National Library of Energy BETA

Sample records for analyzes cash flow

  1. Cash Flow Projection for Operating Loan Determination 

    E-Print Network [OSTI]

    Klinefelter, Danny A.; McCorkle, Dean

    2009-02-04

    A cash flow statement is simply a record of the dollars coming in and the dollars going out of a business. This publication briefly discusses cash flow and gives a cash flow projection for operating loan determination.

  2. Solyndra Facts vs. Fiction: Cash Flow Modeling

    Broader source: Energy.gov [DOE]

    Questions have been raised about a quote selectively pulled from an Aug. 20, 2009 email to make it look like Solyndra would run out of cash by Sept. 2011. To be clear, the analysis addressed in that email did not refer to Solyndra’s corporate cash flow, but rather the cash flow for a subsidiary of Solyndra – the “Fab 2 Project Company.

  3. Cash Flow Defining The Construction Industry 

    E-Print Network [OSTI]

    Nair, Shalini

    2015-08-06

    management level. The personal responsibility levels are moderate and the returns based on the decisions made are sometimes hard to determine. The developed game rules model such a situation, providing a Superintendent with a scenario to control cash flow...

  4. Cash Flow and Discount Rate news estimation: which method to choose?

    E-Print Network [OSTI]

    Khimich, Natalya V.

    2012-01-01

    Cash Flow and Discount Rate News estimates obtained form theCash Flow and Discount Rate News estimates obtained form theTrue’ simulated Cash Flow News and Discount Rate News and

  5. Infrastructure Analysis Tools: A Focus on Cash Flow Analysis (Presentation)

    SciTech Connect (OSTI)

    Melaina, M.; Penev, M.

    2012-09-01

    NREL has developed and maintains a variety of infrastructure analysis models for the U.S. Department of Energy. Business case analysis has recently been added to this tool set. This presentation focuses on cash flow analysis. Cash flows depend upon infrastructure costs, optimized spatially and temporally, and assumptions about financing and revenue. NREL has incorporated detailed metrics on financing and incentives into the models. Next steps in modeling include continuing to collect feedback on regional/local infrastructure development activities and 'roadmap' dynamics, and incorporating consumer preference assumptions on infrastructure to provide direct feedback between vehicles and station rollout.

  6. Financial Cash Flow Determinants of Company Failure in the Construction

    E-Print Network [OSTI]

    Kamat, Vineet R.

    Financial Cash Flow Determinants of Company Failure in the Construction Industry by Ihab to thank my family. They have always been a source of inspiration, encouragement and love, and I would xi Chapter 1: Introduction 1 1.1 Construction Company Failure Statistics 6 1.2 Overview

  7. QUANTIFYING RESIDENTIAL PV ECONOMICS IN THE US PAYBACK vs. CASH FLOW

    E-Print Network [OSTI]

    Perez, Richard R.

    QUANTIFYING RESIDENTIAL PV ECONOMICS IN THE US --- PAYBACK vs. CASH FLOW DETERMINATION OF FAIR by prospective PV owners. Contrasting this measure with another financial gauge -- life-cycle cash flow -- the paper discusses why payback may not be the most appropriate measure for residential PV applications

  8. ACFAC: a cash flow analysis code for estimating product price from an industrial operation

    SciTech Connect (OSTI)

    Delene, J.G.

    1980-04-01

    A computer code is presented which uses a discountted cash flow methodology to obtain an average product price for an industtrial process. The general discounted cash flow method is discussed. Special code options include multiple treatments of interest during construction and other preoperational costs, investment tax credits, and different methods for tax depreciation of capital assets. Two options for allocating the cost of plant decommissioning are available. The FORTRAN code listing and the computer output for a sample problem are included.

  9. Value or Growth? Pricing of Idiosyncratic Cash Flow Risk with Heterogeneous Beliefs 

    E-Print Network [OSTI]

    Jhang, Ho Gyu

    2014-05-05

    -dividend ratio from the benchmark model where investors’ belief differences do not exist. In this case, vs,I does not exist in equilibrium, neither ?s,A does. Benchmark result roughly corresponds to the cross-sectional return simulation of Santos and Veronesi... (2005), Lettau and Wachter (2007), Da (2009), Santos and Veronesi (2010), and Choi, Johnson, Kim, and Nam (2013) developed structural models that directly link cash flow risk or cash flow duration with book-to-market and expected stock returns...

  10. Risk assessment for uncertain cash flows: Model ambiguity, discounting ambiguity, and the role of bubbles

    E-Print Network [OSTI]

    Föllmer, Hans

    Risk assessment for uncertain cash flows: Model ambiguity, discounting ambiguity, and the role of bubbles Beatrice Acciaio Hans F¨ollmer Irina Penner August 26, 2010 Abstract We study the risk assessment penalization, and how they cause a breakdown of asymptotic safety of the risk assessment procedure. Mathematics

  11. A Seminal Case Study on Application of Last Planner System with Cash Flow Data for Improvements in Construction Management Practices 

    E-Print Network [OSTI]

    Lagoo, Nishi

    2012-07-16

    (PPC) with projected and actual draw (cash) calls. The research analyzes the question of how lean construction PPC captures variance in cost. The research method is based on a literature review, data collection, case study and data interpretation...

  12. Using Stochastic Discounted Cash Flow and Real Option Monte Carlo Simulation to Analyse the Impacts of Contingent Taxes on

    E-Print Network [OSTI]

    Using Stochastic Discounted Cash Flow and Real Option Monte Carlo Simulation to Analyse the Impacts in the presence of a windfall profits tax. Real options Monte Carlo simulation is used to characterise from the project. The results highlight that Monte Carlo simulation paired with the real option

  13. SRC-I: revised baseline supplement. [Cash flows associated with Phase IIIC extended operation of SRC-I Demonstration Plant

    SciTech Connect (OSTI)

    Not Available

    1984-07-01

    The recently submitted Revised SRC-I Project Baseline included 30 months of plant operations. This period is divided into two sub-phases: IIIA and IIIB. Phase IIIA is six months in duration and is defined as Startup and Shakedown of the Demonstration Plant. Phase IIIB is two years in duration and encompasses two years of test operations. The Prime Contract allowed for the possibility of up to three additional years of test operations. This extension, Phase IIIC, was subject to mutual agreement by ICRC and DOE. It was also dependent upon a formal Notice of Buyout and plan for expansion of the Demonstration Plant. Pursuant to DOE instructions, the cash flows associated with Phase IIIC have been prepared consistent with the Revised SRC-I Project Baseline and are herewith included.

  14. Converting 15-Minute Interval Electricity Load Data into Reduced Demand, Energy Reduction and Cash Flow 

    E-Print Network [OSTI]

    Herrin, D. G.

    2007-01-01

    the types of data acquisition equipment and systems available and the different components of a data. Lastly, actual graphs of data will be presented to demonstrate how to dissect and analyze a data set and then implement measures that will optimize...

  15. EIN Cash Flow Model

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: AlternativeCommunication3-E Wholesale Power Rate10 EECBGEERE AnnualInfographic EGSEIA CasesEIN

  16. An examination of the relative value of discounted cash flow analysis as an aid in making capital expenditure decisions 

    E-Print Network [OSTI]

    York, Bobby Ray

    1960-01-01

    that hes beekk ayylis4 ?o yxofitably to the other ak'eas oi' bvsibess e4gia Lstrationi Soaop ~easel %khaki ~ gggth4~1+ of ~~g 84krvaI'4 ". ustness yevisw, Jeaoerg Febrnary, lyly%, yy. 129 Lpo. The exeslnatlon en4 evslvatkon of yroyoee4 capitals egyen4... ". . eviex&& Maveb-Syvil& 19&9& yy? ?@7 99- b? Noh&xa&x& '9isixo&xsted dash Floe Wsth?4 of' Svaliixetiag yroyose4 Xavestaest?, " yayex" csex&ted to Eleve&&th Sax&i&al Ascouotix&g Cixaferesoe. 41ecneee4 ths ayyLication Of tbs 4isoonnte4 cash flov...

  17. Cash for Coolers

    E-Print Network [OSTI]

    Davis, Lucas W.; Fuchs, Alan; Gertler, Paul J.

    2012-01-01

    Replacement, Energy-Efficiency, Rebound Effect, Cash forThe Rebound Effect The decrease in energy consumption in2000. “On the Rebound? Feedback Between Energy Intensities

  18. Cash for Coolers

    E-Print Network [OSTI]

    Davis, Lucas W.; Fuchs, Alan; Gertler, Paul J.

    2012-01-01

    also reducing carbon dioxide emissions and other negativewithout accounting for carbon dioxide emissions or otherand thereby reduce carbon dioxide emissions. Unlike Cash for

  19. Analyzing

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 OutreachProductswsicloudwsiclouddenDVA N C E D B L O O D S TAPropaneandAn3 Table 3. SummaryAnalyzing the

  20. Cash Flow Worksheet Student's Name: _______________________________________

    E-Print Network [OSTI]

    Royer, Dana

    @wesleyan.edu - 1 - www.wesleyan.edu/finaid #12;2016-17 Expenses (per month) Mortgage/rent (circle which) ________________ Utilities (phone, electric, oil, cable, etc.) ________________ Food ________________ Clothing

  1. Determining Cropland Cash Rental Arrangements 

    E-Print Network [OSTI]

    Dhuyvetter, Kevin C.; Kastens, Terry L.; Outlaw, Joe

    1999-06-23

    arrangements, using a crop share approach to determine a cash rental rate is practical. This approach determines the cash equivalent amount of an equitable crop share arrangement and then often makes a risk adjustment to that value. The reason for making... proportionally (increase of approxi- mately 10 percent in all regions). This normal- ization of returns is also consistent with the gen- eral assumption that average profits equal zero in the long run. Equitable crop share arrangements were cal- culated...

  2. Flow Flow Flow Flow Flow Flow Flow Flow Flow Flow

    E-Print Network [OSTI]

    Marchese, Francis

    Flow Flow Flow Flow Flow Flow Flow Flow Flow Flow Flow Flow Flow Flow Flow Flow Flow Flow Flow Flow Flow Flow Flow Flow Flow Flow Flow Flow Flow Flow Flow Flow Flow Flow Flow Flow Flow Flow Flow Flow Flow Flow Flow Flow Flow Flow Flow Flow Flow Flow Flow Flow Flow Flow Flow Flow Flow Flow Flow Flow

  3. Development of an electrical impedance computed tomographic two-phase flows analyzer. Annual technical report for program renewal

    SciTech Connect (OSTI)

    Jones, O.C.

    1993-05-01

    This progress report details the theoretical development, numerical results, experimental design (mechanical), experimental design (electronic), and experimental results for the research program for the development of an electrical impedance computed tomographic two-phase flow analyzer.

  4. Ingenious Women Exploring Creativity, Cash

    E-Print Network [OSTI]

    Obbard, Darren

    Ingenious Women Exploring Creativity, Cash and Control to unlock potential 04-06 Innovative of Higher Education and Edinburgh. Our focus will be on ensuring that IAD provides a space, connections Ingenious Women: an approach to unlocking potential 07 Three Minute Thesis: Case Study 08 Making the Most

  5. Analyzing flow patterns in unsaturated fractured rock of Yucca Mountain using an integrated modeling approach

    E-Print Network [OSTI]

    Wu, Yu-Shu; Lu, Guoping; Zhang, Keni; Pan, Lehua; Bodvarsson, Gudmundur S.

    2008-01-01

    temperature profiles or geothermal gradients within the UZthe UZ by ambient geothermal gradients. Any large increasein net heat flow or geothermal gradients, such that model

  6. Cash Flow Impacts of Industrial Steam Efficiency 

    E-Print Network [OSTI]

    Russell, C.

    2003-01-01

    . Corporate leaders can maintain ROI by avoiding asset additions, but eventually the downtime imposed by failing assets begins to defeat this strategy. Plant optimization achieved through applied energy efficiency can only support the manager's adherence... gets the resources to upgrade steam assets and maintenance. But in addition, product managers enjoy lower costs per unit due to reduced waste of direct materials, as well as avoided downtime. Sales and marketing staff enjoy a bit more negotiating...

  7. Finance is the study of the acquisition, distribution, and flow of funds. Finance professionals analyze capital

    E-Print Network [OSTI]

    5/2013 FINANCE Finance is the study of the acquisition, distribution, and flow of funds. Finance, lending money and investing money. Financial professionals may work with individuals (personal finance), businesses (corporate finance) and within government agencies (public finance). Financial service job

  8. Fact #587: September 7, 2009 Cash for Clunkers Program - Fuel...

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

    Fact 587: September 7, 2009 Cash for Clunkers Program - Fuel Economy Improvement The Car Allowance Rebate System (CARS), also known as the Cash for Clunkers Program, provided...

  9. Cash Management and A/R and PCI...

    E-Print Network [OSTI]

    Gopalakrishnan, K.

    3/2/2015 1 Cash Management and A/R and PCI... OH MY!!! DEE BOWLING, JULIE JUSTICE & ROBIN MAYO Agenda Cash Management A/R ­ Accounts Receivable PCI Q&A Cash Management #12;3/2/2015 2 Cash as needed Equipment needs Use of U-Store PCI consultation as needed #12;3/2/2015 4 Bank Accounts All

  10. Financial Management: Cash vs. Accrual Accounting 

    E-Print Network [OSTI]

    Klinefelter, Danny A.; McCorkle, Dean; Klose, Steven

    2008-10-17

    receivable Gross revenue Cash disbursements ? Beginning accounts payable + Ending accounts payable ? Beginning accrued expenses + Ending accrued expenses + Beginning prepaid expenses ? Ending prepaid expenses + Beginning supplies (fuel, chemical, etc... in prepaid expenses Change in unused supplies Change in investments in growing crops Depreciation Total operating expenses $85,000 ? $12,000 + $1,000 ? $2,000 ? $4,000 ? $27,000 $95,000 Net farm income from operations (cash basis) Gain/loss on sale...

  11. Farm and Ranch Financial Management: Cash vs. Accrual Accounting 

    E-Print Network [OSTI]

    Klinefelter, Danny A.

    1996-11-01

    of commodities raised on the farm, accounts receivable, prepaid expenses, cash invested in growing crops, accounts payable, accrued expenses and deferred taxes. Many com- puterized accounting systems, and tax preparers who work with only cash based records... receivable revenues + Ending accounts receivable ? Beginning accounts payable + Ending accounts payable ? Beginning accrued expenses + Ending accrued expenses + Beginning prepaid expenses Cash ? Ending prepaid expenses Operating disbursements + Beginning...

  12. Cash Management Pool Guidelines The Cash Management Pool was established by the University of Utah as a pooled fund for

    E-Print Network [OSTI]

    Tipple, Brett

    Cash Management Pool Guidelines I. Purpose The Cash Management Pool was established the State of Utah Money Management Act, the Rules of the State Money Management Council, Utah State Board only be invested in authorized investments in accordance with the State of Utah Money Management Act

  13. Vehicle and Infrastructure Cash-Flow Evaluation (VICE) | Open Energy

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page| Open Energy Information Serbia-EnhancingEt Al.,Turin, NewArkansas: Energy ResourcesVecarius JumpInformation and

  14. Cash flow analysis: a tool for the dairy farmer 

    E-Print Network [OSTI]

    McMorrough, Mark D

    1985-01-01

    -of-business altogether. "3 When you combine lower or no price support with the current economic crisis facing agricultural producers, the outlook for the next few years is bleak. The Governor of Minnesota, Rudy Perpick, stated that the current farm situation "ts... included in this bill would reduce milk price supports over the next three years. A second proposal issued by the Office of Management and Budget would completely terminate the dairy price support program. Without any reduction at all in the dairy price...

  15. Abating Greenhouse Gas Emissions through Cash-for-Clunker Programs

    E-Print Network [OSTI]

    Allen, Alexander; Carpenter, Rachel; Morrison, Geoff

    2009-01-01

    Agency. Inventory of U.S. Greenhouse Gas Emissions andAdministration. Emissions of Greenhouse Gases in the UnitedAbating Greenhouse Gas Emissions through Cash-for-Clunker

  16. Oxygen analyzer

    DOE Patents [OSTI]

    Benner, W.H.

    1984-05-08

    An oxygen analyzer which identifies and classifies microgram quantities of oxygen in ambient particulate matter and for quantitating organic oxygen in solvent extracts of ambient particulate matter. A sample is pyrolyzed in oxygen-free nitrogen gas (N/sub 2/), and the resulting oxygen quantitatively converted to carbon monoxide (CO) by contact with hot granular carbon (C). Two analysis modes are made possible: (1) rapid determination of total pyrolyzable obtained by decomposing the sample at 1135/sup 0/C, or (2) temperature-programmed oxygen thermal analysis obtained by heating the sample from room temperature to 1135/sup 0/C as a function of time. The analyzer basically comprises a pyrolysis tube containing a bed of granular carbon under N/sub 2/, ovens used to heat the carbon and/or decompose the sample, and a non-dispersive infrared CO detector coupled to a mini-computer to quantitate oxygen in the decomposition products and control oven heating.

  17. Basic Marketing of Texas Cotton: Forward Contracts, Cash Sales, Marketing Pools, and the USDA Loan Program 

    E-Print Network [OSTI]

    Robinson, John; Park, John; Smith, Jackie; Anderson, Carl

    2006-10-10

    This publication explains basic marketing alternatives for cotton producers, including forward contracts, cash sales, marketing pools and USDA loan programs....

  18. On-Line Journal Tips and Refreshers Cash Receipt and Credit Card Journals

    E-Print Network [OSTI]

    Yamamoto, Keith

    On-Line Journal Tips and Refreshers Cash Receipt and Credit Card Journals Updated April 2009 Updated 04/30/2010 1 Cash Receipt and Credit Card Journals ­ Source Code 320 and 323 Purpose Cash Receipt more or once a week ­ whichever comes first. 2. Journals should be dated the date they are prepared

  19. Optical analyzer

    DOE Patents [OSTI]

    Hansen, A.D.

    1987-09-28

    An optical analyzer wherein a sample of particulate matter, and particularly of organic matter, which has been collected on a quartz fiber filter is placed in a combustion tube, and light from a light source is passed through the sample. The temperature of the sample is raised at a controlled rate and in a controlled atmosphere. The magnitude of the transmission of light through the sample is detected as the temperature is raised. A data processor, differentiator and a two pen recorder provide a chart of the optical transmission versus temperature and the rate of change of optical transmission versus temperature signatures (T and D) of the sample. These signatures provide information as to physical and chemical processes and a variety of quantitative and qualitative information about the sample. Additional information is obtained by repeating the run in different atmospheres and/or different rates or heating with other samples of the same particulate material collected on other filters. 7 figs.

  20. Allowance trading made easy: The cash-forward settlement

    SciTech Connect (OSTI)

    Bartels, C.W.

    1993-11-01

    Centralized trading for cash-forward settlement adopts the most useful aspects of traditional commodity trading of spot cash and futures contracts, but eliminates those aspect which are most problematic for the regulated utility industry. Title IV of the Clean Air Act Amendments of 1990 created a system of tradeable pollution rights which promises to achieve U.S. acid rain reduction goals at a savings of billions of dollars compared to traditional means of environmental regulation. The ultimate success of this allowance trading program depends in large part on the utility industry's capacity to integrate a new type of transaction into planning, decision-making, and cost recovery mechanism. The breadth and novelty of this challenge, along with the conservative nature of utility planners, executives, and regulators, may be one reason exploitation of allowance trading has been slow to develop.

  1. Development of a Well Intervention Toolkit to Analyze Initial Wellbore Conditions and Evaluate Injection Pressures, Flow Path, Well Kill, and Plugging Procedures 

    E-Print Network [OSTI]

    Paknejad, Amir S

    2009-08-03

    Surface pressure rise, psi pwf Wellbore flowing pressure, psi P Pressure at any point, psia P&A Plug and Abandon PVT Pressure-Volume-Temperature Poutlet Pressure at choke outlet, psi Pb Bubble point pressure, psi Pdn Downstream pressure... 2.3.2.3 Density .......................................................... 31 2.3.2.4 Viscosity ........................................................ 32 2.3.3 PVT Models...

  2. Increase in Cash Holdings: Pervasive or Sector-Specific? University of Toronto

    E-Print Network [OSTI]

    Saskatchewan, University of

    : This paper examines the difference in cash holdings between high-tech and non-high-tech firms over the period from 1974 to 2007. In contrast to the average cash-to-assets ratio of non-high- tech firms, which remained stable at a level close to that of the 1970s, the average cash ratio of high-tech firms more than

  3. Pricing Our Way Out of Traffic Congestion: parking cash out and HOT lanes

    E-Print Network [OSTI]

    Shoup, Donald C.; Brown, Jeffrey

    2001-01-01

    Opportunity to Reduce Minimum Parking Requirements," JournalOpportunity to Reduce Minimum Parking Requirements," Journalof Traffic Congestion: Parking Cash Out and HOTLanes Donald

  4. Derivation of a Multiparameter Gamma Model for Analyzing the Residence-Time Distribution Function for Nonideal Flow Systems as an Alternative to the Advection-Dispersion Equation

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Embry, Irucka; Roland, Victor; Agbaje, Oluropo; Watson, Valetta; Martin, Marquan; Painter, Roger; Byl, Tom; Sharpe, Lonnie

    2013-01-01

    A new residence-time distribution (RTD) function has been developed and applied to quantitative dye studies as an alternative to the traditional advection-dispersion equation (AdDE). The new method is based on a jointly combined four-parameter gamma probability density function (PDF). The gamma residence-time distribution (RTD) function and its first and second moments are derived from the individual two-parameter gamma distributions of randomly distributed variables, tracer travel distance, and linear velocity, which are based on their relationship with time. The gamma RTD function was used on a steady-state, nonideal system modeled as a plug-flow reactor (PFR) in the laboratory to validate themore »effectiveness of the model. The normalized forms of the gamma RTD and the advection-dispersion equation RTD were compared with the normalized tracer RTD. The normalized gamma RTD had a lower mean-absolute deviation (MAD) (0.16) than the normalized form of the advection-dispersion equation (0.26) when compared to the normalized tracer RTD. The gamma RTD function is tied back to the actual physical site due to its randomly distributed variables. The results validate using the gamma RTD as a suitable alternative to the advection-dispersion equation for quantitative tracer studies of non-ideal flow systems.« less

  5. Off-line compatible electronic cash method and system

    DOE Patents [OSTI]

    Kravitz, D.W.; Gemmell, P.S.; Brickell, E.F.

    1998-11-03

    An off-line electronic cash system having an electronic coin, a bank B, a payee S, and a user U with an account at the bank B as well as a user password z{sub u,i}, has a method for performing an electronic cash transfer. An electronic coin is withdrawn from the bank B by the user U and an electronic record of the electronic coin is stored by the bank B. The coin is paid to the payee S by the user U. The payee S deposits the coin with the bank B. A determination is made that the coin is spent and the record of the coin is deleted by the bank B. A further deposit of the same coin after the record is deleted is determined. Additionally, a determination is made which user U originally withdrew the coin after deleting the record. To perform these operations a key pair is generated by the user, including public and secret signature keys. The public signature key along with a user password z{sub u,i} and a withdrawal amount are sent to the bank B by the user U. In response, the bank B sends a coin to the user U signed by the secret key of the bank indicating the value of the coin and the public key of the user U. The payee S transmits a challenge counter to the user U prior to receiving the coin. 16 figs.

  6. UCT Finance Policies & Procedures inv001_cash Page 1 of 6

    E-Print Network [OSTI]

    Jarrett, Thomas H.

    UCT Finance Policies & Procedures inv001_cash Page 1 of 6 Finance Department, UCT, Private Bag in the cash handling process (e.g. area finance managers) have the responsibility to periodically evaluate finance manager has to periodically evaluate internal procedures to ensure that reasonable controls exist

  7. Multiple capillary biochemical analyzer

    DOE Patents [OSTI]

    Dovichi, Norman J. (Edmonton, CA); Zhang, Jian Z. (Edmonton, CA)

    1995-01-01

    A multiple capillary analyzer allows detection of light from multiple capillaries with a reduced number of interfaces through which light must pass in detecting light emitted from a sample being analyzed, using a modified sheath flow cuvette. A linear or rectangular array of capillaries is introduced into a rectangular flow chamber. Sheath fluid draws individual sample streams through the cuvette. The capillaries are closely and evenly spaced and held by a transparent retainer in a fixed position in relation to an optical detection system. Collimated sample excitation radiation is applied simultaneously across the ends of the capillaries in the retainer. Light emitted from the excited sample is detected by the optical detection system. The retainer is provided by a transparent chamber having inward slanting end walls. The capillaries are wedged into the chamber. One sideways dimension of the chamber is equal to the diameter of the capillaries and one end to end dimension varies from, at the top of the chamber, slightly greater than the sum of the diameters of the capillaries to, at the bottom of the chamber, slightly smaller than the sum of the diameters of the capillaries. The optical system utilizes optic fibres to deliver light to individual photodetectors, one for each capillary tube. A filter or wavelength division demultiplexer may be used for isolating fluorescence at particular bands.

  8. Multiple capillary biochemical analyzer

    DOE Patents [OSTI]

    Dovichi, N.J.; Zhang, J.Z.

    1995-08-08

    A multiple capillary analyzer allows detection of light from multiple capillaries with a reduced number of interfaces through which light must pass in detecting light emitted from a sample being analyzed, using a modified sheath flow cuvette. A linear or rectangular array of capillaries is introduced into a rectangular flow chamber. Sheath fluid draws individual sample streams through the cuvette. The capillaries are closely and evenly spaced and held by a transparent retainer in a fixed position in relation to an optical detection system. Collimated sample excitation radiation is applied simultaneously across the ends of the capillaries in the retainer. Light emitted from the excited sample is detected by the optical detection system. The retainer is provided by a transparent chamber having inward slanting end walls. The capillaries are wedged into the chamber. One sideways dimension of the chamber is equal to the diameter of the capillaries and one end to end dimension varies from, at the top of the chamber, slightly greater than the sum of the diameters of the capillaries to, at the bottom of the chamber, slightly smaller than the sum of the diameters of the capillaries. The optical system utilizes optic fibers to deliver light to individual photodetectors, one for each capillary tube. A filter or wavelength division demultiplexer may be used for isolating fluorescence at particular bands. 21 figs.

  9. Reiner Hartenstein, TU Kaiserslautern http://hartenstein.de CASHE stands for Computer-Aided Software / Hardware Engineering

    E-Print Network [OSTI]

    Hartenstein, Reiner

    -Aided Software / Hardware Engineering July 1993 Reiner Hartenstein: CASHE using a new Machine Paradigm; Codes/CASHE'93 - 2nd IFIP International Workshop on Hardware/Software Codesign, May 24 ­ 27, 1993 1 #12;Reiner Hartenstein, TU Kaiserslautern http://hartenstein.de CASHE stands for Computer-Aided Software / Hardware

  10. Analyzing the Equity Impacts of Transit Fare Changes: A Case Study of AC Transit

    E-Print Network [OSTI]

    Nuworsoo, Cornelius; Deakin, Elizabeth

    2006-01-01

    System-wide Average : Cash Prepaid Ticket Asian/PacificSenior Disabled Adult Cash Prepaid Ticket Asian/Pacific

  11. Will You Be Trading in Your Clunker for Cash--and a More Efficient...

    Energy Savers [EERE]

    August 6, 2009 - 11:43am Addthis On Tuesday, Amy told you about the Car Allowance Rebate System (CARS) Program, widely known as "Cash-for-Clunkers," which provides an...

  12. Fact #587: September 7, 2009 Cash for Clunkers Program – Fuel Economy Improvement

    Broader source: Energy.gov [DOE]

    The Car Allowance Rebate System (CARS), also known as the Cash for Clunkers Program, provided Federal rebate money for consumers who traded old vehicles with an EPA combined fuel economy of 18...

  13. Labour's Record on Cash Transfers, Poverty, Inequality and the Lifecycle 1997 -2010

    E-Print Network [OSTI]

    Banaji,. Murad

    Labour's Record on Cash Transfers, Poverty, Inequality and the Lifecycle 1997 - 2010 John Hills ...................................................................................................................20 6. Outcomes: Poverty rates on the distribution of wealth, poverty, income inequality and spatial difference. The full programme of analysis

  14. Parking Cash Out: Chapters 1 and 22-28 from the manuscript of The High Cost of Free-Parking

    E-Print Network [OSTI]

    Shoup, Donald C.

    2001-01-01

    carriages nowcreate a parking problem, but newsolutions willone promising solution: parking cash out. After all, weFranceor Spain to put up a parking lot. FREE PARKING FIGURE

  15. System for analyzing coal liquefaction products

    DOE Patents [OSTI]

    Dinsmore, Stanley R. (Norris, TN); Mrochek, John E. (Oak Ridge, TN)

    1984-01-01

    A system for analyzing constituents of coal-derived materials comprises three adsorption columns and a flow-control arrangement which permits separation of both aromatic and polar hydrocarbons by use of two eluent streams.

  16. Cash Flow and Discount Rate news estimation: which method to choose?

    E-Print Network [OSTI]

    Khimich, Natalya V.

    2012-01-01

    form the VAR method . Implied Cost of Capital estimates byP. , 2007. Estimating the cost of capital implied by marketToward an implied cost of capital. Journal of Accounting

  17. The development and implementation of a cash flow decision support system 

    E-Print Network [OSTI]

    Kilcoyne, Suzanne Jo

    1983-01-01

    Inflation Considerations, Graphic Display . PROJECT ANALYSIS EXAMPLE . CONCLUSIONS REFERENCES SUPPLEMENTAL SOURCES CONSULTED 9 9 16 20 20 22 23 30 31 APPENDIX A-- Users Guide to Project Economic Analysis System, 32 APPENDIX B -- Project... PRINT TAB(15)'1 PROJECT ECONOMIC ANALYSIS SYSTEM 5' 7 PRIN7 TAB!15) "f t' 8 PRINT 748(&5)'ttfttttftfttttttffttfttttttttttttttttttttftfttftttttttt' 9 PRIkT:PRINT:PRINT TAB(20)' NRITTEM BY SUIANNE KILCOYNE 45)O LELAND BL4NK &0 PRINT:PRINT:PRINT TAB(30...

  18. ESPC Overview: Cash Flows, Scenarios, and Associated Diagrams for Energy Savings Performance Contracts

    SciTech Connect (OSTI)

    Tetreault, T.; Regenthal, S.

    2011-05-01

    This document is meant to inform state and local decision makers about the process of energy savings performance contracts, and how projected savings and allocated energy-related budgets can be impacted by changes in utility prices.

  19. ESPC Overview. Cash Flows, Scenarios, and Associated Diagrams for Energy Savings Performance Contracts

    SciTech Connect (OSTI)

    Tetreault, T.; Regenthal, S.

    2011-05-01

    This document is meant to inform state and local decision makers about the process of energy savings performance contracts, and how projected savings and allocated energy-related budgets can be impacted by changes in utility prices.

  20. The PV Formula Justified Theorem 1 For a certain cash flow C1, C2, . . . , Cn,

    E-Print Network [OSTI]

    Lyuu, Yuh-Dauh

    Prix pour essai de LA FONDATION P&V Au-delà du déclin 1 Prix pour essai de LA FONDATION P&V Au FONDATION P&V Au-delà du déclin 2 - démontrer comment la société peut réinvestir le champ de l

  1. Valuation of Solar Photovoltaic Systems Using a Discounted Cash Flow Approach

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home RoomPreservationBio-Inspired SolarAbout /Two0 -Using supercritical carbonValgrindandValuation of

  2. General Accounting Petty cash Account 10610 Change Custodian Revised: 10/15/2008

    E-Print Network [OSTI]

    Meyers, Steven D.

    General Accounting Petty cash Account 10610 Change Custodian Revised: 10/15/2008 University Controller's Office - General Accounting REQUEST TO CHANGE CUSTODIAN Date From: To: General Accounting. Accountable Officer Date Please note that this fund was issued to the named custodian above and cannot

  3. Oklahoma State University Policy and Procedures COLLECTIONS, DEPOSIT AND CONTROL OF CASH

    E-Print Network [OSTI]

    Veiga, Pedro Manuel Barbosa

    Oklahoma State University Policy and Procedures COLLECTIONS, DEPOSIT AND CONTROL OF CASH OR CHECKS RECEIVED IN THE NAME OF OKLAHOMA STATE UNIVERSITY 3-0331 ADMINISTRATION & FINANCE May 2008 POLICY AND STATE LAW 1.01 All collections made or receipts received in the name of Oklahoma State University (OSU

  4. Labour's Record on Cash Transfers, Poverty, Inequality and the Lifecycle 1997 -2010

    E-Print Network [OSTI]

    Banaji,. Murad

    Labour's Record on Cash Transfers, Poverty, Inequality and the Lifecycle 1997 - 2010 John Hills changes in the UK since 2007, particularly their impact on the distribution of wealth, poverty, income, charting their approach and assessing their impact on the distribution of outcomes and on poverty

  5. Micro acoustic spectrum analyzer

    DOE Patents [OSTI]

    Schubert, W. Kent; Butler, Michael A.; Adkins, Douglas R.; Anderson, Larry F.

    2004-11-23

    A micro acoustic spectrum analyzer for determining the frequency components of a fluctuating sound signal comprises a microphone to pick up the fluctuating sound signal and produce an alternating current electrical signal; at least one microfabricated resonator, each resonator having a different resonant frequency, that vibrate in response to the alternating current electrical signal; and at least one detector to detect the vibration of the microfabricated resonators. The micro acoustic spectrum analyzer can further comprise a mixer to mix a reference signal with the alternating current electrical signal from the microphone to shift the frequency spectrum to a frequency range that is a better matched to the resonant frequencies of the microfabricated resonators. The micro acoustic spectrum analyzer can be designed specifically for portability, size, cost, accuracy, speed, power requirements, and use in a harsh environment. The micro acoustic spectrum analyzer is particularly suited for applications where size, accessibility, and power requirements are limited, such as the monitoring of industrial equipment and processes, detection of security intrusions, or evaluation of military threats.

  6. Certain Cash Contributions for Typhoon Haiyan Relief Efforts in the Philippines Can Be Deducted on Your 2013 Tax Return

    E-Print Network [OSTI]

    Gering, Jon C.

    Certain Cash Contributions for Typhoon Haiyan Relief Efforts in the Philippines Can Be Deducted, 2014, and before April 15, 2014, for the relief of victims in the Republic of the Philippines affected

  7. Fractional channel multichannel analyzer

    DOE Patents [OSTI]

    Brackenbush, L.W.; Anderson, G.A.

    1994-08-23

    A multichannel analyzer incorporating the features of the present invention obtains the effect of fractional channels thus greatly reducing the number of actual channels necessary to record complex line spectra. This is accomplished by using an analog-to-digital converter in the asynchronous mode, i.e., the gate pulse from the pulse height-to-pulse width converter is not synchronized with the signal from a clock oscillator. This saves power and reduces the number of components required on the board to achieve the effect of radically expanding the number of channels without changing the circuit board. 9 figs.

  8. Fluorescence analyzer for lignin

    DOE Patents [OSTI]

    Berthold, John W. (Salem, OH); Malito, Michael L. (Hubbard, OH); Jeffers, Larry (Alliance, OH)

    1993-01-01

    A method and apparatus for measuring lignin concentration in a sample of wood pulp or black liquor comprises a light emitting arrangement for emitting an excitation light through optical fiber bundles into a probe which has an undiluted sensing end facing the sample. The excitation light causes the lignin concentration to produce fluorescent emission light which is then conveyed through the probe to analyzing equipment which measures the intensity of the emission light. Measures a This invention was made with Government support under Contract Number DOE: DE-FC05-90CE40905 awarded by the Department of Energy (DOE). The Government has certain rights in this invention.

  9. Motion detector and analyzer

    DOE Patents [OSTI]

    Unruh, W.P.

    1987-03-23

    Method and apparatus are provided for deriving positive and negative Doppler spectrum to enable analysis of objects in motion, and particularly, objects having rotary motion. First and second returned radar signals are mixed with internal signals to obtain an in-phase process signal and a quadrature process signal. A broad-band phase shifter shifts the quadrature signal through 90/degree/ relative to the in-phase signal over a predetermined frequency range. A pair of signals is output from the broad-band phase shifter which are then combined to provide a first side band signal which is functionally related to a negative Doppler shift spectrum. The distinct positive and negative Doppler spectra may then be analyzed for the motion characteristics of the object being examined.

  10. ANALYZER BASICS WHAT IS AN FFT SPECTRUM ANALYZER?

    E-Print Network [OSTI]

    Gustafsson, Torgny

    ANALYZER BASICS 2-1 WHAT IS AN FFT SPECTRUM ANALYZER? The SR760 FFT Spectrum Analyzer takes a time on a spectrum analyzer, the harmonic frequencies and amplitudes are displayed with amazing clarity. Another just the total noise amplitude. On a spectrum analyzer, the noise as a function of frequency

  11. Downhole Fluid Analyzer Development

    SciTech Connect (OSTI)

    Bill Turner

    2006-11-28

    A novel fiber optic downhole fluid analyzer has been developed for operation in production wells. This device will allow real-time determination of the oil, gas and water fractions of fluids from different zones in a multizone or multilateral completion environment. The device uses near infrared spectroscopy and induced fluorescence measurement to unambiguously determine the oil, water and gas concentrations at all but the highest water cuts. The only downhole components of the system are the fiber optic cable and windows. All of the active components--light sources, sensors, detection electronics and software--will be located at the surface, and will be able to operate multiple downhole probes. Laboratory testing has demonstrated that the sensor can accurately determine oil, water and gas fractions with a less than 5 percent standard error. Once installed in an intelligent completion, this sensor will give the operating company timely information about the fluids arising from various zones or multilaterals in a complex completion pattern, allowing informed decisions to be made on controlling production. The research and development tasks are discussed along with a market analysis.

  12. UMBC Policy # UMBC VIII-7.12 Page 1 of 2 UMBC POLICY CONCERNING WORKING FUND/ PETTY CASH/CHANGE FUNDS

    E-Print Network [OSTI]

    Suri, Manil

    UMBC Policy # UMBC VIII-7.12 Page 1 of 2 UMBC POLICY CONCERNING WORKING FUND/ PETTY CASH/CHANGE FUNDS UMBC Policy # UMBC VIII-7.12 I. POLICY STATEMENT This policy on the working fund/petty cash/change funds is intended to define the conditions for such funds. II. PURPOSE FOR POLICY This policy

  13. Potential Flow Calculations of Axisymmetric Ducted Wind Turbines

    E-Print Network [OSTI]

    Widnall, Sheila

    2009-09-02

    An incompressible potential-flow vortex method has been constructed to analyze the flow field of a ducted

  14. Rotor for centrifugal fast analyzers

    DOE Patents [OSTI]

    Lee, N.E.

    1984-01-01

    The invention is an improved photometric analyzer of the rotary cuvette type, the analyzer incorporating a multicuvette rotor of novel design. The rotor (a) is leaktight, (b) permits operation in the 90/sup 0/ and 180/sup 0/ excitation modes, (c) is compatible with extensively used Centrifugal Fast Analyzers, and (d) can be used thousands of times. The rotor includes an assembly comprising a top plate, a bottom plate, and a central plate, the rim of the central plate being formed with circumferentially spaced indentations. A uv-transmitting ring is sealably affixed to the indented rim to define with the indentations an array of cuvettes. The ring serves both as a sealing means and an end window for the cuvettes.

  15. Rotor for centrifugal fast analyzers

    DOE Patents [OSTI]

    Lee, Norman E. (Knoxville, TN)

    1985-01-01

    The invention is an improved photometric analyzer of the rotary cuvette type, the analyzer incorporating a multicuvette rotor of novel design. The rotor (a) is leaktight, (b) permits operation in the 90.degree. and 180.degree. excitation modes, (c) is compatible with extensively used Centrifugal Fast Analyzers, and (d) can be used thousands of times. The rotor includes an assembly comprising a top plate, a bottom plate, and a central plate, the rim of the central plate being formed with circumferentially spaced indentations. A UV-transmitting ring is sealably affixed to the indented rim to define with the indentations an array of cuvettes. The ring serves both as a sealing means and an end window for the cuvettes.

  16. Real time infrared aerosol analyzer

    DOE Patents [OSTI]

    Johnson, Stanley A. (Countryside, IL); Reedy, Gerald T. (Bourbonnais, IL); Kumar, Romesh (Naperville, IL)

    1990-01-01

    Apparatus for analyzing aerosols in essentially real time includes a virtual impactor which separates coarse particles from fine and ultrafine particles in an aerosol sample. The coarse and ultrafine particles are captured in PTFE filters, and the fine particles impact onto an internal light reflection element. The composition and quantity of the particles on the PTFE filter and on the internal reflection element are measured by alternately passing infrared light through the filter and the internal light reflection element, and analyzing the light through infrared spectrophotometry to identify the particles in the sample.

  17. Development of BWR plant analyzer

    SciTech Connect (OSTI)

    Wulff, W.; Cheng, H.S.; Lekach, S.V.; Stritar, A.; Mallen, A.N.

    1984-01-01

    The BWR Plant Analyzer has been developed for realistic and accurate simulations of normal and severe abnormal transients in BWR power plants at high simulation speeds, low capital and operating costs and with outstanding user conveniences. The simulation encompasses neutron kinetics, heat conduction in fuel structures, nonequilibrium, nonhomogeneous coolant dynamics, steam line acoustics, and the dynamics of turbines, condensers, feedwater pumps and heaters, of the suppression pool, the control systems and the plant protection systems. These objectives have been achieved. Advanced modeling, using extensively analytical integration and dynamic evaluation of analytical solutions, has been combined with modern minicomputer technology for high-speed simulation of complex systems. The High-Speed Interactive Plant Analyzer code HIPA-BWR has been implemented on the AD10 peripheral parallel processor.

  18. Truck acoustic data analyzer system

    DOE Patents [OSTI]

    Haynes, Howard D.; Akerman, Alfred; Ayers, Curtis W.

    2006-07-04

    A passive vehicle acoustic data analyzer system having at least one microphone disposed in the acoustic field of a moving vehicle and a computer in electronic communication the microphone(s). The computer detects and measures the frequency shift in the acoustic signature emitted by the vehicle as it approaches and passes the microphone(s). The acoustic signature of a truck driving by a microphone can provide enough information to estimate the truck speed in miles-per-hour (mph), engine speed in rotations-per-minute (RPM), turbocharger speed in RPM, and vehicle weight.

  19. LANL analyzes meteor fragments nondestructively

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room NewsInformationJesse Bergkamp Graduate student Subtask2 J.N. Shadid,1 Select StartLANL analyzes

  20. Anisotropic flow

    E-Print Network [OSTI]

    S. A. Voloshin

    2002-11-20

    Recent experimental results on directed and elliptic flow, theoretical developments, and new techniques for anisotropic flow analysis are reviewed.

  1. Multiple capillary biochemical analyzer with barrier member

    DOE Patents [OSTI]

    Dovichi, Norman J. (Edmonton, CA); Zhang, Jian Z. (Edmonton, CA)

    1996-01-01

    A multiple capillary biochemical analyzer for sequencing DNA and performing other analyses, in which a set of capillaries extends from wells in a microtiter plate into a cuvette. In the cuvette the capillaries are held on fixed closely spaced centers by passing through a sandwich construction having a pair of metal shims which squeeze between them a rubber gasket, forming a leak proof seal for an interior chamber in which the capillary ends are positioned. Sheath fluid enters the chamber and entrains filament sample streams from the capillaries. The filament sample streams, and sheath fluid, flow through aligned holes in a barrier member spaced close to the capillary ends, into a collection chamber having a lower glass window. The filament streams are illuminated above the barrier member by a laser, causing them to fluoresce. The fluorescence is viewed end-on by a CCD camera chip located below the glass window. The arrangement ensures an equal optical path length from all fluorescing spots to the CCD chip and also blocks scattered fluorescence illumination, providing more uniform results and an improved signal to noise ratio.

  2. Multiple capillary biochemical analyzer with barrier member

    DOE Patents [OSTI]

    Dovichi, N.J.; Zhang, J.Z.

    1996-10-22

    A multiple capillary biochemical analyzer is disclosed for sequencing DNA and performing other analyses, in which a set of capillaries extends from wells in a microtiter plate into a cuvette. In the cuvette the capillaries are held on fixed closely spaced centers by passing through a sandwich construction having a pair of metal shims which squeeze between them a rubber gasket, forming a leak proof seal for an interior chamber in which the capillary ends are positioned. Sheath fluid enters the chamber and entrains filament sample streams from the capillaries. The filament sample streams, and sheath fluid, flow through aligned holes in a barrier member spaced close to the capillary ends, into a collection chamber having a lower glass window. The filament streams are illuminated above the barrier member by a laser, causing them to fluoresce. The fluorescence is viewed end-on by a CCD camera chip located below the glass window. The arrangement ensures an equal optical path length from all fluorescing spots to the CCD chip and also blocks scattered fluorescence illumination, providing more uniform results and an improved signal-to-noise ratio. 12 figs.

  3. Calibration Guide Agilent Technologies ESA Spectrum Analyzers

    E-Print Network [OSTI]

    Anlage, Steven

    Calibration Guide Agilent Technologies ESA Spectrum Analyzers This manual provides documentation periodically. For the latest information about Agilent ESA Spectrum Analyzers, including firmware upgrades

  4. WP05 Labour's record on cash transfers, poverty, inequality and the lifecycle 1997-2010 Labour's Record on Neighbourhood Renewal in

    E-Print Network [OSTI]

    Banaji,. Murad

    WP05 Labour's record on cash transfers, poverty, inequality and the lifecycle 1997-2010 Labour of wealth, poverty, income inequality and spatial difference. The full programme of analysis will include and on poverty and inequality particularly. This provides a baseline for analysing and understanding the changes

  5. THE MULTICHANNEL ANALYZER PHYSICS 359E

    E-Print Network [OSTI]

    Landstreet, John D.

    .e. a pulse height spectrum. The range of pulse heights to be analyzed can be set via upper and lower levelTHE MULTICHANNEL ANALYZER PHYSICS 359E INTRODUCTION The multichannel analyzer (MCA) is an important in two different modes: pulse height analyzer (PHA) mode, and multichannel scaler (MCS) mode. In PHA mode

  6. Expert system for analyzing eddy current measurements

    DOE Patents [OSTI]

    Levy, Arthur J. (Schenectady, NY); Oppenlander, Jane E. (Scotia, NY); Brudnoy, David M. (Albany, NY); Englund, James M. (Clifton Park, NY); Loomis, Kent C. (Clifton Park, NY)

    1994-01-01

    A method and apparatus (called DODGER) analyzes eddy current data for heat exchanger tubes or any other metallic object. DODGER uses an expert system to analyze eddy current data by reasoning with uncertainty and pattern recognition. The expert system permits DODGER to analyze eddy current data intelligently, and obviate operator uncertainty by analyzing the data in a uniform and consistent manner.

  7. Pulsed Neurton Elemental On-Line Material Analyzer

    DOE Patents [OSTI]

    Vourvopoulos, George (Bowling Green, KY)

    2002-08-20

    An on-line material analyzer which utilizes pulsed neutron generation in order to determine the composition of material flowing through the apparatus. The on-line elemental material analyzer is based on a pulsed neutron generator. The elements in the material interact with the fast and thermal neutrons produced from the pulsed generator. Spectra of gamma-rays produced from fast neutrons interacting with elements of the material are analyzed and stored separately from spectra produced from thermal neutron reactions. Measurements of neutron activation takes place separately from the above reactions and at a distance from the neutron generator. A primary passageway allows the material to flow through at a constant rate of speed and operators to provide data corresponding to fast and thermal neutron reactions. A secondary passageway meters the material to allow for neutron activation analysis. The apparatus also has the capability to determine the density of the flowed material. Finally, the apparatus continually utilizes a neutron detector in order to normalize the yield of the gamma ray detectors and thereby automatically calibrates and adjusts the spectra data for fluctuations in neutron generation.

  8. PoroTomo Subtask 3.7 Analyzed Data

    DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

    Thomas Coleman

    Analyzed DTS datasets from active heat injection experiments in Guelph, ON Canada is included. A .pdf file of images including borehole temperature distributions, temperature difference distributions, temperature profiles, and flow interpretations is included as the primary analyzed dataset. Analyzed data used to create the .pdf images are included as a matlab data file that contains the following 5 types of data: 1) Borehole Temperature (matrix of temperature data collected in the borehole), 2) Borehole Temperature Difference (matrix of temperature difference above ambient for each test), 3) Borehole Time (time in both min and sec since the start of a DTS test), 4) Borehole Depth (channel depth locations for the DTS measurements), 5) Temperature Profiles (ambient, active, active off early time, active off late time, and injection).

  9. PoroTomo Subtask 3.7 Analyzed Data

    DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

    Thomas Coleman

    2015-06-24

    Analyzed DTS datasets from active heat injection experiments in Guelph, ON Canada is included. A .pdf file of images including borehole temperature distributions, temperature difference distributions, temperature profiles, and flow interpretations is included as the primary analyzed dataset. Analyzed data used to create the .pdf images are included as a matlab data file that contains the following 5 types of data: 1) Borehole Temperature (matrix of temperature data collected in the borehole), 2) Borehole Temperature Difference (matrix of temperature difference above ambient for each test), 3) Borehole Time (time in both min and sec since the start of a DTS test), 4) Borehole Depth (channel depth locations for the DTS measurements), 5) Temperature Profiles (ambient, active, active off early time, active off late time, and injection).

  10. Agilent AN 1318 Optimizing Spectrum Analyzer

    E-Print Network [OSTI]

    Anlage, Steven

    Agilent AN 1318 Optimizing Spectrum Analyzer Measurement Speed Application Note Agilent ESA-E Series #12;2 Why speed matters The measurement speed of your spectrum analyzer can significantly affect for the spectrum analyzer to warm up to make calibrated measurements. · R&D finally receives the new project

  11. Getting Started Guide ESA Series Spectrum Analyzers

    E-Print Network [OSTI]

    Anlage, Steven

    Getting Started Guide ESA Series Spectrum Analyzers This manual provides documentation yourself with the symbols and their meaning before operating this analyzer. WARNING Warning denotes, if not correctly performed or adhered to, could result in damage to or destruction of the analyzer. Do not proceed

  12. Web-based multi-channel analyzer

    DOE Patents [OSTI]

    Gritzo, Russ E.

    2003-12-23

    The present invention provides an improved multi-channel analyzer designed to conveniently gather, process, and distribute spectrographic pulse data. The multi-channel analyzer may operate on a computer system having memory, a processor, and the capability to connect to a network and to receive digitized spectrographic pulses. The multi-channel analyzer may have a software module integrated with a general-purpose operating system that may receive digitized spectrographic pulses for at least 10,000 pulses per second. The multi-channel analyzer may further have a user-level software module that may receive user-specified controls dictating the operation of the multi-channel analyzer, making the multi-channel analyzer customizable by the end-user. The user-level software may further categorize and conveniently distribute spectrographic pulse data employing non-proprietary, standard communication protocols and formats.

  13. Analyzing Clickstreams Using Subsessions Jesper Andersen

    E-Print Network [OSTI]

    Song, Il-Yeol

    at a large Danish mortgage provider. The paper first de- scribes clickstream data and its usefulness in the company's web system architecture. 1. INTRODUCTION The opportunities in analyzing web log data are quickly to perform the personalization automati- cally, the web system has to analyze the user's previous behav- ior

  14. On-line chemical composition analyzer development

    SciTech Connect (OSTI)

    Garrison, A.A.

    1993-01-01

    This report relates to the development of an on-line Raman analyzer for control of a distillation column. It is divided into: program issues, experimental control system evaluation, energy savings analysis, and reliability analysis. (DLC)

  15. Flow chamber

    DOE Patents [OSTI]

    Morozov, Victor (Manassas, VA)

    2011-01-18

    A flow chamber having a vacuum chamber and a specimen chamber. The specimen chamber may have an opening through which a fluid may be introduced and an opening through which the fluid may exit. The vacuum chamber may have an opening through which contents of the vacuum chamber may be evacuated. A portion of the flow chamber may be flexible, and a vacuum may be used to hold the components of the flow chamber together.

  16. Geological flows

    E-Print Network [OSTI]

    Yu. N. Bratkov

    2008-11-19

    In this paper geology and planetology are considered using new conceptual basis of high-speed flow dynamics. Recent photo technics allow to see all details of a flow, 'cause the flow is static during very short time interval. On the other hand, maps and images of many planets are accessible. Identity of geological flows and high-speed gas dynamics is demonstrated. There is another time scale, and no more. All results, as far as the concept, are new and belong to the author. No formulae, pictures only.

  17. Flow regimes

    SciTech Connect (OSTI)

    Liles, D.R.

    1982-01-01

    Internal boundaries in multiphase flow greatly complicate fluid-dynamic and heat-transfer descriptions. Different flow regimes or topological configurations can have radically dissimilar interfacial and wall mass, momentum, and energy exchanges. To model the flow dynamics properly requires estimates of these rates. In this paper the common flow regimes for gas-liquid systems are defined and the techniques used to estimate the extent of a particular regime are described. Also, the current computer-code procedures are delineated and introduce a potentially better method is introduced.

  18. Analyzing the Stability ofAnalyzing the Stability of --Carotene and PVCarotene and PV--1919

    E-Print Network [OSTI]

    Petta, Jason

    Analyzing the Stability ofAnalyzing the Stability of --Carotene and PVCarotene and PV--1919 nanoparticles #12;Goals of Second ProjectGoals of Second Project Study of PVStudy of PV--1919 --Determine

  19. SmartAnalyzer: A Noninvasive Security Threat Analyzer for AMI Smart Grid

    E-Print Network [OSTI]

    Wang, Yongge

    SmartAnalyzer: A Noninvasive Security Threat Analyzer for AMI Smart Grid Mohammad Ashiqur Rahman) is the core component in the smart grid that exhibits a highly complex network configuration comprising configuration in order to verify the potential threats. In this paper, we present SmartAnalyzer, a security

  20. In-situ continuous water analyzing module

    DOE Patents [OSTI]

    Thompson, Cyril V. (Knoxville, TN); Wise, Marcus B. (Kingston, TN)

    1998-01-01

    An in-situ continuous liquid analyzing system for continuously analyzing volatile components contained in a water source comprises: a carrier gas supply, an extraction container and a mass spectrometer. The carrier gas supply continuously supplies the carrier gas to the extraction container and is mixed with a water sample that is continuously drawn into the extraction container. The carrier gas continuously extracts the volatile components out of the water sample. The water sample is returned to the water source after the volatile components are extracted from it. The extracted volatile components and the carrier gas are delivered continuously to the mass spectometer and the volatile components are continuously analyzed by the mass spectrometer.

  1. Frequency spectrum analyzer with phase-lock

    DOE Patents [OSTI]

    Boland, Thomas J. (Idaho Falls, ID)

    1984-01-01

    A frequency-spectrum analyzer with phase-lock for analyzing the frequency and amplitude of an input signal is comprised of a voltage controlled oscillator (VCO) which is driven by a ramp generator, and a phase error detector circuit. The phase error detector circuit measures the difference in phase between the VCO and the input signal, and drives the VCO locking it in phase momentarily with the input signal. The input signal and the output of the VCO are fed into a correlator which transfers the input signal to a frequency domain, while providing an accurate absolute amplitude measurement of each frequency component of the input signal.

  2. BWR plant analyzer development at BNL

    SciTech Connect (OSTI)

    Cheng, H.S.; Wulff, W.; Mallen, A.N.; Lekach, S.V.; Stritar, A.; Cerbone, R.J.

    1985-01-01

    Advanced technology for high-speed interactive nuclear power plant simulations is of great value for timely resolution of safety issues, for plant monitoring, and for computer-aided emergency responses to an accident. Presented is the methodology employed at BNL to develop a BWR plant analyzer capable of simulating severe plant transients at much faster than real-time process speeds. Five modeling principles are established and a criterion is given for selecting numerical procedures and efficient computers to achieve the very high simulation speeds. Typical results are shown to demonstrate the modeling fidelity of the BWR plant analyzer.

  3. Fluidization quality analyzer for fluidized beds

    DOE Patents [OSTI]

    Daw, C. Stuart (Knoxville, TN); Hawk, James A. (Oak Ridge, TN)

    1995-01-01

    A control loop and fluidization quality analyzer for a fluidized bed utilizes time varying pressure drop measurements. A fast-response pressure transducer measures the overall bed pressure drop, or over some segment of the bed, and the pressure drop signal is processed to produce an output voltage which changes with the degree of fluidization turbulence.

  4. Fluidization quality analyzer for fluidized beds

    DOE Patents [OSTI]

    Daw, C.S.; Hawk, J.A.

    1995-07-25

    A control loop and fluidization quality analyzer for a fluidized bed utilizes time varying pressure drop measurements. A fast-response pressure transducer measures the overall bed pressure drop, or over some segment of the bed, and the pressure drop signal is processed to produce an output voltage which changes with the degree of fluidization turbulence. 9 figs.

  5. Cash for Coolers

    E-Print Network [OSTI]

    Davis, Lucas W.; Fuchs, Alan; Gertler, Paul J.

    2012-01-01

    cost for these electricity consumption. U.S. DOE (2011b), p.replacement reduces electricity consumption by an average ofcontrast, increases electricity consumption by an average of

  6. Cash for Coolers

    E-Print Network [OSTI]

    Davis, Lucas W.; Fuchs, Alan; Gertler, Paul J.

    2012-01-01

    Fowlie. 2008. “Demand Side Management and Energy-efficiencyKulick. 2004. “Demand-Side Management and Energy- efficiency

  7. Cash for Coolers

    E-Print Network [OSTI]

    Davis, Lucas W.; Fuchs, Alan; Gertler, Paul J.

    2012-01-01

    Durable Goods and Residential Demand for Energy and Water:Technologies: A Study of Residential Demand for Heating andcan affect residential energy demand. Another important

  8. Cash for Coolers

    E-Print Network [OSTI]

    Davis, Lucas W.; Fuchs, Alan; Gertler, Paul J.

    2012-01-01

    a 7% decrease. We find that air conditioning replacement, inwe find that air-conditioning replacement actually increaseslevel of production of air- conditioning. In the empirical

  9. Cash for Coolers

    E-Print Network [OSTI]

    Davis, Lucas W.; Fuchs, Alan; Gertler, Paul J.

    2012-01-01

    energy-efficiency. In contrast a household can easily adjust the level of utilization of air-conditioning.energy-efficiency has improved 13% over the last ten years. 43 Absent any change in utilization, therefore, air-conditioning

  10. Chapter 06 - Cash

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirley Ann JacksonDepartment|Marketing, LLCEfficiencyCOP 21:Department of Chairs Chapter1 Chapter

  11. U.S. Residential Photovoltaic (PV) System Prices, Q4 2013 Benchmarks: Cash Purchase, Fair Market Value, and Prepaid Lease Transaction Prices

    SciTech Connect (OSTI)

    Davidson, C.; James, T. L.; Margolis, R.; Fu, R.; Feldman, D.

    2014-10-01

    The price of photovoltaic (PV) systems in the United States (i.e., the cost to the system owner) has dropped precipitously in recent years, led by substantial reductions in global PV module prices. This report provides a Q4 2013 update for residential PV systems, based on an objective methodology that closely approximates the book value of a PV system. Several cases are benchmarked to represent common variation in business models, labor rates, and module choice. We estimate a weighted-average cash purchase price of $3.29/W for modeled standard-efficiency, polycrystalline-silicon residential PV systems installed in the United States. This is a 46% decline from the 2013-dollar-adjusted price reported in the Q4 2010 benchmark report. In addition, this report frames the cash purchase price in the context of key price metrics relevant to the continually evolving landscape of third-party-owned PV systems by benchmarking the minimum sustainable lease price and the fair market value of residential PV systems.

  12. Real-time airborne particle analyzer

    DOE Patents [OSTI]

    Reilly, Peter T.A.

    2012-10-16

    An aerosol particle analyzer includes a laser ablation chamber, a gas-filled conduit, and a mass spectrometer. The laser ablation chamber can be operated at a low pressure, which can be from 0.1 mTorr to 30 mTorr. The ablated ions are transferred into a gas-filled conduit. The gas-filled conduit reduces the electrical charge and the speed of ablated ions as they collide and mix with buffer gases in the gas-filled conduit. Preferably, the gas filled-conduit includes an electromagnetic multipole structure that collimates the nascent ions into a beam, which is guided into the mass spectrometer. Because the gas-filled conduit allows storage of vast quantities of the ions from the ablated particles, the ions from a single ablated particle can be analyzed multiple times and by a variety of techniques to supply statistically meaningful analysis of composition and isotope ratios.

  13. Real time speech formant analyzer and display

    DOE Patents [OSTI]

    Holland, G.E.; Struve, W.S.; Homer, J.F.

    1987-02-03

    A speech analyzer for interpretation of sound includes a sound input which converts the sound into a signal representing the sound. The signal is passed through a plurality of frequency pass filters to derive a plurality of frequency formants. These formants are converted to voltage signals by frequency-to-voltage converters and then are prepared for visual display in continuous real time. Parameters from the inputted sound are also derived and displayed. The display may then be interpreted by the user. The preferred embodiment includes a microprocessor which is interfaced with a television set for displaying of the sound formants. The microprocessor software enables the sound analyzer to present a variety of display modes for interpretive and therapeutic used by the user. 19 figs.

  14. 2.853 Manufacturing Systems I: Analytical Methods and Flow Models, Fall 2002

    E-Print Network [OSTI]

    Gershwin, S. B.

    Provides ways to conceptualize and analyze manufacturing systems and supply chains in terms of material flow, information flow, capacities, and flow times. Fundamental building blocks: Inventory and Queuing Models, Forecasting ...

  15. Automated identification of terminal area air traffic flows and weather related deviations

    E-Print Network [OSTI]

    Ng, Tony M. Eng. Massachusetts Institute of Technology

    2008-01-01

    Air traffic in terminal air space is very complex, making it very difficult to identify air traffic flows. Finding air traffic flows and flow boundaries are very helpful in analyzing how air traffic would react to weather. ...

  16. Cavity-Enhanced Gas Analyzer for Process Control | Department...

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

    Cavity-Enhanced Gas Analyzer for Process Control Cavity-Enhanced Gas Analyzer for Process Control Ultrasensitive Analyzer Provides Real-Time Quantification of Acetylene and Reduces...

  17. Analyzing PICL trace data with MEDEA

    SciTech Connect (OSTI)

    Merlo, A.P.; Worley, P.H.

    1994-04-01

    Execution traces and performance statistics can be collected for parallel applications on a variety of multiprocessor platforms by using the Portable Instrumented Communication Library (PICL). The static and dynamic performance characteristics of performance characteristics of performance data can be analyzed easily and effectively with the facilities provided within the MEasurements Description Evaluation and Analysis tool (MEDEA). A case study is then outlined that uses PICL and MEDEA to characterize the performance of a parallel benchmark code executed on different hardware platforms and using different parallel algorithms and communication protocols.

  18. Analyzing PICL trace data with MEDEA

    SciTech Connect (OSTI)

    Merlo, A.P.; Worley, P.H.

    1993-11-01

    Execution traces and performance statistics can be collected for parallel applications on a variety of multiprocessor platforms by using the Portable Instrumented Communication Library (PICL). The static and dynamic performance characteristics of performance data can be analyzed easily and effectively with the facilities provided within the MEasurements Description Evaluation and Analysis tool (MEDEA). This report describes the integration of the PICL trace file format into MEDEA. A case study is then outlined that uses PICL and MEDEA to characterize the performance of a parallel benchmark code executed on different hardware platforms and using different parallel algorithms and communication protocols.

  19. Light-weight analyzer for odor recognition

    DOE Patents [OSTI]

    Vass, Arpad A; Wise, Marcus B

    2014-05-20

    The invention provides a light weight analyzer, e.g., detector, capable of locating clandestine graves. The detector utilizes the very specific and unique chemicals identified in the database of human decompositional odor. This detector, based on specific chemical compounds found relevant to human decomposition, is the next step forward in clandestine grave detection and will take the guess-work out of current methods using canines and ground-penetrating radar, which have historically been unreliable. The detector is self contained, portable and built for field use. Both visual and auditory cues are provided to the operator.

  20. Analyzing the Impact of Beliefs in Software Project Practices Carol Passos

    E-Print Network [OSTI]

    Analyzing the Impact of Beliefs in Software Project Practices Carol Passos SOLUTIS Tecnologias their practices. This information flow generates technical folklore and beliefs (that do not have a formal trial basis). Software engineers applying practices are influenced by these and they are inevitably taken

  1. Evolution of analyzing reservoir simulation data

    SciTech Connect (OSTI)

    Phelps, R.E.; Huang, A.Y.

    1994-12-31

    Numerical Reservoir Simulation is routinely used by the petroleum producing companies world-wide as an engineering tool to efficiently manage their hydrocarbon reservoirs. The task of building models with a large number of grid-blocks is not easy, and to analyze the voluminous results produced by such models is even more difficult. This paper discusses the historical evolution of techniques used to analyze reservoir simulation data over the past decade. It outlines how the advancement of workstation technology and the introduction of X-Window System opened up an entirely new way of utilizing mainframe computing power and workstation graphical display capabilities, simultaneously. The paper also discusses Saudi Aramco`s experience in the development of sophisticated reservoir simulation post-processing packages. The need for direct communication between the programmer and end-users to facilitate a user-friendly package is emphasized. A practical example illustrating the benefit of these post-processing packages in the construction and history matching of a large model with approximately 52,000 cells is presented. Savings in manpower and computer resources using current technology are estimated.

  2. Evolution of analyzing reservoir simulation data

    SciTech Connect (OSTI)

    Phelps, R.E.; Huang, A.Y.

    1995-12-01

    Petroleum-producing companies world-wide routinely use numerical reservoir simulation as an engineering tool to manage their hydrocarbon reservoirs efficiently. The task of building models with a large number of gridblocks is not easy, and analyzing the voluminous results produced by such models is even more difficult. This paper discusses the historical evolution of techniques used to analyze reservoir simulation data over the past decade. It outlines how the advancement of workstation technology and the introduction of an X-Window system opened up an entirely new way of using mainframe computing power and workstation graphical display capabilities simultaneously. The paper also discusses Saudi Aramco`s experience in the development of sophisticated reservoir simulation postprocessing packages. The authors emphasize the need for direct communication between the programmer and end users to facilitate a user-friendly package. They present a practical example illustrating the benefit of these postprocessing packages in the construction and history matching of a large model with approximately 52,000 cells. They estimate savings in manpower and computer resources using current technology.

  3. Network Analyzer Basics This presentation covers the principles

    E-Print Network [OSTI]

    Anlage, Steven

    one-box) testers VSA Vector signal analyzer SA Spectrum analyzer VNA Vector signal analyzer TG/SA Tracking generator/spectrum analyzer SNA Scalar network analyzer NF Mtr. Noise-figure meter Imped. AnAgilent Network Analyzer Basics #12;2 Abstract This presentation covers the principles of measuring

  4. Analyzing Options for Airborne Emergency Wireless Communications

    SciTech Connect (OSTI)

    Michael Schmitt; Juan Deaton; Curt Papke; Shane Cherry

    2008-03-01

    In the event of large-scale natural or manmade catastrophic events, access to reliable and enduring commercial communication systems is critical. Hurricane Katrina provided a recent example of the need to ensure communications during a national emergency. To ensure that communication demands are met during these critical times, Idaho National Laboratory (INL) under the guidance of United States Strategic Command has studied infrastructure issues, concerns, and vulnerabilities associated with an airborne wireless communications capability. Such a capability could provide emergency wireless communications until public/commercial nodes can be systematically restored. This report focuses on the airborne cellular restoration concept; analyzing basic infrastructure requirements; identifying related infrastructure issues, concerns, and vulnerabilities and offers recommended solutions.

  5. Method for network analyzation and apparatus

    DOE Patents [OSTI]

    Bracht, Roger B. (25969 Highway 4, Jemez Springs, NM 87025); Pasquale, Regina V. (587 Grand Canyon, Los Alamos, NM 87544)

    2001-01-01

    A portable network analyzer and method having multiple channel transmit and receive capability for real-time monitoring of processes which maintains phase integrity, requires low power, is adapted to provide full vector analysis, provides output frequencies of up to 62.5 MHz and provides fine sensitivity frequency resolution. The present invention includes a multi-channel means for transmitting and a multi-channel means for receiving, both in electrical communication with a software means for controlling. The means for controlling is programmed to provide a signal to a system under investigation which steps consecutively over a range of predetermined frequencies. The resulting received signal from the system provides complete time domain response information by executing a frequency transform of the magnitude and phase information acquired at each frequency step.

  6. 73M.A. Khan et al. (eds.), Sabkha Ecosystems: Volume IV: Cash Crop Halophyte and Biodiversity Conservation, Tasks for Vegetation Science 47, DOI 10.1007/978-94-007-7411-7_5,

    E-Print Network [OSTI]

    Smith, Steven E.

    73M.A. Khan et al. (eds.), Sabkha Ecosystems: Volume IV: Cash Crop Halophyte and Biodiversity Conservation, Tasks for Vegetation Science 47, DOI 10.1007/978-94-007-7411-7_5, © Springer Science+Business Media Dordrecht 2014 Abstract We discuss the process of domesticating wild halophytes to serve as crop

  7. Network With Costs: Timing and Flow Decomposition

    E-Print Network [OSTI]

    Ho, Tracey

    Network With Costs: Timing and Flow Decomposition Shreeshankar Bodas, Jared Grubb, Sriram Sridharan-- This paper analyzes a capacitated network with costs from an information theoretic point of view. Determines a flow decomposition for a network with costs starting from an information theoretic point of view

  8. Polymerase chain reaction system using magnetic beads for analyzing a sample that includes nucleic acid

    DOE Patents [OSTI]

    Nasarabadi, Shanavaz (Livermore, CA)

    2011-01-11

    A polymerase chain reaction system for analyzing a sample containing nucleic acid includes providing magnetic beads; providing a flow channel having a polymerase chain reaction chamber, a pre polymerase chain reaction magnet position adjacent the polymerase chain reaction chamber, and a post pre polymerase magnet position adjacent the polymerase chain reaction chamber. The nucleic acid is bound to the magnetic beads. The magnetic beads with the nucleic acid flow to the pre polymerase chain reaction magnet position in the flow channel. The magnetic beads and the nucleic acid are washed with ethanol. The nucleic acid in the polymerase chain reaction chamber is amplified. The magnetic beads and the nucleic acid are separated into a waste stream containing the magnetic beads and a post polymerase chain reaction mix containing the nucleic acid. The reaction mix containing the nucleic acid flows to an analysis unit in the channel for analysis.

  9. Flow cytometer

    DOE Patents [OSTI]

    Van den Engh, G.

    1995-11-07

    A Faraday cage is described which encloses the flow chamber of a cytometer. Ground planes associated with each field deflection plate inhibit electric fields from varying the charge on designated events/droplets and further concentrates. They also increase forces applied to a passing charged event for accurate focus while concomitantly inhibiting a potential shock hazard. 4 figs.

  10. Uncertain Growth Cycles, Corporate Investment, and Dynamic Hedging

    E-Print Network [OSTI]

    Yonce, Adam

    2010-01-01

    Capital Expenditures CapEx + Acquisitions Cash Flow Tobin’sCapital Expenditures CapEx + Acquisitions Cash Flow Tobin’sCapital Expenditures CapEx + Acquisitions Cash Flow Tobin’s

  11. Analyzing Design Heating Loads in Superinsulated Buildings

    SciTech Connect (OSTI)

    Arena, Lois

    2015-06-16

    The U.S. Department of Energy’s Building America research team Consortium for Advanced Residential Buildings (CARB) worked with the EcoVillage cohousing community in Ithaca, New York, on the Third Residential EcoVillage Experience neighborhood. This communityscale project consists of 40 housing units—15 apartments and 25 single-family residences. Units range in size from 450 ft2 to 1,664 ft2 and cost from $80,000 for a studio apartment to $235,000 for a three- or four-bedroom single-family home. For the research component of this project, CARB analyzed current heating system sizing methods for superinsulated homes in cold climates to determine if changes in building load calculation methodology should be recommended. Actual heating energy use was monitored and compared to results from the Air Conditioning Contractors of America’s Manual J8 (MJ8) and the Passive House Planning Package software. Results from that research indicate that MJ8 significantly oversizes heating systems for superinsulated homes and that thermal inertia and internal gains should be considered for more accurate load calculations.

  12. DistFlow ODE: Modeling, analyzing and controlling long distribution feeder

    E-Print Network [OSTI]

    Wang, Danhua

    We consider a linear feeder connecting multiple distributed loads and generators to the sub-station. Voltage is controlled directly at the sub-station, however, voltage down the line shifts up or down, in particular depending ...

  13. Analyzing flow patterns in unsaturated fractured rock of Yucca Mountain using an integrated modeling approach

    E-Print Network [OSTI]

    Wu, Yu-Shu; Lu, Guoping; Zhang, Keni; Pan, Lehua; Bodvarsson, Gudmundur S.

    2008-01-01

    zone site-scale model, Yucca Mountain Site Characterizationscale model, Yucca Mountain Project Milestone 3GLM105M,lateral diversion at Yucca Mountain, Nevada, Water Resources

  14. Analyzing flow patterns in unsaturated fractured rock of Yucca Mountain using an integrated modeling approach

    E-Print Network [OSTI]

    Wu, Yu-Shu; Lu, Guoping; Zhang, Keni; Pan, Lehua; Bodvarsson, Gudmundur S.

    2008-01-01

    repository at Yucca Mountain, Journal of Hydrology, 209,near a fault zone at Yucca Mountain, SAND87-7070, Sandiasite-scale model of Yucca Mountain, Nevada, LBL-37356,

  15. Wiley book chapter v7 Network Flow Approaches for Analyzing and Managing Disruptions to

    E-Print Network [OSTI]

    Mitchell, John E.

    include the U.S. Patriot Act (2001), The 2002 National Strategy for Homeland Security (Office of Homeland, power, telecommunications and water. These systems are highly dependent on each other to provide service facilities and water supplies. This set of civil infrastructures has also been included in the broader set

  16. A multi-parametric flow cytometric assay to analyze DNA–protein interactions

    E-Print Network [OSTI]

    Arbab, Mandana

    Interactions between DNA and transcription factors (TFs) guide cellular function and development, yet the complexities of gene regulation are still far from being understood. Such understanding is limited by a paucity of ...

  17. Analyzing petabytes of data with Hadoop

    ScienceCinema (OSTI)

    None

    2011-10-06

    Abstract The open source Apache Hadoop project provides a powerful suite of tools for storing and analyzing petabytes of data using commodity hardware. After several years of production use inside of web companies like Yahoo! and Facebook and nearly a year of commercial support and development by Cloudera, the technology is spreading rapidly through other disciplines, from financial services and government to life sciences and high energy physics. The talk will motivate the design of Hadoop and discuss some key implementation details in depth. It will also cover the major subprojects in the Hadoop ecosystem, go over some example applications, highlight best practices for deploying Hadoop in your environment, discuss plans for the future of the technology, and provide pointers to the many resources available for learning more. In addition to providing more information about the Hadoop platform, a major goal of this talk is to begin a dialogue with the ATLAS research team on how the tools commonly used in their environment compare to Hadoop, and how Hadoop could improve better to serve the high energy physics community. Short Biography Jeff Hammerbacher is Vice President of Products and Chief Scientist at Cloudera. Jeff was an Entrepreneur in Residence at Accel Partners immediately prior to founding Cloudera. Before Accel, he conceived, built, and led the Data team at Facebook. The Data team was responsible for driving many of the applications of statistics and machine learning at Facebook, as well as building out the infrastructure to support these tasks for massive data sets. The team produced two open source projects: Hive, a system for offline analysis built above Hadoop, and Cassandra, a structured storage system on a P2P network. Before joining Facebook, Jeff was a quantitative analyst on Wall Street. Jeff earned his Bachelor's Degree in Mathematics from Harvard University and recently served as contributing editor to the book "Beautiful Data", published by O'Reilly in July 2009.

  18. Understanding order flow

    E-Print Network [OSTI]

    Evans, MDD; Lyons, Richard K.

    2006-01-01

    Understanding Order Flow October 2005 Martin D. D. Evans 1Rate Fundamentals and Order Flow, typescript, Georgetown2005), Customer Order Flow and Exchange Rate Movements: Is

  19. Application of convolution theory for solving non-linear flow problems: gas flow systems 

    E-Print Network [OSTI]

    Mireles, Thomas Joseph

    1995-01-01

    The accurate description of fluid flow through porous media using physically representative analytical or numerical models greatly improves an engineer's ability to correctly analyze and predict the flowrate and pressure performance in a reservoir...

  20. Measurement of thermodynamics using gradient flow

    E-Print Network [OSTI]

    Masakiyo Kitazawa; Masayuki Asakawa; Tetsuo Hatsuda; Takumi Iritani; Etsuko Itou; Hiroshi Suzuki

    2014-12-15

    We analyze bulk thermodynamics and correlation functions of the energy-momentum tensor in pure Yang-Mills gauge theory using the energy-momentum tensor defined by the gradient flow and small flow time expansion. Our results on thermodynamic observables are consistent with those obtained by the conventional integral method. The analysis of the correlation function of total energy supports the energy conservation. It is also addressed that these analyses with gradient flow require less statistics compared with the previous methods. All these results suggest that the energy-momentum tensor can be successfully defined and observed on the lattice with moderate numerical costs with the gradient flow.

  1. Method for analyzing microbial communities (Patent) | SciTech...

    Office of Scientific and Technical Information (OSTI)

    In-Document Search Title: Method for analyzing microbial communities The present invention provides a method for quantitatively analyzing microbial genes, species, or strains...

  2. Measurement Guide and Programming PSA and ESA Series Spectrum Analyzers

    E-Print Network [OSTI]

    Anlage, Steven

    Measurement Guide and Programming Examples PSA and ESA Series Spectrum Analyzers This manual information about Agilent Technologies PSA and ESA spectrum analyzers, including firmware upgrades

  3. Method for analyzing microbial communities (Patent) | SciTech...

    Office of Scientific and Technical Information (OSTI)

    Patent: Method for analyzing microbial communities Citation Details In-Document Search Title: Method for analyzing microbial communities You are accessing a document from the...

  4. Analyzing Fuel Saving Opportunities through Driver Feedback Mechanisms...

    Office of Environmental Management (EM)

    Analyzing Fuel Saving Opportunities through Driver Feedback Mechanisms Analyzing Fuel Saving Opportunities through Driver Feedback Mechanisms 2011 DOE Hydrogen and Fuel Cells...

  5. Teaching Direct Marketing and Small Farm Viability: Resources for Instructors, 2nd Edition. Unit 6 - Building Resilience: Small Farm Planning and Operations

    E-Print Network [OSTI]

    2015-01-01

    projections • Develop different scenarios for price andprice sheets to support cash flow revenue projections.price sheets to support cash flow revenue projections.

  6. Compilation of CFD Models of Various Solid Oxide Electrolyzers Analyzed at the Idaho National Laboratory

    SciTech Connect (OSTI)

    Grant Hawkes; James O'Brien

    2012-06-01

    Various three dimensional computational fluid dynamics (CFD) models of solid oxide electrolyzers have been created and analyzed at the Idaho National Laboratory since the inception of the Nuclear Hydrogen Initiative in 2004. Three models presented herein include: a 60 cell planar cross flow with inlet and outlet plenums, 10 cell integrated planar cross flow, and internally manifolded five cell planar cross flow. Mass, momentum, energy, and species conservation and transport are provided via the core features of the commercial CFD code FLUENT. A solid-oxide fuel cell (SOFC) module adds the electrochemical reactions and loss mechanisms and computation of the electric field throughout the cell. The FLUENT SOFC user-defined subroutine was modified for this work to allow for operation in the SOEC mode. Model results provide detailed profiles of temperature, Nernst potential, operating potential, activation over-potential, anode-side gas composition, cathode-side gas composition, current density and hydrogen production over a range of stack operating conditions. Predicted mean outlet hydrogen and steam concentrations vary linearly with current density, as expected. Contour plots of local electrolyte temperature, current density, and Nernst potential indicated the effects of heat transfer, endothermic reaction, Ohmic heating, and change in local gas composition. Results are discussed for using these models in the electrolysis mode. Discussion of thermal neutral voltage, enthalpy of reaction, hydrogen production is reported herein. Contour plots and discussion show areas of likely cell degradation, flow distribution in inlet plenum, and flow distribution across and along the flow channels of the current collectors

  7. Monitoring probe for groundwater flow

    DOE Patents [OSTI]

    Looney, Brian B. (Aiken, SC); Ballard, Sanford (Albuquerque, NM)

    1994-01-01

    A monitoring probe for detecting groundwater migration. The monitor features a cylinder made of a permeable membrane carrying an array of electrical conductivity sensors on its outer surface. The cylinder is filled with a fluid that has a conductivity different than the groundwater. The probe is placed in the ground at an area of interest to be monitored. The fluid, typically saltwater, diffuses through the permeable membrane into the groundwater. The flow of groundwater passing around the permeable membrane walls of the cylinder carries the conductive fluid in the same general direction and distorts the conductivity field measured by the sensors. The degree of distortion from top to bottom and around the probe is precisely related to the vertical and horizontal flow rates, respectively. The electrical conductivities measured by the sensors about the outer surface of the probe are analyzed to determine the rate and direction of the groundwater flow.

  8. Monitoring probe for groundwater flow

    DOE Patents [OSTI]

    Looney, B.B.; Ballard, S.

    1994-08-23

    A monitoring probe for detecting groundwater migration is disclosed. The monitor features a cylinder made of a permeable membrane carrying an array of electrical conductivity sensors on its outer surface. The cylinder is filled with a fluid that has a conductivity different than the groundwater. The probe is placed in the ground at an area of interest to be monitored. The fluid, typically saltwater, diffuses through the permeable membrane into the groundwater. The flow of groundwater passing around the permeable membrane walls of the cylinder carries the conductive fluid in the same general direction and distorts the conductivity field measured by the sensors. The degree of distortion from top to bottom and around the probe is precisely related to the vertical and horizontal flow rates, respectively. The electrical conductivities measured by the sensors about the outer surface of the probe are analyzed to determine the rate and direction of the groundwater flow. 4 figs.

  9. DECORRELATION TIMES OF PHOTOSPHERIC FIELDS AND FLOWS

    SciTech Connect (OSTI)

    Welsch, B. T.; Kusano, K.; Yamamoto, T. T.; Muglach, K.

    2012-03-10

    We use autocorrelation to investigate evolution in flow fields inferred by applying Fourier local correlation tracking (FLCT) to a sequence of high-resolution (0.''3), high-cadence ({approx_equal} 2 minute) line-of-sight magnetograms of NOAA active region (AR) 10930 recorded by the narrowband filter imager of the Solar Optical Telescope aboard the Hinode satellite over 2006 December 12 and 13. To baseline the timescales of flow evolution, we also autocorrelated the magnetograms, at several spatial binnings, to characterize the lifetimes of active region magnetic structures versus spatial scale. Autocorrelation of flow maps can be used to optimize tracking parameters, to understand tracking algorithms' susceptibility to noise, and to estimate flow lifetimes. Tracking parameters varied include: time interval {Delta}t between magnetogram pairs tracked, spatial binning applied to the magnetograms, and windowing parameter {sigma} used in FLCT. Flow structures vary over a range of spatial and temporal scales (including unresolved scales), so tracked flows represent a local average of the flow over a particular range of space and time. We define flow lifetime to be the flow decorrelation time, {tau}. For {Delta}t > {tau}, tracking results represent the average velocity over one or more flow lifetimes. We analyze lifetimes of flow components, divergences, and curls as functions of magnetic field strength and spatial scale. We find a significant trend of increasing lifetimes of flow components, divergences, and curls with field strength, consistent with Lorentz forces partially governing flows in the active photosphere, as well as strong trends of increasing flow lifetime and decreasing magnitudes with increases in both spatial scale and {Delta}t.

  10. Systems and methods for analyzing liquids under vacuum

    DOE Patents [OSTI]

    Yu, Xiao-Ying; Yang, Li; Cowin, James P.; Iedema, Martin J.; Zhu, Zihua

    2013-10-15

    Systems and methods for supporting a liquid against a vacuum pressure in a chamber can enable analysis of the liquid surface using vacuum-based chemical analysis instruments. No electrical or fluid connections are required to pass through the chamber walls. The systems can include a reservoir, a pump, and a liquid flow path. The reservoir contains a liquid-phase sample. The pump drives flow of the sample from the reservoir, through the liquid flow path, and back to the reservoir. The flow of the sample is not substantially driven by a differential between pressures inside and outside of the liquid flow path. An aperture in the liquid flow path exposes a stable portion of the liquid-phase sample to the vacuum pressure within the chamber. The radius, or size, of the aperture is less than or equal to a critical value required to support a meniscus of the liquid-phase sample by surface tension.

  11. A numerical study on the effects of 2d structured sinusoidal elements on fluid flow and heat transfer at microscale

    E-Print Network [OSTI]

    Kandlikar, Satish

    , the effect of structured roughness elements on incompress- ible laminar fluid flow is analyzedA numerical study on the effects of 2d structured sinusoidal elements on fluid flow and heat flow Structured roughness elements Laminar flow a b s t r a c t Better understanding of laminar flow

  12. Facebook Application for Publicizing, Searching and Analyzing Data . . 40002

    E-Print Network [OSTI]

    Runapongsa, Kanda

    Facebook Application for Publicizing, Searching and Analyzing Data , , , , . . 40002 E-mail: krunapon@kku.ac.th Abstract This article is to present Facebook application that addresses the needs of Facebook users for their convenience in publicizing, searching, analyzing data

  13. Techniques and Tools for Analyzing and Understanding Android Applications

    E-Print Network [OSTI]

    California at Davis, University of

    Techniques and Tools for Analyzing and Understanding Android Applications By LIANG XU B.S. (Wuhan 2013 i #12;Techniques and Tools for Analyzing and Understanding Android Applications c Liang Xu, 2013 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2.2 Android Manifest

  14. Yolanda Gil Marc Linster Dimensions to Analyze Applications

    E-Print Network [OSTI]

    Southern California, University of

    1 1 Abstract Yolanda Gil Marc Linster Dimensions to Analyze Applications gil@isi.edu linster@guess.enet

  15. LWA Equipment RF Emissions: Spectrum Analyzers and Ylva Pihlstrm, UNM

    E-Print Network [OSTI]

    Ellingson, Steven W.

    1 LWA Equipment RF Emissions: Spectrum Analyzers and Laptops Ylva Pihlström, UNM 8/27/06 Summary I be used at the LWDA site during standard VLA operations. Two brands of spectrum analyzers and laptop are therefore considered typical of spectrum analyzers and laptops. The results of the measurements suggest

  16. User's/Programmer's Reference Core Spectrum Analyzer Functions

    E-Print Network [OSTI]

    Anlage, Steven

    User's/Programmer's Reference Volume 1 Core Spectrum Analyzer Functions ESA Series Spectrum. For the latest information about Agilent Technologies ESA Spectrum Analyzers, including firmware upgrades and used under license. NOTE If the ESA Spectrum Analyzer experiences a rapid "power down / power up

  17. Propeller Flow Meter 

    E-Print Network [OSTI]

    Enciso, Juan; Santistevan, Dean; Hla, Aung K.

    2007-10-01

    Propeller flow meters are commonly used to measure water flow rate. They can also be used to estimate irrigation water use. This publication explains how to select, install, read and maintain propeller flow meters....

  18. Bacteria in shear flow

    E-Print Network [OSTI]

    Marcos, Ph.D. Massachusetts Institute of Technology

    2011-01-01

    Bacteria are ubiquitous and play a critical role in many contexts. Their environment is nearly always dynamic due to the prevalence of fluid flow: creeping flow in soil, highly sheared flow in bodily conduits, and turbulent ...

  19. Dispersed flow film boiling

    E-Print Network [OSTI]

    Yoder, Graydon L.

    1980-01-01

    Dispersed flow consists of small liquid droplets entrained in a flowing vapor. This flow regime can occur in cryogenic equipment, in steam generators, and during nuclear reactor loss of coolant accidents. A theoretical ...

  20. FLOW-THROUGH POROUS ELECTRODES

    E-Print Network [OSTI]

    Trainham, III, James Arthur

    2011-01-01

    configurations for flow redox battery applications: (i) theporous electrodes A flow-redox battery using flow-by poroustrue in battery applications, Flow..through porous

  1. Dynamics of flexible fibers in shear flow

    E-Print Network [OSTI]

    Agnieszka M. Slowicka; Eligiusz Wajnryb; Maria L. Ekiel-Jezewska

    2015-04-03

    Dynamics of flexible non-Brownian fibers in shear flow at low-Reynolds-number are analyzed numerically for a wide range of the ratios A of the fiber bending force to the viscous drag force. Initially, the fibers are aligned with the flow, and later they move in the plane perpendicular to the flow vorticity. A surprisingly rich spectrum of different modes is observed when the value of A is systematically changed, with sharp transitions between coiled and straightening out modes, period-doubling bifurcations from periodic to migrating solutions, irregular dynamics and chaos.

  2. Multiphase flow calculation software

    DOE Patents [OSTI]

    Fincke, James R. (Idaho Falls, ID)

    2003-04-15

    Multiphase flow calculation software and computer-readable media carrying computer executable instructions for calculating liquid and gas phase mass flow rates of high void fraction multiphase flows. The multiphase flow calculation software employs various given, or experimentally determined, parameters in conjunction with a plurality of pressure differentials of a multiphase flow, preferably supplied by a differential pressure flowmeter or the like, to determine liquid and gas phase mass flow rates of the high void fraction multiphase flows. Embodiments of the multiphase flow calculation software are suitable for use in a variety of applications, including real-time management and control of an object system.

  3. Flow Distances on Open Flow Networks

    E-Print Network [OSTI]

    Guo, Liangzhu; Shi, Peiteng; Wang, Jun; Huang, Xiaohan; Zhang, Jiang

    2015-01-01

    Open flow network is a weighted directed graph with a source and a sink, depicting flux distributions on networks in the steady state of an open flow system. Energetic food webs, economic input-output networks, and international trade networks, are open flow network models of energy flows between species, money or value flows between industrial sectors, and goods flows between countries, respectively. Flow distances (first-passage or total) between any given two nodes $i$ and $j$ are defined as the average number of transition steps of a random walker along the network from $i$ to $j$ under some conditions. They apparently deviate from the conventional random walk distance on a closed directed graph because they consider the openness of the flow network. Flow distances are explicitly expressed by underlying Markov matrix of a flow system in this paper. With this novel theoretical conception, we can visualize open flow networks, calculating centrality of each node, and clustering nodes into groups. We apply fl...

  4. Numerical analysis of vapor flow in a micro heat pipe 

    E-Print Network [OSTI]

    Liu, Xiaoqin

    1996-01-01

    The vapor flow in a flat plate micro heat pipe with both uniform and linear heat flux boundary conditions has been numerically analyzed. For both types of boundary conditions, the Navier-Stokes equations with steady incompressible two...

  5. Mechanism of a proton pump analyzed with computer simulations

    E-Print Network [OSTI]

    Bondar, Ana-Nicoleta; Smith, Jeremy C.; Elstner, Marcus

    2010-01-01

    ARTICLE Mechanism of a proton pump analyzed with computerhow bacteriorhodopsin pumps protons. We emphasize the1 Introduction Proton pumps are remarkable proteins that

  6. A Big Data Approach to Analyzing Market Volatility

    E-Print Network [OSTI]

    Wu, Kesheng

    2014-01-01

    A Big Data Approach to Analyzing Market Volatility KeshengUniversity of California. A Big Data Approach to Analyzingefforts to handle the big data problem. However, the

  7. Vehicle Technologies Office Merit Review 2015: Analyzing Real...

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

    Office Annual Merit Review and Peer Evaluation Meeting about analyzing real-world light duty vehicle efficiency benefits. vss155gonder2015o.pdf More Documents &...

  8. Portable wastewater flow meter

    DOE Patents [OSTI]

    Hunter, Robert M. (320 S. Wilson Ave., Bozeman, MT 59715)

    1999-02-02

    A portable wastewater flow meter particularly adapted for temporary use at a single location in measuring the rate of liquid flow in a circular entrance conduit of a sewer manhole both under free flow and submerged, open channel conditions and under fill pipe, surcharged conditions, comprising an apparatus having a cylindrical external surface and an inner surface that constricts the flow through the apparatus in such a manner that a relationship exists between (1) the difference between the static pressure head of liquid flowing through the entrance of the apparatus and the static pressure head of liquid flowing through the constriction, and (2) the rate of liquid flow through the apparatus.

  9. Portable wastewater flow meter

    DOE Patents [OSTI]

    Hunter, Robert M. (320 S. Wilson Ave., Bozeman, MT 59715)

    1990-01-01

    A portable wastewater flow meter particularly adapted for temporary use at a single location in measuring the rate of liquid flow in a circular entrance conduit of a sewer manhole both under free flow and submerged, open channel conditions and under full pipe, surcharged conditions, comprising an apparatus having a cylindrical external surface and an inner surface that constricts the flow through the apparatus in such a manner that a relationship exists between (1) the difference between the static pressure head of liquid flowing through the entrance of the apparatus and the static pressure head of liquid flowing through the constriction, and (2) the rate of liquid flow through the apparatus.

  10. Inhomogeneity of fluid flow in Stirling engine regenerators

    SciTech Connect (OSTI)

    Jones, J.D. )

    1989-10-01

    The literature relating to inhomogeneity of flow regenerators is briefly reviewed. It is noted that, in contrast to other applications of regenerators, relatively little attention has been paid to the consequences of flow inhomogeneity for thermal regeneration in Stirling cycle machines. The construction of regenerator capsules for a large stationary Stirling engine is described. A test rig is developed to measure the gas velocity profile across the face of the packed regenerator capsules under steady flow conditions. Measured flow profiles for a number of different matrix materials and construction techniques are presented, and it is noted that stacked-mesh regenerator matrices tend to display marked inhomogeneities of flow. The consequences of flow inhomogeneity for flow friction and regenerator effectiveness are analyzed theoretically, and approximate formulae deduced. One method for reducing flow inhomogeneity in stacked-screen matrice

  11. Flow Regime Identification of Co-Current Downward Two-Phase Flow With Neural Network Approach

    SciTech Connect (OSTI)

    Hiroshi Goda; Seungjin Kim; Ye Mi; Finch, Joshua P.; Mamoru Ishii [Purdue University, West Lafayette, IN 47907 (United States); Jennifer Uhle [U.S. Nuclear Regulatory Commission, Washington, DC 20555-0001 (United States)

    2002-07-01

    Flow regime identification for an adiabatic vertical co-current downward air-water two-phase flow in the 25.4 mm ID and the 50.8 mm ID round tubes was performed by employing an impedance void meter coupled with the neural network classification approach. This approach minimizes the subjective judgment in determining the flow regimes. The signals obtained by an impedance void meter were applied to train the self-organizing neural network to categorize these impedance signals into a certain number of groups. The characteristic parameters set into the neural network classification included the mean, standard deviation and skewness of impedance signals in the present experiment. The classification categories adopted in the present investigation were four widely accepted flow regimes, viz. bubbly, slug, churn-turbulent, and annular flows. These four flow regimes were recognized based upon the conventional flow visualization approach by a high-speed motion analyzer. The resulting flow regime maps classified by the neural network were compared with the results obtained through the flow visualization method, and consequently the efficiency of the neural network classification for flow regime identification was demonstrated. (authors)

  12. Energy flow observables in hadronic collisions

    E-Print Network [OSTI]

    F. Hautmann

    2012-05-24

    We present recent QCD calculations of energy flow distributions associated with the production of jets at wide rapidity separations in high-energy hadron collisions, and discuss the role of these observables to analyze contributions from parton showering and from multiple parton collisions.

  13. Plant analyzer for high-speed interactive simulation of BWR plant transients

    SciTech Connect (OSTI)

    Cheng, H.S.; Lekach, S.V.; Mallen, A.N.; Wulff, W.; Cerbone, R.J.

    1984-01-01

    A combination of advanced modeling techniques and modern, special-purpose peripheral minicomputer technology was utilized to develop a plant analyzer which affords realistic predictions of plant transients and severe off-normal events in LWR power plants through on-line simulations at speeds up to 10 times faster than actual process speeds. The mathematical models account for nonequilibrium, nonhomogeneous two-phase flow effects in the coolant, for acoustical effects in the steam line and for the dynamics of the entire balance of the plant. Reactor core models include point kinetics with reactivity feedback due to void fraction, fuel temperature, coolant temperature, and boron concentration as well as a conduction model for predicting fuel and clad temperatures. Control systems and trip logic for plant protection systems are also simulated. The AD10 of Applied Dynamics International, a special-purpose peripheral processor, is used as the principal hardware of the plant analyzer.

  14. Applying High Performance Computing to Analyzing by Probabilistic Model Checking

    E-Print Network [OSTI]

    Schneider, Carsten

    Applying High Performance Computing to Analyzing by Probabilistic Model Checking Mobile Cellular on the use of high performance computing in order to analyze with the proba- bilistic model checker PRISM. The Figure Generation Script 22 2 #12;1. Introduction We report in this paper on the use of high performance

  15. Development of a PLC code analyzer November 2014

    E-Print Network [OSTI]

    Steffen, Martin

    Development of a PLC code analyzer November 2014 candidate Altin Qeriqi supervisors Martin Steffen The task is to design and implement a translation from a PLC language to an analyzer back-end such as Nu scrutiny to ensure its functioning. Problem setting One approach to verify PLC programs is model checking

  16. PScout: Analyzing the Android Permission Specification Kathy Wain Yee Au

    E-Print Network [OSTI]

    Lie, David

    PScout: Analyzing the Android Permission Specification by Kathy Wain Yee Au A thesis submitted PScout: Analyzing the Android Permission Specification Kathy Wain Yee Au Master of Applied Science of the Android permission system in an attempt to begin answering some of the questions that have arisen about

  17. The Interaction Analyzer: A Tool for Debugging Ubiquitous Computing Applications

    E-Print Network [OSTI]

    Kleinrock, Leonard

    The Interaction Analyzer: A Tool for Debugging Ubiquitous Computing Applications Nam Nguyen@cs.ucla.edu, lk@cs.ucla.edu, reiher@cs.ucla.edu Abstract--Ubiquitous computing applications are frequently long, a debugging tool for ubiquitous computing applications that addresses this problem. The Interaction Analyzer

  18. Analyzing video compression for transporting over wireless fading channels 

    E-Print Network [OSTI]

    Kannan, Karthik

    2006-10-30

    to analyze the effect of a wireless channel on a video transmission. The aim of this research is to analyze the video transmission over Rayleigh fading channels for various bit error rates (BER), signal to noise ratios (Eb/N0) and Doppler rates...

  19. Analyzing and Simulating Fracture Patterns of Theran Wall Paintings

    E-Print Network [OSTI]

    Singh, Jaswinder Pal

    10 Analyzing and Simulating Fracture Patterns of Theran Wall Paintings HIJUNG SHIN, Princeton and Akrotiri Excavation TIM WEYRICH, University College London In this article, we analyze the fracture that suggests a hierarchical fracture pattern where fragments break into two pieces recursively along cracks

  20. LINEAR TRANSIENT FLOW SOLUTION FOR PRIMARY OIL RECOVERY

    E-Print Network [OSTI]

    Patzek, Tadeusz W.

    in a low-permeability, compressible, layered reservoir filled with oil, water and gas. The sample for pressure support and incremental oil recovery. We analyze the pressure response and fluid flow ratesLINEAR TRANSIENT FLOW SOLUTION FOR PRIMARY OIL RECOVERY WITH INFILL AND CONVERSION TO WATER

  1. An on-line acoustic fluorocarbon coolant mixture analyzer for the ATLAS silicon tracker

    SciTech Connect (OSTI)

    Bates, R.; Battistin, M.; Berry, S.; Bitadze, A.; Bonneau, P.; Bousson, N.; Boyd, G.; Botelho-Direito, J.; DiGirolamo, B.; Doubek, M.; Egorov, K.; Godlewski, J.; Hallewell, G.; Katunin, S.; Mathieu, M.; McMahon, S.; Nagai, K.; Perez-Rodriguez, E.; Rozanov, A.; Vacek, V.; Vitek, M.

    2011-07-01

    The ATLAS silicon tracker community foresees an upgrade from the present octafluoro-propane (C{sub 3}F{sub 8}) evaporative cooling fluid - to a composite fluid with a probable 10-20% admixture of hexafluoro-ethane (C{sub 2}F{sub 6}). Such a fluid will allow a lower evaporation temperature and will afford the tracker silicon substrates a better safety margin against leakage current-induced thermal runaway caused by cumulative radiation damage as the luminosity profile at the CERN Large Hadron Collider increases. Central to the use of this new fluid is a new custom-developed speed-of-sound instrument for continuous real-time measurement of the C{sub 3}F{sub 8}/C{sub 2}F{sub 6} mixture ratio and flow. An acoustic vapour mixture analyzer/flow meter with new custom electronics allowing ultrasonic frequency transmission through gas mixtures has been developed for this application. Synchronous with the emission of an ultrasound 'chirp' from an acoustic transmitter, a fast readout clock (40 MHz) is started. The clock is stopped on receipt of an above threshold sound pulse at the receiver. Sound is alternately transmitted parallel and anti-parallel with the vapour flow for volume flow measurement from transducers that can serve as acoustic transmitters or receivers. In the development version, continuous real-time measurement of C{sub 3}F{sub 8}/C{sub 2}F{sub 6} flow and calculation of the mixture ratio is performed within a graphical user interface developed in PVSS-II, the Supervisory, Control and Data Acquisition standard chosen for LHC and its experiments at CERN. The described instrument has numerous potential applications - including refrigerant leak detection, the analysis of hydrocarbons, vapour mixtures for semiconductor manufacture and anesthetic gas mixtures. (authors)

  2. QER- Comment of David Cash

    Broader source: Energy.gov [DOE]

    Dear Katy, Thank you for your engagement in this issue – so crucial right now in terms of protecting our environment for the future and growing our economy. I would like to take this opportunity to correct what appears to be a misunderstanding in your email below about what I presented.

  3. Note: Portable rare-earth element analyzer using pyroelectric crystal

    SciTech Connect (OSTI)

    Imashuku, Susumu, E-mail: imashuku.susumu.2m@kyoto-u.ac.jp; Fuyuno, Naoto; Hanasaki, Kohei; Kawai, Jun [Department of Materials Science and Engineering, Kyoto University, Sakyo, Kyoto 606-8501 (Japan)] [Department of Materials Science and Engineering, Kyoto University, Sakyo, Kyoto 606-8501 (Japan)

    2013-12-15

    We report a portable rare-earth element analyzer with a palm-top size chamber including the electron source of a pyroelectric crystal and the sample stage utilizing cathodoluminescence (CL) phenomenon. The portable rare-earth element analyzer utilizing CL phenomenon is the smallest reported so far. The portable rare-earth element analyzer detected the rare-earth elements Dy, Tb, Er, and Sm of ppm order in zircon, which were not detected by scanning electron microscopy-energy dispersive X-ray spectroscopy analysis. We also performed an elemental mapping of rare-earth elements by capturing a CL image using CCD camera.

  4. Flow Field Flow Fractionation Method Development for Applied Bioanalysis

    E-Print Network [OSTI]

    Schachermeyer, Samantha Lynn

    2013-01-01

    E. ; Caldwell, K. , Field-Flow Fractionation Handbook. JohnJ. P. , Sedimentation field-flow-fractionation: emergence ofby sedimentation field-flow fractionation. Am. Lab. (

  5. Designing, testing, and analyzing coupled, flux transformer heat 

    E-Print Network [OSTI]

    Renzi, Kimberly Irene

    1998-01-01

    The proposed research involves designing, testing, and ics. analyzing a coupled, flux transformer heat pipe system following the patent of Oktay and Peterson (1997). Experiments were conducted utilizing four copper heat ...

  6. Analyzing aquifer driven reservoirs using a computer-oriented approach 

    E-Print Network [OSTI]

    Flumerfelt, Raymond William

    1996-01-01

    A new computer-oriented approach for analyzing aquifer driven reservoirs incorporates both geological and historical pressure data to determine original hydrocarbons-in-place and to forecast production. This new approach does not rely entirely...

  7. Analyzing the safety impact of containment inerting at Vermont Yankee

    E-Print Network [OSTI]

    Heising, Carolyn D. (Carolyn DeLane), 1952-

    1980-01-01

    Post-accident hydrogen generation in BWR containments is analyzed as a function of engineered hydrogen control system, assumed either nitrogen inerting or air dilution. Fault tree analysis was applied to assess the failure ...

  8. Global Invariants for Analyzing Multithreaded Applications Helmut Seidl #

    E-Print Network [OSTI]

    Seidl, Helmut

    ­ and context­sensitive interprocedural data­race analyzer of multi­threaded C. 1 Introduction The DAEDALUS project is a joint European technology transfer project with industrial and academic partners which aims

  9. Global Invariants for Analyzing Multi-threaded Applications Helmut Seidl

    E-Print Network [OSTI]

    Müller-Olm, Markus

    -sensitive interprocedural data-race analyzer of multi-threaded C. 1 Introduction The DAEDALUS project is a joint European technology transfer project with industrial and academic partners which aims at applying techniques from

  10. ECONOMIC DEVELOPMENT PROSPECTS OF FOREST-DEPENDENT COMMUNITIES: ANALYZING

    E-Print Network [OSTI]

    ECONOMIC DEVELOPMENT PROSPECTS OF FOREST-DEPENDENT COMMUNITIES: ANALYZING TRADE-OFFS USING of wood fiber for community stability, and financial returns for economic diversification. We address weighting of objectives. Economic development outcomes obtained using compromise and fuzzy programming

  11. Analyzing the spectrum of general, non-hermitian Dirac operators

    E-Print Network [OSTI]

    Christof Gattringer; Ivan Hip

    1998-09-03

    We discuss the computational problems when analyzing general, non-hermitian matrices and in particular the un-modified Wilson lattice Dirac operator. We report on our experiences with the Implicitly Restarted Arnoldi Method. The eigenstates of the Wilson-Dirac operator which have real eigenvalues and correspond to zero modes in the continuum are analyzed by correlating the size of the eigenvalues with the chirality of the eigenstates.

  12. Analyzing aquifers associated with gas reservoirs using aquifer influence functions 

    E-Print Network [OSTI]

    Targac, Gary Wayne

    1988-01-01

    ANALYZING AQUIFERS ASSOCIATED WITH GAS RESERVOIRS USING AQUIFER INFLUENCE FUNCTIONS A Thesis by GARY WAYNE TARGAC Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER... OF SCIENCE V z May 1988 z V z z I- Major Subject: Petroleum Engineering ANALYZING AQUIFERS ASSOCIATED WITH GAS RESERVOIRS USING AQUIFER INFLUENCE FUNCTIONS A Thesis by GARY WAYNE TARGAC Approved as to style and content by: (Chair of Committ R...

  13. Ultrasonic flow metering system

    DOE Patents [OSTI]

    Gomm, Tyler J. (Meridian, ID); Kraft, Nancy C. (Idaho Falls, ID); Mauseth, Jason A. (Pocatello, ID); Phelps, Larry D. (Pocatello, ID); Taylor, Steven C. (Idaho Falls, ID)

    2002-01-01

    A system for determining the density, flow velocity, and mass flow of a fluid comprising at least one sing-around circuit that determines the velocity of a signal in the fluid and that is correlatable to a database for the fluid. A system for determining flow velocity uses two of the inventive circuits with directional transmitters and receivers, one of which is set at an angle to the direction of flow that is different from the others.

  14. Elbow mass flow meter

    DOE Patents [OSTI]

    McFarland, Andrew R. (College Station, TX); Rodgers, John C. (Santa Fe, NM); Ortiz, Carlos A. (Bryan, TX); Nelson, David C. (Santa Fe, NM)

    1994-01-01

    Elbow mass flow meter. The present invention includes a combination of an elbow pressure drop generator and a shunt-type mass flow sensor for providing an output which gives the mass flow rate of a gas that is nearly independent of the density of the gas. For air, the output is also approximately independent of humidity.

  15. FLOW-THROUGH POROUS ELECTRODES

    E-Print Network [OSTI]

    Trainham, III, James Arthur

    2011-01-01

    Wilhelm. HBoundary conditions of a flow reactor. 1i Chemicala Packed-Bed Electrochemical Flow Reactor." Journal ofRichard, and Brian Gracon. "Flow-Through Porous Electrodes."

  16. Redox Flow Batteries, a Review

    E-Print Network [OSTI]

    Weber, Adam Z.

    2013-01-01

    Ltd." . Http://Plurionsystems.Com/Tech_Flow_Advantages.Html.plurionsystems.com/tech_flow_advantages.html [71] P. Leung,High Energy Density Redox Flow Device," ed: WO Patent

  17. Three-dimensional reconstruction of bubble distribution in two-phase bubbly flows with the dynamic programming method 

    E-Print Network [OSTI]

    Furukawa, Toru

    2002-01-01

    A three-dimensional bubble reconstruction method is proposed in this thesis to analyze two-phase bubbly flows. Gas/liquid two-phase flows have important roles in the nuclear and chemical industries and other engineering fields...

  18. Trace Partitioning in Abstract Interpretation Based Static Analyzers

    E-Print Network [OSTI]

    Mauborgne, Laurent

    designing a tractable static analysis, one usually needs to approximate the trace semantics. This paper information about the execution order and the concrete flow paths is lost. However, this reachable states or -1 at the end of this piece of code; in par* *ticular sgn cannot be equal to 0. As a consequence

  19. Trace Partitioning in Abstract Interpretation Based Static Analyzers

    E-Print Network [OSTI]

    Mauborgne, Laurent

    .Mauborgne@ens.fr and Xavier.Rival@ens.fr Abstract. When designing a tractable static analysis, one usually needs information about the execution order and the concrete flow paths is lost. However, this reachable states = -1; } else{ sgn = 1; } Clearly sgn is either equal to 1 or -1 at the end of this piece of code

  20. Trace Partitioning in Abstract Interpretation Based Static Analyzers

    E-Print Network [OSTI]

    Mauborgne, Laurent

    .Mauborgne@ens.fr and Xavier.Rival@ens.fr Abstract. When designing a tractable static analysis, one usually needs information about the execution order and the concrete flow paths is lost. However, this reachable states = -1; } else{ sgn = 1; } Clearly sgn is equal to either 1 or -1 at the end of this piece of code

  1. Lateral flow strip assay

    DOE Patents [OSTI]

    Miles, Robin R. (Danville, CA); Benett, William J. (Livermore, CA); Coleman, Matthew A. (Oakland, CA); Pearson, Francesca S. (Livermore, CA); Nasarabadi, Shanavaz L. (Livermore, CA)

    2011-03-08

    A lateral flow strip assay apparatus comprising a housing; a lateral flow strip in the housing, the lateral flow strip having a receiving portion; a sample collection unit; and a reagent reservoir. Saliva and/or buccal cells are collected from an individual using the sample collection unit. The sample collection unit is immersed in the reagent reservoir. The tip of the lateral flow strip is immersed in the reservoir and the reagent/sample mixture wicks up into the lateral flow strip to perform the assay.

  2. Controlling chaos in a fluid flow past a movable cylinder Juan C. Vallejo a

    E-Print Network [OSTI]

    Rey Juan Carlos, Universidad

    mechanisms are not yet well known. This paper analyzes the fluid flow past a cylinder in a laminar regime of an in- compressible, viscid, time-dependent fluid flow past a cylinder in the laminar vortex sheddingControlling chaos in a fluid flow past a movable cylinder Juan C. Vallejo a , Inees P. Mari

  3. A study on a lobed jet mixing flow by using stereoscopic particle image velocimetry technique

    E-Print Network [OSTI]

    Hu, Hui

    A study on a lobed jet mixing flow by using stereoscopic particle image velocimetry technique Hui in the present study to conduct three-dimensional measurements of air jet flows exhausted from a lobed nozzle distributions were used to analyze the characteristics of the mixing process in the lobed jet flow compared

  4. Low flow fume hood

    DOE Patents [OSTI]

    Bell, Geoffrey C. (Pleasant Hill, CA); Feustel, Helmut E. (Albany, CA); Dickerhoff, Darryl J. (Berkeley, CA)

    2002-01-01

    A fume hood is provided having an adequate level of safety while reducing the amount of air exhausted from the hood. A displacement flow fume hood works on the principal of a displacement flow which displaces the volume currently present in the hood using a push-pull system. The displacement flow includes a plurality of air supplies which provide fresh air, preferably having laminar flow, to the fume hood. The displacement flow fume hood also includes an air exhaust which pulls air from the work chamber in a minimally turbulent manner. As the displacement flow produces a substantially consistent and minimally turbulent flow in the hood, inconsistent flow patterns associated with contaminant escape from the hood are minimized. The displacement flow fume hood largely reduces the need to exhaust large amounts of air from the hood. It has been shown that exhaust air flow reductions of up to 70% are possible without a decrease in the hood's containment performance. The fume hood also includes a number of structural adaptations which facilitate consistent and minimally turbulent flow within a fume hood.

  5. Information flow, non-Markovianity, and geometric phases

    SciTech Connect (OSTI)

    Wu, S. L.; Wang, L. C.; Yi, X. X. [School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian 116024 (China); Huang, X. L. [School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian 116024 (China); School of Physics and Electronic Technology, Liaoning Normal University, Dalian, 116029 (China)

    2010-11-15

    Geometric phases and information flows of a two-level system coupled to its environment are calculated and analyzed. The information flow is defined as a cumulant of changes in trace distance between two quantum states, which is similar to the measure for non-Markovianity given by Breuer. We obtain an analytic relation between the geometric phase and the information flow for pure initial states, and a numerical result for mixed initial states. The geometric phase behaves differently depending on whether there are information flows back to the two-level system from its environment.

  6. Using the bootstrap to analyze variable stars data 

    E-Print Network [OSTI]

    Dunlap, Mickey Paul

    2005-02-17

    -1 USING THE BOOTSTRAP TO ANALYZE VARIABLE STARS DATA A Dissertation by MICKEY P. DUNLAP Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfifllment of the requirements for the degree of DOCTOR OF PHILOSOPHY December 2004... Major Subject: Statistics USING THE BOOTSTRAP TO ANALYZE VARIABLE STARS DATA A Dissertation by MICKEY P. DUNLAP Submitted to Texas A&M University in partial fulfifllment of the requirements for the degree of DOCTOR OF PHILOSOPHY Approved as to style...

  7. PCA-multiport, a universal computer-based multichannel analyzer

    SciTech Connect (OSTI)

    Seymour, R.; Bedwell, M.; Stockton, S.; Beal, T.; Ahsan, Z.

    1991-11-01

    Nearly a decade has passed since Tennelec/Nucleus introduced the first personal-computer-based multichannel analyzer (MCA). These new MCA architectures, including plug-in cards, nuclear instrumentation module (NIM), and non-NIM versions, have revolutionized spectroscopy measurements and virtually replaced conventional one-box MCAs. The Tennelec personal computer analyzer (PCA)-Multiport is a third-generation system capable of interfacing with virtually any computer. It is designed to be used for most energy and timing measurements commonly encountered in nuclear spectroscopy.

  8. System for concentrating and analyzing particles suspended in a fluid

    DOE Patents [OSTI]

    Fiechtner, Gregory J. (Bethesda, MD); Cummings, Eric B. (Livermore, CA); Singh, Anup K. (Danville, CA)

    2011-04-26

    Disclosed is a device for separating and concentrating particles suspended in a fluid stream by using dielectrophoresis (DEP) to trap and/or deflect those particles as they migrate through a fluid channel. The method uses fluid channels designed to constrain a liquid flowing through it to uniform electrokinetic flow velocities. This behavior is achieved by connecting deep and shallow sections of channels, with the channel depth varying abruptly along an interface. By careful design of abrupt changes in specific permeability at the interface, an abrupt and spatially uniform change in electrokinetic force can be selected. Because these abrupt interfaces also cause a sharp gradient in applied electric fields, a DEP force also can be established along the interface. Depending on the complex conductivity of the suspended particles and the immersion liquid, the DEP force can controllably complement or oppose the local electrokinetic force transporting the fluid through the channel allowing for manipulation of particles suspended in the transporting liquid.

  9. EModel: A New Tool for Analyzing Building Energy Use Data 

    E-Print Network [OSTI]

    Haberl, J. S.; Claridge, D. E.; Kissock, J. K.; Reddy, T. A.

    1993-01-01

    that today's smart machines have a double capacity for information; not only do they require information (in the form of coded instructions and input data) to perform their designated task, but they also produce information in the process. The production... control algorithms is the availability of measured energy use, flow and environmental data. It is now common for a building's energy management and control system (EMCS) to regularly process and record hundreds of channels of measured data at time...

  10. Pipe Flow System Holly Guest

    E-Print Network [OSTI]

    Clement, Prabhakar

    Pipe Flow System Design Holly Guest #12;Problem · An engineer is asked to compute the flow rate · Flow type: Turbulent or Laminar flow · Flow rate · Frictional head loss · Optimal diameters if a pump · = - ( . + . ) · f = friction factor · = relative roughness = · = Reynolds Number = · Laminar flow: 2000

  11. Analyzing Software Architecture Descriptions to Generate Systemlevel Tests 1

    E-Print Network [OSTI]

    Offutt, Jeff

    externally­defined test cases. 2 Issues in Software Architecture­based Testing Although there are differencesAnalyzing Software Architecture Descriptions to Generate System­level Tests 1 Aynur Abdurazik y (ADLs) represent a significant opportunity for dealing with the issue of scale with respect to testing

  12. Use of Artificial Neural Networks Process Analyzers: A Case Study

    E-Print Network [OSTI]

    Ghouti, Lahouari

    for this case study was obtained from SHARQ petrochemical company, Saudi Arabia. Four process variablesUse of Artificial Neural Networks Process Analyzers: A Case Study Al-Duwaish1 , H., Ghouti2 , L to predict O2 contents in a boiler at SHARQ petrochemical company in Saudi Arabia. The training data has been

  13. A spectral graph based approach to analyze hyperspectral data

    E-Print Network [OSTI]

    Bertozzi, Andrea L.

    A spectral graph based approach to analyze hyperspectral data Blake Hunter Department of Mathematics, UCLA 520 Portola Plaza Los Angeles, CA 90095 Email: blakehunter@math.ucla.edu Yifei Lou Department of Mathematics, UCLA 520 Portola Plaza Los Angeles, CA 90095 Email: bertozzi

  14. Ion Sources and Mass Analyzers in Protein Characterization

    E-Print Network [OSTI]

    Richardson, David

    . Get molecules into the gas phase & ionize them. 2. Give the ions a defined energy or velocity. 3 of analyzers may not always be adequate to distinguish individual peaks. In this case, average masses are used/z are lost. The mass range is scanned as the voltages are swept from min to max, but at constant DC/RF ratio

  15. Analyzing Parallelism and Domain Similarities in the MAREC Patent Corpus

    E-Print Network [OSTI]

    Riezler, Stefan

    Analyzing Parallelism and Domain Similarities in the MAREC Patent Corpus Katharina W}@cl.uni-heidelberg.de Abstract. Statistical machine translation of patents requires large a- mounts of sentence-parallel data. Translations of patent text often exist for parts of the patent document, namely title, abstract and claims

  16. IRA Pivot Table Review Using Analyze to Modify Reports

    E-Print Network [OSTI]

    1 IRA Pivot Table Review and Using Analyze to Modify Reports For help, email Financial.Reports in a downloadable table) and summarizes them at a higher level using a defined structure. For help, email Financial.Reports@dartmouth.edu Grand Total Section is a pivot table of the detail in the downloadable table or report table. #12;3 What

  17. Analyzing Robot Behavior in E-Business Sites Virgilio Almeiday

    E-Print Network [OSTI]

    Riedi, Rudolf H.

    Analyzing Robot Behavior in E-Business Sites Virg´ilio Almeiday Daniel Menasc´ez Rudolf Riedi x Fl. Engineering Rice University Houston TX 77251 USA riedi@rice.edu 1. INTRODUCTION The population of robots, i driven, but rather the consequence of a computer program. In this study, we collectively call robots

  18. Analyze Influenza Virus Sequences Using Binary Encoding Approach

    E-Print Network [OSTI]

    Boley, Daniel

    Analyze Influenza Virus Sequences Using Binary Encoding Approach Ham Ching Lam , Srinand Sreevatsan and Daniel Boley Abstract Capturing mutation patterns of each individual influenza virus sequence is often reduction technique, we were able to capture the intrinsic mutation pattern of the virus. Our approach looks

  19. A Robust Optimization Framework for Analyzing Distribution Systems with Transshipment

    E-Print Network [OSTI]

    Chaudhuri, Sanjay

    A Robust Optimization Framework for Analyzing Distribution Systems with Transshipment Mabel Chou operations. Mabel Chou NUS Business School National University of Singapore Singapore 117592 Email: bizchoum Email: dscsimm@nus.edu.sg Kut C. So The Paul Merage School of Business University of California Irvine

  20. Analyzing Business Continuity through a Multi-Layers Model

    E-Print Network [OSTI]

    Analyzing Business Continuity through a Multi-Layers Model Yudistira Asnar and Paolo Giorgini.asnar,paolo.giorgini}@disi.unitn.it Abstract. Business Continuity Management (BCM) is a process to manage risks, emergencies, and recovery plans of an organization during a crisis. It results in a document called Business Continuity Plans (BCP

  1. Analyzing Facebook Privacy Settings: User Expectations vs. Reality

    E-Print Network [OSTI]

    Gummadi, Krishna P.

    Analyzing Facebook Privacy Settings: User Expectations vs. Reality Yabing Liu Northeastern of personal data has emerged as a popular ac- tivity over online social networking sites like Facebook- tween the desired and actual privacy settings, quantifying the magnitude of the problem of managing

  2. SUPERNOVA NUCLEOSYNTHESIS AS A TOOL TO ANALYZE THE EXPLOSION MECHANISM

    E-Print Network [OSTI]

    Rauscher, Thomas

    SUPERNOVA NUCLEOSYNTHESIS AS A TOOL TO ANALYZE THE EXPLOSION MECHANISM F.­K. Thielemann 1;4 , F for the explosion and ejection of matter. This affects the nucleosynthesis products via two main uncertainties, (i energy responsible for explosive nucleosynthesis. Thus, observations can constrain these quantities. Type

  3. Framework to analyze Risk of Climate Change on Water

    E-Print Network [OSTI]

    Keller, Arturo A.

    climate- related physical or regulatory water shortage risks for power generation · Technology development : ­ Improved and Advanced Cooling Technologies project Our focus here EDF-EPRI "Water-Climate" partnership #12Framework to analyze Risk of Climate Change on Water and Energy Sustainability Denis AELBRECHT

  4. Flow patterns in vertical two-phase flow

    SciTech Connect (OSTI)

    McQuillan, K.W.; Whalley, P.B.

    1985-03-01

    This paper is concerned with the flow patterns which occur in upwards gas-liquid two-phase flow in vertical tubes. The basic flow patterns are described and the use of flow patter maps is discussed. The transition between plug flow and churn flow is modelled under the assumption that flooding of the falling liquid film limits the stability of plug flow. The resulting equation is combined with other flow pattern transition equations to produce theoretical flow pattern maps, which are then tested against experimental flow pattern data. Encouraging agreement is obtained.

  5. Forced Granular Orifice Flow

    E-Print Network [OSTI]

    Zheng Peng; Hepeng Zheng; Yimin Jiang

    2009-09-06

    The flow of granular material through an orifice is studied experimentally as a function of force $F$ pushing the flow. It is found that the flow rate increases linearly with $F$ -- a new, unexpected result that is in contrast to the usual view that $F$, completely screened by an arch formed around the orifice, has no way of altering the rate. Employing energy balance, we show that this behavior results mainly from dissipation in the granular material.

  6. Turbulent flow in graphene

    E-Print Network [OSTI]

    Kumar S. Gupta; Siddhartha Sen

    2010-06-05

    We demonstrate the possibility of a turbulent flow of electrons in graphene in the hydrodynamic region, by calculating the corresponding turbulent probability density function. This is used to calculate the contribution of the turbulent flow to the conductivity within a quantum Boltzmann approach. The dependence of the conductivity on the system parameters arising from the turbulent flow is very different from that due to scattering.

  7. Solids mass flow determination

    DOE Patents [OSTI]

    Macko, Joseph E. (Hempfield Township, Westmoreland County, PA)

    1981-01-01

    Method and apparatus for determining the mass flow rate of solids mixed with a transport fluid to form a flowing mixture. A temperature differential is established between the solids and fluid. The temperature of the transport fluid prior to mixing, the temperature of the solids prior to mixing, and the equilibrium temperature of the mixture are monitored and correlated in a heat balance with the heat capacities of the solids and fluid to determine the solids mass flow rate.

  8. Plant analyzer development for high-speed interactive simulation of BWR plant transients

    SciTech Connect (OSTI)

    Wulff, W.; Cheng, H.S.; Mallen, A.N.

    1986-01-01

    Advanced modeling techniques have been combined with modern, special-purpose peripheral minicomputer technology to develop a plant analyzer which provides realistic and accurate predictions of plant transients and severe off-normal events in nuclear power plants through on-line simulations at speeds of approximately 10 times faster than actual process speeds. The new simulation technology serves not only for carrying out routinely and efficiently safety analyses, optimizations of emergency procedures and design changes, parametric studies for obtaining safety margins and for generic training but also for assisting plant operations. Five modeling principles are presented which serve to achieve high-speed simulation of neutron kinetics, thermal conduction, nonhomogeneous and nonequilibrium two-phase flow coolant dynamics, steam line acoustical effects, and the dynamics of the balance of plant and containment systems, control systems and plant protection systems. 21 refs.

  9. Hydrogeophysical methods for analyzing aquifer storage and recovery systems

    SciTech Connect (OSTI)

    Minsley, B.J.; Ajo-Franklin, J.; Mukhopadhyay, A.; Morgan, F.D.

    2009-12-01

    Hydrogeophysical methods are presented that support the siting and monitoring of aquifer storage and recovery (ASR) systems. These methods are presented as numerical simulations in the context of a proposed ASR experiment in Kuwait, although the techniques are applicable to numerous ASR projects. Bulk geophysical properties are calculated directly from ASR flow and solute transport simulations using standard petrophysical relationships and are used to simulate the dynamic geophysical response to ASR. This strategy provides a quantitative framework for determining site-specific geophysical methods and data acquisition geometries that can provide the most useful information about the ASR implementation. An axisymmetric, coupled fluid flow and solute transport model simulates injection, storage, and withdrawal of fresh water (salinity {approx}500 ppm) into the Dammam aquifer, a tertiary carbonate formation with native salinity approximately 6000 ppm. Sensitivity of the flow simulations to the correlation length of aquifer heterogeneity, aquifer dispersivity, and hydraulic permeability of the confining layer are investigated. The geophysical response using electrical resistivity, time-domain electromagnetic (TEM), and seismic methods is computed at regular intervals during the ASR simulation to investigate the sensitivity of these different techniques to changes in subsurface properties. For the electrical and electromagnetic methods, fluid electric conductivity is derived from the modeled salinity and is combined with an assumed porosity model to compute a bulk electrical resistivity structure. The seismic response is computed from the porosity model and changes in effective stress due to fluid pressure variations during injection/recovery, while changes in fluid properties are introduced through Gassmann fluid substitution.

  10. Analyzing the impacts of sales tax on agricultural inputs 

    E-Print Network [OSTI]

    Lamar, Christina Helweg

    1992-01-01

    for public services, particularly for education, the Texas legislature faced a possible $4 billion budget shortfall in the 1992-93 biennium for the first time in its history. This situation caused legislators to consider possible options to raise... budget shortfall in the 1992-93 biennium for the first time in its history. This situation caused legislators to consider possil&le options to raise the needed revenue. Of the options analyzed, the imposition of a sales tax on previously exempted...

  11. Recommendations for Analyzing Accidents Under NEPA | Department of Energy

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on DeliciousMathematicsEnergyInterested PartiesBuildingBudget ||DepartmentReadout ofRecappingEnvironmentalAnalyzing

  12. Development of an On-Line Coal Washability Analyzer

    SciTech Connect (OSTI)

    C. L. Lin; G. H. Luttrell; G. T. Adel; Jan D. Miller

    1998-03-31

    Washability analysis is the basis for nearly all coal preparation plant separations. Unfortunately, there are no on-line techniques for determining this most fundamental of all coal cleaning information. In light of recent successes at the University of Utah, it now appears possible to determine coal washability on-line through the use of x-ray computed tomography (CT) analysis. The successful development of such a device is critical to the establishment of process control and automated coal blending systems. In this regard, Virginia Tech, Terra Tek Inc., and Cyprus-Amax Coal Company have joined with the University of Utah and agreed to undertake the development of a x-ray CT-based on-line coal washability analyzer with financial assistance from DOE. The three-year project will cost $594,571, of which 33% ($194,575) will be cost-shared by the participants. The project will involve development of appropriate software and extensive testing/evaluation of well-characterized coal samples from three coal preparation plants. Each project participant brings special expertise to the project which is expected to create a new dimension in coal cleaning technology. Finally, it should be noted that the analyzer may prove to be a universal analyzer capable of providing not only washability analysis, but also particle size distribution analysis, ash analysis and perhaps pyritic sulfur analysis.

  13. Balanced Flow Geostrophic, Inertial, Gradient, and Cyclostrophic Flow

    E-Print Network [OSTI]

    Hennon, Christopher C.

    Balanced Flow Geostrophic, Inertial, Gradient, and Cyclostrophic Flow The types of atmospheric flows describe here have the following characteristics: 1) Steady state (meaning that the flows do surfaces) These are "idealized" flows, created by balances of horizontal forces. They provide a qualitative

  14. Productivity & Energy Flow

    E-Print Network [OSTI]

    Mitchell, Randall J.

    1 Productivity & Energy Flow Ecosystem approach, focuses: on flow of energy, water, and nutrients (capture) of energy by autotrophs Gross (total) Net (total ­ costs) Secondary productivity- capture of energy by herbivores http://sciencebitz.com/?page_id=204 What Controls the Primary Productivity

  15. Elbow mass flow meter

    DOE Patents [OSTI]

    McFarland, A.R.; Rodgers, J.C.; Ortiz, C.A.; Nelson, D.C.

    1994-08-16

    The present invention includes a combination of an elbow pressure drop generator and a shunt-type mass flow sensor for providing an output which gives the mass flow rate of a gas that is nearly independent of the density of the gas. For air, the output is also approximately independent of humidity. 3 figs.

  16. Microelectromechanical flow control apparatus

    SciTech Connect (OSTI)

    Okandan, Murat (NE Albuquerque, NM)

    2009-06-02

    A microelectromechanical (MEM) flow control apparatus is disclosed which includes a fluid channel formed on a substrate from a first layer of a nonconducting material (e.g. silicon nitride). A first electrode is provided on the first layer of the nonconducting material outside the flow channel; and a second electrode is located on a second layer of the nonconducting material above the first layer. A voltage applied between the first and second electrodes deforms the fluid channel to increase its cross-sectional size and thereby increase a flow of a fluid through the channel. In certain embodiments of the present invention, the fluid flow can be decreased or stopped by applying a voltage between the first electrode and the substrate. A peristaltic pumping of the fluid through the channel is also possible when the voltage is applied in turn between a plurality of first electrodes and the substrate. A MEM flow control assembly can also be formed by providing one or more MEM flow control devices on a common substrate together with a submicron filter. The MEM flow control assembly can optionally include a plurality of pressure sensors for monitoring fluid pressure and determining flow rates through the assembly.

  17. Statistical Tools for Analyzing the Cosmic Ray Energy Spectrum

    E-Print Network [OSTI]

    J. D. Hague; B. R. Becker; M. S. Gold; J. A. J. Matthews

    2008-08-20

    In this paper un-binned statistical tools for analyzing the cosmic ray energy spectrum are developed and illustrated with a simulated data set. The methods are designed to extract accurate and precise model parameter estimators in the presence of statistical and systematic energy errors. Two robust methods are used to test for the presence of flux suppression at the highest energies: the Tail-Power statistic and a likelihood ratio test. Both tests give evidence of flux suppression in the simulated data. The tools presented can be generalized for use on any astrophysical data set where the power-law assumption is relevant and can be used to aid observational design.

  18. Systems and methods for modeling and analyzing networks

    DOE Patents [OSTI]

    Hill, Colin C; Church, Bruce W; McDonagh, Paul D; Khalil, Iya G; Neyarapally, Thomas A; Pitluk, Zachary W

    2013-10-29

    The systems and methods described herein utilize a probabilistic modeling framework for reverse engineering an ensemble of causal models, from data and then forward simulating the ensemble of models to analyze and predict the behavior of the network. In certain embodiments, the systems and methods described herein include data-driven techniques for developing causal models for biological networks. Causal network models include computational representations of the causal relationships between independent variables such as a compound of interest and dependent variables such as measured DNA alterations, changes in mRNA, protein, and metabolites to phenotypic readouts of efficacy and toxicity.

  19. System and method for modeling and analyzing complex scenarios

    DOE Patents [OSTI]

    Shevitz, Daniel Wolf

    2013-04-09

    An embodiment of the present invention includes a method for analyzing and solving possibility tree. A possibility tree having a plurality of programmable nodes is constructed and solved with a solver module executed by a processor element. The solver module executes the programming of said nodes, and tracks the state of at least a variable through a branch. When a variable of said branch is out of tolerance with a parameter, the solver disables remaining nodes of the branch and marks the branch as an invalid solution. The valid solutions are then aggregated and displayed as valid tree solutions.

  20. Systems and methods for analyzing building operations sensor data

    DOE Patents [OSTI]

    Mezic, Igor; Eisenhower, Bryan A.

    2015-05-26

    Systems and methods are disclosed for analyzing building sensor information and decomposing the information therein to a more manageable and more useful form. Certain embodiments integrate energy-based and spectral-based analysis methods with parameter sampling and uncertainty/sensitivity analysis to achieve a more comprehensive perspective of building behavior. The results of this analysis may be presented to a user via a plurality of visualizations and/or used to automatically adjust certain building operations. In certain embodiments, advanced spectral techniques, including Koopman-based operations, are employed to discern features from the collected building sensor data.

  1. System and method for statistically monitoring and analyzing sensed conditions

    DOE Patents [OSTI]

    Pebay, Philippe P. (Livermore, CA); Brandt, James M. (Dublin, CA), Gentile; Ann C. (Dublin, CA), Marzouk; Youssef M. (Oakland, CA), Hale; Darrian J. (San Jose, CA), Thompson; David C. (Livermore, CA)

    2010-07-13

    A system and method of monitoring and analyzing a plurality of attributes for an alarm condition is disclosed. The attributes are processed and/or unprocessed values of sensed conditions of a collection of a statistically significant number of statistically similar components subjected to varying environmental conditions. The attribute values are used to compute the normal behaviors of some of the attributes and also used to infer parameters of a set of models. Relative probabilities of some attribute values are then computed and used along with the set of models to determine whether an alarm condition is met. The alarm conditions are used to prevent or reduce the impact of impending failure.

  2. System and method for statistically monitoring and analyzing sensed conditions

    DOE Patents [OSTI]

    Pebay, Philippe P. (Livermore, CA); Brandt, James M. (Dublin, CA); Gentile, Ann C. (Dublin, CA); Marzouk, Youssef M. (Oakland, CA); Hale, Darrian J. (San Jose, CA); Thompson, David C. (Livermore, CA)

    2011-01-25

    A system and method of monitoring and analyzing a plurality of attributes for an alarm condition is disclosed. The attributes are processed and/or unprocessed values of sensed conditions of a collection of a statistically significant number of statistically similar components subjected to varying environmental conditions. The attribute values are used to compute the normal behaviors of some of the attributes and also used to infer parameters of a set of models. Relative probabilities of some attribute values are then computed and used along with the set of models to determine whether an alarm condition is met. The alarm conditions are used to prevent or reduce the impact of impending failure.

  3. System and method for statistically monitoring and analyzing sensed conditions

    DOE Patents [OSTI]

    Pebay, Philippe P. (Livermore, CA); Brandt, James M. (Dublin, CA); Gentile, Ann C. (Dublin, CA); Marzouk, Youssef M. (Oakland, CA); Hale, Darrian J. (San Jose, CA); Thompson, David C. (Livermore, CA)

    2011-01-04

    A system and method of monitoring and analyzing a plurality of attributes for an alarm condition is disclosed. The attributes are processed and/or unprocessed values of sensed conditions of a collection of a statistically significant number of statistically similar components subjected to varying environmental conditions. The attribute values are used to compute the normal behaviors of some of the attributes and also used to infer parameters of a set of models. Relative probabilities of some attribute values are then computed and used along with the set of models to determine whether an alarm condition is met. The alarm conditions are used to prevent or reduce the impact of impending failure.

  4. Effect of flow fluctuations and nonflow on elliptic flow methods

    E-Print Network [OSTI]

    Ollitrault, Jean-Yves

    2009-01-01

    24.10.Nz I. INTRODUCTION II. FLOW METHODS Elliptic ?ow hasin the participant plane. Flow methods involve variousow e?ects are negligible. Flow ?uctuations modify both the

  5. Size distribution of particle systems analyzed with organic photodetectors

    E-Print Network [OSTI]

    Sentis, Matthias

    2015-01-01

    As part of a consortium between academic and industry, this PhD work investigates the interest and capabilities of organic photo-sensors (OPS) for the optical characterization of suspensions and two-phase flows. The principle of new optical particle sizing instruments is proposed to characterize particle systems confined in a cylinder glass (standard configuration for Process Analytical Technologies). To evaluate and optimize the performance of these systems, a Monte-Carlo model has been specifically developed. This model accounts for the numerous parameters of the system: laser beam profile, mirrors, lenses, sample cell, particle medium properties (concentration, mean & standard deviation, refractive indices), OPS shape and positions, etc. Light scattering by particles is treated either by using Lorenz-Mie theory, Debye, or a hybrid model (that takes into account the geometrical and physical contributions). For diluted media (single scattering), particle size analysis is based on the inversion of scatter...

  6. Chaos and scaling in daily river flow

    E-Print Network [OSTI]

    M. De Domenico; M. Ali Ghorbani

    2011-04-07

    Adequate knowledge of the nature of river flow process is crucial for proper planning and management of our water resources and environment. This study attempts to detect the salient characteristics of flow dynamics of the Karoon River in Iran. Daily discharge series observed over a period of six years (1999-2004) is analyzed to examine the chaotic and scaling characteristics of the flow dynamics. The presence of chaos is investigated through the correlation dimension and Lyapunov exponent methods, while the Hurst exponent and R\\'enyi dimension analyses are performed to explore the scaling characteristics. The low correlation dimension ($2.60 \\pm 0.07$) and the positive largest Lyapunov exponent ($0.014 \\pm 0.001$) suggest the presence of low-dimensional chaos; they also imply that the flow dynamics are dominantly governed by three variables and can be reliably predicted up to 48 days (i.e. prediction horizon). Results from the Hurst exponent and R\\'enyi dimension analyses reveal the multifractal character of the flow dynamics, with persistent and anti-persistent behaviors observed at different time scales.

  7. Flow Battery System Design for Manufacturability.

    SciTech Connect (OSTI)

    Montoya, Tracy Louise; Meacham, Paul Gregory; Perry, David; Broyles, Robin S.; Hickey, Steven; Hernandez, Jacquelynne

    2014-10-01

    Flow battery energy storage systems can support renewable energy generation and increase energy efficiency. But, presently, the costs of flow battery energy storage systems can be a significant barrier for large-scale market penetration. For cost- effective systems to be produced, it is critical to optimize the selection of materials and components simultaneously with the adherence to requirements and manufacturing processes to allow these batteries and their manufacturers to succeed in the market by reducing costs to consumers. This report analyzes performance, safety, and testing requirements derived from applicable regulations as well as commercial and military standards that would apply to a flow battery energy storage system. System components of a zinc-bromine flow battery energy storage system, including the batteries, inverters, and control and monitoring system, are discussed relative to manufacturing. The issues addressed include costs and component availability and lead times. A service and support model including setup, maintenance and transportation is outlined, along with a description of the safety-related features of the example flow battery energy storage system to promote regulatory and environmental, safety, and health compliance in anticipation of scale manufacturing.

  8. Application of convolution and average pressure approximation for solving non-linear flow problems. constant pressure inner boundary condition for gas flow 

    E-Print Network [OSTI]

    Zhakupov, Mansur

    2006-08-16

    The accurate description of fluid flow through porous media allows an engineer to properly analyze past behavior and predict future reservoir performance. In particular, appropriate mathematical models which describe fluid ...

  9. Enzyme immunoassay of thyroxin with a centrifugal analyzer

    SciTech Connect (OSTI)

    Izquierdo, J.M.; Sotorrio, P.; Quiros, A.

    1982-01-01

    We have applied a homogeneous enzyme immunoassay for determination of thyroxinin serum to the ''Cobas Bio'' centrifugal analyzer. To unbind thyroxin from its protein complex, serum is treated for 20 min with a solution of NaOH containing ''Lipex,'' an agent for sequestering free fatty acids. The immunoenzymic reaction is then automatically performed by the analyzer at 37/sup 0/C. To 20 ..mu..L of sample mixture is added 125 ..mu..L of reagent (thyroxin antibodies and NAD/sup +/) and this mixture is incubated for 10 s. Then 25 ..mu..L of start reagent (enzyme-thyroxin conjugate and malate substrate) is added and the change in absorbance is monitored at 340 nm. The standard curve is linear up to at least 200 ..mu..g of thyroxin per liter. Within-assay precision (CV) varied from 1.1 to 2.9%, between-assay precision from 3.1 to 7.8%. Analytical recovery of thyroxin was complete. The deviation of control samples from target values ranged from -2.1% to 7.0%. Interference by hemoglobin or bilirubin is negligible. Results compare favorably with those by radioimmunoassay.

  10. Bedrock Erosion by Granular Flow

    E-Print Network [OSTI]

    Hsu, Leslie

    2010-01-01

    of boulders later in the flow when the matrix has thickenedMaximum height of the flow is 3.3 m. Appendix A true storyThe physics of debris flows, Reviews of Geophysics 35(3),

  11. Magnetically stimulated fluid flow patterns

    SciTech Connect (OSTI)

    Martin, Jim; Solis, Kyle

    2014-03-06

    Sandia National Laboratories' Jim Martin and Kyle Solis explain research on the effects of magnetic fields on fluid flows and how they stimulate vigorous flows. Fluid flow is a necessary phenomenon in everything from reactors to cooling engines in cars.

  12. Magnetically stimulated fluid flow patterns

    ScienceCinema (OSTI)

    Martin, Jim; Solis, Kyle

    2014-08-06

    Sandia National Laboratories' Jim Martin and Kyle Solis explain research on the effects of magnetic fields on fluid flows and how they stimulate vigorous flows. Fluid flow is a necessary phenomenon in everything from reactors to cooling engines in cars.

  13. Redox Flow Batteries, a Review

    E-Print Network [OSTI]

    Weber, Adam Z.

    2013-01-01

    of a Vanadium Redox-Flow Battery to Maintain Power Quality,"Fuel System Using Redox Flow Battery," ed: WO Patentand D. B. Hickey, "Redox Flow Battery System for Distributed

  14. Enviro Hurdles: Instream Flow | Department of Energy

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

    Hurdles: Instream Flow Enviro Hurdles: Instream Flow Enviro Hurdles: Instream Flow 76enviornlbevelhimer4.pptx More Documents & Publications Instream Flow Project Development and...

  15. Final Report for "Analyzing and visualizing next generation climate data"

    SciTech Connect (OSTI)

    Pletzer, Alexander

    2012-11-13

    The project "Analyzing and visualizing next generation climate data" adds block-structured (mosaic) grid support, parallel processing, and 2D/3D curvilinear interpolation to the open-source UV-CDAT climate data analysis tool. Block structured grid support complies to the Gridspec extension submitted to the Climate and Forecast metadata conventions. It contains two parts: aggregation of data spread over multiple mosaic tiles (M-SPEC) and aggregation of temporal data stored in different files (F-SPEC). Together, M-SPEC and F-SPEC allow users to interact with data stored in multiple files as if the data were in a single file. For computational expensive tasks, a flexible, multi-dimensional, multi-type distributed array class allows users to process data in parallel using remote memory access. Both nodal and cell based interpolation is supported; users can choose between different interpolation libraries including ESMF and LibCF depending on the their particular needs.

  16. Description of the prototype diagnostic residual gas analyzer for ITER

    SciTech Connect (OSTI)

    Younkin, T. R.; Biewer, T. M.; Klepper, C. C.; Marcus, C.

    2014-11-15

    The diagnostic residual gas analyzer (DRGA) system to be used during ITER tokamak operation is being designed at Oak Ridge National Laboratory to measure fuel ratios (deuterium and tritium), fusion ash (helium), and impurities in the plasma. The eventual purpose of this instrument is for machine protection, basic control, and physics on ITER. Prototyping is ongoing to optimize the hardware setup and measurement capabilities. The DRGA prototype is comprised of a vacuum system and measurement technologies that will overlap to meet ITER measurement requirements. Three technologies included in this diagnostic are a quadrupole mass spectrometer, an ion trap mass spectrometer, and an optical penning gauge that are designed to document relative and absolute gas concentrations.

  17. Laser beam apparatus and method for analyzing solar cells

    DOE Patents [OSTI]

    Staebler, David L. (Lawrenceville, NJ)

    1980-01-01

    A laser beam apparatus and method for analyzing, inter alia, the current versus voltage curve at the point of illumination on a solar cell and the open circuit voltage of a solar cell. The apparatus incorporates a lock-in amplifier, and a laser beam light chopper which permits the measurement of the AC current of the solar cell at an applied DC voltage at the position on the solar cell where the cell is illuminated and a feedback scheme which permits the direct scanning measurements of the open circuit voltage. The accuracy of the measurement is a function of the intensity and wavelength of the laser light with respect to the intensity and wavelength distribution of sunlight and the percentage the dark current is at the open circuit voltage to the short circuit current of the solar cell.

  18. Capturing and Analyzing User Behavior in Large Digital Libraries

    E-Print Network [OSTI]

    Gvianishvili, Giorgi; Šimko, Tibor; Caffaro, Jérôme; Marian, Ludmila; Kaplun, Samuele; Chan, Belinda; Rajman, Martin

    2010-01-01

    The size of digital libraries is increasing, making navigation and access to information more challenging. Improving the system by observing the users’ activities can help at providing better services to users of very large digital libraries. In this paper we explain how the Invenio open-source software, used by the CERN Document Server (CDS) allows fine grained logging of user behavior. In the first phase, the sequence of actions performed by users of CDS is captured, while in the second phase statistical data is calculated offline. This paper explains these two steps and the results. Although the analyzed system focuses on the high energy physics literature, the process could be applicable to other scientific communities, with and international, large user base.

  19. Single phase flow visualization using Digital Pulsed Laser Velocimetry 

    E-Print Network [OSTI]

    Hild, Robert David

    1989-01-01

    for Single Phase Flow: Experiment z511m-z511r. . . . X. 4 Velocity Vectors for Two Phase Flow: Experiment z726a-z726f (Sigma Cutoff=10. 0) . X. 5 Velocity Vecttus for Two Phase Flow: Experiment z726a-z726f (Sigma Cutoff=0. 020) . 83 . . . 84 96 97... captured. This code was originally intended for six frames of video to be analyzed, however, it was written to accept a variable number of frames greater than four. It has been tested on six, nine, and ten frames of video and performs correctly; 9...

  20. Flow Map Manager 

    E-Print Network [OSTI]

    Moya, Maria J

    2011-11-24

    Long-distance bus companies, operate services along routes which have a flow of passengers. Along a route some passengers will leave the bus while others join. To monitor demand sufficiently well a tool is required which can help estimate...

  1. Complex Flow Workshop Report

    SciTech Connect (OSTI)

    none,

    2012-05-01

    This report documents findings from a workshop on the impacts of complex wind flows in and out of wind turbine environments, the research needs, and the challenges of meteorological and engineering modeling at regional, wind plant, and wind turbine scales.

  2. Optical flow switching

    E-Print Network [OSTI]

    Chan, Vincent W. S.

    Present-day networks are being challenged by dramatic increases in bandwidth demand of emerging applications. We will explore a new transport, ldquooptical flow switchingrdquo, that will enable significant growth and ...

  3. Parallel flow diffusion battery

    DOE Patents [OSTI]

    Yeh, H.C.; Cheng, Y.S.

    1984-01-01

    A parallel flow diffusion battery for determining the mass distribution of an aerosol has a plurality of diffusion cells mounted in parallel to an aerosol stream, each diffusion cell including a stack of mesh wire screens of different density.

  4. Parallel flow diffusion battery

    DOE Patents [OSTI]

    Yeh, Hsu-Chi (Albuquerque, NM); Cheng, Yung-Sung (Albuquerque, NM)

    1984-08-07

    A parallel flow diffusion battery for determining the mass distribution of an aerosol has a plurality of diffusion cells mounted in parallel to an aerosol stream, each diffusion cell including a stack of mesh wire screens of different density.

  5. Polarized 3He Gas Circulating Technologies for Neutron Analyzers

    SciTech Connect (OSTI)

    Watt, David; Hersman, Bill

    2014-12-10

    We describe the development of an integrated system for quasi-continuous operation of a large volume neutron analyzer. The system consists of a non-magnetic diaphragm compressor, a prototype large volume helium polarizer, a surrogate neutron analyzer, a non-depolarizing gas storage reservoir, a non-ferrous valve manifold for handling gas distribution, a custom rubidium-vapor gas return purifier, and wire-wound transfer lines, all of which are immersed in a two-meter external magnetic field. Over the Phase II period we focused on three major tasks required for the successful deployment of these types of systems: 1) design and implementation of gas handling hardware, 2) automation for long-term operation, and 3) improvements in polarizer performance, specifically fabrication of aluminosilicate optical pumping cells. In this report we describe the design, implementation, and testing of the gas handling hardware. We describe improved polarizer performance resulting from improved cell materials and fabrication methods. These improvements yielded valved 8.5 liter cells with relaxation times greater than 12 hours. Pumping this cell with 1500W laser power with 1.25nm linewidth yielded peak polarizations of 60%, measured both inside and outside the polarizer. Fully narrowing this laser to 0.25nm, demonstrated separately on one stack of the four, would have allowed 70% polarization with this cell. We demonstrated the removal of 5 liters of polarized helium from the polarizer with no measured loss of polarization. We circulated the gas through a titanium-clad compressor with polarization loss below 3% per pass. We also prepared for the next phase of development by refining the design of the polarizer so that it can be engineer-certified for pressurized operation. The performance of our system far exceeds comparable efforts elsewhere.

  6. Electrochemical flow capacitors

    DOE Patents [OSTI]

    Gogotsi, Yury; Presser, Volker; Kumbar, Emin Caglan

    2015-11-05

    The present invention generally relates to devices for energy storage technologies, and more particularly to electrochemical flow capacitor systems and applications. In some aspects, these flow capacitors have at least one electrode comprising a non-stationary solid or semi-solid composition comprising supercapacitive particles and an electrolytic solvent in electrical communication with at least one current collector, and energy is stored and/or released by charging and/or discharging the electrode(s).

  7. Electrochemical flow capacitors

    DOE Patents [OSTI]

    Gogotsi, Yury; Presser, Volker; Kumbur, Emin Caglan

    2015-10-27

    The present invention generally relates to devices for energy storage technologies, and more particularly to electrochemical flow capacitor systems and applications. In some aspects, these flow capacitors have at least one electrode comprising a non-stationary solid or semi-solid composition comprising supercapacitive particles and an electrolytic solvent in electrical communication with at least one current collector, and energy is stored and/or released by charging and/or discharging the electrode(s).

  8. Fusion Engineering and Design 81 (2006) 549553 Numerical analysis of MHD flow and heat transfer in a

    E-Print Network [OSTI]

    Abdou, Mohamed

    2006-01-01

    Fusion Engineering and Design 81 (2006) 549­553 Numerical analysis of MHD flow and heat transfer January 2006 Abstract MHD flow and heat transfer have been analyzed for a front poloidal channel blanket; Magnetohydrodynamics; Heat transfer 1. Introduction Using flow channel inserts (FCIs) made

  9. Analyzing Vehicle Fuel Saving Opportunities through Intelligent Driver Feedback

    SciTech Connect (OSTI)

    Gonder, J.; Earleywine, M.; Sparks, W.

    2012-06-01

    Driving style changes, e.g., improving driver efficiency and motivating driver behavior changes, could deliver significant petroleum savings. This project examines eliminating stop-and-go driving and unnecessary idling, and also adjusting acceleration rates and cruising speeds to ideal levels to quantify fuel savings. Such extreme adjustments can result in dramatic fuel savings of over 30%, but would in reality only be achievable through automated control of vehicles and traffic flow. In real-world driving, efficient driving behaviors could reduce fuel use by 20% on aggressively driven cycles and by 5-10% on more moderately driven trips. A literature survey was conducted of driver behavior influences, and pertinent factors from on-road experiments with different driving styles were observed. This effort highlighted important driver influences such as surrounding vehicle behavior, anxiety over trying to get somewhere quickly, and the power/torque available from the vehicle. Existing feedback approaches often deliver efficiency information and instruction. Three recommendations for maximizing fuel savings from potential drive cycle improvement are: (1) leveraging applications with enhanced incentives, (2) using an approach that is easy and widely deployable to motivate drivers, and (3) utilizing connected vehicle and automation technologies to achieve large and widespread efficiency improvements.

  10. Conjugate flow action functionals

    E-Print Network [OSTI]

    Daniele Venturi

    2013-10-15

    We present a new general method to construct an action functional for a non-potential field theory. The key idea relies on representing the governing equations of the theory relative to a diffeomorphic flow of curvilinear coordinates which is assumed to be functionally dependent on the solution field. Such flow, which will be called the conjugate flow of the theory, evolves in space and time similarly to a physical fluid flow of classical mechanics and it can be selected in order to symmetrize the Gateaux derivative of the field equations with respect to suitable local bilinear forms. This is equivalent to requiring that the governing equations of the field theory can be derived from a principle of stationary action on a Lie group manifold. By using a general operator framework, we obtain the determining equations of such manifold and the corresponding conjugate flow action functional. In particular, we study scalar and vector field theories governed by second-order nonlinear partial differential equations. The identification of transformation groups leaving the conjugate flow action functional invariant could lead to the discovery of new conservation laws in fluid dynamics and other disciplines.

  11. Fluid Flow Estimation Through Integration of Physical Flow Configurations

    E-Print Network [OSTI]

    Garbe, Christoph S.

    Fluid Flow Estimation Through Integration of Physical Flow Configurations Christoph S. Garbe IWR, University of Heidelberg Christoph.Garbe@iwr.uni-heidelberg.de Abstract. The measurement of fluid flows is an emerging field for op- tical flow computation. In a number of such applications, a tracer is visualized

  12. Characterization of the Sunset Semi-Continuous Carbon Aerosol Analyzer

    SciTech Connect (OSTI)

    Bauer, Jace J.; Yu, Xiao-Ying; Cary, R.; Laulainen, Nels S.; Berkowitz, Carl M.

    2009-07-01

    Accurate quantification of carbonaceous aerosols is essential for reducing uncertainty in climate change models and is important for long-term air quality monitoring by government agencies. The field-deployable Sunset Semi-Continuous Organic Carbon/Elemental Carbon Aerosol Analyzer (Sunset OCEC) utilizes a modified National Institute for Occupational Safety and Health thermal-optical method to determine total carbon (TC), organic carbon (OC), and elemental carbon (EC) at near real-time; however, its performance is not yet fully characterized. Two collocated Sunset OCEC Analyzers, Unit A and Unit B, were used to determine the relative standard deviation (RSD) and limit of detection (LOD) between June 23 and July 9, 2007, in Richland, Washington, USA. A high-efficiency particulate air filter was utilized to determine the LODs of both instruments. The RSDs between the two Sunset OCECs were 9.12% for TC, 13.0% for Optical OC, and 8.97% for Thermal OC, indicating good precision between the instruments, although the RSDs for Thermal and Optical EC were higher, 29.0% and 48.3%, respectively. The LOD of Unit A was approximately 0.21 µgC/m3 for TC, Optical OC, and Thermal OC, and ~0.004 µgC/m3 for Optical and Thermal EC. Similarly, Unit B had an LOD of ~0.29 µgC/m3 for TC, Optical OC, and Thermal OC, 0.018 µgC/m3 for Optical EC, and 0.004 µgC/m3 for Thermal EC. Factors that may have contributed to the poor RSDs of Thermal and Optical EC include the low EC mass loading in Richland, minor leakage in the oxygen valve of Unit B, and excessive noise from the non-dispersive infrared (NDIR) laser in Unit B, resulting in scattered Optical EC measurements. Improved RSDs of all OC and EC parameters are expected after the Unit B NDIR is tuned up. Future work should reevaluate the precision of the Sunset OCECs and investigate the differences in various thermal-optical protocols on OCEC quantification.

  13. Rapid response sensor for analyzing Special Nuclear Material

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Mitra, S. S.; Doron, O.; Chen, A. X.; Antolak, A. J.

    2015-06-18

    Rapid in-situ analytical techniques are attractive for characterizing Special Nuclear Material (SNM). Present techniques are time consuming, and require sample dissolution. Proof-of-principal studies are performed to demonstrate the utility of employing low energy neutrons from a portable pulsed neutron generator for non-destructive isotopic analysis of nuclear material. In particular, time-sequenced data acquisition, operating synchronously with the pulsing of a neutron generator, partitions the characteristic elemental prompt gamma-rays according to the type of the reaction; inelastic neutron scattering reactions during the ON state and thermal neutron capture reactions during the OFF state of the generator. Thus, the key challenge is isolatingmore »these signature gamma- rays from the prompt fission and ?-delayed gamma-rays that are also produced during the neutron interrogation. A commercial digital multi-channel analyzer has been specially customized to enable time-resolved gamma-ray spectral data to be acquired in multiple user-defined time bins within each of the ON/OFF gate periods of the neutron generator. Preliminary results on new signatures from depleted uranium as well as modeling and benchmarking of the concept are presented, however this approach should should be applicable for virtually all forms of SNM.« less

  14. Encoding and analyzing aerial imagery using geospatial semantic graphs

    SciTech Connect (OSTI)

    Watson, Jean-Paul; Strip, David R.; McLendon, William C.; Parekh, Ojas D.; Diegert, Carl F.; Martin, Shawn Bryan; Rintoul, Mark Daniel

    2014-02-01

    While collection capabilities have yielded an ever-increasing volume of aerial imagery, analytic techniques for identifying patterns in and extracting relevant information from this data have seriously lagged. The vast majority of imagery is never examined, due to a combination of the limited bandwidth of human analysts and limitations of existing analysis tools. In this report, we describe an alternative, novel approach to both encoding and analyzing aerial imagery, using the concept of a geospatial semantic graph. The advantages of our approach are twofold. First, intuitive templates can be easily specified in terms of the domain language in which an analyst converses. These templates can be used to automatically and efficiently search large graph databases, for specific patterns of interest. Second, unsupervised machine learning techniques can be applied to automatically identify patterns in the graph databases, exposing recurring motifs in imagery. We illustrate our approach using real-world data for Anne Arundel County, Maryland, and compare the performance of our approach to that of an expert human analyst.

  15. Method and system for analyzing and classifying electronic information

    DOE Patents [OSTI]

    McGaffey, Robert W. (Oak Ridge, TN); Bell, Michael Allen (Powell, TN); Kortman, Peter J. (Knoxville, TN); Wilson, Charles H. (Etowah, TN)

    2003-04-29

    A data analysis and classification system that reads the electronic information, analyzes the electronic information according to a user-defined set of logical rules, and returns a classification result. The data analysis and classification system may accept any form of computer-readable electronic information. The system creates a hash table wherein each entry of the hash table contains a concept corresponding to a word or phrase which the system has previously encountered. The system creates an object model based on the user-defined logical associations, used for reviewing each concept contained in the electronic information in order to determine whether the electronic information is classified. The data analysis and classification system extracts each concept in turn from the electronic information, locates it in the hash table, and propagates it through the object model. In the event that the system can not find the electronic information token in the hash table, that token is added to a missing terms list. If any rule is satisfied during propagation of the concept through the object model, the electronic information is classified.

  16. Energy Flow Energy Flow Energy Flow A.Ukleja, T.Tymieniecka, I.Skillicorn 1 Azimuthal asymmetry

    E-Print Network [OSTI]

    Energy Flow Energy Flow Energy Flow A.Ukleja, T.Tymieniecka, I.Skillicorn 1 Azimuthal asymmetry using energy flow method Azimuthal angle distribution at Q2 >100 GeV2 Energy flow method.Ukleja on behalf of the ZEUS Collaboration #12; Energy Flow Energy Flow Energy Flow A.Ukleja, T.Tymieniecka, I

  17. Flow Batteries A Historical Perspective

    E-Print Network [OSTI]

    Flow Batteries A Historical Perspective Robert F. Savinell Case Western Reserve University Department of Chemical Engineering DOE Flow Battery Workshop March 2012 #12;2 OUTLINE ·The first flow cell? ·Review articles- documented progress ·Early NASA Work- some learning ·Fuel Cell and Flow Battery

  18. Two-phase flow studies

    SciTech Connect (OSTI)

    Hanold, R.J.

    1983-12-01

    The two-phase flow program is directed at understanding the hydrodynamics of two-phase flows. The two-phase flow regime is characterized by a series of flow patterns that are designated as bubble, slug, churn, and annular flow. Churn flow has received very little scientific attention. This lack of attention cannot be justified because calculations predict that the churn flow pattern will exist over a substantial portion of the two-phase flow zone in producing geothermal wells. The University of Houston is experimentally investigating the dynamics of churn flow and is measuring the holdup over the full range of flow space for which churn flow exists. These experiments are being conducted in an air/water vertical two-phase flow loop. Brown University has constructed and is operating a unique two-phase flow research facility specifically designed to address flow problems of relevance to the geothermal industry. An important feature of the facility is that it is dedicated to two-phase flow of a single substance (including evaporation and condensation) as opposed to the case of a two-component two-phase flow. This facility can be operated with horizontal or vertical test sections of constant diameter or with step changes in diameter to simulate a geothermal well profile.

  19. Resistive MHD Simulations of Laminar Round Jets with Application to Magnetic Nozzle Flows 

    E-Print Network [OSTI]

    Araya, Daniel

    2012-02-14

    This thesis investigates fundamental flows of resistive magnetohydrodynamics (MHD) by a new numerical tool based on the gas-kinetic method. The motivation for this work stems from the need to analyze the mechanisms of plasma detachment...

  20. Energy-Saving Design for Pressure Difference Control in Variable Flow Air Conditioning Systems 

    E-Print Network [OSTI]

    Chen, Y.; Zhang, Z.

    2006-01-01

    This paper analyzes energy-saving design for pressure-difference control in a variable flow air conditioning system, including the application of a pressure-difference control valve and the installation position of a pressure-difference transducer...

  1. Relationship Between Soil Moisture Storage and Deep Percolation and Subsurface Return Flow 

    E-Print Network [OSTI]

    Nieber, J. L.

    1984-01-01

    A simulation study was performed to analyze the relationship between the volume of moisture stored in a soil profile and the rate of percolation and subsurface return flow. The simulation study was derived on the basis of the Richards equation...

  2. The Effect of Pressure Difference Control on Hydraulic Stability in a Variable Flow Air Conditioning System 

    E-Print Network [OSTI]

    Zhang, Z.; Fu, Y.; Chen, Y.

    2006-01-01

    This paper analyzes the effects of different pressure difference control methods on hydraulic stability in a variable flow air conditioning system when it is applied to different air conditioning water systems. According ...

  3. Electromechanics and electrorheology of fluid flow with internal micro-particle electrorotation

    E-Print Network [OSTI]

    Huang, Hsin-Fu

    2010-01-01

    The negative electrorheological responses of two dimensional Couette and Poiseuille flows with internal micro-particle electrorotation are modeled and analyzed via a set of "fully continuum mechanical modeling field ...

  4. A phenomenological model for rarefied gas flows in thin film slider bearings 

    E-Print Network [OSTI]

    Bahukudumbi, Pradipkumar

    2002-01-01

    We analyze rarefied gas flows in lubricating films that form between the read/write head and rotating recording medium in computer hard drives. A modified slip-corrected Reynolds lubrication equation is derived for arbitrary Knudsen numbers using...

  5. Optimization of Chilled Water Flow and Its Distribution in Central Cooling System 

    E-Print Network [OSTI]

    Maheshwari, G. P.; Hajiah, A. E.; ElSherbini, A. I.

    2007-01-01

    This paper analyzes the impact of chilled water flow and its distribution on energy efficiency and comfort quality, using the results of a field study conducted for a central cooling production system during 2006 in Kuwait. The paper identifies...

  6. Piezoelectric axial flow microvalve

    DOE Patents [OSTI]

    Gemmen, Randall; Thornton, Jimmy; Vipperman, Jeffrey S.; Clark, William W.

    2007-01-09

    This invention is directed to a fuel cell operable with a quantity of fuel and a quantity of an oxidizer to produce electrical power, the fuel cell including a fuel cell body including a labyrinth system structured to permit the fuel and the oxidizer to flow therethrough; at least a first catalyst in fluid communication with the labyrinth; and at least a first microvalve operably disposed within at least a portion of the labyrinth. The microvalve utilizes a deflectable member operable upon the application of a voltage from a voltage source. The microvalve includes an elongated flow channel formed therein and extending substantially longitudinally between the first and second ends to permit substantially longitudinal flow of the fluid therethrough and between the first and second ends; and the deflectable member disposed on the valve body, the deflectable member including at least a first piezoelectric portion that is piezoelectrically operable to deflect the deflectable member between an open position and a closed position upon the application of a voltage, the deflectable member in the closed position being operable to resist the flow of the fluid through the flow channel.

  7. A Big Data Approach to Analyzing Market Volatility

    SciTech Connect (OSTI)

    Wu, Kesheng; Bethel, E. Wes; Gu, Ming; Leinweber, David; Ruebel, Oliver

    2013-06-05

    Understanding the microstructure of the financial market requires the processing of a vast amount of data related to individual trades, and sometimes even multiple levels of quotes. Analyzing such a large volume of data requires tremendous computing power that is not easily available to financial academics and regulators. Fortunately, public funded High Performance Computing (HPC) power is widely available at the National Laboratories in the US. In this paper we demonstrate that the HPC resource and the techniques for data-intensive sciences can be used to greatly accelerate the computation of an early warning indicator called Volume-synchronized Probability of Informed trading (VPIN). The test data used in this study contains five and a half year?s worth of trading data for about 100 most liquid futures contracts, includes about 3 billion trades, and takes 140GB as text files. By using (1) a more efficient file format for storing the trading records, (2) more effective data structures and algorithms, and (3) parallelizing the computations, we are able to explore 16,000 different ways of computing VPIN in less than 20 hours on a 32-core IBM DataPlex machine. Our test demonstrates that a modest computer is sufficient to monitor a vast number of trading activities in real-time ? an ability that could be valuable to regulators. Our test results also confirm that VPIN is a strong predictor of liquidity-induced volatility. With appropriate parameter choices, the false positive rates are about 7percent averaged over all the futures contracts in the test data set. More specifically, when VPIN values rise above a threshold (CDF > 0.99), the volatility in the subsequent time windows is higher than the average in 93percent of the cases.

  8. Irradiated Microsphere Gamma Analyzer for Examination of Particle Fuel

    SciTech Connect (OSTI)

    Paul A. Demkowicz; Various

    2014-06-01

    Fabrication of the first series of fuel compacts for the current US tristructural isotropic (TRISO) coated particle fuel development and qualification effort was completed at Oak Ridge National Laboratory (ORNL) in 2006. In November of 2009, after almost 3 years and 620 effective full power days of irradiation in the Advanced Test Reactor at Idaho National Laboratory (INL), the first Advanced Gas Reactor irradiation test (AGR-1) was concluded. Compacts were irradiated at a calculated timeaveraged, volume-averaged temperature of 955–1136°C to a burnup ranging from 11.2–19.5% fissions per initial metal atom and a total fast fluence of 2.2–4.3·1025 n/m2 [1]. No indication of fission product release from TRISO coating failure was observed during the irradiation test, based on real-time monitoring of gaseous fission products. Post-irradiation examination (PIE) and hightemperature safety testing of the compacts has been in progress at both ORNL and INL since 2010, and have revealed small releases of a limited subset of fission products (such as silver, cesium, and europium). Past experience has shown that some elements can be released from TRISO particles when a defect forms in the SiC layer, even when one or more pyrocarbon layers remain intact and retain the gaseous fission products. Some volatile elements can also be released by diffusion through an intact SiC layer during safety testing if temperatures are high enough and the duration is long enough. In order to understand and quantify the release of certain radioactive fission products, it is sometimes necessary to individually examine each of the more than 4000 coated particles in a given compact. The Advanced Irradiated Microsphere Gamma Analyzer (Advanced- IMGA) was designed to perform this task in a remote hot cell environment. This paper describes the Advanced- IMGA equipment and examination process and gives results for a typical full compact evaluation.

  9. Power flow analysis for amplifier design and energy harvesting

    E-Print Network [OSTI]

    Lindner, Douglas K.

    . In order to improve the efficiency of an active isolation system we analyze different feedback control energy on a active vibration isolation system it is important to understand the influence of the existingPower flow analysis for amplifier design and energy harvesting Nikola Vujica, Donald J. Leoa

  10. Rotational-translational relaxation effects in diatomic-gas flows

    E-Print Network [OSTI]

    Riabov, Vladimir V.

    Rotational-translational relaxation effects in diatomic-gas flows V.V. Riabov Department the nonequilibrium gas dynamic equations from the first prin- ciples of the kinetic theory of gases was studied exchange ratio was analyzed in [2], [3], [4], [5] for polyatomic gas mixtures. In the present study

  11. Flow visualization and leakage measurements of labyrinth seals 

    E-Print Network [OSTI]

    Johnson, James Wayne

    1996-01-01

    , seals are tested over a range of Reynolds numbers, step heights, and axial offset positions (where applicable) for a fixed annular clearance. A permanent flow visualization record for each experiment is kept and analyzed in both real-time and slow motion...

  12. Multiphase cooling flows

    E-Print Network [OSTI]

    Peter A. Thomas

    1996-08-20

    I discuss the multiphase nature of the intracluster medium whose neglect can lead to overestimates of the baryon fraction of clusters by up to a factor of two. The multiphase form of the cooling flow equations are derived and reduced to a simple form for a wide class of self-similar density distributions. It is shown that steady-state cooling flows are \\emph{not} consistent with all possible emissivity profiles which can therefore be used as a test of the theory. In combination, they provide strong constraints on the mass distribution within the cooling radius.

  13. Variable Refrigerant Flow HVAC 

    E-Print Network [OSTI]

    Jones, S.

    2013-01-01

    Variable refrigerant flow technology HVAC CATEE 2013 San Antonio, TX ESL-KT-13-12-33 CATEE 2013: Clean Air Through Energy Efficiency Conference, San Antonio, Texas Dec. 16-18 What is the acronym VRF? ? Variable Refrigerant Flow Operates like a... heat pump utilizing VFD Inverter Compressors and LEV’s Unlike conventional commercial and residential HVAC systems in the USA The predominate method of cooling and heating in the world ESL-KT-13-12-33 CATEE 2013: Clean Air Through Energy Efficiency...

  14. Flow networks: A characterization of geophysical fluid transport

    E-Print Network [OSTI]

    Enrico Ser-Giacomi; Vincent Rossi; Cristobal Lopez; Emilio Hernandez-Garcia

    2015-03-05

    We represent transport between different regions of a fluid domain by flow networks, constructed from the discrete representation of the Perron-Frobenius or transfer operator associated to the fluid advection dynamics. The procedure is useful to analyze fluid dynamics in geophysical contexts, as illustrated by the construction of a flow network associated to the surface circulation in the Mediterranean sea. We use network-theory tools to analyze the flow network and gain insights into transport processes. In particular we quantitatively relate dispersion and mixing characteristics, classically quantified by Lyapunov exponents, to the degree of the network nodes. A family of network entropies is defined from the network adjacency matrix, and related to the statistics of stretching in the fluid, in particular to the Lyapunov exponent field. Finally we use a network community detection algorithm, Infomap, to partition the Mediterranean network into coherent regions, i.e. areas internally well mixed, but with little fluid interchange between them.

  15. Capabilities of Numerical Simulation of Multiphase Flows in Centrifugal Pumps using Modern CFD Software

    E-Print Network [OSTI]

    Kochevsky, A N

    2005-01-01

    The paper describes capabilities of numerical simulation of liquid flows with solid and/or gas admixtures in centrifugal pumps using modern commercial CFD software packages, with the purpose to predict performance curves of the pumps treating such media. In particular, the approaches and multiphase flow models available in the package CFX-5 are described; their advantages and disadvantages are analyzed.

  16. Maximizing the Performance of Wind Turbines with Nonlinear Aeroservoelastic Power Flow Control

    E-Print Network [OSTI]

    1 Maximizing the Performance of Wind Turbines with Nonlinear Aeroservoelastic Power Flow Control by a wind turbine by operating at the edge of dynamic stall. This paper applies a novel nonlinear power flow of the first torsional mode of a nominal 5 MW rated power wind turbine blade. This model is analyzed using

  17. Pollution Attacks and Defenses in Wireless Inter-flow Network Coding Systems

    E-Print Network [OSTI]

    Nita-Rotaru, Cristina

    1 Pollution Attacks and Defenses in Wireless Inter-flow Network Coding Systems Jing Dong, Reza Abstract--We study data pollution attacks in wireless inter-flow network coding systems. Although several the existing systems, and use it to analyze the impact of pollution attacks. Our analysis shows

  18. Coal flow aids reduce coke plant operating costs and improve production rates

    SciTech Connect (OSTI)

    Bedard, R.A.; Bradacs, D.J.; Kluck, R.W.; Roe, D.C.; Ventresca, B.P.

    2005-06-01

    Chemical coal flow aids can provide many benefits to coke plants, including improved production rates, reduced maintenance and lower cleaning costs. This article discusses the mechanisms by which coal flow aids function and analyzes several successful case histories. 2 refs., 10 figs., 1 tab.

  19. Analysis of MSIV-ATWS events with the BNL plant analyzer

    SciTech Connect (OSTI)

    Diamond, D.J.

    1986-01-01

    In a boiling water reactor (MWR) when there is closure of the main steam isolation valves (MSIVs) the energy generated in the core will be transferred to the pressure suppression pool (PSP) via steam that flows out the relief valves. The pool has limited heat capacity as a heat sink and, hence, if there is no reactor trip, there is the possibility that the pool temperature may rise beyond acceptable limits. In the past few years there have been several studies of this problem with emphasis on calculating the power level in the core. In the present study the authors consider the power level as well as the resulting PSP temperature and take into account different assumptions regarding plant parameters and operator actions. The Brookhaven National Laboratory (BNL) Plant Analyzer (BPA) with a BWR/4 plant model was used to do the calculations. The BPA is a special-purpose minicomputer in combination with state-of-the-art thermal-hydraulic modeling that can calculate the behavior of a BWR plant at faster-than-real-time speeds.

  20. Quasi-optical network analyzers and high-reliability RF MEMS switched capacitors

    E-Print Network [OSTI]

    Grichener, Alexander

    2011-01-01

    with an external spectrum analyzer. In this way, thenoise figure of the spectrum analyzer, and F’ LN A (3.3 dB)noise analysis. Since the spectrum analyzer noise figure is

  1. Flow cytometry apparatus

    DOE Patents [OSTI]

    Pinkel, Daniel (Walnut Creek, CA)

    1991-01-01

    An obstruction across the flow chamber creates a one dimensional convergence of a sheath fluid. A passageway in the construction directs flat cells near to the area of one dimensional convergence in the sheath fluid to provide proper orientation of flat cells at fast rates.

  2. US energy flow, 1991

    SciTech Connect (OSTI)

    Borg, I.Y.; Briggs, C.K.

    1992-06-01

    Trends in energy consumption and assessment of energy sources are discussed. Specific topics discussed include: energy flow charts; comparison of energy use with 1990 and earlier years; supply and demand of fossil fuels (oils, natural gas, coal); electrical supply and demand; and nuclear power.

  3. Flow cytometry apparatus

    DOE Patents [OSTI]

    Pinkel, D.

    1987-11-30

    An obstruction across the flow chamber creates a one-dimensional convergence of a sheath fluid. A passageway in the obstruction directs flat cells near to the area of one-dimensional convergence in the sheath fluid to provide proper orientation of flat cells at fast rates. 6 figs.

  4. ENERGY FLOWS CLIMATE CHANGE

    E-Print Network [OSTI]

    Schwartz, Stephen E.

    ENERGY FLOWS FORCINGS CLIMATE CHANGE A REALLY TOUGH PROBLEM Stephen E. Schwartz, BNL, 7-20-11 www average temperature 15°C or 59°F #12;ATMOSPHERIC RADIATION Power per area Energy per time per area Unit" temperature to radiative flux. #12;GLOBAL ENERGY BALANCE Global and annual average energy fluxes in watts per

  5. Analyzing and simulating the variability of solar irradiance and solar PV powerplants

    E-Print Network [OSTI]

    Lave, Matthew S.

    2012-01-01

    Models of diffuse solar radiation, Renew Energ, 33 (2008) [solar irradiance for analyzing areally- totalized PV systems, Sol Energsolar irradiance for analyzing areally- totalized PV systems, Sol Energ

  6. Single- and Two-Phase Diversion Cross-Flows Between Triangle Tight Lattice Rod Bundle Subchannels - Data on Flow Resistance and Interfacial Friction Coefficients for the Cross-Flow

    SciTech Connect (OSTI)

    Tatsuya Higuchi; Akimaro Kawahara; Michio Sadatomi; Hiroyuki Kudo [Kumamoto University, 39-1, Kurokami 2-chome, Kumamoto 860-8555 (Japan)

    2006-07-01

    Single- and two-phase diversion cross-flows arising from the pressure difference between tight lattice subchannels are our concern in this study. In order to obtain a correlation of the diversion cross-flow, we conducted adiabatic experiments using a vertical multiple-channel with two subchannels simplifying the triangle tight lattice rod bundle for air-water flows at room temperature and atmospheric pressure. In the experiments, data were obtained on the axial variations in the pressure difference between the subchannels, the ratio of flow rate in one subchannel to the whole channel, the void fraction in each subchannel for slug-churn and annular flows in two-phase flow case. These data were analyzed by use of a lateral momentum equation based on a two-fluid model to determine both the cross-flow resistance coefficient between liquid phase and channel wall and the gas-liquid interfacial friction coefficient. The resulting coefficients have been correlated in a way similar to that developed for square lattice subchannel case by Kano et al. (2002); the cross-flow resistance coefficient data can be well correlated with a ratio of the lateral velocity due to the cross-flow to the axial one irrespective of single- and two-phase flows; the interfacial friction coefficient data were well correlated with a Reynolds number, which is based on the relative velocity between gas and liquid cross-flows as the characteristic velocity. (authors)

  7. Does Market Learning Explain the Disappearance of the Accrual Anomaly? 

    E-Print Network [OSTI]

    Keskek, Sami

    2012-10-19

    earnings and cash flows versus accruals, (ii) incorrect weighting of cash flows and accruals by investors when predicting earnings, and (iii) association of earnings forecast errors with returns. All of these conditions are widely documented...

  8. Supercritical flow in rectangular expansions 

    E-Print Network [OSTI]

    Walsh, Peter.

    1968-01-01

    In recent years the occasions for design of channels to contain supercritical flow has increased considerably. Consequently there has developed a need for a method of predicting the physical characteristics of such flow based on theory...

  9. Radial flow pulse jet mixer

    DOE Patents [OSTI]

    VanOsdol, John G.

    2013-06-25

    The disclosure provides a pulse jet mixing vessel for mixing a plurality of solid particles. The pulse jet mixing vessel is comprised of a sludge basin, a flow surface surrounding the sludge basin, and a downcoming flow annulus between the flow surface and an inner shroud. The pulse jet mixing vessel is additionally comprised of an upper vessel pressurization volume in fluid communication with the downcoming flow annulus, and an inner shroud surge volume separated from the downcoming flow annulus by the inner shroud. When the solid particles are resting on the sludge basin and a fluid such as water is atop the particles and extending into the downcoming flow annulus and the inner shroud surge volume, mixing occurs by pressurization of the upper vessel pressurization volume, generating an inward radial flow over the flow surface and an upwash jet at the center of the sludge basin.

  10. HYDROLYZED WOOD SLURRY FLOW MODELING

    E-Print Network [OSTI]

    Wrathall, Jim

    2012-01-01

    LBL-10090 UC-61 HYDROLYZED WOOD SLURRY FLOW MODELING JimLBL-10090 HYDROLYZED WOOD SLURRY FLOW MODELING Jim Wrathallconversion of hydrolyzed wood slurry to fuel oil, Based on

  11. Structural power flow measurement

    SciTech Connect (OSTI)

    Falter, K.J.; Keltie, R.F.

    1988-12-01

    Previous investigations of structural power flow through beam-like structures resulted in some unexplained anomalies in the calculated data. In order to develop structural power flow measurement as a viable technique for machine tool design, the causes of these anomalies needed to be found. Once found, techniques for eliminating the errors could be developed. Error sources were found in the experimental apparatus itself as well as in the instrumentation. Although flexural waves are the carriers of power in the experimental apparatus, at some frequencies longitudinal waves were excited which were picked up by the accelerometers and altered power measurements. Errors were found in the phase and gain response of the sensors and amplifiers used for measurement. A transfer function correction technique was employed to compensate for these instrumentation errors.

  12. Ricci flow and quantum theory

    E-Print Network [OSTI]

    Robert Carroll

    2007-11-05

    We show some relations between Ricci flow and quantum theory via Fisher information and the quantum potential.

  13. Flow dynamics of the Moon

    E-Print Network [OSTI]

    Yu. N. Bratkov

    2010-04-03

    Flow analysis of big basins is given. Internal structure of flows is considered. Correlations between flows are calculated. For example, Mare Orientale is a moving basin. Orientale and Imbrium continental basins are introduced and are considered. Olbers ray crater is a result of precise interaction of the two basins. Flows of the Tycho type are studied. Two Antarctidae, an Indian Ocean, and an America are demonstrated.

  14. Identification of two-phase flow patterns by a single void fraction sensor

    SciTech Connect (OSTI)

    Wang, Y.W.; King, C.H.; Pei, B.S.

    1988-10-01

    A wide range of combinations of gas and liquid flow rates that form various flow patterns are investigated. By analyzing the signal spectra detected by a single sensor using light techniques, the criteria for identifying two-phase flow patterns are proposed. By applying these criteria with only one parameter, the high-frequency contribution fraction (HFCF), the reasonable identifying performance is 76% when churn flow is counted and 88% when churn flow is not counted. When ..cap alpha..-bar is added as an auxiliary to HFCF, the identifying performance can be increased to 83 and 96%, depending on whether churn flow is counted. Both parameters can be acquired by signals from a single void fraction sensor. The criteria are expected to apply to other void fraction measurable systems for identifying two-phase flow patterns.

  15. Analysis of anisotropic flow with Lee-Yang zeroes

    E-Print Network [OSTI]

    R. S. Bhalerao; N. Borghini; J. -Y. Ollitrault

    2003-10-03

    We present a new method to extract anisotropic flow in heavy ion collisions from the genuine correlation among a large number of particles. Anisotropic flow is obtained from the zeroes in the complex plane of a generating function of azimuthal correlations, in close analogy with the theory of phase transitions by Lee and Yang. Flow is first estimated globally, i.e., averaged over the phase space covered by the detector, and then differentially, as a function of transverse momentum and rapidity for identified particles. The corresponding estimates are less biased by nonflow correlations than with any other method. The practical implementation of the method is rather straightforward. Furthermore, it automatically takes into account most corrections due to azimuthal anisotropies in the detector acceptance. The main limitation of the method is statistical errors, which can be significantly larger than with the ``standard'' method of flow analysis if the flow and/or the event multiplicities are too small. In practice, we expect this to be the most accurate method to analyze directed and elliptic flow in fixed-target heavy-ion collisions between 100 MeV and 10 GeV per nucleon (at the Darmstadt SIS synchrotron and the Brookhaven Alternating Gradient Synchrotron), and elliptic flow at ultrarelativistic energies (at the Brookhaven Relativistic Heavy Ion Collider, and the forthcoming Large Hadron Collider at CERN).

  16. TEP process flow diagram

    SciTech Connect (OSTI)

    Wilms, R Scott; Carlson, Bryan; Coons, James; Kubic, William

    2008-01-01

    This presentation describes the development of the proposed Process Flow Diagram (PFD) for the Tokamak Exhaust Processing System (TEP) of ITER. A brief review of design efforts leading up to the PFD is followed by a description of the hydrogen-like, air-like, and waterlike processes. Two new design values are described; the mostcommon and most-demanding design values. The proposed PFD is shown to meet specifications under the most-common and mostdemanding design values.

  17. Modelling Neutral Particle Analyzer Measurements of High Energy Fusion Alpha-Particle Distributions in JET

    E-Print Network [OSTI]

    Modelling Neutral Particle Analyzer Measurements of High Energy Fusion Alpha-Particle Distributions in JET

  18. Random excitation forces in tube bundles subjected to two-phase cross-flow

    SciTech Connect (OSTI)

    Taylor, C.E.; Pettigrew, M.J. [AECL Research, Chalk River, Ontario (Canada). Chalk River Labs.; Currie, I.G. [Univ. of Toronto, Ontario (Canada). Dept. of Mechanical Engineering

    1996-08-01

    Data from two experimental programs have been analyzed to determine the characteristics of the random excitation forces associated with two-phase cross-flow in tube bundles. Large-scale air-water flow loops in France and Canada were used to generate the data. Tests were carried out on cantilevered, clamped-pinned, and clamped-clamped tubes in normal-square, parallel-triangular, and normal-triangular configurations. Either strain gages or force transducers were used to measure the vibration response of a centrally located tube as the tue array was subjected to a wide range of void fractions and flow rates. Power spectra were analyzed to determine the effect of parameters such as tube diameter, frequency, flow rate, void fraction, and flow regime on the random excitation forces. Normalized expressions for the excitation force power spectra were found to be flow-regime dependent. In the churn flow regime, flow rate and void fraction had very little effect on the magnitude of the excitation forces. In the bubble-plug flow regime, the excitation forces increased rapidly with flow rate and void fraction.

  19. Convective heat flow probe

    DOE Patents [OSTI]

    Dunn, J.C.; Hardee, H.C.; Striker, R.P.

    1984-01-09

    A convective heat flow probe device is provided which measures heat flow and fluid flow magnitude in the formation surrounding a borehole. The probe comprises an elongate housing adapted to be lowered down into the borehole; a plurality of heaters extending along the probe for heating the formation surrounding the borehole; a plurality of temperature sensors arranged around the periphery of the probe for measuring the temperature of the surrounding formation after heating thereof by the heater elements. The temperature sensors and heater elements are mounted in a plurality of separate heater pads which are supported by the housing and which are adapted to be radially expanded into firm engagement with the walls of the borehole. The heat supplied by the heater elements and the temperatures measured by the temperature sensors are monitored and used in providing the desired measurements. The outer peripheral surfaces of the heater pads are configured as segments of a cylinder and form a full cylinder when taken together. A plurality of temperature sensors are located on each pad so as to extend along the length and across the width thereof, with a heating element being located in each pad beneath the temperature sensors. An expansion mechanism driven by a clamping motor provides expansion and retraction of the heater pads and expandable packet-type seals are provided along the probe above and below the heater pads.

  20. Microgravity Flow Regime Transition Modeling 

    E-Print Network [OSTI]

    Shephard, Adam M.

    2010-07-14

    Flow regime transitions and the modeling thereof underlie the design of microgravity two-phase systems. Through the use of the zero-g laboratory, microgravity two-phase flows can be studied. Because microgravity two-phase flows exhibit essentially...

  1. Modeling shrouded stator cavity flows in axial-flow compressors

    SciTech Connect (OSTI)

    Wellborn, S.R.; Tolchinsky, I.; Okiishi, T.H.

    2000-01-01

    Experiments and computational analyses were completed to understand the nature of shrouded stator cavity flows. From this understanding, a one-dimensional model of the flow through shrouded stator cavities was developed. This model estimates the leakage mass flow, temperature rise, and angular momentum increase through the cavity, given geometry parameters and the flow conditions at the interface between the cavity and primary flow path. This cavity model consists of two components, one that estimates the flow characteristics through the labyrinth seals and the other that predicts the transfer of momentum due to windage. A description of the one-dimensional model is given. The incorporation and use of the one-dimensional model in a multistage compressor primary flow analysis tool is described. The combination of this model and the primary flow solver was used to reliably simulate the significant impact on performance of the increase of hub seal leakage in a twelve-stage axial-flow compressor. Observed higher temperatures of the hub region fluid, different stage matching, and lower overall efficiencies and core flow than expected could be correctly linked to increased hub seal clearance with this new technique. The importance of including these leakage flows in compressor simulations is shown.

  2. Complex groundwater flow systems as traveling agent models

    E-Print Network [OSTI]

    López-Corona, Oliver; Escolero, Oscar; González, Tomás; Morales-Casique, Eric

    2014-01-01

    Analyzing field data from pumping tests, we show that as with many other natural phenomena, groundwater flow exhibits a complex dynamics described by 1/f power spectrum. This result is theoretically studied within an agent perspective. Using a traveling agent model, we prove that this statistical behavior emerges when the medium is complex. Some heuristic reasoning is provided to justify both spatial and dynamic complexity, as the result of the superposition of an infinite number of stochastic processes. Even more, we show that this implies that non-Kolmogorovian probability is needed for its study, and provide a set of new partial differential equations for groundwater flow.

  3. The effect of fluid flow on coiled tubing reach

    SciTech Connect (OSTI)

    Bhalla, K.; Walton, I.C.

    1996-12-31

    A critical parameter to the success of many coiled tubing (CT) operations in highly deviated or horizontal wells is the depth penetration that can be attained before the CT buckles and locks up. Achieving a desired depth is always critical in CT operations and attaining an additional reach of a few hundred feet can be crucial. This paper addresses the effect of fluid flow in the CT and in the CT/wellbore annulus on the state of force and stress in the CT, and thereby predicts its effect on the reach attainable by the CT. The flow of fluid through the CT and annulus between the CT and borehole modifies the pressures and the effective force which governs the mechanical stability of the CT. The net force per unit length due to fluid flow in the coiled tubing and annulus between the coiled tubing casing/well is calculated in terms of the shear stress and its effect on the onset of buckling and lockup is determined. The model is then implemented in a full tubing forces calculation and the effect of flowing fluids and producing fluids on reach is analyzed. The new model is utilized in the design of commercial jobs. The exact analytic model shows that fluid flow inside the CT has zero impact on reach, that downward flow in the annulus has a favourable impact, and upward flow in the annulus reduces the maximum attainable reach. Using the full tubing forces model, a coiled tubing job can be designed taking into account the flow of a fluid with a specified rheology, density and flow rate. Thus the feasibility of attaining a given reach can be more accurately determined. Results are presented in the form of the surface weight for commercial wells and compared to field jobs.

  4. Flow Battery Technology

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room NewsInformation Current HABFES OctoberEvanServices »First ObservationFast(ER1)Flow Battery

  5. Spiral Laminar Flow: A revolution in understanding?

    E-Print Network [OSTI]

    Greenaway, Alan

    Blood Flow Spiral laminar flow #12;Spiral flow in the Aorta (MRI) Computational Fluid Dynamics 0 10 20Spiral Laminar Flow: A revolution in understanding? Reintroduction of natural blood flow Laminar Flow through Runoff (3months) Proximal Anastomosis SLF TM Graft Distal Anastomosis Post-op Angios

  6. Radial flow heat exchanger

    DOE Patents [OSTI]

    Valenzuela, Javier (Hanover, NH)

    2001-01-01

    A radial flow heat exchanger (20) having a plurality of first passages (24) for transporting a first fluid (25) and a plurality of second passages (26) for transporting a second fluid (27). The first and second passages are arranged in stacked, alternating relationship, are separated from one another by relatively thin plates (30) and (32), and surround a central axis (22). The thickness of the first and second passages are selected so that the first and second fluids, respectively, are transported with laminar flow through the passages. To enhance thermal energy transfer between first and second passages, the latter are arranged so each first passage is in thermal communication with an associated second passage along substantially its entire length, and vice versa with respect to the second passages. The heat exchangers may be stacked to achieve a modular heat exchange assembly (300). Certain heat exchangers in the assembly may be designed slightly differently than other heat exchangers to address changes in fluid properties during transport through the heat exchanger, so as to enhance overall thermal effectiveness of the assembly.

  7. Fluid flow monitoring device

    DOE Patents [OSTI]

    McKay, M.D.; Sweeney, C.E.; Spangler, B.S. Jr.

    1993-11-30

    A flow meter and temperature measuring device are described comprising a tube with a body centered therein for restricting flow and a sleeve at the upper end of the tube to carry several channels formed longitudinally in the sleeve to the appropriate axial location where they penetrate the tube to allow pressure measurements and temperature measurements with thermocouples. The high pressure measurement is made using a channel penetrating the tube away from the body and the low pressure measurement is made at a location at the widest part of the body. An end plug seals the end of the device and holes at its upper end allow fluid to pass from the interior of the tube into a plenum. The channels are made by cutting grooves in the sleeve, the grooves widened at the surface of the sleeve and then a strip of sleeve material is welded to the grooves closing the channels. Preferably the sleeve is packed with powdered graphite before cutting the grooves and welding the strips. 7 figures.

  8. Fluid flow monitoring device

    DOE Patents [OSTI]

    McKay, Mark D. (1426 Socastee Dr., North Augusta, SC 29841); Sweeney, Chad E. (3600 Westhampton Dr., Martinez, GA 30907-3036); Spangler, Jr., B. Samuel (2715 Margate Dr., Augusta, GA 30909)

    1993-01-01

    A flow meter and temperature measuring device comprising a tube with a body centered therein for restricting flow and a sleeve at the upper end of the tube to carry several channels formed longitudinally in the sleeve to the appropriate axial location where they penetrate the tube to allow pressure measurements and temperature measurements with thermocouples. The high pressure measurement is made using a channel penetrating the tube away from the body and the low pressure measurement is made at a location at the widest part of the body. An end plug seals the end of the device and holes at its upper end allow fluid to pass from the interior of the tube into a plenum. The channels are made by cutting grooves in the sleeve, the grooves widened at the surface of the sleeve and then a strip of sleeve material is welded to the grooves closing the channels. Preferably the sleeve is packed with powdered graphite before cutting the grooves and welding the strips.

  9. Vacuum ultraviolet mass-analyzed threshold ionization spectroscopy of methylcyclohexane in the supersonic jet

    E-Print Network [OSTI]

    Kim, Sang Kyu

    Vacuum ultraviolet mass-analyzed threshold ionization spectroscopy of methylcyclohexane t Vacuum ultraviolet (VUV) mass-analyzed threshold ionization (MATI) spectrum of supersonically cooled the vacuum ultraviolet (VUV) laser source is particu- larly useful for molecular systems with no stable

  10. C Copyright 2008 Agilent Technologies Agilent 4396B Network/Spectrum/Impedance Analyzer Function Reference

    E-Print Network [OSTI]

    Anlage, Steven

    C Copyright 2008 Agilent Technologies Agilent 4396B Network/Spectrum/Impedance Analyzer Function Technologies Agilent 4396B Network/Spectrum/Impedance Analyzer Function Reference Manual Change Agilent Part No

  11. Analyzing models for semantic role assignment using confusability Katrin Erk and Sebastian Pad

    E-Print Network [OSTI]

    Padó, Sebastian

    Analyzing models for semantic role assignment using confusability Katrin Erk and Sebastian Padó Computational Linguistics Saarland University Saarbrücken, Germany {erk,pado}@coli.uni-sb.de Abstract We analyze

  12. Active combustion flow modulation valve

    DOE Patents [OSTI]

    Hensel, John Peter; Black, Nathaniel; Thorton, Jimmy Dean; Vipperman, Jeffrey Stuart; Lambeth, David N; Clark, William W

    2013-09-24

    A flow modulation valve has a slidably translating hollow armature with at least one energizable coil wound around and fixably attached to the hollow armature. The energizable coil or coils are influenced by at least one permanent magnet surrounding the hollow armature and supported by an outer casing. Lorentz forces on the energizable coils which are translated to the hollow armature, increase or decrease the flow area to provide flow throttling action. The extent of hollow armature translation depends on the value of current supplied and the direction of translation depends on the direction of current flow. The compact nature of the flow modulation valve combined with the high forces afforded by the actuator design provide a flow modulation valve which is highly responsive to high-rate input control signals.

  13. Using the Air Void Analyzer for Real-Time Quality Control Adjustments

    E-Print Network [OSTI]

    May 2006 Using the Air Void Analyzer for Real-Time Quality Control Adjustments in the Field Tech Brief by Jim Grove, P.E. Bob Steffes Mark Anderson-Wilk Overview of the Air Void Analyzer The air void analyzer (AVA) with its independent isolation base can be used to accurately evaluate the air void system

  14. Agilent 4396B Network/Spectrum/Impedance Analyzer GPIB Programming Guide

    E-Print Network [OSTI]

    Anlage, Steven

    Agilent 4396B Network/Spectrum/Impedance Analyzer GPIB Programming Guide SERIAL NUMBERS This manual This manual provides an introduction to writing BASIC programs for the 4396B Network/Spectrum Analyzer for a programmer using an analyzer with Instrument BASIC as the system controller. iv #12;How to Use This Manual

  15. Agilent 4396B Network/Spectrum/Impedance Analyzer GPIB Command Reference

    E-Print Network [OSTI]

    Anlage, Steven

    Agilent 4396B Network/Spectrum/Impedance Analyzer GPIB Command Reference SERIAL NUMBERS This manual in NNNNN . iv #12;Documentation Map The following manuals are available for the analyzer. User's Guide measurement examples. After you receive your analyzer, begin with this manual. Task Reference (Agilent Part

  16. LISA: L-Band Interference Surveyor/Analyzer LISA co-observes with existing

    E-Print Network [OSTI]

    Ellingson, Steven W.

    spiral antenna · Spectrum analyzer for full- bandwidth monitoring of power spectral density · 14 MHz (8 Island, VA Spectrum analyzer, electronics rack & control console mounted in cabin RF distributionLISA: L-Band Interference Surveyor/Analyzer LISA co-observes with existing passive microwave

  17. The ESA family of spectrum analyzers have proven and guaranteed performance with the flexibility to

    E-Print Network [OSTI]

    Anlage, Steven

    The ESA family of spectrum analyzers have proven and guaranteed performance with the flexibility- mance on a mid-performance spectrum analyzer. Industry best typical performance · Warm up time: 5Hz) · -136 dBc/Hz (1 MHz) Agilent ESA Series Spectrum Analyzers Data Sheet a. Add 20LogN for frequencies > 6

  18. Application of a Differential Fuel-Cell Analyzer for Measuring Atmospheric Oxygen Variations

    E-Print Network [OSTI]

    Stephens, Britton B.

    Application of a Differential Fuel-Cell Analyzer for Measuring Atmospheric Oxygen Variations available differential fuel-cell analyzer has been adapted to make field-based ppm-level measurements of implementation of the fuel-cell analyzer make it particularly useful for a wide range of unattended field

  19. Drains Debubbler Transport Liq. Flow

    E-Print Network [OSTI]

    Weber, Rodney

    Drains Debubbler Transport Liq. Flow (LiF) aq. Anion Cation Waste Vacuum Pump LiF H2 O Pure H2 O 1 Denuders Cyclon 16 L/min 2.5 µm cut Sample Tubing ColourFlow, mL/minTubing green/green-1 green/green-2, and Liquid Flow Rates Are Possible Cation: metrosep 2100B-100x4.0mm Eluent: 0.250g/L Dipicolinic acid 1000 u

  20. Elliptic Flow at Large Viscosity

    E-Print Network [OSTI]

    Volker Koch

    2009-09-18

    In this contribution we present an alternative scenario for the large elliptic flow observed in relativistic heavy ion collisions. Motivated by recent results from Lattice QCD on flavor off-diagonal susceptibilities we argue that the matter right above $T_{c}$ can be described by single-particle dynamics in a repulsive single-particle potential, which in turn gives rise to elliptic flow. These ideas can be tested experimentally by measuring elliptic flow of heavy quarks, preferably via the measurement of $J/\\Psi$ elliptic flow.

  1. Module bay with directed flow

    SciTech Connect (OSTI)

    Torczynski, John R. (Albuquerque, NM)

    2001-02-27

    A module bay requires less cleanroom airflow. A shaped gas inlet passage can allow cleanroom air into the module bay with flow velocity preferentially directed toward contaminant rich portions of a processing module in the module bay. Preferential gas flow direction can more efficiently purge contaminants from appropriate portions of the module bay, allowing a reduced cleanroom air flow rate for contaminant removal. A shelf extending from an air inlet slit in one wall of a module bay can direct air flowing therethrough toward contaminant-rich portions of the module bay, such as a junction between a lid and base of a processing module.

  2. Kauai Groundwater Flow Model

    DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

    Nicole Lautze

    2015-01-01

    Groundwater flow model for Kauai. Data is from the following sources: Whittier, R. and A.I. El-Kadi. 2014. Human and Environmental Risk Ranking of Onsite Sewage Disposal Systems For the Hawaiian Islands of Kauai, Molokai, Maui, and Hawaii – Final. Prepared by the University of Hawaii, Dept. of Geology and Geophysics for the State of Hawaii Dept. of Health, Safe Drinking Water Branch. September 2014.; and Whittier, R.B., K. Rotzoll, S. Dhal, A.I. El-Kadi, C. Ray, G. Chen, and D. Chang. 2004. Hawaii Source Water Assessment Program Report – Volume IV – Island of Kauai Source Water Assessment Program Report. Prepared for the Hawaii Department of Health, Safe Drinking Water Branch. University of Hawaii, Water Resources Research Center. Updated 2015.

  3. The Dynamical Structure of Nonradiative Black Hole Accretion Flows

    E-Print Network [OSTI]

    John F. Hawley; Steven A. Balbus

    2002-03-19

    We analyze three-dimensional magnetohydrodynamic (MHD) simulations of a nonradiative accretion flow around a black hole using a pseudo-Newtonian potential. The flow originates from a torus initially centered at 100 gravitational (Schwarzschild) radii. Accretion is driven by turbulent stresses generated self-consistently by the magnetorotational instability. The resulting flow has three well-defined dynamical components: a hot, thick, rotationally-dominated Keplerian disk; a surrounding magnetized corona with vigorous circulation and outflow; and a magnetically-confined jet along the centrifugal funnel wall. Inside of 10 gravitational radii, the disk becomes very hot, more toroidal, and highly intermittent. These results contrast sharply with quasi-spherical, self-similar viscous models. There are no significant dynamical differences between simulations that include resistive heating and those that do not. We conclude by deducing some simple radiative properties of our solutions, and apply the results to the accretion-powered Galactic center source Sgr A*.

  4. Non--Atomic Components of Data Flow Diagrams: Stores, Persistent Flows,

    E-Print Network [OSTI]

    Symanzik, Jürgen

    Non--Atomic Components of Data Flow Diagrams: Stores, Persistent Flows, and Tests for Empty Flows J NON--ATOMIC COMPONENTS OF DATA FLOW DIAGRAMS: STORES, PERSISTENT FLOWS, AND TESTS FOR EMPTY FLOWS of these common features of traditional Data Flow Diagrams elevates the expressive power of FDFD's, or whether

  5. Journal ofEnhanced Heat Transfer, 18 (3): 177-190 (2011) THERMALLY-INDUCED OSCILLATORY FLOW AND

    E-Print Network [OSTI]

    Zhang, Yuwen

    2011-01-01

    AND HEAT TRANSFER IN AN OSCILLATING HEAT PIPE Wei Shao & Yuwen Zhang* Department ofMechanical and Aerospace - a building block ofan Oscillating Heat Pipe (OHP) - is modeled by analyzing evaporation and condensation flow and by empirical correlationsfor a turbulent liquid flow. KEY WORDS: oscillating heat pipe

  6. Quasi-normal acoustic oscillations in the transonic Bondi flow

    E-Print Network [OSTI]

    Eliana Chaverra; Olivier Sarbach

    2015-09-17

    In recent work, we analyzed the dynamics of spherical and nonspherical acoustic perturbations of the Michel flow, describing the steady radial accretion of a relativistic perfect fluid into a nonrotating black hole. We showed that such perturbations undergo quasi-normal oscillations and computed the corresponding complex frequencies as a function of the black hole mass M and the radius r_c of the sonic horizon. It was found that when r_c is much larger than the Schwarzschild radius r_H = 2GM/c^2 of the black hole, these frequencies scale like the surface gravity of the analogue black hole associated with the acoustic metric. In this work, we analyze the Newtonian limit of the Michel solution and its acoustic perturbations. In this limit, the flow outside the sonic horizon reduces to the transonic Bondi flow, and the acoustic metric reduces to the one introduced by Unruh in the context of experimental black hole evaporation. We show that for the transonic Bondi flow, Unruh's acoustic metric describes an analogue black hole and compute the associated quasi-normal frequencies. We prove that they do indeed scale like the surface gravity of the acoustic black hole, thus providing an explanation for our previous results in the relativistic setting.

  7. Illinois Turning Landfill Trash into Future Cash

    Broader source: Energy.gov [DOE]

    Will County, Illinois officials yesterday formally broke ground on a new $7 million project (that includes $1 million of Energy Efficiency Conservation Block Grant funds) to turn methane gas from the Prairie View Landfill into electricity in a partnership with Waste Management. Will County will receive revenue from the sale of the gas created from decomposing garbage which will be harnessed and converted to generate 4.8 megawatts of green electrical power and used to power up to 8,000 homes. The future revenue generated from the sale of the gas and the sale of the electricity could reach $1 million annually.

  8. Analyzing Losses: Transuranics into Waste and Fission Products into Recycled Fuel

    SciTech Connect (OSTI)

    Steven J. Piet; Nick R. Soelberg; Samuel E. Bays; Robert E. Cherry; Layne F. Pincock; Eric L. Shaber; Melissa C. Teague; Gregory M. Teske; Kurt G. Vedros; Candido Pereira; Denia Djokic

    2010-11-01

    All mass streams from separations and fuel fabrication are products that must meet criteria. Those headed for disposal must meet waste acceptance criteria (WAC) for the eventual disposal sites corresponding to their waste classification. Those headed for reuse must meet fuel or target impurity limits. A “loss” is any material that ends up where it is undesired. The various types of losses are linked in the sense that as the loss of transuranic (TRU) material into waste is reduced, often the loss or carryover of waste into TRU or uranium is increased. We have analyzed four separation options and two fuel fabrication options in a generic fuel cycle. The separation options are aqueous uranium extraction plus (UREX+1), electrochemical, Atomics International reduction oxidation separation (AIROX), and melt refining. UREX+1 and electrochemical are traditional, full separation techniques. AIROX and melt refining are taken as examples of limited separations, also known as minimum fuel treatment. The fuels are oxide and metal. To define a generic fuel cycle, a fuel recycling loop is fed from used light water reactor (LWR) uranium oxide fuel (UOX) at 51 MWth-day/kg-iHM burnup. The recycling loop uses a fast reactor with TRU conversion ratio (CR) of 0.50. Excess recovered uranium is put into storage. Only waste, not used fuel, is disposed – unless the impurities accumulate to a level so that it is impossible to make new fuel for the fast reactor. Impurities accumulate as dictated by separation removal and fission product generation. Our model approximates adjustment to fast reactor fuel stream blending of TRU and U products from incoming LWR UOX and recycling FR fuel to compensate for impurity accumulation by adjusting TRU:U ratios. Our mass flow model ignores postulated fuel impurity limits; we compare the calculated impurity values with those limits to identify elements of concern. AIROX and melt refining cannot be used to separate used LWR UOX-51 because they cannot separate U from TRU, it is then impossible to make X% TRU for fast reactors with UOX-51 used fuel with 1.3% TRU. AIROX and melt refining can serve in the recycle loop for about 3 recycles, at which point the accumulated impurities displace fertile uranium and the fuel can no longer be as critical as the original fast reactor fuel recipe. UREX+1 and electrochemical can serve in either capacity; key impurities appear to be lanthanides and several transition metals.

  9. Redox Flow Batteries, a Review

    SciTech Connect (OSTI)

    U. Tennessee Knoxville; U. Texas Austin; McGill U; Weber, Adam Z.; Mench, Matthew M.; Meyers, Jeremy P.; Ross, Philip N.; Gostick, Jeffrey T.; Liu, Qinghua

    2011-07-15

    Redox flow batteries are enjoying a renaissance due to their ability to store large amounts of electrical energy relatively cheaply and efficiently. In this review, we examine the components of redox flow batteries with a focus on understanding the underlying physical processes. The various transport and kinetic phenomena are discussed along with the most common redox couples.

  10. Mean Curvature Driven Ricci Flow

    E-Print Network [OSTI]

    Victor Tapia

    2009-03-11

    We obtain the evolution equations for the Riemann tensor, the Ricci tensor and the scalar curvature induced by the mean curvature flow. The evolution for the scalar curvature is similar to the Ricci flow, however, negative, rather than positive, curvature is preserved. Our results are valid in any dimension.

  11. FLOW CONDITIONING DESIGN IN TURBULENT

    E-Print Network [OSTI]

    California at San Diego, University of

    , or liquid sheets, create protective pocket to shield chamber side walls · Lattice of stationary sheets shield front/back walls while allowing beam propagation and target injection (High-Yield Lithium conditioner configurations #12;5 Flow Loop A Pump H 400 gal tank B Bypass line I Butterfly valve C Flow meter

  12. Network Flow Optimization under Uncertainty

    E-Print Network [OSTI]

    Tesfatsion, Leigh

    , production, generation, transportation, trade, storage injections and withdrawals of coal, gas?) xij is flow along arc (i, j), from node i to node j cij is cost per unit of flow along (i, j Network model in words Minimize the cost of satisfying demands for electric energy By: imports, exports

  13. Energy Flow: Flow Charts Illustrating United States Energy Resources and Usage, from Lawrence Livermore National Laboratory

    DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

    Decision makers have long recognized the importance of visualizing energy and material flows in a way that distinguishes between resources, transformations and services. Research priorities can be defined in terms of changes to the flows, and the consequences of policy or technology shifts can be traced both upstream and downstream. The usefulness of this top-down view is limited by the level of detail that can be conveyed in a single image. We use two techniques to balance information content with readability. First we employe visualization techniques, such as those embodied in the energy Sankey diagram below (Figure 1), to display both qualitative (relative line weight) and quantitative (listed values) information in a reader-friendly package. The second method is to augment static images with dynamic, scalable digital content containing multiple layers (e.g. energy, carbon and economic data). This transitions the audience from that of a passive reader to an active user of the information. When used in conjunction these approaches enable relatively large, interconnected processes to be described and analyzed efficiently. [copied from the description at http://en.openei.org/wiki/LLNL_Energy_Flow_Charts#cite_note-1

  14. Vertical flow chemical detection portal

    DOE Patents [OSTI]

    Linker, Kevin L. (Albuquerque, NM); Hannum, David W. (Albuquerque, NM); Conrad, Frank James (Russellville, SC)

    1999-01-01

    A portal apparatus for screening objects or persons for the presence of trace amounts of chemical substances such as illicit drugs or explosives. The apparatus has a test space, in which a person may stand, defined by two generally upright sides spanned by a horizontal transom. One or more fans in the transom generate a downward air flow (uni-directional) within the test space. The air flows downwardly from a high pressure upper zone, past the object or person to be screened. Air moving past the object dislodges from the surface thereof both volatile and nonvolatile particles of the target substance. The particles are entrained into the air flow which continues flowing downward to a lower zone of reduced pressure, where the particle-bearing air stream is directed out of the test space and toward preconcentrator and detection components. The sides of the portal are specially configured to partially contain and maintain the air flow.

  15. Vertical flow chemical detection portal

    DOE Patents [OSTI]

    Linker, K.L.; Hannum, D.W.; Conrad, F.J.

    1999-06-22

    A portal apparatus is described for screening objects or persons for the presence of trace amounts of chemical substances such as illicit drugs or explosives. The apparatus has a test space, in which a person may stand, defined by two generally upright sides spanned by a horizontal transom. One or more fans in the transom generate a downward air flow (uni-directional) within the test space. The air flows downwardly from a high pressure upper zone, past the object or person to be screened. Air moving past the object dislodges from the surface thereof both volatile and nonvolatile particles of the target substance. The particles are entrained into the air flow which continues flowing downward to a lower zone of reduced pressure, where the particle-bearing air stream is directed out of the test space and toward preconcentrator and detection components. The sides of the portal are specially configured to partially contain and maintain the air flow. 3 figs.

  16. Flow rule of dense granular flows down a rough incline

    E-Print Network [OSTI]

    Tamas Borzsonyi; Robert E. Ecke

    2007-07-09

    We present experimental findings on the flow rule for granular flows on a rough inclined plane using various materials including sand and glass beads of various sizes and four types of copper particles with different shapes. We characterize the materials by measuring $h_s$ (the thickness at which the flow subsides) as a function of the plane inclination $\\theta$ on various surfaces. Measuring the surface velocity $u$ of the flow as a function of flow thickness $h$, we find that for sand and glass beads the Pouliquen flow rule $u/\\sqrt{gh} \\sim \\beta h/h_s$ provides reasonable but not perfect collapse of the $u(h)$ curves measured for various $\\theta$ and mean particle diameter $d$. Improved collapse is obtained for sand and glass beads by using a recently proposed scaling of the form $u/\\sqrt{gh} =\\beta \\cdot h \\tan^2\\theta /h_s\\ \\tan^2\\theta_1$ where $\\theta_1$ is the angle at which the $h_s(\\theta)$ curves diverge. Measuring the slope $\\beta$ for ten different sizes of sand and glass beads, we find a systematic, strong increase of $\\beta$ with the divergence angle $\\theta_1$ of $h_s$. The copper materials with different shapes are not well described by either flow rule with $u \\sim h^{3/2}$.

  17. Recurrent flow analysis in spatiotemporally chaotic 2-dimensional Kolmogorov flow

    E-Print Network [OSTI]

    Dan Lucas; Rich Kerswell

    2015-04-01

    Motivated by recent success in the dynamical systems approach to transitional flow, we study the efficiency and effectiveness of extracting simple invariant sets (recurrent flows) directly from chaotic/turbulent flows and the potential of these sets for providing predictions of certain statistics of the flow. Two-dimensional Kolmogorov flow (the 2D Navier-Stokes equations with a sinusoidal body force) is studied both over a square [0, 2{\\pi}]2 torus and a rectangular torus extended in the forcing direction. In the former case, an order of magnitude more recurrent flows are found than previously (Chandler & Kerswell 2013) and shown to give improved predictions for the dissipation and energy pdfs of the chaos via periodic orbit theory. Over the extended torus at low forcing amplitudes, some extracted states mimick the statistics of the spatially-localised chaos present surprisingly well recalling the striking finding of Kawahara & Kida (2001) in low-Reynolds-number plane Couette flow. At higher forcing amplitudes, however, success is limited highlighting the increased dimensionality of the chaos and the need for larger data sets. Algorithmic developments to improve the extraction procedure are discussed.

  18. Combining water budgets and IFIM results for analyzing operation alternatives at peaking projects

    SciTech Connect (OSTI)

    Conners, M.E.; Homa, J. Jr. [Ichthyological Associates, Inc., Lansing, NY (United States); Carrington, G. [Northrup, Devine, and Tarbell, Inc., Vancouver, WA (United States)

    1995-12-31

    Licensing of hydropower projects often involves evaluating and comparing several different alternatives for project operation. Projects with peaking capabilities, in particular, are frequently required to compare peaking operation with substantially different alternatives, such as continuous run-of-the-river flows. Instream flow studies are used to assess the environmental impacts of hydropower operation by modeling the amount of aquatic habitat available at various flows. It can be difficult, however, to apply instream flow models downstream of peaking operations, or to present habitat model results in a way that clearly compares operation alternatives. This paper presents a two-stage analysis that was used in the successful negotiation of a licensing settlement for Niagara Mohawk Power Corporation`s Salmon River Project in upstate New York. A water budget model based on project configuration was used to compile flow-duration curves for the project under several alternative operating rules. A spreadsheet model was developed that combines the results of instream flow habitat models with flow-duration statistics. This approach provides a clear, quantitative comparison of the effect of alternative project operations on downstream aquatic habitat.

  19. Wavy flow cooling concept for turbine airfoils

    DOE Patents [OSTI]

    Liang, George (Palm City, FL)

    2010-08-31

    An airfoil including an outer wall and a cooling cavity formed therein. The cooling cavity includes a leading edge flow channel located adjacent a leading edge of the airfoil and a trailing edge flow channel located adjacent a trailing edge of the airfoil. Each of the leading edge and trailing edge flow channels define respective first and second flow axes located between pressure and suction sides of the airfoil. A plurality of rib members are located within each of the flow channels, spaced along the flow axes, and alternately extending from opposing sides of the flow channels to define undulating flow paths through the flow channels.

  20. US energy flow - 1984

    SciTech Connect (OSTI)

    Briggs, C.K.; Borg, I.Y.

    1985-07-01

    The 1984 energy flow diagram for the USA has been constructed using Department of Energy data. It is a convenient graphical device to show supply and demand as well as the size of end-use sectors. A 4% increase in overall energy consumption represented a reversal in a downward trend started in 1979. All indicators pointed to more healthy industrial and farm economies in 1984 than in the previous two years, which accounted for some part of the increase in energy use. While domestic crude oil production remained stable, oil imports rose eight percent also reversing a long-standing trend. Seventy-two million barrels of oil primarily from Mexico and the United Kingdom were added to the Strategic Petroleum Reserve bringing the total oil stored at year end to 451 million barrels. At the same time 49 million barrels of oil were produced from the government-owned Naval Petroleum Reserve No. 1 (Elk Hills, CA). Energy use in all end-use sectors grew in 1984 which is in keeping with increases in use of all types of fossil fuels as well as electricity. Increase in electrical power demand continued to exceed forecasts, and during 1984 contracts for imports to the northeast US were negotiated with Canada. Nuclear power contributed 15% of total power generated in the US. At year end there were 86 licensed reactors and 44 in either start-up or construction stages. Six were canceled or abandoned during construction during the year. 11 refs., 4 figs., 3 tabs.

  1. HYPERBOLIC SYSTEMS OF THREE-PHASE FLOW

    E-Print Network [OSTI]

    Patzek, Tadeusz W.

    HYPERBOLIC SYSTEMS OF THREE-PHASE FLOW IN POROUS MEDIA Gordon Conference on Flow and Transport SINTEF IKT, Dept. Applied Mathematics, Norway #12;2 WHY THREE-PHASE FLOW + Three-phase flow is the rule: ! Exceptionally accurate, fast numerical solutions to realistic three-phase flows in porous media + Approach

  2. Mathematical Model Analysis for Hg Flow

    E-Print Network [OSTI]

    McDonald, Kirk

    Mathematical Model Analysis for Hg Flow Yan Zhan SUNYSB April 20th, 2010 #12;Outline · Introduction ­ Mechanism of Jet Breakup & Atomization ­ Dynamic Problems in Hg Target Flow · Mathematical Model for Hg Flow ­ Parameters ­ Incompressible Flow (No MHD) ­ Incompressible Flow (MHD) ­ Proton Beam Energy Conversion

  3. Bent crystal analyzer without grooves for inelastic scattering -- first experimental results

    SciTech Connect (OSTI)

    Kushnir, V.I.; Macrander, A.T.

    1996-11-01

    A new design of a bent crystal analyzer for high energy resolution inelastic X-ray scattering has been recently proposed. It has been theoretically predicted that an analyzer with reflecting planes at a certain angle with respect to a crystal surface, bent with two different radii of curvature, will have the same energy resolution as a perfect crystal. The first experimental measurement obtained at the Advanced Photon Source of a bandwidth of such an analyzer is presented. The overall energy resolution of the analyzer and monochromator observed with a narrow beam is equal to 16.4 meV (FWHM) at 13.84 KeV.

  4. Supplemental Material: Analyzing angular distributions for two-step dissociation mechanisms in velocity map imaging

    E-Print Network [OSTI]

    Butler, Laurie J.

    Supplemental Material: Analyzing angular distributions for two-step dissociation mechanisms in velocity map imaging D. B. Straus,* L. M. Butler, B. W. Alligood,* and L. J

  5. Stochastic Roadmap Simulation: An efficient Representation and Algorithm for Analyzing Molecular Motion

    E-Print Network [OSTI]

    Brutlag, Doug

    Stochastic Roadmap Simulation: An efficient Representation and Algorithm for Analyzing Molecular. This paper introduces Stochastic Roadmap Simulation (SRS) as a new computational approach for explor- ing

  6. Analyzing Natural Gas Based Hydrogen Infrastructure - Optimizing Transitions from Distributed to Centralized H2 Production

    E-Print Network [OSTI]

    Yang, Christopher; Ogden, Joan M

    2005-01-01

    17. Parker, N. , Using Natural Gas Transmission PipelineANALYZING NATURAL GAS BASED HYDROGEN INFRASTRUCTURE –distribution infrastructure (natural gas and electricity)

  7. Turbine blade tip flow discouragers

    DOE Patents [OSTI]

    Bunker, Ronald Scott (Niskayuna, NY)

    2000-01-01

    A turbine assembly comprises a plurality of rotating blade portions in a spaced relation with a stationery shroud. The rotating blade portions comprise a root section, a tip portion and an airfoil. The tip portion has a pressure side wall and a suction side wall. A number of flow discouragers are disposed on the blade tip portion. In one embodiment, the flow discouragers extend circumferentially from the pressure side wall to the suction side wall so as to be aligned generally parallel to the direction of rotation. In an alternative embodiment, the flow discouragers extend circumferentially from the pressure side wall to the suction side wall so as to be aligned at an angle in the range between about 0.degree. to about 60.degree. with respect to a reference axis aligned generally parallel to the direction of rotation. The flow discouragers increase the flow resistance and thus reduce the flow of hot gas flow leakage for a given pressure differential across the blade tip portion so as to improve overall turbine efficiency.

  8. The transition from two phase bubble flow to slug flow

    E-Print Network [OSTI]

    Radovcich, Nick A.

    1962-01-01

    The process of transition from bubble to slug flow in a vertical pipe has been studied analytically and experimentally. An equation is presented which gives the agglomeration time as a function of void fraction, channel ...

  9. Detecting and analyzing coherent structures in two-dimensional dynamical systems

    E-Print Network [OSTI]

    Allshouse, Michael R

    2013-01-01

    The identification of coherent structures enhances the understanding of transport by complex flows such as those found at the ocean surface. The rapidly developing approach of Lagrangian Coherent Structures (LCSs) is based ...

  10. Analyzing Drivers' Responses to Portable Changeable Message Signs in Rural Highway Work Zones

    E-Print Network [OSTI]

    Li, Yue

    2011-04-21

    The number of work zones has been increasing in the highway system of the United States because of rising needs in highway construction and maintenance. Highway work zones disrupt normal traffic flow and create safety ...

  11. BPS dyons and Hesse flow

    E-Print Network [OSTI]

    Dieter Van den Bleeken

    2012-02-03

    We revisit BPS solutions to classical N=2 low energy effective gauge theories. It is shown that the BPS equations can be solved in full generality by the introduction of a Hesse potential, a symplectic analog of the holomorphic prepotential. We explain how for non-spherically symmetric, non-mutually local solutions, the notion of attractor flow generalizes to gradient flow with respect to the Hesse potential. Furthermore we show that in general there is a non-trivial magnetic complement to this flow equation that is sourced by the momentum current in the solution.

  12. Transient eddy current flow metering

    E-Print Network [OSTI]

    Forbriger, Jan

    2015-01-01

    Measuring local velocities or entire flow rates in liquid metals or semiconductor melts is a notorious problem in many industrial applications, including metal casting and silicon crystal growth. We present a new variant of an old technique which relies on the continuous tracking of a flow-advected transient eddy current that is induced by a pulsed external magnetic field. This calibration-free method is validated by applying it to the velocity of a spinning disk made of aluminum. First tests at a rig with a flow of liquid GaInSn are also presented.

  13. The Ricci Flow on Riemannian Groupoids

    E-Print Network [OSTI]

    Hilaire, Christian

    2015-01-01

    3.2 Application: Immortal Ricci flow solutions on closedand Dan Knopf. The Ricci flow: an introduction. Vol. 110.and Lei Ni. Hamilton’s Ricci flow. Vol. 77. Graduate Studies

  14. Insertable fluid flow passage bridgepiece and method

    DOE Patents [OSTI]

    Jones, Daniel O. (Glenville, NV)

    2000-01-01

    A fluid flow passage bridgepiece for insertion into an open-face fluid flow channel of a fluid flow plate is provided. The bridgepiece provides a sealed passage from a columnar fluid flow manifold to the flow channel, thereby preventing undesirable leakage into and out of the columnar fluid flow manifold. When deployed in the various fluid flow plates that are used in a Proton Exchange Membrane (PEM) fuel cell, bridgepieces of this invention prevent mixing of reactant gases, leakage of coolant or humidification water, and occlusion of the fluid flow channel by gasket material. The invention also provides a fluid flow plate assembly including an insertable bridgepiece, a fluid flow plate adapted for use with an insertable bridgepiece, and a method of manufacturing a fluid flow plate with an insertable fluid flow passage bridgepiece.

  15. User's manual for ANALYZE: a variable-rate, multiple-well, least-squares matching routine for well-test analysis

    SciTech Connect (OSTI)

    McEdwards, D.G.; Benson, S.M.

    1981-07-01

    ANALYZE is a history-matching program designed for pressure-transient analysis of well tests in single-phase, fluid-saturated reservoirs. Both interference tests and production tests can be analyzed to yield reservoir transmissivity (kh/..mu..), storativity (phi ch), and hydrologic boundaries. An analytic solution is used to calculate the pressure drawdown/buildup in an idealized reservoir system. A schematic of the basic reservoir/well model assumed by the computational algorithm is shown. The reservoir is assumed to be an isothermal, isotropic, homogeneous, porous medium of constant thickness and infinite areal extent. The production well is modeled as a line source which fully penetrates the reservoir. The flow into the well is radial and uniformly distributed over the height of the well (gravity effects neglected).

  16. Flow Study in Relativistic Nuclear Collisions by Fourier Expansion of Azimuthal Particle Distributions

    E-Print Network [OSTI]

    S. Voloshin; Y. Zhang

    1994-07-12

    We propose a new method to study transverse flow effects in relativistic nuclear collisions by Fourier analysis of the azimuthal distribution on an event-by-event basis in relatively narrow rapidity windows. The distributions of Fourier coefficients provide direct information on the magnitude and type of flow. Directivity and two dimensional sphericity tensor, widely used to analyze flow, emerge naturally in our approach, since they correspond to the distributions of the first and second harmonic coefficients, respectively. The role of finite particle fluctuations and particle correlations is discussed.

  17. Anisotropic flow fluctuations in hydro-inspired freeze-out model for relativistic heavy ion collisions

    E-Print Network [OSTI]

    L. V. Bravina; E. S. Fotina; V. L. Korotkikh; I. P. Lokhtin; L. V. Malinina; E. N. Nazarova; S. V. Petrushanko; A. M. Snigirev; E. E. Zabrodin

    2015-09-09

    The possible mechanisms contributing to anisotropic flow fluctuations in relativistic heavy ion collisions are discussed. The LHC data on event-by-event harmonic flow coefficients measured in PbPb collisions at center-of-mass energy 2.76 TeV per nucleon pair are analyzed and interpreted within the HYDJET++ model. To compare the model results with the experimental data the unfolding procedure is employed. It is shown that HYDJET++ correctly reproduces dynamical fluctuations of elliptic and triangular flows and related to it eccentricity fluctuations of the initial state.

  18. Anisotropic flow fluctuations in hydro-inspired freeze-out model for relativistic heavy ion collisions

    E-Print Network [OSTI]

    Bravina, L V; Korotkikh, V L; Lokhtin, I P; Malinina, L V; Nazarova, E N; Petrushanko, S V; Snigirev, A M; Zabrodin, E E

    2015-01-01

    The possible mechanisms contributing to anisotropic flow fluctuations in relativistic heavy ion collisions are discussed. The LHC data on event-by-event harmonic flow coefficients measured in PbPb collisions at center-of-mass energy 2.76 TeV per nucleon pair are analyzed and interpreted within the HYDJET++ model. To compare the model results with the experimental data the unfolding procedure is employed. It is shown that HYDJET++ correctly reproduces dynamical fluctuations of elliptic and triangular flows and related to it eccentricity fluctuations of the initial state.

  19. Evaluation and Comparison of Clustering Algorithms in Analyzing ES Cell Gene Expression Data

    E-Print Network [OSTI]

    1 Evaluation and Comparison of Clustering Algorithms in Analyzing ES Cell Gene Expression Data #12;2 Abstract Many clustering algorithms have been used to analyze microarray gene expression data of clustering algorithms, including hierarchical clustering, k-means, PAM and SOM. The indices were homogeneity

  20. On Analyzing Evolutionary Changes of Web Services Martin Treiber, Hong-Linh Truong, Schahram Dustdar

    E-Print Network [OSTI]

    Dustdar, Schahram

    On Analyzing Evolutionary Changes of Web Services Martin Treiber, Hong-Linh Truong, Schahram of Technology {treiber, truong, dustdar}@infosys.tuwien.ac.at Abstract. Web services evolve over their life time and change their behavior. In our work, we analyze Web service related changes and investigate interdependen

  1. Fast Hash-Based Algorithms for Analyzing Large Collections of Evolutionary Trees 

    E-Print Network [OSTI]

    Sul, Seung Jin

    2011-02-22

    , current approaches are not designed to analyze very large tree collections. In this dissertation, we present two fast algorithms— HashCS and HashRF —for analyzing large collections of evolutionary trees based on a novel hash table data structure, which...

  2. Atomic force microscope with combined FTIR-Raman spectroscopy having a micro thermal analyzer

    DOE Patents [OSTI]

    Fink, Samuel D. (Aiken, SC); Fondeur, Fernando F. (North Augusta, SC)

    2011-10-18

    An atomic force microscope is provided that includes a micro thermal analyzer with a tip. The micro thermal analyzer is configured for obtaining topographical data from a sample. A raman spectrometer is included and is configured for use in obtaining chemical data from the sample.

  3. C Copyright 2007 Agilent Technologies Agilent 4396B Network/Spectrum/Impedance Analyzer Task Reference

    E-Print Network [OSTI]

    Anlage, Steven

    C Copyright 2007 Agilent Technologies Agilent 4396B Network/Spectrum/Impedance Analyzer Task . . . . . . . . . . . . 2-3 To Display Dual Channels . . . . . . . . . . . . . 2-3 To Select the Spectrum Analyzer Mode. n Foreign substance or liquid has fallen into the instrument. #12;#12;Agilent 4396B Network/Spectrum

  4. Simulation-guided optimization of small-angle analyzer geometry in the neutron backscattering spectrometer SPHERES

    SciTech Connect (OSTI)

    Wuttke, Joachim; Zamponi, Michaela [Forschungszentrum Jülich GmbH, Jülich Centre for Neutron Science at MLZ, Lichtenbergstraße 1, 85747 Garching (Germany)] [Forschungszentrum Jülich GmbH, Jülich Centre for Neutron Science at MLZ, Lichtenbergstraße 1, 85747 Garching (Germany)

    2013-11-15

    The resolution of neutron backscattering spectrometers deteriorates at small scattering angles where analyzers deviate from exact backscattering. By reducing the azimuth angle range of the analyzers, the resolution can be improved with little loss of peak intensity. Measurements at the spectrometer SPHERES are in excellent agreement with simulations, which proves the dominance of geometric effects.

  5. Debugging Ubiquitous Computing Applications With the Interaction Analyzer Nam Nguyen, Leonard Kleinrock, and Peter Reiher

    E-Print Network [OSTI]

    California at Los Angeles, University of

    Debugging Ubiquitous Computing Applications With the Interaction Analyzer Nam Nguyen, Leonard@cs.ucla.edu, reiher@cs.ucla.edu Abstract--Ubiquitous computing applications are frequently long-running and highly for ubiquitous computing applications that addresses this problem. The Interaction Analyzer uses protocol

  6. Bionimbus: a cloud for managing, analyzing and sharing large genomics datasets

    E-Print Network [OSTI]

    Grossman, Robert

    Bionimbus: a cloud for managing, analyzing and sharing large genomics datasets Allison P Heath,1 petabyte-scale cloud- based computing platforms containing these data, along with tools and resources to analyze it. Methods Bionimbus is an open source cloud- computing platform that is based primarily upon

  7. Acoustic concentration of particles in fluid flow

    DOE Patents [OSTI]

    Ward, Michael D. (Los Alamos, NM); Kaduchak, Gregory (Los Alamos, NM)

    2010-11-23

    An apparatus for acoustic concentration of particles in a fluid flow includes a substantially acoustically transparent membrane and a vibration generator that define a fluid flow path therebetween. The fluid flow path is in fluid communication with a fluid source and a fluid outlet and the vibration generator is disposed adjacent the fluid flow path and is capable of producing an acoustic field in the fluid flow path. The acoustic field produces at least one pressure minima in the fluid flow path at a predetermined location within the fluid flow path and forces predetermined particles in the fluid flow path to the at least one pressure minima.

  8. Integrated Nozzle Flow, Spray, Combustion, & Emission Modeling...

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

    Nozzle Flow, Spray, Combustion, & Emission Modeling using KH-ACT Primary Breakup Model & Detailed Chemistry Integrated Nozzle Flow, Spray, Combustion, & Emission Modeling using...

  9. CHARACTERIZING SUBDAILY FLOW REGIMES: IMPLICATIONS OF HYDROLOGIC...

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

    in flow, dramatic decreases in flow can occur because of withdrawals for uses such as hydraulic fracturing (Entrekin et al., 2011). These decreases may only be captured by...

  10. MODERN DEVELOPMENTS IN MULTIPHASE FLOW & HEAT TRANSFER

    E-Print Network [OSTI]

    Lahey, Richard T.

    MODERN DEVELOPMENTS IN MULTIPHASE FLOW & HEAT TRANSFER "ENGINEERING APPLICATIONS OF FRACTAL and multiphase flow & heat transfer will be stressed. This paper will begin by reviewing some important concepts

  11. 2007 Estimated International Energy Flows

    SciTech Connect (OSTI)

    Smith, C A; Belles, R D; Simon, A J

    2011-03-10

    An energy flow chart or 'atlas' for 136 countries has been constructed from data maintained by the International Energy Agency (IEA) and estimates of energy use patterns for the year 2007. Approximately 490 exajoules (460 quadrillion BTU) of primary energy are used in aggregate by these countries each year. While the basic structure of the energy system is consistent from country to country, patterns of resource use and consumption vary. Energy can be visualized as it flows from resources (i.e. coal, petroleum, natural gas) through transformations such as electricity generation to end uses (i.e. residential, commercial, industrial, transportation). These flow patterns are visualized in this atlas of 136 country-level energy flow charts.

  12. Mechanical design of flow batteries

    E-Print Network [OSTI]

    Hopkins, Brandon J. (Brandon James)

    2013-01-01

    The purpose of this research is to investigate the design of low-cost, high-efficiency flow batteries. Researchers are searching for next-generation battery materials, and this thesis presents a systems analysis encompassing ...

  13. Miniaturized flow injection analysis system

    DOE Patents [OSTI]

    Folta, J.A.

    1997-07-01

    A chemical analysis technique known as flow injection analysis is described, wherein small quantities of chemical reagents and sample are intermixed and reacted within a capillary flow system and the reaction products are detected optically, electrochemically, or by other means. A highly miniaturized version of a flow injection analysis system has been fabricated utilizing microfabrication techniques common to the microelectronics industry. The microflow system uses flow capillaries formed by etching microchannels in a silicon or glass wafer followed by bonding to another wafer, commercially available microvalves bonded directly to the microflow channels, and an optical absorption detector cell formed near the capillary outlet, with light being both delivered and collected with fiber optics. The microflow system is designed mainly for analysis of liquids and currently measures 38{times}25{times}3 mm, but can be designed for gas analysis and be substantially smaller in construction. 9 figs.

  14. Miniaturized flow injection analysis system

    DOE Patents [OSTI]

    Folta, James A. (Livermore, CA)

    1997-01-01

    A chemical analysis technique known as flow injection analysis, wherein small quantities of chemical reagents and sample are intermixed and reacted within a capillary flow system and the reaction products are detected optically, electrochemically, or by other means. A highly miniaturized version of a flow injection analysis system has been fabricated utilizing microfabrication techniques common to the microelectronics industry. The microflow system uses flow capillaries formed by etching microchannels in a silicon or glass wafer followed by bonding to another wafer, commercially available microvalves bonded directly to the microflow channels, and an optical absorption detector cell formed near the capillary outlet, with light being both delivered and collected with fiber optics. The microflow system is designed mainly for analysis of liquids and currently measures 38.times.25.times.3 mm, but can be designed for gas analysis and be substantially smaller in construction.

  15. Longitudinal dispersion in vegetated flow

    E-Print Network [OSTI]

    Murphy, Enda

    2006-01-01

    Vegetation is ubiquitous in rivers, estuaries and wetlands, strongly influencing both water conveyance and mass transport. The plant canopy affects both mean and turbulent flow structure, and thus both advection and ...

  16. Fluid Flow Modeling in Fractures

    E-Print Network [OSTI]

    Sarkar, Sudipta

    2004-01-01

    In this paper we study fluid flow in fractures using numerical simulation and address the challenging issue of hydraulic property characterization in fractures. The methodology is based on Computational Fluid Dynamics, ...

  17. Conservative regularization of compressible flow

    E-Print Network [OSTI]

    Krishnaswami, Govind S; Thyagaraja, Anantanarayanan

    2015-01-01

    Ideal Eulerian flow may develop singularities in vorticity w. Navier-Stokes viscosity provides a dissipative regularization. We find a local, conservative regularization - lambda^2 w times curl(w) of compressible flow and compressible MHD: a three dimensional analogue of the KdV regularization of the one dimensional kinematic wave equation. The regulator lambda is a field subject to the constitutive relation lambda^2 rho = constant. Lambda is like a position-dependent mean-free path. Our regularization preserves Galilean, parity and time-reversal symmetries. We identify locally conserved energy, helicity, linear and angular momenta and boundary conditions ensuring their global conservation. Enstrophy is shown to remain bounded. A swirl velocity field is identified, which transports w/rho and B/rho generalizing the Kelvin-Helmholtz and Alfven theorems. A Hamiltonian and Poisson bracket formulation is given. The regularized equations are used to model a rotating vortex, channel flow, plane flow, a plane vortex ...

  18. Flow assurance and multiphase pumping 

    E-Print Network [OSTI]

    Nikhar, Hemant G.

    2009-05-15

    ????????????????????????????????????????. xvii NOMENCLATURE???????????????????????????????????????. xviii 1. INTRODUCTION??????????????????????????????????????? 1 2. LITERATURE REVIEW???????????????????????????????????.. 5 Deepwater Oilfields???????????????????????????????????.. 7 Flow...????????????????????????????????.. 71 Limited Energy Reservoirs and Deep Waters???????????????????? 71 5. SOLIDS FORMATION AND DEPOSITION??????????????????????????. 72 Gas Hydrates??????????????????????????????????????? 72 Field Problems??????????????????????????????????????. 74...

  19. Subcooled flow boiling of fluorocarbons

    E-Print Network [OSTI]

    Murphy, Richard Walter

    1971-01-01

    A study was conducted of heat transfer and hydrodynamic behavior for subcooled flow boiling of Freon-113, one of a group of fluorocarbons suitable for use in cooling of high-power-density electronic components. Problems ...

  20. Multiscale modeling in granular flow

    E-Print Network [OSTI]

    Rycroft, Christopher Harley

    2007-01-01

    Granular materials are common in everyday experience, but have long-resisted a complete theoretical description. Here, we consider the regime of slow, dense granular flow, for which there is no general model, representing ...

  1. Elliptic flow from color strings

    E-Print Network [OSTI]

    M. A. Braun; C. Pajares

    2010-08-02

    It is shown that the elliptic flow can be successfully described in the color string picture with fusion and percolation provided anisotropy of particle emission from the fused string is taken into account. Two possible sources of this anisotropy are considered, propagation of the string in the transverse plane and quenching of produced particles in the strong color field of the string. Calculations show that the second source gives an overwhelming contribution to the flow at accessible energies.

  2. DETECTION OF EQUATORWARD MERIDIONAL FLOW AND EVIDENCE OF DOUBLE-CELL MERIDIONAL CIRCULATION INSIDE THE SUN

    SciTech Connect (OSTI)

    Zhao Junwei; Bogart, R. S.; Kosovichev, A. G.; Hartlep, Thomas; Duvall, T. L. Jr.

    2013-09-10

    Meridional flow in the solar interior plays an important role in redistributing angular momentum and transporting magnetic flux inside the Sun. Although it has long been recognized that the meridional flow is predominantly poleward at the Sun's surface and in its shallow interior, the location of the equatorward return flow and the meridional flow profile in the deeper interior remain unclear. Using the first 2 yr of continuous helioseismology observations from the Solar Dynamics Observatory/Helioseismic Magnetic Imager, we analyze travel times of acoustic waves that propagate through different depths of the solar interior carrying information about the solar interior dynamics. After removing a systematic center-to-limb effect in the helioseismic measurements and performing inversions for flow speed, we find that the poleward meridional flow of a speed of 15 m s{sup -1} extends in depth from the photosphere to about 0.91 R{sub Sun }. An equatorward flow of a speed of 10 m s{sup -1} is found between 0.82 and 0.91 R{sub Sun} in the middle of the convection zone. Our analysis also shows evidence of that the meridional flow turns poleward again below 0.82 R{sub Sun }, indicating an existence of a second meridional circulation cell below the shallower one. This double-cell meridional circulation profile with an equatorward flow shallower than previously thought suggests a rethinking of how magnetic field is generated and redistributed inside the Sun.

  3. Material and Energy Flows Associated with Select Metals in GREET 2. Molybdenum, Platinum, Zinc, Nickel, Silicon

    SciTech Connect (OSTI)

    Benavides, Pahola T.; Dai, Qiang; Sullivan, John L.; Kelly, Jarod C.; Dunn, Jennifer B.

    2015-09-01

    In this work, we analyzed the material and energy consumption from mining to production of molybdenum, platinum, zinc, and nickel. We also analyzed the production of solar- and semiconductor-grade silicon. We described new additions to and expansions of the data in GREET 2. In some cases, we used operating permits and sustainability reports to estimate the material and energy flows for molybdenum, platinum, and nickel, while for zinc and silicon we relied on information provided in the literature.

  4. Flow instabilities of magnetic flux tubes II. Longitudinal flow

    E-Print Network [OSTI]

    V. Holzwarth; D. Schmitt; M. Schuessler

    2007-04-27

    Flow-induced instabilities are relevant for the storage and dynamics of magnetic fields in stellar convection zones and possibly also in other astrophysical contexts. We continue the study started in the first paper of this series by considering the stability properties of longitudinal flows along magnetic flux tubes. A linear stability analysis was carried out to determine criteria for the onset of instability in the framework of the approximation of thin magnetic flux tubes. In the non-dissipative case, we find Kelvin-Helmholtz instability for flow velocities exceeding a critical speed that depends on the Alfv{\\'e}n speed and on the ratio of the internal and external densities. Inclusion of a friction term proportional to the relative transverse velocity leads to a friction-driven instability connected with backward (or negative energy) waves. We discuss the physical nature of this instability. In the case of a stratified external medium, the Kelvin-Helmholtz instability and the friction-driven instability can set in for flow speeds significantly lower than the Alfv{\\'e}n speed. Dissipative effects can excite flow-driven instability below the thresholds for the Kelvin-Helmholtz and the undulatory (Parker-type) instabilities. This may be important for magnetic flux storage in stellar convection zones and for the stability of astrophysical jets.

  5. Oscillating HBT radii and the time evolution of the source - sqrt(s_NN) = 200 GeV Au+Au data analyzed with azimuthally sensitive Buda-Lund hydro model

    E-Print Network [OSTI]

    A. Ster; M. Csanad; T. Csorgo; B. Lorstad; B. Tomasik

    2011-04-06

    Identified particle spectra of pions, kaons and (anti)protons, and elliptic flow and azimuthal dependence of Bose-Einstein or HBT correlations of identified pions in sqrt(s_NN) = 200 GeV Au+Au collisions is analyzed simultaneously using an ellipsoidally symmetric generalization of the Buda-Lund hydrodynamical model. The transverse flow is found to be faster in the reaction plane than out of plane, which results in a reaction zone that gets slightly more elongated in-plane than out of plane.

  6. Oscillating HBT radii and the time evolution of the source - sqrt(s_NN) = 200 GeV Au+Au data analyzed with azimuthally sensitive Buda-Lund hydro model

    E-Print Network [OSTI]

    Ster, A; Csorgo, T; Lorstad, B; Tomasik, B

    2011-01-01

    Identified particle spectra of pions, kaons and (anti)protons, and elliptic flow and azimuthal dependence of Bose-Einstein or HBT correlations of identified pions in sqrt(s_NN) = 200 GeV Au+Au collisions is analyzed simultaneously using an ellipsoidally symmetric generalization of the Buda-Lund hydrodynamical model. The transverse flow is found to be faster in the reaction plane than out of plane, which results in a reaction zone that gets slightly more elongated in-plane than out of plane.

  7. A numerical study of geometry dependent errors in velocity, temperature, and density measurements from single grid planar retarding potential analyzers

    SciTech Connect (OSTI)

    Davidson, R. L.; Earle, G. D.; Heelis, R. A.; Klenzing, J. H.

    2010-08-15

    Planar retarding potential analyzers (RPAs) have been utilized numerous times on high profile missions such as the Communications/Navigation Outage Forecast System and the Defense Meteorological Satellite Program to measure plasma composition, temperature, density, and the velocity component perpendicular to the plane of the instrument aperture. These instruments use biased grids to approximate ideal biased planes. These grids introduce perturbations in the electric potential distribution inside the instrument and when unaccounted for cause errors in the measured plasma parameters. Traditionally, the grids utilized in RPAs have been made of fine wires woven into a mesh. Previous studies on the errors caused by grids in RPAs have approximated woven grids with a truly flat grid. Using a commercial ion optics software package, errors in inferred parameters caused by both woven and flat grids are examined. A flat grid geometry shows the smallest temperature and density errors, while the double thick flat grid displays minimal errors for velocities over the temperature and velocity range used. Wire thickness along the dominant flow direction is found to be a critical design parameter in regard to errors in all three inferred plasma parameters. The results shown for each case provide valuable design guidelines for future RPA development.

  8. Stochastic models for turbulent reacting flows

    SciTech Connect (OSTI)

    Kerstein, A. [Sandia National Laboratories, Livermore, CA (United States)

    1993-12-01

    The goal of this program is to develop and apply stochastic models of various processes occurring within turbulent reacting flows in order to identify the fundamental mechanisms governing these flows, to support experimental studies of these flows, and to further the development of comprehensive turbulent reacting flow models.

  9. Methods for Numerical Flow Simulation Rolf Rannacher

    E-Print Network [OSTI]

    models of laminar hemodynamical flows. We discuss space and time dis- cretization with emphasis as flow control and model calibration. We concen- trate on laminar flows in which all relevant spatial-Stokes equations The continuum mechanical model of the flow of a viscous Newtonian fluid is the system

  10. CE 576 Environmental Flows Spring 2012

    E-Print Network [OSTI]

    Rehmann, Chris

    .1. Conservation of mass 1.2. Conservation of momentum 2. Channel flows 2.1. Laminar flow 2.1.1. Flow in a tubeCE 576 Environmental Flows Spring 2012 Course information Instructor: Prof. Chris Rehmann rehmann in environmental fluid mechanics Prerequisites: Elementary fluid mechanics, calculus, differential equations

  11. Progress in Grid Scale Flow Batteries

    E-Print Network [OSTI]

    Progress in Grid Scale Flow Batteries IMRE GYUK, PROGRAM MANAGER ENERGY STORAGE RESEARCH, DOE Flow 2011Year #12;Flow Battery Research at PNNL and Sandia #12; Iron-containing "MetIL" Redox Couples for Flow Batteries, Sandia Sandia has developed

  12. Lithospheric Heat Flow and Dynamics! obvious signals!

    E-Print Network [OSTI]

    Sandwell, David T.

    · $d( ) heat = flow scalar subsidence rate constant X #12;heat flow related to subsidence rate (qb ! quLithospheric Heat Flow and Dynamics! ! · obvious signals! - heat flow, depth, and geoid height?! - are transform faults thermal contraction cracks?! #12;global heat budget! 7.5 TW 44 TW 25-15 TW 3-13 TW

  13. Political Polarization over Global Warming: Analyzing Twitter Data on Climate Change

    E-Print Network [OSTI]

    Sukthankar, Gita Reese

    Political Polarization over Global Warming: Analyzing Twitter Data on Climate Change Alireza/Democrats are more likely to ex- press personal concern about global warming than are self-identified conservatives

  14. Comment on 'Discussions on common errors in analyzing sea level accelerations, solar trends and global warming'

    E-Print Network [OSTI]

    Benestad, R E

    2013-01-01

    Comment on Scafetta, Nicola. 'Discussion on Common Errors in Analyzing Sea Level Accelerations, Solar Trends and Global Warming.' arXiv:1305.2812 (May 13, 2013a). doi:10.5194/prp-1-37-2013.

  15. 2004 ABAQUS Users' Conference 81 Utilizing ABAQUS to Analyze the Active Vibration

    E-Print Network [OSTI]

    Vel, Senthil

    2004 ABAQUS Users' Conference 81 Utilizing ABAQUS to Analyze the Active Vibration Suppression be utilized in the numerical simulation of active feedback control for the purpose of vibration suppression from previous work. Keywords: Active Vibration Suppression, Composites, Dynamics, Piezoelectric Shear

  16. Chromatin Ionic Atmosphere Analyzed by a Mesoscale Electrostatic Hin Hark Gan

    E-Print Network [OSTI]

    Schlick, Tamar

    Chromatin Ionic Atmosphere Analyzed by a Mesoscale Electrostatic Approach Hin Hark Gan and Tamar an electrostatic model to handle multivalent ions and compute the ionic distribution around a mesoscale chromatin

  17. Analyzing Casualty Risk using State Data on Police-Reported Crashes...

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

    Casualty Risk using State Data on Police-Reported Crashes Analyzing Casualty Risk using State Data on Police-Reported Crashes 2011 DOE Hydrogen and Fuel Cells Program, and Vehicle...

  18. Cyclohexene Photo-oxidation over Vanadia Catalyst Analyzed by Time Resolved ATR-FT-IR Spectroscopy

    E-Print Network [OSTI]

    Mul, Guido

    2008-01-01

    Cyclohexene Photo-oxidation over Vanadia Catalyst AnalyzedThe performance in the selective photo-oxidation of liquidUV radiation is required to photo-activate the catalytic

  19. A New Theoretical Approach to Analyze Complex Processes in Cytoskeleton Proteins

    E-Print Network [OSTI]

    A New Theoretical Approach to Analyze Complex Processes in Cytoskeleton Proteins Xin Li and Anatoly University, Houston, Texas 77005, United States ABSTRACT: Cytoskeleton proteins are filament structures methods provide a comprehensive picture of biochemical and biophysical processes in cytoskeleton proteins

  20. Using Misbehavior to Analyze Strategic versus Aggregate Energy Minimization in Wireless

    E-Print Network [OSTI]

    Wei, Shuangqing

    Using Misbehavior to Analyze Strategic versus Aggregate Energy Minimization in Wireless Sensor own wireless network against energy attacks by an intelligent adversary. This work was supported wireless communication accounts for a significant portion of node energy consumption, network lifetime

  1. A Management Tool for Analyzing CHP Natural Gas Liquids Recovery System 

    E-Print Network [OSTI]

    Olsen, C.; Kozman, T. A.; Lee, J.

    2008-01-01

    The objective of this research is to develop a management tool for analyzing combined heat and power (CHP) natural gas liquids (NGL) recovery systems. The methodology is developed around the central ideas of product recovery, possible recovery...

  2. BPD Webinar: Analyze Building Energy Data, Understand Market Trends, Inform Decisions (Text Version)

    Broader source: Energy.gov [DOE]

    Below is the text version of the webinar for the Building Performance Database: Analyze Building Energy Data, Understand Market Trends, Inform Decisions, presented in October 2015. Watch the webinar.

  3. Applying model-based methods to analyze genomics data Zhaohui Qin

    E-Print Network [OSTI]

    Jin, Jiashun

    Applying model-based methods to analyze genomics data by Zhaohui Qin Department of Biostatistics in the post-genomic era. Effective clustering and screening algorithms facilitate the identification of subtle

  4. Development of an Improved Methodology for Analyzing Existing Single-Family Residential Energy Use 

    E-Print Network [OSTI]

    Kim, Kee Han

    2014-05-29

    The purpose of this study was to develop an improved methodology for analyzing the energy use from existing single-family. The overall goal of this work is to make home energy audits more effective by providing homeowners ...

  5. Analyzing spatial-temporal patterns of motor vehicle crashes using GIS: a case study in Dallas 

    E-Print Network [OSTI]

    Lu, Bing

    2003-01-01

    This paper uses GIS to analyze the characteristics of temporal and spatial distributions of motor vehicle crashes. These characteristics include that traffic accidents are most likely to occur in the afternoon "rush hour" (4:00 - 6:00PM...

  6. On-line chemical composition analyzer development. Status report, February 1, 1993--April 30, 1993

    SciTech Connect (OSTI)

    Garrison, A.A.

    1993-06-01

    This report relates to the development of an on-line Raman analyzer for control of a distillation column. It is divided into: program issues, experimental control system evaluation, energy savings analysis, and reliability analysis. (DLC)

  7. Automated Protocol for the Analysis of Dynamic Mechanical Analyzer Date from Fine Aggregate Asphalt Mixes 

    E-Print Network [OSTI]

    Cavalcanti De Sousa, Pedro

    2010-10-12

    Fatigue cracking and moisture damage are two important modes of distresses in asphalt pavements. Recently, the Dynamic Mechanical Analyzer (DMA) was used to characterize fatigue cracking and evaluate the effects of moisture damage on the Fine...

  8. Locating an active fault zone in Coso geothermal field by analyzing...

    Open Energy Info (EERE)

    Locating an active fault zone in Coso geothermal field by analyzing seismic guided waves from microearthquake data Jump to: navigation, search OpenEI Reference LibraryAdd to...

  9. Accelerating digital health innovation : analyzing opportunities in the healthcare innovation ecosystem

    E-Print Network [OSTI]

    Cohen, Elliot, M.B.A. Massachusetts Institute of Technology

    2013-01-01

    There has recently been a dramatic increase in demand for healthcare innovation. In this thesis we present a framework for analyzing a digital health innovation ecosystem in the US. Our framework consists of four key ...

  10. RESEARCH Open Access The SAAP pipeline and database: tools to analyze

    E-Print Network [OSTI]

    Martin, Andrew C.R.

    RESEARCH Open Access The SAAP pipeline and database: tools to analyze the impact and predict a new analysis pipeline and web interface. Results of machine learning using the structural analysis

  11. Analyzing the Impact of Mobility in Ad Hoc Networks Vincent Lenders, Jorg Wagner, and Martin May

    E-Print Network [OSTI]

    Lenders, Vincent

    Analyzing the Impact of Mobility in Ad Hoc Networks Vincent Lenders, J¨org Wagner, and Martin May Computer Engineering and Networks Laboratory ETH Zurich 8092 Zurich, Switzerland lenders

  12. Development of High-Throughput Microfluidic Impedance Spectroscopy Platform for Analyzing Microdroplets in Droplet Microfluidic System 

    E-Print Network [OSTI]

    Sobahi, Nebras MohammedKamal A.

    2014-07-22

    This thesis presents the development of a high-throughput microfluidic impedance spectroscopy platform for electrically detecting analyzing impedance measurements of non-contact and label free microdroplets. This microfluidic impedance spectroscopy...

  13. The development of a rotordynamics computer code to analyze multi- stage centrifugal pumps 

    E-Print Network [OSTI]

    Gajan, Richard James

    1987-01-01

    THE DEVELOPMENT OF A ROTORDYNAMICS COMPUTER CODE TO ANALYZE MULTI-STAGE CENTRIFUGAL PUMPS A Thesis by RICHARD JAMES GAJAN Submitted to the Graduate College of Texas A 6 M University in partial fulfillment of the requirements for the degree... of MASTER OF SCIENCE December 1987 Major Subject: Mechanical Engineering THE DEVELOPMENT OF A ROTORDYNAMICS COMPUTER CODE TO ANALYZE MULTI-STAGE CENTRIFUGAL PUMPS A Thesis by RICHARD JAMES GAJAN Approved as to style and content by: J rgen Nikolajsen...

  14. Analyzing power measurements in high-P/sup 2//sub parallel/ p-p elastic scattering

    SciTech Connect (OSTI)

    Raymond, R.S.; Brown, K.A.; Bruni, R.J.; Cameron, P.R.; Crabb, D.G.; Cummings, R.L.; Khiari, F.Z.; Krisch, A.D.; Lin, A.M.T.; Terwilliger, K.M.

    1984-11-15

    The analyzing power in 28 GeV/c proton/proton elastic scattering was measured at P/sup 2//sub parallel/ = 5.95 and 6.56 (GeV/c)/sup 2/ using a polarized proton target and an unpolarized proton beam at the Brookhaven National Laboratory AGS. Results indicate that the analyzing power, A, is rising sharply with P/sup 2//sub parallel/.

  15. Low-energy neutron-12C analyzing powers: Results from a multichannel algebraic scattering theory

    E-Print Network [OSTI]

    J. P. Svenne; K. Amos; S. Karataglidis; D. van der Knijff; L. Canton; G. Pisent

    2005-10-29

    Analyzing powers in low-energy neutron scattering from 12C are calculated in an algebraic momentum-space coupled-channel formalism (MCAS). The results are compared with recently obtained experimental data. The channel-coupling potentials have been defined previously to reproduce the total cross section and sub-threshold bound states of the compound system. Without further adjustment, good agreement with data for the analyzing powers is obtained.

  16. Evaluation of Portable X-Ray Fluorescence (XRF) Analyzer for Zirconium-Thickness Measurements

    SciTech Connect (OSTI)

    Glenn Moore

    2013-09-01

    This Technical Evaluation Report provides details of preliminary testing/experiments performed using a handheld X-ray fluorescence analyzer. The analyzer will be utilized in upcoming fuel-foil-rolling optimization studies at the INL. The studies are being performed in support of DOE’s Office of Global Threat Reduction -- Reactor Conversion Subprogram. Details of the equipment used, operating parameters, and measurement results are provided in this report.

  17. MPSalsa 3D Simulations of Chemically Reacting Flows

    DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

    Many important scientific and engineering applications require a detailed analysis of complex systems with coupled fluid flow, thermal energy transfer, mass transfer and nonequilibrium chemical reactions. Currently, computer simulations of these complex reacting flow problems are limited to idealized systems in one or two spatial dimensions when coupled with a detailed, fundamental chemistry model. The goal of our research is to develop, analyze and implement advanced MP numerical algorithms that will allow high resolution 3D simulations with an equal emphasis on fluid flow and chemical kinetics modeling. In our research, we focus on the development of new, fully coupled, implicit solution strategies that are based on robust MP iterative solution methods (copied from http://www.cs.sandia.gov/CRF/MPSalsa/). These simulations are needed for scientific and technical areas such as: combustion research for transportation, atmospheric chemistry modeling for pollution studies, chemically reacting flow models for analysis and control of manufacturing processes, surface catalytic reactors for methane to methanol conversion and chemical vapor deposition (CVD) process modeling for production of advanced semiconductor materials (http://www.cs.sandia.gov/CRF/MPSalsa/).

    This project website provides six QuickTime videos of these simulations, along with a small image gallery and slideshow animations. A list of related publications and conference presentations is also made available.

  18. Signal Flows in Non-Markovian Linear Quantum Feedback Networks

    E-Print Network [OSTI]

    Re-Bing Wu; Jing Zhang; Yu-xi Liu; Tzyh-Jong Tarn

    2014-12-17

    Enabled by rapidly developing quantum technologies, it is possible to network quantum systems at a much larger scale in the near future. To deal with non-Markovian dynamics that is prevalent in solid-state devices, we propose a general transfer function based framework for modeling linear quantum networks, in which signal flow graphs are applied to characterize the network topology by flow of quantum signals. We define a noncommutative ring $\\mathbb{D}$ and use its elements to construct Hamiltonians, transformations and transfer functions for both active and passive systems. The signal flow graph obtained for direct and indirect coherent quantum feedback systems clearly show the feedback loop via bidirectional signal flows. Importantly, the transfer function from input to output field is derived for non-Markovian quantum systems with colored inputs, from which the Markovian input-output relation can be easily obtained as a limiting case. Moreover, the transfer function possesses a symmetry structure that is analogous to the well-know scattering transformation in \\sd picture. Finally, we show that these transfer functions can be integrated to build complex feedback networks via interconnections, serial products and feedback, which may include either direct or indirect coherent feedback loops, and transfer functions between quantum signal nodes can be calculated by the Riegle's matrix gain rule. The theory paves the way for modeling, analyzing and synthesizing non-Markovian linear quantum feedback networks in the frequency-domain.

  19. Mirrored serpentine flow channels for fuel cell

    DOE Patents [OSTI]

    Rock, Jeffrey Allan (Rochester, NY)

    2000-08-08

    A PEM fuel cell having serpentine flow field channels wherein the input/inlet legs of each channel border the input/inlet legs of the next adjacent channels in the same flow field, and the output/exit legs of each channel border the output/exit legs of the next adjacent channels in the same flow field. The serpentine fuel flow channels may be longer, and may contain more medial legs, than the serpentine oxidant flow channels.

  20. Cumulant expansions for atmospheric flows

    E-Print Network [OSTI]

    Ait-Chaalal, Farid; Meyer, Bettina; Marston, J B

    2015-01-01

    The equations governing atmospheric flows are nonlinear, and consequently the hierarchy of cumulant equations is not closed. But because atmospheric flows are inhomogeneous and anisotropic, the nonlinearity may manifests itself only weakly through interactions of mean fields with disturbances such as thermals or eddies. In such situations, truncations of the hierarchy of cumulant equations hold promise as a closure strategy. We review how truncations at second order can be used to model and elucidate the dynamics of turbulent atmospheric flows. Two examples are considered. First, we study the growth of a dry convective boundary layer, which is heated from below, leading to turbulent upward energy transport and growth of the boundary layer. We demonstrate that a quasilinear truncation of the equations of motion, in which interactions of disturbances among each other are neglected but interactions with mean fields are taken into account, can successfully capture the growth of the convective boundary layer. Seco...

  1. Valve for controlling solids flow

    DOE Patents [OSTI]

    Staiger, M.D.

    1982-09-29

    A valve for controlling the flow of solids comprises a vessel having an overflow point, an inlet line for discharging solids into the vessel positioned within the vessel such that the inlet line's discharge point is lower than the vessel's overflow point, and means for introducing a fluidizing fluid into the vessel. The fluidizing fluid fluidizes the solids within the vessel so that they overflow at the vessel's overflow point. For the removal of nuclear waste product the vessel may be placed within a sealed container having a bottom connected transport line for transporting the solids to storage or other sites. The rate of solids flow is controlled by the flow rate of the fluidizing fluid and by V-notch weirs of different sizes spaced about the top of the vessel.

  2. Quasi-normal acoustic oscillations in the Michel flow

    E-Print Network [OSTI]

    Chaverra, Eliana; Sarbach, Olivier

    2015-01-01

    We study spherical and nonspherical linear acoustic perturbations of the Michel flow, which describes the steady radial accretion of a perfect fluid into a nonrotating black hole. The dynamics of such perturbations are governed by a scalar wave equation on an effective curved background geometry determined by the acoustic metric, which is constructed from the spacetime metric and the particle density and four-velocity of the fluid. For the problem under consideration in this article the acoustic metric has the same qualitative features as an asymptotically flat, static and spherically symmetric black hole, and thus it represents a natural astrophysical analogue black hole. As for the case of a scalar field propagating on a Schwarzschild background, we show that acoustic perturbations of the Michel flow exhibit quasi-normal oscillations. Based on a new numerical method for determining the solutions of the radial mode equation, we compute the associated frequencies and analyze their dependency on the radii of t...

  3. Experimental studies of pedestrian flows under different boundary conditions

    E-Print Network [OSTI]

    Zhang, Jun

    2015-01-01

    In this article the dynamics of pedestrian streams in four different scenarios are compared empirically to investigate the influence of boundary conditions on it. The Voronoi method, which allows high resolution and small fluctuations of measured density in time and space, is used to analyze the experiments. It is found that pedestrian movement in systems with different boundary conditions (open, periodic boundary conditions and outflow restrained) presents various characteristics especially when the density is larger than 2 m-2. In open corridor systems the specific flow increases continuously with increasing density till 4 m-2. The specific flow keeps constant in systems with restrained outflow, whereas it decreases from 1 (m.s)-1 to zero in system with closed periodical condition.

  4. The spatio-temporal spectrum of turbulent flows

    E-Print Network [OSTI]

    di Leoni, P Clark; Mininni, P D

    2015-01-01

    Identification and extraction of vortical structures and of waves in a disorganized flow is a mayor challegen in the study of turbulence. We present a study of the spatio-temporal behavior of turbulent flows in the presence of different restitutive forces. We show how to compute and analyze the spatio-temporal spectrum from data stemming from numerical simulations and from laboratory experiments. Four cases are considered: homogeneous and isotropic turbulence, rotating turbulence, stratified turbulence, and water wave turbulence. For homogeneous and isotropic turbulence, the spectrum allows identification of random sweeping. For rotating and for stratified turbulence, the spectrum allows identification of the waves, quantification of the energy in the waves and in the turbulent eddies, and identification of physical mechanisms such as Doppler shift and wave absorption in critical layers. Finally, in water wave turbulence the spectrum shows a transition from gravity-capillary waves to bound waves as the amplit...

  5. Seasonal dynamics of the near-surface alongshore flow off central Chile

    E-Print Network [OSTI]

    Kurapov, Alexander

    the importance of the wind stress curl on the dynamics of this flow. Although the offshore integrated Sverdrup transport was similar to the model transport, the offshore jet was not located where the wind stress curl-surface circulation off central Chile was analyzed using satellite altimetry and an oceanic model. To evaluate

  6. Determination of Nitrogen by Flow Injection Analysis in Environmental and Wastewaters

    SciTech Connect (OSTI)

    Straw, K.A.

    1999-03-01

    In summary, three generations of Lachat FIA systems have been used in the laboratory over a period of 13 yrs, running, in addition to the 4 N methods, Cr{sup +6}, SiO{sub 2}, Fluoride by ISE. Overall flow injection systems have been versatile and reliable and a good choice in the lab for analyzing a wide variety of samples quickly.

  7. Flow-Through vs Flow-Over: Analysis of Transport and Binding in Nanohole Array Plasmonic

    E-Print Network [OSTI]

    Brolo, Alexandre G.

    Flow-Through vs Flow-Over: Analysis of Transport and Binding in Nanohole Array Plasmonic Biosensors of flow-through nanohole sensing, as compared to the established flow-over format, through scaling and analytical response. The additional benefit offered by flow- through operation is, however, a complex

  8. Nuclear reactor downcomer flow deflector

    DOE Patents [OSTI]

    Gilmore, Charles B. (Greensburg, PA); Altman, David A. (Pittsburgh, PA); Singleton, Norman R. (Murrysville, PA)

    2011-02-15

    A nuclear reactor having a coolant flow deflector secured to a reactor core barrel in line with a coolant inlet nozzle. The flow deflector redirects incoming coolant down an annulus between the core barrel and the reactor vessel. The deflector has a main body with a front side facing the fluid inlet nozzle and a rear side facing the core barrel. The rear side of the main body has at least one protrusion secured to the core barrel so that a gap exists between the rear side of the main body adjacent the protrusion and the core barrel. Preferably, the protrusion is a relief that circumscribes the rear side of the main body.

  9. Upstream swimming in microbiological flows

    E-Print Network [OSTI]

    Mathijssen, Arnold J T M; Yeomans, Julia M; Doostmohammadi, Amin

    2015-01-01

    Interactions between microorganisms and their complex flowing environments are essential in many biological systems. We develop a model for microswimmer dynamics in non-Newtonian Poiseuille flows. We predict that swimmers in shear-thickening (-thinning) fluids migrate upstream more (less) quickly than in Newtonian fluids and demonstrate that viscoelastic normal stress differences reorient swimmers causing them to migrate upstream at the centreline, in contrast to well-known boundary accumulation in quiescent Newtonian fluids. Based on these observations, we suggest a sorting mechanism to select microbes by swimming speed.

  10. Upstream swimming in microbiological flows

    E-Print Network [OSTI]

    Arnold J. T. M. Mathijssen; Tyler N. Shendruk; Julia M. Yeomans; Amin Doostmohammadi

    2015-07-03

    Interactions between microorganisms and their complex flowing environments are essential in many biological systems. We develop a model for microswimmer dynamics in non-Newtonian Poiseuille flows. We predict that swimmers in shear-thickening (-thinning) fluids migrate upstream more (less) quickly than in Newtonian fluids and demonstrate that viscoelastic normal stress differences reorient swimmers causing them to migrate upstream at the centreline, in contrast to well-known boundary accumulation in quiescent Newtonian fluids. Based on these observations, we suggest a sorting mechanism to select microbes by swimming speed.

  11. Formation of the compression zone in a plasma flow generated by a magnetoplasma compressor

    SciTech Connect (OSTI)

    Solyakov, D. G. Petrov, Yu. V.; Garkusha, I. E.; Chebotarev, V. V.; Ladygina, M. S.; Cherednichenko, T. N.; Morgal’, Ya. I.; Kulik, N. V.; Stal’tsov, V. V.; Eliseev, D. V.

    2013-12-15

    Processes occurring in a plasma flow generated by a magnetoplasma compressor (MPC) during the formation of the compression zone are discussed. The paper presents results of measurements of the spatial distribution of the electric current in the plasma flow, the temporal and spatial (along the flow) distributions of the plasma density, and the profiles of the velocity of individual flow layers along the system axis. The spatial distribution of the electromagnetic force in the flow is analyzed. It is shown that the plasma flow is decelerated when approaching the compression zone and reaccelerated after passing it. In this case, the plasma flow velocity decreases from ? = (2–3) × 10{sup 7} cm/s at the MPC output to ? < 10{sup 6} cm/s in the region of maximum compression and then again increases to 10{sup 7} cm/s at a distance of 15–17 cm from the MPC output. In some MPC operating modes, a displacement of the magnetic field from the compression zone and the formation of toroidal electric current vortices in the plasma flow after passing the compression zone were detected.

  12. BBN Technical Memorandum No. 1321 Using Signal Processing to Analyze Wireless Data Traffic

    E-Print Network [OSTI]

    Strayer, William Timothy

    such as tunneling, traf- fic aggregation, false traffic generation, and data padding. Tunneling hides the original and uses security gateways as the endpoints as traffic traverses hostile networks. Traffic aggregation works with tunneling under the theory of protection in numbers--many traffic flows all sharing the same

  13. Analysis of MSIV-ATWS events with the BNL plant analyzer

    SciTech Connect (OSTI)

    Diamond, D.J.

    1986-06-01

    There are automatic safety features and operator-initiated emergency procedures which influence the sequence of events until the time when the standby liquid control system (SLCS), or other attempts to get control rods inserted, can effect shutdown of the core. One emergency procedure for a BWR/4 would require the operator to reduce the flow of high pressure coolant injection (HPCI) into the reactor. The core inlet flow rate at this time would be due to natural circulation and the reduced flow would lower the water level in the downcomer thereby reducing the natural circulation flow rate. This effect, and the reduction in core inlet subcooling due to mixing of the emergency feedwater with steam in the downcomer when the level was lowered, cause a sufficient increase in core void fraction so that the power would be reduced. A reduction in pressure might also be called for during this event in order to comply with the PSP heat capacity temperature limit (or possibly to prevent cycling of relief valves). In the past few years there have been several studies of this problem with the emphasis on calculating the power level in the core. In the present study we consider the power level as well as the resulting PSP temperature and take into account different assumptions regarding plant parameters and operator actions.

  14. Numerical simulation of a thermoacoustic refrigerator. I. Unsteady adiabatic flow around the stack

    SciTech Connect (OSTI)

    Worlikar, A.S.; Knio, O.M.

    1996-09-01

    A low Mach-number compressible flow model for the simulation of acoustically driven flow in a thermoacoustic stack is constructed. The model is based on the assumption that the acoustic wavelength is much larger than the characteristic hydrodynamic lengthscale. Thus, a simplified description of the flow is obtained which still retains the essential features of acoustically induced velocity oscillations near solid boundaries. A vorticity-based formulation of the governing equation is derived which relies on the Helmholtz decomposition of the velocity vector into irrotational and divergence-free components. Irrotational motion is used to represent the action of acoustic waves. Meanwhile the divergence-free velocity component is used to capture the nonlinear vortical perturbations due to no-slip boundaries. A simplified version of the model is applied to analyze unsteady flow in the neighborhood of an idealized thermo-acoustic stack which consists of a periodic array of thin plates placed in an acoustic standing wave. Computed results are used to analyze, for different stack configurations, the nonlinear response of the flow to different acoustic driving amplitudes and frequencies. In particular, it is shown that the flow is dominated by the motion of vortices which result from the shedding of boundary layers from the edges of the stack. The dependence of energy losses on stack configuration and operating conditions is also examined. 28 refs., 23 figs., 2 tabs.

  15. Laminar flame and acoustic waves in two-dimensional flow

    SciTech Connect (OSTI)

    Zaytsev, M. L., E-mail: mlzaytsev@gmail.com; Akkerman, V. B., E-mail: slava.akkerman@gmail.com [Russian Academy of Sciences, Nuclear Safety Institute (Russian Federation)

    2011-03-15

    The complete system of fluid dynamics equations describing the development of instability of a reaction front in a two-dimensional flow in reversed time are reduced to a closed system of equations of front dynamics by using Lagrangian variables and integrals of motion. The system can be used to analyze processes behind the front without solving the complete system of fluid dynamics and chemical kinetics equations. It is demonstrated how the gas density disturbances induced by the moving front can be described in the adiabatic approximation.

  16. IHT: Tools for Computing Insolation Absorption by Particle Laden Flows

    SciTech Connect (OSTI)

    Grout, R. W.

    2013-10-01

    This report describes IHT, a toolkit for computing radiative heat exchange between particles. Well suited for insolation absorption computations, it is also has potential applications in combustion (sooting flames), biomass gasification processes and similar processes. The algorithm is based on the 'Photon Monte Carlo' approach and implemented in a library that can be interfaced with a variety of computational fluid dynamics codes to analyze radiative heat transfer in particle-laden flows. The emphasis in this report is on the data structures and organization of IHT for developers seeking to use the IHT toolkit to add Photon Monte Carlo capabilities to their own codes.

  17. Fluid flow effects on electroplating

    SciTech Connect (OSTI)

    Kirkpatrick, J.R.

    1990-09-01

    The effects of fluid flow patterns on the electroplating of rotating cylindrically symmetric objects are examined. Ways are outlined for preventing undesirable spiral patterns on the plated surface. Estimates are given for the diffusion boundary later thickness for cylinders, disks, spheres, and cones. 16 refs., 7 figs., 1 tab.

  18. Stopping Cooling Flows with Jets

    E-Print Network [OSTI]

    Fabrizio Brighenti; William G. Mathews

    2006-01-24

    We describe 2D gasdynamical models of jets that carry mass as well as energy to the hot gas in galaxy clusters. These flows have many attractive attributes for solving the galaxy cluster cooling flow problem: Why the hot gas temperature and density profiles resemble cooling flows but show no spectral evidence of cooling to low temperatures. Using an approximate model for the cluster A1795, we show that mass-carrying jets can reduce the overall cooling rate to or below the low values implied by X-ray spectra. Biconical subrelativistic jets, described with several ad hoc parameters, are assumed to be activated when gas flows toward or cools near a central supermassive black hole. As the jets proceed out from the center they entrain more and more ambient gas. The jets lose internal pressure by expansion and are compressed by the ambient cluster gas, becoming rather difficult to observe. For a wide variety of initial jet parameters and several feedback scenarios the global cooling can be suppressed for many Gyrs while maintaining cluster temperature profiles similar to those observed. The intermittancy of the feedback generates multiple generations of X-ray cavities similar to those observed in the Perseus Cluster and elsewhere.

  19. Cyclic Thermodynamics with Open Flow

    SciTech Connect (OSTI)

    Reid, R.S.; Ward, W.C.; Swift, G.W.

    1998-05-01

    Some general features of a new class of thermodynamic device combining a thermodynamic cycle with the externally applied steady flow of an open thermodynamic process are discussed and experimentally demonstrated in the context of a thermoacoustic refrigerator. {copyright} {ital 1998} {ital The American Physical Society}

  20. Rinse trough with improved flow

    DOE Patents [OSTI]

    O'Hern, Timothy J. (Albuquerque, NM); Grasser, Thomas W. (Albuquerque, NM)

    1998-01-01

    Novel rinse troughs accomplish thorough uniform rinsing. The troughs are suitable for one or more essentially planar objects having substantially the same shape. The troughs ensure that each surface is rinsed uniformly. The new troughs provide uniform rinse fluid flow over the objects' surfaces to accomplish a more thorough rinse than prior art troughs.

  1. Rinse trough with improved flow

    DOE Patents [OSTI]

    O`Hern, T.J.; Grasser, T.W.

    1998-08-11

    Novel rinse troughs accomplish thorough uniform rinsing. The troughs are suitable for one or more essentially planar objects having substantially the same shape. The troughs ensure that each surface is rinsed uniformly. The new troughs provide uniform rinse fluid flow over the objects` surfaces to accomplish a more thorough rinse than prior art troughs. 5 figs.

  2. TCP Flow Controls Matthew Roughan

    E-Print Network [OSTI]

    Roughan, Matthew

    connections Much is known about the qualitative performance of the Internet the Internet works! Little is known about the quantitative performance of the TCP flow controls mostly by simulation, few analytic Paxson, "Measurements and Analysis of End-to-End Internet Dynamics" PhD Thesis Van Jacobson, "Congestion

  3. Superconducting flux flow digital circuits

    DOE Patents [OSTI]

    Hietala, V.M.; Martens, J.S.; Zipperian, T.E.

    1995-02-14

    A NOR/inverter logic gate circuit and a flip flop circuit implemented with superconducting flux flow transistors (SFFTs) are disclosed. Both circuits comprise two SFFTs with feedback lines. They have extremely low power dissipation, very high switching speeds, and the ability to interface between Josephson junction superconductor circuits and conventional microelectronics. 8 figs.

  4. Superconducting flux flow digital circuits

    DOE Patents [OSTI]

    Hietala, Vincent M. (Placitas, NM); Martens, Jon S. (Sunnyvale, CA); Zipperian, Thomas E. (Albuquerque, NM)

    1995-01-01

    A NOR/inverter logic gate circuit and a flip flop circuit implemented with superconducting flux flow transistors (SFFTs). Both circuits comprise two SFFTs with feedback lines. They have extremely low power dissipation, very high switching speeds, and the ability to interface between Josephson junction superconductor circuits and conventional microelectronics.

  5. EFM units monitor gas flow

    SciTech Connect (OSTI)

    Not Available

    1994-02-01

    This paper describes the radio-controlled pipeline monitoring system established by Transcontinental Gas Pipe Line Corp. which was designed to equip all its natural gas purchasing metering facilities with electronic flow measurement computers. The paper describes the actual radio equipment used and the features and reliability of the equipment.

  6. A Simple Heat-Flow Quality Function And Appraisal Of Heat-Flow...

    Open Energy Info (EERE)

    A Simple Heat-Flow Quality Function And Appraisal Of Heat-Flow Measurements And Heat-Flow Estimates From The Uk Geothermal Catalogue Jump to: navigation, search OpenEI Reference...

  7. Cosmic Flows: A Status Report

    E-Print Network [OSTI]

    Stephane Courteau; Avishai Dekel

    2001-06-03

    We give a brief review of recent developments in the study of the large-scale velocity field of galaxies since the international workshop on Cosmic Flows held in July 1999 in Victoria, B.C. Peculiar velocities (PVs) yield a tight and unique constraint on cosmological characteristics, independent of Lambda and biasing, such as the cosmological matter density parameter Omega_m and the convergence of bulk flows on large scales. Significant progress towards incorporating non-linear dynamics and improvements of velocity field reconstruction techniques have led to a rigorous control of errors and much refined cosmic flow analyses. Current investigations favor low-amplitude (< 250 km/s) bulk flows on the largest scales (< ~100 Mpc/h) probed reliably by existing redshift-distance surveys, consistent with favored LambdaCDM cosmogonies. Tidal field analyses also suggest that the Shapley Concentration, located behind the Great Attractor (GA), might play an important dynamical role, even at the Local Group. Low-amplitude density fluctuations on very large scales generate the overall large-scale streaming motions while massive attractors like the GA, and Perseus-Pisces account for smaller scale motions which are superposed on the large-scale flow. Likelihood analyses of galaxy PVs, in the framework of flat CDM cosmology, now provide tight constraints of Omega_m = 0.35 +/- 0.05. A four-fold size increase of our data base is expected in the next 4-5 years with the completion of next generation FP/TF surveys and automated supernovae searches within 20,000 km/s.

  8. STATIONARITY IN SOLAR WIND FLOWS

    SciTech Connect (OSTI)

    Perri, S.; Balogh, A. E-mail: a.balogh@imperial.ac.u

    2010-05-01

    By using single-point measurements in space physics it is possible to study a phenomenon only as a function of time. This means that we cannot have direct access to information about spatial variations of a measured quantity. However, the investigation of the properties of turbulence and of related phenomena in the solar wind widely makes use of an approximation frequently adopted in hydrodynamics under certain conditions, the so-called Taylor hypothesis; indeed, the solar wind flow has a bulk velocity along the radial direction which is much higher than the velocity of a single turbulent eddy embedded in the main flow. This implies that the time of evolution of the turbulent features is longer than the transit time of the flow through the spacecraft position, so that the turbulent field can be considered frozen into the solar wind flow. This assumption allows one to easily associate time variations with spatial variations and stationarity to homogeneity. We have investigated, applying criteria for weak stationarity to Ulysses magnetic field data in different solar wind regimes, at which timescale and under which conditions the hypothesis of stationarity, and then of homogeneity, of turbulence in the solar wind is well justified. We extend the conclusions of previous studies by Matthaeus and Goldstein to different parameter ranges in the solar wind. We conclude that the stationarity assumption in the inertial range of turbulence on timescales of 10 minutes to 1 day is reasonably satisfied in fast and uniform solar wind flows, but that in mixed, interacting fast, and slow solar wind streams the assumption is frequently only marginally valid.

  9. Introduction We will analyze data that are given as an n d matrix of real numbers. The number

    E-Print Network [OSTI]

    Klemelä, Jussi

    function graphs to analyze physical data, and Playfair (1786, 1801) invented the histogram, the pie chart

  10. Molybdenum Coatings with Filtration of Plasma Flow

    SciTech Connect (OSTI)

    Gasilin, V. V.; Nezovibat'ko, Y. N.; Shvets, O. M.; Taran, V. S.; Tereshin, V. I.; Timoshenko, A. I.; Zavaleev, V. A.

    2008-03-19

    Deposition of molybdenum coatings in arc discharge with assistance of HF one is analyzed in this paper. To avoid substrate heating to high temperature and micro-arc formation during cleaning process, the surface cleaning was carried out with HF plasma only. For reduction of droplet fraction in plasma the 'freestanding' filter was utilized. As a filter a solenoid was used, which generated a curvilinear (with the angle of 90 deg.) transportation magnetic field. The effective crosssectional area of the plasma flow at which was observed the uniform distribution of the thickness of the applied coating, was equal to 113 sm{sup 2}. The coating on the base of arc discharge, filter and HF-biasing of substrate were deposited on different substrates, including glass and stainless steel.The optical (refractive index) properties of molybdenum films are presented. The reflective characteristics of the obtained molybdenum films in the range of wavelengths from 200 to 700 nm were measured.Molybdenum films were also investigated under the effect of the plasma emission, using an ECR discharge in a simple double-mirror magnetic trap. The time varying negative potential was supplied to sample holder what provided a wide energy distribution of ions bombarded the sample surface in range 30...1500V.

  11. Research on a logarithmically bent Laue crystal analyzer for X-ray monochromatic backlight imaging

    SciTech Connect (OSTI)

    Wu, Yufen; Xiao, Shali; Lu, Jian; Liu, Lifeng; Yang, Qingguo; Huang, Xianbin

    2013-07-15

    A new logarithmically bent Laue imaging crystal analyzer (LBLICA) was proposed to obtain the monochromatic image of plasmas and exhibited a great potential for application in the Inertial Confinement Fusion experiment over a large field of view (FOV) and with a high spatial resolution. The imaging geometry of the LBLICA has been discussed. According to the Bragg condition and the equation of the logarithmic spiral, the key image parameters of the crystal analyzer, including the system magnification, the spatial resolution, and the FOV, have been analyzed theoretically. An experiment has been performed with a Cu target X-ray tube as a backlighter to backlight a mesh grid consisting of 50-?m Cu wires, and the monochromatic image of the grid has been obtained with a spatial resolution of approximately 30 ?m.

  12. TOF Electron Energy Analyzer for Spin and Angular Resolved Photoemission Spectroscopy

    SciTech Connect (OSTI)

    Lebedev, Gennadi; Jozwiak, Chris; Andresen, Nord; Lanzara, Alessandra; Hussain, Zahid

    2008-07-09

    Current pulsed laser and synchrotron x-ray sources provide new opportunities for Time-Of- Flight (TOF) based photoemission spectroscopy to increase photoelectron energy resolution and efficiency compared to current standard techniques. The principals of photoelectron timing front formation, temporal aberration minimization, and optimization of electron beam transmission are presented. We have developed these concepts into a high resolution Electron Optical Scheme (EOS) of a TOF Electron Energy Analyzer (TOF-EEA) for photoemission spectroscopy. The EOS of the analyzer includes an electrostatic objective lens, three columns of transport lenses and a 90 degree energy band pass filter (BPF). The analyzer has two modes of operation: Spectrometer Mode (SM) with straight passage of electrons through the EOS undeflected by the BPF, allowing the entire spectrum to be measured, and Monochromator Mode (MM) in which the BPF defines a certain energy window inside the scope of the electron energy spectrum.

  13. Application of Printed Circuit Board Technology to FT-ICR MS Analyzer Cell Construction and Prototyping

    SciTech Connect (OSTI)

    Leach, Franklin E.; Norheim, Randolph V.; Anderson, Gordon A.; Pasa-Tolic, Ljiljana

    2014-12-01

    Although Fourier transform ion cyclotron resonance mass spectrometry (FT-ICRMS) remains themass spectrometry platform that provides the highest levels of performance for mass accuracy and resolving power, there is room for improvement in analyzer cell design as the ideal quadrupolar trapping potential has yet to be generated for a broadband MS experiment. To this end, analyzer cell designs have improved since the field’s inception, yet few research groups participate in this area because of the high cost of instrumentation efforts. As a step towards reducing this barrier to participation and allowing for more designs to be physically tested, we introduce a method of FT-ICR analyzer cell prototyping utilizing printed circuit boards at modest vacuum conditions. This method allows for inexpensive devices to be readily fabricated and tested over short intervals and should open the field to laboratories lacking or unable to access high performance machine shop facilities because of the required financial investment.

  14. System, apparatus and methods to implement high-speed network analyzers

    DOE Patents [OSTI]

    Ezick, James; Lethin, Richard; Ros-Giralt, Jordi; Szilagyi, Peter; Wohlford, David E

    2015-11-10

    Systems, apparatus and methods for the implementation of high-speed network analyzers are provided. A set of high-level specifications is used to define the behavior of the network analyzer emitted by a compiler. An optimized inline workflow to process regular expressions is presented without sacrificing the semantic capabilities of the processing engine. An optimized packet dispatcher implements a subset of the functions implemented by the network analyzer, providing a fast and slow path workflow used to accelerate specific processing units. Such dispatcher facility can also be used as a cache of policies, wherein if a policy is found, then packet manipulations associated with the policy can be quickly performed. An optimized method of generating DFA specifications for network signatures is also presented. The method accepts several optimization criteria, such as min-max allocations or optimal allocations based on the probability of occurrence of each signature input bit.

  15. Liquid metal Flow Meter - Final Report

    SciTech Connect (OSTI)

    Andersen, C.; Hoogendoom, S.; Hudson, B.; Prince, J.; Teichert, K.; Wood, J.; Chase, K.

    2007-01-30

    Measuring the flow of liquid metal presents serious challenges. Current commercially-available flow meters use ultrasonic, electromagnetic, and other technologies to measure flow, but are inadequate for liquid metal flow measurement because of the high temperatures required by most liquid metals. As a result of the reactivity and high temperatures of most liquid metals, corrosion and leakage become very serious safety concerns. The purpose of this project is to develop a flow meter for Lockheed Martin that measures the flow rate of molten metal in a conduit.

  16. Field-Flow Fractionation of Carbon Nanotubes and Related Materials

    SciTech Connect (OSTI)

    John P. Selegue

    2011-11-17

    During the grant period, we carried out FFF studies of carbonaceous soot, single-walled and multi-walled carbon nanotubes, carbon nano-onions and polyoxometallates. FFF alone does not provide enough information to fully characterize samples, so our suite of characterization techniques grew to include light scattering (especially Photon Correlation Spectroscopy), scanning and transmission electron microscopy, thermogravimetric analysis and spectroscopic methods. We developed convenient techniques to deposit and examine minute FFF fractions by electron microscopy. In collaboration with Arthur Cammers (University of Kentucky), we used Flow Field-Flow Fractionation (Fl-FFF) to monitor the solution-phase growth of keplerates, a class of polyoxometallate (POM) nanoparticles. We monitored the evolution of Mo-POM nanostructures over the course of weeks by by using flow field-flow fractionation and corroborated the nanoparticle structures by using transmission electron microscopy (TEM). Total molybdenum in the solution and precipitate phases was monitored by using inductively coupled plasma analyses, and total Mo-POM concentration by following the UV-visible spectra of the solution phase. We observe crystallization-driven formation of (Mo132) keplerate and solution phase-driven evolution of structurally related nanoscopic species (3-60 nm). FFF analyses of other classes of materials were less successful. Attempts to analyze platelets of layered materials, including exfoliated graphite (graphene) and TaS2 and MoS2, were disappointing. We were not able to optimize flow conditions for the layered materials. The metal sulfides react with the aqueous carrier liquid and settle out of suspension quickly because of their high density.

  17. PoroTomo Subtask 3.8 - Analyzed Boise Data for Oscillatory Hydraulic Tomography

    DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

    David Lim

    2014-03-25

    Data here has been "pre-processed" and "analyzed" from the raw data submitted to the GDR previously (raw datafiles found at http://gdr.openei.org/submissions/479. doi:10.15121/1176944 after 30 September 2017). First, we submit .mat files which are the "pre-processed" data (must have MATLAB software to use). Secondly, the csv files contain submitted data in its final analyzed form before being used for inversion. Specifically, we have fourier coefficients obtained from Fast Fourier Transform Algorithms.

  18. New Modeling Tool Analyzes Floating Platform Concepts for Offshore Wind Turbines (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2011-02-01

    Researchers at the National Renewable Energy Laboratory (NREL) developed a new complex modeling and analysis tool capable of analyzing floating platform concepts for offshore wind turbines. The new modeling tool combines the computational methodologies used to analyze land-based wind turbines with the comprehensive hydrodynamic computer programs developed for offshore oil and gas industries. This new coupled dynamic simulation tool will enable the development of cost-effective offshore technologies capable of harvesting the rich offshore wind resources at water depths that cannot be reached using the current technology.

  19. PORST: a computer code to analyze the performance of retrofitted steam turbines

    SciTech Connect (OSTI)

    Lee, C.; Hwang, I.T.

    1980-09-01

    The computer code PORST was developed to analyze the performance of a retrofitted steam turbine that is converted from a single generating to a cogenerating unit for purposes of district heating. Two retrofit schemes are considered: one converts a condensing turbine to a backpressure unit; the other allows the crossover extraction of steam between turbine cylinders. The code can analyze the performance of a turbine operating at: (1) valve-wide-open condition before retrofit, (2) partial load before retrofit, (3) valve-wide-open after retrofit, and (4) partial load after retrofit.

  20. PoroTomo Subtask 3.8 - Analyzed Boise Data for Oscillatory Hydraulic Tomography

    DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

    David Lim

    Data here has been "pre-processed" and "analyzed" from the raw data submitted to the GDR previously (raw datafiles found at http://gdr.openei.org/submissions/479. doi:10.15121/1176944 after 30 September 2017). First, we submit .mat files which are the "pre-processed" data (must have MATLAB software to use). Secondly, the csv files contain submitted data in its final analyzed form before being used for inversion. Specifically, we have fourier coefficients obtained from Fast Fourier Transform Algorithms.

  1. Law of Malus and Photon-Photon Correlations A Quasi-Deterministic Analyzer Model

    E-Print Network [OSTI]

    Dalton, B J

    2001-01-01

    For polarization experiments involving photon counting we introduce a quasi-deterministic eigenstate transition model of the analyzer process. Distributions accumulated one photon at a time, provide a deterministic explanation for the law of Malus. We combine this analyzer model with causal polarization coupling to calculate photon-photon correlations, one photon pair at a time. The calculated correlations exceed the Bell limits and show excellent agreement with the measured correlations of [ A. Aspect, P. Grangier and G. Rogers, Phys. Rev. Lett. 49 91 (1982)]. We discuss why this model exceeds the Bell type limits.

  2. Law of Malus and Photon-Photon Correlations: A Quasi-Deterministic Analyzer Model

    E-Print Network [OSTI]

    Bill Dalton

    2001-01-27

    For polarization experiments involving photon counting we introduce a quasi-deterministic eigenstate transition model of the analyzer process. Distributions accumulated one photon at a time, provide a deterministic explanation for the law of Malus. We combine this analyzer model with causal polarization coupling to calculate photon-photon correlations, one photon pair at a time. The calculated correlations exceed the Bell limits and show excellent agreement with the measured correlations of [ A. Aspect, P. Grangier and G. Rogers, Phys. Rev. Lett. 49 91 (1982)]. We discuss why this model exceeds the Bell type limits.

  3. Structure of processes in flow reactor and closed reactor: Flow reactor

    E-Print Network [OSTI]

    Greifswald, Ernst-Moritz-Arndt-Universität

    Structure of processes in flow reactor and closed reactor: Flow reactor Closed reactor Active Zone -- chemical quasi- equilibria, similarity principles and macroscopic kinetics", in: Lectures on Plasma Physics

  4. Soluble Lead Flow Battery: Soluble Lead Flow Battery Technology

    SciTech Connect (OSTI)

    2010-09-01

    GRIDS Project: General Atomics is developing a flow battery technology based on chemistry similar to that used in the traditional lead-acid battery found in nearly every car on the road today. Flow batteries store energy in chemicals that are held in tanks outside the battery. When the energy is needed, the chemicals are pumped through the battery. Using the same basic chemistry as a traditional battery but storing its energy outside of the cell allows for the use of very low cost materials. The goal is to develop a system that is far more durable than today’s lead-acid batteries, can be scaled to deliver megawatts of power, and which lowers the cost of energy storage below $100 per kilowatt hour.

  5. Fluid flow modeling of resin transfer molding for composite material wind turbine blade structures.

    SciTech Connect (OSTI)

    Cairns, Douglas S. (Montana State University, Bozeman, MT); Rossel, Scott M. (Montana State University, Bozeman, MT)

    2004-06-01

    Resin transfer molding (RTM) is a closed mold process for making composite materials. It has the potential to produce parts more cost effectively than hand lay-up or other methods. However, fluid flow tends to be unpredictable and parts the size of a wind turbine blade are difficult to engineer without some predictive method for resin flow. There were five goals of this study. The first was to determine permeabilities for three fabrics commonly used for RTM over a useful range of fiber volume fractions. Next, relations to estimate permeabilities in mixed fabric lay-ups were evaluated. Flow in blade substructures was analyzed and compared to predictions. Flow in a full-scale blade was predicted and substructure results were used to validate the accuracy of a full-scale blade prediction.

  6. A GIS-based Bayesian approach for analyzing spatial-temporal patterns of traffic crashes 

    E-Print Network [OSTI]

    Li, Linhua

    2009-06-02

    Map.............................................40 Figure 3.6 Identified Locations of Traffic Crashes, 2000 .........................................42 Figure 3.7 Adjacent Segments Definition on a Typical Freeway..............................49 Figure 3.8 Flow Diagram of Relative Crash Risk... probability of being involved in a crash increases linearly as the exposure increases. Persaud and Dzbik (1993) found that 1206.1 1 >=? for severe crashes on freeway segments that have more than 4 lanes. However, most researchers agree...

  7. Analyzing water supply in future energy systems using the TIMES Integrated Assessment Model (TIAM-FR)

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Analyzing water supply in future energy systems using the TIMES Integrated Assessment Model (TIAM Mathematics, MINES ParisTech Sophia Antipolis, France ABSTRACT Even though policies related to water is required to maintain water supplies while water is essential to produce energy. However, the models

  8. np-elastic analyzing power A(N0) at 485 and 788 MeV 

    E-Print Network [OSTI]

    McNaughton, M. W.; McNaughton, K. H.; Glass, G.; Riley, P. J.; Auer, KH; Davis, CA; Gulmez, E.; Hiebert, John C.; Jeppersen, R. H.; Ransome, R. D.; Spinka, H.; Sum, V.; Supek, I.; Tripard, G. E.; Woolverton, H.

    1996-01-01

    Measurements are reported for the np-elastic analyzing power from 30 degrees to 128 degrees c.m., at 485 and 788 MeV, with a typical precision of 0.005 and absolute accuracy of 2%. Results strengthen the isospin-0 phase-shift analysis, and clarify...

  9. Mira, the ALCF's 10-petaflops supercomputer, opens the door for researchers and industry to analyze

    E-Print Network [OSTI]

    Kemner, Ken

    ) Leadership Computing Facility Program to enable significant advances in computational science. The ALCF is Mira, a 10 petaflops IBM Blue Gene/Q. Materials science research to extend the range and powerMira, the ALCF's 10-petaflops supercomputer, opens the door for researchers and industry to analyze

  10. PROBLEM SOLVING AND SUSTAINED LEARNING FROM EXPERIENCE: ANALYZING METHODS WITH RESPECT TO DOMAIN CHARACTERISTICS

    E-Print Network [OSTI]

    Aamodt, Agnar

    PROBLEM SOLVING AND SUSTAINED LEARNING FROM EXPERIENCE: ANALYZING METHODS WITH RESPECT TO DOMAIN, Germany email: althoff@informatik.uni-kl.de Introduction Integration of learning and problem solving may to the problem solving solving task, as the perspective. Another example is "improved performance" as a goal

  11. Analyzing the Regional Impact of a Fossil Energy Cap in China

    E-Print Network [OSTI]

    energy products and an energy saving allowance trading market is the most cost- effective design, whileAnalyzing the Regional Impact of a Fossil Energy Cap in China Da Zhang, Valerie Karplus, Sebastian Rausch and Xiliang Zhang Report No. 237 January 2013 China Energy & Climate Project TSINGHUA - MIT #12

  12. Abstract--This paper describes experimental results aiming at analyzing lithium-ion batteries performances

    E-Print Network [OSTI]

    Boyer, Edmond

    Abstract--This paper describes experimental results aiming at analyzing lithium-ion batteries (SOH) of cells. Index Terms--Lithium-ion batteries, Aging, EIS, State Of Charge, State Of Health, Fuzzy Logic System. I. INTRODUCTION Lithium ion secondary batteries are now being used in wide applications

  13. Analyzing Pathways using SAT-based Ashish Tiwari, Carolyn Talcott, Merrill Knapp, Patrick Lincoln, and Keith

    E-Print Network [OSTI]

    above, a reaction network simply maps to a Petri net. Analyzing Petri nets is not easy. For instance, Patrick Lincoln, and Keith Laderoute SRI International, Menlo Park, CA 94025 Abstract. A network understand such generic networks and answer queries using them? In this paper, we present a novel approach

  14. Can Desert Dwellers Continue To Afford Lush Lawns: Analyzing Consumer Response to Rate Changes in

    E-Print Network [OSTI]

    Fay, Noah

    Can Desert Dwellers Continue To Afford Lush Lawns: Analyzing Consumer Response to Rate Changes of price and weather on wa- ter demand is important for Arizona. If the effect of weather is not well. In part, this is because few other studies use household data, and instead use data aggregated

  15. Analyzing the Impact of Useless Write-Backs on the Endurance and Energy Consumption of PCM

    E-Print Network [OSTI]

    Zhang, Youtao

    -effective and energy-efficient alternative to traditional DRAM main memory. Due to the high energy consumptionAnalyzing the Impact of Useless Write-Backs on the Endurance and Energy Consumption of PCM Main in considerable energy savings and endurance improvement. In this paper, we introduce the concept of useless write

  16. Logic Analyzer Connectorless Probing Reduces Loading and Footprint Impact on DDR Memory Validation

    E-Print Network [OSTI]

    LaMeres, Brock J.

    Logic Analyzer Connectorless Probing Reduces Loading and Footprint Impact on DDR Memory Validation Brock J. LaMeres Agilent Technologies DDR memory has emerged as the leading technology for in-system DRAM. Verification of DDR systems has also emerged as one of the most challenging and time consuming

  17. Extension of a Negative Binomial GARCH Model: Analyzing the Effects of Gasoline Price and VMT on

    E-Print Network [OSTI]

    Pourahmadi, Mohsen

    Extension of a Negative Binomial GARCH Model: Analyzing the Effects of Gasoline Price and VMT. In addition, the relationship between monthly vehicle miles travelled (VMT) and gasoline prices in Texas was also examined. Ultimately, it is concluded that gasoline prices had no significant effect on DUI fatal

  18. Time-of-flight SIMS/MSRI reflectron mass analyzer and method

    DOE Patents [OSTI]

    Smentkowski, Vincent S. (Clifton Park, NY); Gruen, Dieter M. (Downers Grove, IL); Krauss, Alan R. (Naperville, IL); Schultz, J. Albert (Houston, TX); Holecek, John C. (Colorado Springs, CO)

    1999-12-28

    A method and apparatus for analyzing the surface characteristics of a sample by Secondary Ion Mass Spectroscopy (SIMS) and Mass Spectroscopy of Recoiled Ions (MSRI) is provided. The method includes detecting back scattered primary ions, low energy ejected species, and high energy ejected species by ion beam surface analysis techniques comprising positioning a ToF SIMS/MSRI mass analyzer at a predetermined angle .theta., where .theta. is the angle between the horizontal axis of the mass analyzer and the undeflected primary ion beam line, and applying a specific voltage to the back ring of the analyzer. Preferably, .theta. is less than or equal to about 120.degree. and, more preferably, equal to 74.degree.. For positive ion analysis, the extractor, lens, and front ring of the reflectron are set at negative high voltages (-HV). The back ring of the reflectron is set at greater than about +700V for MSRI measurements and between the range of about +15 V and about +50V for SIMS measurements. The method further comprises inverting the polarity of the potentials applied to the extractor, lens, front ring, and back ring to obtain negative ion SIMS and/or MSRI data.

  19. Use of Mie theory to analyze experimental data to identify infrared properties of fused quartz

    E-Print Network [OSTI]

    Pilon, Laurent

    Use of Mie theory to analyze experimental data to identify infrared properties of fused quartz containing bubbles is suggested. The identification procedure is based on a combi- nation of directional of possible impurity of the medium. This procedure is used to obtain new data on near-infrared properties

  20. BRIDGE Risk Analyzer: A Collaborative Tool for Enhanced Risk Analysis in Crisis Situations1

    E-Print Network [OSTI]

    Stølen, Ketil

    BRIDGE Risk Analyzer: A Collaborative Tool for Enhanced Risk Analysis in Crisis Situations1 Mass to develop a collaborative tool to support risk analysis in crisis situations. The tool will be tightly facility. Keywords: Risk analysis, crisis management 1 Introduction Crisis management is a highly