UScholar Works
 
Filters: Date: "2001" Collection: ir_uspace
101 - 125 of 137
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CreatorTitleDescriptionSubjectDate
101 Hansen, Charles D.; Johnson, Christopher R.Prototype system for synergistic data displayMultimodal interfaces have been shown to increase user performance for a variety of tasks. We have been investigating the synergistic benefits of haptic scientific visualization using an integrated, semi-immersive virtual environment. The Visual Haptic Workbench provides multimodal interaction; imm...Visual Haptic Workbench; Haptic interfaces; Scientific visualization2001
102 Truong, Thanh; Sarofim, Adel F.Quantum mechanic study of high molecular mass compounds in combustion conditionsExperimental studies on soot formation show interesting trends that can only be explained by a polymerization pathway. These experimental findings are reviewed and ab initio calculations are used to evaluate possible mechanistic pathways. A sequence of chemical reactions between aromatic compounds a...High molecular mass compounds; Quantum mechanics; Soot formation2001
103 Balasubramonian, RajeevReducing the complexity of the register file in dynamic superscalar processorsDynamic superscalar processors execute multiple instructions out-of-order by looking for independent operations within a large window. The number of physical registers within the processor has a direct impact on the size of this window as most in-flight instructions require a new physical register a...Dynamic superscalar processors; Register file; Instruction-level parallelism; Microarchitecture; Reorder buffer2001
104 Wolfinger, Nicholas H.Reexamining the economic costs of marital disruption for womenChanges in labor force participation and returns may have lessened divorce's traditionally severe economic consequences for women. Method. We use recent data from the National Survey of Families and Households (NSFH) to analyze the economic well-being of women whose marriages ended between the firs...2001
105 Mcpherson, Brian JamesRegional-scale permeability by heat flow calibration in the Powder River Basin, WyomingAbstract. Forward modeling of coupled fluid and heat flow in the Powder River basin, Wyoming, is used to explain anomalously high heat flow values observed in the southern portion of the basin. Effective basin-scale permeabilities of selected Powder River basin aquifers and aquitards were calibrat...2001
106 Broughton, JohnResource intensification and late Holocene human impacts on Pacific coast bird populations: evidence from the Emeryville shellmound avifaunaAnthropologists and conservation biologists have commonly assumed that the distributions and abundances of vertebrate resources recorded during the early historic period in North America reflected a "pristine" condition. This view follows from the perception that Native American population densities...Resource intensification; Holocene human impacts; Foraging efficiency; Harvest pressure; Bird populations; Emeryville shellmound2001
107 Downes, Stephen M.Review of Susan Oyama, Ontogeny of information: developmental systems and evolutionSusan Oyama's book thoroughly deserved reprinting. This is an exciting and engaging work that is still timely 15 years after its initial publication. Some of the text of the new edition is revised, and Oyama has added a new Preface and an Afterword. The new Foreword by Richard Lewontin provides a s...Information theory; Biology; Information gene concept; Morphological traits2001
108 Baker, Jason; Hsieh, Wilson C.Runtime aspect weaving through metaprogrammingWe describe an extension to the Java language, Handi-Wrap, that supports weaving aspects into code at runtime. Aspects in Handi-Wrap take the form of method wrappers, which allow aspect code to be inserted around method bodies like advice in AspectJ. Handi- Wrap offers several advantages over sta...Metaprogramming; Runtime; Handi-Wrap2001
109 Stringfellow, Gerald B.Sb enhancement of lateral superlattice formation in GaInPEpitaxial layers of GaInP were grown by organometallic vapor phase epitaxy with small amounts of TESb added to control the surface bonding. Above a concentration of Sb/III(v)=0.016, 12 K photoluminescence measurements show that the band gap is reduced, as compared to completely disordered GaInP, by ...Tin; Epitaxy; Photoluminescence2001
110 Jarrard, Richard D.Scientific methods: an online bookThis book was originally intended as ˜How to do science™, or ˜How to be a scientist™, providing guidance for the new scientist, as well as some reminders and tips for experienced researchers. Such a book does not need to be written by the most expert or most famous scientist, but by one who...Science; Process; Method2001
111 Williams, Clayton C.Single electron tunneling detected by electrostatic forceSingle electron tunneling events between a specially fabricated scanning probe and a conducting surface are demonstrated. The probe is an oxidized silicon atomic force microscope tip with an electrically isolated metallic dot at its apex. A voltage applied to the silicon tip produces an electrostat...Single electron; Tunneling events; Scanning tunneling microscope; Electrostatic modeling2001
112 Salari, Sonia LynneSocial and environmental infantilization of aged persons: observations in two adult day care centersThis study examines the social environments, staff behavior, and social interaction of elderly clients in two adult day care centers. Goffman's (1961) description of the psycho-social effects of the "total institution" is used as a framework for conceptualizing the effects of "partial institutions" ...Infantilization2001
113 Pugmire, Ronald J.Soot formation during coal pyrolysisSoot can be found in almost all combustion and pyrolysis systems. In a coal system, the impact of soot on coal combustion can be identified in two ways. First, soot particles suspended in the combustion flame significantly enhance radiative heat transfer near the burner due to their large surface ar...2001
114 Ehleringer, James R.Sourcing drugs with stable isotopesCarbon (δ13C) and nitrogen (δ15N) isotope ratios at natural abundance levels are useful tools in determining the region-of-origin for both cocaine and heroin. Here we show that cocaine originating from different geographic regions of South America exhibited pronounced differences in their δ13C a...Stable isotopes; Drug sourcing; Region-of-origin signature; Isotope ratio analysis2001
115 Stringfellow, Gerald B.Spectroscopic study of surfactant enhanced organometallic vapor phase epitaxy growth of GaInPSamplen s of GaxIn1-xP grown by organometallic vapor phase epitaxy on (001) GaAs substrates by addition of TESb demonstrating a lateral superlattice compositional modulation (CM) have been studied by low temperature polarized photoluminescence (PL), power dependent PL, and photoluminescence excitati...Organometallic vapor; Photoluminescence excitation; Spectroscopy2001
116 Krensky, BethStory QuiltMedium: mixed media on library catalogue cards; Dimensions: 5-1/2' x 10-1/2'2001; 2002
117 Krensky, BethStory Quilt (detail)Medium: mixed media on library catalogue cards; Dimensions: 5-1/2' x 10-1/2'2001; 2002
118 Miller, Joel StevenStructure, optical and magnetic behaviour of meso-tetraphenyl-porphyrinatoiron(III) tetracyanoethenide, [FeIII(TPP)]+[TCNE].-*The direct redox reaction between tetracyanoethylene (TCNE) and meso-tetraphenylporphyrinatoiron(II), [FeII(TPP)], formed the electron transfer salt (ETS) [FeIII(TPP)][TCNE], which has been structurally, spectroscopically, and magnetically characterized. It has an extended one-dimensional linear ch...Magnets; Spin; Electron2001
119 Stang, Peter J.Studies in the cycloproparene series: cycloaddition reactions of diarylmethylidenecycloproparenesDiarylmethylidenecyclopropanaphthalenes 4b-d add diphenylisobenzofuran (DPIBF) and α-pyrone across the exocyclic double bond to give ring expanded products 11b-d and 13b-d that result from subsequent relief of ring strain in the non-isolable spirocyclic intermediates 10 and 12, respectively. The be...Cycloproparene series; Cycloaddition; Diarylmethylidenecycloproparenes; Ab initio calculations; Strained aromatics; Acetylenic-iodonium salts; Crystal structures; Cyclobutanes, Diels-Alder cycloaddition; norcaradienes2001
120 Stringfellow, Gerald B.; Shurtleff, James KevinSurfactant effects on doping of GaAs grown by organometallic vapor phase epitaxyRecently, the addition of the isoelectronic surfactant Sb during organometallic vapor phase epitaxy (OMVPE) of GaInP was shown to eliminate ordering, resulting in a significant change in the band gap energy. These results suggest that surfactants added during growth could have profound affects on ot...Gallium arsenide; Surfactants; Semiconductors2001
121 Beckerle, Mary C.Targeting of zyxin to sites of actin membrane interaction and to the nucleusThe localization of proteins to particular intracellular compartments often regulates their functions. Zyxin is a LIM protein found prominently at sites of cell adhesion, faintly in leading lamellipodia, and transiently in cell nuclei. Here we have performed a domain analysis to identify regions in ...Zyxin; Actin; LIM domains; Focal adhesions; Lamellipodia; Cytoskeletal architecture2001
122 Shirley, Peter S.; Parker, Steven G.Temporally coherent interactive ray tracingAlthough ray tracing has been successfully applied to interactively render large datasets, supersampling pixels will not be practical in interactive applications for some time. Because large datasets tend to have subpixel detail, one-sample-per-pixel ray tracing can produce visually distracting popp...Temporally coherent; interactive ray tracing; large datasets2001
123 Wight, Charles AlbertThermal dissociation kinetics of solid and liquid ammonium nitrateThermogravimetry has been used to study the kinetics of the thermal dissociation of solid and liquid ammonium nitrate. Model-fitting and model-free kinetic methods have been applied to the sets of isothermal and nonisothermal measurements to derive kinetic characteristics of the processes. The appli...Thermal dissociation kinetics2001
124 Lupton, John MarkTime delayed electroluminescence overshoot in single layer polymer light-emitting diodes due to electrode luminescence quenchingWe investigate the transient response of single layer polymer light-emitting diodes (LEDs) based on poly[2-methoxy, 5-(2'ethyl-hexyloxy)-1,4-phenylene vinylene] (MEH-PPV). An electroluminescence overshoot is observed between 1 and 2 μs after turning off the voltage pulse, depending on temperature...MEH-PPV; Delayed electroluminescence; Overshoot; Single layer; Electrode luminescence quenching; Transient responses2001
125 Boehme, ChristophTime domain measurement of spin-dependent recombinationA defect characterization method is presented, the time domain measurement of spin-dependent recombination (TSR). Recombination between paramagnetic states is changed rapidly by electron spin resonant excitation through strong nanosecond microwave pulses. After the pulse, a slow relaxation of the re...Spin-dependent recombination2001
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