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1,370 Matching Results
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Automatic lighting controls demonstration
The purpose of this work was to demonstrate, in a real building situation, the energy and peak demand reduction capabilities of an electronically ballasted lighting control system that can utilize all types of control strategies to efficiently manage lighting. The project has demonstrated that a state-of-the-art electronically ballasted dimmable lighting system can reduce energy and lighting demand by as least 50% using various combinations of control strategies. By reducing light levels over circulation areas (tuning) and reducing after hours light levels to accommodate the less stringent lighting demands of the cleaning crew (scheduling), lighting energy consumption on weekdays was reduced an average of 54% relative to the initial condition. 10 refs., 14 figs., 3 tabs.
Date:
March 1, 1990
Creator:
Rubinstein, F. & Verderber, R.
Object Type:
Report
System:
The UNT Digital Library
Molecular biological enhancement of coal biodesulfurization. [Rhodococcus]
The objective of this project is to produce one or more microorganisms capable of removing the organic and inorganic sulfur in coal. The original specific technical objectives of the project were to: Clone and characterize the genes encoding the enzymes of the 4S'' pathway (sulfoxide/sulfone/sulfonate/sulfate) for release of organic sulfur from coal; Return multiple copies of genes to the original host to enhance the biodesulfurization activity of that organism; Transfer this pathway into a fast-growing chemolithotrophic bacterium; Conduct a batch-mode optimization/analysis of scale-up variables.
Date:
March 15, 1990
Creator:
Litchfield, J. H.; Fry, I.; Wyza, R. E.; Palmer, D. T.; Zupancic, T. J. & Conkle, H. N.
Object Type:
Report
System:
The UNT Digital Library
Surveillance of 18 Hz and 60 Hz components of ground motion at the APS site
The objectives of this study are to determine the location and source of the 18- and 60-Hz vibration and to eliminate or reduce its amplitude in the APS Facility. To accomplish this it is necessary to know the time of occurrence and then, to utilize triangulation methods to identify the location of the source. It its time sequence is known, it may be possible to correlate it with the operation of some equipment at or near the site. Therefore, a major effort was made to obtain the time sequence and is the basis of this note.
Date:
March 1, 1990
Creator:
Jendrzejczyk, J.A.; Wambsganss, M.W. & Smith, R.K.
Object Type:
Report
System:
The UNT Digital Library
High temperature catalytic membrane reactors
Current state-of-the-art inorganic oxide membranes offer the potential of being modified to yield catalytic properties. The resulting modules may be configured to simultaneously induce catalytic reactions with product concentration and separation in a single processing step. Processes utilizing such catalytically active membrane reactors have the potential for dramatically increasing yield reactions which are currently limited by either thermodynamic equilibria, product inhibition, or kinetic selectivity. Examples of commercial interest include hydrogenation, dehydrogenation, partial and selective oxidation, hydrations, hydrocarbon cracking, olefin metathesis, hydroformylation, and olefin polymerization. A large portion of the most significant reactions fall into the category of high temperature, gas phase chemical and petrochemical processes. Microporous oxide membranes are well suited for these applications. A program is proposed to investigate selected model reactions of commercial interest (i.e. dehydrogenation of ethylbenzene to styrene and dehydrogenation of butane to butadiene) using a high temperature catalytic membrane reactor. Membranes will be developed, reaction dynamics characterized, and production processes developed, culminating in laboratory-scale demonstration of technical and economic feasibility. As a result, the anticipated increased yield per reactor pass economic incentives are envisioned. First, a large decrease in the temperature required to obtain high yield should be possible because of the reduced driving force …
Date:
March 1, 1990
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
New approaches to linear and nonlinear programming
During the last twelve months, research has concentrated on barrier- function methods for linear programming (LP) and quadratic programming (QP). Some ground-work for the application of barrier methods to nonlinearly constrained problems has also begun. In our previous progress report we drew attention to the difficulty of developing robust implementations of barrier methods for LP. We have continued to refine both the primal algorithm and the dual algorithm. We still do not claim that the barrier algorithms are as robust as the simplex method; however, the dual algorithm has solved all the problems in our extensive test set. We have also gained some experience with using the algorithms to solve aircrew scheduling problems.
Date:
March 1, 1990
Creator:
Murray, W. & Saunders, M.A.
Object Type:
Report
System:
The UNT Digital Library
Cross-flow, filter-sorbent catalyst for particulate, SO sub 2 and NO sub x control
This synopsis describes a new concept for integrated pollutant control: a cross-flow filter comprised of layered, gas permeable membranes that act as a particulate filter, an SO{sub 2} sorbent, and a NO{sub x} reduction catalyst.
Date:
March 1, 1990
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
OTTER 2.0 Users Guide
OTTER (Organized Techniques for Theorem-proving and Effective Research) is a resolution-style theorem-proving program for first-order logic with equality. OTTER includes the inference rules binary resolution, hyperresolution, URresolution, and binary paramodulation. Some of its other abilities are conversion from first-order formulas to clauses, forward and back subsumption, factoring, weighting, answer literals, term ordering, forward and back demodulation, evaluable functions and predicates, and Knuth-Bendix completion. OTTER is coded in C, it is free, and it is portable to many different kinds of computers.
Date:
March 1990
Creator:
McCune, William W.
Object Type:
Report
System:
The UNT Digital Library
Annual Technical Report
Highlights of the Chemical Technology (CMT) Division's activities during 1989 are presented. In this period, CMT conducted research and development in the following areas: (1) electrochemical technology, including high-performance batteries (mainly lithium/iron sulfide and sodium/metal chloride), aqueous batteries (lead-acid and nickel/iron), and advanced fuel cells with molten carbonate and solid oxide electrolytes; (2) coal utilization, including the heat and seed recovery technology for coal-fired magnetohydrodynamics plants and the technology for fluidized-bed combustion; (3) method, for recovery of energy from municipal waste and techniques for treatment of hazardous organic waste; (4) nuclear technology related to a process for separating and recovering transuranic elements from nuclear waste and for producing 99Mo from low-enriched uranium targets, the recovery processes for discharged fuel and the uranium blanket in a sodium-cooled fast reactor (the Integral Fast Reactor), and waste management; and (5) physical chemistry of selected materials in environments simulating those of fission and fusion energy systems.
Date:
March 1990
Creator:
Argonne National Laboratory. Chemical Technology Division.
Object Type:
Report
System:
The UNT Digital Library
Southwest Retort, Volume 44, Number 3, March 1990
This publication of the Dallas-Fort Worth Section of the American Chemical Society includes information about research, prominent scientist, organizational business, and various other stories of interest to the community.
Date:
March 1990
Creator:
American Chemical Society. Dallas/Fort Worth Section.
Object Type:
Journal/Magazine/Newsletter
System:
The UNT Digital Library
Video movie making using remote procedure calls and 4BSD Unix sockets on Unix, UNICOS, and MS-DOS systems
We describe the use of the Sun Remote Procedure Call and Unix socket interprocess communication mechanisms to provide the network transport for a distributed, client-server based, image handling system. Clients run under Unix or UNICOS and servers run under Unix or MS-DOS. The use of remote procedure calls across local or wide-area networks to make video movies is addressed.
Date:
March 1, 1990
Creator:
Robertson, D.W.; Johnston, W.E.; Hall, D.E. & Rosenblum, M.
Object Type:
Article
System:
The UNT Digital Library
Matching Funds Requirement
A matching funds requirement report sent to Robert Decker of the William E. Scott Foundation to consider making a one year grant of $10,000 to assist North Texas Institute for Educators on the Visual Arts in meeting their matching grant from the Getty Center for Education in the Arts.
Date:
March 9, 1990
Creator:
North Texas Institute for Educators on the Visual Arts
Object Type:
Report
System:
The UNT Digital Library
[Letters to Robert M. Lansford and Bayard H. Friedman from Jack Davis, March 9, 1990]
Photocopy of letters from Jack Davis, co-director of North Texas Institute for Educators on the Visual Arts to Robert M. Lansford, Senior Vice President and Trust Officer of TEAMBANK and Bayard H. Friedman, Co-Trustee of Mary Potishman Lard Trust Agency. The letter is in regards to Lansford's promise to Davis to give Friedman the grant support proposal for North Texas Institute for Educators on the Visual Arts. The letter to Friedman goes into details about the program and what support they are seeking from the Mary Potishman Lard Trust Agency. Included with the proposal is a matching fund requirement summary and details on what discipline-based art education is long with a list of the Board of Regents for the University and a statement which verifies that the University is exempt from federal tax income.
Date:
March 9, 1990
Creator:
Davis, Donald Jack
Object Type:
Letter
System:
The UNT Digital Library
PETC Review, Issue 1, March 1990
This issue of PETC Review contains short discussion on the following topics: (1) SO{sub 2} Control and Duct Injection: A Solution to Acid Rain''--research on duct injection; (2) Acid Rain Abatement and Advanced Coal Cleaning: A Precombustion Option''--research on selective agglomeration and advanced froth flotation; (3) Two-Stage Liquefaction of Coal''--PETC's efforts to further the viability of this technology; (4) Clean Coal Technology: Energy and the Environment''--the Clean Coal Technology Program is demonstrating technologies that show coal can be both efficient and environmentally acceptable. Supplemental sections on events, special focuses, calendars, publication lists, etc. are also included.
Date:
March 1, 1990
Creator:
Blaustein, B.; Reiss, J.; Martin, G.; Hammer, D. & Mills, J. (eds.)
Object Type:
Report
System:
The UNT Digital Library
[Letter from Bayard H. Friedman to Jack Davis, March 19, 1990]
Photocopy of a letter from Bayard H. Friedman, Mary Potishman Lard Trust, to Jack Davis, Co-Director of North Texas Institute for Educators on the Visual Arts. The letter is in regards to previous correspondence and a grant support proposal, however, Friedman states that the foundation has other current commitments and cannot assist.
Date:
March 19, 1990
Creator:
Friedman, Bayard H.
Object Type:
Letter
System:
The UNT Digital Library
[Letter from Thomas F. Beech to Jack Davis, March 1, 1990]
Photocopy of a letter from Thomas F. Beech, executive vice president of the Tandy Foundation to Jack Davis, co-director of North Texas Institute for Educators on the Visual Arts. The letter is in regards that the Trustee of the Anne Burnett and Charles D. Foundation met to consider the proposal request submitted by North Texas Institute for Educators on the Visual Arts and unfortunately they are not able to provide the support for the project.
Date:
March 1, 1990
Creator:
Beech, Thomas F.
Object Type:
Letter
System:
The UNT Digital Library
[Letter from Jack Davis to Darlene Mann, March 9, 1990]
Photocopy of a letter from Jack Davis, co-director of North Texas Institute for Educators on the Visual Arts to Darlene Mann, Vice President, Trust and Investment Services at NCNB Texas. Davis thanks Mann for meeting with him and Joe Grisson on February 28 to discuss matching fund requirements for the North Texas Institute for Educators on the Visual Arts and send her all the information on the program and their primary goals along with a list of the Board of Regents for the University and a statement which verifies that the University is exempt from federal tax income.
Date:
March 9, 1990
Creator:
Davis, Donald Jack
Object Type:
Letter
System:
The UNT Digital Library
[Letter from Jack Davis to Robert W. Decker, March 9, 1990]
Photocopy of a letter from Jack Davis, co-director of North Texas Institute for Educators on the Visual Arts to Robert W. Decker, President and Treasure of the William E. Scott Foundation. The letter is in regards to previous correspondence where North Texas Institute for Educators on the Visual Arts hopes that the Scott Foundation will become a partner and contributor to the organization. In the letter Davis goes into details about the collaborations in the North Texas Institute for Educators on the Visual Arts project and their goal to reform education. Attached to the letter is the matching funds requirement report from other support. Also attached is the proposal of the art education program.
Date:
March 9, 1990
Creator:
Davis, Donald Jack
Object Type:
Letter
System:
The UNT Digital Library
Combustion characterization of beneficiated coal-based fuels
This three-year research project at Combustion Engineering, Inc. (CE), will assess the potential economic and environmental benefits derived from coal beneficiation by various advanced cleaning processes. The objectives of this program include the development of a detailed generic engineering data base, comprised of fuel combustion and ash performance data on beneficiated coal-based fuels (BCFs), which is needed to permit broad application. This technical data base will provide detailed information on fundamental fuel properties influencing combustion and mineral matter behavior as well as quantitative performance data on combustion, ash deposition, ash erosion, particulate collection, and gaseous and particulate emissions. Program objectives also address the application of this technical data base to predict performance impacts associated with firing BCFs in various commercial boiler designs as well as assessment of the economic implications of BCF utilization. Additionally, demonstration of this technology, with respect to large-scale fuel preparation, firing equipment operation, fuel performance, environmental impacts, and verification of prediction methodology, will be provided during field testing.
Date:
March 1, 1990
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Perceptions of the Sudanese Professional Working in Saudi Arabia on Migration and Economic Development of the Sudan
The brain drain emerged as a phenomenon in the Sudan in the early 1970's when a change in the political system was followed by a change in the economic situation. The oil price increases created a dynamic process that led to attractive employment conditions in the petroleum producing countries such as Saudi Arabia and to depressed economic conditions in the developing countries like the Sudan. The purposes of the study are to (a) obtain information on the Sudanese professionals working in Saudi Arabia, (b) determine what major factors influence their migration, and (c) to develop policy recommendations on the flow of migration from the Sudan. The population of this study were Sudanese professionals living in Saudi Arabia. Data were generated through surveying a sample of 300 subjects selected randomly from the defined population. A survey questionnaire based on the research questions was developed for this study. Data from 263 respondents were analyzed. The findings of the study suggest that the majority of the Sudanese professionals working in Saudi Arabia are male, between 30 to 40 years of age. They have many years of experience and a high level of qualifications. The factors that led to their migration are: (a) high …
Date:
March 1990
Creator:
Hamid, Adil A. (Adil Abdelaziz)
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Fish and Wildlife Service: Compensation to Local Governments
The Refuge Revenue Sharing Fund (RRSF) was enacted in response to the concern of local governments regarding losses to their tax base due to the presence of federally owned land under the jurisdiction of the Fish and Wildlife Service. This report outlines recent history of RRSF payment levels. It examines the RRSF and describes how the fund differs in its treatment of reserved and acquired lands under the jurisdiction of FWS. The report also examines the Payment in Lieu of Taxes (PILT) program in detail.
Date:
March 6, 1990
Creator:
Corn, M. Lynne
Object Type:
Report
System:
The UNT Digital Library
Agricultural Research and Technology Transfer Policies for the 1990s: a special report of OTA's assessment on emerging agricultural technology: issues for the 1990s
This report addresses the central issues in the debate of the 1990 Farm Bill. It was requested as part of a larger study examining emerging agricultural technologies and related issues for the 1990s by the Senate Committee on Agriculture, Nutrition, and Forestry and the House Committee on Agriculture.
Date:
March 1990
Creator:
United States. Congress. Office of Technology Assessment.
Object Type:
Report
System:
The UNT Digital Library
Computer Software and Intellectual Property
This background paper examines existing intellectual-property protection for computer software-copyrights, patents, and trade secrets—and provides an overview of the often conflicting views and concerns of various stakeholders. It was prepared in response to a request from the Subcommittee on Courts, Intellectual Property, and the Administration of Justice of the House Committee on the Judiciary.
Date:
March 1990
Creator:
United States. Congress. Office of Technology Assessment.
Object Type:
Report
System:
The UNT Digital Library
Coping With an Oiled Sea
In the aftermath of the Exxon Valdez oil spill in Alaska in March, 1989, a myriad of investigations were initiated to evaluate the causes of that accident and to propose remedies. The Office of Technology Assessment was asked to study the Nation’s oil spill clean-up capabilities and to assess the technologies for responding to such catastrophic spills in the future.
Date:
March 1990
Creator:
United States. Congress. Office of Technology Assessment.
Object Type:
Report
System:
The UNT Digital Library
Yakima/Klickitat Production Preliminary Design Report, Appendix C: Yakima and Klickitat Preliminary Engineering Reports.
This chapter describes the biological and physical fish culture requirements of the hatchery system from which the concepts for the design are formulated. It includes a discussion of the program goals for fish production in the Yakima Basin followed by a brief summary of selected sites. The biological criteria are presented for the water system, adult holding, incubation, rearing, and finally transportation and release. The biological criteria address the water and space requirements, the number and type of vessels, and the related support requirements. To be assured that the components of the system meet all program demands, each life phase from adult capture to the juvenile or smolt transfer into the acclimation sites is analyzed.
Date:
March 1, 1990
Creator:
Hill, CH2M & Associates., R.W. Beck and
Object Type:
Report
System:
The UNT Digital Library