WorldCat Identities

United States Department of Energy Office of the Assistant Secretary, Management and Administration

Overview
Works: 450 works in 479 publications in 1 language and 2,237 library holdings
Genres: History  Telephone directories  Popular works 
Roles: Sponsor, Researcher
Classifications: QC773.3.U5, 621.4830973
Publication Timeline
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Most widely held works by United States
The First reactor : 40th anniversary( Book )

5 editions published between 1967 and 1982 in English and held by 111 WorldCat member libraries worldwide

Federal employee occupational safety & health program a personal handbook for employees by United States( Book )

2 editions published in 1989 in English and held by 93 WorldCat member libraries worldwide

Department of Energy management improvement report by United States( Book )

3 editions published in 1988 in English and held by 78 WorldCat member libraries worldwide

Headquarters DOE telephone directory by United States( )

in English and held by 70 WorldCat member libraries worldwide

FY 1991--FY 1995 Information technology resources long-range plan( Book )

2 editions published in 1989 in English and held by 2 WorldCat member libraries worldwide

The Department of Energy has consolidated its plans for Information Systems, Computing Resources, and Telecommunications into a single document, the Information Technology Resources Long-Range Plan. The consolidation was done as a joint effort by the Office of ADP Management and the Office of Computer Services and Telecommunications Management under the Deputy Assistant Secretary for Administration, Information, and Facilities Management. This Plan is the product of a long-range planning process used to project both future information technology requirements and the resources necessary to meet those requirements. It encompasses the plans of the various organizational components within the Department and its management and operating contractors over the next 5 fiscal years, 1991 through 1995
Can model updating tell the truth?( )

2 editions published in 1998 in English and held by 0 WorldCat member libraries worldwide

This paper presents a comparison of two techniques used to estimate the statistical confidence intervals on modal parameters identified from measured vibration data. The first technique is Monte Carlo simulation, which involves the repeated simulation of random data sets based on the statistics of the measured data and an assumed distribution of the variability in the measured data. A standard modal identification procedure is repeatedly applied to the randomly perturbed data sets to form a statistical distribution on the identified modal parameters. The second technique is the Bootstrap approach, where individual Frequency Response Function (FRF) measurements are randomly selected with replacement to form an ensemble average. This procedure, in effect, randomly weights the various FRF measurements. These weighted averages of the FRFs are then put through the modal identification procedure. The modal parameters identified from each randomly weighted data set are then used to define a statistical distribution for these parameters. The basic difference in the two techniques is that the Monte Carlo technique requires the assumption on the form of the distribution of the variability in the measured data, while the bootstrap technique does not. Also, the Monte Carlo technique can only estimate random errors, while the bootstrap statistics represent both random and bias (systematic) variability such as that arising from changing environmental conditions. However, the bootstrap technique requires that every frequency response function be saved for each average during the data acquisition process. Neither method can account for bias introduced during the estimation of the FRFs. This study has been motivated by a program to develop vibration-based damage identification procedures
Performance analysis of multidimensional wavefront algorithms with application to deterministic particle transport( )

4 editions published in 1998 in English and held by 0 WorldCat member libraries worldwide

When the National Environmental Policy Act (NEPA) was enacted in 1969, neither Congress nor the Federal Agencies affected anticipated that implementation of the NEPA process would result in the intolerable delays, inefficiencies, duplication of effort, commitments of excessive financial and personnel resources, and bureaucratic gridlock that have become institutionalized. The 1975 Council on Environmental Quality (CEQ) regulations, which were intended to make the NEPA process more efficient and more useful to decision makers and the public, have either been largely ignored or unintentionally subverted. Agency policy mandates, like those of former Secretary of Energy Hazel R. O'Leary, to ''make NEPA work better and cost less'' have, so far, been disappointingly ineffectual. Federal Agencies have reached the point where almost every constituent of the NEPA process must be subjected to crisis management. This paper focuses on a ten-point strategy for streamlining the NEPA process in order to achieve the Act's objectives while easing the considerable burden on agencies, the public, and the judicial system. How the ten points are timed and implemented is critical to any successful streamlining
Chemical sensing system for classification of mine-like objects by explosives detection( )

3 editions published in 1998 in English and held by 0 WorldCat member libraries worldwide

An experimental free-space quantum key distribution (QKD) system has been tested over an outdoor optical path of (approximately) 1 km under nighttime conditions at Los Alamos National Laboratory. This system employs the Bennett 92 protocol; in this paper, the authors give a brief overview of this protocol, and describe the experimental implementation of it. An analysis of the system efficiency is presented, as well as a description of the error detection protocol which employs a two-dimensional parity check scheme. Finally, the susceptibility of this system to eavesdropping by various techniques is determined, and the effectiveness of privacy amplification procedures is discussed. The conclusions are that free-space QKD is both effective and secure; possible applications include the rekeying of satellites in low earth orbit
Solar oscillation frequency and solar neutrino predictions( )

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

Future rf-linac-driven FELs, operating in the range from 4 nm to 100 nm, could be excellent exposure tools for extending the resolution limit of projection optical lithography to ≤0.1 [mu]m and with adequate total depth of focus (1 to 2 [mu]m). When operated at a moderate duty rate of ≥1%, XUV FELs should be able to supply sufficient average power to support high-volume chip production. Recent developments of the electron beam, magnetic undulator, and resonator mirrors are described which raise our expectation that FEL operation below 100 nm is almost ready for demonstration. Included as a supplement is a review of initial design studies of the reflecting XUV projection optics, fabrication of reflection masks, characterization of photoresists, and the first experimental demonstrations of the capability of projection lithography with 14-nm radiation to produce lines and spaces as small as 0.05 [mu]m. 88 refs., 10 figs
Method for rapid, high sensitivity tritiated water extraction( )

2 editions published in 1997 in English and held by 0 WorldCat member libraries worldwide

Routine counting methods and ICP-MS are unable to directly measure the new US Department of Energy (DOE) regulatory level for discharge waters containing alpha-emitting radionuclides of 30 pCi/L total alpha or the 0.05 pCi/L regulatory level for Pu or Am activity required for surface waters at the Rocky Flats site by the State of Colorado. This inability indicates the need to develop rapid, reliable, and robust analytical techniques for measuring actinide metal ions, particularly americium and plutonium. Selective separation or preconcentration techniques would aid in this effort. Water-soluble metal-binding polymers in combination with ultrafiltration are shown to be an effective method for selectively removing dilute actinide ions from acidic solutions of high ionic strength. The actinide-binding properties of commercially available water-soluble polymers and several polymers which have been reported in the literature were evaluated. The functional groups incorporated in the polymers were pyrrolidone, amine, oxime, and carboxylic, phosphonic, or sulfonic acid. The polymer containing phosphonic acid groups gave the best results with high distribution coefficients and concentration factors for ²⁴¹Am(III) and ²³⁸Pu(III)/(IV) at pH 4 to 6 and ionic strengths of 0.1 to 4
Deformation and fracture of TiAl + W at elevated temperatures( )

3 editions published in 1990 in English and held by 0 WorldCat member libraries worldwide

The ternary alloy, Ti - 49 at% Al -2 at. % W, was produced using Rotating Electrode Powder (REP) compacted by hot extrusion. The tensile properties of this alloy (strength, ductility and fracture mode) were studied from room temperature to 900°C. Constant load creep properties were measured from 700 to 900°C and analyzed using conventional power law equations to calculate the stress exponent and activation energy. These parameters were approximately 4 and 400 KJ/mole respectively. TEM examination showed that the W was held in solid solution during the tensile and creep deformation when the material was tested in the as-extruded' condition. These results are interpreted as evidence for solid solution strengthening of the TiAl matrix by the W solute. 13 refs., 3 figs., 4 tabs
Cadmium zinc telluride spectral modeling( )

2 editions published in 1998 in English and held by 0 WorldCat member libraries worldwide

Noise caused by surface-leakage current can degrade the performance of CdZnTe spectrometers, particularly devices with closely spaced contacts such as coplanar grid detectors. In order to reduce surface leakage, the authors are treating CdZnTe detector surfaces with energetic, neutral oxygen atoms. Energetic oxygen atoms react with the surface to form a resistive oxide layer. Because the reaction is effective at room temperature, deleterious heating of the substrate is avoided. In most cases, leakage current and noise are shown to decrease significantly after treatment. The effect of the treatment on the performance of coplanar grid detectors is presented
Virtual pinhole confocal microscope( )

1 edition published in 1999 in English and held by 0 WorldCat member libraries worldwide

Scanned confocal microscopes enhance imaging capabilities, providing improved contrast and image resolution in 3-D, but existing systems have significant technical shortcomings and are expensive. Researchers at Los Alamos National Laboratory have developed a novel approach--virtual pinhole confocal microscopy--that uses state of the art illumination, detection, and data processing technologies to produce an imager with a number of advantages: reduced cost, faster imaging, improved efficiency and sensitivity, improved reliability and much greater flexibility. Work at Los Alamos demonstrated proof of principle; prototype hardware and software have been used to demonstrate technical feasibility of several implementation strategies. The system uses high performance illumination, patterned in time and space. The authors have built functional confocal imagers using video display technologies (LCD or DLP) and novel scanner based on a micro-lens array. They have developed a prototype system for high performance data acquisition and processing, designed to support realtime confocal imaging. They have developed algorithms to reconstruct confocal images from a time series of spatially sub-sampled images; software development remains an area of active development. These advances allow the collection of high quality confocal images (in fluorescence, reflectance and transmission modes) with equipment that can inexpensively retrofit to existing microscopes. Planned future extensions to these technologies will significantly enhance capabilities for microscopic imaging in a variety of applications, including confocal endoscopy, and confocal spectral imaging
Nonlinear dynamics of domain walls and vortices in two-dimensional systems( )

1 edition published in 1989 in English and held by 0 WorldCat member libraries worldwide

We discuss analytic and numerical studies of experimentally accessible 2-dimensional condensed matter systems which support nonlinear domain wall and vortex structures. These systems include quasi-2-dimensional magnets and 2-dimensional arrays of Josephson junctions. We emphasize the importance of these systems for investigating: complex (frustrated) ground states, dynamics (including glassy'' dynamics), interactions between domain walls and vortices, and phase transitions at finite temperature accompanied by these excitations. 16 refs., 3 figs
Exciton and biexciton signatures in the femtosecond transient absorption of phenylene-based polymers and oligomers( )

2 editions published in 1998 in English and held by 0 WorldCat member libraries worldwide

The invention of the scanning tunneling microscope (STM) revolutionized the field of surface science, enabling the first images of surface structure on an atomic length scale. In the quest for both atomic spatial and temporal resolution several groups have integrated an ultrafast optoelectronic switch which gates the current from the tip, achieving picosecond time resolution. In this paper, the authors describe a novel STM tip consisting of a cleaved GaAs substrate with a 1-[mu]m thick epilayer of low-temperature-grown GaAs (LT-GaAs) deposited on the face. Since the LT-GaAs has a carrier lifetime of 1 ps, photoexcitation of the tip with an ultrafast, above-bandgap pulse both provides carriers for the tunneling current and photoconductively gates (with ps resolution) the current from the tip. They use this tip to detect picosecond transients on a coplanar stripline and demonstrate a temporal resolution of 1.2 ps in tunneling mode
A linac for the Spallation Neutron Source( )

2 editions published in 1998 in English and held by 0 WorldCat member libraries worldwide

The accelerating structure for Spallation Neutron Source (SNS) consists of a radio-frequency-quadrupole-linac (RFQ), a drift-tube-linac (DTL), a coupled-cavity-drift-tube-linac (CCDTL), and a coupled-cavity-linac (CCL). The linac is operated at room temperature. The authors discuss the detailed design of linac which accelerates an H⁻ pulsed beam coming out from RFQ at 2.5 MeV to 1000 MeV. They show a detailed transition from 402.5 MHz DTL with a 4 [beta][lambda] structure to a CCDTL operated at 805 MHz with a 12 [beta][lambda] structure. After a discussion of overall feature of the linac, they present an end-to-end particle simulation using the new version of the PARMILA code for a beam starting from the RFQ entrance through the rest of the linac. At 1000 MeV, the beam is transported to a storage ring. The storage ring requires a large (±500-keV) energy spread. This is accomplished by operating the rf-phase in the last section of the linac so the particles are at the unstable fixed point of the separatrix. They present zero-current phase advance, beam size, and beam emittance along the entire linac
Space charge in proton linacs( )

2 editions published in 1998 in English and held by 0 WorldCat member libraries worldwide

The authors studied the electrostatic fields due to the longitudinal and transverse perturbations of a charged particle beam with a uniform distribution propagating inside an rf-shielding cage constructed from evenly-spaced conducting wires. Simple formulae are derived for estimating the space-charge impedances. Numerical examples are given for illustration
The effects of user mobility on usage parameter control (UPC) in wireless ATM systems( )

2 editions published in 1997 in English and held by 0 WorldCat member libraries worldwide

Wireless Asynchronous Transfer Mode (WATM) networks pose new traffic management problems. One example is the effect of user mobility on Usage Parameter Control (UPC). If the UPC algorithm resets after each handoff between wireless-cells, then users can cheat on their traffic contract. This paper derives explicit relationships between a user's traffic parameters (Peak Cell Rate, Sustained Cell Rate and Maximum Burst Size), their transit time per wireless-cell, their maximum sustained cheating-rate and the Generic Cell Rate Algorithm's (GCRA's) Limit (L) parameter. It also shows that the GCRA can still effectively police Constant Bit Rate (CBR) traffic, but not some types of realistic Variable Bit Rate (VBR) traffic
Performance evaluation of the IBM RISC (reduced instruction set computer) System Comparison of an optimized scalar processor with two vector processors( )

2 editions published in 1990 in English and held by 0 WorldCat member libraries worldwide

Ordered alloys based on the L1₀ crystal structure compound TiAl were tested in constant stress creep. The alloys ranged from 45 to 47 at. % Al with and without V substitutions. The ingot processing, utilizing the XD{trademark} technique, incorporated 1 to 5 [mu]m diameter particles of boride or nitride compounds. Emphasis was placed on characterizing the initial stages of creep using digital data acquisition and analysis in the range 70 to 280 MPa stress and 760 to 850°C temperature. When TiN (converting to Ti₂AlN in processing) and TiB₂ are both added to the matrix, the creep properties are significantly improved. Fine particles were observed to decorate dislocations and to have nucleated homogeneously within the TiAl grains. 16 refs., 7 figs., 3 tabs
 
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Alternative Names

controlled identityUnited States. Department of Energy

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

controlled identityUnited States. Department of Energy. Office of Financial Management and Controller

controlled identityUnited States. Department of Energy. Procurement and Assistance Management

Office of the Assistant Secretary for Management and Administration

United States. Department of Energy. Assistant Secretary for Management and Administration

United States. Department of Energy. Assistant Secretary, Management and Administration

United States. Department of Energy. Office of the Assistant Secretary for Management and Administration

United States. Dept. of Energy. Office of the Assistant Secretary for Management and Administration

United States. Dept. of Energy. Office of the Assistant Secretary, Management and Administration

Languages
English (45)