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Displaying 24226 - 24250 of 73726

Standards and Biometrics

September 15, 2011
Author(s)
Bradford J. Wing
This paper addresses the importance of standards when implementing or using biometric systems. Standards have been developed to ensure that biometric systems can effectively and accurately meet users’ needs such as protecting data integrity, privacy, and

Testing Passive UHF Tag Performance Evolution

September 15, 2011
Author(s)
Daniel G. Kuester, David R. Novotny, Jeffrey R. Guerrieri, Zoya Popovic
Trends in tag development since the introduction of the ISO 18000-6C and EPC Global standards are investigated empirically with measurements of power harvesting and backscattering performance from 20 samples of passive tags across 860-960MHz. The

Chip-scale room-temperature atomic magnetometers for biomedical measurements

September 14, 2011
Author(s)
Svenja A. Knappe, Rahul R. Mhaskar, Jan Preusser, John E. Kitching, Lutz Trahms, Tillman H. Sander
We describe a portable 4-channel array of chip-scale atomic magnetometers in a flexible flying-lead configuration. These microfabricated, uncooled sensors with volumes below 1 cm 3 demonstrate sensitivities around 100 fT/Hz 1/2 and bandwidths of several

Mathematical Modeling of Wildland-Urban Interface Fires.

September 14, 2011
Author(s)
Randall J. McDermott, Ronald Rehm
This paper presents a simple model to demonstrate the effect on grass-fire propagation of the winds induced by structural fires in a Wildland-Urban Interface (WUI) setting. The model combines an empirical formula for wind-driven grass-fire spread and a

MEASUREMENTS OF EFFECTIVE DIFFUSION COEFFICIENT OF HELIUM AND HYDROGEN THROUGH GYPSUM

September 14, 2011
Author(s)
Jiann Yang, William M. Pitts, Marco Fernandez, Kuldeep Prasad
An experimental apparatus, which was based on the ¿-scale garage previously used for studying helium release and dispersion in our laboratory, was used to obtain effective diffusion coefficients of helium and hydrogen (released as forming gas for safety

Single-qubit-gate error below 10 -4 in a trapped ion

September 14, 2011
Author(s)
Kenton R. Brown, Andrew C. Wilson, Yves Colombe, Christian Ospeklaus, Adam M. Meier, Emanuel H. Knill, Dietrich G. Leibfried, David J. Wineland
In theory, quantum computers can solve certain problems much more efficiently than classical computers [1]. This has motivated experimental efforts to construct and verify devices that manipulate quantum bits (qubits) in a variety of physical systems [2]

test title

September 14, 2011
Author(s)
Siddharth NMN Khosla

Construction of a High Power OPO Laser system for Differential Absorption LIDAR

September 13, 2011
Author(s)
Kevin O. Douglass, Stephen E. Maxwell, David F. Plusquellic, Joseph T. Hodges, Roger D. van Zee, Daniel V. Samarov, James R. Whetstone
Our goal is to develop and characterize optical measurement technology to enable accurate quantification of greenhouse-gas emissions to meet the needs of industry and regulators. A 1064 nm pumped high energy optical parametric oscillator (OPO) operating

Contests in China Put Next-Gen Robot Technologies to the Test

September 13, 2011
Author(s)
Michael E. Newman, Stephen B. Balakirsky
This article describes the 2011 Robot Challenge that took place at the International Conference on Robotics and Automation in Shanghai, China. The quartet of contests-the Virtual Manufacturing Automation Competition (VMAC), the Mobile Microrobotics

An IEEE 1588 Performance Testing Dashboard for Power Industry Requirements

September 12, 2011
Author(s)
Julien M. Amelot, Ya-Shian Li-Baboud, Clement Vasseur, Jeffrey Fletcher, Dhananjay Anand, James Moyne
The numerous time synchronization performance requirements in the Smart Grid entails the need for a set of common metrics and test methods to verify the ability of the network system and its components to meet the power industry's accuracy, reliability and

Circuit-Aware Device Reliability Criteria Methodology

September 12, 2011
Author(s)
Jason T. Ryan, Lan Wei, Jason P. Campbell, Richard G. Southwick, Kin P. Cheung, Anthony Oates, John S. Suehle, Phillip Wong
Meeting reliability requirements is an increasingly more difficult challenge with each generation of CMOS technology. The disconnection between conventional one-size-fits-all reliability specifications and the wide range of circuit applications might be a

High Mobility Channel from the Prospective of Random Telegraph Noise

September 12, 2011
Author(s)
Kin P. Cheung, Jason P. Campbell
We experimentally verify for the first time that random telegraph noise (RTN) in ultra-scaled MOSFETs is related to the inversion charge density in the channel. We then examine the merit of high mobility channel devices from the RTN prospective. This

Interference Mitigation for Body Area Networks

September 12, 2011
Author(s)
Wen-Bin Yang, Kamran Sayrafian
Due to ultra-low power communication, BAN is most likely a victim system. Interference from other BANs or other coexisting wireless communication systems may be significant. Power control is usually inefficient and may even cause more interference in an

Structure of lithium peroxide

September 12, 2011
Author(s)
Eric L. Shirley, Maria K. Chan, Naba Karan, Mahalingam Balasubramanian, Yang Ren, Jeffrey P. Greeley, Timothy T. Fister
The reliable identification of lithium oxides species, especially lithium peroxide (Li2O2), is of vital importance to the study of Li-air batteries. Previous x-ray diffraction studies of Li2O2 resulted in the proposal of two disparate structures by Féher

Temperature Compensated (Net) Volume Direct from Mass Flow Meters

September 12, 2011
Author(s)
Marc A. Buttler
Temperature compensated (net) volume can currently be measured by mass flow meters using one of two methods: 1. Gross volume flow is measured by the device. Temperature of the fluid is measured. Net volume is then computed by applying traditional
Displaying 24226 - 24250 of 73726
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