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Automatic lighting controls demonstration (open access)

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] (open access)

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 (open access)

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 (open access)

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 (open access)

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 (open access)

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

Faculty Recital: 1990-03-06 - Faculty Chamber Music

Access: Use of this item is restricted to the UNT Community
Faculty recital performed at the UNT College of Music Recital Hall.
Date: March 6, 1990
Creator: Faculty Chamber Music
Object Type: Sound
System: The UNT Digital Library

Guest Artist Recital: 1990-03-21 - John D. White, piano

Access: Use of this item is restricted to the UNT Community
Guest artist recital performed at the UNT College of Music Recital Hall.
Date: March 21, 1990
Creator: White, John D.
Object Type: Sound
System: The UNT Digital Library

Faculty Recital: 1990-03-25 - Faculty Jazz Quintet

Access: Use of this item is restricted to the UNT Community
Jazz faculty recital performed at the UNT College of Music Recital Hall.
Date: March 25, 1990
Creator: Steinel, Mike; Riggs, Jim; Hamilton, Fred (Guitarist); Haerle, Dan & Soph, Ed
Object Type: Sound
System: The UNT Digital Library

Guest Artist Recital: 1990-03-27 - Brazos Baroque Ensemble

Access: Use of this item is restricted to the UNT Community
Guest artist recital performed at the UNT College of Music Recital Hall.
Date: March 27, 1990
Creator: Brazos Baroque Ensemble
Object Type: Sound
System: The UNT Digital Library
OTTER 2.0 Users Guide (open access)

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 (open access)

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 (open access)

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

[Photograph 2012.201.B0139.0207]

Photograph used for a story in the Daily Oklahoman newspaper.
Date: March 6, 1990
Creator: Hellstern, Paul
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0146.0162]

Photograph used for a newspaper owned by the Oklahoma Publishing Company. Caption: "John Cowan, OU Astronomer."
Date: March 29, 1990
Creator: Beckel, Jim
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0137.0459]

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Northeast's Cal Clinton drives for the basket during Saturday night's loss to Tulsa McLain for the class 4 A crown.."
Date: March 10, 1990
Creator: Hellstern, Paul
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0140.0528]

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Dr Jeff Baggett, left, and assistant Stacy Lorentz examine Sherry Brown during the Community Service Day Saturday."
Date: March 23, 1990
Creator: Hoke, Doug
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0146.0735]

Photograph used for a newspaper owned by the Oklahoma Publishing Company. Caption: "Oklahoma State's Althea Cox moves past Leslie Spicer of Michigan in Wednesday's NCAA Tournament opener at Gallagher-Iba Arena."
Date: March 14, 1990
Creator: Hoke, Doug
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0146.0736]

Photograph used for a newspaper owned by the Oklahoma Publishing Company. Caption: "Oklahoma State's Althea Cox moves past Leslie Spicer of Michigan in Wednesday's NCAA Tournament opener at Gallagher-Iba arena."
Date: March 14, 1990
Creator: Hoke, Doug
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0162.0552]

Photograph used for a newspaper owned by the Oklahoma Publishing Company.
Date: March 23, 1990
Creator: Sisney, Steve
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0162.0648]

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Say Ouch -- Tony Loughmiller receives a measles inoculation from Paula Reynolds, RN., Tuesday at a health department clinic at Our Savior Lutheran Church in Bethany."
Date: March 19, 1990
Creator: McDaniel, David
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0155.0680]

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Don and Lezlie Bales and David and Hilarie Dean, from left, arrive at the fund-raiser."
Date: March 31, 1990
Creator: Gooch, Steve
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0151.0203]

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "All-tournament first-teamer Angie Guffy of Ringwood guards Mooreland's Stacy Curry, a member of the second team, during Saturday's Class A girls championship game."
Date: March 2, 1990
Creator: Sisney, Steve
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0153.0094]

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Mike Daniel, a Cherokee-Creek-Seminole potter, explains a piece to Meghan Buchanan, Charles Richey and Di Le, from left, third and fourth-graders at Buchanan Elementary School in Oklahoma City, during an American Indian symposium Friday at the Oklahoma Historical Society."
Date: March 2, 1990
Creator: Klock, Roger
Object Type: Photograph
System: The Gateway to Oklahoma History