud associated with the HII region W3. By extension, we argue that the presence of thermal emission at radio wavelengths may be a useful tool for identifying interactions between SNRs and molecular clouds, and for estimating the ambient density near SNRs using radio continuum data.

D. Urosevic; T. Pannuti; D. Leahy

2006-12-22T23:59:59.000Z

392

Dynamics of short-pulse excitation, ionization and harmonic conversion  

SciTech Connect

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

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

1993-01-01T23:59:59.000Z

393

Perception of harmonic complexes in budgerigars (Melopsittacus undulatus)  

Science Journals Connector (OSTI)

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

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

1999-01-01T23:59:59.000Z

394

Radio frequency emission from high-pressure xenon arcs: A systematic experimental analysis of the underlying near-anode plasma instability  

SciTech Connect

High-pressure Xe discharge lamps at DC operation can show unwanted strong RF (radio-frequency) emission to beyond 1 GHz, correlated to a sharp periodic lamp-voltage instability in the near-anode plasma with a pulse repetition rate {epsilon} of 1-10 MHz. The physical origin of the instability is unclear. Here, its existence and pulse rate have been measured as a function of arc current I = 0.2-1.2 A and anode temperature T{sub a} = 1700-3400 K independently, in experimental lamps with pure-tungsten electrodes and a Xe operating pressure around p = 10 MPa. Surprisingly, the instability is not affected by I or current density j but exists if T{sub a} is lower than a threshold value around 2800-2900 K. The pulse rate {epsilon} is simply a rising linear function of the inverse anode temperature 1/T{sub a}, with only a small I-dependent correction. The average anode heat load is slightly lower in the unstable regime and possibly depends on {epsilon}. The results allow a consistent re-interpretation of earlier and present experimental observations and should be both a valuable help in practical lamp engineering and a tight constraint for future theories of this effect.

Hechtfischer, Ulrich [Philips Lighting, GBU Automotive Lamps, Technology, Philipsstrasse 8, 52068 Aachen (Germany)

2011-10-01T23:59:59.000Z

395

Analysis of C1-C16 Hydrocarbons Using Dual-Column Capillary GC: Application to Exhaust Emissions from Passenger Car and Motorcycle Engines  

Science Journals Connector (OSTI)

......the analysis of gasoline, diesel, and 2-stroke motorcycle...hydrocarbons identified by GC in the diesel engine emis sions. Of the...used on motorcycles in some markets, such engines are in a small...relative merits of gasoline and diesel exhaust on the basis of the......

C.A. Jemma; P.R. Shore; K.A. Widdicombe

1995-01-01T23:59:59.000Z

396

European Transport \\ Trasporti Europei (Year) Issue xx, Paper n x, ISSN 1825-3997 Emission Model Sensitivity Analysis: The Value of  

E-Print Network (OSTI)

Sensitivity Analysis: The Value of Smart Phone Weight-Mile Tax Truck Data Katherine E. Bell 1 , Sirisha M, travel unreliability, environmental and health concerns, and increased transport costs (Wheeler for such performance measures Corresponding author: Katherine E. Bell (bell2@pdx.edu) #12;European Transport

Bertini, Robert L.

397

Tools to support a model-based methodology for emission/immission and benefit/cost/risk analysis of wastewater systems that considers uncertainty  

Science Journals Connector (OSTI)

This paper presents a set of tools developed to support an innovative methodology to design and upgrade wastewater treatment systems in a probabilistic way. For the first step, data reconstruction, two different tools were developed, one for situations ... Keywords: Cost-benefit analysis, Grid computing, Modelling and simulation, Risk, Software tools, Wastewater treatment plant design

Lorenzo Benedetti; Davide Bixio; Filip Claeys; Peter A. Vanrolleghem

2008-08-01T23:59:59.000Z

398

Uncertainty in Future Carbon Emissions: A Preliminary Exploration Mort D. Webster  

E-Print Network (OSTI)

1 Uncertainty in Future Carbon Emissions: A Preliminary Exploration Mort D. Webster Abstract of economic-energy models are used to project future carbon emissions under various policy scenarios. Due distributions of carbon emissions from the MIT Emissions Prediction and Policy Analysis model. From the specific

399

UNDP-Low Emission Climate Resilient Development Strategies (LECRDS)  

Open Energy Info (EERE)

UNDP-Low Emission Climate Resilient Development Strategies (LECRDS) UNDP-Low Emission Climate Resilient Development Strategies (LECRDS) Guidance Manuals and Toolkits Jump to: navigation, search Tool Summary LAUNCH TOOL Name: UNDP-Low Emission Climate Resilient Development Strategies (LECRDS) Guidance Manuals and Toolkits Agency/Company /Organization: United Nations Development Programme Sector: Energy, Land, Climate Focus Area: Economic Development, Greenhouse Gas Topics: Finance, GHG inventory, Low emission development planning, Policies/deployment programs, Pathways analysis Resource Type: Guide/manual, Lessons learned/best practices Website: www.undp.org/environment/climatestrategies_toolkits.shtml Cost: Free UNDP-Low Emission Climate Resilient Development Strategies (LECRDS) Guidance Manuals and Toolkits Screenshot

400

Carbon Emissions: Food Industry  

U.S. Energy Information Administration (EIA) Indexed Site

Food Industry Food Industry Carbon Emissions in the Food Industry The Industry at a Glance, 1994 (SIC Code: 20) Total Energy-Related Emissions: 24.4 million metric tons of carbon (MMTC) -- Pct. of All Manufacturers: 6.6% Total First Use of Energy: 1,193 trillion Btu -- Pct. of All Manufacturers: 5.5% Carbon Intensity: 20.44 MMTC per quadrillion Btu Energy Information Administration, "1994 Manufacturing Energy Consumption Survey" and Emissions of Greenhouse Gases in the United States 1998 Energy-Related Carbon Emissions, 1994 Source of Carbon Carbon Emissions (million metric tons) All Energy Sources 24.4 Net Electricity 9.8 Natural Gas 9.1 Coal 4.2 All Other Sources 1.3 Energy Information Administration, "1994 Manufacturing Energy Consumption Survey" and Emissions of Greenhouse Gases in the United States 1998

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


401

Carbon Emissions: Chemicals Industry  

U.S. Energy Information Administration (EIA) Indexed Site

Chemicals Industry Chemicals Industry Carbon Emissions in the Chemicals Industry The Industry at a Glance, 1994 (SIC Code: 28) Total Energy-Related Emissions: 78.3 million metric tons of carbon (MMTC) -- Pct. of All Manufacturers: 21.1% -- Nonfuel Emissions: 12.0 MMTC Total First Use of Energy: 5,328 trillion Btu -- Pct. of All Manufacturers: 24.6% Energy Sources Used As Feedstocks: 2,297 trillion Btu -- LPG: 1,365 trillion Btu -- Natural Gas: 674 trillion Btu Carbon Intensity: 14.70 MMTC per quadrillion Btu Energy Information Administration, "1994 Manufacturing Energy Consumption Survey" and Emissions of Greenhouse Gases in the United States 1998 Energy-Related Carbon Emissions, 1994 Source of Carbon Carbon Emissions (million metric tons) All Energy Sources 78.3 Natural Gas 32.1

402

NETL: Mercury Emissions Control  

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

Home > Technologies > Coal & Power Systems > Innovations for Existing Plants > Mercury Emissions Control Home > Technologies > Coal & Power Systems > Innovations for Existing Plants > Mercury Emissions Control Innovations for Existing Plants Mercury Emissions Control NETL managed the largest funded research program in the country to develop an in-depth understanding of fossil combustion-based mercury emissions. The program goal was to develop effective control options that would allow generators to comply with regulations. Research focus areas included measurement and characterization of mercury emissions, as well as the development of cost-effective control technologies for the U.S. coal-fired electric generating industry. Control Technologies Field Testing Phase I & II Phase III Novel Concepts APCD Co-benefits Emissions Characterization

403

Carbon Emissions: Paper Industry  

U.S. Energy Information Administration (EIA) Indexed Site

Paper Industry Paper Industry Carbon Emissions in the Paper Industry The Industry at a Glance, 1994 (SIC Code: 26) Total Energy-Related Emissions: 31.6 million metric tons of carbon (MMTC) -- Pct. of All Manufacturers: 8.5% Total First Use of Energy: 2,665 trillion Btu -- Pct. of All Manufacturers: 12.3% -- Pct. Renewable Energy: 47.7% Carbon Intensity: 11.88 MMTC per quadrillion Btu Renewable Energy Sources (no net emissions): -- Pulping liquor: 882 trillion Btu -- Wood chips and bark: 389 trillion Btu Energy Information Administration, "1994 Manufacturing Energy Consumption Survey" and Emissions of Greenhouse Gases in the United States 1998 Energy-Related Carbon Emissions, 1994 Source of Carbon Carbon Emissions (million metric tons) All Energy Sources 31.6 Net Electricity 11.0

404

emissions | OpenEI  

Open Energy Info (EERE)

emissions emissions Dataset Summary Description The New Zealand Ministry of Economic Development publishes an annual Energy Outlook, which presents projections of New Zealand's future energy supply, demand, prices and greenhouse gas emissions. The principle aim of these projections is to inform the national energy debate. Included here are the model results for emissions. The spreadsheet provides an interactive tool for selecting which model results to view, and which scenarios to evaluate; full model results for each scenario are also included. Source New Zealand Ministry of Economic Development Date Released Unknown Date Updated December 15th, 2010 (4 years ago) Keywords emissions New Zealand projections Data application/vnd.ms-excel icon 2010 New Zealand emissions outlook (xls, 1.2 MiB)

405

Spectral Emission of Moving Atom  

E-Print Network (OSTI)

A renewed analysis of the H.E. Ives and G.R. Stilwell's experiment on moving hydrogen canal rays (J. Opt. Soc. Am., 1938, v.28, 215) concludes that the spectral emission of a moving atom exhibits always a redshift which informs not the direction of the atom's motion. The conclusion is also evident from a simple energy relation: atomic spectral radiation is emitted as an orbiting electron consumes a portion of its internal energy on transiting to a lower-energy state which however has in a moving atom an additional energy gain; this results in a redshift in the emission frequency. Based on auxiliary experimental information and a scheme for de Broglie particle formation, we give a vigorous elucidation of the mechanism for deceleration radiation of atomic electron; the corresponding prediction of the redshift is in complete agreement with the Ives and Stilwell's experimental formula.

J. X. Zheng-Johansson

2008-03-17T23:59:59.000Z

406

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

Science Journals Connector (OSTI)

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

Jin Yee Noh; Gil Ho Yoon

2012-11-01T23:59:59.000Z

407

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

Science Journals Connector (OSTI)

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

Yunus Uzun; Erol Kurt

2012-03-01T23:59:59.000Z

408

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

E-Print Network (OSTI)

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

Rowe, Anthony

409

HARMONIC MEASURES FOR DISTRIBUTIONS WITH FINITE SUPPORT ON THE MAPPING CLASS GROUP ARE SINGULAR  

E-Print Network (OSTI)

HARMONIC MEASURES FOR DISTRIBUTIONS WITH FINITE SUPPORT ON THE MAPPING CLASS GROUP ARE SINGULAR, converges almost surely to a point in the space P MF of projective measured foliations on the surface. This defines a harmonic measure on P MF. Here, we show that when the initial distribution has finite support

Gadre, Vaibhav

410

Degree-2 harmonics of the Earth's mass load estimated from GPS and Earth rotation data  

E-Print Network (OSTI)

Degree-2 harmonics of the Earth's mass load estimated from GPS and Earth rotation data Richard S the global network of GPS receivers. Here, the degree-2 mass load coefficients determined from GPS data harmonics of the Earth's mass load estimated from GPS and Earth rotation data, Geophys. Res. Lett., 31, L

Blewitt, Geoffrey

411

A Harmonic Potential Approach for Simultaneous Planning and Control of a Generic UAV Platform  

E-Print Network (OSTI)

A Harmonic Potential Approach for Simultaneous Planning and Control of a Generic UAV Platform Ahmad and control of a large variety of unmanned aerial vehicles (UAVs) is tackled using the harmonic potential to regulate the velocity of the UAV concerned in a manner that would propel the UAV to a target point while

Masoud, Ahmad A.

412

Using a DFIG based wind turbine for grid current harmonics filtering  

Science Journals Connector (OSTI)

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

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

2014-01-01T23:59:59.000Z

413

Modeling DFIG Using General Vector Representation in the Presence of Harmonics  

Science Journals Connector (OSTI)

In this paper, a doubly-fed induction generator (DFIG) wind turbine is modeled by using the general vector representation of voltage, current and magnetic flux in the presence of harmonics. The general vector representation provides insights into how ... Keywords: wind turbine, harmonics, general vector form, DFIG

Ziqiao Liu; Ahmed Abu-Hajar; David Wenzhong Gao

2013-04-01T23:59:59.000Z

414

Injection of harmonics generated in gas in a free-electron laser providing intense and  

E-Print Network (OSTI)

-ultraviolet to X-ray region. Recently, injection of a single-pass FEL by the third laser harmonic of a TiLETTERS Injection of harmonics generated in gas in a free-electron laser providing intense-electron lasers promise to extend this down to femtosecond timescales. The process by which free-electron lasers

Loss, Daniel

415

HARMONIC CASCADE FEL DESIGNS FOR LUX, A FACILTY FOR ULTRAFAST X-RAY SCIENCE  

E-Print Network (OSTI)

-electron laser (FEL) beamlines which use the har- monic cascade approach to produce coherent XUV & soft X-ray for an integrated system of ultrafast x-ray techniques and lasers, using laser-seeded harmonic cascade FEL's, rfHARMONIC CASCADE FEL DESIGNS FOR LUX, A FACILTY FOR ULTRAFAST X-RAY SCIENCE J. Corlett, W. Fawley

Wurtele, Jonathan

416

Harmonic filters influences regarding the power quality on high frequency electrothermal installation with electromagnetic induction  

Science Journals Connector (OSTI)

This paper presents a study regarding the functioning of a melting/hardening electrothermal installation with electromagnetic induction from the point of view of generated harmonics in the power distribution. The authors made simulations in scope of ... Keywords: electrothermal installation, harmonic, passive filters, static converter

Raluca Rob; Ioan Sora; Caius Panoiu; Manuela Panoiu

2010-01-01T23:59:59.000Z

417

Power line harmonic radiation observed by satellite: Properties and propagation through the ionosphere  

E-Print Network (OSTI)

Power line harmonic radiation observed by satellite: Properties and propagation through of power line harmonic radiation events observed by the low-altitude DEMETER spacecraft. Altogether, 88 with the largest intensities often occur off exact multiples of base power system frequency. This can be explained

Santolik, Ondrej

418

3D binary anti-commutative operadic Lax representations for harmonic oscillator  

E-Print Network (OSTI)

It is explained how the time evolution of the operadic variables may be introduced by using the operadic Lax equation. The operadic Lax representations for the harmonic oscillator are constructed in 3-dimensional binary anti-commutative algebras. As an example, an operadic Lax representation for the harmonic oscillator in the Lie algebra sl(2) is constructed.

Eugen Paal; Jyri Virkepu

2008-06-08T23:59:59.000Z

419

3D Harmonic Mapping and Tetrahedral Meshing of Brain Imaging Data  

E-Print Network (OSTI)

3D Harmonic Mapping and Tetrahedral Meshing of Brain Imaging Data Yalin Wang1 , Xianfeng Gu2 , Paul Department, Harvard University, Cambridge, MA, USA Abstract. We developed two techniques to address 3D volume algorithm finds a harmonic map from a 3-manifold to a 3D solid sphere and the second is a novel sphere

Thompson, Paul

420

Fast ion absorption of the high harmonic fast wave in the National Spherical Torus Experimenta...  

E-Print Network (OSTI)

Fast ion absorption of the high harmonic fast wave in the National Spherical Torus Experimenta... A; published online 23 April 2004 Ion absorption of the high harmonic fast wave in a spherical torus Y.-K. M profile, which promotes greater off-axis absorption where the fast ion population is small. Ion loss codes

Egedal, Jan

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


421

Fast ion absorption of the high harmonic fast wave in the National Spherical Torus Experiment a...  

E-Print Network (OSTI)

Fast ion absorption of the high harmonic fast wave in the National Spherical Torus Experiment a; published online 23 April 2004# Ion absorption of the high harmonic fast wave in a spherical torus #Y.­K. M, likely due to a larger # profile, which promotes greater off­axis absorption where the fast ion

Egedal, Jan

422

Excitation of Electron Cyclotron Harmonic Waves in Earth's Magnetotail  

E-Print Network (OSTI)

of ECH Wave Emissions in Earth's Magnetotail, J. Geophys.in Space Physics School of Earth and Space Sciences, PekingPhysics Department of Earth, Planetary and Space Sciences

Zhang, Xiaojia

2014-01-01T23:59:59.000Z

423

Reducing Diesel Engine Emissions  

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

Reducing Reducing Diesel Engine Emissions 2 0 1 0 Green TransporTaTion TechnoloGies Compared to traditional gasoline engines, diesel engines require less maintenance, generate energy more efficiently, and produce less carbon dioxide emissions. But when uncontrolled, diesel engines churn out harmful emissions like particu- late matter (PM) and nitrogen oxides (NO x ). Researchers at Argonne National Laboratory are currently working to develop

424

Saving Fuel, Reducing Emissions  

E-Print Network (OSTI)

would in turn lower PHEV fuel costs and make them morestretches from fossil-fuel- powered conventional vehiclesbraking, as do Saving Fuel, Reducing Emissions Making Plug-

Kammen, Daniel M.; Arons, Samuel M.; Lemoine, Derek M.; Hummel, Holmes

2009-01-01T23:59:59.000Z

425

Vehicle Emissions Review - 2012  

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

Vehicle Emissions Review - 2012 Tim Johnson October 16, 2012 2 Environmental Technologies Summary * Regulations - LEVIII finalized, Tier 3? RDE in Europe developing and very...

426

EMSL - emission spectra  

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

emission-spectra en Structures and Stabilities of (MgO)n Nanoclusters. http:www.emsl.pnl.govemslwebpublicationsstructures-and-stabilities-mgon-nanoclusters

427

E-Print Network 3.0 - analysis fourier Sample Search Results  

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

<< < 1 2 3 4 5 > >> 1 Harmonic Analysis (I) e-mail fang@math.ncku.edu.tw Summary: transform on the line and the related Fourier analysis We expect to grab the basic idea and...

428

Angular Moment Analysis of Correlations  

E-Print Network (OSTI)

For analyzing anisotropic low relative-velocity correlation-functions and the associated emission sources, we propose an expansion in terms of cartesian spherical harmonics. The expansion coefficients represent angular moments of the investigated functions. The respective coefficients for the correlation and source are directly related to each other via one-dimensional integral transforms. The shape features of the source may be partly read off from the respective features of the correlation function and can be, otherwise, imaged.

P. Danielewicz; S. Pratt

2005-04-18T23:59:59.000Z

429

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

SciTech Connect

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

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

2009-03-16T23:59:59.000Z

430

Analysis of the Coal Sector under Carbon Constraints  

E-Print Network (OSTI)

Application of the MIT Emissions Prediction and Policy Analysis (EPPA) model to assessment of the future

McFarland, James R.

431

Harmonization of Road Signs for Electric Vehicle Charging Stations  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

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

432

Experimental investigation and model development for a harmonic drive transmission.  

SciTech Connect

Harmonic drive transmissions (HDTs) are compact, low-backlash, high-ratio, high-resolution rotary motion transmissions. One application to benefit from these attributes is the revolute joint robot. Engineers at the Advanced Photon Source (APS) are investigating the use of this type of robot for the positioning of an x-ray detector; understanding the properties of the robot components is crucial to modeling positioner behavior. The robot bearing elements had been investigated previously, leaving the transmission as the missing component. While the benefits of HDTs are well known, the disadvantages, including fluctuating dissipation characteristics and nonlinear stiffness, are not understood as well. These characteristics can contribute uncontrolled dynamics to the overall robot performance. A dynamometer has been constructed at the APS to experimentally measure the HDT's response. Empirical torque and position data were recorded for multiple transmission load cases and input conditions. In turn, a computer model of the dynamometer HDT system was constructed to approximate the observed response.

Preissner, C.; Shu, D.; Royston, T. J.; Univ. of Illinois at Chicago

2007-01-01T23:59:59.000Z

433

Absorption by cold Fermi atoms in a harmonic trap  

E-Print Network (OSTI)

We study the absorption spectrum for a strongly degenerate Fermi gas confined in a harmonic trap. The spectrum is calculated using both the exact summation and also the Thomas-Fermi (TF) approximation. In the latter case, relatively simple analytical expressions are obtained for the absorption lineshape at large number of trapped atoms. At zero temperature, the approximated lineshape is characterized by a $(1-z^2)^{5/2}$ dependence which agrees well with the exact numerical calculations. At non-zero temperature, the spectrum becomes broader, although remains non-Gaussian as long as the fermion gas is degenerate. The changes in the trap frequency for an electronically excited atom can introduce an additional line broadening.

Gediminas Juzeliunas; Marius Masalas

2000-11-10T23:59:59.000Z

434

High performance control of harmonic instability from HVDC link system  

SciTech Connect

This paper investigates the usefulness of novel control method for HVDC link system which suffers from severe condition of low order harmonic. This control scheme is used the feedforward control method which is directly controlled dc current at dc link system. The studies of this paper are aimed to improving the dynamic response of HVdc link system in disturbances such as faults. To achieve those objectives, digital time domain simulations are employed by the electro magnetic transient program for dc system (EMTDC). This method results in stable recovery from faults at both rectifier and inverter terminal busbars for a HVdc system that is inherently unstable. It has been found to be robust and control performance has been enhanced.

Min, W.K.; Yoo, M.H. [Korea Electric Power Research Inst., Taejeon (Korea, Republic of)

1995-12-31T23:59:59.000Z

435

Catalysts for Lean Engine Emission Control - Emissions & Emission Controls  

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

Catalysts for Lean Engine Emission Control Catalysts for Lean Engine Emission Control Catalysts for controlling NOx from lean engines are studied in great detail at FEERC. Lean NOx Traps (LNTs) and Selective Catalytic Reduction (SCR) are two catalyst technologies of interest. Catalysts are studied from the nanoscale to full scale. On the nanoscale, catalyst powders are analyzed with chemisorptions techniques to determine the active metal surface area where catalysis occurs. Diffuse Reflectance Infrared Fourier Transform (DRIFT) spectroscopy is used to observe the chemical reactions occurring on the catalyst surface during catalyst operation. Both powder and coated catalyst samples are analyzed on bench flow reactors in controlled simulated exhaust environments to better characterize the chemical

436

Air Emission Inventory for the INEEL -- 1999 Emission Report  

SciTech Connect

This report presents the 1999 calendar year update of the Air Emission Inventory for the Idaho National Engineering and Environmental Laboratory (INEEL). The INEEL Air Emission Inventory documents sources and emissions of nonradionuclide pollutants from operations at the INEEL. The report describes the emission inventory process and all of the sources at the INEEL, and provides nonradionuclide emissions estimates for stationary sources.

Zohner, Steven K

2000-05-01T23:59:59.000Z

437

Data Acquisition in a High Harmonic Generation Lab and at LCLS  

SciTech Connect

In this paper, we examine data acquisition in a high harmonic generation (HHG) lab and preliminary data analysis with the Cyclohexadiene Collaboration at the Linac Coherent Lightsource (LCLS) at SLAC National Accelerator Laboratory. HHG experiments have a large number of parameters that need to be monitored constantly. In particular, the pressure of the target is critical to HHG yield. However, this pressure can fluctuate wildly and without a tool to monitor it, it is difficult to analyze the correlation between HHG yield and the pressure. I used the Arduino microcontroller board and created a complementary MATLAB graphical user interface (GUI), thereby enhancing the ease with which users can acquire time-stamped parameter data. Using the Arduino, it is much easier to match the pressure to the corresponding HHG yield. Collecting data by using the Arduino and the GUI is flexible, user-friendly, and cost-effective. In the future, we hope to be able to control and monitor parts of the lab with the Arduino alone. While more parameter information is needed in the HHG lab, we needed to reduce the amount of data during the cyclohexadiene collaboration. This was achieved by sorting the data into bins and filtering out unnecessary details. This method was highly effective in that it minimized the amount of data without losing any valuable information. This effective preliminary data analysis technique will continue to be used to decrease the size of the collected data.

Hirokawa, Takako; /U. Colorado, Boulder /SLAC; ,

2011-06-22T23:59:59.000Z

438

A Millimeter-wave Harmonic Optoelectronic Mixer based on InAlAs/InGaAs Metamorphic HEMT  

E-Print Network (OSTI)

A Millimeter-wave Harmonic Optoelectronic Mixer based on InAlAs/InGaAs Metamorphic HEMT ChangAs substrate as a harmonic optoelectronic mixer. The fabricated metamorphic HEMT simultaneously performs photodetection at 1.55µµµµm lightwave and harmonic optoelectronic up-conversion into millimeter-wave band

Choi, Woo-Young

439

Characteristics of InP HEMT Harmonic Optoelectronic Mixers and Their Application to 60GHz Radio-on-Fiber Systems  

E-Print Network (OSTI)

. #12;Characteristics of InP HEMT Harmonic Optoelectronic Mixers and Their Application to 60GHz device characteristics of InP HEMT as a harmonic optoelectronic mixer. A single InP HEMT device performs is successfully demonstrated using InP HEMT harmonic optoelectronic mixer. Index Terms -- millimeter-wave, radio

Choi, Woo-Young

440

The pitch of a mistuned harmonic: Evidence for a template Jian-Yu Lin and William M. Hartmann  

E-Print Network (OSTI)

The pitch of a mistuned harmonic: Evidence for a template model Jian-Yu Lin and William M. Hartmann as a separate entity if the harmonic is slightly mistuned from its correct frequency. Pitch matching experiments show that the pitch of such a mistuned harmonic differs systematically from its frequency. The shift

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


441

Journal of Sound and Vibration (1990) 141(3),465-484 THE HARMONIC RESPONSE OF UNIFORM BEAMS ON  

E-Print Network (OSTI)

Journal of Sound and Vibration (1990) 141(3),465-484 THE HARMONIC RESPONSE OF UNIFORM BEAMS beams on multiple supports. The beam may be excited by single or multi-point harmonic forces or moments-rotation coupling. Use is made of the harmonic response function for an infinite beam subjected to a single

Yaman, Yavuz

442

CDIAC::Carbon Emission::Introduction  

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

Introduction Introduction Each year the Carbon Dioxide Information Analysis Center (CDIAC) generates estimates of carbon releases from fossil-fuel consumption and cement production. Emissions from fossil-fuel burning represent the largest anthropogenic source of carbon to the atmosphere and are an important contributor to elevated atmospheric CO2 levels. CDIAC produces annual fossil-fuel CO2 emission time series at global and national scales and these time series serve as building blocks for other data products including gridded (1 x 1) emission time series. Details regarding the methods used to produce these time series and data products may be found on the CDIAC website. This new interface allows users to query, visualize, and download the latest CDIAC fossil-fuel CO2 emission estimates. In the future, additional

443

Emissions through solar PV systems - a review  

Science Journals Connector (OSTI)

Photovoltaic (PV) system has been quoted for wide range of green house gas (GHG) emissions through life cycle assessment (LCA) studies. There are a variety of solar cell materials available, which vary in conversion efficiency and emission of CO2. This paper is based on the LCA analysis of PV system which starts from the production of these solar cells and goes through the stages known as transportation, installation, operational period to their disposal or recycling and tried to find out the GHG emission in all the stages separately and the environmental impact of this emission. In this paper, different improvement techniques were also suggested to reduce the impact of GHG through solar PV system.

Mohammad Ziaur Rahman

2014-01-01T23:59:59.000Z

444

NETL: IEP - Mercury Emissions Control: Emissions Characterization  

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

Control Control Emissions Characterization In anticipation of the 1990 CAAAs, specifically the draft Title III regarding the characterization of potential HAPs from electric steam generating units, DOE initiated a new Air Toxics Program in 1989. The DOE Mercury Measurement and Control Program evolved as a result of the findings from the comprehensive assessment of hazardous air pollutants studies conducted by DOE from 1990 through 1997. DOE, in collaboration with EPRI, performed stack tests at a number of coal-fired power plants (identified on map below) to accurately determine the emission rates of a series of potentially toxic chemicals. These tests had not been conducted previously because of their cost, about $1 million per test, so conventional wisdom on emissions was based on emission factors derived from analyses of coal. In general, actual emissions were found to be about one-tenth previous estimates, due to a high fraction of the pollutants being captured by existing particulate control systems. These data resulted in a decision by EPA that most of these pollutants were not a threat to the environment, and needed no further regulation at power plants. This shielded the coal-fired power industry from major (tens of millions) costs that would have resulted from further controlling these emissions. However, another finding of these studies was that mercury was not effectively controlled in coal-fired utility boiler systems. Moreover, EPA concluded that a plausible link exists between these emissions and adverse health effects. Ineffective control of mercury by existing control technologies resulted from a number of factors, including variation in coal composition and variability in the form of the mercury in flue gases. The volatility of mercury was the main contributor for less removal, as compared to the less volatile trace elements/metals which were being removed at efficiencies over 99% with the fly ash. In addition, it was determined that there was no reliable mercury speciation method to accurately distinguish between the elemental and oxidized forms of mercury in the flue gas. These two forms of mercury respond differently to removal techniques in existing air pollution control devices utilized by the coal-fired utility industry.

445

Monte-Carlo Simulation of High Harmonic Fast Wave Heating of Neutral Beam Ions and Effects on MHD Stability: Validation With Experiments  

SciTech Connect

Experimentally, during fast wave (FW) radio frequency (rf) heating in DIII-D L-mode discharges, strong acceleration of neutral beam (NB) deuterium beam ions has been observed. Significant effects on the n/m = 1/1 sawtooth stability are also seen. Simulations using the Monte-Carlo Hamiltonian code ORBIT-RF, coupled to the TORIC full wave code, predict beam ion tails up to a few hundred keV, in agreement with the experiment. The simulations and experiment both clearly show a much greater efficiency for 4th harmonic FW heating than for 8th harmonic heating. Simple analyses of the kinetic contribution to the ideal magnetohydrodynamic (MHD) potential energy from energetic beam ions generated by FW heating yields reasonable consistency with the observations. A more detailed analysis shows a more complicated picture, however. Other physics effects such as geometry, plasma rotation, and the presence of a free boundary, play a significant role.

Chan, V. S.; Turnbull, A. D.; Choi, M.; Chu, M. S.; Lao, L. L. [General Atomics, P.O. Box 85608, San Diego, California 92186-5608 (United States)

2006-11-30T23:59:59.000Z

446

MOtor Vehicle Emission Simulator (MOVES) | Open Energy Information  

Open Energy Info (EERE)

MOtor Vehicle Emission Simulator (MOVES) MOtor Vehicle Emission Simulator (MOVES) Jump to: navigation, search Tool Summary Name: MOtor Vehicle Emission Simulator (MOVES) Agency/Company /Organization: U.S. Environmental Protection Agency Focus Area: GHG Inventory Development Topics: Analysis Tools Website: www.epa.gov/otaq/models/moves/index.htm This emission modeling system estimates emissions from mobile sources, including cars, trucks, and motorcycles. The modeling tool covers a broad range of pollutants and allows multiple scale analysis. How to Use This Tool This tool is most helpful when using these strategies: Shift - Change to low-carbon modes Improve - Enhance infrastructure & policies Learn more about the avoid, shift, improve framework for limiting air pollutants and greenhouse gas emissions.

447

NREL: Energy Analysis - Sustainability Analysis  

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

Sustainability Analysis Sustainability Analysis The laboratory's Sustainability Analysis looks at the environmental, life-cycle, climate, and other impacts of renewable energy technologies. Our energy choices have global implications that affect greenhouse gas emissions, water resource distribution, mineral consumption, and equipment manufacturing and transportation. The school of thought is that renewable energy technologies are more sustainable than many current sources of energy. However, we need to verify that this is true before we miss some important opportunities. NREL's capabilities in this analysis area include: resource-use optimization techno-economic feasibility and cost analysis life cycle assessment environmental externalities analysis cobenefits analysis manufacturing cost analysis

448

NREL: Energy Analysis - Concentrating Solar Power Results - Life Cycle  

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

Concentrating Solar Power Results - Life Cycle Assessment Harmonization Concentrating Solar Power Results - Life Cycle Assessment Harmonization Life Cycle Greenhouse Gas Emissions from Concentrating Solar Power (Factsheet) Cover of the Life Cycle Greenhouse Gas Emissions from Concentrating Solar Power Download the Factsheet Flowchart that shows the life cycle stages for concentrating solar power systems. For help reading this chart, please contact the webmaster. Figure 1. Process flow diagram illustrating the life cycle stages for concentrating solar power (CSP) systems. The yellow box defined by the grey line shows the systems boundaries assumed in harmonization. Enlarge image NREL developed and applied a systematic approach to review literature on life cycle assessments of concentrating solar power (CSP) systems, identify

449

Evaluate Buildings Greenhouse Gas Emissions Contribution by Program |  

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

Evaluate Buildings Greenhouse Gas Emissions Contribution by Program Evaluate Buildings Greenhouse Gas Emissions Contribution by Program Evaluate Buildings Greenhouse Gas Emissions Contribution by Program October 7, 2013 - 10:48am Addthis When prioritizing building types and sites for evaluating greenhouse gas (GHG) emissions, Federal agencies should first determine which programs contribute the most to their total building greenhouse gas (GHG) emissions and focus their analysis on those programs. Using the total buildings energy use by program, these emissions profile can be calculated using the Federal Energy Management Program's Annual GHG and Sustainability Data Report site. In the example below, Agency ABC should focus on Programs B and C first because together they represent over 80% of building emissions. Agencies

450

Emission Properties of Eu{sup 3+} Doped Different Chlorophosphate Glasses  

SciTech Connect

Absorption and emission spectra of 0.5 mol% of Eu{sup 3+} in different chlorophosphate glasses have been studied. Judd-Ofelt analysis was performed to evaluate the emission properties such as radiative transition probabilities (A{sub rad}), branching ratios ({beta}), radiative lifetimes ({tau}{sub R}) and emission cross-sections ({sigma}{sub P}) for observed emission transitions of emission spectra of these glass matrices.

Rao, K. Venkata; Seshadri, M.; Ratnakaram, Y. C. [Sri Venkateswara University, Tirupati, A.P. (India)

2011-07-15T23:59:59.000Z

451

Theoretical studies of high-order harmonic generation: Effects of symmetry, degeneracy, and orientation  

SciTech Connect

Using a quantum-mechanical three-step model, we present numerical calculations of the high-order harmonic generation from four polyatomic molecules. Ethylene (C{sub 2}H{sub 4}) serves as an example where orbital symmetry directly affects the harmonic yield. We treat the case of methane (CH{sub 4}) to address the high-order harmonic generation resulting from a molecule with degenerate orbitals. To this end we illustrate how the single-orbital contributions show up in the total high-order harmonic signal. This example illustrates the importance of adding coherently the amplitude contributions from the individual degenerate orbitals. Finally, we study the high-order harmonic generation from propane (C{sub 3}H{sub 8}) and butane (C{sub 4}H{sub 10}). These two molecules, being extended and far from spherical in structure, produce harmonics with nontrivial orientational dependencies. In particular, propane can be oriented so that very high-frequency harmonics are favored, and thus the molecule contains prospects for the generation of uv attosecond pulses.

Madsen, C. B.; Madsen, L. B. [Lundbeck Foundation Theoretical Center for Quantum System Research, Department of Physics and Astronomy, University of Aarhus, 8000 Aarhus C (Denmark)

2007-10-15T23:59:59.000Z

452

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

SciTech Connect

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

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

2012-01-15T23:59:59.000Z

453

Nanoparticle Emissions from Internal Combustion Engines | Department...  

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

Nanoparticle Emissions from Internal Combustion Engines Nanoparticle Emissions from Internal Combustion Engines 2004 Diesel Engine Emissions Reduction (DEER) Conference...

454

Materials Applications of Photoelectron Emission Microscopy....  

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

Applications of Photoelectron Emission Microscopy. Materials Applications of Photoelectron Emission Microscopy. Abstract: Photoelectron emission microscopy (PEEM) is a versatile...

455

Spontaneous Emission Rate Enhancement Using Optical Antennas  

E-Print Network (OSTI)

of Spontaneous Emission in a Semiconductor nanoLED, emission rate enhancement using the Fluorescent Emission by Lattice Resonances in

Kumar, Nikhil

2013-01-01T23:59:59.000Z

456

Third harmonic stimulated Raman backscattering of laser in a magnetized plasma  

SciTech Connect

This article studies the nonlinear Raman shifted third harmonic backscattering of an intense extraordinary laser wave through a homogenous transversely magnetized cold plasma. Due to the relativistic nonlinearity, the plasma dynamic is modified in the presence of transversely magnetic field, and this can generate the third harmonic scattered wave and an electrostatic upper hybrid wave via the Raman scattering process. Using the nonlinear wave equation, the mechanism of nonlinear third harmonic Raman scattering is discussed in detail to obtain the maximum growth rate of instability in the mildly relativistic regime. The growth rate decreases as the static magnetic field increases. It also increases with the pump wave amplitude.

Paknezhad, Alireza [Physics Department, Shabestar Branch, Islamic Azad University, Shabestar (Iran, Islamic Republic of)] [Physics Department, Shabestar Branch, Islamic Azad University, Shabestar (Iran, Islamic Republic of); Dorranian, Davoud [Laser Lab., Plasma Physics Research Center, Science and Research Branch, Islamic Azad University, Tehran (Iran, Islamic Republic of)] [Laser Lab., Plasma Physics Research Center, Science and Research Branch, Islamic Azad University, Tehran (Iran, Islamic Republic of)

2013-09-15T23:59:59.000Z

457

Inhibition of Linear Absorption in Opaque Materials Using Phase-Locked Harmonic Generation  

Science Journals Connector (OSTI)

We theoretically predict and experimentally demonstrate inhibition of linear absorption for phase and group velocity mismatched second- and third-harmonic generation in strongly absorbing materials, GaAs, in particular, at frequencies above the absorption edge. A 100-fs pump pulse tuned to 1300nm generates 650 and 435nm second- and third-harmonic pulses that propagate across a 450-?m-thick GaAs substrate without being absorbed. We attribute this to a phase-locking mechanism that causes the pump to trap the harmonics and to impress on them its dispersive properties.

Marco Centini; Vito Roppo; Eugenio Fazio; Federico Pettazzi; Concita Sibilia; Joseph W. Haus; John V. Foreman; Neset Akozbek; Mark J. Bloemer; Michael Scalora

2008-09-11T23:59:59.000Z

458

Generation of high-power tunable terahertz-radiation by nonrelativistic beam-echo harmonic effect  

SciTech Connect

A new type of terahertz radiation source based on the nonrelativistic electron beam-wave interaction is proposed. Here, the beam echo harmonic effect is applied to a traveling wave tube like device. The scheme is configured as a combination of a frequency multiplier and amplifier with, for instance, W-band (millimeter wave) input signals and terahertz output power. A one-dimensional model of this device shows that a 10th order harmonic-wave can be generated while other harmonic waves are suppressed. The device only requires a readily available input source (W-band), and the output frequency can be tuned continuously over a wide band.

Gong Huarong; Xu Jin; Wei Yanyu; Gong Yubin [National Key Laboratory of Science and Technology on Vacuum Electronics, School of Physical Electronics, University of Electronic Science and Technology of China, Chengdu, Sichuan 610054 (China); Travish, Gil [Department of Physics and Astronomy, University of California, Los Angeles, California 90095 (United States); Feng Jinjun [Vacuum Electronics National Laboratory, Vacuum Electronics research Institute, Beijing 100016 (China)

2013-01-15T23:59:59.000Z

459

India-Promoting Low Emission Urban Development Strategies in Emerging  

Open Energy Info (EERE)

India-Promoting Low Emission Urban Development Strategies in Emerging India-Promoting Low Emission Urban Development Strategies in Emerging Economy Countries (URBAN-LEDS) Jump to: navigation, search Name India-Promoting Low Emission Urban Development Strategies in Emerging Economy Countries (URBAN-LEDS) Agency/Company /Organization ICLEI - Local Governments for Sustainability, European Commission, UN Habitat Sector Climate, Energy Focus Area Renewable Energy, Buildings, Buildings - Commercial, Buildings - Residential, People and Policy Topics Adaptation, Background analysis, Baseline projection, Low emission development planning, -LEDS, Market analysis, Pathways analysis, Policies/deployment programs Website http://www.iclei.org/fileadmin Program Start 2012 Program End 2015 Country India Southern Asia References UN-Habitat and European Commission sign major agreement on lower-emission city growth; ICLEI as main implementing partner[1]

460

Indonesia-Promoting Low Emission Urban Development Strategies in Emerging  

Open Energy Info (EERE)

Promoting Low Emission Urban Development Strategies in Emerging Promoting Low Emission Urban Development Strategies in Emerging Economy Countries (URBAN-LEDS) Jump to: navigation, search Name Indonesia-Promoting Low Emission Urban Development Strategies in Emerging Economy Countries (URBAN-LEDS) Agency/Company /Organization ICLEI - Local Governments for Sustainability, European Commission, UN Habitat Sector Climate, Energy Focus Area Renewable Energy, Buildings, Buildings - Commercial, Buildings - Residential, People and Policy Topics Adaptation, Background analysis, Baseline projection, Low emission development planning, -LEDS, Market analysis, Pathways analysis, Policies/deployment programs Website http://www.iclei.org/fileadmin Program Start 2012 Program End 2015 Country Indonesia South-Eastern Asia References UN-Habitat and European Commission sign major agreement on lower-emission city growth; ICLEI as main implementing partner[1]

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


461

Brazil-Promoting Low Emission Urban Development Strategies in Emerging  

Open Energy Info (EERE)

Brazil-Promoting Low Emission Urban Development Strategies in Emerging Brazil-Promoting Low Emission Urban Development Strategies in Emerging Economy Countries (URBAN-LEDS) Jump to: navigation, search Name Brazil-Promoting Low Emission Urban Development Strategies in Emerging Economy Countries (URBAN-LEDS) Agency/Company /Organization ICLEI - Local Governments for Sustainability, European Commission, UN Habitat Sector Climate, Energy Focus Area Renewable Energy, Buildings, Buildings - Commercial, Buildings - Residential, People and Policy Topics Adaptation, Background analysis, Baseline projection, Low emission development planning, -LEDS, Market analysis, Pathways analysis, Policies/deployment programs Website http://www.iclei.org/fileadmin Program Start 2012 Program End 2015 Country Brazil South America References UN-Habitat and European Commission sign major agreement on lower-emission city growth; ICLEI as main implementing partner[1]

462

Emission Abatement System  

DOE Patents (OSTI)

Emission abatement system. The system includes a source of emissions and a catalyst for receiving the emissions. Suitable catalysts are absorber catalysts and selective catalytic reduction catalysts. A plasma fuel converter generates a reducing gas from a fuel source and is connected to deliver the reducing gas into contact with the absorber catalyst for regenerating the catalyst. A preferred reducing gas is a hydrogen rich gas and a preferred plasma fuel converter is a plasmatron. It is also preferred that the absorber catalyst be adapted for absorbing NO.sub.x.

Bromberg, Leslie (Sharon, MA); Cohn, Daniel R. (Chestnut Hill, MA); Rabinovich, Alexander (Swampscott, MA)

2003-05-13T23:59:59.000Z

463

Advanced Clean Cars Zero Emission Vehicle Regulation  

E-Print Network (OSTI)

Advanced Clean Cars Zero Emission Vehicle Regulation ZEV #12;Advanced Clean Cars ZEV Program 2020 2021 2022 2023 2024 2025 Current Regulation -ZEVs Current Regulation -PHEVs Projected: PHEVs 15Net ­ Blueprint Plan ­ Regional clusters, environmental and economic analysis · Clean Fuels Outlet

California at Davis, University of

464

The supply chain of CO2 emissions  

Science Journals Connector (OSTI)

...analysis is based on fossil energy resources of coal, oil...emissions per unit of energy. Using trade data, these...Russia, China, and Japan together account for 59% of...Imported / y Australia China Japan US France Germany Italy...0.5 Other Direct by Households Food Products nec Textiles...

Steven J. Davis; Glen P. Peters; Ken Caldeira

2011-01-01T23:59:59.000Z

465

IS THE TAIL WAGGING THE DOG? AN EMPIRICAL ANALYSIS OF CORPORATE CARBON FOOTPRINTS AND FINANCIAL PERFORMANCE  

E-Print Network (OSTI)

No No Table 5 Panel analysis of GHG emissions on Tobins qDependent Variable Method (Model) Total GHG EmissionsDirect GHG Emissions Supply Chain GHG Emissions Controls

Delmas, Magali A; Nairn-Birch, Nicholas S.

2011-01-01T23:59:59.000Z

466

EPA Emissions | ornl.gov  

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

EPA Emissions ORNL research informs new EPA emissions standards July 11, 2014 Oak Ridge National Laboratory (ORNL) has developed a streamlined method for determining vehicle...

467

Emission Standards for Contaminants (Iowa)  

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

These regulations list emissions standards for various contaminants, and contain special requirements for anaerobic lagoons. These regulations also describe alternative emissions limits, which may...

468

EIA - Greenhouse Gas Emissions Overview  

Gasoline and Diesel Fuel Update (EIA)

Contacts Contacts This report, Emissions of Greenhouse Gases in the United States 2009, was prepared under the general direction of John Conti, Assistant Administrator for Energy Analysis, and Paul Holtberg, Team Leader, Analysis Integration Team. General questions concerning the content of this report may be directed to the Office of Communications at 202/586-8800. Technical information concerning the content of the report may be obtained from Perry Lindstrom at 202/586-0934 (email, perry.lindstrom@eia.gov). Without the assistance of Science Applications International Corporation (SAIC), this report would not have been possible. In particular we would like to thank Erin Beddingfield, Keith Forbes, Kristin Igusky, Makely Lyon, Michael Mondshine, and Richard Richards. We also wish to acknowledge the

469

System-Wide Emissions Implications of Increased Wind Power Penetration  

E-Print Network (OSTI)

and ramifications of wind power providing 20% of U.S. electricity by 2030.1 Wind energy is advantageous becauseSystem-Wide Emissions Implications of Increased Wind Power Penetration Lauren Valentino,, Viviana of incorporating wind energy into the electric power system. We present a detailed emissions analysis based

Kemner, Ken

470

Energy and GHG Emissions in British Columbia 1990 -2010  

E-Print Network (OSTI)

Energy and GHG Emissions in British Columbia 1990 - 2010 Report Highlights John Nyboer and Maximilian Kniewasser Canadian Industrial Energy End-use Data and Analysis Centre (CIEEDAC) Simon Fraser for Climate Solutions 1 HIGHLIGHTS The Energy and GHG Emissions in British

Pedersen, Tom

471

Engines - Emissions Assessment  

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

EPRI Hybrid Electric Vehicle Working Group: HEV Costs and Emissions EPRI Hybrid Electric Vehicle Working Group: HEV Costs and Emissions Hybrid electric vehicles (HEVs) are attractive options for increasing vehicle fuel economy and reducing emissions of criteria pollutants and greenhouse gases. Two automobile manufacturers have already introduced HEVs, and other manufacturers are planning to introduce their own models. One available HEV combines mass reduction (also applicable to conventional vehicles) with idle-stop, regenerative braking, and electric-drive assist to achieve a fuel economy more than 2.5 times the current Corporate Average Fuel Economy (CAFE) standard. The second HEV combines idle-stop, regenerative braking, electric assist acceleration, and continuously variable transmission (CVT) to achieve a fuel economy of more than twice the current CAFÉ standard, qualifying as a super ultra-low emissions vehicle (SULEV).

472

Gas Turbine Emissions  

E-Print Network (OSTI)

Historically, preliminary design information regarding gas turbine emissions has been unreliable, particularly for facilities using steam injection and other forms of Best Available Control Technology (BACT). This was probably attributed to the lack...

Frederick, J. D.

473

Photon enhanced thermionic emission  

DOE Patents (OSTI)

Photon Enhanced Thermionic Emission (PETE) is exploited to provide improved efficiency for radiant energy conversion. A hot (greater than 200.degree. C.) semiconductor cathode is illuminated such that it emits electrons. Because the cathode is hot, significantly more electrons are emitted than would be emitted from a room temperature (or colder) cathode under the same illumination conditions. As a result of this increased electron emission, the energy conversion efficiency can be significantly increased relative to a conventional photovoltaic device. In PETE, the cathode electrons can be (and typically are) thermalized with respect to the cathode. As a result, PETE does not rely on emission of non-thermalized electrons, and is significantly easier to implement than hot-carrier emission approaches.

Schwede, Jared; Melosh, Nicholas; Shen, Zhixun

2014-10-07T23:59:59.000Z

474

Intelligent field emission arrays  

E-Print Network (OSTI)

Field emission arrays (FEAs) have been studied extensively as potential electron sources for a number of vacuum microelectronic device applications. For most applications, temporal current stability and spatial current ...

Hong, Ching-yin, 1973-

2003-01-01T23:59:59.000Z

475

Carbon Dioxide Emissions  

Science Journals Connector (OSTI)

Abating greenhouse gas (GHG) emissions on a national level involves substantial investment efforts, though part of these may be regained soon.1 On a global level, the costs of the available options are likely to ...

Catrinus J. Jepma; Che Wah Lee

1995-01-01T23:59:59.000Z

476

Field emission electron source  

DOE Patents (OSTI)

A novel field emitter material, field emission electron source, and commercially feasible fabrication method is described. The inventive field emission electron source produces reliable electron currents of up to 400 mA/cm.sup.2 at 200 volts. The emitter is robust and the current it produces is not sensitive to variability of vacuum or the distance between the emitter tip and the cathode. The novel emitter has a sharp turn-on near 100 volts.

Zettl, Alexander Karlwalter (Kensington, CA); Cohen, Marvin Lou (Berkeley, CA)

2000-01-01T23:59:59.000Z

477

Bending waves due to a moving harmonic force.  

Science Journals Connector (OSTI)

In many structurally induced and flow?induced vibration problems the harmonic forcing function is not stationary but moves with a velocity V 0. The effect of the forcing function velocity V 0 upon the free vibrational wave?number characteristics of a membrane and a plate is analyzed. The Mach numberM is defined to be the ratio of the velocity V 0 to the wave speed of the bending waves. For the membrane the effect of the Mach number is to increase the wave number (shorter wavelength) ahead of the forcing function and to decrease the wave number (longer wavelength) behind it. At supersonic speeds no disturbances travel ahead of the forcing function and both wave numbers lead to trailing waves. These results are equivalent to the classical Doppler?shifted results. The results of the plate are more complex. The right and left traveling waves retain their basic properties with the magnitude of the wave number changing monotomically as a function of the Mach numberM. The near?field decaying disturbances also retain their basic properties but immediately obtain components that induce the decaying disturbances to become left traveling waves with decaying components. At Mach numbers greater than 2 these disturbances become pure waves trailing without any decaying factor. The importance of each of these components as a function of the Mach number is discussed.

Mauro Pierucci

1992-01-01T23:59:59.000Z

478

Energy transport by acoustic modes of harmonic lattices  

E-Print Network (OSTI)

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

Lisa Harris; Jani Lukkarinen; Stefan Teufel; Florian Theil

2006-11-21T23:59:59.000Z

479

Casimir Friction Force and Energy Dissipation for Moving Harmonic Oscillators  

E-Print Network (OSTI)

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

Johan S. Hye; Iver Brevik

2010-01-14T23:59:59.000Z

480

A continuous-wave second harmonic gyrotron oscillator at 460 GHz  

E-Print Network (OSTI)

We report the short pulse and CW operation of a 460 GHz gyrotron oscillator both at the fundamental (near 230 GHz) and second harmonic (near 460 GHz) of electron cyclotron resonance. During operation in a complete CW regime ...

Hornstein, Melissa K. (Melissa Kristen), 1977-

2005-01-01T23:59:59.000Z

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481

Two-color phase control of high-order harmonic generation in intense laser fields  

E-Print Network (OSTI)

We present a time-independent generalized Floquet approach for nonperturbative treatment of high-order harmonic generation (HG) in intense onea (i) determination of the complex quasienergy eigenvalue and eigenfunction by means of the non...

Telnov, Dmitry A.; Wang, Jingyan; Chu, Shih-I

1995-11-01T23:59:59.000Z

482

Bulk viscosity-driven suppression of shear viscosity effects on the flow harmonics at RHIC  

E-Print Network (OSTI)

The interplay between shear and bulk viscosities on the flow harmonics, $v_n$'s, at RHIC is investigated using the newly developed relativistic 2+1 hydrodynamical code v-USPhydro that includes bulk and shear viscosity effects both in the hydrodynamic evolution and also at freeze-out. While shear viscosity is known to attenuate the flow harmonics, we find that the inclusion of bulk viscosity decreases the shear viscosity-induced suppression of the flow harmonics bringing them closer to their values in ideal hydrodynamical calculations. Depending on the value of the bulk viscosity to entropy density ratio, $\\zeta/s$, in the quark-gluon plasma, the bulk viscosity-driven suppression of shear viscosity effects on the flow harmonics may require a re-evaluation of the previous estimates of the shear viscosity to entropy density ratio, $\\eta/s$, of the quark-gluon plasma previously extracted by comparing hydrodynamic calculations to heavy ion data.

J. Noronha-Hostler; J. Noronha; F. Grassi

2014-06-12T23:59:59.000Z

483

A proposed framework for harmonization of the veterinary medicine curriculum in Latin America  

E-Print Network (OSTI)

A framework for curriculum harmonization at veterinary colleges in Latin America is proposed. The framework was developed considering the expansion of knowledge, particularly in veterinary public health. Also described are the generic or process...

Ortega Meyer, Bruno de Jesus

2009-05-15T23:59:59.000Z

484

Determination of radio-frequency phase in harmonic frequency modulation spectroscopy  

Science Journals Connector (OSTI)

We have devised two useful schemes to determine the rf phase of the modulation waveforms in harmonic FM spectroscopy, a novel technique that we reported recently for the removal of...

Shum, Chi Man; Whittaker, Edward A

1991-01-01T23:59:59.000Z

485

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

SciTech Connect

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

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

1995-11-01T23:59:59.000Z

486

Spherical harmonic series solution of fields excited by vertical electric dipole in earth-ionosphere cavity  

Science Journals Connector (OSTI)

The spherical harmonic series expression of electromagnetic fields excited by ELF/SLF vertical electric dipole in the spherical earth- ... the sum of two traveling waves in the SLF band. Moreover, the results are...

Yuanxin Wang; Wensheng Fan; Weiyan Pan

2008-01-01T23:59:59.000Z

487

An alternative derivation of the equations of motion of the relativistic (an)harmonic oscillator  

Science Journals Connector (OSTI)

The equations of motion of the relativistic (an)harmonic oscillator are derived based on an alternative Lagrangian formalism of relativistic mechanics using the proper time as the evolution parameter.

Young-Sea Huang

1999-01-01T23:59:59.000Z

488

Generation of octave-spanning multiple harmonics for ultrafast waveform synthesis  

E-Print Network (OSTI)

Up to seven laser harmonics covering more than two octaves in frequency have been generated efficiently in a single PPLT crystal, permitting the synthesis of 1.5 femtosecond pulses in a stable and compact setting.

Hsu, Wei-Chun

489

Non-Abelian current oscillations in harmonic string loops: existence of throbbing vortons  

E-Print Network (OSTI)

It is shown that a string carrying a field of harmonic type can have circular vorton states of a new "throbbing" kind, for which the worldsheet geometry is stationary but the internal structure undergoes periodic oscillation.

Brandon Carter

2012-02-17T23:59:59.000Z

490

Non-Abelian current oscillations in harmonic string loops: existence of throbbing vortons  

E-Print Network (OSTI)

It is shown that a string carrying a field of harmonic type can have circular vorton states of a new "throbbing" kind, for which the worldsheet geometry is stationary but the internal structure undergoes periodic oscillation.

Carter, Brandon

2012-01-01T23:59:59.000Z

491

Wildland fire emissions, carbon, and climate: Emission factors Shawn Urbanski  

E-Print Network (OSTI)

Wildland fire emissions, carbon, and climate: Emission factors Shawn Urbanski Missoula Fire burning Greenhouse gases Emission factors a b s t r a c t While the vast majority of carbon emitted wildland fire greenhouse gas and aerosol (organic aerosol (OA) and black carbon (BC)) emission inventories

492

Generation and coherent control of even-order harmonics driven by intense frequency-comb and cavity-mode fields inside a fsEC  

E-Print Network (OSTI)

Generation and coherent control of even-order harmonics driven by intense frequency-comb and cavity) doi:10.1088/0953-4075/46/14/145403 Generation and coherent control of even-order harmonics driven, resulting in the generation of even-order harmonics. The high-order harmonic generation (HHG) from a two

Chu, Shih-I

493

Atmospheric Inverse Estimates of Methane Emissions from Central California  

SciTech Connect

Methane mixing ratios measured at a tall-tower are compared to model predictions to estimate surface emissions of CH{sub 4} in Central California for October-December 2007 using an inverse technique. Predicted CH{sub 4} mixing ratios are calculated based on spatially resolved a priori CH{sub 4} emissions and simulated atmospheric trajectories. The atmospheric trajectories, along with surface footprints, are computed using the Weather Research and Forecast (WRF) coupled to the Stochastic Time-Inverted Lagrangian Transport (STILT) model. An uncertainty analysis is performed to provide quantitative uncertainties in estimated CH{sub 4} emissions. Three inverse model estimates of CH{sub 4} emissions are reported. First, linear regressions of modeled and measured CH{sub 4} mixing ratios obtain slopes of 0.73 {+-} 0.11 and 1.09 {+-} 0.14 using California specific and Edgar 3.2 emission maps respectively, suggesting that actual CH{sub 4} emissions were about 37 {+-} 21% higher than California specific inventory estimates. Second, a Bayesian 'source' analysis suggests that livestock emissions are 63 {+-} 22% higher than the a priori estimates. Third, a Bayesian 'region' analysis is carried out for CH{sub 4} emissions from 13 sub-regions, which shows that inventory CH{sub 4} emissions from the Central Valley are underestimated and uncertainties in CH{sub 4} emissions are reduced for sub-regions near the tower site, yielding best estimates of flux from those regions consistent with 'source' analysis results. The uncertainty reductions for regions near the tower indicate that a regional network of measurements will be necessary to provide accurate estimates of surface CH{sub 4} emissions for multiple regions.

Zhao, Chuanfeng; Andrews, Arlyn E.; Bianco, Laura; Eluszkiewicz, Janusz; Hirsch, Adam; MacDonald, Clinton; Nehrkorn, Thomas; Fischer, Marc L.

2008-11-21T23:59:59.000Z

494

Characterization and analysis of diesel exhaust odor  

Science Journals Connector (OSTI)

Characterization and analysis of diesel exhaust odor ... Carbonyl and Nitrogen Dioxide Emissions From Gasoline- and Diesel-Powered Motor Vehicles ...

Patricia A. Partridge; Francis J. Shala; Nicholas P. Cernansky; Irwin H. Suffet

1987-04-01T23:59:59.000Z

495

On the Harmonic approximation for large Josephson junction coupling charge qubits  

E-Print Network (OSTI)

We revisit the harmonic approximation (HA) for a large Josephson junction interacting with some charge qubits through the variational approach for the quantum dynamics of the junction-qubit coupling system. By making use of numerical calculation and analytical treatment, the conditions under which HA works well can be precisely presented to control the parameters implementing the two-qubit quantum logical gate through the couplings to the large junction with harmonic oscillator (HO) Hamiltonian.

T. Shi; B. Chen; Z. Song; C. P. Sun

2004-09-23T23:59:59.000Z

496

Second harmonic generation from direct band gap quantum dots pumped by femtosecond laser pulses  

SciTech Connect

We report on nonlinear optical experiments performed on Cu{sub 2}S quantum dots (QDs) pumped by femtosecond laser pulses. We conduct a theoretical simulation and experiments to determine their second harmonic generation characteristics. Furthermore, we demonstrate that the QDs have a second harmonic generation conversion efficiency of up to 76%. Our studies suggest that these Cu{sub 2}S QDs can be used for solar cells, bioimaging, biosensing, and electric detection.

Liu, Liwei, E-mail: liulw@cust.edu.cn; Wang, Yue; Hu, Siyi; Ren, Yu; Huang, Chen [School of Science, Changchun University of Science and Technology, Changchun, Jilin 130022, People's Republic of China and International Joint Research Center for Nanophotonics and Biophotonics, Changchun University of Science and Technology, Changchun, Jilin 130022 (China)

2014-02-21T23:59:59.000Z

497

Supporting RBEC Transition to Low-Emission Development | Open Energy  

Open Energy Info (EERE)

RBEC Transition to Low-Emission Development RBEC Transition to Low-Emission Development Jump to: navigation, search Name Supporting RBEC Transition to Low-Emission Development Agency/Company /Organization United Nations Development Programme (UNDP), UNDP Bratislava Regional Center Partner Interministerial committees headed by the national focal point on climate change Sector Climate, Energy Focus Area Renewable Energy, Non-renewable Energy, Agriculture, Biomass, Buildings, Economic Development, Greenhouse Gas, Industry, People and Policy, Transportation Topics Background analysis, Baseline projection, Co-benefits assessment, Low emission development planning, -LEDS Website http://europeandcis.undp.org/e Program Start 2010 Program End 2012 Country Kazakhstan, Moldova, Republic of Kosovo, Turkey, Turkmenistan, Uzbekistan

498

Introduction to continuous emission monitoring programs. Final report  

SciTech Connect

This document provides a general introduction to continuous emission monitoring for those persons not previously involved in this field. Information is presented on continuous opacity monitoring, as well as instrumental and alternative monitoring techniques for SO2 and NOx (i.e., continuous wet-chemical measurement methods and fuel sampling and analysis methods). This document presents an outline and review of the fundamental concepts, terminology, and procedures used in a continuous emission monitoring program. Also presented are selected technical details necessary to understand the operation of emission monitors, the use of continuous emission monitoring data by air pollution control agencies, and references to other available documents which provide additional information.

Peeler, J.W.

1983-01-01T23:59:59.000Z

499

LOW-FREQUENCY OBSERVATIONS OF TRANSIENT QUASI-PERIODIC RADIO EMISSION FROM THE SOLAR ATMOSPHERE  

SciTech Connect

We report low-frequency observations of quasi-periodic, circularly polarized, harmonic type III radio bursts whose associated sunspot active regions were located close to the solar limb. The measured periodicity of the bursts at 80 MHz was ?5.2 s, and their average degree of circular polarization (dcp) was ?0.12. We calculated the associated magnetic field B (1) using the empirical relationship between the dcp and B for the harmonic type III emission, and (2) from the observed quasi-periodicity of the bursts. Both the methods result in B ? 4.2 G at the location of the 80 MHz plasma level (radial distance r ? 1.3 R{sub ?}) in the active region corona.

Sasikumar Raja, K.; Ramesh, R., E-mail: sasikumar@iiap.res.in [Indian Institute of Astrophysics, II Block, Koramangala, Bangalore 560 034 (India)

2013-09-20T23:59:59.000Z

500

Urea/Ammonia Distribution Optimization in an SCR Emission Control...  

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

P-20 UreaAmmonia Distribution Optimization in an SCR Emission Control System Through the Use of CFD Analysis Gi-Heon Kim, Matthew Thornton National Renewable Energy Laboratory...