50 Matching Results

Search Results

Results: 1 - 24 next
open access

Background to the Overthrow of President Aristide

Description: This report provides background information on the violent and authoritarian traditions that have characterized Haiti's political dynamics since Haiti attained independence in 1804. It examines Haiti's difficult path toward democracy after the fall of the Duvalier regime, from numerous short-lived governments until the election of Aristide. Finally, the report also surveys Aristide's rule and his subsequent overthrow by the Haitian military.
Date: October 22, 1993
Creator: Taft-Morales, Maureen
Partner: UNT Libraries Government Documents Department
open access

Final vegetative cover for closed waste sites

Description: Low-level, hazardous, and mixed waste disposal sites normally require some form of plant material to prevent erosion of the final closure cap. Waste disposal sites are closed and capped in a complex scientific manner to minimize water infiltration and percolation into and through the waste material. Turf type grasses are currently being used as an interim vegetative cover for most sites. This coverage allows for required monitoring of the closure cap for settlement and maintenance activities. T… more
Date: January 22, 1993
Creator: Cook, J. R. & Salvo, S. K.
Partner: UNT Libraries Government Documents Department
open access

High efficiency shale oil recovery

Description: The overall project objective is to demonstrate the high efficiency of the Adams Counter-Current shale oil recovery process. The efficiency will first be demonstrated on a small scale, in the current phase, after which the demonstration will be extended to the operation of a small pilot plant. Thus the immediate project objective is to obtain data on oil shale retorting operations in a small batch rotary kiln that will be representative of operations in the proposed continuous process pilot pla… more
Date: April 22, 1993
Creator: Adams, D.C.
Partner: UNT Libraries Government Documents Department
open access

Model building, control and optimization of large scale systems

Description: This report covers the research progress made during the calendar year 1992. The new results obtained during this period are described, keyed to the references listed on the last two pages of this report.
Date: February 22, 1993
Creator: Basar, T.
Partner: UNT Libraries Government Documents Department
open access

Engineering development of advanced coal-fired low-emission boiler systems

Description: Project Work Plan was developed with joint participation by all subsystem teams. Comprehensive overall project activity schedules were developed for all individual B W groups and subcontractors with participation in Phase I.
Date: January 22, 1993
Partner: UNT Libraries Government Documents Department
open access

Causes and proposed resolutions of high vibration in NWTF transfer pumps

Description: This Technical Report is intended to communicate the findings from the latest phase of New Waste Transfer Facility (NWTF) transfer pump testing. These tests have identified causes for the high pump vibrations that have been observed during previous phases of transfer pump startup testing, and have led to recommendations for resolving the vibration problem. The paper describes the problem, the test methodology, observations, and recommend actions to correct the vibration problem.
Date: October 22, 1993
Creator: Trawinski, B. J.
Partner: UNT Libraries Government Documents Department
open access

Natural gas annual 1992. Volume 2

Description: This document provides information on the supply and disposition of natural gas to a wide audience including industry, consumers, Federal and State agencies, and educational institutions. This report, Volume 2, presents historical data for the Nation from 1930 to 1992, and by State from 1967 to 1992. The Supplement of this report presents profiles of selected companies.
Date: November 22, 1993
Partner: UNT Libraries Government Documents Department
open access

Surfactant studies for bench-scale operation. Fifth quarterly technical progress report: July 1, 1993--September 30, 1993

Description: A phase II study has been initiated to investigate surfactant-assisted coal liquefaction, with the objective of quantifying the enhancement in liquid yields and product quality. This report covers the fifth quarter of work. The major accomplishments were: (1) Completion of coal liquefaction autoclave reactor runs and related analysis with Illinois no. 6 coal at 400{degrees}C with and without surfactant and/or catalyst at pressures of 1700 psig; (2) A literature search into the effect that ligni… more
Date: October 22, 1993
Creator: Hickey, G. S. & Sharma, P. K.
Partner: UNT Libraries Government Documents Department
open access

Research consortium on fractured petroleum reservoirs. Third quarterly report, July 1--September 30, 1993

Description: Our 1993 third quarter report discusses the results of our work on: (1) gas-oil gravity drainage in layered media; and, (2) the influence of viscous forces on gas-oil flow in fractured porous media. For sometime, we have been working on the incorporation of reinfiltration and capillary continuity concepts in a dual-porosity model. A simple and accurate technique has been developed for this purpose. The experiments on gas-oil gravity drainage in layered media are intended to: (1) verify our theo… more
Date: November 22, 1993
Creator: Firoozabadi, A. & Markeset, T.
Partner: UNT Libraries Government Documents Department
open access

Final vegetative cover for closed waste sites. Revision 1

Description: Low-level, hazardous, and mixed waste disposal sites normally require some form of plant material to prevent erosion of the final closure cap. Waste disposal sites are closed and capped in a complex scientific manner to minimize water infiltration and percolation into and through the waste material. Turf type grasses are currently being used as an interim vegetative cover for most sites. This coverage allows for required monitoring of the closure cap for settlement and maintenance activities. T… more
Date: January 22, 1993
Creator: Cook, J. R. & Salvo, S. K.
Partner: UNT Libraries Government Documents Department
open access

The use of intelligence information to identify the foreign interests of entities involved with DOE programs

Description: This report investigates whether DOE activities could benefit from greater and more consistent access to intelligence information on selected entities with foreign interests. It does not cover dual-use and munition commodities. The investigation determined what information was available from the national intelligence community and law enforcement agencies that would have prevented DOE contracts with selected entities if the information had been available and regulations regarding contracts with… more
Date: October 22, 1993
Partner: UNT Libraries Government Documents Department
open access

Metallocarboxylate chemistry. Progress report, November 17, 1992--November 22, 1993

Description: Research is focused on bimetallic compounds of late transition metals with carbon dioxide or CO{sub 2}-containing bridging ligands. The compounds are models for catalytic intermediates in CO{sub 2} fixation/activation processes. Thermolysis was studied. Re, Fe, and Sn complexes were studied.
Date: November 22, 1993
Creator: Gibson, D. H.
Partner: UNT Libraries Government Documents Department
open access

Varying execution discipline to increase performance

Description: This research investigates the relationship between execution discipline and performance. The hypothesis has two parts: 1. Different execution disciplines exhibit different performance for different computations, and 2. These differences can be effectively predicted by heuristics. A machine model is developed that can vary its execution discipline. That is, the model can execute a given program using either the control-driven, data-driven or demand-driven execution discipline. This model is ref… more
Date: December 22, 1993
Creator: Campbell, P. L. & Maccabe, A. B.
Partner: UNT Libraries Government Documents Department
open access

Enhancing the use of coals by gas reburning-sorbent injection. Quarterly report No. 21, October 1--December 31, 1992

Description: The objective of this project is to evaluate and demonstrate a cost effective emission control technology for acid rain precursors, oxides of nitrogen (NO{sub x}) and sulfur (SO{sub x}) on two coal fired utility boilers in Illinois. The units selected are representative of pre-NSPS design practices: tangential and cyclone fired. The specific objectives are to demonstrate reductions of 60 percent in NO{sub x} and 50 percent in SO{sub x} emissions, by a combination of two developed technologies, … more
Date: January 22, 1993
Partner: UNT Libraries Government Documents Department
open access

Precision of source response inside dimpled HAD brass tubes

Description: We have measured the variation in response of the {sup 137}CS source as positioned in 10 samples of the brass source tubes, dimpled at {plus_minus}5 cm from the center of a scintillator tile. We find an RMS in the signals of 2.5%.
Date: February 22, 1993
Creator: Jankowski, D. J. & Stanek, R.
Partner: UNT Libraries Government Documents Department
open access

High SO{sub 2} removal efficiency testing. Technical progress report, [January 1--March 31, 1993]

Description: This document provides a discussion of the technical progress on DOE-PETC Project Number AC22-92PC91338, ``High Efficiency SO{sub 2} Removal Testing,`` for the time period from January 1 through March 31, 1993. The project involves testing at full-scale utility flue gas desulfurization (FGD) systems to evaluate low capital cost upgrades that may allow these systems to achieve up to 98% SO{sub 2} removal efficiency. The options to be evaluated primarily involve the addition of organic acid buffe… more
Date: April 22, 1993
Creator: Blythe, G.
Partner: UNT Libraries Government Documents Department
open access

FORTE log periodic antenna. Phase 1, Final report

Description: This report summarizes the results of ABLE`s design study of the FORTE deployable log periodic antenna. The resulting Baseline Design of the antenna is the basis for ABLE`s proposal for Phase II of this program. ABLE`s approach to meeting the requirements is to use a coilable ABLE mast as the deployable structure ``backbone`` of the antenna and to use deployable tubes for. the log periodic dipole elements of the antenna. This general approach was adopted at the outset of the Phase I Design Stud… more
Date: April 22, 1993
Partner: UNT Libraries Government Documents Department
open access

The generalized Erlangen program and setting a geometry for four- dimensional conformal fields

Description: This is the text of a talk at the International Symposium on ``Mathematical Physics towards the XXI Century`` held in March 1993 at Beersheva, Israel. In the first part we attempt to summarize XXth Century Physics, in the light of Kelvin`s 1900 speech ``Dark Clouds over XIXth Century Physics.`` Contrary to what is usually said, Kelvin predicted that the ``clouds`` (relativity and quantum mechanics) would revolutionize physics and that one hundred years might be needed to harmonize them with cla… more
Date: October 22, 1993
Creator: Ne`eman, Y.; Hehl, F. W. & Mielke, E. W.
Partner: UNT Libraries Government Documents Department
open access

Road Transportable Analytical Laboratory (RTAL) system. Quarterly technical report, December 1992--February 1993

Description: The goal of this contractual effort is the development and demonstration of a Road Transportable Analytical Laboratory (RTAL) system to meet the unique needs of the Department of Energy (DOE) for rapid, accurate analysis of a wide variety of hazardous and radioactive contaminants in soil, groundwater, and surface waters. This laboratory system will be designed to provide the field and laboratory analytical equipment necessary to detect and quantify radionuclides, organics, heavy metals and othe… more
Date: March 22, 1993
Partner: UNT Libraries Government Documents Department
open access

High SO[sub 2] removal efficiency testing

Description: This document provides a discussion of the technical progress on DOE-PETC Project Number AC22-92PC91338, High Efficiency SO[sub 2] Removal Testing,'' for the time period from January 1 through March 31, 1993. The project involves testing at full-scale utility flue gas desulfurization (FGD) systems to evaluate low capital cost upgrades that may allow these systems to achieve up to 98% SO[sub 2] removal efficiency. The options to be evaluated primarily involve the addition of organic acid buffers… more
Date: April 22, 1993
Creator: Blythe, G.
Partner: UNT Libraries Government Documents Department
open access

The electromagnetic calorimeter for the solenoidal tracker at RHIC. A Conceptual Design Report

Description: This report discusses the following on the electromagnetic calorimeter for the solenoidal tracker at RHIC: conceptual design; the physics of electromagnetic calorimetry in STAR; trigger capability; integration into STAR; and cost, schedule, manpower, and funding.
Date: September 22, 1993
Creator: Beddo, M. E.; Bielick, E.; Dawson, J. W. & Collaboration, The STAR EMC
Partner: UNT Libraries Government Documents Department
open access

Summary of the radiation damage studies of the SDC dopants in polystyrene

Description: Approximately 80 commercially available fluorescent organic compounds were studied as dopants in a polystyrene matrix for possible use in wavelength shifting (WLS) fibers. The goal was to find a new green- emitting WLS fiber which would outperform in light yield and decay time the currently available fiber doped with K-27. Therefore the fluorescent compounds of interest should exhibit the following spectroscopic characteristics in polystyrene: {lambda}{sub abs} = 400--450 nm,{lambda}{sub em} = … more
Date: December 22, 1993
Creator: Pla-Dalmau, A.; Foster, G. W. & Zhang, G.
Partner: UNT Libraries Government Documents Department
open access

Simulation of salt waste evaporation/crystallization

Description: The database of ProChem software has been enhanced to account for the formation of the mineral, Burkite which can form in alkaline tank wastes during evaporation. This mineral was not suspected until recent evaporation/crystallization studies suggested its presence. The enhanced data base will predict its occurrence and realm of existence. If salt cake temperatures drop below 30{degrees}C the Burkite phase is unstable toward hydrated sodium carbonates and sulfates. ProChem will not predict if t… more
Date: January 22, 1993
Creator: Orebaugh, E. G.
Partner: UNT Libraries Government Documents Department
Back to Top of Screen