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Congressional Veto Legislation: 97th Congress (open access)

Congressional Veto Legislation: 97th Congress

This report has two purposes: first, to describe briefly the main features of each kind of congressional veto procedure, and second, to list under appropriated categories all such provisions submitted in the current Congress that have been located.
Date: November 24, 1982
Creator: Cavanagh, M. Suzanne; Garcia, Rogelio & Norton, Clark F.
System: The UNT Digital Library
Fastbus backplane impedance (open access)

Fastbus backplane impedance

None
Date: November 24, 1982
Creator: Haldeman, M.
System: The UNT Digital Library
Human Rights and U.S. Foreign Policy (open access)

Human Rights and U.S. Foreign Policy

Following a review of such broad policy issues, this report treats specific human rights issues of current interest. Discussions of controversy over the selection of an Assistant Secretary of State for Human Rights and Humanitarian Affairs and of human rights policy at the international financial institutions are followed by reviews of U.S. human rights policy toward Argentina, El Salvador, Nicaragua, South Africa, and the Soviet Union.
Date: November 24, 1982
Creator: Bite, Vita
System: The UNT Digital Library
General formalism for the study of activation: application to radiochemical detectors (open access)

General formalism for the study of activation: application to radiochemical detectors

This paper develops mathematical techniques required for the study of neutron-induced activation of importance to fission and fusion devices - reactors, nuclear weapons, etc. The formalism is presented as a guide for examining the dependence of activation products on flux time history, spatial gradients and the sensitivity to the assumed reactions and cross sections. Exact solutions in powers of the neutron fluence are presented and examined in various limits. As an example, radiochemical threshold (n,2n) detectors used to diagnose thermonuclear explosions are studied using approximations to these solutions. In particular, approximate formulas for the sensitivity of the radiochemical products to different cross sections are derived.
Date: September 24, 1982
Creator: Poppe, C.H.
System: The UNT Digital Library
TeVatron I Small-Aperture Quad lamination analysis (open access)

TeVatron I Small-Aperture Quad lamination analysis

Stacking, compression, and welding of the laminations for the TeV I Small Aperture Quad results in a deformation due to springback which is unacceptable due to magnetic field requirements. ANSYS has been used to analyze a solution to this problem.
Date: September 24, 1982
Creator: Leininger, M.
System: The UNT Digital Library
TMX-Upgrade (TMX-U) operation in the sloshing-ion mode (open access)

TMX-Upgrade (TMX-U) operation in the sloshing-ion mode

This report summarizes initial results from TMX-U carried out from June through August 1982. In these successful experiments we operated TMX-U in the sloshing-ion mode. We generated sloshing ions, measured improved energy confinement, and observed improved microstability compared to TMX. The experiments operated about as we expected and we are pleased with the results. During this period many additional achievements were also recorded. The magnetically confined sloshing ions constitute one of the two ingredients needed to build a thermal barrier. The second ingredient consists of magnetically confined electrons, which will be studied in the next series of TMX-U experiments using microwave heating of the electrons. Later, the hot ions and electrons will be combined to form thermal barriers.
Date: September 24, 1982
Creator: Simonen, T. C.; Allen, S. L. & Casper, T. A.
System: The UNT Digital Library
Finite-element stress and deflection analysis of CDF yoke and end plug (open access)

Finite-element stress and deflection analysis of CDF yoke and end plug

A large detector is being designed to study anti pp collisions at center-of-mass energies of up to 2000 GeV as part of the Fermilab Collider Detector Facility (CDF). The central detector of this facility consists of a solenoid, calorimeter yoke, and a variety of particle measurement devices. The yoke will be a large steel structure that will provide the magnetic flux return path as well as support structure for calorimetry and other instrumentation. It must resist both electromagnetic and gravitational loads while exhibiting only small elastic deformations. The instrumented endplugs of the yoke are subjected to large electromagnetic loads. Moreover, due to the presence of wire chambers within these plugs, they must also be particularly stiff. The purpose of this paper is to present the results of a finite element stress and deflection analysis of these structures under various anticipated load conditions. The PATRAN-G finite element modeling program, installed on a CDF-VAX 11/780 and operating from a Ramtek 6212 colorgraphics terminal, was used to generate the analysis models. The actual finite element analysis was performed by the ANSYS general purpose finite element program, installed on the Fermilab Cyber 175's.
Date: May 24, 1982
Creator: Wands, R.; Grimson, J.; Kephart, R. & Theriot, D.
System: The UNT Digital Library
Mathematical models and illustrative results for the RINGBEARER II monopole/dipole beam-propagation code (open access)

Mathematical models and illustrative results for the RINGBEARER II monopole/dipole beam-propagation code

RINGBEARER II is a linearized monopole/dipole particle simulation code for studying intense relativistic electron beam propagation in gas. In this report the mathematical models utilized for beam particle dynamics and pinch field computation are delineated. Difficulties encountered in code operations and some remedies are discussed. Sample output is presented detailing the diagnostics and the methods of display and analysis utilized.
Date: May 24, 1982
Creator: Chambers, F.W.; Masamitsu, J.A. & Lee, E.P.
System: The UNT Digital Library
Graph-theoretic algorithm for hierarchial decomposition of dynamic systems (open access)

Graph-theoretic algorithm for hierarchial decomposition of dynamic systems

A graph-theoretic scheme is proposed for partitioning of dynamic systems into hierarchially ordered subsystems having independent inputs and outputs. The resulting subsystems are input-output reachable as well as structurally controllable and observable, so that a piece-by-piece design of estimators and controllers can be accomplished for systems with large dimensions without excessive computer requirements.
Date: March 24, 1982
Creator: Pichai, V.; Sezer, M.E. & Siljak, D.D.
System: The UNT Digital Library