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Controlled blasting and its implications for the NNWSI project exploratory shaft
This report reviews controlled blasting techniques for shaft sinking. Presplitting and smooth blasting are the techniques of principal interest. Smooth blasting is preferred for the Nevada Nuclear Waste Storage Investigations exploratory shaft. Shaft damage can be monitored visually or by peak velocity measurements and refractive techniques. Damage into the rock should be limited to 3 ft. 40 refs., 22 figs., 7 tabs.
Date:
September 1, 1987
Creator:
Van Eeckhout, E.M.
Object Type:
Report
System:
The UNT Digital Library
A CAMAC system controlled by an IBM AT computer for time-resolved spectroscopy
An IBM AT computer interfaced to a small CAMAC system offers considerable power without the complexity and expense of a large general-purpose system. Our system for time-resolved spectroscopy features menu-driven FORTRAN-based software; high-resolution and high-speed (8K channels, 5-..mu..s fixed dead time) ADCs; segmentable histogram memories (24-bit counts) with large memory space for many histogram segments; independently variable separate histogram dwell times; remote control via a CAMAC serial highway; and ground isolation between the data acquisition equipment and control computer by means of fiber optics.
Date:
January 1, 1987
Creator:
Lindquist, L.O. & Moss, C.E.
Object Type:
Article
System:
The UNT Digital Library
Office of Technology Assessment List of Publications, January 1987
A catalog of Office of Technology Assessment (OTA) documents published through 1987.
Date:
January 1987
Creator:
Office of Technology Assessment
Object Type:
Text
System:
The UNT Digital Library
List processing software for the LeCroy 1821 Segment Manager Interface
Many experiments at Fermilab now include some FASTBUS electronics in their data readout. The software reported in this paper provides general support for the LeCroy 1821 interface. The list processing device drivers allow FASTBUS data to be read out efficiently into the Fermilab Computing Department supported data acquisition systems.
Date:
May 1, 1987
Creator:
Dorries, T.; Moore, C. & Pordes, R.
Object Type:
Article
System:
The UNT Digital Library
Injection through fractures
Tracer tests are conducted in geothermal reservoirs as an aid in forecasting thermal breakthrough of reinjection water. To interpret tracer tests, mathematical models have been developed based on the various transport mechanisms in these highly fractured reservoirs. These tracer flow models have been applied to interpret field tests. The resulting matches between the model and field data were excellent and the model parameters were used to estimate reservoir properties. However, model fitting is an indirect process and the model's ability to estimate reservoir properties cannot be judged solely on the quality of the match between field data and model predictions. The model's accuracy in determining reservoir characteristics must be independently verified in a closely controlled environment. In this study, the closely controlled laboratory environment was chosen to test the validity and accuracy of tracer flow models developed specifically for flow in fractured rocks. The laboratory tracer tests were performed by flowing potassium iodide (KI) through artificially fractured core samples. The tracer test results were then analyzed with several models to determine which best fit the measured data. A Matrix Diffusion model was found to provide the best match of the tracer experiments. The core properties, as estimated by the Matrix …
Date:
May 1, 1987
Creator:
Johns, R. A.
Object Type:
Report
System:
The UNT Digital Library
A Timescale Estimating Model for Rule-Based Systems
The purpose of this study was to explore the subject of timescale estimating for rule-based systems. A model for estimating the timescale necessary to build rule-based systems was built and then tested in a controlled environment.
Date:
December 1987
Creator:
Moseley, Charles Warren
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Hot Service Facility subsystem design description. Revision
The Hot Service Facility Subsystem, which is also referred to as the Reactor Equipment Service Facility (RESF), is located in an environmentally controlled shielded vault and provides inspection, maintenance, care, and repair of reactor service equipment and tools. The shielded vault is located in the Reactor Service Building.
Date:
July 1, 1987
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Philosophical Society of Texas, Proceedings of the Annual Meeting: 1986
Proceedings of the annual meeting of the Philosophical Society of Texas held December 5 & 6, including a list of attendees, text of addresses, changes to membership, and biographical information about members who have passed. The theme of this conference was "Texas: Past, Present, Future/1836-2036, Texas and Texans: A Historical Perspective."
Date:
1987
Creator:
Philosophical Society of Texas
Object Type:
Book
System:
The Portal to Texas History
Population Growth and Socioeconomic Development in Nigeria 1960 - 1984
This study is directed toward the relationship between population growth and socioeconomic development in Nigeria for the period 1960-1984. A controlled population growth would positively affect every segment of the economic and social environment. With hunger and starvation, disease, poverty and illiteracy plaguing large portions of the world, Nigeria's limited resources would best be utilized if shared among a smaller population, Nigeria, like other developing African countries, does not have an official population control policy. The diversity in the Nigerian culture, the controversial nature of the subject of population control, and possibly, implementation difficulties, account for the absence of a population control policy in Nigeria. This study offers in its concluding section some policy recommendations on how to tackle Nigeria's population problem.
Date:
May 1987
Creator:
Asongwe, Michael N. (Michael Nde)
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
North Texas State University Schedule of Classes: Spring 1987
Schedule of classes at North Texas State University for the Spring emester providing a list of classes that will be offered by department, with times and locations. It also includes class indexes and other information about registration procedures, exams, tuition, and related topics.
Date:
Spring 1987
Creator:
North Texas State University
Object Type:
Book
System:
The UNT Digital Library
The MEGA data acquisition system
The MEGA experiment will acquire 3 MB/sec of data into a 9-crate Fastbus system controlled by a single Fastbus master. A second-level trigger will be implemented in a Fermilab Advanced Computer Program (ACP) farm of 32 Motorola 68020 microprocessors. Output from the ACP farm at a rate of 24 KB/sec will be sent to a MicroVAX II for taping. 16 refs.
Date:
January 1, 1987
Creator:
Oothoudt, M. A.; Amann, J. F.; Bolton, R. D.; Hughes, E. B.; Jui, C. C. H.; Cooper, P. S. et al.
Object Type:
Article
System:
The UNT Digital Library
Mechanism of surface enrichment and adhesion of coal combustion particulates. Second quarterly report, September 1987
Following is an updated list of accomplishments: Design of an experimental set up and development of experimental techniques for study of the adsorption and desorption of alkali on coal ash and potential additive particles. Development of techniques for quantitative and qualitative characterization of alkali distribution in small additive particles using Scanning Auger Spectroscopy. Completion of a set of adsorption experiments for measuring the rate, capacity and adsorption characteristics of alkali adsorption on bauxite, silica, lime and kaolin. Design and set up of a micro-fluidized bed for study of the agglomeration kinetics and characteristics of ash and additive particles. Completion of the first set of experiments on dependence of agglomeration characteristics on the alkali content of typical ash and potential additive particle.
Date:
December 31, 1987
Creator:
Shadman, F.; Peterson, T. W.; Wendt, J. O. L.; Punjak, W. A. & Rizeq, G.
Object Type:
Report
System:
The UNT Digital Library
The VAXONLINE software system at Fermilab
The VAXONLINE software system, started in late 1984, is now in use at 12 experiments at Fermilab, with at least one VAX or MicroVax. Data acquisition features now provide for the collection and combination of data from one or more sources, via a list-driven Event Builder program. Supported sources include CAMAC, FASTBUS, Front-end PDP-11's, Disk, Tape, DECnet, and other processors running VAXONLINE. This paper describes the functionality provided by the VAXONLINE system, gives performance figures, and discusses the ongoing program of enhancements.
Date:
June 1, 1987
Creator:
White, V.; Heinicke, P.; Berman, E.; Constanta-Fanourakis, P.; MacKinnon, B.; Moore, C. et al.
Object Type:
Article
System:
The UNT Digital Library
A logic flowgraph based concept for decision support and management of nuclear plant operation
In the US the evolution of automated decision support tools for plant operators has spanned from ''event-oriented'' diagnostic systems to ''symptom-oriented'' computer-based emergency operating procedures. A problem common to both kind of systems is in the initial level of effort required for development of the associated models and software. In the following we will discuss some of the general issues that arise in the development and application of these decision-support systems. We will also propose and discuss an approach founded on the application of an event diagnosis and plant stabilization philosophy. This approach is based on the use of logic flowgraph process-oriented models - arranged in a modular architecture and developed with the aid of an expert-system model builder - as a possible means of achieving the development of an automated and integrated plant management system. This approach should allow the developer to achieve a high process recovery and management capability with a focused and controlled expenditure of development time and resources.
Date:
June 29, 1987
Creator:
Guarro, S. B.
Object Type:
Article
System:
The UNT Digital Library
Preliminary design of the energy system for the ZTH experiment
A 4 MA reversed field pinch experiment, called ZTH, is being designed and built at Los Alamos. The first plasma discharges are scheduled to take place in FY 1991. Major electrical power equipment components, such as a pulsed generator, controlled power supplies, isolation and opening switches, current interrupters and capacitor banks are being designed and procured for this experiment. In this paper the requirements and the design philosophy of the components for the energy system are described, and a status report on the component acquisition is given. 7 figs.
Date:
October 1, 1987
Creator:
Boenig, H.; Gribble, R.; Hammer, C.; Huddleston, S.; Kewish, R.; Konkel, H. et al.
Object Type:
Article
System:
The UNT Digital Library
Radioimmunotherapy: Development of an effective approach. Progress report, 1987
Goals of this program are to answer the fundamental scientific questions for the development of an effective approach for delivering radiation therapy to cancer on antibody-based radiopharmaceuticals. The following list consists of highlights of developments from our program: documented therapeutic response of lymphoma in patients receiving radioimmunotherapy; development and application of quantitative radionuclide imaging techniques for therapy planning and dosimetry calculations; multicompartmental modeling and analysis of the in vivo MoAb kinetics in patients; a MoAb macrocycle chelate for Cu-67: development, production, in vitro and in vivo testing; NMR analysis of immunoradiotherapeutic effects on the metabolism of lymphoma; analysis of the variable molecular characteristics of the MoAb radiopharmaceutical, and their significance; in vivo studies in mice and patients of the metabolism of radioiodinated MoAb as well as In-111 CITC MoAb; and biodistribution of Cu-67 TETA MoAb in nude mice with human lymphoma.
Date:
December 31, 1987
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Argonne National Laboratory 1986 publications
This report is a bibliography of scientific and technical 1986 publications of Argonne National Laboratory. Some are ANL contributions to outside organizations' reports published in 1986. This compilation, prepared by the Technical Information Services Technical Publications Section (TPS), lists all nonrestricted 1986 publications submitted to TPS by the Laboratory's Divisions. Author indexes list ANL authors only. If a first author is not an ANL employee, an asterisk in the bibliographic citation indicates the first ANL author. The report is divided into seven parts: Journal Articles -- Listed by first author; ANL Reports -- Listed by report number; ANL and non-ANL Unnumbered Reports -- Listed by report number; Non-ANL Numbered Reports -- Listed by report number; Books and Book Chapters -- Listed by first author; Conference Papers -- Listed by first author; and Complete Author Index.
Date:
December 1, 1987
Creator:
Kopta, J.A. & Springer, C.J.
Object Type:
Report
System:
The UNT Digital Library
Challenges of nuclear fusion
After 30 years of research and development in many countries, the magnetic confinement fusion experiments finally seem to be getting close to the original first goal: the point of ''scientific break-even.'' Plans are being made for a generation of experiments and tests with actual controlled thermonuclear fusion conditions. Therefore, engineers and material scientists are hard at work to develop the required technology. In this paper the principal elements of a generic fusion reactor are described briefly to introduce the reader to the nature of the problems at hand. The main portion of the presentation summarizes the recent advances made in this field and discusses the major issues that still need to be addressed in regard to materials and technology for fusion power. Specific examples are the problems of the first wall and other components that come into direct contact with the plasma, where both lifetime and plasma contamination are matters of concern. Equally challenging are the demands on structural materials and on the magnetic-field coils, particularly in connection with the neutron-radiation environment of fusion reactors. Finally, the role of ceramics must be considered, both for insulators and for fuel breeding purposes. It is evident that we still have a formidable …
Date:
May 1, 1987
Creator:
Kunkel, W.B.
Object Type:
Article
System:
The UNT Digital Library
Slagging retrofit pulsed coal combustor: Final report
A concept for a novel form of slagging retrofit pulsed coal combustor was tested in the laboratory. The combustor is based on controlled use of a form of high pressure amplitude combustion instability. The approach adopted was to resolve, in single pulse experiments, the basic technical issues arising in the development of the combustor. In a cold flow device, the issues of coal spatial distribution were addressed and a combustor and solids disperser configuration was developed to give uniform coal distribution in the combustor. Single pulse ignition experiments were conducted to determine the pressure rise in combustor, pressure rise-decay times, and coal conversion a function of various operating variables. Coal injection, flame propagation, and blowdown times leading to potential combustor size reduction of three times over steady flow combustors were demonstrated. The results give high pressure exhaust leading to potentially improved downstream heat transfer and reduced boiler size. Finally, zero-, one-, and two-dimensional mathematical models were developed in support of the experiments and also to provide design capability. 11 refs., 43 figs.
Date:
January 1, 1987
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Nucleation and growth of /sup 3/He-B in /sup 3/He-A
The /sup 3/He A ..-->.. B transition is remarkable for a number of reasons. Because of the small bulk free energy difference between the two phases, the probability of homogeneous thermal nucleation of the B phase is vanishingly small. Thus the experimental fact that the B phase nucleates readily from the A phase is not understood. The A ..-->.. B transition is also remarkable in that when it occurs after cooling from above the critical temperature, it occurs in an extreme state of supercooling known as hypercooling. In this situation, the velocity of propagation of the A-B phase interface is controlled by microscopic phenomena rather than by thermal diffusion. We briefly review our recent work on both these topics, including the velocity of propagation of the A-B interface through hypercooled /sup 3/He-A, a search for cosmic-ray-induced B-phase nucleation, and preliminary observations of B-phase nucleation locations and temperatures. 15 refs.
Date:
January 1, 1987
Creator:
Swift, G. W. & Buchanan, D. S.
Object Type:
Article
System:
The UNT Digital Library
Pilot plant UF/sub 6/ to UF/sub 4/ test operations report
The FMPC site includes a plant designed for the reduction of uranium hexafluoride (UF/sub 6/) to uranium tetrafluoride (UF/sub 4/). Limited operation of the upgraded reduction facility began in August 1984 and continued through January 19, 1986. A reaction vessel ruptured on that date causing the plant operation to be shut down. The DOE conducted a Class B investigation with the findings of the investigation board issued in preliminary form in May 1986 and as a final recommendation in July 1986. A two-phase restart of the plant was planned and implemented. Phase I included implementing safety system modifications, changing reaction vessel temperature control strategy, and operating the reduction plant under an 8-week controlled test. The results of the test period are the subject of this report. 41 figs., 11 tabs.
Date:
February 1, 1987
Creator:
Bicha, W. J.; Fallings, M.; Gilbert, D. D.; Koch, G. E.; Levine, P. J.; McLaughlin, D. F. et al.
Object Type:
Report
System:
The UNT Digital Library
Mechanism of surface enrichment and adhesion of coal combustion particulates
Following is an updated list of accomplishments: Design of an experimental set up and development of experimental techniques for study of the adsorption and desorption of alkali on coal ash and potential additive particles. Development of techniques for quantitative and qualitative characterization of alkali distribution in small additive particles using Scanning Auger Spectroscopy. Completion of a set of adsorption experiments for measuring the rate, capacity and adsorption characteristics of alkali adsorption on bauxite, silica, lime and kaolin. Design and set up of a micro-fluidized bed for study of the agglomeration kinetics and characteristics of ash and additive particles. Completion of the first set of experiments on dependence of agglomeration characteristics on the alkali content of typical ash and potential additive particle.
Date:
January 1, 1987
Creator:
Shadman, F.; Peterson, T.W.; Wendt, J.O.L.; Punjak, W.A. & Rizeq, G.
Object Type:
Report
System:
The UNT Digital Library
Preliminary evaluation of regulatory and safety issues for sodium-sulfur batteries in electric vehicle applications
The US Department of Energy (DOE) Electric and Hybrid Vehicle Program is involved in the development and evaluation of sodium-sulfur energy storage batteries for electric vehicle (EV) applications. Laboratory testing of complete battery systems, to be followed by controlled in-vehicle testing and on-road usage, are expected to occur as components of the DOE program during the 1988--1990 time frame. Testing and operation of sodium-sulfur batteries at other DOE contractor facilities may also take place during this time frame. A number of regulatory and safety issues can affect the technical scope, schedule, and cost of the expected programmatic activities. This document describes these issues and requirements, provides a preliminary evaluation of their significance, and lists those critical items that may result from them. The actions needed to permit the conduct of a successful program at DOE contractor facilities are identified, and concerns that could affect the eventual commercialization potential of sodium-sulfur batteries are noted to the extent they are known.
Date:
May 1, 1987
Creator:
Evans, D.R.; Henriksen, G.L. & Hunt, G.L.
Object Type:
Report
System:
The UNT Digital Library
Making transuranic assay measurements using modern controllers
This paper describes methodology and computer-controlled instrumentation developed at the Los Alamos National Laboratory that accurately performs nondestructive assays of large containers bearing transuranic wastes and nonradioactive matrix materials. These assay systems can measure fissile isotopes with 1-mg sensitivity and spontaneous neutron-emitting isotopes at a 10-mg sensitivity. The assays are performed by neutron interrogation, detection, and counting in a custom assay chamber. An International Business Machines Personal Computer (IBM-PC) is used to control the CAMAC-based instrumentation system that acquires the assay data. 6 refs., 7 figs.
Date:
January 1, 1987
Creator:
Kuckertz, T.H.; Caldwell, J.T.; Medvick, P.A.; Kunz, W.E. & Hastings, R.D.
Object Type:
Article
System:
The UNT Digital Library