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ADVANCED HYBRID PARTICULATE COLLECTOR

Description: A new concept in particulate control, called an advanced hybrid particulate collector (AHPC), is being developed under funding from the US Department of Energy. The AHPC combines the best features of electrostatic precipitators (ESPs) and baghouses in a manner that has not been done before. The AHPC concept consists of a combination of fabric filtration and electrostatic precipitation in the same housing, providing major synergism between the two collection methods, both in the particulate coll… more
Date: November 13, 1998
Creator: Miller, Stanley J. & Schelkoph, Grant L.
Partner: UNT Libraries Government Documents Department
open access

Atomic Energy Act of 1954 [As Amended Through P.L. 105-394, November 13, 1998]: An Act for the development and control of atomic energy

Description: The Atomic Energy Act (AEA) established the Atomic Energy Commission (AEC) to promote the "utilization of atomic energy for peaceful purposes to the maximum extent consistent with the common defense and security and with the health and safety of the public." Since the abolition of the AEC, much of the AEA has been carried out by the Nuclear Regulatory Commission and the U.S. Department of Energy. When EPA was formed, however, the AEC's authority to issue generally applicable environmental radia… more
Date: November 13, 1998
Creator: United States. Congress.
Partner: UNT Libraries
open access

Behavior of Intruder Based States in Light Bi and Tl Isotopes: The Study of <sup>187</sup>Bi Alpha Decay

Description: The excitation energies of the single-particle normal and intruder levels in both `83T1 and 187Bi were measured for the first time via the ct decay of 187Bi produced in the 97Mo(92Mo,pn) 187Bi reaction. The previously unobserved 187Bi ground state (kw) to 183T1 ground state (s1/2) a transition was identified establishing the 187Bi intruder state excitation energy to be 112(21) keV, 70 keV less than that of the same level in 189Bi.
Date: November 13, 1998
Creator: Batchelder, J. C.; Bingham, C. R.; Brown, L. T.; Conticchio, L. F.; Davids, C. N.; DeCoster, C. et al.
Partner: UNT Libraries Government Documents Department
open access

High yield ICF target design for a Z-pinch driven hohlraum

Description: We describe calculations for a high yield inertial fusion design, employing indirect drive with a double-ended z-pinch-driven hohlraum radiation source. A high current ({approximately}60 MA) accelerator implodes z-pinches within an enclosing hohlraum. Radial spoke arrays and shine shields isolate the capsule from the pinch plasma, magnetic field and direct x-ray shine. Our approach places minimal requirements on z-pinch uniformity and stability, usually problematic due to magneto-Rayleigh Taylo… more
Date: November 13, 1998
Creator: Bailey, D. S.; Hammer, J. H.; Lindl, J. D.; Rambo, P. W.; Tabak, M.; Toor, A. et al.
Partner: UNT Libraries Government Documents Department
open access

A Hybrid Vortex Method for Two-Dimensional Flow Over Tube Bundles

Description: A hybrid vortex method is presented for computing flows about objects that accurately resolves the boundary layer details while keeping the number of free vortices at a reasonable level. The method uses a wall layer model close to the body surface and discrete vortex blobs in the free wake. Details of the wall layer implementation are presented, and results of sample calculations are compared with known analytical solutions and with calculations from other vortex codes. These results show that … more
Date: November 13, 1998
Creator: Strickland, J.H. & Wolfe, W.P.
Partner: UNT Libraries Government Documents Department
open access

New Neutron Rich Nuclei Near {sup 208}Pb

Description: The level properties near the stable doubly-magic nuclei formed the experimental grounds for the theoretical description of nuclear structure. However with a departure from the beta-stability line, the classical well-established shell structure might be modified. In particular, it may even vanish for extremely exotic neutron-rich nuclei near the neutron-drip line. Presently, it is impossible to verify such predictions by a direct experimental studies of these exotic objects. However, one may tr… more
Date: November 13, 1998
Creator: Aeystoe, J.; Andreyev, A.; Evensen, A.-H.; Hoff, P.; Huhta, M.; Huyse, M. et al.
Partner: UNT Libraries Government Documents Department
captions transcript

[News Clip: Heroin Death]

Description: B-roll video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story about the increase in deaths due to Heroin overdose in Dallas.
Date: November 13, 1998, 6:00 p.m.
Duration: 1 minute 12 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections
open access

The Performance of the HRIBF Recoil Mass Spectrometry

Description: The Recoil Mass Spectrometer (RMS) is a mass separator located at the Holifield Radioactive Ion Beam Facility (HRIBF) at Oak Ridge National Laboratory. This paper describes the RMS, its performance, its detector systems, and discusses some experiments to illustrate its capabilities.
Date: November 13, 1998
Creator: Ginter, T. N.
Partner: UNT Libraries Government Documents Department
open access

Proton Radioactivity Measurements at HRIBF: Ho, Lu, and Tm Isotopes

Description: Two new isotopes, {sup 145}Tm and {sup 140}Ho and three isomers in previously known isotopes, {sup 141m}Ho, {sup 150m}Lu and {sup 151m}Lu have been discovered and studied via their decay by proton emission. These proton emitters were produced at the Holifield Radioactive Ion Beam Facility (HRIBF) by heavy-ion fusion-evaporation reactions, separated in A/Q with a recoil mass spectrometer (RMS), and detected in a double-sided silicon strip detector (DSSD). The decay energy and half-life was measu… more
Date: November 13, 1998
Creator: Akovali, Y.; Batchelder, J. C.; Bingham, C. R.; Davinson, T.; Ginter, T. N.; Gross, C. J. et al.
Partner: UNT Libraries Government Documents Department
open access

Renewable Energy Opportunity Assessment

Description: Presently, the US EPA is constructing a new complex at Research Triangle Park, North Carolina to consolidate its research operations in the Raleigh-Durham area. The National Computer Center (NCC) is currently in the design process and is planned for construction as partof this complex. Implementation of the new technologies can be planned as part of the normal construction process, and full credit for elimination of the conventional technologies can be taken. Several renewable technologies are … more
Date: November 13, 1998
Creator: Hancock, E. & Mas, C.
Partner: UNT Libraries Government Documents Department
open access

Status of U.S. Plans for an Advanced ISOL Facility, A Brief Report

Description: A brief discussion is provided of the current status of plans to build an advanced ISOL radioactive ion beam facility in the US. Designs for this new facility, which was recommended as the next major construction project of the DOE Nuclear Physics Program Office, have been proposed by two US national laboratories, Argonne National Laboratory and Oak Ridge National Laboratory. The new facility will provide orders-of-magnitude higher radioactive beam currents than existing facilities of this type… more
Date: November 13, 1998
Creator: Bertrand, F.E.
Partner: UNT Libraries Government Documents Department
open access

Thermophotovoltaic Cell Temperature Measurement Issues

Description: The power produced by photovoltaic devices changes with temperature, ranging from 0.1% to nearly 1% per degrees Celsius depending on the structure. The temperature across the surface of TPV cells will vary depending on the amount of absorbed power. Thus the temperature over a region of a wafer where there is no cell will be different from a region of the wafer containing a cell with an antireflection coating and back surface reflector. Vacuum hold-downs or back surface probes may result in loca… more
Date: November 13, 1998
Creator: Emery, K. & Moriarty, T.
Partner: UNT Libraries Government Documents Department
open access

Upgrade of the NCSU PULSTAR instrumentation power channels. Final technical report, September 1, 1992--August 31, 1994

Description: The Nuclear Reactor Program at North Carolina State University initiated an upgrade program at the NCSU PULSTAR Reactor in 1990. The originally supplied instrumentation has been replaced with solid-state and current technology equipment. The financial assistance from the US Department of Energy has been the primary source of support. This is the final report for the Instrumentation Upgrade.
Date: November 13, 1998
Creator: Perez, P. B.
Partner: UNT Libraries Government Documents Department
open access

Drying damaged K West fuel elements (Summary of whole element furnace runs 1 through 8)

Description: N Reactor fuel elements stored in the Hanford K Basins were subjected to high temperatures and vacuum conditions to remove water. Results of the first series of whole element furnace tests i.e., Runs 1 through 8 were collected in this summary report. The report focuses on the six tests with breached fuel from the K West Basin which ranged from a simple fracture at the approximate mid-point to severe damage with cladding breaches at the top and bottom ends with axial breaches and fuel loss. Resu… more
Date: October 13, 1998
Creator: LAWRENCE, L.A.
Partner: UNT Libraries Government Documents Department
open access

EUVE spectroscopy of polars

Description: An admittedly pedantic but hopefully useful and informative analysis is presented of the <I>EUVE</I> 70-180 Å spectra of nine polars. These spectra are fit with three different models - a blackbody, a pure-H stellar atmosphere, and a solar abundance stellar atmosphere|to reveal the presence of spectral features such as absorption lines and edges, and to investigate the sensitivity of the derived (<i>kT, N</i><sub>H</sub>, solid angle) and inferred (fractional emitting area, bolometric luminosit… more
Date: October 13, 1998
Creator: Mauche, C W
Partner: UNT Libraries Government Documents Department
open access

High-Speed, High-Resolution Analog Waveform Sampling in VLSI Technology

Description: Switched-capacitor analog memories are well-suited to a number of applications where a continuous digitization of analog signals is not needed. In data acquisition systems based on the use of an analog memory, the input waveforms are sampled and stored at a high rate for a limited period of time, and the analog samples are then retrieved at a lower rate and digitized with a slow ADC before new waveforms are acquired. The advantages of using an analog memory are lower overall power dissipation a… more
Date: October 13, 1998
Creator: Haller, Gunther
Partner: UNT Libraries Government Documents Department
open access

Massively Parallel Linear Stability Analysis with P_ARPACK for 3D Fluid Flow Modeled with MPSalsa

Description: We are interested in the stability of three-dimensional fluid flows to small dkturbances. One computational approach is to solve a sequence of large sparse generalized eigenvalue problems for the leading modes that arise from discretizating the differential equations modeling the flow. The modes of interest are the eigenvalues of largest real part and their associated eigenvectors. We discuss our work to develop an effi- cient and reliable eigensolver for use by the massively parallel simulatio… more
Date: October 13, 1998
Creator: Lehoucq, R. B. & Salinger, A. G.
Partner: UNT Libraries Government Documents Department
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