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Note: This page contains sample records for the topic "method analytical method" from the National Library of EnergyBeta (NLEBeta).
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1

ANALYTICAL METHODS in CHEMICAL ECOLOGY  

E-Print Network [OSTI]

ANALYTICAL METHODS in CHEMICAL ECOLOGY a post graduate course (doktorandkurs) when: February 10 ­ 28, 2014 where: Chemical Ecology, Plant Protection Biology, Swedish University of Agriculture (SLU to modern analytical methods used in Chemical Ecological and Ecotoxicological research, such as: methods

2

Analytical methods under emergency conditions  

SciTech Connect (OSTI)

This lecture discusses methods for the radiochemical determination of internal contamination of the body under emergency conditions, here defined as a situation in which results on internal radioactive contamination are needed quickly. The purpose of speed is to determine the necessity for medical treatment to increase the natural elimination rate. Analytical methods discussed include whole-body counting, organ counting, wound monitoring, and excreta analysis. 12 references. (ACR)

Sedlet, J.

1983-01-01T23:59:59.000Z

3

Hydrogen Fuel Quality - Focus: Analytical Methods Development...  

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

Fuel Quality - Focus: Analytical Methods Development & Hydrogen Fuel Quality Results Hydrogen Fuel Quality - Focus: Analytical Methods Development & Hydrogen Fuel Quality Results...

4

Nuclear analytical methods: Past, present and future  

SciTech Connect (OSTI)

The development of nuclear analytical methods as an analytical tool began in 1936 with the publication of the first paper on neutron activation analysis (NAA). This year, 1996, marks the 60th anniversary of that event. This paper attempts to look back at the nuclear analytical methods of the past, to look around and to see where the technology is right now, and finally, to look ahead to try and see where nuclear methods as an analytical technique (or as a group of analytical techniques) will be going in the future. The general areas which the author focuses on are: neutron activation analysis; prompt gamma neutron activation analysis (PGNAA); photon activation analysis (PAA); charged-particle activation analysis (CPAA).

Becker, D.A. [National Inst. of Standards and Technology, Gaithersburg, MD (United States)

1996-12-31T23:59:59.000Z

5

Method of identity analyte-binding peptides  

DOE Patents [OSTI]

A method for affinity chromatography or adsorption of a designated analyte utilizes a paralog as the affinity partner. The immobilized paralog can be used in purification or analysis of the analyte; the paralog can also be used as a substitute for antibody in an immunoassay. The paralog is identified by screening candidate peptide sequences of 4--20 amino acids for specific affinity to the analyte. 5 figs.

Kauvar, L.M.

1990-10-16T23:59:59.000Z

6

Quality by Design Compliant Analytical Method Validation  

Science Journals Connector (OSTI)

To lighten the workload, impurities and degradation products could be ranked following a risk analysis such as failure mode and effects analysis (FMEA). ... These sources could be valuably selected from a risk analysis such as FMEA performed during the method development phase. ...

E. Rozet; E. Ziemons; R.D. Marini; B. Boulanger; Ph. Hubert

2011-11-22T23:59:59.000Z

7

Analytical techniques for instrument design -- Matrix methods  

SciTech Connect (OSTI)

The authors take the traditional Cooper-Nathans approach, as has been applied for many years for steady-state triple-axis spectrometers, and consider its generalization to other inelastic scattering spectrometers. This involves a number of simple manipulations of exponentials of quadratic forms. In particular, they discuss a toolbox of matrix manipulations that can be performed on the 6-dimensional Cooper-Nathans matrix. They show how these tools can be combined to solve a number of important problems, within the narrow-band limit and the gaussian approximation. They will argue that a generalized program that can handle multiple different spectrometers could (and should) be written in parallel to the Monte-Carlo packages that are becoming available. They also discuss the complementarity between detailed Monte-Carlo calculations and the approach presented here. In particular, Monte-Carlo methods traditionally simulate the real experiment as performed in practice, given a model scattering law, while the Cooper-Nathans method asks the inverse question: given that a neutron turns up in a particular spectrometer configuration (e.g. angle and time of flight), what is the probability distribution of possible scattering events at the sample? The Monte-Carlo approach could be applied in the same spirit to this question.

Robinson, R.A.

1997-12-31T23:59:59.000Z

8

Simple Analytical and Graphical Tools for Carrier Based PWM Methods  

E-Print Network [OSTI]

energy conversion. Shown in Figure 1, the classical VSI generates a low frequency output voltage with conSimple Analytical and Graphical Tools for Carrier Based PWM Methods Ahmet M. Hava y Russel J tools for the study, performance evaluation, and design of the modern carrier based PWM methods which

Hava, Ahmet

9

SASSI Analytical Methods Compared with SHAKE Free-Field Results  

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

Analytical Methods Analytical Methods Compared with SHAKE Results Structural Mechanics - SRS October 4, 2011 1 Objective This study presents a methodology for validating SASSI for use with a particular site profile, foundation size, and embedment depth. Two case studies are presented: 1) a deep soil site at the Savannah River Site (SRS) 2) a shallow stiff soil site at the Hanford Waste Treatment Plant (WTP). Embedded box in SASSI is evaluated with Direct Method and (Modified) Subtraction method. 2 * Ground motion at the surface is deconvolved in SHAKE to the bottom of the soil column and then brought back to the surface in a SASSI embedded box model. * SASSI response spectra at the ground and foundation levels are

10

Neutron noise calculations using the Analytical Nodal Method and comparisons with analytical solutions  

E-Print Network [OSTI]

Neutron noise calculations using the Analytical Nodal Method and comparisons with analytical Available online 28 December 2010 Keywords: Neutron noise ANM Power reactor approximation 2-Group theory Diffusion theory a b s t r a c t In this study, the neutron noise, i.e. the stationary fluctuations

Demazière, Christophe

11

Validation of Analytic Methods for Biomarkers Used in Drug Development  

Science Journals Connector (OSTI)

...quasi-quantitative Regulatory requirement GLP...requires a systematic review of the analyte stability...method validation plan, a biomarker assay...intends to pave a regulatory pathway for biomarkers...validation as well as regulatory pathways for efficient...Journal Article Review | U01 GM063340-07...

Cindy H. Chau; Olivier Rixe; Howard McLeod; and William D. Figg

2008-10-01T23:59:59.000Z

12

E-Print Network 3.0 - analytical methods flambagem Sample Search...  

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

continuous calibration verification for analytical instruments use of method blanks... procedures, and NOAA's Analytical Quality Assurance Project Plan (QAPP). Samples were sent...

13

Hanford environmental analytical methods: Methods as of March 1990. Volume 3, Appendix A2-I  

SciTech Connect (OSTI)

This paper from the analytical laboratories at Hanford describes the method used to measure pH of single-shell tank core samples. Sludge or solid samples are mixed with deionized water. The pH electrode used combines both a sensor and reference electrode in one unit. The meter amplifies the input signal from the electrode and displays the pH visually.

Goheen, S.C.; McCulloch, M.; Daniel, J.L.

1993-05-01T23:59:59.000Z

14

Estimating Fuel Cycle Externalities: Analytical Methods and Issues, Report 2  

SciTech Connect (OSTI)

The activities that produce electric power typically range from extracting and transporting a fuel, to its conversion into electric power, and finally to the disposition of residual by-products. This chain of activities is called a fuel cycle. A fuel cycle has emissions and other effects that result in unintended consequences. When these consequences affect third parties (i.e., those other than the producers and consumers of the fuel-cycle activity) in a way that is not reflected in the price of electricity, they are termed ''hidden'' social costs or externalities. They are the economic value of environmental, health and any other impacts, that the price of electricity does not reflect. How do you estimate the externalities of fuel cycles? Our previous report describes a methodological framework for doing so--called the damage function approach. This approach consists of five steps: (1) characterize the most important fuel cycle activities and their discharges, where importance is based on the expected magnitude of their externalities, (2) estimate the changes in pollutant concentrations or other effects of those activities, by modeling the dispersion and transformation of each pollutant, (3) calculate the impacts on ecosystems, human health, and any other resources of value (such as man-made structures), (4) translate the estimates of impacts into economic terms to estimate damages and benefits, and (5) assess the extent to which these damages and benefits are externalities, not reflected in the price of electricity. Each step requires a different set of equations, models and analysis. Analysts generally believe this to be the best approach for estimating externalities, but it has hardly been used! The reason is that it requires considerable analysis and calculation, and to this point in time, the necessary equations and models have not been assembled. Equally important, the process of identifying and estimating externalities leads to a number of complex issues that also have not been fully addressed. This document contains two types of papers that seek to fill part of this void. Some of the papers describe analytical methods that can be applied to one of the five steps of the damage function approach. The other papers discuss some of the complex issues that arise in trying to estimate externalities. This report, the second in a series of eight reports, is part of a joint study by the U.S. Department of Energy (DOE) and the Commission of the European Communities (EC)* on the externalities of fuel cycles. Most of the papers in this report were originally written as working papers during the initial phases of this study. The papers provide descriptions of the (non-radiological) atmospheric dispersion modeling that the study uses; reviews much of the relevant literature on ecological and health effects, and on the economic valuation of those impacts; contains several papers on some of the more complex and contentious issues in estimating externalities; and describes a method for depicting the quality of scientific information that a study uses. The analytical methods and issues that this report discusses generally pertain to more than one of the fuel cycles, though not necessarily to all of them. The report is divided into six parts, each one focusing on a different subject area.

Barnthouse, L.W.; Cada, G.F.; Cheng, M.-D.; Easterly, C.E.; Kroodsma, R.L.; Lee, R.; Shriner, D.S.; Tolbert, V.R.; Turner, R.S.

1994-07-01T23:59:59.000Z

15

E-Print Network 3.0 - analytical chemistry methods Sample Search...  

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

Powered by Explorit Topic List Advanced Search Sample search results for: analytical chemistry methods Page: << < 1 2 3 4 5 > >> 1 Department of Chemistry Three Year Projection...

16

Analytical methods for determining the reactivity of pyrochemical salts  

SciTech Connect (OSTI)

Pyrochemical processes used for the purification of plutonium have generated quantities of residue that contain varying amounts of reactive metals such as potassium, sodium, calcium, and magnesium. These residues are currently considered hazardous and are being managed under RCRA because of the reactivity characteristic. This designation is based solely on process knowledge. Currently there is no approved procedure for determining the reactivity of a solid with water. A method is being developed to rapidly evaluate the reactivity of pyrochemical salts with water by measuring the rate of hydrogen generation. The method was initially tested with a magnesium containing pyrochemical salt. A detection limit of approximately 0.004 g of magnesium was established. A surrogate molten salt extraction residue was also tested. Extrapolation of test data resulted in a hydrogen generation rate of 4.4 mg/(g min).

Phillips, A.G.; Stakebake, J.L.

1994-05-01T23:59:59.000Z

17

Advancing Analytical Methods for Characterization of Anionic Carbohydrate Biopolymers  

E-Print Network [OSTI]

here a heparin disaccharide), IPR and C18 stationary phase;of a C18 column with the IPR which separates analytes via anseparation of tinzaparin where IPR used in A) TrBA, B) DBA,

Langeslay, Derek Joseph

2013-01-01T23:59:59.000Z

18

Analytical method of spectra calculations in the Bargmann representation  

E-Print Network [OSTI]

We formulate a universal method for solving an arbitrary quantum system which, in the Bargmann representation, is described by a system of linear equations with one independent variable, such as one- and multi-photon Rabi models, or $N$ level systems interacting with a single mode of the electromagnetic field and their various generalizations. We explain three types of conditions that determine the spectrum and show their usage for two deformations of the Rabi model. We prove that the spectra of both models are just zeros of transcendental functions, which in one case are given explicitly in terms of confluent Heun functions.

Andrzej J. Maciejewski; Maria Przybylska; Tomasz Stachowiak

2014-10-31T23:59:59.000Z

19

Analytical Chemistry Laboratory (ACL) procedure compendium. Volume 4, Organic methods  

SciTech Connect (OSTI)

This interim notice covers the following: extractable organic halides in solids, total organic halides, analysis by gas chromatography/Fourier transform-infrared spectroscopy, hexadecane extracts for volatile organic compounds, GC/MS analysis of VOCs, GC/MS analysis of methanol extracts of cryogenic vapor samples, screening of semivolatile organic extracts, GPC cleanup for semivolatiles, sample preparation for GC/MS for semi-VOCs, analysis for pesticides/PCBs by GC with electron capture detection, sample preparation for pesticides/PCBs in water and soil sediment, report preparation, Florisil column cleanup for pesticide/PCBs, silica gel and acid-base partition cleanup of samples for semi-VOCs, concentrate acid wash cleanup, carbon determination in solids using Coulometrics` CO{sub 2} coulometer, determination of total carbon/total organic carbon/total inorganic carbon in radioactive liquids/soils/sludges by hot persulfate method, analysis of solids for carbonates using Coulometrics` Model 5011 coulometer, and soxhlet extraction.

Not Available

1993-08-01T23:59:59.000Z

20

A comparison of the point kinetics equations with the QUANDRY analytic nodal diffusion method  

E-Print Network [OSTI]

The point kinetics equations were incorporated into QUANDRY, a nuclear reactor analysis computer program which uses the analytic nodal method to solve the neutron diffusion equation. Both the point kinetics equations, solved using the IMSL MATH...

Velasquez, Arthur

2012-06-07T23:59:59.000Z

Note: This page contains sample records for the topic "method analytical method" 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

An analytic electromagnetic calculation method for performance evolution of doubly fed induction generators for wind turbines  

Science Journals Connector (OSTI)

An analytic electromagnetic calculation method for doubly fed induction generator (DFIG) in wind turbine system was presented. ... steady state equivalent circuit and basic equations of DFIG, the modeling for ele...

Wen-juan Zhang ???; Shou-dao Huang ???; Jian Gao ??

2013-10-01T23:59:59.000Z

22

Waste Tank Organic Safety Program: Analytical methods development. Progress report, FY 1994  

SciTech Connect (OSTI)

The objectives of this task are to develop and document extraction and analysis methods for organics in waste tanks, and to extend these methods to the analysis of actual core samples to support the Waste Tank organic Safety Program. This report documents progress at Pacific Northwest Laboratory (a) during FY 1994 on methods development, the analysis of waste from Tank 241-C-103 (Tank C-103) and T-111, and the transfer of documented, developed analytical methods to personnel in the Analytical Chemistry Laboratory (ACL) and 222-S laboratory. This report is intended as an annual report, not a completed work.

Campbell, J.A.; Clauss, S.A.; Grant, K.E. [and others

1994-09-01T23:59:59.000Z

23

Analytical Method for Yrast Line States in Interacting Bose-Einstein Condensates  

Science Journals Connector (OSTI)

We propose a method to investigate the energy eigenvalue problem and corresponding yrast line for harmonically trapped interacting N-boson systems. This method is particularly simple and effective to obtain the explicit analytical expressions of low-L energy eigenstates with L denoting systems' total angular momentum but with an arbitrarily large N. We have derived the explicit analytical results for L=0,1,,9 and discussed the yrast line for these low- L energy eigenstates.

Ying Wu; Xiaoxue Yang; Yi Xiao

2001-03-12T23:59:59.000Z

24

The use of a semi-analytical method for matching aquifer influence functions  

E-Print Network [OSTI]

of water-drive gas reservoirs. The method is suitable for hand calculation. Fetkovich ", in 1971, presented an approach that utilizes the "stabilized", or pseudosteady-state aquifer productivity index and an aquifer material balance to represent...THE USE OF A SEMI-ANALYTICAL METHOD FOR MATCHING AQUIFER INFLUENCE FUNCTIONS A Thesis by SHENG DING Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER...

Ding, Sheng

1990-01-01T23:59:59.000Z

25

Selection of analytical methods for mixed waste analysis at the Hanford Site  

SciTech Connect (OSTI)

This document describes the process that the US Department of Energy (DOE), Richland Operations Office (RL) and contractor laboratories use to select appropriate or develop new or modified analytical methods. These methods are needed to provide reliable mixed waste characterization data that meet project-specific quality assurance (QA) requirements while also meeting health and safety standards for handling radioactive materials. This process will provide the technical basis for DOE`s analysis of mixed waste and support requests for regulatory approval of these new methods when they are used to satisfy the regulatory requirements of the Hanford Federal Facility Agreement and Consent Order (Tri-party Agreement) (Ecology et al. 1992).

Morant, P.M.

1994-09-01T23:59:59.000Z

26

SRC-I demonstration plant analytical laboratory methods manual. Final technical report  

SciTech Connect (OSTI)

This manual is a compilation of analytical procedures required for operation of a Solvent-Refined Coal (SRC-I) demonstration or commercial plant. Each method reproduced in full includes a detailed procedure, a list of equipment and reagents, safety precautions, and, where possible, a precision statement. Procedures for the laboratory's environmental and industrial hygiene modules are not included. Required American Society for Testing and Materials (ASTM) methods are cited, and ICRC's suggested modifications to these methods for handling coal-derived products are provided.

Klusaritz, M.L.; Tewari, K.C.; Tiedge, W.F.; Skinner, R.W.; Znaimer, S.

1983-03-01T23:59:59.000Z

27

Analytic solution of nonlinear fractional Burgers-type equation by invariant subspace method  

E-Print Network [OSTI]

In this paper we study the analytic solutions of Burgers-type nonlinear fractional equations by means of the Invariant Subspace Method. We first study a class of nonlinear equations directly related to the time-fractional Burgers equation. Some generalizations linked to the forced time-fractional Burgers equations and variable-coefficient diffusion are also considered. Finally we study a Burgers-type equation involving both space and time-fractional derivatives.

P. Artale Harris; R. Garra

2013-06-08T23:59:59.000Z

28

The validity of analytical methods for predicting self burial of offshore pipelines  

E-Print Network [OSTI]

penetration of ~. D H drostatic ressure test hase, - Prior to placing a pipeline into service, it is necessary to perform a pressure test to insure that the structural integrity of the pipe was maintained during construction and to check for leaks...THE VALIDITY OF ANALYTICAL METHODS FOR PREDICTING SELF BURIAL OF OFFSHORE PIPELINES A Thesis by THOMAS KENWOOD HAMILTON Submitted to the Graduate College of Texas AEM University in partial fulfillment of the requirement for the degree...

Hamilton, Thomas Kenwood

2012-06-07T23:59:59.000Z

29

Thrust measurement method verification and analytical studies on a liquid-fueled pulse detonation engine  

Science Journals Connector (OSTI)

Abstract In order to test the feasibility of a new thrust stand system based on impulse thrust measurement method, a liquid-fueled pulse detonation engine (PDE) is designed and built. Thrust performance of the engine is obtained by direct thrust measurement with a force transducer and indirect thrust measurement with an eddy current displacement sensor (ECDS). These two sets of thrust data are compared with each other to verify the accuracy of the thrust performance. Then thrust data measured by the new thrust stand system are compared with the verified thrust data to test its feasibility. The results indicate that thrust data from the force transducer and ECDS system are consistent with each other within the range of measurement error. Though the thrust data from the impulse thrust measurement system is a litter lower than that from the force transducer due to the axial momentum losses of the detonation jet, the impulse thrust measurement method is valid when applied to measure the averaged thrust of PDE. Analytical models of PDE are also discussed in this paper. The analytical thrust performance is higher than the experimental data due to ignoring the losses during the deflagration to detonation transition process. Effect of equivalence ratio on the engine thrust performance is investigated by utilizing the modified analytical model. Thrust reaches maximum at the equivalence ratio of about 1.1.

Jie Lu; Longxi Zheng; Zhiwu Wang; Changxin Peng; Xinggu Chen

2014-01-01T23:59:59.000Z

30

Exploring Liquid Sequential Injection Chromatography To Teach Fundamentals of Separation Methods: A Very Fast Analytical Chemistry Experiment  

Science Journals Connector (OSTI)

Exploring Liquid Sequential Injection Chromatography To Teach Fundamentals of Separation Methods: A Very Fast Analytical Chemistry Experiment ... Design of experiments (DOE) was used to find the suitable condition for optimal separation in short chromatographic runs. ...

Jose? C. Penteado; Jorge Ce?sar Masini

2010-12-09T23:59:59.000Z

31

An analytical inversion method for determining regional and global emissions of greenhouse gases: Sensitivity studies and application to halocarbons  

E-Print Network [OSTI]

A new analytical inversion method has been developed to determine the regional and global emissions of long-lived atmospheric trace gases. It exploits in situ measurement data from three global networks and builds on ...

Stohl, A.

32

Advanced organic analysis and analytical methods development: FY 1995 progress report. Waste Tank Organic Safety Program  

SciTech Connect (OSTI)

This report describes the work performed during FY 1995 by Pacific Northwest Laboratory in developing and optimizing analysis techniques for identifying organics present in Hanford waste tanks. The main focus was to provide a means for rapidly obtaining the most useful information concerning the organics present in tank waste, with minimal sample handling and with minimal waste generation. One major focus has been to optimize analytical methods for organic speciation. Select methods, such as atmospheric pressure chemical ionization mass spectrometry and matrix-assisted laser desorption/ionization mass spectrometry, were developed to increase the speciation capabilities, while minimizing sample handling. A capillary electrophoresis method was developed to improve separation capabilities while minimizing additional waste generation. In addition, considerable emphasis has been placed on developing a rapid screening tool, based on Raman and infrared spectroscopy, for determining organic functional group content when complete organic speciation is not required. This capability would allow for a cost-effective means to screen the waste tanks to identify tanks that require more specialized and complete organic speciation to determine tank safety.

Wahl, K.L.; Campbell, J.A.; Clauss, S.A. [and others

1995-09-01T23:59:59.000Z

33

Solar flux distribution on central receivers: A projection method from analytic function  

Science Journals Connector (OSTI)

Abstract This paper presents a methodology to project the flux distribution from the image plane into the panels of any central receiver in Solar Power Tower plants. Since analytic functions derived from the convolution approach are conveniently defined on the image plane, its oblique projection solves the distorted spot found in actual receivers. Because of its accuracy describing the flux distribution due to rectangular focusing heliostats, we make use of the analytic function on the image plane by Collado etal. (1986). Based on the projection method, we have developed a computer code successfully confronted against PSA measurements and SolTrace software, either for flat plate or multi-panel cylindrical receivers. The validated model overcomes the computation time limitation associated to Monte Carlo technique, with a similar accuracy and even higher level of resolution. For each heliostat in a field, the spillage is computed besides the rest of optical losses; parallel projection is used for shading and blocking. The resulting optical performance tool generates the flux map caused by a whole field of heliostats. A multi-aiming strategy is investigated on the basis of the radius of the reflected beams, estimated from error cone angles.

Alberto Snchez-Gonzlez; Domingo Santana

2015-01-01T23:59:59.000Z

34

Golden Day Comparison of Methods to Retrieve ET (Kc?NDVI, Kc?analytical, MSSEBS, METRIC)  

Science Journals Connector (OSTI)

This works presents the results from the application of four different remote sensing?based evapotranspiration models to an agricultural area of Castilla?La Mancha Spain. The models that were analyzed are: (1) the Kc?NDVI approach (2) the Kc?analytical method (3) the Multi Scale Surface Energy Balance System MSSEBS and (4) the Mapping Evapotranspiration at High Resolution and with Internalized Calibration METRIC procedure. Models (1) and (2) provide daily maps of crop water requirements and do not require the use of a thermal image. Whereas models (3) and (4) are surface energy balance models that supply instantaneous and daily calculations of actual evapotranspiration and require a thermal image in addition to short wave images. A Landsat 5 image of the studied area for July 15 2003 was used to derive the various products together with weather and ground vegetation data. The comparison between models was performed in terms of crop coefficients and demonstrated the agreement between methods according to theory. Quantitative description of the differences between models for land uses of the area is provided. This research illustrates the potential of these approaches for routine and operational estimation of water demand and water consumption on a daily scale.

E. Rubio; J. Colin; G. DUrso; R. Trezza; R. Allen; A. Calera; J. Gonzlez; A. Jochum; M. Menenti; M. Tasumi; C. Kelly; F. Vuolo

2006-01-01T23:59:59.000Z

35

Production Systems and Processing Effect on Phytochemicals in Citrus Fruits and Their Analytical and Isolation Methods  

E-Print Network [OSTI]

performance liquid chromatography (HPLC) method for the rapid analysis of amines and organic acids was developed. The simultaneous extraction and analysis of samples provides an economical method for analyzing a large number of samples. In the second study...

Uckoo, Ram 1980-

2012-12-13T23:59:59.000Z

36

INVESTIGATION OF THE TOTAL ORGANIC HALOGEN ANALYTICAL METHOD AT THE WASTE SAMPLING AND CHARACTERIZATION FACILITY  

SciTech Connect (OSTI)

Total organic halogen (TOX) is used as a parameter to screen groundwater samples at the Hanford Site. Trending is done for each groundwater well, and changes in TOX and other screening parameters can lead to costly changes in the monitoring protocol. The Waste Sampling and Characterization Facility (WSCF) analyzes groundwater samples for TOX using the United States Environmental Protection Agency (EPA) SW-S46 method 9020B (EPA 1996a). Samples from the Soil and Groundwater Remediation Project (SGRP) are submitted to the WSCF for analysis without information regarding the source of the sample; each sample is in essence a ''blind'' sample to the laboratory. Feedback from the SGRP indicated that some of the WSCF-generated TOX data from groundwater wells had a number of outlier values based on the historical trends (Anastos 200Sa). Additionally, analysts at WSCF observed inconsistent TOX results among field sample replicates. Therefore, the WSCF lab performed an investigation of the TOX analysis to determine the cause of the outlier data points. Two causes were found that contributed to generating out-of-trend TOX data: (1) The presence of inorganic chloride in the groundwater samples: at inorganic chloride concentrations greater than about 10 parts per million (ppm), apparent TOX values increase with increasing chloride concentration. A parallel observation is the increase in apparent breakthrough of TOX from the first to the second activated-carbon adsorption tubes with increasing inorganic chloride concentration. (2) During the sample preparation step, excessive purging of the adsorption tubes with oxygen pressurization gas after sample loading may cause channeling in the activated carbon bed. This channeling leads to poor removal of inorganic chloride during the subsequent wash step with aqueous potassium nitrate. The presence of this residual inorganic chloride then produces erroneously high TOX values. Changes in sample preparation were studied to more effectively remove inorganic chloride from the activated-carbon adsorption tubes. With the TOX sample preparation equipment and TOX analyzers at WSCF, the nitrate wash recommended by EPA SW-846 method 9020B was found to be inadequate to remove inorganic chloride interference. Increasing the nitrate wash concentration from 10 grams per liter (g/L) to 100 giL potassium nitrate and increasing the nitrate wash volume from 3 milliliters (mL) to 10 mL effectively removed the inorganic chloride up to at least 100 ppm chloride in the sample matrix. Excessive purging of the adsorption tubes during sample preparation was eliminated. These changes in sample preparation have been incorporated in the analytical procedure. The results using the revised sample preparation procedure show better agreement of TOX values both for replicate analyses of single samples and for the analysis of replicate samples acquired from the same groundwater well. Furthermore, less apparent adsorption tube breakthrough now occurs with the revised procedure. One additional modification made to sample preparation was to discontinue the treatment of groundwater samples with sodium bisulfite. Sodium bisulfite is used to remove inorganic chlorine from the sample; inorganic chlorine is not expected to be a constituent in these groundwater samples. Several other factors were also investigated as possible sources of anomalous TOX results: (1) Instrument instability: examination of the history of results for TOX laboratory control samples and initial calibration verification standards indicate good long-term precision for the method and instrument. Determination of a method detection limit of 2.3 ppb in a deionized water matrix indicates the method and instrumentation have good stability and repeatability. (2) Non-linear instrument response: the instrument is shown to have good linear response from zero to 200 parts per billion (ppb) TOX. This concentration range encompasses the majority of samples received at WSCF for TOX analysis. Linear response was checked using both non-volatile TOX species (trichlorophenol) an

JG DOUGLAS; HK MEZNARICH, PHD; JR OLSEN; GA ROSS PHD; M STAUFFER

2009-02-13T23:59:59.000Z

37

INVESTIGATION OF THE TOTAL ORGANIC HALOGEN ANALYTICAL METHOD AT THE WASTE SAMPLING CHARACTERIZATION FACILITY (WSCF)  

SciTech Connect (OSTI)

Total organic halogen (TOX) is used as a parameter to screen groundwater samples at the Hanford Site. Trending is done for each groundwater well, and changes in TOX and other screening parameters can lead to costly changes in the monitoring protocol. The Waste Sampling and Characterization Facility (WSCF) analyzes groundwater samples for TOX using the United States Environmental Protection Agency (EPA) SW-846 method 9020B (EPA 1996a). Samples from the Soil and Groundwater Remediation Project (S&GRP) are submitted to the WSCF for analysis without information regarding the source of the sample; each sample is in essence a 'blind' sample to the laboratory. Feedback from the S&GRP indicated that some of the WSCF-generated TOX data from groundwater wells had a number of outlier values based on the historical trends (Anastos 2008a). Additionally, analysts at WSCF observed inconsistent TOX results among field sample replicates. Therefore, the WSCF lab performed an investigation of the TOX analysis to determine the cause of the outlier data points. Two causes were found that contributed to generating out-of-trend TOX data: (1) The presence of inorganic chloride in the groundwater samples: at inorganic chloride concentrations greater than about 10 parts per million (ppm), apparent TOX values increase with increasing chloride concentration. A parallel observation is the increase in apparent breakthrough of TOX from the first to the second activated-carbon adsorption tubes with increasing inorganic chloride concentration. (2) During the sample preparation step, excessive purging of the adsorption tubes with oxygen pressurization gas after sample loading may cause channeling in the activated-carbon bed. This channeling leads to poor removal of inorganic chloride during the subsequent wash step with aqueous potassium nitrate. The presence of this residual inorganic chloride then produces erroneously high TOX values. Changes in sample preparation were studied to more effectively remove inorganic chloride from the activated carbon adsorption tubes. With the TOX sample preparation equipment and TOX analyzers at WSCF, the nitrate wash recommended by EPA SW-846 method 9020B was found to be inadequate to remove inorganic chloride interference. Increasing the nitrate wash concentration from 10 grams per liter (g/L) to 100 g/L potassium nitrate and increasing the nitrate wash volume from 3 milliliters (mL) to 10 mL effectively removed the inorganic chloride up to at least 100 ppm chloride in the sample matrix. Excessive purging of the adsorption tubes during sample preparation was eliminated. These changes in sample preparation have been incorporated in the analytical procedure. The results using the revised sample preparation procedure show better agreement of TOX values both for replicate analyses of single samples and for the analysis of replicate samples acquired from the same groundwater well. Furthermore, less apparent column breakthrough now occurs with the revised procedure. One additional modification made to sample preparation was to discontinue the treatment of groundwater samples with sodium bisulfite. Sodium bisulfite is used to remove inorganic chlorine from the sample; inorganic chlorine is not expected to be a constituent in these groundwater samples. Several other factors were also investigated as possible sources of anomalous TOX results: (1) Instrument instability: examination of the history of results for TOX laboratory control samples and initial calibration verification standards indicate good long-term precision for the method and instrument. Determination of a method detection limit of 2.3 ppb in a deionized water matrix indicates the method and instrumentation have good stability and repeatability. (2) Non-linear instrument response: the instrument is shown to have good linear response from zero to 200 parts per billion (ppb) TOX. This concentration range encompasses the majority of samples received at WSCF for TOX analysis. (3) Improper sample preservation: ion-chromatographic analysis of several samples wit

DOUGLAS JG; MEZNARICH HD, PHD; OLSEN JR; ROSS GA; STAUFFER M

2008-09-30T23:59:59.000Z

38

Analytical energy gradient based on spin-free infinite-order Douglas-Kroll-Hess method with local unitary transformation  

SciTech Connect (OSTI)

In this study, the analytical energy gradient for the spin-free infinite-order Douglas-Kroll-Hess (IODKH) method at the levels of the Hartree-Fock (HF), density functional theory (DFT), and second-order Mller-Plesset perturbation theory (MP2) is developed. Furthermore, adopting the local unitary transformation (LUT) scheme for the IODKH method improves the efficiency in computation of the analytical energy gradient. Numerical assessments of the present gradient method are performed at the HF, DFT, and MP2 levels for the IODKH with and without the LUT scheme. The accuracies are examined for diatomic molecules such as hydrogen halides, halogen dimers, coinage metal (Cu, Ag, and Au) halides, and coinage metal dimers, and 20 metal complexes, including the fourthsixth row transition metals. In addition, the efficiencies are investigated for one-, two-, and three-dimensional silver clusters. The numerical results confirm the accuracy and efficiency of the present method.

Nakajima, Yuya; Seino, Junji [Department of Chemistry and Biochemistry, School of Advanced Science and Engineering, Waseda University, Tokyo 169-8555 (Japan)] [Department of Chemistry and Biochemistry, School of Advanced Science and Engineering, Waseda University, Tokyo 169-8555 (Japan); Nakai, Hiromi, E-mail: nakai@waseda.jp [Department of Chemistry and Biochemistry, School of Advanced Science and Engineering, Waseda University, Tokyo 169-8555 (Japan) [Department of Chemistry and Biochemistry, School of Advanced Science and Engineering, Waseda University, Tokyo 169-8555 (Japan); Research Institute for Science and Engineering, Waseda University, Tokyo 169-8555 (Japan); CREST, Japan Science and Technology Agency, 4-1-8 Honcho, Kawaguchi, Saitama 332-0012 (Japan); Elements Strategy Initiative for Catalysts and Batteries (ESICB), Kyoto University, Katsura, Kyoto 615-8520 (Japan)

2013-12-28T23:59:59.000Z

39

VALIDATION OF ANALYTICAL METHODS AND INSTRUMENTATION FOR BERYLLIUM MEASUREMENT: REVIEW AND SUMMARY OF AVAILABLE GUIDES, PROCEDURES, AND PROTOCOLS  

SciTech Connect (OSTI)

Method validation is the process of evaluating whether an analytical method is acceptable for its intended purpose. For pharmaceutical methods, guidelines from the United States Pharmacopeia (USP), International Conference on Harmonisation (ICH), and the United States Food and Drug Administration (USFDA) provide a framework for performing such valications. In general, methods for regulatory compliance must include studies on specificity, linearity, accuracy, precision, range, detection limit, quantitation limit, and robustness. Elements of these guidelines are readily adapted to the issue of validation for beryllium sampling and analysis. This document provides a listing of available sources which can be used to validate analytical methods and/or instrumentation for beryllium determination. A literature review was conducted of available standard methods and publications used for method validation and/or quality control. A comprehensive listing of the articles, papers and books reviewed is given in the Appendix. Available validation documents and guides are listed therein; each has a brief description of application and use. In the referenced sources, there are varying approches to validation and varying descriptions of the valication process at different stages in method development. This discussion focuses on valication and verification of fully developed methods and instrumentation that have been offered up for use or approval by other laboratories or official consensus bodies such as ASTM International, the International Standards Organization (ISO) and the Association of Official Analytical Chemists (AOAC). This review was conducted as part of a collaborative effort to investigate and improve the state of validation for measuring beryllium in the workplace and the environment. Documents and publications from the United States and Europe are included. Unless otherwise specified, all referenced documents were published in English.

Ekechukwu, A

2009-05-27T23:59:59.000Z

40

Development of Analytical Methods Coupled to Microdialysis Sampling for Studying Biomarkers of Oxidative Stress  

E-Print Network [OSTI]

generation would increase in biological systems due to induced oxidative stress. In one investigation, a capillary electrophoresis (CE) method with ultra-violet (UV) detection was developed employing pH-mediated stacking, an on-column preconcentration...

Hoque, Md Ehsanul

2007-12-18T23:59:59.000Z

Note: This page contains sample records for the topic "method analytical method" 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

E-Print Network 3.0 - analytical methods ii Sample Search Results  

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

Calculus with Analytic Geometry I 4 MAC x312 Calculus with Analytic Geometry II 4 PHY x048 General Physics... CHM 2211+L Organic Chemistry II 5 MAC 1105 College Algebra 3...

42

VALIDATION OF ANALYTICAL METHODS AND INSTRUMENTATION FOR BERYLLIUM MEASUREMENT: REVIEW AND SUMMARY OF AVAILABLE GUIDES, PROCEDURES, AND PROTOCOLS  

SciTech Connect (OSTI)

This document proposes to provide a listing of available sources which can be used to validate analytical methods and/or instrumentation for beryllium determination. A literature review was conducted of available standard methods and publications used for method validation and/or quality control. A comprehensive listing of the articles, papers, and books reviewed is given in Appendix 1. Available validation documents and guides are listed in the appendix; each has a brief description of application and use. In the referenced sources, there are varying approaches to validation and varying descriptions of validation at different stages in method development. This discussion focuses on validation and verification of fully developed methods and instrumentation that have been offered up for use or approval by other laboratories or official consensus bodies such as ASTM International, the International Standards Organization (ISO) and the Association of Official Analytical Chemists (AOAC). This review was conducted as part of a collaborative effort to investigate and improve the state of validation for measuring beryllium in the workplace and the environment. Documents and publications from the United States and Europe are included. Unless otherwise specified, all documents were published in English.

Ekechukwu, A.

2008-12-17T23:59:59.000Z

43

E-Print Network 3.0 - analytical method development Sample Search...  

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

Page: << < 1 2 3 4 5 > >> 1 Symposium, Hans-Johann Glock, What is Analytic Philosophy? Christopher Pincock, Department of Philosophy, University of Missouri...

44

E-Print Network 3.0 - analytical methods development Sample Search...  

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

Page: << < 1 2 3 4 5 > >> 1 Symposium, Hans-Johann Glock, What is Analytic Philosophy? Christopher Pincock, Department of Philosophy, University of Missouri...

45

E-Print Network 3.0 - analytical method based Sample Search Results  

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

based Page: << < 1 2 3 4 5 > >> 1 Symposium, Hans-Johann Glock, What is Analytic Philosophy? Christopher Pincock, Department of Philosophy, University of Missouri...

46

Development and application of an analytical method using gas chromatography/triple quadrupole mass spectrometry for  

E-Print Network [OSTI]

. Hayworth and T. P. Clement* Environmental Engineering Program, Department of Civil Engineering, Auburn under full-scan and product-ion scan conditions. The calibration curves used were in the linear range full-scan and product-ion scan data was combined with literature data to develop a GC/MS/MS method

Clement, Prabhakar

47

Variable rate analysis of transient well test data using semi-analytical methods  

E-Print Network [OSTI]

. 4. 2. 1 Fetkovich and Vienot Data. . 4. 2. 2 Streltsova Data . 4. 2. 3 Low Productivity Gas Well DS-1 4. 2. 4 Low Productivity Gas Well CSW-1. 4. 2. 5 Low Productivity Gas Well AC-6. . 4. 2. 6 Low Productivity Gas Well TGA-21 4. 2. 7 Low... with the Material Balance Deconvolution Method and Calculated Sandface Rates . . . . . . . . . . . . . . . . . . 75 4. 1 Reservoir and Fluid Properties and Comparison of Analysis Results for Rate Normalization and Material Balance Deconvolution - Fetkovich...

Johnston, Jennifer L.

1992-01-01T23:59:59.000Z

48

An analytical method to calculate equivalent fields to irregular symmetric and asymmetric photon fields  

SciTech Connect (OSTI)

Equivalent field is frequently used for central axis depth-dose calculations of rectangular- and irregular-shaped photon beams. As most of the proposed models to calculate the equivalent square field are dosimetry based, a simple physical-based method to calculate the equivalent square field size was used as the basis of this study. The table of the sides of the equivalent square or rectangular fields was constructed and then compared with the well-known tables by BJR and Venselaar, et al. with the average relative error percentage of 2.5 2.5% and 1.5 1.5%, respectively. To evaluate the accuracy of this method, the percentage depth doses (PDDs) were measured for some special irregular symmetric and asymmetric treatment fields and their equivalent squares for Siemens Primus Plus linear accelerator for both energies, 6 and 18 MV. The mean relative differences of PDDs measurement for these fields and their equivalent square was approximately 1% or less. As a result, this method can be employed to calculate equivalent field not only for rectangular fields but also for any irregular symmetric or asymmetric field.

Tahmasebi Birgani, Mohamad J. [Department of Radiation Therapy, Golestan Hospital, JondiShapour University of Medical Science, Ahvaz (Iran, Islamic Republic of); Department of Medical Physics, JondiShapour University of Medical Sciences, Ahvaz (Iran, Islamic Republic of); Chegeni, Nahid, E-mail: nchegen@yahoo.com [Department of Medical Physics, JondiShapour University of Medical Sciences, Ahvaz (Iran, Islamic Republic of); Zabihzadeh, Mansoor; Hamzian, Nima [Department of Medical Physics, JondiShapour University of Medical Sciences, Ahvaz (Iran, Islamic Republic of)

2014-04-01T23:59:59.000Z

49

MonteCarlo and Analytical Methods for Forced Outage Rate Calculations of Peaking Units  

E-Print Network [OSTI]

(unavailability) of such units. This thesis examines the representation of peaking units using a four-state model and performs the analytical calculations and Monte Carlo simulations to examine whether such a model does indeed represent the peaking units...

Rondla, Preethi 1988-

2012-10-26T23:59:59.000Z

50

Method and apparatus for selective capture of gas phase analytes using metal .beta.-diketonate polymers  

DOE Patents [OSTI]

A process and sensor device are disclosed that employ metal .beta.-diketonate polymers to selectively capture gas-phase explosives and weaponized chemical agents in a sampling area or volume. The metal .beta.-diketonate polymers can be applied to surfaces in various analytical formats for detection of: improvised explosive devices, unexploded ordinance, munitions hidden in cargo holds, explosives, and chemical weapons in public areas.

Harvey, Scott D [Kennewick, WA

2011-06-21T23:59:59.000Z

51

The analytic gradient of the perturbative triplet excitations correction to the Brueckner doubles method  

Science Journals Connector (OSTI)

To determine correlated properties accurately, it is necessary to go beyond the level of single and double excitations from a single determinant and include the effects of the connected triple excitations. A formula for the analytic gradient of the closed-shell perturbative triple excitations correction is presented for the Brueckner doubles varinat of coupled cluster theory. Optimised geometries and harmonic frequencies are presented for H2O and the multiple bonded systems HCN, NNO and O3. For these molecules, the use of Brueckner orbitals and the triples contribution show significant effects.

Rika Kobayashi; Roger D. Amos; Nicholas C. Handy

1991-01-01T23:59:59.000Z

52

Adding Environmental Gas Physics to the Semi-Analytic Method for Galaxy Formation: Gravitational Heating  

E-Print Network [OSTI]

We present results of an attempt to include more detailed gas physics motivated from hydrodynamical simulations within semi-analytic models (SAM) of galaxy formation, focusing on the role that environmental effects play. The main difference to previous SAMs is that we include 'gravitational' heating of the intra-cluster medium (ICM) by the net surplus of gravitational potential energy released from gas that has been stripped from infalling satellites. Gravitational heating appears to be an efficient heating source able to prevent cooling in environments corresponding to dark matter halos more massive than $\\sim 10^{13} $M$_{\\odot}$. The energy release by gravitational heating can match that by AGN-feedback in massive galaxies and can exceed it in the most massive ones. However, there is a fundamental difference in the way the two processes operate. Gravitational heating becomes important at late times, when the peak activity of AGNs is already over, and it is very mass dependent. This mass dependency and time behaviour gives the right trend to recover down-sizing in the star-formation rate of massive galaxies. Abridged...

S. Khochfar; J. P. Ostriker

2007-04-18T23:59:59.000Z

53

Nuclear safeguard protocol construction for nuclear power plants using analytic hierarchy process with zero-sum method  

Science Journals Connector (OSTI)

A nuclear safeguard protocol (NSP) is constructed for the nuclear material flow in the operation of nuclear power plants (NPPs). Secure plant operation is one of critical issues against the risk of possible terrorism. The basic event of the related incidents is quantified by the random sampling of the Monte-Carlo method incorporating a zero-sum method. The analytic hierarchy process is developed as the maximum pair values with multiplications which are decided by the matrix-form analysis used to compare five types of NPPs of interest. Using the life cycle of 60 years, the range of the secure operation is between 0.0166000 and 0.0209531 as relative numbers. This means that the highest value in the range of secure power operation is about 1.26 times higher than the lowest one in this study. Consistency in terms of Consistency Index (CI) and Consistency Ratio (CR) is the highest in the 24th and the 54th years. Therefore, the NSP is constructed for successful safe operation.

Taeho Woo

2011-01-01T23:59:59.000Z

54

Development of an analytical method and its quick algorithm to calculate the solar energy collected by a heliostat field in a year  

Science Journals Connector (OSTI)

Abstract In this paper, we firstly propose an analytical equation to calculate the energy collected by the heliostat field. A ray tracing method is developed based on the analytical equation. Then we introduce three approximations to reduce computation spending, and estimate the errors caused by these approximations. A fast and accurate algorithm is developed with the three approximations to calculate the energy collected by the heliostat field over a year. It was compared with the ray tracing results, which shows good consistency with them. With the method, the energy collected and efficiency of each heliostat in a year can be computed exactly and rapidly, the difference between the method and ray tracing method is less than 0.1% for the energy collected by a heliostat over a day. It needs only about 0.1% computation time used by ray tracing method to calculate the intercept factor of a heliostat at a moment, and 2.67h to compute the annual collected energy of PS10 heliostat field by using one CPU of i3 processor when the time span for integration is 5min and each heliostat is calculated.

Weidong Huang; Qian Xu

2014-01-01T23:59:59.000Z

55

Approximate analytical method and its use for calculation of phase velocities of acoustic plane waves in crystals for example LiNbO3  

E-Print Network [OSTI]

By means of the offered analytical method the determinant relation for a phase velocities of elastic waves for an arbitrary propagation directions in a piezoelectric crystal are received. The phase velocities of three normal elastic waves for the crystal of LiNbO3 are calculated. Results of this calculation for each of waves are presented graphically in the form of the cards allowing easily to define phase velocities in any given direction in crystal.

A. A. Golubeva

2010-07-26T23:59:59.000Z

56

A literature review of methods of analysis of organic analytes in radioactive wastes with an emphasis on sources from the United Kingdom  

SciTech Connect (OSTI)

This report, compiled by Pacific Northwest Laboratory (PNL), examines literature originating through the United Kingdom (UK) nuclear industry relating to the analyses of organic constituents of radioactive waste. Additionally, secondary references from the UK and other counties, including the United States, have been reviewed. The purpose of this literature review was to find analytical methods that would apply to the mixed-waste matrices found at Hanford.

Clauss, S.A.; Bean, R.M.

1993-09-01T23:59:59.000Z

57

A Modified Analytical Method for Simulating Cyclic Operation of Vertical U-Tube Ground-Coupled Heat Pumps  

E-Print Network [OSTI]

A modified analytical model is presented which discretizes the ground-coupled heat exchanger of a ground-coupled heat pump and utilized a separate cylindrical source solution for each element. First law expressions are utilized for each element...

Dobson, M. K.; O'Neal, D. L.; Aldred, W.

1994-01-01T23:59:59.000Z

58

The analytical energy gradient scheme in the Gaussian based Hartree-Fock and density functional theory for two-dimensional systems using fast multipole method  

SciTech Connect (OSTI)

The analytical total energy gradient scheme for the Hartree-Fock and density functional crystalline orbital theory is formulated for infinitely extended periodic systems of general dimensions and implemented for those of two dimensions. Two major differences between the analytical gradient scheme for extended systems and that for molecular systems are described in detail. The first is the treatment of the long-range Coulomb interactions, which arises due to the infinite nature of the systems. The long-range effect is efficiently included by the multipole expansion technique and its extension, the fast multipole method The use of the fast multipole method enables us to include the long range effect up to the order of micro meter to millimeter region around the reference unit cell by virtue of the logarithmic cost scaling of the algorithm achieved by regrouping distant multipoles together and reducing the number of pairwise interactions. The second is the formulation of analytical gradient expressions with respect to unit cell parameters. In the HF theory they can be calculated by accumulating forces acting on atoms multiplied by some appropriate factors, while there is an extra term which requires a special numerical treatment in grid-based density functional theory. Specifically, it is shown that the quadrature weight derivatives do not vanish even in the limit of infinitely fine grid, when calculating the gradients with respect to unit cell parameters, and are essential in evaluating those gradients. Combining the analytical gradient scheme and an efficient inclusion of the long-range interaction makes it feasible to perform a full geometry optimization of extended systems at ab initio levels.

Tobita, Motoi; Hirata, So; Bartlett, Rodney J.

2003-04-01T23:59:59.000Z

59

Estimating Methods  

Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

Based on the project's scope, the purpose of the estimate, and the availability of estimating resources, the estimator can choose one or a combination of techniques when estimating an activity or project. Estimating methods, estimating indirect and direct costs, and other estimating considerations are discussed in this chapter.

1997-03-28T23:59:59.000Z

60

Capture and evolution of dust in planetary mean-motion resonances: a fast, semi-analytic method for generating resonantly trapped disk images  

E-Print Network [OSTI]

Dust grains migrating under Poynting-Robertson drag may be trapped in mean-motion resonances with planets. Such resonantly trapped grains are observed in the solar system. In extrasolar systems, the exozodiacal light produced by dust grains is expected to be a major obstacle to future missions attempting to directly image terrestrial planets. The patterns made by resonantly trapped dust, however, can be used to infer the presence of planets, and the properties of those planets, if the capture and evolution of the grains can be modelled. This has been done with N-body methods, but such methods are computationally expensive, limiting their usefulness when considering large, slowly evolving grains, and for extrasolar systems with unknown planets and parent bodies, where the possible parameter space for investigation is large. In this work, we present a semi-analytic method for calculating the capture and evolution of dust grains in resonance, which can be orders of magnitude faster than N-body methods. We calibr...

Shannon, Andrew; Wyatt, Mark

2015-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "method analytical method" 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

An uncovered XIII century icon: Particular use of organic pigments and gilding techniques highlighted by analytical methods  

Science Journals Connector (OSTI)

Abstract The restoration of a panel painting depicting a Madonna and Child listed as an unknown Tuscan artist of the nineteenth century, permitted the hidden original version, a XIII century Medieval icon to be uncovered. It is discovery provided the opportunity for an extensive in situ campaign of non-invasive analytical investigations by portable imaging and spectroscopic techniques (infrared, X-ray fluorescence and diffraction, UVVis absorption and emission), followed by aimed micro-destructive investigations (Raman and SEMEDS). This approach permitted characterization of the original ground and paint layers by complementary techniques. Furthermore, this protocol allowed supplementary particularities of great interest to be highlighted. Namely, numerous original gilding techniques have been accentuated in diverse areas and include the use of surrogate gold (disulphur tin), orpiment as a further false gold and an area with an original silver rich layer. Moreover, pigments including azurite mixed with indigo have been non-invasively identified. Micro-invasive analyses also allowed the diagnosis of organic colorants, namely, an animal anthraquinone lake, kermes and an unusual vegetal chalcone pigment, possibly safflower. The identification of the latter is extremely rare as a painting pigment and has been identified using an innovative adaption to surface enhanced Raman techniques on a cross-section. The resulting data contributes new hypotheses to the historic and artistic knowledge of materials and techniques utilized in XIII century icon paintings and ultimately provides scientific technical support of the recent restoration.

Alessia Daveri; Brenda Doherty; Patrizia Moretti; Chiara Grazia; Aldo Romani; Enrico Fiorin; Brunetto Giovanni Brunetti; Manuela Vagnini

2015-01-01T23:59:59.000Z

62

Analytical study of bound states in graphene nano-ribbons and carbon nanotubes: The variable phase method and the relativistic Levinson theorem  

E-Print Network [OSTI]

The problem of localized states in 1D systems with the relativistic spectrum, namely, graphene stripes and carbon nanotubes, has been analytically studied. The bound state as a superposition of two chiral states is completely described by their relative phase. The criteria of bound states appearance have been obtained based on the variable phase method (VPM) and the relativistic Levinson theorem developed via the VPM. The problem of bound states is reduced to the analysis of singularities of some vector field where the Levinson theorem appears as the Poincare indices theorem for closed trajectories of this field. The reduction of the VPM equation to the non-relativistic and semi-classical limits has been done. The limit of the small momentum p_y of the transverse quantization is applicable to arbitrary integrable potential. In this case the only confined mode is predicted.

D. S. Miserev

2014-08-24T23:59:59.000Z

63

Casting methods  

DOE Patents [OSTI]

A casting device includes a covered crucible having a top opening and a bottom orifice, a lid covering the top opening, a stopper rod sealing the bottom orifice, and a reusable mold having at least one chamber, a top end of the chamber being open to and positioned below the bottom orifice and a vacuum tap into the chamber being below the top end of the chamber. A casting method includes charging a crucible with a solid material and covering the crucible, heating the crucible, melting the material, evacuating a chamber of a mold to less than 1 atm absolute through a vacuum tap into the chamber, draining the melted material into the evacuated chamber, solidifying the material in the chamber, and removing the solidified material from the chamber without damaging the chamber.

Marsden, Kenneth C.; Meyer, Mitchell K.; Grover, Blair K.; Fielding, Randall S.; Wolfensberger, Billy W.

2012-12-18T23:59:59.000Z

64

Development of A Cryogenic Drift Cell Spectrometer and Methods for Improving the Analytical Figures of Merit for Ion Mobility-Mass Spectrometry Analysis  

E-Print Network [OSTI]

A cryogenic (325-80 K) ion mobility-mass spectrometer was designed and constructed in order to improve the analytical figures-of-merit for the chemical analysis of small mass analytes using ion mobility-mass spectrometry. The instrument incorporates...

May, Jody C.

2010-10-12T23:59:59.000Z

65

Material Point Methods  

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

Material Point Methods and Multiphysics for Fracture and Multiphase Problems Joseph Teran, UCLA and Alice Koniges, LBL Contact: jteran@math.ucla.edu Material point methods (MPM)...

66

Hydrogen Production Methods  

Science Journals Connector (OSTI)

Commercially available hydrogen production methods such as steam reforming of natural gas, ... process that are based on fossil hydrocarbons and methods in the stage of development, like thermolysis ... radiolysi...

Y. Yrm

1995-01-01T23:59:59.000Z

67

Lattice Boltzmann Method  

Science Journals Connector (OSTI)

The lattice Boltzmann method is a discrete computational method based upon the lattice gas automata a simplified, fictitious molecular ... model. It consists of three basic tasks: lattice Boltzmann equation, lattice

Dr. Jian Guo Zhou

2004-01-01T23:59:59.000Z

68

Method of intrinsic marking  

DOE Patents [OSTI]

A method of pulsed laser intrinsic marking can provide a unique identifier to detect tampering or counterfeiting.

Adams, David P; McDonald, Joel Patrick; Jared, Bradley Howell; Hodges, V. Carter; Hirschfeld, Deidre; Blair, Dianna S

2014-04-01T23:59:59.000Z

69

Immunoassay, biosensors and other nonchromatographic methods  

E-Print Network [OSTI]

. Gee and Bruce D. Hammock pp. 623­679 in Handbook of Residue Analytical Methods for Agrochemicals (ISBN for Agrochemicals. C 2003 John Wiley & Sons Ltd. #12;624 Recent advances in analytical technology, immunoassay the potential for ELISA for agrochemicals and environmental pollutants. Since then, the use of immunoassay

Hammock, Bruce D.

70

An analytical coarse-graining method which preserves the free energy, structural correlations, and thermodynamic state of polymer melts from the atomistic to the mesoscale  

SciTech Connect (OSTI)

Structural and thermodynamic consistency of coarse-graining models across multiple length scales is essential for the predictive role of multi-scale modeling and molecular dynamic simulations that use mesoscale descriptions. Our approach is a coarse-grained model based on integral equation theory, which can represent polymer chains at variable levels of chemical details. The model is analytical and depends on molecular and thermodynamic parameters of the system under study, as well as on the direct correlation function in the k ? 0 limit, c{sub 0}. A numerical solution to the PRISM integral equations is used to determine c{sub 0}, by adjusting the value of the effective hard sphere diameter, d{sub HS}, to agree with the predicted equation of state. This single quantity parameterizes the coarse-grained potential, which is used to perform mesoscale simulations that are directly compared with atomistic-level simulations of the same system. We test our coarse-graining formalism by comparing structural correlations, isothermal compressibility, equation of state, Helmholtz and Gibbs free energies, and potential energy and entropy using both united atom and coarse-grained descriptions. We find quantitative agreement between the analytical formalism for the thermodynamic properties, and the results of Molecular Dynamics simulations, independent of the chosen level of representation. In the mesoscale description, the potential energy of the soft-particle interaction becomes a free energy in the coarse-grained coordinates which preserves the excess free energy from an ideal gas across all levels of description. The structural consistency between the united-atom and mesoscale descriptions means the relative entropy between descriptions has been minimized without any variational optimization parameters. The approach is general and applicable to any polymeric system in different thermodynamic conditions.

McCarty, J.; Clark, A. J.; Copperman, J.; Guenza, M. G., E-mail: mguenza@uoregon.edu [Department of Chemistry and Biochemistry, and Institute of Theoretical Science, University of Oregon, Eugene, Oregon 97403 (United States)

2014-05-28T23:59:59.000Z

71

Insulation Resistance Measurement Methods  

Science Journals Connector (OSTI)

A traditional method of insulation resistance measurement in live DC networks is ... of an ammeter is described. Formulas for insulation equivalent resistance calculation are derived with help...

Piotr Olszowiec

2013-01-01T23:59:59.000Z

72

Accelerated Molecular Dynamics Methods  

Broader source: Energy.gov [DOE]

This presentation on Accelerated Molecular Dynamics Methods was given at the DOE Theory Focus Session on Hydrogen Storage Materials on May 18, 2006.

73

Method of forming nanodielectrics  

DOE Patents [OSTI]

A method of making a nanoparticle filled dielectric material. The method includes mixing nanoparticle precursors with a polymer material and reacting the nanoparticle mixed with the polymer material to form nanoparticles dispersed within the polymer material to form a dielectric composite.

Tuncer, Enis [Knoxville, TN; Polyzos, Georgios [Oak Ridge, TN

2014-01-07T23:59:59.000Z

74

Accelerated Metropolis method  

Science Journals Connector (OSTI)

It is shown that the freedom in the choice of the proposal matrix in the generalized Metropolis method can be used to greatly enhance the efficiency of the method. For example, the difficulties associated with the existence of multiple length scales in electronic structure calculations can be avoided by making an intelligent choice. Results are presented for Ne, Ar, and Li2.

C. J. Umrigar

1993-07-19T23:59:59.000Z

75

Water treatment method  

DOE Patents [OSTI]

A method is described for reducing the concentration of any undesirable metals dissolved in contaminated water, such as waste water. The method involves uniformly reacting the contaminated water with an excess amount of solid particulate calcium sulfite to insolubilize the undesirable metal ions, followed by removal thereof and of the unreacted calcium sulfite.

Martin, F.S.; Silver, G.L.

1991-04-30T23:59:59.000Z

76

Methods for data classification  

DOE Patents [OSTI]

The present invention provides methods for classifying data and uncovering and correcting annotation errors. In particular, the present invention provides a self-organizing, self-correcting algorithm for use in classifying data. Additionally, the present invention provides a method for classifying biological taxa.

Garrity, George (Okemos, MI); Lilburn, Timothy G. (Front Royal, VA)

2011-10-11T23:59:59.000Z

77

Cleaning method and apparatus  

DOE Patents [OSTI]

A method of very thoroughly and quikcly cleaning a guaze electrode used in chemical analyses is given, as well as an automobile cleaning apparatus which makes use of the method. The method generates very little waste solution, and this is very important in analyzing radioactive materials, especially in aqueous solutions. The cleaning apparatus can be used in a larger, fully automated controlled potential coulometric apparatus. About 99.98% of a 5 mg plutonium sample was removed in less than 3 minutes, using only about 60 ml of rinse solution and two main rinse steps.

Jackson, D.D.; Hollen, R.M.

1981-02-27T23:59:59.000Z

78

Method for inducing hypothermia  

DOE Patents [OSTI]

Systems for phase-change particulate slurry cooling equipment and methods to induce hypothermia in a patient through internal and external cooling are provided. Subcutaneous, intravascular, intraperitoneal, gastrointestinal, and lung methods of cooling are carried out using saline ice slurries or other phase-change slurries compatible with human tissue. Perfluorocarbon slurries or other slurry types compatible with human tissue are used for pulmonary cooling. And traditional external cooling methods are improved by utilizing phase-change slurry materials in cooling caps and torso blankets.

Becker, Lance B. (Chicago, IL); Hoek, Terry Vanden (Chicago, IL); Kasza, Kenneth E. (Palos Park, IL)

2008-09-09T23:59:59.000Z

79

Methods for measuring turbine efficiency  

SciTech Connect (OSTI)

This article describes the most common methods used for measuring hydro turbine efficiency. These methods are the acoustic flowmeter method, the Gibson (pressure-time) method, pressure drop across a flow restriction, propeller-driven flowmeters, the volumetric method, Winter-Kennedy taps, and the thermodynamic method. A new computerized variation of the Gibson method is also described.

O'Kelly, F.

1992-04-01T23:59:59.000Z

80

Method for synthesizing boracities  

DOE Patents [OSTI]

A method for producing boracites is disclosed in which a solution of divalent metal acetate, boric acid, and halogen acid is evaporated to dryness and the resulting solid is heated in an inert atmosphere under pressure.

Wolf, Gary A [Kennewick, WA

1982-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "method analytical method" 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

Semiparametric Methods and Applications  

E-Print Network [OSTI]

theoretical semiparametric methods, we study the dynamic effectiveness of marketing mix variables and the competition among the pioneer and early followers in pharmaceutical industry. With two pharmaceutical categories data, we find dynamic effectiveness...

Lin, Zhongjian

2014-05-02T23:59:59.000Z

82

Entropic lattice Boltzmann methods  

Science Journals Connector (OSTI)

...research-article Research Article Entropic lattice Boltzmann methods Bruce M Boghosian 1...methodology for constructing lattice Boltzmann models of hydrodynamics with...visualizing the state-space of lattice Boltzmann algorithms that conserve a given...

2001-01-01T23:59:59.000Z

83

Subcell Remapping Method  

National Nuclear Security Administration (NNSA)

Subcell Subcell Remapping Method on Staggered Polygonal Grids for Arbitrary Lagrangian-Eulerian Methods Mikhail Shashkov T-7, LANL, shashkov@lanl.gov webpage: cnls.lanl.gov/∼ shashkov Raphael Loubere, T-7, LANL This work was performed under the auspices of the US Department of Energy at Los Alamos National Laboratory, under contract W-7405-ENG-36. The authors acknowledge the partial support of the ASC-ASCI Program at LANL and MICS DOE/ASCR Program in the Applied Mathematical Sciences 1 Outline * Arbitrary Lagrangian-Eulerian (ALE) Methods * Lagrangian Stage - Discretization, Subcell forces, Artificial Viscosity * Rezone Stage - Reference Jacobian Strategy, Untangling * Staggered Remap - Statement, Requirements and Main Stages - Gathering Stage - Subcell Remapping Stage - Scattering Stage - Numerical Examples * References 2 Arbitrary Lagrangian-Eulerian (ALE) Methods

84

Combined construction method  

Science Journals Connector (OSTI)

When selecting the optimal scheme of performing earthworks with volumes exceeding 800, 000 m3, it is revommended to consider the use of the combined methods. This is especially necessary in those cases when the u...

B. M. Shkundin

1987-10-01T23:59:59.000Z

85

Method of saccharifying cellulose  

DOE Patents [OSTI]

A method of saccharifying cellulose by incubation with the cellulase of Clostridium thermocellum in a broth containing an efficacious amount of a reducing agent. Other incubation parameters which may be advantageously controlled to stimulate saccharification include the concentration of alkaline earth salts, pH, temperature, and duration. By the method of the invention, even native crystalline cellulose such as that found in cotton may be completely saccharified.

Johnson, Eric A. (Brookline, MA); Demain, Arnold L. (Wellesley, MA); Madia, Ashwin (Decatur, IL)

1985-09-10T23:59:59.000Z

86

Method of saccharifying cellulose  

DOE Patents [OSTI]

A method is disclosed of saccharifying cellulose by incubation with the cellulase of Clostridium thermocellum in a broth containing an efficacious amount of thiol reducing agent. Other incubation parameters which may be advantageously controlled to stimulate saccharification include the concentration of alkaline earth salts, pH, temperature, and duration. By the method of the invention, even native crystalline cellulose such as that found in cotton may be completely saccharified.

Johnson, E.A.; Demain, A.L.; Madia, A.

1983-05-13T23:59:59.000Z

87

Geophysical Methods | Open Energy Information  

Open Energy Info (EERE)

Geophysical Methods Geophysical Methods Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Geophysical Methods Details Activities (0) Areas (0) Regions (0) NEPA(1) Exploration Technique Information Exploration Group: Geophysical Techniques Exploration Sub Group: Geophysical Techniques Parent Exploration Technique: Information Provided by Technique Lithology: Stratigraphic/Structural: Hydrological: Thermal: Dictionary.png Geophysical Methods: Methods used to measure the physical properties of the earth Other definitions:Wikipedia Reegle Introduction There are five main types of geophysical methods used for geothermal resource discovery: Seismic Methods (active and passive) Electrical Methods Magnetic Methods Gravity Methods Radiometric Methods Seismic methods dominates oil and gas exploration, and probably accounts

88

HYDROCARBONS FROM PLANTS: ANALYTICAL METHODS AND OBSERVATIONS  

E-Print Network [OSTI]

or natural gas or even oil shale (which represents anotherto transform the coal or oil shale or gaseous, fuel. There

Calvin, Melvin

2013-01-01T23:59:59.000Z

89

Supplementary Information Method for Analyte Identification Using  

E-Print Network [OSTI]

an example where 2-nitrophenol and 2,4,6-trichlorophenol are simultaneously detected using the fluorescent-nitrophenol and 2,4,6-trichlorophenol Below we present typical data showing m

Santiago, Juan G.

90

HYDROCARBONS FROM PLANTS: ANALYTICAL METHODS AND OBSERVATIONS  

SciTech Connect (OSTI)

We have suggested that certain plants rich in hydrocarbon-like materials might be cultivated for renewable photosynthetic products. Two species were selected for experimental plantations: Euphorbia lathyris, an annual from seed and Euphorbia tirucalli, a perennial from cuttings, The yield from each species is over 10 barrels of oil/acre/year without genetic or agronomic improvement. In addition to plants, there are trees, such as species of Copaifera in Brazil and other tropical areas, which produce a diesel-like oil upon tapping. Each tree produces approximately 40 liters of hydrocarbon per year, and this material can be used directly by a diesel-powered car. Further efforts to develop plants as alternate energy sources are underway, as well as a continuing search for additional plant species throughout the world which have a similar capability.

Calvin, Melvin

1980-05-01T23:59:59.000Z

91

Methods | Transparent Cost Database  

Open Energy Info (EERE)

Methods Methods Disclaimer The data gathered here are for informational purposes only. Inclusion of a report in the database does not represent approval of the estimates by DOE or NREL. Levelized cost calculations DO NOT represent real world market conditions. The calculation uses a single discount rate in order to compare technology costs only. About the Cost Database For emerging energy technologies, a variety of cost and performance numbers are cited in presentations and reports for present-day characteristics and potential improvements. Amid a variety of sources and methods for these data, the Office of Energy Efficiency and Renewable Energy's technology development programs determine estimates for use in program planning. The Transparent Cost Database collects program cost and performance

92

Methods of forming steel  

DOE Patents [OSTI]

In one aspect, the invention encompasses a method of forming a steel. A metallic glass is formed and at least a portion of the glass is converted to a crystalline steel material having a nanocrystalline scale grain size. In another aspect, the invention encompasses another method of forming a steel. A molten alloy is formed and cooled the alloy at a rate which forms a metallic glass. The metallic glass is devitrified to convert the glass to a crystalline steel material having a nanocrystalline scale grain size. In yet another aspect, the invention encompasses another method of forming a steel. A first metallic glass steel substrate is provided, and a molten alloy is formed over the first metallic glass steel substrate to heat and devitrify at least some of the underlying metallic glass of the substrate.

Branagan, Daniel J. (Iona, ID); Burch, Joseph V. (Shelley, ID)

2001-01-01T23:59:59.000Z

93

Unorthodox theoretical methods  

SciTech Connect (OSTI)

The use of the ReaxFF force field to correlate with NMR mobilities of amine catalytic substituents on a mesoporous silica nanosphere surface is considered. The interfacing of the ReaxFF force field within the Surface Integrated Molecular Orbital/Molecular Mechanics (SIMOMM) method, in order to replicate earlier SIMOMM published data and to compare with the ReaxFF data, is discussed. The development of a new correlation consistent Composite Approach (ccCA) is presented, which incorporates the completely renormalized coupled cluster method with singles, doubles and non-iterative triples corrections towards the determination of heats of formations and reaction pathways which contain biradical species.

Nedd, Sean

2012-06-20T23:59:59.000Z

94

UNCORRECTED TRIBOLOGY METHODS1  

E-Print Network [OSTI]

UNCORRECTED PROOF TRIBOLOGY METHODS1 2 Uncertainty in Pin-on-Disk Wear Volume Measurements Using 3 Surface Scanning Techniques 4 R. S. Colbert · B. A. Krick · A. C. Dunn · 5 J. R. Vail · N. Argibay · W. G 2010 8 Abstract The uncertainty of wear volumes measured 9 using surface scanning techniques is often

Sawyer, Wallace

95

Sampling system and method  

DOE Patents [OSTI]

The present disclosure provides an apparatus and method for coupling conduit segments together. A first pump obtains a sample and transmits it through a first conduit to a reservoir accessible by a second pump. The second pump further conducts the sample from the reservoir through a second conduit.

Decker, David L.; Lyles, Brad F.; Purcell, Richard G.; Hershey, Ronald Lee

2013-04-16T23:59:59.000Z

96

Solar Energy Storage Methods  

Science Journals Connector (OSTI)

Solar Energy Storage Methods ... Conducting polymers have superior specific energies to the carbon-based supercapacitors and have greater power capability, compared to inorganic battery material. ... The question of load redistribution for better energetic usage is of vital importance since these new renewable energy sources are often intermittent. ...

Yu Hou; Ruxandra Vidu; Pieter Stroeve

2011-06-09T23:59:59.000Z

97

INTRODUCTION CURRENT METHODS  

E-Print Network [OSTI]

membrane, leaving salt and contaminants behind. Another common method of desalination is vacuum distillation, in which water is separated from salt and other contaminants based on the fact that water and leave behind the brine from the salt water, thereby purifying potable water. Presently, the major

Auerbach, Scott M.

98

Biomass treatment method  

DOE Patents [OSTI]

A method for treating biomass was developed that uses an apparatus which moves a biomass and dilute aqueous ammonia mixture through reaction chambers without compaction. The apparatus moves the biomass using a non-compressing piston. The resulting treated biomass is saccharified to produce fermentable sugars.

Friend, Julie (Claymont, DE); Elander, Richard T. (Evergreen, CO); Tucker, III; Melvin P. (Lakewood, CO); Lyons, Robert C. (Arvada, CO)

2010-10-26T23:59:59.000Z

99

RECENT ADVANCES COMPUTATIONAL METHODS  

E-Print Network [OSTI]

RECENT ADVANCES ON COMPUTATIONAL METHODS FOR STRUCTURED INVERSE QUADRATIC EIGENVALUE PROBLEMS by Biswa Nath Datta Department of Mathematical Sciences Northern Illinois University DeKalb, IL 60115 E-Element Model Updating in Aerospace and Au- tomobile Industries. 10 #12;Quadratic Inverse Eigenvalue Problems

Datta, Biswa

100

Heart imaging method  

DOE Patents [OSTI]

A method for providing an image of the human heart's electrical system derives time-of-flight data from an array of EKG electrodes and this data is transformed into phase information. The phase information, treated as a hologram, is reconstructed to provide an image in one or two dimensions of the electrical system of the functioning heart.

Collins, H. Dale (Richland, WA); Gribble, R. Parks (Richland, WA); Busse, Lawrence J. (Littleton, CO)

1991-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "method analytical method" 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

Accelerated Molecular Dynamics Methods  

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

Dynamics Methods Dynamics Methods for Infrequent Events Arthur F. Voter Theoretical Division Los Alamos National Laboratory Los Alamos, New Mexico U.S. Department of Energy Theory Focus Session on Hydrogen Storage Materials Crystal City, VA May 18, 2006 Los Alamos Acknowledgments Blas P. Uberuaga (LANL, MST-8) Francesco Montalenti (U. Milano-Bicocca) Graeme Henkelman (U. Texas at Austin) Timothy C. Germann (LANL, X-7) James A. Sprague (NRL) Mads Sorensen (Novo Nordisk A/S, Copenhagen) Sriram Swaminarayan (LANL, MST-8) Steve Stuart (Clemson) David Sholl (Carnegie Mellon) John Hamilton (Sandia) Wolfgang Windl (Ohio State) Roger Smith (U. Loughborough) Robin Grimes (Imperial College) Kurt Sickafus (LANL, MST-8) Jacques Amar (U. Toledo) DOE Office of Basic Energy Sciences Motorola Intel Los Alamos Outline

102

Die singulation method  

DOE Patents [OSTI]

A method is disclosed for singulating die from a semiconductor substrate (e.g. a semiconductor-on-insulator substrate or a bulk silicon substrate) containing an oxide layer (e.g. silicon dioxide or a silicate glass) and one or more semiconductor layers (e.g. monocrystalline or polycrystalline silicon) located above the oxide layer. The method etches trenches through the substrate and through each semiconductor layer about the die being singulated, with the trenches being offset from each other around at least a part of the die so that the oxide layer between the trenches holds the substrate and die together. The trenches can be anisotropically etched using a Deep Reactive Ion Etching (DRIE) process. After the trenches are etched, the oxide layer between the trenches can be etched away with a HF etchant to singulate the die. A release fixture can be located near one side of the substrate to receive the singulated die.

Swiler, Thomas P [Albuquerque, NM; Garcia, Ernest J [Albuquerque, NM; Francis, Kathryn M [Rio Rancho, NM

2014-01-07T23:59:59.000Z

103

Cold isopressing method  

DOE Patents [OSTI]

A cold isopressing method in which two or more layers of material are formed within an isopressing mold. One of the layers consists of a tape-cast film. The layers are isopressed within the isopressing mold, thereby to laminate the layers and to compact the tape-cast film. The isopressing mold can be of cylindrical configuration with the layers being coaxial cylindrical layers. The materials used in forming the layers can contain green ceramic materials and the resultant structure can be fired and sintered as necessary and in accordance with known methods to produce a finished composite, ceramic structure. Further, such green ceramic materials can be of the type that are capable of conducting hydrogen or oxygen ions at high temperature with the object of utilizing the finished composite ceramic structure as a ceramic membrane element.

Chen, Jack C. (Getzville, NY); Stawisuck, Valerie M. (North Tonawanda, NY); Prasad, Ravi (East Amherst, NY)

2003-01-01T23:59:59.000Z

104

Vapor spill monitoring method  

DOE Patents [OSTI]

Method for continuous sampling of liquified natural gas effluent from a spill pipe, vaporizing the cold liquified natural gas, and feeding the vaporized gas into an infrared detector to measure the gas composition. The apparatus utilizes a probe having an inner channel for receiving samples of liquified natural gas and a surrounding water jacket through which warm water is flowed to flash vaporize the liquified natural gas.

Bianchini, Gregory M. (Livermore, CA); McRae, Thomas G. (Livermore, CA)

1985-01-01T23:59:59.000Z

105

Parametric Lattice Boltzmann Method  

E-Print Network [OSTI]

The discretized equilibrium distributions of the lattice Boltzmann method are presented by using the coefficients of the Lagrange interpolating polynomials that pass through the points related to discrete velocities and using moments of the Maxwell-Boltzmann distribution. The ranges of flow velocity and temperature providing positive valued distributions vary with regulating discrete velocities as parameters. In addition, thermal flows are simulated by only five on-lattice discrete velocities and the distributions upon asymmetric sets of discrete velocities are introduced.

Shim, Jae Wan

2014-01-01T23:59:59.000Z

106

Consistent Lattice Boltzmann Method  

Science Journals Connector (OSTI)

Lack of energy conservation in lattice Boltzmann models leads to unrealistically high values of the bulk viscosity. For this reason, the lattice Boltzmann method remains a computational tool rather than a model of a fluid. A novel lattice Boltzmann model with energy conservation is derived from Boltzmanns kinetic theory. Simulations demonstrate that the new lattice Boltzmann model is the valid approximation of the Boltzmann equation for weakly compressible flows and microflows.

Santosh Ansumali and Iliya V. Karlin

2005-12-29T23:59:59.000Z

107

Course description Mathematical Methods  

E-Print Network [OSTI]

. The method of characteristics. 7 Second-order PDE in two variables. Separation of variables for the heat Grading Outline References References Course slides will be posted on the intranet before each session.mit.edu/OcwWeb/Electrical-Engineering-and-Computer-Science/6-241Fall2003/CourseHome/ Separate chapters will be also posted on the intranet. BL S. Boyd and S

Batlle, Carles

108

Method for detecting biomolecules  

DOE Patents [OSTI]

A method for detecting and measuring the concentration of biomolecules in solution, utilizing a conducting electrode in contact with a solution containing target biomolecules, with a film with controllable pore size distribution characteristics applied to at least one surface of the conducting electrode. The film is functionalized with probe molecules that chemically interact with the target biomolecules at the film surface, blocking indicator molecules present in solution from diffusing from the solution to the electrode, thereby changing the electrochemical response of the electrode

Huo, Qisheng (Albuquerque, NM); Liu, Jun (Albuquerque, NM)

2008-08-12T23:59:59.000Z

109

Innovative sludge stabilization method  

SciTech Connect (OSTI)

Sludge is generated in many water and wastewater treatment processes, both biological and physical/chemical. Examples include biological sludges from sanitary and industrial wastewater treatment operations and chemical sludges such as those produced when metals are removed from metal plating wastewater. Even some potable water plants produce sludge, such as when alum is used as a flocculating agent to clarify turbid water. Because sludge is produced from such a variety of operations, different techniques have been developed to remove water from sludges and reduce the sludge volume and mass, thus making the sludge more suitable for recovery or disposal. These techniques include mechanical (e.g., filter presses), solar (sludge drying beds), and thermal. The least expensive of these methods, neglecting land costs, involves sludge drying beds and lagoons. The solar method was widely used in sewage treatment plants for many years, but has fallen in disfavor in the US; mechanical and thermal methods have been preferred. Since environmental remediation often requires managing sludges, this article presents a discussion of a variation of sludge lagoons known as evaporative sludge stabilization. Application of this process to the closure of two 2.5 acre (10117 m{sup 2}) hazardous waste surface impoundments will be discussed. 1 ref., 2 figs.

Riggenbach, J.D.

1995-06-01T23:59:59.000Z

110

Method for FractMethod for Fracture Detection Using Multicomponent...  

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

Method for FractMethod for Fracture Detection Using Multicomponent Seismic Dataure Detection Using Multicomponent Seismic Data Dr. Bryan DeVault Department of Geophysics Colorado...

111

Imaging sunspots using helioseismic methods  

Science Journals Connector (OSTI)

...poorly understood areas in solar physics. Imaging local anomalous...sunspots and the surrounding solar active regions. By highlighting...Interpretation, Computer-Assisted methods Oscillometry methods Rheology methods Solar Activity Solar System Vibration

2005-01-01T23:59:59.000Z

112

Method of drying articles  

DOE Patents [OSTI]

A method of drying a green particulate article includes the steps of: a. Providing a green article which includes a particulate material and a pore phase material, the pore phase material including a solvent; and b. contacting the green article with a liquid desiccant for a period of time sufficient to remove at least a portion of the solvent from the green article, the pore phase material acting as a semipermeable barrier to allow the solvent to be sorbed into the liquid desiccant, the pore phase material substantially preventing the liquid desiccant from entering the pores.

Janney, Mark A. (Knoxville, TN); Kiggans, Jr., James O. (Oak Ridge, TN)

1999-01-01T23:59:59.000Z

113

Control system design method  

DOE Patents [OSTI]

A control system design method and concomitant control system comprising representing a physical apparatus to be controlled as a Hamiltonian system, determining elements of the Hamiltonian system representation which are power generators, power dissipators, and power storage devices, analyzing stability and performance of the Hamiltonian system based on the results of the determining step and determining necessary and sufficient conditions for stability of the Hamiltonian system, creating a stable control system based on the results of the analyzing step, and employing the resulting control system to control the physical apparatus.

Wilson, David G. (Tijeras, NM); Robinett, III, Rush D. (Tijeras, NM)

2012-02-21T23:59:59.000Z

114

Brush Management Methods  

E-Print Network [OSTI]

such junipers and deposition as oaks mesquite on sand- clay loams Grazon ET, Controls most species 5+ May temporarily in- Crossbow, except junipers and jure grasses in imme- Diesel lime pricklyash diate area of woody (basal bark plant, depending on application... vegetation caused by disking make the method most applicable to deep soils that can be seeded. Chaining Chaining is used to knock down and thin moderate to thick stands of brush (Figure 9). Chaining alone gives only temporary control. It is most effective...

Welch, Tommy G.

2000-07-14T23:59:59.000Z

115

Method of joining ceramics  

DOE Patents [OSTI]

According to the method of the present invention, joining a first bi-element carbide to a second bi-element carbide, has the steps of: (a) forming a bond agent containing a metal carbide and silicon; (b) placing the bond agent between the first and second bi-element carbides to form a pre-assembly; and (c) pressing and heating the pre-assembly in a non-oxidizing atmosphere to a temperature effective to induce a displacement reaction creating a metal silicon phase bonding the first and second bi-element carbides.

Henager, Jr., Charles H. (Kennewick, WA); Brimhall, John L. (West Richland, WA)

2000-01-01T23:59:59.000Z

116

Method of drying articles  

DOE Patents [OSTI]

A method of drying a green particulate article includes the steps of: (a) Providing a green article which includes a particulate material and a pore phase material, the pore phase material including a solvent; and (b) contacting the green article with a liquid desiccant for a period of time sufficient to remove at least a portion of the solvent from the green article, the pore phase material acting as a semipermeable barrier to allow the solvent to be sorbed into the liquid desiccant, the pore phase material substantially preventing the liquid desiccant from entering the pores. 3 figs.

Janney, M.A.; Kiggans, J.O. Jr.

1999-03-23T23:59:59.000Z

117

Method for resonant measurement  

DOE Patents [OSTI]

A method of measurement of objects to determine object flaws, Poisson's ratio (.sigma.) and shear modulus (.mu.) is shown and described. First, the frequency for expected degenerate responses is determined for one or more input frequencies and then splitting of degenerate resonant modes are observed to identify the presence of flaws in the object. Poisson's ratio and the shear modulus can be determined by identification of resonances dependent only on the shear modulus, and then using that shear modulus to find Poisson's ratio using other modes dependent on both the shear modulus and Poisson's ratio.

Rhodes, George W. (5201 Rio Grande Blvd., N.W., Albuquerque, NM 87107); Migliori, Albert (Rte. 4, Box 258 Tano Rd., Sante Fe, NM 87501); Dixon, Raymond D. (396 Connie Ave., White Rock, NM 87544)

1996-01-01T23:59:59.000Z

118

Methods of making monolayers  

DOE Patents [OSTI]

The invention pertains to methods of forming monolayers on various surfaces. The surfaces can be selected from a wide array of materials, including, for example, aluminum dioxide, silicon dioxide, carbon and SiC. The substrates can be planar or porous. The monolayer is formed under enhanced pressure conditions. The monolayer contains functionalized molecules, and accordingly functionalizes a surface of the substrate. The properties of the functionalized substrate can enhance the substrate's applicability for numerous purposes including, for example, utilization in extracting contaminants, or incorporation into a polymeric matrix.

Alford, Kentin L. (Pasco, WA); Simmons, Kevin L. (Kennewick, WA); Samuels, William D. (Richland, WA); Zemanian, Thomas S. (Richland, WA); Liu, Jun (Albuquerque, NM); Shin, Yongsoon (Richland, WA); Fryxell, Glen E. (Kennewick, WA)

2009-12-08T23:59:59.000Z

119

Method for welding beryllium  

DOE Patents [OSTI]

A method is provided for joining beryllium pieces which comprises: depositing aluminum alloy on at least one beryllium surface; contacting that beryllium surface with at least one other beryllium surface; and welding the aluminum alloy coated beryllium surfaces together. The aluminum alloy may be deposited on the beryllium using gas metal arc welding. The aluminum alloy coated beryllium surfaces may be subjected to elevated temperatures and pressures to reduce porosity before welding the pieces together. The aluminum alloy coated beryllium surfaces may be machined into a desired welding joint configuration before welding. The beryllium may be an alloy of beryllium or a beryllium compound. The aluminum alloy may comprise aluminum and silicon.

Dixon, Raymond D. (Los Alamos, NM); Smith, Frank M. (Espanola, NM); O'Leary, Richard F. (Los Alamos, NM)

1997-01-01T23:59:59.000Z

120

Method for producing superconductors  

SciTech Connect (OSTI)

A method for producing a V3Al superconductor is disclosed which comprises making a composite composed of a sheath portion of a copper alloy containing 1 to 15 atomic percent of germanium, 1 to 15 atomic percent of silicon or 2 to 25 atomic percent of gallium and surrounded by the sheath portion, at least one core portion of a vanadium-aluminum alloy containing 0.5 to 20 atomic percent of aluminum; elongating the composite; and then heat-treating the elongated composite thereby to form a V3(Al, Ge), V3(Al, Si) or V3(Al, Ga) layer between the sheath portion and the core portion.

Inoue, K.; Tachikawa, K.; Togano, K.

1982-03-30T23:59:59.000Z

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


121

About the Uniform Methods Project  

Office of Energy Efficiency and Renewable Energy (EERE)

The Uniform Methods Project is developing Methods for Determining Energy Efficiency Savings for Specific Measures through collaboration with energy efficiency program administrators, stakeholders,...

122

Combining building thermal simulation methods and LCA methods  

E-Print Network [OSTI]

- 1 - Combining building thermal simulation methods and LCA methods Frank Pedersen, Researcher assessment (LCA) method into a whole building hygro-thermal simulation tool. The motivation for the work of buildings (CEN/TC 350). Combining LCA methods with hygro-thermal simulation tools enables designers

Hansen, René Rydhof

123

Nucleic acid detection methods  

DOE Patents [OSTI]

The invention relates to methods for rapidly determining the sequence and/or length a target sequence. The target sequence may be a series of known or unknown repeat sequences which are hybridized to an array of probes. The hybridized array is digested with a single-strand nuclease and free 3{prime}-hydroxyl groups extended with a nucleic acid polymerase. Nuclease cleaved heteroduplexes can be easily distinguish from nuclease uncleaved heteroduplexes by differential labeling. Probes and target can be differentially labeled with detectable labels. Matched target can be detected by cleaving resulting loops from the hybridized target and creating free 3-hydroxyl groups. These groups are recognized and extended by polymerases added into the reaction system which also adds or releases one label into solution. Analysis of the resulting products using either solid phase or solution. These methods can be used to detect characteristic nucleic acid sequences, to determine target sequence and to screen for genetic defects and disorders. Assays can be conducted on solid surfaces allowing for multiple reactions to be conducted in parallel and, if desired, automated. 18 figs.

Smith, C.L.; Yaar, R.; Szafranski, P.; Cantor, C.R.

1998-05-19T23:59:59.000Z

124

BEGIN VCALENDAR METHOD PUBLISH  

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

BEGIN VCALENDAR BEGIN VCALENDAR METHOD PUBLISH PRODID aps anl gov NONSGML iCalcreator VERSION X WR TIMEZONE America Chicago BEGIN VEVENT UID T152245CST wfNso0 aps anl gov DTSTAMP T212245Z DESCRIPTION DTEND TZID America Chicago T130000 DTSTART TZID America Chicago T120000 LOCATION A1100 SUMMARY User Science Seminar resumes END VEVENT BEGIN VEVENT UID T152245CST bNeb1D aps anl gov DTSTAMP T212245Z DESCRIPTION DTEND TZID America Chicago T090000 DTSTART TZID America Chicago T080000 SUMMARY Run Begins END VEVENT BEGIN VEVENT UID T152245CST C7VJtG aps anl gov DTSTAMP T212245Z DESCRIPTION Anthony Cugini DOE NETL DTEND TZID America Chicago T120000 DTSTART TZID America Chicago T110000 LOCATION Y AUD SUMMARY Application of Computational Science for Fossil Fuel Conversion

125

Electrochemical catalyst recovery method  

DOE Patents [OSTI]

A method of recovering catalyst material from latent catalyst material solids includes: (a) combining latent catalyst material solids with a liquid acid anolyte solution and a redox material which is soluble in the acid anolyte solution to form a mixture; (b) electrochemically oxidizing the redox material within the mixture into a dissolved oxidant, the oxidant having a potential for oxidation which is effectively higher than that of the latent catalyst material; (c) reacting the oxidant with the latent catalyst material to oxidize the latent catalyst material into at least one oxidized catalyst species which is soluble within the mixture and to reduce the oxidant back into dissolved redox material; and (d) recovering catalyst material from the oxidized catalyst species of the mixture. The invention is expected to be particularly useful in recovering spent catalyst material from petroleum hydroprocessing reaction waste products having adhered sulfides, carbon, hydrocarbons, and undesired metals, and as well as in other industrial applications. 3 figs.

Silva, L.J.; Bray, L.A.

1995-05-30T23:59:59.000Z

126

Thermal Recovery Methods  

SciTech Connect (OSTI)

Thermal Recovery Methods describes the basic concepts of thermal recovery and explains the injection patterns used to exploit reservoir conditions. Basic reservoir engineering is reviewed with an emphasis on changes in flow characteristics caused by temperature. The authors discuss an energy balance for steam and combustion drive, and they explain in situ reactions. Heat loss, combustion drive, and steam displacement also are examined in detail, as well as cyclic steam injection, downhole ignition, well heating, and low-temperature oxidation. Contents: Thermal processes; Formation and reservoir evaluations; Well patterns and spacing; Flow and process equations; Laboratory simulation of thermal recovery; Heat loss and transmission; Displacement and production; Equipment; Basic data for field selection; Laboratory evaluation of combustion characteristics; Thermal properties of reservoirs and fluids.

White, P.D.; Moss, J.T.

1983-01-01T23:59:59.000Z

127

Method for controlling brazing  

DOE Patents [OSTI]

A method for making a braze joint across a discontinuity in a work piece using alternating current. A filler metal is pre-placed at a location sufficiently close to the discontinuity such that, when an alternating current is applied across a work piece to heat the work piece and melt the filler metal, the filler metal is drawn into the discontinuity. The alternating current is maintained for a set residence time, generally less than 10 seconds and more particularly less than 3 seconds. The alternating current is then altered, generally by reducing the current and/or voltage such that the filler metal can solidify to form a braze joint of desired quality and thickness.

Hosking, F. Michael (Albuquerque, NM); Hall, Aaron C. (Albuquerque, NM); Givler, Richard C. (Albuquerque, NM); Walker, Charles A. (Albuquerque, NM)

2006-08-01T23:59:59.000Z

128

Freeze drying method  

DOE Patents [OSTI]

The present invention provides methods and apparatus for freeze drying in which a solution, which can be a radioactive salt dissolved within an acid, is frozen into a solid on vertical plates provided within a freeze drying chamber. The solid is sublimated into vapor and condensed in a cold condenser positioned above the freeze drying chamber and connected thereto by a conduit. The vertical positioning of the cold condenser relative to the freeze dryer helps to help prevent substances such as radioactive materials separated from the solution from contaminating the cold condenser. Additionally, the system can be charged with an inert gas to produce a down rush of gas into the freeze drying chamber to also help prevent such substances from contaminating the cold condenser.

Coppa, Nicholas V. (Malvern, PA); Stewart, Paul (Youngstown, NY); Renzi, Ernesto (Youngstown, NY)

1999-01-01T23:59:59.000Z

129

Magnesium fluoride recovery method  

DOE Patents [OSTI]

A method of obtaining magnesium fluoride substantially free from radioactive uranium from a slag containing the same and having a radioactivity level of at least about 7000 pCi/gm. The slag is ground to a particle size of about 200 microns or less. The ground slag is contacted with an acid under certain prescribed conditions to produce a liquid product and a particulate solid product. The particulate solid product is separated from the liquid and treated at least two more times with acid to produce a solid residue consisting essentially of magnesium fluoride substantially free of uranium and having a residual radioactivity level of less than about 1000 pCi/gm. In accordance with a particularly preferred embodiment of the invention a catalyst and an oxidizing agent are used during the acid treatment and preferably the acid is sulfuric acid having a strength of about 1.0 Normal.

Gay, Richard L. (Canoga Park, CA); McKenzie, Donald E. (Woodland Hills, CA)

1989-01-01T23:59:59.000Z

130

Method for maskless lithography  

DOE Patents [OSTI]

The present invention provides a method for maskless lithography. A plurality of individually addressable and rotatable micromirrors together comprise a two-dimensional array of micromirrors. Each micromirror in the two-dimensional array can be envisioned as an individually addressable element in the picture that comprises the circuit pattern desired. As each micromirror is addressed it rotates so as to reflect light from a light source onto a portion of the photoresist coated wafer thereby forming a pixel within the circuit pattern. By electronically addressing a two-dimensional array of these micromirrors in the proper sequence a circuit pattern that is comprised of these individual pixels can be constructed on a microchip. The reflecting surface of the micromirror is configured in such a way as to overcome coherence and diffraction effects in order to produce circuit elements having straight sides.

Sweatt, William C. (13027 Arrovo de Vista, Albuquerque, NM 87111); Stulen, Richard H. (5258 Roxanne Ct., Livermore, Alameda County, CA 94550)

2000-01-01T23:59:59.000Z

131

Floating Silicon Method  

SciTech Connect (OSTI)

The Floating Silicon Method (FSM) project at Applied Materials (formerly Varian Semiconductor Equipment Associates), has been funded, in part, by the DOE under a Photovoltaic Supply Chain and Cross Cutting Technologies grant (number DE-EE0000595) for the past four years. The original intent of the project was to develop the FSM process from concept to a commercially viable tool. This new manufacturing equipment would support the photovoltaic industry in following ways: eliminate kerf losses and the consumable costs associated with wafer sawing, allow optimal photovoltaic efficiency by producing high-quality silicon sheets, reduce the cost of assembling photovoltaic modules by creating large-area silicon cells which are free of micro-cracks, and would be a drop-in replacement in existing high efficiency cell production process thereby allowing rapid fan-out into the industry.

Kellerman, Peter

2013-12-21T23:59:59.000Z

132

Method for forming materials  

DOE Patents [OSTI]

A material-forming tool and a method for forming a material are described including a shank portion; a shoulder portion that releasably engages the shank portion; a pin that releasably engages the shoulder portion, wherein the pin defines a passageway; and a source of a material coupled in material flowing relation relative to the pin and wherein the material-forming tool is utilized in methodology that includes providing a first material; providing a second material, and placing the second material into contact with the first material; and locally plastically deforming the first material with the material-forming tool so as mix the first material and second material together to form a resulting material having characteristics different from the respective first and second materials.

Tolle, Charles R. (Idaho Falls, ID); Clark, Denis E. (Idaho Falls, ID); Smartt, Herschel B. (Idaho Falls, ID); Miller, Karen S. (Idaho Falls, ID)

2009-10-06T23:59:59.000Z

133

Method for etherifications  

DOE Patents [OSTI]

A method is described for producing tertiary ethers from C[sub 4] or C[sub 5] streams containing isobutene and isoamylene respectively in a process wherein a acidic cation exchange resin is used as the catalyst and as a distillation structure in a distillation reactor column, wherein the improvement is the operation of the catalytic distillation in two zones at different pressures, the first zone containing the catalyst packing and operated a higher pressure in the range of 100 to 200 psig in the case of C[sub 4] and 15 to 100 psig in the case of C[sub 5] which favors the etherification reaction and the second zone being a distillation operated at a lower pressure in the range of 0 to 100 psig in the case of C[sub 4] and 0 to 15 psig in the case of C[sub 5] wherein a first overhead from the first zone is fractionated to remove a portion of the unreacted alcohol from the first overhead and to return a condensed portion containing said alcohol to the first zone and to produce a second overhead having less alcohol than said first overhead. 3 figs.

Jones, E.M. Jr.

1985-03-12T23:59:59.000Z

134

Method of turbocharger control  

SciTech Connect (OSTI)

This patent describes a method of turbocharger control in a vehicle having an engine and a turbocharger for increasing the density of at least the air entering a cylinder of the engine. The turbocharger has at least a compressor and a turbine coupled by a shaft and a nozzle to increase the angular momentum of the flow of gas to the turbine. The nozzle has a housing and movable vanes to vary the angle and velocity that the exhaust gas hits the wheel of the turbine, and actuator for moving the vanes, a can separated by a diaphragm and having an A side and B side for actuating the actuator, solenoid-actuated valves for controlling the pressure in the A and B sides of the can, an electronic control unit (ECU) having memory for storing data and predetermined values and for actuating and de-actuating the solenoid-actuated valves, a plurality of inputs to the ECU for providing input data indicative of engine temperature, engine speed, vehicle speed, intake manifold pressure, throttle angle, engine knock and charge air temperature.

Lyon, K.M.

1990-10-09T23:59:59.000Z

135

Method of Separating Tangents  

E-Print Network [OSTI]

The well known Jensen inequality, holds true for every convex functions. However, we found that it is possible to apply it to some problems related to nonconvex functions for which Jensen's inequality holds true locally. Having considered a set of such functions, we noted some general patterns. We show that the key point, which provides Jensen's inequality holds true locally, is that the plot of function should be situated at only one side from the local base curve defined compatible with conditional variables. Moreover, we have achieved even more general result. It turned out that the graph of the function can be located on either sides of the local base curve, with the conditions. This result allows one to prove easily difficult types of inequalities, and on the other hand to broaden applications in physics, economy, and information theory. On the basis of the conducted analysis of different sources it is possible to claim, that our method is applicable to about three fourths of studied inequalities related to Jensen's inequality.

Adilsultan Lepes

2014-12-12T23:59:59.000Z

136

Method for producing superconductors  

SciTech Connect (OSTI)

In a method for producing v/sub 3/Ga superconductors which comprises forming a composite of a core portion and a sheath portion surrounding said core portion, said sheath portion being composed of a gallium-containing alloy selected from the group consisting of copper-gallium and copper-silver-gallium alloys, and said core portion being composed of a vanadium metal, elongating said composite, and heat-treating the resulting elongated composite to form a v/sub 3/Ga layer between said sheath and core portions; the improvement wherein the gallium-containing alloy has a gallium content of 0.1 to 30 atomic percent and additionally contains at least one metal selected from the group consisting of 0.05 to 5 atomic percent of magnesium, 0.5 to 10 atomic percent of aluminum , 0.1 to 10 atomic percent of cerium and 0.05 to 10 atomic percent of sodium, and the vanadium metal is a vanadium alloy containing 0.1 to 15 atomic percent of gallium.

Asano, T.; Tachikawa, K.; Tanaka, Y.; Yoshida, Y.

1981-06-23T23:59:59.000Z

137

Methods of Purchasing Purchasing methods include the different  

E-Print Network [OSTI]

" purchases must be reviewed and approved by the Controller's Office. This may result in the end user beingMethods of Purchasing Purchasing methods include the different processes of ordering goods and/or services, and encumbering funds. #12;Method of Purchase Field Purchase Orders (FPO) Accepted

138

Neutron Scattering Methods in Chemistry  

Science Journals Connector (OSTI)

Starting with basic properties of the neutron, this chapter reviews the most important neutron scattering methods that provide valuable information for a ... wide, from standard methods of crystallography to neutron

L. Pusztai

2011-01-01T23:59:59.000Z

139

The Uniform Methods Project: Methods for Determining Energy Efficiency  

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

The Uniform Methods Project: Methods for Determining Energy The Uniform Methods Project: Methods for Determining Energy Efficiency Savings for Specific Measures (April 2013) The Uniform Methods Project: Methods for Determining Energy Efficiency Savings for Specific Measures (April 2013) In April 2013 the National Renewable Energy Laboratory (NREL) published the first set of protocols for determining energy savings from energy efficiency measures and programs. Funded by the Office of Electricity Delivery and Energy Reliability and the Office of Energy Efficiency and Renewable Energy, the developed protocols provide a straightforward method for evaluating gross energy savings for each of the most common residential and commercial measures and programs offered by ratepayer-funded energy efficiency programs in the US. Using a single measurement and verification

140

Methods of making textured catalysts  

DOE Patents [OSTI]

A textured catalyst having a hydrothermally-stable support, a metal oxide and a catalyst component is described. Methods of conducting aqueous phase reactions that are catalyzed by a textured catalyst are also described. The invention also provides methods of making textured catalysts and methods of making chemical products using a textured catalyst.

Werpy, Todd (West Richland, WA); Frye, Jr., John G. (Richland, WA); Wang, Yong (Richland, WA); Zacher, Alan H. (Kennewick, WA)

2010-08-17T23:59:59.000Z

Note: This page contains sample records for the topic "method analytical method" 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

APPENDIX: BAYESIAN REGRESSION METHODS Introduction  

E-Print Network [OSTI]

statistics begins with a model for the joint probability distribution of and y, p(,y). may be a single to VI derive from Bayesian statistics. Bayesian methods are less familiar than some other statistical variables (Gelman et al. 1995). Bayesian methods can be used for any probability distribution. The methods

142

Excitation Methods for Bridge Structures  

SciTech Connect (OSTI)

This paper summarizes the various methods that have been used to excited bridge structures during dynamic testing. The excitation methods fall into the general categories of ambient excitation methods and measured-input excitation methods. During ambient excitation the input to the bridge is not directly measured. In contrast, as the category label implies, measured-input excitations are usually applied at a single location where the force input to the structure can be monitored. Issues associated with using these various types of measurements are discussed along with a general description of the various excitation methods.

Farrar, C.R.; Duffy, T.A.; Cornwell, P.J.; Doebling, S.W.

1999-02-08T23:59:59.000Z

143

Method of making alkyl esters  

DOE Patents [OSTI]

Methods of making alkyl esters are described herein. The methods are capable of using raw, unprocessed, low-cost feedstocks and waste grease. Generally, the method involves converting a glyceride source to a fatty acid composition and esterifying the fatty acid composition to make alkyl esters. In an embodiment, a method of making alkyl esters comprises providing a glyceride source. The method further comprises converting the glyceride source to a fatty acid composition comprising free fatty acids and less than about 1% glyceride by mass. Moreover, the method comprises esterifying the fatty acid composition in the presence of a solid acid catalyst at a temperature ranging firm about 70.degree. C. to about 120.degree. C. to produce alkyl esters, such that at least 85% of the free fatty acids are converted to alkyl esters. The method also incorporates the use of packed bed reactors for glyceride conversion and/or fatty acid esterification to make alkyl esters.

Elliott, Brian (Wheat Ridge, CO)

2010-09-14T23:59:59.000Z

144

Rapid and Robust Detection Methods for Poison and Microbial Contamination  

E-Print Network [OSTI]

Real-time on-site monitoring of analytes is currently in high demand for food contamination, water, medicines, and ingestible household products that were never tested appropriately. Here we introduce chemical methods for ...

Lu, Peter J.

145

Numerical Methods in Spontaneous Combustion with the Help of MATLAB  

Science Journals Connector (OSTI)

Spontaneous combustion is a complicated process and its control function is a partial differential equation (PDE) of heat conduction. With the help of initial conditions and boundary conditions, we can get unique solution. The correspondence conditions are called conditions for unique solution. However, analytical solution is only possible for a few conditions. Hereby, with the help of computer, we introduce numerical methods to get numerical solutions. We will introduce both the analytical method and the numerical methods for a certain kind of spontaneous combustion. We will mainly focus on the numerical methods, since it has better competence when solving complex problems. And also to insure the accuracy of the numerical methods, we will contrast it with analytical solution. MATLAB is used as the tool of programme to solve the problem easily.

Quan-bing Luo; You-hua Fu; Dong Liang

2013-01-01T23:59:59.000Z

146

Methods of manipulating stressed epistructures  

DOE Patents [OSTI]

A method of processing an epistructure or processing a semiconductor device including associating a conformal and flexible handle with the epistructure and removing the epistructure and handle as a unit from the parent substrate. The method further includes causing the epistructure and handle unit to conform to a shape that differs from the shape the epistructure otherwise inherently assumes upon removal from the parent substrate. A device prepared according to the disclosed methods.

Wanlass, Mark W

2014-04-08T23:59:59.000Z

147

Scientific Method, Statistical Method, and the Speed of Light.  

E-Print Network [OSTI]

Scientific Method, Statistical Method, and the Speed of Light. R.J. Mackay and R.W. Oldford Working on the speed of light carried out by A.A. Michelson in 1879. Our answer to the second question is negative. To understand this a history on the speed of light up to the time of Michelson's study is presented. The larger

Oldford, R.W.

148

Evaluation of Islanding Detection Methods  

Office of Scientific and Technical Information (OSTI)

shutdown associated with an out-of-frequency condition. Other countries such as Germany and Austria require a specific method based on sudden impedance changes and described...

149

Uniform Methods Project Related Links  

Office of Energy Efficiency and Renewable Energy (EERE)

The websites and publications listed below provide supporting information for theUniform Methods Project and for evaluation, measurement, and verification (EM&V) of energy efficiency programs.

150

About the Uniform Methods Project  

Office of Energy Efficiency and Renewable Energy (EERE)

The Uniform Methods Project is developing measurement and verification protocols for determining energy savings for commonly implemented program measures. This work is being done through...

151

New Methods of Glasshouse Fumigation  

Science Journals Connector (OSTI)

... Hort. Soc.t 74, Pt. 10; 1949). Insecticidal smokes, produced by igniting pyrotechnic mixtures containing DDT, 'Gammexane' or 'Azobenzene', provide a very convenient method, ...

1950-07-22T23:59:59.000Z

152

Algebraic Statistics methods Giovanni Pistone  

E-Print Network [OSTI]

Algebraic Statistics methods for DOE Giovanni Pistone Department of Mathematics Politecnico di Torino, Italy giovanni.pistone@polito.it Eva Riccomagno Department of Mathematics Politecnico di Torino

Ceragioli, Francesca

153

Method of producing synthetic pitch  

DOE Patents [OSTI]

Embodiments of a method are described for modifying pitches, oils, tars, and binders by using these materials as solvents to extract organic chemicals from coal.

Kennel, Elliot B. (Morgantown, WV); Stansberry, Peter G. (North Olmsted, OH); Stiller, Alfred H. (Morgantown, WV); Zondlo, John W. (Albright, WV)

2012-07-24T23:59:59.000Z

154

The Uniform Methods Project: Methods for Determining Energy Efficiency  

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

Electricity Policy Coordination and Implementation » Electricity Policy Coordination and Implementation » State and Regional Policy Assistance » The Uniform Methods Project: Methods for Determining Energy Efficiency Savings for Specific Measures The Uniform Methods Project: Methods for Determining Energy Efficiency Savings for Specific Measures In April 2013 the National Renewable Energy Laboratory (NREL) published the first set of protocols for determining energy savings from energy efficiency measures and programs. Funded by the Office of Electricity Delivery and Energy Reliability and the Office of Energy Efficiency and Renewable Energy, the developed protocols provide a straightforward method for evaluating gross energy savings for each of the most common residential and commercial measures and programs offered by ratepayer-funded energy

155

Method of producing polyalkylated oligoalkylenepolyamines  

DOE Patents [OSTI]

A method of preparing polyalkylated oligoalkylenepolyamines is provided. The method includes contacting oligoalkylenepolyamine with a reagent composition comprising (a) alkyl bromide and/or alkyl chloride; (b) a basic agent; and (c) iodide salt. The alkylation reaction may be carried out in a polar, aprotic organic solvent.

Elangovan, Arumugasamy

2014-02-25T23:59:59.000Z

156

Challenging Proteins Principles and Methods  

E-Print Network [OSTI]

.............................................................................................................................................................12 Small-scale expression screening of histidine-tagged membrane proteins from E. coli lysates Gel Filtration Principles and Methods 18-1022-18 Recombinant Protein Purification Handbook Principles and Methods 18-1142-75 Protein Purification Handbook 18-1132-29 Hydrophobic Interaction and Reversed Phase

Jacobsen, Steve

157

Drilling Methods | Open Energy Information  

Open Energy Info (EERE)

Drilling Methods Drilling Methods Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Drilling Methods Details Activities (0) Areas (0) Regions (0) NEPA(5) Exploration Technique Information Exploration Group: Exploration Sub Group: None Parent Exploration Technique: Information Provided by Technique Lithology: Stratigraphic/Structural: Hydrological: Thermal: Dictionary.png Drilling Methods: No definition has been provided for this term. Add a Definition References No exploration activities found. Document # Analysis Type Applicant Geothermal Area Lead Agency District Office Field Office Mineral Manager Surface Manager Development Phase(s) Techniques CA-170-02-15 EA Mammoth Pacific Long Valley Caldera Geothermal Area BLM BLM Central California District Office BLM Bishop Field Office BLM Geothermal/Exploration Drilling Methods

158

Gravity Methods | Open Energy Information  

Open Energy Info (EERE)

Gravity Methods Gravity Methods Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Gravity Methods Details Activities (0) Areas (0) Regions (0) NEPA(3) Exploration Technique Information Exploration Group: Geophysical Techniques Exploration Sub Group: Gravity Techniques Parent Exploration Technique: Information Provided by Technique Lithology: Stratigraphic/Structural: Hydrological: Thermal: Dictionary.png Gravity Methods: No definition has been provided for this term. Add a Definition References No exploration activities found. Document # Analysis Type Applicant Geothermal Area Lead Agency District Office Field Office Mineral Manager Surface Manager Development Phase(s) Techniques NVN-084630 CU Vulcan Energy Patua Geothermal Area BLM Nevada State Office BLM Winnemucca District Office BLM Humboldt River Field Office BLM BLM Geothermal/Exploration Gravity Methods

159

Requirements for Hypermedia Development Methods: A Survey of Outstanding Methods  

Science Journals Connector (OSTI)

The aim of this paper is to present a framework of requirements to survey design methods for hypermedia systems. Such requirements are taken from software engineering as well as from hypermedia engineering fields. Finally, these requirements are applied ...

Susana Montero; Paloma Daz; Ignacio Aedo

2002-05-01T23:59:59.000Z

160

Transuranic waste characterization sampling and analysis methods manual  

SciTech Connect (OSTI)

The Transuranic Waste Characterization Sampling and Analysis Methods Manual (Methods Manual) provides a unified source of information on the sampling and analytical techniques that enable Department of Energy (DOE) facilities to comply with the requirements established in the current revision of the Transuranic Waste Characterization Quality Assurance Program Plan (QAPP) for the Waste Isolation Pilot Plant (WIPP) Transuranic (TRU) Waste Characterization Program (the Program). This Methods Manual includes all of the testing, sampling, and analytical methodologies accepted by DOE for use in implementing the Program requirements specified in the QAPP.

NONE

1995-05-01T23:59:59.000Z

Note: This page contains sample records for the topic "method analytical method" 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

Lattice Boltzmann interface capturing method for incompressible flows  

Science Journals Connector (OSTI)

A lattice Boltzmann interface capturing method for incompressible flows is proposed in this paper. The interface is naturally captured by minimizing the free energy functional. It is easily implemented and does not require interface reconstruction as required by most of the traditional interface tracking methods such as the volume of fluid method. Moreover, the method does not require the isotropic property of the fourth order lattice tensor as do other lattice Boltzmann methods. Thus the D2Q5 (D2 means two dimensional, Q5 means five velocity model) discrete velocity model is applied in the method. The interface profile along the flat interface and coexistence curve can be given analytically. The proposed method is validated for some test cases, and compared to the volume of fluid and level set methods. Numerical results show that the present method performs very well and can generate very sharp interfaces.

H. W. Zheng; C. Shu; Y. T. Chew

2005-11-11T23:59:59.000Z

162

Method of passivating semiconductor surfaces  

DOE Patents [OSTI]

A method of passivating Group III-V or II-VI semiconductor compound surfaces. The method includes selecting a passivating material having a lattice constant substantially mismatched to the lattice constant of the semiconductor compound. The passivating material is then grown as an ultrathin layer of passivating material on the surface of the Group III-V or II-VI semiconductor compound. The passivating material is grown to a thickness sufficient to maintain a coherent interface between the ultrathin passivating material and the semiconductor compound. In addition, a device formed from such method is also disclosed.

Wanlass, Mark W. (Golden, CO)

1990-01-01T23:59:59.000Z

163

Background field method as a canonical transformation  

Science Journals Connector (OSTI)

We construct explicitly the canonical transformation which controls the full dependence (local and nonlocal) of the vertex functional of a Yang-Mills theory on a background field. After showing that the canonical transformation found is nothing but a direct field-theoretic generalization of the Lie transform of classical analytical mechanics, we comment on a number of possible applications, and, in particular, the nonperturbative implementation of the background field method on the lattice, the background field formulation of the two-particle irreducible formalism, and, finally, the formulation of the Schwinger-Dyson series in the presence of topologically nontrivial configurations.

D. Binosi and A. Quadri

2012-06-21T23:59:59.000Z

164

Methods for predicting wax precipitation and deposition  

SciTech Connect (OSTI)

Removal of wax from wells and flowlines can account for significant additional operating costs. To evaluate these potential costs, the operating conditions that allow waxes to precipitate in the wellbore must be identified, and deposition rates must be estimated to determine the costs associated with removal of wax deposits. Presented in this paper are laboratory and analytic methods that can be used to estimate both the critical operating conditions and the deposition rates. The laboratory tests and analysis presented may be used to characterize any type of oil.

Weingarten, J.S.; Euchner, J.A.

1988-02-01T23:59:59.000Z

165

The Method of Boundary Perturbation,  

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

Method of Boundary Perturbation, Method of Boundary Perturbation, and Its Application to Wakefield Calculationst Weiren Chou+ Advanced Photon Source Argonne National Laboratory 9700 S. Cass Ave. Argonne, IL 60439 USA Spring Meeting of The American Physical Society Division of Physics of Beams Washington, D.C. April 16-19, 1990 tWork supported by the U.S. Department of Energy, Office of Basic Energy Sciences, under Contract W-31-109-ENG-38. tPresent address: SSC Laboratory, Accelerator Division, MS-I046, 2550 Beckleymeade Ave., Dallas, TX 75237, USA. LS-/~ Method of Boundary Perturbation, and Its Application to Wakefield Calculations ABSTRACT The boundary perturbation method, suggested by Zhang and, independently, by Chatard-Moulin, Cooper, and their colleagues, is employed to the wakefield cal-

166

Magnetotelluric Methods | Open Energy Information  

Open Energy Info (EERE)

Magnetotelluric Methods Magnetotelluric Methods Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Magnetotelluric Methods Details Activities (0) Areas (0) Regions (0) NEPA(3) Exploration Technique Information Exploration Group: Geophysical Techniques Exploration Sub Group: Electrical Techniques Parent Exploration Technique: Information Provided by Technique Lithology: Stratigraphic/Structural: Hydrological: Thermal: Dictionary.png Magnetotelluric Methods: No definition has been provided for this term. Add a Definition References No exploration activities found. Document # Analysis Type Applicant Geothermal Area Lead Agency District Office Field Office Mineral Manager Surface Manager Development Phase(s) Techniques DOI-BLM-NV-C010-2012-0070-CX CX US Navy Geothermal Program Office Dixie Valley Geothermal Area BLM BLM Carson City District Office BLM Stillwater Field Office BLM BLM Geothermal/Exploration Reflection Survey

167

ALTERNATING DIRECTION METHODS FOR SPARSE ...  

E-Print Network [OSTI]

Since zero entries in the inverse covariance matrix correspond to the conditional ..... All the codes of the ADM approach were written by Matlab 7.1. .... graphs via chordal embedding, Optimization Methods and Software 23 (4) (2008), pp. 501-.

2009-09-04T23:59:59.000Z

168

Peptides and methods against diabetes  

DOE Patents [OSTI]

This invention relates to methods of preventing or reducing the severity of diabetes. In one embodiment, the method involves administering to the individual a peptide having substantially the sequence of a on-conserved region sequence of a T cell receptor present on the surface of T cells mediating diabetes or a fragment thereof, wherein the peptide or fragment is capable of causing an effect on the immune system to regulate the T cells. In particular, the T cell receptor has the V.beta. regional V.beta.6 or V.beta.14. In another embodiment, the method involves gene therapy. The invention also relates to methods of diagnosing diabetes by determining the presence of diabetes predominant T cell receptors.

Albertini, Richard J. (Underhill Center, VT); Falta, Michael T. (Hinesburg, VT)

2000-01-01T23:59:59.000Z

169

Method of modifying a surface  

DOE Patents [OSTI]

The present invention provides a surface modification method that provides beneficial changes in surface properties, can modify a surface to a greater depth than previous methods, and that is suitable for industrial application. The present method comprises applying a thin-film coating to a surface of a substrate, then subjecting the coated surface to an ion beam. The ion beam power pulse heats the coated surface, leading to alloying between the material in the coating and the material of the substrate. Rapid cooling of the alloyed layer after an ion beam pulse can lead to formation of metastable alloys and microstructures not accessible by conventional alloying methods or intense ion beam treatment of the substrate alone.

Renk, Timothy J. (Albuquerque, NM); Sorensen, Neil R. (Albuquerque, NM); Senft, Donna Cowell (Albuquerque, NM); Buchheit, Jr., Rudolph G. (Columbus, OH); Thompson, Michael O. (Ithaca, NY); Grabowski, Kenneth S. (Alexandria, VA)

2000-01-01T23:59:59.000Z

170

Reduced shedding regenerator and method  

DOE Patents [OSTI]

A reduced shedding regenerator and method are disclosed with regenerator surfaces to minimize shedding of particles from the regenerator thereby alleviating a source of potential damage and malfunction of a thermal regenerative machine using the regenerator.

Qiu, Songgang (Richland, WA); Augenblick, John E. (Richland, WA); Erbeznik, Raymond M. (Kennewick, WA)

2007-05-22T23:59:59.000Z

171

The Modified Embedded Atom Method  

SciTech Connect (OSTI)

Recent modifications have been made to generalize the Embedded Atom Method (EAM) to describe bonding in diverse materials. By including angular dependence of the electron density in an empirical way, the Modified Embedded Atom Method (MEAM) has been able to reproduce the basic energetic and structural properties of 45 elements. This method is ideally suited for examining the interfacial behavior of dissimilar materials. This paper explains in detail the derivation of the method, shows how the parameters of the MEAM are determined directly from experiment or first principles calculations, and examines the quality of the reproduction of the database. Materials with fcc, bcc, hcp, and diamond cubic crystal structure are discussed. A few simple examples of the application of the MEAM to surfaces and interfaces are presented. Calculations of pullout of a SiC fiber in a diamond matrix as a function of applied stress show non-uniform deformation of the fiber.

Baskes, M.I.

1994-08-01T23:59:59.000Z

172

Method for controlling powertrain pumps  

DOE Patents [OSTI]

A method of controlling a pump supplying a fluid to a transmission includes sensing a requested power and an excess power for a powertrain. The requested power substantially meets the needs of the powertrain, while the excess power is not part of the requested power. The method includes sensing a triggering condition in response to the ability to convert the excess power into heat in the transmission, and determining that an operating temperature of the transmission is below a maximum. The method also includes determining a calibrated baseline and a dissipation command for the pump. The calibrated baseline command is configured to supply the fluid based upon the requested power, and the dissipation command is configured to supply additional fluid and consume the excess power with the pump. The method operates the pump at a combined command, which is equal to the calibrated baseline command plus the dissipation command.

Sime, Karl Andrew; Spohn, Brian L; Demirovic, Besim; Martini, Ryan D; Miller, Jean Marie

2013-10-22T23:59:59.000Z

173

Method of Dehalogenation using Diamonds  

SciTech Connect (OSTI)

A method for preparing olefins and halogenated olefins is provided comprising contacting halogenated compounds with diamonds for a sufficient time and at a sufficient temperature to convert the halogenated compounds to olefins and halogenated olefins via elimination reactions.

Farcasiu, Malvina; Kaufman, Phillip B.; Ladner, Edward P.; Anderson, Richard R.

1999-02-26T23:59:59.000Z

174

Hedge Algorithm and Subgradient Methods  

E-Print Network [OSTI]

can be interpreted as an approximation of the utility function over gains and losses used ... fixing the step-size, from a simple approximate line-search method to...

2010-10-05T23:59:59.000Z

175

Atomistic methods in fluid simulation  

Science Journals Connector (OSTI)

...easily describable by traditional methods, as ICF involves a complex coupling between fluid instabilities and combustion processes at very small length and times scales. One contribution of 13 to a Theme Issue Turbulent mixing and beyond . Figure...

2010-01-01T23:59:59.000Z

176

Method for determining gene knockouts  

DOE Patents [OSTI]

A method for determining candidates for gene deletions and additions using a model of a metabolic network associated with an organism, the model includes a plurality of metabolic reactions defining metabolite relationships, the method includes selecting a bioengineering objective for the organism, selecting at least one cellular objective, forming an optimization problem that couples the at least one cellular objective with the bioengineering objective, and solving the optimization problem to yield at least one candidate.

Maranas, Costa D; Burgard, Anthony R; Pharkya, Priti

2013-06-04T23:59:59.000Z

177

Method to blend separator powders  

DOE Patents [OSTI]

A method for making a blended powder mixture, whereby two or more powders are mixed in a container with a liquid selected from nitrogen or short-chain alcohols, where at least one of the powders has an angle of repose greater than approximately 50 degrees. The method is useful in preparing blended powders of Li halides and MgO for use in the preparation of thermal battery separators.

Guidotti, Ronald A. (Albuquerque, NM); Andazola, Arthur H. (Albuquerque, NM); Reinhardt, Frederick W. (Albuquerque, NM)

2007-12-04T23:59:59.000Z

178

Method for grinding precision components  

SciTech Connect (OSTI)

A method for precision cylindrical grinding of hard brittle materials, such as ceramics or glass and composites comprising ceramics or glass, provides material removal rates as high as 19--380 cm{sup 3}/min/cm. The abrasive tools used in the method comprise a strong, light weight wheel core bonded to a continuous rim of abrasive segments containing superabrasive grain in a dense metal bond matrix.

Ramanath, S.; Kuo, S.Y.; Williston, W.H.; Buljan, S.T.

2000-02-01T23:59:59.000Z

179

Bayesian method for global optimization  

Science Journals Connector (OSTI)

We introduce a Bayesian approach for obtaining the global optimum of multimodal functions. The set of observed minima of a multimodal function is viewed as a sample from a multinomial distribution, whose cells correspond to the basins of attraction of the local optima. We then derive the posterior distribution of the number of local optima. This posterior information is obtained from a Bayesian analysis and is used to construct a stopping criterion for a sequential random search method which finds the optimal tradeoff between reliability and computational effort. The computational complexity of this global optimization method is a strong function of the total number of local optima and a weak function of the dimensions of the configuration space. Application to four classical problems from the global optimization literature, a bifunctional catalytic reactor problem, and the conformation problem of Lennard-Jones microclusters is demonstrated. Comparisons with the Bayesian method of Boender and Rinooy Kan [Math. Program. 37, 59 (1987)] and the simulated annealing method of Dekkers and Aarts [Math. Program. 50, 367 (1991)] are provided and, in each case, the computational complexity of our method is shown to be smaller than that of these methods.

Prasana K. Venkatesh; Morrel H. Cohen; Robert W. Carr; Anthony M. Dean

1997-05-01T23:59:59.000Z

180

Method of Synthesis of Proton Conducting Materials  

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

Method of Synthesis of Proton Conducting Materials Method of Synthesis of Proton Conducting Materials A method of producing a proton conducting material. Available for thumbnail of...

Note: This page contains sample records for the topic "method analytical method" 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

Synthesis of Multipole Acoustic Logging Measurements Using the Generalized Reflection/Transmission Matrices Method  

E-Print Network [OSTI]

Synthesis of Multipole Acoustic Logging Measurements Using the Generalized Reflection analytical method that has been used in multipole waveform synthesis for radially multilayered formations

Torres-Verdín, Carlos

182

11.220 Quantitative Reasoning and Statistical Method for Planning I, Spring 2006  

E-Print Network [OSTI]

This course develops logical, empirically based arguments using statistical techniques and analytic methods. It covers elementary statistics, probability, and other types of quantitative reasoning useful for description, ...

Zegras, P. Christopher

183

DOE methods for evaluating environmental and waste management samples  

SciTech Connect (OSTI)

DOE Methods for Evaluating Environmental and Waste Management Samples (DOE Methods) is a resource intended to support sampling and analytical activities for the evaluation of environmental and waste management samples from U.S. Department of Energy (DOE) sites. DOE Methods is the result of extensive cooperation from all DOE analytical laboratories. All of these laboratories have contributed key information and provided technical reviews as well as significant moral support leading to the success of this document. DOE Methods is designed to encompass methods for collecting representative samples and for determining the radioisotope activity and organic and inorganic composition of a sample. These determinations will aid in defining the type and breadth of contamination and thus determine the extent of environmental restoration or waste management actions needed, as defined by the DOE, the U.S. Environmental Protection Agency, or others. The development of DOE Methods is supported by the Analytical Services Division of DOE. Unique methods or methods consolidated from similar procedures in the DOE Procedures Database are selected for potential inclusion in this document. Initial selection is based largely on DOE needs and procedure applicability and completeness. Methods appearing in this document are one of two types, {open_quotes}Draft{close_quotes} or {open_quotes}Verified{close_quotes}. {open_quotes}Draft{close_quotes} methods that have been reviewed internally and show potential for eventual verification are included in this document, but they have not been reviewed externally, and their precision and bias may not be known. {open_quotes}Verified{close_quotes} methods in DOE Methods have been reviewed by volunteers from various DOE sites and private corporations. These methods have delineated measures of precision and accuracy.

Goheen, S.C.; McCulloch, M.; Thomas, B.L.; Riley, R.G.; Sklarew, D.S.; Mong, G.M.; Fadeff, S.K. [eds.

1994-10-01T23:59:59.000Z

184

Comparison of homotopy analysis method and homotopy perturbation method  

E-Print Network [OSTI]

equation Songxin Liang , David J. Jeffrey Department of Applied Mathematics, University of Western Ontario an evolution equation used as the second example in a recent paper by Ganji et al (2007). It is found and t except t = 0. It is also found that the solution given by the variational iteration method (VIM

Jeffrey, David

185

Seismic Fracture Characterization Methods for Enhanced Geothermal...  

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

Seismic Fracture Characterization Methods for Enhanced Geothermal Systems Seismic Fracture Characterization Methods for Enhanced Geothermal Systems Project objective: Make Seismic...

186

Seismic Fracture Characterization Methods for Enhanced Geothermal...  

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

Seismic Fracture Characterization Methods for Enhanced Geothermal Systems; 2010 Geothermal Technology Program Peer Review Report Seismic Fracture Characterization Methods for...

187

Robotic follow system and method  

SciTech Connect (OSTI)

Robot platforms, methods, and computer media are disclosed. The robot platform includes perceptors, locomotors, and a system controller, which executes instructions for a robot to follow a target in its environment. The method includes receiving a target bearing and sensing whether the robot is blocked front. If the robot is blocked in front, then the robot's motion is adjusted to avoid the nearest obstacle in front. If the robot is not blocked in front, then the method senses whether the robot is blocked toward the target bearing and if so, sets the rotational direction opposite from the target bearing, and adjusts the rotational velocity and translational velocity. If the robot is not blocked toward the target bearing, then the rotational velocity is adjusted proportional to an angle of the target bearing and the translational velocity is adjusted proportional to a distance to the nearest obstacle in front.

Bruemmer, David J [Idaho Falls, ID; Anderson, Matthew O [Idaho Falls, ID

2007-05-01T23:59:59.000Z

188

Deflation Methods in Fermion Inverters  

E-Print Network [OSTI]

I will review recent developments in matrix deflation methods, by Ronald Morgan/Walter Wilcox, Andreas Stathopoulos/Konstantinos Orginos, and Martin L\\"uscher, with application to lattice QCD fermion inversion. I will begin with a short review of deflation-related work in the field. The Morgan/Wilcox algorithms using GMRES and BiCGStab for deflation will be described. Typical results for quenched (Wilson and twisted mass) and dynamical configurations (CP-PACS and ETMC) will be displayed and discussed. I will outline how inclusion of multiple right-hand sides and multiple shifts can be accommodated within versions of these methods. I will also review deflation methods based on Conjugate Gradient introduced by Stathopoulos and Orginos for hermitian systems with multiple right-hand sides as well as L\\"uscher's non-hermitian domain decomposition algorithm using Generalized Conjugate Residual.}

Walter Wilcox

2007-10-23T23:59:59.000Z

189

Methods of producing transportation fuel  

DOE Patents [OSTI]

Systems, methods, and heaters for treating a subsurface formation are described herein. At least one method for producing transportation fuel is described herein. The method for producing transportation fuel may include providing formation fluid having a boiling range distribution between -5.degree. C. and 350.degree. C. from a subsurface in situ heat treatment process to a subsurface treatment facility. A liquid stream may be separated from the formation fluid. The separated liquid stream may be hydrotreated and then distilled to produce a distilled stream having a boiling range distribution between 150.degree. C. and 350.degree. C. The distilled liquid stream may be combined with one or more additives to produce transportation fuel.

Nair, Vijay (Katy, TX); Roes, Augustinus Wilhelmus Maria (Houston, TX); Cherrillo, Ralph Anthony (Houston, TX); Bauldreay, Joanna M. (Chester, GB)

2011-12-27T23:59:59.000Z

190

Green methods for hydrogen production  

Science Journals Connector (OSTI)

This paper discusses environmentally benign and sustainable, as green, methods for hydrogen production and categorizes them based on the driving sources and applications. Some potential sources are electrical, thermal, biochemical, photonic, electro-thermal, photo-thermal, photo-electric, photo-biochemical, and thermal-biochemical. Such forms of energy can be derived from renewable sources, nuclear energy and from energy recovery processes for hydrogen production purposes. These processes are analyzed and assessed for comparison purposes. Various case studies are presented to highlight the importance of green hydrogen production methods and systems for practical applications.

Ibrahim Dincer

2012-01-01T23:59:59.000Z

191

New methodical developments for GRANIT  

SciTech Connect (OSTI)

New methodical developments for the GRANIT spectrometer address further improvements of the critical parameters of this experimental installation, as well as its applications to new fields of research. Keeping in mind an extremely small fraction of ultra cold neutrons (UCN) that could be bound in gravitational quantum states, we look for methods to increase statistics due to: developing UCN sources with maximum phase-space density, counting simultaneously a large fraction of neutrons using position-sensitive detectors, and decreasing detector backgrounds. Also we explore an eventual application of the GRANIT spectrometer beyond the scope of its initial goals, for instance, for reflectometry with UCN.

Baessler, Stefan [ORNL; Nesvizhevsky, V. [ Inst Max Von Laue Paul Langevin, F-38042 Grenoble 9, France; Toperverg, B [Ruhr University, Bochum, Germany; Zhernenkov, K. [Ruhr University, Bochum, Germany; Gagarski, A [Petersburg Nuclear Physics Institute, Gatchina, Russia; Lychagin, E [Joint Institute for Nuclear Research, Dubna, Russia; Muzychka, A [Joint Institute for Nuclear Research, Dubna, Russia; Strelkov, A [Joint Institute for Nuclear Research, Dubna, Russia; Mietke, A [Technische Universitat Dresden

2011-01-01T23:59:59.000Z

192

Combustion synthesis method and products  

DOE Patents [OSTI]

Disclosed is a method of producing dense refractory products, comprising: (a) obtaining a quantity of exoergic material in powder form capable of sustaining a combustion synthesis reaction; (b) removing absorbed water vapor therefrom; (c) cold-pressing said material into a formed body; (d) plasma spraying said formed body with a molten exoergic material to form a coat thereon; and (e) igniting said exoergic coated formed body under an inert gas atmosphere and pressure to produce self-sustained combustion synthesis. Also disclosed are products produced by the method.

Holt, J.B.; Kelly, M.

1993-03-30T23:59:59.000Z

193

Combustion synthesis method and products  

DOE Patents [OSTI]

Disclosed is a method of producing dense refractory products, comprising: (a) obtaining a quantity of exoergic material in powder form capable of sustaining a combustion synthesis reaction; (b) removing absorbed water vapor therefrom; (c) cold-pressing said material into a formed body; (d) plasma spraying said formed body with a molten exoergic material to form a coat thereon; and (e) igniting said exoergic coated formed body under an inert gas atmosphere and pressure to produce self-sustained combustion synthesis. Also disclosed are products produced by the method.

Holt, J. Birch (San Jose, CA); Kelly, Michael (West Alexandria, OH)

1993-01-01T23:59:59.000Z

194

Determination of Asphaltenes in Crude Oil and Petroleum Products by the on Column Precipitation Method  

Science Journals Connector (OSTI)

Determination of Asphaltenes in Crude Oil and Petroleum Products by the on Column Precipitation Method ... An improved analytical method for the determination of asphaltene content in crude oils and petroleum products was developed. ... Composition of heavy petroleums. ...

Estrella Rogel; Cesar Ovalles; Michael E. Moir; John F. Schabron

2009-08-14T23:59:59.000Z

195

A Video Semantic Analysis Method Based on Kernel Discriminative Sparse Representation and Weighted KNN  

Science Journals Connector (OSTI)

......Intelligence, Machine Learning and Data Analytics A Video Semantic Analysis Method Based on Kernel Discriminative...China Handling editor: Zhangbing Zhou To improve the video semantic analysis for video surveillance, a new video semantic analysis method......

Yongzhao Zhan; Shan Dai; Qirong Mao; Lu Liu; Wei Sheng

2014-11-01T23:59:59.000Z

196

Reformulated diesel fuel and method  

DOE Patents [OSTI]

A method for mathematically identifying at least one diesel fuel suitable for combustion in an automotive diesel engine with significantly reduced emissions and producible from known petroleum blendstocks using known refining processes, including the use of cetane additives (ignition improvers) and oxygenated compounds.

McAdams, Hiramie T [Carrollton, IL; Crawford, Robert W [Tucson, AZ; Hadder, Gerald R [Oak Ridge, TN; McNutt, Barry D [Arlington, VA

2006-08-22T23:59:59.000Z

197

Heat reclaiming method and apparatus  

DOE Patents [OSTI]

Method and apparatus to extract heat by transferring heat from hot compressed refrigerant to a coolant, such as water, without exceeding preselected temperatures in the coolant and avoiding boiling in a water system by removing the coolant from direct or indirect contact with the hot refrigerant.

Jardine, Douglas M. (Colorado Springs, CO)

1984-01-01T23:59:59.000Z

198

Development Methods for Web Services  

E-Print Network [OSTI]

Development Methods for Web Services Jakub Walaszczyk LYNGBY 2004 MSc THESIS NR. 52/2004 IMM #12.D. The project was focused in the area of Web Services. The final result was a successful implementation: a conceptual part, requiring research into the areas of Web Services and a practical part, involving

199

Professional Ethics, System Design Methods  

E-Print Network [OSTI]

Professional Ethics, System Design Methods and Geospatial Data Quality #12;Objectives #12;Geospatial Data Uncertainty and Ethics #12;Geospatial Data Uncertainty and Ethics #12;Geospatial Data Uncertainty and Ethics #12;Geospatial Data Uncertainty and Ethics #12;Geospatial Data Uncertainty and Ethics

Wright, Dawn Jeannine

200

Method for synthesizing carbon nanotubes  

DOE Patents [OSTI]

A method for preparing a precursor solution for synthesis of carbon nanomaterials, where a polar solvent is added to at least one block copolymer and at least one carbohydrate compound, and the precursor solution is processed using a self-assembly process and subsequent heating to form nanoporous carbon films, porous carbon nanotubes, and porous carbon nanoparticles.

Fan, Hongyou

2012-09-04T23:59:59.000Z

Note: This page contains sample records for the topic "method analytical method" 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

Additive manufacturing method of producing  

E-Print Network [OSTI]

Additive manufacturing method of producing silver or copper tracks on polyimide film Problem/stripping) using an additive process support by a novel bio- degradable photo-initiator package. technology. Building on previous work by Hoyd- Gigg Ng et al. [1,2], Heriot-Watt has developed an additive film

Painter, Kevin

202

Method-level bug prediction  

Science Journals Connector (OSTI)

Researchers proposed a wide range of approaches to build effective bug prediction models that take into account multiple aspects of the software development process. Such models achieved good prediction performance, guiding developers towards those parts ... Keywords: code metrics, fine-grained source code changes, method-level bug prediction

Emanuel Giger; Marco D'Ambros; Martin Pinzger; Harald C. Gall

2012-09-01T23:59:59.000Z

203

Grant Writing Using Qualitative Methods  

E-Print Network [OSTI]

Grant Writing Using Qualitative Methods Michael L. Hecht Distinguished Professor Communication Arts and Sciences Crime, Law, and Justice #12; Section 1: Grants Overview Section 2: Grant Criteria Section 3: Grant Writing Section 4: Grant Reviews & Revision Get Funded! (OK, write proposal) Workshop Outline

Omiecinski, Curtis

204

Method for producing a borohydride  

DOE Patents [OSTI]

A method for producing a borohydride is described and which includes the steps of providing a source of borate; providing a material which chemically reduces the source of the borate to produce a borohydride; and reacting the source of borate and the material by supplying heat at a temperature which substantially effects the production of the borohydride.

Kong, Peter C. (Idaho Falls, ID)

2008-09-02T23:59:59.000Z

205

GGNB Methods Courses 2012 -Overview Sep 2012 -Feb 2013 Short Methods Courses & Method Seminars; Extended Methods Course  

E-Print Network [OSTI]

fluorescence complementation) in yeast 1.0 Oct 2012 Jahn, Reinhard Chua, John / Binotti, Beyenech / Boyken-protein interactions in RNP complexes 1.0 23-25 Jan 2013 Görlich, Dirk Frey, Steffen A 131 Methods in bacterial protein expression and purification 0.5 18 Oct 2012 Görlich, Dirk Frey, Steffen A 132 Purification of recombinant

Gollisch, Tim

206

TRAC methods and models. [PWR  

SciTech Connect (OSTI)

The numerical methods and physical models used in the Transient Reactor Analysis Code (TRAC) versions PD2 and PF1 are discussed. Particular emphasis is placed on TRAC-PF1, the version specifically designed to analyze small-break loss-of-coolant accidents (LOCAs).

Mahaffy, J.H.; Liles, D.R.; Bott, T.F.

1981-01-01T23:59:59.000Z

207

Method of forming ceramic bricks  

DOE Patents [OSTI]

A method for forming free standing ceramic bricks for use as tritium breeder material is disclosed. Aqueous solutions of sodium carbonate and potassium carbonate are mixed with an organic hydrocolloid dispersion and powdered lithium carbonate, spray dried, and ceramic bricks formed by molding in a die and firing.

Poeppel, R.B.; Claar, T.D.; Silkowski, P.

1987-04-22T23:59:59.000Z

208

Method of making monodisperse nanoparticles  

DOE Patents [OSTI]

A method of making particles of either spherical or cylindrical geometry with a characteristic diameter less than 50 nanometers by mixing at least one structure directing agent dissolved in a solvent with at least one amphiphilic block copolymer dissolved in a solvent to make a solution containing particles, where the particles can be subsequently separated and dispersed in a solvent of choice.

Fan, Hongyon; Sun, Zaicheng

2012-10-16T23:59:59.000Z

209

Methods of producing cermet materials and methods of utilizing same  

DOE Patents [OSTI]

Methods of fabricating cermet materials and methods of utilizing the same such as in filtering particulate and gaseous pollutants from internal combustion engines having intermetallic and ceramic phases. The cermet material may be made from a transition metal aluminide phase and an alumina phase. The mixture may be pressed to form a green compact body and then heated in a nitrogen-containing atmosphere so as to melt aluminum particles and form the cermet. Filler materials may be added to increase the porosity or tailor the catalytic properties of the cermet material. Additionally, the cermet material may be reinforced with fibers or screens. The cermet material may also be formed so as to pass an electrical current therethrough to heat the material during use.

Kong, Peter C. (Idaho Falls, ID)

2008-12-30T23:59:59.000Z

210

Transuranic waste characterization sampling and analysis methods manual. Revision 1  

SciTech Connect (OSTI)

This Methods Manual provides a unified source of information on the sampling and analytical techniques that enable Department of Energy (DOE) facilities to comply with the requirements established in the current revision of the Transuranic Waste Characterization Quality Assurance Program Plan (QAPP) for the Waste Isolation Pilot Plant (WIPP) Transuranic (TRU) Waste Characterization Program (the Program) and the WIPP Waste Analysis Plan. This Methods Manual includes all of the testing, sampling, and analytical methodologies accepted by DOE for use in implementing the Program requirements specified in the QAPP and the WIPP Waste Analysis Plan. The procedures in this Methods Manual are comprehensive and detailed and are designed to provide the necessary guidance for the preparation of site-specific procedures. With some analytical methods, such as Gas Chromatography/Mass Spectrometry, the Methods Manual procedures may be used directly. With other methods, such as nondestructive characterization, the Methods Manual provides guidance rather than a step-by-step procedure. Sites must meet all of the specified quality control requirements of the applicable procedure. Each DOE site must document the details of the procedures it will use and demonstrate the efficacy of such procedures to the Manager, National TRU Program Waste Characterization, during Waste Characterization and Certification audits.

Suermann, J.F.

1996-04-01T23:59:59.000Z

211

Artificial Neural Network Methods in Quantum Mechanics  

E-Print Network [OSTI]

In a previous article we have shown how one can employ Artificial Neural Networks (ANNs) in order to solve non-homogeneous ordinary and partial differential equations. In the present work we consider the solution of eigenvalue problems for differential and integrodifferential operators, using ANNs. We start by considering the Schr\\"odinger equation for the Morse potential that has an analytically known solution, to test the accuracy of the method. We then proceed with the Schr\\"odinger and the Dirac equations for a muonic atom, as well as with a non-local Schr\\"odinger integrodifferential equation that models the $n+\\alpha$ system in the framework of the resonating group method. In two dimensions we consider the well studied Henon-Heiles Hamiltonian and in three dimensions the model problem of three coupled anharmonic oscillators. The method in all of the treated cases proved to be highly accurate, robust and efficient. Hence it is a promising tool for tackling problems of higher complexity and dimensionality.

I. E. Lagaris; A. Likas; D. I. Fotiadis

1997-05-15T23:59:59.000Z

212

Preferred methods of analysis for chemical tracers in moderate- and  

Open Energy Info (EERE)

Preferred methods of analysis for chemical tracers in moderate- and Preferred methods of analysis for chemical tracers in moderate- and high-temperature geothermal environments Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Report: Preferred methods of analysis for chemical tracers in moderate- and high-temperature geothermal environments Details Activities (2) Areas (2) Regions (0) Abstract: This report describes the sampling and analytical techniques used for tracer analysis in the Raft River and East Mesa field tests. The collection procedures and sample preservation techniques, analytical methods and possible sources of contamination or error are discussed in detail. Author(s): Kroneman, R. L.; Yorgason, K. R.; Moore, J. N. Published: DOE Information Bridge, 12/1/1984 Document Number: Unavailable DOI: 10.2172/5121460

213

Explosives detection system and method  

DOE Patents [OSTI]

A method of detecting explosives in a vehicle includes providing a first rack on one side of the vehicle, the rack including a neutron generator and a plurality of gamma ray detectors; providing a second rack on another side of the vehicle, the second rack including a neutron generator and a plurality of gamma ray detectors; providing a control system, remote from the first and second racks, coupled to the neutron generators and gamma ray detectors; using the control system, causing the neutron generators to generate neutrons; and performing gamma ray spectroscopy on spectra read by the gamma ray detectors to look for a signature indicative of presence of an explosive. Various apparatus and other methods are also provided.

Reber, Edward L. (Idaho Falls, ID); Jewell, James K. (Idaho Falls, ID); Rohde, Kenneth W. (Idaho Falls, ID); Seabury, Edward H. (Idaho Falls, ID); Blackwood, Larry G. (Idaho Falls, ID); Edwards, Andrew J. (Idaho Falls, ID); Derr, Kurt W. (Idaho Falls, ID)

2007-12-11T23:59:59.000Z

214

Update on pipeline repair methods  

SciTech Connect (OSTI)

A comprehensive review of pipeline repair methods has been recently completed under the sponsorship of the American Gas Association`s, Pipeline Research Committee. This paper is intended to summarize the important results of that review. First and foremost, two relatively new methods of repair are reviewed. One involves the use of a continuous-fiber fiberglass composite material which can be applied as an alternative to a steel sleeve for the reinforcement of nonleaking defects. The second is the use of deposited weld metal to replace metal lost to external corrosion. This latter technique is not new in principle, but recent research has shown how it can be done safely on a pressurized pipeline. The other significant outcome of the comprehensive review was a set of guidelines for using all types of repairs including full-encirclement sleeves and repair clamps. Pipeline operators can use these guidelines to enhance their current repair procedures, or to train new personnel in maintenance techniques.

Kiefner, J.F. [Kiefner and Associates, Inc., Worthington, OH (United States); Bruce, W.A. [Edison Welding Inst., Columbus, OH (United States); Stephens, D.R. [Battelle, Columbus, OH (United States)

1995-12-31T23:59:59.000Z

215

Method for detecting toxic gases  

DOE Patents [OSTI]

A method is disclosed which is capable of detecting low concentrations of a pollutant or other component in air or other gas. This method utilizes a combination of a heating filament having a catalytic surface of a noble metal for exposure to the gas and producing a derivative chemical product from the component. An electrochemical sensor responds to the derivative chemical product for providing a signal indicative of the product. At concentrations in the order of about 1-100 ppm of tetrachloroethylene, neither the heating filament nor the electrochemical sensor is individually capable of sensing the pollutant. In the combination, the heating filament converts the benzyl chloride to one or more derivative chemical products which may be detected by the electrochemical sensor. 6 figures.

Stetter, J.R.; Zaromb, S.; Findlay, M.W. Jr.

1991-10-08T23:59:59.000Z

216

Monte Carlo methods in ICF  

SciTech Connect (OSTI)

Monte Carlo methods appropriate to simulate the transport of x-rays, neutrons, ion and electrons in Inertial Confinement Fusion targets are described and analyzed. The Implicit Monte Carlo method of x-ray transport handles symmetry within indirect drive ICF hohlraums well, but can be improved 50X in efficiency by angular biasing the x-rays towards the fuel capsule. Accurate simulation of thermonuclear burns nd burn diagnostics involves detailed particle source spectra, charged particle ranges, inflight reaction kinematics, corrections for bulk and thermal Doppler effects and variance reduction to obtain adequate statistics for rare events. It is found that the effects of angular Coulomb scattering must be included in models of charged particle transport through heterogeneous materials.

Zimmerman, G.B.

1997-06-24T23:59:59.000Z

217

Method of migrating seismic records  

DOE Patents [OSTI]

The present invention provides a method of migrating seismic records that retains the information in the seismic records and allows migration with significant reductions in computing cost. The present invention comprises phase encoding seismic records and combining the encoded seismic records before migration. Phase encoding can minimize the effect of unwanted cross terms while still allowing significant reductions in the cost to migrate a number of seismic records.

Ober, Curtis C. (Las Lunas, NM); Romero, Louis A. (Albuquerque, NM); Ghiglia, Dennis C. (Longmont, CO)

2000-01-01T23:59:59.000Z

218

Method of installing subsurface barrier  

DOE Patents [OSTI]

Systems, components, and methods relating to subterranean containment barriers. Laterally adjacent tubular casings having male interlock structures and multiple female interlock structures defining recesses for receiving a male interlock structure are used to create subterranean barriers for containing and treating buried waste and its effluents. The multiple female interlock structures enable the barriers to be varied around subsurface objects and to form barrier sidewalls. The barrier may be used for treating and monitoring a zone of interest.

Nickelson, Reva A. (Shelley, ID); Richardson, John G. (Idaho Falls, ID); Kostelnik, Kevin M. (Idaho Falls, ID); Sloan, Paul A. (Rigby, ID)

2007-10-09T23:59:59.000Z

219

Radiation delivery system and method  

DOE Patents [OSTI]

A radiation delivery system and method are described. The system includes a treatment configuration such as a stent, balloon catheter, wire, ribbon, or the like, a portion of which is covered with a gold layer. Chemisorbed to the gold layer is a radiation-emitting self-assembled monolayer or a radiation-emitting polymer. The radiation delivery system is compatible with medical catheter-based technologies to provide a therapeutic dose of radiation to a lesion following an angioplasty procedure.

Sorensen, Scott A. (Overland Park, KS); Robison, Thomas W. (Los Alamos, NM); Taylor, Craig M. V. (Jemez Springs, NM)

2002-01-01T23:59:59.000Z

220

Wafer scale micromachine assembly method  

DOE Patents [OSTI]

A method for fusing together, using diffusion bonding, micromachine subassemblies which are separately fabricated is described. A first and second micromachine subassembly are fabricated on a first and second substrate, respectively. The substrates are positioned so that the upper surfaces of the two micromachine subassemblies face each other and are aligned so that the desired assembly results from their fusion. The upper surfaces are then brought into contact, and the assembly is subjected to conditions suited to the desired diffusion bonding.

Christenson, Todd R. (Albuquerque, NM)

2001-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "method analytical method" 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

Deterministic methods in radiation transport  

SciTech Connect (OSTI)

The Seminar on Deterministic Methods in Radiation Transport was held February 4--5, 1992, in Oak Ridge, Tennessee. Eleven presentations were made and the full papers are published in this report, along with three that were submitted but not given orally. These papers represent a good overview of the state of the art in the deterministic solution of radiation transport problems for a variety of applications of current interest to the Radiation Shielding Information Center user community.

Rice, A.F.; Roussin, R.W. (eds.)

1992-06-01T23:59:59.000Z

222

Vibration damping method and apparatus  

DOE Patents [OSTI]

The present invention provides vibration damping method and apparatus that can damp vibration in more than one direction without requiring disassembly, that can accommodate varying tool dimensions without requiring re-tuning, and that does not interfere with tool tip operations and cooling. The present invention provides active dampening by generating bending moments internal to a structure such as a boring bar to dampen vibration thereof.

Redmond, James M. (Albuquerque, NM); Barney, Patrick S. (Albuquerque, NM); Parker, Gordon G. (Hougton, MI); Smith, David A. (Gainesville, FL)

1999-01-01T23:59:59.000Z

223

Methods of forming hardened surfaces  

DOE Patents [OSTI]

The invention encompasses a method of forming a metallic coating. A metallic glass coating is formed over a metallic substrate. After formation of the coating, at least a portion of the metallic glass can be converted into a crystalline material having a nanocrystalline grain size. The invention also encompasses metallic coatings comprising metallic glass. Additionally, the invention encompasses metallic coatings comprising crystalline metallic material, with at least some of the crystalline metallic material having a nanocrystalline grain size.

Branagan, Daniel J. (Iona, ID)

2004-07-27T23:59:59.000Z

224

Foucault's method in new settings  

E-Print Network [OSTI]

In this paper, we introduce two simple and inexpensive versions of the well-known Foucault method for measuring the speed of light. In a footprint of just 20 cm by 270 cm with readily available laboratory items and a webcam, we obtained $c=296720\\pm3000$ km/s, and $c=302295\\pm3000$ km/s, respectively, both within less than a per cent of the defined value. The experiment also prepares students to work with large amounts of data.

Vrs, Z

2014-01-01T23:59:59.000Z

225

Pulse measurement apparatus and method  

DOE Patents [OSTI]

An embodiment of the invention is directed to a pulse measuring system that measures a characteristic of an input pulse under test, particularly the pulse shape of a single-shot, nano-second duration, high shape-contrast optical or electrical pulse. An exemplary system includes a multi-stage, passive pulse replicator, wherein each successive stage introduces a fixed time delay to the input pulse under test, a repetitively-gated electronic sampling apparatus that acquires the pulse train including an entire waveform of each replica pulse, a processor that temporally aligns the replicated pulses, and an averager that temporally averages the replicated pulses to generate the pulse shape of the pulse under test. An embodiment of the invention is directed to a method for measuring an optical or an electrical pulse shape. The method includes the steps of passively replicating the pulse under test with a known time delay, temporally stacking the pulses, and temporally averaging the stacked pulses. An embodiment of the invention is directed to a method for increasing the dynamic range of a pulse measurement by a repetitively-gated electronic sampling device having a rated dynamic range capability, beyond the rated dynamic range of the sampling device; e.g., enhancing the dynamic range of an oscilloscope. The embodied technique can improve the SNR from about 300:1 to 1000:1. A dynamic range enhancement of four to seven bits may be achieved.

Marciante, John R. (Webster, NY); Donaldson, William R. (Pittsford, NY); Roides, Richard G. (Scottsville, NY)

2011-10-25T23:59:59.000Z

226

Utility Solar Generation Valuation Methods  

SciTech Connect (OSTI)

Tucson Electric Power (TEP) developed, tested and verified the results of a new and appropriate method for accurately evaluating the capacity credit of time variant solar generating sources and reviewed new methods to appropriately and fairly evaluate the value of solar generation to electric utilities. The project also reviewed general integrated approaches for adequately compensating owners of solar generation for their benefits to utilities. However, given the limited funding support and time duration of this project combined with the significant differences between utilities regarding rate structures, solar resource availability and coincidence of solar generation with peak load periods, it is well beyond the scope of this project to develop specific rate, rebate, and interconnection approaches to capture utility benefits for all possible utilities. The project developed computer software based evaluation method models to compare solar generation production data measured in very short term time increments called Sample Intervals over a typical utility Dispatch Cycle during an Evaluation Period against utility system load data. Ten second resolution generation production data from the SGSSS and actual one minute resolution TEP system load data for 2006 and 2007, along with data from the Pennington Street Garage 60 kW DC capacity solar unit installed in downtown Tucson will be applied to the model for testing and verification of the evaluation method. Data was provided by other utilities, but critical time periods of data were missing making results derived from that data inaccurate. The algorithms are based on previous analysis and review of specific 2005 and 2006 SGSSS production data. The model was built, tested and verified by in house TEP personnel. For this phase of the project, TEP communicated with, shared solar production data with and collaborated on the development of solar generation valuation tools with other utilities, including Arizona Public Service, Salt River Project, Xcel and Nevada Power Company as well as the Arizona electric cooperatives. In the second phase of the project, three years of 10 second power output data of the SGSSS was used to evaluate the effectiveness of frequency domain analysis, normal statistical distribution analysis and finally maximum/minimum differential output analysis to test the applicability of these mathematic methods in accurately modeling the output variations produced by clouds passing over the SGSSS array.

Hansen, Thomas N.; Dion, Phillip J.

2009-06-30T23:59:59.000Z

227

Chapter 6, Residential Lighting Evaluation Protocol: The Uniform Methods Project: Methods for Determining Energy Efficiency Savings for Specific Measures  

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

6: Residential Lighting 6: Residential Lighting Evaluation Protocol Scott Dimetrosky, Apex Analytics, LLC Subcontract Report NREL/SR-7A30-53827 April 2013 The Uniform Methods Project: Methods for Determining Energy Efficiency Savings for Specific Measures 6 - 1 Chapter 6 - Table of Contents 1 Measure Description .............................................................................................................. 2 2 Application Conditions of Protocol ....................................................................................... 3 3 Savings Calculations .............................................................................................................. 4 4 Measurement and Verification Plan ....................................................................................... 5

228

Lattice Boltzmann method for adiabatic acoustics  

Science Journals Connector (OSTI)

...Sauro Succi and Stefano Ubertini Lattice Boltzmann method for adiabatic acoustics...Burlington, MA 01803, USA The lattice Boltzmann method (LBM) has been proved...recovery of the full NS equations. lattice Boltzmann method|computational aero-acoustics...

2011-01-01T23:59:59.000Z

229

Modern methods of electronic structure calculations  

Science Journals Connector (OSTI)

In this Chapter we shall consider methods that are currently widely used for calculating the electronic structure of solids. Essentially, there are two groups of methods. The methods of the first group are bui...

Lev Kantorovich

2004-01-01T23:59:59.000Z

230

PHYSICS 9005B: MATHEMATICAL METHODS OF PHYSICS JANUARY 2012  

E-Print Network [OSTI]

PHYSICS 9005B: MATHEMATICAL METHODS OF PHYSICS JANUARY 2012 Instructor: S. R. Valluri, P&A 112, 661 background and interest in Mathematics are encouraged to take this course Course Website: http://publish.uwo.ca/~valluri/physics major topics relevant for physics and engineering will be covered. Complex Variables: Analytic

Lennard, William N.

231

Optimization Methods for Binary Sequences The Merit Factor Problem  

E-Print Network [OSTI]

Optimization Methods for Binary Sequences ­ The Merit Factor Problem Ron Ferguson, Joshua Knauer SFU MOCAA Project Leader: Peter Borwein MITACS 6th Annual Conference, May, 2005 Abstract Optimization of much interest in combinatorial optimization, communications engineering, and analytic number theory

232

Convergence properties of the local defect correction method for parabolic  

E-Print Network [OSTI]

and, for a one-dimensional heat equation, we study its properties analytically. Numerical experiment of adaptive grid techniques. In adaptive grid methods, a fine grid spacing and a relatively small time step requirements are minimized. An adaptive grid technique of particular interest is the Local Defect Correction

Eindhoven, Technische Universiteit

233

Hypervelocity cutting machine and method  

DOE Patents [OSTI]

A method and machine 14 are provided for cutting a workpiece 12 such as concrete. A gun barrel 16 is provided for repetitively loading projectiles 22 therein and is supplied with a pressurized propellant from a storage tank 28. A thermal storage tank 32,32A is disposed between the propellant storage tank 28 and the gun barrel 16 for repetitively receiving and heating propellant charges which are released in the gun barrel 16 for repetitively firing projectiles 22 therefrom toward the workpiece 12. In a preferred embodiment, hypervelocity of the projectiles 22 is obtained for cutting the concrete workpiece 12 by fracturing thereof.

Powell, James R. (Shoreham, NY); Reich, Morris (Queens, NY)

1996-11-12T23:59:59.000Z

234

Hypervelocity cutting machine and method  

DOE Patents [OSTI]

A method and machine are provided for cutting a workpiece such as concrete. A gun barrel is provided for repetitively loading projectiles therein and is supplied with a pressurized propellant from a storage tank. A thermal storage tank is disposed between the propellant storage tank and the gun barrel for repetitively receiving and heating propellant charges which are released in the gun barrel for repetitively firing projectiles therefrom toward the workpiece. In a preferred embodiment, hypervelocity of the projectiles is obtained for cutting the concrete workpiece by fracturing thereof. 10 figs.

Powell, J.R.; Reich, M.

1996-11-12T23:59:59.000Z

235

Method of making permanent magnets  

DOE Patents [OSTI]

A method for making an isotropic permanent magnet comprises atomizing a melt of a rare earth-transition metal alloy (e.g., an Nd--Fe--B alloy enriched in Nd and B) under conditions to produce protectively coated, rapidly solidified, generally spherical alloy particles. Wherein a majority of the particles are produced/size classified within a given size fraction (e.g., 5 to 40 microns diameter) exhibiting optimum as-atomized magnetic properties and subjecting the particles to concurrent elevated temperature and elevated isotropic pressure for a time effective to yield a densified, magnetically isotropic magnet compact having enhanced magnetic properties and mechanical properties. 13 figures.

McCallum, R.W.; Dennis, K.W.; Lograsso, B.K.; Anderson, I.E.

1993-09-07T23:59:59.000Z

236

Strip casting apparatus and method  

DOE Patents [OSTI]

Strip casting apparatus including a molten-metal-holding container and a nozzle to deposit molten metal onto a moving chill drum to directly cast continuous metallic strip. The nozzle body includes a slot bounded between a back and a front lip. The slot width exceeds about 20 times the gap distance between the nozzle and the chill drum surface. Preferably, the slot width exceeds 0.5 inch. This method of strip casting minimizes pressure drop, insuring better metal-to-chill-drum contact which promotes heat transfer and results in a better quality metallic strip. 6 figs.

Williams, R.S.; Baker, D.F.

1988-09-20T23:59:59.000Z

237

Methanol tailgas combustor control method  

DOE Patents [OSTI]

A method for controlling the power and temperature and fuel source of a combustor in a fuel cell apparatus to supply heat to a fuel processor where the combustor has dual fuel inlet streams including a first fuel stream, and a second fuel stream of anode effluent from the fuel cell and reformate from the fuel processor. In all operating modes, an enthalpy balance is determined by regulating the amount of the first and/or second fuel streams and the quantity of the first air flow stream to support fuel processor power requirements.

Hart-Predmore, David J. (Rochester, NY); Pettit, William H. (Rochester, NY)

2002-01-01T23:59:59.000Z

238

Method for measuring surface temperature  

DOE Patents [OSTI]

The present invention relates to a method for measuring a surface temperature using is a fluorescent temperature sensor or optical thermometer. The sensor includes a solution of 1,3-bis(1-pyrenyl)propane within a 1-butyl-1-1-methyl pyrrolidinium bis(trifluoromethylsulfonyl)imide ionic liquid solvent. The 1,3-bis(1-pyrenyl)propane remains unassociated when in the ground state while in solution. When subjected to UV light, an excited state is produced that exists in equilibrium with an excimer. The position of the equilibrium between the two excited states is temperature dependent.

Baker, Gary A. (Los Alamos, NM); Baker, Sheila N. (Los Alamos, NM); McCleskey, T. Mark (Los Alamos, NM)

2009-07-28T23:59:59.000Z

239

Nitrogen fixation method and apparatus  

DOE Patents [OSTI]

A method and apparatus for achieving nitrogen fixation includes a volumetric electric discharge chamber. The volumetric discharge chamber provides an even distribution of an electron beam, and enables the chamber to be maintained at a controlled energy to pressure (E/p) ratio. An E/p ratio of from 5 to 15 kV/atm of O[sub 2]/cm promotes the formation of vibrationally excited N[sub 2]. Atomic oxygen interacts with vibrationally excited N[sub 2] at a much quicker rate than unexcited N[sub 2], greatly improving the rate at which NO is formed. 1 fig.

Chen, H.L.

1983-08-16T23:59:59.000Z

240

Method of coalbed methane production  

SciTech Connect (OSTI)

This patent describes a method for producing coalbed methane from a coal seam containing coalbed methane and penetrated by at least one injection well and at least one producing well. It comprises: injecting an inert gas through the injection well and into the coal seam. The inert gas being a gas that does not react with the coal under conditions of use and that does not significantly adsorb to the coal; and producing a gas from the production well which consists essentially of the inert gas, coalbed methane, or mixtures thereof.

Puri, R.; Stein, M.H.

1989-11-28T23:59:59.000Z

Note: This page contains sample records for the topic "method analytical method" 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

Method of making an electrode  

DOE Patents [OSTI]

Disclosed is a method of coating an electrode on a solid oxygen conductive oxide layer. A coating of particles of an electronic conductor is formed on one surface of the oxide layer and a source of oxygen is applied to the opposite surface of the oxide layer. A metal halide vapor is applied over the electronic conductor and the oxide layer is heated to a temperature sufficient to induce oxygen to diffuse through the oxide layer and react with the metal halide vapor. This results in the growing of a metal oxide coating on the particles of electronic conductor, thereby binding them to the oxide layer.

Isenberg, Arnold O. (Forest Hills Boro, PA)

1986-01-01T23:59:59.000Z

242

Thermal well-test method  

DOE Patents [OSTI]

A well-test method involving injection of hot (or cold) water into a groundwater aquifer, or injecting cold water into a geothermal reservoir is disclosed. By making temperature measurements at various depths in one or more observation wells, certain properties of the aquifer are determined. These properties, not obtainable from conventional well test procedures, include the permeability anisotropy, and layering in the aquifer, and in-situ thermal properties. The temperature measurements at various depths are obtained from thermistors mounted in the observation wells.

Tsang, C.F.; Doughty, C.A.

1984-02-24T23:59:59.000Z

243

Method for discriminative particle selection  

DOE Patents [OSTI]

The invention is a method and means for separating ions or providing an ion beam. The invention generates ions of the isotopes to be separated, and then provides a traveling electric potential hill created by a sequential series of quasi static electric potential hills. By regulating the velocity and potential amplitude of the traveling electric potential hill ionized isotopes are selectively positively or negatively accelerated. Since the ionized isotopes have differing final velocities, the isotopes may be collected separately or used to produce an ion beam of a selected isotope.

Post, Richard F. (Walnut Creek, CA)

1992-01-01T23:59:59.000Z

244

Vibration sensing method and apparatus  

DOE Patents [OSTI]

A method and apparatus for nondestructive evaluation of a structure are disclosed. Resonant audio frequency vibrations are excited in the structure to be evaluated and the vibrations are measured and characterized to obtain information about the structure. The vibrations are measured and characterized by reflecting a laser beam from the vibrating structure and directing a substantial portion of the reflected beam back into the laser device used to produce the beam which device is capable of producing an electric signal containing information about the vibration. 4 figs.

Barna, B.A.

1989-04-25T23:59:59.000Z

245

Vibration sensing method and apparatus  

DOE Patents [OSTI]

A method and apparatus for nondestructive evaluation of a structure is disclosed. Resonant audio frequency vibrations are excited in the structure to be evaluated and the vibrations are measured and characterized to obtain information about the structure. The vibrations are measured and characterized by reflecting a laser beam from the vibrating structure and directing a substantial portion of the reflected beam back into the laser device used to produce the beam which device is capable of producing an electric signal containing information about the vibration.

Barna, Basil A. (Idaho Falls, ID)

1989-04-25T23:59:59.000Z

246

Vibration sensing method and apparatus  

DOE Patents [OSTI]

A method and apparatus for nondestructive evaluation of a structure is disclosed. Resonant audio frequency vibrations are excited in the structure to be evaluated and the vibrations are measured and characterized to obtain information about the structure. The vibrations are measured and characterized by reflecting a laser beam from the vibrating structure and directing a substantial portion of the reflected beam back into the laser device used to produce the beam which device is capable of producing an electric signal containing information about the vibration. 4 figs.

Barna, B.A.

1987-07-07T23:59:59.000Z

247

Hybrid codes: Methods and applications  

SciTech Connect (OSTI)

In this chapter we discuss hybrid'' algorithms used in the study of low frequency electromagnetic phenomena, where one or more ion species are treated kinetically via standard PIC methods used in particle codes and the electrons are treated as a single charge neutralizing massless fluid. Other types of hybrid models are possible, as discussed in Winske and Quest, but hybrid codes with particle ions and massless fluid electrons have become the most common for simulating space plasma physics phenomena in the last decade, as we discuss in this paper.

Winske, D. (Los Alamos National Lab., NM (USA)); Omidi, N. (California Univ., San Diego, La Jolla, CA (USA))

1991-01-01T23:59:59.000Z

248

Method for hot gas conditioning  

DOE Patents [OSTI]

A method for cracking and shifting a synthesis gas by the steps of providing a catalyst consisting essentially of alumina in a reaction zone; contacting the catalyst with a substantially oxygen free mixture of gases comprising water vapor and hydrocarbons having one or more carbon atoms, at a temperature between about 530.degree. C. (1000.degree. F.) to about 980.degree. C. (1800.degree. F.); and whereby the hydrocarbons are cracked to form hydrogen, carbon monoxide and/or carbon dioxide and the hydrogen content of the mixture increases with a corresponding decrease in carbon monoxide, and carbon formation is substantially eliminated.

Paisley, Mark A. (Upper Arlington, OH)

1996-02-27T23:59:59.000Z

249

Site survey method and apparatus  

DOE Patents [OSTI]

The disclosure of the invention is directed to a site survey ground vehicle based apparatus and method for automatically detecting source materials, such as radioactivity, marking the location of the source materials, such as with paint, and mapping the location of the source materials on a site. The apparatus of the invention is also useful for collecting and analyzing samples. The apparatus includes a ground vehicle, detectors mounted at the front of the ground vehicle, and individual detector supports which follow somewhat irregular terrain to allow consistent and accurate detection, and autolocation equipment. 19 figures.

Oldham, J.G.; Spencer, C.R.; Begley, C.L.; Meyer, H.R.

1991-06-18T23:59:59.000Z

250

Test Methods Standing Technical Committee Presentation  

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

Test Methods Standing Technical Committee Test Methods Standing Technical Committee buildingamerica.gov Residential Building Technology Program Building America Test Methods STC BA Stakeholder Meeting Leap Day, 2012 Austin, TX 2 | Building America Test Methods Standing Technical Committee buildingamerica.gov Test Methods STC: Roles Update Field Test: Advanced Test / Audit Methods Key Role: Identify Needs for Field Test Methods & Sensors Targets: Field Performance Measurements: Accurate, Low-Cost & Simple Methods Safety & Durability Checks QA/QC Tools Laboratory Test: Support & Coordination Key Role: Identify Performance Data Gaps for Modeling/Simulation (with Analysis STC) Targets: Ensure Laboratory Data & Models Exist for Comparison to Field Test Avoid Duplication of Efforts

251

Uniform Methods Project Contacts | Department of Energy  

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

Contacts Uniform Methods Project Contacts The primary contacts for the Uniform Methods Project are: U.S. Department of Energy Michael Li Carla Frisch National Renewable Energy...

252

Assessment of Evaluation, Measurement, and Verification Methods...  

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

Assessment of Evaluation, Measurement, and Verification Methods - 2014 BTO Peer Review Assessment of Evaluation, Measurement, and Verification Methods - 2014 BTO Peer Review...

253

Characterizing Test Methods and Emissions Reduction Performance...  

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

Test Methods and Emissions Reduction Performance of In-Use Diesel Retrofit Technologies from the National Clean Diesel Campaign Characterizing Test Methods and Emissions Reduction...

254

Sandia National Laboratories: nanoparticle production method  

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

nanoparticle production method Novel Nanoparticle Production Method Could Lead to Better Lights, Lenses, Solar Cells On July 1, 2014, in Capabilities, CINT, Energy, Energy...

255

Building Energy Optimization Analysis Method (BEopt) - Building...  

Energy Savers [EERE]

Energy Optimization Analysis Method (BEopt) - Building America Top Innovation Building Energy Optimization Analysis Method (BEopt) - Building America Top Innovation House graphic...

256

Methods of conveying fluids and methods of sublimating solid particles  

DOE Patents [OSTI]

A heat exchanger and associated methods for sublimating solid particles therein, for conveying fluids therethrough, or both. The heat exchanger includes a chamber and a porous member having a porous wall having pores in communication with the chamber and with an interior of the porous member. A first fluid is conveyed into the porous member while a second fluid is conveyed into the porous member through the porous wall. The second fluid may form a positive flow boundary layer along the porous wall to reduce or eliminate substantial contact between the first fluid and the interior of the porous wall. The combined first and second fluids are conveyed out of the porous member. Additionally, the first fluid and the second fluid may each be conveyed into the porous member at different temperatures and may exit the porous member at substantially the same temperature.

Turner, Terry D; Wilding, Bruce M

2013-10-01T23:59:59.000Z

257

Qualitative methods for assessing risk  

SciTech Connect (OSTI)

The Department of Energy`s (DOE) non-nuclear facilities generally require only a qualitative accident analysis to assess facility risks in accordance with DOE Order 5481.1B, Safety Analysis and Review System. Achieving a meaningful qualitative assessment of risk necessarily requires the use of suitable non-numerical assessment criteria. Typically, the methods and criteria for assigning facility-specific accident scenarios to the qualitative severity and likelihood classification system in the DOE order requires significant judgment in many applications. Systematic methods for more consistently assigning the total accident scenario frequency and associated consequences are required to substantiate and enhance future risk ranking between various activities at Sandia National Laboratories (SNL). SNL`s Risk Management and National Environmental Policy Act (NEPA) Department has developed an improved methodology for performing qualitative risk assessments in accordance wi the DOE order requirements. Products of this effort are an improved set of qualitative description that permit (1) definition of the severity for both technical and programmatic consequences that may result from a variety of accident scenarios, and (2) qualitative representation of the likelihood of occurrence. These sets of descriptions are intended to facilitate proper application of DOE criteria for assessing facility risks.

Mahn, J.A. [Sandia National Labs., Albuquerque, NM (United States); Hannaman, G.W. [Science Applications International Corp., San Diego, CA (United States); Kryska, P. [Science Applications International Corp., Albuquerque, NM (United States)

1995-04-01T23:59:59.000Z

258

Method of pyrolyzing brown coal  

SciTech Connect (OSTI)

A two-step method and apparatus are disclosed based on the fluidized bed principle, for the production of coke, rich gas and pyrolysis tar, with the object of executing the method in a compact apparatus arrangement, with high energy efficiency and high throughput capacity. This is accomplished by a sequence in which the fine grains removed from the drying vapor mixture are removed from the actual pyrolysis process, and a hot gas, alien to the carbonization, is used as fluidization medium in the pyrolysis reactor, and with a hot gas-high performance separator being used for the dust separation from the pyrolysis gas, with the combustion exhaust gas produced in the combustion chamber being used for the indirect heating of the fluidization medium, for the pre-heating of the gas, which is alien to the carbonization, and for the direct heating in the dryer. The dryer has a double casing in the area of the fluidized bed, and a mixing chamber is arranged directly underneath its initial flow bottom, while the pyrolysis reactor is directly connected to the combustion chamber and the pre-heater.

Michel, W.; Heberlein, I.; Ossowski, M.; Paul, H.; Rummel, A.; Seher, G.

1985-08-06T23:59:59.000Z

259

Infrared emitting device and method  

DOE Patents [OSTI]

An infrared emitting device and method. The infrared emitting device comprises a III-V compound semiconductor substrate upon which are grown a quantum-well active region having a plurality of quantum-well layers formed of a ternary alloy comprising InAsSb sandwiched between barrier layers formed of a ternary alloy having a smaller lattice constant and a larger energy bandgap than the quantum-well layers. The quantum-well layers are preferably compressively strained to increase the threshold energy for Auger recombination; and a method is provided for determining the preferred thickness for the quantum-well layers. Embodiments of the present invention are described having at least one cladding layer to increase the optical and carrier confinement in the active region, and to provide for waveguiding of the light generated within the active region. Examples have been set forth showing embodiments of the present invention as surface- and edge-emitting light emitting diodes (LEDs), an optically-pumped semiconductor laser, and an electrically-injected semiconductor diode laser. The light emission from each of the infrared emitting devices of the present invention is in the midwave infrared region of the spectrum from about 2 to 6 microns.

Kurtz, Steven R. (Albuquerque, NM); Biefeld, Robert M. (Albuquerque, NM); Dawson, L. Ralph (Albuquerque, NM); Howard, Arnold J. (Albuquerque, NM); Baucom, Kevin C. (Albuquerque, NM)

1997-01-01T23:59:59.000Z

260

Pneumatic gap sensor and method  

DOE Patents [OSTI]

An apparatus and method for monitoring and maintaining a predetermined width in the gap between a casting nozzle and a casting wheel, wherein the gap is monitored by means of at least one pneumatic gap sensor. The pneumatic gap sensor is mounted on the casting nozzle in proximity to the casting surface and is connected by means of a tube to a regulator and a transducer. The regulator provides a flow of gas through a restictor to the pneumatic gap sensor, and the transducer translates the changes in the gas pressure caused by the proximity of the casting wheel to the pneumatic gap sensor outlet into a signal intelligible to a control device. The relative positions of the casting nozzle and casting wheel can thereby be selectively adjusted to continually maintain a predetermined distance between their adjacent surfaces. The apparatus and method enables accurate monitoring of the actual casting gap in a simple and reliable manner resistant to the extreme temperatures and otherwise hostile casting environment.

Bagdal, Karl T. (Middletown, OH); King, Edward L. (Trenton, OH); Follstaedt, Donald W. (Middletown, OH)

1992-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "method analytical method" 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

Method to improve superconductor cable  

DOE Patents [OSTI]

A method is disclosed of making a stranded superconductor cable having improved flexing and bending characteristics. In such method, a plurality of superconductor strands are helically wound around a cylindrical portion of a mandrel which tapers along a transitional portion to a flat end portion. The helically wound strands form a multistrand hollow cable which is partially flattened by pressure rollers as the cable travels along the transitional portion. The partially flattened cable is impacted with repeated hammer blows as the hollow cable travels along the flat end portion. The hammer blows flatten both the internal and the external surfaces of the strands. The cable is fully flattened and compacted by two sets of pressure rollers which engage the flat sides and the edges of the cable after it has traveled away from the flat end portion of the mandrel. The flattened internal surfaces slide easily over one another when the cable is flexed or bent so that there is very little possibility that the cable will be damaged by the necessary flexing and bending required to wind the cable into magnet coils.

Borden, A.R.

1984-03-08T23:59:59.000Z

262

Method of monitoring crystal growth  

DOE Patents [OSTI]

A system and method are disclosed for monitoring the growth of a crystalline body from a liquid meniscus in a furnace. The system provides an improved human/machine interface so as to reduce operator stress, strain and fatigue while improving the conditions for observation and control of the growing process. The system comprises suitable optics for forming an image of the meniscus and body wherein the image is anamorphic so that the entire meniscus can be viewed with good resolution in both the width and height dimensions. The system also comprises a video display for displaying the anamorphic image. The video display includes means for enhancing the contrast between any two contrasting points in the image. The video display also comprises a signal averager for averaging the intensity of at least one preselected portions of the image. The value of the average intensity, can in turn be utilized to control the growth of the body. The system and method are also capable of observing and monitoring multiple processes.

Sachs, Emanual M. (Watertown, MA)

1982-01-01T23:59:59.000Z

263

Method for processing aqueous wastes  

DOE Patents [OSTI]

A method for treating waste water such as that from an industrial processing facility comprising the separation of the waste water into a dilute waste stream and a concentrated waste stream. The concentrated waste stream is treated chemically to enhance precipitation and then allowed to separate into a sludge and a supernate. The supernate is skimmed or filtered from the sludge and blended with the dilute waste stream to form a second dilute waste stream. The sludge remaining is mixed with cementitious material, rinsed to dissolve soluble components, then pressed to remove excess water and dissolved solids before being allowed to cure. The dilute waste stream is also chemically treated to decompose carbonate complexes and metal ions and then mixed with cationic polymer to cause the precipitated solids to flocculate. Filtration of the flocculant removes sufficient solids to allow the waste water to be discharged to the surface of a stream. The filtered material is added to the sludge of the concentrated waste stream. The method is also applicable to the treatment and removal of soluble uranium from aqueous streams, such that the treated stream may be used as a potable water supply.

Pickett, John B. (3922 Wood Valley Dr., Aiken, SC 29803); Martin, Hollis L. (Rt. 1, Box 188KB, McCormick, SC 29835); Langton, Christine A. (455 Sumter St. SE., Aiken, SC 29801); Harley, Willie W. (110 Fairchild St., Batesburg, SC 29006)

1993-01-01T23:59:59.000Z

264

Medical Image Reconstruction Using Kernel Based Methods  

E-Print Network [OSTI]

The image reconstruction problem consists in finding an approximation of a function f starting from its Radon transform Rf. This problem arises in the ambit of medical imaging when one tries to reconstruct the internal structure of the body, starting from its X-ray tomography. The classical approach to this problem is based on the Back-Projection Formula. This formula gives an analytical inversion of the Radon transform, provided that all the values of Rf are known. In applications only a discrete set of values of Rf is given, thus, one can only obtain an approximation of f. Another class of methods, called ART, can be used to solve the reconstruction problem. Following the ideas contained in ART, we try to apply the Hermite-Birkhoff interpolation to the reconstruction problem. It turns out that, since the Radon transform of a kernel basis function can be infinity, a regularization technique is needed. The method we present here is then based on positive definite kernel functions and it is very flexible thank...

Sironi, Amos

2011-01-01T23:59:59.000Z

265

Abstract--The task of reconstructing an object from its projections via tomographic methods is a time-consuming process  

E-Print Network [OSTI]

Abstract--The task of reconstructing an object from its projections via tomographic methods modules can be executed on the GPU and their output linked internally. The data never leaves the GPU and analytical reconstruction methods. Analytical methods rely on the Fourier Slice Theorem and the Radon

Mueller, Klaus

266

Method of patterning an aerogel  

DOE Patents [OSTI]

A method for producing a pattern in an aerogel disposed as a coating on a substrate comprises exposing the aerogel coating to the vapors of a hydrophobic silane compound, masking the aerogel coating with a shadow photomask and irradiating the aerogel coating with ultraviolet (UV) irradiation. The exposure to UV through the shadow mask creates a pattern of hydrophobic and hydrophilic regions in the aerogel coating. Etching away the hydrophilic regions of the aerogel coating, preferably with a 1 molar solution of sodium hydroxide, leaves the unwetted and unetched hydrophobic regions of the aerogel layer on the substrate, replicating the pattern of the photomask. The hydrophobic aerogel pattern can be further exposed to UV irradiation if desired, to create a hydrophilic aerogel pattern.

Reed, Scott T. (Edgewood, NM)

2012-07-24T23:59:59.000Z

267

Algebraic methods in vibrational spectroscopy  

SciTech Connect (OSTI)

These lectures review some advances in the algebraic description of molecules from two point of views: structure and dynamics. We start by presenting the basic ideas involved in the traditional description of molecular structure in configuration space, where the Born-Oppenheimer and rotor-rigid approximations are assumed to be valid. We then focus on the vibrational degrees of freedom in order to introduce the traditional algebraic realization in terms of bosonic operators of harmonic oscillators. This analysis allows the algebraic methods based on dynamical unitary groups to be introduced as a anharmonization procedure where the local bosonic operators are translated into operators satisfying the su(2) commutation relations. Some examples of the vibrational spec-troscopic description are presented. Concerned with the dynamical point of view an algebraic model to describe collinear collisions in the semiclassical approximation is presented.

Lemus, Renato [Instituto de Ciencias Nucleares, Universidad Nacional Autonoma de Mexico, Apartado Postal 70-543, 04510 Mexico, DF (Mexico)

2011-03-21T23:59:59.000Z

268

Synthesis gas method and apparatus  

DOE Patents [OSTI]

A method and apparatus for producing a synthesis gas product having one or more oxygen transport membrane elements thermally coupled to one or more catalytic reactors such that heat generated from the oxygen transport membrane element supplies endothermic heating requirements for steam methane reforming reactions occurring within the catalytic reactor through radiation and convention heat transfer. A hydrogen containing stream containing no more than 20 percent methane is combusted within the oxygen transport membrane element to produce the heat and a heated combustion product stream. The heated combustion product stream is combined with a reactant stream to form a combined stream that is subjected to the reforming within the catalytic reactor. The apparatus may include modules in which tubular membrane elements surround a central reactor tube.

Kelly, Sean M.; Kromer, Brian R.; Litwin, Michael M.; Rosen, Lee J.; Christie, Gervase Maxwell; Wilson, Jamie R.; Kosowski, Lawrence W.; Robinson, Charles

2013-01-08T23:59:59.000Z

269

Mathematical methods for protein science  

SciTech Connect (OSTI)

Understanding the structure and function of proteins is a fundamental endeavor in molecular biology. Currently, over 100,000 protein sequences have been determined by experimental methods. The three dimensional structure of the protein determines its function, but there are currently less than 4,000 structures known to atomic resolution. Accordingly, techniques to predict protein structure from sequence have an important role in aiding the understanding of the Genome and the effects of mutations in genetic disease. The authors describe current efforts at Sandia to better understand the structure of proteins through rigorous mathematical analyses of simple lattice models. The efforts have focused on two aspects of protein science: mathematical structure prediction, and inverse protein folding.

Hart, W.; Istrail, S.; Atkins, J. [Sandia National Labs., Albuquerque, NM (United States)

1997-12-31T23:59:59.000Z

270

Freeze chromatography method and apparatus  

DOE Patents [OSTI]

A freeze chromatography method and apparatus are provided which enable separation of the solutes contained in a sample. The apparatus includes an annular column construction comprising cylindrical inner and outer surfaces defining an annular passage therebetween. One of the surfaces is heated and the other cooled while passing an eluent through the annular passageway so that the eluent in contact with the cooled surface freezes and forms a frozen eluent layer thereon. A mixture of solutes dissolved in eluent is passed through the annular passageway in contact with the frozen layer so that the sample solutes in the mixture will tend to migrate either toward or away the frozen layer. The rate at which the mixture flows through the annular passageway is controlled so that the distribution of the sample solutes approaches that at equilibrium and thus a separation between the sample solutes occurs. 3 figs.

Scott, C.D.

1987-04-16T23:59:59.000Z

271

Method for directional hydraulic fracturing  

DOE Patents [OSTI]

A method for directional hydraulic fracturing using borehole seals to confine pressurized fluid in planar permeable regions, comprising: placing a sealant in the hole of a structure selected from geologic or cemented formations to fill the space between a permeable planar component and the geologic or cemented formation in the vicinity of the permeable planar component; making a hydraulic connection between the permeable planar component and a pump; permitting the sealant to cure and thereby provide both mechanical and hydraulic confinement to the permeable planar component; and pumping a fluid from the pump into the permeable planar component to internally pressurize the permeable planar component to initiate a fracture in the formation, the fracture being disposed in the same orientation as the permeable planar component.

Swanson, David E. (West St. Paul, MN); Daly, Daniel W. (Crystal, MN)

1994-01-01T23:59:59.000Z

272

Method for magnesium sulfate recovery  

DOE Patents [OSTI]

A method of obtaining magnesium sulfate substantially free from radioactive uranium from a slag containing the same and having a radioactivity level of at least about 7000 pCi/gm. The slag is ground to a particle size of about 200 microns or less. The ground slag is then contacted with a concentrated sulfuric acid under certain prescribed conditions to produce a liquid product and a solid product. The particulate solid product and a minor amount of the liquid is then treated to produce a solid residue consisting essentially of magnesium sulfate substantially free of uranium and having a residual radioactivity level of less than 1000 pCi/gm. In accordance with the preferred embodiment of the invention, a catalyst and an oxidizing agent are used during the initial acid treatment and a final solid residue has a radioactivity level of less than about 50 pCi/gm.

Gay, Richard L. (Canoga Park, CA); Grantham, LeRoy F. (Calabasas, CA)

1987-01-01T23:59:59.000Z

273

Method for microbeam radiation therapy  

DOE Patents [OSTI]

A method is disclosed of performing radiation therapy on a patient, involving exposing a target, usually a tumor, to a therapeutic dose of high energy electromagnetic radiation, preferably X-ray radiation. The dose is in the form of at least two non-overlapping microbeams of radiation, each microbeam having a width of less than about 1 millimeter. Target tissue exposed to the microbeams receives a radiation dose during the exposure that exceeds the maximum dose that such tissue can survive. Non-target tissue between the microbeams receives a dose of radiation below the threshold amount of radiation that can be survived by the tissue, and thereby permits the non-target tissue to regenerate. The microbeams may be directed at the target from one direction, or from more than one direction in which case the microbeams overlap within the target tissue enhancing the lethal effect of the irradiation while sparing the surrounding healthy tissue. No Drawings

Slatkin, D.N.; Dilmanian, F.A.; Spanne, P.O.

1994-08-16T23:59:59.000Z

274

Automatic heliostat track alignment method  

SciTech Connect (OSTI)

This patent describes a heliostat alignment method consisting of a number of steps. The first step consists of commanding a sunbeam centroid to a target location to establish a reference position. The next step searches for the actual sunbeam centroid position and determines the sunbeam centroid position error. These actions are followed by the analysis of the sunbeam centroid position error, correlating the sunbeam position error to errors in a heliostat reference system, and changing the heliostat reference system to correct for track misalignment in order to establish a revised heliostat reference system. The final step is changing the track alignment based on the revised heliostat reference system to a new position to correct the track misalignment.

Not Available

1986-01-14T23:59:59.000Z

275

Dissipative structures and related methods  

DOE Patents [OSTI]

Dissipative structures include at least one panel and a cell structure disposed adjacent to the at least one panel having interconnected cells. A deformable material, which may comprise at least one hydrogel, is disposed within at least one interconnected cell proximate to the at least one panel. Dissipative structures may also include a cell structure having interconnected cells formed by wall elements. The wall elements may include a mesh formed by overlapping fibers having apertures formed therebetween. The apertures may form passageways between the interconnected cells. Methods of dissipating a force include disposing at least one hydrogel in a cell structure proximate to at least one panel, applying a force to the at least one panel, and forcing at least a portion of the at least one hydrogel through apertures formed in the cell structure.

Langhorst, Benjamin R; Chu, Henry S

2013-11-05T23:59:59.000Z

276

Forty years with nondestructive methods  

Science Journals Connector (OSTI)

The author takes the opportunity to strike the balance of his activity. He was the first establishing the qualitative and quantitative influence of curing conditions of concrete on the relations between nondestructively measured values ultrasonic pulse velocity or attenuation and rebound indices (V A R) and its compressive strength. Since 1969 he had been behind a new approach for simultaneous use of concrete. The advantage of this multiple correlation concept (an off-spring of an original method for statistical quality analysis for the control of concrete quality) have been already well documented. The author established also a new criterium for the frost resistance of concrete based on the variation of the logarithmic decrement of the vibrations (both free or forced). His activity as an expert led to the foundation of the Engineering Society Cologne. He was entrusted with its presidency. Further examples shall inform about different field investigations carried out.

George Teodoru

1999-01-01T23:59:59.000Z

277

Method for enhanced oil recovery  

DOE Patents [OSTI]

The present invention is directed to an improved method for enhanced recovery of oil from relatively "cold" reservoirs by carbon dioxide flooding. In oil reservoirs at a temperature less than the critical temperature of 87.7.degree. F. and at a pore pressure greater than the saturation pressure of carbon dioxide at the temperature of the reservoir, the carbon dioxide remains in the liquid state which does not satisfactorily mix with the oil. However, applicants have found that carbon dioxide can be vaporized in situ in the reservoir by selectively reducing the pore pressure in the reservoir to a value less than the particular saturated vapor pressure so as to greatly enhance the mixing of the carbon dioxide with the oil.

Comberiati, Joseph R. (Morgantown, WV); Locke, Charles D. (Morgantown, WV); Kamath, Krishna I. (Chicago, IL)

1980-01-01T23:59:59.000Z

278

Emergency cooling system and method  

DOE Patents [OSTI]

An improved emergency cooling system and method are disclosed that may be adapted for incorporation into or use with a nuclear BWR wherein a reactor pressure vessel (RPV) containing a nuclear core and a heat transfer fluid for circulation in a heat transfer relationship with the core is housed within an annular sealed drywell and is fluid communicable therewith for passage thereto in an emergency situation the heat transfer fluid in a gaseous phase and any noncondensibles present in the RPV, an annular sealed wetwell houses the drywell, and a pressure suppression pool of liquid is disposed in the wetwell and is connected to the drywell by submerged vents. The improved emergency cooling system and method has a containment condenser for receiving condensible heat transfer fluid in a gaseous phase and noncondensibles for condensing at least a portion of the heat transfer fluid. The containment condenser has an inlet in fluid communication with the drywell for receiving heat transfer fluid and noncondensibles, a first outlet in fluid communication with the RPV for the return to the RPV of the condensed portion of the heat transfer fluid and a second outlet in fluid communication with the drywell for passage of the noncondensed balance of the heat transfer fluid and the noncondensibles. The noncondensed balance of the heat transfer fluid and the noncondensibles passed to the drywell from the containment condenser are mixed with the heat transfer fluid and the noncondensibles from the RPV for passage into the containment condenser. A water pool is provided in heat transfer relationship with the containment condenser and is thermally communicable in an emergency situation with an environment outside of the drywell and the wetwell for conducting heat transferred from the containment condenser away from the wetwell and the drywell. 5 figs.

Oosterkamp, W.J.; Cheung, Y.K.

1994-01-04T23:59:59.000Z

279

Lattice Boltzmann method Author: Igor Mele  

E-Print Network [OSTI]

Seminar Lattice Boltzmann method Author: Igor Mele Mentor: prof. dr. Iztok Tiselj Ljubljana, March 2013 Abstract Lattice Boltzmann method is relatively new method in the field of computational fluid dynamics will be presented. It is called the lattice Boltzmann method (LBM). In the last 20 years, LBM

?umer, Slobodan

280

Compositions and methods for increasing cellulose production  

DOE Patents [OSTI]

This disclosure relates to methods and compositions for genetically altering cellulose biosynthesis.

Yang, Zhenbiao (Riverside, CA); Karr, Stephen (Camarillo, CA)

2012-05-01T23:59:59.000Z

Note: This page contains sample records for the topic "method analytical method" 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

QuEChERS Multiresidue Method Validation and Mass Spectrometric Assessment for the Novel Anthranilic Diamide Insecticides Chlorantraniliprole and Cyantraniliprole  

Science Journals Connector (OSTI)

Timo Schwarz , Timothy A. Snow , Christopher J. Santee #, Christopher C. Mulligan #, Thomas Class , Michael P. Wadsley ?, and Sergio C. Nanita *? ... Briefly, acceptable analytical methods are expected to provide average percent recoveries, (analyte found/analyte added) 100, between 70 and 110% for the individual analytes in each matrix tested, with relative standard deviation (RSD) no greater than 20%. ... classes, which demonstrate the general applicability of the method for multiclass anal. ...

Timo Schwarz; Timothy A. Snow; Christopher J. Santee; Christopher C. Mulligan; Thomas Class; Michael P. Wadsley; Sergio C. Nanita

2010-12-31T23:59:59.000Z

282

A rapid analytical pyrolysis method - Alfalfa (Medicago sativa)  

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

Increase in 4-coumaryl alcohol (H) units during lignification in Increase in 4-coumaryl alcohol (H) units during lignification in alfalfa (Medicago sativa) alters extractability and molecular weight of lignin Angela Ziebell 1,2 , Kristen Gracom ,1,2 , Rui Katahira 1 , Fang Chen 3,4 , Yunqiao Pu 5,6 , Art Ragauskas 5,6 , Richard A. Dixon 3,4 and Mark Davis 1,2 1-National Bioenergy Center, National Renewable Energy Laboratory, Golden, CO 80401-3393; 2-Bioenergy Science Center, National Renewable Energy Laboratory, 1617 Golden, CO 80401-3393; 3-Samuel Roberts Noble Foundation, Ardmore, OK 73401; 4-Bioenergy Science Center, Ardmore, OK 73401; 5-Institute of Paper Science and Technology at Georgia Tech., Atlanta, GA 30318; 6-Bioenergy Science Center, Georgia Tech., Atlanta, GA 30318 Running head: Increase in coumaryl alcohol units alters lignin molecular weight

283

MARTIN, D. F. 1972. Marine chemistry, v. 1. Analytical methods.  

Science Journals Connector (OSTI)

for the obvious care with which they have been selected and for the annotations which ... manuals (Amer. Public Health Ass. 1971; Environ. Prot. Agency 1971).

1999-12-27T23:59:59.000Z

284

Analytical Methods for Implementing Industrial Load Management Programs  

E-Print Network [OSTI]

Many utilities have completed long-term planning studies and have shown that a load management program is cost effective. They are now actively implementing large-scale, system-wide programs such as demand subscription, interruptable rates, and time...

Hassig, N.; Chan, M.; Carlson, R.

1982-01-01T23:59:59.000Z

285

Anglophone Historicism: From Modernist Method to Post-analytic Philosophy  

E-Print Network [OSTI]

Bevir / Journal of the Philosophy of History 3 (2009) 211Journal of the Philosophy of History 3 (2009) 211224of the Society for the Philosophy of History at the American

Bevir, Mark

2009-01-01T23:59:59.000Z

286

SASSI Analytical Methods Compared with SHAKE Free-Field Results  

Office of Environmental Management (EM)

presents a methodology for validating SASSI for use with a particular site profile, foundation size, and embedment depth. Two case studies are presented: 1) a deep soil site at...

287

Putting synchrotron radiation to work for technology: Analytic methods  

SciTech Connect (OSTI)

This report contains viewgraphs on: Advanced Light Source; Ultra-ESCA: Advanced Capabilities of XPS with High-Brightness Synchrotron Radiation; High-Resolution (20 nm) XPS and XANES with the ALS; Photoelectron Spectroscopy in Industry: Current Capabilities, Needs, and Possible Roles for the ALS; Materials Analysis by Photoemission: Is This Practical at ALS?; Applications of Long-Wavelength X-Ray Fluorescence Spectrometry and X-Ray Powder Diffractometry.

Not Available

1992-02-01T23:59:59.000Z

288

Putting synchrotron radiation to work for technology: Analytic methods  

SciTech Connect (OSTI)

This report contains viewgraphs on: Advanced Light Source; Ultra-ESCA: Advanced Capabilities of XPS with High-Brightness Synchrotron Radiation; High-Resolution (20 nm) XPS and XANES with the ALS; Photoelectron Spectroscopy in Industry: Current Capabilities, Needs, and Possible Roles for the ALS; Materials Analysis by Photoemission: Is This Practical at ALS ; Applications of Long-Wavelength X-Ray Fluorescence Spectrometry and X-Ray Powder Diffractometry.

Not Available

1992-02-01T23:59:59.000Z

289

COMPARISON OF ANALYTICAL METHODS FOR CHARACTERIZATION OF THE THERMOCHROMIC  

E-Print Network [OSTI]

, electrochromic materials, and sensors.1 Another interesting property of many conjugated polymers utilized for the characterization of the electrochromic properties of conjugated polymers.7 Investigation

Euler, William B.

290

Validation of Analytic Methods for Biomarkers Used in Drug Development  

Science Journals Connector (OSTI)

...this reflects the lengthy process of assay development and validation...agency was not slowing the process of marker development unduly...Information on current FDA review processes can be found at http...additional barriers to biomarker commercialization were identified (Table 2...

Cindy H. Chau; Olivier Rixe; Howard McLeod; and William D. Figg

2008-10-01T23:59:59.000Z

291

Structural reliability of brittle materials - an analytical method  

E-Print Network [OSTI]

) (IIember) J r'-*rr 1967 (IR&nth) (Year) 111 A?as T p AcT Thc ir&creasin?use of britt. le, maLcrials i)a sero- spa' . appl. i c?tions a'nd a laclc of adequate prescr&t 3c&aoieledge ?s to t:heir behavior ha crentecl a serious pro'blam. Clas&ica3...

Shields, Charles Burch

1967-01-01T23:59:59.000Z

292

Early test facilities and analytic methods for radiation shielding: Proceedings  

SciTech Connect (OSTI)

This report represents a compilation of eight papers presented at the 1992 American Nuclear Society/European Nuclear Society International Meeting. The meeting is of special significance since it commemorates the fiftieth anniversary of the first controlled nuclear chain reaction. The papers contained in this report were presented in a special session organized by the Radiation Protection and Shielding Division in keeping with the historical theme of the meeting. The paper titles are good indicators of their content and are: (1) The origin of radiation shielding research: The Oak Ridge experience, (2) Shielding research at the hanford site, (3) Aircraft shielding experiments at General Dynamics Fort Worth, 1950-1962, (4) Where have the neutrons gone , a history of the tower shielding facility, (5) History and evolution of buildup factors, (6) Early shielding research at Bettis atomic power laboratory, (7) UK reactor shielding: then and now, (8) A very personal view of the development of radiation shielding theory.

Ingersoll, D.T. (comp.) (Oak Ridge National Lab., TN (United States)); Ingersoll, J.K. (comp.) (Tec-Com, Knoxville, TN (United States))

1992-11-01T23:59:59.000Z

293

OIL AND GREASE: A PROPOSED ANALYTICAL METHOD FOR  

E-Print Network [OSTI]

(vol) PE, filter and apply suction until reasonably dry. Air dry and store in a jar. Filter paper and jars (Virtis Model 23 and 200-ml blender jars), rotating evaporator with 250-ml flask, film to seal without vacuum. Apply vacuum, rinse brief- ly, and press down along edge of mat to ensure a good seal

294

D-1 2003 SITE ENVIRONMENTAL REPORT Instrumentation and Analytical Methods  

E-Print Network [OSTI]

) traceable standards: americium-241 for alpha, and strontium-90 for beta. Spiked duplicates are performed-traceable standards: americium-241 for alpha and strontium-90 for beta. Tritium Analysis - Water Matrix - EPA 906

Homes, Christopher C.

295

Vehicle security apparatus and method  

DOE Patents [OSTI]

A vehicle security apparatus for use in a motor vehicle is disclosed, the apparatus comprising an optical key, a receptacle, a receiver and at least one optical fiber. The optical key has a transmitter having at least one first preprogrammed coded signal stored in a first electric circuit. The receptacle receives the optical key and at least one transmittable coded optical signal from the transmitter corresponding to the at least one preprogrammed coded signal stored in the first electric circuit. The receiver compares the at least one transmittable coded optical signal to at least one second preprogrammed coded signal stored in a second electric circuit and the receiver is adapted to trigger switching effects for at least one of enabling starting the motor vehicle and starting the motor vehicle upon determination that the at least one transmittable coded optical signal corresponds to the at least one second preprogrammed signal in the second electric circuit. The at least one optical fiber is operatively connected between the receptacle and the receiver for carrying the optical signal from the receptacle to the receiver. Also disclosed is a method for permitting only authorized use of a motor vehicle. 7 figs.

Veligdan, J.T.

1996-02-13T23:59:59.000Z

296

Vehicle security apparatus and method  

DOE Patents [OSTI]

A vehicle security apparatus for use in a motor vehicle, the apparatus comprising an optical key, a receptacle, a receiver and at least one optical fiber. The optical key has a transmitter having at least one first preprogrammed coded signal stored in a first electric circuit. The receptacle receives the optical key and at least one transmittable coded optical signal from the transmitter corresponding to the at least one preprogrammed coded signal stored in the first electric circuit. The receiver compares the at least one transmittable coded optical signal to at least one second preprogrammed coded signal stored in a second electric circuit and the receiver is adapted to trigger switching effects for at least one of enabling starting the motor vehicle and starting the motor vehicle upon determination that the at least one transmittable coded optical signal corresponds to the at least one second preprogrammed signal in the second electric circuit. The at least one optical fiber is operatively connected between the receptacle and the receiver for carrying the optical signal from the receptacle to the receiver. Also disclosed is a method for permitting only authorized use of a motor vehicle.

Veligdan, James T. (Manorville, NY)

1996-02-13T23:59:59.000Z

297

Infrared emitting device and method  

DOE Patents [OSTI]

The infrared emitting device comprises a III-V compound semiconductor substrate upon which are grown a quantum-well active region having a plurality of quantum-well layers formed of a ternary alloy comprising InAsSb sandwiched between barrier layers formed of a ternary alloy having a smaller lattice constant and a larger energy bandgap than the quantum-well layers. The quantum-well layers are preferably compressively strained to increase the threshold energy for Auger recombination; and a method is provided for determining the preferred thickness for the quantum-well layers. Embodiments of the present invention are described having at least one cladding layer to increase the optical and carrier confinement in the active region, and to provide for waveguiding of the light generated within the active region. Examples have been set forth showing embodiments of the present invention as surface- and edge-emitting light emitting diodes (LEDs), an optically-pumped semiconductor laser, and an electrically-injected semiconductor diode laser. The light emission from each of the infrared emitting devices of the present invention is in the midwave infrared region of the spectrum from about 2 to 6 microns. 8 figs.

Kurtz, S.R.; Biefeld, R.M.; Dawson, L.R.; Howard, A.J.; Baucom, K.C.

1997-04-29T23:59:59.000Z

298

Analytic Feminism: A Brief Introduction  

E-Print Network [OSTI]

This essay introduces the subject of this special issue by offering a characterization of analytic feminism in terms of its context, methods, and problem areas. I argue that analytic feminism is a legitimate sub-field both ...

Cudd, Ann E.

1995-01-01T23:59:59.000Z

299

End Points Specification Methods | Department of Energy  

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

End Points Specification Methods End Points Specification Methods End Points Specification Methods Two methods to develop end point specifications are presented. These have evolved from use in the field for deactivation projects. The hierarchical method is systematic, comprehensive, and completely defensible as to the basis for each specification. This method may appear complex to the uninitiated, but it is a straightforward application of a systematic engineering approach. It is labor intensive only during the final stage. This method is appropriate to the type of project involving a complex facility that contains process systems and a variety of contaminated areas or other hazards. The checklist method is an approach that is more appropriate to facilities which require less detailed planning, such as for industrial

300

New Variational Method for the Free Energy  

Science Journals Connector (OSTI)

......New Variational Method for the Free Energy Akihide Oguchi Department of Physics...new variational method for the free energy in statistical physics is proposed. The value of the free energy obtained by using the new variational......

Akihide Oguchi

1984-06-01T23:59:59.000Z

Note: This page contains sample records for the topic "method analytical method" 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

Novel Methods for Harvesting Solar Energy  

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

Novel Methods for Harvesting Solar Energy Novel Methods for Harvesting Solar Energy GrossmanFulv.png Model of a molecule that reversibly changes it structure when it absorbs light....

302

The evolution of shallow seismic exploration methods  

E-Print Network [OSTI]

Near-surface seismic methods have developed considerably and have been applied much more widely since the 1970s. Improvements in instrumentation, along with cheaper computer power, have greatly affected the capabilities of these methods in recent...

Steeples, Don W.; Schmeissner, Chris M.; Macy, Brian

1995-07-01T23:59:59.000Z

303

A New Ranking Method For Fuzzy FMEA  

Science Journals Connector (OSTI)

In this paper, we extend the method introduced by Bowles and Pelez (1995) for the risk ranking in Failure Mode and Effect Analysis (FMEA). This method called as multi-ranking ... Penang, Malaysia. Comparisons we...

Muhammad Suzuri Hitam; Suresh Gobee

2004-01-01T23:59:59.000Z

304

Method For Testing Properties Of Corrosive Lubricants  

DOE Patents [OSTI]

A method of testing corrosive lubricating media using a wear testing apparatus without a mechanical seal. The wear testing apparatus and methods are effective for testing volatile corrosive lubricating media under pressure and at high temperatures.

Ohi, James (Denver, CO); De La Cruz, Jose L. (San Antonio, TX); Lacey, Paul I. (Wexford, IE)

2006-01-03T23:59:59.000Z

305

Methods and compositions using calcium carbonate  

DOE Patents [OSTI]

Provided herein are compositions and methods including hydraulic cement, supplementary cementitious material, and/or self-cementing material. Methods for making the compositions and using the compositions are provided.

Constantz, Brent R. (Portola Valley, CA); Farsad, Kasra (San Jose, CA); Camire, Chris (San Jose, CA); Patterson, Joshua (Freedom, CA); Ginder-Vogel, Matthew (Los Gatos, CA); Yaccato, Karin (San Jose, CA); Stagnaro, John (Santa Clara, CA); Devenney, Martin (Mountain View, CA); Ries, Justin (Chapel Hill, NC)

2011-11-22T23:59:59.000Z

306

Simplified methods of modeling multilayer reservoirs  

E-Print Network [OSTI]

The purpose of this study is to develop simplified methods to model multilayer reservoirs. We examined the method to model well responses of multilayer reservoirs with equivalent single layer solutions during transient flow period which Bennett...

Ryou, Sangsoo

1993-01-01T23:59:59.000Z

307

Methods of Conditioning Direct Methanol Fuel Cells  

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

Methods of Conditioning Direct Methanol Fuel Cells Methods of Conditioning Direct Methanol Fuel Cells Methods of Conditioning Direct Methanol Fuel Cells Methods for conditioning the membrane electrode assembly of a direct methanol fuel cell ("DMFC") are disclosed. Available for thumbnail of Feynman Center (505) 665-9090 Email Methods of Conditioning Direct Methanol Fuel Cells Methods for conditioning the membrane electrode assembly of a direct methanol fuel cell ("DMFC") are disclosed. In a first method, an electrical current of polarity opposite to that used in a functioning direct methanol fuel cell is passed through the anode surface of the membrane electrode assembly. In a second method, methanol is supplied to an anode surface of the membrane electrode assembly, allowed to cross over the polymer

308

Electrical, electromagnetic, and magnetotelluric methods | Open Energy  

Open Energy Info (EERE)

Electrical, electromagnetic, and magnetotelluric methods Electrical, electromagnetic, and magnetotelluric methods Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal Article: Electrical, electromagnetic, and magnetotelluric methods Abstract Application of electrical methods began with Robert W. Fox's 1830 observation of self potentials associated with copper vein deposits in Cornwall. Conrad Schlumberger introduced the direct current equal potential line resistivity method in 1912. Harry W. Conklin received the first patents on the electromagnetic (EM) method in 1917. From these beginnings, the history of the development of the resistivity induced-polarization (IP), magnetotelluric and EM methods are traced to the present time. It is of interest to note that application of electrical methods flourished from

309

Method for designing gas tag compositions  

DOE Patents [OSTI]

For use in the manufacture of gas tags such as employed in a nuclear reactor gas tagging failure detection system, a method for designing gas tagging compositions utilizes an analytical approach wherein the final composition of a first canister of tag gas as measured by a mass spectrometer is designated as node No. 1. Lattice locations of tag nodes in multi-dimensional space are then used in calculating the compositions of a node No. 2 and each subsequent node so as to maximize the distance of each node from any combination of tag components which might be indistinguishable from another tag composition in a reactor fuel assembly. Alternatively, the measured compositions of tag gas numbers 1 and 2 may be used to fix the locations of nodes 1 and 2, with the locations of nodes 3-N then calculated for optimum tag gas composition. A single sphere defining the lattice locations of the tag nodes may be used to define approximately 20 tag nodes, while concentric spheres can extend the number of tag nodes to several hundred. 5 figures.

Gross, K.C.

1995-04-11T23:59:59.000Z

310

Method for designing gas tag compositions  

DOE Patents [OSTI]

For use in the manufacture of gas tags such as employed in a nuclear reactor gas tagging failure detection system, a method for designing gas tagging compositions utilizes an analytical approach wherein the final composition of a first canister of tag gas as measured by a mass spectrometer is designated as node #1. Lattice locations of tag nodes in multi-dimensional space are then used in calculating the compositions of a node #2 and each subsequent node so as to maximize the distance of each node from any combination of tag components which might be indistinguishable from another tag composition in a reactor fuel assembly. Alternatively, the measured compositions of tag gas numbers 1 and 2 may be used to fix the locations of nodes 1 and 2, with the locations of nodes 3-N then calculated for optimum tag gas composition. A single sphere defining the lattice locations of the tag nodes may be used to define approximately 20 tag nodes, while concentric spheres can extend the number of tag nodes to several hundred.

Gross, Kenny C. (1433 Carriage La., Bolingbrook, IL 60440)

1995-01-01T23:59:59.000Z

311

Method and apparatus for nitrogen oxide determination  

DOE Patents [OSTI]

Method and apparatus for determining nitrogen oxide content in a high temperature process gas, which involves withdrawing a sample portion of a high temperature gas containing nitrogen oxide from a source to be analyzed. The sample portion is passed through a restrictive flow conduit, which may be a capillary or a restriction orifice. The restrictive flow conduit is heated to a temperature sufficient to maintain the flowing sample portion at an elevated temperature at least as great as the temperature of the high temperature gas source, to thereby provide that deposition of ammonium nitrate within the restrictive flow conduit cannot occur. The sample portion is then drawn into an aspirator device. A heated motive gas is passed to the aspirator device at a temperature at least as great as the temperature of the high temperature gas source. The motive gas is passed through the nozzle of the aspirator device under conditions sufficient to aspirate the heated sample portion through the restrictive flow conduit and produce a mixture of the sample portion in the motive gas at a dilution of the sample portion sufficient to provide that deposition of ammonium nitrate from the mixture cannot occur at reduced temperature. A portion of the cooled dilute mixture is then passed to analytical means capable of detecting nitric oxide.

Hohorst, Frederick A. (Idaho Falls, ID)

1990-01-01T23:59:59.000Z

312

Optimization Online - Composite Proximal Bundle Method  

E-Print Network [OSTI]

Jul 30, 2009 ... Composite Proximal Bundle Method. Claudia Sagastizabal (sagastiz ***at*** impa.br). Abstract: We consider minimization of nonsmooth...

Claudia Sagastizabal

2009-07-30T23:59:59.000Z

313

Means and method of detection in chemical separation procedures  

DOE Patents [OSTI]

A means and method for indirect detection of constituent components of a mixture separated in a chemical separation process. Fluorescing ions are distributed across the area in which separation of the mixture will occur to provide a generally uniform background fluorescence intensity. For example, the mixture is comprised of one or more charged analytes which displace fluorescing ions where its constituent components separate to. Fluorescing ions of the same charge as the charged analyte components cause a displacement. The displacement results in the location of the separated components having a reduced fluorescence intensity to the remainder of the background. Detection of the lower fluorescence intensity areas can be visually, by photographic means and methods, or by automated laser scanning.

Yeung, Edward S. (Ames, IA); Koutny, Lance B. (Ames, IA); Hogan, Barry L. (Ames, IA); Cheung, Chan K. (Ames, IA); Ma, Yinfa (Ames, IA)

1993-03-09T23:59:59.000Z

314

Solitary Waves of the MRLW Equation by Variational Iteration Method  

SciTech Connect (OSTI)

In a recent publication, Soliman solved numerically the modified regularized long wave (MRLW) equation by using the variational iteration method (VIM). In this paper, corrected numerical results have been computed, plotted, tabulated, and compared with not only the exact analytical solutions but also the Adomian decomposition method results. Solitary wave solutions of the MRLW equation are exactly obtained as a convergent series with easily computable components. Propagation of single solitary wave, interaction of two and three waves, and also birth of solitons have been discussed. Three invariants of motion have been evaluated to determine the conservation properties of the problem.

Hassan, Saleh M. [Department of Mathematics, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451 (Saudi Arabia); Department of Mathematics, College of Science, Ain Shams University, Abbassia 11566, Cairo (Egypt); Alamery, D. G. [Department of Mathematics, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451 (Saudi Arabia)

2009-09-09T23:59:59.000Z

315

Standard test methods for chemical, mass spectrometric, spectrochemical, nuclear, and radiochemical analysis of uranium hexafluoride  

E-Print Network [OSTI]

1.1 These test methods cover procedures for subsampling and for chemical, mass spectrometric, spectrochemical, nuclear, and radiochemical analysis of uranium hexafluoride UF6. Most of these test methods are in routine use to determine conformance to UF6 specifications in the Enrichment and Conversion Facilities. 1.2 The analytical procedures in this document appear in the following order: Note 1Subcommittee C26.05 will confer with C26.02 concerning the renumbered section in Test Methods C761 to determine how concerns with renumbering these sections, as analytical methods are replaced with stand-alone analytical methods, are best addressed in subsequent publications. Sections Subsampling of Uranium Hexafluoride 7 - 10 Gravimetric Determination of Uranium 11 - 19 Titrimetric Determination of Uranium 20 Preparation of High-Purity U3O 8 21 Isotopic Analysis 22 Isotopic Analysis by Double-Standard Mass-Spectrometer Method 23 - 29 Determination of Hydrocarbons, Chlorocarbons, and Partially Substitut...

American Society for Testing and Materials. Philadelphia

2011-01-01T23:59:59.000Z

316

Composite materials and method of making  

DOE Patents [OSTI]

A method for forming improved composite materials using a thermosetting polyester urethane hybrid resin, a closed cavity mold having an internal heat transfer mechanism used in this method, and the composite materials formed by this method having a hybrid of a carbon fiber layer and a fiberglass layer.

Simmons, Kevin L [Kennewick, WA; Wood, Geoffrey M [North Saanich, CA

2011-05-17T23:59:59.000Z

317

Compositions and methods for treating nuclear fuel  

DOE Patents [OSTI]

Compositions are provided that include nuclear fuel. Methods for treating nuclear fuel are provided which can include exposing the fuel to a carbonate-peroxide solution. Methods can also include exposing the fuel to an ammonium solution. Methods for acquiring molybdenum from a uranium comprising material are provided.

Soderquist, Chuck Z; Johnsen, Amanda M; McNamara, Bruce K; Hanson, Brady D; Smith, Steven C; Peper, Shane M

2013-08-13T23:59:59.000Z

318

Statistical Decision Theory: Concepts, Methods and Applications  

E-Print Network [OSTI]

Statistical Decision Theory: Concepts, Methods and Applications (Special topics in Probabilistic Mazumder 950116380 #12;Part I: Decision Theory ­ Concepts and Methods 1 Part I: DECISION THEORY - Concepts and Methods Decision theory as the name would imply is concerned with the process of making decisions

Rosenthal, Jeffrey S.

319

Geometric constraint solving: The witness configuration method  

Science Journals Connector (OSTI)

Geometric constraint solving is a key issue in CAD, CAM and PLM. The systems of geometric constraints are today studied and decomposed with graph-based methods, before their numerical resolution. However, graph-based methods can detect only the simplest ... Keywords: Constraints dependences, Decomposition and solving, Geometric constraints, Rigidity theory, The numerical probabilistic method

Dominique Michelucci; Sebti Foufou

2006-04-01T23:59:59.000Z

320

General linear methods for Volterra integral equations  

Science Journals Connector (OSTI)

We investigate the class of general linear methods of order p and stage order q=p for the numerical solution of Volterra integral equations of the second kind. Construction of highly stable methods based on the Schur criterion is described and examples ... Keywords: Convolution test equation, General linear methods, Linear stability analysis, Order conditions, Volterra integral equations

G. Izzo; Z. Jackiewicz; E. Messina; A. Vecchio

2010-09-01T23:59:59.000Z

Note: This page contains sample records for the topic "method analytical method" 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

Compositions and methods for treating nuclear fuel  

DOE Patents [OSTI]

Compositions are provided that include nuclear fuel. Methods for treating nuclear fuel are provided which can include exposing the fuel to a carbonate-peroxide solution. Methods can also include exposing the fuel to an ammonium solution. Methods for acquiring molybdenum from a uranium comprising material are provided.

Soderquist, Chuck Z; Johnsen, Amanda M; McNamara, Bruce K; Hanson, Brady D; Smith, Steven C; Peper, Shane M

2014-01-28T23:59:59.000Z

322

On the homotopy perturbation method for Boussinesq-like equations  

E-Print Network [OSTI]

We comment on some analytical solutions to a class of Boussinesq-like equations derived recently by means of the homotopy perturbation method (HPM). We show that one may obtain exactly the same result by means of the Taylor series in the time variable. We derive more general results by means of travelling waves and argue that a curious superposition principle may not be of any mathematical or physical significance.

Francisco M. Fernndez

2009-07-26T23:59:59.000Z

323

Formal Methods in Industry: The State of Practice of Formal Methods in South America  

E-Print Network [OSTI]

Formal Methods in Industry: The State of Practice of Formal Methods in South America and Far East of the world, mainly South America, and Far East. A personal comparison of some formal method tools, namely

Southampton, University of

324

Method for processing silicon solar cells  

DOE Patents [OSTI]

The instant invention teaches a novel method for fabricating silicon solar cells utilizing concentrated solar radiation. The solar radiation is concentrated by use of a solar furnace which is used to form a front surface junction and back-surface field in one processing step. The present invention also provides a method of making multicrystalline silicon from amorphous silicon. The invention also teaches a method of texturing the surface of a wafer by forming a porous silicon layer on the surface of a silicon substrate and a method of gettering impurities. Also contemplated by the invention are methods of surface passivation, forming novel solar cell structures, and hydrogen passivation. 2 figs.

Tsuo, Y.S.; Landry, M.D.; Pitts, J.R.

1997-05-06T23:59:59.000Z

325

NETL: IEP - Mercury Emissions Control: Methods Development  

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

Methods Development Methods Development EPRI and NETL collaboratively funded a $3-million program under the DOE/ University of North Dakota Energy and Environmental Research Center (UNDEERC) Jointly Sponsored Research Program (JSRP) to evaluate, develop, and validate a mercury speciation method for coal-fired produced flue gas. There was a 60/40 percent split of the funding, as required under the JSRP for this two-year effort. The work conducted by the EERC identified the Ontario Hydro Method as the best mercury speciation method. The EERC has validated the Ontario Hydro Method at both pilot- and full-scale levels. Radian International aided in the full-scale validation, with a written protocol of the method being finalized through the American Society for Testing and Materials (ASTM).

326

Energy efficiency assessment methods and tools evaluation  

SciTech Connect (OSTI)

Many different methods of assessing the energy savings potential at federal installations, and identifying attractive projects for capital investment have been used by the different federal agencies. These methods range from high-level estimating tools to detailed design tools, both manual and software assisted. These methods have different purposes and provide results that are used for different parts of the project identification, and implementation process. Seven different assessment methods are evaluated in this study. These methods were selected by the program managers at the DoD Energy Policy Office, and DOE Federal Energy Management Program (FEMP). Each of the methods was applied to similar buildings at Bolling Air Force Base (AFB), unless it was inappropriate or the method was designed to make an installation-wide analysis, rather than focusing on particular buildings. Staff at Bolling AFB controlled the collection of data.

McMordie, K.L.; Richman, E.E.; Keller, J.M.; Dixon, D.R.

1994-08-01T23:59:59.000Z

327

Method using photo-induced and thermal bending of MEMS sensors  

DOE Patents [OSTI]

A method for measuring chemical analytes and physical forces by measuring changes in the deflection of a microelectromechanical cantilever structure while it is being irradiated by a light having an energy above the band gap of the structure.

Datskos, Panagiotis G. (Knoxville, TN)

2001-01-01T23:59:59.000Z

328

Determination of Pesticides in Fruit and Fruit Juices by Chromatographic Methods. An Overview  

Science Journals Connector (OSTI)

......analytical laboratories at reasonable prices due to its applicability to detection...Keely. Method valida- tion of resistive heating - gas chromatography with flame photometric...organic chemicals of interest in fish oils. Environ. Sci. Technol. 43(9......

Virgnia C. Fernandes; Valentina F. Domingues; Cristina Delerue-Matos; Nuno Mateus

2011-10-01T23:59:59.000Z

329

E-Print Network 3.0 - assurance sampling method Sample Search...  

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

Process Design 6.0 Sampling Procedures B2 Sampling Methods Requirements 6.0 Sampling... Procedures B3 Sample Handling and Custody Requirements 7.0 Sample Custody B4 Analytical...

330

Guide to ASTM test methods for the analysis of coal and coke  

SciTech Connect (OSTI)

The guide includes brief descriptions of all 56 ASTM test methods that cover the physical, chemical, and spectroscopic analytical techniques to qualitatively and quantitatively identify over 40 chemical and physical properties of coal, coke, their products, and by-products.

R.A. Kishore Nadkarni (ed.)

2008-07-01T23:59:59.000Z

331

3D Weak-Dispersion Reverse-Time Migration with a StereoModeling Method  

E-Print Network [OSTI]

The finite difference method has been widely used in seismic modeling and reverse time migration. However, it generally has two issues: large computational cost and numerical dispersion. Recently, a nearly-analytic discrete ...

Li, Jingshuang

2013-01-01T23:59:59.000Z

332

Hanford Environmental Analytical Methods (methods of of March 1990). Volume 1  

SciTech Connect (OSTI)

Techniques in use at the Hanford Reservation as of March, 1990 for the analysis of liquids and radioactive effluents are described. Limitations and applications of the techniques are included.

Goheen, S.C.; McCulloch, M.; Daniel, J.L.

1993-05-01T23:59:59.000Z

333

E-Print Network 3.0 - analytical methods methods Sample Search...  

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

of Marine Benthic Ecology and Evolution, Collection: Biology and Medicine ; Environmental Sciences and Ecology 12 Multicriteria analysis problems Multicriteria analysis problem may...

334

Method of Synthesis of Proton Conducting Materials  

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

Method of Synthesis of Proton Conducting Materials Method of Synthesis of Proton Conducting Materials Method of Synthesis of Proton Conducting Materials A method of producing a proton conducting material. Available for thumbnail of Feynman Center (505) 665-9090 Email Method of Synthesis of Proton Conducting Materials A method of producing a proton conducting material, comprising adding a pyrophosphate salt to a solvent to produce a dissolved pyrophosphate salt; adding an inorganic acid salt to a solvent to produce a dissolved inorganic acid salt; adding the dissolved inorganic acid salt to the dissolved pyrophosphate salt to produce a mixture; substantially evaporating the solvent from the mixture to produce a precipitate; and calcining the precipitate at a temperature of from about 400.degree. C. to about

335

Generalized methods and solvers for noise removal from piecewise constant signals. II. New methods  

Science Journals Connector (OSTI)

...piecewise constant signals. II. New methods Max A. Little 1 2 * Nick S. Jones 1 3 * Author for correspondence ( max.little@physics...existing methods, leading to new methods that have their own merit as PWC denoising methods. To recap, the notation used in part...

2011-01-01T23:59:59.000Z

336

A Monte Carlo implementation of the predictor-corrector Quasi-Static method  

SciTech Connect (OSTI)

The Quasi-Static method (QS) is a useful tool for solving reactor transients since it allows for larger time steps when updating neutron distributions. Because of the beneficial attributes of Monte Carlo (MC) methods (exact geometries and continuous energy treatment), it is desirable to develop a MC implementation for the QS method. In this work, the latest version of the QS method known as the Predictor-Corrector Quasi-Static method is implemented. Experiments utilizing two energy-groups provide results that show good agreement with analytical and reference solutions. The method as presented can easily be implemented in any continuous energy, arbitrary geometry, MC code. (authors)

Hackemack, M. W.; Ragusa, J. C. [Department of Nuclear Engineering, Texas A and M University, 337 Zachry Engineering Building, College Station, TX 77843 (United States); Griesheimer, D. P.; Pounders, J. M. [Bettis Atomic Laboratory, Bechtel Marine Propulsion Corporation, P.O. Box 79, West Mifflin, PA 15122 (United States)

2013-07-01T23:59:59.000Z

337

Laguerre polynomials method in the valon model  

E-Print Network [OSTI]

We used the Laguerre polynomials method for determination of the proton structure function in the valon model. We have examined the applicability of the valon model with respect to a very elegant method, where the structure of the proton is determined by expanding valon distributions and valon structure functions on Laguerre polynomials. We compared our results with the experimental data, GJR parameterization and DL model. Having checked, this method gives a good description for the proton structure function in valon model.

G. R. Boroun; M. Amiri

2014-02-02T23:59:59.000Z

338

The HIT method: A hazard identification technique  

SciTech Connect (OSTI)

This report explains a technique for analyzing systems and operations to identify hazards and needed controls. The HIT method can be used both as a design tool and as a risk analysis tool. As a design tool, this method identifies requirements for design criteria. As part of a risk analysis effort, HIT identifies potential accident sequences that can become part of the safety analysis documentation. Within this report the HIT method is described in detail with emphasis on application of the technique.

Howard, H.H.; Faust, C.L.

1990-01-01T23:59:59.000Z

339

Method and apparatus for measuring stress  

DOE Patents [OSTI]

A method and apparatus for determining stress in a material independent of micro-structural variations and anisotropies. The method comprises comparing the velocities of two horizontally polarized and horizontally propagating ultrasonic shear waves with interchanged directions of propagation and polarization. The apparatus for carrying out the method comprises periodic permanent magnet-electromagnetic acoustic transducers for generating and detecting the shear waves and means for determining the wave velocities.

Thompson, R.B.

1983-07-28T23:59:59.000Z

340

Hydrocarbonaceous material processing methods and apparatus  

DOE Patents [OSTI]

Methods and apparatus are disclosed for possibly producing pipeline-ready heavy oil from substantially non-pumpable oil feeds. The methods and apparatus may be designed to produce such pipeline-ready heavy oils in the production field. Such methods and apparatus may involve thermal soaking of liquid hydrocarbonaceous inputs in thermal environments (2) to generate, though chemical reaction, an increased distillate amount as compared with conventional boiling technologies.

Brecher, Lee E. (Laramie, WY)

2011-07-12T23:59:59.000Z

Note: This page contains sample records for the topic "method analytical method" 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

Isovector pairing collective motion: Generator-coordinate-method approach  

Science Journals Connector (OSTI)

Isovector pairing collective motion is treated by means of the generator coordinate method. In this scheme, the isospin and number projection is performed analytically by the recognition of symmetry properties in the generalized Bardeen-Cooper-Schrieffer wave functions. Among the results obtained, our generator-coordinate-method values of energy and spectroscopic amplitude are shown to be comparable to those of shell model calculations. This is indeed encouraging, especially in view of the fact that they were reached using a simple approximation. The great simplicity of the present method, as compared with earlier complicated versions, suggests that they might prove useful in the study of isovector pairing collective states which are strongly populated by pair transfer reactions in medium weight nuclei.

Mauro Kyotoku and Hsi-Tseng Chen

1987-09-01T23:59:59.000Z

342

Power System Transient Stability Analysis through a Homotopy Analysis Method  

SciTech Connect (OSTI)

As an important function of energy management systems (EMSs), online contingency analysis plays an important role in providing power system security warnings of instability. At present, N-1 contingency analysis still relies on time-consuming numerical integration. To save computational cost, the paper proposes a quasi-analytical method to evaluate transient stability through time domain periodic solutions frequency sensitivities against initial values. First, dynamic systems described in classical models are modified into damping free systems whose solutions are either periodic or expanded (non-convergent). Second, because the sensitivities experience sharp changes when periodic solutions vanish and turn into expanded solutions, transient stability is assessed using the sensitivity. Third, homotopy analysis is introduced to extract frequency information and evaluate the sensitivities only from initial values so that time consuming numerical integration is avoided. Finally, a simple case is presented to demonstrate application of the proposed method, and simulation results show that the proposed method is promising.

Wang, Shaobu; Du, Pengwei; Zhou, Ning

2014-04-01T23:59:59.000Z

343

Optimization Online - Splitting methods for nonconvex composite ...  

E-Print Network [OSTI]

Jul 2, 2014 ... Splitting methods for nonconvex composite optimization. Guoyin Li (g.li ***at*** unsw.edu.au) Ting Kei Pong (tkpong ***at*** cs.ubc.ca).

Guoyin Li

2014-07-02T23:59:59.000Z

344

Method for making boron carbide cermets  

DOE Patents [OSTI]

A method for synthesizing low density cermets of boron carbide and a metal binder, using decomposition of a metallic compound at controlled temperature and pressure is disclosed.

Cline, C.F.; Fulton, F.J.

1987-11-03T23:59:59.000Z

345

Superconducting materials and method of making same  

DOE Patents [OSTI]

A new chemical method and apparatus for preparing precursor powders for metal oxide superconductor ceramics are described. Superconductors, free of contaminating cations, are thus obtained. 10 figs.

Bunker, B.C.; Lamppa, D.L.; Voigt, J.A.

1988-02-25T23:59:59.000Z

346

Hydrogen Energy System and Hydrogen Production Methods  

Science Journals Connector (OSTI)

Hydrogen is being considered as a synthetic fuel ... . This paper contains an overview of the hydrogen production methods, those being commercially available today as well...

F. Barbir; T. N. Veziro?lu

1992-01-01T23:59:59.000Z

347

Estimate sequence methods: extensions and approximations  

E-Print Network [OSTI]

Aug 11, 2009 ... Estimate sequence methods: extensions and approximations ... or both, and draw some guidelines on the design of further estimate sequence...

Michel Baes

2009-08-11T23:59:59.000Z

348

Carbon nanohoops and methods of making  

DOE Patents [OSTI]

The present invention provides cycloparaphenylene compounds, their macrocyclic precursors, and methods for making the compounds. The cycloparaphenylene compounds can be used to prepare armchair carbon nanotubes.

Jasti, Ramesh; Bertozzi, Carolyn

2013-06-11T23:59:59.000Z

349

Method for making boron carbide cermets  

DOE Patents [OSTI]

A method for synthesizing low density cermets of boron carbide and a metal binder, using decomposition of a metallic compound at controlled temperature and pressure.

Cline, Carl F. (Danville, CA); Fulton, Fred J. (Livermore, CA)

1987-01-01T23:59:59.000Z

350

BIOREFINING COMPOUNDS AND ORGANOCATALYTIC UPGRADING METHODS ...  

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

invention provides new methods for the direct umpolung self-condensation of 5-hydroxymethylfurfural (HMF) by organocatalysis, thereby upgrading the readily available substrate...

351

Linearized Alternating Direction Method with Gaussian Back ...  

E-Print Network [OSTI]

Oct 28, 2011 ... ?k) in the forward. (alternating) order ...... [14] M. Fukushima, Application of the alternating direction method of multipliers to separable convex.

2011-10-28T23:59:59.000Z

352

The two cutoff phase space slicing method  

E-Print Network [OSTI]

The phase space slicing method of two cutoffs for next-to-leading-order Monte-Carlo style QCD corrections has been applied to many physics processes. The method is intuitive, simple to implement, and relies on a minimum of process dependent information. Although results for specific applications exist in the literature, there is not a full and detailed description of the method. Herein such a description is provided, along with illustrative examples; details, which have not previously been published, are included so that the method may be applied to additional hard scattering processes.

B. W. Harris; J. F. Owens

2001-02-10T23:59:59.000Z

353

Variational Iteration Method for Image Restoration  

E-Print Network [OSTI]

The famous Perona-Malik (P-M) equation which was at first introduced for image restoration has been solved via various numerical methods. In this paper we will solve it for the first time via applying a new numerical method called the Variational Iteration Method (VIM) and the correspondent approximated solutions will be obtained for the P-M equation with regards to relevant error analysis. Through implementation of our algorithm we will access some effective results which are deserved to be considered as worthy as the other solutions issued by the other methods.

Yahya, Keyvan; Azari, Hossein; Fard, Pouyan Rafiei

2010-01-01T23:59:59.000Z

354

Seismic Fracture Characterization Methods for Enhanced Geothermal...  

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

5 4.5.2 Seismic Fracture Characterization Methods for Enhanced Geothermal Systems Presentation Number: 022 Investigator: Queen, John (Hi-Q Geophysical Inc.) Objectives: To develop...

355

Seismic Fracture Characterization Methods for Enhanced Geothermal...  

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

Seismic Fracture Characterization Methods for Enhanced Geothermal Systems Principal Investigator: John H. Queen Hi-Q Geophysical Inc. Track Name: Seismicity and Reservoir Fracture...

356

Optimization Online - Accelerated Linearized Bregman Method  

E-Print Network [OSTI]

Jun 27, 2011 ... Abstract: In this paper, we propose and analyze an accelerated linearized Bregman (ALB) method for solving the basis pursuit and related...

Bo Huang

2011-06-27T23:59:59.000Z

357

Repair Geometric Model by the Healing Method  

Science Journals Connector (OSTI)

Repairing the panel CAD geometric model is an ... and analyzed by NURBS technology. Through the pipeline method determines the matching-curves border fast...

Di Chi; Wang Weibo; Wen Lishu; Liu Zhaozheng

2012-01-01T23:59:59.000Z

358

Method of controlling fusion reaction rates  

DOE Patents [OSTI]

This invention relates to a method of controlling the reaction rates in a nuclear fusion reactor; and more particularly, to the use of polarized nuclear fuel.

Kulsrud, R.M.; Furth, H.P.; Valeo, E.J.; Goldhaber, M.

1983-05-09T23:59:59.000Z

359

A Simple Method to Construct Local Equilibrium Function for One Dimensional Lattice Boltzmann Method  

E-Print Network [OSTI]

We have developed a simple method to construct local equilibrium function for one dimensional lattice Boltzmann method (LBM). This new method can make LBM model satisfy compressible flow with a flexible specific-heat ratio. Test cases, including the one dimensional Sod flow and one dimensional Lax flow are presented. Favorable results are obtained using proposed new method, indicating that the proposed method is potentially capable of constructing of the local equilibrium function for one dimensional LBM.

Wang Peng; Zhang Shiqing

2012-10-22T23:59:59.000Z

360

Gnie mcanique Implementing the Quotient Method Controller  

E-Print Network [OSTI]

of this project was to apply this method on a Ball-on-a- Wheel system. This system consists of a ball rolling the ball-on-a-wheel system it is important to have a sufficiently fast sampling rate. Normal webcamsSECTION DE Génie mécanique Implementing the Quotient Method Controller on the Ball-on-a-Wheel

Lausanne, Ecole Polytechnique Fédérale de

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


361

Calculation methods of the nuclear characteristics  

E-Print Network [OSTI]

In the book the mathematical methods of nuclear cross sections and phases of elastic scattering, energy and characteristics of bound states in two- and three-particle nuclear systems, when the potentials of interaction contain not only central, but also tensor component, are presented. Are given the descriptions of the mathematical numerical calculation methods and computer programs in the algorithmic language "BASIC" for "Turbo Basic" of firm "Borland" for the computers of the type IBM PC AT. For the numerical solutions of the initial Schroedinger equations are used finite- difference and variational methods, and also method of Runge-Kutta with the automatic calling sequence on the assigned accuracy of results for the scattering phase shifts and binding energy. Is given the description not of the standard methods of solving the system of equations of Schroedinger to the bound states and the alternative to Schmidt's method, method of solution of the generalized matrix problem at the eigenvalues. The developed programs make it possible to determine the wave functions of relative motion of nuclear fragments, calibrated to the correct asymptotic behavior taking into account Coulomb interaction. The programs of the extraction of nuclear phases (phase shift analysis) from the differential elastic cross sections are given. The book can be used as the textbook according to the numerical mathematical methods for the students and the graduate students of the physical and mathematical specialties of higher educational institutions. This Book is written in Russian, but will perhaps present certain interest.

S. B. Dubovichenko

2010-06-25T23:59:59.000Z

362

Methods for microbial filtration of fluids  

DOE Patents [OSTI]

Novel methods for purifying contaminated subsurface groundwater are disclosed. The method is involves contacting the contaminated subsurface groundwater with methanotrophic or heterotrophic microorganisms which produce contaminant-degrading enzymes. The microorganisms are derived from surface cultures and are injected into the ground so as to act as a biofilter. The contaminants which may be treated include organic or metallic materials and radionuclides.

Carman, Margaret L. (San Ramon, CA); Jackson, Kenneth J. (San Leandro, CA); Knapp, Richard B. (Danville, CA); Knezovich, John P. (Stockton, CA); Shah, Nilesh N. (Livermore, CA); Taylor, Robert T. (Livermore, CA)

1996-01-01T23:59:59.000Z

363

Method of fabrication of anchored nanostructure materials  

SciTech Connect (OSTI)

Methods for fabricating anchored nanostructure materials are described. The methods include heating a nano-catalyst under a protective atmosphere to a temperature ranging from about 450.degree. C. to about 1500.degree. C. and contacting the heated nano-catalysts with an organic vapor to affix carbon nanostructures to the nano-catalysts and form the anchored nanostructure material.

Seals, Roland D; Menchhofer, Paul A; Howe, Jane Y; Wang, Wei

2013-11-26T23:59:59.000Z

364

Method and apparatus for synthesizing filamentary structures  

DOE Patents [OSTI]

Method and apparatus for producing filamentary structures. The structures include single-walled nanotubes. The method includes combusting hydrocarbon fuel and oxygen to establish a non-sooting flame and providing an unsupported catalyst to synthesize the filamentary structure in a post-flame region of the flame. Residence time is selected to favor filamentary structure growth.

Height, Murray J. (Somerville, MA); Howard, Jack B. (Winchester, MA); Vandersande, John B. (Newbury, MA)

2008-02-26T23:59:59.000Z

365

Method for releasing hydrogen from ammonia borane  

DOE Patents [OSTI]

A method of releasing hydrogen from ammonia borane is disclosed. The method comprises heating an aqueous ammonia borane solution to between about 80-135.degree. C. at between about 14.7 and 200 pounds per square inch absolute (psia) to release hydrogen by hydrothermolysis.

Varma, Arvind; Diwan, Moiz; Shafirovich, Evgeny; Hwang, Hyun-Tae; Al-Kukhun, Ahmad

2013-02-19T23:59:59.000Z

366

The Path Exchange Method for Hybrid LCA  

Science Journals Connector (OSTI)

The Path Exchange Method for Hybrid LCA ... A new Hybrid LCA method based on Structural Path Analysis is developed, which is less labor- and data-intensive than previous approaches. ... Hybrid techniques for Life-Cycle Assessment (LCA) provide a way of combining the accuracy of process analysis and the completeness of input?output analysis. ...

Manfred Lenzen; Robert Crawford

2009-09-24T23:59:59.000Z

367

Computational methods in wind power meteorology  

E-Print Network [OSTI]

Computational methods in wind power meteorology Bo Hoffmann Jørgensen, Søren Ott, Niels Nørmark, Jakob Mann and Jake Badger Title: Computational methods in wind power meteorology Department: Wind in connection with the project called Computational meth- ods in wind power meteorology which was supported

368

Fast neutron imaging device and method  

DOE Patents [OSTI]

A fast neutron imaging apparatus and method of constructing fast neutron radiography images, the apparatus including a neutron source and a detector that provides event-by-event acquisition of position and energy deposition, and optionally timing and pulse shape for each individual neutron event detected by the detector. The method for constructing fast neutron radiography images utilizes the apparatus of the invention.

Popov, Vladimir; Degtiarenko, Pavel; Musatov, Igor V.

2014-02-11T23:59:59.000Z

369

A COMPARISON OF SECURITY SAFEGUARD SELECTION METHODS  

E-Print Network [OSTI]

A COMPARISON OF SECURITY SAFEGUARD SELECTION METHODS Thomas Neubauer Secure Business Austria of security safeguards is often a result of current needs or influ- enced by security problems that may go decision makers with an overview of common methods for the evaluation and selection of security safeguards

370

Apparatus and method for oxidizing organic materials  

DOE Patents [OSTI]

The invention is a method and apparatus using high cerium concentration in the anolyte of an electrochemical cell to oxidize organic materials. The method and apparatus further use an ultrasonic mixer to enhance the oxidation rate of the organic material in the electrochemical cell. 6 figs.

Surma, J.E.; Bryan, G.H.; Geeting, J.G.H.; Butner, R.S.

1998-01-13T23:59:59.000Z

371

Methods for Sampling of Airborne Viruses  

Science Journals Connector (OSTI)

...1971. Effect of simulated solar radiation and sodium fluorescein...Anantharaman, and W. Tang. 2006. Development of a method for bacteria and...Johnson-Lussenburg. 1987. Development of methods to study the survival...Testing of the applicability of battery-powered portable microbial...

Daniel Verreault; Sylvain Moineau; Caroline Duchaine

2008-09-01T23:59:59.000Z

372

Advanced particulate matter control apparatus and methods  

DOE Patents [OSTI]

Apparatus and methods for collection and removal of particulate matter, including fine particulate matter, from a gas stream, comprising a unique combination of high collection efficiency and ultralow pressure drop across the filter. The apparatus and method utilize simultaneous electrostatic precipitation and membrane filtration of a particular pore size, wherein electrostatic collection and filtration occur on the same surface.

Miller, Stanley J. (Grand Forks, ND); Zhuang, Ye (Grand Forks, ND); Almlie, Jay C. (East Grand Forks, MN)

2012-01-10T23:59:59.000Z

373

Systems and methods for laser assisted sample transfer to solution for chemical analysis  

SciTech Connect (OSTI)

Systems and methods are described for laser ablation of an analyte from a specimen and capturing of the analyte in a dispensed solvent to form a testing solution. A solvent dispensing and extraction system can form a liquid microjunction with the specimen. The solvent dispensing and extraction system can include a surface sampling probe. The laser beam can be directed through the surface sampling probe. The surface sampling probe can also serve as an atomic force microscopy probe. The surface sampling probe can form a seal with the specimen. The testing solution including the analyte can then be analyzed using an analytical instrument or undergo further processing.

Van Berkel, Gary J.; Kertesz, Vilmos; Ovchinnikova, Olga S.

2014-06-03T23:59:59.000Z

374

Systems and methods for laser assisted sample transfer to solution for chemical analysis  

DOE Patents [OSTI]

Systems and methods are described for laser ablation of an analyte from a specimen and capturing of the analyte in a dispensed solvent to form a testing solution. A solvent dispensing and extraction system can form a liquid microjunction with the specimen. The solvent dispensing and extraction system can include a surface sampling probe. The laser beam can be directed through the surface sampling probe. The surface sampling probe can also serve as an atomic force microscopy probe. The surface sampling probe can form a seal with the specimen. The testing solution including the analyte can then be analyzed using an analytical instrument or undergo further processing.

Van Berkel, Gary J; Kertesz, Vilmos; Ovchinnikova, Olga S

2013-08-27T23:59:59.000Z

375

Multi-crosswell profile 3D imaging and method  

DOE Patents [OSTI]

Characterizing the value of a particular property, for example, seismic velocity, of a subsurface region of ground is described. In one aspect, the value of the particular property is represented using at least one continuous analytic function such as a Chebychev polynomial. The seismic data may include data derived from at least one crosswell dataset for the subsurface region of interest and may also include other data. In either instance, data may simultaneously be used from a first crosswell dataset in conjunction with one or more other crosswell datasets and/or with the other data. In another aspect, the value of the property is characterized in three dimensions throughout the region of interest using crosswell and/or other data. In still another aspect, crosswell datasets for highly deviated or horizontal boreholes are inherently useful. The method is performed, in part, by fitting a set of vertically spaced layer boundaries, represented by an analytic function such as a Chebychev polynomial, within and across the region encompassing the boreholes such that a series of layers is defined between the layer boundaries. Initial values of the particular property are then established between the layer boundaries and across the subterranean region using a series of continuous analytic functions. The continuous analytic functions are then adjusted to more closely match the value of the particular property across the subterranean region of ground to determine the value of the particular property for any selected point within the region.

Washbourne, John K. (Houston, TX); Rector, III, James W. (Kensington, CA); Bube, Kenneth P. (Seattle, WA)

2002-01-01T23:59:59.000Z

376

NREL: Photovoltaics Research - Photovoltaic Energy Ratings Methods  

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

Photovoltaic Energy Ratings Methods Validation Photovoltaic Energy Ratings Methods Validation The Photovoltaic (PV) Engineering group at NREL validates energy ratings methods by standards committees to establish an energy rating methodology. We are evaluating techniques to account for the impact on PV performance from variations in the spectral distribution of solar radiation. Two types of methods were evaluated for correcting the short-circuit current of PV modules for variations in the solar spectrum under clear skies: (1) empirical relationships based on air mass, and (2) use of spectral irradiance models and PV module spectral response data. Methods of the first type were the Sandia National Laboratories absolute air-mass function, or f(AMa), and the CREST air-mass function, or f(AM). The second

377

Method Of Transferring Strained Semiconductor Structures  

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

Of Transferring Strained Semiconductor Structures Of Transferring Strained Semiconductor Structures Method Of Transferring Strained Semiconductor Structures The transfer of strained semiconductor layers from one substrate to another substrate involves depositing a multilayer structure on a substrate having surface contaminants. June 25, 2013 Method Of Transferring Strained Semiconductor Structures The transfer of strained semiconductor layers from one substrate to another substrate involves depositing a multilayer structure on a substrate having surface contaminants. Available for thumbnail of Feynman Center (505) 665-9090 Email Method Of Transferring Strained Semiconductor Structures The transfer of strained semiconductor layers from one substrate to another substrate involves depositing a multilayer structure on a substrate having

378

Antidegredation Implementation Methods (Mississippi) | Department of Energy  

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

Antidegredation Implementation Methods (Mississippi) Antidegredation Implementation Methods (Mississippi) Antidegredation Implementation Methods (Mississippi) < Back Eligibility Agricultural Commercial Construction Developer Fed. Government Fuel Distributor General Public/Consumer Industrial Installer/Contractor Institutional Investor-Owned Utility Local Government Low-Income Residential Multi-Family Residential Municipal/Public Utility Nonprofit Residential Retail Supplier Rural Electric Cooperative Schools State/Provincial Govt Systems Integrator Transportation Tribal Government Utility Savings Category Alternative Fuel Vehicles Hydrogen & Fuel Cells Buying & Making Electricity Water Home Weatherization Solar Wind Program Info State Mississippi Program Type Environmental Regulations Siting and Permitting Provider Mississippi Department of Environmental Quality

379

Apparatus and method for measuring viscosity  

DOE Patents [OSTI]

The present invention is directed to an apparatus and method for measuring the viscosity of a fluid. This apparatus and method is particularly useful for the measurement of the viscosity of a liquid in a harsh environment characterized by high temperature and the presence of corrosive or deleterious gases and vapors which adversely affect conventional ball or roller bearings. The apparatus and method of the present invention employ one or more flexural or torsional bearings to suspend a bob capable of limited angular motion within a rotatable sleeve suspended from a stationary frame. 7 figs.

Murphy, R.J. Jr.

1986-02-25T23:59:59.000Z

380

Apparatus and method for measuring viscosity  

DOE Patents [OSTI]

The present invention is directed to an apparatus and method for measuring the viscosity of a fluid. This apparatus and method is particularly useful for the measurement of the viscosity of a liquid in a harsh environment characterized by high temperature and the presence of corrosive or deleterious gases and vapors which adversely affect conventional ball or roller bearings. The apparatus and method of the present invention employ one or more flexural or torsional bearings to suspend a bob capable of limited angular motion within a rotatable sleeve suspended from a stationary frame.

Murphy, Jr., Robert J. (Bellaire, TX)

1986-01-01T23:59:59.000Z

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


381

Evaluatoni of Automated Utility Bill Calibration Methods  

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

NREL is a national laboratory of the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, operated by the Alliance for Sustainable Energy, LLC. Evaluation of Automated Utility Bill Calibration Methods BA Technical Update Meeting Ben Polly, Joe Robertson 04/30/13 Utility Bill Calibration * "Calibrate" or "true-up" building energy models to utility bill data to increase the accuracy of retrofit savings predictions * Calibration methods typically involve adjusting input parameters * Predict retrofit savings using the adjusted (calibrated) model 2 Background: BESTEST-EX * BESTEST-EX is a suite for testing calibration methods and retrofit savings predictions associated with audit software * Field trials showed that:

382

Apparatuses and methods for generating electric fields  

DOE Patents [OSTI]

Apparatuses and methods relating to generating an electric field are disclosed. An electric field generator may include a semiconductive material configured in a physical shape substantially different from a shape of an electric field to be generated thereby. The electric field is generated when a voltage drop exists across the semiconductive material. A method for generating an electric field may include applying a voltage to a shaped semiconductive material to generate a complex, substantially nonlinear electric field. The shape of the complex, substantially nonlinear electric field may be configured for directing charged particles to a desired location. Other apparatuses and methods are disclosed.

Scott, Jill R; McJunkin, Timothy R; Tremblay, Paul L

2013-08-06T23:59:59.000Z

383

Phosphorescent compositions, methods of making the compositions, and methods of using the compositions  

SciTech Connect (OSTI)

Compositions, methods of making compositions, materials including compositions, crayons including compositions, paint including compositions, ink including compositions, waxes including compositions, polymers including compositions, vesicles including the compositions, methods of making each, and the like are disclosed.

Jia, Weiyi; Wang, Xiaojun; Jia, George D.; Lewis, Linda; Yen, Laurel C.

2014-06-24T23:59:59.000Z

384

Cyanide Assay: Statistical Comparison of a New Gas Chromatographic Calibration Method versus the Classical Spectrophotometric Method  

Science Journals Connector (OSTI)

......spectrophotometric method (VIS) is linear from...Figure1. Chromatogramof hydrogen cyanide(HCN). o...HCY-a~5 Scheme1. Hydrogen cyanide production from ethyl thiocyano...coefficientfor both methods exceeded0.99, which......

Z.L. Cardeal; J.P. Gallet; A. Astier; D. Pradeau

1995-01-01T23:59:59.000Z

385

Method and means for dynamic measurement of rates of adsorption from solutions  

DOE Patents [OSTI]

A method and apparatus are described for the dynamic measurement of rates of absorption from solutions. The method has the advantage of avoiding the use of solvent normally used to establish a baseline. The method involves pre-evacuating the adsorbent contained in an adsorbent cell and thereafter rapidly contacting the adsorbent with analytical solution, all without prior exposure of adsorbent to pure solvent. The result is a sharp characteristic adsorption line. 5 figs.

Slomka, B.J.; Buttermore, W.H.

1992-05-05T23:59:59.000Z

386

Method For Chemical Sensing Using A Microfabricated Teeter-Totter Resonator  

DOE Patents [OSTI]

A method for sensing a chemical analyte in a fluid stream comprises providing a microfabricated teeter-totter resonator that relies upon a Lorentz force to cause oscillation in a paddle, applying a static magnetic field substantially aligned in-plane with the paddle, energizing a current conductor line on a surface of the paddle with an alternating electrical current to generate the Lorentz force, exposing the resonator to the analyte, and detecting the response of the oscillatory motion of the paddle to the chemical analyte. Preferably, a chemically sensitive coating is disposed on at least one surface of the paddle to enhance the sorption of the analyte by the paddle. The concentration of the analyte in a fluid stream can be determined by measuring the change in the resonant frequency or phase of the teeter-totter resonator as the chemical analyte is added to or removed from the paddle.

Adkins, Douglas Ray (Albuquerque, NM); Heller, Edwin J. (Albuquerque, NM); Shul, Randy J. (Albuquerque, NM)

2004-11-30T23:59:59.000Z

387

Earth analysis methods, subsurface feature detection methods, earth analysis devices, and articles of manufacture  

DOE Patents [OSTI]

Earth analysis methods, subsurface feature detection methods, earth analysis devices, and articles of manufacture are described. According to one embodiment, an earth analysis method includes engaging a device with the earth, analyzing the earth in a single substantially lineal direction using the device during the engaging, and providing information regarding a subsurface feature of the earth using the analysis.

West, Phillip B. (Idaho Falls, ID); Novascone, Stephen R. (Idaho Falls, ID); Wright, Jerry P. (Idaho Falls, ID)

2012-05-29T23:59:59.000Z

388

Earth analysis methods, subsurface feature detection methods, earth analysis devices, and articles of manufacture  

DOE Patents [OSTI]

Earth analysis methods, subsurface feature detection methods, earth analysis devices, and articles of manufacture are described. According to one embodiment, an earth analysis method includes engaging a device with the earth, analyzing the earth in a single substantially lineal direction using the device during the engaging, and providing information regarding a subsurface feature of the earth using the analysis.

West, Phillip B. (Idaho Falls, ID); Novascone, Stephen R. (Idaho Falls, ID); Wright, Jerry P. (Idaho Falls, ID)

2011-09-27T23:59:59.000Z

389

Advanced Methods for Manufacturing | Department of Energy  

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

Methods for Manufacturing Methods for Manufacturing Advanced Methods for Manufacturing The overall purpose of the AMM subprogram is to accelerate innovations that reduce the cost and schedule of constructing new nuclear plants and make fabrication of nuclear power plant components faster, cheaper, and more reliable. Based on past industry work and new stakeholder input, this effort will focus on opportunities that provide simplified, standardized, and labor-saving outcomes for manufacturing, fabrication, assembly, and construction processes (both technologies and methods) and show the most promise in shortening timelines and lowering overall deployment costs. The innovations selected for further development under the AMM program will collectively provide a major means of moving the U.S. nuclear industry from

390

Method for preparation of single chain antibodies  

DOE Patents [OSTI]

This invention provides a method for identifying cells expressing a target single chain antibody (scFv) directed against a target antigen from a collection of cells that includes cells that do not express the target scFv, comprising the step of combining the collection of cells with an anti-idiotype directed to an antibody specific for the target antigen and detecting interaction, if any, of the anti-idiotype with the cells, wherein the occurrence of an interaction identifies the cell as one which expresses the target scFv. This invention also provides a method for making a single chain antibody (scFv) directed against an antigen, wherein the selection of clones is made based upon interaction of those clones with an appropriate anti-idiotype, and heretofore inaccessible scFv so made. This invention provides the above methods or any combination thereof. Finally, this invention provides various uses of these methods.

Cheung, Nai-Kong V. (New York, NY); Guo, Hong-fen (New York, NY)

2012-04-03T23:59:59.000Z

391

A method for characterizing carbon nanotubes  

Science Journals Connector (OSTI)

......Letter A method for characterizing carbon nanotubes Toshie Yaguchi 1 Takahiro Sato 1 Takeo...spectroscopy of a multi-walled carbon nanotube (MWCNT) at elevated temperatures were...spectroscopy|multi&hyphen|walled carbon nanotube|specimen&hyphen|heating holder......

Toshie Yaguchi; Takahiro Sato; Takeo Kamino; Yoshifumi Taniguchi; Kenichi Motomiya; Kazuyuki Tohji; Atsuo Kasuya

2001-07-01T23:59:59.000Z

392

Project evaluation : a practical asset pricing method  

E-Print Network [OSTI]

This paper presents a practical approach to project evaluation using techniques of modern financial economics, with a sample application to oil development under a complex tax system. The method overcomes shortcomings of ...

Jacoby, Henry D.

1992-01-01T23:59:59.000Z

393

INTERIOR-POINT METHODS FOR NONCONVEX NONLINEAR ...  

E-Print Network [OSTI]

Feb 16, 2012 ... in [20] using a multi-step approach. .... gives us a means of building a solution method for (1), explicit determination of ...... The family curly and.

2012-02-16T23:59:59.000Z

394

Approximate Method for the Free Energy  

Science Journals Connector (OSTI)

......Articles Approximate Method for the Free Energy Akihide Oguchi Department of Physics...a lower bound of the Helmholtz free energy in the statistical physics. A new approximate expression of the free energy is obtained. This approximate......

Akihide Oguchi

1976-11-01T23:59:59.000Z

395

Modulation Methods and Slow Molecular Rotations  

Science Journals Connector (OSTI)

The application of optical methods used with triplet or other long-lived probes for measuring slow (i.e. usec-msec) Brownian rotational diffusion of membrane proteins...et al., 1981; Garland & Johnson, 1985). W...

P. B. Garland; J. J. Birmingham

1986-01-01T23:59:59.000Z

396

Multidisciplinary Optimization Methods for Preliminary Design  

Science Journals Connector (OSTI)

An overview of multidisciplinary optimization (MDO) methodology and two applications of this methodology to the preliminary design phase are presented. These applications are being undertaken to improve, develop, validate and demonstrate MDO methods. ...

Korte J. J.; Weston R. P.; Zang T. A.

1997-04-01T23:59:59.000Z

397

Boundary conditions for the lattice Boltzmann method.  

E-Print Network [OSTI]

?? Based on the no-slip boundary condition for walls at rest for the lattice Boltzmann Bathnagar-Gross-Krook method by J.C.G. Verschaeve [Phys. Rev. 80,036703 (2009)], a (more)

le coupanec, erwan

2010-01-01T23:59:59.000Z

398

Carbon nanotubes : a study on assembly methods  

E-Print Network [OSTI]

The urgent stipulation is to manufacture CNTs of desired properties and dimensions. The heart of this yearning lies in understanding the growth and assembly methods of CNTs, which are not yet clear. In this study, hence, ...

Quiones, Lisandro E. (Quiones Ortiz)

2008-01-01T23:59:59.000Z

399

Alignment method for solar collector arrays  

DOE Patents [OSTI]

The present invention is directed to an improved method for establishing camera fixture location for aligning mirrors on a solar collector array (SCA) comprising multiple mirror modules. The method aligns the mirrors on a module by comparing the location of the receiver image in photographs with the predicted theoretical receiver image location. To accurately align an entire SCA, a common reference is used for all of the individual module images within the SCA. The improved method can use relative pixel location information in digital photographs along with alignment fixture inclinometer data to calculate relative locations of the fixture between modules. The absolute locations are determined by minimizing alignment asymmetry for the SCA. The method inherently aligns all of the mirrors in an SCA to the receiver, even with receiver position and module-to-module alignment errors.

Driver, Jr., Richard B

2012-10-23T23:59:59.000Z

400

Standard Test Methods for Textile Composites  

Science Journals Connector (OSTI)

Standard testing methods for composite laminates reinforced with continuous networks of braided, woven, or stitched fibers have been evaluated. The microstructure of these "textile" composite materials differs significantly from that of tape laminates. ...

Masters J. E.; Portanova M. A.

1996-09-01T23:59:59.000Z

Note: This page contains sample records for the topic "method analytical method" 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

Microfluidic microarray systems and methods thereof  

DOE Patents [OSTI]

Disclosed are systems that include a manifold in fluid communication with a microfluidic chip having a microarray, an illuminator, and a detector in optical communication with the microarray. Methods for using these systems for biological detection are also disclosed.

West, Jay A. A. (Castro Valley, CA); Hukari, Kyle W. (San Ramon, CA); Hux, Gary A. (Tracy, CA)

2009-04-28T23:59:59.000Z

402

Method for introducing unidirectional nested deletions  

DOE Patents [OSTI]

Disclosed is a method for the introduction of unidirectional deletions in a cloned DNA segment in the context of a cloning vector which contains an f1 endonuclease recognition sequence adjacent to the insertion site of the DNA segment. Also disclosed is a method for producing single-stranded DNA probes utilizing the same cloning vector. An optimal vector, PZIP is described. Methods for introducing unidirectional deletions into a terminal location of a cloned DNA sequence which is inserted into the vector of the present invention are also disclosed. These methods are useful for introducing deletions into either or both ends of a cloned DNA insert, for high throughput sequencing of any DNA of interest.

Dunn, John J. (Bellport, NY); Quesada, Mark A. (Horseheads, NY); Randesi, Matthew (New York, NY)

2001-01-01T23:59:59.000Z

403

Bayesian approach applied to the Rietveld method  

Science Journals Connector (OSTI)

An innovative combination of the Rietveld method and Bayes probability statistics is presented. The efficiency of the new approach is illustrated by high-temperature diffraction studies of certain phase transformation reactions in steel samples.

Wiessner, M.

2014-10-17T23:59:59.000Z

404

CONVERGENCE OF THE GRIDDY GIBBS SAMPLING METHOD ...  

E-Print Network [OSTI]

[2] Jun S. Liu et. al., The Multiple-Try Method and Local Optimization in Metropolis ... [23] Lipniacki T., Hat B., Faeder J.R., Hlavacek W.S, Journal of Theoretical...

2013-08-17T23:59:59.000Z

405

Composite Proximal Bundle Method - Optimization Online  

E-Print Network [OSTI]

[Ous00], [MS05], [Nes07], and the V-space identification method in [DSS09]. ...... bulk of BFGS too much (at least when compared to applying directly CBun).

2011-04-26T23:59:59.000Z

406

Alternate cleaning methods for LCCAs. Final report  

SciTech Connect (OSTI)

The purpose of this project was to evaluate DI water followed by isopropyl alcohol (IPA) cleaning and no cleaning of leadless chip carriers (LCCs). Both environmentally safe methods were to be tested against the current chlorofluorocarbon (CFC) material cleaning baseline. Several experiments were run to compare production and electrical yields of LCCs cleaned by all three methods. The critical process steps most affected by cleaning were wire bonding, sealing, particle induced noise detection (PIND), moisture content, and electrical. Yields for the experimental lots cleaned by CFC, DI water plus IPA, and no cleaning were 56%, 72%, and 75%, respectively. The overall results indicated that vapor degreasing/ultrasonic cleaning in CFCs could be replaced by the aqueous method. No cleaning could also be considered if an effective dry method of particle removal could be developed.

Adams, B.E.

1993-04-01T23:59:59.000Z

407

Method of vibration measurements in heterodyne interferometry  

Science Journals Connector (OSTI)

A novel method is presented for determining the vibration amplitude of a vibrating fringe pattern in the presence of a low-frequency heterodyne phase shift. It consists of counting the...

Stetson, Karl A

1982-01-01T23:59:59.000Z

408

Fast Methods for Fast Stephen Wandzura  

E-Print Network [OSTI]

CONDITIONED GOD DID NOT INVENT POLYNOMIALS, HE INVENTED EXPONENTIALS Any deviation will be regarded, Particle in Cell, . . . All amount to smart SVDs (often aided with FFTs). #12;The Time for Slow Methods Has

Maryland at College Park, University of

409

Prospecting for geothermal energy by geophysical methods  

Science Journals Connector (OSTI)

Types of geothermal deposit are indicated and prospecting methods are described. These include aerial IR surveys, geoelectrical investigations, geothermal measurements, explosion seismics, microearthquakes, and ground-noise surveys, gravity studies and airborne magnetic surveys and geomagnetics

R. Haenel

1977-01-01T23:59:59.000Z

410

A quasi-Newton proximal splitting method  

E-Print Network [OSTI]

Jun 20, 2012 ... These methods have seen success, but are not as efficient or ..... If (y, ?) is a primal-dual solution to (14), the KKT conditions must be satisfied:.

2012-06-20T23:59:59.000Z

411

Fast Methods for Bimolecular Charge Optimization  

E-Print Network [OSTI]

We report a Hessian-implicit optimization method to quickly solve the charge optimization problem over protein molecules: given a ligand and its complex with a receptor, determine the ligand charge distribution that minimizes ...

Bardhan, Jaydeep P.

412

Approximate Method for the Free Energy  

Science Journals Connector (OSTI)

......6 (1984) pp. 1413-1415 New Variational Method for the Free Energy Akihide Oguchi Progress of Theoretical...Variational Principles for the Free Energy Joachim Stolze References 1...Theory of Magnetism (1967) New York: Plenum Press. 175. 5) Weiss......

Akihide Oguchi

1976-11-01T23:59:59.000Z

413

Method for making spherical binderless pellets  

DOE Patents [OSTI]

A method for making spherical binderless pellets using a rotating drum mixer whereby at least a portion of the particles comprising the pellets is comprised of coking coal particles.

Grubbs, Donald K. (Rector, PA); Kochanowski, Andrew T. (Spring Church, PA)

1983-01-01T23:59:59.000Z

414

Methods of Energy Auditing for Dwellings  

Science Journals Connector (OSTI)

Basic methods are given for energy auditing on dwellings. The heat-transfer resistances of ... structures are basic characteristics to be determined in energy auditing for dwellings and industrial buildings. Deta...

N. I. Khanov; L. A. Semenov; Yu. A. Chistyakov

2002-06-01T23:59:59.000Z

415

Research of the Heliostat Cleaning Method  

Science Journals Connector (OSTI)

Heliostat is the core component of Solar Power ... the efficiency of whole system. Because the heliostats run outside, and are discovered in the ... , and researched selecting availably cleaning method of heliostat

Xiliang Zhang; Xiaobin Liu; Zhifeng Wang

2009-01-01T23:59:59.000Z

416

Review of Gas Transmission Pipeline Repair Methods  

Science Journals Connector (OSTI)

Repair methods are key operations for the integrity management of pipelines. The parameters guiding the repair decision are briefly reminded. A nonexhaustive external and internal repair techniques are described,...

Remi Batisse

2008-01-01T23:59:59.000Z

417

Methods & Practices Handbook | Department of Energy  

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

Methods & Practices Handbook Methods & Practices Handbook Methods & Practices Handbook Contents Purpose Background Navigation Table Life Cycle Phases Scope and Applicability Integrating Safety into Activities Purpose What is Deactivation? Deactivation is the process of placing a radiologically or chemically hazardous facility into a safe and stable condition for interim storage prior to decommissioning and dismantlement. The goal of deactivation is to reduce risks to the workers, public and environment, and limit the long-term cost of surveillance and maintenance. About This Site The purpose of this handbook/WEB site is to make the deactivation experience readily available across the DOE complex. The practices, methods, and examples described are those previously and successfully used

418

X-Ray Nanoimaging: Instruments and Methods  

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

X-Ray Nanoimaging: Instruments and Methods To be held as part of SPIE. http:spie.orgOP318 August 28-29, 2013; San Diego, California, USA...

419

High-temperature thermocouples and related methods  

DOE Patents [OSTI]

A high-temperature thermocouple and methods for fabricating a thermocouple capable of long-term operation in high-temperature, hostile environments without significant signal degradation or shortened thermocouple lifetime due to heat induced brittleness.

Rempe, Joy L. (Idaho Falls, ID); Knudson, Darrell L. (Firth, ID); Condie, Keith G. (Idaho Falls, ID); Wilkins, S. Curt (Idaho Falls, ID)

2011-01-18T23:59:59.000Z

420

Enabling Computational Methods for Offshore Wind Turbines  

Science Journals Connector (OSTI)

In this book chapter we give an overview of our recent work in computational methods for geometry modeling, fluid mechanics, structural mechanics, and fluidstructure interaction that enable high-fidelity simulat...

Y. Bazilevs; M.-C. Hsu; I. Akkerman

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "method analytical method" 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

Continuous Optimization Methods for Structure Alignments  

E-Print Network [OSTI]

Jan 30, 2006 ... speed. Additional experiments on binding site identification, ligand and cofactor alignments .... For measuring similarity between two structures one needs to translate and rotate ... method, it sheds light on complexity issues.

2006-01-30T23:59:59.000Z

422

Colloid labelled with radionuclide and method  

DOE Patents [OSTI]

A ferric hydroxide colloid having an alpha-emitting radionuclide essentially on the outer surfaces and a method of forming same. The method includes oxidizing a ferrous hydroxide to ferric hydroxide in the presence of a preselected radionuclide to form a colloid having the radionuclide on the outer surface thereof, and thereafter washing the colloid, and suspending the washed colloid in a suitable solution. The labelled colloid is useful in cancer therapy and for the treatment of inflamed joints.

Atcher, Robert W. (Chicago, IL); Hines, John J. (GlenEllyn, IL)

1990-01-01T23:59:59.000Z

423

Method of making colloid labeled with radionuclide  

DOE Patents [OSTI]

A ferric hydroxide colloid having an alpha-emitting radionuclide essentially on the outer surfaces and a method of forming same. The method includes oxidizing a ferrous hydroxide to ferric hydroxide in the presence of a preselected radionuclide to form a colloid having the radionuclide on the outer surface thereof, and thereafter washing the colloid, and suspending the washed colloid in a suitable solution. The labelled colloid is useful in cancer therapy and for the treatment of inflamed joints.

Atcher, Robert W. (Chicago, IL); Hines, John J. (Glen Ellyn, IL)

1991-01-01T23:59:59.000Z

424

Colloid labelled with radionuclide and method  

DOE Patents [OSTI]

A ferric hydroxide colloid having an alpha-emitting radionuclide essentially on the outer surfaces and a method of forming same. The method includes oxidizing a ferrous hydroxide to ferric hydroxide in the presence of a preselected radionuclide to form a colloid having the radionuclide on the outer surface thereof, and thereafter washing the colloid, and suspending the washed colloid in a suitable solution. The labelled colloid is useful in cancer therapy and for the treatment of inflamed joints. No Drawings

Atcher, R.W.; Hines, J.J.

1990-11-13T23:59:59.000Z

425

Method for fabricating apatite crystals and ceramics  

DOE Patents [OSTI]

The present invention provides a method of crystallizing Yb:C-FAP [Yb.sup.3+:Ca.sub.5(PO.sub.4).sub.3F], by dissolving the Yb:C-FAP in an acidic solution, following by neutralizing the solution. The present invention also provides a method of forming crystalline Yb:C-FAP by dissolving the component ingredients in an acidic solution, followed by forming a supersaturated solution.

Soules, Thomas F.; Schaffers, Kathleen I.; Tassano, Jr., John B.; Hollingsworth, Joel P.

2013-09-10T23:59:59.000Z

426

Computer methods for structural neurological systems analysis  

E-Print Network [OSTI]

COMPUTER METHODS FOR STRUCTURAL NEUROLOGICAL SYSTEMS ANALYSIS A Thesis by ROBERTO EUGENIO LOPEZ Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER... OF SCIENCE May 1991 Major Subject: Computer Science COMPUTER METHODS FOR STRUCTURAL NEUROLOGICAL SYSTEMS ANALYSIS A Thesis by ROBERTO EUGENIO LOPEZ Approved as to style and content by: Amitabha Mu et)ee (Chair of Committee) Donald Friesen (Member...

Lo?pez, Roberto Eugenio

2012-06-07T23:59:59.000Z

427

Encapsulation methods for organic electrical devices  

DOE Patents [OSTI]

The disclosure provides methods and materials suitable for use as encapsulation barriers in electronic devices. In one embodiment, for example, there is provided an electroluminescent device or other electronic device encapsulated by alternating layers of a silicon-containing bonding material and a ceramic material. The encapsulation methods provide, for example, electronic devices with increased stability and shelf-life. The invention is useful, for example, in the field of microelectronic devices.

Blum, Yigal D.; Chu, William Siu-Keung; MacQueen, David Brent; Shi, Yijian

2013-06-18T23:59:59.000Z

428

Power generation method including membrane separation  

DOE Patents [OSTI]

A method for generating electric power, such as at, or close to, natural gas fields. The method includes conditioning natural gas containing C.sub.3+ hydrocarbons and/or acid gas by means of a membrane separation step. This step creates a leaner, sweeter, drier gas, which is then used as combustion fuel to run a turbine, which is in turn used for power generation.

Lokhandwala, Kaaeid A. (Union City, CA)

2000-01-01T23:59:59.000Z

429

Compositions and methods for improved plant feedstock  

DOE Patents [OSTI]

The invention provides methods for modifying lignin content and composition in plants and achieving associated benefits therefrom involving altered expression of newly discovered MYB4 transcription factors. Nucleic acid constructs for modifying MYB4 transcription factor expression are described. By over-expressing the identified MYB4 transcription factors, for example, an accompanying decrease in lignin content may be achieved. Plants are provided by the invention comprising such modifications, as are methods for their preparation and use.

Shen, Hui; Chen, Fang; Dixon, Richard A

2014-12-02T23:59:59.000Z

430

A computer method for perspective drawing  

E-Print Network [OSTI]

A COMPUTER METHOD FOR PERSPECTIVE DRAWING A Thesis By' HERBERT RAY HAYNES Submitted to the Graduate College of' the Texas A8cM University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE August 1966 Major... Subject: Computer Science A COMPUTER METHOD FOR PERSPECTIVE DRAWING A Thesis HERBERT RAY HAYNES Approved as to style and content by: Chairman oi' Committee M er Member August 1966 ACKNOWLEDGEMENTS The assistance of the following members of my...

Haynes, Herbert Ray

2012-06-07T23:59:59.000Z

431

Agouti polynucleotide compositions and methods of use  

DOE Patents [OSTI]

Disclosed are methods and compositions comprising novel agouti polypeptides and the polynucleotides which encode them. Also disclosed are DNA segments encoding these proteins derived from human and murine cell lines, and the use of these polynucleotides and polypeptides in a variety of diagnostic and therapeutic applications. Methods, compositions, kits, and devices are also provided for identifying compounds which are inhibitors of agouti activity, and for altering fatty acid synthetase activity and intracellular calcium levels in transformed cells.

Woychik, Richard P. (Orinda, CA); Bultman, Scott J. (Lakewood, OH); Michaud, Edward J. (Kingston, TN)

2003-02-04T23:59:59.000Z

432

Electrical condition monitoring method for polymers  

DOE Patents [OSTI]

An electrical condition monitoring method utilizes measurement of electrical resistivity of an age sensor made of a conductive matrix or composite disposed in a polymeric structure such as an electrical cable. The conductive matrix comprises a base polymer and conductive filler. The method includes communicating the resistivity to a measuring instrument and correlating resistivity of the conductive matrix of the polymeric structure with resistivity of an accelerated-aged conductive composite.

Watkins, Jr., Kenneth S. (Dahlonega, GA); Morris, Shelby J. (Hampton, VA); Masakowski, Daniel D. (Worcester, MA); Wong, Ching Ping (Duluth, GA); Luo, Shijian (Boise, ID)

2008-08-19T23:59:59.000Z

433

Method and apparatus for producing cryogenic targets  

DOE Patents [OSTI]

An improved method and apparatus are given for producing cryogenic inertially driven fusion targets in the fast isothermal freezing (FIF) method. Improved coupling efficiency and greater availability of volume near the target for diagnostic purposes and for fusion driver beam propagation result. Other embodiments include a new electrical switch and a new explosive detonator, all embodiments making use of a purposeful heating by means of optical fibers.

Murphy, James T. (Los Alamos, NM); Miller, John R. (Penfield, NY)

1984-01-01T23:59:59.000Z

434

Method of making straight fuel cell tubes  

DOE Patents [OSTI]

A method and an apparatus for making straight fuel cell tubes are disclosed. Extruded tubes comprising powders of fuel cell material and a solvent are dried by rotating the extruded tubes. The rotation process provides uniform circumferential drying which results in uniform linear shrinkage of the tubes. The resultant dried tubes are very straight, thereby eliminating subsequent straightening steps required with conventional processes. The method is particularly useful for forming inner air electrode tubes of solid oxide fuel cells.

Borglum, Brian P. (Edgewood, PA)

2001-01-01T23:59:59.000Z

435

Method of ultrasonic measurement of texture  

DOE Patents [OSTI]

A method for measuring texture of metal plates or sheets using non-destructive ultrasonic investigation includes measuring the velocity of ultrasonic energy waves in lower order plate modes in one or more directions, and measuring phase velocity dispersion of higher order modes of the plate or sheet if needed. Texture or preferred grain orientation can be derived from these measurements with improves reliability and accuracy. The method can be utilized in production on moving metal plate or sheet. 9 figures.

Thompson, R.B.; Smith, J.F.; Lee, S.S.; Taejon Ch'ungmam; Yan Li.

1993-10-12T23:59:59.000Z

436

Method of ultrasonic measurement of texture  

DOE Patents [OSTI]

A method for measuring texture of metal plates or sheets using non-destructive ultrasonic investigation includes measuring the velocity of ultrasonic energy waves in lower order plate modes in one or more directions, and measuring phase velocity dispersion of higher order modes of the plate or sheet if needed. Texture or preferred grain orientation can be derived from these measurements with improves reliability and accuracy. The method can be utilized in production on moving metal plate or sheet.

Thompson, R. Bruce (Ames, IA); Smith, John F. (Ames, IA); Lee, Seung S. (Taejon Ch'ungmam, KR); Li, Yan (Ames, IA)

1993-10-12T23:59:59.000Z

437

Method for the photocatalytic conversion of methane  

DOE Patents [OSTI]

A method for converting methane to methanol is provided comprising subjecting the methane to visible light in the presence of a catalyst and an electron transfer agent. Another embodiment of the invention provides for a method for reacting methane and water to produce methanol and hydrogen comprising preparing a fluid containing methane, an electron transfer agent and a photolysis catalyst, and subjecting said fluid to visible light for an effective period of time. 3 figs.

Noceti, R.P.; Taylor, C.E.; D`Este, J.R.

1998-02-24T23:59:59.000Z

438

The piezoelectric sorption technique: a practical method  

E-Print Network [OSTI]

THE PIEZOELECTRIC SORPTION TECHNIQUE, A PRACTICAL METHOD A Thesis by EUGENE CHARLES FLIPSE Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE August 1983...) D. Holland (Head of Department) August 1983 ABSTRACT The Piezoelectric Sorption Technique, A Practical Method. (August 1983) Eugene Charles Flipse, B. A. , Virginia Polytechnic Institute and State University Chairman of Advisory Committee: Dr...

Flipse, Eugene Charles

2012-06-07T23:59:59.000Z

439

Comparison of Different Methods of Harvesting Cotton.  

E-Print Network [OSTI]

- - TEXAS AGRICULTURAL EXPERIMENT STATION R. D. LEWIS, Director College Station. Texas BULLETIN NO. 683 OCTOBER, 1946 COMPARISON OF DIFFERENT METHODS OF HARVESTING COTTON Division of Agricultural Engineering . and Division of Agronomy... on the rougher methods of harvesting cotton, such as hand-snapping and machine harvesting both with the picker type and the stripper type mechanical harvesters. This n-as largely because the lint from the roughly harvested cottons contained more foreign...

Smith, H. P. (Harris Pearson)

1946-01-01T23:59:59.000Z

440

About the Uniform Methods Project | Department of Energy  

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

Methods Project The Uniform Methods Project is developing Methods for Determining Energy Efficiency Savings for Specific Measures through collaboration with energy efficiency...

Note: This page contains sample records for the topic "method analytical method" 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

Restoration Monitoring-A Simple Photo Monitoring Method | Department...  

Energy Savers [EERE]

Restoration Monitoring-A Simple Photo Monitoring Method Restoration Monitoring-A Simple Photo Monitoring Method Restoration Monitoring-A Simple Photo Monitoring Method Restoration...

442

Two standard methods for solving the Ito equation  

E-Print Network [OSTI]

In this paper we show some exact solutions for the Ito equation. These solutions are obtained by two methods: the tanh method and the projective Riccati equation method.

Alvaro Salas Salas

2008-05-21T23:59:59.000Z

443

Numerical method for shear bands in ductile metal with inclusions  

SciTech Connect (OSTI)

A numerical method for mesoscale simulation of high strain-rate loading of ductile metal containing inclusions is described. Because of small-scale inhomogeneities, such a composite material is prone to localized shear deformation (adiabatic shear bands). The modeling framework is the Generalized Method of Cells of Paley and Aboudi [Mech. Materials, vol. 14, pp. /27-139, 1992], which ensures that the micromechanical response of the material is reflected in the behavior of the composite at the mesoscale. To calculate the effective plastic strain rate when shear bands are present, the analytic and numerical analysis of shear bands by Glimm, Plohr, and Sharp [Mech. Materials, vol. 24, pp. 31-41, 1996] is adapted and extended.

Plohr, Jee Yeon N [Los Alamos National Laboratory; Plohr, Bradley J [Los Alamos National Laboratory

2010-01-01T23:59:59.000Z

444

RAPID SEPARATION METHOD FOR ACTINIDES IN EMERGENCY AIR FILTER SAMPLES  

SciTech Connect (OSTI)

A new rapid method for the determination of actinides and strontium in air filter samples has been developed at the Savannah River Site Environmental Lab (Aiken, SC, USA) that can be used in emergency response situations. The actinides and strontium in air filter method utilizes a rapid acid digestion method and a streamlined column separation process with stacked TEVA, TRU and Sr Resin cartridges. Vacuum box technology and rapid flow rates are used to reduce analytical time. Alpha emitters are prepared using cerium fluoride microprecipitation for counting by alpha spectrometry. The purified {sup 90}Sr fractions are mounted directly on planchets and counted by gas flow proportional counting. The method showed high chemical recoveries and effective removal of interferences. This new procedure was applied to emergency air filter samples received in the NRIP Emergency Response exercise administered by the National Institute for Standards and Technology (NIST) in April, 2009. The actinide and {sup 90}Sr in air filter results were reported in {approx}4 hours with excellent quality.

Maxwell, S.; Noyes, G.; Culligan, B.

2010-02-03T23:59:59.000Z

445

Method Of Signal Amplification In Multi-Chromophore Luminescence Sensors  

DOE Patents [OSTI]

A fluorescence-based method for highly sensitive and selective detection of analyte molecules is proposed. The method employs the energy transfer between two or more fluorescent chromophores in a carefully selected polymer matrix. In one preferred embodiment, signal amplification has been achieved in the fluorescent sensing of dimethyl methylphosphonate (DMMP) using two dyes, 3-aminofluoranthene (AM) and Nile Red (NR), in a hydrogen bond acidic polymer matrix. The selected polymer matrix quenches the fluorescence of both dyes and shifts dye emission and absorption spectra relative to more inert matrices. Upon DMMP sorption, the AM fluorescence shifts to the red at the same time the NR absorption shifts to the blue, resulting in better band overlap and increased energy transfer between chromophores. In another preferred embodiment, the sensitive material is incorporated into an optical fiber system enabling efficient excitation of the dye and collecting the fluorescent signal form the sensitive material on the remote end of the system. The proposed method can be applied to multichromophore luminescence sensor systems incorporating N-chromophores leading to N-fold signal amplification and improved selectivity. The method can be used in all applications where highly sensitive detection of basic gases, such as dimethyl methylphosphonate (DMMP), Sarin, Soman and other chemical warfare agents having basic properties, is required, including environmental monitoring, chemical industry and medicine.

Levitsky, Igor A. (Fall River, MA); Krivoshlykov, Sergei G. (Shrewsbury, MA)

2004-02-03T23:59:59.000Z

446

Methods And Devices For Characterizing Duplex Nucleic Acid Molecules  

DOE Patents [OSTI]

Methods and devices are provided for characterizing a duplex nucleic acid, e.g., a duplex DNA molecule. In the subject methods, a fluid conducting medium that includes a duplex nucleic acid molecule is contacted with a nanopore under the influence of an applied electric field and the resulting changes in current through the nanopore caused by the duplex nucleic acid molecule are monitored. The observed changes in current through the nanopore are then employed as a set of data values to characterize the duplex nucleic acid, where the set of data values may be employed in raw form or manipulated, e.g., into a current blockade profile. Also provided are nanopore devices for practicing the subject methods, where the subject nanopore devices are characterized by the presence of an algorithm which directs a processing means to employ monitored changes in current through a nanopore to characterize a duplex nucleic acid molecule responsible for the current changes. The subject methods and devices find use in a variety of applications, including, among other applications, the identification of an analyte duplex DNA molecule in a sample, the specific base sequence at a single nulceotide polymorphism (SNP), and the sequencing of duplex DNA molecules.

Akeson, Mark (Santa Cruz, CA); Vercoutere, Wenonah (Santa Cruz, CA); Haussler, David (Santa Cruz, CA); Winters-Hilt, Stephen (Santa Cruz, CA)

2005-08-30T23:59:59.000Z

447

RAPID SEPARATION METHOD FOR ACTINIDES IN EMERGENCY SOIL SAMPLES  

SciTech Connect (OSTI)

A new rapid method for the determination of actinides in soil and sediment samples has been developed at the Savannah River Site Environmental Lab (Aiken, SC, USA) that can be used for samples up to 2 grams in emergency response situations. The actinides in soil method utilizes a rapid sodium hydroxide fusion method, a lanthanum fluoride soil matrix removal step, and a streamlined column separation process with stacked TEVA, TRU and DGA Resin cartridges. Lanthanum was separated rapidly and effectively from Am and Cm on DGA Resin. Vacuum box technology and rapid flow rates are used to reduce analytical time. Alpha sources are prepared using cerium fluoride microprecipitation for counting by alpha spectrometry. The method showed high chemical recoveries and effective removal of interferences. This new procedure was applied to emergency soil samples received in the NRIP Emergency Response exercise administered by the National Institute for Standards and Technology (NIST) in April, 2009. The actinides in soil results were reported within 4-5 hours with excellent quality.

Maxwell, S.; Culligan, B.; Noyes, G.

2009-11-09T23:59:59.000Z

448

Promoter sequences and algorithmical methods for identifying them , Laurent Marsan  

E-Print Network [OSTI]

Promoter sequences and algorithmical methods for identifying them Anne Vanet a b , Laurent Marsan c available mathematical models algorithmical methods trying identify promoter sequences. The methods concern both types of organisms. survey therefore covers methods; however, emphasis placed prokaryotic promoter

Sagot, Marie-France

449

Apoptotic detection methods from morphology to gene  

Science Journals Connector (OSTI)

To date, many terms have been given for cell death and forgotten before they became widely accepted. Most researchers studying cell death use some terms for cell death that have survived over centuries and regard apoptosis and programmed cell death (PCD), and necrosis and oncosis as synonymous. The different terminologies used for cell death depending on the preference of researchers sometimes cause confusion in the study of apoptosis. The study of apoptosis was first based on cell morphology using transmission electron microscopy (TEM): chromatin condensation, cellular shrinkage, budding and apoptotic body formation. Recently, marked progress in biochemistry, molecular biology and genetics provided researchers of apoptosis various tools for apoptotsis detection, such as the terminal deoxynucleotidyl transferase (TdT)-mediated dUTP-biotin nick end-labeling (TUNEL) method, agarose gel electrophoresis using extracted DNA, staining methods using fluorescence dyes, and flow cytometry. This review focuses on the following topics: history of the study of cell death and its classification, apoptosis-related proteins and their signal pathways, morphological, biochemical and molecular biological methods of apoptosis detection, and the transcriptional regulation of bcl-2 using the real-time Southwestern method and cancer gene therapy. In addition, the merits and demerits of the above-mentioned apoptosis detection methods are discussed.

Yoshinori Otsuki; Zhonglian Li; Masa-Aki Shibata

2003-01-01T23:59:59.000Z

450

Method of detoxifying animal suffering from overdose  

DOE Patents [OSTI]

A method for accumulating drugs or other chemicals within synthetic, lipid-like vesicles by means of a pH gradient imposed on the vesicles just prior to use is described. The method is suited for accumulating molecules with basic or acid moieties which are permeable to the vesicles membranes in their uncharged form and for molecules that contain charge moieties that are hydrophobic ions and can therefore cross the vesicle membranes in their charged form. The method is advantageous over prior art methods for encapsulating biologically active materials within vesicles in that it achieves very high degrees of loading with simple procedures that are economical and require little technical expertise, furthermore kits which can be stored for prolonged periods prior to use without impairment of the capacity to achieve drug accumulation are described. A related application of the method consists of using this technology to detoxify animals that have been exposed to poisons with basic, weak acid or hydrophobic charge groups within their molecular structure.

Mehlhorn, Rolf J. (Richmond, CA)

1997-01-01T23:59:59.000Z

451

Computations of entropy bounds: Multidimensional geometric methods  

SciTech Connect (OSTI)

The entropy bounds for constructive upper bound on the needed number-of-bits for solving a dichotomy is represented by the quotient of two multidimensional solid volumes. For minimization of this upper bound exact calculation of the volume of this quotient is needed. Three methods for exact computing of the volume of a given nD volume are presented: (1) general method for calculation any nD volume by slicing it into volumes of decreasing dimension is presented; (2) a method applying appropriate curvilinear coordinate system is described for volume bounded by symmetrical curvilinear hypersurfaces (spheres, cones, hyperboloids, ellipsoids, cylinders, etc.); and (3) an algorithm for dividing any nD complex into simplices and computing of the volume of the simplices is presented, supplemented by a general formula for calculation of volume of an nD simplex. These mathematical methods enable exact calculation of volume of any complicated multidimensional solids. The methods allow for the calculation of the minimal volume and lead to tighter bounds on the needed number-of-bits.

Makaruk, H.E.

1998-02-01T23:59:59.000Z

452

Aggregation method for motor drive systems  

Science Journals Connector (OSTI)

Abstract When many variable frequency drives are connected to a common switchboard, their aggregated effect on system dynamics can be significant. In this paper, the aggregation method for variable frequency drives and their motors in industrial facilities is proposed, which is suitable for power systems dynamic studies. The proposed method can be applied to various types of motor drive systems. There are two steps involved for the proposed aggregation method: (1) aggregate motor drive systems connected to the same bus, and (2) further combine the aggregated model of motor drive systems from Step 1 with upstream series impedance and/or transformers. Due to involvement of high-order transfer functions in dynamic models of individual motor drive systems, Pade approximation is used as a useful tool in the aggregation process. Using the proposed aggregation method, an equivalent aggregated dynamic model of motor drive systems can be obtained at the substation bus. A case study is conducted in the paper, and the proposed aggregation method is verified to be effective by the case study.

Xiaodong Liang; Wilsun Xu

2014-01-01T23:59:59.000Z

453

Ion/proton-conducting apparatus and method  

DOE Patents [OSTI]

A c-axis-oriented HAP thin film synthesized by seeded growth on a palladium hydrogen membrane substrate. An exemplary synthetic process includes electrochemical seeding on the substrate, and secondary and tertiary hydrothermal treatments under conditions that favor growth along c-axes and a-axes in sequence. By adjusting corresponding synthetic conditions, an HAP this film can be grown to a controllable thickness with a dense coverage on the underlying substrate. The thin films have relatively high proton conductivity under hydrogen atmosphere and high temperature conditions. The c-axis oriented films may be integrated into fuel cells for application in the intermediate temperature range of 200-600.degree. C. The electrochemical-hydrothermal deposition technique may be applied to create other oriented crystal materials having optimized properties, useful for separations and catalysis as well as electronic and electrochemical applications, electrochemical membrane reactors, and in chemical sensors. Additional high-density and gas-tight HAP film compositions may be deposited using a two-step deposition method that includes an electrochemical deposition method followed by a hydrothermal deposition method. The two-step method uses a single hydrothermal deposition solution composition. The method may be used to deposit HAP films including but not limited to at least doped HAP films, and more particularly including carbonated HAP films. In addition, the high-density and gas-tight HAP films may be used in proton exchange membrane fuel cells.

Yates, Matthew; Xue, Wei

2014-12-23T23:59:59.000Z

454

Entropy viscosity method applied to Euler equations  

SciTech Connect (OSTI)

The entropy viscosity method [4] has been successfully applied to hyperbolic systems of equations such as Burgers equation and Euler equations. The method consists in adding dissipative terms to the governing equations, where a viscosity coefficient modulates the amount of dissipation. The entropy viscosity method has been applied to the 1-D Euler equations with variable area using a continuous finite element discretization in the MOOSE framework and our results show that it has the ability to efficiently smooth out oscillations and accurately resolve shocks. Two equations of state are considered: Ideal Gas and Stiffened Gas Equations Of State. Results are provided for a second-order time implicit schemes (BDF2). Some typical Riemann problems are run with the entropy viscosity method to demonstrate some of its features. Then, a 1-D convergent-divergent nozzle is considered with open boundary conditions. The correct steady-state is reached for the liquid and gas phases with a time implicit scheme. The entropy viscosity method correctly behaves in every problem run. For each test problem, results are shown for both equations of state considered here. (authors)

Delchini, M. O.; Ragusa, J. C. [Nuclear Engineering Department, Texas A and M University, 3133 TAMU, College Station, TX 77843-3133 (United States); Berry, R. A. [Idaho National Laboratory, P.O. Box 1625, Idaho Falls, ID 83415-3840 (United States)

2013-07-01T23:59:59.000Z

455

System and method for laser assisted sample transfer to solution for chemical analysis  

DOE Patents [OSTI]

A system and method for laser desorption of an analyte from a specimen and capturing of the analyte in a suspended solvent to form a testing solution are described. The method can include providing a specimen supported by a desorption region of a specimen stage and desorbing an analyte from a target site of the specimen with a laser beam centered at a radiation wavelength (.lamda.). The desorption region is transparent to the radiation wavelength (.lamda.) and the sampling probe and a laser source emitting the laser beam are on opposite sides of a primary surface of the specimen stage. The system can also be arranged where the laser source and the sampling probe are on the same side of a primary surface of the specimen stage. The testing solution can then be analyzed using an analytical instrument or undergo further processing.

Van Berkel, Gary J; Kertesz, Vilmos

2014-01-28T23:59:59.000Z

456

Tracer Methods for Characterizing Fracture Stimulation in Engineered...  

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

Tracer Methods for Characterizing Fracture Stimulation in Engineered Geothermal Systems (EGS) Tracer Methods for Characterizing Fracture Stimulation in Engineered Geothermal...

457

New Sampling Methods for Airborne Microorganisms  

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

New Sampling Methods for Airborne Microorganisms New Sampling Methods for Airborne Microorganisms Speaker(s): Klaus Willeke Date: February 27, 2001 - 12:00pm Location: Bldg 90 Seminar Host/Point of Contact: David Faulkner Klaus Willeke and his international team of engineers, physicists, microbiologists, industrial hygienists and environmental scientists have worked for about 15 years on the development of new methods for sampling airborne microorganisms. The following topics will be highlighted: long-term bioaerosol sampling into liquid by swirling air motion ("Biosampler"); personal aerosol sampling with low wind sensitivity and highfilter deposit uniformity ("Button Aerosol Sampler"); collection of microorganisms by electrostatic means; source testing as a predictor for microorganism release from surfaces; particle concentrating from large air

458

Nanometer Particles: Modern Methods of Research  

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

Nanometer Particles: Modern Methods of Research Nanometer Particles: Modern Methods of Research Speaker(s): Rashid Mavliev Date: August 10, 1999 - 12:00pm Location: Bldg. 90 Seminar Host/Point of Contact: Richard Sextro "Nanometer particles" (with diameter below 50 - 100 nm) have attracted attention during recent years because of their increasing role in industries such as powder technology and semiconductors. They also play a critical role in atmospheric processes. At this size range the properties of particles are different from those of bulk materials and single molecules. This promises new technological innovations and potential scientific discoveries. At the same time it makes the detection and characterization of such particles imperative. Optical methods, which allow for simultaneous measurement of size and concentration of particles

459

Method for High Accuracy Multiplicity Correlation Measurements  

E-Print Network [OSTI]

Multiplicity correlation measurements provide insight into the dynamics of high energy collisions. Models describing these collisions need these correlation measurements to tune the strengths of the underlying QCD processes which influence all observables. Detectors, however, often possess limited coverage or reduced efficiency that influence correlation measurements in obscure ways. In this paper, the effects of non-uniform detection acceptance and efficiency on the measurement of multiplicity correlations between two distinct detector regions (termed forward-backward correlations) are derived. This result is transformed into a correction method. Verification of the presented correction method is provided through simulations using different event generators. The result of the method allows one to correct measurements in a simulation independent manner with high accuracy and thereby shed light on the underlying processes.

Gulbrandsen, K

2014-01-01T23:59:59.000Z

460

Apparatus and method for controlling autotroph cultivation  

DOE Patents [OSTI]

A method includes receiving at least one measurement of a dissolved carbon dioxide concentration of a mixture of fluid containing an autotrophic organism. The method also includes determining an adjustment to one or more manipulated variables using the at least one measurement. The method further includes generating one or more signals to modify the one or more manipulated variables based on the determined adjustment. The one or more manipulated variables could include a carbon dioxide flow rate, an air flow rate, a water temperature, and an agitation level for the mixture. At least one model relates the dissolved carbon dioxide concentration to one or more manipulated variables, and the adjustment could be determined by using the at least one model to drive the dissolved carbon dioxide concentration to at least one target that optimize a goal function. The goal function could be to optimize biomass growth rate, nutrient removal and/or lipid production.

Fuxman, Adrian M; Tixier, Sebastien; Stewart, Gregory E; Haran, Frank M; Backstrom, Johan U; Gerbrandt, Kelsey

2013-07-02T23:59:59.000Z

Note: This page contains sample records for the topic "method analytical method" 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

Adaptive upscaling with the dual mesh method  

SciTech Connect (OSTI)

The objective of this paper is to demonstrate that upscaling should be calculated during the flow simulation instead of trying to enhance the a priori upscaling methods. Hence, counter-examples are given to motivate our approach, the so-called Dual Mesh Method. The main steps of this numerical algorithm are recalled. Applications illustrate the necessity to consider different average relative permeability values depending on the direction in space. Moreover, these values could be different for the same average saturation. This proves that an a priori upscaling cannot be the answer even in homogeneous cases because of the {open_quotes}dynamical heterogeneity{close_quotes} created by the saturation profile. Other examples show the efficiency of the Dual Mesh Method applied to heterogeneous medium and to an actual field case in South America.

Guerillot, D.; Verdiere, S.

1997-08-01T23:59:59.000Z

462

Overlapping Community Discovery Methods: A Survey  

E-Print Network [OSTI]

The detection of overlapping communities is a challenging problem which is gaining increasing interest in recent years because of the natural attitude of individuals, observed in real-world networks, to participate in multiple groups at the same time. This review gives a description of the main proposals in the field. Besides the methods designed for static networks, some new approaches that deal with the detection of overlapping communities in networks that change over time, are described. Methods are classified with respect to the underlying principles guiding them to obtain a network division in groups sharing part of their nodes. For each of them we also report, when available, computational complexity and web site address from which it is possible to download the software implementing the method.

Amelio, Alessia

2014-01-01T23:59:59.000Z

463

Multigrid method for electronic structure calculations  

Science Journals Connector (OSTI)

A general real-space multigrid algorithm for the self-consistent solution of the Kohn-Sham equations appearing in the state-of-the-art electronic-structure calculations is described. The most important part of the method is the multigrid solver for the Schrdinger equation. Our choice is the Rayleigh quotient multigrid method (RQMG), which applies directly to the minimization of the Rayleigh quotient on the finest level. Very coarse correction grids can be used, because there is, in principle, no need to represent the states on the coarse levels. The RQMG method is generalized for the simultaneous solution of all the states of the system using a penalty functional to keep the states orthogonal. The performance of the scheme is demonstrated by applying it in a few molecular and solid-state systems described by nonlocal norm-conserving pseudopotentials.

M. Heiskanen, T. Torsti, M. J. Puska, and R. M. Nieminen

2001-06-01T23:59:59.000Z

464

Gaseous Sulfate Solubility in Glass: Experimental Method  

SciTech Connect (OSTI)

Sulfate solubility in glass is a key parameter in many commercial glasses and nuclear waste glasses. This report summarizes key publications specific to sulfate solubility experimental methods and the underlying physical chemistry calculations. The published methods and experimental data are used to verify the calculations in this report and are expanded to a range of current technical interest. The calculations and experimental methods described in this report will guide several experiments on sulfate solubility and saturation for the Hanford Waste Treatment Plant Enhanced Waste Glass Models effort. There are several tables of sulfate gas equilibrium values at high temperature to guide experimental gas mixing and to achieve desired SO3 levels. This report also describes the necessary equipment and best practices to perform sulfate saturation experiments for molten glasses. Results and findings will be published when experimental work is finished and this report is validated from the data obtained.

Bliss, Mary

2013-11-30T23:59:59.000Z

465

A transmission calibration method for superconducting resonators  

E-Print Network [OSTI]

A method is proposed and experimentally explored for \\textit{in-situ} calibration of complex transmission data for superconducting microwave resonators. This cryogenic calibration method accounts for the instrumental transmission response between the vector network analyzer reference plane and the device calibration plane. Once calibrated, the observed resonator response was modeled in detail by two approaches. The first, a phenomenological model based on physically realizable rational functions, enables the extraction of multiple resonance frequencies and widths for coupled resonators without explicit specification of the circuit network. In the second, an ABCD-matrix representation for the distributed transmission line circuit is used to model the observed response from the characteristic impedance and propagation constant. When used in conjunction with electromagnetic simulations, the kinetic inductance fraction can be determined with this method with an accuracy of 2%. Datasets for superconducting microst...

Cataldo, Giuseppe; Barrentine, Emily M; Brown, Ari D; Moseley, Samuel H; U-Yen, Kongpop

2014-01-01T23:59:59.000Z

466

Hybrid least squares multivariate spectral analysis methods  

DOE Patents [OSTI]

A set of hybrid least squares multivariate spectral analysis methods in which spectral shapes of components or effects not present in the original calibration step are added in a following estimation or calibration step to improve the accuracy of the estimation of the amount of the original components in the sampled mixture. The "hybrid" method herein means a combination of an initial classical least squares analysis calibration step with subsequent analysis by an inverse multivariate analysis method. A "spectral shape" herein means normally the spectral shape of a non-calibrated chemical component in the sample mixture but can also mean the spectral shapes of other sources of spectral variation, including temperature drift, shifts between spectrometers, spectrometer drift, etc. The "shape" can be continuous, discontinuous, or even discrete points illustrative of the particular effect.

Haaland, David M. (Albuquerque, NM)

2002-01-01T23:59:59.000Z

467

Definition: Electrical Methods | Open Energy Information  

Open Energy Info (EERE)

Electrical Methods Electrical Methods Electrical methods aim to map the electrical resistivity structure of the subsurface. Electrical resistivity (inverse of electrical conductivity) is a measure of the ability for electrical current to flow and depends on parameters such as rock type, porosity and permeability, fluid type and saturation, and temperature. The SI unit of measure for resistivity is the ohm meter. [1] View on Wikipedia Wikipedia Definition Electrical resistivity (also known as resistivity, specific electrical resistance, or volume resistivity) quantifies how strongly a given material opposes the flow of electric current. A low resistivity indicates a material that readily allows the movement of electric charge. Resistivity is commonly represented by the Greek letter ρ. The SI unit of

468

Evaluation of Alternate Surface Passivation Methods (U)  

SciTech Connect (OSTI)

Stainless steel containers were assembled from parts passivated by four commercial vendors using three passivation methods. The performance of these containers in storing hydrogen isotope mixtures was evaluated by monitoring the composition of initially 50% H{sub 2} 50% D{sub 2} gas with time using mass spectroscopy. Commercial passivation by electropolishing appears to result in surfaces that do not catalyze hydrogen isotope exchange. This method of surface passivation shows promise for tritium service, and should be studied further and considered for use. On the other hand, nitric acid passivation and citric acid passivation may not result in surfaces that do not catalyze the isotope exchange reaction H{sub 2} + D{sub 2} {yields} 2HD. These methods should not be considered to replace the proprietary passivation processes of the two current vendors used at the Savannah River Site Tritium Facility.

Clark, E

2005-05-31T23:59:59.000Z

469

New methods for quantum mechanical reaction dynamics  

SciTech Connect (OSTI)

Quantum mechanical methods are developed to describe the dynamics of bimolecular chemical reactions. We focus on developing approaches for directly calculating the desired quantity of interest. Methods for the calculation of single matrix elements of the scattering matrix (S-matrix) and initial state-selected reaction probabilities are presented. This is accomplished by the use of absorbing boundary conditions (ABC) to obtain a localized (L{sup 2}) representation of the outgoing wave scattering Green`s function. This approach enables the efficient calculation of only a single column of the S-matrix with a proportionate savings in effort over the calculation of the entire S-matrix. Applying this method to the calculation of the initial (or final) state-selected reaction probability, a more averaged quantity, requires even less effort than the state-to-state S-matrix elements. It is shown how the same representation of the Green`s function can be effectively applied to the calculation of negative ion photodetachment intensities. Photodetachment spectroscopy of the anion ABC{sup -} can be a very useful method for obtaining detailed information about the neutral ABC potential energy surface, particularly if the ABC{sup -} geometry is similar to the transition state of the neutral ABC. Total and arrangement-selected photodetachment spectra are calculated for the H{sub 3}O{sup -} system, providing information about the potential energy surface for the OH + H{sub 2} reaction when compared with experimental results. Finally, we present methods for the direct calculation of the thermal rate constant from the flux-position and flux-flux correlation functions. The spirit of transition state theory is invoked by concentrating on the short time dynamics in the area around the transition state that determine reactivity. These methods are made efficient by evaluating the required quantum mechanical trace in the basis of eigenstates of the Boltzmannized flux operator.

Thompson, W.H. [Univ. of California, Berkeley, CA (United States). Dept. of Chemistry]|[Lawrence Berkeley Lab., CA (United States)

1996-12-01T23:59:59.000Z

470

Method of making maximally dispersed heterogeneous catalysts  

DOE Patents [OSTI]

A method of making a catalyst with monolayer or sub-monolayer metal by controlling the wetting characteristics on the support surface and increasing the adhesion between the catalytic metal and an oxide layer. There are two methods that have been demonstrated by experiment and supported by theory. In the first method, which is useful for noble metals as well as others, a negatively-charged species is introduced to the surface of a support in sub-ML coverage. The layer-by-layer growth of metal deposited onto the oxide surface is promoted because the adhesion strength of the metal-oxide interface is increased. This method can also be used to achieve nanoislands of metal upon sub-ML deposition. The negatively-charged species can either be deposited onto the oxide surface or a compound can be deposited that dissociates on, or reacts with, the surface to form the negatively-charged species. The deposited metal adatoms can thereby bond laterally to the negatively-charged species as well as vertically to the oxide surface. Thus the negatively-charged species serve as anchors for the metal. In the second method, a chemical reaction that occurs when most metals are deposited on a fully hydroxylated oxide surface is used to create cationic metal species that bind strongly both to the substrate and to metallic metal atoms. These are incorporated into the top layer of the substrate and bind strongly both to the substrate and to metallic metal atoms. In this case, these oxidized metal atoms serve as the anchors. Here, as in the previous method, nanoislands of catalytic metal can be achieved to increase catalytic activity, or monolayers or bilayers of reactive metal can also be made.

Jennison, Dwight R. (Albuquerque, NM)

2005-11-15T23:59:59.000Z

471

Method and system for small scale pumping  

DOE Patents [OSTI]

The present invention relates generally to the field of small scale pumping and, more specifically, to a method and system for very small scale pumping media through microtubes. One preferred embodiment of the invention generally comprises: method for small scale pumping, comprising the following steps: providing one or more media; providing one or more microtubes, the one or more tubes having a first end and a second end, wherein said first end of one or more tubes is in contact with the media; and creating surface waves on the tubes, wherein at least a portion of the media is pumped through the tube.

Insepov, Zeke (Darien, IL); Hassanein, Ahmed (Bolingbrook, IL)

2010-01-26T23:59:59.000Z

472

High sensitivity leak detection method and apparatus  

DOE Patents [OSTI]

An improved leak detection method is provided that utilizes the cyclic adsorption and desorption of accumulated helium on a non-porous metallic surface. The method provides reliable leak detection at superfluid helium temperatures. The zero drift that is associated with residual gas analyzers in common leak detectors is virtually eliminated by utilizing a time integration technique. The sensitivity of the apparatus of this disclosure is capable of detecting leaks as small as 1.times.10.sup.-18 atm cc sec.sup.-1.

Myneni, Ganapatic R. (Grafton, VA)

1994-01-01T23:59:59.000Z

473

High sensitivity leak detection method and apparatus  

DOE Patents [OSTI]

An improved leak detection method is provided that utilizes the cyclic adsorption and desorption of accumulated helium on a non-porous metallic surface. The method provides reliable leak detection at superfluid helium temperatures. The zero drift that is associated with residual gas analyzers in common leak detectors is virtually eliminated by utilizing a time integration technique. The sensitivity of the apparatus of this disclosure is capable of detecting leaks as small as 1 [times] 10[sup [minus]18] atm cc sec[sup [minus]1]. 2 figs.

Myneni, G.R.

1994-09-06T23:59:59.000Z

474

Improved method for detection of starch hydrolysis  

SciTech Connect (OSTI)

A new starch hydrolysis detection method which does not rely on iodine staining or the use of color-complexed starch is described. A linear relationship was obtained with agar-starch plates when net clearing zones around colonies of yeasts were plotted against enzyme levels (semilogarithm scale) produced by the same yeast strains in liquid medium. A similar relationship between starch clearing zones and alpha-amylase levels from three different sources was observed. These observations suggest that the method is useful in mutant isolations, strain improvement programs, and the prediction of alpha-amylase activities in culture filtrates or column effluents. (Refs. 18).

Ohawale, M.R.; Wilson, J.J.; Khachatourians, G.G.; Ingledew, W.M.

1982-09-01T23:59:59.000Z

475

Systems and methods for sensing occupancy  

DOE Patents [OSTI]

A computer implemented method for sensing occupancy of a workspace includes creating a difference image that represents luminance differences of pixels in past and current images of the workspace resulting from motion in the workspace, determining motion occurring in regions of the workspace based on the difference image, and altering a workspace environment based at least in part on the determined motion. The method also includes determining which pixels in the difference image represent persistent motion that can be ignored and determining which pixels representing motion in the difference image are invalid because the pixels are isolated from other pixels representing motion.

Dasu, Aravind; Mathias, Dean; Liu, Chenguang; Christensen, Randy; Christensen, Bruce

2014-09-09T23:59:59.000Z

476

Methods for producing reinforced carbon nanotubes  

DOE Patents [OSTI]

Methods for producing reinforced carbon nanotubes having a plurality of microparticulate carbide or oxide materials formed substantially on the surface of such reinforced carbon nanotubes composite materials are disclosed. In particular, the present invention provides reinforced carbon nanotubes (CNTs) having a plurality of boron carbide nanolumps formed substantially on a surface of the reinforced CNTs that provide a reinforcing effect on CNTs, enabling their use as effective reinforcing fillers for matrix materials to give high-strength composites. The present invention also provides methods for producing such carbide reinforced CNTs.

Ren, Zhifen (Newton, MA); Wen, Jian Guo (Newton, MA); Lao, Jing Y. (Chestnut Hill, MA); Li, Wenzhi (Brookline, MA)

2008-10-28T23:59:59.000Z

477

A pragmatic overview of fast multipole methods  

SciTech Connect (OSTI)

A number of physics problems can be modeled by a set of N elements which have pair-wise interactions with one another. A direct solution technique requires computational effort which is O(N{sup 2}). Fast multipole methods (FMM) have been widely used in recent years to obtain solutions to these problems requiring a computational effort of only 0 (N lnN) or O (N). In this paper we present an overview of several variations of the fast multipole method along with examples of its use in solving a variety of physical problems.

Strickland, J.H.; Baty, R.S.

1995-12-01T23:59:59.000Z

478

Numerical methods for computing Casimir interactions  

E-Print Network [OSTI]

We review several different approaches for computing Casimir forces and related fluctuation-induced interactions between bodies of arbitrary shapes and materials. The relationships between this problem and well known computational techniques from classical electromagnetism are emphasized. We also review the basic principles of standard computational methods, categorizing them according to three criteria---choice of problem, basis, and solution technique---that can be used to classify proposals for the Casimir problem as well. In this way, mature classical methods can be exploited to model Casimir physics, with a few important modifications.

Steven G. Johnson

2010-10-01T23:59:59.000Z

479

Direct Sampling Method for Diffusive Optical Tomography  

E-Print Network [OSTI]

In this work, we are concerned with the diffusive optical tomography (DOT) problem in the case when only one or two pairs of Cauchy data is available. We propose a simple and efficient direct sampling method (DSM) to locate inhomogeneities inside a homogeneous background and solve the DOT problem in both full and limited aperture cases. This new method is easy to implement and less expensive computationally. Numerical experiments demonstrate its effectiveness and robustness against noise in the data. This provides a new promising numerical strategy for the DOT problem.

Yat Tin Chow; Kazufumi Ito; Keji Liu; Jun Zou

2014-10-06T23:59:59.000Z

480

Hamilton-Jacobi Method and Gravitation  

E-Print Network [OSTI]

Studying the behaviour of a quantum field in a classical, curved, spacetime is an extraordinary task which nobody is able to take on at present time. Independently by the fact that such problem is not likely to be solved soon, still we possess the instruments to perform exact predictions in special, highly symmetric, conditions. Aim of the present contribution is to show how it is possible to extract quantitative information about a variety of physical phenomena in very general situations by virtue of the so-called Hamilton-Jacobi method. In particular, we shall prove the agreement of such semi-classical method with exact results of quantum field theoretic calculations.

R. Di Criscienzo; L. Vanzo; S. Zerbini

2010-10-05T23:59:59.000Z

Note: This page contains sample records for the topic "method analytical method" 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

Method of fracturing a geological formation  

DOE Patents [OSTI]

An improved method of fracturing a geological formation surrounding a well bore is disclosed. A relatively small explosive charge is emplaced in a well bore and the bore is subsequently hydraulically pressurized to a pressure less than the formation breakdown pressure and preferably greater than the fracture propagation pressure of the formation. The charge is denoted while the bore is so pressurized, resulting in the formation of multiple fractures in the surrounding formation with little or no accompanying formation damage. Subsequent hydraulic pressurization can be used to propagate and extend the fractures in a conventional manner. The method is useful for stimulating production of oil, gas and possibly water from suitable geologic formations.

Johnson, James O. (2679-B Walnut, Los Alamos, NM 87544)

1990-01-01T23:59:59.000Z

482

Focused ion beam source method and apparatus  

DOE Patents [OSTI]

A focused ion beam having a cross section of submicron diameter, a high ion current, and a narrow energy range is generated from a target comprised of particle source material by laser ablation. The method involves directing a laser beam having a cross section of critical diameter onto the target, producing a cloud of laser ablated particles having unique characteristics, and extracting and focusing a charged particle beam from the laser ablated cloud. The method is especially suited for producing focused ion beams for semiconductor device analysis and modification.

Pellin, Michael J. (Naperville, IL); Lykke, Keith R. (Gaithersburg, MD); Lill, Thorsten B. (Sunnyvale, CA)

2000-01-01T23:59:59.000Z

483

Method for extracting and sequestering carbon dioxide  

DOE Patents [OSTI]

A method and apparatus to extract and sequester carbon dioxide (CO.sub.2) from a stream or volume of gas wherein said method and apparatus hydrates CO.sub.2, and reacts the resulting carbonic acid with carbonate. Suitable carbonates include, but are not limited to, carbonates of alkali metals and alkaline earth metals, preferably carbonates of calcium and magnesium. Waste products are metal cations and bicarbonate in solution or dehydrated metal salts, which when disposed of in a large body of water provide an effective way of sequestering CO.sub.2 from a gaseous environment.

Rau, Gregory H. (Castro Valley, CA); Caldeira, Kenneth G. (Livermore, CA)

2005-05-10T23:59:59.000Z

484

Self-consistent generator coordinate method  

Science Journals Connector (OSTI)

An optimum continuous representation technique derived in analogy with the self-consistent harmonic approximation in quantum lattice dynamics is discussed and applied to Lipkin's model. The method is based on the variational principle and corresponds to an infinite summation of an expansion of the appropriate Hamiltonian kernel. The overlap kernel is treated exactly. The actual results indicate the removal of the drawbacks of low order perturbation theory previously employed in this connection.NUCLEAR STRUCTURE Continuous representation method applied to a solvable model.

Bernard Laskowski and Erkki Brndas

1976-04-01T23:59:59.000Z

485

Method and apparatus for combinatorial chemistry  

DOE Patents [OSTI]

A method and apparatus are provided for performing light-directed reactions in spatially addressable channels within a plurality of channels. One aspect of the invention employs photoactivatable reagents in solutions disposed into spatially addressable flow streams to control the parallel synthesis of molecules immobilized within the channels. The reagents may be photoactivated within a subset of channels at the site of immobilized substrate molecules or at a light-addressable site upstream from the substrate molecules. The method and apparatus of the invention find particularly utility in the synthesis of biopolymer arrays, e.g., oligonucleotides, peptides and carbohydrates, and in the combinatorial synthesis of small molecule arrays for drug discovery.

Foote, Robert S. (Oak Ridge, TN)

2012-06-05T23:59:59.000Z

486

A New Method for History Matching and Forecasting Shale Gas/Oil Reservoir Production Performance with Dual and Triple Porosity Models  

E-Print Network [OSTI]

Different methods have been proposed for history matching production of shale gas/oil wells which are drilled horizontally and usually hydraulically fractured with multiple stages. These methods are simulation, analytical models, and empirical...

Samandarli, Orkhan

2012-10-19T23:59:59.000Z

487

Image portion identification methods, image parsing methods, image parsing systems, and articles of manufacture  

DOE Patents [OSTI]

Image portion identification methods, image parsing methods, image parsing systems, and articles of manufacture are described. According to one embodiment, an image portion identification method includes accessing data regarding an image depicting a plurality of biological substrates corresponding to at least one biological sample and indicating presence of at least one biological indicator within the biological sample and, using processing circuitry, automatically identifying a portion of the image depicting one of the biological substrates but not others of the biological substrates.

Lassahn, Gordon D.; Lancaster, Gregory D.; Apel, William A.; Thompson, Vicki S.

2013-01-08T23:59:59.000Z

488

A new improved forecasting method integrated fuzzy time series with the exponential smoothing method  

Science Journals Connector (OSTI)

This paper presents a new method of integrated fuzzy time series with the exponential smoothing method to forecast university enrolments. The data of historical enrolments of the University of Alabama shown in Liu et al. (2011) are adopted to illustrate the forecasting process of the proposed method. A comparison has been made with five previous fuzzy time series models. Meanwhile, the mean squared error has also been calculated as the evaluation criterion to illustrate the performance of the proposed method. The empirical analysis shows that the proposed model reflects the fluctuations in fuzzy time series better and provides better overall forecasting results than the five listed previous models.

Peng Ge; Jun Wang; Peiyu Ren; Huafeng Gao; Yuyan Luo

2013-01-01T23:59:59.000Z

489

Methods of analysis modified size exchange chromatography method for analysis of heavy oil residues  

Science Journals Connector (OSTI)

A modified size exchange chromatography method is used to obtain molecular weight distributions, average molecular weight, and other characteristics of heavy oil residues: coal asphalt, petroleum asphalt, vacu...

Changming Zhang; Adnan Alhajji

2012-09-01T23:59:59.000Z

490

High resolution mass spectrometry method and system for analysis of whole proteins and other large molecules  

DOE Patents [OSTI]

A matrix assisted laser desorption/ionization (MALDI) method and related system for analyzing high molecular weight analytes includes the steps of providing at least one matrix-containing particle inside an ion trap, wherein at least one high molecular weight analyte molecule is provided within the matrix-containing particle, and MALDI on the high molecular weight particle while within the ion trap. A laser power used for ionization is sufficient to completely vaporize the particle and form at least one high molecular weight analyte ion, but is low enough to avoid fragmenting the high molecular weight analyte ion. The high molecular weight analyte ion is extracted out from the ion trap, and is then analyzed using a detector. The detector is preferably a pyrolyzing and ionizing detector.

Reilly, Peter T. A. (Knoxville, TN) [Knoxville, TN; Harris, William A. (Naperville, IL) [Naperville, IL

2010-03-02T23:59:59.000Z

491

Synthesis of Enterprise and Value-Based Methods for Multiattribute Risk Analysis  

SciTech Connect (OSTI)

This paper describes a method for performing multiattribute decision analysis to prioritize ap-proaches to handling risks during the development and operation of complex socio-technical systems. The method combines risk categorization based on enterprise views, risk prioritization of the categories based on the Analytic Hierarchy Process (AHP), and more standard probability-consequence ratings schemes. We also apply value-based testing me-thods used in software development to prioritize risk-handling approaches. We describe a tool that synthesizes the methods and performs a multiattribute analysis of the technical and pro-grammatic risks on the Next Generation Nuclear Plant (NGNP) enterprise.

C. Robert Kenley; John W. Collins; John M. Beck; Harold J. Heydt; Chad B. Garcia

2001-10-01T23:59:59.000Z

492

Apparatus and method for performing microfluidic manipulations for chemical analysis and synthesis  

DOE Patents [OSTI]

A microchip laboratory system and method provide fluid manipulations for a variety of applications, including sample injection for microchip chemical separations. The microchip is fabricated using standard photolithographic procedures and chemical wet etching, with the substrate and cover plate joined using direct bonding. Capillary electrophoresis and electrochromatography are performed in channels formed in the substrate. Analytes are loaded into a four-way intersection of channels by electrokinetically pumping the analyte through the intersection, followed by switching of the potentials to force an analyte plug into the separation channel. 46 figs.

Ramsey, J.M.

1999-01-12T23:59:59.000Z

493

Apparatus and method for fabricating a microbattery  

DOE Patents [OSTI]

An apparatus and method for fabricating a microbattery that uses silicon as the structural component, packaging component, and semiconductor to reduce the weight, size, and cost of thin film battery technology is described. When combined with advanced semiconductor packaging techniques, such a silicon-based microbattery enables the fabrication of autonomous, highly functional, integrated microsystems having broad applicability.

Shul, Randy J. (Albuquerque, NM); Kravitz, Stanley H. (Albuquerque, NM); Christenson, Todd R. (Albuquerque, NM); Zipperian, Thomas E. (Edgewood, NM); Ingersoll, David (Albuquerque, NM)

2002-01-01T23:59:59.000Z

494

System and method for ultrasonic tomography  

DOE Patents [OSTI]

A system and method for doing both transmission mode and reflection mode three-dimensional ultrasonic imagining. The multimode imaging capability may be used to provide enhanced detectability of cancer tumors within human breast, however, similar imaging systems are applicable to a number of other medical problems as well as a variety of non-medical problems in non-destructive evaluation (NDE).

Haddad, Waleed Sami (Dublin, CA)

2002-01-01T23:59:59.000Z

495

A Numerical Method for Extended Boussinesq  

E-Print Network [OSTI]

A Numerical Method for Extended Boussinesq Shallow-Water Wave Equations by Mark Andrew Walkley and diffraction, and nonlinear wave interactions such as the generation of harmonic waves. The Boussinesq, shallow water envi- ronment. There are a variety of Boussinesq-type mathematical models

Walkley, Mark

496

Geodesic Methods for Shape and Surface Processing  

E-Print Network [OSTI]

Geodesic Methods for Shape and Surface Processing Gabriel Peyr´e and Laurent Cohen Ceremade, UMR the theory and practice of the nu- merical computation of geodesic distances on Riemannian manifolds be preferred). Using this local tensor field, the geodesic distance is used to solve many problems of practical

Paris-Sud XI, Université de

497

Method of fabricating a solar cell  

DOE Patents [OSTI]

Methods of fabricating solar cells are described. A porous layer may be formed on a surface of a substrate, the porous layer including a plurality of particles and a plurality of voids. A solution may be dispensed into one or more regions of the porous layer to provide a patterned composite layer. The substrate may then be heated.

Pass, Thomas; Rogers, Robert

2014-02-25T23:59:59.000Z

498

Hydrogasification reactor and method of operating same  

SciTech Connect (OSTI)

The present invention provides a system and method for evaluating effects of process parameters on hydrogasification processes. The system includes a hydrogasification reactor, a pressurized feed system, a hopper system, a hydrogen gas source, and a carrier gas source. Pressurized carbonaceous material, such as coal, is fed to the reactor using the carrier gas and reacted with hydrogen to produce natural gas.

Hobbs, Raymond; Karner, Donald; Sun, Xiaolei; Boyle, John; Noguchi, Fuyuki

2013-09-10T23:59:59.000Z

499

Method for regulation of plant lignin composition  

DOE Patents [OSTI]

A method is disclosed for the regulation of lignin composition in plant tissue. Plants are transformed with a gene encoding an active F5H gene. The expression of the F5H gene results in increased levels of syringyl monomer providing a lignin composition more easily degraded with chemicals and enzymes.

Chapple, Clint (West Lafayette, IN)

1999-01-01T23:59:59.000Z

500

Measuring class cohesion using mutant methods  

Science Journals Connector (OSTI)

Class cohesion is a measure of software quality and maintainability. A highly cohesive class implies that its modules are functionally coherent and integrated. To date, there are varying cohesion metrics that measure class cohesion from different perspectives. ... Keywords: class cohesion, mutant methods, mutant operators

Sim-Hui Tee

2010-11-01T23:59:59.000Z