Two experiments on applications of the transonic area rule to asymmetric configurations

Two experiments on applications of the transonic area rule to asymmetric configurations

Date: April 20, 1956
Creator: Hall, James Rudyard
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Effect on transonic and supersonic drag of fuselage gloves designed to give a smooth overall area distribution to a swept-wing--body combination

Effect on transonic and supersonic drag of fuselage gloves designed to give a smooth overall area distribution to a swept-wing--body combination

Date: November 26, 1954
Creator: Hall, James Rudyard
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Effect of wing size and amount of indentation on applicability of transonic area rule to swept-wing configurations

Effect of wing size and amount of indentation on applicability of transonic area rule to swept-wing configurations

Date: July 20, 1956
Creator: Hall, James Rudyard
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Preliminary free-flight study of the drag and stability of a series of short-span missiles at Mach numbers from 0.9 to 1.3

Preliminary free-flight study of the drag and stability of a series of short-span missiles at Mach numbers from 0.9 to 1.3

Date: February 8, 1956
Creator: Hall, James Rudyard
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Free-flight investigation of longitudinal stability and control of a rocket-propelled missile model having cruciform, triangular, inline wings and tails

Free-flight investigation of longitudinal stability and control of a rocket-propelled missile model having cruciform, triangular, inline wings and tails

Date: March 25, 1952
Creator: Hall, James R
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Drag Measurements on Equivalent Bodies of Revolution of Six Configurations of the Convair MX-1964 (Originally MX-1626) Proposed Supersonic Bomber

Drag Measurements on Equivalent Bodies of Revolution of Six Configurations of the Convair MX-1964 (Originally MX-1626) Proposed Supersonic Bomber

Date: October 29, 1953
Creator: Hall, James Rudyard
Description: Tests on equivalent bodies of revolution of six configurations of the Consolidated Vultee Aircraft Corporation proposed supersonic bomber (Convair MX-1964) have indicated that it is possible to reduce the drag of the configuration by designing it to have a favorable area distribution. The method of NACA RM L53I22c to predict the peak pressure drag of a configuration on the basis of its area distribution gave generally good agreement with the subject models.
Contributing Partner: UNT Libraries Government Documents Department
Section 106 Recordation, Interpretation, and Documentation for the Demolition of Buildings 3008, 3012, 3044, 3503, 3504, 3508, and 3592 at the Oak Ridge National Laboratory, Oak Ridge, Tennessee

Section 106 Recordation, Interpretation, and Documentation for the Demolition of Buildings 3008, 3012, 3044, 3503, 3504, 3508, and 3592 at the Oak Ridge National Laboratory, Oak Ridge, Tennessee

Date: May 1, 2009
Creator: Hall, James A
Description: No abstract prepared.
Contributing Partner: UNT Libraries Government Documents Department
Abortion: Legal Control

Abortion: Legal Control

Date: August 12, 1976
Creator: Hall, James
Description: The U.S. Supreme Court decisions in Roe v. Wade, 410 U.S. 112 (1973), and Doe v. Bolton, 410 U.S. 179, which held generally that a State could no longer prohibit abortions in the first 6 months of pregnancy, caused several House and Senate members to move for an abortion prohibition effectuated by congressional action. To this end, proposed bills and constitutional amendments have been introduced in both Houses. Rather than having settled the abortion question conclusively, the Supreme Court decisions have kindled a national protest movement.
Contributing Partner: UNT Libraries Government Documents Department
The Zero-Lift Drag of Several Configurations of the XAAM-N-2 Pilotless Aircraft. TED No. NACA DE332

The Zero-Lift Drag of Several Configurations of the XAAM-N-2 Pilotless Aircraft. TED No. NACA DE332

Date: March 16, 1950
Creator: Hall, James R. & Sandahl, Carl A.
Description: Free-flight tests have been made to determine the zero-lift drag of several configurations of the XAAM-N-2 pilotless aircraft. Base-pressure measurements were also obtained for some of the configurations. The results show that increasing the wing-thickness ratio from 4 to 6 percent increased the wing drag by about 100 percent at M = 1.3 and by about 30 percent at M = 1.8. Increasing the nose fineness ratio from 5.00 to 6.25 reduced the drag coefficient of the wingless models a maximum of about 0.030 (10 percent) at M = 2.0. A corresponding change in nose shape for the winged models decreased the drag coefficient by about 0.05 in the Mach number range from 1.1 to 1.4; at Mach numbers greater than 1.6 no measurable reduction in drag coefficient was obtained. The drag of the present Sparrow fuselage is less than that of a parabolic fuselage which could contain the same equipment.
Contributing Partner: UNT Libraries Government Documents Department
Limited heat-transfer, drag, and stability results from an investigation at Mach numbers up to 9 of a large rocket-propelled 10 degree cone

Limited heat-transfer, drag, and stability results from an investigation at Mach numbers up to 9 of a large rocket-propelled 10 degree cone

Date: July 22, 1957
Creator: Hall, James R & Speegle, Katherine C
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Free-flight investigation of the longitudinal stability and control of a rocket-propelled missile model having cruciform, triangular, interdigitated wings and tails

Free-flight investigation of the longitudinal stability and control of a rocket-propelled missile model having cruciform, triangular, interdigitated wings and tails

Date: July 10, 1951
Creator: Sandahl, Carl A & Hall, James R
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Report on measurements at Ohio University to estimate backgrounds for neutron radiography in the 10-14 MeV region

Report on measurements at Ohio University to estimate backgrounds for neutron radiography in the 10-14 MeV region

Date: May 10, 1997
Creator: Dietrich, F. S., LLNL & Hall, James, M.
Description: In evaluating the feasibility of neutron radiography and tomography in the 10-14 MeV region, it is important to estimate the radiation backgrounds that could potentially interfere with the measurements. In this context, backgrounds refer to all counts in the detector other than those due to neutrons transmitted through the sample without scattering. There are two principal sources of backgrounds: (1) neutrons and gammas resulting from incident neutrons interacting in the sample, and (2) events in the detector arising from neutrons scattering in the accelerator vault and collimation system, together with natural and induced activation. Counts due to these backgrounds are spread fairly uniformly across the detector, and therefore do not compromise the ability to identify small features in the sample on the millimeter scale in a tomographic reconstruction; however, they do increase the neutron dose required to achieve sufficient statistical accuracy to reveal features of interest. Backgrounds are generally considered to be tolerable if their count rates are less than or comparable to the rates from the transmitted (uncollided) beam. If they are significantly above this level, they are a potentially serious problem. Understanding radiation backgrounds is thus critically important in determining the required source strength and running time. The ...
Contributing Partner: UNT Libraries Government Documents Department
Drag measurements at low lift of a four-nacelle airplane configuration having a longitudinal distribution of cross-sectional area conducive to low transonic drag rise

Drag measurements at low lift of a four-nacelle airplane configuration having a longitudinal distribution of cross-sectional area conducive to low transonic drag rise

Date: November 18, 1953
Creator: Hopko, Russell N; Piland, Robert O & Hall, James R
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Rotating Aperture System

Rotating Aperture System

Date: January 18, 2005
Creator: Rusnak, Brian; Hall, James M.; Shen, Stewart & Wood, Richard L.
Description: A rotating aperture system includes a low-pressure vacuum pumping stage with apertures for passage of a deuterium beam. A stator assembly includes holes for passage of the beam. The rotor assembly includes a shaft connected to a deuterium gas cell or a crossflow venturi that has a single aperture on each side that together align with holes every rotation. The rotating apertures are synchronized with the firing of the deuterium beam such that the beam fires through a clear aperture and passes into the Xe gas beam stop. Portions of the rotor are lapped into the stator to improve the sealing surfaces, to prevent rapid escape of the deuterium gas from the gas cell.
Contributing Partner: UNT Libraries Government Documents Department
Blood-Based Biomarkers: A blood screening test for Alzheimer's disease

Blood-Based Biomarkers: A blood screening test for Alzheimer's disease

Date: June 25, 2016
Creator: O'Bryant, Sid E.; Edwards, Melissa; Johnson, Leigh A.; Hall, James R.; Villarreal, Alcibiades E.; Britton, Gabrielle B. et al.
Description: This article describes the first-ever multiethnic referent sample that spans community-based and clinic-based populations for implementation of an Alzheimer's disease blood screen.
Contributing Partner: UNT College of Arts and Sciences
The impact of GPX1 on the association of groundwater selenium and depression: a project FRONTIER study

The impact of GPX1 on the association of groundwater selenium and depression: a project FRONTIER study

Date: January 4, 2013
Creator: Johnson, Leigh A.; Phillips, Jack A.; Mauer, Cortney; Edwards, Melissa; Balldin, Valerie Hobson; Hall, James R. et al.
Description: Article on the impact of GPX1 on the association of groundwater selenium and depression.
Contributing Partner: UNT College of Arts and Sciences
Preliminary Conceptual Design of Commercial Geopressured Geothermal Electricity Generation Plants

Preliminary Conceptual Design of Commercial Geopressured Geothermal Electricity Generation Plants

Date: January 1, 1976
Creator: Underhill, Gary K.; Carlson, Ronald A.; Clendinning, William A.; Erdos, Jozsef, Erdos; Gault, John; Hall, James W. et al.
Description: The geopressured geothermal resource is an unproven, poorly characterized resource. For this reason, detailed designs of utilization facilities are neither desired nor justifiable at this time. However, an overall preliminary design study, the purpose of which is to establish a baseline for technical, net energetic, and economic assessment, is justified. Clearly, if overwhelming technical, net energetic, or economic problems can be identified during the basic planning phase for a project, then plans for eliminating or mitigating those problems must be incorporated into the basic project plan or the project should be terminated. Definition of a model resource based upon existing resource assessment data was essential in order to reduce the quantity of parametric studies to an absolute minimum. Once the model resource was characterized, then the potential conversion system alternatives were reduced to those which were sufficiently technologically mature and which were suited for the model resource. Two such conversion systems were considered appropriate -- the flash steam and secondary working fluid cycles. Preliminary conceptual design studies of these electric generation plants were preformed by two subcontractors. Brown and Root, Inc. studied the secondary working fluid plant, and Dow Chemical USA, Texas Division, studied the flash steam plant.
Contributing Partner: UNT Libraries Government Documents Department
Preliminary conceptual design of commercial geopressured geothermal fuel plants

Preliminary conceptual design of commercial geopressured geothermal fuel plants

Date: January 1, 1976
Creator: Underhill, Gary K.; Carlson, Ronald A.; Clendinning, William A.; Erdos, Jozsef, Erdos; Gault, John; Hall, James W. et al.
Description: Previous feasibility studies Bechtel (1975), TRW (1975) for electric power generation utilizing geothermal resources have tended to focus primarily on the power plant and have neglected the fuel production and effluent disposal facilities. The Dow Chemical USA study (1974) for the Governor's Energy Advisory Council, State of Texas, placed equal emphasis on the power plant and the fuel plant. The study reported in Chapter II and in what follows in this chapter, also places equal emphasis on the two types of facilities. It is important that the fuel plant, the well field, the fuel processing plant, and the effluent disposal facility be the subject of a preliminary conceptual design and costing activity so that economic and net energetics analysis can be performed. The activity also serves to assess technological maturity of the fuel plant and to identify technical problems requiring further study. The resource considered was the model resource outlined in Sectio B, Chapter II. Fuel plants were outlined for three power generation plants: single-stage flash steam, two-stage flash steam, and propane secondary working fluid plant.
Contributing Partner: UNT Libraries Government Documents Department
Net Energetics Analysis

Net Energetics Analysis

Date: January 1, 1976
Creator: Underhill, Gary K.; Carlson, Ronald A.; Clendinning, William A.; Erdos, Jozsef; Gault, John; Hall, James W. et al.
Description: Econimic analysis, next to technical analysis, has traditionally constituted the major decision-making tool of the capitalist economic system. As lon as capitalism survives, this will remain to be the case. However, during the current period of increasing scarcity and cost of energy -- a period accompanied by higher than normal inflation rates -- a proposed project may appear attractive and economic when, in fact, its demands on energy resources are extraordinarily high. Such a conclusion could well be the case when the major energy expenditure in construction or operation is directed toward a fuel, the price of which is held unusually low by legal regulation. Net energetics analysis, as applied to energy generation facilities, is a method for determining the total amount of energy, IE, required to construct, operate, and maintain the energy generation facility compared to the total energy, TE, generated (or converted) throughout the facility's lifetime. Fuel consumed by the facility as direct input to the conversion or utiliztion process is not considered a debit while energy generated is not considered a credit in the calculation of the construction, operation, and maintenance energy account, IE. Energy required to run equipment auxiliary to the conversion process is, on the ...
Contributing Partner: UNT Libraries Government Documents Department
Overview

Overview

Date: January 1, 1976
Creator: Underhill, Gary K; Carlson, Ronald A.; Clendinning, William A.; Erdos, Jozsef; Gault, John; Hall, James W. et al.
Description: Development of the geothermal resource, like the development of any other resource, depends upon the responses to a number of key issues. Those key issues, in capsule form, are: Resource extent and producibility; Maturity of the associated technology of production and utilization; Economics and energetics of production and utilization; Environmental acceptability; and The marketplace and potential market penetration. Discussion of these key issues is important at all stages of a development project, but especially during the early stages when recommendations for commitment of considerable technical, economic, and non-renewable resources are being proposed.
Contributing Partner: UNT Libraries Government Documents Department
Industrial utilization of geopressured geothermal energy

Industrial utilization of geopressured geothermal energy

Date: January 1, 1976
Creator: Underhill, Gary K.; Carlson, Ronald A.; Clendinning, William A.; Erdos, Jozsef; Gault, John; Hall, James W. et al.
Description: Discussion of the industrial utilization of geopressured geothermal energy is currently limited by the limited knowledge of the resource's distribution. However, the resource assessment activity in the Bureau of Economic Geology, The University of Texas at Austin, has identified a number of fairway or potential resource zones. These zones are located in Kenedy County; in and about Corpus Christi and Nueces Bays in Nueces, San Patricio, and Aransas Counties; in the coastal zones of Matagorda County; and in a crescent-shaped zone parallel to the coastline in Brazoria and Galveston Counties. The Kenedy and Matagorda County zones are situated in rural areas with little or no industrial activity. The Corpus Christi and Brazoria-Galveston zones are in and adjacent to highly industrialized and urbanized districts. The rural zones will require the establishment of new industries for geothermal fluid utilization while the industrial-urban zones will require either new industry, expansion to existing industry, or modification to existing plant and process. Proposed industries for geothermal fluid utilization can be considered with respect to fitting the industry to the available fluids; this has been the usual approach. An alternate approach is to fit the abailable fluids to the proposed industry. In order to follow the ...
Contributing Partner: UNT Libraries Government Documents Department
Dow Chemical USA Report - Appendix B

Dow Chemical USA Report - Appendix B

Date: January 1, 1976
Creator: Underhill, Gary K.; Carlson, Ronald A.; Clendinning, William A.; Erdos, Jozsef; Gault, John; Hall, James W. et al.
Description: The geopressured zone, assuming the presence of natural gas and high water productivity, may be used to produce economical electric power only if the water is at least 375 F or a means of conversion more efficient than flashing is found. The design and costing of a double-flash 25-megawatt plant using water at 325 F gave a capital cost of $678/kwh, a fuel cost of 63?/M Btu and a unit power cost of 46 mills/kwh. The conversion efficiency of the plant, including hydraulic turbine energy from the well head overpressure, was 10.3%. This low efficiency accounts for the high unit power cost. A one-well, 1.5-megawatt test facility will require a total capital cost of $6,661,000. Expansion of this site to a four-well, 10-megawatt pilot plant will require an additional capital expenditure of $27,843,000. The total capital cost for an independent 10-megawatt pilot plant was estimated at $31,777,000. It should be noted that the economics calculated in this report is based on industrial power plant experience. Maintenance, operating costs, and rate of return for industrial investment, as used in the calculations, do not reflect utility plant practices. The cost of power producing may compare more favorably with that of utility plants. ...
Contributing Partner: UNT Libraries Government Documents Department
Economic Analysis

Economic Analysis

Date: January 1, 1976
Creator: Underhill, Gary K.; Carlson, Ronald A.; Clendinning, William A.; Erdos, Jozsef; Gault, John; Hall, James W. et al.
Description: The purpose of this chapter is to present an economic evaluation of electric power production from geopressured geothermal resources in Texas. An effort has been made to obtain the most realistic data concerning the investment and production costs of a geothermal power generation system, sited on a model geopressured geothermal resource.
Contributing Partner: UNT Libraries Government Documents Department
Brown and Root, Inc. report, Appendix A

Brown and Root, Inc. report, Appendix A

Date: January 1, 1976
Creator: Underhill, Gary K.; Carlson, Ronald A.; Clendinning, William A.; Erdos, Jozsef; Gault, John; Hall, James W. et al.
Description: Bown & Root will define the requirements for commercial electric-power generation, using U.S. Gulf Coast geopressured geothermal fluids as fuel. These commercialization requirements shall then be translated into the data and technology requirements which are either available or which a pilot plant and laboratory (test bed) facility will need to provide. From these considerations will evolve a recommendation with respect to the necessity for a pilot plant and laboratory facility and, if necessity is established, a preliminary conceputal design for the facilities.
Contributing Partner: UNT Libraries Government Documents Department
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