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85
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Balanced Dairying: Economics, Volume 19, Number 2, July 1999
Newsletter of the Texas Agricultural Extension Service discussing topics related to economic aspects of raising dairy cows, dairy production, and managing dairy operations.
Date:
July 19, 1999
Creator:
Texas Agricultural Extension Service
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
Utex Ore Stockpiled at Monticello
A program of bench scale leaching and ion exchange testing for the recovery of uranium from liquors produced by leaching Utex ore (Monticello Stockpile 28) was conducted at Monticello, Utah from July 1953 to April 1954.
Date:
July 19, 1954
Creator:
Moulton, Harry D.
Object Type:
Report
System:
The UNT Digital Library
On Charge Conjugation
It is shown that under very simple and general assumptions the existence of an antiunitary reflection transformation and the charge gauge group implies the existence of an antiparticle corresponding to a given charged particle. Similar consequences follow on replacing the charge gauge group by the baryon gauge group. No assumptions as to specific wave equations, or indeed the existence of local fields, are made.
Date:
July 19, 1961
Creator:
Case, Kenneth M.
Object Type:
Report
System:
The UNT Digital Library
Box Bull and Calf Wheel Gudgeon.
Patent for protection and strengthening of box bull and calf wheel gudgeons. The purpose is to prevent various troubles with well drilling (oil, etc.).
Date:
July 19, 1921
Creator:
Taylor, James Thomas
Object Type:
Patent
System:
The Portal to Texas History
Collar Fastener and Supporter
Patent for an object that provides the collar support and is hidden.
Date:
July 19, 1921
Creator:
Hudson, George J.
Object Type:
Patent
System:
The Portal to Texas History
Drier.
Patent for a drier, specifically to dry saturated grounded food items. This device is best used for flour from corn to dry before processing it to a powder form, but can also be used for other types of cereal.
Date:
July 19, 1921
Creator:
Garza, Pablo Gonzalez
Object Type:
Patent
System:
The Portal to Texas History
Electric-Current Relay
Patent for Electric-Current Relay to allow capability of use with either a direct or alternating current. This is adapted for economical use in constant temperature apparatus. Further, this technology avoids the possibility of "sticking of relay movable contacts".
Date:
July 19, 1921
Creator:
Lorenz, Charles O.
Object Type:
Patent
System:
The Portal to Texas History
Wrench.
Patent for a wrench with a head having a pair of rigid jaws to engage the object. One unique use of this wrench is that it can tighten any threaded joint beyond the degree of tightness that can be obtained by pulling the handle of an ordinary wrench in the usual manner.
Date:
July 19, 1921
Creator:
Duda, Oswald
Object Type:
Patent
System:
The Portal to Texas History
Portable Locomotive-Valve-Seating Machine.
Patent for improvements to valve-seating machines that allows for them to be constructed simply.
Date:
July 19, 1921
Creator:
Mooney, James J. & Bennet, Richard E.
Object Type:
Patent
System:
The Portal to Texas History
International Geophysical Year Oceanographic Program of the Argentine Republic
The report is about the geophysical year oceanographic program of the Argentine Republic.
Date:
July 19, 1967
Creator:
Capurro, Luis R. A.
Object Type:
Report
System:
The UNT Digital Library
Charting a Course for Texas Future Toward a More Equitable System of Taxation
Report attempting to "answer the basic questions concerning how state government can equitably fund the services which the people of Texas demand" (p. xxi).
Date:
July 19, 1991
Creator:
Texas. Governor's Task Force on Revenue.
Object Type:
Report
System:
The Portal to Texas History
Texas Register, Volume 44, Number 29, Pages 3595-3704, July 19, 2019
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:
July 19, 2019
Creator:
Texas. Secretary of State.
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
Direct doubler-main ring anti p p collisions
An anti p beam is produced from source protons accelerated in the main ring and focused on a target. The anti p beam is captured and accelerated in the doubler, its bunch structure intact, and a proton beam is accelerated in the main ring. The luminosity resulting from the ensuing anti pp collisions is calculated.
Date:
July 19, 1976
Creator:
Month, M.
Object Type:
Report
System:
The UNT Digital Library
DT fusion neutron irradiation of LLL vanadium tensile specimens, BPNL wire-foil packet, LLL Nb/sub 3/Sn tape, LLL carbon resistor, LLL glass samples, and LLL thermoelectric temperature sensors
The above specimens were irradiated with 14-MeV neutrons from the LLL Rotating Target Neutron Source. Only the test procedure is described. (MOW)
Date:
July 19, 1976
Creator:
MacLean, S. C.
Object Type:
Report
System:
The UNT Digital Library
Texas Preventable Disease News, Volume 46, Number 29, July 19, 1986
Newsletter of the Texas Bureau of Disease Control and Epidemiology discussing the news, activities, and events of the organization and other information related to health in Texas.
Date:
July 19, 1986
Creator:
Texas. Bureau of Disease Control and Epidemiology.
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
Long Period Variables in the LMC: Results from MACHO and 2Mass
We use the eight year light curve database from the MACHO (MAssive Compact Halo Objects) project together with infrared colors and magnitudes from 2MASS (the Two Micron All Sky Survey) to identify a sample of 22,000 long period variables in the Large Magellanic Cloud (referred to hereafter as LMC LPVs). A period luminosity diagram of these stars reveals six well defined sequences, in substantial agreement with previous analyses of samples from OGLE (Optical Gravitational Lensing Experiment). In our analysis we identify analogues to galactic LPVs in the LMC LPV sample. We find that carbon dominated AGB stars populate only two of the sequences, one of which includes the Mira variables. The high luminosity end of the same two sequences are also the location of the only stars with J K{sub s} > 2, indicating that they are enshrouded in dust. The unknown mechanism that produces the variability of the last sequence--those stars with long secondary periods--produces different morphology in the period luminosity diagram than what is seen in the first four sequences, which are thought to be caused by pulsation. In particular, the last sequence extends to lower luminosity RGB stars and the luminosity function does not peak among the …
Date:
July 19, 2004
Creator:
Fraser, O J; Cook, K H; Keller, S C & Hawley, S L
Object Type:
Article
System:
The UNT Digital Library
FY05-FY06 Advanced Simulation and Computing Implementation Plan, Volume 2
The Stockpile Stewardship Program (SSP) is a single, highly integrated technical program for maintaining the safety and reliability of the U.S. nuclear stockpile. The SSP uses past nuclear test data along with future non-nuclear test data, computational modeling and simulation, and experimental facilities to advance understanding of nuclear weapons. It includes stockpile surveillance, experimental research, development and engineering programs, and an appropriately scaled production capability to support stockpile requirements. This integrated national program will require the continued use of current facilities and programs along with new experimental facilities and computational enhancements to support these programs. The Advanced Simulation and Computing program (ASC) is a cornerstone of the SSP, providing simulation capabilities and computational resources to support the annual stockpile assessment and certification, to study advanced nuclear weapon design and manufacturing processes, to analyze accident scenarios and weapons aging, and to provide the tools to enable stockpile life extension programs and the resolution of significant finding investigations (SFIs). This requires a balanced system of technical staff, hardware, simulation software, and computer science solutions.
Date:
July 19, 2004
Creator:
Baron, A. L.
Object Type:
Report
System:
The UNT Digital Library
Self Organization of Wireless Sensor Networks Using Ultra-Wideband Radios
Ultra-wideband (UWB) technology has proven to be useful in short range, high data rate, robust, and low power communications. These features can make UWB systems ideal candidates for reliable data communications between nodes of a wireless sensor network (WSN). However, the low powered UWB pulses can be significantly degraded by channel noise, inter-node interference, and intentional jamming. In this paper we present a novel interference suppression technique for UWB based WSNs that promises self-organization in terms of power conservation, scalability, and channel estimation for the entire distributed network.
Date:
July 19, 2004
Creator:
Nekoogar, F.; Dowla, F. & Spiridon, A.
Object Type:
Article
System:
The UNT Digital Library
Simulating Urban Effects within a Diagnostic Wind Field Model
The atmospheric dispersion of hazardous materials within the urban environment is a topic of great current interest. Urban structures have been shown/are known to cause overall slowing of the winds, channeling through street canyons, heat island phenomena, wake vortices and enhanced turbulence. Simulations that explicitly resolve individual buildings are limited by computational requirements to domains of a few kilometers. For models that simulate regions covering tens of kilometers with resolutions on the order of a kilometer, the effects of individual buildings must be parameterized by incorporating area-averaged canopy effects. For emergency response applications, results must be provided significantly faster than real time. ADAPT (Sugiyama and Chin, 1998) is a diagnostic model used by the Department of Energy's National Atmospheric Release Advisory Capability (NARAC) at Lawrence Livermore National Laboratory. It produces non-divergent wind, turbulence, and other meteorological fields required by the NARAC dispersion model LODI (Nasstrom et al., 2000). We have incorporated an urban parameterization into ADAPT for simulations with resolutions on the order of a kilometer. We have concentrated upon parameterizing what we believe are the most significant impacts of the urban canopy--the reduction of the mean velocity and the increased turbulence. The parameterization we have implemented is a modification …
Date:
July 19, 2001
Creator:
Leone, J. M. Jr; Sugiyama, G. & Bowen, B.
Object Type:
Article
System:
The UNT Digital Library
Intelligent Collection Environment for an Interpretation System
An Intelligent Collection Environment for a data interpretation system is described. The environment accepts two inputs: A data model and a number between 0.0 and 1.0. The data model is as simple as a single word or as complex as a multi-level/multidimensional model. The number between 0.0 and 1.0 is a control knob to indicate the user's desire to allow loose matching of the data (things are ambiguous and unknown) versus strict matching of the data (things are precise and known). The environment produces a set of possible interpretations, a set of requirements to further strengthen or to differentiate a particular subset of the possible interpretation from the others, a set of inconsistencies, and a logic map that graphically shows the lines of reasoning used to derive the above output. The environment is comprised of a knowledge editor, model explorer, expertise server, and the World Wide Web. The Knowledge Editor is used by a subject matter expert to define Linguistic Types, Term Sets, detailed explanations, and dynamically created URI's, and to create rule bases using a straight forward hyper matrix representation. The Model Explorer allows rapid construction and browsing of multi-level models. A multi-level model is a model whose elements …
Date:
July 19, 2001
Creator:
Maurer, W J
Object Type:
Article
System:
The UNT Digital Library
Dynamic ionization of water under extreme conditions
Raman spectroscopy has been used to study fluid water at approximately 1000 K and 2 to 60 GPa in a laser heated diamond anvil cell. First principles molecular dynamics (MD) simulations have also been employed to simulate water under similar conditions. The experimental Raman intensity of the O-H stretch mode was observed to decrease with pressure, and beyond 50 GPa this mode was no longer visible. At approximately the same pressure we inferred a change in the slope of the melting curve. Consistent with these experimental observations, the MD simulations show that water under these conditions forms a dynamically ionized liquid state, which is dominated by very short lived (<10 fs) H{sub 2}O, H{sub 3}O{sup +} and O{sup 2-} species.
Date:
July 19, 2004
Creator:
Goncharov, A F; Goldman, N; Fried, L E; Crowhurst, J C; Kuo, I W; Mundy, C J et al.
Object Type:
Article
System:
The UNT Digital Library
Overview of the Flammability of Gases Generated in Hanford Waste Tanks
This report presents an overview of what is known about the flammability of the gases generated and retained in Hanford waste tanks in terms of the gas composition, flammability and detonability limits of the gas constituents, and availability of ignition sources. The intrinsic flammability (or non-flammability) of waste gas mixtures is one major determinant of whether a flammable region develops in the tank headspace; other factors are the rate, surface area, and volume of the release and the tank ventilation rate, which are not covered in this report.
Date:
July 19, 2000
Creator:
Mahoney, Lenna A.; Huckaby, James L.; Bryan, Samuel A. & Johnson, Gerald D.
Object Type:
Report
System:
The UNT Digital Library
Simulation of Semiconductor Nanostructures
The field of research into the optical properties of silicon nanostructures has seen enormous growth over the last decade. The discovery that silicon nanoparticles exhibit visible photoluminescence (PL) has led to new insights into the mechanisms responsible for such phenomena. The importance of understanding and controlling the PL properties of any silicon based material is of paramount interest to the optoelectronics industry where silicon nanoclusters could be embedded into existing silicon based circuitry. In this talk, we present a combination of quantum Monte Carlo and density functional approaches to the calculation of the electronic, structural, and optical properties of silicon nanostructures.
Date:
July 19, 2001
Creator:
Williamson, A J; Grossman, J C; Puzder, A; Benedict, L X & Galli, G
Object Type:
Article
System:
The UNT Digital Library
Validation of an Urban Parameterization in a Mesoscale Model
The Atmospheric Science Division at Lawrence Livermore National Laboratory uses the Naval Research Laboratory's Couple Ocean-Atmosphere Mesoscale Prediction System (COAMPS) for both operations and research. COAMPS is a non-hydrostatic model, designed as a multi-scale simulation system ranging from synoptic down to meso, storm and local terrain scales. As model resolution increases, the forcing due to small-scale complex terrain features including urban structures and surfaces, intensifies. An urban parameterization has been added to the Naval Research Laboratory's mesoscale model, COAMPS. The parameterization attempts to incorporate the effects of buildings and urban surfaces without explicitly resolving them, and includes modeling the mean flow to turbulence energy exchange, radiative transfer, the surface energy budget, and the addition of anthropogenic heat. The Chemical and Biological National Security Program's (CBNP) URBAN field experiment was designed to collect data to validate numerical models over a range of length and time scales. The experiment was conducted in Salt Lake City in October 2000. The scales ranged from circulation around single buildings to flow in the entire Salt Lake basin. Data from the field experiment includes tracer data as well as observations of mean and turbulence atmospheric parameters. Wind and turbulence predictions from COAMPS are used to drive …
Date:
July 19, 2001
Creator:
Leach, M. J. & Chin, H.
Object Type:
Article
System:
The UNT Digital Library