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Displaying 45826 - 45850 of 143780

Guide to Industrial Control Systems (ICS) Security - Supervisory Control and Data Acquisition (SCADA) systems, Distributed Control Systems (DCS), and other control system configurations such as Programmable Logic Controllers (PLC)

June 7, 2011
Author(s)
Keith A. Stouffer, Joseph A. Falco, Karen A. Scarfone
NIST Special Publication (SP) 800-82, Guide to Industrial Control Systems (ICS) Security, provides guidance on how to secure Industrial Control Systems (ICS), including Supervisory Control and Data Acquisition (SCADA) systems, Distributed Control Systems

Negative Regulation of STAT3-mediated Cellular Respiration by SirT1

June 7, 2011
Author(s)
Lili Wang, Hua-Jun He, Michel Bernier, Rajib K. Paul, Alejandro Martin-Montalvo, Morten Scheibye-Knudsen, Shaoming Song, Sean M. Armour, Vilhelm A. Bohr, Yaping Zong, David A. Sinclair, Rafael de Cabo
In mammals, the transcriptional activity of signal transducer and activator of transcription 3 (STAT3) is regulated by the deacetylase SirT1. However, whether the newly described non-genomic actions of STAT3 toward mitochondrial oxidative phosphorylation

Physicochemical characterization and in vitro hemolysis evaluation of silver nanoparticles

June 7, 2011
Author(s)
Vytautas Reipa, Jonghoon Choi, Nam S. Wang, Victoria M. Hitchins, Peter L. Goering, Robert Malinauskas
In anticipation of the increased use of various forms of silver as an antimicrobial agent in medical devices, the objective of this study was to evaluate the in vitro hemolytic potential of silver nanoparticles in dilute human blood, and to relate particle

An Equation of State for the Thermodynamic Properties of Dimethyl Ether

June 6, 2011
Author(s)
Yong Zhou, Jiangtao Wu, Eric Lemmon
A thermodynamic property formulation for dimethyl ether has been developed based on a selection of experimental thermodynamic property data. The formulation includes a fundamental equation, a vapor pressure equation, and saturated density equations for

Combinatorial and High-throughput Screening of Biomaterials

June 6, 2011
Author(s)
Carl Simon Jr., Sheng Lin-Gibson
The review describes recent advances in utilizing combinatorial and high-throughput methods to better understand cell-material interactions, in terms of cell toxicity, adhesion, morphology, migration, proliferation and differentiation, particularly

Five Grand Challenges in Pedestrian and Evacuation Dynamics

June 6, 2011
Author(s)
Jason D. Averill
This paper identifies five grand challenges in the multidisciplinary field of pedestrian and evacuation dynamics (PED). In order to maximize the ef-fectiveness of limited resources, the PED community would benefit greatly from a prioritized, consensus

Method for determining the irreversible strain limit of Nb 3 Sn wires

June 6, 2011
Author(s)
Loren F. Goodrich, Najib Cheggour, Xifeng Lu, Jolene D. Splett, Theodore C. Stauffer, Bernard J. Filla
We have defined a rigorous and reliable method for determining the irreversible strain limit of Nb 3Sn wires. The critical current (I c) is measured as a function of applied longitudinal strain (ε), I c(ε), at one magnetic field and a temperature of 4.0 K

Modeling and DIC Measurements of Dynamic Compression Tests of a Soft Tissue Simulant

June 6, 2011
Author(s)
Steven P. Mates, Aaron M. Forster, R Rhorer, Amit Bagchi, Richard Everett, Kirth Simmonds
Stereoscopic digital image correlation (DIC) is used to measure the shape evolution of a soft, transparent thermoplastic material subject to a high strain rate compression test performed using a Kolsky bar. Rather than using the usual Kolsky bar wave

Spectroscopic charge pumping investigation of the amphoteric nature of Si/SiO2 interface states

June 6, 2011
Author(s)
Jason T. Ryan, Liangchun (. Yu, Jae Han, Joseph J. Kopanski, Kin P. Cheung, Fei Zhang, Chen Wang, Jason P. Campbell, John S. Suehle
The amphoteric nature of Si/SiO2 interface states in submicron sized metal-oxide-silicon-field-effect-transistors is observed using an enhanced spectroscopic charge pumping method. The method’s simplicity and high sensitivity makes it a powerful tool for
Displaying 45826 - 45850 of 143780
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