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1,350 Matching Results
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Structure functions: Their status and implications
I discuss the current status of structure functions. Attention is given to the uncertainties in them and the implications of these uncertainties for experimental predictions. I indicate which experiments are capable of removing these uncertainties. 17 refs., 17 figs., 1 tab.
Date:
September 29, 1988
Creator:
Hinchliffe, I.
Object Type:
Article
System:
The UNT Digital Library
Novel concept development of an internal recirculation catalyst for mild gasification
The objective of this program is to provide an overall evaluation of a novel process concept for mild gasification by completing work in three major tasks: (1) Laboratory-Scale Experiments, (2) Bench-Scale Tests, and (3) Proof-of-Concept Tests and Evaluation (optional). During this quarter, experimental work involving zinc chloride as a potential recirculating catalyst for coal, initiated in the previous quarter, was continued. The design of an all-quartz laboratory-scale isothermal free-fall reactor was completed, and construction was begun. One free-fall experiment was performed in an existing stainless-steel free-fall reactor with methanol-treated Illinois No. 6 high-volatile bituminous coal. 1 ref., 2 figs., 2 tabs.
Date:
September 1, 1988
Creator:
Knight, R. A. & Babu, S. P.
Object Type:
Report
System:
The UNT Digital Library
[AIDS Update Float at Alan Ross Texas Freedom Parade]
Photograph of the AIDS Update float in the 1988 Alan Ross Texas Freedom Parade. The AIDS Resource Center banner can be seen in the back right of the photo. Riders in the car include Dave Lewis (right), editor, Rodd Gray (as Patti le Plae Safe), columnist, and Dave's partner, whose name is unknown.
Date:
September 1988
Creator:
unknown
Object Type:
Photograph
System:
The UNT Digital Library
[Memo from Rogers Redding to Jim Miller, September 27, 1988]
Memo from Rogers Redding to Jim Miller, on September 27, 1988, sending him a summary of the most recent meeting of the Texas Academy of Mathematics and Science Advisory Board.
Date:
September 27, 1988
Creator:
Redding, Rogers W.
Object Type:
Letter
System:
The UNT Digital Library
Proceedings of the Focused Research Program on Spectral Theory and Boundary Value Problems, Vol. 2: Singular Differential Equations
Report on research and exchange of views among 24 mathematicians for investigations of the theory of singular Sturm-Liouville equations, the asymptotic analysis of the Titchmarsh-Weyl m(λ)-coefficient, and the qualitative theory of non-linear differential equations.
Date:
September 1988
Creator:
Kaper, H. G.; Kwong, Man Kam & Zettl, Anton
Object Type:
Report
System:
The UNT Digital Library
X-Ray Computed Tomography for Nondestructive Evaluation of Advanced Structural Ceramics
Report on the current status of X-ray computed tomography and the principal advantages of CT scanning.
Date:
September 1988
Creator:
Ellingson, William A. & Vannier, Michael W.
Object Type:
Report
System:
The UNT Digital Library
Searching for Fixed Point Combinators by Using Automated Theorem Proving : a Preliminary Report
In this report, we establish that the use of an automated theorem- proving program to study deep questions from mathematics and logic is indeed an excellent move. Among such problems, we focus mainly on that concerning the construction of fixed point combinators--a problem considered by logicians to be significant and difficult to solve, and often computationally intensive and arduous. To be a fixed point combinator, THETA must satisfy the equation THETAx = x(THETAx) for all combinators x. The specific questions on which we focus most heavily ask, for each chosen set of combinators, whether a fixed point combinator can be constructed from the members of that set. For answering questions of this type, we present a new, sound, and efficient method, called the kernel method, which can be applied quite easily by hand and very easily by an automated theorem-proving program. For the application of the kernel method by a theorem-proving program, we illustrate the vital role that is played by both paramodulation and demodulation--two of the powerful features frequently offered by an automated theorem-proving program for treating equality as if it is ''understood.'' We also state a conjecture that, if proved, establishes the completeness of the kernel method. From …
Date:
September 1988
Creator:
Wos, Larry
Object Type:
Report
System:
The UNT Digital Library
Users' Guide to Toolpack/1 Tools for Data Dependency Analysis and Program Transformation
A guide to the use of a collection of software tools for data dependency analysis and program transformation, written in Fortran and for a Unix environment.
Date:
September 1988
Creator:
Cowell, Wayne R.
Object Type:
Report
System:
The UNT Digital Library
[Letter from Donald J. Maison, Jr. to Ronald Woodroof - September 7, 1988]
Photocopy of a letter from Donald J. Maison, Jr. to Ronald D. Woodroof clarifying legal advice that he provided to Woodroof regarding a civil action case. He also mentions a phone call regarding a drug protocol that they had discussed. The subject line reads "Dallas Gay Alliance, Inc., et al. vs. Dallas County Hospital District, et al., Civil Action Number CA 3-88-1394-H, In the United States District Court for the Northern District Texas - Dallas Division."
Date:
September 7, 1988
Creator:
Maison, Donald J., Jr.
Object Type:
Letter
System:
The UNT Digital Library
[Letter from Ronald Woodroof to William Waybourn - September 6, 1988]
Photocopy of a letter from Ronald D. Woodroof to William Waybourn, president of Dallas Gay Alliance, regarding the pneumococcal vaccine. It includes a copy of a press release from the Dallas County Health Department regarding the vaccine.
Date:
September 6, 1988
Creator:
Woodroof, Ronald D.
Object Type:
Letter
System:
The UNT Digital Library
Precollege Newsletter, Number 10, September 1, 1988
Issue of the Precollege Newsletter from the Study of Mathematically Precocious Youths at Johns Hopkins University. It discusses girls in gifted programs, the University of Chicago, Rice University, Stanford University, how to pay for college tuition, and other subjects related to college programs for gifted children.
Date:
September 1, 1988
Creator:
Stanley, Julian C.; Brody, Linda; Lupkowski, Ann E.; Sandhofer, Lois; Wade, Mary Beth & Stanley, Barbara
Object Type:
Journal/Magazine/Newsletter
System:
The UNT Digital Library
Texas Academy of Mathematics and Science Minutes of the Advisory Board Meeting, September 21, 1988
Minutes from the September 21, 1988 meeting of the Texas Academy of Mathematics and Science Advisory Board, discussing the first class of incoming students.
Date:
September 21, 1988
Creator:
unknown
Object Type:
Text
System:
The UNT Digital Library
[University Academy Contact List]
List of addresses for science and mathematics academies at various universities, including names and information for the presidents of the universities and the academy contacts.
Date:
September 1, 1988
Creator:
Texas Academy of Mathematics and Science
Object Type:
Text
System:
The UNT Digital Library
[Memo from Rogers Redding to Jim Miller, September 27, 1988]
Memo from Rogers Redding to Jim Miller, on September 27, 1988, with an attached summary of a recent meeting of the Advisory Board to the Texas Academy of Mathematics and Science. A list of the hometowns of the students, and a budget are attached.
Date:
September 27, 1988
Creator:
Redding, Rogers W.
Object Type:
Letter
System:
The UNT Digital Library
The coupling of stimulated Raman and Brillouin scattering in a plasma
The observation of an anti-Stokes satellite in the spectrum of light backscattered from a CO{sub 2} laser plasma is reported. Its origin is found to be Thomson scattering of the incident light from a counterpropagating mode-coupled plasma wave. The parent electron and ion waves in the mode-coupling process were driven by stimulated Raman and Brillouin backscattering. The parent and daughter plasma waves were detected by ruby laser Thomson scattering. A computer simulation modeling the experiment shows further cascading of the Stokes backscattered light to lower frequencies, apparently due to its rescattering by another, higher phase velocity, counterpropagating coupled mode. Comparisons with theoretical predictions are presented. 16 refs., 4 figs.
Date:
September 19, 1988
Creator:
Umstadter, D.; Mori, W.B. & Joshi, C. (Lawrence Livermore National Lab., CA (USA))
Object Type:
Report
System:
The UNT Digital Library
New approaches to linear and nonlinear programming
This report describes technical progress during the past twelve months on DOE Contract DE-FG-87ER25030 and requests support for the third year. The project involves study of the theoretical properties and computational performance of techniques that solve linear and nonlinear programs by means of nonlinear transformations. The group at the Systems Optimization Laboratory (SOL) were the first to recognize the connection between Karmarkar's projective method and the logarithmic barrier method. It is now generally recognized that essentially all interior-point methods for linear programming inspired by Karmarkar's method are closely related to application of Newton's method to a sequence of barrier functions. Each barrier function is defined from the objective function and a barrier term that is infinite along the boundary of the feasible region. As the weight on the barrier term is reduced to zero, the solution of the subproblem becomes closer to the solution of the original problem.
Date:
September 1, 1988
Creator:
Murray, W. & Saunders, M.A.
Object Type:
Report
System:
The UNT Digital Library
Variable temperature effects on release rates of readily soluble nuclides
In this paper we study the effect of temperature on the release rate of readily soluble nuclides, as affected by a time-temperature dependent diffusion coefficient. In this analysis ground water fills the voids in the waste package at t = 0 and one percent of the inventories of cesium and iodine are immediately dissolved into the void water. Mass transfer resistance of partly failed container and cladding is conservatively neglected. The nuclides move through the void space into the surrounding rock under a concentration gradient. We use an analytic solution to compute the nuclide concentration in the gap or void, and the mass flux rate into the porous rock. 8 refs., 4 figs.
Date:
September 1, 1988
Creator:
Kim, C. L.; Light, W. B.; Lee, W. W. L.; Chambre, P. L.; Pigford, T. H. (Korea Advanced Energy Research Inst., Daeduk (Republic of Korea) & Lawrence Berkeley Lab, C A (USA))
Object Type:
Article
System:
The UNT Digital Library
Southwest Retort, Volume 41, Number 6, September 1988
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:
September 1988
Creator:
American Chemical Society. Dallas/Fort Worth Section.
Object Type:
Journal/Magazine/Newsletter
System:
The UNT Digital Library
Power On! New Tools for Teaching and Learning
This report examines developments in the use of computer-based technologies, analyzes key trends in hardware and software development, evaluates the capability of technology to improve learning in many areas, and explores ways to substantially increase student access to technology. The role of the teacher, teachers’ needs for training, and the impact of Federal support for educational technology research and development are reviewed as well.
Date:
September 1988
Creator:
United States. Congress. Office of Technology Assessment.
Object Type:
Report
System:
The UNT Digital Library
Reducing Launch Operation Costs: New Technologies and Practices
This technical memorandum explains, the United States has spent relatively little effort in applying them to operations. Just as important as cost saving technologies are appropriate management methods, or strategies, to put these technologies to work. In some cases, OTA has found, cost savings could be achieved by streamlining operations and reducing the burden of documentation and reporting requirements that have slowly expanded over the years.
Date:
September 1988
Creator:
United States. Congress. Office of Technology Assessment.
Object Type:
Report
System:
The UNT Digital Library
Enhancing Agriculture in Africa: A Role for U.S. Development Assistance
This report has gathered information on agricultural production throughout Sub-Saharan Africa, looked closely at specific, promising technologies such as agroforestry, small-scale irrigation, soil and water management, and the improved use of animals. As a result, it seems clear that low-resource agriculture has a sizable potential to contribute to increased African food security. Also, it is clear that low-resource agriculture must be enhanced in order to reach its full potential. This report identifies ways that U.S. development assistance can aid this process.
Date:
September 1988
Creator:
United States. Congress. Office of Technology Assessment.
Object Type:
Report
System:
The UNT Digital Library
Gearing Up for Safety: Motor Carrier Safety in a Competitive Environment
This report contains the results of that analysis. A review of critical intergovernmental issues for the Department of Transportation and State Governments has been added to the basic questions about the adequacy of Federal standards and programs. During the course of the study, it became clear that the report would have to consider how policy is implemented, and consequently, the relationship between the Department of Transportation and the States, which have become important partners in Federal safety programs.
Date:
September 1988
Creator:
United States. Congress. Office of Technology Assessment.
Object Type:
Report
System:
The UNT Digital Library
Biology, medicine, and the Bill of Rights: special report
This special report considers the implications of new developments in biological sciences for the freedoms and protections embedded in our Bill of Rights. It is one of a series of publications coming from OTA’s Constitutional Bicentennial Project, begun in 1987 at the request of the House Committee on the Judiciary and its Subcommittee on Courts, Civil Liberties, and the Administration of Justice.
Date:
September 1988
Creator:
United States. Congress. Office of Technology Assessment.
Object Type:
Report
System:
The UNT Digital Library
Copper, technology & competitiveness
This report responds to a request from the Technology Assessment Board—the congressional oversight body for the Office of Technology Assessment (OTA)–prompted by the balance-of-trade and other economic implications of these events. The report describes the conditions the domestic and world copper industry faced during the early 1980s. It documents the steps U.S. copper companies took to improve their position so dramatically in the mid-980s, and evaluates the industry’s present and possible future status, including relative costs of production and the elements of those costs.
Date:
September 1988
Creator:
United States. Congress. Office of Technology Assessment.
Object Type:
Report
System:
The UNT Digital Library