UScholar Works
 
Filters: Date: "1997" Collection: "ir_uspace"
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CreatorTitleDescriptionSubjectDate
1 Myers, Chris J.An asynchronous implementations of the MAXLIST algorithmABSTRACT We present an efficient asynchronous VLSI architecture for calculating running maximum or minimum values over a sliding window. Running maximums or minimums are very useful for many signal and image processing tasks. Our architecture performs the calculation using the MAXLIST algorithm. In...1997
2 Tasdizen, TolgaPIMs and invariant parts for shape recognitionWe present completely new very powerful solutions t o two fundamental problems central to computer vision. 1. Given data sets representing C objects to be stored in a database, and given a new data set for an object, determine the object in the database that is most like the object measured. We so...1997
3 Weinstein, DavidCache-rings for memory efficient isosurface constructionProcessor speeds continue to increase at faster rates than memory speeds. As this performance gap widens, it becomes increasingly important to develop "memory-conscious" algorithms - programs that still optimize instruction count and algorithmic complexity, but that also integrate optimizations for ...Processor speeds; Memory speeds; Computer memory; Cache-rings1997
4 Fernandez, Diego P.Formulation for the static permittivity of water and steam at temperatures from 238 K to 873 K at pressures up to 1200 MPa, including derivatives and Debye- Hückel coefficientsA new formulation is presented of the static relative permittivity or dielectric constant of water and steam, including supercooled and supercritical states. The range is from 238 K to 873 K, at pressures up to 1200 MPa. The formulation is based on the ITS-90 temperature scale. It correlates a selec...Static relative permittivity; Dielectric constant1997
5 Lindstrom, Gary E.The schema coercion problemOver the past decade, the ability to incorporate data from a wide variety of sources has become increasingly important to database users. To meet this need, significant effort has been expended in automatic database schema manipulation. However, to date this effort has focused on two aspects of this...Schema coercion; Database schema manipulation; Schema integration1997
6 Lindstrom, Gary E.Migrating relational data to an OODB: strategies and lessions from a molecular biology experienceThe growing maturity of OODB technology is causing many enterprises to consider migrating relational databases to OODBs. While data remapping is relatively straightforward, greater challenges lie in economically and non-invasively adapting legacy application software. We report on a genetics labora...OODB; Relational data; Data migration1997
7 Kieda, David B.High statistics search for ultrahigh energy gamma-ray emission from Cygnus X-3 and Hercules X-1We have carried out a high statistics (2 X 10 9 events) search for ultrahigh energy g-ray emission from the x-ray binary sources Cygnus X-3 and Hercules X-1. Using data taken with the CASA-MIA detector over a five year period (1990-1995), we find no evidence for steady emission from either source. T...Cygnus X-3; Hercules X-1; Ultrahigh energy; X-rays1997
8 Bohs, Lynn A.Phylogenetic relationships in Solanum (Solanaceae) based on ndhF sequencesA phylogenetic analysis was conducted using sequence data from the chloroplast gene ndhF. Sequences were obtained from 25 species of Solanaceae, including 18 species of Solanum representing five of the seven conventionally recognized subgenera.Solanum; ndhF1997
9 Gesteland, Raymond F.; Atkins, John F.; Felden, Brice; McCutcheon, John P.Probing the structure of the Escherichia coli 10Sa RNA (tmRNA)The conformation of the Escherichia coli 10Sa RNA (tmRNA) in solution was investigated using chemical and enzymatic probes. Single- and double-stranded domains were identified by hydrolysis of tmRNA in imidazole buffer and by lead(II)-induced cleavages. Ribonucleases T1 and S1 were used to map unpai...Covariation; Pseudoknot; Structural Probing; 10Sa RNA; tmRNA1997
10 Normann, Richard A.; Jones, Kelly E.Advanced demultiplexing system for physiological stimulationA CMOS very large scale integration (VLSI) chip has been designed and built to implement a scheme developed for multiplexing/demultiplexing the signals required to operate an intracortical stimulating electrode array. Because the use of radio telemetry in a proposed system utilizing this chip may im...Electrode Array; Stimulation; Telemetry; Microelectrodes; Transistors1997
11 Miller, Joel Steven; Epstein, Arthur J.Magnetic phase diagram of a molecule-based ferrimagnet: weak ferromagnetism and multiple dimensionality crossoversA detailed study of the magnetic behavior of the molecule-based magnet, [MnOEP][HCBD], (OEP=mesooctaethylporphyrinato, HCBD=hexacyanobutadiene) from 1.7 to 20 K was performed. The earlier reported magnetic transition at 19.6 K, ascribed to a crossover from a one-dimensional Heisenberg-like ferrimag...Transition; Temperature; Magnetization1997
12 Miller, Jan D.Direct three-dimensional liberation analysis by cone beam x-ray microtomographyLiberation of valuable minerals during size reduction is an important aspect of mineral processing technology. In practice, most quantitative information on liberation is based on the application of stereological theorems for the analysis of image data from two-dimensional polished sections. On th...Mineral processing; Cone beam x-ray; Microtomography1997
13 Brunvand, Erik L.ACT: A DFT tool for self-timed circuitsThis paper presents a Design for Testability (DFT) tool called ACT (Asynchronous Circuit Testing) which uses a partial scan technique to make macro-module based selftimed circuits testable. The ACT tool is the first oFits kind for testing macro-module based self-timed circuits. ACT modifies design...1997
14 Warner, Homer R.Subtotal Hysterectomy in Modern Gynecology: A Decision AnalysisBiomedical Informatics1997
15 Parker, Steven G.; Hansen, Charles D.; Johnson, Christopher R.Computational steering and the SCIRun integrated problem solving environmentSCIRun is a problem solving environment that allows the interactive construction, debugging, and steering of large-scale scientific computations. We review related systems and introduce a taxonomy that explores different computational steering solutions. Considering these approaches, we discuss why ...Computational steering; Problem solving environment; SCIRun; Volume rendering1997
16 Myers, Chris J.Interfacing synchronous and asynchronous modules within a high-speed pipeline*This paper describes a new technique for integrating asynchronous modules within CI high-speed synchronous pipeline. Our design eliminates potential metastability problems by using Q clock generated by Q stoppable rang oscillator, which is capable of driving the large clock load found in present d...1997
17 Soares, Marshall A.SOAR user's manualAbstract: The development of simulation and test stimulus and checking of circuits with that stimulus is the source or many circuit bugs. The SOAR conversion package is a C library that generates the stimuli for gate-level simulation, circuit simulation and integrated circuit test The conversion pa...SOAR; Conversion package; C library; Simulation1997
18 Miller, Joel Steven; Epstein, Arthur J.Effect of disorder on the linear and nonlinear magnetic susceptibilities of two manganeseporphryin-based magnetsWe analyze the effects of disorder on the magnetic properties of two manganeseporphyrins, [MnTPP][TCNE] •. x(o-DCB) and [MnTPP][TCNE] . • y(o-Xy) and (TPP=meso-tetraphenylporphyrinato, TCNE=tetracyanoethylene, o-Xy=o-xylene, o-DCB=o-dichlorobenzene, x<_3,y<_1). We present data for the in- ...Magnetization; Ferrimagnetic; Spins1997
19 Miller, Joel Steven; Epstein, Arthur J.Lattice- and spin-dimensionality crossovers in a linear-chain-molecule-based ferrimagnet with weak spin anisotropy[MnOEP][HCBD], a member of the metalloporphyrin family of donor-acceptor molecule-based magnets, consists of isolated ferrimagnetic chains of alternating S=2, [MnOEP], and s=1/2, [HCBD] units (OEP=octaethylporphyrinato and HCBD=hexacyanobutadiene). Analysis of the exchange pathways reveals an exchan...Magnetic; Magnetization; Interchain1997
20 Kieda, David B.Limits on the isotropic diffuse flux of ultrahigh energy gamma radiationDiffuse ultrahigh energy g radiation can arise from a variety of astrophysical sources, including the interaction of 1020 eV cosmic rays with the 2.7 K microwave background radiation or the collapse of topological defects created in the early Universe. We describe a sensitive search for diffuse g ...G rays; Ultrahigh energy; Muons; Cosmic rays1997
21 Jacobson, Hans; Gopalakrishnan, GaneshApplication specific asynchronous microengines for efficient high-level controlDespite the growing interest in asynchronous circuits programmable asynchronous controllers based on the idea of microprogramming have not been actively pursued Since programmable control is widely used in many commercial ASICs to allow late correction of design errors to easily upgrade product f...Asynchronous microengines1997
22 Furse, Cynthia M.; Gandhi, Om P.Computations of SAR distributions for two anatomically-based models of the human head using CAD files of commercial telephones and the parallelized FDTD codeThe Finite Difference Time Domain (FDTD) method is well suited for the computation of bio-electromagnetic effects and has become the method of choice for most researchers in this area. There does however remain some limitations on its use. Firstly the FDTD method requires large amounts of memory and...Finite-difference time-domain method; FDTD; SAR distributions; CAD files1997
23 Vardeny, Zeev ValentineSpin dependent photoinduced absorption in a-Si:HWe have studied photoexcitation dynamics in undoped a-Si:H from 80 K to 300 K by the techniques of photoluminescence (PL), photoinduced absorption (PA) and their respective versions of optically detected magnetic resonance, namely PLDMR and PADMR. Both PL and PA spectra are composed of low and high ...a-Si:H; Amorphous silicon; Spin dependent; Photoinduced absorption1997
24 McDaniel, SusanIntergenerational transfers, social solidarity, and social policy: unanswered questions and policy challengesLe transfert intergenerationnel constitue l'essence de la continuite societale et pourtant, il demeure mal conceptualise et analyse. Il se situe Egalement au centre du concept de l'etat sur le bien-etre quant a la redistribution des ressources et partant, des changements/defis actuels quant aux mes...Intergenerational transfers; Social solidarity; Social continuity; Redistribution1997
25 Jacobson, HansApplication specific asynchronous microgengines for efficient high-level controlDespite the growing interest in asynchronous circuits, programmable asynchronous controllers based on the idea of microprogramming have not been actively pursued. Since programmable control is widely used in many commercial ASICs to allow late correction of design errors, to easily upgrade product ...Asynchronous microgengines; Programmable asynchronous controllers1997
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