Sample records for applied systems analysis

  1. applied systems analysis: Topics by E-print Network

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

    Evgeny Katz 2011-10-08 7 A macro-micro system architecture analysis framework applied to Smart Grid meter data management systems by Sooraj Prasannan. MIT - DSpace Summary: This...

  2. Structural Equation Modelling for Causal Analysis Applied to Transport Systems

    E-Print Network [OSTI]

    Schlingloff, Holger

    barrier (SBA), fault tree (FTA) and failure mode and effect analysis (FMEA) into one method. Our approach Analysis (FTA), Failure Mode and Effect Analysis (FMEA), Event Tree Analysis (ETA) or Safety Barrier]). The probably most familiar methods FTA and FMEA are widely used in industry due to their intuitive

  3. Layer of protection analysis applied to ammonia refrigeration systems

    E-Print Network [OSTI]

    Zuniga, Gerald Alexander

    2009-05-15T23:59:59.000Z

    Ammonia refrigeration systems are widely used in industry. Demand of these systems is expected to increase due to the advantages of ammonia as refrigerant and because ammonia is considered a green refrigerant. Therefore, it is important to evaluate...

  4. Parallel processing techniques applied to transient stability analysis of power systems

    E-Print Network [OSTI]

    Balachandra, Chandrakumar John

    1982-01-01T23:59:59.000Z

    : ( airman o Commattee Pv(Hea o Department (Mem er (Mem r (Member) December 1982 ABSTRACT Parallel Processing Techniques Applied 'to Transient Stability in Electric Power Systems. (December 1982) Chandrakumar John Balachandra, Bsc. , University of Sri... manually. 2. Comparision of the computational advantages of the above method with the conventional methods of analysis. Analysis of the same network as before, using the cluster algorithm to define the subnetwork boun- daries Tne same procedure...

  5. A macro-micro system architecture analysis framework applied to Smart Grid meter data management systems by Sooraj Prasannan.

    E-Print Network [OSTI]

    Prasannan, Sooraj

    2010-01-01T23:59:59.000Z

    This thesis proposes a framework for architectural analysis of a system at the Macro and Micro levels. The framework consists of two phases -- Formulation and Analysis. Formulation is made up of three steps -- Identifying ...

  6. Multi-attribute criteria applied to electric generation energy system analysis LDRD.

    SciTech Connect (OSTI)

    Kuswa, Glenn W.; Tsao, Jeffrey Yeenien; Drennen, Thomas E.; Zuffranieri, Jason V.; Paananen, Orman Henrie; Jones, Scott A.; Ortner, Juergen G. (DLR, German Aerospace, Cologne); Brewer, Jeffrey D.; Valdez, Maximo M.

    2005-10-01T23:59:59.000Z

    This report began with a Laboratory-Directed Research and Development (LDRD) project to improve Sandia National Laboratories multidisciplinary capabilities in energy systems analysis. The aim is to understand how various electricity generating options can best serve needs in the United States. The initial product is documented in a series of white papers that span a broad range of topics, including the successes and failures of past modeling studies, sustainability, oil dependence, energy security, and nuclear power. Summaries of these projects are included here. These projects have provided a background and discussion framework for the Energy Systems Analysis LDRD team to carry out an inter-comparison of many of the commonly available electric power sources in present use, comparisons of those options, and efforts needed to realize progress towards those options. A computer aid has been developed to compare various options based on cost and other attributes such as technological, social, and policy constraints. The Energy Systems Analysis team has developed a multi-criteria framework that will allow comparison of energy options with a set of metrics that can be used across all technologies. This report discusses several evaluation techniques and introduces the set of criteria developed for this LDRD.

  7. Energy analysis of facade-integrated photovoltaic systems applied to UAE commercial buildings

    SciTech Connect (OSTI)

    Radhi, Hassan [Architectural Engineering Department, UAE University, Al-ain (United Arab Emirates)

    2010-12-15T23:59:59.000Z

    Developments in the design and manufacture of photovoltaic cells have recently been a growing concern in the UAE. At present, the embodied energy pay-back time (EPBT) is the criterion used for comparing the viability of such technology against other forms. However, the impact of PV technology on the thermal performance of buildings is not considered at the time of EPBT estimation. If additional energy savings gained over the PV system life are also included, the total EPBT could be shorter. This paper explores the variation of the total energy of building integrated photovoltaic systems (BiPV) as a wall cladding system applied to the UAE commercial sector and shows that the ratio between PV output and saving in energy due to PV panels is within the range of 1:3-1:4. The result indicates that for the southern and western facades in the UAE, the embodied energy pay-back time for photovoltaic system is within the range of 12-13 years. When reductions in operational energy are considered, the pay-back time is reduced to 3.0-3.2 years. This study comes to the conclusion that the reduction in operational energy due to PV panels represents an important factor in the estimation of EPBT. (author)

  8. 6.041 / 6.431 Probabilistic Systems Analysis and Applied Probability, Spring 2005

    E-Print Network [OSTI]

    Bertsekas, Dimitri

    This course is offered both to undergraduates (6.041) and graduates (6.431), but the assignments differ. 6.041/6.431 introduces students to the modeling, quantification, and analysis of uncertainty. Topics covered include: ...

  9. Applying epoch-era analysis for homeowner selection of distributed generation power systems

    E-Print Network [OSTI]

    Piña, Alexander L

    2014-01-01T23:59:59.000Z

    The current shift from centralized energy generation to a more distributed model has opened a number of choices for homeowners to provide their own power. While there are a number of systems to purchase, there are no tools ...

  10. Simulating Nationwide Pandemics: Applying the Multi-scale Epidemiologic Simulation and Analysis System to Human Infectious Diseases

    SciTech Connect (OSTI)

    Dombroski, M; Melius, C; Edmunds, T; Banks, L E; Bates, T; Wheeler, R

    2008-09-24T23:59:59.000Z

    This study uses the Multi-scale Epidemiologic Simulation and Analysis (MESA) system developed for foreign animal diseases to assess consequences of nationwide human infectious disease outbreaks. A literature review identified the state of the art in both small-scale regional models and large-scale nationwide models and characterized key aspects of a nationwide epidemiological model. The MESA system offers computational advantages over existing epidemiological models and enables a broader array of stochastic analyses of model runs to be conducted because of those computational advantages. However, it has only been demonstrated on foreign animal diseases. This paper applied the MESA modeling methodology to human epidemiology. The methodology divided 2000 US Census data at the census tract level into school-bound children, work-bound workers, elderly, and stay at home individuals. The model simulated mixing among these groups by incorporating schools, workplaces, households, and long-distance travel via airports. A baseline scenario with fixed input parameters was run for a nationwide influenza outbreak using relatively simple social distancing countermeasures. Analysis from the baseline scenario showed one of three possible results: (1) the outbreak burned itself out before it had a chance to spread regionally, (2) the outbreak spread regionally and lasted a relatively long time, although constrained geography enabled it to eventually be contained without affecting a disproportionately large number of people, or (3) the outbreak spread through air travel and lasted a long time with unconstrained geography, becoming a nationwide pandemic. These results are consistent with empirical influenza outbreak data. The results showed that simply scaling up a regional small-scale model is unlikely to account for all the complex variables and their interactions involved in a nationwide outbreak. There are several limitations of the methodology that should be explored in future work including validating the model against reliable historical disease data, improving contact rates, spread methods, and disease parameters through discussions with epidemiological experts, and incorporating realistic behavioral assumptions.

  11. Systems Theoretic Hazard Analysis (STPA) applied to the risk review of complex systems : an example from the medical device industry

    E-Print Network [OSTI]

    Antoine, Blandine

    2013-01-01T23:59:59.000Z

    Traditional methods to identify and document hazards, and the corresponding safety constraints, are lacking in their ability to account for human, software and sub-system interactions in highly technical systems. STAMP, a ...

  12. Simulation and Analysis for Applying the Double-Stage Coupled Heat Pump System in the Villa of Cold Area 

    E-Print Network [OSTI]

    Yang, L.; Yao, Y.; Ma, Z.

    2006-01-01T23:59:59.000Z

    -to-water double-stage coupled heat pump system, is presented in this paper based on analyzing the characteristics of the villa district heating. Prediction and analysis of the feasibility of the double-stage coupled heat pump system in cold areas were carried...

  13. Simulation and Analysis for Applying the Double-Stage Coupled Heat Pump System in the Villa of Cold Area

    E-Print Network [OSTI]

    Yang, L.; Yao, Y.; Ma, Z.

    2006-01-01T23:59:59.000Z

    -to-water double-stage coupled heat pump system, is presented in this paper based on analyzing the characteristics of the villa district heating. Prediction and analysis of the feasibility of the double-stage coupled heat pump system in cold areas were carried...

  14. Automation of radiochemical analysis by applying flow

    E-Print Network [OSTI]

    Sánchez, David

    of detection systems, including scintillation counting, a-spectrometers, proportional counters, mass spectrometry and spectrophotometry. ª 2010 Published by Elsevier Ltd. Keywords: Flow-analysis technique; Flow

  15. Matrix analysis applied to the equivalent circuits of ?, †, and o-components of three-phase systems

    E-Print Network [OSTI]

    Kuo, Marshall Chuan Yung

    1958-01-01T23:59:59.000Z

    . THE EQUIVALENT CIRCUIT OF d, (5, AND 0 COMPONENTS FOR THE SYSTEMS SHOWN IN FIG. I (a) In Fig. I (a) E, E ~ and E are three balanced terminal voltages a' b' c and the irnpedances Z represents the balanced impedance of a load to which power is delivered. 1... in the following: 0 I I I 0 Ig e 0 j j I 0 0 I (34) I 0 0 I I~ 0 I e I I j 0 I() r I I -lj 0 IO 2 2 (35) D. APPARENT POW'ER QUANTITIES IN TERhfS OF SEQUENCE QUANTITIES The apparent power on the three phases may be expressed as V = Pr + jQq 3( V I + V...

  16. Partial fringe analysis applied to holographic interferometry

    E-Print Network [OSTI]

    Rathbun, Paul Alan

    1990-01-01T23:59:59.000Z

    camera, (with thermoplastic plates), and piezoelectric positioners for imposing displacements was assembled. Fiber optics were used to guide the beams. Double exposure holograms were made for cases of a. cantilevered beam and a plate with clamped...? clamped free ? free boundary conditions with diB'erent applied displacements. 1hese holograms were analyzed using a, high resolution digital image processing system as well as specially written programs for determining out ? of ? plane displacements...

  17. The Applied Mathematics for Power Systems (AMPS)

    SciTech Connect (OSTI)

    Chertkov, Michael [Los Alamos National Laboratory

    2012-07-24T23:59:59.000Z

    Increased deployment of new technologies, e.g., renewable generation and electric vehicles, is rapidly transforming electrical power networks by crossing previously distinct spatiotemporal scales and invalidating many traditional approaches for designing, analyzing, and operating power grids. This trend is expected to accelerate over the coming years, bringing the disruptive challenge of complexity, but also opportunities to deliver unprecedented efficiency and reliability. Our Applied Mathematics for Power Systems (AMPS) Center will discover, enable, and solve emerging mathematics challenges arising in power systems and, more generally, in complex engineered networks. We will develop foundational applied mathematics resulting in rigorous algorithms and simulation toolboxes for modern and future engineered networks. The AMPS Center deconstruction/reconstruction approach 'deconstructs' complex networks into sub-problems within non-separable spatiotemporal scales, a missing step in 20th century modeling of engineered networks. These sub-problems are addressed within the appropriate AMPS foundational pillar - complex systems, control theory, and optimization theory - and merged or 'reconstructed' at their boundaries into more general mathematical descriptions of complex engineered networks where important new questions are formulated and attacked. These two steps, iterated multiple times, will bridge the growing chasm between the legacy power grid and its future as a complex engineered network.

  18. Fourier Analysis and Autocorrelation Function Applied to Periodical Nanostructures

    E-Print Network [OSTI]

    Rockett, Angus

    Fourier Analysis and Autocorrelation Function Applied to Periodical Nanostructures E. Cruz Microscopy (AFM) Image Fast Fourier Transformation Autocorrelation Function(AC) Angular Distribution] Fourier Analysis: analytical and geometrical aspects, Bray William O ed. New York: Marcel Dekker, 1994

  19. Lessons Learned in Applying Formal Concept Analysis to Reverse Engineering

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Lessons Learned in Applying Formal Concept Analysis to Reverse Engineering Gabriela Ar´evalo, St in "International Conference on Formal Concept Analysis (ICFCA '05) (2005)" #12;Lessons Learned in Applying Formal artifacts. In this paper we describe our approach, outline three case studies, and draw various lessons from

  20. TESEC 2001, Genova, Italy ADVANCED TECHNIQUES FOR SAFETY ANALYSIS APPLIED TO

    E-Print Network [OSTI]

    Tronci, Enrico

    TESEC 2001, Genova, Italy 1 ADVANCED TECHNIQUES FOR SAFETY ANALYSIS APPLIED TO THE GAS TURBINE for safety analysis of complex computer based systems. Such approaches are applied to the gas turbine control and electrical power supply of the centre of ENEA CR Casaccia. The plant is based on a small gas turbine and has

  1. Roadmap: Applied Engineering Manufacturing Systems Bachelor of Science

    E-Print Network [OSTI]

    Sheridan, Scott

    Roadmap: Applied Engineering ­ Manufacturing Systems ­ Bachelor of Science [AT 15000 Introduction to Human Communication 3 Fulfills Kent Core Additional Kent Core Requirement 3 See #12;Roadmap: Applied Engineering ­ Manufacturing Systems ­ Bachelor of Science [AT

  2. Neutron activation analysis applied to perspiration electrolytes

    E-Print Network [OSTI]

    McAndrew, Robert Gavin

    1969-01-01T23:59:59.000Z

    . In the choice of the polyethylene sheeting used, nine commercial polyethylene sheets or bags were analyzed for their sodium content by neutron activation analysis. A small sax:. .pie of each material was weighed and then irradiated in the reactor for one... 3. 46 3. 76 4. 2 1. 15 1. 16 . 59 1. 19 1. 82 1. 89 1. 50 . 54 1. 88 . 74 1. 20 1. 29 43 which were irradiated unshielded by cadmium in the center tube of the reactor where the fast neutron flux was much greater than at the reactor...

  3. Applied zooarchaeology: the relevance of faunal analysis to

    E-Print Network [OSTI]

    Wolverton, Steve

    rcalrn of modern wildlife management by applying the knowledge it gains from its unique perspcctivcApplied zooarchaeology: the relevance of faunal analysis to wildlife management R. bee Lagman to define the boundaries of biological preserves meant to prescr~~cbiota in perpetuity are all subjects

  4. Multivariate Mathematical Morphology applied to Color Image Analysis

    E-Print Network [OSTI]

    Lefèvre, Sébastien

    Chapter 10 Multivariate Mathematical Morphology applied to Color Image Analysis 10.1. Introduction analysis framework, currently fully developed for both binary and gray-level images. Its popularity in the image processing community is mainly due to its rigorous mathematical foundation as well as its inherent

  5. Numerical tools applied to power reactor noise analysis Christophe Demazie`re*, Imre Pazsit

    E-Print Network [OSTI]

    Pázsit, Imre

    Review Numerical tools applied to power reactor noise analysis Christophe Demazie`re*, Imre Pa and application of the numerical tools employed. The code that was developed yields the space and non-critical systems with an external source. Some appli- cations of these tools to power reactor

  6. Roadmap: Systems/Industrial Engineering Technology Associate of Applied Science

    E-Print Network [OSTI]

    Sheridan, Scott

    Roadmap: Systems/Industrial Engineering Technology ­ Associate of Applied Science [RE Kent Core Summary below Semester Four: [17 Credit Hours] MERT 22009 Robotics and Flexible Automation 3

  7. Applied Optical Systems | Open Energy Information

    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 onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnualProperty EditCalifornia: Energy Resources JumpAnaconda,Anza ElectricInc Jump to:AppliedOptical

  8. Systems Analysis Workshop Purpose

    Broader source: Energy.gov [DOE]

    Presentation on SAW purpose to the DOE Systems Analysis Workshop held in Washington, D.C. July 28-29, 2004 to discuss and define role of systems analysis in DOE Hydrogen Program.

  9. A Vision for Systems Engineering Applied to Wind Energy (Presentation)

    SciTech Connect (OSTI)

    Felker, F.; Dykes, K.

    2015-01-01T23:59:59.000Z

    This presentation was given at the Third Wind Energy Systems Engineering Workshop on January 14, 2015. Topics covered include the importance of systems engineering, a vision for systems engineering as applied to wind energy, and application of systems engineering approaches to wind energy research and development.

  10. Ris-R-1388(EN) Applied Modal Analysis of Wind

    E-Print Network [OSTI]

    Risø-R-1388(EN) Applied Modal Analysis of Wind Turbine Blades Henrik Broen Pedersen, Ole Jesper for wind turbine blades. Different methods to measure the position and adjust the direction of the meas measurement on the same wind turbine blade. Furthermore the flexibility of the test set-up is investigated

  11. IRRADIANCE MAPS APPLIED FOR THE PERFORMANCE ASSESSMENT OF PV SYSTEMS

    E-Print Network [OSTI]

    Heinemann, Detlev

    IRRADIANCE MAPS APPLIED FOR THE PERFORMANCE ASSESSMENT OF PV SYSTEMS - A CASE STUDY FOR THE GERMAN energy yield of a PV system,methods based on irradiance maps published by weather services or others-connected PV systems. DATA USED Hourly time series from ground and satellite-derived horizontal global

  12. Apply

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office511041cloth DocumentationProductsAlternative FuelsSanta3Appliance andApplicationBerkeleyAppliedApply

  13. Space elevator systems level analysis

    SciTech Connect (OSTI)

    Laubscher, B. E. (Bryan E.)

    2004-01-01T23:59:59.000Z

    The Space Elevator (SE) represents a major paradigm shift in space access. It involves new, untried technologies in most of its subsystems. Thus the successful construction of the SE requires a significant amount of development, This in turn implies a high level of risk for the SE. This paper will present a systems level analysis of the SE by subdividing its components into their subsystems to determine their level of technological maturity. such a high-risk endeavor is to follow a disciplined approach to the challenges. A systems level analysis informs this process and is the guide to where resources should be applied in the development processes. It is an efficient path that, if followed, minimizes the overall risk of the system's development. systems level analysis is that the overall system is divided naturally into its subsystems, and those subsystems are further subdivided as appropriate for the analysis. By dealing with the complex system in layers, the parameter space of decisions is kept manageable. Moreover, A rational way to manage One key aspect of a resources are not expended capriciously; rather, resources are put toward the biggest challenges and most promising solutions. This overall graded approach is a proven road to success. The analysis includes topics such as nanotube technology, deployment scenario, power beaming technology, ground-based hardware and operations, ribbon maintenance and repair and climber technology.

  14. Draft of Preliminary Syllabus Applying Geospatial Analysis-Project Based Learning

    E-Print Network [OSTI]

    Fabrikant, Sara Irina

    Draft of Preliminary Syllabus Applying Geospatial Analysis- Project Based Learning Listed as, and analysis (2) formulate and evaluate research questions relating to geospatial approaches (3) learn geospatial techniques (4) learn data management, data conversion, and data analysis (5) apply geospatial

  15. SUBSURFACE VISUAL ALARM SYSTEM ANALYSIS

    SciTech Connect (OSTI)

    D.W. Markman

    2001-08-06T23:59:59.000Z

    The ''Subsurface Fire Hazard Analysis'' (CRWMS M&O 1998, page 61), and the document, ''Title III Evaluation Report for the Surface and Subsurface Communication System'', (CRWMS M&O 1999a, pages 21 and 23), both indicate the installed communication system is adequate to support Exploratory Studies Facility (ESF) activities with the exception of the mine phone system for emergency notification purposes. They recommend the installation of a visual alarm system to supplement the page/party phone system The purpose of this analysis is to identify data communication highway design approaches, and provide justification for the selected or recommended alternatives for the data communication of the subsurface visual alarm system. This analysis is being prepared to document a basis for the design selection of the data communication method. This analysis will briefly describe existing data or voice communication or monitoring systems within the ESF, and look at how these may be revised or adapted to support the needed data highway of the subsurface visual alarm. system. The existing PLC communication system installed in subsurface is providing data communication for alcove No.5 ventilation fans, south portal ventilation fans, bulkhead doors and generator monitoring system. It is given that the data communication of the subsurface visual alarm system will be a digital based system. It is also given that it is most feasible to take advantage of existing systems and equipment and not consider an entirely new data communication system design and installation. The scope and primary objectives of this analysis are to: (1) Briefly review and describe existing available data communication highways or systems within the ESF. (2) Examine technical characteristics of an existing system to disqualify a design alternative is paramount in minimizing the number of and depth of a system review. (3) Apply general engineering design practices or criteria such as relative cost, and degree of difficulty and complexity in determining requirements in adapting existing data communication highways to support the subsurface visual alarm system. These requirements would include such things as added or new communication cables, added Programmable Logic Controller (PLC), Inputs and Outputs (I/O), and communication hardware components, and human machine interfaces and their software operating system. (4) Select the best data communication highway system based on this review of adapting or integrating with existing data communication systems.

  16. APPLICATIONS OF FOURIER ANALYSIS TO NON-ANALYTIC Abstract. Fourier analysis, a classical topic in analysis, can be applied to

    E-Print Network [OSTI]

    May, J. Peter

    APPLICATIONS OF FOURIER ANALYSIS TO NON-ANALYTIC FIELDS KEVIN QIAN Abstract. Fourier analysis, a classical topic in analysis, can be applied to many nonanalytic fields. This paper explores Fourier analysis in multiple do- mains in order to prove several nonanalytic results. Fourier analysis will be explored

  17. applying energy system: Topics by E-print Network

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

    applying energy system First Page Previous Page 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 California Energy Commission...

  18. Coal systems analysis

    SciTech Connect (OSTI)

    Warwick, P.D. (ed.)

    2005-07-01T23:59:59.000Z

    This collection of papers provides an introduction to the concept of coal systems analysis and contains examples of how coal systems analysis can be used to understand, characterize, and evaluate coal and coal gas resources. Chapter are: Coal systems analysis: A new approach to the understanding of coal formation, coal quality and environmental considerations, and coal as a source rock for hydrocarbons by Peter D. Warwick. Appalachian coal assessment: Defining the coal systems of the Appalachian Basin by Robert C. Milici. Subtle structural influences on coal thickness and distribution: Examples from the Lower Broas-Stockton coal (Middle Pennsylvanian), Eastern Kentucky Coal Field, USA by Stephen F. Greb, Cortland F. Eble, and J.C. Hower. Palynology in coal systems analysis The key to floras, climate, and stratigraphy of coal-forming environments by Douglas J. Nichols. A comparison of late Paleocene and late Eocene lignite depositional systems using palynology, upper Wilcox and upper Jackson Groups, east-central Texas by Jennifer M.K. O'Keefe, Recep H. Sancay, Anne L. Raymond, and Thomas E. Yancey. New insights on the hydrocarbon system of the Fruitland Formation coal beds, northern San Juan Basin, Colorado and New Mexico, USA by W.C. Riese, William L. Pelzmann, and Glen T. Snyder.

  19. A Hygrothermal Risk Analysis Applied to Residential Unvented Attics

    SciTech Connect (OSTI)

    Pallin, Simon B [ORNL] [ORNL; Kehrer, Manfred [ORNL] [ORNL

    2013-01-01T23:59:59.000Z

    Aresidential building, constructed with an unvented attic, is acommonroof assembly in the United States.The expected hygrothermal performance and service life of the roof are difficult to estimate due to a number of varying parameters.Typical parameters expected to vary are the climate, direction, and slope of the roof as well as the radiation properties of the surface material. Furthermore, influential parameters are indoor moisture excess, air leakages through the attic floor, and leakages from air-handling unit and ventilation ducts. In addition, the type of building materials such as the insulation material and closed or open cell spray polyurethane foam will influence the future performance of the roof. A development of a simulation model of the roof assembly will enable a risk and sensitivity analysis, in which the most important varying parameters on the hygrothermal performance can be determined. The model is designed to perform probabilistic simulations using mathematical and hygrothermal calculation tools. The varying input parameters can be chosen from existing measurements, simulations, or standards. An analysis is applied to determine the risk of consequences, such as mold growth, rot, or energy demand of the HVAC unit. Furthermore, the future performance of the roof can be simulated in different climates to facilitate the design of an efficient and reliable roof construction with the most suitable technical solution and to determine the most appropriate building materials for a given climate

  20. Sandia National Laboratories: Systems Analysis

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

    Photovoltaic, Photovoltaic Systems Evaluation Laboratory (PSEL), Renewable Energy, Solar, Solar Newsletter, Systems Analysis The PV Performance Modeling Collaborative (PVPMC)...

  1. Sandia National Laboratories: Systems Analysis

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

    Grid Integration, Infrastructure Security, Microgrid, News, News & Events, Renewable Energy, Systems Analysis, Systems Engineering, Transmission Grid Integration A lot that...

  2. activation analysis applied: Topics by E-print Network

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

    Websites Summary: barrier (SBA), fault tree (FTA) and failure mode and effect analysis (FMEA) into one method. Our approach Analysis (FTA), Failure Mode and Effect Analysis (FMEA),...

  3. analysis naa applied: Topics by E-print Network

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

    Websites Summary: barrier (SBA), fault tree (FTA) and failure mode and effect analysis (FMEA) into one method. Our approach Analysis (FTA), Failure Mode and Effect Analysis (FMEA),...

  4. Systemic toxicity of dermally applied crude oils in rats

    SciTech Connect (OSTI)

    Feuston, M.H.; Mackerer, C.R.; Schreiner, C.A.; Hamilton, C.E. [Stonybrook Labs., Inc., Princeton, NJ (United States)] [Stonybrook Labs., Inc., Princeton, NJ (United States)

    1997-12-31T23:59:59.000Z

    Two crude oils, differing in viscosity (V) and nitrogen (N) and sulfur (S) content, were evaluated for systemic toxicity, In the Crude I (low V, low N, low S) study, the material was applied to the clipped backs of rats at dose levels of 0, 30, 125, and 500 mg/kg. In the Crude II (high V, high N, moderate S) study, the oil was applied similarly at the same dose levels. The crude oils were applied for 13 wk, 5 d/wk. Exposure sites were not occluded. Mean body weight gain (wk 1-14) was significantly reduced in male rats exposed to Crude II; body weight gain of all other animals was not adversely affected by treatment. An increase in absolute (A) and relative (R) liver weights and a decrease in A and R thymus weights were observed in male and female rats exposed to Crude II at 500 mg/kg; only liver weights (A and R) were adversely affected in male and female rats exposed to Crude I. In general, there was no consistent pattern of toxicity for serum chemistry endpoints; however, more parameters were adversely affected in Crude II-exposed female rats than in the other exposed groups. A consistent pattern of toxicity for hematology endpoints was observed among male rats exposed to Crude I and male and female rats exposed to Crude II. Parameters affected included: Crudes I and II, red blood cell count, hemoglobin, and hematocrit, Crude II, platelet count. Microscopic evaluation of tissues revealed the following treatment-related findings: Crude I, treated skin, thymus, and thyroid; Crude II, bone marrow, treated skin, thymus, and thyroid. The LOEL (lowest observable effect level) for skin irritation and systemic toxicity (based on marginal effects on the thyroid) for both crude oils was 30 mg/kg; effects were more numerous and more pronounced in animals exposed to Crude II. Systemic effects are probably related to concentrations of polycyclic aromatic compounds (PAC) found in crude oil.

  5. To Apply or Not to Apply: A Survey Analysis of Grant Writing Costs and Benefits

    E-Print Network [OSTI]

    von Hippel, Ted

    2015-01-01T23:59:59.000Z

    We surveyed 113 astronomers and 82 psychologists active in applying for federally funded research on their grant-writing history between January, 2009 and November, 2012. We collected demographic data, effort levels, success rates, and perceived non-financial benefits from writing grant proposals. We find that the average proposal takes 116 PI hours and 55 CI hours to write; although time spent writing was not related to whether the grant was funded. Effort did translate into success, however, as academics who wrote more grants received more funding. Participants indicated modest non-monetary benefits from grant writing, with psychologists reporting a somewhat greater benefit overall than astronomers. These perceptions of non-financial benefits were unrelated to how many grants investigators applied for, the number of grants they received, or the amount of time they devoted to writing their proposals. We also explored the number of years an investigator can afford to apply unsuccessfully for research grants a...

  6. applying performance analysis: Topics by E-print Network

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

    with the Vampir performance analysis tool suite that examines the application behavior as well as the fundamental. The performance analysis tool suite Vampir is used to gain deeper...

  7. Model Driven Mutation Applied to Adaptative Systems Testing

    E-Print Network [OSTI]

    Bartel, Alexandre; Munoz, Freddy; Klein, Jacques; Mouelhi, Tejeddine; Traon, Yves Le

    2012-01-01T23:59:59.000Z

    Dynamically Adaptive Systems modify their behav- ior and structure in response to changes in their surrounding environment and according to an adaptation logic. Critical sys- tems increasingly incorporate dynamic adaptation capabilities; examples include disaster relief and space exploration systems. In this paper, we focus on mutation testing of the adaptation logic. We propose a fault model for adaptation logics that classifies faults into environmental completeness and adaptation correct- ness. Since there are several adaptation logic languages relying on the same underlying concepts, the fault model is expressed independently from specific adaptation languages. Taking benefit from model-driven engineering technology, we express these common concepts in a metamodel and define the operational semantics of mutation operators at this level. Mutation is applied on model elements and model transformations are used to propagate these changes to a given adaptation policy in the chosen formalism. Preliminary resul...

  8. applying systems engineering: Topics by E-print Network

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

    Elective 3 Engineering Technology courses Sheridan, Scott 9 Applied and Engineering Physics Materials Science Websites Summary: Applied and Engineering Physics Masters...

  9. ELECTRICITY CASE: RISK ANALYSIS OF INFRASTRUCTURE SYSTEMS-DIFFERENT

    E-Print Network [OSTI]

    Wang, Hai

    of infrastructure systems. The discussion is applied to electric power delivery systems, i.e. transmissionELECTRICITY CASE: RISK ANALYSIS OF INFRASTRUCTURE SYSTEMS-DIFFERENT APPROACHES FOR RISK ANALYSIS OF ELECTRIC POWER SYSTEMS Holmgren, A. CREATE REPORT Under FEMA Grant EMW-2004-GR-0112 May 31, 2005 Center

  10. Measurement uncertainty analysis techniques applied to PV performance measurements

    SciTech Connect (OSTI)

    Wells, C.

    1992-10-01T23:59:59.000Z

    The purpose of this presentation is to provide a brief introduction to measurement uncertainty analysis, outline how it is done, and illustrate uncertainty analysis with examples drawn from the PV field, with particular emphasis toward its use in PV performance measurements. The uncertainty information we know and state concerning a PV performance measurement or a module test result determines, to a significant extent, the value and quality of that result. What is measurement uncertainty analysis It is an outgrowth of what has commonly been called error analysis. But uncertainty analysis, a more recent development, gives greater insight into measurement processes and tests, experiments, or calibration results. Uncertainty analysis gives us an estimate of the I interval about a measured value or an experiment's final result within which we believe the true value of that quantity will lie. Why should we take the time to perform an uncertainty analysis A rigorous measurement uncertainty analysis: Increases the credibility and value of research results; allows comparisons of results from different labs; helps improve experiment design and identifies where changes are needed to achieve stated objectives (through use of the pre-test analysis); plays a significant role in validating measurements and experimental results, and in demonstrating (through the post-test analysis) that valid data have been acquired; reduces the risk of making erroneous decisions; demonstrates quality assurance and quality control measures have been accomplished; define Valid Data as data having known and documented paths of: Origin, including theory; measurements; traceability to measurement standards; computations; uncertainty analysis of results.

  11. Proceedings of: X Convegno Tecnologie e Sistemi Energetici Complessi, (TESEC), June 2001, Genova, Italy ADVANCED TECHNIQUES FOR SAFETY ANALYSIS APPLIED TO

    E-Print Network [OSTI]

    Tronci, Enrico

    , Italy 1 ADVANCED TECHNIQUES FOR SAFETY ANALYSIS APPLIED TO THE GAS TURBINE CONTROL SYSTEM OF ICARO CO of complex computer based systems. Such approaches are applied to the gas turbine control system of ICARO co of the centre of ENEA CR Casaccia. The plant is based on a small gas turbine and has been specifically designed

  12. applying analysis technology: Topics by E-print Network

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

    Informationstechnologie; In Der Medizin; Thomas M. Lehmann Klaus Spitzer 110 Technology assessment and market analysis of solid state ultracapacitors . Open Access...

  13. applying geostatistical analysis: Topics by E-print Network

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

    from Fan, Jeffrey 5 Geostatistical analysis of soil moisture variability on Da Nangou Environmental Management and Restoration Websites Summary: of environmental issues related...

  14. Can Artificial Neural Networks be Applied in Seismic Predicition? Preliminary Analysis Applying Radial Topology. Case: Mexico

    E-Print Network [OSTI]

    Mota-Hernandez, Cinthya; Alvarado-Corona, Rafael

    2014-01-01T23:59:59.000Z

    Tectonic earthquakes of high magnitude can cause considerable losses in terms of human lives, economic and infrastructure, among others. According to an evaluation published by the U.S. Geological Survey, 30 is the number of earthquakes which have greatly impacted Mexico from the end of the XIX century to this one. Based upon data from the National Seismological Service, on the period between January 1, 2006 and May 1, 2013 there have occurred 5,826 earthquakes which magnitude has been greater than 4.0 degrees on the Richter magnitude scale (25.54% of the total of earthquakes registered on the national territory), being the Pacific Plate and the Cocos Plate the most important ones. This document describes the development of an Artificial Neural Network (ANN) based on the radial topology which seeks to generate a prediction with an error margin lower than 20% which can inform about the probability of a future earthquake one of the main questions is: can artificial neural networks be applied in seismic forecast...

  15. Measurement uncertainty analysis techniques applied to PV performance measurements

    SciTech Connect (OSTI)

    Wells, C.

    1992-10-01T23:59:59.000Z

    The purpose of this presentation is to provide a brief introduction to measurement uncertainty analysis, outline how it is done, and illustrate uncertainty analysis with examples drawn from the PV field, with particular emphasis toward its use in PV performance measurements. The uncertainty information we know and state concerning a PV performance measurement or a module test result determines, to a significant extent, the value and quality of that result. What is measurement uncertainty analysis? It is an outgrowth of what has commonly been called error analysis. But uncertainty analysis, a more recent development, gives greater insight into measurement processes and tests, experiments, or calibration results. Uncertainty analysis gives us an estimate of the I interval about a measured value or an experiment`s final result within which we believe the true value of that quantity will lie. Why should we take the time to perform an uncertainty analysis? A rigorous measurement uncertainty analysis: Increases the credibility and value of research results; allows comparisons of results from different labs; helps improve experiment design and identifies where changes are needed to achieve stated objectives (through use of the pre-test analysis); plays a significant role in validating measurements and experimental results, and in demonstrating (through the post-test analysis) that valid data have been acquired; reduces the risk of making erroneous decisions; demonstrates quality assurance and quality control measures have been accomplished; define Valid Data as data having known and documented paths of: Origin, including theory; measurements; traceability to measurement standards; computations; uncertainty analysis of results.

  16. Loosely Annotated Bibiolography: recommended by Applied Environmental Decision Analysis researchers (June-July 2011) and

    E-Print Network [OSTI]

    Loosely Annotated Bibiolography: recommended by Applied Environmental Decision Analysis researchers-structured models are even more likely to collapse. Risks and decisions for conservation and environmental management (Burgman and Possingham 2000) Population Viability Analysis (PVA) is a useful tool

  17. Loosely Annotated Bibiolography: recommended by Applied Environmental Decision Analysis researchers (June-July 2011)

    E-Print Network [OSTI]

    Loosely Annotated Bibiolography: recommended by Applied Environmental Decision Analysis researchers to collapse. Risks and decisions for conservation and environmental management (Burgman and Possingham 2000) Population Viability Analysis (PVA) is a useful tool for conservation planning and population management

  18. Utility concepts applied to the socio-economic subregionization analysis

    E-Print Network [OSTI]

    Hsieh, Joseph Ching-Huei

    1973-01-01T23:59:59.000Z

    and, can be grouped into a single factor. These factors usually are independent of one another and may readily be used. to represent all the essential information of the original set of varia- bles. The reduction of the number of variables can... the most important information contained in the original data. As pointed out by Hummel, factor analysis has 40 these distinguishing characteristics: 1 . Factor analysis can separate the interrela- tionship among the phenomena into functional patterns...

  19. Sandia Energy - Transportation Energy Systems Analysis

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

    Transportation Energy Systems Analysis Home Transportation Energy Predictive Simulation of Engines Transportation Energy Systems Analysis Transportation Energy Systems AnalysisTara...

  20. Current Human Reliability Analysis Methods Applied to Computerized Procedures

    SciTech Connect (OSTI)

    Ronald L. Boring

    2012-06-01T23:59:59.000Z

    Computerized procedures (CPs) are an emerging technology within nuclear power plant control rooms. While CPs have been implemented internationally in advanced control rooms, to date no US nuclear power plant has implemented CPs in its main control room (Fink et al., 2009). Yet, CPs are a reality of new plant builds and are an area of considerable interest to existing plants, which see advantages in terms of enhanced ease of use and easier records management by omitting the need for updating hardcopy procedures. The overall intent of this paper is to provide a characterization of human reliability analysis (HRA) issues for computerized procedures. It is beyond the scope of this document to propose a new HRA approach or to recommend specific methods or refinements to those methods. Rather, this paper serves as a review of current HRA as it may be used for the analysis and review of computerized procedures.

  1. Analysis Models and Tools: Systems Analysis of Hydrogen and Fuel...

    Office of Environmental Management (EM)

    and Fuel Cells Analysis Models and Tools: Systems Analysis of Hydrogen and Fuel Cells The Fuel Cell Technologies Office's systems analysis program uses a consistent set of models...

  2. Grid embedment as applied to viscous transonic airfoil flowfield analysis

    E-Print Network [OSTI]

    Reed, Christopher L.

    1981-01-01T23:59:59.000Z

    Journal, Vol. 18, No. 1, January, 1980, pp, 103-109. 6. Carlson, L. A. , "Inverse Transonic Airfoil Design Including Viscous Interaction, " NASA CP-2001, Vol. 4, 1976, pp. 1387-1395. 7. Steger, J. L. , and Lomax, H. , "Transonic Flow about Two... Mechanics, 1975, pp. 384-414. 9. Carlson, L. A. , "Transonic Airfoil Analysis and Design Using Cartesian Coordinates, " AIAA Journal of Aircraft, Vol. 13, No. 5, May, 1976, pp. 349-356. 10. White, Frank M. , Viscous Fluid Flow, McGraw-Hill, New York...

  3. Process Cooling Pumping Systems Analysis

    E-Print Network [OSTI]

    Sherman, C.

    2008-01-01T23:59:59.000Z

    An analysis of the mill water pumping systems at a North American manufacturing facility was conducted late las year and the following issues were observed: 1. Overpumping – Both systems were overpumped to a significant degree against...

  4. Lectures on Applied Mathematics Part 2: Numerical Analysis

    E-Print Network [OSTI]

    Bowen, Ray M.

    2015-03-24T23:59:59.000Z

    of Linear Equations………………………………… 591 Section 7.3 Additional MATLAB Related Matrix Operations…………… 595 Section 7.4 Ill Conditioned Matrices……………………………………… 611 Section 7.5 Additional Discussion of LU Decomposition.………………... 621 Section 7.6 Additional....2 MATLAB’s fzero Command…………………………….. 679 Section 9.3 Bracketing Methods………………………………………… 683 Section 9.4 The Newton-Raphson Method……………………………… 705 Section 9.5 Systems of Nonlinear Equations……………………………. 715 Section 9.6 Polynomials...

  5. Lectures on Applied Mathematics Part 2: Numerical Analysis 

    E-Print Network [OSTI]

    Bowen, Ray M.

    2015-03-24T23:59:59.000Z

    of Linear Equations………………………………… 591 Section 7.3 Additional MATLAB Related Matrix Operations…………… 595 Section 7.4 Ill Conditioned Matrices……………………………………… 611 Section 7.5 Additional Discussion of LU Decomposition.………………... 621 Section 7.6 Additional....2 MATLAB’s fzero Command…………………………….. 679 Section 9.3 Bracketing Methods………………………………………… 683 Section 9.4 The Newton-Raphson Method……………………………… 705 Section 9.5 Systems of Nonlinear Equations……………………………. 715 Section 9.6 Polynomials...

  6. SMACS. Probabilistic Seismic Analysis System

    SciTech Connect (OSTI)

    Johnson, J.J.; Maslenikov, O.R.; Tiong, L.W.; Mraz, M.J. [EQE Incorporated, San Ramon, CA (United States); Bumpus, S.; Gerhard, M.A. [Lawrence Livermore National Lab., CA (United States)

    1992-01-14T23:59:59.000Z

    The SMACS (Seismic Methodology Analysis Chain with Statistics) system of computer programs is one of the major computational tools of the U.S. NRC Seismic Safety Margins Research Program (SSMRP). SMACS is comprised of the core program SMAX, which performs the SSI response analyses, five preprocessing programs, and two postprocessors. The preprocessing programs include: GLAY and CLAN, which generate the nominal impedance matrices and wave scattering vectors for surface-founded structures; INSSIN, which projects the dynamic properties of structures to the foundation in the form of modal participation factors and mass matrices; SAPPAC, which projects the dynamic and pseudostatic properties of multiply-supported piping systems to the support locations, and LNGEN, which can be used to generate the multiplication factors to be applied to the nominal soil, structural, and subsystem properties for each of the response calculations in accounting for random variations of these properties. The postprocessors are: PRESTO, which performs statistical operations on the raw data from the response vectors that SMAX produces to calculate best fit lognormal distributions for each response location, and CHANGO, which manipulates the data produced by PRESTO to produce other results of interest to the user. Also included is the computer program SAP4 (a modified version of the University of California, Berkeley SAPIV program), a general linear structural analysis program used for eigenvalue extractions and pseudostatic mode calculations of the models of major structures and subsystems. SAP4 is used to prepare input to the INSSIN and SAPPAC preprocessing programs. The GLAY and CLAN programs were originally developed by J.E. Luco (UCSD) and H.L. Wong (USC).

  7. Natural language interface and database issues in applying expert systems to power systems

    SciTech Connect (OSTI)

    Rumpel, D.; Krost, G. (Univ. of Duisburg Gesamthochschule, Elektrische Anlagen und Netze, 4100 Duisburg 1 (DE))

    1992-05-01T23:59:59.000Z

    Applying expert systems (ES's) to power system operation means imbedding them in an existing environment which consists of computational facilities (SCADA, EMS) on one side, and the operating staff on the other side. To that aim, an interface between process data and ES data is required. Further, for an unambiguous and clear information exchange with, and good acceptance by , the operators and approximate natural language dialog of the ES is desirable. In this paper, several approaches to these problems are described.

  8. The Handbook of Applied Bayesian Analysis, Eds: Tony O'Hagan & Mike West, Oxford University Bayesian analysis and decisions in nuclear power plant

    E-Print Network [OSTI]

    Morton, David

    Bayesian analysis and decisions in nuclear power plant maintenance Elmira Popova, David Morton, Paul Damien are then applied to solving an important problem in a nuclear power plant system at the South Texas Project (STP) Electric Generation Station. STP is one of the newest and largest nuclear power plants in the US

  9. Equipment pressure applied to geomembrane in composite liner system

    E-Print Network [OSTI]

    presents the results of a test pad at an operating municipal solid waste landfill that measured pressures at most landfill sites. In particular, a dozer is usually used to place the leachate collection the results of a test pad at an operating landfill used to measure the pressures applied to the primary

  10. The Ford-Pfenning Quantum Inequalities(QI) Analysis applied to the Natario Warp Drive Spacetime.

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    The Ford-Pfenning Quantum Inequalities(QI) Analysis applied to the Natario Warp Drive Spacetime-called Quantum Inequalities(QI) that restricts the time we can observe the negative energy density.This time

  11. LASER SCANNING AND NOISE REDUCTION APPLIED TO 3D ROAD SURFACE ANALYSIS

    E-Print Network [OSTI]

    Giger, Christine

    LASER SCANNING AND NOISE REDUCTION APPLIED TO 3D ROAD SURFACE ANALYSIS Thorsten Schulz and Hilmar, EAWAG Email: michele.steiner@eawag.ch Abstract: Terrestrial laser scanning was applied to acquire 3D the catchment area of a road with respect to a pilot plant. As laser scanning requires only a few minutes

  12. Integrated systems analysis of the PIUS reactor

    SciTech Connect (OSTI)

    Fullwood, F.; Kroeger, P.; Higgins, J. [Brookhaven National Lab., Upton, NY (United States)] [and others

    1993-11-01T23:59:59.000Z

    Results are presented of a systems failure analysis of the PIUS plant systems that are used during normal reactor operation and postulated accidents. This study was performed to provide the NRC with an understanding of the behavior of the plant. The study applied two diverse failure identification methods, Failure Modes Effects & Criticality Analysis (FMECA) and Hazards & Operability (HAZOP) to the plant systems, supported by several deterministic analyses. Conventional PRA methods were also used along with a scheme for classifying events by initiator frequency and combinations of failures. Principal results of this study are: (a) an extensive listing of potential event sequences, grouped in categories that can be used by the NRC, (b) identification of support systems that are important to safety, and (c) identification of key operator actions.

  13. The cognitive/sensorimotor distinction or Glover's three-part distinction can be applied to the oculomotor system, as Glover

    E-Print Network [OSTI]

    Jegelka, Stefanie

    The cognitive/sensorimotor distinction or Glover's three-part distinction can be applied to the oculomotor system, as Glover notes. A first step in this analysis is to differentiate planning and control. In this sense we agree with Glover that there are probably differences between the use of information

  14. Miniaturized flow injection analysis system

    DOE Patents [OSTI]

    Folta, James A. (Livermore, CA)

    1997-01-01T23:59:59.000Z

    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. Applying Innovation System Concept in Agricultural Research for...

    Open Energy Info (EERE)

    The R&D system should think in terms of contributing to innovation. The Improving Productivity & Market Success of Ethiopian Farmers (IPMS) project is fully cognizant of this...

  16. Quantitative Languages for Complex Systems Applied to Biological Structure

    E-Print Network [OSTI]

    representations of the system. We illustrate the development of such languages using the structure of Drosophila this problem as well as to promote the study of complex systems as a systematic discipline, we seek to develop, life cycle stages, mutant abnormalities, gene expression patterns, genetic interactions, etc. In order

  17. An applied study using systems engineering methods to prioritize green systems options

    SciTech Connect (OSTI)

    Lee, Sonya M [Los Alamos National Laboratory; Macdonald, John M [Los Alamos National Laboratory

    2009-01-01T23:59:59.000Z

    For many years, there have been questions about the effectiveness of applying different green solutions. If you're building a home and wish to use green technologies, where do you start? While all technologies sound promising, which will perform the best over time? All this has to be considered within the cost and schedule of the project. The amount of information available on the topic can be overwhelming. We seek to examine if Systems Engineering methods can be used to help people choose and prioritize technologies that fit within their project and budget. Several methods are used to gain perspective into how to select the green technologies, such as the Analytic Hierarchy Process (AHP) and Kepner-Tregoe. In our study, subjects applied these methods to analyze cost, schedule, and trade-offs. Results will document whether the experimental approach is applicable to defining system priorities for green technologies.

  18. Applying New Network Security Technologies to SCADA Systems.

    SciTech Connect (OSTI)

    Hurd, Steven A.; Stamp, Jason E. [Sandia National Laboratories, Albuquerque, NM] [Sandia National Laboratories, Albuquerque, NM; Duggan, David P. [Sandia National Laboratories, Albuquerque, NM] [Sandia National Laboratories, Albuquerque, NM; Chavez, Adrian R. [Sandia National Laboratories, Albuquerque, NM] [Sandia National Laboratories, Albuquerque, NM

    2006-11-01T23:59:59.000Z

    Supervisory Control and Data Acquisition (SCADA) systems for automation are very important for critical infrastructure and manufacturing operations. They have been implemented to work in a number of physical environments using a variety of hardware, software, networking protocols, and communications technologies, often before security issues became of paramount concern. To offer solutions to security shortcomings in the short/medium term, this project was to identify technologies used to secure %22traditional%22 IT networks and systems, and then assess their efficacy with respect to SCADA systems. These proposed solutions must be relatively simple to implement, reliable, and acceptable to SCADA owners and operators. 4This page intentionally left blank.

  19. Studying the Cost and Value of Library and Information Services: Applying Functional Cost Analysis

    E-Print Network [OSTI]

    analysis method, and presents selected data gathered from a larger study on the costs and value of various data on the cost of accessto electronic sourcesvia different accessmodes; on the patterns of useStudying the Cost and Value of Library and Information Services: Applying Functional Cost Analysis

  20. Multi-agent cooperative systems applied to precision applications

    SciTech Connect (OSTI)

    McKay, M.D.; Anderson, M.O. [Lockheed Idaho Technologies Co., Idaho Falls, ID (United States); Gunderson, R.W.; Flann, N.; Abbott, B. [Utah State Univ., Logan, UT (United States)

    1998-03-01T23:59:59.000Z

    Regulatory agencies are imposing limits and constraints to protect the operator and/or the environment. While generally necessary, these controls also tend to increase cost and decrease efficiency and productivity. Intelligent computer systems can be made to perform these hazardous tasks with greater efficiency and precision without danger to the operators. The Idaho national Engineering and Environmental Laboratory and the Center for Self-Organizing and Intelligent Systems at Utah State University have developed a series of autonomous all-terrain multi-agent systems capable of performing automated tasks within hazardous environments. This paper discusses the development and application of cooperative small-scale and large-scale robots for use in various activities associated with radiologically contaminated areas, prescription farming, and unexploded ordinances.

  1. NETL: SOFC Systems Analysis

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Saleshttp://www.fnal.gov/directorate/nalcal/nalcal02_07_05_files/nalcal.gif Directorate1, Issue 23 NETL ScientistFeed SystemsSystems

  2. Applying UML and MDA to Real Systems Design

    E-Print Network [OSTI]

    Oliver, Ian

    2011-01-01T23:59:59.000Z

    Traditionally system design has been made from a black box/functionality only perspective which forces the developer to concentrate on how the functionality can be decomposed and recomposed into so called components. While this technique is well established and well known it does suffer fromsome drawbacks; namely that the systems produced can often be forced into certain, incompatible architectures, difficult to maintain or reuse and the code itself difficult to debug. Now that ideas such as the OMG's Model Based Architecture (MDA) or Model Based Engineering (MBE) and the ubiquitous modelling language UML are being used (allegedly) and desired we face a number of challenges to existing techniques.

  3. Dynamic programming applied to maximizing traffic flow in parallel systems

    E-Print Network [OSTI]

    Anderson, Gerald Lee

    1967-01-01T23:59:59.000Z

    Solution of the problem The Triple-Route Model 33 CHAPTER I INTRODUCTION The control of traffic flow and congestion in freeway systems is a matter of increasing importance at a time when it. has become evident that it is impossible to construct... enough urban highway- to satisfy all of the traffic demand. It is necessary to seek ways to make more efficient u. e of existing freeways. Nattleworth (1, 2) and others (3, 4, 5, 6) have discussed various aspects of the control of freeway systems...

  4. Dynamical Analysis of a Networked Control System

    E-Print Network [OSTI]

    Guofeng Zhang; Guanrong Chen; Tongwen Chen; Maria D'Amico

    2014-05-18T23:59:59.000Z

    A new network data transmission strategy was proposed in Zhang \\& Chen [2005] (arXiv:1405.2404), where the resulting nonlinear system was analyzed and the effectiveness of the transmission strategy was demonstrated via simulations. In this paper, we further generalize the results of Zhang \\& Chen [2005] in the following ways: 1) Construct first-return maps of the nonlinear systems formulated in Zhang \\& Chen [2005] and derive several existence conditions of periodic orbits and study their properties. 2) Formulate the new system as a hybrid system, which will ease the succeeding analysis. 3) Prove that this type of hybrid systems is not structurally stable based on phase transition which can be applied to higher-dimensional cases effortlessly. 4) Simulate a higher-dimensional model with emphasis on their rich dynamics. 5) Study a class of continuous-time hybrid systems as the counterparts of the discrete-time systems discussed above. 6) Propose new controller design methods based on this network data transmission strategy to improve the performance of each individual system and the whole network. We hope that this research and the problems posed here will rouse interests of researchers in such fields as control, dynamical systems and numerical analysis.

  5. ADVANCED POWER SYSTEMS ANALYSIS TOOLS

    SciTech Connect (OSTI)

    Robert R. Jensen; Steven A. Benson; Jason D. Laumb

    2001-08-31T23:59:59.000Z

    The use of Energy and Environmental Research Center (EERC) modeling tools and improved analytical methods has provided key information in optimizing advanced power system design and operating conditions for efficiency, producing minimal air pollutant emissions and utilizing a wide range of fossil fuel properties. This project was divided into four tasks: the demonstration of the ash transformation model, upgrading spreadsheet tools, enhancements to analytical capabilities using the scanning electron microscopy (SEM), and improvements to the slag viscosity model. The ash transformation model, Atran, was used to predict the size and composition of ash particles, which has a major impact on the fate of the combustion system. To optimize Atran key factors such as mineral fragmentation and coalescence, the heterogeneous and homogeneous interaction of the organically associated elements must be considered as they are applied to the operating conditions. The resulting model's ash composition compares favorably to measured results. Enhancements to existing EERC spreadsheet application included upgrading interactive spreadsheets to calculate the thermodynamic properties for fuels, reactants, products, and steam with Newton Raphson algorithms to perform calculations on mass, energy, and elemental balances, isentropic expansion of steam, and gasifier equilibrium conditions. Derivative calculations can be performed to estimate fuel heating values, adiabatic flame temperatures, emission factors, comparative fuel costs, and per-unit carbon taxes from fuel analyses. Using state-of-the-art computer-controlled scanning electron microscopes and associated microanalysis systems, a method to determine viscosity using the incorporation of grey-scale binning acquired by the SEM image was developed. The image analysis capabilities of a backscattered electron image can be subdivided into various grey-scale ranges that can be analyzed separately. Since the grey scale's intensity is dependent on the chemistry of the particle, it is possible to map chemically similar areas which can also be related to the viscosity of that compound at temperature. A second method was also developed to determine the elements associated with the organic matrix of the coals, which is currently determined by chemical fractionation. Mineral compositions and mineral densities can be determined for both included and excluded minerals, as well as the fraction of the ash that will be represented by that mineral on a frame-by-frame basis. The slag viscosity model was improved to provide improved predictions of slag viscosity and temperature of critical viscosity for representative Powder River Basin subbituminous and lignite coals.

  6. Proceedings of Symposia in Applied Mathematics Construction of Conservative Systems

    E-Print Network [OSTI]

    Kogan, Irina

    .1). We are interested in what freedom one has in prescribing such eigenfields. Given n vector fields, we fields are the eigenfields of Df(u). If there exist such systems we are also interested in knowing how), . . . , Li n(u) . (A superscript T denotes transpose.) We refer to the Ri(u) as the eigenfields

  7. Mining Feature Importance: Applying Evolutionary Algorithms within a Web-based Educational System

    E-Print Network [OSTI]

    Mining Feature Importance: Applying Evolutionary Algorithms within a Web-based Educational System@lite.msu.edu http://www.lon-capa.org ABSTRACT A key objective of data mining is to uncover the hidden relationships-based educational systems collect vast amounts of data on user patterns, and data mining methods can be applied

  8. The ALICE analysis train system

    E-Print Network [OSTI]

    Markus Zimmermann; for the ALICE collaboration

    2015-02-23T23:59:59.000Z

    In the ALICE experiment hundreds of users are analyzing big datasets on a Grid system. High throughput and short turn-around times are achieved by a centralized system called the LEGO trains. This system combines analysis from different users in so-called analysis trains which are then executed within the same Grid jobs thereby reducing the number of times the data needs to be read from the storage systems. The centralized trains improve the performance, the usability for users and the bookkeeping in comparison to single user analysis. The train system builds upon the already existing ALICE tools, i.e. the analysis framework as well as the Grid submission and monitoring infrastructure. The entry point to the train system is a web interface which is used to configure the analysis and the desired datasets as well as to test and submit the train. Several measures have been implemented to reduce the time a train needs to finish and to increase the CPU efficiency.

  9. Kron`s reduction method applied to the time stepping finite element analysis of induction machines

    SciTech Connect (OSTI)

    Degeneff, R.C.; Gutierrez, M.R.; Salon, S.J.; Burow, D.W. [Rensselaer Polytechnic Inst., Troy, NY (United States). Electric Power Engineering Dept.] [Rensselaer Polytechnic Inst., Troy, NY (United States). Electric Power Engineering Dept.; Nevins, R.J. [Martin Marietta Corp., Schenectady, NY (United States)] [Martin Marietta Corp., Schenectady, NY (United States)

    1995-12-01T23:59:59.000Z

    The behavior of large induction motors during transient as well as steady state running conditions is of significant interest to the power industry. A variety of analytical predictive tools are employed to aid the design and predict their operation under transient and steady state conditions. One of the most powerful method for investigating the transient behavior of induction machines is a coupled time stepping finite element analysis which can combine electromagnetic fields, circuits and mechanical systems. Due to the complexity of the finite element induction machine model and the resulting large number of describing equations, the computation time required for such programs to solve practical problems becomes a major limitation. This becomes even more of a concern when different design options or operating scenarios are evaluated. This paper presents a strategy to reduce the required running time in order to make a parametric study of induction machines such as the assessment of different design options feasible. This is accomplished by reducing the number of finite element equations that must be solved while maintaining the same level of accuracy of solutions. This method is based on Kron`s network reduction work for linear systems and has successfully been applied to large lumped parameter model of transformers. This paper illustrates the reduction method by comparing the flux density in the air gap for a complete FEM model of an induction machine to that of the reduced model. The results are essentially identical with a reduction in computational time of approximately 71%.

  10. System and method of applying energetic ions for sterilization

    DOE Patents [OSTI]

    Schmidt, John A.

    2003-12-23T23:59:59.000Z

    A method of sterilization of a container is provided whereby a cold plasma is caused to be disposed near a surface to be sterilized, and the cold plasma is then subjected to a pulsed voltage differential for producing energized ions in the plasma. Those energized ions then operate to achieve spore destruction on the surface to be sterilized. Further, a system for sterilization of a container which includes a conductive or non-conductive container, a cold plasma in proximity to the container, and a high voltage source for delivering a pulsed voltage differential between an electrode and the container and across the cold plasma, is provided.

  11. System And Method Of Applying Energetic Ions For Sterlization

    DOE Patents [OSTI]

    Schmidt, John A. (Princeton, NJ)

    2002-06-11T23:59:59.000Z

    A method of sterilization of a container is provided whereby a cold plasma is caused to be disposed near a surface to be sterilized, and the cold plasma is then subjected to a pulsed voltage differential for producing energized ions in the plasma. Those energized ions then operate to achieve spore destruction on the surface to be sterilized. Further, a system for sterilization of a container which includes a conductive or non-conductive container, a cold plasma in proximity to the container, and a high voltage source for delivering a pulsed voltage differential between an electrode and the container and across the cold plasma, is provided.

  12. Electron Spectrometer: Scanning Multiprobe Surface Analysis System...

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

    Scanning Multiprobe Surface Analysis System - Versaprobe Electron Spectrometer: Scanning Multiprobe Surface Analysis System - Versaprobe The SMSAS is a multi-technique surface...

  13. Integrated Vehicle Thermal Management Systems (VTMS) Analysis...

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

    Systems (VTMS) AnalysisModeling Integrated Vehicle Thermal Management Systems (VTMS) AnalysisModeling 2009 DOE Hydrogen Program and Vehicle Technologies Program Annual Merit...

  14. Experimental ferrite core circuit analysis and design applied to an analog/digital converter

    E-Print Network [OSTI]

    Hughes, Robert William

    1965-01-01T23:59:59.000Z

    EXPKRflIENTAL FERRITE CORE CIRCUIT ANALYSIS A/4i) CESIGN APPLI ED' TO AN ANALOG+I QITAL -CCWERTER I I 'O' Thaaka RCSERT, NI. LL'I AN HQQAKS:-. , ";, , '. . :. . '. -:. '"":, , ':-. ', . -' ". ' t, . I I I' I, ' . Sobalttad, ta tb ~ Qra... , Na'fir. Sabjaat& ' Eiaktr leal EnCInaaring . EXPERIIIENTAL FERRITE CORE CIRCUIT ANALYSIS AND DESIGN APPLIED TO 'AN AMALGG/DIGITAL CONVERTER f 1 A, . Thea I'a t ROBERT Wl LI. I Al'Jl. HUGHES (Goober, ) ' (Me@bar) ' A'yprived . a'o . . to a4...

  15. Extremum seeking control techniques applied to photovoltaic systems with multimodal power curves

    E-Print Network [OSTI]

    Boyer, Edmond

    Extremum seeking control techniques applied to photovoltaic systems with multimodal power curves systems while the energy consumption is also increasing [1], [2]. Among such systems, the photovoltaic (PV algorithms are proposed for such systems in order to harvest maximum power: short- circuit photovoltaic

  16. Jacobi stability analysis of the Lorenz system

    E-Print Network [OSTI]

    Tiberiu Harko; Chor Yin Ho; Chun Sing Leung; Stan Yip

    2015-04-11T23:59:59.000Z

    We perform the study of the stability of the Lorenz system by using the Jacobi stability analysis, or the Kosambi-Cartan-Chern (KCC) theory. The Lorenz model plays an important role for understanding hydrodynamic instabilities and the nature of the turbulence, also representing a non-trivial testing object for studying non-linear effects. The KCC theory represents a powerful mathematical method for the analysis of dynamical systems. In this approach we describe the evolution of the Lorenz system in geometric terms, by considering it as a geodesic in a Finsler space. By associating a non-linear connection and a Berwald type connection, five geometrical invariants are obtained, with the second invariant giving the Jacobi stability of the system. The Jacobi (in)stability is a natural generalization of the (in)stability of the geodesic flow on a differentiable manifold endowed with a metric (Riemannian or Finslerian) to the non-metric setting. In order to apply the KCC theory we reformulate the Lorenz system as a set of two second order non-linear differential equations. The geometric invariants associated to this system (nonlinear and Berwald connections), and the deviation curvature tensor, as well as its eigenvalues, are explicitly obtained. The Jacobi stability of the equilibrium points of the Lorenz system is studied, and the condition of the stability of the equilibrium points is obtained. Finally, we consider the time evolution of the components of the deviation vector near the equilibrium points.

  17. Thorough approach to measurement uncertainty analysis applied to immersed heat exchanger testing

    SciTech Connect (OSTI)

    Farrington, R.B.; Wells, C.V.

    1986-04-01T23:59:59.000Z

    This paper discusses the value of an uncertainty analysis, discusses how to determine measurement uncertainty, and then details the sources of error in instrument calibration, data acquisition, and data reduction for a particular experiment. Methods are discussed to determine both the systematic (or bias) error in an experiment as well as to determine the random (or precision) error in the experiment. The detailed analysis is applied to two sets of conditions in measuring the effectiveness of an immersed coil heat exchanger. It shows the value of such analysis as well as an approach to reduce overall measurement uncertainty and to improve the experiment. This paper outlines how to perform an uncertainty analysis and then provides a detailed example of how to apply the methods discussed in the paper. The authors hope this paper will encourage researchers and others to become more concerned with their measurement processes and to report measurement uncertainty with all of their test results.

  18. Values of Stakeholders in the Net Neutrality Debate: Applying Content Analysis to Telecommunications Policy

    E-Print Network [OSTI]

    Oard, Doug

    Values of Stakeholders in the Net Neutrality Debate: Applying Content Analysis@surugadai.ac.jp Abstract Net neutrality is an important telecommunications policy debate. This debate is closely tied' positions on this debate. This paper examines the role of values in shaping the Net neutrality debate

  19. Microbial Quality Analysis of Water Runoff For Biosolid-Applied Fields in Southern Arizona

    E-Print Network [OSTI]

    Fay, Noah

    Microbial Quality Analysis of Water Runoff For Biosolid-Applied Fields in Southern Arizona Nicholas Undergraduate Fellowship Program #12;Abstract Biosolids, solid waste byproducts resulting from wastewater of biosolid application on a farm's water quality. Using indicator organisms such as E. coli and total

  20. Extending the Borders of Accident Investigation: Applying Novel Analysis Techniques to the Loss of the Brazilian

    E-Print Network [OSTI]

    Johnson, Chris

    -1- Extending the Borders of Accident Investigation: Applying Novel Analysis Techniques to the Loss. In consequence, it is becoming increasingly difficult to identify the causes of incidents and accidents back to the development of a number of novel accident investigation techniques. Most of these approaches are intended

  1. Numerical bifurcation analysis of piecewise smooth systems

    E-Print Network [OSTI]

    ( ) ( ) ( ) ( ), , outoutinin inin xffxff xhhxgg xxxx == == #12;Numerical bifurcation analysis of piecewise smooth systems INRIA

  2. Inventory reduction : applying a pull ordering system to a distribution business

    E-Print Network [OSTI]

    Chesborough, Amber J. (Amber June), 1977-

    2004-01-01T23:59:59.000Z

    This thesis is a description of an internship project at an aerospace parts distribution company. The goal of the project was to reduce inventory by applying a pull ordering system to the distributor's value chain. The ...

  3. Applied Materials Develops an Advanced Epitaxial Growth System to Bring Down LED Costs

    Broader source: Energy.gov [DOE]

    With the help of DOE funding, Applied Materials has developed an advanced epitaxial growth system for gallium nitride (GaN) LED devices that decreases operating costs, increases internal quantum efficiency, and improves binning yields.

  4. International Institute for Applied Systems Analysis | 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 onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand Jump to: navigation, searchOf Kilauea Volcano, Hawaii | Open EnergyIGP Jump to: navigation,

  5. System for analysis of explosives

    DOE Patents [OSTI]

    Haas, Jeffrey S. (San Ramon, CA)

    2010-06-29T23:59:59.000Z

    A system for analysis of explosives. Samples are spotted on a thin layer chromatography plate. Multi-component explosives standards are spotted on the thin layer chromatography plate. The thin layer chromatography plate is dipped in a solvent mixture and chromatography is allowed to proceed. The thin layer chromatography plate is dipped in reagent 1. The thin layer chromatography plate is heated. The thin layer chromatography plate is dipped in reagent 2.

  6. Systems Analysis | Department of Energy

    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: Alternative Fuels Data CenterEnergyGlossaryProgramRussiaSpaceNewsSustainableSystems Analysis

  7. Analysis of complex systems using neural networks

    SciTech Connect (OSTI)

    Uhrig, R.E. [Tennessee Univ., Knoxville, TN (United States). Dept. of Nuclear Engineering]|[Oak Ridge National Lab., TN (United States)

    1992-12-31T23:59:59.000Z

    The application of neural networks, alone or in conjunction with other advanced technologies (expert systems, fuzzy logic, and/or genetic algorithms), to some of the problems of complex engineering systems has the potential to enhance the safety, reliability, and operability of these systems. Typically, the measured variables from the systems are analog variables that must be sampled and normalized to expected peak values before they are introduced into neural networks. Often data must be processed to put it into a form more acceptable to the neural network (e.g., a fast Fourier transformation of the time-series data to produce a spectral plot of the data). Specific applications described include: (1) Diagnostics: State of the Plant (2) Hybrid System for Transient Identification, (3) Sensor Validation, (4) Plant-Wide Monitoring, (5) Monitoring of Performance and Efficiency, and (6) Analysis of Vibrations. Although specific examples described deal with nuclear power plants or their subsystems, the techniques described can be applied to a wide variety of complex engineering systems.

  8. Analysis of complex systems using neural networks

    SciTech Connect (OSTI)

    Uhrig, R.E. (Tennessee Univ., Knoxville, TN (United States). Dept. of Nuclear Engineering Oak Ridge National Lab., TN (United States))

    1992-01-01T23:59:59.000Z

    The application of neural networks, alone or in conjunction with other advanced technologies (expert systems, fuzzy logic, and/or genetic algorithms), to some of the problems of complex engineering systems has the potential to enhance the safety, reliability, and operability of these systems. Typically, the measured variables from the systems are analog variables that must be sampled and normalized to expected peak values before they are introduced into neural networks. Often data must be processed to put it into a form more acceptable to the neural network (e.g., a fast Fourier transformation of the time-series data to produce a spectral plot of the data). Specific applications described include: (1) Diagnostics: State of the Plant (2) Hybrid System for Transient Identification, (3) Sensor Validation, (4) Plant-Wide Monitoring, (5) Monitoring of Performance and Efficiency, and (6) Analysis of Vibrations. Although specific examples described deal with nuclear power plants or their subsystems, the techniques described can be applied to a wide variety of complex engineering systems.

  9. Applying observations of work activity in designing prototype data analysis tools

    SciTech Connect (OSTI)

    Springmeyer, R.R.

    1993-07-06T23:59:59.000Z

    Designers, implementers, and marketers of data analysis tools typically have different perspectives than users. Consequently, data analysis often find themselves using tools focused on graphics and programming concepts rather than concepts which reflect their own domain and the context of their work. Some user studies focus on usability tests late in development; others observe work activity, but fail to show how to apply that knowledge in design. This paper describes a methodology for applying observations of data analysis work activity in prototype tool design. The approach can be used both in designing improved data analysis tools, and customizing visualization environments to specific applications. We present an example of user-centered design for a prototype tool to cull large data sets. We revisit the typical graphical approach of animating a large data set from the point of view of an analysis who is culling data. Field evaluations using the prototype tool not only revealed valuable usability information, but initiated in-depth discussions about user`s work, tools, technology, and requirements.

  10. Applying UML and MDA to Real Systems Design Nokia Research Center, Finland

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Applying UML and MDA to Real Systems Design Ian Oliver Nokia Research Center, Finland ian.oliver@nokia.com 1 UML and MDA Traditionally system design has been made from a black box/functionality only such as the OMG's Model Based Architecture (MDA) or Model Based Engineering (MBE)1 and the ubiq- uitous modelling

  11. Apparatus and system for multivariate spectral analysis

    DOE Patents [OSTI]

    Keenan, Michael R. (Albuquerque, NM); Kotula, Paul G. (Albuquerque, NM)

    2003-06-24T23:59:59.000Z

    An apparatus and system for determining the properties of a sample from measured spectral data collected from the sample by performing a method of multivariate spectral analysis. The method can include: generating a two-dimensional matrix A containing measured spectral data; providing a weighted spectral data matrix D by performing a weighting operation on matrix A; factoring D into the product of two matrices, C and S.sup.T, by performing a constrained alternating least-squares analysis of D=CS.sup.T, where C is a concentration intensity matrix and S is a spectral shapes matrix; unweighting C and S by applying the inverse of the weighting used previously; and determining the properties of the sample by inspecting C and S. This method can be used by a spectrum analyzer to process X-ray spectral data generated by a spectral analysis system that can include a Scanning Electron Microscope (SEM) with an Energy Dispersive Detector and Pulse Height Analyzer.

  12. Tank waste remediation system (TWRS) mission analysis

    SciTech Connect (OSTI)

    Rieck, R.H.

    1996-10-03T23:59:59.000Z

    The Tank Waste Remediation System Mission Analysis provides program level requirements and identifies system boundaries and interfaces. Measures of success appropriate to program level accomplishments are also identified.

  13. Systems Analysis Workshop List of Attendees

    Broader source: Energy.gov [DOE]

    List of Attendees from DOE Systems Analysis Workshop held in Washington, D.C. July 28-29, 2004 to discuss and define role of systems analysis in DOE Hydrogen Program.

  14. Cost Analysis of Hydrogen Storage Systems

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

    Cost Analysis of Hydrogen Cost Analysis of Hydrogen Storage Systems Storage Systems TIAX LLC 15 Acorn Park Cambridge, MA 02140-2390 Tel. 617- 498-5000 Fax 617-498-7200...

  15. Statistics programs1 teach individuals to apply mathematical principles to the collection, analysis, and presentation of data.

    E-Print Network [OSTI]

    Lawrence, Rick L.

    Statistics programs1 teach individuals to apply mathematical principles to the collection, analysis and statistical knowledge to the design of surveys and experiments; collection, processing, and analysis of data; and interpretation of the results. Statisticians may apply their knowledge of statistical methods to a variety

  16. DOE Hydrogen Program Systems Analysis Workshop

    E-Print Network [OSTI]

    ) · Define analysis scenarios NREL SYSTEMS INTEGRATION · Accountable for analysis activities · Provide inputs · Coordinate and provide ideas/recommendations to SI on cross-cutting analysis · Manage analysis tasks internal to DOE (Labs/FFRDCs only) · Perform analysis of technoeconomic topics for TA and SI · Perform subprogram

  17. A case study in the misrepresentation of applied behavior analysis in autism: The Gernsbacher lectures

    E-Print Network [OSTI]

    Morris, Edward K.

    2009-03-01T23:59:59.000Z

    , the ethical guidelines of the Behav- ior Analysis Certification BoardH (BACB) require data-based decision making (see Bailey & Burch, 2005, pp. 104–106, 212–214). Gernsbacher’s Review and Conclusions Gernsbacher did not review all the applied behavior... reviewers searched the 1980–1998 MEDLINE, PsychINFO, and ERIC databases under autism, infantile autism, and autistic children and read the abstracts of all the articles for those ‘‘that might contain evidence about intervention’’ and then ob- tained those...

  18. Geospatial analysis of vulnerable beach-foredune systems from decadal time series of lidar data

    E-Print Network [OSTI]

    Mitasova, Helena

    Geospatial analysis of vulnerable beach-foredune systems from decadal time series of lidar data, Geospatial analysis of vulnerable beach- foredune systems from decadal time series of lidar data, Journal densities; therefore, geospatial analysis, when applied to decadal lidar time series, needs to address

  19. Expert Meeting Report: Recommendations for Applying Water Heaters in Combination Space and Domestic Water Heating Systems

    SciTech Connect (OSTI)

    Rudd, A.; Ueno, K.; Bergey, D.; Osser, R.

    2012-07-01T23:59:59.000Z

    The topic of this meeting was 'Recommendations For Applying Water Heaters In Combination Space And Domestic Water Heating Systems.' Presentations and discussions centered on the design, performance, and maintenance of these combination systems, with the goal of developing foundational information toward the development of a Building America Measure Guideline on this topic. The meeting was held at the Westford Regency Hotel, in Westford, Massachusetts on 7/31/2011.

  20. Robust Strategy Synthesis for Probabilistic Systems Applied to Risk-Limiting Renewable-Energy Pricing

    E-Print Network [OSTI]

    Seshia, Sanjit A.

    Robust Strategy Synthesis for Probabilistic Systems Applied to Risk-Limiting Renewable-Energy pricing and dispatch strategies in smart grids that integrate re- newable sources of energy. We use}@eecs.berkeley.edu ABSTRACT We address the problem of synthesizing control strategies for El- lipsoidal Markov Decision

  1. Bifurcation Analysis of Various Power System Models

    E-Print Network [OSTI]

    Cañizares, Claudio A.

    modeling, voltage collapse. I. Introduction Voltage stability problems in power systems may occurBifurcation Analysis of Various Power System Models William D. Rosehart Claudio A. Ca This paper presents the bifurcation analysis of a detailed power system model composed of an aggregated

  2. System architecture analysis and selection under uncertainty

    E-Print Network [OSTI]

    Smaling, Rudolf M

    2005-01-01T23:59:59.000Z

    A system architecture analysis and selection methodology is presented that builds on the Multidisciplinary Analysis and Optimization framework. It addresses a need and opportunity to extend the MAO techniques to include a ...

  3. From Basic Control to Optimized Systems-Applying Digital Control Systems to Steam Boilers 

    E-Print Network [OSTI]

    Hockenbury, W. D.

    1982-01-01T23:59:59.000Z

    on heat transferred to a process. If that process suffers an upset, unstable conditions can propagate from one process to another via the steam supply system. The closer the tolerance in the boiler control system, the smaller the steam header...

  4. Reachability Analysis of Stochastic Hybrid Systems: A Biodiesel Production System

    E-Print Network [OSTI]

    Koutsoukos, Xenofon D.

    Reachability Analysis of Stochastic Hybrid Systems: A Biodiesel Production System Derek Riley problem because it provides a formal framework to analyze complex systems. Biodiesel production is a realistic biochemical process that can be modeled and analyzed using SHS methods. Analysis of a biodiesel

  5. Comprehensive Mechanisms for Combustion Chemistry: An Experimental and Numerical Study with Emphasis on Applied Sensitivity Analysis

    SciTech Connect (OSTI)

    Dryer, Frederick L.

    2009-04-10T23:59:59.000Z

    This project was an integrated experimental/numerical effort to study pyrolysis and oxidation reactions and mechanisms for small-molecule hydrocarbon structures under conditions representative of combustion environments. The experimental aspects of the work were conducted in large-diameter flow reactors, at 0.3 to 18 atm pressure, 500 to 1100 K temperature, and 10-2 to 2 seconds reaction time. Experiments were also conducted to determine reference laminar flame speeds using a premixed laminar stagnation flame experiment and particle image velocimetry, as well as pressurized bomb experiments. Flow reactor data for oxidation experiments include: (1)adiabatic/isothermal species time-histories of a reaction under fixed initial pressure, temperature, and composition; to determine the species present after a fixed reaction time, initial pressure; (2)species distributions with varying initial reaction temperature; (3)perturbations of a well-defined reaction systems (e.g. CO/H2/O2 or H2/O2)by the addition of small amounts of an additive species. Radical scavenging techniques are applied to determine unimolecular decomposition rates from pyrolysis experiments. Laminar flame speed measurements are determined as a function of equivalence ratio, dilution, and unburned gas temperature at 1 atm pressure. Hierarchical, comprehensive mechanistic construction methods were applied to develop detailed kinetic mechanisms which describe the measurements and literature kinetic data. Modeling using well-defined and validated mechanisms for the CO/H2/Oxidant systems and perturbations of oxidation experiments by small amounts of additives were also used to derive absolute reaction rates and to investigate the compatibility of published elementary kinetic and thermochemical information. Numerical tools were developed and applied to assess the importance of individual elementary reactions to the predictive performance of the developed mechanisms and to assess the uncertainties in elementary rate constant evaluations.

  6. Multiple stellar systems under photometric and astrometric analysis

    E-Print Network [OSTI]

    P. Zasche

    2008-01-28T23:59:59.000Z

    The light-time effect method, its limitations and applications were studied. A powerful combined method of simultaneous analysis of the O-C diagrams and astrometric orbit in triple eclipsing-astrometric binaries was presented. Eleven eclipsing systems were studied in detail according to their O-C diagrams (RY Aqr, BF CMi, RW Cap, TY Cap, SS Cet, RR Dra, TY Del, TZ Eri, RV Per, UZ Sge, and BO Vul). The introduced method for studying the astrometric-eclipsing binaries was applied to QS Aql, VW Cep, Zeta Phe, V505 Sgr, HT Vir, and V2388 Oph. The algorithm for such an analysis was introduced and the its limitations were discussed. The catalogue of another systems, which contain eclipsing binaries in astrometric binaries, was presented. Such systems could be useful for prospective analysis. The method itself could be easily modified for estimation of the parallax of the individual systems.

  7. IT Specialist (Systems Analysis/Applications Software)

    Broader source: Energy.gov [DOE]

    The incumbent in this position will serve as a Senior IT Specialist (Systems Analysis/Applications Support) and Technical Lead in the Enterprise Applications Support organization of Software...

  8. Energy Systems Analysis | Argonne National Laboratory

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

    Energy Systems Analysis All stages of energy production have inputs and outputs. Argonne researchers analyze the total production picture and develop tools for members of the...

  9. Stochastic Control Analysis for Biochemical Reaction Systems

    E-Print Network [OSTI]

    Kyung Hyuk Kim; Herbert M. Sauro

    2009-08-21T23:59:59.000Z

    In this paper, we investigate how stochastic reaction processes are affected by external perturbations. We describe an extension of the deterministic metabolic control analysis (MCA) to the stochastic regime. We introduce stochastic sensitivities for mean and covariance values of reactant concentrations and reaction fluxes and show that there exist MCA-like summation theorems among these sensitivities. The summation theorems for flux variances are shown to depend on the size of the measurement time window ($\\epsilon$), within which reaction events are counted for measuring a single flux. The degree of the $\\epsilon$-dependency can become significant for processes involving multi-time-scale dynamics and is estimated by introducing a new measure of time scale separation. This $\\epsilon$-dependency is shown to be closely related to the power-law scaling observed in flux fluctuations in various complex networks. We propose a systematic way to control fluctuations of reactant concentrations while minimizing changes in mean concentration levels. Such orthogonal control is obtained by introducing a control vector indicating the strength and direction of parameter perturbations leading to a sensitive control. We also propose a possible implication in the control of flux fluctuation: The control distribution for flux fluctuations changes with the measurement time window size, $\\epsilon$. When a control engineer applies a specific control operation on a reaction system, the system can respond contrary to what is expected, depending on the time window size $\\epsilon$.

  10. Systems analysis of multiple regulator perturbations allows discoveryo...

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

    Systems analysis of multiple regulator perturbations allows discoveryof virulence factors in Salmonella. Systems analysis of multiple regulator perturbations allows discoveryof...

  11. Technical and Energy Assessment of Building Integrated Photovoltaic Systems applied to the UAE Office Buildings 

    E-Print Network [OSTI]

    Radhi, H.

    2010-01-01T23:59:59.000Z

    Technical and Energy Assessment of Building Integrated Photovoltaic Systems applied to the UAE Office Buildings Hassan Radhi Assistant Professor College of Engineering UAE University Al-Ain, United Arab Emirates ABSTRACT In the market... due to the PV panels represents an important factor when the EPBT is estimated Keywords: BiPV, embodied energy, UAE commercial buildings. INTRODUCTION Developments in the design and manufacture of photovoltaic cells have recently been a...

  12. Technical and Energy Assessment of Building Integrated Photovoltaic Systems applied to the UAE Office Buildings

    E-Print Network [OSTI]

    Radhi, H.

    2010-01-01T23:59:59.000Z

    Technical and Energy Assessment of Building Integrated Photovoltaic Systems applied to the UAE Office Buildings Hassan Radhi Assistant Professor College of Engineering UAE University Al-Ain, United Arab Emirates ABSTRACT In the market... due to the PV panels represents an important factor when the EPBT is estimated Keywords: BiPV, embodied energy, UAE commercial buildings. INTRODUCTION Developments in the design and manufacture of photovoltaic cells have recently been a...

  13. Power Systems Analysis ELEN4511 Spring 2013

    E-Print Network [OSTI]

    Lavaei, Javad

    Power Systems Analysis ELEN4511 Spring 2013 Project Paper: Communication Systems and Standards along the power grid. The grid comprised solely of electro- mechanical systems that could of communication systems on the power grid enables devices to communicate more efficiently, and also allows

  14. Correlated Failures of Power Systems: The Analysis of the Nordic Grid

    E-Print Network [OSTI]

    Johansson, Karl Henrik

    Correlated Failures of Power Systems: The Analysis of the Nordic Grid M. Andreasson, S. Amin, G the effects of correlations between failures of power lines on the total system load shed. The total system on the sampling accuracy. This framework has been applied to a 470 bus model of the Nordic power system

  15. Feasibility Studies of Applying Kalman Filter Techniques to Power System Dynamic State Estimation

    SciTech Connect (OSTI)

    Huang, Zhenyu; Schneider, Kevin P.; Nieplocha, Jarek

    2007-08-01T23:59:59.000Z

    Abstract—Lack of dynamic information in power system operations mainly attributes to the static modeling of traditional state estimation, as state estimation is the basis driving many other operations functions. This paper investigates the feasibility of applying Kalman filter techniques to enable the inclusion of dynamic modeling in the state estimation process and the estimation of power system dynamic states. The proposed Kalman-filter-based dynamic state estimation is tested on a multi-machine system with both large and small disturbances. Sensitivity studies of the dynamic state estimation performance with respect to measurement characteristics – sampling rate and noise level – are presented as well. The study results show that there is a promising path forward to implementation the Kalman-filter-based dynamic state estimation with the emerging phasor measurement technologies.

  16. Solar load ratio method applied to commercial building active solar system sizing

    SciTech Connect (OSTI)

    Schnurr, N.M.; Hunn, B.D.; Williamson, K.D. III

    1981-01-01T23:59:59.000Z

    The hourly simulation procedure is the DOE-2 building energy analysis computer program. It is capable of calculating the loads and of simulating various control strategies in detail for both residential and commercial buildings and yet is computationally efficient enough to be used for extensive parametric studies. In addition, to a Building Service Hot Water (BSHW) System and a combined space heating and hot water system using liquid collectors for a commercial building analyzed previously, a space heating system using an air collector is analyzed. A series of runs is made for systems using evacuated tube collectors for comparison to flat-plate collectors, and the effects of additional system design parameters are investigated. Also, the generic collector types are characterized by standard efficiency curves, rather than by detailed collector specifications. (MHR)

  17. Mandatory Photovoltaic System Cost Analysis

    Broader source: Energy.gov [DOE]

    The Arizona Corporation Commission requires electric utilities to conduct a cost/benefit analysis to compare the cost of line extension with the cost of installing a stand-alone photovoltaic (PV)...

  18. Modeling and Analysis ofModeling and Analysis of Hybrid Control SystemsHybrid Control Systems

    E-Print Network [OSTI]

    Johansson, Karl Henrik

    control systems, MOVEP, Bordeaux, 2006 Automatic gear boxAutomatic gear box #12;Karl H. Johansson, HybridModeling and Analysis ofModeling and Analysis of Hybrid Control SystemsHybrid Control Systems Karl.kth.se/~kallej MOVEP 2006, Bordeaux, France Karl H. Johansson, Hybrid control systems, MOVEP, Bordeaux

  19. Time Series Analysis Methods Applied to the Super-Kamiokande I Data

    E-Print Network [OSTI]

    Gioacchino Ranucci

    2005-05-25T23:59:59.000Z

    The need to unravel modulations hidden in noisy time series of experimental data is a well known problem, traditionally attacked through a variety of methods, among which a popular tool is the so called Lomb-Scargle periodogram. Recently, for a class of problems in the solar neutrino field, it has been proposed an alternative maximum likelihood based approach, intended to overcome some intrinsic limitations affecting the Lomb-Scargle implementation. This work is focused to highlight the features of the likelihood methodology, introducing in particular an analytical approach to assess the quantitative significance of the potential modulation signals. As an example, the proposed method is applied to the time series of the measured values of the 8B neutrino flux released by the Super-Kamiokande collaboration, and the results compared with those of previous analysis performed on the same data sets. It is also examined in detail the comparison between the Lomb-Scargle and the likelihood methods, giving in the appendix the complete demonstration of their close relationship.

  20. Sandia National Laboratories: Systems Analysis

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

    Increasing the Scaled Wind Farm Technology Facility's Power Production On April 7, 2014, in Energy, Facilities, News, News & Events, Partnership, Renewable Energy, SWIFT, Systems...

  1. Satellite System Safety Analysis Using STPA

    E-Print Network [OSTI]

    Dunn, Nicholas Connor

    2013-01-01T23:59:59.000Z

    Traditional hazard analysis techniques based on failure models of accident causality, such as the probabilistic risk assessment (PRA) method currently used at NASA, are inadequate for analyzing safety at the system level. ...

  2. Sensitivity analysis of large system of chemical kinetic parameters for engine combustion simulation

    SciTech Connect (OSTI)

    Hsieh, H; Sanz-Argent, J; Petitpas, G; Havstad, M; Flowers, D

    2012-04-19T23:59:59.000Z

    In this study, the authors applied the state-of-the art sensitivity methods to downselect system parameters from 4000+ to 8, (23000+ -> 4000+ -> 84 -> 8). This analysis procedure paves the way for future works: (1) calibrate the system response using existed experimental observations, and (2) predict future experiment results, using the calibrated system.

  3. Decision Analysis Science Modeling for Application and Fielding Selection Applied to Metal Decontamination Technologies

    SciTech Connect (OSTI)

    Lagos, L.E.; Ebadian, M.A.

    1998-01-01T23:59:59.000Z

    During the decontamination and decommissioning (D and D) activities being conducted by the U.S. Department of Energy (DOE), approximately 550,000 metric tons of contaminated metal will be generated by the disposition of contaminated buildings. The majority of the structural steel is considered to be radiologically contaminated. The D and D activities require the treatment of the structural steel to reduce occupational and environmental radiological exposures during dismantlement. Treatment technologies may also be required for possible recycling. Many proven commercial treatment technologies are available. These treatment processes vary in aggressiveness, safety requirements, secondary waste generation, necessary capital, and operation and maintenance costs. Choosing the appropriate technology to meet the decontamination objectives for structural steel is a difficult process. A single information source comparing innovative and nuclear and non-nuclear technologies in the areas of safety, cost and effectiveness is not currently commercially available to perform a detailed analysis. This study presents comparable data related to operation and maintenance, cost, and health and safely aspects of three readily available technologies and one innovative technology for nuclear decontamination. The technologies include Advance Recyclable Media System (ARMS{trademark}), NELCO Porta Shot Blast{trademark} (JHJ-2000), Pegasus Coating Removal System 7 (PCRS-7) and the innovative laser ablation technology called the Yag Eraser{trademark}.

  4. A specialized Masters program in applying computation and the principles of dynamical systems

    E-Print Network [OSTI]

    Zürich, Universität

    - dents are: High Performance Computing Applied Math and Computational Methods Simulation and Modeling

  5. Energy, Environmental & Economic Systems Analysis

    E-Print Network [OSTI]

    for analyzing integrated energy and electricity systems. Worldwide Use of ENPEP ENPEP is used around the world and government analysts are using the model for energy planning. Further, the World Bank and other lending and consumption activities independently, each optimizing individual objectives. ENPEP-BALANCE finds its solution

  6. Applied Catalysis A: General 219 (2001) 215222 Structural analysis of unpromoted Fe-based FischerTropsch

    E-Print Network [OSTI]

    Iglesia, Enrique

    2001-01-01T23:59:59.000Z

    Applied Catalysis A: General 219 (2001) 215­222 Structural analysis of unpromoted Fe-based Fischer­Tropsch by Mössbauer emission and X-ray absorption spectroscopies after use in the Fischer­Tropsch synthesis (FTS reactant mixture. © 2001 Elsevier Science B.V. All rights reserved. Keywords: Fischer­Tropsch synthesis; X

  7. Characterization of Multicrystalline Silicon Modules with System Bias Voltage Applied in Damp Heat

    SciTech Connect (OSTI)

    Hacke, P.; Kempe, M.; Terwilliger, K.; Glick, S.; Call, N.; Johnston, S.; Kurtz, S.

    2011-07-01T23:59:59.000Z

    As it is considered economically favorable to serially connect modules to build arrays with high system voltage, it is necessary to explore potential long-term degradation mechanisms the modules may incur under such electrical potential. We performed accelerated lifetime testing of multicrystalline silicon PV modules in 85 degrees C/ 85% relative humidity and 45 degrees C/ 30% relative humidity while placing the active layer in either positive or negative 600 V bias with respect to the grounded module frame. Negative bias applied to the active layer in some cases leads to more rapid and catastrophic module power degradation. This is associated with significant shunting of individual cells as indicated by electroluminescence, thermal imaging, and I-V curves. Mass spectroscopy results support ion migration as one of the causes. Electrolytic corrosion is seen occurring with the silicon nitride antireflective coating and silver gridlines, and there is ionic transport of metallization at the encapsulant interface observed with damp heat and applied bias. Leakage current and module degradation is found to be highly dependent upon the module construction, with factors such as encapsulant and front glass resistivity affecting performance. Measured leakage currents range from about the same seen in published reports of modules deployed in Florida (USA) and is accelerated to up to 100 times higher in the environmental chamber testing.

  8. Analysis of Fuel Cell Systems Rangan Banerjee

    E-Print Network [OSTI]

    Banerjee, Rangan

    Analysis of Fuel Cell Systems Rangan Banerjee Energy Systems Engineering IIT Bombay Lecture in CEP Course on `Fuel Cell' at IIT 14th November 2007 #12;Overview of Talk Energy Crisis ­ Motivation for fuel biological Hydrogen Gasification Fermentation Cracking + Shift Reaction Fuel Cell #12;ENERGY FLOW DIAGRAM

  9. Energy Engineering & Systems Analysis Success Stories

    E-Print Network [OSTI]

    Kemner, Ken

    Energy Engineering & Systems Analysis Success Stories Helping Make the U.S. Power Grid Smarter-way communication technologies into the power grid, the nation will have a more robust and efficient system it delivered. The Challenge President Barack Obama has called for one million plug-in hybrid electric vehicles

  10. Energy, Environmental, and Economic Systems Analysis

    E-Print Network [OSTI]

    and deregulated, shifting control from a single decision maker (i.e., a single, government-owned electric utility determining electricity consumption (customer agents), unit commitment (generation companies), bilateralEnergy, Environmental, and Economic Systems Analysis Electricity Market Complex Adaptive System

  11. [4] J.W. Lamont, R. H. Iveson, "Array Processor Appli-cations in Power System Planning and Operation",

    E-Print Network [OSTI]

    Catholic University of Chile (Universidad Católica de Chile)

    engaged in research on power system stability and control. His primary interest is in the area of research and developmental work related to various stabilizing techniques of a large interconnected power system. Dr. Abe[4] J.W. Lamont, R. H. Iveson, "Array Processor Appli- cations in Power System Planning

  12. Open-Loop Control Design via Parametrization Applied in a Two-Level Quantum System Model

    E-Print Network [OSTI]

    Markku Nihtilä

    2010-02-23T23:59:59.000Z

    In the design of quantum computing devices of the future the basic element is the qubit. It is a two-level quantum system which may describe population transfer from one steady-state to another controlled by a coherent laser field. A four-dimensional real-variable differential equation model is constructed from the complex-valued two-level model describing the wave function of the system. The state transition matrix of the model is constructed via the Wei-Norman technique and Lie algebraic methodology. The idea of parametrization using flatness-based control, is applied to construct feasible input--output pairs of the model. This input drives the state of the system from the given initial state to the given final state in a finite time producing the corresponding output of the pair. The population transfer is obtained by nullifying part of the state vector via careful selection of the parameter functions. A preliminary simulation study completes the paper.

  13. Systems Analysis | Department of Energy

    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: Alternative Fuels Data CenterEnergyGlossaryProgramRussiaSpaceNewsSustainableSystems

  14. VISION 21 SYSTEMS ANALYSIS METHODOLOGIES

    SciTech Connect (OSTI)

    G.S. Samuelsen; A. Rao; F. Robson; B. Washom

    2003-08-11T23:59:59.000Z

    Under the sponsorship of the U.S. Department of Energy/National Energy Technology Laboratory, a multi-disciplinary team led by the Advanced Power and Energy Program of the University of California at Irvine is defining the system engineering issues associated with the integration of key components and subsystems into power plant systems that meet performance and emission goals of the Vision 21 program. The study efforts have narrowed down the myriad of fuel processing, power generation, and emission control technologies to selected scenarios that identify those combinations having the potential to achieve the Vision 21 program goals of high efficiency and minimized environmental impact while using fossil fuels. The technology levels considered are based on projected technical and manufacturing advances being made in industry and on advances identified in current and future government supported research. Included in these advanced systems are solid oxide fuel cells and advanced cycle gas turbines. The results of this investigation will serve as a guide for the U. S. Department of Energy in identifying the research areas and technologies that warrant further support.

  15. PLT data acquisition and analysis system

    SciTech Connect (OSTI)

    Murphy, J.A.; Gibney, T.R.

    1986-08-01T23:59:59.000Z

    The data acquisition and analysis system for PLT (Princeton Large Torus) is being moved from a DEC-10 to a VAX 11/785. Most of the major diagnostics are currently running on the VAX, with approximately 1 Mbyte of data being taken each shot. The system uses the MIT model data system (MDS) for acquisition and archival of data and the PPPL event-controlled scheduler (ECS) for scheduling. The analysis programs use the MDS data retrieval subroutines which deliver correctly calibrated results to the user program.

  16. Waste Feed Delivery Transfer System Analysis

    SciTech Connect (OSTI)

    JULYK, L.J.

    2000-05-05T23:59:59.000Z

    This document provides a documented basis for the required design pressure rating and pump pressure capacity of the Hanford Site waste-transfer system in support of the waste feed delivery to the privatization contractor for vitrification. The scope of the analysis includes the 200 East Area double-shell tank waste transfer pipeline system and the associated transfer system pumps for a11 Phase 1B and Phase 2 waste transfers from AN, AP, AW, AY, and A2 Tank Farms.

  17. Applying Decline Curve Analysis in the Liquid-rich Shales: Eagle Ford Shale Study 

    E-Print Network [OSTI]

    Indras, Purvi

    2014-01-09T23:59:59.000Z

    With the emergence of liquid rich shale (LRS) plays like Eagle Ford and Northern Barnett, the petroleum industry needs a simple, easily applied technique that provides reliable estimates of future production rates in this kind of reservoir...

  18. Evaluation of the use of engineering judgements applied to analytical human reliablity analysis methods (HRA) 

    E-Print Network [OSTI]

    Kohlhepp, Katherine D.

    2006-04-12T23:59:59.000Z

    the use of engineering judgment applied to the quantification of post-initiator actions using the HRA Calculator. The Comanche Peak Steam Electric Station (CPSES) Level 1 Probabilistic Risk Assessment (PRA) HRA was used as a database for examples...

  19. Hydrogen Storage Systems Analysis Meeting: Summary Report, March...

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

    Meeting: Summary Report, March 29, 2005 Hydrogen Storage Systems Analysis Meeting: Summary Report, March 29, 2005 This report highlights DOE's systems analysis work related to...

  20. Hydrgoen Storage Systems Analysis Working Group Meeting Summary...

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

    Hydrgoen Storage Systems Analysis Working Group Meeting Summary Report Hydrgoen Storage Systems Analysis Working Group Meeting Summary Report Summary report from the May 17, 2007...

  1. Earned Value Management System (EVMS) and Project Analysis Standard...

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

    Earned Value Management System (EVMS) and Project Analysis Standard Operating Procedure (EPASOP)- March 2014 Earned Value Management System (EVMS) and Project Analysis Standard...

  2. Top Hat Pressure System Hyperbaric Test Analysis | Department...

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

    Top Hat Pressure System Hyperbaric Test Analysis Top Hat Pressure System Hyperbaric Test Analysis This file contains data from pressure measurements inside Top Hat 4....

  3. New airport liquid analysis system undergoes testing at Albuquerque...

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

    New airport liquid analysis system New airport liquid analysis system undergoes testing at Albuquerque International Sunport A new tool that distinguishes potential-threat liquids...

  4. Security Analysis and Project Management Systems | ornl.gov

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

    Security Analysis and Project Management Systems SHARE Security Analysis and Project Management Systems ORNL brings together the subject matter experts with programmers to design,...

  5. Course STAT 6348.501 Applied Multivariate Analysis Professor Robert Serfling

    E-Print Network [OSTI]

    Serfling, Robert

    Analysis. The Classification Problem: Discriminant Analysis, Support Vector Machines, Classification the professor's notes accompanied by handouts distributed by email and from library eBooks. Also, other sources). T 11/15 R 11/17 Classification: discriminant analysis; support vector machines. Support vector machines

  6. GAS ANALYSIS SYSTEM COMPOSED OF A SOLID-STATE SENSOR ARRAY AND HYBRID NEURAL NETWORK

    E-Print Network [OSTI]

    Osowski, Stanislaw

    1 GAS ANALYSIS SYSTEM COMPOSED OF A SOLID-STATE SENSOR ARRAY AND HYBRID NEURAL NETWORK STRUCTURE of the solid state sensor array used for the gas analysis. The applied neural network is composed of two parts of the gas components. The obtained results have shown that the array of partially selective sensors

  7. RAMS (Risk Analysis - Modular System) methodology

    SciTech Connect (OSTI)

    Stenner, R.D.; Strenge, D.L.; Buck, J.W. [and others

    1996-10-01T23:59:59.000Z

    The Risk Analysis - Modular System (RAMS) was developed to serve as a broad scope risk analysis tool for the Risk Assessment of the Hanford Mission (RAHM) studies. The RAHM element provides risk analysis support for Hanford Strategic Analysis and Mission Planning activities. The RAHM also provides risk analysis support for the Hanford 10-Year Plan development activities. The RAMS tool draws from a collection of specifically designed databases and modular risk analysis methodologies and models. RAMS is a flexible modular system that can be focused on targeted risk analysis needs. It is specifically designed to address risks associated with overall strategy, technical alternative, and `what if` questions regarding the Hanford cleanup mission. RAMS is set up to address both near-term and long-term risk issues. Consistency is very important for any comparative risk analysis, and RAMS is designed to efficiently and consistently compare risks and produce risk reduction estimates. There is a wide range of output information that can be generated by RAMS. These outputs can be detailed by individual contaminants, waste forms, transport pathways, exposure scenarios, individuals, populations, etc. However, they can also be in rolled-up form to support high-level strategy decisions.

  8. Life-Cycle Analysis Results of Geothermal Systems in Comparison...

    Office of Environmental Management (EM)

    Life-Cycle Analysis Results of Geothermal Systems in Comparison to Other Power Systems Life-Cycle Analysis Results of Geothermal Systems in Comparison to Other Power Systems A...

  9. Design and manufacturing analysis of resonantly coupled circuits and other components used for applied wireless power transmission : application analysis

    E-Print Network [OSTI]

    Krogman, Mitchell S. (Mitchell Spencer)

    2013-01-01T23:59:59.000Z

    This thesis describes the analysis of a locking mechanism designed by ProTeqt Technologies. More specifically, the analysis considers the mechanism after the implementation of a resonantly coupled circuit used to receive ...

  10. Fuel Cycle System Analysis Handbook

    SciTech Connect (OSTI)

    Steven J. Piet; Brent W. Dixon; Dirk Gombert; Edward A. Hoffman; Gretchen E. Matthern; Kent A. Williams

    2009-06-01T23:59:59.000Z

    This Handbook aims to improve understanding and communication regarding nuclear fuel cycle options. It is intended to assist DOE, Campaign Managers, and other presenters prepare presentations and reports. When looking for information, check here. The Handbook generally includes few details of how calculations were performed, which can be found by consulting references provided to the reader. The Handbook emphasizes results in the form of graphics and diagrams, with only enough text to explain the graphic, to ensure that the messages associated with the graphic is clear, and to explain key assumptions and methods that cause the graphed results. Some of the material is new and is not found in previous reports, for example: (1) Section 3 has system-level mass flow diagrams for 0-tier (once-through), 1-tier (UOX to CR=0.50 fast reactor), and 2-tier (UOX to MOX-Pu to CR=0.50 fast reactor) scenarios - at both static and dynamic equilibrium. (2) To help inform fast reactor transuranic (TRU) conversion ratio and uranium supply behavior, section 5 provides the sustainable fast reactor growth rate as a function of TRU conversion ratio. (3) To help clarify the difference in recycling Pu, NpPu, NpPuAm, and all-TRU, section 5 provides mass fraction, gamma, and neutron emission for those four cases for MOX, heterogeneous LWR IMF (assemblies mixing IMF and UOX pins), and a CR=0.50 fast reactor. There are data for the first 10 LWR recycle passes and equilibrium. (4) Section 6 provides information on the cycle length, planned and unplanned outages, and TRU enrichment as a function of fast reactor TRU conversion ratio, as well as the dilution of TRU feedstock by uranium in making fast reactor fuel. (The recovered uranium is considered to be more pure than recovered TRU.) The latter parameter impacts the required TRU impurity limits specified by the Fuels Campaign. (5) Section 7 provides flows for an 800-tonne UOX separation plant. (6) To complement 'tornado' economic uncertainty diagrams, which show at a glance combined uncertainty information, section 9.2 has a new set of simpler graphs that show the impact on fuel cycle costs for once through, 1-tier, and 2-tier scenarios as a function of key input parameters.

  11. Updated as of 8.14.2014 for AY 2014-2015 APPLYING TO THE HEALTH SYSTEMS AND ORGANIZATIONAL

    E-Print Network [OSTI]

    Chapman, Michael S.

    Updated as of 8.14.2014 for AY 2014-2015 p. 1 APPLYING TO THE HEALTH SYSTEMS AND ORGANIZATIONAL LEADERSHIP (HSOL) PROGRAM Master of Nursing The Health Systems and Organizational Leadership program prepares nurses for roles in a variety of organizational settings from acute care, to long term care, community

  12. Dynamical System Analysis for a phantom model

    E-Print Network [OSTI]

    Nilanjana Mahata; Subenoy Chakraborty

    2014-04-24T23:59:59.000Z

    The paper deals with a dynamical system analysis related to phantom cosmological model . Here gravity is coupled to phantom scalar field having scalar coupling function and a potential. The field equations are reduced to an autonomous dynamical system by a suitable redefinition of the basic variables and assuming some suitable form of the potential function. Finally, critical points are evaluated, their nature have been analyzed and corresponding cosmological scenario has been discussed.

  13. Evaluation of the use of engineering judgements applied to analytical human reliablity analysis methods (HRA)

    E-Print Network [OSTI]

    Kohlhepp, Katherine D.

    2006-04-12T23:59:59.000Z

    Due to the scarcity of Human Reliability Analysis (HRA) data, one of the key elements of any HRA analysis is use of engineering judgment. The Electric Power Research Institute (EPRI) HRA Calculator guides the user through the steps of any HRA...

  14. Applied & Computational MathematicsChallenges for the Design and Control of Dynamic Energy Systems

    SciTech Connect (OSTI)

    Brown, D L; Burns, J A; Collis, S; Grosh, J; Jacobson, C A; Johansen, H; Mezic, I; Narayanan, S; Wetter, M

    2011-03-10T23:59:59.000Z

    The Energy Independence and Security Act of 2007 (EISA) was passed with the goal 'to move the United States toward greater energy independence and security.' Energy security and independence cannot be achieved unless the United States addresses the issue of energy consumption in the building sector and significantly reduces energy consumption in buildings. Commercial and residential buildings account for approximately 40% of the U.S. energy consumption and emit 50% of CO{sub 2} emissions in the U.S. which is more than twice the total energy consumption of the entire U.S. automobile and light truck fleet. A 50%-80% improvement in building energy efficiency in both new construction and in retrofitting existing buildings could significantly reduce U.S. energy consumption and mitigate climate change. Reaching these aggressive building efficiency goals will not happen without significant Federal investments in areas of computational and mathematical sciences. Applied and computational mathematics are required to enable the development of algorithms and tools to design, control and optimize energy efficient buildings. The challenge has been issued by the U.S. Secretary of Energy, Dr. Steven Chu (emphasis added): 'We need to do more transformational research at DOE including computer design tools for commercial and residential buildings that enable reductions in energy consumption of up to 80 percent with investments that will pay for themselves in less than 10 years.' On July 8-9, 2010 a team of technical experts from industry, government and academia were assembled in Arlington, Virginia to identify the challenges associated with developing and deploying newcomputational methodologies and tools thatwill address building energy efficiency. These experts concluded that investments in fundamental applied and computational mathematics will be required to build enabling technology that can be used to realize the target of 80% reductions in energy consumption. In addition the finding was that there are tools and technologies that can be assembled and deployed in the short term - the next 3-5 years - that can be used to significantly reduce the cost and time effective delivery of moderate energy savings in the U.S. building stock. Simulation tools, which are a core strength of current DOE computational research programs, provide only a part of the answer by providing a basis for simulation enabled design. New investments will be required within a broad dynamics and control research agenda which must focus on dynamics, control, optimization and simulation of multi-scale energy systems during design and operation. U.S. investments in high performance and high productivity computing (HP2C) should be leveraged and coupled with advances in dynamics and control to impact both the existing building stock through retrofits and also new construction. The essential R&D areas requiring investment are: (1) Characterizing the Dynamics of Multi-scale Energy Systems; (2) Control and Optimization Methodologies of Multi-scale Energy Systems Under Uncertainty; and (3) Multiscale Modeling and Simulation Enabled Design and Operation. The concept of using design and control specific computational tools is a new idea for the building industry. The potential payoffs in terms of accelerated design cycle times, performance optimization and optimal supervisory control to obtain and maintain energy savings are huge. Recent advances in computational power, computer science, and mathematical algorithms offer the foundations to address the control problems presented by the complex dynamics of whole building systems. The key areas for focus and associated metrics with targets for establishing competitiveness in energy efficient building design and operation are: (1) Scalability - Current methodology and tools can provide design guidance for very low energy buildings in weeks to months; what is needed is hours to days. A 50X improvement is needed. (2) Installation and commissioning - Current methodology and tools can target a three month window for commissioni

  15. A comparison of analog methods in heat flow analysis with simplified mathematica methods as applied to flight structures

    E-Print Network [OSTI]

    Murray, William

    1960-01-01T23:59:59.000Z

    in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE January 1960 Maj or Subj ect: Mechanical Engineering A COMPARISON OF ANALOG METHODS IN HEAT FLOW ANALYSIS WITH SIMPLIFIED MATHEMATICAL METHODS AS APPLIED TO FLIGHT STRUCTURES... and require lengthy and sometimes difficult mathematical computations to arrive at a solution. It is obvious that there is a need for a simple, rapid, and reliable method of solving complex problems involving heat flow. It is the purpose...

  16. Analysis of Photovoltaic System Energy Performance Evaluation Method

    SciTech Connect (OSTI)

    Kurtz, S.; Newmiller, J.; Kimber, A.; Flottemesch, R.; Riley, E.; Dierauf, T.; McKee, J.; Krishnani, P.

    2013-11-01T23:59:59.000Z

    Documentation of the energy yield of a large photovoltaic (PV) system over a substantial period can be useful to measure a performance guarantee, as an assessment of the health of the system, for verification of a performance model to then be applied to a new system, or for a variety of other purposes. Although the measurement of this performance metric might appear to be straight forward, there are a number of subtleties associated with variations in weather and imperfect data collection that complicate the determination and data analysis. A performance assessment is most valuable when it is completed with a very low uncertainty and when the subtleties are systematically addressed, yet currently no standard exists to guide this process. This report summarizes a draft methodology for an Energy Performance Evaluation Method, the philosophy behind the draft method, and the lessons that were learned by implementing the method.

  17. A method for analysis of expert committee decision-making applied to FDA medical device panels

    E-Print Network [OSTI]

    Broniatowski, David André, 1982-

    2010-01-01T23:59:59.000Z

    Committees of experts are critical for decision-making in engineering systems. This is because the complexity of these systems requires that information is pooled from across multiple specialties and domains of knowledge. ...

  18. SteamMaster: Steam System Analysis Software

    E-Print Network [OSTI]

    Wheeler, G.

    tool to facilitate the process. SteamMaster is based on an Excel spreadsheet with a Visual Basic interface to simplify system modeling and analysis. SteamMaster has many features and capabilities, including energy and cost savings calculations for five...

  19. Systems Long Term Exposure Program: Analysis of the First Year...

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

    Model (SAPM) 7 or the System Advisor Model (SAM) 8 were generated for use in future system analysis. A. System Descriptions The three technologies under investigation...

  20. analysis pgaa system: Topics by E-print Network

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

    Complex Adaptive System Division Center for Energy, Environmental & Economic Systems Analysis Energy systems are being privatized. Approach Argonne's Center for Energy,...

  1. analysis penetrometer system: Topics by E-print Network

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

    Complex Adaptive System Division Center for Energy, Environmental & Economic Systems Analysis Energy systems are being privatized. Approach Argonne's Center for Energy,...

  2. A threat analysis framework as applied to critical infrastructures in the Energy Sector.

    SciTech Connect (OSTI)

    Michalski, John T.; Duggan, David Patrick

    2007-09-01T23:59:59.000Z

    The need to protect national critical infrastructure has led to the development of a threat analysis framework. The threat analysis framework can be used to identify the elements required to quantify threats against critical infrastructure assets and provide a means of distributing actionable threat information to critical infrastructure entities for the protection of infrastructure assets. This document identifies and describes five key elements needed to perform a comprehensive analysis of threat: the identification of an adversary, the development of generic threat profiles, the identification of generic attack paths, the discovery of adversary intent, and the identification of mitigation strategies.

  3. This thesis applies model order reduction (MOR) techniques to large modern power systems that preserve particular dynamic characteristics of the original system. Depending upon the nature of the

    E-Print Network [OSTI]

    Kumar, M. Jagadesh

    in power systems have been explored and compared ­ Balanced truncation (BT) and Krylov subspace between the wind velocity/system frequency and the power output. These linear models, validated using DigABSTRACT This thesis applies model order reduction (MOR) techniques to large modern power systems

  4. Analysis of Petroleum Technology Advances Through Applied Research by Independent Oil Producers

    SciTech Connect (OSTI)

    Brashear, Jerry P.; North, Walter B.; Thomas Charles P.; Becker, Alan B.; Faulder, David D.

    2000-01-12T23:59:59.000Z

    Petroleum Technology Advances Through Applied Research by Independent Oil Producers is a program of the National Oil Research Program, U.S. Department of Energy. Between 1995 and 1998, the program competitively selected and cost-shared twenty-two projects with small producers. The purpose was to involve small independent producers in testing technologies of interest to them that would advance (directly or indirectly) one or more of four national program objectives: (1) Extend the productive life of reservoirs; (2) Increase production and/or reserves; (3) Improve environmental performance; and (4) Broaden the exchange of technology information.

  5. Coupled thermal analysis applied to the study of the rod ejection accident

    SciTech Connect (OSTI)

    Gonnet, M. [AREVA NP, TOUR AREVA - 1 Place Jean MILLIER, 92084 Paris La Defense Cedex (France)

    2012-07-01T23:59:59.000Z

    An advanced methodology for the assessment of fuel-rod thermal margins under RIA conditions has been developed by AREVA NP SAS. With the emergence of RIA analytical criteria, the study of the Rod Ejection Accident (REA) would normally require the analysis of each fuel rod, slice by slice, over the whole core. Up to now the strategy used to overcome this difficulty has been to perform separate analyses of sampled fuel pins with conservative hypotheses for thermal properties and boundary conditions. In the advanced methodology, the evaluation model for the Rod Ejection Accident (REA) integrates the node average fuel and coolant properties calculation for neutron feedback purpose as well as the peak fuel and coolant time-dependent properties for criteria checking. The calculation grid for peak fuel and coolant properties can be specified from the assembly pitch down to the cell pitch. The comparative analysis of methodologies shows that coupled methodology allows reducing excessive conservatism of the uncoupled approach. (authors)

  6. Statistical techniques applied to aerial radiometric surveys (STAARS): principal components analysis user's manual. [NURE program

    SciTech Connect (OSTI)

    Koch, C.D.; Pirkle, F.L.; Schmidt, J.S.

    1981-01-01T23:59:59.000Z

    A Principal Components Analysis (PCA) has been written to aid in the interpretation of multivariate aerial radiometric data collected by the US Department of Energy (DOE) under the National Uranium Resource Evaluation (NURE) program. The variations exhibited by these data have been reduced and classified into a number of linear combinations by using the PCA program. The PCA program then generates histograms and outlier maps of the individual variates. Black and white plots can be made on a Calcomp plotter by the application of follow-up programs. All programs referred to in this guide were written for a DEC-10. From this analysis a geologist may begin to interpret the data structure. Insight into geological processes underlying the data may be obtained.

  7. Applying geologic sensitivity analysis to environmental risk management: The financial implications

    SciTech Connect (OSTI)

    Rogers, D.T.

    1999-07-01T23:59:59.000Z

    The financial risks associated with environmental contamination can be staggering and are often difficult to identify and accurately assess. Geologic sensitivity analysis is gaining recognition as a significant and useful tool that can empower the user with crucial information concerning environmental risk management and brownfield redevelopment. It is particularly useful when (1) evaluating the potential risks associated with redevelopment of historical industrial facilities (brownfields) and (2) planning for future development, especially in areas of rapid development because the number of potential contaminating sources often increases with an increase in economic development. An examination of the financial implications relating to geologic sensitivity analysis in southeastern Michigan from numerous case studies indicate that the environmental cost of contamination may be 100 to 1,000 times greater at a geologically sensitive location compared to the least sensitive location. Geologic sensitivity analysis has demonstrated that near-surface geology may influence the environmental impact of a contaminated site to a greater extent than the amount and type of industrial development.

  8. Distribution System Analysis Tools for Studying High Penetration of PV

    E-Print Network [OSTI]

    Distribution System Analysis Tools for Studying High Penetration of PV with Grid Support Features Electric Energy System #12;#12;Distribution System Analysis Tools for Studying High Penetration of PV project titled "Distribution System Analysis Tools for Studying High Penetration of PV with Grid Support

  9. Procedures to identify Energy Conservation Opportunities applied to HVAC system: example of VSD of chilled water pumps

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Procedures to identify Energy Conservation Opportunities applied to HVAC system: example of VSD among the list of Energy Conservation Opportunities (137) identified in the HARMONAC project [1]. First of HVAC equipment using variable speed drive (VSD) is an Energy Conservation Opportunity (ECO) which can

  10. IRRADIANCE MAPS APPLIED FOR THE PERFORMANCE ASSESSMENT OF PV SYSTEMS -A CASE STUDY FOR THE GERMAN FEDERAL STATE OF SAXONY

    E-Print Network [OSTI]

    Heinemann, Detlev

    services, both general or dedicated to solar energy application, are in use. Examples for these typesIRRADIANCE MAPS APPLIED FOR THE PERFORMANCE ASSESSMENT OF PV SYSTEMS - A CASE STUDY FOR THE GERMAN, D-01314 Dresden, Germany ABSTRACT: For the estimation of the expected annual energy yield

  11. Applied Focused Ion Beam Techniques for Sample Preparation of Astromaterials for Integrated Nano-Analysis

    SciTech Connect (OSTI)

    Graham, G A; Teslich, N E; Kearsley, A T; Stadermann, F J; Stroud, R M; Dai, Z R; Ishii, H A; Hutcheon, I D; Bajt, S; Snead, C J; Weber, P K; Bradley, J P

    2007-02-20T23:59:59.000Z

    Sample preparation is always a critical step in study of micrometer sized astromaterials available for study in the laboratory, whether their subsequent analysis is by electron microscopy or secondary ion mass spectrometry. A focused beam of gallium ions has been used to prepare electron transparent sections from an interplanetary dust particle, as part of an integrated analysis protocol to maximize the mineralogical, elemental, isotopic and spectroscopic information extracted from one individual particle. In addition, focused ion beam techniques have been employed to extract cometary residue preserved on the rims and walls of micro-craters in 1100 series aluminum foils that were wrapped around the sample tray assembly on the Stardust cometary sample collector. Non-ideal surface geometries and inconveniently located regions of interest required creative solutions. These include support pillar construction and relocation of a significant portion of sample to access a region of interest. Serial sectioning, in a manner similar to ultramicrotomy, is a significant development and further demonstrates the unique capabilities of focused ion beam microscopy for sample preparation of astromaterials.

  12. An analysis of fluid flow by electrical analogy as applied to air ducts

    E-Print Network [OSTI]

    Howard, Charles Pinto

    1951-01-01T23:59:59.000Z

    system, but is is always desirable to supply them. (4) Static regain method. This method employs the static pressure regain as the velocity is reduced in a duct sys- tem. One of the most satisfactory modifications consists of reducing the velocity.... . . . . . . . . . 29 1, Recommended and Maximum Duct Velocities ~ . ~, . . . ~ ~ 2. Results for Constant Pressure Drop Method. . . . . . . . 14 3. Results of Total Pressure Drop Method. . . . . . ~. . . 20 Results of Trial I for Metwork Calculator AppU. ed...

  13. K West integrated water treatment system subproject safety analysis document

    SciTech Connect (OSTI)

    SEMMENS, L.S.

    1999-02-24T23:59:59.000Z

    This Accident Analysis evaluates unmitigated accident scenarios, and identifies Safety Significant and Safety Class structures, systems, and components for the K West Integrated Water Treatment System.

  14. NREL's System Advisor Model Simplifies Complex Energy Analysis...

    Office of Scientific and Technical Information (OSTI)

    NREL's System Advisor Model Simplifies Complex Energy Analysis (Fact Sheet) Re-direct Destination: NREL has developed a tool -- the System Advisor Model (SAM) -- that can help...

  15. Life-Cycle Analysis Results of Geothermal Systems in Comparison...

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

    & Publications Life-Cycle Analysis Results of Geothermal Systems in Comparison to Other Power Systems Water Use in the Development and Operation of Geothermal Power Plants Water...

  16. analysis system midas: Topics by E-print Network

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

    data of the CHAMP satellite. Comparisons are made between vertical electron 14 Systems Analysis Systems Integration Renewable Energy Websites Summary: Domestic energy-based...

  17. analysis system modeling: Topics by E-print Network

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

    Newcastle upon Tyne, University of 98 EquationFree System-Level Dynamic Modeling and Analysis in Energy Processing Engineering Websites Summary: Equation-Free System-Level...

  18. An Assessment of Economic Analysis Methods for Cogeneration Systems

    E-Print Network [OSTI]

    Bolander, J. N.; Murphy, W. E.; Turner, W. D.

    1985-01-01T23:59:59.000Z

    Cogeneration feasibility studies were conducted for eleven state agencies of Texas. A net present value (NPV) analysis was used to evaluate candidate cogeneration systems and select the optimum system. CELCAP, an hour-by-hour cogeneration analysis...

  19. Automotive and MHE Fuel Cell System Cost Analysis (Text Version...

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

    on previous fuel cell cost analysis studies that we've done for the Department of Energy, beginning with a market analysis, and then completing a system design. The system...

  20. Incorporating HVDC's into monitoring and power system analysis

    E-Print Network [OSTI]

    Krishnaswamy, Vikram

    2002-01-01T23:59:59.000Z

    This thesis attempts to study the effect of incorporating HVDC's into monitoring and power system analysis. Power system analysis, including load flow and stability studies, and monitoring defines a complete cycle of the impact of HVDC in a power...

  1. Analysis of a piping system for requalification

    SciTech Connect (OSTI)

    Hsieh, B.J.; Tang, Yu.

    1992-01-01T23:59:59.000Z

    This paper discusses the global stress analysis required for the seismic/structural requalification of a reactor secondary piping system in which minor defects (flaws) were discovered during a detailed inspection. The flaws in question consisted of weld imperfections. Specifically, it was necessary to establish that the stresses at the flawed sections did not exceed the allowables and that the fatigue life remained within acceptable limits. At the same time the piping system had to be qualified for higher earthquake loads than those used in the original design. To accomplish these objectives the nominal stress distributions in the piping system under the various loads (dead load, thermal load, wind load and seismic load) were determined. First a best estimate finite element model was developed and calculations were performed using the piping analysis modules of the ANSYS Computer Code. Parameter studies were then performed to assess the effect of physically reasonable variations in material, structural, and boundary condition characteristics. The nominal stresses and forces so determined, provided input for more detailed analyses of the flawed sections. Based on the reevaluation, the piping flaws were judged to be benign, i.e., the piping safety margins were acceptable inspite of the increased seismic demand. 13 refs.

  2. Analysis of a piping system for requalification

    SciTech Connect (OSTI)

    Hsieh, B.J.; Tang, Yu

    1992-05-01T23:59:59.000Z

    This paper discusses the global stress analysis required for the seismic/structural requalification of a reactor secondary piping system in which minor defects (flaws) were discovered during a detailed inspection. The flaws in question consisted of weld imperfections. Specifically, it was necessary to establish that the stresses at the flawed sections did not exceed the allowables and that the fatigue life remained within acceptable limits. At the same time the piping system had to be qualified for higher earthquake loads than those used in the original design. To accomplish these objectives the nominal stress distributions in the piping system under the various loads (dead load, thermal load, wind load and seismic load) were determined. First a best estimate finite element model was developed and calculations were performed using the piping analysis modules of the ANSYS Computer Code. Parameter studies were then performed to assess the effect of physically reasonable variations in material, structural, and boundary condition characteristics. The nominal stresses and forces so determined, provided input for more detailed analyses of the flawed sections. Based on the reevaluation, the piping flaws were judged to be benign, i.e., the piping safety margins were acceptable inspite of the increased seismic demand. 13 refs.

  3. Research paper Os decay system applied to dating platinum-group element

    E-Print Network [OSTI]

    Reiners, Peter W.

    Dating Geochronology Bushveld PGM We evaluate the 190 Pt­186 Os decay system, measured by laser ablation. The 190 Pt­186 Os decay system, measured by laser ablation-multi- collector-inductively coupled plasma

  4. A comprehensive approach to complex system product development : operations management tools applied to automotive design

    E-Print Network [OSTI]

    Noor, Muhammad Jehanzeb, 1982-

    2007-01-01T23:59:59.000Z

    The research is based on observations made over a two-year period with the Closures Systems Integrators or CSIs (supervisory engineers who coordinate attribute balance and system decisions for conflicting door attributes) ...

  5. Biologically-based signal processing system applied to noise removal for signal extraction

    DOE Patents [OSTI]

    Fu, Chi Yung; Petrich, Loren I.

    2004-07-13T23:59:59.000Z

    The method and system described herein use a biologically-based signal processing system for noise removal for signal extraction. A wavelet transform may be used in conjunction with a neural network to imitate a biological system. The neural network may be trained using ideal data derived from physical principles or noiseless signals to determine to remove noise from the signal.

  6. Decision Analysis Science Modeling for Application and Fielding Selection Applied to Concrete Decontamination Technologies

    SciTech Connect (OSTI)

    Ebadian, M.A. Ross, T.L.

    1998-01-01T23:59:59.000Z

    Concrete surfaces contaminated with radionuclides present a significant challenge during the decontamination and decommissioning (D and D) process. As structures undergo D and D, coating layers and/or surface layers of the concrete containing the contaminants must be removed for disposal in such a way as to present little to no risk to human health or the environment. The selection of a concrete decontamination technology that is safe, efficient, and cost-effective is critical to the successful D and D of contaminated sites. To support U.S. Department of Energy (DOE) Environmental Management objectives and to assist DOE site managers in the selection of the best-suited concrete floor decontamination technology(s) for a given site, two innovative and three baseline technologies have been assessed under standard, non-nuclear conditions at the Hemispheric Center for Environmental Technology (HCET) at Florida International University (FIU). The innovative technologies assessed include the Pegasus Coating Removal System and Textron's Electro-Hydraulic Scabbling System. The three baseline technologies assessed include: the Wheelabrator Blastrac model 1-15D, the NELCO Porta Shot Blast{trademark} model GPx-1O-18 HO Rider, and the NELCO Porta Shot Blast{trademark} model EC-7-2. These decontamination technology assessments provide directly comparable performance data that have previously been available for only a limited number of technologies under restrictive site-specific constraints. Some of the performance data collected during these technology assessments include: removal capability, production rate, removal gap, primary and secondary waste volumes, and operation and maintenance requirements. The performance data generated by this project is intended to assist DOE site managers in the selection of the safest, most efficient, and cost-effective decontamination technologies to accomplish their remediation objectives.

  7. Stability analysis of a nonlinear coupled-core reactor control system

    SciTech Connect (OSTI)

    Tsay, T.S.; Han, K.W.

    1987-12-01T23:59:59.000Z

    In this paper, stability-equation method is applied to the analysis of a large coupled-core reactor control system having multiple nonlinearities and adjustable parameters. The characteristics of the limit-cycle and the asymptotically stable regions can be easily defined in a parameter plane. A numerical example is given and comparisons with other methods in current literature are made.

  8. Difference of Degradation Schemes among Operating Systems --Experimental analysis for web application servers --

    E-Print Network [OSTI]

    Chiba, Shigeru

    Difference of Degradation Schemes among Operating Systems -- Experimental analysis for web degradation is critical ability of highly avail- able middleware such as a web application server but naive graceful degradation is often unsatisfactory. If a web appli- cation server provides multiple services

  9. System Analysis Projects | Department of Energy

    Office of Environmental Management (EM)

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33Frequently AskedEnergyIssues DOE'sSummaryDepartment of SustainXBetterProjects System Analysis

  10. Systems Analysis Success Stories | Department of Energy

    Office of Environmental Management (EM)

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33Frequently AskedEnergyIssues DOE'sSummaryDepartment of SustainXBetterProjectsSystems Analysis

  11. Systems analysis and futuristic designs of advanced biofuel factory concepts.

    SciTech Connect (OSTI)

    Chianelli, Russ; Leathers, James; Thoma, Steven George; Celina, Mathias Christopher; Gupta, Vipin P.

    2007-10-01T23:59:59.000Z

    The U.S. is addicted to petroleum--a dependency that periodically shocks the economy, compromises national security, and adversely affects the environment. If liquid fuels remain the main energy source for U.S. transportation for the foreseeable future, the system solution is the production of new liquid fuels that can directly displace diesel and gasoline. This study focuses on advanced concepts for biofuel factory production, describing three design concepts: biopetroleum, biodiesel, and higher alcohols. A general schematic is illustrated for each concept with technical description and analysis for each factory design. Looking beyond current biofuel pursuits by industry, this study explores unconventional feedstocks (e.g., extremophiles), out-of-favor reaction processes (e.g., radiation-induced catalytic cracking), and production of new fuel sources traditionally deemed undesirable (e.g., fusel oils). These concepts lay the foundation and path for future basic science and applied engineering to displace petroleum as a transportation energy source for good.

  12. Input-output Analysis of Quantum Finite-level Systems in Response to Single Photon States

    E-Print Network [OSTI]

    Yu Pan; Guofeng Zhang; Matthew R. James

    2015-01-01T23:59:59.000Z

    Single photon states, which carry quantum information and coherently interact with quantum systems, are vital to the realization of all-optical quantum networks and quantum memory. In this paper we derive the conditions that enable an exact analysis of the response of passive quantum finite-level systems under the weak driving of single photon input. We show that when a class of finite level systems is driven by single photon inputs, expressions for the output states may be derived exactly using linear systems transfer functions. This removes the need for physical approximations such as weak excitation limit in the analysis of quantum nonlinear systems under single photon driving. We apply this theory to the analysis of a single photon switch. The input-output relations are consistent with the existing results in the study of few photon transport through finite-level systems.

  13. Applying Systems Engineering in a Renewable Energy Research and Development Environment: Preprint

    SciTech Connect (OSTI)

    Snyder, N.; Antkowiak, M.

    2010-04-01T23:59:59.000Z

    This paper examines lessons learned in systems engineering research and development at the National Renewable Energy Laboratory and explores new ideas for future process enhancements.

  14. Devineau et al 1 Applied Clay Science, 2006, 31, 76-84 In situ neutron diffraction analysis of the influence of geometric confinement on

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Devineau et al 1 Applied Clay Science, 2006, 31, 76-84 In situ neutron diffraction analysis 2 Applied Clay Science, 2006, 31, 76-84 Abstract The swelling properties of a bentonite MX-80 in constrained pellets deviates from that observed for free pellets. Reorientation phenomena of clay layers were

  15. Review of Methods of Power-Spectrum Analysis as Applied to Super-Kamiokande Solar Neutrino Data

    E-Print Network [OSTI]

    P. A. Sturrock

    2004-08-02T23:59:59.000Z

    To help understand why different published analyses of the Super-Kamiokande solar neutrino data arrive at different conclusions, we have applied six different methods to a standardized problem. The key difference between the various methods rests in the amount of information that each processes. A Lomb-Scargle analysis that uses the mid times of the time bins and ignores experimental error estimates uses the least information. A likelihood analysis that uses the start times, end times, and mean live times, and takes account of the experimental error estimates, makes the greatest use of the available information. We carry out power-spectrum analyses of the Super-Kamiokande 5-day solar neutrino data, using each method in turn, for a standard search band (0 to 50 yr-1). For each method, we also carry out a fixed number (10,000) of Monte-Carlo simulations for the purpose of estimating the significance of the leading peak in each power spectrum. We find that, with one exception, the results of these calculations are compatible with those of previously published analyses. (We are unable to replicate Koshio's recent results.) We find that the significance of the peaks at 9.43 yr-1 and at 43.72 yr-1 increases progressively as one incorporates more information into the analysis procedure.

  16. Code C# for chaos analysis of relativistic many-body systems

    E-Print Network [OSTI]

    I. V. Grossu; C. Besliu; Al. Jipa; D. Felea; C. C. Bordeianu; E. Stan; T. Esanu

    2010-03-16T23:59:59.000Z

    This work presents a new Microsoft Visual C# .NET code library, conceived as a general object oriented solution for chaos analysis of three-dimensional, relativistic many-body systems. In this context, we implemented the Lyapunov exponent and the "fragmentation level" (defined using the graph theory and the Shannon entropy). Inspired by existing studies on billiard nuclear models and clusters of galaxies, we tried to apply the virial theorem for a simplified many-body system composed by nucleons. A possible application of the "virial coefficient" to the stability analysis of chaotic systems is also discussed.

  17. Applying OMG D&C Specification and ECA Rules for Autonomous Distributed Component-based Systems

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    ´er´emy Dubus, Philippe Merle INRIA-Futurs Projet Jacquard / LIFL Universit´e des Sciences et Technologies de used to ease design of complex distributed systems. Nevertheless, at runtime, models remain useless of the designer is drastically simplified. Unfortunately, the models of an application are useless once the system

  18. Lessons Learned from the Alternative Fuels Experience and How They Apply to the Development of a Hydrogen-Fueled Transportation System

    SciTech Connect (OSTI)

    Melendez, M.; Theis, K.; Johnson, C.

    2007-08-01T23:59:59.000Z

    Report describes efforts to deploy alternative transportation fuels and how those experiences might apply to a hydrogen-fueled transportation system.

  19. Effects of systemic insecticides applied to cotton on Campoletis perdistinctus (Viereck)

    E-Print Network [OSTI]

    Cate, James Richard

    1968-01-01T23:59:59.000Z

    phosphate) was significantly more toxic to C. ~erdlstlnctus adults than TemilP (2-methyl-2-(. . ethylthio) propionaldehyde 0- (methylcarbamoyl) oxlme) or d1sulfoton. In greenhouse stud1es, cotton plants treated with soil applications of d1sulfoton had...). . . . . . . . . . 1 d lty f C. ~d1 tl t d lt t offered various food substances. . . . . . . . . . . 15 16 Toxicity of Azodrin, Temik and disulfoton applied topically to mixed sexes of C. erdistinctus adults 20 Toxi. c1ty of Azodr1n, Temik and disulfoton fed...

  20. Effects of systemic insecticides applied to cotton on Campoletis perdistinctus (Viereck) 

    E-Print Network [OSTI]

    Cate, James Richard

    1968-01-01T23:59:59.000Z

    phosphate) was significantly more toxic to C. ~erdlstlnctus adults than TemilP (2-methyl-2-(. . ethylthio) propionaldehyde 0- (methylcarbamoyl) oxlme) or d1sulfoton. In greenhouse stud1es, cotton plants treated with soil applications of d1sulfoton had...). . . . . . . . . . 1 d lty f C. ~d1 tl t d lt t offered various food substances. . . . . . . . . . . 15 16 Toxicity of Azodrin, Temik and disulfoton applied topically to mixed sexes of C. erdistinctus adults 20 Toxi. c1ty of Azodr1n, Temik and disulfoton fed...

  1. Generalized Lyapunov Function for Stability Analysis of Interconnected Power Systems

    E-Print Network [OSTI]

    Pota, Himanshu Roy

    Generalized Lyapunov Function for Stability Analysis of Interconnected Power Systems M. A. Mahmud for formulating generalized Lyapunov function for the stability analysis of interconnected power systems. Lyapunov function is formulated based on the total energy of power system where the system is considered as a single

  2. Hazard Analysis of Complex Spacecraft Using Systems-Theoretic Process Analysis

    E-Print Network [OSTI]

    Ishimatsu, Takuto

    A new hazard analysis technique, called systems-theoretic process analysis, is capable of identifying potential hazardous design flaws, including software and system design errors and unsafe interactions among multiple ...

  3. Cost analysis of energy storage systems for electric utility applications

    SciTech Connect (OSTI)

    Akhil, A. [Sandia National Lab., Albuquerque, NM (United States); Swaminathan, S.; Sen, R.K. [R.K. Sen & Associates, Inc., Bethesda, MD (United States)

    1997-02-01T23:59:59.000Z

    Under the sponsorship of the Department of Energy, Office of Utility Technologies, the Energy Storage System Analysis and Development Department at Sandia National Laboratories (SNL) conducted a cost analysis of energy storage systems for electric utility applications. The scope of the study included the analysis of costs for existing and planned battery, SMES, and flywheel energy storage systems. The analysis also identified the potential for cost reduction of key components.

  4. Extending and automating a systems-theoretic hazard analysis for requirements generation and analysis

    E-Print Network [OSTI]

    Thomas, John P., IV

    2013-01-01T23:59:59.000Z

    Systems Theoretic Process Analysis (STPA) is a powerful new hazard analysis method designed to go beyond traditional safety techniques-such as Fault Tree Analysis (FTA)-that overlook important causes of accidents like ...

  5. Defending against the Unknown Enemy: Applying FlipIt to System Security

    E-Print Network [OSTI]

    Bowers, Kevin D.

    2012-01-01T23:59:59.000Z

    Most cryptographic systems carry the basic assumption that entities are able to preserve the secrecy of their keys. With attacks today showing ever increasing sophistication, however, this tenet is eroding. “Advanced ...

  6. Rule Based Energy Management and Reporting System (EMRS) Applied to a Large Utility Power Station Complex

    E-Print Network [OSTI]

    Bamber, D.; Childress, R.; Robinson, J.

    2004-01-01T23:59:59.000Z

    Deregulation of electricity and rising fuel costs are causing renewed interest in Energy Management Systems (EMS) to service both the utility and private sectors. This paper details a case study of the successful integration of a new class of rule...

  7. Rule-Based Energy Management System Applied to Large Industrial Facilities

    E-Print Network [OSTI]

    Gauthier, M.; Childress, R. L.

    Deregulation of electricity and rising fuel costs are causing renewed interest in Energy Management Systems (EMS). This paper details the results of integrating a rule-based EMS controller at a Pulp and Paper Mill and additional findings from...

  8. NETL's High-Speed Imaging System Successfully Applied in Medicine, Broad Spectrum of Industry

    Broader source: Energy.gov [DOE]

    A groundbreaking Department of Energy-developed imaging system originally designed to help create cleaner fossil energy processes is finding successful applications in a wide range of medical, chemical processing, energy, and other industries.

  9. EA Systems Examples Induction and Recursion Length Measuring the Universe Analysis Number systems of different lengths,

    E-Print Network [OSTI]

    Forster, T.E.

    EA Systems Examples Induction and Recursion Length Measuring the Universe Analysis Number systems of Mathematics University of Bristol April 21, 2008 Richard.Pettigrew@bris.ac.uk Natural number systems and infinitesimal analysis #12;EA Systems Examples Induction and Recursion Length Measuring the Universe Analysis

  10. EnviroDB: Applied Database Systems Design for the National Environmental Assessment Toolkit (NEAT)

    E-Print Network [OSTI]

    Kim, S. H.; Srivastava, V.; Aziz, A.

    2005-01-01T23:59:59.000Z

    compared to other data model designs. INTRODUCTION Post Occupancy Evaluation (POE) and building diagnostics are critically important in determining the overall building performance with respect to environmental quality, such as thermal, IAQ... single factorial analysis (i.e. how is the occupants’ satisfaction level as the light level gets higher) is likely to be prevalent. However, occupants’ sensation and productivity would not be proportionally controlled by a single factor unless...

  11. Local Fourier analysis for staggered systems of PDEs

    E-Print Network [OSTI]

    MacLachlan, Scott

    Local Fourier analysis for staggered systems of PDEs Scott MacLachlan scott.maclachlan@tufts.edu Tufts University and Kees Oosterlee TU-Delft and CWI April 10, 2008 Local Fourier analysis for staggered of complementary processes · Relaxation · Coarse-grid correction Local Fourier analysis for staggered systems

  12. LCA Applied to Perennial Cropping Systems: a Review Focused on the Farm Stage C. Bessou 1

    E-Print Network [OSTI]

    winter as underground storage or perennating organs, or woody perennials whose tissues persist above for the perennial cropping systems, and methods and data for field emissions helped reveal the more critical issues of crop managements and field emissions over several years. · Conclusions: According to the reviewed

  13. LCA Applied to Perennial Cropping Systems: a Review Focused on the Farm Stage C. Bessou 1

    E-Print Network [OSTI]

    Boyer, Edmond

    are either herbaceous which survive winter as underground storage or perennating organs, or woody perennials, modelling approach for the perennial cropping systems, and methods and data for field emissions helped with a comprehensive inventory of crop managements and field emissions over several years. · Conclusions: According

  14. Applying Stochastic Modeling to Bus Arbitration for Systems-on-Chip

    E-Print Network [OSTI]

    Doboli, Simona

    in the cost function do not vary dynamically thus making it difficult to calculate system latencies and power architectures. Many problems in architecture selection, power estimation and power management can be studied dynamic power management has been discussed extensively by Pedram et al. in [2] [3]. The use of CTMDP

  15. Applying Stochastic Modeling to Bus Arbitration for Network-on-Chip Systems

    E-Print Network [OSTI]

    Doboli, Simona

    in the cost function do not vary dynamically thus making it difficult to calculate system latencies and power in architecture selection, power estimation and power management can be studied by simulation meth- ods Decision Pro- cesses(CTMDP) and Generalized Stochastic Petri Nets to do dynamic power management has been

  16. Jan Sieber and Bernd Krauskopf (Bristol Centre for Applied Nonlinear Mathematics) Chaos induced by delay in a linearly controlled system

    E-Print Network [OSTI]

    Mumby, Peter J.

    by delay in a linearly controlled system Outline Sketch of modelled setup t Chaos Bifurcation analysis of an inverted pendulum that is balanced with linear feedback control. References ( www.enm.bris.ac.uk/anm) J cos (t) ¨(t) = 2 3 L F where F is a delayed linear proportional- plus-derivative feedback control

  17. Applying Human Factors Evaluation and Design Guidance to a Nuclear Power Plant Digital Control System

    SciTech Connect (OSTI)

    Thomas Ulrich; Ronald Boring; William Phoenix; Emily Dehority; Tim Whiting; Jonathan Morrell; Rhett Backstrom

    2012-08-01T23:59:59.000Z

    The United States (U.S.) nuclear industry, like similar process control industries, has moved toward upgrading its control rooms. The upgraded control rooms typically feature digital control system (DCS) displays embedded in the panels. These displays gather information from the system and represent that information on a single display surface. In this manner, the DCS combines many previously separate analog indicators and controls into a single digital display, whereby the operators can toggle between multiple windows to monitor and control different aspects of the plant. The design of the DCS depends on the function of the system it monitors, but revolves around presenting the information most germane to an operator at any point in time. DCSs require a carefully designed human system interface. This report centers on redesigning existing DCS displays for an example chemical volume control system (CVCS) at a U.S. nuclear power plant. The crucial nature of the CVCS, which controls coolant levels and boration in the primary system, requires a thorough human factors evaluation of its supporting DCS. The initial digital controls being developed for the DCSs tend to directly mimic the former analog controls. There are, however, unique operator interactions with a digital vs. analog interface, and the differences have not always been carefully factored in the translation of an analog interface to a replacement DCS. To ensure safety, efficiency, and usability of the emerging DCSs, a human factors usability evaluation was conducted on a CVCS DCS currently being used and refined at an existing U.S. nuclear power plant. Subject matter experts from process control engineering, software development, and human factors evaluated the DCS displays to document potential usability issues and propose design recommendations. The evaluation yielded 167 potential usability issues with the DCS. These issues should not be considered operator performance problems but rather opportunities identified by experts to improve upon the design of the DCS. A set of nine design recommendations was developed to address these potential issues. The design principles addressed the following areas: (1) color, (2) pop-up window structure, (3) navigation, (4) alarms, (5) process control diagram, (6) gestalt grouping, (7) typography, (8) terminology, and (9) data entry. Visuals illustrating the improved DCS displays accompany the design recommendations. These nine design principles serve as the starting point to a planned general DCS style guide that can be used across the U.S. nuclear industry to aid in the future design of effective DCS interfaces.

  18. Jet Riemann-Lagrange Geometry Applied to Evolution DEs Systems from Economy

    E-Print Network [OSTI]

    Neagu, Mircea

    2007-01-01T23:59:59.000Z

    The aim of this paper is to construct a natural Riemann-Lagrange differential geometry on 1-jet spaces, in the sense of nonlinear connections, generalized Cartan connections, d-torsions, d-curvatures, jet electromagnetic fields and jet Yang-Mills energies, starting from some given non-linear evolution DEs systems modelling economic phenomena, like the Kaldor model of the bussines cycle or the Tobin-Benhabib-Miyao model regarding the role of money on economic growth.

  19. Traffic Analysis: From Stateful Firewall to Network Intrusion Detection System

    E-Print Network [OSTI]

    Chiueh, Tzi-cker

    1 Traffic Analysis: From Stateful Firewall to Network Intrusion Detection System Fanglu Guo Tzi normalization. Index Terms Packet (traffic) analysis, stateful firewall, network intrusion detection system intrusion detection system (NIDS). Stateful firewall analyzes packets up to their layer 4 headers while NIDS

  20. Systems Analysis Department Annual Report 2001

    E-Print Network [OSTI]

    benchmarking analysis to the Danish district heating sector Technology Scenarios 17 Sensor Technology Foresight

  1. Applying System Execution Modeling Tools to Evaluate Enterprise Distributed Real-time and Embedded System QoS

    E-Print Network [OSTI]

    Schmidt, Douglas C.

    System QoS John M. Slaby Raytheon Portsmouth, RI, USA john_m_slaby@raytheon.com Steve Baker Raytheon Portsmouth, RI, USA steven_d_baker@raytheon.com James Hill Vanderbilt University Nashville, TN, USA j

  2. Noise study of the digital seismic system amplifiers applied to earth noise measurements

    SciTech Connect (OSTI)

    Valk, D.

    1982-08-31T23:59:59.000Z

    Some major noise problems afflicting the Digital Seismic System are briefly examined for the purpose of improving the signal-to-noise ratio for earth noise measurements. After concluding that the Tustin Electronics Co. 1560 instrumentation amplifiers presently being used in the system obscure the earth noise data, a comprehensive study (part experimental and part theoretical) of amplifier noise is performed. Noise curves in the approximate frequency range of 0.01 to 50 Hz for the Tustin amplifiers as well as for a new design based on the PMI SSS725 operational amplifier are experimentally determined. The curves, which include noise current and noise voltage densities as well as total noise, are compared to each other, and to the Peterson low earth noise curve. The comparisons are done with amplifier inputs shorted, connected to one and then two 500-..cap omega.. seismometer data coils, and connected to one 20-k..cap omega.. seismometer data coil. The total noise curve of the new amplifier is found to shift further below that of the Tustin amplifier as data coil resistance is increased. A goal of lowering amplifier noise 10 dB or more below the Peterson earth noise power density curve for frequencies greater than .03 Hz is desired. The new amplifier design, used in conjunction with a 20-k..cap omega.. data coil, is found to satisfy this 10 dB or more signal-to-noise ratio for earth noise measurements. It is also found that the difference between earth noise and new amplifier noise magnitudes is increased as data coil resistance is increased.

  3. Hydrogen Storage Systems Analysis Working Group Meeting: Summary...

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

    Summary of June 11, 2008, biannual meeting of the Hydrogen Storage Systems Analysis Working Group. ssawgsummaryreport0608.pdf More Documents & Publications Hydrgoen Storage...

  4. Hydrogen Storage Systems Analysis Working Group Meeting: Summary...

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

    to bring together the DOE research community involved in systems analysis of hydrogen storage materials and processes. ssawgsummaryreport.pdf More Documents & Publications...

  5. analysis system tool: Topics by E-print Network

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

    to analyse LCA variability of energy systems Physics Websites Summary: variability in LCA are sensitivity analysis (SA). However, when dealing with environmental impact...

  6. Office of Energy Policy and Systems Analysis Site Upgrade

    Broader source: Energy.gov [DOE]

    Office of Energy Policy and Systems Analysis site is currently being upgraded to better serve on audience. Please check back shortly.

  7. advanced system analysis: Topics by E-print Network

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

    based on metric Balazinska, Magdalena 3 Advanced holographic nondestructive testing system for residual stress analysis CERN Preprints Summary: The design and operating of a...

  8. Webinar: Automotive and MHE Fuel Cell System Cost Analysis

    Broader source: Energy.gov [DOE]

    Video recording and text version of the webinar titled, Automotive and MHE Fuel Cell System Cost Analysis, originally presented on April 16, 2013.

  9. Hydrogen Storage Systems Analysis Working Group Meeting: Summary...

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

    Hydrogen Storage Systems Analysis Working Group Meeting Argonne DC Offices L'Enfant Plaza, Washington, DC December 4, 2007 SUMMARY REPORT Compiled by Romesh Kumar Argonne National...

  10. Roughness analysis applied to niobium thin films grown on MgO(001) surfaces for superconducting radio frequency cavity applications

    SciTech Connect (OSTI)

    D. B. Beringer, W. M. Roach, C. Clavero, C. E. Reece, R. A. Lukaszew

    2013-02-01T23:59:59.000Z

    This paper describes surface studies to address roughness issues inherent to thin film coatings deposited onto superconducting radio frequency (SRF) cavities. This is particularly relevant for multilayered thin film coatings that are being considered as a possible scheme to overcome technical issues and to surpass the fundamental limit of ?50??MV/m accelerating gradient achievable with bulk niobium. In 2006, a model by Gurevich [ Appl. Phys. Lett. 88 012511 (2006)] was proposed to overcome this limit that involves coating superconducting layers separated by insulating ones onto the inner walls of the cavities. Thus, we have undertaken a systematic effort to understand the dynamic evolution of the Nb surface under specific deposition thin film conditions onto an insulating surface in order to explore the feasibility of the proposed model. We examine and compare the morphology from two distinct Nb/MgO series, each with its own epitaxial registry, at very low growth rates and closely examine the dynamical scaling of the surface features during growth. Further, we apply analysis techniques such as power spectral density to the specific problem of thin film growth and roughness evolution to qualify the set of deposition conditions that lead to successful SRF coatings.

  11. Technology Portfolio Planning by Weighted Graph Analysis of System Architectures

    E-Print Network [OSTI]

    de Weck, Olivier L.

    Technology Portfolio Planning by Weighted Graph Analysis of System Architectures Peter Davison and Bruce Cameron Massachusetts Institute of Technology, Cambridge, MA 02139 Edward F. Crawley Skolkovo Institute of Science and Technology, Skolkovo 143025, Russia Abstract5 Many systems undergo significant

  12. analysis system retas: Topics by E-print Network

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

    para toda sequencia (xn)nN em D(f)x0, com lim n Oquendo, Higidio Portillo 3 Systems Analysis Systems Integration Renewable Energy Websites Summary: Domestic energy-based...

  13. Availability Analysis of the Ventilation Stack CAM Interlock System

    E-Print Network [OSTI]

    Young, J

    2000-01-01T23:59:59.000Z

    Ventilation Stack Continuous Air Monitor (CAM) Interlock System failure modes, failure frequencies, and system availability have been evaluated for the RPP. The evaluation concludes that CAM availability is as high as assumed in the safety analysis and that the current routine system surveillance is adequate to maintain this availability credited in the safety analysis, nor is such an arrangement predicted to significantly improve system availability.

  14. Visualizations for Power System Contingency Analysis Data

    E-Print Network [OSTI]

    whether the system is secure. With the global trend towards deregulation in the power system industry increasing. Not only has deregulation resulted in much larger system model sizes, but also CA is computed

  15. Sensitivity analysis of oscillating hybrid systems

    E-Print Network [OSTI]

    Saxena, Vibhu Prakash

    2010-01-01T23:59:59.000Z

    Many models of physical systems oscillate periodically and exhibit both discrete-state and continuous-state dynamics. These systems are called oscillating hybrid systems and find applications in diverse areas of science ...

  16. Power System Probabilistic and Security Analysis on Commodity High Performance Computing Systems

    E-Print Network [OSTI]

    Franchetti, Franz

    power system infrastructures also requires merging of offline security analyses into on- line operationPower System Probabilistic and Security Analysis on Commodity High Performance Computing Systems tools for power system probabilistic and security analysis: 1) a high performance Monte Carlo simulation

  17. Sensitivity Analysis of Wind Plant Performance to Key Turbine Design Parameters: A Systems Engineering Approach; Preprint

    SciTech Connect (OSTI)

    Dykes, K.; Ning, A.; King, R.; Graf, P.; Scott, G.; Veers, P.

    2014-02-01T23:59:59.000Z

    This paper introduces the development of a new software framework for research, design, and development of wind energy systems which is meant to 1) represent a full wind plant including all physical and nonphysical assets and associated costs up to the point of grid interconnection, 2) allow use of interchangeable models of varying fidelity for different aspects of the system, and 3) support system level multidisciplinary analyses and optimizations. This paper describes the design of the overall software capability and applies it to a global sensitivity analysis of wind turbine and plant performance and cost. The analysis was performed using three different model configurations involving different levels of fidelity, which illustrate how increasing fidelity can preserve important system interactions that build up to overall system performance and cost. Analyses were performed for a reference wind plant based on the National Renewable Energy Laboratory's 5-MW reference turbine at a mid-Atlantic offshore location within the United States.

  18. THREE DIMENSIONAL VISUALIZATIONS FOR POWER SYSTEM CONTINGENCY ANALYSIS VOLTAGE DATA

    E-Print Network [OSTI]

    that the power systems are now often operated closer to their limits to maximum transmission system utilizationTHREE DIMENSIONAL VISUALIZATIONS FOR POWER SYSTEM CONTINGENCY ANALYSIS VOLTAGE DATA Y. Sun IEEE security assessment is critical for detecting underlying problems in a power system. More frequent CA

  19. UNCORRECTED 2 Coordination in irrigation systems: An analysis

    E-Print Network [OSTI]

    Tesfatsion, Leigh

    UNCORRECTED PROOF 1 2 Coordination in irrigation systems: An analysis 3 of the Lansing­Kremer model;UNCORRECTED PROOF 25 argued that a central control was inevitable for larger irrigation systems and hypoth- 26, there are various examples of complex irrigation systems and drainage systems 28 that have evolved without central

  20. AC system stability analysis and assessment for Shipboard Power Systems 

    E-Print Network [OSTI]

    Qi, Li

    2006-04-12T23:59:59.000Z

    The electric power systems in U.S. Navy ships supply energy to sophisticated systems for weapons, communications, navigation and operation. The reliability and survivability of a Shipboard Power System (SPS) are critical ...

  1. AC system stability analysis and assessment for Shipboard Power Systems

    E-Print Network [OSTI]

    Qi, Li

    2006-04-12T23:59:59.000Z

    The electric power systems in U.S. Navy ships supply energy to sophisticated systems for weapons, communications, navigation and operation. The reliability and survivability of a Shipboard Power System (SPS) are critical to the mission of a Navy...

  2. Solar Energy Systems - Research - Systems Analysis - Smart Grid...

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

    Solar Energy Systems U.S. Department of Energy Search Argonne ... Search Argonne Home > SES Home Research Home Photovoltaics Transparent Conductors Concentrating Sunlight Systems...

  3. Performance Validation and Energy Analysis of HVAC Systems using Simulation

    E-Print Network [OSTI]

    Diamond, Richard

    monitored system outputs for performance validation and energy analysis. The paper presents results from1 Performance Validation and Energy Analysis of HVAC Systems using Simulation Tim Salsbury and Rick Francisco. 1 Introduction Significant potential exists with the current technology of energy management

  4. Towards Interactive Timing Analysis for Designing Reactive Systems

    E-Print Network [OSTI]

    Towards Interactive Timing Analysis for Designing Reactive Systems Insa Fuhrmann David Broman Steven Smyth Reinhard von Hanxleden Electrical Engineering and Computer Sciences University of California Interactive Timing Analysis for Designing Reactive Systems Insa Fuhrmann1 , David Broman2,3 , Steven Smyth1

  5. 15-11-061ETSAP Energy Technology Systems Analysis

    E-Print Network [OSTI]

    15-11-061ETSAP Energy Technology Systems Analysis Programme (ETSAP) ­ Annex X ETSAP Semi · Global Energy Supply: Model-based Scenario Analysis of Resource Use and Energy Trade. Uwe Remme, Maryse Policy Scenario to address energy security and environmental concerns. Based on the detailed analysis

  6. Safety System Oversight Staffing Analysis (Instructions, Blank...

    Office of Environmental Management (EM)

    modifications since changes to the worksheet format may inadvertently change included formula referenced cells. SSO Alternate Staffing Analysis - Instructions SSO Alternate...

  7. FAQS Gap Analysis Qualification Card – Mechanical Systems

    Broader source: Energy.gov [DOE]

    Functional Area Qualification Standard Gap Analysis Qualification Cards outline the differences between the last and latest version of the FAQ Standard.

  8. Safety Analysis Of Automated Highway Systems

    E-Print Network [OSTI]

    Leveson, Nancy G.

    1997-01-01T23:59:59.000Z

    Lee. Towards an automated fmea assis- tant. In Applicationsmodes and effects analysis (FMEA) is employed to determineof multiple failures. ) FMEA was developed Potential Part

  9. Possibilities and limitations of life cycle assessment (LCA) in the development of waste utilization systems - Applied examples for a region in Northern Germany

    SciTech Connect (OSTI)

    Wittmaier, M. [Institute for Recycling and Environmental Protection at Bremen University of Applied Sciences GmbH, Neustadtswall 30, 28199 Bremen (Germany)], E-mail: wittmaier@hs-bremen.de; Langer, S.; Sawilla, B. [Institute for Recycling and Environmental Protection at Bremen University of Applied Sciences GmbH, Neustadtswall 30, 28199 Bremen (Germany)

    2009-05-15T23:59:59.000Z

    Against the background of increasing concerns about climate change, the reduction of greenhouse gas emissions has become an integral part of processes in both the waste management and the energy industries. This is reflected in the development of new waste treatment concepts, in which domestic and commercial waste is treated with the aim of utilizing its energy content, while at the same time recycling as much of its material content as possible. Life cycle assessment (LCA) represents a method of assessing the environmental relevance of a waste management system, the basis of which is a material flow analysis of the system in question. GHG emissions from different options for thermal treatment and energy recovery from waste as applied to a region in Northern Germany have been analyzed by the LCA approach and an indicative LCA, which only considers those emissions resulting from operating stages of the system. Operating stages have the main share of emissions compared to pre-processing stages. Results show that through specific separation of waste material flows and highly efficient energy recovery, thermal treatment and energy generation from waste can be optimized resulting in reduction of emissions of greenhouse gases. There are also other areas of waste utilization, currently given little attention, such as the solar drying of sewage sludge, which can considerably contribute to the reduction of greenhouse gas emissions.

  10. Copyright by SIAM. Unauthorized reproduction of this article is prohibited. SIAM J. APPLIED DYNAMICAL SYSTEMS c 2008 Society for Industrial and Applied Mathematics

    E-Print Network [OSTI]

    Moehlis, Jeff

    oscillator steering control. Prior work on such models has focused primarily on sinusoidal coupling functions Vehicular Trajectories for Collective Motion from Coupled Oscillator Steering Control Margot Kimura and Jeff are considered. Such trajectories are associated with periodic orbits in the steering control sub- system

  11. An analysis of distributed solar fuel systems

    E-Print Network [OSTI]

    Thomas, Alex, S.M. Massachusetts Institute of Technology

    2012-01-01T23:59:59.000Z

    While solar fuel systems offer tremendous potential to address global clean energy needs, most existing analyses have focused on the feasibility of large centralized systems and applications. Not much research exists on ...

  12. Parallel processing techniques applied to transient stability analysis of power systems 

    E-Print Network [OSTI]

    Balachandra, Chandrakumar John

    1982-01-01T23:59:59.000Z

    contour cutting strategy will therefore yield a smaller and mor effic'ent t'ableau as illustrated in ='gure Z. b and figure 3. o . The final result is the correc. identification of the three clust rs ofthe graph. T'h e dyna- mic contour cutting...

  13. Development of a natural gas systems analysis model (GSAM)

    SciTech Connect (OSTI)

    NONE

    1999-10-01T23:59:59.000Z

    This report provides an overview of the activities to date and schedule for future testing, validation, and authorized enhancements of Natural Gas Systems Analysis Model (GSAM). The goal of this report is to inform DOE managers of progress in model development and to provide a benchmark for ongoing and future research. Section II of the report provides a detailed discussion on the major GSAM development programs performed and completed during the period of performance, July 1, 1998 to September 30, 1999. Key improvements in the new GSAM version are summarized in Section III. Programmer's guides for GSAM main modules were produced to provide detailed descriptions of all major subroutines and main variables of the computer code. General logical flowcharts of the subroutines are also presented in the guides to provide overall picture of interactions between the subroutines. A standard structure of routine explanation is applied in every programmer's guide. The explanation is started with a brief description or main purpose of the routine, lists of input and output files read and created, and lists of invoked/child and calling/parent routines. In some of the guides, interactions between the routine itself and its parent and child routines are presented in the form of graphical flowchart. The explanation is then proceeded with step by step description of computer code in the subroutine where each step delegates a section of related code. Between steps, if a certain section of code needs further explanation, a Note is inserted with relevant explanation.

  14. SteamMaster: Steam System Analysis Software 

    E-Print Network [OSTI]

    Wheeler, G.

    2003-01-01T23:59:59.000Z

    recommendations to increase steam system effic iency. Steam System Opportunities ]n nearly 400 industrial assessments, we have recommended 210 steam system improvements, excluding heat recovery, that would save $1.5 million/year with a O.4-year payback. 75...

  15. Review of Wavelet Theory and Harmonic Analysis in Applied Sciences, C.E. D'Atellis and E.M. Fernandez-Berdaguer, Ed.

    E-Print Network [OSTI]

    Kon, Mark

    Review of Wavelet Theory and Harmonic Analysis in Applied Sciences, C.E. D'Atellis and E.M. Fernandez-Berdaguer, Ed. Mark A. Kon, Boston University Wavelet theory has had a far-reaching influence, not only on the theory of wavelets, but on their applications in almost every area of science which has

  16. Geological interpretation of Mount Ciremai geothermal system from remote sensing and magneto-teluric analysis

    E-Print Network [OSTI]

    Sumintadireja, Prihadi; Irawan, Dasapta E; Irawan, Diky; Fadillah, Ahmad

    2015-01-01T23:59:59.000Z

    The exploration of geothermal system at Mount Ciremai has been started since the early 1980s and has just been studied carefully since the early 2000s. Previous studies have detected the potential of geothermal system and also the groundwater mechanism feeding the system. This paper will discuss the geothermal exploration based on regional scale surface temperature analysis with Landsat image to have a more detail interpretation of the geological setting and magneto-telluric or MT survey at prospect zones, which identified by the previous method, to have a more exact and in depth local scale structural interpretation. Both methods are directed to pin point appropriate locations for geothermal pilot hole drilling and testing. We used four scenes of Landsat Enhanced Thematic Mapper or ETM+ data to estimate the surface manifestation of a geothermal system. Temporal analysis of Land Surface Temperature or LST was applied and coupled with field temperature measurement at seven locations. By combining the TTM with ...

  17. Topics for Matrix Analysis (Math 430) Portion of Qualifying Exams Possible Text: Matrix Analysis and Applied Linear Algebra by Carl D. Meyer, SIAM, 2000.

    E-Print Network [OSTI]

    Maryland, Baltimore County, University of

    and Applied Linear Algebra by Carl D. Meyer, SIAM, 2000. Emphasis is on general theory of matrices rather than

  18. Failure analysis issues in microelectromechanical systems (MEMS).

    SciTech Connect (OSTI)

    Walraven, Jeremy Allen

    2005-07-01T23:59:59.000Z

    Failure analysis and device characterization of MEMS components are critical steps in understanding the root causes of failure and improving device performance. At the wafer and die level these tasks can be performed with little or no sample preparation. Larger challenges occur after fabrication when the device is packaged, capped, sealed, or otherwise obstructed from view. The challenges and issues of MEMS failure analysis lie in identifying the root cause of failure for these packaged, capped, and sealed devices without perturbing the device or its immediate environment. Novel methods of gaining access to the device or preparing the device for analysis are crucial to accurately determining the root cause of failure. This paper will discuss issues identified in performing root cause failure analysis of packaged MEMS devices, as well as the methods employed to analyze them.

  19. Microcomputer Analysis of Pumping System Performance

    E-Print Network [OSTI]

    Bierschenk, J. L.; Schmidt, P. S.

    With today’s emphasis on efficient use and conservation of energy, selecting the correct pump for a given application requires not only a concise performance evaluation but also detailed economic analysis. A microcomputer program entitled PUMPCALC...

  20. A systems approach to food accident analysis

    E-Print Network [OSTI]

    Helferich, John D

    2011-01-01T23:59:59.000Z

    Food borne illnesses lead to 3000 deaths per year in the United States. Some industries, such as aviation, have made great strides increasing safety through careful accident analysis leading to changes in industry practices. ...

  1. Process of system design and analysis

    SciTech Connect (OSTI)

    Gardner, B.

    1995-09-01T23:59:59.000Z

    The design of an effective physical protection system includes the determination of the physical protection system objectives, the initial design of a physical protection system, the evaluation of the design, and, probably, a redesign or refinement of the system. To develop the objectives, the designer must begin by gathering information about facility operations and conditions, such as a comprehensive description of the facility, operating states, and the physical protection requirements. The designer then needs to define the threat. This involves considering factors about potential adversaries: Class of adversary, adversary`s capabilities, and range of adversary`s tactics. Next, the designer should identify targets. Determination of whether or not nuclear materials are attractive targets is based mainly on the ease or difficulty of acquisition and desirability of the materiaL The designer now knows the objectives of the physical protection system, that is, ``What to protect against whom.`` The next step is to design the system by determining how best to combine such elements as fences, vaults, sensors, procedures, communication devices, and protective force personnel to meet the objectives of the system. Once a physical protection system is designed, it must be analyzed and evaluated to ensure it meets the physical protection objectives. Evaluation must allow for features working together to assure protection rather than regarding each feature separately. Due to the complexity of protection systems, an evaluation usually requires modeling techniques. If any vulnerabilities are found, the initial system must be redesigned to correct the vulnerabilities and a reevaluation conducted.

  2. Fuel Cell System Improvement for Model-Based Diagnosis Analysis

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Fuel Cell System Improvement for Model-Based Diagnosis Analysis Philippe Fiani & Michel Batteux of a model of a fuel cell system, in order to make it usable for model- based diagnosis methods. A fuel cell for the fuel cell stack but also for the system environment. In this paper, we present an adapted library which

  3. Cost Analysis of Fuel Cell Systems for Transportation

    E-Print Network [OSTI]

    Cost Analysis of Fuel Cell Systems for Transportation Compressed Hydrogen and PEM Fuel Cell System Discussion Fuel Cell Tech Team FreedomCar Detroit. MI October 20, 2004 TIAX LLC Acorn Park Cambridge Estimates Task 3: Identify Opportunities for System Cost Reduction Tasks 4, 5, 6 & 7: Annual Updates Develop

  4. Modal Analysis of Continuous Structrual System with Tapered Cantilevered Members

    E-Print Network [OSTI]

    Kim, Yoon Mo

    2012-02-14T23:59:59.000Z

    OF CONVENTIONAL CONTINUOUS SYSTEM ............ 9 2.1. Transverse Vibration in Conventional Continuous System Model .................... 9 2.2. Equation of Motion for Flexural Member .......................................................... 9 2.3 Boundary.......................................... 19 2.6 Conclusion ........................................................................................................ 20 3. MODAL ANALYSIS OF DISCRETIZED CONTINUOUS SYSTEM ............... 21 3.1. Transverse Vibration in Discretized Continuous...

  5. Nonlinear analysis of a reaction-diffusion system: Amplitude equations

    SciTech Connect (OSTI)

    Zemskov, E. P., E-mail: zemskov@ccas.ru [Russian Academy of Sciences, Dorodnicyn Computing Center (Russian Federation)

    2012-10-15T23:59:59.000Z

    A reaction-diffusion system with a nonlinear diffusion term is considered. Based on nonlinear analysis, the amplitude equations are obtained in the cases of the Hopf and Turing instabilities in the system. Turing pattern-forming regions in the parameter space are determined for supercritical and subcritical instabilities in a two-component reaction-diffusion system.

  6. Hamiltonian control systems From modeling to analysis and control

    E-Print Network [OSTI]

    Knobloch,Jürgen

    Hamiltonian control systems From modeling to analysis and control Arjan van der Schaft Johann-based modeling 3 Definition of port-Hamiltonian systems 4 Scattering: from power variables to wave variables 5, University of Groningen, the Netherlands DiHamiltonian control systems Elgersburg School, March, 2012 1 / 108

  7. Full-System Power Analysis and Modeling for Server Environments

    E-Print Network [OSTI]

    Kozyrakis, Christos

    Full-System Power Analysis and Modeling for Server Environments Dimitris Economou, Suzanne Rivoire-density computer systems, have created a growing demand for better power management in server environments. Despite consumption trends and developing simple yet accurate models to predict full-system power. We study

  8. EMSL - Cell Isolation and Systems Analysis

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

    using fluorescence resonance energy transfer (FRET) in live cells. * Two SOLiD systems together with the Ion Proton(tm) provide unbiased global transcriptome analyses with...

  9. Route profile analysis system and method

    DOE Patents [OSTI]

    Mullenhoff, D.J.; Wilson, S.W.

    1982-07-29T23:59:59.000Z

    A system for recording terrain profile information is disclosed. The system accurately senses incremental distances traveled by a vehicle along with vehicle inclination, recording both with elapsed time. The incremental distances can subsequently be differentiated with respect to time to obtain acceleration. The computer acceleration can then be used to correct the sensed inclination.

  10. Extending and automating a Systems-Theoretic hazard analysis for requirements generation and analysis.

    SciTech Connect (OSTI)

    Thomas, John (Massachusetts Institute of Technology)

    2012-05-01T23:59:59.000Z

    Systems Theoretic Process Analysis (STPA) is a powerful new hazard analysis method designed to go beyond traditional safety techniques - such as Fault Tree Analysis (FTA) - that overlook important causes of accidents like flawed requirements, dysfunctional component interactions, and software errors. While proving to be very effective on real systems, no formal structure has been defined for STPA and its application has been ad-hoc with no rigorous procedures or model-based design tools. This report defines a formal mathematical structure underlying STPA and describes a procedure for systematically performing an STPA analysis based on that structure. A method for using the results of the hazard analysis to generate formal safety-critical, model-based system and software requirements is also presented. Techniques to automate both the analysis and the requirements generation are introduced, as well as a method to detect conflicts between the safety and other functional model-based requirements during early development of the system.

  11. Analysis of the cattle histocompatibility system

    E-Print Network [OSTI]

    Bryan, Christopher Fulton

    1975-01-01T23:59:59.000Z

    , vill not allow the hntigen-antibody complex to be detected since it interferes with the lytic process. Thus deactivation of natural complement vss accomplished by heating the serum at 56 C for 30 minutes. 0 After 90 minutes incubation each ALS... of the electrode wicks and samples, 210 volts and 50 milliamps vere applied for 30 minutes at which time the sample inserts were removed. Electrofocusing was continued for 90 minutes. The voltage vas gradually increased to 1050 V as the current decreased...

  12. POWER GRID DYNAMICS: ENHANCING POWER SYSTEM OPERATION THROUGH PRONY ANALYSIS

    SciTech Connect (OSTI)

    Ray, C.; Huang, Z.

    2007-01-01T23:59:59.000Z

    Prony Analysis is a technique used to decompose a signal into a series consisting of weighted complex exponentials and promises to be an effi cient way of recognizing sensitive lines during faults in power systems such as the U.S. Power grid. Positive Sequence Load Flow (PSLF) was used to simulate the performance of a simple two-area-four-generator system and the reaction of the system during a line fault. The Dynamic System Identifi cation (DSI) Toolbox was used to perform Prony analysis and use modal information to identify key transmission lines for power fl ow adjustment to improve system damping. The success of the application of Prony analysis methods to the data obtained from PSLF is reported, and the key transmission line for adjustment is identifi ed. Future work will focus on larger systems and improving the current algorithms to deal with networks such as large portions of the Western Electricity Coordinating Council (WECC) power grid.

  13. Hierarchical Task Analysis of Intrusion Detection Systems

    E-Print Network [OSTI]

    Blustein, J.

    .......................... 4 3. Hierarchical Task Analysis ............................ 6 3.1 Network Security Administrator .................... 7 3.2 Functions of Network Security Administrator ....... 7 4. Diagrams on a single or group of persons called Network Security Administrators. They use a wide variety of tools

  14. Safety System Oversight Staffing Analysis- Example

    Broader source: Energy.gov [DOE]

    This Staffing Analysis calculation is completed using an Excel worksheet. Information locations are identified by titles in column or row headings and worksheet locations based on the unmodified blank. Use caution when making worksheet modifications since changes to the worksheet format may inadvertently change included formula referenced cells.

  15. Big Data Visual Analytics for Exploratory Earth System Simulation Analysis

    SciTech Connect (OSTI)

    Steed, Chad A [ORNL; Ricciuto, Daniel M [ORNL; Shipman, Galen M [ORNL; Smith, Brian E [ORNL; Thornton, Peter E [ORNL; Wang, Dali [ORNL; Shi, Xiaoying [ORNL; Williams, Dean N. [Lawrence Livermore National Laboratory (LLNL)

    2013-01-01T23:59:59.000Z

    Rapid increases in high performance computing are feeding the development of larger and more complex data sets in climate research, which sets the stage for so-called big data analysis challenges. However, conventional climate analysis techniques are inadequate in dealing with the complexities of today s data. In this paper, we describe and demonstrate a visual analytics system, called the Exploratory Data analysis ENvironment (EDEN), with specific application to the analysis of complex earth system simulation data sets. EDEN represents the type of interactive visual analysis tools that are necessary to transform data into insight, thereby improving critical comprehension of earth system processes. In addition to providing an overview of EDEN, we describe real-world studies using both point ensembles and global Community Land Model Version 4 (CLM4) simulations.

  16. Enhancing the systems decision process with flexibility analysis for optimal unmanned aircraft system selection

    E-Print Network [OSTI]

    Bachmann, Chris H., III (Christopher Henry)

    2008-01-01T23:59:59.000Z

    Systems Engineers often conduct decision analysis in order to provide decision makers with a quantifiable means to make decisions. However, the field of Systems Engineering is often criticized for focusing on processes and ...

  17. Analysis of Bitcoin Pooled Mining Reward Systems

    E-Print Network [OSTI]

    Rosenfeld, Meni

    2011-01-01T23:59:59.000Z

    In this paper we describe the various scoring systems used to calculate rewards of participants in Bitcoin pooled mining, explain the problems each were designed to solve and analyze their respective advantages and disadvantages.

  18. Commonality analysis for exploration life support systems

    E-Print Network [OSTI]

    Cunio, Phillip M

    2008-01-01T23:59:59.000Z

    Commonality, defined practically as the use of similar technologies to deliver similar functions across a range of different complex systems, offers opportunities to improve the lifecycle costs of portfolios of complex ...

  19. Design and analysis of reconfigurable analog system

    E-Print Network [OSTI]

    Lajevardi, Payam

    2011-01-01T23:59:59.000Z

    A highly-configurable analog system is presented. A prototype chip is fabricated and an ADC and filter functionalities are demonstrated. The chip consists of eight identical programmable stages. In an ADC configuration, ...

  20. Uncertainty analysis of power systems using collocation

    E-Print Network [OSTI]

    Taylor, Joshua Adam

    2008-01-01T23:59:59.000Z

    The next-generation all-electric ship represents a class of design and control problems in which the system is too large to approach analytically, and even with many conventional computational techniques. Additionally, ...

  1. Analysis of Hybrid Hydrogen Systems: Final Report

    SciTech Connect (OSTI)

    Dean, J.; Braun, R.; Munoz, D.; Penev, M.; Kinchin, C.

    2010-01-01T23:59:59.000Z

    Report on biomass pathways for hydrogen production and how they can be hybridized to support renewable electricity generation. Two hybrid systems were studied in detail for process feasibility and economic performance. The best-performing system was estimated to produce hydrogen at costs ($1.67/kg) within Department of Energy targets ($2.10/kg) for central biomass-derived hydrogen production while also providing value-added energy services to the electric grid.

  2. Multiscale Analysis and Optimisation of Photosynthetic Solar Energy Systems

    E-Print Network [OSTI]

    Andrew K. Ringsmuth

    2014-02-24T23:59:59.000Z

    This work asks how light harvesting in photosynthetic systems can be optimised for economically scalable, sustainable energy production. Hierarchy theory is introduced as a system-analysis and optimisation tool better able to handle multiscale, multiprocess complexities in photosynthetic energetics compared with standard linear-process analysis. Within this framework, new insights are given into relationships between composition, structure and energetics at the scale of the thylakoid membrane, and also into how components at different scales cooperate under functional objectives of the whole photosynthetic system. Combining these reductionistic and holistic analyses creates a platform for modelling multiscale-optimal, idealised photosynthetic systems in silico.

  3. Analysis of Lyapunov Control for Hamiltonian Quantum Systems

    E-Print Network [OSTI]

    Xiaoting Wang; Sonia Schirmer

    2008-05-19T23:59:59.000Z

    We present detailed analysis of the convergence properties and effectiveness of Lyapunov control design for bilinear Hamiltonian quantum systems based on the application of LaSalle's invariance principle and stability analysis from dynamical systems and control theory. For a certain class of Hamiltonians, strong convergence results can be obtained for both pure and mixed state systems. The control Hamiltonians for realistic physical systems, however, generally do not fall in this class. It is shown that the effectiveness of Lyapunov control design in this case is significantly diminished.

  4. Multiscale Analysis and Optimisation of Photosynthetic Solar Energy Systems

    E-Print Network [OSTI]

    Ringsmuth, Andrew K

    2014-01-01T23:59:59.000Z

    This work asks how light harvesting in photosynthetic systems can be optimised for economically scalable, sustainable energy production. Hierarchy theory is introduced as a system-analysis and optimisation tool better able to handle multiscale, multiprocess complexities in photosynthetic energetics compared with standard linear-process analysis. Within this framework, new insights are given into relationships between composition, structure and energetics at the scale of the thylakoid membrane, and also into how components at different scales cooperate under functional objectives of the whole photosynthetic system. Combining these reductionistic and holistic analyses creates a platform for modelling multiscale-optimal, idealised photosynthetic systems in silico.

  5. Use of Statistical Entropy and Life Cycle Analysis to Evaluate Global Warming Potential of Waste Management Systems

    E-Print Network [OSTI]

    Columbia University

    The statistical entropy (SE) function has been applied to waste treatment systems to account for dilution solid waste (MSW). A greenhouse gas- forcing factor is also introduced to account for the entropyUse of Statistical Entropy and Life Cycle Analysis to Evaluate Global Warming Potential of Waste

  6. Fuel Cells Vehicle Systems Analysis (Fuel Cell Freeze Investigation)

    SciTech Connect (OSTI)

    Pesaran, A.; Kim, G.; Markel, T.; Wipke, K.

    2005-05-01T23:59:59.000Z

    Presentation on Fuel Cells Vehicle Systems Analysis (Fuel Cell Freeze Investigation) for the 2005 Hydrogen, Fuel Cells & Infrastructure Technologies Program Annual Review held in Arlington, Virginia on May 23-26, 2005.

  7. analysis system design: Topics by E-print Network

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

    the IEA R&D Wind's Topical expert meeting on Material recycling and life cycle analysis (LCA) of wind turbines 336 Social Norm Design for Information Exchange Systems with Limited...

  8. analysis code system: Topics by E-print Network

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

    We define the user Erkip, Elza 2 A Network Approach to the French System of Legal codes Part I: Analysis Physics Websites Summary: vertices) of codes covering large domains...

  9. Regular Symbolic Analysis of Dynamic Networks of Pushdown Systems

    E-Print Network [OSTI]

    Müller-Olm, Markus

    Regular Symbolic Analysis of Dynamic Networks of Pushdown Systems Ahmed Bouajjani1, Markus M¨uller-Olm Bouajjani, Markus M¨uller-Olm, and Tayssir Touili parallel calls. In a multithreaded program such a command

  10. Regular Symbolic Analysis of Dynamic Networks of Pushdown Systems

    E-Print Network [OSTI]

    Müller-Olm, Markus

    Regular Symbolic Analysis of Dynamic Networks of Pushdown Systems Ahmed Bouajjani 1 , Markus MË?uller­Olm #12; 474 Ahmed Bouajjani, Markus MË?uller­Olm, and Tayssir Touili parallel calls. In a multithreaded

  11. Regular Symbolic Analysis of Dynamic Networks of Pushdown Systems

    E-Print Network [OSTI]

    Touili, Tayssir

    Regular Symbolic Analysis of Dynamic Networks of Pushdown Systems Ahmed Bouajjani 1 , Markus MË?uller­Olm Bouajjani, Markus MË?uller­Olm, and Tayssir Touili parallel calls. In a multithreaded program such a command

  12. Regular Symbolic Analysis of Dynamic Networks of Pushdown Systems

    E-Print Network [OSTI]

    Müller-Olm, Markus

    Regular Symbolic Analysis of Dynamic Networks of Pushdown Systems Ahmed Bouajjani1, Markus M¨uller-Olm #12;474 Ahmed Bouajjani, Markus M¨uller-Olm, and Tayssir Touili parallel calls. In a multithreaded

  13. Availability Analysis of Repairable Computer Systems and Stationarity Detection

    E-Print Network [OSTI]

    Sericola, Bruno

    Availability Analysis of Repairable Computer Systems and Stationarity Detection Bruno Sericola AbstractÐPoint availability and expected interval availability are dependability measures respectively in this paper a new algorithm to compute these two availability measures. This algorithm is based

  14. Analysis of transmission system faults in the phase domain

    E-Print Network [OSTI]

    Zhu, Jun

    2004-11-15T23:59:59.000Z

    In order to maintain a continuous power suppply, nowadays relays in transmission systems are required to be able to deal with complicated faults involving non-conventional connections, which poses a challenge to the short circuit analysis...

  15. air system analysis: Topics by E-print Network

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

    combined in extensive numerical ... Swan, William M. 1979-01-01 5 Compressed Air System Analysis and Retrofit for Energy Savings Texas A&M University - TxSpace Summary: This case...

  16. Thermodynamic Analysis of Combined Cycle District Heating System

    E-Print Network [OSTI]

    Suresh, S.; Gopalakrishnan, H.; Kosanovic, D.

    2011-01-01T23:59:59.000Z

    This paper presents a thermodynamic analysis of the University of Massachusetts' Combined Heat and Power (CHP) District Heating System. Energy and exergy analyses are performed based on the first and second laws of thermodynamics for power...

  17. Modeling and Analysis of CSP Systems (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2010-08-01T23:59:59.000Z

    Fact sheet describing NREL CSP Program capabilities in the area of modeling and analysis of CSP systems: assessing the solar resource, predicting performance and cost, studying environmental impact, and developing modeling software packages.

  18. Complete VAX/VMS DNA/protein sequence analysis system

    SciTech Connect (OSTI)

    Smith, D.W.

    1987-05-01T23:59:59.000Z

    A complete yet flexible system of programs and database libraries for analysis of DNA, RNA and protein sequences is implemented for VAX/VMS computers. Types of analysis include 1) construction and analysis of chimeric sequences (cloning in the VAX), 2) multiple analysis of one or more single sequences, 3) search and comparison studies using sequence libraries, and 4) direct input and analysis of experimental data. Published groups of programs, including the Staden, Los Alamos, Zuker, Pearson, and PHYLIP programs, are used. GenBank and EMBL DNA libraries and PIR and Doolittle NEWAT protein libraries are available, with associated programs. The system is tutorial, with online documentation for relevent VAX software, the programs, and the databases. The complete documentation is flexibly maintained on reserve via computer printout placed in 3-ring binders. Command files are used extensively; porting of the entire system to another VAX/VMS system requires modification of a single command. Users of the system are members of a VAX group, with automatic implementation of the system upon login. The present system occupies about 140,000 blocks, and is easily expanded, or contracted, as desired. The UCSD system is used extensively for both teaching and research purposes. Use of microcomputers emulating Tektronix 4014 graphics terminals permits saving of graphics output to disk for subsequent modification to generate high quality publishable figures.

  19. Analysis of Lyapunov Method for Control of Quantum Systems

    E-Print Network [OSTI]

    Xiaoting Wang; Sonia G. Schirmer

    2008-05-19T23:59:59.000Z

    We present a detailed analysis of the convergence properties of Lyapunov control for finite-dimensional quantum systems based on the application of the LaSalle invariance principle and stability analysis from dynamical systems and control theory. For a certain class of ideal Hamiltonians, convergence results are derived both pure-state and mixed-state control, and the effectiveness of the method for more realistic Hamiltonians is discussed.

  20. A simplified system of pressure surfaces for atmospheric analysis 

    E-Print Network [OSTI]

    Shay, Francis Schofield

    1959-01-01T23:59:59.000Z

    LIBRARY A g M COLLEGE OF TEXAS A SIMPLIFIED SYSTEM OF PRESSURE SURFACES FOR ATMOSPHERIC ANALYSIS A Thesis By FRANCIS S. SHAY + Captain USAF Submitted to the Graduate School of the Agricultural and Mechanical College of Texas in partial... fulfillment of the requirements for the degree of MASTER OP SCIENCE May 1959 Major Subject: Meteorology A SIMPLIFIED SYSTEM OF PRESSURE SURFACES FOR ATMOSPHERIC ANALYSIS A Thesis By FRANCIS S. SHAY Captain USAF jpp roved j as to style and content...

  1. Unit hydrograph application to stormwater collection system design and analysis

    E-Print Network [OSTI]

    Spinks, Melvin Gerald

    1987-01-01T23:59:59.000Z

    review of each model studied and its capabilities follows. Storm Water Management Model. ? The Storm Water Management Model (SWMM) was developed by the United States Environmental Protection Agency for the analysis of urban stormwater runoff... backwater analysis option uses the Direct Step Method to compute the water surface profiles in the storm sewer system. Two case studies with complex stormwater collection systems were modeled to verify and validate the hydrologic and hydraulic methods...

  2. Combined elevated pressure reactor and ultrahigh vacuum surface analysis system

    E-Print Network [OSTI]

    Goodman, Wayne

    Combined elevated pressure reactor and ultrahigh vacuum surface analysis system J&IOS Szanyi and D 19 February 1993; accepted for publication 20 April 1993) A combined elevated pressure reactor. The reaction cell is separated from the surface analysis chamber by a differentially pumped sliding seal

  3. Exploiting Behavior Models for Availability Analysis of Interactive Systems

    E-Print Network [OSTI]

    Cengarle, María Victoria

    Exploiting Behavior Models for Availability Analysis of Interactive Systems Maximilian Junker Technische Universit¨at M¨unchen Abstract--We propose an approach for availability analysis that directly are reduced effort as no dedicated availability models need to be created as well as precise results due

  4. Systems reliability analysis for the national ignition facility

    SciTech Connect (OSTI)

    Majumdar, K.C.; Annese, C.E.; MacIntyre, A.T.; Sicherman, A.

    1996-06-12T23:59:59.000Z

    A Reliability, Availability and Maintainability (RAM) analysis was initiated for the National Ignition Facility (NIF). The NIF is an inertial confinement fusion research facility designed to achieve controlled thermonuclear reaction; the preferred site for the NIF is the Lawrence Livermore National Laboratory (LLNL). The NIF RAM analysis has three purposes: (1) to allocate top level reliability and availability goals for the systems, (2) to develop an operability model for optimum maintainability, and (3) to determine the achievability of the allocated goals of the RAM parameters for the NIF systems and the facility operation as a whole. An allocation model assigns the reliability and availability goals for front line and support systems by a top-down approach; reliability analysis uses a bottom-up approach to determine the system reliability and availability from component level to system level.

  5. Modeling and analysis of energy conversion systems

    SciTech Connect (OSTI)

    Den Braven, K.R. (Idaho Univ., Moscow, ID (USA). Dept. of Mechanical Engineering); Stanger, S. (EG and G Idaho, Inc., Idaho Falls, ID (USA))

    1990-10-01T23:59:59.000Z

    An investigation was conducted to assess the need for and the feasibility of developing a computer code that could model thermodynamic systems and predict the performance of energy conversion systems. To assess the market need for this code, representatives of a few industrial organizations were contacted, including manufacturers, system and component designers, and research personnel. Researchers and small manufacturers, designers, and installers were very interested in the possibility of using the proposed code. However, large companies were satisfied with the existing codes that they have developed for their own use. Also, a survey was conduced of available codes that could be used or possibly modified for the desired purpose. The codes were evaluated with respect to a list of desirable features, which was prepared as a result of the survey. A few publicly available codes were found that might be suitable. The development, verification, and maintenance of such a code would require a substantial, ongoing effort. 21 refs.

  6. A Taxonomy and Evaluation for Systems Analysis Methodologies in a Workflow Context: Structured Systems

    E-Print Network [OSTI]

    Newcastle upon Tyne, University of

    Systems Analysis Design Method (SSADM), Unified Modelling Language (UML), Unified Process, Soft Systems taxonomy dealing with both hard- and soft-system aspects. The results show that there is no methodology that covers all of the taxonomic aspects identified. Organisational Process Modelling (OPM) and Soft Systems

  7. Reachability Analysis of a Biodiesel Production System Using Stochastic Hybrid Systems

    E-Print Network [OSTI]

    Koutsoukos, Xenofon D.

    Reachability Analysis of a Biodiesel Production System Using Stochastic Hybrid Systems Derek Riley defines the creation of biodiesel from soybean oil and methanol. Modeling and analyzing the biodiesel. In this paper we model a biodiesel production system as a stochastic hybrid system, and we present

  8. Dynamical Systems and Applications of Nonlinear Functional Analysis to Dynamical Systems

    E-Print Network [OSTI]

    Zhang, Meirong

    Dynamical Systems and Applications of Nonlinear Functional Analysis to Dynamical Systems Meirong consists of three parts. In Part 1 we introduce some basic concepts in dynamical systems, including limit sets, nonwandering sets, topological conjugacy, clas- sification of discrete dynamical systems under

  9. Multi Megawatt Power System Analysis Report

    SciTech Connect (OSTI)

    Longhurst, Glen Reed; Harvego, Edwin Allan; Schnitzler, Bruce Gordon; Seifert, Gary Dean; Sharpe, John Phillip; Verrill, Donald Alan; Watts, Kenneth Donald; Parks, Benjamin Travis

    2001-11-01T23:59:59.000Z

    Missions to the outer planets or to near-by planets requiring short times and/or increased payload carrying capability will benefit from nuclear power. A concept study was undertaken to evaluate options for a multi-megawatt power source for nuclear electric propulsion. The nominal electric power requirement was set at 15 MWe with an assumed mission profile of 120 days at full power, 60 days in hot standby, and another 120 days of full power, repeated several times for 7 years of service. Of the numerous options considered, two that appeared to have the greatest promise were a gas-cooled reactor based on the NERVA Derivative design, operating a closed cycle Brayton power conversion system; and a molten lithium-cooled reactor based on SP-100 technology, driving a boiling potassium Rankine power conversion system. This study examined the relative merits of these two systems, seeking to optimize the specific mass. Conclusions were that either concept appeared capable of approaching the specific mass goal of 3-5 kg/kWe estimated to be needed for this class of mission, though neither could be realized without substantial development in reactor fuels technology, thermal radiator mass efficiency, and power conversion and distribution electronics and systems capable of operating at high temperatures. Though the gas-Brayton systems showed an apparent advantage in specific mass, differences in the degree of conservatism inherent in the models used suggests expectations for the two approaches may be similar. Brayton systems eliminate the need to deal with two-phase flows in the microgravity environment of space.

  10. Analysis of a laser projection system

    E-Print Network [OSTI]

    Vangala, Prabhakar Srinivas

    1990-01-01T23:59:59.000Z

    in the various transforination parameters on the final beam location and data, indicating the results. Gatvanometers YO t aser Laser Or Global Coordinate System XO rilrr ors ZO Reflected Laser Beam SD PSD Internal Ply X Tool Or Fixture Y Coordinate... (D) ddt. 1 ? dtt, dy detr dd 1 d 0 0 0 1 Z2 Y2 Fixture Position 2 X2 ; ixture Position 1 X1 [T2 l YO Zi i aser Coordinate System ZO Figure T. Differential Transformation The Translational and Rotational errors can then be calculated...

  11. Digital Pulse-Shape Discrimination Applied to an Ultra-Low-Background Gas-Proportional Counting System: First Results

    SciTech Connect (OSTI)

    Aalseth, Craig E.; Day, Anthony R.; Fuller, Erin S.; Hoppe, Eric W.; Keillor, Martin E.; Mace, Emily K.; Myers, A. W.; Overman, Cory T.; Panisko, Mark E.; Seifert, Allen; Warren, Glen A.; Williams, Richard M.

    2013-05-01T23:59:59.000Z

    Abstract A new ultra-low-background proportional counter (ULBPC) design was recently developed at Pacific Northwest National Laboratory (PNNL). This design, along with an ultra-low-background counting system (ULBCS) which provides passive and active shielding with radon exclusion, has been developed to complement a new shallow underground laboratory (~30 meters water-equivalent) constructed at PNNL. After these steps to mitigate dominant backgrounds (cosmic rays, external gamma-rays, radioactivity in materials), remaining background events do not exclusively arise from ionization of the proportional counter gas. Digital pulse-shape discrimination (PSD) is thus employed to further improve measurement sensitivity. In this work, a template shape is generated for each individual sample measurement of interest, a "self-calibrating" template. Differences in event topology can also cause differences in pulse shape. In this work, the temporal region analyzed for each event is refined to maximize background discrimination while avoiding unwanted sensitivity to event topology. This digital PSD method is applied to sample and background data, and initial measurement results from a biofuel methane sample are presented in the context of low-background measurements currently being developed.

  12. Management implementation plan for a safety analysis and review system

    SciTech Connect (OSTI)

    Hulburt, D.A.; Berkey, B.D.

    1981-04-01T23:59:59.000Z

    The US Department of Energy has issued an Order, DOE 5481.1, which establishes uniform requirements for the preparation and review of Safety Analysis for DOE Operations. The Management Implementation Plan specified herein establishes the administrative procedures and technical requirements for implementing DOE 5481.1 to Operations under the cognizance of the Pittsburgh Energy Technology Center. This Implementation Plan is applicable to all present and future Operations under the cognizance of PETC. The Plan identifies those Operations for which DOE 5481.1 is applicable and those Operations for which no further analysis is required because the initial determination and review has concluded that DOE 5481.1 does not apply.

  13. Energy Engineering & Systems Analysis Success Stories

    E-Print Network [OSTI]

    Kemner, Ken

    of increasing heat fluxes and power loads in applications as diverse as medical equipment, power electronics, improve energy efficiency and lengthen device lifetime. To satisfy these increasing thermal management for engine or power electronics thermal management. However, these systems contribute to the size and weight

  14. Analysis of LNG peakshaving-facility release-prevention systems

    SciTech Connect (OSTI)

    Pelto, P.J.; Baker, E.G.; Powers, T.B.; Schreiber, A.M.; Hobbs, J.M.; Daling, P.M.

    1982-05-01T23:59:59.000Z

    The purpose of this study is to provide an analysis of release prevention systems for a reference LNG peakshaving facility. An overview assessment of the reference peakshaving facility, which preceeded this effort, identified 14 release scenarios which are typical of the potential hazards involved in the operation of LNG peakshaving facilities. These scenarios formed the basis for this more detailed study. Failure modes and effects analysis and fault tree analysis were used to estimate the expected frequency of each release scenario for the reference peakshaving facility. In addition, the effectiveness of release prevention, release detection, and release control systems were evaluated.

  15. The TROPOS Analysis Process as Graph Transformation System Paolo Bresciani

    E-Print Network [OSTI]

    Trento-Povo, Italy Abstract Tropos is an agent-oriented methodology that covers soft- ware developmentThe TROPOS Analysis Process as Graph Transformation System Paolo Bresciani ITC-irst via Sommarive of the operational environment of the new software system. In earlier work we have characterized the process of early

  16. Preventing power outages Power system contingency analysis on the GPU

    E-Print Network [OSTI]

    Vuik, Kees

    problem. Moreover, the power system has to keep functioning properly even when a transmission line failsPreventing power outages Power system contingency analysis on the GPU To provide electricity generators, nuclear power plants, wind turbines, etc.) and a network of lines and cables to transmit

  17. Thermodynamic Analysis of Combined Cycle District Heating System 

    E-Print Network [OSTI]

    Suresh, S.; Gopalakrishnan, H.; Kosanovic, D.

    2011-01-01T23:59:59.000Z

    generation systems that include a 10 MW Solar combustion gas turbine, a 4-MW steam turbine, a 100,000 pph heat recovery steam generator (HRSG), three 125,000 pph package boilers, and auxiliary equipment. In the analysis, actual system data is used to assess...

  18. EXERGETIC ANALYSIS OF A STEAM-FLASHING THERMAL STORAGE SYSTEM

    E-Print Network [OSTI]

    Abstract Thermal energy storage is attractive in the design of concentrator solar thermal systems because-scale thermal energy storage via hot compressed liquid water. Such a cycle is potentially interesting becauseEXERGETIC ANALYSIS OF A STEAM-FLASHING THERMAL STORAGE SYSTEM Paul T. O'Brien 1 , and John Pye 2 1

  19. Preliminary Findings from an Analysis of Building Energy Information System

    E-Print Network [OSTI]

    -based energy monitoring, web-based energy management linked to controls, demand response, and enterprise energyLBNL-2224E Preliminary Findings from an Analysis of Building Energy Information System Technologies of Building Energy Information System Technologies Jessica Granderson Mary Ann Piette Girish Ghatikar Phillip

  20. Cyber Threat Trees for Large System Threat Cataloging and Analysis*

    E-Print Network [OSTI]

    Thornton, Mitchell

    Cyber Threat Trees for Large System Threat Cataloging and Analysis* P. Ongsakorn, K. Turney, M, kturney, mitch, nair, szygenda, manikas}@lyle.smu.edu Abstract--The implementation of cyber threat. Because large systems have many possible threats that may be interdependent, it is crucial

  1. Information-Theoretic Analysis of an Energy Harvesting Communication System

    E-Print Network [OSTI]

    Ulukus, Sennur

    Information-Theoretic Analysis of an Energy Harvesting Communication System Omur Ozel Sennur Ulukus@umd.edu ulukus@umd.edu Abstract--In energy harvesting communication systems, an exogenous recharge process supplies energy for the data trans- mission and arriving energy can be buffered in a battery before

  2. Building integrated photovoltaic systems analysis: Preliminary report

    SciTech Connect (OSTI)

    none,

    1993-08-01T23:59:59.000Z

    The National Renewable Energy Laboratory (NREL) has estimated that the deployment of photovoltaics (PV) in the commercial buildings sector has the potential to contribute as much as 40 gigawatts peak electrical generation capacity and displace up to 1.1 quads of primary fuel use. A significant portion of this potential exists for smaller buildings under 25,000 square feet (2,300 square meters) in size or two stories or less, providing a strong cross over potential for residential applications as well. To begin to achieve this potential, research is needed to define the appropriate match of PV systems to energy end-uses in the commercial building sector. This report presents preliminary findings for a technical assessment of several alternative paths to integrate PV with building energy systems.

  3. NREL: Transportation Research - Systems Analysis and Integration

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What's Possible for Renewable Energy: Grid IntegrationReportTransmissionResearchNews NRELSuccessSystems

  4. Task 11 - systems analysis of environmental management technologies

    SciTech Connect (OSTI)

    Musich, M.A.

    1997-06-01T23:59:59.000Z

    A review was conducted of three systems analysis (SA) studies performed by Lockheed Idaho Technologies Company (LITCO) on integrated thermal treatment systems (ITTs) and integrated nonthermal treatment systems (INTSs) for the remediation of mixed low-level waste (MLLW) stored throughout the U.S. Department of Energy (DOE) weapons complex. The review was performed by an independent team led by the Energy & Environment Research Center (EERC), including Science Applications International Corporation (SAIC), the Waste Policy Institute (WPI), and Virginia Tech.

  5. System Analysis Success Stories | Department of Energy

    Office of Environmental Management (EM)

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33Frequently AskedEnergyIssues DOE'sSummaryDepartment of SustainXBetterProjects System

  6. Policy Analysis System (Polysys) | Open Energy Information

    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 onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnual SiteofEvaluatingGroupPerfectenergyInformation to Reduce Emissions from theSystem (Polysys)

  7. Ground Source Heat Pump System Data Analysis

    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 DataDepartment of Energy Your Density Isn't YourTransport(Fact Sheet), GeothermalGrid Integration and the CarryingPeer Review GSHP System

  8. Pump Life Cycle Costs: A Guide to LCC Analysis for Pumping Systems...

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

    Life Cycle Costs: A Guide to LCC Analysis for Pumping Systems - Executive Summary Pump Life Cycle Costs: A Guide to LCC Analysis for Pumping Systems - Executive Summary This...

  9. Next Generation Nuclear Plant Resilient Control System Functional Analysis

    SciTech Connect (OSTI)

    Lynne M. Stevens

    2010-07-01T23:59:59.000Z

    Control Systems and their associated instrumentation must meet reliability, availability, maintainability, and resiliency criteria in order for high temperature gas-cooled reactors (HTGRs) to be economically competitive. Research, perhaps requiring several years, may be needed to develop control systems to support plant availability and resiliency. This report functionally analyzes the gaps between traditional and resilient control systems as applicable to HTGRs, which includes the Next Generation Nuclear Plant; defines resilient controls; assesses the current state of both traditional and resilient control systems; and documents the functional gaps existing between these two controls approaches as applicable to HTGRs. This report supports the development of an overall strategy for applying resilient controls to HTGRs by showing that control systems with adequate levels of resilience perform at higher levels, respond more quickly to disturbances, increase operational efficiency, and increase public protection.

  10. Function analysis for waste information systems

    SciTech Connect (OSTI)

    Sexton, J.L.; Neal, C.T.; Heath, T.C.; Starling, C.D.

    1996-04-01T23:59:59.000Z

    This study has a two-fold purpose. It seeks to identify the functional requirements of a waste tracking information system and to find feasible alternatives for meeting those requirements on the Oak Ridge Reservation (ORR) and the Portsmouth (PORTS) and Paducah (PGDP) facilities; identify options that offer potential cost savings to the US government and also show opportunities for improved efficiency and effectiveness in managing waste information; and, finally, to recommend a practical course of action that can be immediately initiated. In addition to identifying relevant requirements, it also identifies any existing requirements that are currently not being completely met. Another aim of this study is to carry out preliminary benchmarking by contacting representative companies about their strategic directions in waste information. The information obtained from representatives of these organizations is contained in an appendix to the document; a full benchmarking effort, however, is beyond the intended scope of this study.

  11. A probability current analysis of energy transport in open quantum systems

    E-Print Network [OSTI]

    Jan J. J. Roden; K. Birgitta Whaley

    2015-01-24T23:59:59.000Z

    We introduce a probability current analysis of excitation energy transfer between states of an open quantum system. Expressing the energy transfer through currents of excitation probability between the states in a site representation enables us to gain key insights into the energy transfer dynamics. It allows to, i) identify the pathways of energy transport in large networks of sites and to quantify their relative weights, ii) quantify the respective contributions of unitary dynamics, dephasing, and relaxation/dissipation processes to the energy transfer, and iii) quantify the contribution of coherence to the energy transfer. Our analysis is general and can be applied to a broad range of open quantum system descriptions (with coupling to non-Markovian environments) in a straightforward manner.

  12. Engineering and Applied

    E-Print Network [OSTI]

    Stowell, Michael

    > Computer Science > Electrical, Computer, and Energy Engineering > Mechanical Engineering 11, Computational Science and Engineering, Energy Systems and Environmental Sustainability, Materials ScienceCollege of Engineering and Applied Science Contact Robert H. Davis, Engineering Dean 303

  13. Earthquake warning system for infrastructures : a scoping analysis.

    SciTech Connect (OSTI)

    Brodsky, Nancy S.; O'Connor, Sharon L.; Stamber, Kevin Louis; Kelic, Andjelka; Fogleman, William E. (GRIT, Inc., Albuquerque, NM); Vugrin, Eric D.; Corbet, Thomas Frank, Jr.; Brown, Theresa Jean

    2011-09-01T23:59:59.000Z

    This report provides the results of a scoping study evaluating the potential risk reduction value of a hypothetical, earthquake early-warning system. The study was based on an analysis of the actions that could be taken to reduce risks to population and infrastructures, how much time would be required to take each action and the potential consequences of false alarms given the nature of the action. The results of the scoping analysis indicate that risks could be reduced through improving existing event notification systems and individual responses to the notification; and production and utilization of more detailed risk maps for local planning. Detailed maps and training programs, based on existing knowledge of geologic conditions and processes, would reduce uncertainty in the consequence portion of the risk analysis. Uncertainties in the timing, magnitude and location of earthquakes and the potential impacts of false alarms will present major challenges to the value of an early-warning system.

  14. Life cycle analysis of energy systems: Methods and experience

    SciTech Connect (OSTI)

    Morris, S.C.

    1992-08-01T23:59:59.000Z

    Fuel-cycle analysis if not the same as life-cycle analysis, although the focus on defining a comprehensive system for analysis leads toward the same path. This approach was the basis of the Brookhaven Reference Energy System. It provided a framework for summing total effects over an explicitly defined fuel cycle. This concept was computerized and coupled with an extensive data base in ESNS -- the Energy Systems Network Simulator. As an example, ESNS was the analytical basis for a comparison of health and environmental effects of several coal conversion technologies. With advances in computer systems and methods, however, ESNS has not been maintained at Brookhaven. The RES approach was one of the bases of the OECD COMPASS Project and the UNEP comparative assessment of environmental impacts of energy sources. An RES model alone has limitations in analyzing complex energy systems, e.g., it is difficult to handle feedback in the network. The most recent version of a series of optimization models is MARKAL, a dynamic linear programming model now used to assess strategies to reduce greenhouse gas emissions from the energy system. MARKAL creates an optimal set of reference energy systems over multiple time periods, automatically incorporating dynamic feedback and allowing fuel switching and end-use conservation to meet useful energy demands.

  15. Life cycle analysis of energy systems: Methods and experience

    SciTech Connect (OSTI)

    Morris, S.C.

    1992-01-01T23:59:59.000Z

    Fuel-cycle analysis if not the same as life-cycle analysis, although the focus on defining a comprehensive system for analysis leads toward the same path. This approach was the basis of the Brookhaven Reference Energy System. It provided a framework for summing total effects over an explicitly defined fuel cycle. This concept was computerized and coupled with an extensive data base in ESNS -- the Energy Systems Network Simulator. As an example, ESNS was the analytical basis for a comparison of health and environmental effects of several coal conversion technologies. With advances in computer systems and methods, however, ESNS has not been maintained at Brookhaven. The RES approach was one of the bases of the OECD COMPASS Project and the UNEP comparative assessment of environmental impacts of energy sources. An RES model alone has limitations in analyzing complex energy systems, e.g., it is difficult to handle feedback in the network. The most recent version of a series of optimization models is MARKAL, a dynamic linear programming model now used to assess strategies to reduce greenhouse gas emissions from the energy system. MARKAL creates an optimal set of reference energy systems over multiple time periods, automatically incorporating dynamic feedback and allowing fuel switching and end-use conservation to meet useful energy demands.

  16. Method and system for calibrating acquired spectra for use in spectral analysis

    DOE Patents [OSTI]

    Reber, Edward L. (Idaho Falls, ID); Rohde, Kenneth W. (Idaho Falls, ID); Blackwood, Larry G. (Bozeman, MT)

    2010-09-14T23:59:59.000Z

    A method for calibrating acquired spectra for use in spectral analysis includes performing Gaussian peak fitting to spectra acquired by a plurality of NaI detectors to define peak regions. A Na and annihilation doublet may be located among the peak regions. A predetermined energy level may be applied to one of the peaks in the doublet and a location of a hydrogen peak may be predicted based on the location of at least one of the peaks of the doublet. Control systems for calibrating spectra are also disclosed.

  17. Applying MODFLOW to wet grassland in-field habitats: a case study from the Pevensey Levels, UK Hydrology and Earth System Sciences, 7(1), 4355 (2003) EGU

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Hydrology and Earth System Sciences, 7(1), 43­55 (2003) © EGU Applying MODFLOW to wet grassland in and Hydrology, Wallingford, OX10 8BB, UK Email for corresponding author: rbb@ceh.ac.uk Abstract Historical drainage improvements have created complex hydrological regimes in many low-lying, wet coastal grassland

  18. Electrohydrodynamic (EHD) Thermal Control Systems (TCS) operate by applying an electric field to a dielectric fluid that, in turn, generates a

    E-Print Network [OSTI]

    Farritor, Shane

    Electrohydrodynamic (EHD) Thermal Control Systems (TCS) operate by applying an electric field to a dielectric fluid that, in turn, generates a force that can be used to pump fluids and separate liquid Electrohydrodynamic (EHD) Based Thermal Control Subsytems at NASAGSFC Jeffrey R. Didion Mathew Showalter NASA Goddard

  19. Industrial Fellowship in Logistics Apply the tools of logistics science to analyze, modify or rebuild the logistics system of an industry-leader

    E-Print Network [OSTI]

    Lee, Chi-Guhn

    Industrial Fellowship in Logistics Project Apply the tools of logistics science to analyze, modify or rebuild the logistics system of an industry-leader automotive supplier company. Understand the logistics of logistics network, and investigate and quantify potential savings. Design the concept of a computerized

  20. Design theoretic analysis of three system modeling frameworks.

    SciTech Connect (OSTI)

    McDonald, Michael James

    2007-05-01T23:59:59.000Z

    This paper analyzes three simulation architectures from the context of modeling scalability to address System of System (SoS) and Complex System problems. The paper first provides an overview of the SoS problem domain and reviews past work in analyzing model and general system complexity issues. It then identifies and explores the issues of vertical and horizontal integration as well as coupling and hierarchical decomposition as the system characteristics and metrics against which the tools are evaluated. In addition, it applies Nam Suh's Axiomatic Design theory as a construct for understanding coupling and its relationship to system feasibility. Next it describes the application of MATLAB, Swarm, and Umbra (three modeling and simulation approaches) to modeling swarms of Unmanned Flying Vehicle (UAV) agents in relation to the chosen characteristics and metrics. Finally, it draws general conclusions for analyzing model architectures that go beyond those analyzed. In particular, it identifies decomposition along phenomena of interaction and modular system composition as enabling features for modeling large heterogeneous complex systems.

  1. Active cooling for downhole instrumentation: Preliminary analysis and system selection

    SciTech Connect (OSTI)

    Bennett, G.A.

    1988-03-01T23:59:59.000Z

    A feasibility study and a series of preliminary designs and analyses were done to identify candidate processes or cycles for use in active cooling systems for downhole electronic instruments. A matrix of energy types and their possible combinations was developed and the energy conversion process for each pari was identified. The feasibility study revealed conventional as well as unconventional processes and possible refrigerants and identified parameters needing further clarifications. A conceptual design or series od oesigns for each system was formulated and a preliminary analysis of each design was completed. The resulting coefficient of performance for each system was compared with the Carnot COP and all systems were ranked by decreasing COP. The system showing the best combination of COP, exchangeability to other operating conditions, failure mode, and system serviceability is chosen for use as a downhole refrigerator. 85 refs., 48 figs., 33 tabs.

  2. Macro-System Model for Hydrogen Energy Systems Analysis in Transportation: Preprint

    SciTech Connect (OSTI)

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

    2012-06-01T23:59:59.000Z

    The Hydrogen Macro System Model (MSM) is a simulation tool that links existing and emerging hydrogen-related models to perform rapid, cross-cutting analysis. It allows analysis of the economics, primary energy-source requirements, and emissions of hydrogen production and delivery pathways.

  3. Independent Component Analysis Applied to Pulse Oximetry in the Estimation of the Arterial Oxygen Saturation (SpO2)

    E-Print Network [OSTI]

    pulse oximetry sensor integrated in an Electronic Patch. This system is intended for patients reflective pulse oxime- try based on a novel ring-shaped optical sensor [1], [2], [3]. The Electronic Patch Bakke 23, 2400 Copenhagen NV, Denmark 1 cm LEDs Photo detector Hard plastic capsule Adhesive Fig. 1

  4. Introduction to Geographic Information System (GIS) and Geospatial Analysis Instructor: Dr. I-Kuai Hung

    E-Print Network [OSTI]

    Hung, I-Kuai

    GIS 551 Introduction to Geographic Information System (GIS) and Geospatial Analysis Fall 2010 Outcomes: Students will demonstrate competency in the fundamentals of GIS and geospatial analysis system for the management, analysis, and display of geographic information. GIS includes a set

  5. Business Systems Analysis With ever increasing amounts of data, organizations are identifying

    E-Print Network [OSTI]

    Miles, Will

    , business systems analysis and design, enterprise resource planning, project management and business process Institute of Business Analysis, SAP, the Project Management InBusiness Systems Analysis With ever increasing amounts of data, organizations are identifying

  6. Societal Research Archives System : Retrieval, quality control and analysis

    E-Print Network [OSTI]

    White, Douglas R.

    Societal Research Archives System : Retrieval, quality control and analysis of comparative data sample selection and data retrieval to correlation, data quality control, and testing for genetic, and White, 1967a). This represents 40 % of the approximate total number of such publications, but over 90

  7. Development of a Clinical Pathways Analysis System with Adaptive Bayesian

    E-Print Network [OSTI]

    Kopec, Danny

    Development of a Clinical Pathways Analysis System with Adaptive Bayesian Nets and Data Mining such analyses. The computation of "lift" (a measure of completed pathways improvement potential) leads us an artificial set of such records and use these for clinical pathways analyses. We use data mining software

  8. Wind Energy Conversion Systems Fault Diagnosis Using Wavelet Analysis

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Wind Energy Conversion Systems Fault Diagnosis Using Wavelet Analysis Elie Al-Ahmar1,2 , Mohamed El, induction generator, Discrete Wavelet Transform (DWT), failure diagnosis. I. Introduction Wind energy the condition of induction machines. Fig. 1. Worldwide growth of wind energy installed capacity [1]. 1 E. Al

  9. A DESIGN AND ANALYSIS TOOL FOR SOLAR ELECTRIC SYSTEMS

    E-Print Network [OSTI]

    Delaware, University of

    PV PLANNER A DESIGN AND ANALYSIS TOOL FOR SOLAR ELECTRIC SYSTEMS Updated User Manual May 2011 University of Delaware #12;Mailing Address: John Byrne Director Center for Energy and Environmental Policy) 831-3098 Website: http://ceep.udel.edu The Center for Energy and Environmental Policy conducts

  10. An Analysis of Heterogeneity in Futuristic Unmanned Vehicle Systems

    E-Print Network [OSTI]

    Cummings, Mary "Missy"

    and with enough automation aboard unmanned vehicles, inverting the multiple operators to single-vehicle control1 An Analysis of Heterogeneity in Futuristic Unmanned Vehicle Systems C.E. NEHME M.L. CUMMINGS paradigm is possible. These studies, however, have generally focused on homogeneous teams of vehicles

  11. Patent systems for encouraging innovation: Lessons from economic analysis1

    E-Print Network [OSTI]

    Boyer, Edmond

    1 Patent systems for encouraging innovation: Lessons from economic analysis1 David ENCAOUA (EUREQua version submitted October 2003) Abstract Economic theory views patents as policy instruments aimed. First, patents may not be the most effective means of protection for inventors to recover R

  12. Methods for air cleaning system design and accident analysis

    SciTech Connect (OSTI)

    Gregory, W.S.; Nichols, B.D.

    1986-01-01T23:59:59.000Z

    This paper describes methods, in the form of a handbook and five computer codes, that can be used for air cleaning system design and accident analysis. Four of the codes were developed primarily at the Los Alamos National Laboratory, and one was developed in France. Tools such as these are used to design ventilation systems in the mining industry but do not seem to be commonly used in the nuclear industry. For example, the Nuclear Air Cleaning Handbook is an excellent design reference, but it fails to include information on computer codes that can be used to aid in the design process. These computer codes allow the analyst to use the handbook information to form all the elements of a complete system design. Because these analysis methods are in the form of computer codes, they allow the analyst to investigate many alternative designs. In addition, the effects of many accident scenarios on the operation of the air cleaning system can be evaluated. These tools originally were intended for accident analysis, but they have been used mostly as design tools by several architect-engineering firms. The Cray, VAX, and personal computer versions of the codes, an accident analysis handbook, and the codes' availability will be discussed. The application of these codes to several design operations of nuclear facilities will be illustrated, and their use to analyze the effect of several accident scenarios also will be described.

  13. Transportation Policy Analysis and Systems Planning Fall 2009/2010

    E-Print Network [OSTI]

    Singh, Jaswinder Pal

    SYLLABUS WWS 527a Transportation Policy Analysis and Systems Planning Fall 2009/2010 Course Description Part 1. Perspective on the Transportation Sector of the Economy: Its Function, Its Players, Its of Course Elements of the transportation sector of the economy, the player, the technologies

  14. Analysis of Preventive Maintenance in Transactions Based Software Systems

    E-Print Network [OSTI]

    Telek, Miklós

    Analysis of Preventive Maintenance in Transactions Based Software Systems Sachin Garg 1 , Antonio''. However, it incurs some overhead. The necessity to do preventive maintenance not only in general purpose to illustrate the usefulness and applicability of the models. Keywords: Preventive Maintenance, Transactions

  15. Charles J. Vrsmarty & the UNH Water Systems Analysis Group

    E-Print Network [OSTI]

    Slatton, Clint

    .1 billion people lack clean drinking water 2.6 billion people lack basic sanitationCharles J. Vörösmarty & the UNH Water Systems Analysis Group Fall Water Institute Seminar Series Corridor #12;Goals for This Discussion · Describe chief forces shaping the contemporary and future water

  16. Selection of wavelets for analysis of power system disturbances

    E-Print Network [OSTI]

    Todorovic, Milos

    2002-01-01T23:59:59.000Z

    system applications . . . . . . . . . . . . . . 4 C. Summary, . 7 II WAVELET TRANSFORM . A. Introduction . . B. Wavelet transform and multiresolution analysis . . . C. Characteristic properties of wavelets. D. Summary . . . . . . . . 8... algorithm. . . . . . . I 3 3. Two-channel perfect reconstruction filter . . . 14 4. Typical voltage swell waveform. . . . . . . 22 5. Typical voltage sag waveform. . . . . 24 6. Typical voltage transinet disturbance waveform . . 7. Typical power...

  17. Hydrogen Storage Systems Analysis Working Group Meeting Argonne DC Offices

    E-Print Network [OSTI]

    Hydrogen Storage Systems Analysis Working Group Meeting Argonne DC Offices L'Enfant Plaza, Washington, DC December 4, 2007 SUMMARY REPORT Compiled by Romesh Kumar Argonne National Laboratory Working Group Meeting December 4, 2007 Argonne DC Offices, L'Enfant Plaza, Washington, DC Meeting

  18. Rewriting Modulo SMT and Open System Analysis Camilo Rocha1

    E-Print Network [OSTI]

    Muñoz, César A.

    Rewriting Modulo SMT and Open System Analysis Camilo Rocha1 , José Meseguer2 , and César Muñoz3, USA NASA Langley Research Center, Hampton VA, USA Abstract. This paper proposes rewriting modulo SMT, a new technique that combines the power of SMT solving, rewriting modulo theories, and model check- ing

  19. Response margins of the dynamic analysis of piping systems

    SciTech Connect (OSTI)

    Johnson, J.J.; Benda, B.J.; Chuang, T.Y.; Smith, P.D.

    1984-04-01T23:59:59.000Z

    This report is organized as follows: Section 2 describes the three piping systems of the Zion nuclear power plant which formed the basis of the present study. The auxiliary feedwater (AFW) piping from steam generator to containment, the residual heat removal (RHR) and safety injection piping in the auxiliary building, and the reactor coolant loops (RCL) including a portion of the branch lines were analyzed. Section 3 describes the analysis methods and the analyses performed. Section 4 presents the numerical results; the principal results presented as comparisons of response calculated by best estimate time history analysis methods vs. the SRP response spectrum technique. Section 5 draws conclusions from the results. Appendix A contains a brief description of the mathematical models that defined the structures containing the three piping systems. Response from these models provided input to the piping models. Appendix B provides a detailed derivation of the pseudostatic mode approach to the multisupport time history analysis method used in this study.

  20. Game theoretic analysis of physical protection system design

    SciTech Connect (OSTI)

    Canion, B.; Schneider, E. [Nuclear and Radiation Engineering Program, University of Texas, 204 E. Dean Keeton Street, Stop C2200, Austin, TX 78712 (United States); Bickel, E.; Hadlock, C.; Morton, D. [Operations Research Program, University of Texas, 204 E. Dean Keeton Street, Stop C2200, Austin, TX 78712 (United States)

    2013-07-01T23:59:59.000Z

    The physical protection system (PPS) of a fictional small modular reactor (SMR) facility have been modeled as a platform for a game theoretic approach to security decision analysis. To demonstrate the game theoretic approach, a rational adversary with complete knowledge of the facility has been modeled attempting a sabotage attack. The adversary adjusts his decisions in response to investments made by the defender to enhance the security measures. This can lead to a conservative physical protection system design. Since defender upgrades were limited by a budget, cost benefit analysis may be conducted upon security upgrades. One approach to cost benefit analysis is the efficient frontier, which depicts the reduction in expected consequence per incremental increase in the security budget.

  1. Applying Nonlinear Signal Analysis Technologies to Flame Scanner Signals to Improve Staging of Cyclone Boilers for NOx control

    SciTech Connect (OSTI)

    Flynn, T. J. [Babcock and Wilcox Company, The; Bailey, R. T. [Babcock and Wilcox Company, The; Fuller, T. A. [Babcock and Wilcox Company, The; FINNEY, Charles E A [ORNL; Daw, C Stuart [ORNL; Stallings, J. [Electric Power Research Institute (EPRI); Himes, R. [Electric Power Research Institute (EPRI); Bermke, R. [Alliant Energy

    2006-08-01T23:59:59.000Z

    Cyclone{trademark} boiler owners continue to drive down NO{sub x} emissions by increasingly sophisticated staging and air distribution schemes. For example, Alliant Energy has employed RMT's SmartBurn{reg_sign} technology, and Ameren UE has pioneered neural nets to reduce emissions. Over the last 11 years under sponsorship of EPRI, the team of ORNL and B&W has developed pulverized coal burner diagnostic technology by applying nonlinear signal analysis techniques to flame scanner signals. The team has extended the technology to cyclones to facilitate deeper staging of the cyclones to reduce NO{sub x} emissions. Development projects were conducted at the Alliant Energy Edgewater Units 3 and 4, and Ameren UE Sioux Unit 1. Nonlinear analysis statistics were correlated to upsets in cyclone operation resulting from poor air distribution in the burner and barrel. The team demonstrated that the lighter and main flame scanners can be used to independently guide adjustments to the burner and barrel.

  2. Control sensitivity indices for stability analysis of HVdc systems

    SciTech Connect (OSTI)

    Nayak, O.B.; Gole, A.M. [Univ. of Manitoba, Winnipeg, Manitoba (Canada)] [Univ. of Manitoba, Winnipeg, Manitoba (Canada); Chapman, D.G.; Davies, J.B. [Manitoba Hydro, Winnipeg, Manitoba (Canada)] [Manitoba Hydro, Winnipeg, Manitoba (Canada)

    1995-10-01T23:59:59.000Z

    This paper presents a new concept called the ``Control Sensitivity Index`` of CSI, for the stability analysis of HVdc converters connected to weak ac systems. The CSI for a particular control mode can be defined as the ratio of incremental changes in the two system variables that are most relevant to that control mode. The index provides valuable information on the stability of the system and, unlike other approaches, aids in the design of the controller. It also plays an important role in defining non-linear gains for the controller. This paper offers a generalized formulation of CSI and demonstrates its application through an analysis of the CSI for three modes of HVdc control. The conclusions drawn from the analysis are confirmed by a detailed electromagnetic transients simulation of the ac/dc system. The paper concludes that the CSI can be used to improve the controller design and, for an inverter in a weak ac system, the conventional voltage control mode is more stable than the conventional {gamma} control mode.

  3. Vehicle Technologies Office: Advanced Battery Development, System...

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

    materials and applied battery research into full battery systems for vehicles. The Vehicle Technologies Office's (VTO) Advanced Battery Development, System Analysis, and...

  4. The Systems Science & Industrial Engineering (SSIE) Department and The Thomas J. Watson School of Engineering and Applied

    E-Print Network [OSTI]

    Suzuki, Masatsugu

    The Systems Science & Industrial Engineering (SSIE) Department and The Thomas J. Watson School professionals, we will open the doors to demonstrate what industrial and systems engineers can contribute to any. We offer the BS degree in industrial and systems engineering (ISE), MEng degree in industrial

  5. NREL, CENTER FOR TRANSPORTATION TECHNOLOGIES AND SYSTEMS 1 Fuel Cell Vehicle Systems Analysis

    E-Print Network [OSTI]

    at 2003 Future Transportation Technology Conference 7/03* Expand database of fuel cell components 9NREL, CENTER FOR TRANSPORTATION TECHNOLOGIES AND SYSTEMS 1 Fuel Cell Vehicle Systems Analysis Tony Markel, Keith Wipke, Kristina Haraldsson, Ken Kelly, Andreas Vlahinos National Renewable Energy

  6. Application of System-Theoretic Process Analysis to Engineered Safety Features-Component Control System

    E-Print Network [OSTI]

    techniques identify. 1. Introduction Recent developments in safety-critical systems, such as nuclear powerC5.7 Application of System-Theoretic Process Analysis to Engineered Safety Features of Korea b,c Korea Atomic Energy Research Institute, 150 Deokjin, Yuseong Daejeon, 305-335, Republic

  7. Precursor Systems Analysis of Automated Highway Systems Activity Area J--Entry/Exit Implementation

    E-Print Network [OSTI]

    Varaiya, Pravin

    Precursor Systems Analysis of Automated Highway Systems Activity Area J--Entry/Exit Implementation This is the final report of a study of the following issues in the implementation of entry and exit in an Automated dedicated ramps; ffl Communication protocols for coordinating entry and exit maneuvers, and lateral

  8. System efficiency analysis for high power solid state radio frequency transmitter

    SciTech Connect (OSTI)

    Jain, Akhilesh, E-mail: ajain@rrcat.gov.in; Sharma, D. K.; Gupta, A. K.; Lad, M. R.; Hannurkar, P. R. [RF Systems Division, Raja Ramanna Centre for Advanced Technology, Indore 452013 (India)] [RF Systems Division, Raja Ramanna Centre for Advanced Technology, Indore 452013 (India); Pathak, S. K. [Electromagnetics and Microwave Engineering, Institute for Plasma Research, Gandhinagar 382 428 (India)] [Electromagnetics and Microwave Engineering, Institute for Plasma Research, Gandhinagar 382 428 (India)

    2014-02-15T23:59:59.000Z

    This paper examines some important relationships, related with the system efficiency, for very high power, radio frequency solid-state transmitter; incorporating multiple solid-state power amplifier modules, power combiners, dividers, couplers, and control/interlock hardware. In particular, the characterization of such transmitters, at the component as well as the system level, is discussed. The analysis for studying the influence of the amplitude and phase imbalance, on useful performance parameters like system efficiency and power distribution is performed. This analysis is based on a scattering parameter model. This model serves as a template for fine-tuning the results, with the help of a system level simulator. For experimental study, this approach is applied to a recently designed modular and scalable solid-state transmitter, operating at the centre frequency of 505.8?MHz and capable of delivering a continuous power of 75 kW. Such first time presented, system level study and experimental characterization for the real time operation will be useful for the high power solid-state amplifier designs, deployed in particle accelerators.

  9. Effective time-independent analysis for quantum kicked systems

    E-Print Network [OSTI]

    Jayendra N. Bandyopadhyay; Tapomoy Guha Sarkar

    2014-09-04T23:59:59.000Z

    We present a mapping of potentially chaotic time-dependent quantum kicked systems to an equivalent effective time-independent scenario, whereby the system is rendered integrable. The time-evolution is factorized into an initial kick, followed by an evolution dictated by a time-independent Hamiltonian and a final kick. This method is applied to the kicked top model. The effective time-independent Hamiltonian thus obtained, does not suffer from spurious divergences encountered if the traditional Baker-Cambell-Hausdorff treatment is used. The quasienergy spectrum of the Floquet operator is found to be in excellent agreement with the energy levels of the effective Hamiltonian for a wide range of system parameters. The density of states for the effective system exhibits sharp peak-like features, pointing towards quantum criticality. The dynamics in the classical limit of the integrable effective Hamiltonian shows remarkable agreement with the non-integrable map corresponding to the actual time-dependent system in the non-chaotic regime. This suggests that the effective Hamiltonian serves as a substitute for the actual system in the non-chaotic regime at both the quantum and classical level.

  10. Systems analysis approach to the disposal of high-level waste in deep ocean sediments

    SciTech Connect (OSTI)

    de Marsily, G.; Hill, M. D.; Murray, C. N.; Talbert, D. M.; Van Dorp, F.; Webb, G. A.M.

    1980-01-01T23:59:59.000Z

    Among the different options being studied for disposal of high-level solidified waste, increasing attention is being paid to that of emplacement of glasses incorporating the radioactivity in deep oceanic sediments. This option has the advantage that the areas of the oceans under investigation appear to be relatively unproductive biologically, are relatively free from cataclysmic events, and are areas in which the natural processes are slow. Thus the environment is stable and predictable so that a number of barriers to the release and dispersion of radioactivity can be defined. Task Groups set up in the framework of the International Seabed Working Group have been studying many aspects of this option since 1976. In order that the various parts of the problem can be assessed within an integrated framework, the methods of systems analysis have been applied. In this paper the Systems Analysis Task Group members report the development of an overall system model. This will be used in an iterative process in which a preliminary analysis, together with a sensitivity analysis, identifies the parameters and data of most importance. The work of the other task groups will then be focussed on these parameters and data requirements so that improved results can be fed back into an improved overall systems model. The major requirements for the development of a preliminary overall systems model are that the problem should be separated into identified elements and that the interfaces between the elements should be clearly defined. The model evolved is deterministic and defines the problem elements needed to estimate doses to man.

  11. GCtool for fuel cell systems design and analysis : user documentation.

    SciTech Connect (OSTI)

    Ahluwalia, R.K.; Geyer, H.K.

    1999-01-15T23:59:59.000Z

    GCtool is a comprehensive system design and analysis tool for fuel cell and other power systems. A user can analyze any configuration of component modules and flows under steady-state or dynamic conditions. Component models can be arbitrarily complex in modeling sophistication and new models can be added easily by the user. GCtool also treats arbitrary system constraints over part or all of the system, including the specification of nonlinear objective functions to be minimized subject to nonlinear, equality or inequality constraints. This document describes the essential features of the interpreted language and the window-based GCtool environment. The system components incorporated into GCtool include a gas flow mixer, splitier, heater, compressor, gas turbine, heat exchanger, pump, pipe, diffuser, nozzle, steam drum, feed water heater, combustor, chemical reactor, condenser, fuel cells (proton exchange membrane, solid oxide, phosphoric acid, and molten carbonate), shaft, generator, motor, and methanol steam reformer. Several examples of system analysis at various levels of complexity are presented. Also given are instructions for generating two- and three-dimensional plots of data and the details of interfacing new models to GCtool.

  12. Heat transfer analysis capabilities of the scale computational system

    SciTech Connect (OSTI)

    Parks, C.V.; Giles, G.E.; Childs, K.W.; Bryan, C.B.

    1986-01-01T23:59:59.000Z

    The heat transfer capabilities within the modular SCALE computational system are centered about the HEATING6 functional module. This paper reviews the features and modeling capabilities of HEATING6, discusses the supportive plotting capabilities of REGPLOT6 and HEATPLOT-S, and finally provides a general description of the Heat Transfer Analysis Sequence No.1 (HTASI) available in SCALE for performing thermal analyses of transport casks via HEATING6. The HTASI control module is an easy-to-use tool that allows an inexperienced HEATING6 user to obtain reliable thermal analysis results. A summary of the recent verification efforts undertaken for HEATING6 is also provided. 16 refs., 14 figs.

  13. PVUSA instrumentation and data analysis techniques for photovoltaic systems

    SciTech Connect (OSTI)

    Newmiller, J.; Hutchinson, P.; Townsend, T.; Whitaker, C.

    1995-10-01T23:59:59.000Z

    The Photovoltaics for Utility Scale Applications (PVUSA) project tests two types of PV systems at the main test site in Davis, California: new module technologies fielded as 20-kW Emerging Module Technology (EMT) arrays and more mature technologies fielded as 70- to 500-kW turnkey Utility-Scale (US) systems. PVUSA members have also installed systems in their service areas. Designed appropriately, data acquisition systems (DASs) can be a convenient and reliable means of assessing system performance, value, and health. Improperly designed, they can be complicated, difficult to use and maintain, and provide data of questionable validity. This report documents PVUSA PV system instrumentation and data analysis techniques and lessons learned. The report is intended to assist utility engineers, PV system designers, and project managers in establishing an objective, then, through a logical series of topics, facilitate selection and design of a DAS to meet the objective. Report sections include Performance Reporting Objectives (including operational versus research DAS), Recommended Measurements, Measurement Techniques, Calibration Issues, and Data Processing and Analysis Techniques. Conclusions and recommendations based on the several years of operation and performance monitoring are offered. This report is one in a series of 1994--1995 PVUSA reports documenting PVUSA lessons learned at the demonstration sites in Davis and Kerman, California. Other topical reports address: five-year assessment of EMTs; validation of the Kerman 500-kW grid support PV plant benefits; construction and safety experience in installing and operating PV systems; balance-of-system design and costs; procurement, acceptance, and rating practices for PV power plants; experience with power conditioning units and power quality.

  14. Improvement of extraction efficiency from a compact synchrotron for proton beam therapy by applying particle tracking analysis

    SciTech Connect (OSTI)

    Ebina, Futaro; Umezawa, Masumi; Hiramoto, Kazuo [Hitachi Research Laboratory, Hitachi, Ltd. 2-1, Omika-cho 7-chome, Hitachi-shi, Ibaraki-ken, 319-1221 (Japan)

    2013-04-19T23:59:59.000Z

    Various types of synchrotrons are used for particle beam therapy. In particle beam therapy, especially in proton beam therapy, downsizing of the accelerator system is a major concern. A compact synchrotron dedicated for proton beam therapy is presented. The synchrotron is horizontally weakly focusing and consists of 4 H-type zerogradient dipole magnets and 4 quadrupole magnets. The circumference of the ring is a little shorter than 18 m, and the energies are up to 230MeV. Beam extraction from the synchrotron is performed by RF-driven slow extraction technology. Two sextupole magnets set in adjacent straight sections form a horizontal separatrix which is fixed during the beam extraction. Horizontal RF voltage excites betatron oscillation of the circulating beam, and protons exceeding the separatrix are extracted by an electrostatic deflector and a horizontal septum dipole magnet. To achieve adequately high extraction efficiency, the relationship between the extraction efficiency and the horizontal chromaticity of the ring is analyzed by particle tracking simulation. The horizontal chromaticity with maximum extraction efficiency is half of the theoretical value because of the distortion of the horizontal separatrix for the extraction. With this chromaticity, the spiral-step of the extracted particle is independent of the momentum deviation of the particle, and the separatrix across the electrostatic septum electrodes is superpositioned.

  15. Control system analysis for off-peak auxiliary heating of passive solar systems

    SciTech Connect (OSTI)

    Murray, H.S.; Melsa, J.L.; Balcomb, J.D.

    1980-01-01T23:59:59.000Z

    A computer simulation method is presented for the design of an electrical auxiliary energy system for passive solar heated structures. The system consists of electrical mats buried in the ground underneath the structure. Energy is stored in the ground during utility off-peak hours and released passively to the heated enclosure. An optimal control strategy is used to determine the system design parameters of depth of mat placement and minimum instaled electrical heating capacity. The optimal control applies combinations of fixed duration energy pulses to the heater, which minimize the room temperature error-squared for each day, assuming advance knowledge of the day's weather. Various realizable control schemes are investigated in an attempt to find a system that approaches the performance of the optimal control system.

  16. Safety analysis report for packaging (onsite) doorstop samplecarrier system

    SciTech Connect (OSTI)

    Obrien, J.H.

    1997-02-24T23:59:59.000Z

    The Doorstop Sample Carrier System consists of a Type B certified N-55 overpack, U.S. Department of Transportation (DOT) specification or performance-oriented 208-L (55-gal) drum (DOT 208-L drum), and Doorstop containers. The purpose of the Doorstop Sample Carrier System is to transport samples onsite for characterization. This safety analysis report for packaging (SARP) provides the analyses and evaluation necessary to demonstrate that the Doorstop Sample Carrier System meets the requirements and acceptance criteria for both Hanford Site normal transport conditions and accident condition events for a Type B package. This SARP also establishes operational, acceptance, maintenance, and quality assurance (QA) guidelines to ensure that the method of transport for the Doorstop Sample Carrier System is performed safely in accordance with WHC-CM-2-14, Hazardous Material Packaging and Shipping.

  17. Technical analysis of prospective photovoltaic systems in Utah.

    SciTech Connect (OSTI)

    Quiroz, Jimmy Edward; Cameron, Christopher P.

    2012-02-01T23:59:59.000Z

    This report explores the technical feasibility of prospective utility-scale photovoltaic system (PV) deployments in Utah. Sandia National Laboratories worked with Rocky Mountain Power (RMP), a division of PacifiCorp operating in Utah, to evaluate prospective 2-megawatt (MW) PV plants in different locations with respect to energy production and possible impact on the RMP system and customers. The study focused on 2-MW{sub AC} nameplate PV systems of different PV technologies and different tracking configurations. Technical feasibility was evaluated at three different potential locations in the RMP distribution system. An advanced distribution simulation tool was used to conduct detailed time-series analysis on each feeder and provide results on the impacts on voltage, demand, voltage regulation equipment operations, and flicker. Annual energy performance was estimated.

  18. Anti-optimisation applied to the analysis of rotor/stator interaction Note: this article is part of the proceedings of the Turbo Expo 2013 conference (paper GT2013-

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Anti-optimisation applied to the analysis of rotor/stator interaction Note: this article is part in the design process, so there is a need for efficient and practical computational models that can predict

  19. Decision Analysis System for Selection of Appropriate Decontamination Technologies

    SciTech Connect (OSTI)

    Ebadian, M.A.; Boudreaux, J.F.; Chinta, S.; Zanakis, S.H.

    1998-01-01T23:59:59.000Z

    The principal objective for designing Decision Analysis System for Decontamination (DASD) is to support DOE-EM's endeavor to employ the most efficient and effective technologies for treating radiologically contaminated surfaces while minimizing personnel and environmental risks. DASD will provide a tool for environmental decision makers to improve the quality, consistency, and efficacy of their technology selection decisions. The system will facilitate methodical comparisons between innovative and baseline decontamination technologies and aid in identifying the most suitable technologies for performing surface decontamination at DOE environmental restoration sites.

  20. Spin system trajectory analysis under optimal control pulses

    E-Print Network [OSTI]

    Ilya Kuprov

    2012-12-18T23:59:59.000Z

    Several methods are proposed for the analysis, visualization and interpretation of high-dimensional spin system trajectories produced by quantum mechanical simulations. It is noted that expectation values of specific observables in large spin systems often feature fast, complicated and hard-to-interpret time dynamics and suggested that populations of carefully selected subspaces of states are much easier to analyze and interpret. As an illustration of the utility of the proposed methods, it is demonstrated that the apparent "noisy" appearance of many optimal control pulses in NMR and EPR spectroscopy is an illusion - the underlying spin dynamics is shown to be smooth, orderly and very tightly controlled.

  1. Spectral analysis for semi-infinite mass-spring systems

    E-Print Network [OSTI]

    Rafael del Rio; Luis O. Silva

    2014-07-29T23:59:59.000Z

    We study how the spectrum of a Jacobi operator changes when this operator is modified by a certain finite rank perturbation. The operator corresponds to an infinite mass-spring system and the perturbation is obtained by modifying one interior mass and one spring of this system. In particular, there are detailed results of what happens in the spectral gaps and which eigenvalues do not move under the modifications considered. These results were obtained by a new tecnique of comparative spectral analysis and they generalize and include previous results for finite and infinite Jacobi matrices.

  2. A new tool for accelerator system modeling and analysis

    SciTech Connect (OSTI)

    Gillespie, G.H.; Hill, B.W. [G.H. Gillespie Associates, Inc., Del Mar, CA (United States); Jameson, R.A. [Los Alamos National Lab., NM (United States)

    1994-09-01T23:59:59.000Z

    A novel computer code is being developed to generate system level designs of radiofrequency ion accelerators. The goal of the Accelerator System Model (ASM) code is to create a modeling and analysis tool that is easy to use, automates many of the initial design calculations, supports trade studies used in assessing alternate designs and yet is flexible enough to incorporate new technology concepts as they emerge. Hardware engineering parameters and beam dynamics are modeled at comparable levels of fidelity. Existing scaling models of accelerator subsystems were sued to produce a prototype of ASM (version 1.0) working within the Shell for Particle Accelerator Related Codes (SPARC) graphical user interface. A small user group has been testing and evaluating the prototype for about a year. Several enhancements and improvements are now being developed. The current version (1.1) of ASM is briefly described and an example of the modeling and analysis capabilities is illustrated.

  3. Simulated, Emulated, and Physical Investigative Analysis (SEPIA) of networked systems.

    SciTech Connect (OSTI)

    Burton, David P.; Van Leeuwen, Brian P.; McDonald, Michael James; Onunkwo, Uzoma A.; Tarman, Thomas David; Urias, Vincent E.

    2009-09-01T23:59:59.000Z

    This report describes recent progress made in developing and utilizing hybrid Simulated, Emulated, and Physical Investigative Analysis (SEPIA) environments. Many organizations require advanced tools to analyze their information system's security, reliability, and resilience against cyber attack. Today's security analysis utilize real systems such as computers, network routers and other network equipment, computer emulations (e.g., virtual machines) and simulation models separately to analyze interplay between threats and safeguards. In contrast, this work developed new methods to combine these three approaches to provide integrated hybrid SEPIA environments. Our SEPIA environments enable an analyst to rapidly configure hybrid environments to pass network traffic and perform, from the outside, like real networks. This provides higher fidelity representations of key network nodes while still leveraging the scalability and cost advantages of simulation tools. The result is to rapidly produce large yet relatively low-cost multi-fidelity SEPIA networks of computers and routers that let analysts quickly investigate threats and test protection approaches.

  4. Thermoacoustic instability - a dynamical system and time domain analysis

    E-Print Network [OSTI]

    Sayadi, Taraneh; Schmid, Peter; Richecoeur, Franck; Massot, Marc

    2013-01-01T23:59:59.000Z

    This study focuses on the Rijke tube problem, which includes features relevant to the modeling of thermoacoustic coupling in reactive flows: a compact acoustic source, an empirical model for the heat source, and nonlinearities. This system features both linear and nonlinear flow regimes with complex dynamical behavior. In order to synthesize accurate time-series, we tackle this problem from a numerical point-of-view, and start by proposing a dedicated solver designed for dealing with the underlying stiffness, in particular, the retarded time and the discontinuity at the location of the heat source. Stability analysis is performed on the limit of the low amplitude perturbations by means of the projection method proposed by Jarlebring (2008), which alleviates the linearization of the retarded term. The results are then compared to the analytical solution of the undamped system, in addition to the analysis based on Galerkin projection. The method provides insight into the consequence of the simplification due to...

  5. Systems analysis of past, present, and future chemical terrorism scenarios.

    SciTech Connect (OSTI)

    Hoette, Trisha Marie

    2012-03-01T23:59:59.000Z

    Throughout history, as new chemical threats arose, strategies for the defense against chemical attacks have also evolved. As a part of an Early Career Laboratory Directed Research and Development project, a systems analysis of past, present, and future chemical terrorism scenarios was performed to understand how the chemical threats and attack strategies change over time. For the analysis, the difficulty in executing chemical attack was evaluated within a framework of three major scenario elements. First, historical examples of chemical terrorism were examined to determine how the use of chemical threats, versus other weapons, contributed to the successful execution of the attack. Using the same framework, the future of chemical terrorism was assessed with respect to the impact of globalization and new technologies. Finally, the efficacy of the current defenses against contemporary chemical terrorism was considered briefly. The results of this analysis justify the need for continued diligence in chemical defense.

  6. Trajectory analysis and optimization system (TAOS) user`s manual

    SciTech Connect (OSTI)

    Salguero, D.E.

    1995-12-01T23:59:59.000Z

    The Trajectory Analysis and Optimization System (TAOS) is software that simulates point--mass trajectories for multiple vehicles. It expands upon the capabilities of the Trajectory Simulation and Analysis program (TAP) developed previously at Sandia National Laboratories. TAOS is designed to be a comprehensive analysis tool capable of analyzing nearly any type of three degree-of-freedom, point-mass trajectory. Trajectories are broken into segments, and within each segment, guidance rules provided by the user control how the trajectory is computed. Parametric optimization provides a powerful method for satisfying mission-planning constraints. Althrough TAOS is not interactive, its input and output files have been designed for ease of use. When compared to TAP, the capability to analyze trajectories for more than one vehicle is the primary enhancement, although numerous other small improvements have been made. This report documents the methods used in TAOS as well as the input and output file formats.

  7. Reliability analysis of electric power systems including time dependent sources 

    E-Print Network [OSTI]

    Kim, Younjong

    1987-01-01T23:59:59.000Z

    Chairman of Advisory Committee: Chanan Singh A method for reliability analysis of electric power systems with time dependent sources, such as photovoltaic and wind generation, is introduced. The fluctuating characteristic of unconventional generation... and active solar. wind, geothermal, and hydropower. Of all the renewable energy technologies that have been the focus of encouraging government and private R k D efforts, photovoltaic generation and wind turbine generation appear to be the leading...

  8. System and method for high precision isotope ratio destructive analysis

    DOE Patents [OSTI]

    Bushaw, Bruce A; Anheier, Norman C; Phillips, Jon R

    2013-07-02T23:59:59.000Z

    A system and process are disclosed that provide high accuracy and high precision destructive analysis measurements for isotope ratio determination of relative isotope abundance distributions in liquids, solids, and particulate samples. The invention utilizes a collinear probe beam to interrogate a laser ablated plume. This invention provides enhanced single-shot detection sensitivity approaching the femtogram range, and isotope ratios that can be determined at approximately 1% or better precision and accuracy (relative standard deviation).

  9. Safety analysis report for packaging (onsite) sample pig transport system

    SciTech Connect (OSTI)

    MCCOY, J.C.

    1999-03-16T23:59:59.000Z

    This Safety Analysis Report for Packaging (SARP) provides a technical evaluation of the Sample Pig Transport System as compared to the requirements of the U.S. Department of Energy, Richland Operations Office (RL) Order 5480.1, Change 1, Chapter III. The evaluation concludes that the package is acceptable for the onsite transport of Type B, fissile excepted radioactive materials when used in accordance with this document.

  10. Transportation Routing Analysis Geographic Information System (TRAGIS) User's Manual

    SciTech Connect (OSTI)

    Johnson, PE

    2003-09-18T23:59:59.000Z

    The Transportation Routing Analysis Geographic Information System (TRAGIS) model is used to calculate highway, rail, or waterway routes within the United States. TRAGIS is a client-server application with the user interface and map data files residing on the user's personal computer and the routing engine and network data files on a network server. The user's manual provides documentation on installation and the use of the many features of the model.

  11. NREL's System Advisor Model Simplifies Complex Energy Analysis (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2015-01-01T23:59:59.000Z

    NREL has developed a tool -- the System Advisor Model (SAM) -- that can help decision makers analyze cost, performance, and financing of any size grid-connected solar, wind, or geothermal power project. Manufacturers, engineering and consulting firms, research and development firms, utilities, developers, venture capital firms, and international organizations use SAM for end-to-end analysis that helps determine whether and how to make investments in renewable energy projects.

  12. Systems analysis of hydrogen supplementation in natural gas pipelines

    SciTech Connect (OSTI)

    Hermelee, A.; Beller, M.; D'Acierno, J.

    1981-11-01T23:59:59.000Z

    The potential for hydrogen supplementation in natural gas pipelines is analyzed for a specific site from both mid-term (1985) and long-term perspectives. The concept of supplementing natural gas with the addition of hydrogen in the existing gas pipeline system serves to provide a transport and storage medium for hydrogen while eliminating the high investment costs associated with constructing separate hydrogen pipelines. This paper examines incentives and barriers to the implementation of this concept. The analysis is performed with the assumption that current developmental programs will achieve a process for cost-effectively separating pure hydrogen from natural gas/hydrogen mixtures to produce a separable and versatile chemical and fuel commodity. The energy systems formulation used to evaluate the role of hydrogen in the energy infrastructure is the Reference Energy System (RES). The RES is a network diagram that provides an analytic framework for incorporating all resources, technologies, and uses of energy in a uniform manner. A major aspect of the study is to perform a market analysis of traditional uses of resources in the various consuming sectors and the potential for hydrogen substitution in these sectors. The market analysis will focus on areas of industry where hydrogen is used as a feedstock rather than for its fuel-use opportunities to replace oil and natural gas. The sectors of industry where hydrogen is currently used and where its use can be expanded or substituted for other resources include petroleum refining, chemicals, iron and steel, and other minor uses.

  13. A graph-based system for network-vulnerability analysis

    SciTech Connect (OSTI)

    Swiler, L.P.; Phillips, C.

    1998-06-01T23:59:59.000Z

    This paper presents a graph-based approach to network vulnerability analysis. The method is flexible, allowing analysis of attacks from both outside and inside the network. It can analyze risks to a specific network asset, or examine the universe of possible consequences following a successful attack. The graph-based tool can identify the set of attack paths that have a high probability of success (or a low effort cost) for the attacker. The system could be used to test the effectiveness of making configuration changes, implementing an intrusion detection system, etc. The analysis system requires as input a database of common attacks, broken into atomic steps, specific network configuration and topology information, and an attacker profile. The attack information is matched with the network configuration information and an attacker profile to create a superset attack graph. Nodes identify a stage of attack, for example the class of machines the attacker has accessed and the user privilege level he or she has compromised. The arcs in the attack graph represent attacks or stages of attacks. By assigning probabilities of success on the arcs or costs representing level-of-effort for the attacker, various graph algorithms such as shortest-path algorithms can identify the attack paths with the highest probability of success.

  14. Uncertainty and sensitivity analysis for photovoltaic system modeling.

    SciTech Connect (OSTI)

    Hansen, Clifford W.; Pohl, Andrew Phillip; Jordan, Dirk [National Center for Photovoltaics, National Renewable Energy Laboratory, Golden, CO] [National Center for Photovoltaics, National Renewable Energy Laboratory, Golden, CO

    2013-12-01T23:59:59.000Z

    We report an uncertainty and sensitivity analysis for modeling DC energy from photovoltaic systems. We consider two systems, each comprised of a single module using either crystalline silicon or CdTe cells, and located either at Albuquerque, NM, or Golden, CO. Output from a PV system is predicted by a sequence of models. Uncertainty in the output of each model is quantified by empirical distributions of each model's residuals. We sample these distributions to propagate uncertainty through the sequence of models to obtain an empirical distribution for each PV system's output. We considered models that: (1) translate measured global horizontal, direct and global diffuse irradiance to plane-of-array irradiance; (2) estimate effective irradiance from plane-of-array irradiance; (3) predict cell temperature; and (4) estimate DC voltage, current and power. We found that the uncertainty in PV system output to be relatively small, on the order of 1% for daily energy. Four alternative models were considered for the POA irradiance modeling step; we did not find the choice of one of these models to be of great significance. However, we observed that the POA irradiance model introduced a bias of upwards of 5% of daily energy which translates directly to a systematic difference in predicted energy. Sensitivity analyses relate uncertainty in the PV system output to uncertainty arising from each model. We found that the residuals arising from the POA irradiance and the effective irradiance models to be the dominant contributors to residuals for daily energy, for either technology or location considered. This analysis indicates that efforts to reduce the uncertainty in PV system output should focus on improvements to the POA and effective irradiance models.

  15. Heat Transfer Analysis and Assessment of Kinetics Systems for PBX 9501

    SciTech Connect (OSTI)

    Jeffrey W. Jorenby

    2006-07-31T23:59:59.000Z

    The study of thermal decomposition in high explosive (HE) charges has been an ongoing process since the early 1900s. This work is specifically directed towards the analysis of PBX 9501. In the early 1970s, Dwight Jaeger of Los Alamos National Laboratory (LANL) developed a single-step, two-species kinetics system that was used in the development of one of the first finite element codes for thermal analyses known as EXPLO. Jaeger's research focused on unconfined spherical samples of HE charges to determine if varied heating ramps would cause detonation or deflagration. Tarver and McGuire of Lawrence Livermore National Laboratory (LLNL) followed soon after with a three-step, four-species kinetics system that was developed for confined spheres under relatively fast heating conditions. Peter Dickson et al. of LANL then introduced a kinetics system with four steps and five species that included bimolecular products to capture the effects of the endothermic phase change that the HE undergoes. The results of four experiments are examined to study the effectiveness of these kinetics systems. The experiments are: (1) The LLNL scaled thermal explosion (STEX) experiments on confined cylindrical charges with long heating ramps in the range of 90 hours. (2) The LLNL one-dimensional time to explosion (ODTX) experiments on spherical charges that include confined, partially confined, and aged HE experiments. (3) The LANL unconfined one-dimensional experiments for small spheres. (4) The Naval Air Warfare Center Weapons Division at China Lake experiments on small confined cylinders. The three kinetics systems are applied to each of the four experiments with the use of the finite element analysis (FEA) heat conduction solver COYOTE. The numerical results using the kinetics systems are compared to each other and to the experimental data to determine which kinetics systems are best suited for analyzing conditions such as time to ignition, containment, heating time, and location of ignition.

  16. Applied chromodynamics

    SciTech Connect (OSTI)

    Brodsky, S.J.

    1983-11-01T23:59:59.000Z

    A number of novel features of QCD are reviewed, including the consequences of formation zone and color transparency phenomena in hadronic collisions, the use of automatic scale setting for perturbative predictions, null-zone phenomena as a fundamental test of gauge theory, and the relationship of intrinsic heavy colored particle Fock state components to new particle production. We conclude with a review of the applications of QCD to nuclear multiquark systems. 74 references.

  17. SCALE 6: Comprehensive Nuclear Safety Analysis Code System

    SciTech Connect (OSTI)

    Bowman, Stephen M [ORNL

    2011-01-01T23:59:59.000Z

    Version 6 of the Standardized Computer Analyses for Licensing Evaluation (SCALE) computer software system developed at Oak Ridge National Laboratory, released in February 2009, contains significant new capabilities and data for nuclear safety analysis and marks an important update for this software package, which is used worldwide. This paper highlights the capabilities of the SCALE system, including continuous-energy flux calculations for processing multigroup problem-dependent cross sections, ENDF/B-VII continuous-energy and multigroup nuclear cross-section data, continuous-energy Monte Carlo criticality safety calculations, Monte Carlo radiation shielding analyses with automated three-dimensional variance reduction techniques, one- and three-dimensional sensitivity and uncertainty analyses for criticality safety evaluations, two- and three-dimensional lattice physics depletion analyses, fast and accurate source terms and decay heat calculations, automated burnup credit analyses with loading curve search, and integrated three-dimensional criticality accident alarm system analyses using coupled Monte Carlo criticality and shielding calculations.

  18. Analysis of reactor trips originating in balance of plant systems

    SciTech Connect (OSTI)

    Stetson, F.T.; Gallagher, D.W.; Le, P.T.; Ebert, M.W. (Science Applications International Corp., McLean, VA (USA))

    1990-09-01T23:59:59.000Z

    This report documents the results of an analysis of balance-of-plant (BOP) related reactor trips at commercial US nuclear power plants of a 5-year period, from January 1, 1984, through December 31, 1988. The study was performed for the Plant Systems Branch, Office of Nuclear Reactor Regulation, US Nuclear Regulatory Commission. The objectives of the study were: to improve the level of understanding of BOP-related challenges to safety systems by identifying and categorizing such events; to prepare a computerized data base of BOP-related reactor trip events and use the data base to identify trends and patterns in the population of these events; to investigate the risk implications of BOP events that challenge safety systems; and to provide recommendations on how to address BOP-related concerns in regulatory context. 18 refs., 2 figs., 27 tabs.

  19. A System Degradation Study of 445 Systems Using Year-Over-Year Performance Index Analysis

    Broader source: Energy.gov [DOE]

    This graphic summarizes the results of a study conducted by the SunPower Corporation, to assess the median degradation of a large number of systems. This is important because solar investors need proof of low degradation. The study, a project under DOE's SunShot Initiative, makes use of year-over-year performance index change analysis, a powerful and practical technique for assessing the median degradation of a large fleet of systems, which in this case includes a sample of 445.

  20. 9th International Conference on Probabilistic Methods Applied to Power Systems KTH, Stockholm, Sweden -June 11-15, 2006 1

    E-Print Network [OSTI]

    Gross, George

    reliability, is the ability of a system with a fixed resource demand bids ofprice responsive buyers the capabilities of the framework by using it to aggregate customer demand [1]. Resource adequacy addresses assess to serve illustrated by the California market experience during the 2000- the demand, they may engage in so

  1. Abstract--In legged systems design an important question applies to: "What can be inferred from the performance of a

    E-Print Network [OSTI]

    Papadopoulos, Evangelos

    . A relevant example of a scaling law is provided by the Froude number, [3]. The Froude number is twice the ratio of the kinetic energy to the gravitational potential energy of a system. Particularly in legged that existing electric drives impose. Initially, simple scaling laws are derived from first princi- ples where

  2. Tank waste remediation system retrieval and disposal mission phase 1 financial analysis

    SciTech Connect (OSTI)

    Wells, M.W.

    1998-01-09T23:59:59.000Z

    The purpose of the Tank Waste Remediation System (TWRS) Retrieval and Disposal Mission Phase 1 Financial Analysis is to provide a quantitative and qualitative cost and schedule risk analysis of HNF-1946, Tank Waste Remediation System Retrieval and Disposal Mission Initial Updated Baseline (Swita et al. 1998). The Updated Baseline (Section 3.0) is compared to the current TWRS Project Multi-Year Work Plan (MYWP) for fiscal year (FY) 1998 and target budgets for FY 1999 through FY 2011 (Section 4.1). The analysis then evaluates the executability of HNF-1946 (Sections 4.2 through 4.5) and recommends a path forward for risk mitigation (Sections 4.6, 4.7, and 5.0). A sound systems engineering approach was applied to understand and analyze the Phase 1B Retrieval and Disposal mission. Program and Level 1 Logics were decomposed to Level 8 of the Work Breakdown Structure (WBS) where logic was detailed, scope was defined, detail durations and estimates prepared, and resource loaded schedules developed. Technical Basis Review (TBR) packages were prepared which include this information and, in addition, defined the enabling assumptions for each task, and the risks associated with performance. This process is discussed in Section 2.1. Detailed reviews at the subactivity within the Level 1 Logic TBR levels were conducted to provide the recommended solution to the Phase 1B Retrieval and Disposal Mission. Independent cost analysis and risk assessments were performed by members of the Lockheed Martin Hanford Corporation (LMHC) Business Management and Chief Financial Officer organization along with specialists in risk analysis from TRW, Inc. and Lockheed Martin Energy Systems. The process evaluated technical, schedule, and cost risk by category (program specific fixed and variable, integrated program, and programmatic) based on risk certainly from high probability well defined to very low probability that is not bounded or priceable as discussed in Section 2.2. The results have been modeled using a Monte Carlo type simulation and are included in Section 4.0 Analysis. The modeling was focused on low-activity waste (LAW) and high-level waste (HLW) feed delivery, infrastructure, and immobilized waste storage and disposal, and compiled at the total Phase 1B Retrieval and Disposal program. An independent review appraisal of technical plans and processes was also conducted utilizing experienced senior personnel both active and retired from Fluor Daniel Hanford, Inc. (FDH), (LHMC), U.S. Department of Energy (DOE), and previous Hanford contractors. The results were merged with the output from other evaluations to form HNF-1945, Tank Waste Remediation System Retrieval and Disposal Mission Key Enabling Assumptions.

  3. SAFETY ANALYSIS AND INTEGRATION FOR ROBOTIC SYSTEMS -APPLICATION TO A

    E-Print Network [OSTI]

    Guiochet, Jérémie

    Analysis (FMEA) and Fault Tree Analysis (FTA) which identify potential unit errors resulting in hazards

  4. RIVIER COLLEGE Spring 2006 BUS341A Information Systems Analysis Dr. Vladimir Riabov

    E-Print Network [OSTI]

    Riabov, Vladimir V.

    . A continuing case study that spans all phases of the system development life cycle (SDLC) is used to promote development life cycle (SDLC): Systems Planning; Systems Analysis; System Design; System Implementation the importance of communications, economic analysis, and project planning skills across all phases of the SDLC

  5. Applying an intelligent and automated emissions measurement system to characterize the RF environment for supporting wireless technologies

    SciTech Connect (OSTI)

    Keebler, P. F.; Phipps, K. O. [EPRI Solutions, 942 Corridor Park Blvd, Knoxville, TN 37932 (United States)

    2006-07-01T23:59:59.000Z

    The use of wireless technologies in commercial and industrial facilities has grown significantly in the past several years. New applications of wireless technologies with increasing frequency and varying radiated power are being developed everyday. Wireless application specialists and end users have already identified several sources of electromagnetic interference (EMI) in these facilities. Interference has been reported between wireless devices and between these devices and other types of electronic equipment either using frequencies in the unlicensed wireless spectrum or equipment that may generate undesired man-made noise in this spectrum. Facilities that are not using the wireless band should verify the spectral quality of that band and the electromagnetic compatibility (EMC) integrity of safety-related power and signal cables before installing wireless technologies. With the introduction of new wireless devices in the same electromagnetic space where analog and digital I and C systems and cables must co-exist, the ability of facility managers to manage their spectra will dictate the degree of interference between wireless devices and other electronic equipment. Because of the unknowns associated with interference with analog and digital I and C systems in the wireless band, nuclear power plants have been slow to introduce wireless technologies in plant areas. With the application of newly developed advanced radiated emissions measurement systems that can record, process, and analyze radiated and conducted emissions in a cost-effective manner, facility managers can more reliably characterize potential locations for wireless technologies, including potential coupling effects with safety-related power and signal cables, with increased confidence that the risks associated with creating an interference can be significantly reduced. This paper will present an effective philosophy already being used in other mission-critical applications for managing EMC, an overview of wireless emissions sources, the need for EMC characterization of power and signal cables with exposure to wireless devices, and an intelligent and automated emissions measurement system. Such a system can be used in nuclear power plants to determine the spectral quality of the wireless band, the EMC characterization of power and signal cables, and if wireless technologies can be collocated in plants while reducing the risk of interference with I and C systems. (authors)

  6. System Modeling, Analysis, and Optimization Methodology for Diesel Exhaust After-treatment Technologies

    E-Print Network [OSTI]

    de Weck, Olivier L.

    System Modeling, Analysis, and Optimization Methodology for Diesel Exhaust After;System Modeling, Analysis, and Optimization Methodology for Diesel Exhaust After-treatment Technologies Developing new aftertreatment technologies to meet emission regulations for diesel engines is a growing

  7. Fuel-Cycle Analysis of Hydrogen-Powered Fuel-Cell Systems with...

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

    Fuel-Cycle Analysis of Hydrogen-Powered Fuel-Cell Systems with the GREET Model Fuel-Cycle Analysis of Hydrogen-Powered Fuel-Cell Systems with the GREET Model This presentation by...

  8. Global Systems-Level Analysis of Hfq and SmpB Deletion Mutants...

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

    Systems-Level Analysis of Hfq and SmpB Deletion Mutants in Salmonella: Implications for Virulence and Global Protein Global Systems-Level Analysis of Hfq and SmpB Deletion Mutants...

  9. Final Report on Utilization of TRU TRISO Fuel as Applied to HTR Systems Part I: Pebble Bed Reactors

    SciTech Connect (OSTI)

    Brian Boer; Abderrafi M. Ougouag

    2011-03-01T23:59:59.000Z

    The Deep-Burn (DB) concept [ ] focuses on the destruction of transuranic nuclides from used light water reactor (LWR) fuel. These transuranic nuclides are incorporated into tri-isotopic (TRISO) coated fuel particles and used in gas-cooled reactors with the aim of a fractional fuel burnup of 60 to 70% in fissions per initial metal atom (FIMA). This high performance is expected through the use of multiple recirculation passes of the fuel in pebble form without any physical or chemical changes between passes. In particular, the concept does not call for reprocessing of the fuel between passes. In principle, the DB pebble bed concept employs the same reactor designs as the presently envisioned low-enriched uranium core designs, such as the 400 MWth Pebble Bed Modular Reactor (PBMR-400) [ ]. Although it has been shown in the previous Fiscal Year (FY) (2009) that a PuO2 fueled pebble bed reactor concept is viable, achieving a high fuel burnup while remaining within safety-imposed prescribed operational limits for fuel temperature, power peaking, and temperature reactivity feedback coefficients for the entire temperature range, is challenging. The presence of the isotopes 239Pu, 240Pu, and 241Pu that have resonances in the thermal energy range significantly modifies the neutron thermal energy spectrum as compared to a standard, UO2-fueled core. Therefore, the DB pebble bed core exhibits a relatively hard neutron energy spectrum. However, regions within the pebble bed that are near the graphite reflectors experience a locally softer spectrum. This can lead to power and temperature peaking in these regions. Furthermore, a shift of the thermal energy spectrum with increasing temperature can lead to increased absorption in the resonances of the fissile Pu isotopes. This can lead to a positive temperature reactivity coefficient for the graphite moderator under certain operating conditions. Regarding the coated particle performance, the FY 2009 investigations showed that no significant failure is to be expected for the reference fuel particle during normal operation. It was found, however, that the sensitivity of the coating stress to the CO production in the kernel was large. The CO production is expected to be higher in DB fuel than in UO2 fuel, but its exact level has a high uncertainty. Furthermore, in the fuel performance analysis transient conditions were not yet taken into account. The effort of this task in FY 2010 has focused on the optimization of the core to maximize the pebble discharge burnup level, while retaining its inherent safety characteristics. Using generic pebble bed reactor cores, this task will perform physics calculations to evaluate the capabilities of the pebble bed reactor to perform utilization and destruction of LWR used-fuel transuranics. The task will use established benchmarked models, and will introduce modeling advancements appropriate to the nature of the fuel considered (high transuranic [TRU] content and high burn-up). Accomplishments of this work include: •Core analysis of a HTR-MODULE design loaded with Deep-Burn fuel. •Core analysis of a HTR-MODULE design loaded with Deep-Burn fuel and Uranium. •Core analysis of a HTR-MODULE design loaded with Deep-Burn fuel and Modified Open Cycle Components. •Core analysis of a HTR-MODULE design loaded with Deep-Burn fuel and Americium targets.

  10. A shoe-integrated sensor system for wireless gait analysis and real-time therapeutic feedback

    E-Print Network [OSTI]

    Morris, Stacy J., 1974-

    2004-01-01T23:59:59.000Z

    Clinical gait analysis currently involves either an expensive analysis in a motion laboratory, using highly accurate, if cumbersome, kinematic systems, or a qualitative analysis with a physician or physical therapist making ...

  11. Challenges in the Modeling and Quantitative Analysis of Safety-Critical Automotive Systems!

    E-Print Network [OSTI]

    Leue, Stefan

    ! Probabilistic FMEA! Probabilistic Analysis of System Architectures! ! Conclusion! 3! #12;ISO 26262: Road! ,,identify Failures"! - Qualitative FMEA! ! - Qualitative Fault Tree Analysis! ! - Event Tree Analysis! Quantitative Methods! ,,predict frequency of failures"! - Quantitative FMEA! ! - Quantitative Fault Tree

  12. Multipath Reflections Analysis on Indoor Visible Light Positioning System

    E-Print Network [OSTI]

    Gu, Wenjun; Kavehrad, Mohsen

    2015-01-01T23:59:59.000Z

    Visible light communication (VLC) has become a promising research topic in recent years, and finds its wide applications in indoor environments. Particularly, for location based services (LBS), visible light also provides a practical solution for indoor positioning. Multipath-induced dispersion is one of the major concerns for complex indoor environments. It affects not only the communication performance but also the positioning accuracy. In this paper, we investigate the impact of multipath reflections on the positioning accuracy of indoor VLC positioning systems. Combined Deterministic and Modified Monte Carlo (CDMMC) approach is applied to estimate the channel impulse response considering multipath reflections. Since the received signal strength (RSS) information is used for the positioning algorithm, the power distribution from one transmitter in a typical room configuration is first calculated. Then, the positioning accuracy in terms of root mean square error is obtained and analyzed.

  13. Enhanced Accident Tolerant Fuels for LWRS - A Preliminary Systems Analysis

    SciTech Connect (OSTI)

    Gilles Youinou; R. Sonat Sen

    2013-09-01T23:59:59.000Z

    The severe accident at Fukushima Daiichi nuclear plants illustrates the need for continuous improvements through developing and implementing technologies that contribute to safe, reliable and cost-effective operation of the nuclear fleet. Development of enhanced accident tolerant fuel contributes to this effort. These fuels, in comparison with the standard zircaloy – UO2 system currently used by the LWR industry, should be designed such that they tolerate loss of active cooling in the core for a longer time period (depending on the LWR system and accident scenario) while maintaining or improving the fuel performance during normal operations, operational transients, and design-basis events. This report presents a preliminary systems analysis related to most of these concepts. The potential impacts of these innovative LWR fuels on the front-end of the fuel cycle, on the reactor operation and on the back-end of the fuel cycle are succinctly described without having the pretension of being exhaustive. Since the design of these various concepts is still a work in progress, this analysis can only be preliminary and could be updated as the designs converge on their respective final version.

  14. System diagnostics using qualitative analysis and component functional classification

    DOE Patents [OSTI]

    Reifman, Jaques (Lisle, IL); Wei, Thomas Y. C. (Downers Grove, IL)

    1993-01-01T23:59:59.000Z

    A method for detecting and identifying faulty component candidates during off-normal operations of nuclear power plants involves the qualitative analysis of macroscopic imbalances in the conservation equations of mass, energy and momentum in thermal-hydraulic control volumes associated with one or more plant components and the functional classification of components. The qualitative analysis of mass and energy is performed through the associated equations of state, while imbalances in momentum are obtained by tracking mass flow rates which are incorporated into a first knowledge base. The plant components are functionally classified, according to their type, as sources or sinks of mass, energy and momentum, depending upon which of the three balance equations is most strongly affected by a faulty component which is incorporated into a second knowledge base. Information describing the connections among the components of the system forms a third knowledge base. The method is particularly adapted for use in a diagnostic expert system to detect and identify faulty component candidates in the presence of component failures and is not limited to use in a nuclear power plant, but may be used with virtually any type of thermal-hydraulic operating system.

  15. System diagnostics using qualitative analysis and component functional classification

    DOE Patents [OSTI]

    Reifman, J.; Wei, T.Y.C.

    1993-11-23T23:59:59.000Z

    A method for detecting and identifying faulty component candidates during off-normal operations of nuclear power plants involves the qualitative analysis of macroscopic imbalances in the conservation equations of mass, energy and momentum in thermal-hydraulic control volumes associated with one or more plant components and the functional classification of components. The qualitative analysis of mass and energy is performed through the associated equations of state, while imbalances in momentum are obtained by tracking mass flow rates which are incorporated into a first knowledge base. The plant components are functionally classified, according to their type, as sources or sinks of mass, energy and momentum, depending upon which of the three balance equations is most strongly affected by a faulty component which is incorporated into a second knowledge base. Information describing the connections among the components of the system forms a third knowledge base. The method is particularly adapted for use in a diagnostic expert system to detect and identify faulty component candidates in the presence of component failures and is not limited to use in a nuclear power plant, but may be used with virtually any type of thermal-hydraulic operating system. 5 figures.

  16. Integrated analysis of nuclear thermal rocket system performance

    SciTech Connect (OSTI)

    Buksa, J.J.; Rider, W.J.; Hall, M.; Perry, R.T.; Houts, M. (Los Alamos National Lab., NM (United States))

    1992-01-01T23:59:59.000Z

    As part of the Space Exploration Initiative (SEI), nuclear thermal rocket (NTR) engines will play a key transportation role. Although a number of tests of prismatic, solid-core nuclear engines were completed during the ROVER/NERVA program, the estimated cost of completing full-engine tests will severely limit the scope, duration, and number of any such tests in the future. Design optimization by test iteration is unlikely, and an emphasis on computational modeling is a cost-effective alternative. As a consequence of our responsibilities within the US Dept. of Energy's SEI efforts to develop key NTR technologies, Los Alamos National Laboratory (LANL) is developing the capability to design and verify the safety and performance of NTR systems. Because of the important role that computational modeling will play in the faster, better, and cheaper development of an NTR system, we are pursuing two paths of analysis. The first undertaking is the development of accurate separate-effects codes for design and analysis. Included in this category are thermal-hydraulic and radiation-transport codes. Our other endeavor, which is the focus of this paper, is to develop an advanced computational architecture that can be used to model the entire NTR system.

  17. Systems-Level Analysis & Bioenergy Market Assessment

    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 DataDepartment of Energy Your Density Isn'tOriginEducationVideoStrategic SafetyGeothermal/Ground-Sourcepnnl.govSystems-Level Analysis &

  18. MODELING AND ANALYSIS OF THE DYNAMICS OF DRY-FRICTION-DAMPED STRUCTURAL SYSTEMS

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    MODELING AND ANALYSIS OF THE DYNAMICS OF DRY-FRICTION-DAMPED STRUCTURAL SYSTEMS by Olivier J . . . . . . . . . . . . . . . . . . . . . . . . . . 6 1.2.1 Nonlinear methods for the analysis of friction-damped systems . . . . . . . . . . . . . . . . . . . . . . . . 15 II. HYBRID FREQUENCY-TIME DOMAIN METHODS FOR THE ANALYSIS OF COMPLEX STRUCTURAL SYSTEMS WITH DRY

  19. Ris-R-Report Energy Systems Analysis of Waste to Energy

    E-Print Network [OSTI]

    Risø-R-Report Energy Systems Analysis of Waste to Energy Technologies by use of EnergyPLAN Marie Münster Risø-R-1667(EN) April 2009 #12;Author: Marie Münster Title: Energy Systems Analysis of Waste to Energy Technologies by use of EnergyPLAN Division: Systems Analysis Division Risø-R-1667(EN) April 2009

  20. Ris DTU 09-06-08 Energy Technology Systems Analysis Programme (ETSAP)

    E-Print Network [OSTI]

    Risø DTU 09-06-08 1 Energy Technology Systems Analysis Programme (ETSAP) Harmoniserede nationale internalisation strategies, including scenario building ETSAP - The Energy Technology Systems Analysis Programme analysis of the European energy system. It has been refined and tested since the beginning of the project

  1. Sediment Budget Analysis System (SBAS) for ArcGIS 10 -User's Guide Page 1 of 49

    E-Print Network [OSTI]

    US Army Corps of Engineers

    Sediment Budget Analysis System (SBAS) for ArcGIS 10 - User's Guide Page 1 of 49 CESAM-OPJ-GIS Document current as of March 28, 2012 10:27 AM Sediment Budget Analysis System (SBAS) for ArcGIS 10 User's Guide D R AFT #12;Sediment Budget Analysis System (SBAS) for ArcGIS 10 - User's Guide Page 2 of 49 CESAM

  2. Sediment Budget Analysis System (SBAS) for ArcGIS 10 -User's Guide Page 1 of 50

    E-Print Network [OSTI]

    US Army Corps of Engineers

    Sediment Budget Analysis System (SBAS) for ArcGIS 10 - User's Guide Page 1 of 50 CESAM-OPJ-GIS Document current as of June 27, 2012 10:09 AM Sediment Budget Analysis System (SBAS) for ArcGIS 10 User's Guide D R AFT #12;Sediment Budget Analysis System (SBAS) for ArcGIS 10 - User's Guide Page 2 of 50 CESAM

  3. Data analysis using the Gnu R system for statistical computation

    SciTech Connect (OSTI)

    Simone, James; /Fermilab

    2011-07-01T23:59:59.000Z

    R is a language system for statistical computation. It is widely used in statistics, bioinformatics, machine learning, data mining, quantitative finance, and the analysis of clinical drug trials. Among the advantages of R are: it has become the standard language for developing statistical techniques, it is being actively developed by a large and growing global user community, it is open source software, it is highly portable (Linux, OS-X and Windows), it has a built-in documentation system, it produces high quality graphics and it is easily extensible with over four thousand extension library packages available covering statistics and applications. This report gives a very brief introduction to R with some examples using lattice QCD simulation results. It then discusses the development of R packages designed for chi-square minimization fits for lattice n-pt correlation functions.

  4. Thermal analysis of directly buried conduit heat-distribution systems

    SciTech Connect (OSTI)

    Fang, J.B.

    1990-08-01T23:59:59.000Z

    The calculations of heat losses and temperature field for directly buried conduit heat distribution systems were performed using the finite element computer programs. The finite element analysis solved two-dimensional, steady-state heat transfer problems involving two insulated parallel pipes encased in the same conduit casing and in separate casings, and the surrounding earth. Descriptions of the theoretical basis, computational scheme, and the data input and outputs of the developed computer programs are presented. Numerical calculations were carried out for predicting the temperature distributions within the existing high temperature hot water distribution system and two insulated pipes covered in the same metallic conduit and the surrounding soil. The predicted results generally agree with the experimental data obtained at the test site.

  5. A Coincidence Signature Library for Multicoincidence Radionuclide Analysis Systems

    SciTech Connect (OSTI)

    Smith, Leon E.; Ellis, J E.; Valsan, Andrei B.; Aalseth, Craig E.; Miley, Harry S.

    2003-10-01T23:59:59.000Z

    Pacific Northwest National Laboratory (PNNL) is currently developing multicoincidence systems to perform trace radionuclide analysis at or near the sample collection point, for applications that include emergency response, nuclear forensics, and environmental monitoring. Quantifying radionuclide concentrations with these systems requires a library of accurate emission intensities for each detected signature, for all candidate radionuclides. To meet this need, a Coincidence Lookup Library (CLL) is being developed to calculate the emission intensities of coincident signatures from a user-specified radionuclide, or conversely, to determine the radionuclides that may be responsible for a specific detected coincident signature. The algorithms used to generate absolute emission intensities and various query modes for our developmental CLL are described.

  6. Shielding analysis of the NAC-MPC storage system

    SciTech Connect (OSTI)

    Napolitano, D.G.; Romano, N.J. [NAC International, Norcross, GA (United States); Hertel, N.E. [Georgia Institute of Technology, Atlanta, GA (United States)] [and others

    1997-12-01T23:59:59.000Z

    This paper presents the shielding analyses of the NAC-MPC dry cask storage system. The NAC-MPC dry cask storage system consists of a transportable storage canister, a transfer cask, and a vertical concrete storage cask. The NAC-MPC is designed to accommodate 36 {open_quotes}Yankee Class{close_quotes} fuel assemblies with a maximum burnup of 36,000 MWd/tonne U burnup and 8 yr cooling time. The shielding analysis is performed with the SCALE 4.3 code package which includes SAS2H for source term generation and SAS4A, a modification of SAS4, for shielding evaluations. SAS4 utilizes a one-dimensional XSDRNPM adjoint calculation of the cask to generate biasing parameters for a three-dimensional MORSE-SGC Monte Carlo model of the cask geometry.

  7. Life-cycle analysis results of geothermal systems in comparison to other power systems.

    SciTech Connect (OSTI)

    Sullivan, J. L.; Clark, C. E.; Han, J.; Wang, M.; Energy Systems

    2010-10-11T23:59:59.000Z

    A life-cycle energy and greenhouse gas emissions analysis has been conducted with Argonne National Laboratory's expanded Greenhouse Gases, Regulated Emissions, and Energy Use in Transportation (GREET) model for geothermal power-generating technologies, including enhanced geothermal, hydrothermal flash, and hydrothermal binary technologies. As a basis of comparison, a similar analysis has been conducted for other power-generating systems, including coal, natural gas combined cycle, nuclear, hydroelectric, wind, photovoltaic, and biomass by expanding the GREET model to include power plant construction for these latter systems with literature data. In this way, the GREET model has been expanded to include plant construction, as well as the usual fuel production and consumption stages of power plant life cycles. For the plant construction phase, on a per-megawatt (MW) output basis, conventional power plants in general are found to require less steel and concrete than renewable power systems. With the exception of the concrete requirements for gravity dam hydroelectric, enhanced geothermal and hydrothermal binary used more of these materials per MW than other renewable power-generation systems. Energy and greenhouse gas (GHG) ratios for the infrastructure and other life-cycle stages have also been developed in this study per kilowatt-hour (kWh) of electricity output by taking into account both plant capacity and plant lifetime. Generally, energy burdens per energy output associated with plant infrastructure are higher for renewable systems than conventional ones. GHG emissions per kWh of electricity output for plant construction follow a similar trend. Although some of the renewable systems have GHG emissions during plant operation, they are much smaller than those emitted by fossil fuel thermoelectric systems. Binary geothermal systems have virtually insignificant GHG emissions compared to fossil systems. Taking into account plant construction and operation, the GREET model shows that fossil thermal plants have fossil energy use and GHG emissions per kWh of electricity output about one order of magnitude higher than renewable power systems, including geothermal power.

  8. Parallel and Statistical Analysis and Modeling of Nanometer VLSI Systems

    E-Print Network [OSTI]

    Liu, Xue-Xin

    2013-01-01T23:59:59.000Z

    for reduced order analysis of linear circuit with multipleWorst case analysis of linear analog circuit performancelinear analog circuits under parameter variations by robust interval analysis.

  9. Dairy Analytics and Nutrient Analysis (DANA) Prototype System User Manual

    SciTech Connect (OSTI)

    Sam Alessi; Dennis Keiser

    2012-10-01T23:59:59.000Z

    This document is a user manual for the Dairy Analytics and Nutrient Analysis (DANA) model. DANA provides an analysis of dairy anaerobic digestion technology and allows users to calculate biogas production, co-product valuation, capital costs, expenses, revenue and financial metrics, for user customizable scenarios, dairy and digester types. The model provides results for three anaerobic digester types; Covered Lagoons, Modified Plug Flow, and Complete Mix, and three main energy production technologies; electricity generation, renewable natural gas generation, and compressed natural gas generation. Additional options include different dairy types, bedding types, backend treatment type as well as numerous production, and economic parameters. DANA’s goal is to extend the National Market Value of Anaerobic Digester Products analysis (informa economics, 2012; Innovation Center, 2011) to include a greater and more flexible set of regional digester scenarios and to provide a modular framework for creation of a tool to support farmer and investor needs. Users can set up scenarios from combinations of existing parameters or add new parameters, run the model and view a variety of reports, charts and tables that are automatically produced and delivered over the web interface. DANA is based in the INL’s analysis architecture entitled Generalized Environment for Modeling Systems (GEMS) , which offers extensive collaboration, analysis, and integration opportunities and greatly speeds the ability construct highly scalable web delivered user-oriented decision tools. DANA’s approach uses server-based data processing and web-based user interfaces, rather a client-based spreadsheet approach. This offers a number of benefits over the client-based approach. Server processing and storage can scale up to handle a very large number of scenarios, so that analysis of county, even field level, across the whole U.S., can be performed. Server based databases allow dairy and digester parameters be held and managed in a single managed data repository, while allows users to customize standard values and perform individual analysis. Server-based calculations can be easily extended, versions and upgrades managed, and any changes are immediately available to all users. This user manual describes how to use and/or modify input database tables, run DANA, view and modify reports.

  10. An Analysis of Anonymity in the Bitcoin System

    E-Print Network [OSTI]

    Reid, Fergal

    2011-01-01T23:59:59.000Z

    Anonymity in Bitcoin, a peer-to-peer electronic currency system, is a complicated issue. Within the system, users are identified by public-keys only. An attacker wishing to de-anonymize its users will attempt to construct the oneto- many mapping between users and public-keys and associate information external to the system with the users. Bitcoin frustrates this attack by storing the mapping of a user to his or her public-keys on that user's node only and by allowing each user to generate as many public-keys as required. In this paper we consider the topological structure of two networks derived from Bitcoin's public transaction history. We show that the two networks have a non-trivial topological structure, provide complementary views of the Bitcoin system and have implications for anonymity. We combine these structures with external information and techniques such as context discovery and flow analysis to investigate an alleged theft of Bitcoins, which, at the time of the theft, had a market value of approx...

  11. Analysis of LNG import terminal release prevention systems

    SciTech Connect (OSTI)

    Baker, E G

    1982-04-01T23:59:59.000Z

    The release prevention systems of liquefied natural gas (LNG) import terminal were analyzed. A series of potential release scenarios were analyzed to determine the frequency of the release events, the probability these releases are not stopped or isolated by emergency shutdown systems, the estimated release quantities, and the critical components of the system. The two plant areas identified as being most significant with respect to safety are the unloading system and the storage system. Rupture of the main transfer line and gross failure of the storage tanks are the two release scenarios of primary safety interest. Reducing the rate of failure by improved design, better maintenance and testing, or adding redundancy of the critical system components for these plant areas and release scenarios will result in improved safety. Several design alternatives which have the potential to significantly reduce the probability of a large release of LNG occurring at an import terminal are identified. These design alternatives would reduce the probability of a large release of LNG by reducing the expected number of failures which could cause a release or by reducing the magnitude of releases that do occur. All of these alternatives are technically feasible and have been used or considered for use in at least one LNG facility. A more rigorous analysis of the absolute risk of LNG import terminal operation is necessary before the benefits of these design alternatives can be determined. In addition, an economic evaluation of these alternatives must be made so the costs and benefits can be compared. It is concludd that for remotely located facilities many of these alternatives are probably not justified; however, for facilities located in highly populated areas, these alternatives deserve serious consideration.

  12. Power Systems Life Cycle Analysis Tool (Power L-CAT).

    SciTech Connect (OSTI)

    Andruski, Joel; Drennen, Thomas E.

    2011-01-01T23:59:59.000Z

    The Power Systems L-CAT is a high-level dynamic model that calculates levelized production costs and tracks environmental performance for a range of electricity generation technologies: natural gas combined cycle (using either imported (LNGCC) or domestic natural gas (NGCC)), integrated gasification combined cycle (IGCC), supercritical pulverized coal (SCPC), existing pulverized coal (EXPC), nuclear, and wind. All of the fossil fuel technologies also include an option for including carbon capture and sequestration technologies (CCS). The model allows for quick sensitivity analysis on key technical and financial assumptions, such as: capital, O&M, and fuel costs; interest rates; construction time; heat rates; taxes; depreciation; and capacity factors. The fossil fuel options are based on detailed life cycle analysis reports conducted by the National Energy Technology Laboratory (NETL). For each of these technologies, NETL's detailed LCAs include consideration of five stages associated with energy production: raw material acquisition (RMA), raw material transport (RMT), energy conversion facility (ECF), product transportation and distribution (PT&D), and end user electricity consumption. The goal of the NETL studies is to compare existing and future fossil fuel technology options using a cradle-to-grave analysis. The NETL reports consider constant dollar levelized cost of delivered electricity, total plant costs, greenhouse gas emissions, criteria air pollutants, mercury (Hg) and ammonia (NH3) emissions, water withdrawal and consumption, and land use (acreage).

  13. A graph-based network-vulnerability analysis system

    SciTech Connect (OSTI)

    Swiler, L.P.; Phillips, C.; Gaylor, T.

    1998-05-03T23:59:59.000Z

    This paper presents a graph based approach to network vulnerability analysis. The method is flexible, allowing analysis of attacks from both outside and inside the network. It can analyze risks to a specific network asset, or examine the universe of possible consequences following a successful attack. The analysis system requires as input a database of common attacks, broken into atomic steps, specific network configuration and topology information, and an attacker profile. The attack information is matched with the network configuration information and an attacker profile to create a superset attack graph. Nodes identify a stage of attack, for example the class of machines the attacker has accessed and the user privilege level he or she has compromised. The arcs in the attack graph represent attacks or stages of attacks. By assigning probabilities of success on the arcs or costs representing level of effort for the attacker, various graph algorithms such as shortest path algorithms can identify the attack paths with the highest probability of success.

  14. A graph-based network-vulnerability analysis system

    SciTech Connect (OSTI)

    Swiler, L.P.; Phillips, C. [Sandia National Labs., Albuquerque, NM (United States); Gaylor, T. [3M, Austin, TX (United States). Visual Systems Div.

    1998-01-01T23:59:59.000Z

    This report presents a graph-based approach to network vulnerability analysis. The method is flexible, allowing analysis of attacks from both outside and inside the network. It can analyze risks to a specific network asset, or examine the universe of possible consequences following a successful attack. The analysis system requires as input a database of common attacks, broken into atomic steps, specific network configuration and topology information, and an attacker profile. The attack information is matched with the network configuration information and an attacker profile to create a superset attack graph. Nodes identify a stage of attack, for example the class of machines the attacker has accessed and the user privilege level he or she has compromised. The arcs in the attack graph represent attacks or stages of attacks. By assigning probabilities of success on the arcs or costs representing level-of-effort for the attacker, various graph algorithms such as shortest-path algorithms can identify the attack paths with the highest probability of success.

  15. Understanding resonant tunnel transport in non-identical and non-aligned clusters as applied to disordered carbon systems

    SciTech Connect (OSTI)

    Bhattacharyya, Somnath, E-mail: Somnath.Bhattacharyya@wits.ac.za [Nano-Scale Transport Physics Laboratory, School of Physics, University of the Witwatersrand, Private Bag 3, WITS 2050 Johannesburg (South Africa); School of Physics and Astronomy, University of Leeds, E C Stoner Laboratory, Leeds LS2 9JT (United Kingdom); Churochkin, Dmitry [Nano-Scale Transport Physics Laboratory, School of Physics, University of the Witwatersrand, Private Bag 3, WITS 2050 Johannesburg (South Africa)

    2014-10-21T23:59:59.000Z

    We study the conductance spectra and the corresponding current-voltage characteristics of a set of three impurity clusters of different sizes arranged in the form of a scalene triangle and compare with the transport of their horizontal and vertical configurations. The tuning capability of resonant tunnelling features in a quantum dot device made of these non-aligned impurity clusters is demonstrated by re-distributing their diameters and inter-cluster distances in a systematic manner. By manipulating the inter-cluster coupling for a scalene triangular configuration, the transition of current-voltage curves from a step-like feature to a negative differential resistance can be produced. This process also yields conductance features for triangular configurations, which can be compared to the quantum dot structures perfectly aligned to the direction of the propagating wavevector. The strength of inter-cluster coupling or order parameter for these configurations is analysed from the relative variation of the width and the energy difference of the sharp and broad peaks observed in the density of states spectra. Based on the relative change of the inter-cluster coupling with the cluster configurations, a transport model applicable to structurally inhomogeneous systems is proposed in order to explain the experimentally observed variation of the energy band gap with the disorder parameters.

  16. Advisor 2.0: A Second-Generation Advanced Vehicle Simulator for Systems Analysis

    SciTech Connect (OSTI)

    Wipke, K.; Cuddy, M.; Bharathan, D.; Burch, S.; Johnson, V.; Markel, A.; Sprik, S.

    1999-03-23T23:59:59.000Z

    The National Renewable Energy Laboratory has recently publicly released its second-generation advanced vehicle simulator called ADVISOR 2.0. This software program was initially developed four years ago, and after several years of in-house usage and evolution, the tool is now available to the public through a new vehicle systems analysis World Wide Web page. ADVISOR has been applied to many different systems analysis problems, such as helping to develop the SAE J1711 test procedure for hybrid vehicles and helping to evaluate new technologies as part of the Partnership for a New Generation of Vehicles (PNGV) technology selection process. The model has been and will continue to be benchmarked and validated with other models and with real vehicle test data. After two months of being available on the Web, more than 100 users have downloaded ADVISOR. ADVISOR 2.0 has many new features, including an easy-to-use graphical user interface, a detailed exhaust aftertreatment thermal model, and complete browser-based documentation. Future work will include adding to the library of components available in ADVISOR, including optimization functionality, and linking with a more detailed fuel cell model.

  17. Environmental Cost Analysis System (ECAS) Status and Compliance Requirements for EM Consolidated Business Center Contracts - 13204

    SciTech Connect (OSTI)

    Sanford, P.C. [Consultant, 11221 E. Cimmarron Dr., Englewood, CO 80111 (United States)] [Consultant, 11221 E. Cimmarron Dr., Englewood, CO 80111 (United States); Moe, M.A. [EMCBC Office of Cost Estimating and Analysis, United States Department of Energy, 250 E. 5th Street, Suite 500, Cincinnati, OH 45202 (United States)] [EMCBC Office of Cost Estimating and Analysis, United States Department of Energy, 250 E. 5th Street, Suite 500, Cincinnati, OH 45202 (United States); Hombach, W.G. [Team Analysis, Inc., 2 Cardinal Park Drive, Suite 105A, Leesburg, VA 20175 (United States)] [Team Analysis, Inc., 2 Cardinal Park Drive, Suite 105A, Leesburg, VA 20175 (United States); Urdangaray, R. [Project Performance Corporation, 1760 Old Meadow Road, McLean, VA 22102 (United States)] [Project Performance Corporation, 1760 Old Meadow Road, McLean, VA 22102 (United States)

    2013-07-01T23:59:59.000Z

    The Department of Energy (DOE) Office of Environmental Management (EM) has developed a web-accessible database to collect actual cost data from completed EM projects to support cost estimating and analysis. This Environmental Cost Analysis System (ECAS) database was initially deployed in early 2009 containing the cost and parametric data from 77 decommissioning, restoration, and waste management projects completed under the Rocky Flats Closure Project. In subsequent years we have added many more projects to ECAS and now have a total of 280 projects from 8 major DOE sites. This data is now accessible to DOE users through a web-based reporting tool that allows users to tailor report outputs to meet their specific needs. We are using it as a principal resource supporting the EM Consolidated Business Center (EMCBC) and the EM Applied Cost Engineering (ACE) team cost estimating and analysis efforts across the country. The database has received Government Accountability Office review as supporting its recommended improvements in DOE's cost estimating process, as well as review from the DOE Office of Acquisition and Project Management (APM). Moving forward, the EMCBC has developed a Special Contract Requirement clause or 'H-Clause' to be included in all current and future EMCBC procurements identifying the process that contractors will follow to provide DOE their historical project data in a format compatible with ECAS. Changes to DOE O 413.3B implementation are also in progress to capture historical costs as part of the Critical Decision project closeout process. (authors)

  18. Networked alpha and gamma spectral acquisition and analysis system

    SciTech Connect (OSTI)

    Wilcox, C.M.; Gross, J.M.

    1993-10-01T23:59:59.000Z

    This manual assumes a knowledge of (terminology used and a working familiarity with) the windowing system and mouse of the Sun computer workstation. See the appropriate Sun manuals for additional information. ALDO, the alpha detector control program, is used to control, monitor, and edit log information associated with the collection of alpha spectra. Actual data collection and control functions are performed by Mizar Real-Time computers for which ALDO acts as a friendly user command interface and status display. It is normally started as part of your login procedure, but may also be started from the ``NETSPEC Utilities`` submenu of the root menu. The root menu is obtained by pushing the right mouse button when the cursor is over the root window (background picture). To become a user of ALDO and the other programs in the NETSPEC system, contact the person who performs systems administration tasks for the Sun computers. Most user interaction with ALDO is by means of mouse manipulation of screen items such as buttons, checkboxes, and sliders. The action of pushing the left mouse button when the cursor is over an item is called selecting that item. The left mouse button is therefore called the select button. The right mouse button is the menu button because a limited number of options may be displayed when that button is pressed when the cursor is over an item with a triangle (inverted delta). In this document, names of selectable items are printed in bold when they are first mentioned or when emphasis is helpful. In general, items which do not apply to the current context are either disabled or made invisible in order to prevent selection.

  19. Safety Analysis of an Airbag System using Probabilistic FMEA and Probabilistic Counterexamples

    E-Print Network [OSTI]

    Leue, Stefan

    Safety Analysis of an Airbag System using Probabilistic FMEA and Probabilistic Counterexamples H analysis (FMEA) is a technique to reason about possible system hazards that result from system or system component failures. Tradition- ally, FMEA does not take the probabilities with which these failures may

  20. Safety Analysis of an Airbag System using Probabilistic FMEA and Probabilistic Counter Examples

    E-Print Network [OSTI]

    Leue, Stefan

    Safety Analysis of an Airbag System using Probabilistic FMEA and Probabilistic Counter Examples Failure mode and effects analysis (FMEA) is a technique to reason about possible system hazards that result from system or system component failures. Traditionally, FMEA does not take the probabilities

  1. IEEE TRANSACTIONS ON POWER SYSTEMS, VOL. 7, NO. 2, MAY 1992, PP. 673 683. POINT OF COLLAPSE METHODS APPLIED TO AC DC POWER SYSTEMS

    E-Print Network [OSTI]

    Cañizares, Claudio A.

    -node bifurcations in power systems including high voltage direct current HVDC transmission. Bus voltage pro les, become plausible when the dynamics for the HVDC system are included. Keywords: Voltage collapse, HVDC the subject of increasing study over the past few years 1 . Furthermore, the relative wide spread use of HVDC

  2. Data Management and Analysis for the Earth System Grid

    SciTech Connect (OSTI)

    Williams, D N; Ananthakrishnan, R; Bernholdt, D; Bharathi, S; Brown, D; Chen, M; Chervenak, A L; Cinquini, L; Drach, R; Foster, I T; Fox, P; Hankin, S; Henson, V; Jones, P; Middleton, D E; Schwidder, J; Schweitzer, R; Schuler, R; Shoshani, A; Siebenlist, F; Sim, A; Strand, W G; Wilhelmi, N; Su, M

    2008-06-19T23:59:59.000Z

    The international climate community is expected to generate hundreds of petabytes of simulation data within the next five to seven years. This data must be accessed and analyzed by thousands of analysts worldwide in order to provide accurate and timely estimates of the likely impact of climate change on physical, biological, and human systems. Climate change is thus not only a scientific challenge of the first order but also a major technological challenge. To address this technological challenge, the Earth System Grid Center for Enabling Technologies (ESG-CET) has been established within the U.S. Department of Energy's Scientific Discovery through Advanced Computing (SciDAC)-2 program, with support from the offices of Advanced Scientific Computing Research and Biological and Environmental Research. ESG-CET's mission is to provide climate researchers worldwide with access to the data, information, models, analysis tools, and computational capabilities required to make sense of enormous climate simulation datasets. Its specific goals are to (1) make data more useful to climate researchers by developing Grid technology that enhances data usability; (2) meet specific distributed database, data access, and data movement needs of national and international climate projects; (3) provide a universal and secure web-based data access portal for broad multi-model data collections; and (4) provide a wide-range of Grid-enabled climate data analysis tools and diagnostic methods to international climate centers and U.S. government agencies. Building on the successes of the previous Earth System Grid (ESG) project, which has enabled thousands of researchers to access tens of terabytes of data from a small number of ESG sites, ESG-CET is working to integrate a far larger number of distributed data providers, high-bandwidth wide-area networks, and remote computers in a highly collaborative problem-solving environment.

  3. A Mobile Motion Analysis System Using Intertial Sensors for Analysis of Lower Limb Prosthetics

    SciTech Connect (OSTI)

    Mueller, John Kyle P [ORNL] [ORNL; Ericson, Milton Nance [ORNL] [ORNL; Farquhar, Ethan [ORNL] [ORNL; Lind, Randall F [ORNL] [ORNL; Evans III, Boyd Mccutchen [ORNL] [ORNL

    2011-01-01T23:59:59.000Z

    Soldiers returning from the global war on terror requiring lower leg prosthetics generally have different concerns and requirements than the typical lower leg amputee. These subjects are usually young, wish to remain active and often desire to return to active military duty. As such, they demand higher performance from their prosthetics, but are at risk for chronic injury and joint conditions in their unaffected limb. Motion analysis is a valuable tool in assessing the performance of new and existing prosthetic technologies as well as the methods in fitting these devices to both maximize performance and minimize risk of injury for the individual soldier. We are developing a mobile, low-cost motion analysis system using inertial measurement units (IMUs) and two custom force sensors that detect ground reaction forces and moments on both the unaffected limb and prosthesis. IMUs were tested on a robot programmed to simulate human gait motion. An algorithm which uses a kinematic model of the robot and an extended Kalman filter (EKF) was used to convert the rates and accelerations from the gyro and accelerometer into joint angles. Compared to encoder data from the robot, which was considered the ground truth in this experiment, the inertial measurement system had a RMSE of <1.0 degree. Collecting kinematic and kinetic data without the restrictions and expense of a motion analysis lab could help researchers, designers and prosthetists advance prosthesis technology and customize devices for individuals. Ultimately, these improvements will result in better prosthetic performance for the military population.

  4. NGNP Data Management and Analysis System Analysis and Web Delivery Capabilities

    SciTech Connect (OSTI)

    Cynthia D. Gentillon

    2011-09-01T23:59:59.000Z

    Projects for the Very High Temperature Reactor (VHTR) Technology Development Office provide data in support of Nuclear Regulatory Commission licensing of the very high temperature reactor. Fuel and materials to be used in the reactor are tested and characterized to quantify performance in high-temperature and high-fluence environments. The NGNP Data Management and Analysis System (NDMAS) at the Idaho National Laboratory has been established to ensure that VHTR data are (1) qualified for use, (2) stored in a readily accessible electronic form, and (3) analyzed to extract useful results. This document focuses on the third NDMAS objective. It describes capabilities for displaying the data in meaningful ways and for data analysis to identify useful relationships among the measured quantities. The capabilities are described from the perspective of NDMAS users, starting with those who just view experimental data and analytical results on the INL NDMAS web portal. Web display and delivery capabilities are described in detail. Also the current web pages that show Advanced Gas Reactor, Advanced Graphite Capsule, and High Temperature Materials test results are itemized. Capabilities available to NDMAS developers are more extensive, and are described using a second series of examples. Much of the data analysis efforts focus on understanding how thermocouple measurements relate to simulated temperatures and other experimental parameters. Statistical control charts and correlation monitoring provide an ongoing assessment of instrument accuracy. Data analysis capabilities are virtually unlimited for those who use the NDMAS web data download capabilities and the analysis software of their choice. Overall, the NDMAS provides convenient data analysis and web delivery capabilities for studying a very large and rapidly increasing database of well-documented, pedigreed data.

  5. A system-of-systems framework of Nuclear Power Plant Probabilistic Seismic Hazard Analysis by Fault Tree analysis and Monte Carlo simulation

    E-Print Network [OSTI]

    Boyer, Edmond

    simulation. As outcome of the analysis, the probability that the nuclear power plant reaches an unsafe stateA system-of-systems framework of Nuclear Power Plant Probabilistic Seismic Hazard Analysis by Fault consider the impacts produced on a nuclear power plant (the critical plant) embedded in the connected power

  6. A Polynomial Chaos Approach to the Robust Analysis of the Dynamic Behaviour of Friction Systems

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    . Key word: Dry friction systems, Nonlinear dynamic systems, stability, limit cycle, robustness, uncertainty propagation, polynomial chaos, Lyapunov function, SOS programming. 1. Introduction Dry friction1 A Polynomial Chaos Approach to the Robust Analysis of the Dynamic Behaviour of Friction Systems

  7. Observational Analysis of the Predictability of Mesoscale Convective Systems ISRAEL L. JIRAK AND WILLIAM R. COTTON

    E-Print Network [OSTI]

    Observational Analysis of the Predictability of Mesoscale Convective Systems ISRAEL L. JIRAK (Manuscript received 30 December 2005, in final form 4 October 2006) ABSTRACT Mesoscale convective systems of usefulness in operational forecasting. 1. Introduction Mesoscale convective systems (MCSs) frequently de

  8. NGNP Data Management and Analysis System Analysis and Web Delivery Capabilities

    SciTech Connect (OSTI)

    Cynthia D. Gentillon

    2010-09-01T23:59:59.000Z

    Projects for the Very High Temperature Reactor Technology Development Office provide data in support of Nuclear Regulatory Commission licensing of the very high temperature reactor. Fuel and materials to be used in the reactor are tested and characterized to quantify performance in high-temperature and high-fluence environments. In addition, thermal-hydraulic experiments are conducted to validate codes used to assess reactor safety. The Very High Temperature Reactor Technology Development Office has established the NGNP Data Management and Analysis System (NDMAS) at the Idaho National Laboratory to ensure that very high temperature reactor data are (1) qualified for use, (2) stored in a readily accessible electronic form, and (3) analyzed to extract useful results. This document focuses on the third NDMAS objective. It describes capabilities for displaying the data in meaningful ways and for data analysis to identify useful relationships among the measured quantities.

  9. RAM analysis helps cut turbine-generator systems costs

    SciTech Connect (OSTI)

    Cockerill, A.W. (Delta Tech. Systems, Cobourg, Ontario (CA)); Lavoie, M. (Ontario Hydro, Tiverton, Ontario (CA))

    1990-07-01T23:59:59.000Z

    Maintenance is effective when it improves equipment availability and reduces costs. Reduced costs stem from increased availability, which is the primary objective of this study. As a result, overall operating costs decrease. RAM analysis requires a logical approach to the problem through the use of techniques such as FMEA, FTA and goal trees. To illustrate the steps of this method, the authors used a simplified T-G system. This method is to rank critical components in terms of the severity of failure. On the basis of ranking, it is possible to assign the preventive maintenance tasks in order of priority. Other options are available. Examples are revised procedures, more detailed outage plans using PC-based programs and better spare parts management.

  10. Systems analysis of decontamination options for civilian vehicles.

    SciTech Connect (OSTI)

    Foltz, Greg W.; Hoette, Trisha Marie

    2010-11-01T23:59:59.000Z

    The objective of this project, which was supported by the Department of Homeland Security (DHS) Science and Technology Directorate (S&T) Chemical and Biological Division (CBD), was to investigate options for the decontamination of the exteriors and interiors of vehicles in the civilian setting in order to restore those vehicles to normal use following the release of a highly toxic chemical. The decontamination of vehicles is especially challenging because they often contain sensitive electronic equipment, multiple materials some of which strongly adsorb chemical agents, and in the case of aircraft, have very rigid material compatibility requirements (i.e., they cannot be exposed to reagents that may cause even minor corrosion). A systems analysis approach was taken examine existing and future civilian vehicle decontamination capabilities.

  11. Development of an analysis capability for the National Transportation System

    SciTech Connect (OSTI)

    Anson, D.; Nelson, R.

    1997-10-24T23:59:59.000Z

    The purpose of this report is to examine the Department of Transportation`s (DOT) National Transportation System (NTS) initiative, to document what has been learned, and to outline a National Transportation Network Analysis Capability (NTNAC) based on a ``TRANSIMS-like`` approach. This study was conducted over a two month period at the end of FY1997. The scope of the effort was carefully defined to accommodate the short time horizon and to provide focus to a very large analytical problem. The objectives were to: (1) define the NTS and the NTS problem; (2) identify problem characteristics; (3) describe an analytical solution based on the TRANSIMS approach; (4) identify data requirements and availability; (5) develop criteria for a scenario to be used in a prototype demonstration; and (6) select a scenario for the prototype demonstration.

  12. Reliability analysis of solar photovoltaic system using hourly mean solar radiation data

    SciTech Connect (OSTI)

    Moharil, Ravindra M. [Department of Electrical Engineering, Yeshwantrao Chavan College of Engineering, Nagpur, Maharashtra (India); Kulkarni, Prakash S. [Department of Electrical Engineering, Visvesvaraya National Institute of Technology, South Ambazari Road, Nagpur 440011, Maharashtra (India)

    2010-04-15T23:59:59.000Z

    This paper presents the hourly mean solar radiation and standard deviation as inputs to simulate the solar radiation over a year. Monte Carlo simulation (MCS) technique is applied and MATLAB program is developed for reliability analysis of small isolated power system using solar photovoltaic (SPV). This paper is distributed in two parts. Firstly various solar radiation prediction methods along with hourly mean solar radiation (HMSR) method are compared. The comparison is carried on the basis of predicted electrical power generation with actual power generated by SPV system. Estimation of solar photovoltaic power using HMSR method is close to the actual power generated by SPV system. The deviation in monsoon months is due to the cloud cover. In later part of the paper various reliability indices are obtained by HMSR method using MCS technique. Load model used is IEEE-RTS. Reliability indices, additional load hours (ALH) and additional power (AP) reduces exponentially with increase in load indicates that a SPV source will offset maximum fuel when all of its generated energy is utilized. Fuel saving calculation is also investigated. Case studies are presented for Sagardeep Island in West Bengal state of India. (author)

  13. Integrated dynamic landscape analysis and modeling system (IDLAMS) : installation manual.

    SciTech Connect (OSTI)

    Li, Z.; Majerus, K. A.; Sundell, R. C.; Sydelko, P. J.; Vogt, M. C.

    1999-02-24T23:59:59.000Z

    The Integrated Dynamic Landscape Analysis and Modeling System (IDLAMS) is a prototype, integrated land management technology developed through a joint effort between Argonne National Laboratory (ANL) and the US Army Corps of Engineers Construction Engineering Research Laboratories (USACERL). Dr. Ronald C. Sundell, Ms. Pamela J. Sydelko, and Ms. Kimberly A. Majerus were the principal investigators (PIs) for this project. Dr. Zhian Li was the primary software developer. Dr. Jeffrey M. Keisler, Mr. Christopher M. Klaus, and Mr. Michael C. Vogt developed the decision analysis component of this project. It was developed with funding support from the Strategic Environmental Research and Development Program (SERDP), a land/environmental stewardship research program with participation from the US Department of Defense (DoD), the US Department of Energy (DOE), and the US Environmental Protection Agency (EPA). IDLAMS predicts land conditions (e.g., vegetation, wildlife habitats, and erosion status) by simulating changes in military land ecosystems for given training intensities and land management practices. It can be used by military land managers to help predict the future ecological condition for a given land use based on land management scenarios of various levels of training intensity. It also can be used as a tool to help land managers compare different land management practices and further determine a set of land management activities and prescriptions that best suit the needs of a specific military installation.

  14. Integrated dynamic landscape analysis and modeling system (IDLAMS) : programmer's manual.

    SciTech Connect (OSTI)

    Klaus, C. M.; Li, Z.; Majerus, K. A.; Sundell, R. C.; Sydelko, P. J.; Vogt, M. C.

    1999-02-24T23:59:59.000Z

    The Integrated Dynamic Landscape Analysis and Modeling System (IDLAMS) is a prototype, integrated land management technology developed through a joint effort between Argonne National Laboratory (ANL) and the US Army Corps of Engineers Construction Engineering Research Laboratories (USACERL). Dr. Ronald C. Sundell, Ms. Pamela J. Sydelko, and Ms. Kimberly A. Majerus were the principal investigators (PIs) for this project. Dr. Zhian Li was the primary software developer. Dr. Jeffrey M. Keisler, Mr. Christopher M. Klaus, and Mr. Michael C. Vogt developed the decision analysis component of this project. It was developed with funding support from the Strategic Environmental Research and Development Program (SERDP), a land/environmental stewardship research program with participation from the US Department of Defense (DoD), the US Department of Energy (DOE), and the US Environmental Protection Agency (EPA). IDLAMS predicts land conditions (e.g., vegetation, wildlife habitats, and erosion status) by simulating changes in military land ecosystems for given training intensities and land management practices. It can be used by military land managers to help predict the future ecological condition for a given land use based on land management scenarios of various levels of training intensity. It also can be used as a tool to help land managers compare different land management practices and further determine a set of land management activities and prescriptions that best suit the needs of a specific military installation.

  15. SYSTEM ANALYSIS OF NUCLEAR-ASSISTED SYNGAS PRODUCTION FROM COAL

    SciTech Connect (OSTI)

    E. A. Harvego; M. G. McKellar; J. E. O'Brien

    2008-09-01T23:59:59.000Z

    A system analysis has been performed to assess the efficiency and carbon utilization of a nuclear-assisted coal gasification process. The nuclear reactor is a high-temperature helium-cooled reactor that is used primarily to provide power for hydrogen production via high-temperature electrolysis. The supplemental hydrogen is mixed with the outlet stream from an oxygen-blown coal gasifier to produce a hydrogen-rich gas mixture, allowing most of the carbon dioxide to be converted into carbon monoxide, with enough excess hydrogen to produce a syngas product stream with a hydrogen/carbon monoxide molar ratio of about 2:1. Oxygen for the gasifier is also provided by the high-temperature electrolysis process. Results of the analysis predict 90.5% carbon utilization with a syngas production efficiency (defined as the ratio of the heating value of the produced syngas to the sum of the heating value of the coal plus the high-temperature reactor heat input) of 66.1% at a gasifier temperature of 1866 K for the high-moisture-content lignite coal considered. Usage of lower moisture coals such as bituminous can yield carbon utilization approaching 100% and 70% syngas production efficiency.

  16. Energy consumption and comfort analysis for different low-energy cooling systems in a mild climate

    E-Print Network [OSTI]

    Chen, Qingyan "Yan"

    1 Energy consumption and comfort analysis for different low- energy cooling systems in a mild. "Energy consumption and comfort analysis for different low-energy cooling systems in a mild climate the architectural and mechanical design of a building. Several researchers have demonstrated the analysis of low-energy

  17. Systems analysis for the development of small resource recovery systems: system performance data. Final report

    SciTech Connect (OSTI)

    Crnkovich, P G; Helmstetter, A J

    1980-10-01T23:59:59.000Z

    The technologies that should be developed to make small-scale solid waste processing facilities attractive and viable for small municipalities with solid waste between 50 and 250 tons per day are identified. The resource recovery systems investigated were divided into three categories: thermal processng, mechanical separation, and biological processing. Thermal processing systems investigated are: excess-air incineration; starved-air incineration/gasification; and pyrolysis (indirect heating). Mechanical processing systems investigated are: coarse refuse derived fuel; materials separation; dust refuse derived fuel; densified refuse derived fuel; and fine refuse derived fuel. Mechanical processing components investigated include: receiving module; primary size reduction module; combustible separation module; refuse derived fuel preparation module; fuel densification; fuel storage module; ferrous separation; and building and facilities. Pretreatment processes and principle methods of bioconversion of MSW dealing with biological processing are investigated. (MCW)

  18. Technical Analysis of Installed Micro-Combined Heat and Power Fuel-Cell System

    SciTech Connect (OSTI)

    Brooks, Kriston P.; Makhmalbaf, Atefe

    2014-10-31T23:59:59.000Z

    Combined heat and power fuel cell systems (CHP-FCSs) provide consistent electrical power and hot water with greater efficiency and lower emissions than alternative sources. These systems can be used either as baseload, grid-connected, or as off-the-grid power sources. This report presents a technical analysis of 5 kWe CHP-FCSs installed in different locations in the U.S. At some sites as many as five 5 kWe system is used to provide up to 25kWe of power. Systems in this power range are considered “micro”-CHP-FCS. To better assess performance of micro-CHP-FCS and understand their benefits, the U.S. Department of Energy worked with ClearEdge Power to install fifteen 5-kWe PBI high temperature PEM fuel cells (CE5 models) in the commercial markets of California and Oregon. Pacific Northwest National Laboratory evaluated these systems in terms of their economics, operations, and technical performance. These units were monitored from September 2011 until June 2013. During this time, about 190,000 hours of data were collected and more than 17 billion data points were analyzed. Beginning in July 2013, ten of these systems were gradually replaced with ungraded systems (M5 models) containing phosphoric acid fuel cell technology. The new units were monitored until June 2014 until they went offline because ClearEdge was bought by Doosan at the time and the new manufacturer did not continue to support data collection and maintenance of these units. During these two phases, data was collected at once per second and data analysis techniques were applied to understand behavior of these systems. The results of this analysis indicate that systems installed in the second phase of this demonstration performed much better in terms of availability, consistency in generation, and reliability. The average net electrical power output increased from 4.1 to 4.9 kWe, net heat recovery from 4.7 to 5.4 kWth, and system availability improved from 94% to 95%. The average net system electric efficiency, average net heat recovery efficiency, and overall net efficiency of the system increased respectively from 33% to 36%, from 38% to 41%, and from 71% to 76%. The temperature of water sent to sit however reduced by about 16% from 51?C to 43 ?C. This was a control strategy and the temperature can be controlled depending on building heat demands. More importantly, the number of shutdowns and maintenance events required to keep the systems running at the manufacturer’s rated performance specifications were substantially reduced by about 76% (for 8 to 10 units running over a one-year period). From July 2012 to June 2013, there were eight CE5 units in operation and a total of 134 scheduled and unscheduled shutdowns took place. From July 2013 to June 2014, between two to ten units were in operation and only 32 shutdowns were reported (all unscheduled). In summary, the number of shutdowns reduced from 10 shutdowns per month on average for eight CE5units to an average of 2.7 shutdowns per month for M5 units (between two to ten units).

  19. Analysis of a PML method applied to computation to resonances in open systems and acoustic scattering problems

    E-Print Network [OSTI]

    Kim, Seungil

    2010-01-14T23:59:59.000Z

    equation ?U(x,t) = 1c2 ? 2 ?t2U(x,t). Here c is the speed of a wave such as light or sound. U is a velocity potential and has a relation with the velocity field v and pressure p as follows: v = 1? 0 ?U, p = ??U?t (III.1) with the density ?0 at a steady...

  20. Reliability Analysis of the Trigger Synchronisation and Distribution System of the LHC Beam Dumping System

    E-Print Network [OSTI]

    Filippini, R

    2013-01-01T23:59:59.000Z

    The Trigger Synchronisation and Distribution System (TSDS) is one of the core components of the LHC Beam Dumping System and an essential element to guarantee that operation with the beam is always safe. The most critical failure of the TSDS is the missed trigger and re-trigger of at least 2 MKD magnets. This report presents the modelling and analysis of the likelihood of the TSDS to develop such a failure scenario during operation. The analysis returns the Safety Integrity Level (SIL) for the TSDS, and the list of the most important contributors. Sensitivity analysis is performed with respect to the failure parameters and with respect to failure dependencies among components that are in the redundant sets. This includes a study of the common cause failures that are in the TSDS architecture. The results in terms of SIL for the TSDS will be compared to the SIL for the previous architecture which was operational until the Long Shutdown 1. Recommendations in order to obtain higher safety by design will also be gi...

  1. Development of a natural Gas Systems Analysis Model (GSAM)

    SciTech Connect (OSTI)

    Godec, M.; Haas, M.; Pepper, W.; Rose, J.

    1993-12-31T23:59:59.000Z

    Recent dramatic changes in natural gas markets have significant implications for the scope and direction of DOE`s upstream as well as downstream natural gas R&D. Open access transportation changes the way gas is bought and sold. The end of the gas deliverability surplus requires increased reserve development above recent levels. Increased gas demand for power generation and other new uses changes the overall demand picture in terms of volumes, locations and seasonality. DOE`s Natural Gas Strategic Plan requires that its R&D activities be evaluated for their ability to provide adequate supplies of reasonably priced gas. Potential R&D projects are to be evaluated using a full fuel cycle, benefit-cost approach to estimate likely market impact as well as technical success. To assure R&D projects are evaluated on a comparable basis, METC has undertaken the development of a comprehensive natural gas technology evaluation framework. Existing energy systems models lack the level of detail required to estimate the impact of specific upstream natural gas technologies across the known range of geological settings and likely market conditions. Gas Systems Analysis Model (GSAM) research during FY 1993 developed and implemented this comprehensive, consistent natural gas system evaluation framework. Rather than a isolated research activity, however, GSAM represents the integration of many prior and ongoing natural gas research efforts. When complete, it will incorporate the most current resource base description, reservoir modeling, technology characterization and other geologic and engineering aspects developed through recent METC and industry gas R&D programs.

  2. Object-Oriented Real-Time Systems Analysis and Design Issues

    E-Print Network [OSTI]

    Fayad, Mohamed

    -time systems. The assumption was made that the analysis and design methodology was fully object-oriented (O) The fundamental issues in real-time systems (hard and soft) are the view of the processes (critical, eObject-Oriented Real-Time Systems Analysis and Design Issues Workshop Co-Chairs Mohamed E. Fayad

  3. A New Book "NUMERICAL METHODS FOR LINEAR CONTROL SYSTEMS DESIGN AND ANALYSIS"

    E-Print Network [OSTI]

    Datta, Biswa

    A New Book "NUMERICAL METHODS FOR LINEAR CONTROL SYSTEMS DESIGN AND ANALYSIS" by Biswa Nath Datta I am pleased to announce publication of my book: "Numerical Methods for Linear Control Systems Design-of-the-art computationally viable algorithms for major tasks arising in linear control systems design and analysis

  4. Alternatives generation and analysis for phase I intermediate waste feed staging system design requirements

    SciTech Connect (OSTI)

    Britton, M.D.

    1996-10-02T23:59:59.000Z

    This document provides; a decision analysis summary; problem statement; constraints, requirements, and assumptions; decision criteria; intermediate waste feed staging system options and alternatives generation and screening; intermediate waste feed staging system design concepts; intermediate waste feed staging system alternative evaluation and analysis; and open issues and actions.

  5. Cost Analysis of Fuel Cell Systems for Transportation Compressed Hydrogen and PEM Fuel Cell System

    SciTech Connect (OSTI)

    Eric J. Carlson

    2004-10-20T23:59:59.000Z

    PEMFC technology for transportation must be competitive with internal combustion engine powertrains in a number of key metrics, including performance, life, reliability, and cost. Demonstration of PEMFC cost competitiveness has its own challenges because the technology has not been applied to high volume automotive markets. The key stack materials including membranes, electrodes, bipolar plates, and gas diffusion layers have not been produced in automotive volumes to the exacting quality requirements that will be needed for high stack yields and to the evolving property specifications of high performance automotive stacks. Additionally, balance-of-plant components for air, water, and thermal management are being developed to meet the unique requirements of fuel cell systems. To address the question of whether fuel cells will be cost competitive in automotive markets, the DOE has funded this project to assess the high volume production cost of PEM fuel cell systems. In this report a historical perspective of our efforts in assessment of PEMFC cost for DOE is provided along with a more in-depth assessment of the cost of compressed hydrogen storage is provided. Additionally, the hydrogen storage costs were incorporated into a system cost update for 2004. Assessment of cost involves understanding not only material and production costs, but also critical performance metrics, i.e., stack power density and associated catalyst loadings that scale the system components. We will discuss the factors influencing the selection of the system specification (i.e., efficiency, reformate versus direct hydrogen, and power output) and how these have evolved over time. The reported costs reflect internal estimates and feedback from component developers and the car companies. Uncertainty in the cost projection was addressed through sensitivity analyses.

  6. Large System Analysis of Zero-Forcing Precoding in MISO Broadcast Channels with Limited

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Large System Analysis of Zero-Forcing Precoding in MISO Broadcast Channels with Limited Feedback in MISO broadcast channels with limited feed- back, transmit correlation and path loss. Our analysis

  7. Optimization of Lyapunov invariants in analysis and implementation of safety-critical software systems

    E-Print Network [OSTI]

    Roozbehani, Mardavij

    2008-01-01T23:59:59.000Z

    This dissertation contributes to two major research areas in safety-critical software systems, namely, software analysis, and software implementation. In reference to the software analysis problem, the main contribution ...

  8. Sensitivity Analysis of Discrete Stochastic Systems Rudiyanto Gunawan,* Yang Cao,y

    E-Print Network [OSTI]

    Cao, Yang

    and deterministic analyses show the significance of explicit consideration of the probabilistic natureSensitivity Analysis of Discrete Stochastic Systems Rudiyanto Gunawan,* Yang Cao,y Linda Petzold, University of California, Santa Barbara, California ABSTRACT Sensitivity analysis quantifies the dependence

  9. Well-to-Wheels Analysis of Advanced Fuel/Vehicle Systems - A...

    Energy Savers [EERE]

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

  10. STOCHASTIC HYBRID SYSTEMS WITH RENEWAL TRANSITIONS: MOMENT ANALYSIS WITH APPLICATION TO

    E-Print Network [OSTI]

    Hespanha, João Pedro

    STOCHASTIC HYBRID SYSTEMS WITH RENEWAL TRANSITIONS: MOMENT ANALYSIS WITH APPLICATION TO NETWORKED motivated us to refer to these systems as Stochastic Hybrid Systems with Renewal Transitions. This class Stochastic Hybrid Systems (SHSs) for which the lengths of times that the system stays in each mode

  11. Wind energy Computerized Maintenance Management System (CMMS) : data collection recommendations for reliability analysis.

    SciTech Connect (OSTI)

    Peters, Valerie A.; Ogilvie, Alistair; Veers, Paul S.

    2009-09-01T23:59:59.000Z

    This report addresses the general data requirements for reliability analysis of fielded wind turbines and other wind plant equipment. The report provides a list of the data needed to support reliability and availability analysis, and gives specific recommendations for a Computerized Maintenance Management System (CMMS) to support automated analysis. This data collection recommendations report was written by Sandia National Laboratories to address the general data requirements for reliability analysis of fielded wind turbines. This report is intended to help the reader develop a basic understanding of what data are needed from a Computerized Maintenance Management System (CMMS) and other data systems, for reliability analysis. The report provides: (1) a list of the data needed to support reliability and availability analysis; and (2) specific recommendations for a CMMS to support automated analysis. Though written for reliability analysis of wind turbines, much of the information is applicable to a wider variety of equipment and a wider variety of analysis and reporting needs.

  12. Reducing the Carbon Footprint of Commercial Refrigeration Systems Using Life Cycle Climate Performance Analysis: From System Design to Refrigerant Options

    SciTech Connect (OSTI)

    Fricke, Brian A [ORNL] [ORNL; Abdelaziz, Omar [ORNL] [ORNL; Vineyard, Edward Allan [ORNL] [ORNL

    2013-01-01T23:59:59.000Z

    In this paper, Life Cycle Climate Performance (LCCP) analysis is used to estimate lifetime direct and indirect carbon dioxide equivalent gas emissions of various refrigerant options and commercial refrigeration system designs, including the multiplex DX system with various hydrofluorocarbon (HFC) refrigerants, the HFC/R744 cascade system incorporating a medium-temperature R744 secondary loop, and the transcritical R744 booster system. The results of the LCCP analysis are presented, including the direct and indirect carbon dioxide equivalent emissions for each refrigeration system and refrigerant option. Based on the results of the LCCP analysis, recommendations are given for the selection of low GWP replacement refrigerants for use in existing commercial refrigeration systems, as well as for the selection of commercial refrigeration system designs with low carbon dioxide equivalent emissions, suitable for new installations.

  13. Multiscale analysis of nonlinear systems using computational homology

    SciTech Connect (OSTI)

    Konstantin Mischaikow, Rutgers University /Georgia Institute of Technology, Michael Schatz, Georgia Institute of Technology, William Kalies, Florida Atlantic University, Thomas Wanner,George Mason University

    2010-05-19T23:59:59.000Z

    This is a collaborative project between the principal investigators. However, as is to be expected, different PIs have greater focus on different aspects of the project. This report lists these major directions of research which were pursued during the funding period: (1) Computational Homology in Fluids - For the computational homology effort in thermal convection, the focus of the work during the first two years of the funding period included: (1) A clear demonstration that homology can sensitively detect the presence or absence of an important flow symmetry, (2) An investigation of homology as a probe for flow dynamics, and (3) The construction of a new convection apparatus for probing the effects of large-aspect-ratio. (2) Computational Homology in Cardiac Dynamics - We have initiated an effort to test the use of homology in characterizing data from both laboratory experiments and numerical simulations of arrhythmia in the heart. Recently, the use of high speed, high sensitivity digital imaging in conjunction with voltage sensitive fluorescent dyes has enabled researchers to visualize electrical activity on the surface of cardiac tissue, both in vitro and in vivo. (3) Magnetohydrodynamics - A new research direction is to use computational homology to analyze results of large scale simulations of 2D turbulence in the presence of magnetic fields. Such simulations are relevant to the dynamics of black hole accretion disks. The complex flow patterns from simulations exhibit strong qualitative changes as a function of magnetic field strength. Efforts to characterize the pattern changes using Fourier methods and wavelet analysis have been unsuccessful. (4) Granular Flow - two experts in the area of granular media are studying 2D model experiments of earthquake dynamics where the stress fields can be measured; these stress fields from complex patterns of 'force chains' that may be amenable to analysis using computational homology. (5) Microstructure Characterization - We extended our previous work on studying the time evolution of patterns associated with phase separation in conserved concentration fields. (6) Probabilistic Homology Validation - work on microstructure characterization is based on numerically studying the homology of certain sublevel sets of a function, whose evolution is described by deterministic or stochastic evolution equations. (7) Computational Homology and Dynamics - Topological methods can be used to rigorously describe the dynamics of nonlinear systems. We are approaching this problem from several perspectives and through a variety of systems. (8) Stress Networks in Polycrystals - we have characterized stress networks in polycrystals. This part of the project is aimed at developing homological metrics which can aid in distinguishing not only microstructures, but also derived mechanical response fields. (9) Microstructure-Controlled Drug Release - This part of the project is concerned with the development of topological metrics in the context of controlled drug delivery systems, such as drug-eluting stents. We are particularly interested in developing metrics which can be used to link the processing stage to the resulting microstructure, and ultimately to the achieved system response in terms of drug release profiles. (10) Microstructure of Fuel Cells - we have been using our computational homology software to analyze the topological structure of the void, metal and ceramic components of a Solid Oxide Fuel Cell.

  14. Multiscale analysis of nonlinear systems using computational homology

    SciTech Connect (OSTI)

    Konstantin Mischaikow; Michael Schatz; William Kalies; Thomas Wanner

    2010-05-24T23:59:59.000Z

    This is a collaborative project between the principal investigators. However, as is to be expected, different PIs have greater focus on different aspects of the project. This report lists these major directions of research which were pursued during the funding period: (1) Computational Homology in Fluids - For the computational homology effort in thermal convection, the focus of the work during the first two years of the funding period included: (1) A clear demonstration that homology can sensitively detect the presence or absence of an important flow symmetry, (2) An investigation of homology as a probe for flow dynamics, and (3) The construction of a new convection apparatus for probing the effects of large-aspect-ratio. (2) Computational Homology in Cardiac Dynamics - We have initiated an effort to test the use of homology in characterizing data from both laboratory experiments and numerical simulations of arrhythmia in the heart. Recently, the use of high speed, high sensitivity digital imaging in conjunction with voltage sensitive fluorescent dyes has enabled researchers to visualize electrical activity on the surface of cardiac tissue, both in vitro and in vivo. (3) Magnetohydrodynamics - A new research direction is to use computational homology to analyze results of large scale simulations of 2D turbulence in the presence of magnetic fields. Such simulations are relevant to the dynamics of black hole accretion disks. The complex flow patterns from simulations exhibit strong qualitative changes as a function of magnetic field strength. Efforts to characterize the pattern changes using Fourier methods and wavelet analysis have been unsuccessful. (4) Granular Flow - two experts in the area of granular media are studying 2D model experiments of earthquake dynamics where the stress fields can be measured; these stress fields from complex patterns of 'force chains' that may be amenable to analysis using computational homology. (5) Microstructure Characterization - We extended our previous work on studying the time evolution of patterns associated with phase separation in conserved concentration fields. (6) Probabilistic Homology Validation - work on microstructure characterization is based on numerically studying the homology of certain sublevel sets of a function, whose evolution is described by deterministic or stochastic evolution equations. (7) Computational Homology and Dynamics - Topological methods can be used to rigorously describe the dynamics of nonlinear systems. We are approaching this problem from several perspectives and through a variety of systems. (8) Stress Networks in Polycrystals - we have characterized stress networks in polycrystals. This part of the project is aimed at developing homological metrics which can aid in distinguishing not only microstructures, but also derived mechanical response fields. (9) Microstructure-Controlled Drug Release - This part of the project is concerned with the development of topological metrics in the context of controlled drug delivery systems, such as drug-eluting stents. We are particularly interested in developing metrics which can be used to link the processing stage to the resulting microstructure, and ultimately to the achieved system response in terms of drug release profiles. (10) Microstructure of Fuel Cells - we have been using our computational homology software to analyze the topological structure of the void, metal and ceramic components of a Solid Oxide Fuel Cell.

  15. SARA (System ARchitects Apprentice): Modeling, analysis, and simulation support for design of concurrent systems

    SciTech Connect (OSTI)

    Estrin, G.; Fenchel, R.S.; Razouk, R.R.; Vernon, M.K.

    1986-02-01T23:59:59.000Z

    An environment to support designers in the modeling, analysis and simulation of concurrent systems is described. It is shown how a fully nested structure model supports multilevel design and focuses attention on the interfaces between the modules which serve to encapsulate behavior. Using simple examples the paper indicates how a formal graph model can be used to model behavior in three domains: control flow, data flow, and interpretation. The effectiveness of the explicity environment model in SARA is discussed and the capability to analyze correctness and evaluate performance of a system model are demonstrated. A description of the integral help designed into SARA shows how the designer can be offered consistent use of any new tool introduced to support the design process.

  16. Design and analysis of MIMO systems with practical channel state information assumptions

    E-Print Network [OSTI]

    Zheng, Jun

    2006-01-01T23:59:59.000Z

    Comparison with Optimal MISO CSI-Quantizers . . . . . . 9655 Capacity Analysis of MISO Systems with Finite-Rate CSIAnalysis of MISO CSI Quantizers with Mismatched Codebooks

  17. An Analysis of Residential PV System Price Differences Between the United States and Germany

    E-Print Network [OSTI]

    Seel, Joachim

    2014-01-01T23:59:59.000Z

    A levelized cost of electricity (LCoE) analysis based on thePV system prices could reduce LCoE assumptions: 25-year life

  18. Systems and Controls Analysis and Testing; Harvesting More Wind Energy with Advanced Controls Technology (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2010-01-01T23:59:59.000Z

    This fact sheet outlines the systems and controls analysis and testing that takes place at the NWTC on the Controls Advanced Research Turbines.

  19. analysis system semi-annual: Topics by E-print Network

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

    19 Semi-Annual Financial Report Grant Carver, Jeffrey C. 4 Ris 12-06-07 Energy Technology Systems Analysis Programme (ETSAP) Multidisciplinary Databases and...

  20. Resource analysis of the quantum linear system algorithm

    E-Print Network [OSTI]

    Artur Scherer; Benoît Valiron; Siun-Chuon Mau; Scott Alexander; Eric van den Berg; Thomas E. Chapuran

    2015-05-25T23:59:59.000Z

    We provide a detailed estimate for the logical resource requirements of the quantum linear system algorithm (QLSA) [Phys. Rev. Lett. 103, 150502 (2009)] including the recently described generalization [Phys. Rev. Lett. 110, 250504 (2013)]. Our resource estimates are based on the standard quantum-circuit model of quantum computation; they comprise circuit width, circuit depth, the number of qubits and ancilla qubits employed, and the overall number of elementary quantum gate operations as well as more specific gate counts for each elementary fault-tolerant gate from the standard set {X, Y, Z, H, S, T, CNOT}. To perform these estimates, we used an approach that combines manual analysis with automated estimates generated via the Quipper quantum programming language and compiler. Our estimates pertain to the example problem size N=332,020,680 beyond which, according to a crude big-O complexity comparison, QLSA is expected to run faster than the best known classical linear-system solving algorithm. For this problem size, a desired calculation accuracy 0.01 requires an approximate circuit width 340 and circuit depth of order $10^{25}$ if oracle costs are excluded, and a circuit width and depth of order $10^8$ and $10^{29}$, respectively, if oracle costs are included, indicating that the commonly ignored oracle resources are considerable. In addition to providing detailed logical resource estimates, it is also the purpose of this paper to demonstrate explicitly how these impressively large numbers arise with an actual circuit implementation of a quantum algorithm. While our estimates may prove to be conservative as more efficient advanced quantum-computation techniques are developed, they nevertheless provide a valid baseline for research targeting a reduction of the resource requirements, implying that a reduction by many orders of magnitude is necessary for the algorithm to become practical.