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Displaying 20826 - 20850 of 73747
Smokeview is a software tool designed to visualize numerical calculations generated by fire models such as the Fire Dynamics Simulator (FDS), a computational fluid dynamics (CFD) model of fire-driven fluid flow or the Consolidated Fire and Smokeview
The SI unit of mass, the kilogram, is the only remaining artifact definition in the seven fundamental quantities of the SI system. It will be redefined in terms of the Planck constant as soon as certain experimental conditions recommended by the
Gheorghe Stan, Sean King, Jeff Bielefeld, Gaunghai Xu, William Lanford, Yusuke Matsuda, Reinhold Dauskardt, Jonathan F. Stebbins, Donald Hondongwa, Lauren Olasov, Brian Daly, Ming Liu, Dhanadeep Dutta, David W. Gidley
As demand for lower power and higher performance nano-electronic products increases, the semiconductor industry must adopt insulating materials with progressively lower dielectric constants (i.e. low-k) in order to minimize capacitive related power losses
We discuss a high-speed quantum key distribution (QKD) system with the protocol infrastructure implemented on a single printed circuited board that can operate with various photonic subsystems. We achieve sub-nanosecond resolution with serial data
The NIST Open Keyword Search 2013 (OpenKWS13) Evaluation Workshop was the culmination of the first in a series of community-wide evaluations to test research systems that search for keywords in audio of a "surprise" language. OpenKWS13 made use of the
In order to revise the AGA-8 documentation for publication in 2014, better knowledge of the 0.1% uncertainty level in the equation of state is needed. A 0.1% uncertainty level has been identified by an AGA-8 task group as the acceptable limit of error for
There are now a series of published works related to Differential Fault Attack (DFA) on the Grain family, but most of them require quite a large number (hundreds) of faults (around $n \ln n$, where $n = 80$ for Grain v1 and $n = 128$ for Grain-128, Grain
This ITL Bulletin summarizes a new ITL publication, NIST Special Publication 800- 83 Revision 1,Guide to Malware Incident Prevention and Handling for Desktops and Laptops,which gives receommendations for organizations to improve their malware incident
Carlos M. Hangarter, Ratan K. Debnath, Jong Y. Ha, M. E. Sahiner, C. J. Reehil, W. A. Manners, Daniel Josell
This paper details the use of scanning photocurrent microscopy to examine localized current collection efficiency of thin film photovoltaic devices with in-plane patterning at a submicrometer length scale. The devices are based upon two interdigitated comb
Stacy L. Pesek, Xianyu Li, Boualem Hammouda, Kunlun Hong, Rafael Verduzco
Bottlebrush polymers are highly branched polymer macromolecules with potential applications for anti-fouling coatings, rheological modifiers, and drug delivery systems. However, the solution conformation of bottlebrush polymers has been studied in only a
The objective of this work was to identify compositional changes that could improve the thermal stability of the kerosene rocket propellant known as RP-2. For this study, we tested the effect of different types of alkanes on the thermal stability of RP-2
The objective of this work is to identify compositional changes that could improve the thermal stability of RP-2. For this study, we tested the effect of alkane concentration on the thermal stability of the RP-2 sample known as 08POSF5433. The proportion
Shmuel Barzilai, Francesca M. Tavazza, Lyle E. Levine
In this work we investigated the effects of an internal O2 impurity on the conductance of elongated gold and silver nanowires (NWs) using density functional theory (DFT) calculations. We found that the O2 interacts with these metallic NWs very differently
A. J. Grutter, H. Yang, Brian Kirby, M. R. Fitzsimmons, J. A. Aguiar, N. D. Browning, C. A. Jenkins, E. Arenholz, V. V. Mehta, U. S. Alaan, Y. Suzuki
We observe interfacial ferromagnetism in superlattices of the paramagnetic metal LaNiO 3 and the antiferromagnetic insulator CaMnO 3. The magnetic behavior can be explained in terms of an interfacial double exchange mechanism in which itinerant electrons
As sustainability becomes an important issue nowadays, disassembly becomes one of the key processes to turn out-of-service products into new or rebuilt products to save energy and materials. A disassembly process includes many subprocesses, such as
Here we report on the testing and measurements of an intra-volume ad hoc array concept suitable for public-safety communications in buildings. The term ad hoc array refers to the use of several small communication devices that are randomly placed in an
The Department of Defense and the National Institute of Standards and Technology held a Model Based Enterprise Summit and Technical Data Package (TDP) Workshop December 15-17, 2009 in Gaithersburg, MD. The TDP workshop gathered subject matter experts to
Robert L. Amaro, Neha N. Rustagi, Andrew J. Slifka, Elizabeth S. Drexler, Kip Findley
Hydrogen is likely to play a key role (worldwide) in a future clean energy economy. Although pipeline transmission appears to be the most economical means to transport gaseous hydrogen, fundamental understanding of the deleterious effects of hydrogen on
Short tandem repeats (STRs) are regions of tandemly repeated DNA segments found throughout the human genome that vary in length (through insertion, deletion, or mutation) with a core repeated DNA sequence. Forensic laboratories commonly use tetranucleotide
Loren F. Goodrich, Najib Cheggour, Theodore C. Stauffer, James Filla, Xifeng Lu
We review variable-temperature, transport critical-current (Ic) measurements made on commercial superconductors over a range of critical currents from less than 0.1 A to about 1 kA. We have developed & used a number of systems to make these measurements
Michael D. Frenkel, Sergey P. Verevkin, V N. Emel'yanenko, Robert D. Chirico, Vladimir Diky, Chris D. Muzny
A new group-contribution approach involving systematic corrections for 1,4-non-bonded carbon-carbon and carbon-oxygen interactions has been proposed. Limits of the applicability of the method, associated with the highly branched structures, were
This report provides results and recommendations from the validation testing for the different source configurations and radiation fields produced by special nuclear materials (SNMs) and depleted uranium (DU) listed within the Technical Capability Standard
This publication contains Good Measurement Procedures (GMP), Good Laboratory Procedures (GLP), and Standard Operating Procedures (SOP) for use in calibration laboratories performing volumetric calibrations. This edition is updated from the 2012 version