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Displaying 10876 - 10900 of 74178

Enhanced Transmission Algorithm for Dynamic Device-to-Device Direct Discovery

January 12, 2018
Author(s)
Aziza Ben Mosbah, David W. Griffith, Richard A. Rouil
In order to support the increasing demand for capacity in cellular networks, Long Term Evolution (LTE) introduced Proximity Services (ProSe) enabling Device-to-Device (D2D) communications, defining several services to support such networks. We are

Controlled Potential Electrooxidation of Genomic DNA

January 11, 2018
Author(s)
Vytautas Reipa, Donald H. Atha, Sanem Hosbas Coskun, Christopher M. Sims, Bryant C. Nelson
Exposure of mammalian cells to oxidative stress can result in DNA damage that adversely affects many cell processes. We used bulk electrolysis in an electrochemical system and gas chromatographic mass spectrometric analysis (GC/MS/MS) to control and

H 2 Adsorption on Cu(I)-SSZ-13

January 11, 2018
Author(s)
Bahar Ipek, Rachel A. Pollock, Craig Brown, Deniz Uner, Raul F. Lobo
We report H 2 adsorption capacities reaching 0.05 mass% (wt. %) at 303 K and 1 atm H 2 pressure on solid-state CuCl-exchanged [Al]-SSZ-13 and [B]-SSZ zeolites. Differential heat of H 2 adsorption is found in the range between 16 KJ mol H 2 -1 and 48 KJ mol

Total NIST Interactions FY 2010-FY2014

January 11, 2018
Author(s)
Isaac S. Patterson, Nicole K. Gingrich
This analysis is an attempt to quantify the number and type of interactions between NIST and the U.S. economy from fiscal year 2010 through fiscal year 2014. These interactions of diverse types include those between NIST and other government entities

Nanostructured lipid-based films for substrate-mediated applications in biotechnology

January 10, 2018
Author(s)
Minjee Kang, Mohit Tuteja, Andrea Centrone, Daniel Topgaard, Cecilia Leal
Amphiphilic in nature, lipids spontaneously self-assemble into a range of nanostructures in the presence of water. Among lipid self-assembled structures, liposomes and supported lipid bilayers have long held scientific interest for their main applications

NIST Micronutrients Measurement Quality Assurance Program Winter and Summer 2017 Comparability Studies: Results for Round Robins LXXXI and LXXXII Fat-Soluble Vitamins and Carotenoids in Human Serum

January 10, 2018
Author(s)
Jeanice M. Brown Thomas, David L. Duewer
The National Institute of Standards and Technology coordinates the Micronutrients Measurement Quality Assurance Program (MMQAP) for laboratories that measure fat-soluble vitamins and carotenoids in human serum and plasma. This report describes the design

Recommendation for the Entropy Sources Used for Random Bit Generation

January 10, 2018
Author(s)
Meltem Sonmez Turan, Elaine B. Barker, John M. Kelsey, Kerry A. McKay, Mary L. Baish, Mike Boyle
This Recommendation specifies the design principles and requirements for the entropy sources used by Random Bit Generators, and the tests for the validation of entropy sources. These entropy sources are intended to be combined with Deterministic Random Bit

A Review of Public Response to Short Message Alerts under Imminent Threat

January 9, 2018
Author(s)
Erica D. Kuligowski, Jessie Doermann
The National Institute of Standards and Technology (NIST)’s Technical Investigation of the 2011 Joplin, MO tornado identified that no widely accepted standards exist for emergency communications in tornado events and more specifically, policies involving

A Critical Appraisal of Community Resilience Studies: Progress and Challenges

January 8, 2018
Author(s)
Maria Koliou, John W. van de Lindt, Bruce Ellingwood, Maria Dillard, Harvey Cutler, Therese P. McAllister
Community resilience, which has been defined as the ability to prepare for and recover from disruptive hazard events, has been addressed across multiple disciplines including environmental sciences, engineering, sociology, psychology and economics

AC Signal Characterization for Optimization of a CMOS Single Electron Pump

January 8, 2018
Author(s)
Roy E. Murray, Justin K. Perron, Michael D. Stewart, Neil M. Zimmerman
Pumping single electrons at a set rate is being widely pursued as an electrical current standard. Much work has been done on pumping using a single AC signal, but using multiple coordinated AC signals may help lower error rates. Whether pumping with one or

Quantification of DNA/SWCNT Solvation Differences by Aqueous Two Phase Separation

January 8, 2018
Author(s)
Ming Zheng, Yoona Yang, Akshaya Shankar, Thibault Aryaksama, Anand Jagota
Single wall carbon nanotubes (SWCNTs) coated with single-stranded DNA can be effectively separated into various chiralities using an aqueous two phase (ATP) system. Partitioning is driven by small differences in the dissolution characteristics of the

Quantum for Pressure

January 5, 2018
Author(s)
Jay H. Hendricks, Patrick F. Egan, Jacob E. Ricker, Jack A. Stone Jr., Kevin O. Douglass, Gregory F. Strouse
A team of NIST scientists is working to fundamentally change the way that the unit of pressure is realized and disseminated, an effort that will lead to the elimination of mercury barometer pressure standards.

Bad security metrics: the problem and its solution

January 4, 2018
Author(s)
David W. Flater
It is generally acknowledged that few security metrics have the level of predictive validity that their uses require, but neither the nature of the problem nor the steps needed to avoid it have been fully characterized. This article examines both questions

Noncentrosymmetric Superconductor BeAu

January 4, 2018
Author(s)
A. Amon, E. Svanidze, R. Cardoso-Gil, M. N. Wilson, H. Rosner, M. Bobnar, W. Schnelle, Jeffrey W. Lynn, R. Gumeniuk, C. Hennig, G. M. Luke, H. Borrmann, A. Leithe-Jasper, Yu Grin
In noncentrosymmetric superconductors mixed spin-singlet and spin-triplet pairing can occur. In this work, physical properties of the noncentrosymmetric superconductor, BeAu, were investigated. It was established that BeAu undergoes a structural phase
Displaying 10876 - 10900 of 74178