Navy DDG-51 Destroyer Procurement Rate: Issues and Options for Congress (open access)

Navy DDG-51 Destroyer Procurement Rate: Issues and Options for Congress

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Date: April 25, 1994
Creator: O'Rourke, Ronald
System: The UNT Digital Library
CaWingz user`s guide (open access)

CaWingz user`s guide

This document assumes that you have read and understood the Wingz user`s manuals. CaWingz is an external Wingz program which, when combined with a set of script files, provides easy-to-use EPICS channel access interface functions for Wingz users. The external function run allows Wingz user to invoke any Unix processor within caWingz. Few additional functions for accessing static database field and monitoring of value change event is available for EPICS users after release 3.11. The functions, script files, and usage are briefly described in this document. The script files supplied here serve as examples only. Users are responsible for generating their own spreadsheet and script files. CaWingz communicates with IOC through channel access function calls.
Date: April 25, 1994
Creator: Cha, Ben-chin
System: The UNT Digital Library
Diosmacycloalkanes as models for the formation of hydrocarbons from surface methylenes. Final report (open access)

Diosmacycloalkanes as models for the formation of hydrocarbons from surface methylenes. Final report

Assignment of the vibrational modes Of Os{sub 2}(CO){sub 8}(CHCH{sub 3}) and Os(CO){sub 4}(C{sub 2}H{sub 4)} has given fingerprint vibrational spectra for the following species when chemisorbed on metal catalyst surfaces: ethylidene and ethylene bound in a metallacyclopropane mode. The formation and fragmentation of diosmacyclobutanes have been shown to involve slippage of the outgoing olefin onto a single osmium, and associative exchange of the olefin from that site. The incorporation of vinylcyclopropane without rearrangement has confirmed the absence of a diradical intermediate. The anomalous stability of the diosmacyclobutane derived from trans-2-butene has proven due to greater destabilization (by the substituent methyls) of the slipped intermediate than of the ground state. Reaction of an osmacyclobutane with 1,3- or 1,2-dienes (allenes) gives 1,2 rather than 1,4 addition to the diosmium unit. Treatment of Os(CO){sub 4}(C{sub 2}H{sub 4}) with triflic acid results in the formation of Os(CO){sub 4}(C{sub 2}H{sub 5})OTf. The authors have found that the reaction of an aryl iodine(III) reagent with propargyl stannanes or silanes results in o-iodo propargyl arenes.
Date: April 25, 1994
Creator: Norton, J. R.
System: The UNT Digital Library
Study of the effect of the space charge using SYNCH (open access)

Study of the effect of the space charge using SYNCH

The interparticle repulsion, or space charge, limits the density of charged-particle beams that can be obtained in storage rings. In this report the authors study the effect of increasing the space charge, with an exact computation of the lattice parameters using SYNCH. Systematically increasing the ion density by decreasing the emittance with cooling techniques lowers the betatron tune, until the lower half-integral stopband resonance -- also induced by the beam -- is reached. In the simple model described in the report, the amount of ``cooling`` is limited by the encountered stopband of the lattice. Therefore, machines with a higher tune and larger periodicity are better suited to store beams with high space charge.
Date: April 25, 1994
Creator: Haffmans, A. F.; Maletic, D. & Ruggiero, A. G.
System: The UNT Digital Library
Characterization of oil and gas waste disposal practices and assessment of treatment costs. Technical progress report, January 1, 1994--March 31, 1994 (open access)

Characterization of oil and gas waste disposal practices and assessment of treatment costs. Technical progress report, January 1, 1994--March 31, 1994

This report covers work completed during the sixth quarter for the project. The project consists of three tasks: the first relates to developing a database of waste volumes and disposal methods used by the industry; the second and third tasks are aimed at investigating technologies that could be used for the treatment of produced waters and developing cost estimates for those technologies. The remainder of this report describes progress related to the three tasks in the project. Overall, construction of the Production Environmental Database (PED) is ongoing. While much of the data has been collected and entered into the database, a few data categories are still missing, for example, soils and geology and geohydrology. Work is currently under way to collect these data. In addition, a detailed data analysis has begun in order to develop relationships between oil and gas activities and environmental characteristics. In terms of the treatment of produced water, much of the work in the past quarter was focused on analyzing the costs associated with the treatment and disposal of waste residuals such as sludges.
Date: April 25, 1994
Creator: Bedient, P. B.
System: The UNT Digital Library
Integrated Computer-Enhanced Remote Viewing System. Quarterly report No. 6, January 1994--March 1994 (open access)

Integrated Computer-Enhanced Remote Viewing System. Quarterly report No. 6, January 1994--March 1994

The Interactive, Computer-Enhanced, Remote Viewing System (ICERVS) is a system designed to provide a reliable geometric description of a robotic task space in a fashion that enables robotic remediation to be carried out more efficiently and economically that with present systems. The key elements are a faithful way to store empirical data and a friendly user interface that provides an operator with timely access to all that is known about a scene. ICERVS will help an operator to analyze a scene and generate additional geometric data for automating significant portions of the remediation activity. Features that enable this include the following: Storage and display of empirical sensor data; Ability to update segments of the geometric description of the task space; Side-by-side comparisons of a live TV scene and a computer generated view of the same scene; Ability to create and display computer models of perceived objects in the task space, together with textural comments; and Easy export of data to robotic world models for robot guidance.
Date: April 25, 1994
Creator: unknown
System: The UNT Digital Library
Additional critical experiments for computer code validation base (open access)

Additional critical experiments for computer code validation base

This paper describes the validation, in accordance with ANSI/ANS-8.1-1983(R1988), of KENO V.a using the 27-group ENDF/B-IV cross section library for some neutronic systems containing highly-enriched uranium, carbon, and hydrogen. This constituent combination is present in many packaging applications for the safe transportation of fissile and fissionable materials. The validation has been performed for two separate computational platforms: an IBM 3090 mainframe and an HP 9000 Series 700 workstation, both using the Oak Ridge Y-12 Plant Nuclear Criticality Safety Software (NCSS) code package. Critical experiments performed at the Oak Ridge Critical Experiments Facility in support of the Rover reactor program were identified as having the constitutents desired for this validation as well as sufficient experimental detail to allow accurate construction of KENO V.a calculational models. Calculated values of k{sub eff} for the Rover experiments, which contain uranium, carbon, and hydrogen, are between 1.0012 {+-} 0.0026 and 1.0245 {+-} 0.0023. These experiments can now be added to KENO V.a and other computer code critical experiment data bases which are used for validation and to establish upper limits on calculated values of k{sub eff} for specific applications.
Date: April 25, 1994
Creator: Elliott, E. P.; Tollefson, D. A. & Vornehm, R. G.
System: The UNT Digital Library