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84 Matching Results
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Anaerobic bioprocessing of low-rank coals. [Veillonella alcalescens and Propionibacterium acidipropionici]
The overall goal of this project is to find biological methods to remove carboxylic functionalities from low-rank coals under ambient conditions and to assess the properties of these modified coals towards coal liquefaction. The main objectives of this quarter were: (1) continuation of microbial consortia development, (2) evaluation of the isolated organisms for decarboxylation, (3) selection of best performing culture (known cultures vs. new isolates), and (4) coal decarboxylation using activated carbon as blanks. The project began on September 12, 1990.
Date:
January 30, 1992
Creator:
Jain, M. K.; Narayan, R. & Han, O.
Object Type:
Report
System:
The UNT Digital Library
Energy transfer properties and mechanisms
The overall objective of the research carried out under this program is to determine the principles of collisional energy transfer and use them in predictive models and theories. In order to accomplish this goal, energy transfer properties must be determined and then analyzed to discern the underlying principles involved. In this laboratory, the experimental determination of energy transfer parameters is based on techniques that use physical properties to monitor the amount of energy in excited molecules. These techniques differ from chemical methods, based on unimolecular reaction studies, which are susceptible to interferences from complex chemical mechanisms and other complications. The physical methods have their own weaknesses and limitations, however, and much of our effort has been directed toward gaining a better understanding of these deficiencies. Two physical techniques have been proved to be particularly useful: time-resolved infrared fluorescence and time-dependent thermal lensing. As described later, we will shortly begin work using resonance enhanced multiphoton ionization techniques to investigate energy transfer in bulbs and half collisions'' in free jets. We also have been completing some calculational efforts to model formation of polycyclic aromatic hydrocarbons in stellar atmospheres.
Date:
January 30, 1992
Creator:
Barker, J. R.
Object Type:
Report
System:
The UNT Digital Library
Development of a reburning boiler process model
The overall objective of this program is to integrate EER's expertise in boiler reburning performance evaluation into a package of analytical computer tools. Specific objectives of the program are to develop a computational capability with the following features: (1) can be used to predict the impact of gas reburning application on thermal conditions in the boiler radiant furnace, and on overall boiler performance; (2) can estimate gas reburning NO{sub x} reduction effectiveness based on specific reburning configurations and furnace/boiler configurations; (3) can be used as an analytical tool to evaluate the impact of boiler process parameters (e.g., fuel switching and changes in boiler operating conditions) on boiler thermal performance; (4) is adaptable to most boiler designs (tangential and wall fire boilers) and a variety of fuels (solid, liquid, gaseous and slurried fuels); (5) is sufficiently user friendly to be exercisable by engineers with a reasonable knowledge of boilers, and with reasonable computer skills. Here, user friendly'' means that the user will be guided by computer codes during the course of setting up individual input files for the boiler performance model.
Date:
January 30, 1992
Creator:
Wu, K. T.
Object Type:
Report
System:
The UNT Digital Library
Enhancement of surface properties for coal beneficiation
This report will focus on means of pyrite removal from coal using surface-based coal cleaning technologies. The major subjects being addressed in this study are the natural and modulated surface properties of coal and pyrite and how they may best be utilized to facilitate their separation using advanced surface-based coal cleaning technology. Emphasis is based on modified flotation and oil agglomerative processes and the basic principles involved. The four areas being addressed are: (1) Collectorless flotation of pyrite; (2) Modulation of pyrite and coal hydrophobicity; (3) Emulsion processes and principles; (4) Evaluation of coal hydrophobicity.
Date:
January 30, 1992
Creator:
Chander, S. & Aplan, F.F.
Object Type:
Report
System:
The UNT Digital Library
The Tulia Herald (Tulia, Tex.), Vol. 84, No. 5, Ed. 1 Thursday, January 30, 1992
Weekly newspaper from Tulia, Texas that includes local, state and national news along with extensive advertising.
Date:
January 30, 1992
Creator:
Reynolds, Jim
Object Type:
Newspaper
System:
The Portal to Texas History
Cherokeean/Herald (Rusk, Tex.), Vol. 143, No. 52, Ed. 1 Thursday, January 30, 1992
Weekly newspaper from Rusk, Texas that includes local, state and national news along with extensive advertising.
Date:
January 30, 1992
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Energy transfer properties and mechanisms. Technical progress report
The overall objective of the research carried out under this program is to determine the principles of collisional energy transfer and use them in predictive models and theories. In order to accomplish this goal, energy transfer properties must be determined and then analyzed to discern the underlying principles involved. In this laboratory, the experimental determination of energy transfer parameters is based on techniques that use physical properties to monitor the amount of energy in excited molecules. These techniques differ from chemical methods, based on unimolecular reaction studies, which are susceptible to interferences from complex chemical mechanisms and other complications. The physical methods have their own weaknesses and limitations, however, and much of our effort has been directed toward gaining a better understanding of these deficiencies. Two physical techniques have been proved to be particularly useful: time-resolved infrared fluorescence and time-dependent thermal lensing. As described later, we will shortly begin work using resonance enhanced multiphoton ionization techniques to investigate energy transfer in bulbs and ``half collisions`` in free jets. We also have been completing some calculational efforts to model formation of polycyclic aromatic hydrocarbons in stellar atmospheres.
Date:
January 30, 1992
Creator:
Barker, J. R.
Object Type:
Report
System:
The UNT Digital Library
Enhancement of surface properties for coal beneficiation. Final report
This report will focus on means of pyrite removal from coal using surface-based coal cleaning technologies. The major subjects being addressed in this study are the natural and modulated surface properties of coal and pyrite and how they may best be utilized to facilitate their separation using advanced surface-based coal cleaning technology. Emphasis is based on modified flotation and oil agglomerative processes and the basic principles involved. The four areas being addressed are: (1) Collectorless flotation of pyrite; (2) Modulation of pyrite and coal hydrophobicity; (3) Emulsion processes and principles; (4) Evaluation of coal hydrophobicity.
Date:
January 30, 1992
Creator:
Chander, S. & Aplan, F. F.
Object Type:
Report
System:
The UNT Digital Library
Anaerobic bioprocessing of low-rank coals. Quarterly progress report, October 1--December 31, 1991
The overall goal of this project is to find biological methods to remove carboxylic functionalities from low-rank coals under ambient conditions and to assess the properties of these modified coals towards coal liquefaction. The main objectives of this quarter were: (1) continuation of microbial consortia development, (2) evaluation of the isolated organisms for decarboxylation, (3) selection of best performing culture (known cultures vs. new isolates), and (4) coal decarboxylation using activated carbon as blanks. The project began on September 12, 1990.
Date:
January 30, 1992
Creator:
Jain, M. K.; Narayan, R. & Han, O.
Object Type:
Report
System:
The UNT Digital Library
Texas Attorney General Opinion: DM-79
Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Dan Morales, regarding a legal question submitted for clarification: Whether a juvenile board created pursuant to chapter 152 of the Human Resource Code has the power to hire and discharge employees of a juvenile probation department after it has employed a chief juvenile probation officer (RQ-136)
Date:
January 30, 1992
Creator:
Texas. Attorney-General's Office.
Object Type:
Text
System:
The Portal to Texas History
Texas Attorney General Opinion: DM-80
Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Dan Morales, regarding a legal question submitted for clarification: Whether a municipal industrial development corporation may use funds generated by a sales tax for the purpose of acquiring, constructing, and operating a “for profit” hospital of clinic (RQ-101)
Date:
January 30, 1992
Creator:
Texas. Attorney-General's Office.
Object Type:
Text
System:
The Portal to Texas History
Texas Attorney General Opinion: DM-81
Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Dan Morales, regarding a legal question submitted for clarification: Validity of a rider to the General Appropriations Act that requires certain employees of state agencies to submit financial statements for review and approval by the board or commission to which the employees are responsible (RQ-198)
Date:
January 30, 1992
Creator:
Texas. Attorney-General's Office.
Object Type:
Text
System:
The Portal to Texas History
Texas Attorney General Opinion: DM-82
Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Dan Morales, regarding a legal question submitted for clarification: Whether the Corpus Christi Municipal Court has jurisdiction in certain cases involving the issuance of bad checks (RQ-222)
Date:
January 30, 1992
Creator:
Texas. Attorney-General's Office.
Object Type:
Text
System:
The Portal to Texas History
Texas Attorney General Opinion: DM-83
Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Dan Morales, regarding a legal question submitted for clarification: Application of Article III, section 47(b), of the Texas Constitution, which imposes limitations on the kinds of organizations that may conduct bingo games (RQ-255)
Date:
January 30, 1992
Creator:
Texas. Attorney-General's Office.
Object Type:
Text
System:
The Portal to Texas History
Texas Attorney General Opinion: DM-84
Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Dan Morales, regarding a legal question submitted for clarification: Whether the owner of a restaurant in a dry area violates section 101.31 of the Alcoholic Beverage Code by giving away wine to patrons or using alcoholic beverages for cooking (RQ-38)
Date:
January 30, 1992
Creator:
Texas. Attorney-General's Office.
Object Type:
Text
System:
The Portal to Texas History
Development of a reburning boiler process model. First quarterly progress report, October 1, 1991--December 31, 1991
The overall objective of this program is to integrate EER`s expertise in boiler reburning performance evaluation into a package of analytical computer tools. Specific objectives of the program are to develop a computational capability with the following features: (1) can be used to predict the impact of gas reburning application on thermal conditions in the boiler radiant furnace, and on overall boiler performance; (2) can estimate gas reburning NO{sub x} reduction effectiveness based on specific reburning configurations and furnace/boiler configurations; (3) can be used as an analytical tool to evaluate the impact of boiler process parameters (e.g., fuel switching and changes in boiler operating conditions) on boiler thermal performance; (4) is adaptable to most boiler designs (tangential and wall fire boilers) and a variety of fuels (solid, liquid, gaseous and slurried fuels); (5) is sufficiently user friendly to be exercisable by engineers with a reasonable knowledge of boilers, and with reasonable computer skills. Here, ``user friendly`` means that the user will be guided by computer codes during the course of setting up individual input files for the boiler performance model.
Date:
January 30, 1992
Creator:
Wu, K. T.
Object Type:
Report
System:
The UNT Digital Library
Information hiding in parallel programs
A fundamental principle in program design is to isolate difficult or changeable design decisions. Application of this principle to parallel programs requires identification of decisions that are difficult or subject to change, and the development of techniques for hiding these decisions. We experiment with three complex applications, and identify mapping, communication, and scheduling as areas in which decisions are particularly problematic. We develop computational abstractions that hide such decisions, and show that these abstractions can be used to develop elegant solutions to programming problems. In particular, they allow us to encode common structures, such as transforms, reductions, and meshes, as software cells and templates that can reused in different applications. An important characteristic of these structures is that they do not incorporate mapping, communication, or scheduling decisions: these aspects of the design are specified separately, when composing existing structures to form applications. This separation of concerns allows the same cells and templates to be reused in different contexts.
Date:
January 30, 1992
Creator:
Foster, I.
Object Type:
Report
System:
The UNT Digital Library
San Antonio Register (San Antonio, Tex.), Vol. 60, No. 39, Ed. 1 Thursday, January 30, 1992
Weekly newspaper from San Antonio, Texas that includes local, state, and national news along with advertising.
Date:
January 30, 1992
Creator:
Glosson, Edwin
Object Type:
Newspaper
System:
The Portal to Texas History
The Albany News (Albany, Tex.), Vol. 116, No. 34, Ed. 1 Thursday, January 30, 1992
Weekly newspaper from Albany, Texas that includes local, county, and state news along with extensive advertising.
Date:
January 30, 1992
Creator:
Lucas, Donnie A.
Object Type:
Newspaper
System:
The Portal to Texas History
The Albany News (Albany, Tex.), Vol. 116, No. 34, Ed. 1 Thursday, January 30, 1992
Weekly newspaper from Albany, Texas that includes local, county, and state news along with extensive advertising.
Date:
January 30, 1992
Creator:
Lucas, Donnie A.
Object Type:
Newspaper
System:
The Portal to Texas History
[News Clip: Nanny]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date:
January 30, 1992, 10:00 p.m.
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
The Teague Chronicle (Teague, Tex.), Vol. 85, No. 35, Ed. 1 Thursday, January 30, 1992
Weekly newspaper from Teague, Texas that includes local, state, and national news along with advertising.
Date:
January 30, 1992
Creator:
Massey, Steve
Object Type:
Newspaper
System:
The Portal to Texas History
The Olney Enterprise (Olney, Tex.), Vol. 83, No. 5, Ed. 1 Thursday, January 30, 1992
Weekly newspaper from Olney, Texas that includes local, state, and national news along with advertising.
Date:
January 30, 1992
Creator:
Penn, David H.
Object Type:
Newspaper
System:
The Portal to Texas History
Polk County Enterprise (Livingston, Tex.), Vol. 110, No. 9, Ed. 1 Thursday, January 30, 1992
Semi-weekly newspaper from Livingston, Texas that includes local, state and national news along with advertising.
Date:
January 30, 1992
Creator:
White, Barbara
Object Type:
Newspaper
System:
The Portal to Texas History