U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Search Publications

NIST Authors in Bold

Displaying 15876 - 15900 of 73893

Re-entrance of Poly(N,N-diethylacrylamide) in D 2 O/d-Ethanol Mixture at 27degC

July 26, 2016
Author(s)
Di Jia, Taisen Zuo, Sararh Rogers, He Cheng, Boualem Hammouda, Charles C. Han
The re-entrance of poly(N,N-diethyl acrylamide) (PDEA)in D 2O/d-ethanol mixtures (i.e., the coil-to-globule-to-coil transition) has been observed at 27 °C by small-angle neutron scattering (SANS). PDEA has a lower critical solution temperature (LCST) phase

Thermal Exposure Sensor for Fire Fighters - full-Scale Performance Experiments

July 26, 2016
Author(s)
Nelson P. Bryner, Atul Deshmukh, John Casali, Jeff Lancaster, Roy A. McLane
During structural fire fighting suppression operations, fire fighters wear protective gear to insulate them from the high temperature environment including hot combustion gases, burning surfaces, and thermal radiation. Current turnout gear insulates the

Thermal Exposure Sensor for Fire Fighters - Laboratory-Scale Performance Experiments

July 26, 2016
Author(s)
Nelson P. Bryner, Atul Deshmukh, John Casali, Jeff Lancaster, Roy A. McLane
During structural fire fighting operations, fire fighters wear protective gear to insulate them from high temperature environments, including hot combustion gases, burning surfaces, and thermal radiation. Current turnout gear insulates the fire fighter to

A New Molecular Model for Lithium's Biological Interactions

July 25, 2016
Author(s)
John Marino, Katharine T. Briggs, Gary G. Giulian, Joe Kao, Gong Li
Lithium carbonate, a drug for the treatment of Bipolar Disorder, provides mood stability to mitigate recurrent episodes of mania and/or depression. Despite its long term and widespread use, the mechanism by which lithium acts to elicit these psychological

Chemical kinetic model uncertainty minimization through laminar flame speed measurements

July 25, 2016
Author(s)
Okjoo Park, Peter S. Veloo, David Sheen, Yujie Tao, Fokion N. Egolfopoulos, Hai Wang
Laminar flame speed measurements were carried for mixture of air with eight C3-4 hydrocarbons (propene, propane, 1,3-butadiene, 1-butene, 2-butene, iso-butene, n-butane, and iso-butane) at the room temperature and ambient pressure. Along with C1-2

Durability of Carbon Nanotube Polymer-Fiber Composites

July 25, 2016
Author(s)
Aaron Forster, James Liddle, Donald Hunston, Ajay Krishnamurthy
Significant composite strength improvements have been achieved using highly aligned and dense carbon nanotube fibers with low resin concentration, but these remain ac-cessible only to aerospace applications [1]. The potential of carbon nanotubes for high

Effects of Wind Speed and Angle on Fire Spread along Privacy Fences

July 25, 2016
Author(s)
Erik L. Johnsson, Alexander Maranghides
A series of experiments was conducted to examine fire spread along fences subjected to wind at various speeds and angles. Specifically, sections of western redcedar, California redwood, or vinyl privacy fences were ignited with a burner. Wind fields of 9 m

Getting the units right

July 25, 2016
Author(s)
Howard S. Cohl, Moritz A. Schubotz, David Veenhuis
To understand applied physics, and physical formulae in particular, the investigation of identifier units is beneficial. However, normally the units are not given explicitly in formulae and have to be inferred. In this paper, we investigate how this

Introducing a New NIST Reference Material: Multiwall Carbon Nanotube Soot

July 25, 2016
Author(s)
Ann C. Chiaramonti Debay, Ryan M. White, Jason D. Holm, Elisabeth Mansfield
Multi-walled carbon nanotubes (MWCNTs) play a significant role in the nascent nanotechnology industry, due to their remarkable combination of mechanical, thermal, and electrical properties. These materials are specialty additives, reinforcing a diverse

Physical Realization of a Quantum Spin Liquid Based on a Complex Frustration Mechanism

July 25, 2016
Author(s)
Christian Balz, Bella Lake, Johannes Reuther, Hubertus Luetkens, Rico Schonemann, Thomas Herrmannsdorfer, Yogesh Singh, A.T.M. Nazmul Islam, Elisa M. Wheeler, Jose Rodriguez Rivera, Tatiana Guidi, G. Giovanna Simeoni, Chris Baines, Hanjo Ryll
Unlike conventional magnets where the magnetic moments are partially or completely static in the ground state, in a quantum spin liquid they remain in collective motion down to the lowest temperatures. The importance of this stat is that it is coherent and

Targets for Relative Range Error Measurement of 3D Imaging Systems.

July 25, 2016
Author(s)
Prem K. Rachakonda, Balasubramanian Muralikrishnan, Katharine M. Shilling, Geraldine S. Cheok, Vincent D. Lee, Christopher J. Blackburn, Dennis S. Everett, Daniel S. Sawyer
The Dimensional Metrology Group (DMG) at the National Institute of Standards and Technology (NIST) is performing research to support the development of documentary standards within ASTM E57 for the point-to-point performance evaluation of 3D imaging

Test method for measuring the electrical output of electroshock weapons

July 25, 2016
Author(s)
Nicholas G. Paulter Jr., David M. Jenkins, Norimitsu Ichikawa, Michael Leonesio
Electroshock weapons (ESWs) have become a ubiquitous component of weapons used in the arsenal of domestic law enforcement (LE) agencies and the military around the world. It is a major contributor to the escalation of force policies and procedures of many

Demultiplexing Spectrum-Sharing Field Sources with Distributed Field Probes

July 24, 2016
Author(s)
Dan Kuester, Ryan T. Jacobs, Yao Ma, Jason Coder
A complete characterization of multiple-device wireless interactions must include data relatable to the electromagnetic field radiated by each device under test (DUT). If these field sources are separable in time or frequency, they can be demultiplexed
Displaying 15876 - 15900 of 73893
Was this page helpful?