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Search Publications

NIST Authors in Bold

Displaying 19551 - 19575 of 73832

Toxicity of carboxylated carbon nanotubes in endothelial cells is attenuated by stimulation of the autophagic flux associated with the release of nanomaterial in autophagic vesicles

July 1, 2014
Author(s)
Martina Orecna, Silvia De Paoli Lacerda, Olga Janouskova, Tseday Tegegn, Marcela Filapova, John E. Bonevich, Jan Simak
Here, we present a new method for the pharmacological modulation of the vascular toxicity of carbon nanotubes. We report that carboxylated multiwalled carbon nanotubes (MWCNTs) induce autophagosome accumulation in cultured human umbilical vein endothelial

Uncertainty in Bogue-Calculated Phase Composition of Hydraulic Cements

July 1, 2014
Author(s)
Paul E. Stutzman
The Bogue calculations of cement composition are used for manufacturing process control and cement classification. While it is commonly understood that the Bogue calculations are estimates with potential intrinsic biases, the magnitudes of such biases are

Using Network Tainting to Bound the Scope of Network Ingress Attacks

July 1, 2014
Author(s)
Peter M. Mell, Richard Harang
This research describes a novel security metric, network taint, which is related to software taint analysis. We use it here to bound the possible malicious influence of a known compromised node through monitoring and evaluating network flows. The result is

Using Single Particle ICP-MS as a Tool for Understanding Metallic Nanoparticle Transformation during Nanotoxicity Assays

July 1, 2014
Author(s)
Monique E. Johnson, Shannon Hanna, Antonio R. Montoro Bustos, Bryant C. Nelson, Elijah J. Petersen, Lee L. Yu
The advent of engineered nanoparticles (ENPs) and their increased use has remarkably improved the performance of basic materials and consumer products, but has also increased the potential for ENP release into the environment. Technical procedures, more

A Tool for Evaluating Fault Detection and Diagnostic Methods for Fan Coil Units

June 29, 2014
Author(s)
Shokouh Pourarian, Jin Wen, Daniel Veronica, Xiaohui Zhou, Ran Liu
Dynamic simulation software "tools" are needed for the research and development of improved methods for automatic control and automated fault detection and diagnosis of heating ventilation and air conditioning (HVAC) systems. These tools must generate data

DNA-Controlled Carbon Nanotube Partition in Polymer Aqueous Two-Phase Systems

June 28, 2014
Author(s)
Geyou Ao, Constantine Y. Khripin, Ming Zheng
Sorting single-wall carbon nanotubes (SWCNTs) of different chiralities is both scientifically interesting and technologically important. Recent studies have shown that polymer aqueous two-phase extraction is a very effective way to achieve nanotube sorting

Effects of Dose Fractionation on the Response of Alanine Dosimetry

June 28, 2014
Author(s)
Marc F. Desrosiers, John Logar, Brad Lundahl
Alanine dosimetry is well established as a transfer standard and is becoming more prevalently used as a routine dosimetry system for radiation processing. Many routine measurement applications in radiation processing involve absorbed dose measurements

Permanents, alpha-permanents and Sinkhorn balancing

June 28, 2014
Author(s)
F Sullivan, Isabel M. Beichl
The method of Sinkhorn balancing that starts with a non-negative square matrix and iterates to produce a related doubly stochastic matrix has been used with some success to estimate the values of the permanent in some cases of physical interest, However it

Persistence-based Structural Recognition

June 28, 2014
Author(s)
Chunyuan Li
This paper presents a framework for object recognition using topological persistence. In particular, we show that the so-called persistence diagrams built from functions defined on the objects can serve as compact and informative descriptors for images and

Community Resilience: The Role of the Built Environment

June 27, 2014
Author(s)
Therese P. McAllister
Buildings and infrastructure systems play a key role in communities by supporting social needs and institutions, including housing, business, government, industry, and other vital services. The concept of community resilience addresses the way that

Multiple High-Temperature Transitions Driven by Dynamical Structures in NaI

June 27, 2014
Author(s)
M. E. Manley, J.R. Jeffries, H. Lee, Nicholas Butch, D. L. Abernathy
Multiple, consecutive high-temperature transitions in NaI involving dynamical order and/or localization in the energy-momentum spectrum but not in the average crystal structure are revealed by lattice dynamics, x-ray lattice spacing, and heat capacity

Preserving Privacy More Than Reading a Message

June 27, 2014
Author(s)
Susanne M. Furman, Mary F. Theofanos
Social media has become a mainstream activity where people share all kinds of personal and intimate details about their lives. These social networking sites (SNS) allow users to conveniently authenticate to the third party website by using their SNS

Quasiparticle scattering from topological crystalline insulator SnTe (001) surface states

June 27, 2014
Author(s)
Duming Zhang, Hongwoo H. Baek, Jeonghoon Ha, Tong Zhang, Jonathan E. Wyrick, Albert Davydov, Young Kuk, Joseph A. Stroscio
Recently, the topological classification of electronic states has been extended to a new class of matter known as topological crystalline insulators. Similar to topological insulators, topological crystalline insulators also have spin-momentum locked

A classical channel model for gravitational decoherence

June 26, 2014
Author(s)
Jacob M. Taylor, Dvir Kafri, G J. Milburn
We show that, by treating the gravitational interaction between two mechanical resonators as a classical measurement channel, a gravitational decoherence model results that is equivalent to a model first proposed by Diosi. The resulting decoherence model

Interface Engineering to Control Magnetic Field Effects of Organic-Based Devices by Using a Molecular Self-Assembled Monolayer

June 26, 2014
Author(s)
Hyuk-Jae Jang, Sujitra J. Pookpanratana, Alyssa N. Brigeman, Regis J. Kline, James I. Basham, David J. Gundlach, Christina A. Hacker, Oleg A. Kirillov, Oana Jurchescu, Curt A. Richter
Organic semiconductors hold immense promise for the development of a wide range of innovative devices with their excellent electronic and manufacturing characteristics. Of particular interest are non-magnetic organic semiconductors that show unusual

Synthesis, transport properties, and electronic structure of Cu2CdSnTe4

June 26, 2014
Author(s)
Yongkwan Dong, Artem R. Khabibullin, Kaya Wei, Zhen-Hua Ge, Joshua Martin, James Salvador, Lilia Woods, George S. Nolas
A new stannite phase was synthesized and its temperature dependent transport properties were investigated. It is found that the electrical resistivity increases with increasing temperature. Hall and Seebeck coefficient measurements indicate Cu2CdSnTe4

A nonlinearity in permanent-magnet systems used in watt balances

June 25, 2014
Author(s)
Shisong Li, Stephan Schlamminger, Jon R. Pratt
In watt balances that employ permanent magnet systems to generate the magnetic flux the effects of the weighing current on the magnet systems can generate a systematic bias that can lead to an error in the result if not accounted for. In this article a

Interrelationship between Number of Mobile Protons, Diffusion Coefficient, and AC Conductivity in Superprotonic Conductors, CsHSO 4 and Rb 3 H(SeO 4 ) 2

June 25, 2014
Author(s)
Kazuya Kamazawa, Masashi Harada, Toru Araki, Yasumitsu Matsuo, Madhu Sudan Tyagi, Jun Sugiyama
Using quasielastic neutron scattering (QENS), we investigated proton dynamics for two superprotonic conductors, CsHSO 4 and Rb 2H(SeO 4) 2. In the superprotonic conducting phase, two translational proton motions were observed for the both compounds. Making
Displaying 19551 - 19575 of 73832
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