Filters: Collection: "ir_uspace" Year End: 2006
| Creator | Title | Description | Subject | Date | ||
|---|---|---|---|---|---|---|
| 351 |
 |
Harrison, Reid R.; Myers, Chris J.; Schlegel, Christian | Analog decoding of product codes | A method is presented for analog softdecision decoding of block product codes (block turbo codes). Extrinsic information is exchanged as analog signals between component row and column decoders. The component MAP decoders use low-power analog computation in subthreshold CMOS circuits to implement th... | 2002 | |
| 352 |
 |
Myers, Chris J.; Schlegel, Christian | Analog MAP decoder for (8, 4) hamming code in subthreshold CMOS | An all-MOS analog implementation of a MAP decoder is presented for the (8, 4) extended Hamming code. This paper describes the design and analysis of a tail-biting trellis decoder implementation using subthreshold CMOS devices. A VLSI test chip has recently returned from fabrication, and preliminary ... | 2001 | |
| 353 |
 |
Myers, Chris J.; Schlegel, Christian | Analog MAP decoder for (8, 4) hamming code in subthreshold CMOS | Abstract - An all-MOS analog tail-biting MAP decoder is presented for an (8,4) Hamming code. The decoder implements a probability propagation algorithm using subthreshold CMOS networks. Physical results verify the expected behavior of the decoderand demonstrate robustness of analog decoding circuit... | 2001 | |
| 354 |
 |
Harrison, Reid R. | Analog MAP decoder for (8,4) hamming code in subthreshold CMOS | An all-MOS analog tail-biting MAP decoder is presented for an (8,4) Hamming code. The decoder implements a probability propagation algorithm using subthreshold CMOS networks. Physical results verify the expected behavior of the decoder and demonstrate robustness of analog decoding circuits. | MAP decoder; Hamming code; VLSI | 2004-01-01 |
| 355 |
 |
Harrison, Reid R. | Analog VLSI implementation of a visual interneuron: enhanced sensory processing through biophysical modeling | Flies are capable of rapid, coordinated flight through unstructured environments. This flight is guided by visual motion information that is extracted from photoreceptors in a robust manner. One feature of the fly's visual processing that adds to this robustness is the saturation of wide-fi_x000... | 1999-01-01 | |
| 356 |
 |
Harrison, Reid R. | Analog VLSI model of the fly elementary motion detector | Flies are capable of rapidly detecting and integrating visual motion information in behaviorly-relevant ways. The first stage of visual motion processing in flies is a retinotopic array of functional units known as elementary motion detectors (EMDs). Several decades ago, Reichardt and colleagues de... | 1998-01-01 | |
| 357 |
 |
Riloff, Ellen M. | Analyses for elucidating current question answering technology | In this paper, we take a detailed look at the performance of components of an idealized question answering system on two diff erent tasks: the TREC Question Answering task and a set of reading comprehension exams. We carry out three types of analysis: inherent properties of the data, feature analys... | TREC Question Answering task | 2001-12 |
| 358 |
 |
Carter, John B. | Analysis of avalanche's shared memory architecture | In this paper, we describe the design of the Avalanche multiprocessor's shared memory subsystem, evaluate its performance, and discuss problems associated with using commodity workstations and network interconnects as the building blocks of a scalable shared memory multiprocessor. Compared to other ... | Avalanche multiprocessor; Shared memory | 1997 |
| 359 |
 |
Sperry, John S. | Analysis of circular bordered pit function I. Angiosperm vessels with homogenous pit membranes | A model predicted pit and vessel conductivity, the air-seed pressure for cavitation, and the implosion pressure causing vessel collapse. Predictions were based on measurements from 27 angiosperm species with circular bordered pits and air-seed pressures of 0.2-11.3 MPa. Vessel implosion pressure exc... | Functional wood anatomy; hydraulic architecture; plant biomechanics | 2004 |
| 360 |
 |
Sperry, John S. | Analysis of circular bordered pit function II. Gymnosperm tracheids with torus-margo pit membranes | A model of xylem conduit function was applied to gymnosperm tracheids with torus-margo pit membranes for comparison with angiosperm vessels. Tracheids from 17 gymnosperm tree species with circular bordered pits and air-seed pressures from 0.8 to 11.8 MPa were analyzed. Tracheids were more reinforced... | Functional wood anatomy; hydraulic architecture; plant biomechanics | 2004 |
| 361 |
 |
Furse, Cynthia M. | Analysis of spread spectrum time domain reflectometry for wire fault location | Spread spectrum time domain reflectometry (SSTDR) and sequence time domain reflectometry have been demonstrated to be effective technologies for locating intermittent faults on aircraft wires carrying typical signals in flight. This paper examines the parameters that control the accuracy, latency, ... | Spread spectrum; Sequence time domain reflectometry; STDR; SSTDR; Wire fault location; Aging wire detection; Arc detection | 2005-12 |
| 362 |
 |
Gouw, Launce G.; McKenna, Catherine K.; Digre, Kathleen B.; Placek, Louis J. | Analysis of the dynamic mutation in the SCA7 gene shows marked parental effects on CAG repeat transmission. | The gene for spinocerebellar ataxia 7 (SCA7) includes a transcribed, translated CAG tract that is expanded in SCA7 patients. We have determined expansions in 73 individuals from 17 SCA7 kindreds and compared them with repeat lengths of 180 unaffected individuals. Subjects with abnormal expansions co... | Genetics; Biosynthesis; SCA7 Gene | 1998-03-07 |
| 363 |
 |
Warner, Homer R. | Analysis of the Role of Indicator Technics in Quantitation of Valvular Regurgitation | Biomedical Informatics | 1962 | |
| 364 |
 |
Beckerle, Mary C. | Analysis of the roles of microtubules and actin in erythrophore intracellular motility | The Holocentrus erythrophore, a red pigment cell, represents a model system for the study of organized intracellular transport. We have investigated the possibility that microtubules and actin are integral components of the pigment translocating motility machine. | Actin; Actomyosin; Erythrophore; Pigment | 1983 |
| 365 |
 |
Mathews, V. John | Analysis of the short-time unbiased spectrum estimation algorithm | Abstract- The short-time unbiased spectrum estimation (STUSE) algorithm is analyzed and expressions for the mean and variance of the spectrum estimates are derived. The STUSE algorithm deliberately adds biased spectrum estimates in order to yield unbiased estimates and at the same time have excellen... | 1985 | |
| 366 |
 |
Miller, Jan D. | Analysis of the surface potential developed by non-reactive ionic solids | The sign of the surface potential for complex non-reactive ionic solids cannot be predicted solely from consideration of the hydration energy of gaseous ions which constitute the ionic lattice. Accurate analysis of these systems must involve the hydration energy of surface ions, which requires knowl... | Lattice; dipole; Madelung Constants | 1976 |
| 367 |
 |
Sobh, Tarek M. | Analysis of tolerance for manufacturing geometric objects from sense data | In this work we address the problem of manufacturing machine parts from sense data. Constructing geometric models for the objects from sense data is the intermediate step in a reverse engineering manufacturing system. Sensors are usually inaccurate, providing uncertain sense information. We constr... | Manufacture | 1993 |
| 368 |
 |
Weinstein, David | The analytic 3-D transform for the least-squared fit of three pairs of corresponding points | We derive the analytic transformation for minimizing the summed-squared-distance between three movable points in one three-space pose to three corresponding fixed points in another three-space pose. This change of basis is a general rigid-body transformation (translation and rotation), with the addi... | 3-D transform; summed-squared-distance; three movable points; Three-space | 1998 |
| 369 |
 |
Vaughn, Cecily P.; Crockett, David K.; Lim, Megan S.; Elenitoba-Johnson, Kojo S.J. | Analytical characteristics of ICAT-LC-MS/MS for quantitative proteomics studies | Recent studies have employed isotope-coded affinity tags (ICAT) in concert with tandem mass spectrometry (MS/MS) to assess differential expression of proteins on a proteomic scale and perform unbiased quantitative comparisons between samples from different physiological or disease states. We sought ... | isotope-coded affinity tags; ICAT; mass spectrometry; MS/MS; proteomic scale; FL | 2005-06-03 |
| 370 |
 |
Wu, Yong-Shi | Analyzing powers for ∏±-13C scattering at T∏=100 MeV | Measurements of the analyzing power for the nC(rr±,rr±) reaction at Trr = 100 MeV have been made at TRIUMF using a polarized target consisting of 99% 1 3C enriched butanol. Data were obtained for the ground and 3.68 MeV excited states at angles from 110° to 150° in 10° steps. The data are con... | 1992-02 | |
| 371 |
 |
Yang, Yue; Gopalakrishnan, Ganesh; Lindstrom, Gary E.; Slind, Konrad Lee | Analyzing the Intel Itanium memory ordering rules using logic programming and SAT | We present a non-operational approach to specifying and analyzing shared memory consistency models. The method uses higher order logic to capture a complete set of ordering constraints on execution traces, in an axiomatic style. A direct translation of the semantics to a constraint logic program... | Intel Itanium memory; Ordering rules; Sared memory; Consistency models | 2003 |
| 372 |
 |
Sperry, John S. | Anatomy of the palm Rhapis excelsa, IX. Xylem structure of the leaf insertion | STEMS OF PERENNIAL PLANTS, particularly trees, represent a considerable investment in biomass. Trees can survive even under the most adverse conditions, but only if the hydraulic integrity of the stem is preserved. A very important and vulnerable part of the stem is the xylem. As water is pulled int... | Palm stems; Palm stem anatomy; Palm leaves; Leaf insertion; Vessel network; Vessel-length distribution; Primary vascular stem tissue; Hydraulic architechture; Water column | 1983 |
| 373 |
 |
Sperry, John S. | Anatomy of the palm Rhapis excelsa, VIII. Vessel network and vessel-length distribution in the stem | THE CONCEPT of the vessel, a conducting unit consisting of a series of vessel elements lined up end to end, has been known for well over a century (e.g., Hartig, 1878). The fact that vessels are of limited length is of considerable functional importance. If a vessel is damaged (for example, by an in... | Palm stems; Palm stem anatomy; Vessel network; Vessel-length distribution; Primary vascular stem tissue; Hydraulic architechture; Water column | 1982 |
| 374 |
 |
Chuaqui, Miguel Basim | Ancient wing for solo flute | Archaeopteryx (Ancient Wing) was a prehistoric animal, presumably the "missing link" between reptiles and birds. I portrayed the dual nature of the animal by writing music that represents it both as a lizard-like motionless reptile, suddenly scuttling through the forest, as well as an ungainly bird,... | 1998 | |
| 375 |
 |
Miller, Jan D. | Anisotropic character of talc surfaces as revealed by streaming potential measurements, atomic force microscopy, and molecular dynamics simulations | A study of the interfacial properties of the basal plane and the edge surfaces of talc is described in this paper. The isoelectric-point measured at the two different crystallographic planes by the streaming potential method was found to be similar and exists at about pH 3.0. In the case of the edg... | Streaming potential; Scanning electron microscope; Atomic force microscope | 2006 |