WorldCat Identities

United States Department of Energy Chicago Operations Office

Overview
Works: 7,866 works in 8,769 publications in 1 language and 32,498 library holdings
Genres: Directories  Conference papers and proceedings 
Roles: Researcher, Sponsor
Publication Timeline
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Most widely held works by United States
Solar radiation data forecast and interpolation analysis by John Woo( Book )

3 editions published in 1979 in English and held by 71 WorldCat member libraries worldwide

Final technical report for heat pipe central solar receiver by Walter B Bienert( Book )

in English and held by 66 WorldCat member libraries worldwide

The passive and hybrid solar energy program( Book )

2 editions published in 1980 in English and held by 39 WorldCat member libraries worldwide

Mechanisms and controlling characteristics of the catalytic oxidation of methane. Technical progress report, June 15, 1990--December 14, 1992( )

4 editions published between 1990 and 1992 in English and held by 0 WorldCat member libraries worldwide

Progress has included (1) construction and installation of an ultraviolet photoelectron spectrometer (UPS) with power supply and pumping system that has been added as an attachment to the SCIENTA ESCA-300 instrument, (2) modification of the high resolution electron energy loss spectrometer (HREELS) to produce a stable ultra high vacuum (UHV) environment for initial experiments with a Pd(311) single crystal, (3) construction of a separate high vacuum system for preparation of surface doped model catalysts by chemical vapor deposition and pretreatment of a Pd(100) single crystal in this system, (4) carried out detailed experiments of methane activation and oxidation on Pd(679) using a high pressure reaction cell contained in a third ultra high vacuum system, (5) completion of adsorption/desorption studies of H₂, CO, and O₂ on Pd(679), (6) utilized angle-resolved XPS to probe the diffraction characteristics and structure of the Pd(100) surface, (7) determination of the electronic surface structure of Pd(100) using angle-resolved UPS, and (8) computational analysis of oxygen overlayers on the PD(100) surface. Each of these is discussed in further detail below
Final report by Yale University( )

40 editions published between 1991 and 2011 in English and held by 0 WorldCat member libraries worldwide

In the last two dcades or so, many multiscale algorthms have been proposed to enable large scale computations which were thought as nearly intractable. For example, the fast multipole algorithm and other similar ideas have allowed to considerably speed up fundamental computations in electromagnetism, and many other fields. The thesis underlying this proposal is that traditional multiscale methods have been well-developed and it is clear that we now need new ideas in areas where traditional spatial multiscaling is ill-suited. In this context, the proposal argues that clever phase-space computations is bound to plan a crucial role in advancing algorithms and high-performance scientific computing. Our research past accomplishments have shown the existence of ideas beyond the traditional scale-space viewpoint such as new multiscale geometric representations of phase-space. We have shown that these clever representations lead to enhanced sparsity. We have shown that enhanced sparsity has significant important implications both for analysis, and for numerical applications, where sparsity allows for faster algorithms. We have implemented these ideas and built computational tools to be used as new building blocks of a new generation of wave propagation solvers. Finally, we have deployed these ideas into novel algorithms. In this last year, we assembled all these techniques and made significant progress in solving a variety of computational problems, which we then applied in selected areas of considerable scientific interest
Optimization of film synthesized rare earth transition metal permanent magnet systems. Progress report, August 1, 1991--July 31, 1992( )

4 editions published between 1990 and 1992 in English and held by 0 WorldCat member libraries worldwide

This report reviews work on the optimization of film synthesized rare earth transition metal permanent magnet systems. Topics include: high coercivity in Sm-Fe-Ti-V, Sm-Fe-V, and two element systems; ThMn₁₂ type pseudobinary SmFe{sub 12 - X}T{sub X}; and sputter process control for the synthesis of precisely textured RE-TM magnetic films. (JL)
Configuration space Faddeev calculations. Progress report, January 1, 1988--December 31, 1988( )

4 editions published between 1989 and 1994 in English and held by 0 WorldCat member libraries worldwide

The detailed study of few-body systems provides one of the most effective means for studying nuclear physics at subnucleon distance scales. For few-body systems the model equations can be solved numerically with errors less than the experimental uncertainties. We have used such systems to investigate the size of relativistic effects, the role of meson-exchange currents, and the importance of quark degrees of freedom in the nucleus. Complete calculations for momentum-dependent potentials have been performed, and the properties of the three-body bound state for these potentials have been studied. Few-body calculations of the electromagnetic form factors of the deuteron and pion have been carried out using a front-form formulation of relativistic quantum mechanics. The decomposition of the operators transforming convariantly under the Poincare group into kinematical and dynamical parts has been studies. New ways for constructing interactions between particles, as well as interactions which lead to the production of particles, have been constructed in the context of a relativistic quantum mechanics. To compute scattering amplitudes in a nonperturbative way, classes of operators have been generated out of which the phase operator may be constructed. Finally, we have worked out procedures for computing Clebsch-Gordan and Racah coefficients on a computer, as well as giving procedures for dealing with the multiplicity problem
Supported organometallic complexes : Surface chemistry, spectroscopy, and catalysis( )

4 editions published between 1990 and 1992 in English and held by 0 WorldCat member libraries worldwide

The long-range goal of this project is to elucidate and understand the surface chemistry and catalytic properties of well-defined, highly-reactive organometallic molecules (principally based upon abundant actinide, lanthanide, and early transition elements) adsorbed on metal oxides and halides. The nature of the adsorbed species is probed by a battery of chemical and physicochemical techniques, to understand the nature of the molecular-surface coordination chemistry and how this can give rise to extremely high catalytic activity. A complementary objective is to delineate the scope and mechanisms of the heterogeneous catalytic reactions, as well as to relate them both conceptually and functionally to model systems generated in solution
Sensitivity of climate models : Comparison of simulated and observed patterns for past climates. Progress report, February 1, 1994--January 31, 1995( )

5 editions published between 1991 and 1994 in English and held by 0 WorldCat member libraries worldwide

Predicting the potential climatic effects of increased concentrations of atmospheric carbon dioxide requires the continuing development of climate models. Confidence in the predictions will be much enhanced once the models are thoroughly tested in terms of their ability to simulate climates that differ significantly from today's climate. As one index of the magnitude of past climate change, the global mean temperature increase during the past 18,000 years is similar to that predicted for carbon dioxide--doubling. Simulating the climatic changes of the past 18,000 years, as well as the warmer-than-present climate of 6000 years ago and the climate of the last interglacial, around 126,000 years ago, provides an excellent opportunity to test the models that are being used in global climate change research. During the past several years, we have used paleoclimatic data to test the accuracy of the National Center for Atmospheric Research, Community Climate Model, Version 0, after changing its boundary conditions to those appropriate for past climates. We have assembled regional and near-global paleoclimatic data sets of pollen, lake level, and marine plankton data and calibrated many of the data in terms of climatic variables. We have also developed methods that permit direct quantitative comparisons between the data and model results. Our research has shown that comparing the model results with the data is an evolutionary process, because the models, the data, and the methods for comparison are continually being improved. During 1992, we have completed new modeling experiments, further analyzed previous model experiments, compiled new paleodata, made new comparisons between data and model results, and participated in workshops on paleoclimatic modeling
In vivo mutagenicity and clastogenicity of ionizing radiation in nuclear medicine. Final performance report, January 1, 1989--December 31, 1991( )

6 editions published between 1989 and 1991 in English and held by 0 WorldCat member libraries worldwide

The overall goal of our research was to investigate the mutagenic and clastogenic effects of exposure to low levels of ionizing radiation to human lymphocytes. Principally, we studied hospital patients referred to a nuclear medicine department for diagnostic cardiac imaging and nuclear medicine technologists who administer radionuclides. Emphasis in the first year, as described in the first progress report, was on optimization of the hprt mutation assay, measurement of mutant frequencies in patients imaged with thallium-201, and measurement of mutant frequencies in controls. Emphasis in the second and third years was on measurements of: (1) chromosome aberrations in patients imaged with thallium-201; (2) mutant frequencies in patients imaged with technetium-99; (3) mutant frequencies in nuclear medicine technicians and physical therapists; and (4) mutant frequencies in patients treated for Hodgkins disease with radiotherapy. The completed work has been published and is described below in more detail
Reactions of metal ions and their clusters in the gas phase using laser ionization : Fourier transform mass spectrometry. Progress report, February 1, 1992--January 31, 1993( )

4 editions published between 1990 and 1992 in English and held by 0 WorldCat member libraries worldwide

This report focuses on three areas we have made substantial new progress in over the past several months: (1) Infrared multiphoton photoinduced ion molecule reactions; (2) The use of SF₆ to detect excited state metal ion behavior; and (3) Cluster ion chemistry
Study of intermediates from transition metal excited-state electron-transfer reactions. Progress report, August 1, 1989--December 31, 1991( )

4 editions published between 1991 and 1992 in English and held by 0 WorldCat member libraries worldwide

During this period, conventional and fast-kinetics techniques of photochemistry, photophysics, radiation chemistry, and electrochemistry were used for the characterization of the intermediates that are involved in transition metal excited-state electron-transfer reactions. The intermediates of interest were the excited states of Ru(II) and Cr(III) photosensitizers, their reduced forms, and the species formed in the reactions of redox quenchers and electron-transfer agents. Of particular concern has been the back electron-transfer reaction between the geminate pair formed in the redox quenching of the photosensitizers, and the dependence of its rate on solution medium and temperature in competition with transformation and cage escape processes
Research in heavy-ion nuclear physics. Annual progress report, May 1, 1991--April 30, 1992( )

4 editions published in 1992 in English and held by 0 WorldCat member libraries worldwide

Attention was focused on the fission process in light nuclear systems. A model calculation based on the transition-state model of nuclear fission was applied to ⁴⁷V fission as populated through multiple entrance channels and to fusion-fission cross sections for production of ²⁸Al through three different entrance channels. Angular distributions are shown for different mass channels of the ²⁹Si+²⁷Al reaction at E{sub lab} = 125 MeV. Pronounced structure is seen in the symmetric and near-symmetric fission channels from the ²⁴Mg+²⁴Mg reaction; cross sections for binary fragment emission are shown for E{sub lab} = 90 MeV. A large Bragg-curve detector was used in this experiment. Ways to optimize detector response were studied; in addition, the Bragg detector was instrumented with an internal position-sensitive multiwire proportional counter
The Radiological Research Accelerator Facility. Progress report, December 1, 1992--November 30, 1993( )

5 editions published between 1992 and 1994 in English and held by 0 WorldCat member libraries worldwide

This document begins with a general description of the facility to include historical and up-to-date aspects of design and operation. A user's guide and a review of research using the facility follows. Next the accelerator utilization and operation and the development of the facilities is given. Personnel currently working at the facility are listed. Lastly, recent publications and literature cited are presented
New techniques for positron emission tomography in the study of human neurological disorders. Progress report, June 1990--June 1993( )

4 editions published between 1992 and 1993 in English and held by 0 WorldCat member libraries worldwide

The general goals of the physics and kinetic modeling projects are to: (1) improve the quantitative information extractable from PET images, and (2) develop, implement and optimize tracer kinetic models for new PET neurotransmitter/receptor ligands aided by computer simulations. Work towards improving PET quantification has included projects evaluating: (1) iterative reconstruction algorithms using supplemental boundary information, (2) automated registration of dynamic PET emission and transmission data using sinogram edge detection, and (3) automated registration of multiple subjects to a common coordinate system, including the use of non-linear warping methods. Simulation routines have been developed providing more accurate representation of data generated from neurotransmitter/receptor studies. Routines consider data generated from complex compartmental models, high or low specific activity administrations, non-specific binding, pre- or post-injection of cold or competing ligands, temporal resolution of the data, and radiolabeled metabolites. Computer simulations and human PET studies have been performed to optimize kinetic models for four new neurotransmitter/receptor ligands, [¹¹C]TRB (muscarinic), [¹¹C]flumazenil (benzodiazepine), [¹⁸F]GBR12909, (dopamine), and [¹¹C]NMPB (muscarinic)
Progress report by Mo.) Washington University (Saint Louis( )

64 editions published between 1989 and 1995 in English and held by 0 WorldCat member libraries worldwide

We wish to address the question of whether iron plays a regulatory role in the Bradyrhizobium japonicum/soybeam symbiosis. Iron may be an important regulatory signal in planta as the bacteria must acquire iron from their plant hosts and iron-containing proteins figure prominently in all nitrogen-fixing symbioses. For example, the bacterial partner is believed to synthesize the heme moiety of leghemoglobin, which may represent as much as 25--30% of the total soluble protein in an infected plant cell. For this reason, we have focused our attention on the regulation by iron of the first step in the bacterial heme biosynthetic pathway. The enzyme which catalyzes this step, 5-aminolevulinic acid synthase, is encoded by the hemA gene which we had previously cloned and sequenced. Specific objectives include: to define the cis-acting sequences which confer iron regulation on the B. japonicum hemA gene; to identify trans-acting factors which regulate the expression of hemA by iron; to identify new loci which are transcriptionally responsive to changes in iron availability; and to examine the effects of mutations in various known regulatory genes for their effect on the expression of hemA
A remote telepresence robotic system for inspection and maintenance of a nuclear power plant( )

4 editions published between 1991 and 1993 in English and held by 0 WorldCat member libraries worldwide

This annual report details the activities of the University of Florida research on the robotic system for inspection and maintenance of nuclear power plants. (FI)
Studies in premixed combustion. Annual progress report, November 1, 1992--October 31, 1993( )

4 editions published between 1992 and 1993 in English and held by 0 WorldCat member libraries worldwide

This report discusses the following topics on premixed combustion: theory of turbulent flame propagation; pattern formation in premixed flames and related problems; and pattern formation in extended systems. (LSP)
Studies of yrast and continuum states in A = 100--200 nuclei( )

4 editions published between 1992 and 1993 in English and held by 0 WorldCat member libraries worldwide

This report summarizes progress in nuclear structure research for the year 1991. The highlights include new spectroscopic results for neutron excessive nuclei (around ¹²⁴Sn and ³⁶S) formed in deep inelastic heavy ion reactions
Macrostatistical hydrodynamics( )

5 editions published between 1992 and 1994 in English and held by 0 WorldCat member libraries worldwide

During the course of these efforts we have been studying suspension of particles in Newtonian and non-Newtonian liquids, embodying a combination of analysis, experiments, and numerical simulations. Experiments primarily involved tracking small balls as they fall slowly through otherwise quiescent suspensions of neutrally buoyant particles. Detailed trajectories of the balls, obtained either with new experimental techniques or by numerical simulation, were statistically interpreted in terms of the mean settling velocity and the dispersion about the mean. We showed that falling-ball rheometry, using small balls relative to the suspended particles, could be a means of measuring the macroscopic zero-shear-rate viscosity without significantly disturbing the original microstructure; therefore, falling-ball rheometry can be a powerful tool for use in studying the effects of microstructures on the macroscopic properties of suspensions. We plan to extend this work to the study of more complex, structured fluids, and to use other tools (e.g., rolling-ball rheometry) to study boundary effects. We also propose to study flowing suspensions to obtain non-zero-shear-rate viscosities. The intent is to develop an understanding of the basic principles needed to treat generic multiphase flow problems, through a detailed study of model systems. 8 refs
 
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Alternative Names

controlled identityUnited States. Department of Energy

United States. Department of Energy. Chicago Operations and Regional Office

United States. Dept. of Energy. Chicago Operations Office

Languages
English (180)