Collection
Office of Scientific & Technical Information Technical Reports
202
Congressional Research Service Reports
105
Defense Base Closure and Realignment Commission
49
Texas Attorney General Opinions
48
Texas Patents
38
Technical Report Archive and Image Library
33
Government Accountability Office Reports
19
National Advisory Committee for Aeronautics Collection
17
Texas Register
10
TRAIL Microcard Collection
10
5 More
Country
States
Decade
Month
Day
Language
515 Matching Results
Results open in a new window/tab.
Results:
1 - 24 of
515
next
Study of Dispersant Agents for Thorium Oxide
A preliminary study of dispersing agents for thorium oxide has been completed and several of the dispersants have possible uses. Also many of the industrial dispersing agents tested are not usable with thorium oxide due to induced behavior causing balling and caking. The effects of nitric acid concentration have been observed to also effect each dispersing agent.
Date:
August 7, 1959
Creator:
Bate, L. C. & Leddicotte, G. W.
Object Type:
Report
System:
The UNT Digital Library
Radiators for Space Power Plants
An improved heat sink for space vehicles was proposed in ORNL-CF-59-1-21. Subsequent work on the problem has indicated that there is a substantial probability of a puncture of such a radiator by meteors. To meet this problem a modified geometry has been evolved for which the probability of a meteor puncture should be reduced by a factor of at least 100 relative to the radiator of the original proposal at the expense of an increase in radiator weight of possibly 30%. This memorandum outlines the approach to the problem and a series of similar promising solutions.
Date:
August 7, 1959
Creator:
Fraas, A. P.
Object Type:
Report
System:
The UNT Digital Library
A Feasibility Report on a Method of Direct Total Body Measurement of Enriched Uranium in Man
In certain phases uranium processing it is poss!ble for operating personnel to acquire internal deposits of uranium. This body burden can be acquired by injection, as in contamination of a wound, by ingestion, of by inhalation. In order to estimate internal exposures, some means of determining the location and extent of these internal deposits is essential.
Date:
August 7, 1959
Creator:
Sanders, Fred W.
Object Type:
Report
System:
The UNT Digital Library
Texas Agriculture, Volume 36, Number 2, August 2020
Monthly magazine issued by the Texas Farm Bureau for farmers and ranchers discussing current news and issues in agriculture.
Date:
August 7, 2020
Creator:
Texas Farm Bureau
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
Remarks on the Double Dispersion Approach to the Bethe-Salpeter Equation
The following remarks are made on the applicability of the double dispersion approach to the Beth-Salpeter equation introduced previously. 1) Any invariant solution of the Bethe-Salpeter equation in ladder approximation satisfies the double dispersion representation when the total energy-momentum is space-lake. 2) There are some exceptional invariant solutions which are not given by the previous method in the equal-mass case, but the existence of such solutions is very unlikely in the unequal-mass case. 3) In the case of the general separated kernel the previous results give the correct solutions even if the kernel does not reproduce the double dispersion representation.
Date:
August 7, 1962
Creator:
Nakanishi, Noboru
Object Type:
Report
System:
The UNT Digital Library
Out-of-Reactor Tests on Pu-Al Type PRTR Elements for 1706-KER Testing
The small amount of irradiation tenting experience on the plutonium-aluminum type elements planned for the Plutonium Recycle Test Reactor (PRTR) has made such testing of great importance. The high temperature pressurized recirculating water 1706 KER facility is one possible place for conducting investigations of the irradiation behavior of this type fuel element. To obtain the maximum information from the in-reactor testing and to detect possible problems, out-of-reactor test both at room and anticipated operating temperatures must be made. Room temperature pressure drop measurements and high temperatures performance of two prototypical fuel element designs proposed for KER testing are reported in this document.
Date:
August 7, 1959
Creator:
Doman, D. R.
Object Type:
Report
System:
The UNT Digital Library
MTA Quarterly Progress Report - March, April, May, 1952
Quarterly report on projects - special M.T.A. distribution
Date:
August 7, 1952
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Mechanical Features of a Continuous Ion Exchange Unit
This review covers: (a) The continuous countercurrent ion exchangers which have been described in the patent and/or technical literature. (b) Some of the other moving bed processes which are similar in mechanical arrangement to a continuous countercurrent ion exchange and which might have certain features adaptable to an ion exchange unit. (c) The auxiliary mechanical devices which are or may be used in an ion exchange apparatus.
Date:
August 7, 1956
Creator:
Lauer, B. E.
Object Type:
Report
System:
The UNT Digital Library
Texas Register, Volume 45, Number 32, Pages 5449-5558, August 7, 2020
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:
August 7, 2020
Creator:
Texas. Secretary of State.
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
Railroad Tie
Patent for a type of support for the rails in railroad tracks.
Date:
August 7, 1916
Creator:
Huffman, Henry W.
Object Type:
Patent
System:
The Portal to Texas History
Investigations and ore reserve estimation of Barlow Creek roscoelite deposits with ore reserve data from Graysill and Lightner Creek areas, Colorado
Discussing the investigation and ore reserve estimation of the Barlow Creek Roscoelite deposits with ore reserve data Grayskull and Lightner Creek areas, Colorado.
Date:
August 7, 1952
Creator:
Morehouse, George E. & Pursley, Richard J.
Object Type:
Report
System:
The UNT Digital Library
Texas State Library and Archives Commission Requests for Legislative Appropriations: 2020 and 2021
Report submitted by Texas State Library & Archives Commision to the Texas 86th regular legislature requesting appropriations to fund programming and activities. It includes an overview of the institution's goals, summaries of appropriations requests for fiscal years 2020 and 2021, and supporting documentation.
Date:
August 7, 2018
Creator:
Texas State Library and Archives Commission
Object Type:
Book
System:
The Portal to Texas History
Studies of the Metabolism of Certain Fission Products and Plutonium
A short survey of some of the metabolic relationships of the elements, cerium, colurbium, plutonium, strontium, yttrium, and zirconium is presented. While the results of internally deposited radium have not been investigated in these experiments, they have been extensively studies by others. Because so much is known of its biological effects, it has been included in this historical survey.
Date:
August 7, 1950
Creator:
Kawin, Bergane; Copp, D. H. & Hamilton, J. G.
Object Type:
Report
System:
The UNT Digital Library
A high intensity solar cell invention: The edge-illuminated vertical multi-junction (VNJ) solar cell
This report contains a summary of a High Intensity Solar Cell (HI Cell) development carried out under the NIST/DOE Energy-Related Invention Program. The HI Cell, or Edge-Illuminated vertical Multi-junction Solar Cell, eliminates most major problems encountered with other concentrator solar cell designs. Its high voltage and low series resistance features make it ideally suited for efficient operation at high intensities. Computer modeling shows efficiencies near 30% at 500 suns intensity are possible with state-of-art processing. Development of a working model was largely successful before encountering an unexpected problem during the last fabrication step with the anti-reflection coating. Unfortunately, funding was exhausted before its resolution. Recommendations are made to resolve the AR coating problem and to integrate all the knowledge gained during this development into a viable prototype model. The invention will provide the technical and economic performance needed to make photovoltaic systems cost-effective for wide use.
Date:
August 7, 1992
Creator:
Sater, B. L.
Object Type:
Report
System:
The UNT Digital Library
Texas Turkey Poults: For Week Ending August 2, 1980
Weekly report of the Texas Crop and Livestock Reporting Service on turkey poult numbers in Texas and compared with other states. It includes compiled statistics across six consecutive weeks, from the week ending July 5 to the week ending August 2, during 1979 and 1980 for turkey eggs set and poults hatched.
Date:
August 7, 1980
Creator:
Texas Crop and Livestock Reporting Service
Object Type:
Report
System:
The Portal to Texas History
Visualization of Large Terrains Made Easy
We present an elegant and simple to implement framework for performing out-of-core visualization and view-dependent refinement of large terrain surfaces. Contrary to the recent trend of increasingly elaborate algorithms for large-scale terrain visualization, our algorithms and data structures have been designed with the primary goal of simplicity and efficiency of implementation. Our approach to managing large terrain data also departs from more conventional strategies based on data tiling. Rather than emphasizing how to segment and efficiently bring data in and out of memory, we focus on the manner in which the data is laid out to achieve good memory coherency for data accesses made in a top-down (coarse-to-fine) refinement of the terrain. We present and compare the results of using several different data indexing schemes, and propose a simple to compute index that yields substantial improvements in locality and speed over more commonly used data layouts. Our second contribution is a new and simple, yet easy to generalize method for view-dependent refinement. Similar to several published methods in this area, we use longest edge bisection in a top-down traversal of the mesh hierarchy to produce a continuous surface with subdivision connectivity. In tandem with the refinement, we perform view frustum …
Date:
August 7, 2001
Creator:
Lindstrom, P. & Pascucci, V.
Object Type:
Article
System:
The UNT Digital Library
The Atomic Weights Commission and Isotopic Abundance Ratio Determinations.
Following Thomson's discovery of stable isotopes in non-radioactive chemical elements, the derivation of atomic weight values from mass spectrometric measurements of isotopic abundance ratios moved very slowly. Forty years later, only 3 1/2 % of the recommended values were based on mass spectrometric measurements and only 38% in the first half century. It might be noted that two chemical elements (tellurium and mercury) are still based on chemical measurements, where the atomic weight value calculated from the relative isotopic abundance measurement either agrees with the value from the chemical measurement or the atomic weight value calculated from the relative isotopic abundance measurement falls within the uncertainty of the chemical measurement of the atomic weight. Of the 19 chemical elements, whose atomic weight is based on non-corrected relative isotopic abundance measurements, five of these are two isotope systems (indium, iridium, lanthanum, lutetium and tantalum) and one is a three-isotope system (oxygen).
Date:
August 7, 2005
Creator:
Holden, N. E.
Object Type:
Article
System:
The UNT Digital Library
Wall Conditioning and Power Balance for Spheromak Plasmas in SSPX
We report here results from power balance measurements for ohmically-heated plasmas in the Sustained Spheromak Physics Experiment (SSPX). The plasma is formed inside a close-fitting tungsten-coated copper shell; wall conditioning by baking, glow discharge cleaning (GDC), Ti gettering, and helium shot conditioning produces clean plasmas (Z{sub eff} < 2.5) and reduces impurity radiation to a small fraction of the input energy, except when the molybdenum divertor plate has been overheated. We find that most of the input energy is lost by conduction to the walls (the divertor plate and the inner electrode in the coaxial source region). Recently, carborane was added during GDC to boronize the plasma-facing surfaces, but little benefit was obtained.
Date:
August 7, 2002
Creator:
Hill, D. N.; Wood, R. D.; Bulmer, R.; McLean, H. S.; Ryutov, D. D.; Stallard, B. W. et al.
Object Type:
Article
System:
The UNT Digital Library
A Memory Insensitive Technique for Large Model Simplification
In this paper we propose three simple, but significant improvements to the OoCS (Out-of-Core Simplification) algorithm of Lindstrom [20] which increase the quality of approximations and extend the applicability of the algorithm to an even larger class of compute systems. The original OoCS algorithm has memory complexity that depends on the size of the output mesh, but no dependency on the size of the input mesh. That is, it can be used to simplify meshes of arbitrarily large size, but the complexity of the output mesh is limited by the amount of memory available. Our first contribution is a version of OoCS that removes the dependency of having enough memory to hold (even) the simplified mesh. With our new algorithm, the whole process is made essentially independent of the available memory on the host computer. Our new technique uses disk instead of main memory, but it is carefully designed to avoid costly random accesses. Our two other contributions improve the quality of the approximations generated by OoCS. We propose a scheme for preserving surface boundaries which does not use connectivity information, and a scheme for constraining the position of the ''representative vertex'' of a grid cell to an optimal position …
Date:
August 7, 2001
Creator:
Lindstrom, P & Silva, C
Object Type:
Article
System:
The UNT Digital Library
Some Aspects of Non-Split Vlasov Simulation Methods
This note summarizes some of the work done on Vlasov simulation methods during the two-week visit of E. Sonnendrucker to LBNL in July-August, 2002. It describes a variety of algorithms which might be employed in solving the coupled Vlasov-Poisson system on a grid in phase space. In particular, it emphasizes a class of methods which do not employ the sort of operator splitting commonly used in Vlasov methods, whereby the distribution function information is alternately updated along planes of constant x and constant v. Instead, the distribution function information on the phase space nodes is given by either (a) multi-dimensional interpolation of the gridded f at an earlier time onto a set of phase space locations which are obtained by tracking the nodes back to that earlier time (''backward semi-Lagrangian''), or (b) weighted deposition or averaging of f values from orbits onto nodes (''forward semi-Lagrangian'' or ''fully Lagrangian'').
Date:
August 7, 2002
Creator:
Friedman, A & Sonnendrucker, E
Object Type:
Report
System:
The UNT Digital Library
Caustic Leaching of Hanford Tank T-110 Sludge
This report describes the caustic leaching test conducted on Hanford Tank T-110 sludge during FY 2002 at the Pacific Northwest National Laboratory. The data presented here can be used to develop the baseline and alternative flowsheets for pretreating Hanford tank sludge. The U.S. Department of Energy funded the work through the Efficient Separations and Processing Crosscutting Program (ESP; EM-50).
Date:
August 7, 2002
Creator:
Lumetta, Gregg J.; Darnell, Lori P.; Garza, Priscilla A.; Greenwood, Lawrence R.; Oliver, Brian M.; Rinehart, Donald E. et al.
Object Type:
Report
System:
The UNT Digital Library
Fuels Preparation Department monthly report, July 1962
This document details activities of the Fuels Preparation Department during the month of July 1962.
Date:
August 7, 1962
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
High intensity laser interactions with atomic clusters
The development of ultrashort pulse table top lasers with peak pulse powers in excess of 1 TW has permitted an access to studies of matter subject to unprecedented light intensities. Such interactions have accessed exotic regimes of multiphoton atomic and high energy-density plasma physics. Very recently, the nature of the interactions between these very high intensity laser pulses and atomic clusters of a few hundred to a few thousand atoms has come under study. Such studies have found some rather unexpected results, including the striking finding that these interactions appear to be more energetic than interactions with either single atoms or solid density plasmas. Recent experiments have shown that the explosion of such clusters upon intense irradiation can expel ions from the cluster with energies from a few keV to nearly 1 MeV. This phenomenon has recently been exploited to produce DD fusion neutrons in a gas of exploding deuterium clusters. Under this project, we have undertaken a general study of the intense femtosecond laser cluster interaction. Our goal is to understand the macroscopic and microscopic coupling between the laser and the clusters with the aim of optimizing high flux fusion neutron production from the exploding deuterium clusters or the …
Date:
August 7, 2000
Creator:
Ditmire, T
Object Type:
Report
System:
The UNT Digital Library
A high intensity solar cell invention: The edge-illuminated vertical multi-junction (VNJ) solar cell. Final report
This report contains a summary of a High Intensity Solar Cell (HI Cell) development carried out under the NIST/DOE Energy-Related Invention Program. The HI Cell, or Edge-Illuminated vertical Multi-junction Solar Cell, eliminates most major problems encountered with other concentrator solar cell designs. Its high voltage and low series resistance features make it ideally suited for efficient operation at high intensities. Computer modeling shows efficiencies near 30% at 500 suns intensity are possible with state-of-art processing. Development of a working model was largely successful before encountering an unexpected problem during the last fabrication step with the anti-reflection coating. Unfortunately, funding was exhausted before its resolution. Recommendations are made to resolve the AR coating problem and to integrate all the knowledge gained during this development into a viable prototype model. The invention will provide the technical and economic performance needed to make photovoltaic systems cost-effective for wide use.
Date:
August 7, 1992
Creator:
Sater, B. L.
Object Type:
Report
System:
The UNT Digital Library