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1

Online elemental analysis of process gases with ICP-OES: A case study on waste wood combustion  

SciTech Connect

Highlights: Black-Right-Pointing-Pointer Simultaneous measurements of 23 elements in process gases of a waste wood combustor. Black-Right-Pointing-Pointer Mobile ICP spectrometer allows measurements of high quality at industrial plants. Black-Right-Pointing-Pointer Continuous online measurements with high temporal resolution. Black-Right-Pointing-Pointer Linear correlations among element concentrations in the raw flue gas were detected. Black-Right-Pointing-Pointer Novel sampling and calibration methods for ICP-OES analysis of process gases. - Abstract: A mobile sampling and measurement system for the analysis of gaseous and liquid samples in the field was developed. An inductively coupled plasma optical emission spectrometer (ICP-OES), which is built into a van, was used as detector. The analytical system was calibrated with liquid and/or gaseous standards. It was shown that identical mass flows of either gaseous or liquid standards resulted in identical ICP-OES signal intensities. In a field measurement campaign trace and minor elements in the raw flue gas of a waste wood combustor were monitored. Sampling was performed with a highly transport efficient liquid quench system, which allowed to observe temporal variations in the elemental process gas composition. After a change in feedstock an immediate change of the element concentrations in the flue gas was detected. A comparison of the average element concentrations during the combustion of the two feedstocks showed a high reproducibility for matrix elements that are expected to be present in similar concentrations. On the other hand elements that showed strong differences in their concentration in the feedstock were also represented by a higher concentration in the flue gas. Following the temporal variations of different elements revealed strong correlations between a number of elements, such as chlorine with sodium, potassium and zinc, as well as arsenic with lead, and calcium with strontium.

Wellinger, Marco, E-mail: marco.wellinger@gmail.com [General Energy Research Department, Paul Scherrer Institute, CH-5232 Villigen PSI (Switzerland); Ecole Polytechnique Federale de Lausanne (EPFL), School of Architecture, Civil and Environmental Engineering (ENAC-IIE), CH-1015 Lausanne (Switzerland); Wochele, Joerg; Biollaz, Serge M.A. [General Energy Research Department, Paul Scherrer Institute, CH-5232 Villigen PSI (Switzerland); Ludwig, Christian, E-mail: christian.ludwig@psi.ch [General Energy Research Department, Paul Scherrer Institute, CH-5232 Villigen PSI (Switzerland); Ecole Polytechnique Federale de Lausanne (EPFL), School of Architecture, Civil and Environmental Engineering (ENAC-IIE), CH-1015 Lausanne (Switzerland)

2012-10-15T23:59:59.000Z

2

Elemental and Isotopic Analysis of Uranium Oxide an NIST Glass Standards by FEMTOSECOND-LA-ICP-MIC-MS  

Science Conference Proceedings (OSTI)

The objective of this work was to test and demonstrate the analytical figures of merit of a femtosecond-laser ablation (fs-LA) system coupled with an inductively coupled plasma-multi-ion collector-mass spectrometer (ICP-MIC-MS). The mobile fs-LA sampling system was designed and assembled at Ames Laboratory and shipped to Oak Ridge National Laboratory (ORNL), where it was integrated with an ICP-MIC-MS. The test period of the integrated systems was February 2-6, 2009. Spatially-resolved analysis of particulate samples is accomplished by 100-shot laser ablation using a fs-pulsewidth laser and monitoring selected isotopes in the resulting ICP-MS transient signal. The capability of performing high sensitivity, spatially resolved, isotopic analyses with high accuracy and precision and with virtually no sample preparation makes fs-LA-ICP-MIC-MS valuable for the measurement of actinide isotopes at low concentrations in very small samples for nonproliferation purposes. Femtosecond-LA has been shown to generate particles from the sample that are more representative of the bulk composition, thereby minimizing weaknesses encountered in previous work using nanosecond-LA (ns-LA). The improvement of fs- over ns-LA sampling arises from the different mechanisms for transfer of energy into the sample in these two laser pulse-length regimes. The shorter duration fs-LA pulses induce less heating and cause less damage to the sample than the longer ns pulses. This results in better stoichiometric sampling (i.e., a closer correlation between the composition of the ablated particles and that of the original solid sample), which improves accuracy for both intra- and inter-elemental analysis. The primary samples analyzed in this work are (a) solid uranium oxide powdered samples having different {sup 235}U to {sup 238}U concentration ratios, and (b) glass reference materials (NIST 610, 612, 614, and 616). Solid uranium oxide samples containing {sup 235}U in depleted, natural, and enriched abundances were analyzed as particle aggregates immobilized in a collodion substrate. The uranium oxide samples were nuclear reference materials (CRMs U0002, U005-A, 129-A, U015, U030-A, and U050) obtained from New Brunswick Laboratory-USDOE.

Ebert, Chris; Zamzow, Daniel S.; McBay, Eddie H.; Bostick, Debra A.; Bajic, Stanley J.; Baldwin, David P.; Houk, R.S.

2009-06-01T23:59:59.000Z

3

Uncertainty Measurement for Trace Element Analysis of Uranium and Plutonium Samples by Inductively Coupled Plasma-Atomic Emission Spectrometry (ICP-AES) and Inductively Coupled Plasma-Mass Spectrometry (ICP-MS)  

Science Conference Proceedings (OSTI)

The measurement uncertainty estimatino associated with trace element analysis of impurities in U and Pu was evaluated using the Guide to the Expression of Uncertainty Measurement (GUM). I this evalution the uncertainty sources were identified and standard uncertainties for the components were categorized as either Type A or B. The combined standard uncertainty was calculated and a coverage factor k = 2 was applied to obtain the expanded uncertainty, U. The ICP-AES and ICP-MS methods used were deveoped for the multi-element analysis of U and Pu samples. A typical analytical run consists of standards, process blanks, samples, matrix spiked samples, post digestion spiked samples and independent calibration verification standards. The uncertainty estimation was performed on U and Pu samples that have been analyzed previously as part of the U and Pu Sample Exchange Programs. Control chart results and data from the U and Pu metal exchange programs were combined with the GUM into a concentration dependent estimate of the expanded uncertainty. Comparison of trace element uncertainties obtained using this model was compared to those obtained for trace element results as part of the Exchange programs. This process was completed for all trace elements that were determined to be above the detection limit for the U and Pu samples.

Gallimore, David L. [Los Alamos National Laboratory

2012-06-13T23:59:59.000Z

4

Mutual interference analysis of IEEE 802.15.4 and IEEE 802.11b  

Science Conference Proceedings (OSTI)

IEEE 802.15.4 and IEEE 802.11b, operating in the 2.4GHz unlicensed industrial scientific medical (ISM) frequency band, may lead to signal interference and result in significant performance degradation when devices are collocated in the same environment. ... Keywords: Analysis, Average transmission delay, IEEE 802.11b, IEEE 802.15.4, Interference, Packet error rate, Throughput

Soo Young Shin; Hong Seong Park; Wook Hyun Kwon

2007-08-01T23:59:59.000Z

5

www.elsevier.com/locate/fuel Trace elements in coal derived liquids: analysis by ICP-MS and  

E-Print Network (OSTI)

Concentrations of trace elements in coal derived liquids have been investigated by inductively coupled plasma-mass spectrometry (ICP-MS) and by Mössbauer spectroscopy. Liquefaction extracts prepared from the Argonne Premium Coals and a coal tar pitch have been examined. Microwave digestion in concentrated nitric acid has been shown as a suitable method for determining trace element concentrations in coal derived liquids by ICP-MS—for sample sizes as small as 3–20 mg. High concentrations of Fe were found for all extract samples (?265–1474 ppm). Ti, Cr, Mn, Co, Ga, Sb, Cs and Ba were measurable. Concentration distributions of trace elements found in the extracts bore little relation to the corresponding distributions in the original coals. The proportions of individual trace elements present in the original coals and found in the extracts, varied widely. Mössbauer spectroscopy of the extracts indicated that the high Fe-concentrations corresponded to the presence of organometallic-Fe compounds—and not to pyritic iron. There is evidence suggesting the presence of material derived from iron-storage proteins such as ferritin, but final proof is lacking. Our data suggest that other metallic ions detected in these coal derived liquids may be present in association with the organic material. Concentrations of paramagnetic metal species were found to be of the same order of magnitude as ESR spin-densities already found in coal liquids. Both types of paramagnetic species are suspected of causing loss of signal in

Mössbauer Spectroscopy; R. Richaud A; H. Lachas A; M. -j. Lazaro A; L. J. Clarke B; K. E. Jarvis B; A. A. Herod A; T. C. Gibb C; R. Kandiyoti A

1999-01-01T23:59:59.000Z

6

Design and analysis of a scanning beam interference lithography system for patterning gratings with nanometer-level distortions  

E-Print Network (OSTI)

This thesis describes the design and analysis of a system for patterning large-area gratings with nanometer level phase distortions. The novel patterning method, termed scanning beam interference lithography (SBIL), uses ...

Konkola, Paul Thomas, 1973-

2003-01-01T23:59:59.000Z

7

Determination of Plutonium Isotope Ratios at Very Low Levels by ICP-MS using On-Line Electrochemically Modulated Separations  

Science Conference Proceedings (OSTI)

Electrochemically modulated separations (EMS) are shown to be a rapid and selective means of extracting and concentrating Pu from complex solutions prior to isotopic analysis by inductively coupled plasma mass spectrometry (ICP?MS). This separation is performed in a flow injection mode, on?line with the ICP?MS. A three?electrode, flow?by electrochemical cell is used to accumulate Pu at an anodized glassy carbon electrode by redox conversion of Pu(III) to Pu (IV&VI). The entire process takes place in 2% v/v (0.46M) HNO3. No redox chemicals or acid concentration changes are required. Plutonium accumulation and release is redox dependent and controlled by the applied cell potential. Thus large transient volumetric concentration enhancements can be achieved. Based on more negative U(IV) potentials relative to Pu(IV), separation of Pu from uranium is efficient, thereby eliminating uranium hydride interferences. EMS?ICP?MS isotope ratio measurement performance will be presented for femtogram to attogram level plutonium concentrations.

Liezers, Martin; Lehn, Scott A.; Olsen, Khris B.; Farmer, Orville T.; Duckworth, Douglas C.

2009-10-01T23:59:59.000Z

8

Ray-based analysis of the interference striation pattern in an underwater acoustic waveguide  

E-Print Network (OSTI)

In some underwater acoustic waveguides with specially selected sound speed profiles striations or fringes of the interference pattern are determined by a single parameter \\beta\\ called the waveguide (or Chuprov) invariant. In the present paper it is shown that an analytical description of fringes may be possible in a waveguide with an arbitrary sound speed profile. A simple analytical expression is obtained for smooth lines formed by local maxima of the interference pattern. This result is valid at long enough ranges. It is derived proceeding from a known relation connecting the differences of ray travel times and the action variables of ray paths.

Virovlyansky, A L

2013-01-01T23:59:59.000Z

9

Evaluation of the Partial Discharge and Electromagnetic Interference Analysis Techniques for Condition Monitoring of 4160-V Motors  

Science Conference Proceedings (OSTI)

This report provides a brief description of the different activities that occurred during a three-year project encompassing the use of two of the more advanced toolsthe technologies of partial discharge analysis and electromagnetic interference (EMI) analysisfor determining the electrical condition of large electric motors in the utility industry. The project's principal focus was on hardware and determining how to effectively use the technologies in electrical generation facilities. This focus included ...

2008-11-03T23:59:59.000Z

10

Uncertainty Analysis of the Conducted Interferences in a DC-DC Converter  

E-Print Network (OSTI)

.A. Vasconcelos Laboratorio de Computação Evolucionaria Universidade Federal de Minas Gerais Belo Horizonte measurement of conducted interferences and its PDF is rapidly determined, when compared to the Monte Carlo (MC) approach. Keywords - Electromagnetic Compatibility, Monte Carlo, Parametric Uncertainty, Power Electronics

Paris-Sud XI, Université de

11

No Interference  

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

Laboratory Laboratory Interference Double Beta Decay Dark Matter Biology Repository Science Renewable Energy No interference from radioactive waste at WIPP All waste disposal operations are conducted in the southern reaches of the WIPP underground in specially mined disposal panels. The nearest of these disposal panels is about a kilometer from the experiment gallery to the north. With no "line of sight" for streaming radiation between waste and experimental areas, and with solid rock walls separating them, there is no interference to sensitive nuclear particle detectors from the waste in the experiment gallery. This even includes neutrinos from waste components decaying by beta emission. Additionally, the careful monitoring to ensure clean operations guarantees no airborne radioactivity contributes to

12

CHAPTER 7. BERYLLIUM ANALYSIS BY NON-PLASMA BASED METHODS  

SciTech Connect

The most common method of analysis for beryllium is inductively coupled plasma atomic emission spectrometry (ICP-AES). This method, along with inductively coupled plasma mass spectrometry (ICP-MS), is discussed in Chapter 6. However, other methods exist and have been used for different applications. These methods include spectroscopic, chromatographic, colorimetric, and electrochemical. This chapter provides an overview of beryllium analysis methods other than plasma spectrometry (inductively coupled plasma atomic emission spectrometry or mass spectrometry). The basic methods, detection limits and interferences are described. Specific applications from the literature are also presented.

Ekechukwu, A

2009-04-20T23:59:59.000Z

13

Reduction of Solvent Effect in Reverse Phase Gradient Elution LC-ICP-MS  

DOE Green Energy (OSTI)

Quantification in liquid chromatography (LC) is becoming very important as more researchers are using LC, not as an analytical tool itself, but as a sample introduction system for other analytical instruments. The ability of LC instrumentation to quickly separate a wide variety of compounds makes it ideal for analysis of complex mixtures. For elemental speciation, LC is joined with inductively coupled plasma mass spectrometry (ICP-MS) to separate and detect metal-containing, organic compounds in complex mixtures, such as biological samples. Often, the solvent gradients required to perform complex separations will cause matrix effects within the plasma. This limits the sensitivity of the ICP-MS and the quantification methods available for use in such analyses. Traditionally, isotope dilution has been the method of choice for LC-ICP-MS quantification. The use of naturally abundant isotopes of a single element in quantification corrects for most of the effects that LC solvent gradients produce within the plasma. However, not all elements of interest in speciation studies have multiple naturally occurring isotopes; and polyatomic interferences for a given isotope can develop within the plasma, depending on the solvent matrix. This is the case for reverse phase LC separations, where increasing amounts of organic solvent are required. For such separations, an alternative to isotope dilution for quantification would be is needed. To this end, a new method was developed using the Apex-Q desolvation system (ESI, Omaha, NE) to couple LC instrumentation with an ICP-MS device. The desolvation power of the system allowed greater concentrations of methanol to be introduced to the plasma prior to destabilization than with direct methanol injection into the plasma. Studies were performed, using simulated and actual linear methanol gradients, to find analyte-internal standard (AIS) pairs whose ratio remains consistent (deviations {+-} 10%) over methanol concentration ranges of 5%-35% (simulated) and 8%-32% (actual). Quadrupole (low resolution) and sector field (high resolution) ICP-MS instrumentation were utilized in these studies. Once an AIS pair is determined, quantification studies can be performed. First, an analysis is performed by adding both elements of the AIS pair post-column while performing the gradient elution without sample injection. A comparison of the ratio of the measured intensities to the atomic ratio of the two standards is used to determine a correction factor that can be used to account for the matrix effects caused by the mobile phase. Then, organic and/or biological molecules containing one of the two elements in the AIS pair are injected into the LC column. A gradient method is used to vary the methanol-water mixture in the mobile phase and to separate out the compounds in a given sample. A standard solution of the second ion in the AIS pair is added continuously post-column. By comparing the ratio of the measured intensities to the atomic ratio of the eluting compound and internal standard, the concentration of the injected compound can be determined.

Patrick Allen Sullivan

2005-12-17T23:59:59.000Z

14

Telecom Center Interference Literature Review  

Science Conference Proceedings (OSTI)

The proposed construction of a 115 kV transmission line, 100 meters from an existing telecom switching center, resulted in an inquiry from the telecom company about the risk of interference. This report provides the results of a literature review and a qualitative analysis of potential modes of interference.

2008-07-23T23:59:59.000Z

15

Interlaboratory Validation of EPA 1600 Series Methods: Draft EPA Method 1638 for Analysis of Metals in Water by Inductively Coupled Plasma -- Mass Spectrometry (ICP-MS)  

Science Conference Proceedings (OSTI)

Federal and state permits are requiring wastewater dischargers to monitor for ever lower concentrations of trace metals, in some cases at levels that may preclude reliable measurement. In this joint EPA-EPRI interlaboratory data collection effort, eight laboratories evaluated draft EPA Method 1638: Determination of Trace Elements in Ambient Water by Inductively Coupled Plasma-Mass Spectrometry. This method is intended for the analysis of low levels (parts per trillion) of antimony, cadmium, copper, lead,...

2000-11-27T23:59:59.000Z

16

ICP Solar Technologies Inc | Open Energy Information  

Open Energy Info (EERE)

ICP Solar Technologies Inc ICP Solar Technologies Inc Jump to: navigation, search Name ICP Solar Technologies Inc Place Montreal, Quebec, Canada Zip H3N 1W5 Sector Solar Product Manufactures amorphous silicon solar PV cells, and battery chargers using these cells. Coordinates 45.512293°, -73.554407° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":45.512293,"lon":-73.554407,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

17

Integrated Design for Marketing and Manufacturing team: An examination of LA-ICP-AES in a mobile configuration. Final report  

Science Conference Proceedings (OSTI)

The Department of Energy (DOE) has identified the need for field-deployable elemental analysis devices that are safer, faster, and less expensive than the fixed laboratory procedures now used to screen hazardous waste sites. As a response to this need, the Technology Integration Program (TIP) created a mobile, field-deployable laser ablation-inductively coupled plasma-atomic emission spectrometry (LA-ICP-AES) sampling and analysis prototype. Although the elemental. screening prototype has been successfully field-tested, continued marketing and technical development efforts are required to transfer LA-ICP-AES technology to the commercial sector. TIP established and supported a student research and design group called the Integrated Design for Marketing and Manufacturing (IDMM) team to advance the technology transfer of mobile, field-deployable LA-ICP-AES. The IDMM team developed a conceptual design (which is detailed in this report) for a mobile, field-deployable LA-ICP-AES sampling and analysis system, and reports the following findings: Mobile, field-deployable LA-ICP-AES is commercially viable. Eventual regulatory acceptance of field-deployable LA-ICP-AES, while not a simple process, is likely. Further refinement of certain processes and components of LA-ICP-AES will enhance the device`s sensitivity and accuracy.

Not Available

1994-05-01T23:59:59.000Z

18

Microsoft Word - icp11001CXPostForm.doc  

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

1-001 1-001 SECTION A. Project Title: Idaho Completion Project Environmental and Regulatory Service Activities SECTION B. Project Description The proposed action addresses the site-wide sampling and monitoring and waste characterization sampling programs that support the Idaho Completion Project (ICP) operations. Actions include: ï‚· groundwater monitoring, ï‚· day-to-day monitoring activities (i.e., measurement of liquid or gaseous effluents for purposes of characterizing and quantifying contaminants, collection and analysis of samples, direct measurement of air, soil, water, biota and other media etc.), ï‚· characterization of sites, systems and containers suspected of being contaminated with hazardous, radioactive, and mixed wastes, and

19

{sup 99}Tc bioassay by inductively coupled plasma mass spectrometry (ICP-MS)  

Science Conference Proceedings (OSTI)

A means of analyzing {sup 99}Tc in urine by inductively coupled plasma mass spectrometry (ICP-MS) has been developed. Historically, {sup 99}Tc analysis was based on the radiometric detection of the 293 keV E{sub Max} beta decay product by liquid scintillation or gas flow proportional counting. In a urine matrix, the analysis of{sup 99}Tc is plagued with many difficulties using conventional radiometric methods. Difficulties originate during chemical separation due to the volatile nature of Tc{sub 2}O{sub 7} or during radiation detection due to color or chemical quenching. A separation scheme for {sup 99}Tc detection by ICP-MS is given and is proven to be a sensitive and robust analytical alternative. A comparison of methods using radiometric and mass quantitation of {sup 99}Tc has been conducted in water, artificial urine, and real urine matrices at activity levels between 700 and 2,200 dpm/L. Liquid scintillation results based on an external standard quench correction and a quench curve correction method are compared to results obtained by ICP-MS. Each method produced accurate results, however the precision of the ICP-MS results is superior to that of liquid scintillation results. Limits of detection (LOD) for ICP-MS and liquid scintillation detection are 14.67 and 203.4 dpm/L, respectively, in a real urine matrix. In order to determine the basis for the increased precision of the ICP-MS results, the detection sensitivity for each method is derived and measured. The detection sensitivity for the {sup 99}Tc isotope by ICP-MS is 2.175 x 10{sup {minus}7} {+-} 8.990 x 10{sup {minus}9} and by liquid scintillation is 7.434 x 10{sup {minus}14} {+-} 7.461 x 10{sup {minus}15}. A difference by seven orders of magnitude between the two detection systems allows ICP-MS samples to be analyzed for a period of 15 s compared to 3,600 s by liquid scintillation counting with a lower LOD.

Lewis, L.A.

1998-05-01T23:59:59.000Z

20

Characterization Of Nuclear Materials Using Time-Of-Flight ICP-MS  

Science Conference Proceedings (OSTI)

The investigation of illicit trafficking of nuclear materials, nuclear safeguards analysis, and non-proliferation control requires sensitive and isotope-selective detection methods to gain crucial nuclear forensic information like isotope 'fingerprints' and multi-element signatures. The advantage of time-of-flight (TOF) mass spectrometry - quasi-simultaneous multi-mass analysis - combined with an inductively coupled plasma (ICP) ion source provides an analytical instrument with multi-element and multi-isotope capability and good detection limits. A TOF-ICP-MS system thus appears to be an advantageous choice for the investigation and characterization of nuclear materials. We present here results using a GBC OptiMass 8000 time-of-flight ICP-MS for the isotope screening of solid samples by laser ablation and the multi-element determination of impurities in uranium ore concentrates using matrix matched standards. A laser ablation system (New Wave Research, UP 213) coupled to the TOF-ICP-MS instrument has been used to optimize the system for analysis of non-radioactive metal samples of natural isotopic composition for a variety of elements including Cu, Sr, Zr, Mo, Cd, In, Ba, Ta, W, Re, Pt, and Pb in pure metals, alloys, and glasses to explore precision, accuracy, and detection limits. Similar methods were then applied to measure uranium. When the laser system is optimized, no mass bias correction is required. Precision and accuracy for the determination of the isotopic composition is typically 1 - 3% for elemental concentrations of as little as 50 ppm in the matrix, with no requirement for sample preparation. The laser ablation precision and accuracy are within ~10x of the instrumental limits for liquid analysis (0.1%). We have investigated the capabilities of the TOF-ICP-MS for the analysis of impurities in uranium matrices. Matrix matching has been used to develop calibration curves for a range of impurities (alkaline, earth-alkaline, transition metals, and rare earth elements). These calibration curves have been used to measure impurities in a number of uranium samples. The results from the TOF-ICP-MS will be compared with other mass spectrometric methods.

Buerger, Stefan [ORNL; Riciputi, Lee R [ORNL; Bostick, Debra A [ORNL; Duckworth, Douglas {Doug} C [ORNL

2006-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "analysis icp interference" 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

ICP dry etching of III-V nitrides  

DOE Green Energy (OSTI)

Inductively coupled plasma etching of GaN, AlN, InN, InGaN and InAlN was investigated in CH{sub 4}/H{sub 2}/Ar plasmas as a function of dc bias, and ICP power. The etch rates were generally quite low, as is common for III-nitrides in CH{sub 4} based chemistries. The etch rates increased with increasing dc bias. At low rf power (150 W), the etch rates increased with increasing ICP power, while at 350 W rf power, a peak was found between 500 and 750 W ICP power. The etched surfaces were found to be smooth, while selectivities of etch were {le} 6 for InN over GaN, AlN, InGaN and InAlN under all conditions.

Vartuli, C.B.; Lee, J.W.; MacKenzie, J.D. [Univ. of Florida, Gainesville, FL (United States)] [and others

1997-10-01T23:59:59.000Z

22

EPOD Solar Wales Ltd formerly ICP Solar Technologies Ltd | Open Energy  

Open Energy Info (EERE)

Wales Ltd formerly ICP Solar Technologies Ltd Wales Ltd formerly ICP Solar Technologies Ltd Jump to: navigation, search Name EPOD Solar (Wales) Ltd (formerly ICP Solar Technologies Ltd) Place Mid Glamorgan, United Kingdom Zip CF31 3YN Sector Solar Product Research, development, manufacturing,marketing and sales of leading-edge solar energy products. References EPOD Solar (Wales) Ltd (formerly ICP Solar Technologies Ltd)[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. EPOD Solar (Wales) Ltd (formerly ICP Solar Technologies Ltd) is a company located in Mid Glamorgan, United Kingdom . References ↑ "EPOD Solar (Wales) Ltd (formerly ICP Solar Technologies Ltd)" Retrieved from "http://en.openei.org/w/index.php?title=EPOD_Solar_Wales_Ltd_formerly_ICP_Solar_Technologies_Ltd&oldid=34508

23

Novel polarization interference imaging spectroscope  

Science Conference Proceedings (OSTI)

A novel principle and scheme of Polarization Interferometer Imaging Spectroscope has been proposed. A wide-field-of-view polarization Interference imaging spectrometer (WPIIS) based on a Savart polariscope, without moving parts, and with a narrow slit ... Keywords: SNR, modulation depth, polarization interference imaging spectrometer, savart polariscope, throughput

Chunmin Zhang; Baochang Zhao; Yingcai Li; Zhilin Yuan; Xiaohua Jian; Lanyan Zhu

2008-07-01T23:59:59.000Z

24

Embracing interference in wireless systems  

E-Print Network (OSTI)

The wireless medium is a shared resource. If nearby devices transmit at the same time, their signals interfere, resulting in a collision. In traditional networks, collisions cause the loss of the transmitted information. ...

Gollakota, Shyamnath (Shyamnath Venkata Satyasrisai)

2013-01-01T23:59:59.000Z

25

Determination of impurities in uranium matrices by time-of-flight ICP-MS using matrix-matched method  

Science Conference Proceedings (OSTI)

The analysis of impurities in uranium matrices is performed in a variety of fields, e.g. for quality control in the production stream converting uranium ores to fuels, as element signatures in nuclear forensics and safeguards, and for non-proliferation control. We have investigated the capabilities of time-of-flight ICP-MS for the analysis of impurities in uranium matrices using a matrix-matched method. The method was applied to the New Brunswick Laboratory CRM 124(1-7) series. For the seven certified reference materials, an overall precision and accuracy of approximately 5% and 14%, respectively, were obtained for 18 analyzed elements.

Buerger, Stefan [ORNL; Riciputi, Lee R [ORNL; Bostick, Debra A [ORNL

2007-01-01T23:59:59.000Z

26

Unruh radiation and Interference effect  

E-Print Network (OSTI)

A uniformly accelerated charged particle feels the vacuum as thermally excited and fluctuates around the classical trajectory. Then we may expect additional radiation besides the Larmor radiation. It is called Unruh radiation. In this report, we review the calculation of the Unruh radiation with an emphasis on the interference effect between the vacuum fluctuation and the radiation from the fluctuating motion. Our calculation is based on a stochastic treatment of the particle under a uniform acceleration. The basics of the stochastic equation are reviewed in another report in the same proceeding. In this report, we mainly discuss the radiation and the interference effect.

Iso, Satoshi; Zhang, Sen

2011-01-01T23:59:59.000Z

27

Unruh radiation and Interference effect  

E-Print Network (OSTI)

A uniformly accelerated charged particle feels the vacuum as thermally excited and fluctuates around the classical trajectory. Then we may expect additional radiation besides the Larmor radiation. It is called Unruh radiation. In this report, we review the calculation of the Unruh radiation with an emphasis on the interference effect between the vacuum fluctuation and the radiation from the fluctuating motion. Our calculation is based on a stochastic treatment of the particle under a uniform acceleration. The basics of the stochastic equation are reviewed in another report in the same proceeding. In this report, we mainly discuss the radiation and the interference effect.

Satoshi Iso; Yasuhiro Yamamoto; Sen Zhang

2011-02-23T23:59:59.000Z

28

APPLICATION OF COLUMN EXTRACTION METHOD FOR IMPURITIES ANALYSIS ON HB-LINE PLUTONIUM OXIDE IN SUPPORT OF MOX FEED PRODUCT SPECIFICATIONS  

SciTech Connect

The current mission at H-Canyon involves the dissolution of an Alternate Feedstocks 2 (AFS-2) inventory that contains plutonium metal. Once dissolved, HB-Line is tasked with purifying the plutonium solution via anion exchange, precipitating the Pu as oxalate, and calcining to form plutonium oxide (PuO{sub 2}). The PuO{sub 2} will provide feed product for the Mixed Oxide (MOX) Fuel Fabrication Facility, and the anion exchange raffinate will be transferred to H-Canyon. The results presented in this report document the potential success of the RE resin column extraction application on highly concentrated Pu samples to meet MOX feed product specifications. The original 'Hearts Cut' sample required a 10000x dilution to limit instrument drift on the ICP-MS method. The instrument dilution factors improved to 125x and 250x for the sample raffinate and sample eluent, respectively. As noted in the introduction, the significantly lower dilutions help to drop the total MRL for the analyte. Although the spike recoveries were half of expected in the eluent for several key elements, they were between 94-98% after Nd tracer correction. It is seen that the lower ICD limit requirements for the rare earths are attainable because of less dilution. Especially important is the extremely low Ga limit at 0.12 {mu}g/g Pu; an ICP-MS method is now available to accomplish this task on the sample raffinate. While B and V meet the column A limits, further development is needed to meet the column B limits. Even though V remained on the RE resin column, an analysis method is ready for investigation on the ICP-MS, but it does not mean that V cannot be measured on the ICP-ES at a low dilution to meet the column B limits. Furthermore, this column method can be applicable for ICP-ES as shown in Table 3-2, in that it trims the sample of Pu, decreasing and sometimes eliminating Pu spectral interferences.

Jones, M.; Diprete, D.; Wiedenman, B.

2012-03-20T23:59:59.000Z

29

Sum Capacity of the Gaussian Interference Channel in the Low Interference Regime  

E-Print Network (OSTI)

New upper bounds on the sum capacity of the two-user Gaussian interference channel are derived. Using these bounds, it is shown that treating interference as noise achieves the sum capacity if the interference levels are below certain thresholds.

Annapureddy, V Sreekanth

2008-01-01T23:59:59.000Z

30

Parasitic interference in nulling interferometry  

E-Print Network (OSTI)

Nulling interferometry aims to detect faint objects close to bright stars. Its principle is to produce a destructive interference along the line-of-sight so that the stellar flux is rejected, while the flux of the off-axis source can be transmitted. In practice, various instrumental perturbations can degrade the nulling performance. Any imperfection in phase, amplitude, or polarization produces a spurious flux that leaks to the interferometer output and corrupts the transmitted off-axis flux. One of these instrumental pertubations is the crosstalk phenomenon, which occurs because of multiple parasitic reflections inside transmitting optics, and/or diffraction effects related to beam propagation along finite size optics. It can include a crosstalk of a beam with itself, and a mutual crosstalk between different beams. This can create a parasitic interference pattern, which degrades the intrinsic transmission map - or intensity response - of the interferometer. In this context, we describe how this instrumental ...

Matter, Alexis; Danchi, William C; Lopez, Bruno; Absil, Olivier

2013-01-01T23:59:59.000Z

31

Guidelines for Electromagnetic Interference Testing  

Science Conference Proceedings (OSTI)

One issue that has been problematic for new plant equipment and especially for digital instrumentation and control (I&C) systems in recent years is electromagnetic compatibility (EMC). Guidance from the Nuclear Regulatory Commission (NRC), EPRI, and various standards organizations has been evolving for many years and generally converging. However, the NRC's most recent guidance, Regulatory Guide 1.180 Revision 1, and EPRI's most recent EMI Guideline (Guidelines for Electromagnetic Interference Testing in...

2008-02-21T23:59:59.000Z

32

Overview of Electron Microscope Interference  

Science Conference Proceedings (OSTI)

Power frequency magnetic fields can interfere with proper operation of electronic imaging systems. Electron microscopes are susceptible to deflection of their electron beam by an external magnetic field. This unwanted deflection can cause blurring of the image. MRI equipment is susceptible to induced voltage in the sensing coil caused by changing magnetic fields. In either case the result is degradation of the image. Magnetic field strengths that impact the images are on the same order of magnitude as th...

2010-05-28T23:59:59.000Z

33

Embracing Wireless Interference: Analog Network Coding  

E-Print Network (OSTI)

Traditionally, interference is considered harmful.Wireless networks strive to avoid scheduling multiple transmissions at the same time in order to prevent interference. This paper adopts the opposite approach; it encourages ...

Katti, Sachin

2007-02-23T23:59:59.000Z

34

Making sensornet MAC protocols robust against interference  

Science Conference Proceedings (OSTI)

Radio interference may lead to packet losses, thus negatively affecting the performance of sensornet applications. In this paper, we experimentally assess the impact of external interference on state-of-the-art sensornet MAC protocols. Our experiments ...

Carlo Alberto Boano; Thiemo Voigt; Nicolas Tsiftes; Luca Mottola; Kay Römer; Marco Antonio Zúñiga

2010-02-01T23:59:59.000Z

35

Topological Interference Management through Index Coding  

E-Print Network (OSTI)

0’ to all those (weak) links whose collective contributionNow we include weak interference links, bringing us back toSince including weak interference links can at worst reduce

Jafar, Syed A

2013-01-01T23:59:59.000Z

36

Optical interference produced by artificial light  

Science Conference Proceedings (OSTI)

Wireless infrared transmission systems for indoor use are affected by noise and interference induced by natural and artificial ambient light. This paper presents a characterisation (through extensive measurements) of the interference produced by artificial ...

Adriano J. C. Moreira; Rui T. Valadas; A. M. de Oliveira Duarte

1997-05-01T23:59:59.000Z

37

Combustible gas sensor interference test report  

DOE Green Energy (OSTI)

Result of Laboratory Interference testing of the Sierra Monitor Corporation Gas Sensor, number model 4101-2, are documented.

Webb, B.J., Westinghouse Hanford

1996-07-30T23:59:59.000Z

38

Interference in TDD based LMDS systems  

E-Print Network (OSTI)

In this paper different aspects concerning interference in TDD (Time Division Duplexing) based LMDS (Local Multipoint Distribution Systems) systems are considered. The most important interference situations are desribed and where appropriate comparisons with FDD (Frequency Division Duplexing) based systems will be made. Both intrasystem (between different operators' networks) and intersystem (within an operator's network) interference are considered.

Isabelle Tardy Ole; Ole Grøndalen; Gianfranco Vezzani; Telital Unicom Centro Ricerche Telecomunicazioni

2002-01-01T23:59:59.000Z

39

Inductively coupled plasma-atomic emission spectrometry (ICP-AES) in support of nuclear waste management. [HHDECMP (hexyl hexyl-N,N diethylcarbamolymethylphosphonate) and n-octyl(phenyl)-N,N diisobutylcarbamoylmethylphosphine oxide  

SciTech Connect

Simulated complex nuclear waste solutions are characterized by Inductively Coupled Plasma-Atomic Emission Spectrometry (ICP-AEC). The system uses and ICP source focused on both a polychromator and a computer-controlled scanning monochromator for intensity measurements. This instrumentation allows for simultaneous and sequential measurements of liquid extraction distribution coefficients needed in the development of process flow sheets for component separations. A large number of elements are determined rapidly with adequate sensitivity and accuracy. The focus of this investigation centers on the analysis of nuclear fission products. 13 references, 13 tables.

Huff, E.A.; Horwitz, E.P.

1984-01-01T23:59:59.000Z

40

Assessment of Electromagnetic Interference Events in Nuclear Power Plants  

Science Conference Proceedings (OSTI)

This report presents a study and analysis of reported electromagnetic interference (EMI-) related incidents in nuclear power plants. These incidents were gathered primarily from the total body of incidents reported to the Institute of Nuclear Power Operations (INPO) database, with a few incidents coming from U.S. Nuclear Regulatory Commission (NRC) reports. This report analyzes trends and common factors in these events. The analysis is intended to inform the estimation of risk from EMI and offer suggesti...

2011-12-23T23:59:59.000Z

Note: This page contains sample records for the topic "analysis icp interference" 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

Quantum Interference in Plasmonic Circuits  

E-Print Network (OSTI)

Surface plasmon polaritons (plasmons) are a combination of light and a collective oscillation of the free electron plasma at metal-dielectric interfaces. This interaction allows sub-wavelength confinement of light, beyond the diffraction limit inherent to dielectric structures. The resulting electromagnetic fields are more intense and the strength of optical interactions between metallic structures and light-sources or detectors can be increased. Plasmons maintain non-classical photon statistics and preserve entanglement on plasmon-assisted transmission through thin, patterned metallic films or weakly confining waveguides. For quantum applications it is essential that plasmons behave as indistinguishable quantum particles. Here we report on a quantum interference experiment in a nanoscale plasmonic circuit consisting of an on-chip plasmon beam splitter with integrated superconducting single-photon detectors to allow efficient single plasmon detection. We demonstrate quantum mechanical interaction between pair...

Heeres, Reinier W; Zwiller, Valery

2013-01-01T23:59:59.000Z

42

Photon wave functions and quantum interference experiments  

E-Print Network (OSTI)

We present a general theory to describe two-photon interference, including a formal description of few photon intereference in terms of single-photon amplitudes. With this formalism, it is possible to describe both frequency entangled and separable two-photon interference in terms of single-photon wave functions. Using this description, we address issues related to the physical interpretation of two-photon interference experiments. We include a discussion on how few-photon interference can be interpreted as a bosonic exchange effect, and how this relates to traditional exchange effects with fermions.

G. G. Lapaire; J. E. Sipe

2006-07-02T23:59:59.000Z

43

Interference Proceedings—Winner Take All  

Science Conference Proceedings (OSTI)

When two or more parties claim identical or substantially identical invention, the U.S. Patent and Trademark Office may declare an interference proceeding to ...

44

The Ergodic Capacity of Interference Networks  

E-Print Network (OSTI)

A. Jafar, “The ergodic capacity of interference networks,”Gupta and P. R. Kumar, “The capacity of wireless networks,”cooperation achieves optimal capacity scaling in ad hoc

Jafar, Syed A

2010-01-01T23:59:59.000Z

45

Analysis of solar neutrino problem by means of Nötzold and Nakagawa's approach including the interference term- Hyperbolic-tangent profile for electron density in the sun and exact solution -  

E-Print Network (OSTI)

Using an exact solution with the hyperbolic-tangent profile for the electron density in the sun, which is developed by N\\"{o}tzold and later modified by Nakagawa, we have analyzed the solar neutrino problem. An interference term in their approach is correctly taken into account. Combining the hyperbolic-tangent profile with the BP2000, we obtain a phenomenological fitting in the analytic form. Combining recent observed results for survival probability $P(\

Masahiro Kaneyama; Minoru Biyajima

2002-11-18T23:59:59.000Z

46

Two-photon interference with thermal light  

E-Print Network (OSTI)

The study of entangled states has greatly improved the basic understanding about two-photon interferometry. Two-photon interference is not the interference of two photons but the result of superposition among indistinguishable two-photon amplitudes. The concept of two-photon amplitude, however, has generally been restricted to the case of entangled photons. In this letter we report an experimental study that may extend this concept to the general case of independent photons. The experiment also shows interesting practical applications regarding the possibility of obtaining high resolution interference patterns with thermal sources.

Giuliano Scarcelli; Alejandra Valencia; Yanhua Shih

2004-10-27T23:59:59.000Z

47

Measurement of lithium isotope ratios by quadrupole-ICP-MS: application to seawater and natural carbonates  

E-Print Network (OSTI)

Measurement of lithium isotope ratios by quadrupole-ICP-MS: application to seawater and natural method for lithium isotope ratio (7 Li/6 Li) determinations with low total lithium consumption ( lithium from all matrix elements using small volume resin (2 ml/3.4 meq AG 50W-X8) and low volume elution

Weston, Ken

48

Electromagnetically induced interference at superconducting qubits  

E-Print Network (OSTI)

We study electromagnetically induced interference at superconducting qubits. The interaction between qubits and electromagnetic fields can provide additional coupling channels to qubit states, leading to quantum interference in a microwave driven qubit. In particular, the interwell relaxation or Rabi oscillation, resulting respectively from the multi- or single-mode interaction, can induce effective crossovers. The environment is modeled by a multi-mode thermal bath, generating the interwell relaxation. Relaxation induced interference, independent of the tunnel coupling, provides deeper understanding to the interaction between the qubits and their environment. It also supplies a useful tool to characterize the relaxation strength as well as the characteristic frequency of the bath. In addition, we demonstrate the relaxation can generate population inversion in a strongly driving two-level system. On the other hand, different from Rabi oscillation, Rabi oscillation induced interference involves more complicate...

Du, Lingjie

2010-01-01T23:59:59.000Z

49

A framework for non-ICP lidar-based pose estimation using an optimally constrained 3D target.  

E-Print Network (OSTI)

??This thesis describes a non-ICP-based framework fohr [sic] the computation of a pose estimate of a special target shape from raw LIDAR scan data. In… (more)

Saint-Cyr, Pierre

2010-01-01T23:59:59.000Z

50

Entanglement of distant electron interference experiments  

SciTech Connect

Two electron interference experiments which are far from each other are considered. They are irradiated with correlated nonclassical electromagnetic fields, produced by the same source. The phase factors are in this case operators, and their expectation values with respect to the density matrix of the electromagnetic field quantify the observed electron fringes. The correlated photons create correlations between the observed electron intensities. Both cases of classically correlated (separable) and quantum mechanically correlated (entangled) electromagnetic fields are considered. It is shown that the induced correlation between the distant electron interferences is sensitive to the nature of the correlation between the irradiating photons.

Tsomokos, D.I.; Chong, C.C.; Vourdas, A. [Department of Computing, School of Informatics, University of Bradford, Bradford BD7 1DP (United Kingdom)

2004-01-01T23:59:59.000Z

51

Entanglement of distant electron interference experiments  

E-Print Network (OSTI)

Two electron interference experiments which are far from each other are considered. They are irradiated with correlated nonclassical electromagnetic fields, produced by the same source. The phase factors are in this case operators, and their expectation values with respect to the density matrix of the electromagnetic field quantify the observed electron fringes. The correlated photons create correlations between the observed electron intensities. Both cases of classically correlated (separable) and quantum mechanically correlated (entangled) electromagnetic fields are considered. It is shown that the induced correlation between the distant electron interferences is sensitive to the nature of the correlation between the irradiating photons.

D. I. Tsomokos; C. C. Chong; A. Vourdas

2004-04-16T23:59:59.000Z

52

Superfluid {sup 4}He Quantum Interference Grating  

Science Conference Proceedings (OSTI)

We report the first observation of quantum interference from a grating structure consisting of four weak link junctions in superfluid {sup 4}He. We find that an interference grating can be implemented successfully in a superfluid matter wave interferometer to enhance its sensitivity while trading away some of its dynamic range. We also show that this type of device can be used to measure absolute quantum mechanical phase differences. The results demonstrate the robust nature of superfluid phase coherence arising from quantum mechanics on a macroscopic scale.

Sato, Yuki; Joshi, Aditya; Packard, Richard [Physics Department, University of California, Berkeley, California 94720 (United States)

2008-08-22T23:59:59.000Z

53

Comparison of morphological and wavelet based methods in intracranial pressure signal analysis  

Science Conference Proceedings (OSTI)

Analysis of Intracranial Pressure signal (ICP) to predict the abrupt increases is extremely important, because this sudden elevation can be life threatening and sign of secondary brain injury. Segments with three minute duration were then constructed ... Keywords: intracranial hypertension, intracranial pressure (ICP), traumatic brain injury (TBI)

Nooshin Nabizadeh; Kayvan Najarian

2010-05-01T23:59:59.000Z

54

Electromagnetically induced interference at superconducting qubits  

E-Print Network (OSTI)

We study electromagnetically induced interference at superconducting qubits. The interaction between qubits and electromagnetic fields can provide additional coupling channels to qubit states, leading to quantum interference in a microwave driven qubit. In particular, the interwell relaxation or Rabi oscillation, resulting respectively from the multi- or single-mode interaction, can induce effective crossovers. The environment is modeled by a multi-mode thermal bath, generating the interwell relaxation. Relaxation induced interference, independent of the tunnel coupling, provides deeper understanding to the interaction between the qubits and their environment. It also supplies a useful tool to characterize the relaxation strength as well as the characteristic frequency of the bath. In addition, we demonstrate the relaxation can generate population inversion in a strongly driving two-level system. On the other hand, different from Rabi oscillation, Rabi oscillation induced interference involves more complicated and modulated photon exchange thus offers an alternative means to manipulate the qubit, with more controllable parameters including the strength and position of the tunnel coupling. It also provides a testing ground for exploring nonlinear quantum phenomena and quantum state manipulation, in not only the flux qubit but also the systems with no crossover structure, e.g. phase qubits.

Lingjie Du; Yang Yu

2010-12-14T23:59:59.000Z

55

Televisions, video privacy, and powerline electromagnetic interference  

Science Conference Proceedings (OSTI)

We conduct an extensive study of information leakage over the powerline infrastructure from eight televisions (TVs) spanning multiple makes, models, and underlying technologies. In addition to being of scientific interest, our findings contribute to ... Keywords: electromagnetic interference, information leakage, powerline security

Miro Enev; Sidhant Gupta; Tadayoshi Kohno; Shwetak N. Patel

2011-10-01T23:59:59.000Z

56

A mathematical theory of network interference and its applications  

E-Print Network (OSTI)

n this paper, we introduce a mathematical framework for the characterization of network interference in wireless systems. We consider a network in which the interferers are scattered according to a spatial Poisson process ...

Shepp, Lawrence A.

57

Transmission Policies for Asymmetric Interference Channels with Energy Harvesting Nodes  

E-Print Network (OSTI)

Transmission Policies for Asymmetric Interference Channels with Energy Harvesting Nodes Kaya power policies to maximize sum capacity in an energy harvesting setting. It is shown derive optimal power allocation policies for interference channels comprised of energy harvesting

Yener, Aylin

58

Fundamental and methodological investigations for the improvement of elemental analysis by inductively coupled plasma mass soectrometry  

Science Conference Proceedings (OSTI)

This dissertation describes a variety of studies meant to improve the analytical performance of inductively coupled plasma mass spectrometry (ICP-MS) and laser ablation (LA) ICP-MS. The emission behavior of individual droplets and LA generated particles in an ICP is studied using a high-speed, high frame rate digital camera. Phenomena are observed during the ablation of silicate glass that would cause elemental fractionation during analysis by ICP-MS. Preliminary work for ICP torch developments specifically tailored for the improvement of LA sample introduction are presented. An abnormal scarcity of metal-argon polyatomic ions (MAr{sup +}) is observed during ICP-MS analysis. Evidence shows that MAr{sup +} ions are dissociated by collisions with background gas in a shockwave near the tip of the skimmer cone. Method development towards the improvement of LA-ICP-MS for environmental monitoring is described. A method is developed to trap small particles in a collodion matrix and analyze each particle individually by LA-ICP-MS.

Ebert, Christopher Hysjulien [Ames Laboratory

2012-07-27T23:59:59.000Z

59

Physical-Layer Modeling of UWB Interference Effects  

Science Conference Proceedings (OSTI)

Page 1. Contract MDA972-02-C-0056 NETEX UWB Interference Effects Approved for Public Release, Distribution Unlimited ...

2009-02-03T23:59:59.000Z

60

Periodic Materials and Interference Lithography for Photonics ... - TMS  

Science Conference Proceedings (OSTI)

02/28/2011 - Periodic Materials and Interference Lithography for Photonics, ... photonic crystals (electromagnetic wave propagation) and phononic crystals ...

Note: This page contains sample records for the topic "analysis icp interference" 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

Capacity Regions and Sum-Rate Capacities of Vector Gaussian Interference Channels  

E-Print Network (OSTI)

The capacity regions of vector, or multiple-input multiple-output, Gaussian interference channels are established for very strong interference and aligned strong interference. Furthermore, the sum-rate capacities are established for Z interference, noisy interference, and mixed (aligned weak/intermediate and aligned strong) interference. These results generalize known results for scalar Gaussian interference channels.

Shang, Xiaohu; Kramer, Gerhard; Poor, H Vincent

2009-01-01T23:59:59.000Z

62

Quantum interference of electromagnetic fields from remote quantum memories  

E-Print Network (OSTI)

We observe quantum, Hong-Ou-Mandel, interference of fields produced by two remote atomic memories. High-visibility interference is obtained by utilizing the finite atomic memory time in four-photon delayed coincidence measurements. Interference of fields from remote atomic memories is a crucial element in protocols for scalable generation of multi-node remote qubit entanglement.

T. Chaneliere; D. N. Matsukevich; S. D. Jenkins; S. -Y. Lan; R. Zhao; T. A. B. Kennedy; A. Kuzmich

2006-09-27T23:59:59.000Z

63

Light Vector Meson Photoproduction off of H at Jefferson Lab and rho-omega Interference in the Leptonic Decay Channel  

SciTech Connect

Recent studies of light vector meson production in heavy nuclear targets has generated interest in {rho}-{omega} interference in the leptonic e{sup +}e{sup -} decay channel. An experimental study of the elementary process provides valuable input for theoretical models and calculations. In experiment E04-005 (g12), high statistics photoproduction data has been taken in Jefferson Lab's Hall B with the Cebaf Large Acceptance Spectrometer (CLAS). The invariant mass spectrum is fitted with two interfering relativistic Breit-Wigner functions to determine the interference phase. Preliminary analysis indicate a measurable {rho}-{omega} interference.

Chaden Djalali

2011-12-01T23:59:59.000Z

64

Efficiency of Wireless Networks: Approximation Algorithms for the Physical Interference Model  

Science Conference Proceedings (OSTI)

In this monograph we survey results from a newly emerging line of research that targets algorithm analysis in the physical interference model. In the main part of our monograph we focus on wireless scheduling: given a set of communication requests, arbitrarily ...

Olga Goussevskaia; Yvonne-Anne Pignolet; Roger Wattenhofer

2010-03-01T23:59:59.000Z

65

Interference Induced Asymmetric Transmission Through A Monolayer of Anisotropic Chiral Metamolecules  

E-Print Network (OSTI)

We show that asymmetric transmission for linear polarizations can be easily achieved by a monolayer of anisotropic chiral metamolecules through the constructive and destructive interferences between the contributions from anisotropy and chirality. Our analysis is based on the interaction of electromagnetic waves with the constituent electric and magnetic dipoles of the metamaterials, and an effective medium formulation. In addition, asymmetric transmission in amplitude can be effectively controlled by the interference between spectrally detuned resonances. Our findings shed light on the design of metamaterials for achieving strong asymmetric transmission.

Zhang, Shuang; Zentgraf, Thomas; Li, Jensen

2013-01-01T23:59:59.000Z

66

“Age” Determination of Irradiated Materials Utilizing Inductively Coupled Plasma Mass Spectrometric (ICP-MS) Detection  

SciTech Connect

A gas pressurized extraction chromatography (GPEC) system has been developed to perform elemental separations on radioactive samples to determine total and isotopic compositions of Cs and Ba from an irradiated salt sample, fuel sample and two sealed radiation sources. The separation is necessary to remove isobaric interferences in the determination of 137Cs, 135Cs, 137Ba, 135Ba, which are used to determine the age of a sample from radioactive decay or purification. The micro-column extraction chromatography system employs compressed nitrogen to move liquid through the system, compared to gravity or pumped liquids that are typically used for separations. The use of compressed gas allows for accurate and precise recovery of all liquids put into the chromatography system, enabling very accurate dilutions. The use of a small analytical column permits the use of very small amounts of liquids to be used. As a benefit, the amount of radiological waste that is generated in the separation process is minimized. For this work, a commercially available Sr-Resin™ was used to perform the separation for the above mentioned analytes. The column consists of a 7 inch piece of 1/16 in. O.D. x 0.030 in I.D. Teflon™ tubing having an internal volume of 81 µL. To this column, 49 mg of resin was added. The columns are re-usable after regeneration with 3 M HNO3. All samples were separated using batch collection, although real time analysis is possible with the current experimental design. A 1 % acetic acid solution was determined to be the best extractant for Ba. A flow rate of 0.1 mL/min was determined to be optimal for the separation of Ba. Complete recovery of the Cs and Ba was achieved, within the systematic error of the experiments.

James Sommers; Jeffrey J. Giglio, Ph,D,; Daniel Cummings; Kevin P. Carney, Ph.D>

2009-11-01T23:59:59.000Z

67

Multi-Photon Interference and Temporal Distinguishability of Photons  

E-Print Network (OSTI)

A number of recent interference experiments involving multiple photons are reviewed. These experiments include generalized photon bunching effects, generalized Hong-Ou-Mandel interference effects and multi-photon interferometry for demonstrations of multi-photon de Broglie wavelength. The multi-photon states used in these experiments are from two pairs of photons in parametric down-conversion. We find that the size of the interference effect in these experiments, characterized by the visibility of interference pattern, is governed by the degree of distinguishability among different pairs of photons. Based on this discovery, we generalize the concept of multi-photon temporal distinguishability and relate it to a number of multi-photon interference effects. Finally, we make an attempt to interpret the coherence theory by the multi-photon interference via the concept of temporal distinguishability of photons.

Z. Y. Ou

2007-08-01T23:59:59.000Z

68

Multi-Photon Interference and Temporal Distinguishability of Photons  

E-Print Network (OSTI)

A number of recent interference experiments involving multiple photons are reviewed. These experiments include generalized photon bunching effects, generalized Hong-Ou-Mandel interference effects and multi-photon interferometry for demonstrations of multiphoton de Broglie wavelength. The multi-photon states used in these experiments are from two pairs of photons in parametric down-conversion. We find that the size of the interference effect in these experiments, characterized by the visibility of interference pattern, is governed by the degree of distinguishability among different pairs of photons. Based on this discovery, we generalize the concept of multi-photon temporal distinguishability and relate it to a number of multi-photon interference effects. Keywords: Interference; Distinguishability; Photon Counting. 1.

Z. Y. Ou

2008-01-01T23:59:59.000Z

69

Aerodynamic interference between two Darrieus wind turbines  

DOE Green Energy (OSTI)

The effect of aerodynamic interference on the performance of two curved bladed Darrieus-type vertical axis wind turbines has been calculated using a vortex/lifting line aerodynamic model. The turbines have a tower-to-tower separation distance of 1.5 turbine diameters, with the line of turbine centers varying with respect to the ambient wind direction. The effects of freestream turbulence were neglected. For the cases examined, the calculations showed that the downwind turbine power decrement (1) was significant only when the line of turbine centers was coincident with the ambient wind direction, (2) increased with increasing tipspeed ratio, and (3) is due more to induced flow angularities downstream than to speed deficits near the downstream turbine.

Schatzle, P.R.; Klimas, P.C.; Spahr, H.R.

1981-04-01T23:59:59.000Z

70

Long working distance incoherent interference microscope  

DOE Patents (OSTI)

A full-field imaging, long working distance, incoherent interference microscope suitable for three-dimensional imaging and metrology of MEMS devices and test structures on a standard microelectronics probe station. A long working distance greater than 10 mm allows standard probes or probe cards to be used. This enables nanometer-scale 3-dimensional height profiles of MEMS test structures to be acquired across an entire wafer while being actively probed, and, optionally, through a transparent window. An optically identical pair of sample and reference arm objectives is not required, which reduces the overall system cost, and also the cost and time required to change sample magnifications. Using a LED source, high magnification (e.g., 50.times.) can be obtained having excellent image quality, straight fringes, and high fringe contrast.

Sinclair, Michael B. (Albuquerque, NM); De Boer, Maarten P. (Albuquerque, NM)

2006-04-25T23:59:59.000Z

71

Electromagnetic Interference with Implanted Medical Devices: An Update  

Science Conference Proceedings (OSTI)

Electric and magnetic fields (EMF) and contact currents at both power and radio frequencies can interfere with the functioning of implanted medical electronic devices. In both public and occupational environments, electromagnetic interference issues are now exacerbated by the exponential increase in sources of interference over the last decade, an increasing variety of types of susceptible devices, and greater potential for unintended consequences that can be serious. This technical update discusses pote...

2008-09-18T23:59:59.000Z

72

Multilevel interference lithography--fabricating sub-wavelength periodic nanostructures  

E-Print Network (OSTI)

Periodic nanostructures have many exciting applications, including high-energy spectroscopy, patterned magnetic media, photonic crystals, and templates for self-assembly. Interference lithography (IL) is an attractive ...

Chang, Chih-Hao, 1980-

2008-01-01T23:59:59.000Z

73

Z' at the LHC: Interference and Finite Width Effects in Drell-Yan  

E-Print Network (OSTI)

The interference effects between an extra neutral spin-1 Z'-boson and the Standard Model background in the Drell-Yan channel at the LHC are studied in detail. The final state with two oppositely charged leptons is considered. The interference contribution to the new physics signal, currently neglected by experimental collaborations in Z'-searches and in the interpretation of the results, can be substantial. It may affect limits or discovery prospects of Z' at the LHC. As the Z'-boson interference is model-dependent, a proper treatment would a priori require a dedicated experimental analysis for each particular model. Doing so could potentially improve the sensitivity to new physics, but would require a much bigger effort from the experimental side. At the same time, it is shown that one can define an invariant mass window, valid for a wide range of models, for which the contribution of the model-dependent interference to the Beyond the Standard Model signal is reduced down to O(10%) level, comparable to the level of the combined uncertainty from parton densities and higher order corrections. This quasi-model independent "magic cut" does not scale with the mass of the Z'-boson and is approximately constant over a large range of masses. Such a control of the interference effects relies on not-too-small branching ratios of Z' to leptons which can be suppressed, however, by an additional new decay channels of the Z' increasing the interference effect. Under the general assumption that these new decay chanels of Z' are not dominant, one can perform quasi-model independent analyses, preserving the current scheme used by the experimental collaborations for the Z'-boson search using the suggested invariant mass window cut.

Elena Accomando; Diego Becciolini; Alexander Belyaev; Stefano Moretti; Claire Shepherd-Themistocleous

2013-04-24T23:59:59.000Z

74

Radio Interference From HVDC Converter Stations, Modeling and Characterization  

Science Conference Proceedings (OSTI)

High-voltage direct-current converter stations generate electromagnetic interference (EMI) that can affect the performance of nearby electronic equipment. A prototype computer program that calculates EMI characteristics in the 5-500-kHz range will enable utility engineers to determine the extent of such interference during the design stage of a converter station.

1986-12-16T23:59:59.000Z

75

Interference-aware broadcast scheduling in wireless networks  

Science Conference Proceedings (OSTI)

In this paper, we study the Interference-Aware Broadcast Scheduling problem, where all nodes in the Euclidean plane have a transmission range and an interference range equal to r and @a r for @a>=1, respectively. Minimizing latency is known to be NP-Hard ... Keywords: Approximation algorithm, Broadcast, Heuristics, Integer linear program, Latency minimization

Gruia Calinescu; Sutep Tongngam

2011-09-01T23:59:59.000Z

76

Strong-field spatial interference in a tailored electromagnetic bath  

E-Print Network (OSTI)

Light scattered by a regular structure of atoms can exhibit interference signatures, similar to the classical double-slit. These first-order interferences, however, vanish for strong light intensities, restricting potential applications. Here, we show how to overcome these limitations to quantum interference in strong fields. First, we recover the first-order interference in strong fields via a tailored electromagnetic bath with a suitable frequency dependence. At strong driving, the optical properties for different spectral bands are distinct, thus extending the set of observables. We further show that for a two-photon detector as, e.g., in lithography, increasing the field intensity leads to twice the spatial resolution of the second-order interference pattern compared to the weak-field case.

M. Macovei; J. Evers; G. -x. Li; C. H. Keitel

2006-06-19T23:59:59.000Z

77

Steam Reforming Application for Treatment of DOE Sodium Bearing Tank Wastes at INL for ICP  

SciTech Connect

The patented THOR® steam reforming waste treatment technology has been selected as the technology of choice for treatment of Sodium Bearing Waste (SBW) at the Idaho National Laboratory (INL) for the Idaho Cleanup Project (ICP). SBW is an acidic tank waste at the Idaho Nuclear Technology and Engineering Center (INTEC) at INL. It consists primarily of waste from decontamination activities and laboratory wastes. SBW contains high concentrations of nitric acid, alkali and aluminum nitrates, with minor amounts of many inorganic compounds including radionuclides, mainly cesium and strontium. The THOR® steam reforming process will convert the SBW tank waste feed into a dry, solid, granular product. The THOR® technology was selected to treat SBW, in part, because it can provide flexible disposal options to accommodate the final disposition path selected for SBW. THOR® can produce a final end-product that will meet anticipated requirements for disposal as Remote-Handled TRU (RH-TRU) waste; and, with modifications, THOR® can also produce a final endproduct that could be qualified for disposal as High Level Waste (HLW). SBW treatment will be take place within the Integrated Waste Treatment Unit (IWTU), a new facility that will be located at the INTEC. This paper provides an overview of the THOR® process chemistry and process equipment being designed for the IWTU.

J. Bradley Mason; Kevin Ryan; Scott Roesener; Michael Cowen; Duane Schmoker; Pat Bacala; Bill Landman

2006-03-01T23:59:59.000Z

78

Validation of Electrochemically Modulated Separations Performed On-Line with MC-ICP-MS for Uranium and Plutonium Isotopic Analyses  

Science Conference Proceedings (OSTI)

The most time consuming process in uranium or plutonium isotopic analyses is performing the requisite chromatographic separation of the actinides. Filament preparation for thermal ionization (TIMS) adds further delays, but is generally accepted due to the unmatched performance in trace isotopic analyses. Advances in Multi-Collector Inductively Coupled Plasma Mass Spectrometry (MC-ICP-MS) are beginning to rival the performance of TIMS. Methods, such as Electrochemically Modulated Separations (EMS) can efficiently pre-concentrate U or Pu quite selectively from small solution volumes in a matrix of 0.5 M nitric acid. When performed in-line with ICP-MS, the rapid analyte release from the electrode is fast, and large transient analyte signal enhancements of >100 fold can be achieved as compared to more conventional continuous nebulization of the original starting solution. This makes the approach ideal for very low level isotope ratio measurements. In this paper, some aspects of EMS performance are described. These include low level Pu isotope ratio behavior versus concentration by MC-ICP-MS and uranium rejection characteristics that are also important for reliable low level Pu isotope ratio determinations.

Liezers, Martin; Olsen, Khris B.; Mitroshkov, Alexandre V.; Duckworth, Douglas C.

2010-08-11T23:59:59.000Z

79

Generator On-Line Monitoring and Condition Assessment: Partial Discharge and Electromagnetic Interference  

Science Conference Proceedings (OSTI)

Partial discharge (PD) and electromagnetic interference (EMI) on-line testing have been promoted as means to assess the condition of turbine-driven generator stator winding insulation systems. This fourth interim report traces the stator insulation condition of various selected utility machines in service in an ongoing effort to provide an objective comparison of methods of assessing the "health" of a variety of large generator types using PD and EMI analysis.

2005-05-12T23:59:59.000Z

80

Generator On-Line Monitoring and Condition Assessment, Partial Discharge and Electromagnetic Interference  

Science Conference Proceedings (OSTI)

On-line partial discharge (PD) and electromagnetic interference (EMI) analysis systems have been promoted as a means to assess the condition of turbine-driven generator stator winding insulation systems. Although PD is a time-domain measurement and EMI measures activity with a frequency scan, both techniques still evaluate the same phenomenon -- high-frequency currents that flow as a result of electrical (partial) discharges occurring within the structure. This report documents EPRI's ongoing initiative ...

2004-09-10T23:59:59.000Z

Note: This page contains sample records for the topic "analysis icp interference" 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

Computerized data acquisition system for production, injection and interference tests  

DOE Green Energy (OSTI)

A computer-based system for collecting, processing, and analyzing pressure transient data has been developed. Primary components include downhole pressure sensors, linedrivers, a micro-computer, data storage disk, scanner, frequency counter, digital voltmeter, power supply, graphics plotter, and printer. In-field data processing and analysis greatly aid in handling the large volume of data that are collected during pressure transients tests, particularly the multiwell interference tests that are so important for characterizing and assessing geothermal reservoirs. In-field data processing provides the field engineer, on a real-time basis, with the information needed to make decisions regarding test parameters and duration. The system has been used on numerous occasions and has proved itself to be reliable under the harsh operating conditions that are usually encountered in the field. This paper describes the advantages of using this type of system for collecting data, the components and configuration of the system, and the software programs used to collect and process the data. Finally, two field applications are presented.

Benson, S.M.

1986-06-01T23:59:59.000Z

82

On Digital Radio Receiver Performance in Electromagnetic Interference Environments  

E-Print Network (OSTI)

adiated emission from electronic equipment, co-located to a digital radio receiver, can affect receiving performance. It is therefore of great importance that this undesired emission be considered in the early design phase of a system containing radio equipment. For this purpose, methods to estimate the performance degradation on digital radio receivers in such environment must be available. From a military point of view, such methods are necessary for at least two important situations; 1) The communication system is not subject to interference from hostile jammers. In this case, undesired electromagnetic interference will decrease the operating range of the radio link. 2) The communication system is subject to interference from hostile jammers. In this case, the ability to withstand jamming is degraded by the undesired interference, as the latter degrades the signal protection devices in the communication system. A tactical consequence of this is that the jammer can obtain the same ...

Peter Stenumgaard; Peter Stenumgaard; Isrn Kth/rst/r--/ --se

1999-01-01T23:59:59.000Z

83

Trapped Lee Wave Interference in the Presence of Surface Friction  

Science Conference Proceedings (OSTI)

Trapped lee wave interference over double bell-shaped obstacles in the presence of surface friction is examined. Idealized high-resolution numerical experiments with the nonhydrostatic Coupled Ocean–Atmosphere Mesoscale Prediction System (COAMPS) ...

Ivana Stiperski; Vanda Grubiši?

2011-04-01T23:59:59.000Z

84

Medical Devices: Electromagnetic Interference Status and the Role of Standards  

Science Conference Proceedings (OSTI)

This technical update discusses the role of voluntary and regulatory standards in determining the risks of interference from electric and magnetic fields (EMF) with the functioning of implantable and wearable medical devices. The update covers frequencies from the extremely low frequency (ELF) range through the radio-frequency (RF) range. It augments a 2008 EPRI technical update on electromagnetic interference (EMI) with newer types of implanted medical devices (1016815) and previous EPRI publications th...

2009-12-22T23:59:59.000Z

85

Interference in above-threshold-ionization electron distributions from molecules  

SciTech Connect

We present quantum-mechanical studies on above-threshold ionization of molecular ions in two and three dimensions. The momentum distributions show signatures of interfering emissions from the molecular centers. These structures deviate from a simple double-slit model that ignores the electron-ion interaction, but they are reproduced by an eikonal model. Such distortions of the interference pattern are partly responsible for the absence of clear interference patterns in the angle-integrated electron energy spectra.

Henkel, Jost [Institut fuer Physikalische und Theoretische Chemie, Universitaet Wuerzburg, and Roentgen Research Center for Complex Material Systems, Am Hubland, D-97074 Wuerzburg (Germany); Institut fuer Theoretische Physik and Centre for Quantum Engineering and Space-Time Research (QUEST), Leibniz Universitaet Hannover Appelstrasse 2, D-30167 Hannover (Germany); Lein, Manfred [Institut fuer Theoretische Physik and Centre for Quantum Engineering and Space-Time Research (QUEST), Leibniz Universitaet Hannover Appelstrasse 2, D-30167 Hannover (Germany); Engel, Volker [Institut fuer Physikalische und Theoretische Chemie, Universitaet Wuerzburg, and Roentgen Research Center for Complex Material Systems, Am Hubland, D-97074 Wuerzburg (Germany)

2011-05-15T23:59:59.000Z

86

Two-photon interference with true thermal light  

E-Print Network (OSTI)

Two-photon interference and "ghost" imaging with entangled light have attracted much attention since the last century because of the novel features such as non-locality and sub-wavelength effect. Recently, it has been found that pseudo-thermal light can mimic certain effects of entangled light. We report here the first observation of two-photon interference with true thermal light.

Yan-Hua Zhai; Xi-Hao Chen; Da Zhang; Ling-An Wu

2005-06-07T23:59:59.000Z

87

Electromagnetic Interference and the Pacemaker Patient T1-Electromagnetic Interference and the Pacemaker Patient 10/03/03  

E-Print Network (OSTI)

While clinically significant problems with electromagnetic interference (EMI) are rare, a pacemaker’s response to EMI becomes more diverse as technology advances. Pacemaker manufacturers continue to develop interference protection circuitry to keep up with these vast sources of EMI. The pacemaker’s response to EMI is dependent on the characteristics of the EMI, proximity to the interference, available shielding, and the sensing characteristics and polarity of the pacemaker. The pacemaker circuitry is designed to attenuate any interference outside the normal intracardiac range (10 Hz – 100 Hz). This is achieved by using bandpass filters. EMI sources can be broadly classified as galvanic, electromagnetic or magnetic. • Galvanic interference requires direct contact with electrical current. This is most often seen in defibrillation/cardioversion, cautery, TENS units and diathermy. • Electromagnetic or electrically coupled interference does not require direct body contact. This interference is most often seen with arc welders, ham radios, electrical appliances, metal detectors, therapeutic ultrasound and high voltage power lines. • Magnetic interference occurs when a patient comes in close proximity with an intense magnetic field. This is often seen in nuclear magnetic resonance imaging (NMR/MRI) and steel mill induction furnaces. EMI with signal modulation can mimic normal intracardiac signals. When detected, the response to EMI may present itself as a single beat inhibition, total inhibition, noise reversion/asynchronous pacing, rate increase, erratic pacing, or no output. These responses are usually temporary, but can be permanent if the pulse generator circuitry is damaged. A pacemaker’s response to EMI is highly dependent on the specific EMI source, the pacemaker’s mode, and sensing polarity. Included is a list that details the interaction of commonly encountered pacemaker EMI sources. Accompanying this list is a summary table of these sources and reported associated pacemaker responses.

Rev A

1998-01-01T23:59:59.000Z

88

The General Quantum Interference Principle and the Duality Computer  

E-Print Network (OSTI)

In this article, we propose a general principle of quantum interference for quantum system, and based on this we propose a new type of computing machine, the duality computer, that may outperform in principle both classical computer and the quantum computer. According to the general principle of quantum interference, the very essence of quantum interference is the interference of the sub-waves of the quantum system itself. A quantum system considered here can be any quantum system: a single microscopic particle, a composite quantum system such as an atom or a molecule, or a loose collection of a few quantum objects such as two independent photons. In the duality computer, the wave of the duality computer is split into several sub-waves and they pass through different routes, where different computing gate operations are performed. These sub-waves are then re-combined to interfere to give the computational results. The quantum computer, however, has only used the particle nature of quantum object. In a duality computer, it may be possible to find a marked item from an unsorted database using only a single query, and all NP-complete problems may have polynomial algorithms. Two proof-of-the-principle designs of the duality computer are presented: the giant molecule scheme and the nonlinear quantum optics scheme. We also proposed thought experiment to check the related fundamental issues, the measurement efficiency of a partial wave function

Gui Lu Long

2005-12-15T23:59:59.000Z

89

Test of some Fundamental Principles in Physics via Quantum Interference with Neutrons and Photons  

E-Print Network (OSTI)

The limitations and possibilities that the concept of quantum interference offers as a tool for testing fundamental physics are explored here. The use of neutron interference as an instrument to confront against measurement readouts some of the principles behind metric theories of gravity will be analyzed, as well as some discrepancies between theory and experiment. The main restrictions that this model embodies for the study of some of the features of the structure of space--time will be explicitly pointed out. For instance, the conditions imposed by the necessary use of the semiclassical approximation. Additionally, the role that photon interference could play as an element in this context is also considered. In this realm we explore the differences between first-order and second-order coherence experiments, and underline the fact that the Hanbury--Brown--Twiss effect could open up some interesting experimental possibilities in the analysis of the structure of space--time. The void, in connection with the description of wave phenomena, implicit in the principles of metric theories is analyzed. The conceptual difficulties, that this void entails, are commented.

Abel Camacho; Abel Camacho-Galvan

2008-10-08T23:59:59.000Z

90

Observation of two-photon interference with temporally non-overlapping coherent pulses  

E-Print Network (OSTI)

We report experiments on two-photon interference between temporally non-overlapping weak coherent pulses. While the single-photon interference is washed out, the two-photon interference shows a Hong-Ou-Mandel dip with visibility of $0.50\\pm0.09$, which shows that the two-photon classical interference does not require temporal overlapping between optical pulses.

Kim, Yong-Su; Kuo, Paulina S; Tang, Xiao

2013-01-01T23:59:59.000Z

91

An interference wiggler for precise diagnostics of electron beam energy  

SciTech Connect

Relativistic electrons passing through two identical magnetic sections generate synchrotron radiation whose spectrum is strongly modulated as the photon energy varies. The modulation is caused by the interference of radiation from each section, and has been observed in the spectrum of spontaneous radiation from transverse optical klystron which utilizes two undulators. In this paper, another device based on two simple wigglers is analyzed. The device, which will be called the interference wiggler, can be used for precise diagnostics of electron beam energy; by analyzing the modulated spectrum with a monochromator, the electron energy can be determined up to an accuracy of 10/sup -3/ or 10/sup -4/. General design criteria for interference wigglers are developed. Several example designs are given for measurement of the electron energy for the planned electron beam facility at CEBAF for the 1 to 2 GeV Light Source at Berkeley.

Kim, Kwang-Je

1987-03-01T23:59:59.000Z

92

On-chip quantum interference between two silicon waveguide sources  

E-Print Network (OSTI)

Integrated quantum optics promises to enhance the scale and functionality of quantum technologies, and has become a leading platform for the development of complex and stable quantum photonic circuits. Here, we report the on-chip generation and manipulation of two-photon entanglement, and high-visibility quantum interference with two photon-pair sources integrated within a reconfigurable silicon-on-insulator photonic circuit. Degenerate and non-degenerate entangled photon pairs were created and manipulated on-chip to exhibit quantum interference with visibility as high as 100.0 +/- 0.4%. Our device presents integration of photon-pair sources with dynamic quantum photonic circuitry, and the first high-visibility quantum interference between on-chip sources. These results represent a path to the next generation of monolithic quantum photonic circuits with integrated sources.

Joshua Silverstone; Damien Bonneau; Kazuya Ohira; Nob Suzuki; Haruhiko Yoshida; Norio Iizuka; Mizunori Ezaki; Robert Hadfield; Graham D. Marshall; Val Zwiller; John Rarity; Jeremy OBrien; Mark Thompson

2013-04-04T23:59:59.000Z

93

Quantum Path Interference through Incoherent Motions in Multilevel Quantum Systems  

E-Print Network (OSTI)

The fluctuating incoherent environment in the condensed phase plays an important role in the dynamics and steady states of open quantum systems. The most fascinating aspect in open quantum systems is quantum coherence induced by path interference of incoherent motions. We propose a modified Ehrenfest scheme to study the path interference of incoherent motions in multi-level quantum systems. The detailed balance is enforced by considering the quantum correction of two-time correction functions based on second order master (rate) equations. With the modified Ehrenfest method, we can study the steady state populations and other quantum observables under different thermal dynamic conditions, such as energy relaxation and non-Markovian effects. For the three level system under incoherent coupling, we show how the steady state populations are influenced by the quantum path interference of incoherent fluctuations (Agarwal-Fano-like interference). We discuss the modified Ehrenfest method and its connection with stochastic Langevin equations and second order master equations. Most existing quantum MD simulation methods, particularly Master equation techniques, fall into the category of the weak coupling limit due to the nature of detailed balance. Although the modified Ehrenfest method is amicable to second-order master equations, it is actually a better way to model the quantum path interference since it preserves multi-time memory kernels. Therefore, it enables us to study the quantum path interference. This method can be used as quantum MD simulators for large open quantum systems like solar cell, (organic) LED, etc. The future extension of this method beyond the modified Ehrenfest scheme can be done with efficient wavepacket propagation methods by treating the bath modes in full quantum mechanical way.

Xin Chen

2013-05-17T23:59:59.000Z

94

Customer Electromagnetic Compatibility: A Study on Interference Issues  

Science Conference Proceedings (OSTI)

Electromagnetic compatibility (EMC) has been a problem since before the invention of radio. The proliferation of ever-more sensitive electronic devices has made EMC and RFI into quite pervasive problems. When confronted with an interference problem, it is easy and tempting to automatically blame the electric power company or the radio amateur next door, but in fact the source may be right in the interference recipient's own home. Or, because of the long-distance propagation of radio waves, it may turn ou...

2004-12-20T23:59:59.000Z

95

Radiation interference from sources rotating around Schwarzschild black holes  

E-Print Network (OSTI)

We investigate the influence of the spacetime curvature on the interference of the radiation emitted by an ensemble of scalar sources in circular motion around a Schwarzschild black hole. We pay particular attention to the transition from the radiating to the non-radiating regime as the number of sources increases.

Mendes, Raissa F P

2011-01-01T23:59:59.000Z

96

Electromagnetic interferences from plasmas generated in meteoroids impacts  

E-Print Network (OSTI)

Submitted to Europhysics Letters. It is shown that the plasma, generated during an impact of a meteoroid with an artificial satellite, can produce electromagnetic radiations below the microwave frequency range. These interferences can disturb the regular satellite operations. Pacs 96.50.Kr: Meteors and meteoroids. Pacs 52.50.Lp: Plasma production and heating by shock waves and compression.

Luigi Foschini

1998-01-01T23:59:59.000Z

97

Electromagnetic interferences from plasmas generated in meteoroids impacts  

E-Print Network (OSTI)

It is shown that the plasma, generated during an impact of a meteoroid with an artificial satellite, can produce electromagnetic radiation below the microwave frequency range. This interference is shown to exceed local noise sources and might disturb regular satellite operations.

Luigi Foschini

1998-04-23T23:59:59.000Z

98

Interband transitions and interference effects in superconducting qubits  

Science Conference Proceedings (OSTI)

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

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

2009-06-01T23:59:59.000Z

99

A Cautionary Tale of Caterpillars and Selectional Interference  

E-Print Network (OSTI)

A Cautionary Tale of Caterpillars and Selectional Interference W. Garrett Mitchener December 14-trivial. In laboratory experiments by Nijhout and in computer simulations, one can selectively breed caterpillars based experiments and computer simulations yield striking complexity. Selecting for size and time simultaneously

Mitchener, W. Garrett

100

Radio astronomical imaging in the presence of strong radio interference  

E-Print Network (OSTI)

Abstract—Radio-astronomical observations are increasingly contaminated by interference, and suppression techniques become essential. A powerful candidate for interference mitigation is adaptive spatial filtering. We study the effect of spatial filtering techniques on radio-astronomical imaging. Current deconvolution procedures, such as CLEAN, are shown to be unsuitable for spatially filtered data, and the necessary corrections are derived. To that end, we reformulate the imaging (deconvolution/calibration) process as a sequential estimation of the locations of astronomical sources. This not only leads to an extended CLEAN algorithm, but also the formulation allows the insertion of other array signal processing techniques for direction finding and gives estimates of the expected image quality and the amount of interference suppression that can be achieved. Finally, a maximum-likelihood (ML) procedure for the imaging is derived, and an approximate ML image formation technique is proposed to overcome the computational burden involved. Some of the effects of the new algorithms are shown in simulated images. Index Terms—CLEAN, interference mitigation, maximum likelihood, minimum variance, parametric imaging, radio astronomy, spatial filtering, synthesis imaging. I.

Amir Leshem; Alle-jan Van Der Veen

2000-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "analysis icp interference" 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

Non-interference on UML state-charts  

Science Conference Proceedings (OSTI)

Non-interference is a semantically well-defined property that allows one to reason about the security of systems with respect to information flow policies for groups of users. Many of the security problems of implementations could be already spotted ...

Martín Ochoa; Jan Jürjens; Jorge Cuéllar

2012-05-01T23:59:59.000Z

102

Interference-aware ieee 802.16 wimax mesh networks  

E-Print Network (OSTI)

Abstract — The IEEE 802.16 WiMax standard provides a mechanism for creating multi-hop mesh, which can be deployed as a high speed wide-area wireless network. To realize the full potential of such high-speed IEEE 802.16 mesh networks, two efficient wireless radio resource allocation extensions were developed. The objective of this paper is to propose an efficient approach for increasing the utilization of WiMax mesh through appropriate design of multi-hop routing and scheduling. As multiple-access interference is a major limiting factor for wireless communication systems, we adopt here an interference-aware cross-layer design to increase the throughput of the wireless mesh network. In particular, our scheme creates a tree-based routing framework, which along with scheduling is interference aware and results in a much higher spectral efficiency. Performance evaluation results show that the proposed interference-aware scheme achieves significant throughput enhancement over the basic IEEE 802.16 mesh network.

Hung-yu Wei; Samrat Ganguly; Rauf Izmailov

2005-01-01T23:59:59.000Z

103

Quantitative 3-D Elemental Mapping by LA-ICP-MS of a Basaltic Clast from the Hanford 300 Area, Washington, USA  

E-Print Network (OSTI)

Quantitative 3-D Elemental Mapping by LA-ICP-MS of a Basaltic Clast from the Hanford 300 Area collected from the Hanford 300 Area in south-central Washington State, United States. A calibration method and riparian quality in many locations, most notably at the Hanford, Savannah River, Oak Ridge, and Nevada Test

Hu, Qinhong "Max"

104

Guidelines for Electromagnetic Interference Testing in Power Plants: Revision 1  

Science Conference Proceedings (OSTI)

Concern about the effect of electromagnetic emissions on the safe, reliable operation of digital equipment has resulted in requirements for utilities to create detailed emissions maps. This guide identifies emissions sources in nuclear power plants, recommends susceptibility and emissions standards, and details design and layout practices for minimizing susceptibility to electromagnetic interference (EMI). Revision 1 reflects modifications to the original document, which received NRC approval in a Safety...

1997-04-16T23:59:59.000Z

105

Quantum Path Interference through Incoherent Motions in Multilevel Quantum Systems  

E-Print Network (OSTI)

Quantum path interferences or resonances in multilevel dissipative quantum systems play an important and intriguing role in the transport processes of nanoscale systems. Many previous minimalistic models used to describe the quantum path interference driven by incoherent fields are based on the approximations including the second order perturbation for the weak coupling limit, the ad-hoc choices of two-time correlation functions and $\\it{etc}$. On the other hand, the similar model to study the non-adiabatic molecular electronic excitation have been extensively developed and many efficient quantum molecular dynamics simulation schemes, such as the Ehrenfest scheme, have been proposed. In this paper, I aim to propose an unified model, extend the Ehrenfest scheme to study the interactions of system-light and system-phonon simultaneously and gain insight into and principles of the roles of quantum path interferences in the realistic molecular systems. I discuss how to derive the time-dependent stochastic Schr$\\ddot{o}$dinger equation from the Ehrenfest scheme as a foundation to discuss the detailed balance for the weak coupling limit and therefore the quantum correction in the Ehrenfest scheme. Different from the master equation technique, the Ehrenfest scheme doesn't need any specific assumptions about spectral densities and two time correlation functions. With simple open two-level and three-level quantum systems, I show the effect of the quantum path interference on the steady state populations. Currently I only focus on the role of the phonon thermal reservoir. The electromagnetic field (solar light) will be modeled as a thermal reservoir and discussed in detail in the future paper.

Xin Chen

2013-05-17T23:59:59.000Z

106

Stray current interference control for HVDC earth currents  

SciTech Connect

High-voltage direct current (HVDC) transmission lines exist around the world, with several in the US. When one conductor must be taken out of operation (in case of emergency), the earth may be used as an alternate conductor. The earth current may be accumulated on and discharged from underground metallic structures that cross the voltage gradient created by the current. Test results on two lines showed that stray current interference is not a major problem if mitigated properly.

Fitzgerald, J.H. III [PSG Corrosion Engineering/Corrpro Cos., Detroit, MI (United States); Kroon, D.H. [Corrpro Companies Inc., Spring, TX (United States)

1995-06-01T23:59:59.000Z

107

Method of making an improved superconducting quantum interference device  

DOE Patents (OSTI)

An improved superconducting quantum interference device is made by sputtering a thin film of an alloy of three parts niobium to one part tin in a pattern comprising a closed loop with a narrow region, depositing a thin film of a radiation shield such as copper over the niobium-tin, scribing a narrow line in the copper over the narrow region, exposing the structure at the scribed line to radiation and removing the deposited copper.

Wu, Cheng-Teh (Hinsdale, IL); Falco, Charles M. (Woodridge, IL); Kampwirth, Robert T. (Darien, IL)

1977-01-01T23:59:59.000Z

108

Interference of a thermal Tonks gas on a ring  

E-Print Network (OSTI)

A nonzero temperature generalization of the Fermi-Bose mapping theorem is used to study the exact quantum statistical dynamics of a one-dimensional gas of impenetrable bosons on a ring. We investigate the interference produced when an initially trapped gas localized on one side of the ring is released, split via an optical-dipole grating, and recombined on the other side of the ring. Nonzero temperature is shown not to be a limitation to obtaining high visibility fringes.

Kunal K. Das; M. D. Girardeau; E. M. Wright

2002-05-28T23:59:59.000Z

109

Observation of Interference Patterns in Reconstructed Digital Holograms of Atmospheric Ice Crystals  

Science Conference Proceedings (OSTI)

The observation of interference patterns in reconstructed digital holograms of natural ice crystals is reported. It is suggested that an investigation of the interference fringes’ origin will yield a new application of holography in atmospheric ...

Sebastian M. F. Raupach

2009-12-01T23:59:59.000Z

110

Interference cancellation schemes for single-carrier block transmission with insufficient cyclic prefix  

Science Conference Proceedings (OSTI)

This paper proposes intersymbol interference (ISI) and interblock interference (IBI) cancellation schemes at the transmitter and the receiver for the single-carrier block transmission with insufficient cyclic prefix (CP). The proposed scheme at the transmitter ...

Kazunori Hayashi; Hideaki Sakai

2008-01-01T23:59:59.000Z

111

A study on the effects of soft interference cancellation for uplink WCDMA system  

E-Print Network (OSTI)

WCDMA system is an interference limited system. Interference cancellation (IC) is a technique that has been widely studied and implemented for WCDMA uplink system to achieve performance close to potential capacity. Most ...

Qi, Tianren

2011-01-01T23:59:59.000Z

112

Designing of transparency windows by quantum interference of wave packets  

Science Conference Proceedings (OSTI)

It has been shown that control over the design of single- or multimode-transparency windows can be achieved by control-probe quantum interferometry using two delayed phase-locked ultrashort pulses. We have investigated how single- or multimode-transparency windows can be designed by eliminating the absorption to a set of odd or even vibrational levels of a molecule covered by the spectral bandwidth of the pulses. Suppression of absorption can be achieved by controlling the quantum interference of two vibrational wave packets excited by these two pulses, leading to destructive interference of transition amplitudes for one set of vibrational levels even or odd. Simuntaneously the interference becomes constructive for the other set of odd or even vibrational levels, leading to absorption to these levels. Thus, a set of transparency windows is designed in between two absorption peaks at two consecutive odd (even) vibrational levels by eliminating absorption at even (odd) vibrational levels between two absorption peaks. If the spectral bandwidth of the pulse [full width at half maximum (FWHM)] is less than the energy difference between two consecutive absorption peaks, the pulse will be transmitted without absorption through the transparency window. However, for pulses with a larger spectral bandwidth (FWHM), a set of broad transparency windows will be generated and different bands of pulse frequencies will be transmitted through these windows. We have shown that coherent control of the design of transparency windows can be achieved by controlling pulse duration, carrier frequency, delay, and the phase difference of two ultrashort pulses.

Dastidar, Krishna Rai [Department of Spectroscopy, Indian Association for the Cultivation of Science, Kolkata 700032 (India); Bhattacharjee, Anindita [1035 Aster Ave., Apt. 2131, Sunnyvale, California 94086 (United States)

2010-07-15T23:59:59.000Z

113

Interference in the resonance fluorescence of two incoherently coupled transitions  

E-Print Network (OSTI)

The fluorescence light emitted by a 4-level system in $J=1/2$ to $J=1/2$ configuration driven by a monochromatic laser field and in an external magnetic field is studied. We show that the spectrum of resonance fluorescence emitted on the $\\pi$ transitions shows a signature of spontaneously generated interference effects. The degree of interference in the fluorescence spectrum can be controlled by means of the external magnetic field, provided that the Land\\'e g-factors of the excited and the ground state doublet are different. For a suitably chosen magnetic field strength, the relative weight of the Rayleigh line can be completely suppressed, even for low intensities of the coherent driving field. The incoherent fluorescence spectrum emitted on the $\\pi$ transitions exhibits a very narrow peak whose width and weight depends on the magnetic field strength. We demonstrate that the spectrum of resonance fluorescence emitted on the $\\sigma$ transitions show an indirect signature of interference. A measurement of the relative peak heights in the spectrum from the $\\sigma$ transitions allows to determine the branching ratio of the spontaneous decay of each excited state into the $\\sigma$ channel.

Martin Kiffner; Joerg Evers; Christoph H. Keitel

2006-03-09T23:59:59.000Z

114

Drift-compensated adaptive filtering to improve speech intelligibility in presence of asynchronous interference  

Science Conference Proceedings (OSTI)

Conventional adaptive interference cancellation schemes can hardly improve speech intelligibility in the presence of interference whose source cannot be obtained synchronously with the corrupted target speech, because there are inevitable timing drifts ... Keywords: adaptive filtering, adaptive interference cancellation, least squares, timing drift

Heping Ding; David I. Havelock

2009-07-01T23:59:59.000Z

115

Multi-band OFDM UWB receiver with narrowband interference suppression  

E-Print Network (OSTI)

A multi band orthogonal frequency division multiplexing (MB-OFDM) compatible ultra wideband (UWB) receiver with narrowband interference (NBI) suppression capability is presented. The average transmit power of UWB system is limited to -41.3 dBm/MHz in order to not interfere existing narrowband systems. Moreover, it must operate even in the presence of unintentional radiation of FCC Class-B compatible devices. If this unintentional radiation resides in the UWB band, it can jam the communication. Since removing the interference in digital domain requires higher dynamic range of analog front-end than removing it in analog domain, a programmable analog notch filter is used to relax the receiver requirements in the presence of NBI. The baseband filter is placed before the variable gain amplifier (VGA) in order to reduce the signal swing at the VGA input. The frequency hopping period of MB-OFDM puts a lower limit on the settling time of the filter, which is inverse proportional to notch bandwidth. However, notch bandwidth should be low enough not to attenuate the adjacent OFDM tones. Since these requirements are contradictory, optimization is needed to maximize overall performance. Two different NBI suppression schemes are tested. In the first scheme, the notch filter is operating for all sub-bands. In the second scheme, the notch filter is turned on during the sub-band affected by NBI. Simulation results indicate that the UWB system with the first and the second suppression schemes can handle up to 6 dB and 14 dB more NBI power, respectively. The results of this work are not limited to MB-OFDM UWB system, and can be applied to other frequency hopping systems.

Kelleci, Burak

2007-12-01T23:59:59.000Z

116

Observation of Interference between Cerenkov and Synchrotron Radiation K.D. Bonin, K.T. McDonald, and D.P. Russell  

E-Print Network (OSTI)

Observation of Interference between Cerenkov and Synchrotron Radiation K.D. Bonin, K.T. Mc photons per electron passing through a helium-filled Cerenkov counter is observed to oscillate with an analysis which treats Cerenkov and synchrotron radiation as limiting mani- festations of a unified process

McDonald, Kirk

117

On the capacity of interference channels with one cooperating transmitter  

E-Print Network (OSTI)

Inner and outer bounds are established on the capacity region of two-sender, two-receiver interference channels where one transmitter knows both messages. The transmitter with extra knowledge is referred to as being cognitive. The inner bound is based on strategies that generalize prior work, and include rate-splitting, Gel’fand-Pinsker coding and cooperative transmission. A general outer bound is based on the Nair-El Gamal outer bound for broadcast channels. A simpler bound is presented for the case in which one of the decoders can decode both messages. The bounds are evaluated and compared for Gaussian channels.

Ivana Mari?; Andrea Goldsmith; Gerhard Kramer; Shlomo Shamai (Shitz)

2007-01-01T23:59:59.000Z

118

Interference-Aware Fair Rate Control in Wireless Sensor Networks  

E-Print Network (OSTI)

In a wireless sensor network of N nodes transmitting data to a single base station, possibly over multiple hops, what distributed mechanisms should be implemented in order to dynamically allocate fair and efficient transmission rates to each node? Our interference-aware fair rate control (IFRC) detects incipient congestion at a node by monitoring the average queue length, communicates congestion state to exactly the set of potential interferers using a novel low-overhead congestion sharing mechanism, and converges to a fair and efficient rate using an AIMD control law. We evaluate IFRC extensively on a 40-node wireless sensor network testbed. IFRC achieves a fair and efficient rate allocation that is within 20- 40% of the optimal fair rate allocation on some network topologies. Its rate adaptation mechanism is highly effective: we did not observe a single instance of queue overflow in our many experiments. Finally, IFRC can be extended easily to support situations where only a subset of the nodes transmit, where the network has multiple base stations, or where nodes are assigned different transmission weights.In a wireless sensor network of N nodes transmitting data to a single base station, possibly over multiple hops, what distributed mechanisms should be implemented in order to dynamically allocate fair and efficient transmission rates to each node? Our interference-aware fair rate control (IFRC) detects incipient congestion at a node by monitoring the average queue length, communicates congestion state to exactly the set of potential interferers using a novel low-overhead congestion sharing mechanism, and converges to a fair and efficient rate using an AIMD control law. We evaluate IFRC extensively on a 40-node wireless sensor network testbed. IFRC achieves a fair and efficient rate allocation that is within 20- 40% of the optimal fair rate allocation on some network topologies. Its rate adaptation mechanism is highly effective: we did not observe a single instance of queue overflow in our many experiments. Finally, IFRC can be extended easily to support situations where only a subset of the nodes transmit, where the network has multiple base stations, or where nodes are assigned different transmission weights.

Sumit Rangwala; Ramakrishna Gummadi; Ramesh Govindan; Konstantinos Psounis

2006-01-01T23:59:59.000Z

119

Interference effects in the reradiation of ultrashort electromagnetic pulses  

E-Print Network (OSTI)

Reradiation of a spatially non-uniform ultrashort electromagnetic pulse interacting with the linear chain of multielectron atoms is studied in the framework of sudden perturbation approximation. Angular distributions of the reradiation spectrum for arbitrary number of atoms are obtained. It is shown that interference effects for the photon radiation amplitudes lead to appearing of "diffraction" maximums. The obtained results can be extended to the case of two- and three-dimensional crystal lattices and atomic chains. The approach developed allows also to take into account thermal vibrations of the lattice atoms.

Matveev, V I

2012-01-01T23:59:59.000Z

120

Interference effects in the reradiation of ultrashort electromagnetic pulses  

E-Print Network (OSTI)

Reradiation of a spatially non-uniform ultrashort electromagnetic pulse interacting with the linear chain of multielectron atoms is studied in the framework of sudden perturbation approximation. Angular distributions of the reradiation spectrum for arbitrary number of atoms are obtained. It is shown that interference effects for the photon radiation amplitudes lead to appearing of "diffraction" maximums. The obtained results can be extended to the case of two- and three-dimensional crystal lattices and atomic chains. The approach developed allows also to take into account thermal vibrations of the lattice atoms.

V. I. Matveev; D. U. Matrasulov

2012-05-20T23:59:59.000Z

Note: This page contains sample records for the topic "analysis icp interference" 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
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121

Determination of 235U/238U Ratio on Urine by ICP-MS  

SciTech Connect

LLNL Internal Dosimetry Program - The new procedure satisfies the requirement to determine {sup 235}U/{sup 238}U ratio in bioassay urine samples. MDA - The L{sub C} and MDA{sub 95} for {sup 235}U are well below the required detection limit of 0.00035 {mu}g/L. Turn around time - Analysis of 10 samples plus 2 QCs can be completed in one work day (8 hours).

Collins, L; Gobaleza, A; Langston, R; Radev, R; Than, C; Wong, C; Wood-Zika, A

2011-10-19T23:59:59.000Z

122

Trace Elemental Variation in Dosidicus Gigas Statoliths Using LA-ICP-MS  

E-Print Network (OSTI)

Range expansion events of the Humboldt squid reveal our inadequate understanding of populations of this species. Despite recent hatching, reproductive, tagging, genetic and dietary studies of Dosidicus gigas, much speculation remains concerning geographic migration, stock assessment and habitat preferences. This study provides evidence that statolith trace elemental variations can be useful in distinguishing among geographic populations. Specimens were collected from the Galapagos Islands, southern California, and Washington State. A dissection method was recorded and published. By using laser ablation methods, discrete measurements of 10 elements were collected at 6 to 7 ablation sites covering embryonic, paralarval, juvenile and adult stages. Analysis of Variance revealed important ontogenic elemental variations among ablation locations. Multivariate Analysis of Variance, ordination techniques and discriminant function analysis with permutation testing were all utilized to compare and characterize the variations found in elemental concentrations. Significant ontogenic variations were found for 8 out of the 10 focus elements; this is the first report for 5 of these elements for this species. The geographic populations were effectively classified as distinct group for the first time using these methods. Elemental fingerprint signatures were found to be significantly different at multiple ontogenic growth regions of the statolith. Seattle and California paralarvae exhibited similar elemental signatures despite significant differences in those found in the embryonic core and juvenile regions of the statolith. These methods are a useful tool in providing stock assessment and can be improved for use in future population dynamics models.

Arbuckle, Nancy 1980-

2012-12-01T23:59:59.000Z

123

Accurate determination of Curium and Californium isotopic ratios by inductively coupled plasma quadrupole mass spectrometry (ICP-QMS) in 248Cm samples for transmutation studies  

Science Conference Proceedings (OSTI)

The French Atomic Energy Commission has carried out several experiments including the mini-INCA (INcineration of Actinides) project for the study of minor-actinide transmutation processes in high intensity thermal neutron fluxes, in view of proposing solutions to reduce the radiotoxicity of long-lived nuclear wastes. In this context, a Cm sample enriched in {sup 248}Cm ({approx}97 %) was irradiated in thermal neutron flux at the High Flux Reactor (HFR) of the Laue-Langevin Institute (ILL). This work describes a quadrupole ICP-MS (ICP-QMS) analytical procedure for precise and accurate isotopic composition determination of Cm before sample irradiation and of Cm and Cf after sample irradiation. The factors that affect the accuracy and reproducibility of isotopic ratio measurements by ICP-QMS, such as peak centre correction, detector dead time, mass bias, abundance sensitivity and hydrides formation, instrumental background, and memory blank were carefully evaluated and corrected. Uncertainties of the isotopic ratios, taking into account internal precision of isotope ratio measurements, peak tailing, and hydrides formations ranged from 0.3% to 1.3%. This uncertainties range is quite acceptable for the nuclear data to be used in transmutation studies.

Gourgiotis, A.; Isnard, H.; Aubert, M.; Dupont, E.; AlMahamid, I.; Cassette, P.; Panebianco, S.; Letourneau, A.; Chartier, F.; Tian, G.; Rao, L.; Lukens, W.

2011-02-01T23:59:59.000Z

124

On Interference Networks with Feedback and Delayed CSI  

E-Print Network (OSTI)

The degrees of freedom (DoF) region of the two-user MIMO interference channel (IC) is completely characterized in the presence of noiseless channel output feedback from each receiver to its respective transmitter and with the assumption of delayed channel state information (CSI) at the transmitters. It is shown that having output feedback and delayed CSI at the transmitters can strictly enlarge the DoF region when compared to the case in which only delayed CSI is available at the transmitters. The proposed coding schemes that achieve the corresponding DoF region with feedback and delayed CSI utilize both resources, i.e., feedback and delayed CSI in a non-trivial manner. Furthermore, cases are identified in which output feedback and delayed CSI alone are sufficient to achieve the DoF region achievable with perfect, instantaneous CSI. Also, the DoF region of the scalar 2x2x2 two-hop interference network is characterized. It is shown that the total DoF for this network collapses from 2 (with perfect, instantaneo...

Tandon, Ravi; Poor, H Vincent; Shamai, Shlomo

2011-01-01T23:59:59.000Z

125

S-P wave interference in the K+K- photoproduction on hydrogen  

E-Print Network (OSTI)

We have studied the partial wave interference effects to obtain a new information about the contribution of the S-wave to the cross section of the K+K- photoproduction on hydrogen. The K+K- photoproduction channel for the effective masses around 1 GeV is dominated by the phi(1020) resonance with only a small fraction of events coming from decays of scalar resonances f0(980) and a0(980). However, a careful analysis of angular distributions of the outgoing kaons shows that the S-wave adds an asymmetry to the angular distribution of kaons. A fairly precise estimation of the K+K- photoproduction cross section in the S-wave has been obtained.

L. Bibrzycki; L. Lesniak; A. P. Szczepaniak

2005-09-23T23:59:59.000Z

126

Realization and modeling of rf superconducting quantum interference device metamaterials  

E-Print Network (OSTI)

We have prepared meta-atoms based on radio frequency superconducting quantum interference devices (RF SQUIDs) and examined their tunability with dc magnetic field, rf current, and temperature. RF SQUIDs are superconducting split ring resonators in which the usual capacitance is supplemented with a Josephson junction, which introduces strong nonlinearity in the rf properties. We find excellent agreement between the data and a model which regards the Josephson junction as the resistively and capacitively-shunted junction. A magnetic field tunability of 80 THz/Gauss at 12 GHz is observed, a total tunability of 56$%$ is achieved, and a unique electromagnetically-induced transparency feature at intermediate excitation powers is demonstrated for the first time. An RF SQUID metamaterial is shown to have qualitatively the same behavior as a single RF SQUID with regards to DC flux and temperature tuning.

M. Trepanier; Daimeng Zhang; Oleg Mukhanov; Steven M. Anlage

2013-08-06T23:59:59.000Z

127

Radiofrequency amplifier based on a dc superconducting quantum interference device  

DOE Patents (OSTI)

A low noise radiofrequency amplifer, using a dc SQUID (superconducting quantum interference device) as the input amplifying element. The dc SQUID and an input coil are maintained at superconductivity temperatures in a superconducting shield, with the input coil inductively coupled to the superconducting ring of the dc SQUID. A radiofrequency signal from outside the shield is applied to the input coil, and an amplified radiofrequency signal is developed across the dc SQUID ring and transmitted to exteriorly of the shield. A power gain of 19.5 +- 0.5 dB has been achieved with a noise temperature of 1.0 +- 0.4 K at a frequency of 100 MHz.

Hilbert, C.; Martinis, J.M.; Clarke, J.

1984-04-27T23:59:59.000Z

128

Radiofrequency amplifier based on a dc superconducting quantum interference device  

DOE Patents (OSTI)

A low noise radiofrequency amplifier (10), using a dc SQUID (superconducting quantum interference device) as the input amplifying element. The dc SQUID (11) and an input coil (12) are maintained at superconductivity temperatures in a superconducting shield (13), with the input coil (12) inductively coupled to the superconducting ring (17) of the dc SQUID (11). A radiofrequency signal from outside the shield (13) is applied to the input coil (12), and an amplified radiofrequency signal is developed across the dc SQUID ring (17) and transmitted to exteriorly of the shield (13). A power gain of 19.5.+-.0.5 dB has been achieved with a noise temperature of 1.0.+-.0.4 K. at a frequency of 100 MHz.

Hilbert, Claude (Berkeley, CA); Martinis, John M. (Berkeley, CA); Clarke, John (Berkeley, CA)

1986-01-01T23:59:59.000Z

129

Large wind turbine siting handbook: television interference assessment. Final subcontract report  

DOE Green Energy (OSTI)

The rotating blades of a horizontal axis wind turbine can distort the video portion of a television signal and thereby interfere with TV reception in the vicinity of the machine. The nature of this interference is described and methods are presented for calculating the zone within which the interference may be severs. Specific results are given for the MOD-OA, MOD-1 and MOD-2 machines as functions of the TV frequency.

Senior, T B.A.; Sengupta, D L

1983-01-01T23:59:59.000Z

130

Radio-Frequency Interference (RFI) From Extra-High- Voltage (EHV) Transmission Lines  

E-Print Network (OSTI)

The subject of radio-frequency interference (RFI) generated by high-voltage transmission lines has long been of both academic and commercial interest because of concerns about

Patrick C. Crane

2010-01-01T23:59:59.000Z

131

Feedback improves the generalized degrees of freedom of the strong interference channel  

E-Print Network (OSTI)

wireless net- works within o(log(snr)) - the impact of relays, feedback, co- operation andoperation on the generalized degrees of freedom of interference and other wireless

Cadambe, Viveck R; Jafar, Syed A

2008-01-01T23:59:59.000Z

132

www.rnaworkbench.com: A new program for analyzing RNA interference  

Science Conference Proceedings (OSTI)

RNA interference (RNAi) has become an important tool to study and utilize gene silencing by introducing short interfering RNA (siRNA). In order to predict the most efficient siRNAs, a new software tool, RNA Workbench (RNAWB), has been designed and is ... Keywords: RNA interference, mRNA secondary structures, siRNA design, siRNA sequence rules

Radka Svobodová Va?eková; Ivan Bradá?; Martin Plchút; Michal Škrdla; Michael Wacenovsky; Helmuth Mahr; Georg Mayer; Herbert Tanner; Hermann Brugger; Josef Withalm; Peter Lederer; Heinrich Huber; Gerhard Gierlinger; Ronald Graf; Hakim Tafer; Ivo Hofacker; Peter Schuster; Martin Pol?ík

2008-04-01T23:59:59.000Z

133

An Experimental Investigation on the Wake Interference of Wind Turbines Sited Over Complex Terrains  

E-Print Network (OSTI)

1 An Experimental Investigation on the Wake Interference of Wind Turbines Sited Over Complex, 50011 An experimental study was conducted to investigate the interferences of wind turbines sited over conducted in a large wind tunnel with of wind turbine models sited over a flat terrain (baseline case

Hu, Hui

134

On the Symmetric Feedback Capacity of the K-user Cyclic Z-Interference Channel  

E-Print Network (OSTI)

The K-user cyclic Z-interference channel models a situation in which the kth transmitter causes interference only to the (k-1)th receiver in a cyclic manner, i.e., the first transmitter causes interference only to the Kth receiver. The impact of noiseless feedback on the capacity of this channel is studied by focusing on the Gaussian cyclic Z-interference channel. To this end, the symmetric feedback capacity of the linear shift deterministic cyclic Z-interference channel (LD-CZIC) is completely characterized for all interference regimes. Using insights from the linear deterministic channel model, the symmetric feedback capacity of the Gaussian cyclic Z-interference channel is characterized up to within a constant number of bits. As a byproduct of the constant gap result, the symmetric degrees of freedom with feedback for the Gaussian cyclic Z-interference channel are also characterized. These results highlight that the symmetric feedback capacities for both linear and Gaussian channel models are in general fu...

Tandon, Ravi; Poor, H Vincent

2011-01-01T23:59:59.000Z

135

Mitigating the effects of RF interference through RSSI-Based error recovery  

Science Conference Proceedings (OSTI)

On a common sensor node platform (Telos) we sample RSSI with high frequency during packet reception. We find that a packet collision (RF interference) often manifests as a measurable, temporal increase in RSSI. We investigate how the receiver ... Keywords: ARQ, interference mitigation, packet combining

Jan-Hinrich Hauer; Andreas Willig; Adam Wolisz

2010-02-01T23:59:59.000Z

136

Gaussian Z-Interference Channel with a Relay Link: Achievability Region and Asymptotic Sum Capacity  

E-Print Network (OSTI)

This paper studies a Gaussian Z-interference channel with a rate-limited digital relay link from one receiver to another. Achievable rate regions are derived based on a combination of Han-Kobayashi common-private information splitting technique and several different relay strategies including compress-and-forward and a partial decode-and-forward strategy, in which the interference is partially decoded then binned and forwarded through the digital link for subtraction at the other end. For the Gaussian Z-interference channel with a digital link from the interference-free receiver to the interfered receiver, the capacity region is established in the strong interference regime; an achievable rate region is established in the weak interference regime. In the weak interference regime, the partial decode-and-forward strategy is shown to be asymptotically sum-capacity achieving in the high signal-to-noise ratio and high interference-to-noise ratio limit. In this case, each relay bit asymptotically improves the sum c...

Zhou, Lei

2010-01-01T23:59:59.000Z

137

Quantum interference effect and electric field domain formation in quantum well infrared photodetectors  

E-Print Network (OSTI)

Quantum interference effect and electric field domain formation in quantum well infrared April 1995 An observation of quantum interference effect in photocurrent spectra of a weakly coupled bound-to-continuum multiple quantum well photodetector is reported. This effect persists even at high

138

Understanding interference experiments with polarized light through photon trajectories  

E-Print Network (OSTI)

Bohmian mechanics allows to visualize and understand the quantum-mechanical behavior of massive particles in terms of trajectories. As shown by Bialynicki-Birula, Electromagnetism also admits a hydrodynamical formulation when the existence of a wave function for photons (properly defined) is assumed. This formulation thus provides an alternative interpretation of optical phenomena in terms of photon trajectories, whose flow yields a pictorial view of the evolution of the electromagnetic energy density in configuration space. This trajectory-based theoretical framework is considered here to study and analyze the outcome from Young-type diffraction experiments within the context of the Arago-Fresnel laws. More specifically, photon trajectories in the region behind the two slits are obtained in the case where the slits are illuminated by a polarized monochromatic plane wave. Expressions to determine electromagnetic energy flow lines and photon trajectories within this scenario are provided, as well as a procedure to compute them in the particular case of gratings totally transparent inside the slits and completely absorbing outside them. As is shown, the electromagnetic energy flow lines obtained allow to monitor at each point of space the behavior of the electromagnetic energy flow and, therefore, to evaluate the effects caused on it by the presence (right behind each slit) of polarizers with the same or different polarization axes. This leads to a trajectory-based picture of the Arago-Fresnel laws for the interference of polarized light.

A. S. Sanz; M. Davidovic; M. Bozic; S. Miret-Artes

2009-07-15T23:59:59.000Z

139

Television interference measurements near the MOD-2 WT array at Goodnoe Hills, Washington  

DOE Green Energy (OSTI)

Electromagnetic interference to television reception caused by the MOD-2 wind turbine (WT) array at Goodnoe Hills, Washington, was studied by means of detailed measurements at a number of test sites in the vicinity of the WT array. The commercial television signals available in the area were used as the radio frequency sources during the measurements. The dynamic measurements indicated that varying amounts of TVI were produced at all sites and on some or all of the available TV channels; with the directional antenna in use, most of the backward region interference produced video distortion that was judged to be acceptable; at one test location about 1-1/2 miles from the WT array site, forward region interference was observed; when the blades of the WTs rotate in synchronism, they tend to increase the amplitude of the interference pulses, thereby producing more TVI effects; and when the blades do not rotate in synchronism, each WT produces interference effects individually.

Sengupta, D L; Senior, T B.A.; Ferris, J E

1983-11-01T23:59:59.000Z

140

Development of high through-put Sr isotope analysis for monitoring reservoir integrity for CO{sub 2} storage.  

SciTech Connect

Recent innovations in multi-collector ICP-mass spectrometry (MC-ICP-MS) have allowed for rapid and precise measurements of isotope ratios in geological samples. Naturally occurring Sr isotopes has the potential for use in Monitoring, Verification, and Accounting (MVA) associated with geologic CO2 storage. Sr isotopes can be useful for: Sensitive tracking of brine migration; Determining seal rock leakage; Studying fluid/rock reactions. We have optimized separation chemistry procedures that will allow operators to prepare samples for Sr isotope analysis off site using rapid, low cost methods.

Wall, Andy; Jain, Jinesh; Stewart, Brian; Capo, Rosemary; Hakala, Alexandra J.; Hammack, Richard; Guthrie, George

2012-01-01T23:59:59.000Z

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


141

Outage Performance of Dual-Hop AF Relay Channels with Co-Channel Interferences over Rayleigh Fading  

Science Conference Proceedings (OSTI)

This paper studies the outage performance of a dual-hop amplify-and-forward (AF) relay fading channel in an interference-limited environment. The relay and destination nodes are corrupted by multiple co-channel Rayleigh interferences. New exact closed-form ... Keywords: Amplify and-forward relay, Co-channel interference, Nonregenerative relay, Outage probability, Rayleigh fading

Aleksandra M. Cvetkovi?; Dejan N. Mili?; Aleksandar S. Cvetkovi?; Mihajlo Stefanovi?

2013-06-01T23:59:59.000Z

142

The Capacity Region of the Cognitive Z-interference Channel with One Noiseless Component  

E-Print Network (OSTI)

We study the discrete memoryless Z-interference channel (ZIC) where the transmitter of the pair that suffers from interference is cognitive. We first provide upper and lower bounds on the capacity of this channel. We then show that, when the channel of the transmitter-receiver pair that does not face interference is noiseless, the two bounds coincide and therefore yield the capacity region. The obtained results imply that, unlike in the Gaussian cognitive ZIC, in the considered channel superposition encoding at the non-cognitive transmitter as well as Gel’fand-Pinsker encoding at the cognitive transmitter are needed in order to minimize the impact of interference. As a byproduct of the obtained capacity region, we obtain the capacity result for a generalized Gel’fand-Pinsker problem.

Nan Liu; Ivana Mari?; Andrea J. Goldsmith; Shlomo Shamai (Shitz)

2008-01-01T23:59:59.000Z

143

Electron interference in mesoscopic devices in the presence of nonclassical electromagnetic fields  

E-Print Network (OSTI)

The interaction of mesoscopic interference devices with nonclassical electromagnetic fields is studied. The external quantum fields induce a phase factor on the electric charges. This phase factor, which is a generalization of the standard Aharonov-Bohm phase factor, is in the case of nonclassical electromagnetic fields a quantum mechanical operator. Its expectation value depends on the density matrix describing the nonclassical photons and determines the interference. Several examples are discussed, which show that the quantum noise of the nonclassical photons destroys slightly the electron interference fringes. An interesting application arises in the context of distant electron interference devices, irradiated with entangled photons. In this case the interfering electrons in the two devices become entangled. The same ideas are applied in the context of SQUID rings irradiated with nonclassical electromagnetic fields. It is shown that the statistics of the Cooper pairs tunneling through the Josephson junction depend on the statistics of the photons.

D. I. Tsomokos; C. C. Chong; A. Vourdas

2005-02-18T23:59:59.000Z

144

Optimal SISO and MIMO Spectral Efficiency to Minimize Hidden-Node Network Interference  

E-Print Network (OSTI)

In this letter, the optimal spectral efficiency for a given message size that minimizes the probability of causing disruptive interference for ad hoc wireless networks or cognitive radios is investigated. Implicitly, the ...

Lincoln Laboratory; Bliss, Daniel W.; Bliss, Daniel W.

145

Ultra-high precision scanning beam interference lithography and its application : spatial frequency multiplication  

E-Print Network (OSTI)

Scanning beam interference lithography (SBIL) is a technique developed at MIT in 2003. The SBIL system, referred to as the Nanoruler, could fabricate grating patterns with around ten-nanometer phase repeatability. There ...

Zhao, Yong, 1980-

2008-01-01T23:59:59.000Z

146

Three path interference using nuclear magnetic resonance: a test of the consistency of Born's rule  

E-Print Network (OSTI)

The Born rule is at the foundation of quantum mechanics and transforms our classical way of understanding probabilities by predicting that interference occurs between pairs of independent paths of a single object. One consequence of the Born rule is that three way (or three paths) quantum interference does not exist. In order to test the consistency of the Born rule, we examine detection probabilities in three path intereference using an ensemble of spin-1/2 quantum registers in liquid state nuclear magnetic resonance (LSNMR). As a measure of the consistency, we evaluate the ratio of three way interference to two way interference. Our experiment bounded the ratio to the order of $10^{-3} \\pm 10^{-3}$, and hence it is consistent with Born's rule.

Daniel K. Park; Osama Moussa; Raymond Laflamme

2012-07-10T23:59:59.000Z

147

KHALIL AMINE, PH  

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

Illinois. Career Activities & Highlights Inorganic Analysis: ICP, ICP-MS, Hg, TCLP, LECO Carbon & Sulfur o Support to PNNL TTQP for ICP: cation impurities and high...

148

Particle Generation by Laser Ablation in Support of Chemical Analysis of High Level Mixed Waste from Plutonium Production Operations  

Science Conference Proceedings (OSTI)

Investigate particles produced by laser irradiation and their analysis by Laser Ablation Inductively Coupled Plasma Mass Spectroscopy (LA/ICP-MS), with a view towards optimizing particle production for analysis of high level waste materials and waste glass. LA/ICP-MS has considerable potential to increase the safety and speed of analysis required for the remediation of high level wastes from cold war plutonium production operations. In some sample types, notably the sodium nitrate-based wastes at Hanford and elsewhere, chemical analysis using typical laser conditions depends strongly on the details of sample history composition in a complex fashion, rendering the results of analysis uncertain. Conversely, waste glass materials appear to be better behaved and require different strategies to optimize analysis.

J. Thomas Dickinson; Michael L. Alexander

2001-11-30T23:59:59.000Z

149

$\\rho-\\omega-$Interference in $J/\\psi-$Decays and $\\rho\\to \\pi^+\\pi^-\\pi^0$ Decay  

E-Print Network (OSTI)

We study $\\rho-\\omega-$interference by analyzing $J/\\psi\\to \\pi^+\\pi^-\\pi^0\\pi^0$. PDG-2002 data on $J/\\psi$ decays into $PP$ and $PV$ ($P$ denotes pseudoscalar mesons; $V$, vector mesons) are used to fit a generic model which describes the $J/\\psi$ decays. From the fits, we obtain anomalously large branching ratio $Br(\\rho^0\\to \\pi^+\\pi^-\\pi^0)\\sim 10^{-3}-10^{-2}$. A theoretical analysis for it is also provided, and the prediction is in good agreement with the anomalously large $Br(\\rho^0\\to \\pi^+\\pi^-\\pi^0)$. By the fit, we also get the $\\eta-\\eta'-$mixing angle $\\theta=-19.68^o\\pm 1.49^o$ and the constituent quark mass ratio $m_u/m_s\\sim 0.6$ which are all reasonable.

Fang, L; Huang, Y B; Yan, M L; Fang, Liu; Jin, Li; Huang, Yi-Bin; Yan, Mu-Lin

2004-01-01T23:59:59.000Z

150

ITEM 1984: Interference Technology Engineers' Master. Directory and design guide  

SciTech Connect

This publication is directed to EMC engineers and technicians to apprise them of the latest developments in the field; highly theoretical aspects of EMI are left to the professional society journals. It is distributed annually at no charge to qualified engineers, engineering managers, and purchasing agents prior to September. A copy may be obtained by a personally signed request on the organization letterhead, giving name and title and job function or duties; building number or mail station and zip code should be included. A separate abstract was prepared for each of three articles: (1) Electromagnetic Pulse (EMP); (2) EMP Susceptibility Analysis; and (3) An Evaluation of ANSI C95.1-1982.

Goldblum, R.D. (ed.)

1984-01-01T23:59:59.000Z

151

Manifestation of a nonclassical Berry phase of an electromagnetic field in atomic Ramsey interference  

E-Print Network (OSTI)

The Berry phase acquired by an electromagnetic field undergoing an adiabatic and cyclic evolution in phase space is a purely quantum-mechanical effect of the field. However, this phase is usually accompanied by a dynamical contribution and cannot be manifested in any light-beam interference experiment because it is independent of the field state. We here show that such a phase can be produced using an atom coupled to a quantized field and driven by a slowly changing classical field, and it is manifested in atomic Ramsey interference oscillations. We also show how this effect may be applied to one-step implementation of multiqubit geometric phase gates, which is impossible by previous geometric methods. The effects of dissipation and fluctuations in the parameters of the pump field on the Berry phase and visibility of the Ramsey interference fringes are analyzed.

Shi-Biao Zheng

2012-03-02T23:59:59.000Z

152

Manifestation of a nonclassical Berry phase of an electromagnetic field in atomic Ramsey interference  

E-Print Network (OSTI)

The Berry phase acquired by an electromagnetic field undergoing an adiabatic and cyclic evolution in phase space is a purely quantum-mechanical effect of the field. However, this phase is usually accompanied by a dynamical contribution and cannot be manifested in any light-beam interference experiment because it is independent of the field state. We here show that such a phase can be produced using an atom coupled to a quantized field and driven by a slowly changing classical field, and it is manifested in atomic Ramsey interference oscillations. We also show how this effect may be applied to one-step implementation of multiqubit geometric phase gates, which is impossible by previous geometric methods. The effects of dissipation and fluctuations in the parameters of the pump field on the Berry phase and visibility of the Ramsey interference fringes are analyzed.

Zheng, Shi-Biao

2012-01-01T23:59:59.000Z

153

Electronic State Interferences in Resonant X-Ray Emission after K-Shell Excitation in HCl  

SciTech Connect

We have measured a series of high-resolution x-ray spectra emitted upon resonant photoexcitation of HCl. The photon energy was tuned across the dissociative 1s{yields}6{sigma}* resonance and the Rydberg states converging to the Cl 1s{sup -1} threshold, and inelastic photon scattering was observed in the region of KL emission lines. Excellent agreement is found between fully ab initio calculated and measured spectra if interferences between different excitation-emission paths are taken into account. The effect of electronic state interferences is enhanced due to dynamical broadening of the 6{sigma}* resonance in HCl.

Kavcic, M.; Zitnik, M.; Bucar, K.; Mihelic, A.; Carniato, S.; Journel, L.; Guillemin, R.; Simon, M. [Jozef Stefan Institute, Post Office Box 3000, SI-1001 Ljubljana (Slovenia); UPMC Univ Paris 06, UMR 7614, Laboratoire de Chimie Physique Matiere et Rayonnement, F-75005 Paris (France); CNRS, UMR 7614, Laboratoire de Chimie Physique Matiere et Rayonnement, F-75005 Paris (France)

2010-09-10T23:59:59.000Z

154

Two-photon interference of photon pairs created in photonic crystal fibers  

E-Print Network (OSTI)

We investigate a method to produce photon pairs by four-wave mixing in photonic crystal fibers (PCFs). By controlling the wavelength of the pump light, which determines the phase matching condition for four-wave mixing, we can obtain a broader spectrum of photon pairs than undesired Raman-scattered photons. We observe two-photon interference of photon pairs from a PCF with the help of an unbalanced Mach-Zehnder interferometer. Two-photon interference fringes with 83% visibility, which exceeds the classical limit of 50%, are obtained.

Toshihiro Nakanishi; Kazuo Sakemi; Hirokazu Kobayashi; Kazuhiko Sugiyama; Masao Kitano

2009-02-01T23:59:59.000Z

155

Ground state cooling of a nanomechanical resonator in the weak-confinement regime via quantum interference  

E-Print Network (OSTI)

Ground state cooling of a nanomechanical resonator coupled to a superconducting flux qubit is discussed. We show that by inducing quantum interference to cancel detrimental carrier excitations, ground state cooling becomes possible in the weak-confinement or non-resolved regime. The qubit is modelled as a three-level system in lambda configuration, and the driving fluxes are applied such that the qubit absorption spectrum exhibits electromagnetically induced transparency, thereby cancelling the unwanted carrier excitation. As our interference-based scheme allows to apply strong cooling fields, fast and efficient cooling can be achieved.

Xia, K

2009-01-01T23:59:59.000Z

156

Ground state cooling of a nanomechanical resonator in the weak-confinement regime via quantum interference  

E-Print Network (OSTI)

Ground state cooling of a nanomechanical resonator coupled to a superconducting flux qubit is discussed. We show that by inducing quantum interference to cancel detrimental carrier excitations, ground state cooling becomes possible in the weak-confinement or non-resolved regime. The qubit is modelled as a three-level system in lambda configuration, and the driving fluxes are applied such that the qubit absorption spectrum exhibits electromagnetically induced transparency, thereby cancelling the unwanted carrier excitation. As our interference-based scheme allows to apply strong cooling fields, fast and efficient cooling can be achieved.

K. Xia; J. Evers

2009-02-23T23:59:59.000Z

157

Analysis  

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

Analysis Analysis of Short-Bunch Production with the APS Booster and a Bunch Compressor Michael Borland, AOD/OAG ∗ August 8, 2003 1 Abstract There is significant interest among x-ray scientists in short-pulse x-rays. The x-rays from the APS ring, although very bright, are produced by an electron bunch with an rms length of more than 30 ps. Typically, it is only a linear accelerator that can produce a very short bunch. An idea was brought to my attention by Glenn Decker that might allow us to produce a short bunch using the APS booster. This idea involves extracting the beam from the booster at 3 to 4 GeV, while it is still relatively short, then compressing it with a magnetic bunch compressor. In this note, we present a preliminary analysis of this idea, along with the related idea of using a nonequilibrium beam from the APS photoinjector. 2 Background We will begin with an examination of the ideal result

158

Interference of wedge-shaped protrusions on the faces of a Griffith crack in biaxial stress. Final report  

SciTech Connect

An initial investigation of the influence of protrusion interference on the fracture toughness required to prevent unstable propagation of a Griffith crack in a brittle material is described. The interference is caused by relative shear displacement of the crack faces when subjected to remote biaxial stress with neither principal stress parallel to the crack. It is shown that for room temperature cracks smaller than about one centimeter in silicon carbide, or about one millimeter in silicon nitride, the presence of interference changes the fracture stress. A mathematical model based on linear elasticity solutions and including multiple interference sites at arbitrarily specified positions on the crack is presented. Computations of the change in required fracture toughness and its dependence on wedge geometry (size and vertex angle), applied stresses (orientation and magnitude), and location of the interference site are discussed. Results indicate that a single interference site has only a slight effect on required toughness. However, the influence of interference increases monotonically with the number of interference sites. The two-dimensional model described herein is not accurate when the interference sites are closely spaced.

Boulet, J.A.M. [Tennessee Univ., Knoxville, TN (United States)

1992-04-01T23:59:59.000Z

159

Minimizing interference of a wireless ad-hoc network in a plane  

Science Conference Proceedings (OSTI)

We consider the problem of topology control of a wireless ad-hoc network on a given set of points in the plane, where we aim to minimize the maximum interference by assigning a suitable transmission radius to each point. By using computational geometric ...

Magnús M. Halldórsson; Takeshi Tokuyama

2006-07-01T23:59:59.000Z

160

Key elements for a sensitive 77 K direct current superconducting quantum interference device magnetometer  

E-Print Network (OSTI)

B is the applied field and sq is the flux coupled to the SQUID. Aeff is determined by the design determined by the smaller inductance, but flux linking the pickup loop induces a current which couples fluxKey elements for a sensitive 77 K direct current superconducting quantum interference device

Lee, Luke P.

Note: This page contains sample records for the topic "analysis icp interference" 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

QCD and Electroweak Interference in Higgs production by Gauge Boson Fusion  

E-Print Network (OSTI)

We explicitly calculate the contribution to Higgs production at the LHC from the interference between gluon-gluon and Weak Vector Boson fusion, and compare it to the pure QCD and pure Electro-weak result. While the effect is small at tree level, we speculate it will be significantly enhanced by loop effects.

Jeppe R. Andersen; Jennifer M. Smillie

2006-11-21T23:59:59.000Z

162

Cooperative Interference Mitigation for Heterogeneous Multi-hop MIMO Wireless Networks  

E-Print Network (OSTI)

-technology interference mitigation (CIM). CIM exploits recent advancements in physical layer technologies different wireless technologies. This paper offers a thorough study of the CIM paradigm for unplanned multi, and then establish a tractable model to accurately characterize the CIM behaviors of both networks. We develop a bi

Li, Ming

163

Interference-aware cooperative QoS routing in multi-hop wireless networks  

Science Conference Proceedings (OSTI)

Cooperative communication is a new physical technology, which has the potential to improve QoS support for multi-hop wireless network. Existing works did not consider the interference effect among links while designing cooperative QoS routing. To overcome ...

Wei Feng, Jian Liu, Jiannong Cao, Liang Yang, Qin Xin

2013-08-01T23:59:59.000Z

164

Performance evaluation of spatially multiplexed MIMO systems with subset antenna transmission in interference limited environments  

Science Conference Proceedings (OSTI)

Transmit antenna selection in spatially multiplexed multiple-input multiple-output (MIMO) systems is a low complexity low-rate feedback technique, which involves transmission of a reduced number of streams from the maximum possible to improve the error ... Keywords: Co-channel interference, MIMO systems, Orthogonal frequency division multiplexing, Transmit antenna selection

Shreeram Sigdel; Witold A. Krzymie?

2007-10-01T23:59:59.000Z

165

Performance of Non-Polarized Noise Modulated Communications System in the Presence of Interference  

Science Conference Proceedings (OSTI)

The noise modulated non-polarized communication system, developed by us recently, is an ultra-wideband transmitted-reference system designed for secure interferencefree communications. By using ultra-wideband random noise to spread the signal and by ... Keywords: Interference, Noise modulation, Spread spectrum communication, Transmitted reference, Ultrawideband

Jack Chuang; Ram M. Narayanan

2012-08-01T23:59:59.000Z

166

Guidelines for Electromagnetic Interference Testing of Power Plant Equipment: Revision 2 to TR-102323  

Science Conference Proceedings (OSTI)

This revision to the original guide, which received U.S. Nuclear Regulatory Commission (NRC) approval in a Safety Evaluation Report (SER) in April 1996, reduces excessive conservatism in plant equipment emission and susceptibility testing limits. It identifies emissions sources in nuclear power plants, recommends susceptibility and emissions standards, and details design and layout practices for minimizing susceptibility to electromagnetic interference (EMI).

2000-12-01T23:59:59.000Z

167

Constructive and destructive interferences of Stark resonances induced by an ac field in atomic hydrogen  

SciTech Connect

We study theoretically the problem of a hydrogen atom exposed both to a static dc field and to a monochromatic ac field. We show that, in the presence of an ac field, a constructive (or destructive) interference occurs between the excited (Rydberg) Stark resonance states and the hydrogenic ground state. This mechanism is responsible for dramatic enhancement (or suppression) of the corresponding photoionization rates.

Pawlak, Mariusz; Bylicki, Miroslaw; Moiseyev, Nimrod; Sindelka, Milan [Instytut Fizyki, Uniwersytet Mikolaja Kopernika, ul. GrudziaPdzka 5, PL-87-100 Torun (Poland); Schulich Faculty of Chemistry, Department of Physics and Minerva Center of Nonlinear Physics of Complex Systems, Technion-Israel Institute of Technology, Haifa, IL-32000 (Israel)

2010-12-15T23:59:59.000Z

168

A Cell Based Dynamic Spectrum Management Scheme with Interference Mitigation for Cognitive Networks  

Science Conference Proceedings (OSTI)

Future wireless systems are expected to be characterized by the coexistence of different radio access technologies (RATs) resulting in complex heterogeneous wireless environments. In parallel with this, the tremendous demand for spectrum has ... Keywords: Bargaining patience, Cognitive networks, Dynamic spectrum management, Game theory, Inter-system interference, Profit

Vanbien Le; Zhiyong Feng; Didier Bourse; Ping Zhang

2009-04-01T23:59:59.000Z

169

Auction-Based Throughput Maximization in Cognitive Radio Networks Under Interference Constraint  

Science Conference Proceedings (OSTI)

Cognitive radio is an emerging technique to improve the utilization of radio frequency spectrum in wireless communication networks. That is, spectrum efficiency can be increased significantly by giving opportunistic access of the frequency bands to a ... Keywords: Auction, Channel assignment, Cognitive radio, Graph theory, Interference constraint, OSI cross layer applications

Hakan Murat Karaca, Tolga Kurt, Salih Zafer Dicle, Emin Anarim

2013-09-01T23:59:59.000Z

170

Determining Full Three-Dimensional Orientation of Single Anisotropic Nanoparticles by Differential Interference Contrast Microscopy  

SciTech Connect

Keeping track: By combining differential interference contrast (DIC) image pattern recognition with DIC polarization anisotropy, the exact full three-dimensional angular information of individual tilted gold nanorods positioned in the focal plane of the objective lens can be readily determined. The angular rotational modes and kinetics of individual in-focus gold nanorods can thus be resolved dynamically.

Xiao, Lehu; Ha, Ji Won; Wei, Lin; Wang, Gufeng; Fang, Ning

2012-06-26T23:59:59.000Z

171

Origination of nano- and microstructures on large areas by interference lithography  

Science Conference Proceedings (OSTI)

Many markets require large area surface relief micro- and nanostructures. Important examples are light management structures for display applications or the radiation power management in solar systems. Structuring techniques with both up-scaling and ... Keywords: Display technology, Interference lithography, Nanoimprint lithography, Replication, Solar cells

Andreas J. Wolf; Hubert Hauser; Volker KüBler; Christian Walk; Oliver HöHn; Benedikt BläSi

2012-10-01T23:59:59.000Z

172

Repetitive Transcranial Magnetic Stimulation to the Primary Motor Cortex Interferes with  

E-Print Network (OSTI)

Repetitive Transcranial Magnetic Stimulation to the Primary Motor Cortex Interferes with Motor- cranial magnetic stimulation (rTMS) to test the idea that this ``motor learning by observing'' is based representations of novel motor skills can be ac- quired through visual observation. We used repetitive trans

Miall, Chris

173

Quantifying the channel quality for interference-aware wireless sensor networks  

Science Conference Proceedings (OSTI)

Reliability of communications is key to expand application domains for sensor networks. Since Wireless Sensor Networks (WSN) operate in the license-free Industrial Scientific and Medical (ISM) bands and hence share the spectrum with other wireless technologies, ... Keywords: ISM bands, channel quality, dynamic resource adaptation, interference, wireless sensor networks

Claro Noda; Shashi Prabh; Mário Alves; Carlo Alberto Boano; Thiemo Voigt

2011-12-01T23:59:59.000Z

174

Gluon-gluon contributions to W+ W- production and Higgs interference effects  

Science Conference Proceedings (OSTI)

In this paper we complete our re-assessment of the production of W boson pairs at the LHC, by calculating analytic results for the gg {yields} W{sup +}W{sup -} {yields} {nu}{ell}{sup +}{ell}{sup -}{bar {nu}} process including the effect of massive quarks circulating in the loop. Together with the one-loop amplitudes containing the first two generations of massless quarks propagating in the loop, these diagrams can give a significant contribution with a large flux of gluons. One of the component parts of this calculation is the production of a standard model Higgs boson, gg {yields} H and its subsequent decay, H {yields} W{sup +}({yields} {nu}{ell}{sup +})W{sup -}({yields} {ell}{sup -}{bar {nu}}). We will quantify the importance of the interference between the Higgs boson production process and the gluon-induced continuum production in the context of searches for the Higgs boson at the Tevatron and the LHC. For instance, for m{sub H} < 140 GeV the effect of the interference typically results in around a 10% reduction in the expected number of Higgs signal events. The majority of this interference is due to non-resonant contributions. Therefore cuts on the transverse mass such as those currently used by the ATLAS collaboration reduce the destructive interference to about a 1% effect. We advocate that a cut on the maximum transverse mass be used in future Higgs searches in this channel.

Campbell, John M.; Ellis, R.Keith; Williams, Ciaran

2011-07-01T23:59:59.000Z

175

Interference mitigation technique for coexistence of pulse-based UWB and OFDM  

Science Conference Proceedings (OSTI)

Ultra-wideband (UWB) is a useful radio technique for sharing frequency bands between radio systems. It uses very short pulses to spread spectrum. However, there is a potential for interference between systems using the same frequency bands at close range. ...

Kohei Ohno; Tetsushi Ikegami

2008-01-01T23:59:59.000Z

176

ON THE USAGE OF ANTENNAS IN MIMO AND MISO INTERFERENCE CHANNELS Mariam Kaynia  

E-Print Network (OSTI)

ON THE USAGE OF ANTENNAS IN MIMO AND MISO INTERFERENCE CHANNELS Mariam Kaynia , Andrea J. Goldsmith. of Science and Technology Dept. of Electrical Engineering, Stanford University, Stanford Mobile and small), we derive upper and lower bounds to both our per- formance metrics. Moreover, the particular

Gesbert, David

177

Standard test method for determination of impurities in plutonium: acid dissolution, ion exchange matrix separation, and inductively coupled plasma-atomic emission spectroscopic (ICP/AES) analysis  

E-Print Network (OSTI)

1.1 This specification covers blended uranium trioxide (UO3), U3O8, or mixtures of the two, powders that are intended for conversion into a sinterable uranium dioxide (UO2) powder by means of a direct reduction process. The UO2 powder product of the reduction process must meet the requirements of Specification C 753 and be suitable for subsequent UO2 pellet fabrication by pressing and sintering methods. This specification applies to uranium oxides with a 235U enrichment less than 5 %. 1.2 This specification includes chemical, physical, and test method requirements for uranium oxide powders as they relate to the suitability of the powder for storage, transportation, and direct reduction to UO2 powder. This specification is applicable to uranium oxide powders for such use from any source. 1.3 The scope of this specification does not comprehensively cover all provisions for preventing criticality accidents, for health and safety, or for shipping. Observance of this specification does not relieve the user of th...

American Society for Testing and Materials. Philadelphia

2003-01-01T23:59:59.000Z

178

Iterative Joint and Interference Nulling/ Cancellation Decoding Algorithms for Multi-Group Space Time Trellis Coded Systems  

E-Print Network (OSTI)

Iterative Joint and Interference Nulling/ Cancellation Decoding Algorithms for Multi-Group Space will focus on joint detection and interference nulling/ cancellation algorithms. Key Words: Multi-Group STTCs can be classified under two categories. The first is based on joint detection/ decoding. We started

Al-Ghadhban, Samir

179

RFID Interference  

Science Conference Proceedings (OSTI)

... GHz. Active tags contain a power source (eg, battery) and permit higher read ranges and/or lower reader power. Passive ...

2010-10-19T23:59:59.000Z

180

Fano interference controlled resonance profiles in photovoltaics and photo-detection  

E-Print Network (OSTI)

In this work we report a quantum interference mediated control of the resonance profiles in a generic three-level system and investigate its effect on key quantum interference (QI) phenomena. Namely in a three level configuration with doublets in the ground or excited states, we show control over enhancement and suppression of the emission (absorption) profiles. This is achieved by manipulation of the strength of QI and the energy spacing of the doublets. We analyze the application of such QI induced control of the resonance profile in photo-detection, and photovoltaics in agreement with the results of Scully [M.O.Scully, Phys. Rev. Lett. 104, 207701 (2010)] and disagreement with Kirk [A.P.Kirk, Phys. Rev. Lett. 106, 048703 (2011)].

Dorfman, Konstantin E; Das, Sumanta

2011-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "analysis icp interference" 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

Sum-Rate Optimal Power Policies for Energy Harvesting Transmitters in an Interference Channel  

E-Print Network (OSTI)

This paper considers a two-user Gaussian interference channel with energy harvesting transmitters. Different than conventional battery powered wireless nodes, energy harvesting transmitters have to adapt transmission to availability of energy at a particular instant. In this setting, the optimal power allocation problem to maximize sum throughput within a given deadline is formulated. The convergence of the proposed iterative coordinate descent method for the problem is proved and the short-term throughput maximizing offline power allocation policy is found. Examples for interference regions with known sum capacities are given with directional water-filling interpretations when possible. Next, stochastic data arrivals are addressed. Finally online and/or distributed near-optimal policies are proposed. Performance of the proposed algorithms are demonstrated through simulations.

Tutuncuoglu, Kaya

2011-01-01T23:59:59.000Z

182

Understanding quantum polarized-light interference experiments through electromagnetic energy flow lines  

E-Print Network (OSTI)

General expressions to obtain the electromagnetic energy flow lines behind interference gratings are derived in the case where the incident light consists of a polarized monochromatic plane wave. These flow lines show how the electromagnetic energy redistributes in space (behind the grating) until the Fraunhofer regime is reached, thus providing an interpretation based on photon paths for the physics underlying interference phenomena with light. Within this interpretation, one finds that the outcome from a Young's experiment is related in a simple manner to how the electromagnetic energy flux is influenced by the experimental setup, specifically, how the presence of polarizers on each slit and the boundaries imposed by having one or both slits open affect at each time the electromagnetic energy flow, which is directly linked to the Arago-Fresnel laws.

Sanz, A S; Bozic, M; Miret-Artés, S

2009-01-01T23:59:59.000Z

183

Resonance--Continuum Interference in Light Higgs Boson Production at a Photon Collider  

SciTech Connect

We study the effect of interference between the Standard Model Higgs boson resonance and the continuum background in the process {gamma}{gamma} {yields} H {yields} b{bar b} at a photon collider. Taking into account virtual gluon exchange between the final-state quarks, we calculate the leading corrections to the height of the resonance for the case of a light (m{sub H} < 160 GeV) Higgs boson. We find that the interference is destructive and around 0.1-0.2% of the peak height, depending on the mass of the Higgs and the scattering angle. This suppression is smaller by an order of magnitude than the anticipated experimental accuracy at a photon collider. However, the fractional suppression can be significantly larger if the Higgs coupling to b quarks is increased by physics beyond the Standard Model.

Dixon, Lance J.; Sofianatos, Yorgos; /SLAC /Stanford U., Phys. Dept.

2009-01-06T23:59:59.000Z

184

Classical two-split interference effects in double photoionization of molecular hydrogen at high energies  

DOE Green Energy (OSTI)

The authors report a thorough theoretical study of one photon double ionization of H{sub 2}. They suggest that interference effects reported in one photon ionization will be reproducible in the case of double ionization when one of the photons carriers most of the available energy and the other electron is not observed. These calculations reproduce recent double photoionization experiments of H{sub 2}.

Horner, Daniel A [Los Alamos National Laboratory; Miyabe, S [LBNL; Rescigno, T N [LBNL; Mccurdy, C W [LBNL; Morales, F [MADRID, SPAIN; Martin, F [MADRID, SPAIN

2009-01-01T23:59:59.000Z

185

Explanation of observed interference patterns in the differential cross section for double photoionization of H2  

DOE Green Energy (OSTI)

We present the results of numerical calculations on the single photon double photoionization of H{sub 2} for energies between 130 eV and 240 eV. We find that our results are in excellent agreement with experimental observations. However, our interpretation of the observed interference pattern at these energies is that it is due to mixing of parallel and perpendicular components through circularly polarized light rather than due to classical double slit diffraction.

Horner, Daniel A [Los Alamos National Laboratory; Miyabe, Shungo [UC-DAVIS; Morales, Felipe [UNIV AUTONOMA DE MADRID; Martin, Fernando [UNIV AUTONOMA DE MADRID; Rescigno, Thomas N [LBNL; Mccurdy, C William [LBNL

2009-01-01T23:59:59.000Z

186

Guidelines for Electromagnetic Interference Testing of Power Plant Equipment: Revision 3 to TR-102323  

Science Conference Proceedings (OSTI)

To continue meeting safety and reliability requirements while controlling costs, operators of nuclear power plants must be able to replace and upgrade equipment in a cost-effective manner. One issue that has been problematic for new plant equipment and especially for digital instrumentation and control (I&C) systems in recent years is electromagnetic compatibility (EMC). The EMC issue usually involves testing to show that critical equipment will not be adversely affected by electromagnetic interference (...

2004-11-30T23:59:59.000Z

187

Two-electron time-delay interference in atomic double ionization by attosecond pulses  

SciTech Connect

A two-color two-photon atomic double ionization experiment using subfemtosecond UV pulses can be designed such that the sequential two-color process dominates and one electron is ejected by each pulse. Nonetheless, ab initio calculations show that, for sufficiently short pulses, a prominent interference pattern in the joint energy distribution of the sequentially ejected electrons can be observed that is due to their indistinguishability and the exchange symmetry of the wave function.

Rescigno, Thomas N

2009-10-04T23:59:59.000Z

188

Cooper minima and Young-type interferences in the photoionization of H{sub 2}{sup +}  

SciTech Connect

We present a detailed study of the partial and total cross sections for photon-induced electron emission from H{sub 2}{sup +}. By comparing the results employing exact and approximate, bounded and continuum wave functions, for one- and two-center basis functions, we find the origin and position of the Cooper-like minima in the partial cross sections and their relationship with the Young-type interference pattern.

Della Picca, R. [CONICET and Centro Atomico Bariloche, Comision Nacional de Energia Atomica, Avda E. Bustillo 9500, 8400 Bariloche (Argentina); UPMC Univ. Paris 6, UMR 7614, Laboratoire de Chimie Physique-Matiere et Rayonnement, 11 rue Pierre et Marie Curie, F-75231 Paris Cedex 05 (France); Fainstein, P. D. [CONICET and Centro Atomico Bariloche, Comision Nacional de Energia Atomica, Avda E. Bustillo 9500, 8400 Bariloche (Argentina); Dubois, A. [UPMC Univ. Paris 6, UMR 7614, Laboratoire de Chimie Physique-Matiere et Rayonnement, 11 rue Pierre et Marie Curie, F-75231 Paris Cedex 05 (France); CNRS UMR 7614, LCPMR, F-75005 Paris (France)

2011-09-15T23:59:59.000Z

189

A software memory partition approach for eliminating bank-level interference in multicore systems  

E-Print Network (OSTI)

Main memory system is a shared resource in modern multicore machines, resulting in serious interference, which causes performance degradation in terms of throughput slowdown and unfairness. Numerous new memory scheduling algorithms have been proposed to address the interference problem. However, these algorithms usually employ complex scheduling logic and need hardware modification to memory controllers, as a result, industrial venders seem to have some hesitation in adopting them. This paper presents a practical software approach to effectively eliminate the interference without hardware modification. The key idea is to modify the OS memory management subsystem to adopt a page-coloring based bank-level partition mechanism (BPM), which allocates specific DRAM banks to specific cores (threads). By using BPM, memory controllers can passively schedule memory requests in a core-cluster (or thread-cluster) way. We implement BPM in Linux 2.6.32.15 kernel and evaluate BPM on 4-core and 8-core real machines by running randomly generated 20 multi-programmed workloads (each contains 4/8 benchmarks) and multi-threaded benchmark. Experimental results show that BPM can improve the overall system throughput by 4.7% on average (up to 8.6%), and reduce the maximum slowdown by 4.5 % on average (up to 15.8%). Moreover, BPM also saves 5.2% of the energy consumption of memory system.

Lei Liu; Zehan Cui; Mingjie Xing; Yungang Bao; Mingyu Chen; Chengyong Wu

2012-01-01T23:59:59.000Z

190

Measurements of television interference caused by a vertical-axis wind machine. Final subcontract report  

DOE Green Energy (OSTI)

The electromagnetic interference to television reception caused by the 17 m Darreius at Albuquerque, NM, has been studied by carrying out measurements at a number of sites in the vicinity of the VAWT. The rf sources used were the commercial vhf and uhf TV signals available in the area. Ambient field-strength measurements showed that the signals on all TV channels except one were strong, and provided good reception at all test sites. With the antenna (properly) oriented for maximum direct signal, unacceptable interference was observed on some channels at sites out to 33 m from the WT in the forward and backward regions. With the antenna beam directed at the WT, interference varying from slight to violent were observed at all sites on some or all TV channels. A simple theoretical model has been developed for analyzing the TVI produced by a VAWT like the Darrieus. Using the model in conjunction with measured data, an approximate expression for the equivalent scattering area A of the Darrieus has been developed. It is found that A is wavelength (lambda) dependent and varies as lambda/sup 1/2/.

Sengupta, D L; Senior, T B.A.; Ferris, J E

1983-01-01T23:59:59.000Z

191

Multielement analysis of geologic materials by inductively coupled plasma-atomic emission spectroscopy  

DOE Green Energy (OSTI)

Atomic emission spectroscopy using an inductively coupled plasma (ICP) source permits the rapid acquisition of multielement geochemical data from a wide variety of geologic materials. Rocks or other solid samples are taken into solution with a four acid digestion procedure and introduced directly into the plasma; fluid samples are acidified or analyzed directly. The entire process is computer-controlled, fully-automated, and requires less than five minutes per sample for quantitative determination of 37 elements. The procedures and instrumentation employed at the ESL for multielement ICP analysis of geologic materials are described and these are intended as a guide for evaluating analytic results reported from this laboratory. The quality of geochemical data can be characterized by precision, limits of quantitative determination, and accuracy. Precision values are a measure of the repeatability of analyses. In general, major element and analyses have precision of better than 5% and trace elements of better than 10% of the amount present. (MHR)

Christensen, O.D.; Kroneman, R.L.; Capuano, R.M.

1980-03-01T23:59:59.000Z

192

Interference between work and home: an empirical study of the antecedents, outcomes, and coping strategies amongst public sector employees.  

E-Print Network (OSTI)

??Work-home interference has been receiving increasing attention in the organizational behaviour literature. It is defined as a form of inter-role conflic t in which the… (more)

Beauregard, Alexandra

2004-01-01T23:59:59.000Z

193

Anomalous Quantum Interference Induced by Landau-Zener Transitions in a Strongly Driven rf-SQUID Qubit  

E-Print Network (OSTI)

We irradiated an rf-SQUID qubit with large-amplitude and high frequency electromagnetic field. Population transitions between macroscopic distinctive quantum states due to Landau-Zener transitions at energy-level avoided crossings were observed. The qubit population on the excited states as a function of flux detuning and microwave power exhibits interference patterns. Some novel features are found in the interference and a model based on rate equations can well address the features.

Wang, Yiwen; Wen, Xueda; Pan, Cheng; Sun, Guozhu; Chen, Jian; Kang, Lin; Xu, Weiwei; Yu, Yang; Wu, Peiheng

2009-01-01T23:59:59.000Z

194

Atomic-phase interference devices based on ring-shaped Bose-Einstein condensates: Two ring case  

E-Print Network (OSTI)

We theoretically investigate the ground-state properties and quantum dynamics of a pair of adjacent ring-shaped Bose-Einstein condensates that are coupled via tunneling. This device, which is the analogue of a symmetric superconducting quantum interference device, is the simplest version of what we term an Atomic-Phase Interference Device (APHID). The two-ring APHID is shown to be sensitive to rotation.

B. P. Anderson; K. Dholakia; E. M. Wright

2002-09-10T23:59:59.000Z

195

Rapid Separation Methods to Characterize Actinides and Metallic Impurities in Plutonium Scrap Materials at SRS  

SciTech Connect

The Nuclear Materials Stabilization and Storage Division at SRS plans to stabilize selected plutonium scrap residue materials for long term storage by dissolution processing and plans to stabilize other plutonium vault materials via high-temperature furnace processing. To support these nuclear material stabilization activities, the SRS Analytical Laboratories Department (ALD) will provide characterization of materials required prior to the dissolution or the high-firing of these materials. Lab renovations to install new analytical instrumentation are underway to support these activities that include glove boxes with simulated-process dissolution and high- pressure microwave dissolution capability. Inductively-coupled plasma atomic emission spectrometry (ICP-AES), inductively- coupled mass spectrometry (ICP-MS) and thermal-ionization mass spectrometry (TIMS) will be used to measure actinide isotopics and metallic impurities. New high-speed actinide separation methods have been developed that will be applied to isotopic characterization of nuclear materials by TIMS and ICP-MS to eliminate isobaric interferences between Pu-238 /U- 238 and Pu-241/Am-241. TEVA Resin, UTEVA Resin, and TRU Resin columns will be used with vacuum-assisted flow rates to minimize TIMS and ICP-MS sample turnaround times. For metallic impurity analysis, rapid column removal methods using UTEVA Resin, AGMP-1 anion resin and AG MP-50 cation resin have also been developed to remove plutonium and uranium matrix interferences prior to ICP-AES and ICP- MS measurements.

Maxwell, S.L. III [Westinghouse Savannah River Company, AIKEN, SC (United States); Jones, V.D.

1998-07-01T23:59:59.000Z

196

Guidelines for Electromagnetic Interference Testing of Power Plant Equipment: Revision 3 to TR-102323  

SciTech Connect

To continue meeting safety and reliability requirements while controlling costs, operators of nuclear power plants must be able to replace and upgrade equipment in a cost-effective manner. One issue that has been problematic for new plant equipment and especially for digital instrumentation and control (I&C) systems in recent years is electromagnetic compatibility (EMC). The EMC issue usually involves testing to show that critical equipment will not be adversely affected by electromagnetic interference (EMI) in the plant environment. This guide will help nuclear plant engineers address EMC issues and qualification testing in a consistent, comprehensive manner.

J. Cunningham and J. Shank

2004-11-01T23:59:59.000Z

197

Classical two-slit interference effects in double photoionization of molecular hydrogen at high energies  

DOE Green Energy (OSTI)

Recent experiments on double photoionization of H$_2$ with photon energies between 160 and 240 eV have revealed body-frame angular distributions that suggest classical two-slit interference effects may be present when one electron carries most of the available energy and the second electron is not observed. We report precise quantum mechanical calculations that reproduce the experimental findings. They reveal that the interpretation in terms of classical diffraction is only appropriate atsubstantially higher photon energies. At the energies considered in the experiment we offer an alternative explanation based on the mixing of two non-diffractive contributions by circularly polarized light.

Horner, Daniel A.; Miyabe, Shungo; Rescigno, Thomas N; McCurdy, C. William; Morales, Felipe; Martin, Fernando

2008-07-06T23:59:59.000Z

198

Loop induced interference effects in Higgs Boson plus two jet production at the LHC.  

E-Print Network (OSTI)

ar X iv :0 70 9. 35 13 v2 [ he p- ph ] 22 Fe b 2 00 8 Cavendish-HEP-07/09 Edinburgh 2007/21 Loop induced interference effects in Higgs Boson plus two jet production at the LHC J. R. Andersena, T. Binothb, G. Heinrichb, J. M. Smilliea a... processes allowed at the one-loop level in Higgs boson plus 2 jet production at the LHC. The corresponding one-loop amplitudes, which have not been considered in the lit- erature so far, are evaluated analytically using dimensional regularisation...

Andersen, Jeppe R; Binoth, T; Heinrich, G; Smillie, Jennifer M

199

Demonstration of an optical quantum controlled-NOT gate without path interference  

E-Print Network (OSTI)

We report the first experimental demonstration of an optical quantum controlled-NOT gate without any path interference, where the two interacting path interferometers of the original proposals (Phys. Rev. A {\\bf 66}, 024308 (2001), Phys. Rev. A {\\bf 65}, 012314 (2002)) have been replaced by three partially polarizing beam splitters with suitable polarization dependent transmittances and reflectances. The performance of the device is evaluated using a recently proposed method (Phys. Rev. Lett. {\\bf 94}, 160504 (2005)), by which the quantum process fidelity and the entanglement capability can be estimated from the 32 measurement results of two classical truth tables, significantly less than the 256 measurement results required for full quantum tomography.

Okamoto, R; Takeuchi, S; Sasaki, K; Okamoto, Ryo; Hofmann, Holger F.; Takeuchi, Shigeki; Sasaki, Keiji

2005-01-01T23:59:59.000Z

200

Demonstration of an optical quantum controlled-NOT gate without path interference  

E-Print Network (OSTI)

We report the first experimental demonstration of an optical quantum controlled-NOT gate without any path interference, where the two interacting path interferometers of the original proposals (Phys. Rev. A {\\bf 66}, 024308 (2001), Phys. Rev. A {\\bf 65}, 012314 (2002)) have been replaced by three partially polarizing beam splitters with suitable polarization dependent transmittances and reflectances. The performance of the device is evaluated using a recently proposed method (Phys. Rev. Lett. {\\bf 94}, 160504 (2005)), by which the quantum process fidelity and the entanglement capability can be estimated from the 32 measurement results of two classical truth tables, significantly less than the 256 measurement results required for full quantum tomography.

Ryo Okamoto; Holger F. Hofmann; Shigeki Takeuchi; Keiji Sasaki

2005-06-30T23:59:59.000Z

Note: This page contains sample records for the topic "analysis icp interference" 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

Quantum interference terms in nonmesonic weak decay of $?$-hypernuclei within a RPA formalism  

E-Print Network (OSTI)

Single and double coincidence nucleon spectra in the $\\Lambda$-hypernuclei weak decay are evaluated and discussed using a microscopic formalism. Nuclear matter is employed together with the local density approximation which allows us to analyze the $^{12}_{\\Lambda}C$ hypernucleus non-mesonic weak decay. Final state interactions (FSI) are included via the first order (in the nuclear residual interaction) terms to the RPA, where the strong residual interaction is modelled by a Bonn potential. At this level of approximation, these FSI are pure quantum interference terms between the primary decay $(\\Lambda N \\to NN)$ and $(\\Lambda N \\to NN \\to NN)$, where the strong interaction is responsible for the last piece in the second reaction. Also the Pauli exchange contributions are explicitly evaluated. We show that the inclusion of Pauli exchange terms is important. A comparison with data is made. We conclude that the limitations in phase space in the RPA makes this approximation inadequate to reproduce the nucleon spectra. This fact, does not allow us to draw a definite conclusion about the importance of the interference terms.

E. Bauer

2007-07-30T23:59:59.000Z

202

Influence of Polarization Setting on Gold Nanorod Signal at Nonplasmonic Wavelengths Under Differential Interference Contrast Microscopy  

SciTech Connect

Researchers rely on a variety of microscopic techniques for observing and tracking anisotropic nanoparticles in real time experiments. This technical note focuses on the optical behavior exhibited by gold nanorods at nonplasmonic wavelengths under differential interference contrast microscopy (DIC). Intense diffraction patterns appear at nonplasmonic wavelengths, and the behavior of these patterns can be altered by adjusting the surrounding medium or the polarizer setting. Such patterns are absent when linear and crossed polarizations are utilized. Making polarization adjustments is important in DIC microscopy, because it affects bias retardation and image contrast. The nonplasmonic diffraction bands that were observed could potentially be exploited for rotational tracking, but more importantly, researchers should exhibit care in selecting a nanorod sample and the polarization setting when working with DIC microscopy.

Stender, Anthony S.; Augspurgert, Ashley E.; Wang, Gufeng: Fang, Ning

2012-05-31T23:59:59.000Z

203

Interference effects in proton scattering on {sup 15}N nuclei at intermediate energies  

SciTech Connect

The differential cross section for proton scattering on {sup 15}N nuclei is calculated within Glauber diffraction theory at energies of 0.2, 0.6, and 1.0 GeV. Use is made of the shell-model wave function for the {sup 15}N nucleus. The contribution of single and double collisions to the Glauber operator {Omega} is taken into account. The sensitivity of the differential cross sections to the contributions of scattering on nucleons from different shells, to the parameters of the elementary pN amplitude, and to the energy of projectile protons is investigated. It is shown that the interference between amplitudes corresponding to different collision multiplicities, as well as between the amplitudes for scattering on nucleons from different shells, determines special features of the cross section.

Ibraeva, E. T., E-mail: ibr@inp.k [National Nuclear Center of the Republic of Kazakhstan, Institute of Nuclear Physics (Kazakhstan); Zhusupov, M.A.; Imambekov, O. [Al-Farabi Kazakh National University (Kazakhstan); Krassovitskiy, P. M. [National Nuclear Center of the Republic of Kazakhstan, Institute of Nuclear Physics (Kazakhstan)

2010-08-15T23:59:59.000Z

204

Preliminary analyses of scenarios for potential human interference for repositories in three salt formations  

Science Conference Proceedings (OSTI)

Preliminary analyses of scenarios for human interference with the performance of a radioactive waste repository in a deep salt formation are presented. The following scenarios are analyzed: (1) the U-Tube Connection Scenario involving multiple connections between the repository and the overlying aquifer system; (2) the Single Borehole Intrusion Scenario involving penetration of the repository by an exploratory borehole that simultaneously connects the repository with overlying and underlying aquifers; and (3) the Pressure Release Scenario involving inflow of water to saturate any void space in the repository prior to creep closure with subsequent release under near lithostatic pressures following creep closure. The methodology to evaluate repository performance in these scenarios is described and this methodology is applied to reference systems in three candidate formations: bedded salt in the Palo Duro Basin, Texas; bedded salt in the Paradox Basin, Utah; and the Richton Salt Dome, Mississippi, of the Gulf Coast Salt Dome Basin.

Not Available

1985-10-01T23:59:59.000Z

205

Achievable Rate and Optimal Physical Layer Rate Allocation in Interference-Free Wireless Networks  

E-Print Network (OSTI)

We analyze the achievable rate in interference-free wireless networks with physical layer fading channels and orthogonal multiple access. As a starting point, the point-to-point channel is considered. We find the optimal physical and network layer rate trade-off which maximizes the achievable overall rate for both a fixed rate transmission scheme and an improved scheme based on multiple virtual users and superposition coding. These initial results are extended to the network setting, where, based on a cut-set formulation, the achievable rate at each node and its upper bound are derived. We propose a distributed optimization algorithm which allows to jointly determine the maximum achievable rate, the optimal physical layer rates on each network link, and an opportunistic back-pressure-type routing strategy on the network layer. This inherently justifies the layered architecture in existing wireless networks. Finally, we show that the proposed layered optimization approach can achieve almost all of the ergodic ...

Cui, Tao; Kliewer, Joerg

2009-01-01T23:59:59.000Z

206

Assessment and Mitigation of Diagnostic-Generated Electromagnetic Interference at the National Ignition Facility  

SciTech Connect

Electromagnetic interference (EMI) is an ever-present challenge at laser facilities such as the National Ignition Facility (NIF). The major source of EMI at such facilities is laser-target interaction that can generate intense electromagnetic fields within, and outside of, the laser target chamber. In addition, the diagnostics themselves can be a source of EMI, even interfering with themselves. In this paper we describe EMI generated by ARIANE and DIXI, present measurements, and discuss effects of the diagnostic-generated EMI on ARIANE's CCD and on a PMT nearby DIXI. Finally we present some of the efforts we have made to mitigate the effects of diagnostic-generated EMI on NIF diagnostics.

Brown, C G; Ayers, M J; Felker, B; Ferguson, W; Holder, J P; Nagel, S R; Piston, K W; Simanovskaia, N; Throop, A L; Chung, M; Hilsabeck, T

2012-04-20T23:59:59.000Z

207

Decentralized Delay Optimal Control for Interference Networks with Limited Renewable Energy Storage  

E-Print Network (OSTI)

In this paper, we consider delay minimization for interference networks with renewable energy source, where the transmission power of a node comes from both the conventional utility power (AC power) and the renewable energy source. We assume the transmission power of each node is a function of the local channel state, local data queue state and local energy queue state only. In turn, we consider two delay optimization formulations, namely the decentralized partially observable Markov decision process (DEC-POMDP) and Non-cooperative partially observable stochastic game (POSG). In DEC-POMDP formulation, we derive a decentralized online learning algorithm to determine the control actions and Lagrangian multipliers (LMs) simultaneously, based on the policy gradient approach. Under some mild technical conditions, the proposed decentralized policy gradient algorithm converges almost surely to a local optimal solution. On the other hand, in the non-cooperative POSG formulation, the transmitter nodes are non-cooperat...

Huang, Huang

2012-01-01T23:59:59.000Z

208

Miniaturized hand held microwave interference scanning system for NDE of dielectric armor and armor systems  

Science Conference Proceedings (OSTI)

Inspection of ceramic-based armor has advanced through development of a microwave-based, portable, non-contact NDE system. Recently, this system was miniaturized and made wireless for maximum utility in field applications. The electronic components and functionality of the laboratory system are retained, with alternative means of position input for creation of scan images. Validation of the detection capability was recently demonstrated using specially fabricated surrogates and ballistic impact-damaged specimens. The microwave data results have been compared to data from laboratory-based microwave interferometry systems and digital x-ray imaging. The microwave interference scanning has been shown to reliably detect cracks, laminar features and material property variations. The authors present details of the system operation, descriptions of the test samples used and recent results obtained.

Schmidt, Karl F.; Little, Jack R. [Evisive, Inc., Baton Rouge, LA (United States); Ellingson, William A. [Argonne National Laboratory, Argonne, IL(United States); Meitzler, Thomas J. [US Army Research and Development Command Tank Automotive Research Development and Engineering Center, Warren, MI (United States); Green, William [US Army Research Laboratory, Aberdeen Proving Ground, MD (United States)

2011-06-23T23:59:59.000Z

209

Two-center interferences in photoionization of a dissociating H{sub 2}{sup +} molecule  

SciTech Connect

We analyze two-center interference effects in the yields of ionization of a dissociating hydrogen molecular ion by an ultrashort vuv laser pulse. To this end, we performed numerical simulations of the time-dependent Schroedinger equation for a H{sub 2}{sup +} model ion interacting with two time-delayed laser pulses. The scenario considered corresponds to a pump-probe scheme, in which the first (pump) pulse excites the molecular ion to the first excited dissociative state and the second (probe) pulse ionizes the electron as the ion dissociates. The results of our numerical simulations for the ionization yield as a function of the time delay between the two pulses exhibit characteristic oscillations due to interferences between the partial electron waves emerging from the two protons in the dissociating hydrogen molecular ion. We show that the photon energy of the pump pulse should be in resonance with the {sigma}{sub g}-{sigma}{sub u} transition and the pump pulse duration should not exceed 5 fs in order to generate a well-confined nuclear wave packet. The spreading of the nuclear wave packet during the dissociation is found to cause a decrease of the amplitudes of the oscillations as the time delay increases. We develop an analytical model to fit the oscillations and show how dynamic information about the nuclear wave packet, namely, velocity, mean internuclear distance, and spreading, can be retrieved from the oscillations. The predictions of the analytical model are tested well against the results of our numerical simulations.

Picon, A.; Kapteyn, H. C.; Murnane, M. M.; Becker, A. [JILA and Department of Physics, University of Colorado at Boulder, Boulder, Colorado 80309-0440 (United States); Bahabad, A. [JILA and Department of Physics, University of Colorado at Boulder, Boulder, Colorado 80309-0440 (United States); Department of Physical Electronics, School of Electrical Engineering, Tel-Aviv University, Tel-Aviv, 69978 (Israel)

2011-01-15T23:59:59.000Z

210

Quantum interference and control of the dynamic Franz-Keldysh effect: Generation and detection of terahertz space-charge fields  

Science Conference Proceedings (OSTI)

The Dynamic Franz Keldysh Effect (DFKE) is produced and controlled in bulk gallium arsenide by quantum interference without the aid of externally applied fields and is spatially and temporally resolved using ellipsometric pump-probe techniques. The {approx}3 THz internal driving field for the DFKE is a transient space-charge field that is associated with a critically damped coherent plasma oscillation produced by oppositely traveling ballistic electron and hole currents that are injected by two-color quantum interference techniques. The relative phase and polarization of the two pump pulses can be used to control the DFKE.

Wang, Rui [Laboratory for Photonics and Quantum Electronics, 138 IATL, University of Iowa, Iowa City, Iowa 52242 (United States) [Laboratory for Photonics and Quantum Electronics, 138 IATL, University of Iowa, Iowa City, Iowa 52242 (United States); Department of Physics and Astronomy, University of Kansas, Lawrence, Kansas 66045 (United States); Jacobs, Paul; Smirl, Arthur L. [Laboratory for Photonics and Quantum Electronics, 138 IATL, University of Iowa, Iowa City, Iowa 52242 (United States)] [Laboratory for Photonics and Quantum Electronics, 138 IATL, University of Iowa, Iowa City, Iowa 52242 (United States); Zhao, Hui [Department of Physics and Astronomy, University of Kansas, Lawrence, Kansas 66045 (United States)] [Department of Physics and Astronomy, University of Kansas, Lawrence, Kansas 66045 (United States)

2013-06-24T23:59:59.000Z

211

Fluidic Microvalve Digital Processors for Automated Biochemical Analysis  

E-Print Network (OSTI)

are immune to electromagnetic interference. 2.2 Introductionor pulsed electromagnetic interference. 84 Such computing

Jensen, Erik Christian

2011-01-01T23:59:59.000Z

212

Regarding the Comments on "Near-field interference for the unidirectional excitation of electromagnetic guided modes" by Lee et al. [arXiv:1306.5068  

E-Print Network (OSTI)

Regarding the Comments on "Near-field interference for the unidirectional excitation of electromagnetic guided modes" by Lee et al. [arXiv:1306.5068 (2013)].

Rodríguez-Fortuño, Francisco J; Ginzburg, Pavel; O'Connor, Daniel; Martínez, Alejandro; Wurtz, Gregory A; Zayats, Anatoly V

2013-01-01T23:59:59.000Z

213

DOE/EA-1633: Environmental Assessment for Green Mountain Reservoir Substitution and Power Interference Agreements (December 2008)  

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

Green Mountain Reservoir Green Mountain Reservoir Substitution and Power Interference Agreements Final EA i Table of Contents Acronyms ...................................................................................................................................... vi 1.0 Purpose and Need .......................................................................................................... 1-1 1.1 Introduction.......................................................................................................... 1-1 1.2 Project Purpose and Need .................................................................................... 1-1 1.3 Study Area ........................................................................................................... 1-2 1.4 Background

214

The Effect of the Interference of Traveling and Stationary Waves on Time Variations of the Large-Scale Circulation  

Science Conference Proceedings (OSTI)

It is hypothesized that the interference of stationary and traveling waves of the same longitudinal can cause some of the observed time variations in the large-scale circulation. To explore this hypothesis the eight-winter average structure of a ...

Roland A. Madden

1983-05-01T23:59:59.000Z

215

 

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

Sodium and lithium are present in most environmental samples. In seawater and some fresh water samples, the sodium concentration can cause Sodium and lithium are present in most environmental samples. In seawater and some fresh water samples, the sodium concentration can cause interferences for lithium measurements by ICP-MS analysis. A lithium separation method that greatly reduced the amount of sodium would be advantageous for ICP-MS analysis. Brown and Reedy proposed a lithium separation approach in 1930 with acetone as an extractant since lithium chloride is very soluble in acetone and sodium chloride is insoluble in acetone. NTS would like to try this lithium separation approach with environmental samples for ICP-MS analysis. Environmental samples will be dried down in vials placed in a graphite block and then the vials will be added water and concentrated hydrochloric acid and dried down. These vials will be added water and concentrated hydrochloric acid and dried down

216

 

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

Sodium and lithium are present in most environmental samples. In seawater and some fresh water samples, the sodium concentration can cause Sodium and lithium are present in most environmental samples. In seawater and some fresh water samples, the sodium concentration can cause interferences for lithium measurements by ICP-MS analysis. A lithium separation method that greatly reduced the amount of sodium would be advantageous for ICP-MS analysis. Brown and Reedy proposed a lithium separation approach in 1930 with acetone as an extractant since lithium chloride is very soluble in acetone and sodium chloride is insoluble in acetone. NTS would like to try this lithium separation approach with environmental samples for ICP-MS analysis. Environmental samples will be dried down in vials placed in a graphite block and then the vials will be added water and concentrated hydrochloric acid and dried down. These vials will be added water and concentrated hydrochloric acid and dried down a

217

Strong scaling analysis of a parallel, unstructured, implicit solver and the influence of the operating system interference  

Science Conference Proceedings (OSTI)

PHASTA falls under the category of high-performance scientific computation codes designed for solving partial differential equations (PDEs). Its a massively parallel unstructured, implicit solver with particular emphasis on fluid dynamics (CFD) applications. ... Keywords: OS jitter, Strong scaling, massively parallel processing, unstructured and implicit methods

Onkar Sahni; Christopher D. Carothers; Mark S. Shephard; Kenneth E. Jansen

2009-08-01T23:59:59.000Z

218

Erasing the traces of classical mechanics in ionization of H{sub 2} by quantum interferences  

SciTech Connect

The single ionization of hydrogen molecules by fast electron impact is studied theoretically for transitions from the ground (gerade) state to final ground (gerade) and first-excited (ungerade) states of H{sub 2}{sup +}. It is shown that under definite conditions and for particular orientations of the molecule, the main physical features of the ionization reaction, which are the binary and recoil peaks usually associated with classical mechanisms, are completely erased by quantum interference effects that resemble the ones predicted previously for photoionization reactions. However, these new effects cannot be derived from photoionization results, as the electromagnetic field cannot transfer momentum. In addition, it is found that the emission spectra of transitions leading to the final gerade and ungerade states of the H{sub 2}{sup +} residual target are analogous in certain cases to the patterns of two sources emitting waves in phase or antiphase, respectively. Finally, we show how an average of the emission from randomly oriented molecules produces a binary peak at the classical expected position, in agreement with experiments.

Fojon, O. A.; Stia, C. R.; Rivarola, R. D. [Laboratorio de Colisiones Atomicas and Instituto de Fisica Rosario, CONICET-UNR, Avenida Pellegrini 250, 2000 Rosario (Argentina)

2011-09-15T23:59:59.000Z

219

Ionization of Stark states with half-cycle pulses: Interference effects in the continuum  

SciTech Connect

We study the ionization of extreme Stark states in sodium by THz electromagnetic half-cycle pulses. The results of our full-quantum calculations reveal the presence of an oscillatory pattern in the ionization spectra of extreme red (downhill) states that have been kicked away from the ion core (downhill with respect to the potential imposed by the Stark field). We find no oscillations in the spectra of extreme blue (uphill) states that have been kicked towards the ion core (also downhill with respect to the Stark potential). The oscillatory pattern in the red state ionization spectra is explained with a one-dimensional semiclassical model in terms of interferences between two classical paths. This model also predicts that the blue state ionization spectra should also show oscillatory behavior. The absence of the oscillations in the full calculations can be regarded as a breakdown of the one-dimensional model in representing the ionization dynamics of these states. We find that the one-dimensional model fails when the duration of the THz pulse is comparable to the classical Kepler orbit time.

Manescu, Corneliu; Krause, Jeffrey L. [Quantum Theory Project, University of Florida, Gainesville, Florida 32611-8435, USA (United States); Schafer, Kenneth J. [Department of Physics and Astronomy, Louisiana State University, Baton Rouge, Louisiana 70803-4001, USA (United States)

2003-07-01T23:59:59.000Z

220

Electromagnetic interference of GSM mobile phones with the implantable deep brain stimulator, ITREL-III  

E-Print Network (OSTI)

© 2003 Kainz et al; licensee BioMed Central Ltd. This is an Open Access article: verbatim copying and redistribution of this article are permitted in all media for any purpose, provided this notice is preserved along with the article's original URL. Background: The purpose was to investigate mobile phone interference with implantable deep brain stimulators by means of 10 different 900 Mega Hertz (MHz) and 10 different 1800 MHz GSM (Global System for Mobile Communications) mobile phones. Methods: All tests were performed in vitro using a phantom especially developed for testing with deep brain stimulators. The phantom was filled with liquid phantom materials simulating brain and muscle tissue. All examinations were carried out inside an anechoic chamber on two implants of the same type of deep brain stimulator: ITREL-III from Medtronic Inc., USA. Results: Despite a maximum transmitted peak power of mobile phones of 1 Watt (W) at 1800 MHz and 2 W at 900 MHz respectively, no influence on the ITREL-III was found. Neither the shape of the pulse form changed nor did single pulses fail. Tests with increased transmitted power using CW signals and broadband dipoles have shown that inhibition of the ITREL-III occurs at frequency dependent power levels which are below the emissions of GSM mobile phones. The ITREL-III is

Wolfgang Kainz; François Alesch; Dulciana Dias; Chan Open Access

2003-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "analysis icp interference" 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

The cellular Mre11 protein interferes with adenovirus E4 mutant DNA replication  

SciTech Connect

Adenovirus type 5 (Ad5) relocalizes and degrades the host DNA repair protein Mre11, and efficiently initiates viral DNA replication. Mre11 associates with Ad E4 mutant DNA replication centers and is important for concatenating viral genomes. We have investigated the role of Mre11 in the E4 mutant DNA replication defect. RNAi-mediated knockdown of Mre11 dramatically rescues E4 mutant DNA replication in cells that do or do not concatenate viral genomes, suggesting that Mre11 inhibits DNA replication independent of genome concatenation. The mediator of DNA damage checkpoint 1 (Mdc1) protein is involved in recruiting and sustaining Mre11 at sites of DNA damage following ionizing radiation. We observe foci formation by Mdc1 in response to viral infection, indicating that this damage response protein is activated. However, knockdown of Mdc1 does not prevent Mre11 from localizing at viral DNA replication foci or rescue E4 mutant DNA replication. Our results are consistent with a model in which Mre11 interferes with DNA replication when it is localized at viral DNA replication foci.

Mathew, Shomita S. [Department of Microbiology, 32 Pearson Hall, Miami University, Oxford OH 45056 (United States); Bridge, Eileen [Department of Microbiology, 32 Pearson Hall, Miami University, Oxford OH 45056 (United States)], E-mail: BridgeE@muohio.edu

2007-09-01T23:59:59.000Z

222

Electromagnetic interference from transmission lines located in central region of Saudi Arabia  

Science Conference Proceedings (OSTI)

This paper discusses the electromagnetic interference (EMI) generated by transmission lines operating in the Central Region of Saudi Arabia. These lines have operating voltages of 132, 230 and 380 kV and are located in a hot, dry arid desert land where precipitaton is very low. Measurements of typical EMI characteristics such as frequency spectrum, lateral profile and statistical variation are performed for each type of line and results are analyzed. It is found that general noise characteristic of these lines are similar to those reported in the literature for other lines which are located in relatively wet environment. The results further show that if operating gradients are low, the increase of EMI due to rain is lower than 20 dB value usually observed. The presence of sand and dust storms does not increase EMI level in any appreciable manner. The fair weather EMI level of these lines can be predicted with reasonable accuracy by using the CIGRE formula. Results are also presented for power line carrier related EMI.

Al-Arainy, A.A.; Malik, N.H.; Abdul-Aal, L.N.

1988-01-01T23:59:59.000Z

223

Electromagnetic interference from transmission lines located in central region of Saudi Arabia  

Science Conference Proceedings (OSTI)

This paper discusses the electromagnetic interference (EMI) generated by transmission lines operating in the Central Region of Saudi Arabia. These lines have operating voltages of 132, 230 and 380 kV and are located in a hot, dry arid desert land where precipitation is very low. Measurements of typical EMI characteristics such as frequency spectrum, lateral profile and statistical variation are performed for each type of line and results are analyzed. It is found that general noise characteristic of these lines are similar to those reported in the literature for other lines which are located in relatively wet environment. The results further show that if operating gradients are low, the increase of EMI due to rain is lower than 20 dB value usually observed. The presence of sand and dust storms does not increase EMI level in any appreciable manner. The fair weather EMI level of these lines can be predicted with reasonable accuracy by using the CIGRE formula. Results are also presented for power line carrier related EMI.

Al-Arainy, A.A.; Malik, N.H.; Abdul-Aal, L.N.

1989-01-01T23:59:59.000Z

224

{pi}-superconducting quantum interference device from ultracold fermionic atomic gases  

Science Conference Proceedings (OSTI)

Ultracold fermionic atomic gas with Bardeen-Cooper-Schrieffer pairing between hyperfine states is studied. It is shown that a {pi}-Josephson contact [superfluid-normal-gas-superfluid (S/N/S)] can be realized in systems where the left and right banks S are superfluids and the weak link N is a normal gas with the finite mismatch in chemical potentials {delta}{sub {mu}{sub N}}{ne}0. If such a {pi}-junction is part of a closed superfluid ring the superfluid mass-current flows spontaneously--the ultracold atomic {pi}-superconducting quantum interference device ({pi}-SQUID). This situation is realized if the radius of the ring R is larger than the critical one R{sub c}. The same effect will be realized also for {delta}{sub {mu}{sub N}}>>{delta}, where {delta} is the superfluid gap in S. The sensitivity of the {pi}-SQUID to inertial effects is discussed in the case of rotational motion.

Kulic, Miodrag L. [Max Planck Institute for the Physics of Complex Systems, 01187 Dresden (Germany)

2007-11-15T23:59:59.000Z

225

Soft holographic interference lithography microlens for enhanced organic light emitting diode light extraction  

SciTech Connect

Very uniform 2 {micro}m-pitch square microlens arrays ({micro}LAs), embossed on the blank glass side of an indium-tin-oxide (ITO)-coated 1.1 mm-thick glass, are used to enhance light extraction from organic light-emitting diodes (OLEDs) by {approx}100%, significantly higher than enhancements reported previously. The array design and size relative to the OLED pixel size appear to be responsible for this enhancement. The arrays are fabricated by very economical soft lithography imprinting of a polydimethylsiloxane (PDMS) mold (itself obtained from a Ni master stamp that is generated from holographic interference lithography of a photoresist) on a UV-curable polyurethane drop placed on the glass. Green and blue OLEDs are then fabricated on the ITO to complete the device. When the {mu}LA is {approx}15 x 15 mm{sup 2}, i.e., much larger than the {approx}3 x 3 mm{sup 2} OLED pixel, the electroluminescence (EL) in the forward direction is enhanced by {approx}100%. Similarly, a 19 x 25 mm{sup 2} {mu}LA enhances the EL extracted from a 3 x 3 array of 2 x 2 mm{sup 2} OLED pixels by 96%. Simulations that include the effects of absorption in the organic and ITO layers are in accordance with the experimental results and indicate that a thinner 0.7 mm thick glass would yield a {approx}140% enhancement.

Park, Joong-Mok; Gan, Zhengqing; Leung, Wai Y.; Liu, Rui; Ye, Zhuo; Constant, Kristen; Shinar, Joseph; Shinar, Ruth; Ho, Kai-Ming

2011-06-06T23:59:59.000Z

226

Program on Technology Innovation: Minimizing the Risk of Electromagnetic Interference in Modifying Power Plants and Mixed Control Eq uipment  

Science Conference Proceedings (OSTI)

This EPRI Technical Report presents techniques, methods, and knowledge to minimize electromagnetic interference (EMI) risks when modifying nuclear plants and increasing the mixed (analog, hybrid, and digital) environment. Chapter 2 addresses present, evolving, and future EMC standards that will impact plant. Chapter 3 discusses electromagnetic environments (EME) and their dynamic nature migrating from analog to hybrid and digital equipment followed by guidance for testing equipment in the gigahertz (GHz)...

2008-12-23T23:59:59.000Z

227

Investigation of an Electromagnetic Interference (EMI) Problem Involving Light-Emitting Diode Streetlights and an Amateur Radio Tran sceiver  

Science Conference Proceedings (OSTI)

Any type of electronic device is susceptible to energy from the electromagnetic environment. This technical update describes an investigation of electromagnetic interference (EMI) problems associated with amateur radio, distribution hardware, and streetlights at a customer's home in Camden, Tennessee. Because light-emitting diode (LED) streetlights were deemed the direct cause of the EMI problem, an investigational plan involving a two-level effort was customized to fit the situation. First, field observ...

2011-10-06T23:59:59.000Z

228

Quantum interferences in the $?N \\to e^+e^- N$ reaction close to the vector meson production threshold  

E-Print Network (OSTI)

The exclusive photoproduction of $e^+e^-$ pairs from nucleons close to the vector meson production threshold ($1.4electromagnetic and reflect mostly the nucleon magnetic structure. The $\\gamma N\\to e^+e^- N$ amplitudes arising from vector meson production and decay are derived from $\\gamma N\\to \\rho^0 N$ and $\\gamma N \\to \\omega N$ amplitudes supplemented by the Vector Meson Dominance assumption. The vector meson photoproduction amplitudes are calculated using a relativistic and unitary coupled-channel approach to meson-nucleon scattering. They depend sensitively on the coupling of vector fields to baryon resonances. The $\\gamma N \\to e^+e^- N$ differential cross sections display interference patterns. The interference of Bethe-Heitler pair production with vector meson $e^+e^-$ decay is quite small in the domain of validity of our model for all angles of the emitted $e^+e^-$ pair. The interference of $\\rho^0$- and $\\omega$-mesons in the $e^+e^-$ channel can be large. It is constructive for the $\\gamma p \\to e^+e^- p$ reaction and destructive for the $\\gamma n \\to e^+e^- n$ reaction. We discuss the shape and magnitude of the $e^+e^-$ pair spectra produced in the $\\gamma p \\to e^+e^- p$ and $\\gamma n \\to e^+e^- n$ reactions as functions of the pair emission angle and of the total center of mass energy $\\sqrt s$.

Matthias F. M. Lutz; Madeleine Soyeur

2005-03-31T23:59:59.000Z

229

Comparison of constant-rate pumping test and slug interference test results at the Hanford Site B pond multilevel test facility  

SciTech Connect

Pacific Northwest Laboratory (PNL), as part of the Hanford Site Ground-Water Surveillance Project, is responsible for monitoring the movement and fate of contamination within the unconfined aquifer to ensure that public health and the environment are protected. To support the monitoring and assessment of contamination migration on the Hanford Site, a sitewide 3-dimensional groundwater flow model is being developed. Providing quantitative hydrologic property data is instrumental in development of the 3-dimensional model. Multilevel monitoring facilities have been installed to provide detailed, vertically distributed hydrologic characterization information for the Hanford Site unconfined aquifer. In previous reports, vertically distributed water-level and hydrochemical data obtained over time from these multi-level monitoring facilities have been evaluated and reported. This report describes the B pond facility in Section 2.0. It also provides analysis results for a constant-rate pumping test (Section 3.0) and slug interference test (Section 4.0) that were conducted at a multilevel test facility located near B Pond (see Figure 1. 1) in the central part of the Hanford Site. A hydraulic test summary (Section 5.0) that focuses on the comparison of hydraulic property estimates obtained using the two test methods is also presented. Reference materials are listed in Section 6.0.

Spane, F.A. Jr.; Thorne, P.D.

1995-10-01T23:59:59.000Z

230

Initial report on the application of laser ablation - inductively coupled plasma mass spectrometry for the analysis of radioactive Hanford Tank Waste materials  

Science Conference Proceedings (OSTI)

Initial LA/MS analyses of Hanford tank waste samples were performed successfully using laboratory and hot cell LA/MS instrumentation systems. The experiments described in this report have demonstrated that the LA/MS data can be used to provide rapid analysis of solid, radioactive Hanford tank waste samples to identify major, minor, and trace constituents (elemental and isotopic) and fission products and radioactive isotopes. The ability to determine isotopic constituents using the LA/MS method yielded significant advantages over ICP/AES analysis by providing valuable information on fission products and radioactive constituents.

Smith, M.R.; Hartman, J.S.; Alexander, M.L.; Mendoza, A.; Hirt, E.H.; Stewart, T.L.; Hansen, M.A.; Park, W.R.; Peters, T.J.; Burghard, B.J.

1996-12-01T23:59:59.000Z

231

Original Paper Complementary analysis of historical glass by ...  

Science Conference Proceedings (OSTI)

For this purpose acetone of analytical grade (Sigma-Aldrich Chemie. GmbH, Hungary; www.sigmaladrich.com) was used. For LA ICP. MS measurements blocks ...

232

Observation of Two-source Interference in the Photoproduction Reaction AuAu --> AuAu rho 0  

SciTech Connect

In ultra-peripheral relativistic heavy-ion collisions, a photon from the electromagnetic field of one nucleus can fluctuate to a quark-antiquark pair and scatter from the other nucleus, emerging as a {rho}{sup 0}. The {rho}{sup 0} production occurs in two well-separated (median impact parameters of 20 and 40 fermi for the cases considered here) nuclei, so the system forms a 2-source interferometer. At low transverse momenta, the two amplitudes interfere destructively, suppressing {rho}{sup 0} production. Since the {rho}{sup 0} decays before the production amplitudes from the two sources can overlap, the two-pion system can only be described with an entangled non-local wave function, and is thus an example of the Einstein-Podolsky-Rosen paradox. We observe this suppression in 200 GeV per nucleon-pair gold-gold collisions. The interference is 87% {+-} 5%(stat.) {+-} 8% (syst.) of the expected level. This translates into a limit on decoherence due to wave function collapse or other factors, of 23% at the 90% confidence level.

STAR Coll

2009-03-02T23:59:59.000Z

233

Constitutive model effects on finite element modeling of elastomer behavior in radial interference seal configurations  

E-Print Network (OSTI)

Elastomers are becoming more prevalent in everyday products, and it is very important to be able to describe their behavior. Particularly, with advancements in computer hardware and software, the use of finite element analysis in design and analysis is becoming more prevalent. However, there is no accepted and agreed upon method to generally describe elastomer behavior in the finite element codes. Evaluation of two existing material models found in most FEA packages was conducted using experimental data gathered and fit to each model's strain energy function. The effects of using various combinations of material model and experimental data have been studied. The modeling started with simple stress states and progressed to some more general in nature. The two strain energy fimctions used were the Mooney-Rivlin and a 5 term expansion of the Rivlin series called the Polynomial (N=2) function.

Jackson, Jason R.

1996-01-01T23:59:59.000Z

234

Scanning angle Raman spectroscopy: Investigation of Raman scatter enhancement techniques for chemical analysis  

SciTech Connect

This thesis outlines advancements in Raman scatter enhancement techniques by applying evanescent fields, standing-waves (waveguides) and surface enhancements to increase the generated mean square electric field, which is directly related to the intensity of Raman scattering. These techniques are accomplished by employing scanning angle Raman spectroscopy and surface enhanced Raman spectroscopy. A 1064 nm multichannel Raman spectrometer is discussed for chemical analysis of lignin. Extending dispersive multichannel Raman spectroscopy to 1064 nm reduces the fluorescence interference that can mask the weaker Raman scattering. Overall, these techniques help address the major obstacles in Raman spectroscopy for chemical analysis, which include the inherently weak Raman cross section and susceptibility to fluorescence interference.

Meyer, Matthew W. [Ames Laboratory

2013-03-14T23:59:59.000Z

235

Opto-electronic device for frequency standard generation and terahertz-range optical demodulation based on quantum interference  

DOE Patents (OSTI)

An opto-electronic system and technique for comparing laser frequencies with large frequency separations, establishing new frequency standards, and achieving phase-sensitive detection at ultra high frequencies are disclosed. Light responsive materials with multiple energy levels suitable for multi-photon excitation are preferably used for nonlinear mixing via quantum interference of different excitation paths affecting a common energy level. Demodulation of a carrier with a demodulation frequency up to 100`s THZ can be achieved for frequency comparison and phase-sensitive detection. A large number of materials can be used to cover a wide spectral range including the ultra violet, visible and near infrared regions. In particular, absolute frequency measurement in a spectrum from 1.25 {micro}m to 1.66 {micro}m for fiber optics can be accomplished with a nearly continuous frequency coverage. 7 figs.

Georgiades, N.P.; Polzik, E.S.; Kimble, H.J.

1999-02-02T23:59:59.000Z

236

Sampling Rate and Ozone Interference for Passive Deployment of Waters Sep-Pak XPoSure Samplers  

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

Investigation of Formaldehyde and Acetaldehyde Investigation of Formaldehyde and Acetaldehyde Sampling Rate and Ozone Interference for Passive Deployment of Waters Sep-Pak XPoSure Samplers Nasim A. Mullen, Marion L. Russell, Melissa M. Lunden, Brett C. Singer Environmental Energy Technologies Division Indoor Environment Group Lawrence Berkeley National Laboratory Berkeley, California, USA August 2013 Funding was provided by the California Energy Commission through Contract 500-09-042, by the U.S. Dept. of Energy Building America Program under Contract DE-AC02-05CH11231; by the U.S. Dept. of Housing and Urban Development, Office of Healthy Homes and Lead Hazard Control through Agreement I-PHI-01070; and by the U.S. Environmental Protection Agency Indoor Environments Division through

237

Characterization and Suppression of the Electromagnetic Interference Induced Phase Shift in the JLab FEL Photo - Injector Advanced Drive Laser System  

SciTech Connect

The drive laser for the photo-cathode gun used in the JLab Free Electron Laser (FEL) facility had been experiencing various phase shifts on the order of tens of degrees (>20{sup o} at 1497 MHz or >40ps) when changing the Advanced Drive Laser (ADL) [2][3][4] micro-pulse frequencies. These phase shifts introduced multiple complications when trying to setup the accelerator for operation, ultimately inhibiting the robustness and overall performance of the FEL. Through rigorous phase measurements and systematic characterizations, we determined that the phase shifts could be attributed to electromagnetic interference (EMI) coupling into the ADL phase control loop, and subsequently resolved the issue of phase shift to within tenths of a degree (<0.5{sup o} at 1497 MHz or <1ps). The diagnostic method developed and the knowledge gained through the entire process will prove to be invaluable for future designs of similar systems.

F. G. Wilson, D. Sexton, S. Zhang

2011-09-01T23:59:59.000Z

238

Coherence effects in heavy ion-atom collisions. [Total cross sections, F waves, charge capture, ionization, interference, scattering amplitudes  

DOE Green Energy (OSTI)

A new approach to charge capture and ionization by highly stripped projectiles is described and shown to explain cross section systematics through the periodic table. Oscillations in cross section with respect to charge state observed around atomic number 70 are explained as an f-wave resonance in the target electron-projectile scattering. The ratio of H/sub 2/ to H cross sections for both light and heavy projectiles is shown to fit a two center coherent scattering model; independent scattering by the two centers is not a good assumption for velocities below 4 a.u. Similar coherence effects are predicted in stripping by molecular gases even in multi-electron processes where the independent atom model might be thought valid. Recent experiments on the forward peak of electrons ejected from the projectile show interesting structure which can be partly explained without invoking interference effects. 7 references.

Bottcher, C.

1978-01-01T23:59:59.000Z

239

Stable single-photon interference in a 1 km fiber-optical Mach-Zehnder interferometer with continuous phase adjustment  

E-Print Network (OSTI)

We experimentally demonstrate stable and user-adjustable single-photon interference in a 1 km long fiber- optical Mach-Zehnder interferometer, using an active phase control system with the feedback provided by a classical laser. We are able to continuously tune the single-photon phase difference between the interferometer arms using a phase modulator, which is synchronized with the gate window of the single-photon detectors. The phase control system employs a piezoelectric fiber stretcher to stabilize the phase drift in the interferometer. A single-photon net visibility of 0.97 is obtained, yielding future possibilities for experimental realizations of quantum repeaters in optical fibers, and violation of Bell's inequalities using genuine energy-time entanglement

Xavier, G B

2011-01-01T23:59:59.000Z

240

Stable single-photon interference in a 1 km fiber-optical Mach-Zehnder interferometer with continuous phase adjustment  

E-Print Network (OSTI)

We experimentally demonstrate stable and user-adjustable single-photon interference in a 1 km long fiber- optical Mach-Zehnder interferometer, using an active phase control system with the feedback provided by a classical laser. We are able to continuously tune the single-photon phase difference between the interferometer arms using a phase modulator, which is synchronized with the gate window of the single-photon detectors. The phase control system employs a piezoelectric fiber stretcher to stabilize the phase drift in the interferometer. A single-photon net visibility of 0.97 is obtained, yielding future possibilities for experimental realizations of quantum repeaters in optical fibers, and violation of Bell's inequalities using genuine energy-time entanglement

G. B. Xavier; J. P. von der Weid

2011-04-14T23:59:59.000Z

Note: This page contains sample records for the topic "analysis icp interference" 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

Opto-electronic device for frequency standard generation and terahertz-range optical demodulation based on quantum interference  

DOE Patents (OSTI)

An opto-electronic system and technique for comparing laser frequencies with large frequency separations, establishing new frequency standards, and achieving phase-sensitive detection at ultra high frequencies. Light responsive materials with multiple energy levels suitable for multi-photon excitation are preferably used for nonlinear mixing via quantum interference of different excitation paths affecting a common energy level. Demodulation of a carrier with a demodulation frequency up to 100's THZ can be achieved for frequency comparison and phase-sensitive detection. A large number of materials can be used to cover a wide spectral range including the ultra violet, visible and near infrared regions. In particular, absolute frequency measurement in a spectrum from 1.25 .mu.m to 1.66 .mu.m for fiber optics can be accomplished with a nearly continuous frequency coverage.

Georgiades, Nikos P. (Pasadena, CA); Polzik, Eugene S. (H.o slashed.jbjerg, DK); Kimble, H. Jeff (LaCanada, CA)

1999-02-02T23:59:59.000Z

242

Sensitive frequency dependence of the carrier-envelope phase effect on bound-bound transitions: An interference perspective  

SciTech Connect

We investigate numerically with Hylleraas coordinates the frequency dependence of the carrier-envelope phase (CEP) effect on bound-bound transitions of helium induced by an ultrashort laser pulse of a few cycles. We find that the CEP effect is very sensitive to the carrier frequency of the laser pulse, occurring regularly even at far-off-resonance frequencies. By analyzing a two-level model, we find that the CEP effect can be attributed to the quantum interference between neighboring multiphoton transition pathways, which is made possible by the broadened spectrum of the ultrashort laser pulse. A general picture is developed along this line to understand the sensitivity of the CEP effect to the laser's carrier frequency. Multilevel influence on the CEP effect is also discussed.

Peng Dian; Fu Panming; Wang Bingbing [Laboratory of Optical Physics, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190 (China); Wu Biao [International Center for Quantum Materials, Peking University, Beijing 100871 (China); Department of Physics, State Key Laboratory for Artificial Microstructures and Mesoscopic Physics, Peking University, Beijing 100871 (China); Gong Jiangbin [Department of Physics and Center of Computational Science and Engineering, National University of Singapore, Singapore 117542 (Singapore); Yan Zongchao [Department of Physics, University of New Brunswick, P.O. Box 4400, Fredericton, New Brunswick, Canada E3B 5A3 (Canada)

2010-11-15T23:59:59.000Z

243

Nanometer Resolution Of Three-Dimensional Motions Using Video Interference Microscopy  

E-Print Network (OSTI)

An interferometric video system for measuring microelectromechanical systems (MEMS) with nanometer resolution is demonstrated. Interferograms are generated by combining light reflected from the target with light reflected from a reference mirror. Motions are determined from sequences of stop-action interferograms obtained with stroboscopic illumination. The system was used to measure motions of a microfabricated accelerometer. In-plane motions were determined by analysis of brightfield images using gradient methods with subpixel resolution. Results are compared for brightfield images obtained by blocking light from the reference arm of the interferometer and for brightfield images reconstructed from interferograms. Out-of-plane motions are determined by analyzing interferograms obtained with different positions of the reference mirror. Results demonstrate nanometer resolution of in-plane motions and subnanometer resolution of out-of-plane motions. Introduction A major goal of this w...

W. Hemmert; M. S. Mermelstein; D. M. Freeman

1999-01-01T23:59:59.000Z

244

Post-selective two-photon interference from a continuous non-classical stream of photons emitted by a quantum dot  

E-Print Network (OSTI)

We report an electrically driven semiconductor single photon source capable of emitting photons with a coherence time of up to 400 ps under fixed bias. It is shown that increasing the injection current causes the coherence time to reduce and this effect is well explained by the fast modulation of a fluctuating environment. Hong-Ou-Mandel type two-photon interference using a Mach-Zehnder interferometer is demonstrated using this source to test the indistinguishability of individual photons by post-selecting events where two photons collide at a beamsplitter. Finally, we consider how improvements in our detection system can be used to achieve a higher interference visibility.

R. B. Patel; A. J. Bennett; K. Cooper; P. Atkinson; C. A. Nicoll; D. A. Ritchie; A. J. Shields

2008-04-11T23:59:59.000Z

245

Microsoft Word - ICP CX determinaton.doc  

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

2-001 2-001 SECTION A. Project Title: MFC - Sodium Processing Facility Tank System Resource Conservation and Recovery Act Closure SECTION B. Project Description The Sodium Process Facility tank systems and associated piping and components will be closed in compliance with the Hazardous Waste Management Act/Resource Conservation and Recovery Act (HWMA/RCRA) SPF/SSS Permit. The clean-closure action levels will be achieved by removal and/or decontaminating or treating waste residues in the SPF tanks systems and the SSS piping/components. The system and associated piping and components are located in the MFC- 799 and MFC-799A Facilities. The closure will ensure the HWMA units will not require further maintenance and controls after closure, minimize or eliminate any threats to human health and the environment, and post closure release of

246

Microsoft Word - ICP CX determinaton.doc  

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

with the Hazardous Waste Management ActResource Conservation and Recovery Act (HWMARCRA) SPFSSS Permit. The clean-closure action levels will be achieved by removal andor...

247

Data Collection Computers Instrument Control Program (ICP)  

Science Conference Proceedings (OSTI)

... once whenever a controller is connected to the instrument. ... used at the polarized beam instruments each have ... do not operate the controls by hand. ...

248

FCT Systems Analysis: Analysis Methodologies  

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

Analysis Methodologies to Analysis Methodologies to someone by E-mail Share FCT Systems Analysis: Analysis Methodologies on Facebook Tweet about FCT Systems Analysis: Analysis Methodologies on Twitter Bookmark FCT Systems Analysis: Analysis Methodologies on Google Bookmark FCT Systems Analysis: Analysis Methodologies on Delicious Rank FCT Systems Analysis: Analysis Methodologies on Digg Find More places to share FCT Systems Analysis: Analysis Methodologies on AddThis.com... Home Analysis Methodologies Resource Analysis Technological Feasibility & Cost Analysis Environmental Analysis Delivery Analysis Infrastructure Development & Financial Analysis Energy Market Analysis DOE H2A Analysis Scenario Analysis Quick Links Hydrogen Production Hydrogen Delivery Hydrogen Storage Fuel Cells Technology Validation

249

Evaluation of the reliability of blood pressure data transmission through an IEEE 802.11 link in the presence of IEEE 802.15.4 interference  

Science Conference Proceedings (OSTI)

Wireless sensors operating in unlicensed frequency bands have been proposed for monitoring physiological signals during surgical procedures in the operating room (OR). The IEEE 802.15.4/ZigBee wireless interface in the 2.4 GHz industrial-scientific-medical ... Keywords: IABP, ISM band, WiFi, ZigBee, interference, wireless sensors

R. Chávez-Santiago; K. Øyri; S. Støa; I. Balasingham; E. Fosse

2011-10-01T23:59:59.000Z

250

Anharmonic interference effects in potassium This article has been downloaded from IOPscience. Please scroll down to see the full text article.  

E-Print Network (OSTI)

to the coherent inelastic scattering of neutrons from a crystal arising from interference between its onePermanant address: Chalk River Nuclear Laboratories, Chalk River, Ontario, Canada. M.P.(F) 6/6---8 943 #12Q transferred to the crystal in the scattering event, by hQ = h(q + T) where T is the nearest vector

Glyde, Henry R.

251

CATHODES FOR LOW TEMPERATURE SOFC: ISSUES CONCERNING INTERFERENCE FROM INERT GAS ADSORPTION AND CHARGE TRANSFER  

DOE Green Energy (OSTI)

This report summarizes the work done on the project over the duration of the project, from October 1, 2002 through December 31, 2003, which includes a three month no-cost extension. Effort was directed in the following areas: (1) Fabrication of Sr-doped LaCoO3 (LSC) dense and porous samples. (2) Design and construction of a conductivity relaxation apparatus for the estimation of surface exchange coefficient, k{sub chem}, which depends on adsorption, and oxygen chemical diffusion coefficient, {tilde D}{sub 0}, the parameters which are thought to describe the cathodic activation polarization (overall charge transfer) in mixed ionic electronic conducting (MIEC) cathodes. (3) The measurement of and K{sub chem} and {tilde D}{sub 0} on LSC by conductivity relaxation, as a function of temperature and oxygen partial pressure, p{sub O{sub 2}}. (4) Fabrication of YSZ electrolyte discs with patterned LSM and LSC electrodes with three-phase boundary (TPB) length, l{sub TPB}, varying between 50 and 1200 cm{sup -1}. (5) The measurement of charge transfer resistance, R{sub ct}, and estimation of the charge transfer resistivity, {rho}{sub ct}, as a function of temperature and p{sub O{sub 2}}, and the incorporation of the adsorption step in the analysis. (6) Preliminary cell tests with oxidants having different inert gas diluents; N{sub 2}, Ar, and CO{sub 2}. Dense samples of LSC of thickness as small as 150 microns were fabricated by sintering followed by grinding. Porous samples of LSC were also fabricated wherein the porosity was {approx}30%. Both samples were used in conductivity relaxation experiments. Analysis of data from the dense samples gives both and k{sub chem} and {tilde D}{sub 0}, while that of porous samples gives k{sub chem}. It was observed that at a given temperature, k{sub chem} increases with increasing p{sub O{sub 2}}, while the {tilde D}{sub 0} is essentially a constant. The dependence of k{sub chem} on p{sub O{sub 2}} is attributed to the adsorption step. It was also observed that the porous samples gave a more accurate measurement of k{sub chem}, as the data were not influenced by {tilde D}{sub 0}. By contrast, the results on dense samples were influenced by {tilde D}{sub 0}, especially at lower temperatures. It is thus concluded that the use of porous samples is preferred for the measurement of k{sub chem}. In the case of composite electrodes, such as LSM + YSZ, the relevant parameters are the {rho}{sub ct} (or R{sub ct}) and the ionic resistivity of YSZ {rho}{sub i}, where 1/{rho}{sub ct} is analogous to k{sub chem} and 1/{rho}{sub i} is analogous to {tilde D}{sub 0}. LSM patterned electrodes were deposited on YSZ discs using photomicrolithography. The R{sub ct} was measured as a function of temperature and p{sub O{sub 2}}using complex impedance techniques, on samples with l{sub TPB} varying between 50 and 1200 cm{sup -1}. The plot of 1/R{sub ct} vs. l{sub TPB} was linear, consistent with the occurrence of charge transfer at TPB. Also, the data plotted on the assumption of dissociative adsorption was consistent with the model. The significance of the role of adsorption is discussed. Similar results were observed with LSC, indicating a similar role of adsorption. In the case of LSC, however, a significant transport of oxygen also occurs through the dense part of the electrode. Preliminary work was conducted on the testing of button cells with mixtures of O{sub 2} + N{sub 2}, O{sub 2} + Ar, and O{sub 2} + CO{sub 2} as oxidants, wherein the p{sub O{sub 2}} was varied between {approx}0.05 and {approx}1.0 atm. As expected, the results showed that the higher the p{sub O{sub 2}}, the better was the performance. In pure oxygen, the maximum power density at 800 C was {approx}2.9 W/cm{sup 2}. However, in 5% O{sub 2}, it was {approx}0.6 W/cm{sup 2}. This difference is attributed to adsorption, indicating that both charge transfer and adsorption needs to be addressed in order to improve cathode performance at lower temperatures and under high oxidant utilization (in low p{sub O{sub 2}} atmospheres). Data at low current dens

Anil V. Virkar

2004-05-05T23:59:59.000Z

252

Voltametric analysis apparatus and method  

DOE Patents (OSTI)

An apparatus and method are disclosed for electrochemical analysis of elements in solution. An auxiliary electrode a reference electrode and five working electrodes are positioned in a container containing a sample solution. The working electrodes are spaced apart evenly from each other and auxiliary electrode to minimize any inter-electrode interference that may occur during analysis. An electric potential is applied between auxiliary electrode and each of the working electrodes. Simultaneous measurements taken of the current flow through each of the working electrodes for each given potential in a potential range are used for identifying chemical elements present in sample solution and their respective concentrations. Multiple working electrodes enable a more positive identification to be made by providing unique data characteristic of chemical elements present in the sample solution.

Almon, A.C.

1991-12-31T23:59:59.000Z

253

Color space transformations for analysis and enhancement of ancient degraded manuscripts  

Science Conference Proceedings (OSTI)

In this paper we focus on ancient manuscripts, acquired in the RGB modality, which are degraded by the presence of complex background textures that interfere with the text of interest. Removing these artifacts is not trivial, especially with ancient ... Keywords: Color Channel Decorrelation, Color Space Transformations, document Analysis and Enhancement

A. Tonazzini

2010-09-01T23:59:59.000Z

254

Performance Analysis of DS Signal Code Acquisition Using the Matched Filter and the Median Filter  

Science Conference Proceedings (OSTI)

The theoretical analysis and simulation of the performance of a matched filter code acquisition structure with a median filter as the aiding device to cancel CW jamming in the AWGN channel is described. Both coherent and noncoherent structures are ... Keywords: interference cancellation, synchronization

J. Iinatti; P. Leppänen

1998-09-01T23:59:59.000Z

255

RFID Interference Test Procedures  

Science Conference Proceedings (OSTI)

... GHz. Active tags contain a power source (eg, battery) and permit higher read ranges and/or lower reader power. Passive ...

2010-10-05T23:59:59.000Z

256

Assessment of Partial Discharge and Electromagnetic Interference On-Line Testing of Turbine-Driven Generator Stator Winding Insulati on Systems  

Science Conference Proceedings (OSTI)

Partial discharge (PD) and electromagnetic interference (EMI) on-line testing have been promoted as means to assess the condition of turbine-driven generator stator winding insulation systems. Such test approaches offer clear advantages in avoiding prolonged generator shutdown for off-line tests and inspections. Although PD is a time-domain measurement and EMI measures activity with a frequency scan, both techniques still evaluate the same phenomenon -- high-frequency currents that flow as a result of el...

2003-03-03T23:59:59.000Z

257

Electromagnetic Pulse and Intentional Electromagnetic Interference (EMI) Threats to the Power Grid: Characterization of the Threat, Available Countermeasures, and Opportunities for Technology Research  

Science Conference Proceedings (OSTI)

In 2012, the Electric Power Research Institute (EPRI) researched and published a white paper that provided background and an introduction to the topic of electromagnetic attacks of various forms, including electromagnetic pulse (EMP), high altitude EMP (HEMP), and intentional electromagnetic interference (IEMI). That white paper was the first in a series of EPRI papers and reports that address the potential impacts of—and mitigation strategies for—various types of high-impact, ...

2013-12-22T23:59:59.000Z

258

Inductively coupled plasma spectrometry: Noise characteristics of aerosols, application of generalized standard additions method, and Mach disk as an emission source  

SciTech Connect

This dissertation is focused on three problem areas in the performance of inductively coupled plasma (ICP) source. The noise characteristics of aerosols produced by ICP nebulizers are investigated. A laser beam is scattered by aerosol and detected by a photomultiplier tube and the noise amplitude spectrum of the scattered radiation is measured by a spectrum analyzer. Discrete frequency noise in the aerosol generated by a Meinhard nebulizer or a direct injection nebulizer is primarily caused by pulsation in the liquid flow from the pump. A Scott-type spray chamber suppresses white noise, while a conical, straight-pass spray chamber enhances white noise, relative to the noise seen from the primary aerosol. Simultaneous correction for both spectral interferences and matrix effects in ICP atomic emission spectrometry (AES) can be accomplished by using the generalized standard additions method (GSAM). Results obtained with the application of the GSAM to the Perkin-Elmer Optima 3000 ICP atomic emission spectrometer are presented. The echelle-based polychromator with segmented-array charge-coupled device detectors enables the direct, visual examination of the overlapping lines Cd (1) 228.802 nm and As (1) 228.812 nm. The slit translation capability allows a large number of data points to be sampled, therefore, the advantage of noise averaging is gained. An ICP is extracted into a small quartz vacuum chamber through a sampling orifice in a water-cooled copper plate. Optical emission from the Mach disk region is measured with a new type of echelle spectrometer equipped with two segmented-array charge-coupled-device detectors, with an effort to improve the detection limits for simultaneous multielement analysis by ICP-AES.

Shen, Luan

1995-10-06T23:59:59.000Z

259

A method for estimating common cause failure probability and model parameters : the inverse stress-strength interference (ISSI) technique  

E-Print Network (OSTI)

In this study, an alternative for the analysis of common cause failures (CCFs) is investigated. The method studied consists of using the Licensee Event Report (LER) data to get single component failure probability and using ...

Guey, Ching Ning

1984-01-01T23:59:59.000Z

260

Vertically aligned GaN nanotubes - Fabrication and current image analysis  

Science Conference Proceedings (OSTI)

In this work, we present a one step formation method of nanotubes on GaN film, and then map out local current of nanotubes. GaN nanotubes were formed by inductively coupled plasma (ICP) etching and found that tops of these nanotubes were hexagonal with ... Keywords: C-AFM, FESEM, GaN, ICP, Nanotubes

Shang-Chao Hung; Yan-Kuin Su; Shoou-Jinn Chang; Y. H. Chen

2006-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "analysis icp interference" 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

Energy Analysis  

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

Energy analysis informs EERE decision-making by delivering analytical products in four main areas: Data Resources, Market Intelligence, Energy Systems Analysis, and Portfolio Impacts Analysis.

262

Observation of f-f' interference in $pi$$sup -$p $Yields$ K$sup -$K$sup +$n at 6 GeV/c  

SciTech Connect

Preliminary results from a study of $pi$$sup -$p $Yields$ K$sup -$K$sup +$n at 6 GeV/c with the Argonne Effective Mass Spectrometer are presented. The 100,000-event data sample shows a dramatic drop in the Y$sub 4$$sup 0$ moment of the K$sup -$K$sup +$ decay angular distribution at a K$sup -$K$sup +$ mass of 1500 MeV. This feature is interpreted as a result of f-f' interference, which can also explain the excess of D-wave cross section near 1450 MeV observed previously. (auth)

Pawlicki, A.J.; Ayres, D.S.; Diebold, R.; Kramer, S.L.; Wicklund, A.B.

1975-01-01T23:59:59.000Z

263

Ultrasonic Phased Array Assessment of the Interference Fit and Leak Path of the North Anna Unit 2 Control Rod Drive Mechanism Nozzle 63 with Destructive Validation  

SciTech Connect

The objective of this investigation was to evaluate the efficacy of ultrasonic testing (UT) for primary water leak path assessments of reactor pressure vessel (RPV) upper head penetrations. Operating reactors have experienced leakage when stress corrosion cracking of nickel-based alloy penetrations allowed primary water into the annulus of the interference fit between the penetration and the low-alloy steel RPV head. In this investigation, UT leak path data were acquired for an Alloy 600 control rod drive mechanism nozzle penetration, referred to as Nozzle 63, which was removed from the North Anna Unit 2 reactor when the RPV head was replaced in 2002. In-service inspection prior to the head replacement indicated that Nozzle 63 had a probable leakage path through the interference fit region. Nozzle 63 was examined using a phased-array UT probe with a 5.0-MHz, eight-element annular array. Immersion data were acquired from the nozzle inner diameter surface. The UT data were interpreted by comparing to responses measured on a mockup penetration with known features. Following acquisition of the UT data, Nozzle 63 was destructively examined to determine if the features identified in the UT examination, including leakage paths and crystalline boric acid deposits, could be visually confirmed. Additional measurements of boric acid deposit thickness and low-alloy steel wastage were made to assess how these factors affect the UT response. The implications of these findings for interpreting UT leak path data are described.

Crawford, Susan L.; Cinson, Anthony D.; MacFarlan, Paul J.; Hanson, Brady D.; Mathews, Royce

2012-08-01T23:59:59.000Z

264

Turbine-Generator Topics for Power Plant Engineers: Fundamentals of Electromagnetic Signature Analysis  

Science Conference Proceedings (OSTI)

Electromagnetic signature analysis (EMSA) is the process used to evaluate the electromagnetic interference (EMI) generated by abnormalities in almost any energized power plant equipment—from cable connections to broken rotor bars in a motor to the isolated phase bus and generator step-up transformer. EMSA will detect any defect that involves EMI, noise, arcing, corona, partial discharge, gap discharge, sparking or microsparking, or any combination of these.With EMSA, every signal ...

2013-02-15T23:59:59.000Z

265

Direct current superconducting quantum interference device spectrometer for pulsed nuclear magnetic resonance and nuclear quadrupole resonance at frequencies up to 5 MHz  

Science Conference Proceedings (OSTI)

A spectrometer based on a dc superconducting quantum interference device (SQUID) has been developed for the direct detection of nuclear magnetic resonance (NMR) or nuclear quadrupole resonance (NQR) at frequencies up to 5 MHz. The sample is coupled to the input coil of the niobium-based SQUID via a nonresonant superconducting circuit. The flux locked loop involves the direct offset integration technique with additional positive feedback in which the output of the SQUID is coupled directly to a low-noise preamplifier. Precession of the nuclear quadrupole spins is induced by a magnetic field pulse with the feedback circuit disabled; subsequently, flux locked operation is restored and the SQUID amplifies the signal produced by the nuclear free induction signal. The spectrometer has been used to detect {sup 27}Al NQR signals in ruby (Al{sub 2}O{sub 3}[Cr{sup 3+}]) at 359 and 714 kHz. {copyright} {ital 1996 American Institute of Physics.}

TonThat, D.M.; Clarke, J. [Department of Physics, University of , California (United States)]|[Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States)

1996-08-01T23:59:59.000Z

266

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

267

NREL: Energy Analysis - Market Analysis  

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

Market Analysis The laboratory's market analysis helps increase the use of renewable energy (RE) and energy efficiency (EE) technologies in the marketplace by providing strategic...

268

Pressure Transient Analysis and Production Analysis for New Albany Shale Gas Wells  

E-Print Network (OSTI)

Shale gas has become increasingly important to United States energy supply. During recent decades, the mechanisms of shale gas storage and transport were gradually recognized. Gas desorption was also realized and quantitatively described. Models and approaches special for estimating rate decline and recovery of shale gas wells were developed. As the strategy of the horizontal well with multiple transverse fractures (MTFHW) was discovered and its significance to economic shale gas production was understood, rate decline and pressure transient analysis models for this type of well were developed to reveal the well behavior. In this thesis, we considered a “Triple-porosity/Dual-permeability” model and performed sensitivity studies to understand long term pressure drawdown behavior of MTFHWs. A key observation from this study is that the early linear flow regime before interfracture interference gives a relationship between summed fracture half-length and permeability, from which we can estimate either when the other is known. We studied the impact of gas desorption on the time when the pressure perturbation caused by production from adjacent transference fractures (fracture interference time) and programmed an empirical method to calculate a time shift that can be used to qualify the gas desorption impact on long term production behavior. We focused on the field case Well A in New Albany Shale. We estimated the EUR for 33 wells, including Well A, using an existing analysis approach. We applied a unified BU-RNP method to process the one-year production/pressure transient data and performed PTA to the resulting virtual constant-rate pressure drawdown. Production analysis was performed meanwhile. Diagnosis plots for PTA and RNP analysis revealed that only the early linear flow regime was visible in the data, and permeability was estimated both from a model match and from the relationship between fracture halflength and permeability. Considering gas desorption, the fracture interference will occur only after several centuries. Based on this result, we recommend a well design strategy to increase the gas recovery factor by decreasing the facture spacing. The higher EUR of Well A compared to the vertical wells encourages drilling more MTFHWs in New Albany Shale.

Song, Bo

2010-08-01T23:59:59.000Z

269

Supplement Analysis for the Idaho High-Level Waste and Facilities Disposition Final Environmental Impact Statement  

Science Conference Proceedings (OSTI)

In October 2002, DOE issued the Idaho High-Level Waste and Facilities Disposition Final Environmental Impact Statement (Final EIS) (DOE 2002) that provided an analysis of the potential environmental consequences of alternatives/options for the management and disposition of Sodium Bearing Waste (SBW), High-Level Waste (HL W) calcine, and HLW facilities at the Idaho Nuclear Technology and Engineering Center (INTEC) located at the Idaho National Engineering and Environmental Laboratory (INEEL), now known as the Idaho National Laboratory (INL) and referred to hereafter as the Idaho Site. Subsequent to the issuance of the Final EIS, DOE included the requirement for treatment of SBW in the Request for Proposals for Environmental Management activities on the Idaho Site. The new Idaho Cleanup Project (ICP) Contractor identified Steam Reforming as their proposed method to treat SBW; a method analyzed in the Final EIS as an option to treat SBW. The proposed Steam Reforming process for SBW is the same as in the Final EIS for retrieval, treatment process, waste form and transportation for disposal. In addition, DOE has updated the characterization data for both the HLW Calcine (BBWI 2005a) and SBW (BBWI 2004 and BBWI 2005b) and identified two areas where new calculation methods are being used to determine health and safety impacts. Because of those changes, DOE has prepared this supplement analysis to determine whether there are ''substantial changes in the proposed action that are relevant to environmental concerns'' or ''significant new circumstances or information'' within the meaning of the Council of Environmental Quality and DOE National Environmental Policy Act (NEPA) Regulations (40 CFR 1502.9 (c) and 10 CFR 1021.314) that would require preparation of a Supplemental EIS. Specifically, this analysis is intended to determine if: (1) the Steam Reforming Option identified in the Final EIS adequately bounds impacts from the Steam Reforming Process proposed by the new ICP Contractor using the new characterization data, (2) the new characterization data is significantly different than the data presented in the Final EIS, (3) the new calculation methods present a significant change to the impacts described in the Final EIS, and (4) would the updated characterization data cause significant changes in the environmental impacts for the action alternatives/options presented in the Final EIS. There are no other aspects of the Final EIS that require additional review because DOE has not identified any additional new significant circumstances or information that would warrant such a review.

N /A

2005-06-30T23:59:59.000Z

270

Data Analysis  

Science Conference Proceedings (OSTI)

... Request a Speaker; Become An Examiner. Data Analysis. Blinded Scoring Data for Baldrige Award Applicants 1990-2006. ...

2013-07-19T23:59:59.000Z

271

Hydrogen Analysis  

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

A A H2A: Hydrogen Analysis Margaret K. Mann DOE Hydrogen, Fuel Cells, and Infrastructure Technologies Program Systems Analysis Workshop July 28-29, 2004 Washington, D.C. H2A Charter * H2A mission: Improve the transparency and consistency of approach to analysis, improve the understanding of the differences among analyses, and seek better validation from industry. * H2A was supported by the HFCIT Program H2A History * First H2A meeting February 2003 * Primary goal: bring consistency & transparency to hydrogen analysis * Current effort is not designed to pick winners - R&D portfolio analysis - Tool for providing R&D direction * Current stage: production & delivery analysis - consistent cost methodology & critical cost analyses * Possible subsequent stages: transition analysis, end-point

272

Time-resolved measurement of the quantum states of photons using two-photon interference with short-time reference pulses  

SciTech Connect

To fully utilize the energy-time degree of freedom of photons for optical quantum-information processes, it is necessary to control and characterize the temporal quantum states of the photons at extremely short time scales. For measurements of the temporal coherence of the quantum states beyond the time resolution of available detectors, two-photon interference with a photon in a short-time reference pulse may be a viable alternative. In this paper, we derive the temporal measurement operators for the bunching statistics of a single-photon input state with a photon from a weak coherent reference pulse. It is shown that the effects of the pulse shape of the reference pulse can be expressed in terms of a spectral filter selecting the bandwidth within which the measurement can be treated as an ideal projection on eigenstates of time. For full quantum tomography, temporal coherence can be determined by using superpositions of reference pulses at two different times. Moreover, energy-time entanglement can be evaluated based on the two-by-two entanglement observed in the coherences between pairs of detection times.

Ren Changliang; Hofmann, Holger F. [Graduate School of Advanced Sciences of Matter, Hiroshima University, Kagamiyama 1-3-1, Higashi Hiroshima 739-8530 (Japan) and JST, CREST, Sanbancho 5, Chiyoda ku, Tokyo 102-0075 (Japan)

2011-09-15T23:59:59.000Z

273

Performance Study of Hybrid DS/FFH Spread-Spectrum Systems in the Presence of Frequency-Selective Fading and Multiple-Access Interference  

SciTech Connect

Hybrid spread-spectrum (HSS) systems have recently received considerable interest in commercial, Smart Grid, and military communication systems because they accommodate high data rates with high link integrity, even in the presence of significant multipath effects and interfering signals. A highly useful form of this modulation scheme is the specific code-related combination of standard direct-sequence spread spectrum (DSSS) with fast frequency-hopping (FFH) spread spectrum, denoted hybrid DS/FFH, wherein multiple frequency hops occur within a single data-bit time. In this paper we perform a simulation-based study of the DS/FFH performance as compared to the existing standard DSSS and FHSS wireless networks. The performance metrics are bit-error probability and multiple-access capability. The parameter space of DS/FFH, including the DS spreading rate, frequency hopping rate, carrier frequencies, and numbers of users, is explored to show its performance under frequency-selective Rayleigh fading environments and multiuser interference. Direct digital synthesizers to achieve fast hopping speeds are also considered in our study.

Olama, Mohammed M [ORNL; Smith, Stephen Fulton [ORNL; Kuruganti, Phani Teja [ORNL; Ma, Xiao [ORNL

2012-01-01T23:59:59.000Z

274

Energy Analysis  

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

power lines, solar PV panels, wind turbines, urban skyline, globe Energy Analysis Generating and interpreting information to inform a wide range of stakeholders, including...

275

Analysis Tools  

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

Genome Channel Generation GRAIL GRAILEXP Pipeline Domain Parser Prospect MIRA Analysis Tools We are the Computational Biology and Bioinformatics Group of the Biosciences Division...

276

Film Formation and Interference Techniques  

Science Conference Proceedings (OSTI)

Table 6   Beraha's selenic acid reagents...reagents Reagent Composition Comments 1 100 mL ethanol 2 mL HCl 1 mL selenic

277

NREL: Energy Analysis - Policy Analysis  

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

policy analysis evaluates policies that can advance-or provide alternatives to-renewable energy technologies in meeting national goals. Federal Policy NREL's federal policy team...

278

SUPPLEMENT ANALYSIS  

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

Supplement Analysis 1 October 2013 Supplement Analysis 1 October 2013 SUPPLEMENT ANALYSIS for the FINAL ENVIRONMENTAL ASSESSMENT for NECO (FORMERLY HAXTUN) WIND ENERGY PROJECT LOGAN AND PHILLIPS COUNTIES, COLORADO U. S. Department of Energy Office of Energy Efficiency and Renewable Energy Golden Field Office and U.S. Department of Energy Western Area Power Administration Rocky Mountain Customer Service Region OCTOBER 2013 DOE/EA-1812/SA-1 DOE/EA-1812 Supplement Analysis 2 October 2013 SUPPLEMENT ANALYSIS for the FINAL ENVIRONMENTAL ASSESSMENT for NECO (FORMERLY HAXTUN) WIND ENERGY PROJECT LOGAN AND PHILLIPS COUNTIES, COLORADO U. S. Department of Energy Office of Energy Efficiency and Renewable Energy Golden Field Office and U.S. Department of Energy Western Area Power Administration

279

SUPPLEMENT ANALYSIS  

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

812 Supplement Analysis 1 October 2013 812 Supplement Analysis 1 October 2013 SUPPLEMENT ANALYSIS for the FINAL ENVIRONMENTAL ASSESSMENT for NECO (FORMERLY HAXTUN) WIND ENERGY PROJECT LOGAN AND PHILLIPS COUNTIES, COLORADO U. S. Department of Energy Office of Energy Efficiency and Renewable Energy Golden Field Office and U.S. Department of Energy Western Area Power Administration Rocky Mountain Customer Service Region OCTOBER 2013 DOE/EA-1812/SA-1 DOE/EA-1812 Supplement Analysis 2 October 2013 SUPPLEMENT ANALYSIS for the FINAL ENVIRONMENTAL ASSESSMENT for NECO (FORMERLY HAXTUN) WIND ENERGY PROJECT LOGAN AND PHILLIPS COUNTIES, COLORADO U. S. Department of Energy Office of Energy Efficiency and Renewable Energy Golden Field Office and U.S. Department of Energy Western Area Power Administration

280

Microsoft Word - ICP-10-010webpost.doc  

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

10 10 SECTION A. Project Title: INTEC - Light Water Breeder Reactor Fuel Rods Loading for Disposal SECTION B. Project Description The proposed action will transfer drums of low-level waste to a transportation cask in the Weather/Decon Enclosure at the Idaho CERCLA Disposal Facility (ICDF). The U233 waste in this waste stream consists of 64 drums of unirradiated fabricated single rods consisting of U0 2 /ThO 2 fuel pellets in zirconium rods and one drum with two short rods and miscellaneous bagged pellets. The waste was generated during the development of the Light Water Breeder Reactor (LWBR) during the 1970's. The waste was received from the Bettis Atomic Power Laboratory from late 1980 to early 1981. The drums will be loaded into the 10-160B Cask for disposal at the

Note: This page contains sample records for the topic "analysis icp interference" 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

Microsoft Word - ICP-10-010webpost.doc  

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

10 10 SECTION A. Project Title: INTEC - Light Water Breeder Reactor Fuel Rods Loading for Disposal SECTION B. Project Description The proposed action will transfer drums of low-level waste to a transportation cask in the Weather/Decon Enclosure at the Idaho CERCLA Disposal Facility (ICDF). The U233 waste in this waste stream consists of 64 drums of unirradiated fabricated single rods consisting of U0 2 /ThO 2 fuel pellets in zirconium rods and one drum with two short rods and miscellaneous bagged pellets. The waste was generated during the development of the Light Water Breeder Reactor (LWBR) during the 1970's. The waste was received from the Bettis Atomic Power Laboratory from late 1980 to early 1981. The drums will be loaded into the 10-160B Cask for disposal at the

282

Microsoft Word - ICP-12-010webpost.doc  

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

2-004 2-004 SECTION A. Project Title: INTEC - Suspect RH-TRU (AMWTP) SECTION B. Project Description The proposed action involves transferring suspect remote-handled transuranic (RH-TRU) waste containers from the Advanced Mixed Waste Treatment Project (AMWTP) to the Idaho Nuclear Technology and Engineering Center (INTEC). The suspect containers will be opened and inspected for RH-TRU. All non-RH-TRU (i.e. low level waste, Contact Handled (CH)-TRU, secondary waste, etc.) materials will be returned to AMWTP. The identified RH-TRU waste will be repackaged as necessary and made ready for characterization and shipment to Waste Isolation Pilot Plant (WIPP). The specific steps are: ï‚· Transfer suspect RH-TRU waste containers from Radioactive Waste Management Complex (RWMC) to INTEC for

283

Microsoft Word - ICP-11-007webpost.doc  

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

7 7 SECTION A. Project Title: TRA-632 Hot Cell Drain Piping Clean Closure SECTION B. Project Description The proposed action will perform clean-closure of TRA-632 Hot Cell Drain Piping, which has been determined to be contaminated with transuranic (TRU) isotopes and RCRA hazardous waste (Hazardous Waste Numbers D006, D007, D008, and D009). The HWMA/RCRA Closure Plan for the TRA-632 Hot Cell Drain Piping - Voluntary Consent Order Action Plan VCO-5.8.d (DOE/ID-11434) was approved by the State of Idaho Department of Environmental Quality and defines the clean-closure activities. The TRA-632 Hot Cell Drain Piping clean-closure involves stabilizing, cutting, and disposing of the piping and ancillary equipment; as well as removing contaminated soil and collecting soil samples for use in a risk assessment to ensure the closure performance standards have been

284

Microsoft Word - ICP-11-005webpost.doc  

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

5 5 SECTION A. Project Title: INTEC - Tank Farm Closure Project SECTION B. Project Description The proposed action will continue to clean and close underground storage tanks located in the Tank Farm Facility (TFF) within the Idaho Nuclear Technology and Engineering Center (INTEC). The closure actions are part of approved Hazardous Waste Management Act/Resource Conservation and Recovery Act (HWMA/RCRA) Closure Plans. The TFF has been closed in phases based on available funding. The final phase is addressed in this document and is scheduled to be completed in October of 2015. The remaining scope includes decontaminating and grouting tanks, vaults, and some piping including the remaining cooling coils. The remaining four 300,000-gallon tanks (VES-WM-187, -188, -189, and -190) will be decontaminated and grouted. The tanks will be

285

Microsoft Word - ICP-13-004webpost.doc  

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

Activities SECTION B. Project Description Well management activities include decommissioning (abandonment) of inactive wells and injection wells at the Idaho National...

286

Microsoft Word - icp11001CXPostForm.doc  

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

compliance with federal, state, and local laws and regulations, and Department of Energy (DOE) Orders. Proposed activities will include, but not be limited to, the following: (a)...

287

Plutonium isotopic analysis of highly enriched mixed oxides  

SciTech Connect

We investigated the analysis method used by the International Atomic Energy Agency (IAEA) to determine the plutonium isotopic composition of highly enriched mixed oxides (MOX). The IAEA currently uses the Cicero multichannel analyzer and the IAEAPU algorithm for its analysis. In our investigation the plutonium isotopic measurements were found to be good for PuO/sub 2/ powder or low-enriched MOX, but acceptable for highly enriched MOX in IAEA special nuclear material (SNM) accountability applications. The gamma-ray interferences from /sup 235/U resulted in underestimation of the isotopic composition of /sup 239/Pu and overestimation of all other plutonium isotopes. Samples with high /sup 240/Pu content were found to have significantly higher error in plutonium isotopic analyses of highly enriched MOX. Code modifications or use of calibration curves are necessary for plutonium isotopic analyses of highly enriched MOX in IAEA SNM accountability applications.

Clement, S.D.; Augustson, R.H.

1986-08-01T23:59:59.000Z

288

EIS-0285-SA-451: Supplement Analysis | Department of Energy  

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

Supplement Analysis for the Transmission System Vegetation Management Supplement Analysis for the Transmission System Vegetation Management Program FEIS (DOE/EIS-0285/SA-451 Carlton-Tillamook Transmission Line Corridor, PP&A-2068) BPA proposes to remove tall growing and noxious vegetation from the ROW, structure sites and access roads that can potentially interfere with the operation, maintenance, and reliability of the transmission line. All vegetation management activities will be performed in accordance with the BPA Master Agreement Statement of Work for Vegetation Control on Bonneville Power Administration Transmission Line Rights-of-Way and in accordance with the specific details identified in the vegetation management checklist and detail/prescription sheet. EIS-0285-SA-451-2011.pdf More Documents & Publications

289

Independent Component Analysis for Filtering Airwaves in Seabed Logging Application  

E-Print Network (OSTI)

Marine controlled source electromagnetic (CSEM) sensing method used for the detection of hydrocarbons based reservoirs in seabed logging application does not perform well due to the presence of the airwaves (or sea-surface). These airwaves interfere with the signal that comes from the subsurface seafloor and also tend to dominate in the receiver response at larger offsets. The task is to identify these air waves and the way they interact, and to filter them out. In this paper, a popular method for counteracting with the above stated problem scenario is Independent Component Analysis (ICA). Independent component analysis (ICA) is a statistical method for transforming an observed multidimensional or multivariate dataset into its constituent components (sources) that are statistically as independent from each other as possible. ICA-type de-convolution algorithm that is FASTICA is considered for mixed signals de-convolution and considered convenient depending upon the nature of the source and noise model. The res...

Ansari, Adeel; Said, Abas B Md; Ansari, Seema

2013-01-01T23:59:59.000Z

290

Analysis of CZT crystals and detectors grown in Russia and the Ukraine by high-pressure Bridgman methods  

Science Conference Proceedings (OSTI)

Keywords: Cd1?0xZnxTe, ICP/MS, atomic force microscopy (AFM), gamma-ray detectors, proton-induced x-ray emission (PIXE), thermoelectric emission spectroscopy (TEES), x-ray diffraction (XRD)

H. Hermon; M. Schieber; R. B. James; E. Y. Lee; N. Yang; A. J. Antloak; D. H. Morse; C. Hackett; E. Tarver; N. N. P. Kolesnikov; Yu N. Ivanov; V. Komar; M. S. Goorsky; H. Yoon

1999-06-01T23:59:59.000Z

291

Technology Analysis  

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

* Heavy Vehicle Technologies * Heavy Vehicle Technologies * Multi-Path Transportation Futures * Idling Studies * EDrive Vehicle Monthly Sales Transportation Research and Analysis Computing Center Working With Argonne Contact TTRDC Technology Analysis truck Heavy vehicle techologies are one subject of study. Research Reducing Greenhouse Gas Emissions from U.S. Transportation Heavy Vehicle Technologies Multi-Path Transportation Futures Study Idling Studies Light Duty Electric Drive Vehicles Monthly Sales Updates Lithium-Ion Battery Recycling and Life Cycle Analysis Reports Propane Vehicles: Status, Challenges, and Opportunities (pdf; 525 kB) Natural Gas Vehicles: Status, Barriers, and Opportunities (pdf; 696 kB) Regulatory Influences That Will Likely Affect Success of Plug-in Hybrid and Battery Electric Vehicles (pdf; 1.02 MB)

292

Analysis of Glass Breakage  

Science Conference Proceedings (OSTI)

Analysis of a Bucketwheel Stacker Reclaimer Structural Failure · Analysis of Glass Breakage · Analysis of Sealed, Integrated, Automotive Wheel Bearings.

293

FCT Systems Analysis: Contacts  

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

Systems Analysis: Contacts on AddThis.com... Home Analysis Methodologies DOE H2A Analysis Scenario Analysis Quick Links Hydrogen Production Hydrogen Delivery Hydrogen Storage Fuel...

294

Next-to leading order analysis of target mass corrections to structure functions and asymmetries  

SciTech Connect

We perform a comprehensive analysis of target mass corrections (TMCs) to spin-averaged structure functions and asymmetries at next-to-leading order. Several different prescriptions for TMCs are considered, including the operator product expansion, and various approximations to it, collinear factorization, and xi-scaling. We assess the impact of each of these on a number of observables, such as the neutron to proton F{sub 2} structure function ratio, and parity-violating electron scattering asymmetries for protons and deuterons which are sensitive to gamma-Z interference effects. The corrections from higher order radiative and nuclear effects on the parity-violating deuteron asymmetry are also quantified.

L. T. Brady, A. Accardi, T. J. Hobbs, W. Melnitchouk

2011-10-01T23:59:59.000Z

295

Laser ablation-inductively coupled plasma-mass spectrometry: Examinations of the origins of polyatomic ions and advances in the sampling of particulates  

SciTech Connect

This dissertation provides a general introduction to Inductively coupled plasma-mass spectrometry (ICP-MS) and laser ablation (LA) sampling, with an examination of analytical challenges in the employment of this technique. It discusses the origin of metal oxide ions (MO+) in LA-ICP-MS, as well as the effect of introducing helium and nitrogen to the aerosol gas flow on the formation of these polyatomic interferences. It extends the study of polyatomic ions in LA-ICP-MS to metal argide (MAr+) species, an additional source of possible significant interferences in the spectrum. It describes the application of fs-LA-ICP-MS to the determination of uranium isotope ratios in particulate samples.

Witte, Travis

2011-11-30T23:59:59.000Z

296

Data Analysis  

Science Conference Proceedings (OSTI)

Analysis of the material protection, control, and accountability (MPC&A) system is necessary to understand the limits and vulnerabilities of the system to internal threats. A self-appraisal helps the facility be prepared to respond to internal threats and reduce the risk of theft or diversion of nuclear material. The material control and accountability (MC&A) system effectiveness tool (MSET) fault tree was developed to depict the failure of the MPC&A system as a result of poor practices and random failures in the MC&A system. It can also be employed as a basis for assessing deliberate threats against a facility. MSET uses fault tree analysis, which is a top-down approach to examining system failure. The analysis starts with identifying a potential undesirable event called a 'top event' and then determining the ways it can occur (e.g., 'Fail To Maintain Nuclear Materials Under The Purview Of The MC&A System'). The analysis proceeds by determining how the top event can be caused by individual or combined lower level faults or failures. These faults, which are the causes of the top event, are 'connected' through logic gates. The MSET model uses AND-gates and OR-gates and propagates the effect of event failure using Boolean algebra. To enable the fault tree analysis calculations, the basic events in the fault tree are populated with probability risk values derived by conversion of questionnaire data to numeric values. The basic events are treated as independent variables. This assumption affects the Boolean algebraic calculations used to calculate results. All the necessary calculations are built into the fault tree codes, but it is often useful to estimate the probabilities manually as a check on code functioning. The probability of failure of a given basic event is the probability that the basic event primary question fails to meet the performance metric for that question. The failure probability is related to how well the facility performs the task identified in that basic event over time (not just one performance or exercise). Fault tree calculations provide a failure probability for the top event in the fault tree. The basic fault tree calculations establish a baseline relative risk value for the system. This probability depicts relative risk, not absolute risk. Subsequent calculations are made to evaluate the change in relative risk that would occur if system performance is improved or degraded. During the development effort of MSET, the fault tree analysis program used was SAPHIRE. SAPHIRE is an acronym for 'Systems Analysis Programs for Hands-on Integrated Reliability Evaluations.' Version 1 of the SAPHIRE code was sponsored by the Nuclear Regulatory Commission in 1987 as an innovative way to draw, edit, and analyze graphical fault trees primarily for safe operation of nuclear power reactors. When the fault tree calculations are performed, the fault tree analysis program will produce several reports that can be used to analyze the MPC&A system. SAPHIRE produces reports showing risk importance factors for all basic events in the operational MC&A system. The risk importance information is used to examine the potential impacts when performance of certain basic events increases or decreases. The initial results produced by the SAPHIRE program are considered relative risk values. None of the results can be interpreted as absolute risk values since the basic event probability values represent estimates of risk associated with the performance of MPC&A tasks throughout the material balance area (MBA). The RRR for a basic event represents the decrease in total system risk that would result from improvement of that one event to a perfect performance level. Improvement of the basic event with the greatest RRR value produces a greater decrease in total system risk than improvement of any other basic event. Basic events with the greatest potential for system risk reduction are assigned performance improvement values, and new fault tree calculations show the improvement in total system risk. The ope

Powell, Danny H [ORNL; Elwood Jr, Robert H [ORNL

2011-01-01T23:59:59.000Z

297

Collection and Analysis of Reservoir Data from Testing and Operation of the  

Open Energy Info (EERE)

Collection and Analysis of Reservoir Data from Testing and Operation of the Collection and Analysis of Reservoir Data from Testing and Operation of the Raft River 5 MW Power Plant Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: Collection and Analysis of Reservoir Data from Testing and Operation of the Raft River 5 MW Power Plant Details Activities (1) Areas (1) Regions (0) Abstract: The Raft River 5 MW power plant will be on-line some time this spring. During testing of the supply and injection system prior to plant start-up and during testing of the plant itself, data can be collected and used to calibrate computer models, refine predicted drawdowns and interference effects, monitor changing temperatures, and recalculate reservoir parameters. Analytic methods have been used during reservoir testing at Raft River to calculate reservoir coefficients. However,

298

Supplement Analysis  

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

Analysis Decommissioning of Eight Surplus Production Reactors at the Hanford Site, Richland, Washington U. S. Department of Energy Richland Operations Office Richland, Washington 99352 July 20 10 This page intentionally left blank. SUMMARY In December 1992, the U.S. Department of Energy (DOE) issued the Final Environmental Impact Statement (EIS) on Decommissioning of Eight Surplus Production Reactors at the Hanford Site, Richland, Washington (DOEIEIS-O119F). The Final EIS analyzed alternatives for decommissioning eight water-cooled, graphite-moderated plutonium-production reactors, located along the Columbia River in Washington State. The eight reactors (B, C, D, DR, F, H, KE and KW), operated between the years 1944 and 197 1, and have been retired from service. The alternatives analyzed in the EIS included the no-

299

Real-time chemical analysis of aerosol particles  

Science Conference Proceedings (OSTI)

An important aspect of environmental atmospheric monitoring requires the characterization of airborne microparticles and aerosols. Unfortunately, traditional sample collection and handling techniques are prone to contamination and interference effects that can render an analysis invalid. These problems can be avoided by using real-time atmospheric sampling techniques followed by immediate mass spectrometric analysis. The former is achieved in these experiments via a two state differential pumping scheme that is attached directly to a commercially available quadruple ion trap mass spectrometer. Particles produced by an external particle generator enter the apparatus and immediately pass through two cw laser/fiberoptic based detectors positioned two centimeters apart. Timing electronics measure the time between detection events, estimate the particles arrival in the center of the ion trap and control the firing of a YAG laser. Ions produced when the UV laser light ablates the particle`s surface are stored by the ion trap for mass analysis. Ion trap mass spectrometers have several advantages over conventional time-of-flight instruments. First, they are capable of MS/MS analysis by the collisional dissociation of a stored species, This permits complete chemical characterization of airborne samples. Second, ion traps are small and lend themselves to portable, field oriented applications.

Yang, M.; Whitten, W.B.; Ramsey, J.M.

1995-04-01T23:59:59.000Z

300

NREL: Energy Analysis - Geothermal Technology Analysis Models...  

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

Integration Energy Analysis Search More Search Options Site Map Printable Version Geothermal Technology Analysis Models and Tools The following is a list of models and tools...

Note: This page contains sample records for the topic "analysis icp interference" 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 - Geothermal Technology Analysis  

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

Integration Energy Analysis Search More Search Options Site Map Printable Version Geothermal Technology Analysis The Department of Energy's (DOE) Geothermal Energy Program...

302

Using Finite Element Analysis in Failure Analysis  

Science Conference Proceedings (OSTI)

Symposium, Charles R. Morin Memorial Symposium on Failure Analysis and ... Tools for Failure Event Database Management and Probability Risk Analysis for ...

303

DOE Hydrogen Analysis Repository: Infrastructure Analysis of...  

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

(HyDS-ME) Project ID: 258 Principal Investigator: Brian Bush Brief Description: This analysis uses the Scenario Evaluation and Regionalization Analysis (SERA) Model to...

304

NREL: Energy Analysis - Technology Systems Analysis  

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

Zhang Access more information on all of our Staff Analysts Printable Version Energy Analysis Home Capabilities & Expertise Technology Analysis Biomass Buildings Electric...

305

Energy-Efficient Power Control in Multipath CDMA Channels via Large System Analysis  

E-Print Network (OSTI)

This paper is focused on the design and analysis of power control procedures for the uplink of multipath code-division-multiple-access (CDMA) channels based on the large system analysis (LSA). Using the tools of LSA, a new decentralized power control algorithm aimed at energy efficiency maximization and requiring very little prior information on the interference background is proposed; moreover, it is also shown that LSA can be used to predict with good accuracy the performance and operational conditions of a large network operating at the equilibrium over a multipath channel, i.e. the power, signal-to-interference-plus-noise ratio (SINR) and utility profiles across users, wherein the utility is defined as the number of bits reliably delivered to the receiver for each energy-unit used for transmission. Additionally, an LSA-based performance comparison among linear receivers is carried out in terms of achieved energy efficiency at the equilibrium. Finally, the problem of the choice of the utility-maximizing tr...

Buzzi, Stefano; Poor, H Vincent

2008-01-01T23:59:59.000Z

306

Industrial electronics [Technology 2000 analysis and forecast  

Science Conference Proceedings (OSTI)

Energy savings and higher intelligence are hallmarks of today's highly competitive world of industrial automation. While power electronics devices and systems deliver ever more watts, they also contribute to electromagnetic interference (EMI), and users ...

G. Kaplan

2000-01-01T23:59:59.000Z

307

Uncertainty analysis  

SciTech Connect

An evaluation is made of the suitability of analytical and statistical sampling methods for making uncertainty analyses. The adjoint method is found to be well-suited for obtaining sensitivity coefficients for computer programs involving large numbers of equations and input parameters. For this purpose the Latin Hypercube Sampling method is found to be inferior to conventional experimental designs. The Latin hypercube method can be used to estimate output probability density functions, but requires supplementary rank transformations followed by stepwise regression to obtain uncertainty information on individual input parameters. A simple Cork and Bottle problem is used to illustrate the efficiency of the adjoint method relative to certain statistical sampling methods. For linear models of the form Ax=b it is shown that a complete adjoint sensitivity analysis can be made without formulating and solving the adjoint problem. This can be done either by using a special type of statistical sampling or by reformulating the primal problem and using suitable linear programming software.

Thomas, R.E.

1982-03-01T23:59:59.000Z

308

Surface Analysis  

DOE Green Energy (OSTI)

In the Surface Analysis group, within the National Center for Photovoltaic's Measurements and Characterization Division, we use surface analytical techniques help to determine the chemical, elemental, and molecular composition, and electronic structure of material surfaces and interfaces. The properties of the surface and outer few micrometers of a material often control the electrical, chemical, or mechanical properties of that material--hence, this region is of extreme importance. Our techniques use ions, electrons, and X-ray or ultraviolet photons in high vacuum to probe surfaces and interfaces of a material. We map the elemental and chemical composition of specimens, study impurities and grain boundaries, gather bonding and chemical-state information, measure surface electronic properties, and perform depth profiles to determine doping and elemental distributions. We have analyzed a wide range of materials, including photovoltaics, microelectronics, polymers, and biological specimens. We work collaboratively with you to solve materials- and device-related R&D problems. This sheet describes our major technique capabilities.

Not Available

2006-06-01T23:59:59.000Z

309

Hazard Analysis Database report  

Science Conference Proceedings (OSTI)

This document describes and defines the Hazard Analysis Database for the Tank Waste Remediation System Final Safety Analysis Report.

Niemi, B.J.

1997-08-12T23:59:59.000Z

310

Studies of selenium and xenon in inductively coupled plasma mass spectrometry  

SciTech Connect

Since its development, inductively coupled plasma mass spectrometry (ICP-MS) has been a widely used analytical technique. ICP-MS offers low detection limits, easy determination of isotope ratios, and simple mass spectra from analyte elements. ICP-MS has been successfully employed for many applications including geological, environmental, biological, metallurgical, food, medical, and industrial. One specific application important to many areas of study involves elemental speciation by using ICP-MS as an element specific detector interfaced to liquid chromatography. Elemental speciation information is important and cannot be obtained by atomic spectrometric methods alone which measure only the total concentration of the element present. Part 1 of this study describes the speciation of selenium in human serum by size exclusion chromatography (SEC) and detection by ICP-MS. Although ICP-MS has been widely sued, room for improvement still exists. Difficulties in ICP-MS include noise in the background, matrix effects, clogging of the sampling orifice with deposited solids, and spectral interference caused by polyatomic ions. Previous work has shown that the addition of xenon into the central channel of the ICP decreases polyatomic ion levels. In Part 2 of this work, a fundamental study involving the measurement of the excitation temperature is carried out to further understand xenon`s role in the reduction of polyatomic ions. 155 refs.

Bricker, T.

1994-07-27T23:59:59.000Z

311

Analysis Of Factors Affecting Natural Source Slf Electromagnetic...  

Open Energy Info (EERE)

sensor orientation and the received artificial electromagnetic interference, influence of weather conditions on the data quality and so on. The results showed that (1) There is an...

312

EIS-0285-SA-447: Supplement Analysis | Department of Energy  

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

roads that potentially interfere with the operation, maintenance, and reliability of the transmission line. EIS-0285-SA-447-2012.pdf More Documents & Publications EIS-0285-SA-452:...

313

Environment analysis via ?CFA  

Science Conference Proceedings (OSTI)

We describe a new program-analysis framework, based on CPS and procedure-string abstractions, that can handle critical analyses which the k-CFA framework cannot. We present the main theorems concerning correctness, show an application analysis, ... Keywords: CPS, continuations, delta-CFA, environment analysis, flow analysis, functional languages, inlining, lambda calculus, program analysis, super-beta

Matthew Might; Olin Shivers

2006-01-01T23:59:59.000Z

314

Documents: Cost Analysis  

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

Analysis Search Documents: Search PDF Documents View a list of all documents Cost Analysis PDF Icon Summary of the Cost Analysis Report for the Long-term Management of Depleted UF6...

315

Instrumentation of Gait Analysis.  

E-Print Network (OSTI)

?? This master’s thesis project “Instrumentation of Gait Analysis” was carried out at and funded by Integrum AB, Gothenburg, Sweden. Force analysis is critical during… (more)

Ma, Weizen

2010-01-01T23:59:59.000Z

316

Clean Energy Policy Analysis: Impact Analysis of Potential Clean...  

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

Clean Energy Policy Analysis: Impact Analysis of Potential Clean Energy Policy Options for the Hawaii Clean Energy Initiative Clean Energy Policy Analysis: Impact Analysis of...

317

NREL: Energy Analysis - Wind Technology Analysis  

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

Wind and Hydropower Technology Analysis Wind and Hydropower Technology Analysis Wind and hydropower analysis supports advanced technologies that convert more of the nation's wind into electricity. Grid Operational Impact Analysis The wind program will address the variable, normally uncontrollable nature of wind power plant output, and the additional needs that its operation imposes on the overall grid. At present, the generation and transmission operational impacts that occur due to wind variability are not well quantified. This research will include efforts to quantify and fairly allocate impacts in both an engineering and cost sense. Methods of analysis are at an early stage of development. Without realistic analysis and cost allocation, utilities tend to overestimate imposed operational costs,

318

1. Exploratory Data Analysis  

Science Conference Proceedings (OSTI)

1. Exploratory Data Analysis. This chapter presents the assumptions, principles, and techniques necessary to gain insight ...

2013-10-30T23:59:59.000Z

319

EERE: Energy Analysis Home Page  

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

Analysis Search Search Help Energy Analysis HOME ABOUT FEATURED CONTENT EERE Energy Analysis Printable Version Share this resource Send a link to EERE: Energy Analysis Home Page...

320

NREL: Energy Analysis - Energy Sciences Technology Analysis  

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

Energy Sciences Technology Analysis To help meet the nation's needs for clean energy, inexpensive alternative fuels, and a healthy environment, researchers in NREL's Energy...

Note: This page contains sample records for the topic "analysis icp interference" 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

DOE Hydrogen Analysis Repository: Transportation Routing Analysis...  

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

model can be used to complete the technoeconomic analysis of hydrogen delivery for the DOE Hydrogen Program by analyzing the highway transportation network to determine locations...

322

K Basin Hazard Analysis  

Science Conference Proceedings (OSTI)

This report describes the methodology used in conducting the K Basins Hazard Analysis, which provides the foundation for the K Basins Final Safety Analysis Report. This hazard analysis was performed in accordance with guidance provided by DOE-STD-3009-94, Preparation Guide for U. S. Department of Energy Nonreactor Nuclear Facility Safety Analysis Reports and implements the requirements of DOE Order 5480.23, Nuclear Safety Analysis Report.

PECH, S.H.

2000-08-23T23:59:59.000Z

323

RAPID FUSION METHOD FOR DETERMINATION OF PLUTONIUM ISOTOPES IN LARGE RICE SAMPLES  

Science Conference Proceedings (OSTI)

A new rapid fusion method for the determination of plutonium in large rice samples has been developed at the Savannah River National Laboratory (Aiken, SC, USA) that can be used to determine very low levels of plutonium isotopes in rice. The recent accident at Fukushima Nuclear Power Plant in March, 2011 reinforces the need to have rapid, reliable radiochemical analyses for radionuclides in environmental and food samples. Public concern regarding foods, particularly foods such as rice in Japan, highlights the need for analytical techniques that will allow very large sample aliquots of rice to be used for analysis so that very low levels of plutonium isotopes may be detected. The new method to determine plutonium isotopes in large rice samples utilizes a furnace ashing step, a rapid sodium hydroxide fusion method, a lanthanum fluoride matrix removal step, and a column separation process with TEVA Resin? cartridges. The method can be applied to rice sample aliquots as large as 5 kg. Plutonium isotopes can be determined using alpha spectrometry or inductively-coupled plasma mass spectrometry (ICP-MS). The method showed high chemical recoveries and effective removal of interferences. The rapid fusion technique is a rugged sample digestion method that ensures that any refractory plutonium particles are effectively digested. The MDA for a 5 kg rice sample using alpha spectrometry is 7E-5 mBq g{sup -1}. The method can easily be adapted for use by ICP-MS to allow detection of plutonium isotopic ratios.

Maxwell, S.

2013-03-01T23:59:59.000Z

324

NREL: Energy Analysis - Solar Technology Analysis  

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

Solar Technology Analysis Solar Technology Analysis NREL conducts analysis to support research and development done by the Solar Energy Technologies Program in three major technology areas: concentrating solar power; solar electricity, also known as photovoltaics or PV; and solar heating and lighting. For example, in the area of photovoltaics, EERE's systems modeling and analysis activity rigorously assesses the performance, reliability, installed costs, and levelized energy costs (LECs) of a wide variety of flat-plate PV system configurations and applications. R&D goals, which are supported by solar technology analysis, include: Investigating the steps needed to improve the impact of PV technologies in the marketplace through technical R&D, market analyses, and value and policy analyses

325

NREL: Energy Analysis: Analysis of Project Finance  

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

Analysis of Project Finance Analysis of Project Finance NREL analysis helps potential renewable energy developers and investors gain insights into the complex world of project finance. Renewable energy project finance is complex, requiring knowledge of federal tax credits, state-level incentives, renewable attribute markets, renewable technology installation and operation costs, and many other site-specific considerations. NREL conducts research, performs analysis, and produces reports and analysis tools on: Project-level finance (terms, structures, and innovations) Renewable energy financial policies such as feed-in tariffs, clean renewable energy bonds, and power purchase agreements State-of-the-market for renewable technologies High renewable penetration scenarios A map showing the dollar (millions) amount of Federal Section 1603 awards.

326

Role of Analysis  

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

Systems Analysis Workshop Systems Analysis Workshop Steve Chalk July 28, 2004 Systems Analysis * Why Systems Analysis is important to the DOE Hydrogen Program * Impact of the NRC Report * New positions and concepts - Technology Analyst - Systems Integration - Also, Chief Engineer) Analysis Roles & Responsibilities * Develop Analysis Agenda (including technical and time pathways) * Develop, maintain, resolve consistent data sets/info and standard analysis assumptions and guidelines * Provide independent analysis (policy-related issues, Go/No-Go recommendations, H2 in the context of larger energy markets, etc.) * Ensure tools/models are developed, maintained, available, validated * Provide independent review of analysis results * User and/or requestor of info generated by TA (especially from other parts of DOE)

327

Systems Analysis Workshop Purpose  

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

National Renewable Energy Laboratory National Renewable Energy Laboratory DOE Hydrogen Program DOE Hydrogen Program Systems Analysis Workshop Systems Analysis Workshop Systems Integration Production Delivery Conversion Application Education Codes & Standards Safety Tech Validation Storage Systems Integration Production Delivery Conversion Application Education Codes & Standards Safety Tech Validation Storage Washington D.C. 28-29 Jul 04 Dale Gardner Systems Integration Operated for the U.S. Department of Energy by Midwest Research Institute * Battelle 2 Systems Analysis Workshop Topics * Meeting Goals * Systems Integration * Roles/Responsibilities of Analysis Participants * Systems Analysis * From this Workshop * Capability Presentations 3 Systems Analysis Workshop Meeting Goals 1) Understand the roles and activities of the DOE Technology Analyst,

328

Semiconductor devices incorporating multilayer interference regions  

DOE Patents (OSTI)

A semiconductor high reflector comprising a number of thin alternating layers of semiconductor materials is electrically tunable and may be used as a temperature insensitive semiconductor laser in a Fabry-Perot configuration. 8 figs.

Biefeld, R.M.; Drummond, T.J.; Gourley, P.L.; Zipperian, T.E.

1987-08-31T23:59:59.000Z

329

Electromagnetic Interference Emission Measurements Near FACTS Devices  

Science Conference Proceedings (OSTI)

The expanded application of flexible AC transmission system (FACTS) technology to electric transmission and distribution systems frequently provides the best means of ensuring the needed levels of capacity and reliability. This final report provides a detailed look at the electromagnetic emissions from three tested FACTS systems. The report provides equipment immunity requirements from several potentially applicable standards, along with immunity data for nationwide differential global positioning system...

2003-03-11T23:59:59.000Z

330

Electromagnetic Interference Emission Measurements Near FACTS Devices  

Science Conference Proceedings (OSTI)

The expanded application of flexible AC transmission system (FACTS) technology to the electric transmission and distribution systems frequently provides the best means of insuring the needed levels of capacity and reliability. This interim report provides a detailed look at the electromagnetic emissions from the first two FACTS systems tested. Equipment immunity requirements from several potentially applicable standards are provided along with immunity data for nationwide differential global positioning ...

2002-12-13T23:59:59.000Z

331

Tobacco Industry Interference with Tobacco Control  

E-Print Network (OSTI)

143. Bero L. Tobacco industry manipulation of research.Glantz SA. German tobacco industry’s successful efforts toBarnoya J, Glantz S. Tobacco industry success in preventing

World Health Organization

2009-01-01T23:59:59.000Z

332

Interference aware bluetooth packet scheduling - Global ...  

Science Conference Proceedings (OSTI)

... operates in the ISM frequency band starting at 2.402 ... 79 RF channels of 1 MHz width are defined. ... There are 3 slaves in the topology and they are ...

2009-02-03T23:59:59.000Z

333

Flow interference in bluff body wakes  

Science Conference Proceedings (OSTI)

This paper presents a two-dimensional numerical simulation of fluid flow around a couple of identical circular cylinders aligned, respectively, along and orthogonal to the main-flow direction, at several distances. A lattice-Boltzmann method (LB) is ...

Rodrigo Surmas; Luís Orlando Emerich Dos Santos; Paulo Cesar Philippi

2003-06-01T23:59:59.000Z

334

Electromagnetic interference filter for automotive electrical systems  

DOE Patents (OSTI)

A filter for an automotive electrical system includes a substrate having first and second conductive members. First and second input terminals are mounted to the substrate. The first input terminal is electrically connected to the first conductive member, and the second input terminal is electrically connected to the second conductive member. A plurality of capacitors are mounted to the substrate. Each of the capacitors is electrically connected to at least one of the first and second conductive members. First and second power connectors are mounted to the substrate. The first power connector is electrically connected to the first conductive member, and the second power connector is electrically connected to the second conductive member. A common mode choke is coupled to the substrate and arranged such that the common mode choke extends around at least a portion of the substrate and the first and second conductive members.

Herron, Nicholas Hayden; Carlson, Douglas S; Tang, David; Korich, Mark D

2013-07-02T23:59:59.000Z

335

Feedback and Interference Alignment in Networks  

E-Print Network (OSTI)

May 2011. [63] Ravi Tandon and Sennur Ulukus. DependenceIC; Kramer-Gastpar [27] and Tandon-Ulukus [63] derived outer

Suh, Changho

2011-01-01T23:59:59.000Z

336

Mitigation techniques for severe narrowband interference  

E-Print Network (OSTI)

root raised cosine pulse, g rrc (t) de?ned [123, p.165] as? ?)?t/T s ] / (4?t/T s ) g rrc (t) = ? ? T s 1 ? (4?t/T s )cosine is unit norm and g rrc (0) is normalized to unity. To

Batra, Arun

2009-01-01T23:59:59.000Z

337

TWO-PHOTON INTERFERENCE USING BACKGROUND ...  

Science Conference Proceedings (OSTI)

... OF SINGLE PHOTONS FROM A SEMICONDUCTOR QUANTUM DOT. ... material systems, self-assembled semiconductor quantum dots (QDs) have ...

338

Raman observations of quantum interference in the $\  

E-Print Network (OSTI)

Coherent anti-Stokes Raman spectra (CARS) were obtained for CO$_2$ in a positive column discharge. The intensities of the Raman transitions to the $\

McCluskey, C W; Cluskey, Craig W. Mc; Stoker, David S.

2006-01-01T23:59:59.000Z

339

FCT Systems Analysis: DOE H2A Analysis  

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

H2A Analysis to someone by H2A Analysis to someone by E-mail Share FCT Systems Analysis: DOE H2A Analysis on Facebook Tweet about FCT Systems Analysis: DOE H2A Analysis on Twitter Bookmark FCT Systems Analysis: DOE H2A Analysis on Google Bookmark FCT Systems Analysis: DOE H2A Analysis on Delicious Rank FCT Systems Analysis: DOE H2A Analysis on Digg Find More places to share FCT Systems Analysis: DOE H2A Analysis on AddThis.com... Home Analysis Methodologies DOE H2A Analysis Scenario Analysis Quick Links Hydrogen Production Hydrogen Delivery Hydrogen Storage Fuel Cells Technology Validation Manufacturing Codes & Standards Education Contacts DOE H2A Analysis Realistic assumptions, both market- and technology-based, are critical to an accurate analytical study. DOE's H2A Analysis Group develops the

340

Buildings Sector Analysis  

DOE Green Energy (OSTI)

A joint NREL, ORNL, and PNNL team conducted market analysis to help inform DOE/EERE's Weatherization and Intergovernmental Program planning and management decisions. This chapter presents the results of the market analysis for the Buildings sector.

Hostick, Donna J.; Nicholls, Andrew K.; McDonald, Sean C.; Hollomon, Jonathan B.

2005-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "analysis icp interference" 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

Multivariate Recurrence Analysis  

Science Conference Proceedings (OSTI)

Recurrence analysis was introduced to infer the degree of separation between a “control” and an “anomaly” ensemble of, say, seasonal means simulated in general circulation model (GCM) experiments. The concept of recurrence analysis is described ...

Francis W. Zwiers; Hans von Storch

1989-12-01T23:59:59.000Z

342

Buildings Sector Analysis  

SciTech Connect

A joint NREL, ORNL, and PNNL team conducted market analysis to help inform DOE/EERE's Weatherization and Intergovernmental Program planning and management decisions. This chapter presents the results of the market analysis for the Buildings sector.

Hostick, Donna J.; Nicholls, Andrew K.; McDonald, Sean C.; Hollomon, Jonathan B.

2005-08-01T23:59:59.000Z

343

Beyond Homogeneity Analysis  

E-Print Network (OSTI)

Component Analysis with B-splines by Means of Alter- natingComponent Analysis Using B-Splines. Methods of Operationsextension is played by the “B-spline basis”, which is intro-

Jan de Leeuw

2011-01-01T23:59:59.000Z

344

Beyond Homogeneity Analysis  

E-Print Network (OSTI)

Component Analysis with B-splines by Means of Alter- natingComponent Analysis Using B-Splines. Methods of Operationsextension is played by the “B-spline basis”, which is intro-

de Leeuw, Jan

2009-01-01T23:59:59.000Z

345

Office of Analysis  

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

Analysis (SESA) SESA Home Mission & Functions Office of Sustainability, Environment, Safety and Anaylsis (SESA) Sustainability Support Environmental Policy & Assistance ...

346

Hydrogen Analysis Group  

DOE Green Energy (OSTI)

NREL factsheet that describes the general activites of the Hydrogen Analysis Group within NREL's Hydrogen Technologies and Systems Center.

Not Available

2008-03-01T23:59:59.000Z

347

Materials Analysis - TMS  

Science Conference Proceedings (OSTI)

Mar 17, 2004 ... 2004 TMS Annual Meeting & Exhibition: Materials Analysis: Understanding ... with the leading failure scenario based on visual observations.

348

Sensitivity and Uncertainty Analysis  

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

Summary Notes from 15 November 2007 Generic Technical Issue Discussion on Sensitivity and Uncertainty Analysis and Model Support

349

The Value Analysis Process  

Science Conference Proceedings (OSTI)

...T.C. Fowler, Value Analysis in Materials Selection and Design, Materials Selection and Design, Vol 20, ASM Handbook,

350

Diesel Engine Analysis Guide  

Science Conference Proceedings (OSTI)

This guide provides a thorough background on diesel engine analysis including combustion, vibration, and ultrasonic analysis theory. Interpretation of results is also provided. This guide is intended to enable nuclear utility personnel to make informed decisions regarding the nature and use of diesel engine analysis, including how to set up an effective program, how to establish analysis guidelines, how to make use of the resulting data to plan maintenance, determine the causes of off-design operating co...

1997-10-09T23:59:59.000Z

351

Market Analysis - Center for Transportation Analysis  

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

Market Analysis Market Analysis Annual market reports; market data resource center; supply chain, financial, and life cycle analyses; pilot studies for renewables and efficiency at scale. Primary Contact: David Greene Previous and Ongoing Analyses : Market Analysis for Energy Technologies and Fuels Greene, D.L., Leiby, P.N., Bowman, D. (2007). "Integrated Analysis of Market Transformation Scenarios with HyTrans" ORNL/TM-2007/094, Oak Ridge National Laboratory, Oak Ridge, Tennessee, June. (David Greene, Paul Leiby) Impact of advanced vehicle technologies (e.g. PHEV, EV and FCV) on petroleum use and carbon emissions depends on many technological, behavior, market and policy factors. A consumer choice model with 1458 market segments for the period 2005-2050 has been developed to investigate the

352

NREL: Energy Analysis - Financial Policy Analysis  

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

Financial Policy Analysis Financial Policy Analysis NREL's financial policy analysis team examines the effects that policy has on renewable energy project financing and development. They look at how policies such as feed-in tariffs, clean renewable energy bonds, and power purchase agreements can shape the pace and structure of financing. For more on NREL's analysis of these policies, access the information below. Key Analyses for 2010 Cover of the A Policymaker's Guide to Feed-in Tariff Policy Design report. Feed-in Tariff Policy Design SEAC analysts Karlynn Cory and Claire Kreycik, along with Toby Couture of E3 Analytics and Emily Williams of the U.S. Department of State, recently published the report "A Policymaker's Guide to Feed-in Tariff Policy Design." Feed-in tariffs (FITs) are the most widely used renewable energy

353

DOE Hydrogen Analysis Repository: Hydrogen Analysis Projects...  

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

Analysis of Early Market Transition of Fuel Cell Vehicles Macro-System Model Stranded Biogas Decision Tool for Fuel Cell Co-Production Water for Hydrogen Pathways 2010 A Portfolio...

354

Spectrogram analysis of genomes  

Science Conference Proceedings (OSTI)

We perform frequency-domain analysis in the genomes of various organisms using tricolor spectrograms, identifying several types of distinct visual patterns characterizing specific DNA regions. We relate patterns and their frequency characteristics to ... Keywords: DNA spectrograms, frequency-domain analysis, genome analysis

David Sussillo; Anshul Kundaje; Dimitris Anastassiou

2004-01-01T23:59:59.000Z

355

NREL: Energy Analysis - Hydrogen and Fuel Cells Technology Analysis  

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

Sciences Geothermal Hydrogen and Fuel Cells Solar Vehicles and Fuels Research Wind Market Analysis Policy Analysis Sustainability Analysis Key Activities Models & Tools Data &...

356

Biophysical and Bioanalytical Analysis of the Iron-ome in Mitochondria Isolated from Saccharomyces cerevisiae  

E-Print Network (OSTI)

An integrative biophysical and bioanalytical approach to studying the Fe distribution in isolated mitochondria was developed. This procedure involved large-scale growths, the inclusion of a chelator in isolation buffers and an anaerobic isolation protocol. Electron microscopy confirmed that mitochondrial membranes were intact and that samples were largely devoid of contaminants. The Fe-ome-the sum of all Fe species in mitochondria--was studied using a combination of EPR, Mossbauer Spectroscopy, Electron Absorption, ICP-MS and Protein analysis. Isolated mitochondria were packed prior to analysis to improve the S/N ratio. The residual buffer content of sample pellets was determined by use of a radio-labeled buffer. There was essentially no difference in the packing efficiency of mitochondria isolated from respiring and fermenting cells. The determined packing factor, 0.80, was used to calculate concentrations of individual species in neat mitochondria. The Fe-omes of mitochondria isolated from cells grown on respiring, respirofermenting and fermenting media were determined. Neat mitochondria contained ~ 750 mM Fe, regardless of whether the cells had been grown on respiring or fermenting media. The Fe distribution of respirofermenting samples (which can undergo respiration and fermentation simultaneously) was nearly identical to that of respiring mitochondria. Fermenting samples had a very different Fe-distribution. Nearly 40 % of the iron in respiring mitochondria was present in respiratory complexes including cytochrome c, cytochrome bc1, succinate dehydrogenase, and cytochrome c oxidase. Fermenting mitochondria contain an Fe-ome dominated by non-protein centers. Approximately 80 % of the Fe was present as a combination of nonheme HS Fe2+, nonheme Fe3+ and Fe3+ nanoparticles. These centers were present in roughly equal amounts. The remaining 20 % of the Fe was present as respiratory complexes which have concentrations ~ 1/2 to 1/3 that of respiring mitochondria. A model is presented in which the nonheme HS Fe2+ species serves as a feedstock for Fe/S and heme biosynthesis. When the cell is growing on respiring media, this metabolic reservoir diminishes as respiratory complexes are constantly synthesized. Under fermentative growth, the metabolic pool increases due to the reduced demand for respiration-related prosthetic groups.

Garber Morales, Jessica H.

2010-05-01T23:59:59.000Z

357

Essays on Financial Information Analysis  

E-Print Network (OSTI)

Jun Zhang. 2013. Financial Statements Analysis and Valution.H. Penman. 1989. “Financial Statement Analysis and the465–482. . 2001. Financial Statement Analysis and Security

Schuett, Harm Henning

2013-01-01T23:59:59.000Z

358

ROOT CAUSE ANALYSIS PROGRAM MANUAL  

E-Print Network (OSTI)

the problem is obscure. Analysis, Events and Causal Factor:Good Better Best Change Analysis Event and Causal FactorsEvents and Causal Factors Charting and Analysis Identifying

Gravois, Melanie C.

2007-01-01T23:59:59.000Z

359

Transportation Analysis | Clean Energy | ORNL  

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

Transportation Analysis SHARE Transportation Analysis Transportation Analysis efforts at Oak Ridge National Laboratory contribute to the efficient, safe, and free movement of...

360

NREL: Energy Analysis - Dani Salyer  

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

Data Analysis and Visualization Group Energy Forecasting and Modeling Group Market and Policy Impact Analysis Group Technology Systems and Sustainability Analysis Group...

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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

NREL: Energy Analysis - Biomass Technology Analysis  

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

Biomass Technology Analysis Biomass Technology Analysis Conducting full life-cycle assessments for biomass products, including electricity, biodiesel, and ethanol, is important for determining environmental benefits. NREL analysts use a life-cycle inventory modeling package and supporting databases to conduct life-cycle assessments. These tools can be applied on a global, regional, local, or project basis. Integrated system analyses, technoeconomic analyses, life-cycle assessments (LCAs), and other analysis tools are essential to our research and development efforts. They provide an understanding of the economic, technical, and even global impacts of renewable technologies. These analyses also provide direction, focus, and support to the development and commercialization of various biomass conversion technologies. The economic

362

Classical Heat Exchanger Analysis  

Science Conference Proceedings (OSTI)

The industry methodology for heat exchanger performance and uncertainty analysis has been successful in dealing with the requirements of the Nuclear Regulatory Commission (NRC) issued in 1989 for safety-related service water systems, but has been found to have several significant limitations. The general objective of this report is to improve the industry performance and uncertainty analysis methodology and guidelines for implementation and analysis of heat exchanger performance. ...

2013-05-31T23:59:59.000Z

363

Heliostat manufacturing analysis  

DOE Green Energy (OSTI)

Results of a manufacturing cost analysis of heliostats are presented. The two primary objectives are: (1) providing a base for uniform cost analysis, and (2) providing facility and manufacturing cost estimates for planning purposes in the development of a heliostat industry. The manufacturing analysis provides materials, labor, equipment, and facility costs for each step in the manufacturing process. Detailed procedures are presented for cost estimates. These include estimating worksheets for each component of the manufacturing costs.

Drumheller, K.

1978-10-01T23:59:59.000Z

364

NREL: Energy Analysis - Staff  

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

Staff Staff National Renewable Energy Laboratory (NREL) analysts have capabilities that span a wide range of renewable energy technologies. This site will help you learn more about the crosscutting analysis capabilities, energy-modeling background, and technology expertise of analysts in our Strategic Energy Analysis Center (SEAC). Strategic Planning and Direction Center Director (acting): Doug Arent Business Development: Dan Bilello Synthesis and Integration: Debra Sandor Lead Administrative Assistant: Melissa Hudman Project Management Support: Dani Salyer Data Analysis and Visualization The following staff are SEAC's experts in analysis relating to geospatial analytics and integrated resource assessment; our energy efficiency and renewable energy data warehouse; and advanced visualization.

365

Backfit Analysis Desktop Guide  

Office of Legacy Management (LM)

only examples, it is not an exhaustive list * Review implementation of causal analysis technology and frequency of analyses. * Develop new corrective actions that do not rely on...

366

Hazard Analysis Database Report  

Science Conference Proceedings (OSTI)

The Hazard Analysis Database was developed in conjunction with the hazard analysis activities conducted in accordance with DOE-STD-3009-94, Preparation Guide for U S . Department of Energy Nonreactor Nuclear Facility Safety Analysis Reports, for HNF-SD-WM-SAR-067, Tank Farms Final Safety Analysis Report (FSAR). The FSAR is part of the approved Authorization Basis (AB) for the River Protection Project (RPP). This document describes, identifies, and defines the contents and structure of the Tank Farms FSAR Hazard Analysis Database and documents the configuration control changes made to the database. The Hazard Analysis Database contains the collection of information generated during the initial hazard evaluations and the subsequent hazard and accident analysis activities. The Hazard Analysis Database supports the preparation of Chapters 3 ,4 , and 5 of the Tank Farms FSAR and the Unreviewed Safety Question (USQ) process and consists of two major, interrelated data sets: (1) Hazard Analysis Database: Data from the results of the hazard evaluations, and (2) Hazard Topography Database: Data from the system familiarization and hazard identification.

GRAMS, W.H.

2000-12-28T23:59:59.000Z

367

Failure Analysis and Prevention  

Science Conference Proceedings (OSTI)

The following topics are of special interest: fatigue & fracture, tools & techniques for failure analysis, aerospace, aging Infrastructure/bridges, oil and gas, surface ...

368

Failure Analysis and Prevention  

Science Conference Proceedings (OSTI)

One Too Many Drips for This Natural Gas Pipeline · Quantitative Elemental Analysis in the SEM with the Silicon Drift Detector (SDD) at the Precision and ...

369

Handbook of coal analysis  

SciTech Connect

The Handbook deals with the various aspects of coal analysis and provides a detailed explanation of the necessary standard tests and procedures that are applicable to coal in order to help define usage and behavior relative to environmental issues. It provides details of the meaning of various test results and how they might be applied to predict coal behavior during use. Emphasis is on ASTM standards and test methods but ISO and BSI standards methods are included. Chapter headings are: Coal analysis; Sampling and sample preparation; Proximate analysis; Ultimate analysis; Mineral matter; Physical and electrical properties; Thermal properties; Mechanical properties; Spectroscopic properties; Solvent properties; and Glossary.

James G. Speight

2005-05-01T23:59:59.000Z

370

NREL: Energy Analysis - Publications  

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

of Concentrating Solar Power with Thermal Energy Storage in a California 33% Renewable Scenario (2013) Summary presentation (2013) Preliminary Analysis of the Jobs and Economic...

371

Lipid Analysis Package  

Science Conference Proceedings (OSTI)

A Lipid Value package of 5 different books. Lipid Analysis Package Methods and Analyses Methods - Analyses Books Value Packages Methods - Analyses Books Methods This Value Package includes:   ...

372

Planning, Budget, and Analysis  

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

EERE Planning, Budget, and Analysis (Revised) Philip Patterson (Economist) and Jeff Dowd (Economist) DOE Hydrogen, Fuel Cells, and Infrastructure Technologies Program Systems...

373

Cogeneration Project Analysis Update  

E-Print Network (OSTI)

Not long ago, to evaluate the feasibility of a cogeneration project, a simple economic analysis, that considered capital required, operations and maintenance savings, was sufficient. However, under present economic uncertainties (and highly competitive business environment) the situation has changed dramatically. It is now essential to do an in-depth evaluation to insure that very diverse and applicable factors are determined and properly evaluated. This paper will go beyond the "nuts and bolts" analysis of cogeneration economics. It will enumerate and discuss diverse factors, such as, but not limited to: Fuel Considerations, Heat System Analysis, Electric Power Considerations, Key Technical Project Considerations, and Economic Analysis.

Robinson, A. M.; Garcia, L. N.

1987-09-01T23:59:59.000Z

374

SPC Process Analysis  

Science Conference Proceedings (OSTI)

...characterization methods and how data will be displayedConstruct a characterization implementation planChoose analysis method for process optimization (that is, evolutionary

375

Building Economic Analysis Software  

Science Conference Proceedings (OSTI)

... The Durabiltiy Doctor helps homeowners choose the right amount of ... analysis of residential fire sprinklers at the homeowner- and community-levels. ...

2013-07-31T23:59:59.000Z

376

Environment - Analysis & Projections - U.S. Energy ...  

U.S. Energy Information Administration (EIA)

Analysis & Projections. Monthly and yearly energy forecasts, analysis of energy topics, financial analysis, Congressional reports. Markets & ...

377

Electricity - Analysis & Projections - U.S. Energy ...  

U.S. Energy Information Administration (EIA)

Analysis & Projections. Monthly and yearly energy forecasts, analysis of energy topics, financial analysis, Congressional reports. Markets & ...

378

Indonesia - Analysis - U.S. Energy Information ...  

U.S. Energy Information Administration (EIA)

Analysis & Projections. Monthly and yearly energy forecasts, analysis of energy topics, financial analysis, Congressional reports. Markets & ...

379

Analysis & Projections - U.S. Energy Information ...  

U.S. Energy Information Administration (EIA)

Analysis & Projections. Monthly and yearly energy forecasts, analysis of energy topics, financial analysis, Congressional reports. Markets & ...

380

Data Integration Data Analysis  

E-Print Network (OSTI)

Keywords Databases Data Integration Data Analysis Ontology Management » Prof. Dr. Erhard Rahm Prof. Dr. Erhard Rahm and his re- search group focus on advanced methods for data management, in- tegration and analysis of molecular- biological data. They, particularly, have developed comprehensive data

Schüler, Axel

Note: This page contains sample records for the topic "analysis icp interference" from the National Library of EnergyBeta (NLEBeta).
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381

Standard practices for dissolving glass containing radioactive and mixed waste for chemical and radiochemical analysis  

E-Print Network (OSTI)

1.1 These practices cover techniques suitable for dissolving glass samples that may contain nuclear wastes. These techniques used together or independently will produce solutions that can be analyzed by inductively coupled plasma atomic emission spectroscopy (ICP-AES), inductively coupled plasma mass spectrometry (ICP-MS), atomic absorption spectrometry (AAS), radiochemical methods and wet chemical techniques for major components, minor components and radionuclides. 1.2 One of the fusion practices and the microwave practice can be used in hot cells and shielded hoods after modification to meet local operational requirements. 1.3 The user of these practices must follow radiation protection guidelines in place for their specific laboratories. 1.4 Additional information relating to safety is included in the text. 1.5 The dissolution techniques described in these practices can be used for quality control of the feed materials and the product of plants vitrifying nuclear waste materials in glass. 1.6 These pr...

American Society for Testing and Materials. Philadelphia

2000-01-01T23:59:59.000Z

382

Energy Analysis Publications  

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

Analysis > Product List Analysis > Product List HeaderLine Energy Analysis Publications Products BRIEFS: Showing Results 1 to 5 of 23 Role of Alternative Energy Sources: Nuclear Technology Assessment Brief (Aug 2012) Role of Alternative Energy Sources: Hydropower Technology Assessment Brief (Aug 2012) Role of Alternative Energy Sources: Geothermal Technology Assessment Brief (Aug 2012) Role of Alternative Energy Sources: Solar Thermal Technology Assessment Brief (Aug 2012) Role of Alternative Energy Sources: Wind Technology Assessment Brief (Aug 2012) View All MODELS/TOOLS: Showing Results 1 to 5 of 23 Power Plant Flexible Model (Nov 2013) NETL Upstream Dashboard Tool (Aug 2012) Power Systems Life Cycle Analysis Tool (Power LCAT) (Jun 2012) Life Cycle Greenhouse Gas Analysis of Advanced Jet Propulsion Fuels: Fischer-Tropsch Based SPK-1 Case Study - Model (Dec 2011)

383

K Basin safety analysis  

DOE Green Energy (OSTI)

The purpose of this accident safety analysis is to document in detail, analyses whose results were reported in summary form in the K Basins Safety Analysis Report WHC-SD-SNF-SAR-001. The safety analysis addressed the potential for release of radioactive and non-radioactive hazardous material located in the K Basins and their supporting facilities. The safety analysis covers the hazards associated with normal K Basin fuel storage and handling operations, fuel encapsulation, sludge encapsulation, and canister clean-up and disposal. After a review of the Criticality Safety Evaluation of the K Basin activities, the following postulated events were evaluated: Crane failure and casks dropped into loadout pit; Design basis earthquake; Hypothetical loss of basin water accident analysis; Combustion of uranium fuel following dryout; Crane failure and cask dropped onto floor of transfer area; Spent ion exchange shipment for burial; Hydrogen deflagration in ion exchange modules and filters; Release of Chlorine; Power availability and reliability; and Ashfall.

Porten, D.R.; Crowe, R.D.

1994-12-16T23:59:59.000Z

384

Transition of Iodine Analysis to Accelerator Mass Spectrometry  

SciTech Connect

Funding was received from NA-22 to investigate transitioning iodine isotopic analyses to an accelerator mass spectrometry (AMS) system. The present method uses gas-phase chemistry followed by thermal ionization mass spectrometry (TIMS). It was anticipated that the AMS approach could provide comparable data, with improved background levels and superior sample throughput. An aqueous extraction method was developed for removal of iodine species from high-volume air filters. Ethanol and sodium hydroxide, plus heating and ultrasonic treatment, were used to successfully extract iodine from loaded high-volume air filters. Portions of the same filters were also processed in the traditional method and analyzed by TIMS for comparison. Aliquot parts of the aqueous extracts were analyzed by AMS at the Swiss Federal Institute of Technology. Idaho National Laboratory (INL) personnel visited several AMS laboratories in the US, Spain, and Switzerland. Experience with AMS systems from several manufacturers was gained, and relationships were developed with key personnel at the laboratories. Three batches of samples were analyzed in Switzerland, and one in Spain. Results show that the INL extraction method successfully extracted enough iodine from high-volume air filters to allow AMS analysis. Comparison of the AMS and TIMS data is very encouraging; while the TIMS showed about forty percent more atoms of 129I, the 129/127 ratios tracked each other very well between the two methods. The time required for analysis is greatly reduced for the aqueous extraction/AMS approach. For a hypothetical batch of thirty samples, the AMS methodology is about five times faster than the traditional gas-phase chemistry and TIMS analysis. As an additional benefit, background levels for the AMS method are about 1000 times lower than for TIMS. This results from the fundamental mechanisms of ionization in the AMS system and cleanup of molecular interferences. We showed that an aqueous extraction of high-volume air filters, followed by isotopic analysis by AMS, can be used successfully to make iodine measurements with results comparable to those obtained by filter combustion and TIMS analysis.

J. E. Delmore

2010-09-01T23:59:59.000Z

385

Hazard Analysis Database Report  

Science Conference Proceedings (OSTI)

The Hazard Analysis Database was developed in conjunction with the hazard analysis activities conducted in accordance with DOE-STD-3009-94, Preparation Guide for US Department of Energy Nonreactor Nuclear Facility Safety Analysis Reports, for the Tank Waste Remediation System (TWRS) Final Safety Analysis Report (FSAR). The FSAR is part of the approved TWRS Authorization Basis (AB). This document describes, identifies, and defines the contents and structure of the TWRS FSAR Hazard Analysis Database and documents the configuration control changes made to the database. The TWRS Hazard Analysis Database contains the collection of information generated during the initial hazard evaluations and the subsequent hazard and accident analysis activities. The database supports the preparation of Chapters 3,4, and 5 of the TWRS FSAR and the USQ process and consists of two major, interrelated data sets: (1) Hazard Evaluation Database--Data from the results of the hazard evaluations; and (2) Hazard Topography Database--Data from the system familiarization and hazard identification.

GAULT, G.W.

1999-10-13T23:59:59.000Z

386

Attached sunspace design analysis  

DOE Green Energy (OSTI)

An introduction to new design analysis information for attached sunspaces is presented. The 28 sunspace reference designs are described. Note is taken of those designs (the semi-enclosed geometries) analyzed more recently than the previously published reports. The role of sensitivity studies is discussed, and some sample plots of sunspace performance sensitivity to key design parameters are presented. The monthly solar load ratio (SLR) correlations are reviewed with emphasis on the modified SLR used in the sunspace analysis. The application of the sunspace SLR correlations to monthly design analysis is outlined.

Jones, R.W.; McFarland, R.D.

1981-01-01T23:59:59.000Z

387

Efficient independent component analysis  

E-Print Network (OSTI)

Independent component analysis (ICA) has been widely used for blind source separation in many fields such as brain imaging analysis, signal processing and telecommunication. Many statistical techniques based on M-estimates have been proposed for estimating the mixing matrix. Recently several nonparametric methods have been developed but in-depth analysis on asymptotic efficiency has not been available. We analyze ICA using semiparametric theories and propose a straightforward estimate based on the efficient score function by using B-spline approximations. The estimate is asymptotically efficient under moderate conditions and exhibits better performance than standard ICA methods in a variety of simulations.

Chen, Aiyou

2006-01-01T23:59:59.000Z

388

DOE Retro Analysis Plan  

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

Retro Analysis Plan Retro Analysis Plan August 2, 2011 Page 1 August 2, 2011 Daniel Cohen, Esq. Office of General Counsel U.S. Department of Energy 1000 Independence Avenue, SW Washington, DC 20585 Re: Preliminary Plan for Retrospective Analysis Dear Mr. Cohen: These comments are submitted by the Air-Conditioning, Heating, and Refrigeration Institute (AHRI) in response to the U.S. Department of Energy's (DOE) notice appearing in the July 11, 2011 Federal Register requesting comments on the Preliminary Plan for Retrospective Analysis of Existing Rules. We are encouraged by DOE's efforts to implement Executive Order 13563. We appreciate the actions already taken by DOE to address our concerns regarding the Final Rule on Certification, Compliance, and Enforcement Regulations for Consumer Products and Commercial and

389

Ultrasound Analysis of Slurries  

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

Ultrasound Analysis of Slurries Ultrasound Analysis of Slurries Opportunity The Department of Energy's National Energy Technology Laboratory is seeking licensing partners interested in implementing United States Patent Number 6,959,589 entitled "Ultrasound Analysis of Slurries." Disclosed in this patent is an apparatus that facilitates the ultrasonic analysis of materials in slurry form. The apparatus focuses on an autoclave arrange- ment to determine the concentration and/or particle size distribution of the slurry under elevated temperature and pressure conditions. During the process, the temperature- and pressure-sensitive ultrasonic transducers are maintained under ambient conditions. The transducers are positioned outside of the temperature-pressure environment of the material to be analyzed,

390

Measurement, Analysis, and Improvement  

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

6 Measurement, Analysis, and Improvement Process 11_0304 Page 1 of 6 6 Measurement, Analysis, and Improvement Process 11_0304 Page 1 of 6 EOTA - Business Process Document Title: Measurement, Analysis, and Improvement Process Document Number: P-006 Rev 11_0304 Document Owner: Elizabeth Sousa Backup Owner: Melissa Otero Approver(s): Melissa Otero Parent Document: Q-001, Quality Manual Notify of Changes: EOTA Employees Referenced Document(s): P-008 Corrective-Preventive Action Process, P-004 Business System Management Review and REG-003 Records Register P-006 Measurement, Analysis, and Improvement Process 11_0304 Page 2 of 6 Revision History: Rev. Description of Change A Initial Release 08_0416 Changed verbiage in Step 6 to, "CAR/PAR/IO using P-008, Corrective-Preventive Action & Improvement Opportunity"

391

Cross Cutting Analysis  

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

Cross Cutting Analysis Cross Cutting Analysis June 3, 2003 Hydrogen Coordination Meeting Ed Schmetz Portfolio Manager Office of Coal Fuels and Industrial Systems Natural Gas and Coal Derived Hydrogen FCV System Analysis * Two scenarios were developed to estimate the impact of natural gas and coal-derived hydrogen in fuel cell vehicles (FCVs) * Case 1 evaluated the impact of 50 million vehicles * Case 2 evaluated the impact of 100 million vehicles * Purpose was to evaluate the impact on: * Fossil fuel demand * CO 2 emissions * Criteria pollutants * Energy consumption/security * Number and cost of hydrogen plants needed Hydrogen FCV System Analysis Fleet Assumptions 27.5 12.5 10 55 25 20 0 25 50 75 100 Case 1- 50 MM LDVs Case 2- 100 MM LDVs Light Duty Vehicles, By Type in Millions LDT2 LDT1 PC * Case 1 -

392

Energy Analysis Publications  

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

Analysis Analysis Life Cycle Analysis Energy Analysis Publications NEW RELEASES Perspective on the U.S. Coal Industry Perspective on the U.S. Coal Industry [PPSX - 3.09MB] (Dec 2013) Novel CO2 Utilization Concepts: Working Paper Novel CO2 Utilization Concepts: Working Paper [ZIP - 4MB] (Nov 2013) Contact: Gavin Pickenpaugh Contact: Robert James This presentation provides an overview of the coal industry, focusing on the United States, but within a global context.... Read More Working Report on CO2 Utilization Concepts, detailing screening and detailed studies of concepts using CO2 for product g... Read More Power Plant Flexible Model Power Plant Flexible Model [2.04 - PDF] (Nov 2013) LCA XIII: The Carbon Footprint of Carbon Dioxide LCA XIII: The Carbon Footprint of Carbon Dioxide

393

Job Hazard Analysis  

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

Step by Step Instructions - Page 1 of 2 Helpful Information STEP 1. Log in to the EH&S Job Hazards Analysis (JHA) system at https:ehswprod.lbl.govehstrainingjhalogin.aspx...

394

Analysis of Lipid Oxidation  

Science Conference Proceedings (OSTI)

Analysis of Lipid Oxidation is essential for further developments in analytical methodology and hyphenated techniques, with which more understanding of the reaction kinetics, mechanism, and implications will take place. ...

395

Energy Sector Market Analysis  

SciTech Connect

This paper presents the results of energy market analysis sponsored by the Department of Energy's (DOE) Weatherization and International Program (WIP) within the Office of Energy Efficiency and Renewable Energy (EERE). The analysis was conducted by a team of DOE laboratory experts from the National Renewable Energy Laboratory (NREL), Oak Ridge National Laboratory (ORNL), and Pacific Northwest National Laboratory (PNNL), with additional input from Lawrence Berkeley National Laboratory (LBNL). The analysis was structured to identify those markets and niches where government can create the biggest impact by informing management decisions in the private and public sectors. The analysis identifies those markets and niches where opportunities exist for increasing energy efficiency and renewable energy use.

Arent, D.; Benioff, R.; Mosey, G.; Bird, L.; Brown, J.; Brown, E.; Vimmerstedt, L.; Aabakken, J.; Parks, K.; Lapsa, M.; Davis, S.; Olszewski, M.; Cox, D.; McElhaney, K.; Hadley, S.; Hostick, D.; Nicholls, A.; McDonald, S.; Holloman, B.

2006-10-01T23:59:59.000Z

396

Diffraction Analysis of Alloys  

Science Conference Proceedings (OSTI)

Feb 18, 2010 ... Neutron and X-Ray Studies of Advanced Materials III : Diffraction Analysis of Alloys .... at the Advanced Photon Source at Argonne National Laboratory in .... pure Zirconium was performed with the D-DIA apparatus at the APS.

397

Task 1: Market Analysis  

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

Final Report - 12501 3 ABSTRACT Building upon the 1999 AD Little Study, an expanded market analysis was performed by GE Power Systems in 2001 to quantify the potential demand...

398

Electrical Subsurface Grounding Analysis  

SciTech Connect

The purpose and objective of this analysis is to determine the present grounding requirements of the Exploratory Studies Facility (ESF) subsurface electrical system and to verify that the actual grounding system and devices satisfy the requirements.

J.M. Calle

2000-11-01T23:59:59.000Z

399

ESF BLAST DESIGN ANALYSIS  

SciTech Connect

The purpose and objective of this design analysis are to develop controls considered necessary and sufficient to implement the requirements for the controlled drilling and blasting excavation of operations support alcoves and test support alcoves in the Exploratory Studies Facility (ESF). The conclusions reached in this analysis will flow down into a construction specification ensuring controlled drilling and blasting excavation will be performed within the bounds established here.

E.F. fitch

1995-03-13T23:59:59.000Z

400

FCT Systems Analysis: 2010-2025 Scenario Analysis for Hydrogen...  

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

-2025 Scenario Analysis for Hydrogen Fuel Cell Vehicles and Infrastructure to someone by E-mail Share FCT Systems Analysis: 2010-2025 Scenario Analysis for Hydrogen Fuel Cell...

Note: This page contains sample records for the topic "analysis icp interference" 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

FCT Systems Analysis: DOE 2010-2025 Scenario Analysis Meeting...  

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

to someone by E-mail Share FCT Systems Analysis: DOE 2010-2025 Scenario Analysis Meeting: January 31, 2007 on Facebook Tweet about FCT Systems Analysis: DOE 2010-2025 Scenario...

402

Chernobyl Deconstruction ALARA Analysis  

SciTech Connect

The Bechtel/EDF/Battelle Consortium has recently completed the conceptual design for the Chernobyl New Safe Confinement (NSC). Battelle has the scope of work related to environment and safety of the design. As part of the safety analysis, an ALARA analysis was performed for deconstruction of the major, unstable elements of the Shelter Object over the destroyed Unit 4 of the reactor complex. The major elements addressed in the analysis included the current roof sections and the major beams supporting the roof sections. The analysis was based on the existing configuration of the Shelter Object, the developing conceptual design of the NSC arch structure, the developing conceptual design of the facilities within and associated with the NSC (including handling and processing of deconstructed elements, and waste management), and existing Ukranian regulations and working processes and procedures. KSK (a Ukranian Consortium) is a subcontractor to the Bechtel/EDF/Battelle Consortium and performed much of the dose analysis. The analysis concluded that ALARA could be achieved with appropriate implementation of existing Ukrainian regulations and procedures, and developing conceptual design criteria and features.

Shipler, Dillard B.; Batiy, Valeriy; Povlovsky, Leonid; Schmidt, John P.; Schmieman, Eric A.

2004-03-24T23:59:59.000Z

403

NREL: Energy Analysis - Vehicles and Fuels Research Analysis  

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

303-275-4451 Access more information on all of our Staff Analysts Printable Version Energy Analysis Home Capabilities & Expertise Technology Analysis Biomass Buildings...

404

NREL: Vehicle Systems Analysis - Vehicle Systems Analysis Publications  

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

Systems Analysis Publications The Vehicle Systems Analysis Team at the National Renewable Energy Laboratory publishes technical reports, conference papers, and presentations about...

405

The Tariff Analysis Project: A Database and Analysis Platform...  

Open Energy Info (EERE)

for Electricity Tariffs Jump to: navigation, search Tool Summary LAUNCH TOOL Name: The Tariff Analysis Project: A Database and Analysis Platform for Electricity Tariffs Focus...

406

DOE Hydrogen Analysis Repository: Transition Analysis - H2 Production...  

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

Transition Analysis - H2 Production and Delivery Infrastructure Project Summary Full Title: Transition Analysis of the Hydrogen Production and Delivery Infrastructure as a Complex...

407

DOE Hydrogen Analysis Repository: H2A Delivery Scenario Analysis...  

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

Scenario Analysis Model (HDSAM) Project Summary Full Title: H2A Delivery Scenario Analysis Model (HDSAM) Project ID: 218 Principal Investigator: Marianne Mintz Keywords: Models;...

408

Inception report and Gap analysis  

E-Print Network (OSTI)

Inception report and Gap analysis Boiler inspection Riga, June 2004 #12;Inception report and gap analysis ­ boiler inspection Table of Content 1 INTRODUCTION ................................................................................................................................. 3 2 BOILER INSTALLATIONS ­ GAP ANALYSIS

409

ROOT CAUSE ANALYSIS PROGRAM MANUAL  

E-Print Network (OSTI)

Root Cause Analysis Program Manual, Rev 0 Page 1 ofROOT CAUSE ANALYSIS PROGRAM MANUAL LBNL Pub-5519 (2), Rev. 0Cause Analysis Program Manual, Rev 0 Page 2 of 15 REVISION

Gravois, Melanie C.

2007-01-01T23:59:59.000Z

410

NREL: Energy Analysis - Lynn Billman  

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

Areas of expertise Benefits analysis for EERE programs Energy efficiency and renewable energy market research Analysis, modeling, and projection of capital requirements and...

411

Earth System Analysis for Sustainability  

E-Print Network (OSTI)

Earth System Analysis for Sustainability By Hans JoachimSystem Analysis for Sustainability. MIT Press, Cambridge,the factors shaping sustainability yet undertaken and makes

Hamilton-Smith, Elery

2005-01-01T23:59:59.000Z

412

NREL: Energy Analysis - Bethany Speer  

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

and Policy Impact Analysis Group in the Strategic Energy Analysis Center. Renewable Energy Market, Finance, and Policy Analyst On staff since November 2009 Phone number:...

413

Center for Transportation Analysis Overview  

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

Center for Transportation Analysis Overview The mission of the Center for Transportation Analysis (CTA) at Oak Ridge National Laboratory (ORNL) is to provide solutions for assuring...

414

NREL: Energy Analysis - Aaron Levine  

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

is a member of the Technology Systems and Sustainability Analysis Group in the Strategic Energy Analysis Center. ResearchRegulatory Analyst On staff since 2012 Phone number:...

415

NREL: Energy Analysis - Ethan Warner  

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

is a member of the Technology Systems and Sustainability Analysis Group in the Strategic Energy Analysis Center. Sustainability Analyst On staff since August 2009 Phone number:...

416

NREL: Energy Analysis - Daniel Getman  

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

of the Data Analysis and Visualization Group in the Strategic Energy Analysis Center. GIS Scientist IV - Geospatial Section Supervisor On staff since March 2010 Phone number:...

417

NREL: Energy Analysis - Lori Bird  

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

E-mail: lori.bird@nrel.gov Areas of expertise Market analysis Policy analysis Primary research interests Renewable energy and carbon markets Renewable energy policy...

418

Power electronics reliability analysis.  

SciTech Connect

This report provides the DOE and industry with a general process for analyzing power electronics reliability. The analysis can help with understanding the main causes of failures, downtime, and cost and how to reduce them. One approach is to collect field maintenance data and use it directly to calculate reliability metrics related to each cause. Another approach is to model the functional structure of the equipment using a fault tree to derive system reliability from component reliability. Analysis of a fictitious device demonstrates the latter process. Optimization can use the resulting baseline model to decide how to improve reliability and/or lower costs. It is recommended that both electric utilities and equipment manufacturers make provisions to collect and share data in order to lay the groundwork for improving reliability into the future. Reliability analysis helps guide reliability improvements in hardware and software technology including condition monitoring and prognostics and health management.

Smith, Mark A.; Atcitty, Stanley

2009-12-01T23:59:59.000Z

419

Occurrence Reporting Causal Analysis  

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

DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. TS DOE-STD-1197-2011 SEPTEMBER 2011 DOE STANDARD OCCURRENCE REPORTING CAUSAL ANALYSIS U.S. Department Of Energy AREA SAFT Washington, D.C. 20585 NOT MEASUREMENT SENSITIVE This page is intentionally left blank. DOE-STD-1197-2011 iii FOREWORD This Department of Energy Standard is for use by all DOE elements. Beneficial comments (recommendations, additions, and deletions) and any pertinent data that may improve this document should be mailed to the U.S. Department of Energy; Office of Health, Safety, and Security; Office of Environmental Protection, Sustainability Support & Corporate Safety Analysis, Office of Analysis, GTN/HS-24; 1000 Independence Ave., SW; Washington, DC 20585-1290.

420

NREL: Energy Analysis - News  

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

Bookmark and Share Bookmark and Share News The Energy Analysis at NREL newsletter highlights the lab's analysts and analysis activities in renewable energy and energy efficiency technologies are having an impact on U.S. energy goals. The newsletter features recent publications and websites, updates to our models and tools, and staff activities. You can subscribe to receive the newsletter monthly by email. December 2013 NREL Analysis: Making an Impact A graphic showing the cover design for the Realizing a Clean Energy Future brochure. In Hawaiian mythology, Maui set out to lasso the sun in order to capture its energy. He succeeded. That may have been the most dramatic leap forward in clean energy systems that the world has known. Until now. Today, profound energy system transformation is underway. A combination of forces

Note: This page contains sample records for the topic "analysis icp interference" 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

Colorado Gap Analysis  

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

Colorado Gap Analysis Colorado Gap Analysis 2 The Building Codes Assistance Project (BCAP) BCAP is a non-profit advocacy organization established in 1994 as a joint initiative of the Alliance to Save Energy, the American Council for an Energy-Efficient Economy, and the Natural Resources Defense Council. BCAP focuses on providing state and local governments in the U.S., as well as stakeholder organizations, with support on code adoption and implementation through direct assistance, research, data analysis, and coordination with other activities and allies. With over sixteen years of experience supporting numerous state energy offices and city building departments, along with tracking code activities across the country, BCAP is well-positioned to assist in local and statewide activity to advance

422

Models in Decision Analysis  

E-Print Network (OSTI)

Any statistical analysis or decision analysis contains numerical inputs of which we are unsure. Some of our uncertainty arises from physical randomness which we can model in various ways, ideally through probability. Some relates to judgmental estimates of qualities about which we may be unsure in many different respects. There are other uncertainties involved, however: some relates to ambiguity and imprecision of meaning; some relate to lack of clarity in the objectives which the analysis seeks to meet; some relate to the numerical accuracy of calculations. Suppose, for instance, that we need to consider the probability of a conservative government being returned at the next election. The probability, a subjective probability, itself is a number that the statistician or decision maker has to judge. In some ways it may be related to 'hard' data, but there will always be an element of judgement in setting its value. But one might also ask: what is meant by a 'conservative' government; ...

Simon French

1993-01-01T23:59:59.000Z

423

Proximate analysis of coal  

Science Conference Proceedings (OSTI)

This lab experiment illustrates the use of thermogravimetric analysis (TGA) to perform proximate analysis on a series of coal samples of different rank. Peat and coke are also examined. A total of four exercises are described. These are dry exercises as students interpret previously recorded scans. The weight percent moisture, volatile matter, fixed carbon, and ash content are determined for each sample and comparisons are made. Proximate analysis is performed on a coal sample from a local electric utility. From the weight percent sulfur found in the coal (determined by a separate procedure the Eschka method) and the ash content, students calculate the quantity of sulfur dioxide emissions and ash produced annually by a large coal-fired electric power plant.

Donahue, C.J.; Rais, E.A. [University of Michigan, Dearborn, MI (USA)

2009-02-15T23:59:59.000Z

424

Cost analysis guidelines  

Science Conference Proceedings (OSTI)

The first phase of the Depleted Uranium Hexafluoride Management Program (Program)--management strategy selection--consists of several program elements: Technology Assessment, Engineering Analysis, Cost Analysis, and preparation of an Environmental Impact Statement (EIS). Cost Analysis will estimate the life-cycle costs associated with each of the long-term management strategy alternatives for depleted uranium hexafluoride (UF6). The scope of Cost Analysis will include all major expenditures, from the planning and design stages through decontamination and decommissioning. The costs will be estimated at a scoping or preconceptual design level and are intended to assist decision makers in comparing alternatives for further consideration. They will not be absolute costs or bid-document costs. The purpose of the Cost Analysis Guidelines is to establish a consistent approach to analyzing of cost alternatives for managing Department of Energy`s (DOE`s) stocks of depleted uranium hexafluoride (DUF6). The component modules that make up the DUF6 management program differ substantially in operational maintenance, process-options, requirements for R and D, equipment, facilities, regulatory compliance, (O and M), and operations risk. To facilitate a consistent and equitable comparison of costs, the guidelines offer common definitions, assumptions or basis, and limitations integrated with a standard approach to the analysis. Further, the goal is to evaluate total net life-cycle costs and display them in a way that gives DOE the capability to evaluate a variety of overall DUF6 management strategies, including commercial potential. The cost estimates reflect the preconceptual level of the designs. They will be appropriate for distinguishing among management strategies.

Strait, R.S.

1996-01-10T23:59:59.000Z

425

Use of ICP/MS with Ultrasonic Nebulizer for Routine Determination  

E-Print Network (OSTI)

wastes resulting from uranium solution extraction processes. Underground ore bodies depleted total suspended solids TWC Texas Water Commission U uranium AV-5 #12;U3O8 oxide of uranium UIC underground injection control ULD uranium location database UMTRA Uranium Mill Tailings Remedial Action

426

IAEA-F1-CN-69/ICP/04 (R) SUSTAINED SPHEROMAK PHYSICS EXPERIMENT*  

E-Print Network (OSTI)

of the injector current to spheromak current and on the magnetic flux coupling the injector to the spheromak. New been designed for high vacuum cleanliness to minimize current and energy losses to impurities. The flux o o o o o o o o o 0 .2 .4 .6 .8 .6 .4 .2 0 -.2 Open flux- lines Diagnostic slot -.4 Bias field coils

427

Spatial Forecast Verification: Baddeley’s Delta Metric Applied to the ICP Test Cases  

Science Conference Proceedings (OSTI)

A mathematical displacement metric, Baddeley’s ?, is examined for verifying gridded forecasts against gridded observations using the Spatial Forecast Verification Methods Intercomparison Project test cases. Results are compared with several other ...

Eric Gilleland

2011-06-01T23:59:59.000Z

428

Environmental Assessment for the Bison School District Heating Plant Project, Institutional Conservation Program (ICP)  

SciTech Connect

This environmental assessment analyzes the environmental impacts of replacing the Bison, South Dakota School District`s elementary school and high school heating system consisting of oil-fired boilers and supporting control system and piping

1995-12-31T23:59:59.000Z

429

Analysis Driven Field Testing  

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

ANALYSIS DRIVEN FIELD TESTING ANALYSIS DRIVEN FIELD TESTING Greg Barker, MEP Paul Norton, NERD C.E. Hancock, MEP Building America Residential Energy Efficiency Stakeholder Meeting Austin, TX March 2, 2012 MODELING DRIVEN FIELD TESTING Greg Barker, MEP Paul Norton, NERD C.E. Hancock, MEP Building America Residential Energy Efficiency Stakeholder Meeting Austin, TX March 2, 2012 MODELING DRIVEN MEASUREMENTS Greg Barker, MEP Paul Norton, NERD C.E. Hancock, MEP Building America Residential Energy Efficiency Stakeholder Meeting Austin, TX March 2, 2012 Building America Residential Energy Efficiency Stakeholder Meeting Austin, TX March 2, 2012 "Modeling without measuring lacks credibility. Measuring without modeling lacks generality." Ed Hancock

430

Sensitivity analysis of SPURR  

DOE Green Energy (OSTI)

The Solar Energy Research Institute has conducted a limited sensitivity analysis on a System for Projecting the Utilization of Renewable Resources (SPURR). The study utilized the Domestic Policy Review scenario for SPURR agricultural and industrial process heat and utility market sectors. This sensitivity analysis determines whether variations in solar system capital cost, operation and maintenance cost, and fuel cost (biomass only) correlate with intuitive expectations. The results of this effort contribute to a much larger issue: validation of SPURR. Such a study has practical applications for engineering improvements in solar technologies and is useful as a planning tool in the R and D allocation process.

Witholder, R.E.

1980-04-01T23:59:59.000Z

431

UCF WP TIPOVER ANALYSIS  

Science Conference Proceedings (OSTI)

The purpose of this analysis is to determine the structural response of the 21 pressurized water reactor (PWR) uncanistered fuel (UCF) waste package (WP) to a tipover design basis event (DBE) dynamic load; the results will be reported in terms of stress magnitudes. Finite-element solution was performed by making use of the commercially available ANSYS finite-element code. A finite-element model of the waste package was developed and analyzed for a tipover DBE dynamic load. The results of this analysis were provided in tables and were also plotted in terms of the maximum stress contours to determine their locations.

Z. Ceylan

1998-04-28T23:59:59.000Z

432

Analysis of oil-shale products using a multitechnique approach  

DOE Green Energy (OSTI)

Inorganic analysis of solid, liquid, particulate, and gaseous samples from the Paraho Semiworks Retort was completed using a multi-technique approach. Most of the techniques used instrumental methods, so that interferences from chemically complex matrices could be minimized. In many cases, analytical techniques were altered or improved in order to make them applicable to oil shale samples. The techniques employed for most of the analyses were a combination of instrumental neutron activation, energy dispersive x-ray fluorescence, flame atomic absorption spectroscopy and dc plasma emission spectroscopy. Additional analyses were performed by graphite furnace atomic absorption, cold vapor atomic absorption, and radiochemical activation. The data were statistically analyzed to determine the precision of each method and to see how closely the various techniques compared. Better than 10% comparisons between two or more of the techniques were obtained for analyses of Al, Ba, Ca, Cu, Fe, K, Mg, Mn, Na, Rb, Si, U, V, and Zn. Better than 20% comparisons were obtained for Cd, Cr, Mo and Ti. Systematic differences of about 15 to 20% between x-ray fluorescence and neutron activation determinations of arsenic were noted, with the neutron activation being generally higher. The environmentally interesting elements B, Hg, and Se could be reliably determined by only one method, so intercomparisons could not be made. Fluorine could not be reliably determined by any technique (selective ion electrode, colorimetry) that we tried. The data were also used to construct mass balances for 31 trace and major elements in the various effluents, including the offgas for the Paraho retort operating in the direct mode.

Fruchter, J.S.; Evans, J.C.

1980-12-01T23:59:59.000Z

433

Rugged fiber optic probes and sampling systems for remote chemical analysis via the Raman technique  

DOE Green Energy (OSTI)

Recent advances in fiber optics, diode lasers, CCD detectors, dielectric and holographic optical filters, grating spectrometers, and chemometric data analysis have greatly simplified Raman spectroscopy. In order to make a rugged fiber optic Raman probe for solids/slurries like these at Savannah River, we have designed a probe that eliminates as many optical elements and surfaces as possible. The diffuse reflectance probe tip is modified for Raman scattering by installing thin dielectric in-line filters. Effects of each filter are shown for the NaNO{sub 3} Raman spectrum. By using a diode laser excitation at 780 nm, fluorescence is greatly reduced, and excellent spectra may be obtained from organic solids. At SRS, fiber optic Raman probes are being developed for in situ chemical mapping of radioactive waste storage tanks. Radiation darkening of silica fiber optics is negligible beyond 700 nm. Corrosion resistance is being evaluated. Analysis of process gas (off-gas from SRS processes) is investigated in some detail: hydrogen in nitrogen with NO{sub 2} interference. Other applications and the advantages of the method are pointed out briefly.

Nave, S.E.

1996-07-01T23:59:59.000Z

434

Failure Analysis of Titanium Dental Implants  

Science Conference Proceedings (OSTI)

Analysis of a Bucketwheel Stacker Reclaimer Structural Failure · Analysis of Glass Breakage · Analysis of Sealed, Integrated, Automotive Wheel Bearings.

435

Country Analysis Briefs  

Reports and Publications (EIA)

An ongoing compilation of country energy profiles. EIA maintains Country Analysis Briefs (CABs) for specific countries that are important to world energy markets, including members of the Organization of the Petroleum Exporting Countries (OPEC), major non-OPEC oil producers, major energy transit countries, major energy consumers, and other areas of current interest to energy analysts and policy makers.

Joe Ayoub

436

Regularized nonsymmetric correspondence analysis  

Science Conference Proceedings (OSTI)

Nonsymmetric correspondence analysis (NSCA) is designed to analyze two-way contingency tables in which rows and columns assume an asymmetric role, e.g., columns depend on rows, but not vice versa. A ridge type of regularization was incorporated into ...

Yoshio Takane; Sunho Jung

2009-06-01T23:59:59.000Z

437

Fuel Cell Technologies Office: Systems Analysis  

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

Office: Systems Analysis on AddThis.com... Home Analysis Methodologies DOE H2A Analysis Scenario Analysis Quick Links Hydrogen Production Hydrogen Delivery Hydrogen Storage Fuel...

438

NID Copper Sample Analysis  

SciTech Connect

The current focal point of the nuclear physics program at PNNL is the MAJORANA DEMONSTRATOR, and the follow-on Tonne-Scale experiment, a large array of ultra-low background high-purity germanium detectors, enriched in 76Ge, designed to search for zero-neutrino double-beta decay (0???). This experiment requires the use of germanium isotopically enriched in 76Ge. The MAJORANA DEMONSTRATOR is a DOE and NSF funded project with a major science impact. The DEMONSTRATOR will utilize 76Ge from Russia, but for the Tonne-Scale experiment it is hoped that an alternate technology, possibly one under development at Nonlinear Ion Dynamics (NID), will be a viable, US-based, lower-cost source of separated material. Samples of separated material from NID require analysis to determine the isotopic distribution and impurities. DOE is funding NID through an SBIR grant for development of their separation technology for application to the Tonne-Scale experiment. The Environmental Molecular Sciences facility (EMSL), a DOE user facility at PNNL, has the required mass spectroscopy instruments for making isotopic measurements that are essential to the quality assurance for the MAJORANA DEMONSTRATOR and for the development of the future separation technology required for the Tonne-Scale experiment. A sample of isotopically separated copper was provided by NID to PNNL in January 2011 for isotopic analysis as a test of the NID technology. The results of that analysis are reported here. A second sample of isotopically separated copper was provided by NID to PNNL in August 2011 for isotopic analysis as a test of the NID technology. The results of that analysis are also reported here.

Kouzes, Richard T.; Zhu, Zihua

2011-09-12T23:59:59.000Z

439

NREL: Energy Analysis Home Page  

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

Examples of NREL Analysis Impacts Examples of NREL Analysis Impacts Resource Assessment Electric Sector Integration Jobs and Economic Competitiveness Geospatial Analysis Life Cycle Assessment Harmonization Analysis of Project Finance Analysis at NREL aims to increase the understanding of the current and future interactions and roles of energy policies, markets, resources, technologies, environmental impacts, and infrastructure. NREL analysis, data, and tools inform decisions as energy-efficient and renewable energy technologies advance from concept to commercial application. Learn more about NREL's analysis by downloading Realizing a Clean Energy Future: Highlights of NREL Analysis . Featured Analysis Realizing a Clean Energy Future: Highlights of NREL Analysis (Brochure) Status and Trends in the Green Power Market (2012 Data)

440

Documented Safety Analysis  

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

Documented Safety Analysis Documented Safety Analysis FUNCTIONAL AREA GOAL: A document that provides an adequate description of the hazards of a facility during its design, construction, operation, and eventual cleanup and the basis to prescribe operating and engineering controls through Technical Safety Requirements (TSR) or Administrative Controls (AC). REQUIREMENTS: ï‚· 10 CFR 830.204, Nuclear Safety Rule ï‚· DOE-STD-1027-92, Hazard Categorization, 1992. ï‚· DOE-STD-1104-96, Change Notice 1, Review and Approval of Nuclear Facility Safety Basis Documents (documented Safety Analyses and Technical Safety Requirements), dated May 2002. ï‚· DOE-STD-3009-2002, Preparation Guide for U. S. Department of Energy Nonreactor Nuclear Facility Documented Safety Analyses, Change Notice No. 2, April 2002.

Note: This page contains sample records for the topic "analysis icp interference" 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

NETL: Energy Analysis - Instructions  

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

Analysis Analysis Instructions Using the Database In this search form you can search using the following tools: Title and Synopsis/Keywords Author Program/Technology Publication Type Publication Date Title and Synopsis/Keywords Enter as many keywords as needed but remember that all keywords would have to be included within the Title/Synopsis to receive a return. Select the KEYWORD SEARCH checkbox if you want it to return on any word. For greater returns, limit the amount of keywords entered per search. Use the plus sign (+) to search for a multi-word phrase. For example, to find the phrase "2010 Coal Database", enter "2010+Coal+Database". This will return results that contain matches on this three word phrase. Author It is best to search on an author's last name since first name might be stored as initials or an abbreviation such as Tom or Thomas.

442

analysis | OpenEI  

Open Energy Info (EERE)

85 85 Varnish cache server Browse Upload data GDR 429 Throttled (bot load) Error 429 Throttled (bot load) Throttled (bot load) Guru Meditation: XID: 2142253885 Varnish cache server analysis Dataset Summary Description This data indicates the range of recent cost estimates for renewable energy and other technologies. The estimates are shown in dollars per installed kilowatts of generating capacity. This data provides a compilation of available national-level cost data from a variety of sources. Costs in your specific location will vary. All costs are in 2006 dollars per installed kilowatts in the United States. Source NREL Date Released August 06th, 2009 (5 years ago) Date Updated August 06th, 2009 (5 years ago) Keywords analysis Department of Energy DOE National Renewable Energy Laboratory

443

Risk Analysis and Simulation  

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

Analysis and Simulation Analysis and Simulation for Geologic Storage of CO 2 BEST PRACTICES for: 2013 Revised Edition Disclaimer This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference therein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof. The

444

Local entropy generation analysis  

SciTech Connect

Second law analysis techniques have been widely used to evaluate the sources of irreversibility in components and systems of components but the evaluation of local sources of irreversibility in thermal processes has received little attention. While analytical procedures for evaluating local entropy generation have been developed, applications have been limited to fluid flows with analytical solutions for the velocity and temperature fields. The analysis of local entropy generation can be used to evaluate more complicated flows by including entropy generation calculations in a computational fluid dynamics (CFD) code. The research documented in this report consists of incorporating local entropy generation calculations in an existing CFD code and then using the code to evaluate the distribution of thermodynamic losses in two applications: an impinging jet and a magnetic heat pump. 22 refs., 13 figs., 9 tabs.

Drost, M.K.; White, M.D.

1991-02-01T23:59:59.000Z

445

Visualization and data analysis  

Science Conference Proceedings (OSTI)

Talk about Visualization and Data Analysis Current State and Exascale challenges. The goal is to update with colleagues our current status in our research. What challenges we need to face, and what future possibilities. Our goal is to propose to approach the problems with the visualization approach operating on the supercomputing platform. This presentation is about the L2 Milestone, we intend to discuss further possibilities of enhancing our results and optimizing our solutions.

Ahrens, James P [Los Alamos National Laboratory; Rodgers, David [SNL; Springmeyer, Becky [LLNL

2010-12-21T23:59:59.000Z

446

Country Analysis Briefs  

Reports and Publications (EIA)

An ongoing compilation of country background information profiles. Country Analysis Briefs (CABs) for specific countries or geographical areas that are important to world energy markets are maintained, including members of the Organization of Petroleum Exporting Countries (OPEC), major nonOPEC oil producers (i.e., the North Sea, Russia), major energy transit areas (i.e., Ukraine), and other areas of current interest to energy analysts and policy makers.

Joe Ayoub

447

SAMPLING AND ANALYSIS PROTOCOLS  

SciTech Connect

Radiological sampling and analyses are performed to collect data for a variety of specific reasons covering a wide range of projects. These activities include: Effluent monitoring; Environmental surveillance; Emergency response; Routine ambient monitoring; Background assessments; Nuclear license termination; Remediation; Deactivation and decommissioning (D&D); and Waste management. In this chapter, effluent monitoring and environmental surveillance programs at nuclear operating facilities and radiological sampling and analysis plans for remediation and D&D activities will be discussed.

Jannik, T; P Fledderman, P

2007-02-09T23:59:59.000Z

448

Country Analysis Briefs, 1994  

Reports and Publications (EIA)

An ongoing compilation of country background information profiles. Country Analysis Briefs (CABs) for specific countries or geographical areas that are important to world energy markets are maintained, including members of the Organization of Petroleum Exporting Countries (OPEC), major nonOPEC oil producers (i.e., the North Sea, Russia), major energy transit areas (i.e., Ukraine), and other areas of current interest to energy analysts and policy makers.

Information Center

1995-05-01T23:59:59.000Z

449

Residual gas analysis device  

SciTech Connect

A system is provided for testing the hermeticity of a package, such as a microelectromechanical systems package containing a sealed gas volume, with a sampling device that has the capability to isolate the package and breach the gas seal connected to a pulse valve that can controllably transmit small volumes down to 2 nanoliters to a gas chamber for analysis using gas chromatography/mass spectroscopy diagnostics.

Thornberg, Steven M. (Peralta, NM)

2012-07-31T23:59:59.000Z

450

NID Copper Sample Analysis  

Science Conference Proceedings (OSTI)

The current focal point of the nuclear physics program at PNNL is the MAJORANA DEMONSTRATOR, and the follow-on Tonne-Scale experiment, a large array of ultra-low background high-purity germanium detectors, enriched in 76Ge, designed to search for zero-neutrino double-beta decay (0???). This experiment requires the use of germanium isotopically enriched in 76Ge. The DEMONSTRATOR will utilize 76Ge from Russia, but for the Tonne-Scale experiment it is hoped that an alternate technology under development at Nonlinear Ion Dynamics (NID) will be a viable, US-based, lower-cost source of separated material. Samples of separated material from NID require analysis to determine the isotopic distribution and impurities. The MAJORANA DEMONSTRATOR is a DOE and NSF funded project with a major science impact. DOE is funding NID through an SBIR grant for development of their separation technology for application to the Tonne-Scale experiment. The Environmental Molecular Sciences facility (EMSL), a DOE user facility at PNNL, has the required mass spectroscopy instruments for making these isotopic measurements that are essential to the quality assurance for the MAJORANA DEMONSTRATOR and for the development of the future separation technology required for the Tonne-Scale experiment. A sample of isotopically separated copper was provided by NID to PNNL for isotopic analysis as a test of the NID technology. The results of that analysis are reported here.

Kouzes, Richard T.; Zhu, Zihua

2011-02-01T23:59:59.000Z

451

The Basis for Developing Samarium AMS for Fuel Cycle Analysis  

SciTech Connect

Modeling of nuclear reactor fuel burnup indicates that the production of samarium isotopes can vary significantly with reactor type and fuel cycle. The isotopic concentrations of {sup 146}Sm, {sup 149}Sm, and {sup 151}Sm are potential signatures of fuel reprocessing, if analytical techniques can overcome the inherent challenges of lanthanide chemistry, isobaric interferences, and mass/charge interferences. We review the current limitations in measurement of the target samarium isotopes and describe potential approaches for developing Sm-AMS. AMS sample form and preparation chemistry will be discussed as well as possible spectrometer operating conditions.

Buchholz, B A; Biegalski, S R; Whitney, S M; Tumey, S J; Weaver, C J

2008-10-13T23:59:59.000Z

452

Singular Value Decomposition Analysis and Canonical Correlation Analysis  

Science Conference Proceedings (OSTI)

The goal of singular value decomposition analysis (SVD) and canonical correlation analysis (CCA) is to isolate important coupled modes between two geophysical fields of interest. In this paper the relationship between SVD and CCA is clarified. ...

Steve Cherry

1996-09-01T23:59:59.000Z

453

DOE Hydrogen Analysis Repository: Well-to-Wheels Analysis of...  

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

Well-to-Wheels Analysis of Hydrogen Fuel-Cell Vehicle Pathways in Shanghai Project Summary Full Title: Well-to-Wheels Analysis of Hydrogen Based Fuel-Cell Vehicle Pathways in...

454

NREL: Energy Analysis - Market Analysis Models and Tools  

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

Energy Analysis Search More Search Options Site Map Printable Version Market Analysis Models and Tools The following is a list of models and tools that are used for market...

455

Energy Efficiency Incentives Analysis Financial Analysis of Incentive  

E-Print Network (OSTI)

Energy Efficiency Incentives Analysis i LBNL-1598E Financial Analysis of Incentive Mechanisms to Promote Energy Efficiency: Case Study of a Prototypical Southwest Utility Technical Appendices Peter Office of Energy Efficiency and Renewable Energy, Weatherization and Intergovernmental Program

456

Geographically-Based Infrastructure Analysis  

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

Infrastructure Infrastructure Analysis Margo Melendez & Keith Parks January 26, 2006 Geographically-Based Infrastructure Analysis (GIA) Utilizes GIS, geographically segregated data, and transition expertise to add the spatial component to infrastructure analysis NREL Core Competencies * Geographic data, tools, and expertise * Flexibility to address a wide array of transition issues NREL Capability Diagram Geographically-based Infrastructure Analysis GIS Transportation Technologies & Systems Electric & Hydrogen Technologies Energy Analysis Office GIA Activities Previous and Ongoing * HYDS ME - Evaluates best infrastructure options * Interstate Infrastructure Analysis - Minimal infrastructure to facilitate interstate travel during transition New Analyses * Quantifying transitional hydrogen demand

457

Core Analysis | Open Energy Information  

Open Energy Info (EERE)

Core Analysis Core Analysis Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Core Analysis Details Activities (41) Areas (28) Regions (2) NEPA(0) Exploration Technique Information Exploration Group: Lab Analysis Techniques Exploration Sub Group: Rock Lab Analysis Parent Exploration Technique: Rock Lab Analysis Information Provided by Technique Lithology: Core analysis is done to define lithology. Stratigraphic/Structural: Core analysis can locate faults or fracture networks. Oriented core can give additional important information on anisotropy. Hydrological: Thermal: Thermal conductivity can be measured from core samples. Cost Information Low-End Estimate (USD): 2,000.00200,000 centUSD 2 kUSD 0.002 MUSD 2.0e-6 TUSD / 30 foot core Median Estimate (USD): 10,000.001,000,000 centUSD

458

NREL: Energy Analysis - Chris Webber  

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

is a member of the Data Analysis and Visualization Group in the Strategic Energy Analysis Center. Senior Cloud Engineer On staff since April 2011 Phone number: 303-275-4238...

459

Energy, Environmental & Economic Systems Analysis  

E-Print Network (OSTI)

Energy, Environmental & Economic Systems Analysis GTMax: A New Deregulated Power Market Analysis Tool Opportunity Decision and Information Sciences Division Center for Energy, Environmental & Economic hourly energy transactions, costs, and revenues. GTMax has a user-friendly geographical information

Kemner, Ken

460

Tensor analysis of spatial mechanisms  

Science Conference Proceedings (OSTI)

The position analysis of a general four-bar spatial mechanism is developed using tensor notation and operations. To exemplify the convenience of tensors in kinematic analysis the solution is obtained for a mechanism containing two revolute pairs of links ...

C. Y. Ho

1966-05-01T23:59:59.000Z

Note: This page contains sample records for the topic "analysis icp interference" 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

Melamine analysis at the forefront  

Science Conference Proceedings (OSTI)

Recent food safety scares involving melamine have put the development of new standards and methods for protein detection on the fast track Melamine analysis at the forefront Melamine analysis at the forefront ...

462

Safety of nöcker's strictness analysis  

Science Conference Proceedings (OSTI)

This paper proves correctness of Nöcker's method of strictness analysis, implemented in the Clean compiler, which is an effective way for strictness analysis in lazy functional languages based on their operational semantics. We improve upon the ...

Manfred Schmidt-schauss; David Sabel; Marko SchÜtz

2008-07-01T23:59:59.000Z

463

NREL: Energy Analysis - Jenny Melius  

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

of the Data Analysis and Visualization Group in the Strategic Energy Analysis Center. GIS Scientist II On staff since May 2011 Phone number: 303-275-4661 E-mail:...

464

Finiteness Analysis in Polynomial Time  

Science Conference Proceedings (OSTI)

To achieve the termination of offline partial evaluation, it is necessary to ensure that static variables assume boundedly many values during specialization. Various works have addressed the analysis of variable boundedness, also called finiteness analysis, ...

Chin Soon Lee

2002-09-01T23:59:59.000Z

465

The OVIS analysis architecture.  

SciTech Connect

This report summarizes the current statistical analysis capability of OVIS and how it works in conjunction with the OVIS data readers and interpolators. It also documents how to extend these capabilities. OVIS is a tool for parallel statistical analysis of sensor data to improve system reliability. Parallelism is achieved using a distributed data model: many sensors on similar components (metaphorically sheep) insert measurements into a series of databases on computers reserved for analyzing the measurements (metaphorically shepherds). Each shepherd node then processes the sheep data stored locally and the results are aggregated across all shepherds. OVIS uses the Visualization Tool Kit (VTK) statistics algorithm class hierarchy to perform analysis of each process's data but avoids VTK's model aggregation stage which uses the Message Passing Interface (MPI); this is because if a single process in an MPI job fails, the entire job will fail. Instead, OVIS uses asynchronous database replication to aggregate statistical models. OVIS has several additional features beyond those present in VTK that, first, accommodate its particular data format and, second, improve the memory and speed of the statistical analyses. First, because many statistical algorithms are multivariate in nature and sensor data is typically univariate, interpolation of data is required to provide simultaneous observations of metrics. Note that in this report, we will refer to a single value obtained from a sensor as a measurement while a collection of multiple sensor values simultaneously present in the system is an observation. A base class for interpolation is provided that abstracts the operation of converting multiple sensor measurements into simultaneous observations. A concrete implementation is provided that performs piecewise constant temporal interpolation of multiple metrics across a single component. Secondly, because calculations may summarize data too large to fit in memory OVIS analyses batches of observations at a time and aggregates these intermediate intra-process models as it goes before storing the final model for inter-process aggregation via database replication. This reduces the memory footprint of the analysis, interpolation, and the database client and server query processing. This also interleaves processing with the disk I/O required to fetch data from the database - also improving speed. This report documents how OVIS performs analyses and how to create additional analysis components that fetch measurements from the database, perform interpolation, or perform operations on streamed observations (such as model updates or assessments). The rest of this section outlines the OVIS analysis algorithm and is followed by sections specific to each subtask. Note that we are limiting our discussion for now to the creation of a model from a set of measurements, and not including the assessment of observations using a model. The same framework can be used for assessment but that use case is not detailed in this report.

Mayo, Jackson R.; Gentile, Ann C.; Brandt, James M.; De Sapio, Vincent; Thompson, David C.; Roe, Diana C.; Wong, Matthew H.; Pebay, Philippe Pierre

2010-07-01T23:59:59.000Z

466

Backfit Analysis Desktop Guide  

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

G 231.1-2 G 231.1-2 Approved: 08-20-03 OCCURRENCE REPORTING CAUSAL ANALYSIS GUIDE [This Guide describes suggested nonmandatory approaches for meeting requirements. Guides are not requirements documents and are not to be construed as requirements in any audit or appraisal for compliance with the parent Policy, Order, Notice, or Manual.] U.S. DEPARTMENT OF ENERGY Office of Environment, Safety and Health DISTRIBUTION: INITIATED BY: All Departmental Elements Office of Environment, Safety and Health DOE G 231.1-2 Page i 08-20-03 CONTENTS 1. PURPOSE ............................................................................................................................1 2. REFERENCES ....................................................................................................................1

467

Power Economic Analysis  

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

CRSP Management Center CRSP Management Center Western Area Power Administration January 2011 Power Economic Analysis of Operational Restrictions at Glen Canyon Dam In February, 1997, the operating criteria for Glen Canyon Dam were changed. Operation was restricted to a Modified Low Fluctuating Flow as described in the Operation of Glen Canyon Dam, Colorado River Storage Project, Arizona, Final Environmental Impact Statement, March, 1995. These restrictions reduced the operating flexibility of the hydroelectric power plant and therefore the economic value of the electricity it produced. The Environmental Impact Statement provided impact information to support the Record of Decision governing dam operations. The impact

468

Analysis in J_2  

E-Print Network (OSTI)

This is an expository paper in which I explain how core mathematics, particularly abstract analysis, can be developed within a concrete countable set J_2 (the second set in Jensen's constructible hierarchy). The implication, well-known to proof theorists but probably not to most mainstream mathematicians, is that ordinary mathematical practice does not require an enigmatic metaphysical universe of sets. I go further and argue that J_2 is a superior setting for normal mathematics because it is free of irrelevant set-theoretic pathologies and permits stronger formulations of existence results.

Nik Weaver

2005-09-11T23:59:59.000Z

469

Chemical exchange program analysis.  

SciTech Connect

As part of its EMS, Sandia performs an annual environmental aspects/impacts analysis. The purpose of this analysis is to identify the environmental aspects associated with Sandia's activities, products, and services and the potential environmental impacts associated with those aspects. Division and environmental programs established objectives and targets based on the environmental aspects associated with their operations. In 2007 the most significant aspect identified was Hazardous Materials (Use and Storage). The objective for Hazardous Materials (Use and Storage) was to improve chemical handling, storage, and on-site movement of hazardous materials. One of the targets supporting this objective was to develop an effective chemical exchange program, making a business case for it in FY07, and fully implementing a comprehensive chemical exchange program in FY08. A Chemical Exchange Program (CEP) team was formed to implement this target. The team consists of representatives from the Chemical Information System (CIS), Pollution Prevention (P2), the HWMF, Procurement and the Environmental Management System (EMS). The CEP Team performed benchmarking and conducted a life-cycle analysis of the current management of chemicals at SNL/NM and compared it to Chemical Exchange alternatives. Those alternatives are as follows: (1) Revive the 'Virtual' Chemical Exchange Program; (2) Re-implement a 'Physical' Chemical Exchange Program using a Chemical Information System; and (3) Transition to a Chemical Management Services System. The analysis and benchmarking study shows that the present management of chemicals at SNL/NM is significantly disjointed and a life-cycle or 'Cradle-to-Grave' approach to chemical management is needed. This approach must consider the purchasing and maintenance costs as well as the cost of ultimate disposal of the chemicals and materials. A chemical exchange is needed as a mechanism to re-apply chemicals on site. This will not only reduce the quantity of unneeded chemicals and the amount spent on new purchases, but will also avoid disposal costs. If SNL/NM were to realize a 5 percent reduction in chemical inventory and a 10 percent reduction in disposal of unused chemicals the total savings would be $189, 200 per year.

Waffelaert, Pascale

2007-09-01T23:59:59.000Z

470

Arundo Donax Analysis Report  

DOE Green Energy (OSTI)

This is a summary report of preliminary analysis conducted on Arundo Donax. Arundo Donax was received from Greenwood Resources via Portland General Electric. PGE plans to transition a coal-fired boiler to 100% biomass by 2020, and has partnered with EPRI and INL to conduct the necessary testing and development to understand what needs to take place to make this transition. Arundo Donax is a promising energy crop for biopower, and is as yet relatively untested and uncharacterized. The INL has begun initial characterization of this material, and this summary report presents the initial findings.

Corrie I. Nichol, Ph.D.; Tyler L. Westover, Ph.D.

2012-01-01T23:59:59.000Z

471

NREL: Energy Analysis - Ted Quinby  

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

Areas of expertise Application development Geospatial analysis and modeling Database design Project management Primary research interests Applying innovative mapping and...

472

Renewable Fuels Legislation Impact Analysis  

Reports and Publications (EIA)

An analysis based on an extension of the ethanol supply curve in our model to allow for enough ethanol production to meet the requirements of S. 650. This analysis provides an update of the May 23, 2005 analysis, with revised ethanol production and cost assumptions.

Information Center

2005-07-01T23:59:59.000Z

473

Cross-impacts analysis development and energy policy analysis applications  

Science Conference Proceedings (OSTI)

Purpose of this report is to describe the cross-impact analysis process and microcomputer software developed for the Office of Policy, Planning, and Analysis (PPA) of DOE. First introduced in 1968, cross-impact analysis is a technique that produces scenarios of future conditions and possibilities. Cross-impact analysis has several unique attributes that make it a tool worth examining, especially in the current climate when the outlook for the economy and several of the key energy markets is uncertain. Cross-impact analysis complements the econometric, engineering, systems dynamics, or trend approaches already in use at DOE. Cross-impact analysis produces self-consistent scenarios in the broadest sense and can include interaction between the economy, technology, society and the environment. Energy policy analyses that couple broad scenarios of the future with detailed forecasting can produce more powerful results than scenario analysis or forecasts can produce alone.

Roop, J.M.; Scheer, R.M.; Stacey, G.S.

1986-12-01T23:59:59.000Z

474

Advanced PFBC transient analysis  

SciTech Connect

Transient modeling and analysis of advanced Pressurized Fluidized Bed Combustion (PFBC) systems is a research area that is currently under investigation by the US Department of Energy`s Federal Energy Technology Center (FETC). The object of the effort is to identify key operating parameters that affect plant performance and then quantify the basic response of major sub-systems to changes in operating conditions. PC-TRAX{trademark}, a commercially available dynamic software program, was chosen and applied in this modeling and analysis effort. This paper describes the development of a series of TRAX-based transient models of advanced PFBC power plants. These power plants burn coal or other suitable fuel in a PFBC, and the high temperature flue gas supports low-Btu fuel gas or natural gas combustion in a gas turbine topping combustor. When it is utilized, the low-Btu fuel gas is produced in a bubbling bed carbonizer. High temperature, high pressure combustion products exiting the topping combustor are expanded in a modified gas turbine to generate electrical power. Waste heat from the system is used to raise and superheat steam for a reheat steam turbine bottoming cycle that generates additional electrical power. Basic control/instrumentation models were developed and modeled in PC-TRAX and used to investigate off-design plant performance. System performance for various transient conditions and control philosophies was studied.

White, J.S. [Parsons Power Group, Inc., Reading, PA (United States); Bonk, D.L. [USDOE Federal Energy Technology Center, Morgantown, WV (United States)

1997-05-01T23:59:59.000Z

475

Advanced PFBC transient analysis  

SciTech Connect

Transient modeling and analysis of Advanced Pressurized Fluidized Bed Combustion (PFBC) systems is a research area that is currently under investigative study by the United States Department of Energy`s Morgantown Energy Technology Center (METC). The object of the effort is to identify key operating parameters affecting plant performance and then quantify the basic response of major sub-systems to changes in operating conditions. PC-TRAX, a commercially available dynamic software program, was chosen and applied in this modeling and analysis effort. This paper summarizes and describes the development of a series of TRAX-based transient models of Advanced PFBC power plants. These power plants generate a high temperature flue gas by burning coal or other suitable fuel in a PFBC. The high temperature flue gas supports low-Btu fuel gas or natural gas combustion in a gas turbine topping combustor. When utilized, low-Btu fuel gas is produced in a bubbling bed carbonizer. High temperature, high pressure combustion products exiting the topping combustor are expanded in a modified gas turbine to generate electrical power. Waste heat from the system is used to generate and superheat steam for a reheat steam turbine bottoming cycle that generates additional electrical power. Basic control/instrumentation models were developed and modeled in PC-TRAX and used to investigate off-design plant performance. System performance for various transient conditions and control philosophies was studied.

White, J.S. [Parsons Power Group, Inc., Reading, PA (United States); Bonk, D.L.; Rogers, L. [USDOE Morgantown Energy Technology Center, WV (United States)

1996-12-31T23:59:59.000Z

476

ASAP distributed analysis  

E-Print Network (OSTI)

ASAP is a job creation and management framework used by CMS physicists to perform data analysis using the Grid. ASAP hides many of the low-level details of the Grid so that physicists can distribute their work across the Grid to take advantage of the available CPU power and access the stored data. There is also a server side component to, which users can delegate responsibility for their jobs. The server monitors the status of jobs and resubmits in the case of Grid or application failure The Grid provides the computing and storage resources necessary for the analysis and storage of large volumes of High Energy Physics data. ASAP provides a layer over the standard grid job management tools, which means that users do not have to be concerned with the details of job creation, submission and monitoring. The presence of the server side component increases the chances of the users’ jobs being successfully completed. The main concerns are the performance and reliability of jobs. In addition documentation is often ...

Munro, Craig; Khan, Akram

2007-01-01T23:59:59.000Z

477

Mitigation analysis for Estonia  

SciTech Connect

The present report provides data on the mitigation analysis of Estonia. The results for energy, forest and agricultural sectors and macro-economic analysis are given. The Government of Estonia has identified the development of energy production as the main strategical means in the movement towards market economy. Now 99% of electricity generation and about 25% of heat production in Estonia is based on oil shale combustion. To increase the efficiency of oil shale-fired power plants and decrease CO{sub 2} emissions, the State Enterprise (SE) Eesti Energia (Estonian Energy) is planning to reconstruct these power plants and introduce the Circulating Fluidized Bed (CFB) combustion technology for oil shale burning to replace the Pulverized Combustion (PC). According to the Estonian Forest Policy, two general objectives are of importance: sustainability in forestry and efficiency in forest management. For the reduction of greenhouse gases (GHG) emissions from agriculture, it is necessary to increase the efficiency of production resource usage. The growth of the GDP in 1995 was 2.9% as a result of large-scale privatization activities in Estonia and re-introduction of the available, but unused production capacities with the help of foreign and domestic investments. It is assumed that the medium growth rate of GDP reaches 6% in 1998.

Martins, A.; Roos, J.; Pesur, A. [Inst. of Energy Research, Tallinn (Estonia)] [and others

1996-09-01T23:59:59.000Z

478

Crude Oil Analysis Database  

DOE Data Explorer (OSTI)

The composition and physical properties of crude oil vary widely from one reservoir to another within an oil field, as well as from one field or region to another. Although all oils consist of hydrocarbons and their derivatives, the proportions of various types of compounds differ greatly. This makes some oils more suitable than others for specific refining processes and uses. To take advantage of this diversity, one needs access to information in a large database of crude oil analyses. The Crude Oil Analysis Database (COADB) currently satisfies this need by offering 9,056 crude oil analyses. Of these, 8,500 are United States domestic oils. The database contains results of analysis of the general properties and chemical composition, as well as the field, formation, and geographic location of the crude oil sample. [Taken from the Introduction to COAMDATA_DESC.pdf, part of the zipped software and database file at http://www.netl.doe.gov/technologies/oil-gas/Software/database.html] Save the zipped file to your PC. When opened, it will contain PDF documents and a large Excel spreadsheet. It will also contain the database in Microsoft Access 2002.

Shay, Johanna Y.

479

Cesium capsule thermal analysis  

SciTech Connect

Double-walled stainless steel capsules, produced by the Hanford Waste Encapsulation and Storage Facility (WESF), were designed to facilitate storage of radioactive cesium chloride (CsCl). The capsules were later determined to be a useful resource for irradiation facilities (IFs), and are currently being used at several commercial IFs. A capsule at one of these facilities recently failed, resulting in a release of the CsCl. A thermal analysis of a WESF capsule was performed by Pacific Northwest Laboratory (PNL) at the request of Westinghouse Hanford Company. In this analysis, parametric calculations demonstrates the impact that various parameters have on the temperature distribution within a capsule in a commercial irradiation facility. Specifically, the effect of varying the gas gap conductivity, the exterior heat sink temperatures, the exterior heat transfer distribution, the stainless steel emissivity, and the gamma heating rate were addressed. In addition, a calculation was performed to estimate the highest temperatures likely to have been encountered in one of these capsules. 8 refs., 17 figs., 4 tabs.

Eyler, L.L.; Dodge, R.E.

1989-12-01T23:59:59.000Z

480

B plant mission analysis report  

SciTech Connect

This report further develops the mission for B Plant originally defined in WHC-EP-0722, ``System Engineering Functions and Requirements for the Hanford Cleanup Mission: First Issue.`` The B Plant mission analysis will be the basis for a functional analysis that breaks down the B Plant mission statement into the necessary activities to accomplish the mission. These activities are the product of the functional analysis and will then be used in subsequent steps of the systems engineering process, such as identifying requirements and allocating those requirements to B Plant functions. The information in this mission analysis and the functional and requirements analysis are a part of the B Plant technical baseline.

Lund, D.P.

1995-05-24T23:59:59.000Z

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


481

Fringe jump analysis and electronic corrections for the Tore Supra far infrared interferometer  

SciTech Connect

On the Tore Supra tokamak, the ten-channel far infrared interferometer consists of a double color (119 and 195 {mu}m) system with two detectors for each channel to measure the plasma density. The phase measurement is obtained by combining a 100 kHz shifted reference beam with the probing beam that has crossed the plasma. The achieved precision--a few percent of a fringe--is very good compared with the expected variations due to plasma, which are on the order of several fringes. However, the counting of the fringe variations can be affected when the signal is perturbed by electromagnetic interferences or when it deviates in the presence of strong plasma refraction changes occurring during ICRH breakdowns, pellet injections, or disruptions. This induces a strong decrease in the reliability of the measurement, which is an important concern when the diagnostic is used for density control. We describe in this paper the renewing of the electronics that has been achieved to reduce and correct the number of the so-called fringe jumps. A new zero crossing method for phase measurement is used, together with a field programable gate array semiconductor integration, to measure the phase and activate the algorithm of corrections every 10 {mu}s. Comparisons between a numerical oscilloscope analysis and the corrected acquired data in the case of laboratory amplitude modulation tests and in the case of real plasma perturbations are also discussed.

Gil, C.; Barbuti, A.; Elbeze, D.; Pastor, P.; Philip, J.; Toulouse, L. [CEA, IRFM, F-13108 Saint Paul Lez Durance (France)

2008-10-15T23:59:59.000Z

482

Supplement Analysis Plutonium Consolidation  

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

9-SA-4 9-SA-4 SUPPLEMENT ANALYSIS STORAGE OF SURPLUS PLUTONIUM MATERIALS AT THE SAVANNAH RIVER SITE INTRODUCTION AND PURPOSE In April 2002, DOE decided to immediately consolidate long-term storage at the Savannah River Site (SRS) of surplus, non-pit weapons-usable plutonium then stored at the Rocky Flats Environmental Technology Site (RFETS) (DOE, 2002a). That 2002 decision did not affect an earlier DOE decision made in the January 21, 1997, Record of Decision (ROD, DOE, 1997) for the Storage and Disposition of Weapons-Usable Fissile Materials Programmatic Environmental Impact Statement (Storage and Disposition PEIS, DOE, 1996) to continue storage of non-pit surplus plutonium at Hanford, the Idaho National Laboratory (INL), and the Los Alamos

483

A Bioinformatic Analysis  

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

Bioinformatic Bioinformatic Analysis of NAC Genes for Plant Cell Wall Development in Relation to Lignocellulosic Bioenergy Production Hui Shen & Yanbin Yin & Fang Chen & Ying Xu & Richard A. Dixon Published online: 16 October 2009 # Springer Science + Business Media, LLC. 2009 Abstract NAM, ATAF, and CUC2 (NAC) proteins are encoded by one of the largest plant-specific transcription factor gene families. The functions of many NAC proteins relate to different aspects of lignocellulosic biomass produc- tion, and a small group of NAC transcription factors has been characterized as master regulators of plant cell wall develop- ment. In the present study, a total of 1,232 NAC protein sequences from 11 different organisms were analyzed by sequence phylogeny based on protein DNA-binding domains. We included eight whole genomes (Arabidopsis, rice, poplar, grape, sorghum, soybean,

484

Analysis5_.PDF  

Gasoline and Diesel Fuel Update (EIA)

September 1999 September 1999 The Impact of Temperature Trends on Short-Term Energy Demand by Michael Morris The past few years have witnessed unusually warm weather, as evidenced by both mild winters and hot summers. The most recent winter was the second warmest on record, and the summer of 1998 set new U.S. and worldwide temperature records. Climatologists have concluded that the recent spate of unusually warm weather is part of a warming trend that dates to 1965, and that this trend is likely to continue. The trend has also exhibited distinct seasonal and regional variations: winters have experienced a greater warming trend than other seasons, and the West has been more prone to warming than the rest of the Lower-48 states. The analysis shows that the 30-year norms--the basis of weather-related energy demand projections--do

485

Ultrasound Analysis Of Slurries  

DOE Patents (OSTI)

An autoclave reactor allows for the ultrasonic analysis of slurry concentration and particle size distribution at elevated temperatures and pressures while maintaining the temperature- and pressure-sensitive ultrasonic transducers under ambient conditions. The reactor vessel is a hollow stainless steel cylinder containing the slurry which includes a stirrer and a N.sub.2 gas source for directing gas bubbles through the slurry. Input and output transducers are connected to opposed lateral portions of the hollow cylinder for respectively directing sound waves through the slurry and receiving these sound waves after transmission through the slurry, where changes in sound wave velocity and amplitude can be used to measure slurry parameters. Ultrasonic adapters connect the transducers to the reactor vessel in a sealed manner and isolate the transducers from the hostile conditions within the vessel without ultrasonic signal distortion or losses.

Soong, Yee (Monroeville, PA); Blackwell, Arthur G. (Duquesne, PA)

2005-11-01T23:59:59.000Z

486

Integrated fluorescence analysis system  

DOE Patents (OSTI)

An integrated fluorescence analysis system enables a component part of a sample to be virtually sorted within a sample volume after a spectrum of the component part has been identified from a fluorescence spectrum of the entire sample in a flow cytometer. Birefringent optics enables the entire spectrum to be resolved into a set of numbers representing the intensity of spectral components of the spectrum. One or more spectral components are selected to program a scanning laser microscope, preferably a confocal microscope, whereby the spectrum from individual pixels or voxels in the sample can be compared. Individual pixels or voxels containing the selected spectral components are identified and an image may be formed to show the morphology of the sample with respect to only those components having the selected spectral components. There is no need for any physical sorting of the sample components to obtain the morphological information.

Buican, Tudor N. (Los Alamos, NM); Yoshida, Thomas M. (Los Alamos, NM)

1992-01-01T23:59:59.000Z

487

Reactor hot spot analysis  

SciTech Connect

The principle methods for performing reactor hot spot analysis are reviewed and examined for potential use in the Applied Physics Division. The semistatistical horizontal method is recommended for future work and is now available as an option in the SE2-ANL core thermal hydraulic code. The semistatistical horizontal method is applied to a small LMR to illustrate the calculation of cladding midwall and fuel centerline hot spot temperatures. The example includes a listing of uncertainties, estimates for their magnitudes, computation of hot spot subfactor values and calculation of two sigma temperatures. A review of the uncertainties that affect liquid metal fast reactors is also presented. It was found that hot spot subfactor magnitudes are strongly dependent on the reactor design and therefore reactor specific details must be carefully studied. 13 refs., 1 fig., 5 tabs.

Vilim, R.B.

1985-08-01T23:59:59.000Z

488

SDI CFD MODELING ANALYSIS  

SciTech Connect

The Savannah River Remediation (SRR) Organization requested that Savannah River National Laboratory (SRNL) develop a Computational Fluid Dynamics (CFD) method to mix and blend the miscible contents of the blend tanks to ensure the contents are properly blended before they are transferred from the blend tank; such as, Tank 50H, to the Salt Waste Processing Facility (SWPF) feed tank. The work described here consists of two modeling areas. They are the mixing modeling analysis during miscible liquid blending operation, and the flow pattern analysis during transfer operation of the blended liquid. The transient CFD governing equations consisting of three momentum equations, one mass balance, two turbulence transport equations for kinetic energy and dissipation rate, and one species transport were solved by an iterative technique until the species concentrations of tank fluid were in equilibrium. The steady-state flow solutions for the entire tank fluid were used for flow pattern analysis, for velocity scaling analysis, and the initial conditions for transient blending calculations. A ser