Now showing items 652-671 of 1884

• #### Gentamicin Reduces Calcific Nodule Formation by Aortic Valve Interstitial Cells In Vitro ﻿

(2013)
Gentamicin is a widely employed antibiotic, but may reduce calcium uptake by eukaryotic cells. This study was conducted to determine whether gentamicin reduces calcification by porcine aortic valvular interstitial cells ...
• #### A Geometric Hidden Markov Tree Wavelet Model ﻿

(2003-08-01)
In the last few years, it has become apparent that traditional wavelet-based image processing algorithms and models have significant shortcomings in their treatment of edge contours. The standard modeling paradigm exploits ...
• #### Geometric Methods for Wavelet-Based Image Compression ﻿

(2003-08-01)
Natural images can be viewed as combinations of smooth regions, textures, and geometry. Wavelet-based image coders, such as the space-frequency quantization (SFQ) algorithm, provide reasonably efficient representations for ...
• #### Geometric Tools for Image Compression ﻿

(2002-11-01)
Images typically contain strong geometric features, such as edges, that impose a structure on pixel values and wavelet coefficients. Modeling the joint coherent behavior of wavelet coefficients is difficult, and standard ...
• #### Geometry Compression of Normal Meshes using Rate-Distortion Algorithms ﻿

(2003-06-01)
We propose a new rate-distortion based algorithm for compressing 3D surface geometry represented using triangular normal meshes. We apply the Estimation-Quantization (EQ) algorithm to compress normal mesh wavelet coefficients. ...

(1971)
• #### Getting Real: A Naturalistic Methodology for Using Smartphones to Collect Mediated Communications ﻿

(2012)
This paper contributes an intentionally naturalistic methodology using smartphone logging technology to study communications in the wild. Smartphone logging can provide tremendous access to communications data from real ...
• #### Giant tunable Faraday effect in a semiconductor magneto-plasma for broadband terahertz polarization optics ﻿

(2012)
We report on a giant Faraday effect in an electron plasma in n- InSb probed via polarization-resolved terahertz (THz) time-domain spectroscopy. Polarization rotation angles and ellipticities reach as large as π/2 and ...
• #### GNOMES: A Testbed for Low-Power Heterogeneous Wireless Sensor Networks ﻿

(2003-05-20)
Continuing trends in sensor, semiconductor and communication systems technology (smaller, faster, cheaper) make feasible very dense networks of fixed and mobile wireless devices for use in many different sensing and ...
• #### Gold Nanoparticle Aggregation for Quantification of Oligonucleotides: Optimization and Increased Dynamic Range ﻿

(2012)
A variety of assays have been proposed to detect small quantities of nucleic acids at the point-of-care. One approach relies on target-induced aggregation of gold nanoparticles functionalized with oligonucleotide sequences ...
• #### Gold Nanoparticle Delivery of Modified CpG Stimulates Macrophages and Inhibits Tumor Growth for Enhanced Immunotherapy ﻿

(2013-05-15)
Gold nanoparticle accumulation in immune cells has commonly been viewed as a side effect for cancer therapeutic delivery; however, this phenomenon can be utilized for developing gold nanoparticle mediated immunotherapy. ...
• #### Gold nanoshells: Optical properties and femtosecond electron dynamics ﻿

(1998)
The chemistry, optical properties, and femtosecond electron dynamics of gold nanoshells are described. The gold nanoshells consist of Au-coated Au$\sb2$S nanoparticles prepared via aqueous phase chemistry using HAuCl$\sb4$ ...
• #### Golden-Eye: A server-side location-sensing system for wireless LANs ﻿

(2004)
Determining the location of a wireless client is a key problem for location-aware systems and for security applications. Many recent studies have used Bayesian methods to determine location from wireless LAN signals, but ...
• #### GPU Accelerated Scalable Parallel Decoding of LDPC Codes ﻿

(2011-11-01)
This paper proposes a flexible low-density parity-check (LDPC) decoder which leverages graphic processor units (GPU) to provide high decoding throughput. LDPC codes are widely adopted by the new emerging standards for ...
• #### A GPU Implementation of a Real-Time MIMO Detector ﻿

(2009-10-01)
Multiple-input multiple-output (MIMO) is an existing technique that can significantly increase throughput of the system by employing multiple antennas at the transmitter and the receiver. Realizing maximum benefit from ...
• #### GPU-based Acceleration of Symbol Timng Recovery ﻿

(2012-12-20)
This paper presents a novel implementation of graphics processing unit (GPU) based symbol timing recovery using polyphase interpolators to detect symbol timing error. Symbol timing recovery is a compute intensive procedure ...
• #### A GPU-based preconditioned Newton-Krylov solver for flexible multibody dynamics ﻿

(2015)
This paper describes an approach to numerically approximate the time evolution of multibody systems with flexible (compliant) components. Its salient attribute is that at each time step, both the formulation of the system ...
• #### GR-FET application for high-frequency detection device ﻿

(2013)
A small forbidden gap matched to low-energy photons (meV) and a quasi-Dirac electron system are both definitive characteristics of bilayer graphene (GR) that has gained it considerable interest in realizing a broadly ...
• #### Gradient Estimation for Sensitivity Analysis and Adaptive Multiuse Interface Rejection in Code-division Multiple-access Systems ﻿

(1997-07-20)
In this paper, we consider a direct-sequence code-division multiple-access (DS-CDMA) system in the framework of a discrete-event dynamic system (DEDS) in order to optimize the system performance. Based on this formulation, ...
• #### Gradient estimation for stochastic optimization of optical code-division multiple-access systems. II. Adaptive detection ﻿

(1997-05-20)
For pt.I see ibid., vol.15, no.4, p.731-41 (1997). We develop infinitesimal perturbation analysis (IPA)-based stochastic gradient algorithms for deriving optimum detectors with the average probability of bit error being ...