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A Study of Location Times for Positions Arranged on a Panel in a Random and an Ordered Manner
The results of an experimental pilot study on the location time, for a sequence of N specified positions on a panel, are given for 1 <_ N <_ 30. The positions to be located were randomly arranged on one set of panels and arranged according to an ordering scheme on a second set of panels. Th location time for N positions randomly arranged on a panel varies approximately as N(2). In the case of an order arrangement the location time is essentially proportional to N. Even for as few as 30 positions, the location time for an random arrangement was twelve times greater than for an order panel. For 60 positions the ratio would be 19, and for 90 positions the ratio would be 26.
Date:
May 25, 1955
Creator:
Beeler, J. R.
Object Type:
Report
System:
The UNT Digital Library
Brief Review of Heat Transfer Problems Encountered in the Production of Magnetic Fields
The design of internally cooled electrical coils for the production of high frequency intensity magnetic fields presents many new aspects and combinations of the familiar modes of heat transfer. However, the customary methodology appears to be sufficient for preliminary analysis and understanding of those problems. This methodology comprises the derivation of a qualitative, approximate equation expressing the relative performance of the various parts of a system, followed by an examination of this equation in order to locate the limiting features of the system. These features are then investigated by more powerful methods, which in turn provide guidance for development research in the laboratory.
Date:
May 25, 1959
Creator:
Alexander, L. G.
Object Type:
Report
System:
The UNT Digital Library
Design Criteria for a Pile Oscillator
In the use of a reactor as a device to measure neutron cross sections, the pile oscillator is often employed because of its much higher sensitivity compared to that available in static reactivity measurements. The factor limiting the available in static reactivity measurements. The factor limiting the available sensitivity is the generation of random noise, which originates in the statistical nature of the chain reaction. In other words, the nuclear reactions which maintain the chain reaction do not proceed uniformly, but rather at rates which fluctuate in time around some average values. These fluctuations limit the accuracy of measurements in the reactor.
Date:
May 25, 1959
Creator:
Dresner, Lawrence
Object Type:
Report
System:
The UNT Digital Library
A Combined Distillation-Electrochemical Method for Recovery of Hydrofluoric Acid
Electrodialysis in an ion-exchange membrane cell was shown to be technically feasible for the concentration of an azeotropic mixture of HF and water. A flowsheet is presented for recovery of anhydrous HF by distillation and electrodialysis of the azeotropic residue. In the electrodialysis step, 2.6 kwhr of energy per pound of anhydrous product was consumed, with electricity at 1¢ per kilowatt-hour, the total operating cost of the electrodialysis equipment alone, including amortization, would be 6¢ per pound of HF.
Date:
May 25, 1956
Creator:
Marinsky, J. A. & Giuffrida, A. J.
Object Type:
Report
System:
The UNT Digital Library
Measurement of the Nuclear Materials Content of Non-Production Fuels
In considering the problems associated with the measurement of SSNM content of Non-Production Fuels, two distinct problems are apparent. The first is the technical problem of obtaining highly accurate measurements in a complicated chemical and physical system. The second is the administrative problem of choosing a measurement system which provides a basic of financial settlement acceptable to both the seller (reactor operator) and the buyer (Commission).
Date:
May 25, 1959
Creator:
Schneider, R. A.
Object Type:
Report
System:
The UNT Digital Library
Artificial Cooling of the Columbia River By Dam Regulation Part 1
In early July, 1958, it appeared that Columbia River temperature at HAPO would be near 24.5ºC by the end of August. River temperature were averaging 4º to 5º above 1957 figures and were 3º to 4º above the ten year highs. It seemed desirable to examine the problem to determine if any corrective measure could be taken, since it was apparent that production losses were imminent.
Date:
May 25, 1959
Creator:
Kramer, H. A.
Object Type:
Report
System:
The UNT Digital Library
Hastelloy F Dissolver Installation in 321 Building
Hastelloy F is a prime contender as a material of construction for plant dissolvers in the power fuel reprocessing program. Consequently, the fabrication and installation of dissolver was undertaken to delineate any unknown problems associated with the use of Hastelloy F; and, at the same time, to provide a vessel for development studies on the Niflex or the Sulfex processes. The purpose of this report is to describe the actual basis for design as well as to present the problems encountered during the fabrication of the vessels.
Date:
May 25, 1959
Creator:
Cooley, C. R.
Object Type:
Report
System:
The UNT Digital Library
Radial Thermal Flux Traverses in Natural Uranium - Graphite Lattices
The spatial distribution of thermal neutrons in a reactor lattices cell is of fundamental importance for many reasons. First of all, this information allows the determination of the relative absorption rates in each component of the cell which in turn enables a determination of the thermal utilization, and the diffusion length of the lattice. In addition, the observed spatial distributions of thermal neutrons in the lattice cell is of major interest in testing various approximations to the solution of the transport equation such as the P1 and P3 solutions.
Date:
May 25, 1959
Creator:
Nilson, R. & Oakes, T. J.
Object Type:
Report
System:
The UNT Digital Library
Thermal Expansion of Pile Graphites
Average coefficients of thermal expansion of the temperature range 25 C to approximately 425 C are reported for numerous types of graphite. The dependence of thermal expansion on crystal orientation and crystallite size and the effects of oxidation and cold test hole irradiation are discussed. An empirical relationship between thermal expansion and the initial rate of physical expansion under cold test hole irradiation is formulated.
Date:
May 25, 1956
Creator:
Riley, W. C. & Woodruff, E. M.
Object Type:
Report
System:
The UNT Digital Library
Refractive Indices of the Systems Uranium Hexafluoride-Bromine Trifluoride and Uranium Hexafluoride-Bromine Pentafluoride
A spectrometer has been used with a hollow prism electrically heated to 70 C to measure the refractive indices of solutions of uranium hexafluoride in bromine trifluoride and uranium hexafluoride in bromine pentafluoride. The refractive indices of the two binary systems have been expressed as a function of composition.
Date:
May 25, 1953
Creator:
Stein, Lawrence & Vogel, Richard C.
Object Type:
Report
System:
The UNT Digital Library
The Polarographic Determination of Uranium in the Presence of Plutonium
Strubl's polarographic method for the determination of uranium in the presence of iron can be used for the determination of uranium in plutonium solutions. A hydroxylamine hydrochloride solution (2M) is used as the supporting electrolyte. This reduces the plutonium to the plus three oxidation state without reducing the uranium. The uranium may then be determined polarographically by measuring the height of the uranyl reduction wave (UVI to UV) at -0.35 volts (vs. S.C.E.) applied potential. Solutions with a U/Pu weight ratio as low as 3.5 x 10(-3) were analyzed with an error of less than 2%. This error increased to 6% for solutions of 1 x 10(-3) U/Pu ration and is considerably larger for smaller U/Pu ratios.
Date:
May 25, 1951
Creator:
Smith, Maynard E. (Maynard Elliott)
Object Type:
Report
System:
The UNT Digital Library
Some Properties of Vanadium Group Beryllides
Vanadium group beryllides were prepared and studied by x - ray powder diffraction and crystallographic methods. Properties included phase studies, sintering studies, vapor pressure measurements, and thermal diffusivity measurements,
Date:
May 25, 1960
Creator:
Krikorian, Oscar Harold
Object Type:
Report
System:
The UNT Digital Library
Truck.
Patent for an improvement in trucks adapted for railroad use including handling baggage and freight and allowing the supporting wheels to be arranged with respect to the body of the truck so they can be moved longitudinally.
Date:
May 25, 1920
Creator:
Hall, James T.
Object Type:
Patent
System:
The Portal to Texas History
Liquid-Measuring Device
Patent for a device that determines the amount of liquid (particularly gasoline and oil) that flows from its glass container with the end of facilitating the exchange of goods, including illustrations.
Date:
May 25, 1920
Creator:
Meredith, John Dewitt
Object Type:
Patent
System:
The Portal to Texas History
Process of Vaporizing Liquids and Apparatus Used in Connection Therewith.
Patent for improvements in vaporizing liquids referring to a processing a liquid such as gasoline or kerosene and properly mixing it with air.
Date:
May 25, 1920
Creator:
McClinktock, Charles David
Object Type:
Patent
System:
The Portal to Texas History
Mud-Cleaning Mechanism for Tractor-Wheels.
Patent for mud cleaning mechanism for tractor wheels. The mechanism's objective is to automatically clean from and between the cleats and the ground, and along the rims of tractor wheels while the wheels are in motion. Additional advantages noted are that this mechanism is easily assembled and disassembled, durable and compact, and applicable with multiple styes of tractors.
Date:
May 25, 1920
Creator:
Williams, Hartwell L.
Object Type:
Patent
System:
The Portal to Texas History
Emergency-Tire.
Patent for improvements in emergency tires to provide "an improved emergency tire adapted to be quickly and easily applied to the auto rim in the emergency arising by reason of the regular tire being incapacitated by a "blow-out" or other cause." (lines 12-16)
Date:
May 25, 1920
Creator:
Shannon, Harris Moore
Object Type:
Patent
System:
The Portal to Texas History
Silo-Door.
Patent for a door for silos that is inexpensive and "comprises part of a ladder includes in a chute held in a position upon the silo by the door." (lines 16-18)
Date:
May 25, 1920
Creator:
Atkins, Thomas, B.
Object Type:
Patent
System:
The Portal to Texas History
Shoe-Sewing-Machine Attachment.
Patent for sole channel cutting for shoe sole sewing machines in which "the sole will be channeled for the insetting of the stiches, the channel being continuous and the cutting thereof is had when the show is at a standstill." (lines 15-20)
Date:
May 25, 1920
Creator:
Malmberg, Anders G.
Object Type:
Patent
System:
The Portal to Texas History
Rudder-Bar for Aeroplanes.
Patent for improvement in aeroplanes, especially to the steering mechanism which allows for the rudder to be locked in position so the aviator can remove their feet from the steering bar.
Date:
May 25, 1920
Creator:
McMullen, William H.
Object Type:
Patent
System:
The Portal to Texas History
Rotary Drilling-Machine
Patent for rotary well drilling platform improvements. The improvements are to control how the turntable moves without having to change the structure of the platform or having a second person watching while drilling.
Date:
May 25, 1920
Creator:
Black, Lee Jackson
Object Type:
Patent
System:
The Portal to Texas History
Overalls.
Patent for a type of overalls where the jumper is elevated from the seat. The jumper is elevated from the jumper to prevent rain and other substances from saturating the seat. The jumper can also be removed from the seat by unfastening a concealed button hole band.
Date:
May 25, 1920
Creator:
Godchaux, Herbert
Object Type:
Patent
System:
The Portal to Texas History
86th Texas Legislature, Regular Session, House Bill 403, Chapter 214
Bill introduced by the Texas House of Representatives relating to training requirements for a member of the board of trustees and the superintendent of an independent school district regarding sexual abuse, human trafficking, and other maltreatment of children.
Date:
May 25, 2019
Creator:
Texas. Legislature. House of Representatives.
Object Type:
Legislative Document
System:
The Portal to Texas History
86th Texas Legislature, Regular Session, Senate Bill 1438, Chapter 236
Bill introduced by the Texas Senate relating to prohibitions on the disposition of property interests by navigation districts for certain purposes.
Date:
May 25, 2019
Creator:
Texas. Legislature. Senate.
Object Type:
Legislative Document
System:
The Portal to Texas History