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Displaying 23751 - 23775 of 73727

Laser cooling and readout of an LC resonator

December 27, 2011
Author(s)
Jacob M. Taylor, Anders Sorensen, C. M. Marcus, E.S. Polzik
We explore a method for laser cooling and optical detection of excitations in a LC electrical circuit. Our approach uses a nanomechanical oscillator as a transducer between optical and electronic excitations. An experimentally feasible system with the

Thermodynamic Properties of Dimethyl Carbonate

December 27, 2011
Author(s)
Yong Zhou, Jiangtao Wu, Eric Lemmon
A thermodynamic property formulation for dimethyl carbonate has been developed with the use of available experimental thermodynamic property data. The equation of state was developed with multi-property fitting methods involving single-phase pressure

Vulnerability Hierarchies in Access Control Configurations

December 27, 2011
Author(s)
David R. Kuhn
This paper applies methods for analyzing fault hierarchies to the analysis of relationships among vulnerabilities in misconfigured access control rule structures. Hierarchies have been discovered previously for faults in arbitrary logic formulae, such that

Recommendation for Existing Application-Specific Key Derivation Functions

December 23, 2011
Author(s)
Quynh H. Dang
Cryptographic keys are vital to the security of internet security applications and protocols. Many widely-used internet security protocols have their own application-specific Key Derivation Functions (KDFs) that are used to generate the cryptographic keys

Asymptotically Optimal Confidences for Rejecting Local Realism

December 22, 2011
Author(s)
Yanbao Zhang, Scott Glancy, Emanuel Knill
Reliable experimental demonstrations of violations of local realism are highly desirable for fundamental tests of Quantum Mechanics. Such violations can be quantified in terms of a confidence for rejecting local realism. We propose a method for computing

Copper oxide nanoparticle mediated DNA damage in terrestrial plant models

December 22, 2011
Author(s)
Bryant C. Nelson, Donald H. Atha, Elijah J. Petersen, Huanhua Wang, Danielle Cleveland, Richard D. Holbrook, Pawel Jaruga, M Miral Dizdar, Baoshan Xing
Engineered nanoparticles, due to their unique electrical, mechanical and catalytic properties, are presently found in many commercial products and will be intentionally or inadvertently released at increasing concentrations into the natural environment

Database-Assisted Design for Wind: Multiple Points-in-Time Approach

December 22, 2011
Author(s)
Dong Hun Yeo
One of the problems encountered in the estimation of wind effects on high-rise structures is the development of combinations of such effects as translational responses and the rotational response to wind, and/or forces and moments at various cross sections

Long-term Stability of the NIST Conical Reference Transducer

December 22, 2011
Author(s)
Steven E. Fick, Thomas M. Proctor
The National Institute of Standards and Technology (NIST) Conical Reference Transducer (CRT) is designed for purposes which require frequency response characteristics much more uniform than those attainable with ultrasonic transducers conventionally used

M-ary state phase-shift keying discrimination below the homodyne limit

December 22, 2011
Author(s)
Francisco E. Becerra Chavez, Jingyun Fan, Gerald Baumgartner, Sergey V. Polyakov, Julius Goldhar, Jonathan Kosloski, Alan L. Migdall
We investigate a strategy for M-ary discrimination of nonorthogonal phase states with error rates below the homodyne limit. This strategy uses feed forward to update a reference field and Signal nulling for the state discrimination. We experimentally

Mechanisms of Cement Hydration

December 22, 2011
Author(s)
Jeffrey W. Bullard, Hamlin M. Jennings, Richard A. Livingston, Andre Nonat, George W. Scherer, Jeffrey S. Schweitzer, Karen L. Scrivener, Jeffrey J. Thomas
Several detailed reviews have been written about the kinetics of cement hydration . In this review, focus is placed on a number of recent advances in understanding the principal mechanisms that govern the rate of hydration and microstructure development

Modeling and Simulation of Cement Hydration Kinetics and Microstructure Development

December 22, 2011
Author(s)
Jeffrey Thomas, Joseph J. Biernacki, Jeffrey W. Bullard, Shashank Bishnoi, Jorge S. Dolado, George W. Scherer, Andreas Luttge
This review endeavors to summarize the past 40 years or so of progress towards the development of mathematical models for understanding and predicting cement hydration behavior. A complete and accurate model of hydration would enable materials engineers

Chern Numbers Hiding in Time-of-Flight Images

December 21, 2011
Author(s)
Ian B. Spielman, Erhai Zhao, Noah Bray-Ali, Carl J. Williams, Indubala Satija
We present a novel technique for detecting topological invariants -- Chern numbers -- from time-of-flight images of ultra-cold neutral atoms. The Chern number of fermions in a lattice potential depends on magnetic field (for neutral atoms, generated by an

Nanometrology Using Through-Focus Scanning Optical Microscopy Method

December 21, 2011
Author(s)
Ravikiran Attota, Richard M. Silver
We present an initial review of a novel through-focus scanning optical microscopy (TSOM) imaging method that produces nanometer dimensional measurement sensitivity using a conventional bright-field optical microscope. In the TSOM method a target is scanned

New Concepts for Building Vocabulary for Cell Image Ontologies

December 21, 2011
Author(s)
Anne L. Plant, John T. Elliott, Talapady N. Bhat
Background: We present an approach to cell image databasing that is compatible with searching across a global federation of independent image databases. The variety of biological experiments and data that practitioners would like to access and share is

Electrolyte stability determines scaling limits for solid-state 3D Li-ion batteries

December 20, 2011
Author(s)
Dmitry A. Ruzmetov, Vladimir P. Oleshko, Paul M. Haney, Henri J. Lezec, K Karki, K Baloch, Amit K. Agrawal, Albert Davydov, Sergiy Krylyuk, Y Liu, JY Huang, Mihaela M. Tanase, John Cumings, Albert A. Talin
Rechargeable, all-solid state Li-ion batteries (LIBs) with high specific capacity and small footprint are highly desirable to power an emerging class of miniature, autonomous microsystems that operate without a hardwire for power or communications. A

Counting the Leaves of Trees

December 19, 2011
Author(s)
Brian D. Cloteaux, Luis A. Valentin
A number of important combinatorial counting problems can be reformulated into the problem of counting the number of leaf nodes on a tree. Since the basic leaf-counting problem is #P-complete, there is strong evidence that no polynomial time algorithm

DHS/NIST Workshop on Homeland Security Modeling & Simulation, June 14-15, 2011

December 19, 2011
Author(s)
Charles R. McLean, Yung-Tsun Lee, Sanjay Jain, Charles W. Hutchings
The U. S. Department of Homeland Security (DHS) Science and Technology Directorate and the National Institute of Standards and Technology (NIST) Engineering Laboratory (EL) jointly hosted a Homeland Security Modeling & Simulation (M&S) Workshop on 14 & 15

Feedback Control of Optically Trapped Particles

December 17, 2011
Author(s)
Jason J. Gorman, Arvind K. Balijepalli, Thomas W. LeBrun
Optical trapping is a method for manipulating micro- and nanoscale particles that is widely used in biophysics and colloid science, among other areas. This method uses optical forces to confine the position of a particle to a localized region, which is
Displaying 23751 - 23775 of 73727
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