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Creator | Title | Description | Subject | Date |
| 1126 |
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Harrison, Reid R. | MDAC synapse for analog neural networks | Efficient weight storage and multiplication are important design challenges which must be addressed in analog neural network implementations. Many schemes which treat storage and multiplication separately have been previously reported for implementation of synapses. We present a novel synapse c... | Multiplying digital-to-analog converter; MDAC synapse; Analog neural networks | 2004-01-01 |
| 1127 |
 |
Mathews, V. John; Clark, Edward B. | Mean frequency estimation of narrowband signals | Abstract-This letter shows that the single frequency approximation for a narrowband lowpass signal embedded in white noise using the Pisarenko harmonic decomposition algorithm is approximately the power-weighted mean frequency of the signal. Experimental results indicate that this method is superio... | | 2004 |
| 1128 |
 |
Mathews, V. John; Clark, Edward B. | Mean frequency estimation of narrowband signals and its application to doppler ultrasound blood velocity waveform estimation | ABSTRACT Many applications involving Doppler signals require the accurate estimation of the power-weighted mean frequency over short durations of the signal due to it's nonstationarity. This paper presents a novel algorithm for estimating mean frequencies using the eigenstructure of the covariance ... | | 2002 |
| 1129 |
 |
Furse, Cynthia M. | Measured multi-user MIMO capacity in Aircraft | The multipath richness typical of aircraft channels represents a potentially well-suited environment for multi-user multiple-input multiple-output technology (MU-MIMO). This paper presents results from measurements of the achievable MU-MIMO data rates in a Rockwell T-39 Sabreliner, using an open-so... | | 2010 |
| 1130 |
 |
Furse, Cynthia M. | Measurement and modeling of interference for multiple antenna system | This paper provides a detailed signal model based on network theory to predict the multi-antenna capacity in the presence of co- and adjacent channel interference. This model expands on previous channel models by including the simultaneous effects of interference, antenna matching, efficiency, direc... | | 2010-01-01 |
| 1131 |
 |
Furse, Cynthia M. | Measurement and modeling of multiuser multiantenna system in aircraft in the presence of electromagnetic noise and interference | This paper evaluates the accuracy with which the performance of a multi-user multi-antenna system can be predicted with and without considering co-channel interference and noise (Gaussian, α- stable and Cauchy) using a site-specific 3D ray-tracing algorithm as well as with statistical models with G... | | 2011-01-01 |
| 1132 |
 |
Harrison, Reid R. | Measuring neural correlates of insect escape behaviors using a miniature telemetry system | The firing patterns of visual neurons tracking approaching objects need to be translated into appropriate motor activation sequences to generate escape behaviors. Locusts possess an identified neuron highly sensitive to approaching objects (looming stimuli), thought to play an important role in ... | Escape behaviors; Collision avoidance; Looming stimuli; Lobula Giant Motion Detector (LGMD); Telemetry | 2009-04 |
| 1133 |
 |
Liu, Feng | Mechanical stability of ultrathin Ge/Si film on SiO2: the effect of Si/SiO2 interface | We perform two-dimensional linear elastic finite element analysis to investigate the mechanical stability of ultrathin Ge/Si film grown on or bonded to SiO2, using imperfect interface elements between Si and SiO2 to model Si/SiO2 interfacial slippage. We demonstrate that the overall composite film i... | Ultrathin films; Si/SiO2 interface; Mechanical stability | 2005 |
| 1134 |
 |
Horch, Kenneth W. | Mechanical testing of metallic and polymeric intrafascicular electrodes | We are exploring alternatives to Pt/Ir wire for constructing ultra-flexible neural intrafascicular electrodes suitable for chronic implantation. In this study we measured the flexural properties of several kinds of fine metal wires and conducting polymer fibers. The fibers were made either of in... | Intrafascicular electrodes; Polymer fibers | 1994 |
| 1135 |
 |
Stringfellow, Gerald B. | Mechanism for liquid phase epitaxial growth of nonequilibrium compositions producing a coherent interface | A model is presented for growth by so-called composition pulling, wherein an epitaxial deposit grows coherently but with a composition different from that which would be in bulk equilibrium with the liquid phase from which growth occurs. The breakdown of coherent growth occurs when a dislocation nuc... | Lattice-matching overgrowths; Composition pulling; Dislocation interface | 1977 |
| 1136 |
 |
Liu, Feng | Mechanism for nanotube formation from self-bending nanofilms driven by atomic-scale surface-stress imbalance | We demonstrate, by theoretical analysis and molecular dynamics simulation, a mechanism for fabricating nanotubes by self-bending of nanofilms under intrinsic surface-stress imbalance due to surface reconstruction. A freestanding Si nanofilm may spontaneously bend itself into a nanotube without exter... | Nanotube formation; Self-bending nanofilms; Surface-stress imbalance | 2007-04 |
| 1137 |
 |
Eddings, Eric G.; Sarofim, Adel F. | Mechanism reduction and generation using analysis of major fuel consumption pathways for n-heptane in premixed and diffusion flames | Reaction pathway analyses were conducted for three mechanisms (designated as the Pitsch, Utah, and Lawrence Livermore National Lab) for a normal heptane premixed flame (? = 1.9) and a normal heptane opposed diffusion flame, in order to identify the relative importance of the major fuel consumption p... | Pitsch mechanism; Utah mechanism; Lawrence Livermore National Lab mechanism; Mechanism reduction; Heptane premixed flame | 2007 |
| 1138 |
 |
Pershing, David W. | Mechanisms of NOx formation and control: alternative and petroleum-derived liquid fuels | Petroleum-, coal- and shale-derived liquid fuels were burned in a downfired tunnel furnace to assess the impact of fuel properties on the formation and control of NOx emissions. A nitrogen-free oxidant mixture (Ar, C02 , 02) was used to isolate fuel NOx formation. Under excess air conditions fuel N... | Exhaust emissions; Alternative fuels; Petroleum-derived liquid fuels | 1981 |
| 1139 |
 |
Furse, Cynthia M.; Gandhi, Om P. | Memory efficient method of calculating specific absorption rate in CW FDTD simulations | Specific absorption rate (SAR) distributions in man models are often calculated using the finite-difference time-domain (FDTD) method. The traditional method of calculating SAR requires calculation and storage of the three electric field components in each cell and is therefore very time- and memor... | Specific absorption rates; SAR; FDTD simulations; Finite-difference time-domain; Mass-normalized time-averaged energy distribution | 1996-05 |
| 1140 |
 |
Balasubramonian, Rajeev | Memory hierarchy reconfiguration for energy and performance in general-purpose processor architectures | Conventional microarchitectures choose a single memory hierarchy design point targeted at the average application. In this paper we propose a cache and TLB layout and design that leverages repeater insertion to provide dynamic low-cost configurability trading of size and speed on a per application ... | Translation lookaside buffer (TLB) | 2000 |
| 1141 |
 |
Regehr, John | Memory safety and untrusted extensions for TinyOS | Sensor network applications should be reliable. However, TinyOS, the dominant sensor net OS, lacks basic building blocks for reliable software systems: memory protection, isolation, and safe termination. These features are typically found in general-purpose operating systems but are believed to be t... | | 2006-01-01 |
| 1142 |
 |
Regehr, John; Eide, Eric Norman | Memory safety and untrusted extensions for TinyOS | Sensor network applications should be reliable. However, TinyOS, the dominant sensor net OS, lacks basic building blocks for reliable software systems: memory protection, isolation, and safe termination. These features are typically found in general-purpose operating systems but are believed to b... | TinyOS | 2006-06-30 |
| 1143 |
 |
Parker, Steven G. | Memory sharing for interactive ray tracing on clusters | We present recent results in the application of distributed shared memory to image parallel ray tracing on clusters. Image parallel rendering is traditionally limited to scenes that are small enough to be replicated in the memory of each node, because any processor may require access to any piece o... | Ray tracing; Out-of-core rendering; Distributed shared memory; Cache miss reduction; Parallel rendering | 2005-02 |
| 1144 |
 |
Zhang, Lixin; Carter, John | Memory system support for image processing | Processor speeds are increasing rapidly, but memory speeds are not keeping pace. Image processing is an important application domain that is particularly impacted by this growing performance gap. Image processing algorithms tend to have poor memory locality because they access their data in a non-se... | Processor speeds; Memory system support; Memory speeds | 1999 |
| 1145 |
 |
Parker, Steven G. | Memory-savvy distributed interactive ray tracing | Interactive ray tracing in a cluster environment requires paying close attention to the constraints of a loosely coupled distributed system. To render large scenes interactively, memory limits and network latency must be addressed efficiently. In this paper, we improve previous systems by moving to ... | | 2004 |
| 1146 |
 |
Roundy, Shadrach J. | MEMS testing: transition from millions to billions to trillions | Sensors, specifically MEMSbased, have created multiple market tornados over the past 40 years. Most recently there has been a market explosion driven by the widespread adoption of MEMS sensing devices in mobile consumer applications. In the past 5 years the worldwide market has grown from roughly 10... | | 2012-01-01 |
| 1147 |
 |
Mastrangelo, Carlos H. | MEMS-based hemispherical resonator gyroscopes | This paper introduces a fabrication technique that uses planar MEMS micromachining processes to produce hemispherical resonating shells for gyroscopes. The hemispheres exhibit a quality factor in excess of 20,000 with resonant frequencies in the range of 20 kHz for the 4-node wineglass mode. The fab... | | 2012-01-01 |
| 1148 |
 |
Balasubramonian, Rajeev | MemZip: exploring unconventional benefits from memory compression | Memory compression has been proposed and deployed in the past to grow the capacity of a memory system and reduce page fault rates. Compression also has secondary benefits: it can reduce energy and bandwidth demands. However, most prior mechanisms have been designed to focus on the capacity metric an... | | 2014-01-01 |
| 1149 |
 |
Balasubramonian, Rajeev | Message from the general chair | I am very pleased to welcome all attendees to the 2012 IEEE International Symposium on Performance Analysis of Systems and Software (ISPASS) in New Brunswick, New Jersey on April 1-3, 2012. The conference represents the hard work of several organizing committee members and contributing authors. We a... | | 2012-01-01 |
| 1150 |
 |
Stoller, Leigh B. | Message passing support in the Avalanche widget | Minimizing communication latency in message passing multiprocessing systems is critical. An emerging problem in these systems is the latency contribution costs caused by the need to percolate the message through the memory hierarchy (at both sending and receiving nodes) and the additional cost of ma... | Avalanche widget; Message passing; Cache coherence; Message copying; Cache miss rates; Computer memory | 1996 |
