WorldCat Identities

United States Department of Energy Assistant Secretary for Human Resources and Administration

Works: 739 works in 776 publications in 1 language and 2,864 library holdings
Genres: Telephone directories  Handbooks, manuals, etc 
Roles: Sponsor, Researcher
Classifications: HD9502.U52,
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Most widely held works by United States
How private customers and nonfederal governments obtain technical resources and skills --from the U.S. Department of Energy ( Book )
2 editions published in 1996 in English and held by 167 WorldCat member libraries worldwide
U.S. Department of Energy national telephone directory by United States ( )
in English and held by 141 WorldCat member libraries worldwide
FIRETEC a transport description of wildfire behavior ( )
5 editions published in 1997 in English and held by 20 WorldCat member libraries worldwide
A 9-antenna, 400 meter microwave interferometer was utilized in SALSA MEX on the San Pedro River area in July and August, 1997, to measure the turbulence in the Convective Boundary Layer. Water vapor has an appreciable index of refraction at radio frequencies around 10 GHz, and acts as a passive tracer of the magnitude and motion of turbulence. The relative phase changes of a signal from a satellite were tracked by an array of 9 antennas, and the phase differences between antennas were then used to derive the turbulence properties of the boundary layer. Preliminary analysis shows clearly different characteristics for the convection activity of the boundary layer between day and night. From the structure function analysis they can see that the turbulence structure starts to decorrelate at scale sizes of 200 meters for a temporal passband around 100 seconds. Derivation of average wind fields is currently in process
Structural health monitoring of wind turbines ( )
3 editions published in 1997 in English and held by 12 WorldCat member libraries worldwide
This paper introduces a new toolbox of graphical-interface software algorithms for the numerical simulation of vibration tests, analysis of modal data, finite element model correlation, and the comparison of both linear and nonlinear damage identification techniques. This toolbox is unique because it contains several different vibration-based damage identification algorithms, categorized as those which use only measured response and sensor location information ({open_quotes}non-model-based{close_quotes} techniques) and those which use finite element model correlation ({open_quotes}model-based{close_quotes} techniques). Another unique feature of this toolbox is the wide range of algorithms for experimental modal analysis. The toolbox also contains a unique capability that utilizes the measured coherence functions and Monte Carlo analysis to perform statistical uncertainty analysis on the modal correlation capabilities of toolbox, and also shows a sample application which uses the toolbox to analyze the statistical uncertainties on the results of a series of modal tests performed on a highway bridge
Computing n-dimensional volumes of complexes Application to constructive entropy bounds ( )
3 editions published in 1997 in English and held by 12 WorldCat member libraries worldwide
Constructive bounds on the needed number-of-bits (entropy) for solving a dichotomy problem can be represented by a quotient of two volumes of multidimensional solids. Exact methods for the calculation of these volumes are presented. They lead to a tighter lower bound on the needed number-of-bits than the ones previously known
Verification of classified fissile material using unclassified attributes ( )
4 editions published in 1998 in English and held by 10 WorldCat member libraries worldwide
Five sites in the Department of Energy (DOE) nuclear complex have significant amounts of plutonium residues. The DOE has begun programs for stabilization of these materials, but the existing facilities, infrastructure, and technical capacity are inadequate for the task. Additionally, sufficient funding is not available to enable all the facilities to meet current standards that are required for the facilities to be able to treat the residues. At the request of the DOE Office of Environmental Management, a team was assembled to study the feasibility of using modular systems to stabilize plutonium-bearing residues. This feasibility team prepared a basis document using typical residue profiles and fact sheets that documented treatment activities and operational programs that were required. From this basis document, a design team prepared a preconceptual design and a cost and schedule estimate for a stand-alone modular system to treat the residues. The modular treatment system was designed to be broken into functional units (modules) that are individually packaged and portable. These modules were designed to consider all operational phases including safeguards and security. This discussion will present the safeguards and security considerations and techniques that were identified for the modular treatment system
Employee handbook by United States ( )
in English and held by 9 WorldCat member libraries worldwide
The galactic dynamo, the helical force free field and the emissions of AGN ( )
2 editions published in 1997 in English and held by 9 WorldCat member libraries worldwide
We present a theory relating the central galactic black hole (BH) formation to the galactic dynamo through an accretion disk. The associated AGN emissions and the collimated radio sources are then a result of the dynamo process. A unified theory of quasar and BL-Lac formation (hereafter AGN) starts with the collapse of damped Lyman-alpha clouds, presumably proto-galaxies, which then evolve to a central disk and black hole, (BH). An alpha - omega dynamo forms in this accretion disk where the augmentation of the poloidal field from the toroidal field depends upon star disk collisions. The winding number of the inner most orbit of the disk is so large, tilde 10 to the 11th power that the total gain of the dynamo is semi-infinite, and the original seed field of no consequence. The total magnetic flux produced is tilde 10000 times that of the galaxy, sufficient to explain the much larger flux of clusters. The semi-infinite gain of the dynamo implies that the field saturates at the dynamic stress so that most of the free energy of formation of the BH is carried off as magnetic energy in the form of a magnetic helix. The dissipation of this magnetic energy leads to the unique emission spectrum of AGN as well as the equally startling collimated radio and optical sources
Comparison of a diagnostic wildfire modeling system (HIGRAD ( )
2 editions published in 1998 in English and held by 8 WorldCat member libraries worldwide
Recent advances in numerical modeling and computer power have made it feasible to simulate the dynamical interaction and feedback between the heat and turbulence induced by wildfires and the local atmospheric wind and temperature fields. At Los Alamos National Laboratory, the authors have developed a modeling system that includes this interaction by coupling a high resolution atmospheric dynamics model, HIGRAD, with a fire behavior model, BEHAVE, to predict the spread of wildfires. The HIGRAD/BEHAVE model is run at very high resolution to properly resolve the fire/atmosphere interaction. At present, these coupled wildfire model simulations are computationally intensive. The additional complexity of these models require sophisticated methods for assuring their reliability in real world applications. With this in mind, a substantial part of the research effort is directed at model validation. Several instrumented prescribed fires have been conducted with multi-agency support and participation from chaparral, marsh, and scrub environments in coastal areas of Florida and inland California. In this paper, the authors first describe the data required to initialize the components of the wildfire modeling system. Then they present results from one of the Florida fires, and discuss a strategy for further testing and improvement of coupled weather/wildfire models
FB-line neutron multiplicity counter operation manual ( )
2 editions published between 1997 and 1998 in English and held by 8 WorldCat member libraries worldwide
This manual describes the design features, performance, and operating characteristics for the FB-Line Neutron Multiplicity Counter (FBLNMC). The FBLNMC counts neutron multiplicities to quantitatively assay plutonium in many forms, including impure scrap and waste. Monte Carlo neutronic calculations were used to design the high-efficiency (57%) detector that has 113 ³H tubes in a high-density polyethylene body. The new derandomizer circuit is included in the design to reduce deadtime. The FBLNMC can be applied to plutonium masses in the range from a few tens of grams to 5 kg; both conventional coincidence counting and multiplicity counting can be used as appropriate. This manual gives the performance data and preliminary calibration parameters for the FBLNMC
Survey of plutonium and uranium atom ratios and activity levels in Mortandad Canyon ( )
2 editions published in 1997 in English and held by 8 WorldCat member libraries worldwide
For more than three decades Mortandad Canyon has been the primary release area of treated liquid radioactive waste from the Los Alamos National Laboratory (Laboratory). In this survey, six water samples and seven stream sediment samples collected in Mortandad Canyon were analyzed by thermal ionization mass spectrometry (TIMS) to determine the plutonium and uranium activity levels and atom ratios. Be measuring the ²⁴°Pu/²³⁹Pu atom ratios, the Laboratory plutonium component was evaluated relative to that from global fallout. Measurements of the relative abundance of ²³⁵U and ²³⁶U were also used to identify non-natural components. The survey results indicate the Laboratory plutonium and uranium concentrations in waters and sediments decrease relatively rapidly with distance downstream from the major industrial sources. Plutonium concentrations in shallow alluvial groundwater decrease by approximately 1000 fold along a 3000 ft distance. At the Laboratory downstream boundary, total plutonium and uranium concentrations were generally within regional background ranges previously reported. Laboratory derived plutonium is readily distinguished from global fallout in on-site waters and sediments. The isotopic ratio data indicates off-site migration of trace levels of Laboratory plutonium in stream sediments to distances approximately two miles downstream of the Laboratory boundary
In-situ monitoring of etch by-products during reactive ion beam etching of GaAs in chlorine ( )
2 editions published in 1997 in English and held by 8 WorldCat member libraries worldwide
The oxidative dehydrogenation (ODH) reactions for the formation of two important organic feedstocks ethylene and propylene are of great interest because of the potential in capital and energy savings associated with these reactions. Theoretically, ODH can achieve high conversions of the starting materials (ethane and propane) at lower temperatures than conventional dehydrogenation reactions. The important focus in this study of ODH catalysts is the development of a structure-property relationship for catalyst with respect to selectivity, so as to avoid the more thermodynamically favorable combustion reaction. Catalysts for the ODH reaction generally consist of mixed metal oxides. Since for the most selective catalyst lattice oxygen is known to participate in the reaction, catalysts are sought with surface oxygen atoms that are labile enough to perform dehydrogenation, but not so plentiful or weakly bound as to promote complete combustion. Also, catalysts must be able to replenish surface oxygen by transport from the bulk. Perovskite materials are candidates to fulfill these requirements. The authors are studying BaCeO₃ perovskites doped with elements such as Ca, Mg, and Sr. During the ODH of the alkanes at high temperatures, the perovskite structure is not retained and a mixture of carbonates and oxides is formed, as revealed by XRD. While the Ca doped materials showed enhanced total combustion activity below 600 C, they only showed enhanced alkene production at 700 C. Bulk structural and surface changes, as monitored by powder X-ray diffraction, and X-ray photoelectron spectroscopy are being correlated with activity in order to understand the factors affecting catalyst performance, and to modify catalyst formulations to improve conversion and selectivity
Measurement of high energy neutrons via Lu(n, xn) reactions ( )
2 editions published in 1997 in English and held by 8 WorldCat member libraries worldwide
A thermal-hydraulic (T-H) analysis is conducted to determine the feasibility and limitations of a water-cooled tungsten-rod target at powers of 1 MW and above. The target evaluated has a 10-cm x 10-cm cross section perpendicular to the beam axis, which is typical of an experimental spallation neutron source - both for a short-pulse spallation source and long-pulse spallation source. This report describes the T-H model and assumptions that are used to evaluate the target. A 1-MW baseline target is examined, and the results indicate that this target should easily handle the T-H requirements. The possibility of operating at powers>1 MW is also examined. The T-H design is limited by the condition that the coolant does not boil (actual limits are on surface subcooling and wall heat flux); material temperature limits are not approached. Three possible methods of enhancing the target power capability are presented: reducing peak power density, altering pin dimensions, and improving coolant conditions (pressure and temperature). Based on simple calculations, it appears that this target concept should have little trouble reaching the 2-MW range (from a purely T-H standpoint), and possibly much higher powers. However, one must keep in mind that these conclusions are based solely on thermal-hydraulics. It is possible, and perhaps likely, that target performance could be limited by structural issues at higher powers, particularly for a short-pulse spallation source because of thermal shock issues
In-field use of laser Doppler vibrometer on a wind turbine blade ( )
2 editions published in 1997 in English and held by 8 WorldCat member libraries worldwide
Wind-energy researchers at Sandia National Laboratories (SNL) and the National Renewable Energy Laboratory (NREL) are developing a new, light-weight, modular system capable of acquiring long-term, continuous time-series data from current-generation small or large, dynamic wind-turbine rotors. Meetings with wind-turbine research personnel at NREL and SNL resulted in a list of the major requirements that the system must meet. Initial attempts to locate a commercial system that could meet all of these requirements were not successful, but some commercially available data acquisition and radio/modem subsystems that met many of the requirements were identified. A time synchronization subsystem and a programmable logic device subsystem to integrate the functions of the data acquisition, the radio/modem, and the time synchronization subsystems and to communicate with the user have been developed at SNL. This paper presents the data system requirements, describes the four major subsystems comprising the system, summarizes the current status of the system, and presents the current plans for near-term development of hardware and software
Problem decomposition and domain-based parallelism via group theoretic principles ( )
2 editions published in 1997 in English and held by 8 WorldCat member libraries worldwide
This paper provides an overview of coupled reactor physics and thermal-hydraulics computations with the SAS-DIF3DK computer code. The assumptions and capabilities of the DIF3D-K nodal diffusion theory spatial kinetics model are presented. Results from DIF3D-K benchmark verification calculations are reported. SAS thermal-hydraulics model assumptions and features are described, and results from a prototypic application are shown. The details of data flow in the coupling of spatial kinetics with thermal-hydraulics are reviewed, and coupled applications are described. Future model developments are listed
Beta reduction factors for protective clothing at the Oak Ridge National Laboratory ( )
2 editions published between 1997 and 1998 in English and held by 8 WorldCat member libraries worldwide
Beta reduction factors (f{sub {beta}}) for protective clothing (PC) at the Oak Ridge National Laboratory (ORNL) have been determined for a variety of protective clothing combinations. Data was collected to determine the experimental f{sub {beta}} for several combinations of PCs under laboratory conditions. Radiation dose rates were measured with an open window Bicron{reg_sign} RSO-5 ion chamber for two distinct beta energy groups (E{sub max} = 1.218 x 10⁻¹³ J(0.860 MeV) and 3.653 x 10⁻¹³ J (2.280 MeV)). Data points determined, as the ratio of unattenuated (no PCs) to attenuated (PCs), were used to derive a set of equations using the Microsoft{reg_sign} Excel Linet function. Field comparison tests were then conducted to determine the validity of these beta reduction factors. The f{sub {beta}} from the field tests were significantly less than the experimental f{sub {beta}}, indicating that these factors will yield conservative results
Fuel-cycle energy and emissions impacts of tripled fuel-economy vehicles ( )
2 editions published in 1998 in English and held by 8 WorldCat member libraries worldwide
This paper presents an assessment of the capital requirements of using six different fuels in the vehicles with tripled fuel economy (3X vehicles) that the Partnership for a new Generation of Vehicles is currently investigating. The six fuels include two petroleum-based fuels (reformulated gasoline and low-sulfur diesel) and four alternative fuels (methanol, ethanol, dimethyl ether, and hydrogen). This study develops estimates of cumulative capital needs for establishing fuels production and distribution infrastructure to accommodate 3X vehicle fuel needs. Two levels of fuel volume-70,000 barrels per day and 1.6 million barrels per day-were established for meeting 3X-vehicle fuel demand. As expected, infrastructure capital needs for the high fuel demand level are much higher than for the low fuel demand level. Between fuel production infrastructure and distribution infrastructure, capital needs for the former far exceed those for the latter. Among the four alternative fuels, hydrogen bears the largest capital needs for production and distribution infrastructure
Water-line design and performance of Z ( )
2 editions published in 1997 in English and held by 7 WorldCat member libraries worldwide
The Hydrodynamic and X-Ray Physics Group (P-22) at Los Alamos National Laboratory has developed hardware, software, and procedures to work with explosively driven high current generators to obtain time resolved data. Data recording in this physically and electrically harsh environment requires special equipment, techniques, and processes. There are three distinct areas of consideration to record this class of data. First is the explosive shot pad area, second is bunker area, and third is the data handling and documentation considerations. It is well within the capability of P-22 to provide 100 to 200 data recording channels and to provide 50 to 100 fiber optic data paths to the recording area. The equipment has high frequency bandwidths from 20 MHz to 500 MHz. This work has been conducted in various sites in the United States and Russia. The work in Russia presents a particular challenge in the areas of planning for the change in AC power voltage and frequency, different coaxial and connector systems, making sure all components and spare equipment are included in the equipment shipped before the experiment
Development of ceramic superconductors for electric power applications ( )
2 editions published in 1997 in English and held by 7 WorldCat member libraries worldwide
A glass that has been tested to understand the corrosion behavior of waste glasses with high soda contents for immobilizing Hanford incidental wastes has been made by melting crushed glass with either TcO₂ or NaTcO₄ at 1,100--1,300 C. Incorporation of technetium in the glass was affected by solubility or kinetic effects. Metallic technetium inclusions formed in all the TcO₂-doped glasses. Inclusions also formed in glasses with added NaTcO₄ that were melted at 1,100 C, but a glass melted at 1,200 C did not contain detectable inclusions. The presence of Tc-bearing inclusions complicates the interpretation of results from dissolution tests because of the simultaneous release of technetium from more than one phase, the unknown surface areas of each phase, and the possible incorporation of technetium that is released from one phase into another phase. A glass containing about 0.15 mass % Tc dissolved in the glass is being used in dissolution tests to study the release behavior of technetium
Turbulence and turbulence spectra in complex fluid flows ( )
1 edition published in 1997 in English and held by 5 WorldCat member libraries worldwide
This is the final report of a three-year, Laboratory Directed Research and Development (LDRD) project at Los Alamos National Laboratory (LANL). Our objective was to develop a theoretical model of fluid turbulence in parallel with a series of direct numerical simulations of increasingly complex test environments to establish limits of error and regimes of applicability, and to guide improvements. The aim is to produce methods of tested accuracy, with tractable numerical approximations, for turbulent fluids of constant density, and then for variable densities and multimaterial flows. We proceed from a recent spectral model that describes turbulent energy and stress densities in terms of a range of length scales. This should lead not only to improved engineering models, but also to a basic conceptual improvement because the spectral approach accounts for the variation of evolution rates with turbulence length scales
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Alternative Names

controlled identity United States. Department of Energy

controlled identity United States. Department of Energy. Office of Administration and Human Resource Management

United States. Assistant Secretary of Energy for Human Resources and Administration
United States. Department of Energy. Office of Human Resources and Administration
United States. Dept. of Energy. Assistant Secretary for Human Resources and Administration
English (49)