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Altus Times (Altus, Okla.), Vol. 93, No. 41, Ed. 1 Friday, April 30, 1993 (open access)

Altus Times (Altus, Okla.), Vol. 93, No. 41, Ed. 1 Friday, April 30, 1993

Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date: April 30, 1993
Creator: Lomenick, Rick
Object Type: Newspaper
System: The Gateway to Oklahoma History
The Alvin Sun (Alvin, Tex.), Vol. 102, No. 113, Ed. 1 Friday, April 30, 1993 (open access)

The Alvin Sun (Alvin, Tex.), Vol. 102, No. 113, Ed. 1 Friday, April 30, 1993

Semiweekly newspaper from Alvin, Texas that includes local, state, and national news along with advertising.
Date: April 30, 1993
Creator: Schwind, Jim & Kramer, Mark
Object Type: Newspaper
System: The Portal to Texas History
Appalachian Basin Low-Permeability Sandstone Reservoir Characterizations (open access)

Appalachian Basin Low-Permeability Sandstone Reservoir Characterizations

A preliminary assessment of Appalachian basin natural gas reservoirs designated as 'tight sands' by the Federal Energy Regulatory Commission (FERC) suggests that greater than 90% of the 'tight sand' resource occurs within two groups of genetically-related units; (1) the Lower Silurian Medina interval, and (2) the Upper Devonian-Lower Mississippian Acadian clastic wedge. These intervals were targeted for detailed study with the goal of producing geologic reservoir characterization data sets compatible with the Tight Gas Analysis System (TGAS: ICF Resources, Inc.) reservoir simulator. The first phase of the study, completed in September, 1991, addressed the Medina reservoirs. The second phase, concerned with the Acadian clastic wedge, was completed in October, 1992. This report is a combined and updated version of the reports submitted in association with those efforts. The Medina interval consists of numerous interfingering fluvial/deltaic sandstones that produce oil and natural gas along an arcuate belt that stretches from eastern Kentucky to western New York. Geophysical well logs from 433 wells were examined in order to determine the geologic characteristics of six separate reservoir-bearing intervals. The Acadian clastic wedge is a thick, highly-lenticular package of interfingering fluvial-deltaic sandstones, siltstones, and shales. Geologic analyses of more than 800 wells resulted in …
Date: April 30, 1993
Creator: Boswell, Ray; Pool, Susan; Pratt, Skip & Matchen, David
Object Type: Report
System: The UNT Digital Library
ARTI Refrigerant Database (open access)

ARTI Refrigerant Database

The Refrigerant Database consolidates and facilitates access to information to assist industry in developing equipment using alternative refrigerants. The underlying purpose is to accelerate phase out of chemical compounds of environmental concern. The database provides bibliographic citations and abstracts for publications that may be useful in research and design of air-conditioning and refrigeration equipment. The complete documents are not included. The database identifies sources of specific information on R-32, R-123, R-124, R-125, R-134, R-134a, R-141b, R-142b, R-143a, R-152a, R-245ca, R-290 (propane), R-717 (ammonia), ethers, and others as well as azeotropic and zeotropic blends of these fluids. It addresses lubricants including alkylbenzene, polyalkylene glycol, ester, and other synthetics as well as mineral oils. It also references documents addressing compatibility of refrigerants and lubricants with metals, plastics, elastomers, motor insulation, and other materials used in refrigerant circuits. Incomplete citations or abstracts are provided for some documents to accelerate availability of the information and will be completed or replaced in future updates.
Date: April 30, 1993
Creator: Cain, J.M. (Calm (James M.), Great Falls, VA (United States))
Object Type: Report
System: The UNT Digital Library
ARTI Refrigerant Database (open access)

ARTI Refrigerant Database

The Refrigerant Database consolidates and facilitates access to information to assist industry in developing equipment using alternative refrigerants. The underlying purpose is to accelerate phase out of chemical compounds of environmental concern. The database provides bibliographic citations and abstracts for publications that may be useful in research and design of air-conditioning and refrigeration equipment. The complete documents are not included. The database identifies sources of specific information on R-32, R-123, R-124, R-125, R-134, R-134a, R-141b, R-142b, R-143a, R-152a, R-245ca, R-290 (propane), R-717 (ammonia), ethers, and others as well as azeotropic and zeotropic blends of these fluids. It addresses lubricants including alkylbenzene, polyalkylene glycol, ester, and other synthetics as well as mineral oils. It also references documents addressing compatibility of refrigerants and lubricants with metals, plastics, elastomers, motor insulation, and other materials used in refrigerant circuits. Incomplete citations or abstracts are provided for some documents to accelerate availability of the information and will be completed or replaced in future updates.
Date: April 30, 1993
Creator: Cain, J. M.
Object Type: Report
System: The UNT Digital Library
Assist in the Recovery of Bypassed Oil From Reservoirs in the Gulf of Mexico. Quarterly Report, January 1--March 30, 1993 (open access)

Assist in the Recovery of Bypassed Oil From Reservoirs in the Gulf of Mexico. Quarterly Report, January 1--March 30, 1993

The objective of this research is to assist the recovery of non contacted oil from known reservoirs on the Outer Continental Shelf in the Gulf of,Mexico. Mature off shore reservoirs, declining oil reserves, declining production, and other natural forces are accelerating the abandonment of offshore oil resources and production platforms. As these offshore wells are plugged and the platforms are abandoned, an enormous volume of remaining oil will be permanently abandoned. Significant quantities of this oil could be recovered using advanced technologies now available if the resource can be identified. During this reporting period, ICF Resources Incorporated (ICF), a subcontractor for the project, continued to collect data from Minerals Management Service (MMS) and LSU continued to collect data from several operators. LSU also continued to modify BOAST II for the integration of radial grid systems and the building of the experimental apparatus for studying the recovery of attic oil. BDM Federal, Inc. (name changed from BDM International, Inc.) (BDM), a subcontractor for the project, began modifying the MASTER reservoir simulation model for use in simulating miscible gas injection processes in steeply dipping reservoirs. LSU and BDM Federal. Inc. began analyzing data obtained from Taylor Energy in South Marsh 73 field.
Date: April 30, 1993
Creator: Schenewerk, P. A.
Object Type: Report
System: The UNT Digital Library
The Baytown Sun (Baytown, Tex.), Vol. 71, No. 156, Ed. 1 Friday, April 30, 1993 (open access)

The Baytown Sun (Baytown, Tex.), Vol. 71, No. 156, Ed. 1 Friday, April 30, 1993

Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date: April 30, 1993
Creator: Dobbs, Gary
Object Type: Newspaper
System: The Portal to Texas History
Bench-scale testing of the multi-gravity separator in combination with Microcel (open access)

Bench-scale testing of the multi-gravity separator in combination with Microcel

Work this quarter focused on the development of the engineering design specifications for the ET Test Circuit. Process flowsheets and detailed equipment specifications were finalized. Based on this information, bid packages were assembled and purchase orders were issued for all of the necessary process equipment. The design and procurement information is summarized in the ET Circuit Design Report submitted to the DOE's COR this quarter. Final drafts of the ET Circuit - System Safety Analysis, Nuclear Density Gauge - System Safety Analysis and Operating Manual/SOP were also completed and submitted to the COR this quarter. Preliminary characterization studies were also initiated this quarter. Tests were conducted to determine the grinding conditions required to achieve the desired particle size distributions for the characterization work. Flotation release analysis tests were conducted on both the Pittsburgh [number sign]8 and Illinois [number sign]6 seam coals as a function of grind size. The primary objective of the proposed work is to design, install, and operate an advanced fine coal processing circuit combining the Microcel and Multi-Gravity-Separator (MGS) technologies. Both of these processes have specific advantages as stand-alone units. For example, the Microcel column effectively removes ash-bearing mineral matter, while the MGS efficiently removes coal-pyrite composites. …
Date: April 30, 1993
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Bench-scale testing of the multi-gravity separator in combination with Microcel. Second Quarterly report, January 1, 1993--March 31, 1993 (open access)

Bench-scale testing of the multi-gravity separator in combination with Microcel. Second Quarterly report, January 1, 1993--March 31, 1993

Work this quarter focused on the development of the engineering design specifications for the ET Test Circuit. Process flowsheets and detailed equipment specifications were finalized. Based on this information, bid packages were assembled and purchase orders were issued for all of the necessary process equipment. The design and procurement information is summarized in the ET Circuit Design Report submitted to the DOE`s COR this quarter. Final drafts of the ET Circuit - System Safety Analysis, Nuclear Density Gauge - System Safety Analysis and Operating Manual/SOP were also completed and submitted to the COR this quarter. Preliminary characterization studies were also initiated this quarter. Tests were conducted to determine the grinding conditions required to achieve the desired particle size distributions for the characterization work. Flotation release analysis tests were conducted on both the Pittsburgh {number_sign}8 and Illinois {number_sign}6 seam coals as a function of grind size. The primary objective of the proposed work is to design, install, and operate an advanced fine coal processing circuit combining the Microcel and Multi-Gravity-Separator (MGS) technologies. Both of these processes have specific advantages as stand-alone units. For example, the Microcel column effectively removes ash-bearing mineral matter, while the MGS efficiently removes coal-pyrite composites. By combining …
Date: April 30, 1993
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Chickasha Daily Express (Chickasha, Okla.), Vol. 102, No. 43, Ed. 1 Friday, April 30, 1993 (open access)

Chickasha Daily Express (Chickasha, Okla.), Vol. 102, No. 43, Ed. 1 Friday, April 30, 1993

Daily newspaper from Chickasha, Oklahoma that includes local, state, and national news along with advertising.
Date: April 30, 1993
Creator: Plummer, George
Object Type: Newspaper
System: The Gateway to Oklahoma History
[Copy of latter from Bernard Stoller to Sharon Boyd] (open access)

[Copy of latter from Bernard Stoller to Sharon Boyd]

Xerographic of a letter from Attorney Bernard Stoller to Sharon Boyd with allegations of libel and slander against her.
Date: April 30, 1993
Creator: unknown
Object Type: Letter
System: The UNT Digital Library
The cost of ethanol production from lignocellulosic biomass -- A comparison of selected alternative processes. Final report (open access)

The cost of ethanol production from lignocellulosic biomass -- A comparison of selected alternative processes. Final report

The purpose of this report is to compare the cost of selected alternative processes for the conversion of lignocellulosic biomass to ethanol. In turn, this information will be used by the ARS/USDA to guide the management of research and development programs in biomass conversion. The report will identify where the cost leverages are for the selected alternatives and what performance parameters need to be achieved to improve the economics. The process alternatives considered here are not exhaustive, but are selected on the basis of having a reasonable potential in improving the economics of producing ethanol from biomass. When other alternatives come under consideration, they should be evaluated by the same methodology used in this report to give fair comparisons of opportunities. A generic plant design is developed for an annual production of 25 million gallons of anhydrous ethanol using corn stover as the model substrate at $30/dry ton. Standard chemical engineering techniques are used to give first order estimates of the capital and operating costs. Following the format of the corn to ethanol plant, there are nine sections to the plant; feed preparation, pretreatment, hydrolysis, fermentation, distillation and dehydration, stillage evaporation, storage and denaturation, utilities, and enzyme production. There are …
Date: April 30, 1993
Creator: Grethlein, H.E. & Dill, T.
Object Type: Report
System: The UNT Digital Library
Dallas Voice (Dallas, Tex.), Vol. 9, No. 53, Ed. 1 Friday, April 30, 1993 (open access)

Dallas Voice (Dallas, Tex.), Vol. 9, No. 53, Ed. 1 Friday, April 30, 1993

Weekly newspaper from Dallas, Texas that includes local, state, and national news and advertising of interest to the Lesbian, Gay, Bisexual, and Transgender (LGBT) community.
Date: April 30, 1993
Creator: Vercher, Dennis
Object Type: Newspaper
System: The UNT Digital Library
Density functional studies: First principles and semi-emperical calculations of clusters and surfaces (open access)

Density functional studies: First principles and semi-emperical calculations of clusters and surfaces

Theoretical electronic structure techniques are used to analyze widely different systems from Si clusters to transition metal solids and surfaces. For the Si clusters, first principles density functional methods are used to investigate Si{sub N} for N=2-8. Goal is to understand the different types of bonding that can occur in such small clusters where the atomic coordination differs substantially from tetrahedral bonding; such uncoordinated structures can test approximate models of Si surfaces. For the transition metal systems, non-self-consistent electronic structure methods are used to understand the driving force for surface relaxations. In-depth analysis of results is presented and physical basis of surface relaxation within the theory is discussed. Limitations inherent in calculations of metal surface relaxation are addressed. Finally, in an effort to understand approximate methods, a novel non-self- consistent density functional electronic structure method is developed that is about 1000 times faster than more sophisticated methods; this method is tested for various systems including diatomics, mixed clusters, surfaces, and bulk lattices.
Date: April 30, 1993
Creator: Susan, S.
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Determination of concentration profiles at interfaces and surfaces of partially miscible polymer blends (open access)

Determination of concentration profiles at interfaces and surfaces of partially miscible polymer blends

The research is divided among several topics: wetting of thin liquid polyethylene-propylene films, Fourier reconstruction of density profiles of thin films using anomalous x-ray reflectivity, and temperature and concentration effects on grafted polymers in the melt. 3 figs.
Date: April 30, 1993
Creator: Rafailovich, M. & Sokolov, J.
Object Type: Report
System: The UNT Digital Library
Determination of concentration profiles at interfaces and surfaces of partially miscible polymer blends. Final Technical report, September 25, 1990--December 24, 1992 (open access)

Determination of concentration profiles at interfaces and surfaces of partially miscible polymer blends. Final Technical report, September 25, 1990--December 24, 1992

The research is divided among several topics: wetting of thin liquid polyethylene-propylene films, Fourier reconstruction of density profiles of thin films using anomalous x-ray reflectivity, and temperature and concentration effects on grafted polymers in the melt. 3 figs.
Date: April 30, 1993
Creator: Rafailovich, M. & Sokolov, J.
Object Type: Report
System: The UNT Digital Library
Development of Rotating Shadowband Spectral Radiometers and GCM Radiation Code Test Data Sets in Support of ARM. Technical Progress Report, September 15, 1992--October 31, 1993 (open access)

Development of Rotating Shadowband Spectral Radiometers and GCM Radiation Code Test Data Sets in Support of ARM. Technical Progress Report, September 15, 1992--October 31, 1993

The ARM goal is to help improve both longwave and shortwave models by providing improved radiometric shortwave data. These data can be used directly to test shortwave model predictions. As will be described below they can also provide inferred values for aerosol and cloud properties that are useful for longwave modeling efforts as well. The current ARM research program includes three tasks all related to the study of shortwave radiation transfer through clouds and aerosol. Two of the tasks involve the assembly of archived and new radiation and meteorological data sets; the third and dominant task has been the development and use of new shortwave radiometric sensors. Archived data from Golden, Colorado, and Albany, New York, were combined with National Weather Service ground and upper air data for testing radiation models for the era when the Earth Radiation Budget Experiment (ERBE) was operational. These data do not include optimum surface radiation measurements; consequently we are acquiring downwelling shortwave, including direct and diffuse irradiance, plus downwelling longwave, upwelling shortwave, and aerosol optical depth, at our own institution, as an additional dataset for ARM modelers.
Date: April 30, 1993
Creator: Michalsky, J. & Harrison, L.
Object Type: Report
System: The UNT Digital Library
Economic efficiency, IRPs and long term contracts (open access)

Economic efficiency, IRPs and long term contracts

There is no market failure that warrants utility regulation of the construction of new generating plants, the supply of energy efficiency or the purchase of fuel under contract. The natural monopoly problem applies to the distribution of electricity and gas, not to generation, energy conservation, or gas purchases. Utility regulation magnifies a market failure, which is the principal agent problem. Regulatory allowance of utilities signing long term fixed price contracts and undertaking conservation measures result in costs and risks being shifted to ratepayers that would not occur under competitive market conditions. Economic efficiency would be enhanced if cost of service regulation of electric and gas utilities were replaced by a competitive market process for the construction of new power plants, utility conservation programs and contracts to purchase fuel. Conservation measures could be supplied by energy service companies. Gas merchants could provide gas and energy conservation directly to ultimate customers, if they had access to LDC pipelines. With a competitive market established to sell gas and energy services, contracts and conservation measures would not require cost-of- service regulation.
Date: April 30, 1993
Creator: Sutherland, R. J.
Object Type: Article
System: The UNT Digital Library
Experimental studies of actinide volatilities with application to mixed waste oxidation processors (open access)

Experimental studies of actinide volatilities with application to mixed waste oxidation processors

The transpiration technique is used to measure volatilities of U from U{sub 3}O{sub 8}(s), Pu from PuO{sub 2}(s) and Pu and Am from PuO{sub 2}/2%AmO{sub 2}(s) in the presence of steam and oxygen at temperatures ranging from 900 to 1300{degree}C.
Date: April 30, 1993
Creator: Krikorian, O. H.; Ebbinghaus, B. B.; Condit, R. H.; Adamson, M. G.; Fontes, A. S. Jr. & Fleming, D. L.
Object Type: Article
System: The UNT Digital Library
Fifteenth Street News (Midwest City, Okla.), Vol. 21, No. 27, Ed. 1 Friday, April 30, 1993 (open access)

Fifteenth Street News (Midwest City, Okla.), Vol. 21, No. 27, Ed. 1 Friday, April 30, 1993

Newspaper from Rose State College in Midwest City, Oklahoma that includes national, local, and campus news along with advertising.
Date: April 30, 1993
Creator: Addington, Kathy
Object Type: Newspaper
System: The Gateway to Oklahoma History
Genetic improvement and evaluation of black cottonwood for short- rotation biomass production. Final report, 1987--1992 (open access)

Genetic improvement and evaluation of black cottonwood for short- rotation biomass production. Final report, 1987--1992

This project was initiated in 1978 to serve three objectives: (1) develop genetically improved poplar cultivars offering increased productivity under short-rotation culture; (2) identify the major components of productivity in poplar and determine ways in which they can be manipulated, genetically and culturally; and (3) engage in technology transfer to regional industry and agencies so as to make poplar culture in the Pacific Northwest economically feasible. The project is aimed at capturing natural variation in the native black cottonwood. Populus trichocarpa T & G, and enhancing it through selective breeding. Major emphasis has been placed on hybridization of black cottonwood with P deltoides and P maximowiczii, more recently with p nigra. First-generation (F{sub 1}) hybrids have consistently outperformed black cottonwood by a factor of 1.5.-2. The high yields of woody biomass obtained from these clonally propagated hybrids, in rotations of 4-7 years, have fostered the establishment of large-scale plantations by the pulp and paper industry in the region. Physiological studies have helped to elucidate hybrid superiority and several of the underlying mechanisms.
Date: April 30, 1993
Creator: Stettler, R. F.; Hinckley, T. M.; Heilman, P. E. & Bradshaw, H. D., Jr.
Object Type: Report
System: The UNT Digital Library
Grandview Tribune (Grandview, Tex.), Vol. 98, No. 39, Ed. 1 Friday, April 30, 1993 (open access)

Grandview Tribune (Grandview, Tex.), Vol. 98, No. 39, Ed. 1 Friday, April 30, 1993

Weekly newspaper from Grandview, Texas that includes local, state, and national news along with advertising.
Date: April 30, 1993
Creator: Magness, Jack, Jr.
Object Type: Newspaper
System: The Portal to Texas History
The Harper Citizen (Harper, Tex.), Vol. 1, No. 39, Ed. 1 Friday, April 30, 1993 (open access)

The Harper Citizen (Harper, Tex.), Vol. 1, No. 39, Ed. 1 Friday, April 30, 1993

Weekly newspaper from Harper, Texas that includes local, state, and national news along with advertising.
Date: April 30, 1993
Creator: unknown
Object Type: Newspaper
System: The Portal to Texas History
The Hopkins County Echo (Sulphur Springs, Tex.), Vol. 118, No. 18, Ed. 1 Friday, April 30, 1993 (open access)

The Hopkins County Echo (Sulphur Springs, Tex.), Vol. 118, No. 18, Ed. 1 Friday, April 30, 1993

Weekly newspaper from Sulphur Springs, Texas that includes local, state, and national news along with advertising.
Date: April 30, 1993
Creator: Keys, Clarke & Lamb, Bill
Object Type: Newspaper
System: The Portal to Texas History