Sample records for factor exa peta

  1. Reliable High Performance Peta- and Exa-Scale Computing

    SciTech Connect (OSTI)

    Bronevetsky, G

    2012-04-02T23:59:59.000Z

    As supercomputers become larger and more powerful, they are growing increasingly complex. This is reflected both in the exponentially increasing numbers of components in HPC systems (LLNL is currently installing the 1.6 million core Sequoia system) as well as the wide variety of software and hardware components that a typical system includes. At this scale it becomes infeasible to make each component sufficiently reliable to prevent regular faults somewhere in the system or to account for all possible cross-component interactions. The resulting faults and instability cause HPC applications to crash, perform sub-optimally or even produce erroneous results. As supercomputers continue to approach Exascale performance and full system reliability becomes prohibitively expensive, we will require novel techniques to bridge the gap between the lower reliability provided by hardware systems and users unchanging need for consistent performance and reliable results. Previous research on HPC system reliability has developed various techniques for tolerating and detecting various types of faults. However, these techniques have seen very limited real applicability because of our poor understanding of how real systems are affected by complex faults such as soft fault-induced bit flips or performance degradations. Prior work on such techniques has had very limited practical utility because it has generally focused on analyzing the behavior of entire software/hardware systems both during normal operation and in the face of faults. Because such behaviors are extremely complex, such studies have only produced coarse behavioral models of limited sets of software/hardware system stacks. Since this provides little insight into the many different system stacks and applications used in practice, this work has had little real-world impact. My project addresses this problem by developing a modular methodology to analyze the behavior of applications and systems during both normal and faulty operation. By synthesizing models of individual components into a whole-system behavior models my work is making it possible to automatically understand the behavior of arbitrary real-world systems to enable them to tolerate a wide range of system faults. My project is following a multi-pronged research strategy. Section II discusses my work on modeling the behavior of existing applications and systems. Section II.A discusses resilience in the face of soft faults and Section II.B looks at techniques to tolerate performance faults. Finally Section III presents an alternative approach that studies how a system should be designed from the ground up to make resilience natural and easy.

  2. I) EXAS AIR CONTROL BLAR

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

    I) EXAS AIR CONTROL BLAR 6330 HWY. 290 EAST, AUSTIN, TEXAS 78723, 512451-5711 DICK WHmINGTON, P.E. JOHN L. BLAIR CHAIRMAN MARCUS M. KEY, M.D. CALVIN 8. PARNELL, JR., Ph.D., P.E....

  3. Nuclear Physics from QCD : The Anticipated Impact of Exa-Scale Computing

    E-Print Network [OSTI]

    Martin J. Savage

    2010-12-04T23:59:59.000Z

    I discuss highlights in the progress that is being made toward calculating processes of importance in nuclear physics from QCD using high performance computing. As exa-scale computing resources are expected to become available around 2017, I present current estimates of the computational resources required to accomplish central goals of nuclear physics.

  4. Towards the ASTRON & IBM Center for ExaScale Technology P. Chris Broekema

    E-Print Network [OSTI]

    van Nieuwpoort, Rob V.

    , ASTRON and IBM have now embarked on a public-private exascale computing research project aimed at solvingDOME Towards the ASTRON & IBM Center for ExaScale Technology P. Chris Broekema broekema@astron.nl Albert-Jan Boonstra boonstra@astron.nl Victoria Caparrós Cabezas vca@zurich.ibm.com Ton Engbersen apj@zurich.ibm

  5. PetaScale Calculations of the Electronic Structures of Nanostructures with Hundreds of Thousands of Processors

    E-Print Network [OSTI]

    PetaScale Calculations of the Electronic Structures of Nanostructures with Hundreds of Thousands in the material science category. The DFT can be used to calculate the electronic structure, the charge density. To understand the electronic structures of such systems and the corresponding carrier dynamics is essential

  6. Final Scientific Report: A Scalable Development Environment for Peta-Scale Computing

    SciTech Connect (OSTI)

    Karbach, Carsten; Frings, Wolfgang

    2013-02-20T23:59:59.000Z

    This document is the final scientific report of the project DE-SC000120 (A scalable Development Environment for Peta-Scale Computing)�. The objective of this project is the extension of the Parallel Tools Platform (PTP) for applying it to peta-scale systems. PTP is an integrated development environment for parallel applications. It comprises code analysis, performance tuning, parallel debugging and system monitoring. The contribution of the Juelich Supercomputing Centre (JSC) aims to provide a scalable solution for system monitoring of supercomputers. This includes the development of a new communication protocol for exchanging status data between the target remote system and the client running PTP. The communication has to work for high latency. PTP needs to be implemented robustly and should hide the complexity of the supercomputer's architecture in order to provide a transparent access to various remote systems via a uniform user interface. This simplifies the porting of applications to different systems, because PTP functions as abstraction layer between parallel application developer and compute resources. The common requirement for all PTP components is that they have to interact with the remote supercomputer. E.g. applications are built remotely and performance tools are attached to job submissions and their output data resides on the remote system. Status data has to be collected by evaluating outputs of the remote job scheduler and the parallel debugger needs to control an application executed on the supercomputer. The challenge is to provide this functionality for peta-scale systems in real-time. The client server architecture of the established monitoring application LLview, developed by the JSC, can be applied to PTP's system monitoring. LLview provides a well-arranged overview of the supercomputer's current status. A set of statistics, a list of running and queued jobs as well as a node display mapping running jobs to their compute resources form the user display of LLview. These monitoring features have to be integrated into the development environment. Besides showing the current status PTP's monitoring also needs to allow for submitting and canceling user jobs. Monitoring peta-scale systems especially deals with presenting the large amount of status data in a useful manner. Users require to select arbitrary levels of detail. The monitoring views have to provide a quick overview of the system state, but also need to allow for zooming into specific parts of the system, into which the user is interested in. At present, the major batch systems running on supercomputers are PBS, TORQUE, ALPS and LoadLeveler, which have to be supported by both the monitoring and the job controlling component. Finally, PTP needs to be designed as generic as possible, so that it can be extended for future batch systems.

  7. Understanding I/O workload characteristics of a Peta-scale storage system

    SciTech Connect (OSTI)

    Kim, Youngjae [ORNL; Gunasekaran, Raghul [ORNL

    2015-01-01T23:59:59.000Z

    Understanding workload characteristics is critical for optimizing and improving the performance of current systems and software, and architecting new storage systems based on observed workload patterns. In this paper, we characterize the I/O workloads of scientific applications of one of the world s fastest high performance computing (HPC) storage cluster, Spider, at the Oak Ridge Leadership Computing Facility (OLCF). OLCF flagship petascale simulation platform, Titan, and other large HPC clusters, in total over 250 thousands compute cores, depend on Spider for their I/O needs. We characterize the system utilization, the demands of reads and writes, idle time, storage space utilization, and the distribution of read requests to write requests for the Peta-scale Storage Systems. From this study, we develop synthesized workloads, and we show that the read and write I/O bandwidth usage as well as the inter-arrival time of requests can be modeled as a Pareto distribution. We also study the I/O load imbalance problems using I/O performance data collected from the Spider storage system.

  8. The ExaChallenge Symposium

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

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  9. PetaScale Initiative

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

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  10. The determination of compressibility factors of gaseous propane-nitrogen mixtures 

    E-Print Network [OSTI]

    Dickson, Cecil Herman

    1955-01-01T23:59:59.000Z

    LIBRARY A A N O'iLLEOE OF 1EXAS THE DETERMINATION OF COMPRESSIBILITY FACTORS OF GASEOUS PROPANE-NITROGEIN MIXTURES A Thesis Cecil Herman Dickson Submitted to the Graduate School of the Agricultural and Mechanical College of' Texas in partial... f'ulf'illment of the requirements for the de~ree of MASTER OF SCIENCE Ma]or GubjectI Chemistry May I&55 THE DETERMINATION OF COMPRESSIBILITY FACTORS OF GASEOUS PROPANE-NITROGEN MIXTURES A Thesis Cecil Herman Dickson Approved as to style...

  11. The determination of compressibility factors of gaseous propane-nitrogen mixtures

    E-Print Network [OSTI]

    Dickson, Cecil Herman

    1955-01-01T23:59:59.000Z

    LIBRARY A A N O'iLLEOE OF 1EXAS THE DETERMINATION OF COMPRESSIBILITY FACTORS OF GASEOUS PROPANE-NITROGEIN MIXTURES A Thesis Cecil Herman Dickson Submitted to the Graduate School of the Agricultural and Mechanical College of' Texas in partial... f'ulf'illment of the requirements for the de~ree of MASTER OF SCIENCE Ma]or GubjectI Chemistry May I&55 THE DETERMINATION OF COMPRESSIBILITY FACTORS OF GASEOUS PROPANE-NITROGEN MIXTURES A Thesis Cecil Herman Dickson Approved as to style...

  12. Lightweight and Statistical Techniques for Petascale PetaScale Debugging

    SciTech Connect (OSTI)

    Miller, Barton

    2014-06-30T23:59:59.000Z

    This project investigated novel techniques for debugging scientific applications on petascale architectures. In particular, we developed lightweight tools that narrow the problem space when bugs are encountered. We also developed techniques that either limit the number of tasks and the code regions to which a developer must apply a traditional debugger or that apply statistical techniques to provide direct suggestions of the location and type of error. We extend previous work on the Stack Trace Analysis Tool (STAT), that has already demonstrated scalability to over one hundred thousand MPI tasks. We also extended statistical techniques developed to isolate programming errors in widely used sequential or threaded applications in the Cooperative Bug Isolation (CBI) project to large scale parallel applications. Overall, our research substantially improved productivity on petascale platforms through a tool set for debugging that complements existing commercial tools. Previously, Office Of Science application developers relied either on primitive manual debugging techniques based on printf or they use tools, such as TotalView, that do not scale beyond a few thousand processors. However, bugs often arise at scale and substantial effort and computation cycles are wasted in either reproducing the problem in a smaller run that can be analyzed with the traditional tools or in repeated runs at scale that use the primitive techniques. New techniques that work at scale and automate the process of identifying the root cause of errors were needed. These techniques significantly reduced the time spent debugging petascale applications, thus leading to a greater overall amount of time for application scientists to pursue the scientific objectives for which the systems are purchased. We developed a new paradigm for debugging at scale: techniques that reduced the debugging scenario to a scale suitable for traditional debuggers, e.g., by narrowing the search for the root-cause analysis to a small set of nodes or by identifying equivalence classes of nodes and sampling our debug targets from them. We implemented these techniques as lightweight tools that efficiently work on the full scale of the target machine. We explored four lightweight debugging refinements: generic classification parameters, such as stack traces, application-specific classification parameters, such as global variables, statistical data acquisition techniques and machine learning based approaches to perform root cause analysis. Work done under this project can be divided into two categories, new algorithms and techniques for scalable debugging, and foundation infrastructure work on our MRNet multicast-reduction framework for scalability, and Dyninst binary analysis and instrumentation toolkits.

  13. Mira: Our 10-PetaFLOPS Supercomputer | Argonne Leadership Computing

    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 Office of Science (SC)Integrated Codes |IsLove Your1 SECTION A. Revised:7,A Search4 MiraFacility Our

  14. Approaching the exa-scale: a real-world evaluation of rendering extremely large data sets

    SciTech Connect (OSTI)

    Patchett, John M [Los Alamos National Laboratory; Ahrens, James P [Los Alamos National Laboratory; Lo, Li - Ta [Los Alamos National Laboratory; Browniee, Carson S [Los Alamos National Laboratory; Mitchell, Christopher J [Los Alamos National Laboratory; Hansen, Chuck [UNIV OF UTAH

    2010-10-15T23:59:59.000Z

    Extremely large scale analysis is becoming increasingly important as supercomputers and their simulations move from petascale to exascale. The lack of dedicated hardware acceleration for rendering on today's supercomputing platforms motivates our detailed evaluation of the possibility of interactive rendering on the supercomputer. In order to facilitate our understanding of rendering on the supercomputing platform, we focus on scalability of rendering algorithms and architecture envisioned for exascale datasets. To understand tradeoffs for dealing with extremely large datasets, we compare three different rendering algorithms for large polygonal data: software based ray tracing, software based rasterization and hardware accelerated rasterization. We present a case study of strong and weak scaling of rendering extremely large data on both GPU and CPU based parallel supercomputers using Para View, a parallel visualization tool. Wc use three different data sets: two synthetic and one from a scientific application. At an extreme scale, algorithmic rendering choices make a difference and should be considered while approaching exascale computing, visualization, and analysis. We find software based ray-tracing offers a viable approach for scalable rendering of the projected future massive data sizes.

  15. EXaMINE -Experimentation of a Monitoring and Control System for Managing Vulnerabilities of the European

    E-Print Network [OSTI]

    Wehenkel, Louis

    of the European Infrastructure for Electrical Power Exchange Antonio DIU Louis WEHENKEL Red Electrica de Espa~na S other places around the World, in Europe the electric power sector is undergoing a series of very impor. While the Euro- pean Electric Power System (EPS) was traditionally con- sidered as one of the most

  16. EXA-13-0001 - In the Matter of Washington State Fleet Operations |

    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 onYouTube YouTube Note: Since the YouTube|6721 Federal Register / Vol.6: RecordJune- BatteryVehicles | EVof Energy

  17. Power Factor Compensation (PFC) Power Factor Compensation

    E-Print Network [OSTI]

    Knobloch,Jürgen

    Power Factor Compensation (PFC) Power Factor Compensation The power factor (PF) is defined as the ratio between the active power and the apparent power of a system. If the current and voltage are periodic with period , and [ ), then the active power is defined by ( ) ( ) (their inner product

  18. Open Problems in Network-aware Data Management in Exa-scale Computing and Terabit Networking Era

    E-Print Network [OSTI]

    Balman, Mehmet

    2014-01-01T23:59:59.000Z

    1st Workshop on High-Performance Computing meets Databases (Provisioning,High Performance Computing, Networking, StorageConference for High Performance Computing, Networking,

  19. Open Problems in Network-aware Data Management in Exa-scale Computing and Terabit Networking Era

    SciTech Connect (OSTI)

    Balman, Mehmet; Byna, Surendra

    2011-12-06T23:59:59.000Z

    Accessing and managing large amounts of data is a great challenge in collaborative computing environments where resources and users are geographically distributed. Recent advances in network technology led to next-generation high-performance networks, allowing high-bandwidth connectivity. Efficient use of the network infrastructure is necessary in order to address the increasing data and compute requirements of large-scale applications. We discuss several open problems, evaluate emerging trends, and articulate our perspectives in network-aware data management.

  20. MARCH 19, 2013 PETA CLAIMS IGNORE REPORT'S VERDICT ON ANIMAL CARE

    E-Print Network [OSTI]

    Liblit, Ben

    standards of care for the animals in our research programs. As in any endeavor, on rare occasions for a group of cats serving as subjects in research aimed at improving treatment for people who depend on dual a cat was burned during surgery. To keep the cat warm during the procedure, researchers had placed

  1. Final Report for Enhancing the MPI Programming Model for PetaScale Systems

    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. DOEThe Bonneville Power AdministrationField8,Dist.New Mexico Feb.Information 91, 20159,Final Reminder:Final425|

  2. Power Factor Improvement

    E-Print Network [OSTI]

    Viljoen, T. A.

    1979-01-01T23:59:59.000Z

    Power factor control is a necessary ingredient in any successful Energy Management Program. Many companies are operating with power factors of 70% or less and are being penalized through the electrical utility bill. This paper starts by describing...

  3. Power Factor Reactive Power

    E-Print Network [OSTI]

    motor power: 117.7 V x 5.1 A = 600 W? = 0.6 kW? NOT the power measured by meter #12;Page 9 PSERC: displacement power factor: angle between voltage and current = 0 degrees pf = cos(0 degrees) = 1.0 true powerPage 1 PSERC Power Factor and Reactive Power Ward Jewell Wichita State University Power Systems

  4. FGF growth factor analogs

    DOE Patents [OSTI]

    Zamora, Paul O. (Gaithersburg, MD); Pena, Louis A. (Poquott, NY); Lin, Xinhua (Plainview, NY); Takahashi, Kazuyuki (Germantown, MD)

    2012-07-24T23:59:59.000Z

    The present invention provides a fibroblast growth factor heparin-binding analog of the formula: ##STR00001## where R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, X, Y and Z are as defined, pharmaceutical compositions, coating compositions and medical devices including the fibroblast growth factor heparin-binding analog of the foregoing formula, and methods and uses thereof.

  5. Electromagetic proton form factors

    E-Print Network [OSTI]

    M Y Hussein

    2006-10-31T23:59:59.000Z

    The electromagnetic form factors are crucial to our understanding of the proton internal structure, and thus provide a strong constraint of the distributions of the charge and magnetization current within the proton. We adopted the quark-parton model for calculating and understanding the charge structure of the proton interms of the electromagnetic form factors. A remarkable agreement with the available experimental evidence is found.

  6. Multi-factor authentication

    DOE Patents [OSTI]

    Hamlet, Jason R; Pierson, Lyndon G

    2014-10-21T23:59:59.000Z

    Detection and deterrence of spoofing of user authentication may be achieved by including a cryptographic fingerprint unit within a hardware device for authenticating a user of the hardware device. The cryptographic fingerprint unit includes an internal physically unclonable function ("PUF") circuit disposed in or on the hardware device, which generates a PUF value. Combining logic is coupled to receive the PUF value, combines the PUF value with one or more other authentication factors to generate a multi-factor authentication value. A key generator is coupled to generate a private key and a public key based on the multi-factor authentication value while a decryptor is coupled to receive an authentication challenge posed to the hardware device and encrypted with the public key and coupled to output a response to the authentication challenge decrypted with the private key.

  7. Factors Affecting Photosynthesis!

    E-Print Network [OSTI]

    Kudela, Raphael M.

    Factors Affecting Photosynthesis! Temperature Eppley (1972) Light Sverdrup's Critical Depth-493, but the general concept is still valid! ! #12;PB opt & Temperature! #12;Photosynthesis & Temperature! Remember: in the laboratory, we can measure photosynthesis versus irradiance (PvsE) and calculate Ek, Pmax, and alpha

  8. Public Health FAT FACTORS

    E-Print Network [OSTI]

    Qian, Ning

    : THE UNITED STATES SPENDS MORE ON HEALTH CARE THAN ANY OTHER COUNTRY. YET WE CONTINUE TO FALL FAR BEHIND States spends an astonishing percent of our gross domestic product on health care--significantly moreColumbia Public Health HOT TOPIC Climate Change FAT FACTORS Obesity Prevention BOOK SMART

  9. Journal Information Journal Impact Factor

    E-Print Network [OSTI]

    Krejcí, Pavel

    Journal Information Journal Impact Factor 5-Year Journal Impact Factor Journal Self Cites Journal Immediacy Index Journal Cited Half-Life 2012 JCR Science Edition Journal: CZECHOSLOVAK MATHEMATICAL JOURNAL Mark Journal Title ISSN Total Cites Impact Factor 5-Year Impact Factor Immediacy Index Citable Items

  10. Nucleon Electromagnetic Form Factors

    SciTech Connect (OSTI)

    Marc Vanderhaeghen; Charles Perdrisat; Vina Punjabi

    2007-10-01T23:59:59.000Z

    There has been much activity in the measurement of the elastic electromagnetic proton and neutron form factors in the last decade, and the quality of the data has greatly improved by performing double polarization experiments, in comparison with previous unpolarized data. Here we review the experimental data base in view of the new results for the proton, and neutron, obtained at JLab, MAMI, and MIT-Bates. The rapid evolution of phenomenological models triggered by these high-precision experiments will be discussed, including the recent progress in the determination of the valence quark generalized parton distributions of the nucleon, as well as the steady rate of improvements made in the lattice QCD calculations.

  11. Electrical & Computer Engineering S E M I N A R

    E-Print Network [OSTI]

    Koppelman, David M.

    Electrical & Computer Engineering S E M I N A R L o u i s i a n a S t a t e U n i v e r s i t y Critical Factors and Key Directions for Peta¤ops-scale Supercomputers Thomas Sterling California Institute

  12. Final Report PetaScale Application Development Analysis Grant Number DE-FG02-04ER25629

    SciTech Connect (OSTI)

    Robert W. Numrich

    2008-06-20T23:59:59.000Z

    The results obtained from this project will fundamentally change the way we look at computer performance analysis. These results are made possible by the precise definition of a consistent system of measurement with a set of primary units designed specifically for computer performance analysis. This system of units, along with their associated dimensions, allows us to apply the methods of dimensional analysis, based on the Pi Theorem, to define scaling and self-similarity relationships. These relationships reveal new insights into experimental results that otherwise seems only vaguely correlated. Applying the method to cache-miss data revealed scaling relationships that were not seen by those who originally collected the data. Applying dimensional analysis to the performance of parallel numerical algorithms revealed that computational force is a unifying concept for understanding the interaction between hardware and software. The efficiency of these algorithms depends, in a very intimate way, on the balance between hardware forces and software forces. Analysis of five different algorithms showed that performance analysis can be reduced to a study of the differential geometry of the efficiency surface. Each algorithm defines a set of curvilinear coordinates, specific to that algorithm, and different machines follow different paths along the surface depending on the difference in balance between hardware forces and software forces. Two machines with the same balance in forces follow the same path and are self-similar. The most important result from the project is the statement of the Principle of Computational Least Action. This principle follows from the identification of a dynamical system underlying computer performance analysis. Instructions in a computer are modeled as a classical system under the influence of computational forces. Each instruction generates kinetic energy during execution, and the sum of the kinetic energy for all instructions produces a kinetic energy spectrum as a function of time. These spectra look very much like the spectra used by chemists to analyze properties of molecules. Large spikes in the spectra reveal events during execution, like cache misses, that limit performance. The area under the kinetic energy spectrum is the computational action generated by the program. This computational action defines a normed metric space that measures the size of a program in terms of its action norm and the distance between programs in terms of the norm of the difference of their action. This same idea can be applied to a set of programmers writing code and leads to a computational action metric that measures programmer productivity. In both cases, experimental evidence suggests that highly efficient programs and highly productive programmers generate the least computational action.

  13. Design and analysis of a 3-dimensional cluster multicomputer architecture using optical interconnection for petaFLOP computing

    E-Print Network [OSTI]

    Okorafor, Ekpe Apia

    2007-04-25T23:59:59.000Z

    takes advantage of optical technologies, harnessing the features inherent in optics, to produce a 3D stack that implements efficiently a large, fully connected system of nodes forming a true 3D architecture. To adopt optics in large-scale multiprocessor...

  14. Building a completely positive factorization

    E-Print Network [OSTI]

    2010-03-14T23:59:59.000Z

    Aug 19, 2009 ... Abstract. Using a bordering approach, and building upon an already known factorization of a principal block, we establish sufficient conditions.

  15. Journal Information Journal Impact Factor

    E-Print Network [OSTI]

    Krejcí, Pavel

    Journal Information Journal Impact Factor 5-Year Journal Impact Factor Journal Self Cites Journal Immediacy Index 2012 JCR Science Edition Journal: Applications of Mathematics Mark Journal Title ISSN Total- life APPL MATH-CZECH 0862-7940 240 0.222 0.549 0.054 37 7.3 >10.0 Cited Journal Citing Journal Source

  16. Factors influencing quantitative liquid (scanning) transmission...

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

    Factors influencing quantitative liquid (scanning) transmission electron microscopy. Factors influencing quantitative liquid (scanning) transmission electron microscopy. Abstract:...

  17. Risk factors for equine laminitis

    E-Print Network [OSTI]

    Polzer, John Patrick

    1995-01-01T23:59:59.000Z

    logistic regression to assess age, breed, sex, and seasonality as risk factors for equine laminitis. There were 70 acute cases, 183 chronic cases, and 779 controls. No statistical association was found between age, breed, sex, or seasonality...

  18. Electrical and Production Load Factors 

    E-Print Network [OSTI]

    Sen, Tapajyoti

    2010-07-14T23:59:59.000Z

    Load factors are an important simplification of electrical energy use data and depend on the ratio of average demand to peak demand. Based on operating hours of a facility they serve as an important benchmarking tool for ...

  19. Factors Affecting Option Premium Values

    E-Print Network [OSTI]

    Johnson, Jason; Smith, Jackie; Dhuyvetter, Kevin C.; Waller, Mark L.

    1999-06-23T23:59:59.000Z

    Factors Affecting Option Premium Values Jason Johnson, Jackie Smith, Kevin Dhuyvetter and Mark Waller* Put Options Hedging in the futures market with options is much like buying an insurance policy to protect commodity sellers against declining...

  20. Electrical and Production Load Factors

    E-Print Network [OSTI]

    Sen, Tapajyoti

    2010-07-14T23:59:59.000Z

    Load factors are an important simplification of electrical energy use data and depend on the ratio of average demand to peak demand. Based on operating hours of a facility they serve as an important benchmarking tool for the industrial sector...

  1. Integer factorization is in P

    E-Print Network [OSTI]

    owner

    2014-04-07T23:59:59.000Z

    can be solved by a deterministic Turing machine in polynomial time(see e.g.. Cormen et al. (2009)). Theorem 5. Integer factorization is in FP. Algorithm 2 can be ...

  2. Automatic Test Factoring for Java

    E-Print Network [OSTI]

    Saff, David

    2005-06-08T23:59:59.000Z

    Test factoring creates fast, focused unit tests from slow system-widetests; each new unit test exercises only a subset of the functionalityexercised by the system test. Augmenting a test suite with factoredunit tests ...

  3. Human Factors of Reporting Systems

    E-Print Network [OSTI]

    Johnson, C.W.

    Johnson,C.W. P. Carayon (ed.), A Handbook of Human Factors and Ergonomics in Healthcare and Patient Safety, Lawrence Erlbaum, London, UK. pp 715-750 Lawrence Erlbaum Associates

  4. Radiant-interchange configuration factors

    E-Print Network [OSTI]

    Reddin, Thomas Edward

    1965-01-01T23:59:59.000Z

    an important role in any situation involving radiant interchange. The engineer desiring to compute the radiant heat transfer in a system is usually discouraged from performing more than a superficial estimation because of the excessive amount of time... Monitor System using the Fortran IV Compiler and the Macro Assembly Program. Listings of the programs appear in the appendices. CHAPTER II THE GEOMETRY OF THE BLACK BODY CONFIGURATION FACTOR 2. 1 Derivation of the Configuration Factor To evaluate...

  5. Optimization Online - Integer Factorization is in P

    E-Print Network [OSTI]

    Yuly Shipilevsky

    2012-08-31T23:59:59.000Z

    Aug 31, 2012 ... Integer Factorization is in P. Yuly Shipilevsky (yulysh2000 ***at*** yahoo.ca). Abstract: A polynomial-time algorithm for integer factorization, ...

  6. Transcription factor-based biosensor

    DOE Patents [OSTI]

    2013-10-08T23:59:59.000Z

    The present invention provides for a system comprising a BmoR transcription factor, a .sigma..sup.54-RNA polymerase, and a pBMO promoter operatively linked to a reporter gene, wherein the pBMO promoter is capable of expression of the reporter gene with an activated form of the BmoR and the .sigma..sup.54-RNA polymerase.

  7. Factors Impacting Decommissioning Costs - 13576

    SciTech Connect (OSTI)

    Kim, Karen; McGrath, Richard [Electric Power Research Institute, 3420 Hillview Ave., Palo Alto, California (United States)] [Electric Power Research Institute, 3420 Hillview Ave., Palo Alto, California (United States)

    2013-07-01T23:59:59.000Z

    The Electric Power Research Institute (EPRI) studied United States experience with decommissioning cost estimates and the factors that impact the actual cost of decommissioning projects. This study gathered available estimated and actual decommissioning costs from eight nuclear power plants in the United States to understand the major components of decommissioning costs. Major costs categories for decommissioning a nuclear power plant are removal costs, radioactive waste costs, staffing costs, and other costs. The technical factors that impact the costs were analyzed based on the plants' decommissioning experiences. Detailed cost breakdowns by major projects and other cost categories from actual power plant decommissioning experiences will be presented. Such information will be useful in planning future decommissioning and designing new plants. (authors)

  8. An analysis of factors contributing to train-involved crashes

    E-Print Network [OSTI]

    Cooner, Scott Allen

    1995-01-01T23:59:59.000Z

    analyzed for the contributing factors. The contributing factors were classified into four categories: railroad factors, environmental factors, roadway factors, and driver/passenger factors. The accident data was analyzed using one and two-way classification...

  9. Nonlinear relationships between individual IEQ factors and overall workspace satisfaction

    E-Print Network [OSTI]

    Kim, Jungsoo; de Dear, Richard

    2011-01-01T23:59:59.000Z

    in dissatisfaction. So for Bonus Factors, the absolute valuemarketing literature), (2) Bonus Factors (synonyms include “for occupants’ satisfaction. Bonus Factors: Bonus Factors go

  10. Dissecting Soft Radiation with Factorization

    E-Print Network [OSTI]

    Iain W. Stewart; Frank J. Tackmann; Wouter J. Waalewijn

    2015-02-10T23:59:59.000Z

    An essential part of high-energy hadronic collisions is the soft hadronic activity that underlies the primary hard interaction. It includes soft radiation from the primary hard partons, secondary multiple parton interactions (MPI), and factorization-violating effects. The invariant mass spectrum of the leading jet in $Z$+jet and $H$+jet events is directly sensitive to these effects, and we use a QCD factorization theorem to predict its dependence on the jet radius $R$, jet $p_T$, jet rapidity, and partonic process for both the perturbative and nonperturbative components of primary soft radiation. We prove that the nonperturbative contributions involve only odd powers of $R$, and the linear $R$ term is universal for quark and gluon jets. The hadronization model in PYTHIA8 agrees well with these properties. The perturbative soft initial state radiation (ISR) has a contribution that depends on the jet area in the same way as the underlying event, but this degeneracy is broken by dependence on the jet $p_T$. The size of this soft ISR contribution is proportional to the color state of the initial partons, yielding the same positive contribution for $gg\\to Hg$ and $gq\\to Zq$, but a negative interference contribution for $q\\bar q\\to Z g$. Hence, measuring these dependencies allows one to separate hadronization, soft ISR, and MPI contributions in the data.

  11. Industrial Equipment Demand and Duty Factors

    E-Print Network [OSTI]

    Dooley, E. S.; Heffington, W. M.

    Demand and duty factors have been measured for selected equipment (air compressors, electric furnaces, injection molding machines, centrifugal loads, and others) in industrial plants. Demand factors for heavily loaded air compressors were near 100...

  12. Guidelines for Power Factor Improvement Projects

    E-Print Network [OSTI]

    Massey, G. W.

    Power factor is an indication of electrical system efficiency. Low power factor, or low system efficiency, may be due to one or more causes, including lightly loaded transformers, oversized electric motors, and harmonic-generating non-linear loads...

  13. Cone Penetrometer N Factor Determination Testing Results

    SciTech Connect (OSTI)

    Follett, Jordan R.

    2014-03-05T23:59:59.000Z

    This document contains the results of testing activities to determine the empirical 'N Factor' for the cone penetrometer in kaolin clay simulant. The N Factor is used to releate resistance measurements taken with the cone penetrometer to shear strength.

  14. Factors for Bioenergy Market Development

    SciTech Connect (OSTI)

    Roos, A.; Hektor, B.; Graham, R.L.; Rakos, C.

    1998-10-04T23:59:59.000Z

    Focusing on the development of the whole bioenergy market rather than isolated projects, this paper contributes to the identification of barriers and drivers behind bioenergy technology implementation. It presents a framework for the assessment of the potentials for bioenergy market growth to be used by decision makers in administration and industry. The conclusions are based on case studies of operating bioenergy markets in Austria, US and Sweden. Six important factors for bioenergy market growth have been identified: (1) Integration with other business, e.g. for biomass procurement, (2) Scale effects of bioenergy market, (3) Competition on bioenergy market, (4) Competition with other business, (5) National policy, (6) Local policy and local opinion. Different applications of the framework are discussed.

  15. Infrared Scales and Factorization in QCD

    E-Print Network [OSTI]

    Aneesh V. Manohar

    2005-12-14T23:59:59.000Z

    Effective field theory methods are used to study factorization of the deep inelastic scattering cross-section. The cross-section is shown to factor in QCD, even though it does not factor in perturbation theory for some choices of the infrared regulator. Messenger modes are not required in soft-collinear effective theory for deep inelastic scattering as x -> 1.

  16. Prime Factorization in the Duality Computer

    E-Print Network [OSTI]

    Wan-Ying Wang; Bin Shang; Chuan Wang; Gui Lu Long

    2006-07-04T23:59:59.000Z

    We give algorithms to factorize large integers in the duality computer. We provide three duality algorithms for factorization based on a naive factorization method, the Shor algorithm in quantum computing, and the Fermat's method in classical computing. All these algorithms are polynomial in the input size.

  17. Journal influence factors6 Massimo Franceschet

    E-Print Network [OSTI]

    Franceschet, Massimo

    Journal influence factors6 Massimo Franceschet Department of Mathematics and Computer Science of journal influence, namely 2- year impact factor, 5-year impact factor, eigenfactor and article influence. These indicators have been recently added by Thomson Reuters to the Journal Citation Reports, in both science

  18. Factor Analysis for Skewed Data and Skew-Normal Maximum Likelihood Factor Analysis

    E-Print Network [OSTI]

    Gaucher, Beverly Jane

    2013-04-04T23:59:59.000Z

    . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 2.7.1 The Factor Analysis Model . . . . . . . . . . . . . . . . . 28 v 2.8 Model Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 2.8.1 The Akaike Information Criterion . . . . . . . . . . . . . . 30 2.8.2 The Bayesian... Information Criterion . . . . . . . . . . . . . 31 2.9 Factor Scores . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 2.10 Non-uniqueness of Factor Loadings . . . . . . . . . . . . . . . . . . 32 2.10.1 The Rotation of Factor Loadings...

  19. Synthetic heparin-binding growth factor analogs

    DOE Patents [OSTI]

    Pena, Louis A.; Zamora, Paul; Lin, Xinhua; Glass, John D.

    2007-01-23T23:59:59.000Z

    The invention provides synthetic heparin-binding growth factor analogs having at least one peptide chain that binds a heparin-binding growth factor receptor, covalently bound to a hydrophobic linker, which is in turn covalently bound to a non-signaling peptide that includes a heparin-binding domain. The synthetic heparin-binding growth factor analogs are useful as soluble biologics or as surface coatings for medical devices.

  20. Human factors methods in DOE nuclear facilities

    SciTech Connect (OSTI)

    Bennett, C.T.; Banks, W.W. (Lawrence Livermore National Lab., CA (United States)); Waters, R.J. (Department of Energy, Washington, DC (United States))

    1993-01-01T23:59:59.000Z

    The US Department of Energy (DOE) is in the process of developing a series of guidelines for the use of human factors standards, procedures, and methods to be used in nuclear facilities. This paper discusses the philosophy and process being used to develop a DOE human factors methods handbook to be used during the design cycle. The following sections will discuss: (1) basic justification for the project; (2) human factors design objectives and goals; and (3) role of human factors engineering (HFE) in the design cycle.

  1. Factorization for hadronic heavy quarkonium production

    E-Print Network [OSTI]

    Jian-Wei Qiu

    2006-10-31T23:59:59.000Z

    We briefly review several models of heavy quarkonium production in hadronic collisions, and discuss the status of QCD factorization for these production models.

  2. Vitiligo: A good prognostic factor in melanoma?

    E-Print Network [OSTI]

    Cunha, Daniela; Pacheco, Fernando Assis; Cardoso, Jorge

    2009-01-01T23:59:59.000Z

    with intermediate to thick melanomas (>1 mm) with the use ofgood prognostic factor in melanoma? Daniela Cunha, Fernandoimmunologic therapy for melanoma is generally regarded as a

  3. Optimization Online - Building a completely positive factorization

    E-Print Network [OSTI]

    Immanuel Bomze

    2009-08-21T23:59:59.000Z

    Aug 21, 2009 ... Abstract: Using a bordering approach, and building upon an already known factorization of a principal block, we establish sufficient conditions ...

  4. Photon impact factor in the NLO

    SciTech Connect (OSTI)

    Balitsky, Ian [JLAB

    2013-04-01T23:59:59.000Z

    The photon impact factor for the BFKL pomeron is calculated in the next-to-leading order (NLO) approximation using the operator expansion in Wilson lines. The result is represented as a NLO k{sub T}-factorization formula for the structure functions of small-x deep inelastic scattering.

  5. Aviation Human Factors Division Institute of Aviation

    E-Print Network [OSTI]

    AHFD Aviation Human Factors Division Institute of Aviation University of Illinois at Urbana Systems Monitoring and Control Gavin R. Essenberg, Douglas A. Wiegmann, Aviation Human Factors Division experiments with more difficult path selection tasks might reveal if there are advantages for motion. Overall

  6. Cloud Controlling Factors --Low Clouds BJORN STEVENS,

    E-Print Network [OSTI]

    Stevens, Bjorn

    Cloud Controlling Factors -- Low Clouds BJORN STEVENS, Department of Atmospheric and Oceanic) clouds is reviewed, with an emphasis on factors that may be expected to change in a changing climate of low-cloud control- ling processes are offered: these include renewing our focus on theory, model

  7. The Influence of Parentage, Nutrition, Temperature, and Crowding on Wing Production in Aphis gossypii, Glover.

    E-Print Network [OSTI]

    Reinhard, H. J. (Henry Jonathan)

    1927-01-01T23:59:59.000Z

    EXAS AGRICULTURAL EXPERIMENT STATION B. YOUNGBLOOD, DIRECTOR COLLEGE STATION, BRAZOS COUNTY, TEXAS DIVISION OF ENTOMOLOGY THE INFLUENCE OF PARENTAGE, NUTRI- I TION, TEMPERATURE, AND CROWDING ON WING PRODUCTION IN APHIS, GOSSY PII, GLOVER...- DUCTION IN APHIS GOSSYPII, GLOVER Incidental to the life history studies of Aphis gossypii by Paddock (G), some observations on factors affecting dimorphism in this species were made. These preliminary observations resulted in a more com- p~lete study...

  8. A Reliability and Validity Study of the Protective Factors Survey to Assess Protective Factors in Families

    E-Print Network [OSTI]

    Counts, Jacqueline Marie

    2010-04-29T23:59:59.000Z

    and caregivers. Confirmatory factor analyses were conducted with a sample of 1,078 participants, who completed a parent education program in Nevada. Results provide psychometric data that support a valid and reliable four-factor solution, consisting of family...

  9. Background Bayes Factor Simulation Study BF And PPP Using Bayes Factors for Model Selection in

    E-Print Network [OSTI]

    Wolfe, Patrick J.

    Background Bayes Factor Simulation Study BF And PPP Using Bayes Factors for Model Selection in High Study BF And PPP Model Comparison in Astrophysics Nested models (line detection in spectral analysis" to formally compare or select a model. #12;Background Bayes Factor Simulation Study BF And PPP Spectral

  10. Synthetic heparin-binding factor analogs

    DOE Patents [OSTI]

    Pena, Louis A. (Poquott, NY); Zamora, Paul O. (Gaithersburg, MD); Lin, Xinhua (Plainview, NY); Glass, John D. (Shoreham, NY)

    2010-04-20T23:59:59.000Z

    The invention provides synthetic heparin-binding growth factor analogs having at least one peptide chain, and preferably two peptide chains branched from a dipeptide branch moiety composed of two trifunctional amino acid residues, which peptide chain or chains bind a heparin-binding growth factor receptor and are covalently bound to a non-signaling peptide that includes a heparin-binding domain, preferably by a linker, which may be a hydrophobic linker. The synthetic heparin-binding growth factor analogs are useful as pharmaceutical agents, soluble biologics or as surface coatings for medical devices.

  11. Assessment of International Work on Organizational Factors

    SciTech Connect (OSTI)

    Wall, Ian

    2002-06-01T23:59:59.000Z

    This report describes the concept of organizational factors and includes a consensus definition. It summarizes existing methods for assessing organizations from a safety culture perspective, for analyzing past incidents at plants to assess the role of safety culture, and for using such incident analysis to provide a database supporting organizational factors models. It describes existing methods that potentially could be extended to quantify organizational factors in a Probabilistic Safety Analysis. It concludes that no method is clearly superior for this purpose and recommends the organization of a workshop to clarify important issues prior to selecting a method.

  12. Carbon Dioxide Emission Factors for Coal

    Reports and Publications (EIA)

    1994-01-01T23:59:59.000Z

    The Energy Information Administration (EIA) has developed factors for estimating the amount of carbon dioxide emitted, accounting for differences among coals, to reflect the changing "mix" of coal in U.S. coal consumption.

  13. Decision making process and factors routing

    E-Print Network [OSTI]

    Sun, Yichen, S.M. Massachusetts Institute of Technology

    2013-01-01T23:59:59.000Z

    This research studies the decision-making process and the factors that affect truck routing. The data collection involved intercept interviews with truck drivers at three rest area and truck stops along major highways in ...

  14. Crop Management Factors: What is Important?

    E-Print Network [OSTI]

    Kastens, Terry L.; Dhuyvetter, Kevin C.; Nivens, Heather; Klinefelter, Danny A.

    1999-09-29T23:59:59.000Z

    Crop Management Factors: What is Important? Terry L. Kastens, Kevin C. Dhuyvetter, Heather Nivens and Danny Klinefelter* Defining Good Farm Management Economically, a well-managed farm is one that consistently makes greater prof- its than similarly...

  15. GPDs, form factors and Compton scattering

    E-Print Network [OSTI]

    P. Kroll

    2002-07-09T23:59:59.000Z

    The basic theoretical ideas of the handbag factorization and its application to wide-angle scattering reactions are reviewed. With regard to the present experimental program carried out at JLab, wide-angle Compton scattering is discussed in some detail.

  16. Factors affecting mother-child play

    E-Print Network [OSTI]

    Welch, Jennifer Colleen

    1993-01-01T23:59:59.000Z

    , factors that affect parents' ability to play with their children have not been widely addressed in the literature. As Webster-Stratton (1990) points out, little effort has been made to understand "the factors that influence parents' perceptions... support of competent parenting" (p. 215). Although there is not sufficient evidence to date to support this claim, it is clear that marital satisfaction and marital conflict should not be overlooked when researching parenting (e. g. , Brody, Pellegrini...

  17. Pion form factor with chirally improved fermions

    E-Print Network [OSTI]

    Stefano Capitani; Christof Gattringer; C. B. Lang

    2005-09-12T23:59:59.000Z

    We present results for Monte Carlo calculations of the electromagnetic vector and scalar form factors of the pion in a quenched simulation. We work at a lattice spacing of 0.15 fm and use two lattice volumes up to a spatial size of 2.4 fm. The pion form factors in the space-like region are determined for pion masses down to 340 MeV.

  18. On geometric factors for neutral particle analyzers

    SciTech Connect (OSTI)

    Stagner, L.; Heidbrink, W. W. [University of California-Irvine, Irvine, California 92697-4575 (United States)

    2014-11-15T23:59:59.000Z

    Neutral particle analyzers (NPA) detect neutralized energetic particles that escape from plasmas. Geometric factors relate the counting rate of the detectors to the intensity of the particle source. Accurate geometric factors enable quick simulation of geometric effects without the need to resort to slower Monte Carlo methods. Previously derived expressions [G. R. Thomas and D. M. Willis, “Analytical derivation of the geometric factor of a particle detector having circular or rectangular geometry,” J. Phys. E: Sci. Instrum. 5(3), 260 (1972); J. D. Sullivan, “Geometric factor and directional response of single and multi-element particle telescopes,” Nucl. Instrum. Methods 95(1), 5–11 (1971)] for the geometric factor implicitly assume that the particle source is very far away from the detector (far-field); this excludes applications close to the detector (near-field). The far-field assumption does not hold in most fusion applications of NPA detectors. We derive, from probability theory, a generalized framework for deriving geometric factors that are valid for both near and far-field applications as well as for non-isotropic sources and nonlinear particle trajectories.

  19. Odd orders in Shor's factoring algorithm

    E-Print Network [OSTI]

    Thomas Lawson

    2015-01-13T23:59:59.000Z

    Shor's factoring algorithm (SFA) finds the prime factors of a number, $N=p_1 p_2$, exponentially faster than the best known classical algorithm. Responsible for the speed-up is a subroutine called the quantum order finding algorithm (QOFA) which calculates the order -- the smallest integer, $r$, satisfying $a^r \\mod N =1$, where $a$ is a randomly chosen integer coprime to $N$ (meaning their greatest common divisor is one, $\\gcd(a, N) =1$). Given $r$, and with probability not less than $1/2$, the factors are given by $p_1 = \\gcd (a^{\\frac{r}{2}} - 1, N)$ and $p_2 = \\gcd (a^{\\frac{r}{2}} + 1, N)$. For odd $r$ it is assumed the factors cannot be found (since $a^{\\frac{r}{2}}$ is not generally integer) and the QOFA is relaunched with a different value of $a$. But a recent paper [E. Martin-Lopez: Nat Photon {\\bf 6}, 773 (2012)] noted that the factors can sometimes be found from odd orders if the coprime is square. This raises the question of improving SFA's success probability by considering odd orders. We show that an improvement is possible, though it is small. We present two techniques for retrieving the order from apparently useless runs of the QOFA: not discarding odd orders; and looking out for new order finding relations in the case of failure. In terms of efficiency, using our techniques is equivalent to avoiding square coprimes and disregarding odd orders, which is simpler in practice. Even still, our techniques may be useful in the near future, while demonstrations are restricted to factoring small numbers. The most convincing demonstrations of the QOFA are those that return a non-power-of-two order, making odd orders that lead to the factors attractive to experimentalists.

  20. 304 SYMPO,g~L'M XXXv the extent of the MiiUer fiber. /t is [dt ~of exa.mpie~ ~ih~:,iib V~c>~-,4"c.~

    E-Print Network [OSTI]

    Hubel, David

    ~nesl~or: (~n~!a~di~:g av~.:.>c~ of special interest m the p~!y,zhologixl ¢onc#,'~ atw -~m~.~}h~' ~a

  1. Hadronic form factors in kaon photoproduction

    SciTech Connect (OSTI)

    Syukurilla, L., E-mail: tmart@fisika.ui.ac.id; Mart, T., E-mail: tmart@fisika.ui.ac.id [Department Fisika, FMIPA, Universitas Indonesia, Depok, 164242 (Indonesia)

    2014-09-25T23:59:59.000Z

    We have revisited the effect of hadronic form factors in kaon photoproduction process by utilizing an isobaric model developed for kaon photoproduction off the proton. The model is able to reproduce the available experimental data nicely as well as to reveal the origin of the second peak in the total cross section, which was the main source of confusion for decades. Different from our previous study, in the present work we explore the possibility of using different hadronic form factors in each of the K?N vertices. The use of different hadronic form factors, e.g. dipole, Gaussian, and generalized dipole, has been found to produce a more flexible isobar model, which can provide a significant improvement in the model.

  2. Invariant Form of BK-factorization and its Applications

    E-Print Network [OSTI]

    E. Kartashova; O. Rudenko

    2006-07-24T23:59:59.000Z

    Invariant form of BK-factorization is presented, it is used for factorization of the LPDOs equivalent under gauge transformation and for construction of approximate factorization simplifying numerical simulsations with corresponding LPDEs of higher order

  3. Towards Controlling the Acceptance Factors for a Collaborative Platform in

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Towards Controlling the Acceptance Factors for a Collaborative Platform in Engineering Design factor which are supposed to influence future users of a collaborative KM platform (Dimocode). At the end management systems (KMS) deployment. Keywords: acceptance factors, collaborative, platforms, engineering

  4. From Saudi Arabia to Venezuela: Energy Resources, Market Factors & ConflictsEnergy Resources, Market Factors & Conflicts

    E-Print Network [OSTI]

    O'Donnell, Tom

    (Brazil, Russia, India and China) will end U.S. supremacy in the dollar based oil market? Lastly, weFrom Saudi Arabia to Venezuela: Energy Resources, Market Factors & ConflictsEnergy Resources, Market Factors & Conflicts Dr. Tom O'Donnell Friday, 12:00 ­ 2:48 PM Room 125, Mendenhall Laboratory

  5. Photon impact factor and k{sub T} factorization in the next-to-leading order

    SciTech Connect (OSTI)

    Ian Balitsky

    2012-12-01T23:59:59.000Z

    The photon impact factor for the BFKL pomeron is calculated in the next-to-leading order (NLO) approximation using the operator expansion in Wilson lines. The result is represented as a NLO k{sub T}-factorization formula for the structure functions of small-x deep inelastic scattering.

  6. Quantitative Finance To apear Efficient Factor GARCH Models and Factor-DCC Models

    E-Print Network [OSTI]

    Jegelka, Stefanie

    Quantitative Finance To apear Efficient Factor GARCH Models and Factor-DCC Models Kun Zhang KZHANG of Hong Kong Hong Kong Abstract We reveal that in the estimation of univariate GARCH or multivariate generalized or- thogonal GARCH (GO-GARCH) models, maximizing the likelihood is equivalent to making

  7. Organizational Culture andOrganizational Culture and Human Factors in HealthcareHuman Factors in Healthcare

    E-Print Network [OSTI]

    Organizational Culture andOrganizational Culture and Human Factors in HealthcareHuman Factors;TEAMWORK!TEAMWORK! #12;OverviewOverview ·· Organizational culture and adaptationOrganizational cultureKey Objectives ·· Compare error response in differentCompare error response in different organizational

  8. Form factors in finite volume I: form factor bootstrap and truncated conformal space

    E-Print Network [OSTI]

    B. Pozsgay; G. Takacs

    2007-07-02T23:59:59.000Z

    We describe the volume dependence of matrix elements of local fields to all orders in inverse powers of the volume (i.e. only neglecting contributions that decay exponentially with volume). Using the scaling Lee-Yang model and the Ising model in a magnetic field as testing ground, we compare them to matrix elements extracted in finite volume using truncated conformal space approach to exact form factors obtained using the bootstrap method. We obtain solid confirmation for the form factor bootstrap, which is different from all previously available tests in that it is a non-perturbative and direct comparison of exact form factors to multi-particle matrix elements of local operators, computed from the Hamiltonian formulation of the quantum field theory. We also demonstrate that combining form factor bootstrap and truncated conformal space is an effective method for evaluating finite volume form factors in integrable field theories over the whole range in volume.

  9. affecting critical factors: Topics by E-print Network

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

    social responsibility implementation: an emphasis on values 5 Factors affecting wild turkey distribution and numbers Texas A&M University - TxSpace Summary: FACTORS AFFECTING...

  10. Measured and Modeled Humidification Factors of Fresh Smoke Particles...

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

    Measured and Modeled Humidification Factors of Fresh Smoke Particles From Biomass Burning: Role of Inorganic Constituents. Measured and Modeled Humidification Factors of Fresh...

  11. annihilation factor analysis: Topics by E-print Network

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

    16 Correlated Bayesian Factor Analysis CiteSeer Summary: Factor analysis is a method in multivariate statistical analysis that can help scientists determine which variables to...

  12. Technology and Organizational Factors in the Notebook Industry Supply Chain

    E-Print Network [OSTI]

    Foster, William; Cheng, Zhang; Dedrick, Jason; Kraemer, Kenneth L

    2006-01-01T23:59:59.000Z

    Technical and Organizational Solutions to Supply Chain18 III. Organizational Factors and the Notebook Industry4: Technology and Organizational Factors in the Notebook

  13. Current advances in using neurotrophic factors to treat neurodegenerative disorders

    E-Print Network [OSTI]

    Weissmiller, April M; Wu, Chengbiao

    2012-01-01T23:59:59.000Z

    neurotrophic factors to treat neurodegenerative disorders.neurotrophic factors to treat neurodegenerative disordersCNS diseases are difficult to treat due to the Page 3 of 9

  14. DYNAMIC INTERACTION FACTORS FOR FLOATING PILE GROUPS

    E-Print Network [OSTI]

    Entekhabi, Dara

    DYNAMIC INTERACTION FACTORS FOR FLOATING PILE GROUPS By George Gazetas,1 Ke Fan,2 Amir Kaynia,3 at the head of each pile. These readily applicable graphs have been developed with a rigorous analytical- portional to depth) and three pile separation distances (3,5, and 10 pile-diamctcrs). A wide range of values

  15. Structure Functions, Form Factors, and Lattice QCD

    E-Print Network [OSTI]

    Walter Wilcox; B. Andersen-Pugh

    1993-12-07T23:59:59.000Z

    We present results towards the calculation of the pion electric form factor and structure function on a $16^3\\times 24$ lattice using charge overlap. By sacrificing Fourier transform information in two directions, it is seen that the longitudinal four point function can be extracted with reasonable error bars at low momentum.

  16. Federal Aviation Administration Human Factors Team

    E-Print Network [OSTI]

    Ladkin, Peter B.

    Federal Aviation Administration Human Factors Team Report on: The Interfaces Between Flightcrews Générale de l'Aviation Civile (France), Douglas Aircraft Company, Federal Aviation Administration, European was produced by a team of highly qualified individuals from the FAA and the European Joint Aviation Authorities

  17. Factored Language Models for Statistical Machine Translation

    E-Print Network [OSTI]

    Koehn, Philipp

    Factored Language Models for Statistical Machine Translation Amittai E. Axelrod TH E U N I V E R . . . . . . . . . . . . . . . . . . . . . 10 2.4.3 Log-Linear, Phrase-Based Translation Models . . . . . . . . . 11 3 Statistical Language S ITY OF E D I N B U R G H Master of Science by Research Institute for Communicating and Collaborative

  18. Factors Influencing Succession: Lessons from Large, Infrequent

    E-Print Network [OSTI]

    Turner, Monica G.

    intense disturbances of large and small extent. Key words: disturbance frequency; disturbance intensityFactors Influencing Succession: Lessons from Large, Infrequent Natural Disturbances Monica G ABSTRACT Disturbance events vary in intensity, size, and fre- quency, but few opportunities exist to study

  19. Cloud Controlling Factors --Low Clouds BJORN STEVENS,

    E-Print Network [OSTI]

    Stevens, Bjorn

    Cloud Controlling Factors -- Low Clouds BJORN STEVENS, Department of Atmospheric and Oceanic conspire to determine the statistics and cli- matology of layers of shallow (boundary layer) clouds of low-cloud control- ling processes are offered: these include renewing our focus on theory, model

  20. ASSESSING CAUSAL FACTORS IN INDIVIDUAL ROAD ACCIDENTS

    E-Print Network [OSTI]

    Minnesota, University of

    ASSESSING CAUSAL FACTORS IN INDIVIDUAL ROAD ACCIDENTS: COLLECTIVE RESPONSIBILITY IN FREEWAY REAR accident report: Happened on I-94 in downtown Minneapolis Happened during the afternoon peak period Vehicle" is a "condition or event" such that "had the condition or event been prevented...the accident would not occur

  1. Dense LU Factorization on Multicore Supercomputer Nodes

    SciTech Connect (OSTI)

    Lifflander, Jonathan [University of Illinois, Urbana-Champaign] [University of Illinois, Urbana-Champaign; Miller, Phil [University of Illinois, Urbana-Champaign] [University of Illinois, Urbana-Champaign; Venkataraman, Ramprasad [University of Illinois, Urbana-Champaign] [University of Illinois, Urbana-Champaign; Arya, Anshu [University of Illinois, Urbana-Champaign] [University of Illinois, Urbana-Champaign; Jones, Terry R [ORNL] [ORNL; Kale, Laxmikant V [University of Illinois, Urbana-Champaign] [University of Illinois, Urbana-Champaign

    2012-01-01T23:59:59.000Z

    Dense LU factorization is a prominent benchmark used to rank the performance of supercomputers. Many implementations, including the reference code HPL, use block-cyclic distributions of matrix blocks onto a two-dimensional process grid. The process grid dimensions drive a trade-off between communication and computation and are architecture- and implementation-sensitive. We show how the critical panel factorization steps can be made less communication-bound by overlapping asynchronous collectives for pivot identification and exchange with the computation of rank-k updates. By shifting this trade-off, a modified block-cyclic distribution can beneficially exploit more available parallelism on the critical path, and reduce panel factorization's memory hierarchy contention on now-ubiquitous multi-core architectures. The missed parallelism in traditional block-cyclic distributions arises because active panel factorization, triangular solves, and subsequent broadcasts are spread over single process columns or rows (respectively) of the process grid. Increasing one dimension of the process grid decreases the number of distinct processes in the other dimension. To increase parallelism in both dimensions, periodic 'rotation' is applied to the process grid to recover the row-parallelism lost by a tall process grid. During active panel factorization, rank-1 updates stream through memory with minimal reuse. In a column-major process grid, the performance of this access pattern degrades as too many streaming processors contend for access to memory. A block-cyclic mapping in the more popular row-major order does not encounter this problem, but consequently sacrifices node and network locality in the critical pivoting steps. We introduce 'striding' to vary between the two extremes of row- and column-major process grids. As a test-bed for further mapping experiments, we describe a dense LU implementation that allows a block distribution to be defined as a general function of block to processor. Other mappings can be tested with only small, local changes to the code.

  2. Nucleon and $?$ elastic and transition form factors

    E-Print Network [OSTI]

    Jorge Segovia; Ian C. Cloet; Craig D. Roberts; Sebastian M. Schmidt

    2014-09-03T23:59:59.000Z

    We compute nucleon and Delta elastic and transition form factors, and compare predictions made using a framework built upon a Faddeev equation kernel and interaction vertices that possess QCD-like momentum dependence with results obtained using a vector-vector contact-interaction. The comparison emphasises that experiment is sensitive to the momentum dependence of the running couplings and masses in the strong interaction sector of the Standard Model and highlights that the key to describing hadron properties is a veracious expression of dynamical chiral symmetry breaking in the bound-state problem. Amongst the results we describe, the following are of particular interest: $G_E^p(Q^2)/G_M^p(Q^2)$ possesses a zero at $Q^2=9.5GeV^2$; any change in the interaction which shifts a zero in the proton ratio to larger $Q^2$ relocates a zero in $G_E^n(Q^2)/G_M^n(Q^2)$ to smaller $Q^2$; and there is likely a value of momentum transfer above which $G_E^n>G_E^p$. Regarding the $\\Delta(1232)$-baryon, we find that, inter alia: the electric monopole form factor exhibits a zero; the electric quadrupole form factor is negative, large in magnitude, and sensitive to the nature and strength of correlations in the $\\Delta(1232)$ Faddeev amplitude; and the magnetic octupole form factor is negative so long as rest-frame P- and D-wave correlations are included. In connection with the N-to-Delta transition, the momentum-dependence of the magnetic transition form factor, $G_M^\\ast$, matches that of $G_M^n$ once the momentum transfer is high enough to pierce the meson-cloud; and the electric quadrupole ratio is a keen measure of diquark and orbital angular momentum correlations.

  3. Transcription factor-based biosensors for detecting dicarboxylic acids

    DOE Patents [OSTI]

    Dietrich, Jeffrey; Keasling, Jay

    2014-02-18T23:59:59.000Z

    The invention provides methods and compositions for detecting dicarboxylic acids using a transcription factor biosensor.

  4. Nucleon Axial Form Factor from Lattice QCD

    E-Print Network [OSTI]

    Liu, K F; Draper, T; Wu, J M; Wilcox, W

    1994-01-01T23:59:59.000Z

    Results for the isovector axial form factors of the proton from a lattice QCD calculation are presented for both point-split and local currents. They are obtained on a quenched $16^{3} \\times 24$ lattice at $\\beta= 6.0$ with Wilson fermions for a range of quark masses from strange to charm. We determine the finite lattice renormalization for both the local and point-split currents of heavy quarks. Results extrapolated to the chiral limit show that the $q^2$ dependence of the axial form factor agrees reasonably well with experiment. The axial coupling constant $g_A$ calculated for the local and the point-split currents is about 6\\% and 12\\% smaller than the experimental value respectively.

  5. Fully relativistic form factor for Thomson scattering

    SciTech Connect (OSTI)

    Palastro, J. P.; Ross, J. S.; Pollock, B.; Divol, L.; Froula, D. H.; Glenzer, S. H. [Lawrence Livermore National Laboratory, Livermore, California 94551 (United States)

    2010-03-15T23:59:59.000Z

    We derive a fully relativistic form factor for Thomson scattering in unmagnetized plasmas valid to all orders in the normalized electron velocity, beta->=v->/c. The form factor is compared to a previously derived expression where the lowest order electron velocity, beta->, corrections are included [J. Sheffield, Plasma Scattering of Electromagnetic Radiation (Academic Press, New York, 1975)]. The beta-> expansion approach is sufficient for electrostatic waves with small phase velocities such as ion-acoustic waves, but for electron-plasma waves the phase velocities can be near luminal. At high phase velocities, the electron motion acquires relativistic corrections including effective electron mass, relative motion of the electrons and electromagnetic wave, and polarization rotation. These relativistic corrections alter the scattered emission of thermal plasma waves, which manifest as changes in both the peak power and width of the observed Thomson-scattered spectra.

  6. Fermionic greybody factors in dilaton black holes

    E-Print Network [OSTI]

    Jahed Abedi; Hessamaddin Arfaei

    2014-09-17T23:59:59.000Z

    In this paper the question of emission of fermions in the process of dilaton black hole evolution and its characters for different dilaton coupling constants $\\alpha$ is studied. The main quantity of interest, the greybody factors are calculated both numerically and in analytical approximation. The dependence of rates of evaporation and behaviour on the dilaton coupling constant is analyzed. Having calculated the greybody factors we are able to address the question of the final fate of the dilaton black hole. For that we also need to make dynamical treatment of the solution by considering the backreaction which will show a crucial effect on the final result. We find a transition line in $(Q/M, \\alpha)$ plane that separates the two regimes for the fate of the black hole, decay regime and extremal regime. In the decay regime the black hole completely evaporates, while in the extremal regime the black hole approaches the extremal limit by radiation and becomes stable.

  7. Human Factors Aspects of Advanced Process Control

    E-Print Network [OSTI]

    Shaw, J. A.

    HUMAN FACTORS ASPECTS OF ADVANCED PRO?CESS CONTROL John A. Shaw Combustion Engineering Taylor Instrument Division Rochester, New York ABSTRACT Energy conservation practices, such as heat recovery and integration, require that many... chemical and related processes use advanced control systems. Many of the more advanced process control strategies and algorithms can cause operator confusion, leading to incorrect operator actions and negating the advantages of the advanced control...

  8. $?$ and $?'$ transition form factors from Padé approximants

    E-Print Network [OSTI]

    Pablo Sanchez-Puertas; Pere Masjuan

    2014-11-17T23:59:59.000Z

    We employ a systematic and model-independent method to extract, from space- and time-like data, the $\\eta$ and $\\eta'$ transition form factors (TFFs) obtaining the most precise determination for their low-energy parameters and discuss the $\\Gamma_{\\eta\\rightarrow\\gamma\\gamma}$ impact on them. Using TFF data alone, we also extract the $\\eta-\\eta'$ mixing parameters, which are compatible to those obtained from more sophisticated and input-demanding procedures.

  9. Measurement of the ??*?? and ??*??' transition form factors

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

    del Amo Sanchez, P.; Lees, J. P.; Poireau, V.; Prencipe, E.; Tisserand, V.; Garra Tico, J.; Grauges, E.; Martinelli, M.; Milanes, D. A.; Palano, A.; Pappagallo, M.; Eigen, G.; Stugu, B.; Sun, L.; Brown, D. N.; Kerth, L. T.; Kolomensky, Yu.?G.; Lynch, G.; Osipenkov, I. L.; Koch, H.; Schroeder, T.; Asgeirsson, D. J.; Hearty, C.; Mattison, T. S.; McKenna, J. A.; Khan, A.; Blinov, V. E.; Botov, A. A.; Buzykaev, A. R.; Druzhinin, V. P.; Golubev, V. B.; Kravchenko, E. A.; Onuchin, A. P.; Serednyakov, S. I.; Skovpen, Yu.?I.; Solodov, E. P.; Todyshev, K.?Yu.; Yushkov, A. N.; Bondioli, M.; Curry, S.; Kirkby, D.; Lankford, A. J.; Mandelkern, M.; Martin, E. C.; Stoker, D. P.; Atmacan, H.; Gary, J. W.; Liu, F.; Long, O.; Vitug, G. M.; Campagnari, C.; Hong, T. M.; Kovalskyi, D.; Richman, J. D.; West, C. A.; Eisner, A. M.; Heusch, C. A.; Kroseberg, J.; Lockman, W. S.; Martinez, A. J.; Schalk, T.; Schumm, B. A.; Seiden, A.; Winstrom, L. O.; Cheng, C. H.; Doll, D. A.; Echenard, B.; Hitlin, D. G.; Ongmongkolkul, P.; Porter, F. C.; Rakitin, A. Y.; Andreassen, R.; Dubrovin, M. S.; Meadows, B. T.; Sokoloff, M. D.; Bloom, P. C.; Ford, W. T.; Gaz, A.; Nagel, M.; Nauenberg, U.; Smith, J. G.; Wagner, S. R.; Ayad, R.; Toki, W. H.; Jasper, H.; Petzold, A.; Spaan, B.; Kobel, M. J.; Schubert, K. R.; Schwierz, R.; Bernard, D.; Verderi, M.; Clark, P. J.; Playfer, S.; Watson, J. E.; Andreotti, M.; Bettoni, D.; Bozzi, C.; Calabrese, R.; Cecchi, A.; Cibinetto, G.; Fioravanti, E.; Franchini, P.; Garzia, I.; Luppi, E.; Munerato, M.; Negrini, M.; Petrella, A.; Piemontese, L.; Baldini-Ferroli, R.; Calcaterra, A.; de Sangro, R.; Finocchiaro, G.; Nicolaci, M.; Pacetti, S.; Patteri, P.; Peruzzi, I. M.; Piccolo, M.; Rama, M.; Zallo, A.; Contri, R.; Guido, E.; Lo Vetere, M.; Monge, M. R.; Passaggio, S.; Patrignani, C.; Robutti, E.; Bhuyan, B.; Prasad, V.; Lee, C. L.; Morii, M.; Edwards, A. J.; Adametz, A.; Marks, J.; Uwer, U.; Bernlochner, F. U.; Ebert, M.; Lacker, H. M.; Lueck, T.; Volk, A.; Dauncey, P. D.; Tibbetts, M.; Behera, P. K.; Mallik, U.; Chen, C.; Cochran, J.; Crawley, H. B.; Meyer, W. T.; Prell, S.; Rosenberg, E. I.; Rubin, A. E.; Gritsan, A. V.; Guo, Z. J.; Arnaud, N.; Davier, M.; Derkach, D.; Firmino da Costa, J.; Grosdidier, G.; Le Diberder, F.; Lutz, A. M.; Malaescu, B.; Perez, A.; Roudeau, P.; Schune, M. H.; Serrano, J.; Sordini, V.; Stocchi, A.; Wang, L.; Wormser, G.; Lange, D. J.; Wright, D. M.; Bingham, I.; Chavez, C. A.; Coleman, J. P.; Fry, J. R.; Gabathuler, E.; Hutchcroft, D. E.; Payne, D. J.; Touramanis, C.; Bevan, A. J.; Di Lodovico, F.; Sacco, R.; Sigamani, M.; Cowan, G.; Paramesvaran, S.; Wren, A. C.; Brown, D. N.; Davis, C. L.; Denig, A. G.; Fritsch, M.; Gradl, W.; Hafner, A.; Alwyn, K. E.; Bailey, D.; Barlow, R. J.; Jackson, G.; Lafferty, G. D.; Anderson, J.; Cenci, R.; Jawahery, A.; Roberts, D. A.; Simi, G.; Tuggle, J. M.; Dallapiccola, C.; Salvati, E.; Cowan, R.; Dujmic, D.; Sciolla, G.; Zhao, M.; Lindemann, D.; Patel, P. M.; Robertson, S. H.; Schram, M.; Biassoni, P.; Lazzaro, A.; Lombardo, V.; Palombo, F.; Stracka, S.; Cremaldi, L.; Godang, R.; Kroeger, R.; Sonnek, P.; Summers, D. J.; Nguyen, X.; Simard, M.; Taras, P.; De Nardo, G.; Monorchio, D.; Onorato, G.; Sciacca, C.; Raven, G.; Snoek, H. L.; Jessop, C. P.; Knoepfel, K. J.; LoSecco, J. M.; Wang, W. F.; Corwin, L. A.; Honscheid, K.; Kass, R.; Blount, N. L.; Brau, J.; Frey, R.; Igonkina, O.; Kolb, J. A.; Rahmat, R.; Sinev, N. B.; Strom, D.; Strube, J.; Torrence, E.; Castelli, G.; Feltresi, E.; Gagliardi, N.; Margoni, M.; Morandin, M.; Posocco, M.; Rotondo, M.; Simonetto, F.; Stroili, R.; Ben-Haim, E.; Bomben, M.; Bonneaud, G. R.; Briand, H.; Calderini, G.; Chauveau, J.; Hamon, O.; Leruste, Ph.; Marchiori, G.; Ocariz, J.; Prendki, J.; Sitt, S.; Biasini, M.; Manoni, E.; Rossi, A.; Angelini, C.; Batignani, G.; Bettarini, S.; Carpinelli, M.; Casarosa, G.; Cervelli, A.; Forti, F.; Giorgi, M. A.; Lusiani, A.; Neri, N.; Paoloni, E.; Rizzo, G.; Walsh, J. J.; Lopes Pegna, D.; Lu, C.; Olsen, J.; Smith, A. J. S.; Telnov, A. V.; Anulli, F.; Baracchini, E.; Cavoto, G.; Faccini, R.; Ferrarotto, F.; Ferroni, F.; Gaspero, M.; Li Gioi, L.; Mazzoni, M. A.; Piredda, G.; Renga, F.; Buenger, C.; Hartmann, T.; Leddig, T.; Schröder, H.; Waldi, R.; Adye, T.; Olaiya, E. O.; Wilson, F. F.; Emery, S.; Hamel de Monchenault, G.; Vasseur, G.; Yèche, Ch.; Allen, M. T.; Aston, D.; Bard, D. J.; Bartoldus, R.; Benitez, J. F.; Cartaro, C.; Convery, M. R.; Dorfan, J.; Dubois-Felsmann, G. P.; Dunwoodie, W.; Field, R. C.; Franco Sevilla, M.; Fulsom, B. G.; Gabareen, A. M.; Graham, M. T.; Grenier, P.; Hast, C.; Innes, W. R.; Kelsey, M. H.; Kim, H.; Kim, P.; Kocian, M. L.; Leith, D. W. G. S.; Lewis, P.; Li, S.; Lindquist, B.; Luitz, S.; Luth, V.; Lynch, H. L.

    2011-09-01T23:59:59.000Z

    We study the reactions e?e??e?e??(') in the single-tag mode and measure the ??*??(') transition form factors in the momentum-transfer range from 4 to 40 GeV². The analysis is based on 469 fb?¹ of integrated luminosity collected at PEP-II with the BABAR detector at e?e? center-of-mass energies near 10.6 GeV.

  10. Scalable tensor factorizations with missing data.

    SciTech Connect (OSTI)

    Morup, Morten (Technical University of Denmark); Dunlavy, Daniel M.; Acar, Evrim (Turkish National Research Institute of Electronics and Cryptology); Kolda, Tamara Gibson

    2010-04-01T23:59:59.000Z

    The problem of missing data is ubiquitous in domains such as biomedical signal processing, network traffic analysis, bibliometrics, social network analysis, chemometrics, computer vision, and communication networks|all domains in which data collection is subject to occasional errors. Moreover, these data sets can be quite large and have more than two axes of variation, e.g., sender, receiver, time. Many applications in those domains aim to capture the underlying latent structure of the data; in other words, they need to factorize data sets with missing entries. If we cannot address the problem of missing data, many important data sets will be discarded or improperly analyzed. Therefore, we need a robust and scalable approach for factorizing multi-way arrays (i.e., tensors) in the presence of missing data. We focus on one of the most well-known tensor factorizations, CANDECOMP/PARAFAC (CP), and formulate the CP model as a weighted least squares problem that models only the known entries. We develop an algorithm called CP-WOPT (CP Weighted OPTimization) using a first-order optimization approach to solve the weighted least squares problem. Based on extensive numerical experiments, our algorithm is shown to successfully factor tensors with noise and up to 70% missing data. Moreover, our approach is significantly faster than the leading alternative and scales to larger problems. To show the real-world usefulness of CP-WOPT, we illustrate its applicability on a novel EEG (electroencephalogram) application where missing data is frequently encountered due to disconnections of electrodes.

  11. Heavy to light baryon transition form factors

    SciTech Connect (OSTI)

    Guo, X. [Centro Brasileiro de Pesquisas Fisicas, Rio de Janeiro, Brasil] [Centro Brasileiro de Pesquisas Fisicas, Rio de Janeiro, Brasil; [Institute of High Energy Physics, Academia Sinica, Beijing 100039, People`s Republic of (China); Huang, T. [CCAST (World Laboratory) P.O. Box 8730, Beijing 100080, People`s Republic of (China)] [CCAST (World Laboratory) P.O. Box 8730, Beijing 100080, People`s Republic of (China); [Institute of High Energy Physics, Academia Sinica, Beijing 100039, People`s Republic of (China); Li, Z. [Institute of High Energy Physics, Academia Sinica, Beijing 100039, People`s Republic of (China)] [Institute of High Energy Physics, Academia Sinica, Beijing 100039, People`s Republic of (China)

    1996-05-01T23:59:59.000Z

    Recently, Stech found form factor relations for heavy to light transitions based on two simple dynamical assumptions for a spectator particle. In this paper we generalize his approach to the case of baryons and find that for {Lambda}{sub {ital Q}}{r_arrow}{Lambda} ({ital Q}={ital b} or {ital c}) only one independent form factor remains in the limit {ital m}{sub {ital Q}}{r_arrow}{infinity}. Furthermore, combining with the model of Guo and Kroll we determine both of the two form factors for {Lambda}{sub {ital Q}}{r_arrow}{Lambda} in the heavy quark limit. The results are applied to {Lambda}{sub {ital b}}{r_arrow}{Lambda}+{ital J}/{psi} which is not clarified both theoretically and experimentally. It is found that the branching ratio of {Lambda}{sub {ital b}}{r_arrow}{Lambda}+{ital J}/{psi} is of order 10{sup {minus}5}. {copyright} {ital 1996 The American Physical Society.}

  12. Scalable tensor factorizations with incomplete data.

    SciTech Connect (OSTI)

    Morup, Morten (Technical University of Denmark); Dunlavy, Daniel M. (Sandia National Laboratories, Albuquerque, NM); Acar, Evrim (Information Technologies Institute, Turkey); Kolda, Tamara Gibson

    2010-07-01T23:59:59.000Z

    The problem of incomplete data - i.e., data with missing or unknown values - in multi-way arrays is ubiquitous in biomedical signal processing, network traffic analysis, bibliometrics, social network analysis, chemometrics, computer vision, communication networks, etc. We consider the problem of how to factorize data sets with missing values with the goal of capturing the underlying latent structure of the data and possibly reconstructing missing values (i.e., tensor completion). We focus on one of the most well-known tensor factorizations that captures multi-linear structure, CANDECOMP/PARAFAC (CP). In the presence of missing data, CP can be formulated as a weighted least squares problem that models only the known entries. We develop an algorithm called CP-WOPT (CP Weighted OPTimization) that uses a first-order optimization approach to solve the weighted least squares problem. Based on extensive numerical experiments, our algorithm is shown to successfully factorize tensors with noise and up to 99% missing data. A unique aspect of our approach is that it scales to sparse large-scale data, e.g., 1000 x 1000 x 1000 with five million known entries (0.5% dense). We further demonstrate the usefulness of CP-WOPT on two real-world applications: a novel EEG (electroencephalogram) application where missing data is frequently encountered due to disconnections of electrodes and the problem of modeling computer network traffic where data may be absent due to the expense of the data collection process.

  13. Human factors engineers as change agents

    SciTech Connect (OSTI)

    Hallbert, B.P.; Harbour, G.L.; Caccamise, D.J.; Francis, L.C.

    1992-01-01T23:59:59.000Z

    This presentation describes a case study and the lessons learned when a Human Factors Engineering (HFE) Department was enlisted as technical experts but gradually assumed a much larger role as change agents in transforming outdated job practices into streamlined processes that promoted a safety culture. At Rocky Flats Nuclear Weapons processing plant in Colorado, a workforce of over 7000 people support or directly operate a myriad of processes that range from laboratory analysis to typical foundry activities, greatly complicated by the presence of fissile, radioactive materials. Safe handling of these materials was governed by detailed discussions contained in Nuclear Material Safety limits (NMSLs). In spite of this rather extensive documentation, operators were committing an unacceptable number of safety infractions. Analysis revealed NMSLs were difficult to comprehend and not practical for use in operational settings. New job performance aids, called Criticality Safety Operating Limits (CSOLs) were developed to solve these problems. However, the solution involved more than applying good human factors principles to this job-aid. Following the classic Lewin Force Field Model of Change, safety infractions made change imperative; the forces operating against it were tradition, and perceived irrelevance of new expertise. Historically, Criticality Engineering dictated safety limits to Operations. In the course of Human Factoring'' the CSOLs, the HFE, through an iterative process, became the team integrator of this development process. Using Quality concepts such as buy-in, empowerment, and ownership, HFE was able to instantiate and receive enthusiastic acceptance of their products.

  14. Effects of friction factor and slip factor on the performance of a centrifugal slurry pump

    E-Print Network [OSTI]

    Sheth, Ketankumar Kantilal

    1985-01-01T23:59:59.000Z

    in dredging operations, chemical plants, power plants, and for handling coal slurries. For higher discharge pressure requirements, centrifugal slurry pumps are operated in series with up to six stages, 800 horsepower on each stage, and discharge pressures...EFFECTS OF FRICTION FACTOR AND SLIP FACTOR ON THE PERFORMANCE OF A CENTRIFUGAL SLURRY PUMP A Thesis by KETANKUMAR KANTILAL SHETH Submitted to the Graduate College of Texas ASM University in partial fulfillment of the requirements...

  15. 3.5. EFFICIENCY FACTORS 63 3.5 Efficiency factors

    E-Print Network [OSTI]

    Bailey, R. A.

    3.5. EFFICIENCY FACTORS 63 3.5 Efficiency factors For comparison we consider a complete) and the variance of the estimator of x is (x L-x)2 CBD, which is equal to r-1x x2 CBD. Definition The efficiency to a complete-block design with variance 2 CBD and the same replication is x x rx L-x 2 CBD 2 and the efficiency

  16. Prime number generation and factor elimination

    E-Print Network [OSTI]

    Vineet Kumar

    2014-10-06T23:59:59.000Z

    We have presented a multivariate polynomial function termed as factor elimination function,by which, we can generate prime numbers. This function's mapping behavior can explain the irregularities in the occurrence of prime numbers on the number line. Generally the different categories of prime numbers found till date, satisfy the form of this function. We present some absolute and probabilistic conditions for the primality of the number generated by this method. This function is capable of leading to highly efficient algorithms for generating prime numbers.

  17. Lorentz Coherence and the Proton Form Factor

    E-Print Network [OSTI]

    Kim, Young S

    2015-01-01T23:59:59.000Z

    The dipole cutoff behavior for the proton form factor has been and still is one of the major issues in high-energy physics. It is shown that this dipole behavior comes from the coherence between the Lorentz contraction of the proton size and the decreasing wavelength of the incoming photon signal. The contraction rates are the same for both cases. This form of coherence is studied also in the momentum-energy space. The coherence effect in this space can be explained in terms of two overlapping wave functions.

  18. Unit Conversion Factors Quantity Equivalent Values

    E-Print Network [OSTI]

    Ashurst, W. Robert

    Unit Conversion Factors Quantity Equivalent Values Mass 1 kg = 1000 g = 0.001 metric ton = 2.921 inHg at 0 C Energy 1 J = 1 N·m = 107 ergs = 107 dyne·cm = 2.778×10-7 kW·h 1 J = 0.23901 cal = 0·R 10.73 psia·ft3 lbmol·R 62.36 liter·torr mol·K 0.7302 ft3·atm lbmol·R Temperature Conversions: T

  19. Lorentz Coherence and the Proton Form Factor

    E-Print Network [OSTI]

    Young S. Kim

    2015-02-28T23:59:59.000Z

    The dipole cutoff behavior for the proton form factor has been and still is one of the major issues in high-energy physics. It is shown that this dipole behavior comes from the coherence between the Lorentz contraction of the proton size and the decreasing wavelength of the incoming photon signal. The contraction rates are the same for both cases. This form of coherence is studied also in the momentum-energy space. The coherence effect in this space can be explained in terms of two overlapping wave functions.

  20. Factors for design of dips for roadways 

    E-Print Network [OSTI]

    McCasland, William Richard

    1957-01-01T23:59:59.000Z

    limit is sub]ect to mot1on which may cause considerable discomfort to be experienced by the oocupants. If a dip is particularly critical, the vehicle may even incur damages. The most important consideration, however, 1s the fact that the driver may... lose control of the vehicle momentarily and be involved in a traffic accident. These three factors indicate the need for all dips in roadways to be nrop- erly designed, whether they are to be temporary or oermanent. The use of dips as speed checks...

  1. Factors for design of dips for roadways

    E-Print Network [OSTI]

    McCasland, William Richard

    1957-01-01T23:59:59.000Z

    limit is sub]ect to mot1on which may cause considerable discomfort to be experienced by the oocupants. If a dip is particularly critical, the vehicle may even incur damages. The most important consideration, however, 1s the fact that the driver may... lose control of the vehicle momentarily and be involved in a traffic accident. These three factors indicate the need for all dips in roadways to be nrop- erly designed, whether they are to be temporary or oermanent. The use of dips as speed checks...

  2. Factors Affecting Auction Market Operating Costs.

    E-Print Network [OSTI]

    Wootan, Charley V.; McNeely, John G.

    1966-01-01T23:59:59.000Z

    Factors Affecting Auction Market Operating Costs Texas Summary and Conclusions T THE TIME THE DATA for this study were collected A there were 178 livestock auctions operating in Texas; 140 were included in this analysis. They ranyed in size... from just over 5,000 animal units per year to alinost 350,000. It has been sl~own that opera- - tional efficiency, measured in terms of average cost per unit marketed, increases directly with firm size and that efficiency gains were most marked...

  3. Dynamic structure factors of a dense mixture

    E-Print Network [OSTI]

    Supurna Sinha

    2005-05-22T23:59:59.000Z

    We compute the dynamic structure factors of a dense binary liquid mixture. These describe dynamics on molecular length scales, where structural relaxation is important. We find that the presence of a few large particles in a dense fluid of small particles slows down the dynamics considerably. We also observe a deep narrowing of the spectrum for a disordered mixture composed of a nearly equal packing of the two species. In contrast, a few small particles diffuse easily in the background of a dense fluid of large particles. We expect our results to describe neutron scattering from a dense mixture.

  4. Factor CO2 | 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 SiteofEvaluating A PotentialJumpGerman AerospaceEfficiency Incentives andFVE BS sroFaconFactor

  5. EcoFactor Inc | 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 beingZealand JumpConceptual Model,DOEHazel Crest, Illinois: EnergyEastport, Maine:EauEcoFactor Inc Jump to:

  6. Human factors engineering program review model

    SciTech Connect (OSTI)

    Not Available

    1994-07-01T23:59:59.000Z

    The staff of the Nuclear Regulatory Commission is performing nuclear power plant design certification reviews based on a design process plan that describes the human factors engineering (HFE) program elements that are necessary and sufficient to develop an acceptable detailed design specification and an acceptable implemented design. There are two principal reasons for this approach. First, the initial design certification applications submitted for staff review did not include detailed design information. Second, since human performance literature and industry experiences have shown that many significant human factors issues arise early in the design process, review of the design process activities and results is important to the evaluation of an overall design. However, current regulations and guidance documents do not address the criteria for design process review. Therefore, the HFE Program Review Model (HFE PRM) was developed as a basis for performing design certification reviews that include design process evaluations as well as review of the final design. A central tenet of the HFE PRM is that the HFE aspects of the plant should be developed, designed, and evaluated on the basis of a structured top-down system analysis using accepted HFE principles. The HFE PRM consists of ten component elements. Each element in divided into four sections: Background, Objective, Applicant Submittals, and Review Criteria. This report describes the development of the HFE PRM and gives a detailed description of each HFE review element.

  7. Helium Compton Form Factor Measurements at CLAS

    SciTech Connect (OSTI)

    Voutier, Eric J.-M. [Laboratoire de Physique Subatomique et Cosmologie

    2013-07-01T23:59:59.000Z

    The distribution of the parton content of nuclei, as encoded via the generalized parton distributions (GPDs), can be accessed via the deeply virtual Compton scattering (DVCS) process contributing to the cross section for leptoproduction of real photons. Similarly to the scattering of light by a material, DVCS provides information about the dynamics and the spatial structure of hadrons. The sensitivity of this process to the lepton beam polarization allows to single-out the DVCS amplitude in terms of Compton form factors that contain GPDs information. The beam spin asymmetry of the $^4$He($\\vec {\\mathrm e}$,e$' \\gamma ^4$He) process was measured in the experimental Hall B of the Jefferson Laboratory to extract the real and imaginary parts of the twist-2 Compton form factor of the $^4$He nucleus. The experimental results reported here demonstrate the relevance of this method for such a goal, and suggest the dominance of the Bethe-Heitler amplitude to the unpolarized process in the kinematic range explored by the experiment.

  8. Factors that influence follow-up after an abnormal mammogram 

    E-Print Network [OSTI]

    Copeland, Valerie Anne

    2009-05-15T23:59:59.000Z

    The focus of this study was to explore women’s experiences with follow-up after an abnormal mammogram, and factors that influence follow-up. Factors, including health status, found in the cancer screening and treatment ...

  9. analyzing sociodemographic factors: Topics by E-print Network

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

    3 He(e; e 0 n)scattering J, Arizona, USA k Dept. of Physics, University of Zagreb, Croatia Abstract The charge form factor factor, FinalStateInteraction PACS: 21.45.+v,...

  10. affect postprandial factor: Topics by E-print Network

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

    may influence the decision Cheng, Yvonne 2011-01-01 3 Factors affecting wild turkey distribution and numbers Texas A&M University - TxSpace Summary: FACTORS AFFECTING...

  11. Factors Inhibiting Personal Growth When Teaching Academically Diverse Classes

    E-Print Network [OSTI]

    Lenz, B. Keith; Melvin, Jeff; Kissam, Brenda; Bulgren, Janis; Roth, Janet

    1992-08-01T23:59:59.000Z

    This study seeks to identify the factors that inhibit personal growth in teaching as teachers work to meet the needs of all students in academically diverse groups of learners. To identify these factors, researchers worked ...

  12. Dispersion modeling for prediction of emission factors for cattle feedyards

    E-Print Network [OSTI]

    Parnell, Sarah Elizabeth

    1994-01-01T23:59:59.000Z

    of state air pollution regulatory agencies will require accurate EPA AP-42 emission factors. A protocol was developed so that accurate emission factors can be determined using both source sampling data and dispersion modeling. In this study, an emission...

  13. EVALUATING NATIONAL ENVIRONMENTAL SUSTAINABILITY: PERFORMANCE MEASURES AND INFLUENTIAL FACTORS FOR

    E-Print Network [OSTI]

    development, industrial structure, energy prices, environmental governance, pollution abatement and control, environmental governance, and energy prices are major influential factors, with energy prices the most important components factor analysis to help build subindices measuring waste and pollution, sustainable energy

  14. New Blind Signatures Equivalent to Factorization (Extended Abstract)

    E-Print Network [OSTI]

    Pointcheval, David

    New Blind Signatures Equivalent to Factorization (Extended Abstract) David Pointcheval Jacques Stern Abstract In this paper, we present new blind signature schemes based on the factorization problem. They are the first blind sig- nature schemes proved secure relatively to factorization. By security, we mean

  15. REALIZING TWO-FACTOR AUTHENTICATION FOR THE BITCOIN PROTOCOL

    E-Print Network [OSTI]

    REALIZING TWO-FACTOR AUTHENTICATION FOR THE BITCOIN PROTOCOL Christopher Mann and Daniel Loebenberger 15 August 2014 Abstract. We show how to realize two-factor authentication for a Bitcoin wal- let a prototypic implementation of a Bitcoin wallet that offers both: two-factor authentication and verification

  16. SUCCESS FACTORS IN INFORMATION SECURITY IMPLEMENTATION IN ORGANIZATIONS

    E-Print Network [OSTI]

    Williamson, John

    SUCCESS FACTORS IN INFORMATION SECURITY IMPLEMENTATION IN ORGANIZATIONS Maryam Al-Awadi University This paper will explore and identify success factors related to the implementation of information security was to identify those factors required to ensure successful implementation of information security, particularly

  17. Human Factors Aspects of Power System Flow Animation

    E-Print Network [OSTI]

    is to present the results of human factors experiments looking at the power system flow animation. IIHuman Factors Aspects of Power System Flow Animation Douglas A. Wiegmann, Gavin R. Essenberg experimental results associated with human factors aspects of using animation to display electric power system

  18. Factors Contributing to Ideal Instructional Interactivity Michael Yacci

    E-Print Network [OSTI]

    Yacci, Michael

    Factors Contributing to Ideal Instructional Interactivity Michael Yacci Paul Hyman Information are the factors that contribute to "ideal" instructional interactivity? In this study, subjects observed different and paralanguage. Introduction The purpose of this project was to determine factors that contribute to an "ideal

  19. Commissioning of output factors for uniform scanning proton beams

    SciTech Connect (OSTI)

    Zheng Yuanshui; Ramirez, Eric; Mascia, Anthony; Ding Xiaoning; Okoth, Benny; Zeidan, Omar; Hsi Wen; Harris, Ben; Schreuder, Andries N.; Keole, Sameer [ProCure Proton Therapy Center, 5901 West Memorial Road, Oklahoma City, Oklahoma 73142 (United States); ProCure Treatment Centers, 420 North Walnut Street, Bloomington, Indiana 47404 (United States); ProCure Proton Therapy Center, 5901 West Memorial Road, Oklahoma City, Oklahoma 73142 (United States)

    2011-04-15T23:59:59.000Z

    Purpose: Current commercial treatment planning systems are not able to accurately predict output factors and calculate monitor units for proton fields. Patient-specific field output factors are thus determined by either measurements or empirical modeling based on commissioning data. The objective of this study is to commission output factors for uniform scanning beams utilized at the ProCure proton therapy centers. Methods: Using water phantoms and a plane parallel ionization chamber, the authors first measured output factors with a fixed 10 cm diameter aperture as a function of proton range and modulation width for clinically available proton beams with ranges between 4 and 31.5 cm and modulation widths between 2 and 15 cm. The authors then measured the output factor as a function of collimated field size at various calibration depths for proton beams of various ranges and modulation widths. The authors further examined the dependence of the output factor on the scanning area (i.e., uncollimated proton field), snout position, and phantom material. An empirical model was developed to calculate the output factor for patient-specific fields and the model-predicted output factors were compared to measurements. Results: The output factor increased with proton range and field size, and decreased with modulation width. The scanning area and snout position have a small but non-negligible effect on the output factors. The predicted output factors based on the empirical modeling agreed within 2% of measurements for all prostate treatment fields and within 3% for 98.5% of all treatment fields. Conclusions: Comprehensive measurements at a large subset of available beam conditions are needed to commission output factors for proton therapy beams. The empirical modeling agrees well with the measured output factor data. This investigation indicates that it is possible to accurately predict output factors and thus eliminate or reduce time-consuming patient-specific output measurements for proton treatments.

  20. Fractionation studies on the unidentified growth factor(s) in distillers dried solubles

    E-Print Network [OSTI]

    Dannenburg, Warren Nathaniel

    1955-01-01T23:59:59.000Z

    ried solubles oan be preoipitate4 froa volu- tion with baaio lea4 acetate and tuagstic aoid, but SA ethyl alcohol does not precipitate the factor, In these axperiaents, vitaain Si~ was not found to be i4entioal with the factor extracted bg netlg... t iii Jrieil; ue j ~ out llut in vrrr un ll , ri, ', I'ei l' . r. vii. , t . . ' CJ, cuti et Jl ~ ( r r) u, , rr li- . . I t I'J urrr sa . r 166 ur. . lxrli J . . eal in a gui'll'ieu rrrtlun arrJ u ucrV6J t. rt 1 i:: re, uri 6 Obt Jiired, rit. r C...

  1. Chemical factors that control lignin polymerization

    SciTech Connect (OSTI)

    Sangha, Amandeep K [ORNL] [ORNL; Davison, Brian H [ORNL] [ORNL; Standaert, Robert F [ORNL] [ORNL; Davis, Dr. Mark F. [National Renewable Energy Laboratory (NREL)] [National Renewable Energy Laboratory (NREL); Smith, Jeremy C [ORNL] [ORNL; Parks, Jerry M [ORNL] [ORNL

    2014-01-01T23:59:59.000Z

    Lignin is a complex, branched polymer that reinforces plant tissue. Understanding the factors that govern lignin structure is of central importance to the development of technologies for converting lignocellulosic biomass into fuels because lignin imparts resistance to chemical, enzymatic and mechanical deconstruction. Lignin is formed by enzymatic oxidation of phenolic monomers (monolignols) of three main types, guaiacyl (G), syringyl (S) and p- hydroxyphenyl (H). It is known that increasing the relative abundance of H subunits results in lower molecular-weight lignin polymers, and hence more easily deconstructed biomass, but it is not known why. Here, we report an analysis of frontier molecular orbitals in mono-, di- and trilignols, calculated using density functional theory, which points to a requirement of strong p- electron density on the reacting phenolic oxygen atom of the neutral precursor for enzymatic oxidation to occur. This model is consistent with a proton-coupled electron transfer (PCET) mechanism and for the first time explains why H subunits in certain linkages ( - or -5) react poorly and tend to cap the polymer. In general, -5 linkages with either a G or H terminus are predicted to inhibit elongation. More broadly, the model correctly accounts for the reactivity of the phenolic groups in a diverse set of dilignols comprising H and G subunits. Thus, we provide a coherent framework for understanding the propensity toward growth or termination of different terminal subunits in lignin.

  2. A review of electrochromic window performance factors

    SciTech Connect (OSTI)

    Selkowitz, S.E.; Rubin, M.; Lee, E.S.; Sullivan, R.; Finlayson, E.; Hopkins, D.

    1994-04-01T23:59:59.000Z

    The performance factors which will influence the market acceptance of electrochromic windows are reviewed. A set of data representing the optical properties of existing and foreseeable electrochromic window devices was generated. The issue of reflective versus absorbing electrochromics was explored. This data was used in the DOE 2.1 building energy model to calculate the expected energy savings compared to conventional glazings. The effects of several different control strategies were tested. Significant energy and peak electric demand benefits were obtained for some electrochromic types. Use of predictive control algorithms to optimize cooling control may result in greater energy savings. Initial economic results considering annual savings, cooling equipment cost savings, and electrochromic window costs are presented. Calculations of thermal and visual comfort show additional benefits from electrochromics but more work is needed to quantify their importance. The design freedom and aesthetic possibilities of these dynamic glazings should provide additional market benefits, but their impact is difficult to assess at this time. Ultimately, a full assessment of the market viability of electrochromics must consider the impacts of all of these issues.

  3. Human Factors Aspects of Operating Small Reactors

    SciTech Connect (OSTI)

    OHara, J.M.; Higgins, J.; Deem, R. (BNL); Xing, J.; DAgostino, A. (NRC)

    2010-11-07T23:59:59.000Z

    The nuclear-power community has reached the stage of proposing advanced reactor designs to support power generation for decades to come. They are considering small modular reactors (SMRs) as one approach to meet these energy needs. While the power output of individual reactor modules is relatively small, they can be grouped to produce reactor sites with different outputs. Also, they can be designed to generate hydrogen, or to process heat. Many characteristics of SMRs are quite different from those of current plants, and so may require a concept of operations (ConOps) that also is different. The U.S. Nuclear Regulatory Commission (NRC) has begun examining the human factors engineering- (HFE) and ConOps- aspects of SMRs; if needed, they will formulate guidance to support SMR licensing reviews. We developed a ConOps model, consisting of the following dimensions: Plant mission; roles and responsibilities of all agents; staffing, qualifications, and training; management of normal operations; management of off-normal conditions and emergencies; and, management of maintenance and modifications. We are reviewing information on SMR design to obtain data about each of these dimensions, and have identified several preliminary issues. In addition, we are obtaining operations-related information from other types of multi-module systems, such as refineries, to identify lessons learned from their experience. Here, we describe the project's methodology and our preliminary findings.

  4. Atrial natriuretic factor increases vascular permeability

    SciTech Connect (OSTI)

    Lockette, W.; Brennaman, B. (Wayne State Univ. School of Medicine, Detroit, MI (USA))

    1990-12-01T23:59:59.000Z

    An increase in central blood volume in microgravity may result in increased plasma levels of atrial natriuretic factor (ANF). Since elevations in plasma ANF are found in clinical syndromes associated with edema, and since space motion sickness induced by microgravity is associated with an increase in central blood volume and facial edema, we determined whether ANF increases capillary permeability to plasma protein. Conscious, bilaterally nephrectomized male rats were infused with either saline, ANF + saline, or hexamethonium + saline over 2 h following bolus injections of 125I-albumin and 14C-dextran of similar molecular size. Blood pressure was monitored and serial determinations of hematocrits were made. Animals infused with 1.0 micrograms.kg-1.min-1 ANF had significantly higher hematocrits than animals infused with saline vehicle. Infusion of ANF increased the extravasation of 125I-albumin, but not 14C-dextran from the intravascular compartment. ANF also induced a depressor response in rats, but the change in blood pressure did not account for changes in capillary permeability to albumin; similar depressor responses induced by hexamethonium were not accompanied by increased extravasation of albumin from the intravascular compartment. ANF may decrease plasma volume by increasing permeability to albumin, and this effect of ANF may account for some of the signs and symptoms of space motion sickness.

  5. Dose factor entry and display tool for BNCT radiotherapy

    DOE Patents [OSTI]

    Wessol, Daniel E. (Bozeman, MT); Wheeler, Floyd J. (Idaho Falls, ID); Cook, Jeremy L. (Greeley, CO)

    1999-01-01T23:59:59.000Z

    A system for use in Boron Neutron Capture Therapy (BNCT) radiotherapy planning where a biological distribution is calculated using a combination of conversion factors and a previously calculated physical distribution. Conversion factors are presented in a graphical spreadsheet so that a planner can easily view and modify the conversion factors. For radiotherapy in multi-component modalities, such as Fast-Neutron and BNCT, it is necessary to combine each conversion factor component to form an effective dose which is used in radiotherapy planning and evaluation. The Dose Factor Entry and Display System is designed to facilitate planner entry of appropriate conversion factors in a straightforward manner for each component. The effective isodose is then immediately computed and displayed over the appropriate background (e.g. digitized image).

  6. Spectrum of local boundary operators from boundary form factor bootstrap

    E-Print Network [OSTI]

    M. Szots; G. Takacs

    2007-03-26T23:59:59.000Z

    Using the recently introduced boundary form factor bootstrap equations, we map the complete space of their solutions for the boundary version of the scaling Lee-Yang model and sinh-Gordon theory. We show that the complete space of solutions, graded by the ultraviolet behaviour of the form factors can be brought into correspondence with the spectrum of local boundary operators expected from boundary conformal field theory, which is a major evidence for the correctness of the boundary form factor bootstrap framework.

  7. Regions of influence for several methods of factoring polynomials

    E-Print Network [OSTI]

    Schulze, Tommy Joe

    1965-01-01T23:59:59.000Z

    , or if preferred, over the field of complex numbers be denoted n n-1 f(x) = x + a x + + a x + a n-1 n' Let a factor of the above be (2) III m-1 g(x) x + p x +'''+ p x + p m-1 Ill If an iterative technique is used to find the factor (2) then iteration must... factors of any degree, it is [Sj presented in this section for quadratic factors only, to permit easy comparison with Bairstow's Method. 2 Let f(x) be as in (1), and let g(x) = x + plx + p be any 2 quadratic expression. Then the process of long...

  8. Factors Affecting the Battery Performance of Anthraquinone-based...

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

    Affecting the Battery Performance of Anthraquinone-based Organic Cathode Materials. Factors Affecting the Battery Performance of Anthraquinone-based Organic Cathode Materials....

  9. Factors Affecting HCCI Combustion Phasing for Fuels with Single...

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

    Affecting HCCI Combustion Phasing for Fuels with Single- and Dual-Stage Chemistry Factors Affecting HCCI Combustion Phasing for Fuels with Single- and Dual-Stage Chemistry 2004...

  10. apoptosis inducing factor: Topics by E-print Network

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

    independent cathepsins tumor necrosis factor Lasse Foghsgaard; Dorte Wissing; Daniel Mauch; Ulrik Lademann; Lone Bastholm; Marianne Boes; Folmer Elling; Marcel Leist;...

  11. Factors driving wind power development in the United States

    E-Print Network [OSTI]

    Bird, Lori A.; Parsons, Brian; Gagliano, Troy; Brown, Matthew H.; Wiser, Ryan H.; Bolinger, Mark

    2003-01-01T23:59:59.000Z

    geothermal, digester and landfill gas, small hydro, andenergy sources, such as landfill gas. Market Factors Theenergy sources, such as landfill gas. Integrated Resource

  12. adp ribosylation factor: Topics by E-print Network

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

    B -> K Jpsi data to extract a set of parameters which give the relevant hadronic matrix elements in terms of factorized amplitudes. Various sources of theoretical uncertainties...

  13. anthracis edema factor: Topics by E-print Network

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

    B -> K Jpsi data to extract a set of parameters which give the relevant hadronic matrix elements in terms of factorized amplitudes. Various sources of theoretical uncertainties...

  14. anthracis lethal factor: Topics by E-print Network

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

    B -> K Jpsi data to extract a set of parameters which give the relevant hadronic matrix elements in terms of factorized amplitudes. Various sources of theoretical uncertainties...

  15. alfa como factor: Topics by E-print Network

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

    B -> K Jpsi data to extract a set of parameters which give the relevant hadronic matrix elements in terms of factorized amplitudes. Various sources of theoretical uncertainties...

  16. Article Published on LED Lumen Maintenance and Light Loss Factors...

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

    of a comprehensive lifetime rating - as well as the problematic relationship between SSL lifetime and lumen maintenance - determining an appropriate LLD factor for LED products...

  17. Factors influencing photocurrent generation in organic bulk heterojunc...

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

    Factors influencing photocurrent generation in organic bulk heterojunction solar cells: interfacial energetics and blend microstructure April 29, 2009 at 3pm36-428 Jenny Nelson...

  18. Analysis Of Factors Affecting Natural Source Slf Electromagnetic...

    Open Energy Info (EERE)

    At Geothermal Wells Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal Article: Analysis Of Factors Affecting Natural Source Slf Electromagnetic...

  19. Billing Factors for Operating Reserves September 30, 2014

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

    are effective on October 1, 2014. This implements the FERC approved standard BAL-002-WECC-2. Operating Reserve - Spinning Reserve: The Billing Factor for the rates specified in...

  20. angiogenesis regulatory factors: Topics by E-print Network

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

    ... Earnhart, Dietrich H. 2006-03-13 6 Utility & Regulatory Factors Affecting Cogeneration & Independent Power Plant Design & Operation Texas A&M University - TxSpace...

  1. Geothermal: Sponsored by OSTI -- Geothermal Plant Capacity Factors

    Office of Scientific and Technical Information (OSTI)

    Plant Capacity Factors Geothermal Technologies Legacy Collection HelpFAQ | Site Map | Contact Us HomeBasic Search About Publications Advanced Search New Hot Docs News Related...

  2. Understanding Free and Complexed Enzyme Mechanisms and Factors...

    Office of Scientific and Technical Information (OSTI)

    Understanding Free and Complexed Enzyme Mechanisms and Factors Contributing to Cell Wall Recalcitrance (Presentation) Re-direct Destination: Fungal free enzymes and bacterial...

  3. Nucleon Electromagnetic Form Factors: Free Space and Medium Modifications

    SciTech Connect (OSTI)

    Wally Melnitchouk

    2003-10-01T23:59:59.000Z

    We review recent developments in the study of electromagnetic form factors of the nucleon, both in free space and in the nuclear medium. For the free nucleon case, we discuss the ratio of electric to magnetic proton form factors, and the influence of two-photon exchange on the form factor extraction. For the bound nucleon, we examine the implications of the small but non-zero modification of proton form factors in the nuclear medium suggested by recent data on polarized proton knockout reactions off He-4, and discuss constraints which it could place on models of the nuclear EMC effect.

  4. Impact of different building ventilation modes on occupant expectations of the main IEQ factors

    E-Print Network [OSTI]

    Kim, Jungsoo; de Dear, Richard

    2012-01-01T23:59:59.000Z

    Occupants satisfied Bonus Factor Proportional Factor Highthat Basic, Proportional and Bonus Factors have with overallNO Prop. YES Basic YES Bonus NO Prop. NO Prop. Satisfied

  5. Gray, W. D. (2003). Cognitive factors in homeland defense: The role of human factors in the novel intelligence from massive data (NIMD) project, Human Factors and Ergonomics Society (pp. 1017-1018). Santa Monica, CA: Human

    E-Print Network [OSTI]

    Gray, Wayne

    2003-01-01T23:59:59.000Z

    intelligence from massive data (NIMD) project, Human Factors and Ergonomics Society (pp. 1017-1018). Santa Monica, CA: Human Factors and Ergonomics Society. COGNITIVE FACTORS IN HOMELAND DEFENSE: THE ROLE

  6. Implementing the Elliptic Curve Method of Factoring in Reconfigurable Hardware

    E-Print Network [OSTI]

    Gaj, Krzysztof

    Bachimanchi1 1 Dept. of Electrical and Computer Engineering, George Mason University, Fairfax, Virginia 22030-exponential factoring algorithm, with expected run time of O(exp(c log p log log p) M(N)) where c > 0, p is a factor we aim to find, and M(N) denotes the cost of multiplication (mod N). ECM is the best method to perform

  7. FRIGERATION OF FISH -PART 3 FACTORS TO BE CONSIDERED

    E-Print Network [OSTI]

    FRIGERATION OF FISH - PART 3 FACTORS TO BE CONSIDERED IN THE FREEZING AND COLD STORAGE. REFRIGERATION OF FISH - PART THREE FACTORS TO BE CONSIDERED IN THE FREEZING AND COLD STORAGE OF FISHERY PRODUCTS Taking Place During Cold Storage of Fish Section 3 - Protective Coverings for Frozen Fish · · Pages 1

  8. Optimizing Thermoelectric Power Factor by Means of a Potential Barrier

    E-Print Network [OSTI]

    1 Optimizing Thermoelectric Power Factor by Means of a Potential Barrier Neophytos Neophytou}@iue.tuwien.ac.at Abstract Large efforts in improving thermoelectric energy conversion are devoted to energy filtering design, ~40% improvement in the thermoelectric power factor can be achieved if the following conditions

  9. ON THE GAGE FACTOR FOR OPTICAL FIBER GRATING STRAIN GAGES

    E-Print Network [OSTI]

    Park, Yong-Lae

    ON THE GAGE FACTOR FOR OPTICAL FIBER GRATING STRAIN GAGES Richard J. Black1 , David Zare1 , Levy Oblea1 , Yong-Lae Park1 , Behzad Moslehi1 , and Craig Neslen2 1 Intelligent Fiber Optic Systems of grating and fiber types. KEY WORDS: Fiber-Optic Gratings, Fiber-Optic Sensors, Strain Gage Factor 1

  10. Nucleon Form Factors experiments with 12 GeV CEBAF

    SciTech Connect (OSTI)

    Wojtsekhowski, Bogdan

    2008-11-01T23:59:59.000Z

    A number of precision form factor experiments at high momentum transfer will be performed with the 11 GeV electron beam of CEBAF. We review the approved proposals and the conceptual schemes of several new suggestions. Form factor data will serve as a major input for the construction of a tomographic image of the nucleon.

  11. Multi-Factor Energy Price Models Exotic Derivatives Pricing

    E-Print Network [OSTI]

    Jaimungal, Sebastian

    Multi-Factor Energy Price Models and Exotic Derivatives Pricing by Samuel Hikspoors A thesis of Statistics University of Toronto c Copyright by Samuel Hikspoors 2008 #12;Multi-Factor Energy Price Models and practitioners alike recently started to develop the tools of energy derivatives pricing

  12. Scaling Factor Inconsistencies in Neutrinoless Double Beta Decay

    E-Print Network [OSTI]

    S. Cowell

    2005-12-05T23:59:59.000Z

    The modern theory of neutrinoless double beta decay includes a scaling factor that has often been treated inconsistently in the literature. The nuclear contribution to the decay half life can be suppressed by 15-20% when scaling factors are mismatched. Correspondingly, $$ is overestimated.

  13. Scaling factor inconsistencies in neutrinoless double beta decay

    SciTech Connect (OSTI)

    Cowell, S. [Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)

    2006-02-15T23:59:59.000Z

    The modern theory of neutrinoless double beta decay includes a scaling factor that has often been treated inconsistently in the literature. The nuclear contribution to the decay half-life can be suppressed by 15%-20% when scaling factors are mismatched. Correspondingly, is overestimated.

  14. Wildland fire emissions, carbon, and climate: Emission factors Shawn Urbanski

    E-Print Network [OSTI]

    Wildland fire emissions, carbon, and climate: Emission factors Shawn Urbanski Missoula Fire burning Greenhouse gases Emission factors a b s t r a c t While the vast majority of carbon emitted mixture of gases and aerosols. Primary emissions include sig- nificant amounts of CH4 and aerosol (organic

  15. Using computational tools to factor wind into architectural environment design

    E-Print Network [OSTI]

    Chen, Qingyan "Yan"

    and an acceptable thermal comfort level, by means of passive cooling or natural ventilation. On the other hand, wind tools to factor wind into architectural environment design," Energy and Buildings, 36, 1197-1209. #121 Using computational tools to factor wind into architectural environment design Qingyan (Yan) Chen

  16. Journal Diffusion Factors a measure of diffusion? Tove Faber Frandsen

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    1 Journal Diffusion Factors ­ a measure of diffusion? Tove Faber Frandsen Royal School of Library In this paper we show that the measure of diffusion introduced by Ian Rowlands called the Journal Diffusion Factor (JDF) is highly negatively correlated with the number of citations, leading highly cited journals

  17. Matrix Factorizations for Information Retrieval Dianne P. O'Leary

    E-Print Network [OSTI]

    O'Leary, Dianne P.

    Matrix Factorizations for Information Retrieval Dianne P. O'Leary Computer Science Dept that is predominantly linear algebra · Conclusions A Catalog of Matrix Factorizations c 2006 Dianne P. O'Leary 1 or oscillation · understanding Markov chains c 2006 Dianne P. O'Leary 2 University of Maryland, College Park #12

  18. The effects of growth factors on testicular germ cell apoptosis in the stallion

    E-Print Network [OSTI]

    Donnelly, Casey Leanne

    2002-01-01T23:59:59.000Z

    recombinant growth factors, stem cell factor (SCF), leukemia inhibiting factor (LIF), granulocyte macrophage-colony stimulating factor (GM-CSF), and one hormone, estradiol (E?), alone or in combination, to prevent apoptosis of germ cells in short-term equine...

  19. Photon impact factor and k{sub T}-factorization for DIS in the next-to-leading order

    SciTech Connect (OSTI)

    Ian Balitsky, Giovanni Chirilli

    2013-01-01T23:59:59.000Z

    The photon impact factor for the BFKL pomeron is calculated in the next-to-leading order (NLO) approximation using the operator expansion in Wilson lines. The result is represented as an NLO k{sub T}-factorization formula for structure functions of small-x deep inelastic scattering.

  20. Lifestyle Factors in U.S. Residential Electricity Consumption

    SciTech Connect (OSTI)

    Sanquist, Thomas F.; Orr, Heather M.; Shui, Bin; Bittner, Alvah C.

    2012-03-30T23:59:59.000Z

    A multivariate statistical approach to lifestyle analysis of residential electricity consumption is described and illustrated. Factor analysis of selected variables from the 2005 U.S. Residential Energy Consumption Survey (RECS) identified five lifestyle factors reflecting social and behavioral choices associated with air conditioning, laundry usage, personal computer usage, climate zone of residence, and TV use. These factors were also estimated for 2001 RECS data. Multiple regression analysis using the lifestyle factors yields solutions accounting for approximately 40% of the variance in electricity consumption for both years. By adding the associated household and market characteristics of income, local electricity price and access to natural gas, variance accounted for is increased to approximately 54%. Income contributed only {approx}1% unique variance to the 2005 and 2001 models, indicating that lifestyle factors reflecting social and behavioral choices better account for consumption differences than income. This was not surprising given the 4-fold range of energy use at differing income levels. Geographic segmentation of factor scores is illustrated, and shows distinct clusters of consumption and lifestyle factors, particularly in suburban locations. The implications for tailored policy and planning interventions are discussed in relation to lifestyle issues.

  1. Twisted mass QCD for the pion electromagnetic form factor

    SciTech Connect (OSTI)

    Abdel-Rehim, Abdou M.; Lewis, Randy [Department of Physics, University of Regina, Regina, Saskatchewan, S4S 0A2 (Canada)

    2005-01-01T23:59:59.000Z

    The pion form factor is computed using quenched twisted mass QCD and the GMRES-DR matrix inverter. The momentum averaging procedure of Frezzotti and Rossi is used to remove leading lattice spacing artifacts, and numerical results for the form factor show the expected improvement with respect to the standard Wilson action. Although some matrix inverters are known to fail when applied to twisted mass QCD, GMRES-DR is found to be a viable and powerful option. Results obtained for the pion form factor are consistent with the published results from other O(a) improved actions and are also consistent with the available experimental data.

  2. Dual chain synthetic heparin-binding growth factor analogs

    DOE Patents [OSTI]

    Zamora, Paul O. (Gaithersburg, MD); Pena, Louis A. (Poquott, NY); Lin, Xinhua (Plainview, NY)

    2012-04-24T23:59:59.000Z

    The invention provides synthetic heparin-binding growth factor analogs having two peptide chains each branched from a branch moiety, such as trifunctional amino acid residues, the branch moieties separated by a first linker of from 3 to about 20 backbone atoms, which peptide chains bind a heparin-binding growth factor receptor and are covalently bound to a non-signaling peptide that includes a heparin-binding domain, preferably by a second linker, which may be a hydrophobic second linker. The synthetic heparin-binding growth factor analogs are useful as pharmaceutical agents, soluble biologics or as surface coatings for medical devices.

  3. Dual chain synthetic heparin-binding growth factor analogs

    DOE Patents [OSTI]

    Zamora, Paul O. (Gaithersburg, MD); Pena, Louis A. (Poquott, NY); Lin, Xinhua (Plainview, NY)

    2009-10-06T23:59:59.000Z

    The invention provides synthetic heparin-binding growth factor analogs having two peptide chains each branched from a branch moiety, such as trifunctional amino acid residues, the branch moieties separated by a first linker of from 3 to about 20 backbone atoms, which peptide chains bind a heparin-binding growth factor receptor and are covalently bound to a non-signaling peptide that includes a heparin-binding domain, preferably by a second linker, which may be a hydrophobic second linker. The synthetic heparin-binding growth factor analogs are useful as pharmaceutical agents, soluble biologics or as surface coatings for medical devices.

  4. Quality factors and dynamical tunneling in annular microcavities

    E-Print Network [OSTI]

    Arnd Bäcker; Roland Ketzmerick; Steffen Löck; Jan Wiersig; Martina Hentschel

    2009-06-02T23:59:59.000Z

    The key characteristic of an optical mode in a microcavity is its quality factor describing the optical losses. The numerical computation of this quantity can be very demanding for present-day devices. Here we show for a certain class of whispering-gallery cavities that the quality factor is related to dynamical tunneling, a phenomenon studied in the field of quantum chaos. We extend a recently developed approach for determining dynamical tunneling rates to open cavities. This allows us to derive an analytical formula for the quality factor which is in very good agreement with full solutions of Maxwell's equations.

  5. Exact Bivariate Polynomial Factorization in Q by Approximation of Roots

    E-Print Network [OSTI]

    Feng, Yong; Zhang, Jingzhong

    2010-01-01T23:59:59.000Z

    Factorization of polynomials is one of the foundations of symbolic computation. Its applications arise in numerous branches of mathematics and other sciences. However, the present advanced programming languages such as C++ and J++, do not support symbolic computation directly. Hence, it leads to difficulties in applying factorization in engineering fields. In this paper, we present an algorithm which use numerical method to obtain exact factors of a bivariate polynomial with rational coefficients. Our method can be directly implemented in efficient programming language such C++ together with the GNU Multiple-Precision Library. In addition, the numerical computation part often only requires double precision and is easily parallelizable.

  6. Cementation factor and water saturation exponent in low porosity sandstones

    E-Print Network [OSTI]

    Owen, Stephen Douglas

    1984-01-01T23:59:59.000Z

    and cementation factor when porosity was below 0. 15, and a linear relationship was found between cementa- tion factor and clay content. No relationship was found between porosity and water saturat1on exponent, or cementation factor and water saturat1on... granular formations in the absence of laboratory analysis. In 1977, Bush and Jenkins~~ suggested a simple method for deter- mining clay content, which was used in this study. 103 102 z 0 M 0 10 2 3 4 5678910 2 3 4 5 6 7 8 1p2 POROSITY Fig. I...

  7. Noisy Independent Factor Analysis Model for Density Estimation and Classification

    E-Print Network [OSTI]

    Amato, U.

    2009-06-09T23:59:59.000Z

    We consider the problem of multivariate density estimation when the unknown density is assumed to follow a particular form of dimensionality reduction, a noisy independent factor analysis (IFA) model. In this model the ...

  8. aspects risk factors: Topics by E-print Network

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

    2010-01-01 51 Review Epidemiology, risk factors, and lifestyle modifications for gout CiteSeer Summary: Gout affects more than 1 % of adults in the USA, and it is the most...

  9. additional risk factor: Topics by E-print Network

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

    2010-01-01 47 Review Epidemiology, risk factors, and lifestyle modifications for gout CiteSeer Summary: Gout affects more than 1 % of adults in the USA, and it is the most...

  10. agroecological risk factors: Topics by E-print Network

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

    2010-01-01 47 Review Epidemiology, risk factors, and lifestyle modifications for gout CiteSeer Summary: Gout affects more than 1 % of adults in the USA, and it is the most...

  11. atherosclerosis risk factors: Topics by E-print Network

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

    2010-01-01 58 Review Epidemiology, risk factors, and lifestyle modifications for gout CiteSeer Summary: Gout affects more than 1 % of adults in the USA, and it is the most...

  12. adolescent risk factors: Topics by E-print Network

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

    2010-01-01 77 Review Epidemiology, risk factors, and lifestyle modifications for gout CiteSeer Summary: Gout affects more than 1 % of adults in the USA, and it is the most...

  13. adulthood risk factors: Topics by E-print Network

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

    2010-01-01 52 Review Epidemiology, risk factors, and lifestyle modifications for gout CiteSeer Summary: Gout affects more than 1 % of adults in the USA, and it is the most...

  14. atherosclerotic risk factors: Topics by E-print Network

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

    2010-01-01 48 Review Epidemiology, risk factors, and lifestyle modifications for gout CiteSeer Summary: Gout affects more than 1 % of adults in the USA, and it is the most...

  15. acquired risk factors: Topics by E-print Network

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

    Universit de 45 Review Epidemiology, risk factors, and lifestyle modifications for gout CiteSeer Summary: Gout affects more than 1 % of adults in the USA, and it is the most...

  16. analyzing risk factors: Topics by E-print Network

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

    2010-01-01 74 Review Epidemiology, risk factors, and lifestyle modifications for gout CiteSeer Summary: Gout affects more than 1 % of adults in the USA, and it is the most...

  17. additional risk factors: Topics by E-print Network

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

    2010-01-01 47 Review Epidemiology, risk factors, and lifestyle modifications for gout CiteSeer Summary: Gout affects more than 1 % of adults in the USA, and it is the most...

  18. aureus risk factors: Topics by E-print Network

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

    2010-01-01 58 Review Epidemiology, risk factors, and lifestyle modifications for gout CiteSeer Summary: Gout affects more than 1 % of adults in the USA, and it is the most...

  19. activated transcription factors: Topics by E-print Network

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

    Vijaya L. Krishnan; Ian M. Adcock; Peter J. Barnes; K. Fan Chung 1998-01-01 4 The Turkey Transcription Factor Pit-1GHF-1 Can Activate the Turkey Prolactin and Growth Hormone...

  20. adverse survival factor: Topics by E-print Network

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

    Heat treatment pH, recovery1 Survival curves of heated bacterial spores:1 Effect of environmental factors on Weibull heat13 resistance for non-log linear survival curves. One...

  1. Key Factors in Displacement Ventilation Systems for Better IAQ

    E-Print Network [OSTI]

    Wang, X.; Chen, J.; Li, Y.; Wang, Z.

    2006-01-01T23:59:59.000Z

    This paper sets up a mathematical model of three-dimensional steady turbulence heat transfer in an air-conditioned room of multi-polluting heat sources. Numerical simulation helps identify key factors in displacement ventilation systems that affect...

  2. Study on Influencing Factors of Night Ventilation in Office Rooms

    E-Print Network [OSTI]

    Wang, Z.; Sun, X.

    2006-01-01T23:59:59.000Z

    A mathematical and physical model on night ventilation is set up. The fields of indoor air temperature, air velocity and thermal comfort are simulated using Airpak software. Some main influencing factors of night ventilation in office rooms...

  3. Extended correlations of porosity, permeability, and formation resistivity factor

    E-Print Network [OSTI]

    Ellis, Keith Wade

    1987-01-01T23:59:59.000Z

    obtained through a literature search, and the remainder were obtained through donations by Shell and Tenneco. The complete data set consists of permeability, porosity and formation factor measurements for twenty formations. Of the twenty data sets, seven...

  4. Factors that influence exercise participation amoung older adults

    E-Print Network [OSTI]

    Murphey, Kristina Kile

    2001-01-01T23:59:59.000Z

    The purpose of this study was to survey adults age 60 and older to measure their levels of exercise self-efficacy, attitudes toward exercise and health, and perceived exercise control beliefs. Participants also defined other intrapersonal factors...

  5. Rare $B$ decays using lattice QCD form factors

    E-Print Network [OSTI]

    Horgan, R R; Meinel, S; Wingate, M

    2015-01-01T23:59:59.000Z

    In this write-up we review and update our recent lattice QCD calculation of $B \\to K^*$, $B_s \\to \\phi$, and $B_s \\to K^*$ form factors [arXiv:1310.3722]. These unquenched calculations, performed in the low-recoil kinematic regime, provide a significant improvement over the use of extrapolated light cone sum rule results. The fits presented here include further kinematic constraints and estimates of additional correlations between the different form factor shape parameters. We use these form factors along with Standard Model determinations of Wilson coefficients to give Standard Model predictions for several observables [arXiv:1310.3887]. The modest improvements to the form factor fits lead to improved determinations of $F_L$, the fraction of longitudinally polarized vector mesons, but have little effect on most other observables.

  6. Rare $B$ decays using lattice QCD form factors

    E-Print Network [OSTI]

    R. R. Horgan; Z. Liu; S. Meinel; M. Wingate

    2015-03-20T23:59:59.000Z

    In this write-up we review and update our recent lattice QCD calculation of $B \\to K^*$, $B_s \\to \\phi$, and $B_s \\to K^*$ form factors [arXiv:1310.3722]. These unquenched calculations, performed in the low-recoil kinematic regime, provide a significant improvement over the use of extrapolated light cone sum rule results. The fits presented here include further kinematic constraints and estimates of additional correlations between the different form factor shape parameters. We use these form factors along with Standard Model determinations of Wilson coefficients to give Standard Model predictions for several observables [arXiv:1310.3887]. The modest improvements to the form factor fits lead to improved determinations of $F_L$, the fraction of longitudinally polarized vector mesons, but have little effect on most other observables.

  7. Linewidth enhancement factor. cap alpha. in semiconductor injection lasers

    SciTech Connect (OSTI)

    Vahala, K.; Chiu, L.C.; Margalit, S.; Yariv, A.

    1983-04-15T23:59:59.000Z

    A simple model for the linewidth enhancement factor ..cap alpha.. and its frequency dependence in semiconductor lasers is presented. Calculations based on this model are in reasonable agreement with experimental results.

  8. SciTech Connect: Industrial Power Factor Analysis Guidebook.

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

    factor is a way of measuring the percentage of reactive power in an electrical system. Reactive power represents wasted energy--electricity that does no useful work because the...

  9. Socialization and resources: factors relating to spouse abuse

    E-Print Network [OSTI]

    Brown, Mary Melissa

    1980-01-01T23:59:59.000Z

    SOCIALIZATION AND P SOURCES: FACTORS RELATING TO SPOUSE ABUSE A Thesis by MARY MELISSA BRONN Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirement for the degree of MASTER OF SCIENCE December...

  10. astrophysical s170 factor: Topics by E-print Network

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

    is predicted to be 10.1 10-20 keV b, a factor of five larger than the standard-solar-model value. The P-wave transitions are found to be important, contributing about 40 %...

  11. Flavor decomposition of the elastic nucleon electromagnetic form factors

    SciTech Connect (OSTI)

    C.D. Cates, C.W. Jager, S. Riordan, B. Wojtsekhowski

    2011-06-01T23:59:59.000Z

    The u- and d-quark contributions to the elastic nucleon electromagnetic form factors have been determined using experimental data on GEn , GMn , GpE , and GpM . Such a flavor separation of the form factors became possible up to 3.4 GeV2 with recent data on GEn from Hall A at JLab. At a negative four-momentum transfer squared Q2 above 1 GeV2, for both the u- and d-quark components, the ratio of the Pauli form factor to the Dirac form factor, F2/F1, was found to be almost constant, and for each of F2 and F1 individually, the d-quark component drops continuously with increasing Q2.

  12. Early career development in the sport industry: factors affecting employment

    E-Print Network [OSTI]

    Hutchinson, Michael Daniel

    2009-05-15T23:59:59.000Z

    The purpose of this study is to identify the processes and factors contributing to employment in the sport industry. In order to completely address the sport industry as a whole, sport management has been pragmatically divided into five sub...

  13. Factors influencing the efficiency of arsenic extraction by phosphate

    E-Print Network [OSTI]

    Yean, Su Jin

    2005-11-01T23:59:59.000Z

    , phosphate concentration, principal counterion, reaction pH, and reaction time. The extraction efficiency was impacted by the influence of these individual factors on reaction kinetics and accessibility of arsenic adsorption sites for ligand exchange...

  14. Factors controlling tungsten concentrations in ground water, Carson Desert, Nevada

    E-Print Network [OSTI]

    Factors controlling tungsten concentrations in ground water, Carson Desert, Nevada Ralph L. Seiler sources. Tungsten concentrations in 100 ground water samples from all aquifers used as drinking water indicates that W exhibits Tungsten con- centrations are strongly and positively correlated

  15. Diagnostic relapse in Borderline Personality Disorder: risk and protective factors

    E-Print Network [OSTI]

    Quigley, Brian David

    2004-11-15T23:59:59.000Z

    throughout their lifetimes and they may repeatedly return for psychological treatment. Whereas previous studies have attempted to identify various factors related to relapse in other chronically recurring disorders such as depression, schizophrenia...

  16. Role of Hepatocyte Nuclear Factor 4 alpha in Hepatocyte Proliferation

    E-Print Network [OSTI]

    Walesky, Chad Michael

    2014-05-31T23:59:59.000Z

    Hepatocyte Nuclear Factor 4 alpha (HNF4?) is the master regulator of hepatocyte differentiation. It is involved in the up-regulation of genes involved in many classic hepatic functions including: bile acid metabolism, ...

  17. Geography: Critical Factors in the Analysis of Complex Systems

    E-Print Network [OSTI]

    Welch, Ivan

    2012-05-31T23:59:59.000Z

    Geography is a disciple of discovery and exploration. From earliest human endeavor until today, it remains the key to understanding human interaction with the landscape. A conceptual framework of geographic factors provides ...

  18. Light, Nearwork, and Visual Environment Risk Factors in Myopia

    E-Print Network [OSTI]

    Alvarez, Amanda Aleksandra

    2012-01-01T23:59:59.000Z

    of time outdoors and light levels as risk factors for myopiaH. C. (1995). Constant light produces severe cornealNg, H. , & Phillips, J. (2011) Light exposure patterns in

  19. Human factors survey of advanced instrumentation and controls

    SciTech Connect (OSTI)

    Carter, R.J.

    1989-01-01T23:59:59.000Z

    A survey oriented towards identifying the human factors issues in regard to the use of advanced instrumentation and controls (I C) in the nuclear industry was conducted. A number of United States (US) and Canadian nuclear vendors and utilities were participants in the survey. Human factors items, subsumed under the categories of computer-generated displays (CGD), controls, organizational support, training, and related topics, were discussed. The survey found the industry to be concerned about the human factors issues related to the implementation of advanced I C. Fifteen potential human factors problems were identified. They include: the need for an advanced I C guideline equivalent to NUREG-0700; a role change in the control room from operator to supervisor; information overload; adequacy of existing training technology for advanced I C; and operator acceptance and trust. 11 refs., 1 tab.

  20. Campus Environmental Factors Influencing Student Leadership Development and Civic Engagement

    E-Print Network [OSTI]

    Boren, Laura

    2012-02-14T23:59:59.000Z

    for the study. The researcher determined from participant responses that peer and mentor relationships, community identity, personal identity, and democratic experiences were key environmental factors influencing student leadership development and civic...

  1. attenuating factor phage: Topics by E-print Network

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

    of America, Vol. 87, No. 4, pp. 961-970, August 1997 A Bayesian Nonlinear Inversion of Seismic Body-Wave Attenuation Factors Geosciences Websites Summary: A Bayesian Nonlinear...

  2. Characterizing and engineering antibodies against the epidermal growth factor receptor

    E-Print Network [OSTI]

    Chao, Ginger

    2008-01-01T23:59:59.000Z

    Epidermal growth factor receptor (EGFR) signaling leads to cellular proliferation and migration, and thus EGFR dysregulation can significantly contribute to the survival of tumor cells. Aberrant EGFR signaling due to ...

  3. Nucleon axial form factors from two-flavour Lattice QCD

    E-Print Network [OSTI]

    P. M. Junnarkar; S. Capitani; D. Djukanovic; G. von Hippel; J. Hua; B. Jäger; H. B. Meyer; T. D. Rae; H. Wittig

    2014-11-21T23:59:59.000Z

    We present preliminary results on the axial form factor $G_A(Q^2)$ and the induced pseudoscalar form factor $G_P(Q^2)$ of the nucleon. A systematic analysis of the excited-state contributions to form factors is performed on the CLS ensemble `N6' with $m_\\pi = 340 \\ \\text{MeV}$ and lattice spacing $a \\sim 0.05 \\ \\text{fm}$. The relevant three-point functions were computed with source-sink separations ranging from $t_s \\sim 0.6 \\ \\text{fm}$ to $t_s \\sim \\ 1.4 \\ \\text{fm}$. We observe that the form factors suffer from non-trivial excited-state contributions at the source-sink separations available to us. It is noted that naive plateau fits underestimate the excited-state contributions and that the method of summed operator insertions correctly accounts for these effects.

  4. Key Factors in Displacement Ventilation Systems for Better IAQ 

    E-Print Network [OSTI]

    Wang, X.; Chen, J.; Li, Y.; Wang, Z.

    2006-01-01T23:59:59.000Z

    This paper sets up a mathematical model of three-dimensional steady turbulence heat transfer in an air-conditioned room of multi-polluting heat sources. Numerical simulation helps identify key factors in displacement ventilation systems that affect...

  5. antitumor necrosis factor: Topics by E-print Network

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

    single-nucleo- tide polymorphisms (SNPs) or haplotypes in the TNF Nyholt, Dale R. 10 Maximum-entropy network analysis reveals a role for tumor necrosis factor in peripheral...

  6. Factor Demand Linkages, Technology Shocks and the Business Cycle

    E-Print Network [OSTI]

    Holly, Sean; Petrella, I

    . In this paper we consider the implications of factor demand linkages for the econometric analysis of the e¤ect of technology shocks on hours. A contemporaneous technology shock to all sectors in manufacturing then implies a positive aggregate response in both... output and hours. The positive aggregate response is directly related to the role of factor demand linkages in the transmission of shocks. When sectoral interactions are ignored we ?nd a negative correlation as with much of the literature. This 4 suggests...

  7. Two-phase compressibility factors for retrograde gases

    E-Print Network [OSTI]

    Rayes, Daniel George

    1989-01-01T23:59:59.000Z

    of a liquid phase. Gas compressibility factors are used in the gas material balance equations. These equations are used to estimate initial gas in place and reserves. Normally gas compressibility factors are used when a reservoir fluid depletion.... 0 on a material balance plot. Dake's equation has limited usefulness because the initial gas in place G is an unknown in the field. Also note that Gp at the abandonment pressure is the ultimate reserves of the reservoir. We can also derive...

  8. Factors influencing food selection by students in a university foodservice

    E-Print Network [OSTI]

    Clement, Camille Therese

    1989-01-01T23:59:59.000Z

    In food seleotlon considered most Important by males and females. 17 60 40 20 CV CO CO ~ MAlES Q FEMAlE SENSORy OCNVENENCE NUTRIENT KCALORIE FOOD SELECTION FACTORS RG. 3. Comparison of factors In food selection considered least Important... that I could achieve it, and the opportunity to do so. I loveyou. TABLE OF CONTENTS vl Page ABSTRACT s . o o ~ o o ~ ~ ~ o o o ~ s o e o ~ ACKNOWLEDGMENTS ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ v TABLE OF CONTENTS . . . . . . . . . . . ~ ~ ~ ~ . . vi...

  9. Factors affecting attitudinal patterns toward education in the Dominican Republic

    E-Print Network [OSTI]

    Carpenter, Edwin Hugh

    1968-01-01T23:59:59.000Z

    FACTORS AF'FECTING ATTITUDINAL PATTERNS TOWARD EDUCATION IN THE DOHINICAN REPUBLIC A Thesi. s by EDWIN HUGH CARPENTER Submitted to the Graduate College of the Texas A&M University in partial fulfillment of the requirements for the degree... of NASTER OF SCIENCE August 1968 Major Sub)sot: Sociology FACTORS AFFECTING ATTITUDINAL PATTERNS TOWARD EDUCATION IN THE DOMINICAN REPUBLIC A Thesis by EDWIN HUGH CARPENTER Approved as to style and content by: (Chairman gf Commit tee) (Head...

  10. Density matrix renormalization group and wave function factorization for nuclei

    E-Print Network [OSTI]

    T. Papenbrock; D. J. Dean

    2005-07-15T23:59:59.000Z

    We employ the density matrix renormalization group (DMRG) and the wave function factorization method for the numerical solution of large scale nuclear structure problems. The DMRG exhibits an improved convergence for problems with realistic interactions due to the implementation of the finite algorithm. The wave function factorization of fpg-shell nuclei yields rapidly converging approximations that are at the present frontier for large-scale shell model calculations.

  11. Panel Data Analysis of Regulatory Factors Shaping Environmental Performance

    E-Print Network [OSTI]

    Earnhart, Dietrich H.

    2006-03-13T23:59:59.000Z

    and the influence of regulatory factors in general, this paper examines a specific demonstration of environmental perfor- mance: biological oxygen demand (BOD) wastewater dis- charges by large (“major”) municipal wastewater treatment plants in Kansas during... example, limit levels). To analyze the effects of these regulatory factors on envi- ronmental performance, this particular empirical analysis examines the wastewater discharges by large municipal wastewater treatment facilities in the state of Kansas...

  12. An economic analysis of factors affecting the Texas potato market

    E-Print Network [OSTI]

    Asgill, Oladimagi Winsome

    1989-01-01T23:59:59.000Z

    AN ECONOMIC ANALYSIS OF FACTORS AFFECTING THE TEXAS POTATO MARKET A Thesis OLADIMAGI WINSOME ASGILL Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER... OF SCIENCE May 1989 Major Subject: Agricultural Economics AN ECONOMIC ANALYSIS OP FACTORS AFFECTING THE TEXAS POTATO MARKET A Thesis OLADIMAGI WINSOME ASGILL Approved as to style and content by: H. L. Goodwin (Chair of Committee) S. W. Fuller (Member...

  13. Nonspecific transcription factor binding reduces variability in transcription factor and target protein expression

    E-Print Network [OSTI]

    Mohammad Soltani; Pavol Bokes; Zachary Fox; Abhyudai Singh

    2015-04-14T23:59:59.000Z

    Transcription factors (TFs) interact with a multitude of binding sites on DNA and partner proteins inside cells. We investigate how nonspecific binding/unbinding to such decoy binding sites affects the magnitude and time-scale of random fluctuations in TF copy numbers arising from stochastic gene expression. A stochastic model of TF gene expression, together with decoy site interactions is formulated. Distributions for the total (bound and unbound) and free (unbound) TF levels are derived by analytically solving the chemical master equation under physiologically relevant assumptions. Our results show that increasing the number of decoy binding sides considerably reduces stochasticity in free TF copy numbers. The TF autocorrelation function reveals that decoy sites can either enhance or shorten the time-scale of TF fluctuations depending on model parameters. To understand how noise in TF abundances propagates downstream, a TF target gene is included in the model. Intriguingly, we find that noise in the expression of the target gene decreases with increasing decoy sites for linear TF-target protein dose-responses, even in regimes where decoy sites enhance TF autocorrelation times. Moreover, counterintuitive noise transmissions arise for nonlinear dose-responses. In summary, our study highlights the critical role of molecular sequestration by decoy binding sites in regulating the stochastic dynamics of TFs and target proteins at the single-cell level.

  14. Nuclear mass form factors from coherent photoproduction of $?^0$ mesons

    E-Print Network [OSTI]

    B. Krusche

    2005-09-01T23:59:59.000Z

    Data for coherent photoproduction of $\\pi^0$ mesons from nuclei ($^{12}$C, $^{40}$Ca, $^{93}$Nb, $^{nat}$Pb), recently measured with the TAPS detector at the Mainz MAMI accelerator, have been analyzed in view of the mass form factors of the nuclei. The form factors have been extracted in plane wave approximation of the $A(\\gamma ,\\pi^0)A$ reaction and corrected for final state interaction effects with the help of distorted wave impulse approximations. Nuclear mass rms-radii have been calculated from the slope of the form factors for $q^2\\to 0$. Furthermore, the Helm model (hard sphere form factor folded with Gaussian) was used to extract diffraction radii from the zeroes of the form factor and skin thicknesses from the position and height of its first maximum. The diffraction radii from the Helm model agree with the corresponding charge radii obtained from electron scattering experiments within their uncertainties of a few per cent. The rms-radii from the slope of the form factors are systematically lower by up to 5% for PWIA and up to 10% for DWIA. Also the skin thicknesses extracted from the Helm model are systematically smaller than their charge counter parts.

  15. 2008 Guidelines to Defra's GHG Conversion Methodology Paper for Transport Emission Factors

    E-Print Network [OSTI]

    2008 Guidelines to Defra's GHG Conversion Factors: Methodology Paper for Transport Emission Factors: Methodology Paper for Transport Emission Factors Contents I. INTRODUCTION 3 II. AVIATION 4 Previous Approach 4 New Passenger Air Transport Emission Factors 5 New Freight Air Transport Emission Factors 10 Other

  16. Human factors evaluation of teletherapy: Literature review. Volume 5

    SciTech Connect (OSTI)

    Henriksen, K.; Kaye, R.D.; Jones, R. [Hughes Training, Inc., Falls Church, VA (United States); Morisseau, D.S.; Serig, D.L. [Nuclear Regulatory Commission, Washington, DC (United States). Div. of Systems Technology

    1995-07-01T23:59:59.000Z

    A series of human factors evaluations were undertaken to better understand the contributing factors to human error in the teletherapy environment. Teletherapy is a multidisciplinary methodology for treating cancerous tissue through selective exposure to an external beam of ionizing radiation. A team of human factors specialists, assisted by a panel of radiation oncologists, medical physicists, and radiation therapists, conducted site visits to radiation oncology departments at community hospitals, university centers, and free-standing clinics. A function and task analysis was performed initially to guide subsequent evaluations in the areas of workplace environment, system-user interfaces, procedures, training, and organizational practices. To further acquire an in-depth and up-to-date understanding of the practice of teletherapy in support of these evaluations, a systematic literature review was conducted. Factors that have a potential impact on the accuracy of treatment delivery were of primary concern. The present volume is the literature review. The volume starts with an overview of the multiphased nature of teletherapy, and then examines the requirement for precision, the increasing role of quality assurance, current conceptualizations of human error, and the role of system factors such as the workplace environment, user-system interfaces, procedures, training, and organizational practices.

  17. Calculation of Accurate Hexagonal Discontinuity Factors for PARCS

    SciTech Connect (OSTI)

    Pounders. J., Bandini, B. R. , Xu, Y, and Downar, T. J.

    2007-11-01T23:59:59.000Z

    In this study we derive a methodology for calculating discontinuity factors consistent with the Triangle-based Polynomial Expansion Nodal (TPEN) method implemented in PARCS for hexagonal reactor geometries. The accuracy of coarse-mesh nodal methods is greatly enhanced by permitting flux discontinuities at node boundaries, but the practice of calculating discontinuity factors from infinite-medium (zero-current) single bundle calculations may not be sufficiently accurate for more challenging problems in which there is a large amount of internodal neutron streaming. The authors therefore derive a TPEN-based method for calculating discontinuity factors that are exact with respect to generalized equivalence theory. The method is validated by reproducing the reference solution for a small hexagonal core.

  18. Evaluation of vitrification factors from DWPF's macro-batch 1

    SciTech Connect (OSTI)

    Edwards, T.B.

    2000-01-25T23:59:59.000Z

    The Defense Waste Processing Facility (DWPF) is evaluating new sampling and analytical methods that may be used to support future Slurry Mix Evaporator (SME) batch acceptability decisions. This report uses data acquired during DWPF's processing of macro-batch 1 to determine a set of vitrification factors covering several SME and Melter Feed Tank (MFT) batches. Such values are needed for converting the cation measurements derived from the new methods to a ``glass'' basis. The available data from macro-batch 1 were used to examine the stability of these vitrification factors, to estimate their uncertainty over the course of a macro-batch, and to provide a recommendation on the use of a single factor for an entire macro-batch. The report is in response to Technical Task Request HLW/DWPF/TTR-980015.

  19. Giant g-factors of natural impurities in synthetic quartz

    SciTech Connect (OSTI)

    Goryachev, Maxim; Farr, Warrick G.; Tobar, Michael E., E-mail: michael.tobar@uwa.edu.au [ARC Centre of Excellence for Engineered Quantum Systems, University of Western Australia, 35 Stirling Highway, Crawley WA 6009 (Australia)

    2013-12-23T23:59:59.000Z

    We report the observation of g-factors of natural paramagnetic impurities in a pure synthetic quartz crystal at milli-Kelvin temperatures. Measurements are made by performing spectroscopy using multiple high-Q whispering gallery modes sustained in the crystal. Extreme sensitivity of the method at low temperatures allows the determination of natural residual impurities introduced during the crystal growth. We observe g-factors that significantly differ from integer multiples of the electron g-factor in vacuum, and with values of up to 7.6, which reveals much stronger coupling between impurities and the crystal lattice than in previous studies. Both substitutional and interstitial ions are proposed as candidates for the observed interactions.

  20. The Proton Form Factor Ratio Measurements at Jefferson Lab

    SciTech Connect (OSTI)

    Punjabi, Vina A. [Norfolk State University, Norfolk, VA (United States); Perdrisat, Charles F. [William and Mary College, Williamsburg, VA (United States)

    2014-03-01T23:59:59.000Z

    The ratio of the proton form factors, G{sub Ep}/G{sub Mp}, has been measured from Q{sup 2} of 0.5 GeV{sup 2} to 8.5 GeV{sup 2}, at the Jefferson Laboratory, using the polarization transfer method. This ratio is extracted directly from the measured ratio of the transverse and longitudinal polarization components of the recoiling proton in elastic electron-proton scattering. The discovery that the proton form factor ratio measured in these experiments decreases approximately linearly with four-momentum transfer, Q{sup 2}, for values above #25;~1 GeV{sup 2}, is one of the most significant results to come out of JLab. These results have had a large impact on progress in hadronic physics; and have required a significant rethinking of nucleon structure. The increasingly common use of the double-polarization technique to measure the nucleon form factors, in the last 15 years, has resulted in a dramatic improvement of the quality of all four nucleon electromagnetic form factors, G{sub Ep}, G{sub Mp}, G{sub En} and G{sub Mn}. There is an approved experiment at JLab, GEP(V), to continue the ratio measurements to 12 GeV{sup 2}. A dedicated experimental setup, the Super Bigbite Spectrometer (SBS), will be built for this purpose. It will be equipped with a focal plane polarimeter to measure the polarization of the recoil protons. The scattered electrons will be detected in an electromagnetic calorimeter. In this presentation, I will review the status of the proton elastic electromagnetic form factors and discuss a number of theoretical approaches to describe nucleon form factors.

  1. The nucleon electromagnetic form factors from Lattice QCD

    E-Print Network [OSTI]

    Alexandrou, C; Negele, J W; Tsapalis, A

    2006-01-01T23:59:59.000Z

    We evaluate the isovector nucleon electromagnetic form factors in quenched and full QCD on the lattice using Wilson fermions. In the quenched theory we use a lattice of spatial size 3 fm at beta=6.0 enabling us to reach low momentum transfers and a lowest pion mass of about 400 MeV. In the full theory we use a lattice of spatial size 1.9 fm at beta=5.6 and lowest pion mass of about 380 MeV enabling comparison with the results obtained in the quenched theory. We compare our lattice results to the isovector part of the experimentally measured form factors.

  2. Human factors evaluation of the engineering test reactor control room

    SciTech Connect (OSTI)

    Banks, W.W.; Boone, M.P.

    1981-03-01T23:59:59.000Z

    The Reactor and Process Control Rooms at the Engineering Test Reactor were evaluated by a team of human factors engineers using available human factors design criteria. During the evaluation, ETR, equipment and facilities were compared with MIL-STD-1472-B, Human Engineering design Criteria for Military Systems. The focus of recommendations centered on: (a) displays and controls; placing displays and controls in functional groups; (b) establishing a consistent color coding (in compliance with a standard if possible); (c) systematizing annunciator alarms and reducing their number; (d) organizing equipment in functional groups; and (e) modifying labeling and lines of demarcation.

  3. Fast controller for a unity-power-factor PWM rectifier

    SciTech Connect (OSTI)

    Eissa, M.O.; Leeb, S.B.; Verghese, G.C. [Massachusetts Inst. of Tech., Cambridge, MA (United States). Lab. for Electromagnetic and Electronic Systems] [Massachusetts Inst. of Tech., Cambridge, MA (United States). Lab. for Electromagnetic and Electronic Systems; Stankovic, A.M. [Northeastern Univ., Boston, MA (United States)] [Northeastern Univ., Boston, MA (United States)

    1996-01-01T23:59:59.000Z

    This paper presents an analog implementation of a fast controller for a unity-power-factor (UPF) PWM rectifier. The best settling times of many popular controllers for this type of converter are on the order of a few line cycles, corresponding to bandwidths under 20 Hz. The fast controller demonstrated in this paper can exercise control action at a rate comparable to the switching frequency rather than the line frequency. In order to accomplish this while maintaining unity power factor during steady-state operation, the fast controller employs a ripple-feedback cancellation scheme.

  4. Gamma N Delta Form Factors and Wigner Rotations

    E-Print Network [OSTI]

    Milton Dean Slaughter

    2008-10-28T23:59:59.000Z

    For more than 50 years the Delta N gamma form factors have been studied experimentally, theoretically, and phenomenologically. Although there has been substantial progress in understanding their behavior, there remains much work to be done. A major tool used in many investigations is the Jones-Scadron Delta rest frame parametrization of the three Delta N gamma form factors. We point out that many studies utilizing this parametrization may not account for Wigner rotations and the consequent helicity mixing that ensues when the Delta is not at rest.

  5. Performance analysis of parallel supernodal sparse LU factorization

    SciTech Connect (OSTI)

    Grigori, Laura; Li, Xiaoye S.

    2004-02-05T23:59:59.000Z

    We investigate performance characteristics for the LU factorization of large matrices with various sparsity patterns. We consider supernodal right-looking parallel factorization on a bi-dimensional grid of processors, making use of static pivoting. We develop a performance model and we validate it using the implementation in SuperLU-DIST, the real matrices and the IBM Power3 machine at NERSC. We use this model to obtain performance bounds on parallel computers, to perform scalability analysis and to identify performance bottlenecks. We also discuss the role of load balance and data distribution in this approach.

  6. Factors Influencing the Prices Received for Texas Turkeys.

    E-Print Network [OSTI]

    Halpin, R. B.; Parnell, E. D.; Mountney, G. J.

    1954-01-01T23:59:59.000Z

    1952 300- 'j HENS 250 -Ae THANKSGIVING L 20 27 4 11 18 25 1 8 15 22 29 6 S E PT. OCT. N OV. DEC. i Figure 3. Average number of No. 1 live turkeys pu:. chased per transaction by sex by weeks, six plants, Texci 1951-52. I FALL MARKETING SEASON...Factors Influencing the Prices Received for Texas Turkeys TEXAS AGRICULTURAL EXPERIMENT STATION R. D. LEWIS. DIRECTOR, COLLEGE STATION. TEXAS DIGEST A study was conducted during 1950-53 of the factors influencing the market quality a1 received...

  7. Characterization of Two Sigma Factors in Plant Pathogenesis by Pseudomonas syringae pv. syringae B728a 

    E-Print Network [OSTI]

    Basu Thakur, Poulami

    2012-07-11T23:59:59.000Z

    function (ECF) sigma (?) factors serve as important regulatory factors in responding to various environmental signals. Bioinformatic analysis of the B728a genome has revealed 10 ECF sigma factors, five of which have high levels of sequence similarity...

  8. Children's resiliency, adjustment, and coping: cancer-related, family context, and within-child factors

    E-Print Network [OSTI]

    Newton, Katherine Michele

    2009-05-15T23:59:59.000Z

    ; family context factors of parenting stress and family psychosocial risk; and within-child factors of personal resiliency. These factors were assessed among 37 children with leukemia or lymphoma, one of their caretakers (29 mothers, 7 fathers, 1...

  9. `Perfect ventilation, good sewerage and effective water closets': Urban factors in the development

    E-Print Network [OSTI]

    `Perfect ventilation, good sewerage and effective water closets': Urban factors in the development sanitation ``Perfect ventilation, good sewerage and effective water closets': Urban factors ventilation, good sewerage and effective water closets': Urban factors in the development of modern nursing

  10. Economic investigation of discount factors for agricultural greenhouse gas emission offsets

    E-Print Network [OSTI]

    Kim, Man-Keun

    2005-08-29T23:59:59.000Z

    approaches to discount factors, estimation and incorporation of discount factors procedures are developed. Discount factors would be imposed by credit purchasers due to noncompliance with regulatory program of the credits with GHG program including...

  11. Nitrous Oxide Nitrification and Denitrification 15N Enrichment Factors from Amazon Forest Soils

    E-Print Network [OSTI]

    2006-01-01T23:59:59.000Z

    M. Wahlen. 1997. Stable isotope enrichment in stratosphericthat we know the isotope enrichment factors for nitri?cationmethod for measuring N isotope enrichment factors for nitri?

  12. Energy Price Indices and Discount Factors for Life-Cycle Cost...

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

    0 Energy Price Indices and Discount Factors for Life-Cycle Cost Analysis - 2010 Report describes the 2010 edition of energy price indices and discount factors for performing...

  13. Impact of individual, environmental, and policy level factors on healthcare utilization among United States farmworkers

    E-Print Network [OSTI]

    Hoerster, Katherine D.

    2010-01-01T23:59:59.000Z

    of Individual, Environmental, and Policy Level Factors onof Individual, Environmental, and Policy Level Factors onindividual, environmental, and policy level correlates of

  14. Factor analysis of Galactic globular clusters on structural parameters

    E-Print Network [OSTI]

    O. Eigenson; O. Yatsyk

    2000-11-08T23:59:59.000Z

    Principal component method is used to study galactic globular clusters in 7- and 8-axis space of structural parameters. It is shown that the manifold properties of clusters with this set of parameters is determined mainly by two independent factors. This result may be useful for the theory of formation and evolution of clusters.

  15. Mechanism Based Anticancer Drugs that Degrade Sp Transcription Factors

    E-Print Network [OSTI]

    Chadalapaka, Gayathri

    2013-03-14T23:59:59.000Z

    4 transcription factors. Similar results were observed for a structurally-related triterpenoid, methyl 2-cyano-3,12-dioxooleana-1,9-dien-28-oate (CDDO-Me), which is currently in clinical trials for treatment of leukemia. Celastrol, a naturally...

  16. Factors Affecting Cotton Producers' Choice of Marketing Outlet

    E-Print Network [OSTI]

    Pace, Jason 1979-

    2012-08-16T23:59:59.000Z

    Studies 4 Adoption Studies Employing Multinomial Logistic Regression ?.. 5 Hedging Studies ?????????????????????.. 8 Marketing Studies ????????????????????... 12 Non-cotton and General Commodity Marketing Studies ????. 12 Cotton Marketing Studies... Employing Multinomial Logistic Regression This paper will model the factors that influence several qualitative choices (cash marketing outlets) among cotton producers. The objective of qualitative choice modeling is to determine each explanatory...

  17. Factors Influencing Productivity and Operating Cost of Demand Responsive Transit

    E-Print Network [OSTI]

    Dessouky, Maged

    Factors Influencing Productivity and Operating Cost of Demand Responsive Transit Kurt Palmer Maged of the Americans with Disabilities Act in 1991 operating expenses for Demand Responsive Transit have more than and practices upon productivity and operating cost. ii #12;1 Introduction Demand Responsive Transit (DRT

  18. ELECTRICITY CASE: ECONOMIC COST ESTIMATION FACTORS FOR ECONOMIC

    E-Print Network [OSTI]

    Wang, Hai

    ELECTRICITY CASE: ECONOMIC COST ESTIMATION FACTORS FOR ECONOMIC ASSESSMENT OF TERRORIST ATTACKS Zimmerman, R. CREATE REPORT Under FEMA Grant EMW-2004-GR-0112 May 31, 2005 Center for Risk and Economic #12;2 Abstract The major economic effects of electric power outages are usually associated with three

  19. Environmental Factors Affecting Tropical Cyclone Power Dissipation KERRY EMANUEL

    E-Print Network [OSTI]

    Emanuel, Kerry A.

    - son 1974; Webster et al. 2005), and the Accumulated Cyclone Energy (ACE) index (Bell et al. 2000, the PDI is also accumulated over each year. Annually accumulated integral metrics such as ACE and PDI showEnvironmental Factors Affecting Tropical Cyclone Power Dissipation KERRY EMANUEL Program

  20. CSEM WP 104 Variation of Distribution Factors with Loading

    E-Print Network [OSTI]

    California at Berkeley. University of

    on the topology of the electric power system, the behavior of controllable transmission system elements distribution factors depend on the operating point and topology of an electric power system. However right schemes for transmis- sion rights [4, 5], capacity to flow power on a line or a group of lines

  1. Variation of distribution factors with loading Ross Baldick

    E-Print Network [OSTI]

    Baldick, Ross

    of Texas at Austin. transmission rights [5], [6], capacity to flow power on a line or a group of lines factors depend on the op- erating point and topology of an electric power system. However, it is known) is the relative change in power flow on a particular line due to a change in injection and corresponding

  2. China's terrestrial carbon balance: Contributions from multiple global change factors

    E-Print Network [OSTI]

    Montana, University of

    China's terrestrial carbon balance: Contributions from multiple global change factors Hanqin Tian,1 to be investigated. China is important in determining the global carbon balance in terms of both carbon emission change) on net carbon balance in terrestrial ecosystems of China for the period 1961­2005 were modeled

  3. Factors Contributing to Petroleum Foaming. 2. Synthetic Crude Oil Systems

    E-Print Network [OSTI]

    Kilpatrick, Peter K.

    to the petroleum industry. Nonaqueous foams occur in the production of and refining of crude oil. Crude oil foamsFactors Contributing to Petroleum Foaming. 2. Synthetic Crude Oil Systems Nael N. Zaki, Michael K August 28, 2001 The influence of petroleum asphaltenes and resins on stabilizing model oil foams

  4. Factors Contributing to Petroleum Foaming. 1. Crude Oil Systems

    E-Print Network [OSTI]

    Kilpatrick, Peter K.

    Factors Contributing to Petroleum Foaming. 1. Crude Oil Systems Michael K. Poindexter,*, Nael N production, producers often determine beforehand various processing issues that might be encountered during full-scale production. A host of issues are considered pertinent, some of which include production line

  5. Exogenous and endogenous risk factors management to predict surrender behaviours

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    ;surrender value; which is nothing else than the sum of earned premiums, potentially reduced by contractualExogenous and endogenous risk factors management to predict surrender behaviours Xavier Milhaud is dedicated to surrender risk management), strengthens the necessity to deeply study and understand this risk

  6. Credibility Factors in Professional Journalists' Versus User-Created Blogs

    E-Print Network [OSTI]

    Drinkwater, Kaitlyn S.

    2010-07-14T23:59:59.000Z

    in this new medium to do a manifest content analysis of blogs. The findings of these factors may be used more in user-generated (a generic term for online content created by regular people) blogs than those maintained by professional journalists. This may...

  7. ORIGINAL PAPER Climatic variability and other site factor influences

    E-Print Network [OSTI]

    Boyer, Edmond

    . Rodriguez-Garcia :F. Bravo Sustainable Forest Management Research Institute UVA-INIA, Avenida de Madrid, 44-site factors (e.g., soil and overstory structure in harvested stands, cone bank in burnt stands) make the stand Puettmann and Ammer 2007). Research in this area can be used for sustainable and multiple-objective stand

  8. The Influence of Non-technical Factors on Code Review

    E-Print Network [OSTI]

    Godfrey, Michael W.

    The Influence of Non-technical Factors on Code Review Olga Baysal, Oleksii Kononenko, Reid Holmes, personal and organizational aspects, WebKit, open source software I. INTRODUCTION Many software development research has found that organizational structure can influence software quality. Nagappan et al

  9. Human Factors Related to a Virtual Reality Surgical Simulator: The

    E-Print Network [OSTI]

    Bowden, Richard

    and therefore, reductions in patient intervention costs (Banta, 1993). #12; Human Factors Related to a Virtual Training System in the light of feedback from surgeons. Initial work to produce finite element models are displayed. The training system has been well received by the surgeons and represents a new and potentially

  10. Solar Correction Factors of Building Envelope in Tebei

    E-Print Network [OSTI]

    Wang, D.; Tang, M.

    2006-01-01T23:59:59.000Z

    Tebei has very rich solar energy in China and needs heating in winter,but the present energy building design code has no solar correction factor for the overall heat transfer coefficient of building envelope for Tebei. Based on the typical year...

  11. Key Factors for Digital Collections August 7, 2007

    E-Print Network [OSTI]

    by Fondren's Digital Library Initiative We evaluate digital projects on a case by case basis. There is no oneKey Factors for Digital Collections August 7, 2007 Rice University Digital Repository Supported formula for this process and in fact welcome open discussion on potential digital projects

  12. Thermoelectric power factor in semiconductors with buried epitaxial semimetallic nanoparticles

    E-Print Network [OSTI]

    Bowers, John

    Thermoelectric power factor in semiconductors with buried epitaxial semimetallic nanoparticles J. M, mobility, and Seebeck coefficient of these materials and discuss their potential for use in thermoelectric on thermoelectric materials has focused on the ability of heterostructures and quantum con- finement to increase

  13. Original article Risk factors for methicillin-resistant Staphylococcus aureus

    E-Print Network [OSTI]

    Boyer, Edmond

    Original article Risk factors for methicillin-resistant Staphylococcus aureus (MRSA) infection-resistant Staphylococcus aureus (MRSA) infection in dogs and cats were investigated in an unmatched case-control study MRSA cases and 92 controls with methicillin-susceptible S. aureus (MSSA) infection. The association

  14. Imperfect Isolation: Factors and Filters Shaping Madagascar's Extant Vertebrate Fauna

    E-Print Network [OSTI]

    Vences, Miguel

    Imperfect Isolation: Factors and Filters Shaping Madagascar's Extant Vertebrate Fauna Karen E. Samonds1 *, Laurie R. Godfrey2 , Jason R. Ali3 , Steven M. Goodman4,5 , Miguel Vences6 , Michael R itself provides evidence of the island's paleogeographic history. Citation: Samonds KE, Godfrey LR, Ali

  15. A Comprehensive Contribution Factor Method for Congestion Management

    E-Print Network [OSTI]

    be combined with demand side (load) management to solve the congestion. The congestion management scheme generator re-dispatching alone or combined with demand side management due to the availability of load1 A Comprehensive Contribution Factor Method for Congestion Management H. Song, Student Member

  16. Proximate Population Factors and Deforestation in Tropical Agricultural Frontiers

    E-Print Network [OSTI]

    Lopez-Carr, David

    Proximate Population Factors and Deforestation in Tropical Agricultural Frontiers David L. Carr are significantly associated at the global and regional scales, evidence for population links to deforestation of thought on population­environment theories relevant to deforestation in tropical agricultural frontiers

  17. Prediction and Informative Risk Factor Selection of Bone Diseases

    E-Print Network [OSTI]

    Zhang, Aidong

    data and use these integrated features to effectively predict osteoporosis and bone fractures. We; disease memory; osteoporosis; bone fracture. ! 1 INTRODUCTION Risk factor (RF) analysis based on patients on the study of osteoporosis and bone fracture prediction. Over the past few decades, osteoporosis has been

  18. Human Factors Evaluation of Advanced Electric Power Grid Visualization Tools

    SciTech Connect (OSTI)

    Greitzer, Frank L.; Dauenhauer, Peter M.; Wierks, Tamara G.; Podmore, Robin

    2009-04-01T23:59:59.000Z

    This report describes initial human factors evaluation of four visualization tools (Graphical Contingency Analysis, Force Directed Graphs, Phasor State Estimator and Mode Meter/ Mode Shapes) developed by PNNL, and proposed test plans that may be implemented to evaluate their utility in scenario-based experiments.

  19. Measurements of Form Factors with the BaBar Experiment

    SciTech Connect (OSTI)

    Li, Selina Z.; /SLAC

    2011-08-25T23:59:59.000Z

    Selected recent results on measurements of form factors by the BaBar Collaboration are reviewed, including e{sup +}e{sup -} {yields} {eta}{prime}{gamma}, leptonic and semileptonic charm decays from data collected at or near the {Upsilon}(4S) resonance.

  20. Contemporary Mathematics The merit factor of binary sequence families

    E-Print Network [OSTI]

    Jedwab, Jonathan

    Contemporary Mathematics The merit factor of binary sequence families constructed from m-sequences sequence families obtained from an initial binary sequence family using a "negaperiodic" and a "periodic" construction. When the initial sequences are m-sequences, both of the constructed families have the same

  1. Solar Correction Factors of Building Envelope in Tebei 

    E-Print Network [OSTI]

    Wang, D.; Tang, M.

    2006-01-01T23:59:59.000Z

    Tebei has very rich solar energy in China and needs heating in winter,but the present energy building design code has no solar correction factor for the overall heat transfer coefficient of building envelope for Tebei. Based on the typical year...

  2. A PM10 emission factor for free stall dairies

    E-Print Network [OSTI]

    Goodrich, Lee Barry

    2006-08-16T23:59:59.000Z

    approximately 1840 head of milking cattle. The field sampling results were used in the EPA approved dispersion model Industrial Source Complex Short Term version 3 (ISCST-v3) to estimate emission fluxes and ultimately a seasonally corrected emission factor for a...

  3. Optimization Methods for Binary Sequences The Merit Factor Problem

    E-Print Network [OSTI]

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

  4. Panel Damping Loss Factor Estimation Using The Random Decrement Technique

    E-Print Network [OSTI]

    Dande, Himanshu Amol

    2010-12-10T23:59:59.000Z

    The use of the Random Decrement Technique (RDT) for estimating panel damping loss factors ranging from 1% to 10% is examined in a systematic way, with a focus on establishing the various parameters one must specify to use the technique to the best...

  5. Measurement of Gamma Knife registered helmet factors using MOSFETs

    SciTech Connect (OSTI)

    Kurjewicz, Laryssa; Berndt, Anita [Department of Physics, University of Winnipeg, 515 Portage Avenue, Winnipeg, Manitoba R3B 2E9 (Canada); Division of Medical Physics, CancerCare Manitoba, 675 McDermot Avenue, Winnipeg, Manitoba R3E 0V9 (Canada); Winnipeg Centre for Gamma Knife Surgery, Health Sciences Centre, Winnipeg Regional Health Authority, Winnipeg MB R3E 0V9 (Canada); Section of Neurosurgery, Department of Surgery, Department of Radiology, University of Manitoba, Winnipeg MB R3E 0V9 (Canada) and Department of Physics and Astronomy, University of Manitoba, Winnipeg MB R3E 0V9 (Canada)

    2007-03-15T23:59:59.000Z

    The relative dose rate for the different Gamma Knife registered helmets (4, 8, 14, and 18 mm) is characterized by their respective helmet factors. Since the plateau of the dose profile for the 4 mm helmet is at most 1 mm wide, detector choices are limited. Traditionally helmet factors have been measured using 1x1x1 mm{sup 3} thermoluminescent dosimeters (TLDs). However, these are time-consuming, cumbersome measurements. This article investigates the use of metal-oxide-semiconductor field effect transistors (MOSFETs) (active area of 0.2x0.2 mm{sup 2}) as a more accurate and convenient dosimeter. Their suitability for these measurements was confirmed by basic characterization measurements. Helmet factors were measured using both MOSFETs and the established TLD approach. A custom MOSFET cassette was designed in analogy to the Elekta TLD cassette (Elekta Instruments AB) for use with the Elekta dosimetry sphere. Although both dosimeters provided values within 3% of the manufacturer's suggestion, MOSFETs provided superior accuracy and precision, in a fraction of the time required for the TLD measurements. Thus, MOSFETs proved to be a reasonable alternative to TLDs for performing helmet factor measurements.

  6. Nucleon form factors program with SBS at JLAB

    SciTech Connect (OSTI)

    Wojtsekhowski, Bogdan B. [JLAB

    2014-12-01T23:59:59.000Z

    The physics of the nucleon form factors is the basic part of the Jefferson Laboratory program. We review the achievements of the 6-GeV era and the program with the 12- GeV beam with the SBS spectrometer in Hall A, with a focus on the nucleon ground state properties.

  7. absorption buildup factors: Topics by E-print Network

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

    absorption buildup factors 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 RIS-M-2204 RECOMMENDATIONS...

  8. Human factors review for Severe Accident Sequence Analysis (SASA)

    SciTech Connect (OSTI)

    Krois, P.A.; Haas, P.M.; Manning, J.J.; Bovell, C.R.

    1984-01-01T23:59:59.000Z

    The paper will discuss work being conducted during this human factors review including: (1) support of the Severe Accident Sequence Analysis (SASA) Program based on an assessment of operator actions, and (2) development of a descriptive model of operator severe accident management. Research by SASA analysts on the Browns Ferry Unit One (BF1) anticipated transient without scram (ATWS) was supported through a concurrent assessment of operator performance to demonstrate contributions to SASA analyses from human factors data and methods. A descriptive model was developed called the Function Oriented Accident Management (FOAM) model, which serves as a structure for bridging human factors, operations, and engineering expertise and which is useful for identifying needs/deficiencies in the area of accident management. The assessment of human factors issues related to ATWS required extensive coordination with SASA analysts. The analysis was consolidated primarily to six operator actions identified in the Emergency Procedure Guidelines (EPGs) as being the most critical to the accident sequence. These actions were assessed through simulator exercises, qualitative reviews, and quantitative human reliability analyses. The FOAM descriptive model assumes as a starting point that multiple operator/system failures exceed the scope of procedures and necessitates a knowledge-based emergency response by the operators. The FOAM model provides a functionally-oriented structure for assembling human factors, operations, and engineering data and expertise into operator guidance for unconventional emergency responses to mitigate severe accident progression and avoid/minimize core degradation. Operators must also respond to potential radiological release beyond plant protective barriers. Research needs in accident management and potential uses of the FOAM model are described. 11 references, 1 figure.

  9. Engineering phenolics metabolism in the grasses using transcription factors

    SciTech Connect (OSTI)

    Grotewold, Erich [The Ohio State University

    2013-07-26T23:59:59.000Z

    The economical competitiveness of agriculture-derived biofuels can be significantly enhanced by increasing biomass/acre yields and by furnishing the desired carbon balance for facilitating liquid fuel production (e.g., ethanol) or for high-energy solid waste availability to be used as biopower (e.g., for electricity production). Biomass production and carbon balance are tightly linked to the biosynthesis of phenolic compounds, which are found in crops and in agricultural residues either as lignins, as part of the cell wall, or as soluble phenolics which play a variety of functions in the biology of plants. The grasses, in particular maize, provide the single major source of agricultural biomass, offering significant opportunities for increasing renewable fuel production. Our laboratory has pioneered the use of transcription factors for manipulating plant metabolic pathways, an approach that will be applied here towards altering the composition of phenolic compounds in maize. Previously, we identified a small group of ten maize R2R3-MYB transcription factors with all the characteristics of regulators of different aspects of phenolic biosynthesis. Here, we propose to investigate the participation of these R2R3-MYB factors in the regulation of soluble and insoluble maize phenolics, using a combination of over-expression and down-regulation of these transcription factors in transgenic maize cultured cells and in maize plants. Maize cells and plants altered in the activity of these regulatory proteins will be analyzed for phenolic composition by targeted metabolic profiling. Specifically, we will I) Investigate the effect of gain- and loss-of-function of a select group of R2R3-MYB transcription factors on the phenolic composition of maize plants and II) Identify the biosynthetic genes regulated by each of the selected R2R3-MYB factors. While a likely outcome of these studies are transgenic maize plants with altered phenolic composition, this research will significantly contribute to understanding how different branches of the phenolic biosynthetic grid are regulated. Given the conservation of the selected regulators in other grasses, results derived from this project are likely to provide important tools for the manipulation of phenolic compounds in other emerging biomass producers (e.g., switchgrass or miscanthus), either through conventional breeding techniques (e.g., marker-assisted breeding) or by using transgenic approaches.

  10. Combined factor analysis of the WISC-III and CMS: does the resulting factor structure discriminate among children with and without clinical disorders?

    E-Print Network [OSTI]

    Siekierski, Becky Mayes

    2006-10-30T23:59:59.000Z

    . was the only one to report that it was the best model for the data. Examination of the factors in special populations and across ages. Slate and Jones (1997) compared male and female children with mental retardation on the WISC- III factor structure..., Coding, (and Picture Arrangement). Note that Slate and Jones allowed two subtests to load on two factors while Vocabulary did not contribute enough to warrant interpretation on any factor. 12 In a longitudinal study by Watkins and Canivez (2001...

  11. The Human Factors and Ergonomics EFA The field of Human Factors and Ergonomics (HFE) represents an increasingly important engineering specialty. The

    E-Print Network [OSTI]

    Kusiak, Andrew

    The Human Factors and Ergonomics EFA The field of Human Factors and Ergonomics (HFE) represents cognitive characteristics and ergonomics considers physical characteristics. The HFE EFA builds allow for an emphasis in human factors (HF) or ergonomics (Ergo). Required courses: Semester Course

  12. The Factors of Chronic Kidney Disease: Diabetes, Hypertension, Smoking, Drinking, Betelnut Chewing

    E-Print Network [OSTI]

    Chen, Chaur-Chin

    The Factors of Chronic Kidney Disease: Diabetes, Hypertension, Smoking, Drinking, Betelnut Chewing CKD 75 CKD Abstract The risk factors of Chronic Kidney Disease (CKD), including diabetes risk factors in a population-based cohort. Compared with single risk factors, diabetes (odds ratio 1

  13. 2009 Guidelines to Defra / DECC's GHG Conversion Factors for Company Reporting

    E-Print Network [OSTI]

    . OVERSEAS ELECTRICITY EMISSION FACTORS (ANNEX 10) 54 ANNEX: EXTRACT FROM THE CRG PASSENGER TRANSPORT CO2 (ANNEX 6 AND ANNEX 7) 12 Previous Approach 12 New Passenger Air Transport CO2 Emission Factors (Annex 6) 13 New Freight Air Transport CO2 Emission Factors (Annex 7) 18 New Air Transport Emission Factors

  14. 2010 Guidelines to Defra / DECC's GHG Conversion Factors for Company Reporting

    E-Print Network [OSTI]

    update 44 Passenger Air Transport Direct CO2 Emission Factors (Annex 6) 44 Freight Air Transport Direct CO2 Emission Factors (Annex 7) 49 Air Transport Direct Emission Factors for CH4 and N2O 52 Air. ELECTRICITY CONVERSION FACTORS (ANNEX 3) 10 Summary of changes since previous update 10 Direct Emissions from

  15. Factors driving wind power development in the United States

    SciTech Connect (OSTI)

    Bird, Lori A.; Parsons, Brian; Gagliano, Troy; Brown, Matthew H.; Wiser, Ryan H.; Bolinger, Mark

    2003-05-15T23:59:59.000Z

    In the United States, there has been substantial recent growth in wind energy generating capacity, with growth averaging 24 percent annually during the past five years. About 1,700 MW of wind energy capacity was installed in 2001, while another 410 MW became operational in 2002. This year (2003) shows promise of significant growth with more than 1,500 MW planned. With this growth, an increasing number of states are experiencing investment in wind energy projects. Wind installations currently exist in about half of all U.S. states. This paper explores the key factors at play in the states that have achieved a substantial amount of wind energy investment. Some of the factors that are examined include policy drivers, such as renewable portfolio standards (RPS), federal and state financial incentives, and integrated resource planning; as well as market drivers, such as consumer demand for green power, natural gas price volatility, and wholesale market rules.

  16. Experimental realisation of Shor's quantum factoring algorithm using qubit recycling

    E-Print Network [OSTI]

    Enrique Martin-Lopez; Anthony Laing; Thomas Lawson; Roberto Alvarez; Xiao-Qi Zhou; Jeremy L. O'Brien

    2012-10-24T23:59:59.000Z

    Quantum computational algorithms exploit quantum mechanics to solve problems exponentially faster than the best classical algorithms. Shor's quantum algorithm for fast number factoring is a key example and the prime motivator in the international effort to realise a quantum computer. However, due to the substantial resource requirement, to date, there have been only four small-scale demonstrations. Here we address this resource demand and demonstrate a scalable version of Shor's algorithm in which the n qubit control register is replaced by a single qubit that is recycled n times: the total number of qubits is one third of that required in the standard protocol. Encoding the work register in higher-dimensional states, we implement a two-photon compiled algorithm to factor N=21. The algorithmic output is distinguishable from noise, in contrast to previous demonstrations. These results point to larger-scale implementations of Shor's algorithm by harnessing scalable resource reductions applicable to all physical architectures.

  17. The quantum walk search algorithm: Factors affecting efficiency

    E-Print Network [OSTI]

    Neil B. Lovett; Matthew Everitt; Robert M. Heath; Viv Kendon

    2011-10-21T23:59:59.000Z

    We numerically study the quantum walk search algorithm of Shenvi, Kempe and Whaley [PRA \\textbf{67} 052307] and the factors which affect its efficiency in finding an individual state from an unsorted set. Previous work has focused purely on the effects of the dimensionality of the dataset to be searched. Here, we consider the effects of interpolating between dimensions, connectivity of the dataset, and the possibility of disorder in the underlying substrate: all these factors affect the efficiency of the search algorithm. We show that, as well as the strong dependence on the spatial dimension of the structure to be searched, there are also secondary dependencies on the connectivity and symmetry of the lattice, with greater connectivity providing a more efficient algorithm. In addition, we also show that the algorithm can tolerate a non-trivial level of disorder in the underlying substrate.

  18. Computing modified Newton directions using a partial Cholesky factorization

    SciTech Connect (OSTI)

    Forsgren, A. [Royal Inst. of Tech., Stockholm (Sweden). Dept. of Mathematics; Gill, P.E. [California Univ., San Diego, La Jolla, CA (United States); Murray, W. [Stanford Univ., CA (United States). Systems Optimization Lab.

    1993-03-01T23:59:59.000Z

    The effectiveness of Newton`s method for finding an unconstrained minimizer of a strictly convex twice continuously differentiable function has prompted the proposal of various modified Newton inetliods for the nonconvex case. Linesearch modified Newton methods utilize a linear combination of a descent direction and a direction of negative curvature. If these directions are sufficient in a certain sense, and a suitable linesearch is used, the resulting method will generate limit points that satisfy the second-order necessary conditions for optimality. We propose an efficient method for computing a descent direction and a direction of negative curvature that is based on a partial Cholesky factorization of the Hessian. This factorization not only gives theoretically satisfactory directions, but also requires only a partial pivoting strategy, i.e., the equivalent of only two rows of the Schur complement need be examined at each step.

  19. Computing modified Newton directions using a partial Cholesky factorization

    SciTech Connect (OSTI)

    Forsgren, A. (Royal Inst. of Tech., Stockholm (Sweden). Dept. of Mathematics); Gill, P.E. (California Univ., San Diego, La Jolla, CA (United States)); Murray, W. (Stanford Univ., CA (United States). Systems Optimization Lab.)

    1993-03-01T23:59:59.000Z

    The effectiveness of Newton's method for finding an unconstrained minimizer of a strictly convex twice continuously differentiable function has prompted the proposal of various modified Newton inetliods for the nonconvex case. Linesearch modified Newton methods utilize a linear combination of a descent direction and a direction of negative curvature. If these directions are sufficient in a certain sense, and a suitable linesearch is used, the resulting method will generate limit points that satisfy the second-order necessary conditions for optimality. We propose an efficient method for computing a descent direction and a direction of negative curvature that is based on a partial Cholesky factorization of the Hessian. This factorization not only gives theoretically satisfactory directions, but also requires only a partial pivoting strategy, i.e., the equivalent of only two rows of the Schur complement need be examined at each step.

  20. Dirac equation in low dimensions: The factorization method

    E-Print Network [OSTI]

    J. A. Sanchez-Monroy; C. J. Quimbay

    2014-09-30T23:59:59.000Z

    We present a general approach to solve the (1+1) and (2+1)-dimensional Dirac equation in the presence of static scalar, pseudoscalar and gauge potentials, for the case in which the potentials have the same functional form and thus the factorization method can be applied. We show that the presence of electric potentials in the Dirac equation leads to a two Klein-Gordon equations including an energy-dependent potential. We then generalize the factorization method for the case of energy-dependent Hamiltonians. Additionally, the shape invariance is generalized for a specific class of energy-dependent Hamiltonians. We also present a condition for the absence of the Klein's paradox (stability of the Dirac sea), showing how Dirac particles in low dimensions can be confined for a wide family of potentials.

  1. Friction Factor Measurements in an Equally Spaced Triangular Tube Array

    SciTech Connect (OSTI)

    Vassallo P, Symolon P

    2007-03-19T23:59:59.000Z

    Friction factor data for adiabatic cross-flow of water in a staggered tube array was obtained over a Reynolds number range (based on hydraulic diameter and gap velocity) of about 10,000 to 250,000. The tubes were 12.7mm (0.5 inch) outer diameter, in a uniformly spaced triangular arrangement with a pitch-to-diameter ratio of 1.5. The friction factor was compared to several literature correlations, and was found to be best matched by the Idelchik correlation. Other correlations were found to vary significantly from the test data. Based on the test data, a new correlation is proposed for this tube bundle geometry which covers the entire Reynolds number range tested.

  2. ? b ? ? ? + ? ? form factors and differential branching fraction from lattice QCD

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

    Detmold, William; Lin, C.-J. David; Meinel, Stefan; Wingate, Matthew

    2013-04-01T23:59:59.000Z

    We present the first lattice QCD determination of the ?b?? transition form factors that govern the rare baryonic decays ?b??l?l? at leading order in heavy-quark effective theory. Our calculations are performed with 2+1 flavors of domain-wall fermions, at two lattice spacings and with pion masses down to 227 MeV. Three-point functions with a wide range of source-sink separations are used to extract the ground-state contributions. The form factors are extrapolated to the physical values of the light-quark masses and to the continuum limit. We use our results to calculate the differential branching fractions for ?b??l?l? with l=e, ?, ? within the standard model. We find agreement with a recent CDF measurement of the ?b?????? differential branching fraction.

  3. Human factors evaluation of electroluminescent display. number sign. 1

    SciTech Connect (OSTI)

    Auflick, J.L. (EG and G Idaho, Inc., Idaho Falls, ID (USA))

    1989-08-01T23:59:59.000Z

    This report consists of an an electroluminescent display, done by scientists and researchers in the Human Factors Research Unit at EG G, Idaho, Inc. The purpose of this evaluation was to examine the Sunlight Readability'' of one electroluminescent (EL) display; a display which may be incorporated into a new generation of US Army diesel generators. The basic finding of this evaluation is that this particular EL display is not sunlight readable. 2 figs., 10 tabs.

  4. Production factors of a Hereford herd in Menard County, Texas

    E-Print Network [OSTI]

    Gonzalez, Vidal

    1974-01-01T23:59:59.000Z

    PRODUCTION PACTORS OF A HEREFORD HERD IN MENARD COUNTY, TEXAS A Thesis by VIDAL GONZALEZ, JR. Submitted to the Graduate College of Texas ASM University in partial fulfillment of. the requirement for the degree of MASTER OF SCIENCE August... 1974 Major Subject: Animal Science PRODUCTION FACTORS OF A HEREFORD HERD IN NENARD COUNTY, TEXAS A Thesis VIDAL GONZALEZ, JR. Approved as to style and content by: ( h irman of Committee (Membe ) (Head of Department) Hember) August 1974...

  5. Amplitudes for High Energy Factorization via BCFW recursion

    E-Print Network [OSTI]

    Serino, Mirko

    2015-01-01T23:59:59.000Z

    Recently, an extension of the BCFW on-shell recursion relation suitable to compute gauge invariant scattering amplitudes with off-shell particles has been presented for Yang-Mills theories with fermions. In particular, 4- and 5-point amplitudes have been completely worked out. The results are needed for the study of multi-parton scattering at hadron colliders in the framework of High Energy Factorization (HEF).

  6. Factors Analysis on Safety of Indoor Air Quality

    E-Print Network [OSTI]

    Luo, Q.; Liu, Z.; Xiong, J.

    2006-01-01T23:59:59.000Z

    . Handbook on Review and Detection of Indoor Environment [M]. Beijing: Mechanical Industry Press, 2003: 1-5.(In Chinese) [2] Pan Xiaochuan. Review on Indoor Air Pollution and Its Harmfulness to Health [J]. Chin. Prev. Med., 2002,3(3):167-169 (in... of Urban Construction, Nanhua University, Hengyang, P.R.China hunanluoqinghai@163.com Abstract: Influence factors on safety of indoor air quality (IAQ) were analyzed in this paper. Some regeneration compositions resulting from potential indoor...

  7. Factors Limiting Complete Tumor Ablation by Radiofrequency Ablation

    SciTech Connect (OSTI)

    Paulet, Erwan, E-mail: erwanpaulet@yahoo.fr; Aube, Christophe [University Hospital Angers, Department of Radiology (France); Pessaux, Patrick [University Hospital Angers, Department of Visceral Surgery (France); Lebigot, Jerome [University Hospital Angers, Department of Radiology (France); Lhermitte, Emilie [University Hospital Angers, Department of Visceral Surgery (France); Oberti, Frederic [University Hospital Angers, Department of Hepato-Gastroenterology (France); Ponthieux, Anne [University Hospital Angers, Clinical Research Center (France); Cales, Paul [University Hospital Angers, Department of Hepato-Gastroenterology (France); Ridereau-Zins, Catherine [University Hospital Angers, Department of Radiology (France); Pereira, Philippe L. [Eberhard-Karls University, Department of Diagnostic Radiology (Germany)

    2008-01-15T23:59:59.000Z

    The purpose of this study was to determine radiological or physical factors to predict the risk of residual mass or local recurrence of primary and secondary hepatic tumors treated by radiofrequency ablation (RFA). Eighty-two patients, with 146 lesions (80 hepatocellular carcinomas, 66 metastases), were treated by RFA. Morphological parameters of the lesions included size, location, number, ultrasound echogenicity, computed tomography density, and magnetic resonance signal intensity were obtained before and after treatment. Parameters of the generator were recorded during radiofrequency application. The recurrence-free group was statistically compared to the recurrence and residual mass groups on all these parameters. Twenty residual masses were detected. Twenty-nine lesions recurred after a mean follow-up of 18 months. Size was a predictive parameter. Patients' sex and age and the echogenicity and density of lesions were significantly different for the recurrence and residual mass groups compared to the recurrence-free group (p < 0.05). The presence of an enhanced ring on the magnetic resonance control was more frequent in the recurrence and residual mass groups. In the group of patients with residual lesions, analysis of physical parameters showed a significant increase (p < 0.05) in the time necessary for the temperature to rise. In conclusion, this study confirms risk factors of recurrence such as the size of the tumor and emphasizes other factors such as a posttreatment enhanced ring and an increase in the time necessary for the rise in temperature. These factors should be taken into consideration when performing RFA and during follow-up.

  8. Utility & Regulatory Factors Affecting Cogeneration & Independent Power Plant Design & Operation

    E-Print Network [OSTI]

    Felak, R. P.

    UTILITY & REGULATORY FACTORS AFFECTiNG COGENERATION & INDEPENDENT POWER PLANT DESIGN & OPERATION Richard P. Felak General Electric Company Schenectady, New York ABSTRACT In specifying a cogeneration or independent power plant, the owner... should be especially aware of the influences which electric utilities and regulatory bodies will have on key parameters such as size, efficiency, design. reliability/ availabilitY, operating capabilities and modes, etc. This paper will note examples...

  9. Ets factors regulate the polycystic kidney disease-1 promoter

    SciTech Connect (OSTI)

    Puri, Sanjeev [Department of Biochemistry and Molecular Biology, and Kidney Institute, University of Kansas Medical Center, Kansas City, KS 66160 (United States); Department of Biochemistry, Panjab University, Chandigarh 160014 (India); Rodova, Marianna [Department of Biochemistry and Molecular Biology, and Kidney Institute, University of Kansas Medical Center, Kansas City, KS 66160 (United States); Islam, M. Rafiq [Department of Biochemistry and Molecular Biology, and Kidney Institute, University of Kansas Medical Center, Kansas City, KS 66160 (United States); Department of Chemistry/Physics, Northwest Missouri State University, Maryville, MO 64468 (United States); Magenheimer, Brenda S. [Department of Biochemistry and Molecular Biology, and Kidney Institute, University of Kansas Medical Center, Kansas City, KS 66160 (United States); Maser, Robin L. [Department of Biochemistry and Molecular Biology, and Kidney Institute, University of Kansas Medical Center, Kansas City, KS 66160 (United States); Calvet, James P. [Department of Biochemistry and Molecular Biology, and Kidney Institute, University of Kansas Medical Center, Kansas City, KS 66160 (United States)]. E-mail: jcalvet@kumc.edu

    2006-04-21T23:59:59.000Z

    The Ets family of transcription factors consists of a group of highly conserved sequence-specific DNA binding proteins that functionally cooperate with other transcription factors to regulate a number of diverse cellular processes including proliferation, differentiation, and apoptosis. We have analyzed a 3.3 kb 5'-upstream region of the human PKD1 promoter, using transient transfection in HEK293T cells and Drosophila SL2 cells, to demonstrate that the PKD1 promoter is a target of Ets family transcription factors. Our studies showed that PKD1 promoter-luciferase reporter gene expression is downregulated by cotransfected Fli-1 and is upregulated by cotransfected Ets-1. Using deletion constructs, we demonstrated that the sequences responding to Fli-1 and Ets-1 lie within the -200 to +33 bp proximal promoter. This region was found to contain two putative Ets response elements (EREs): an upstream (Ets-A) sequence 5'-CGGAA-3' (-181 to -185) and a downstream (Ets-B) sequence 5'-CGGAT-3' (-129 to -133). Site-directed mutagenesis indicated that both EREs are functional. A Fli-1 DNA binding domain mutant construct (W321R), which is incapable of binding DNA, was unable to inhibit basal promoter activity. In contrast, a Fli-1 DNA binding domain truncation mutant construct, which only contains the DNA binding domain and lacks the transactivation domain, was able to inhibit. These results suggest that the effect of Fli-1 is through direct binding to these EREs. Direct binding of Fli-1 and Ets-1 to the Ets-A and Ets-B sites was supported by electrophoretic mobility shift assays. Lastly, competition between Fli-1 and Ets-1 for the two EREs was demonstrated by showing that increasing amounts of Ets-1 could overcome Fli-1 repression of promoter activity. Taken together, these experiments define the proximal PKD1 promoter region as a potential target of Ets family transcription factors.

  10. Method for determining formation quality factor from seismic data

    DOE Patents [OSTI]

    Taner, M. Turhan; Treitel, Sven

    2005-08-16T23:59:59.000Z

    A method is disclosed for calculating the quality factor Q from a seismic data trace. The method includes calculating a first and a second minimum phase inverse wavelet at a first and a second time interval along the seismic data trace, synthetically dividing the first wavelet by the second wavelet, Fourier transforming the result of the synthetic division, calculating the logarithm of this quotient of Fourier transforms and determining the slope of a best fit line to the logarithm of the quotient.

  11. A critical evaluation of factors affecting reservoir yield estimates

    E-Print Network [OSTI]

    Bergman, Carla Elaine

    1987-01-01T23:59:59.000Z

    Statement of Problem Estimation of reservoir yield is fundamental to water resources planning and management. Effective management of the surface water resource of a river basin requires an understanding of the amount of water which can be provided... and approaches used in handling various complicating factors. Water supply planning and management involves complex institutional, legal, hydrologic, and physical systems. Streamflow, reservoir sedimentation, evaporation, water demands, and other variables...

  12. Behavioral ecology of striped skunk: factors influencing urban rabies management

    E-Print Network [OSTI]

    Ruffino, Denise Marie

    2009-05-15T23:59:59.000Z

    interactions between human beings and potential rabies vectors (Hanlon et al. 1999), can reduce the chance of disease transmission to people and pets, it is important to note the reverse is true as well. Within urban/suburban environments, habitat... of mortality factors, common in rural areas, may serve to increase urban skunk survival rates (Riley et al. 1998), while also increasing the threat of disease transmission (Prange et al. 2003). In a comparison study conducted by Gehrt (2005), disease...

  13. Method for factor analysis of GC/MS data

    DOE Patents [OSTI]

    Van Benthem, Mark H; Kotula, Paul G; Keenan, Michael R

    2012-09-11T23:59:59.000Z

    The method of the present invention provides a fast, robust, and automated multivariate statistical analysis of gas chromatography/mass spectroscopy (GC/MS) data sets. The method can involve systematic elimination of undesired, saturated peak masses to yield data that follow a linear, additive model. The cleaned data can then be subjected to a combination of PCA and orthogonal factor rotation followed by refinement with MCR-ALS to yield highly interpretable results.

  14. Factors Impacting EGR Cooler Fouling - Main Effects and Interactions |

    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 in RepresentativeDepartmentEnergy Factors Affecting PMU Installation

  15. Chiral Limit of Nucleon Lattice Electromagnetic Form Factors

    E-Print Network [OSTI]

    Wilcox, W; Liu Ke Feng; Wilcox, Walter; Draper, Terrence; Liu, Keh-Fei

    1992-01-01T23:59:59.000Z

    We calculate electric and magnetic form factors of protons and neutrons in quenched Monte Carlo lattice QCD on a $16^3\\times 24$ lattice at $\\beta = 6.0$ using Wilson fermions. We employ a method which characterizes one of the nucleon fields as a fixed zero-momentum secondary source. Extrapolating the overall data set to the chiral limit, we find acceptable fits for either dipole or monopole forms and extract proton and neutron magnetic moments, the magnitude of which are $10$ to $15\\%$ low compared to experiment. In the extrapolation of the dipole fit of the form factors, we find that the dipole to nucleon mass ratio is about $7\\%$ low compared to experiment. In addition, we obtain positive values of the neutron electric form factor, which, however, are poorly represented by a popular phenomenological form at intermediate to small $\\kappa$ values. A zero-momentum technique for extracting hadron magnetic moments is briefly discussed and shown to yield unrealistically small magnetic moment values.

  16. Transfer Factors for Contaminant Uptake by Fruit and Nut Trees

    SciTech Connect (OSTI)

    Napier, Bruce A.; Fellows, Robert J.; Minc, Leah D.

    2013-11-20T23:59:59.000Z

    Transfer of radionuclides from soils into plants is one of the key mechanisms for long-term contamination of the human food chain. Nearly all computer models that address soil-to-plant uptake of radionuclides use empirically-derived transfer factors to address this process. Essentially all available soil-to-plant transfer factors are based on measurements in annual crops. Because very few measurements are available for tree fruits, samples were taken of alfalfa and oats and the stems, leaves, and fruits and nuts of almond, apple, apricot, carob, fig, grape, nectarine, pecan, pistachio (natural and grafted), and pomegranate, along with local surface soil. The samples were dried, ground, weighed, and analyzed for trace constituents through a combination of induction-coupled plasma mass spectrometry and instrumental neutron activation analysis for a wide range of naturally-occurring elements. Analysis results are presented and converted to soil-to-plant transfer factors. These are compared to commonly used and internationally recommended values. Those determined for annual crops are very similar to commonly-used values; those determined for tree fruits show interesting differences. Most macro- and micronutrients are slightly reduced in fruits; non-essential elements are reduced further. These findings may be used in existing computer models and may allow development of tree-fruit-specific transfer models.

  17. Human Factors Issues For Multi-Modular Reactor Units

    SciTech Connect (OSTI)

    Tuan Q Tran; Humberto E. Garcia; Ronald L. Boring; Jeffrey C. Joe; Bruce P. Hallbert

    2007-08-01T23:59:59.000Z

    Smaller and multi-modular reactor (MMR) will be highly technologically-advanced systems allowing more system flexibility to reactors configurations (e.g., addition/deletion of reactor units). While the technical and financial advantages of systems may be numerous, MMR presents many human factors challenges that may pose vulnerability to plant safety. An important human factors challenge in MMR operation and performance is the monitoring of data from multiple plants from centralized control rooms where human operators are responsible for interpreting, assessing, and responding to different system’s states and failures (e.g., simultaneously monitoring refueling at one plant while keeping an eye on another plant’s normal operating state). Furthermore, the operational, safety, and performance requirements for MMR can seriously change current staffing models and roles, the mode in which information is displayed, procedures and training to support and guide operators, and risk analysis. For these reasons, addressing human factors concerns in MMR are essential in reducing plant risk.

  18. Human factors engineering report for the cold vacuum drying facility

    SciTech Connect (OSTI)

    IMKER, F.W.

    1999-06-30T23:59:59.000Z

    The purpose of this report is to present the results and findings of the final Human Factors Engineering (HFE) technical analysis and evaluation of the Cold Vacuum Drying Facility (CVDF). Ergonomics issues are also addressed in this report, as appropriate. This report follows up and completes the preliminary work accomplished and reported by the Preliminary HFE Analysis report (SNF-2825, Spent Nuclear Fuel Project Cold Vacuum Drying Facility Human Factors Engineering Analysis: Results and Findings). This analysis avoids redundancy of effort except for ensuring that previously recommended HFE design changes have not affected other parts of the system. Changes in one part of the system may affect other parts of the system where those changes were not applied. The final HFE analysis and evaluation of the CVDF human-machine interactions (HMI) was expanded to include: the physical work environment, human-computer interface (HCI) including workstation and software, operator tasks, tools, maintainability, communications, staffing, training, and the overall ability of humans to accomplish their responsibilities, as appropriate. Key focal areas for this report are the process bay operations, process water conditioning (PWC) skid, tank room, and Central Control Room operations. These key areas contain the system safety-class components and are the foundation for the human factors design basis of the CVDF.

  19. Strange vector form factors from parity-violating electron scattering

    SciTech Connect (OSTI)

    Kent Paschke, Anthony Thomas, Robert Michaels, David Armstrong

    2011-06-01T23:59:59.000Z

    The simplest models might describe the nucleon as 3 light quarks, but this description would be incomplete without inclusion of the sea of glue and qbar q pairs which binds it. Early indications of a particularly large contribution from strange quarks in this sea to the spin and mass of the nucleon motivated an experimental program examining the role of these strange quarks in the nucleon vector form factors. The strangeness form factors can be extracted from the well-studied electromagnetic structure of the nucleon using parity-violation in electron-nuclear scattering to isolate the effect of the weak interaction. With high luminosity and polarization, and a very stable beam due to its superconducting RF cavities, CEBAF at Jefferson Lab is a precision instrument uniquely well suited to the challenge of measurements of the small parity-violating asymmetries. The techniques and results of the two major Jefferson Lab experimental efforts in parity-violation studies, HAPPEX and G0, as well as efforts to describe the strange form factors in QCD, will be reviewed.

  20. Influences on Mercury Bioaccumulation Factors for the Savannah River

    SciTech Connect (OSTI)

    Paller, M.H.

    2003-05-06T23:59:59.000Z

    Mercury TMDLs (Total Maximum Daily Loads) are a regulatory instrument designed to reduce the amount of mercury entering a water body and ultimately to control the bioaccumulation of mercury in fish. TMDLs are based on a BAF (bioaccumulation factor), which is the ratio of methyl mercury in fish to dissolved methyl mercury in water. Analysis of fish tissue and aqueous methyl mercury samples collected at a number of locations and over several seasons in a 118 km reach of the Savannah River demonstrated that species specific BAFs varied by factors of three to eight. Factors contributing to BAF variability were location, habitat and season related differences in fish muscle tissue mercury levels and seasonal differences in dissolved methyl mercury levels. Overall (all locations, habitats, and seasons) average BAFs were 3.7 x 106 for largemouth bass, 1.4 x 106 for sunfishes, and 2.5 x 106 for white catfish. Inaccurate and imprecise BAFs can result in unnecessary economic impact or insufficient protection of human health. Determination of representative and precise BAFs for mercury in fish from large rivers necessitates collecting large and approximately equal numbers of fish and aqueous methyl mercury samples over a seasonal cycle from the entire area and all habitats to be represented by the TMDL.

  1. The Exposure Rate Conversion Factor for Nuclear Fallout

    SciTech Connect (OSTI)

    Spriggs, G D

    2009-02-11T23:59:59.000Z

    Nuclear fallout is comprised of approximately 2000 radionuclides. About 1000 of these radionuclides are either primary fission products or activated fission products that are created during the burn process. The exposure rate one meter above the surface produced by this complex mixture of radionuclides varies rapidly with time since many of the radionuclides are short-lived and decay numerous times before reaching a stable isotope. As a result, the mixture of radionuclides changes rapidly with time. Using a new code developed at the Lawrence Livermore National Laboratory, the mixture of radionuclides at any given point in time can be calculated. The code also calculates the exposure rate conversion factor (ECF) for all 3864 individual isotopes contained in its database based on the total gamma energy released per decay. Based on the combination of isotope mixture and individual ECFs, the time-dependent variation of the composite exposure rate conversion factor for nuclear fallout can be easily calculated. As example of this new capability, a simple test case corresponding to a 10 kt, uranium-plutonium fuel has been calculated. The results for the time-dependent, composite ECF for this test case are shown in Figure 1. For comparison, we also calculated the composite exposure rate conversion factor using the conversion factors found in Federal Guidance Report No.12 (FGR-12) published by ORNL, which contains the conversion factors for approximately 1000 isotopes. As can be noted from Figure 1, the two functions agree reasonably well at times greater than about 30 minutes. However, they do not agree at early times since FGR-12 does not include all of the short-lived isotopes that are produced in nuclear fallout. It should also be noted that the composite ECF at one hour is 19.7 R/hr per Ci/m{sup 2}. This corresponds to 3148 R/hr per 1 kt per square mile, which agrees reasonably well with the value of 3000 R/hr per 1 kt per square mile as quoted by Glasstone. We have also tabulated the top 50 contributors to the exposure rate at various points in time following a detonation. These major contributors are given in Table 1.

  2. A test of resuspension factor models against Chernobyl data

    SciTech Connect (OSTI)

    Garger, E.K. [Ukrainian Academy of Agricultural Sciences, Kiev (Ukraine). Inst. of Radioecology; Anspaugh, L.R.; Shinn, J.H. [Lawrence Livermore National Lab., CA (United States); Hoffman, F.O. [Senes Oak Ridge, Inc., TN (United States)

    1995-04-01T23:59:59.000Z

    After the accident at Unit 4 of the Chernobyl nuclear power plant (NPP), stationary air samplers were operated at Chernobyl and Baryshevka, cities which are 16 km and 150 km, respectively, from the NPP. Other air samplers were operated simultaneously, but intermittently, at locations within the 30 km zone at distances of 4-25 km from the NPP. These data were used to check the validity of time dependent models of the resuspension factor K (m{sup -1}). Seven different models were examined, three of which are discussed in the paper. Data from the stationary air samplers were averaged over one day or one month; dam from the intermittent air samplers were averaged over three days in 1986 and over four hours in 1991. The concentrations of eight radionuclides were measured at ten points during the same time period (14-17 September 1986). The calculated resuspension factors range from 6 x 10{sup -9} m{sup -1} to 3 x 10{sup -6} m{sup -1}. Data for the spatial means of K are given for certain time periods in 1986 and 1991; also presented are the calculated values according to the models. The experimental data and the calculated values differ by up to more than one order of magnitude. Also analysed was the temporal change in experimental values of K and these values were compared with model predictions. The annual means of the resuspension factor as determined experimentally and as calculated with the models are presented. The model derived from empirical data measured in Neuherberg after the Chernobyl accident agrees best with the data. The Garland model systematically gives results lower than the experimental values, and the calculated values of K from the Linsley model are consistently conservative. Also considered were the uncertainty of K due to fluctuations in air concentrations and possible biological effects of episodic exposures.

  3. Factors affecting expanded electricity trade in North America

    SciTech Connect (OSTI)

    Hill, L.J.

    1994-01-01T23:59:59.000Z

    The authors explore factors that affect electricity trade between enterprises in the US and Canada and the US and Mexico. They look to those underlying policy and institutional factors that affect the relative costs of producing electricity in the three countries. In particular, they consider six factors that appear to have a significant impact on electricity trade in North America: differences in the types of economic regulation of power leading to differences in cost recovery for wholesale and retail power and wheeling charges; changing regulatory attitudes, placing more emphasis on demand-side management and environmental concerns; differences in energy and economic policies; differences in national and subnational environmental policies; changing organization of electric power industries which may foster uncertainty, change historical relationships, and provide other potentially important sources of power for distribution utilities; and differences in the ability of enterprises to gain access to electric power markets because of restrictions placed on transmission access. In Section 2, the authors discuss the regulation of electricity trade in North America and provide an overview of the recent trading experience for electricity between Canada and the US and between Mexico and the US, including the volume of that trade over the past decade and existing transmission capacity between regions of the three countries. In Section 3, they look at the benefits that accrue to trading counties and what those benefits are likely to be for the three countries. The discussion in Section 4 centers on the relevant provisions of the Canada Free Trade Agreement and the proposed North American Free Trade Agreement. In Section 5, they set the stage for the discussion of policy and institutional differences presented in Section 6 by outlining differences in the organization of the electric power sectors of Canada, the US, and Mexico. The study is synthesized in Section 7.

  4. Factorization at the LHC: From PDFs to Initial State Jets

    E-Print Network [OSTI]

    Iain W. Stewart; Frank J. Tackmann; Wouter J. Waalewijn

    2010-05-26T23:59:59.000Z

    We study proton-(anti)proton collisions at the LHC or Tevatron in the presence of experimental restrictions on the hadronic final state and for generic parton momentum fractions. At the scale Q of the hard interaction, factorization does not yield standard parton distribution functions (PDFs) for the initial state. The measurement restricting the hadronic final state introduces a new scale \\mu_B Xl+l- where X is restricted to have no central jets. We comment on the extension to cases where the hadronic final state contains a certain number of isolated central jets.

  5. Nucleon electromagnetic form factors from twisted mass lattice QCD

    E-Print Network [OSTI]

    Abdou Abdel-Rehim; Constantia Alexandrou; Martha Constantinou; Kyriakos Hadjiyiannakou; Karl Jansen; Giannis Koutsou

    2015-01-07T23:59:59.000Z

    Results on the electromagnetic form factors of the nucleon using twisted mass fermion configurations are presented. These include a gauge field ensemble simulated with two degenerate light quarks yielding a pion mass of around 130 MeV, as well as two ensembles that include strange and charm quarks in the sea yielding pion masses of 210 MeV and 373 MeV. Details of the methods used and systematic errors are discussed, such as noise reduction techniques and the effect of excited states contamination.

  6. Nucleon electromagnetic form factors from twisted mass lattice QCD

    E-Print Network [OSTI]

    Abdel-Rehim, Abdou; Constantinou, Martha; Hadjiyiannakou, Kyriakos; Jansen, Karl; Koutsou, Giannis

    2015-01-01T23:59:59.000Z

    Results on the electromagnetic form factors of the nucleon using twisted mass fermion configurations are presented. These include a gauge field ensemble simulated with two degenerate light quarks yielding a pion mass of around 130 MeV, as well as two ensembles that include strange and charm quarks in the sea yielding pion masses of 210 MeV and 373 MeV. Details of the methods used and systematic errors are discussed, such as noise reduction techniques and the effect of excited states contamination.

  7. Iron acquisition and utilization by Rhodococcus equi: potential virulence factors

    E-Print Network [OSTI]

    Carnes, Misty Lee

    2002-01-01T23:59:59.000Z

    . . . . . . . . . . . . . . . . Growth of R. equi in minimal media (MM) and MM without iron 66 (MM-Fe) . . 67 12 13 Growth of R. equi in 100 ItM DIP + varying iron concentrations. . . . . . . . . 68 Effects of iron source (FeSO& or FeCls) onin vitro growth of R. equi. . . 69.... , virulence factors) against oxidative stress Three types of bacterial SODs have been described: those that contain either iron (Fe SOD), manganese (MnSOD), or copper-zinc (Cu-ZnSOD)(85). If the appropriate minerals are not available for production of SODs...

  8. Measurement of the Proton's Neutral Weak Magnetic Form Factor

    E-Print Network [OSTI]

    B. Mueller; D. H. Beck; E. J. Beise; E. Candell; L. Cardman; R. Carr; R. C. DiBari; G. Dodson; K. Dow; F. Duncan; M. Farkhondeh; B. W. Filippone; T. Forest; H. Gao; W. Korsch; S. Kowalski; A. Lung; R. D. McKeown; R. Mohring; J. Napolitano; D. Nilsson; M. Pitt; N. Simicevic; B. Terburg; S. P. Wells

    1997-02-26T23:59:59.000Z

    We report the first measurement of the parity-violating asymmetry in elastic electron scattering from the proton. The asymmetry depends on the neutral weak magnetic form factor of the proton which contains new information on the contribution of strange quark-antiquark pairs to the magnetic moment of the proton. We obtain the value $G_M^Z= 0.34 \\pm 0.09 \\pm 0.04 \\pm 0.05$ n.m. at $Q^2=0.1$ (GeV/c)${}^2$.

  9. Crystal Structure of the Pseudomonas aeruginosa Virulence Factor Regulator

    SciTech Connect (OSTI)

    Cordes, Timothy J.; Worzalla, Gregory A.; Ginster, Aaron M.; Forest, Katrina T. (UW)

    2012-09-07T23:59:59.000Z

    Virulence factor regulator (Vfr) enhances Pseudomonas aeruginosa pathogenicity through its role as a global transcriptional regulator. The crystal structure of Vfr shows that it is a winged-helix DNA-binding protein like its homologue cyclic AMP receptor protein (CRP). In addition to an expected primary cyclic AMP-binding site, a second ligand-binding site is nestled between the N-terminal domain and the C-terminal helix-turn-helix domain. Unlike CRP, Vfr is a symmetric dimer in the absence of DNA. Removal of seven disordered N-terminal residues of Vfr prvents the growth of P. aeruginosa.

  10. The proton gyromagnetic g-factor: an electromagnetic model

    E-Print Network [OSTI]

    G. Sardin

    2009-12-25T23:59:59.000Z

    So far, the Standard Model of Elementary Particles has not succeeded getting a trustworthy account of the proton spin, which remains an enigma. This hindrance is known as the proton spin crisis, owing to the experimental evidence already from 1988 suggesting that little or none of the proton spin would come from the spin of the quarks. This prompted theorists to a flood of guessworks about the proton spin. Since it remains unsolved, in the framework of new physics an exploratory approach based on a novel paradigm is proposed, which brings a renewed access to this challenge, through its reciprocal relationship with the g-factor.

  11. Large Panels with Common Factors and Spatial Correlations

    E-Print Network [OSTI]

    Hashem, Pesaran

    ;1 (#6;t) is bounded for all N , then under the granularity conditions (13)-(14) we have lim N!1 V ar(w0t#0;1zt jIt#0;1 ) = 0: A particular form of a CWD process arises when pairwise correlations take non-zero values only across ?nite subsets of units... sectional samples with strong co-movements. Panels with common factors have been applied to characterize the dynamic of stock and bond returns (Chamberlain and Rothschild 1983; Connor and Korajczyk, 1993; Kapetanios and Pesaran, 2007), and in macroeconomics...

  12. The A&A Experience With Impact Factors

    E-Print Network [OSTI]

    Aa. Sandqvist

    2004-03-08T23:59:59.000Z

    There is a widespread impression that the scientific journal "Astronomy & Astrophysics" (A&A) has a smaller impact, as measured by citations to articles, than some of the other major astronomy journals. This impression was apparently supported - and probably created - by the Journal Citation Report (JCR), which is prepared annually by the Institute of Scientific Information (ISI) Web of Knowledge. The published poor impact factor of A&A was in fact wrong and was due to a serious flaw in the method used by ISI Web of Knowledge to determine it. The resulting damage inflicted upon A&A by the JCR is incalculable.

  13. Harmonic mean, the Gamma factor and Speed of Light

    E-Print Network [OSTI]

    Chandru Iyer

    2008-11-17T23:59:59.000Z

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

  14. Factors Affecting PMU Installation Costs (October 2014) | Department of

    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 in RepresentativeDepartmentEnergy Factors Affecting PMU Installation Costs

  15. First Climate formerly Factor Consulting | 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 are8COaBulkTransmissionSitingProcess.pdf Jump to:ar-80m.pdfFillmore County, Minnesota:Island,Factor Consulting Jump to:

  16. 11_1_foster.ai

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

    In just the past 10 years, we have seen the emergence of petas- cale supercomputing, cloud computing that provides on-demand computing and storage with considerable econo-...

  17. Nucleon form factors and final state radiative corrections to $e^+e^-\\to \\bar p p ?$

    E-Print Network [OSTI]

    Henryk Czyz; Johann H. Kuhn; Szymon Tracz

    2014-11-19T23:59:59.000Z

    New parametrisation for the electric and the magnetic form factors of proton and neutron are presented. The proton form factors describe well the recent measurements by BaBar collaboration and earlier ones of the ratio of the form factors in space-like region. The neutron form factors are consistent with earlier measurements of neutron pair production and ratio of the form factors in the space-like region. These form factors are implemented into the generator PHOKHARA, which simulates the reactions $e^+e^-\\to \\bar p p \\gamma$ and $e^+e^-\\to \\bar n n\\gamma$. The influence of final state radiation is investigated.

  18. Construction of Quantum Field Theories with Factorizing S-Matrices

    E-Print Network [OSTI]

    Gandalf Lechner

    2007-02-12T23:59:59.000Z

    A new approach to the construction of interacting quantum field theories on two-dimensional Minkowski space is discussed. In this program, models are obtained from a prescribed factorizing S-matrix in two steps. At first, quantum fields which are localized in infinitely extended, wedge-shaped regions of Minkowski space are constructed explicitly. In the second step, local observables are analyzed with operator-algebraic techniques, in particular by using the modular nuclearity condition of Buchholz, d'Antoni and Longo. Besides a model-independent result regarding the Reeh-Schlieder property of the vacuum in this framework, an infinite class of quantum field theoretic models with non-trivial interaction is constructed. This construction completes a program initiated by Schroer in a large family of theories, a particular example being the Sinh-Gordon model. The crucial problem of establishing the existence of local observables in these models is solved by verifying the modular nuclearity condition, which here amounts to a condition on analytic properties of form factors of observables localized in wedge regions. It is shown that the constructed models solve the inverse scattering problem for the considered class of S-matrices. Moreover, a proof of asymptotic completeness is obtained by explicitly computing total sets of scattering states. The structure of these collision states is found to be in agreement with the heuristic formulae underlying the Zamolodchikov-Faddeev algebra.

  19. Light Meson Form Factors at near Physical Masses

    E-Print Network [OSTI]

    Benjamin Owen; Waseem Kamleh; Derek Leinweber; Benjamin Menadue; Selim Mahbub

    2015-01-12T23:59:59.000Z

    The ability for most hadrons to decay via strong interactions prevents the direct measurement of their electromagnetic properties. However, a detailed understanding of how these resonant states feature in scattering processes can allow one to disentangle such information from photo production processes. In particular, there has been increasing interest in the determination of magnetic dipole moments using such methods. In a recent study, Gudino et al. provide the first experimental determination of the magnetic dipole moment of the rho meson. To facilitate a comparison with this experimental determination, we present a calculation of the rho meson and pion electromagnetic form factors calculated in the framework of Lattice QCD. Using the PACS-CS 2+1 flavour full QCD gauge field configurations, we are able to access low $Q^2$ values at near-physical quark masses. Through the use of variational techniques, we control excited state systematics in the matrix elements of the lowest-lying states and gain access to the matrix elements of the first excited state. Our determination of the rho meson $g$-factor $g_{\\rho} = 2.21(8)$ is in excellent agreement with this experimental determination, but with a significantly smaller uncertainty.

  20. The Solar Wind Charge-Exchange Production Factor for Hydrogen

    E-Print Network [OSTI]

    Kuntz, K D; Collier, M R; Connor, H K; Cravens, T E; Koutroumpa, D; Porter, F S; Robertson, I P; Sibeck, D G; Snowden, S L; Thomas, N E; Wash, B M

    2015-01-01T23:59:59.000Z

    The production factor, or broad band averaged cross-section, for solar wind charge-exchange with hydrogen producing emission in the ROSAT 1/4 keV (R12) band is $3.8\\pm0.2\\times10^{-20}$ count degree$^{-2}$ cm$^4$. This value is derived from a comparison of the Long-Term (background) Enhancements in the ROSAT All-Sky Survey with magnetohysdrodynamic simulations of the magnetosheath. This value is 1.8 to 4.5 times higher than values derived from limited atomic data, suggesting that those values may be missing a large number of faint lines. This production factor is important for deriving the exact amount of 1/4 keV band flux that is due to the Local Hot Bubble, for planning future observations in the 1/4 keV band, and for evaluating proposals for remote sensing of the magnetosheath. The same method cannot be applied to the 3/4 keV band as that band, being composed primarily of the oxygen lines, is far more sensitive to the detailed abundances and ionization balance in the solar wind. We also show, incidentally,...

  1. Beyond the Fundamentals of Special Relativity: Full Lorentz gamma factor

    E-Print Network [OSTI]

    G. Sardin

    2010-01-18T23:59:59.000Z

    Special relativity calculates, by means of the Lorentz gamma factor, the proper time of all inertial systems from the observer proper time, which is taken as a time standard. So, any temporal inference relies in first instance on the observer own time. The question is thus: what fixes the observer proper time? This will be the crucial point debated here. This implies analyzing at the very first why the observer can be taken as a motionless reference in spite of being himself inertial. Is this just an approximation, and if so, up to what extent can it be applied? The framework of special relativity is compared to an amended form in which the fact of taking himself as a reference does not allow the observer to overlook its own kinetics. So, the issue stands on which of two formulations of the Lorentz gamma factor is the most accurate one: its standard expression or an amended one which takes into account the fact that the observer is himself inertial, while the former disregards it. When the observer speed is ignored, the two formulations become identical. Hence, the standard relativistic expression of gamma can be seen as an approximation applicable when the observer motion is null or low, such as it is the instance on Earth.

  2. Architecture of a Quantum Multicomputer Optimized for Shor's Factoring Algorithm

    E-Print Network [OSTI]

    Rodney Doyle Van Meter III

    2006-07-11T23:59:59.000Z

    The quantum multicomputer consists of a large number of small nodes and a qubus interconnect for creating entangled state between the nodes. The primary metric chosen is the performance of such a system on Shor's algorithm for factoring large numbers: specifically, the quantum modular exponentiation step that is the computational bottleneck. This dissertation introduces a number of optimizations for the modular exponentiation. My algorithms reduce the latency, or circuit depth, to complete the modular exponentiation of an n-bit number from O(n^3) to O(n log^2 n) or O(n^2 log n), depending on architecture. Calculations show that these algorithms are one million times and thirteen thousand times faster, when factoring a 6,000-bit number, depending on architecture. Extending to the quantum multicomputer, five different qubus interconnect topologies are considered, and two forms of carry-ripple adder are found to be the fastest for a wide range of performance parameters. The links in the quantum multicomputer are serial; parallel links would provide only very modest improvements in system reliability and performance. Two levels of the Steane [[23,1,7

  3. ML BLIND CHANNEL ESTIMATION IN OFDM USING CYCLOSTATIONARITY AND SPECTRAL FACTORIZATION

    E-Print Network [OSTI]

    Quadeer, Ahmed Abdul

    ML BLIND CHANNEL ESTIMATION IN OFDM USING CYCLOSTATIONARITY AND SPECTRAL FACTORIZATION A. A is vital in OFDM systems for efficient data recovery. In this paper, we propose a blind algorithm. Index Terms-- Blind channel estimation, Maximum likelihood estimation, Spectral factorization

  4. An evaluation of gender-based weighting factors for internal dosimetry 

    E-Print Network [OSTI]

    Spiars, Joanna Hamilton

    1994-01-01T23:59:59.000Z

    This study assesses gender effects on radiation dose weighting factors used in internal dosimetry. A weighting factor represents the relative contribution of a particular organ or tissue to the total detriment due to the effects from uniform whole...

  5. The neutron electric form factor to Q² = 1.45 (GeV/c)²

    E-Print Network [OSTI]

    Plaster, Bradley R. (Bradley Robert), 1976-

    2004-01-01T23:59:59.000Z

    The nucleon elastic electromagnetic form factors are fundamental quantities needed for an understanding of nucleon and nuclear electromagnetic structure. The evolution of the Sachs electric and magnetic form factors with ...

  6. Guidance for Incorporating Organizational Factors Into Nuclear Power Plant Risk Assessments - Phase 1 Workshop

    SciTech Connect (OSTI)

    J. Julius; A. Mosleh; M. Golay; V. Guthrie; J. Wreathall; A. Spurgin; B. Hannaman; D. Ziebell

    2002-12-31T23:59:59.000Z

    EPRI sponsored this study in order to help determine the influence of organizational factors on plant safety, risk, and economics. PRA tools provide excellent models for answering the question, ''How does change in an organizational factor impact the risk value?''

  7. Nuclear physics in soft-wall AdS/QCD: deuteron electromagnetic form factors

    E-Print Network [OSTI]

    Gutsche, Thomas; Schmidt, Ivan; Vega, Alfredo

    2015-01-01T23:59:59.000Z

    We present a calculation of the deuteron electromagnetic form factors in a soft-wall AdS/QCD approach. The power scaling of the deuteron form factors is consistent with quark counting rules.

  8. Prevalences of diabetes and cardiovascular disease risk factors in Hindu Indian subcommunities in Tanzania 

    E-Print Network [OSTI]

    Ramaiya, K L; Swai, A B; McLarty, D G; Bhopal, Raj; Alberti, K G

    1991-01-01T23:59:59.000Z

    OBJECTIVES--To seek differences in the prevalence of diabetes mellitus and other coronary heart disease risk factors, and to identify factors associated with these differences within a Hindu Indian community. DESIGN--Population ...

  9. Functional genomics analysis of the arabidopsis ABI5 bZIP transcription factor

    E-Print Network [OSTI]

    Hur, Jung-Im

    2009-05-15T23:59:59.000Z

    zipper (bZIP) transcription factors are identified by interaction with ABA responsive cis-regulatory elements. The transcription factor ABI5 is one of these. It regulates gene expression during embryogenesis and in response to ABA. An ABA...

  10. Recoil polarization measurements of the proton electromagnetic form factor ratio to high momentum transfer

    E-Print Network [OSTI]

    Puckett, Andrew James Ruehe

    2010-01-01T23:59:59.000Z

    The electromagnetic form factors of the nucleon characterize the effect of its internal structure on its response to an electromagnetic probe as studied in elastic electronnucleon scattering. These form factors are functions ...

  11. Energy Price Indices and Discount Factors for Life-Cycle Cost...

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

    2 Energy Price Indices and Discount Factors for Life-Cycle Cost Analysis - 2012 Report provides tables of present-value factors for use in the life-cycle cost analysis of capital...

  12. Energy Price Indices and Discount Factors for Life-Cycle Cost...

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

    Energy Price Indices and Discount Factors for Life-Cycle Cost Analysis-2014 Energy Price Indices and Discount Factors for Life-Cycle Cost Analysis-2014 Handbook describes the...

  13. Calculation of extremity neutron fluence-to-dose equivalent conversion factors

    E-Print Network [OSTI]

    Wood-Zika, Annmarie Ruth

    1997-01-01T23:59:59.000Z

    surface fluence spectra 45 LIST OF TABLES TABLE Page Properties of commercially available TLDs . . PNNL dose equivalent averaged quality factors . 16 3 MCNP input deck geometries Phantoms modeled in MCNP input decks . . Comparison of calculated..., PNNL and DOELAP fluence-to-dose equivalent conversion factors for bare '"Cf . . . . 37 Comparison of calculated, PNNL and DOELAP fluence-to-dose equivalent conversion factors for D, O moderated '"Cf. 37 Fluence-to-dose equivalent conversion factors...

  14. Phosphorylation of the Parsley bZIP Transcription Factor CPRF2 Is Regulated by Light*

    E-Print Network [OSTI]

    Schäfer, Eberhard

    in response to light, we analyzed the common plant regulatory factor 2 (CPRF2) from parsley (Petroselinum

  15. Bacterivory in the common foraminifer Ammonia tepida:1 isotope tracer experiment and the controlling factors2

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    factor, mudflat, prey23 abundance24 25 * Manuscript hal-00293541,version1-4Jul2008 Author manuscript

  16. The electric and magnetic form factors of the proton

    E-Print Network [OSTI]

    A1 Collaboration; J. C. Bernauer; M. O. Distler; J. Friedrich; Th. Walcher; P. Achenbach C. Ayerbe Gayoso; R. Böhm; L. Debenjak; L. Doria; A. Esser; H. Fonvieille; M. Gómez Rodrígues de la Paz; J. M. Friedrich; M. Makek; H. Merkel; D. G. Middleton; U. Müller; L. Nungesser; J. Pochodzalla; M. Potokar; S. Sánchez Majos; B. S. Schlimme; S. Širca; M. Weinriefer

    2014-07-29T23:59:59.000Z

    The paper describes a precise measurement of electron scattering off the proton at momentum transfers of $0.003 \\lesssim Q^2 \\lesssim 1$\\ GeV$^2$. The average point-to-point error of the cross sections in this experiment is $\\sim$ 0.37%. These data are used for a coherent new analysis together with all world data of unpolarized and polarized electron scattering from the very smallest to the highest momentum transfers so far measured. The extracted electric and magnetic form factors provide new insight into their exact shape, deviating from the classical dipole form, and of structure on top of this gross shape. The data reaching very low $Q^2$ values are used for a new determination of the electric and magnetic radii. An empirical determination of the Two-Photon-Exchange (TPE) correction is presented. The implications of this correction on the radii and the question of a directly visible signal of the pion cloud are addressed.

  17. Infrared Safety in Factorized Hard Scattering Cross-Sections

    E-Print Network [OSTI]

    Andrew Hornig; Christopher Lee; Grigory Ovanesyan

    2009-05-13T23:59:59.000Z

    The rules of soft-collinear effective theory can be used naively to write hard scattering cross-sections as convolutions of separate hard, jet, and soft functions. One condition required to guarantee the validity of such a factorization is the infrared safety of these functions in perturbation theory. Using e+e- angularity distributions as an example, we propose and illustrate an intuitive method to test this infrared safety at one loop. We look for regions of integration in the sum of Feynman diagrams contributing to the jet and soft functions where the integrals become infrared divergent. Our analysis is independent of an explicit infrared regulator, clarifies how to distinguish infrared and ultraviolet singularities in pure dimensional regularization, and demonstrates the necessity of taking zero-bins into account to obtain infrared-safe jet functions.

  18. Light Meson Form Factors at near Physical Masses

    E-Print Network [OSTI]

    Owen, Benjamin; Leinweber, Derek; Menadue, Benjamin; Mahbub, Selim

    2015-01-01T23:59:59.000Z

    The ability for most hadrons to decay via strong interactions prevents the direct measurement of their electromagnetic properties. However, a detailed understanding of how these resonant states feature in scattering processes can allow one to disentangle such information from photo production processes. In particular, there has been increasing interest in the determination of magnetic dipole moments using such methods. In a recent study, Gudino et al. provide the first experimental determination of the magnetic dipole moment of the rho meson. To facilitate a comparison with this experimental determination, we present a calculation of the rho meson and pion electromagnetic form factors calculated in the framework of Lattice QCD. Using the PACS-CS 2+1 flavour full QCD gauge field configurations, we are able to access low $Q^2$ values at near-physical quark masses. Through the use of variational techniques, we control excited state systematics in the matrix elements of the lowest-lying states and gain access to ...

  19. Dressed Quark Mass Dependence of Pion and Kaon Form Factors

    E-Print Network [OSTI]

    Y. Ninomiya; W. Bentz; I. C. Cloët

    2015-01-27T23:59:59.000Z

    The structure of hadrons is described well by the Nambu--Jona-Lasinio (NJL) model, which is a chiral effective quark theory of QCD. In this work we explore the electromagnetic structure of the pion and kaon using the three-flavor NJL model, including effects of confinement and a pion cloud at the quark level. In the calculation there is only one free parameter, which we take as the dressed light quark ($u$ and $d$) mass. In the regime where the dressed light quark mass is approximately $0.25\\,$GeV, we find that the calculated values of the kaon decay constant, current quark masses, and quark condensates are consistent with experiment and QCD based analyses. We also investigate the dressed light quark mass dependence of the pion and kaon electromagnetic form factors, where comparison with empirical data and QCD predictions also favors a dressed light quark mass near $0.25\\,$GeV.

  20. Making tensor factorizations robust to non-gaussian noise.

    SciTech Connect (OSTI)

    Chi, Eric C. (Rice University, Houston, TX); Kolda, Tamara Gibson

    2011-03-01T23:59:59.000Z

    Tensors are multi-way arrays, and the CANDECOMP/PARAFAC (CP) tensor factorization has found application in many different domains. The CP model is typically fit using a least squares objective function, which is a maximum likelihood estimate under the assumption of independent and identically distributed (i.i.d.) Gaussian noise. We demonstrate that this loss function can be highly sensitive to non-Gaussian noise. Therefore, we propose a loss function based on the 1-norm because it can accommodate both Gaussian and grossly non-Gaussian perturbations. We also present an alternating majorization-minimization (MM) algorithm for fitting a CP model using our proposed loss function (CPAL1) and compare its performance to the workhorse algorithm for fitting CP models, CP alternating least squares (CPALS).

  1. Factors relevant to utility integration of intermittent renewable technologies

    SciTech Connect (OSTI)

    Wan, Yih-huei; Parsons, B.K.

    1993-08-01T23:59:59.000Z

    This study assesses factors that utilities must address when they integrate intermittent renewable technologies into their power-supply systems; it also reviews the literature in this area and has a bibliography containing more than 350 listings. Three topics are covered: (1) interface (hardware and design-related interconnection), (2) operability/stability, and (3) planning. This study finds that several commonly held perceptions regarding integration of intermittent renewable energy technologies are not valid. Among findings of the study are the following: (1) hardware and system design advances have eliminated most concerns about interface; (2) cost penalties have not occurred at low to moderate penetration levels (and high levels are feasible); and (3) intermittent renewable energy technologies can have capacity values. Obstacles still interfering with intermittent renewable technologies are also identified.

  2. Off-shell helicity amplitudes in high-energy factorization

    E-Print Network [OSTI]

    Piotr Kotko

    2013-09-20T23:59:59.000Z

    In the Catani-Ciafaloni-Hautmann high-energy factorization approach a cross section is expressed as a convolution of unintegrated gluon densities and a gauge-invariant hard process, in which two incoming gluons are off-shell with momenta satisfying certain high-energy kinematics. We present two methods of evaluating the tree-level hard process with multiple final states. The first one assumes that only one of the gluons is off-shell and relies on the Slavnov-Taylor identities. Such asymmetric configuration of incoming gluons is phenomenologically important in small x probing by forward processes. The second method deals also with two off-shell gluons and is based on the analytic continuation of the off-shell gluons momenta to the complex space. The methods were implemented into Monte Carlo computer programs and used in phenomenological applications. The results of both methods are straightforwardly related to Lipatov's effective vertices in quasi-multi-regge kinematics.

  3. Accelerated Gibbs Sampling for Infinite Sparse Factor Analysis

    SciTech Connect (OSTI)

    Andrzejewski, D M

    2011-09-12T23:59:59.000Z

    The Indian Buffet Process (IBP) gives a probabilistic model of sparse binary matrices with an unbounded number of columns. This construct can be used, for example, to model a fixed numer of observed data points (rows) associated with an unknown number of latent features (columns). Markov Chain Monte Carlo (MCMC) methods are often used for IBP inference, and in this technical note, we provide a detailed review of the derivations of collapsed and accelerated Gibbs samplers for the linear-Gaussian infinite latent feature model. We also discuss and explain update equations for hyperparameter resampling in a 'full Bayesian' treatment and present a novel slice sampler capable of extending the accelerated Gibbs sampler to the case of infinite sparse factor analysis by allowing the use of real-valued latent features.

  4. Factors affecting hydrolysis of condensed phosphates in soils

    E-Print Network [OSTI]

    Stewart, William M.

    1983-01-01T23:59:59.000Z

    PP was added to all samples, with the samples subsequently being incubated at 25C . Samples were again extracted and analyzed at 2, 6, 18, and 36 days. Phosphorous was extracted from all samples by the method of Gilliam and Sample (1968... Temperature 5 C 25 C 35 C Time 0 Days 2 Days 6 Days 18 Days 36 Days ppm 1. 8 a -1. 8 b 4. 3 a -4. 3 b 6. 8 a -2. 7 b -4. 1 b 4. 2 -2. 5 b -1. 7 b 1. 8 a -0. 8 b -1. 0 b o. o a O. 4 a O. s a -o. e a -0. 3 a t Means within a factor...

  5. Method yields safety factor for in-line inspection data

    SciTech Connect (OSTI)

    Colquhon, I.; Menendez, A. [Transportadora de Gas del Norte, Buenos Aires (Argentina); Dovico, R. [Arcan Ingeneria y Construcciones, Buenos Aires (Argentina)

    1998-09-21T23:59:59.000Z

    A method for dealing with uncertainties in in-line inspection (ILI) information has been applied to a segment of corroded line in the gas-transmission system of Transportadora de Gas del Norte (TGN) in Argentina. Results of applying the method indicate that the safety factor for ILI data is equivalent to that provided by a hydrostatic test. The methods consist of combining the mean and dispersion of corrosion-defect depth (d) and length (L) data and simulating the effect of these variations on calculations for failure pressure (PF), using Monte Carlo propagation. A maintenance philosophy is discussed from the perspective of likelihood of failures and of information available to support maintenance decisions.

  6. On spectroscopic factors of magic and semimagic nuclei

    SciTech Connect (OSTI)

    Saperstein, E. E. [Kurchatov Institute, 123182 Moscow (Russian Federation); Gnezdilov, N. V. [Kurchatov Institute, 123182 Moscow, Russia and National Research Nuclear University MEPhI, 115409 Moscow (Russian Federation); Tolokonnikov, S. V. [Kurchatov Institute, 123182 Moscow, Russia and Moscow Institute of Physics and Technology, 141700 Dolgoprudny (Russian Federation)

    2014-10-15T23:59:59.000Z

    Single-particle spectroscopic factors (SF) of magic and semimagic nuclei are analyzed within the self-consistent theory of finite Fermi systems. The the in-volume energy dependence of the mass operator ? is taken into account in addition to the energy dependence induced by the surface-phonon coupling effects which is commonly considered. It appears due to the effect of high-lying collective and non-collective particle-hole excitations and persists in nuclear matter. The self-consistent basis of the energy density functional method by Fayans et al. is used. Both the surface and in-volume contributions to the SFs turned out to be of comparable magnitude. Results for magic {sup 208}Pb nucleus and semimagic lead isotopes are presented.

  7. Estimating Franck-Condon factors using an NMR quantum processor

    E-Print Network [OSTI]

    Sharad Joshi; Abhishek Shukla; Hemant Katiyar; Anirban Hazra; T. S. Mahesh

    2014-05-10T23:59:59.000Z

    Interaction of molecules with light may lead to electronic transitions and simultaneous vibrational excitations. Franck-Condon factors (FCFs) play an important role in quantifying the intensities of such vibronic transitions occurring during molecular photo-excitations. In this article, we describe a general method for estimating FCFs using a quantum information processor. The method involves the application of a translation operator followed by the measurement of certain projections. We also illustrate the method by experimentally estimating FCFs with the help of a three-qubit NMR quantum information processor. We describe two methods for the measurement of projections - (i) using diagonal tomography and (ii) using Moussa protocol. The experimental results agree fairly well with the theory.

  8. p27{sup Kip1} inhibits tissue factor expression

    SciTech Connect (OSTI)

    Breitenstein, Alexander, E-mail: alexander.breitenstein@usz.ch [Cardiology, University Heart Center, University Hospital Zurich (Switzerland) [Cardiology, University Heart Center, University Hospital Zurich (Switzerland); Cardiovascular Research, Physiology Institute, University of Zurich (Switzerland); Center for Integrative Human Physiology (ZHIP), University of Zurich (Switzerland); Akhmedov, Alexander; Camici, Giovanni G.; Lüscher, Thomas F.; Tanner, Felix C. [Cardiology, University Heart Center, University Hospital Zurich (Switzerland) [Cardiology, University Heart Center, University Hospital Zurich (Switzerland); Cardiovascular Research, Physiology Institute, University of Zurich (Switzerland); Center for Integrative Human Physiology (ZHIP), University of Zurich (Switzerland)

    2013-10-04T23:59:59.000Z

    Highlights: •p27{sup Kip1}regulates the expression of tissue factor at the transcriptional level. •This inhibitory effect of p27{sup Kip1} is independently of its cell regulatory action. •The current study provides new insights into a pleiotrophic function of p27{sup Kip1}. -- Abstract: Background: The cyclin-dependent kinase inhibitor (CDKI) p27{sup Kip1} regulates cell proliferation and thus inhibits atherosclerosis and vascular remodeling. Expression of tissue factor (TF), the key initator of the coagulation cascade, is associated with atherosclerosis. Yet, it has not been studied whether p27{sup Kip1} influences the expression of TF. Methods and results: p27{sup Kip1} overexpression in human aortic endothelial cells was achieved by adenoviral transfection. Cells were rendered quiescent for 24 h in 0.5% fetal-calf serum. After stimulation with TNF-? (5 ng/ml), TF protein expression and activity was significantly reduced (n = 4; P < 0.001) in cells transfected with p27{sup Kip1}. In line with this, p27{sup Kip1} overexpression reduced cytokine-induced TF mRNA expression (n = 4; P < 0.01) and TF promotor activity (n = 4; P < 0.05). In contrast, activation of the MAP kinases p38, ERK and JNK was not affected by p27{sup Kip1} overexpression. Conclusion: This in vitro study suggests that p27{sup Kip1} inhibits TF expression at the transcriptional level. These data indicate an interaction between p27{sup Kip1} and TF in important pathological alterations such as atherosclerosis and vascular remodeling.

  9. Facilitated diffusion framework for transcription factor search with conformational changes

    E-Print Network [OSTI]

    Jérôme Cartailler; Jürgen Reingruber

    2015-07-09T23:59:59.000Z

    Cellular responses often require the fast activation or repression of specific genes, which depends on Transcription Factors (TFs) that have to quickly find the promoters of these genes within a large genome. Transcription Factors (TFs) search for their DNA promoter target by alternating between bulk diffusion and sliding along the DNA, a mechanism known as facilitated diffusion. We study a facilitated diffusion framework with switching between three search modes: a bulk mode and two sliding modes triggered by conformational changes between two protein conformations. In one conformation (search mode) the TF interacts unspecifically with the DNA backbone resulting in fast sliding. In the other conformation (recognition mode) it interacts specifically and strongly with DNA base pairs leading to slow displacement. From the bulk, a TF associates with the DNA at a random position that is correlated with the previous dissociation point, which implicitly is a function of the DNA structure. The target affinity depends on the conformation. We derive exact expressions for the mean first passage time (MFPT) to bind to the promoter and the conditional probability to bind before detaching when arriving at the promoter site. We systematically explore the parameter space and compare various search scenarios. We compare our results with experimental data for the dimeric Lac repressor search in E.Coli bacteria. We find that a coiled DNA conformation is absolutely necessary for a fast MFPT. With frequent spontaneous conformational changes, a fast search time is achieved even when a TF becomes immobilized in the recognition state due to the specific bindings. We find a MFPT compatible with experimental data in presence of a specific TF-DNA interaction energy that has a Gaussian distribution with a large variance.

  10. Iso-vector form factors of the delta and nucleon in QCD sum rules

    SciTech Connect (OSTI)

    Ozpineci, A. [Physics Department, Middle East Technical University, 06800 (Turkey)

    2012-10-23T23:59:59.000Z

    Form factors are important non-perturbative properties of hadrons. They give information about the internal structure of the hadrons. In this work, iso-vector axial-vector and iso-vector tensor form factors of the nucleon and the iso-vector axial-vector {Delta}{yields}N transition form factor calculations in QCD Sum Rules are presented.

  11. GAMES AND ELEMENTARY EQUIVALENCE OF II1 FACTORS ISAAC GOLDBRING AND THOMAS SINCLAIR

    E-Print Network [OSTI]

    Goldbring, Isaac

    GAMES AND ELEMENTARY EQUIVALENCE OF II1 FACTORS ISAAC GOLDBRING AND THOMAS SINCLAIR Abstract. We use Ehrenfeucht-Fra¨iss´e games to give a local geometric crite- rion for elementary equivalence of II1 factors. We obtain as a corollary that two II1 factors are elementarily equivalent if and only

  12. Graduate Studies in Industrial and Systems Engineering Human Factors/Ergonomics

    E-Print Network [OSTI]

    1 Graduate Studies in Industrial and Systems Engineering Human Factors/Ergonomics 2013-2014 Introduction Human Factors Engineering, also known as Ergonomics, can be briefly defined as the science and skills. At OSU, Human Factors/Ergonomics (HF/E) is composed of two broad areas: Cognitive Engineering

  13. Delivering Heparin-Binding Insulin-Like Growth Factor 1 with Self-Assembling Peptide Hydrogels

    E-Print Network [OSTI]

    Miller, Rachel E.

    Heparin-binding insulin-like growth factor 1 (HB-IGF-1) is a fusion protein of IGF-1 with the HB domain of heparin-binding epidermal growth factor-like growth factor. A single dose of HB-IGF-1 has been shown to bind ...

  14. Using Factor Analysis to Generate Clusters of Agile (A Guide for Agile Process Improvement)

    E-Print Network [OSTI]

    Gravell, Andrew M.

    Using Factor Analysis to Generate Clusters of Agile Practices (A Guide for Agile Process. These factors with the associated practices can be used as a guide for agile process improvement. Correlations different agile practices. The analysis extracted 15 factors; each was associated with a list of practices

  15. EVALUATION OF THE INFLUENCE OF TACK COAT CONSTRUCTION FACTORS ON THE BOND STRENGTH BETWEEN PAVEMENT LAYERS

    E-Print Network [OSTI]

    EVALUATION OF THE INFLUENCE OF TACK COAT CONSTRUCTION FACTORS ON THE BOND STRENGTH BETWEEN PAVEMENT Evaluation of the Influence of Tack Coat Construction Factors on the Bond Strength between Pavement Layers 7 provided by the tack coat at the interface between pavement layers. These factors included the surface

  16. Thermoelectric power factor enhancement by ionized nanoparticle scattering Je-Hyeong Bahk,1,a)

    E-Print Network [OSTI]

    Thermoelectric power factor enhancement by ionized nanoparticle scattering Je-Hyeong Bahk,1,a theoretically that the thermoelectric power factor can be enhanced in degenerate semiconductors when embedded intact. We find that the thermoelectric power factor of In0.53Ga0.47As from 300 K to 800 K is enhanced

  17. Universal geometrical factor of protein conformations as a consequence of energy

    E-Print Network [OSTI]

    the EPL website to read the latest articles published in cutting-edge fields of research from acrossOFFPRINT Universal geometrical factor of protein conformations as a consequence of energy of the referees to making all final acceptance decisions Impact Factor ­ The 2010 Impact Factor is 2.753; your

  18. Human Dimensi month assis

    E-Print Network [OSTI]

    development and federal a nd, tuition w he HDNR lab are needs. Ac fellowship o tunity, contac exas A&M Un .a

  19. Symbolic Model Checking using SAT procedures instead of BDDs

    E-Print Network [OSTI]

    per la Ricerca Scientifica e Tecnolgica (IRST) via Sommarive 18, 38055 Povo (TN), Italy cimatti@irst.itc and the specification holds. For exa

  20. IMPROVING CONTROL ROOM DESIGN AND OPERATIONS BASED ON HUMAN FACTORS ANALYSES OR HOW MUCH HUMAN FACTORS UPGRADE IS ENOUGH ?

    SciTech Connect (OSTI)

    HIGGINS,J.C.; OHARA,J.M.; ALMEIDA,P.

    2002-09-19T23:59:59.000Z

    THE JOSE CABRERA NUCLEAR POWER PLANT IS A ONE LOOP WESTINGHOUSE PRESSURIZED WATER REACTOR. IN THE CONTROL ROOM, THE DISPLAYS AND CONTROLS USED BY OPERATORS FOR THE EMERGENCY OPERATING PROCEDURES ARE DISTRIBUTED ON FRONT AND BACK PANELS. THIS CONFIGURATION CONTRIBUTED TO RISK IN THE PROBABILISTIC SAFETY ASSESSMENT WHERE IMPORTANT OPERATOR ACTIONS ARE REQUIRED. THIS STUDY WAS UNDERTAKEN TO EVALUATE THE IMPACT OF THE DESIGN ON CREW PERFORMANCE AND PLANT SAFETY AND TO DEVELOP DESIGN IMPROVEMENTS.FIVE POTENTIAL EFFECTS WERE IDENTIFIED. THEN NUREG-0711 [1], PROGRAMMATIC, HUMAN FACTORS, ANALYSES WERE CONDUCTED TO SYSTEMATICALLY EVALUATE THE CR-LA YOUT TO DETERMINE IF THERE WAS EVIDENCE OF THE POTENTIAL EFFECTS. THESE ANALYSES INCLUDED OPERATING EXPERIENCE REVIEW, PSA REVIEW, TASK ANALYSES, AND WALKTHROUGH SIMULATIONS. BASED ON THE RESULTS OF THESE ANALYSES, A VARIETY OF CONTROL ROOM MODIFICATIONS WERE IDENTIFIED. FROM THE ALTERNATIVES, A SELECTION WAS MADE THAT PROVIDED A REASONABLEBALANCE BE TWEEN PERFORMANCE, RISK AND ECONOMICS, AND MODIFICATIONS WERE MADE TO THE PLANT.

  1. Spectral dependence of the linewidth enhancement factor in quantum dot lasers

    SciTech Connect (OSTI)

    Zubov, F. I., E-mail: fedyazu@mail.ru [Russian Academy of Sciences, St. Petersburg Academic University-Nanotechnology Research and Education Center (Russian Federation); Shernyakov, Yu. M.; Maximov, M. V. [Russian Academy of Sciences, Ioffe Physical-Technical Institute (Russian Federation); Zhukov, A. E. [Russian Academy of Sciences, St. Petersburg Academic University-Nanotechnology Research and Education Center (Russian Federation); Livshits, D. A. [Innolume GmbH (Germany); Payusov, A. S.; Nadtochiy, A. M. [Russian Academy of Sciences, Ioffe Physical-Technical Institute (Russian Federation); Savelyev, A. V.; Kryzhanovskaya, N. V. [Russian Academy of Sciences, St. Petersburg Academic University-Nanotechnology Research and Education Center (Russian Federation); Gordeev, N. Yu. [Russian Academy of Sciences, Ioffe Physical-Technical Institute (Russian Federation)

    2013-12-15T23:59:59.000Z

    The spectral analysis of amplified spontaneous emission is used to determine the linewidth enhancement factor (?-factor) in lasers based on InAs/InGaAs quantum dots (QDs) in a wide spectral range near the ground-state optical transition energy. The effect of the pump current and number of QDs on the spectral dependences of the ?-factor is examined. The temperature dependence of the spectra of the ?-factor is experimentally determined for the first time for lasers with InAs/InGaAs QDs. An explanation is suggested for the observed anomalous decrease in the ?-factor with increasing temperature.

  2. Bound Nucleon Form Factors, Quark-Hadron Duality, and the Nuclear EMC Effect

    SciTech Connect (OSTI)

    K. Tsushima; D.H. Lu; W. Melnitchouk; K. Saito; A.W. Thomas

    2002-09-13T23:59:59.000Z

    We discuss the electromagnetic form factors, axial form factors, and structure functions of a nucleon bound in the quark-meson coupling (QMC) model. Free space nucleon form factors are calculated using the improved cloudy bag model (ICBM). After describing finite nuclei and nuclear matter in the quark-based (EMC) model, the in-medium modification of the bound nucleon form factors is calculated in the same model. Finally, the bound nucleon structure function, F2, is extracted using the calculated in-medium electromagnetic form factors and Bloom-Gilman (quark-hadron) duality.

  3. Human Factors for Situation Assessment in Grid Operations

    SciTech Connect (OSTI)

    Guttromson, Ross T.; Schur, Anne; Greitzer, Frank L.; Paget, Mia L.

    2007-08-08T23:59:59.000Z

    Executive Summary Despite advances in technology, power system operators must assimilate overwhelming amounts of data to keep the grid operating. Analyses of recent blackouts have clearly demonstrated the need to enhance the operator’s situation awareness (SA). The long-term objective of this research is to integrate valuable technologies into the grid operator environment that support decision making under normal and abnormal operating conditions and remove non-technical barriers to enable the optimum use of these technologies by individuals working alone and as a team. More specifically, the research aims to identify methods and principles to increase SA of grid operators in the context of system conditions that are representative or common across many operating entities and develop operationally relevant experimental methods for studying technologies and operational practices which contribute to SA. With increasing complexity and interconnectivity of the grid, the scope and complexity of situation awareness have grown. New paradigms are needed to guide research and tool development aimed to enhance and improve operations. In reviewing related research, operating practices, systems, and tools, the present study established a taxonomy that provides a perspective on research and development surrounding power grid situation awareness and clarifies the field of human factors/SA for grid operations. Information sources that we used to identify critical factors underlying SA included interviews with experienced operational personnel, available historical summaries and transcripts of abnormal conditions and outages (e.g., the August 14, 2003 blackout), scientific literature, and operational policies/procedures and other documentation. Our analysis of August 2003 blackout transcripts and interviews adopted a different perspective than previous analyses of this material, and we complemented this analysis with additional interviews. Based on our analysis and a broad literature review, we advocate a new perspective on SA in terms of sensemaking, also called situated or ecological decision making, where the focus of the investigation is to understand why the decision maker(s) experienced the situation the way they did, or why what they saw made sense to them at the time. This perspective is distinct from the traditional branch of human factors research in the field which focuses more on ergonomics and the transactional relationship between the human operator and the systems. Consistent with our findings from the literature review, we recognized an over-arching need to focus SA research on issues surrounding the concept of shared knowledge; e.g., awareness of what is happening in adjacent areas as well as one’s own area of responsibility. Major findings were: a) Inadequate communication/information sharing is pervasive, b) Information is available, but not used. Many tools and mechanisms exist for operators to build awareness of the physical grid system, yet the transcripts reveal that they still need to call and exchange information with operators of neighboring areas to improve or validate their SA. The specific types of information that they request are quite predictable and, in most cases, cover information that could be available to both operators and reliability coordinators through readily available displays or other data sources, c) Shared Knowledge is Required on Operations/Actions as Well as Physical Status. In an ideal, technologically and organizationally perfect world, every control room and every reliability coordinator may have access to complete data across all regional control areas and yet, there would still be reason for the operators to call each other to gain and improve their SA of power grid operations, and d) Situation Awareness as sensemaking and shared knowledge.

  4. Characterizing the interplay betwen mulitple levels of organization within bacterial sigma factor regulatory networks

    SciTech Connect (OSTI)

    Yu, Qiu [University of California, San Diego; Nagarajan, Harish [University of California, San Diego; Embree, Mallory [University of California, San Diego; Shieu, Wendy [University of California, San Diego; Abate, Elisa [University of California, San Diego; Juarez, Katy [Universidad Nacional Autonoma de Mexico (UNAM); Cho, Byung-Kwan [University of California, San Diego; Elkins, James G [ORNL; Nevin, Kelly P. [University of Massachusetts, Amherst; Barrett, Christian [University of California, San Diego; Lovley, Derek [University of Massachusetts, Amherst; Palsson, Bernhard O. [University of California, San Diego; Zengler, Karsten [University of California, San Diego

    2013-01-01T23:59:59.000Z

    Bacteria contain multiple sigma factors, each targeting diverse, but often overlapping sets of promoters, thereby forming a complex network. The layout and deployment of such a sigma factor network directly impacts global transcriptional regulation and ultimately dictates the phenotype. Here we integrate multi-omic data sets to determine the topology, the operational, and functional states of the sigma factor network in Geobacter sulfurreducens, revealing a unique network topology of interacting sigma factors. Analysis of the operational state of the sigma factor network shows a highly modular structure with sN being the major regulator of energy metabolism. Surprisingly, the functional state of the network during the two most divergent growth conditions is nearly static, with sigma factor binding profiles almost invariant to environmental stimuli. This first comprehensive elucidation of the interplay between different levels of the sigma factor network organization is fundamental to characterize transcriptional regulatory mechanisms in bacteria.

  5. Decommissioning Cost Estimating Factors And Earned Value Integration

    SciTech Connect (OSTI)

    Sanford, P.C.; Cimmarron, E. [Englewood, CO, B. Skokan, Office of Project Management Oversight, EM-53, United States Department of Energy, Washington, DC (United States)

    2008-07-01T23:59:59.000Z

    The Rocky Flats 771 Project progressed from the planning stage of decommissioning a plutonium facility, through the strip-out of highly-contaminated equipment, removal of utilities and structural decontamination, and building demolition. Actual cost data was collected from the strip-out activities and compared to original estimates, allowing the development of cost by equipment groupings and types and over time. Separate data was developed from the project control earned value reporting and compared with the equipment data. The paper discusses the analysis to develop the detailed factors for the different equipment types, and the items that need to be considered during characterization of a similar facility when preparing an estimate. The factors are presented based on direct labor requirements by equipment type. The paper also includes actual support costs, and examples of fixed or one-time start-up costs. The integration of the estimate and the earned value system used for the 771 Project is also discussed. The paper covers the development of the earned value system as well as its application to a facility to be decommissioned and an existing work breakdown structure. Lessons learned are provided, including integration with scheduling and craft supervision, measurement approaches, and verification of scope completion. In summary: The work of decommissioning the Rocky Flats 771 Project process equipment was completed in 2003. Early in the planning process, we had difficulty in identifying credible data and implementing processes for estimating and controlling this work. As the project progressed, we were able to collect actual data on the costs of removing plutonium contaminated equipment from various areas over the life of this work and associate those costs with individual pieces of equipment. We also were able to develop and test out a system for measuring the earned value of a decommissioning project based on an evolving estimate. These were elements that would have been useful to us in our early planning process, and we would expect that they would find application elsewhere as the DOE weapons complex and some commercial nuclear facilities move towards closure. (authors)

  6. Platelet-derived growth factor stimulated mechanisms of glucosamine incorporation

    SciTech Connect (OSTI)

    Harrington, M.A.; Pledger, W.J. (Univ. of North Carolina, Chapel Hill (USA))

    1987-10-01T23:59:59.000Z

    Platelet-derived growth factor (PDGF) treatment of density-arrested BALB/c-3T3 cells results in increased ({sup 3}H)glucosamine (GlcN) incorporation into cellular material. The enhanced GlcN incorporation is not due to a preferential increase in proteoglycan synthesis as measured by ({sup 35}S)H{sub 2}SO{sub 4} incorporation. Approximately 50% of the GlcN incorporated in PDGF or platelet-poor plasma (PPP)-treated cultures enters N-linked glycoproteins. Addition of dolichol-phosphate (dolichol-P), a required intermediate in N-linked glycosylation, did not alter ({sup 3}H)GlcN incorporation in PDGF-treated cells but did increase incorporation in PPP-treated cultures to a level comparable to that observed for PDGF-treated cultures. PDGF-treated cultures contained twofold greater quantities of ({sup 3}H)GlcN dolichol intermediates and lipid-free glycoprotein. Over a 12-h time course 3-hydroxy-3-methylglutaryl coenzyme A reductase (HMG CoA reductase) activity was similar in cultures treated with PDGF or PPP. Results of these studies reveal that enhanced protein glycosylation in response to PDGF treatment is not the result of a direct effect on HMG CoA reductase.

  7. DSE Perspective on QCD Modeling, Distribution Amplitudes, and Form Factors

    E-Print Network [OSTI]

    Peter C Tandy

    2014-07-02T23:59:59.000Z

    We describe results for the pion distribution amplitude (PDA) at the non-perturbative scale $\\mu=~$2GeV by projecting the Poincar\\'e-covariant Bethe-Salpeter wave-function onto the light-front and use it to investigate the ultraviolet behavior of the electromagnetic form factor, $F_\\pi(Q^2)$, on the entire domain of spacelike $Q^2$. The significant dilation of this PDA compared to the known asymptotic PDA is a signature of dynamical chiral symmetry breaking (DCSB) on the light front. We investigate the transition region of $Q^2$ where non-perturbative behavior of constituent-like quarks gives way to the partonic-like behavior of quantum chromodynamics (QCD). The non-perturbative approach is based on the Dyson-Schwinger equation (DSE) framework for continuum investigations in QCD. The leading-order, leading-twist perturbative QCD result for $Q^2 F_\\pi(Q^2)$ underestimates the new DSE computation by just 15\\% on $Q^2\\gtrsim 8\\,$GeV$^2$, in stark contrast with the result obtained using the asymptotic PDA.

  8. Sensitivity of piping seismic responses to input factors

    SciTech Connect (OSTI)

    O'Connell, W.J.

    1985-05-01T23:59:59.000Z

    This report summarizes the sensitivity of peak dynamic seismic responses to input parameters. The responses have been modeled and calculated for the Zion Unit 1 plant as part of a seismic probabilistic risk assessment (PRA) performed by the US NRC Seismic Safety Margins Research Program (SSMRP). The SSMRP was supported by the US NRC Office of Nuclear Regulatory Research. Two sensitivity topics motivated the study. The first is the sensitivity of piping response to the mean value of piping damping. The second is the sensitivity of all the responses to the earthquake and model input parameters including soil, structure and piping parameters; this information is required for another study, the sensitivity of the plant system response (in terms of risk) to these dynamic input parameters and to other input factors. We evaluate the response sensitivities by performing a linear regression analysis (LRA) of the computer code SMACS. With SMACS we have a detailed model of the Zion plant and of the important dynamic processes in the soil, structures and piping systems. The qualitative results change with the location of the individual response. Different responses are in locations where the many potential influences have different effectiveness. The results give an overview of the complexity of the seismic dyanmic response of a plant. Within the diversity trends are evident in the influences of the input variables on the responses.

  9. Safety culture management: The importance of organizational factors

    SciTech Connect (OSTI)

    Haber, S.B.; Shurberg, D.A. [Brookhaven National Lab., Upton, NY (United States); Jacobs, R. [Pennsylvania State Univ., University Park, PA (United States); Hofmann, D. [Purdue Univ., Lafayette, IN (United States)

    1995-05-01T23:59:59.000Z

    The concept of safety culture has been used extensively to explain the underlying causes of performance based events, both positive and negative, across the nuclear industry. The work described in this paper represents several years of effort to identify, define and assess the organizational factors important to safe performance in nuclear power plants (NPPs). The research discussed in this paper is primarily conducted in support of the US Nuclear Regulatory Commission`s (NRC) efforts in understanding the impact of organizational performance on safety. As a result of a series of research activities undertaken by numerous NRC contractors, a collection of organizational dimensions has been identified and defined. These dimensions represent what is believed to be a comprehensive taxonomy of organizational elements that relate to the safe operation of nuclear power plants. Techniques were also developed by which to measure these organizational dimensions, and include structured interview protocols, behavioral checklists, and behavioral anchored rating scales (BARS). Recent efforts have focused on devising a methodology for the extraction of information related to the identified organizational dimensions from existing NRC documentation. This type of effort would assess the applicability of the organizational dimensions to existing NRC inspection and evaluation reports, refine the organizational dimensions previously developed so they are more relevant to the task of retrospective analysis, and attempt to rate plants based on the review of existing NRC documentation using the techniques previously developed for the assessment of organizational dimensions.

  10. Factors affecting coking pressures in tall coke ovens

    SciTech Connect (OSTI)

    Grimley, J.J.; Radley, C.E. [British Steel plc, Scunthorpe (United Kingdom). Scunthorpe Works

    1995-12-01T23:59:59.000Z

    The detrimental effects of excessive coking pressures, resulting in the permanent deformation of coke oven walls, have been recognized for many years. Considerable research has been undertaken worldwide in attempts to define the limits within which a plant may safely operate and to quantify the factors which influence these pressures. Few full scale techniques are available for assessing the potential of a coal blend for causing wall damage. Inference of dangerous swelling pressures may be made however by the measurement of the peak gas pressure which is generated as the plastic layers meet and coalesce at the center of the oven. This pressure is referred to in this report as the carbonizing pressure. At the Dawes Lane cokemaking plant of British Steel`s Scunthorpe Works, a large database has been compiled over several years from the regulator measurement of this pressure. This data has been statistically analyzed to provide a mathematical model for predicting the carbonizing pressure from the properties of the component coals, the results of this analysis are presented in this report.

  11. Knowledge Elecitation for Factors Affecting Taskforce Productivity using a Questionnaire

    E-Print Network [OSTI]

    Muhammad Sohail; Abdur Rashid Khan

    2009-07-30T23:59:59.000Z

    In this paper we present the process of Knowledge Elicitation through a structured questionnaire technique. This is an effort to depict a problem domain as Investigation of factors affecting taskforce productivity. The problem has to be solved using the expert system technology. This problem is the very first step how to acquire knowledge from the domain experts. Knowledge Elicitation is one of the difficult tasks in knowledge base formation which is a key component of expert system. The questionnaire was distributed among 105 different domain experts of Public and Private Organizations (i.e. Education Institutions, Industries and Research etc) in Pakistan. A total 61 responses from these experts were received. All the experts were well qualified, highly experienced and has been remained the members for selection committees a number of times for different posts. Facts acquired were analyzed from which knowledge was extracted and elicited. A standard shape was given to the questionnaire for further research as a knowledge learning tool. This tool may be used as a standard document for selection and promotion of employees.

  12. Factors regulating PAH transformations in disturbed coastal sediments

    SciTech Connect (OSTI)

    LeBlanc, L.A.; Gulnick, J.D.; Brownawell, B.J.; Taylor, G.T. [State Univ. of New York, Stony Brook, NY (United States). Marine Sciences Research Center

    1995-12-31T23:59:59.000Z

    Important limitations to bacterial transformations of polycyclic aromatic hydrocarbon (PAH) compounds in sediments include compound structure, dissolved concentration and oxygen availability. Here the authors present evidence suggesting that dissolved concentration is as important as structure in controlling degradation in radiolabeled sediments in flow through microcosms. Results from experiments where the mineralization rates of naphthalene phenanthrene and benzo[a]pyrene were related to the degree of oxygenation of suboxic sediments via sediment resuspension, showed that differences between mineralization rates and percent maximum degradation never varied by more than a factor of two between naphthalene and phenanthrene, despite phenanthrene having sixteen-fold greater hydrophobicity. The results also showed that dissolved naphthalene concentrations in the overlying water from frequently resuspended sediments were much farther below equilibrium predictions than dissolved concentrations of phenanthrene and B[a]P. The authors postulate that kinetic limitations to desorption into the aqueous phase limits the biodegradation of naphthalene to a greater extent than for phenanthrene and B[a]P. Results from experiments relating desorption from sediment to mineralization in side-by-side comparisons showed that labeled sediments undergoing resuspension in microcosms desorbed much less naphthalene than phenanthrene, and that the amount desorbed was largely underpredicted by a kinetic radial diffusion model, especially for naphthalene. Desorption rate limitation in the system may help to explain the similar degree of mineralization of naphthalene and phenanthrene seen in the experiments.

  13. Factors governing sustainable groundwater pumping near a river

    SciTech Connect (OSTI)

    Zhang, Y.; Hubbard, S.S.; Finsterle, S.

    2011-01-15T23:59:59.000Z

    The objective of this paper is to provide new insights into processes affecting riverbank filtration (RBF). We consider a system with an inflatable dam installed for enhancing water production from downstream collector wells. Using a numerical model, we investigate the impact of groundwater pumping and dam operation on the hydrodynamics in the aquifer and water production. We focus our study on two processes that potentially limit water production of an RBF system: the development of an unsaturated zone and riverbed clogging. We quantify river clogging by calibrating a time-dependent riverbed permeability function based on knowledge of pumping rate, river stage, and temperature. The dynamics of the estimated riverbed permeability reflects clogging and scouring mechanisms. Our results indicate that (1) riverbed permeability is the dominant factor affecting infiltration needed for sustainable RBF production; (2) dam operation can influence pumping efficiency and prevent the development of an unsaturated zone beneath the riverbed only under conditions of sufficient riverbed permeability; (3) slow river velocity, caused by dam raising during summer months, may lead to sedimentation and deposition of fine-grained material within the riverbed, which may clog the riverbed, limiting recharge to the collector wells and contributing to the development of an unsaturated zone beneath the riverbed; and (4) higher river flow velocities, caused by dam lowering during winter storms, scour the riverbed an thus increase its permeability. These insights can be used as the basis for developing sustainable water management of a RBF system.

  14. Spontaneous emission factor for semiconductor superluminescent diodes Yongsheng Zhao, Weihua Han, Junfeng Song, Xuemei Li, Yang Liu, Dingsan Gao,

    E-Print Network [OSTI]

    Cao, Hui

    Spontaneous emission factor for semiconductor superluminescent diodes Yongsheng Zhao, Weihua Han emission factor is an important parameter for the characterization of semiconductor light emitting devices difference involved in each device. In this article, the spontaneous emission factor for superluminescent

  15. The role of reactive oxygen species and calcium in the interferon regulatory factor 3 mediated toll like receptor 4 signaling

    E-Print Network [OSTI]

    Jiang, Zhiyuan

    2007-01-01T23:59:59.000Z

    Cutting edge: anthrax lethal toxin inhibits activation of IFN-regulatory factorCutting edge: anthrax lethal toxin inhibits activation of IFN-regulatory factorCutting edge: anthrax lethal toxin inhibits activation of IFN-regulatory factor

  16. Physical and biological factors determining the effective proton range

    SciTech Connect (OSTI)

    Grün, Rebecca [Department of Biophysics, GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt 64291 (Germany) [Department of Biophysics, GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt 64291 (Germany); Institute of Medical Physics and Radiation Protection, University of Applied Sciences Gießen, Gießen 35390 (Germany); Medical Faculty of Philipps-University Marburg, Marburg 35032 (Germany); Friedrich, Thomas; Krämer, Michael; Scholz, Michael [Department of Biophysics, GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt 64291 (Germany)] [Department of Biophysics, GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt 64291 (Germany); Zink, Klemens [Institute of Medical Physics and Radiation Protection, University of Applied Sciences Gießen, Gießen 35390, Germany and Department of Radiotherapy and Radiation Oncology, University Medical Center Giessen and Marburg, Marburg 35043 (Germany)] [Institute of Medical Physics and Radiation Protection, University of Applied Sciences Gießen, Gießen 35390, Germany and Department of Radiotherapy and Radiation Oncology, University Medical Center Giessen and Marburg, Marburg 35043 (Germany); Durante, Marco [Department of Biophysics, GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt 64291, Germany and Department of Condensed Matter Physics, Darmstadt University of Technology, Darmstadt 64289 (Germany)] [Department of Biophysics, GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt 64291, Germany and Department of Condensed Matter Physics, Darmstadt University of Technology, Darmstadt 64289 (Germany); Engenhart-Cabillic, Rita [Medical Faculty of Philipps-University Marburg, Marburg 35032, Germany and Department of Radiotherapy and Radiation Oncology, University Medical Center Giessen and Marburg, Marburg 35043 (Germany)] [Medical Faculty of Philipps-University Marburg, Marburg 35032, Germany and Department of Radiotherapy and Radiation Oncology, University Medical Center Giessen and Marburg, Marburg 35043 (Germany)

    2013-11-15T23:59:59.000Z

    Purpose: Proton radiotherapy is rapidly becoming a standard treatment option for cancer. However, even though experimental data show an increase of the relative biological effectiveness (RBE) with depth, particularly at the distal end of the treatment field, a generic RBE of 1.1 is currently used in proton radiotherapy. This discrepancy might affect the effective penetration depth of the proton beam and thus the dose to the surrounding tissue and organs at risk. The purpose of this study was thus to analyze the impact of a tissue and dose dependent RBE of protons on the effective range of the proton beam in comparison to the range based on a generic RBE of 1.1.Methods: Factors influencing the biologically effective proton range were systematically analyzed by means of treatment planning studies using the Local Effect Model (LEM IV) and the treatment planning software TRiP98. Special emphasis was put on the comparison of passive and active range modulation techniques.Results: Beam energy, tissue type, and dose level significantly affected the biological extension of the treatment field at the distal edge. Up to 4 mm increased penetration depth as compared to the depth based on a constant RBE of 1.1. The extension of the biologically effective range strongly depends on the initial proton energy used for the most distal layer of the field and correlates with the width of the distal penumbra. Thus, the range extension, in general, was more pronounced for passive as compared to active range modulation systems, whereas the maximum RBE was higher for active systems.Conclusions: The analysis showed that the physical characteristics of the proton beam in terms of the width of the distal penumbra have a great impact on the RBE gradient and thus also the biologically effective penetration depth of the beam.

  17. Applying Human Factors during the SIS Life Cycle

    SciTech Connect (OSTI)

    Avery, K.

    2010-05-05T23:59:59.000Z

    Safety Instrumented Systems (SIS) are widely used in U.S. Department of Energy's (DOE) nonreactor nuclear facilities for safety-critical applications. Although use of the SIS technology and computer-based digital controls, can improve performance and safety, it potentially introduces additional complexities, such as failure modes that are not readily detectable. Either automated actions or manual (operator) actions may be required to complete the safety instrumented function to place the process in a safe state or mitigate a hazard in response to an alarm or indication. DOE will issue a new standard, Application of Safety Instrumented Systems Used at DOE Nonreactor Nuclear Facilities, to provide guidance for the design, procurement, installation, testing, maintenance, operation, and quality assurance of SIS used in safety significant functions at DOE nonreactor nuclear facilities. The DOE standard focuses on utilizing the process industry consensus standard, American National Standards Institute/ International Society of Automation (ANSI/ISA) 84.00.01, Functional Safety: Safety Instrumented Systems for the Process Industry Sector, to support reliable SIS design throughout the DOE complex. SIS design must take into account human-machine interfaces and their limitations and follow good human factors engineering (HFE) practices. HFE encompasses many diverse areas (e.g., information display, user-system interaction, alarm management, operator response, control room design, and system maintainability), which affect all aspects of system development and modification. This paper presents how the HFE processes and principles apply throughout the SIS life cycle to support the design and use of SIS at DOE nonreactor nuclear facilities.

  18. Factors controlling Simpson Group production in central Oklahoma

    SciTech Connect (OSTI)

    Smith, P.W.

    1993-09-01T23:59:59.000Z

    The distribution of oil production from within the Simpson Group has been considered enigmatic because all of the sandstone members are present throughout the study area, but some fields produce from all of the sandstone members and others produce from only on horizon. The Simpson shales are not capable of generating hydrocarbons and the oil produced from the Simpson Group probably originated from the Devonian/Mississippian Woodford Shale. The McClain County fault juxtaposed the Woodford shale with the Simpson Group, which enabled lateral oil migration from the Woodford into the Simpson Group sandstones. Also, tortuous migration pathways allowed Woodford oil to ultimately accumulate in Simpson reservoirs which involve downthrown younger rocks adjacent to upthrown older rocks. Slight structural movements occurred contemporaneously with the deposition of the Simpson Group creating semi-parallel northeast-southwest-oriented thick and thin trends. Local structural movements were active during part or all of Simpson deposition. This created stratigraphic variations in the individual Simpson Group formations which cause the apex of a field to migrate (or even vanish) with depth. Consequently, lower Simpson structures may not be reflected by upper Simpson structures and, conversely, upper Simpson structures may not continue with depth. Variations in Viola deposition enhanced the vertical discontinuity of structures within the study area so that mapped Viola structures may not reflect underlying Simpson structures. Furthermore, a dramatic change in the orientation of the structural grain began to appear in the late Ordovician (Viola). Subsequent movements enhanced this later structural orientation, producing two acute structural trends that control the entrapment of oil. This study demonstrates that the dual structural imprint is probably the single most important factor in controlling the distribution and accumulation of hydrocarbons within the study area.

  19. Impact of HFIR LEU Conversion on Beryllium Reflector Degradation Factors

    SciTech Connect (OSTI)

    Ilas, Dan [ORNL

    2013-10-01T23:59:59.000Z

    An assessment of the impact of low enriched uranium (LEU) conversion on the factors that may cause the degradation of the beryllium reflector is performed for the High Flux Isotope Reactor (HFIR). The computational methods, models, and tools, comparisons with previous work, along with the results obtained are documented and discussed in this report. The report documents the results for the gas and neutronic poison production, and the heating in the beryllium reflector for both the highly enriched uranium (HEU) and LEU HFIR configurations, and discusses the impact that the conversion to LEU may have on these quantities. A time-averaging procedure was developed to calculate the isotopic (gas and poisons) production in reflector. The sensitivity of this approach to different approximations is gauged and documented. The results show that the gas is produced in the beryllium reflector at a total rate of 0.304 g/cycle for the HEU configuration; this rate increases by ~12% for the LEU case. The total tritium production rate in reflector is 0.098 g/cycle for the HEU core and approximately 11% higher for the LEU core. A significant increase (up to ~25%) in the neutronic poisons production in the reflector during the operation cycles is observed for the LEU core, compared to the HEU case, for regions close to the core s horizontal midplane. The poisoning level of the reflector may increase by more than two orders of magnitude during long periods of downtime. The heating rate in the reflector is estimated to be approximately 20% lower for the LEU core than for the HEU core. The decrease is due to a significantly lower contribution of the heating produced by the gamma radiation for the LEU core. Both the isotopic (gas and neutronic poisons) production and the heating rates are spatially non-uniform throughout the beryllium reflector volume. The maximum values typically occur in the removable reflector and close to the midplane.

  20. Factors influencing methane distribution in Texas ground water

    SciTech Connect (OSTI)

    Zhang, C.; Grossman, E.L.; Ammerman, J.W. [Texas A and M Univ., College Station, TX (United States)

    1998-01-01T23:59:59.000Z

    To determine the factors that influence the distribution of methane in Texas ground water, water samples were collected from 40 wells in east-central and central Texas aquifers. Among the chemical parameters examined, sulfate is most important in controlling methane distribution. Methane occurs in high concentration in east-central Texas only where sulfate concentration is low, supporting the hypothesis that abundant microbial methane production does not begin until sulfate is depleted. Because water samples from central Texas are high in either oxygen or sulfate, methane concentrations are low in these waters. A positive correlation between methane and sulfate in these waters indicates a different, perhaps thermogenic, origin for the trace methane. The {sup 13}C/{sup 12}C ratios of dissolved methane ranged from {minus}80{per_thousand} to {minus}21{per_thousand} in east-central Texas and {minus}41.2{per_thousand} to {minus}8.5{per_thousand} in central Texas. Low values of < {minus}50{per_thousand} in the east-central Texas ground water indicate a microbial origin for methane and are consistent with the observed sulfate-methane relationship; high {sup 13}C/{sup 12}C ratios of > {minus}31{per_thousand} likely result from bacterial methane oxidation. Similarly, methane with high {sup 13}C/{sup 12}C ratios in central Texas may reflect partial oxidation of the methane pool. Overall, water samples from both regions show a positive correlation between sulfate concentration and the {sup 13}C/{sup 12}C ratio of methane, suggesting that methane oxidation may be associated with sulfate reduction in Texas ground water.

  1. The Role of Multiple Transcription Factors In Archaeal Gene Expression

    SciTech Connect (OSTI)

    Charles J. Daniels

    2008-09-23T23:59:59.000Z

    Since the inception of this research program, the project has focused on two central questions: What is the relationship between the 'eukaryal-like' transcription machinery of archaeal cells and its counterparts in eukaryal cells? And, how does the archaeal cell control gene expression using its mosaic of eukaryal core transcription machinery and its bacterial-like transcription regulatory proteins? During the grant period we have addressed these questions using a variety of in vivo approaches and have sought to specifically define the roles of the multiple TATA binding protein (TBP) and TFIIB-like (TFB) proteins in controlling gene expression in Haloferax volcanii. H. volcanii was initially chosen as a model for the Archaea based on the availability of suitable genetic tools; however, later studies showed that all haloarchaea possessed multiple tbp and tfb genes, which led to the proposal that multiple TBP and TFB proteins may function in a manner similar to alternative sigma factors in bacterial cells. In vivo transcription and promoter analysis established a clear relationship between the promoter requirements of haloarchaeal genes and those of the eukaryal RNA polymerase II promoter. Studies on heat shock gene promoters, and the demonstration that specific tfb genes were induced by heat shock, provided the first indication that TFB proteins may direct expression of specific gene families. The construction of strains lacking tbp or tfb genes, coupled with the finding that many of these genes are differentially expressed under varying growth conditions, provided further support for this model. Genetic tools were also developed that led to the construction of insertion and deletion mutants, and a novel gene expression scheme was designed that allowed the controlled expression of these genes in vivo. More recent studies have used a whole genome array to examine the expression of these genes and we have established a linkage between the expression of specific tfb genes and the regulation of nitrogen metabolism and other global cellular responses.

  2. Human Factors Considerations in New Nuclear Power Plants: Detailed Analysis.

    SciTech Connect (OSTI)

    OHara,J.; Higgins, J.; Brown, W.; Fink, R.

    2008-02-14T23:59:59.000Z

    This Nuclear Regulatory Commission (NRC) sponsored study has identified human-performance issues in new and advanced nuclear power plants. To identify the issues, current industry developments and trends were evaluated in the areas of reactor technology, instrumentation and control technology, human-system integration technology, and human factors engineering (HFE) methods and tools. The issues were organized into seven high-level HFE topic areas: Role of Personnel and Automation, Staffing and Training, Normal Operations Management, Disturbance and Emergency Management, Maintenance and Change Management, Plant Design and Construction, and HFE Methods and Tools. The issues where then prioritized into four categories using a 'Phenomena Identification and Ranking Table' methodology based on evaluations provided by 14 independent subject matter experts. The subject matter experts were knowledgeable in a variety of disciplines. Vendors, utilities, research organizations and regulators all participated. Twenty issues were categorized into the top priority category. This Brookhaven National Laboratory (BNL) technical report provides the detailed methodology, issue analysis, and results. A summary of the results of this study can be found in NUREG/CR-6947. The research performed for this project has identified a large number of human-performance issues for new control stations and new nuclear power plant designs. The information gathered in this project can serve as input to the development of a long-term strategy and plan for addressing human performance in these areas through regulatory research. Addressing human-performance issues will provide the technical basis from which regulatory review guidance can be developed to meet these challenges. The availability of this review guidance will help set clear expectations for how the NRC staff will evaluate new designs, reduce regulatory uncertainty, and provide a well-defined path to new nuclear power plant licensing.

  3. An Integrated Suite of Tools to support Human Factors Engineering

    SciTech Connect (OSTI)

    Jacques V Hugo

    2001-08-01T23:59:59.000Z

    Human Factors Engineering (HFE) work for the nuclear industry imposes special demands on the practitioner in terms of the scope, complexity and safety requirements for humans in nuclear installations. Unfortunately HFE lags behind other engineering disciplines in the development and use of modern, powerful tools for the full range of analysis and design processes. HFE does not appear to be an attractive market for software and hardware developers and as a result, HFE practitioners usually have to rely on inefficient general-purpose tools like standard office software, or they have to use expensive special-purpose tools that offer only part of the solution they require and which also do not easily integrate with other tools. There have been attempts to develop generic software tools to support the HFE analyst and also to achieve some order and consistency in format and presentation. However, in spite of many years of development, very few tools have emerged that have achieved these goals. This would suggest the need for special tools, but existing commercial products have been found inadequate and to date not a single tool has been developed that adequately supports the special requirements of HFE work for the nuclear industry. This paper describes an integrated suite of generic as well as purpose-built tools that facilitate information solicitation, issues tracking, work domain analysis, functional requirements analysis, function allocation, operational sequence analysis, task analysis and development of HSI design requirements. In combination, this suite of tools supports the analytical as well as the representational aspects of key HFE activities primarily for new NPPs, including capturing information from subject matter experts and various source documents directly into the appropriate tool and then linking, analyzing and extending that information further to represent detailed functional and task information, and ultimately HSI design requirements. The paper also describes a tool developed especially for functional requirements analysis, function allocation, and task analysis.

  4. Factors Affecting Prostate Volume Estimation in Computed Tomography Images

    SciTech Connect (OSTI)

    Yang, Cheng-Hsiu [Department of Power Mechanical Engineering, National Tsing Hua University, Hsinchu, Taiwan (China); Wang, Shyh-Jen [Divisions of Experimental Surgery, Department of Surgery, Taipei Veterans General Hospital, Taipei, Taiwan (China); Institute of Biomedical Engineering, National Yang Ming University, Taipei, Taiwan (China); Lin, Alex Tong-Long [Divisions of Urology, Department of Surgery, Taipei Veterans General Hospital, Taipei, Taiwan (China); Lin, Chao-An, E-mail: calin@pme.nthu.edu.t [Department of Power Mechanical Engineering, National Tsing Hua University, Hsinchu, Taiwan (China)

    2011-04-01T23:59:59.000Z

    The aim of this study was to investigate how apex-localizing methods and the computed tomography (CT) slice thickness affected the CT-based prostate volume estimation. Twenty-eight volunteers underwent evaluations of prostate volume by CT, where the contour segmentations were performed by three observers. The bottom of ischial tuberosities (ITs) and the bulb of the penis were used as reference positions to locate the apex, and the distances to the apex were recorded as 1.3 and 2.0 cm, respectively. Interobserver variations to locate ITs and the bulb of the penis were, on average, 0.10 cm (range 0.03-0.38 cm) and 0.30 cm (range 0.00-0.98 cm), respectively. The range of CT slice thickness varied from 0.08-0.48 cm and was adopted to examine the influence of the variation on volume estimation. The volume deviation from the reference case (0.08 cm), which increases in tandem with the slice thickness, was within {+-} 3 cm{sup 3}, regardless of the adopted apex-locating reference positions. In addition, the maximum error of apex identification was 1.5 times of slice thickness. Finally, based on the precise CT films and the methods of apex identification, there were strong positive correlation coefficients for the estimated prostate volume by CT and the transabdominal ultrasonography, as found in the present study (r > 0.87; p < 0.0001), and this was confirmed by Bland-Altman analysis. These results will help to identify factors that affect prostate volume calculation and to contribute to the improved estimation of the prostate volume based on CT images.

  5. 2014 Across-Breed EPD Adjustment Factors Released When using EPDs, bulls from one breed cannot be compared to another unless an adjustment factor is used. Since 1993,

    E-Print Network [OSTI]

    Florida, University of

    Research Center in Clay Center, Nebraska have released adjustment factors for growth traits and maternal Tough Decisions I have heard several questions concerning 1.) Should I sell my calves at weaning?, And 2

  6. Semi-empirical calculation of quenching factors for scintillators: new results

    E-Print Network [OSTI]

    Tretyak, V I

    2014-01-01T23:59:59.000Z

    New results of calculation of quenching factors for ions in scintillators in semi-empirical approach described in [V.I. Tretyak, Astropart. Phys. 33 (2010) 40] are presented. In particular, they give additional arguments in favour of hypothesis that quenching factors for different particles can be described with the same Birks factor kB, if all the data were collected in the same conditions and processed in the same way.

  7. Form factor in K+ --> pi+ pi0 gamma: interference versus direct emission

    E-Print Network [OSTI]

    Luigi Cappiello; Giancarlo D'Ambrosio

    2007-04-19T23:59:59.000Z

    We analyze the effect of a form factor in the magnetic contribution to K+ --> pi+ pi0 gamma. We emphasize how this can show up experimentally: in particular we try to explore the difference between a possible interference contribution and a form factor in the magnetic part. The form factor used for K+ --> pi+ pi0 gamma is analogous to the one for KL --> pi+ pi- gamma, experimentally well established.

  8. Analysis of some novel uterine extracellular matrix proteins and a growth factor

    E-Print Network [OSTI]

    Al Ramadan, Saeed Yaseen

    2009-05-15T23:59:59.000Z

    .................................................................. 20 Rationale, Hypotheses and Objectives................................................ 24 II EXPRESSION OF SOME MEMBERS OF THE SIBLING PROTEIN FAMILY IN THE UTERUS OF SHEEP ....................................................... 27 Overview... and factor H Factor H is a multidomain, multifunctional plasma protein that was first isolated in 1965, and is present in human plasma at a concentration of about 500 ?g/mL. In the immune system, Factor H is a central discriminator of self and non...

  9. Connection between closeness of classical orbits and the factorization of radial Schrödinger equation

    E-Print Network [OSTI]

    Yu-feng Liu; Wu-jun Huo; Jinyan Zeng

    1999-11-25T23:59:59.000Z

    It was shown that the Runge-Lenz vector for a hydrogen atom is equivalent to the raising and lowering operators derived from the factorization of radial Schr\\"{o}dinger equation. Similar situation exists for an isotropic harmonic oscillator. It seems that there may exist intimate relation between the closeness of classical orbits and the factorization of radial Schr\\"{o}dinger equation. Some discussion was made about the factorization of a 1D Schr\\"{o}dinger equation.

  10. On the Equivalence of Nonnegative Matrix Factorization and K-means - Spectral Clustering

    E-Print Network [OSTI]

    Ding, Chris; He, Xiaofeng; Simon, Horst D.; Jin, Rong

    2008-01-01T23:59:59.000Z

    He, and H.D. Simon. On the equivalence of nonnegative matrixOn the Equivalence of Nonnegative Matrix Factorization and

  11. Functional Expression Cloning of Nanog, a Pluripotency Sustaining Factor in Embryonic Stem Cells. 

    E-Print Network [OSTI]

    Chambers, Ian; Colby, Douglas; Robertson, Morag; Nichols, Jennifer; Lee, Sonia; Tweedie, Susan; Smith, Austin G

    2003-01-01T23:59:59.000Z

    Embryonic stem (ES) cells undergo extended proliferation while remaining poised for multilineage differentiation. A unique network of transcription factors may characterize self-renewal and simultaneously suppress ...

  12. Multiple Mechanisms are Responsible for Transactivation of the Epidermal Growth Factor Receptor in Mammary Epithelial Cells

    SciTech Connect (OSTI)

    Rodland, Karin D.; Bollinger, Nikki; Ippolito, Danielle L.; Opresko, Lee; Coffey, Robert J.; Zangar, Richard C.; Wiley, H. S.

    2008-11-14T23:59:59.000Z

    REVIEW ENTIRE DOCUMENT AT: https://pnlweb.pnl.gov/projects/bsd/ERICA%20Manuscripts%20for%20Review/KD%20Rodland%20D7E80/HMEC_transactivation_ms01_15+Figs.pdf ABSTRACT: Using a single nontransformed strain of human mammary epithelial cells, we found that the ability of multiple growth factors and cytokines to induce ERK phosphorylation was dependent on EGFR activity. These included lysophosphatidic acid (LPA), uridine triphosphate, growth hormone, vascular endothelial growth factor, insulin-like growth factor-1 (IGF-1), and tumor necrosis factoralpha. In contrast, hepatocyte growth factor could stimulate ERK phosphorylation independent of EGFR activity...

  13. adp-ribosylation factor arf: Topics by E-print Network

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

    B -> K Jpsi data to extract a set of parameters which give the relevant hadronic matrix elements in terms of factorized amplitudes. Various sources of theoretical uncertainties...

  14. adp-ribosylation factor arf6p: Topics by E-print Network

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

    B -> K Jpsi data to extract a set of parameters which give the relevant hadronic matrix elements in terms of factorized amplitudes. Various sources of theoretical uncertainties...

  15. apoptosis-inducing factor aif: Topics by E-print Network

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

    B -> K Jpsi data to extract a set of parameters which give the relevant hadronic matrix elements in terms of factorized amplitudes. Various sources of theoretical uncertainties...

  16. Risk Factors in Heating, Ventilating, and Air-Conditioning Systems for Occupant Symptoms in

    E-Print Network [OSTI]

    Mendell, M.J.; Lei-Gomez, Q.; Mirer, A.; Seppanen, O.; Brunner, G.

    2007-01-01T23:59:59.000Z

    LBNL-61870 Risk Factors in Heating, Ventilating, and Air-for Occupant Symptoms in Heating, Ventilating, and Air-uncertain. Characteristics of heating, ventilating, and air-

  17. Influence of graphene on quality factor variation in a silicon ring resonator

    SciTech Connect (OSTI)

    Kou, Rai, E-mail: takahashi.rai@lab.ntt.co.jp [NTT Nanophotonics Center, NTT Corporation, Atsugi, Kanagawa 243-0198 (Japan); NTT Microsystem Integration Laboratories, NTT Corporation, Atsugi, Kanagawa 243-0198 (Japan); Graduate School of Advanced Science and Engineering, Waseda University, Shinjuku, Tokyo 169-8555 (Japan); Tanabe, Shinichi; Hibino, Hiroki [NTT Basic Research Laboratories, NTT Corporation, Atsugi, Kanagawa 243-0198 (Japan); Tsuchizawa, Tai; Yamada, Koji [NTT Nanophotonics Center, NTT Corporation, Atsugi, Kanagawa 243-0198 (Japan); NTT Microsystem Integration Laboratories, NTT Corporation, Atsugi, Kanagawa 243-0198 (Japan); Yamamoto, Tsuyoshi [NTT Microsystem Integration Laboratories, NTT Corporation, Atsugi, Kanagawa 243-0198 (Japan); Nakajima, Hirochika [Graduate School of Advanced Science and Engineering, Waseda University, Shinjuku, Tokyo 169-8555 (Japan)

    2014-03-03T23:59:59.000Z

    Selectively patterned graphene is integrated onto a silicon ring resonator to investigate the quality factor (Q factor) variation. The Q factor sharply decreases from 7900 to 1200 as the patterned graphene length increases from 0 to 20??m. A numerical estimation, which takes into account optical absorption by graphene, shows an exponential damping of the Q factor with increasing graphene length and is consistent with the experimental result. We expect these fundamental characterizations to be helpful in developing graphene-integrated silicon photonics applications.

  18. FACTORS DETERMINING RESIDENTIAL WATER DEMAND IN NORTH WESTERN ETHIOPIA, THE CASE OF MERAWI

    E-Print Network [OSTI]

    Walter, M.Todd

    FACTORS DETERMINING RESIDENTIAL WATER DEMAND IN NORTH WESTERN ETHIOPIA, THE CASE OF MERAWI among different households of the town of Merawi, North Western Ethiopia. Understanding variables

  19. Pion light-front wave function, parton distribution and the electromagnetic form factor

    E-Print Network [OSTI]

    Thomas Gutsche; Valery E. Lyubovitskij; Ivan Schmidt; Alfredo Vega

    2014-10-23T23:59:59.000Z

    We derive a light-front wave function of the pion, which reproduces its valence parton distribution and a electromagnetic form factor consistent with data.

  20. Expression profile of host restriction factors in HIV-1 elite controllers

    E-Print Network [OSTI]

    2013-01-01T23:59:59.000Z

    et al. : Expression profile of host restriction factors inOpen Access Expression profile of host restriction factorsthat a transcriptional profile signature of CD4+ T cells is

  1. Factors Affecting Carbohydrate Production and the Formation of Transparent Exopolymer Particles (TEP) by Diatoms

    E-Print Network [OSTI]

    Chen, Jie

    2014-03-25T23:59:59.000Z

    factors affect carbohydrate and TEP production by diatoms, and consequently influences aggregate formation. These influences have a profound impact on biogeochemical cycling of carbon....

  2. Integrative Protein Function Transfer using Factor Graphs and Heterogeneous Data Sources

    E-Print Network [OSTI]

    Mishra, Bud

    Integrative Protein Function Transfer using Factor Graphs and Heterogeneous Data Sources Antonina, translation initiation, enzymatic catalysis, and immune re- sponse. However, for a large portion of proteins

  3. Factors Important to Applicants to Osteopathic Versus Allopathic Emergency Medicine Residency Programs

    E-Print Network [OSTI]

    St. Amour, Bruce Alfred

    2014-01-01T23:59:59.000Z

    direct_filedisp.pl. Western Journal of Emergency MedicineM, Marco CA. Emergency medicine residency selection: factorsSselection of an emergency medicine residency program. Acad

  4. SciTech Connect: Use of indexed sensitivity factors in the analysis...

    Office of Scientific and Technical Information (OSTI)

    and was influenced by the particular sheath material used in the thermocouple construction. Relative sensitivity factors, indexed by a matrix ion species ratio, were used to...

  5. Nitrous Oxide Nitrification and Denitrification 15N Enrichment Factors from Amazon Forest Soils

    E-Print Network [OSTI]

    2006-01-01T23:59:59.000Z

    1997. Stable isotope enrichment in stratospheric nitrouson the apparent enrichment factors and the isotopologue ?differentiated in this manner. Enrichments in 18 O have been

  6. Key Response Planning Factors for the Aftermath of Nuclear Terrorism

    SciTech Connect (OSTI)

    Buddemeier, B R; Dillon, M B

    2009-01-21T23:59:59.000Z

    Despite hundreds of above-ground nuclear tests and data gathered from Hiroshima and Nagasaki, the effects of a ground-level, low-yield nuclear detonation in a modern urban environment are still the subject of considerable scientific debate. Extensive review of nuclear weapon effects studies and discussions with nuclear weapon effects experts from various federal agencies, national laboratories, and technical organizations have identified key issues and bounded some of the unknowns required to support response planning for a low-yield, ground-level nuclear detonation in a modern U.S. city. This study, which is focused primarily upon the hazards posed by radioactive fallout, used detailed fallout predictions from the advanced suite of three-dimensional (3-D) meteorology and plume/fallout models developed at Lawrence Livermore National Laboratory (LLNL), including extensive global Key Response Planning Factors for the Aftermath of Nuclear Terrorism geographical and real-time meteorological databases to support model calculations. This 3-D modeling system provides detailed simulations that account for complex meteorology and terrain effects. The results of initial modeling and analysis were presented to federal, state, and local working groups to obtain critical, broad-based review and feedback on strategy and messaging. This effort involved a diverse set of communities, including New York City, National Capitol Regions, Charlotte, Houston, Portland, and Los Angeles. The largest potential for reducing casualties during the post-detonation response phase comes from reducing exposure to fallout radiation. This can be accomplished through early, adequate sheltering followed by informed, delayed evacuation.B The response challenges to a nuclear detonation must be solved through multiple approaches of public education, planning, and rapid response actions. Because the successful response will require extensive coordination of a large number of organizations, supplemented by appropriate responses by local responders and the general population within the hazard zones, regional planning is essential to success. The remainder of this Executive Summary provides summary guidance for response planning in three areas: (1) Public Protection Strategy details the importance of early, adequate shelter followed by informed evacuation. (2) Responder Priorities identify how to protect response personnel, perform regional situational assessment, and support public safety. (3) Key Planning Considerations refute common myths and provide important information on planning how to respond in the aftermath of nuclear terrorism.

  7. The Central Ohio Chapter, an affiliate of the Human Factors and Ergonomics Society, was formed in 1987. Its purpose is to promote and advance the understanding of the human factors involved in the design, manufacture,

    E-Print Network [OSTI]

    Sommerich, Carolyn M.

    The Central Ohio Chapter, an affiliate of the Human Factors and Ergonomics Society, was formed person who is a member of the national Human Factors and Ergonomics Society. Members in good standing: "Human Factors and Ergonomics ­ Central Ohio" Mail your application to: Human Factors and Ergonomics

  8. A Highly Efficacious Lymphocyte Chemoattractant, Stromal Cell-derived Factor 1 (SDF-1)

    E-Print Network [OSTI]

    Springer, Timothy A.

    A Highly Efficacious Lymphocyte Chemoattractant, Stromal Cell-derived Factor 1 (SDF-1) By Conrad C-derived factor 1 (SDF-1). SDF-1 acts on lymphocytes and monocytes but not neutrophils in vitro and is both a highly efficacious and highly potent mononuclear cell attractant in vivo. In addition, SDF-1 induces

  9. A New Approximate Matrix Factorization for Implicit Time Integration in Air Pollution

    E-Print Network [OSTI]

    Botchev, Mike

    A New Approximate Matrix Factorization for Implicit Time Integration in Air Pollution Modeling M on the one hand and its efficiency on the other hand. For example, in air pollution modeling, AMF has been factorization, large sparse linear systems, stiff ODEs, method of lines, Rosenbrock methods, air pollution

  10. Automatic Test Factoring for Java David Saff Shay Artzi Jeff H. Perkins Michael D. Ernst

    E-Print Network [OSTI]

    Ernst, Michael

    Automatic Test Factoring for Java David Saff Shay Artzi Jeff H. Perkins Michael D. Ernst MIT {saff,artzi,jhp,mernst}@csail.mit.edu Abstract Test factoring creates fast, focused unit tests from slow system-wide tests; each new unit test exercises only a subset of the functionality exercised

  11. Identification and Characterization of the Arabidopsis Orthologs of Nuclear Transport Factor 2, the Nuclear

    E-Print Network [OSTI]

    Meier, Iris

    Identification and Characterization of the Arabidopsis Orthologs of Nuclear Transport Factor 2, the Nuclear Import Factor of Ran1 Qiao Zhao2 , Sara Leung2 , Anita H. Corbett, and Iris Meier* Plant Cellular, and nuclear envelope formation. Nuclear import of Ran relies on a small RanGDP-binding protein, Nuclear

  12. Agonist-Activated Glucocorticoid Receptor Inhibits Binding of Heat Shock Factor 1 to the Heat Shock

    E-Print Network [OSTI]

    Abraham, Nader G.

    Agonist-Activated Glucocorticoid Receptor Inhibits Binding of Heat Shock Factor 1 to the Heat Shock- cocorticoid receptor (GR) signaling in stressed cells will cause inhibition of the heat shock re- sponse as mediated by heat shock transcription factor 1 (HSF1). In that work, a full-length human heat shock protein

  13. Assessment of wind power predictability as a decision factor in the investment phase of wind farms

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Assessment of wind power predictability as a decision factor in the investment phase of wind farms on market revenue of, respectively, the predictability and the capacity factor of a wind farm or a cluster of wind farms. This is done through a real-life case study in West Denmark, including wind farm production

  14. The impact of electricity market schemes on predictability being a decision factor in the wind farm

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    The impact of electricity market schemes on predictability being a decision factor in the wind farm used criterion of capacity factor on the investment phase of a wind farm and on spatial planning, it is now recognized that accurate short-term forecasts of wind farms´ power output over the next few hours

  15. The impact of electricity market schemes on predictability being a decision factor in the wind farm

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    The impact of electricity market schemes on predictability being a decision factor in the wind farm of capacity factor on the investment phase of a wind farm and on spatial planning in an electricity market, it is now recognized that accurate short-term forecasts of wind farms´ power output over the next few hours

  16. Effects of Confinement and Orientation on the Thermoelectric Power Factor of Silicon Nanowires

    E-Print Network [OSTI]

    1 Effects of Confinement and Orientation on the Thermoelectric Power Factor of Silicon Nanowires dimensionality can improve the thermoelectric (TE) power factor of a device, offering an enhancement of the ZT analysis of the thermoelectric coefficients of n-type and p-type NWs of diameters from 12nm down to 3nm

  17. Gated Si nanowires for large thermoelectric power factors Neophytos Neophytou1

    E-Print Network [OSTI]

    1 Gated Si nanowires for large thermoelectric power factors Neophytos Neophytou1 and Hans Kosina2 1.Neophytou@warwick.ac.uk Abstract We investigate the effect of electrostatic gating on the thermoelectric power factor of p-type Si, coupled to linearized Boltzmann transport equation for the calculation of the thermoelectric coefficients

  18. How to Set the Fractional Power Control Compensation Factor in LTE ?

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    How to Set the Fractional Power Control Compensation Factor in LTE ? Marceau Coupechoux1, Jean-Les-Moulineaux, France jeanmarc.kelif@orange-ftgroup.com Abstract--The uplink power control procedure in Long Term focus on the former and study the compensation factor of the related Fractional Power Control (FPC

  19. Lyapunov-Based Distributed Control of the Safety Factor Profile in a Tokamak Plasma

    E-Print Network [OSTI]

    Boyer, Edmond

    Lyapunov-Based Distributed Control of the Safety Factor Profile in a Tokamak Plasma Federico safety-factor profile in a tokamak plasma. Using relevant physical models and simplifying assumptions within a tokamak plasma is a key issue to achieve (and maintain) in a safe manner high

  20. FACTORING WAVELET TRANSFORMS INTO LIFTING STEPS INGRID DAUBECHIES y AND WIM SWELDENS

    E-Print Network [OSTI]

    Guerrini, Carla

    FACTORING WAVELET TRANSFORMS INTO LIFTING STEPS INGRID DAUBECHIES y AND WIM SWELDENS #3; September discrete wavelet transform or two band subband filtering with finite filters can be decomposed of the wavelet or subband filters into elementary matrices. That such a factorization is possible is well

  1. FACTORING WAVELET TRANSFORMS INTO LIFTING STEPS INGRID DAUBECHIES y AND WIM SWELDENS \\Lambda

    E-Print Network [OSTI]

    Kutil, Rade

    FACTORING WAVELET TRANSFORMS INTO LIFTING STEPS INGRID DAUBECHIES y AND WIM SWELDENS \\Lambda any discrete wavelet transform or two band subband filtering with finite filters can be decomposed structures. This decomposition corresponds to a factorization of the polyphase matrix of the wavelet

  2. Estimating the Prime-Factors of an RSA Modulus and an Extension of the Wiener Attack

    E-Print Network [OSTI]

    Chen, Sheng-Wei

    Estimating the Prime-Factors of an RSA Modulus and an Extension of the Wiener Attack Hung-Min Sun- Factorization is difficult, p and q are simply estimated as N. In the Wiener attack, 2 N is adopted of the Wiener attack can be considered to be brute-guessing for the MSBs of p + q. Comparing with their work

  3. CO isotopologues in the Perseus Molecular Cloud Complex: the X-factor and regional variations

    E-Print Network [OSTI]

    Harvard-Smithsonian Center for Astrophysics,

    CO isotopologues in the Perseus Molecular Cloud Complex: the X-factor and regional variations Jaime clouds, and in this paper we use those data to find new calibrations of the "X-factor" and the 13CO from re-processed IRAS data; and 3) make use of the 12CO and 13CO (1-0) transition maps gathered

  4. Regular Article Kinetic modeling sheds light on the mode of action of recombinant factor VIIa on

    E-Print Network [OSTI]

    that are compatible with the available biochemical knowledge about thrombin generation mechanisms. Materials Elsevier Ltd. All rights reserved. Introduction Activated factor VII, or factor VIIa (FVIIa), is a critical,13]. The delicate biochemical balance between hemor- rhage and thrombosis is essentially a quantitative phenomenon

  5. THE CALCULATION OF QUALITY FACTOR OF FILM BULK ACOUSTIC RESONATORS WITH THE CONSIDERATION OF VISCOSITY

    E-Print Network [OSTI]

    Wang, Ji

    elastic constants which are proportional to vibration frequency. The actual value of the viscosity factor is given as an equivalent parameter. Such a procedure is useful in understanding the effect of viscosity factor, viscosity, electrical circuit parameters, layered structures, piezoelectric, film, FBAR 1

  6. SCIAMACHY MONITORING FACTORS: OBSERVATION AND END-TO-END CORRECTION OF INSTRUMENT PERFORMANCE DEGRADATION

    E-Print Network [OSTI]

    Tilstra, Gijsbert

    DEGRADATION Klaus Bramstedt1 , Stefan No¨el1 , Heinrich Bovensmann1 , John P. Burrows1 , Christophe Lerot2-factors. Key words: SCIAMACHY; m-factors; degradation; mon- itoring. 1. INTRODUCTION SCIAMACHY [1] is now seven's precursor Global Ozone Monitoring Experiment (GOME), the performance of the instrument is degrading

  7. Test Factoring: Focusing Test Suites for the Task at Hand Michael D. Ernst, research advisor

    E-Print Network [OSTI]

    Liskov, Barbara

    Test Factoring: Focusing Test Suites for the Task at Hand David Saff Michael D. Ernst, research and Subject Descriptors: D.2.5 (Testing and Debug­ ging): Testing tools General Terms: Algorithms, Design, Performance, Verification Keywords: test factoring, mock objects, unit testing 1. Problem: slow, unfocused

  8. Test Factoring: Focusing Test Suites for the Task at Hand Michael D. Ernst, research advisor

    E-Print Network [OSTI]

    Liskov, Barbara

    Test Factoring: Focusing Test Suites for the Task at Hand David Saff Michael D. Ernst, research and Subject Descriptors: D.2.5 (Testing and Debug- ging): Testing tools General Terms: Algorithms, Design, Performance, Verification Keywords: test factoring, mock objects, unit testing 1. Problem: slow, unfocused

  9. FACTORS THAT AFFECT THE FATIGUE LIFE OF RUBBER: A LITERATURE SURVEY

    E-Print Network [OSTI]

    Fatemi, Ali

    FACTORS THAT AFFECT THE FATIGUE LIFE OF RUBBER: A LITERATURE SURVEY W. V. MARS* ADVANCED RESEARCH ENGINEER COOPER TIRE & RUBBER COMPANY, 701 LIMA AVE., FINDLAY, OHIO, 45840 A. FATEMI UNIVERSITY OF TOLEDO, TOLEDO, OHIO, 43606 ABSTRACT Many factors are known to influence the mechanical fatigue life of rubber

  10. RESEARCH Open Access Analysis of primary risk factors for oral cancer

    E-Print Network [OSTI]

    Ahmad, Sajjad

    RESEARCH Open Access Analysis of primary risk factors for oral cancer from select US states , Michelle Chino3 , Karl Kingsley1* Abstract Objectives: To examine the primary risk factor for oral cancer in oral cancer incidence and mortality. Methods: Population-based data on oral cancer morbidity

  11. A New Approximate Matrix Factorization for Implicit Time Integration in Air Pollution

    E-Print Network [OSTI]

    Botchev, Mike

    A New Approximate Matrix Factorization for Implicit Time Integration in Air Pollution Modeling + M on the one hand and its e#ciency on the other hand. For example, in air pollution modeling, AMF has been factorization, large sparse linear systems, sti# ODEs, method of lines, Rosenbrock methods, air pollution

  12. Consumer Acceptance of Genetically Modified Foods in Korea: Factor and Cluster Analysis

    E-Print Network [OSTI]

    Neimark, Alexander V.

    Consumer Acceptance of Genetically Modified Foods in Korea: Factor and Cluster Analysis Benjamin #12;Consumer Acceptance of Genetically Modified Foods In Korea: Factor and Cluster Analysis Abstract and desirability of food biotechnology 2 #12;Introduction Consumer acceptance of genetically modified (GM) 1 food

  13. AREA COST FACTOR INDEXES PAX NEWSLETTER NO. 3.2.1

    E-Print Network [OSTI]

    US Army Corps of Engineers

    in the continental US). The ACF index is the combination factors of local construction costs of labor, materialAREA COST FACTOR INDEXES PAX NEWSLETTER NO. 3.2.1 15 December 2003 1. The attached updated area of the Army technical manual TM 5-800-4, Programming Cost Estimates for Military Construction, dated May 1994

  14. AREA COST FACTOR INDEXES PAX NEWSLETTER NO. 3.2.1

    E-Print Network [OSTI]

    US Army Corps of Engineers

    in the continental US). The ACF index is the combination factors of the local construction costs of labor, materialAREA COST FACTOR INDEXES PAX NEWSLETTER NO. 3.2.1 01 May 1998 1. The following is a list of updated 5-800-4, Programming Cost Estimates for Military Construction, dated May 1994. The updated ACF

  15. AREA COST FACTOR INDEXES PAX NEWSLETTER NO. 3.2.1

    E-Print Network [OSTI]

    US Army Corps of Engineers

    in the continental US). The ACF index is the combination factors of local construction costs of labor, materialAREA COST FACTOR INDEXES PAX NEWSLETTER NO. 3.2.1 2 January 2003 1. The attached updated area cost technical manual TM 5-800-4, Programming Cost Estimates for Military Construction, dated May 1994

  16. AREA COST FACTOR INDEXES PAX NEWSLETTER NO. 3.2.1

    E-Print Network [OSTI]

    US Army Corps of Engineers

    ). The ACF index is the combination factors of local construction costs of labor, material, and equipmentAREA COST FACTOR INDEXES PAX NEWSLETTER NO. 3.2.1 15 March 2002 1. The attached updated area cost manual TM 5-800-4, Programming Cost Estimates for Military Construction, dated May 1994. The updated ACF

  17. AREA COST FACTOR INDEXES PAX NEWSLETTER NO. 3.2.1

    E-Print Network [OSTI]

    US Army Corps of Engineers

    in the continental US). The ACF index is the combination factors of local construction costs of labor, material1 AREA COST FACTOR INDEXES PAX NEWSLETTER NO. 3.2.1 10 April 2001 1. The attached updated area cost technical manual TM 5-800-4, Programming Cost Estimates for Military Construction, dated May 1994

  18. AREA COST FACTOR INDEXES PAX NEWSLETTER NO. 3.2.1

    E-Print Network [OSTI]

    US Army Corps of Engineers

    in the continental US). The ACF index is the combination factors of local construction costs of labor, materialAREA COST FACTOR INDEXES PAX NEWSLETTER NO. 3.2.1 10 March 2000 1. The attached updated area cost technical manual TM 5-800-4, Programming Cost Estimates for Military Construction, dated May 1994

  19. Flavor decomposition of the nucleon electromagnetic form factors at low $Q^2$

    E-Print Network [OSTI]

    Qattan, I A; Alsaad, A

    2015-01-01T23:59:59.000Z

    The spatial distribution of charge and magnetization within the proton is encoded in the elastic form factors. These have been precisely measured in elastic electron scattering, and the combination of proton and neutron form factors allows for the separation of the up- and down-quark contributions. In this work, we extract the proton and neutron form factors from world's data with an emphasis on precise new data covering the low-momentum region, which is sensitive to the large-scale structure of the nucleon. From these, we separate the up- and down-quark contributions to the proton form factors. We combine cross section and polarization measurements of elastic electron-proton scattering to separate the proton form factors and two-photon exchange (TPE) contributions. We combine the proton form factors with parameterization of the neutron form factor data and uncertainties to separate the up- and down-quark contributions to the proton's charge and magnetic form factors. The extracted TPE corrections are compare...

  20. Binding and Translocation of Termination Factor Rho Studied at the Single-Molecule Level

    E-Print Network [OSTI]

    Straight, Aaron

    Binding and Translocation of Termination Factor Rho Studied at the Single-Molecule Level Daniel J; force spectroscopy Rho termination factor is an essential hexameric helicase responsible for terminating to investigate Rho­RNA binding in- teractions at the Rho utilization site of the tR1 terminator. Our results

  1. Agile Team Perceptions of Productivity Factors Claudia Melo, Daniela S. Cruzes, Fabio Kon and Reidar Conradi

    E-Print Network [OSTI]

    Agile Team Perceptions of Productivity Factors Claudia Melo, Daniela S. Cruzes, Fabio Kon,conradi}@idi.ntnu.no) Abstract--In this paper, we investigate agile team perceptions of factors impacting their productivity. Within this overall goal, we also investigate which productivity concept was adopted by the agile teams

  2. Environmental Factors and Breast Cancer Risk For millions of women whose lives

    E-Print Network [OSTI]

    Bezrukov, Sergey M.

    their health history, past environmental exposures, and lifestyle. The participants will be given yearly follow Gene The impact of family history on breast cancer risk suggests that genetic factors play an importantEnvironmental Factors and Breast Cancer Risk For millions of women whose lives have been affected

  3. Mechanisms of regulation in the interferon factor 3 (IRF- 3) pathway

    E-Print Network [OSTI]

    Limmer, Kirsten

    2008-01-01T23:59:59.000Z

    Cutting edge: apoptosis-regulating signal kinase 1 is required for reactive oxygen species-mediated activation of IFN regulatory factorCutting edge: apoptosis-regulating signal kinase 1 is required for reactive oxygen species-mediated activation of IFN regulatory factor

  4. Energy Policy 34 (2006) 32183232 Beyond the learning curve: factors influencing cost reductions

    E-Print Network [OSTI]

    Kammen, Daniel M.

    2006-01-01T23:59:59.000Z

    in photovoltaics Gregory F. Nemetà Energy and Resources Group, University of California, 310 Barrows Hall 3050 changed more dramatically than photovoltaics (PV), the cost of which has declined by a factor of nearly in the most impor- tant factors--plant size, module efficiency, and the cost of silicon. Ways in which

  5. Interaction between the Nucleotide Exchange Factor Mge1 and the Mitochondrial Hsp70 Ssc1*

    E-Print Network [OSTI]

    Craig, Elizabeth A

    Interaction between the Nucleotide Exchange Factor Mge1 and the Mitochondrial Hsp70 Ssc1* (Received the nucleotide re- lease factors, GrpE and Mge1, respectively. A loop, which protrudes from domain IA of the Dna. K108A/R213A Mge1 was able to stimulate nucleotide release from Ssc1 and function in refolding

  6. Prospective Study of Social and Other Risk Factors for Incidence of Type 2 Diabetes

    E-Print Network [OSTI]

    Brown, Lucy L.

    Prospective Study of Social and Other Risk Factors for Incidence of Type 2 Diabetes in the incidence of type 2 diabetes and the relation of health behaviors and psy- chosocial factors to the incidence of type 2 diabetes are not well established. Methods: Prospective occupational cohort study

  7. Long-term measurements of equilibrium factor with electrochemically etched CR-39 SSNTD

    E-Print Network [OSTI]

    Yu, K.N.

    .60 Keywords: Radon progeny concentration; Equilibrium factor; CR-39 1. Introduction Inhaled radon (222 Rn cancer [3]. Methods for long-term monitoring of the concentrations of radon progeny, or the equilibrium factor (which surro- gates the ratios of concentrations of radon progeny to the concentration of the 222

  8. Measurement Program Success Factors Revisited Frank Niessink and Hans van Vliet

    E-Print Network [OSTI]

    van Vliet, Hans

    Measurement Program Success Factors Revisited Frank Niessink and Hans van Vliet Division.vu.nl Abstract Success factors for measurement programs as identified in the literature typically focus on the `internals' of the measurement program: incremental implementation, support from manage- ment, a well

  9. FAST DAMPED GAUSS-NEWTON ALGORITHM FOR SPARSE AND NONNEGATIVE TENSOR FACTORIZATION

    E-Print Network [OSTI]

    Cichocki, Andrzej

    Terms-- canonical polyadic decomposition (CP), nonnegative tensor factorization, Gauss-Newton, LevenbergFAST DAMPED GAUSS-NEWTON ALGORITHM FOR SPARSE AND NONNEGATIVE TENSOR FACTORIZATION Anh Huy Phan for canonical polyadic decomposition (with/without nonnegative constraints) often accompany update rules

  10. Estimating quality factor and mean grain size of sediments from high-resolution marine seismic data

    E-Print Network [OSTI]

    National Oceanography Centre Southampton

    model of quality factor against mean grain size from published sediment studies, the mean grain sizes with frequency. The Biot-Stoll model shows a marked velocity dispersion and nonlinear transition in compressionalEstimating quality factor and mean grain size of sediments from high-resolution marine seismic data

  11. Factors affecting the availability of thick epiphyte mats and other potential nest platforms for

    E-Print Network [OSTI]

    Factors affecting the availability of thick epiphyte mats and other potential nest platforms, Catherine Conroy, Volker Bahn, Irene A. Manley, Alvin Cober, and David B. Lank Abstract: Nest platforms about factors that affect the availability of platforms or the growth of canopy epiphytes that provide

  12. Emission Factor for Antimony in Brake Abrasion Dusts as One of the

    E-Print Network [OSTI]

    Short, Daniel

    originating from automobiles. Abrasion dusts from commercially available brake pads (nonasbestos organic type factors originating from automobiles were approximately 32 µg Sb/braking/car for PM10 and 22 µg Sb of automobiles to the atmospheric Sb concen- tration. The emission factors of pollutants from automobiles have

  13. Establishing Standard Source Energy and Emission Factors for Energy Use in Buildings

    SciTech Connect (OSTI)

    Deru, M.

    2007-01-01T23:59:59.000Z

    This procedure provides source energy factors and emission factors to calculate the source (primary) energy and emissions from a building's annual site energy consumption. This report provides the energy and emission factors to calculate the source energy and emissions for electricity and fuels delivered to a facility and combustion of fuels at a facility. The factors for electricity are broken down by fuel type and presented for the continental United States, three grid interconnections, and each state. The electricity fuel and emission factors are adjusted for the electricity and the useful thermal output generated by combined heat and power (CHP) plants larger than one megawatt. The energy and emissions from extracting, processing, and transporting the fuels, also known as the precombustion effects, are included.

  14. Liver-derived systemic factors drive ?-cell hyperplasia in insulin resistant states

    SciTech Connect (OSTI)

    El Ouaamari, Abdelfattah; Kawamori, Dan; Dirice, Ercument; Liew, Chong Wee; Shadrach, Jennifer L.; Hu, Jiang; Katsuta, Hitoshi; Hollister-Lock, Jennifer; Qian, Weijun; Wagers, Amy J.; Kulkarni, Rohit N.

    2013-02-21T23:59:59.000Z

    Integrative organ cross-talk regulates key aspects of energy homeostasis and its dysregulation may underlie metabolic disorders such as obesity and diabetes. To test the hypothesis that cross-talk between the liver and pancreatic islets modulates ?-cell growth in response to insulin resistance, we used the Liver-specific Insulin Receptor Knockout (LIRKO) mouse, a unique model that exhibits dramatic islet hyperplasia. Using complementary in vivo parabiosis and transplantation assays, and in vitro islet culture approaches, we demonstrate that humoral, non-neural, non-cell autonomous factor(s) induce ?-cell proliferation in LIRKO mice. Furthermore, we report that a hepatocyte-derived factor(s) stimulates mouse and human ?-cell proliferation in ex vivo assays, independent of ambient glucose and insulin levels. These data implicate the liver as a critical source of ?-cell growth factors in insulin resistant states.

  15. Appraisal of the M factor and the role of building thermal mass in energy conservation

    SciTech Connect (OSTI)

    Childs, K.W.

    1980-07-01T23:59:59.000Z

    A new concept in heat transfer calculations known as the M factor has been introduced to account for thermal storage due to mass in building walls. This report reviews the assumptions behind the development of the M factor. The effect of mass in walls on seasonal or annual energy transmission through walls is examined, as well as the applicability of the M factor as a correction to account for any mass effects. In connection with the effect of mass on seasonal energy consumption, the use of a M factor correction when checking a building for compliance with energy conservation standards such as ASHRAE Standard 90-75 is investigated. The suitability of applying the M factor correction to the peak load determined by a steady-state calculation for equipment sizing is also explored. In addition, the relationship of thermal mass to other parameters that determine loads and energy consumption is investigated, and the role of thermal mass in energy conservation is discussed.

  16. Source Apportionment of Stack Emissions from Research and Development Facilities Using Positive Matrix Factorization

    SciTech Connect (OSTI)

    Ballinger, Marcel Y.; Larson, Timothy V.

    2014-12-01T23:59:59.000Z

    Emissions from research and development (R&D) facilities are difficult to characterize due to the wide variety of processes used, changing nature of research, and large number of chemicals. Positive matrix factorization (PMF) was applied to volatile organic compounds (VOCs) concentrations measured in the main exhaust stacks of four different R&D buildings to identify the number and composition of major contributing sources. PMF identified from 9-11 source-related factors contributing to the stack emissions depending on the building. The factors that were similar between buildings were major contributors to trichloroethylene (TCE), acetone, and ethanol emissions. Several other factors had similar profiles for two or more buildings but not for all four. One factor for each building was a combination of p/m-xylene, o-xylene and ethylbenzene. At least one factor for each building was identified that contained a broad mix of many species and constraints were used in PMF to modify the factors to resemble more closely the off-shift concentration profiles. PMF accepted the constraints with little decrease in model fit. Although the PMF model predicted the profiles of the off-shift samples, the percent of total emissions was under-predicted by the model versus the measured data.

  17. On the need for simultaneity between X-ray and radio observations in Doppler factor estimates

    E-Print Network [OSTI]

    Liodakis, I; Pavlidou, V

    2015-01-01T23:59:59.000Z

    We use archival X-ray and radio VLBA data to calculate inverse Compton Doppler factors for four high-power radio, $\\gamma$-loud Flat Spectrum Radio Quasars frequently monitored by the F-GAMMA project. We explore the effect of the non-simultaneity between X-ray and radio observations by calculating Doppler factors for simultaneous and non-simultaneous observations. By comparing the newly re-calculated values from this work and archival values with variability Doppler factors, we show that simultaneous/quasi-simultaneous X-ray and radio observations can provide a reliable estimate of the true Doppler factor in blazar jets. For the particular case of PKS0528+134 we find that a time-difference of up to 1 week provides inverse Compton Doppler factor estimates consistent with the variability Doppler factor of this source at the 19% percent level. In contrast, time differences of more than 30 days between radio and X-ray observations result to discrepancies from 100% to more than a factor of 4.

  18. VARIATION WITH EQUILIBRIUM CONDITION OF THE CALIBRATION FACTORS FOR CONTINUOUS RADON PROGENY MONITORS

    E-Print Network [OSTI]

    Phillip H. Jenkins

    The calibration factor for a continuous monitor that uses gross alpha-particle counting for measuring radon progeny concentration theoretically should vary as a function of the relative concentrations of the radon progeny; therefore, an inherent error is introduced by using a constant calibration factor, regardless of the equilibrium condition, as is the practice for most models of radon progeny monitor. An equation was derived describing the calibration factor as a function of the concentrations of the radon progeny and was used to calculate values of the calibration factor over the entire theoretical range of relative concentrations of radon progeny that comprise a constant collective radon progeny concentration. The results of these calculations showed that the calibration factor varies by approximately 10 % over the entire theoretical range of relative concentrations of radon progeny. The range of relative concentrations that typically exist in indoor air is a small subset of the entire range that is theoretically possible; therefore, the calibration factor varies, in practice, due to this effect by less than 10 % and the inherent error introduced by the detection and analysis method is not serious. Loss of radon progeny, particularly 218~0, due to plateout on surfaces of the monitor before the progeny are collected on the filter has the effect of lowering the value of the calibration factor. This effect can be significant at conditions of low equilibrium when the fraction of radon progeny that are unattached to aerosols in the air is increased and plateout is more likely to occur.

  19. Spatial correction factors for YALINA Booster facility loaded with medium and low enriched fuels

    SciTech Connect (OSTI)

    Talamo, A.; Gohar, Y. [Argonne National Laboratory, 9700 S. Cass Ave, Argonne, IL 60439 (United States); Bournos, V.; Fokov, Y.; Kiyavitskaya, H.; Routkovskaya, C. [Joint Inst. for Power and Nuclear Research-Sosny, 99 Academician A.K.Krasin Str, Minsk 220109 (Belarus)

    2012-07-01T23:59:59.000Z

    The Bell and Glasstone spatial correction factor is used in analyses of subcritical assemblies to correct the experimental reactivity as function of the detector position. Besides the detector position, several other parameters affect the correction factor: the energy weighting function of the detector, the detector size, the energy-angle distribution of source neutrons, and the reactivity of the subcritical assembly. This work focuses on the dependency of the correction factor on the detector material and it investigates the YALINA Booster subcritical assembly loaded with medium (36%) and low (10%) enriched fuels. (authors)

  20. Scion dominance and related factors influencing compatability in citrus graft unions

    E-Print Network [OSTI]

    Cintron, Rafael H.

    1946-01-01T23:59:59.000Z

    SCION DOMINANCE AND RELATED FACTORS INFLUENCING COMPATIBILITY IN CITRUS GRAFT UNIOHS A The?ia SC H? Clntr&i August 194C Approval as to atyl* and content recommended* m t m m m m m m belated factors nfHOTQiua compatibilitt in cithus m m r... Major Subjectt Horticulture By Rafael H* Clntr&n August 1946 SCI01T DOHIH/ffiCB AND RELATED FACTORS INFLUENCING COMPATIBILITY ITT CITRUS GR APT UNIONS 14-f 706 'The writer1 wishes to express M s sincere approeiation to Dr* Guy W? Adrianee# Head...

  1. Relative g-factor measurements in {sup 54}Fe, {sup 56}Fe, and {sup 58}Fe

    SciTech Connect (OSTI)

    East, M. C.; Stuchbery, A. E.; Chamoli, S. K.; Kibedi, T. [Department of Nuclear Physics, Research School of Physics and Engineering, Australian National University, Canberra ACT 0200 (Australia); Pinter, J. S.; Crawford, H. L.; Mantica, P. F. [NSCL and Department of Chemistry, Michigan State University, Michigan 48824 (United States); Wilson, A. N. [Department of Nuclear Physics, Research School of Physics and Engineering, Australian National University, Canberra ACT 0200 (Australia); Department of Physics, Australian National University, Canberra, ACT 0200 (Australia)

    2009-02-15T23:59:59.000Z

    The g factors of the 2{sub 1}{sup +} states in {sup 54}Fe and {sup 58}Fe have been measured relative to the 2{sub 1}{sup +} state g factor of {sup 56}Fe using the transient-field technique in inverse kinematics. The results are in satisfactory agreement with recent shell model calculations in the fp model space. For {sup 56}Fe and {sup 58}Fe the g factors approach Z/A and are therefore also consistent with collective interpretations of these 2{sup +} states.

  2. Strange mesons and kaon-to-pion transition form factors from holography

    E-Print Network [OSTI]

    Zainul Abidin; Carl E. Carlson

    2009-10-08T23:59:59.000Z

    We present a calculation of the $K_{\\ell 3}$ transition form factors using the AdS/QCD correspondence. We also solidify and extend our ability to calculate quantities in the flavor-broken versions of AdS/QCD. The normalization of the form factors is a crucial ingredient for extracting $|V_{us}|$ from data, and the results obtained here agree well with results from chiral perturbation theory and lattice gauge theory. The slopes and curvature of the form factors agree well with the data, and with what results are available from other methods of calculation.

  3. Aberrant Response Patterns as a Multidimensional Phenomenon: Using Factor-Analytic Model Comparison to Detect Cheating

    E-Print Network [OSTI]

    Clark III, John Michael

    2010-06-02T23:59:59.000Z

    This dissertation proposes a new factor-analytic technique for detecting cheating on exams. Person-fit statistics have been developed to assess the extent to which examinees' response patterns are consistent with expectation, ...

  4. Binding of transcription factors adapts to resolve information-energy trade-off

    E-Print Network [OSTI]

    Kagan, Yonatan Savir Jacob

    2015-01-01T23:59:59.000Z

    We examine the binding of transcription factors to DNA in terms of an information transfer problem. The input of the noisy channel is the biophysical signal of a factor bound to a DNA site, and the output is a distribution of probable DNA sequences at this site. This task involves an inherent tradeoff between the information gain and the energetics of the binding interaction - high binding energies provide higher information gain but hinder the dynamics of the system as factors are bound too tightly. We show that adaptation of the binding interaction towards increasing information transfer under energy constraints implies that the information gain per specific binding energy at each base-pair is maximized. We analyze hundreds of prokaryote and eukaryote transcription factors from various organisms to evaluate the discrimination energies. We find that, in accordance with our theoretical argument, binding energies nearly maximize the information gain per energy. This work suggests the adaptation of information ...

  5. Utilizing Vertebrates to Understand the Factors that Influence Terrestrial Ecosystem Structure

    E-Print Network [OSTI]

    Redman, Cory

    2012-07-16T23:59:59.000Z

    Debbie J. Thomas Frances Gelwick Head of Department, J. Rick Giardino May 2012 Major Subject: Geology iii ABSTRACT Utilizing Vertebrates to Understand the Factors that Influence Terrestrial Ecosystem Structure. (May...

  6. Form factors for $\\mathrm B_\\mathrm s \\to \\mathrm K \\ell ?$ decays in Lattice QCD

    E-Print Network [OSTI]

    Felix Bahr; Fabio Bernardoni; John Bulava; Anosh Joseph; Alberto Ramos; Hubert Simma; Rainer Sommer

    2014-11-14T23:59:59.000Z

    We present the current status of the computation of the form factor $f_+ (q^2)$ for the semi-leptonic decay $\\mathrm B_\\mathrm s \\to \\mathrm K \\ell \

  7. asphyxia-related risk factors: Topics by E-print Network

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

    2010-01-01 44 Review Epidemiology, risk factors, and lifestyle modifications for gout CiteSeer Summary: Gout affects more than 1 % of adults in the USA, and it is the most...

  8. Study of factors related to childhood leukemia and to central nervous system tumors in California

    E-Print Network [OSTI]

    Oksuzyan, Sona

    2013-01-01T23:59:59.000Z

    Ross, Epidemiology of acute leukemia in children and adults.Risk factors for acute leukemia in children: a review.syndrome and childhood acute leukemia. Prog Clin Biol Res,

  9. Is Cholesterol Sulfate Deficiency a Common Factor in Preeclampsia, Autism, and Pernicious Anemia?

    E-Print Network [OSTI]

    Seneff, Stephanie

    In a recent paper, we proposed that a contributing factor in autism is a deficiency in cholesterol sulfate supply. In this paper, we investigate a link between preeclampsia and subsequent autism in the child, and we ...

  10. Depressive and anxiety disorders in primary care: factors affecting physicians' use of screening information

    E-Print Network [OSTI]

    Maner, Ashley Meredith

    1999-01-01T23:59:59.000Z

    to logistic and multiple regression analyses, most notably severity of the psychiatric disorder and number of somatic complaints. The impact of demographic, psychiatric, and physical health factors varied greatly depending on the specific management activity...

  11. Regulation of cell fate by phosphorylation : a tale of two transcription factors

    E-Print Network [OSTI]

    Tootle, Tina Louise

    2004-01-01T23:59:59.000Z

    As transcription factors are the nuclear effectors of signaling cascades, mechanisms must exist to specifically regulate their activities in response to signaling events. Regulation can occur at the DNA, RNA, or protein ...

  12. Regulation of mTOR complex 1 in response to growth factors and nutrients

    E-Print Network [OSTI]

    Sancak, Yasemin S. (Yasemin Shechner)

    2010-01-01T23:59:59.000Z

    In multicellular organisms, cells ensure the simultaneous availability of growth factors and nutrients before they invest in cellular processes that lead to growth. The TOR kinase is a master regulator of cellular growth ...

  13. Energy Price Indices and Discount Factors for Life-Cycle Cost...

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

    Life-Cycle Cost Analysis - 2015 Energy Price Indices and Discount Factors for Life-Cycle Cost Analysis - 2015 Handbook describes the annual supplements to the NIST Handbook 135 and...

  14. Determination of the ?(1232) axial and pseudoscalar form factors from lattice QCD

    E-Print Network [OSTI]

    Alexandrou, Constantia

    We present a lattice QCD calculation of the ?(1232) matrix elements of the axial-vector and pseudoscalar currents. The decomposition of these matrix elements into the appropriate Lorentz invariant form factors is carried ...

  15. Characterization and informed design of downregulating anti-epidermal growth factor receptor antibodies

    E-Print Network [OSTI]

    Spangler, Jamie Berta

    2011-01-01T23:59:59.000Z

    Due to its common dysregulation in epithelial-based cancers and the extensive characterization of its role in tumor growth, epidermal growth factor receptor (EGFR) has long been an attractive target for monoclonal antibodies. ...

  16. Factors influencing the efficiency and cost effectiveness of large power transformers

    SciTech Connect (OSTI)

    Peacock, D.W.

    1980-01-01T23:59:59.000Z

    The purpose of this paper is to identify those factors that can influence transformer design, to identify some fundamental and practical constraints that the designer must satisfy, and to show the effect on transformer efficiency and evaluated cost.

  17. Energy Price Indices and Discount Factors for Life-Cycle Cost...

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

    NISTIR 85-3273-29 Energy Price Indices and Discount Factors for Life-Cycle Cost Analysis - 2014 Annual Supplement to NIST Handbook 135 Amy S. Rushing Joshua D. Kneifel Priya...

  18. Abstract Successful transformation of plant tissue using Agrobacterium relies on several factors including bacterial

    E-Print Network [OSTI]

    Finer, John J.

    Abstract Successful transformation of plant tissue using Agrobacterium relies on several factors including bacterial infection, host recognition, and transformation competency of the target tissue particle bombardment, Agrobacterium-mediated transformation of this tissue has not been demonstrated. We

  19. Exploring the factors associated with preconception health behaviors among women of childbearing age: a naturalistic inquiry

    E-Print Network [OSTI]

    Delissaint, Dieula

    2009-05-15T23:59:59.000Z

    Poor maternal health is one of the major risk factors related to adverse birth outcomes. Women entering pregnancy with poor health status are at higher risk of these outcomes. Prenatal care has been established as the standard prevention paradigm...

  20. Local pharmacokinetics and pharmacodynamics of angiogenic growth factors in myocardial tissue

    E-Print Network [OSTI]

    Le, Kha N., 1973-

    2009-01-01T23:59:59.000Z

    Early enthusiasm over angiogenic therapy, a method to induce vascular regeneration to treat ischemic tissue with growth factors, has been tempered by a series of unsuccessful clinical trials with limited late efficacy and ...