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The Australian Resource Information And Environment Satellite (Aries), Phase A Study, E. Roberts, J Huntington, R Denize Sep 1997

The Australian Resource Information And Environment Satellite (Aries), Phase A Study, E. Roberts, J Huntington, R Denize

Small Satellite Conference

A Phase A study for the ARIES space-based hyperspectraI remote measurement program has been undertaken by the ARIES consortium of AUSPACE Limited, The Australian Centre for Remote Sensing (ACRES) and the Commonwealth Scientific and Industrial Research Organisation Division of Exploration and Mining (CSIRO DEM). AUSPACE has undertaken the space segment study, ACRES the ground segment design, and the CSIRO has undertaken overall project management for the study, market analysis and algorithm development. The paper describes the outcome of the study including space segment design and algorithm development, and the planned mission. A description of another Australian satellite program, FEDSAT-1, and …

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Development Of The Trsss-1 Satellite As The Major Component Of The Space Based Information System(Sbis) For Effective Decision Support System For Thailand's Natural Resources And Environmental Management, Weerapant Musigasam, Praneet Ditsariyakue, Navanit Aphicholati, Suvit Vibulsresth Sep 1997

Development Of The Trsss-1 Satellite As The Major Component Of The Space Based Information System(Sbis) For Effective Decision Support System For Thailand's Natural Resources And Environmental Management, Weerapant Musigasam, Praneet Ditsariyakue, Navanit Aphicholati, Suvit Vibulsresth

Small Satellite Conference

The paper describes development of the first Thailand Remote Sensing Satellite System (TRSSS-1) by the National Research Council of Thailand (NRCT), Ministry of Science Technology and Environment (MOSTE). The TRSSS-1 project has primarily been developed as a major component of the Space Base Information System (SBIS) for effective decision support system for Thailand's natural resources and environmental management. The Space Based Information System consists of three components namely, the up-stream component, the interfacing component and the downstream component. The up-stream component consists of the Space Segment and the Ground Segment [consisting of the Mission Control Center (MCC) and the Data …

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Intelligent Systems Applied To The Aerospace Industry, Charisse Sary, Roger Werking Sep 1997

Intelligent Systems Applied To The Aerospace Industry, Charisse Sary, Roger Werking

Small Satellite Conference

For years, the aerospace industry has relied on people and their knowledge to make critical decisions. This method of decision-making has become very expensive and unreliable, particularly when used to monitor increasingly complex systems. Intelligent systems and tools are now available that can be used to reduce costs and improve operations. Much work has been done in the area of intelligent systems to support aerospace-related activities. Computer Sciences Corporation (CSC) has conducted studies and developed prototypes using three forms of intelligent systems: case-based reasoning, rule-based reasoning, and model-based reasoning. This paper will present an overview of these technologies and related …

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Forte Hardware-In-Loop Simulation, Kimberly Ruud, Hugh Murray, Troy Moore Sep 1997

Forte Hardware-In-Loop Simulation, Kimberly Ruud, Hugh Murray, Troy Moore

Small Satellite Conference

Fast On-Orbit Recording of Transient Events (FORTE) is a small, low Earth orbit satellite scheduled for launch in August 1997. FORTE is a momentum-biased, gravity-gradient stabilized spacecraft. This paper describes the use of a hardware-in-Ioop simulator, developed by Ithaco Inc. and Los Alamos National Laboratory, in performing FORTE mission simulations. Scenarios studied include separation, acquisition on orbit, control system parameter sensitivity studies, sensor noise simulations, antenna deployment and momentum desaturation. Use of the simulator to refine control algorithms and sequences is also described.

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A Highly Integrated S-Band Transceiver System With Two-Way Doppler Tracking Capability, Robert Bokulic, Christopher Deboy, Daniel Minarik, John Daniels, Sheng Cheng, Jeffrey Sinsky Sep 1997

A Highly Integrated S-Band Transceiver System With Two-Way Doppler Tracking Capability, Robert Bokulic, Christopher Deboy, Daniel Minarik, John Daniels, Sheng Cheng, Jeffrey Sinsky

Small Satellite Conference

The present-day emphasis on smaller, lower cost spacecraft missions has generated significant interest in higher levels of integration for spacecraft electronics. One of the more effective approaches is to integrate the core electronics, including the RF hardware, into a single card-based chassis commonly referred to as an Integrated Electronics Module (IEM). This approach has been adopted for the TIMED spacecraft, currently being built for NASA by the Johns Hopkins University Applied Physics Laboratory. Breaking from traditional approaches, TIMED incorporates the S-band transmitter and receiver functions into the IEM along with the spacecraft digital electronics. These RF functions are integrated with …

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An Alternative To Deployed Thermal Radiators: Deployed Equipment Modules With Individual Package Temperature Control, Nelson Hyman Sep 1997

An Alternative To Deployed Thermal Radiators: Deployed Equipment Modules With Individual Package Temperature Control, Nelson Hyman

Small Satellite Conference

As small satellites' power-to-external area ratios increase, so does the ordeal of securing the necessary thermal radiator area. To provide robust temperature control for any conceivable power density, two new concepts are proposed: a satellite architecture based on deployed equipment modules for increased radiator area, and thermal switches on each package mounted to module panels. A beneficial synergy comes from employing these independent concepts on small satellites whose exterior panels serve as both equipment mounting decks and thermal radiators. Hypothetical examples of multiple module deployments demonstrate the potential for dramatic increases in effective radiator area that allows a comfortably large …

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Command And Data Handling In Your Palm, R.F. Conde, B.Q. Le, J.F. Bogdanski, A.L. Lew, J.A. Perschy, Ann Garrison Darrin Sep 1997

Command And Data Handling In Your Palm, R.F. Conde, B.Q. Le, J.F. Bogdanski, A.L. Lew, J.A. Perschy, Ann Garrison Darrin

Small Satellite Conference

The shift in emphasis to smaller, better, and cheaper spacecraft, resulting from the NASA New Millennium Program (NMP) and similar initiatives in DoD-sponsored programs, demands highly innovative designs that standard electronic packaging cannot meet. Current technology primarily uses conventional packaging with surface mounted or through hole components. This approach increases the board size and the overall system weight owing to the larger sizes of the board and the components mounted on it. Chip-on-Board (COB) technology, where active dice are directly mounted onto a substrate without the need for an intermediate package, provides the basic vehicle to miniaturize electronic hardware. This …

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Spacecraft Energy Storage Systems, Wilf Robinson, James Hanks, Len Spina, Doug Havenhill, Gary Gisler, Steve Ginter, Sharon Brault Sep 1997

Spacecraft Energy Storage Systems, Wilf Robinson, James Hanks, Len Spina, Doug Havenhill, Gary Gisler, Steve Ginter, Sharon Brault

Small Satellite Conference

Flywheel Energy Storage Systems represent an exciting alternative to traditional battery storage systems used to power satellites during periods of eclipse. The increasing demand for reliable communication and data access is driving explosive growth in the number of satellite systems being developed as well as their performance requirements. Power on orbit is the key to this performance, and batteries are becoming increasingly unattractive as an energy storage media. Flywheel systems offer very attractive characteristics for both energy storage in terms of energy density and the number of charge/discharge cycles, together with the important side benefit of spacecraft attitude control.

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A Fault Tolerant Integrated Electronics Module For Small Satellites, M.E. Fraeman Sep 1997

A Fault Tolerant Integrated Electronics Module For Small Satellites, M.E. Fraeman

Small Satellite Conference

The Johns Hopkins University Applied Physics Laboratory (JHU/APL) Space Department has developed the JHU/APL Integrated Electronics Module (APL IEM) architecture for future satellites to minimize development costs while maximizing mission flexibility. The architecture supports both low earth orbit and deep space missions. Redundant and single string configurations are possible. Core spacecraft functions including communications, guidance, navigation, attitude, power control, health and safety, command, and data handling are implemented in the APL IEM. Extensive use is made of industry standards. Adhering to these standards at subsystem boundaries allows us to incrementally improve these designs without impacting the remainder of the system. …

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Effect Of Annual Shearing On Growth Of Five High Desert Shrubs, Larry Rupp, Roger Kjelgren, Jerriann Ernstsen, William Varga Sep 1997

Effect Of Annual Shearing On Growth Of Five High Desert Shrubs, Larry Rupp, Roger Kjelgren, Jerriann Ernstsen, William Varga

Plants, Soils, and Climate Faculty Publications

We investigated growth of native Intermountain West shrub species sheared yearly. Five shrub species with potential for use in naturalized landscapes and roadslide reclamation, silver sage (Artemesia cana), rabbitbrush (Chrysothamnus nauseosus), red-stem dogwood Cornus sericea), chokecherry Prunus virginiana), and curlleaf mountain mahogany (Cercocarpus ledifolius), were planted as seedlings in summer 1989. From 1991-1993, half of the plants were sheard to within 1.15 m (0.5 ft) of the ground every spring prior to or at budbreak. Crown height and crown cross-sectional area were measured every year prior to pruning. significant shearing effects were detected in some shrubs the first year after …

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Draft Environmental Impact Statement, Wasatch Front Regional Council Jul 1997

Draft Environmental Impact Statement, Wasatch Front Regional Council

Elusive Documents

Based upon coordination with public and government agencies, combined with evaluation of technical considerations, Wasatch Front Regional Council has identified a light rail transit (LRT system as the preferred alternative to serve the University-Downtown-Airport Transportation Corridor of Salt Lake City, Utah. The 10.9 mile East-West Corridor will be constructed from the University of Utah Health Sciences Center, through the Central Business District (CBD) to Salt Lake City International Airport. It will interface with the existing north-south LRT line at 400 South and Main Street, and at South Temple and 400 West. The East-West LRT project will fulfill the following objectives: …

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Publishing Books, Everette E. Dennis, Ted Pease, Craig Lamay Jul 1997

Publishing Books, Everette E. Dennis, Ted Pease, Craig Lamay

Journalism and Communication Faculty Publications

WISE COMMENTATORS have long evaluated books and bookmaking. "Man builds no structure which outlives a book," wrote Eugene Fitch Ware in The Book, and Justin M'Carthy's A Ballade of Book-Making declared, "The critics challenge and defend ... of making books there is no end." Others have written loving odes to the book. Garrison Keillor, for instance: The book is a "great and ancient invention," he marveled, "slow to hatch, as durable as a turtle, light and shapely as befits a descendant of the tree .... A handsome, useful object begotten by the passion for truth ... [books] contain our common …

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1997 Calibration Of Flow Model And Optimal Pumping Strategies To Capture Tce Plume At Travis Afb, Ca, Richard C. Peralta, A. H. Aly, J. Atkinson, J. Williams Jul 1997

1997 Calibration Of Flow Model And Optimal Pumping Strategies To Capture Tce Plume At Travis Afb, Ca, Richard C. Peralta, A. H. Aly, J. Atkinson, J. Williams

Civil and Environmental Engineering Faculty Publications

The objective of this study was to develop a ground-water model that can be used in conjunction with an optimization model to optimize the containment and remediation of ground water contaminated with organic compounds at Travis AFB, California (TAFB). Based on studies by WESTON (Roy F. Weston, Inc.), RADIAN (Radian Corporation), and others, the major ground-water quality problem is a plume of TCE that originates at the Oil Spill Area (OSA) and bas migrated to the south and east under the runway. The immediate remediation objective is to stop the movement of the plume.

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Cat Plague - Veterinarian Caution, Clell Bagley Jul 1997

Cat Plague - Veterinarian Caution, Clell Bagley

All Current Publications

Plague has been in the news from several areas in the much from world. The Center for Disease Control has become especially concerned about two aspects of plague (and these concerns affect veterinarians in Utah very directly); first, plague has been increasing in recent years in the western states and second, cats are being recognized more often as being associated with human plague cases.

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Health Programs Which Improve The Marketability Of Calves, Clell Bagley Jul 1997

Health Programs Which Improve The Marketability Of Calves, Clell Bagley

All Current Publications

The “winds of change” have the potential to drastically change the marketing of beef calves in the next few years. Economic pressures may force greater conformity in the way cow-calf producers manage and prepare their calves for market. Those who are slow to conform may be at a disadvantage for marketing.

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Breeding Soundness In Rams: How To Do It..., Clell Bagley Jul 1997

Breeding Soundness In Rams: How To Do It..., Clell Bagley

All Current Publications

In order for ram breeding soundness examinations to be of maximum value to producers they must be relatively thorough as well as consistent. There is so much normal variation between rams that we cannot afford to add additional variability by lack of observation or inconsistent techniques.

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Gps Tracking For Small Sounding Rockets, Darin K. Fowers Jun 1997

Gps Tracking For Small Sounding Rockets, Darin K. Fowers

Utah Space Grant Consortium

Active areas of research often create the need for improved technology to make observations in a way that has not previously been utilized. Such is the case with middle atmospheric research. This 60 to 120 km region of the atmosphere is too low to be directly probed by satellites and too high to be probed by research airplanes or high altitude balloons. Sounding rockets are the only vehicle that can carry instruments for in situ measurements. Up until now only a few methods have been available to track the location of a sounding rocket - radar skin tracking, radio beacon …

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Internet Access For Instrumental Control And Data Viewing At Bear Lake Observatory, Kerry M. Nelson Jun 1997

Internet Access For Instrumental Control And Data Viewing At Bear Lake Observatory, Kerry M. Nelson

Utah Space Grant Consortium

Two departments at Utah State University have collaborated to operate an observatory near Bear Lake, Utah. The purpose of the observatory is to study various phenomena in the upper atmosphere, and houses such instruments as high-power CCD cameras, a radar system, and others. Until recently, only one instrument has had the capability of being controlled and monitored remotely. Since the other instruments do not have this capability, they must be set up and left running, only to have a person drive up to the observatory to check their operation after a given amount of time. This monitoring system is not …

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Validation Study Of A Novel Neonatal Pneumotach, Scott A. Kofoed Jun 1997

Validation Study Of A Novel Neonatal Pneumotach, Scott A. Kofoed

Utah Space Grant Consortium

We have developed a pneumotach for measuring respiratory gas flows in humans and or animals. The pneumotach enables the monitoring of respiratory and metabolic function in human subjects over extended periods of time. A bench study was conducted to validate the new pneumotach system against other predicate devices. The pneumotach under test compared well to the predicate devices used.

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Utah State University Commencement, 1997 – Main Campus, Utah State University Jun 1997

Utah State University Commencement, 1997 – Main Campus, Utah State University

Commencement Programs

104th Annual Commencement of Utah State University

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Insights, Spring, 1997, Utah State University May 1997

Insights, Spring, 1997, Utah State University

Discovery Magazine

Bi-annual alumni, newsletter for the College of Science of Utah State University in Logan.

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The Role Of Alfalfa Weevil Larvae As Prey In Adult Maintenance And Reproduction By Two Ladybird Beetle Species, Douglas R. Richards May 1997

The Role Of Alfalfa Weevil Larvae As Prey In Adult Maintenance And Reproduction By Two Ladybird Beetle Species, Douglas R. Richards

Biology

Ladybird beetles (Coccinella spp.) are important predators of pea aphids (Acyrthosiphon pisum) in alfalfa. Adult ladybird beetles also consume alternative foods such as alfalfa weevil larvae (Hypera postica) and nectar. I compared egg production and ovariole condition of Coccinella septempunctata (an Old World species introduced to North America) and Coccinella transversoguttata (an indigenous North American species) that were maintained on diets of pea aphids, alfalfa weevil larvae, sugar water ("artificial nectar"), or various combinations of these foods. In the first experiment, gravid females of both species continued to lay many eggs and had large ovarioles …

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Results And Analyses Of A Landscape Scale Random Point Avian Census, Eric R. Cannon May 1997

Results And Analyses Of A Landscape Scale Random Point Avian Census, Eric R. Cannon

Biology

We conducted an avian census at 897 random points documenting the presence and relative abundance of breeding bird species across 11 cover types in the Manti-La Sal National Forest. We detected 85 bird species varying in abundance from Dark-eyed Juncos (Junco hyemalis) encountered at 33% of the points to 11 species that were detected only once. Relative abundances of all species by cover type were reported. We found a significant linear relationship between MacArthur's alpha diversity (species number) and the structural complexity of the cover types. However, we failed to find a relationship between sampling effort and the …

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Fourth Siam Conference On Applications Of Dynamical Systems, Siam Activity Group On Dynamical Systems May 1997

Fourth Siam Conference On Applications Of Dynamical Systems, Siam Activity Group On Dynamical Systems

All U.S. Government Documents (Utah Regional Depository)

No abstract provided.

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Wildfire Case Study: Butte City Fire, Southeastern Idaho, July 1, 1994, Bret W. Butler, Timothy D. Reynolds, United States Department Of Agriculture, Forest Service, Intermountain Research Station May 1997

Wildfire Case Study: Butte City Fire, Southeastern Idaho, July 1, 1994, Bret W. Butler, Timothy D. Reynolds, United States Department Of Agriculture, Forest Service, Intermountain Research Station

All U.S. Government Documents (Utah Regional Depository)

The Butte City Fire occurred on July 1, 1994, west of Idaho Falls, ID. Ignited from a burning flat tire, the blaze was driven by high winds that caused it to cover over 20,500 acres in just over 6.5 hours. Sagebrush (Artemisia tridentata ssp. wyomingensis) is the principal shrub species of this high dese~t rangeland. With the absence of vegetation after the fire, erosion increased tremendously. Because the fire occurred on the Idaho National Engineering Laboratory, researchers were able to gather weather information from remote meteorological stations positioned on and around the site.

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A Study Of The Immune Effects Of Orally Ingested Ginseng Combined With Moderate High-Intensity Exercise In Mouse And Human Subjects, Gordon Hunter Pedersen May 1997

A Study Of The Immune Effects Of Orally Ingested Ginseng Combined With Moderate High-Intensity Exercise In Mouse And Human Subjects, Gordon Hunter Pedersen

Biology

Ginseng, an extract of the Panax ginseng plant, and exercise producing a heart rate of 82.5% of maximum were studied alone and in combination for effects on certain immune parameters in mice and young adult humans, and on development of cytomegalovirus (CMV) disease in mice. A motorized treadmill was used in the mouse experiments, with a clinical pulse oximeter adapted to monitor heart rates and arterial oxygen saturation (SaO2). Compared to infected controls whose death rate was 60%, orally administered ginseng (250 mg/kg/day) beginning 48 hours pre-CMV inoculation caused a 25% survivor increase. Exercise (six repetitions of running …

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Polar Distribution Of Neurofilaments In A Nonspiking Central Nervous System Neuron, David Dale Cole May 1997

Polar Distribution Of Neurofilaments In A Nonspiking Central Nervous System Neuron, David Dale Cole

Biology

Immunolabelling of phosphorylated and nonphosphorylated neurofilaments in teleost retinal horizontal cells, which are nonspiking neurons, is described. Light microscopy (postembedding immunolabelling) of retinal tissue sections revealed nonphosphorylated neurofilaments localized to regions where horizontal cell axon terminals, dendrites, and somata are located. In contrast, phosphoneurofilaments were localized to regions where axons and axon terminals of various retinal neurons, including horizontal cells, are found, as in typical spiking central nervous system neurons. Electron microscopy (preembedding immunolabelling) demonstrated that phosphoneurofilaments were localized to cone horizontal cell axons and axon terminals. Immunolabelling of primary cell cultures, however, revealed that axon-specific distribution of phosphoneurofilaments in …

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Hnk-1 Immunoreactivity In In Situ Adult Teleost Retina, Kie Hoon Jung May 1997

Hnk-1 Immunoreactivity In In Situ Adult Teleost Retina, Kie Hoon Jung

Biology

To identify HNK-1 bearing molecules, anti-HNK-1 was used to probe adult hybrid bass retina, including mature, central retina and the circumferential germinal margin (CGM), where new cells are constantly added to the neural circuitry. The HNK-1 antigen was heavily distributed in both of the plexiform (synaptic) layers, in tufts of Müller cell microvilli at the outer limiting membrane, throughout the optic fiber layer, and in tubular processes surrounding cone horizontal cells in the inner nuclear layer. A differential fixation scheme suggested that the Müller cell microvillar and tubular process HNK-1 immunoreactivity was due primarily to glycoproteins, with the remainder possibly …

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Hybrid Bass Retinal Cells In Situ And In Vitro: Structure And Immunocytochemistry, Kyeongsuk Ki May 1997

Hybrid Bass Retinal Cells In Situ And In Vitro: Structure And Immunocytochemistry, Kyeongsuk Ki

Biology

The morphologies of intact retina and acutely isolated retinal neurons are described for a relatively newcomer model for studies of visual physiology, the hybrid bass (Morone chrysops x M. saxatilus). These features are indistinguishable from the white bass (M. chrysops) at the light microscopic level. In situ immunolocalization patterns for several glial and neuronal markers also match previous work in the white bass. Carbonic anhydrase is found in retinal layers corresponding to Müller (glial) cells and horizontal cells; glial fibrillary acidic protein (GFAP) and glutamine synthetase are found in Müller cells only; and the intermediate M, …

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Secondary Reproductive Strategies Of The Eastern Kingbird (Tyrannus Tyrannus), Assessed By Dna Fingerprinting And Egg Physiognomy, Diane L. Rowe May 1997

Secondary Reproductive Strategies Of The Eastern Kingbird (Tyrannus Tyrannus), Assessed By Dna Fingerprinting And Egg Physiognomy, Diane L. Rowe

Biology

Extra-pair fertilization, a secondary breeding strategy, was detected in the eastern kingbird (Tyrannus tyrannus) using multi-locus DNA fingerprinting. I assessed the genetic parentage of 20 broods in a population of kingbirds in central New York. Two DNA probes were used to test for exclusion of nestlings as true offspring of one or both social parents. Band-sharing coefficients and the number of novel bands were used to discern which parent was not a first-degree relative of the nestling in question. No cases of conspecific brood parasitism or quasi-parasitism were documented. However, extra-pair paternity was found to be very common, …

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