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Displaying 37726 - 37750 of 143780

On the Existence of Face Quality Measures

September 30, 2013
Author(s)
P J. Phillips, J. R. Beveridge, David Bolme, Bruce A. Draper, Geof H. Givens, Yui M. Lui, Su L. Cheng, Mohammad N. Teli, Hao Zhang
We address the problem of the existence of quality measures for face recognition. We introduce the concept of an oracle quality measure, which is an optimal quality measure. We approximate oracle quality measures by greedy pruned ordering (GPO). GPO

Propagation of Facial Identities in a Social Network

September 30, 2013
Author(s)
P J. Phillips, Tao Wu, Rama Chellappa
We address the problem of automated face recognition on a social network using a loopy belief propagation frame- work. The proposed approach propagates the identities of faces in photos across social graphs. We characterize performance in terms of

Surface science for improved ion traps

September 30, 2013
Author(s)
David P. Pappas, Dustin Hite, Andrew C. Wilson, David T. Allcock, David J. Wineland, Dietrich Leibfried, Yves Colombe
Trapped ions are sensitive to electric-field noise from trap-electrode surfaces. This noise has been an obstacle to progress in trapped-ion quantum information processing (QIP) experiments for more than a decade. It causes motional heating of the ions, and

Swelling of Ultrathin Molecular Layer-by-Layer Polyamide Water Desalination Membranes

September 30, 2013
Author(s)
Edwin P. Chan, Allison P. Young, Jung-Hyun Lee, Christopher M. Stafford
The water vapor swelling behavior of ultrathin crosslinked aromatic polyamide films, synthesized via molecular layer-by-layer deposition, is characterized via specular X-ray reflectivity. The results show that these films expand only along the thickness

Unexpected effect of thermal storage observed on SiC power DMOSFET

September 29, 2013
Author(s)
Zakariae Chbili, Pragya R. Shrestha, Jason P. Campbell, John S. Suehle, Kin P. Cheung, D. E. Ioannou
In this paper we report an unexpected improvement in the SiC DMOSFET transistor characteristics after a long temperature treatment at 150 C. The evolution of the device characteristics during a TDDB stress is compared to that after an elevated temperature

Realization of high thermoelectric performance in p-type unfilled ternary skutterudites FeSb2+xTe1-x via band structure modification and significant electron-phonon scattering

September 28, 2013
Author(s)
Gangjian Tan, Xianli Su, Wei Liu, Hang Chi, Yonggao Yan, Xinfeng Tang, Ctirad Uher, Winnie Wong-Ng
FeSb2Te, a ternary system derived from binary CoSb3, displays anomalous electrical and thermal transport properties because of the considerable modification in band structure induced by Fe and the significant mixed valence states (namely Fe2+ and Fe3+)

Automated Control of National Time Standards via the SIM Time Scale

September 27, 2013
Author(s)
Michael A. Lombardi, J. Mauricio Lopez-Romero, Nelida Diaz-Munoz
This paper describes a frequency and time control system developed by the Sistema Interamericano de Metrologia (SIM). Due to limited resources, some SIM national metrology institutes maintain a low-cost rubidium clock as their national time standard

Influence of Exposure Conditions on the Efficiency of Internal Curing in Concrete

September 27, 2013
Author(s)
Michael Golias, Dale P. Bentz, Jason Weiss
Internal curing uses pre-wetted fine lightweight aggregate (LWA) to supply cementitious systems with water. This increases the hydration of cement and reduces the influence of self-desiccation resulting in concrete with increased compressive strength

INTER-BAN INTERFERENCE EVALUATION & MITIGATION: A PRELIMINARY STUDY

September 27, 2013
Author(s)
Kamran Sayrafian, Martina Barbi, Mehdi Alasti, Roberto Verdone
A Body Area Network (BAN) is a radio standard for wireless connectivity of wearable and implantable sensor nodes that are located inside or in proximity to the human body. Many applications of BANs (e.g. physiological monitoring) require reliable
Displaying 37726 - 37750 of 143780
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