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United States Department of Energy Chicago Operations Office

Overview
Works: 7,767 works in 8,741 publications in 1 language and 32,403 library holdings
Genres: Directories 
Roles: Researcher, Sponsor
Classifications: QC911, 697.78
Publication Timeline
Key
Publications about United States
Publications by United States
Most widely held works by United States
Solar radiation data forecast and interpolation analysis by John Woo( Book )
4 editions published in 1979 in English and held by 72 libraries worldwide
Final technical report for heat pipe central solar receiver by Walter B Bienert( Book )
in English and held by 71 libraries worldwide
The passive and hybrid solar energy program ( Book )
2 editions published in 1980 in English and held by 39 libraries worldwide
In vivo mutagenicity and clastogenicity of ionizing radiation in nuclear medicine. Annual technical progress report, [1991] ( file )
6 editions published between 1989 and 1991 in English and held by 0 libraries worldwide
The overall goals of our research remains to investigate the mutagenic and clastogenic effects of exposure to low levels of ionizing radiation in human lymphocytes. We are studying hospital patients referred to a nuclear medicine department for diagnostic cardiac imaging and nuclear medicine technologists who administer radionuclides
Participation of the Pennsylvania State University in the MAP3S precipitation chemistry network ( file )
4 editions published between 1991 and 1992 in English and held by 0 libraries worldwide
Precipitation in central Pennsylvania was collected for more than 14 years on behalf of the Multistate Atmospheric Power Production Pollution Study (MAP3S). The MAP3S protocol, based on the sampling of precipitation from individual meteorological events over a long period of time, has allowed both for the development of a chemical climatology of precipitation in the eastern region of the United States and for a vastly improved understanding of the atmospheric processes responsible for wet acidic deposition. The precipitation chemistry data from the Penn State MAP3S site provide evidence of links to the anthropogenic emissions of sulfur dioxide and oxidant precursors. There is now little doubt that the free acidity in the precipitation of the region is due to the presence of unneutralized sulfate in the aqueous phase. In the absence of significant sources of this sulfur species and in view of supplemental enrichment studies, it is concluded that the sulfate enters cloud and rain water primarily through the aqueous-phase oxidation of sulfur dioxide emitted into the air within the geographical region of deposition. Within the source region the local abundances of sulfur dioxide often exceed those of the oxidants, so the depositions of sulfate and free acidity tend to be modulated by the availability of the strong oxidants. As a consequence, the deposition of sulfate exhibits a very strong seasonal dependence and little response to changes in the emissions of sulfur dioxide
[Molecular/polymeric magnetism]. Progress report ( file )
30 editions published between 1989 and 1995 in English and held by 0 libraries worldwide
We report progress in elucidating the microbiological variables important in determining the relative success of bacteria in utilizing soil-sorbed contaminants. Two bacterial species, Pseudomonas putida (ATCC 17484) and an Alcaligenes sp. isolated from petroleum contaminated soil are known to differ markedly in their ability to utilize soil-sorbed napthalene based on a kinetic comparison of their capability of naphthalene mineralization in soil-containing and soil-free systems. The kinetic analysis led us to conclude that strain 17484 had direct access to naphthalene present in a labile sorbed state which promoted the rapid desorption of naphthalene from the non-labile phase. Conversely, both the rate and extent of naphthalene mineralization by strain NP-Alk suggested that this organism had access only to naphthalene in solution. Desorption was thus limited and the efficiency of total naphthalene removal from these soil slurries was poor. These conclusions were based on the average activities of cells in soil slurries without regard for the disposition of the organisms with respect to the sorbent. Since both organisms degrade naphthalene by apparently identical biochemical pathways, have similar enzyme kinetic properties, and are both motile, gram negative organisms, we undertook a series of investigations to gain a better understanding of what microbiological properties were important in bioavailability
Studies in premixed combustion. Progress report, November 1, 1990--October 31, 1992 ( file )
4 editions published between 1992 and 1993 in English and held by 0 libraries worldwide
During the period under review, significant progress was been made in studying the intrinsic dynamics of premixed flames and the problems of flame-flow interaction. (1) A weakly nonlinear model for Bunsen burner stabilized flames was proposed and employed for the simulation of three-dimensional polyhedral flames -- one of the most graphic manifestations of thermal-diffusive instability in premixed combustion. (2) A high-precision large-scale numerical simulation of Bunsen burner tip structure was conducted. The results obtained supported the earlier conjecture that the tip opening observed in low Lewis number systems is a purely optical effect not involving either flame extinction or leakage of unburned fuel. (3) A one-dimensional model describing a reaction wave moving through a unidirectional periodic flow field is proposed and studied numerically. For long-wavelength fields the system exhibits a peculiar non-uniqueness of possible propagation regimes. The transition from one regime to another occurs in a manner of hysteresis
The Radiological Research Accelerator Facility ( file )
5 editions published between 1992 and 1994 in English and held by 0 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
Computer simulations for the adsorption of polymers onto surfaces. Annual technical progress report ( file )
4 editions published between 1992 and 1993 in English and held by 0 libraries worldwide
The objective is to develop theoretical models and computer simulations to examine the adsorption of polymers onto a variety of surfaces, and to understand how the chain architecture and conditions such as the surface or solvent affect the extent of adsorption and the morphology of the interfacial layers. Results obtained last year are summarized under the following headings: behavior of copolymers at a liquid-liquid interface, grafted homopolymer chains in a poor solvent, amphiphilic comb copolymers in oil/water solutions, modeling polymer adsorption onto influenza virus, and behavior of polymers in concentrated surfactant solutions. Plans for future work are also given. 17 refs. (DLC)
Macrostatistical hydrodynamics. Progress report, September 15, 1993--September 14, 1994 ( file )
5 editions published between 1992 and 1994 in English and held by 0 libraries worldwide
This research aims to correlate the macroscopic rheological behavior of suspensions with their statistical microstructure. This fundamental knowledge will benefit a host of technologies, including geothermal energy production, petroleum production and refining, and synfuels processing. The approach involves a novel combination of experiments, numerics, and theory. Experiments primarily involve 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, are statistically interpreted in terms of the mean settling velocity and the dispersion about the mean. Determining the mean settling velocity of balls that are small relative to the suspended particles is a means of measuring the macroscopic zero-shear-rate viscosity without significantly disturbing the original microstructure; therefore, falling-ball rheometry is a powerful tool for use in studying the effects of microstructure on the macroscopic properties of suspensions. The dispersion about the mean yields information about the particle interactions. To date, the mean and dispersivity of a falling sphere's velocity has been determined as a function of the tracer sphere size and the suspended particle size, shape, and concentration. Currently, the pressure drop caused by the falling ball is being measured also. This will provide a much needed benchmark problem for numerical studies, as well as provide another measure of the macroscopic response of a suspension as a function of its microstructure. Also begun recently are two studies of boundary effects in two-phase fluids: the determination of the torque on a small ball spinning in a suspension and the determination of the velocity of a small ball rolling down the wall of a container holding a suspension
Research in heavy-ion nuclear physics. Annual progress report, May 1, 1992--April 30, 1993 ( file )
4 editions published in 1992 in English and held by 0 libraries worldwide
This report discusses the following topics: Fusion-fission in light nuclear systems; High-resolution Q-value measurement for the ²⁴Mg+²⁴Mg reaction; Heavy-ion reactions and limits to fusion; and Hybrid MWPC-Bragg curve detector development
New techniques for positron emission tomography in the study of human neurological disorders ( file )
4 editions published between 1992 and 1993 in English and held by 0 libraries worldwide
This progress report describes accomplishments of four programs. The four programs are entitled (1) Faster, simpler processing of positron-computing precursors: New physicochemical approaches, (2) Novel solid phase reagents and methods to improve radiosynthesis and isotope production, (3) Quantitative evaluation of the extraction of information from PET images, and (4) Optimization of tracer kinetic methods for radioligand studies in PET
Mechanisms and controlling characteristics of the catalytic oxidation of methane. Progress report ( file )
4 editions published between 1990 and 1992 in English and held by 0 libraries worldwide
We have demonstrated in this work (1) that methane is readily activated at mild conditions (100°C, 1 torr) over a relatively noble metal, Pd. This was observed using a stepped and kinked Pd(679) crystal (1), and other crystal faces are now being investigated to establish whether the cracking of the C-H bond of methane on Pd is structure sensitive or structure insensitive. Oxygen chemisorption is extremely structure sensitive: weakly bonded, highly reactive oxygen overlayers form on Pd(100) surface (2), while strongly bonded, moderately reactive oxygen overlayers form on Pd(111) and Pd(679). Reaction of the weakly bonded oxygen with surface carbide gives rise to CO₂ over clean Pd(100) but to CO over halogen-doped Pd(100) (3--5). The effect of halogens is primarily ensemble-controlling, or oxygen-supply restricting, but long range influence of surface Cl on the strength of the Pd-O bond has also been observed (3). Because the overall chemistry of methane activation with the subsequent oxidation gives rise to the very important oxidative reforming CH₄ + 1/2 O₂ -->{sub Pd/Cl} CO + 2 H₂, Pd/Cl we plan to continue our study of this reaction in detail over Pd(100) (completed), Pd(111) (initiated), Pd(311) (initiated), Pd(110) (to be initiated), and Pd(679) (completed), without and with the halogen modifiers
Reactions of metal ions and their clusters in the gas phase using laser ionization--Fourier transform mass spectrometry. Progress report, February 1, 1990--January 31, 1991 ( file )
4 editions published between 1990 and 1992 in English and held by 0 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 ( file )
4 editions published between 1991 and 1992 in English and held by 0 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
Studies of yrast and continuum states in A 100--200 nuclei. Progress report for 1992 ( file )
4 editions published between 1992 and 1993 in English and held by 0 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
Configuration space Faddeev calculations. Progress report, 1 November 1992--31 October 1993 ( file )
4 editions published between 1989 and 1994 in English and held by 0 libraries worldwide
The detailed study of few-body systems provides one of the most precise tools for studying the dynamics of nuclei and nucleons. This research program consists of a careful theoretical study of few-body systems and methods for modeling these systems. Brief summaries are given on several aspects of this program including the following: the use of configuration-space Faddeev equations to solve the proton-deuteron scattering problem with long-range Coulomb interactions; calculations of the triton binding energy; inclusion of dynamical vacuum structures in Hamiltonian light-front dynamics; constraints in Bethe-Salpeter models; signature of quantum chaos; applications of point form relativistic quantum mechanics collective nuclear models and the symplectic group Sp (6,R); and anharmonic oscillators and quantum mechanics systems in nonconstant magnetic fields
Optimization of film synthesized rare earth transition metal permanent magnet systems. Progress report, August 1, 1989--July 1990 ( file )
4 editions published between 1990 and 1992 in English and held by 0 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)
Sensitivity of climate models Comparison of simulated and observed patterns for past climates. Progress report, February 1, 1992--January 31, 1993 ( file )
5 editions published between 1991 and 1994 in English and held by 0 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
Supported organometallic complexes Surface chemistry, spectroscopy, and catalysis. Progress report, February 1, 1991--January 31, 1992 ( file )
4 editions published between 1990 and 1992 in English and held by 0 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
 
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controlled identity United States. Department of Energy

United States. Department of Energy. Chicago Operations and Regional Office
United States. Dept. of Energy. Chicago Operations Office
Languages
English (112)
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