93,260 Matching Results

Explore Results

Akaklaklak

Description: Akaklaklak is more than a radio play - it is a radio performance - it is first a radio composition... - but also a study of the creative use of modern computer technology - further it is a trip to virtual sound in space - and an attempt to develop radio's acoustic story telling - Radio Art... also performed in other spaces with visual elements - it is a performance with authors playing live with their magic instruments - cycle of 25 mixed media paintings - an folia installation with 300 pictures on windows, glass portales - 300 folia pictures hanging in trees - 130 pictures on cork plates - an outside radio spectacle for a loudspeaker orchestra - live 8-track mixing, a five floor high vertical sound sculpture - a television documentary of authors' sound art directed by Iza Lewenstam Main instrument: Human voice, the paragon of all instruments Others: bird skulls, bones, wooden flutes, stones, bows, drums, bowls, hay, horns, seeds, sand, stamping tubes, rain sticks, bull-roarers, aerophones, rattlers, didgeridoos, dance tubes, computer programmes, samplers, multitrack tape recorders.
Access: This item is restricted to UNT Community Members. Login required if off-campus.
Date: 1989-1993
Creator: Sirén, Pekka, 1946- & Waligórska, Agnieszka, 1949-
Partner: UNT Music Library

L'argent… toujours l'argent !

Description: A study on the coin as an object of reflection (sound value) and as a reference object (advertising). Like a frantic race to save time, the isolation of speed, the quest for the ephemeral. A look at human anxiety.
Access: This item is restricted to UNT Community Members. Login required if off-campus.
Date: 1989-1990
Creator: Tremblay, Marc, 1910-
Partner: UNT Music Library

Carnet de voyage

Description: Travel notes of a little white man in Africa. Shocked by this world, new to me, I tried to transcribe the sensations that I could have while traversing Madagascar: a shock of cultures, thoughts, way of life ... and the position, by always convenient of Western in this country. For each small movement (more or less chained) that could be the pages of a notebook, I looked for different qualities of sound rendering: distant images, flores, under water, opias, aging. ... And then that feeling of always coming back to the same thing ...
Access: This item is restricted to UNT Community Members. Login required if off-campus.
Date: 1989-1990
Creator: Camps, Jean-Christophe, 1964-
Partner: UNT Music Library

Drained Planet

Description: Created in the Electronic Music Studios of Simon Fraser University in Vancouver, Canada with the PODX system of granular sound synthesis of prof. Barry Truax. C.S. went there as an "invited composer" after his award in Bourges.
Access: This item is restricted to UNT Community Members. Login required if off-campus.
Date: 1989-1990
Creator: Stratoudakis, Constantin, 1963-
Partner: UNT Music Library

Gaia

Description: Gaia the goddess of earth lost her power and was forced to exile. The human ingenuity is reaching a never seen limit. The existence of the earth is at stake. This work is based on violin, flute and electroacoustic system, the first separate melodies later fusing in transforming tones. Reflections and echo-effects vibrations are giving the final shape of the composition. The work is framed by the prologue and epilogue; the musical spirit of the prologue is enhanced elaborated, in the main part. Summarizing the whole composition the coda reflashes all the important motives.
Access: This item is restricted to UNT Community Members. Login required if off-campus.
Date: 1989-1990
Creator: Pintér, Gyula, 1954-
Partner: UNT Music Library

A Jete

Description: Recording of Timothy Correa-Hunt's A Jete.
Access: This item is restricted to UNT Community Members. Login required if off-campus.
Date: 1989-1990
Creator: Correa-Hunt, Timothy, 1934-
Partner: UNT Music Library

Mura-Iki

Description: "Mura-Iki" was inspired by the different traditions of playing the flutes, especially those from the Far East. The Tradition of the Shakuhachi was of particular importance due to the extensive use of breathy playing. Thus the tittle "Mura-Iki" which means "Explosive Breath". The piece is though written for the "modern" Boehm Flutes, all played by one performer. The performer has generated sounds of different kinds : breathly sounds with and without tongued attack ; harmonics ; flageolets ; overblowing ; hole slaps ; mixtures of tones and breath ; multiphonics ; break tones ; different kinds of lip pressure, etc... All these kinds of techniques are fed into the computer and then manipulated and edited. In this way, the electronic material emerged : large breathy sounds contrary to breathy attacks, hard percussive sounds and sustained multiphonic-like soundscapes. The performer, on the other hand, performs the sounds in their pure nature origin. In addition to the above mentioned main material, eight double-basses have been synthesized partly for providing a sonic contrast due to the different kinds od attacks and sustained character, and partly to provide a "bottom note" for the feel of floating "tonality" especially during the parts where the multiphonics shade and pass by. Further, the musical form has the same parameters as some of the electronic sounds, which again are derived from the row and the values of the notes. Thus there is a similary in the syntax of the form and the sounds which provide some kind of integral semantics of the piece. Sissel Dorum, flutes
Access: This item is restricted to UNT Community Members. Login required if off-campus.
Date: 1989-1990
Creator: Johnsen, Kjell, 1945-
Partner: UNT Music Library

Sens à Sons

Description: 1 Grrr, Mmm, Vvv, Lou 2 Artifices 3 Toward the golden Aural sense Sensoriel Sounds of senses Senses of sounds Sensations Senses to sounds
Access: This item is restricted to UNT Community Members. Login required if off-campus.
Date: 1989-1990
Creator: Hermitte, Claude, 1955-
Partner: UNT Music Library

Advanced alternate planar geometry solid oxide fuel cells. Interim quarterly technical progress report, November 1, 1988--January 31, 1989

Description: During this quarter, progress was made at Ceramatec in seal development and conductivity measurements of YIG compositions. A creep test was completed on the porous/dense/porous triilayer. IGT provided a discussion on possible interconnect materials. The following tasks are reported on: cell design analysis, program liaison and test facility preparation, cell component fabrication/development, out-of-cell tests. 9 figs, 2 tabs.
Date: December 31, 1989
Creator: Prouse, D.; Elangovan, S.; Khandkar, A.; Donelson, R. & Marianowski, L.
Partner: UNT Libraries Government Documents Department

Advanced Hydride Laboratory

Description: Metal hydrides have been used at the Savannah River Tritium Facilities since 1984. However, the most extensive application of metal hydride technology at the Savannah River Site is being planned for the Replacement Tritium Facility, a $140 million facility schedules for completion in 1990 and startup in 1991. In the new facility, metal hydride technology will be used to store, separate, isotopically purify, pump, and compress hydrogen isotopes. In support of the Replacement Tritium Facility, a $3.2 million, ``cold,`` process demonstration facility, the Advanced Hydride Laboratory began operation in November of 1987. The purpose of the Advanced Hydride Laboratory is to demonstrate the Replacement Tritium Facility`s metal hydride technology by integrating the various unit operations into an overall process. This paper will describe the Advanced Hydride Laboratory, its role and its impact on the application of metal hydride technology to tritium handling.
Date: December 31, 1989
Creator: Motyka, T.
Partner: UNT Libraries Government Documents Department

Advanced Hydride Laboratory

Description: The Replacement Tritium Facility (RTF) is a $140 million reservoir loading and unloading facility using state-of-the-art technology, scheduled for completion in 1990 and startup in 1991. In the RTF, metal hydride technology will be used to store, separate, purify, pump, and compress hydrogen isotopes. In support of the RTF, a $3.2 million ``cold`` process demonstration facility began operation in November, 1987. The purpose of the Advanced Hydride Laboratory (AHL) is to demonstrate the RFT`s metal hydride technology by integrating the various unit operations into an overall process. While much of the RTF`s metal hydride technology had been demonstrated in laboratory bench-scale and pilot-scale units, none of the units had been operated together and integrated into an overall process.
Date: December 31, 1989
Creator: Horen, A. S.
Partner: UNT Libraries Government Documents Department

Advanced turbine design for coal-fueled engines. Quarterly technical report, [July 1, 1989--September 30, 1989]

Description: Coal-fueled gas turbines require the development of a number of new technologies which are being identified by METC and its Heat Engines Contractors. Three significant problems, that were Identified early in the development of coal-fueled engines, are the rapid wear of the turbine airfoils due to particulate erosion, the accumulation of deposits on portions of the airfoil surfaces due to slag deposition and the rapid corrosion of airfoils after the breakdown of surface coatings. The technology development study contained in this program is focused on improving the durability of the turbine through the development of erosion and deposition resistant airfoils and turbine operating conditions. The baseline turbine meanline design vas modified to prevent a local shock on the suction side of the rotor airfoil. New particle dimensionless parameters to be varied were determined. Three first-stage turbine meanline designs have been completed. The design of nev turbine airfoil shapes has been initiated. The calculation of particle trajectories has been completed for the baseline turbine vane and blade airfoils. The erosion model described in the previous technical report vas incorporated in the Post Processing Trajectory Analysis Code.
Date: December 31, 1989
Partner: UNT Libraries Government Documents Department

Advanced Water-Cooled Phosphoric Acid Fuel Cell Development. Quarterly technical progress report No. 14, April--June 1989

Description: Electrode substrate handsheets were formed. A new electrode edge seal with in-plane bubble pressures 40--50 psid and through-plane pressures 8--9 psid was demonstrated. A new polymeric edge seal for ERP`s with bubble pressure greater than 30 psid was tested and shown to be stable after 5 thermal cycles. A thin (1.2 mil) natrix was applied to full-size electrodes using a curtain coater. Full-size coolers were fabricated using both molded and commercial graphite holders.
Date: December 31, 1989
Partner: UNT Libraries Government Documents Department

Advanced water-cooled phosphoric acid fuel cell development. Quarterly technical progress report No. 17, July, August, September, 1989

Description: 150 electrolyte reservoir plates (ERP`s) were carbonized for the small area short stack. A process was developed which allows thin (1--2 mil) matrix to be applied to full-size electrodes using a curtain coater. Full-size cooler samples were molded with and without cooler tube arrays. Two alternative cooler hoses were evaluated and found to be acceptable based on 1400 h testing at simulated conditions.
Date: December 31, 1989
Partner: UNT Libraries Government Documents Department

Advanced water-cooled phosphoric acid fuel cell development. Quarterly technical progress report No. 20, October, November, December, 1989

Description: Fabrication of repeat parts for small area short stack is underway: 100 electrode substrates and 150 ERP substrates were graphitized, and 30 electrode substrates were run through each manufacturing step. Teflon content and compaction pressure of shop-made electrodes for the small area short stack was optimized based on single cell tests. A single cell with GSB-18P catalyst and 1 mg/cm{sup 2} loading is performing very well; performance is 0.66 V per cell after 1200 h at 300 ASF. 3 integral separator plate configurations have been selected for verification in the upcoming short stack. Bubble pressures over 7 psid have been demonstrated in filler bands applied with a production curtain and coating process. 5 full-size (small area) coolers were molded, and encapsulation development for molded and commercial graphite coolers continued.
Date: December 31, 1989
Partner: UNT Libraries Government Documents Department

Alkali/TX{sub 2} catalysts for CO/H{sub 2} conversion to C{sub 1}-C{sub 4} alcohols. Technical progress report, March 1989--August 1989

Description: Ruthenium disulfide catalysts have been synthesized, tested, and characterized during this period of research. It was observed that both the undoped and Cs-doped RuS{sub 2} catalysts produced alcohols and lower amounts of hydrocarbons from H{sub 2}/CO = 1.0 synthesis gas at temperatures above 300{degree}C. Calcination and catalytic testing resulted in partial reduction of the RuS{sub 2} to Ru{sup o}. Calcination under H{sub 2}S prevented the partial reduction of the RuS{sub 2} catalyst, but subsequent catalytic testing again resulted in the formation of a quantity of Ru{sup o}. A Cs-doped RuS{sub 2} catalyst was prepared, but it might have had too high of a loading of Cs. Upon testing, a lower activity was observed for the doped catalyst compared with the undoped catalyst, but the alcohol selectivity was the same for the two catalysts.
Date: December 31, 1989
Creator: Klier, Kamil; Herman, Richard G.; Bastian, Roy D. & Flanagan, Kelly L.
Partner: UNT Libraries Government Documents Department

ALT-II progress report and proposal, December 1989--December 1990

Description: The Advanced Limiter Test (ALT-11) is a joint international program among the United States, the Federal Republic of Germany, and Japan to investigate the performance of a toroidal belt pump limiter in a tokamak, to investigate the behavior of the plasma edge, and to relate edge behavior to overall core energy and particle confinement. The experiments are carried out in the TEXTOR tokamak at KFA Juelich, Federal Republic of Germany. The ALT-II experiment was installed in TEXTOR in 1987 with the objectives of optimizing plasma performance in a limiter tokamak, and of studying the physics of particle removal, density and impurity control, and confinement enhancement by a toroidal belt pump limiter. The ALT-II program addresses large area limiter tokamak operation issues by providing a program specifically directed toward plasma optimization and particle and impurity control by a toroidal belt limiter in a machine dedicated to the investigation of plasma-wall interactions. TEXTOR features the most advanced set of edge plasma diagnostics of any tokamak for the task of diagnosing and understanding the impact of the limiter on the plasma confinement and performance. With the addition of 3.4 MW of neutral beam injection heating (NBI) to the existing 4 MW of ion cyclotron resonance heating (ICRH), TEXTOR also provides power densities equivalent to larger tokamaks.
Date: December 31, 1989
Partner: UNT Libraries Government Documents Department

Analysis of general circulation model results and comparison with regional climatic data, Task 3. [Progress report]

Description: On time scales of greater than one year the variability of weather and climate on a large path of the Earth is dominated by the Southern Oscillation. While current theories of this phenomenon have clarified the role of the interaction between the ocean and the atmosphere in maintaining this oscillation it has so far been unclear whether the Southern Oscillation originates in the ocean, in the atmosphere or during the interaction between the ocean and the atmosphere. In this study we compared simulations of climate in two global circulation models: the coupled OSU GCM in which the atmosphere and ocean interact dynamically and the slab OSU GCM in which the ocean is represented by a static layer.
Date: December 31, 1989
Creator: Cess, R. D. & Hameed, S.
Partner: UNT Libraries Government Documents Department

Analysis of natural convection in a waste glass melter

Description: Laminar natural convection is a two-dimensional cavity with a line heat sink at the top boundary is investigated numerically. The fluid in the cavity is a high Prandtl number fluid with volumetric heat source. Parametric study is conducted to find the effect of variations in Rayleigh number, aspect ratio, sink location, and volumetric heat source on the flow and temperature field. 5 refs.
Date: December 31, 1989
Creator: Choi, Inn Gui
Partner: UNT Libraries Government Documents Department

Applications of computer modeling to fusion research. Progress report, 1988--1989

Description: Progress achieved during this report period is presented on the following topics: Development and application of gyrokinetic particle codes to tokamak transport, development of techniques to take advantage of parallel computers; model dynamo and bootstrap current drive; and in general maintain our broad-based program in basic plasma physics and computer modeling.
Date: December 31, 1989
Creator: Dawson, J. M.
Partner: UNT Libraries Government Documents Department

Arctic hydrology and meteorology. Annual report

Description: To date, five years of hydrologic and meteorologic data have been collected at Imnavait Creek near Toolik Lake, Alaska. This is the most complete set of field data of this type collected in the Arctic of North America. These data have been used in process-oriented research to increase our understanding of atmosphere/hydrosphere/biosphere/lithosphere interactions. Basically, we are monitoring heat and mass transfer between various spheres to quantify rates. These could be rates of mass movement such as hillslope flow or rates of heat transfer for active layer thawing or combined heat and mass processes such as evapotranspiration. We have utilized a conceptual model to predict hydrologic processes. To test the success of this model, we are comparing our predicted rates of runoff and snowmelt to measured valves. We have also used a surface energy model to simulate active layer temperatures. The final step in this modeling effort to date was to predict what impact climatic warming would have on active layer thicknesses and how this will influence the hydrology of our research watershed by examining several streambeds.
Date: December 31, 1989
Creator: Kane, D. L.
Partner: UNT Libraries Government Documents Department

Aromatics oxidation and soot formation in flames. Progress report for year beginning 15 August 1988

Description: Work during this contract period has been concerned with the mechanisms through which aromatics are formed and destroyed in flames, and the processes responsible for soot formation. Recent progress has been primarily in two areas: experiments and modeling of the soot nucleation process in low pressure benzene flames and preparation for experiments on the destruction mechanisms of benzene. In addition, we have incorporated ``weak collision`` formalisms into a fall-off computer code.
Date: December 31, 1989
Creator: Howard, J. B.
Partner: UNT Libraries Government Documents Department

Atmospheric deposition, resuspension and root uptake of plutonium in corn and other grain-producing agroecosystems near a nuclear fuel facility

Description: Plutonium released to the environment may contribute to dose to humans through inhalation or ingestion of contaminated foodstuffs. Plutonium contamination of agricultural plants may result from interception and retention of atmospheric deposition, resuspension of Pu-bearing soil particles to plant surfaces, and root uptake and translocation to grain. Plutonium on vegetation surfaces may be transferred to grain surfaces during mechanical harvesting. Data obtained from corn grown near the US Department of Energy`s H-Area nuclear fuel chemical separations facility on the Savannah River Site was used to estimated parameters of a simple model of Pu transport in agroecosystems. The parameter estimates for corn were compared to those previously obtained for wheat and soybeans. Despite some differences in parameter estimates among crops, the relative importances of atmospheric deposition, resuspension and root uptake were similar among crops. For even small deposition rates, the relative importances of processes for Pu contamination of corn grain should be: transfer of atmospheric deposition from vegetation surfaces to grain surfaces during combining > resuspension of soil to grain surfaces > root uptake. Approximately 3.9 {times} 10{sup {minus}5} of a year`s atmospheric deposition is transferred to grain. Approximately 6.2 {times} 10{sup {minus}9} of the Pu inventory in the soil is resuspended to corn grain, and a further 7.3 {times} 10{sup {minus}10} of the soil inventory is absorbed by roots and translocated to grains.
Date: December 31, 1989
Creator: Pinder, J. E. III; McLeod, K. W.; Adriano, D. C.; Corey, J. C. & Boni, A. L.
Partner: UNT Libraries Government Documents Department

Background modelling in Rietveld analysis

Description: The Rietveld method is a complete profile fitting technique, which requires modelling the total scattering from crystalline samples. Many diffraction experiments involve the analysis of scattering patterns containing additional noncrystalline scattering components; these components are broad oscillations superimposed on the sharp Bragg pattern. Conventional background functions cannot be used for the noncrystalline scattering; but treating the additional scattering as though it were from an amorphous material can provide additional structural information. This is demonstrated using AlPO{sub 4}-5, an aluminophosphate framework molecular sieve. The correlation function for the amorphous component has peaks close to interatomic distances also characteristic of the crystal. The cose agreement suggests that the amorphous component, although lacking long-range periodicity, has a similar atomic arrangement to the crystal. A calibration experiment is performed using a 50-50 wt% quartz-amorphous silica mixture; the crystal structural parameters obtained from Fourier-filtered data are compared with neutron powder diffraction refinement of quartz and single-crystal x-ray results. All refined parameters agree within 3-4 {sigma}. 2 tables, 5 refs, 6 figs. (DLC)
Date: December 31, 1989
Creator: Richardson, J. W. Jr.
Partner: UNT Libraries Government Documents Department