Collection
Office of Scientific & Technical Information Technical Reports
271
Congressional Research Service Reports
101
Texas Patents
54
Texas Attorney General Opinions
42
Technical Report Archive and Image Library
39
Government Accountability Office Reports
29
TRAIL Microcard Collection
19
Texas State Publications
19
National Advisory Committee for Aeronautics Collection
18
Defense Base Closure and Realignment Commission
11
4 More
Degree Department
Country
States
Decade
Month
Day
Language
577 Matching Results
Results open in a new window/tab.
Results:
1 - 24 of
577
next
Core I Control Rod Drive Mechanisms Periodic Tests. Section I. Ninth Performance. Test Results DL-S-148-I, T-550011
The purpose of the test was to determine the operating conditions of the rod drive mechanisms so that operating personnel may be informed concerning malfunctioning mechanisms. The results the this test favorably agree with previous results. The operating characteristics of the rod drive mechanisms checked in this test have not changed appreciably.
Date:
November 18, 1959
Creator:
Pazuchanics, Nicholas
Object Type:
Report
System:
The UNT Digital Library
Control Air Conditions at the Reactor Chamber. Section I. Test Results DL-S-269
The purpose of the test was to determine the ability of the Control Air System to provide the necessary quantity and quality of clean, dry air to keep the rod drive mechanism stator and position indicator housings at about 3 PSIG in order to avoid low stator resistances resulting from condensation during plant cooldown. The Control Air System is capable of providing the quality of air specified in AEC letter SBO:JWF:100 dated November 17, 1958 of less than 44 grains of moisture per lb. of air in the control air line nearest the reactor chamber.
Date:
November 18, 1959
Creator:
Eckenrode, Gerald E.
Object Type:
Report
System:
The UNT Digital Library
Station Radiation Level Survey. Section II. Fifth Performance. Core I, Seed 1. Test Results DL-S-157
The purpose of the test was to determine the level of the radiation field in the Turbine Plant during a significant power run. The initial power level survey had an average radiation level of 0.02 mr/hr. this survey showed and average radiation level of 0.03, which was considered background level. this radiation level was far below the maximum allowable level of 2 mr/hyr. No Neutrons were detected.
Date:
November 18, 1959
Creator:
McTish, James M.
Object Type:
Report
System:
The UNT Digital Library
Measurements of Coefficients of Reactivity. Section I. Seventh Performance. 3032-EFPH. Core I, Seed 1. Test Results DL-S-151 (T-550132)
The purpose of the test was to determine the temperature and pressure coefficients of reactivity at zero power. Data was obtained during this test which indicates a new temperature coefficient and a pressure coefficient corrected to station operating conditions of 500 F and 1785 PSIG.
Date:
November 18, 1959
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Texas Register, Volume 47, Number 46, Pages 7607-7814, November 18, 2022
A weekly publication, the Texas Register serves as the journal of state agency rulemaking for Texas. Information published in the Texas Register includes proposed, adopted, withdrawn and emergency rule actions, notices of state agency review of agency rules, governor's appointments, attorney general opinions, and miscellaneous documents such as requests for proposals. After adoption, these rulemaking actions are codified into the Texas Administrative Code.
Date:
November 18, 2022
Creator:
Texas. Secretary of State.
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
Credit Union Department Newsletter, Number 11-20, November 2020
Monthly newsletter of the Texas Credit Union Department containing departmental news and announcements, deadlines, and other information of importance to credit unions. Information provided covers CDFI guarantee bond program, FFIEC announces cyber security assessments, and policies and procedures
Date:
November 18, 2020
Creator:
Texas. Credit Union Department.
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
NPR; Tube to Nozzle Connection and Zircaloy-2 to Stainless Steel Tube Connection
Zircaloy-2 tubing was successfully joined to austenetic and ferritic stainless steel tubing by fusion bonding. Tungsten inert gas welding was employed to join a flange to a pressure tube. This work was performed to help determine the design of pressure tubes of a pressure tube reactor.
Date:
November 18, 1958
Creator:
Smith, W. R. & Klepfer, H. H.
Object Type:
Report
System:
The UNT Digital Library
Electronuclear Research Division Semiannual Progress Report
Nuclear physics research with 22-Mev protons in the 86-in. cyclotron included angular-distribution measurements of neutrons from (p,n) reactions in nine target elements; measurement of the angular distribution of fission fragments from proton-induced fission of U233, U225, U228, Th230, and Th232; measurement of alpha-particle angular distributions from (p,α) reactions a study of the neutron-deficient isotopes of terbium and completion of an extensive program of the measurement of activation cross sections. Two more targets for cyclotron production of isotopes were developed, and the production yields for 14 radioisotopes are summarized. A new record for continuous beam power on a production target, 36 kw for 5 hr, was achieved. The design of a beam-deflector system for the 86-in. cyclotron has been completed, and several of the components have been fabricated ; a shutdown for installation is scheduled for October 8. The deflected N+++ beam of the 63-in. cyclotron was used in a study of the gain and loss of electrons by nitrogen lens passing through thin foils, and the equilibrium charge distribution of lens as a function of energy was thus obtained. The excitation functions were measured for nitrogen-induced reactions on both nitrogen and oxygen. Assembly restrictions of the prepared 114-in. heavy-particle cyclotron …
Date:
November 18, 1954
Creator:
Livingston, R. S. & Howard, F. T.
Object Type:
Report
System:
The UNT Digital Library
Technical Investigation of Autoclave Failure
On July 31, 1959, an autoclave ruptured while being used for thermal cycling studies of Plutonium Recycle Test Reactor (PRTR) plutonium-aluminum fuel elements. Since stand-in materials were being used in this test, no contamination was involved. This accident could lead to inference of greater hazards associated with PRTR fuel designs than had previously been postulated. An ad hoc technical investigation committee was appointed by the Manager Reactor and Fuels Research and Development, to study the autoclave failure. The committee was charged with developing a sound technical explanation of the accident and/or recommending experimental programs to test hypotheses of the physical and chemical processes leading to the rupture of the autoclave.
Date:
November 18, 1959
Creator:
Wittenbrock, N. G.; Freshley, M. D.; Griggs, B. & Wheeler, R. G.
Object Type:
Report
System:
The UNT Digital Library
Pipet Filler
A number of pipetting aids are commercially available which obviate the necessity of filling pipets by oral suction. Most of the commercially available devices involve fitting the pipet into a soft tight fitting bushing and filling by means of either a piston or a rubber bulb. The pipet is then emptied by means of a valve control which permits, it is claimed, a dispensing accuracy of 0.1mL. It is at once apparent that the probable error (10% for a 1 mL. pipet) is considerably greater than is permissible for great precision. In practice these devices are found to be awkward and after a period of use tend to become even more so due to corrosion of the valve and aging of the rubber bushing and rubber bulbs.
Date:
November 18, 1952
Creator:
Finston, H. L. & Strickland, Gerald
Object Type:
Report
System:
The UNT Digital Library
High-Speed Saw Tests Power Reactor Fuels Reprocessing Development
The basic scheme for processing power reactor fuels at Hanford includes the removal of inert endfittings ("hardware") from the active sections of the fuels. Within Hanford Laboratories, research and development studies have been in progress on various types of saws which might be used for hardware cutoff. In the initial phase of the program, high-speed saws were investigated; more recently, studies on low speed saws have been conducted. This report summarizes the high speed saw studies and includes information on abrasive wheels, diamond wheels and metal "friction" blades which cut by actually melting metal ahead of the saw blade. At the completion of the low speed saw testing program currently in progress, basic saw types will be compared and the saw type to be included in the reprocessing complex will be selected.
Date:
November 18, 1959
Creator:
Kelly, V. P.
Object Type:
Report
System:
The UNT Digital Library
The Radiolysis and Pyrolysis of Several Polyaromatic Compounds
The radiolysis of several polyaromatic compounds which might be used as coolant material in a reactor was investigated using both gamma and reactor radiation. The compounds selected were naphthalene, anthracene, naphthacene, pyrene, phenanthrene, 1, 2 benzanthracene, chrysene, triphenylene, 9, 10 dihydrophenanthrene, phenazine, 7, 8, benzoquinoline and m-phenanthroline, in addition to the uncondensed ring compounds, biphenyl, ortho, meta and para terphenyl and bibenzyl. Gas yields, percentage decomposition, percentage "high boiler" and number average molecular weights were determined. A correlation was found between radiation stability and electron affinity and singlet triplet excitation energies. The most stable compounds were the condensed ring compounds, naphthalene, pyrene, chrysene, phenanthrene and triphenylene.
Date:
November 18, 1963
Creator:
Weiss, J.; Collins, C. H. & Sucher, J.
Object Type:
Report
System:
The UNT Digital Library
Perturbation Techniques for the Deflecting Mode
The descriptive parameters of a waveguide with smooth or periodic structure are most easily measured in a waveguide section of suitable length which is transformed into a resonant cavity by placing short circuits at both ends. Measurements of dispersion diagram, phase velocity, group velocity, voltage attenuation coefficient, shunt impedance, field configuration, etc. all involve some form of perturbation technique. The introduction of a perturbing object in a resonant cavity changes the stored electric energy We and magnetic energy Wm by Δwe and ΔWm' resulting in a frequency shift Δf of the resonant frequency f, which is given by the perturbation formula of J. Muller.
Date:
November 18, 1963
Creator:
Hahn, H. & Halama, H. J.
Object Type:
Report
System:
The UNT Digital Library
Automatic Bubble Density Measurement with the Hough-Powell System
The Brookhaven Bubble Chamber Group is developing a Hough-Powell fast analysis system (HPD)1 for bubble chamber photographs. High precision measurements are made with a computer controlled flying spot digitizer. We are currently testing the track selection programs for the system. We have just completed a study of a method for automatic bubble density measurements.
Date:
November 18, 1963
Creator:
Strand, R. C. & Webre, N.W.
Object Type:
Report
System:
The UNT Digital Library
The "N" on "P" Silicon Solar Cell Gamma Ray Dose Rate Meter
The recently developed "n" on "p" type silicon solar cell has been evaluated for application as a high-level gamma radiation dose rate meter. The solar cell ionization current was found to be a linear function of dose rate in a range 10 2 to 10 7 rads per hour. A degradation rate of approximately one per cent per megarad was measured after stabilization with twenty megarads of cobalt-60 gamma radiation. The system has proven to be stable over long periods of time. Temperature dependence corrections have been found to be .0 per cent per degree centigrade between 0 and 60 degree centigrade.
Date:
November 18, 1963
Creator:
Mueller, A. C.; Rizzo, P. X. & Galanter, L.
Object Type:
Report
System:
The UNT Digital Library
UCRL Lectures on Numerical Analysis and Applied Mathematics: Lecture IX
The field of mathematics which deals with the construction of charts representing mathematical laws is known as Nomography. Often it is necessary to repeatedly solve mathematical formulae, but with different values for the symbols involved. The manipulation of the formulae, or repeated constructions of graphs, may require considerable work, as well as carry with it the possibility of errors invalidating the results. In such a situation, the construction of a single chart which would serve for all the solutions would obviously be of considerable value.
Date:
November 18, 1952
Creator:
Robbins, Edward S.
Object Type:
Report
System:
The UNT Digital Library
Transient Reactor Aerothermodynamics
The transient aerothermodynamic processes in a gas-cooled reactor are described in a simplified manner to illustrate some of the fundamental physical phenomena involved, to provide some approximate but useful methods of analysis, and to aid in the understanding and use of more complex computer solutions. The transient heat balance equation for an element of a single reactor channel is derived in terms of aerothermodynamic time constants, and typical analytic solutions for transients are presented. This equation is used in generating the time-dependent equation for the channel exhaust gas temperature. The single-channel analysis is extended to multiple channels. A method for determining the approximate transient temperature envelopes for various reactor components is presented. The effects of aerodynamic and thermal coupling between different reactor channels are illustrated. Some of the simplifying assumptions are investigated with respect to the conditions under which they are valid.
Date:
November 18, 1963
Creator:
Rodean, Howard C.
Object Type:
Report
System:
The UNT Digital Library
Physical and Mechanical Properties of Some Aluminum-Lithium Alloys
The results of this study are tabulated in Summary Tables A and B below. For the most part, these values were read from smoothed curves drawn thru the plotted experimental data. The values for aluminum (i.e., 0 w/o Li) were taken from the 1948 Edition of the ASM Metals Handbook. The room temperature properties are reported for lithium contents of 0, 3.5, 7 and 10 weight per cent. In the case of the high temperature properties, there were insufficient data to allow extrapolation and interpolation to pre-chosen compositions: these properties are therefore reported only for the compositions of the actual samples.
Date:
November 18, 1952
Creator:
Chiswik, H. H.; Lehrer, W. M. & Rideout, S. P.
Object Type:
Report
System:
The UNT Digital Library
Bridle Attachment
Patent for a new and improved way to connect the blind brace of a bridle.
Date:
November 18, 1919
Creator:
Steele, Tom L.
Object Type:
Patent
System:
The Portal to Texas History
Burner.
Patent for an inexpensive and efficient burner for oil "with a maximum production of heat." (lines 14-15) including illustrations.
Date:
November 18, 1919
Creator:
Upton, Arthur L. & Immer, Samuel N.
Object Type:
Patent
System:
The Portal to Texas History
Cotton Bur Breaker and Suction Fan.
Patent for "a new and useful Improvements in Cotton-Bur Breakers and Suction-Fans" (lines 6-8) and is designed for loading and unloading cotton from a wagon while separating the cotton lint from the hulls, including illustrations.
Date:
November 18, 1919
Creator:
Irwin, Samuel D.
Object Type:
Patent
System:
The Portal to Texas History
Lid and Label Holder.
Patent for an improvement to lid and label holders (boxes) that allows for the lid to be held against the side of the box so that the box sits at an inclination and displays the contents of the box.
Date:
November 18, 1919
Creator:
Watts, Albert B.
Object Type:
Patent
System:
The Portal to Texas History
Hose-Supporter.
Patent for improvements in Hose-Supporters or garter that "grips the entire sock, around the leg, prevents the possibility of sagging, insures a perfect fit on the leg of the wearer and serves to equalize the stress on the sock" (lines 11-14) which adds durability and "avoids straining the sock out of shape" (lines 16-17). Includes illustration.
Date:
November 18, 1919
Creator:
Tonahill, William J., Jr.
Object Type:
Patent
System:
The Portal to Texas History
Motor-Actuated Locking Device for Automobiles
Patent for a device that prevents the drive shaft of an automobile from when moving when pushed by an unauthorized person. The device acts as a form of security to ensure unauthorized individuals are unable to move the vehicle. Additionally, the device can be used while the vehicle is in motion in order to slow the drive shaft, and thus the vehicle.
Date:
November 18, 1919
Creator:
Wherry, Robert D.
Object Type:
Patent
System:
The Portal to Texas History