Cognitive Effects of Multimedia Learning
Gallo, Linda C.
Cognitive Effects of Multimedia Learning Robert Z. Zheng University of Utah, USA Hershey · New York of multimedia learning / Robert Zheng, editor. p. cm. Includes bibliographical references and index. Summary: "This book identifies the role and function of multimedia in learning through a collection of research
Order Effects in Incremental Learning 1. Introduction
Langley, Pat
of incremental learning and introducing some distinctions among types of order effects. We then turn to a moreOrder Effects in Incremental Learning 1. Introduction Intelligent agents, including humans, exist in an environment that changes over time. Thus, it seems natural that models of learning in such agents take
Machine learning of parameters for accurate semiempirical quantum chemical calculations
DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)
Dral, Pavlo O.; von Lilienfeld, O. Anatole; Thiel, Walter
2015-04-14T23:59:59.000Z
We investigate possible improvements in the accuracy of semiempirical quantum chemistry (SQC) methods through the use of machine learning (ML) models for the parameters. For a given class of compounds, ML techniques require sufficiently large training sets to develop ML models that can be used for adapting SQC parameters to reflect changes in molecular composition and geometry. The ML-SQC approach allows the automatic tuning of SQC parameters for individual molecules, thereby improving the accuracy without deteriorating transferability to molecules with molecular descriptors very different from those in the training set. The performance of this approach is demonstrated for the semiempiricalmore »OM2 method using a set of 6095 constitutional isomers C7H10O2, for which accurate ab initio atomization enthalpies are available. The ML-OM2 results show improved average accuracy and a much reduced error range compared with those of standard OM2 results, with mean absolute errors in atomization enthalpies dropping from 6.3 to 1.7 kcal/mol. They are also found to be superior to the results from specific OM2 reparameterizations (rOM2) for the same set of isomers. The ML-SQC approach thus holds promise for fast and reasonably accurate high-throughput screening of materials and molecules.« less
RESEARCH PAPER Calculating the effective permeability of sandstone with
Borja, Ronaldo I.
RESEARCH PAPER Calculating the effective permeability of sandstone with multiscale lattice microtomo- graphic images of a sandstone, with sample resolution of 3.34 lm. We discuss the predictive
Effect of gis learning on spatial ability
Lee, Jong Won
2006-08-16T23:59:59.000Z
This research used a spatial skills test and cognitive-mapping test to examine the effect of GIS learning on the spatial ability and spatial problem solving of college students. A total of 80 participants, undergraduate students at Texas A...
Effect of gis learning on spatial ability
Lee, Jong Won
2006-08-16T23:59:59.000Z
This research used a spatial skills test and cognitive-mapping test to examine the effect of GIS learning on the spatial ability and spatial problem solving of college students. A total of 80 participants, undergraduate students at Texas A...
Mesh size and code option effects of strength calculations
Kaul, Ann M [Los Alamos National Laboratory
2010-12-10T23:59:59.000Z
Modern Lagrangian hydrodynamics codes include numerical methods which allow calculations to proceed past the point obtainable by a purely Lagrangian scheme. These options can be employed as the user deems necessary to 'complete' a calculation. While one could argue that any calculation is better than none, to truly understand the calculated results and their relationship to physical reality, the user needs to understand how their runtime choices affect the calculated results. One step toward this goal is to understand the effect of each runtime choice on particular pieces of the code physics. This paper will present simulation results for some experiments typically used for strength model validation. Topics to be covered include effect of mesh size, use of various ALE schemes for mesh detangling, and use of anti-hour-glassing schemes. Experiments to be modeled include the lower strain rate ({approx} 10{sup 4} s{sup -1}) gas gun driven Taylor impact experiments and the higher strain rate ({approx} 10{sup 5}-10{sup 6} s{sup -1}) HE products driven perturbed plate experiments. The necessary mesh resolution and the effect of the code runtime options are highly dependent on the amount of localization of strain and stress in each experiment. In turn, this localization is dependent on the geometry of the experimental setup and the drive conditions.
Fully microscopic shell-model calculations with realistic effective hamiltonians
Coraggio, L; Gargano, A; Itaco, N; Kuo, T T S
2011-01-01T23:59:59.000Z
The advent of nucleon-nucleon potentials derived from chiral perturbation theory, as well as the so-called V-low-k approach to the renormalization of the strong short-range repulsion contained in the potentials, have brought renewed interest in realistic shell-model calculations. Here we focus on calculations where a fully microscopic approach is adopted. No phenomenological input is needed in these calculations, because single-particle energies, matrix elements of the two-body interaction, and matrix elements of the electromagnetic multipole operators are derived theoretically. This has been done within the framework of the time-dependent degenerate linked-diagram perturbation theory. We present results for some nuclei in different mass regions. These evidence the ability of realistic effective hamiltonians to provide an accurate description of nuclear structure properties.
Fully microscopic shell-model calculations with realistic effective hamiltonians
L. Coraggio; A. Covello; A. Gargano; N. Itaco; T. T. S. Kuo
2011-01-24T23:59:59.000Z
The advent of nucleon-nucleon potentials derived from chiral perturbation theory, as well as the so-called V-low-k approach to the renormalization of the strong short-range repulsion contained in the potentials, have brought renewed interest in realistic shell-model calculations. Here we focus on calculations where a fully microscopic approach is adopted. No phenomenological input is needed in these calculations, because single-particle energies, matrix elements of the two-body interaction, and matrix elements of the electromagnetic multipole operators are derived theoretically. This has been done within the framework of the time-dependent degenerate linked-diagram perturbation theory. We present results for some nuclei in different mass regions. These evidence the ability of realistic effective hamiltonians to provide an accurate description of nuclear structure properties.
Stimulus exposure effects in human associative learning
Gluck, Mark
Stimulus exposure effects in human associative learning Catherine E. Myers Rutgers University, Newark, NJ, U.S.A. Lindsay M. Oliver Glasgow Caledonian University, Glasgow, U.K. Stacey G. Warren should be sent to Catherine E. Myers, Department of Psychology, Rutgers University, Newark, NJ 07102, U
Calculations of multiquark functions in effective models of strong interaction
Jafarov, R. G., E-mail: raufjafarov@bsu.az [Institute for Physical Problems of Baku State University (Azerbaijan); Rochev, V. E. [Institute of High Energy Physics, Theoretical Division (Russian Federation)] [Institute of High Energy Physics, Theoretical Division (Russian Federation)
2013-09-15T23:59:59.000Z
In this paper we present our results of the investigation of multiquark equations in the Nambu-Jona-Lasinio model with chiral symmetry of SU(2) group in the mean-field expansion. To formulate the mean-field expansion we have used an iteration scheme of solution of the Schwinger-Dyson equations with the fermion bilocal source. We have considered the equations for Green functions of the Nambu-Jona-Lasinio model up to third step for this iteration scheme. To calculate the high-order corrections to the mean-field approximation, we propose the method of the Legendre transformation with respect to the bilocal source, which allows effectively to take into account the symmetry constraints related with the chiral Ward identity. We discuss also the problem of calculating the multiquark functions in the mean-field expansion for Nambu-Jona-Lasinio-type models with other types of the multifermion sources.
Analytical calculation of neutral transport and its effect on ions
Calvin, M.D.; Hazeltine, R.D.; Valanju, P.M.; Solano, E.R. (Texas Univ., Austin, TX (USA). Inst. for Fusion Studies Texas Univ., Austin, TX (USA). Fusion Research Center)
1991-06-01T23:59:59.000Z
We analytically calculate the neutral particle distribution and its effects on ion heat and momentum transport in three-dimensional plasmas with arbitrary temperature and density profiles. A general variational principle taking advantage of the simplicity of the charge-exchange (CX) operator is derived to solve self-consistently the neutral-plasma interaction problem. To facilitate an extremal solution, we use the short CX mean-free-path ({lambda}{sub x}) ordering. Further, a non-variational, analytical solution providing a full set of transport coefficient is derived by making the realistic assumption that the product of the CX cross section with relative velocity is constant. The effects of neutrals on plasma energy loss and rotation appear in simple, sensible forms. We find that neutral viscosity dominates ion viscosity everywhere, and in the edge region by a large factor. 13 refs.
What Learning Patterns are Effective for a Learner's Growth?
Mizoguchi, Riichiro
. In this paper we describe these three types of models and a mechanism to generate learning pattern by the learning theories. Concerning Task-augmented GM, we have eight types, and their validities are supportedWhat Learning Patterns are Effective for a Learner's Growth? An ontological support for designing
Effective Neuronal Learning with Ineffective Hebbian Learning Rules
Chechik, Gal
; Palm & Sommer, 1996) derived the learn- ing rule that maximizes the network memory capacity, and showed of papers (Palm & Sommer, 1988; Palm, 1992; Palm & Sommer, 1996), Palm and Sommer have further studied
Excited State Effects in Nucleon Matrix Element Calculations
Constantia Alexandrou, Martha Constantinou, Simon Dinter, Vincent Drach, Karl Jansen, Theodoros Leontiou, Dru B Renner
2011-12-01T23:59:59.000Z
We perform a high-statistics precision calculation of nucleon matrix elements using an open sink method allowing us to explore a wide range of sink-source time separations. In this way the influence of excited states of nucleon matrix elements can be studied. As particular examples we present results for the nucleon axial charge g{sub A} and for the first moment of the isovector unpolarized parton distribution x{sub u-d}. In addition, we report on preliminary results using the generalized eigenvalue method for nucleon matrix elements. All calculations are performed using N{sub f} = 2+1+1 maximally twisted mass Wilson fermions.
Delen, Erhan
2013-07-11T23:59:59.000Z
engaged with the content. Using an experimental design, this study investigates the effects of a newly designed online video-based interactive learning environment with embedded supports for self-regulation strategies on students’ learning behaviors...
Delen, Erhan
2013-07-11T23:59:59.000Z
engaged with the content. Using an experimental design, this study investigates the effects of a newly designed online video-based interactive learning environment with embedded supports for self-regulation strategies on students’ learning behaviors...
Rotella, Jay J.
F&WL 501 - Lab #2 Stochastic Exponential Growth 1. In Chapter 2, you learned of the formula for calculating the geometric mean based on an arithmetic mean and its variance. a. What is that formula? b. What is the name of the technique being used in this formula? c. Use that formula to generate values
Effective Preparation and Active Learning Strategies for Math&Stat TAs
Maryland, Baltimore County, University of
is active learning? 2 Why bother? 3 Types of active learning 4 Effective Preparation 5 Strategies for asking out your log sheet! J. Zweck (UMBC) Active Learning Strategies September 2006 4 / 12 #12;Types in an argument presented by TA. J. Zweck (UMBC) Active Learning Strategies September 2006 5 / 12 #12;Types
Analytic calculations of trial wave functions of the fractional quantum Hall effect on the sphere
Carmem Lucia de Souza Batista; Dingping Li
1996-07-24T23:59:59.000Z
We present a framework for the analytic calculations of the hierarchical wave functions and the composite fermion wave functions in the fractional quantum Hall effect on the sphere by using projective coordinates. Then we calculate the overlaps between these two wave functions at various fillings and small numbers of electrons. We find that the overlaps are all most equal to one. This gives a further evidence that two theories of the fractional quantum Hall effect, the hierarchical theory and the composite fermion theory, are physically equivalent.
Barbaras, Sean A. [United States Military Academy, West Point, New York 10996 (United States); Knight, Travis W. [University of South Carolina, Columbia, South Carolina 29208 (United States)
2012-07-01T23:59:59.000Z
Using Mixed Oxide (MOX) fuel in traditional Pressurized Water Reactor (PWR) assemblies has been researched at length and has shown to provide the benefit of transmutation and targets the amount and toxicity of high level waste needed to be managed. Advanced MOX concepts using enriched Uranium Dioxide (UO{sub 2}) are required for multiple recycling of plutonium. The use of MOX and ordinary UO{sub 2} fuel in the same assembly as well as unfueled rods and assembly edge effects contrasts with the unit cell computational assumption of a uniform infinite array of rods. While a deterministic method of calculating the Dancoff factor has traditionally been employed in fuel assembly analysis due to the lighter computational and modeling requirements, this research seeks to determine the validity of the uniform, infinite lattice assumption with respect to Dancoff factor and determine the magnitude of the impact of nonuniform lattice effects on fuel assembly criticality calculations as well as transuranic isotope production and transmutation. This research explored the pin-to-pin interaction in a non-uniform lattice of MOX fuel rods and UO{sub 2} fuel rods through the impact of the calculated Dancoff factors from the deterministic method used in SCALE versus the Monte Carlo method used in the code DANCOFF-MC. Using the Monte Carlo method takes into account the non-uniform lattice effects of having neighboring fuel rods with different cross-sectional spectra whereas the Dancoff factor calculated by SCALE assumes a uniform, infinite lattice of one fuel rod type. Differences in eigenvalue calculations as a function of burnup are present between the two methods of Dancoff factor calculation. The percent difference is greatest at low burnup and then becomes smaller throughout the cycle. Differences in the transmutation rate of transuranic isotopes in the MOX fuel are also present between the Dancoff factor calculation methods. The largest difference is in Pu-239, Pu-242, and Am-241 composition whereas U-238, Pu-242, and Pu-238 composition was not changed by taking into account the non-homogenous lattice effects. Heterogeneous lattice effects do change the calculated eigenvalue and transmutation rate in a non-uniform lattice of MOX fuel rods and UO{sub 2} fuel. However, the uncertainty in the ENDF data used by SCALE in these calculations is large enough that the infinite lattice assumption remains valid. (authors)
Hammes-Schiffer, Sharon
Multiconfigurational nuclear-electronic orbital approach: Incorporation of nuclear quantum effects 26 March 2002; accepted 30 May 2002 The nuclear-electronic orbital NEO method for the calculation of mixed nuclear-electronic wave functions is presented. Both electronic and nuclear molecular orbitals
Goodman, Sarina Renae
1995-01-01T23:59:59.000Z
This research examines the effects and interactions of an individual's learning style, the type of computer software, and the level of teacher involvement on students learning how to type on a computer keyboard. The research ...
Effect of tensile strain on the electronic structure of Ge: A first-principles calculation
Liu, Li [Key Laboratory for Microstructures and Institute of Materials Science, Shanghai University, Shanghai 200072 (China); State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050 (China); Zhang, Miao; Di, Zengfeng, E-mail: zfdi@mail.sim.ac.cn, E-mail: shijin.zhao@shu.edu.cn [State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050 (China); Hu, Lijuan; Zhao, Shi-Jin, E-mail: zfdi@mail.sim.ac.cn, E-mail: shijin.zhao@shu.edu.cn [Key Laboratory for Microstructures and Institute of Materials Science, Shanghai University, Shanghai 200072 (China)
2014-09-21T23:59:59.000Z
Taking the change of L-point conduction band valley degeneracy under strain into consideration, we investigate the effect of biaxially tensile strain (parallel to the (001), (110), and (111) planes) and uniaxially tensile strain (along the [001], [110], and [111] directions) on the electronic structure of Ge using density functional theory calculations. Our calculation shows that biaxial tension parallel to (001) is the most efficient way to transform Ge into a direct bandgap material among all tensile strains considered. [111]-tension is the best choice among all uniaxial approaches for an indirect- to direct-bandgap transition of Ge. The calculation results, which are further elaborated by bond-orbital approximation, provide a useful guidance on the optical applications of Ge through strain engineering.
M. A. Corrêa; F. Bohn; R. B. da Silva; R. L. Sommer
2014-11-04T23:59:59.000Z
The magnetoimpedance effect is a versatile tool to investigate ferromagnetic materials, revealing aspects on the fundamental physics associated to magnetization dynamics, broadband magnetic properties, important issues for current and emerging technological applications for magnetic sensors, as well as insights on ferromagnetic resonance effect at non-saturated magnetic states. Here, we perform a theoretical and experimental investigation of the magnetoimpedance effect for the thin film geometry in a wide frequency range. We calculate the longitudinal magnetoimpedance for single layered, multilayered or exchange biased systems from an approach that considers a magnetic permeability model for planar geometry and the appropriate magnetic free energy density for each structure. From numerical calculations and experimental results found in literature, we analyze the magnetoimpedance behavior, and discuss the main features and advantages of each structure. To test the robustness of the approach, we directly compare theoretical results with experimental magnetoimpedance measurements obtained in a wide range of frequencies for an exchange biased multilayered film. Thus, we provide experimental evidence to confirm the validity of the theoretical approach employed to describe the magnetoimpedance in ferromagnetic films, revealed by the good agreement between numerical calculations and experimental results.
Delayed Feedback Effects on Rule-Based and Information-Integration Category Learning
Maddox, W. Todd
, and whether different processes are involved in learning different types of category structuresDelayed Feedback Effects on Rule-Based and Information-Integration Category Learning W. Todd Maddox-integration category learning was investigated. Accuracy rates were examined to isolate global performance deficits
Sex-specific tissue weighting factors for effective dose equivalent calculations
Xu, X.G. [Rensselaer Polytechnic Inst., Troy, NY (United States); Reece, W.D. [Texas A& M Univ., College Station, TX (United States)
1996-01-01T23:59:59.000Z
The effective dose equivalent was defined in the International Commission on Radiological Protection Publication 26 in 1977 and later adopted by the U.S. Nuclear REgulatory Commission. To calculate organ doses and effective dose equivalent for external exposures using Monte Carlo simulations, sex-specific anthropomorphic phantoms and sex-specific weighting factors are always employed. This paper presents detailed mathematical derivation of a set of sex-specific tissue weighting factors and the conditions which the weighting factors must satisfy. Results of effective dose equivalent calculations using female and male phantoms exposed to monoenergetic photon beams of 0.08, 0.3, and 1.0 MeV are provided and compared with results published by other authors using different sex-specific weighting factors and phantoms. The results indicate that females always receive higher effective dose equivalent than males for the photon energies and geometries considered and that some published data may be wrong due to mistakes in deriving the sex-specific weighting factors. 17 refs., 2 figs., 2 tabs.
A NEW CALCULATION OF THE IONIZING BACKGROUND SPECTRUM AND THE EFFECTS OF He II REIONIZATION
Faucher-Giguere, Claude-Andre; Lidz, Adam; Zaldarriaga, Matias; Hernquist, Lars, E-mail: cgiguere@cfa.harvard.ed [Department of Astronomy, Harvard University, Cambridge, MA 02138 (United States)
2009-10-01T23:59:59.000Z
The ionizing background determines the ionization balance and the thermodynamics of the cosmic gas. It is therefore a fundamental ingredient to theoretical and empirical studies of both the intergalactic medium (IGM) and galaxy formation. We present here a new calculation of its spectrum that satisfies the empirical constraints we recently obtained by combining state-of-the-art luminosity functions and intergalactic opacity measurements. In our preferred model, star-forming galaxies and quasars each contribute substantially to the H I ionizing field at z < 3, with galaxies rapidly overtaking quasars at higher redshifts as quasars become rarer. In addition to our fiducial model, we explore the physical dependences of the calculated background and clarify how recombination emission contributes to the ionization rates. We find that recombinations do not simply boost the ionization rates by the number of re-emitted ionizing photons as many of these rapidly redshift below the ionization edges and have a distribution of energies. A simple analytic model that captures the main effects seen in our numerical radiative transfer calculations is given. Finally, we discuss the effects of He II reionization by quasars on both the spectrum of the ionizing background and on the thermal history of the IGM. In regions that have yet to be reionized, the spectrum is expected to be almost completely suppressed immediately above 54.4 eV, while a background of higher energy ({approx}>0.5 keV) photons permeates the entire universe owing to the frequency dependence of the photoionization cross section. We provide an analytical model of the heat input during He II reionization and its effects on the temperature-density relation.
K-effective of the world: and other concerns for Monte Carlo Eigenvalue calculations
Brown, Forrest B [Los Alamos National Laboratory
2010-01-01T23:59:59.000Z
Monte Carlo methods have been used to compute k{sub eff} and the fundamental model eigenfunction of critical systems since the 1950s. Despite the sophistication of today's Monte Carlo codes for representing realistic geometry and physics interactions, correct results can be obtained in criticality problems only if users pay attention to source convergence in the Monte Carlo iterations and to running a sufficient number of neutron histories to adequately sample all significant regions of the problem. Recommended best practices for criticality calculations are reviewed and applied to several practical problems for nuclear reactors and criticality safety, including the 'K-effective of the World' problem. Numerical results illustrate the concerns about convergence and bias. The general conclusion is that with today's high-performance computers, improved understanding of the theory, new tools for diagnosing convergence (e.g., Shannon entropy of the fission distribution), and clear practical guidance for performing calculations, practitioners will have a greater degree of confidence than ever of obtaining correct results for Monte Carlo criticality calculations.
On Improving the Effectiveness of Open Learning Environments
Conati, Cristina
specific student difficulties. ACE provides students with a highly-graphical, exploratory learning that support the exploratory behaviour of those students who would otherwise have trouble learning of tutor-controlled environments that monitor and structure the learning process through focused activities
Effects of Tasks and Glosses on L2 Incidental Vocabulary Learning: Meta-analyses
Huang, Shu-Fen
2012-10-19T23:59:59.000Z
This study investigated the effects of output stimulus tasks and glosses on L2 incidental vocabulary learning. Two meta-analytic studies were conducted. The first was intended to provide a systematic statistical synthesis of the effects of output...
Wu, Zhigang
Quantum Monte Carlo calculations of the energy-level alignment at hybrid interfaces: Role of many; published 29 May 2009 An approach is presented for obtaining a highly accurate description of the energy-level alignment at hybrid interfaces, using quantum Monte Carlo calculations to include many-body effects
Carlos Allende Prieto; David L. Lambert
1999-11-02T23:59:59.000Z
The Hipparcos mission has made it possible to constrain the positions of nearby field stars in the colour-magnitude diagram with very high accuracy. These positions can be compared with the predictions of stellar evolutionary calculations to provide information on the basic parameters of the stars: masses, radii, effective temperatures, ages, and chemical composition. The degeneracy between mass, age, and metallicity is not so large as to prevent a reliable estimate of masses, radii and effective temperatures, at least for stars of solar metallicity. The evolutionary models of Bertelli et al. (1994) predict those parameters finely, and furthermore, the applied transformation from the theoretical (log g-Teff) to the observational (Mv-B-V) plane is precise enough to derive radii with an uncertainty of ~ 6%, masses within ~ 8%, and Teffs within ~ 2% for a certain range of the stellar parameters. This is demonstrated by means of comparison with the measurements in eclipsing binaries and the InfraRed Flux Method. The application of the interpolation procedure in the theoretical isochrones to the stars within 100 pc from the Sun observed with Hipparcos provides estimates for 17,219 stars
Drover, Damion, Ryan
2011-12-01T23:59:59.000Z
One of the largest exports in the Southeast U.S. is forest products. Interest in biofuels using forest biomass has increased recently, leading to more research into better forest management BMPs. The USDA Forest Service, along with the Oak Ridge National Laboratory, University of Georgia and Oregon State University are researching the impacts of intensive forest management for biofuels on water quality and quantity at the Savannah River Site in South Carolina. Surface runoff of saturated areas, transporting excess nutrients and contaminants, is a potential water quality issue under investigation. Detailed maps of variable source areas and soil characteristics would therefore be helpful prior to treatment. The availability of remotely sensed and computed digital elevation models (DEMs) and spatial analysis tools make it easy to calculate terrain attributes. These terrain attributes can be used in models to predict saturated areas or other attributes in the landscape. With laser altimetry, an area can be flown to produce very high resolution data, and the resulting data can be resampled into any resolution of DEM desired. Additionally, there exist many maps that are in various resolutions of DEM, such as those acquired from the U.S. Geological Survey. Problems arise when using maps derived from different resolution DEMs. For example, saturated areas can be under or overestimated depending on the resolution used. The purpose of this study was to examine the effects of DEM resolution on the calculation of topographic wetness indices used to predict variable source areas of saturation, and to find the best resolutions to produce prediction maps of soil attributes like nitrogen, carbon, bulk density and soil texture for low-relief, humid-temperate forested hillslopes. Topographic wetness indices were calculated based on the derived terrain attributes, slope and specific catchment area, from five different DEM resolutions. The DEMs were resampled from LiDAR, which is a laser altimetry remote sensing method, obtained from the USDA Forest Service at Savannah River Site. The specific DEM resolutions were chosen because they are common grid cell sizes (10m, 30m, and 50m) used in mapping for management applications and in research. The finer resolutions (2m and 5m) were chosen for the purpose of determining how finer resolutions performed compared with coarser resolutions at predicting wetness and related soil attributes. The wetness indices were compared across DEMs and with each other in terms of quantile and distribution differences, then in terms of how well they each correlated with measured soil attributes. Spatial and non-spatial analyses were performed, and predictions using regression and geostatistics were examined for efficacy relative to each DEM resolution. Trends in the raw data and analysis results were also revealed.
The Effects of Using a Greedy Factor in Hexapod Gait Learning
Hickey, Timothy J.
The Effects of Using a Greedy Factor in Hexapod Gait Learning Gary B. Parker and William T. Tarimo of this study are tested on a Cyclic Genetic Algorithm (CGA) used for learning gaits for a hexapod servo in the desired optimal gaits. Keywords- Genetic Algorithm; Cyclic Control; Hexapod; Greedy Selection; Gait
Hep, J.; Konecna, A.; Krysl, V.; Smutny, V. [Calculation Dept., Skoda JS plc, Orlik 266, 31606 Plzen (Czech Republic)
2011-07-01T23:59:59.000Z
This paper describes the application of effective source in forward calculations and the adjoint method to the solution of fast neutron fluence and activation detector activities in the reactor pressure vessel (RPV) and RPV cavity of a VVER-440 reactor. Its objective is the demonstration of both methods on a practical task. The effective source method applies the Boltzmann transport operator to time integrated source data in order to obtain neutron fluence and detector activities. By weighting the source data by time dependent decay of the detector activity, the result of the calculation is the detector activity. Alternatively, if the weighting is uniform with respect to time, the result is the fluence. The approach works because of the inherent linearity of radiation transport in non-multiplying time-invariant media. Integrated in this way, the source data are referred to as the effective source. The effective source in the forward calculations method thereby enables the analyst to replace numerous intensive transport calculations with a single transport calculation in which the time dependence and magnitude of the source are correctly represented. In this work, the effective source method has been expanded slightly in the following way: neutron source data were performed with few group method calculation using the active core calculation code MOBY-DICK. The follow-up neutron transport calculation was performed using the neutron transport code TORT to perform multigroup calculations. For comparison, an alternative method of calculation has been used based upon adjoint functions of the Boltzmann transport equation. Calculation of the three-dimensional (3-D) adjoint function for each required computational outcome has been obtained using the deterministic code TORT and the cross section library BGL440. Adjoint functions appropriate to the required fast neutron flux density and neutron reaction rates have been calculated for several significant points within the RPV and RPV cavity of the VVER-440 reacto rand located axially at the position of maximum power and at the position of the weld. Both of these methods (the effective source and the adjoint function) are briefly described in the present paper. The paper also describes their application to the solution of fast neutron fluence and detectors activities for the VVER-440 reactor. (authors)
Effectiveness of Concept Maps in Learning from a Computer-Based Instructional Video Resource
Vural, Omer
2012-02-14T23:59:59.000Z
The purpose of this study was to investigate the effectiveness of two different concept mapping methods - learner-generated and expert-generated concept mapping - in computer-based video learning. The students’ attitudes toward the use...
Malfait, Nicole
Motor learning and its sensory effects: time course of perceptual change and its presence 2012 Mattar AA, Darainy M, Ostry DJ. Motor learning and its sensory effects: time course of perceptual motor and sensory systems. We showed recently that motor learning leads to changes in the sensed
Effects of kinesthetic and cutaneous stimulation during the learning
Siena, Università di
with movement disabilities [1]. A variety of assistive control strategies have been designed, including robots consists of applying a viscous curl field during the execution of point-to-point reaching movements, Member, IEEE Abstract--Haptic stimulation can help humans learn perceptual motor skills, but the precise
P. Navratil; B. R. Barrett
1996-09-20T23:59:59.000Z
Large-space no-core shell model calculations have been performed for A=3-6 nuclei, using a starting-energy-independent two-body effective interaction derived by application of the Lee-Suzuki similarity transformation. This transformation can be performed by direct calculation or by different iteration procedures, which are described. A possible way of reducing the auxiliary potential influence on the two-body effective interaction has also been introduced. The many-body effects have been partially taken into account by employing the recently introduced multi-valued effective interaction approach. Dependence of the He5 energy levels on the harmonic-oscillator frequency as well as on the size of the model space has been studied. The Reid 93 nucleon-nucleon potential has been used in the study, but results have also been obtained using the Nijmegen II potential for comparison.
Effect of neglecting resistance in calculations of short circuit faults on power systems
Mayo, Samuel Jonathan
1948-01-01T23:59:59.000Z
and Results of Calculations 10 A. System 1. Twin Overhead Circuits ~ ~ 10 1. General Description of System and Calculations of Impedances . . . . . 10 2. Example 1. Double Line to Ground Fault on Line, No Ground Wire . . . . . . . 19 3. Example 2. Single... Line to Ground Fault on Line, No Ground Wire . . . . . ~ ~ 25 4. Example 3. Double Line to Ground Fault on Line, One Copper Ground Wire 5. Example 4. Line to Line Fault at Bus. 6. Table I. Results of Calculat'ons of Faults on System 1 B, System 2...
Hamarneh, Ghassan
communication. In multiple sclerosis (MS), the CC can have discrete lesions (MS plaques) or generalized tissue callo- sum, multiple sclerosis, mid sagittal plane, area calculation. I. INTRODUCTION The CC and the MS in the nerve impulses. B. Multiple Sclerosis Multiple Sclerosis is an auto-immune disease of the brain
Vibrational Spectra of Water Solutions of Azoles from QM/MM Calculations: Effects of Solvation
Guidoni, Leonardo
the decomposition of the vibrational density of states of the gas phase and solution dynamics. The calculated shifts the structural and dynamical aspects of water solutions. X-ray as well as neutron diffraction are the main source and electronic structure of the molecule.1 We expect therefore that also its vibrational properties could
Effects of the difference in tube voltage of the CT scanner on dose calculation
Rhee, Dong Joo; Moon, Young Min; Kim, Jung Ki; Jeong, Dong Hyeok
2015-01-01T23:59:59.000Z
Computed Tomography (CT) measures the attenuation coefficient of an object and converts the value assigned to each voxel into a CT number. In radiation therapy, CT number, which is directly proportional to the linear attenuation coefficient, is required to be converted to electron density for radiation dose calculation for cancer treatment. However, if various tube voltages were applied to take the patient CT image without applying the specific CT number to electron density conversion curve, the accuracy of dose calculation would be unassured. In this study, changes in CT numbers for different materials due to change in tube voltage were demonstrated and the dose calculation errors in percentage depth dose (PDD) and a clinical case were analyzed. The maximum dose difference in PDD from TPS dose calculation and Monte Carlo simulation were 1.3 % and 1.1 % respectively when applying the same CT number to electron density conversion curve to the 80 kVp and 140 kVp images. In the clinical case, the different CT nu...
Starkov, A. S. [St. Petersburg National Research University of Information Technologies, Mechanics and Optics, Institute of Refrigeration and Biotechnology (Russian Federation); Starkov, I. A., E-mail: ferroelectrics@ya.ru [Brno University of Technology, SIX Research Centre (Czech Republic)
2014-11-15T23:59:59.000Z
It is proposed to use a generalized matrix averaging (GMA) method for calculating the parameters of an effective medium with physical properties equivalent to those of a set of thin multiferroic layers. This approach obviates the need to solve a complex system of magnetoelectroelasticity equations. The required effective characteristics of a system of multiferroic layers are obtained using only operations with matrices, which significantly simplifies calculations and allows multilayer systems to be described. The proposed approach is applicable to thin-layer systems, in which the total thickness is much less than the system length, radius of curvature, and wavelengths of waves that can propagate in the system (long-wave approximation). Using the GMA method, it is also possible to obtain the effective characteristics of a periodic structure with each period comprising a number of thin multiferroic layers.
Kazen, Hayley D.
2010-01-15T23:59:59.000Z
This study focused on the perceptions students have about the effectiveness of learning communities, a focus of the First-Year Success initiative at Texas A...
Venkatapathi, S., E-mail: saran@vt.edu; Dong, B., E-mail: bind89@vt.edu [Department of Mechanical Engineering, Virginia Tech, Blacksburg, Virginia 24061 (United States); Hin, C., E-mail: celhin@vt.edu [Department of Mechanical Engineering, Virginia Tech, Blacksburg, Virginia 24061 (United States); Department of Materials Science and Engineering, Virginia Tech, Blacksburg, Virginia 24061 (United States)
2014-07-07T23:59:59.000Z
We determined the temperature effects on the electronic properties of lead telluride (PbTe) such as the energy bandgap and the effective masses of charge carriers by incorporating the structural changes of the material with temperature using ab-initio density functional theory (DFT) calculations. Though the first-principles DFT calculations are done at absolute zero temperatures, by incorporating the lattice thermal expansion and the distortion of Pb{sup 2+} ions from the equilibrium positions, we could determine the stable structural configuration of the PbTe system at different temperatures.
Meirovitch, Hagai
New Method for Calculating the Absolute Free Energy of Binding: The Effect of a Mobile Loop energy and entropy. HSMD is extended here for the first time for calculating the absolute free energy change to the total free energy of binding is calculated here for the first time. Our result, A0 ) -24
A Calculation on the Self-field of a Point Charge and the Unruh Effect
T. Hirayama; T. Hara
2000-07-24T23:59:59.000Z
Within the context of quantum field theory in curved spacetimes, Hacyan and Sarmiento defined the vacuum stress-energy tensor with respect to the accelerated observer. They calculated it for uniform acceleration and circular motion, and derived that the rotating observer perceives a flux. Mane related the flux to synchrotron radiation. In order to investigate the relation between the vacuum stress and bremsstrahlung, we estimate the stress-energy tensor of the electromagnetic field generated by a point charge, at the position of the charge. We use the retarded field as a self-field of the point charge. Therefore the tensor diverges if we evaluate it as it is. Hence we remove the divergent contributions by using the expansion of the tensor in powers of the distance from the point charge. Finally, we take an average for the angular dependence of the expansion. We calculate it for the case of uniform acceleration and circular motion, and it is found that the order of the vacuum stress multiplied by $\\pi\\alpha$ ($\\alpha=e^2/\\hbar c$ is the fine structure constant) is equal to that of the self-stress. In the Appendix, we give another trial approach with a similar result.
MacCracken, M.C.; Walton, J.J.
1984-12-01T23:59:59.000Z
Several theoretical studies with numerical models have shown that substantial land-surface cooling can occur if very large amounts (approx. 100 x 10/sup 12/ = 100 Tg) of highly absorbing sooty-particles are injected high into the troposphere and spread instantaneously around the hemisphere (Turco et al., 1983; Covey et al. 1984; MacCracken, 1983). A preliminary step beyond these initial calculations has been made by interactively coupling the two-layer, three-dimensional Oregon State University general circulation model (GCM) to the three-dimensional GRANTOUR trace species model developed at the Lawrence Livermore National Laboratory. The GCM simulation includes treatment of tropospheric dynamics and thermodynamics and the effect of soot on solar radiation. The GRANTOUR simulation includes treatment of particle transport and scavenging by precipitation, although no satisfactory verification of the scavenging algorithm has yet been possible. We have considered the climatic effects of 150 Tg (i.e., the 100 Mt urban war scenario from Turco et al., 1983) and of 15 Tg of smoke from urban fires over North America and Eurasia. Starting with a perpetual July atmospheric situation, calculation of the climatic effects as 150 Tg of smoke are spread slowly by the winds, rather than instantaneously dispersed as in previous calculations, leads to some regions of greater cooling under the denser parts of the smoke plumes and some regions of less severe cooling where smoke arrival is delayed. As for the previous calculations, mid-latitude decreases of land surface air temperature for the 150 Tg injection are greater than 15/sup 0/C after a few weeks. For a 15 Tg injection, however, cooling of more than several degrees centigrade only occurs in limited regions under the dense smoke plumes present in the first few weeks after the injection. 10 references, 9 figures.
Hirschi, Jennifer Sue
2009-05-15T23:59:59.000Z
A variety of biological and organic reaction mechanisms are studied using powerful tools from experimental and theoretical chemistry. These tools include the precise measurement of kinetic isotope effects (KIEs) and the ...
Kleespies, Henry Sattoli
1986-01-01T23:59:59.000Z
code was developed using the transfer matrix method to investigate the effects of cross-coupled sti ffness, cross-coupled damping, and torque on synchronous response of rotating machinery. Several models showing the effects of cross.... Phase plot of rotor with ZX damping. Figure 3 1. Response plot for rotor with forward driving cross-coupled stiffness. Figure 32. Response plot with cross-coupled 53 55 57 sti ffness negating lateral damping. Figure 33. Response plot with cross...
Viloria Ochoa, Marilyn
2006-10-30T23:59:59.000Z
density at total depth, which is important in computing static pressure.8 2.1.3 Hydraulics in Deepwater Zamora and Power2 evaluated the inability of API equations from RP 13D to match field data in critical drilling, because....5?Effect of pressure and temperature on yield point. (from Bogot? Technical Center-Colombia?). In the deepwater environment, water temperatures easily reach 40?F (5?C) and below. This low-temperature environment effectively cools down the drilling...
A technique for calculating the effective thermal resistance of steel stud walls for code compliance
Brown, W.C.; Swinton, M.C.; Haysom, J.C. [National Research Council, Ottawa, Ontario (Canada)
1998-12-31T23:59:59.000Z
Canada`s Model National Energy Codes for Houses and for Buildings contain prescriptive requirements in the form of minimum thermal characteristics of envelope assemblies, including steel stud walls. To assist in the uniform enforcement of these requirements, it was necessary for the codes to prescribe acceptable methods of calculating the thermal resistance of steel and assemblies. The ASHRAE Handbook--Fundamentals proposes a simple method for predicting the thermal performance of stud walls, which is based on a weighted average of the values predicted by isothermal planes and parallel path calculation methods. The thermal resistance of 2440 mm x 2440 mm (8 ft x 8 ft) wall specimens, with 92 mm (3-5/8 in.) steel studs, was measured in a series of guarded hot box tests. Two stud gauges were evaluated, as well as two stud spacings, with one wood-based and three insulating sheathings. The measurements demonstrated that a weighting of 2:1 (isothermal planes:parallel path) provided an/ accurate prediction of the thermal resistance of walls with steel studs at 406 mm (16 in.) o.c., but that a 1:1 weighting best predicted the thermal resistance of walls with steel studs at 610 mm (24 in.) o.c. These results applied to walls with wood-based sheathing directly applied to the studs, whether or not the walls had insulating sheathing. Finally, the measurements demonstrated that an intermediate weighting of 3:2 best predicted the thermal resistance of walls with insulating sheathing installed directly onto the studs, i.e., without intermediate structural sheathing.
Class Noise Handling for Effective Cost-Sensitive Learning by Cost-Guided
Wu, Xindong
on expensive classes, which makes it attractive in dealing with data sets with a large cost-ratio. Experimental the misclassification cost of a CS classifier in noisy environments. Index Terms--Data mining, classification, cost for effective CS learning from noisy data sources. 2 COST-GUIDED ITERATIVE CLASSIFICATION FILTER Among all
Rudin, Cynthia
Treatment Effect of Repairs to an Electrical Grid Leveraging a Machine Learned Model of Structure is the utility company that provides electrical power to New York City. As of late 2004, the Public Service Commission of the State of New York requires Con Edison to inspect all electrical structures in the power
Motivating effective use of online components by students in flipped/blended learning formats
Collins, Gary S.
Motivating effective use of online components by students in flipped/blended learning formats Tom the online components of a course, particularly in use with flipped/blended course formats. What I present's my take on flipped/blended formats exclusively: The Challenge In my experience, the most challenging
Feng, Qian
2011-10-21T23:59:59.000Z
to the effect of thin cirrus are comparable to the assumed optical depth of thin cirrus clouds. With the spheroidal and spherical particle shape assumptions for mineral dust aerosols, the effect of particle shapes on dust radiative forcing calculations...
Highly accurate calculation of the resonances in the Stark effect in hydrogen
Francisco M Fernández; Javier Garcia
2015-06-18T23:59:59.000Z
We obtained accurate resonances for the Stark effect in hydrogen by means of three independent methods. Two of them are based on complex rotation of the coordinates and diagonalization of the Hamiltonian matrix (CRLM and CRCH). The other one is based on the Riccati equations for the logarithmic derivatives of factors of the wavefunction (RPM). The latter approach enabled us to obtain the most accurate results and extremely sharp resonances.
A two equation method for calculating downhole dynamometer cards with a study of damping effects
Bastian, Michael John
1989-01-01T23:59:59.000Z
production. l Because of the wide application of sucker rod pumping as a means for artificially lifting wells, there is potential to significantly effect income and reserves by proper design and maintenance of sucker rod systems. The purpose... was technically successful there existed problems. The cost of installing and removing the tool limited its use solely to research. There also existed a problem with accurately obtaining positions at the pump. W. E. Synder6 was the first to present a...
The effect of the number of wavebands used in spectral radiation heat transfer calculations
Chang, S. L.; Golchert, B.; Petrick, M.
2000-05-09T23:59:59.000Z
A spectral radiation heat transfer model that conserves emitted and absorbed energy has been developed and used to model the combustion space of an industrial glass furnace. This comprehensive radiation heat transfer model coupled with a computational fluid dynamics (CFD) code was used to investigate the effect of spectral dependencies on the computed results. The results of this work clearly indicate the need for a spectral approach as opposed to a gray body approach since the gray body approach (one waveband) severely underestimates the energy emitted via radiation.
Ballistic electron transport calculation of strained germanium-tin fin field-effect transistors
Lan, H.-S. [Graduate Institute of Electronics Engineering and Department of Electrical Engineering, National Taiwan University, Taipei, Taiwan (China); Liu, C. W., E-mail: chee@cc.ee.ntu.edu.tw [Graduate Institute of Electronics Engineering and Department of Electrical Engineering, National Taiwan University, Taipei, Taiwan (China); Graduate Institute of Photonics and Optoelectronics, National Taiwan University, Taipei, Taiwan (China)
2014-05-12T23:59:59.000Z
The dependence of ballistic electron current on Sn content, sidewall orientations, fin width, and uniaxial stress is theoretically studied for the GeSn fin field-effect transistors. Alloying Sn increases the direct ? valley occupancy and enhances the injection velocity at virtual source node. (112{sup ¯}) sidewall gives the highest current enhancement due to the rapidly increasing ? valley occupancy. The non-parabolicity of the ? valley affects the occupancy significantly. However, uniaxial tensile stress and the shrinkage of fin width reduce the ? valley occupancy, and the currents are enhanced by increasing occupancy of specific indirect L valleys with high injection velocity.
Choi, Jin Nam
2010-01-01T23:59:59.000Z
increasing the various types of learning activities engagedstimulating various types of learning activities among itsthat among three types of learning practices, interpersonal
EFFECT e-learning courses | Open Energy Information
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on DeliciousPlasmaP a g eWorks -09-0018-CX Jump to:Dasa Jump to:Ditec AutomationDr JanEA HomeEBRD-TheEDeMaEEStorEFFECT
McDermott, Kathleen
Test-Enhanced Learning in a Middle School Science Classroom: The Effects of Quiz Frequency Typically, teachers use tests to evaluate students' knowledge acquisition. In a novel experimental study, we examined whether low-stakes testing (quizzing) can be used to foster students' learning of course content
The effect of locus of control and learned helplessness on control of heart rate using biofeedback
Logsdon, Steven Alan
1976-01-01T23:59:59.000Z
func- tions through biofeedback training (Ray, 1971; Wagner, et al. , 1974) . Ray (1971) found that internals were able to increase their heart rates significantly better than externals and that externals were able to decrease their heart rates... for internals to increase heart rate than to decrease it, and it is easier for externals to decrease heart rate than to increase it. Roth s Kubal (in press) have shown that learned helplessness effects can be facilitated by an increased number of exposures...
Stacey, W. M.
2001-03-01T23:59:59.000Z
Several series of model problem calculations have been performed to investigate the predicted effect of pumping, divertor configuration and fueling on the maximum achievable density in diverted tokamaks. Density limitations due to thermal instabilities (confinement degradation and multifaceted axisymmetric radiation from the edge) and to divertor choking are considered. For gas fueling the maximum achievable density is relatively insensitive to pumping (on or off), to the divertor configuration (open or closed), or to the location of the gas injection, although the gas fueling rate required to achieve this maximum achievable density is quite sensitive to these choices. Thermal instabilities are predicted to limit the density at lower values than divertor choking. Higher-density limits are predicted for pellet injection than for gas fueling.
Major, L.; Kyriacou, T.; Brereton, P.
2014-09-30T23:59:59.000Z
This work investigates the effectiveness of simulated robots as tools to support the learning of programming. After the completion of a Systematic Review and exploratory research a multi-case case study was undertaken. A simulator, named Kebot...
Kwon, So Young
2007-09-17T23:59:59.000Z
Using a quasi-experimental design, the researcher investigated the comparative effects of individually-generated and collaboratively-generated computer-based concept mapping on middle school science concept learning. Qualitative data were analyzed...
Nam, Chang Woo
2010-01-14T23:59:59.000Z
The purpose of this study was to investigate the relative effectiveness of positive interdependence and group processing on student achievement, interaction, and attitude in online cooperative learning. All of the participants, ...
Wigeland, R.A.
1986-01-01T23:59:59.000Z
The present emphasis on inherent safety and inherently safe designs for liquid-metal reactors has resulted in a need to represent the various reactivity feedback mechanisms as accurately as possible. In particular, the reactivity feedback from radial core expansion has been found to provide the dominant negative feedback contribution in postulated anticipated transient without scram (ATWS) events. Review of the existing modeling in the SASSYS/SAS4A computer code system revealed that while the modeling may be adequate for the early phases of various unprotected transients, the accuracy would be less than desirable for the extended transients which typically occur for inherently safe designs. The existing model for calculating the reactivity feedback from radial core expansion uses a feedback from radial core expansion uses a feedback coefficient in conjunction with changes in the temperatures of the grid support plate and the above-core load pad. The accuracy of this approach is determined partly by the conditions used in deriving the feedback coefficient, and their relevance to the transient being investigated. Accuracy is also affected by the need to include effects other than those that could be directly related to changes in the grid plate and above-core load pad temperatures, such as subassembly bowing and the potential for clearances to occur between subassemblies in the above-core load pad region. As a result, a detailed model was developed in an attempt to account for these and other effects in a more mechanistic form.
Goolsby, Tessa Maring
2011-02-22T23:59:59.000Z
This study examined how teachers' perceptions and attitudes and students' perceptions impacted the learning outcomes students received from their participation in service-learning. Service-learning is a form of experiential ...
Effects of Ethanol on Instrumental Learning And Plasticity Within The Spinal Cord
Callegari, Keri
2013-02-04T23:59:59.000Z
of learning known as instrumental learning. Rats that receive shock independent of leg position fail to learn and later exhibit a learning deficit when tested with controllable shock. Ethanol acts as a benzodiazepine and works on the central nervous system...=.025. This indicates that learning was disrupted by ethanol treatment in a dose-dependent manner. Experiment 2 Capsaicin treatment enhanced mechanical reactivity in the saline-treated controls (Figure 4). Ethanol produced a hyporeactivity...
Goolsby, Tessa Maring
2011-02-22T23:59:59.000Z
concepts distinguishes service-learning from other types of experiential learning (Jacoby et al. 1996). Through the combination of these components and concepts, service-learning endeavors to enhance civic education, increase academic skills, develop... as having two main types of learning outcomes: civic and academic (Parker-Gwin and Mabry 1998). However, learning outcomes often span beyond citizenship and academics to include things such as personal and interpersonal development (e.g. leadership...
Giovanni Puddu
2011-04-07T23:59:59.000Z
We perform calculations for the binding energies and low-lying levels of ${}^{10,11,12,13,14,15,16,17,18,19,20,21,22}C$ nuclei starting from the chiral $N3LO$ nucleon-nucleon potential within the framework of the Hybrid Multideterminant scheme. The calculations are restricted to 4 major harmonic oscillator shells, via the Lee-Suzuki renormalization scheme. The results are compared with the experimental data.
Dealers, insiders and bandits : learning and its effects on market outcomes
Das, Sanmay, 1979-
2006-01-01T23:59:59.000Z
This thesis seeks to contribute to the understanding of markets populated by boundedly rational agents who learn from experience. Bounded rationality and learning have both been the focus of much research in computer ...
Dealers, Insiders and Bandits: Learning and its Effects on Market Outcomes
Das, Sanmay
2006-07-12T23:59:59.000Z
This thesis seeks to contribute to the understanding of markets populated by boundedly rational agents who learn from experience. Bounded rationality and learning have both been the focus of much research in computer ...
Effect of intranasal manganese administration on neurotransmission and spatial learning in rats
Blecharz-Klin, Kamilla; Piechal, Agnieszka; Joniec-Maciejak, Ilona; Pyrzanowska, Justyna; Widy-Tyszkiewicz, Ewa, E-mail: etyszkiewicz@wum.edu.pl
2012-11-15T23:59:59.000Z
The effect of intranasal manganese chloride (MnCl{sub 2}·4H{sub 2}O) exposure on spatial learning, memory and motor activity was estimated in Morris water maze task in adult rats. Three-month-old male Wistar rats received for 2 weeks MnCl{sub 2}·4H{sub 2}O at two doses the following: 0.2 mg/kg b.w. (Mn0.2) or 0.8 mg/kg b.w. (Mn0.8) per day. Control (Con) and manganese-exposed groups were observed for behavioral performance and learning in water maze. ANOVA for repeated measurements did not show any significant differences in acquisition in the water maze between the groups. However, the results of the probe trial on day 5, exhibited spatial memory deficits following manganese treatment. After completion of the behavioral experiment, the regional brain concentrations of neurotransmitters and their metabolites were determined via HPLC in selected brain regions, i.e. prefrontal cortex, hippocampus and striatum. ANOVA demonstrated significant differences in the content of monoamines and metabolites between the treatment groups compared to the controls. Negative correlations between platform crossings on the previous platform position in Southeast (SE) quadrant during the probe trial and neurotransmitter turnover suggest that impairment of spatial memory and cognitive performance after manganese (Mn) treatment is associated with modulation of the serotonergic, noradrenergic and dopaminergic neurotransmission in the brain. These findings show that intranasally applied Mn can impair spatial memory with significant changes in the tissue level and metabolism of monoamines in several brain regions. -- Highlights: ? Intranasal exposure to manganese in rats impairs spatial memory in the water maze. ? Regional changes in levels of neurotransmitters in the brain have been identified. ? Cognitive disorder correlates with modulation of 5-HT, NA and DA neurotransmission.
Deo, Chaitanya; Adnersson, Davis; Battaile, Corbett; uberuaga, Blas
2012-10-30T23:59:59.000Z
The team will examine how the incorporation of actinide species important for mixed oxide (MOX) and other advanced fuel designs impacts thermodynamic quantities of the host UO{sub 2} nuclear fuel and how Pu, Np, Cm and Am influence oxygen mobility. In many cases, the experimental data is either insufficient or missing. For example, in the case of pure NpO2, there is essentially no experimental data on the hyperstoichiometric form it is not even known if hyperstoichiometry NpO{sub 2{+-}x} is stable. The team will employ atomistic modeling tools to calculate these quantities
Cheng, Lan, E-mail: chenglanster@gmail.com [Institute for Theoretical Chemistry, Department of Chemistry and Biochemistry, The University of Texas at Austin, Austin, Texas 78712 (United States)] [Institute for Theoretical Chemistry, Department of Chemistry and Biochemistry, The University of Texas at Austin, Austin, Texas 78712 (United States); Stopkowicz, Stella, E-mail: stella.stopkowicz@kjemi.uio.no [Centre for Theoretical and Computational Chemistry, Department of Chemistry, University of Oslo, N-0315 Oslo (Norway)] [Centre for Theoretical and Computational Chemistry, Department of Chemistry, University of Oslo, N-0315 Oslo (Norway); Gauss, Jürgen, E-mail: gauss@uni-mainz.de [Institut für Physikalische Chemie, Universität Mainz, D-55099 Mainz (Germany)] [Institut für Physikalische Chemie, Universität Mainz, D-55099 Mainz (Germany)
2013-12-07T23:59:59.000Z
A perturbative approach to compute second-order spin-orbit (SO) corrections to a spin-free Dirac-Coulomb Hartree-Fock (SFDC-HF) calculation is suggested. The proposed scheme treats the difference between the DC and SFDC Hamiltonian as perturbation and exploits analytic second-derivative techniques. In addition, a cost-effective scheme for incorporating relativistic effects in high-accuracy calculations is suggested consisting of a SFDC coupled-cluster treatment augmented by perturbative SO corrections obtained at the HF level. Benchmark calculations for the hydrogen halides HX, X = F-At as well as the coinage-metal fluorides CuF, AgF, and AuF demonstrate the accuracy of the proposed perturbative treatment of SO effects on energies and electrical properties in comparison with the more rigorous full DC treatment. Furthermore, we present, as an application of our scheme, results for the electrical properties of AuF and XeAuF.
Avtaeva, S. V.; Kulumbaev, E. B. [Kyrgyz-Russian Slavic University (Kyrgyzstan)
2008-06-15T23:59:59.000Z
The dynamics of a repetitive barrier discharge in xenon at a pressure of 400 Torr is simulated using a one-dimensional drift-diffusion model. The thicknesses of identical barriers with a dielectric constant of 4 are 2 mm, and the gap length is 4 mm. The discharge is fed with an 8-kV ac voltage at a frequency of 25 or 50 kHz. The development of the ionization wave and the breakdown and afterglow phases of a barrier discharge are analyzed using two different kinetic schemes of elementary processes in a xenon plasma. It is shown that the calculated waveforms of the discharge voltage and current, the instant of breakdown, and the number of breakdowns per voltage half-period depend substantially on the properties of the kinetic scheme of plasmachemical processes.
Pérez, E A Coello
2015-01-01T23:59:59.000Z
We present a model-independent approach to electric quadrupole transitions of deformed nuclei. Based on an effective theory for axially symmetric systems, the leading interactions with electromagnetic fields enter as minimal couplings to gauge potentials, while subleading corrections employ gauge-invariant non-minimal couplings. This approach yields transition operators that are consistent with the Hamiltonian, and the power counting of the effective theory provides us with theoretical uncertainty estimates. We successfully test the effective theory in homonuclear molecules that exhibit a large separation of scales. For ground-state band transitions of rotational nuclei, the effective theory describes data well within theoretical uncertainties at leading order. In order to probe the theory at subleading order, data with higher precision would be valuable. For transitional nuclei, next-to-leading order calculations and the high-precision data are consistent within the theoretical uncertainty estimates. We also...
Paris-Sud XI, Université de
1 Hydrogen Insertion Effects on the Electronic Structure of Equiatomic MgNi Traced by ab initio-xxx / Received October 18, 2012. Doi: 10.5560/ ZNB.2012-xxx For equiatomic MgNi which can be hydrogenated up to the composition MgNiH1.6 at an absorption/desorption temperature of 200 °C, the effects of hydrogen are approached
Slayzak, S.J.; Ryan, J.P.
1998-04-01T23:59:59.000Z
As part of the US Department of Energy`s Advanced Desiccant Technology Program, the National Renewable Energy Laboratory (NREL) is characterizing the state-of-the-art in desiccant dehumidifiers, the key component of desiccant cooling systems. The experimental data will provide industry and end users with independent performance evaluation and help researchers assess the energy savings potential of the technology. Accurate determination of humidity ratio is critical to this work and an understanding of the capabilities of the available instrumentation is central to its proper application. This paper compares the minimum theoretical random error in humidity ratio calculation for three common measurement methods to give a sense of the relative maximum accuracy possible for each method assuming systematic errors can be made negligible. A series of experiments conducted also illustrate the capabilities of relative humidity sensors as compared to dewpoint sensors in measuring the grain depression of desiccant dehumidifiers. These tests support the results of the uncertainty analysis. At generally available instrument accuracies, uncertainty in calculated humidity ratio for dewpoint sensors is determined to be constant at approximately 2%. Wet-bulb sensors range between 2% and 6% above 10 g/kg (4%--15% below), and relative humidity sensors vary between 4% above 90% rh and 15% at 20% rh. Below 20% rh, uncertainty for rh sensors increases dramatically. Highest currently attainable accuracies bring dewpoint instruments down to 1% uncertainty, wet bulb to a range of 1%--3% above 10 g/kg (1.5%--8% below), and rh sensors between 1% and 5%.
Kaber, David B.
ABSTRACT ZHU, BIWEN. Assessing the Effects of Feedback Type and Modality on Motor Skill Learning of Feedback Type and Modality on Motor Skill Learning and Human Motivation by Biwen Zhu A dissertation and Human Motivation. (Under the direction of Dr. David B. Kaber). Two types of feedback, including
Paris-Sud XI, Université de
-Est, Laboratoire Navier (ENPC-IFSTTAR-CNRS) 77455 Marne la Vallée, France 2 BRGM, Risks Division, F-45060 Orléans, geological CO2 storage, geothermal energy, etc. However, determining effective permeability for fractured reservoirs for a long time [1-4]. DFN is introduced in several commercial softwares as UDEC (Itasca) [5
The effect of service-learning in developing leadership life skills
Stafford, Jill Renee
2001-01-01T23:59:59.000Z
, and service and reflection. A written questionnaire was used to assess youths' perceived leadership life skills upon completion of the service-learning model. The major findings of the study were as follows: 1) In general, participants believed...
Palancar, Gustavo G.; Lefer, Barry; Hall, Samual R.; Shaw, William J.; Corr, Chelsea A.; Herndon, Scott C.; Slusser, J. R.; Madronich, Sasha
2013-01-24T23:59:59.000Z
Ultraviolet (UV) actinic ?uxes (AF) measured with three Scanning Actinic Flux Spectroradiometers (SAFS) are compared with the Tropospheric Ultraviolet-Visible (TUV) model v.5 in order to assess the effects of aerosols and NO2 concentrations on the radiation. Measurements were made during the MILAGRO campaign near Mexico City in March 2006, at a ground-based station near Mexico City (the T1 supersite) and from the NSF/NCAR C-130 aircraft. At the surface, measurements are typically smaller by up to 25 % in the morning, 10% at noon, and 40% in the afternoon, than actinic flux modeled for clean, cloud-free conditions. When measurements of PBL height, NO2 concentration and aerosols optical properties are included in the model, the agreement improves to within ±10% in the morning and afternoon, and ±3% at noon. Based on daily averages, aerosols account for 68%, NO2 for 25%, and residual uncertainties for 7% of these AF reductions observed at the surface. Several overpasses from the C-130 aircraft provided the opportunity to examine the actinic flux perturbations aloft, and also show better agreement with the model when aerosol and NO2 effects are included above and below the flight altitude. TUV model simulations show that the vertical structure of the actinic flux is sensitive to the choice of the aerosol single scattering albedo (SSA) at UV wavelengths. Typically, aerosols caused enhanced AF above the PBL and reduced AF near the surface. However, for highly scattering aerosols (SSA > 0.95), enhancements can penetrate well into the PBL, while for strongly absorbing aerosols (SSA<0.7) reductions in AF are computed in the free troposphere as well as in the PBL. Additional measurements of the SSA at these wavelengths are needed to better constrain the effect of aerosols on the vertical structure of the actinic flux.
Parry, G. [Laboratoire de Metallurgie Physique, UMR 6630, du CNRS, Universite de Poitiers, BP 30179, 86962 Futuroscope Cedex, (France)]. E-mail: guillaume.parry@etu.univ-poitiers.fr; Colin, J. [Laboratoire de Metallurgie Physique, UMR 6630, du CNRS, Universite de Poitiers, BP 30179, 86962 Futuroscope Cedex (France); Coupeau, C. [Laboratoire de Metallurgie Physique, UMR 6630, du CNRS, Universite de Poitiers, BP 30179, 86962 Futuroscope Cedex (France); Foucher, F. [Laboratoire de Metallurgie Physique, UMR 6630, du CNRS, Universite de Poitiers, BP 30179, 86962 Futuroscope Cedex (France); Cimetiere, A. [Laboratoire de Metallurgie Physique, UMR 6630, du CNRS, Universite de Poitiers, BP 30179, 86962 Futuroscope Cedex (France); Grilhe, J. [Laboratoire de Metallurgie Physique, UMR 6630, du CNRS, Universite de Poitiers, BP 30179, 86962 Futuroscope Cedex (France)
2005-01-10T23:59:59.000Z
The post-critical regime of straight-sided wrinkles on compliant substrates of polycarbonate has been observed by atomic force microscope and investigated by means of finite element simulations. The effect of coupling between the film and its substrate has revealed a global buckling phenomenon, characterized by critical loads lower than those found in the case of a rigid substrate. Characteristic shapes of the buckled structure have been also found to spread over a region wider than the delaminated zone itself. A law relating the film deflexion to the stress has finally been established for any film/substrate system.
E. A. Coello Pérez; T. Papenbrock
2015-07-16T23:59:59.000Z
We present a model-independent approach to electric quadrupole transitions of deformed nuclei. Based on an effective theory for axially symmetric systems, the leading interactions with electromagnetic fields enter as minimal couplings to gauge potentials, while subleading corrections employ gauge-invariant non-minimal couplings. This approach yields transition operators that are consistent with the Hamiltonian, and the power counting of the effective theory provides us with theoretical uncertainty estimates. We successfully test the effective theory in homonuclear molecules that exhibit a large separation of scales. For ground-state band transitions of rotational nuclei, the effective theory describes data well within theoretical uncertainties at leading order. In order to probe the theory at subleading order, data with higher precision would be valuable. For transitional nuclei, next-to-leading order calculations and the high-precision data are consistent within the theoretical uncertainty estimates. We also study the faint inter-band transitions within the effective theory and focus on the $E2$ transitions from the $0^+_2$ band (the "$\\beta$ band") to the ground-state band. Here, the predictions from the effective theory are consistent with data for several nuclei, thereby proposing a solution to a long-standing challenge.
E. A. Coello Pérez; T. Papenbrock
2015-02-16T23:59:59.000Z
We present a model-independent approach to electric quadrupole transitions of deformed nuclei. Based on an effective theory for axially symmetric systems, the leading interactions with electromagnetic fields enter as minimal couplings to gauge potentials, while subleading corrections employ gauge-invariant non-minimal couplings. This approach yields transition operators that are consistent with the Hamiltonian, and the power counting of the effective theory provides us with theoretical uncertainty estimates. We successfully test the effective theory in homonuclear molecules that exhibit a large separation of scales. For ground-state band transitions of rotational nuclei, the effective theory describes data well within theoretical uncertainties at leading order. In order to probe the theory at subleading order, data with higher precision would be valuable. For transitional nuclei, next-to-leading order calculations and the high-precision data are consistent within the theoretical uncertainty estimates. We also study the faint inter-band transitions within the effective theory and focus on the $E2$ transitions from the $0^+_2$ band (the $\\beta$ band) to the ground-state band. Here, the predictions from the effective theory are consistent with data for several nuclei, thereby proposing a solution to a long-standing challenge.
Rose, Michael R.
in focusing students' attention on learning activities within grade, from grade Insights on Curriculum, Instruction, and Early Literacy Learning: Student focused on children's learning in the classroom from preschool through third
Pastore, S. [University of South Carolina; Wiringa, Robert B. [ANL; Pieper, Steven C. [ANL; Schiavilla, Rocco [Old Dominion U., JLAB
2014-08-01T23:59:59.000Z
We report quantum Monte Carlo calculations of electromagnetic transitions in $^8$Be. The realistic Argonne $v_{18}$ two-nucleon and Illinois-7 three-nucleon potentials are used to generate the ground state and nine excited states, with energies that are in excellent agreement with experiment. A dozen $M1$ and eight $E2$ transition matrix elements between these states are then evaluated. The $E2$ matrix elements are computed only in impulse approximation, with those transitions from broad resonant states requiring special treatment. The $M1$ matrix elements include two-body meson-exchange currents derived from chiral effective field theory, which typically contribute 20--30\\% of the total expectation value. Many of the transitions are between isospin-mixed states; the calculations are performed for isospin-pure states and then combined with the empirical mixing coefficients to compare to experiment. In general, we find that transitions between states that have the same dominant spatial symmetry are in decent agreement with experiment, but those transitions between different spatial symmetries are often significantly underpredicted.
Effects of Ocean Acidification on Learning in Coral Reef Maud C. O. Ferrari1
Wisenden, Brian D.
: Ferrari MCO, Manassa RP, Dixson DL, Munday PL, McCormick MI, et al. (2012) Effects of Ocean Acidification
Feedback controller parameterizations for reinforcement learning
Roberts, John William
Reinforcement Learning offers a very general framework for learning controllers, but its effectiveness is closely tied to the controller parameterization used. Especially when learning feedback controllers for weakly stable ...
Goodman, Sarina Renae
1995-01-01T23:59:59.000Z
3. 5 3. 2 4. 0 4. 0 3. 6 2. 9 3. 5 3. 5 3. 6 4 4 LS, p=0. 0494 4 1 4, 8 3. 8 4. 7 4. 4 4. 3 4. 8 3. 5 4. 6 16 17 21 22 25 26 27 29 34 35 36 4. 2 4. 3 4. 0 3. 5 4. 3 4. 4 4. 3 4. 0 4. 5 4. 7 3, 2 LS, p=0. 0437 3 7 3 p 3 p 3 p 4. 2 T...-29. Question 27 showed learning style to be significant when a student chose to do 10-key lessons. This is when a student actually leaves the typing section of the program and chooses to practice with the 10-key pad on the keyboard. The convergers (4. 0) far...
Broader source: Energy.gov [DOE]
Original Impact Calculations, from the Tool Kit Framework: Small Town University Energy Program (STEP).
INFORMATION SECURITY ATTACK TREE MODELING An Effective Approach for Enhancing Student Learning
the engineering principle of Failure Mode and Effect Analysis (FMEA). The main goal of this principle, the project plan can be created more realistically. FMEA techniques [1] help to identify failure potential
Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)
Advanced Wall Systems ORNL Home ASTM Testing BEP Home Related Sites Work With Us Advanced Wall Systems Home Interactive Calculators New Whole Wall R-value Calculators As A Part Of...
Kowalski, F V
2013-01-01T23:59:59.000Z
This paper describes results from a project in an undergraduate engineering physics course that coupled classroom use of interactive computer simulations with the collection of real-time formative assessment using pen-enabled mobile technology. Interactive simulations (free or textbook-based) are widely used across the undergraduate science and engineering curriculia to help actively engaged students increase their understanding of abstract concepts or phenomena which are not directly or easily observable. However, there are indications in the literature that we do not yet know the pedagogical best practices associated with their use to maximize learning. This project couples student use of interactive simulations with the gathering of real-time formative assessment via pen-enabled mobile technology (in this case, Tablet PCs). The research question addressed in this paper is: are learning gains achieved with this coupled model greater for certain types of learners in undergraduate STEM classrooms? To answer t...
The effect of handwriting as a cue selection variable in paired-associate learning
Shahnasarian, Michael
1981-01-01T23:59:59.000Z
RESULTS Stimulus mode of presentation (cursive vs. typed) by stimulus color (red vs. blue) by cues present at test ( both, writing, color or neither) by word counterbalancing (four groups) analysis of variance was computed for the subjects' recall...) found that colors differ in their level of effectiveness, just as trigrams do. Solso found that color selections The format of this thesis follows the style of the Journal of Experimental Psychology: General. are greater for more meaningful colors (e...
Price, Joanne Kirkpatrick
2007-01-01T23:59:59.000Z
Theory framework, this type learning, called ‘expansivethat give rise to these types of learning, as well asimportance of each type of learning in achieving effective
Writing and Assessing Learning Outcomes
Fernandez, Eduardo
Outcomes... Are student-focused Focus on learning resulting from an activity rather than the activity outcomes) to describing effectiveness (Learning outcomes) · Links Student Affairs and Academic Affairs; links curricular and co-curricular #12;Biggest challenges to assessing learning · Students do
Multiphase flow calculation software
Fincke, James R. (Idaho Falls, ID)
2003-04-15T23:59:59.000Z
Multiphase flow calculation software and computer-readable media carrying computer executable instructions for calculating liquid and gas phase mass flow rates of high void fraction multiphase flows. The multiphase flow calculation software employs various given, or experimentally determined, parameters in conjunction with a plurality of pressure differentials of a multiphase flow, preferably supplied by a differential pressure flowmeter or the like, to determine liquid and gas phase mass flow rates of the high void fraction multiphase flows. Embodiments of the multiphase flow calculation software are suitable for use in a variety of applications, including real-time management and control of an object system.
Kanitkar, Anjali Shridhar
2010-04-28T23:59:59.000Z
This study was designed as an extension of a formative pilot study to enhance the Blending Assessment with Instruction Program (BAIP) developed by the Center for Educational Testing and Evaluation (CETE) and the eLearning ...
Broader source: Energy.gov [DOE]
Our appliance and electronic energy use calculator allows you to estimate your annual energy use and cost to operate specific products. The wattage values provided are samples only; actual wattage...
MBA in Professional Accounting Program Learning Goals and Objectives
MBA in Professional Accounting Program Learning Goals and Objectives 1. Communication Skills Learning Goal Students graduating with an MBA in Professional Accounting degree will be able to effectively ideas in an understandable manner. 2. Professional Accounting Knowledge Learning Goal Students
Medical physics calculations with MCNP: a primer
Lazarine, Alexis D
2006-10-30T23:59:59.000Z
of Medical Internal Radiation Dose (MIRD) specific absorbed fraction (SAF) values using the ORNL MIRD phantom, x-ray phototherapy effectiveness, prostate brachytherapy lifetime dose calculations, and a radiograph of the head using the Zubal head phantom. Also...
Geothermal Life Cycle Calculator
Sullivan, John
2014-03-11T23:59:59.000Z
This calculator is a handy tool for interested parties to estimate two key life cycle metrics, fossil energy consumption (Etot) and greenhouse gas emission (ghgtot) ratios, for geothermal electric power production. It is based solely on data developed by Argonne National Laboratory for DOE’s Geothermal Technologies office. The calculator permits the user to explore the impact of a range of key geothermal power production parameters, including plant capacity, lifetime, capacity factor, geothermal technology, well numbers and depths, field exploration, and others on the two metrics just mentioned. Estimates of variations in the results are also available to the user.
Geothermal Life Cycle Calculator
DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]
Sullivan, John
This calculator is a handy tool for interested parties to estimate two key life cycle metrics, fossil energy consumption (Etot) and greenhouse gas emission (ghgtot) ratios, for geothermal electric power production. It is based solely on data developed by Argonne National Laboratory for DOE’s Geothermal Technologies office. The calculator permits the user to explore the impact of a range of key geothermal power production parameters, including plant capacity, lifetime, capacity factor, geothermal technology, well numbers and depths, field exploration, and others on the two metrics just mentioned. Estimates of variations in the results are also available to the user.
Using learning decomposition to analyze student fluency development
Mostow, Jack
introduces an approach called learning decomposition to analyze what types of practice are most effective TO LEARNING CURVES AND LEARNING DECOMPOSITION The goal of this paper is to investigate how different types learning curves to measure the relative impact of various types of learning events. For tracking student
Schleife, A; Bechstedt, F
2012-02-15T23:59:59.000Z
Many-body perturbation theory is applied to compute the quasiparticle electronic structures and the optical-absorption spectra (including excitonic effects) for several transparent conducting oxides. We discuss HSE+G{sub 0}W{sub 0} results for band structures, fundamental band gaps, and effective electron masses of MgO, ZnO, CdO, SnO{sub 2}, SnO, In{sub 2}O{sub 3}, and SiO{sub 2}. The Bethe-Salpeter equation is solved to account for excitonic effects in the calculation of the frequency-dependent absorption coefficients. We show that the HSE+G{sub 0}W{sub 0} approach and the solution of the Bethe-Salpeter equation are very well-suited to describe the electronic structure and the optical properties of various transparent conducting oxides in good agreement with experiment.
Broader source: Energy.gov [DOE]
This calculator estimates the amount of carbon emissions you and members of your household are responsible for. It does not include emissions associated with your work or getting to work if you commute by public transportation. It was developed by IEEE Spectrum magazine.
Zhao Dongqiu; Huang Xiaowei; Tian Baoli; Zhou Shaomin; Li Yuncai; Du Zuliang [Key Lab for Special Functional Materials of Ministry of Education, Henan University, Kaifeng 475004 (China)
2011-04-18T23:59:59.000Z
The effect of electronegative difference between nitrogen and oxygen on electronic properties of N-doped anatase TiO{sub 2} has been studied using first-principles calculations. The results indicate that the valence band maximum (VBM) shifts to high energy by 0.27 eV and the band gap states composed of N 2p, O 2p, and Ti 3d states are formed through the three states entering into the gap after N doping. The interactions of three states widen and delocalize the band gap states. The raised VBM and the wide band gap states can improve the visible light photocatalytic activity.
Pedicini, Piernicola, E-mail: ppiern@libero.it [Service of Medical Physics, I.R.C.C.S. Regional Cancer Hospital C.R.O.B, Rionero in Vulture (Italy); Strigari, Lidia [Laboratory of Medical Physics and Expert Systems, Regina Elena National Cancer Institute, Rome (Italy); Benassi, Marcello [Service of Medical Physics, Scientific Institute of Tumours of Romagna I.R.S.T., Meldola (Italy); Caivano, Rocchina [Service of Medical Physics, I.R.C.C.S. Regional Cancer Hospital C.R.O.B, Rionero in Vulture (Italy); Fiorentino, Alba [U.O. of Radiotherapy, I.R.C.C.S. Regional Cancer Hospital C.R.O.B., Rionero in Vulture (Italy); Nappi, Antonio [U.O. of Nuclear Medicine, I.R.C.C.S. Regional Cancer Hospital C.R.O.B., Rionero in Vulture (Italy); Salvatore, Marco [U.O. of Nuclear Medicine, I.R.C.C.S. SDN Foundation, Naples (Italy); Storto, Giovanni [U.O. of Nuclear Medicine, I.R.C.C.S. Regional Cancer Hospital C.R.O.B., Rionero in Vulture (Italy)
2014-04-01T23:59:59.000Z
To increase the efficacy of radiotherapy for non–small cell lung cancer (NSCLC), many schemes of dose fractionation were assessed by a new “toxicity index” (I), which allows one to choose the fractionation schedules that produce less toxic treatments. Thirty-two patients affected by non resectable NSCLC were treated by standard 3-dimensional conformal radiotherapy (3DCRT) with a strategy of limited treated volume. Computed tomography datasets were employed to re plan by simultaneous integrated boost intensity-modulated radiotherapy (IMRT). The dose distributions from plans were used to test various schemes of dose fractionation, in 3DCRT as well as in IMRT, by transforming the dose-volume histogram (DVH) into a biological equivalent DVH (BDVH) and by varying the overall treatment time. The BDVHs were obtained through the toxicity index, which was defined for each of the organs at risk (OAR) by a linear quadratic model keeping an equivalent radiobiological effect on the target volume. The less toxic fractionation consisted in a severe/moderate hyper fractionation for the volume including the primary tumor and lymph nodes, followed by a hypofractionation for the reduced volume of the primary tumor. The 3DCRT and IMRT resulted, respectively, in 4.7% and 4.3% of dose sparing for the spinal cord, without significant changes for the combined-lungs toxicity (p < 0.001). Schedules with reduced overall treatment time (accelerated fractionations) led to a 12.5% dose sparing for the spinal cord (7.5% in IMRT), 8.3% dose sparing for V{sub 20} in the combined lungs (5.5% in IMRT), and also significant dose sparing for all the other OARs (p < 0.001). The toxicity index allows to choose fractionation schedules with reduced toxicity for all the OARs and equivalent radiobiological effect for the tumor in 3DCRT, as well as in IMRT, treatments of NSCLC.
Vlach & Sandhofer, In Press, Child Development Distributing Learning Over Time
Rose, Michael R.
of the spacing effect have focused on memory processes rather than for other types of learning simple and complex concepts. Spaced learning schedules promote several types of learning, strengtheningVlach & Sandhofer, In Press, Child Development Distributing Learning Over Time: The Spacing Effect
CALCULATING THE CARBON FOOTPRINT SUPPLY CHAIN FOR THE
Su, Xiao
CALCULATING THE CARBON FOOTPRINT SUPPLY CHAIN FOR THE SEMICONDUCTOR INDUSTRY A LEARNING TOOL By a complete supply chain #12;Carbon Footprint Supply Chain Carbon Trust defines carbon footprint of a supply chain as follows: "The carbon footprint of a product is the carbon dioxide emitted across the supply
Science Learning+: Phase 1 projects Science Learning+
Rambaut, Andrew
Science Learning+: Phase 1 projects Science Learning+ Phase 1 projects 2 December 2014 #12..............................................................................................................4 Youth access and equity in informal science learning: developing a research and practice agenda..................................................................................................5 Enhancing informal learning through citizen science..............................................6
Shi, Qinfeng "Javen"
info 2 Machine Learning What's Machine Learning? Types of Learning Overfitting Occam's Razor 3 Real's Machine Learning? Types of Learning Overfitting Occam's Razor Machine Learning Using data to uncover Real life problems What's Machine Learning? Types of Learning Overfitting Occam's Razor Formulation
Embedding Learning Strategies into the Curriculum
Northern British Columbia, University of
Embedding Learning Strategies into the Curriculum VI VI AN FA YOWSKI BRENDA KOLLER Academic Success can you embed learning strategies into the curriculum? Use your syllabus Build time management skills learning strategies into the curriculum? 2. Tie the textbook to effective note-taking · "Walk through
THE LEARNING Cardiff Centre for Lifelong Learning
Davies, Christopher
for different types of learning. You will need to adopt learning strategies that are most appropriateTHE LEARNING GUIDE Cardiff Centre for Lifelong Learning Canolfan Caerdydd ar gyfer Addysg Gydol Oes www.cardiff.ac.uk/learn www.caerdydd.ac.uk/dysgu #12;The Cardiff Centre for Lifelong Learning provides
O'Leary, Michael Boyer
While organizations strive to manage the time and attention of workers effectively, the practice of asking workers to contribute to multiple teams simultaneously can result in the opposite. We present a model of the effects ...
The Effects of Land-Use Regulation on the Price of Housing: What Do We Know? What Can We Learn?
Quigley, John M.; Rosenthal, Larry A.
2005-01-01T23:59:59.000Z
to S housing can price development licenses to requireany real effect on prices, development patterns, or growth
Webinar: Using the RTU Comparison Calculator to Justify High-Efficiency Units
Broader source: Energy.gov [DOE]
The Advanced Rooftop Unit (RTU) Campaign is working with the Pacific Northwest National Laboratory (PNNL) to update its RTU Comparison Calculator (RTUCC). Join this webinar to learn how contractors...
Learning and Development | Department of Energy
Broader source: Energy.gov (indexed) [DOE]
corporate training and development activities. Our goal is to achieve efficient, effective learning and development through evaluation and continuous process improvement efforts....
How Are Momentum Savings Calculated?
Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)
Simplifying the Math: How Are Momentum Savings Calculated? Many people have heard about Momentum savings but don't understand how these types of savings are calculated. The short...
Affect and Engagement in Game-Based Learning Environments
Young, R. Michael
at regulating their affective experiences during learning [6]. For example, students who are focused on learning Abstract--The link between affect and student learning has been the subject of increasing attention with learning while negative states such as boredom and frustration have the opposite effect. Student engagement
Health Calculators & Logs - HPMC Occupational Health Services
Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)
Calculators & Logs Health Education & Wellness Downloads & Patient Materials Health & Productivity Health Calculators & Logs Body Mass Index Calorie Calculator Health Coaching...
Calorie Calculator - HPMC Occupational Health Services
Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)
Calorie Calculator Health Education & Wellness Downloads & Patient Materials Health & Productivity Health Calculators & Logs Body Mass Index Calorie Calculator Health Coaching...
Memory Systems in Sequence Learning Many sequence learning studies have discordant results on the
Reber, Paul J.
Memory Systems in Sequence Learning · Many sequence learning studies have discordant results on the effect explicit sequence knowledge has on the learning and expression of motor sequences. Motor Skill Expertise · Motor skill expertise utilizes both the explicit declarative knowledge of the sequence
REEDMULTIMEDIA LEARNING Cognitive Architectures for Multimedia Learning
Gallo, Linda C.
REEDMULTIMEDIA LEARNING Cognitive Architectures for Multimedia Learning Stephen K. Reed Center overview of cognitive architectures that can form a theoretical foundation for designing multimedia operations. Architectures that are relevant to multimedia learning include Paivio's dual coding theory
Application of functional learning to ATPG and design verification for combinational circuits
Mukherjee, Rajarshim
1994-01-01T23:59:59.000Z
to detect faults and in detecting redundant faults. Learning techniques have also been effectively applied to the problem of design verification for combinational circuits. This paper presents Functional Learning, a new method of learning, based...
LCEs for Naval Reactor Benchmark Calculations
W.J. Anderson
1999-07-19T23:59:59.000Z
The purpose of this engineering calculation is to document the MCNP4B2LV evaluations of Laboratory Critical Experiments (LCEs) performed as part of the Disposal Criticality Analysis Methodology program. LCE evaluations documented in this report were performed for 22 different cases with varied design parameters. Some of these LCEs (10) are documented in existing references (Ref. 7.1 and 7.2), but were re-run for this calculation file using more neutron histories. The objective of this analysis is to quantify the MCNP4B2LV code system's ability to accurately calculate the effective neutron multiplication factor (k{sub eff}) for various critical configurations. These LCE evaluations support the development and validation of the neutronics methodology used for criticality analyses involving Naval reactor spent nuclear fuel in a geologic repository.
Deadend driven learning 3 Daniel Frost and Rina Dechter
Dechter, Rina
that learning can speed up backjumping when using either a fixed or dynamic variable orderÂ ing. However the effectiveness of learning for speeding up the solution of constraint satisfaction problems. It extends previous in this paper is to study the effect of learnÂ ing in speeding up the solution of constraint probÂ lems
Computational Tools for Supersymmetry Calculations
Howard Baer
2009-12-16T23:59:59.000Z
I present a brief overview of a variety of computational tools for supersymmetry calculations, including: spectrum generators, cross section and branching fraction calculators, low energy constraints, general purpose event generators, matrix element event generators, SUSY dark matter codes, parameter extraction codes and Les Houches interface tools.
Closure and Sealing Design Calculation
T. Lahnalampi; J. Case
2005-08-26T23:59:59.000Z
The purpose of the ''Closure and Sealing Design Calculation'' is to illustrate closure and sealing methods for sealing shafts, ramps, and identify boreholes that require sealing in order to limit the potential of water infiltration. In addition, this calculation will provide a description of the magma that can reduce the consequences of an igneous event intersecting the repository. This calculation will also include a listing of the project requirements related to closure and sealing. The scope of this calculation is to: summarize applicable project requirements and codes relating to backfilling nonemplacement openings, removal of uncommitted materials from the subsurface, installation of drip shields, and erecting monuments; compile an inventory of boreholes that are found in the area of the subsurface repository; describe the magma bulkhead feature and location; and include figures for the proposed shaft and ramp seals. The objective of this calculation is to: categorize the boreholes for sealing by depth and proximity to the subsurface repository; develop drawing figures which show the location and geometry for the magma bulkhead; include the shaft seal figures and a proposed construction sequence; and include the ramp seal figure and a proposed construction sequence. The intent of this closure and sealing calculation is to support the License Application by providing a description of the closure and sealing methods for the Safety Analysis Report. The closure and sealing calculation will also provide input for Post Closure Activities by describing the location of the magma bulkhead. This calculation is limited to describing the final configuration of the sealing and backfill systems for the underground area. The methods and procedures used to place the backfill and remove uncommitted materials (such as concrete) from the repository and detailed design of the magma bulkhead will be the subject of separate analyses or calculations. Post-closure monitoring will not be addressed in this calculation.
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:1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:5 TablesExports(Journal Article)41cloth Documentation DataDepartment of EnergyOn-Farm1 of 62.1Energy,Busy Y-12 Fire StationWallace to
Niemeyer, Patrick
2005-01-01T23:59:59.000Z
Version 5.0 of the Java 2 Standard Edition SDK is the most important upgrade since Java first appeared a decade ago. With Java 5.0, you'll not only find substantial changes in the platform, but to the language itself-something that developers of Java took five years to complete. The main goal of Java 5.0 is to make it easier for you to develop safe, powerful code, but none of these improvements makes Java any easier to learn, even if you've programmed with Java for years. And that means our bestselling hands-on tutorial takes on even greater significance. Learning Java is the most widely sou
SB EE Calculator | Argonne National Laboratory
Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)
Calculator Energy Efficiency Decision Support Calculator Argonne's Energy Efficiency Decision Support Calculator is a simple tool that small business owners can use to quickly...
Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]
1997-03-28T23:59:59.000Z
It is a fundamental human characteristic that a person engaged in a repetitive task will improve his performance over time. If data are gathered on this phenomenon, a curve representing a decrease in effort per unit for repetitive operations can be developed. This phenomenon is real and has a specific application in cost analysis, cost estimating, or profitability studies related to the examination of future costs and confidence levels in an analysis. This chapter discusses the development and application of the learning curve.
Transfer Area Mechanical Handling Calculation
B. Dianda
2004-06-23T23:59:59.000Z
This calculation is intended to support the License Application (LA) submittal of December 2004, in accordance with the directive given by DOE correspondence received on the 27th of January 2004 entitled: ''Authorization for Bechtel SAX Company L.L. C. to Include a Bare Fuel Handling Facility and Increased Aging Capacity in the License Application, Contract Number DE-AC28-01R W12101'' (Arthur, W.J., I11 2004). This correspondence was appended by further Correspondence received on the 19th of February 2004 entitled: ''Technical Direction to Bechtel SAIC Company L.L. C. for Surface Facility Improvements, Contract Number DE-AC28-OIRW12101; TDL No. 04-024'' (BSC 2004a). These documents give the authorization for a Fuel Handling Facility to be included in the baseline. The purpose of this calculation is to establish preliminary bounding equipment envelopes and weights for the Fuel Handling Facility (FHF) transfer areas equipment. This calculation provides preliminary information only to support development of facility layouts and preliminary load calculations. The limitations of this preliminary calculation lie within the assumptions of section 5 , as this calculation is part of an evolutionary design process. It is intended that this calculation is superseded as the design advances to reflect information necessary to support License Application. The design choices outlined within this calculation represent a demonstration of feasibility and may or may not be included in the completed design. This calculation provides preliminary weight, dimensional envelope, and equipment position in building for the purposes of defining interface variables. This calculation identifies and sizes major equipment and assemblies that dictate overall equipment dimensions and facility interfaces. Sizing of components is based on the selection of commercially available products, where applicable. This is not a specific recommendation for the future use of these components or their related manufacturer. A component produced by one manufacturer certainly varies dimensionally from a similar product produced by a different manufacturer. The internal envelope dimensions are dependent on the selection of the individual components. The external envelope dimensions, as well as, key interface dimensions are established within this calculation and are to be treated as bounding dimensions.
Loraas, Tina Marie
2005-11-01T23:59:59.000Z
This research investigated the decision process surrounding the self-regulated learning of new uses of existing technology. With firms investing up to 50% of their capital budgets on information technology (in excess of ...
Once-through steam-generator sensitivity calculations
Steiner, J.L.; Siebe, D.A.
1988-01-01T23:59:59.000Z
A series of TRAC-PF1/MOD2 thermal-hydraulic calculations has been performed to determine the effect of uncertainties in modeling once through steam-generator (OTSG) secondary-side phenomena on the calculated behavior of Babcock and Wilcox power plants. The calculations were performed by varying parameters in correlations for the secondary-side phenomena. The parameters and transients were chosen to show the maximum expected sensitivity of the calculated results to the parameter variations. The parameters were then varied over a range representing the estimated uncertainty in the correlation. In this manner, the sensitivity if the calculated plant behavior to the modeling uncertainties was determined with a reasonable number of calculations. The sensitivity of calculated plant behavior to variations in interfacial heat-transfer in the OTSG secondaries was determined in a series of steam-generator overfill transient calculations. Calculations were performed for a main steam line break (MSLB) transient to quantify the sensitivity to variations in interfacial drag in the secondaries; the interfacial drag was varied in these calculations to indicate the effects of entrainment and de-entrainment processes, for which no specific models exist in the code. In addition to the transient calculations, a series of steady-state calculations was performed to determine the sensitivity of the OTSG primary-to-secondary heat transfer to the assumed fraction of tubes wetted by the auxiliary feedwater (AFW) injection. The plant model used for the sensitivity calculations was qualified by performing a benchmark calculation for a natural circulation test in the TMI-1 plant.
Herbert, Bruce
is characterized by: A clear focus on student learning. The scholarship of teaching and learning is drivenLeadership for the Scholarship of Teaching and Learning Improve student learning Stimulate and their students learning; many today are trying new classroom approaches in the hopes of strengthening
An efficient Java implementation of the immediate successors calculation
Paris-Sud XI, Université de
An efficient Java implementation of the immediate successors calculation Cl´ement Gu´erin, Karell an effective Java imple- mentation of the concept immediate successors calculation. It is based on the lattice Java library, developed by K. Bertet and the Limited Objects Access algorithm, proposed by C. Demko [5
Accelerating materials property predictions using machine learning
Alpay, S. Pamir
Accelerating materials property predictions using machine learning Ghanshyam Pilania1 , Chenchen Wang1 , Xun Jiang2 , Sanguthevar Rajasekaran3 & Ramamurthy Ramprasad1 1 Department of Materials Science. The materials discovery process can be significantly expedited and simplified if we can learn effectively from
Learning Communities Peer Mentor
Lin, Zhiqun
, focused communities in which students, staff, and faculty can learn and grow together. Intended Outcomes Experience -Student Evaluations Archive Materials -Reflections of Previous Peer Mentors -Learning Community Activities -Student Evaluation Archives -Former Mentor Contact list #12;Learning Communities Vision Statement
Building wall heat flux calculations
Park, J.E.; Kirkpatrick, J.R.; Tunstall, J.N.; Childs, K.W.
1987-01-01T23:59:59.000Z
Calculations of the heat transfer through the standard stud wall structure of a residential building are described. The wall cavity contains no insulation. Four of the five test cases represent progressively more complicated approximations to the heat transfer through and within a hollow wall structure. The fifth adds the model components necessary to severely inhibit the radiative energy transport across the empty cavity. Flow within the wall cavity is calculated from the Navier-Stokes equations and the energy conservation equation for an ideal gas using the Implicit Compressible Eulerian (ICE) algorithm. The fluid flow calculation is coupled to the radiation-conduction model for the solid portions of the system. Conduction through sill plates is about 4% of the total heat transferred through a composite wall.
Oxygen Toxicity Calculations by Erik C. Baker, P.E.
Read, Charles
calculations. The first is pulmonary oxygen toxicity which primarily concerns the effects to the lungs of long is the maximum volume of air (or gas) that a person can expel from his/her lungs after first filling the lungs
Permeability Calculation in a Fracture Network - 12197
Lee, Cheo Kyung; Kim, Hyo Won [Handong Global University, 3 Namsong-ri, Heunghae-eub, Buk-gu, Pohang, Kyungbuk, 791-708 (Korea, Republic of); Yim, Sung Paal [Korea Atomic Energy Research Institute, Yusong, Daejon, 305-600 (Korea, Republic of)
2012-07-01T23:59:59.000Z
Laminar flow of a viscous fluid in the pore space of a saturated fractured rock medium is considered to calculate the effective permeability of the medium. The effective permeability is determined from the flow field which is calculated numerically by using the finite element method. The computation of permeability components is carried out with a few different discretizations for a number of fracture arrangements. Various features such as flow field in the fracture channels, the convergence of permeability, and the variation of permeability among different fracture networks are discussed. The longitudinal permeability in general appears greater than the transverse ones. The former shows minor variations with fracture arrangement whereas the latter appears to be more sensitive to the arrangement. From the calculations of the permeability in a rock medium with a fracture network (two parallel fractures aligned in the direction of 45-deg counterclockwise from the horizontal and two connecting fractures(narrowing, parallel and widening) the following conclusions are drawn. 1. The permeability of fractured medium not only depends on the primary orientation of the main fractures but also is noticeably influenced by the connecting fractures in the medium. 2. The transverse permeability (the permeability in the direction normal to the direction of the externally imposed macro-scale pressure gradient) is only a fraction of the longitudinal one, but is sensitive to the arrangement of the connecting fractures. 3. It is important to figure out the pattern of the fractures that connect (or cross) the main fractures for reliable calculation of the transverse permeability. (authors)
DOE's Roof Savings Calculator (RSC)
Wang, Xiaorui "Ray"
DOE's Roof Savings Calculator (RSC) http://rsc.ornl.gov (www.roofcalc.com) in collaboration) Whole Building and Community Integration Group for: MCA Roofing Council Clearwater Beach, FL January 27, 2014 #12;Presentation summary · Context US Energy and ORNL BTRIC · Building Physics · Roof Savings
Relativistic mean field calculations in neutron-rich nuclei
Gangopadhyay, G.; Bhattacharya, Madhubrata [Department of Physics, University of Calcutta, 92 Acharya Prafulla Chandra Road, Kolkata 700 009 (India); Roy, Subinit [Saha Institute of Nuclear Physics, Block AF, Sector 1, Kolkata- 700 064 (India)
2014-08-14T23:59:59.000Z
Relativistic mean field calculations have been employed to study neutron rich nuclei. The Lagrange's equations have been solved in the co-ordinate space. The effect of the continuum has been effectively taken into account through the method of resonant continuum. It is found that BCS approximation performs as well as a more involved Relativistic Continuum Hartree Bogoliubov approach. Calculations reveal the possibility of modification of magic numbers in neutron rich nuclei. Calculation for low energy proton scattering cross sections shows that the present approach reproduces the density in very light neutron rich nuclei.
Field observations and lessons learned
Nielsen, Joh B [Los Alamos National Laboratory
2010-01-01T23:59:59.000Z
This presentation outlines observations and lessons learned from the Megaports program. It provides: (1) details of field and technical observations collected during LANL field activities at ports around the world and details of observations collected during radiation detections system testing at Los Alamos National Laboratory; (2) provides suggestions for improvement and efficiency; and (3) discusses possible program execution changes for more effective operations.
Power, status, and learning in organizations
Bunderson, J. Stuart
This paper reviews the scholarly literature on the effects of social hierarchy—differences in power and status among organizational actors—on collective learning in organizations and groups. We begin with the observation ...
Touschek Lifetime Calculations for NSLS-II
Nash,B.; Kramer, S.
2009-05-04T23:59:59.000Z
The Touschek effect limits the lifetime for NSLS-II. The basic mechanism is Coulomb scattering resulting in a longitudinal momentum outside the momentum aperture. The momentum aperture results from a combination of the initial betatron oscillations after the scatter and the non-linear properties determining the resultant stability. We find that higher order multipole errors may reduce the momentum aperture, particularly for scattered particles with energy loss. The resultant drop in Touschek lifetime is minimized, however, due to less scattering in the dispersive regions. We describe these mechanisms, and present calculations for NSLS-II using a realistic lattice model including damping wigglers and engineering tolerances.
Black, Charles Beyer
2004-11-15T23:59:59.000Z
Three experiments compared learning of relative and absolute timing of a sequential key-pressing task by physical and observational practice. Experiment 1 compared a task with a complex internal structure (goal proportions of 22.2, 44.4, 33...
Black, Charles Beyer
2004-11-15T23:59:59.000Z
Three experiments compared learning of relative and absolute timing of a sequential key-pressing task by physical and observational practice. Experiment 1 compared a task with a complex internal structure (goal proportions of 22.2, 44.4, 33...
Defeat in victory : organizational learning dysfunction in counterinsurgency
Jackson, Colin F. (Colin Francis)
2008-01-01T23:59:59.000Z
Two puzzles dominate the study of organizational learning and counterinsurgency. First, militaries often struggle to develop effective strategies to address the problem of counterinsurgency. Second, their strategic performance ...
Advanced Neutronics Tools for BWR Design Calculations
Santamarina, A.; Hfaiedh, N.; Letellier, R.; Sargeni, A.; Vaglio, C. [CEA-Cadarache, 13108 St Paul lez Durance Cedex (France); Marotte, V. [AREVA NP SAS (France); Misu, S. [AREVA NP GmbH (Germany); Zmijarevic, I. [CEA-Saclay, 91191 Gif-sur-Yvette Cedex (France)
2006-07-01T23:59:59.000Z
This paper summarizes the developments implemented in the new APOLLO2.8 neutronics tool to meet the required target accuracy in LWR applications, particularly void effects and pin-by-pin power map in BWRs. The Method Of Characteristics was developed to allow efficient LWR assembly calculations in 2D-exact heterogeneous geometry; resonant reaction calculation was improved by the optimized SHEM-281 group mesh, which avoids resonance self-shielding approximation below 23 eV, and the new space-dependent method for resonant mixture that accounts for resonance overlapping. Furthermore, a new library CEA2005, processed from JEFF3.1 evaluations involving feedback from Critical Experiments and LWR P.I.E, is used. The specific '2005-2007 BWR Plan' settled to demonstrate the validation/qualification of this neutronics tool is described. Some results from the validation process are presented: the comparison of APOLLO2.8 results to reference Monte Carlo TRIPOLI4 results on specific BWR benchmarks emphasizes the ability of the deterministic tool to calculate BWR assembly multiplication factor within 200 pcm accuracy for void fraction varying from 0 to 100%. The qualification process against the BASALA mock-up experiment stresses APOLLO2.8/CEA2005 performances: pin-by-pin power is always predicted within 2% accuracy, reactivity worth of B4C or Hf cruciform control blade, as well as Gd pins, is predicted within 1.2% accuracy. (authors)
Criticality calculations for Step-2 GPHS modules.
Hensen, Danielle Lynn; Lipinski, Ronald J.
2007-08-01T23:59:59.000Z
The Multi-Mission Radioisotope Thermoelectric Generator (MMRTG) will use an improved version of the General Purpose Heat Source (GPHS) module as its source of thermal power. This new version, referred to as the Step-2 GPHS Module, has additional and thicker layers of carbon fiber material (Fine Weaved Pierced Fabric) for increased strength over the original GPHS module. The GPHS uses alpha decay of {sup 238}Pu in the oxide form as the primary source of heat, and small amounts of other actinides are also present in the oxide fuel. Criticality calculations have been performed by previous researchers on the original version of the GPHS module (Step 0). This paper presents criticality calculations for the present Step-2 version. The Monte Carlo N-Particle eXtended code (MCNPX) was used for these calculations. Numerous configurations of GPHS module arrays surrounded by wet sand and other materials (to reflect the neutrons back into the stack with minimal absorption) were modeled. For geometries with eight GPHS modules (from a single MMRTG) surrounded by wet sand, the configuration is extremely sub-critical; k{sub eff} is about 0.3. It requires about 1000 GPHS modules (from 125 MMRTGs) in a close-spaced stack to approach criticality (k{sub eff} = 1.0) when surrounded by wet sand. The effect of beryllium in the MMRTG was found to be relatively small.
Criticality Calculations for Step-2 GPHS Modules
Lipinski, Ronald J. [Advanced Nuclear Concepts Department, Sandia National Laboratories, P.O Box 5800, Albuquerque, NM 87185 (United States); Hensen, Danielle L. [Risk and Reliability Department Sandia National Laboratories, P.O Box 5800, Albuquerque, NM 87185 (United States)
2008-01-21T23:59:59.000Z
The Multi-Mission Radioisotope Thermoelectric Generator (MMRTG) will use an improved version of the General Purpose Heat Source (GPHS) module as its source of thermal power. This new version, referred to as the Step-2 GPHS Module, has additional and thicker layers of carbon fiber material (Fine Weaved Pierced Fabric) for increased strength over the original GPHS module. The GPHS uses alpha decay of {sup 238}Pu in the oxide form as the primary source of heat, and small amounts of other actinides are also present in the oxide fuel. Criticality calculations have been performed by previous researchers on the original version of the GPHS module (Step 0). This paper presents criticality calculations for the present Step-2 version. The Monte Carlo N-Particle eXtended code (MCNPX) was used for these calculations. Numerous configurations of GPHS module arrays surrounded by wet sand and other materials (to reflect the neutrons back into the stack with minimal absorption) were modeled. For geometries with eight GPHS modules (from a single MMRTG) surrounded by wet sand, the configuration is extremely sub-critical; k{sub eff} is about 0.3. It requires about 1000 GPHS modules (from 125 MMRTGs) in a close-spaced stack to approach criticality (k{sub eff} = 1.0) when surrounded by wet sand. The effect of beryllium in the MMRTG was found to be relatively small.
Broader source: Energy.gov [DOE]
DOE Lessons Learned Information Services Catches the Eye of Corporations and Educational Institutions
Stochastic Learning and Optimization
Cao, Xiren
space [56]. The fundamental elements of learning and optimization are two types of performanceXi-Ren Cao Stochastic Learning and Optimization - A Sensitivity-Based Approach With 119 Figures, 27 be easily identified. Therefore, learning techniques have to be utilized. A Brief Description of Learning
Building wall heat flux calculations
Park, J.E.; Kirkpatrick, J.R.; Tunstall, J.N.; Childs, K.W.
1987-06-01T23:59:59.000Z
Calculations of the heat transfer through the standard stud wall structure of a residential building are described. The wall cavity contains no insulation. Four of the five test cases represent progressively more complicated approximations to the heat transfer through and within a hollow wall structure. The fifth adds the model components necessary to severely inhibit the radiative energy transport across the empty cavity. Flow within the wall cavity is calculated from the Navier-Stokes equations and the energy conservation equation for an ideal gas using the Implicit Compressible Eulerian (ICE) algorithm. The fluid flow calculation is coupled to the radiation-conduction model for the solid portions of the system. Conduction through sill plates is about 4% of the total heat transferred through a composite wall. All of the other model elements (conduction through wall board, sheathing, and siding; convection from siding and wallboard to ambients; and radiation across the wall cavity) are required to accurately predict the heat transfer through a wall. Addition of a foil liner on one inner surface of the wall cavity reduces the total heat transferred by almost 50%.
University of California Irvine Distance Learning Center Page 1 of 13
Rose, Michael R.
the students to practice what they are learning. Finally, no course would be complete without a method or practice what they are learning A means of evaluating how well students achieved learning objectives limitations, but with good course design and effective use of the distance learning course platform
Incorporating Weather Data into Energy Savings Calculations ...
Weather Data into Energy Savings Calculations Incorporating Weather Data into Energy Savings Calculations Better Buildings Residential Network Peer Exchange Call Series:...
Using a calculator to do statistics
Dave
2012-03-25T23:59:59.000Z
Statistics on a Scientific Calculator. NOTE: Some of these may not be regular keys on your calculator and may appear in a different color above another key.
Harmonic Analysis Errors in Calculating Dipole,
Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)
to reduce the harmonic field calculation errors. A conformal transfor- mation of a multipole magnet into a dipole reduces these errors. Dipole Magnet Calculations A triangular...
CALCULATIONS FOR A MERCURY JET TARGET IN A SOLENOID MAGNET CAPTURE SYSTEM
McDonald, Kirk
may cause cavitations in the mercury jet. The purpose of this study is to calculate the lowest order and from the calculated fields we provide numerical estimates of the magneto-hydrodynamic effects. Section
Changala, P. Bryan, E-mail: bryan.changala@colorado.edu; Baraban, Joshua H.; Field, Robert W. [Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (United States)] [Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (United States); Stanton, John F. [Department of Chemistry and Biochemistry, Institute for Theoretical Chemistry, The University of Texas at Austin, Austin, Texas 78712 (United States)] [Department of Chemistry and Biochemistry, Institute for Theoretical Chemistry, The University of Texas at Austin, Austin, Texas 78712 (United States); Merer, Anthony J. [Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei 10617, Taiwan and Department of Chemistry, University of British Columbia, Vancouver, British Columbia V6T 1Z1 (Canada)] [Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei 10617, Taiwan and Department of Chemistry, University of British Columbia, Vancouver, British Columbia V6T 1Z1 (Canada)
2014-01-14T23:59:59.000Z
Reduced dimension variational calculations have been performed for the rovibrational level structure of the S{sub 1} state of acetylene. The state exhibits an unusually complicated level structure, for various reasons. First, the potential energy surface has two accessible conformers, trans and cis. The cis conformer lies about 2700 cm{sup ?1} above the trans, and the barrier to cis-trans isomerization lies about 5000 cm{sup ?1} above the trans minimum. The trans vibrations ?{sub 4} (torsion) and ?{sub 6} (asym. bend) interact very strongly by Darling-Dennison and Coriolis resonances, such that their combination levels and overtones form polyads with unexpected structures. Both conformers exhibit very large x{sub 36} cross-anharmonicity since the pathway to isomerization is a combination of ?{sub 6} and ?{sub 3} (sym. bend). Near the isomerization barrier, the vibrational levels show an even-odd K-staggering of their rotational levels as a result of quantum mechanical tunneling through the barrier. The present calculations address all of these complications, and reproduce the observed K-structures of the bending and C–C stretching levels with good qualitative accuracy. It is expected that they will assist with the assignment of the irregular patterns near the isomerization barrier.
Lessons Learned | Department of Energy
Office of Environmental Management (EM)
Lessons Learned Lessons Learned The Department of Energy utilizes project management lessons learned (PMLL) in the execution of DOE capital asset projects to improve current and...
Neon - Scalable Deep Learning library
Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)
Neon Nervana Neon - Scalable Deep Learning library Description and Overview neon is an easy to use, python-based scalable Deep Learning library. Deep Learning has recently...
Comparison of TRAC calculations with experimental data. [PWR
Jackson, J.F.; Vigil, J.C.
1980-01-01T23:59:59.000Z
TRAC is an advanced best-estimate computer code for analyzing postulated accidents in light water reactors. This paper gives a brief description of the code followed by comparisons of TRAC calculations with data from a variety of separate-effects, system-effects, and integral experiments. Based on these comparisons, the capabilities and limitations of the early versions of TRAC are evaluated.
Loraas, Tina Marie
2005-11-01T23:59:59.000Z
WAITING TO LEARN A NEW USE OF TECHNOLOGY: MOTIVATION SOURCE AND ITS IMPACT ON ANTICIPATED AFFECT, TIME PRESSURE AND SUBJECTIVE NORMS A Dissertation by TINA MARIE LORAAS Submitted to the Office of Graduate Studies of Texas A... PRESSURE AND SUBJECTIVE NORMS A Dissertation by TINA MARIE LORAAS Submitted to Texas A&M University in partial fulfillment of the requirements for the degree of DOCTOR OF PHILOSOPHY Approved as to style and content by...
Pullum, Laura L [ORNL; Symons, Christopher T [ORNL
2011-01-01T23:59:59.000Z
Machine learning is used in many applications, from machine vision to speech recognition to decision support systems, and is used to test applications. However, though much has been done to evaluate the performance of machine learning algorithms, little has been done to verify the algorithms or examine their failure modes. Moreover, complex learning frameworks often require stepping beyond black box evaluation to distinguish between errors based on natural limits on learning and errors that arise from mistakes in implementation. We present a conceptual architecture, failure model and taxonomy, and failure modes and effects analysis (FMEA) of a semi-supervised, multi-modal learning system, and provide specific examples from its use in a radiological analysis assistant system. The goal of the research described in this paper is to provide a foundation from which dependability analysis of systems using semi-supervised, multi-modal learning can be conducted. The methods presented provide a first step towards that overall goal.
NONE
1998-05-01T23:59:59.000Z
An emphasis on transition and safe disposition of DOE excess facilities has brought about significant challenges to managing worker, public, and environmental risks. The transition and disposition activities involve a diverse range of hazardous facilities that are old, poorly maintained, and contain radioactive and hazardous substances, the extent of which may be unknown. In addition, many excess facilities do not have historical facility documents such as operating records, plant and instrumentation diagrams, and incident records. The purpose of this report is to present an overview of the Oak Ridge Decontamination and Decommissioning (D and D) Program, its safety performance, and associated safety and health lessons learned and good practices. Illustrative examples of these lessons learned and good practices are also provided. The primary focus of this report is on the safety and health activities and implications associated with the planning phase of Oak Ridge facility disposition projects. Section 1.0 of this report provides the background and purpose of the report. Section 2.0 presents an overview of the facility disposition activities from which the lessons learned and good practices discussed in Section 3.0 were derived.
Incorporating Learning Styles in a Computer-Supported Collaborative Learning
Griffiths, Nathan
they think and learn. Roschelle and Teasley focus more on the nature of interaction in collaborative learning a specific problem. Student reading groups for language learning courses are an example of learning groupsIncorporating Learning Styles in a Computer-Supported Collaborative Learning Model Shuangyan Liua
Learning poisson binomial distributions
Daskalakis, Constantinos
We consider a basic problem in unsupervised learning: learning an unknown Poisson Binomial Distribution. A Poisson Binomial Distribution (PBD) over {0,1,...,n} is the distribution of a sum of n independent Bernoulli random ...
Broader source: Energy.gov [DOE]
Continual Learning is a change initiative which is used to help develop and grow a learning culture within DOE. Employee development in any organization and at any level is never ending.
Random number stride in Monte Carlo calculations
Hendricks, J.S.
1990-01-01T23:59:59.000Z
Monte Carlo radiation transport codes use a sequence of pseudorandom numbers to sample from probability distributions. A common practice is to start each source particle a predetermined number of random numbers up the pseudorandom number sequence. This number of random numbers skipped between each source particles the random number stride, S. Consequently, the jth source particle always starts with the j{center dot}Sth random number providing correlated sampling'' between similar calculations. A new machine-portable random number generator has been written for the Monte Carlo radiation transport code MCNP providing user's control of the random number stride. First the new MCNP random number generator algorithm will be described and then the effects of varying the stride will be presented. 2 refs., 1 fig.
Oyarzun, Carlos
2009-06-02T23:59:59.000Z
This dissertation contains three essays on learning and risk aversion. In the first essay we consider how learning may lead to risk averse behavior. A learning rule is said to be risk averse if it is expected to add more probability to an action...
Oyarzun, Carlos
2009-06-02T23:59:59.000Z
This dissertation contains three essays on learning and risk aversion. In the first essay we consider how learning may lead to risk averse behavior. A learning rule is said to be risk averse if it is expected to add more probability to an action...
Learning to change, changing to learn : district conditions for organizational learning
Guthrie, Victor Anthony
2011-01-01T23:59:59.000Z
are each focused on student learning. ” By their reports,2011). The focused theme of students learning continues and
RTU Comparison Calculator Enhancement Plan
Miller, James D.; Wang, Weimin; Katipamula, Srinivas
2014-03-31T23:59:59.000Z
Over the past two years, Department of Energy’s Building Technologies Office (BTO) has been investigating ways to increase the operating efficiency of the packaged rooftop units (RTUs) in the field. First, by issuing a challenge to the RTU manufactures to increase the integrated energy efficiency ratio (IEER) by 60% over the existing ASHRAE 90.1-2010 standard. Second, by evaluating the performance of an advanced RTU controller that reduces the energy consumption by over 40%. BTO has previously also funded development of a RTU comparison calculator (RTUCC). RTUCC is a web-based tool that provides the user a way to compare energy and cost savings for two units with different efficiencies. However, the RTUCC currently cannot compare savings associated with either the RTU Challenge unit or the advanced RTU controls retrofit. Therefore, BTO has asked PNNL to enhance the tool so building owners can compare energy and savings associated with this new class of products. This document provides the details of the enhancements that are required to support estimating energy savings from use of RTU challenge units or advanced controls on existing RTUs.
Dougan, A D; Blair, S
2006-11-14T23:59:59.000Z
LLNL turned in 5 Declaration Line Items (DLI's) in 2006. Of these, one was declared completed. We made some changes to streamline our process from 2005, used less money, time and fewer team members. This report is a description of what changes we made in 2006 and what we learned. Many of our core review team had changed from last year, including our Laboratory Director, the Facility safety and security representatives, our Division Leader, and the OPSEC Committee Chair. We were able to hand out an AP Manual to some of them, and briefed all newcomers to the AP process. We first went to the OPSEC Committee and explained what the Additional Protocol process would be for 2006 and solicited their help in locating declarable projects. We utilized the 'three questions' from the AP meeting last year. LLNL has no single place to locate all projects at the laboratory. We talked to Resource Managers and key Managers in the Energy and Environment Directorate and in the Nonproliferation Homeland and International Security Directorate to find applicable projects. We also talked to the Principal Investigators who had projects last year. We reviewed a list of CRADA's and LDRD projects given to us by the Laboratory Site Office. Talking to the PI's proved difficult because of vacation or travel schedules. We were never able to locate one PI in town. Fortunately, collateral information allowed us to screen out his project. We had no problems in downloading new versions of the DWA and DDA. It was helpful for both Steve Blair and Arden Dougan to have write privileges. During the time we were working on the project, we had to tag-team the work to allow for travel and vacation schedules. We had some difficulty locating an 'activities block' in the software. This was mentioned as something we needed to fix from our 2005 declaration. Evidently the Activities Block has been removed from the current version of the software. We also had trouble finding the DLI Detail Report, which we included in our signature process last year. This report had been inadvertently omitted from the version of the software we used. We typed our own version of the Detail Report and the package was sent to signature. The final software was not available in time to include the DLI Report. We streamlined our review process for the Technical and Security Reviews by sending one letter to each entity instead of getting separate approvals from the subordinates, then getting an approval from the lead reviewer. The Review process took 20 days, far shorter than the 6 weeks it required last year. It will be difficult to shorten the process much more. One of our projects had associated laboratory work at NIF. This required many discussions with NIF management during the review process and before their paperwork came to them for signature since they were not aware of the Additional Protocol.
TOUSCHEK LIFETIME CALCULATIONS AND SIMULATIONS FOR NSLS-II
MONTAG,C.; BENGTSSON, J.; NASH, B.
2007-06-25T23:59:59.000Z
The beam lifetime in most medium energy synchrotron radiation sources is limited by the Touschek effect, which describes the momentum transfer from the transverse into the longitudinal direction due to binary collisions between electrons. While an analytical formula exists to calculate the resulting lifetime, the actual momentum acceptance necessary to perform this calculation can only be determined by tracking. This is especially the case in the presence of small vertical apertures at insertion devices. In this case, nonlinear betatron coupling leads to beam losses at these vertical aperture restrictions. In addition, a realistic model of the storage ring is necessary for calculation of equilibrium beam sizes (particularly in the vertical direction) which are important for a self-consistent lifetime calculation.
DENSITY OF STATES CALCULATIONS FOR CARBON
Adler, Joan
DENSITY OF STATES CALCULATIONS FOR CARBON ALLOTROPES AND MIXTURES EDUARDO WARSZAWSKI #12;#12;DENSITY OF STATES CALCULATIONS FOR CARBON ALLOTROPES AND MIXTURES Research Thesis Submitted in Partial;#12;Contents Abstract xiii 1 Introduction 1 1.1 Carbon allotropes
RIT General Education Student Learning Outcomes July 2011 Rochester Institute of Technology
Salvaggio, Carl
accepted scholarly methods and properly acknowledge sources of information Ethical, Social, and GlobalRIT General Education Student Learning Outcomes July 2011 Rochester Institute of Technology General Education Student Learning Outcomes Updated July 2011 Communication Express oneself effectively in common
Henson, Harold Alonso
2014-07-29T23:59:59.000Z
The purpose of this qualitative study was to understand how learning is facilitated in a dental hygiene clinical continuing education course designed using Kolb’s experiential learning model. This study assessed the effectiveness of an experiential...
Application of functional learning to ATPG and design verification for combinational circuits
Mukherjee, Rajarshim
1994-01-01T23:59:59.000Z
Recently, learning-based techniques have been proposed as an efficient alternative to the traditional branch-and-bound techniques for test generation. The learning techniques have been shown to be extremely effective in ...
Quantum transport calculations using periodic boundaryconditions
Wang, Lin-Wang
2004-06-15T23:59:59.000Z
An efficient new method is presented to calculate the quantum transports using periodic boundary conditions. This method allows the use of conventional ground state ab initio programs without big changes. The computational effort is only a few times of a normal groundstate calculations, thus is makes accurate quantum transport calculations for large systems possible.
IN-DRIFT MICROBIAL COMMUNITIES MODEL VALIDATION CALCULATIONS
D.M. Jolley
2001-12-18T23:59:59.000Z
The objective and scope of this calculation is to create the appropriate parameter input for MING 1.0 (CSCI 30018 V1.0, CRWMS M&O 1998b) that will allow the testing of the results from the MING software code with both scientific measurements of microbial populations at the site and laboratory and with natural analogs to the site. This set of calculations provides results that will be used in model validation for the ''In-Drift Microbial Communities'' model (CRWMS M&O 2000) which is part of the Engineered Barrier System Department (EBS) process modeling effort that eventually will feed future Total System Performance Assessment (TSPA) models. This calculation is being produced to replace MING model validation output that is effected by the supersession of DTN M09909SPAMINGl.003 using its replacement DTN M00106SPAIDMO 1.034 so that the calculations currently found in the ''In-Drift Microbial Communities'' AMR (CRWMS M&O 2000) will be brought up to date. This set of calculations replaces the calculations contained in sections 6.7.2, 6.7.3 and Attachment I of CRWMS M&O (2000) As all of these calculations are created explicitly for model validation, the data qualification status of all inputs can be considered corroborative in accordance with AP-3.15Q. This work activity has been evaluated in accordance with the AP-2.21 procedure, ''Quality Determinations and Planning for Scientific, Engineering, and Regulatory Compliance Activities'', and is subject to QA controls (BSC 2001). The calculation is developed in accordance with the AP-3.12 procedure, Calculations, and prepared in accordance with the ''Technical Work Plan For EBS Department Modeling FY 01 Work Activities'' (BSC 200 1) which includes controls for the management of electronic data.
Hebbian Learning and Gradient Descent Learning Neural Computation : Lecture 5
Bullinaria, John
Hebbian Learning and Gradient Descent Learning Neural Computation : Lecture 5 © John A. Bullinaria, 2014 1. Hebbian Learning 2. Learning by Error Minimisation 3. Gradient Descent Learning 4. Deriving or persistently takes part in firing it, some growth process or metabolic change takes place on one or both cells
www.usask.ca/learning_charter OurLearningVision
Saskatchewan, University of
other institutions of learning. Our students undertake programs of many different types and durations types: Discovery,Knowledge, Integrity,Skills, and Citizenship. Core Learning Goals · Apply critical1 www.usask.ca/learning_charter OurLearningVision The University of Saskatchewan Learning Charter
Paul, A.C.
1981-08-03T23:59:59.000Z
ATA is a pulsed, 50 ns 10 KA, 50 MeV linear induction electron accelerator at LLNL. The ETA could be used as an injector for ATA. However the possibility of building a new injector gun for ATA, raised the question as to what changes from the ETA gun in electrode dimensions or potentials, if any, should be considered. In this report the EBQ code results for the four electrode configurations are reviewed and an attempt is made to determine the geometrical scaling laws appropriate to these ETA type gun geometries. Comparison of these scaling laws will be made to ETA operation. The characteristic operating curves for these geometries will also be presented and the effect of washer position determined. It will be shown that emittance growth will impose a limitation on beam current for a given anode potential before the virtual cathode limit is reached.
Image Change Detection via Ensemble Learning
Martin, Benjamin W [ORNL] [ORNL; Vatsavai, Raju [ORNL] [ORNL
2013-01-01T23:59:59.000Z
The concept of geographic change detection is relevant in many areas. Changes in geography can reveal much information about a particular location. For example, analysis of changes in geography can identify regions of population growth, change in land use, and potential environmental disturbance. A common way to perform change detection is to use a simple method such as differencing to detect regions of change. Though these techniques are simple, often the application of these techniques is very limited. Recently, use of machine learning methods such as neural networks for change detection has been explored with great success. In this work, we explore the use of ensemble learning methodologies for detecting changes in bitemporal synthetic aperture radar (SAR) images. Ensemble learning uses a collection of weak machine learning classifiers to create a stronger classifier which has higher accuracy than the individual classifiers in the ensemble. The strength of the ensemble lies in the fact that the individual classifiers in the ensemble create a mixture of experts in which the final classification made by the ensemble classifier is calculated from the outputs of the individual classifiers. Our methodology leverages this aspect of ensemble learning by training collections of weak decision tree based classifiers to identify regions of change in SAR images collected of a region in the Staten Island, New York area during Hurricane Sandy. Preliminary studies show that the ensemble method has approximately 11.5% higher change detection accuracy than an individual classifier.
The effectiveness of computer-assisted instruction in a horticultural plant identification course
Corbett, Mona Rae
1992-01-01T23:59:59.000Z
the variables. The computer then organizes the information, performs rapid and accurate calculations, and produces results for the student. 14 Other instructional purposes include using computer applications designed to facilitate the management... it into a high school chemistry class. They found that, although CAI was not as effective in teaching chemistry, it was important for motivating the students to learn. In some instances some students "had to be restrained from running to the computer...
Benchmark calculations for elastic fermion-dimer scattering
Shahin Bour; H. -W. Hammer; Dean Lee; Ulf-G. Meißner
2012-06-08T23:59:59.000Z
We present continuum and lattice calculations for elastic scattering between a fermion and a bound dimer in the shallow binding limit. For the continuum calculation we use the Skorniakov-Ter-Martirosian (STM) integral equation to determine the scattering length and effective range parameter to high precision. For the lattice calculation we use the finite-volume method of L\\"uscher. We take into account topological finite-volume corrections to the dimer binding energy which depend on the momentum of the dimer. After subtracting these effects, we find from the lattice calculation kappa a_fd = 1.174(9) and kappa r_fd = -0.029(13). These results agree well with the continuum values kappa a_fd = 1.17907(1) and kappa r_fd = -0.0383(3) obtained from the STM equation. We discuss applications to cold atomic Fermi gases, deuteron-neutron scattering in the spin-quartet channel, and lattice calculations of scattering for nuclei and hadronic molecules at finite volume.
Calculation of size for bound-state constituents
Stanislaw D. Glazek
2014-06-01T23:59:59.000Z
Elements are given of a calculation that identifies the size of a proton in the Schroedinger equation for lepton-proton bound states, using the renormalization group procedure for effective particles (RGPEP) in quantum field theory, executed only up to the second order of expansion in powers of the coupling constant. Already in this crude approximation, the extraction of size of a proton from bound-state observables is found to depend on the lepton mass, so that the smaller the lepton mass the larger the proton size extracted from the same observable bound-state energy splitting. In comparison of Hydrogen and muon-proton bound-state dynamics, the crude calculation suggests that the difference between extracted proton sizes in these two cases can be a few percent. Such values would match the order of magnitude of currently discussed proton-size differences in leptonic atoms. Calculations using the RGPEP of higher order than second are required for a precise interpretation of the energy splittings in terms of the proton size in the Schroedinger equation. Such calculations should resolve the conceptual discrepancy between two conditions: that the renormalization group scale required for high accuracy calculations based on the Schroedinger equation is much smaller than the proton mass (on the order of a root of the product of reduced and average masses of constituents) and that the energy splittings due to the physical proton size can be interpreted ignoring corrections due to the effective nature of constituents in the Schr\\"odinger equation.
Machine Learning: Foundations and Algorithms
Ben-David, Shai
with accident prevention systems that are built using machine learning algorithms. Machine learning is also to us). Machine learning tools are concerned with endowing programs with the ability to "learn if the learning process succeeded or failed? The second goal of this book is to present several key machine
Oct. 12, 2005 QM/MM: What have we learned, where are we, and where
Truhlar, Donald G
1 Oct. 12, 2005 QM/MM: What have we learned, where are we, and where do we go from here? Hai Lin1/molecular mechanical (QM/MM) calculations, including their advantages and disadvantages. There is a special emphasis tests of QM/MM methods and summarize what we learn about QM/MM from these studies. We also discuss some
A Parallel Orbital-Updating Approach for Electronic Structure Calculations
Xiaoying Dai; Xingao Gong; Aihui Zhou; Jinwei Zhu
2014-11-05T23:59:59.000Z
In this paper, we propose an orbital iteration based parallel approach for electronic structure calculations. This approach is based on our understanding of the single-particle equations of independent particles that move in an effective potential. With this new approach, the solution of the single-particle equation is reduced to some solutions of independent linear algebraic systems and a small scale algebraic problem. It is demonstrated by our numerical experiments that this new approach is quite efficient for full-potential calculations for a class of molecular systems.
Travis, Jennifer Lynn
2014-03-04T23:59:59.000Z
analysis had two phases: propensity score matching to strategically trim the groups so they had similar distributions of starting characteristics, and logistic regression to estimate the intervention’s effect on binary variables representing course success...
Some Calculations for Cold Fusion Superheavy Elements
Zhong, X H; Ning, P Z
2004-01-01T23:59:59.000Z
The Q value and optimal exciting energy of the hypothetical superheavy nuclei in cold fusion reaction are calculated with relativistic mean field model and semiemperical shell model mass equation(SSME) and the validity of the two models is tested. The fusion barriers are also calculated with two different models and reasonable results are obtained. The calculations can give useful references for the experiments in the superheavy nuclei synthesized in cold fusion reactions.
Some Calculations for Cold Fusion Superheavy Elements
X. H. Zhong; L. Li; P. Z. Ning
2004-10-18T23:59:59.000Z
The Q value and optimal exciting energy of the hypothetical superheavy nuclei in cold fusion reaction are calculated with relativistic mean field model and semiemperical shell model mass equation(SSME) and the validity of the two models is tested. The fusion barriers are also calculated with two different models and reasonable results are obtained. The calculations can give useful references for the experiments in the superheavy nuclei synthesized in cold fusion reactions.
Scaling reinforcement learning to the unconstrained multi-agent domain
Palmer, Victor
2009-06-02T23:59:59.000Z
- MENT LEARNING . . . . . . . . . . . . . . . . . . . . . . . . . 76 A. Sample Complexity and Reinforcement Learning . . . . . . 78 B. Domain Knowledge and Fuzzy Rules . . . . . . . . . . . . 79 C. Potential Negative Effects of Added Domain Knowledge... . . 80 1. Derivation . . . . . . . . . . . . . . . . . . . . . . . . 80 2. Interpretation . . . . . . . . . . . . . . . . . . . . . . 84 D. Fuzzy Reward Shaping . . . . . . . . . . . . . . . . . . . . 86 E. Integrating Fuzzy Knowledge...
Essays on social learning, cooperation, asset markets and human capital
Best, James
2014-07-02T23:59:59.000Z
In the first chapter, I examine the effect of social learning on social norms of cooperation. To this end I develop an 'anti-social learning' game. This is a dynamic social dilemma in which all agents know how to cooperate ...
Learning Brain Connectivity of Alzheimer's Disease from Neuroimaging Data
Li, Jing
Learning Brain Connectivity of Alzheimer's Disease from Neuroimaging Data Shui Huang2 , Jing Li2 Recent advances in neuroimaging techniques provide great potentials for effective diagnosis of Alzheimer. In this paper, we consider the problem of learning functional brain connectivity from neuroimaging, which holds
The First Calculation of Fractional Jets
Daniele Bertolini; Jesse Thaler; Jonathan R. Walsh
2015-05-14T23:59:59.000Z
In collider physics, jet algorithms are a ubiquitous tool for clustering particles into discrete jet objects. Event shapes offer an alternative way to characterize jets, and one can define a jet multiplicity event shape, which can take on fractional values, using the framework of "jets without jets". In this paper, we perform the first analytic studies of fractional jet multiplicity $\\tilde{N}_{\\rm jet}$ in the context of $e^+e^-$ collisions. We use fixed-order QCD to understand the $\\tilde{N}_{\\rm jet}$ cross section at order $\\alpha_s^2$, and we introduce a candidate factorization theorem to capture certain higher-order effects. The resulting distributions have a hybrid jet algorithm/event shape behavior which agrees with parton shower Monte Carlo generators. The $\\tilde{N}_{\\rm jet}$ observable does not satisfy ordinary soft-collinear factorization, and the $\\tilde{N}_{\\rm jet}$ cross section exhibits a number of unique features, including the absence of collinear logarithms and the presence of soft logarithms that are purely non-global. Additionally, we find novel divergences connected to the energy sharing between emissions, which are reminiscent of rapidity divergences encountered in other applications. Given these interesting properties of fractional jet multiplicity, we advocate for future measurements and calculations of $\\tilde{N}_{\\rm jet}$ at hadron colliders like the LHC.
PEP-X IMPEDANCE AND INSTABILITY CALCULATIONS
Bane, K.L.F.; Lee, L.-Q.; Ng, C.; Stupakov, G.; au Wang, L.; Xiao, L.; /SLAC
2010-08-25T23:59:59.000Z
PEP-X, a next generation, ring-based light source is designed to run with beams of high current and low emittance. Important parameters are: energy 4.5 GeV, circumference 2.2 km, beam current 1.5 A, and horizontal and vertical emittances, 185 pm by 8 pm. In such a machine it is important that impedance driven instabilities not degrade the beam quality. In this report they study the strength of the impedance and its effects in PEP-X. For the present, lacking a detailed knowledge of the vacuum chamber shape, they create a straw man design comprising important vacuum chamber objects to be found in the ring, for which they then compute the wake functions. From the wake functions they generate an impedance budget and a pseudo-Green function wake representing the entire ring, which they, in turn, use for performing microwave instability calculations. In this report they, in addition, consider in PEP-X the transverse mode-coupling, multi-bunch transverse, and beam-ion instabilities.
Minimum Day Time Load Calculation and Screening
Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site
Distributed Generation Interconnection Collaborative (DGIC) "Minimum Day Time Load Calculation and Screening" Dora Nakafuji and Anthony Hong, Hawaiian Electric Co. Babak Enayati,...
Calculating Plutonium and Praseodymium Structural Transformations...
Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)
Calculating Plutonium and Praseodymium Structural Transformations A newly-developed hybrid computational method has computed, for the first time, plutonium's exotic crystal...
What is the GREET Fleet Footprint Calculator
fuels and advanced vehicles (AFVs). The Greenhouse gases, Regulated Emis- sions, and Energy use in Transportation (GREET) Fleet Foot- print Calculator can help fleets decide on...
Evaluation Of Chemical Geothermometers For Calculating Reservoir...
search OpenEI Reference LibraryAdd to library Conference Paper: Evaluation Of Chemical Geothermometers For Calculating Reservoir Temperatures At Nevada Geothermal Power...
SPREADSHEET DESCRIPTION DOCUMENT FOR SATURATION TEMPERATURE CALCULATION
JO J
2008-08-29T23:59:59.000Z
This document describes the methodology for determining the saturation temperature in waste tanks. The saturation temperature is used to calculate neutral buoyancy ratio.
Cooling airflow design calculations for UFAD
Bauman, Fred; Webster, Tom; Benedek, Corinne
2007-01-01T23:59:59.000Z
written permission. Cooling Airflow Design Calculations form) height. Table 2: Design cooling airflow performance fortool predictions of UFAD cooling airflow rates and associ-
reprinted from Learning through Multimedia
Boyer, Edmond
reprinted from Learning through Multimedia Roy D. Pea Institute for Research on Learning #12;Learning through Multimedia Roy D. Pea Institute for Research on writinguniteswritersandreaders.Society might come to regard multimedia literacy as essential as writing is today
Overview of TRAC-PD2 assessment calculations
Waterman, M E
1985-11-01T23:59:59.000Z
A summary of Transient Reactor Analysis Code Version PD2 (TRAC-PD2) calculations performed at the Idaho National Engineering Laboratory (INEL) is presented in this report as part of the US Nuclear Regulatory Commission's (NRCs) overall assessment program of TRAC-PD2. The calculated and measured parameters summarized in this report are break mass flow rate, primary coolant system pressure, reactor core flow rates, and fuel rod cladding temperatures. The data were obtained from seven tests that were performed at two test facilities. The tests were conducted to study the various aspects of cold leg break transients, including the effects of large and small beaks, and core reflood phenomena. User experience gained from the various calculations is also summarized. 42 figs., 10 tabs.
Observing motor learning produces somatosensory change Nicol F. Bernardi,1,2
Malfait, Nicole
Observing motor learning produces somatosensory change Nicolò F. Bernardi,1,2 Mohammad Darainy,1, Darainy M, Bricolo E, Ostry DJ. Observing motor learning produces somatosensory change. J Neurophysiol 110 of others has been shown to affect motor learning, but does it have effects on sensory systems as well
Multipole Electrostatics in Hydration Free Energy Calculations
Ponder, Jay
Multipole Electrostatics in Hydration Free Energy Calculations YUE SHI,1 CHUANJIE WU,2 JAY W Acceptance Ratio method. We have compared two approaches to derive the atomic multipoles from quantum mechanical calculations: one directly from the new distributed multipole analysis and the other involving
PVWatts (R) Calculator India (Fact Sheet)
Not Available
2014-01-01T23:59:59.000Z
The PVWatts (R) Calculator for India was released by the National Renewable Energy Laboratory in 2013. The online tool estimates electricity production and the monetary value of that production of grid-connected roof- or ground-mounted crystalline silicon photovoltaics systems based on a few simple inputs. This factsheet provides a broad overview of the PVWatts (R) Calculator for India.
Calculating Highly Oscillatory Integrals by Quadrature Methods
Thapa, Krishna 1989-
2012-04-24T23:59:59.000Z
are found by requiring Z b a m (x) sin(!x)dx = 2 +2X i= wim (xi) The calculation of the wi therefore hinges on calculating the moments R b a x nei!g(x)dx. Unlike traditional approximation methods, the accuracy of the function increases...
2004 NET SYSTEM POWER CALCULATION COMMISSIONREPORT
CALIFORNIA ENERGY COMMISSION 2004 NET SYSTEM POWER CALCULATION COMMISSIONREPORT April 2005 CEC-300 Adam Pan, Terry Ewing Principal Author David Ashuckian Manager Electricity Analysis Office Terry O, the Legislature directed the California Energy Commission (Energy Commission) to calculate and report annually
Tools for calculations in color space
Malin Sjodahl; Stefan Keppeler
2013-07-04T23:59:59.000Z
Both the higher energy and the initial state colored partons contribute to making exact calculations in QCD color space more important at the LHC than at its predecessors. This is applicable whether the method of assessing QCD is fixed order calculation, resummation, or parton showers. In this talk we discuss tools for tackling the problem of performing exact color summed calculations. We start with theoretical tools in the form of the (standard) trace bases and the orthogonal multiplet bases (for which a general method of construction was recently presented). Following this, we focus on two new packages for performing color structure calculations: one easy to use Mathematica package, ColorMath, and one C++ package, ColorFull, which is suitable for more demanding calculations, and for interfacing with event generators.
Benchmarking kinetic calculations of resistive wall mode stability
Berkery, J. W.; Sabbagh, S. A. [Department of Applied Physics and Applied Mathematics, Columbia University, New York, New York 10027 (United States)] [Department of Applied Physics and Applied Mathematics, Columbia University, New York, New York 10027 (United States); Liu, Y. Q. [Euratom/CCFE Fusion Association, Culham Science Centre, Abingdon OX14 3DB (United Kingdom)] [Euratom/CCFE Fusion Association, Culham Science Centre, Abingdon OX14 3DB (United Kingdom); Wang, Z. R.; Logan, N. C.; Park, J.-K.; Manickam, J. [Princeton Plasma Physics Laboratory, Princeton University, Princeton, New Jersey 08543 (United States)] [Princeton Plasma Physics Laboratory, Princeton University, Princeton, New Jersey 08543 (United States); Betti, R. [Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623 (United States)] [Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623 (United States)
2014-05-15T23:59:59.000Z
Validating the calculations of kinetic resistive wall mode (RWM) stability is important for confidently predicting RWM stable operating regions in ITER and other high performance tokamaks for disruption avoidance. Benchmarking the calculations of the Magnetohydrodynamic Resistive Spectrum—Kinetic (MARS-K) [Y. Liu et al., Phys. Plasmas 15, 112503 (2008)], Modification to Ideal Stability by Kinetic effects (MISK) [B. Hu et al., Phys. Plasmas 12, 057301 (2005)], and Perturbed Equilibrium Nonambipolar Transport (PENT) [N. Logan et al., Phys. Plasmas 20, 122507 (2013)] codes for two Solov'ev analytical equilibria and a projected ITER equilibrium has demonstrated good agreement between the codes. The important particle frequencies, the frequency resonance energy integral in which they are used, the marginally stable eigenfunctions, perturbed Lagrangians, and fluid growth rates are all generally consistent between the codes. The most important kinetic effect at low rotation is the resonance between the mode rotation and the trapped thermal particle's precession drift, and MARS-K, MISK, and PENT show good agreement in this term. The different ways the rational surface contribution was treated historically in the codes is identified as a source of disagreement in the bounce and transit resonance terms at higher plasma rotation. Calculations from all of the codes support the present understanding that RWM stability can be increased by kinetic effects at low rotation through precession drift resonance and at high rotation by bounce and transit resonances, while intermediate rotation can remain susceptible to instability. The applicability of benchmarked kinetic stability calculations to experimental results is demonstrated by the prediction of MISK calculations of near marginal growth rates for experimental marginal stability points from the National Spherical Torus Experiment (NSTX) [M. Ono et al., Nucl. Fusion 40, 557 (2000)].
Distance learning meets Open Source Future-oriented Distance Learning
Paris-Sud XI, Université de
-learning on college level. One of the main problems is that study material as well as concepts have to be transformed component of the Open Source movement. Key words: distance learning, open source 1. INTRODUCTORY REMARKS of each semester. 2. THE CORE PROBLEM WHEN USING E-LEARNING-TOOLS IN DISTANCE LEARNING Most people
Learning Strategies for Vocabulary Development 105 Learning Strategies for
Chaudhuri, Sanjay
of success (Gu, 1994, 2003a; Moir & Nation, 2002). Largely two types of learning outcome measures have beenLearning Strategies for Vocabulary Development 105 Learning Strategies for Vocabulary Development of changes in vocabulary learning strategies and how these changes are related to vocabulary development. One
Perceptual learning: learning to see Dov Sagi and David Tanne
Sagi, Dov
the existence of two types of learning, fast (binocular) and slow (monocular). The slow phase requiresPerceptual learning: learning to see Dov Sagi and David Tanne The Weizmann Institute of Science, Rehovot, Israel Perceptual learning in vision has been found to be highly specific for simple stimulus
Learning During Stressful Times Tracey J. Shors
Shors, Tracey J.
profound effects on our cognitive and motor abilities, from those that could be construed as adaptive be that stress impairs learning--or does it? In this review, I describe some basic trends in studies that have; Seligman and Maier 1967). Those that were exposed to the same amount of shock, but had control over it
Do tangible interfaces enhance learning? Paul Marshall
Do tangible interfaces enhance learning? Paul Marshall Department of Computing, Open University interfaces has focused primarily on the production of descriptive frameworks. While this work has been, it provides little guidance on the cognitive or social effects of using one type of interface or another
Improving The Generalization Performance Of The MCE/GPD Learning
Shimodaira, Hiroshi; Rokui, Jun; Nakai, Mitsuru
A novel method to prevent the over-fitting effect and improve the generalization performance of the Minimum Classification Error (MCE) / Generalized Probabilistic Descent (GPD) learning is proposed. The MCE/GPD method, ...
Calculation of external dose from distributed source
Kocher, D.C.
1986-01-01T23:59:59.000Z
This paper discusses a relatively simple calculational method, called the point kernel method (Fo68), for estimating external dose from distributed sources that emit photon or electron radiations. The principles of the point kernel method are emphasized, rather than the presentation of extensive sets of calculations or tables of numerical results. A few calculations are presented for simple source geometries as illustrations of the method, and references and descriptions are provided for other caluclations in the literature. This paper also describes exposure situations for which the point kernel method is not appropriate and other, more complex, methods must be used, but these methods are not discussed in any detail.
Assessment of seismic margin calculation methods
Kennedy, R.P.; Murray, R.C.; Ravindra, M.K.; Reed, J.W.; Stevenson, J.D.
1989-03-01T23:59:59.000Z
Seismic margin review of nuclear power plants requires that the High Confidence of Low Probability of Failure (HCLPF) capacity be calculated for certain components. The candidate methods for calculating the HCLPF capacity as recommended by the Expert Panel on Quantification of Seismic Margins are the Conservative Deterministic Failure Margin (CDFM) method and the Fragility Analysis (FA) method. The present study evaluated these two methods using some representative components in order to provide further guidance in conducting seismic margin reviews. It is concluded that either of the two methods could be used for calculating HCLPF capacities. 21 refs., 9 figs., 6 tabs.
Cluster-model calculations of exotic decays from heavy nuclei
Buck, B.; Merchant, A.C.
1989-05-01T23:59:59.000Z
A cluster model employing a local, effective cluster-core potential is used to investigate exotic decay from heavy nuclei as a quantum tunneling phenomenon within a semiclassical approximation. Excellent agreement with all reported experimental measurements of the decay widths for /sup 14/C and /sup 24/Ne emission is obtained. As an added bonus, the width for alpha particle emission from /sup 212/Po is also calculated in good agreement with experiment.
Transport calculation of dilepton production at ultrarelativistic energies
C. Ernst; S. A. Bass; S. Soff; H. Stöcker; W. Greiner
1999-07-30T23:59:59.000Z
Dilepton spectra are calculated within the microscopic transport model UrQMD and compared to data from the CERES experiment. The invariant mass spectra in the region 300 MeV < M < 600 MeV depend strongly on the mass dependence of the $\\rho$ meson decay width which is not sufficiently determined by the Vector Meson Dominance model. A consistent explanation of both the recent Pb+Au data and the proton induced data can be given without additional medium effects.
Time series association learning
Papcun, George J. (Santa Fe, NM)
1995-01-01T23:59:59.000Z
An acoustic input is recognized from inferred articulatory movements output by a learned relationship between training acoustic waveforms and articulatory movements. The inferred movements are compared with template patterns prepared from training movements when the relationship was learned to regenerate an acoustic recognition. In a preferred embodiment, the acoustic articulatory relationships are learned by a neural network. Subsequent input acoustic patterns then generate the inferred articulatory movements for use with the templates. Articulatory movement data may be supplemented with characteristic acoustic information, e.g. relative power and high frequency data, to improve template recognition.
BLENDED AND ONLINE LEARNING IN
Ellis, Randy
) "Flipped classroom" - focus on active learning and enhanced student engagement in the classroom #12;First dissatisfied with student learning experience #12;Blended Learning Initiative Large, first-year courses student engagement improve student learning outcomes improve knowledge retention #12;Framework for Blended
FACULTY GUIDE Service-Learning
Massachusetts at Lowell, University of
?.............................................................. 5 Benefits of Service-Learning..................................... 5 Types of Experiential LearningFACULTY GUIDE to Service-Learning University of Massachuse s Lowell 20132014 #12;2 WELCOME Dear Colleague, Thank you for taking the time to read this introductory guide to service- learning
On the Sensitivity of ?/? Prediction to Dose Calculation Methodology in Prostate Brachytherapy
Afsharpour, Hossein [Centre de Recherche sur le Cancer, Université Laval and Département de Radio-Oncologie, Centre Hospitalier Universitaire de Québec, Québec, QC (Canada); Centre Intégré de Cancérologie de la Montérégie, Hôpital Charles-LeMoyne, Greenfield Park, QC (Canada); Walsh, Sean [Department of Radiation Oncology Maastricht Radiation Oncology (MAASTRO), GROW, University Hospital Maastricht, Maastricht (Netherlands); Gray Institute for Radiation Oncology and Biology, The University of Oxford, The United Kingdom (United Kingdom); Collins Fekete, Charles-Antoine; Vigneault, Eric [Centre de Recherche sur le Cancer, Université Laval and Département de Radio-Oncologie, Centre Hospitalier Universitaire de Québec, Québec, QC (Canada); Verhaegen, Frank [Department of Radiation Oncology Maastricht Radiation Oncology (MAASTRO), GROW, University Hospital Maastricht, Maastricht (Netherlands); Medical Physics Unit, Department of Oncology, McGill University, Montréal, Québec (Canada); Beaulieu, Luc, E-mail: Luc.Beaulieu@phy.ulaval.ca [Centre de Recherche sur le Cancer, Université Laval and Département de Radio-Oncologie, Centre Hospitalier Universitaire de Québec, Québec, QC (Canada)
2014-02-01T23:59:59.000Z
Purpose: To study the relationship between the accuracy of the dose calculation in brachytherapy and the estimations of the radiosensitivity parameter, ?/?, for prostate cancer. Methods and Materials: In this study, Monte Carlo methods and more specifically the code ALGEBRA was used to produce accurate dose calculations in the case of prostate brachytherapy. Equivalent uniform biologically effective dose was calculated for these dose distributions and was used in an iso-effectiveness relationship with external beam radiation therapy. Results: By considering different levels of detail in the calculations, the estimation for the ?/? parameter varied from 1.9 to 6.3 Gy, compared with a value of 3.0 Gy suggested by the American Association of Physicists in Medicine Task Group 137. Conclusions: Large variations of the ?/? show the sensitivity of this parameter to dose calculation modality. The use of accurate dose calculation engines is critical for better evaluating the biological outcomes of treatments.
INDIRECT COST CALCULATION [IN REVERSE] YOU WANT TO CALCULATE THE DIRECT COSTS
Finley Jr., Russell L.
INDIRECT COST CALCULATION [IN REVERSE] YOU WANT TO CALCULATE THE DIRECT COSTS YOU KNOW WHAT THE TUITION, STIPEND AND EQUIPMENT COSTS ARE YOU KNOW WHAT THE TOTAL COST IS CALCULATION IS USING THE 2010 FED F&A RATE FOR WSU OF 52% (.52) [ DIRECT COST TUITION STIPEND EQUIPMENT] (.52 ) + DIRECT
NREL: Energy Analysis - Levelized Cost of Energy Calculator
Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)
Useful Life Land Use by System Technology LCOE Calculator Simple Levelized Cost of Energy (sLCOE) Calculator (BETA) Simple Levelized Cost of Energy Calculator Financial...
HYDRAULIC CALCULATIONS FOR A MODIFIED IN-SITU RETORT
Hall, W.G.
2012-01-01T23:59:59.000Z
LBL-1 0431 UC-91 HYDRAULIC CALCULATIONS FOR A MODIFIED IN-REFERENCES • . • • • • . , . HYDRAULIC CALCULATIONS FOR ACalifomia. LBL-10431 HYDRAULIC CALCULATIONS FOR A MODIFIED
Design Calculations For APS Safety Shutters
Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)
computer program MCNPX 1 to verify the guidelines set forth previously for the APS safety shutters 2. The original shutter design calculations were carried out using the EGS4...
Essential Value, Pmax, and Omax Automated Calculator
Kaplan, Brent A.; Reed, Derek D.
2014-08-21T23:59:59.000Z
Behavioral economic measures of demand are often calculated in sophisticated spreadsheet programs. Unfortunately, no closed form models for exact pmax (point of unit elasticity) and omax (response output at pmax) can be ...
Calculation of rotordynamic forces on labyrinth seals
Hensel, Steve John
1986-01-01T23:59:59.000Z
CALCULATION OF ROTORDYNAMIC FORCES ON LABYRINTH SEALS A Thesis STEVE JOHN HENSEL Submitted to the Graduate College of Texas AkM University in partial fulfillment of the requirement for the degree of MASTER OF SCIENCE December 1986 Major... Subject: Mechanical Engineering CALCULATION OF ROTORDYNAMIC FORCES ON LABYRINTH SEALS A Thesis by STEVE JOHN HENSEL Approved as to style snd content by: David Rhode (Chairman of Committee) Erian Baskharone Leel and Garison (Member) +, gg, W. D...
Yerokhin, V A; Fritzsche, S
2014-01-01T23:59:59.000Z
Relativistic configuration-interaction calculations have been performed for the energy levels of the low-lying and core-excited states of beryllium-like argon, Ar$^{14+}$. These calculations include the one-loop QED effects as obtained by two different methods, the screening-potential approach as well as the model QED operator approach. The calculations are supplemented by a systematic estimation of uncertainties of theoretical predictions.
Perturbative calculation of quasinormal modes of AdS Schwarzschild black holes
Musiri, Suphot; Ness, Scott; Siopsis, George [Department of Physics, Srinakharinwirot University, Bangkok 10110 (Thailand); Department of Physics and Astronomy, The University of Tennessee, Knoxville, Tennessee 37996-1200 (United States)
2006-03-15T23:59:59.000Z
We calculate analytically quasinormal modes of AdS Schwarzschild black holes including first-order corrections. We consider massive scalar, gravitational and electromagnetic perturbations. Our results are in good agreement with numerical calculations. In the case of electromagnetic perturbations, ours is the first calculation to provide an analytic expression for quasinormal frequencies, because the effective potential vanishes at zeroth order. We show that the first-order correction is logarithmic.
Tedrake, Russell Louis
Creating autonomous robots that can learn to act in unpredictable environments has been a long-standing goal of robotics, artificial intelligence, and the cognitive sciences. In contrast, current commercially available ...
Experiments in service learning
Banzaert, Amy, 1976-
2006-01-01T23:59:59.000Z
Service learning, an educational method that involves the application of academic work to projects that benefit under-served communities, was explored in two complementary forms. First, the development of an alternative ...
Bayesian learning in bioinformatics
Gold, David L.
2009-05-15T23:59:59.000Z
, motivated from historical work in mathematical biology, for inference with real-time gene expression experiments, and fit with Bayesian methods. Simulation and case studies show that Bayesian methodologies show great promise to improve the way we learn...
Broader source: Energy.gov [DOE]
Through Executive Order 12999, the Computers for Learning Program was established to provide Federal agencies a quick and easy system for donating excess and surplus computer equipment to schools...
Reflecting to learn mathematics
Rachael Kenney
2013-08-09T23:59:59.000Z
meanings and supporting the process of inquiry needed for reflective practice ... help learners make connections and apply complex mathematical models and ..... by a Faculty Research Fellowship program through the Discovery Learning.
Calculation of Transition Dipole Moment in Fluorescent ProteinsTowards Efficient Energy Transfer
Baer, Roi
1S Calculation of Transition Dipole Moment in Fluorescent ProteinsTowards Efficient Energy University of Technology, P. O. Box 513, 5600 MB Eindhoven, The Netherlands Supporting Information Effect was calculated can be found in the 3rd column of the relevant entry in Table 4 in the text. c A full list
Chua, Kah Hean; Wee, Loo Kang; Tan, Ching
2015-01-01T23:59:59.000Z
Multimedia engages an audience through a combination of text, audio, still images, animation, video, or interactivity-based content formats. Along this vein, free platforms have been seen to allow budding enthusiasts to create multimedia content. For example, Google sites (Wee, 2012b) offer creative opportunities in website development that enable text insertion, still image, video and animation embedding, along with audio and hyper-interactive links to simulations (Christian & Esquembre, 2012; Wee, 2013; Wee, Goh, & Chew, 2013; Wee, Goh, & Lim, 2013; Wee, Lee, Chew, Wong, & Tan, 2015). This chapter focuses on the video aspect of multimedia, which can be positioned as a component to any effective self-paced on-line lesson that would be available anytime, anywhere via computer or mobile devices. The multimedia video approach aims to help users overcome barriers in creating engaging, effective and meaningful content (Barron & Darling-Hammond, 2008) for teaching and learning in an online envi...
Unsupervised Learning of Object Descriptors and Compositions
Ye, Xingyao
2012-01-01T23:59:59.000Z
Reported Experiments A New Experiment on Human Learning ofof previous experiments on human chunk learning, along withnew psychophysical experiment, where human observers learned
Formative Assessment, Equity, and Opportunity to Learn
Hilberg, Soleste
2012-01-01T23:59:59.000Z
inquiry focused on student learning, and to explore theirinquiry focused on student learning, and (c) how this workinquiry focused on student learning. Interrelatedly, there
Lessons Learned Database | Department of Energy
Office of Environmental Management (EM)
Lessons Learned Database Lessons Learned Database The DOE Corporate Lessons Learned Database provides a central clearinghouse that allows ready access to and communication about...
Hanson, Ruth Mary
2008-01-01T23:59:59.000Z
Questions surrounding the impact of feedback in response to learner error are of interest in the fields of both Second Language Acquisition (SLA) and Intelligent Computer-Assisted Language Learning (ICALL). Current ...
Improved Calculation of Thermal Fission Energy
Ma, X B; Wang, L Z; Chen, Y X; Cao, J
2013-01-01T23:59:59.000Z
Thermal fission energy is one of the basic parameters needed in the calculation of antineutrino flux for reactor neutrino experiments. It is useful to improve the precision of the thermal fission energy calculation for current and future reactor neutrino experiments, which are aimed at more precise determination of neutrino oscillation parameters. In this article, we give new values for thermal fission energies of some common thermal reactor fuel iso-topes, with improvements on two aspects. One is more recent input data acquired from updated nuclear databases. The other, which is unprecedented, is a consideration of the production yields of fission fragments from both thermal and fast incident neutrons for each of the four main fuel isotopes. The change in calculated antineutrino flux due to the new values of thermal fission energy is about 0.33%, and the uncertainties of the new values are about 30% smaller.
Dose calculations for severe LWR accident scenarios
Margulies, T.S.; Martin, J.A. Jr.
1984-05-01T23:59:59.000Z
This report presents a set of precalculated doses based on a set of postulated accident releases and intended for use in emergency planning and emergency response. Doses were calculated for the PWR (Pressurized Water Reactor) accident categories of the Reactor Safety Study (WASH-1400) using the CRAC (Calculations of Reactor Accident Consequences) code. Whole body and thyroid doses are presented for a selected set of weather cases. For each weather case these calculations were performed for various times and distances including three different dose pathways - cloud (plume) shine, ground shine and inhalation. During an emergency this information can be useful since it is immediately available for projecting offsite radiological doses based on reactor accident sequence information in the absence of plant measurements of emission rates (source terms). It can be used for emergency drill scenario development as well.
Numeric spectral radiation hydrodynamic calculations of supernova shock breakouts
Sapir, Nir; Halbertal, Dorri [Department of Particle Physics and Astrophysics, Weizmann Institute of Science, Rehovot 76100 (Israel)
2014-12-01T23:59:59.000Z
We present here an efficient numerical scheme for solving the non-relativistic one-dimensional radiation-hydrodynamics equations including inelastic Compton scattering, which is not included in most codes and is crucial for solving problems such as shock breakout. The devised code is applied to the problems of a steady-state planar radiation mediated shock (RMS) and RMS breakout from a stellar envelope. The results are in agreement with those of a previous work on shock breakout, in which Compton equilibrium between matter and radiation was assumed and the 'effective photon' approximation was used to describe the radiation spectrum. In particular, we show that the luminosity and its temporal dependence, the peak temperature at breakout, and the universal shape of the spectral fluence derived in this earlier work are all accurate. Although there is a discrepancy between the spectral calculations and the effective photon approximation due to the inaccuracy of the effective photon approximation estimate of the effective photon production rate, which grows with lower densities and higher velocities, the difference in peak temperature reaches only 30% for the most discrepant cases of fast shocks in blue supergiants. The presented model is exemplified by calculations for supernova 1987A, showing the detailed evolution of the burst spectrum. The incompatibility of the stellar envelope shock breakout model results with observed properties of X-ray flashes (XRFs) and the discrepancy between the predicted and observed rates of XRFs remain unexplained.
Modeling the spacing effect in sequential category Hongjing Lu
Yuille, Alan L.
are found not only in human learning, but also in various types of learning in other species, including ratsModeling the spacing effect in sequential category learning Hongjing Lu Department of Psychology@stat.ucla.edu Abstract We develop a Bayesian sequential model for category learning. The sequential model updates two
Heat Exchanger Support Bracket Design Calculations
Rucinski, Russ; /Fermilab
1995-01-12T23:59:59.000Z
This engineering note documents the design of the heat exchanger support brackets. The heat exchanger is roughly 40 feet long, 22 inches in diameter and weighs 6750 pounds. It will be mounted on two identical support brackets that are anchored to a concrete wall. The design calculations were done for one bracket supporting the full weight of the heat exchanger, rounded up to 6800 pounds. The design follows the American Institute of Steel Construction (AISC) Manual of steel construction, Eighth edition. All calculated stresses and loads on welds were below allowables.
Fully Automated Calculations in the complex MSSM
T. Hahn; S. Heinemeyer; F. von der Pahlen; H. Rzehak; C. Schappacher
2014-07-01T23:59:59.000Z
We review recent progress towards automated higher-order calculations in the MSSM with complex parameters (cMSSM). The consistent renormalization of all relevant sectors of the cMSSM and the inclusion into the FeynArts/FormCalc framework has recently been completed. Some example calculations applying this framework are briefly discussed. These include two-loop corrections to cMSSM Higgs boson masses as well as partial decay widths of electroweak supersymmetric particles decaying into a Higgs boson and another supersymmetric particle.
Calculation method for safe ?* in the LHC
Bruce, R; Herr, W; Wollmann, D
2011-01-01T23:59:59.000Z
One way of increasing the peak luminosity in the LHC is to decrease the beam size at the interaction points by squeezing to smaller values of ?*. The LHC is now in a regime where safety and stability determines the limit on ?*, as opposed to traditional optics limits. In this paper, we derive a calculation model to determine the safe ?*-values based on collimator settings and operational stability of the LHC. This model was used to calculate the settings for the LHC run in 2011. It was found that ?* could be decreased from 3.5 m to 1.5 m, which has now successfully been put into operation.
Quantum Monte Carlo Calculations of Light Nuclei Using Chiral Potentials
J. E. Lynn; J. Carlson; E. Epelbaum; S. Gandolfi; A. Gezerlis; A. Schwenk
2014-11-09T23:59:59.000Z
We present the first Green's function Monte Carlo calculations of light nuclei with nuclear interactions derived from chiral effective field theory up to next-to-next-to-leading order. Up to this order, the interactions can be constructed in a local form and are therefore amenable to quantum Monte Carlo calculations. We demonstrate a systematic improvement with each order for the binding energies of $A=3$ and $A=4$ systems. We also carry out the first few-body tests to study perturbative expansions of chiral potentials at different orders, finding that higher-order corrections are more perturbative for softer interactions. Our results confirm the necessity of a three-body force for correct reproduction of experimental binding energies and radii, and pave the way for studying few- and many-nucleon systems using quantum Monte Carlo methods with chiral interactions.
Mesoscale polycrystal calculations of damage in spallation in metals
Tonks, Davis L [Los Alamos National Laboratory; Bingert, John F [Los Alamos National Laboratory; Livescu, Veronica [Los Alamos National Laboratory; Luo, Shengnian [Los Alamos National Laboratory; Bronkhorst, C A [Los Alamos National Laboratory
2010-01-01T23:59:59.000Z
The goal of this project is to produce a damage model for spallation in metals informed by the polycrystalline grain structure at the mesoscale. Earlier damage models addressed the continuwn macroscale in which these effects were averaged out. In this work we focus on cross sections from recovered samples examined with EBSD (electron backscattered diffraction), which reveal crystal grain orientations and voids. We seek to understand the loading histories of specific sample regions by meshing up the crystal grain structure of these regions and simulating the stress, strain, and damage histories in our hydro code, FLAG. The stresses and strain histories are the fundamental drivers of damage and must be calculated. The calculated final damage structures are compared with those from the recovered samples to validate the simulations.
Shonder, John A [ORNL; Hughes, Patrick [ORNL; Thornton, Jeff W. [Thermal Energy Systems Specialists, Inc.
1997-08-01T23:59:59.000Z
Many opportunities exist for large-scale energy conservation projects in housing: military housing, federally-subsidized low-income housing, and planned communities (condominiums, townhomes, senior centers) to name a few. Energy savings performance contracting (ESPC) is now receiving greater attention, as a means to implement such projects. This paper proposes an improved method for prior (to construction) savings estimates for these projects. More accurate prior estimates reduce project risk, decrease financing costs, and help avoid post-construction legal disputes over performance contract baseline adjustments. The proposed approach to prior estimates is verified against data from Fort Polk, LA. In the course of evaluating the ESPC at Fort Polk, Louisiana, we have collected energy use data - both at the electrical feeder level and at the level of individual residences - which allowed us to develop calibrated engineering models which accurately predict pre-retrofit energy consumption. We believe that such calibrated models could be used to provide much more accurate estimates of energy savings in retrofit projects, particularly in cases where the energy consumption of large populations of housing can be captured on one or a few meters. The improved savings estimating approach described here is based on an engineering model calibrated to field-collected data from the pre-retrofit period. A dynamic model of pre-retrofit energy use was developed for all housing and non-housing loads on a complete electrical feeder at Fort Polk. The feeder serves 46 buildings containing a total of 200 individual apartments. Of the 46 buildings, there are three unique types, and among these types the only difference is compass orientation. The model included the heat transfer characteristics of the buildings, the pre-retrofit air source heat pump, a hot water consumption model and a profile for electrical use by lights and other appliances. Energy consumption for all 200 apartments was totaled, and by adjusting thermostat setpoints and outdoor air infiltration parameters, the models were matched to field-collected energy consumption data for the entire feeder. The energy conservation measures were then implemented in the calibrated model: the air source heat pumps were replaced by geothermal heat pumps (GHPs) with desuperheaters; hot water loads were reduced to account for the low-flow shower heads; and lighting loads were reduced to account for fixture delamping and replacement with compact fluorescent lights (CFLs). Our analysis of pre- and post-retrofit data (Shonder and Hughes, 1997) indicates that the retrofits have saved 30.3% of pre-retrofit electrical energy consumption on the feeder modeled in this paper. Using the method outlined, we have been able to predict this savings within 0.1% of its measured value, using only pre-construction energy consumption data, and data from one pilot test site. It is well-known that predictions of savings from energy conservation programs are often optimistic, especially in the case of residential retrofits. Fels and keating (1993) cite several examples of programs which achieved as little as 20% of the predicted energy savings. Factors which influence the sometimes large discrepancies between actual and predicted savings include changes in occupancy, take-back effects (in which more efficient system operation leads occupants to choose higher levels of comfort), and changes in base energy use (e.g. through purchase of additional appliances such as washing machines and clothes dryers). An even larger factor, perhaps, is the inaccuracy inherent in the engineering models (BLAST, DOE-2, etc.) commonly used to estimate building energy consumption, if these models are not first calibrated to site-monitored data. For example, prior estimates of base-wide savings from the Fort Polk ESPC were on the order of 40% of pre-retrofit electrical use; our analysis has shown the true savings for the entire project (which includes 16 separate electrical feeders) to be about 32%. It should be noted that the retrofits ca
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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:1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:5 TablesExports(Journal Article)41clothThe Bonneville Power AdministrationHawaii Electricity Profile 2013callYear 1Edwin M. McMillan About0/2002Effects of
Learning with online constraints : shifting concepts and active learning
Monteleoni, Claire E. (Claire Elizabeth), 1975-
2006-01-01T23:59:59.000Z
Many practical problems such as forecasting, real-time decision making, streaming data applications, and resource-constrained learning, can be modeled as learning with online constraints. This thesis is concerned with ...
Consanguine Calculations Input File: blood.in
California at Berkeley, University of
1 of 20 Problem A+ Consanguine Calculations Input File: blood.in Every person's blood has 2 markers in a particular ABO blood type for that person. Combination ABO Blood Type AA A AB AB AO A BB B BO B OO O Likewise, every person has two alleles for the blood Rh factor, represented by the characters + and -. Someone who
SCALE Sensitivity Calculations Using Contributon Theory
Rearden, Bradley T [ORNL] [ORNL; Perfetti, Chris [University of Michigan] [University of Michigan; Williams, Mark L [ORNL] [ORNL; Petrie Jr, Lester M [ORNL] [ORNL
2010-01-01T23:59:59.000Z
The SCALE TSUNAMI-3D sensitivity and uncertainty analysis sequence computes the sensitivity of k-eff to each constituent multigroup cross section using adjoint techniques with the KENO Monte Carlo codes. A new technique to simultaneously obtain the product of the forward and adjoint angular flux moments within a single Monte Carlo calculation has been developed and implemented in the SCALE TSUNAMI-3D analysis sequence. A new concept in Monte Carlo theory has been developed for this work, an eigenvalue contributon estimator, which is an extension of previously developed fixed-source contributon estimators. A contributon is a particle for which the forward solution is accumulated, and its importance to the response, which is equivalent to the adjoint solution, is simultaneously accumulated. Thus, the contributon is a particle coupled with its contribution to the response, in this case keff. As implemented in SCALE, the contributon provides the importance of a particle exiting at any energy or direction for each location, energy and direction at which the forward flux solution is sampled. Although currently implemented for eigenvalue calculations in multigroup mode in KENO, this technique is directly applicable to continuous-energy calculations for many other responses such as fixed-source sensitivity analysis and quantification of reactor kinetics parameters. This paper provides the physical bases of eigenvalue contributon theory, provides details of implementation into TSUNAMI-3D, and provides results of sample calculations.
Spin Contamination in Inorganic Chemistry Calculations
Schlegel, H. Bernhard
R EVISED PAG E PR O O FS ia617 Spin Contamination in Inorganic Chemistry Calculations Jason L . In such cases, 0 is said to be spin contaminated owing to incorporation of higher spin state character of IronSulfur ia618 Clusters). It is important to note that while spin-contaminated and broken
Improved Calculation of Thermal Fission Energy
X. B. Ma; W. L. Zhong; L. Z. Wang; Y. X. Chen; J. Cao
2013-06-30T23:59:59.000Z
Thermal fission energy is one of the basic parameters needed in the calculation of antineutrino flux for reactor neutrino experiments. It is useful to improve the precision of the thermal fission energy calculation for current and future reactor neutrino experiments, which are aimed at more precise determination of neutrino oscillation parameters. In this article, we give new values for thermal fission energies of some common thermal reactor fuel isotopes, with improvements on three aspects. One is more recent input data acquired from updated nuclear databases. the second one is a consideration of the production yields of fission fragments from both thermal and fast incident neutrons for each of the four main fuel isotopes. The last one is more carefully calculation of the average energy taken away by antineutrinos in thermal fission with the comparison of antineutrino spectrum from different models. The change in calculated antineutrino flux due to the new values of thermal fission energy is about 0.32%, and the uncertainties of the new values are about 50% smaller.
URANIUM MILL TAILINGS RADON FLUX CALCULATIONS
URANIUM MILL TAILINGS RADON FLUX CALCULATIONS PIÑON RIDGE PROJECT MONTROSE COUNTY, COLORADO an administration building, a 17-acre mill, a 30.5-acre tailings cell with phased expansion capacity to 91.5 acres, a 40-acre evaporation pond area with an expansion capacity to 80 acres, an approximately 6-acre ore
Calculation of a coaxial microwave torch
Gritsinin, S. I.; Kossyi, I. A. [Russian Academy of Sciences, Prokhorov Institute of General Physics (Russian Federation); Kulumbaev, E. B.; Lelevkin, V. M. [Kyrgyz-Russian Slavic University (Kyrgyzstan)
2006-10-15T23:59:59.000Z
Parameters of an equilibrium microwave discharge in an atmospheric-pressure argon flow in a coaxial waveguide with a truncated inner electrode are calculated numerically by using a self-consistent two-dimensional MHD model. The results obtained agree satisfactorily with the experimental data.
CALCULATING THE CARBON FOOTPRINT SUPPLY CHAIN FOR
Su, Xiao
CALCULATING THE CARBON FOOTPRINT SUPPLY CHAIN FOR THE SEMICONDUCTOR INDUSTRY By: Yasser Dessouky #12;Carbon Footprint Supply Chain Carbon Trust defines carbon footprint of a supply chain as follows: "The carbon footprint of a product is the carbon dioxide emitted across the supply chain for a single
Oberseminar -ICP Temperature Calculation for Tribological
Harting, Jens
and passing to third parties. 0 #12;Overview Where to calculate the heat: diesel injection pump First focus in the steel in the meantime of one step It takes some rotations to have the heat penetrate the whole pump even in the event of industrial property rights. We reserve all rights of disposal such as copying
PIC : Protein Interaction Calculator HELP AND GUIDELINES
Srinivasan, N.
PIC : Protein Interaction Calculator HELP AND GUIDELINES CONTENTS 1. Overview 2. Method 3. Input 4 (PIC) is a server which, given the coordinate set of threedimensional structure of a protein colored by PIC programmes can be downloaded and conveniently displayed with structural viewers
2002CALIFORNIAPOWERMIX 2002 NET SYSTEM POWER CALCULATION
CALIFORNIA ENERGY COMMISSION APRIL 2003 300-03-002 2002CALIFORNIAPOWERMIX 2002 NET SYSTEM POWER CALCULATION Gray Davis, Governor #12;CALIFORNIA ENERGY COMMISSION William J. Keese Chairman Commissioners Adam Pan, Ron Wetherall Principal Authors David Ashuckian Manager Electricity Analysis Office Terry O
Student Success Effective Seminar Participation
See over Student Success Effective Seminar Participation Seminars are effective learning experiences as students learn more from talking and listening to each other than they do from listening to keep the conversation going, focused, and inclusive. Confidentiality and Respectful Behaviour o
Adding a Learning Module -1 Adding a Learning Module
Cui, Yan
Items focused on a specific subject that students can navigate at their own pace. For example or No for Enforce Sequential Viewing for the Learning Module. Selecting Yes will require students to view the Learning Module within a Table of Contents, which students can also use to navigate through the Learning
Calculation of Kinetics Parameters for the NBSR
Hanson A. L.; Diamond D.
2012-03-06T23:59:59.000Z
The delayed neutron fraction and prompt neutron lifetime have been calculated at different times in the fuel cycle for the NBSR when fueled with both high-enriched uranium (HEU) and low-enriched uranium (LEU) fuel. The best-estimate values for both the delayed neutron fraction and the prompt neutron lifetime are the result of calculations using MCNP5-1.60 with the most recent ENDFB-VII evaluations. The best-estimate values for the total delayed neutron fraction from fission products are 0.00665 and 0.00661 for the HEU fueled core at startup and end-of-cycle, respectively. For the LEU fuel the best estimate values are 0.00650 and 0.00648 at startup and end-of-cycle, respectively. The present recommendations for the delayed neutron fractions from fission products are smaller than the value reported previously of 0.00726 for the HEU fuel. The best-estimate values for the contribution from photoneutrons will remain as 0.000316, independent of the fuel or time in the cycle.The values of the prompt neutron lifetime as calculated with MCNP5-1.60 are compared to values calculated with two other independent methods and the results are in reasonable agreement with each other. The recommended, conservative values of the neutron lifetime for the HEU fuel are 650 {micro}s and 750 {micro}s for the startup and end-of-cycle conditions, respectively. For LEU fuel the recommended, conservative values are 600 {micro}s and 700 {micro}s for the startup and end-of-cycle conditions, respectively. In all three calculations, the prompt neutron lifetime was determined to be longer for the end-of-cycle equilibrium condition when compared to the startup condition. The results of the three analyses were in agreement that the LEU fuel will exhibit a shorter prompt neutron lifetime when compared to the HEU fuel.
Language and Learning in the Digital Age
Rama, Paul S.
2012-01-01T23:59:59.000Z
projects examine the types of learning that occur thoughis even possible, this type of learning into schools? To
Discrimination learning in horses
Yeates, B. F
1976-01-01T23:59:59.000Z
Science DISCRIMINATION LEARNING IN HORSES A Thesis by B. F. Yeates Approved as to styIe aod content by: ~C airman oi . , Ommlttec. g ~liemoer Pe comber 1 S76 ABSTRACT Discrimination Learning in Horses (December 1976) B. F. Yeates, B. S. , Texas... was subsequently given 7 days discrimination training on each of' three different stimuli in three successive periods. Ti percert correct response" vtas used to measure period, stimuli and horse efforts. iiean percentages for the three periods were 42? 51. 9...
Veloso, Manuela M.
into general problem solving as a method of learning at the strategy level to solve problems more effectively. Learning occurs by the generation and replay of annotated deriva- tional traces of problem solving episodes reasoner compiles complete problem solving cases that are used to guide future similar situations. Learned
How Minds Work Memories and Learning
Memphis, University of
& Learning 7 Types of Human Learning Requiring Distinct Mechanisms · Perceptual learning Identify1 How Minds Work Memories and Learning Stan Franklin Computer Science Division & Institute for Intelligent Systems The University of Memphis #12;How Minds Work: Memory & Learning 2 Human Learning
Evolution, Learning & Information Brian Skyrms
Barrett, Jeffrey A.
SIGNALS Evolution, Learning & Information Brian Skyrms #12;Signals: Evolution, Learning. The Flow of Information 4. Evolution 5. Evolution in Lewis Signaling Games 6. Deception 7. Learning 8 of evolution by differential reproduction and natural variation. In particular we use models of replicator
Century Learning through Apple Technology
21st Century Learning through Apple Technology July 4 5, 2013 This exciting institute will appeal to educators who wish to enhance their teaching in support of 21st century learning using Apple technology. This institute begins with a keynote address that looks at how new technologies can enhance 21st century learning
Applied inductive learning Louis Wehenkel
Wehenkel, Louis
problems 20 2.3.1 Classes 20 2.3.2 Types of classi cation problems 20 2.3.3 Learning and test sets 21 2Applied inductive learning Louis Wehenkel University of Li`ege Faculty of Applied Sciences Course;#12;APPLIED INDUCTIVE LEARNING COURSE NOTES : OCTOBER 2000 LOUIS A. WEHENKEL University of Li#12;ege
Applied inductive learning Louis Wehenkel
Wehenkel, Louis
.3.2 Types of classification problems 20 2.3.3 Learning and test sets 21 2.3.4 Decision or classificationApplied inductive learning Louis Wehenkel University of Liâ??ege Faculty of Applied Sciences Courseâ??e'' #12; #12; APPLIED INDUCTIVE LEARNING COURSE NOTES : OCTOBER 2000 LOUIS A. WEHENKEL University of Li
WIPP Benchmark calculations with the large strain SPECTROM codes
Callahan, G.D.; DeVries, K.L. [RE/SPEC, Inc., Rapid City, SD (United States)
1995-08-01T23:59:59.000Z
This report provides calculational results from the updated Lagrangian structural finite-element programs SPECTROM-32 and SPECTROM-333 for the purpose of qualifying these codes to perform analyses of structural situations in the Waste Isolation Pilot Plant (WIPP). Results are presented for the Second WIPP Benchmark (Benchmark II) Problems and for a simplified heated room problem used in a parallel design calculation study. The Benchmark II problems consist of an isothermal room problem and a heated room problem. The stratigraphy involves 27 distinct geologic layers including ten clay seams of which four are modeled as frictionless sliding interfaces. The analyses of the Benchmark II problems consider a 10-year simulation period. The evaluation of nine structural codes used in the Benchmark II problems shows that inclusion of finite-strain effects is not as significant as observed for the simplified heated room problem, and a variety of finite-strain and small-strain formulations produced similar results. The simplified heated room problem provides stratigraphic complexity equivalent to the Benchmark II problems but neglects sliding along the clay seams. The simplified heated problem does, however, provide a calculational check case where the small strain-formulation produced room closures about 20 percent greater than those obtained using finite-strain formulations. A discussion is given of each of the solved problems, and the computational results are compared with available published results. In general, the results of the two SPECTROM large strain codes compare favorably with results from other codes used to solve the problems.
Exact-to-precision generalized perturbation for neutron transport calculation
Wang, C.; Abdel-Khalik, H. S. [North Carolina State University, 911 Oval Dr., Centennial Campus, Raleigh, NC 27606 (United States)
2013-07-01T23:59:59.000Z
This manuscript extends the exact-to-precision generalized perturbation theory (E{sub P}GPT), introduced previously, to neutron transport calculation whereby previous developments focused on neutron diffusion calculation only. The E{sub P}GPT collectively denotes new developments in generalized perturbation theory (GPT) that place premium on computational efficiency and defendable accuracy in order to render GPT a standard analysis tool in routine design and safety reactor calculations. EPGPT constructs a surrogate model with quantifiable accuracy which can replace the original neutron transport model for subsequent engineering analysis, e.g. functionalization of the homogenized few-group cross sections in terms of various core conditions, sensitivity analysis and uncertainty quantification. This is achieved by reducing the effective dimensionality of the state variable (i.e. neutron angular flux) by projection onto an active subspace. Confining the state variations to the active subspace allows one to construct a small number of what is referred to as the 'active' responses which are solely dependent on the physics model rather than on the responses of interest, the number of input parameters, or the number of points in the state phase space. (authors)
HP-41 Calculates Dykstra-Parsons permeability
Bixler, B.
1983-07-01T23:59:59.000Z
A new program for the HP-41 programmable calculator has been written which will calculate the often used Dykstra-Parsons permeability variation factor, V. No longer must numerous individual permeability values be plotted on log probability paper as a first step in determining V. Input is simply these same permeability values selected at equal spacing along the interval in question. For most core analysis this spacing will be 1 ft. This program is labeled ''KVAR'' (for permeability variation) and is listed here, along with its bar code for those with optical wands. It requires only nine registers for program storage (since it uses HP built-in statistical functions) and eight registers for data storage. Also, it can be stored on one track of the standard two-track magnetic card. Data entry is terminated by entering ''O''. Lastly, it will run with or without a printer.
Validation of Dose Calculation Codes for Clearance
Menon, S.; Wirendal, B.; Bjerler, J.; Studsvik; Teunckens, L.
2003-02-27T23:59:59.000Z
Various international and national bodies such as the International Atomic Energy Agency, the European Commission, the US Nuclear Regulatory Commission have put forward proposals or guidance documents to regulate the ''clearance'' from regulatory control of very low level radioactive material, in order to allow its recycling as a material management practice. All these proposals are based on predicted scenarios for subsequent utilization of the released materials. The calculation models used in these scenarios tend to utilize conservative data regarding exposure times and dose uptake as well as other assumptions as a safeguard against uncertainties. None of these models has ever been validated by comparison with the actual real life practice of recycling. An international project was organized in order to validate some of the assumptions made in these calculation models, and, thereby, better assess the radiological consequences of recycling on a practical large scale.
Interruption Cost Estimate Calculator | Open Energy Information
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on DeliciousPlasmaP aCentrothermDepew,Independent EnergyInternational Maritime LawInterruption Cost Estimate Calculator
Diffusion Simulation and Lifetime Calculation at RHIC
Abreu,N.P.; Fischer, W.; Luo, Y.; Robert-Demolaize, G.
2009-01-02T23:59:59.000Z
The beam lifetime is an important parameter for any storage ring. For protons in RHIC it is dominated by the non-linear nature of the head-on collisions that causes the particles to diffuse outside the stable area in phase space. In this report we show results from diffusion simulation and lifetime calculation for the 2006 and 2008 polarized proton runs in RHIC.
Economic Calculations for the ASHRAE Handbook
Haberl, J. S.
1993-01-01T23:59:59.000Z
ESL-TR-93/04-07 Economic Calculations for the ASHRAE Handbook Jeff S. Haberl Dept. of Mechanical Engineering Texas A&M University College Station, TX 77843-3123 For any proposed capital investment, the capital and interest costs, salvage costs... Office, Washington, D.C. BIBLIOGRAPHY ASTM. 1985. Definition of terms relating to building economics. ASTM Standard E933-S5. ASTM, Philadelphia. Kurtz, M. 1984. Handbook of engineering economics: A guide for engineers, technicians, scientists and managers...
Free Energy Calculation in MD Simulation
Nielsen, Steven O.
Free Energy Calculation in MD Simulation #12;Basic Thermodynamics Helmoholtz free energy A = U TS + i Ni dA = wrev (reversible, const N V T) eq (22.9) McQuarrie & Simon Gibbs free energy G = U;Implication of Free Energy A B Keq = [A]/[B] Keq = exp (-G0 /RT) G0 = -RT ln Keq G = G0 + RT ln Q G > 0
Software Carpentry: Lessons Learned
Greg Wilson
2014-01-29T23:59:59.000Z
Over the last 15 years, Software Carpentry has evolved from a week-long training course at the US national laboratories into a worldwide volunteer effort to raise standards in scientific computing. This article explains what we have learned along the way the challenges we now face, and our plans for the future.
Agriculture-related radiation dose calculations
Furr, J.M.; Mayberry, J.J.; Waite, D.A.
1987-10-01T23:59:59.000Z
Estimates of radiation dose to the public must be made at each stage in the identification and qualification process leading to siting a high-level nuclear waste repository. Specifically considering the ingestion pathway, this paper examines questions of reliability and adequacy of dose calculations in relation to five stages of data availability (geologic province, region, area, location, and mass balance) and three methods of calculation (population, population/food production, and food production driven). Calculations were done using the model PABLM with data for the Permian and Palo Duro Basins and the Deaf Smith County area. Extra effort expended in gathering agricultural data at succeeding environmental characterization levels does not appear justified, since dose estimates do not differ greatly; that effort would be better spent determining usage of food types that contribute most to the total dose; and that consumption rate and the air dispersion factor are critical to assessment of radiation dose via the ingestion pathway. 17 refs., 9 figs., 32 tabs.
Iron loss calculation for synchronous reluctance machines
Leonardi, F.; Matsuo, T.; Lipo, T.A. [Univ. of Wisconsin, Madison, WI (United States)
1995-12-31T23:59:59.000Z
A numerical method for iron loss calculation is presented in this paper. The method is suitable for any synchronous and most dc machines, especially if the current waveforms are known a priori . This technique will be principally useful for high speed machines and in particular for the synchronous reluctance machines and in particular for the synchronous reluctance machine, where the iron losses are often an important issue. The calculation is based on Finite Element Analysis, which provides the flux density waveforms in the iron, and on the Fourier Analysis of these waveforms. Several Finite Element Simulations are necessary to obtain the induced voltage versus time waveforms. To reduce the post-processing time the majority of the elements of the model are grouped together to create super elements. Also the periodicity of the motor can be used to reduce the number of required simulations. The method is applied to the calculation of the iron losses of a synchronous reluctance generator, and a number of interesting results are discussed in the paper.
Learning Adaptive Leg Cycles Using Fitness Biasing Gary B. Parker
Parker, Gary B.
computa- tion has been shown to be an effective way to learn gaits for hexapod robots [6]. These robots was effective in providing adaptive gait control for a hexapod robot that went through a series of leg capa) controllers for a hexapod [1]. The controller had foot, backward swing, and forward swing motor neurons; two
Recent Developments in No-Core Shell-Model Calculations
Navratil, P; Quaglioni, S; Stetcu, I; Barrett, B R
2009-03-20T23:59:59.000Z
We present an overview of recent results and developments of the no-core shell model (NCSM), an ab initio approach to the nuclear many-body problem for light nuclei. In this aproach, we start from realistic two-nucleon or two- plus three-nucleon interactions. Many-body calculations are performed using a finite harmonic-oscillator (HO) basis. To facilitate convergence for realistic inter-nucleon interactions that generate strong short-range correlations, we derive effective interactions by unitary transformations that are tailored to the HO basis truncation. For soft realistic interactions this might not be necessary. If that is the case, the NCSM calculations are variational. In either case, the ab initio NCSM preserves translational invariance of the nuclear many-body problem. In this review, we, in particular, highlight results obtained with the chiral two- plus three-nucleon interactions. We discuss efforts to extend the applicability of the NCSM to heavier nuclei and larger model spaces using importance-truncation schemes and/or use of effective interactions with a core. We outline an extension of the ab initio NCSM to the description of nuclear reactions by the resonating group method technique. A future direction of the approach, the ab initio NCSM with continuum, which will provide a complete description of nuclei as open systems with coupling of bound and continuum states is given in the concluding part of the review.
NSRD-2015-TD01, Technical Report for Calculations of Atmospheric...
Broader source: Energy.gov (indexed) [DOE]
default Q value when calculating the dispersion of chemical releases. NSRD-2015-TD01, Technical Report for Calculations of Atmospheric Dispersion at Onsite Locations for DOE...
Measurement and Verification Plan and Savings Calculations Methods...
Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site
Measurement and Verification Plan and Savings Calculations Methods Outline (IDIQ Attachment J-8) Measurement and Verification Plan and Savings Calculations Methods Outline (IDIQ...
Fragment Yields Calculated in a Time-Dependent Microscopic Theory...
Office of Scientific and Technical Information (OSTI)
Fragment Yields Calculated in a Time-Dependent Microscopic Theory of Fission Citation Details In-Document Search Title: Fragment Yields Calculated in a Time-Dependent Microscopic...
Energy Department Report Calculates Emissions and Costs of Power...
Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site
Report Calculates Emissions and Costs of Power Plant Cycling Necessary for Increased Wind and Solar in the West Energy Department Report Calculates Emissions and Costs of Power...
Illustrative Calculation of Economics for Heat Pump and "Grid...
Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site
Illustrative Calculation of Economics for Heat Pump and "Grid-Enabled" Water Heaters Illustrative Calculation of Economics for Heat Pump and "Grid-Enabled" Water Heaters Rate...
Excited state contamination in nucleon structure calculations
Jeremy Green; Stefan Krieg; John Negele; Andrew Pochinsky; Sergey Syritsyn
2011-11-28T23:59:59.000Z
Among the sources of systematic error in nucleon structure calculations is contamination from unwanted excited states. In order to measure this systematic error, we vary the operator insertion time and source-sink separation independently. We compute observables for three source-sink separations between 0.93 fm and 1.39 fm using clover-improved Wilson fermions and pion masses as low as 150 MeV. We explore the use of a two-state model fit to subtract off the contribution from excited states.
Calculation of Neutral Beam Injection into SSPX
Pearlstein, L D; Casper, T A; Hill, D N; LoDestro, L L; McLean, H S
2006-06-13T23:59:59.000Z
The SSPX spheromak experiment has achieved electron temperatures of 350eV and confinement consistent with closed magnetic surfaces. In addition, there is evidence that the experiment may be up against an operational beta limit for Ohmic heating. To test this barrier, there are firm plans to add two 0.9MW Neutral Beam (NB) sources to the experiment. A question is whether the limit is due to instability. Since the deposited Ohmic power in the core is relatively small the additional power from the beams is sufficient to significantly increase the electron temperature. Here we present results of computations that will support this contention. We have developed a new NB module to calculate the orbits of the injected fast fast-ions. The previous computation made heavy use of tokamak ordering which fails for a tight-aspect-ratio device, where B{sub tor} {approx} B{sub pol}. The model calculates the deposition from the NFREYA package [1]. The neutral from the CX deposition is assumed to be ionized in place, a high-density approximation. The fast ions are then assumed to fill a constant angular momentum orbit. And finally, the fast ions immediately assume the form of a dragged down distribution. Transfer rates are then calculated from this distribution function [2]. The differential times are computed from the orbit times and the particle weights in each flux zone (the sampling bin) are proportional to the time spent in the zone. From this information the flux-surface-averaged profiles are obtained and fed into the appropriate transport equation. This procedure is clearly approximate, but accurate enough to help guide experiments. A major advantage is speed: 5000 particles can be processed in under 4s on our fastest LINUX box. This speed adds flexibility by enabling a ''large'' number of predictive studies. Similar approximations, without the accurate orbit calculation presented here, had some success comparing with experiment and TRANSP [3]. Since our procedure does not have multiple CX and relies on disparate time scales, more detailed understanding requires a ''complete'' NB package such as the NUBEAM [4] module, which follows injected fast ions along with their generations until they enter the main thermal distribution.
Simple method for calculating island widths
Cary, J.R.; Hanson, J.D.; Carreras, B.A.; Lynch, V.E.
1989-01-01T23:59:59.000Z
A simple method for calculating magnetic island widths has been developed. This method uses only information obtained from integrating along the closed field line at the island center. Thus, this method is computationally less intensive than the usual method of producing surfaces of section of sufficient detail to locate and resolve the island separatrix. This method has been implemented numerically and used to analyze the buss work islands of ATF. In this case the method proves to be accurate to at least within 30%. 7 refs.
Simple method for calculating island widths
Cary, J.R. (Department of Astrophysical, Planetary, and Atmospheric Sciences, and Department of Physics, University of Colorado, Boulder, Colorado 80309-0391 (USA)); Hanson, J.D. (Department of Physics, Auburn University, Auburn, Alabama 36849 (USA))
1991-04-01T23:59:59.000Z
A simple method for calculating magnetic island widths has been developed. This method uses only that information obtained from integrating along the closed field line at the island center. Thus, this method is computationally less intensive than the usual method of producing surfaces of section of sufficient detail to locate and resolve the island separatrix. This method has been implemented numerically and used to analyze the buss work islands of ATF (Fusion Technol. {bold 10}, 179 (1986)). In this case the method proves to be accurate to at least within 20% even though the islands are within a factor of 2 of overlapping.
NERSC HPSS Storage Resource Units (SRU) Calculator
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:1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:5 TablesExports(Journal Article) |govInstrumentsmfrirtA Journey Inside the Complex andFOUR Los Phase 1MillerYiMuseumTrack StorageCalculator SRU
%POWER: A SIMPLE MACRO FOR POWER AND SAMPLE SIZE CALCULATIONS Kristin R. Latour
Friendly, Michael
%POWER: A SIMPLE MACRO FOR POWER AND SAMPLE SIZE CALCULATIONS Kristin R. Latour Abstract Statisticians often desire to investigate the power of statistical effect tests, or to estimate the sample size required to provide a significant effect test. This paper describes the macro POWER which provides
Learning style impact on knowledge gains in human patient simulation
Shinnick, MA; Woo, MA
2015-01-01T23:59:59.000Z
identifying with most types of learning styles. © 2014others prefer re?ective types of learning opportuni- ties,learning style. Types of Learning Styles Kolb depicts
Toh, Dennis; Lim, Matthew; Wee, Loo Kang; Ong, Matthew
2015-01-01T23:59:59.000Z
Teaching Robotics is about empowering students to create and configure robotics devices and program computers to nurture in students the skill sets necessary to play an active role in society. The robot in Figure 1 focuses on the design of scaffolds and physical assembly methods, coupled with a computer logic program to make that makes it move or behave in a very precise (remote controlled or autonomous) manner. This enables students to investigate, explore and refine the program to affect the robots. The Robotics approach takes into account the increasing popularity of Computer Science and the learning by doing (Schank, Berman, & Macpherson, 1999) approach to solve complex problems and use computers meaningfully in learning (Barron & Darling-Hammond, 2008; Jonassen, Howland, Marra, & Crismond, 2008). In Singapore, teachers and students in Woodlands Ring Secondary and Rulang Primary have incorporated robotics to varying extents into formal and informal curricula. In addition, other less expensive ...
Multicavity SCRF calculation of ion hydration energies
Diercksen, B.H.F. [Max-Planck-Institut Fuer Astrophysik, Muenchen (Germany); Karelson, M. [Univ. of Tartu (Estonia); Tamm, T. [Univ. of Florida, Gainesville, FL (United States)
1994-12-31T23:59:59.000Z
The hydration energies of the proton, hydroxyl ion, and several inorganic ions were calculated using the multicavity self-consistent reaction field (MCa SCRF) method developed for the quantum-mechanical modeling of rotationally or flexible systems in dielectric media. The ionic complexes H{sub 3}O{sup +}(H2O){sub 4}, OH{sup {minus}}(H2O){sub 4}, NH{sup +}{sub 4}(H2O){sub 4}, and Hal{sup {minus}}(H2O){sub 4}, where Hal = F, Cl, or Br, have been studied. Each complex was divided between five spheres, corresponding to the central ion and four water molecules in their first coordination sphere, respectively. Each cavity was surrounded by a polarizable medium with the dielectric permittivity of water at room temperature (80). The ionic hydration energies of ions were divided into specific and nonspecific parts. After accounting for the cavity-formation energy using scaled particle theory, good agreement between the total calculated and experimental hydration energies was obtained for all ions studied.
Calculating chiller emissions and source energy use
Aumann, D.J. [Bevilacqua-Knight, Inc., Oakland, CA (United States)
1996-12-31T23:59:59.000Z
Various analyses have compared the emissions and over-all source energy use of different chillers. However, these analyses are typically based on national or regional electric power plant annual averages or rely on outdated emissions data that do not account for scrubbers and other pollution controls applied in response to the 1990 Clean Air Act Amendments (CAAA). Other analyses have used power generation data for a specific utility but require hourly generation profiles, which are difficult to obtain. Thus, many of the existing models are either too general to provide valuable information or too complex to be practical for the day-to-day applications engineers face. This paper introduces a simple yet reliable hand calculation method for estimating the combustion-related emissions and source energy use of gas and electric chillers. The user needs to supply only two inputs: annual chiller system energy use and the utility`s power generation mix during chiller operation. The analysis supplies electric power plant heat rates and emission factors. Referenced guidelines are documented for all calculation inputs.
Observational learning in horses
Baer, Katherine Louise
1979-01-01T23:59:59.000Z
. One group served as control subjects while the other group functioned as a treated group (observers). The observers were allowed to watch a correctly performed discrimination task prior to testing of a learning response using the same task.... Discrimination testing was conducted on all horses daily for 14 days with criterion set at seven out of eight responses correct with the last five consecutively correct. The maximum number of trials performed without reaching set criterion was limited...
Distance Learning Faculty Handbook
Lozano-Robledo, Alvaro
;3. Course Delivery 3.1. Managing Multiple Sites 9 3.2. Things You Should and Should Not Do On Camera 9 3.5. Troubleshooting Technical Issues 19 4. Getting Help 4.1. Logistics and Administration 20 4.2. Course Design 20 4.3. Technical Support 20 5. Faculty Resources 5.1. Institute for Teaching and Learning 21 5.1.1. IDD
Preference Learning Johannes Furnkranz, Eyke Hullermeier
Fürnkranz, Johannes
types of prediction problems, the learning from/of preferences has recently received a lot of attention in the machine learning literature. Like other types of complex learning tasks, preference learning deviates provide a systematic exposition of different types of preference learning problems nor a comprehensive
Benefits of multisensory learning Ladan Shams1
Shams, Ladan B.
of learning? Acquiring this skill can involve many types of learning and here we focus on aspectsBenefits of multisensory learning Ladan Shams1 and Aaron R. Seitz2 1 Department of Psychology, Riverside, CA 92521, USA Studies of learning, and in particular perceptual learning, have focused
Calculated fission-fragment yield systematics in the region 74
DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)
Möller, Peter; Randrup, Jørgen
2015-04-01T23:59:59.000Z
Background: In the seminal experiment by Schmidt et al. [Nucl. Phys. A 665, 221 (2000)] in which fission-fragment charge distributions were obtained for 70 nuclides, asymmetric distributions were seen above nucleon number A ? 226 and symmetric ones below. Because asymmetric fission had often loosely been explained as a preference for the nucleus to always exploit the extra binding of fragments near ¹³²Sn it was assumed that all systems below A ? 226 would fission symmetrically because available isotopes do not have a proton-to-neutron Z/N ratio that allows division into fragments near ¹³²Sn. But the finding by Andreyev et al.more »[Phys. Rev. Lett. 105, 252502 (2010)] did not conform to this expectation because the compound system ¹??Hg was shown to fission asymmetrically. It was suggested that this was a new type of asymmetric fission, because no strong shell effects occur for any possible fragment division. Purpose: We calculate a reference database for fission-fragment mass yields for a large region of the nuclear chart comprising 987 nuclides. A particular aim is to establish whether ¹??Hg is part of a contiguous region of asymmetric fission, and if so, its extent, or if not, in contrast to the actinides, there are scattered smaller groups of nuclei that fission asymmetrically in this area of the nuclear chart. Methods: We use the by now well benchmarked Brownian shape-motion method and perform random walks on the previously calculated five-dimensional potential-energy surfaces. The calculated shell corrections are damped out with energy according to a prescription developed earlier. Results: We have obtained a theoretical reference database of fission-fragment mass yields for 987 nuclides. These results show an extended region of asymmetric fission with approximate extension 74 ? Z ? 85 and 100 ? N ? 120. The calculated yields are highly variable. We show 20 representative plots of these variable features and summarize the main aspects of our results in terms of “nuclear-chart” plots showing calculated degrees of asymmetry versus N and Z. Conclusions: Experimental data in this region are rare: only ten or so yield distributions have been measured, some with very limited statistics. We agree with several measurements with higher statistics. Regions where there might be differences between our calculated results and measurements lie near the calculated transition line between symmetric and asymmetric fission. To draw more definite conclusions about the accuracy of the present implementation of the Brownian shape-motion approach in this region experimental data, with reliable statistics, for a fair number of suitably located additional nuclides are clearly needed. Because the nuclear potential-energy structure is so different in this region compared to the actinide region, additional experimental data together with fission theory studies that incorporate additional, dynamical aspects should provide much new insight.« less
Benchmark On Sensitivity Calculation (Phase III)
Ivanova, Tatiana [IRSN; Laville, Cedric [IRSN; Dyrda, James [Atomic Weapons Establishment; Mennerdahl, Dennis [E. Mennerdahl Systems; Golovko, Yury [Institute of Physics and Power Engineering (IPPE), Obninsk, Russia; Raskach, Kirill [Institute of Physics and Power Engineering (IPPE), Obninsk, Russia; Tsiboulia, Anatoly [Institute of Physics and Power Engineering (IPPE), Obninsk, Russia; Lee, Gil Soo [Korea Institute of Nuclear Safety (KINS); Woo, Sweng-Woong [Korea Institute of Nuclear Safety (KINS); Bidaud, Adrien [Labratoire de Physique Subatomique et de Cosmolo-gie (LPSC); Patel, Amrit [NRC; Bledsoe, Keith C [ORNL; Rearden, Bradley T [ORNL; Gulliford, J. [OECD Nuclear Energy Agency
2012-01-01T23:59:59.000Z
The sensitivities of the keff eigenvalue to neutron cross sections have become commonly used in similarity studies and as part of the validation algorithm for criticality safety assessments. To test calculations of the sensitivity coefficients, a benchmark study (Phase III) has been established by the OECD-NEA/WPNCS/EG UACSA (Expert Group on Uncertainty Analysis for Criticality Safety Assessment). This paper presents some sensitivity results generated by the benchmark participants using various computational tools based upon different computational methods: SCALE/TSUNAMI-3D and -1D, MONK, APOLLO2-MORET 5, DRAGON-SUSD3D and MMKKENO. The study demonstrates the performance of the tools. It also illustrates how model simplifications impact the sensitivity results and demonstrates the importance of 'implicit' (self-shielding) sensitivities. This work has been a useful step towards verification of the existing and developed sensitivity analysis methods.
Calculating LHC Tuning Knobs using Various Methods
Wittmer, W; Zimmermann, Frank
2004-01-01T23:59:59.000Z
By measuring and adjusting the beta-functions at the IP the luminosity is being optimized. In LEP this was done with the two closest doublet magnets. This approach is not applicable for the LHC due to the asymmetric lattice and common beam pipe through the triplet magnets. To control and change the beta-functions quadrupole groups situated on both sides further away from the IP have to be used where the two beams are already separated. The quadrupoles are excited in specific linear combinations, forming the socalled “tuning knobs” for the IP beta functions. We compare the performance of such knobs calculated by different methods: (1) matching in MAD, (2) inversion of the response matrix and singular value decomposition inversion and conditioning and (3) conditioning the response matrix by multidimensional minimization using an Adapted Moore Penrose Method.
On the calculation of mutual information
Duncan, Tyrone E.
1970-07-01T23:59:59.000Z
as follows: (1) d Yt Zt dt + dBt, where the n-dimensional process Z is independent of the n-dimensional standard Brownian motion B, [0, 1], Yo =- 0 and (2) f,f ZTt Zt dP dr< where the superscript T denotes transpose. We wish to calculate the amount... was supported by the United States Air Force under Grant AF-AFOSR 814-66. 215 D ow nl oa de d 09 /1 0/ 14 to 1 29 .2 37 .4 6. 10 0. R ed ist rib ut io n su bje ct to SIA M lic en se or co py rig ht; se e h ttp ://w ww .si am .or g/j ou rna ls/ ojs a...
Followup calculations for the UVAR LEU conversion
Rydin, R.A.; Hosticka, B.; Burns, T. [Univ. of Virginia, Charlottesville, VA (United States). Dept. of Mechanical, Aerospace and Nuclear Engineering] [and others
1995-12-31T23:59:59.000Z
The UVAR reactor was successfully converted to LEU fuel in April 1994. Void coefficient measurements were made on the 4-by-4 fully-graphite-reflected LEU-1 core configuration, and an isothermal temperature coefficient measurement was made on the operational 4-by-5 partially-graphite-reflected LEU-2 core configuration. Both of these experiments have now been modeled in their critical configurations using the 3DBUM code. The LEU cores were also modeled using the Monte Carlo code MCNP in order to obtain a neutron/gamma source for BNCT filter design calculations. Advanced BNCT filters have been evaluated using both MCNP and the discrete ordinates code DORT. The results indicate that the UVAR would be an ideal source for the BNCT treatment of brain tumors.
A primer for criticality calculations with DANTSYS
Busch, R.D. [Univ. of New Mexico, Albuquerque, NM (United States). Nuclear Criticality Safety Group
1997-08-01T23:59:59.000Z
With the closure of many experimental facilities, the nuclear safety analyst has to rely on computer calculations to identify safe limits for the handling and storage of fissile materials. Although deterministic methods often do not provide exact models of a system, a substantial amount of reliable information on nuclear systems can be obtained using these methods if the user understands their limitations. To guide criticality specialists in this area, the Nuclear Criticality Safety Group at the University of New Mexico (UNM) in cooperation with the Radiation Transport Group at Los Alamos National Laboratory (LANL) has designed a primer to help the analyst understand and use the DANTSYS deterministic transport code for nuclear criticality safety analyses. DANTSYS is the new name of the group of codes formerly known as: ONEDANT, TWODANT, TWOHEX, TWOGQ, and THREEDANT. The primer is designed to teach bu example, with each example illustrating two or three DANTSYS features useful in criticality analyses. Starting with a Quickstart chapter, the primer gives an overview of the basic requirements for DANTSYS input and allows the user to quickly run a simple criticality problem with DANTSYS. Each chapter has a list of basic objectives at the beginning identifying the goal of the chapter and the individual DANTSYS features covered in detail in the chapter example problems. On completion of the primer, it is expected that the user will be comfortable doing criticality calculations with DANTSYS and can handle 60--80% of the situations that normally arise in a facility. The primary provides a set of input files that can be selective modified by the user to fit each particular problem.
Effective Community-Wide Policy Technical Assistance: The DOE/NREL Approach (Brochure)
Not Available
2010-11-01T23:59:59.000Z
This document compiles lessons learned and provides a step-by-step process for implementing effective policy assistance.
Learning Tiny Theories Tim Menzies
Menzies, Tim
Learning Tiny Theories Tim Menzies , Rajesh Gunnalan , Kalaivani Appukutty , Amarnath Srinivasan Engineering, University of British Columbia, Canada {gunnalan|avani|amarnath}@csee
Coupled-channels calculations of $^{16}$O+$^{16}$O fusion
H. Esbensen
2008-05-13T23:59:59.000Z
Fusion data for $^{16}$O+$^{16}$O are analyzed by coupled-channels calculations. It is shown that the calculated cross sections are sensitive to the couplings to the $2^+$ and $3^-$ excitation channels even at low energies, where these channels are closed. The sensitivity to the ion-ion potential is investigated by applying a conventional Woods-Saxon potential and the M3Y+repulsion potential, consisting of the M3Y double-folding potential and a repulsive term that simulates the effect of the nuclear incompressibility. The best overall fit to the data is obtained with a M3Y+repulsion potential which produces a shallow potential in the entrance channel. The stepwise increase in measured fusion cross sections at high energies is also consistent with such a shallow potential. The steps are correlated with overcoming the barriers for the angular momenta $L$ = 12, 14, 16, and 18. To improve the fit to the low-energy data requires a shallower potential and this causes a even stronger hindrance of fusion at low energies. It is therefore difficult, based on the existing fusion data, to make an accurate extrapolation to energies that are of interest to astrophysics.
Microcomputer aided calculations of parameters for spray dryer operation
Yeh, J.T.; Gyorke, D.F.; Pennline, H.W.; Drummond, C.J.
1985-01-01T23:59:59.000Z
This paper provides a series of practical microcomputer programs that can be used as a tool by engineers and researchers working with spray dryers for combustion process effluent control. The microcomputer programs calculate flue gas composition (CO/sub 2/, N/sub 2/, O/sub 2/, H/sub 2/O, and SO/sub 2/) from the composition of the fuel. The residence time of the flue gas in a spray dryer can be estimated, and using values provided by the user for the flow of water and absorbent slurry in the spray dryer, the program recalculates the flue gas composition and heat capacity at the exit of the spray dryer without accounting for any SO/sub 2/ removal that could occur in the spray dryer. From these values and the system pressure, the dew point and flue gas temperature at the spray dryer exit are calculated, providing the approach to saturation resulting from this choice of operating parameters. This computer code would enable a process engineer to quickly evaluate effects of important process parameters, such as flue gas temperature at the inlet to the spray dryer, atomizer water feed rate, and absorbent slurry concentration and feed rate, on the operation of a spray dryer.
Hanafi, Hafizul Fahri
2012-01-01T23:59:59.000Z
Of late, mobile technology has introduced new, novel environment that can be capitalized to further enrich the teaching and learning process in classrooms. Taking cognizance of this promising setting, a study was undertaken to investigate the impact of such an environment enabled by android platform on the learning process among undergraduates of Sultan Idris Education University, Malaysia; in particular, this paper discusses critical aspects of the design and implementation of the android learning system. Data were collected through a survey involving 56 respondents, and these data were analyzed by using SPSS 12.0. Findings showed that the respondents were very receptive to the interactivity, accessibility, and convenience of the system, but they were quite frustrated with the occasional interruptions due to internet connectivity problems. Overall, the mobile learning system can be utilized as an inexpensive but potent learning tool that complements undergraduates' learning process.
Quantum Monte Carlo calculation of the equation of state of neutron matter
Gandolfi, S.; Illarionov, A. Yu.; Schmidt, K. E.; Pederiva, F.; Fantoni, S. [International School for Advanced Studies, SISSA Via Beirut 2/4 I-34014 Trieste (Italy) and INFN, Sezione di Trieste, Trieste (Italy); Department of Physics, Arizona State University, Tempe, Arizona 85287 (United States); Dipartimento di Fisica dell'Universita di Trento, via Sommarive 14, I-38050 Povo, Trento (Italy) and INFN, Gruppo Collegato di Trento, Trento (Italy); International School for Advanced Studies, SISSA Via Beirut 2/4 I-34014 Trieste (Italy); INFN, Sezione di Trieste, Trieste, Italy and INFM DEMOCRITOS National Simulation Center, Via Beirut 2/4 I-34014 Trieste (Italy)
2009-05-15T23:59:59.000Z
We calculated the equation of state of neutron matter at zero temperature by means of the auxiliary field diffusion Monte Carlo (AFDMC) method combined with a fixed-phase approximation. The calculation of the energy was carried out by simulating up to 114 neutrons in a periodic box. Special attention was given to reducing finite-size effects at the energy evaluation by adding to the interaction the effect due to the truncation of the simulation box, and by performing several simulations using different numbers of neutrons. The finite-size effects due to kinetic energy were also checked by employing the twist-averaged boundary conditions. We considered a realistic nuclear Hamiltonian containing modern two- and three-body interactions of the Argonne and Urbana family. The equation of state can be used to compare and calibrate other many-body calculations and to predict properties of neutron stars.
Search Techniques for Fourier-Based Learning Adam Drake and Dan Ventura
Martinez, Tony R.
Search Techniques for Fourier-Based Learning Adam Drake and Dan Ventura Computer Science Department Brigham Young University {acd2,ventura}@cs.byu.edu Abstract Fourier-based learning algorithms rely-based algorithms have also been effectively applied in real-world settings [Drake and Ventura, 2005; Kargupta et al
A Robust Learning Algorithm Based on SURF and PSM for Facial Expression Recognition
Takiguchi, Tetsuya
A Robust Learning Algorithm Based on SURF and PSM for Facial Expression Recognition Jinhui Chen is based on the Perturbed Subspace Method (PSM), which is an effective way to improve the robustness of learning machines. First, PSM is used to extend the training data, which allows for the generation of ideal
Scaling Reinforcement Learning Paradigms for Motor Control
Vijayakumar, Sethu; Peters, Jan; Schaal, Stefan
Reinforcement learning offers a general framework to explain reward related learning in artificial and biological motor control. However, current reinforcement learning methods rarely scale to high dimensional movement systems ...
Lessons Learned Quarterly Report, March 2004
Broader source: Energy.gov [DOE]
Welcome to the 38th quarterly report on lessons learned in the NEPA process. In this issue we are continuing a multi-part examination of lessons learned from Lessons Learned.
Learning | Department of Energy
Office of Environmental Management (EM)
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:5 TablesExports to3,1,50022,3,,0,,6,1,Separation 23 362 334Department ofEnergy FYIntegratedBerkeley National LaboratoryAction Agenda |TribalLearning
Homeokinesis A new principle to back up evolution with learning
Polani, Daniel
of learningDifferent types of learningDifferent types of learningDifferent types of learning #12 space required Homeokinesis 8 September 2008 Different types of learningDifferent types of learningDifferent types of learningDifferent types of learning #12;· So far, only fairly simple successful examples, e
Category and Perceptual Learning in Subjects with Treated Wilson's Disease
2010-01-01T23:59:59.000Z
many similarities. In both types of learning, observers arebetween different types of category and perceptual learning.
Development of a Roof Savings Calculator
New, Joshua Ryan [ORNL] [ORNL; Miller, William A [ORNL] [ORNL; Desjarlais, Andre Omer [ORNL] [ORNL; Erdem, Ender [Lawrence Berkeley National Laboratory (LBNL)] [Lawrence Berkeley National Laboratory (LBNL); Huang, Joe [Lawrence Berkeley National Laboratory (LBNL)] [Lawrence Berkeley National Laboratory (LBNL)
2011-01-01T23:59:59.000Z
A web-based Roof Savings Calculator (RSC) has been deployed for the Department of Energy as an industry-consensus tool to help building owners, manufacturers, distributors, contractors and researchers easily run complex roof and attic simulations. This tool employs the latest web technologies and usability design to provide an easy input interface to an annual simulation of hour-by-hour, whole-building performance using the world-class simulation tools DOE-2.1E and AtticSim. Building defaults were assigned and can provide estimated annual energy and cost savings after the user selects nothing more than building location. In addition to cool reflective roofs, the RSC tool can simulate multiple roof types at arbitrary inclinations. There are options for above sheathing ventilation, radiant barriers, and low-emittance surfaces. The tool also accommodates HVAC ducts either in the conditioned space or in the attic with custom air leakage rates. Multiple layers of building materials, ceiling and deck insulation, and other parameters can be compared side-by-side to generate an energy/cost savings estimate between two buildings. The RSC tool was benchmarked against field data for demonstration homes in Ft. Irwin, CA.
Development of a Roof Savings Calculator
New, Joshua Ryan [ORNL] [ORNL; Miller, William A [ORNL] [ORNL; Huang, Joe [Lawrence Berkeley National Laboratory (LBNL)] [Lawrence Berkeley National Laboratory (LBNL); Erdem, Ender [Lawrence Berkeley National Laboratory (LBNL)] [Lawrence Berkeley National Laboratory (LBNL)
2011-01-01T23:59:59.000Z
A web-based Roof Savings Calculator (RSC) has been deployed for the Department of Energy as an industry-consensus tool to help building owners, manufacturers, distributors, contractors and researchers easily run complex roof and attic simulations. This tool employs the latest web technologies and usability design to provide an easy input interface to an annual simulation of hour-by-hour, whole-building performance using the world-class simulation tools DOE-2.1E and AtticSim. Building defaults were assigned and can provide annual energy and cost savings after the user selects nothing more than building location. In addition to cool reflective roofs, the RSC tool can simulate multiple roof types at arbitrary inclinations. There are options for above sheathing ventilation, radiant barriers and low-emittance surfaces. The tool also accommodates HVAC ducts either in the conditioned space or in the attic with custom air leakage rates. Multiple layers of thermal mass, ceiling insulation and other parameters can be compared side-by-side to generate energy/cost savings between two buildings. The RSC tool was benchmarked against field data for demonstration homes in Ft Irwin, CA.
Visual Analytics for Roof Savings Calculator Ensembles
Jones, Chad [University of California, Davis] [University of California, Davis; New, Joshua Ryan [ORNL] [ORNL; Sanyal, Jibonananda [ORNL] [ORNL; Ma, Kwan-Liu [University of California, Davis] [University of California, Davis
2012-01-01T23:59:59.000Z
The Roof Savings Calculator (RSC) has been deployed for DOE as an industry-consensus, web-based tool for easily running complex building energy simulations. These simulations allow both homeowners and experts to determine building-specific cost and energy savings for modern roof and attic technologies. Using a database of over 3 million RSC simulations for different combinations of parameters, we have built a visual analytics tool to assist in the exploration and identification of features in the data. Since the database contains multiple variables, both categorical and continuous, we employ a coordinated multi-view approach that allows coordinated feature exploration through multiple visualizations at once. The main component of our system, a parallel coordinates view, has been adapted to handle large-scale, mixed data types as are found in RSC simulations. Other visualizations include map coordinated plots, high dynamic range (HDR) line plot rendering, and an intuitive user interface. We demonstrate these techniques with several use cases that have helped identify software and parametric simulation issues.
Recent PQCD calculations of heavy quark production
Vitev, I
2006-01-01T23:59:59.000Z
We summarize the results of a recent study of heavy quark production and attenuation in cold nuclear matter. In p+p collisions, we investigate the relative contribution of partonic sub-processes to $D$ meson production and $D$ meson-triggered inclusive di-hadrons to lowest order in perturbative QCD. While gluon fusion dominates the creation of large angle $D\\bar{D}$ pairs, charm on light parton scattering determines the yield of single inclusive $D$ mesons. The distinctly different non-perturbative fragmentation of $c$ quarks into $D$ mesons versus the fragmentation of quarks and gluons into light hadrons results in a strong transverse momentum dependence of anticharm content of the away-side charm-triggered jet. In p+A reactions, we calculate and resum the coherent nuclear-enhanced power corrections from the final-state partonic scattering in the medium. We find that single and double inclusive open charm production can be suppressed as much as the yield of neutral pions from dynamical high-twist shadowing. ...
Lessons Learned in Islands | Department of Energy
Office of Environmental Management (EM)
Study on Oahu Learn about high penetration solar studies in Hawai'i. Solar Hot Water Heater Industry in Barbados Learn how Barbados successfully overcame market barriers...
Industrial Assessment Centers Help Students, Communities Learn...
Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site
Help Students, Communities Learn About Energy Efficiency Industrial Assessment Centers Help Students, Communities Learn About Energy Efficiency March 9, 2011 - 10:42am Addthis...
Kemner, Ken
Eddy-Current-Induced Multipole Field Calculations September 29, 2003 1 Eddy-Current-Induced Multipole Field Calculations Nicholas S. Sereno, Suk H. Kim 1.0 Abstract Time-varying magnetic fields-current-induced multipole fields from higher multipole magnets (quadrupole, sextupole, etc.). Finally, transient effects
Kinematic Motor Learning Wolfram Schenck
Moeller, Ralf
Kinematic Motor Learning Wolfram Schenck Computer Engineering Group Faculty of Technology Bielefeld-521-106-6440 mail: wschenck@ti.uni-bielefeld.de Abstract This paper focuses on adaptive motor control in the kinematic domain. Several motor learning strategies from the literature are adopted to kinematic problems
EDUCATION 01 THE LEARNING BRAIN
1 EDUCATION 01 THE LEARNING BRAIN: INTRODUCTION TO CHILD DEVELOPEMENT AND EDUCATION FALL of the typically developing learning brain. Course Goals · Introduce the developing field of Mind, Brain is to explore the connections between brain research and education. The assignment has 3 parts. 1) Find
Handbook of Industrial Engineering Equations, Formulas, and Calculations
Badiru, Adedeji B [ORNL; Omitaomu, Olufemi A [ORNL
2011-01-01T23:59:59.000Z
The first handbook to focus exclusively on industrial engineering calculations with a correlation to applications, Handbook of Industrial Engineering Equations, Formulas, and Calculations contains a general collection of the mathematical equations often used in the practice of industrial engineering. Many books cover individual areas of engineering and some cover all areas, but none covers industrial engineering specifically, nor do they highlight topics such as project management, materials, and systems engineering from an integrated viewpoint. Written by acclaimed researchers and authors, this concise reference marries theory and practice, making it a versatile and flexible resource. Succinctly formatted for functionality, the book presents: Basic Math Calculations; Engineering Math Calculations; Production Engineering Calculations; Engineering Economics Calculations; Ergonomics Calculations; Facility Layout Calculations; Production Sequencing and Scheduling Calculations; Systems Engineering Calculations; Data Engineering Calculations; Project Engineering Calculations; and Simulation and Statistical Equations. It has been said that engineers make things while industrial engineers make things better. To make something better requires an understanding of its basic characteristics and the underlying equations and calculations that facilitate that understanding. To do this, however, you do not have to be computational experts; you just have to know where to get the computational resources that are needed. This book elucidates the underlying equations that facilitate the understanding required to improve design processes, continuously improving the answer to the age-old question: What is the best way to do a job?
Normalizing Weather Data to Calculate Energy Savings Peer Exchange...
Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site
Normalizing Weather Data to Calculate Energy Savings Peer Exchange Call Normalizing Weather Data to Calculate Energy Savings Peer Exchange Call February 26, 2015 3:00PM to 4:3...
Supporting Calculations For Submerged Bed Scrubber Condensate Disposal Preconceptual Study
Pajunen, A. J.; Tedeschi, A. R.
2012-09-18T23:59:59.000Z
This document provides supporting calculations for the preparation of the Submerged Bed Scrubber Condensate Disposal Preconceptual Study report The supporting calculations include equipment sizing, Hazard Category determination, and LAW Melter Decontamination Factor Adjustments.
TDHF fusion calculations for spherical+deformed systems
A. S. Umar; V. E. Oberacker
2006-04-04T23:59:59.000Z
We outline a formalism to carry out TDHF calculations of fusion cross sections for spherical + deformed nuclei. The procedure incorporates the dynamic alignment of the deformed nucleus into the calculation of the fusion cross section. The alignment results from multiple E2/E4 Coulomb excitation of the ground state rotational band. Implications for TDHF fusion calculations are discussed. TDHF calculations are done in an unrestricted three-dimensional geometry using modern Skyrme force parametrizations.
Application of RAD-BCG calculator to Hanford's 300 area shoreline characterization dataset
Antonio, Ernest J.; Poston, Ted M.; Tiller, Brett L.; Patton, Gene W.
2003-07-01T23:59:59.000Z
Abstract. In 2001, a multi-agency study was conducted to characterize potential environmental effects from radiological and chemical contaminants on the near-shore environment of the Columbia River at the 300 Area of the U.S. Department of Energy’s Hanford Site. Historically, the 300 Area was the location of nuclear fuel fabrication and was the main location for research and development activities from the 1940s until the late 1980s. During past waste handling practices uranium, copper, and other heavy metals were routed to liquid waste streams and ponds near the Columbia River shoreline. The Washington State Department of Health and the Pacific Northwest National Laboratory’s Surface Environmental Surveillance Project sampled various environmental components including river water, riverbank spring water, sediment, fishes, crustaceans, bivalve mollusks, aquatic insects, riparian vegetation, small mammals, and terrestrial invertebrates for analyses of radiological and chemical constituents. The radiological analysis results for water and sediment were used as initial input into the RAD-BCG Calculator. The RAD-BCG Calculator, a computer program that uses an Excel® spreadsheet and Visual Basic® software, showed that maximum radionuclide concentrations measured in water and sediment were lower than the initial screening criteria for concentrations to produce dose rates at existing or proposed limits. Radionuclide concentrations measured in biota samples were used to calculate site-specific bioaccumulation coefficients (Biv) to test the utility of the RAD-BCG-Calculator’s site-specific screening phase. To further evaluate site-specific effects, the default Relative Biological Effect (RBE) for internal alpha particle emissions was reduced by half and the program’s kinetic/allometric calculation approach was initiated. The subsequent calculations showed the initial RAD-BCG Calculator results to be conservative, which is appropriate for screening purposes.
The melting lines of model systems calculated from coexistence simulations
Song, Xueyu
rapidly as a function of the potential cutoff, indicating that long-range corrections to the free energies of the solid and liquid phases very nearly cancel. This approach provides an alternative to traditional methods them. Tradition- ally, these calculations have been made using free energy calculations: by calculating
Deictic Pronoun Learning and Mirror Self-Identification
Scassellati, Brian
, the robot uses the timing of the visual feedback that results from its arm's movement. The part of the image and the ability to use the word "I" effectively are commonly seen as major milestones in a human infant definitions with sensory patterns in- stead of pragmatic roles. Here, a robot learns the usage of the words "I
Post-Training Support for Learning Technology Sam Snoddy, Jr.
Novick, David G.
Post-Training Support for Learning Technology Sam Snoddy, Jr. Cloudcroft Schools P.O. Box 198 the effects of post-training support, we studied the introduction of new gradebook software in a public high school. The school's 108 faculty members received training on the software, and approximately half
BDNF Facilitates Instrumental Learning and Spinal Plasticity In Vivo.
Niemerski, Ashley
2014-01-27T23:59:59.000Z
for intrathecal, localized delivery to the injured spinal cord. Biomaterials 27, 2370-9. Huie, J.R., Garraway, S.M., Hoy, K.C.,& Grau, J.W. (2012) Learning in the spinal cord: BDNF mediates the beneficial effects of instrumental training. Neuroscience, 200, 74...
Reinforcement Learning for Active Length Control of Shape Memory Alloys
Valasek, John
Reinforcement Learning for Active Length Control of Shape Memory Alloys Kenton Kirkpatrick John Valasek Aerospace Engineering Department Texas A&M University AIAA GNC Conference 21 August 2008 Honolulu;Kirkpatrick & Valasek - 5 Shape Memory Alloys (SMA) Metallic Alloys used as actuators Shape Memory Effect
A Nursery and Greenhouse Online Knowledge Center: Learning Opportunities
Virginia Tech
A Nursery and Greenhouse Online Knowledge Center: Learning Opportunities for Sustainable Practice and greenhouse operations. This is particularly important because these production facilities are typically and greenhouse industry. A web-based knowledge center provides the most cost-effective mechanism for information
Blasting through lattice calculations using CUDA
Kipton Barros; Ronald Babich; Richard Brower; Michael A. Clark; Claudio Rebbi
2008-10-29T23:59:59.000Z
Modern graphics hardware is designed for highly parallel numerical tasks and provides significant cost and performance benefits. Graphics hardware vendors are now making available development tools to support general purpose high performance computing. Nvidia's CUDA platform, in particular, offers direct access to graphics hardware through a programming language similar to C. Using the CUDA platform we have implemented a Wilson-Dirac operator which runs at an effective 68 Gflops on the Tesla C870. The recently released GeForce GTX 280 runs this same code at 92 Gflops, and we expect further improvement pending code optimization.
Getting their feet wet: Young water researchers learn the ropes, thanks to grants
Lee, Leslie
2010-01-01T23:59:59.000Z
. The 2010?2011 grant recipients are examining such topics as the biological treatment of wastewater contaminated with estrogenic compounds and the effect of photovoltaic nanoma- terial roofing on harvested rainwater quality. To learn more about...
Getting their feet wet: Young water researchers learn the ropes, thanks to grants
Lee, Leslie
2011-01-01T23:59:59.000Z
. The 2010?2011 grant recipients are examining such topics as the biological treatment of wastewater contaminated with estrogenic compounds and the effect of photovoltaic nanoma- terial roofing on harvested rainwater quality. To learn more about...
Yerokhin, V A
2012-01-01T23:59:59.000Z
Large-scale relativistic configuration-interaction calculation of energy levels of core-excited states of lithium-like ions is presented. Quantum electrodynamic, nuclear recoil, and frequency-dependent Breit corrections are included in the calculation. The approach is consistently applied for calculating all $n=2$ core-excited states for all lithium-like ions starting from argon ($Z = 18$) and ending with krypton ($Z = 36$). The results obtained are supplemented with systematical estimations of calculation errors and omitted effects.
Office of Energy Efficiency and Renewable Energy (EERE)
This document compiles lessons learned and provides a step-by-step process for implementing effective policy assistance.
E ective Neuronal Learning with Ine ective Hebbian Learning Rules
Chechik, Gal
; Palm & Sommer, 1996) derived the learn- ing rule that maximizes the network memory capacity, and showed of papers (Palm & Sommer, 1988; Palm, 1992; Palm & Sommer, 1996), Palm and Sommer have further studied
Learning with Online Constraints: Shifting Concepts and Active Learning
Monteleoni, Claire E.
2006-09-01T23:59:59.000Z
Many practical problems such as forecasting, real-time decisionmaking, streaming data applications, and resource-constrainedlearning, can be modeled as learning with online constraints. Thisthesis is concerned with analyzing ...
Team Based Learning (TBL) Scott Bryant
Dyer, Bill
Team Based Learning (TBL) Bill Brown Scott Bryant Susan Dana MSU College of Business #12;Agenda · Overview of Team Based Learning (TBL) · RATs! · Team Learning Exercises · Graded Work Product · Challenges with TBL · Q & A #12;Overview of Team Based Learning · Comprehensive teaching strategy to enable active
Session 3280 Why Bother Learning about
Larkin, Teresa L.
Session 3280 Why Bother Learning about Learning Styles and Psychological Types? Teresa Larkin instruction is designed with learning styles in mind 1 - 3 . The adoption of any type of new teaching and and psychological types will be addressed. A brief overview of two learning style models and assessment instruments
Preference Learning Johannes Furnkranz, Eyke Hullermeier
Hüllermeier, Eyke
with novel types of prediction problems, the learning from/of preferences has recently received a lot of attention in the machine learning literature. Just as other types of complex learning tasks, preference or the type of information provided as an input to the learning system. Needless to say, this short article
Learning and Memory Eric R. Kandel
Ulanovsky, Nachum
and memory we are interested in several questions. What are the major forms of P.1228 learning? What types of information about the environment are learned most easily? Do different types of learning give riseBack 62 Learning and Memory Eric R. Kandel Irving Kupfermann Susan Iversen BEHAVIOR IS THE RESULT
Batch-mode Supervised Learning Linear regression
Wehenkel, Louis
Batch-mode Supervised Learning Linear regression Applied inductive learning - Lecture 3 Louis (& Pierre Geurts)AIA... (1/19) #12;Batch-mode Supervised Learning Linear regression Batch-mode Supervised Learning Linear regression Least mean square error solution Regularization and algorithmics Residual
Analytical calculation of the drag force near drag crisis of a falling sphere
Assis, Armando V D B; Branco, N S
2010-01-01T23:59:59.000Z
We obtain analitically the $v^2$ dependence of the drag force on a falling sphere close to the drag crisis, as well as the drag coefficient at the drag crisis, with excellent agreement with experiment. We take into account the effects of viscosity in creating a turbulent boundary layer and perform the calculations using the Navier-Stokes equation.
ColorFull -- a C++ library for calculations in SU(Nc) color space
Malin Sjodahl
2015-06-29T23:59:59.000Z
ColorFull, a C++ package for treating QCD color structure, is presented. ColorFull, which utilizes the trace basis approach, is intended for interfacing with event generators, but can also be used as a stand-alone package for squaring QCD amplitudes, calculating interferences, and describing the effect of gluon emission and gluon exchange.
Technical Note Neutron Skyshine Calculations with the Integral Line-Beam Method
Shultis, J. Kenneth
Technical Note Neutron Skyshine Calculations with the Integral Line-Beam Method Ah Auu Gui, J, and the excellent agreement indicates that the integral conical- and line-beam method is an effective alternative been developed. One of these meth- ods, the integral line-beam method, has been applied to both gamma
by nonadditive effects which make it impossible to sufficiently accurately represent the energy of water as a sumPolarizable interaction potential for water from coupled cluster calculations. I. Analysis of dimer potential energy surface Robert Bukowski,1 Krzysztof Szalewicz,1,a Gerrit C. Groenenboom,2 and Ad van der
ColorFull -- a C++ library for calculations in SU(Nc) color space
Malin Sjodahl
2014-12-12T23:59:59.000Z
ColorFull, a C++ package for treating QCD color structure, is presented. ColorFull, which utilizes the trace basis approach, is intended for interfacing with event generators, but can also be used as a stand-alone package for squaring QCD amplitudes, calculating interferences, and describing the effect of gluon emission and gluon exchange.
Assessing Student Learning We typically assess student learning in terms of their grades on
Champagne, Frances A.
need to be student-focused rather than instructor-focused. Focus on the learning resulting fromAssessing Student Learning We typically assess student learning in terms of their grades on quizzes should be linked to our learning objectives. To properly assess student learning, you need to know what
1Building virtual learning communities and the learning of mathematics teacher student
Spagnolo, Filippo
1 1Building virtual learning communities and the learning of mathematics teacher student Salvador of learning for student teachers. Firstly, I shall describe the characteristics of the design of learning trajectories in a video-based learning environment focusing on the exploration of mathematics teaching to help
Promoting Self Directed Learning 1 Running head: PROMOTING SELF DIRECTED LEARNING
Paris-Sud XI, Université de
as incompatible. This is due to the origins of both types of learning environments which, when consideredPromoting Self Directed Learning 1 Running head: PROMOTING SELF DIRECTED LEARNING Promoting Self Directed Learning in Simulation Based Discovery Learning Environments through Intelligent Support Koen
Mangel, Marc
skills for multiple prey types. (3) The learning curve for acquiring new foraging skills is acceleratingLearning to be different: acquired skills, social learning, frequency dependence, and environmental Question: How does the ability to improve foraging skills by learning, and to transfer that learned
Status of the MILC calculation of electromagnetic contributions to pseudoscalar masses
S. Basak; A. Bazavov; C. Bernard; C. DeTar; E. Freeland; W. Freeman; J. Foley; Steven Gottlieb; U. M. Heller; J. E. Hetrick; J. Laiho; L. Levkova; M. Oktay; J. Osborn; R. L. Sugar; A. Torok; D. Toussaint; R. S. Van de Water; R. Zhou
2012-12-12T23:59:59.000Z
We calculate pseudoscalar masses on gauge configurations containing the effects of 2+1 flavors of dynamical asqtad quarks and quenched electromagnetism. The lattice spacings vary from 0.12 to 0.06 fm. The masses are fit with staggered chiral perturbation theory including NLO electromagnetic terms. We attempt to extract the fit parameters for the electromagnetic contributions, while taking into account the finite volume effects, and extrapolate them to the physical limit.
Eddy-current-induced multipole field calculations.
Sereno, N. S.; Kim, S. H.
2003-10-15T23:59:59.000Z
Time-varying magnetic fields of magnets in booster accelerators induce substantial eddy currents in the vacuum chambers. The eddy currents in turn act to produce various multipole fields that act on the beam. These fields must be taken into account when doing a lattice design. In the APS booster, the relatively long dipole magnets (3 meters) are linearly ramped to accelerate the injected 325 MeV beam to 7 GeV. Substantial dipole and sextupole fields are generated in the elliptical vacuum chamber from the induced eddy currents. In this note, formulas for the induced dipole and sextupole fields are derived for elliptical and rectangular vacuum chambers for a time-varying dipole field. A discussion is given on how to generalize this derivation method to include eddy-current-induced multipole fields from higher multipole magnets (quadrupole, sextupole, etc.). Finally, transient effects are considered.
Clanton, John L
1956-01-01T23:59:59.000Z
BALANCE CALCULATIONS A Thesis By JOHN L. CLANTON Approved as to style and content by: Chairman of Commi e ad of Department TABLE OF CONTENTS 1. ABSTRACT Page Z. INTRODUCTION 3. REVIEW OF LITERATURE 4. DESCRIPTION OF KELLEY-SNYDER FIELD, 5... BALANCE EQUATION 1874(B. P. ) ~Ntb Wg bbl w bbls. Re scf/bbl v res bbls/sef 1756 1698 1647 1555 1546 1561 1589 60, 420, 88Z 7Z, 378, 937 85, 698, SS6 105, 707, 67Z 117, 57Z, I?6 1Z7, 690, 579 138, 151, 475 1, 199, 482 18, 909, 009 39...
Enhancing Curriculum Acceptance among Students with E-learning 2.0
Lakhtaria, Kamaljit I; Gandhi, Ankita
2010-01-01T23:59:59.000Z
E-learning; enhanced by communicating and interacting is becoming increasingly accepted and this puts Web 2.0 at the center of the new educational technologies. E-Learning 2.0 emerges as an innovative method of online learning for its incorporation of Web 2.0 tools. For any academic study, the curriculum provides overview of intact learning area. The Curriculum provides overview to content of the Subject. Many institutions place student interaction as a priority of their online curriculum design. It is proved that interaction has a great effect on the students' involvement in learning and acceptance of Curriculum. Students are accepting curriculum that is designed by teacher; whereas E-learning 2.0 enabled Curriculum management system allows student to involve in learning activities. It works as a stimulus and increases their dedication to the Curriculum. While Institute adapts E-Learning 2.0 as Learning Management System, it also provides Social Networking services and provides direct and transparent interac...
Linear calculations of edge current driven kink modes with BOUT++ code
Li, G. Q., E-mail: ligq@ipp.ac.cn; Xia, T. Y. [Institute of Plasma Physics, CAS, Hefei, Anhui 230031 (China); Lawrence Livermore National Laboratory, Livermore, California 94550 (United States); Xu, X. Q. [Lawrence Livermore National Laboratory, Livermore, California 94550 (United States); Snyder, P. B.; Turnbull, A. D. [General Atomics, San Diego, California 92186 (United States); Ma, C. H.; Xi, P. W. [Lawrence Livermore National Laboratory, Livermore, California 94550 (United States); FSC, School of Physics, Peking University, Beijing 100871 (China)
2014-10-15T23:59:59.000Z
This work extends previous BOUT++ work to systematically study the impact of edge current density on edge localized modes, and to benchmark with the GATO and ELITE codes. Using the CORSICA code, a set of equilibria was generated with different edge current densities by keeping total current and pressure profile fixed. Based on these equilibria, the effects of the edge current density on the MHD instabilities were studied with the 3-field BOUT++ code. For the linear calculations, with increasing edge current density, the dominant modes are changed from intermediate-n and high-n ballooning modes to low-n kink modes, and the linear growth rate becomes smaller. The edge current provides stabilizing effects on ballooning modes due to the increase of local shear at the outer mid-plane with the edge current. For edge kink modes, however, the edge current does not always provide a destabilizing effect; with increasing edge current, the linear growth rate first increases, and then decreases. In benchmark calculations for BOUT++ against the linear results with the GATO and ELITE codes, the vacuum model has important effects on the edge kink mode calculations. By setting a realistic density profile and Spitzer resistivity profile in the vacuum region, the resistivity was found to have a destabilizing effect on both the kink mode and on the ballooning mode. With diamagnetic effects included, the intermediate-n and high-n ballooning modes can be totally stabilized for finite edge current density.
Monte Carlo uncertainty reliability and isotope production calculations for a fast reactor
Miles, T.L.
1992-01-01T23:59:59.000Z
Statistical uncertainties in Monte Carlo calculations are typically determined by the first and second moments of the tally. For certain types of calculations, there is concern that the uncertainty estimate is significantly non-conservative. This is typically seen in reactor eigenvalue problems where the uncertainty estimate is aggravated by the generation-to-generation fission source. It has been speculated that optimization of the random walk, through biasing techniques, may increase the non-conservative nature of the uncertainty estimate. A series of calculations are documented here which quantify the reliability of the Monte Carlo Neutron and Photon (MCNP) mean and uncertainty estimates by comparing these estimates to the true mean. These calculations were made with a liquid metal fast reactor model, but every effort was made to isolate the statistical nature of the uncertainty estimates so that the analysis of the reliability of the MCNP estimates should be relevant for small thermal reactors as well. Also, preliminary reactor physics calculations for two different special isotope production test assemblies for irradiation in the Fast Flux Test Facility (FFTF) were performed using MCNP and are documented here. The effect of an yttrium-hydride moderator to tailor the neutron flux incident on the targets to maximize isotope production for different designs in different locations within the reactor is discussed. These calculations also demonstrate the useful application of MCNP in design iterations by utilizing many of the codes features.
Project PROCEED and Continuous Learning
Cohen, K. C.
1982-01-01T23:59:59.000Z
The concept of learning as a continuous activity, meshing appropriately with one's work environment around real on-the-job problem-solving needs, is gaining increasing popularity. Project PROCEED (Program for Continuing ...
Social Learning in Social Networks
Lamberson, PJ
This paper analyzes a model of social learning in a social network. Agents decide whether or not to adopt a new technology with unknown payoffs based on their prior beliefs and the experiences of their neighbors in the ...
DOE Online Learning Center (OLC)
Broader source: Energy.gov [DOE]
DOE Online Learning Center offers SkillSoft online courses that can lead to business, desktop and IT professional certifications. The online classes can be accessed 365 days a year from any desktop and are completed at your own pace
Marquette University Learning Assessment Plan
Reid, Scott A.
(analytical, inorganic, organic, and physical chemistry). Grades in three of the designated core courses (CHEMMarquette University Learning Assessment Plan Chemistry Program: Chemistry Degree: M.S. Date to a scientific audience. Present chemistry research accurately Utilize appropriate presentation graphics; Answer
Multiclass learning with simplex coding
Mroueh, Youssef
In this paper we discuss a novel framework for multiclass learning, defined by a suitable coding/decoding strategy, namely the simplex coding, that allows us to generalize to multiple classes a relaxation approach commonly ...
SPANISH STUDIES Program Learning Outcomes
California at Santa Cruz, University of
SPANISH STUDIES Program Learning Outcomes 1. Students will achieve advanced language proficiency in Spanish: they will have the ability to narrate language and literacy skills in Spanish: Students will acquire a foundation
Learning task-specific similarity
Shakhnarovich, Gregory
2006-01-01T23:59:59.000Z
The right measure of similarity between examples is important in many areas of computer science. In particular it is a critical component in example-based learning methods. Similarity is commonly defined in terms of a ...
Li, Jin, Ph. D. Massachusetts Institute of Technology
2007-01-01T23:59:59.000Z
This thesis is a collection of three independent essays that study the implication of learning on labor mobility, labor supply, wage distribution, wage dynamics, and allocations of workers under different assumptions about ...
Enhancing the Engineering Curriculum: Defining Discovery Learning at Marquette University
Nagurka, Mark L.
learning is a form of student-centered learning in which the focus shifts from the teacher to the learn, student-centered learning, active learning. I. INTRODUCTION The College of Engineering at Marquette forms of experiential learning. Other schools include student-centered learning methods, such as active
Yang, W. [Shanghai Nuclear Engineering Research and Design Inst., Hong Cao road 29, Shanghai (China); Dept. of Nuclear Engineering, Xi'an Jiaotong Univ., Xian Ning west road 28, Xi'an, Shaanxi (China); Wu, H.; Cao, L. [Dept. of Nuclear Engineering, Xi'an Jiaotong Univ., Xian Ning west road 28, Xi'an, Shaanxi (China)
2012-07-01T23:59:59.000Z
More and more MOX fuels are used in all over the world in the past several decades. Compared with UO{sub 2} fuel, it contains some new features. For example, the neutron spectrum is harder and more resonance interference effects within the resonance energy range are introduced because of more resonant nuclides contained in the MOX fuel. In this paper, the wavelets scaling function expansion method is applied to study the resonance behavior of plutonium isotopes within MOX fuel. Wavelets scaling function expansion continuous-energy self-shielding method is developed recently. It has been validated and verified by comparison to Monte Carlo calculations. In this method, the continuous-energy cross-sections are utilized within resonance energy, which means that it's capable to solve problems with serious resonance interference effects without iteration calculations. Therefore, this method adapts to treat the MOX fuel resonance calculation problem natively. Furthermore, plutonium isotopes have fierce oscillations of total cross-section within thermal energy range, especially for {sup 240}Pu and {sup 242}Pu. To take thermal resonance effect of plutonium isotopes into consideration the wavelet scaling function expansion continuous-energy resonance calculation code WAVERESON is enhanced by applying the free gas scattering kernel to obtain the continuous-energy scattering source within thermal energy range (2.1 eV to 4.0 eV) contrasting against the resonance energy range in which the elastic scattering kernel is utilized. Finally, all of the calculation results of WAVERESON are compared with MCNP calculation. (authors)
Monte Carlo calculations of the physical properties of RDX, {beta}-HMX, and TATB
Sewell, T.D.
1997-09-01T23:59:59.000Z
Atomistic Monte Carlo simulations in the NpT ensemble are used to calculate the physical properties of crystalline RDX, {beta}-HMX, and TATB. Among the issues being considered are the effects of various treatments of the intermolecular potential, inclusion of intramolecular flexibility, and simulation size dependence of the results. Calculations of the density, lattice energy, and lattice parameters are made over a wide range of pressures; thereby allowing for predictions of the bulk and linear coefficients of isothermal expansion of the crystals. Comparison with experiment is made where possible.
Office of Learning and Workforce Development (HC-20) | Department...
Office of Environmental Management (EM)
Learning and Workforce Development (HC-20) Office of Learning and Workforce Development (HC-20) Mission Statement and Function Statement The mission of the Office of Learning and...
Age Related Changes in Motion Perception and Perceptual Learning
Bower, Jeffrey Dennis
2010-01-01T23:59:59.000Z
simple stimuli after training. This type of learning differsfrom other types of learning in that it is hypothesized toin the other type of stimuli, transfer of learning between
Learning in human-dolphin interactions at zoological facilities
Sweeney, Diane L.
2009-01-01T23:59:59.000Z
expectations and the types of learning. Potential physicalevidence of multiple types of learning. In the spate ofis taken, multiple types of learning, beyond knowledge gain
Psychology and Aging Normal Aging and the Dissociable Prototype Learning
Maddox, W. Todd
-based and information-integration classification learning (Ashby & Mad- dox, 2005). Recent research suggests & Mad- dox, 2004). Another important type of classification learning is prototype learning (Homa
Binding Energies in Benzene Dimers: Nonlocal Density Functional Calculations
Aaron Puzder; Maxime Dion; David C. Langreth
2005-09-15T23:59:59.000Z
The interaction energy and minimum energy structure for different geometries of the benzene dimer has been calculated using the recently developed nonlocal correlation energy functional for calculating dispersion interactions. The comparison of this straightforward and relatively quick density functional based method with recent calculations can elucidate how the former, quicker method might be exploited in larger more complicated biological, organic, aromatic, and even infinite systems such as molecules physisorbed on surfaces, and van der Waals crystals.
A Cosmology Calculator for the World Wide Web
Edward L. Wright
2006-10-10T23:59:59.000Z
A cosmology calculator that computes times and distances as a function of redshift for user-defined cosmological parameters is available on the World Wide Web. This note gives the formulae used by the cosmology calculator and discusses some of its implementation. A version of the calculator that allows one to specify the equation of state parameter w and w' and neutrino masses, and a version for converting the light travel times usually given in the popular press into redshifts are also available.
High precision electrostatic potential calculations for cylindrically symmetric lenses
Edwards, David Jr. [238 Marylyn Lane, Newark, Vermont 05871 (United States)
2007-02-15T23:59:59.000Z
A method is developed for a potential calculation within cylindrically symmetric electrostatic lenses using mesh relaxation techniques, and it is capable of considerably higher accuracies than currently available. The method involves (i) creating very high order algorithms (orders of 6, 8, and 10) for determining the potentials at points in the net using surrounding point values, (ii) eliminating the effect of the large errors caused by singular points, and (iii) reducing gradients in the high gradient regions of the geometry, thereby allowing the algorithms used in these regions to achieve greater precisions--(ii) and (iii) achieved by the use of telescopic multiregions. In addition, an algorithm for points one unit from a metal surface is developed, allowing general mesh point algorithms to be used in these situations, thereby taking advantage of the enhanced precision of the latter. A maximum error function dependent on a sixth order gradient of the potential is defined. With this the single point algorithmic errors are able to be viewed over the entire net. Finally, it is demonstrated that by utilizing the above concepts and procedures, the potential of a point in a reasonably high gradient region of a test geometry can realize a precision of less than 10{sup -10}.
BENCHMARKING UPGRADED HOTSPOT DOSE CALCULATIONS AGAINST MACCS2 RESULTS
Brotherton, Kevin
2009-04-30T23:59:59.000Z
The radiological consequence of interest for a documented safety analysis (DSA) is the centerline Total Effective Dose Equivalent (TEDE) incurred by the Maximally Exposed Offsite Individual (MOI) evaluated at the 95th percentile consequence level. An upgraded version of HotSpot (Version 2.07) has been developed with the capabilities to read site meteorological data and perform the necessary statistical calculations to determine the 95th percentile consequence result. These capabilities should allow HotSpot to join MACCS2 (Version 1.13.1) and GENII (Version 1.485) as radiological consequence toolbox codes in the Department of Energy (DOE) Safety Software Central Registry. Using the same meteorological data file, scenarios involving a one curie release of {sup 239}Pu were modeled in both HotSpot and MACCS2. Several sets of release conditions were modeled, and the results compared. In each case, input parameter specifications for each code were chosen to match one another as much as the codes would allow. The results from the two codes are in excellent agreement. Slight differences observed in results are explained by algorithm differences.
Considerations of beta and electron transport in internal dose calculations
Bolch, W.E.; Poston, J.W. Sr.
1990-12-01T23:59:59.000Z
Ionizing radiation has broad uses in modern science and medicine. These uses often require the calculation of energy deposition in the irradiated media and, usually, the medium of interest is the human body. Energy deposition from radioactive sources within the human body and the effects of such deposition are considered in the field of internal dosimetry. In July of 1988, a three-year research project was initiated by the Nuclear Engineering Department at Texas A M University under the sponsorship of the US Department of Energy. The main thrust of the research was to consider, for the first time, the detailed spatial transport of electron and beta particles in the estimation of average organ doses under the Medical Internal Radiation Dose (MIRD) schema. At the present time (December of 1990), research activities are continuing within five areas. Several are new initiatives begun within the second or third year of the current contract period. They include: (1) development of small-scale dosimetry; (2) development of a differential volume phantom; (3) development of a dosimetric bone model; (4) assessment of the new ICRP lung model; and (5) studies into the mechanisms of DNA damage. A progress report is given for each of these tasks within the Comprehensive Report. In each case, preliminary results are very encouraging and plans for further research are detailed within this document.
Development of nuclear models for higher energy calculations
Bozoian, M.; Siciliano, E.R.; Smith, R.D.
1988-01-01T23:59:59.000Z
Two nuclear models for higher energy calculations have been developed in the regions of high and low energy transfer, respectively. In the former, a relativistic hybrid-type preequilibrium model is compared with data ranging from 60 to 800 MeV. Also, the GNASH exciton preequilibrium-model code with higher energy improvements is compared with data at 200 and 318 MeV. In the region of low energy transfer, nucleon-nucleus scattering is predominately a direct reaction involving quasi-elastic collisions with one or more target nucleons. We discuss various aspects of quasi-elastic scattering which are important in understanding features of cross sections and spin observables. These include (1) contributions from multi-step processes; (2) damping of the continuum response from 2p-2h excitations; (3) the ''optimal'' choice of frame in which to evaluate the nucleon-nucleon amplitudes; and (4) the effect of optical and spin-orbit distortions, which are included in a model based on the RPA the DWIA and the eikonal approximation. 33 refs., 15 figs.
Cascade calculation of subthreshold. pi. sup 0 production
Gavron, A.; Yariv, Y. (Physics Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (US))
1990-05-01T23:59:59.000Z
Intranuclear cascade calculations are found to provide a good description of the various features of subthreshold {pi}{sup 0} production in nucleon-nucleus collisions.
Building America Webinar: HVAC Right-Sizing Part 1-Calculating...
Team IBACOS highlighted the key criteria required to create accurate heating and cooling load calculations. Current industry rules of thumb, perceptions and barriers to...
A Method for Calculating Reference Evapotranspiration on Daily Time Scales
Farmer, William
Measures of reference evapotranspiration are essential for applications of agricultural management and water resources engineering. Using numerous esoteric variables, one can calculate daily reference evapotranspiration ...
Energy Cost Savings Calculator for Commercial Boilers: Closed...
Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site
Commercial Boilers: Closed Loop, Space Heating Applications Only Energy Cost Savings Calculator for Commercial Boilers: Closed Loop, Space Heating Applications Only This cost...
Energy savings estimates and cost benefit calculations for high...
Office of Scientific and Technical Information (OSTI)
Energy savings estimates and cost benefit calculations for high performance relocatable classrooms Citation Details In-Document Search Title: Energy savings estimates and cost...
AIM: Web-Based, Residential Energy Calculator for Homeowners
Marshall, K.; Moss, M.; Liu, B.; Culp, C.; Haberl, J.; Herbert, C.
2010-01-01T23:59:59.000Z
for simulations in existing homes, are automatically provided using statistical tables. This allows homeowners to use the calculator with information commonly available during a real estate transaction....
Field Studies of Subjective Effects on Thermal Comfort in a University Classroom
Wang, J.; Wang, Z.
2006-01-01T23:59:59.000Z
. The students' thermal acceptability of the thermal environment before learning the theory of thermal comfort is higher than after learning about thermal comfort. These results confirm the existence of subjective effects on thermal comfort....
Field Studies of Subjective Effects on Thermal Comfort in a University Classroom
Wang, J.; Wang, Z.
2006-01-01T23:59:59.000Z
. The students' thermal acceptability of the thermal environment before learning the theory of thermal comfort is higher than after learning about thermal comfort. These results confirm the existence of subjective effects on thermal comfort....
National Wind Distance Learning Collaborative
Dr. James B. Beddow
2013-03-29T23:59:59.000Z
Executive Summary The energy development assumptions identified in the Department of Energy's position paper, 20% Wind Energy by 2030, projected an exploding demand for wind energy-related workforce development. These primary assumptions drove a secondary set of assumptions that early stage wind industry workforce development and training paradigms would need to undergo significant change if the workforce needs were to be met. The current training practice and culture within the wind industry is driven by a relatively small number of experts with deep field experience and knowledge. The current training methodology is dominated by face-to-face, classroom based, instructor present training. Given these assumptions and learning paradigms, the purpose of the National Wind Distance Learning Collaborative was to determine the feasibility of developing online learning strategies and products focused on training wind technicians. The initial project scope centered on (1) identifying resources that would be needed for development of subject matter and course design/delivery strategies for industry-based (non-academic) training, and (2) development of an appropriate Learning Management System (LMS). As the project unfolded, the initial scope was expanded to include development of learning products and the addition of an academic-based training partner. The core partners included two training entities, industry-based Airstreams Renewables and academic-based Lake Area Technical Institute. A third partner, Vision Video Interactive, Inc. provided technology-based learning platforms (hardware and software). The revised scope yielded an expanded set of results beyond the initial expectation. Eight learning modules were developed for the industry-based Electrical Safety course. These modules were subsequently redesigned and repurposed for test application in an academic setting. Software and hardware developments during the project's timeframe enabled redesign providing for student access through the use of tablet devices such as iPads. Early prototype Learning Management Systems (LMS) featuring more student-centric access and interfaces with emerging social media were developed and utilized during the testing applications. The project also produced soft results involving cross learning between and among the partners regarding subject matter expertise, online learning pedagogy, and eLearning technology-based platforms. The partners believe that the most significant, overarching accomplishment of the project was the development and implementation of goals, activities, and outcomes that significantly exceeded those proposed in the initial grant application submitted in 2009. Key specific accomplishments include: (1) development of a set of 8 online learning modules addressing electrical safety as it relates to the work of wind technicians; (3) development of a flexible, open-ended Learning Management System (LMS): (3) creation of a robust body of learning (knowledge, experience, skills, and relationships). Project leaders have concluded that there is substantial resource equity that could be leverage and recommend that it be carried forward to pursue a Next Stage Opportunity relating to development of an online core curriculum for institute and community college energy workforce development programs.
Lung Dose Calculation With SPECT/CT for {sup 90}Yittrium Radioembolization of Liver Cancer
Yu, Naichang, E-mail: yun@ccf.org [Department of Radiation Oncology, Cleveland Clinic, Cleveland, OH (United States)] [Department of Radiation Oncology, Cleveland Clinic, Cleveland, OH (United States); Srinivas, Shaym M.; DiFilippo, Frank P.; Shrikanthan, Sankaran [Department of Nuclear Medicine, Cleveland Clinic, Cleveland, OH (United States)] [Department of Nuclear Medicine, Cleveland Clinic, Cleveland, OH (United States); Levitin, Abraham; McLennan, Gordon; Spain, James [Department of Interventional Radiology, Cleveland Clinic, Cleveland, OH (United States)] [Department of Interventional Radiology, Cleveland Clinic, Cleveland, OH (United States); Xia, Ping; Wilkinson, Allan [Department of Radiation Oncology, Cleveland Clinic, Cleveland, OH (United States)] [Department of Radiation Oncology, Cleveland Clinic, Cleveland, OH (United States)
2013-03-01T23:59:59.000Z
Purpose: To propose a new method to estimate lung mean dose (LMD) using technetium-99m labeled macroaggregated albumin ({sup 99m}Tc-MAA) single photon emission CT (SPECT)/CT for {sup 90}Yttrium radioembolization of liver tumors and to compare the LMD estimated using SPECT/CT with clinical estimates of LMD using planar gamma scintigraphy (PS). Methods and Materials: Images of 71 patients who had SPECT/CT and PS images of {sup 99m}Tc-MAA acquired before TheraSphere radioembolization of liver cancer were analyzed retrospectively. LMD was calculated from the PS-based lung shunt assuming a lung mass of 1 kg and 50 Gy per GBq of injected activity shunted to the lung. For the SPECT/CT-based estimate, the LMD was calculated with the activity concentration and lung volume derived from SPECT/CT. The effect of attenuation correction and the patient's breathing on the calculated LMD was studied with the SPECT/CT. With these effects correctly taken into account in a more rigorous fashion, we compared the LMD calculated with SPECT/CT with the LMD calculated with PS. Results: The mean dose to the central region of the lung leads to a more accurate estimate of LMD. Inclusion of the lung region around the diaphragm in the calculation leads to an overestimate of LMD due to the misregistration of the liver activity to the lung from the patient's breathing. LMD calculated based on PS is a poor predictor of the actual LMD. For the subpopulation with large lung shunt, the mean overestimation from the PS method for the lung shunt was 170%. Conclusions: A new method of calculating the LMD for TheraSphere and SIR-Spheres radioembolization of liver cancer based on {sup 99m}Tc-MAA SPECT/CT is presented. The new method provides a more accurate estimate of radiation risk to the lungs. For patients with a large lung shunt calculated from PS, a recalculation of LMD based on SPECT/CT is recommended.
Euler - Heisenberg effective action and magnetoelectric effect in multilayer graphene
M. I. Katsnelson; G. E. Volovik; M. A. Zubkov
2013-01-24T23:59:59.000Z
The low energy effective field model for the multilayer graphene (at ABC stacking) is considered. We calculate the effective action in the presence of constant external magnetic field $B$ (normal to the graphene sheet). We also calculate the first two corrections to this effective action caused by the in-plane electric field $E$ at $E/B \\ll 1$ and discuss the magnetoelectric effect. In addition, we calculate the imaginary part of the effective action in the presence of constant electric field $E$ and the lowest order correction to it due to the magnetic field ($B/E \\ll 1$).
Computing Partial Eigenvalue Sum in Electronic Structure Calculations
Bai, Zhaojun
and CPU time. In the application of electronic structure calculations in molecular dynamics, the newComputing Partial Eigenvalue Sum in Electronic Structure Calculations Z. Bai M. Faheyy G. Golubz M where computation of the total energy of an electronic structure requires the evaluation of partial
Dynamic Algorithm Selection in Parallel GAMESS Calculations Nurzhan Ustemirov
Sosonkina, Masha
and Molecular Electronic Structure System (GAMESS) used for ab initio molecular quantum chemistry calculationsDynamic Algorithm Selection in Parallel GAMESS Calculations Nurzhan Ustemirov Masha Sosonkina, network, or disk I/O. For large-scale scientific applications, dynamic adjustments to a computationally
Processus communicants Communication synchrone CSP/CCS/-calcul
Grigoras, .Romulus
Processus communicants Communication synchrone CSP/CCS/-calcul Rendez-vous étendu Ada Huitième partie Processus communicants CSP/Ada Systèmes concurrents 2 / 44 #12;Processus communicants Communication synchrone CSP/CCS/-calcul Rendez-vous étendu Ada Principes Synchronisation Désignation
Independent review of SCDAP/RELAP5 natural circulation calculations
Martinez, G.M.; Gross, R.J.; Martinez, M.J.; Rightley, G.S.
1994-01-01T23:59:59.000Z
A review and assessment of the uncertainties in the calculated response of reactor coolant system natural circulation using the SCDAP/RELAP5 computer code were completed. The SCDAP/RELAP5 calculation modeled a station blackout transient in the Surry nuclear power plant and concluded that primary system depressurization from natural circulation induced primary system failure is more likely than previously thought.
Recap Lecture 1 Concepts of Supervised Learning (SL)
Shi, Qinfeng "Javen"
) Main types of Supervised Learning Classification Novelty detection Regression 3 Classification Learning (SL) Classification algorithms Supervised Learning definition revisit Main types of Supervised Learning Classification Novelty detection Regression Main types of SL We have (input, correct output
Arts-Infused Learning in Middle Level Classrooms
Lorimer, Maureen R.
2011-01-01T23:59:59.000Z
rich portrait of the types of learning and learning outcomesuncovered the types of arts-infused learning, along with thetypes of activities) and quality of arts-infused learning (
Dark matter effective field theory scattering in direct detection experiments
K. Schneck; B. Cabrera; D. G. Cerdeno; V. Mandic; H. E. Rogers; R. Agnese; A. J. Anderson; M. Asai; D. Balakishiyeva; D. Barker; R. Basu Thakur; D. A. Bauer; J. Billard; A. Borgland; D. Brandt; P. L. Brink; R. Bunker; D. O. Caldwell; R. Calkins; H. Chagani; Y. Chen; J. Cooley; B. Cornell; C. H. Crewdson; P. Cushman; M. Daal; P. C. F. Di Stefano; T. Doughty; L. Esteban; S. Fallows; E. Figueroa-Feliciano; G. L. Godfrey; S. R. Golwala; J. Hall; H. R. Harris; T. Hofer; D. Holmgren; L. Hsu; M. E. Huber; D. M. Jardin; A. Jastram; O. Kamaev; B. Kara; M. H. Kelsey; A. Kennedy; A. Leder; B. Loer; E. Lopez Asamar; P. Lukens; R. Mahapatra; K. A. McCarthy; N. Mirabolfathi; R. A. Moffatt; J. D. Morales Mendoza; S. M. Oser; K. Page; W. A. Page; R. Partridge; M. Pepin; A. Phipps; K. Prasad; M. Pyle; H. Qiu; W. Rau; P. Redl; A. Reisetter; Y. Ricci; A. Roberts; T. Saab; B. Sadoulet; J. Sander; R. W. Schnee; S. Scorza; B. Serfass; B. Shank; D. Speller; D. Toback; S. Upadhyayula; A. N. Villano; B. Welliver; J. S. Wilson; D. H. Wright; X. Yang; S. Yellin; J. J. Yen; B. A. Young; J. Zhang
2015-06-22T23:59:59.000Z
We examine the consequences of the effective field theory (EFT) of dark matter-nucleon scattering for current and proposed direct detection experiments. Exclusion limits on EFT coupling constants computed using the optimum interval method are presented for SuperCDMS Soudan, CDMS II, and LUX, and the necessity of combining results from multiple experiments in order to determine dark matter parameters is discussed. We demonstrate that spectral differences between the standard dark matter model and a general EFT interaction can produce a bias when calculating exclusion limits and when developing signal models for likelihood and machine learning techniques. We also discuss the implications of the EFT for the next-generation (G2) direct detection experiments and point out regions of complementarity in the EFT parameter space.
6.867 Machine Learning, Fall 2002
Jaakkola, Tommi S. (Tommi Sakari)
Principles, techniques, and algorithms in machine learning from the point of view of statistical inference; representation, generalization, and model selection; and methods such as linear/additive models, active learning, ...
Learning Usability Assessment Models for Web Sites
Davis, Paul
2012-02-14T23:59:59.000Z
This research explores an approach to learning types of usability concerns considered useful for the management of Web sites and to identifying usability concerns based on these learned models. By having one or more Web site managers rate a subset...
Early word learning through communicative inference
Frank, Michael C., Ph. D. Massachusetts Institute of Technology
2010-01-01T23:59:59.000Z
How do children learn their first words? Do they do it by gradually accumulating information about the co-occurrence of words and their referents over time, or are words learned via quick social inferences linking what ...
On Learning Algorithms for Nash Equilibria
Daskalakis, Constantinos
Can learning algorithms find a Nash equilibrium? This is a natural question for several reasons. Learning algorithms resemble the behavior of players in many naturally arising games, and thus results on the convergence or ...
09s1: COMP9417 Machine Learning and Data Mining Machine Learning for Numeric
Bain, Mike
· define the problem of non-linear regression · define neural network learning in terms of non-linear the regression and model tree approaches for non-linear regression COMP9417: April 1, 2009 Machine Learning learning) learning non-linear predictors via hidden nodes between input and output · regression trees
WRITING EXPECTED LEARNING OUTCOMES FOR AWRITING EXPECTED LEARNING OUTCOMES FOR A COURSECOURSE
Rock, Chris
for a course, it is a good idea to think broadly. Course-level expected learning outcomes do not need to focus will know). Be sure to include learning outcomes that describe what the student can do and who they are2424 WRITING EXPECTED LEARNING OUTCOMES FOR AWRITING EXPECTED LEARNING OUTCOMES FOR A COURSECOURSE
Developing Program Learning Outcomes Page 1 DevelopingProgramLearningOutcomes
Dyer, Bill
..." you help ensure that the focus is on student learning and abilities. These are not student learning, 2011, R. W. Larsen Student learning outcomes (SLOs) can be written for a course, a program, or an institution. This document focuses specifically on learning outcomes for programs (e.g., degree programs
Scaffolding Self-Explanation to Improve Learning in Exploratory Learning Environments.
Bunt, Andrea
explore the available instructional material [11]. In theory, this type of active learning should enable of open learning environments for different types of learners, we have been working on devising adaptiveScaffolding Self-Explanation to Improve Learning in Exploratory Learning Environments. Andrea Bunt
Using Learning Styles and Preferences to Incorporate Emerging E-learning Tools in Teaching
Yang, Yun
across all learner types. 1. Introduction The adoption level of emerging e-learning tools is on the riseUsing Learning Styles and Preferences to Incorporate Emerging E-learning Tools in Teaching Nauman@ict.swin.edu.au Abstract Emerging e-learning tools have the potential to enrich academic environments. However
1654 Learning and memory Perceptual and motor factors of implicit skill learning
Nemeth, Dezso
, auditory, etc.), and into consciousness types (implicit and explicit) [2]. Implicit motor skill learning1654 Learning and memory Perceptual and motor factors of implicit skill learning Dezso Nemetha,b , Emese Hallgato´a , Karolina Janacseka , Timea Sa´ndora and Zsuzsa Londec Implicit skill learning
Reinforcement Learning in the brain Reading: Y Niv, Reinforcement learning in the brain, 2009.
Seriès, Peggy
basic types of animal conditioning animal learning) ow do these relate to RL? 20 Monday, 8 March 2010Reinforcement Learning in the brain · Reading: Y Niv, Reinforcement learning in the brain, 2009. wo Reinforcement learning and the brain: the problems we face all day · Decision making at all levels
Why Machine Learning and Games? Machine Learning in Video Games
Hunt, Galen
Controller Car Behaviour AI Driving Drivatar Racing Line Behaviour Model Drivatar Learning System Drivatar AI Driving #12;#12;Two phase process: 1. Pre-generate possible racing lines prior to the race from Conclusions #12;Adaptive avatar for driving Separate game mode Basis of all in-game AI Basis of "dynamic
What is Machine Learning? About the Course Example Machine Learning
Kjellström, Hedvig
of the course Written exam (tentamen) Four labs Bonus Points Each lab finished (successfully examined) before its deadline gives one bonus point. Max bonus (=4) raises the final grade one step. Bonus can not save you from F (failed). Bonus points can not be saved to next year. What is Machine Learning? About
What is Machine Learning? About the Course Example Machine Learning
Kjellström, Hedvig
of the course Written exam (tentamen) Four labs Bonus Points Each lab finished (successfully examined) before its deadline gives one bonus point. Max bonus (=4) raises the final grade one step. Bonus can not save you from F (failed). Bonus points can not be saved to next year. #12;What is Machine Learning? About
Hyperparameter Learning for Graph Based Semi-supervised Learning Algorithms
Lee, Wee Sun
Statistical Machine Learning Program National ICT Australia, Canberra, Australia and CSL, RSISE, ANU, Canberra, Australia xinhua.zhang@nicta.com.au Wee Sun Lee Department of Computer Science National University for the harmonic energy minimization method; this is done by minimizing the leave-one-out prediction error
Learning inverse kinematics via crosspoint function decomposition
Torras, Carme
industrial robots, that greatly reduces the number of movements needed to learn or relearn the IK to a given
Webinar: National Hydrogen Learning Demonstration Status
Broader source: Energy.gov [DOE]
Video recording and text version of the webinar, "National Hydrogen Learning Demonstration Status," originally presented on February 6, 2012.
Engaging Faculty With Rethinking Learning and Teaching With Technology
Szmolyan, Peter
for student learning'. (within the lecture as well as out of class ) Shift the focus from `how do I teach this student learning - educational implications `learning time' / `learning space' During this presentation Online or face to face ? #12;"Learning is not a spectator sport. Students do not learn much just
MELCOR 1.8.2 calculations of selected sequences for the ABWR
Kmetyk, L.N.
1994-07-01T23:59:59.000Z
This report summarizes the results from MELCOR calculations of severe accident sequences in the ABWR and presents comparisons with MAAP calculations for the same sequences. MELCOR was run for two low-pressure and three high-pressure sequences to identify the materials which enter containment and are available for release to the environment (source terms), to study the potential effects of core-concrete interaction, and to obtain event timings during each sequence; the source terms include fission products and other materials such as those generated by core-concrete interactions. Sensitivity studies were done on the impact of assuming limestone rather than basaltic concrete and on the effect of quenching core debris in the cavity compared to having hot, unquenched debris present.
Holographic Calculation for Large Interval Rényi Entropy at High Temperature
Bin Chen; Jie-qiang Wu
2015-06-10T23:59:59.000Z
In this paper, we study the holographic R\\'enyi entropy of a large interval on a circle at high temperature for the two-dimensional CFT dual to pure AdS$_3$ gravity. In the field theory, the R\\'enyi entropy is encoded in the CFT partition function on $n$-sheeted torus connected with each other by a large branch cut. As proposed in 1412.0763, the effective way to read the entropy in the large interval limit is to insert a complete set of state bases of the twist sector at the branch cut. Then the calculation transforms into an expansion of four-point functions in the twist sector with respect to $e^{-\\frac{2\\pi TR}{n}}$. By using the operator product expansion of the twist operators at the branch points, we read the first few terms of the R\\'enyi entropy, including the leading and next-leading contributions in the large central charge limit. Moreover, we show that the leading contribution is actually captured by the twist vacuum module. In this case by the Ward identity the four-point functions can be derived from the correlation function of four twist operators, which is related to double interval entanglement entropy. Holographically, we apply the recipe in 1303.7221 and 1306.4682 to compute the classical R\\'enyi entropy and its 1-loop quantum correction, after imposing a new set of monodromy conditions. The holographic classical result matches exactly with the leading contribution in the field theory up to $e^{-4\\pi TR}$ and $l^6$, while the holographical 1-loop contribution is in exact agreement with next-leading results in field theory up to $e^{-\\frac{6\\pi TR}{n}}$ and $l^4$ as well.
A Framework for Lattice QCD Calculations on GPUs
Winter, Frank; Clark, M.A.; Edwards, Robert G.; Joo, Balint
2014-08-01T23:59:59.000Z
Computing platforms equipped with accelerators like GPUs have proven to provide great computational power. However, exploiting such platforms for existing scientific applications is not a trivial task. Current GPU programming frameworks such as CUDA C/C++ require low-level programming from the developer in order to achieve high performance code. As a result porting of applications to GPUs is typically limited to time-dominant algorithms and routines, leaving the remainder not accelerated which can open a serious Amdahl's law issue. The lattice QCD application Chroma allows to explore a different porting strategy. The layered structure of the software architecture logically separates the data-parallel from the application layer. The QCD Data-Parallel software layer provides data types and expressions with stencil-like operations suitable for lattice field theory and Chroma implements algorithms in terms of this high-level interface. Thus by porting the low-level layer one can effectively move the whole application in one swing to a different platform. The QDP-JIT/PTX library, the reimplementation of the low-level layer, provides a framework for lattice QCD calculations for the CUDA architecture. The complete software interface is supported and thus applications can be run unaltered on GPU-based parallel computers. This reimplementation was possible due to the availability of a JIT compiler (part of the NVIDIA Linux kernel driver) which translates an assembly-like language (PTX) to GPU code. The expression template technique is used to build PTX code generators and a software cache manages the GPU memory. This reimplementation allows us to deploy an efficient implementation of the full gauge-generation program with dynamical fermions on large-scale GPU-based machines such as Titan and Blue Waters which accelerates the algorithm by more than an order of magnitude.
A Framework for Lattice QCD Calculations on GPUs
F. T. Winter; M. A. Clark; R. G. Edwards; B. Joó
2014-08-25T23:59:59.000Z
Computing platforms equipped with accelerators like GPUs have proven to provide great computational power. However, exploiting such platforms for existing scientific applications is not a trivial task. Current GPU programming frameworks such as CUDA C/C++ require low-level programming from the developer in order to achieve high performance code. As a result porting of applications to GPUs is typically limited to time-dominant algorithms and routines, leaving the remainder not accelerated which can open a serious Amdahl's law issue. The lattice QCD application Chroma allows to explore a different porting strategy. The layered structure of the software architecture logically separates the data-parallel from the application layer. The QCD Data-Parallel software layer provides data types and expressions with stencil-like operations suitable for lattice field theory and Chroma implements algorithms in terms of this high-level interface. Thus by porting the low-level layer one can effectively move the whole application in one swing to a different platform. The QDP-JIT/PTX library, the reimplementation of the low-level layer, provides a framework for lattice QCD calculations for the CUDA architecture. The complete software interface is supported and thus applications can be run unaltered on GPU-based parallel computers. This reimplementation was possible due to the availability of a JIT compiler (part of the NVIDIA Linux kernel driver) which translates an assembly-like language (PTX) to GPU code. The expression template technique is used to build PTX code generators and a software cache manages the GPU memory. This reimplementation allows us to deploy an efficient implementation of the full gauge-generation program with dynamical fermions on large-scale GPU-based machines such as Titan and Blue Waters which accelerates the algorithm by more than an order of magnitude.
Online learning processes artificial neural networks
Heskes, Tom
Online learning processes in artificial neural networks Tom M. Heskes Bert Kappen Department, The Netherlands. Abstract We study online learning processes in artificial neural networks from a general point. Elsevier, pages 199-- 233. #12; Online learning processes in artificial neural networks 1 1 Introduction 1
Environmental Restoration Disposal Facility Lessons Learned
Caulfield, R.
2012-07-12T23:59:59.000Z
The purpose of lessons learned is to identify insight gained during a project – successes or failures – that can be applied on future projects. Lessons learned can contribute to the overall success of a project by building on approaches that have worked well and avoiding previous mistakes. Below are examples of lessons learned during ERDF’s ARRA-funded expansion project.
LANGUAGE LEARNING AND NONLINEAR DYNAMICAL SYSTEMS
Andrews, Mark W.
LANGUAGE LEARNING AND NONLINEAR DYNAMICAL SYSTEMS A Dissertation Presented to the Faculty LEARNING AND NONLINEAR DYNAMICAL SYSTEMS Mark William Andrews, Ph.D. Cornell University 2003 The thesis be provided by an better appreciation of the capacities of nonlinear dynamical systems to learn, rep- resent
Spring 2012 Mobile Learning Scholars Assessment Report
Barrash, Warren
is an immersive semester of exploration focused on leveraging mobile learning strategies to achieve course goals and on student learning. During the Spring 2012 semester, two cohorts of faculty were supported. Each faculty of the experience was assessed in the following ways: a) students enrolled in these mLearning courses were surveyed
Service-Learning & Student Civic Engagement
Service-Learning & Student Civic Engagement: Journeys toward Discovery, Contribution & Civic is service-learning? Intentional student engagement that combines community service with academic instruction and/or co-curricular learning that is focused on critical, reflective thinking and civic
PUNCTUATED ANYTIME LEARNING FOR EVOLUTIONARY ROBOTICS
Parker, Gary B.
PUNCTUATED ANYTIME LEARNING FOR EVOLUTIONARY ROBOTICS GARY B. PARKER and KAREN J. LAROCHELLE-line on a simple model while periodic checks on the actual robot help to improve the learning system's output. We discuss this concept by learning gaits for a hexapod robot, which is modeled after the ServoBot. We use
PUNCTUATED ANYTIME LEARNING FOR EVOLUTIONARY ROBOTICS
Parker, Gary B.
PUNCTUATED ANYTIME LEARNING FOR EVOLUTIONARY ROBOTICS GARY B. PARKER and KAREN J. LAROCHELLEÂline on a simple model while periodic checks on the actual robot help to improve the learning system's output. We discuss this concept by learning gaits for a hexapod robot, which is modeled after the ServoBot. We use
Learning Structured Perceptrons for Coreference Resolution
Reyle, Uwe
Conclusion 2 #12;Title Breakdown Learning Structured Perceptrons for Coreference Resolution with Latent president and chief operating officer, succeeding [Gary Wilber]. 3 #12;Title Breakdown Learning Structured president and chief operating officer, succeeding [Gary Wilber]. 3 #12;Title Breakdown Learning Structured
Learning Artistic Lighting Template from Portrait Photographs
Zhu, Song Chun
Learning Artistic Lighting Template from Portrait Photographs Xin Jin1 , Mingtian Zhao2,3 , Xiaowu artistic portrait lighting template from a dataset of artistic and daily portrait photographs. The learned aesthetic quality assess- ment of these photographs in lighting usage. For learning the template, we adopt
ARTIFICIAL INTELLIGENCE Learning to see and act
Meeden, Lisa A.
ARTIFICIAL INTELLIGENCE Learning to see and act An artificial-intelligence system uses machine to process large amounts of data have led to progress in many areas of science, not least artificial intelligence (AI). With advances in machine learning has come the development of machines that can learn
The Computational Cognitive Neuroscience of Learning and
Elsevier Ltd. All rights reserved 77 #12;experience. We will briefly discuss1 these three types of learning and reinforcement-learning tasks differ in the type of feedback received by the learner (i.e., explicit correction these three types of learning are instantiated in neural computations. One of the earliest proposals
META-LEARNING Concepts and Techniques
Vilalta, Ricardo
.g., types of example distributions) under which a learning strategy is most appropriate. From a practicalChapter 1 META-LEARNING Concepts and Techniques Ricardo Vilalta University of Houston Christophe Giraud-Carrier ELCA Informatique SA Pavel Brazdil University of Porto Abstract The field of meta-learning
Accelerated Learning without Semantic Similarity: Indirect Objects
Friedman, Nir
types. Transfer apparently facilitates the learning of this type of information from the input1 Accelerated Learning without Semantic Similarity: Indirect Objects ANAT NINIO* Abstract The hypothesis was tested that transfer and facilitation of learning in early syntactic development does not rely
Machine Learning for Signature Verification Harish Srinivasan
types of learning to be accomplished. In the first, the training set consists of genuines and forgeriesMachine Learning for Signature Verification Harish Srinivasan , Sargur N. Srihari and Matthew J it can be viewed as one that involves machine learning from a population of signatures. There are two
WestVirginiaUniversity SHRM Learning System
Mohaghegh, Shahab
of your tuition, you will receive the internationally recognized SHRM Learning System® which includesWestVirginiaUniversity ENROLL NOW SHRM Learning System Registration cost is $1,295 Early bird SHRM LEARNING SYSTEM COURSE Fall 2012 SHRM ESSENTIALS OF HR MANAGEMENT Spring 2013 Martina Bison
Henry and Fred Learn about Lead
Holsinger, Kent
Henry and Fred Learn about Lead Joan Bothell Activity book #12;Henry and Fred Learn about Lead the children's storybook Henry and Fred Learn about Lead/Enrique y Federico aprenden sobre el plomo (2003 of this activity book. The Henry and Fred storybook is about keeping children safe from lead poisoning, a serious
Learning Plan Section I: Student Data
Su, Xiao
and type of criminal activity or hazardous materials at or near the location of the learning activity, (e at the Learning Site, (g) the criminal, mental and social backgrounds of the individuals I will be working without permission the Learning Site's proprietary information, records or confidential information
First-principles Calculation of Excited State Spectra in QCD
Dudek, Jozef J. [Jefferson Laboratory, 12000 Jefferson Avenue Suite 1, Newport News, VA 23606 (United States); Department of Physics, Old Dominion University, Norfolk, VA 23529 (United States); Edwards, Robert G.; Richards, David G.; Thomas, Christopher E. [Jefferson Laboratory, 12000 Jefferson Avenue Suite 1, Newport News, VA 23606 (United States); Peardon, Michael J. [School of Mathematics, Trinity College, Dublin 2 (Ireland)
2011-05-24T23:59:59.000Z
Recent progress at understanding the excited state spectra of mesons and baryons is described. I begin by outlining the application of the variational method to compute the spectrum of QCD, and then present results for the excited meson spectrum, with continuum quantum numbers of the states clearly delineated. I emphasise the need to extend the calculation to encompass multi-hadron contributions, and describe a recent calculation of the I = 2{pi}{pi} energy-dependent phase shifts as a precursor to the study of channels with resonant behavior. I conclude with recent results for the low lying baryon spectrum, and the prospects for future calculations.
Multi-Center Electronic Structure Calculations for Plasma Equation of State
Wilson, B G; Johnson, D D; Alam, A
2010-12-14T23:59:59.000Z
We report on an approach for computing electronic structure utilizing solid-state multi-center scattering techniques, but generalized to finite temperatures to model plasmas. This approach has the advantage of handling mixtures at a fundamental level without the imposition of ad hoc continuum lowering models, and incorporates bonding and charge exchange, as well as multi-center effects in the calculation of the continuum density of states.
A Mathematica Package for Calculation of One-Loop Penguins in FCNC Processes
A. V. Bednyakov; S. H. Tanyildizi
2014-09-04T23:59:59.000Z
In this work, we present a Mathematica package Peng4BSM@LO which calculates the contributions to the Wilson Coefficients of certain effective operators originating from the one-loop penguin Feynman diagrams. Both vector and scalar external legs are considered. The key feature of our package is the ability to find the corresponding expressions in almost any New Physics model which extends the SM and has no flavour changing neutral current (FCNC) transitions at the tree level.
Atmospheric radiative transfer parametrization for solar energy yield calculations on buildings
Wagner, Jochen E
2015-01-01T23:59:59.000Z
In this paper the practical approach to evaluate the incoming solar radiation on buildings based on atmospheric composition and cloud cover is presented. The effects of absorption and scattering due to atmospheric composition is taken into account to calculate, using radiative transfer models, the net incoming solar radiation at surface level. A specific validation of the Alpine Region in Europe is presented with a special focus on the region of South Tyrol.
Wakefield Calculations for the LCLS in Multbunch Operation
Bane, K; /SLAC
2011-10-17T23:59:59.000Z
Normally the Linac Coherent Light Source (LCLS) operates in single-bunch mode, sending a bunch of up to 250 pC charge at 120 Hz through the linac and the undulator, and the resulting FEL radiation into one of the experimental hutches. With two bunches per rf pulse, each pulse could feed either two experiments or one experiment in a pump-probe type configuration. Two-bunch FEL operation has already been briefly tested at the LCLS, and works reasonably well, although not yet routinely. In this report we study the longitudinal and transverse long-range (bunch-to-bunch) wakefields of the linacs and their effects on LCLS performance in two-bunch mode, which is initially the most likely scenario. The longitudinal wake changes the average energy at the second bunch, and the transverse wake misaligns the second bunch (in transverse phase space) in the presence of e.g. transverse injection jitter or quad misalignments. Finally, we extend the study to consider the LCLS with trains of up to 20 bunches per rf pulse. In the LCLS the bunch is created in an rf gun, and then passes in sequence through Linac 0, Linac 1, Linac X, Bunch Compressor 1 (BC 1), Linac 2, BC 2, Linac 3, and finally the undulator. In the process the bunch energy reaches 13.5 GeV and peak current 3 kA. In Table 1 we present some machine and beam parameters in three of the linacs that we will use in the calculations: initial beam energy E{sub 0}, total accelerator length L, average beta function {beta}{sub y}, bunch peak current I, and rf phase (with respect to crest) {phi}; the final energy of a linac equals E{sub 0} of the following linac, and in Linac 3 is E{sub f} = 13.5 GeV. (The X-band linac, with L = 60 cm, has wake effects that are small compared to the other linacs, and will not be discussed.) In this report we limit our study to trains of equally populated, equally spaced bunches with a total length of less than 100 ns. The charge of each bunch is eN{sub b} = 250 pC.
School of Education Open Learning
Paxton, Anthony T.
learning partnerships with a wide range of community organisations.' The award was presented by the Vice should make a written submission of no more than 300 words detailing how the award would enable them Northern Ireland Tel: (028) 9097 3323/3539 Email: openlearning.education@qub.ac.uk Web: www
Feudal Reinforcement Learning Peter Dayan
Dayan, Peter
Feudal Reinforcement Learning Peter Dayan CNL The Salk Institute PO Box 85800 San Diego CA 92186-grid division of the space in which the agent moves, and section 4 draws some conclusions. 2 FEUDAL CONTROL We sought to build a system that mirrored the hierarchical aspects of a feudal fief- dom, since this is one
Sader, Charles Avery
2015-01-01T23:59:59.000Z
Electronic Structure Theory Calculations and Molecular DynamicsElectronic Structure Theory Calculations and Molecular Dynamicsdynamics simulation requires identification of an electronic structure calculation
Real-time POD-CFD Wind-Load Calculator for PV Systems
Huayamave, Victor [Centecorp; Divo, Eduardo [Centecorp; Ceballos, Andres [Centecorp; Barriento, Carolina [Centecorp; Stephen, Barkaszi [FSEC; Hubert, Seigneur [FSEC
2014-03-21T23:59:59.000Z
The primary objective of this project is to create an accurate web-based real-time wind-load calculator. This is of paramount importance for (1) the rapid and accurate assessments of the uplift and downforce loads on a PV mounting system, (2) identifying viable solutions from available mounting systems, and therefore helping reduce the cost of mounting hardware and installation. Wind loading calculations for structures are currently performed according to the American Society of Civil Engineers/ Structural Engineering Institute Standard ASCE/SEI 7; the values in this standard were calculated from simplified models that do not necessarily take into account relevant characteristics such as those from full 3D effects, end effects, turbulence generation and dissipation, as well as minor effects derived from shear forces on installation brackets and other accessories. This standard does not include provisions that address the special requirements of rooftop PV systems, and attempts to apply this standard may lead to significant design errors as wind loads are incorrectly estimated. Therefore, an accurate calculator would be of paramount importance for the preliminary assessments of the uplift and downforce loads on a PV mounting system, identifying viable solutions from available mounting systems, and therefore helping reduce the cost of the mounting system and installation. The challenge is that although a full-fledged three-dimensional computational fluid dynamics (CFD) analysis would properly and accurately capture the complete physical effects of air flow over PV systems, it would be impractical for this tool, which is intended to be a real-time web-based calculator. CFD routinely requires enormous computation times to arrive at solutions that can be deemed accurate and grid-independent even in powerful and massively parallel computer platforms. This work is expected not only to accelerate solar deployment nationwide, but also help reach the SunShot Initiative goals of reducing the total installed cost of solar energy systems by 75%. The largest percentage of the total installed cost of solar energy system is associated with balance of system cost, with up to 40% going to “soft” costs; which include customer acquisition, financing, contracting, permitting, interconnection, inspection, installation, performance, operations, and maintenance. The calculator that is being developed will provide wind loads in real-time for any solar system designs and suggest the proper installation configuration and hardware; and therefore, it is anticipated to reduce system design, installation and permitting costs.
Universal calculation formula and calibration method in Fourier transform profilometry
Wen Yongfu; Li Sikun; Cheng Haobo; Su Xianyu; Zhang Qican
2010-12-01T23:59:59.000Z
We propose a universal calculation formula of Fourier transform profilometry and give a strict theoretical analysis about the phase-height mapping relation. As the request on the experimental setup of the universal calculation formula is unconfined, the projector and the camera can be located arbitrarily to get better fringe information, which makes the operation flexible. The phase-height calibration method under the universal condition is proposed, which can avoid measuring the system parameters directly. It makes the system easy to manipulate and improves the measurement velocity. A computer simulation and experiment are conducted to verify its validity. The calculation formula and calibration method have been applied to measure an object of 22.00 mm maximal height. The relative error of the measurement result is only 0.59%. The experimental results prove that the three-dimensional shape of tested objects can be reconstructed exactly by using the calculation formula and calibration method, and the system has better universality.
Calculating the hyperWiener index of benzenoid hydrocarbons
Klavzar, Sandi
Calculating the hyperÂWiener index of benzenoid hydrocarbons Petra Zigert1 , Sandi Klavzar1) is not easy, especially in the case of large polycyclic molecules, such as benzenoid hydrocarbons. Some time
Calculating the hyper--Wiener index of benzenoid hydrocarbons
Klavzar, Sandi
Calculating the hyper--Wiener index of benzenoid hydrocarbons Petra Å¸ Zigert 1 , Sandi KlavÅ¸ zar 1. (1) is not easy, especially in the case of large polycyclic molecules, such as benzenoid hydrocarbons
Guidelines for the analysis of free energy calculations
Klimovich, PV; Shirts, MR; Mobley, DL; Mobley, DL
2015-01-01T23:59:59.000Z
Efficient estimation of free energy differ- ences from Montenumerical instabilities in free energy calculations based onD.L. , DiCapua, F.M. : Free energy via molecular simulation:
Is Ring breaking feasible in relative binding free energy calculations?
Liu, S; Wang, L; Mobley, DL
2015-01-01T23:59:59.000Z
Essex, J. W. Rigorous Free Energy Calculations in Structure-of Hydration Free Energies for SAMPL. J. Comput. -Aided Mol.Basic Ingredients of Free Energy Calcula- tions: A Review.
Guidelines for the analysis of free energy calculations
Klimovich, PV; Shirts, MR; Mobley, DL; Mobley, DL
2015-01-01T23:59:59.000Z
Free energy calculations for Lennard-Jones systems and waterfree energy change is found as the negative of ?G waterenergy of hydrophobic hydration: A molecular dynam- ics study of noble gases in water.
Calculating Horsepower Requirements and Sizing Supply Pipelines for Irrigation
Fipps, Guy
1995-09-05T23:59:59.000Z
Pumping costs are often one of the largest single expenses in irrigated agriculture. This publication explains how to lower pumping costs by calculating horsepower requirements and sizing supply pipelines correctly. Examples take the reader through...
Reactor physics calculation of BWR fuel bundles containing gadolinia
Morales, Diego
1977-01-01T23:59:59.000Z
A technique for the calculation of the neutronic behavior of BWR fuel bundles has been developed and applied to a Vermont Yankee fuel bundle. The technique is based on a diffusion theory treatment of the bundle, with ...
Protein Thermostability Calculations Using Alchemical Free Energy Simulations
de Groot, Bert
Protein Thermostability Calculations Using Alchemical Free Energy Simulations Daniel Seeliger by alterations in the free energy of folding. Growing computational power, however, increasingly allows us to use alchem- ical free energy simulations, such as free energy perturbation or thermodynamic integration
Automated higher-order calculations: Status and prospects
Giovanni Ossola
2015-08-08T23:59:59.000Z
In this presentation we review the current status in the automated evaluation of scattering amplitudes, with particular attention to the developments related with NLO calculations, which led to the construction of powerful multi-purpose computational tools. After a general overview, we will devote a short section to describe the GoSam framework for NLO calculations and its application to the production of Higgs boson plus jets. We will then briefly comment on the challenges presented by NNLO calculations, whose structure is considerably more complicated. Finally, we will describe some of the features of the integrand-reduction techniques beyond NLO, an alternative promising approach to multi-loop calculations which is currently under development.
Automated higher-order calculations: Status and prospects
Ossola, Giovanni
2015-01-01T23:59:59.000Z
In this presentation we review the current status in the automated evaluation of scattering amplitudes, with particular attention to the developments related with NLO calculations, which led to the construction of powerful multi-purpose computational tools. After a general overview, we will devote a short section to describe the GoSam framework for NLO calculations and its application to the production of Higgs boson plus jets. We will then briefly comment on the challenges presented by NNLO calculations, whose structure is considerably more complicated. Finally, we will describe some of the features of the integrand-reduction techniques beyond NLO, an alternative promising approach to multi-loop calculations which is currently under development.
Sequential Voronoi diagram calculations using simple chemical reactions
Costello, Ben de Lacy; Adamatzky, Andy
2012-01-01T23:59:59.000Z
In our recent paper [de Lacy Costello et al. 2010] we described the formation of complex tessellations of the plane arising from the various reactions of metal salts with potassium ferricyanide and ferrocyanide loaded gels. In addition to producing colourful tessellations these reactions are naturally computing generalised Voronoi diagrams of the plane. The reactions reported previously were capable of the calculation of three distinct Voronoi diagrams of the plane. As diffusion coupled with a chemical reaction is responsible for the calculation then this is achieved in parallel. Thus an increase in the complexity of the data input does not utilise additional computational resource. Additional benefits of these chemical reactions is that a permanent record of the Voronoi diagram calculation (in the form of precipitate free bisectors) is achieved, so there is no requirement for further processing to extract the calculation results. Previously it was assumed that the permanence of the results was also a potenti...
CRAC calculations for accident sections of environmental statements
Johnson, J.D.; Ritchie, L.T.
1983-03-01T23:59:59.000Z
The CRAC2 computer code was adapted to the calculation requirements of Draft/Final Environmental Impact Statement (DES/FES) casework analysis for the Nuclear Regulatory Commission. CRAC is a revised version of the CRAC (Calculation of Reactor Accident Consequences) computer code developed in support of the Reactor Safety Study, WASH-1400. A graphical output package was developed for displaying CRAC2 computed results. All phases of the casework analysis calculations from initial data formatting to plotting of calculated results are executed through the use of procedure files on the Idaho National Engineering Laboratory (INEL) computing system at Idaho Falls, Idaho. The INEL computing system operates under the Control Data Corporation (CDC) NOS/BE Operating System (Level 518) and Intercom Version 5.
Bassichis, William
2013-01-29T23:59:59.000Z
extension using the model potential energy and equating the energy with the body at rest at y 0 with the energy at Yrriax 01W has Cl 2ky+ Vrnax + (2 ? I1IIU!Jrnar (6) with the solution rn1q?3 / m1q? 2 /3S / (35 - Yrna k2V k2 (i) Thus the effect... to the bottorri involves such a force. W. Bassichis, ?Don?t Panic? (OR Publishing, New York 2005) 6 Figure Captions Fig.1. For the ideaL massless spring Hooke?s Law holds and IF! = rng = ky,,,. with m the mass of the object hung from the spring. Because...
Strategy Guideline: Accurate Heating and Cooling Load Calculations
Burdick, A.
2011-06-01T23:59:59.000Z
This guide presents the key criteria required to create accurate heating and cooling load calculations and offers examples of the implications when inaccurate adjustments are applied to the HVAC design process. The guide shows, through realistic examples, how various defaults and arbitrary safety factors can lead to significant increases in the load estimate. Emphasis is placed on the risks incurred from inaccurate adjustments or ignoring critical inputs of the load calculation.
Improved load models for multi-area reliability calculations
Pathak, Sanjesh
1992-01-01T23:59:59.000Z
IMPROVED LOAD MODELS FOR MULTI-AREA RELIABILITY CALCULATIONS A Thesis by SANJESH PATHAK Submitted to the Office of Graduate Studies of Texas ARM University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE May... 1992 Major Subject: Electrical Engineering IMPROVED LOAD MODELS FOR MULTI-AREA RELIABILITY CALCULATIONS A Thesis by SAN JESH PATHAK Approved as to style and content by: Chanan Singh (Chair of Committee) Prasad Enjeti (Member) Ces . Mal, e...
Ab initio calculations of nuclear widths via an integral relation
Kenneth M. Nollett
2012-05-31T23:59:59.000Z
I describe the computation of energy widths of nuclear states using an integral over the interaction region of ab initio variational Monte Carlo wave functions, and I present calculated widths for many states. I begin by presenting relations that connect certain short-range integrals to widths. I then present predicted widths for 5 integral relation, I conclude that overlap calculations can diagnose cases in which computed widths should not be trusted.
Scoping calculations of power sources for nuclear electric propulsion
Difilippo, F.C. [Oak Ridge National Lab., TN (United States)] [Oak Ridge National Lab., TN (United States)
1994-05-01T23:59:59.000Z
This technical memorandum describes models and calculational procedures to fully characterize the nuclear island of power sources for nuclear electric propulsion. Two computer codes were written: one for the gas-cooled NERVA derivative reactor and the other for liquid metal-cooled fuel pin reactors. These codes are going to be interfaced by NASA with the balance of plant in order to making scoping calculations for mission analysis.
Kim, Hye Jeong
2009-05-15T23:59:59.000Z
In the study, young adolescents’ hypothesis development in a computer-supported and problem-based learning environment was examined in terms of two empirical studies. The first study examined the effect of metacognitive scaffolds to strengthening...
Schubart, Christoph
on learning and professional development", Room: 140). Identifying types of informal learners: A latent classHans Gruber (Professional Learning), Regina H. Mulder (Vocational Education and Training, Learning in Organisations), Klaus-Peter Wild (Higher Education, Web-Based Learning), Silke Schworm (Learning with Visual
Iterative acceleration methods for Monte Carlo and deterministic criticality calculations
Urbatsch, T.J.
1995-11-01T23:59:59.000Z
If you have ever given up on a nuclear criticality calculation and terminated it because it took so long to converge, you might find this thesis of interest. The author develops three methods for improving the fission source convergence in nuclear criticality calculations for physical systems with high dominance ratios for which convergence is slow. The Fission Matrix Acceleration Method and the Fission Diffusion Synthetic Acceleration (FDSA) Method are acceleration methods that speed fission source convergence for both Monte Carlo and deterministic methods. The third method is a hybrid Monte Carlo method that also converges for difficult problems where the unaccelerated Monte Carlo method fails. The author tested the feasibility of all three methods in a test bed consisting of idealized problems. He has successfully accelerated fission source convergence in both deterministic and Monte Carlo criticality calculations. By filtering statistical noise, he has incorporated deterministic attributes into the Monte Carlo calculations in order to speed their source convergence. He has used both the fission matrix and a diffusion approximation to perform unbiased accelerations. The Fission Matrix Acceleration method has been implemented in the production code MCNP and successfully applied to a real problem. When the unaccelerated calculations are unable to converge to the correct solution, they cannot be accelerated in an unbiased fashion. A Hybrid Monte Carlo method weds Monte Carlo and a modified diffusion calculation to overcome these deficiencies. The Hybrid method additionally possesses reduced statistical errors.
Learning in Complex Systems Spring Semester, 2011 Lecture Notes Prof. Nahum Shimkin
Shimkin, Nahum
routing robot juggling Types of learning: Supervised Unsupervised Reinforcement Learning 1 #12Learning in Complex Systems Spring Semester, 2011 Lecture Notes Prof. Nahum Shimkin 1 Introduction problems. Reinforcement Learning what is it? Learning from experience. Learning to act optimally
Formal Management Review of the Safety Basis Calculations Noncompliance
Altenbach, T J
2008-06-24T23:59:59.000Z
In Reference 1, LLNL identified a failure to adequately implement an institutional commitment concerning administrative requirements governing the documentation of Safety Basis calculations supporting the Documented Safety Analysis (DSA) process for LLNL Hazard Category 2 and Category 3 nuclear facilities. The AB Section has discovered that the administrative requirements of AB procedure AB-006, 'Safety Basis Calculation Procedure for Category 2 and 3 Nuclear Facilities', have not been uniformly or consistently applied in the preparation of Safety Basis calculations for LLNL Hazard Category 2 and 3 Nuclear Facilities. The SEP Associated Director has directed the AB Section to initiate a formal management review of the issue that includes, but is not necessarily limited to the following topics: (1) the basis establishing Ab-006 as a required internal procedure for Safety Basis calculations; (2) how requirements for Safety Basis calculations flow down in the institutional DSA process; (3) the extent to which affected Laboratory organizations have explicitly complied with the requirements of Procedure AB-006; (4) what alternative approaches LLNL organizations has used for Safety Basis calculations and how these alternate approaches compare with Procedure AB-006 requirements; and (5) how to reconcile Safety Basis calculations that were performed before Procedure AB-006 came into existence (i.e., August 2001). The management review2 also includes an extent-of-condition evaluation to determine how widespread the discovered issue is throughout Laboratory organizations responsible for operating nuclear facilities, and to determine if implementation of AB procedures other than AB-006 has been similarly affected. In Reference 2, Corrective Action 1 was established whereby the SEP Directorate will develop a plan for performing a formal management review of the discovered condition, including an extent-of condition evaluation. In Reference 3, a plan was provided to prepare a formal management review, satisfying Corrective Action 1. An AB-006 Working Group was formed,led by the AB Section, with representatives from the Nuclear Materials Technology Program (NMTP), the Radioactive and Hazardous Waste Management (RHWM) Division, and the Packaging and Transportation Safety (PATS) Program. The key action of this management review was for Working Group members to conduct an assessment of all safety basis calculations referenced in their respective DSAs. Those assessments were tasked to provide the following information: (1) list which safety basis calculations correctly follow AB-006 and therefore require no additional documentation; (2) identify and list which safety basis calculations do not strictly follow AB-006, these include NMTP Engineering Notes, Engineering Safety Notes, and calculations by organizations external to the nuclear facilities (such as Plant Engineering), subcontractor calculations, and other internally generated calculations. Each of these will be reviewed and listed on a memorandum with the facility manager's (or designee's) signature accepting that calculation for use in the DSA. If any of these calculations are lacking the signature of a technical reviewer, they must also be reviewed for technical content and that review documented per AB-006.
SCWR Once-Through Calculations for Transmutation and Cross Sections
ganda, francesco (090771)
2012-07-01T23:59:59.000Z
It is the purpose of this report to document the calculation of (1) the isotopic evolution and of (2) the 1-group cross sections as a function of burnup of the reference Super Critical Water Reactor (SCWR), in a format suitable for the Fuel Cycle Option Campaign Transmutation Data Library. The reference SCWR design was chosen to be that described in [McDonald, 2005]. Super Critical Water Reactors (SCWR) are intended to operate with super-critical water (i.e. H2O at a pressure above 22 MPa and a temperature above 373oC) as a cooling – and possibly also moderating – fluid. The main mission of the SCWR is to generate lower cost electricity, as compared to current standard Light Water Reactors (LWR). Because of the high operating pressure and temperature, SCWR feature a substantially higher thermal conversion efficiency than standard LWR – i.e. about 45% versus 33%, mostly due to an increase in the exit water temperature from ~300oC to ~500oC – potentially resulting in a lower cost of generated electricity. The coolant remains single phase throughout the reactor and the energy conversion system, thus eliminating the need for pressurizers, steam generators, steam separators and dryers, further potentially reducing the reactor construction capital cost. The SCWR concept presented here is based on existing LWR technology and on a large number of existing fossil-fired supercritical boilers. However, it was concluded in [McDonald, 2005], that: “Based on the results of this study, it appears that the reference SCWR design is not feasible.” This conclusion appears based on the strong sensitivity of the design to small deviations in nominal conditions leading to small effects having a potentially large impact on the peak cladding temperature of some fuel rods. “This was considered a major feasibility issue for the SCWR” [McDonald, 2005]. After a description of the reference SCWR design, the Keno V 3-D single assembly model used for this analysis, as well as the calculated results, are presented. Additionally, the follwing information, presented in the appendixes, is intended to provide enough guidance that a researcher repeating the same task in the future should be able to obtain a vector of nuclei and cross sections ready for insertion into the transmutation library without any need for further instructions: (1) Complete TRITON/KENO-V input used for the analysis; (2) Inputs and detailed description of the usage of the OPUS utility, used to postproces and to extract the nuclei concentrations for the transmutation library; (3) Inputs and detailed description of the usage of the XSECLIST utility, used to postproces and to extract the 1-group cross sections for the transmutation library; (4) Details of an ad-hoc utility program developed to sort the nuclei and cross sections for the transmutation library.