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416 Matching Results
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Urban Options Solar Greenhouse Project. Semi-annual technical progress report
The design changes and construction of the Urban Options Solar Greenhouse are described. The greenhouse performance and horticultural and educational activities are discussed. (MHR)
Date:
March 13, 1980
Creator:
Cipparone, L.
Object Type:
Report
System:
The UNT Digital Library
Steering system for a train of rail-less vehicles
A steering system for use with a multiple vehicle train is disclosed which permits tracking without rails of one vehicle after another. This system is particularly useful for moving conveyor systems into and out of curved paths of room and pillar underground mine installations. The steering system features an elongated steering bar pivotally connected to each of adjacent vehicles at end portions of the bar permitting angular orientation of each vehicle in respect to the steering bar and other vehicles. Each end portion of the steering bar is linked to the near pair of vehicle wheels through wheel yoke pivot arms about king pin type pivots. Movement of the steering bar about its pivotal connection provides proportional turning of the wheels to effect steering and tracking of one vehicle following another in both forward and reverse directions.
Date:
March 13, 1981
Creator:
Voight, Edward Theodore
Object Type:
Patent
System:
The UNT Digital Library
Receiver for solar-energy collector having improved aperture aspect
A secondary concentrator for use in receiver systems for linear focusing primary concentrators is provided with reflector wings at each end. The wings increase the capture of light rays reflected from areas adjacent the rim of a primary concentrator, increasing the apparent aperture size of the receiver as viewed from the rim of the primary concentrator. The length, tilt, and curvature of the wing reflectors can be adjusted to provide a receiver having a desired aperture aspect.
Date:
March 13, 1981
Creator:
McIntire, W.R.
Object Type:
Patent
System:
The UNT Digital Library
Perspectives in the theory of nuclear collective motion
This report discusses three different subjects. The first is the development of a generalized version of the VMI (variable moment of inertia) model that ties it to the original form of the IBM (interacting boson model) and provides a possibility of fitting vibrational spectra with generalized vibrational formulas. The second is a suggestion for fitting band crossing calculations of the phenomenological type more completely than has hitherto been done into the framework of the VMI method. The third, which is the most important and far reaching, is the description f a complete mathematical method for the microscopic derivation of the IBM from a conventional shell-model Hamiltonian. In addition to elements already foreseen by previous authors, there is proposed a solution for the most important problem outstanding, not only within the framework of the IBM, but also in all previous work on boson expansion. This is the problem of actually selecting, in a general fashion, the most collective excitations. A criterion is introduced that the subspace constructed from these excitations should possess an average energy that is lower than the rest of the shell model space; the actual implementation of this criterion is explained. 8 tables, 62 references.
Date:
March 13, 1980
Creator:
Klein, A.
Object Type:
Article
System:
The UNT Digital Library
System for utilizing shale oil fines. [Patent application]
A system is provided for utilizing fines of carbonaceous materials such as particles or pieces of oil shale of about one-half inch or less diameter which are rejected for use in some conventional or prior surface retorting process, which obtains maximum utilization of the energy content of the fines and which produces a waste which is relatively inert and of a size to facilitate disposal. The system includes a cyclone retort which pyrolyzes the fines in the presence of heated gaseous combustion products, the cyclone retort having a first outlet through which vapors can exit that can be cooled to provide oil, and having a second outlet through which spent shale fines are removed. A burner connected to the spent shale outlet of the cyclone retort, burns the spent shale with air, to provide hot combustion products that are carried back to the cyclone retort to supply gaseous combustion products utilized therein. The burner heats the spent shale to a temperature which forms a molten slag, and the molten slag is removed from the burner into a quencher that suddenly cools the molten slag to form granules that are relatively inert and of a size that is convenient to handle …
Date:
March 13, 1981
Creator:
Harak, A. E.
Object Type:
Patent
System:
The UNT Digital Library
[News Clip: Operation Clean PKG]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story. This story aired at 5pm.
Date:
March 13, 1989
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: Jail Crowding PKG]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story. This story aired at 6pm.
Date:
March 13, 1989
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: Drug Raid/Operation Clean PKG]
B-roll video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story. This story aired at 5pm.
Date:
March 13, 1989, 5:00 p.m.
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: Jail Crowding]
B-roll video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story. This story aired at 5pm.
Date:
March 13, 1989
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
The Tulia Herald (Tulia, Tex.), Vol. 72, No. 11, Ed. 1 Thursday, March 13, 1980
Weekly newspaper from Tulia, Texas that includes local, state and national news along with extensive advertising.
Date:
March 13, 1980
Creator:
Tooley, Wendell
Object Type:
Newspaper
System:
The Portal to Texas History
The Tulia Herald (Tulia, Tex.), Vol. 78, No. 11, Ed. 1 Thursday, March 13, 1986
Weekly newspaper from Tulia, Texas that includes local, state and national news along with extensive advertising.
Date:
March 13, 1986
Creator:
Tooley, Wendell
Object Type:
Newspaper
System:
The Portal to Texas History
The North Texas Daily (Denton, Tex.), Vol. 70, No. 86, Ed. 1 Friday, March 13, 1987
Daily student newspaper from North Texas State University in Denton, Texas that includes local, state, and campus news along with advertising.
Date:
March 13, 1987
Creator:
Richards, Joey D.
Object Type:
Newspaper
System:
The Portal to Texas History
[Minutes for the TXSSAR Board of Managers Meeting: March 13, 1983]
Minutes from a meeting of the TXSSAR Board of Managers, held on March 13, 1983, in Houston, Texas, including a summary of activities and business discussed. The meeting was called to order and presided by President Tumey, guests and new members of the Board were introduced and welcomed.
Date:
March 13, 1983
Creator:
Sons of the American Revolution. Texas Society.
Object Type:
Text
System:
The UNT Digital Library
[Minutes for the TXSSAR Board of Managers Meeting: March 13, 1981]
Minutes from a meeting of the TXSSAR Board of Managers, held on March 13, 1981, in Corpus Christi, Texas, including a summary of activities and business discussed. The meeting was called to order and presided by President Dan Meadows, with the invocation given by Chaplain A. J. Frank.
Date:
March 13, 1981
Creator:
Sons of the American Revolution. Texas Society.
Object Type:
Text
System:
The UNT Digital Library
[News Clip: Wygant Award]
B-roll video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date:
March 13, 1980, 10:00 p.m.
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: Cardio center]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date:
March 13, 1983, 10:00 p.m.
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: Sulphur Fire]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date:
March 13, 1985, 6:00 p.m.
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
The Bogata News (Bogata, Tex.), Vol. 75, No. 23, Ed. 1 Thursday, March 13, 1986
Weekly newspaper from Bogata, Texas that includes local, state, and national news along with advertising.
Date:
March 13, 1986
Creator:
Nichols, Nanalee & Nichols, Thomas
Object Type:
Newspaper
System:
The Portal to Texas History
Introduction to the physics of ICF capsules
Inertial Confinement Fusion is an approach to fusion which relies on the inertia of the fuel mass to provide confinement. To achieve conditions under which this confinement is sufficient for efficient thermonuclear burn, high gain ICF targets designed to be imploded directly by laser light. These capsules are generally a spherical shell which is filled with low density DT gas. The shell is composed of an outer region which forms the ablator and an inner region of frozen or liquid DT which forms the main fuel. Energy from the driver is delivered to the ablator which heats up and expands. As the ablator expands and blows outward, the rest of the shell is forced inward to conserve momentum. In this implosion process, several features are important. We define the in-flight-aspect-ratio (IFAR) as the ratio of the shell radius R as it implodes to its thickness {Delta}R. Hydrodynamic instabilities during the implosion impose limits on this ratio which results in a minimum pressure requirement of about 100 Mbar. The convergence ratio is defined as the ratio of the initial outer radius of the ablator to the final compressed radius of the hot spot. This hot spot is the central region of …
Date:
March 13, 1989
Creator:
Lindl, J.D.
Object Type:
Article
System:
The UNT Digital Library
Quark search at the CBA
An experiment to search for quarks at the CBA is described. The cross sections for the production of massive quark-antiquark pairs in nucleon-nucleon interactions is estimated, and the experimental design and procedures are described. (WHK)
Date:
March 13, 1983
Creator:
Larsen, R.C.; Leipuner, L.B.; Morse, W.M.; Adair, R.K.; Kasha, H. & Schmidt, M.P.
Object Type:
Report
System:
The UNT Digital Library
Physics of ignition for ICF capsules
The implosion of an ICF capsule must accomplish both compression of the main fuel to several hundred grams per cubic centimeter and heating and compression of the central region of the fuel to ignition. This report discusses the physics of these conditions.
Date:
March 13, 1989
Creator:
Lindl, J.D.
Object Type:
Article
System:
The UNT Digital Library
The present status of the LLNL Evaluated Charged Particle Library (ECPL)
The present report is written with two purposes in mind: to summarize the charged-particle reactions that presently exist in Evaluated Charge Particle Library; and to list all of the low-Z charged-particle reactions for which data exist in the Livermore experimental data compilation. 2 tabs.
Date:
March 13, 1987
Creator:
Mac Gregor, M.H.
Object Type:
Report
System:
The UNT Digital Library
Performance of a lead radiator, gas tube calorimeter
Design and performance of a 4.2 radiation length lead-sandwich, gas tube hodoscope are discussed. The device, measuring 1 /times/ 2 m/sup 2/ in area and 12 cm in depth, was employed in Fermi National Accelerator Laboratory experiment 705. Multiple samplings of anode wires situated within three-walled aluminum tubes were used to generate an X coordinate; similarly, capacitively coupled copper-clad strips were ganged together to yield a Y coordinate. The results reviewed are based on an analysis of electron calibration data taken during a recent six-month running period. In particular, position resolution (in millimeters) is seen to be 0.8 + 3.3/..sqrt..E + 31/E for the 9.92 mm spaced wires and 0.6 + 3.2/..sqrt..E + 32/E for the 12.5 mm strips, where E represents the electron beam energy in GeV. 5 refs., 6 figs.
Date:
March 13, 1989
Creator:
Spiegel, L.; Arenton, M.; Chen, T. Y.; Conetti, S.; Cox, B.; Delchamps, S. W. et al.
Object Type:
Article
System:
The UNT Digital Library
Combination ring cavity and backward Raman waveguide amplifier
A combination regenerative ring and backward Raman waveguide amplifier and a combination regenerative ring oscillator and backward Raman waveguide amplifier which produce Raman amplification, pulse compression, and efficient energy extraction from the CO/sub 2/ laser pump signal for conversion into a Stokes radiation signal. The ring cavity configuration allows the CO/sub 2/ laser pump signal and Stokes signal to copropagate through the Raman waveguide amplifier. The backward Raman waveguide amplifier configuration extracts a major portion of the remaining energy from the CO/sub 2/ laser pump signal for conversion to Stokes radiation.
Date:
March 13, 1981
Creator:
Kurnit, N.A.
Object Type:
Patent
System:
The UNT Digital Library