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open access

Testing of hollow clay tile masonry prisms

Description: This paper presents test results of 610-mm wide (24-in.) by 1219-mm high (48-in.) by 203-or 330-mm (8- or 13-in.) thick prisms constructed of hollow clay tiles. Three prisms were extracted fro existing hollow clay title walls and 69 were constructed in laboratories at The University of Tennessee and the National Institute of Standards and Technology (NIST) in Gaithersburg, Maryland. Modulus of Elasticity, E, and compressive strength f{prime}{sub m} were calculated from the results.
Date: October 15, 1993
Creator: Jones, W. D. & Butala, M. B.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Evaluation of gas-reburning and low NO{sub x} burners on a wall fired boiler. Technical progress report No. 12, July 1--September 30, 1993

Description: Clean Coal Technology (CCT) implies the use of coal in an environmentally acceptable manner. Coal combustion results in the emission of oxides of nitrogen (NO{sub x}), which are precursors of both acid rain and ozone formation. The primary objective of this CCT project is to evaluate the use of Gas Reburning and Low NO{sub x} Burners (GR-LNB) for NO{sub x} emission control from a wall fired boiler. It is anticipated that, if the demonstration is successful, the GR-LNB technology could become co… more
Date: October 15, 1993
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Best available technology for the Los Alamos National Laboratory Radioactive Liquid Waste Treatment Facility

Description: The existing Los Alamos National Laboratory TA-50 liquid radioactive waste treatment plant RLWP has been in service for over thirty years, during this period many technical, regulatory, and processing changes have occurred. The existing facility can no longer comply with the demands and requirements for continued operation, and would not be able to comply with anticipated stringent future contaminant discharge limitations. Either a major upgrading or replacement of the existing facility is requ… more
Date: October 15, 1993
Creator: Midkiff, W. S.; Romero, R. L.; Suazo, I. L.; Garcia, R. & Parsons, R. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

[Dynamic enhanced recovery technologies]. Quarterly technical report, August 1992--October 1993

Description: This paper has presented the investigation of the mechanism of geopressure occurrence, the transition of elastic properties from the hydrostatic pressured formation to the geopressured formation, and finally, a novel seismic amplitude analysis technique to map the top-of-geopresure surface. The successful application of our new technique to the Pleistocene, offshore Louisiana, Gulf of Mexico has again demonstrated that seismic attributes analyses are of importantance in the hydrocarbon explorat… more
Date: October 15, 1993
Creator: Anderson, R. N.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Convection in Type 2 supernovae

Description: Results are presented here from several two dimensional numerical calculations of events in Type II supernovae. A new 2-D hydrodynamics and neutrino transport code has been used to compute the effect on the supernova explosion mechanism of convection between the neutrinosphere and the shock. This convection is referred to as exterior convection to distinguish it from convection beneath the neutrinosphere. The model equations and initial and boundary conditions are presented along with the simul… more
Date: October 15, 1993
Creator: Miller, D. S.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries Government Documents Department
open access

The APS beamline front end vacuum system

Description: This report discusses the design of the vacuum system for the advanced photon source beamline front ends. Included in this report are discussions on: vacuum calculations, the differential pump; front end vacuum set points; cleaning methods and agents; and continuing and completed research and development.
Date: October 15, 1993
Creator: Nielsen, R.W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Communication on the Paragon

Description: In this note the authors describe the results of some tests of the message-passing performance of the Intel Paragon. These tests have been carried out under both the Intel-supplied OSF/1 operating system with an NX library, and also under an operating system called SUNMOS (Sandia UNM Operating System). For comparison with the previous generation of Intel machines, they have also included the results on the Intel Touchstone Delta. The source code used for these tests is identical for all systems… more
Date: October 15, 1993
Creator: Greenberg, D.; Maccabe, B.; McCurley, K. S.; Riesen, R. & Wheat, S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
captions transcript

[News Clip: TX round up]

Description: Video footage from the KXAS-TV television station in Fort Worth, Texas, covering a news story.
Date: October 15, 1993, 10:00 p.m.
Duration: 40 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections
open access

Coastal Zone Management Act and related legislation: Revision 3. Environmental Guidance Program Reference Book

Description: In recognition of the increasing pressures upon the nation`s coastal resources, Congress enacted the Coastal Zone Management Act in 1972. Its purpose is to encourage states to preserve, protect, develop, and, where possible, restore or enhance such valuable natural resources as wetlands, floodplains, estuaries, beaches, dunes, barrier islands, and coral reefs, as well as the fish and wildlife utilizing those habitats. A unique feature of the Act is that participation by states is voluntary. One… more
Date: October 15, 1993
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

ITP Hanford Type 40 pin electrical connector failure analysis

Description: Corrosion products observed on the ITP Hanford Type 40 pin electrical connectors would be expected to adversely affect the power and control signals supplied to process equipment in the filter cell by the connectors. Corrosion products were consistent with those found on similar pins in DWPF. The recommendations based on the findings in this investigation are as follows: (1) Replace male and female rhodium plated pins with gold plated pins. (2) Replace the galvanized carbon steel spring on the … more
Date: October 15, 1993
Creator: Imrich, K. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The hydrogen hybrid option

Description: The energy efficiency of various piston engine options for series hybrid automobiles are compared with conventional, battery powered electric, and proton exchange membrane (PEM) fuel cell hybrid automobiles. Gasoline, compressed natural gas (CNG), and hydrogen are considered for these hybrids. The engine and fuel comparisons are done on a basis of equal vehicle weight, drag, and rolling resistance. The relative emissions of these various fueled vehicle options are also presented. It is conclude… more
Date: October 15, 1993
Creator: Smith, J. R.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

A survey of open problems in symplectic integration

Description: In the past few years there has been a substantial amount of research on symplectic integration. The subject is only part of a program concerned with numerically preserving a system`s inherent geometrical structures. Volume preservation, reversibility, local conservation laws for elliptic equations, and systems with integral invariants are but a few examples of such invariant structures. In many cases one requires a numerical method to stay in the smallest possible appropriate group of phase sp… more
Date: October 15, 1993
Creator: McLachlan, R. I. & Scovel, C.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

An investigation of the effects of history dependent damage in time dependent fracture mechanics; Phases I, II, and one half of Phase III - variable load conditions. Progress report

Description: The demands for structural systems to perform reliably under severe temperatures and load conditions continue to increase. These demands will continue with the development of advanced power generation methods, for aging nuclear and fossil fueled power plants, and for future aerospace applications. An understanding of the high-temperature creep crack growth process, which is a frequent failure mechanism in these structures, is important. Many investigations which have appeared to date are concer… more
Date: October 15, 1993
Creator: Brust, F. W.; Krishnaswamy, P. & Majumdar, B. S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Enhancing the use of coals by gas reburning-sorbent injection. Quarterly report No. 24, July 1--September 30, 1993

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: October 15, 1993
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

On the application of Allan variance method for Ring Laser Gyro performance characterization

Description: This report describes the method of Allan variance and its application to the characterization of a Ring Laser Gyro`s (RLG) performance. Allan variance, a time domain analysis technique, is an accepted IEEE standard for gyro specifications. The method was initially developed by David Allan of the National Bureau of Standards to quantify the error statistics of a Cesium beam frequency standard employed as the US Frequency Standards in 1960`s. The method can, in general, be applied to analyze the… more
Date: October 15, 1993
Creator: Ng, L. C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Economic impacts of oil spills: Spill unit costs for tankers, pipelines, refineries, and offshore facilities. [Task 1, Final report]

Description: The impacts of oil spills -- ranging from the large, widely publicized Exxon Valdez tanker incident to smaller pipeline and refinery spills -- have been costly to both the oil industry and the public. For example, the estimated costs to Exxon of the Valdez tanker spill are on the order of $4 billion, including $2.8 billion (in 1993 dollars) for direct cleanup costs and $1.125 billion (in 1992 dollars) for settlement of damages claims caused by the spill. Application of contingent valuation cost… more
Date: October 15, 1993
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
captions transcript

[News Clip: Courthouse Shooting]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: October 15, 1993, 10:00 p.m.
Duration: 1 minute 42 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: Brosky]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: October 15, 1993, 6:00 p.m.
Duration: 1 minute 10 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: Storm Damage]

Description: B-roll video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: October 15, 1993, 6:00 p.m.
Duration: 47 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: Four Shot]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: October 15, 1993, 10:00 p.m.
Duration: 2 minutes
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: Midway]

Description: B-roll video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: October 15, 1993, 5:00 p.m.
Duration: 1 minute 20 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: Price]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: October 15, 1993
Duration: 43 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections
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