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Displaying 29651 - 29675 of 74205

Investigations of a coherently driven semiconductor optical cavity QED system

September 30, 2008
Author(s)
Kartik A. Srinivasan, Christopher P. Michael, Raviv Perahia, Oskar Painter
Chip-based cavity QED devices consisting of a self-assembled InAs quantum dot (QD) coupled to a high quality factor GaAs microdisk cavity are coherently probed through the optical channel using a fiber taper waveguide. We highlight one particularly

Practical Challenges in Wireless Sensor Network Use in Buildings

September 30, 2008
Author(s)
William M. Healy, Won Suk Jang
While wireless sensor network technology has advanced in recent years, potential users of these systems in buildings still have concerns with their use. This report summarizes results of a literature survey and interactions with building industry

Technical Guide to Information Security Testing and Assessment

September 30, 2008
Author(s)
Murugiah P. Souppaya, Karen A. Scarfone
The purpose of this document is to assist organizations in planning and conducting technical information security tests and examinations, analyzing findings, and developing mitigation strategies. The guide provides practical recommendations for designing

The Nature of Deuterium Arrangements in YD3 and other Rare-Earth Trideuterides

September 30, 2008
Author(s)
Terrence J. Udovic, Qingzhen Huang, Antonio Santoro, John J. Rush
The efficacy of different structural models for describing the observed neutron-powder-diffraction (NPD) measurements of bulk polycrystalline YD3 as well as other hexagonal rare-earth (i.e., Nd, Tb, Dy, Ho, Er, and Tm) trideuteride powders has been

An Application Framework for IEEE 1588 Standard

September 29, 2008
Author(s)
Yuyin Song, Kang B. Lee
This paper introduces an application framework for the Institute of Electrical and Electronics Engineers (IEEE) 1588 standard. This application framework developed at the National Institute of Standards and Technology (NIST) consists of five layers

Effects of Specimen Geometry on Fatigue-Crack Growth Rates in Pipeline Steels

September 29, 2008
Author(s)
John M. Treinen, Philippe P. Darcis, Joseph D. McColskey, R. Smith, J. Merritt
In this study, the effect of specimen geometry on the fatigue crack growth rates (FCGR) in API X65 and X100 pipeline steels was explored using the middle tension and compact tension specimen geometries. It was found that the specimen type has little

The Iris Challenge Evaluation 2005

September 29, 2008
Author(s)
P J. Phillips, Kevin W. Bowyer, Patrick J. Flynn, Xiaomei Liu, W T. Scruggs
This paper describes the Iris Challenge Evaluation (ICE) 2005. The ICE 2005 contains a dataset of 2953 iris images from 132 subjects. The data is organized into two experiments: right and left eye. Iris recognition performance is presented for twelve

Using the BACnet Communications DLL v1.0

September 29, 2008
Author(s)
Michael A. Galler
The BACnet standard [1] defines a communication protocol for information exchange between components of a distributed building automation and control system. The BACnet Communications Dynamically Linked Library (DLL) enables researchers to implement

Surface-Enhanced Raman Spectroscopy via Gold Nanostars

September 28, 2008
Author(s)
Emren Nalbant-Esenturk, Angela R. Hight Walker
Anisotropic metallic nanoparticles have unique optical properties, which lend them to applications such as Surface Enhanced Raman Spectroscopy (SERS). Branched and star-shaped gold nanoparticles have been prepared in aqueous phase by seed-mediated growth

Fire Induced Thermal and Structural Response of the World Trade Center Towers

September 26, 2008
Author(s)
Kuldeep R. Prasad, Anthony P. Hamins, Therese P. McAllister, John L. Gross
Over the past several years, there has been a resurgence of interest in studying the response of building structures to fires. Typically, the thermal loading for structural analysis of a building subject to fire is obtained from a standard time-temperature

Quantifying Changes in the Fast Dynamics of Mixtures by Dielectric Spectroscopy

September 26, 2008
Author(s)
Tatiana Psurek, Christopher L. Soles, Kirt A. Page, Marcus T. Cicerone, Jack F. Douglas
The addition of a solvent or nanoparticles to a polymeric material can lead toappreciable changes in the rates of relaxation and reaction that can profoundly alter material properties and function. We introduce a general theoretical strategy for

Quantum Simulations of Classical Annealing Processes

September 26, 2008
Author(s)
Rolando Somma, S. Boixo, Howard Barnum, Emanuel Knill
We describe a quantum algorithm that solves combinatorial optimization problems by quantum simulation of a classical simulated annealing process. Our algorithm exploits quantum walks and the quantum Zeno effect induced by evolution randomization. It

Sensitivity of a Smoke Toxicity Test Method to Test Conditions

September 26, 2008
Author(s)
Nathan D. Marsh, Richard G. Gann, Jason D. Averill, Marc R. Nyden
Experiments have been conducted in the NFPA 269/ASTM E 1678 radiant apparatus to determine the sensitivity of toxic gas generation to atmospheric oxygen availability and to the conformation of the test specimen. CO and HCN generation can be dependent on

in-Adamantane, a Small Inside-Out Molecule

September 25, 2008
Author(s)
Karl K. Irikura
The hydrocarbon in-adamantane, an adamantane isomer in which one methine hydrogen atom is inside the cage, is predicted by ab initio calculations to be isolable at dry-ice temperature. It is 440 kJ/mol less stable than ordinary adamantane but has a barrier
Displaying 29651 - 29675 of 74205