Technical Report Archive & Image Library (TRAIL) - 3,580 Matching Results

Search Results

prev Results: 521 - 544 next
open access

Contaminant effects study : final report, January 5 to September 15, 1962

Description: From abstract: "This report describes work done on ARF Project C 216 from January 5, 1962 to September 15, 1962. The objectives of the program include evolution of an analytical research program to evaluate effects of environment contributed contamination on precise devices"
Date: November 14, 1962
Creator: Lieberman, A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Contaminant Effects Study : Phase Report, January 5 to September 15, 1962

Description: From abstract: "This report describes and evaluates the variables affecting contamination of precise devices...In the present report these variables are discussed in more detail and the basis for their inclusion in the listing are given. The relative importance of the several parameters will be discussed in another report."
Date: October 9, 1962
Creator: Lieberman, A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Contraction Losses and High Temperature Pressure Drop Determinations for Tube Bundles

Description: In some engineering applications it has become necessary to operate equipment containing small diameter rods or tubes oriented parallel to flow stream. In the case of several nuclear reactors such as the Plutonium Recycle Test Reactor and the S. S. Savannah Maritime Reactor, bundles of small diameter rods are used as the fuel elements. The situation also has application to heat exchangers. A method for accurately predicting the pressure drop characteristics of various bundle configurations woul… more
Date: January 25, 1960
Creator: Gartin, W. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Contribution of Neutral Pions to Photon-Proton Scattering

Description: "The correction to photon-photon scattering processes due to the existence of the particles other than electrons is reported. The correction is of the same order in the electric charge as the lowest order term in the perturbation expansion in quantum electrodynamics, although the relevant corrections to the electron-photon and electron-electron scattering are all of higher order."
Date: March 16, 1961
Creator: Han, M.Y. & Hatsukade, S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Contributions to the Data on Theoretical Metallurgy: [Part] 13. High-Temperature Heat-Content, Heat-Capacity, and Entropy Data for the Elements and Inorganic Compounds

Description: From Introduction: "This publication as its title indicates, contains high-temperature heat-content, heat-capacity, and entropy data for the elements and inorganic compounds. The available experimental and calculated values were compiled and intercompared, and a selection of "best" values was made. The heat-content data are given in tabular form for use by those who make thermodynamic computations by means of tables, and in algebraic form for use by those who prefer equations."
Date: 1960
Creator: Kelley, K. K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Contributions to the Data on Theoretical Metallurgy: [Part] 14. Entropies of the Elements and Inorganic Compounds

Description: From Introduction: "The present bulletin covers data available through September 1959 and is a further elaboration and revision, made desirable by the fact that nearly 1,300 entropy values for inorganic substances at 298.15 degrees K. now are known as compared with 800 in the 1950 publication, which covered data available through October 1948. The present bulletin contains the currently pertinent explanatory matter that appeared in its predecessors."
Date: 1961
Creator: Kelley, K. K. & King, E. G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Contributions to the Data on Theoretical Metallurgy: [Part] 15. A Reprint of Bulletins 383, 384, 393, and 406

Description: Report issued by the Bureau of Mines containing a compilation of four previously printed Bulletins discussing thermodynamics and inorganic substances. The four reprints included are bulletins 383, 384, 393, and 406, and are each printed in full. This report includes tables.
Date: 1962
Creator: Kelley, K. K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Control and Dynamics Performance of a Sodium Cooled Reactor Power System

Description: Introduction: Objectives and Method of Approach. High plant efficiencies can be realized without excessively high core temperatures and high coolant pressures by the use of liquid metal coolant. In an attempt to prove the feasibility of liquid sodium as a reactor coolant ALCO Products, Inc., under sponsorship of the Atomic Energy Commission, is undertaking a design study of three vital system components: the intermediate exchanger, the boiler, and the superheater. Since, in the past programs,… more
Date: 1960
Creator: Alco Products (Firm).
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Control Blade Worth by Partial Water Height and Soluble Boron Methods

Description: The series of experiments described in this paper was performed to determine reactivity values of various patterns of fully inserted cruciform control blades. The experiments yielded the worth of fully inserted blade patterns in terms of their holddown characteristics.
Date: July 1960
Creator: MacKinney, Arland L. & Ball, Russell M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Control Concepts for Nuclear Ramjet Reactors

Description: Tory 11-A, the first experimental reactor in the Pluto nuclear ramjet program, will be tested in late 1960 at the Nevada Test Site of the Atomic Energy Commission. The fundamental objective of Tory II-A is to demonstrate that a high power density, high-temperature, air-cooled reactor can be successfully designed, constructed, and operated. This application places requirements on the reactor control system which are considerably more stringent than those found in previous reactor systems, both f… more
Date: June 11, 1960
Creator: Finnigan, Robert E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Control of Fires in Inactive Coal Formations in the United States

Description: From Introduction: "The purpose of this Bulletin, in addition to presenting a history and description of Bureau activities in controlling these fires, is to provide the mining industry and the public with information concerning methods of controlling fires in inactive coal formation. The Bulletin is intended to serve as a guide to the public and more specifically to mining supervisory personnel and engineers who may be called upon to extinguish such fires."
Date: 1960
Creator: Griffith, F. E.; Magnuson, M. O. & Toothman, G. J. R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Control of the Dissolved Gases in the Moderator of the HWCTR

Description: The Heavy Water Components Test Reactor (HWCTR) is used to test prototype fuel elements for power reactors that are moderated with heavy water and fueled with natural or slightly enriched uranium. During the initial critical experiments in the HWCTR, it was observed that there were unexpected variations in nuclear reactivity. Investigations revealed that this effect was due to bubble of helium gas appearing and disappearing in the moderator. An examination of the expected operating conditions… more
Date: September 20, 1963
Creator: Arnett, L. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Control of Xenon Spatial Oscillations

Description: An automatic delayed reactivity feedback based on exit coolant temperature is shown to lead to an increase in linear stability against xenon oscillations when the delay time is within a few percent of the free period of oscillation. Numerical calculations show that the stabilizing effect extends into the nonlinear range as well. It is shown that dead band control is spatially destabilizing if the dead band width is too small. A width of ± 5% is, however, found sufficient to avoid this form of i… more
Date: 1962
Creator: Lellouche, Gerald S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Control Worth of B4C Rods

Description: This report considers the theoretical evaluation of a system for gaining increased control strength and increased control lifetime and presents a theoretical model which is applicable to conventional multigroup diffusion theory.
Date: August 30, 1961
Creator: Pomraning, G. C. (Gerald C.)
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

A Controlled-Environment Steam Corrosion Facility

Description: Abstract; Technical report describing a low-flow autoclave system developed for out-of-pile corrosion testing of materials in controlled environment steam up to 500 C. The system has been set up in triplicate to provide for the exposure of various zirconium alloys to steam at 300, 400, and 500 C. The oxygen and hydrogen of the steam were controlled at 25 ppm and 3 ppm, respectively, to simulate the gas conditions from radiolytic water decomposition found in a boiling water reactor. The autocla… more
Date: October 1963
Creator: Nelson, W. B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Convergence of the Quasi-chemical Method for the Ising Square Lattice

Description: The Ising model, a system of atoms arranged on a lattice with simple nearest neighbor interactions, provides a more or less realistic description of many physical systems. The state of each atom is specified by a two-valued variable, which may be identified with: (1) its spin (up or down), if one wishes to describe a magnetic system; (2) its identity (A or B), if one wishes to describe a a mixture of two kinds of atoms; or (3) its presence or absence (atom or hole), if one is dealing with a lat… more
Date: January 1960
Creator: Brush, Stephen G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Conversion of Saline Water: A Bibliography of Literature Resulting From the Activities Sponsored by the Office of Saline Water

Description: Bibliography compiled by the Office of Saline Water containing literature that is relevant to water conversion. As stated in the preface, "the bibliography which is arranged by author, is divided into two parts" (p. iii).
Date: October 1963
Creator: Kase, Karel A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Coolball, a Machine Code for Thermal Analysis of Pebble Bed Reactor Cores

Description: COOLBALL is an IBM 650 machine program designed to calculate local gas and ball temperatures, gas flow, and pressure loses as induced by non-uniform power generation and voidage within an axial flow Pebble Bed Reactor core. This code has been used extensively to study the thermal characteristics of Pebble Bed Reactor cores in support of a broad program for the development of the PBR concept.
Date: 1961?
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Copper: A Materials Survey

Description: Report issued by the U.S. Bureau of Mines discussing surveys conducted on copper. Physicality, mineral properties, history, geology, production methods, and uses of copper are presented. This report includes maps, tables, illustrations, and photographs.
Date: 1965
Creator: McMahon, A. D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Copper Leaching Practices in the Western United States

Description: Report issued by the U.S. Bureau of Mines discussing copper leaching in the Western United States. As stated in the introduction, "the purpose of this report is to describe and discuss the different leaching and recovery methods currently employed in the production of copper from low-grade ores in the Western states" (p. 1). This report includes tables, illustrations, and photographs.
Date: 1968
Creator: Sheffer, Herman W. & Evans, LaMar G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
Back to Top of Screen