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1

Gas-phase chemical dynamics  

SciTech Connect (OSTI)

Research in this program is directed towards the spectroscopy of small free radicals and reactive molecules and the state-to-state dynamics of gas phase collision, energy transfer, and photodissociation phenomena. Work on several systems is summarized here.

Weston, R.E. Jr.; Sears, T.J.; Preses, J.M. [Brookhaven National Laboratory, Upton, NY (United States)

1993-12-01T23:59:59.000Z

2

Chemical structure and dynamics: Annual report 1996  

SciTech Connect (OSTI)

The Chemical Structure and Dynamics (CS&D) program is a major component of the William R. Wiley Environmental Molecular Sciences Laboratory (EMSL) developed by Pacific Northwest National Laboratory (PNNL) to provide a state-of-the-art collaborative facility for studies of chemical structure and dynamics. We respond to the need for a fundamental, molecular-level understanding of chemistry at a wide variety of environmentally important interfaces by (1) extending the experimental characterization and theoretical description of chemical reactions to encompass the effects of condensed media and interfaces; (2) developing a multidisciplinary capability for describing interfacial chemical processes within which the new knowledge generated can be brought to bear on complex phenomena in environmental chemistry and in nuclear waste processing and storage; and (3) developing state-of-the-art analytical methods for characterizing waste tanks and pollutant distributions, and for detecting and monitoring trace atmospheric species.

Colson, S.D.; McDowell, R.S.

1997-03-01T23:59:59.000Z

3

Chemical structure and dynamics. Annual report 1995  

SciTech Connect (OSTI)

The Chemical Structure and Dynamics program is a major component of Pacific Northwest National Laboratory`s Environmental Molecular Sciences Laboratory (EMSL), providing a state-of-the-art collaborative facility for studies of chemical structure and dynamics. We respond to the need for a fundamental, molecular-level understanding of chemistry at a wide variety of environmentally important interfaces by (1) extending the experimental characterization and theoretical description of chemical reactions to encompass the effects of condensed media and interfaces; (2) developing a multidisciplinary capability for describing interfacial chemical processes within which the new knowledge generated can be brought to bear on complex phenomena in environmental chemistry and in nuclear waste processing and storage; and (3) developing state-of-the-art analytical methods for the characterization of waste tanks and pollutant distributions, and for detection and monitoring of trace atmospheric species.

Colson, S.D.; McDowell, R.S.

1996-05-01T23:59:59.000Z

4

Annual Report 2000. Chemical Structure and Dynamics  

SciTech Connect (OSTI)

This annual report describes the research and accomplishments of the Chemical Structure and Dynamics Program in the year 2000, one of six research programs at the William R. Wiley Environmental Molecular Sciences Laboratory (EMSL) - a multidisciplinary, national scientific user facility and research organization. The Chemical Structure and Dynamics (CS&D) program is meeting the need for a fundamental, molecular-level understanding by 1) extending the experimental characterization and theoretical description of chemical reactions to encompass the effects of condensed media and interfaces; 2) developing a multidisciplinary capability for describing interfacial chemical processes relevant to environmental chemistry; and 3) developing state-of-the-art research and analytical methods for characterizing complex materials of the types found in natural and contaminated systems.

Colson, Steven D.; McDowell, Robin S.

2001-04-15T23:59:59.000Z

5

Chemical structure and dynamics: Annual report 1993  

SciTech Connect (OSTI)

The Chemical Structure and Dynamics program responds to the need for a fundamental, molecular-level understanding of chemistry at the wide variety of environmentally-important interfaces. The research program is built around the established relationship between structure, thermodynamics, and kinetics. This research effort continues to evolve into a program of rigorous studies of fundamental molecular processes in model systems (e.g., well-characterized surfaces, single-component solutions, clusters, and biological molecules), and studies of complex systems found in the environment. Experimental studies of molecular and supramolecular structures and thermodynamics are key to understanding the nature of matter, and lead to direct comparison with computational results. Kinetic and mechanistic measurements, combined with real-time dynamics measurements of atomic and molecular motions during chemical reactions, provide for a molecular-level description of chemical reactions. The anticipated results of this work are the achievement of a quantitative understanding of chemical processes at complex interfaces, the development of new techniques for the detection and measurement of species at such interfaces, and the interpretation and extrapolation of the observations in terms of models of interfacial chemistry. The Chemical Structure and Dynamics research program includes five areas described in detail in this report: Reaction mechanisms at solid interfaces; Solution and solution interfaces; Structure and dynamics of biological systems; Analytical methods development; and atmospheric chemistry. Extended abstracts are presented for 23 studies.

Colson, S.D.

1994-07-01T23:59:59.000Z

6

Chemical Structure and Dynamics annual report 1997  

SciTech Connect (OSTI)

The Chemical Structure and Dynamics (CS and D) program is a major component of the William R. Wiley Environmental Molecular Sciences Laboratory (EMSL), developed by Pacific Northwest National Laboratory (PNNL) to provide a state-of-the-art collaborative facility for studies of chemical structure and dynamics. The authors respond to the need for a fundamental, molecular level understanding of chemistry at a wide variety of environmentally important interfaces by: (1) extending the experimental characterization and theoretical description of chemical reactions to encompass the effects of condensed media and interfaces; (2) developing a multidisciplinary capability for describing interfacial chemical processes within which the new knowledge generated can be brought to bear on complex phenomena in environmental chemistry and in nuclear waste processing and storage; and (3) developing state-of-the-art analytical methods for characterizing complex materials of the types found in stored wastes and contaminated soils, and for detecting and monitoring trace atmospheric species. The focus of the research is defined primarily by DOE`s environmental problems: fate and transport of contaminants in the subsurface environment, processing and storage of waste materials, cellular effects of chemical and radiological insult, and atmospheric chemistry as it relates to air quality and global change. Twenty-seven projects are described under the following topical sections: Reaction mechanisms at interfaces; High-energy processes at environmental interfaces; Cluster models of the condensed phase; and Miscellaneous.

Colson, S.D.; McDowell, R.S.

1998-03-01T23:59:59.000Z

7

Annual Report 1998: Chemical Structure and Dynamics  

SciTech Connect (OSTI)

The Chemical Structure and Dynamics (CS&D) program is a major component of the William R. Wiley Environmental Molecular Sciences Labo- ratory (EMSL), developed by Pacific Northwest National Laboratory (PNNL) to provide a state-of- the-art collaborative facility for studies of chemical structure and dynamics. We respond to the need for a fundamental, molecular-level understanding of chemistry at a wide variety of environmentally important interfaces by (1) extending the experimental characterization and theoretical description of chemical reactions to encompass the effects of condensed media and interfaces; (2) developing a multidisciplinary capability for describing interracial chemical processes within which the new knowledge generated can be brought to bear on complex phenomena in envi- ronmental chemistry and in nuclear waste proc- essing and storage; and (3) developing state-of- the-art analytical methods for characterizing com- plex materials of the types found in stored wastes and contaminated soils, and for detecting and monitoring trace atmospheric species. Our program aims at achieving a quantitative understanding of chemical reactions at interfaces and, more generally, in condensed media, compa- rable to that currently available for gas-phase reactions. This understanding will form the basis for the development of a priori theories for pre- dicting macroscopic chemical behavior in con- densed and heterogeneous media, which will add significantly to the value of field-scale envi- ronmental models, predictions of short- and long- term nuclear waste storage stabilities, and other areas related to the primary missions of the U.S. Department of Energy (DOE).

SD Colson; RS McDowell

1999-05-10T23:59:59.000Z

8

Chemical structure and dynamics. Annual report 1994  

SciTech Connect (OSTI)

The Chemical Structure and Dynamics program was organized as a major component of Pacific Northwest Laboratory`s Environmental and Molecular Sciences Laboratory (EMSL), a state-of-the-art collaborative facility for studies of chemical structure and dynamics. Our program responds to the need for a fundamental, molecular-level understanding of chemistry at the wide variety of environmentally important interfaces by (1) extending the experimental characterization and theoretical description of chemical reactions to encompass the effects of condensed media and interfaces, and (2) developing a multidisciplinary capability for describing interfacial chemical processes within which the new knowledge generated can be brought to bear on complex phenomena in environmental chemistry and in nuclear waste processing and storage. This research effort was initiated in 1989 and will continue to evolve over the next few years into a program of rigorous studies of fundamental molecular processes in model systems, such as well-characterized surfaces, single-component solutions, clusters, and biological molecules; and studies of complex systems found in the environment (multispecies, multiphase solutions; solid/liquid, liquid/liquid, and gas/surface interfaces; colloidal dispersions; ultrafine aerosols; and functioning biological systems). The success of this program will result in the achievement of a quantitative understanding of chemical reactions at interfaces, and more generally in condensed media, that is comparable to that currently available for gas-phase reactions. This understanding will form the basis for the development of a priori theories for predictions of macroscopic chemical behavior in condensed and heterogeneous media, adding significantly to the value of field-scale environmental models, the prediction of short- and long-term nuclear waste storage stabilities, and other problems related to the primary missions of the DOE.

Colson, S.D.

1995-07-01T23:59:59.000Z

9

Theoretical studies of chemical reaction dynamics  

SciTech Connect (OSTI)

This collaborative program with the Theoretical Chemistry Group at Argonne involves theoretical studies of gas phase chemical reactions and related energy transfer and photodissociation processes. Many of the reactions studied are of direct relevance to combustion; others are selected they provide important examples of special dynamical processes, or are of relevance to experimental measurements. Both classical trajectory and quantum reactive scattering methods are used for these studies, and the types of information determined range from thermal rate constants to state to state differential cross sections.

Schatz, G.C. [Argonne National Laboratory, IL (United States)

1993-12-01T23:59:59.000Z

10

Quantum dynamics of fast chemical reactions  

SciTech Connect (OSTI)

The aims of this research are to explore, develop, and apply theoretical methods for the evaluation of the dynamics of gas phase collision processes, primarily chemical reactions. The primary theoretical tools developed for this work have been quantum scattering theory, both in time dependent and time independent forms. Over the past several years, the authors have developed and applied methods for the direct quantum evaluation of thermal rate constants, applying these to the evaluation of the hydrogen isotopic exchange reactions, applied wave packet propagation techniques to the dissociation of Rydberg H{sub 3}, incorporated optical potentials into the evaluation of thermal rate constants, evaluated the use of optical potentials for state-to-state reaction probability evaluations, and, most recently, have developed quantum approaches for electronically non-adiabatic reactions which may be applied to simplify calculations of reactive, but electronically adiabatic systems. Evaluation of the thermal rate constants and the dissociation of H{sub 3} were reported last year, and have now been published.

Light, J.C. [Univ. of Chicago, IL (United States)

1993-12-01T23:59:59.000Z

11

Chemical Dynamics at Metal Surfaces: The Role of Electronic Excitation...  

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

Chemical Dynamics at Metal Surfaces: The Role of Electronic Excitations Mar 06 2015 11:00 AM - 12:00 PM John Tully, Yale University, New Haven, Connecticut Joint Institute for...

12

THE JOURNAL OF CHEMICAL PHYSICS 139, 175101 (2013) Dynamic neutron scattering from conformational dynamics. I. Theory  

E-Print Network [OSTI]

#12;THE JOURNAL OF CHEMICAL PHYSICS 139, 175101 (2013) Dynamic neutron scattering from, a conformational dynamics theory of dynamical neutron and X-ray scattering is developed, follow- ing our previous spectroscopy (dynamic neutron scattering) probes time correlations on the sub pico- to microsec- ond timescales

13

Administering Workforce Discipline  

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

To provide requirements and responsibilities for administering workforce discipline that includes disciplinary, adverse, and alternative corrective actions in the Department of Energy (DOE).

2014-10-27T23:59:59.000Z

14

Chemical dynamics in the gas phase: Time-dependent quantum mechanics of chemical reactions  

SciTech Connect (OSTI)

A major goal of this research is to obtain an understanding of the molecular reaction dynamics of three and four atom chemical reactions using numerically accurate quantum dynamics. This work involves: (i) the development and/or improvement of accurate quantum mechanical methods for the calculation and analysis of the properties of chemical reactions (e.g., rate constants and product distributions), and (ii) the determination of accurate dynamical results for selected chemical systems, which allow one to compare directly with experiment, determine the reliability of the underlying potential energy surfaces, and test the validity of approximate theories. This research emphasizes the use of recently developed time-dependent quantum mechanical methods, i.e. wave packet methods.

Gray, S.K. [Argonne National Laboratory, IL (United States)

1993-12-01T23:59:59.000Z

15

Thermo-chemical dynamics and chemical quasi-equilibrium of plasmas in thermal non-equilibrium  

SciTech Connect (OSTI)

We examine both processes of ionization by electron and heavy-particle impact in spatially uniform plasmas at rest in the absence of external forces. A singular perturbation analysis is used to study the following physical scenario, in which thermal relaxation becomes much slower than chemical reactions. First, electron-impact ionization is investigated. The dynamics of the system rapidly becomes close to a slow dynamics manifold that allows for defining a unique chemical quasi-equilibrium for two-temperature plasmas and proving that the second law of thermodynamics is satisfied. Then, all ionization reactions are taken into account simultaneously, leading to a surprising conclusion: the inner layer for short time scale (or time boundary layer) directly leads to thermal equilibrium. Global thermo-chemical equilibrium is reached within a short time scale, involving only chemical reactions, even if thermal relaxation through elastic collisions is assumed to be slow.

Massot, Marc [Laboratoire EM2C, UPR 288 CNRS - Ecole Centrale Paris (France); Graille, Benjamin [Laboratoire de Mathematiques d'Orsay, UMR 8628 CNRS - Universite Paris-Sud (France); Magin, Thierry E. [Aeronautics and Aerospace Department, von Karman Institute for Fluid Dynamics (Belgium)

2011-05-20T23:59:59.000Z

16

Polymerization dynamics of double-stranded biopolymers: Chemical kinetic approach  

E-Print Network [OSTI]

Polymerization dynamics of double-stranded biopolymers: Chemical kinetic approach Evgeny B 19 November 2004; accepted 20 December 2004; published online 10 March 2005 The polymerization by the processes that take place during their polymerization. However, our understanding of the coupling between

17

Molecular Dynamics Simulations of Solutions at Constant Chemical Potential  

E-Print Network [OSTI]

Molecular Dynamics studies of chemical processes in solution are of great value in a wide spectrum of applications, that range from nano-technology to pharmaceutical chemistry. However, these calculations are affected by severe finite-size effects, such as the solution being depleted as the chemical process proceeds, that influence the outcome of the simulations. To overcome these limitations, one must allow the system to exchange molecules with a macroscopic reservoir, thus sampling a Grand-Canonical ensemble. Despite the fact that different remedies have been proposed, this still represents a key challenge in molecular simulations. In the present work we propose the C$\\mu$MD method, which introduces an external force that controls the environment of the chemical process of interest. This external force, drawing molecules from a finite reservoir, maintains the chemical potential constant in the region where the process takes place. We have applied the C$\\mu$MD method to the paradigmatic case of urea crystall...

Perego, Claudio; Parrinello, Michele

2015-01-01T23:59:59.000Z

18

Gas-Phase Molecular Dynamics: Theoretical Studies In Spectroscopy and Chemical Dynamics  

SciTech Connect (OSTI)

The main goal of this program is the development and application of computational methods for studying chemical reaction dynamics and molecular spectroscopy in the gas phase. We are interested in developing rigorous quantum dynamics algorithms for small polyatomic systems and in implementing approximate approaches for complex ones. Particular focus is on the dynamics and kinetics of chemical reactions and on the rovibrational spectra of species involved in combustion processes. This research also explores the potential energy surfaces of these systems of interest using state-of-the-art quantum chemistry methods, and extends them to understand some important properties of materials in condensed phases and interstellar medium as well as in combustion environments.

Yu H. G.; Muckerman, J.T.

2012-05-29T23:59:59.000Z

19

Work Force Discipline  

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

The order provides guidance and procedures and states responsibilities for maintaining work force discipline in DOE. Chg 1, dated 3-11-85; Chg 2, dated 1-6-86; Chg 3, dated 3-21-89; Chg 4, dated 8-2-90; Chg 5, dated 3-9-92; Chg 6, dated 8-21-92, cancels Chg 5.

1983-03-23T23:59:59.000Z

20

STRATEGIESEMPLOYERS ANY CHEMISTRY DISCIPLINE  

E-Print Network [OSTI]

Service Industries: chemical, pharmaceutical, waste man- agement, environmental, food, feed, healthcare Quality Assurance/Quality Control Management Government agencies: U.S. Food and Drug Administration U departments Industries: Chemical, pharmaceutical, biotechnology, food, feed, cosmetics, agricultural

New Hampshire, University of

Note: This page contains sample records for the topic "disciplines chemical dynamics" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


21

Analysis of forward and inverse problems in chemical dynamics and spectroscopy  

SciTech Connect (OSTI)

The overall scope of this research concerns the development and application of forward and inverse analysis tools for problems in chemical dynamics and chemical kinetics. The chemical dynamics work is specifically associated with relating features in potential surfaces and resultant dynamical behavior. The analogous inverse research aims to provide stable algorithms for extracting potential surfaces from laboratory data. In the case of chemical kinetics, the focus is on the development of systematic means to reduce the complexity of chemical kinetic models. Recent progress in these directions is summarized below.

Rabitz, H. [Princeton Univ., NJ (United States)

1993-12-01T23:59:59.000Z

22

Toward Structural Dynamics: Protein Motions Viewed by Chemical Shift Modulations and Direct Detection of CN  

E-Print Network [OSTI]

Toward Structural Dynamics: Protein Motions Viewed by Chemical Shift Modulations and Direct of anti-correlated fluctuations) in R-helices. This extends the prospects of structure- dynamics, several groups have proposed to investigate the existence of structure-dynamics relationships. We like

23

Dynamics of excitation pulses with attractive interaction: Kinematic analysis and chemical wave experiments  

E-Print Network [OSTI]

Dynamics of excitation pulses with attractive interaction: Kinematic analysis and chemical wave present a theoretical analysis of stacking and destacking wave trains in excitable reaction-diffusion systems with anomalous velocity-wavelength dependence. For linearized dispersion relations, kinematic

Steinbock, Oliver

24

Crossed molecular beam studies of atmospheric chemical reaction dynamics  

SciTech Connect (OSTI)

The dynamics of several elementary chemical reactions that are important in atmospheric chemistry are investigated. The reactive scattering of ground state chlorine or bromine atoms with ozone molecules and ground state chlorine atoms with nitrogen dioxide molecules is studied using a crossed molecular beams apparatus with a rotatable mass spectrometer detector. The Cl + O{sub 3} {yields} ClO + O{sub 2} reaction has been studied at four collision energies ranging from 6 kcal/mole to 32 kcal/mole. The derived product center-of-mass angular and translational energy distributions show that the reaction has a direct reaction mechanism and that there is a strong repulsion on the exit channel. The ClO product is sideways and forward scattered with respect to the Cl atom, and the translational energy release is large. The Cl atom is most likely to attack the terminal oxygen atom of the ozone molecule. The Br + O{sub 3} {yields} ClO + O{sub 2} reaction has been studied at five collision energies ranging from 5 kcal/mole to 26 kcal/mole. The derived product center-of-mass angular and translational energy distributions are quite similar to those in the Cl + O{sub 3} reaction. The Br + O{sub 3} reaction has a direct reaction mechanism similar to that of the Cl + O{sub 3} reaction. The electronic structure of the ozone molecule seems to play the central role in determining the reaction mechanism in atomic radical reactions with the ozone molecule. The Cl + NO{sub 2} {yields} ClO + NO reaction has been studied at three collision energies ranging from 10.6 kcal/mole to 22.4 kcal/mole. The center-of-mass angular distribution has some forward-backward symmetry, and the product translational energy release is quite large. The reaction proceeds through a short-lived complex whose lifetime is less than one rotational period. The experimental results seem to show that the Cl atom mainly attacks the oxygen atom instead of the nitrogen atom of the NO{sub 2} molecule.

Zhang, Jingsong

1993-04-01T23:59:59.000Z

25

FLUID DYNAMICAL AND MODELING ISSUES OF CHEMICAL FLOODING FOR ENHANCED OIL RECOVERY  

E-Print Network [OSTI]

FLUID DYNAMICAL AND MODELING ISSUES OF CHEMICAL FLOODING FOR ENHANCED OIL RECOVERY Prabir Daripa developed flows in enhanced oil recovery (EOR). In a recent exhaustive study [Transport in Porous Media, 93 fluid flows that occur in porous media during tertiary dis- placement process of chemical enhanced oil

Daripa, Prabir

26

Technical Report TR-013 March 2001 Research Section, Vancouver Forest Region, BCMOF Research Disciplines: Ecology ~ Geology ~ Geomorphology ~ Hydrology ~ Pedology ~ Silviculture ~ Wildlife  

E-Print Network [OSTI]

Disciplines: Ecology ~ Geology ~ Geomorphology ~ Hydrology ~ Pedology ~ Silviculture ~ Wildlife TR-013 Hydrology March 2001 Roberts Creek Study Forest: Pre-harvest chemical characteristics of three S6 creeks-751-7001 Research Disciplines: Ecology ~ Geology ~ Geomorphology ~ Hydrology ~ Pedology ~ Silviculture ~ Wildlife

27

Are We Closing the School Discipline Gap?  

E-Print Network [OSTI]

D.J. , (Ed). Closing the School Discipline Gap: EquitableBooth, E.A. (2011). Breaking schoolsí rules: A statewidestudy of how school discipline relates to studentsí success

Losen, Daniel; Hodson, Cheri; Keith II, Michael A; Morrison, Katrina; Belway, Shakti

2015-01-01T23:59:59.000Z

28

Disciplined Message Passing Edward A. Lee  

E-Print Network [OSTI]

Program, and the following companies: Agilent, Bosch, HSBC, Lockheed-Martin, National Instruments: Agilent, Bosch, HSBC, Lockheed-Martin, National Instruments, and Toyota. #12;Disciplined Message Passing 2

29

ORIGIN OF CHEMICAL AND DYNAMICAL PROPERTIES OF THE GALACTIC THICK DISK  

SciTech Connect (OSTI)

We adopt a scenario in which the Galactic thick disk was formed by minor merging between the first generation of the Galactic thin disk (FGTD) and a dwarf galaxy about {approx}9 Gyr ago and thereby investigate chemical and dynamical properties of the Galactic thick disk. In this scenario, the dynamical properties of the thick disk have long been influenced both by the mass growth of the second generation of the Galactic thin disk (i.e., the present thin disk) and by its non-axisymmetric structures. On the other hand, the early star formation history and chemical evolution of the thin disk was influenced by the remaining gas of the thick disk. Based on N-body simulations and chemical evolution models, we investigate the radial metallicity gradient, structural and kinematical properties, and detailed chemical abundance patterns of the thick disk. Our numerical simulations show that the ancient minor merger event can significantly flatten the original radial metallicity gradient of the FGTD, in particular, in the outer part, and also can be responsible for migration of inner metal-rich stars into the outer part (R > 10 kpc). The simulations show that the central region of the thick disk can develop a bar due to dynamical effects of a separate bar in the thin disk. Whether or not rotational velocities (V{sub {phi}}) can correlate with metallicities ([Fe/H]) for the simulated thick disks depends on the initial metallicity gradients of the FGTDs. The simulated orbital eccentricity distributions in the thick disk for models with higher mass ratios ({approx}0.2) and lower orbital eccentricities ({approx}0.5) of minor mergers are in good agreement with the corresponding observations. The simulated V{sub {phi}}-|z| relation of the thick disk in models with low orbital inclination angles of mergers are also in good agreement with the latest observational results. The vertical metallicity gradient of the simulated thick disk is rather flat or very weakly negative in the solar neighborhood. Our Galactic chemical evolution models show that if we choose two distinctive timescales for star formation in the thin and thick disks, then the models can explain both the observed metallicity distribution functions and correlations between [Mg/Fe] and [Fe/H] for the two disks in a self-consistent manner. We discuss how the early star formation history and chemical evolution of the Galactic thin disk can be influenced by the pre-existing thick disk.

Bekki, Kenji [ICRAR, M468, University of Western Australia, Crawley, Western Australia, 6009 (Australia); Tsujimoto, Takuji [National Astronomical Observatory, Mitaka-shi, Tokyo 181-8588 (Japan)

2011-09-01T23:59:59.000Z

30

Live Cell Chemical Profiling of Temporal Redox Dynamics in a Photoautotrophic Cyanobacterium  

SciTech Connect (OSTI)

Protein reduction-oxidation (redox) modification is an important mechanism that allows microorganisms to sense environmental changes and initiate cellular responses. We have developed a quantitative chemical probe approach for live cell labeling of proteins that are sensitive to redox modifications. We utilize this in vivo strategy to identify 176 proteins undergoing ~5-10 fold dynamic redox change in response to nutrient limitation and subsequent replenishment in the photoautotrophic cyanobacterium, Synechococcus sp. PCC 7002. We detect redox changes in as little as 30 seconds after nutrient perturbation, and oscillations in reduction and oxidation for 60 minutes following the perturbation. Many of the proteins undergoing dynamic redox transformations participate in the major components for the production (photosystems and electron transport chains) or consumption (Calvin-Benson cycle and protein synthesis) of reductant and/or energy in photosynthetic organisms. Thus, our in vivo approach reveals new redox-susceptible proteins, in addition to validating those previously identified in vitro.

Sadler, Natalie C.; Melnicki, Matthew R.; Serres, Margrethe H.; Merkley, Eric D.; Chrisler, William B.; Hill, Eric A.; Romine, Margaret F.; Kim, Sangtae; Zink, Erika M.; Datta, Suchitra; Smith, Richard D.; Beliaev, Alex S.; Konopka, Allan; Wright, Aaron T.

2014-01-01T23:59:59.000Z

31

INDIVIDUAL DISCIPLINES: HUMAN RESOURCES DIVISION MARKETING  

E-Print Network [OSTI]

INDIVIDUAL DISCIPLINES: HUMAN RESOURCES DIVISION MARKETING AND RECRUITMENT CAMPAIGN STAFF .:|:. Client: Y. Mankin, Computing Sciences #12;DESIGN MAIN MENU 1 2 344 4 5WEBSITES Joint BioEnergy Institute

32

PhD Chemical Engineering MS Chemical Engineering  

E-Print Network [OSTI]

1 PhD Chemical Engineering MS Chemical Engineering Bylaws Gene and Linda Voiland School of Chemical Engineering and Bioengineering College of Engineering and Architecture Approved by Voiland School facultyD Chemical Engineering, MS Chemical Engineering B. Discipline: Edgar, et al.1 provide a succinct description

Collins, Gary S.

33

DISCIPLINE OF RADIATION THERAPY SAFETY DOCUMENT  

E-Print Network [OSTI]

DISCIPLINE OF RADIATION THERAPY SAFETY DOCUMENT Contents Page 1. Health & Safety arrangements 1 Inspection 1.4 Hazard Reporting 1.5 Security in College 1.6 Out of Hours Working 1.7 Management of Work.7 Management of Work-related Stress Those experiencing symptoms of work-related stress should raise this matter

O'Mahony, Donal E.

34

STATE OF THE DISCIPLINE POVERTY, RACE, AND  

E-Print Network [OSTI]

STATE OF THE DISCIPLINE POVERTY, RACE, AND ANTIPOVERTY POLICY BEFORE AND AFTER HURRICANE KATRINA1 response toward those affected, it did not lead to a serious discourse about the nature of poverty earnings are lower and poverty rates are higher for African Americans than for Whites, the economic

Shyy, Wei

35

Chemical crosslinking and mass spectrometry studies of the structure and dynamics of membrane proteins and receptors.  

SciTech Connect (OSTI)

Membrane proteins make up a diverse and important subset of proteins for which structural information is limited. In this study, chemical cross-linking and mass spectrometry were used to explore the structure of the G-protein-coupled photoreceptor bovine rhodopsin in the dark-state conformation. All experiments were performed in rod outer segment membranes using amino acid 'handles' in the native protein sequence and thus minimizing perturbations to the native protein structure. Cysteine and lysine residues were covalently cross-linked using commercially available reagents with a range of linker arm lengths. Following chemical digestion of cross-linked protein, cross-linked peptides were identified by accurate mass measurement using liquid chromatography-fourier transform mass spectrometry and an automated data analysis pipeline. Assignments were confirmed and, if necessary, resolved, by tandem MS. The relative reactivity of lysine residues participating in cross-links was evaluated by labeling with NHS-esters. A distinct pattern of cross-link formation within the C-terminal domain, and between loop I and the C-terminal domain, emerged. Theoretical distances based on cross-linking were compared to inter-atomic distances determined from the energy-minimized X-ray crystal structure and Monte Carlo conformational search procedures. In general, the observed cross-links can be explained by re-positioning participating side-chains without significantly altering backbone structure. One exception, between C3 16 and K325, requires backbone motion to bring the reactive atoms into sufficient proximity for cross-linking. Evidence from other studies suggests that residues around K325 for a region of high backbone mobility. These findings show that cross-linking studies can provide insight into the structural dynamics of membrane proteins in their native environment.

Haskins, William E.; Leavell, Michael D.; Lane, Pamela; Jacobsen, Richard B.; Hong, Joohee; Ayson, Marites J.; Wood, Nichole L.; Schoeniger, Joseph S.; Kruppa, Gary Hermann; Sale, Kenneth L.; Young, Malin M.; Novak, Petr

2005-03-01T23:59:59.000Z

36

DISCIPLINE AND TERMINATION POLICY Employees covered by this policy  

E-Print Network [OSTI]

DISCIPLINE AND TERMINATION POLICY Employees covered by this policy This policy applies to all non to discipline, suspend with or without pay, or terminate employees for just cause. Just cause includes to discipline or termination for just cause, the University reserves the right to demote, suspend or terminate

37

ChemicalPhysicsLetters270 (1997) 476-483 Electrostatics by Brownian dynamics  

E-Print Network [OSTI]

ELSEVIER 30May 1997 ChemicalPhysicsLetters270 (1997) 476-483 CHEMICAL PHYSICS LETTERS, Jerusalem 91904, Israel Received26 December1996;in finalform31 March1997 Abstract The isomorphism between is demonstrated in simple illustrative calculations. © 1997 Elsevier Science B.V. 1. Introduction Electrostatic

Agmon, Noam

38

Computational fluid dynamics modeling of chemical looping combustion process with calcium sulphate oxygen carrier - article no. A19  

SciTech Connect (OSTI)

To concentrate CO{sub 2} in combustion processes by efficient and energy-saving ways is a first and very important step for its sequestration. Chemical looping combustion (CLC) could easily achieve this goal. A chemical-looping combustion system consists of a fuel reactor and an air reactor. Two reactors in the form of interconnected fluidized beds are used in the process: (1) a fuel reactor where the oxygen carrier is reduced by reaction with the fuel, and (2) an air reactor where the reduced oxygen carrier from the fuel reactor is oxidized with air. The outlet gas from the fuel reactor consists of CO{sub 2} and H{sub 2}O, while the outlet gas stream from the air reactor contains only N{sub 2} and some unused O{sub 2}. The water in combustion products can be easily removed by condensation and pure carbon dioxide is obtained without any loss of energy for separation. Until now, there is little literature about mathematical modeling of chemical-looping combustion using the computational fluid dynamics (CFD) approach. In this work, the reaction kinetic model of the fuel reactor (CaSO{sub 4}+ H{sub 2}) is developed by means of the commercial code FLUENT and the effects of partial pressure of H{sub 2} (concentration of H{sub 2}) on chemical looping combustion performance are also studied. The results show that the concentration of H{sub 2} could enhance the CLC performance.

Baosheng Jin; Rui Xiao; Zhongyi Deng; Qilei Song [Southeast University (China). Key Laboratory of Clean Coal Power Generation and Combustion Technology of Ministry of Education

2009-07-01T23:59:59.000Z

39

Extension Note Research Disciplines: Ecology ~ Geology ~ Geomorphology ~ Hydrology ~ Pedology ~ Silviculture ~ Wildlife  

E-Print Network [OSTI]

Extension Note Research Disciplines: Ecology ~ Geology ~ Geomorphology ~ Hydrology ~ Pedology and imple- #12;Research Disciplines: Ecology ~ Geology ~ Geomorphology ~ Hydrology ~ Pedology ~ Silviculture

40

Research Disciplines: Ecology ~ Geology ~ Geomorphology ~ Hydrology ~ Pedology ~ Silviculture Systems ~ Wildlife Using Combined Snowpack and  

E-Print Network [OSTI]

Research Disciplines: Ecology ~ Geology ~ Geomorphology ~ Hydrology ~ Pedology ~ Silviculture, BCMOF 1 Research Disciplines: Ecology ~ Geology ~ Geomorphology ~ Hydrology ~ Pedology ~ Silviculture

Note: This page contains sample records for the topic "disciplines chemical dynamics" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


41

Technical Report Research Disciplines: Ecology ~ Geology ~ Geomorphology ~ Hydrology ~ Pedology ~ Silviculture ~ Wildlife  

E-Print Network [OSTI]

Technical Report Research Disciplines: Ecology ~ Geology ~ Geomorphology ~ Hydrology ~ Pedology Research Disciplines: Ecology ~ Geology ~ Geomorphology ~ Hydrology ~ Pedology ~ Silviculture ~ Wildlife

42

Technical Report Research Disciplines: Ecology ~ Geology ~ Geomorphology ~ Hydrology ~ Pedology ~ Silviculture ~ Wildlife  

E-Print Network [OSTI]

Technical Report Research Disciplines: Ecology ~ Geology ~ Geomorphology ~ Hydrology ~ Pedology Disciplines: Ecology ~ Geology ~ Geomorphology ~ Hydrology ~ Pedology ~ Silviculture ~ Wildlife CONTENTS

43

Extension Note Research Disciplines: Ecology ~ Geology ~ Geomorphology ~ Hydrology ~ Pedology ~ Silviculture ~ Wildlife  

E-Print Network [OSTI]

Extension Note Research Disciplines: Ecology ~ Geology ~ Geomorphology ~ Hydrology ~ Pedology Disciplines: Ecology ~ Geology ~ Geomorphology ~ Hydrology ~ Pedology ~ Silviculture ~ Wildlife Extension Note

44

Research Disciplines: Ecology ~ Geology ~ Geomorphology ~ Hydrology ~ Pedology ~ Silviculture Systems ~ Wildlife Assessing Habitat Quality of  

E-Print Network [OSTI]

Research Disciplines: Ecology ~ Geology ~ Geomorphology ~ Hydrology ~ Pedology ~ Silviculture Disciplines: Ecology ~ Geology ~ Geomorphology ~ Hydrology ~ Pedology ~ Silviculture ~ Wildlife CONTENTS

45

Research Disciplines: Ecology ~ Geology ~ Geomorphology ~ Hydrology ~ Pedology ~ Silviculture Systems ~ Wildlife Relationships between Elevation and Slope  

E-Print Network [OSTI]

Research Disciplines: Ecology ~ Geology ~ Geomorphology ~ Hydrology ~ Pedology ~ Silviculture Research Disciplines: Ecology ~ Geology ~ Geomorphology ~ Hydrology ~ Pedology ~ Silviculture ~ Wildlife

46

Quantitative Determination of Chemical Processes by Dynamic Nuclear Polarization Enhanced Nuclear Magnetic Resonance Spectroscopy  

E-Print Network [OSTI]

Dissolution dynamic nuclear polarization (DNP) provides several orders of magnitude of NMR signal enhancement by converting the much larger electron spin polarization to nuclear spin polarization. Polarization occurs at low temperature (1.4K...

Zeng, Haifeng

2012-07-16T23:59:59.000Z

47

Development and application of chemical tools for investigating dynamic processes in cell migration  

E-Print Network [OSTI]

Cell migration is a dynamic process essential for many fundamental physiological functions, including wound repair and the immune response. Migration relies on precisely orchestrated events that are regulated in a spatially ...

Goguen, Brenda Nicole

2011-01-01T23:59:59.000Z

48

DRAFT - DOE O 333.1, Administering Work Force Discipline  

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

To provide requirements and responsibilities for administering workforce discipline that includes disciplinary, adverse, and alternative corrective actions in the Department of Energy (DOE).

49

fll INTRODUCTION Solid mechanics is a fundamental discipline which, in  

E-Print Network [OSTI]

generation technologies such as fusion, nuclear and gas turbine power, aerospace and surface trans- nortation, solid mechanics is a central discipline for hydrocarbon resource extraction by drilling, hydraulic

50

The VENUS/NWChem Software Package. Tight Coupling Between Chemical Dynamics Simulations and Electronic Structure Theory  

SciTech Connect (OSTI)

The interface for VENUS and NWChem, and the resulting software package for direct dynamics simulations are described. The coupling of the two codes is considered to be a tight coupling. The two codes are compiled and linked together and act as one executable with data being passed between the two codes through routine calls. The advantages of this type of coupling are discussed. The interface has been designed to have as little interference as possible with the core codes of both VENUS and NWChem. VENUS is the code that propagates the direct dynamics trajectories and, therefore, is the program that drives the overall execution of VENUS/NWChem. VENUS has remained an essentially sequential code, which uses the highly parallel structure of NWChem. Subroutines of the interface which accomplish the data transmission and communication between the two computer programs are described. Recent examples of the use of VENUS/NWChem for direct dynamics simulations are summarized.

Lourderaj, Upakarasamy; Sun, Rui; De Jong, Wibe A.; Windus, Theresa L.; Hase, William L.

2014-03-01T23:59:59.000Z

51

The Development of Dynamic Operational Risk Assessment in Oil/Gas and Chemical Industries  

E-Print Network [OSTI]

of reliability and safety, conventional approaches that are static reveal their weakness in nature when applied to dynamic processes[7, 8]. For instance, fault tree/event tree analysis (FTA/ETA)[9], initially applied in nuclear power plants, collects a set...

Yang, Xiaole

2011-08-08T23:59:59.000Z

52

Modeling particle formation during low-pressure silane oxidation: Detailed chemical kinetics and aerosol dynamics  

E-Print Network [OSTI]

that the generation of SiOHx species from fast gas- phase reactions can significantly degrade film quality. Based conservation equations and a moment-type aerosol dynamics model were formulated for a batch reactor undergoing to impurity diffusion.1 During LPCVD film deposition rates are limited by the gas-phase nucleation

Zachariah, Michael R.

53

Physically and chemically stable ionic liquid-infused textured surfaces showing excellent dynamic omniphobicity  

SciTech Connect (OSTI)

A fluorinated and hydrophobic ionic liquid (IL), 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl) imide, effectively served as an advantageous lubricating liquid for the preparation of physically and chemically stable omniphobic surfaces based on slippery liquid-infused porous surfaces. Here, we used particulate microstructures as supports, prepared by the chemical vapor deposition of 1,3,5,7-tetramethylcyclotetrasiloxane and subsequent surface modification with (3-aminopropyl)triethoxysilane. Confirmed by SEM and contact angle measurements, the resulting IL-infused microtextured surfaces are smooth and not only water but also various low surface tension liquids can easily slide off at low substrate tilt angles of <5į, even after exposure to high temperature, vacuum, and UV irradiation.

Miranda, Daniel F.; Urata, Chihiro; Masheder, Benjamin; Dunderdale, Gary J.; Hozumi, Atsushi, E-mail: a.hozumi@aist.go.jp [National Institute of Advanced Industrial Science and Technology (AIST), 2266-98, Anagahora, Shimo-Shidami, Moriyama-ku, Nagoya, Aichi 463-8560 (Japan); Yagihashi, Makoto [Nagoya Municipal Industrial Research Institute, Rokuban, Atsuta-ku, Nagoya 456-0058 (Japan)

2014-05-01T23:59:59.000Z

54

REPRESENTING AEROSOL DYNAMICS AND PROPERTIES IN CHEMICAL TRANSPORT MODELS BY THE METHOD OF MOMENTS.  

SciTech Connect (OSTI)

Atmospheric aerosols, suspensions of solid or liquid particles, are an important multi-phase system. Aerosols scatter and absorb shortwave (solar) radiation, affecting climate (Charlson et al., 1992; Schwartz, 1996) and visibility; nucleate cloud droplet formation, modifying the reflectivity of clouds (Twomey et al., 1984; Schwartz and Slingo, 1996) as well as contributing to composition of cloudwater and to wet deposition (Seinfeld and Pandis, 1998); and affect human health through inhalation (NRC, 1998). Existing and prospective air quality regulations impose standards on concentrations of atmospheric aerosols to protect human health and welfare (EPA, 1998). Chemical transport and transformation models representing the loading and geographical distribution of aerosols and precursor gases are needed to permit development of effective and efficient strategies for meeting air quality standards, and for examining aerosol effects on climate retrospectively and prospectively for different emissions scenarios. Important aerosol properties and processes depend on their size distribution: light scattering, cloud nucleating properties, dry deposition, and penetration into airways of lungs. The evolution of the mass loading itself depends on particle size because of the size dependence of growth and removal processes. For these reasons it is increasingly recognized that chemical transport and transformation models must represent not just the mass loading of atmospheric particulate matter but also the aerosol microphysical properties and the evolution of these properties if aerosols are to be accurately represented in these models. If the size distribution of the aerosol is known, a given property can be evaluated as the integral of the appropriate kernel function over the size distribution. This has motivated the approach of determining aerosol size distribution, and of explicitly representing this distribution and its evolution in chemical transport models.

SCHWARTZ,S.E.; MCGRAW,R.; BENKOVITZ,C.M.; WRIGHT,D.L.

2001-04-01T23:59:59.000Z

55

Dynamic behavior of chemical exchange column in a water detritiation system for a fusion reactor  

SciTech Connect (OSTI)

The dynamic behavior of a CECE column used for a demonstration reactor (DEMO) plant has been studied. In the case where the column was filled with natural water, the time required to achieve steady state was almost the same as that for the column operated under the total reflux mode. The manipulated variables were flow rate of the bottom stream for the control of the bottom tritium concentration, and flow rate of the hydrogen stream for the control of the top tritium concentration. For both the variables, the response curve was expressed by the first-order lag system, and a PID controller could be applied. (authors)

Yamanishi, T.; Iwai, Y. [Tritium Engineering Group, JAEA, Tokai, Ibaraki, 319-1195 (Japan)

2008-07-15T23:59:59.000Z

56

Chemical accelerator studies of reaction dynamics: Ar^+ + CH4 ? ArH^+ + CH3  

E-Print Network [OSTI]

, the reactions Ar+ + GH4 - ArH+ + CHs Ar+ + CD4 - ArD+ + CDs (2a) (2b) The Journal of Chemical Physics. Vol. 62. No.7. 1 April 1975 were studied over the energy range 0.4-25 eV c. m. Velocity and angular distributions of the ionic products have been...!.) Consequently, the dissociation energy Do(Ar-H+} ~ 3.90 eV, resulting in energies of 6.06 and 6.24 eV for dissociation of ArH+ into Ar+(2PS/2} + Hand Ar+(2pI/2} +H, respectively. With a value of D(H-CHs} =4.406 eV,27 the following reaction enthalpies are ob...

Wyatt, J. R.; Strattan, L. W.; Snyder, S. C.; Hierl, Peter M.

1975-01-01T23:59:59.000Z

57

Electrical Engineering is a diverse discipline encompassing computer and information  

E-Print Network [OSTI]

70 ELECTRICAL Electrical Engineering is a diverse discipline encompassing computer and information environmental engineering and manufacturing to semiconductors and telecommunications. The Electrical Engineering Technology and the Signal and Image Processing institute. PROGRAMS AVAILABLE Electrical Engineering Bachelor

Rohs, Remo

58

Electrical Engineering is a diverse discipline encompassing computer and information  

E-Print Network [OSTI]

70 ELECTRICAL Electrical Engineering is a diverse discipline encompassing computer and information environmental engineering and manufacturing to semiconductors and telecommunications. The Electrical Engineering Technology and the Signal and Image Processing institute. PROGRAMS AVAILABLE · Electrical Engineering

Rohs, Remo

59

Penn State Multi-Discipline Tribology Group and Energy Institute Studies.  

SciTech Connect (OSTI)

This presentation is a summary of the current research activities on fuels and lubricants in the Multi-discipline Tribology group and the engine test group in the Combustion Laboratory of the Pennsylvania State University. The progress areas discussed in this summary include those found in Table 1. Table 1. RESEARCH AREAS: Diesel Engine Emission Reduction; Oxygenated Fuels; Improved Friction Fuels; Vegetable Oil Lubricants; Extended Drain Lubricants; Effect of Chemical Structure on Friction and Wear. The research is of interest either directly or indirectly to the goal of this workshop, diesel engine emissions reduction. The current projects at Penn State in the areas listed above will be discussed.

Perez, Joseph

2001-08-05T23:59:59.000Z

60

Research Disciplines: Ecology ~ Geology ~ Geomorphology ~ Hydrology ~ Pedology ~ Silviculture Systems ~ Wildlife Using Airphotos to Interpret  

E-Print Network [OSTI]

Research Disciplines: Ecology ~ Geology ~ Geomorphology ~ Hydrology ~ Pedology ~ Silviculture March 2004 Research Section, Coast Forest Region, BCMOF 1 Research Disciplines: Ecology ~ Geology

Note: This page contains sample records for the topic "disciplines chemical dynamics" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


61

Extension Note Research Disciplines: Ecology ~ Geology ~ Geomorphology ~ Hydrology ~ Pedology ~ Silviculture ~ Wildlife  

E-Print Network [OSTI]

Extension Note Research Disciplines: Ecology ~ Geology ~ Geomorphology ~ Hydrology ~ Pedology-748-1331. mdeact@shaw.ca #12;Research Disciplines: Ecology ~ Geology ~ Geomorphology ~ Hydrology ~ Pedology

62

Technical Report Research Disciplines: Ecology ~ Geology ~ Geomorphology ~ Hydrology ~ Pedology ~ Silviculture Systems ~ Wildlife  

E-Print Network [OSTI]

Technical Report Research Disciplines: Ecology ~ Geology ~ Geomorphology ~ Hydrology ~ Pedology.for.gov.bc.ca/vancouvr/research/research_index.htm #12;Research Disciplines: Ecology ~ Geology ~ Geomorphology ~ Hydrology ~ Pedology ~ Silviculture

63

Technical Report Research Disciplines: Ecology ~ Geology ~ Geomorphology ~ Hydrology ~ Pedology ~ Silviculture ~ Wildlife  

E-Print Network [OSTI]

Technical Report Research Disciplines: Ecology ~ Geology ~ Geomorphology ~ Hydrology ~ Pedology.for.gov.bc.ca/vancouvr/research/research_index.htm #12;Research Disciplines: Ecology ~ Geology ~ Geomorphology ~ Hydrology ~ Pedology ~ Silviculture

64

Extension Note Research Disciplines: Ecology ~ Geology ~ Geomorphology ~ Hydrology ~ Pedology ~ Silviculture ~ Wildlife  

E-Print Network [OSTI]

Extension Note Research Disciplines: Ecology ~ Geology ~ Geomorphology ~ Hydrology ~ Pedology, BC, V9J 1G4 #12;Research Disciplines: Ecology ~ Geology ~ Geomorphology ~ Hydrology ~ Pedology

65

Extension Note Research Disciplines: Ecology ~ Geology ~ Geomorphology ~ Hydrology ~ Pedology ~ Silviculture ~ Wildlife  

E-Print Network [OSTI]

Extension Note Research Disciplines: Ecology ~ Geology ~ Geomorphology ~ Hydrology ~ Pedology Rd., Black Creek, BC, V9J 1G4 #12;Research Disciplines: Ecology ~ Geology ~ Geomorphology ~ Hydrology

66

The geography of the knowledge dynamics in genomics?.  

E-Print Network [OSTI]

??This research aims to come to an understanding of the knowledge dynamics of the relatively Ďnewí scientific discipline: genomics. Hereby this research makes use ofÖ (more)

Ventura da Silva, A.G.

2011-01-01T23:59:59.000Z

67

Towards a Discipline of Geospatial Distributed Event Based Systems  

E-Print Network [OSTI]

Towards a Discipline of Geospatial Distributed Event Based Systems Annie Liu Computer Science, Caltech 1200 E California Blvd Pasadena, CA 91125, USA mani@cms.caltech.edu ABSTRACT A geospatial system is one in which the state space in- cludes one, two or three-dimensional space and time. A geospatial

Heaton, Thomas H.

68

Extension Note Research Disciplines: Ecology ~ Geology ~ Geomorphology ~ Hydrology ~ Pedology ~ Silviculture ~  

E-Print Network [OSTI]

Extension Note Research Disciplines: Ecology ~ Geology ~ Geomorphology ~ Hydrology ~ Pedology Hudson and Axel Anderson KEYWORDS: Water management, Coastal watersheds, hydrological modeling CITATIONPractice. ResearchSection,Coast ForestRegion, BCMOF,Nanaimo, BC. Extension Note EN-022. EN-022 Hydrology March 2006

69

Extension Note Research Disciplines: Ecology ~ Geology ~ Geomorphology ~ Hydrology ~ Pedology ~ Silviculture ~  

E-Print Network [OSTI]

Extension Note Research Disciplines: Ecology ~ Geology ~ Geomorphology ~ Hydrology ~ Pedology,Tsitika Watershed.Research Section,CoastForest Region,BCMOF, Nanaimo, BC. Extension Note EN-021. EN-021 Hydrology ~ Geomorphology ~ Hydrology ~ Pedology ~ Silviculture ~ Wildlife Extension Note EN-021 March 2006 Forest Research

70

GUIDELINES FOR STUDENTS AND STAFF ON STUDENT DISCIPLINE PROCEDURES  

E-Print Network [OSTI]

GUIDELINES FOR STUDENTS AND STAFF ON STUDENT DISCIPLINE PROCEDURES Contents 1. Introduction 2. Definition of Disciplinary Offences 3. Preliminary Procedures for Considering Disciplinary Offences 4. Procedures for the Consideration of Minor Offences 5. Procedures for the Consideration of Category B Offences

Greenaway, Alan

71

Computing Across the Disciplines: Using Cell Phones in Experiments  

E-Print Network [OSTI]

Computing Across the Disciplines: Using Cell Phones in Experiments Robert Juranitch University School of Milw. rjuranitch@usmk12.org #12;Apology #12;A High School Student #12;Cell Phone Saturation · 31 percent of teens between 14 and 17 years old have a smart phone. · Usage has tripled every two

Brylow, Dennis

72

Sustainable Future Stevens students bridged disciplines to advance  

E-Print Network [OSTI]

Building a Sustainable Future Stevens students bridged disciplines to advance sustainable living which collects and analyzes data to preserve energy and teach occupants to live more sustainably of our sustainable future. 4stevens.edu/ecohabit (1) Ecohabit was the only competition house that used

Yang, Eui-Hyeok

73

Chemical Engineering The George R. Brown School of Engineering  

E-Print Network [OSTI]

environments. Courses in mathematics, chemistry, physics, and computational engineering provide the background120 Chemical Engineering The George R. Brown School of Engineering Chair Kyriacos Zygourakis to create a focus area in one of the following four disciplines: bioengineering, environmental engineering

Richards-Kortum, Rebecca

74

Technical Report Research Disciplines: Ecology ~ Geology ~ Geomorphology ~ Hydrology ~ Pedology ~ Silviculture ~ Wildlife  

E-Print Network [OSTI]

Technical Report Research Disciplines: Ecology ~ Geology ~ Geomorphology ~ Hydrology ~ Pedology ~ Geology ~ Geomorphology ~ Hydrology ~ Pedology ~ Silviculture ~ Wildlife CONTENTS SUMMARY

75

Research Disciplines: Ecology ~ Geology ~ Geomorphology ~ Hydrology ~ Pedology ~ Silviculture Systems ~ Wildlife Biology, Ecology, and Management  

E-Print Network [OSTI]

Research Disciplines: Ecology ~ Geology ~ Geomorphology ~ Hydrology ~ Pedology ~ Silviculture: Ecology ~ Geology ~ Geomorphology ~ Hydrology ~ Pedology ~ Silviculture ~ Wildlife CONTENTS ABSTRACT

76

Extension Note Research Disciplines: Ecology ~ Geology ~ Geomorphology ~ Hydrology ~ Pedology ~ Silviculture ~ Wildlife  

E-Print Network [OSTI]

Extension Note Research Disciplines: Ecology ~ Geology ~ Geomorphology ~ Hydrology ~ Pedology: Ecology ~ Geology ~ Geomorphology ~ Hydrology ~ Pedology ~ Silviculture ~ Wildlife Extension Note EN-007

77

Research Disciplines: Ecology ~ Geology ~ Geomorphology ~ Hydrology ~ Pedology ~ Silviculture Systems ~ Wildlife Silvicultural Treatments for Enhancing  

E-Print Network [OSTI]

Research Disciplines: Ecology ~ Geology ~ Geomorphology ~ Hydrology ~ Pedology ~ Silviculture ~ Geology ~ Geomorphology ~ Hydrology ~ Pedology ~ Silviculture ~ Wildlife CONTENTS EXECUTIVE SUMMARY

78

THE JOURNAL OF CHEMICAL PHYSICS 134, 134306 (2011) Two-and three-body photodissociation dynamics of diiodobromide  

E-Print Network [OSTI]

, University of California, Berkeley, California 94720, USA and Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA (Received 12 November 2010; accepted 9 March 2011 in solution-phase chemistry4­6 and can be used as a re- dox mediator in dye-sensitized solar cells.7 It has

Neumark, Daniel M.

79

Chemical Imaging and Dynamical Studies of Reactivity and Emergent Behavior in Complex Interfacial Systems. Final Technical Report  

SciTech Connect (OSTI)

This research program explored the efficacy of using molecular-level manipulation, imaging and scanning tunneling spectroscopy in conjunction with supersonic molecular beam gas-surface scattering to significantly enhance our understanding of chemical processes occurring on well-characterized interfaces. One program focus was on the spatially-resolved emergent behavior of complex reaction systems as a function of the local geometry and density of adsorbate-substrate systems under reaction conditions. Another focus was on elucidating the emergent electronic and related reactivity characteristics of intentionally constructed single and multicomponent atom- and nanoparticle-based materials. We also examined emergent chirality and self-organization in adsorbed molecular systems where collective interactions between adsorbates and the supporting interface lead to spatial symmetry breaking. In many of these studies we combined the advantages of scanning tunneling (STM) and atomic force (AFM) imaging, scanning tunneling local electronic spectroscopy (STS), and reactive supersonic molecular beams to elucidate precise details of interfacial reactivity that had not been observed by more traditional surface science methods. Using these methods, it was possible to examine, for example, the differential reactivity of molecules adsorbed at different bonding sites in conjunction with how reactivity is modified by the local configuration of nearby adsorbates. At the core of this effort was the goal of significantly extending our understanding of interfacial atomic-scale interactions to create, with intent, molecular assemblies and materials with advanced chemical and physical properties. This ambitious program addressed several key topics in DOE Grand Challenge Science, including emergent chemical and physical properties in condensed phase systems, novel uses of chemical imaging, and the development of advanced reactivity concepts in combustion and catalysis including carbon management. These activities directly benefitted national science objectives in the areas of chemical energy production and advanced materials development.

Sibener, Steven J. [University of Chicago, IL (United States)] [University of Chicago, IL (United States)

2014-03-11T23:59:59.000Z

80

THE JOURNAL OF CHEMICAL PHYSICS 134, 054512 (2011) Water dynamics in small reverse micelles in two solvents: Two-dimensional  

E-Print Network [OSTI]

= 2 (1.7 nm diameter) Aerosol-OT (AOT)/water reverse micelles in carbon tetrachloride and in isooctane that the reverse micelle dynamics are the same within experimental error regardless of whether isooctane or carbon tetrachloride is used as the organic phase. Two time scales are observed in the vibrational echo data, 1 and 10

Fayer, Michael D.

Note: This page contains sample records for the topic "disciplines chemical dynamics" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


81

Dynamics and spike trains statistics in conductance-based Integrate-and-Fire neural networks with chemical and electric synapses  

E-Print Network [OSTI]

We investigate the effect of electric synapses (gap junctions) on collective neuronal dynamics and spike statistics in a conductance-based Integrate-and-Fire neural network, driven by a Brownian noise, where conductances depend upon spike history. We compute explicitly the time evolution operator and show that, given the spike-history of the network and the membrane potentials at a given time, the further dynamical evolution can be written in a closed form. We show that spike train statistics is described by a Gibbs distribution whose potential can be approximated with an explicit formula, when the noise is weak. This potential form encompasses existing models for spike trains statistics analysis such as maximum entropy models or Generalized Linear Models (GLM). We also discuss the different types of correlations: those induced by a shared stimulus and those induced by neurons interactions.

Rodrigo Cofrť; Bruno Cessac

2012-12-14T23:59:59.000Z

82

Fluid dynamics, particulate segregation, chemical processes, and natural ore analog discussions that relate to the potential for criticality in Hanford tanks  

SciTech Connect (OSTI)

This report presents an in-depth review of the potential for nuclear criticality to occur in Hanford defense waste tanks during past, current and future safe storage and maintenance operations. The report also briefly discusses the potential impacts of proposed retrieval activities, although retrieval was not a main focus of scope. After thorough review of fluid dynamic aspects that focus on particle segregation, chemical aspects that focus on solubility and adsorption processes that might concentrate plutonium and/or separate plutonium from the neutron absorbers in the tank waste, and ore-body formation and mining operations, the interdisciplinary team has come to the conclusion that there is negligible risk of nuclear critically under existing storage conditions in Hanford site underground waste storage tanks. Further, for the accident scenarios considered an accidental criticality is incredible.

Barney, G.S.

1996-09-27T23:59:59.000Z

83

Technical Report TR-014 May 2001 Research Section, Vancouver Forest Region, BCMOF Research Disciplines: Ecology ~ Geology ~ Geomorphology ~ Hydrology ~ Pedology ~ Silviculture ~ Wildlife  

E-Print Network [OSTI]

Disciplines: Ecology ~ Geology ~ Geomorphology ~ Hydrology ~ Pedology ~ Silviculture ~ Wildlife just like Forest Region, BCMOF Research Disciplines: Ecology ~ Geology ~ Geomorphology ~ Hydrology ~ Pedology

84

Ion-pairing dynamics of Li{sup +} and SCN{sup -} in dimethylformamide solution: Chemical exchange two-dimensional infrared spectroscopy  

SciTech Connect (OSTI)

Ultrafast two-dimensional infrared (2DIR) spectroscopy has been proven to be an exceptionally useful method to study chemical exchange processes between different vibrational chromophores under thermal equilibria. Here, we present experimental results on the thermal equilibrium ion pairing dynamics of Li{sup +} and SCN{sup -} ions in N,N-dimethylformamide. Li{sup +} and SCN{sup -} ions can form a contact ion pair (CIP). Varying the relative concentration of Li{sup +} in solution, we could control the equilibrium CIP and free SCN{sup -} concentrations. Since the CN stretch frequency of Li-SCN CIP is blue-shifted by about 16 cm{sup -1} from that of free SCN{sup -} ion, the CN stretch IR spectrum is a doublet. The temperature-dependent IR absorption spectra reveal that the CIP formation is an endothermic (0.57 kJ/mol) process and the CIP state has larger entropy by 3.12 J/(K mol) than the free ion states. Since the two ionic configurations are spectrally distinguishable, this salt solution is ideally suited for nonlinear IR spectroscopic investigations to study ion pair association and dissociation dynamics. Using polarization-controlled IR pump-probe methods, we first measured the lifetimes and orientational relaxation times of these two forms of ionic configurations. The vibrational population relaxation times of both the free ion and CIP are about 32 ps. However, the orientational relaxation time of the CIP, which is {approx}47 ps, is significantly longer than that of the free SCN{sup -}, which is {approx}7.7 ps. This clearly indicates that the effective moment of inertia of the CIP is much larger than that of the free SCN{sup -}. Then, using chemical exchange 2DIR spectroscopy and analyzing the diagonal peak and cross-peak amplitude changes with increasing the waiting time, we determined the contact ion pair association and dissociation time constants that are found to be 165 and 190 ps, respectively. The results presented and discussed in this paper are believed to be important, not only because the ion-pairing dynamics is one of the most fundamental physical chemistry problems but also because such molecular ion-ion interactions are of critical importance in understanding Hofmeister effects on protein stability.

Lee, Kyung-Koo; Park, Kwang-Hee; Kwon, Donghyun; Choi, Jun-Ho; Son, Hyewon [Department of Chemistry, Research Institute for Natural Sciences, Korea University, Seoul 136-701 (Korea, Republic of); Park, Sungnam; Cho, Minhaeng [Department of Chemistry, Research Institute for Natural Sciences, Korea University, Seoul 136-701 (Korea, Republic of); Multidimensional Spectroscopy Laboratory, Korea Basic Science Institute, Seoul 136-713 (Korea, Republic of)

2011-02-14T23:59:59.000Z

85

Insights from the Outskirts: Chemical and Dynamical Properties in the outer Parts of the Fornax Dwarf Spheroidal Galaxy  

E-Print Network [OSTI]

We present radial velocities and [Fe/H] abundances for 340 stars in the Fornax dwarf spheroidal from R~16,000 spectra. The targets have been obtained in the outer parts of the galaxy, a region which has been poorly studied before. Our sample shows a wide range in [Fe/H], between -0.5 and -3.0 dex, in which we detect three subgroups. Removal of stars belonging to the most metal-rich population produces a truncated metallicity distribution function that is identical to Sculptor, indicating that these systems have shared a similar early evolution, only that Fornax experienced a late, intense period of star formation (SF). The derived age-metallicity relation shows a fast increase in [Fe/H] at early ages, after which the enrichment flattens significantly for stars younger than ~8 Gyr. Additionally, the data indicate a strong population of stars around 4 Gyr, followed by a second rapid enrichment in [Fe/H]. A leaky-box chemical enrichment model generally matches the observed relation but does not predict a signifi...

Hendricks, Benjamin; Walker, Matthew; Johnson, Christian I; Penarrubia, Jorge; Gilmore, Gerard

2014-01-01T23:59:59.000Z

86

Cite this: Lab Chip, 2013, 13, 1457 Unconventional microfluidics: expanding the discipline  

E-Print Network [OSTI]

Cite this: Lab Chip, 2013, 13, 1457 Unconventional microfluidics: expanding the discipline DOI: 10*a Since its inception, the discipline of microfluidics has been harnessed for innovations-effect of stereotyping microfluidics as a platform for medical diagnostics and miniaturized lab processes

87

DEPARTMENT OF CHEMICAL AND PETROLEUM ENGINEERING Research at the Schulich School of Engineering  

E-Print Network [OSTI]

DEPARTMENT OF CHEMICAL AND PETROLEUM ENGINEERING Research at the Schulich School of Engineering #12;The research programs in the department of chemical and petroleum engineering are known is a multidisciplinary field of research that spans chemical, civil, mechanical and petroleum engineering disciplines

Calgary, University of

88

COOEE bitumen: chemical aging  

E-Print Network [OSTI]

We study chemical aging in "COOEE bitumen" using molecular dynamic simulations. The model bitumen is composed of four realistic molecule types: saturated hydrocarbon, resinous oil, resin, and asphaltene. The aging reaction is modelled by the chemical reaction: "2 resins $\\rightarrow$ 1 asphaltene". Molecular dynamic simulations of four bitumen compositions, obtained by a repeated application of the aging reaction, are performed. The stress autocorrelation function, the fluid structure, the rotational dynamics of the plane aromatic molecules, and the diffusivity of each molecule, are determined for the four different compositions. The aging reaction causes a significant dynamics slowdown, which is correlated to the aggregation of asphaltene molecules in larger and dynamically slower nanoaggregates. Finally, a detailed description of the role of each molecule types in the aggregation and aging processes is given.

Lemarchand, Claire A; Dyre, Jeppe C; Hansen, Jesper S

2013-01-01T23:59:59.000Z

89

Disease Ecology: Community Structure and Pathogen Dynamics [Review  

E-Print Network [OSTI]

BOOKS & MEDIA Disease Ecology: Community Structure and Pathogen Dynamics Sharon K. Collinge and Chris Ray, editors Oxford University Press, Cary, North Carolina, 2006 ISBN: 0198567073 Pages: 227; Price: US $124.50 The disciplines of community...

Peterson, A. Townsend

2007-01-01T23:59:59.000Z

90

P U R S U I T A N D P R O M O T I O N O F S C I E N C E CHEMICAL ENGINEERING VS OTHER  

E-Print Network [OSTI]

P U R S U I T A N D P R O M O T I O N O F S C I E N C E CHEMICAL ENGINEERING VS OTHER ENGINEERING DISCIPLINES Chemical engineering had a unique start, in con- trast to the other engineering disciplines was that universities took a lead and started courses in Chemical Engineering and Chemical Technology. These were

Srinivasan, N.

91

Multi-discipline Waste Acceptance Process at the Nevada National Security Site - 13573  

SciTech Connect (OSTI)

The Nevada National Security Site low-level radioactive waste disposal facility acceptance process requires multiple disciplines to ensure the protection of workers, the public, and the environment. These disciplines, which include waste acceptance, nuclear criticality, safety, permitting, operations, and performance assessment, combine into the overall waste acceptance process to assess low-level radioactive waste streams for disposal at the Area 5 Radioactive Waste Management Site. Four waste streams recently highlighted the integration of these disciplines: the Oak Ridge Radioisotope Thermoelectric Generators and Consolidated Edison Uranium Solidification Project material, West Valley Melter, and classified waste. (authors)

Carilli, Jhon T. [US Department Of Energy, Nevada Site Office, P. O. Box 98518, Las Vegas, Nevada 89193-8518 (United States)] [US Department Of Energy, Nevada Site Office, P. O. Box 98518, Las Vegas, Nevada 89193-8518 (United States); Krenzien, Susan K. [Navarro-Intera, LLC, P. O. Box 98952, Las Vegas, Nevada 89193-8952 (United States)] [Navarro-Intera, LLC, P. O. Box 98952, Las Vegas, Nevada 89193-8952 (United States)

2013-07-01T23:59:59.000Z

92

From Theory to Application: Extreme Fire, Resilience, Restoration, and Education in Social-Ecological Disciplines  

E-Print Network [OSTI]

fire in resprouting shrublands, and the need for broader participation in research as part of undergraduate education. The chapters in this dissertation serve as a case-study approach across multiple scientific disciplines that overcome the traditions...

Twidwell, Dirac

2012-07-16T23:59:59.000Z

93

electrical engineering (EE) Electrical Engineering is a diverse discipline encompassing computer and  

E-Print Network [OSTI]

to students in the School of Engineering (these students should pursue the Multimedia and Creative62 electrical engineering (EE) Electrical Engineering is a diverse discipline encompassing computer environmental engineering and manufacturing to semiconductors and telecommunications. The Electrical Engineering

Rohs, Remo

94

Electrical Engineering is a diverse discipline encompassing computer and information systems, controls, lasers,  

E-Print Network [OSTI]

70 ELECTRICAL Electrical Engineering is a diverse discipline encompassing computer and information environmental engineering and manufacturing to semiconductors and telecommunications. The Electrical Engineering Technology and the Signal and Image Processing institute. PROGRAMS AVAILABLE · Electrical Engineering

Rohs, Remo

95

electrical (EE) Electrical Engineering is a diverse discipline encompassing computer and  

E-Print Network [OSTI]

66 electrical (EE) Electrical Engineering is a diverse discipline encompassing computer environmental engineering and manufacturing to semiconductors and telecommunica- tions. The Electrical Technology and the Signal and Image Processing institute. Programs Available · Electrical Engineering

Rohs, Remo

96

To appear in Topics in Cognitive Science How Can Philosophy be a True Cognitive Science Discipline?  

E-Print Network [OSTI]

and cognitive neuroscience. Second, analyses of mental representation address both their vehicle in the autonomous disciplines. Indeed, for those discussions that do not afford linkage to the rest of cognitive

Bechtel, William

97

Technical Report TR-014 May 2001 Research Section, Vancouver Forest Region, BCMOF Research Disciplines: Ecology ~ Geology ~ Geomorphology ~ Hydrology ~ Pedology ~ Silviculture ~ Wildlife  

E-Print Network [OSTI]

Disciplines: Ecology ~ Geology ~ Geomorphology ~ Hydrology ~ Pedology ~ Silviculture ~ Wildlife TR-014 Tools9T 6E9, 250-751-7001 Research Disciplines: Ecology ~ Geology ~ Geomorphology ~ Hydrology ~ Pedology Research Disciplines: Ecology ~ Geology ~ Geomorphology ~ Hydrology ~ Pedology ~ Silviculture ~ Wildlife

98

Innovations in Companion Animal Health Introducing dynamic new treatments, developing stronger diagnostic tools, pioneering veterinary disciplines,  

E-Print Network [OSTI]

that school faculty members have achieved. The vital role of taurine in the feline diet ≠ Veterinary nutritionists collaborating with cardiologists in the clinic first documented the link between a lack of dietary the Comparative Cancer Center were the first to identify a protein that appears to play a key role

Schladow, S. Geoffrey

99

1.23 Constraints on Seismic Models from Other Disciplines Implications for Mantle Dynamics and  

E-Print Network [OSTI]

, and different algorithms for inverting the global seis- mic data. A review of the recent advances in global surface 817 1.23.2.3.5 Boundary conditions at CMB 819 1.23.2.3.6 Determining viscous flow Green functions Response Functions for the Mantle 824 1.23.2.5 Depth Dependence of Mantle Viscosity 825 1.23.3 Modeling

Long, Bernard

100

Technical Report TR-011 March 2000 Research Section, Vancouver Forest Region, BCMOF Research Disciplines: Ecology ~ Geology ~ Geomorphology ~ Hydrology ~ Pedology ~ Silviculture ~ Wildlife  

E-Print Network [OSTI]

Disciplines: Ecology ~ Geology ~ Geomorphology ~ Hydrology ~ Pedology ~ Silviculture ~ Wildlife TR-011 Disciplines: Ecology ~ Geology ~ Geomorphology ~ Hydrology ~ Pedology ~ Silviculture ~ Wildlife #12;Technical ~ Geology ~ Geomorphology ~ Hydrology ~ Pedology ~ Silviculture ~ Wildlife Page Summary

Note: This page contains sample records for the topic "disciplines chemical dynamics" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


101

Studies in combustion dynamics  

SciTech Connect (OSTI)

The goal of this program is to develop a fundamental understanding and a quantitative predictive capability in combustion modeling. A large part of the understanding of the chemistry of combustion processes comes from {open_quotes}chemical kinetic modeling.{close_quotes} However, successful modeling is not an isolated activity. It necessarily involves the integration of methods and results from several diverse disciplines and activities including theoretical chemistry, elementary reaction kinetics, fluid mechanics and computational science. Recently the authors have developed and utilized new tools for parallel processing to implement the first numerical model of a turbulent diffusion flame including a {open_quotes}full{close_quotes} chemical mechanism.

Koszykowski, M.L. [Sandia National Laboratories, Livermore, CA (United States)

1993-12-01T23:59:59.000Z

102

DOE Chair of Excellence Professorship in Environmental Disciplines  

SciTech Connect (OSTI)

The United States (US) nuclear weapons program during the Cold War left a legacy of radioactive, hazardous, chemical wastes and facilities that may seriously harm the environment and people even today. Widespread public concern about the environmental pollution has created an extraordinary demand for the treatment and disposal of wastes in a manner to protect the public health and safety. The pollution abatement and environmental protection require an understanding of technical, regulatory, economic, permitting, institutional, and public policy issues. Scientists and engineers have a major role in this national effort to clean our environment, especially in developing alternative solutions and evaluation criteria and designing the necessary facilities to implement the solutions. The objective of the DOE Chair of Excellence project is to develop a high quality educational and research program in environmental engineering at North Carolina A&T State University (A&T). This project aims to increase the number of graduate and undergraduate students trained in environmental areas while developing a faculty concentrated in environmental education and research. Although A&T had a well developed environmental program prior to the Massie Chair grant, A&T's goal is to become a model of excellence in environmental engineering through the program's support. The program will provide a catalyst to enhance collaboration of faculty and students among various engineering departments to work together in a focus research area. The collaboration will be expanded to other programs at A&T. The past research focus areas include: hazardous and radioactive waste treatment and disposal fate and transport of hazardous chemicals in the environment innovative technologies for hazardous waste site remediation pollution prevention Starting from 2005, the new research focus was in the improvement of accuracy for radioactive contaminant transport models by ensemble based data assimilation. The specific objectives are to: 1). improve model accuracy for use in minimizing health and environmental risk, and 2). improve the decision making process in the selection and application of available technologies for long-term monitoring and safeguard operation at NNSA sites.

Shoou-Yuh Chang

2013-01-31T23:59:59.000Z

103

Extension Note Research Disciplines: Ecology ~ Geology ~ Geomorphology ~ Hydrology ~ Pedology ~ Silviculture ~ Wildlife  

E-Print Network [OSTI]

Extension Note Research Disciplines: Ecology ~ Geology ~ Geomorphology ~ Hydrology ~ Pedology.Understanding how the hydrologic cycle is affected by climate, trees and plants, soils, geology, topography, springs, or any Figure 1. The hydrologic cycle, or water cycle (courtesy of the US Geological Survey

104

The NU Transportation Center Icarus Society presents.... "Airline Capacity Discipline: Where and  

E-Print Network [OSTI]

The NU Transportation Center Icarus Society presents.... "Airline Capacity Discipline: Where and to What Extent? Aaron J. Gellman Professor of Transportation Northwestern University Transportation Center and Kellogg School of Management Thursday Nov. 29, 2012 3:00 pm Location: Transportation Center Chambers Hall

Bustamante, Fabi√°n E.

105

EARTH SCIENCESEARTH SCIENCESEARTH SCIENCES This major includes a spectrum of disciplines focused on understanding the  

E-Print Network [OSTI]

EARTH SCIENCESEARTH SCIENCESEARTH SCIENCES This major includes a spectrum of disciplines focused this understanding to read the record of earth history written in rocks and sediments, and on developing models by humans. Opportunities for Students Sigma Gamma Epsilon: The Omega Chapter of the national honorary earth

Krylov, Anna I.

106

AVAILABILITY OF UNIVERSITY DATA FOR ACADEMIC PROGRAM REVIEW draft 8/22/11 Discipline (CIP)  

E-Print Network [OSTI]

AVAILABILITY OF UNIVERSITY DATA FOR ACADEMIC PROGRAM REVIEW draft 8/22/11 Discipline (CIP) Degree with a sufficient n. 2. CIP=federal taxonomy called Classification of Instructional Programs; some depts have multiple CIPS, and some CIPS are represented by multiple departments. CIP does not map cleanly

107

The Innovation Paradox: Reconciling Creativity & Discipline How Winning Organizations Combine Inspiration With Perspiration  

E-Print Network [OSTI]

microprocessor was designed by a handful of engineers; the Centrioo required several hundred.] Yet creativityThe Innovation Paradox: Reconciling Creativity & Discipline How Winning Organizations Combine products globally find that their very size inhibits the creativity needed to invent such products

Kolodny, Avinoam

108

2012/2013 Entry-level Salary Information for Recent Graduates in Agriculture and Related Disciplines  

E-Print Network [OSTI]

1 2012/2013 Entry-level Salary Information for Recent Graduates in Agriculture and Related Disciplines Auburn University - College of Agriculture Clemson University ­ College of Agriculture, Forestry of Agricultural Sciences Iowa State University ­ College of Agriculture and Life Sciences Michigan State

109

Crossed beam reaction of cyano radicals with hydrocarbon molecules. III. Chemical dynamics of vinylcyanide ,,C2H3CN;X 1  

E-Print Network [OSTI]

of the olefin to give a long-lived CH2CH2CN intermediate. This collision complex fragments through a tight exit have been performed since they occur commonly in nature and play a key part in a wide variety, pyroly- sis, gas discharges, and in situ chemical reactions. In our laboratory we have recently developed

Kaiser, Ralf I.

110

Energy dissipation via quantum-chemical hysteresis during high-pressure compression: A first-principles molecular dynamics study of phosphates  

E-Print Network [OSTI]

-phosphates (TPs) and zinc phosphates (ZPs) to changes in pressure p and temperature T is studied through firstEnergy dissipation via quantum-chemical hysteresis during high-pressure compression: A first to signifi- cant energy dissipation, which contributes to the high friction coefficients of ZP anti-wear pads

Mueser, Martin

111

DOE contractor's meeting on chemical toxicity  

SciTech Connect (OSTI)

The Office of Health and Environmental Research (OHER) is required to determine the potential health and environmental effects associated with energy production and use. To ensure appropriate communication among investigators and scientific disciplines that these research studies represent, OHER has sponsored workshops. This document provides a compilation of activities at the Third Annual DOE/OHER Workshop. This year's workshop was broadened to include all OHER activities identified as within the chemical effects area. The workshop consisted of eight sessions entitled Isolation and Detection of Toxic chemicals; Adduct Formation and Repair; Chemical Toxicity (Posters); Metabolism and Genotoxicity; Inhalation Toxicology; Gene Regulation; Metals Toxicity; and Biological Mechanisms. This document contains abstracts of the information presented by session.

Not Available

1987-01-01T23:59:59.000Z

112

Chemical Education Today 1466 Journal of Chemical Education Vol. 78 No. 11 November 2001 JChemEd.chem.wisc.edu  

E-Print Network [OSTI]

Chemical Education Today 1466 Journal of Chemical Education · Vol. 78 No. 11 November 2001 · JChemEd.chem.wisc.edu Chemical Kinetics and Reaction Dynamics by Paul L. Houston McGraw-Hill Higher Education: New York, 2001. 330 pp. Hardcover. ISBN 0-07-243537-2. $84.50. reviewed by John Krenos Paul Houston's Chemical

Houston, Paul L.

113

Chemical Science  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation Proposed New Substation SitesStandingtheirCheck In &Chemical LabelChemical

114

Photon level chemical classification using digital compressive ...  

E-Print Network [OSTI]

Oct 12, 2012 ... dynamic chemical processes, is the time required to collect and analyze hyperspectral ..... Section 3.2 for more information) using functions from Matlab 7.13 ..... ically simulated score plot for the n-hexane/methylcyclohexane.

David S. Wilcox

2012-11-09T23:59:59.000Z

115

Chemical Occurrences  

Broader source: Energy.gov [DOE]

Classification of Chemical Occurrence Reports into the following four classes: Occurrences characterized by serious energy release, injury or exposure requiring medical treatment, or severe environmental damage, Occurrences characterized by minor injury or exposure, or reportable environmental release, Occurrences that were near misses including notable safety violations and Minor occurrences.

116

Chemical Evolution  

E-Print Network [OSTI]

In this series of lectures we first describe the basic ingredients of galactic chemical evolution and discuss both analytical and numerical models. Then we compare model results for the Milky Way, Dwarf Irregulars, Quasars and the Intra-Cluster- Medium with abundances derived from emission lines. These comparisons allow us to put strong constraints on the stellar nucleosynthesis and the mechanisms of galaxy formation.

Francesca Matteucci

2007-04-05T23:59:59.000Z

117

SUPPORTING CHEMICALS  

E-Print Network [OSTI]

The High Production Volume (HPV) Challenge Program 1 was conceived as a voluntary initiative aimed at developing and making publicly available screening-level health and environmental effects information on chemicals manufactured in or imported into the United States in quantities greater than one million pounds per year. In the Challenge Program, producers and importers of HPV chemicals voluntarily sponsored chemicals; sponsorship entailed the identification and initial assessment of the adequacy of existing toxicity data/information, conducting new testing if adequate data did not exist, and making both new and existing data and information available to the public. Each complete data submission contains data on 18 internationally agreed to ďSIDSĒ (Screening Information Data Set 1,2) endpoints that are screening-level indicators of potential hazards (toxicity) for humans or the environment. The Environmental Protection Agencyís Office of Pollution Prevention and Toxics (OPPT) is evaluating the data submitted in the HPV Challenge Program on approximately 1400 sponsored chemicals by developing hazard characterizations (HCs). These HCs consist of an evaluation of the quality and completeness of the data set provided in the Challenge Program submissions. They are not intended to be definitive statements regarding the possibility of unreasonable risk of

See Section

118

Chemical Management  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-Up fromDepartmentTieCelebrate Earth DayFuels Chemical Kinetic Modeling of1 DOEKinetics

119

September 11, 2008 12:55 Dynamical Systems monotonereacs Dynamical Systems  

E-Print Network [OSTI]

September 11, 2008 12:55 Dynamical Systems monotonereacs Dynamical Systems Vol. 00, No. 00, Month 200x, 1­30 RESEARCH ARTICLE Monotonicity in chemical reaction systems Murad Banajia, a Department) This paper discusses the question of when the dynamical systems arising from chemical reac- tion networks

Banaji,. Murad

120

Chemical composition of Earth-like planets  

E-Print Network [OSTI]

Models of planet formation are mainly focused on the accretion and dynamical processes of the planets, neglecting their chemical composition. In this work, we calculate the condensation sequence of the different chemical elements for a low-mass protoplanetary disk around a solar-type star. We incorporate this sequence of chemical elements (refractory and volatile elements) in our semi-analytical model of planet formation which calculates the formation of a planetary system during its gaseous phase. The results of the semi-analytical model (final distributions of embryos and planetesimals) are used as initial conditions to develope N-body simulations that compute the post-oligarchic formation of terrestrial-type planets. The results of our simulations show that the chemical composition of the planets that remain in the habitable zone has similar characteristics to the chemical composition of the Earth. However, exist differences that can be associated to the dynamical environment in which they were formed.

Ronco, M P; Marboeuf, U; Alibert, Y; de ElŪa, G C; Guilera, O M

2015-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "disciplines chemical dynamics" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


121

CHEMICAL ENGINEERING AND MANUFACTURING CHEMICAL ENGINEERING  

E-Print Network [OSTI]

CHEMICAL ENGINEERING AND MANUFACTURING CHEMICAL ENGINEERING Objective Chemical Engineers manufacturing, etc. Now that students have a background on Chemical Engineers, it is time for the activity. Blue frosting e. Green frosting f. Pink frosting g. Purple frosting h. Sprinkle sorting i. Sprinkle

Provancher, William

122

Chemical dynamics in time and energy space  

SciTech Connect (OSTI)

The development of a versatile picosecond ultraviolet/vacuum ultraviolet temporal spectrometer and its potential use for measuring internal energy redistribution in isolated molecules are described in detail. A detailed description of the double-pass Nd:YAG amplifier and the dye amplifiers is given with the pulse energies achieved in the visible, ultraviolet, and vacuum ultraviolet. The amplified visible pulses are shown to be of sub-picosecond duration and near transform limited. The instrument`s temporal response ({le}10 ps) is derived from an instrument limited measurement of the dissociation lifetime of methyl iodide at 266 nm. The methyl iodide experiment is used to discuss the various sources of noise and background signals that are intrinsic to this type of experiment. Non-time-resolved experiments measuring the branching ratio and kinetic energy distributions of products from the 193 nm photodissociation of cyclopentadiene and thiophene are presented. These studies were done using the molecular beam Photofragment Translational Spectroscopy (PTS) technique. The results from the cyclopentadiene experiment confirm that H atom elimination to yield the cyclopentadienyl radical is the dominant dissociation channel. A barrier of {ge}5 kcal/mol can be understood in terms of the delocalization of the radical electron of the cyclopentadienyl fragment. A concerted elimination yielding cyclopropene and acetylene was also observed and is proposed to occur via a bicyclo-[2.1.0]pent-2-ene intermediate. Two other channels, yielding acetylene plus the CH{sub 2}CHCH triplet carbene, and CH{sub 2} plus 1-buten-3-yne, are postulated to occur via ring opening. The implications of the experimental results for bulk thermal oxidation and pyrolysis models are discussed. The thiophene experiment shows six competing dissociation channels. The postulated intermediates for the various thiophene dissociation channels include bicyclo, ring opened, and possibly ring contracted forms.

Myers, J.D.

1993-04-01T23:59:59.000Z

123

UCF-3.0124 Discipline and Termination for Cause of Non-unit Faculty and A&P Staff Members.  

E-Print Network [OSTI]

UCF-3.0124 Discipline and Termination for Cause of Non-unit Faculty and A&P Staff Members. (1) Just cause shall be defined as: (a) Incompetence; or (b) Misconduct. (2) Termination and Suspension. (a) The appointment of a non-unit faculty or an A&P staff member may be terminated or suspended during its term

Van Stryland, Eric

124

Computer Science Curriculum Revision Undergraduate programs in computing-related disciplines began to emerge in the 1960s. At  

E-Print Network [OSTI]

1 Computer Science Curriculum Revision Background Undergraduate programs in computing-related disciplines began to emerge in the 1960s. At that time there were only three kinds of computing-related programs: computer science, electrical engineering, and information systems. Each program covered a well

Zanibbi, Richard

125

Animal Health Diagnostic Center Test and Fee Schedule Test Name Test Fee Discipline Test Days Lag** Samples Container Coolant Comments  

E-Print Network [OSTI]

Animal Health Diagnostic Center Test and Fee Schedule Test Name Test Fee Discipline Test Days Lag** Samples Container Coolant Comments Equine Tests Equine Tests Acid Fast Stain (for bacteria) M-F 1-2 days 1 4 hours for equine. For more information, see Equine Cushing's Tests or AppendixC. For Equine only

Keinan, Alon

126

Animal Health Diagnostic Center Test and Fee Schedule Test Name Test Fee Discipline Test Days Lag** Samples Container Coolant Comments  

E-Print Network [OSTI]

Animal Health Diagnostic Center Test and Fee Schedule Test Name Test Fee Discipline Test Days Lag** Samples Container Coolant Comments Feline Tests Feline Tests Acid Fast Stain (for bacteria) M-F 1-2 days 1 Tests, Equine Cushings Tests , Feline Adrenal Function Tests, or Appendix C. Endocrinology22.00 ACTH

Keinan, Alon

127

Animal Health Diagnostic Center Test and Fee Schedule Test Name Test Fee Discipline Test Days Lag** Samples Container Coolant Comments  

E-Print Network [OSTI]

Animal Health Diagnostic Center Test and Fee Schedule Test Name Test Fee Discipline Test Days Lag** Samples Container Coolant Comments Canine Tests Canine Tests Acid Fast Stain (for bacteria) M-F 1-2 days 1 in insulated container with ice pack. For more information, see Canine Adrenal & Pituitary Function Tests

Keinan, Alon

128

Department of Chemical Engineering Thermal and Flow Engineering Laboratory  

E-Print Network [OSTI]

Aug.2013 Department of Chemical Engineering Thermal and Flow Engineering Laboratory Ron Zevenhoven.1 Fluid statics 6.2 Fluid dynamics: viscosity, laminar / turbulent flow, boundary layer 6.3 Fluid dynamics: internal flows / tube flows 6.4 Fluid dynamics: pressure drop & energy dissipation in tube systems 6.5 Flow

Zevenhoven, Ron

129

Department of Chemical Engineering Thermal and Flow Engineering Laboratory  

E-Print Network [OSTI]

August 12 Department of Chemical Engineering Thermal and Flow Engineering Laboratory Ron Zevenhoven.1 Fluid statics 6.2 Fluid dynamics: viscosity, laminar / turbulent flow, boundary layer 6.3 Fluid dynamics: internal flows / tube flows 6.4 Fluid dynamics: pressure drop & energy dissipation in tube systems 6.5 Flow

Zevenhoven, Ron

130

Texas AgriLife Research Procedure 32.02.02.A1.01 Discipline and Dismissal Page 1 of 2 Texas AgriLife Research Procedures  

E-Print Network [OSTI]

Texas AgriLife Research Procedure 32.02.02.A1.01 Discipline and Dismissal Page 1 of 2 Texas AgriLife Research Procedures 32.02.02.A1.01 DISCIPLINE AND DISMISSAL Approved: June 2, 2000 Revised: November 15, 2001 October 3, 2007 March 21, 2011 Next Scheduled Review: March 21, 2013 PROCEDURE STATEMENT

131

Microfluidic chemical reaction circuits  

SciTech Connect (OSTI)

New microfluidic devices, useful for carrying out chemical reactions, are provided. The devices are adapted for on-chip solvent exchange, chemical processes requiring multiple chemical reactions, and rapid concentration of reagents.

Lee, Chung-cheng (Irvine, CA); Sui, Guodong (Los Angeles, CA); Elizarov, Arkadij (Valley Village, CA); Kolb, Hartmuth C. (Playa del Rey, CA); Huang, Jiang (San Jose, CA); Heath, James R. (South Pasadena, CA); Phelps, Michael E. (Los Angeles, CA); Quake, Stephen R. (Stanford, CA); Tseng, Hsian-rong (Los Angeles, CA); Wyatt, Paul (Tipperary, IE); Daridon, Antoine (Mont-Sur-Rolle, CH)

2012-06-26T23:59:59.000Z

132

Chemical and Biomolecular Engineering  

E-Print Network [OSTI]

Chemical and Biomolecular Engineering Combining theory and neutron scattering to understand molecular diffusion in porous materials David Sholl School of Chemical & Biomolecular Engineering Georgia Institute of Technology #12;Chemical and Biomolecular Engineering Porous materials www

Pennycook, Steve

133

>> engineering.wustl.edu Across Disciplines. Across the World.TM  

E-Print Network [OSTI]

.wustl.edu | 1 We aim to prepare you for leadership roles. Today's college students want to have an impact in Lopata Gallery; Department of Energy, Environmental & Chemical Engineering guest seminar held in Brauer studies, visual communications, political science, history, entrepreneurship, foreign language, dance

Subramanian, Venkat

134

chemical analysis | EMSL  

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

chemical analysis chemical analysis Leads No leads are available at this time. Magnesium behavior and structural defects in Mg+ ion implanted silicon carbide. Abstract: As a...

135

Incremental Integration Tools for Chemical Engineering: An Industrial Application of Triple Graph  

E-Print Network [OSTI]

and the components of the chemical plant, simulation models for steady-state and dynamic simulations, etc. Design representations of a chemical plant have to be kept consistent with each other. Incremental integration tools). In chemical engineering design, a chemical plant is described from different per- spectives by a set

Westfechtel, Bernhard

136

Guidance Document Reactive Chemicals  

E-Print Network [OSTI]

showers and chillers. Health Hazards: The reactive chemicals are grouped primarily because of the physical

137

Chemical Management Contacts  

Broader source: Energy.gov [DOE]

Contacts for additional information on Chemical Management and brief description on Energy Facility Contractors Group

138

Log-domain circuit models of chemical reactions  

E-Print Network [OSTI]

We exploit the detailed similarities between electronics and chemistry to develop efficient, scalable bipolar or subthreshold log-domain circuits that are dynamically equivalent to networks of chemical reactions. Our ...

Mandal, Soumyajit

139

Chemical engineers design, control and optimize large-scale chemical,  

E-Print Network [OSTI]

, Biochemical, Environmental, Petroleum Engineering and Nantoechnology. CHEMICAL&MATERIALSSCIENCE CHE OVERVIEW of Science 131 units · Chemical Engineering (Petroleum) Bachelor of Science 136 units · Chemical Engineering38 Chemical engineers design, control and optimize large-scale chemical, physicochemical

Rohs, Remo

140

On line chemical composition of analyzer development  

SciTech Connect (OSTI)

This status report details progress made on the development of an on-line chemical analyzer. Dynamic studies of the distillation column, approval of testing plans, installation of a sample cell and raman analyzer, design of computerized control systems are described. Information on seminars and published papers is also included. (GHH)

Not Available

1992-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "disciplines chemical dynamics" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


141

International Journal of Chemical Reactor Engineering  

E-Print Network [OSTI]

International Journal of Chemical Reactor Engineering Volume 3 2005 Article A17 Optimal Operation, a single re- action takes place in the reactor and the operational objective is to compute the optimal feed is illustrated via simulation of two semi-batch reactor applications. KEYWORDS: Dynamic Optimization, Batch

Palanki, Srinivas

142

Technical Report TR-012 March 2001 Research Section, Vancouver Forest Region, BCMOF Research Disciplines: Ecology ~ Geology ~ Geomorphology ~ Hydrology ~ Pedology ~ Silviculture ~ Wildlife  

E-Print Network [OSTI]

Disciplines: Ecology ~ Geology ~ Geomorphology ~ Hydrology ~ Pedology ~ Silviculture ~ Wildlife TR-012: Ecology ~ Geology ~ Geomorphology ~ Hydrology ~ Pedology ~ Silviculture ~ Wildlife #12;Technical Report TR ~ Geology ~ Geomorphology ~ Hydrology ~ Pedology ~ Silviculture ~ Wildlife Page Summary 2 Keywords 2

143

From the portfolio to the diagram : architectural discourse and the transformation of the discipline of architecture in America, 1918-1943  

E-Print Network [OSTI]

This dissertation is an historical inquiry into the concomitant transformations of architectural discourse and the discipline of architecture in America. It proceeds on the theoretical assumption that the documents produced ...

Pae, Hy?ng-min.

1993-01-01T23:59:59.000Z

144

Temporal variability in chemical cycling of the subterranean estuary and associated chemical loading to the coastal ocean  

E-Print Network [OSTI]

At the land-ocean interface, terrestrial groundwater interacts with seawater to form a subterranean estuary, which can play host to dynamic biogeochemical cycling of nutrients, trace metals and radionuclides. This chemically ...

Gonneea, Meagan Joan Eagle

2014-01-01T23:59:59.000Z

145

PNNL Chemical Hydride Capabilities  

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

* Quantum chemistry, density functional theory, Car- Parinello, ab initio dynamics, variational transition state theory, molecular dynamics Strategy * Bring some of the...

146

A 10-year content analysis to assess research theme areas in agricultural education: gap analysis of future research priorities in the discipline.  

E-Print Network [OSTI]

A 10?YEAR CONTENT ANALYSIS TO ASSESS RESEARCH THEME AREAS IN AGRICULTURAL EDUCATION: GAP ANALYSIS OF FUTURE RESEARCH PRIORITIES IN THE DISCIPLINE A Dissertation by LESLIE DAWN JENKINS EDGAR Submitted to the Office of Graduate... IN AGRICULTURAL EDUCATION: GAP ANALYSIS OF FUTURE RESEARCH PRIORITIES IN THE DISCIPLINE A Dissertation by LESLIE DAWN JENKINS EDGAR Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements...

Edgar, Leslie Dawn

2009-05-15T23:59:59.000Z

147

School of Mechanical,Aerospace, Chemical and Materials Engineering  

E-Print Network [OSTI]

School of Mechanical,Aerospace, Chemical and Materials Engineering Kyle D. Squires School of Mechanical, Aerospace, Chemical and Materials Engineering Arizona State University Tempe, Arizona, USA 2010 Tutorial School on Fluid Dynamics: Topics in Turbulence Center for Scientific Computation and Mathematical

Gruner, Daniel S.

148

Ultrafast Core-Hole Induced Dynamics in Water  

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

Ultrafast Core-Hole Induced Dynamics in Water Print A thorough understanding of the chemical processes that are initiated when radiation interacts with aqueous systems is essential...

149

Chemistry 455 Chemical Nanotechnology  

E-Print Network [OSTI]

Chemistry 455 Chemical Nanotechnology 4 units Prof. Richard Brutchey, Fall 2014 (Lecture = 12:00­12:50 pm MWF) CHEM 455 is an upper-division undergraduate course in Chemical Nanotechnology. The intent

Rohs, Remo

150

Capacitive chemical sensor  

DOE Patents [OSTI]

A microfabricated capacitive chemical sensor can be used as an autonomous chemical sensor or as an analyte-sensitive chemical preconcentrator in a larger microanalytical system. The capacitive chemical sensor detects changes in sensing film dielectric properties, such as the dielectric constant, conductivity, or dimensionality. These changes result from the interaction of a target analyte with the sensing film. This capability provides a low-power, self-heating chemical sensor suitable for remote and unattended sensing applications. The capacitive chemical sensor also enables a smart, analyte-sensitive chemical preconcentrator. After sorption of the sample by the sensing film, the film can be rapidly heated to release the sample for further analysis. Therefore, the capacitive chemical sensor can optimize the sample collection time prior to release to enable the rapid and accurate analysis of analytes by a microanalytical system.

Manginell, Ronald P; Moorman, Matthew W; Wheeler, David R

2014-05-27T23:59:59.000Z

151

Institute of Chemical Engineering and High Temperature Chemical...  

Open Energy Info (EERE)

Chemical Processes ICEHT Jump to: navigation, search Name: Institute of Chemical Engineering and High Temperature Chemical Processes (ICEHT) Place: Hellas, Greece Zip:...

152

HARVARD UNIVERSITY CHEMICAL BIOLOGY  

E-Print Network [OSTI]

HARVARD UNIVERSITY CHEMICAL BIOLOGY PHD PROGRAM 2013-2014 Student Handbook #12;Program Contacts at the beginning of each semester. Laboratory Rotations Students in the Chemical Biology Program are expected an interest in having Chemical Biology Program Students in their labs. Students may rotate in the labs

Church, George M.

153

CHEMICAL SAFETY Emergency Numbers  

E-Print Network [OSTI]

- 1 - CHEMICAL SAFETY MANUAL 2010 #12;- 2 - Emergency Numbers UNBC Prince George Campus Security Prince George Campus Chemstores 6472 Chemical Safety 6472 Radiation Safety 5530 Biological Safety 5530 use, storage, handling, waste and emergency management of chemicals on the University of Northern

Bolch, Tobias

154

Department of Chemical Engineering  

E-Print Network [OSTI]

Developing Leaders of Innovation Department of Chemical Engineering #12;At the University of Virginia, we educate students in traditional and nontraditional areas of chemical engineering, giving them.Va. Department of Chemical Engineering benefit from a modern academic curriculum and state

Acton, Scott

155

Computational Chemical Materials Engineering  

E-Print Network [OSTI]

: Thermal barrier coatings, wear resistance coatings, radiation resistant materials · Materials for opticalHome Computational Chemical and Materials Engineering Tahir Cagin Chemical Engineering Department to understand behavior and properties of materials as a function of ­ Chemical constitution ­ Composition

156

Three-Dimensional Computational Fluid Dynamics  

SciTech Connect (OSTI)

Computational fluid dynamics (CFD) is one discipline falling under the broad heading of computer-aided engineering (CAE). CAE, together with computer-aided design (CAD) and computer-aided manufacturing (CAM), comprise a mathematical-based approach to engineering product and process design, analysis and fabrication. In this overview of CFD for the design engineer, our purposes are three-fold: (1) to define the scope of CFD and motivate its utility for engineering, (2) to provide a basic technical foundation for CFD, and (3) to convey how CFD is incorporated into engineering product and process design.

Haworth, D.C.; O'Rourke, P.J.; Ranganathan, R.

1998-09-01T23:59:59.000Z

157

Chemical Hygiene Plan i January 2013 Chemical Hygiene Plan  

E-Print Network [OSTI]

Chemical Hygiene Plan i January 2013 Chemical Hygiene Plan (CHP) (Appendix C in Lab Safety Manual........................................................................................................................1-1 Chapter 2: Chemical Hazard Communication....................................................................................2-1 Chapter 3: Classes of Hazardous Chemicals

Nizkorodov, Sergey

158

Chemical exchange program analysis.  

SciTech Connect (OSTI)

As part of its EMS, Sandia performs an annual environmental aspects/impacts analysis. The purpose of this analysis is to identify the environmental aspects associated with Sandia's activities, products, and services and the potential environmental impacts associated with those aspects. Division and environmental programs established objectives and targets based on the environmental aspects associated with their operations. In 2007 the most significant aspect identified was Hazardous Materials (Use and Storage). The objective for Hazardous Materials (Use and Storage) was to improve chemical handling, storage, and on-site movement of hazardous materials. One of the targets supporting this objective was to develop an effective chemical exchange program, making a business case for it in FY07, and fully implementing a comprehensive chemical exchange program in FY08. A Chemical Exchange Program (CEP) team was formed to implement this target. The team consists of representatives from the Chemical Information System (CIS), Pollution Prevention (P2), the HWMF, Procurement and the Environmental Management System (EMS). The CEP Team performed benchmarking and conducted a life-cycle analysis of the current management of chemicals at SNL/NM and compared it to Chemical Exchange alternatives. Those alternatives are as follows: (1) Revive the 'Virtual' Chemical Exchange Program; (2) Re-implement a 'Physical' Chemical Exchange Program using a Chemical Information System; and (3) Transition to a Chemical Management Services System. The analysis and benchmarking study shows that the present management of chemicals at SNL/NM is significantly disjointed and a life-cycle or 'Cradle-to-Grave' approach to chemical management is needed. This approach must consider the purchasing and maintenance costs as well as the cost of ultimate disposal of the chemicals and materials. A chemical exchange is needed as a mechanism to re-apply chemicals on site. This will not only reduce the quantity of unneeded chemicals and the amount spent on new purchases, but will also avoid disposal costs. If SNL/NM were to realize a 5 percent reduction in chemical inventory and a 10 percent reduction in disposal of unused chemicals the total savings would be $189, 200 per year.

Waffelaert, Pascale

2007-09-01T23:59:59.000Z

159

Chemical engineers design, control and optimize large-scale chemical,  

E-Print Network [OSTI]

Emphasis in Nanotechnology · ChemicalEngineering Emphasis in Petroleum Engineering · ChemicalEngineering38 Chemical engineers design, control and optimize large-scale chemical, physicochemical and electronics fields. Chemical Engineers are employed in areas as diverse as the chemical, materials, energy

Rohs, Remo

160

Chemical engineers design, control and optimize large-scale chemical,  

E-Print Network [OSTI]

· ChemicalEngineering (Nanotechnology) Bachelor of Science 131 units · ChemicalEngineering(Petroleum38 Chemical engineers design, control and optimize large-scale chemical, physicochemical and electronics fields. Chemical Engineers are employed in areas as diverse as the chemical, pharmaceutical

Rohs, Remo

Note: This page contains sample records for the topic "disciplines chemical dynamics" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


161

Chemical engineers design, control and optimize large-scale chemical,  

E-Print Network [OSTI]

in Nanotechnology · ChemicalEngineering Emphasis in Petroleum Engineering · ChemicalEngineering Emphasis in Polymers38 Chemical engineers design, control and optimize large-scale chemical, physicochemical and electronics fields. Chemical Engineers are employed in areas as diverse as the chemical, pharmaceutical

Rohs, Remo

162

Appendix G. Chemicals Appendix G. Chemicals G-3  

E-Print Network [OSTI]

of chemicals, we can increase food production, cure diseases, build more efficient houses, and send people with a chemical substance. Chemicals released to the air may remain suspended for long periods of timeAppendix G. Chemicals #12;#12;Appendix G. Chemicals G-3 Appendix G. Chemicals This appendix

Pennycook, Steve

163

Appendix G: Chemicals Appendix G: Chemicals G-3  

E-Print Network [OSTI]

of chemicals, we can increase food production, cure diseases, build more efficient houses, and send people with a chemical substance. Chemicals released to the air may remain suspended for long periods of timeAppendix G: Chemicals #12;#12;Appendix G: Chemicals G-3 Appendix G: Chemicals This appendix

Pennycook, Steve

164

Appendix H: Chemicals Appendix H: Chemicals H-3  

E-Print Network [OSTI]

of chemicals, we can increase food production, cure diseases, build more efficient houses, and send people with a chemical substance. Chemicals released to the air may remain suspended for long periods of timeAppendix H: Chemicals #12;#12;Appendix H: Chemicals H-3 Appendix H: Chemicals This appendix

Pennycook, Steve

165

Chemical evolution STRUCTURE OF GALAXIES  

E-Print Network [OSTI]

Outline Absorption Chemical evolution STRUCTURE OF GALAXIES 8. Absorption; chemical evolution Piet Piet van der Kruit, Kapteyn Astronomical Institute Absorption; chemical evolution #12;Outline Absorption Chemical evolution Outline Absorption Holmberg's analysis Analysis of Disney et al. Edge

Kruit, Piet van der

166

Chemometrics review for chemical sensor development, task 7 report  

SciTech Connect (OSTI)

This report, the seventh in a series on the evaluation of several chemical sensors for use in the U.S. Department of Energy`s (DOE`s) site characterization and monitoring programs, concentrates on the potential use of chemometrics techniques in analysis of sensor data. Chemometrics is the chemical discipline that uses mathematical, statistical, and other methods that employ formal logic to: design or select optimal measurement procedures and experiments and provide maximum relevant chemical information by analyzing chemical data. The report emphasizes the latter aspect. In a formal sense, two distinct phases are in chemometrics applications to analytical chemistry problems: (1) the exploratory data analysis phase and (2) the calibration and prediction phase. For use in real-world problems, it is wise to add a third aspect - the independent validation and verification phase. In practical applications, such as the ERWM work, and in order of decreasing difficulties, the most difficult tasks in chemometrics are: establishing the necessary infrastructure (to manage sampling records, data handling, and data storage and related aspects), exploring data analysis, and solving calibration problems, especially for nonlinear models. Chemometrics techniques are different for what are called zeroth-, first-, and second-order systems, and the details depend on the form of the assumed functional relationship between the measured response and the concentrations of components in mixtures. In general, linear relationships can be handled relatively easily, but nonlinear relationships can be difficult.

NONE

1994-05-01T23:59:59.000Z

167

45 2013-14 Suggested Course Plan CHEMICAL (POLYMERS/MATERIALS)  

E-Print Network [OSTI]

. to Separation Processes CHE 405: Probability and Statistics for CHE or iSE 460: Engineering Economy or bUAD 301: Chemical Process Dynamics CHE 472: Polymer Science & Engineering CHE 476: Chemical Engineering Materials GEN ED. iv GEN ED. v GEN ED. vi EnGInEERInG (60 unITS) CHE 120: Intro. to Chemical Engineering CHE 205

Zhou, Chongwu

168

49 2012-13SuggestedCoursePlan CHEMICAL (POLYMERS/MATERIALS)  

E-Print Network [OSTI]

. to Separation Processes CHE 405: Probability and Statistics for CHE or ISE 460: Engineering Economy or BUAD 301: Chemical Process Dynamics CHE 472: Polymer Science & Engineering CHE 476: Chemical Engineering Materials. II GEN ED. IV GEN ED. V GEN ED. VI ENGINEERING (60 UNITS) CHE 120: Intro. to Chemical Engineering CHE

Zhou, Chongwu

169

Biomass pyrolysis for chemicals.  

E-Print Network [OSTI]

??Biomass Pyrolysis for Chemicals The problems associated with the use of fossil fuels demand a transition to renewable sources (sun, wind, water, geothermal, biomass) forÖ (more)

Wild, Paul de

2011-01-01T23:59:59.000Z

170

Chemically Reactive Working Fluids  

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

commercial application. Goal: Demonstrate feasibility of employing chemically reacting fluids (CRFW) as heat transfer fluids (HTF) for CSP systems operating at 650C-1200C....

171

EMSL - chemical analysis  

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

chemical-analysis en Magnesium behavior and structural defects in Mg+ ion implanted silicon carbide. http:www.emsl.pnl.govemslwebpublicationsmagnesium-behavior-and-structural-...

172

Apparatus for chemical synthesis  

DOE Patents [OSTI]

A method and apparatus for forming a chemical hydride is described and which includes a pseudo-plasma-electrolysis reactor which is operable to receive a solution capable of forming a chemical hydride and which further includes a cathode and a movable anode, and wherein the anode is moved into and out of fluidic, ohmic electrical contact with the solution capable of forming a chemical hydride and which further, when energized produces an oxygen plasma which facilitates the formation of a chemical hydride in the solution.

Kong, Peter C. (Idaho Falls, ID); Herring, J. Stephen (Idaho Falls, ID); Grandy, Jon D. (Idaho Falls, ID)

2011-05-10T23:59:59.000Z

173

Chemical Accelerators The phrase "chemical accelerators"  

E-Print Network [OSTI]

bonds, 2 to 10 ev). The methods that have revealed this richness and order of medium- and high-energy, mass spectrometry. While hot-atom studies overcome the energy limitations of thermochemical methods energies of a few electron volts. Most studies of chemical kinetics made by traditional thermochemical

Zare, Richard N.

174

CHEMICAL ABBREVIATION KEY ABBREVIATION CHEMICAL NAME HAZARDS  

E-Print Network [OSTI]

Corrosive - base LiCl Lithium chloride Harmful MeOH Methanol Flammable #12;CHEMICAL ABBREVIATION KEY Irritant destain Methanol,acetic acid,H2O Flammable, Corrosive - acid DI H2O Deionized water DCM FeCl3 Iron(III) chloride Corrosive - acid FeSO4 Iron(II) sulfate Toxic H2O Water HCl Hydrochloric

Pawlowski, Wojtek

175

Chemical Engineering Andrew Zydney  

E-Print Network [OSTI]

;ChE Employment (2003 at PSU) Merck Dow ExxonMob Air Products Amgen PPG Sunoco Kraft Foods NRC Procter, microelectronics, consumer products, biotechnology, fuels / energy, environmental engineering, etc. ·Chemical Engineers focus on the processes involved in making new products, including chemical reactions

Maranas, Costas

176

Chemical and Biochemical  

E-Print Network [OSTI]

carrying out two experi- ments each semester. Graduates find careers at hospitals, nuclear plants, research how plastics, petrochemicals, or certain foods are made? Chemical engineers develop ways of converting to a variety of industries including the chemical and petrochemical fields and the pharmaceutical and biotech

Neimark, Alexander V.

177

Quantitative genetic activity graphical profiles for use in chemical evaluation  

SciTech Connect (OSTI)

A graphic approach, terms a Genetic Activity Profile (GAP), was developed to display a matrix of data on the genetic and related effects of selected chemical agents. The profiles provide a visual overview of the quantitative (doses) and qualitative (test results) data for each chemical. Either the lowest effective dose or highest ineffective dose is recorded for each agent and bioassay. Up to 200 different test systems are represented across the GAP. Bioassay systems are organized according to the phylogeny of the test organisms and the end points of genetic activity. The methodology for producing and evaluating genetic activity profile was developed in collaboration with the International Agency for Research on Cancer (IARC). Data on individual chemicals were compiles by IARC and by the US Environmental Protection Agency (EPA). Data are available on 343 compounds selected from volumes 1-53 of the IARC Monographs and on 115 compounds identified as Superfund Priority Substances. Software to display the GAPs on an IBM-compatible personal computer is available from the authors. Structurally similar compounds frequently display qualitatively and quantitatively similar profiles of genetic activity. Through examination of the patterns of GAPs of pairs and groups of chemicals, it is possible to make more informed decisions regarding the selection of test batteries to be used in evaluation of chemical analogs. GAPs provided useful data for development of weight-of-evidence hazard ranking schemes. Also, some knowledge of the potential genetic activity of complex environmental mixtures may be gained from an assessment of the genetic activity profiles of component chemicals. The fundamental techniques and computer programs devised for the GAP database may be used to develop similar databases in other disciplines. 36 refs., 2 figs.

Waters, M.D. [Environmental Protection Agency, Washington, DC (United States); Stack, H.F.; Garrett, N.E.; Jackson, M.A. [Environmental Health Research and Testing, Inc., Research Triangle Park, NC (United States)

1990-12-31T23:59:59.000Z

178

Tortuous path chemical preconcentrator  

DOE Patents [OSTI]

A non-planar, tortuous path chemical preconcentrator has a high internal surface area having a heatable sorptive coating that can be used to selectively collect and concentrate one or more chemical species of interest from a fluid stream that can be rapidly released as a concentrated plug into an analytical or microanalytical chain for separation and detection. The non-planar chemical preconcentrator comprises a sorptive support structure having a tortuous flow path. The tortuosity provides repeated twists, turns, and bends to the flow, thereby increasing the interfacial contact between sample fluid stream and the sorptive material. The tortuous path also provides more opportunities for desorption and readsorption of volatile species. Further, the thermal efficiency of the tortuous path chemical preconcentrator is comparable or superior to the prior non-planar chemical preconcentrator. Finally, the tortuosity can be varied in different directions to optimize flow rates during the adsorption and desorption phases of operation of the preconcentrator.

Manginell, Ronald P. (Albuquerque, NM); Lewis, Patrick R. (Albuquerque, NM); Adkins, Douglas R. (Albuquerque, NM); Wheeler, David R. (Albuquerque, NM); Simonson, Robert J. (Cedar Crest, NM)

2010-09-21T23:59:59.000Z

179

Appendix B: Chemicals Appendix B: Chemicals B-3  

E-Print Network [OSTI]

of chemicals, we can increase food production, cure diseases, build more efficient houses, and send people are exposed to chemicals by inhalation (breathing air), ingestion (eating exposed plants and animalsAppendix B: Chemicals #12;Appendix B: Chemicals B-3 Appendix B: Chemicals This appendix presents

Pennycook, Steve

180

Chemical process hazards analysis  

SciTech Connect (OSTI)

The Office of Worker Health and Safety (EH-5) under the Assistant Secretary for the Environment, Safety and Health of the US Department (DOE) has published two handbooks for use by DOE contractors managing facilities and processes covered by the Occupational Safety and Health Administration (OSHA) Rule for Process Safety Management of Highly Hazardous Chemicals (29 CFR 1910.119), herein referred to as the PSM Rule. The PSM Rule contains an integrated set of chemical process safety management elements designed to prevent chemical releases that can lead to catastrophic fires, explosions, or toxic exposures. The purpose of the two handbooks, ``Process Safety Management for Highly Hazardous Chemicals`` and ``Chemical Process Hazards Analysis,`` is to facilitate implementation of the provisions of the PSM Rule within the DOE. The purpose of this handbook ``Chemical Process Hazards Analysis,`` is to facilitate, within the DOE, the performance of chemical process hazards analyses (PrHAs) as required under the PSM Rule. It provides basic information for the performance of PrHAs, and should not be considered a complete resource on PrHA methods. Likewise, to determine if a facility is covered by the PSM rule, the reader should refer to the handbook, ``Process Safety Management for Highly Hazardous Chemicals`` (DOE- HDBK-1101-96). Promulgation of the PSM Rule has heightened the awareness of chemical safety management issues within the DOE. This handbook is intended for use by DOE facilities and processes covered by the PSM rule to facilitate contractor implementation of the PrHA element of the PSM Rule. However, contractors whose facilities and processes not covered by the PSM Rule may also use this handbook as a basis for conducting process hazards analyses as part of their good management practices. This handbook explains the minimum requirements for PrHAs outlined in the PSM Rule. Nowhere have requirements been added beyond what is specifically required by the rule.

NONE

1996-02-01T23:59:59.000Z

Note: This page contains sample records for the topic "disciplines chemical dynamics" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


181

or ChemiCal engineering?  

E-Print Network [OSTI]

Chemistry or ChemiCal engineering? Do both at Wits! www.wits.ac.za #12;Chemistry or ChemiCal by a BScEng (Chem Eng)! Which should I choose: Chemistry or Chemical Engineering? Because the chemist and the chemical engineer work so closely in industry, there is little doubt that the chemical engineer who has

Wagner, Stephan

182

Specimen Curriculum for Chemical Engineering Focus Area: Chemical Engineering  

E-Print Network [OSTI]

Chemistry Chem 220B 3 hours Physical Chemistry Chem 230 3 hours Chemical Reactor Engineering ChBE 225 3Specimen Curriculum for Chemical Engineering Focus Area: Chemical Engineering Semester hours SOPHOMORE YEAR FALL SPRING Chem 219A

Bordenstein, Seth

183

Chemical Sciences Project Description  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation Proposed New Substation SitesStandingtheirCheck In &Chemical LabelChemicalChemicalModeling

184

ITP Chemicals: Chemical Bandwidth Study - Energy Analysis: A...  

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

Chemical Bandwidth Study - Energy Analysis: A Powerful Tool for Identifying Process Inefficiencies in the U.S. Chemical Industry, Industrial Technologies Program, DRAFT Summary...

185

Two-Color QCD with Chiral Chemical Potential  

E-Print Network [OSTI]

The phase diagram of two-color QCD with a chiral chemical potential is studied on the lattice. The focus is on the confinement/deconfinement phase transition and the breaking/restoration of chiral symmetry. The simulations are carried out with dynamical staggered fermions without rooting. The dependence of the Polyakov loop, the chiral condensate and the corresponding susceptibilities on the chiral chemical potential and the temperature are presented.

V. V. Braguta; V. A. Goy; E. -M. Ilgenfritz; A. Yu. Kotov; A. V. Molochkov; M. Muller-Preussker; B. Petersson; A. Schreiber

2014-11-19T23:59:59.000Z

186

CHEMICAL ENGINEERING Program of Study  

E-Print Network [OSTI]

CHEMICAL ENGINEERING Program of Study Research Facilities Financial Aid Applying Correspondence The Department of Chemical Engineering and Biological Engineering has well-established programs at both area of chemical engineering and include both fundamental and applied topics. The Department has

Thomas, Andrew

187

The IceCube Data Acquisition Software: Lessons Learned during Distributed, Collaborative, Multi-Disciplined Software Development.  

SciTech Connect (OSTI)

In this experiential paper we report on lessons learned during the development ofthe data acquisition software for the IceCube project - specifically, how to effectively address the unique challenges presented by a distributed, collaborative, multi-institutional, multi-disciplined project such as this. While development progress in software projects is often described solely in terms of technical issues, our experience indicates that non- and quasi-technical interactions play a substantial role in the effectiveness of large software development efforts. These include: selection and management of multiple software development methodologies, the effective useof various collaborative communication tools, project management structure and roles, and the impact and apparent importance of these elements when viewed through the differing perspectives of hardware, software, scientific and project office roles. Even in areas clearly technical in nature, success is still influenced by non-technical issues that can escape close attention. In particular we describe our experiences on software requirements specification, development methodologies and communication tools. We make observations on what tools and techniques have and have not been effective in this geographically disperse (including the South Pole) collaboration and offer suggestions on how similarly structured future projects may build upon our experiences.

Beattie, Keith S; Beattie, Keith; Day Ph.D., Christopher; Glowacki, Dave; Hanson Ph.D., Kael; Jacobsen Ph.D., John; McParland, Charles; Patton Ph.D., Simon

2007-09-21T23:59:59.000Z

188

Texas AgriLife Extension Service Procedure 32.02.02.X1.01 Discipline and Dismissal Page 1 of 2 Texas AgriLife Extension Service Procedures  

E-Print Network [OSTI]

Texas AgriLife Extension Service Procedure 32.02.02.X1.01 Discipline and Dismissal Page 1 of 2 Texas AgriLife Extension Service Procedures 32.02.02.X1.01 DISCIPLINE AND DISMISSAL Approved: March 27 PROCEDURE STATEMENT This procedure delineates the delegation of authority to approve dismissals

189

Nonequilibrium molecular dynamics simulations of confined fluids in contact with the bulk  

E-Print Network [OSTI]

Nonequilibrium molecular dynamics simulations of confined fluids in contact with the bulk Luzheng Zhang, Ramkumar Balasundaram,a) and Stevin H. Gehrke Department of Chemical Engineering, Kansas State University, Manhattan, Kansas 66506 Shaoyi Jiangb) Department of Chemical Engineering, University

Zhang, Luzheng

190

Chemical Engineering Is Chemical Engineering right for me?  

E-Print Network [OSTI]

Chemical Engineering Is Chemical Engineering right for me? If you are interested in the uses and processes surrounding the engineering of new and raw materials, a degree in Chemical Engineering may be well suited to you. The Chemical Engineering degree programme will focus on the development of products

Harman, Neal.A.

191

Chemical Organization Theory as a Theoretical Base for Chemical Computing  

E-Print Network [OSTI]

Chemical Organization Theory as a Theoretical Base for Chemical Computing NAOKI MATSUMARU, FLORIAN-07743 Jena, Germany http://www.minet.uni-jena.de/csb/ Submitted 14 November 2005 In chemical computing- gramming chemical systems a theoretical method to cope with that emergent behavior is desired

Dittrich, Peter

192

Appendix G. Chemicals Appendix G. Chemicals G-3  

E-Print Network [OSTI]

. Through the use of chemicals, we can increase food production, cure diseases, build more efficient houses or way in which a person can come in contact with a chemical substance. Chemicals released to the air may are exposed to chemicals by inhalation (breathing air), ingestion (eating exposed plants and animals

Pennycook, Steve

193

Appendix H. Chemicals Appendix H. Chemicals H-3  

E-Print Network [OSTI]

. Through the use of chemicals, we can increase food production, cure diseases, build more efficient houses or way in which a person can come in contact with a chemical substance. Chemicals released to the air may are exposed to chemicals by inhalation (breathing air), ingestion (eating exposed plants and animals

Pennycook, Steve

194

Appendix G. Chemicals Appendix G. Chemicals G-3  

E-Print Network [OSTI]

of chemicals, we can increase food production, cure diseases, build more efficient houses, and send people with a chemical substance. Chemicals released to the air may remain suspended for long periods, or they may effluents, which can enter streams and rivers. People are exposed to chemicals by inhalation (breathing air

Pennycook, Steve

195

Micromachined chemical jet dispenser  

DOE Patents [OSTI]

A dispenser is disclosed for chemical fluid samples that need to be precisely ejected in size, location, and time. The dispenser is a micro-electro-mechanical systems (MEMS) device fabricated in a bonded silicon wafer and a substrate, such as glass or silicon, using integrated circuit-like fabrication technology which is amenable to mass production. The dispensing is actuated by ultrasonic transducers that efficiently produce a pressure wave in capillaries that contain the chemicals. The 10-200 {micro}m diameter capillaries can be arranged to focus in one spot or may be arranged in a larger dense linear array (ca. 200 capillaries). The dispenser is analogous to some ink jet print heads for computer printers but the fluid is not heated, thus not damaging certain samples. Major applications are in biological sample handling and in analytical chemical procedures such as environmental sample analysis, medical lab analysis, or molecular biology chemistry experiments. 4 figs.

Swierkowski, S.P.

1999-03-02T23:59:59.000Z

196

Micromachined chemical jet dispenser  

DOE Patents [OSTI]

A dispenser for chemical fluid samples that need to be precisely ejected in size, location, and time. The dispenser is a micro-electro-mechanical systems (MEMS) device fabricated in a bonded silicon wafer and a substrate, such as glass or silicon, using integrated circuit-like fabrication technology which is amenable to mass production. The dispensing is actuated by ultrasonic transducers that efficiently produce a pressure wave in capillaries that contain the chemicals. The 10-200 .mu.m diameter capillaries can be arranged to focus in one spot or may be arranged in a larger dense linear array (.about.200 capillaries). The dispenser is analogous to some ink jet print heads for computer printers but the fluid is not heated, thus not damaging certain samples. Major applications are in biological sample handling and in analytical chemical procedures such as environmental sample analysis, medical lab analysis, or molecular biology chemistry experiments.

Swierkowski, Steve P. (Livermore, CA)

1999-03-02T23:59:59.000Z

197

November 2006 CHEMICAL HYGIENE PLAN  

E-Print Network [OSTI]

.0 DEPARTMENTAL SAFETY MANAGEMENT 4.1 CHEMISTRY SAFETY COMMITTEE 4.2 TRAINING 4.3 CHEMICAL SAFETY PROTOCOLS 4.2 CHEMICAL HAZARD INFORMATION 6.3 CHEMICAL STORAGE IN LABORATORIES 6.4 WORKING WITH PARTICULARLY HAZARDOUS PROCEDURES 6.8 CHEMICAL WASTE DISPOSAL 6.9 COMPRESSED GASES 6.10 CRYOGENIC LIQUIDS #12;November 2006 3 6

Bordenstein, Seth

198

New Science for Chemicals Policy  

E-Print Network [OSTI]

Disease Control and Prevention, Third National Report on Human Exposure to Environmental Chemicals (

2009-01-01T23:59:59.000Z

199

Process Intensification - Chemical Sector Focus  

Office of Environmental Management (EM)

Process Intensification - Chemical Sector Focus 1 Technology Assessment 2 Contents 3 1. Introduction ......

200

Chemical Hygiene and Safety Plan  

E-Print Network [OSTI]

G-31 Fluorocarbonhydrocarbons, and (3) fluorocarbon solvents. However, aHigh Hazard Chemicals Fluorocarbon Solvents Fluorocarbon

Ricks Editor, R.

2009-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "disciplines chemical dynamics" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


201

Electronic Spectroscopy & Dynamics  

SciTech Connect (OSTI)

The Gordon Research Conference (GRC) on Electronic Spectroscopy and Dynamics was held at Colby College, Waterville, NH from 07/19/2009 thru 07/24/2009. The Conference was well-attended with participants (attendees list attached). The attendees represented the spectrum of endeavor in this field coming from academia, industry, and government laboratories, both U.S. and foreign scientists, senior researchers, young investigators, and students. The GRC on Electronic Spectroscopy & Dynamics showcases some of the most recent experimental and theoretical developments in electronic spectroscopy that probes the structure and dynamics of isolated molecules, molecules embedded in clusters and condensed phases, and bulk materials. Electronic spectroscopy is an important tool in many fields of research, and this GRC brings together experts having diverse backgrounds in physics, chemistry, biophysics, and materials science, making the meeting an excellent opportunity for the interdisciplinary exchange of ideas and techniques. Topics covered in this GRC include high-resolution spectroscopy, biological molecules in the gas phase, electronic structure theory for excited states, multi-chromophore and single-molecule spectroscopies, and excited state dynamics in chemical and biological systems.

Mark Maroncelli, Nancy Ryan Gray

2010-06-08T23:59:59.000Z

202

Chemical Label Information  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation Proposed New Substation SitesStandingtheirCheck In &Chemical Label Information Chemical

203

Complex Dynamics  

E-Print Network [OSTI]

Complex Dynamics Bernardo Da Costa, Koushik Ramachandran, Jingjing Qu, and I had a two semester learning seminar in complex analysis and potential†...

204

Simple Dynamic Gasifier Model That Runs in Aspen Dynamics  

SciTech Connect (OSTI)

Gasification (or partial oxidation) is a vital component of 'clean coal' technology. Sulfur and nitrogen emissions can be reduced, overall energy efficiency is increased, and carbon dioxide recovery and sequestration are facilitated. Gasification units in an electric power generation plant produce a fuel for driving combustion turbines. Gasification units in a chemical plant generate gas, which can be used to produce a wide spectrum of chemical products. Future plants are predicted to be hybrid power/chemical plants with gasification as the key unit operation. The widely used process simulator Aspen Plus provides a library of models that can be used to develop an overall gasifier model that handles solids. So steady-state design and optimization studies of processes with gasifiers can be undertaken. This paper presents a simple approximate method for achieving the objective of having a gasifier model that can be exported into Aspen Dynamics. The basic idea is to use a high molecular weight hydrocarbon that is present in the Aspen library as a pseudofuel. This component should have the same 1:1 hydrogen-to-carbon ratio that is found in coal and biomass. For many plantwide dynamic studies, a rigorous high-fidelity dynamic model of the gasifier is not needed because its dynamics are very fast and the gasifier gas volume is a relatively small fraction of the total volume of the entire plant. The proposed approximate model captures the essential macroscale thermal, flow, composition, and pressure dynamics. This paper does not attempt to optimize the design or control of gasifiers but merely presents an idea of how to dynamically simulate coal gasification in an approximate way.

Robinson, P.J.; Luyben, W.L. [Lehigh University, Bethlehem, PA (United States). Dept. of Chemical Engineering

2008-10-15T23:59:59.000Z

205

NETL - Chemical Looping Reactor  

ScienceCinema (OSTI)

NETL's Chemical Looping Reactor unit is a high-temperature integrated CLC process with extensive instrumentation to improve computational simulations. A non-reacting test unit is also used to study solids flow at ambient temperature. The CLR unit circulates approximately 1,000 pounds per hour at temperatures around 1,800 degrees Fahrenheit.

None

2014-06-26T23:59:59.000Z

206

Spectroscopic probes of vibrationally excited molecules at chemically significant energies  

SciTech Connect (OSTI)

This project involves the application of multiple-resonance spectroscopic techniques for investigating energy transfer and dissociation dynamics of highly vibrationally excited molecules. Two major goals of this work are: (1) to provide information on potential energy surfaces of combustion related molecules at chemically significant energies, and (2) to test theoretical modes of unimolecular dissociation rates critically via quantum-state resolved measurements.

Rizzo, T.R. [Univ. of Rochester, NY (United States)

1993-12-01T23:59:59.000Z

207

19 September 1997 Z .Chemical Physics Letters 276 1997 269273  

E-Print Network [OSTI]

19 September 1997 Z .Chemical Physics Letters 276 1997 269­273 On the threshold behavior in laser 8 April 1997; in final form 17 June 1997 Abstract The microscopic mechanisms of the fluence that determine the dynamics of laser ablation. q 1997 Elsevier Science B.V. The interaction of laser pulses

Zhigilei, Leonid V.

208

* Corresponding author. Chemical Engineering Science 56 (2001) 1035}1039  

E-Print Network [OSTI]

. A simpli"ed model of the corona reactor is utilized in conjunction with dynamic optimization. Scaling of this optimization strategy. 2001 Published by Elsevier Science Ltd. Keywords: Pulsed corona reactor; Advanced* Corresponding author. Chemical Engineering Science 56 (2001) 1035}1039 Optimization

Palanki, Srinivas

209

Biosystem Dynamics & Design | EMSL  

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

Biosystem Dynamics & Design Overview Atmospheric Aerosol Systems Biosystem Dynamics & Design Energy Materials & Processes Terrestrial & Subsurface Ecosystems Biosystem Dynamics &...

210

Dynamic imaging with electron microscopy  

SciTech Connect (OSTI)

Livermore researchers have perfected an electron microscope to study fast-evolving material processes and chemical reactions. By applying engineering, microscopy, and laser expertise to the decades-old technology of electron microscopy, the dynamic transmission electron microscope (DTEM) team has developed a technique that can capture images of phenomena that are both very small and very fast. DTEM uses a precisely timed laser pulse to achieve a short but intense electron beam for imaging. When synchronized with a dynamic event in the microscope's field of view, DTEM allows scientists to record and measure material changes in action. A new movie-mode capability, which earned a 2013 R&D 100 Award from R&D Magazine, uses up to nine laser pulses to sequentially capture fast, irreversible, even one-of-a-kind material changes at the nanometer scale. DTEM projects are advancing basic and applied materials research, including such areas as nanostructure growth, phase transformations, and chemical reactions.

Campbell, Geoffrey; McKeown, Joe; Santala, Melissa

2014-02-20T23:59:59.000Z

211

Dynamic imaging with electron microscopy  

ScienceCinema (OSTI)

Livermore researchers have perfected an electron microscope to study fast-evolving material processes and chemical reactions. By applying engineering, microscopy, and laser expertise to the decades-old technology of electron microscopy, the dynamic transmission electron microscope (DTEM) team has developed a technique that can capture images of phenomena that are both very small and very fast. DTEM uses a precisely timed laser pulse to achieve a short but intense electron beam for imaging. When synchronized with a dynamic event in the microscope's field of view, DTEM allows scientists to record and measure material changes in action. A new movie-mode capability, which earned a 2013 R&D 100 Award from R&D Magazine, uses up to nine laser pulses to sequentially capture fast, irreversible, even one-of-a-kind material changes at the nanometer scale. DTEM projects are advancing basic and applied materials research, including such areas as nanostructure growth, phase transformations, and chemical reactions.

Campbell, Geoffrey; McKeown, Joe; Santala, Melissa

2014-05-30T23:59:59.000Z

212

Spectroscopic investigations of hydrogen bond dynamics in liquid water  

E-Print Network [OSTI]

Many of the remarkable physical and chemical properties of liquid water are due to the strong influence hydrogen bonds have on its microscopic dynamics. However, because of the fast timescales involved, there are relatively ...

Fecko, Christopher J., 1975-

2004-01-01T23:59:59.000Z

213

PARALLEL DYNAMICMESH LAGRANGIAN METHOD FOR SIMULATION FLOWS WITH DYNAMIC INTERFACES  

E-Print Network [OSTI]

the aerospace, automotive, biomedical, chemical, marine, materials, wind engineering sciences. These include, material description motion results in dynamic meshes, become hopelessly distorted unless regularly large≠amplitude vibrations such flexible aerodynamic components high aspect wings blades; mixtures

Antaki, James F.

214

Earth materials and earth dynamics  

SciTech Connect (OSTI)

In the project ''Earth Materials and Earth Dynamics'' we linked fundamental and exploratory, experimental, theoretical, and computational research programs to shed light on the current and past states of the dynamic Earth. Our objective was to combine different geological, geochemical, geophysical, and materials science analyses with numerical techniques to illuminate active processes in the Earth. These processes include fluid-rock interactions that form and modify the lithosphere, non-linear wave attenuations in rocks that drive plate tectonics and perturb the earth's surface, dynamic recrystallization of olivine that deforms the upper mantle, development of texture in high-pressure olivine polymorphs that create anisotropic velocity regions in the convecting upper mantle and transition zone, and the intense chemical reactions between the mantle and core. We measured physical properties such as texture and nonlinear elasticity, equation of states at simultaneous pressures and temperatures, magnetic spins and bonding, chemical permeability, and thermal-chemical feedback to better characterize earth materials. We artificially generated seismic waves, numerically modeled fluid flow and transport in rock systems and modified polycrystal plasticity theory to interpret measured physical properties and integrate them into our understanding of the Earth. This is the final report of a three-year, Laboratory-Directed Research and Development (LDRD) project at the Los Alamos National Laboratory (LANL).

Bennett, K; Shankland, T. [and others

2000-11-01T23:59:59.000Z

215

Devices for collecting chemical compounds  

DOE Patents [OSTI]

A device for sampling chemical compounds from fixed surfaces and related methods are disclosed. The device may include a vacuum source, a chamber and a sorbent material. The device may utilize vacuum extraction to volatilize the chemical compounds from a fixed surface so that they may be sorbed by the sorbent material. The sorbent material may then be analyzed using conventional thermal desorption/gas chromatography/mass spectrometry (TD/GC/MS) instrumentation to determine presence of the chemical compounds. The methods may include detecting release and presence of one or more chemical compounds and determining the efficacy of decontamination. The device may be useful in collection and analysis of a variety of chemical compounds, such as residual chemical warfare agents, chemical attribution signatures and toxic industrial chemicals.

Scott, Jill R; Groenewold, Gary S

2013-12-24T23:59:59.000Z

216

Cotton Harvest-Aid Chemicals.  

E-Print Network [OSTI]

of Application Managing Harvest-Aid Program Secondary Growth Insect Control Care of Equipment Safety with Chemicals Guide for Using Cotton Harvest Aids Defoliants Desiccants Mixtures Plant Regulators-Conditioners 3 3 4 4 4 4 5 5 6 7 7 COTTON... HARVEST-AID CHEMICALS Robert B. Metzer and James Supak* As the name implies, harvest-aid chemicals pre pare the cotton crop for harvest by reducing foliage and plant moisture that interfere with harvesting operations. Harvest-aid chemicals...

Metzer, Robert B.; Supak, James

1987-01-01T23:59:59.000Z

217

LLNL Chemical Kinetics Modeling Group  

SciTech Connect (OSTI)

The LLNL chemical kinetics modeling group has been responsible for much progress in the development of chemical kinetic models for practical fuels. The group began its work in the early 1970s, developing chemical kinetic models for methane, ethane, ethanol and halogenated inhibitors. Most recently, it has been developing chemical kinetic models for large n-alkanes, cycloalkanes, hexenes, and large methyl esters. These component models are needed to represent gasoline, diesel, jet, and oil-sand-derived fuels.

Pitz, W J; Westbrook, C K; Mehl, M; Herbinet, O; Curran, H J; Silke, E J

2008-09-24T23:59:59.000Z

218

CHEMICAL LABORATORY SAFETY AND METHODOLOGY  

E-Print Network [OSTI]

CHEMICAL LABORATORY SAFETY AND METHODOLOGY MANUAL August 2013 #12;ii Emergency Numbers UNBC Prince-Emergency Numbers UNBC Prince George Campus Chemstores 6472 Chemical Safety 6472 Radiation Safety 6472 Biological the safe use, storage, handling, waste and emergency management of chemicals on the University of Northern

Northern British Columbia, University of

219

ANALYTICAL METHODS in CHEMICAL ECOLOGY  

E-Print Network [OSTI]

ANALYTICAL METHODS in CHEMICAL ECOLOGY a post graduate course (doktorandkurs) when: February 10 ­ 28, 2014 where: Chemical Ecology, Plant Protection Biology, Swedish University of Agriculture (SLU to modern analytical methods used in Chemical Ecological and Ecotoxicological research, such as: methods

220

Theoretical studies of the dynamics of chemical reactions  

SciTech Connect (OSTI)

Recent research effort has focussed on several reactions pertinent to combustion. The formation of the formyl radical from atomic hydrogen and carbon monoxide, recombination of alkyl radicals and halo-alkyl radicals with halogen atoms, and the thermal dissociation of hydrogen cyanide and acetylene have been studied by modeling. In addition, the inelastic collisions of NCO with helium have been investigated.

Wagner, A.F. [Argonne National Laboratory, IL (United States)

1993-12-01T23:59:59.000Z

Note: This page contains sample records for the topic "disciplines chemical dynamics" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


221

Chemical and Dynamical Characteristics of Stratosphere-Troposphere Exchange  

E-Print Network [OSTI]

An illustration of the identi cation process for wavebreaking events described in Chapter IIIB2. : : : : : : : : : : : : : : : : : : : : : : : 89 7 Evolution of the tropospheric intrusion event sampled during re- search ight 1 (RF01). The red colors represent... ight 1 (RF01) with (a) analysis PV eld for 18 April 2008 at 1800 UTC and (b) 5 day reverse domain PV from the analysis time in Figure 8a. The red colors represent jPVj < 4 pvu from high-resolution GFS analyses. The black portions of the ight track...

Homeyer, Cameron Ross

2012-10-19T23:59:59.000Z

222

Chemical Dynamics, Molecular Energetics, and Kinetics at the Synchrotron  

E-Print Network [OSTI]

to bio-fuels. 51 The flame machine, shown in Figure 8,advanced engine designs 50 and novel bio-derived fuels andto predict how novel bio-derived fuel stocks might impact

Leone, Stephen R.

2010-01-01T23:59:59.000Z

223

THE DYNAMICS OF CHEMICAL REACTORS WITH HEAT INTEGRATION  

E-Print Network [OSTI]

1958 analyzed the stability of the steady states of autothermal reactors. Author to whom correspondence behavior in autothermal reactors was pre- sented by Reilly an Schmitz 1966,1967 and Pareja and Reilly 1969

Skogestad, Sigurd

224

THE DYNAMICS OF CHEMICAL REACTORS WITH HEAT INTEGRATION  

E-Print Network [OSTI]

) and Aris and Amundson (1958) analyzed the stability of the steady states of autothermal reactors. \\Lambda: 47≠7359≠4080. Limit cycle behavior in autothermal reactors was pre≠ sented by Reilly an Schmitz (1966

Skogestad, Sigurd

225

ITP Chemicals: Technology Roadmap for Computational Fluid Dynamics, January  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-UpHeatMulti-Dimensionalthe U.S. Department ofIOWA1999) | Department2009 | Department

226

Microsoft Word - Dynamic Chemical Imaging at Nanoscale bh  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLas Conchas recovery challenge fundProject8 - Outline andPROPOSAL68R18Requiringof4 2.1Draft)

227

Site-Specific Raman Spectroscopy and Chemical Dynamics of Nanoscale  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administrationcontroller systemsBi (2)SharingTiO2(110). | EMSL Imaging of Elemental

228

Chemical kinetics modeling  

SciTech Connect (OSTI)

This project emphasizes numerical modeling of chemical kinetics of combustion, including applications in both practical combustion systems and in controlled laboratory experiments. Elementary reaction rate parameters are combined into mechanisms which then describe the overall reaction of the fuels being studied. Detailed sensitivity analyses are used to identify those reaction rates and product species distributions to which the results are most sensitive and therefore warrant the greatest attention from other experimental and theoretical research programs. Experimental data from a variety of environments are combined together to validate the reaction mechanisms, including results from laminar flames, shock tubes, flow systems, detonations, and even internal combustion engines.

Westbrook, C.K.; Pitz, W.J. [Lawrence Livermore National Laboratory, CA (United States)

1993-12-01T23:59:59.000Z

229

Chemical sensing flow probe  

SciTech Connect (OSTI)

A new chemical probe determines the properties of an analyte using the light absorption of the products of a reagent/analyte reaction. The probe places a small reaction volume in contact with a large analyte volume. Analyte diffuses into the reaction volume. Reagent is selectively supplied to the reaction volume. The light absorption of the reaction in the reaction volume indicates properties of the original analyte. The probe is suitable for repeated use in remote or hostile environments. It does not require physical sampling of the analyte or result in significant regent contamination of the analyte reservoir. 7 figs.

Laguna, G.R.; Peter, F.J.; Butler, M.A.

1999-02-16T23:59:59.000Z

230

Chemical Sciences Division - CSD  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc DocumentationP-Series to User Group and Userof a blast-resistant navalChemCam laser ChemicalCSD

231

Chemical Processing Qualification Standard  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-Up fromDepartmentTieCelebrate Earth DayFuels Chemical Kinetic Modeling of16-2010 February

232

CAMD Cleanroom Chemical List  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation Proposed New Substation Sites Proposed Route Segments (notCAMD Cleanroom Chemical List

233

Chemical sensing flow probe  

DOE Patents [OSTI]

A new chemical probe determines the properties of an analyte using the light absorption of the products of a reagent/analyte reaction. The probe places a small reaction volume in contact with a large analyte volume. Analyte diffuses into the reaction volume. Reagent is selectively supplied to the reaction volume. The light absorption of the reaction in the reaction volume indicates properties of the original analyte. The probe is suitable for repeated use in remote or hostile environments. It does not require physical sampling of the analyte or result in significant regent contamination of the analyte reservoir.

Laguna, George R. (Albuquerque, NM); Peter, Frank J. (Albuquerque, NM); Butler, Michael A. (Albuquerque, NM)

1999-01-01T23:59:59.000Z

234

Chemical & Engineering Materials | More Science | ORNL  

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

Chemical & Engineering Materials SHARE Chemical and Engineering Materials Neutron-based research at SNS and HFIR in Chemical and Engineering Materials strives to understand the...

235

Introduction to the application of the dynamical systems theory in the study of the dynamics of cosmological models of dark energy  

E-Print Network [OSTI]

The theory of the dynamical systems is a very complex subject which has brought several surprises in the recent past in connection with the theory of chaos and fractals. The application of the tools of the dynamical systems in cosmological settings is less known in spite of the amount of published scientific papers on this subject. In this paper a -- mostly pedagogical -- introduction to the application in cosmology of the basic tools of the dynamical systems theory is presented. It is shown that, in spite of their amazing simplicity, these allow to extract essential information on the asymptotic dynamics of a wide variety of cosmological models. The power of these tools is illustrated within the context of the so called $\\Lambda$CDM and scalar field models of dark energy. This paper is suitable for teachers, undergraduate and postgraduate students from physics and mathematics disciplines.

GarcŪa-Salcedo, Ricardo; Horta-Rangel, Francisco A; Quiros, Israel; Sanchez-GuzmŠn, Daniel

2015-01-01T23:59:59.000Z

236

Chemical Reactions in DSMC  

SciTech Connect (OSTI)

DSMC simulations of chemically reacting gas flows have generally employed procedures that convert the macroscopic chemical rate equations to reaction cross-sections at the microscopic level. They therefore depend on the availability of experimental data that has been fitted to equations of the Arrhenius form. This paper presents a physical model for dissociation and recombination reactions and a phenomenological model for exchange and chain reactions. These are based on the vibrational states of the colliding molecules and do not require any experimentally-based data. The simplicity of the models allows the corresponding rate equations to be written down and, while these are not required for the implementation of the models, they facilitate their validation. The model is applied to a typical hypersonic atmospheric entry problem and the results are compared with the corresponding results from the traditional method. It is also used to investigate both spontaneous and forced ignition as well as the structure of a deflagration wave in an oxygen-hydrogen mixture.

Bird, G. A. [GAB Consulting Pty Ltd, 144/110 Sussex Street, Sydney NSW 2000 (Australia)

2011-05-20T23:59:59.000Z

237

Chemical Looping Combustion Kinetics  

SciTech Connect (OSTI)

One of the most promising methods of capturing CO{sub 2} emitted by coal-fired power plants for subsequent sequestration is chemical looping combustion (CLC). A powdered metal oxide such as NiO transfers oxygen directly to a fuel in a fuel reactor at high temperatures with no air present. Heat, water, and CO{sub 2} are released, and after H{sub 2}O condensation the CO{sub 2} (undiluted by N{sub 2}) is ready for sequestration, whereas the nickel metal is ready for reoxidation in the air reactor. In principle, these processes can be repeated endlessly with the original nickel metal/nickel oxide participating in a loop that admits fuel and rejects ash, heat, and water. Our project accumulated kinetic rate data at high temperatures and elevated pressures for the metal oxide reduction step and for the metal reoxidation step. These data will be used in computational modeling of CLC on the laboratory scale and presumably later on the plant scale. The oxygen carrier on which the research at Utah is focused is CuO/Cu{sub 2}O rather than nickel oxide because the copper system lends itself to use with solid fuels in an alternative to CLC called 'chemical looping with oxygen uncoupling' (CLOU).

Edward Eyring; Gabor Konya

2009-03-31T23:59:59.000Z

238

Chemical heat pump  

DOE Patents [OSTI]

A chemical heat pump system is disclosed for use in heating and cooling structures such as residences or commercial buildings. The system is particularly adapted to utilizing solar energy, but also increases the efficiency of other forms of thermal energy when solar energy is not available. When solar energy is not available for relatively short periods of time, the heat storage capacity of the chemical heat pump is utilized to heat the structure, as during nighttime hours. The design also permits home heating from solar energy when the sun is shining. The entire system may be conveniently rooftop located. In order to facilitate installation on existing structures, the absorber and vaporizer portions of the system may each be designed as flat, thin wall, thin pan vessels which materially increase the surface area available for heat transfer. In addition, this thin, flat configuration of the absorber and its thin walled (and therefore relatively flexible) construction permits substantial expansion and contraction of the absorber material during vaporization and absorption without generating voids which would interfere with heat transfer.

Greiner, Leonard (2853-A Hickory Pl., Costa Mesa, CA 92626)

1981-01-01T23:59:59.000Z

239

Chemical heat pump  

DOE Patents [OSTI]

A chemical heat pump system is disclosed for use in heating and cooling structures such as residences or commercial buildings. The system is particularly adapted to utilizing solar energy, but also increases the efficiency of other forms of thermal energy when solar energy is not available. When solar energy is not available for relatively short periods of time, the heat storage capacity of the chemical heat pump is utilized to heat the structure, as during nighttime hours. The design also permits home heating from solar energy when the sun is shining. The entire system may be conveniently rooftop located. In order to facilitate intallation on existing structures, the absorber and vaporizer portions of the system may each be designed as flat, thin wall, thin pan vessels which materially increase the surface area available for heat transfer. In addition, this thin, flat configuration of the absorber and its thin walled (and therefore relatively flexible) construction permits substantial expansion and contraction of the absorber material during vaporization and absorption without generating voids which would interfere with heat transfer.

Greiner, Leonard (2853-A Hickory Pl., Costa Mesa, CA 92626)

1984-01-01T23:59:59.000Z

240

Chemical heat pump  

DOE Patents [OSTI]

A chemical heat pump system is disclosed for use in heating and cooling structures such as residences or commercial buildings. The system is particularly adapted to utilizing solar energy, but also increases the efficiency of other forms of thermal energy when solar energy is not available. When solar energy is not available for relatively short periods of time, the heat storage capacity of the chemical heat pump is utilized to heat the structure, as during nighttime hours. The design also permits home heating from solar energy when the sun is shining. The entire system may be conveniently rooftop located. In order to facilitate installation on existing structures, the absorber and vaporizer portions of the system may each be designed as flat, thin wall, thin pan vessels which materially increase the surface area available for heat transfer. In addition, this thin, flat configuration of the absorber and its thin walled (and therefore relatively flexible) construction permits substantial expansion and contraction of the absorber material during vaporization and absorption without generating voids which would interfere with heat transfer.

Greiner, Leonard (2853-A Hickory Pl., Costa Mesa, CA 92626)

1984-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "disciplines chemical dynamics" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


241

Chemical heat pump  

DOE Patents [OSTI]

A chemical heat pump system is disclosed for use in heating and cooling structures such as residences or commercial buildings. The system is particularly adapted to utilizing solar energy, but also increases the efficiency of other forms of thermal energy when solar energy is not available. When solar energy is not available for relatively short periods of time, the heat storage capacity of the chemical heat pump is utilized to heat the structure, as during nighttime hours. The design also permits home heating from solar energy when the sun is shining. The entire system may be conveniently rooftop located. In order to faciliate installation on existing structures, the absorber and vaporizer portions of the system may each be designed as flat, thin wall, thin pan vessels which materially increase the surface area available for heat transfer. In addition, this thin, flat configuration of the absorber and its thin walled (and therefore relatively flexible) construction permits substantial expansion and contraction of the absorber material during vaporization and absorption without generating voids which would interfere with heat transfer.

Greiner, Leonard (2853-A Hickory Pl., Costa Mesa, CA 92626)

1984-01-01T23:59:59.000Z

242

SIAM conference on applications of dynamical systems  

SciTech Connect (OSTI)

A conference (Oct.15--19, 1992, Snowbird, Utah; sponsored by SIAM (Society for Industrial and Applied Mathematics) Activity Group on Dynamical Systems) was held that highlighted recent developments in applied dynamical systems. The main lectures and minisymposia covered theory about chaotic motion, applications in high energy physics and heart fibrillations, turbulent motion, Henon map and attractor, integrable problems in classical physics, pattern formation in chemical reactions, etc. The conference fostered an exchange between mathematicians working on theoretical issues of modern dynamical systems and applied scientists. This two-part document contains abstracts, conference program, and an author index.

Not Available

1992-01-01T23:59:59.000Z

243

DYNAMICS AND CONTROL OF DISTILLATION COLUMNS -A CRITICAL SURVEY  

E-Print Network [OSTI]

: 47-7-594080 Figure 1: Typical simple distillation column. zF, yD and xB are mole fractions. tureDYNAMICS AND CONTROL OF DISTILLATION COLUMNS - A CRITICAL SURVEY Sigurd Skogestad Chemical cation and Control, 18, 177-217, 1997. Abstract Distillation column dynamics and control has been viewed

Skogestad, Sigurd

244

DYNAMICS AND CONTROL OF DISTILLATION COLUMNS A CRITICAL SURVEY  

E-Print Network [OSTI]

distillation column. z F , yD and xB are mole fractions. ture review, but a few new ideas are also presentedDYNAMICS AND CONTROL OF DISTILLATION COLUMNS ≠ A CRITICAL SURVEY Sigurd Skogestad \\Lambda Chemical, Identification and Control, 18, 177≠217, 1997. Abstract Distillation column dynamics and control has been viewed

Skogestad, Sigurd

245

Dynamic Modelling for Control of Fuel Cells Federico Zenith  

E-Print Network [OSTI]

Dynamic Modelling for Control of Fuel Cells Federico Zenith Sigurd Skogestad Department of Chemical Engineering Norwegian University of Science and Technology ( ntnu) Trondheim Abstract Fuel-cell dynamics have been investigated with a variable-resistance board applied to a high temperature polymer fuel cell

Skogestad, Sigurd

246

CHEMICAL ENGINEERING 2012-2014 CATALOG  

E-Print Network [OSTI]

CHEMICAL ENGINEERING 2012-2014 CATALOG (catalog valid until August 2020) Suggested Arrangement 204, Introduction to Chemical Practice............................2 CHE 102, Introduction to Chemical ..............................1 CHE 317, Intro to Chemical Engineering Analysis...................3 CH 353, Physical Chemistry

Texas at Austin, University of

247

CHEMICAL SENSORS School of Chemistry and Biochemistry  

E-Print Network [OSTI]

CHEMICAL SENSORS CHEM 6282 School of Chemistry and Biochemistry Chemical sensors physics and electronics or a chemical instrumentation course. The topics covered will include general theory of chemical recognition, electrochemical, optical, mass sensors and data reduction. Text: J

Sherrill, David

248

Reaction dynamics in polyatomic molecular systems  

SciTech Connect (OSTI)

The goal of this program is the development of theoretical methods and models for describing the dynamics of chemical reactions, with specific interest for application to polyatomic molecular systems of special interest and relevance. There is interest in developing the most rigorous possible theoretical approaches and also in more approximate treatments that are more readily applicable to complex systems.

Miller, W.H. [Lawrence Berkeley Laboratory, CA (United States)

1993-12-01T23:59:59.000Z

249

Tetramethylenedisulfotetramine Alters Ca2+ Dynamics in Cultured  

E-Print Network [OSTI]

Tetramethylenedisulfotetramine Alters Ca2+ Dynamics in Cultured Hippocampal Neurons: Mitigation Avenue, Davis, CA 95616. Fax: (530) 752-4698. E-mail: inpessah@ucdavis.edu. Received July 4, 2012 a chemical threat agent. We characterized TETS as an activator of spontaneous Ca2+ oscillations and elec

Hammock, Bruce D.

250

Chemical engineers design, control and optimize large-scale chemical, physicochemical and  

E-Print Network [OSTI]

, Biochemical, Environmental, Petroleum Engineering and Nantoechnology. CHEMICAL&MATERIALSSCIENCE CHE OVERVIEW of Science 131 units · Chemical Engineering (Petroleum) Bachelor of Science 136 units · Chemical Engineering38 Chemical engineers design, control and optimize large-scale chemical, physicochemical

Rohs, Remo

251

Chemical comminution of coal  

SciTech Connect (OSTI)

The objective of the present research is to study the chemical reactivity of a mixture of methyl alcohol and aqueous sodium hydroxide solution in the temperature range 298 to 363 K, and a caustic concentration of 0 to 10 wt. %, on an Iowa bituminous coal. The sample studied was collected from coal zone 4, equivalent to most historical references to Laddsdale coal. The coals in this zone are typical high-sulfur, high-ash middle Pennsylvania Cherokee group coals. The apparent rank is high-volatile C bituminous coal. The relatively high content of sulfur and 23 other elements in these coals is related to near neutral (6-8) pH conditions in the depositional and early diagenetic environments, and to postdepositional sphalerite/calcite/pyrite/kaolinite/barite mineralization.

Mamaghani, A.H.; Beddow, J.K.; Vetter, A.F.

1987-02-01T23:59:59.000Z

252

Chemical heat pump  

DOE Patents [OSTI]

A chemical heat pump system is disclosed for use in heating and cooling structures such as residences or commercial buildings. The system is particularly adapted to utilizing solar energy, but also increases the efficiency of other forms of thermal energy when solar energy is not available. When solar energy is not available for relatively short periods of time, the heat storage capacity of the chemical heat pump is utilized to heat the structure as during nighttime hours. The design also permits home heating from solar energy when the sun is shining. The entire system may be conveniently rooftop located. In order to facilitate installation on existing structures, the absorber and vaporizer portions of the system may each be designed as flat, thin wall, thin pan vessels which materially increase the surface area available for heat transfer. In addition, this thin, flat configuration of the absorber and its thin walled (and therefore relatively flexible) construction permits substantial expansion and contraction of the absorber material during vaporization and absorption without generating voids which would interfere with heat transfer. The heat pump part of the system heats or cools a house or other structure through a combination of evaporation and absorption or, conversely, condensation and desorption, in a pair of containers. A set of automatic controls change the system for operation during winter and summer months and for daytime and nighttime operation to satisfactorily heat and cool a house during an entire year. The absorber chamber is subjected to solar heating during regeneration cycles and is covered by one or more layers of glass or other transparent material. Daytime home air used for heating the home is passed at appropriate flow rates between the absorber container and the first transparent cover layer in heat transfer relationship in a manner that greatly reduce eddies and resultant heat loss from the absorbant surface to ambient atmosphere.

Greiner, Leonard (2750-C Segerstrom Ave., Santa Ana, CA 92704)

1980-01-01T23:59:59.000Z

253

Symbolic dynamics  

E-Print Network [OSTI]

This chapter presents some of the links between automata theory and symbolic dynamics. The emphasis is on two particular points. The first one is the interplay between some particular classes of automata, such as local automata and results on embeddings of shifts of finite type. The second one is the connection between syntactic semigroups and the classification of sofic shifts up to conjugacy.

Bťal, M -P; Eilers, S; Perrin, D

2010-01-01T23:59:59.000Z

254

Appendix G. Chemicals Annual Site Environmental Report  

E-Print Network [OSTI]

Appendix G. Chemicals #12;Annual Site Environmental Report Appendix G. Chemicals G-3 Appendix G chemicals. Through the use of chemicals, we can increase food production, cure diseases, build more. Chemicals This appendix presents basic facts about chemicals. The information is intended to be a basis

Pennycook, Steve

255

FAQS Reference Guide- Chemical Processing  

Broader source: Energy.gov [DOE]

This reference guide addresses the competency statements in the February 2010 edition of DOE-STD-1176-2010, Chemical Processing Functional Area Qualification Standard.

256

Chemical substructure analysis in toxicology  

SciTech Connect (OSTI)

A preliminary examination of chemical-substructure analysis (CSA) demonstrates the effective use of the Chemical Abstracts compound connectivity file in conjunction with the bibliographic file for relating chemical structures to biological activity. The importance of considering the role of metabolic intermediates under a variety of conditions is illustrated, suggesting structures that should be examined that may exhibit potential activity. This CSA technique, which utilizes existing large files accessible with online personal computers, is recommended for use as another tool in examining chemicals in drugs. 2 refs., 4 figs.

Beauchamp, R.O. Jr. [Center for Information on Toxicology and Environment, Raleigh, NC (United States)

1990-12-31T23:59:59.000Z

257

ChemicalChemical StratigraphyStratigraphy Oxygen, Carbon, Strontium,  

E-Print Network [OSTI]

2/25/2009 1 ChemicalChemical StratigraphyStratigraphy Oxygen, Carbon, Strontium, Sulphur Isotopes Change. Carbon Dioxide Information Analysis Center, Oak Ridge National Laboratory, U.S. Department evolves over time, with the geological time line running from right to left in this graph. The increased

Miami, University of

258

Chemical Biology Chemical Screening for Hair Cell Loss and Protection  

E-Print Network [OSTI]

Chemical Biology Chemical Screening for Hair Cell Loss and Protection in the Zebrafish Lateral Line Rubel,1,2 and David W. Raible1,4 Abstract In humans, most hearing loss results from death of hair cells, the mechanosensory receptors of the inner ear. Two goals of current hearing research are to protect hair cells from

Rubel, Edwin

259

Semiclassical molecular dynamics simulations of excited state double-proton transfer in 7-azaindole dimers  

E-Print Network [OSTI]

Semiclassical molecular dynamics simulations of excited state double-proton transfer in 7-azaindole chemical re- action. In this paper we report the first application of molecular dynamics simulation methods to model the excited state double-proton transfer dynamics involved in the tau- tomerization reaction

Miller, William H.

260

Flavor Dynamics  

E-Print Network [OSTI]

The purpose of BRAHMS is to survey the dynamics of relativistic heavy ion (as well as pp and d-A) collisions over a very wide range of rapidity and transverse momentum. The sum of these data may give us a glimpse of the initial state of the system, its transverse and longitudinal evolution and how the nature of the system changes with time. Here I will concentrate on the origin and dynamics of the light flavors, i.e. the creation and transport of the up, down and strange quarks. The results presented here are certainly not the end of the story. It is my hope that in a few years new detectors will reveal the rapidity dependence of the charm and bottom quarks.

Michael Murray; for the BRAHMS Collaboration

2007-10-24T23:59:59.000Z

Note: This page contains sample records for the topic "disciplines chemical dynamics" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


261

A Chemical Kinetic Model of Transcriptional Elongation  

E-Print Network [OSTI]

A chemical kinetic model of the elongation dynamics of RNA polymerase along a DNA sequence is introduced. The proposed model governs the discrete movement of the RNA polymerase along a DNA template, with no consideration given to elastic effects. The model's novel concept is a ``look-ahead'' feature, in which nucleotides bind reversibly to the DNA prior to being incorporated covalently into the nascent RNA chain. Results are presented for specific DNA sequences that have been used in single-molecule experiments of the random walk of RNA polymerase along DNA. By replicating the data analysis algorithm from the experimental procedure, the model produces velocity histograms, enabling direct comparison with these published results.

Yujiro Richard Yamada; Charles S. Peskin

2006-05-23T23:59:59.000Z

262

MATLAB Applications in Chemical Engineering  

E-Print Network [OSTI]

MATLAB¬ģ Applications in Chemical Engineering James A. Carnell North Carolina State University MATLAB is a powerful code-based mathematical and engineering calculation program. It performs all introduction to MATLAB in chemical engineering, and in no way attempts to be a comprehensive MATLAB learning

Al-Juhani, Abdulhadi A.

263

Chemical Evolution in Omega Centauri  

E-Print Network [OSTI]

The globular cluster Omega Centauri displays evidence of a complex star formation history and peculiar internal chemical evolution, setting it apart from essentially all other globular clusters of the Milky Way. In this review we discuss the nature of the chemical evolution that has occurred within Omega Cen and attempt to construct a simple scenario to explain its chemistry.

Verne V. Smith

2003-10-22T23:59:59.000Z

264

Method of forming a chemical composition  

DOE Patents [OSTI]

A method of forming a chemical composition such as a chemical hydride is described and which includes the steps of selecting a composition having chemical bonds and which is capable of forming a chemical hydride; providing a source of hydrogen; and exposing the selected composition to an amount of ionizing radiation to encourage the changing of the chemical bonds of the selected composition, and chemically reacting the selected composition with the source of hydrogen to facilitate the formation of a chemical hydride.

Bingham, Dennis N. (Idaho Falls, ID); Wilding, Bruce M. (Idaho Falls, ID); Klingler, Kerry M. (Idaho Falls, ID); Zollinger, William T. (Idaho Falls, ID); Wendt, Kraig M. (Idaho Falls, ID)

2007-10-09T23:59:59.000Z

265

Dynamical transitions of turing patterns.  

SciTech Connect (OSTI)

This paper is concerned with the formation and persistence of spatiotemporal patterns in binary mixtures of chemically reacting species, where one of the species is an activator, the other an inhibitor of the chemical reaction. The system of reaction-diffusion equations is reduced to a finite system of ordinary differential equations by a variant of the centre-manifold reduction method. The reduced system fully describes the local dynamics of the original system near transition points at the onset of instability. The attractor-bifurcation theory is used to give a complete characterization of the bifurcated objects in terms of the physical parameters of the problem. The results are illustrated for the Schnakenberg model.

Kaper, H. G.; Wang, S.; Yari, M.; Mathematics and Computer Science; Indiana Univ.

2009-01-01T23:59:59.000Z

266

Chemical analysis quality assurance at the Idaho Chemical Processing Plant  

SciTech Connect (OSTI)

The Idaho Chemical Processing Plant (ICPP) is a uranium reprocessing facility operated by Westinghouse Idaho Nuclear Company for the Department of Energy at the Idaho National Engineering Laboratory (INEL). The chemical analysis support required for the plant processes is provided by a chemical analysis staff of 67 chemists, analysts, and support personnel. The documentation and defense of the chemical analysis data at the ICPP has evolved into a complete chemical analysis quality assurance program with training/qualification and requalification, chemical analysis procedures, records management and chemical analysis methods quality control as major elements. The quality assurance procedures are implemented on a central analytical computer system. The individual features provided by the computer system are automatic method selection for process streams, automation of method calculations, automatic assignment of bias and precision estimates at analysis levels to all method results, analyst specific daily requalification or with-method-use requalification, untrained or unqualified analyst method lockout, statistical testing of process stream results for replicate agreement, automatic testing of process results against pre-established operating, safety, or failure limits at varying confidence levels, and automatic transfer and report of analysis data plus the results of all statistical testing to the Production Department.

Hand, R.L.; Anselmo, R.W.; Black, D.B.; Jacobson, J.J.; Lewis, L.C.; Marushia, P.C.; Spraktes, F.W.; Zack, N.R.

1985-01-01T23:59:59.000Z

267

THE JOURNAL OF CHEMICAL PHYSICS 135, 084103 (2011) How accurate are the nonlinear chemical Fokker-Planck and chemical  

E-Print Network [OSTI]

THE JOURNAL OF CHEMICAL PHYSICS 135, 084103 (2011) How accurate are the nonlinear chemical Fokker-Planck and chemical Langevin equations? Ramon Grima,1,a) Philipp Thomas,1,2 and Arthur V. Straube2 1 School August 2011) The chemical Fokker-Planck equation and the corresponding chemical Langevin equation are com

Straube, Arthur V.

268

45 2014-15 Suggested Course Plan ChemICal (polYmeRs/maTeRIals)  

E-Print Network [OSTI]

Processes ChE 405: Probability and Statistics for CHE or ISE 460: Engineering Economy or BUAD 301: Technical Dynamics ChE 472: Polymer Science & Engineering ChE 476: Chemical Engineering Materials or mASC 310. V GEN ED. VI engIneeRIng (60 unITs) ChE 120: Intro. to Chemical Engineering ChE 205: Numerical

Zhou, Chongwu

269

ITP Chemicals: Energy and Environmental Profile of the U.S. Chemical...  

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

Opportunity Assessment for the Pulp and Paper, Chemical Manufacturing, and Petroleum Refining Industries ITP Chemicals: Chemical Bandwidth Study - Energy Analysis: A Powerful Tool...

270

Dynamic Positioning Simulator Dynamic Positioning Simulator  

E-Print Network [OSTI]

Simulator 5 / 24 #12;Dynamic Positioning Simulator Dynamic Positioning Why Dynamic Positioning? Advantages Dynamic Positioning: No tugboats needed; Offshore set-up is quick; Power saving; Precision situations more on Ship: Wind Force Fw = 1 2 air V 2 rw CXw (rw )AT 1 2 air V 2 rw CYw (rw )AL Mw = 1 2 air V 2 rw CMw (rw

Vuik, Kees

271

Use of comparative genomics approaches to characterize interspecies differences in response to environmental chemicals: Challenges, opportunities, and research needs  

SciTech Connect (OSTI)

A critical challenge for environmental chemical risk assessment is the characterization and reduction of uncertainties introduced when extrapolating inferences from one species to another. The purpose of this article is to explore the challenges, opportunities, and research needs surrounding the issue of how genomics data and computational and systems level approaches can be applied to inform differences in response to environmental chemical exposure across species. We propose that the data, tools, and evolutionary framework of comparative genomics be adapted to inform interspecies differences in chemical mechanisms of action. We compare and contrast existing approaches, from disciplines as varied as evolutionary biology, systems biology, mathematics, and computer science, that can be used, modified, and combined in new ways to discover and characterize interspecies differences in chemical mechanism of action which, in turn, can be explored for application to risk assessment. We consider how genetic, protein, pathway, and network information can be interrogated from an evolutionary biology perspective to effectively characterize variations in biological processes of toxicological relevance among organisms. We conclude that comparative genomics approaches show promise for characterizing interspecies differences in mechanisms of action, and further, for improving our understanding of the uncertainties inherent in extrapolating inferences across species in both ecological and human health risk assessment. To achieve long-term relevance and consistent use in environmental chemical risk assessment, improved bioinformatics tools, computational methods robust to data gaps, and quantitative approaches for conducting extrapolations across species are critically needed. Specific areas ripe for research to address these needs are recommended.

Burgess-Herbert, Sarah L., E-mail: sarah.burgess@alum.mit.edu [American Association for the Advancement of Science (AAAS) Science and Technology Policy Fellow at the US Environmental Protection Agency (EPA), 2009Ė10 (United States); Euling, Susan Y. [National Center for Environmental Assessment, Office of Research and Development, US Environmental Protection Agency, Washington, DC 20460 (United States)

2013-09-15T23:59:59.000Z

272

Experimental characterization and chemical kinetics study of chemical looping combustion  

E-Print Network [OSTI]

Chemical looping combustion (CLC) is one of the most promising technologies to achieve carbon capture in fossil fuel power generation plants. A novel rotary-bed reactor concept was proposed by Zhao et. al. [1] in 2013. It ...

Chen, Tianjiao, S.M. Massachusetts Institute of Technology

2014-01-01T23:59:59.000Z

273

Coatings with controlled porosity and chemical properties  

DOE Patents [OSTI]

Coatings and sensors are described having both steric and chemical selectivity. Controlled porosity provides the steric selectivity, whereas chemically tailored film properties, using controlled composition or modification by coupling agents, chemical species replacement, or chemical species within pores, provide the chemical selectivity. Single or multiple layers may be provided.

Frye, G.C.; Brinker, C.J.; Doughty, D.H.; Bein, T.; Moller, K.

1993-07-06T23:59:59.000Z

274

Coatings with controlled porosity and chemical properties  

DOE Patents [OSTI]

Coatings and sensors having both steric and chemical selectivity. Controlled porosity provides the steric selectivity, whereas chemically tailored film properties, using controlled composition or modification by coupling agents, chemical species replacement, or chemical species within pores, provide the chemical selectivity. Single or multiple layers may be provided.

Frye, Gregory C. (P.O. Box 763, Cedar Crest, NM 87008); Brinker, C. Jeffrey (14 Eagle Nest Dr., NE., Albuquerque, NM 87122); Doughty, Daniel H. (11724 Woodmar La., NE., Albuquerque, NM 87111); Bein, Thomas (1114 Princeton Dr., NE., Albuquerque, NM 87106); Moller, Karin (1114 Princeton Dr., NE., Albuquerque, NM 87106)

1993-01-01T23:59:59.000Z

275

Coatings with controlled porosity and chemical properties  

DOE Patents [OSTI]

Coatings and sensors having both steric and chemical selectivity. Controlled porosity provides the steric selectivity, whereas chemically tailored film properties, using controlled composition or modification by coupling agents, chemical species replacement, or chemical species within pores, provide the chemical selectivity. Single or multiple layers may be provided.

Frye, Gregory C. (Bernalillo County, NM); Brinker, C. Jeffrey (Albuquerque, NM); Doughty, Daniel H. (Albuquerque, NM); Bein, Thomas (Albuquerque, NM); Moller, Karin (Albuquerque, NM)

1996-01-01T23:59:59.000Z

276

Coatings with controlled porosity and chemical properties  

DOE Patents [OSTI]

Coatings and sensors are disclosed having both steric and chemical selectivity. Controlled porosity provides the steric selectivity, whereas chemically tailored film properties, using controlled composition or modification by coupling agents, chemical species replacement, or chemical species within pores, provide the chemical selectivity. Single or multiple layers may be provided. 7 figs.

Frye, G.C.; Brinker, C.J.; Doughty, D.H.; Bein, T.; Moller, K.

1996-12-31T23:59:59.000Z

277

Chemical microreactor and method thereof  

DOE Patents [OSTI]

A method for forming a chemical microreactor includes forming at least one capillary microchannel in a substrate having at least one inlet and at least one outlet, integrating at least one heater into the chemical microreactor, interfacing the capillary microchannel with a liquid chemical reservoir at the inlet of the capillary microchannel, and interfacing the capillary microchannel with a porous membrane near the outlet of the capillary microchannel, the porous membrane being positioned beyond the outlet of the capillary microchannel, wherein the porous membrane has at least one catalyst material imbedded therein.

Morse, Jeffrey D. (Martinez, CA); Jankowski, Alan (Livermore, CA)

2011-08-09T23:59:59.000Z

278

Non-planar chemical preconcentrator  

DOE Patents [OSTI]

A non-planar chemical preconcentrator comprises a high-surface area, low mass, three-dimensional, flow-through sorption support structure that can be coated or packed with a sorptive material. The sorptive material can collect and concentrate a chemical analyte from a fluid stream and rapidly release it as a very narrow temporal plug for improved separations in a microanalytical system. The non-planar chemical preconcentrator retains most of the thermal and fabrication benefits of a planar preconcentrator, but has improved ruggedness and uptake, while reducing sorptive coating concerns and extending the range of collectible analytes.

Manginell, Ronald P. (Albuquerque, NM); Adkins, Douglas R. (Albuquerque, NM); Sokolowski, Sara S. (Albuquerque, NM); Lewis, Patrick R. (Albuquerque, NM)

2006-10-10T23:59:59.000Z

279

The chemical industry, by country  

SciTech Connect (OSTI)

As part of its ACHEMA coverage, Hydrocarbon Processing contacted executives of petrochemical/chemical industry trade associations in 11 countries, seeking views of on the state of the industry. These reports thus provide an added dimension to feature articles in this issue that focus on petrochemical/chemical-product supply/demand trends, economic forecasts, etc. The nations represented here were chosen for commentary because collectively they contain most of the world's petrochemical capacity. Space limitations prohibit the publishing of commentaries from all countries that have petrochemical/chemical capacity. The countries are: Belgium, China, France, Germany, India, Italy, Japan, Korea, The Netherlands, United Kingdom, and the United States.

Not Available

1994-05-01T23:59:59.000Z

280

Sources of toxicity and exposure information for identifying chemicals of high concern to children  

SciTech Connect (OSTI)

Due to the large number of chemicals in commerce without adequate toxicity characterization data, coupled with an ineffective federal policy for chemical management in the United States, many states are grappling with the challenge to identify toxic chemicals that may pose a risk to human health and the environment. Specific populations (e.g., children, elderly) are particularly sensitive to these toxic chemicals. In 2008, the Children's Safe Product Act (CSPA) was passed in Washington State. The CSPA included specific requirements to identify High Priority Chemicals (HPCs) and Chemicals of High Concern to Children (CHCCs). To implement this legislation, a methodology was developed to identify HPCs from authoritative scientific and regulatory sources on the basis of toxicity criteria. Another set of chemicals of concern was then identified from authoritative sources, based on their potential exposure to children. Exposure potential was evaluated by identifying chemicals detected in biomonitoring studies (i.e., human tissues), as well as those present in residential exposure media (e.g., indoor air, house dust, drinking water, consumer products). Accordingly, CHCCs were defined as HPCs that also appear in biomonitoring studies or relevant exposure media. For chemicals with unique Chemical Abstracts Service (CAS) numbers, we identified 2044 HPCs and 2219 chemicals with potential exposure to children, resulting in 476 CHCCs. The process of chemical identification is dynamic, so that chemicals may be added or subtracted as new information becomes available. Although beyond the scope of this paper, the 476 CHCCs will be prioritized in a more detailed assessment, based on the strength and weight of evidence of toxicity and exposure data. Our approach was developed to be flexible which allows the addition or removal of specific sources of toxicity or exposure information, as well as transparent to allow clear identification of inputs. Although the methodology was constrained by specific requirements in the CSPA, the intent of this work was to identify HPCs and CHCCs that might guide future regulatory actions and inform chemical management policies, aimed at protecting children's health.

Stone, Alex, E-mail: alst461@ecy.wa.go [Washington State Department of Ecology, P.O. Box 47600, Olympia, WA 98504-7600 (United States); Delistraty, Damon, E-mail: ddel461@ecy.wa.go [Washington State Department of Ecology, Spokane, WA 99205-1295 (United States)

2010-11-15T23:59:59.000Z

Note: This page contains sample records for the topic "disciplines chemical dynamics" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


281

Chemical and Biological Engineering Department Code 1 Department of Chemical & Biological Engineering  

E-Print Network [OSTI]

Chemical and Biological Engineering Department Code 1 CODE of the Department of Chemical of Chemical & Biological Engineering. For clarity of presentation, some passages are copied directly from shall offer an undergraduate chemical and biological engineering program of technological, scientific

282

Biomedical | Chemical & Biomolecular | Civil & Environmental | Electrical & Computer | Industrial | Mechanical | Petroleum Careers in Chemical Engineering  

E-Print Network [OSTI]

| Mechanical | Petroleum Careers in Chemical Engineering Career opportunities in chemical engineering that new chemical engineering graduates have an average starting salary of $67,600. The University from industry professionals and participate in activities that promote engineering. Chemical

Azevedo, Ricardo

283

Molecular beam studies of reaction dynamics  

SciTech Connect (OSTI)

Purpose of this research project is two-fold: (1) to elucidate detailed dynamics of simple elementary reactions which are theoretically important and to unravel the mechanism of complex chemical reactions or photo chemical processes which play an important role in many macroscopic processes and (2) to determine the energetics of polyatomic free radicals using microscopic experimental methods. Most of the information is derived from measurement of the product fragment translational energy and angular distributions using unique molecular beam apparati designed for these purposes.

Lee, Y.T.

1987-03-01T23:59:59.000Z

284

New Science for Chemicals Policy  

E-Print Network [OSTI]

of the State-of-the-Science of Endocrine Disruptors (WHO,461, 472 (2009). 17. NRC, Science and Decisions: AdvancingPOLICYFORUM SCIENCE AND REGULATION New Science for Chemicals

2009-01-01T23:59:59.000Z

285

Genotoxicity of complex chemical mixtures  

E-Print Network [OSTI]

studies, specifically on carbon monoxide. Schmiedeberg focused on liver and its detoxification mechanisms. Lewin?s work included chronic toxicity of narcotics, along with toxicity of chemicals such as methanol, glycerol, acrolein and chloroform...

Phillips, Tracie Denise

2009-05-15T23:59:59.000Z

286

Mass-sensitive chemical preconcentrator  

DOE Patents [OSTI]

A microfabricated mass-sensitive chemical preconcentrator actively measures the mass of a sample on an acoustic microbalance during the collection process. The microbalance comprises a chemically sensitive interface for collecting the sample thereon and an acoustic-based physical transducer that provides an electrical output that is proportional to the mass of the collected sample. The acoustic microbalance preferably comprises a pivot plate resonator. A resistive heating element can be disposed on the chemically sensitive interface to rapidly heat and release the collected sample for further analysis. Therefore, the mass-sensitive chemical preconcentrator can optimize the sample collection time prior to release to enable the rapid and accurate analysis of analytes by a microanalytical system.

Manginell, Ronald P. (Albuquerque, NM); Adkins, Douglas R. (Albuquerque, NM); Lewis, Patrick R. (Albuquerque, NM)

2007-01-30T23:59:59.000Z

287

Chemical Evolution of CNO abundances  

E-Print Network [OSTI]

New low and intermediate star yields calculated by Buell (1997) are evaluated by using them in a Galactic Chemical Evolution model. We analyze their effects on CNO elemental abundances

M. Gavilan; M. Molla

2003-02-05T23:59:59.000Z

288

CHEMICAL ENGINEERING Fall 2013-Winter 2014  

E-Print Network [OSTI]

ADVANCED CHEMICAL ENGINEERING Fall 2013-Winter 2014 Certificate Program CONTINUING AND PROFESSIONAL EDUCATIONCONTINUING AND PROFESSIONAL EDUCATION #12;About the Advanced Chemical Engineering Certificate Program The new Advanced Chemical Engineering Certificate Program offers professionals in chemi- cal engineering

California at Davis, University of

289

chemical (CHE) CHE overview programs available  

E-Print Network [OSTI]

, Environmental, Manufacturing and Petroleum En- gineering. Programs Available · Chemical Engineering Bachelor Engineering (Environmental) Bachelor of Science 135 units · Chemical Engineering (Petroleum) Bachelor of Science 136 units · Chemical Engineering (Polymer Science) Bachelor of Science 136 units · Petroleum

Rohs, Remo

290

LABORATORY CHEMICAL WASTE DISPOSAL POSTER (Post Near Chemical Waste Storage Area)  

E-Print Network [OSTI]

WSTPS.rtf LABORATORY CHEMICAL WASTE DISPOSAL POSTER (Post Near Chemical Waste Storage Area) Excess Chemicals and Chemical Wastes · Toxic and Flammable Chemicals - These cannot go down the drain. Call Environmental Health and Safety (EHSO) at x-2723 for collection. · Corrosive Chemicals (Acids & Bases) - When

Oliver, Douglas L.

291

Multidimensional simulation and chemical kinetics development...  

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

processes. deer09aceves.pdf More Documents & Publications Chemical Kinetic Research on HCCI & Diesel Fuels Chemical Kinetic Research on HCCI & Diesel Fuels Simulation of High...

292

Correlations Between Optical, Chemical and Physical Properties...  

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

Correlations Between Optical, Chemical and Physical Properties of Biomass Burn Aerosols. Correlations Between Optical, Chemical and Physical Properties of Biomass Burn Aerosols....

293

Chemical Safety Program - Library | Department of Energy  

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

Library Chemical Safety Program - Library Operating Experience Level 3 OSHA's Revised Hazard Communication Standard Safe Management of Mercury DOE Documents & Guidelines Chemical...

294

Sandia Researchers Develop Promising Chemical Technology for...  

Energy Savers [EERE]

Sandia Researchers Develop Promising Chemical Technology for Energy Storage Sandia Researchers Develop Promising Chemical Technology for Energy Storage March 7, 2012 - 9:50am...

295

Tribo-Chemical Modeling of Copper CMP  

E-Print Network [OSTI]

TRIBO-CHEMICAL MODELING OF COPPER CMP Shantanu Tripathi 1 ,Technical Area: CMP (Copper) Abstract We are developing antribo-chemical model of copper CMP that considers abrasive

Tripathi, Shantanu; Doyle, Fiona; Dornfeld, David

2006-01-01T23:59:59.000Z

296

Correlation Between Optical Properties And Chemical Composition...  

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

Between Optical Properties And Chemical Composition Of Sputter-deposited Germanium Cxide (GeOx) Films . Correlation Between Optical Properties And Chemical Composition Of...

297

Chemical Homogeneity in Collinder 261 and Implications for Chemical Tagging  

E-Print Network [OSTI]

This paper presents abundances for 12 red giants of the old open cluster Collinder 261 based on spectra from VLT/UVES. Abundances were derived for Na, Mg, Si, Ca, Mn, Fe, Ni, Zr and Ba. We find the cluster has a solar-level metallicity of [Fe/H] = -0.03 dex. However some alpha elements were found to be enhanced. The star-to-star scatter was consistent with the expected measurement uncertainty for all elements. The observed rms scatter is as follows: Na = 0.07, Mg = 0.05, Si = 0.06, Ca = 0.05, Mn = 0.03, Fe = 0.02, Ni = 0.04, Zr = 0.12, and Ba = 0.03 dex. The intrinsic scatter was estimated to be less than 0.05 dex. Such high levels of homogeneity indicate that chemical information remains preserved in this old open cluster. We use the chemical homogeneity we have now established in Cr 261, Hyades and the HR1614 moving group to examine the uniqueness of the individual cluster abundance patterns, ie. chemical signatures. We demonstrate that the three studied clusters have unique chemical signatures, and discuss how other such signatures may be searched for in the future. Our findings support the prospect of chemically tagging disk stars to common formation sites in order to unravel the dissipative history of the Galactic disk.

G. M. De Silva; K. C. Freeman; M. Asplund; J. Bland-Hawthorn; M. S. Bessell; R. Collet

2006-11-28T23:59:59.000Z

298

Dynamic Testing of Gasifier Refractory  

SciTech Connect (OSTI)

The University of North Dakota (UND) Chemical Engineering Department in conjunction with the UND Energy & Environmental Research Center (EERC) have initiated a program to thoroughly examine the combined chemical (reaction and phase change) and physical (erosion) effects experienced by a variety of refractory materials during both normal operation and thermal cycling under slagging coal gasification conditions. The goal of this work is to devise a mechanism of refractory loss under these conditions. The controlled-atmospheric dynamic corrodent application furnace (CADCAF) is being utilized to simulate refractory/slag interactions under dynamic conditions that more realistically simulate the environment in a slagging coal gasifier than any of the static tests used previously by refractory manufacturers and researchers. Shakedown testing of the CADCAF has been completed. Samples of slag and refractory from the Tampa Electric Polk Power Station have been obtained for testing in the CADCAF. The slag has been dried and sieved to the size needed for our flowing slag corrosion tests. Screening tests are in currently in progress. Detailed analysis of corrosion rates from the first tests is in progress.

Michael D. Mann; Devdutt Shukla; Xi Hong; John P. Hurley

2004-09-27T23:59:59.000Z

299

Dynamic Testing of Gasifier Refractory  

SciTech Connect (OSTI)

The University of North Dakota (UND) Chemical Engineering Department in conjunction with the UND Energy & Environmental Research Center (EERC) have initiated a program to thoroughly examine the combined chemical (reaction and phase change) and physical (erosion) effects experienced by a variety of refractory materials during both normal operation and thermal cycling under slagging coal gasification conditions. The goal of this work is to devise a mechanism of refractory loss under these conditions. The controlled-atmospheric dynamic corrodent application furnace (CADCAF) is being utilized to simulate refractory/slag interactions under dynamic conditions that more realistically simulate the environment in a slagging coal gasifier than any of the static tests used previously by refractory manufacturers and researchers. Shakedown testing of the CADCAF is in progress. Samples of slag and refractory from the Tampa Electric Polk Power Station have been obtained for testing in the CADCAF. The slag has been dried and sieved to the size needed for our flowing slag corrosion tests. Testing is expected to begin in October.

Michael D. Mann; Devdutt Shukla; John P. Hurley

2003-09-27T23:59:59.000Z

300

Dynamics of a Tunable Superfluid Junction  

SciTech Connect (OSTI)

We study the population dynamics of a Bose-Einstein condensate in a double-well potential throughout the crossover from Josephson dynamics to hydrodynamics. At barriers higher than the chemical potential, we observe slow oscillations well described by a Josephson model. In the limit of low barriers, the fundamental frequency agrees with a simple hydrodynamic model, but we also observe a second, higher frequency. A full numerical simulation of the Gross-Pitaevskii equation giving the frequencies and amplitudes of the observed modes between these two limits is compared to the data and is used to understand the origin of the higher mode. Implications for trapped matter-wave interferometers are discussed.

LeBlanc, L. J.; Bardon, A. B.; McKeever, J.; Extavour, M. H. T.; Jervis, D.; Thywissen, J. H.; Piazza, F.; Smerzi, A. [Department of Physics, University of Toronto, 60 St. George, Toronto ON, M5S 1A7 (Canada); INO-CNR, BEC Center, and Dipartimento di Fisica, Via Sommarive 14, 38123 Povo, Trento (Italy)

2011-01-14T23:59:59.000Z

Note: This page contains sample records for the topic "disciplines chemical dynamics" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


301

ELIGIBLE DISCIPLINES FOR QEII-GSST PURPOSES The QEII-GSST program supports graduate students enrolled in research master's and doctoral  

E-Print Network [OSTI]

· Electrical Engineering · Engineering Science (may include Engineering, Engineering Physics, and Nuclear. Applied Sciences: · Aerospace (may include Aeronautical Engineering) · Biomedical Engineering · Chemical Engineering · Civil Engineering and Architecture (may include Landscape Architecture) · Computer Engineering

302

Chemically strengthened protection glasses for the applications of space solar cells  

SciTech Connect (OSTI)

The effects of chemically strengthened processing and the ion beam irradiation on the mechanical characteristics of space solar cell protection glasses are investigated using dynamic mechanical analysis and micro hardness instrument; also the corresponding optical properties were analyzed by utilizing the UV/visible spectrophotometer. The results suggest that the flexural strength, fracture toughness and surface characteristics are enhanced via the chemical strengthening process. Importantly, such process has a trivial influence with ?0.2% degradation on the transparency of chemically strengthened glasses in the band range of 350 ? 1000 nm, while exhibits an excellent resistance on radiation damage by ion beams bombardment, demonstrating an outstanding durability in the space radiation environment.

Wang, H. F., E-mail: whf2008@dhu.edu.cn [College of Material Science and Engineering, Donghua University, 2999 North Renmin Road, Songjiang District, Shanghai 201620 (China); Xing, G. Z., E-mail: guozhong.xing@unsw.edu.au; Zhang, L.; Li, S. [School of Materials Science and Engineering, The University of New South Wales, Sydney, New South Wales 2052 (Australia)] [School of Materials Science and Engineering, The University of New South Wales, Sydney, New South Wales 2052 (Australia); Wang, X. Y. [Department of Civil Engineering, Northeast Dianli University, Jilin 132012 (China)] [Department of Civil Engineering, Northeast Dianli University, Jilin 132012 (China); Zhang, L. L. [Zhuhai College of Jilin University, Zhuhai, Guangdong, 519041 (China)] [Zhuhai College of Jilin University, Zhuhai, Guangdong, 519041 (China)

2014-04-15T23:59:59.000Z

303

Cybersecurity Dynamics Shouhuai Xu  

E-Print Network [OSTI]

Cybersecurity Dynamics Shouhuai Xu Department of Computer Science, University of Texas at San Antonio ABSTRACT We explore the emerging field of Cybersecurity Dynamics, a candidate foundation for the Science of Cybersecurity. Keywords Cybersecurity dynamics, security model, security analysis 1

Xu, Shouhuai

304

Dynamic Testing of Gasifier Refractory  

SciTech Connect (OSTI)

As DOE continues to advance new power systems, materials issues are often pivotal in determining the ultimate efficiency that can be reached in the system. Refractory performance in slagging gasification represents one of these issues. The University of North Dakota (UND) Chemical Engineering Department in conjunction with the UND Energy & Environmental Research Center (EERC) have initiated a program to thoroughly examine the combined chemical (reaction and phase change) and physical (erosion) effects experienced by a variety of refractory materials during both normal operation and thermal cycling under slagging coal gasification conditions. The goal of this work is to devise a mechanism of refractory loss under these conditions. The focus of the proposed work is to test the corrosion resistance of commercially available refractories to flowing coal slag, and propose the mechanisms of corrosion for the conditions studied. Corrosion is the degradation of material surfaces or grain boundaries by chemical reactions with melts, liquids, or gases, causing loss of material and consequently a decrease in strength of the structure. In order to develop methods of reducing corrosion, the microstructure that is attacked must be identified along with the mechanism and rates of attack. Once these are identified, methods for reducing corrosion rates can be developed. The work will take advantage of equipment and experimental techniques developed at the EERC under funding from several DOE programs. The controlled-atmospheric dynamic corrodent application furnace (CADCAF) will be utilized to simulate refractory/slag interactions under dynamic conditions that more realistically simulate the environment in a slagging coal gasifier than any of the static tests used previously by refractory manufacturers and researchers. To date, efforts have focused on final shakedown of the CADCAF and obtaining representative samples of slag and refractory for testing.

Michael D. Mann; John P. Hurley

2002-09-27T23:59:59.000Z

305

Baytown Xylene Fractionation Energy Reduction using Dynamic Matrix Control (DMC)  

E-Print Network [OSTI]

Baytown Xylene Fractionation Energy Reduction using Dynamic Matrix Control (DMC) IETC 2014 New Orleans, Louisiana David Hokanson ExxonMobil Research and Engineering May 22, 2014 ESL-IE-14-05-33 Proceedings of the Thrity-Sixth Industrial Energy... Conference New Orleans, LA. May 20-23, 2014 3Baytown Chemical / Refining Complex ExxonMobil Baytown Refining & Chemical Complex ē One of worldís largest integrated, most technologically advanced petroleum/petrochemical complexes, in operation since 1919...

Hokanson, D.

2014-01-01T23:59:59.000Z

306

Protein Dynamics and Biocatalysis  

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

Protein Dynamics and Biocatalysis Protein Dynamics and Biocatalysis 1998 Annual Report Grand Challenge Projects biocatalysis.gif A model of the Michaelis complex for the TEM-1...

307

The chemical industry, by country  

SciTech Connect (OSTI)

Beijing will be the site for the third ACHEMASIA, international petrochemical and chemical exhibition and conference, May 15--20, 1995. In preparation for this conference, Hydrocarbon Processing contacted executives of petrochemical/chemical industries and trade associations, seeking views on the state of the industry. The Asia-Pacific region is the center of new construction and expanded capacity and also a mixture of mature, developing and emerging petrochemical industries. Established countries must mold and grow with emerging economies as the newcomers access natural resources and develop their own petrochemical infrastructures. The following nation reports focus on product supply/demand trends, economic forecasts, new construction, etc. Space limitations prohibit publishing commentaries from all countries that have petrochemical/chemical capacity. Reports are published from the following countries: Australia, China, Japan, Korea, Malaysia, Philippines, Thailand, and Vietnam.

Not Available

1995-03-01T23:59:59.000Z

308

HPI's role in chemicals' future  

SciTech Connect (OSTI)

The hydrocarbon processing industry (HPI) concerns manufacturing of products from natural gas and crude petroleum oils. Also included are those other natural raw materials such as coal, kerogen and shale oil that are sources of fuels called ''synfuels,'' denoting these products are made from raw materials other than natural gas or crude petroleum oil. So the HPI is a major producer and consumer of thousands of different chemicals. Gathering supporting statistics remains largely a problem of definition and convention. Whether one chemical or another is included in a specific list often depends on the way its manufacturer is classified. To judge HPI's potential impact on worldwide chemical manufacturing, the authors reviewed all listings of petrochemical projects included in the ''HPI Construction Boxscore'' during the past few years. From the total, they selected those that had been announced in 1986 or later. Once the list was established, they added 1985 counts to help establish trends. This article discusses the resulting list.

Hoffman, H.L.; Riddle, L.

1988-02-01T23:59:59.000Z

309

Chemical Evolution of the Galaxy  

E-Print Network [OSTI]

Standard models for the chemical evolution of the Galaxy are reviewed with particular emphasis on the history of the abundance gradients in the disk. The effects on the disk structure and metallicity of gas accretion are discussed, showing that a significant fraction of the current disk mass has been accreted in the last Gyrs and that the chemical abundances of the infalling gas can be non primordial but should not exceed 0.3 Z(sun). The distributions with time and with galactocentric distance of chemical elements are discussed, comparing the observational data with the corresponding theoretical predictions by standard models, which reproduce very well the ISM abundances at various epochs, but not equally well all the features derived from observations of old stellar objects.

M. Tosi

1994-11-15T23:59:59.000Z

310

Chemical Hygiene and Safety Plan  

SciTech Connect (OSTI)

The objective of this Chemical Hygiene and Safety Plan (CHSP) is to provide specific guidance to all LBL employees and contractors who use hazardous chemicals. This Plan, when implemented, fulfills the requirements of both the Federal OSHA Laboratory Standard (29 CFR 1910.1450) for laboratory workers, and the Federal OSHA Hazard Communication Standard (29 CFR 1910.1200) for non-laboratory operations (e.g., shops). It sets forth safety procedures and describes how LBL employees are informed about the potential chemical hazards in their work areas so they can avoid harmful exposures and safeguard their health. Generally, communication of this Plan will occur through training and the Plan will serve as a the framework and reference guide for that training.

Berkner, K.

1992-08-01T23:59:59.000Z

311

Chemical Hygiene Plan For University of Florida  

E-Print Network [OSTI]

Chemical Hygiene Plan For University of Florida Laboratories This is a site specific Chemical Reviewed August 2007 Revised August 2007 #12;2 I. Introduction This Chemical Hygiene Plan has been with UF laboratory chemical operations and is intended to meet the requirements of the OSHA Laboratory

Slatton, Clint

312

Chemical Hygiene Plan 1.0 Introduction  

E-Print Network [OSTI]

Chemical Hygiene Plan 1.0 Introduction Satisfying Cal-OSHA (Title 8 CCR 5191) and campus regulations, this Chemical Hygiene Plan includes safety information specific to the Center for Nano and Micro chemicals and gasses available. If you have any questions about this Chemical Hygiene Plan, please email

Yoo, S. J. Ben

313

Chemical Inventory | Sample Preparation Laboratories  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation Proposed New Substation SitesStandingtheirCheck In & RegistrationChemicalDropletsChemical

314

Molecular beam studies of reaction dynamics  

SciTech Connect (OSTI)

The major thrust of this research project is to elucidate detailed dynamics of simple elementary reactions that are theoretically important and to unravel the mechanism of complex chemical reactions or photochemical processes that play important roles in many macroscopic processes. Molecular beams of reactants are used to study individual reactive encounters between molecules or to monitor photodissociation events in a collision-free environment. Most of the information is derived from measurement of the product fragment energy, angular, and state distributions. Recent activities are centered on the mechanisms of elementary chemical reactions involving oxygen atoms with unsaturated hydrocarbons, the dynamics of endothermic substitution reactions, the dependence of the chemical reactivity of electronically excited atoms on the alignment of excited orbitals, the primary photochemical processes of polyatomic molecules, intramolecular energy transfer of chemically activated and locally excited molecules, the energetics of free radicals that are important to combustion processes, the infrared-absorption spectra of carbonium ions and hydrated hydronium ions, and bond-selective photodissociation through electric excitation.

Lee, Y.T. [Lawrence Berkeley Laboratory, CA (United States)

1993-12-01T23:59:59.000Z

315

Molecular beam studies of reaction dynamics  

SciTech Connect (OSTI)

The major thrust of this research project is to elucidate detailed dynamics of simple elementary reactions that are theoretically important and to unravel the mechanism of complex chemical reactions or photochemical processes that play important roles in many macroscopic processes. Molecular beams of reactants are used to study individual reactive encounters between molecules or to monitor photodissociation events in a collision-free environment. Most of the information is derived from measurement of the product fragment energy, angular, and state distributions. Recent activities are centered on the mechanisms of elementary chemical reactions involving oxygen atoms with unsaturated hydrocarbons, the dynamics of endothermic substitution reactions, the dependence of the chemical reactivity of electronically excited atoms on the alignment of excited orbitals, the primary photochemical processes of polyatomic molecules, intramolecular energy transfer of chemically activated and locally excited molecules, the energetics of free radicals that are important to combustion processes, the infrared-absorption spectra of carbonium ions and hydrated hydronium ions, and bond-selective photodissociation through electric excitation.

Lee, Yuan T.

1991-03-01T23:59:59.000Z

316

Semiclassical analysis of quantum dynamics  

E-Print Network [OSTI]

Simulating the molecular dynamics (MD) using classical or semi-classical trajectories provides important details for the understanding of many chemical reactions, protein folding, drug design, and solvation effects. MD simulations using trajectories have achieved great successes in the computer simulations of various systems, but it is difficult to incorporate quantum effects in a robust way. Therefore, improving quantum wavepacket dynamics and incorporating nonadiabatic transitions and quantum effects into classical and semi-classical molecular dynamics is critical as well as challenging. In this paper, we present a MD scheme in which a new set of equations of motion (EOM) are proposed to effectively propagate nuclear trajectories while conserving quantum mechanical energy which is critical for describing quantum effects like tunneling. The new quantum EOM is tested on a one-state one-dimensional and a two-state two-dimensional model nonadiabatic systems. The global quantum force experienced by each trajectory promotes energy redistribution among the bundle of trajectories, and thus helps the individual trajectory tunnel through the potential barrier higher than the energy of the trajectory itself. Construction of the new quantum force and EOM also provides a better way to treat the issue of back-reaction in mixed quantum-classical (MQC) methods, i.e. self-consistency between quantum degrees of freedom (DOF) and classical DOF.

Siyang Yang

2011-11-15T23:59:59.000Z

317

Dynamics of inelastic and reactive gas-surface collisions  

SciTech Connect (OSTI)

The dynamics of inelastic and reactive collisions in atomic beam-surface scattering are presented. The inelastic scattering of hyperthermal rare gaseous atoms from three alkali halide surfaces (LiF, NaCl, GI)was studied to understand mechanical energy transfer in unreactive systems. The dynamics of the chemical reaction in the scattering of H(D) atoms from the surfaces of LIF(001) and the basal plane of graphite were also studied.

Smoliar, L.A.

1995-04-01T23:59:59.000Z

318

POISON SPIDER FIELD CHEMICAL FLOOD PROJECT, WYOMING  

SciTech Connect (OSTI)

A reservoir engineering and geologic study concluded that approximate 7,852,000 bbls of target oil exits in Poison Spider. Field pore volume, OOIP, and initial oil saturation are defined. Potential injection water has a total dissolved solids content of 1,275 mg/L with no measurable divalent cations. If the Lakota water consistently has no measurable cations, the injection water does not require softening to dissolve alkali. Produced water total dissolved solids were 2,835 mg/L and less than 20 mg/L hardness as the sum of divalent cations. Produced water requires softening to dissolve chemicals. Softened produced water was used to dissolve chemicals in these evaluations. Crude oil API gravity varies across the field from 19.7 to 22.2 degrees with a dead oil viscosity of 95 to 280 cp at 75 F. Interfacial tension reductions of up to 21,025 fold (0.001 dyne/cm) were developed with fifteen alkaline-surfactant combinations at some alkali concentration. An additional three alkaline-surfactant combinations reduced the interfacial tension greater than 5,000 fold. NaOH generally produced the lowest interfacial tension values. Interfacial tension values of less than 0.021 dyne/cm were maintained when the solutions were diluted with produced water to about 60%. Na{sub 2}CO{sub 3} when mixed with surfactants did not reduce interfacial tension values to levels at which incremental oil can be expected. NaOH without surfactant interfacial tension reduction is at a level where some additional oil might be recovered. Most of the alkaline-surfactant-polymer solutions producing ultra low interfacial tension gave type II- phase behavior. Only two solutions produced type III phase behavior. Produced water dilution resulted in maintenance of phase type for a number of solutions at produced water dilutions exceeding 80% dilution. The average loss of phase type occurred at 80% dilution. Linear corefloods were performed to determine relative permeability end points, chemical-rock compatibility, polymer injectivity, dynamic chemical retention by rock, and recommended injected polymer concentration. Average initial oil saturation was 0.796 Vp. Produced water injection recovered 53% OOIP leaving an average residual oil saturation of 0.375 Vp. Poison Spider rock was strongly water-wet with a mobility ratio for produced water displacing the 280 cp crude oil of 8.6. Core was not sensitive to either alkali or surfactant injection. Injectivity increased 60 to 80% with alkali plus surfactant injection. Low and medium molecular weight polyacrylamide polymers (Flopaam 3330S and Flopaam 3430S) dissolved in either an alkaline-surfactant solution or softened produced water injected and flowed through Poison Spider rock. Recommended injected polyacrylamide concentration is 2,100 mg/L for both polymers for a unit mobility ratio. Radial corefloods were performed to evaluate oil recovery efficiency of different chemical solutions. Waterflood oil recovery averaged 46.4 OOIP and alkaline-surfactant-polymer flood oil recovery averaged an additional 18.1% OIP for a total of 64.6% OOIP. Oil cut change due to injection of a 1.5 wt% Na{sub 2}CO{sub 3} plus 0.05 wt% Petrostep B-100 plus 0.05 wt% Stepantan AS1216 plus 2100 mg/L Flopaam 3430S was from 2% to a peak of 23.5%. Additional study might determine the impact on oil recovery of a lower polymer concentration. An alkaline-surfactant-polymer flood field implementation outline report was written.

Douglas Arnell; Malcolm Pitts; Jie Qi

2004-11-01T23:59:59.000Z

319

Seismic and source characteristics of large chemical explosions. Final report  

SciTech Connect (OSTI)

From the very beginning of its arrangement in 1947, the Institute for Dynamics of the Geospheres RAS (former Special Sector of the Institute for physics of the Earth, RAS) was providing scientific observations of effects of nuclear explosions, as well as large-scale detonations of HE, on environment. This report presents principal results of instrumental observations obtained from various large-scale chemical explosions conducted in the Former-Soviet Union in the period of time from 1957 to 1989. Considering principal aim of the work, tamped and equivalent chemical explosions have been selected with total weights from several hundreds to several thousands ton. In particular, the selected explosions were aimed to study scaling law from excavation explosions, seismic effect of tamped explosions, and for dam construction for hydropower stations and soil melioration. Instrumental data on surface explosions of total weight in the same range aimed to test military technics and special objects are not included.

Adushkin, V.V.; Kostuchenko, V.N.; Pernik, L.M.; Sultanov, D.D.; Zcikanovsky, V.I.

1995-01-01T23:59:59.000Z

320

Qualitative Theory and Chemical Explanation  

E-Print Network [OSTI]

Abstract Roald Hoffmann and other theorists claim that we we ought to use highly idealized chemical models defend Hoffmann's norm for modelling. Many thanks to Michael Friedman, Robin Hendry, Ben Kerr, Deena to thank Roald Hoffmann who has been an in- spiring mentor and who's reflections on the philosophical

Weisberg, Michael

Note: This page contains sample records for the topic "disciplines chemical dynamics" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


321

Biological and Chemical Engineering Building,  

E-Print Network [OSTI]

BioE/ChemE Building West ampus creation enter, Under struction Biological and Chemical Engineering Building, Under Construction Lucile Packard Children's Hospital, Under Construction Arrillaga Sports Center. Eng. Paul G. Allen Building Roble Pool Roble Modulars Godzilla Thornton Center Bambi Roble Gym orsythe

Kay, Mark A.

322

Extended range chemical sensing apparatus  

DOE Patents [OSTI]

An apparatus is described for sensing chemicals over extended range of concentrations. In particular, first and second sensors each having separate, but overlapping ranges for sensing concentrations of hydrogen are provided. Preferably, the first sensor is a MOS solid state device wherein the metal electrode or gate is a nickel alloy. The second sensor is a chemiresistor comprising a nickel alloy. 6 figures.

Hughes, R.C.; Schubert, W.K.

1994-01-18T23:59:59.000Z

323

Direct numerical simulation of a reacting turbulent channel flow with thermo-chemical ablation  

E-Print Network [OSTI]

species; 2) pyrolysis of the composite material resin (series of chemical reactions arising and multicompo- nent physics, multi-phase flow dynamics, thermo-structural mechanics of composite materials attack. Graphite and carbon-carbon composites are widely used because they offer excellent thermo

Nicoud, Franck

324

On line chemical composition of analyzer development. Status report, February 1, 1992--April 30, 1992  

SciTech Connect (OSTI)

This status report details progress made on the development of an on-line chemical analyzer. Dynamic studies of the distillation column, approval of testing plans, installation of a sample cell and raman analyzer, design of computerized control systems are described. Information on seminars and published papers is also included. (GHH)

Not Available

1992-07-01T23:59:59.000Z

325

Nested stochastic simulation algorithms for chemical kinetic systems with multiple time scales  

E-Print Network [OSTI]

Nested stochastic simulation algorithms for chemical kinetic systems with multiple time scales as Gillespie's algorithm. It is in the form of a nested SSA and uses an outer SSA to simulate the slow in the system, derive effective dynamics on the slow time scale, and provide error estimates for the nested SSA

Van Den Eijnden, Eric

326

Chemical Engineering and Chemical Technology 1 Faculty of Engineering, Department of  

E-Print Network [OSTI]

Chemical Engineering and Chemical Technology 1 Faculty of Engineering, Department of --Chemical Engineering and Chemical Technology This publication refers to the session 2009­10. The information given opportunities go to www.imperial.ac.uk/pgprospectus. #12;2 Undergraduate syllabuses Chemical Engineering

327

Chemical Disposal The Office of Environmental Health & Safety operates a Chemical Waste Disposal Program  

E-Print Network [OSTI]

Chemical Disposal Dec, 2011 Chemicals: The Office of Environmental Health & Safety operates a Chemical Waste Disposal Program where all University chemical waste is picked up and sent out for proper disposal. (There are some chemicals that they will not take because of their extreme hazards

Machel, Hans

328

Work Force Discipline--Withdrawn  

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

Withdrawn 4-26-14. Significant changes from the Order include the deletion of material included in other documents such as statutes and Federal regulations. In addition, an updated Table of Penalties now includes Smoking, Cyber Security, Standards of Conduct or other Ethical Violations, and the incorporation of the Travel and Purchase Card Guidance dated January 2003.

2012-04-05T23:59:59.000Z

329

Introductory Computing: The Design Discipline  

E-Print Network [OSTI]

in the context of information systems · Didactics: Systematic problem solving · Didactics: Information and data: the connection · Didactics: Design of abstractions = libraries · Didactics: Libraries for the beginners 2 #12 language context Systematic didactics for program design Connection between information and data Test

Proulx, Viera K.

330

Introductory Computing: The Design Discipline  

E-Print Network [OSTI]

in the context of information systems · Didactics: algebra and programming · Information and data: the connection;6 Simple language context Systematic didactics for program design Connection between information and data with the given (input) data and output data Didactics: Algebra and Programing #12;9 Didactics of the design

Proulx, Viera K.

331

Accelerated molecular dynamics methods  

SciTech Connect (OSTI)

The molecular dynamics method, although extremely powerful for materials simulations, is limited to times scales of roughly one microsecond or less. On longer time scales, dynamical evolution typically consists of infrequent events, which are usually activated processes. This course is focused on understanding infrequent-event dynamics, on methods for characterizing infrequent-event mechanisms and rate constants, and on methods for simulating long time scales in infrequent-event systems, emphasizing the recently developed accelerated molecular dynamics methods (hyperdynamics, parallel replica dynamics, and temperature accelerated dynamics). Some familiarity with basic statistical mechanics and molecular dynamics methods will be assumed.

Perez, Danny [Los Alamos National Laboratory

2011-01-04T23:59:59.000Z

332

CHEMICAL ABUNDANCES IN CLUSTERS OF GALAXIES  

E-Print Network [OSTI]

We study the origin of iron and alpha-elements (O, Mg, Si) in clusters of galaxies. In particular, we discuss the [O/Fe] ratio and the iron mass-to-luminosity ratio in the intracluster medium (ICM) and their link to the chemical and dynamical evolution of elliptical and lenticular galaxies. We adopt a detailed model of galactic evolution incorporating the development of supernovae- driven galactic winds which pollute the ICM with enriched ejecta. We demonstrate \\it quantitatively \\rm the crucial dependence upon the assumed stellar initial mass function in determining the evolution of the mass and abundances ratios of heavy elements in typical model ICMs. We show that completely opposite behaviours of [alpha/Fe] ratios (\\ie positive versus negative ratios) can be obtained by varying the initial mass function without altering the classic assumptions regarding type Ia supernovae progenitors or their nucleosynthesis. Our results indicate that models incorporating somewhat flatter-than-Salpeter initial mass functions (ie x approx 1, as opposed to x=1.35) are preferred, provided the intracluster medium iron mass-to-luminosity ratio, preliminary [alpha/Fe]>0 ASCA results, and present-day type Ia supernovae rates, are to be matched. A simple Virgo cluster simulation which adheres to these constraints shows that approx 70% of the measured ICM iron mass has its origin in type II supernovae, with the remainder being synthesized in type Ia systems.

Francesca Matteucci; Brad K. Gibson

1995-03-14T23:59:59.000Z

333

Chemical & Engineering News Serving the chemical, life sciences and laboratory worlds  

E-Print Network [OSTI]

Chemical & Engineering News Serving the chemical, life sciences and laboratory worlds Awards Home of Catalysis Science & Technology (Probationary). Chemical & Engineering Or Petroleum Chemistry February 1, 2010 Volume 88, Number 5 p. 42 Sponsored by the George A. Olah Endowment

334

Chemical engineers design, control and optimize large-scale chemical, physicochemical and  

E-Print Network [OSTI]

Science, Biochemical, Environmental and Petroleum Engineering. CHEMICAL & MATERIALS SCIENCE CHE OVERVIEW (Environmental) Bachelor of Science 135 units Chemical Engineering (Petroleum) Bachelor of Science 136 units Chemical Engineering (Polymer Science) Bachelor of Science 136 units Petroleum Engineering minor

Rohs, Remo

335

Chemical tracking at the Rocky Flats Plant  

SciTech Connect (OSTI)

EG&G Rocky Flats, Inc., has developed a chemical tracking system to support compliance with the Emergency Planning and community Right-to-Know Act (EPCRA) at the Rocky Flats Plant. This system, referred to as the EPCRA Chemical Control system (ECCS), uses bar code technology to uniquely identify and track the receipt, distribution, and use of chemicals. Chemical inventories are conducted using hand-held electronic scanners to update a site wide chemical database on a VAX 6000 computer. Information from the ECCS supports preparation of the EPCRA Tier II and Form R reports on chemical storage and use.

Costain, D.B.

1994-04-01T23:59:59.000Z

336

Passive in-situ chemical sensor  

DOE Patents [OSTI]

A chemical sensor for assessing a chemical of interest. In typical embodiments the chemical sensor includes a first thermocouple and second thermocouple. A reactive component is typically disposed proximal to the second thermal couple, and is selected to react with the chemical of interest and generate a temperature variation that may be detected by a comparison of a temperature sensed by the second thermocouple compared with a concurrent temperature detected by the first thermocouple. Further disclosed is a method for assessing a chemical of interest and a method for identifying a reaction temperature for a chemical of interest in a system.

Morrell, Jonathan S. (Farragut, TN); Ripley, Edward B. (Knoxville, TN)

2012-02-14T23:59:59.000Z

337

Biotreatment techniques get chemical help  

SciTech Connect (OSTI)

Biological treatment methods for contaminated soils and groundwater, including landfarming, pump-and-treat bioreactors and in situ bioremediation, are using hydrogen peroxide (H[sub 2]O[sub 2]) as an oxidant to reduce cleanup time and save money. Some examples of how the chemical is being used include the following: recent studies indicate peroxygen compounds, such as calcium peroxide, can be used to chemically aerate soils in landfarming applications. Pump-and-treat bioreactor systems for treating halogenated aliphatics can use an H[sub 2]O[sub 2] solution to deliver oxygen to oxygen-deficient systems. The solution has proven effective for improving bioreactor efficiency during limited oxygen solubility; in situ peroxidation can be used to partially oxidize soil contaminants to reduce their toxicity and enhance their biodegradability in the unsaturated zone prior to in situ bioremediation.

Elizardo, K. (Solvay Interox, Houston, TX (United States))

1993-11-01T23:59:59.000Z

338

Olefin recovery via chemical absorption  

SciTech Connect (OSTI)

The recovery of fight olefins in petrochemical plants has generally been accomplished through cryogenic distillation, a process which is very capital and energy intensive. In an effort to simplify the recovery process and reduce its cost, BP Chemicals has developed a chemical absorption technology based on an aqueous silver nitrate solution. Stone & Webster is now marketing, licensing, and engineering the technology. The process is commercially ready for recovering olefins from olefin derivative plant vent gases, such as vents from polyethylene, polypropylene, ethylene oxide, and synthetic ethanol units. The process can also be used to debottleneck C{sub 2} or C{sub 3} splinters, or to improve olefin product purity. This paper presents the olefin recovery imp technology, discusses its applications, and presents economics for the recovery of ethylene and propylene.

Barchas, R. [Stone & Webster Engineering Corporation, Houston, TX (United States)

1998-06-01T23:59:59.000Z

339

Drama in Dynamics: Boom, Splash, and Speed  

SciTech Connect (OSTI)

The full nature of chemistry and physics cannot be captured by static calculations alone. Dynamics calculations allow the simulation of time-dependent phenomena. This facilitates both comparisons with experimental data and the prediction and interpretation of details not easily obtainable from experiments. Simulations thus provide a direct link between theory and experiment, between microscopic details of a system and macroscopic observed properties. Many types of dynamics calculations exist. The most important distinction between the methods and the decision of which method to use can be described in terms of the size and type of molecule/reaction under consideration and the type and level of accuracy required in the final properties of interest. These considerations must be balanced with available computational codes and resources as simulations to mimic ''real-life'' may require many time steps. As indicated in the title, the theme of this thesis is dynamics. The goal is to utilize the best type of dynamics for the system under study while trying to perform dynamics in the most accurate way possible. As a quantum chemist, this involves some level of first principles calculations by default. Very accurate calculations of small molecules and molecular systems are now possible with relatively high-level ab initio quantum chemistry. For example, a quantum chemical potential energy surface (PES) can be developed ''on-the-fly'' with dynamic reaction path (DRP) methods. In this way a classical trajectory is developed without prior knowledge of the PES. In order to treat solvation processes and the condensed phase, large numbers of molecules are required, especially in predicting bulk behavior. The Effective Fragment Potential (EFP) method for solvation decreases the cost of a fully quantum mechanical calculation by dividing a chemical system into an ab initio region that contains the solute and an ''effective fragment'' region that contains the remaining solvent molecules. But, despite the reduced cost relative to fully QM calculations, the EFP method, due to its complex, QM-based potential, does require more computation time than simple interaction potentials, especially when the method is used for large scale molecular dynamics simulations. Thus, the EFP method was parallelized to facilitate these calculations within the quantum chemistry program GAMESS. The EFP method provides relative energies and structures that are in excellent agreement with the analogous fully quantum results for small water clusters. The ability of the method to predict bulk water properties with a comparable accuracy is assessed by performing EFP molecular dynamics simulations. Molecular dynamics simulations can provide properties that are directly comparable with experimental results, for example radial distribution functions. The molecular PES is a fundamental starting point for chemical reaction dynamics. Many methods can be used to obtain a PES; for example, assuming a global functional form for the PES or, as mentioned above, performing ''on-the-fly'' dynamics with Al or semi-empirical calculations at every molecular configuration. But as the size of the system grows, using electronic structure theory to build a PES and, therefore, study reaction dynamics becomes virtually impossible. The program Grow builds a PES as an interpolation of Al data; the goal is to attempt to produce an accurate PES with the smallest number of Al calculations. The Grow-GAMESS interface was developed to obtain the Al data from GAMESS. Classical or quantum dynamics can be performed on the resulting surface. The interface includes the novel capability to build multi-reference PESs; these types of calculations are applicable to problems ranging from atmospheric chemistry to photochemical reaction mechanisms in organic and inorganic chemistry to fundamental biological phenomena such as photosynthesis.

Heather Marie Netzloff

2004-12-19T23:59:59.000Z

340

Chemical logging of geothermal wells  

DOE Patents [OSTI]

The presence of geothermal aquifers can be detected while drilling in geothermal formations by maintaining a chemical log of the ratio of the concentrations of calcium to carbonate and bicarbonate ions in the return drilling fluid. A continuous increase in the ratio of the concentrations of calcium to carbonate and bicarbonate ions is indicative of the existence of a warm or hot geothermal aquifer at some increased depth.

Allen, Charles A. (Idaho Falls, ID); McAtee, Richard E. (Idaho Falls, ID)

1981-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "disciplines chemical dynamics" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


341

Gas-Phase Molecular Dynamics: High Resolution Spectroscopy and Collision Dynamics of Transient Species  

SciTech Connect (OSTI)

This research is carried out as part of the Gas-Phase Molecular Dynamics program in the Chemistry Department at Brookhaven National Laboratory. Chemical intermediates in the elementary gas-phase reactions involved in combustion chemistry are investigated by high resolution spectroscopic tools. Production, reaction, and energy transfer processes are investigated by transient, double resonance, polarization and saturation spectroscopies, with an emphasis on technique development and connection with theory, as well as specific molecular properties.

Hall, G.E.

2011-05-31T23:59:59.000Z

342

Gas-Phase Molecular Dynamics: High Resolution Spectroscopy and Collision Dynamics of Transient Species  

SciTech Connect (OSTI)

This research is carried out as part of the Gas-Phase Molecular Dynamics program in the Chemistry Department at Brookhaven National Laboratory. Chemical intermediates in the elementary gas-phase reactions involved in combustion chemistry are investigated by high resolution spectroscopic tools. Production, reaction, and energy transfer processes are investigated by transient, double resonance, polarization and saturation spectroscopies, with an emphasis on technique development and connection with theory, as well as specific molecular properties.

Hall G. E.; Goncharov, V.

2012-05-29T23:59:59.000Z

343

CHEMICAL ENGINEERING 2014-2016 CATALOG  

E-Print Network [OSTI]

..............................1 CHE 317, Intro to Chemical Engineering Analysis...................3 CH 353, Physical ChemistryCHEMICAL ENGINEERING 2014-2016 CATALOG (catalog valid until August 2022) Suggested Arrangement Semester Semester Hours CH 302, Principles of Chemistry II ...........................................3 CH

Lightsey, Glenn

344

Chemical vapor deposition of functionalized isobenzofuran polymers  

E-Print Network [OSTI]

This thesis develops a platform for deposition of polymer thin films that can be further tailored by chemical surface modification. First, we explore chemical vapor deposition of functionalized isobenzofuran films using ...

Olsson, Ylva Kristina

2007-01-01T23:59:59.000Z

345

Basic Chemical Safety and Laboratory Survival Skills  

E-Print Network [OSTI]

: Reagent bottles, Squirt bottles, spray bottles Label must have name of chemical and hazard information (s handling chemicals Lab coat must cover the wearer to the knees Plastic aprons are allowed only

Gallivan, Martha A.

346

Harvard Department of Chemistry and Chemical Biology  

E-Print Network [OSTI]

Spill Response 14 Hazardous Waste 17 Chemical Handling and Storage 22 Plastic-coated solvent bottles A lightweight, patented plastic laminate that protects against many chemicals. Good dexterity. Taken from

Heller, Eric

347

SPOTLIGHT on: Lindsay Freeman Chemical Engineering (Nanotechnology)  

E-Print Network [OSTI]

SPOTLIGHT on: Lindsay Freeman Chemical Engineering (Nanotechnology) Undergraduate Hometown.D. in chemical engineering with an emphasis in nanotechnology. Lindsay stands out as a very well-balanced student

Wang, Hai

348

Alternative Energy Department of Chemical Engineering  

E-Print Network [OSTI]

Alternative Energy Department of Chemical Engineering Graduate Handbook 2013-2014 Gina Eagan, Graduate Program Coordinator Professor Matthew Yates, Director of Alternative Energy #12;University of Rochester Graduate Handbook Alternative Energy updated August, 2013 Department of Chemical Engineering Page

Mahon, Bradford Z.

349

Alternative Energy Department of Chemical Engineering  

E-Print Network [OSTI]

Alternative Energy Department of Chemical Engineering Graduate Handbook 2014-2015 Victoria Heberling, Graduate Program Coordinator Professor Matthew Yates, Director of Alternative Energy #12;University of Rochester Graduate Handbook Alternative Energy updated August, 2013 Department of Chemical

Cantlon, Jessica F.

350

PHYSICAL OCEANOGRAPHIC, BIOLOGICAL, AND CHEMICAL DATA-  

E-Print Network [OSTI]

PHYSICAL OCEANOGRAPHIC, BIOLOGICAL, AND CHEMICAL DATA- SOUTH ATLANTIC COA- Fish and Wildlife Service, Arnie J. Suomela, Commissioner PHYSICAL OCEANOGRAFHTC, BIOLOGICAL- LIST OF TABLES Table #12;Physical Oceanographic , Biological, and Chemical Data South Atlantic Coast

351

Future scenarios for green chemical supply chains  

E-Print Network [OSTI]

We live in an age where industrial chemicals are central to the modem economy serving as the basis for all man-made fibers, life-science chemicals and consumer products. Owing to globalization, the industry has grown to ...

Arora, Vibhu, M. Eng. Massachusetts Institute of Technology

2013-01-01T23:59:59.000Z

352

Integrated Chemical Geothermometry System for Geothermal Exploration...  

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

geothermal reservoir temperatures from integrated chemical analyses of spring and well fluids. tracersspycherintegratedchemical.pdf More Documents & Publications Integrated...

353

The Mork Family Department of Chemical  

E-Print Network [OSTI]

in automotive and space-related industries to materials used in the biomedical and electronics elds. Chemical

Zhou, Chongwu

354

Integrated Chemical Geothermometry System for Geothermal Exploration  

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

interpretations) * Reduce exploration and development costs Innovation * Numerical optimization of multicomponent chemical geothermometry at multiple locations * Integration with...

355

CHEMICAL SIGNATURES FOR SUPERHEAVY ELEMENTARY PARTICLES  

E-Print Network [OSTI]

searches for technetium, promethium and and expresses hisoccurring technetium, promethium, natural constituents ofany technetium or promethium found by chemical separation

Cahn, Robert N.

2014-01-01T23:59:59.000Z

356

Tariffs with Dynamic Supply Response  

E-Print Network [OSTI]

Giannini FDN iibrary TARIFFS WITH DYNAMIC SUPPLY RESWNSEpaper studies the optimal tariff in a dynamic framework. Thesellers, the optimal tariff is dynam- ically inconsistent;

Karp, Larry

1985-01-01T23:59:59.000Z

357

Chemical Container and Glassware Disposal Policy  

E-Print Network [OSTI]

Chemical Container and Glassware Disposal Policy If a barcoded bottle breaks, remove the barcode or take note of the number after safely cleaning up any chemical release. Provide the number to EH be obtained at Chemstores or Biostores. Grossly contaminated glassware (with chemical residue that can

Jia, Songtao

358

Chemical Innovation in Drug Dr Matthew Fuchter  

E-Print Network [OSTI]

Chemical Innovation in Drug Discovery Dr Matthew Fuchter Lecturer in Synthetic and Medicinal&D Spending and Output #12;Chemical Innovation Impact Discovery Development Basic research: years 0-3 Pre 3, File DRUG Chemical start point Hit to lead Preclinical Assessment Synthetic Chemistry Chemistry

359

Chemical Hygiene Policy Procedure: 6.05  

E-Print Network [OSTI]

Chemical Hygiene Policy Procedure: 6.05 Version: 1.0 Created: 6/15/2013 1 A. Purpose: The Chemical Hygiene policy establishes Columbia University's position for the protection of laboratory workers Chemicals in Laboratories, also referred to as the Laboratory Standard. This policy provides current general

Jia, Songtao

360

Chemical Imaging Initiative Delivering New Capabilities for  

E-Print Network [OSTI]

Chemical Imaging Initiative Delivering New Capabilities for In Situ, Molecular-Scale Imaging A complete, precise and realistic view of chemical, materials and biochemical processes and an understanding sources and mathematical models. At Pacific Northwest National Laboratory, the Chemical Imaging Initiative

Note: This page contains sample records for the topic "disciplines chemical dynamics" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


361

Chemical Evolution of Galaxies: a problem of  

E-Print Network [OSTI]

Chemical Evolution of Galaxies: a problem of Astroarchaelogy Francesca Matteucci, Trieste University Lubljana, February 24, 2014 #12;Chemical Evolution of Galaxies Beatrice Tinsley (27 January 1941- 23 March 1981) She started the field of galactic chemical evolution #12;Collaborators: #12;Outline

¬?umer, Slobodan

362

Chemical Transport Policy Virginia Tech Chemistry Department  

E-Print Network [OSTI]

Chemical Transport Policy Virginia Tech Chemistry Department This policy was enacted. The purpose of this policy is to ensure the safety of personnel transporting chemicals and anyone who might from undue liability. No exceptions to this policy will be tolerated. 2. All chemicals transported

Crawford, T. Daniel

363

CHEMICAL ENGINEERING Fall Term Spring Term  

E-Print Network [OSTI]

CHEMICAL ENGINEERING CURRICULUM FALL 2010 Fall Term Spring Term EGGG 101 Introduction to Chemical Engineering 3 MATH 242 Analytic Geometry & Calculus B 4 MATH 243 Analytic Geometry & Calculus C 4 Critical Reading and Writing 3 Breadth Requirement Elective 1 3 15 17 CHEG 231 Chemical Engineering

Lee, Kelvin H.

364

Chemical Spill Response Procedure Initial Response  

E-Print Network [OSTI]

Chemical Spill Response Procedure Initial Response 1. Advise lab occupants of the spill such as quantity spilled and chemical name. Risk Assessment 3. Conduct an initial risk assessment to determine if to the chemical spill. This link can be found at the bottom of the Campus Security homepage, http

365

CHEMICAL ENGINEERING Fall Term Spring Term  

E-Print Network [OSTI]

CHEG 332 Chemical Engineering Kinetics 3 CHEG 342 Heat and Mass Transfer 3 CHEG 341 Fluid Mechanics 3CHEMICAL ENGINEERING CURRICULUM Fall Term Spring Term EGGG 101 Introduction to Engineering (FYE) 2 CHEG 112 Introduction to Chemical Engineering 3 CHEM 111 General Chemistry 3 CHEM 112 General Chemistry

Lee, Kelvin H.

366

Chemical Storage -Ali T-Raissi, FSEC  

E-Print Network [OSTI]

23(12) 1998) · Reactions are irreversible & by- products needs recycling or disposal #12;Chemical air #12;Chemical Hydrides ­ H2 Generation by Hydrolysis (cont.) · More difficult issue is the controlChemical Storage - Overview Ali T-Raissi, FSEC Hydrogen Storage Workshop Argonne National

367

Chemical Hydrogen Storage Center Center of Excellence  

E-Print Network [OSTI]

alternatives and assess economics and life cycle analysis of borohydride/water to hydrogen · Millennium CellChemical Hydrogen Storage Center Center of Excellence for Chemical Hydrogen Storage William Tumas proprietary or confidential information #12;2 Chemical Hydrogen Storage Center Overview Project Start Date: FY

Carver, Jeffrey C.

368

442013-14 Suggested Course Plan CHEMICAL (PETROLEUM)  

E-Print Network [OSTI]

442013-14 Suggested Course Plan CHEMICAL (PETROLEUM) FIRST YEAR FALL: 18 units SPRING: 18 units. to Chemical Engineering CHE 205: Numerical Methods in Chemical Engineering CHE 330: Chemical Engr: Chemical Reactor Analysis CHE 443: Viscous Flow CHE 444AL: Chemical Engineering Lab CHE 444bL: Chemical

Zhou, Chongwu

369

482012-13SuggestedCoursePlan CHEMICAL (PETROLEUM)  

E-Print Network [OSTI]

482012-13SuggestedCoursePlan CHEMICAL (PETROLEUM) FIRST YEAR FALL: 18 units SPRING: 18 units SECOND. to Chemical Engineering CHE 205: Numerical Methods in Chemical Engineering CHE 330: Chemical Engr: Chemical Reactor Analysis CHE 443: Viscous Flow CHE 444AL: Chemical Engineering Lab CHE 444BL: Chemical

Zhou, Chongwu

370

Essays in dynamic contracting  

E-Print Network [OSTI]

This thesis examines three models of dynamic contracting. The first model is a model of dynamic moral hazard with partially persistent states, and the second model considers relational contracts when the states are partially ...

Kwon, Suehyun

2012-01-01T23:59:59.000Z

371

Dynamics of structural priming†  

E-Print Network [OSTI]

for understanding various aspects of syntactic priming. Cognitive processes are modelled as dynamical systems that can change their behaviour when they process information. We use these dynamical systems to investigate how each episode of language comprehension...

Malhotra, Gaurav

2009-01-01T23:59:59.000Z

372

Categorical Introduction to Dynamical Systems Symbolic Dynamical Systems  

E-Print Network [OSTI]

Categorical Introduction to Dynamical Systems Symbolic Dynamical Systems Symbolic Embedding Examples Results Embeddings in Symbolic Dynamical Systems Jonathan Jaquette Swarthmore College July 22, 2009 Jonathan Jaquette Embeddings in Symbolic Dynamical Systems #12;Categorical Introduction

Kahng, Byung-Jay

373

Dynamics of Carroll Particles  

E-Print Network [OSTI]

We investigate particles whose dynamics is invariant under the Carroll group. Although a single free such Carroll particle has no non-trivial dynamics (`the Carroll particle does not move') we show that there exists non-trivial dynamics for a set of interacting Carroll particles. Furthermore, we gauge the Carroll algebra and couple the Carroll particle to these gauge fields. It turns out that for such a coupled system even a single Carroll particle can have non-trivial dynamics.

Eric Bergshoeff; Joaquim Gomis; Giorgio Longhi

2014-05-31T23:59:59.000Z

374

Chemically assisted in situ recovery of oil shale  

SciTech Connect (OSTI)

The purpose of the research project was to investigate the feasibility of the chemically assisted in situ retort method for recovering shale oil from Colorado oil shale. The chemically assisted in situ procedure uses hydrogen chloride (HCl), steam (H{sub 2}O), and carbon dioxide (CO{sub 2}) at moderate pressure to recovery shale oil from Colorado oil shale at temperatures substantially lower than those required for the thermal decomposition of kerogen. The process had been previously examined under static, reaction-equilibrium conditions, and had been shown to achieve significant shale oil recoveries from powdered oil shale. The purpose of this research project was to determine if these results were applicable to a dynamic experiment, and achieve penetration into and recovery of shale oil from solid oil shale. Much was learned about how to perform these experiments. Corrosion, chemical stability, and temperature stability problems were discovered and overcome. Engineering and design problems were discovered and overcome. High recovery (90% of estimated Fischer Assay) was observed in one experiment. Significant recovery (30% of estimated Fischer Assay) was also observed in another experiment. Minor amounts of freed organics were observed in two more experiments. Penetration and breakthrough of solid cores was observed in six experiments.

Ramierz, W.F.

1993-12-31T23:59:59.000Z

375

Intramolecular and nonlinear dynamics  

SciTech Connect (OSTI)

Research in this program focuses on three interconnected areas. The first involves the study of intramolecular dynamics, particularly of highly excited systems. The second area involves the use of nonlinear dynamics as a tool for the study of molecular dynamics and complex kinetics. The third area is the study of the classical/quantum correspondence for highly excited systems, particularly systems exhibiting classical chaos.

Davis, M.J. [Argonne National Laboratory, IL (United States)

1993-12-01T23:59:59.000Z

376

Dynamics of Anisotropic Universes  

E-Print Network [OSTI]

We present a general study of the dynamical properties of Anisotropic Bianchi Universes in the context of Einstein General Relativity. Integrability results using Kovalevskaya exponents are reported and connected to general knowledge about Bianchi dynamics. Finally, dynamics toward singularity in Bianchi type VIII and IX universes are showed to be equivalent in some precise sence.

Jerome Perez

2006-03-30T23:59:59.000Z

377

Atmospheric Dynamics II Instructor  

E-Print Network [OSTI]

AT602 Atmospheric Dynamics II 2 credits Instructor: David W. J. Thompson davet: An Introduction to Dynamic Meteorology, 5th Edition, Academic Press (recommended) · Marshall, J., and Plumb, R. A., 2008: Atmosphere, Ocean, and Climate Dynamics: An Introductory Text, Academic Press. · Vallis, G. K

378

Chemical Hygiene Plan The purpose of the Chemical Hygiene Plan (CHP) is to outline laboratory work  

E-Print Network [OSTI]

Chemical Hygiene Plan I. Policy The purpose of the Chemical Hygiene Plan (CHP) is to outline community are protected from health hazards associated with chemicals with which they work. II. Authority The Chemical Hygiene Plan, required to comply with provisions of CCR Title 8 §5191 et al: A. Standard Operating

de Lijser, Peter

379

IS CHEMICAL INDEX OF ALTERATION (CIA) A RELIABLE PROXY FOR CHEMICAL WEATHERING IN GLOBAL DRAINAGE BASINS?  

E-Print Network [OSTI]

IS CHEMICAL INDEX OF ALTERATION (CIA) A RELIABLE PROXY FOR CHEMICAL WEATHERING IN GLOBAL DRAINAGE Road, Shanghai 200092 China; Tel: 86-21-6598 9130; Fax: 86-21-6598 6278 ABSTRACT. The chemical as the most important carrier of terrigenous materials into the sea. The chemical index of alteration (CIA

Yang, Shouye

380

Chemical enterprise model and decision-making framework for sustainable chemical product design  

E-Print Network [OSTI]

Chemical enterprise model and decision-making framework for sustainable chemical product design, LGC (Laboratoire de Ge¬īnie Chimique), F-31432 Toulouse Cedex 04, France 1. Introduction The chemical often strongly impact the environment and people's health and safety. Indeed chemical industries

Paris-Sud XI, Université de

Note: This page contains sample records for the topic "disciplines chemical dynamics" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


381

Chemical Master versus Chemical Langevin for First-Order Reaction Networks  

E-Print Network [OSTI]

Chemical Master versus Chemical Langevin for First-Order Reaction Networks Desmond J. Higham Raya in computational cell biology, and in this case, the interactions are typically first-order. The Chemical Langevin effectively. In this work, we obtain expressions for the first and second moments of the Chemical Langevin

Mottram, Nigel

382

Chemical kinetics and combustion modeling  

SciTech Connect (OSTI)

The goal of this program is to gain qualitative insight into how pollutants are formed in combustion systems and to develop quantitative mathematical models to predict their formation rates. The approach is an integrated one, combining low-pressure flame experiments, chemical kinetics modeling, theory, and kinetics experiments to gain as clear a picture as possible of the process in question. These efforts are focused on problems involved with the nitrogen chemistry of combustion systems and on the formation of soot and PAH in flames.

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

1993-12-01T23:59:59.000Z

383

Microcomponent chemical process sheet architecture  

DOE Patents [OSTI]

The invention is a microcomponent sheet architecture wherein macroscale unit processes are performed by microscale components. The sheet architecture may be a single laminate with a plurality of separate microcomponent sections or the sheet architecture may be a plurality of laminates with one or more microcomponent sections on each laminate. Each microcomponent or plurality of like microcomponents perform at least one chemical process unit operation. A first laminate having a plurality of like first microcomponents is combined with at least a second laminate having a plurality of like second microcomponents thereby combining at least two unit operations to achieve a system operation. 26 figs.

Wegeng, R.S.; Drost, M.K.; Call, C.J.; Birmingham, J.G.; McDonald, C.E.; Kurath, D.E.; Friedrich, M.

1998-09-22T23:59:59.000Z

384

Microcomponent chemical process sheet architecture  

DOE Patents [OSTI]

The invention is a microcomponent sheet architecture wherein macroscale unit processes are performed by microscale components. The sheet architecture may be a single laminate with a plurality of separate microcomponent sections or the sheet architecture may be a plurality of laminates with one or more microcomponent sections on each laminate. Each microcomponent or plurality of like microcomponents perform at least one chemical process unit operation. A first laminate having a plurality of like first microcomponents is combined with at least a second laminate having a plurality of like second microcomponents thereby combining at least two unit operations to achieve a system operation.

Wegeng, Robert S. (Richland, WA); Drost, M. Kevin (Richland, WA); Call, Charles J. (Pasco, WA); Birmingham, Joseph G. (Richland, WA); McDonald, Carolyn Evans (Richland, WA); Kurath, Dean E. (Benton County, WA); Friedrich, Michele (Prosser, WA)

1998-01-01T23:59:59.000Z

385

Overview of chemical vapor infiltration  

SciTech Connect (OSTI)

Chemical vapor infiltration (CVI) is developing into a commercially important method for the fabrication of continuous filament ceramic composites. Current efforts are focused on the development of an improved understanding of the various processes in CVI and its modeling. New approaches to CVI are being explored, including pressure pulse infiltration and microwave heating. Material development is also proceeding with emphasis on improving the oxidation resistance of the interfacial layer between the fiber and matrix. This paper briefly reviews these subjects, indicating the current state of the science and technology.

Besmann, T.M.; Stinton, D.P.; Lowden, R.A.

1993-06-01T23:59:59.000Z

386

Chemical Engineering | More Science | ORNL  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc DocumentationP-Series to User Group and Userof a blast-resistant navalChemCam laser Chemical and

387

Chemical Resources | Sample Preparation Laboratories  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc DocumentationP-Series to User Group and Userof a blast-resistant navalChemCam laser Chemical

388

Chemical Physics | The Ames Laboratory  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation Proposed New Substation SitesStandingtheirCheck In &Chemical Label Information

389

Dissection of Plant Defense Mechanisms Using Chemical and Molecular Genomics  

E-Print Network [OSTI]

of auxins by a chemical genomics approach." Journal ofadvances in chemical genomics." Current Medicinal Chemistrymolecular and chemical genomics." Phytopathology 97(7): S58-

Rodriguez-Salus, Melinda Sue

2012-01-01T23:59:59.000Z

390

Chemical Hygiene Planh UNIVERSITY OF AlASKA  

E-Print Network [OSTI]

Chemical Hygiene Planh · UNIVERSITY OF AlASKA · · FAIRBANKS INTRODUCTION.....................................................................................................3 C Chemical Hygiene Officer (CHO........................................................................................................ 8 F Reactive Chemicals

Hartman, Chris

391

CRAD, Chemical Management Implementation - June 30, 2011 | Department...  

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

Chemical Management Implementation - June 30, 2011 CRAD, Chemical Management Implementation - June 30, 2011 June 30, 2011 Chemical Management Implementation Inspection Criteria,...

392

Hierarchical Network Structure Promotes Dynamical Robustness  

E-Print Network [OSTI]

The analysis of dynamical systems that attempts to model chemical reaction, gene-regulatory, population, and ecosystem networks all rely on models having interacting components. When the details of these interactions are unknown for biological systems of interest, one effective approach is to study the dynamical properties of an ensemble of models determined by evolutionary constraints that may apply to all such systems. One such constraint is that of dynamical robustness. Despite previous investigations, the relationship between dynamical robustness-an important functional characteristic of many biological systems-and network structure is poorly understood. Here we analyze the stability and robustness of a large class of dynamical systems and demonstrate that the most hierarchical network structures, those equivalent to the total ordering, are the most robust. In particular, we determine the probability distribution of robustness over system connectivity and show that robustness is maximized by maximizing the number of links between strongly connected components of the graph representing the underlying system connectivity. We demonstrate that this can be understood in terms of the fact that permutation of strongly connected components is a fundamental symmetry of dynamical robustness, which applies to networks of any number of components and is independent of the distribution from which the strengths of interconnection among components are sampled. The classification of dynamical robustness based upon a purely topological property provides a fundamental organizing principle that can be used in the context of experimental validation to select among models that break or preserve network hierarchy. This result contributes to an explanation for the observation of hierarchical modularity in biological networks at all scales.

Cameron Smith; Raymond S. Puzio; Aviv Bergman

2014-12-01T23:59:59.000Z

393

Helium in Chemically Peculiar Stars  

E-Print Network [OSTI]

For the purpose of deriving the helium abundances in chemically peculiar stars, the importance of assuming a correct helium abundance has been investigated for determining the effective temperature and gravity of main sequence B-type stars, making full use of the present capability of reproducing their helium lines. Even if the flux distribution of main sequence B-type stars appears to depend only on the effective temperature for any helium abundance, the effective temperature, gravity and helium abundance have to be determined simultaneously by matching the Balmer line profiles. New MULTI NLTE calculations, performed adopting ATLAS9 model atmospheres and updated helium atomic parameters, reproduce most of the observed equivalent widths of neutral helium lines for main sequence B-type stars and they make us confident of the possibility to correctly derive the helium abundance in chemically peculiar stars. An application of previous methods to the helium rich star HD 37017 shows that helium could be stratified in the magnetic pole regions, as expected in the framework of the diffusion theory in the presence of mass loss.

F. Leone

1998-05-05T23:59:59.000Z

394

Chemical heat pump and chemical energy storage system  

DOE Patents [OSTI]

A chemical heat pump and storage system employs sulfuric acid and water. In one form, the system includes a generator and condenser, an evaporator and absorber, aqueous acid solution storage and water storage. During a charging cycle, heat is provided to the generator from a heat source to concentrate the acid solution while heat is removed from the condenser to condense the water vapor produced in the generator. Water is then stored in the storage tank. Heat is thus stored in the form of chemical energy in the concentrated acid. The heat removed from the water vapor can be supplied to a heat load of proper temperature or can be rejected. During a discharge cycle, water in the evaporator is supplied with heat to generate water vapor, which is transmitted to the absorber where it is condensed and absorbed into the concentrated acid. Both heats of dilution and condensation of water are removed from the thus diluted acid. During the discharge cycle the system functions as a heat pump in which heat is added to the system at a low temperature and removed from the system at a high temperature. The diluted acid is stored in an acid storage tank or is routed directly to the generator for reconcentration. The generator, condenser, evaporator, and absorber all are operated under pressure conditions specified by the desired temperature levels for a given application. The storage tanks, however, can be maintained at or near ambient pressure conditions. In another form, the heat pump system is employed to provide usable heat from waste process heat by upgrading the temperature of the waste heat.

Clark, Edward C. (Woodinville, WA); Huxtable, Douglas D. (Bothell, WA)

1985-08-06T23:59:59.000Z

395

Dynamical friction in modified Newtonian dynamics  

E-Print Network [OSTI]

We have tested a previous analytical estimate of the dynamical friction timescale in Modified Newtonian Dynamics (MOND) with fully non-linear N-body simulations. The simulations confirm that the dynamical friction timescale is significantly shorter in MOND than in equivalent Newtonian systems, i.e. systems with the same phase-space distribution of baryons and additional dark matter. An apparent conflict between this result and the long timescales determined for bars to slow and mergers to be completed in previous N-body simulations of MOND systems is explained. The confirmation of the short dynamical-friction timescale in MOND underlines the challenge that the Fornax dwarf spheroidal poses to the viability of MOND.

C. Nipoti; L. Ciotti; J. Binney; P. Londrillo

2008-03-31T23:59:59.000Z

396

Dynamic Response Optimization of Complex Multibody Systems in a Penalty Formulation using Adjoint Sensitivity  

E-Print Network [OSTI]

Multibody dynamics simulations are currently widely accepted as valuable means for dynamic performance analysis of mechanical systems. The evolution of theoretical and computational aspects of the multibody dynamics discipline make it conducive these days for other types of applications, in addition to pure simulations. One very important such application is design optimization. A very important first step towards design optimization is sensitivity analysis of multibody system dynamics. Dynamic sensitivities are often calculated by means of finite differences. Depending of the number of parameters involved, this procedure can be computationally expensive. Moreover, in many cases, the results suffer from low accuracy when real perturbations are used. The main contribution to the state-of-the-art brought by this study is the development of the adjoint sensitivity approach of multibody systems in the context of the penalty formulation. The theory developed is demonstrated on one academic case study, a five-bar mechanism, and on one real-life system, a 14-DOF vehicle model. The five-bar mechanism is used to illustrate the sensitivity approach derived in this paper. The full vehicle model is used to demonstrate the capability of the new approach developed to perform sensitivity analysis and gradient-based optimization for large and complex multibody systems with respect to multiple design parameters.

Yitao Zhu; Daniel Dopico; Corina Sandu; Adrian Sandu

2014-10-30T23:59:59.000Z

397

Chemical Science and Technology Laboratory Page 1 Technical Activities Report  

E-Print Network [OSTI]

Chemical Science and Technology Laboratory Page 1 Technical Activities Report Physical & Chemical Properties Division TABLE OF CONTENTS I. PHYSICAL & CHEMICAL PROPERTIES DIVISION (838.................................................................................................9 1. The NIST WebBook: NIST Chemical Reference Data for Industry

Magee, Joseph W.

398

DEPARTMENT OF CHEMICAL & PETROLEUM ENGINEERING UNIVERSITY OF CALGARY  

E-Print Network [OSTI]

DEPARTMENT OF CHEMICAL & PETROLEUM ENGINEERING UNIVERSITY OF CALGARY SCHULICH.UCALGARY.CA/CHEMICAL/ (403) 220-5751 Department Of Chemical & Petroleum Engineering ZANDMER DISTINGUISHED LECTURE SERIES 2014 Lecture Series in Chemical & Petroleum Engineering is designed to attract internationally renowned

Sinnamon, Gordon J.

399

Undergraduate Bulletin 2014-15 Energy, Environmental and Chemical Engineering  

E-Print Network [OSTI]

Undergraduate Bulletin 2014-15 Energy, Environmental and Chemical Engineering (09/02/14) 1 Energy, Environmental and Chemical Engineering About Energy, Environmental and Chemical Engineering Our department focuses on environmental engineering, energy systems engineering and chemical engineering. We provide

Subramanian, Venkat

400

CHEMKIN-III: A FORTRAN chemical kinetics package for the analysis of gas-phase chemical and plasma kinetics  

SciTech Connect (OSTI)

This document is the user`s manual for the third-generation CHEMKIN package. CHEMKIN is a software package whose purpose is to facilitate the formation, solution, and interpretation of problems involving elementary gas-phase chemical kinetics. It provides a flexible and powerful tool for incorporating complex chemical kinetics into simulations of fluid dynamics. The package consists of two major software components: an Interpreter and a Gas-Phase Subroutine Library. The Interpreter is a program that reads a symbolic description of an elementary, user-specified chemical reaction mechanism. One output from the Interpreter is a data file that forms a link to the Gas-Phase Subroutine Library. This library is a collection of about 100 highly modular FORTRAN subroutines that may be called to return information on equations of state, thermodynamic properties, and chemical production rates. CHEMKIN-III includes capabilities for treating multi-fluid plasma systems, that are not in thermal equilibrium. These new capabilities allow researchers to describe chemistry systems that are characterized by more than one temperature, in which reactions may depend on temperatures associated with different species; i.e. reactions may be driven by collisions with electrons, ions, or charge-neutral species. These new features have been implemented in such a way as to require little or no changes to CHEMKIN implementation for systems in thermal equilibrium, where all species share the same gas temperature. CHEMKIN-III now has the capability to handle weakly ionized plasma chemistry, especially for application related to advanced semiconductor processing.

Kee, R.J.; Rupley, F.M.; Meeks, E.; Miller, J.A.

1996-05-01T23:59:59.000Z

Note: This page contains sample records for the topic "disciplines chemical dynamics" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


401

Vertical flow chemical detection portal  

DOE Patents [OSTI]

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

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

1999-06-22T23:59:59.000Z

402

Chemically assisted mechanical refrigeration process  

DOE Patents [OSTI]

There is provided a chemically assisted mechanical refrigeration process including the steps of: mechanically compressing a refrigerant stream which includes vaporized refrigerant; contacting the refrigerant with a solvent in a mixer at a pressure sufficient to promote substantial dissolving of the refrigerant in the solvent in the mixer to form a refrigerant-solvent solution while concurrently placing the solution in heat exchange relation with a working medium to transfer energy to the working medium, said refrigerant-solvent solution exhibiting a negative deviation from Raoult's Law; reducing the pressure over the refrigerant-solvent solution in an evaporator to allow the refrigerant to vaporize and substantially separate from the solvent while concurrently placing the evolving refrigerant-solvent solution in heat exchange relation with a working medium to remove energy from the working medium to thereby form a refrigerant stream and a solvent stream; and passing the solvent and refrigerant stream from the evaporator. 5 figs.

Vobach, A.R.

1987-11-24T23:59:59.000Z

403

Chemically assisted mechanical refrigeration process  

DOE Patents [OSTI]

There is provided a chemically assisted mechanical refrigeration process including the steps of: mechanically compressing a refrigerant stream which includes vaporized refrigerant; contacting the refrigerant with a solvent in a mixer at a pressure sufficient to promote substantial dissolving of the refrigerant in the solvent in the mixer to form a refrigerant-solvent solution while concurrently placing the solution in heat exchange relation with a working medium to transfer energy to the working medium, said refrigerant-solvent solution exhibiting a negative deviation from Raoult's Law; reducing the pressure over the refrigerant-solvent solution in an evaporator to allow the refrigerant to vaporize and substantially separate from the solvent while concurrently placing the evolving refrigerant-solvent solution in heat exchange relation with a working medium to remove energy from the working medium to thereby form a refrigerant stream and a solvent stream; and passing the solvent and refrigerant stream from the evaporator. 5 figs.

Vobach, A.R.

1987-06-23T23:59:59.000Z

404

Chemical microreactor and method thereof  

DOE Patents [OSTI]

A chemical microreactor suitable for generation of hydrogen fuel from liquid sources such as ammonia, methanol, and butane through steam reforming processes when mixed with an appropriate amount of water contains capillary microchannels with integrated resistive heaters to facilitate the occurrence of catalytic steam reforming reactions. One such microreactor employs a packed catalyst capillary microchannel and at least one porous membrane. Another employs a porous membrane with a large surface area or a porous membrane support structure containing a plurality of porous membranes having a large surface area in the aggregate, i.e., greater than about 1 m.sup.2 /cm.sup.3. The packed catalyst capillary microchannels, porous membranes and porous membrane support structures may be formed by a variety of methods.

Morse, Jeffrey D.; Jankowski, Alan

2005-11-01T23:59:59.000Z

405

Electrostatic thin film chemical and biological sensor  

DOE Patents [OSTI]

A chemical and biological agent sensor includes an electrostatic thin film supported by a substrate. The film includes an electrostatic charged surface to attract predetermined biological and chemical agents of interest. A charge collector associated with said electrostatic thin film collects charge associated with surface defects in the electrostatic film induced by the predetermined biological and chemical agents of interest. A preferred sensing system includes a charge based deep level transient spectroscopy system to read out charges from the film and match responses to data sets regarding the agents of interest. A method for sensing biological and chemical agents includes providing a thin sensing film having a predetermined electrostatic charge. The film is exposed to an environment suspected of containing the biological and chemical agents. Quantum surface effects on the film are measured. Biological and/or chemical agents can be detected, identified and quantified based on the measured quantum surface effects.

Prelas, Mark A. (Columbia, MO); Ghosh, Tushar K. (Columbia, MO); Tompson, Jr., Robert V. (Columbia, MO); Viswanath, Dabir (Columbia, MO); Loyalka, Sudarshan K. (Columbia, MO)

2010-01-19T23:59:59.000Z

406

UCR Chemical Hygiene Plan, ver 2012.09.10 page 1 of 55 UCR Chemistry Department Chemical Hygiene Plan  

E-Print Network [OSTI]

UCR Chemical Hygiene Plan, ver 2012.09.10 page 1 of 55 UCR Chemistry Department Chemical Hygiene Plan UCR CHEMISTRY DEPARTMENT CHEMICAL HYGIENE PLAN.................................... 4 Responsibilities of All Personnel Who Handle Hazardous Chemicals

Reed, Christopher A.

407

The Chemical Composition of Some Texas Soils.  

E-Print Network [OSTI]

TEXAS AGRICULTURAL ESPERlMENT STATIONS. ______-_________- _-__---- - -. - _ _._ __ BULLETlN NO. 100. Chemical Section, Dec., 1907. The Chemical Composition of Some Texas Soils BY G. S. FRAPS, 'Ph. D., Chemist. POSTOFFICE COLLEGE STATION.... The postoffice address is College, Station, Texas. Reports and bulletins are sent free upon application to the Director. THE CHEMICAL COMPOSITION OF SOME TEXAS SOILS. BY G. S. FRAPS. This bulletin is a popular account of a study of a nnmber of Texas soils...

Fraps, G. S. (George Stronach)

1907-01-01T23:59:59.000Z

408

Microbend fiber-optic chemical sensor  

DOE Patents [OSTI]

A microbend fiber-optic chemical sensor for detecting chemicals in a sample, and a method for its use, is disclosed. The sensor comprises at least one optical fiber having a microbend section (a section of small undulations in its axis), for transmitting and receiving light. In transmission, light guided through the microbend section scatters out of the fiber core and interacts, either directly or indirectly, with the chemical in the sample, inducing fluorescence radiation. Fluorescence radiation is scattered back into the microbend section and returned to an optical detector for determining characteristics of the fluorescence radiation quantifying the presence of a specific chemical.

Weiss, Jonathan D. (Albuquerque, NM)

2002-01-01T23:59:59.000Z

409

Chemical Kinetic Research on HCCI & Diesel Fuels  

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

improved gasoline surrogate fuels for HCCI engines * Development of very efficient software to reduce the size of detailed chemical kinetic models for transportation fuels...

410

Methods and compounds for chemical ligation  

DOE Patents [OSTI]

Compositions and methods for chemical ligation are provided. Methods for nucleic acid sequencing, nucleic acid assembly and nucleic acid synthesis are also provided.

Church, George M.; Sismour, A. Michael

2013-07-09T23:59:59.000Z

411

ORISE: Chemical Stockpile Emergency Preparedness Program Exercise...  

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

Chemical Stockpile Emergency Preparedness Program Exercise Training and Analysis Tool Training Tool Improves Information Sharing Between CSEPP and its Response Partners In 2006,...

412

Rejuvenating Permeable Reactive Barriers by Chemical Flushing  

Broader source: Energy.gov [DOE]

Final Report:Rejuvenating Permeable Reactive Barriers by Chemical Flushing,U.S. Environmental Protection Agency, Region 8 Support.August 2004

413

Chemical and Microstructural Effects in Electrode Polarization  

SciTech Connect (OSTI)

This presentation discusses the chemical and microstructural effects in electrode polarization and a relative comparison of contributions of the various polarizations in anode-supported cells.

Virkar, A.; Armstrong, T.; Radhakrishman, R.; Ramanan, G.; Zhao, F.; Singhal, S.

2005-01-28T23:59:59.000Z

414

Chemically stabilized ionomers containing inorganic fillers  

DOE Patents [OSTI]

Ionomeric polymers that are chemically stabilized and contain inorganic fillers are prepared, and show reduced degradation. The ionomers care useful in membranes and electrochemical cells.

Roelofs, Mark Gerrit

2013-12-31T23:59:59.000Z

415

BASF The Chemical Company Dr. Franca Tiarks  

E-Print Network [OSTI]

's segments Chemicals Plastics Performance Products Functional Solutions Agricultural Solutions Oil & Gas Multifunctional seat Infrared-reflective coating Infrared-reflective film High-performance foams Lightweight

Schöne, Bernd R.

416

Integrated Chemical Geothermometry System for Geothermal Exploration  

Broader source: Energy.gov [DOE]

DOE Geothermal Peer Review 2010 - Presentation. Develop practical and reliable system to predict geothermal reservoir temperatures from integrated chemical analyses of spring and well fluids.

417

Chemical Characterization of Individual Particles and Residuals...  

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

Individual Particles and Residuals of Cloud Droplets and Ice Crystals Collected On Board Research Chemical Characterization of Individual Particles and Residuals of Cloud Droplets...

418

Northwest National Laboratory's Chemical Imaging Initiative is...  

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

of chemicals and radionuclides underground or precipitation reactions that influence the sequestration of carbon. To study biofilms, researchers must first obtain detailed...

419

Chemical Magnetism Shouheng Sun, Chairman Semiconductivity,  

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

Chemical Magnetism Shouheng Sun, Chairman Semiconductivity, spin delocalization, and excited states of the single molecule magnets Fe 8 Br 8 and Mn 12 -acetate "invited... D....

420

Nanoindentation Under Dynamic Conditions  

E-Print Network [OSTI]

............................................................................................ 98† 6.3.1† Data Analysis ........................................................................................... 99† 6.3.2† Dynamic Compliance ............................................................................. 103† 6.3.3† Strain Rates...

Wheeler, Jeffrey M

2009-05-22T23:59:59.000Z

Note: This page contains sample records for the topic "disciplines chemical dynamics" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


421

Shape Dynamics. An Introduction  

E-Print Network [OSTI]

Shape dynamics is a completely background-independent universal framework of dynamical theories from which all absolute elements have been eliminated. For particles, only the variables that describe the shapes of the instantaneous particle configurations are dynamical. In the case of Riemannian three-geometries, the only dynamical variables are the parts of the metric that determine angles. The local scale factor plays no role. This leads to a shape-dynamic theory of gravity in which the four-dimensional diffeomorphism invariance of general relativity is replaced by three-dimensional diffeomorphism invariance and three-dimensional conformal invariance. Despite this difference of symmetry groups, it is remarkable that the predictions of the two theories -- shape dynamics and general relativity -- agree on spacetime foliations by hypersurfaces of constant mean extrinsic curvature. However, the two theories are distinct, with shape dynamics having a much more restrictive set of solutions. There are indications that the symmetry group of shape dynamics makes it more amenable to quantization and thus to the creation of quantum gravity. This introduction presents in simple terms the arguments for shape dynamics, its implementation techniques, and a survey of existing results.

Julian Barbour

2011-05-01T23:59:59.000Z

422

THE JOURNAL OF CHEMICAL PHYSICS 140, 204905 (2014) Precursory signatures of protein folding/unfolding: From time series  

E-Print Network [OSTI]

THE JOURNAL OF CHEMICAL PHYSICS 140, 204905 (2014) Precursory signatures of protein folding conformation. The present study looks for precursory signatures of protein folding/unfolding within these rapid the important role played by weaker correlations in such protein folding dynamics. © 2014 AIP Publishing LLC

423

Developing and Integrating Sustainable Chemical Processes into Existing Petro-Chemical Plant Complexes  

E-Print Network [OSTI]

Developing and Integrating Sustainable Chemical Processes into Existing Petro-Chemical Plant Complexes #12;Outline ∑ Introduction to Sustainable Development ∑ Research Vision ∑ Biomass conversion of biotechnology in existing plant complex ∑ Conclusions #12;Sustainability Sustainability refers to integrating

Pike, Ralph W.

424

CH E 2421 Chemical Engineering Thermodynamics I CH E 3322 Chemical Engineering Thermodynamics II  

E-Print Network [OSTI]

Physics PHYS 4312 Nuclear and Particle Physics Other Engineering Electives #12;CH E 2421 Chemical Engineering Thermodynamics I CH E 3322 Chemical Engineering Thermodynamics II CH E 3330 Engineering Materials Science CH E 4342 Polymer Physics

Zhang, Yuanlin

425

Development of Computational Approaches for Simulation and Advanced Controls for Hybrid Combustion-Gasification Chemical Looping  

SciTech Connect (OSTI)

This document provides the results of the project through September 2009. The Phase I project has recently been extended from September 2009 to March 2011. The project extension will begin work on Chemical Looping (CL) Prototype modeling and advanced control design exploration in preparation for a scale-up phase. The results to date include: successful development of dual loop chemical looping process models and dynamic simulation software tools, development and test of several advanced control concepts and applications for Chemical Looping transport control and investigation of several sensor concepts and establishment of two feasible sensor candidates recommended for further prototype development and controls integration. There are three sections in this summary and conclusions. Section 1 presents the project scope and objectives. Section 2 highlights the detailed accomplishments by project task area. Section 3 provides conclusions to date and recommendations for future work.

Joshi, Abhinaya; Lou, Xinsheng; Neuschaefer, Carl; Chaudry, Majid; Quinn, Joseph

2012-07-31T23:59:59.000Z

426

Chemical & Engineering News Serving the chemical, life sciences and laboratory worlds  

E-Print Network [OSTI]

fail. Fostering Creativity | Cover Story | Chemical & Engineering News httpChemical & Engineering News Serving the chemical, life sciences and laboratory worlds Cover Story Home ¬Ľ March 22, 2010 Issue ¬Ľ Cover Story ¬Ľ Bubbling With Enthusiasm ¬Ľ Fostering Creativity March 22

Zare, Richard N.

427

Using chemical tracers in hillslope soils to estimate the importance of chemical denudation under  

E-Print Network [OSTI]

also examine relationships between transient mechanical and chemical denudation rates. Soil particle, burrowing by mammals, or freeze-thaw mechanisms [e.g., see Birkeland, 1999]. Once created, mobile soilUsing chemical tracers in hillslope soils to estimate the importance of chemical denudation under

428

Department of Chemical and Biochemical Engineering Institute for Chemicals and Fuels from Alternative Resources  

E-Print Network [OSTI]

. The successful candidate will be an important member of the Institute for Chemicals and Fuels from AlternativeDepartment of Chemical and Biochemical Engineering Institute for Chemicals and Fuels from Alternative Resources The University of Western Ontario Applications are invited for a junior faculty position

Sinnamon, Gordon J.

429

Nuclear Chemical EngineeringNuclear Chemical Engineering (Prof. Mikael Nilsson)(Prof. Mikael Nilsson)  

E-Print Network [OSTI]

Nuclear Chemical EngineeringNuclear Chemical Engineering (Prof. Mikael Nilsson)(Prof. Mikael in nuclear engineering. Current work involves validation of computer codes for composition and toxicity for future nuclear waste reprocessing. Projects include new methods and chemicals used in solvent extraction

Mease, Kenneth D.

430

Nuclear Chemical EngineeringNuclear Chemical Engineering (Prof.(Prof. MikaelMikael Nilsson)Nilsson)  

E-Print Network [OSTI]

Nuclear Chemical EngineeringNuclear Chemical Engineering (Prof.(Prof. MikaelMikael Nilsson in nuclear engineering. Current work involves validation of computer codes for composition and toxicity for future nuclear waste reprocessing. Projects include new methods and chemicals used in solvent extraction

Mease, Kenneth D.

431

GULF OF MEXICO PHYSICAL AND CHEMICAL DATA  

E-Print Network [OSTI]

-^ ^ / GULF OF MEXICO PHYSICAL AND CHEMICAL DATA FROM ALASKA CRUISES Marine Biological Laboratory, Commissioner GULF OF MEXICO PHYSICAL AND CHEMICAL DATA FROM ALASKA CRUISES Compiled by Albert Collier Fishery OF THE GULF OF MEXICO By Kenneth H. Driimmond and George B. Austin, Jr. Department of Oceanography The A. & M

432

Chemical & Biomolecular Engineering Undergraduate Curriculum First Semester  

E-Print Network [OSTI]

Name Hours CHEM 113 Fundamental Chemistry I 1 4 CHME 113 Intro to Chemical Engineering I 2 ENGR 010 Quantitative Chemistry Lab 1 2 CHME 114 Intro to Chemical Engineering II 2 MATH 107 Analytic Geometry Chemistry Lab 1 CHME 202 Mass & Energy Balances 3 ENGM 223 Engineering Statics 3 ENGR 020 Sophomore

Farritor, Shane

433

Computing Resources at Chemical and Biochemical Engineering  

E-Print Network [OSTI]

Main Site Dept. of Chemical and Biochemical Engineering, 98 Brett Road Piscataway, NJ 08854-8058 PhoneComputing Resources at Chemical and Biochemical Engineering Note that use of all Rutgers University at: http://rucs.rutgers.edu/acceptable- use.html. Microlab. The PC Microlab (Engineering Room C233

434

Department of Chemical and Petroleum Engineering  

E-Print Network [OSTI]

Real World Process from Inception to Pre-construction ­ Apply Concepts Learned in Class to Industrial Quality and Air Pollution Control Chemical Engineering Energy & Env. Specialization #12;CHEMICAL World-Class Industry ­ Oil and Gas Exploration & Recovery ­ Heavy Oil & Bitumen ­ Natural Gas, Coal Bed

Habib, Ayman

435

Excellence in biotechnology for fuels and chemicals  

SciTech Connect (OSTI)

The Biotechnology Center for Fuels and Chemicals (BCFC) leads a national effort, in cooperation with industry, to develop innovative, market-driven biotechnologies for producing fuels and chemicals from renewable resources. The BCFC researchers focus on using bioprocesses to convert renewable biomass feedstocks into valuable products.

Neufeld, S.

1999-04-23T23:59:59.000Z

436

CHEMICAL THERMODYNAMICS AND KINETICS Class Meetings  

E-Print Network [OSTI]

CHEM 6471 CHEMICAL THERMODYNAMICS AND KINETICS Class Meetings 9:35 ≠ 10:55 am, Tuesday and Thursday of October 22-26 Textbooks Molecular Thermodynamics by D.A McQuarrie and J.D. Simon, University Science Books the laws of classical thermodynamics and some of their chemical applications. It also covers basic

Sherrill, David

437

CHEMICAL ENGINEERING DEPARTMENT AND GRADUATE SCHOOL  

E-Print Network [OSTI]

Thermodynamics (ChE 2164) d. Chemical Reactor Analysis and Design (ChE 3184) e. Separation Processes (ChE 3134) f1 CHEMICAL ENGINEERING DEPARTMENT AND GRADUATE SCHOOL POLICIES AND PROCEDURES MANUAL REQUIREMENTS by concurrent registration if necessary. Departmental Core Graduate Courses The following five courses

Lu, Chang

438

Chemical Safety Vulnerability Working Group Report  

SciTech Connect (OSTI)

This report marks the culmination of a 4-month review conducted to identify chemical safety vulnerabilities existing at DOE facilities. This review is an integral part of DOE's efforts to raise its commitment to chemical safety to the same level as that for nuclear safety.

Not Available

1994-09-01T23:59:59.000Z

439

Level MSc 2013/14 Chemical Engineering  

E-Print Network [OSTI]

Level MSc 2013/14 Chemical Engineering MSc Chemical Engineering Coordinator: Dr. P Douglas Semester 1 Modules Semester 2 Modules EG-M01 Complex Fluids and Flows 10 Credits Dr. MS Barrow EGDM01 Colloid and Interface Science 10 Credits Dr. CM Mcfarlane EG-M47 Entrepreneurship for Engineers 10 Credits Professor K

Martin, Ralph R.

440

Level M 2013/14 Chemical Engineering  

E-Print Network [OSTI]

for the characterisation of complex fluids and associated engineering calculations for pipeline transport and other flowLevel M 2013/14 Chemical Engineering MEng Chemical Engineering[H801,H890] Coordinator: Dr. PM Williams Semester 1 Modules Semester 2 Modules EG-M01 Complex Fluids and Flows 10 Credits Dr. MS Barrow EG

Harman, Neal.A.

Note: This page contains sample records for the topic "disciplines chemical dynamics" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


441

Use and Misuse of Chemical Reactivity Spreadsheets  

SciTech Connect (OSTI)

Misidentifying chemical hazards can have serious deleterious effects. Consequences of not identifying a chemical are obvious and include fires, explosions, injury to workers, etc. Consequences of identifying hazards that are really not present can be equally as bad. Misidentifying hazards can result in increased work with loss of productivity, increased expenses, utilization/consumption of scarce resources, and the potential to modify the work to include chemicals or processes that are actually more hazardous than those originally proposed. For these reasons, accurate hazard identification is critical to any safety program. Hazard identification in the world of chemistry is, at best, a daunting task. The knowing or understanding, of the reactions between any of approximately twelve million known chemicals that may be hazardous, is the reason for this task being so arduous. Other variables, such as adding other reactants/contaminants or changing conditions (e.g., temperature, pressure, or concentration), make hazard determination something many would construe as being more than impossibly difficult. Despite these complexities, people who do not have an extensive background in the chemical sciences can be called upon to perform chemical hazard identification. Because hazard identification in the area of chemical safety is so burdensome and because people with a wide variety of training are called upon to perform this work, tools are required to aid in chemical hazard identification. Many tools have been developed. Unfortunately, many of these tools are not seen as the limited resource that they are and are used inappropriately.

Simmons, F

2005-09-20T23:59:59.000Z

442

Chemical Reactor Models of Digestion Modulation  

E-Print Network [OSTI]

Chemical Reactor Models of Digestion Modulation William Wolesensky & J. David Logan Department give an overview of the application of chemical reactor theory to models of digestion processes and indicate how those models extend to eco-physiological questions of modulation of digestion and feeding

Logan, David

443

Social Dynamics Introduction  

E-Print Network [OSTI]

: University of Utah Press. 47-69. Part II: Importance of Dynamics Introduction to part II 1. Trust, Risk Jason Alexander) (1999) The Journal of Philosophy. 96: 588-598. 3. Stability and Explanatory Significance of Some Simple Evolutionary Models (2000) Philosophy of Science 67: 94-113. 4. Dynamics

Barrett, Jeffrey A.

444

Seminar N 03301, Dynamically  

E-Print Network [OSTI]

Seminar N¬ļ 03301, Dynamically Reconfigurable Architectures A Mead-&-Conway-like Break ¬∑Ametek ¬∑Applied Dynamics ¬∑Astronautics ¬∑BBN ¬∑CDC ¬∑Convex ¬∑Cray Computer ¬∑Cray Research ¬∑Culler-Harris

Hartenstein, Reiner

445

Heavy quark scattering and quenching in a QCD medium at finite temperature and chemical potential  

E-Print Network [OSTI]

The heavy quark collisional scattering on partons of the quark gluon plasma (QGP) is studied in a QCD medium at finite temperature and chemical potential. We evaluate the effects of finite parton masses and widths, finite temperature $T$ and quark chemical potential $\\mu_q$ on the different elastic cross sections for dynamical quasi-particles (on- and off-shell particles in the QGP medium as described by the dynamical quasi-particles model "DQPM") using the leading order Born diagrams. Our results show clearly the decrease of the $qQ$ and $gQ$ total elastic cross sections when the temperature and the quark chemical potential increase. These effects are amplified for finite $\\mu_q$ at temperatures lower than the corresponding critical temperature $T_c (\\mu_q)$. Using these cross sections we, furthermore, estimate the energy loss and longitudinal and transverse momentum transfers of a heavy quark propagating in a finite temperature and chemical potential medium. Accordingly, we have shown that the transport pro...

Berrehrah, H; Cassing, W; Gossiaux, P B; Aichelin, J

2015-01-01T23:59:59.000Z

446

Temperature effects on chemical structure and motion in coal. Final report  

SciTech Connect (OSTI)

The objective of this project was to apply recently developed, state-of-the-art nuclear magnetic resonance (NMR) techniques to examine in situ changes in the chemical structure and molecular/macromolecular motion in coal as the temperature is increased above room temperature. Although alterations in the chemical structure of coal have been studied previously by {sup 13}C NMR, using quenched samples, the goal of this project was to examine these chemical structural changes, and changes in molecular/macromolecular mobility that may precede or accompany the chemical changes, at elevated temperatures, using modern {sup 13}C and {sup 1}H NMR techniques, especially {sup 1}H dipolar-dephasing techniques and related experiments pioneered in the laboratory for examining pyridine-saturated coals. This project consisted of the following four primary segments and related efforts on matters relevant to the first four tasks. (1) {sup 1}H NMR characterization of coal structure and mobility as a function of temperature variation over a temperature range (30--240 C) for which substantial chemical transformations were not anticipated. (2) {sup 1}H NMR characterization of coal structure, mobility and conversion as a function of temperature variation over a temperature range (240--500 C) for which chemical transformations of coal are known to occur. (3) {sup 13}C NMR investigation of coal structure/mobility as a function of temperature over a temperature range (30--240 C) for which substantial chemical transformations were not anticipated. (4) {sup 13}C NMR investigation of coal structure, dynamics and conversion as a function of temperature variation over a range (240--500 C) for which chemical transformations of coal are known to occur. (5) Related matters relevant to the first four tasks: (a) {sup 1}H CRAMPS NMR characterization of oil shales and their kerogen concentrates; and (b) improved quantitation in {sup 13}C MAS characterization of coals.

Maciel, G.E.

1996-09-30T23:59:59.000Z

447

Surface wave chemical detector using optical radiation  

DOE Patents [OSTI]

A surface wave chemical detector comprising at least one surface wave substrate, each of said substrates having a surface wave and at least one measurable surface wave parameter; means for exposing said surface wave substrate to an unknown sample of at least one chemical to be analyzed, said substrate adsorbing said at least one chemical to be sensed if present in said sample; a source of radiation for radiating said surface wave substrate with different wavelengths of said radiation, said surface wave parameter being changed by said adsorbing; and means for recording signals representative of said surface wave parameter of each of said surface wave substrates responsive to said radiation of said different wavelengths, measurable changes of said parameter due to adsorbing said chemical defining a unique signature of a detected chemical.

Thundat, Thomas G.; Warmack, Robert J.

2007-07-17T23:59:59.000Z

448

Generalized models as a universal approach to the analysis of nonlinear dynamical systems  

E-Print Network [OSTI]

We present a universal approach to the investigation of the dynamics in generalized models. In these models the processes that are taken into account are not restricted to specific functional forms. Therefore a single generalized models can describe a class of systems which share a similar structure. Despite this generality, the proposed approach allows us to study the dynamical properties of generalized models efficiently in the framework of local bifurcation theory. The approach is based on a normalization procedure that is used to identify natural parameters of the system. The Jacobian in a steady state is then derived as a function of these parameters. The analytical computation of local bifurcations using computer algebra reveals conditions for the local asymptotic stability of steady states and provides certain insights on the global dynamics of the system. The proposed approach yields a close connection between modelling and nonlinear dynamics. We illustrate the investigation of generalized models by considering examples from three different disciplines of science: a socio-economic model of dynastic cycles in china, a model for a coupled laser system and a general ecological food web.

Thilo Gross; Ulrike Feudel

2006-01-29T23:59:59.000Z

449

Trend Motif: A Graph Mining Approach for Analysis of Dynamic Complex Networks  

SciTech Connect (OSTI)

Complex networks have been used successfully in scientific disciplines ranging from sociology to microbiology to describe systems of interacting units. Until recently, studies of complex networks have mainly focused on their network topology. However, in many real world applications, the edges and vertices have associated attributes that are frequently represented as vertex or edge weights. Furthermore, these weights are often not static, instead changing with time and forming a time series. Hence, to fully understand the dynamics of the complex network, we have to consider both network topology and related time series data. In this work, we propose a motif mining approach to identify trend motifs for such purposes. Simply stated, a trend motif describes a recurring subgraph where each of its vertices or edges displays similar dynamics over a userdefined period. Given this, each trend motif occurrence can help reveal significant events in a complex system; frequent trend motifs may aid in uncovering dynamic rules of change for the system, and the distribution of trend motifs may characterize the global dynamics of the system. Here, we have developed efficient mining algorithms to extract trend motifs. Our experimental validation using three disparate empirical datasets, ranging from the stock market, world trade, to a protein interaction network, has demonstrated the efficiency and effectiveness of our approach.

Jin, R; McCallen, S; Almaas, E

2007-05-28T23:59:59.000Z

450

The photodissociation and reaction dynamics of vibrationally excited molecules  

SciTech Connect (OSTI)

This research determines the nature of highly vibrationally excited molecules, their unimolecular reactions, and their photodissociation dynamics. The goal is to characterize vibrationally excited molecules and to exploit that understanding to discover and control their chemical pathways. Most recently the author has used a combination of vibrational overtone excitation and laser induced fluorescence both to characterize vibrationally excited molecules and to study their photodissociation dynamics. The author has also begun laser induced grating spectroscopy experiments designed to obtain the electronic absorption spectra of highly vibrationally excited molecules.

Crim, F.F. [Univ. of Wisconsin, Madison (United States)

1993-12-01T23:59:59.000Z

451

Quantum effects in unimolecular reaction dynamics  

SciTech Connect (OSTI)

This work is primarily concerned with the development of models for the quantum dynamics of unimolecular isomerization and photodissociation reactions. We apply the rigorous quantum methodology of a Discrete Variable Representation (DVR) with Absorbing Boundary Conditions (ABC) to these models in an attempt to explain some very surprising results from a series of experiments on vibrationally excited ketene. Within the framework of these models, we are able to identify the experimental signatures of tunneling and dynamical resonances in the energy dependence of the rate of ketene isomerization. Additionally, we investigate the step-like features in the energy dependence of the rate of dissociation of triplet ketene to form {sup 3}B{sub 1} CH{sub 2} + {sup 1}{sigma}{sup +} CO that have been observed experimentally. These calculations provide a link between ab initio calculations of the potential energy surfaces and the experimentally observed dynamics on these surfaces. Additionally, we develop an approximate model for the partitioning of energy in the products of photodissociation reactions of large molecules with appreciable barriers to recombination. In simple bond cleavage reactions like CH{sub 3}COCl {yields} CH{sub 3}CO + Cl, the model does considerably better than other impulsive and statistical models in predicting the energy distribution in the products. We also investigate ways of correcting classical mechanics to include the important quantum mechanical aspects of zero-point energy. The method we investigate is found to introduce a number of undesirable dynamical artifacts including a reduction in the above-threshold rates for simple reactions, and a strong mixing of the chaotic and regular energy domains for some model problems. We conclude by discussing some of the directions for future research in the field of theoretical chemical dynamics.

Gezelter, J.D.

1995-12-01T23:59:59.000Z

452

Quantum Chemical Simulations Reveal Acetylene-Based Growth Mechanisms in the Chemical Vapor Deposition Synthesis of Carbon Nanotubes  

SciTech Connect (OSTI)

Nonequilibrium quantum chemical molecular dynamics (QM/MD) simulation of early stages in the nucleation process of carbon nanotubes from acetylene feedstock on an Fe38 cluster was performed based on the density-functional tight-binding (DFTB) potential. Representative chemical reactions were studied by complimentary static DFTB and density functional theory (DFT) calculations. Oligomerization and cross-linking reactions between carbon chains were found as the main reaction pathways similar to that suggested in previous experimental work. The calculations highlight the inhibiting effect of hydrogen for the condensation of carbon ring networks, and a propensity for hydrogen disproportionation, thus enriching the hydrogen content in already hydrogen-rich species and abstracting hydrogen content in already hydrogen-deficient clusters. The ethynyl radical C2H was found as a reactive, yet continually regenerated species, facilitating hydrogen transfer reactions across the hydrocarbon clusters. The nonequilibrium QM/MD simulations show the prevalence of a pentagon-first nucleation mechanism where hydrogen may take the role of one arm of an sp2 carbon Y-junction. The results challenge the importance of the metal carbide formation for SWCNT cap nucleation in the VLS model and suggest possible alternative routes following hydrogen-abstraction acetylene addition (HACA)-like mechanisms commonly discussed in combustion synthesis.

Eres, Gyula [ORNL] [ORNL; Wang, Ying [Nagoya University, Japan] [Nagoya University, Japan; Gao, Xingfa [Institute of High Energy Physics, Chinese Academy of Sciences, China] [Institute of High Energy Physics, Chinese Academy of Sciences, China; Qian, Hu-Jun [Jilin University, Changchun] [Jilin University, Changchun; Ohta, Yasuhito [Fukui Institute of Fundamental Chemistry, Kyoto University, Kyoto 606-8103, Japan] [Fukui Institute of Fundamental Chemistry, Kyoto University, Kyoto 606-8103, Japan; Wu, Xiaona [Nagoya University, Japan] [Nagoya University, Japan; Morokuma, Keiji [Fukui Institute of Fundamental Chemistry, Kyoto University, Kyoto 606-8103, Japan] [Fukui Institute of Fundamental Chemistry, Kyoto University, Kyoto 606-8103, Japan; Irle, Stephan [WPI-Institute of Transformative Bio-Molecules and Department of Chemistry, Nagoya University, Japan] [WPI-Institute of Transformative Bio-Molecules and Department of Chemistry, Nagoya University, Japan

2014-01-01T23:59:59.000Z

453

Los Alamos Dynamics Summer School  

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

School The Sixteenth Los Alamos Dynamics Summer School EXTENDED DEADLINES Los Alamos Dynamics Summer School Overview Contact Institute Director Charles Farrar (505) 663-5330...

454

Beam Dynamics for Induction Accelerators  

E-Print Network [OSTI]

Dynamics for Induction Accelerators Edward P. Lee Lawrencea natural candidate accelerator for a heavy ion fusion (HIF)words: Fusion, Induction, Accelerators, Dynamics This work

Lee, E.P.

2014-01-01T23:59:59.000Z

455

Studies in Nonlinear Dynamics & Econometrics  

E-Print Network [OSTI]

Studies in Nonlinear Dynamics & Econometrics Volume 8, Issue 3 2004 Article 1 The Long Memory in Nonlinear Dynamics & Econometrics is produced by The Berkeley Electronic Press (bepress). http

456

Dynamic Prediction of Concurrency Errors  

E-Print Network [OSTI]

Relation 15 Must-Before Race Prediction 16 Implementation 17viii Abstract Dynamic Prediction of Concurrency Errors bySANTA CRUZ DYNAMIC PREDICTION OF CONCURRENCY ERRORS A

Sadowski, Caitlin

2012-01-01T23:59:59.000Z

457

Platform Chemicals from an Oilseed Biorefinery  

SciTech Connect (OSTI)

The US chemical industry is $460 billion in size where a $150 billion segment of which is non-oxygenated chemicals that is sourced today via petroleum but is addressable by a renewable feedstock if one considers a more chemically reduced feedstock such as vegetable oils. Vegetable oil, due to its chemical functionality, provides a largely untapped opportunity as a renewable chemical source to replace petroleum-derived chemicals and produce platform chemicals unavailable today. This project examined the fertile intersection between the rich building blocks provided by vegetable oils and the enhanced chemical modification capability provided by metathesis chemistry. The technology advanced in this study is the process of ethylene cross-metathesis (referred to as ethenolysis) with vegetable oil and vegetable oil derivatives to manufacture the platform-chemical 9-decenoic acid (or 9DA) and olefin co-products. The project team meet its goals of demonstrating improved catalyst efficiencies of several multiples, deepening the mechanistic understanding of metathesis, synthesis and screening of dozens of new catalysts, designing and modeling commercial processes, and estimating production costs. One demonstrable result of the study was a step change improvement in catalyst turnover number in the ethenolysis of methyl oleate as reported here. We met our key measurable of producing 100 lbs of 9DA at the pilot-scale, which demonstrated ability to scale-up ethenolysis. DOE Project funding had significant positive impact on development of metathetically modified vegetable oils more broadly as the Cargill/Materia partnership, that was able to initiate primarily due to DOE funding, has succeeded in commercializing products, validating metathesis as a platform technology, and expanding a diverse products portfolio in high value and in large volume markets. Opportunities have expanded and business development has gained considerable momentum and enabled further expansion of the Materia/Cargill relationship. This project exceeded expectations and is having immediate impact on DOE success by replacing petroleum products with renewables in a large volume application today.

Tupy, Mike; Schrodi Yann

2006-11-06T23:59:59.000Z

458

Appendix F. Chemicals Annual Site Environmental Report--2011  

E-Print Network [OSTI]

, pesticides, and industrial chemicals. Through the use of chemicals, we can increase food production, cure are exposed to chemicals by inhalation (breathing air), ingestion (eating exposed plants and animalsAppendix F. Chemicals #12;#12;Annual Site Environmental Report--2011 Appendix F. Chemicals F-3

Pennycook, Steve

459

Chemical preconcentrator with integral thermal flow sensor  

DOE Patents [OSTI]

A chemical preconcentrator with integral thermal flow sensor can be used to accurately measure fluid flow rate in a microanalytical system. The thermal flow sensor can be operated in either constant temperature or constant power mode and variants thereof. The chemical preconcentrator with integral thermal flow sensor can be fabricated with the same MEMS technology as the rest of the microanlaytical system. Because of its low heat capacity, low-loss, and small size, the chemical preconcentrator with integral thermal flow sensor is fast and efficient enough to be used in battery-powered, portable microanalytical systems.

Manginell, Ronald P. (Albuquerque, NM); Frye-Mason, Gregory C. (Cedar Crest, NM)

2003-01-01T23:59:59.000Z

460

Chemical safety: asking the right questions  

SciTech Connect (OSTI)

Recent reports have shown that, despite efforts to the contrary, chemical accidents continue to occur at an unacceptable rate and there is no evidence that this rate is decreasing. Based on this observation, one can conclude that previous analyses have not accurately identified and implemented appropriate fixes to eliminate identified root causes for chemical events. Based on this, it is time to reevaluate chemical accident data with a fresh eye and determine (a) what corrective actions have already been identified but have not been implemented, (b) what other root causes may be involved, and (c) what new corrective actions should be taken to eliminate these newly identified root causes.

Whyte, Helena M [Los Alamos National Laboratory; Quigley, David [Y-12/NSC; Simmons, Fred [SRS; Freshwater, David [DOE/NNSA; Robertson, Janeen [LLNL

2008-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "disciplines chemical dynamics" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


461

CHEMICAL SAFETY: ASKING THE RIGHT QUESTIONS  

SciTech Connect (OSTI)

Recent reports have shown that, despite efforts to the contrary, chemical accidents continue to occur at an unacceptable rate and there is no evidence that this rate is decreasing. Based on this observation, one can conclude that previous analyses have not accurately identified and implemented appropriate fixes to eliminate identified root causes for chemical events. Based on this, it is time to reevaluate chemical accident data with a fresh eye and determine (a) what corrective actions have already been identified but have not been implemented, (b) what other root causes may be involved, and (c) what new corrective actions should be taken to eliminate these newly identified root causes.

Simmons, F

2008-08-05T23:59:59.000Z

462

Chemical Sciences Division | Advanced Materials |ORNL  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation Proposed New Substation SitesStandingtheirCheck In &Chemical LabelChemicalChemical

463

Chemical and Engineering Materials | Neutron Science | ORNL  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation Proposed New Substation SitesStandingtheirCheck In &ChemicalAnalysis ofChemicalChemical

464

Development of High Temperature/High Sensitivity Novel Chemical Resistive Sensor  

SciTech Connect (OSTI)

The research has been focused to design, fabricate, and develop high temperature/high sensitivity novel multifunctional chemical sensors for the selective detection of fossil energy gases used in power and fuel systems. By systematically studying the physical properties of the LnBaCo{sub 2}O{sub 5+d} (LBCO) [Ln=Pr or La] thin?films, a new concept chemical sensor based high temperature chemical resistant change has been developed for the application for the next generation highly efficient and near zero emission power generation technologies. We also discovered that the superfast chemical dynamic behavior and an ultrafast surface exchange kinetics in the highly epitaxial LBCO thin films. Furthermore, our research indicates that hydrogen can superfast diffuse in the ordered oxygen vacancy structures in the highly epitaxial LBCO thin films, which suggest that the LBCO thin film not only can be an excellent candidate for the fabrication of high temperature ultra sensitive chemical sensors and control systems for power and fuel monitoring systems, but also can be an excellent candidate for the low temperature solid oxide fuel cell anode and cathode materials.

Chen, Chonglin; Nash, Patrick; Ma, Chunrui; Enriquez, Erik; Wang, Haibing; Xu, Xing; Bao, Shangyong; Collins, Gregory

2013-08-13T23:59:59.000Z

465

Towards a Hybrid Dynamic Logic for Hybrid Dynamic Systems1  

E-Print Network [OSTI]

HyLo 2006 Towards a Hybrid Dynamic Logic for Hybrid Dynamic Systems1 Andr¬īe Platzer2 Carnegie platzer@informatik.uni-oldenburg.de Abstract We introduce a hybrid variant of a dynamic logic for this extended hybrid dynamic logic. With the addition of satisfaction operators, this hybrid logic provides

Platzer, André

466

Local Polarization Dynamics in Ferroelectric Materials  

SciTech Connect (OSTI)

Ferroelectrics and multiferroics have recently emerged as perspective materials for information technology and data storage applications. The combination of extremely narrow domain wall width and the capability to manipulate polarization by electric field opens the pathway towards ultrahigh (>10 TBit/in2) storage densities and small (sub-10 nm) feature sizes. The coupling between polarization and chemical and transport properties enables applications in ferroelectric lithography and electroresistive devices. The progress in these applications, as well as fundamental studies of polarization dynamics and the role of defects and disorder on domain nucleation and wall motion, requires the capability to probe these effects on the nanometer scale. In this review, we summarize recent progress in applications of Piezoresponse Force Microscopy (PFM) for imaging, manipulation, and spectroscopy of ferroelectric switching processes. We briefly introduce the principles and relevant instrumental aspects of PFM, with special emphasis on resolution and information limits. The local imaging studies of domain dynamics, including local switching and relaxation accessed through imaging experiments, and spectroscopic studies of polarization switching, are discussed in detail. Finally, we briefly review the recent progress on photochemical processes on ferroelectric surfaces, the role of surface adsorbates, and imaging and switching in liquids. Beyond classical applications, probing local bias-induced transition dynamics by PFM opens the pathway to studies of the influence of a single defect on electrochemical and solid state processes, thus providing model systems for batteries, fuel cells, and supercapacitor applications.

Kalinin, Sergei V [ORNL; Morozovska, A. N. [National Academy of Science of Ukraine, Kiev, Ukraine; Chen, L. Q. [Pennsylvania State University; Rodriguez, Brian J [ORNL

2010-01-01T23:59:59.000Z

467

The Dynamical Challenge†  

E-Print Network [OSTI]

Recent studies such as Thelen and Smith (1994), Kelso (1995), Van Gelder (1995), Beer (1995), and others have presented a forceful case for a dynamical systems approach to understanding cognition and adaptive behavior. ...

Clark, Andy

1997-01-01T23:59:59.000Z

468

Dynamic Instruction Fusion  

E-Print Network [OSTI]

File Size Dynamic Read Energy (nJ) # of Ports Figure 17:with fewer ports, are much less expensive energy-wise. By ďEnergy by Register File Size Leakage Power (mW) # of Ports

Lee, Ian

2012-01-01T23:59:59.000Z

469

Dynamics of Nanoconfined Acetonitrile  

E-Print Network [OSTI]

The results of dynamics simulations of confined acetonitrile are presented. Confinement is achieved by filling previously formed silica pores having hydroxyl-terminated head groups with liquid acetonitrile. These pores are of the same nominal radius...

Norton, Cassandra

2011-04-27T23:59:59.000Z

470

Dynamics in Formal Argumentation†  

E-Print Network [OSTI]

by constructing and weighing up arguements intended to give support in favour or against alternative conclusions. In dynamic argumentation, such arguements may be revised and strengthened in order yo increase to decrease the acceptability of controversial...

Carbogim, Daniela Vasconcelos

471

Testing dynamically reconfigurable FPGAs  

E-Print Network [OSTI]

In this work, testing methods are proposed to test the ics. logic resources and the interconnect structure of dynamically reconfigurable FPGAS. Testing methods are also proposed for testing the dedicated CPU interface in these FPGAS. A BIST...

Ruiwale, Sameer Jagadish

1998-01-01T23:59:59.000Z

472

Collaborating for Multi-Scale Chemical Science  

SciTech Connect (OSTI)

Advanced model reduction methods were developed and integrated into the CMCS multiscale chemical science simulation software. The new technologies were used to simulate HCCI engines and burner flames with exceptional fidelity.

William H. Green

2006-07-14T23:59:59.000Z

473

Frontiers in Chemical Imaging Seminar Series  

E-Print Network [OSTI]

Frontiers in Chemical Imaging Seminar Series On the trail of the Chimera The Atom the Chimera is still elusive. 1. Thomas F. Kelly and David J. Larson. Ann Rev. Materials Res 42 (2012) 1. 2

474

BIOMEDICAL ENGINEERING CHEMICAL AND BIOLOGICAL ENGINEERING  

E-Print Network [OSTI]

BIOMEDICAL ENGINEERING CHEMICAL AND BIOLOGICAL ENGINEERING CIVIL, ARCHITECTURAL, AND ENVIRONMENTAL ENGINEERING ELECTRICAL AND COMPUTER ENGINEERING MECHANICAL, MATERIALS, AND AEROSPACE ENGINEERING COLLEGE OF ENGINEERING IIT ARMOUR #12;WHY ENGINEERINGAT IIT ARMOUR? Five Departments. One Distinctive Educational

Heller, Barbara

475

Sensor for detecting and differentiating chemical analytes  

DOE Patents [OSTI]

A sensor for detecting and differentiating chemical analytes includes a microscale body having a first end and a second end and a surface between the ends for adsorbing a chemical analyte. The surface includes at least one conductive heating track for heating the chemical analyte and also a conductive response track, which is electrically isolated from the heating track, for producing a thermal response signal from the chemical analyte. The heating track is electrically connected with a voltage source and the response track is electrically connected with a signal recorder. The microscale body is restrained at the first end and the second end and is substantially isolated from its surroundings therebetween, thus having a bridge configuration.

Yi, Dechang (Metuchen, NJ); Senesac, Lawrence R. (Knoxville, TN); Thundat, Thomas G. (Knoxville, TN)

2011-07-05T23:59:59.000Z

476

Chemical vapor deposition of antimicrobial polymer coatings  

E-Print Network [OSTI]

There is large and growing interest in making a wide variety of materials and surfaces antimicrobial. Initiated chemical vapor deposition (iCVD), a solventless low-temperature process, is used to form thin films of polymers ...

Martin, Tyler Philip, 1977-

2007-01-01T23:59:59.000Z

477

Chemical sensor with oscillating cantilevered probe  

DOE Patents [OSTI]

The invention provides a method of detecting a chemical species with an oscillating cantilevered probe. A cantilevered beam is driven into oscillation with a drive mechanism coupled to the cantilevered beam. A free end of the oscillating cantilevered beam is tapped against a mechanical stop coupled to a base end of the cantilevered beam. An amplitude of the oscillating cantilevered beam is measured with a sense mechanism coupled to the cantilevered beam. A treated portion of the cantilevered beam is exposed to the chemical species, wherein the cantilevered beam bends when exposed to the chemical species. A second amplitude of the oscillating cantilevered beam is measured, and the chemical species is determined based on the measured amplitudes.

Adams, Jesse D

2013-02-05T23:59:59.000Z

478

Method and apparatus for detecting chemical binding  

DOE Patents [OSTI]

The method for screening binding between a target binder and potential pharmaceutical chemicals involves sending a solution (preferably an aqueous solution) of the target binder through a conduit to a size exclusion filter, the target binder being too large to pass through the size exclusion filter, and then sending a solution of one or more potential pharmaceutical chemicals (preferably an aqueous solution) through the same conduit to the size exclusion filter after target binder has collected on the filter. The potential pharmaceutical chemicals are small enough to pass through the filter. Afterwards, x-rays are sent from an x-ray source to the size exclusion filter, and if the potential pharmaceutical chemicals form a complex with the target binder, the complex produces an x-ray fluorescence signal having an intensity that indicates that a complex has formed.

Warner, Benjamin P. (Los Alamos, NM); Havrilla, George J. (Los Alamos, NM); Miller, Thomasin C. (Los Alamos, NM); Wells, Cyndi A. (Los Alamos, NM)

2007-07-10T23:59:59.000Z

479

Tools for chemical synthesis in microsystems  

E-Print Network [OSTI]

Chemical synthesis in microsystems has evolved from simple proof-of-principle examples to become a general technique in academia and industry. Numerous such ďflow chemistryĒ applications are now found in pharmaceutical and ...

Jensen, Klavs F.

480

TCD-IISc Symposium "Chemistry & Chemical Biology"  

E-Print Network [OSTI]

actinide chemistry, with a focus on coordination and organometallic uranium chemistry. Paula ColavitaTCD-IISc Symposium "Chemistry & Chemical Biology" Trinity College Clive Williams, Dean of Chemistry. Research areas include supramolecular organic and inorganic chemistry and medicinal chemistry

O'Mahony, Donal E.

Note: This page contains sample records for the topic "disciplines chemical dynamics" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


481

The 30th Annual Chemical Physics  

E-Print Network [OSTI]

of Waterloo Department of Chemistry, University of Waterloo AB SCIEX #12;Symposium on Chemical PhysicsMaster University) Ab Initio Modeling of Excited States of Uranium Compounds: Dissecting the Interplay of Electron

Le Roy, Robert J.

482

Acoustic cavitation and its chemical consequences  

E-Print Network [OSTI]

Acoustic cavitation and its chemical consequences By Kenneth S. Suslick, Yuri Didenko, Ming M. Fang Acoustic cavitation is responsible for both sonochemistry and sonoluminescence. Bubble collapse in liquids, sonochemistry and sonoluminescence derive principally from acoustic cavitation: the formation, growth

Suslick, Kenneth S.

483

Chemical and Petroleum Engineering Petroleum Engineering Minor  

E-Print Network [OSTI]

Chemical and Petroleum Engineering Petroleum Engineering Minor Students their skills by taking a minor in petroleum engineering. Energy is the largest global industry at $3 trillion annually, and petroleum supplies 60 percent

Calgary, University of

484

Environmental toxicity of complex chemical mixtures  

E-Print Network [OSTI]

and wildlife tissues were collected from four National Priority List Superfund sites within the United States. In general, chemical analysis was not always predictive of mixture toxicity. Although biodegradation reduced the concentration of total...

Gillespie, Annika Margaret

2009-05-15T23:59:59.000Z

485

Chemical Additive Selection in Matrix Acidizing  

E-Print Network [OSTI]

This work proposes to survey new chemical knowledge, developed since 1984, on fluid additives used in matrix stimulation treatments of carbonate and sandstone petroleum reservoirs and describes one method of organizing this new knowledge in a...

Weidner, Jason 1981-

2011-05-09T23:59:59.000Z

486

CHEMICAL HYGIENE PLAN HAZARD COMMUNICATION PLAN  

E-Print Network [OSTI]

Risk Manager 2687 Hospital Quality Assurance 3153 Hospital Clinical Engineering 2954 Human Resources #12;5. CHEMICAL HYGIENE PLAN 5.1 General Standard Operating Procedures 5.1.1 General Rules 5

Oliver, Douglas L.

487

CHEMICAL HYGIENE PLAN HAZARD COMMUNICATION PLAN  

E-Print Network [OSTI]

Department 2588 Hospital Risk Manager 2687 Hospital Quality Assurance 3153 Hospital Clinical Engineering 2954 #12;5. CHEMICAL HYGIENE PLAN 5.1 General Standard Operating Procedures 5.1.1 General Rules 5

Kim, Duck O.

488

CHEMICAL USE AND POLLUTION PREVENTION PRACTICES  

E-Print Network [OSTI]

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...65 4.3 Best Management Practices#12;CHEMICAL USE AND POLLUTION PREVENTION PRACTICES FOR COMMERCIAL CAR AND TRUCK WASH FACILITIES FINAL REPORT DOE FMP 1995-06 Prepared for: Environment Canada Environmental Protection Fraser Pollution

489

Photochemical reaction dynamics  

SciTech Connect (OSTI)

The purpose of the program is to develop a fundamental understanding of unimolecular and bimolecular reaction dynamics with application in combustion and energy systems. The energy dependence in ketene isomerization, ketene dissociation dynamics, and carbonyl substitution on organometallic rhodium complexes in liquid xenon have been studied. Future studies concerning unimolecular processes in ketene as well as energy transfer and kinetic studies of methylene radicals are discussed.

Moore, B.C. [Lawrence Berkeley Laboratory, Livermore, CA (United States)

1993-12-01T23:59:59.000Z

490

Local Writhing Dynamics  

E-Print Network [OSTI]

We present an alternative local definition of the writhe of a self-avoiding closed loop which differs from the traditional non-local definition by an integer. When studying dynamics this difference is immaterial. We employ a formula due to Aldinger, Klapper and Tabor for the change in writhe and propose a set of local, link preserving dynamics in an attempt to unravel some puzzles about actin.

Randall D. Kamien

1997-03-13T23:59:59.000Z

491

Multipulsed dynamic moire interferometer  

DOE Patents [OSTI]

An improved dynamic moire interferometer comprised of a lasing medium providing a plurality of beams of coherent light, a multiple q-switch producing multiple trains of 100,000 or more pulses per second, a combining means collimating multiple trains of pulses into substantially a single train and directing beams to specimen gratings affixed to a test material, and a controller, triggering and sequencing the emission of the pulses with the occurrence and recording of a dynamic loading event.

Deason, Vance A. (Idaho Falls, ID)

1991-01-01T23:59:59.000Z

492

Some dynamics of carbon, nitrogen and phosphorus in the marine shelf environment of the Mississippi Fan  

E-Print Network [OSTI]

SOME DYNAMICS OF CARBON, NITROGEN AND PHOSPHORUS IN THE MARINE SHELF ENVIRONMENT OF THE MISSISSIPPI FAN A Thesis by DANIEL WAYNE ARMSTRONG Submitted to the Graduate College of Texas ASM University in partial fulfillment of the requirement... for the degree of MASTER OF SCIENCE December 1974 Major Subject: Chemical Oceanography SOME DYNAMICS OF CARBON NITROGEN, AND PHOSPHORUS IN THE MARINE SHELF ENVIRONMENT OF THE MISSISSIPPI FAN A Thesis by DANIEL WAYNE ARMSTRONG Approved as to style...

Armstrong, Daniel Wayne

1974-01-01T23:59:59.000Z

493

Quantification of model mismatch errors of the dynamic energy distribution in a stirred-tank reactor  

E-Print Network [OSTI]

QUANTIFICATION OF MODEL MISMATCH ERRORS OF THE DYNAMIC ENERGY DISTRIBUTION IN A STIRRED- TANK REACTOR A Thesis by MARK RAYMOND KIMMICH Submitted to the Graduate College of Texas AkM University in partial fulfillment of the requirement... for the degree of MASTER OF SCIENCE August 198i Major Subject: Chemical Engineering QUANTIFICATION OF MODEL MISMATCH ERRORS OF THE DYNAMIC ENERGY DISTRIBUTION IN A STIRRED-TANK REACTOR A Thesis by MARK RAYMOND KIMMICH Approved as to style and content by...

Kimmich, Mark Raymond

1987-01-01T23:59:59.000Z

494

Polymer Reaction Engineering Laboratory Chemical and Biomolecular Engineering  

E-Print Network [OSTI]

Transporting chemicals Fume hoods and ventilation Refrigerators Incompatible chemicals The followingPolymer Reaction Engineering Laboratory Chemical and Biomolecular Engineering University are general guidelines for all laboratory workers: Follow all safety instructions carefully. Become

Choi, Kyu Yong

495

Chemical Hydrogen Storage R & D | Department of Energy  

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

Hydrogen Storage Chemical Hydrogen Storage R & D Chemical Hydrogen Storage R & D DOE's chemical hydrogen storage R&D is focused on developing low-cost energy-efficient...

496

Process safety management for highly hazardous chemicals  

SciTech Connect (OSTI)

Purpose of this document is to assist US DOE contractors who work with threshold quantities of highly hazardous chemicals (HHCs), flammable liquids or gases, or explosives in successfully implementing the requirements of OSHA Rule for Process Safety Management of Highly Hazardous Chemicals (29 CFR 1910.119). Purpose of this rule is to prevent releases of HHCs that have the potential to cause catastrophic fires, explosions, or toxic exposures.

NONE

1996-02-01T23:59:59.000Z

497

Silicon Sheets By Redox Assisted Chemical Exfoliation  

E-Print Network [OSTI]

In this paper, we report the direct chemical synthesis of silicon sheets in gram-scale quantities by chemical exfoliation of pre-processed calcium di-silicide (CaSi2). We have used a combination of X-ray photoelectron spectroscopy, transmission electron microscopy and Energy-dispersive X-ray spectroscopy to characterize the obtained silicon sheets. We found that the clean and crystalline silicon sheets show a 2-dimensional hexagonal graphitic structure.

Tchalala, Mohamed Rachid; Enriquez, Hanna; Kara, Abdelkader; Lachgar, Abdessadek; Yagoubi, Said; Foy, Eddy; Vega, Enrique; Bendounan, Azzedine; Silly, Mathieu G; Sirotti, Fausto; Nitshe, Serge; Chaudanson, Damien; Jamgotchian, Haik; Aufray, Bernard; Mayne, Andrew J; Dujardin, Gťrald; Oughaddou, Hamid

2013-01-01T23:59:59.000Z

498

Real time chemical exposure and risk monitor  

DOE Patents [OSTI]

The apparatus of the present invention is a combination of a breath interface and an external exposure dosimeter interface to a chemical analysis device, all controlled by an electronic processor for quantitatively analyzing chemical analysis data from both the breath interface and the external exposure dosimeter for determining internal tissue dose. The method of the present invention is a combination of steps of measuring an external dose, measuring breath content, then analyzing the external dose and breath content and determining internal tissue dose.

Thrall, Karla D. (3804 Alder Lake Ct., West Richland, WA 99353); Kenny, Donald V. (6947 Sparrow La., Worthington, OH 43235); Endres, George W. R. (2112 Briarwood Ct., Richland, WA 99352); Sisk, Daniel R. (1211 Marshall Ave., Richland, WA 99352)

1997-01-01T23:59:59.000Z

499

On the Chemical Potential of Dark Energy  

E-Print Network [OSTI]

It is widely assumed that the observed universe is accelerating due to the existence of a new fluid component called dark energy. In this article, the thermodynamics consequences of a nonzero chemical potential on the dark energy component is discussed with special emphasis to the phantom fluid case. It is found that if the dark energy fluid is endowed with a negative chemical potential, the phantom field hypothesis becomes thermodynamically consistent with no need of negative temperatures as recently assumed in the literature.

S. H. Pereira

2008-06-23T23:59:59.000Z

500

Dynamic reconfiguration of human brain networks during learning  

E-Print Network [OSTI]

Human learning is a complex phenomenon requiring flexibility to adapt existing brain function and precision in selecting new neurophysiological activities to drive desired behavior. These two attributes -- flexibility and selection -- must operate over multiple temporal scales as performance of a skill changes from being slow and challenging to being fast and automatic. Such selective adaptability is naturally provided by modular structure, which plays a critical role in evolution, development, and optimal network function. Using functional connectivity measurements of brain activity acquired from initial training through mastery of a simple motor skill, we explore the role of modularity in human learning by identifying dynamic changes of modular organization spanning multiple temporal scales. Our results indicate that flexibility, which we measure by the allegiance of nodes to modules, in one experimental session predicts the relative amount of learning in a future session. We also develop a general statistical framework for the identification of modular architectures in evolving systems, which is broadly applicable to disciplines where network adaptability is crucial to the understanding of system performance.

Danielle S. Bassett; Nicholas F. Wymbs; Mason A. Porter; Peter J. Mucha; Jean M. Carlson; Scott T. Grafton

2011-10-24T23:59:59.000Z