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 11001 - 11025 of 73927

Access Control for Emerging Distributed Systems

November 1, 2018
Author(s)
Chung Tong Hu, David R. Kuhn, David F. Ferraiolo
As big data, cloud computing, grid computing, and the Internet of Things reshape current data systems and practices, IT experts are keen to harness the power of distributed systems to boost security and prevent fraud. How can these systems' capabilities be

An Energy Analyzing Detector for Cold Neutrons

November 1, 2018
Author(s)
Nicholas C. Maliszewskyj, A. Osovizky, Kevin Pritchard, Y. Yehuda-Zada, Louis E. Binkley, Jeffrey B. Ziegler, Peter Tsai, Nancy J. Hadad, George M. Baltic, M. Jackson, C. Hurlbut, Charles F. Majkrzak

Chemical Selection of Emission State Configuration in a Quantum Light Emitter

November 1, 2018
Author(s)
Ming Zheng, Geyou Ao, Stephen K. Doorn
Covalently-introduced photoluminescent sp3 defects generate new emitting states and dramatically expand optical functionality of single-wall carbon nanotubes, opening routes to enhanced imaging, photon upconversion, and room-temperature single photon

Evolution and Challenges of DNS-Based CDNs

November 1, 2018
Author(s)
Zheng Wang, Scott W. Rose
DNS-based server redirecting has been realized as the most popular way to deploy CDNs. However, with the increasing use of remote DNS, DNS-based CDNs faces a great challenge in performance degradation. To address this challenging issue, encouraging

A Comparison Between The Solution Properties of Knotted Ring and Star Polymers

October 31, 2018
Author(s)
Luis F. Vargas Lara, Beatriz Pazmino, Jack F. Douglas
We computationally investigate the solution properties of knotted flexible ring and star polymers by combining molecular dynamics simulation (MD) and path-integral calculations. In particular, we consider knotted rings having a minimal crossing number mc

A more efficient method for calibrating discrete element method parameters for simulations of metallic powder used in additive manufacturing

October 31, 2018
Author(s)
Stephen R. Geer, Michelle Bernhardt, Edward Garboczi, Justin Whiting, Alkan Donmez
Laser powder bed fusion (LPBF) is an additive manufacturing (AM) process that uses a high-power laser to selectively melt metal powder that has been spread, layer-by-layer, to create parts with highly complex features. Because of the strong influence that

Certifying Quantum Randomness by Probability Estimation

October 31, 2018
Author(s)
Emanuel H. Knill, Yanbao Zhang, Peter L. Bierhorst
We introduce probability estimation, a broadly applicable frameworkto certify randomness in a finite sequence of measurements subject to verifiable physical constraints and with respect to classical side information. Examples include randomness from single

Compositional Imaging and Analysis of Late Iron Age Glass from the Broborg Vitrified Hillfort, Sweden

October 31, 2018
Author(s)
Jamie Weaver, Scott A. Wight, Carolyn Pearce, John McCloy, Thomas Lam, Rolf Sjoblom, David Peeler, Michael Schweiger, Albert Kruger, Scott Whittaker, Edward Vicenzi
Numerous Iron Age hillforts were constructed throughout Europe on high ground to serve ancient settlements. The edifice walls of a small fraction of hillforts were vitrified as a result of high temperature activity, most likely to reinforce the walls
Displaying 11001 - 11025 of 73927
Was this page helpful?