Sample records for mam include aggregate

  1. #include #include

    E-Print Network [OSTI]

    Campbell, Andrew T.

    process #12;#include #include pid_t pid = fork(); if (pid () failed */ } else if (pid == 0) { /* parent process */ } else { /* child process */ } #12;thread #12

  2. #include #include

    E-Print Network [OSTI]

    Poinsot, Laurent

    #include #include //Rappels : "getpid()" permet d'obtenir son propre pid // "getppid()" renvoie le pid du père d'un processus int main (void) { pid_t pid_fils; pid_fils = fork(); if(pid_fils==-1) { printf("Erreur de création du processus fils\

  3. MAM-06, 28 MAY -1 JUNE, WASEDA, TOKYO, JAPAN MICRO-/NANOFLUIDIC COMPUTING AND ITS

    E-Print Network [OSTI]

    Munakata, Toshinori

    MAM-06, 28 MAY - 1 JUNE, WASEDA, TOKYO, JAPAN Pa-098 MICRO-/NANOFLUIDIC COMPUTING AND ITS Department of Chemistry, Cleveland State University, Cleveland, OH 44115, USA. Micro-/nanofluidics control liquids on a scale in the order of microns and nanometers [1]. Because of its very small scale, micro-/nanofluidics

  4. Improving best-phase image quality in cardiac CT by motion correction with MAM optimization

    SciTech Connect (OSTI)

    Rohkohl, Christopher; Bruder, Herbert; Stierstorfer, Karl [Siemens AG, Healthcare Sector, Siemensstrasse 1, 91301 Forchheim (Germany); Flohr, Thomas [Siemens AG, Healthcare Sector, Siemensstrasse 1, 91301 Forchheim (Germany); Institute of Diagnostic Radiology, Eberhard Karls University, Hoppe-Seyler-Str. 3, 72076 Tuebingen (Germany)

    2013-03-15T23:59:59.000Z

    Purpose: Research in image reconstruction for cardiac CT aims at using motion correction algorithms to improve the image quality of the coronary arteries. The key to those algorithms is motion estimation, which is currently based on 3-D/3-D registration to align the structures of interest in images acquired in multiple heart phases. The need for an extended scan data range covering several heart phases is critical in terms of radiation dose to the patient and limits the clinical potential of the method. Furthermore, literature reports only slight quality improvements of the motion corrected images when compared to the most quiet phase (best-phase) that was actually used for motion estimation. In this paper a motion estimation algorithm is proposed which does not require an extended scan range but works with a short scan data interval, and which markedly improves the best-phase image quality. Methods: Motion estimation is based on the definition of motion artifact metrics (MAM) to quantify motion artifacts in a 3-D reconstructed image volume. The authors use two different MAMs, entropy, and positivity. By adjusting the motion field parameters, the MAM of the resulting motion-compensated reconstruction is optimized using a gradient descent procedure. In this way motion artifacts are minimized. For a fast and practical implementation, only analytical methods are used for motion estimation and compensation. Both the MAM-optimization and a 3-D/3-D registration-based motion estimation algorithm were investigated by means of a computer-simulated vessel with a cardiac motion profile. Image quality was evaluated using normalized cross-correlation (NCC) with the ground truth template and root-mean-square deviation (RMSD). Four coronary CT angiography patient cases were reconstructed to evaluate the clinical performance of the proposed method. Results: For the MAM-approach, the best-phase image quality could be improved for all investigated heart phases, with a maximum improvement of the NCC value by 100% and of the RMSD value by 81%. The corresponding maximum improvements for the registration-based approach were 20% and 40%. In phases with very rapid motion the registration-based algorithm obtained better image quality, while the image quality of the MAM algorithm was superior in phases with less motion. The image quality improvement of the MAM optimization was visually confirmed for the different clinical cases. Conclusions: The proposed method allows a software-based best-phase image quality improvement in coronary CT angiography. A short scan data interval at the target heart phase is sufficient, no additional scan data in other cardiac phases are required. The algorithm is therefore directly applicable to any standard cardiac CT acquisition protocol.

  5. Subcellular localization of the magnetosome protein MamC in the marine magnetotactic bacterium Magnetococcus marinus strain MC-1 using immunoelectron microscopy

    SciTech Connect (OSTI)

    Valverde-Tercedor, C [Universidad de Granada; Abada-Molina, F [Universidad de Granada; Martinez-Bueno, M [Universidad de Granada; Pineda-Molina, Estela [Laboratorio de Estudios Cristalograficos; Chen, Lijun [Ohio State University; Oestreicher, Zachery [Ohio State University; Lower, Brian H [Ohio State University; Lower, Steven K [Ohio State University; Bazylinski, Dennis A [Ames Laboratory; Jimenez-Lopez, C [Universidad de Granada

    2014-04-24T23:59:59.000Z

    Magnetotactic bacteria are a diverse group of prokaryotes that biomineralize intracellular magnetosomes, composed of magnetic (Fe3O4) crystals each enveloped by a lipid bilayer membrane that contains proteins not found in other parts of the cell. Although partial roles of some of these magnetosome proteins have been determined, the roles of most have not been completely elucidated, particularly in how they regulate the biomineralization process. While studies on the localization of these proteins have been focused solely on Magnetospirillum species, the goal of the present study was to determine, for the first time, the localization of the most abundant putative magnetosome membrane protein, MamC, in Magnetococcus marinus strain MC-1. MamC was expressed in Escherichia coli and purified. Monoclonal antibodies were produced against MamC and immunogold labeling TEM was used to localize MamC in thin sections of cells of M. marinus. Results show that MamC is located only in the magnetosome membrane of Mc. marinus. Based on our findings and the abundance of this protein, it seems likely that it is important in magnetosome biomineralization and might be used in controlling the characteristics of synthetic nanomagnetite.

  6. Managing Attack Graph Complexity Through Visual Hierarchical Aggregation

    E-Print Network [OSTI]

    Noel, Steven

    Managing Attack Graph Complexity Through Visual Hierarchical Aggregation Steven Noel Center a framework for managing network attack graph complexity through interactive visualization, which includes hierarchical aggregation of graph elements. Aggregation collapses non-overlapping subgraphs of the attack graph

  7. Public Sector Energy Efficiency Aggregation Program

    Broader source: Energy.gov [DOE]

    The Illinois Department of Commerce and Economic Opportunity (DCEO) administers the Illinois Energy Now programs, including the Public Sector Energy Efficiency Aggregation Program. The program will...

  8. PORTAL Aggregation Analysis and Documentation

    E-Print Network [OSTI]

    Bertini, Robert L.

    PORTAL Aggregation Analysis and Documentation Kristin A. Tufte Portland State University Introduction This document describes the aggregation procedures for PORTAL . Analysis of different aggregation system. Details on the status values and their descriptions can be found in the SWARM documentation

  9. MA-m & Downstream Coil I.R. with B(z) = 1.5 T at 4.2 m, 4.5 m & 5 m Bob Weggel Magnet Optimization Research Engineering (M.O.R.E.), LLC Nov. 22, 2013

    E-Print Network [OSTI]

    McDonald, Kirk

    MA-m & Downstream Coil I.R. with B(z) = 1.5 T at 4.2 m, 4.5 m & 5 m Bob Weggel Magnet Optimization, the optimization program adjusts the inner radius of the downstream coil, in order that the ramp bottom out. It uses (182+400) = 582 MA-m of conductor; the inner radius of its downstream coil is 94 cm. To increase L

  10. Characterization and modeling of thermal diffusion and aggregation in nanofluids.

    SciTech Connect (OSTI)

    Gharagozloo, Patricia E.; Goodson, Kenneth E. (Stanford University, Stanford, CA)

    2010-05-01T23:59:59.000Z

    Fluids with higher thermal conductivities are sought for fluidic cooling systems in applications including microprocessors and high-power lasers. By adding high thermal conductivity nanoscale metal and metal oxide particles to a fluid the thermal conductivity of the fluid is enhanced. While particle aggregates play a central role in recent models for the thermal conductivity of nanofluids, the effect of particle diffusion in a temperature field on the aggregation and transport has yet to be studied in depth. The present work separates the effects of particle aggregation and diffusion using parallel plate experiments, infrared microscopy, light scattering, Monte Carlo simulations, and rate equations for particle and heat transport in a well dispersed nanofluid. Experimental data show non-uniform temporal increases in thermal conductivity above effective medium theory and can be well described through simulation of the combination of particle aggregation and diffusion. The simulation shows large concentration distributions due to thermal diffusion causing variations in aggregation, thermal conductivity and viscosity. Static light scattering shows aggregates form more quickly at higher concentrations and temperatures, which explains the increased enhancement with temperature reported by other research groups. The permanent aggregates in the nanofluid are found to have a fractal dimension of 2.4 and the aggregate formations that grow over time are found to have a fractal dimension of 1.8, which is consistent with diffusion limited aggregation. Calculations show as aggregates grow the viscosity increases at a faster rate than thermal conductivity making the highly aggregated nanofluids unfavorable, especially at the low fractal dimension of 1.8. An optimum nanoparticle diameter for these particular fluid properties is calculated to be 130 nm to optimize the fluid stability by reducing settling, thermal diffusion and aggregation.

  11. Early age delamination in concrete pavements made with gravel aggregates

    E-Print Network [OSTI]

    Liu, Juanyu

    2009-06-02T23:59:59.000Z

    , and application of ultra-fine fly ash among others. A fractional factorial design (Taguchi method) based on ?orthogonal array? (Taguchi et al. 1993) was used to evaluate the effects of various factors on the bonding strength. Test runs were made according... of the aggregate can be represented by an overall rating of the contribution of aggregate to the bonding performance. Non-aggregate factors include water/cementitious ratio (w/cm), cement factor, ultra-fly ash content, and curing quality. The overall effects...

  12. Direct Observation of Aggregative Nanoparticle Growth: Kinetic...

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

    Aggregative Nanoparticle Growth: Kinetic Modeling of the Size Distribution and Growth Rate. Direct Observation of Aggregative Nanoparticle Growth: Kinetic Modeling of the Size...

  13. aggregation aggregate strength: Topics by E-print Network

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

    of these quantum diffusion-limited aggregates vary between 1.43 and 2, depending on the size of the initial wave packet. David B. Johnson; Gonzalo Ordez 2011-11-02 60...

  14. Turbulent breakage of ductile aggregates

    E-Print Network [OSTI]

    Marchioli, Cristian

    2015-01-01T23:59:59.000Z

    In this paper we study breakage rate statistics of small colloidal aggregates in non-homogeneous anisotropic turbulence. We use pseudo-spectral direct numerical simulation of turbulent channel flow and Lagrangian tracking to follow the motion of the aggregates, modelled as sub-Kolmogorov massless particles. We focus specifically on the effects produced by ductile rupture: This rupture is initially activated when fluctuating hydrodynamic stresses exceed a critical value, $\\sigma>\\sigma_{cr}$, and is brought to completion when the energy absorbed by the aggregate meets the critical breakage value. We show that ductile rupture breakage rates are significantly reduced with respect to the case of instantaneous brittle rupture (i.e. breakage occurs as soon as $\\sigma>\\sigma_{cr}$). These discrepancies are due to the different energy values at play as well as to the statistical features of energy distribution in the anisotropic turbulence case examined.

  15. anaerobic aggregates determined: Topics by E-print Network

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

    forest road aggregate 8 Determination of branch fraction and minimum dimension of mass-fractal aggregates G. Beaucage* Materials Science Websites Summary: . Branched aggregates...

  16. Data aggregation for capacity management

    E-Print Network [OSTI]

    Lee, Yong Woo

    2004-09-30T23:59:59.000Z

    This thesis presents a methodology for data aggregation for capacity management. It is assumed that there are a very large number of products manufactured in a company and that every product is stored in the database with its standard unit per hour...

  17. Evaluation of superpave fine aggregate specification

    E-Print Network [OSTI]

    Chowdhury, Md. Tahjib-Ul-Arif

    1999-01-01T23:59:59.000Z

    aggregate resistance (CAR) test, image analysis Hough transform, and visual inspection. The results from those tests were compared with the available performance history. The FAA test method does not consistently identify angular, cubical aggregates as high...

  18. Essays on aggregate and individual consumption fluctuations

    E-Print Network [OSTI]

    Hwang, Youngjin

    2006-01-01T23:59:59.000Z

    This thesis consists of three essays on aggregate and individual consumption fluctuations. Chapter 1 develops a quantitative model to explore aggregate and individual consumption dynamics when the income process exhibits ...

  19. ALTERNATE ACCEPTANCE OF WULFENSTEIN PIT AGGREGATE

    SciTech Connect (OSTI)

    J. W. Keifer

    1999-06-24T23:59:59.000Z

    The purpose of this calculation is to evaluate Wulfenstein fine aggregate for acceptability under ASTM C 33 standard specification.

  20. Interpreting the Aggregation Kinetics of Amyloid Peptides

    E-Print Network [OSTI]

    Caflisch, Amedeo

    Amyloid fibrils are insoluble mainly -sheet aggregates of proteins or peptides. The multi-step process) and amyloid-protected states, is used to investigate the kinetics of aggregation and the pathways of fibril state. The minimal-size aggregate able to form a fibril is generated by collisions of oligomers

  1. Secure and Energy-Efficient Data Aggregation with Malicious Aggregator Identification in Wireless Sensor

    E-Print Network [OSTI]

    Stojmenovic, Ivan

    Secure and Energy-Efficient Data Aggregation with Malicious Aggregator Identification in Wireless. In this paper, we propose a secure and energy-efficient data aggregation scheme that can detect the malicious13, 2011. c Springer-Verlag Berlin Heidelberg 2011 #12;Secure and Energy-Efficient Data Aggregation 3

  2. Internship Contract (Includes Practicum)

    E-Print Network [OSTI]

    Thaxton, Christopher S.

    Internship Contract (Includes Practicum) Student's name-mail: _________________________________________ Internship Agency Contact Agency Name: ____________________________________ Address-mail: __________________________________________ Location of Internship, if different from Agency: ________________________________________________ Copies

  3. Pump apparatus including deconsolidator

    DOE Patents [OSTI]

    Sonwane, Chandrashekhar; Saunders, Timothy; Fitzsimmons, Mark Andrew

    2014-10-07T23:59:59.000Z

    A pump apparatus includes a particulate pump that defines a passage that extends from an inlet to an outlet. A duct is in flow communication with the outlet. The duct includes a deconsolidator configured to fragment particle agglomerates received from the passage.

  4. Controlling the architectures and optical properties of conjugated polymer aggregates and films

    E-Print Network [OSTI]

    Satrijo, Andrew

    2007-01-01T23:59:59.000Z

    The semiconducting properties of conjugated polymers are finding use in various optoelectronic applications, including chemical sensors and light-emitting diodes. In this thesis, we investigate aggregation in conjugated ...

  5. Living Expenses (includes approximately

    E-Print Network [OSTI]

    Maroncelli, Mark

    & engineering programs All other programs Graduate: MBA/INFSY at Erie & Harrisburg (12 credits) Business Guarantee 3 (Does not include Dependents Costs4 ) Altoona, Berks, Erie, and Harrisburg 12-Month Estimated

  6. Markov Modeling with Soft Aggregation for Safety and Decision Analysis

    SciTech Connect (OSTI)

    COOPER,J. ARLIN

    1999-09-01T23:59:59.000Z

    The methodology in this report improves on some of the limitations of many conventional safety assessment and decision analysis methods. A top-down mathematical approach is developed for decomposing systems and for expressing imprecise individual metrics as possibilistic or fuzzy numbers. A ''Markov-like'' model is developed that facilitates combining (aggregating) inputs into overall metrics and decision aids, also portraying the inherent uncertainty. A major goal of Markov modeling is to help convey the top-down system perspective. One of the constituent methodologies allows metrics to be weighted according to significance of the attribute and aggregated nonlinearly as to contribution. This aggregation is performed using exponential combination of the metrics, since the accumulating effect of such factors responds less and less to additional factors. This is termed ''soft'' mathematical aggregation. Dependence among the contributing factors is accounted for by incorporating subjective metrics on ''overlap'' of the factors as well as by correspondingly reducing the overall contribution of these combinations to the overall aggregation. Decisions corresponding to the meaningfulness of the results are facilitated in several ways. First, the results are compared to a soft threshold provided by a sigmoid function. Second, information is provided on input ''Importance'' and ''Sensitivity,'' in order to know where to place emphasis on considering new controls that may be necessary. Third, trends in inputs and outputs are tracked in order to obtain significant information% including cyclic information for the decision process. A practical example from the air transportation industry is used to demonstrate application of the methodology. Illustrations are given for developing a structure (along with recommended inputs and weights) for air transportation oversight at three different levels, for developing and using cycle information, for developing Importance and Sensitivity measures for soil aggregation, for developing dependence methodology, for constructing early alert logic, for tracking trends, for relating the Markov model to other (e.g., Reason) models, for developing and demonstrating rudimentary laptop software, and for developing an input/output display methodology.

  7. Flow Partitioning in Fully Saturated Soil Aggregates

    SciTech Connect (OSTI)

    Yang, Xiaofan; Richmond, Marshall C.; Scheibe, Timothy D.; Perkins, William A.; Resat, Haluk

    2014-03-30T23:59:59.000Z

    Microbes play an important role in facilitating organic matter decomposition in soils, which is a major component of the global carbon cycle. Microbial dynamics are intimately coupled to environmental transport processes, which control access to labile organic matter and other nutrients that are needed for the growth and maintenance of microorganisms. Transport of soluble nutrients in the soil system is arguably most strongly impacted by preferential flow pathways in the soil. Since the physical structure of soils can be characterized as being formed from constituent micro aggregates which contain internal porosity, one pressing question is the partitioning of the flow among the inter-aggregate and intra-aggregate pores and how this may impact overall solute transport within heterogeneous soil structures. The answer to this question is particularly important in evaluating assumptions to be used in developing upscaled simulations based on highly-resolved mechanistic models. We constructed a number of diverse multi-aggregate structures with different packing ratios by stacking micro-aggregates containing internal pores and varying the size and shape of inter-aggregate pore spacing between them. We then performed pore-scale flow simulations using computational fluid dynamics methods to determine the flow patterns in these aggregate-of-aggregates structures and computed the partitioning of the flow through intra- and inter-aggregate pores as a function of the spacing between the aggregates. The results of these numerical experiments demonstrate that soluble nutrients are largely transported via flows through inter-aggregate pores. Although this result is consistent with intuition, we have also been able to quantify the relative flow capacity of the two domains under various conditions. For example, in our simulations, the flow capacity through the aggregates (intra-aggregate flow) was less than 2% of the total flow when the spacing between the aggregates was larger than 18 micron. Inter-aggregate pores continued to be the dominant flow pathways even at much smaller spacing; intra-aggregate flow was less than 10% of the total flow when the inter- and intra-aggregate pore sizes were comparable. Such studies are making it possible to identify which model upscaling assumptions are realistic and what computational methods are required for detailed numerical investigation of microbial carbon cycling dynamics in soil systems.

  8. Fracture model for cemented aggregates

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

    Zubelewicz, Aleksander; Thompson, Darla G.; Ostoja-Starzewski, Martin; Ionita, Axinte; Shunk, Devin; Lewis, Matthew W.; Lawson, Joe C.; Kale, Sohan; Koric, Seid

    2013-01-01T23:59:59.000Z

    A mechanisms-based fracture model applicable to a broad class of cemented aggregates and, among them, plastic-bonded explosive (PBX) composites, is presented. The model is calibrated for PBX 9502 using the available experimental data under uniaxial compression and tension gathered at various strain rates and temperatures. We show that the model correctly captures inelastic stress-strain responses prior to the load peak and it predicts the post-critical macro-fracture processes, which result from the growth and coalescence of micro-cracks. In our approach, the fracture zone is embedded into elastic matrix and effectively weakens the material's strength along the plane of the dominant fracture.

  9. Extracellular Proteins Promote Zinc Sulfide Aggregation

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

    and metals, particularly how organics affect mobility, and its potential for bioremediation. It is known that some organics promote aggregation. Amine-bearing molecules, for...

  10. PROCEDURES FOR ALLOCATION AND AGGREGATION OF RESOURCES

    E-Print Network [OSTI]

    Laughlin, Robert B.

    Chapter AA PROCEDURES FOR ALLOCATION AND AGGREGATION OF RESOURCES By Ronald R. Charpentier, T.......................................................................................................AA-7 Appendix 1 Aggregation of Undiscovered Oil, Gas, and NGL Volumes Of Regions to World Total Monte RH. The separate reporting of onshore versus offshore undiscovered resources is important to economic

  11. Modeling Energy Demand Aggregators for Residential Consumers

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Modeling Energy Demand Aggregators for Residential Consumers G. Di Bella, L. Giarr`e, M. Ippolito, A. Jean-Marie, G. Neglia and I. Tinnirello § January 2, 2014 Abstract Energy demand aggregators are new actors in the energy scenario: they gather a group of energy consumers and implement a demand

  12. Aggregate Issuance and Savings Waves Andrea Eisfeldt

    E-Print Network [OSTI]

    Haller, Gary L.

    is as follows: Firms which raise costly external finance can invest the issuance proceeds in productive capital. Our study is aimed at providing an estimate of a "revealed preference" measure of the aggregate cost their sources and uses of funds in order to make inferences about the aggregate cost of external finance

  13. GEOMETRIC CROSS SECTIONS OF DUST AGGREGATES AND A COMPRESSION MODEL FOR AGGREGATE COLLISIONS

    SciTech Connect (OSTI)

    Suyama, Toru [Nagano City Museum, Hachimanpara Historical Park Ojimada-machi, Nagano 381-2212 (Japan); Wada, Koji [Planetary Exploration Research Center, Chiba Institute of Technology, Tsudanuma 2-17-1, Narashino, Chiba 275-0016 (Japan); Tanaka, Hidekazu [Institute of Low Temperature Science, Hokkaido University, N19-W8, Sapporo 060-0819 (Japan); Okuzumi, Satoshi, E-mail: museum@city.nagano.lg.jp [Department of Physics, Nagoya University, Nagoya, Aichi 464-8602 (Japan)

    2012-07-10T23:59:59.000Z

    Geometric cross sections of dust aggregates determine their coupling with disk gas, which governs their motions in protoplanetary disks. Collisional outcomes also depend on geometric cross sections of initial aggregates. In a previous paper, we performed three-dimensional N-body simulations of sequential collisions of aggregates composed of a number of sub-micron-sized icy particles and examined radii of gyration (and bulk densities) of the obtained aggregates. We showed that collisional compression of aggregates is not efficient and that aggregates remain fluffy. In the present study, we examine geometric cross sections of the aggregates. Their cross sections decrease due to compression as well as to their gyration radii. It is found that a relation between the cross section and the gyration radius proposed by Okuzumi et al. is valid for the compressed aggregates. We also refine the compression model proposed in our previous paper. The refined model enables us to calculate the evolution of both gyration radii and cross sections of growing aggregates and reproduces well our numerical results of sequential aggregate collisions. The refined model can describe non-equal-mass collisions as well as equal-mass cases. Although we do not take into account oblique collisions in the present study, oblique collisions would further hinder compression of aggregates.

  14. aggregate form size: Topics by E-print Network

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

    of exceedence of the aggregate-size provide a meaningful estimate of the same fractal dimension. Systems aggregate because of the influence exerted by a physical or...

  15. aggregate processing technology: Topics by E-print Network

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

    London 10 Particle-based modelling of aggregation and fragmentation processes: Fractal-like aggregates Nonlinear Sciences (arXiv) Summary: The incorporation of particle...

  16. aggregate tests: Topics by E-print Network

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

    parameter to aggregation. By using the local Whittle estimator, the statistic takes Weber, Stefan 3 A. SCOPE METHOD OF TEST FOR PROPORTIONS OF COARSE AGGREGATE IN FRESH...

  17. aggregations modeling scientific: Topics by E-print Network

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

    A N; Brilliantov, N V 2011-01-01 18 Aggregation of Composite Solutions: strategies, models, examples CERN Preprints Summary: The paper addresses aggregation issues for...

  18. Data Aggregation Strategies for Evaluation and Reporting | Department...

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

    Aggregation Strategies for Evaluation and Reporting Data Aggregation Strategies for Evaluation and Reporting BetterBuildings: Data and Evaluation Peer Exchange Call: Data...

  19. Highly Stable Trypsin-Aggregate Coatings on Polymer Nanofibers...

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

    Stable Trypsin-Aggregate Coatings on Polymer Nanofibers for Repeated Protein Digestion. Highly Stable Trypsin-Aggregate Coatings on Polymer Nanofibers for Repeated Protein...

  20. Costs of aggregate hydrocarbon reserve additions

    E-Print Network [OSTI]

    Adelman, Morris Albert

    2002-01-01T23:59:59.000Z

    In what follows, we highlight problems created by aggregation using fixed conversion coefficients (Section 1). We then offer an economic index approach as an alternative, one that recognizes changing relative values of oil ...

  1. aggregates: Topics by E-print Network

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

    of these quantum diffusion-limited aggregates vary between 1.43 and 2, depending on the size of the initial wave packet. David B. Johnson; Gonzalo Ordez 2011-11-02 48...

  2. aggregation: Topics by E-print Network

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

    of these quantum diffusion-limited aggregates vary between 1.43 and 2, depending on the size of the initial wave packet. David B. Johnson; Gonzalo Ordez 2011-11-02 48...

  3. Diffusion-Limited Aggregation on Curved Surfaces

    E-Print Network [OSTI]

    Choi, J.

    We develop a general theory of transport-limited aggregation phenomena occurring on curved surfaces, based on stochastic iterated conformal maps and conformal projections to the complex plane. To illustrate the theory, we ...

  4. Laboratory-scale sodium-carbonate aggregate concrete interactions. [LMFBR

    SciTech Connect (OSTI)

    Westrich, H.R.; Stockman, H.W.; Suo-Anttila, A.

    1983-09-01T23:59:59.000Z

    A series of laboratory-scale experiments was made at 600/sup 0/C to identify the important heat-producing chemical reactions between sodium and carbonate aggregate concretes. Reactions between sodium and carbonate aggregate were found to be responsible for the bulk of heat production in sodium-concrete tests. Exothermic reactions were initiated at 580+-30/sup 0/C for limestone and dolostone aggregates as well as for hydrated limestone concrete, and at 540+-10/sup 0/C for dehydrated limestone concrete, but were ill-defined for dolostone concrete. Major reaction products included CaO, MgO, Na/sub 2/CO/sub 3/, Na/sub 2/O, NaOH, and elemental carbon. Sodium hydroxide, which forms when water is released from cement phases, causes slow erosion of the concrete with little heat production. The time-temperature profiles of these experiments have been modeled with a simplified version of the SLAM computer code, which has allowed derivation of chemical reaction rate coefficients.

  5. NADIM-Travel: A Multiagent Platform for Travel Services Aggregation

    E-Print Network [OSTI]

    Kropf, Peter

    services aggregators are increasingly in demand. A travel services aggregation platform should be able-coordinator agent manages users' requests as well as the response aggregation process. Service agents, on their partNADIM-Travel: A Multiagent Platform for Travel Services Aggregation Houssein Ben-Ameur a , Franois

  6. SUBGRADE AGGREGATE, SPECIAL (Tollway) Effective: October 29, 2012

    E-Print Network [OSTI]

    of porous granular embankment material of the specified thickness for the SUBGRADE AGGREGATE, SPECIAL item AGGREGATE, SPECIAL shall consist of the following: The coarse aggregate for porous granular embankment shall) particles, or crushed concrete. Virgin steel slag aggregates and other expansive materials as determined

  7. COMMUNITY CHOICE AGGREGATION PILOT PROJECT

    E-Print Network [OSTI]

    generation development @ 5.5%. b) 100% debt financing. c) Financing term is 30 years. d) Minimum debt.9 M per year plus 10 cents per MWh, including IT. d) Activities include scheduling coordination Geothermal, Solid Fuel Biomass, Land Fill Gas Biomass, and Concentrating Solar Power. b) The cost

  8. Reduced-Order Modeling of Aggregated Thermostatic Loads With Demand Response

    SciTech Connect (OSTI)

    Zhang, Wei; Lian, Jianming; Chang, Chin-Yao; Kalsi, Karanjit; Sun, Yannan

    2012-12-12T23:59:59.000Z

    Demand Response is playing an increasingly important role in smart grid control strategies. Modeling the behavior of populations of appliances under demand response is especially important to evaluate the effectiveness of these demand response programs. In this paper, an aggregated model is proposed for a class of Thermostatically Controlled Loads (TCLs). The model efficiently includes statistical information of the population, systematically deals with heterogeneity, and accounts for a second-order effect necessary to accurately capture the transient dynamics in the collective response. However, an accurate characterization of the collective dynamics however requires the aggregate model to have a high state space dimension. Most of the existing model reduction techniques require the stability of the underlying system which does not hold for the proposed aggregated model. In this work, a novel model reduction approach is developed for the proposed aggregated model, which can significantly reduce its complexity with small performance loss. The original and the reducedorder aggregated models are validated against simulations of thousands of detailed building models using GridLAB-D, which is a realistic open source distribution simulation software. Index Terms demand response, aggregated model, ancillary

  9. Commercial Demonstration of the Manufactured Aggregate Processing Technology Utilizing Spray Dryer Ash

    SciTech Connect (OSTI)

    Milton Wu; Paul Yuran

    2006-12-31T23:59:59.000Z

    Universal Aggregates LLC (UA) was awarded a cost sharing Co-operative Agreement from the Department of Energy (DOE) through the Power Plant Improvement Initiative Program (PPII) to design, construct and operate a lightweight aggregate manufacturing plant at the Birchwood Power Facility in King George, Virginia in October 2001. The Agreement was signed in November 2002. The installation and start-up expenses for the Birchwood Aggregate Facility are $19.5 million. The DOE share is $7.2 million (37%) and the UA share is $12.3 million (63%). The original project team consists of UA, SynAggs, LLC, CONSOL Energy Inc. and P. J. Dick, Inc. Using 115,000 ton per year of spray dryer ash (SDA), a dry FGD by-product from the power station, UA will produce 167,000 tons of manufactured lightweight aggregate for use in production of concrete masonry units (CMU). Manufacturing aggregate from FGD by-products can provide an economical high-volume use and substantially expand market for FGD by-products. Most of the FGD by-products are currently disposed of in landfills. Construction of the Birchwood Aggregate Facility was completed in March 2004. Operation startup was begun in April 2004. Plant Integration was initiated in December 2004. Integration includes mixing, extrusion, curing, crushing and screening. Lightweight aggregates with proper size gradation and bulk density were produced from the manufacturing aggregate plant and loaded on a stockpile for shipment. The shipped aggregates were used in a commercial block plant for CMU production. However, most of the production was made at low capacity factors and for a relatively short time in 2005. Several areas were identified as important factors to improve plant capacity and availability. Equipment and process control modifications and curing vessel clean up were made to improve plant operation in the first half of 2006. About 3,000 tons of crushed aggregate was produced in August 2006. UA is continuing to work to improve plant availability and throughput capacity and to produce quality lightweight aggregate for use in commercial applications.

  10. Small file aggregation in a parallel computing system

    DOE Patents [OSTI]

    Faibish, Sorin; Bent, John M.; Tzelnic, Percy; Grider, Gary; Zhang, Jingwang

    2014-09-02T23:59:59.000Z

    Techniques are provided for small file aggregation in a parallel computing system. An exemplary method for storing a plurality of files generated by a plurality of processes in a parallel computing system comprises aggregating the plurality of files into a single aggregated file; and generating metadata for the single aggregated file. The metadata comprises an offset and a length of each of the plurality of files in the single aggregated file. The metadata can be used to unpack one or more of the files from the single aggregated file.

  11. Exploring OLAP Aggregates with Hierarchical Visualization Techniques

    E-Print Network [OSTI]

    Scholl, Marc H.

    interact with data in a predominantly "drill-down" fashion, i.e. from coarse grained aggregates towards-Line Analytical Processing (OLAP) has evolved into a core technology for comprehensive data analysis in business to be analyzed impose new requirements on OLAP systems. The goal of in- tegrating data from heterogeneous sources

  12. Exploring OLAP Aggregates with Hierarchical Visualization Techniques

    E-Print Network [OSTI]

    Reiterer, Harald

    with data cubes in a predominantly "drill- down" fashion, i.e. from coarse grained aggregates towards technology for comprehensive data analysis in business and, more recently, in various non-business environments. Growing complexity and volumes of the data to be analyzed impose new requirements on OLAP systems

  13. Physical controls on copepod aggregations in the Gulf of Maine

    E-Print Network [OSTI]

    Woods, Nicholas W

    2013-01-01T23:59:59.000Z

    This thesis explores the role that the circulation in the Gulf of Maine (GOM) plays in determining the distribution of dense aggregations of copepods. These aggregations are an important part of the marine ecosystem, ...

  14. Optical activity of electronically delocalized molecular aggregates: Nonlocal response formulation

    E-Print Network [OSTI]

    Mukamel, Shaul

    Optical activity of electronically delocalized molecular aggregates: Nonlocal response formulation and optical rotation in small optically active molecules, larger conjugated molecules, and molecular aggregates is developed using spatially nonlocal electric and magnetic optical response tensors (r

  15. Magnetic properties of aggregate polycrystalline diamond: implications for carbonado history

    E-Print Network [OSTI]

    Kletetschka, Gunther

    Magnetic properties of aggregate polycrystalline diamond: implications for carbonado history Gu form 20 June 2000; accepted 25 June 2000 Abstract Carbonados are aggregate polycrystalline diamonds features; magnetic hysteresis 1. Introduction Carbonados are sintered polycrystalline micro- diamond

  16. Introduction Coordinated Aggregation Resource Scheduling Reserve Scheduling Coordinated Aggregation of Distributed

    E-Print Network [OSTI]

    Resource Scheduling Reserve Scheduling Power Balance Available power g(t) - Bulk power B - Load Aggregation Resource Scheduling Reserve Scheduling Power Balance ... !" #$%&"'()*+" " ,*-*+.*-" " ,*/*)01" devil is in the details what variability? - variability in wind or rooftop solar? - what time scales

  17. From amorphous aggregates to polymer bundles: The role of stiffness on structural phases in polymer aggregation

    E-Print Network [OSTI]

    Johannes Zierenberg; Wolfhard Janke

    2015-01-24T23:59:59.000Z

    We study the aggregation transition of a finite theta-polymer system in dependence on the bending stiffness $\\kappa$ with the help of parallel multicanonical simulations. In order to distinguish amorphous aggregates from polymer bundles we introduce an order parameter, measuring the correlation of the end-to-end vectors. With the help of this order parameter, we construct generic $T$-$\\kappa$ phase diagrams for systems with $2$ and $8$ polymers and discuss the occurring phases from amorphous aggregates to bundle structures. For an intermediate stiffness range we find multiple aggregated phases which change with increasing number of polymers and discuss their nature with the help of microcanonical analyses. We show that the stiffness of semiflexible theta polymers is the distinguishing parameter for the emergent structural motifs.

  18. Towards Semi-automated Workflow-based Aggregation of Web Services

    E-Print Network [OSTI]

    Brogi, Antonio

    -automated engineered process. We present a methodology which, given a set of service contracts, tries to construct an aggregation of such services. Service contracts include a description of the service behaviour (expressed-crafting to a semi-automated engineered process. We present a methodology which, given a set of service contracts

  19. Aggregation Modulators Interfere with Membrane Interactions of b2-Microglobulin Fibrils

    E-Print Network [OSTI]

    Jelinek, Raz

    Aggregation Modulators Interfere with Membrane Interactions of b2-Microglobulin Fibrils Tania of the impact of fibrillation modulators upon membrane interactions of b2-microglobulin (b2m) fibrils ABSTRACT Amyloid fibril accumulation is a pathological hallmark of several devastating disorders, including

  20. Characterization of aggregate shape properties using a computer automated system

    E-Print Network [OSTI]

    Al Rousan, Taleb Mustafa

    2005-02-17T23:59:59.000Z

    Development Methodology?????.. 176 Statistical-Based Aggregate Shape Classification??............... 177 Analysis and Results???????...?????????. 181 Aggregate Texture versus Angularity????????? 181 Effect of Crushing and Size on Shape Properties...)?????????????.. 40 2.24 Laser-based Aggregate Scanning System (LASS) Hardware Architecture??????????????????????? 41 2.25 Illustration of the Erosion-Dilation and Fractal Behavior Method???????????????...????????? 48 2.26 Illustration of the Difference...

  1. Synthetic clay-magnetite aggregates designed for controlled deposition experiments

    E-Print Network [OSTI]

    Dunin-Borkowski, Rafal E.

    Synthetic clay-magnetite aggregates designed for controlled deposition experiments Feinberg, J M of synthetic clay-magnetite aggregates whose physical attributes can be tailored for controlled depositional orientation or oriented aggregation. Grain size distributions of magnetite in three different clay

  2. Thermodynamics and Structure of Peptide-Aggregates at Membrane Surfaces

    E-Print Network [OSTI]

    Quake, Stephen R.

    Thermodynamics and Structure of Peptide- Aggregates at Membrane Surfaces INAUGURALDISSERTATION zur. Introduction 01 1.1 Thermodynamics of Protein Aggregation 01 1.2 Formation of Protein Aggregates 03 1 and P-glycoprotein: Connecting Thermodynamics and Membrane Structure with Functional Activity 23 3

  3. Light scattering with oxide nanocrystallite aggregates for dye-

    E-Print Network [OSTI]

    Cao, Guozhong

    Light scattering with oxide nanocrystallite aggregates for dye- sensitized solar cell application 4://spiedl.org/terms #12;Light scattering with oxide nanocrystallite aggregates for dye-sensitized solar cell application used for a photoelectrode in a dye-sensitized solar cell, the aggregates can be designed to generate

  4. Experimental Evaluation of New Generation Aggregate Image Measurement System

    E-Print Network [OSTI]

    Gates, Leslie L.

    2010-07-14T23:59:59.000Z

    . 2003). The current Superpave methods do not measure aggregates texture, although it has significance influence on performance (Fletcher et al. 2002). In some cases, the fine aggregate angularity method does not distinguish between poor and high...) ......................................................... 14 Sphericity Index (3D Form Analysis) ................................................. 14 Sensitivity, Repeatability, and Reproducibility of AIMS ................................ 15 CHAPTER III IMPROVEMENTS OF THE AGGREGATE IMAGE...

  5. Energy-Efficient Aggregate Query Evaluation in Sensor Networks

    E-Print Network [OSTI]

    Liang, Weifa

    Energy-Efficient Aggregate Query Evaluation in Sensor Networks Zhuoyuan Tu and Weifa Liang efficiently. This paper considers the aggregate query evaluation in a sensor network database to the base station, which is called in-network aggregation. In other words, a tree rooted at the base station

  6. Communal spaces: aggregation and integration in the Mogollon Region of the United States Southwest

    SciTech Connect (OSTI)

    Nisengard, Jennifer E.

    2006-12-01T23:59:59.000Z

    Aggregation and integration are processes that occur in human societies throughout the globe. An informative example of population aggregation and social integration can be observed in the North American desert borderlands from A.D. 250 to 1450 in the area known as the Mogollon region. In fact, Mogollon communities oscillated from smaller social groups into larger ones and dispersed into smaller groups only to form larger ones again. For this reason, examining the groups of people living in the Mogollon region provides a magnified view of social change over a substantial period. Understanding patterns of aggregation and integration provides researchers with the promise for research into the nature of these phenomena. In general, the Mogollon region is characterized by limited water supplies and low average annual precipitation. However, pockets of the Mogollon area, including the Mimbres valley and the Gila River valley, represent oases, where permanent rivers and their associated tributaries allowed for the pursuit of agricultural endeavors and access to a wide variety of wild plant and animal resources. The areas with these kinds of potential became population centers for previously dispersed groups of people living in the region. These people exploited natural resources and practiced agriculture in areas surrounding their communities. Over time, more organized aggregated and socially integrated communities were established throughout the region. Using ancient Mogollon communal architecture, commonly called kivas, this study examines issues of, and evidence for, population aggregation and social integration.

  7. Synthetic aggregate compositions derived from spent bed materials from fluidized bed combustion and fly ash

    DOE Patents [OSTI]

    Boyle, Michael J. (Aston, PA)

    1994-01-01T23:59:59.000Z

    Cementitious compositions useful as lightweight aggregates are formed from a blend of spent bed material from fluidized bed combustion and fly ash. The proportions of the blend are chosen so that ensuing reactions eliminate undesirable constituents. The blend is then mixed with water and formed into a shaped article. The shaped article is preferably either a pellet or a "brick" shape that is later crushed. The shaped articles are cured at ambient temperature while saturated with water. It has been found that if used sufficiently, the resulting aggregate will exhibit minimal dimensional change over time. The aggregate can be certified by also forming standardized test shapes, e.g., cylinders while forming the shaped articles and measuring the properties of the test shapes using standardized techniques including X-ray diffraction.

  8. Beyond Simple Aggregates: Indexing for Summary Queries

    E-Print Network [OSTI]

    Yi, Ke "Kevin"

    # of employees #12;3-1 Reporting vs. Aggregation Date Keyword 2011.04.08 Masters 2011 2011.04.08 Libya 2011.04.07 Japan nuclear crisis 2011.04.07 Libya · · · 2011.03.11 Japan earthquake 2011.03.11 Japan tsunami 2011 2011.04.08 Libya 2011.04.07 Japan nuclear crisis 2011.04.07 Libya · · · 2011.03.11 Japan earthquake

  9. On the friction coefficient of straight-chain aggregates

    E-Print Network [OSTI]

    Lorenzo Isella; Yannis Drossinos

    2011-01-31T23:59:59.000Z

    A methodology to calculate the friction coefficient of an aggregate in the continuum regime is proposed. The friction coefficient and the monomer shielding factors, aggregate-average or individual, are related to the molecule-aggregate collision rate that is obtained from the molecular diffusion equation with an absorbing boundary condition on the aggregate surface. Calculated friction coefficients of straight chains are in very good agreement with previous results, suggesting that the friction coefficients may be accurately calculated from the product of the collision rate and an average momentum transfer,the latter being independent of aggregate morphology. Langevin-dynamics simulations show that the diffusive motion of straight-chain aggregates may be described either by a monomer-dependent or an aggregate-average random force, if the shielding factors are appropriately chosen.

  10. low-density particles include spheres with silicate cores and organic mantles, carbonaceous spheres,

    E-Print Network [OSTI]

    Napp, Nils

    low-density particles include spheres with silicate cores and organic mantles, carbonaceous spheres is primarily a single silicate with a mantle-core structure, whereas the others are complex aggregates of various micrometer- to nanometer-size phases such as oxides, metal, and sulfides, in addition to silicate

  11. Countries Gasoline Prices Including Taxes

    Gasoline and Diesel Fuel Update (EIA)

    Selected Countries (U.S. dollars per gallon, including taxes) Date Belgium France Germany Italy Netherlands UK US 51115 6.15 6.08 6.28 6.83 6.96 6.75 3.06 5415 6.14 6.06...

  12. Sponsorship includes: Agriculture in the

    E-Print Network [OSTI]

    Nebraska-Lincoln, University of

    Sponsorship includes: · Agriculture in the Classroom · Douglas County Farm Bureau · Gifford Farm · University of Nebraska Agricultural Research and Development Center · University of Nebraska- Lincoln Awareness Coalition is to help youth, primarily from urban communities, become aware of agriculture

  13. aggregate stimulates macrophages: Topics by E-print Network

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

    Dobson, Christopher M. 2015-01-01 8 Laser-stimulated Synthesis of Large Nanostructured Fractal Silver Aggregates CERN Preprints Summary: A Laser-stimulated synthesis of large...

  14. aggregates by gradation: Topics by E-print Network

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

    seen between microgravity and ground experiments, both in the structure of the formed fractal aggregates as well as the kinetics of growth. Ground measurements are severely...

  15. aggregates by source: Topics by E-print Network

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

    seen between microgravity and ground experiments, both in the structure of the formed fractal aggregates as well as the kinetics of growth. Ground measurements are severely...

  16. aggregates enhance recovery: Topics by E-print Network

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

    Prabir 28 Local anisotropy and giant enhancement of local electromagnetic fields in fractal aggregates of metal nanoparticles CERN Preprints Summary: We have shown within the...

  17. aggregates research icar: Topics by E-print Network

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

    more important properties of classical random walks, namely, their ability to build fractal structures in diffusion-limited aggregation, has been particularly noteworthy....

  18. aggregates by treatment: Topics by E-print Network

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

    seen between microgravity and ground experiments, both in the structure of the formed fractal aggregates as well as the kinetics of growth. Ground measurements are severely...

  19. aggregating material isolated: Topics by E-print Network

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

    more important properties of classical random walks, namely, their ability to build fractal structures in diffusion-limited aggregation, has been particularly noteworthy....

  20. aggregate base material: Topics by E-print Network

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

    steady state particle size distributions in a paradigmatic 2d flow. We show how a fractal structure, typical for aggregates in natural systems, can be incorporated in an...

  1. Illinois Solar Energy Association- Renewable Energy Credit Aggregation Program

    Broader source: Energy.gov [DOE]

    The Illinois Solar Energy Association offers the Renewable Energy Credit Aggregation Program (RECAP) to Illinois solar photovoltaic (PV) system owners, providing them with an opportunity to recei...

  2. amyloid peptide aggregation: Topics by E-print Network

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

    Computational Insights into Mechanisms and Structures of Metallopeptidases and Amyloid Beta Peptide Aggregation. Open Access Theses and Dissertations Summary: ??In the present...

  3. aggregation induces phosphorylation: Topics by E-print Network

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

    with experimental findings as a function of field strength and layer thickness. Our analysis yields a crossover in the exponent for the scaling behavior of the aggregate...

  4. Energy Department Announces Funding to Develop Aggregate Purchasing...

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

    today announced up to 2 million to support aggregate purchasing models for plug-in electric and other alternative fuel and advanced technology vehicles, subsystems,...

  5. Aggregated Purchasing and Workplace Charging Can Drive EV Market...

    Office of Environmental Management (EM)

    Standing before PG&E's new plug-in electric bucket truck, Secretary Moniz announced the Energy Department's notice of intent to support pilot aggregated purchasing models for...

  6. aggregates rock and stone: Topics by E-print Network

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

    CiteSeer Summary: Abstract. The main reason for usage of crushed stone mineral aggregate is need for concrete construction building with care about environmental...

  7. aggregate economic damage: Topics by E-print Network

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

    partition problem Barthelemy and LeClerc 1995 and clustering, JACM 2008 Tuesday, October 15, 13 12;Clustering aggregation Many different clusterings Terzi, Evimaria 28...

  8. Aggregation, Coarsening, and Phase Transformation in ZnSNanoparticles...

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

    Coarsening, and Phase Transformation in ZnS NanoparticlesStudied by Molecular Dynamics Simulations. Aggregation, Coarsening, and Phase Transformation in ZnS...

  9. Evaluation of synthetic aggregates for use in concrete

    E-Print Network [OSTI]

    Ahmad, Hafizuddin

    1970-01-01T23:59:59.000Z

    hydroxide (NaOH) tests were performed to evaluate the chemical reactivity of the aggregates. An aggre- gate freeze-thaw test was performed to study the physical durability of the aggregates. In addition, ASTII 067 (5-hr boiling test) was modi. fied... to deteranire the saturation coeificient as well as the freeze-thaw resistance of the aggregates. This test, called the 5-hr. boiling test, w . " shown to provide reliable information re- garding the freeze-thaw resistance of aggregates oi varying quali...

  10. Prediction Markets as an Aggregation Mechanism for Collective Intelligence

    E-Print Network [OSTI]

    Watkins, Jennifer H.

    2007-01-01T23:59:59.000Z

    through online prediction markets (undergraduate thesis).J. , & Zitzewitz, E. (2004). Prediction markets. Journal ofPrediction Markets as an Aggregation Mechanism for

  11. aggregation inhibitors reduce: Topics by E-print Network

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

    Morimoto, Richard 10 Reduced-Order Modeling of Aggregated Thermostatic Loads With Demand Response Computer Technologies and Information Sciences Websites Summary:...

  12. aggregate electricity demand: Topics by E-print Network

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

    Conversion and Utilization Websites Summary: LBNL-6417E Grid Integration of Aggregated Demand Response, Part I: Load Availability Profiles Resources 4 12;12;12;CHAPTER 3:...

  13. Tertiary nitrogen heterocyclic material to reduce moisture-induced damage in asphalt-aggregate mixtures

    DOE Patents [OSTI]

    Plancher, Henry (Laramie, WY); Petersen, Joseph C. (Laramie, WY)

    1982-01-01T23:59:59.000Z

    Asphalt-aggregate roads crack when subjected to freezing and thawing cycles. Herein, the useful life of asphalts are substantially improved by a minor amount of a moisture damage inhibiting agent selected from compounds having a pyridine moiety, including acid salts of such compounds. A shale oil fraction may serve as the source of the improving agent and may simply be blended with conventional petroleum asphalts.

  14. Lifting Integrity Constraints in Binary Aggregation Umberto Grandi

    E-Print Network [OSTI]

    Endriss, Ulle

    Lifting Integrity Constraints in Binary Aggregation Umberto Grandi and Ulle Endriss Institute language and we explore the question of whether or not a given aggregation procedure will lift a given, this discipline has received increasing attention in Artificial Intelligence (AI), as testified by a large number

  15. UNCORRECTEDPROOF The use of scintillometry for validating aggregation schemes over

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    evapotranspiration is based on the use of aggregation schemes in conjunction with energy-balance or land of the energy balance providing the estimates of the available energy (AE(=Rn G), where Rn and G are the net the Marrakech city (Morocco), have been used to test the aggregation schemes. The Agdal oliveyard was made up

  16. Aggregation Behavior of Two Asphaltenic Fractions in Aromatic Solvents

    E-Print Network [OSTI]

    Loh, Watson

    Aggregation Behavior of Two Asphaltenic Fractions in Aromatic Solvents Rahoma S. Mohamed* and Anto. The results indicated possible asphaltene aggregation as well as the probable existence of critical micelle fraction. Average molecular areas for asphaltenes adsorbed at different interfaces estimated from surface

  17. A Single Disulfide Bond Differentiates Aggregation Pathways of 2-Microglobulin

    E-Print Network [OSTI]

    Dokholyan, Nikolay V.

    simulation; aggregation; domain swapping*Corresponding author Introduction Amyloid fibrils are insolubleA Single Disulfide Bond Differentiates Aggregation Pathways of 2-Microglobulin Yiwen Chen1 at Chapel Hill Chapel Hill, NC 27599, USA Deposition of wild-type 2-microglobulin (2m) into amyloid

  18. Measurement and quantification of aggregate thermal coefficient of expansion

    E-Print Network [OSTI]

    Chande, Gautam U

    1997-01-01T23:59:59.000Z

    SRG 8 67 El Paso El Paso Granite Slag 5 9042 9. 31163 Panama 3/8" 10. 3914 Panama 1" 12 904 28 Figure 6. Measurement of CTE of aggregate sample Scanning electron microscopy and?i-ray microanaiysis It is known that the CTE of the aggregate...

  19. aggregating brain cell: Topics by E-print Network

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

    aggregating brain cell First Page Previous Page 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 Biomimetic Dye Aggregate Solar...

  20. Role of Standard Demand Response Signals for Advanced Automated Aggregation

    SciTech Connect (OSTI)

    Lawrence Berkeley National Laboratory; Kiliccote, Sila

    2011-11-18T23:59:59.000Z

    Emerging standards such as OpenADR enable Demand Response (DR) Resources to interact directly with Utilities and Independent System Operators to allow their facility automation equipment to respond to a variety of DR signals ranging from day ahead to real time ancillary services. In addition, there are Aggregators in todays markets who are capable of bringing together collections of aggregated DR assets and selling them to the grid as a single resource. However, in most cases these aggregated resources are not automated and when they are, they typically use proprietary technologies. There is a need for a framework for dealing with aggregated resources that supports the following requirements: Allows demand-side resources to participate in multiple DR markets ranging from wholesale ancillary services to retail tariffs without being completely committed to a single entity like an Aggregator; Allow aggregated groups of demand-side resources to be formed in an ad hoc fashion to address specific grid-side issues and support the optimization of the collective response of an aggregated group along a number of different dimensions. This is important in order to taylor the aggregated performance envelope to the needs to of the grid; Allow aggregated groups to be formed in a hierarchical fashion so that each group can participate in variety of markets from wholesale ancillary services to distribution level retail tariffs. This paper explores the issues of aggregated groups of DR resources as described above especially within the context of emerging smart grid standards and the role they will play in both the management and interaction of various grid-side entities with those resources.

  1. Automation of Capacity Bidding with an Aggregator Using Open Automated Demand Response

    E-Print Network [OSTI]

    Kiliccote, Sila

    2011-01-01T23:59:59.000Z

    program,demand responseaggregator,demandresponse viiWITH AN AGGREGATOR USING OPEN AUTOMATED DEMAND RESPONSE ThisWithanAggregatorUsingOpenAutomatedDemandResponseis

  2. Designing the Optimal Pricing Policy for Aggregators in the Smart Grid Xue Lin, Yanzhi Wang, and Massoud Pedram

    E-Print Network [OSTI]

    Pedram, Massoud

    the electrical energy storage ability of EV batteries is explored for frequency regulation, load balancing, etc a wide range of energy resources, including fossil fuels, nuclear power and renewable energy such as wind. designed an aggregator for V2G frequency regulation service utilizing active discharge of EVs

  3. BTS: SEP How To Guide: Aggregate Under-served Markets to Buying...

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

    as community development funds. Can reduce energy costs through aggregation; alleviate drain on budget from high energy costs. Aggregate under-served markets into buying pools...

  4. alpha-synuclein processing aggregation: Topics by E-print Network

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

    London 17 Particle-based modelling of aggregation and fragmentation processes: Fractal-like aggregates Nonlinear Sciences (arXiv) Summary: The incorporation of particle...

  5. A STUDY OF AGGREGATION BIAS IN ESTIMATING THE MARKET FOR HOME HEATING AND COOLING EQUIPMENT

    E-Print Network [OSTI]

    Wood, D.J.

    2010-01-01T23:59:59.000Z

    models: aggregated by SMSA market share central cooling all gas space heat all oilmodels: aggregated by regions market share central cooling all gas space heat all oil

  6. A representative particle approach to coagulation and fragmentation of dust aggregates and fluid droplets

    E-Print Network [OSTI]

    A. Zsom; C. P. Dullemond

    2008-07-31T23:59:59.000Z

    Context: There is increasing need for good algorithms for modeling the aggregation and fragmentation of solid particles (dust grains, dust aggregates, boulders) in various astrophysical settings, including protoplanetary disks, planetary- and sub-stellar atmospheres and dense molecular cloud cores. Here we describe a new algorithm that combines advantages of various standard methods into one. Aims: The aim is to develop a method that 1) can solve for aggregation and fragmentation, 2) can easily include the effect and evolution of grain properties such as compactness, composition, etc., and 3) can be built as a coagulation/fragmentation module into a hydrodynamics simulations. Methods: We develop a Monte-Carlo method in which we follow the 'life' of a limited number of representative particles. Each of these particles is associated with a certain fraction of the total dust mass and thereby represents a large number of true particles which all are assumed to have the same properties as their representative particle. Under the assumption that the total number of true particles vastly exceeds the number of representative particles, the chance of a representative particle colliding with another representative particle is negligibly small, and we therefore ignore this possibility. This now makes it possible to employ a statistical approach to the evolution of the representative particles. Results: The method reproduces the known analytic solutions of simplified coagulation kernels, and compares well to numerical results for Brownian motion using other methods. For reasonably well-behaved kernels it produces good results even for moderate number of swarms.

  7. Process for producing an aggregate suitable for inclusion into a radiation shielding product

    DOE Patents [OSTI]

    Lessing, Paul A. (Idaho Falls, ID); Kong, Peter C. (Idaho Falls, ID)

    2000-01-01T23:59:59.000Z

    The present invention is directed to methods for converting depleted uranium hexafluoride to a stable depleted uranium silicide in a one-step reaction. Uranium silicide provides a stable aggregate material that can be added to concrete to increase the density of the concrete and, consequently, shield gamma radiation. As used herein, the term "uranium silicide" is defined as a compound generically having the formula U.sub.x Si.sub.y, wherein the x represents the molecules of uranium and the y represent the molecules of silicon. In accordance with the present invention, uranium hexafluoride is converted to a uranium silicide by contacting the uranium hexafluoride with a silicon-containing material at a temperature in a range between about 1450.degree. C. and about 1750.degree. C. The stable depleted uranium silicide is included as an aggregate in a radiation shielding product, such as a concrete product.

  8. An Equilibrium Approach to the Aggregation of Beliefs

    E-Print Network [OSTI]

    Jin, Yi; Zhang, Jianbo

    2013-06-01T23:59:59.000Z

    that satis?es Walras law Pz(P) #17; 0; then there is some P such that z(P) #20; 0: (see for example Varian pp321). The uniqueness of the equilibrium aggregation can be obtained by simply applying a theorem in Stella Dafermos (1990) pp396: Lemma 3 (Stella... the agents by varying his probabilities assigned to each state. When the aggregation reaches an equilibrium, all the claims from all agents are mutually covered for every realization of the state, and thus an aggregation 3 of individual beliefs is obtained...

  9. Alkali-aggregate reaction in concrete containing high-alkali cement and granite aggregate

    SciTech Connect (OSTI)

    Owsiak, Z

    2004-01-01T23:59:59.000Z

    The paper discusses results of the research into the influence of high-alkali Portland cement on granite aggregate. The deformation of the concrete structure occurred after 18 months. The research was carried out by means of a scanning electron microscope equipped with a high-energy dispersive X-ray analyzer that allowed observation of unpolished sections of concrete bars exhibiting the cracking pattern typical of the alkali-silica reaction. Both the microscopic observation and the X-ray elemental analysis confirm the presence of alkali-silica gel and secondary ettringite in the cracks.

  10. Nanocrystal/J-aggregate constructs : chemistry, energy transfer, and applications

    E-Print Network [OSTI]

    Walker, Brian J. (Brian Jacob)

    2011-01-01T23:59:59.000Z

    The interaction of light with matter is one of the most central subjects to modern chemistry. Two types of materials, semiconductor nanocrystals and J-aggregates of cyanine dyes, have been developed chiefly due to their ...

  11. Commercial Building Tenant Energy Usage Aggregation and Privacy

    SciTech Connect (OSTI)

    Livingston, Olga V.; Pulsipher, Trenton C.; Anderson, David M.; Wang, Na

    2014-10-31T23:59:59.000Z

    A growing number of building owners are benchmarking their building energy use. This requires the building owner to acquire monthly whole-building energy usage information, which can be challenging for buildings in which individual tenants have their own utility meters and accounts with the utility. Some utilities and utility regulators have turned to aggregation of customer energy use data (CEUD) as a way to give building owners whole-building energy usage data while protecting customer privacy. Meter profile aggregation adds a layer of protection that decreases the risk of revealing CEUD as the number of meters aggregated increases. The report statistically characterizes the similarity between individual energy usage patterns and whole-building totals at various levels of meter aggregation.

  12. aggregates colonization growth: Topics by E-print Network

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

    Lesanovsky, I; Booth, D; Shaffer, J P; Pfau, T; Lw, R 2014-01-01 6 Transition in the fractal properties from diffusion-limited aggregation to Laplacian growth via their...

  13. aggregating devices fads: Topics by E-print Network

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

    as compared with non-fractal aggregates (where the critical stress is practically size-independent). This is due to the fact that breaking up a fractal object leads to denser...

  14. aggregate utilizacao da: Topics by E-print Network

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

    of these quantum diffusion-limited aggregates vary between 1.43 and 2, depending on the size of the initial wave packet. David B. Johnson; Gonzalo Ordez 2011-11-02 52...

  15. aggregates involves smad: Topics by E-print Network

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

    of these quantum diffusion-limited aggregates vary between 1.43 and 2, depending on the size of the initial wave packet. David B. Johnson; Gonzalo Ordez 2011-11-02 96...

  16. adenosine diphosphate-induced aggregation: Topics by E-print...

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

    of these quantum diffusion-limited aggregates vary between 1.43 and 2, depending on the size of the initial wave packet. David B. Johnson; Gonzalo Ordez 2011-11-02 68...

  17. aggregate mixtures: Topics by E-print Network

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

    of these quantum diffusion-limited aggregates vary between 1.43 and 2, depending on the size of the initial wave packet. David B. Johnson; Gonzalo Ordez 2011-11-02 First Page...

  18. anionic surfactant aggregation: Topics by E-print Network

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

    ZnO nanostructures formation from zinc nanoclasters size of several nanometers to ZnO fractal aggregates (FA) size up to hundreds of nanometers. Determinants of this process are...

  19. aggregative citrobacter freundii: Topics by E-print Network

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

    of these quantum diffusion-limited aggregates vary between 1.43 and 2, depending on the size of the initial wave packet. David B. Johnson; Gonzalo Ordez 2011-11-02 53...

  20. aggregating proteoglycan aggrecan: Topics by E-print Network

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

    of these quantum diffusion-limited aggregates vary between 1.43 and 2, depending on the size of the initial wave packet. David B. Johnson; Gonzalo Ordez 2011-11-02 71...

  1. aggregate gradation: Topics by E-print Network

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

    of these quantum diffusion-limited aggregates vary between 1.43 and 2, depending on the size of the initial wave packet. David B. Johnson; Gonzalo Ordez 2011-11-02 First Page...

  2. alter aggregate characteristics: Topics by E-print Network

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

    state particle size distributions in a 3-d synthetic turbulent flow. We show how a fractal-like structure, typical of aggregates in natural systems, can be incorporated in an...

  3. aggregate decay heat: Topics by E-print Network

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

    as compared with non-fractal aggregates (where the critical stress is practically size-independent). This is due to the fact that breaking up a fractal object leads to denser...

  4. Grid Integration of Aggregated Demand Response, Part I: Load Availability

    E-Print Network [OSTI]

    LBNL-6417E Grid Integration of Aggregated Demand Response, Part I: Load Availability Profiles Resources 4 #12;#12;#12;CHAPTER 3: Results: DR Profiles 3.1 Projected Demand Response Availability in 2020

  5. Effect of red blood cells on platelet aggregation

    E-Print Network [OSTI]

    Karniadakis, George E.

    This study briefly reviews the model that describes platelet behavior resulting in aggregation and thrombus formation. This is followed by an overview of the basics of the dissipative particle dynamics (DPD), the simulation ...

  6. Tangible interfaces for manipulating aggregates of digital information

    E-Print Network [OSTI]

    Ullmer, Brygg Anders

    2002-01-01T23:59:59.000Z

    This thesis develops new approaches for people to physically represent and interact with aggregates of digital information. These support the concept of Tangible User Interfaces (TUIs), a genre of human-computer interaction ...

  7. Water adsorption on aggregates of spherical aerosol nano particles

    E-Print Network [OSTI]

    Nie, Chu

    2005-11-01T23:59:59.000Z

    A three dimensional integral equation is developed in order to compute water adsorption onto aggregates of spherical aerosol nano particles. The integral equation is derived from molecular density functional theory, with a weighted density...

  8. Recycling of PET bottles as fine aggregate in concrete

    SciTech Connect (OSTI)

    Frigione, Mariaenrica, E-mail: mariaenrica.frigione@unisalento.i [Department of Engineering for Innovation, University of Salento, Via per Monteroni, 73100 Lecce (Italy)

    2010-06-15T23:59:59.000Z

    An attempt to substitute in concrete the 5% by weight of fine aggregate (natural sand) with an equal weight of PET aggregates manufactured from the waste un-washed PET bottles (WPET), is presented. The WPET particles possessed a granulometry similar to that of the substituted sand. Specimens with different cement content and water/cement ratio were manufactured. Rheological characterization on fresh concrete and mechanical tests at the ages of 28 and 365 days were performed on the WPET/concretes as well as on reference concretes containing only natural fine aggregate in order to investigate the influence of the substitution of WPET to the fine aggregate in concrete. It was found that the WPET concretes display similar workability characteristics, compressive strength and splitting tensile strength slightly lower that the reference concrete and a moderately higher ductility.

  9. Distributed Regulation Allocation with Aggregator Coordinated Electric Vehicles

    E-Print Network [OSTI]

    Liang, Ben

    Distributed Regulation Allocation with Aggregator Coordinated Electric Vehicles Sun Sun, Min Dong, and Ben Liang Dept. of Electrical and Computer Engineering, University of Toronto, Canada Dept. of Electrical, Computer and Software Engineering, University of Ontario Institute of Technology, Canada Email

  10. THE SPATIAL AGGREGATION LANGUAGE FOR MODELING AND CONTROLLING DISTRIBUTED

    E-Print Network [OSTI]

    Bailey-Kellogg, Chris

    THE SPATIAL AGGREGATION LANGUAGE FOR MODELING AND CONTROLLING DISTRIBUTED PHYSICAL SYSTEMS study novel approaches to decentralized control de- sign, in the context of thermal regulation important science and engineering applications, such as predicting weather patterns, controlling

  11. artificial aggregates: Topics by E-print Network

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

    use of river sand less attractive, a substitute or replacement product for concrete industry needs to be found. River sand is most commonly used fine aggregate in the production...

  12. Aggregation of student answers in a classroom setting

    E-Print Network [OSTI]

    Smith, Amanda C

    2006-01-01T23:59:59.000Z

    In a typical class, an instructor does not have enough time to poll all students for answers to questions, although it would be the best method for discovering students' misconceptions. The aggregator module of a system ...

  13. Moisture Diffusion in Asphalt Binders and Fine Aggregate Mixtures

    E-Print Network [OSTI]

    Vasconcelos, Kamilla L.

    2011-08-08T23:59:59.000Z

    cost in highway maintenance and vehicle operations. One key mechanism of how moisture reaches the asphalt-aggregate interface is by its permeation or diffusion through the asphalt binder or mastic. Different techniques are available for diffusion...

  14. Interpretation and aggregation of marks in classroom learning partner

    E-Print Network [OSTI]

    Wu, Kenneth D

    2008-01-01T23:59:59.000Z

    This thesis explores the mark understanding problem in the context of a Tablet-PC-based classroom interaction system. It presents a novel method for interpreting digital ink strokes on background images, and aggregating ...

  15. Essays on Broad Divisia Monetary Aggregates: Admissibility and Practice

    E-Print Network [OSTI]

    Mattson, Ryan Scott

    2013-08-31T23:59:59.000Z

    The assumption of weak separability of goods and services in the utility function is ubiquitous in macroeconomic modeling. If the goods and services are weakly separable, they can be combined into an "admissible" aggregate. ...

  16. A framework for a coarse aggregate classification system

    E-Print Network [OSTI]

    Peapully, Srikrishna

    1994-01-01T23:59:59.000Z

    System 1 . 4 . . 5 . . 6 II OVERVIEW OF EXISTING CLASSIFICATION SYSTEMS . . . . 8 8 14 Soil Classification Systems Rock Classification Systems Previous Efforts in Developing an Aggregate Classification System... for Rocks . . 19 3. 1 Characterization of Aggregate Shape Based on Form Factor Proposed by Folk . . . . . . . . . . . . . . . 40 3. 2 Four Shape Categories as Described by Zingg . . 41 3. 3 Surface Texture Characterization Proposed by Kummer . . 42 4. 1...

  17. Fractal and projected structure properties of soot aggregates

    SciTech Connect (OSTI)

    Koeylue, U.O.; Faeth, G.M. [Univ. of Michigan, Ann Arbor, MI (United States). Dept. of Aerospace Engineering] [Univ. of Michigan, Ann Arbor, MI (United States). Dept. of Aerospace Engineering; Farias, T.L.; Carvalho, M.G. [Instituto Superior Tecnico, Lisbon (Portugal). Mechanical Engineering Dept.] [Instituto Superior Tecnico, Lisbon (Portugal). Mechanical Engineering Dept.

    1995-03-01T23:59:59.000Z

    The structure of soot aggregates was investigated, emphasizing the fractal properties as well as the relationship between the properties of actual and projected soot images. This information was developed by considering numerically simulated soot aggregates based on cluster-cluster aggregation as well as measured soot aggregates based on thermophoretic sampling and analysis by transmission electron microscopy (TEM) of soot for a variety of fuels (acetylene, propylene, ethylene, and propane) and both laminar and turbulent diffusion flame conditions. It was found that soot aggregate fractal properties are relatively independent of fuel type and flame condition, yielding a fractal dimension of 1.82 and a fractal prefactor of 8.5, with experimental uncertainties (95% confidence) of 0.08 and 0.5, respectively. Relationships between the actual and projected structure properties of soot, e.g., between the number of primary particles and the projected area and between the radius of gyration of an aggregate and its projected image, also are relatively independent of fuel type and flame condition.

  18. A Generalized Eigensolver based on Smoothed Aggregation (GES-SA) for Initializing Smoothed Aggregation Multigrid (SA)

    SciTech Connect (OSTI)

    Brezina, M; Manteuffel, T; McCormick, S; Ruge, J; Sanders, G; Vassilevski, P S

    2007-05-31T23:59:59.000Z

    Consider the linear system Ax = b, where A is a large, sparse, real, symmetric, and positive definite matrix and b is a known vector. Solving this system for unknown vector x using a smoothed aggregation multigrid (SA) algorithm requires a characterization of the algebraically smooth error, meaning error that is poorly attenuated by the algorithm's relaxation process. For relaxation processes that are typically used in practice, algebraically smooth error corresponds to the near-nullspace of A. Therefore, having a good approximation to a minimal eigenvector is useful to characterize the algebraically smooth error when forming a linear SA solver. This paper discusses the details of a generalized eigensolver based on smoothed aggregation (GES-SA) that is designed to produce an approximation to a minimal eigenvector of A. GES-SA might be very useful as a standalone eigensolver for applications that desire an approximate minimal eigenvector, but the primary aim here is for GES-SA to produce an initial algebraically smooth component that may be used to either create a black-box SA solver or initiate the adaptive SA ({alpha}SA) process.

  19. RETURN ON INVESTMENT FROM ONLINE BANKING SERVICES: AN ANALYSIS OF FINANCIAL ACCOUNT AGGREGATION

    E-Print Network [OSTI]

    Melo de Brito Carvalho, Tereza

    2003-01-27T23:59:59.000Z

    The successful adoption of Financial Account Aggregation requires a careful analysis of the business

  20. Capillary Break Beneath a Slab: Polyethylene Sheeting over Aggregate; Southwestern Pennsylvania (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2014-07-01T23:59:59.000Z

    This document provides content for three areas of the Building America Solution Center. First, "Insulating Closed Crawlspace Walls and Band Joist Area" describes how to install rigid foam insulation on the interior perimeter walls and band joist area in closed crawlspace foundations of homes. Second, "Removing Construction Debris from Flexible Ducts" describes how to clean flexible ducts after construction or major renovation of a home to remove debris resulting from building materials, particularly airborne dust and particulates. Third, images, CAD drawings, and a case study illustrate right and wrong ways to apply polyethylene sheeting over aggregate. Similarly, a CAD drawing is included that illustrates the use of a concrete slab over polyethylene.

  1. Linking Microbial Community Structure to ?-Glucosidic Function in Soil Aggregates

    SciTech Connect (OSTI)

    Bailey, Vanessa L.; Fansler, Sarah J.; Stegen, James C.; McCue, Lee Ann

    2013-10-01T23:59:59.000Z

    To link microbial community 16S structure to a measured function in a natural soil we have scaled both DNA and ?-glucosidase assays down to a volume of soil that may approach a unique microbial community. ?-glucosidase activity was assayed in 450 individual aggregates which were then sorted into classes of high or low activities, from which groups of 10 or 11 aggregates were identified and grouped for DNA extraction and pyrosequencing. Tandem assays of ATP were conducted for each aggregate in order to normalize these small groups of aggregates for biomass size. In spite of there being no significant differences in the richness or diversity of the microbial communities associated with high ?-glucosidase activities compared with the communities associated with low ?-glucosidase communities, several analyses of variance clearly show that the communities of these two groups differ. The separation of these groups is partially driven by the differential abundances of members of the Chitinophagaceae family. It may be that observed functional differences in otherwise similar soil aggregates can be largely attributed to differences in resource availability, rather than to presence or absence of particular taxonomic groups.

  2. Ferrofluid aggregates phase transitions in the planar magnetic field

    E-Print Network [OSTI]

    V. F. Kovalenko; M. V. Petrychuk; B. M. Tanygin; S. I. Shulyma

    2014-04-21T23:59:59.000Z

    The influence of the cyclic heating and cooling on properties of the aggregates (aka "ferrofluid clusters") in a ferrofluid, which made on the basis of magnetite nanoparticles, are investigated. The heating of the ferrofluid layer with such aggregates leads to equalization of the concentration between high- and low-concentrated phases. The temperature of the equalization of the phase concentrations was determined at different values of an external constant magnetic field, which was applied parallel to the layer of the ferrofluid. The temperature of the destruction of a periodic structure of the magnetic aggregates, which were formed during cooling of a homogeneous phase of the ferrofluid, was obtained at the different values of the applied external magnetic field.

  3. Municipal Aggregation and Retail Competition in the Ohio Energy Sector

    E-Print Network [OSTI]

    Littlechild, Stephen C

    communities Actual number of aggregating communities Ratio Actual to Proportionate Average low income electricity bill 2002 First Energy CEI 0.7 31 104 3.35 $77 OE 1.1 49 65 1.33 $67 TE 0.3 13 14 1.08 CGE/Duke 0.7 31 8 0.26 $52... should be drawn? Is municipal aggregation an efficient competitive mechanism, more 4 NOPEC July 2004, cited in Colton (2006) pp. 6,7. 5 NOPEC Year-end Report 2005. 6 Ohio Regulatory Update, Strategic Energy at http...

  4. Aggregate productivity in the United States, 1929-82

    E-Print Network [OSTI]

    Kosko, Linda Ann

    1984-01-01T23:59:59.000Z

    AGGREGATE PRODUCTIVITY IN THE UNITED STATES, 1929-82 A Thesis by LINDA ANN KOSKO submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE August 1984 Major... Subject: Economics AGGREGATE PRODUCTIVITY IN THE UNITED STATES, 1929-82 A Thesis by LINDA ANN KOSKO Approved as to style and content by: Hae-Shin Hwa (Chairman of Comm ttee) Rudo h J. Freund ( mber) David P. Schutte (Member) John R. Moroney...

  5. Aggregation of induction machines for power system dynamic studies

    SciTech Connect (OSTI)

    Taleb, M.; Akbaba, M.; Abdullah, E.A. (Univ. of Bahrain, Isa Town (Bahrain). Electrical Engineering Dept.)

    1994-11-01T23:59:59.000Z

    This paper proposes a method for the aggregation of induction motor loads. Thevenin theorem along with some transient characteristics of induction machine are used in calculating the parameters of the equivalent machine. The dynamic response of the resultant machine differs from the sum of the dynamic responses of the individual machines. For a diversified group of induction machines, at least two separate aggregate machines are needed to represent the overall dynamic performance of the machines. To this end, a handy index for the classification (grouping) of machines is suggested. Comparison between the results obtained from the proposed method and corresponding ones obtained from some of the published methods is also presented.

  6. Two-Factor Model of Soil Suction from Capillarity, Shrinkage, Adsorbed Film, and Intra-aggregate Structure

    E-Print Network [OSTI]

    V. Y. Chertkov

    2014-04-21T23:59:59.000Z

    The objective of this work is to derive the soil water retention from the soil structure without curve-fitting and only using the physical parameters found irrespective of an experimental retention curve. Two key points underlie the work: (i) the soil suction at drying coincides with that of the soil intra-aggregate matrix and contributive clay; and (ii) both the soil suction and volume shrinkage at drying depend on the same soil water content. In addition the two following results are used: (i) the available two-factor (capillarity and shrinkage) model of clay suction enables one to connect a clay suction and clay water content using the clay matrix structure; and (ii) the recent reference shrinkage curve model based on the concepts of intra-aggregate soil structure permits one to connect the soil water content at shrinkage with the water content of the contributive clay. With that the available two-factor model was essentially modified and, in particular, the effect of adsorbed water film was taken into account. The developed model includes the following input parameters: the solid density, relative volume of contributive-clay solids, relative volume of contributive clay in the oven-dried state, soil clay content, aggregate/intra-aggregate mass ratio, and specific volume of lacunar pores in the aggregates at maximum swelling. The validation of the model is based on available data of water retention and the above input parameters for six soils. A promising agreement between the predicted and observed water retention curves was found.

  7. Does convective aggregation need to be represented in cumulus parameterizations?

    E-Print Network [OSTI]

    Does convective aggregation need to be represented in cumulus parameterizations? Isabelle Tobin,1 in phenomena such as ``hot spots'' or the Madden-Julian Oscillation. These findings support the need climate models lack any such representation. The ability of a cloud system- resolving model to reproduce

  8. Phase-locked rhythms in periodically stimulated heart cell aggregates

    E-Print Network [OSTI]

    Glass, Leon

    Phase-locked rhythms in periodically stimulated heart cell aggregates MICHAEL R. GUEVARA, ALVIN GUEVARA,MICHAEL R., ALVIN SHRIER,ANDLEONGLASS. Phase-locked rhythms in periodically stimulated heart cell, THE SINOATRIAL NODE acts as the pace- maker of the heart. As a result of the orderly spread of excitation

  9. Lattice Models of Peptide Aggregation: Evaluation of Conformational Search Algorithms

    E-Print Network [OSTI]

    Aickelin, Uwe

    , University Park, Nottingham NG7 2RD, United Kingdom 2 School of Computer Science and Information Technology represented by a face-centered cubic lattice model with the conformational energies calculated using or by partial unfolding of the protein from its native state. One striking feature of protein aggregation

  10. amyloid beta aggregation: Topics by E-print Network

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

    amyloid beta aggregation First Page Previous Page 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 Computational Insights into...

  11. aggregated amyloid beta: Topics by E-print Network

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

    aggregated amyloid beta First Page Previous Page 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 Computational Insights into...

  12. Effect of Dispersant on Asphaltene Suspension Dynamics: Aggregation and Sedimentation

    E-Print Network [OSTI]

    Firoozabadi, Abbas

    processes, most involving scat- tering, either dynamic light scattering, static light scattering, or neutron on this aggregation behavior through the use of dynamic light scattering, showing that both the amount of dispersant asphaltene suspensions. The light scattering results match well with those obtained through the macroscopic

  13. Quantitative Models for Operational Risk: Extremes, Dependence and Aggregation

    E-Print Network [OSTI]

    Embrechts, Paul

    risk data lend themselves easily to a full quantitative analysis. For example, legal risk defiesQuantitative Models for Operational Risk: Extremes, Dependence and Aggregation V. Chavez, the financial industry is looking for qualitative approaches to and quantitative models for operational risk

  14. BRIEF COMMUNICATIONS A probable spawning aggregation of the leather bass

    E-Print Network [OSTI]

    of herbivores that facilitate leather bass predation on benthic fishes and crustaceans (Montgomery, 1975). Of the 122 reef fish species in Revillagigedo recorded on scuba dives in February 2006, the leather bassBRIEF COMMUNICATIONS A probable spawning aggregation of the leather bass Dermatolepis dermatolepis

  15. Medians and Beyond: New Aggregation Techniques for Sensor Networks

    E-Print Network [OSTI]

    Gao, Jie

    databases, Query processing General Terms Algorithms Keywords Sensor Networks, Aggregation, Approximation Algorithms, Dis tributed Algorithms # The authors were supported by NSF grant IIS0121562 and Army Research Organisation grant DAAD1903D0004 through the In stitute for Collaborative Biotechnologies. Permission

  16. Medians and Beyond: New Aggregation Techniques for Sensor Networks

    E-Print Network [OSTI]

    Chaudhuri, Soma

    databases, Query processing General Terms Algorithms, Performance Keywords Sensor Networks, Aggregation, Approximation Algorithms, Dis- tributed Algorithms The authors were supported by NSF grant IIS-0121562 and Army Research Organisation grant DAAD19-03-D-0004 through the In- stitute for Collaborative Biotechnologies

  17. Intra-Aggregate Mass Transport-Limited Bioavailability of

    E-Print Network [OSTI]

    Rockne, Karl J.

    and high octanol-water partition coef- ficients (1). In aquatic environments PAHs tend to partition Brunswick, New Jersey 08901 Biodegradation kinetics for three- and four-ring PAHs by Mycobacterium sp-aggregate mass transport limitations were compared with abiotic PAH desorption kinetics. The results indicate

  18. The Mathematical Analysis of Biological Aggregation and Dispersal: Progress,

    E-Print Network [OSTI]

    Othmer, Hans

    . coli, to flocks of birds, schools of fish, and herds of ungulates. Aggregation is a broad term, which to an external signal specific terms may be used: swarming in insects, flocking in birds, schooling in fishes organization, such as alignment in fish schools, which undoubtedly involves at least nearest

  19. Aggregate Node Placements in Sensor Networks Weifa Liang

    E-Print Network [OSTI]

    Liang, Weifa

    help prolong the lifetime of a sensor network substantially. Therefore, energy efficient data gatherAggregate Node Placements in Sensor Networks Weifa Liang DCS ANU Canberra, Australia Guanjun Ma DCS into a region of interest to form a sensor network and building a routing tree for data gathering at the same

  20. Slippery diffusion-limited aggregation Clair R. Seager1,

    E-Print Network [OSTI]

    Weeks, Eric R.

    can translationally diffuse over the surface of the other. By contrast, shear-rigid bonding createsSlippery diffusion-limited aggregation Clair R. Seager1, * and Thomas G. Mason2, 1 Department attractions in liquids form irreversible "slippery" bonds that are not shear-rigid. Through event

  1. Minimum Cost Data Aggregation with Localized Processing for Statistical Inference

    E-Print Network [OSTI]

    Anandkumar, Animashree

    Minimum Cost Data Aggregation with Localized Processing for Statistical Inference Animashree--The problem of minimum cost in-network fusion of measurements, collected from distributed sensors via multihop, which implies that any Steiner- tree approximation can be employed for minimum cost fusion with the same

  2. Discrete molecular dynamics simulations of peptide aggregation B. Urbanc,1

    E-Print Network [OSTI]

    Stanley, H. Eugene

    may allow for further aggregation of model peptides to form elongated fibrils. DOI: 10.1103/Phys structural features for these amyloid fibrils: the presence of a 4.74.8 interstrand spacing along of fibril formation, our knowledge of the de- tailed fibrillar structure and mechanisms of amyloid assem

  3. Statistical Analysis of Cellular Aggregates in Immunofluorescence Histology

    E-Print Network [OSTI]

    West, Mike

    specific cell-surface molecules and conjugated to fluorophores. These light-sensitive dyes emit light aggregates in immunofluorescent images. We model the spatial distribution of cells as a heterogeneous point components of post-immunization lymph nodes such as B-cell follicles and germinal centers. 1 Introduction

  4. Hollow hemispherical titanium dioxide aggregates fabricated by coaxial

    E-Print Network [OSTI]

    Cao, Guozhong

    hemispherical titanium dioxide aggregates fabricated by coaxial electrospray for dye-sensitized solar cell nanocrystallites were prepared by a coaxial electrospray method and applied to dye- sensitized solar cells (DSCs-Optical Instrumentation Engineers (SPIE). [DOI: 10.1117/1.JNP.6.063519] Keywords dye-sensitized solar cells; hollow

  5. TIME-DECAYING SKETCHES FOR ROBUST AGGREGATION OF SENSOR DATA

    E-Print Network [OSTI]

    Cormode, Graham

    , AND BOJIAN XU Abstract. We present a new sketch for summarizing network data. The sketch has the follow- ing, such as sensor networks: the sketch is duplicate-insensitive, i.e. re-insertions of the same data will not affect. sensor network, data streams, time decay, asynchrony, data aggregation, duplicates AMS subject

  6. Stability and Aggregation of Metal Oxide Nanoparticles in Natural

    E-Print Network [OSTI]

    Cardinale, Bradley J.

    dispersed three different metal oxide nanoparticles (TiO2, ZnO and CeO2) in samples taken from eight,river,andgroundwater,andmeasuredtheirelectrophoretic mobility, state of aggregation, and rate of sedimentation.g., sunscreens, paints, coatings, catalysts). A simplified con- ceptual model of a typical nanoparticle life

  7. aggregate health care: Topics by E-print Network

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

    aggregate health care First Page Previous Page 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 Health care CiteSeer Summary: n...

  8. AN AGGREGATION-BASED DOMAIN DECOMPOSITION PRECONDITIONER FOR GROUNDWATER FLOW

    E-Print Network [OSTI]

    . Our analysis uses the standard finite element framework from [18,24]. The preconditioner also works well in the context of finite differences, however, as some of the examples in £ 3 illustrateAN AGGREGATION-BASED DOMAIN DECOMPOSITION PRECONDITIONER FOR GROUNDWATER FLOW E. W. JENKINS ¡, C

  9. Probabilistic Data Aggregation In Distributed Anthony D. Joseph

    E-Print Network [OSTI]

    Joseph, Anthony D.

    . Kubiatowicz Electrical Engineering and Computer Sciences University of California at Berkeley Technical Report- tivity of large-scale data aggregation networks to the loss of data. Our approach leverages multi involuntary data loss while minimizing overall impact on accuracy. Further, this technique permits nodes

  10. A Distributed Throttling Approach for Handling High Bandwidth Aggregates

    E-Print Network [OSTI]

    Lui, John C.S.

    bandwidth aggregates that may occur during times of flooding- based DDoS attacks or flash crowds. The often attention are distributed denial-of-service (DDoS) attacks and flash crowds[12]. In a DDoS attack, attackers of the congestion points) from overload. Consider a network server, say , experiencing a DDoS attack. To protect

  11. A Distributed Throttling Approach for Handling High Bandwidth Aggregates

    E-Print Network [OSTI]

    Yau, David K Y

    by high bandwidth aggregates that may occur during times of flooding-based DDoS attacks or flash crowds) are stable under given delay bounds. Index Terms--Resource management, DDoS attacks, network security. 1 attention are distributed denial-of-service (DDoS) attacks and flash crowds [7]. In a DDoS attack, attackers

  12. Investigating the Aggregation of the Basic Leucine Zipper (bZIP) Domain of Activating Transcription Factor 5 (ATF5)

    E-Print Network [OSTI]

    Ciaccio, Natalie Anne

    2010-05-31T23:59:59.000Z

    Protein aggregation is a major problem for biopharmaceuticals. Aggregate formation in a drug formulation can have serious health implications for the patient. While the control of protein aggregation is critically important ...

  13. Commercial Building Tenant Energy Usage Data Aggregation and Privacy: Technical Appendix

    SciTech Connect (OSTI)

    Livingston, Olga V.; Pulsipher, Trenton C.; Anderson, David M.

    2014-11-12T23:59:59.000Z

    This technical appendix accompanies report PNNL23786 Commercial Building Tenant Energy Usage Data Aggregation and Privacy. The objective is to provide background information on the methods utilized in the statistical analysis of the aggregation thresholds.

  14. Efficient Fster energy transfer : from phosphorescent organic molecules to J-aggregate thin film

    E-Print Network [OSTI]

    Shirasaki, Yasuhiro

    2008-01-01T23:59:59.000Z

    This thesis demonstrates the first ever use of Forster resonance energy transfer (FRET) to increase the quantum efficiency of a electrically pumped J-aggregate light emitting device (JLED). J-aggregate thin films are highly ...

  15. The development of correlations between HMA pavement performance and aggregate shape properties

    E-Print Network [OSTI]

    McGahan, Jeremy

    2006-04-12T23:59:59.000Z

    The physical characteristics of aggregates (form, angularity, and texture) are known to affect the performance of hot mix asphalt (HMA) pavements. Efforts to develop relationships between these aggregate characteristics ...

  16. Narrow-Band Absorption-Enhanced Quantum Dot/J-Aggregate Conjugates

    E-Print Network [OSTI]

    Walker, Brian J.

    We report narrow-band absorption enhancement of semiconductor nanocrystals via Frster resonance energy transfer from cyanine J-aggregates. These J-aggregated dyes associate electrostatically with short quantum-dot (QD) ...

  17. Amino-terminal domain stability mediates apolipoprotein E aggregation into neurotoxic fibrils

    E-Print Network [OSTI]

    Hatters, Danny M; Zhong, Ning; Rutenber, Earl; Weisgraber, Karl H

    2006-01-01T23:59:59.000Z

    of self-association of apoE tetramer into aggregates. (a).presence of 100 g/ml apoE4 tetramer incubated at 37 o C forstructure between apoE4 tetramer and aggregate. (a). CD

  18. Regular Article Effects of erythrocyte deformability and aggregation on the cell free layer and

    E-Print Network [OSTI]

    Popel, Aleksander S.

    , and sickle cell anemia (Popel and Johnson, 2005).The underlying mechanism of RBC aggregation is still under

  19. Investigation of the bond and tensile capacity of synthetic lightweight aggregates embedded in a cement matrix

    E-Print Network [OSTI]

    Nichols, Gisela Wagner

    1969-01-01T23:59:59.000Z

    aggregates. A disoussion of the design and oonstruotion of the equipmsnt of the testing method is presented~ iv ABSTRACT CONTINUED Eight batohes of differently shaped pieces of seven types of lightweight aggregates were tested and are evaluated.... . Almost all of the aggregate pieces failed in tension. The approximate tensile strengths are caloulated and compared to the dry unit weights and bulk specific gravities of the various aggregates. Three conolusions are presented and six recommendations...

  20. MHK technologies include current energy conversion

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

    research leverages decades of experience in engineering and design and analysis (D&A) of wind power technologies, and its vast research complex, including high-performance...

  1. Lifting Rationality Assumptions in Binary Aggregation Umberto Grandi and Ulle Endriss

    E-Print Network [OSTI]

    Endriss, Ulle

    Lifting Rationality Assumptions in Binary Aggregation Umberto Grandi and Ulle Endriss Institute aggregation procedure will lift the rationality assumptions from the in- dividual to the collective level, i an axiomatic characterisation of the class of aggregation proce- dures that will lift all rationality

  2. SelectCast: Scalable Data Aggregation Scheme in Wireless Sensor Networks

    E-Print Network [OSTI]

    Li, Xiang-Yang

    Aggregation, Percolation theory, aggregation capacity. I. INTRODUCTION Data aggregation is a key energy environment. In our protocol, for the neighborhood of every node, we will approximately select portion-coverage, connectivity, etc the node density (number of nodes per unit area) can be treated as a varible within a large

  3. Preferential Solvent Partitioning within Asphaltenic Aggregates Dissolved in Binary Solvent Mixtures

    E-Print Network [OSTI]

    Kilpatrick, Peter K.

    Preferential Solvent Partitioning within Asphaltenic Aggregates Dissolved in Binary SolventVised Manuscript ReceiVed December 9, 2006 The heaviest fraction of crude oils, asphaltenes, has been shown to play-assembled interfacially active asphaltenic aggregates. Thus, careful characterization of these aggregates is of great

  4. EE Regional Technology Roadmap Includes comparison

    E-Print Network [OSTI]

    EE Regional Technology Roadmap Includes comparison against 6th Power Plan (Update cyclically Data Clearinghouse BPA/RTF NEEA/Regional Programs Group Update Regional EE Technology Roadmap Lighting

  5. DIDACTICAL HOLOGRAPHIC EXHIBIT INCLUDING (HOLOGRAPHIC TELEVISION)

    E-Print Network [OSTI]

    de Aguiar, Marcus A. M.

    DIDACTICAL HOLOGRAPHIC EXHIBIT INCLUDING HoloTV (HOLOGRAPHIC TELEVISION) José J. Lunazzi , DanielCampinasSPBrasil Abstract: Our Institute of Physics exposes since 1980 didactical exhibitions of holography in Brazil where

  6. Sessions include: Beginning Farmer and Rancher

    E-Print Network [OSTI]

    Watson, Craig A.

    Sessions include: Beginning Farmer and Rancher New Markets and Regulations Food Safety Good Bug, Bad Bug ID Horticulture Hydroponics Livestock and Pastured Poultry Mushrooms Organic Live animal exhibits Saturday evening social, and Local foods Florida Small Farms and Alternative

  7. Gas storage materials, including hydrogen storage materials

    DOE Patents [OSTI]

    Mohtadi, Rana F; Wicks, George G; Heung, Leung K; Nakamura, Kenji

    2014-11-25T23:59:59.000Z

    A material for the storage and release of gases comprises a plurality of hollow elements, each hollow element comprising a porous wall enclosing an interior cavity, the interior cavity including structures of a solid-state storage material. In particular examples, the storage material is a hydrogen storage material, such as a solid state hydride. An improved method for forming such materials includes the solution diffusion of a storage material solution through a porous wall of a hollow element into an interior cavity.

  8. Gas storage materials, including hydrogen storage materials

    DOE Patents [OSTI]

    Mohtadi, Rana F; Wicks, George G; Heung, Leung K; Nakamura, Kenji

    2013-02-19T23:59:59.000Z

    A material for the storage and release of gases comprises a plurality of hollow elements, each hollow element comprising a porous wall enclosing an interior cavity, the interior cavity including structures of a solid-state storage material. In particular examples, the storage material is a hydrogen storage material such as a solid state hydride. An improved method for forming such materials includes the solution diffusion of a storage material solution through a porous wall of a hollow element into an interior cavity.

  9. Hastings-Levitov aggregation in the small-particle limit

    E-Print Network [OSTI]

    James Norris; Amanda Turner

    2011-11-02T23:59:59.000Z

    We establish some scaling limits for a model of planar aggregation. The model is described by the composition of a sequence of independent and identically distributed random conformal maps, each corresponding to the addition of one particle. We study the limit of small particle size and rapid aggregation. The process of growing clusters converges, in the sense of Caratheodory, to an inflating disc. A more refined analysis reveals, within the cluster, a tree structure of branching fingers, whose radial component increases deterministically with time. The arguments of any finite sample of fingers, tracked inwards, perform coalescing Brownian motions. The arguments of any finite sample of gaps between the fingers, tracked outwards, also perform coalescing Brownian motions. These properties are closely related to the evolution of harmonic measure on the boundary of the cluster, which is shown to converge to the Brownian web.

  10. Sticky Bacteria: Adhesion-Detachment Based Microbial Aggregation Dynamics

    E-Print Network [OSTI]

    Sircar, Sarthok

    2013-01-01T23:59:59.000Z

    We present a mechanistic model for the adherence of two spherical flocs in quiescent flow conditions. Adhesion forces arise via the binding ligands as well as the attractive/repulsive surface potential in an ionic medium via the DLVO theory. The reversible binding kinetics are assumed to follow the standard model for linear springs \\cite{Dembo1988}. The collision factor and the floc aggregate number density is studied as a function of various surface/fluid parameters. It is seen that large floc aggregates are possible with more tensile ligands due to efficient inter-floc collisions (measured via the collision factor). Our results quantify how fluid drag and strong electrolytic composition of the surrounding fluid favor floc formation as well.

  11. Model for Aggregated Water Heater Load Using Dynamic Bayesian Networks

    SciTech Connect (OSTI)

    Vlachopoulou, Maria; Chin, George; Fuller, Jason C.; Lu, Shuai; Kalsi, Karanjit

    2012-07-19T23:59:59.000Z

    The transition to the new generation power grid, or smart grid, requires novel ways of using and analyzing data collected from the grid infrastructure. Fundamental functionalities like demand response (DR), that the smart grid needs, rely heavily on the ability of the energy providers and distributors to forecast the load behavior of appliances under different DR strategies. This paper presents a new model of aggregated water heater load, based on dynamic Bayesian networks (DBNs). The model has been validated against simulated data from an open source distribution simulation software (GridLAB-D). The results presented in this paper demonstrate that the DBN model accurately tracks the load profile curves of aggregated water heaters under different testing scenarios.

  12. On the fractal morphology of combustion-generated soot aggregates

    SciTech Connect (OSTI)

    Koylu, U.O. [Yale Univ., New Haven, CT (United States)

    1995-12-31T23:59:59.000Z

    The fractal properties of soot aggregates were investigated using ex-situ and in-situ experimental methods as well as computer simulations. Ex-situ experiments involved thermophoretic sampling and analysis by transmission electron microscopy (TEM), while in-situ measurements employed angular static light scattering and data inversion based on Rayleigh-Debye-Gans (RDG) approximation. Computer simulations used a sequential algorithm which mimics mass fractal-like structures. So from a variety of hydrocarbon-fueled laminar and turbulent nonpremixed flame environments were considered in the present study. The TEM analysis of projected soot images sampled from fuel-rich conditions of buoyant and weakly-buoyant laminar flames indicated that the fractal dimension of soot was relatively independent of position in flames, fuel type and flame condition. These measurements yielded an average fractal dimension of 1.8, although other structure parameters such as the primary particle diameters and number of primary particles in aggregates had wide range of values. Fractal prefactor (lacunarity) was also measured for soot sampled from the fuel-lean conditions of turbulent flames, considering the actual morphology by tilting the samples during TEM analysis. These measurements yielded a fractal dimension of 1.65 and a lacunarity of 8.5, with experimental uncertainties (95% confidence) of 0.08 and 0.5, respectively. Relationships between the actual and projected structure properties of soot were also developed by combining TEM observations with numerical simulations. Practical approximate formulae were suggested to find radius of gyration of an aggregate from its maximum dimension, and number of primary particles in an aggregate from projected area. Finally, the fractal dimension and lacunarity of soot were obtained using light scattering for the same conditions of the above TEM measurements.

  13. Effect of Aggregation on Thermal Conduction in Colloidal Nanofluids

    SciTech Connect (OSTI)

    R Prasher; W Evans; J Fish; P Meakin; P Phelan; Pawel Keblinski

    2006-08-10T23:59:59.000Z

    Using effective medium theory we demonstrate that the thermal conductivity of nanofluids can be significantly enhanced by the aggregation of nanoparticles into clusters. The enhancement is based purely on conduction and does not require a novel mechanism. Predictions of the effective medium theory are in excellent agreement with detailed numerical calculations on model nanofluids involving fractal clusters and show the importance of cluster morphology on thermal conductivity enhancements.

  14. Investigation for determining the curing characteristics of lightweight aggregate concrete

    E-Print Network [OSTI]

    Carlton, Thomas Arlis

    1955-01-01T23:59:59.000Z

    desired gradatiani This burning produces an inert ~ highly porous material that will no longer soften in water gntil after World Mar II ~ the principal use of lightweight aggre- gates was in the manufacture of lightweight aoncrete building bloaks... or not the method of curing is of equal, lesser, or greater inportance for concrete made with lightweight aggregates ~ The prime need for curing concrete is to prevent the loss of water neoessary ta complete the hydratfen process in the os?cent The general...

  15. Dye-sensitized solar cell employing zinc oxide aggregates grown in the presence of lithium

    DOE Patents [OSTI]

    Zhang, Qifeng; Cao, Guozhong

    2013-10-15T23:59:59.000Z

    Provided are a novel ZnO dye-sensitized solar cell and method of fabricating the same. In one embodiment, deliberately added lithium ions are used to mediate the growth of ZnO aggregates. The use of lithium provides ZnO aggregates that have advantageous microstructure, morphology, crystallinity, and operational characteristics. Employing lithium during aggregate synthesis results in a polydisperse collection of ZnO aggregates favorable for porosity and light scattering. The resulting nanocrystallites forming the aggregates have improved crystallinity and more favorable facets for dye molecule absorption. The lithium synthesis improves the surface stability of ZnO in acidic dyes. The procedures developed and disclosed herein also help ensure the formation of an aggregate film that has a high homogeneity of thickness, a high packing density, a high specific surface area, and good electrical contact between the film and the fluorine-doped tin oxide electrode and among the aggregate particles.

  16. Electric Power Monthly, August 1990. [Glossary included

    SciTech Connect (OSTI)

    Not Available

    1990-11-29T23:59:59.000Z

    The Electric Power Monthly (EPM) presents monthly summaries of electric utility statistics at the national, Census division, and State level. The purpose of this publication is to provide energy decisionmakers with accurate and timely information that may be used in forming various perspectives on electric issues that lie ahead. Data includes generation by energy source (coal, oil, gas, hydroelectric, and nuclear); generation by region; consumption of fossil fuels for power generation; sales of electric power, cost data; and unusual occurrences. A glossary is included.

  17. Communication in automation, including networking and wireless

    E-Print Network [OSTI]

    Antsaklis, Panos

    Communication in automation, including networking and wireless Nicholas Kottenstette and Panos J and networking in automation is given. Digital communication fundamentals are reviewed and networked control are presented. 1 Introduction 1.1 Why communication is necessary in automated systems Automated systems use

  18. Electrochemical cell including ribbed electrode substrates

    SciTech Connect (OSTI)

    Breault, R.D.; Goller, G.J.; Roethlein, R.J.; Sprecher, G.C.

    1981-07-21T23:59:59.000Z

    An electrochemical cell including an electrolyte retaining matrix layer located between and in contact with cooperating anode and cathode electrodes is disclosed herein. Each of the electrodes is comprised of a ribbed (or grooved) substrate including a gas porous body as its main component and a catalyst layer located between the substrate and one side of the electrolyte retaining matrix layer. Each substrate body includes a ribbed section for receiving reactant gas and lengthwise side portions on opposite sides of the ribbed section. Each of the side portions includes a channel extending along its entire length from one surface thereof (e.g., its outer surface) to but stopping short of an opposite surface (e.g., its inner surface) so as to provide a web directly between the channel and the opposite surface. Each of the channels is filled with a gas impervious substance and each of the webs is impregnated with a gas impervious substance so as to provide a gas impervious seal along the entire length of each side portion of each substrate and between the opposite faces thereof (e.g., across the entire thickness thereof).

  19. Prices include compostable serviceware and linen tablecloths

    E-Print Network [OSTI]

    California at Davis, University of

    & BLACK BEAN ENCHILADAS Fresh corn tortillas stuffed with tender brown butter sauted butternut squash, black beans and yellow on- ions, garnished with avocado and sour cream. $33 per person EDAMAME & CORN SQUASH & BLACK BEAN ENCHILADA FREE RANGE CHICK- EN SANDWICH PLATED ENTREES All plated entrees include

  20. Energy Consumption of Personal Computing Including Portable

    E-Print Network [OSTI]

    Namboodiri, Vinod

    Energy Consumption of Personal Computing Including Portable Communication Devices Pavel Somavat1 consumption, questions are being asked about the energy contribution of computing equipment. Al- though studies have documented the share of energy consumption by this type of equipment over the years, research

  1. Energy-Efficient Data Aggregation Hierarchy for Wireless Sensor Networks Yuanzhu Peter Chen Arthur L. Liestman Jiangchuan Liu

    E-Print Network [OSTI]

    Chen, Yuanzhu Peter

    Energy-Efficient Data Aggregation Hierarchy for Wireless Sensor Networks Yuanzhu Peter Chen Arthur study single-level aggregation and propose an Energy-Efficient Protocol for Aggregator Selec- tion (EPAS). Then, we generalize it to an aggregation hier- archy and extend EPAS to a Hierarchical Energy-Efficient

  2. Modeling and Control of Aggregated Air Conditioning Loads Under Realistic Conditions

    SciTech Connect (OSTI)

    Chang, Chin-Yao; Zhang, Wei; Lian, Jianming; Kalsi, Karanjit

    2013-02-24T23:59:59.000Z

    Demand-side control is playing an increasingly important role in smart grid control strategies. Modeling the dynamical behavior of a large population of appliances is especially important to evaluate the effectiveness of various load control strategies. In this paper, a high accuracy aggregated model is first developed for a population of HVAC units. The model efficiently includes statistical information of the population, systematically deals with heterogeneity, and accounts for a second-order effect necessary to accurately capture the transient dynamics in the collective response. Furthermore, the model takes into account the lockout effect of the compressor in order to represent the dynamics of the system under control more accurately. Then, a novel closed loop load control strategy is designed to track a desired demand curve and to ensure a stable and smooth response.

  3. Subterranean barriers including at least one weld

    DOE Patents [OSTI]

    Nickelson, Reva A.; Sloan, Paul A.; Richardson, John G.; Walsh, Stephanie; Kostelnik, Kevin M.

    2007-01-09T23:59:59.000Z

    A subterranean barrier and method for forming same are disclosed, the barrier including a plurality of casing strings wherein at least one casing string of the plurality of casing strings may be affixed to at least another adjacent casing string of the plurality of casing strings through at least one weld, at least one adhesive joint, or both. A method and system for nondestructively inspecting a subterranean barrier is disclosed. For instance, a radiographic signal may be emitted from within a casing string toward an adjacent casing string and the radiographic signal may be detected from within the adjacent casing string. A method of repairing a barrier including removing at least a portion of a casing string and welding a repair element within the casing string is disclosed. A method of selectively heating at least one casing string forming at least a portion of a subterranean barrier is disclosed.

  4. Power generation method including membrane separation

    DOE Patents [OSTI]

    Lokhandwala, Kaaeid A. (Union City, CA)

    2000-01-01T23:59:59.000Z

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

  5. Rotor assembly including superconducting magnetic coil

    DOE Patents [OSTI]

    Snitchler, Gregory L. (Shrewsbury, MA); Gamble, Bruce B. (Wellesley, MA); Voccio, John P. (Somerville, MA)

    2003-01-01T23:59:59.000Z

    Superconducting coils and methods of manufacture include a superconductor tape wound concentrically about and disposed along an axis of the coil to define an opening having a dimension which gradually decreases, in the direction along the axis, from a first end to a second end of the coil. Each turn of the superconductor tape has a broad surface maintained substantially parallel to the axis of the coil.

  6. Electric power monthly, September 1990. [Glossary included

    SciTech Connect (OSTI)

    Not Available

    1990-12-17T23:59:59.000Z

    The purpose of this report is to provide energy decision makers with accurate and timely information that may be used in forming various perspectives on electric issues. The power plants considered include coal, petroleum, natural gas, hydroelectric, and nuclear power plants. Data are presented for power generation, fuel consumption, fuel receipts and cost, sales of electricity, and unusual occurrences at power plants. Data are compared at the national, Census division, and state levels. 4 figs., 52 tabs. (CK)

  7. Multiverse rate equation including bubble collisions

    E-Print Network [OSTI]

    Michael P. Salem

    2013-02-19T23:59:59.000Z

    The volume fractions of vacua in an eternally inflating multiverse are described by a coarse-grain rate equation, which accounts for volume expansion and vacuum transitions via bubble formation. We generalize the rate equation to account for bubble collisions, including the possibility of classical transitions. Classical transitions can modify the details of the hierarchical structure among the volume fractions, with potential implications for the staggering and Boltzmann-brain issues. Whether or not our vacuum is likely to have been established by a classical transition depends on the detailed relationships among transition rates in the landscape.

  8. Beam-induced graphitic carbon cage transformation from sumanene aggregates

    SciTech Connect (OSTI)

    Fujita, Jun-ichi, E-mail: fujita@bk.tsukuba.ac.jp; Tachi, Masashi; Murakami, Katsuhisa [Institute of Applied Physics, University of Tsukuba, Tsukuba 305-8573 (Japan); Tsukuba Research Center for Interdisciplinary Materials Science (TIMS), Tsukuba 305-8573 (Japan); Sakurai, Hidehiro; Morita, Yuki; Higashibayashi, Shuhei [Research Center of Integrative Molecular Systems, Institute for Molecular Science, Myodaiji, Okazaki 444-8787 (Japan); Takeguchi, Masaki [Transmission Electron Microscopy Station, National Institute for Materials Science, Tsukuba 305-0047 (Japan)

    2014-01-27T23:59:59.000Z

    We found that electron-beam irradiation of sumanene aggregates strongly enhanced their transformation into a graphitic carbon cage, having a diameter of about 20?nm. The threshold electron dose was about 32 mC/cm{sup 2} at 200?keV, but the transformation is still induced at 20?keV. The transformation sequence suggested that the cage was constructed accompanied by the dynamical movement of the transiently linked sumanene molecules in order to pile up inside the shell. Thus, bond excitation in the sumanene molecules rather than a knock-on of carbon atoms seems to be the main cause of the cage transformation.

  9. Extraction of pores from microtomographic reconstructions of intact soil aggregates

    SciTech Connect (OSTI)

    Albee, P. B.; Stockman, G. C.; Smucker, A. J. M.

    2000-02-29T23:59:59.000Z

    Segmentation of features is often a necessary step in the analysis of volumetric data. The authors have developed a simple technique for extracting voids from irregular volumetric data sets. In this work they look at extracting pores from soil aggregates. First, they identify a threshold that gives good separability of the object from the background. They then segment the object, and perform connected components analysis on the pores within the object. Using their technique pores that break the surface can be segmented along with pores completely contained in the initially segmented object.

  10. Data Aggregation Strategies for Evaluation and Reporting | Department of

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't Your Destiny:Revised Finding of No53197 This work was performedEnergy Data Aggregation

  11. THE REBOUND CONDITION OF DUST AGGREGATES REVEALED BY NUMERICAL SIMULATION OF THEIR COLLISIONS

    SciTech Connect (OSTI)

    Wada, Koji [Planetary Exploration Research Center, Chiba Institute of Technology, 2-17-1 Tsudanuma, Narashino, Chiba 275-0016 (Japan); Tanaka, Hidekazu; Yamamoto, Tetsuo [Institute of Low Temperature Science, Hokkaido University, Sapporo 060-0819 (Japan); Suyama, Toru [Nagano City Museum, Hachimanpara Historic Park, Oshimada, Nagano 381-2212 (Japan); Kimura, Hiroshi, E-mail: wada@perc.it-chiba.ac.jp [Center for Planetary Science (CPS), Chuo-ku Minatojima Minamimachi 7-1-48, Kobe 650-0047 (Japan)

    2011-08-10T23:59:59.000Z

    Collisional growth of dust aggregates is a plausible root of planetesimals forming in protoplanetary disks. However, a rebound of colliding dust aggregates prevents dust from growing into planetesimals. In fact, rebounding aggregates are observed in laboratory experiments but not in previous numerical simulations. Therefore, the condition of rebound between dust aggregates should be clarified to better understand the processes of dust growth and planetesimal formation. We have carried out numerical simulations of aggregate collisions for various types of aggregates and succeeded in reproducing a rebound of colliding aggregates under specific conditions. Our finding is that in the rebound process, the key factor of the aggregate structure is the coordination number, namely, the number of particles in contact with a particle. A rebound is governed by the energy dissipation along with restructuring of the aggregates and a large coordination number inhibits the restructuring at collisions. Results of our numerical simulation for various aggregates indicate that they stick to each other when the mean coordination number is less than 6, regardless of their materials and structures, as long as their collision velocity is less than the critical velocity for fragmentation. This criterion of the coordination number would correspond to a filling factor of {approx}0.3, which is somewhat larger than that reported in laboratory experiments. In protoplanetary disks, dust aggregates are expected to have low bulk densities (<0.1 g cm{sup -3}) during their growth, which would prevent dust aggregates from rebounding. This result supports the formation of planetesimals with direct dust growth in protoplanetary disks.

  12. Optical panel system including stackable waveguides

    DOE Patents [OSTI]

    DeSanto, Leonard (Dunkirk, MD); Veligdan, James T. (Manorville, NY)

    2007-11-20T23:59:59.000Z

    An optical panel system including stackable waveguides is provided. The optical panel system displays a projected light image and comprises a plurality of planar optical waveguides in a stacked state. The optical panel system further comprises a support system that aligns and supports the waveguides in the stacked state. In one embodiment, the support system comprises at least one rod, wherein each waveguide contains at least one hole, and wherein each rod is positioned through a corresponding hole in each waveguide. In another embodiment, the support system comprises at least two opposing edge structures having the waveguides positioned therebetween, wherein each opposing edge structure contains a mating surface, wherein opposite edges of each waveguide contain mating surfaces which are complementary to the mating surfaces of the opposing edge structures, and wherein each mating surface of the opposing edge structures engages a corresponding complementary mating surface of the opposite edges of each waveguide.

  13. Optical panel system including stackable waveguides

    DOE Patents [OSTI]

    DeSanto, Leonard; Veligdan, James T.

    2007-03-06T23:59:59.000Z

    An optical panel system including stackable waveguides is provided. The optical panel system displays a projected light image and comprises a plurality of planar optical waveguides in a stacked state. The optical panel system further comprises a support system that aligns and supports the waveguides in the stacked state. In one embodiment, the support system comprises at least one rod, wherein each waveguide contains at least one hole, and wherein each rod is positioned through a corresponding hole in each waveguide. In another embodiment, the support system comprises at least two opposing edge structures having the waveguides positioned therebetween, wherein each opposing edge structure contains a mating surface, wherein opposite edges of each waveguide contain mating surfaces which are complementary to the mating surfaces of the opposing edge structures, and wherein each mating surface of the opposing edge structures engages a corresponding complementary mating surface of the opposite edges of each waveguide.

  14. Thermovoltaic semiconductor device including a plasma filter

    DOE Patents [OSTI]

    Baldasaro, Paul F. (Clifton Park, NY)

    1999-01-01T23:59:59.000Z

    A thermovoltaic energy conversion device and related method for converting thermal energy into an electrical potential. An interference filter is provided on a semiconductor thermovoltaic cell to pre-filter black body radiation. The semiconductor thermovoltaic cell includes a P/N junction supported on a substrate which converts incident thermal energy below the semiconductor junction band gap into electrical potential. The semiconductor substrate is doped to provide a plasma filter which reflects back energy having a wavelength which is above the band gap and which is ineffectively filtered by the interference filter, through the P/N junction to the source of radiation thereby avoiding parasitic absorption of the unusable portion of the thermal radiation energy.

  15. E-Print Network 3.0 - aggregation prone regions Sample Search...

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

    Massachusetts Institute of Technology (MIT) Collection: Biology and Medicine 7 Protein folding in the cell: reshaping the folding funnel Summary: , as a second aggregation'...

  16. SIZE AND SURFACE AREA OF ICY DUST AGGREGATES AFTER A HEATING EVENT AT A PROTOPLANETARY NEBULA

    SciTech Connect (OSTI)

    Sirono, Sin-iti [Earth and Environmental Sciences, Graduate School of Environmental Studies, Nagoya University, Nagoya 464-8601 (Japan)] [Earth and Environmental Sciences, Graduate School of Environmental Studies, Nagoya University, Nagoya 464-8601 (Japan)

    2013-03-01T23:59:59.000Z

    The activity of a young star rises abruptly during an FU Orionis outburst. This event causes a temporary temperature increase in the protoplanetary nebula. H{sub 2}O icy grains are sublimated by this event, and silicate cores embedded inside the ice are ejected. During the high-temperature phase, the silicate grains coagulate to form silicate core aggregates. After the heating event, the temperature drops, and the ice recondenses onto the aggregates. I determined numerically the size distribution of the ice-covered aggregates. The size of the aggregates exceeds 10 {mu}m around the snow line. Because of the migration of the ice to large aggregates, only a small fraction of the silicate core aggregate is covered with H{sub 2}O ice. After the heating event, the surface of an ice-covered aggregate is totally covered by silicate core aggregates. This might reduce the fragmentation velocity of aggregates when they collide. It is possible that the covering silicate cores shield the UV radiation field which induces photodissociation of H{sub 2}O ice. This effect may cause the shortage of cold H{sub 2}O vapor observed by Herschel.

  17. A new mineralogical approach to predict coefficient of thermal expansion of aggregate and concrete

    E-Print Network [OSTI]

    Neekhra, Siddharth

    2005-02-17T23:59:59.000Z

    constituent mineral phase are considered as input for the aggregate CoTE model, whereas the same properties for coarse aggregate and mortar are considered for the concrete CoTE model. Methods have been formulated to calculate the mineral volume percentage... on the determined CoTE of pure minerals and their respective calculated volume percentages, shows a good resemblance with the measured aggregate CoTE by dilatometer. Similarly, predicted concrete CoTE, based on the calculated CoTE of aggregate and mortar...

  18. Energy landscapes for protein folding, binding, and aggregation : simple funnels and beyond

    E-Print Network [OSTI]

    Cho, Samuel Sung-Il

    2007-01-01T23:59:59.000Z

    coordinates capture protein folding on smooth landscapes.in the Prediction of Protein Folding Kinetics. Proc. Natl.Landscapes for Protein Folding, Binding, and Aggregation:

  19. Fireproof impact limiter aggregate packaging inside shipping containers

    DOE Patents [OSTI]

    Byington, Gerald A. (Knoxville, TN); Oakes, Jr., Raymon Edgar (Kingston, TN); Feldman, Matthew Rookes (Knoxville, TN)

    2001-01-01T23:59:59.000Z

    The invention is a product and a process for making a fireproof, impact limiter, homogeneous aggregate material for casting inside a hazardous material shipping container, or a double-contained Type-B nuclear shipping container. The homogeneous aggregate material is prepared by mixing inorganic compounds with water, pouring the mixture into the void spaces between an inner storage containment vessel and an outer shipping container, vibrating the mixture inside the shipping container, with subsequent curing, baking, and cooling of the mixture to form a solidified material which encapsulates an inner storage containment vessel inside an outer shipping container. The solidified material forms a protective enclosure around an inner storage containment vessel which may store hazardous, toxic, or radioactive material. The solidified material forms a homogeneous fire-resistant material that does not readily transfer heat, and provides general shock and specific point-impact protection, providing protection to the interior storage containment vessel. The material is low cost, may contain neutron absorbing compounds, and is easily formed into a variety of shapes to fill the interior void spaces of shipping containers.

  20. Mine-to-Mill Optimization of Aggregate Production

    SciTech Connect (OSTI)

    Greg Adel; Toni Kojovic; Darren Thornton

    2006-09-30T23:59:59.000Z

    Mine-to-Mill optimization is a total systems approach to the reduction of energy and cost in mining and processing. Developed at the Julius Krutschnitt Mineral Research Center in Queensland, Australia, the Mine-to-Mill approach attempts to minimize energy consumption through optimization of all steps in the size reduction process. The approach involves sampling and modeling of blasting and processing, followed by computer simulation to optimize the operation and develop alternatives. The most promising alternatives are implemented, and sampling is conducted to quantify benefits. In the current project, the primary objective was to adapt Mine-to-Mill technology to the aggregates industry. The first phase of this work was carried out at the Bealeton Quarry near Fredericksburg, Virginia. The second phase was carried out at the Pittsboro Quarry south of Chapel Hill, North Carolina. Both quarries are operated by Luck Stone Corporation of Richmond, Virginia. As a result of the work, several conclusions can be drawn from the project which should assist DOE in assessing the applicability of the Mine-to-Mill approach to the aggregates industry. 1. Implementation of MTM guidelines at Pittsboro has resulted in tangible improvements in productivity. It is clear that MTM guidelines represent an energy savings of around 5% (primary and secondary) and an overall energy savings of 1%. This 1-5% energy savings is also consistent with simulated results for Bealeton had side-by-side shots used to evaluate the technology been carried out in the same rockmass. 2. Luck Stone clearly runs their operations at a high standard. Hence the percentage improvement realized in this project may represent the lower end of what might be expected overall in the aggregates industry. 3. Variability in ore types across both Bealeton and Pittsboro suggests a 2:1 difference in hardness which contradicts the misconception that quarry rock is homogenous. Therefore, the idea of comparing side-by-side blasts is not viable and long term comparisons stand the best chance of confirming the benefits of optimized blasting. 4. There are clear limitations on how much improvement can be made in the aggregate industry due to the fixed feed size that reports to the tertiary section of a typical aggregate plant. These limitations restrict the MTM approach from exercising significant increases in blasting which would only serve to increase fines and reduce product yield. 5. The key to success at Pittsboro was the development of MTM guidelines for the modified blasting practice in consultation with the drill & blast crew. Their full buy-in was necessary to implement optimized blasting in a sustained manner. 6. The JKSimBlast and JKSimMet models have proven to be effective tools for examining blasting and processing at Bealeton and Pittsboro. These models should enable Luck Stone to transfer the MTM approach to other sites.

  1. Secure Hop-by-Hop Aggregation of End-to-End Concealed Data in Wireless Sensor Networks

    E-Print Network [OSTI]

    Mlaih, Esam

    2008-01-01T23:59:59.000Z

    In-network data aggregation is an essential technique in mission critical wireless sensor networks (WSNs) for achieving effective transmission and hence better power conservation. Common security protocols for aggregated WSNs are either hop-by-hop or end-to-end, each of which has its own encryption schemes considering different security primitives. End-to-end encrypted data aggregation protocols introduce maximum data secrecy with in-efficient data aggregation and more vulnerability to active attacks, while hop-by-hop data aggregation protocols introduce maximum data integrity with efficient data aggregation and more vulnerability to passive attacks. In this paper, we propose a secure aggregation protocol for aggregated WSNs deployed in hostile environments in which dual attack modes are present. Our proposed protocol is a blend of flexible data aggregation as in hop-by-hop protocols and optimal data confidentiality as in end-to-end protocols. Our protocol introduces an efficient $O(1)$ heuristic for checking...

  2. Engine lubrication circuit including two pumps

    DOE Patents [OSTI]

    Lane, William H.

    2006-10-03T23:59:59.000Z

    A lubrication pump coupled to the engine is sized such that the it can supply the engine with a predetermined flow volume as soon as the engine reaches a peak torque engine speed. In engines that operate predominately at speeds above the peak torque engine speed, the lubrication pump is often producing lubrication fluid in excess of the predetermined flow volume that is bypassed back to a lubrication fluid source. This arguably results in wasted power. In order to more efficiently lubricate an engine, a lubrication circuit includes a lubrication pump and a variable delivery pump. The lubrication pump is operably coupled to the engine, and the variable delivery pump is in communication with a pump output controller that is operable to vary a lubrication fluid output from the variable delivery pump as a function of at least one of engine speed and lubrication flow volume or system pressure. Thus, the lubrication pump can be sized to produce the predetermined flow volume at a speed range at which the engine predominately operates while the variable delivery pump can supplement lubrication fluid delivery from the lubrication pump at engine speeds below the predominant engine speed range.

  3. Models of Procyon A including seismic constraints

    E-Print Network [OSTI]

    P. Eggenberger; F. Carrier; F. Bouchy

    2005-01-14T23:59:59.000Z

    Detailed models of Procyon A based on new asteroseismic measurements by Eggenberger et al (2004) have been computed using the Geneva evolution code including shellular rotation and atomic diffusion. By combining all non-asteroseismic observables now available for Procyon A with these seismological data, we find that the observed mean large spacing of 55.5 +- 0.5 uHz favours a mass of 1.497 M_sol for Procyon A. We also determine the following global parameters of Procyon A: an age of t=1.72 +- 0.30 Gyr, an initial helium mass fraction Y_i=0.290 +- 0.010, a nearly solar initial metallicity (Z/X)_i=0.0234 +- 0.0015 and a mixing-length parameter alpha=1.75 +- 0.40. Moreover, we show that the effects of rotation on the inner structure of the star may be revealed by asteroseismic observations if frequencies can be determined with a high precision. Existing seismological data of Procyon A are unfortunately not accurate enough to really test these differences in the input physics of our models.

  4. COMMERCIAL DEMONSTRATION OF THE MANUFACTURED AGGREGATE PROCESSING TECHNOLOGY UTILIZING SPRAY DRYER ASH

    SciTech Connect (OSTI)

    Roy Scandrol

    2003-10-01T23:59:59.000Z

    Universal Aggregates, LLC proposes to design, construct and operate a lightweight aggregate manufacturing plant at the Birchwood Power Facility in King George, Virginia. The installation and start-up expenses for the Birchwood Aggregate Facility are $19.5 million. The DOE share is $7.2 million (37%) and the Universal Aggregates share is $12.3 (63%). The project team consists of CONSOL Energy Inc., P.J. Dick, Inc., SynAggs, LLC, and Universal Aggregates, LLC. The Birchwood Facility will transform 115,000 tons per year of spray dryer by-products that are currently being disposed of in an offsite landfill into 167,000 tons of a useful product, lightweight aggregates that can be used to manufacture lightweight aggregates that can be used to manufacture lightweight and medium weight masonry blocks. In addition to the environmental benefits, the Birchwood Facility will create nine (9) manufacturing jobs plus additional employment in the local trucking industry to deliver the aggregate to customers or reagents to the facility. A successful demonstration would lead to additional lightweight aggregate manufacturing facilities in the United States. There are currently twenty-one (21) spray dryer facilities operating in the United States that produce an adequate amount of spray dryer by-product to economically justify the installation of a lightweight aggregate manufacturing facility. Industry sources believe that as additional scrubbing is required, dry FGD technologies will be the technology of choice. Letters from potential lightweight aggregate customers indicate that there is a market for the product once the commercialization barriers are eliminated by this demonstration project.

  5. COMMERCIAL DEMONSTRATION OF THE MANUFACTURED AGGREGATE PROCESSING TECHNOLOGY UTILIZING SPRAY DRYER ASH

    SciTech Connect (OSTI)

    Roy Scandrol

    2003-04-01T23:59:59.000Z

    Universal Aggregates, LLC proposes to design, construct and operate a lightweight aggregate manufacturing plant at the Birchwood Power Facility in King George, Virginia. The installation and start-up expenses for the Birchwood Aggregate Facility are $19.5 million. The DOE share is $7.2 million (37%) and the Universal Aggregates share is $12.3 (63%). The project team consists of CONSOL Energy Inc., P.J. Dick, Inc., SynAggs, LLC, and Universal Aggregates, LLC. The Birchwood Facility will transform 115,000 tons per year of spray dryer by-products that are currently being disposed of in an offsite landfill into 167,000 tons of a useful product, lightweight aggregates that can be used to manufacture lightweight aggregates that can be used to manufacture lightweight and medium weight masonry blocks. In addition to the environmental benefits, the Birchwood Facility will create eight (8) manufacturing jobs plus additional employment in the local trucking industry to deliver the aggregate to customers or reagents to the facility. A successful demonstration would lead to additional lightweight aggregate manufacturing facilities in the United States. There are currently twenty-one (21) spray dryer facilities operating in the United States that produce an adequate amount of spray dryer by-product to economically justify the installation of a lightweight aggregate manufacturing facility. Industry sources believe that as additional scrubbing is required, dry flue gas desulfurization (FGD) technologies will be the technology of choice. Letters from potential lightweight aggregate customers indicate that there is a market for the product once the commercialization barriers are eliminated by this demonstration project.

  6. Power-law of Aggregate-size Spectra in Natural Systems

    E-Print Network [OSTI]

    Matteo Convertino; Filippo Simini; Filippo Catani; Igor Linkov; Gregory A. Kiker

    2013-03-07T23:59:59.000Z

    Patterns of animate and inanimate systems show remarkable similarities in their aggregation. One similarity is the double-Pareto distribution of the aggregate-size of system components. Different models have been developed to predict aggregates of system components. However, not many models have been developed to describe probabilistically the aggregate-size distribution of any system regardless of the intrinsic and extrinsic drivers of the aggregation process. Here we consider natural animate systems, from one of the greatest mammals - the African elephant (\\textit{Loxodonta africana}) - to the \\textit{Escherichia coli} bacteria, and natural inanimate systems in river basins. Considering aggregates as islands and their perimeter as a curve mirroring the sculpting network of the system, the probability of exceedence of the drainage area, and the Hack's law are shown to be the the Kor\\v{c}ak's law and the perimeter-area relationship for river basins. The perimeter-area relationship, and the probability of exceedence of the aggregate-size provide a meaningful estimate of the same fractal dimension. Systems aggregate because of the influence exerted by a physical or processes network within the system domain. The aggregate-size distribution is accurately derived using the null-method of box-counting on the occurrences of system components. The importance of the aggregate-size spectrum relies on its ability to reveal system form, function, and dynamics also as a function of other coupled systems. Variations of the fractal dimension and of the aggregate-size distribution are related to changes of systems that are meaningful to monitor because potentially critical for these systems.

  7. Two-Dimensional Infrared Correlation Spectroscopy Study of the Aggregation of Cytochrome c in the Presence

    E-Print Network [OSTI]

    Pezolet, Michel

    Two-Dimensional Infrared Correlation Spectroscopy Study of the Aggregation of Cytochrome c´ cules, Universite´ Laval, Que´ bec, Que´ bec, Canada G1K 7P4 ABSTRACT Two-dimensional infrared-step aggregation process. Finally, the results obtained during the heating period clearly indicate that before

  8. 9,10-Anthraquinone hinders b-aggregation: How does a small

    E-Print Network [OSTI]

    Caflisch, Amedeo

    9,10-Anthraquinone hinders b-aggregation: How does a small molecule interfere with Ab of two relatively similar tricyclic, planar compounds, that is, 9, 10-anthraquinone (AQ) and anthracene; implicit solvent; Alzheimer's disease; 9,10-anthraquinone; amyloid; aggregation inhibition Introduction

  9. Synthetic aggregates prepared from flue gas desulfurization by-products using various binder materials

    SciTech Connect (OSTI)

    Bellucci, J.; Graham, U.M.; Hower, J.C.; Robl, T.L. [Univ. of Kentucky, Lexington, KY (United States). Center for Applied Energy Research

    1994-12-31T23:59:59.000Z

    Flue Gas Desulfurization (FGD) by-products can be converted into environmentally safe and structurally stable aggregates. One type of synthetic aggregate was prepared using an optimum mixture of (FGD) by-products, fly ash, and water. Mineral reactions have been examined using X-ray diffraction and scanning electron microscope.

  10. Effect of Water on Deposition, Aggregate Size, and Viscosity of Asphaltenes

    E-Print Network [OSTI]

    Firoozabadi, Abbas

    Effect of Water on Deposition, Aggregate Size, and Viscosity of Asphaltenes Seyma Aslan and Abbas. In this study, we investigate the aggregation and deposition of water and asphaltenes, the most polar fraction and provide the evidence for clear changes in asphaltene deposition. Differential interference contrast (DIC

  11. National Aggregates of Geospatial Data Collection: Population, Landscape And Climate Estimates, Version 3

    E-Print Network [OSTI]

    Columbia University

    1 National Aggregates of Geospatial Data Collection: Population, Landscape And Climate Estimates of Geospatial Data: Population, Landscape and Climate Estimates Version 3 (PLACE III), Palisades, NY: CIESIN.............................................................................................................. 16 #12;2 I. Introduction The National Aggregates of Geospatial Data collection converts geospatial

  12. Forecast of the electricity consumption by aggregation of specialized experts; application to Slovakian and French

    E-Print Network [OSTI]

    Forecast of the electricity consumption by aggregation of specialized experts; application-term forecast of electricity consumption based on ensemble methods. That is, we use several possibly independent´erieure and CNRS. hal-00484940,version1-19May2010 #12;Forecast of the electricity consumption by aggregation

  13. Influence of recycled fine aggregates on the resistance of mortars to magnesium sulfate attack

    SciTech Connect (OSTI)

    Lee, Seung-Tae [Department of Civil Engineering, Kunsan National University, 68 Miryong-dong, Kunsan, Jeonbuk 573-701 (Korea, Republic of)], E-mail: stlee@kunsan.ac.kr

    2009-08-15T23:59:59.000Z

    The influence of recycled fine aggregates, which had been reclaimed from field-demolished concretes, on the resistance of mortar specimens to magnesium sulfate attack was investigated. Mortar specimens were prepared with recycled fine aggregates at different replacement levels (0%, 25%, 50%, 75% and 100% of natural fine aggregate by mass). The mortar specimens were exposed to 4.24% magnesium sulfate solution for about 1 year at ambient temperature, and regularly monitored for visual appearance, compressive strength loss and expansion. Additionally, in order to identify products of magnesium sulfate attack, mortar samples incorporating 0%, 25% and 100% replacement levels of the recycled fine aggregates were examined by X-ray diffraction (XRD) technique. Experimental results confirmed that the use of recycled fine aggregates up to a maximum 50% replacement level is effective under severe magnesium sulfate environment, irrespective of type of recycled fine aggregates. However, the worse performance was observed in mortar specimens incorporating 100% replacement level. It was found that the water absorption of recycled fine aggregates affected deterioration of mortar specimens, especially at a higher replacement level. XRD results indicated that the main cause of deterioration of the mortar specimens was primarily due to the formation of gypsum and thaumasite by magnesium sulfate attack. In addition, it appeared that the conversion of C-S-H into M-S-H by the attack probably influenced mechanical deterioration of mortar specimens with recycled fine aggregates.

  14. Soil Aggregate Size Affects Phosphorus Desorption from Highly Weathered Soils and Plant Growth

    E-Print Network [OSTI]

    van Kessel, Chris

    Soil Aggregate Size Affects Phosphorus Desorption from Highly Weathered Soils and Plant Growth X of P around soil aggregates (Gunary et al., 1964; Linquist etfrom soil, understanding P desorption from soils may improve the precision of P diagnosis and fertilization recommendations. Many al., 1997

  15. Lithium Inhibits a Late Step in Agrin-Induced AChR Aggregation

    E-Print Network [OSTI]

    Sharma, Shiv K.

    Lithium Inhibits a Late Step in Agrin-Induced AChR Aggregation S. K. Sharma,* B. G. Wallace 1. Here we report that treating chick myotubes with lithium prevented any detectable agrin-induced change phosphorylation and detergent extractabil- ity. Lithium treatment also increased the rate at which AChR aggregates

  16. Polymer Thermodynamics and Chain Structure Polymers display some similarities and some differences with nano-aggregates.

    E-Print Network [OSTI]

    Beaucage, Gregory

    Polymer Thermodynamics and Chain Structure Polymers display some similarities and some differences with nano-aggregates. Both materials are composed of basic units, Kuhn units for polymers which are rod an aggregate in nanomaterials and a polymer coil in Polymer Science. The mass-fractal or minimum dimension

  17. Continental Shelf Research 22 (2002) 967986 Physical and chemical effects of grain aggregates on the Palos

    E-Print Network [OSTI]

    of the grain aggregates through fecal pellet production. Particle settling rates and densities microscope images of the aggregates show that they are predominantly oval fecal pellets or irregularly shaped fragments of pellets. Deposit-feeding polychaete worms such as Capitella sp. and Mediomastus sp., abundant

  18. Molecular Dynamics Simulation of the SH3 Domain Aggregation Suggests a Generic

    E-Print Network [OSTI]

    Stanley, H. Eugene

    the elongation of amyloid fibrils.12 15 However, the domain swapping hypothesis is based on the aggregation and the open aggregation state. The closed dimer is formed by "domain swapping"-- the two proteins exchange human disease were found to be able to form amyloid fibril struc- tures in vitro under denaturing

  19. THE HIGH-END VIRTUALIZATION COMPANY SERVER AGGREGATION CREATING THE POWER OF ONE

    E-Print Network [OSTI]

    Wisconsin at Madison, University of

    . Simplify. Save. Nir Paikowsky Director of Application Engineering 10/14/20091 Virtual SMP with vSMP Foundation for Cloud #12;Aggregate. Scale. Simplify. Save. Confidential and Proprietary Agenda 1. PERFORMANCE 4/14/2010 2 #12;Aggregate. Scale. Simplify. Save. Confidential and Proprietary INTRODUCTION 4

  20. Efficient Aggregation of Delay-Constrained Data in Wireless Sensor Networks Kemal Akkaya and Mohamed Younis

    E-Print Network [OSTI]

    Younis, Mohamed

    energy saving mechanism for sensor nodes is to exploit in-network data aggregation. In wireless sensor of in-network data aggregation is to eliminate unnecessary packet transmission by filtering out conditions data are routed in a best- effort manner with flexible latency bounds. Contemporary in-network

  1. JournalofCellScience Transfer of polyglutamine aggregates in neuronal cells

    E-Print Network [OSTI]

    Boyer, Edmond

    JournalofCellScience Transfer of polyglutamine aggregates in neuronal cells occurs in tunneling neurodegenerative disease caused by CAG expansion in the huntingtin gene, which adds a homopolymeric tract recombinant fragments of mutant Htt in neuronal cells and in primary neurons, we found that aggregated

  2. Mutations that Reduce Aggregation of the Alzheimer's Ab42 Peptide: an Unbiased Search for the Sequence

    E-Print Network [OSTI]

    Hecht, Michael H.

    to green fluorescent protein (GFP) form insoluble aggregates in which GFP is inactive. Cells expressing constructed and screened libraries of Ab42GFP fusions in which the sequence of Ab42 was mutated randomly. Cells expressing GFP fusions to soluble (non- aggregating) variants of Ab42 exhibit green fluorescence

  3. Effect of aggregation on thermal conduction in colloidal nanofluids Ravi Prashera ,b

    E-Print Network [OSTI]

    Fish, Jacob

    Effect of aggregation on thermal conduction in colloidal nanofluids Ravi Prashera ,b Intel of nanofluids can be significantly enhanced by the aggregation of nanoparticles into clusters. Predictions of the effective medium theory are in excellent agreement with detailed numerical calculation on model nanofluids

  4. Scaling Relations and Optimization of Excitonic Energy Transfer Rates between One-Dimensional Molecular Aggregates

    E-Print Network [OSTI]

    Cao, Jianshu

    systems such as organic photovoltaic systems and the low-dimensional aggregates formed by amphiphilic on the donor- acceptor separation, nonmonotonic dependence on aggregate size and the breakdown of far on the nano scale and to decipher the molecular details of important biological systems. The FRET theory has

  5. TECHNICAL REPORT UNIVERSITY OF PENNSYLVANIA 1 Individual QoS versus Aggregate QoS

    E-Print Network [OSTI]

    Guerin, Roch

    TECHNICAL REPORT UNIVERSITY OF PENNSYLVANIA 1 Individual QoS versus Aggregate QoS: A Loss, the differences that can exist between individual and aggregate loss guarantees in an environment where guarantees of additional resources, e.g., bandwidth or buffer, required to ensure that all individual loss measures remain

  6. An Optimized In-Network Aggregation Scheme for Data Collection in Periodic Sensor Networks

    E-Print Network [OSTI]

    Boyer, Edmond

    -network data aggregation is considered an effective technique for conserving energy communication in wireless Networks and Wireless, Serbia (2012)" #12;the sink. In-network data aggregation has been proven aiming to optimize the volume of data transmitted thus saving energy consumption and reducing bandwidth

  7. Recycling spent sandblasting grit and similar wastes as aggregate in asphaltic concrete. Technical data sheet

    SciTech Connect (OSTI)

    Heath, J.C.; Nelson, B.

    1998-12-01T23:59:59.000Z

    The Naval Facilities Engineering Service Center (NFESC), Port Hueneme, California, and Naval Facilities Engineering Command Engineering Field Activity, West, San Bruno, California, took overall leadership in identifying and testing methods to manage waste generated from a machine shop located at Hunters Point Annex, at Naval Station, Treasure Island, California. Ship cleaning and equipment maintenance resulted in the accumulation of 4,665 tons of spent sandblasting grit at the site. The spent grit, consisting of silica sand plus a small amount of slag-derived grit, had the physical characteristics of coarse-grained beach sand and also contained fragments of coatings. The spent grit had the potential for exhibiting hazardous characteristics since the coatings included lead-based primers, copper, and butyltin-containing antifouling topcoats. The most beneficial application of reusing the spent grit was to use it as a replacement for some of the fine aggregate in asphaltic concrete. A test program was established that included characterization, bench-scale testing, long-term pilot scale testing, and a full-scale demonstration. Full-scale asphalt production provided samples which proved both the chemical leaching resistance and physical performance characteristics were acceptable.

  8. Role of aggregation conditions and presence of small heat shock proteins on abeta structure, stability and toxicity

    E-Print Network [OSTI]

    Lee, Sung Mun

    2006-08-16T23:59:59.000Z

    to the most toxic ?? species change their structure the most rapidly in denaturant, and that in general, increased toxicity correlated with decreased aggregate stability. In Alzheimer?s disease, even delaying A? aggregation onset or slowing its...

  9. Hypothesis of Dye Aggregation in a Nematic Liquid Crystal: From Experiment to a Model of the Enhanced

    E-Print Network [OSTI]

    Lavrentovich, Oleg D.

    with anthraquinone dye molecules (Jaanossy effect) can be related to their aggregation. The torque on the director

  10. Quantify shape, angularity and surface texture of aggregates using image analysis and study their effect on performance

    E-Print Network [OSTI]

    Sukhwani, Rajni

    2003-01-01T23:59:59.000Z

    Material Selection. . Gradation. . Mixture Design. Laboratory Tests. . . . . . . . . APA Test. . Hamburg Test. Results. Results and Analysis. . 45 45 47 48 48 49 50 5 VI STATISTICAL ANALYSIS. T-Test Results... . . Hamburg Test Results of all the Three Aggregates. . . . . 47 51 17 APA Test Results of all the Three Aggregates. . . 52 18 Gradient Angularity Results of Fine Aggregates. . . 54 Radius Angularity Results of Fine Aggregates . . 54 FIGURE Page 20 Form...

  11. Beads on a string: Structure of bound aggregates of globular particles and long polymer chains

    E-Print Network [OSTI]

    Anton Souslov; Jennifer E. Curtis; Paul M. Goldbart

    2015-05-28T23:59:59.000Z

    Macroscopic properties of suspensions, such as those composed of globular particles (e.g., colloidal or macromolecular), can be tuned by controlling the equilibrium aggregation of the particles. We examine how aggregation -- and, hence, macroscopic properties -- can be controlled in a system composed of both globular particles and long, flexible polymer chains that reversibly bind to one another. We base this on a minimal statistical mechanical model of a single aggregate in which the polymer chain is treated either as ideal or self-avoiding, and, in addition, the globular particles are taken to interact with one another via excluded volume repulsion. Furthermore, each of the globular particles is taken to have one single site to which at most one polymer segment may bind. Within the context of this model, we examine the statistics of the equilibrium size of an aggregate and, thence, the structure of dilute and semidilute suspensions of these aggregates. We apply the model to biologically relevant aggregates, specifically those composed of macromolecular proteoglycan globules and long hyaluronan polymer chains. These aggregates are especially relevant to the materials properties of cartilage and the structure-function properties of perineuronal nets in brain tissue, as well as the pericellular coats of mammalian cells.

  12. DURABILITY EVALUATION AND PRODUCTION OF MANUFACTURED AGGREGATES FROM COAL COMBUSTION BY-PRODUCTS

    SciTech Connect (OSTI)

    M. M. Wu

    2005-02-01T23:59:59.000Z

    Under the cooperative agreement with DOE, the Research and Development Department of CONSOL Energy (CONSOL R&D), teamed with Universal Aggregates, LLC, to conduct a systematic study of the durability of aggregates manufactured using a variety of flue gas desulfurization (FGD), fluidized-bed combustion (FBC) and fly ash specimens with different chemical and physical properties and under different freeze/thaw, wet/dry and long-term natural weathering conditions. The objectives of the study are to establish the relationships among the durability and characteristics of FGD material, FBC ash and fly ash, and to identify the causes of durability problems, and, ultimately, to increase the utilization of FGD material, FBC ash and fly ash as a construction material. Manufactured aggregates made from FGD material, FBC ash and fly ash, and products made from those manufactured aggregates were used in the study. The project is divided into the following activities: sample collection and characterization; characterization and preparation of manufactured aggregates; determination of durability characteristics of manufactured aggregates; preparation and determination of durability characteristics of manufactured aggregate products; and data evaluation and reporting.

  13. Characterization of aggregate resistance to degradation in stone matrix asphalt mixtures

    E-Print Network [OSTI]

    Gatchalian, Dennis

    2006-04-12T23:59:59.000Z

    breakdown, as can be seen on Figure 2.1 through comparing the gradation after compaction with that before compaction. Figure 2.1: Influence of Compaction on Change in Gradation (after Xie and Watson 2004). 14 The L.A. abrasion value and F... on Aggregate Breakdown (after Xie and Watson 2004). LA Abrasion value, % 15 Figure 2.3: Influence of F&E Content on Aggregate Breakdown (after Xie and Watson 2004). Methods for Characterization of Aggregates for SMA Mixtures An important...

  14. Thermodynamics of Peptide Aggregation Processes. An Analysis from Perspectives of Three Statistical Ensembles

    E-Print Network [OSTI]

    Christoph Junghans; Michael Bachmann; Wolfhard Janke

    2007-12-06T23:59:59.000Z

    We employ a mesoscopic model for studying aggregation processes of protein-like hydrophobic-polar heteropolymers. By means of multicanonical Monte Carlo computer simulations, we find strong indications that peptide aggregation is a phase separation process, in which the microcanonical entropy exhibits a convex intruder due to nonnegligible surface effects of the small systems. We analyze thermodynamic properties of the conformational transitions accompanying the aggregation process from the multicanonical, canonical, and microcanonical perspective. It turns out that the microcanonical description is particularly advantageous as it allows for unraveling details of the phase-separation transition in the thermodynamic region, where the temperature is not a suitable external control parameter anymore.

  15. Structure, electronic properties, and aggregation behavior of hydroxylated carbon nanotubes

    SciTech Connect (OSTI)

    Lpez-Oyama, A. B.; Silva-Molina, R. A.; Ruz-Garca, J.; Guirado-Lpez, R. A., E-mail: guirado@ifisica.uaslp.mx [Instituto de Fsica Manuel Sandoval Vallarta, Universidad Autnoma de San Luis Potos, lvaro Obregn 64, 78000 San Luis Potos, San Luis Potos (Mexico); Gmez-Corrales, R. [Departamento de Fsica, Universidad de Sonora, Apartado Postal 5-088, 83190, Hermosillo, Sonora (Mexico)

    2014-11-07T23:59:59.000Z

    We present a combined experimental and theoretical study to analyze the structure, electronic properties, and aggregation behavior of hydroxylated multiwalled carbon nanotubes (OHMWCNT). Our MWCNTs have average diameters of ?2 nm, lengths of approximately 100300 nm, and a hydroxyl surface coverage ??0.1. When deposited on the air/water interface the OHMWCNTs are partially soluble and the floating units interact and link with each other forming extended foam-like carbon networks. Surface pressure-area isotherms of the nanotube films are performed using the Langmuir balance method at different equilibration times. The films are transferred into a mica substrate and atomic force microscopy images show that the foam like structure is preserved and reveals fine details of their microstructure. Density functional theory calculations performed on model hydroxylated carbon nanotubes show that low energy atomic configurations are found when the OH groups form molecular islands on the nanotube's surface. This patchy behavior for the OH species is expected to produce nanotubes having reduced wettabilities, in line with experimental observations. OH doping yields nanotubes having small HOMOLUMO energy gaps and generates a nanotube ? OH direction for the charge transfer leading to the existence of more hole carriers in the structures. Our synthesized OHMWCNTs might have promising applications.

  16. Diffusion limited cluster aggregation with irreversible flexible bonds

    E-Print Network [OSTI]

    Sujin Babu; Jean-Christophe Gimel; Taco Nicolai

    2008-01-29T23:59:59.000Z

    Irreversible diffusion limited cluster aggregation (DLCA) of hard spheres was simulated using Brownian cluster dynamics. Bound spheres were allowed to move freely within a specified range, but no bond breaking was allowed. The structure and size distribution of the clusters was investigated before gelation. The pair correlation function and the static structure factor of the gels were determined as a function of the volume fraction and time. Bond flexibility led to local densification of the clusters and the gels, with a certain degree of order. At low volume fractions densification of the clusters occurred during their growth, but at higher volume fractions it occurred mainly after gelation. At very low volume fractions, the large scale structure (fractal dimension), size distribution and growth kinetics of the clusters was found to be close to that known for DLCA with rigid bonds. Restructuring of the gels continued for long times, indicating that aging processes in systems with strong attraction do not necessarily involve bond breaking. The mean square displacement of particles in the gels was determined. It is shown to be highly heterogeneous and to increase with decreasing volume fraction.

  17. Understanding the link between aggregated industrial production and the carbon price

    E-Print Network [OSTI]

    Boyer, Edmond

    the link between aggregated industrial production and the carbon price. In The Economics of Green Energy Association (Boston), the BC3 Low Carbon Programme Workshop on "The Economics of Green Energy and Efficiency

  18. ash-based synthetic aggregates: Topics by E-print Network

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

    state particle size distributions in a 3-d synthetic turbulent flow. We show how a fractal-like structure, typical of aggregates in natural systems, can be incorporated in an...

  19. aggregated immunoglobulin e-receptor: Topics by E-print Network

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

    of these quantum diffusion-limited aggregates vary between 1.43 and 2, depending on the size of the initial wave packet. David B. Johnson; Gonzalo Ordez 2011-11-02 62...

  20. Detection and Quantification of Expansive Clay Minerals in Geologically-Diverse Texas Aggregate Fines

    E-Print Network [OSTI]

    Russell, George 1983-

    2012-11-28T23:59:59.000Z

    Expansive clay mineral contamination of road aggregate materials in Texas is a persistent problem. Hydrous layer silicate minerals - particularly smectites - in concretes are associated with decreased strength and durability in Portland cement...

  1. An Iterative Aggregation/Disaggregation Approach for the Solution of a Mixed Integer Nonlinear Oilfield

    E-Print Network [OSTI]

    Grossmann, Ignacio E.

    Oilfield Infrastructure Planning Model Susara A. van den Heever* and Ignacio E. Grossmann** Department of Chemical Engineering, Carnegie Mellon University Pittsburgh, PA, 15213 August 1999 Keywords Oilfield planning, MINLP, aggregation, decomposition Abstract A multiperiod MINLP model for offshore oilfield

  2. Hydrodynamics in bridging and aggregation of two colloidal particles in a near-critical binary mixture

    E-Print Network [OSTI]

    Shunsuke Yabunaka; Ryuichi Okamoto; Akira Onuki

    2015-05-23T23:59:59.000Z

    We investigate bridging and aggregation of two colloidal particles in a near-critical binary mixture when the fluid far from the particles is outside the coexistence (CX) curve and is rich in the component disfavored by the colloid surfaces. In such situations, the adsorption-induced interaction is enhanced, leading to bridging and aggregation of the particles. We realize bridging firstly by changing the temperature with a fixed interparticle separation and secondly by letting the two particles aggregate. The interparticle attractive force dramatically increases upon bridging. The dynamics is governed by hydrodynamic flow around the colloid surfaces. In aggregation, the adsorption layers move with the particles and squeezing occurs at narrow separation. We take into account the renormalization effect due to the critical fluctuations using the recent local functional theory [J. Chem. Phys. 136, 114704 (2012)].

  3. Efficient Dynamic Aggregation Yitzhak Birk, Idit Keidar, Liran Liss, and Assaf Schuster

    E-Print Network [OSTI]

    graph. (The formal definition of VR allows some slack in the environments over which the aggregate- cally send messages to their neighbors, which can lead to considerable waste of resources, especially

  4. Asphaltene Aggregation: Techniques for Analysis Keith L. Gawrys and Peter K. Kilpatrick*

    E-Print Network [OSTI]

    Kilpatrick, Peter K.

    Asphaltene Aggregation: Techniques for Analysis Keith L. Gawrys and Peter K. Kilpatrick* North Carolina State University, Raleigh, North Carolina, USA ABSTRACT The study of asphaltene colloidal, hence, pose considerable challenges for the petroleum industry. Asphaltenes are defined as the toluene

  5. Aggregation phenomena in telechelic star polymer solutions Federica Lo Verso,1,* Athanassios Z. Panagiotopoulos,2

    E-Print Network [OSTI]

    Likos, Christos N.

    recently shown to assemble into interpenetrating networks, featuring mul- tiple critical points 5Aggregation phenomena in telechelic star polymer solutions Federica Lo Verso,1,* Athanassios Z Received 16 October 2008; published 16 January 2009 Telechelic star polymers are macromolecules

  6. Hydrodynamic Shear Rate Regulates Melanoma-Leukocyte Aggregation, Melanoma Adhesion to the Endothelium, and Subsequent Extravasation

    E-Print Network [OSTI]

    Dong, Cheng

    Hydrodynamic Shear Rate Regulates Melanoma-Leukocyte Aggregation, Melanoma Adhesion that polymorphonuclear neutrophils (PMNs) may enhance melanoma adhesion to the endothelium (EC) and subsequent microenvironment within the microcirculation. In this study, effects of hydrodynamic flow on regulating melanoma

  7. Hydrodynamic Shear Rate Regulates Melanoma-Leukocyte Aggregation, Melanoma Adhesion to the Endothelium, and

    E-Print Network [OSTI]

    Simon, Scott I.

    Hydrodynamic Shear Rate Regulates Melanoma-Leukocyte Aggregation, Melanoma Adhesion that polymorphonuclear neutrophils (PMNs) may enhance melanoma adhesion to the endothelium (EC) and subsequent microenvironment within the microcirculation. In this study, effects of hydrodynamic flow on regulating melanoma

  8. A case study of social vulnerability mapping: issues of scale and aggregation

    E-Print Network [OSTI]

    Burns, Gabriel Ryan

    2009-05-15T23:59:59.000Z

    This study uses geographic information systems to determine if the aggregation of census block data are better than census block group data for analyzing social vulnerability. This was done by applying a social vulnerability method that used census...

  9. Mechanisms of m-cresol-induced Protein Aggregation Studied Using a Model Protein Cytochrome c

    E-Print Network [OSTI]

    Mallela, Krishna M. G.

    and Center for Pharmaceutical Biotechnology, School of Pharmacy, University of Colorado Denver, 12700 E 19th of the decrease of G with denaturant concentration; NMR, nuclear magnetic resonance; Tm Agg, midpoint aggregation

  10. Near-infrared photodetector consisting of J-aggregating cyanine dye and metal oxide thin films

    E-Print Network [OSTI]

    Osedach, Timothy P.

    We demonstrate a near-infrared photodetector that consists of a thin film of the J-aggregating cyanine dye, U3, and transparent metal-oxide charge transport layers. The high absorption coefficient of the U3 film, combined ...

  11. The Effects of Using Alkali-Silica Reaction Affected Recycled Concrete Aggregate in Hot Mix Asphalt

    E-Print Network [OSTI]

    Geiger, Brian James

    2011-10-21T23:59:59.000Z

    occurring in reactive aggregates within the HMA or re-expansion of existing gel. The Lottman test and micro-calorimeter were used to determine the moisture susceptibility of HMA made with ASR-RCA. A differential scanning calorimeter (DSC...

  12. Effects of long jumps, reversible aggregation, and Meyer-Neldel rule on submonolayer epitaxial growth

    E-Print Network [OSTI]

    Rochefort, Alain

    Effects of long jumps, reversible aggregation, and Meyer-Neldel rule on submonolayer epitaxial with an embedded-atom-method molecular-dynamics study that the compensation law or the Meyer-Neldel rule MNR could

  13. Effects of aggregate gradation and angularity on VMA and rutting resistance

    E-Print Network [OSTI]

    Park, Dae-Wook

    2000-01-01T23:59:59.000Z

    angularity (FAA) as a function of traffic level and position of the layer within the pavement structure. This parameter is reported as the percentage of uncompacted air voids, with larger values generally indicating increased aggregate angularity and, thus...

  14. The use of sulfer modified bottom ash (SMBA) as an aggregate in asphaltic mixtures

    E-Print Network [OSTI]

    Chimakurthy, Harshavardhan

    1998-01-01T23:59:59.000Z

    , bottom ash is lighter in weight and generally much cheaper than conventional quality aggregates such as limestone, sand and gravel. This research was designed to up-grade the load-bearing charactcnstics of bottom ash and maximize its usc m asphaltic... and gravel. According to a study done by Hafizuddin Ahmad in 1974, sulfur was used extensively in sand-asphalt sulfur to upgrade marginal aggregates for use in asphaltic mixtures, was developed at Texas Transportation Institute (TT1) (JO). TTI's work...

  15. Secure and Energy-Efficient Data Aggregation in Wireless Sensor Networks

    E-Print Network [OSTI]

    Sen, Jaydip

    2012-01-01T23:59:59.000Z

    Data aggregation in intermediate nodes (called aggregator nodes) is an effective approach for optimizing consumption of scarce resources like bandwidth and energy in Wireless Sensor Networks (WSNs). However, in-network processing poses a problem for the privacy of the sensor data since individual data of sensor nodes need to be known to the aggregator node before the aggregation process can be carried out. In applications of WSNs, privacy-preserving data aggregation has become an important requirement due to sensitive nature of the sensor data. Researchers have proposed a number of protocols and schemes for this purpose. He et al. (INFOCOM 2007) have proposed a protocol - called CPDA - for carrying out additive data aggregation in a privacy-preserving manner for application in WSNs. The scheme has been quite popular and well-known. In spite of the popularity of this protocol, it has been found that the protocol is vulnerable to attack and it is also not energy-efficient. In this paper, we first present a brie...

  16. Ion aggregation in high salt solutions: Ion network versus ion cluster

    SciTech Connect (OSTI)

    Kim, Seongheun; Kim, Heejae; Choi, Jun-Ho; Cho, Minhaeng, E-mail: mcho@korea.ac.kr [Department of Chemistry, Korea University, Seoul 136-713 (Korea, Republic of)

    2014-09-28T23:59:59.000Z

    The critical aggregation phenomena are ubiquitous in many self-assembling systems. Ions in high salt solutions could also spontaneously form larger ion aggregates, but their effects on hydrogen-bond structures in water have long been controversial. Here, carrying out molecular dynamics (MD) simulation studies of high salt solutions and comparing the MD simulation results with infrared absorption and pump-probe spectroscopy of OD stretch mode of HDO in highly concentrated salt solutions and {sup 13}C-NMR chemical shift of S{sup 13}CN{sup ?} in KSCN solutions, we find evidence on the onset of ion aggregate and large-scale ion-ion network formation that concomitantly breaks water hydrogen-bond structure in certain salt solutions. Despite that these experimental results cannot provide direct evidence on the three-dimensional morphological structures of ion aggregates, they serve as reference data for verifying MD simulation methods. The MD results suggest that disrupted water hydrogen-bond network is intricately intertwined with ion-ion network. This further shows morphological variation of ion aggregate structures from ion cluster to ion network in high salt solutions that are interrelated to the onset of macroscopic aggregate formation and the water hydrogen-bond structure making and breaking processes induced by Hofmeister ions.

  17. Development of DU-AGG (Depleted Uranium Aggregate)

    SciTech Connect (OSTI)

    Lessing, P.A.

    1995-09-01T23:59:59.000Z

    Depleted uranium oxide (UO{sub 2} or U0{sub 3}) powder was mixed with fine mineral additives, pressed, and heated to about 1,250{degree}C. The additives were chemically constituted to result in an iron-enriched basalt (IEB). Melting and wetting of the IEB phase caused the urania powder compact to densify (sinter) via a liquid phase sintering mechanism. An inorganic lubricant was found to aid in green-forming of the body. Sintering was successful in oxidizing (air), inert (argon), or reducing (dry hydrogen containing) atmospheres. The use of ground U0{sub 3} powders (93 vol %) followed by sintering in a dry hydrogen-containing atmosphere significantly increased the density of samples (bulk density of 8.40 g/cm{sup 3} and apparent density of 9.48 g/cm{sup 3}, open porosity of 11.43%). An improvement in the microstructure (reduction in open porosity) was achieved when the vol % of U0{sub 3} was decreased to 80%. The bulk density increased to 8.59 g/cm{sup 3}, the apparent density decreased slightly to 8.82 g/cm{sup 3} (due to increase of low density IEB content), while the open porosity decreased to an excellent number of 2.78%. A representative sample derived from 80 vol % U0{sub 3} showed that most pores were closed pores and that, overall, the sample achieved the excellent relative density value of 94.1% of the estimated theoretical density (composite of U0{sub 2} and IEB). It is expected that ground powders of U0{sub 3} could be successfully used to mass produce lowcost aggregate using the green-forming technique of briquetting.

  18. Scaling Irregular Applications through Data Aggregation and Software Multithreading

    SciTech Connect (OSTI)

    Morari, Alessandro; Tumeo, Antonino; Chavarra-Miranda, Daniel; Villa, Oreste; Valero, Mateo

    2014-05-30T23:59:59.000Z

    Bioinformatics, data analytics, semantic databases, knowledge discovery are emerging high performance application areas that exploit dynamic, linked data structures such as graphs, unbalanced trees or unstructured grids. These data structures usually are very large, requiring significantly more memory than available on single shared memory systems. Additionally, these data structures are difficult to partition on distributed memory systems. They also present poor spatial and temporal locality, thus generating unpredictable memory and network accesses. The Partitioned Global Address Space (PGAS) programming model seems suitable for these applications, because it allows using a shared memory abstraction across distributed-memory clusters. However, current PGAS languages and libraries are built to target regular remote data accesses and block transfers. Furthermore, they usually rely on the Single Program Multiple Data (SPMD) parallel control model, which is not well suited to the fine grained, dynamic and unbalanced parallelism of irregular applications. In this paper we present {\\bf GMT} (Global Memory and Threading library), a custom runtime library that enables efficient execution of irregular applications on commodity clusters. GMT integrates a PGAS data substrate with simple fork/join parallelism and provides automatic load balancing on a per node basis. It implements multi-level aggregation and lightweight multithreading to maximize memory and network bandwidth with fine-grained data accesses and tolerate long data access latencies. A key innovation in the GMT runtime is its thread specialization (workers, helpers and communication threads) that realize the overall functionality. We compare our approach with other PGAS models, such as UPC running using GASNet, and hand-optimized MPI code on a set of typical large-scale irregular applications, demonstrating speedups of an order of magnitude.

  19. Mine-to-Mill Optimization of Aggregate Production

    SciTech Connect (OSTI)

    Greg Adel; Toni Kojovic; Darren Thornton

    2006-06-01T23:59:59.000Z

    Mine-to-Mill optimization is a total systems approach to the reduction of energy and cost in mining and mineral processing operations. Developed at the Julius Krutschnitt Mineral Research Centre (JKMRC) in Queensland, Australia, the Mine-to-Mill approach attempts to minimize energy consumption through the optimization of all steps in the size reduction process. The approach involves sampling and modeling of blasting and processing, followed by computer simulation to optimize the operation and develop alternatives. The most promising alternatives are implemented, and sampling is conducted to quantify energy savings. In the current project, the primary objective is to adapt the JKMRC Mine-to-Mill technology to the aggregates industry. The second phase of this project is being carried out at the Pittsboro Quarry located south of Chapel Hill, North Carolina. This quarry is owned by 3M Corporation and operated by Luck Stone. Based on lessons learned from the first phase work, long-term monitoring ({approx} three months) of all quarry operations is being carried out to minimize the impact of geological changes during the mining process. To date, the blasting and processing operations have been audited and modeled, the long-term monitoring of current Luck Stone practice has been completed, and a modified blasting approach has been implemented based on the results of simulations using JKSimBlast and JKSimPlant. The modified blasting approach is expected to increase the primary throughput by 15% and the secondary throughput by approximately 6%, with an overall specific energy reduction of around 1%. Long-term monitoring is currently underway to evaluate the impact the modified blasting approach. This report summarizes the current status of work at the Pittsboro Quarry.

  20. Nuclear Arms Control R&D Consortium includes Los Alamos

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

    Nuclear Arms Control R&D Consortium includes Los Alamos Nuclear Arms Control R&D Consortium includes Los Alamos A consortium led by the University of Michigan that includes LANL as...

  1. A Roadmap to Success: Hiring, Retaining, and Including People...

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

    A Roadmap to Success: Hiring, Retaining, and Including People with Disabilities A Roadmap to Success: Hiring, Retaining, and Including People with Disabilities December 5, 2014...

  2. [Article 1 of 7: Motivates and Includes the Consumer

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

    and include the consumer exist. Some examples include advanced two-way metering (AMI), demand response (DR), and distributed energy resources (DER). A common misconception is...

  3. Including Retro-Commissioning in Federal Energy Savings Performance...

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

    Including Retro-Commissioning in Federal Energy Savings Performance Contracts Including Retro-Commissioning in Federal Energy Savings Performance Contracts Document describes...

  4. Investigations into the Nature of Halogen Bonding Including Symmetry...

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

    into the Nature of Halogen Bonding Including Symmetry Adapted Perturbation Theory Analyses. Investigations into the Nature of Halogen Bonding Including Symmetry Adapted...

  5. Laminopathy-inducing lamin A mutants can induce redistribution of lamin binding proteins into nuclear aggregates

    SciTech Connect (OSTI)

    Huebner, S. [Department of Biochemistry and Molecular Biology, Nuclear Signalling Laboratory, PO Box 13D, Monash University, Clayton, Victoria 3800 (Australia)]. E-mail: stefan.huebner@med.monash.edu.au; Eam, J.E. [Department of Biochemistry and Molecular Biology, Nuclear Signalling Laboratory, PO Box 13D, Monash University, Clayton, Victoria 3800 (Australia); Huebner, A. [Department of Biochemistry and Molecular Biology, Nuclear Signalling Laboratory, PO Box 13D, Monash University, Clayton, Victoria 3800 (Australia); Jans, D.A. [Department of Biochemistry and Molecular Biology, Nuclear Signalling Laboratory, PO Box 13D, Monash University, Clayton, Victoria 3800 (Australia)

    2006-01-15T23:59:59.000Z

    Lamins, members of the family of intermediate filaments, form a supportive nucleoskeletal structure underlying the nuclear envelope and can also form intranuclear structures. Mutations within the A-type lamin gene cause a variety of degenerative diseases which are collectively referred to as laminopathies. At the molecular level, laminopathies have been shown to be linked to a discontinuous localization pattern of A-type lamins, with some laminopathies containing nuclear lamin A aggregates. Since nuclear aggregate formation could lead to the mislocalization of proteins interacting with A-type lamins, we set out to examine the effects of FLAG-lamin A N195K and R386K protein aggregate formation on the subnuclear distribution of the retinoblastoma protein (pRb) and the sterol responsive element binding protein 1a (SREBP1a) after coexpression as GFP-fusion proteins in HeLa cells. We observed strong recruitment of both proteins into nuclear aggregates. Nuclear aggregate recruitment of the NPC component nucleoporin NUP153 was also observed and found to be dependent on the N-terminus. That these effects were specific was implied by the fact that a number of other coexpressed karyophilic GFP-fusion proteins, such as the nucleoporin NUP98 and kanadaptin, did not coaggregate with FLAG-lamin A N195K or R386K. Immunofluorescence analysis further indicated that the precursor form of lamin A, pre-lamin A, could be found in intranuclear aggregates. Our results imply that redistribution into lamin A-/pre-lamin A-containing aggregates of proteins such as pRb and SREBP1a could represent a key aspect underlying the molecular pathogenesis of certain laminopathies.

  6. Price and Non-Price Influences on Water Conservation: An Econometric Model of Aggregate Demand under Nonlinear Budget Constraint

    E-Print Network [OSTI]

    Corral, Leonardo; Fisher, Anthony C.; Hatch, Nile W.

    1999-01-01T23:59:59.000Z

    declining-block tarrifs: An econometric study using micro-ON WATER CONSERVATION: ECONOMETRIC AN MODEL OF AGGREGATEWater Conservation: An Econometric Model of Aggregate Demand

  7. Discrete element modelling of iron ore pellets to include the effects of moisture and fines

    E-Print Network [OSTI]

    Morrissey, John Paul

    2013-11-28T23:59:59.000Z

    Across industry the majority of raw materials handled are particulate in nature, ranging in size and properties from aggregates to powders. The stress regimes experienced by the granular solids vary and the exhibited ...

  8. Cosmological Simulations of Galaxy Formation Including Hydrodynamics (hyper-abridged)

    E-Print Network [OSTI]

    F J Summers

    1994-06-02T23:59:59.000Z

    The formation of galaxies in hierarchical cosmogonies is studied using high resolution N-body plus SPH hydrodynamics simulations. The collapse of structure is followed self-consistently from Mpc scale filamentary structures to kpc scale galactic objects. The characteristics and formation processes of the galaxy like objects are studied in detail, along with the aggregation into a poor cluster. Related studies consider the effects of modelling star formation, the reliability of tracing galaxies in simulations, and tests of SPH methods. This submission serves first to notify that the full text and figures of my thesis are available in compressed PostScript form via anonymous ftp from astro.princeton.edu in the directory /summers/thesis (122 files, 19 MB compressed, 65 MB uncompressed). See the README file first. Second, this submission contains the title page, abstract, table of contents, introductory chapter, summary chapter, and references for my thesis. Those who are curious about the work may scan these pages to identify which chapters may be interesting to get via ftp.

  9. Geoenvironmental and engineering properties of rock, soil, and aggregate. Transportation research record

    SciTech Connect (OSTI)

    Not Available

    1992-01-01T23:59:59.000Z

    Partial Contents: Use of Waste Materials in Highway Construction: State of the Practice and Evaluation of the Selected Waste Products; Physical and Environmental Properties of Asphalt-Amended Bottom Ash; Use of Cement Kiln Dust, Fly Ash, and Recycling Technique in Low-Volume Road Rehabilitation; Use of By-Product Phosphogypsum in Road Construction; Stabilization of Water Treatment Plant Sludge for Possible Use as Embankment Material; Construction and Performance of a Shredded Waste Tire Test Embankment; Corrosion of Steel Piles in Some Waste Fills; Recycled Plastics for Highway Agencies; Effect of Chloride and Sulfate Contamination in Soils on Corrosion of Steel and Concrete; Permeability and Leaching Characteristics of Fly Ash Liner Materials; Evaluation of Recycled Concrete, Open-Graded Aggregate, and Large Top-Size Aggregate Bases; Engineering Properties of Phosphogypsum-Based Slag Aggregate.

  10. Stability of Iowa mutant and wild type A?-peptide aggregates

    SciTech Connect (OSTI)

    Alred, Erik J.; Scheele, Emily G.; Berhanu, Workalemahu M.; Hansmann, Ulrich H. E., E-mail: uhansmann@ou.edu [Department of Chemistry and Biochemistry, University of Oklahoma, Norman, Oklahoma 73019 (United States)

    2014-11-07T23:59:59.000Z

    Recent experiments indicate a connection between the structure of amyloid aggregates and their cytotoxicity as related to neurodegenerative diseases. Of particular interest is the Iowa Mutant, which causes early-onset of Alzheimer's disease. While wild-type Amyloid ?-peptides form only parallel beta-sheet aggregates, the mutant also forms meta-stable antiparallel beta sheets. Since these structural variations may cause the difference in the pathological effects of the two A?-peptides, we have studied in silico the relative stability of the wild type and Iowa mutant in both parallel and antiparallel forms. We compare regular molecular dynamics simulations with such where the viscosity of the samples is reduced, which, we show, leads to higher sampling efficiency. By analyzing and comparing these four sets of all-atom molecular dynamics simulations, we probe the role of the various factors that could lead to the structural differences. Our analysis indicates that the parallel forms of both wild type and Iowa mutant aggregates are stable, while the antiparallel aggregates are meta-stable for the Iowa mutant and not stable for the wild type. The differences result from the direct alignment of hydrophobic interactions in the in-register parallel oligomers, making them more stable than the antiparallel aggregates. The slightly higher thermodynamic stability of the Iowa mutant fibril-like oligomers in its parallel organization over that in antiparallel form is supported by previous experimental measurements showing slow inter-conversion of antiparallel aggregates into parallel ones. Knowledge of the mechanism that selects between parallel and antiparallel conformations and determines their relative stability may open new avenues for the development of therapies targeting familial forms of early-onset Alzheimer's disease.

  11. acid analysis including: Topics by E-print Network

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

    Nairn, John A. 12 A bottom-up analysis of including aviation within theEU's Emissions Trading Scheme Geosciences Websites Summary: A bottom-up analysis of including aviation...

  12. analysis including quantification: Topics by E-print Network

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

    Ausloos 2004-12-31 29 A bottom-up analysis of including aviation within theEU's Emissions Trading Scheme Geosciences Websites Summary: A bottom-up analysis of including aviation...

  13. Biomarkers Core Lab Price List Does NOT Include

    E-Print Network [OSTI]

    Grishok, Alla

    v3102014 Biomarkers Core Lab Price List Does NOT Include Kit Cost PURCHASED by INVESTIGATOR/1/2013 Page 1 of 5 #12;Biomarkers Core Lab Price List Does NOT Include Kit Cost PURCHASED by INVESTIGATOR

  14. Example Retro-Commissioning Scope of Work to Include Services...

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

    Retro-Commissioning Scope of Work to Include Services as Part of an ESPC Investment-Grade Audit Example Retro-Commissioning Scope of Work to Include Services as Part of an ESPC...

  15. Reduction and aggregation of silver in aqueous gelatin and silica suspensions

    SciTech Connect (OSTI)

    Kapoor, S.; Lawless, D.; Kennepohl, P.; Meisel, D. [Argonne National Lab., IL (United States); Serpone, N. [Concordia Univ., Montreal, Quebec (Canada)

    1994-06-01T23:59:59.000Z

    The investigation of silver reduction and aggregation processes are of specific interest to the photographic industry, which relies heavily on photochemical equivalents of these reactions. Mechanistic insights into the formation of small silver clusters in aqueous solution have been obtained from both pulse and {gamma}-radiolytic studies. This paper examines the reduction of silver ions and the subsequent formation of silver clusters in aqueous gelatin solutions and on colloidal silica particles using the pulse radiolysis technique. The aggregation processes are compared with the parallel reactions in aqueous solutions.

  16. Hail formation as a mechanism of rapid ash aggregation in volcanic plumes

    E-Print Network [OSTI]

    Van Eaton, Alexa R.; Mastin, Larry G.; Herzog, Michael; Schwaiger, Hans F.; Schneider, David J.; Wallace, Kristi L.; Clarke, Amanda B.

    2015-06-25T23:59:59.000Z

    ,36, we compared the fall deposit resulting from 158! event 5 with and without an aggregated grain size distribution (see Methods). In 159! agreement with the mapped deposits, our results indicate that aggregation increased the 160! near-source ashfall... concentration. View is from the east. Topography is from the 30 m-resolution 573! digital elevation model (ASTER GDEM V2). 574! 10 8 6 4 2 0 -2 -4 0 20 40 1 4 16 63 250 1,000 4,000 16,000 (?)!! W ei gh t % Particle diameter (m) a c b 1,000 100 10...

  17. Muffle furnace evaluation of FGD sludge-coal-clay mixtures as potential synthetic aggregates

    E-Print Network [OSTI]

    Pettit, Jesse William

    1978-01-01T23:59:59.000Z

    or returned to the adjacent surface coal mines for disposal. Alternatives to these two methods of disposal are being studied (3, 6, 11). The feasibility of using this material as a raw material in the manufacture of synthetic aggregates has recently been... suitability of synthetic aggregates made from lignite fly ash using a rotary kiln. Lignite or subbituminous coals such as those used are typical of the high-lime or "western" coals that are mined in the western half of the United States. Because of the high...

  18. Relationship Between Surface Free Energy and Total Work of Fracture of Asphalt Binder and Asphalt Binder-Aggregate Interfaces

    E-Print Network [OSTI]

    Howson, Jonathan Embrey

    2012-10-19T23:59:59.000Z

    is the surface free energy of the asphalt binder and the aggregate. Surface free energy, which is a thermodynamic material property, is directly related to the adhesive bond energy between the asphalt binder and the aggregate as well as the cohesive bond energy...

  19. Optics, Acoustics and Stress in Situ (OASIS): Effects of Aggregation, Vertical Structure, and Relation to Physical Forcing.

    E-Print Network [OSTI]

    Boss, Emmanuel S.

    Optics, Acoustics and Stress in Situ (OASIS): Effects of Aggregation, Vertical Structure. Arlington, VA 22203-1995 TITLE: Optics, Acoustics and Stress in Situ (OASIS): Effects of Aggregation of Research and Sponsored Programs #12;Abstract Nearbed optical and acoustical properties in coastal waters

  20. We analyze a set of three databases at different levels of aggregation: (a) a database of approximately 106

    E-Print Network [OSTI]

    Stanley, H. Eugene

    or global warming or renewable sources of energy) can dramatically impact the pattern of developmentWe analyze a set of three databases at different levels of aggregation: (a) a database levels of aggregation we find that the mean annual growth rates of publications is in- dependent

  1. Relationship Between Surface Free Energy and Total Work of Fracture of Asphalt Binder and Asphalt Binder-Aggregate Interfaces

    E-Print Network [OSTI]

    Howson, Jonathan Embrey

    2012-10-19T23:59:59.000Z

    is the surface free energy of the asphalt binder and the aggregate. Surface free energy, which is a thermodynamic material property, is directly related to the adhesive bond energy between the asphalt binder and the aggregate as well as the cohesive bond energy...

  2. Size-selective concentration and label-free characterization of protein aggregates using a Raman active nanofluidic device

    E-Print Network [OSTI]

    Erickson, David

    active nanofluidic device Inhee Choi,a Yun Suk Huhab and David Erickson*a Received 6th September 2010 amounts of early stage protein aggregates using a Raman active nanofluidic device. Sub-micrometre channels below a micro/nanofluidic junction allows characterization of intrinsic properties of protein aggregates

  3. Role of algal aggregation in vertical carbon export during SOIREE and in other low biomass environments

    E-Print Network [OSTI]

    Jackson, George

    Role of algal aggregation in vertical carbon export during SOIREE and in other low biomass induced an increase in phytoplankton biomass, but do not necessarily trigger increases in carbon export particles via coagulation. We demonstrate that in low biomass regions, where concentrations do not reach

  4. A Study on Crosstalk Analysis in Aggregative Transmission Lines with Turning Vias Tapobrata Bandyopadhyay1

    E-Print Network [OSTI]

    Swaminathan, Madhavan

    A Study on Crosstalk Analysis in Aggregative Transmission Lines with Turning Vias Tapobrata and signal integrity in high-speed signal channels is extremely important. Transmission lines and vias transmission lines (4 mil width) of different lengths arranged in bundles. The eight transmission line bundles

  5. Influence of coarse aggregate size, shape and surface texture on rutting of hot mix asphalt concrete

    E-Print Network [OSTI]

    Yeggoni, Mohan

    1993-01-01T23:59:59.000Z

    increased Hveem Stability, Marshall Stability and resistance to creep of hot mix asphalt concrete. The resilient modulus of the specimens was also enhanced by the increase in the amount of crushed aggregate in the mix at high temperatures (115'F). Fractal...

  6. Reduced-Order Modeling of Aggregated Thermostatic Loads With Demand Response

    E-Print Network [OSTI]

    Zhang, Wei

    Reduced-Order Modeling of Aggregated Thermostatic Loads With Demand Response Wei Zhang, Jianming Lian, Chin-Yao Chang, Karanjit Kalsi and Yannan Sun Abstract-- Demand Response is playing population of appliances under demand response is especially important to evaluate the effec- tiveness

  7. Aggregated Modeling and Control of Air Conditioning Loads for Demand Response

    E-Print Network [OSTI]

    Zhang, Wei

    1 Aggregated Modeling and Control of Air Conditioning Loads for Demand Response Wei Zhang, Member, IEEE Abstract--Demand response is playing an increasingly impor- tant role in the efficient loads is especially important to evaluate the effec- tiveness of various demand response strategies

  8. Variability in the environmental impacts of aggregate production A. Jullien1

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    the interval for impacts is situated at -24.5% to +27.5% whereas for global warming potential the range is from specific to electricity production significantly contribute to human toxicity potential and ecotoxic1 Variability in the environmental impacts of aggregate production A. Jullien1 , C. Proust2 , T

  9. Real-Time Data Aggregation in Contention-Based Wireless Sensor Networks

    E-Print Network [OSTI]

    Publications Dept., ACM, Inc., 2 Penn Plaza, Suite 701, New York, NY 10121-0701 USA, fax +1 (212) 869 done on data aggregation, such as reducing energy consumption [Intanagonwiwat et al. 2000; Tang and Xu City University of Hong Kong and GUOLIANG XING Michigan State University We investigate the problem

  10. Nature of the narrow optical band in H*-aggregates: Dozy-chaosexciton coupling

    SciTech Connect (OSTI)

    Egorov, Vladimir V., E-mail: egorov@photonics.ru [Photochemistry Center, Russian Academy of Sciences, Moscow, 119421 (Russian Federation)

    2014-07-15T23:59:59.000Z

    Dozy chaos emerges as a combined effect of the collective chaotic motion of electrons and nuclei, and their chaotic electromagnetic interactions in the transient state of molecules experiencing quantum transitions. Following earlier discussions of the well-known Brnsted relations for proton-transfer reactions; the temperature-dependent electron transfer in LangmuirBlodgett films; the shape of the optical bands of polymethine dye monomers, their dimers, and J-aggregates, this paper reports one more application of the dozy-chaos theory of molecular quantum transitions. The qualitative and quantitative explanations for shape of a narrow and blue-shifted optical absorption band in H{sup *}-aggregates is given on the basis of the dozy-chaos theory by taking into account the dozy-chaosexciton coupling effect. It is emphasized that in the H{sup *}-aggregate chromophore (dimer of cyclic bis-thiacarbocyanines) there is a competition between two Frenkel exciton transitions through the chaotic reorganization motion of nuclear environment. As a result, the highly organized quantum transition to the upper exciton state becomes an exciton-induced source of dozy chaos for the low organized transition to the lower exciton state. This manifests itself in appearing the narrow peak and broad wing in the optical spectrum pattern of H{sup *}-aggregates. A similar enhancement in the H{sup *}-effect caused by the strengthening of the exciton coupling in H{sup *}-dimers, which could be achieved by synthesizing tertiary and quarternary thiacarbocyanine monomers, is predicted.

  11. A Model-Based Framework for Developing and Deploying Data Aggregation Services

    E-Print Network [OSTI]

    Prasanna, Viktor K.

    A Model-Based Framework for Developing and Deploying Data Aggregation Services Ramakrishna Soma1 , Amol Bakshi2 , V.K.Prasanna2 , Will Da Sie3 1 Dept of Computer Science, USC, Los Angeles, CA 2 Dept of Electrical Engineering, USC, Los Angeles, CA {rsoma, amol, prasanna}@usc.edu 3 Chevron Corporation, San Ramon

  12. Effect of shear rupture on aggregate scale formation in sea ice Alexander V. Wilchinsky,1

    E-Print Network [OSTI]

    Feltham, Daniel

    is governed by Coulomb's criterion. The ice pack is a 400 km long square domain consisting of 4 km size floesEffect of shear rupture on aggregate scale formation in sea ice Alexander V. Wilchinsky,1 Daniel L; published 2 October 2010. [1] A discrete element model is used to study shear rupture of sea ice under

  13. Integration of an Aggregate Flow Model with a Traffic Flow Simulator

    E-Print Network [OSTI]

    Integration of an Aggregate Flow Model with a Traffic Flow Simulator Robert Hoffman , Dengfeng Sun restrictions to aircraft movement are applied by air traffic controllers and traffic managers in response to demand overages or capacity shortfalls in sectors of airspace. To estimate and assess the efficiency

  14. A Historical Perspective and Business Model for Load Response Aggregation Based on Priority Service

    E-Print Network [OSTI]

    Oren, Shmuel S.

    A Historical Perspective and Business Model for Load Response Aggregation Based on Priority Service technologies and experiments in the 1980's for implementing demand response. We argue that while new smart grid technologies are cheaper and provide more functionality the barrier to demand response implementation

  15. Aggregation methods in food chains with nutrient recycling B.W. Kooi a,

    E-Print Network [OSTI]

    Poggiale, Jean-Christophe

    Aggregation methods in food chains with nutrient recycling B.W. Kooi a, *, J.C. Poggiale b , P recycling is taken into account. The food chain is formed by a nutrient and two populations, prey. The excreted material together with death material, detritus, is decomposed and this gives the recycling

  16. Interactions between diatom aggregates, minerals, particulate organic carbon, and dissolved organic matter: Further

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    Interactions between diatom aggregates, minerals, particulate organic carbon, and dissolved organic October 2008. [1] Correlations of particulate organic carbon (POC) and mineral fluxes into sediment traps in the deep sea have previously suggested that interactions between organic matter and minerals play a key

  17. Condition Data Aggregation with Application to Failure Rate Calculation of Power Transformers

    E-Print Network [OSTI]

    Condition Data Aggregation with Application to Failure Rate Calculation of Power Transformers for condition monitoring and failure rate prediction of power transformers. Specif- ically, the system uses to the substation, to develop Hidden Markov Models (HMMs) which transform the condition data into failure

  18. Biased Replacement Policies for Web Caches: Differential QualityofService and Aggregate User Value \\Lambda

    E-Print Network [OSTI]

    Jamin, Sugih

    Biased Replacement Policies for Web Caches: Differential Quality­of­Service and Aggregate User reduction to different degrees, a replacement policy which priori­ tizes cache space across servers can­frequently­used (LFU) replacement that is sensitive to varying levels of server valuation for cache hits. Through trace

  19. Effects of petroleum resins on asphaltene aggregation and water-in-oil emulsion formation

    E-Print Network [OSTI]

    Kilpatrick, Peter K.

    Effects of petroleum resins on asphaltene aggregation and water-in-oil emulsion formation P; accepted 30 December 2002 Abstract Asphaltenes from four crude oils were fractionated by precipitation) indicated the onset of asphaltene precipitation occurred at lower toluene volume fractions (0.1Á/0.2) than

  20. 2005 by David M. Daly. All rights reserved. BOUNDED AGGREGATION TECHNIQUES TO SOLVE LARGE MARKOV MODELS

    E-Print Network [OSTI]

    Illinois at Urbana-Champaign, University of

    the developed aggregation techniques to solve models that would be infeasible to solve otherwise. iii #12;To my William H. Sanders, for his technical advice and support on the Mobius project. I would also like, Eric Rozier, John Sowder, Aaron Stillman, Alex Williamson, and Patrick Webster, as well as all

  1. Characteristics of Marine Aggregates in Shallow-water Ecosystems: Implications for Disease Ecology

    E-Print Network [OSTI]

    Allam, Bassem

    hydrophila, Pseudomonas aeruginosa, Escherichia coli, and Mycobacteria sp. These results have importantCharacteristics of Marine Aggregates in Shallow-water Ecosystems: Implications for Disease Ecology Smolowitz,4 Joseph Vallino,4 and Bassem Allam2 1 Department of Marine Sciences, University of Connecticut

  2. Dynamic behavior of an aggregate material at simultaneous high pressure and strain rate: SHPB triaxial tests

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    1 Dynamic behavior of an aggregate material at simultaneous high pressure and strain rate: SHPB Low velocity impacts on energetic materials induce plastic deformations and sliding friction which can pressure and high strain rate). Thus, a technique based on the Split Hopkinson Pressure Bars system

  3. Non-parametric estimation for aggregated functional data for electric load monitoring

    E-Print Network [OSTI]

    Dias, Ronaldo

    . In Brazil, the concession contract between the government and the electricity Corresponding author: IMECC on energy consumption around 6­8pm (due partially to the use of electric showers), while commercialNon-parametric estimation for aggregated functional data for electric load monitoring Ronaldo Dias

  4. Gypsum Effect on the Aggregate Size and Geometry of Three Sodic Soils Under Reclamation

    E-Print Network [OSTI]

    Ahmad, Sajjad

    Gypsum Effect on the Aggregate Size and Geometry of Three Sodic Soils Under Reclamation I. Lebron- tion of clays occurs because of the repulsion of similarReclamation of sodic soils is imperative in many areas where deteri- charged clay platelets and the ability of the soil solutionoration of land

  5. Wind Power Integration via Aggregator-Consumer Coordination: A Game Theoretic Approach

    E-Print Network [OSTI]

    Mohsenian-Rad, Hamed

    the balance between load and generation in the power grid at all times [2]. Moreover, wind generation is nonWind Power Integration via Aggregator-Consumer Coordination: A Game Theoretic Approach Chenye Wu@ie.cuhk.edu.hk Abstract--Due to the stochastic nature of wind power, its large-scale integration into the power grid

  6. On the Distribution of Chemical Properties and Aggregation of Solubility Fractions in Asphaltenes

    E-Print Network [OSTI]

    Kilpatrick, Peter K.

    material was generally less aromatic than the remaining fractions. Coefficients of linear correlation were) into underground reserves to displace the oil. This practice may result in the formation of asphaltene deposits a delicate balance between solvency, aggregation, and interfacial activity in solution that must ultimately

  7. International Patenting at the European Patent Office (EPO): Aggregate and Sectoral Filings

    E-Print Network [OSTI]

    Lansky, Joshua

    International Patenting at the European Patent Office (EPO): Aggregate and Sectoral Filings Walter: This studyanalyzes thebehaviorof patent filings at the European Patent Office (EPO), andconducts forecasting exercises using the models of patenting behavior in the EPO. The study examines the behavior of total EPO

  8. Rangeland Ecol Manage 59:406415 | July 2006 Fragmentation Effects on Soil Aggregate Stability in a

    E-Print Network [OSTI]

    Experimental Range, New Mexico State University, Las Cruces, NM 88003; and 4 Soil Scientist, USDA-NRCS, New Mexico State University, Las Cruces, NM 88003 Abstract Soil aggregate stability (AS) has been promoted formed an interconnected matrix. Wetting depth after a large storm decreased and pH increased along

  9. Using Trust-Based Information Aggregation for Predicting Security Level of Systems

    E-Print Network [OSTI]

    Ray, Indrakshi

    Using Trust-Based Information Aggregation for Predicting Security Level of Systems Siv Hilde Houmb1 level of a security solution using information sources who are trusted to varying degrees. We show how}@cs.colostate.edu Abstract. Sometimes developers must design innovative security solutions that have a rapid development

  10. Using Trust-Based Information Aggregation for Predicting Security Level of Systems

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    Using Trust-Based Information Aggregation for Predicting Security Level of Systems Siv Hilde Houmb1 level of a security solution using information sources who are trusted to varying degrees. We show how.colostate.edu Abstract. Sometimes developers must design innovative security solutions that have a rapid development

  11. Numerical simulations of aggregate breakup in bounded and unbounded turbulent flows

    E-Print Network [OSTI]

    Matthaus U. Babler; Luca Biferale; Luca Brandt; Ulrike Feudel; Ksenia Guseva; Alessandra S. Lanotte; Cristian Marchioli; Francesco Picano; Gaetano Sardina; Alfredo Soldati; Federico Toschi

    2015-02-17T23:59:59.000Z

    Breakup of small aggregates in fully developed turbulence is studied by means of direct numerical simulations in a series of typical bounded and unbounded flow configurations, such as a turbulent channel flow, a developing boundary layer and homogeneous isotropic turbulence. The simplest criterion for breakup is adopted, whereas aggregate breakup occurs when the local hydrodynamic stress $\\sigma\\sim \\varepsilon^{1/2}$, with $\\varepsilon$ being the energy dissipation at the position of the aggregate, overcomes a given threshold $\\sigma_\\mathrm{cr}$, which is characteristic for a given type of aggregates. Results show that the breakup rate decreases with increasing threshold. For small thresholds, it develops a universal scaling among the different flows. For high thresholds, the breakup rates show strong differences between the different flow configurations, highlighting the importance of non-universal mean-flow properties. To further assess the effects of flow inhomogeneity and turbulent fluctuations, theresults are compared with those obtained in a smooth stochastic flow. Furthermore, we discuss the limitations and applicability of a set of independent proxies.

  12. Integrating Renewable Energy Contracts and Wholesale Dynamic Pricing to Serve Aggregate

    E-Print Network [OSTI]

    Oren, Shmuel S.

    1 Integrating Renewable Energy Contracts and Wholesale Dynamic Pricing to Serve Aggregate Flexible energy, dynamic programming. I. INTRODUCTION Dynamic pricing has the potential to materialize the poten many of the operational problems that arise from renewable energy integration through dynamic pricing

  13. Recycled rubber, aggregate, and filler in asphalt paving mixtures. Transportation research record

    SciTech Connect (OSTI)

    NONE

    1996-12-31T23:59:59.000Z

    ;Contents(Partial): Evaluation Systems for Crumb Rubber Modified Binders and Mixtures; Hot Mix Asphalt Rubber Applications in Virginia; Evaluation of Pyrolized Carbon Black from Scrap Tires as Additive in Hot Mix Asphalt; Use of Scrap Tire Chips in Asphaltic Membrane; Effects of Mineral Fillers on Properties of Stone Matrix Asphalt Mixtures; and Quantitative Analysis of Aggregate Based on Hough Transform.

  14. Lithium Diisopropylamide-Mediated Enolizations: Solvent-Dependent Mixed Aggregation Effects

    E-Print Network [OSTI]

    Collum, David B.

    Lithium Diisopropylamide-Mediated Enolizations: Solvent-Dependent Mixed Aggregation Effects Xiufeng spectroscopic investigations of lithium diisopropylamide-mediated ester enolization in THF, t-BuOMe, HMPA that the metalations by lithium diisopropylamide (LDA) homonuclear dimers proceed at nearly solvent-independent rates

  15. A method of building an aggregated indicator of air-pollution impacts

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    A method of building an aggregated indicator of air-pollution impacts Thierry GOGER, Robert JOUMARD intend to build a global environmental impact indicator of air pollution to assess transport-generated air pollution, while simultaneously conserving the value of the environmental impact of each type

  16. Dynamics of a fishery on two fishing zones with fish stock dependent migrations: aggregation and control

    E-Print Network [OSTI]

    Bravo de la Parra, Rafael

    Dynamics of a fishery on two fishing zones with fish stock dependent migrations: aggregation a specific stock-effort dynamic model. The stock corresponds to two fish populations growing and moving between two fishing zones, on which they are harvested by two different fleets. The effort represents

  17. VirtuCast: Multicast and Aggregation with In-Network Processing

    E-Print Network [OSTI]

    Schmid, Stefan

    by network (functions) virtualization [9] and software-defined networking, e.g., #12;(a) 5 5 Grid Topology (b) Steiner Arborescence (c) Virtual Arborescence Fig. 1: An aggregation example on a 5 5 grid and storage resources available at middleboxes in datacenters [5], in universal nodes, or in distributed

  18. TWO-SETTLEMENT SYSTEMS FOR ELECTRICITY MARKETS: ZONAL AGGREGATION UNDER NETWORK UNCERTAINTY AND MARKET POWER

    E-Print Network [OSTI]

    AND MARKET POWER RAJNISH KAMAT AND SHMUEL S. OREN University of California at Berkeley {kamat oren uncertainty and market power. We formulate and analyze several models which simulate the different market trading, as well as the welfare and distributional implications of having such zonal aggregation

  19. A Robust Aggregation Method for Quasi-blind Robots in an Active Environment

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    A Robust Aggregation Method for Quasi-blind Robots in an Active Environment Nazim Fat is through an active environment (stigmergy) and the only information they can receive is the local detection of the waves produced by other robots. The active environment obeys a cellular automaton rule and is simulated

  20. Fast PCA Computation in a DBMS with Aggregate UDFs and LAPACK

    E-Print Network [OSTI]

    Ordonez, Carlos

    Fast PCA Computation in a DBMS with Aggregate UDFs and LAPACK Carlos Ordonez Naveen Mohanam Carlos Efficient and scalable execution of numerical methods in- side a DBMS is difficult as its architecture numerical methods on an existing DBMS, we explore an alternative reusability approach: call- ing the well

  1. Thermodynamics and kinetics of competing aggregation processes in a simple model system

    E-Print Network [OSTI]

    Berry, R. Stephen

    Thermodynamics and kinetics of competing aggregation processes in a simple model system Ambarish 8 November 2007 A simple model system has been used to develop thermodynamics and kinetics for bulk and thermodynamics of the processes and to infer the conditions in which one process dominates another, in the high

  2. [Frontiers in Bioscience 4795-4808, May 1, 2008] Probing protein aggregation using discrete molecular dynamics

    E-Print Network [OSTI]

    Dokholyan, Nikolay V.

    tool to study protein misfolding 5.1. Probing conformational changes in beta2-microglobulin leading predictor probing protein domain-swapping 5.6. iFold webserver as a tool to study protein aggregation 6 of fibrillar proteinaceous deposits termed "senile amyloid plaques" is characteristic of the Alzheimer

  3. Self-folding and aggregation of amyloid nanofibrils Raffaella Paparcone*, Steven W. Cranford*,

    E-Print Network [OSTI]

    Buehler, Markus J.

    -617-452-23750, Fax: +1-617-324-4014 Abstract: Amyloids are highly organized protein filaments, rich in beta-grain model to analyze the competition between adhesive forces and elastic deformation of amyloid fibrils. We-folded nanorackets and nanorings and demonstrate that such aggregated amyloid fibrils are stable in such states even

  4. Methylations of Tryptophan-Modified Naphthoquinone Affect Its Inhibitory Potential toward A Aggregation

    E-Print Network [OSTI]

    Caflisch, Amedeo

    , Winterthurerstrasse 190, CH-8057 Zurich, Switzerland *S Supporting Information ABSTRACT: Aggregation of amyloid beta, physiological and biochemical evidence suggests that the 42-residue amyloidogenic peptide amyloid beta (A) plays amyloid fibrils in vitro that are very similar to those found in the brains of AD patients. Accumulating

  5. Mutation Causing Self-Aggregation in Human C-Crystallin Leading to Congenital Cataract

    E-Print Network [OSTI]

    Srinivasan, N.

    Mutation Causing Self-Aggregation in Human C-Crystallin Leading to Congenital Cataract Venu Talla,1 of congenital hereditary cataract are as- sociated with mutations in the crystallin genes. The authors focus attention on congenital lamellar cataract, which is asso- ciated with the R168W mutation in C

  6. On the Parameter Estimation of Linear Models of Aggregate Power System Loads

    E-Print Network [OSTI]

    Caizares, Claudio A.

    1 On the Parameter Estimation of Linear Models of Aggregate Power System Loads Valery Knyazkin-- This paper addressed some theoretical and practical issues relevant to the problem of power system load, and the corresponding results are used to validate a commonly used linear model of aggre- gate power system load

  7. Colossal Aggregations of Giant Alien Freshwater Fish as a Potential Biogeochemical Hotspot

    E-Print Network [OSTI]

    Cucherousset, Julien

    , ranging from 15 to 44) adults with estimated average total biomass of 651 kg (386 1132) and biomass of ephemeral animal aggregations is the occurrence of high local density and biomass. For instance, large's third largest and Europe's largest freshwater fish, originates from Eastern Europe and has been

  8. Factor demand linkages and the business cycle: Interpreting aggregate fluctuations as sectoral fluctuations

    E-Print Network [OSTI]

    Petrella, I; Holly, Sean

    . The correlation between the aggregated series and the sum of sectors is 99.8% and 99.35% respectively for the growth rate of output and hours. We interpret this to suggest that it is safe to proceed as if u is diagonal. 17 5 Technology shocks and hours Real...

  9. Automation of Capacity Bidding with an Aggregator Using Open Automated Demand Response

    SciTech Connect (OSTI)

    Kiliccote, Sila; Piette, Mary Ann

    2008-10-01T23:59:59.000Z

    This report summarizes San Diego Gas& Electric Company?s collaboration with the Demand Response Research Center to develop and test automation capability for the Capacity Bidding Program in 2007. The report describes the Open Automated Demand Response architecture, summarizes the history of technology development and pilot studies. It also outlines the Capacity Bidding Program and technology being used by an aggregator that participated in this demand response program. Due to delays, the program was not fully operational for summer 2007. However, a test event on October 3, 2007, showed that the project successfully achieved the objective to develop and demonstrate how an open, Web?based interoperable automated notification system for capacity bidding can be used by aggregators for demand response. The system was effective in initiating a fully automated demand response shed at the aggregated sites. This project also demonstrated how aggregators can integrate their demand response automation systems with San Diego Gas& Electric Company?s Demand Response Automation Server and capacity bidding program.

  10. Prediction Aggregation of Remote Traffic Microwave Sensors Speed and Volume Data

    E-Print Network [OSTI]

    Havlicek, Joebob

    Prediction Aggregation of Remote Traffic Microwave Sensors Speed and Volume Data John R. Junger prediction is an important component of well developed Intelligent Trans- portation Systems and Advanced significant challenges to integrating polled data into such a predictive system. To overcome these, we present

  11. In situ imaging of ultra-fast loss of nanostructure in nanoparticle aggregates

    SciTech Connect (OSTI)

    Egan, Garth C. [Department of Materials Science, University of Maryland, College Park, Maryland 20742 (United States); Sullivan, Kyle T.; LaGrange, Thomas; Reed, Bryan W. [Physical and Life Sciences Directorate, Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94550 (United States); Zachariah, Michael R., E-mail: mrz@umd.edu [Department of Chemical and Biomolecular Engineering, University of Maryland, College Park, Maryland 20742 (United States); Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742 (United States)

    2014-02-28T23:59:59.000Z

    The word nanoparticle nominally elicits a vision of an isolated sphere; however, the vast bulk of nanoparticulate material exists in an aggregated state. This can have significant implications for applications such as combustion, catalysis, and optical excitation, where particles are exposed to high temperature and rapid heating conditions. In such environments, particles become susceptible to morphological changes which can reduce surface area, often to the detriment of functionality. Here, we report on thermally-induced coalescence which can occur in aluminum nanoparticle aggregates subjected to rapid heating (10{sup 6}10{sup 11}?K/s). Using dynamic transmission electron microscopy, we observed morphological changes in nanoparticle aggregates occurring in as little as a few nanoseconds after the onset of heating. The time-resolved probes reveal that the morphological changes initiate within 15?ns and are completed in less than 50?ns. The morphological changes were found to have a threshold temperature of about 1300??50?K, as determined by millisecond-scale experiments with a calibrated heating stage. The temperature distribution of aggregates during laser heating was modeled with various simulation approaches. The results indicate that, under rapid heating conditions, coalescence occurs at an intermediate temperature between the melting points of aluminum and the aluminum oxide shell, and proceeds rapidly once this threshold temperature is reached.

  12. Structure and rheological properties of soft-hard nanocomposites: Influence of aggregation and interfacial

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    1 Structure and rheological properties of soft-hard nanocomposites: Influence of aggregation, Composites and Hybrid Polymeric Materials 17/12/2004 Figures : 13 Tables : 4 #12;2 Abstract A study nanocomposite consists of (hard) nanosilica beads embedded in a soft polymeric matrix, which is itself formed

  13. Effect of aggregation and interfacial thermal resistance on thermal conductivity of nanocomposites and colloidal nanofluids

    E-Print Network [OSTI]

    Fish, Jacob

    and colloidal nanofluids William Evans a,b , Ravi Prasher c , Jacob Fish b , Paul Meakin d , Patrick Phelan e of aggregation and interfacial thermal resistance on the effective thermal conductivity of nanofluids and nano- composites. We found that the thermal conductivity of nanofluids and nanocomposites can be significantly

  14. Aggregate production: Fines generation during rock crushing M.S. Guimaraes a

    E-Print Network [OSTI]

    Palomino, Angelica M.

    Aggregate production: Fines generation during rock crushing M.S. Guimaraes a , J.R. Valdes b , A.M.: +1 814 865 9427; fax: +1 814 863 7304. E-mail address: amp26@psu.edu (A.M. Palomino). 0301

  15. Introduction to Small-Scale Wind Energy Systems (Including RETScreen...

    Open Energy Info (EERE)

    Introduction to Small-Scale Wind Energy Systems (Including RETScreen Case Study) (Webinar) Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Introduction to Small-Scale...

  16. Laboratory Curiosity rover ChemCam team, including Los Alamos...

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

    MEXICO, August 23, 2012-Members of the Mars Science Laboratory Curiosity rover ChemCam team, including Los Alamos National Laboratory scientists, squeezed in a little extra target...

  17. PLOT: A UNIX PROGRAM FOR INCLUDING GRAPHICS IN DOCUMENTS

    E-Print Network [OSTI]

    Curtis, Pavel

    2013-01-01T23:59:59.000Z

    simple, easy-to-read graphics language designed specificallyPROGRAM FOR INCLUDING GRAPHICS IN DOCUMENTS Pavel Curtismeanings as in the GRAFPAC graphics system. Definl. ~ tions

  18. analysis including plasma: Topics by E-print Network

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

    Assembly 2010 Space Plasmas in the Solar System, including Planetary Magnetospheres (D) Solar Variability, Cosmic Rays and Climate (D21) GEOMAGNETIC ACTIVITY AT HIGH-LATITUDE:...

  19. Energy Department Expands Gas Gouging Reporting System to Include...

    Energy Savers [EERE]

    Washington, DC - Energy Secretary Samuel W. Bodman announced today that the Department of Energy has expanded its gas gouging reporting system to include a toll-free telephone...

  20. arch dams including: Topics by E-print Network

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

    Websites Summary: insight into the gamut of shallow water waves, including kinematic, diffusion, dynamic, and gravity wavesDam-Breach Flood Wave Propagation Using...

  1. Articles which include chevron film cooling holes, and related processes

    DOE Patents [OSTI]

    Bunker, Ronald Scott; Lacy, Benjamin Paul

    2014-12-09T23:59:59.000Z

    An article is described, including an inner surface which can be exposed to a first fluid; an inlet; and an outer surface spaced from the inner surface, which can be exposed to a hotter second fluid. The article further includes at least one row or other pattern of passage holes. Each passage hole includes an inlet bore extending through the substrate from the inlet at the inner surface to a passage hole-exit proximate to the outer surface, with the inlet bore terminating in a chevron outlet adjacent the hole-exit. The chevron outlet includes a pair of wing troughs having a common surface region between them. The common surface region includes a valley which is adjacent the hole-exit; and a plateau adjacent the valley. The article can be an airfoil. Related methods for preparing the passage holes are also described.

  2. Turbomachine injection nozzle including a coolant delivery system

    DOE Patents [OSTI]

    Zuo, Baifang (Simpsonville, SC)

    2012-02-14T23:59:59.000Z

    An injection nozzle for a turbomachine includes a main body having a first end portion that extends to a second end portion defining an exterior wall having an outer surface. A plurality of fluid delivery tubes extend through the main body. Each of the plurality of fluid delivery tubes includes a first fluid inlet for receiving a first fluid, a second fluid inlet for receiving a second fluid and an outlet. The injection nozzle further includes a coolant delivery system arranged within the main body. The coolant delivery system guides a coolant along at least one of a portion of the exterior wall and around the plurality of fluid delivery tubes.

  3. [Article 1 of 7: Motivates and Includes the Consumer

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

    surges; the extra cost of these premium features can be included in the electric service contract. The Smart Grid will mitigate PQ events that originate in the transmission and...

  4. Including costs of supply chain risk in strategic sourcing decisions

    E-Print Network [OSTI]

    Jain, Avani

    2009-01-01T23:59:59.000Z

    Cost evaluations do not always include the costs associated with risks when organizations make strategic sourcing decisions. This research was conducted to establish and quantify the impact of risks and risk-related costs ...

  5. Limited Personal Use of Government Office Equipment including Information Technology

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

    2005-01-07T23:59:59.000Z

    The Order establishes requirements and assigns responsibilities for employees' limited personal use of Government resources (office equipment and other resources including information technology) within DOE, including NNSA. The Order is required to provide guidance on appropriate and inappropriate uses of Government resources. This Order was certified 04/23/2009 as accurate and continues to be relevant and appropriate for use by the Department. Certified 4-23-09. No cancellation.

  6. Hybrid powertrain system including smooth shifting automated transmission

    DOE Patents [OSTI]

    Beaty, Kevin D.; Nellums, Richard A.

    2006-10-24T23:59:59.000Z

    A powertrain system is provided that includes a prime mover and a change-gear transmission having an input, at least two gear ratios, and an output. The powertrain system also includes a power shunt configured to route power applied to the transmission by one of the input and the output to the other one of the input and the output. A transmission system and a method for facilitating shifting of a transmission system are also provided.

  7. Static light scattering and small-angle neutron scattering study on aggregated recombinant gelatin in aqueous solution

    E-Print Network [OSTI]

    Sutter, Marc

    2006-10-25T23:59:59.000Z

    Static Light Scattering and Small-Angle Neutron Scattering Study on Aggregated Recombinant Gelatin in Aqueous Solution A. Ramzi 1, M. Sutter 2, W.E. Hennink 1, W. Jiskoot 1,2 1 Department of Pharmaceutics, UIPS, Utrecht University, The Netherlands...-angle neutron scattering (SANS) for detecting aggregation of recombinant gelatin in aqueous solution and to obtain structural information about the aggregates. Recombinant Gelatin: RG-15-His 5.6Ser 25.2Pro 1.9Lys 3.7His 34.2Gly 15.5Gln 5.2Glu 11.8Asn 1.2Ala...

  8. Radiative decay of excitons in model aggregates of {pi}-conjugated oligomers

    SciTech Connect (OSTI)

    Manas, E.S.; Spano, F.C.

    1998-07-01T23:59:59.000Z

    Spontaneous emission from exciton states in an aggregate of {pi}-conjugated oligomers is studied theoretically. Each oligomer is taken as a ring of N carbon atoms and is treated using a PPP Hamiltonian. Coulombic interactions between rings are treated to first order. The radiative decay rate {gamma} from an exciton state in an aggregate of M aligned oligomers is superradiant, being M times faster than the decay rate of an isolated oligomer exciton. Inter-oligomer interactions have little effect on the exciton size and energy when the oligomer size N is large compared to the interoligomer spacing. However, when N is small, both the exciton size and energy are strongly affected by these interactions, leading to a markedly different N dependence for {gamma}.

  9. A Security Architecture for Data Aggregation and Access Control in Smart Grids

    E-Print Network [OSTI]

    Ruj, Sushmita; Stojmenovic, Ivan

    2011-01-01T23:59:59.000Z

    We propose an integrated architecture for smart grids, that supports data aggregation and access control. Data can be aggregated by home area network, building area network and neighboring area network in such a way that the privacy of customers is protected. We use homomorphic encryption technique to achieve this. The consumer data that is collected is sent to the substations where it is monitored by remote terminal units (RTU). The proposed access control mechanism gives selective access to consumer data stored in data repositories and used by different smart grid users. Users can be maintenance units, utility centers, pricing estimator units or analyzing and prediction groups. We solve this problem of access control using cryptographic technique of attribute-based encryption. RTUs and users have attributes and cryptographic keys distributed by several key distribution centers (KDC). RTUs send data encrypted under a set of attributes. Users can decrypt information provided they have valid attributes. The ac...

  10. Restructuring of colloidal aggregates in shear flow: Coupling interparticle contact models with Stokesian dynamics

    E-Print Network [OSTI]

    Seto, Ryohei; Auernhammer, Gnter K; Briesen, Heiko

    2012-01-01T23:59:59.000Z

    A method to couple interparticle contact models with Stokesian dynamics (SD) is introduced to simulate colloidal aggregates under flow conditions. The contact model mimics both the elastic and plastic behavior of the cohesive connections between particles within clusters. Owing to this, clusters can maintain their structures under low stress while restructuring or even breakage may occur under sufficiently high stress conditions. SD is an efficient method to deal with the long-ranged and many-body nature of hydrodynamic interactions for low Reynolds number flows. By using such a coupled model, the restructuring of colloidal aggregates under stepwise increasing shear flows was studied. Irreversible compaction occurs due to the increase of hydrodynamic stress on clusters. Results show that the greater part of the fractal clusters are compacted to rod-shaped packed structures, while the others show isotropic compaction.

  11. A Minimal description of morphological hierarchy in two-dimensional aggregates

    E-Print Network [OSTI]

    Tamoghna Das; T. Lookman; M. M. Bandi

    2015-02-11T23:59:59.000Z

    A dimensionless parameter $\\Lambda$ is proposed to describe a hierarchy of morphologies in two-dimensional (2D) aggregates formed due to varying competition between short-range attraction and long-range repul- sion. Structural transitions from finite non-compact to compact to percolated structures are observed in the configurations simulated by molecular dynamics at a constant temperature and density. Configurational randomness across the transition, measured by the two-body excess entropy $S_2$, exhibits data collapse with the average potential energy $\\bar{\\mathcal{E}}$ of the systems. Independent master curves are presented among $S_2$, the reduced second virial coefficient $B_2^*$ and $\\Lambda$, justifying this minimal description. This work lays out a coherent basis for the study of 2D aggregate morphologies relevant to diverse nano- and bio-processes.

  12. Investigation of the bond and tensile capacity of synthetic lightweight aggregates embedded in a cement matrix

    E-Print Network [OSTI]

    Nichols, Gisela Wagner

    1969-01-01T23:59:59.000Z

    failure, surfaoe measurements would not be necessary. 18 Table lt Aggregate Classification Roughness Coating Cleanliness Shape R-3 smooth ooated o lean S-3 SAP-3 smooth coated clean S-2 R 10B medium ooated d. irty G-3 rough uncoated dirty S-2 R... 10A smooth coated dirty S-2 R 8A S-2 R 8A medium assorted ooated ooated dirty dirty S-2 R 2b rough ooated dirty Table 2e Aggregate Properties S-2 R 10A S-2 R 10B S-2 R 8A S-2 E 2b S-3 SAP3 0-3 coaaerci el JlkN fired AkN fired AAN fired...

  13. Aggregation kinetics of stiff polyelectrolytes in the presence of multivalent salt

    E-Print Network [OSTI]

    Hossein Fazli; Ramin Golestanian

    2007-09-04T23:59:59.000Z

    Using molecular dynamics simulations, the kinetics of bundle formation for stiff polyelectrolytes such as actin is studied in the solution of multivalent salt. The dominant kinetic mode of aggregation is found to be the case of one end of one rod meeting others at right angle due to electrostatic interactions. The kinetic pathway to bundle formation involves a hierarchical structure of small clusters forming initially and then feeding into larger clusters, which is reminiscent of the flocculation dynamics of colloids. For the first few cluster sizes, the Smoluchowski formula for the time evolution of the cluster size gives a reasonable account for the results of our simulation without a single fitting parameter. The description using Smoluchowski formula provides evidence for the aggregation time scale to be controlled by diffusion, with no appreciable energy barrier to overcome.

  14. ATP-independent reversal of a membrane protein aggregate by a chloroplast SRP subunit

    SciTech Connect (OSTI)

    Jaru-Ampornpan, Peera; Shen, Kuang; Lam, Vinh Q.; Ali, Mona; Doniach, Sebastian; Jia, Tony Z.; Shan, Shu-ou (CIT); (Stanford)

    2010-07-23T23:59:59.000Z

    Membrane proteins impose enormous challenges to cellular protein homeostasis during their post-translational targeting, and they require chaperones to keep them soluble and translocation competent. Here we show that a novel targeting factor in the chloroplast signal recognition particle (cpSRP), cpSRP43, is a highly specific molecular chaperone that efficiently reverses the aggregation of its substrate proteins. In contrast to 'ATPases associated with various cellular activities' (AAA{sup +}) chaperones, cpSRP43 uses specific binding interactions with its substrate to mediate its 'disaggregase' activity. This disaggregase capability can allow targeting machineries to more effectively capture their protein substrates and emphasizes a close connection between protein folding and trafficking processes. Moreover, cpSRP43 provides the first example to our knowledge of an ATP-independent disaggregase and shows that efficient reversal of protein aggregation can be attained by specific binding interactions between a chaperone and its substrate.

  15. Solar Energy Education. Renewable energy: a background text. [Includes glossary

    SciTech Connect (OSTI)

    Not Available

    1985-01-01T23:59:59.000Z

    Some of the most common forms of renewable energy are presented in this textbook for students. The topics include solar energy, wind power hydroelectric power, biomass ocean thermal energy, and tidal and geothermal energy. The main emphasis of the text is on the sun and the solar energy that it yields. Discussions on the sun's composition and the relationship between the earth, sun and atmosphere are provided. Insolation, active and passive solar systems, and solar collectors are the subtopics included under solar energy. (BCS)

  16. Methods of producing adsorption media including a metal oxide

    DOE Patents [OSTI]

    Mann, Nicholas R; Tranter, Troy J

    2014-03-04T23:59:59.000Z

    Methods of producing a metal oxide are disclosed. The method comprises dissolving a metal salt in a reaction solvent to form a metal salt/reaction solvent solution. The metal salt is converted to a metal oxide and a caustic solution is added to the metal oxide/reaction solvent solution to adjust the pH of the metal oxide/reaction solvent solution to less than approximately 7.0. The metal oxide is precipitated and recovered. A method of producing adsorption media including the metal oxide is also disclosed, as is a precursor of an active component including particles of a metal oxide.

  17. Metal vapor laser including hot electrodes and integral wick

    DOE Patents [OSTI]

    Ault, Earl R. (Livermore, CA); Alger, Terry W. (Tracy, CA)

    1995-01-01T23:59:59.000Z

    A metal vapor laser, specifically one utilizing copper vapor, is disclosed herein. This laser utilizes a plasma tube assembly including a thermally insulated plasma tube containing a specific metal, e.g., copper, and a buffer gas therein. The laser also utilizes means including hot electrodes located at opposite ends of the plasma tube for electrically exciting the metal vapor and heating its interior to a sufficiently high temperature to cause the metal contained therein to vaporize and for subjecting the vapor to an electrical discharge excitation in order to lase. The laser also utilizes external wicking arrangements, that is, wicking arrangements located outside the plasma tube.

  18. Metal vapor laser including hot electrodes and integral wick

    DOE Patents [OSTI]

    Ault, E.R.; Alger, T.W.

    1995-03-07T23:59:59.000Z

    A metal vapor laser, specifically one utilizing copper vapor, is disclosed herein. This laser utilizes a plasma tube assembly including a thermally insulated plasma tube containing a specific metal, e.g., copper, and a buffer gas therein. The laser also utilizes means including hot electrodes located at opposite ends of the plasma tube for electrically exciting the metal vapor and heating its interior to a sufficiently high temperature to cause the metal contained therein to vaporize and for subjecting the vapor to an electrical discharge excitation in order to lase. The laser also utilizes external wicking arrangements, that is, wicking arrangements located outside the plasma tube. 5 figs.

  19. Watson Library enhancements to include new service desk

    E-Print Network [OSTI]

    2008-01-01T23:59:59.000Z

    12/5/13 KU Libraries News: Watson Library enhancements to include new service desk www.lib.ku.edu/news/newservicedesk.shtml 1/1 Contact Us The University of Kansas Libraries Lawrence, KS 66045 (785) 864-8983 Copyright 2013 by the University... of Kansas Watson Library enhancements to include new service desk The University of Kansas Libraries is adding a new service desk to Watson Library to enhance the user experience and draw attention to new and existing resources. The desk, which...

  20. Thin film solar cell including a spatially modulated intrinsic layer

    DOE Patents [OSTI]

    Guha, Subhendu (Troy, MI); Yang, Chi-Chung (Troy, MI); Ovshinsky, Stanford R. (Bloomfield Hills, MI)

    1989-03-28T23:59:59.000Z

    One or more thin film solar cells in which the intrinsic layer of substantially amorphous semiconductor alloy material thereof includes at least a first band gap portion and a narrower band gap portion. The band gap of the intrinsic layer is spatially graded through a portion of the bulk thickness, said graded portion including a region removed from the intrinsic layer-dopant layer interfaces. The band gap of the intrinsic layer is always less than the band gap of the doped layers. The gradation of the intrinsic layer is effected such that the open circuit voltage and/or the fill factor of the one or plural solar cell structure is enhanced.

  1. Iron-reducing bacteria accumulate ferric oxyhydroxide nanoparticle aggregates that may support planktonic growth

    SciTech Connect (OSTI)

    Luef, Birgit; Fakra, Sirine C.; Csencsits, Roseann; Wrighton, Kelly C.; Williams, Kenneth H.; Wilkins, Michael J.; Downing, Kenneth H.; Long, Philip E.; Comolli, Luis R.; Banfield, Jillian F.

    2013-02-04T23:59:59.000Z

    Iron-reducing bacteria (FeRB) play key roles in anaerobic metal and carbon cycling and carry out biogeochemical transformations that can be harnessed for environmental bioremediation. A subset of FeRB require direct contact with Fe(III) bearing minerals for dissimilatory growth, yet these bacteria must move between mineral particles. Further, they proliferate in planktonic consortia during biostimulation experiments. Thus, a key question is how such organisms can sustain growth under these conditions. Here we characterized planktonic microbial communities sampled from an aquifer in Rifle, Colorado, USA close to the peak of iron reduction following in situ acetate amendment. Samples were cryo-plunged on site and subsequently examined using correlated 2- and 3- dimensional cryogenic transmission electron microscopy (cryo-TEM) and scanning transmission X-ray microscopy (STXM). Most cells had their outer membranes decorated with up to 150 nm diameter aggregates composed of a few nm wide amorphous, Fe-rich nanoparticles. Fluorescent in situ hybridization of lineage-specific probes applied to rRNA of cells subsequently imaged via cryo-TEM identified Geobacter spp., a well studied group of FeRB. STXM results at the Fe L2,3 absorption edges indicate that nanoparticle aggregates contain a variable mixture of Fe(II)-Fe(III), and are generally enriched in Fe(III). Geobacter bemidjiensis cultivated anaerobically in the laboratory on acetate and hydrous ferric oxyhydroxides also accumulated mixed valence nanoparticle aggregates. In field-collected samples, FeRB with a wide variety of morphologies were associated with nano-aggregates, indicating that cell-surface Fe(III) accumulation may be a general mechanism by which FeRB can grow while in planktonic suspension.

  2. Laser Control of Dissipative Two-Exciton Dynamics in Molecular Aggregates

    E-Print Network [OSTI]

    Yun-an Yan; Oliver Khn

    2012-07-09T23:59:59.000Z

    There are two types of two-photon transitions in molecular aggregates, that is, non-local excitations of two monomers and local double excitations to some higher excited intra-monomer electronic state. As a consequence of the inter-monomer Coulomb interaction these different excitation states are coupled to each other. Higher excited intra-monomer states are rather short-lived due to efficient internal conversion of electronic into vibrational energy. Combining both processes leads to the annihilation of an electronic excitation state, which is a major loss channel for establishing high excitation densities in molecular aggregates. Applying theoretical pulse optimization techniques to a Frenkel exciton model it is shown that the dynamics of two-exciton states in linear aggregates (dimer to tetramer) can be influenced by ultrafast shaped laser pulses. In particular, it is studied to what extent the decay of the two-exciton population by inter-band transitions can be transiently suppressed. Intra-band dynamics is described by a dissipative hierarchy equation approach, which takes into account strong exciton-vibrational coupling in the non-Markovian regime.

  3. The 10 micron amorphous silicate feature of fractal aggregates and compact particles with complex shapes

    E-Print Network [OSTI]

    M. Min; C. Dominik; J. W. Hovenier; A. de Koter; L. B. F. M. Waters

    2005-09-14T23:59:59.000Z

    We model the 10 micron absorption spectra of nonspherical particles composed of amorphous silicate. We consider two classes of particles, compact ones and fractal aggregates composed of homogeneous spheres. For the compact particles we consider Gaussian random spheres with various degrees of non-sphericity. For the fractal aggregates we compute the absorption spectra for various fractal dimensions. The 10 micron spectra are computed for ensembles of these particles in random orientation using the well-known Discrete Dipole Approximation. We compare our results to spectra obtained when using volume equivalent homogeneous spheres and to those computed using a porous sphere approximation. We conclude that, in general, nonspherical particles show a spectral signature that is similar to that of homogeneous spheres with a smaller material volume. This effect is overestimated when approximating the particles by porous spheres with the same volume filling fraction. For aggregates with fractal dimensions typically predicted for cosmic dust, we show that the spectral signature characteristic of very small homogeneous spheres (with a volume equivalent radius r_Vsilicate emission.

  4. Including Blind Students in Computer Science Through Access to Graphs

    E-Print Network [OSTI]

    Young, R. Michael

    Including Blind Students in Computer Science Through Access to Graphs Suzanne Balik, Sean Mealin SKetching tool, GSK, to provide blind and sighted people with a means to create, examine, and share graphs (node-link diagrams) in real-time. GSK proved very effective for one blind computer science student

  5. Bayesian hierarchical reconstruction of protein profiles including a digestion model

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    Bayesian hierarchical reconstruction of protein profiles including a digestion model Pierre to recover the protein biomarkers content in a robust way. We will focus on the digestion step since and each branch to a molecular processing such as digestion, ionisation and LC-MS separation

  6. Biomass Potentials from California Forest and Shrublands Including Fuel

    E-Print Network [OSTI]

    Biomass Potentials from California Forest and Shrublands Including Fuel Reduction Potentials-04-004 February 2005 Revised: October 2005 Arnold Schwarzenegger, Governor, State of California #12;Biomass Tiangco, CEC Bryan M. Jenkins, University of California #12;Biomass Potentials from California Forest

  7. Optimal Energy Management Strategy including Battery Health through Thermal

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    Optimal Energy Management Strategy including Battery Health through Thermal Management for Hybrid: Energy management strategy, Plug-in hybrid electric vehicles, Li-ion battery aging, thermal management, Pontryagin's Minimum Principle. 1. INTRODUCTION The interest for energy management strategy (EMS) of Hybrid

  8. Area of cooperation includes: Joint research and development on

    E-Print Network [OSTI]

    Buyya, Rajkumar

    Technologies August 2, 2006: HCL Technologies Ltd (HCL), India's leading global IT services company, has signed projects that are using this technology currently such as BioGrid in Japan, National Grid Service in UKArea of cooperation includes: · Joint research and development on Grid computing technologies

  9. Energy Transitions: A Systems Approach Including Marcellus Shale Gas Development

    E-Print Network [OSTI]

    Walter, M.Todd

    Energy Transitions: A Systems Approach Including Marcellus Shale Gas Development A Report Engineering) W. VA #12;Energy Transitions: A Systems Approach August 2011 version Page 2 Energy Transitions sources globally, some very strong short-term drivers of energy transitions reflect rising concerns over

  10. 1 INTRODUCTION A typical flexible pavement system includes four

    E-Print Network [OSTI]

    Zornberg, Jorge G.

    1 INTRODUCTION A typical flexible pavement system includes four distinct layers: asphalt concrete course in order to reduce costs or to minimize capil- lary action under the pavement. Figure 1: Cross-section of flexible pavement system (Muench 2006) Pavement distress may occur due to either traffic or environmental

  11. SAFETY AND HEALTH PROGRAM Including the Chemical Hygiene Plan

    E-Print Network [OSTI]

    Evans, Paul G.

    SAFETY AND HEALTH PROGRAM Including the Chemical Hygiene Plan Wisconsin Center for Applied, Technical Staff & Chemical Hygiene Officer kakupcho@wisc.edu 262-2982 Lab Facility Website http..........................................................................................................3 CHEMICAL HYGIENE PLAN III. Work-site Analysis and Hazard Identification 3.1 Hazardous Chemical

  12. HTS Conductor Design Issues Including Quench and Stability,

    E-Print Network [OSTI]

    HTS Conductor Design Issues Including Quench and Stability, AC Losses, and Fault Currents M. J objective and technical approach The purpose of this collaborative R&D project is an investigation of HTS conductor design optimization with emphasis on stability and protection issues for YBCO wires and coils

  13. Free Energy Efficiency Kit includes CFL light bulbs,

    E-Print Network [OSTI]

    Rose, Annkatrin

    Free Energy Efficiency Kit Kit includes CFL light bulbs, spray foam, low-flow shower head, and more for discounted energy assessments. FREE HOME ENERGY EFFICIENCY SEMINAR N e w R i ver L i g ht & Pow e r a n d W! Building Science 101 Presentation BPI Certified Building Professionals will present home energy efficiency

  14. DO NOT INCLUDE: flatten cardboard staples, tape & envelope windows ok

    E-Print Network [OSTI]

    Wolfe, Patrick J.

    / bottles Metal items other than cans/foil Napkins Paper towels Plastic bags Plastic films Plastic utensilsDO NOT INCLUDE: flatten cardboard staples, tape & envelope windows ok Aerosol cans Books Bottle, PDAs, inkjet cartridges, CFL bulbs (cushioned, sealed in plastic) computers, printers, printer

  15. cDNA encoding a polypeptide including a hevein sequence

    DOE Patents [OSTI]

    Raikhel, N.V.; Broekaert, W.F.; Namhai Chua; Kush, A.

    1993-02-16T23:59:59.000Z

    A cDNA clone (HEV1) encoding hevein was isolated via polymerase chain reaction (PCR) using mixed oligonucleotides corresponding to two regions of hevein as primers and a Hevea brasiliensis latex cDNA library as a template. HEV1 is 1,018 nucleotides long and includes an open reading frame of 204 amino acids.

  16. Perhaps federal research grants can include infrastructure costs.

    E-Print Network [OSTI]

    Sur, Mriganka

    Perhaps federal research grants can include infrastructure costs. There are signs to find favour in China, a country beset by similar problems. The particular structure of Indian science and healthystart-uppackages. The government could contribute to these costs. 487 NATURE|Vol 436|28 July 2005

  17. Study of the aggregation behaviour of egg yolk lecithin/bile salt mixtures by increasing the ionic strength

    E-Print Network [OSTI]

    Madenci, Dilek

    2009-11-25T23:59:59.000Z

    This thesis describes a study of the aggregational behaviour of egg yolk lecithin (EYL), a natural lecithin, and bile salt mixtures especially with respect to an increase of the ionic strength of the solvent. Mixtures ...

  18. Glass softening, crystallization, and vaporization of nano-aggregates of Amorphous Solid Water: Fast Scanning Calorimetry studies

    E-Print Network [OSTI]

    Deepanjan Bhattacharya; Liam OReilly; Vlad Sadtchenko

    2014-10-31T23:59:59.000Z

    Fast scanning calorimetry (FSC) was employed to investigate glass softening dynamics in amorphous solid water (ASW) nano-aggregates with thicknesses ranging from 2 to 20 nm. ASW nano-aggregates were prepared by vapor-deposition on the surface of a tungsten filament near 141 K and then heated at a rate of 100 kK/s. The resulting thermogram complex endo- and exothermal features were analyzed using a simple model. The results of the analysis show that glass softening of ASW nano-aggregates takes place at 160 K and vaporization of ASW nano-aggregates can take place at temperatures as low as 185 K. The results of these studies are discussed in conjunction with results of past studies of glass softening dynamics in water in various confining geometries.

  19. Performance-based approach to evaluate alkali-silica reaction potential of aggregate and concrete using dilatometer method

    E-Print Network [OSTI]

    Shon, Chang Seon

    2009-05-15T23:59:59.000Z

    The undesirable expansion of concrete because of a reaction between alkalis and certain type of reactive siliceous aggregates, known as alkali-silica reactivity (ASR), continues to be a major problem across the entire ...

  20. DTE Energy Technologies With Detroit Edison Co. and Kinectrics Inc.: Distributed Resources Aggregation Modeling and Field Configuration Testing

    SciTech Connect (OSTI)

    Not Available

    2003-10-01T23:59:59.000Z

    Summarizes the work of DTE Energy Technologies, Detroit Edison, and Kinectrics, under contract to DOE's Distribution and Interconnection R&D, to develop distributed resources aggregation modeling and field configuration testing.

  1. Dietary supplementation of marine algae and the modification of thrombocyte aggregation parameters in avian pulmonary hypertension syndrome

    E-Print Network [OSTI]

    Carpenter, Amy Renee

    1999-01-01T23:59:59.000Z

    Studies were conducted to investigate the effects of dietary supplementation with marine algae (MA) as a source of omega-3 fatty acids on thrombocyte aggregation and the incidence of pulmonary hypertension syndrome (PHS) in the broiler chicken...

  2. Investigating the aggregation of ?-amyloid peptide (A???) and its interactions with lipid bilayers using advanced microscopy techniques

    E-Print Network [OSTI]

    Mari, Meropi

    2014-06-30T23:59:59.000Z

    that there are various different methods, such as AFM, CARS microscopy and Raman spectroscopy as well as neutron scattering that are capable of fast imaging. Overall, all these techniques contributed in a complementary study of A??? aggregation states under extreme...

  3. Computational Modeling of an MRI Guided Drug Delivery System Based on Magnetic Nanoparticle Aggregations for the Navigation of Paramagnetic Nanocapsules

    E-Print Network [OSTI]

    N. K. Lampropoulos; E. G. Karvelas; I. E. Sarris

    2015-04-14T23:59:59.000Z

    A computational method for magnetically guided drug delivery is presented and the results are compared for the aggregation process of magnetic particles within a fluid environment. The model is developed for the simulation of the aggregation patterns of magnetic nanoparticles under the influence of MRI magnetic coils. A novel approach for the calculation of the drag coefficient of aggregates is presented. The comparison against experimental and numerical results from the literature is showed that the proposed method predicts well the aggregations in respect to their size and pattern dependance, on the concentration and the strength of the magnetic field, as well as their velocity when particles are driven through the fluid by magnetic gradients.

  4. Unique Selectivities. Pall's versatile line of media includes the powerful HyperCelTM sorbent family

    E-Print Network [OSTI]

    Lebendiker, Mario

    for those working in drug discovery, development, and manufacturing. Pall's chromatography products feature membrane Aggregate polishing from MAb filter plates, Acrodisc feedstream syringe filters *In addition from research, to process development and scale up, to full-scale process manufacturing. Fully scalable

  5. Cathodoluminescence microscopy and petrographic image analysis of aggregates in concrete pavements affected by alkali-silica reaction

    SciTech Connect (OSTI)

    Stastna, A., E-mail: astastna@gmail.com [Institute of Geochemistry, Mineralogy and Mineral Resources, Faculty of Science, Charles University in Prague, Albertov 6, 128 43 Praha 2 (Czech Republic); Sachlova, S.; Pertold, Z.; Prikryl, R. [Institute of Geochemistry, Mineralogy and Mineral Resources, Faculty of Science, Charles University in Prague, Albertov 6, 128 43 Praha 2 (Czech Republic); Leichmann, J. [Department of Geological Sciences, Faculty of Science, Masaryk University in Brno, Kotlarska 267/2, 611 37 Brno (Czech Republic)

    2012-03-15T23:59:59.000Z

    Various microscopic techniques (cathodoluminescence, polarizing and electron microscopy) were combined with image analysis with the aim to determine a) the modal composition and degradation features within concrete, and b) the petrographic characteristics and the geological types (rocks, and their provenance) of the aggregates. Concrete samples were taken from five different portions of Highway Nos. D1, D11, and D5 (the Czech Republic). Coarse and fine aggregates were found to be primarily composed of volcanic, plutonic, metamorphic and sedimentary rocks, as well as of quartz and feldspar aggregates of variable origins. The alkali-silica reaction was observed to be the main degradation mechanism, based upon the presence of microcracks and alkali-silica gels in the concrete. Use of cathodoluminescence enabled the identification of the source materials of the quartz aggregates, based upon their CL characteristics (i.e., color, intensity, microfractures, deformation, and zoning), which is difficult to distinguish only employing polarizing and electron microscopy. - Highlights: Black-Right-Pointing-Pointer ASR in concrete pavements on the Highways Nos. D1, D5 and D11 (Czech Republic). Black-Right-Pointing-Pointer Cathodoluminescence was combined with various microscopic techniques and image analysis. Black-Right-Pointing-Pointer ASR was attributed to aggregates. Black-Right-Pointing-Pointer Source materials of aggregates were identified based on cathodoluminescence characteristics. Black-Right-Pointing-Pointer Quartz comes from different volcanic, plutonic and metamorphic parent rocks.

  6. Multi-processor including data flow accelerator module

    DOE Patents [OSTI]

    Davidson, George S. (Albuquerque, NM); Pierce, Paul E. (Albuquerque, NM)

    1990-01-01T23:59:59.000Z

    An accelerator module for a data flow computer includes an intelligent memory. The module is added to a multiprocessor arrangement and uses a shared tagged memory architecture in the data flow computer. The intelligent memory module assigns locations for holding data values in correspondence with arcs leading to a node in a data dependency graph. Each primitive computation is associated with a corresponding memory cell, including a number of slots for operands needed to execute a primitive computation, a primitive identifying pointer, and linking slots for distributing the result of the cell computation to other cells requiring that result as an operand. Circuitry is provided for utilizing tag bits to determine automatically when all operands required by a processor are available and for scheduling the primitive for execution in a queue. Each memory cell of the module may be associated with any of the primitives, and the particular primitive to be executed by the processor associated with the cell is identified by providing an index, such as the cell number for the primitive, to the primitive lookup table of starting addresses. The module thus serves to perform functions previously performed by a number of sections of data flow architectures and coexists with conventional shared memory therein. A multiprocessing system including the module operates in a hybrid mode, wherein the same processing modules are used to perform some processing in a sequential mode, under immediate control of an operating system, while performing other processing in a data flow mode.

  7. Conversion of geothermal waste to commercial products including silica

    DOE Patents [OSTI]

    Premuzic, Eugene T. (East Moriches, NY); Lin, Mow S. (Rocky Point, NY)

    2003-01-01T23:59:59.000Z

    A process for the treatment of geothermal residue includes contacting the pigmented amorphous silica-containing component with a depigmenting reagent one or more times to depigment the silica and produce a mixture containing depigmented amorphous silica and depigmenting reagent containing pigment material; separating the depigmented amorphous silica and from the depigmenting reagent to yield depigmented amorphous silica. Before or after the depigmenting contacting, the geothermal residue or depigmented silica can be treated with a metal solubilizing agent to produce another mixture containing pigmented or unpigmented amorphous silica-containing component and a solubilized metal-containing component; separating these components from each other to produce an amorphous silica product substantially devoid of metals and at least partially devoid of pigment. The amorphous silica product can be neutralized and thereafter dried at a temperature from about 25.degree. C. to 300.degree. C. The morphology of the silica product can be varied through the process conditions including sequence contacting steps, pH of depigmenting reagent, neutralization and drying conditions to tailor the amorphous silica for commercial use in products including filler for paint, paper, rubber and polymers, and chromatographic material.

  8. Composite armor, armor system and vehicle including armor system

    DOE Patents [OSTI]

    Chu, Henry S.; Jones, Warren F.; Lacy, Jeffrey M.; Thinnes, Gary L.

    2013-01-01T23:59:59.000Z

    Composite armor panels are disclosed. Each panel comprises a plurality of functional layers comprising at least an outermost layer, an intermediate layer and a base layer. An armor system incorporating armor panels is also disclosed. Armor panels are mounted on carriages movably secured to adjacent rails of a rail system. Each panel may be moved on its associated rail and into partially overlapping relationship with another panel on an adjacent rail for protection against incoming ordnance from various directions. The rail system may be configured as at least a part of a ring, and be disposed about a hatch on a vehicle. Vehicles including an armor system are also disclosed.

  9. cDNA encoding a polypeptide including a hevein sequence

    DOE Patents [OSTI]

    Raikhel, Natasha V. (Okemos, MI); Broekaert, Willem F. (Dilbeek, BE); Chua, Nam-Hai (Scarsdale, NY); Kush, Anil (New York, NY)

    1993-02-16T23:59:59.000Z

    A cDNA clone (HEV1) encoding hevein was isolated via polymerase chain reaction (PCR) using mixed oligonucleotides corresponding to two regions of hevein as primers and a Hevea brasiliensis latex cDNA library as a template. HEV1 is 1018 nucleotides long and includes an open reading frame of 204 amino acids. The deduced amino acid sequence contains a pu GOVERNMENT RIGHTS This application was funded under Department of Energy Contract DE-AC02-76ER01338. The U.S. Government has certain rights under this application and any patent issuing thereon.

  10. Composite material including nanocrystals and methods of making

    DOE Patents [OSTI]

    Bawendi, Moungi G.; Sundar, Vikram C.

    2010-04-06T23:59:59.000Z

    Temperature-sensing compositions can include an inorganic material, such as a semiconductor nanocrystal. The nanocrystal can be a dependable and accurate indicator of temperature. The intensity of emission of the nanocrystal varies with temperature and can be highly sensitive to surface temperature. The nanocrystals can be processed with a binder to form a matrix, which can be varied by altering the chemical nature of the surface of the nanocrystal. A nanocrystal with a compatibilizing outer layer can be incorporated into a coating formulation and retain its temperature sensitive emissive properties.

  11. A coke oven model including thermal decomposition kinetics of tar

    SciTech Connect (OSTI)

    Munekane, Fuminori; Yamaguchi, Yukio [Mitsubishi Chemical Corp., Yokohama (Japan); Tanioka, Seiichi [Mitsubishi Chemical Corp., Sakaide (Japan)

    1997-12-31T23:59:59.000Z

    A new one-dimensional coke oven model has been developed for simulating the amount and the characteristics of by-products such as tar and gas as well as coke. This model consists of both heat transfer and chemical kinetics including thermal decomposition of coal and tar. The chemical kinetics constants are obtained by estimation based on the results of experiments conducted to investigate the thermal decomposition of both coal and tar. The calculation results using the new model are in good agreement with experimental ones.

  12. Numerical evaluation of propeller noise, including non-linear effects

    E-Print Network [OSTI]

    White, Terence Alan

    1985-01-01T23:59:59.000Z

    University Chairman of Advisor y Commitee: Dr. Kenneth Korkan Using the transonic flow field(s) generated by the NASPROP-E computer code for an eight blade SR3-series propeller, a method is investigated to calculate the total noise values and frequency... in three dimensions, and the influence of the damping on the calculated noise values is investigated. Since the flow field includes the wave systems near the blade surface, the quadr upole noise sour ce term is accounted for as are the monopole...

  13. What To Include In The Whistleblower Complaint? | National Nuclear Security

    National Nuclear Security Administration (NNSA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOn AprilA Approved: 5-13-14Russian Nuclear Warheads ArrivesAdministration To Include In

  14. Community Assessment Tool for Public Health Emergencies Including Pandemic Influenza

    SciTech Connect (OSTI)

    ORAU's Oak Ridge Institute for Science Education (HCTT-CHE)

    2011-04-14T23:59:59.000Z

    The Community Assessment Tool (CAT) for Public Health Emergencies Including Pandemic Influenza (hereafter referred to as the CAT) was developed as a result of feedback received from several communities. These communities participated in workshops focused on influenza pandemic planning and response. The 2008 through 2011 workshops were sponsored by the Centers for Disease Control and Prevention (CDC). Feedback during those workshops indicated the need for a tool that a community can use to assess its readiness for a disaster - readiness from a total healthcare perspective, not just hospitals, but the whole healthcare system. The CAT intends to do just that - help strengthen existing preparedness plans by allowing the healthcare system and other agencies to work together during an influenza pandemic. It helps reveal each core agency partners (sectors) capabilities and resources, and highlights cases of the same vendors being used for resource supplies (e.g., personal protective equipment [PPE] and oxygen) by the partners (e.g., public health departments, clinics, or hospitals). The CAT also addresses gaps in the community's capabilities or potential shortages in resources. This tool has been reviewed by a variety of key subject matter experts from federal, state, and local agencies and organizations. It also has been piloted with various communities that consist of different population sizes, to include large urban to small rural communities.

  15. Solving The High Energy Evolution Equation Including Running Coupling Corrections

    E-Print Network [OSTI]

    Javier L. Albacete; Yuri V. Kovchegov

    2007-06-22T23:59:59.000Z

    We study the solution of the nonlinear BK evolution equation with the recently calculated running coupling corrections [hep-ph/0609105, hep-ph/0609090]. Performing a numerical solution we confirm the earlier result of [hep-ph/0408216] that the high energy evolution with the running coupling leads to a universal scaling behavior for the dipole scattering amplitude. The running coupling corrections calculated recently significantly change the shape of the scaling function as compared to the fixed coupling case leading to a considerable increase in the anomalous dimension and to a slow-down of the evolution with rapidity. The difference between the two recent calculations is due to an extra contribution to the evolution kernel, referred to as the subtraction term, which arises when running coupling corrections are included. These subtraction terms were neglected in both recent calculations. We evaluate numerically the subtraction terms for both calculations, and demonstrate that when the subtraction terms are added back to the evolution kernels obtained in the two works the resulting dipole amplitudes agree with each other! We then use the complete running coupling kernel including the subtraction term to find the numerical solution of the resulting full non-linear evolution equation with the running coupling corrections. Again the scaling regime is recovered at very large rapidity.

  16. Cogeneration handbook for the petroleum refining industry. [Glossary included

    SciTech Connect (OSTI)

    Not Available

    1984-02-01T23:59:59.000Z

    This Handbook deals only with industrial cogeneration, that is, simultaneous production of both heat and electricity at the industrial plant site. The cogenerator has the option of either selling all cogenerated power to the utility while simultaneously purchasing power to satisfy his plant demand, or directly supplying the plant demand with cogenerated power, thus displacing utility-supplied power. This Handbook provides the refinery plant manager or company energy coordinator with a framework for making a preliminary assessment of the feasibility and viability of cogeneration at a particular plant. The handbook is intended to provide an understanding of the potential of several standardized cogeneration systems, as well as their limitations. However, because the decision to cogenerate is very site specific, the handbook cannot provide all of the answers. It does attempt, however, to bring to light the major issues that should be addressed in the decision-making process. The decision of whether to cogenerate involves several considerations, including technical, economic, environmental, legal, and regulatory issues. Each of these issues is addressed separately in this handbook. In addition, a chapter is included on preparing a three-phase work statement, which is needed to guide the design of a cogeneration system. 39 figures, 37 tables.

  17. Pulse transmission transmitter including a higher order time derivate filter

    DOE Patents [OSTI]

    Dress Jr., William B.; Smith, Stephen F.

    2003-09-23T23:59:59.000Z

    Systems and methods for pulse-transmission low-power communication modes are disclosed. A pulse transmission transmitter includes: a clock; a pseudorandom polynomial generator coupled to the clock, the pseudorandom polynomial generator having a polynomial load input; an exclusive-OR gate coupled to the pseudorandom polynomial generator, the exclusive-OR gate having a serial data input; a programmable delay circuit coupled to both the clock and the exclusive-OR gate; a pulse generator coupled to the programmable delay circuit; and a higher order time derivative filter coupled to the pulse generator. The systems and methods significantly reduce lower-frequency emissions from pulse transmission spread-spectrum communication modes, which reduces potentially harmful interference to existing radio frequency services and users and also simultaneously permit transmission of multiple data bits by utilizing specific pulse shapes.

  18. Hydraulic engine valve actuation system including independent feedback control

    DOE Patents [OSTI]

    Marriott, Craig D

    2013-06-04T23:59:59.000Z

    A hydraulic valve actuation assembly may include a housing, a piston, a supply control valve, a closing control valve, and an opening control valve. The housing may define a first fluid chamber, a second fluid chamber, and a third fluid chamber. The piston may be axially secured to an engine valve and located within the first, second and third fluid chambers. The supply control valve may control a hydraulic fluid supply to the piston. The closing control valve may be located between the supply control valve and the second fluid chamber and may control fluid flow from the second fluid chamber to the supply control valve. The opening control valve may be located between the supply control valve and the second fluid chamber and may control fluid flow from the supply control valve to the second fluid chamber.

  19. Fuel cell repeater unit including frame and separator plate

    DOE Patents [OSTI]

    Yamanis, Jean; Hawkes, Justin R; Chiapetta, Jr., Louis; Bird, Connie E; Sun, Ellen Y; Croteau, Paul F

    2013-11-05T23:59:59.000Z

    An example fuel cell repeater includes a separator plate and a frame establishing at least a portion of a flow path that is operative to communicate fuel to or from at least one fuel cell held by the frame relative to the separator plate. The flow path has a perimeter and any fuel within the perimeter flow across the at least one fuel cell in a first direction. The separator plate, the frame, or both establish at least one conduit positioned outside the flow path perimeter. The conduit is outside of the flow path perimeter and is configured to direct flow in a second, different direction. The conduit is fluidly coupled with the flow path.

  20. Copper laser modulator driving assembly including a magnetic compression laser

    DOE Patents [OSTI]

    Cook, Edward G. (Livermore, CA); Birx, Daniel L. (Oakley, CA); Ball, Don G. (Livermore, CA)

    1994-01-01T23:59:59.000Z

    A laser modulator (10) having a low voltage assembly (12) with a plurality of low voltage modules (14) with first stage magnetic compression circuits (20) and magnetic assist inductors (28) with a common core (91), such that timing of the first stage magnetic switches (30b) is thereby synchronized. A bipolar second stage of magnetic compression (42) is coupled to the low voltage modules (14) through a bipolar pulse transformer (36) and a third stage of magnetic compression (44) is directly coupled to the second stage of magnetic compression (42). The low voltage assembly (12) includes pressurized boxes (117) for improving voltage standoff between the primary winding assemblies (34) and secondary winding (40) contained therein.

  1. Electra-optical device including a nitrogen containing electrolyte

    DOE Patents [OSTI]

    Bates, John B. (Oak Ridge, TN); Dudney, Nancy J. (Knoxville, TN); Gruzalski, Greg R. (Oak Ridge, TN); Luck, Christopher F. (Knoxville, TN)

    1995-01-01T23:59:59.000Z

    Described is a thin-film battery, especially a thin-film microbattery, and a method for making same having application as a backup or primary integrated power source for electronic devices. The battery includes a novel electrolyte which is electrochemically stable and does not react with the lithium anode and a novel vanadium oxide cathode Configured as a microbattery, the battery can be fabricated directly onto a semiconductor chip, onto the semiconductor die or onto any portion of the chip carrier. The battery can be fabricated to any specified size or shape to meet the requirements of a particular application. The battery is fabricated of solid state materials and is capable of operation between -15.degree. C. and 150.degree. C.

  2. Electra-optical device including a nitrogen containing electrolyte

    DOE Patents [OSTI]

    Bates, J.B.; Dudney, N.J.; Gruzalski, G.R.; Luck, C.F.

    1995-10-03T23:59:59.000Z

    Described is a thin-film battery, especially a thin-film microbattery, and a method for making same having application as a backup or primary integrated power source for electronic devices. The battery includes a novel electrolyte which is electrochemically stable and does not react with the lithium anode and a novel vanadium oxide cathode. Configured as a microbattery, the battery can be fabricated directly onto a semiconductor chip, onto the semiconductor die or onto any portion of the chip carrier. The battery can be fabricated to any specified size or shape to meet the requirements of a particular application. The battery is fabricated of solid state materials and is capable of operation between {minus}15 C and 150 C.

  3. Including stereoscopic information in the reconstruction of coronal magnetic fields

    E-Print Network [OSTI]

    T. Wiegelmann; T. Neukirch

    2008-01-23T23:59:59.000Z

    We present a method to include stereoscopic information about the three dimensional structure of flux tubes into the reconstruction of the coronal magnetic field. Due to the low plasma beta in the corona we can assume a force free magnetic field, with the current density parallel to the magnetic field lines. Here we use linear force free fields for simplicity. The method uses the line of sight magnetic field on the photosphere as observational input. The value of $\\alpha$ is determined iteratively by comparing the reconstructed magnetic field with the observed structures. The final configuration is the optimal linear force solution constrained by both the photospheric magnetogram and the observed plasma structures. As an example we apply our method to SOHO MDI/EIT data of an active region. In the future it is planned to apply the method to analyse data from the SECCHI instrument aboard the STEREO mission.

  4. Improving Planck calibration by including frequency-dependent relativistic corrections

    E-Print Network [OSTI]

    Quartin, Miguel

    2015-01-01T23:59:59.000Z

    The Planck satellite detectors are calibrated in the 2015 release using the "orbital dipole", which is the time-dependent dipole generated by the Doppler effect due to the motion of the satellite around the Sun. Such an effect has also relativistic time-dependent corrections of relative magnitude 10^(-3), due to coupling with the "solar dipole" (the motion of the Sun compared to the CMB rest frame), which are included in the data calibration by the Planck collaboration. We point out that such corrections are subject to a frequency-dependent multiplicative factor. This factor differs from unity especially at the highest frequencies, relevant for the HFI instrument. Since currently Planck calibration errors are dominated by systematics, to the point that polarization data is currently unreliable at large scales, such a correction can in principle be highly relevant for future data releases.

  5. Protoplanetary disks including radiative feedback from accreting planets

    E-Print Network [OSTI]

    Montesinos, Matias; Perez, Sebastian; Baruteau, Clement; Casassus, Simon

    2015-01-01T23:59:59.000Z

    While recent observational progress is converging on the detection of compact regions of thermal emission due to embedded protoplanets, further theoretical predictions are needed to understand the response of a protoplanetary disk to the planet formation radiative feedback. This is particularly important to make predictions for the observability of circumplanetary regions. In this work we use 2D hydrodynamical simulations to examine the evolution of a viscous protoplanetary disk in which a luminous Jupiter-mass planet is embedded. We use an energy equation which includes the radiative heating of the planet as an additional mechanism for planet formation feedback. Several models are computed for planet luminosities ranging from $10^{-5}$ to $10^{-3}$ Solar luminosities. We find that the planet radiative feedback enhances the disk's accretion rate at the planet's orbital radius, producing a hotter and more luminous environement around the planet, independently of the prescription used to model the disk's turbul...

  6. Actuator assembly including a single axis of rotation locking member

    DOE Patents [OSTI]

    Quitmeyer, James N.; Benson, Dwayne M.; Geck, Kellan P.

    2009-12-08T23:59:59.000Z

    An actuator assembly including an actuator housing assembly and a single axis of rotation locking member fixedly attached to a portion of the actuator housing assembly and an external mounting structure. The single axis of rotation locking member restricting rotational movement of the actuator housing assembly about at least one axis. The single axis of rotation locking member is coupled at a first end to the actuator housing assembly about a Y axis and at a 90.degree. angle to an X and Z axis providing rotation of the actuator housing assembly about the Y axis. The single axis of rotation locking member is coupled at a second end to a mounting structure, and more particularly a mounting pin, about an X axis and at a 90.degree. angle to a Y and Z axis providing rotation of the actuator housing assembly about the X axis. The actuator assembly is thereby restricted from rotation about the Z axis.

  7. A Case for Including Transactions in OpenMP

    SciTech Connect (OSTI)

    Wong, M; Bihari, B L; de Supinski, B R; Wu, P; Michael, M; Liu, Y; Chen, W

    2010-01-25T23:59:59.000Z

    Transactional Memory (TM) has received significant attention recently as a mechanism to reduce the complexity of shared memory programming. We explore the potential of TM to improve OpenMP applications. We combine a software TM (STM) system to support transactions with an OpenMP implementation to start thread teams and provide task and loop-level parallelization. We apply this system to two application scenarios that reflect realistic TM use cases. Our results with this system demonstrate that even with the relatively high overheads of STM, transactions can outperform OpenMP critical sections by 10%. Overall, our study demonstrates that extending OpenMP to include transactions would ease programming effort while allowing improved performance.

  8. Use of Time-Aggregated Data in Economic Screening Analyses of Combined Heat and Power Systems

    SciTech Connect (OSTI)

    Hudson II, Carl Randy [ORNL

    2004-09-01T23:59:59.000Z

    Combined heat and power (CHP) projects (also known as cogeneration projects) usually undergo a series of assessments and viability checks before any commitment is made. A screening analysis, with electrical and thermal loads characterized on an annual basis, may be performed initially to quickly determine the economic viability of the proposed project. Screening analyses using time-aggregated data do not reflect several critical cost influences, however. Seasonal and diurnal variations in electrical and thermal loads, as well as time-of-use utility pricing structures, can have a dramatic impact on the economics. A more accurate economic assessment requires additional detailed data on electrical and thermal demand (e.g., hourly load data), which may not be readily available for the specific facility under study. Recent developments in CHP evaluation tools, however, can generate the needed hourly data through the use of historical data libraries and building simulation. This article utilizes model-generated hourly load data for four potential CHP applications and compares the calculated cost savings of a CHP system when evaluated on a time-aggregated (i.e., annual) basis to the savings when evaluated on an hour-by-hour basis. It is observed that the simple, aggregated analysis forecasts much greater savings (i.e., greater economic viability) than the more detailed hourly analysis. The findings confirm that the simpler tool produces results with a much more optimistic outlook, which, if taken by itself, might lead to erroneous project decisions. The more rigorous approach, being more reflective of actual requirements and conditions, presents a more accurate economic comparison of the alternatives, which, in turn, leads to better decision risk management.

  9. Spectral-luminescence investigation of 9,10-anthraquinone in various states of aggregation

    SciTech Connect (OSTI)

    Oginets, V.Y.

    1986-02-01T23:59:59.000Z

    A scheme of the electron level configuration of anthraquinone in three states of aggregation is constructed on the bases of experimental data obtained. A class of inert solvents, namely normal hydrocarbons, was employed as a matrix for producing quasiline spectra of absorption and emission of organic molecules. The spectra were also obtained for anthraquinone; optimal resolution was observed in matrices of n-hexane and n-heptane. The emission and excitation spectra of the luminescence and the kinetics of phosphorescence attentuation were measured on setups produced in the laboratory; the absorption spectra were recorded with a Spectral-185 spectrophotometer.

  10. Modeling Uncertainties in Aggregated Thermostatically Controlled Loads Using a State Queueing Model

    E-Print Network [OSTI]

    Ning Lu; David P. Chassin; Steve E. Widergren

    2004-09-19T23:59:59.000Z

    To study the impacts of price responsive demand on the electric power system requires better load models. This paper discusses the modeling of uncertainties in aggregated thermostatically controlled loads using a state queueing (SQ) model. The cycling times of thermostatically controlled appliances (TCAs) vary with the TCA types and sizes, as well as the ambient temperatures. The random consumption of consumers, which shortens or prolongs a specific TCA cycling period, introduces another degree of uncertainty. By modifying the state transition matrix, these random factors can be taken into account in a discrete SQ model. The impacts of considering load diversity in the SQ model while simulating TCA setpoint response are also studied.

  11. Inhibition of Tau Aggregation by Three Aspergillus nidulans Secondary Metabolites: 2,?-Dihydroxyemodin, Asperthecin, and Asperbenzaldehyde

    E-Print Network [OSTI]

    Paranjape, Smita Ramesh; Chiang, Yi-Ming; Sanchez, James F.; Entwistle, Ruth; Wang, Clay C. C.; Oakley, Berl R.; Gamblin, Truman Christopher

    2014-01-10T23:59:59.000Z

    acid. Values are the average of three trials SD. * P ? 0.05; ** p ? 0.01; *** p ? 0.001.cence in the presence of tau with and without a compound (l" Fig. 6). Although 2,?-dihydroxyemodin, asperthecin, and as- perbenzaldehyde showed a dose...]. The previous emo- din study also used 0N3R and 0N4R isoforms of tau [16], while our current study uses 2N4R tau. Our previous studies show that in the presence of arachidonic acid, 2N4R tau is muchmore prone to aggregation than the 0N3R and 0N4R isoforms [43...

  12. The Effects of Using Alkali-Silica Reaction Affected Recycled Concrete Aggregate in Hot Mix Asphalt

    E-Print Network [OSTI]

    Geiger, Brian James

    2011-10-21T23:59:59.000Z

    mix asphalt (HMA) were investigated in this study. Dilatometer and modified beam tests were performed to determine the possibility of new ASR occurring in reactive aggregates within the HMA or re-expansion of existing gel. The Lottman test... (XRD) was used to check for the potential presence of gel in the filler fraction of the ASR-RCAs. Micro-deval and freeze-thaw tests were evaluated for their potential to indicate the presence of excess micro-cracks or ASR gel. Expansion testing...

  13. Aggregation of hexylammonium propionate in DMSO-benzene and DMSO-D?O solvent systems

    E-Print Network [OSTI]

    Constein, Vernon George

    1974-01-01T23:59:59.000Z

    Fig. 18. Aggregation number plots for HAP in 75@a DpO/25$ DMSO-de ~ 72 3. 0 CHg (CH p ) 4CH pNH 3 2. 00 1. 00 ~ 0. 00 I A U 0 i 3. 00 + CHp (CHg) 4CHpNH3 0 0 2. 00 1. 00 0. 0 1. 00 1. 20 1. 40 1. 60 1. 80 2. 00 2 + log tS] 73 Fig... The relationships between a micelle forming surfactant, hexylammonium propionate (1), and the overlapping mixed solvent systems of benzene/dimethyl- sulfoxide/water have been investigated using 'H nuclear magnetic resonance techniques. The changes in t' he...

  14. Extractant composition including crown ether and calixarene extractants

    DOE Patents [OSTI]

    Meikrantz, David H. (Idaho Falls, ID); Todd, Terry A. (Aberdeen, ID); Riddle, Catherine L. (Idaho Falls, ID); Law, Jack D. (Pocalello, ID); Peterman, Dean R. (Idaho Falls, ID); Mincher, Bruce J. (Idaho Falls, ID); McGrath, Christopher A. (Blackfoot, ID); Baker, John D. (Blackfoot, ID)

    2009-04-28T23:59:59.000Z

    An extractant composition comprising a mixed extractant solvent consisting of calix[4] arene-bis-(tert-octylbenzo)-crown-6 ("BOBCalixC6"), 4',4',(5')-di-(t-butyldicyclo-hexano)-18-crown-6 ("DtBu18C6"), and at least one modifier dissolved in a diluent. The DtBu18C6 may be present at from approximately 0.01M to approximately 0.4M, such as at from approximately 0.086 M to approximately 0.108 M. The modifier may be 1-(2,2,3,3-tetrafluoropropoxy)-3-(4-sec-butylphenoxy)-2-propanol ("Cs-7SB") and may be present at from approximately 0.01M to approximately 0.8M. In one embodiment, the mixed extractant solvent includes approximately 0.15M DtBu18C6, approximately 0.007M BOBCalixC6, and approximately 0.75M Cs-7SB modifier dissolved in an isoparaffinic hydrocarbon diluent. The extractant composition further comprises an aqueous phase. The mixed extractant solvent may be used to remove cesium and strontium from the aqueous phase.

  15. DETECTION OF SUBSURFACE FACILITIES INCLUDING NON-METALLIC PIPE

    SciTech Connect (OSTI)

    Mr. Herb Duvoisin

    2003-05-26T23:59:59.000Z

    CyTerra has leveraged our unique, shallow buried plastic target detection technology developed under US Army contracts into deeper buried subsurface facilities and including nonmetallic pipe detection. This Final Report describes a portable, low-cost, real-time, and user-friendly subsurface plastic pipe detector (LULU- Low Cost Utility Location Unit) that relates to the goal of maintaining the integrity and reliability of the nation's natural gas transmission and distribution network by preventing third party damage, by detecting potential infringements. Except for frequency band and antenna size, the LULU unit is almost identical to those developed for the US Army. CyTerra designed, fabricated, and tested two frequency stepped GPR systems, spanning the frequencies of importance (200 to 1600 MHz), one low and one high frequency system. Data collection and testing was done at a variety of locations (selected for soil type variations) on both targets of opportunity and selected buried targets. We developed algorithms and signal processing techniques that provide for the automatic detection of the buried utility lines. The real time output produces a sound as the radar passes over the utility line alerting the operator to the presence of a buried object. Our unique, low noise/high performance RF hardware, combined with our field tested detection algorithms, represents an important advancement toward achieving the DOE potential infringement goal.

  16. Hydrodynamic Simulation of Supernova Remnants Including Efficient Particle Acceleration

    E-Print Network [OSTI]

    Donald C. Ellison; Anne Decourchelle; Jean Ballet

    2003-08-19T23:59:59.000Z

    A number of supernova remnants (SNRs) show nonthermal X-rays assumed to be synchrotron emission from shock accelerated TeV electrons. The existence of these TeV electrons strongly suggests that the shocks in SNRs are sources of galactic cosmic rays (CRs). In addition, there is convincing evidence from broad-band studies of individual SNRs and elsewhere that the particle acceleration process in SNRs can be efficient and nonlinear. If SNR shocks are efficient particle accelerators, the production of CRs impacts the thermal properties of the shock heated, X-ray emitting gas and the SNR evolution. We report on a technique that couples nonlinear diffusive shock acceleration, including the backreaction of the accelerated particles on the structure of the forward and reverse shocks, with a hydrodynamic simulation of SNR evolution. Compared to models which ignore CRs, the most important hydrodynamical effects of placing a significant fraction of shock energy into CRs are larger shock compression ratios and lower temperatures in the shocked gas. We compare our results, which use an approximate description of the acceleration process, with a more complete model where the full CR transport equations are solved (i.e., Berezhko et al., 2002), and find excellent agreement for the CR spectrum summed over the SNR lifetime and the evolving shock compression ratio. The importance of the coupling between particle acceleration and SNR dynamics for the interpretation of broad-band continuum and thermal X-ray observations is discussed.

  17. cDNA encoding a polypeptide including a hevein sequence

    DOE Patents [OSTI]

    Raikhel, Natasha V. (Okemos, MI); Broekaert, Willem F. (Dilbeek, BE); Chua, Nam-Hai (Scarsdale, NY); Kush, Anil (New York, NY)

    1999-05-04T23:59:59.000Z

    A cDNA clone (HEV1) encoding hevein was isolated via polymerase chain reaction (PCR) using mixed oligonucleotides corresponding to two regions of hevein as primers and a Hevea brasiliensis latex cDNA library as a template. HEV1 is 1018 nucleotides long and includes an open reading frame of 204 amino acids. The deduced amino acid sequence contains a putative signal sequence of 17 amino acid residues followed by a 187 amino acid polypeptide. The amino-terminal region (43 amino acids) is identical to hevein and shows homology to several chitin-binding proteins and to the amino-termini of wound-induced genes in potato and poplar. The carboxyl-terminal portion of the polypeptide (144 amino acids) is 74-79% homologous to the carboxyl-terminal region of wound-inducible genes of potato. Wounding, as well as application of the plant hormones abscisic acid and ethylene, resulted in accumulation of hevein transcripts in leaves, stems and latex, but not in roots, as shown by using the cDNA as a probe. A fusion protein was produced in E. coli from the protein of the present invention and maltose binding protein produced by the E. coli.

  18. CDNA encoding a polypeptide including a hevein sequence

    DOE Patents [OSTI]

    Raikhel, Natasha V. (Okemos, MI); Broekaert, Willem F. (Dilbeek, BE); Chua, Nam-Hai (Scarsdale, NY); Kush, Anil (New York, NY)

    1995-03-21T23:59:59.000Z

    A cDNA clone (HEV1) encoding hevein was isolated via polymerase chain reaction (PCR) using mixed oligonucleotides corresponding to two regions of hevein as primers and a Hevea brasiliensis latex cDNA library as a template. HEV1 is 1018 nucleotides long and includes an open reading frame of 204 amino acids. The deduced amino acid sequence contains a putative signal sequence of 17 amino acid residues followed by a 187 amino acid polypeptide. The amino-terminal region (43 amino acids) is identical to hevein and shows homology to several chitin-binding proteins and to the amino-termini of wound-induced genes in potato and poplar. The carboxyl-terminal portion of the polypeptide (144 amino acids) is 74-79% homologous to the carboxyl-terminal region of wound-inducible genes of potato. Wounding, as well as application of the plant hormones abscisic acid and ethylene, resulted in accumulation of hevein transcripts in leaves, stems and latex, but not in roots, as shown by using the cDNA as a probe. A fusion protein was produced in E. coli from the protein of the present invention and maltose binding protein produced by the E. coli.

  19. cDNA encoding a polypeptide including a hevein sequence

    DOE Patents [OSTI]

    Raikhel, N.V.; Broekaert, W.F.; Chua, N.H.; Kush, A.

    1995-03-21T23:59:59.000Z

    A cDNA clone (HEV1) encoding hevein was isolated via polymerase chain reaction (PCR) using mixed oligonucleotides corresponding to two regions of hevein as primers and a Hevea brasiliensis latex cDNA library as a template. HEV1 is 1,018 nucleotides long and includes an open reading frame of 204 amino acids. The deduced amino acid sequence contains a putative signal sequence of 17 amino acid residues followed by a 187 amino acid polypeptide. The amino-terminal region (43 amino acids) is identical to hevein and shows homology to several chitin-binding proteins and to the amino-termini of wound-induced genes in potato and poplar. The carboxyl-terminal portion of the polypeptide (144 amino acids) is 74--79% homologous to the carboxyl-terminal region of wound-inducible genes of potato. Wounding, as well as application of the plant hormones abscisic acid and ethylene, resulted in accumulation of hevein transcripts in leaves, stems and latex, but not in roots, as shown by using the cDNA as a probe. A fusion protein was produced in E. coli from the protein of the present invention and maltose binding protein produced by the E. coli. 11 figures.

  20. cDNA encoding a polypeptide including a hevein sequence

    DOE Patents [OSTI]

    Raikhel, N.V.; Broekaert, W.F.; Chua, N.H.; Kush, A.

    1999-05-04T23:59:59.000Z

    A cDNA clone (HEV1) encoding hevein was isolated via polymerase chain reaction (PCR) using mixed oligonucleotides corresponding to two regions of hevein as primers and a Hevea brasiliensis latex cDNA library as a template. HEV1 is 1018 nucleotides long and includes an open reading frame of 204 amino acids. The deduced amino acid sequence contains a putative signal sequence of 17 amino acid residues followed by a 187 amino acid polypeptide. The amino-terminal region (43 amino acids) is identical to hevein and shows homology to several chitin-binding proteins and to the amino-termini of wound-induced genes in potato and poplar. The carboxyl-terminal portion of the polypeptide (144 amino acids) is 74--79% homologous to the carboxyl-terminal region of wound-inducible genes of potato. Wounding, as well as application of the plant hormones abscisic acid and ethylene, resulted in accumulation of hevein transcripts in leaves, stems and latex, but not in roots, as shown by using the cDNA as a probe. A fusion protein was produced in E. coli from the protein of the present invention and maltose binding protein produced by the E. coli. 12 figs.

  1. C -parameter distribution at N 3 LL ' including power corrections

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

    Hoang, Andr H.; Kolodrubetz, Daniel W.; Mateu, Vicent; Stewart, Iain W.

    2015-05-01T23:59:59.000Z

    We compute the e?e? C-parameter distribution using the soft-collinear effective theory with a resummation to next-to-next-to-next-to-leading-log prime accuracy of the most singular partonic terms. This includes the known fixed-order QCD results up to O(?3s), a numerical determination of the two-loop nonlogarithmic term of the soft function, and all logarithmic terms in the jet and soft functions up to three loops. Our result holds for C in the peak, tail, and far tail regions. Additionally, we treat hadronization effects using a field theoretic nonperturbative soft function, with moments ?n. To eliminate an O(?QCD) renormalon ambiguity in the soft function, we switch from the MS to a short distance Rgap scheme to define the leading power correction parameter ?1. We show how to simultaneously account for running effects in ?1 due to renormalon subtractions and hadron-mass effects, enabling power correction universality between C-parameter and thrust to be tested in our setup. We discuss in detail the impact of resummation and renormalon subtractions on the convergence. In the relevant fit region for ?s(mZ) and ?1, the perturbative uncertainty in our cross section is ? 2.5% at Q=mZ.

  2. Interim performance criteria for photovoltaic energy systems. [Glossary included

    SciTech Connect (OSTI)

    DeBlasio, R.; Forman, S.; Hogan, S.; Nuss, G.; Post, H.; Ross, R.; Schafft, H.

    1980-12-01T23:59:59.000Z

    This document is a response to the Photovoltaic Research, Development, and Demonstration Act of 1978 (P.L. 95-590) which required the generation of performance criteria for photovoltaic energy systems. Since the document is evolutionary and will be updated, the term interim is used. More than 50 experts in the photovoltaic field have contributed in the writing and review of the 179 performance criteria listed in this document. The performance criteria address characteristics of present-day photovoltaic systems that are of interest to manufacturers, government agencies, purchasers, and all others interested in various aspects of photovoltaic system performance and safety. The performance criteria apply to the system as a whole and to its possible subsystems: array, power conditioning, monitor and control, storage, cabling, and power distribution. They are further categorized according to the following performance attributes: electrical, thermal, mechanical/structural, safety, durability/reliability, installation/operation/maintenance, and building/site. Each criterion contains a statement of expected performance (nonprescriptive), a method of evaluation, and a commentary with further information or justification. Over 50 references for background information are also given. A glossary with definitions relevant to photovoltaic systems and a section on test methods are presented in the appendices. Twenty test methods are included to measure performance characteristics of the subsystem elements. These test methods and other parts of the document will be expanded or revised as future experience and needs dictate.

  3. A bottom-up engineering estimate of the aggregate heating andcooling loads of the entire U.S. building stock

    SciTech Connect (OSTI)

    Huang, Yu Joe; Brodrick, Jim

    2000-08-01T23:59:59.000Z

    A recently completed project for the U.S. Department of Energy's (DOE) Office of Building Equipment combined DOE-2 results for a large set of prototypical commercial and residential buildings with data from the Energy Information Administration (EIA) residential and commercial energy consumption surveys (RECS, CBECS) to estimate the total heating and cooling loads in U.S. buildings attributable to different shell components such as windows, roofs, walls, etc., internal processes, and space-conditioning systems. This information is useful for estimating the national conservation potentials for DOE's research and market transformation activities in building energy efficiency. The prototypical building descriptions and DOE-2 input files were developed from 1986 to 1992 to provide benchmark hourly building loads for the Gas Research Institute (GRI) and include 112 single-family, 66 multi-family, and 481 commercial building prototypes. The DOE study consisted of two distinct tasks : (1) perform DOE-2 simulations for the prototypical buildings and develop methods to extract the heating and cooling loads attributable to the different building components; and (2) estimate the number of buildings or floor area represented by each prototypical building based on EIA survey information. These building stock data were then multiplied by the simulated component loads to derive aggregated totals by region, vintage, and building type. The heating and cooling energy consumption of the national building stock estimated by this bottom-up engineering approach was found to agree reasonably well with estimates from other sources, although significant differences were found for certain end-uses. The main added value from this study, however, is the insight it provides about the contributing factors behind this energy consumption, and what energy savings can be expected from efficiency improvements for different building components by region, vintage, and building type.

  4. Community Assessment Tool for Public Health Emergencies Including Pandemic Influenza

    SciTech Connect (OSTI)

    HCTT-CHE

    2011-04-14T23:59:59.000Z

    The Community Assessment Tool (CAT) for Public Health Emergencies Including Pandemic Influenza (hereafter referred to as the CAT) was developed as a result of feedback received from several communities. These communities participated in workshops focused on influenza pandemic planning and response. The 2008 through 2011 workshops were sponsored by the Centers for Disease Control and Prevention (CDC). Feedback during those workshops indicated the need for a tool that a community can use to assess its readiness for a disasterreadiness from a total healthcare perspective, not just hospitals, but the whole healthcare system. The CAT intends to do just thathelp strengthen existing preparedness plans by allowing the healthcare system and other agencies to work together during an influenza pandemic. It helps reveal each core agency partners' (sectors) capabilities and resources, and highlights cases of the same vendors being used for resource supplies (e.g., personal protective equipment [PPE] and oxygen) by the partners (e.g., public health departments, clinics, or hospitals). The CAT also addresses gaps in the community's capabilities or potential shortages in resources. While the purpose of the CAT is to further prepare the community for an influenza pandemic, its framework is an extension of the traditional all-hazards approach to planning and preparedness. As such, the information gathered by the tool is useful in preparation for most widespread public health emergencies. This tool is primarily intended for use by those involved in healthcare emergency preparedness (e.g., community planners, community disaster preparedness coordinators, 9-1-1 directors, hospital emergency preparedness coordinators). It is divided into sections based on the core agency partners, which may be involved in the community's influenza pandemic influenza response.

  5. Recycled brake linings as partial aggregate substitute in asphalt paving. Construction and final report. Report for July 1992-August 1996

    SciTech Connect (OSTI)

    Miller, P.A.; Sukley, R.

    1996-09-01T23:59:59.000Z

    The purpose of this project was to evaluate the performance of asphalt containing various percentages of brake lining as an aggregate, and compare its performance to that of normal asphalt containing natural aggregate. This project is an effort to explore alternate ways to use waste product. Four test section of FB-2 Modified mix containing brake lining materials were placed in July 1992 along with one control section on SR 3022 in Mercer county. To date all sections are performing satisfactory, and Brake linings should be recommended as a viable partial replacement of aggregate in bituminous materials. This study only considered the performance of only off-spec brake linings, therefore, any performance data or enviromental effects of placement of used brake material should be addressed.

  6. The role of cholesterol in the association of endoplasmic reticulum membranes with mitochondria

    SciTech Connect (OSTI)

    Fujimoto, Michiko [Cellular Stress Signaling Unit, Integrative Neuroscience Branch, Intramural Research Program, National Institute on Drug Abuse, National Institutes of Health, Department of Health and Human Services, Baltimore, MD 21224 (United States)] [Cellular Stress Signaling Unit, Integrative Neuroscience Branch, Intramural Research Program, National Institute on Drug Abuse, National Institutes of Health, Department of Health and Human Services, Baltimore, MD 21224 (United States); Hayashi, Teruo, E-mail: thayashi@mail.nih.gov [Cellular Stress Signaling Unit, Integrative Neuroscience Branch, Intramural Research Program, National Institute on Drug Abuse, National Institutes of Health, Department of Health and Human Services, Baltimore, MD 21224 (United States)] [Cellular Stress Signaling Unit, Integrative Neuroscience Branch, Intramural Research Program, National Institute on Drug Abuse, National Institutes of Health, Department of Health and Human Services, Baltimore, MD 21224 (United States); Su, Tsung-Ping, E-mail: tsu@intra.nida.nih.gov [Cellular Pathobiology Section, Integrative Neuroscience Branch, Intramural Research Program, National Institute on Drug Abuse, National Institutes of Health, Department of Health and Human Services, Baltimore, MD 21224 (United States)] [Cellular Pathobiology Section, Integrative Neuroscience Branch, Intramural Research Program, National Institute on Drug Abuse, National Institutes of Health, Department of Health and Human Services, Baltimore, MD 21224 (United States)

    2012-01-06T23:59:59.000Z

    Highlights: Black-Right-Pointing-Pointer The endoplasmic reticulum subdomain termed MAM associates with mitochondria. Black-Right-Pointing-Pointer The biophysical role of lipids in the MAM-mitochondria association is unknown. Black-Right-Pointing-Pointer The in vitro membrane association assay was used to examine the role of lipids. Black-Right-Pointing-Pointer Cholesterol was found to negatively regulate the association. -- Abstract: The unique endoplasmic reticulum (ER) subdomain termed the mitochondria-associated ER membrane (MAM) engages the physical connection between the ER and the mitochondrial outer membrane and plays a role in regulating IP{sub 3} receptor-mediated Ca{sup 2+} influx and the phospholipid transport between the two organelles. The MAM contains certain signaling and membrane-tethering proteins but also lipids including cholesterol. The biophysical role of lipids at the MAM, specifically in the physical interaction between the MAM of the ER and mitochondria, remains not totally clarified. Here we employed the in vitro membrane association assay to investigate the role of cholesterol in the association between MAMs and mitochondria. The purified MAMs and mitochondria were mixed in vitro in a test tube and then the physical association of the two subcellular organelles was quantified indirectly by measuring the presence of the MAM-specific protein sigma-1 receptors in the mitochondria fraction. Purified MAMs contained free cholesterol approximately 7 times higher than that in microsomes. We found that depletion of cholesterol in MAMs with methyl-{beta}-cyclodextrin (M{beta}C) significantly increases the association between MAMs and mitochondria, whereas M{beta}C saturated with cholesterol does not change the association. {sup 14}C-Serine pulse-labeling demonstrated that the treatment of living cells with M{beta}C decreases the level of de novo synthesized {sup 14}C-phosphatidylserine (PtSer) and concomitantly increases greatly the synthesis of {sup 14}C-phosphatidylethanolamine (PtEt). Apparently, cholesterol depletion increased the PtSer transport from MAMs to mitochondria. Our findings suggest that cholesterol is an important substrate in regulating the association between MAMs of the ER and mitochondria.

  7. Technical support document: Energy conservation standards for consumer products: Dishwashers, clothes washers, and clothes dryers including: Environmental impacts; regulatory impact analysis

    SciTech Connect (OSTI)

    Not Available

    1990-12-01T23:59:59.000Z

    The Energy Policy and Conservation Act as amended (P.L. 94-163), establishes energy conservation standards for 12 of the 13 types of consumer products specifically covered by the Act. The legislation requires the Department of Energy (DOE) to consider new or amended standards for these and other types of products at specified times. This Technical Support Document presents the methodology, data and results from the analysis of the energy and economic impacts of standards on dishwashers, clothes washers, and clothes dryers. The economic impact analysis is performed in five major areas: An Engineering Analysis, which establishes technical feasibility and product attributes including costs of design options to improve appliance efficiency. A Consumer Analysis at two levels: national aggregate impacts, and impacts on individuals. The national aggregate impacts include forecasts of appliance sales, efficiencies, energy use, and consumer expenditures. The individual impacts are analyzed by Life-Cycle Cost (LCC), Payback Periods, and Cost of Conserved Energy (CCE), which evaluate the savings in operating expenses relative to increases in purchase price; A Manufacturer Analysis, which provides an estimate of manufacturers' response to the proposed standards. Their response is quantified by changes in several measures of financial performance for a firm. An Industry Impact Analysis shows financial and competitive impacts on the appliance industry. A Utility Analysis that measures the impacts of the altered energy-consumption patterns on electric utilities. A Environmental Effects analysis, which estimates changes in emissions of carbon dioxide, sulfur oxides, and nitrogen oxides, due to reduced energy consumption in the home and at the power plant. A Regulatory Impact Analysis collects the results of all the analyses into the net benefits and costs from a national perspective. 47 figs., 171 tabs. (JF)

  8. Final technical report for project titled Quantitative Characterization of Cell Aggregation/Adhesion as Predictor for Distribution and Transport of Microorganisms in Subsurface Environment

    SciTech Connect (OSTI)

    Gu, April Z [Northeastern University; Wan, Kai-tak [Northeastern Univeristy

    2014-09-02T23:59:59.000Z

    This project aims to explore and develop enabling methodology and techniques for nano-scale characterization of microbe cell surface contact mechanics, interactions and adhesion quantities that allow for identification and quantification of indicative properties related to microorganism migration and transport behavior in porous media and in subsurface environments. Microbe transport has wide impact and therefore is of great interest in various environmental applications such as in situ or enhanced subsurface bioremediation,filtration processes for water and wastewater treatments and protection of drinking water supplies. Although great progress has been made towards understanding the identities and activities of these microorganisms in the subsurface, to date, little is known of the mechanisms that govern the mobility and transport of microorganisms in DOEs contaminated sites, making the outcomes of in situ natural attenuation or contaminant stability enhancement unpredictable. Conventionally, movement of microorganisms was believed to follows the rules governing solute (particle) transport. However, recent studies revealed that cell surface properties, especially those pertaining to cell attachment/adhesion and aggregation behavior, can cause the microbe behavior to deviate from non-viable particles and hence greatly influence the mobility and distribution of microorganisms in porous media.This complexity highlights the need to obtain detailed information of cell-cell and cell-surface interactions in order to improve and refine the conceptual and quantitative model development for fate and transport of microorganisms and contaminant in subsurface. Traditional cell surface characterization methods are not sufficient to fully predict the deposition rates and transport behaviors of microorganism observed. A breakthrough of methodology that would allow for quantitative and molecular-level description of intrinsic cell surface properties indicative for cell-surface interactions is essential for the field. To tackle this, we have developed a number of new Bio-nanomechanical techniques, including reflection interference contrast microscopy (RICM) and bio-AFM (Atomic Force Microscopy), for cell adhesion-detachment measurement of the long-range surface interactions, in combination with mathematical modeling, which would allow us to characterize the mechanical behavior from single cell to multi-cell aggregate, critical thresholds for large scale coaggregation and transportation of cells and aggregates in the presence of long range inter-surface forces etc. Although some technical and mathematical challenges remain, the preliminary results promise great breakthrough potential. In this study, we investigated the cellular surface characteristics of representative bio-remediating microorganisms relevant to DOE IFRC (Integrated Field-Scale Subsurface Research Challenges) sites and their transport behaviors in porous media, aiming to draw a groundbreaking correlation between the micro-scale genetic and biological origin-based cell surface properties, the consequent mechanical adhesion and aggregation behaviors, and the macro-scale microbial mobility and retention in porous media, which are unavailable in the literature. The long-term goal is to significantly improve the mechanistic and quantitative understanding of microbial mobility, sorption, and transport within reactive transport models as needed to manipulate subsurface contaminant fate and transport predictions.

  9. Influence of Ionic Surfactants on the Aggregation of Poly(Ethylene Oxide)-Poly(Propylene Oxide)-Poly(Ethylene Oxide) Block Copolymers Studied by Differential Scanning and

    E-Print Network [OSTI]

    Loh, Watson

    Influence of Ionic Surfactants on the Aggregation of Poly(Ethylene Oxide)-Poly(Propylene Oxide copolymers of poly(ethylene oxide) and poly(propylene oxide), EOnPOmEOn, and the ionic surfactants sodium the aggregates of all three polymers. Introduction Water-soluble poly(ethylene oxide)-poly(propylene oxide)- poly

  10. Real-Time Push Middleware and Mobile Application for Electric Vehicle Smart Charging and Aggregation, Accepted for publication June 15, 2011, Special Issue on: Context-

    E-Print Network [OSTI]

    California at Los Angeles, University of

    to demand response and spinning reserves by sending electricity into the grid. EV users are updated and Aggregation, Accepted for publication June 15, 2011, Special Issue on: Context- Aware System and Intelligent and Aggregation Siddhartha Mal and Rajit Gadh Smart Grid Energy Research Center, Mechanical Engineering Department

  11. Temporal structure of aggregate power fluctuations in large-eddy simulations of extended wind-farms

    E-Print Network [OSTI]

    Stevens, Richard J A M

    2014-01-01T23:59:59.000Z

    Fluctuations represent a major challenge for the incorporation of electric power from large wind-farms into power grids. Wind farm power output fluctuates strongly in time, over various time scales. Understanding these fluctuations, especially their spatio-temporal characteristics, is particularly important for the design of backup power systems that must be readily available in conjunction with wind-farms. In this work we analyze the power fluctuations associated with the wind-input variability at scales between minutes to several hours, using large eddy simulations (LES) of extended wind-parks, interacting with the atmospheric boundary layer. LES studies enable careful control of parameters and availability of wind-velocities simultaneously across the entire wind-farm. The present study focuses on neutral atmospheric conditions and flat terrain, using actuator-disk representations of the individual wind-turbines. We consider power from various aggregates of wind-turbines such as the total average power sign...

  12. Orientationally ordered aggregates of stiff polyelectrolytes in the presence of multivalent salt

    E-Print Network [OSTI]

    Sarah Mohammadinejad; Hossein Fazli; Ramin Golestanian

    2009-03-25T23:59:59.000Z

    Aggregation of stiff polyelectrolytes in solution and angle- and distance-dependent potential of mean force between two like-charged rods are studied in the presence of 3-valent salt using molecular dynamics simulations. In the bulk solution, formation of long-lived metastable structures with similarities to the raft-like structures of actin filaments is observed within a range of salt concentration. The system finally goes to a state with lower free energy in which finite-sized bundles of parallel polyelectrolytes form. Preferred angle and interaction type between two like-charged rods at different separations and salt concentrations are also studied, which shed some light on the formation of orientationally ordered structures.

  13. Smart Meter Aggregation via Secret-Sharing George Danezis, Cdric Fournet, Markulf Kohlweiss, Santiago Zanella-Bguelin

    E-Print Network [OSTI]

    Danezis, George

    Smart Meter Aggregation via Secret-Sharing George Danezis, Cédric Fournet, Markulf Kohlweiss,fournet,markulf,santiago}@microsoft.com ABSTRACT We design and prototype protocols for processing smart- meter readings while preserving user-sharing; smart me- tering; privacy 1. INTRODUCTION Smart metering deployments have been plagued with pri- vacy

  14. Decentralized Control of Aggregated Loads for Demand Response Di Guo, Wei Zhang, Gangfeng Yan, Zhiyun Lin, and Minyue Fu

    E-Print Network [OSTI]

    Zhang, Wei

    Decentralized Control of Aggregated Loads for Demand Response Di Guo, Wei Zhang, Gangfeng Yan of residential responsive loads for vari- ous demand response applications. We propose a general hybrid system and effectively reduce the peak power consumption. I. INTRODUCTION Demand response has the potential to shift

  15. A LuGre Tire Friction Model with Exact Aggregate Dynamics Panagiotis Tsiotras, Efstathios Velenis and Michel Sorine

    E-Print Network [OSTI]

    Tsiotras, Panagiotis

    A LuGre Tire Friction Model with Exact Aggregate Dynamics Panagiotis Tsiotras, Efstathios Velenis and Michel Sorine Abstract-- The LuGre dynamic point contact friction model for the two-dimensional translation of a body on a surface has been used in the past to derive a model for the friction forces

  16. Monitoring simultaneously the growth of nanoparticles and aggregates by in situ ultra-small-angle x-ray scattering

    SciTech Connect (OSTI)

    Kammler, Hendrik K.; Beaucage, Gregory; Kohls, Douglas J.; Agashe, Nikhil; Ilavsky, Jan [Particle Technology Laboratory, Department of Mechanical and Process Engineering, ETH Zurich, ML F23, CH-8092 Zurich (Switzerland); Department of Chemical and Materials Engineering, University of Cincinnati, 540 Engineering Research Center, Cincinnati, Ohio 45221-0012 (United States); UNICAT, Advanced Photon Source, Building 438D, 9700 South Cass Avenue, Argonne National Laboratory, Argonne, Illinois 60439 (United States)

    2005-03-01T23:59:59.000Z

    Ultra-small-angle x-ray scattering can provide information about primary particles and aggregates from a single scattering experiment. This technique is applied in situ to flame aerosol reactors for monitoring simultaneously the primary particle and aggregate growth dynamics of oxide nanoparticles in a flame. This was enabled through the use of a third generation synchrotron source (Advanced Photon Source, Argonne IL, USA) using specialized scattering instrumentation at the UNICAT facility which is capable of simultaneously measuring nanoscales to microscales (1 nm to 1 {mu}m). More specifically, the evolution of primary-particle diameter, mass-fractal dimension, geometric standard deviation, silica volume fraction, number concentration, radius of gyration of the aggregate, and number of primary particles per aggregate are measured along the flame axis for two different premixed flames. All these particle characteristics were derived from a single and nonintrusive measurement technique. Flame temperature profiles were measured in the presence of particles by in situ Fourier transform infrared spectroscopy and thermophoretic sampling was used to visualize particle growth with height above the burner as well as in the radial direction.

  17. FUNCTIONAL ADHESIVENESS OF THE CX3CL1 CHEMOKINE REQUIRES ITS AGGREGATION: ROLE OF THE TRANSMEMBRANE DOMAIN*

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    FUNCTIONAL ADHESIVENESS OF THE CX3CL1 CHEMOKINE REQUIRES ITS AGGREGATION: ROLE OF THE TRANSMEMBRANE: CX3CL1 clustering Address correspondence to: Philippe Deterre, Laboratoire Immunologie Cellulaire Paris. FAX: +33 (0)1 40 77 97 34; E-mail: deterre@ccr.jussieu.fr In its native form, the chemokine CX3CL

  18. Pasture degradation impacts soil phosphorus storage via changes to aggregate-associated soil organic matter in highly weathered tropical

    E-Print Network [OSTI]

    Gilli, Adrian

    Pasture degradation impacts soil phosphorus storage via changes to aggregate-associated soil. degraded pas- tures in the deforested Amazon Basin of Colombia. Paired plots of productive (dominated by planted Brachiaria spp.) vs. degraded pasture were identified on nine farms in the Department of Caquet

  19. J. Am. Chem. SOC.1991, 113,9575-9585 9575 Mixed Aggregation of Lithium Enolates and Lithium Halides

    E-Print Network [OSTI]

    Collum, David B.

    J. Am. Chem. SOC.1991, 113,9575-9585 9575 Mixed Aggregation of Lithium Enolates and Lithium Halides with Lithium 2,2,6,6-Tetramethylpiperidide(LiTMP) Patricia L. Hall, James H. Gilchrist, Aidan T. Harrison]-lithiumdi-tert-butylamide and conformationally locked [6Li]-lithium2,2,4,6,6-pentamethylpiperidide shed further light

  20. Aggregate Flexibility of Thermostatically Controlled Loads He Haoa, Borhan M. Sanandajib, Kameshwar Poollac, and Tyrone L. Vincentd

    E-Print Network [OSTI]

    Sanandaji, Borhan M.

    (TCLs) such as air conditioners, heat pumps, water heaters, and refrigera- to&E, aggregate residential air conditioners for peak load shaving and emergency load management [6]. Because services such as frequency regulation or load-following. Residential Thermostatically Controlled Loads

  1. Influence of internal curing using lightweight aggregates on interfacial transition zone percolation and chloride ingress in mortars

    E-Print Network [OSTI]

    Bentz, Dale P.

    paste [5]. If sufficient curing water is not readily available at early ages, the concrete will undergo on the nature of the aggregate, specifically its porosity and water absorption. Lightweight aggre- gates (LWA) with a porous surface layer have been noted to produce a dense ITZ microstructure that is equivalent

  2. Laser-Based Mass Spectrometric Determination of Aggregation Numbers for Petroleum-and Coal-Derived Asphaltenes

    E-Print Network [OSTI]

    Zare, Richard N.

    Laser-Based Mass Spectrometric Determination of Aggregation Numbers for Petroleum- and Coal: Petroleum- and coal-derived asphaltenes have been studied with three laser-based mass spectrometric-MS), in which a single laser desorbs and ionizes solid analytes from an activated surface; and laser desorption

  3. A Definition of the Degree of Ionization of a Micelle Based on Its Aggregation Number Barney L. Bales*

    E-Print Network [OSTI]

    Bales, Barney

    the measurement of R on the basis of this definition. Theory We employ the language of the pseudophase ionA Definition of the Degree of Ionization of a Micelle Based on Its Aggregation Number Barney L and added salt concentrations yielding the same value of Caq leads to a straightforward definition of R. Any

  4. The common inhaled anesthetic isoflurane increases aggregation of huntingtin and alters calcium homeostasis in a cell model of Huntington's disease

    SciTech Connect (OSTI)

    Wang Qiujun [Department of Anesthesiology and Critical Care, University of Pennsylvania, 305 John Morgan Building, 3620 Hamilton Walk, Pennsylvania, PA 19104 (United States); Department of Anesthesiology, The Third Clinical Hospital, Hebei Medical University, Shijiazhuang, Hebei 050051 (China); Liang Ge [Department of Anesthesiology and Critical Care, University of Pennsylvania, 305 John Morgan Building, 3620 Hamilton Walk, Pennsylvania, PA 19104 (United States); Yang Hui [Department of Anesthesiology and Critical Care, University of Pennsylvania, 305 John Morgan Building, 3620 Hamilton Walk, Pennsylvania, PA 19104 (United States); Department of Anesthesiology, Tongji Hospital, Tongji Medical College, HuaZhong Science and Technology University, Wuhan 430030 (China); Wang Shouping [Department of Anesthesiology and Critical Care, University of Pennsylvania, 305 John Morgan Building, 3620 Hamilton Walk, Pennsylvania, PA 19104 (United States); Department of Anesthesia, Second Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510120 (China); Eckenhoff, Maryellen F. [Department of Anesthesiology and Critical Care, University of Pennsylvania, 305 John Morgan Building, 3620 Hamilton Walk, Pennsylvania, PA 19104 (United States); Wei Huafeng, E-mail: weih@uphs.upenn.edu [Department of Anesthesiology and Critical Care, University of Pennsylvania, 305 John Morgan Building, 3620 Hamilton Walk, Pennsylvania, PA 19104 (United States)

    2011-02-01T23:59:59.000Z

    Isoflurane is known to increase {beta}-amyloid aggregation and neuronal damage. We hypothesized that isoflurane will have similar effects on the polyglutamine huntingtin protein and will cause alterations in intracellular calcium homeostasis. We tested this hypothesis in striatal cells from the expanded glutamine huntingtin knock-in mouse (STHdh{sup Q111/Q111}) and wild type (STHdh{sup Q7/Q7}) striatal neurons. The primary cultured neurons were exposed for 24 h to equipotent concentrations of isoflurane, sevoflurane, and desflurane in the presence or absence of extracellular calcium and with or without xestospongin C, a potent endoplasmic reticulum inositol 1,4,5-trisphosphate (InsP{sub 3}) receptor antagonist. Aggregation of huntingtin protein, cell viability, and calcium concentrations were measured. Isoflurane, sevoflurane, and desflurane all increased the aggregation of huntingtin in STHdh{sup Q111/Q111} cells, with isoflurane having the largest effect. Isoflurane induced greater calcium release from the ER and relatively more cell damage in the STHdh{sup Q111/Q111} huntingtin cells than in the wild type STHdh{sup Q7/Q7} striatal cells. However, sevoflurane and desflurane caused less calcium release from the ER and less cell damage. Xestospongin C inhibited the isoflurane-induced calcium release from the ER, aggregation of huntingtin, and cell damage in the STHdh{sup Q111/Q111} cells. In summary, the Q111 form of huntingtin increases the vulnerability of striatal neurons to isoflurane neurotoxicity through combined actions on the ER IP{sub 3} receptors. Calcium release from the ER contributes to the anesthetic induced huntingtin aggregation in STHdh{sup Q111/Q111} striatal cells.

  5. ARM: Surface Radiation Measurement Quality Control testing, including climatologically configurable limits

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

    Hodges, Gary; Stoffel, Tom; Kutchenreiter, Mark; Kay, Bev; Habte, Aron; Ritsche, Michael; Morris, Victor; Anderberg, Mary

    Surface Radiation Measurement Quality Control testing, including climatologically configurable limits

  6. Popularity and Quality in Social News Aggregators: A Study of Reddit and Hacker News

    E-Print Network [OSTI]

    Stoddard, Greg

    2015-01-01T23:59:59.000Z

    In this paper we seek to understand the relationship between the online popularity of an article and its intrinsic quality. Prior experimental work suggests that the relationship between quality and popularity can be very distorted due to factors like social influence bias and inequality in visibility. We conduct a study of popularity on two different social news aggregators, Reddit and Hacker News. We define quality as the relative number of votes an article would have received if each article was shown, in a bias-free way, to an equal number of users. We propose a simple poisson regression method to estimate this quality metric from time-series voting data. We validate our methods on data from Reddit and Hacker News, as well the experimental data from prior work. This method works well even though the collected data is subject to common social media biases. Using these estimates, we find that popularity on Reddit and Hacker News is a stronger reflection of intrinsic quality than expected.

  7. Probing Asphaltene Aggregation in Native Crude Oils with Low-Field NMR

    SciTech Connect (OSTI)

    Zielinski, Lukasz; Saha, Indrajit; Freed, Denise E.; Hrlimann, Martin D.; Liu, Yongsheng (BU-M); (Schlumberger-Doll)

    2010-04-13T23:59:59.000Z

    We show that low-field proton nuclear magnetic resonance (NMR) relaxation and diffusion experiments can be used to study asphaltene aggregation directly in crude oils. Relaxation was found to be multiexponential, reflecting the composition of a complex fluid. Remarkably, the relaxation data for samples with different asphaltene concentrations can be collapsed onto each other by a simple rescaling of the time dimension with a concentration-dependent factor {zeta}, whereas the observed diffusion behavior is unaffected by asphaltene concentration. We interpret this finding in terms of a theoretical model that explains the enhanced relaxation by the transitory entanglement of solvent hydrocarbons within asphaltene clusters and their subsequent slowed motion and diffusion within the cluster. We relate the measured scaling parameters {zeta} to cluster sizes, which we find to be on the order of 2.2-4.4 nm for an effective sphere diameter. These sizes are in agreement with the typical values reported in the literature as well as with the small-angle X-ray scattering (SAXS) experiments performed on our samples.

  8. Influence of steel fibers on the development of alkali-aggregate reaction

    SciTech Connect (OSTI)

    Pires de Carvalho, Maria Rita [COPPE/Universidade Federal do Rio de Janeiro, Civil Engineering Department, P.B. 68506, CEP 21941-972, Rio de Janeiro-RJ (Brazil); Moraes Rego Fairbairn, Eduardo de, E-mail: eduardo@coc.ufrj.b [COPPE/Universidade Federal do Rio de Janeiro, Civil Engineering Department, P.B. 68506, CEP 21941-972, Rio de Janeiro-RJ (Brazil); Dias Toledo Filho, Romildo [COPPE/Universidade Federal do Rio de Janeiro, Civil Engineering Department, P.B. 68506, CEP 21941-972, Rio de Janeiro-RJ (Brazil); Chagas Cordeiro, Guilherme [Universidade Estadual Norte Fluminense Darcy Ribeiro, Laboratory of Civil Engineering, Campos dos Goytacazes-RJ (Brazil); Pagan Hasparyk, Nicole [FURNAS Centrais Eletricas S.A., DCT.C., Aparecida de Goiania-GO (Brazil)

    2010-04-15T23:59:59.000Z

    This work presents the results of an experimental research concerning the use of fibers in mortar specimens subjected to alkali-aggregate reaction (AAR). Two types of steel fibers (0.16 mm diameter and 6.0 mm length, and 0.20 mm diameter and 13.0 mm length) were used with fiber volume contents of 1% and 2%. Besides the expansion accelerated tests, compressive tests and flexural tests have also been carried out to display the main mechanical characteristics of the fiber-reinforced mortars after being subjected to AAR. Moreover, the microstructure of the specimens was analyzed by scanning electron microscopy and energy dispersive X-ray. The results shown that the addition of steel fibers reduced the expansion due to AAR for the experimental conditions studied in this paper. The most expressive benefit corresponded to the addition of 13.0 mm fibers in the mixture containing 2% fiber content. This fiber volume content also corresponded to the maximum increment in the mechanical properties compared to the reference mortar, mainly for the post-cracking strength and for the toughness in bending. It was observed that the fibers have a beneficial effect on the material, without compromising its main mechanical properties.

  9. Investigation of metal ion extraction and aggregate formation combining acidic and neutral organophosphorous reagents

    SciTech Connect (OSTI)

    Braatz, A.D.; Nilsson, M. [Department of Chemical Engineering and Materials Science, 916 Engineering Tower, University of California-Irvine, Irvine, CA 92697-2575 (United States); Ellis, R.; Antonio, M. [Chemical Science and Engineering Division, Argonne National Laboratory, Building 200 9700 South Cass Ave, Argonne, IL 60439-4831 (United States)

    2013-07-01T23:59:59.000Z

    In the present study, we investigate how varying mixtures of tri-n-butyl phosphate (TBP) and dibutyl phosphate (HDBP) results in enhanced extraction of lanthanum(III), La{sup 3+}, and dysprosium(III), Dy{sup 3+}. Water and metal ion extraction were carefully monitored as a function of TBP:HDBP mole ratio.In addition to these techniques, EXAFS was used to determine the coordination environment of the metal ion in this system. To produce the necessary signal, a concentration of 1.25*10{sup -3} M La{sup 3+} and Dy{sup 3+} was used. Although previous studies of synergistic extraction of metal cations using combinations of neutral and acidic reagents explain the enhanced extraction by increased dehydration of the metal ion and the formation of mixed extractant complexes, our evidence for the increased water extraction coupled with the aggregate formation suggests a reverse micellar aspect to synergism in the system containing TBP and HDBP. It is quite possible that both of these phenomena contribute to our system behavior. The EXAFS data shows that, based on coordination numbers alone, several possible structures may exist. From this study, we cannot provide a definitive answer as to the nature of extraction in this system or the exact complex formed during extraction.

  10. Small heat shock proteins protect against {alpha}-synuclein-induced toxicity and aggregation

    SciTech Connect (OSTI)

    Outeiro, Tiago Fleming [Alzheimer's Research Unit, MassGeneral Institute for Neurodegenerative Disease, MGH, Harvard Medical School, CNY 114, 16th Street, Charlestown, MA 02129 (United States); Klucken, Jochen [Alzheimer's Research Unit, MassGeneral Institute for Neurodegenerative Disease, MGH, Harvard Medical School, CNY 114, 16th Street, Charlestown, MA 02129 (United States); Strathearn, Katherine E. [Department of Medicinal Chemistry and Molecular Pharmacology, Purdue University, West Lafayette, IN 47907-2091 (United States); Liu Fang [Department of Medicinal Chemistry and Molecular Pharmacology, Purdue University, West Lafayette, IN 47907-2091 (United States); Nguyen, Paul [Alzheimer's Research Unit, MassGeneral Institute for Neurodegenerative Disease, MGH, Harvard Medical School, CNY 114, 16th Street, Charlestown, MA 02129 (United States); Rochet, Jean-Christophe [Department of Medicinal Chemistry and Molecular Pharmacology, Purdue University, West Lafayette, IN 47907-2091 (United States); Hyman, Bradley T. [Alzheimer's Research Unit, MassGeneral Institute for Neurodegenerative Disease, MGH, Harvard Medical School, CNY 114, 16th Street, Charlestown, MA 02129 (United States); McLean, Pamela J. [Alzheimer's Research Unit, MassGeneral Institute for Neurodegenerative Disease, MGH, Harvard Medical School, CNY 114, 16th Street, Charlestown, MA 02129 (United States)]. E-mail: touteiro@partners.org

    2006-12-22T23:59:59.000Z

    Protein misfolding and inclusion formation are common events in neurodegenerative diseases, such as Parkinson's disease (PD), Alzheimer's disease (AD) or Huntington's disease (HD). {alpha}-Synuclein (aSyn) is the main protein component of inclusions called Lewy bodies (LB) which are pathognomic of PD, Dementia with Lewy bodies (DLB), and other diseases collectively known as LB diseases. Heat shock proteins (HSPs) are one class of the cellular quality control system that mediate protein folding, remodeling, and even disaggregation. Here, we investigated the role of the small heat shock proteins Hsp27 and {alpha}B-crystallin, in LB diseases. We demonstrate, via quantitative PCR, that Hsp27 messenger RNA levels are {approx}2-3-fold higher in DLB cases compared to control. We also show a corresponding increase in Hsp27 protein levels. Furthermore, we found that Hsp27 reduces aSyn-induced toxicity by {approx}80% in a culture model while {alpha}B-crystallin reduces toxicity by {approx}20%. In addition, intracellular inclusions were immunopositive for endogenous Hsp27, and overexpression of this protein reduced aSyn aggregation in a cell culture model.

  11. Intermediate-scale tests of sodium interactions with calcite and dolomite aggregate concretes. [LMFBR

    SciTech Connect (OSTI)

    Randich, E.; Acton, R.U.

    1983-09-01T23:59:59.000Z

    Two intermediate-scale tests were performed to compare the behavior of calcite and dolomite aggregate concretes when attacked by molten sodium. The tests were performed as part of an interlaboratory comparison between Sandia National Laboratories and Hanford Engineering Development Laboratories. Results of the tests at Sandia National Laboratories are reported here. The results show that both concretes exhibit similar exothermic reactions with molten sodium. The large difference in reaction vigor suggested by thermodynamic considerations of CO/sub 2/ release from calcite and dolomite was not realized. Penetration rates of 1.4 to 1.7 mm/min were observed for short periods of time with reaction zone temperatures in excess of 800/sup 0/C during the energetic attack. The penetration was not uniform over the entire sodium-concrete contact area. Rapid attack may be localized due to inhomogeneities in the concrete. The chemical reaction zone is less then one cm thick for the calcite concrete but is about seven cm thick for the dolomite concrete.

  12. Particle Restabilization in Silica/PEG/Ethanol Suspensions: How Strongly do Polymers Need To Adsorb To Stabilize Against Aggregation?

    SciTech Connect (OSTI)

    Kim, So Youn; Zukoski, Charles F. (UIUC)

    2014-09-24T23:59:59.000Z

    We study the effects of increasing the concentration of a low molecular weight polyethylene glycol on the stability of 44 nm diameter silica nanoparticles suspended in ethanol. Polymer concentration, c{sub p}, is increased from zero to that characterizing the polymer melt. Particle stability is accessed through measurement of the particle second-virial coefficient, B{sub -2}, performed by light scattering and ultrasmall angle X-ray scattering (USAXS). The results show that at low polymer concentration, c{sub p} < 3 wt %, B{sub -2} values are positive, indicating repulsive interactions between particles. B{sub -2} decreases at intermediate concentrations (3 wt % < c{sub p} < 50 wt %), and particles aggregates are formed. At high concentrations (50 wt % < c{sub p}) B{sub -2} increases and stabilizes at a value expected for hard spheres with a diameter near 44 nm, indicating the particles are thermodynamically stable. At intermediate polymer concentrations, rates of aggregation are determined by measuring time-dependent changes in the suspension turbidity, revealing that aggregation is slowed by the necessity of the particles diffusing over a repulsive barrier in the pair potential. The magnitude of the barrier passes through a minimum at c{sub p} {approx} 12 wt % where it has a value of {approx}12kT. These results are understood in terms of a reduction of electrostatic repulsion and van der Waals attractions with increasing c{sub p}. Depletion attractions are found to play a minor role in particle stability. A model is presented suggesting displacement of weakly adsorbed polymer leads to slow aggregation at intermediate concentration, and we conclude that a general model of depletion restabilization may involve increased strength of polymer adsorption with increasing polymer concentration.

  13. Utilization of Illinois coal gasification slags for production of ultra-lightweight aggregates. Final technical report, September 1, 1992--August 31, 1993

    SciTech Connect (OSTI)

    Choudhry, V. [Praxis Engineers, Inc., Milpitas, CA (United States); Zimmerle, T. [Silbrico Corp. (United States)

    1993-12-31T23:59:59.000Z

    This research was aimed at testing and developing the expansion potential of solid residues (slag) from gasification of Illinois coals to manufacture ultra-lightweight aggregates (ULWA). Conventional ULWAs are manufactured by pyroprocessing perlite or vermiculite ores and have unit weights in the 5--12 lb/ ft{sup 3} range. These materials sell for approximately $200/ton ($1.00/ft{sup 3}) and have numerous applications. The incentive for this effort was based on previous experimental results in which lightweight aggregates (LWA) with unit weights of 25--55 lb/ft{sup 3} were produced from Illinois slag using a direct-fired furnace. In this program, bench-scale expansion tests conducted with two Illinois coal slags resulted in product unit weights of 12 and 18.5 lb/ ft{sup 3}, thus confirming the feasibility of producing ULWA from Illinois slags. During initial pilot vertical shaft furnace test runs, two Illinois slags were expanded to generate products with unit weights of 12.5--26.5 and 20--52 lb/ ft{sup 3}. Further attempts to lower the product unit weights resulted in fusion of the slag. This problem could be overcome by methods including surface treatment of the slag, blending the slag with other materials, or utilization of indirect firing methods. To lower the product unit weights, an indirect-fired horizontal shaft furnace was used and products with unit weights of 12.4--52.0 lb/ft{sup 3} were generated, thus indicating that this method can be used to produce a wide range of expanded products. A large batch of expanded slag was produced using an 18-in. diameter x 12-ft long indirect-fired pilot furnace. A sample from this batch was characterized. Specimens of insulating concrete made from expanded slag had a unit weight 43.3 lb/ft{sup 3} and thermal conductivity of 1.34 Btu-in./h/ft{sup 2}/{degrees}F. This compares well with a value of 1. 2 Btu-in./h/ft{sup 2}/{degrees}F for insulating concrete of a similar weight made from perlite, as per ASTM C 332-82.

  14. Assessment of substrate-stabilizing factors for DnaK on the folding of aggregation-prone proteins

    SciTech Connect (OSTI)

    Ryu, Kisun; Kim, Chul Woo; Kim, Byung Hee [Department of Biotechnology, College of Engineering, Yonsei University, 134 Shinchon-Dong, Seodaemun-Gu, Seoul 120-749 (Korea, Republic of); Han, Kyoung Sim [Protheon Incorporated, Yonsei Engineering Research Center B120E, 134 Shinchon-Dong, Seodaemun-Gu, Seoul 120-749 (Korea, Republic of); Kim, Kyun-Hwan [Department of Pharmacology, School of Medicine, and Center for Diagnostic Medicine, Institute of Biomedical Science and Technology, Konkuk University, Seoul 143-701 (Korea, Republic of); Choi, Seong Il [Department of Biotechnology, College of Engineering, Yonsei University, 134 Shinchon-Dong, Seodaemun-Gu, Seoul 120-749 (Korea, Republic of); Institute of Life Science and Biotechnology, Yonsei University, 134 Shinchon-Dong, Seodaemun-Gu, Seoul 120-749 (Korea, Republic of)], E-mail: seongilchoi@daum.net; Seong, Baik L. [Department of Biotechnology, College of Engineering, Yonsei University, 134 Shinchon-Dong, Seodaemun-Gu, Seoul 120-749 (Korea, Republic of); Protheon Incorporated, Yonsei Engineering Research Center B120E, 134 Shinchon-Dong, Seodaemun-Gu, Seoul 120-749 (Korea, Republic of); Institute of Life Science and Biotechnology, Yonsei University, 134 Shinchon-Dong, Seodaemun-Gu, Seoul 120-749 (Korea, Republic of)], E-mail: blseong@yonsei.ac.kr

    2008-08-15T23:59:59.000Z

    Hydrophobic interactions between molecular chaperones and their nonnative substrates have been believed to be mainly responsible for both substrate recognition and stabilization against aggregation. However, the hydrophobic contact area between DnaK and its substrate proteins is very limited and other factors of DnaK for the substrate stabilization could not be excluded. Here, we covalently fused DnaK to the N-termini of aggregation-prone proteins in vivo. In the context of a fusion protein, DnaK has the ability to efficiently solubilize its linked proteins. The point mutation of the residue of DnaK critical for the substrate recognition and the deletion of the C-terminal substrate-binding domain did not have significant effect on the solubilizing ability of DnaK. The results imply that other factors of DnaK, distinct from the hydrophobic shielding of folding intermediates, also contributes to stabilization of its noncovalently bound substrates against aggregation. Elucidation of the nature of these factors would further enhance our understanding of the substrate stabilization of DnaK for expedited protein folding.

  15. Contributions of aromatic pairs of human Gamma-D-Crystallin to its folding, stability, aggregation, and interaction with human Alpha B-Crystallin

    E-Print Network [OSTI]

    Kong, Fanrong, Ph. D. Massachusetts Institute of Technology

    2012-01-01T23:59:59.000Z

    Two distinct groups of proteins, a-crystallins and [Beta][gamma]-crystallins, constitute 90% of the vertebrate eye lens soluble proteins. Long-term solubility and stability against unfolding and aggregation are essential ...

  16. Human platelet aggregation and phospholipid fatty acid composition during omega-3 fatty acid enriched egg consumption: influence of nutrient intake and omega-3 fatty acid source

    E-Print Network [OSTI]

    Hatch, Sandra D

    1997-01-01T23:59:59.000Z

    The current study investigated the usefulness of omega-3 polyunsaturated fatty acid (n-3 PUFA) enriched eggs for duplicating health benefits of consuming fish, specifically decreasing platelet aggregation via changes in plasma phospholipid (PL...

  17. Chromatographic separations of soil organic matter for purposes of investigating the physico-chemical role of organic matter in soil aggregation

    E-Print Network [OSTI]

    Gerard, C. J.

    1955-01-01T23:59:59.000Z

    ....................50 CHROMATOGRAPHIC SEPARATIONS OP SOIL ORGANIC MATTER FOR PURPOSES OP INVESTIGATING THE PHYSICOCHEMICAL ROLE OP ORGANIC MATTER IN SOIL AGGREGATION INTRODUCTION In recent years soil scientists have observed that many fertile soils fail to produce yields...CHROMATOGRAPHIC SEPARATIONS OP SOIL ORGANIC MATTER POR PURPOSES OP INVESTIGATING THE PHYSICOCHEMICAL ROLE OP ORGANIC MATTER IN SOIL AGGREGATION A Dissertation *>y Cleveland Joseph Gerard May 1955 L IB R AR Y A&M COLLEGE OF TEXAS...

  18. Omega-3 fatty acid rich eggs as an alternative to fish in the diet: effects on human platelet aggregation and plasma lipids

    E-Print Network [OSTI]

    Mayo, Patricia

    1996-01-01T23:59:59.000Z

    aggregation, and a longer bleeding time, contributed to a lower risk of heart disease among Eskimos when compared to Danes. Eskimo platelet phospholipids (PPL) were indicative of a diet rich in marine-type omega-3 FA, specifically a low content (&I... that decreasing platelet aggregation may reduce heart disease mortality. Bang and Dyerberg (20) proposed that PPL EPA mediated interactions between platelets and vascular endothelia resulting in the production of an anti-inflanunatory, anti- constrictive...

  19. N114S mutation causes loss of ATP-induced aggregation of human phosphoribosylpyrophosphate synthetase 1

    SciTech Connect (OSTI)

    Liu Honglin [National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui 230029 (China); Peng, Xiaohui [Hefei National Laboratory for Physical Sciences at Microscale and School of Life Sciences, University of Science and Technology of China, Hefei, Anhui 230026 (China); Key Laboratory of Structural Biology, Chinese Academy of Sciences, Hefei, Anhui 230026 (China); Zhao Fang [Hefei National Laboratory for Physical Sciences at Microscale, Department of Chemical Physics, University of Science and Technology of China, Hefei, Anhui 230026 (China); Hefei National Laboratory for Physical Sciences at Microscale, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui 230026 (China); Zhang Guobin [National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui 230029 (China); Tao Ye [Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100039 (China); Luo Zhaofeng [Hefei National Laboratory for Physical Sciences at Microscale and School of Life Sciences, University of Science and Technology of China, Hefei, Anhui 230026 (China); Li Yang; Teng Maikun [Hefei National Laboratory for Physical Sciences at Microscale and School of Life Sciences, University of Science and Technology of China, Hefei, Anhui 230026 (China); Key Laboratory of Structural Biology, Chinese Academy of Sciences, Hefei, Anhui 230026 (China); Li Xu [Hefei National Laboratory for Physical Sciences at Microscale and School of Life Sciences, University of Science and Technology of China, Hefei, Anhui 230026 (China); Key Laboratory of Structural Biology, Chinese Academy of Sciences, Hefei, Anhui 230026 (China)], E-mail: sachem@ustc.edu.cn; Wei Shiqiang [National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui 230029 (China)], E-mail: sqwei@ustc.edu.cn

    2009-02-20T23:59:59.000Z

    This study examined recombinant wild-type human phosphoribosylpyrophosphate synthetase 1 (wt-PRS1, EC 2.7.6.1) and the point mutant Asn114Ser PRS1 (N114S-Mutant) in cells of a patient with primary gout. Dynamic light-scattering and sedimentation velocity experiments indicated that the monomeric wt-PRS1 in solution was assembled into hexamers after adding the substrate ATP. However, this ATP-induced aggregation effect was not observed with N114S-Mutant, which has a 50% higher enzymatic activity than that of wt-PRS1. Synchrotron radiation circular dichroism spectroscopy revealed that the point mutation causes an increase of {alpha}-helix content and a decrease of turn content. Examination of the crystal structure of wt-PRS1 indicated that 12 hydrogen bonds formed by 6 pairs of N114 and D139 have an important role in stabilizing the hexamer. We suggest that the substitution of S114 for N114 in N114S-Mutant leads to the rupture of 12 hydrogen bonds and breakage of the PO{sub 4}{sup 3-} allosteric site where PO{sub 4}{sup 3-} functions as a fixer of the ATP-binding loop. Therefore, we consider that formation of the hexamer as the structural basis of the ADP allosteric inhibition is greatly weakened by the N114S mutation, and that alteration of the ATP-binding loop conformation is the key factor in the increased activity of N114S-Mutant. These two factors could be responsible for the high level of activity of N114S-Mutant in this patient.

  20. SBIR/STTR Phase I Release 1 Award Winners Announced, Includes...

    Office of Environmental Management (EM)

    Release 1 Award Winners Announced, Includes Four Hydrogen and Fuel Cell Projects SBIRSTTR Phase I Release 1 Award Winners Announced, Includes Four Hydrogen and Fuel Cell Projects...

  1. DOE Order 440. 1 B: Worker Protection Program for DOE (Including...

    Office of Environmental Management (EM)

    0. 1 B: Worker Protection Program for DOE (Including NNSA) Federal Employees DOE Order 440. 1 B: Worker Protection Program for DOE (Including NNSA) Federal Employees Stakeholders:...

  2. A STUDY OF AGGREGATION BIAS IN ESTIMATING THE MARKET FOR HOME HEATING AND COOLING EQUIPMENT

    E-Print Network [OSTI]

    Wood, D.J.

    2010-01-01T23:59:59.000Z

    air choice elec forced air choice heat pump choice elecwith ac elecforced air, with ac heat pump elec baseboard,central air conditioning (including heat pumps), and eight

  3. NM's Flying 40 List Includes CHTM Start-Up By Stefi Weisburd June 23, 2014

    E-Print Network [OSTI]

    New Mexico, University of

    -ups including Sandia Systems, Inc., Semiconductor Bridge Technology, Gratings, Inc., Zia Laser, Inc., K

  4. Composite materials and bodies including silicon carbide and titanium diboride and methods of forming same

    DOE Patents [OSTI]

    Lillo, Thomas M.; Chu, Henry S.; Harrison, William M.; Bailey, Derek

    2013-01-22T23:59:59.000Z

    Methods of forming composite materials include coating particles of titanium dioxide with a substance including boron (e.g., boron carbide) and a substance including carbon, and reacting the titanium dioxide with the substance including boron and the substance including carbon to form titanium diboride. The methods may be used to form ceramic composite bodies and materials, such as, for example, a ceramic composite body or material including silicon carbide and titanium diboride. Such bodies and materials may be used as armor bodies and armor materials. Such methods may include forming a green body and sintering the green body to a desirable final density. Green bodies formed in accordance with such methods may include particles comprising titanium dioxide and a coating at least partially covering exterior surfaces thereof, the coating comprising a substance including boron (e.g., boron carbide) and a substance including carbon.

  5. Effect of degree of synthetic lightweight aggregate pre-wetting on the freeze-thaw durability of lightweight concrete

    E-Print Network [OSTI]

    Kanabar, C. N

    1966-01-01T23:59:59.000Z

    an important role in frost resistance of concrete. The moist curing period of the concrete has been found to be of significant importance for the frost resistance in fresh water. But in sea water, the moist curing period has only a small effect on freeze-chaw...EFFECT OF DEGREE OF SYNTHETIC LIGHTWEIGHT AGGREGATE PRE-WETTING ON THE FREEZE-THAW DURABILITY OF LIGHTWEIGHT CONCRETE A Thesis By CHANDRAKANT N. KANABAR Submitted to the Graduate College of the Texas A&M University in partial fulfillment...

  6. Micellization Coupled with Facilitation of J-Aggregation for Poly(1,3-Cyclohexadiene) - Based Amphiphilic Block Copolymers

    SciTech Connect (OSTI)

    Lin, Jiaping [ORNL; Ding, Weiwei [East China University of Science and Technology, Shanghai, China; Hong, Kunlun [ORNL; Mays, Jimmy [ORNL; Xu, Zhongde [East China University of Science and Technology, Shanghai, China; Yuan, Yizhong [East China University of Science and Technology, Shanghai, China

    2008-01-01T23:59:59.000Z

    Self-assembly and its influence on the photophysical properties of polystyrene-b-sulfonated poly (1,3-cyclohexadiene) (PS-b-sPCHD) were investigated using transmission electron microscopy (TEM), laser light scattering (LLS) technique, and fluorescence spectroscopy. The amphiphilic PS-b-sPCHD copolymers can associate to form micelles with insoluble PS segments as the core surrounded by soluble sPCHD segments in aqueous media. J-aggregation of the chromophores in sPCHD segments is significantly facilitated in the micellization, resulting in a remarkable change in the photophysical properties of PS-b-sPCHD.

  7. AAV-mediated delivery of the transcription factor XBP1s into the striatum reduces mutant Huntingtin aggregation in a mouse model of Huntington's disease

    SciTech Connect (OSTI)

    Zuleta, Amparo [Biomedical Neuroscience Institute, Faculty of Medicine, University of Chile, Santiago (Chile) [Biomedical Neuroscience Institute, Faculty of Medicine, University of Chile, Santiago (Chile); Center for Molecular Studies of the Cell, Institute of Biomedical Sciences, University of Chile, Santiago (Chile); Vidal, Rene L. [Biomedical Neuroscience Institute, Faculty of Medicine, University of Chile, Santiago (Chile) [Biomedical Neuroscience Institute, Faculty of Medicine, University of Chile, Santiago (Chile); Neurounion Biomedical Foundation, Santiago (Chile); Armentano, Donna; Parsons, Geoffrey [Department of Molecular Biology, Genzyme Corporation, 49 New York Avenue, Framingham, MA 01701 (United States)] [Department of Molecular Biology, Genzyme Corporation, 49 New York Avenue, Framingham, MA 01701 (United States); Hetz, Claudio, E-mail: chetz@med.uchile.cl [Biomedical Neuroscience Institute, Faculty of Medicine, University of Chile, Santiago (Chile) [Biomedical Neuroscience Institute, Faculty of Medicine, University of Chile, Santiago (Chile); Center for Molecular Studies of the Cell, Institute of Biomedical Sciences, University of Chile, Santiago (Chile); Department of Immunology and Infectious Diseases, Harvard School of Public Health, 651 Huntington Av., Boston, MA 02446 (United States); Neurounion Biomedical Foundation, Santiago (Chile)

    2012-04-13T23:59:59.000Z

    Highlights: Black-Right-Pointing-Pointer The contribution of ER stress to HD has not been directly addressed. Black-Right-Pointing-Pointer Expression of XBP1s using AAVs decreases Huntingtin aggregation in vivo. Black-Right-Pointing-Pointer We describe a new in vivo model of HD based on the expression of a large fragment of mHtt-RFP. -- Abstract: Huntington's disease (HD) is caused by mutations that expand a polyglutamine region in the amino-terminal domain of Huntingtin (Htt), leading to the accumulation of intracellular inclusions and progressive neurodegeneration. Recent reports indicate the engagement of endoplasmic reticulum (ER) stress responses in human HD post mortem samples and animal models of the disease. Adaptation to ER stress is mediated by the activation of the unfolded protein response (UPR), an integrated signal transduction pathway that attenuates protein folding stress by controlling the expression of distinct transcription factors including X-Box binding protein 1 (XBP1). Here we targeted the expression of XBP1 on a novel viral-based model of HD. We delivered an active form of XBP1 locally into the striatum of adult mice using adeno-associated vectors (AAVs) and co-expressed this factor with a large fragment of mutant Htt as a fusion protein with RFP (Htt588{sup Q95}-mRFP) to directly visualize the accumulation of Htt inclusions in the brain. Using this approach, we observed a significant reduction in the accumulation of Htt588{sup Q95}-mRFP intracellular inclusion when XBP1 was co-expressed in the striatum. These results contrast with recent findings indicating a protective effect of XBP1 deficiency in neurodegeneration using knockout mice, and suggest a potential use of gene therapy strategies to manipulate the UPR in the context of HD.

  8. A continuum constitutive model for the mechanical behavior of woven fabrics including slip and failure

    E-Print Network [OSTI]

    King, Michael J. (Michael James), 1978-

    2006-01-01T23:59:59.000Z

    Woven fabrics are used in many applications, including ballistic armors and fabric-reinforced composites. Advances in small-scale technologies are enabling new applications including fabrics with embedded electronics, ...

  9. SBIR/STTR Release 2 Topics Announced-Includes Hydrogen and Fuel...

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

    Topics Announced-Includes Hydrogen and Fuel Cells SBIRSTTR Release 2 Topics Announced-Includes Hydrogen and Fuel Cells October 31, 2014 - 12:05pm Addthis The 2015 Small Business...

  10. Photovoltaic Device Including A Boron Doping Profile In An I-Type Layer

    DOE Patents [OSTI]

    Yang, Liyou (Lawrenceville, NJ)

    1993-10-26T23:59:59.000Z

    A photovoltaic cell for use in a single junction or multijunction photovoltaic device, which includes a p-type layer of a semiconductor compound including silicon, an i-type layer of an amorphous semiconductor compound including silicon, and an n-type layer of a semiconductor compound including silicon formed on the i-type layer. The i-type layer including an undoped first sublayer formed on the p-type layer, and a boron-doped second sublayer formed on the first sublayer.

  11. The effects of side-chain-induced disorder on the emission spectra and quantum yields of oligothiophene nano-aggregates: A combined experimental and MD-TDDFT study

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

    Hong, Jiyun; Sfeir, Matthew Y.; Jeon, SuKyung; Kim, Janice J.; Devi, Diane; Chacon-Madrid, Kelly; Lee, Wynee; Koo, Seung Moh; Wildeman, Jurjen; Peteanu, Linda A.; et al

    2014-11-13T23:59:59.000Z

    Oligomeric thiophenes are commonly-used components in organic electronics and solar cells. These molecules stack and/or aggregate readily under the processing conditions used to form thin films for these applications, significantly altering their optical and charge-transport properties. To determine how these effects depend on the substitution pattern of the thiophene main chains, nano-aggregates of three sexi-thiophene (6T) oligomers having different alkyl substitution patterns were formed using solvent poisoning techniques and studied using steady-state and time-resolved emission spectroscopy. The results indicate the substantial role played by the side-chain substituents in determining the emissive properties of these species. Both the measured spectral changesmoreand their dependence on substitution are well modeled by combined quantum chemistry and molecular dynamics simulations. The simulations connect the side-chain-induced disorder, which determines the favorable chain packing configurations within the aggregates, with their measured electronic spectra.less

  12. The effects of side-chain-induced disorder on the emission spectra and quantum yields of oligothiophene nano-aggregates: A combined experimental and MD-TDDFT study

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

    Hong, Jiyun [Carnegie Mellon Univ., Pittsburgh, PA (United States); Sfeir, Matthew Y. [Brookhaven National Lab. (BNL), Upton, NY (United States); Jeon, SuKyung [Carnegie Mellon Univ., Pittsburgh, PA (United States); Kim, Janice J. [Carnegie Mellon Univ., Pittsburgh, PA (United States); Devi, Diane [Carnegie Mellon Univ., Pittsburgh, PA (United States); Chacon-Madrid, Kelly [Carnegie Mellon Univ., Pittsburgh, PA (United States); Lee, Wynee [Carnegie Mellon Univ., Pittsburgh, PA (United States); Koo, Seung Moh [Carnegie Mellon Univ., Pittsburgh, PA (United States); Wildeman, Jurjen [Zernike Institute of Advanced Materials Nijenborgh, Groningen (The Netherlands); Peteanu, Linda A. [Carnegie Mellon Univ., Pittsburgh, PA (United States); Wen, Jin [Najing Univ., Nanjing (China); Ma, Jing [Najing Univ., Nanjing (China)

    2014-11-13T23:59:59.000Z

    Oligomeric thiophenes are commonly-used components in organic electronics and solar cells. These molecules stack and/or aggregate readily under the processing conditions used to form thin films for these applications, significantly altering their optical and charge-transport properties. To determine how these effects depend on the substitution pattern of the thiophene main chains, nano-aggregates of three sexi-thiophene (6T) oligomers having different alkyl substitution patterns were formed using solvent poisoning techniques and studied using steady-state and time-resolved emission spectroscopy. The results indicate the substantial role played by the side-chain substituents in determining the emissive properties of these species. Both the measured spectral changes and their dependence on substitution are well modeled by combined quantum chemistry and molecular dynamics simulations. The simulations connect the side-chain-induced disorder, which determines the favorable chain packing configurations within the aggregates, with their measured electronic spectra.

  13. Quantitative analysis of in situ optical diagnostics for inferring particle/aggregate parameters in flames: Implications for soot surface growth and total emissivity

    SciTech Connect (OSTI)

    Koeylue, U.O. [Yale Univ., New Haven, CT (United States). Dept. of Chemical Engineering] [Yale Univ., New Haven, CT (United States). Dept. of Chemical Engineering

    1997-05-01T23:59:59.000Z

    An in situ particulate diagnostic/analysis technique is outlined based on the Rayleigh-Debye-Gans polydisperse fractal aggregate (RDG/PFA) scattering interpretation of absolute angular light scattering and extinction measurements. Using proper particle refractive index, the proposed data analysis method can quantitatively yield all aggregate parameters (particle volume fraction, f{sub v}, fractal dimension, D{sub f}, primary particle diameter, d{sub p}, particle number density, n{sub p}, and aggregate size distribution, pdf(N)) without any prior knowledge about the particle-laden environment. The present optical diagnostic/interpretation technique was applied to two different soot-containing laminar and turbulent ethylene/air nonpremixed flames in order to assess its reliability. The aggregate interpretation of optical measurements yielded D{sub f}, d{sub p}, and pdf(N) that are in excellent agreement with ex situ thermophoretic sampling/transmission electron microscope (TS/TEM) observations within experimental uncertainties. However, volume-equivalent single particle models (Rayleigh/Mie) overestimated d{sub p} by about a factor of 3, causing an order of magnitude underestimation in n{sub p}. Consequently, soot surface areas and growth rates were in error by a factor of 3, emphasizing that aggregation effects need to be taken into account when using optical diagnostics for a reliable understanding of soot formation/evolution mechanism in flames. The results also indicated that total soot emissivities were generally underestimated using Rayleigh analysis (up to 50%), mainly due to the uncertainties in soot refractive indices at infrared wavelengths. This suggests that aggregate considerations may not be essential for reasonable radiation heat transfer predictions from luminous flames because of fortuitous error cancellation, resulting in typically a 10 to 30% net effect.

  14. RAMP: Impact of Rule Based Aggregator Business Model for Residential Microgrid of Prosumers

    E-Print Network [OSTI]

    Al Faruque, Mohammad Abdullah

    the load through storage), participation in the electricity market through DR program, and other innovative Including Distributed Energy Resources Mohammad Abdullah Al Faruque Department of Electrical Engineering programs) in the electricity market and therefore will be able to bring economic advantages to all

  15. Photovoltaic module kit including connector assembly for non-penetrating array installation

    DOE Patents [OSTI]

    Botkin, Jonathan (El Cerrito, CA); Graves, Simon (Berkeley, CA); Danning, Matt (Oakland, CA); Culligan, Matthew (Berkeley, CA)

    2011-11-22T23:59:59.000Z

    A PV module kit for non-penetrating rooftop installation, including a plurality of PV modules and a plurality of connectors. Each of the PV modules includes a PV laminate and a frame forming a mounting region assembled thereto. The connectors include a male connector having a male fastener extending from a head, and a female connector having a female fastener assembled within a head. The heads are entirely formed of plastic. The kit provides a mounted array state including a junction at which the mounting region of at least two of the PV modules are aligned and interconnected by engagement of the male connector with the female connector. The so-formed junction is substantially electrically insulated. The plurality of connectors can further include a spacer connector including a head forming a bore sized to slidably receive the male fastener, with all of the connector heads being identical.

  16. Photovoltaic module kit including connector assembly for non-penetrating array installation

    DOE Patents [OSTI]

    Botkin, Jonathan; Graves, Simon; Danning, Matt; Culligan, Matthew

    2012-10-23T23:59:59.000Z

    A PV module kit for non-penetrating rooftop installation, including a plurality of PV modules and a plurality of connectors. Each of the PV modules includes a PV laminate and a frame forming a mounting region assembled thereto. The connectors include a male connector having a male fastener extending from a head, and a female connector having a female fastener assembled within a head. The heads are entirely formed of plastic. The kit provides a mounted array state including a junction at which the mounting region of at least two of the PV modules are aligned and interconnected by engagement of the male connector with the female connector. The so-formed junction is substantially electrically insulated. The plurality of connectors can further include a spacer connector including a head forming a bore sized to slidably receive the male fastener, with all of the connector heads being identical.

  17. Photovoltaic module kit including connector assembly for non-penetrating array installation

    DOE Patents [OSTI]

    Botkin, Jonathan; Graves, Simon; Danning, Matt; Culligan, Matthew

    2013-12-31T23:59:59.000Z

    A PV module kit for non-penetrating rooftop installation, including a plurality of PV modules and a plurality of connectors. Each of the PV modules includes a PV laminate and a frame forming a mounting region assembled thereto. The connectors include a male connector having a male fastener extending from a head, and a female connector having a female fastener assempbled within a head. The heads are entirely formed of plastic. The kit provides a mounted array state including a junction at which the mounting regions of at least two of the PV modules are aligned and interconnected by engagement of the male connector with the female connector. The so-formed junction is substantially electrically insulated. The plurality of connectors can further include a spacer connector including a head forming a bore sized slidably receive the male fastener, with all of the connector heads being identical.

  18. New records of the Cryphonectriaceae from southern Africa including Latruncellus aurorae gen. sp. nov.

    E-Print Network [OSTI]

    New records of the Cryphonectriaceae from southern Africa including Latruncellus aurorae gen. sp, Latruncellus aurorae gen. sp. nov., is described from Galpinia transvaalica (Lythraceae, Myrtales) in Swazi

  19. Quantitative Analysis of Biofuel Sustainability, Including Land Use Change GHG Emissions

    Broader source: Energy.gov [DOE]

    Plenary V: Biofuels and Sustainability: Acknowledging Challenges and Confronting MisconceptionsQuantitative Analysis of Biofuel Sustainability, Including Land Use Change GHG EmissionsJennifer B....

  20. SBIR/STTR FY15 Phase 2 Awards Announced-Includes Hydrogen Production...

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

    Phase 2 Release 1 Awards, including three Office of Science projects focusing on hydrogen production from electrolysis and hydrogen systems supporting fuel cell electric...