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Search Publications

NIST Authors in Bold

Displaying 10776 - 10800 of 74428

Fracture Sequences During Elastic-Plastic Indentation of Brittle Materials

April 12, 2019
Author(s)
Robert F. Cook
A fracture analysis is developed for crack initiation sequences occurring during sharp indentation of brittle materials. Such indentations, generated by pyramidal or conical loading, generate elastic and plastic deformation. The analysis uses a non-linear

Ligand-based stability changes in duplex DNA measured with a microscale electrochemical platform

April 12, 2019
Author(s)
Sarah M. Robinson, Zuliang Shen, Jon R. Askim, Christopher B. Montgomery, Herman O. Sintim, Stephen Semancik
Development of technologies for rapidly screening the thermal stability of DNA secondary structures and the effects on stability for binding of small molecule drugs is important to the drug discovery process. In this report, we describe the capabilities of

Reusable Constructs of Manufacturing Processes for Processing Industries

April 12, 2019
Author(s)
Mahesh Mani, KC Morris, Kevin W. Lyons, William Z. Bernstein
This article specifically explores the new ASTM International Standard Guide for Characterizing Environmental Aspects of Manufacturing Processes and its applicability for the Chemical Industry. The standard provides guidance for industries to examine unit

Optimal Cache Allocation under Network-Wide Capacity Constraint

April 11, 2019
Author(s)
Van Sy Mai, Stratis Ioannidis, Davide Pesavento, Lotfi Benmohamed
Network cache allocation and management are important aspects of an Information-Centric Network (ICN) design, such as one based on Named Data Networking (NDN). We address the problem of optimal cache size allocation and content placement in an ICN in order

Reduction of light shifts in Ramsey spectroscopy with a combined error signal

April 11, 2019
Author(s)
Moshe Shuker, Juniper Wren Y. Pollock, Rodolphe Boudot, V. I. Yudin, A. V. Taichenachev, John E. Kitching, Elizabeth A. Donley
Light-induced frequency shifts can be a key limiting contribution to the mid and long-term frequency stability in atomic clocks. In this letter, we demonstrate the experimental implementation of the combined error signal (CES) interrogation protocol to a

Towards the optical second: verifying optical clocks at the SI limit

April 11, 2019
Author(s)
William F. McGrew, Xiaogang Zhang, Robert J. Fasano, Holly Leopardi, Daniele Nicolodi, Kyle P. Beloy, Jian Yao, Jeffrey A. Sherman, Stefan A. Schaeffer, Joshua J. Savory, Stefania Romisch, Christopher W. Oates, Thomas E. Parker, Tara M. Fortier, Andrew D. Ludlow
The pursuit of ever more precise measures of time and frequency motivates redefinition of the second in terms of an optical atomic transition. To ensure continuity with the current definition, based on the microwave hyperfine transition in 133Cs, it is

Racial Disparity in Maternal Phthalates Exposure; Association with Racial Disparity in Fetal Growth and Birth Outcomes

April 10, 2019
Author(s)
Michael S. Bloom, Abby G. Wenzel, John W. Brock, Rebecca J. Wineland, Lori Cruze, Elizabeth R. Unal, Assem Jiyessova, Roger B. Newman, John Kucklick
Background: Experimental and observational data implicate phthalates as developmental toxicants. However, few data are available to assess the maternal risks of gestational exposure by race and infant sex. Objectives: To characterize associations between

Time to Standardize Threshold Schemes for Cryptographic Primitives

April 10, 2019
Author(s)
Luis Brandao, Michael S. Davidson, Nicky W. Mouha, Apostol T. Vassilev
This bulletin summarizes the information found in NISTIR 8214: Threshold Schemes for Cryptographic Primitives. NIST is interested in promoting the security of implementations of cryptographic primitives. This security depends not only on the theoretical

Spontaneous current constriction in threshold switching devices

April 9, 2019
Author(s)
Jonathan Goodwill, Georg Ramer, Dasheng Li, Brian Hoskins, Georges Pavlidis, Jabez J. McClelland, Andrea Centrone, James A. Bain, Marek Skowronski
Threshold switching devices exhibit extremely non-linear current-voltage characteristics, which are of increasing importance for a number of applications including solid-state memories and neuromorphic circuits. It has been proposed that such non-linear

UCEF 1.0.0-ALPHA Kickoff Workshop: Workshop Report

April 9, 2019
Author(s)
Martin J. Burns, Thomas P. Roth
This report summarizes the results of a workshop held at NIST on July 27, 2017. The goal of this workshop was to introduce participants to the newly constructed Universal CPS Environment for Federation (UCEF). Over 40 attendees were provided with the UCEF

Tuning Kerr-Soliton Frequency Combs to Atomic Resonances

April 5, 2019
Author(s)
Su P. Yu, Travis Briles, Gregory Moille, Xiyuan Lu, Scott Diddams, Kartik Srinivasan, Scott Papp
Frequency combs based on nonlinear optical phenomena in integrated photonics are a versatile light source that can explore new applications, including frequency metrology, optical communications, and sensing. We demonstrate robust frequency-control

Metrology requirements for next generation of semiconductor devices

April 4, 2019
Author(s)
Ndubuisi G. Orji
Although devices based on traditional CMOS architectures are expected to reach their physical limits in the next few years, the devices and materials involved are more complex and difficult to measure than ever before. The nanoscale sizes mean that the

New frontiers for the materials genome initiative

April 4, 2019
Author(s)
Juan J. DePablo, Nicholas E. Jackson, Michael Webb, Long-Qing Chen, Joel Moore, Dane Morgan, Tresa M. Pollock, Darrell G. Schlom, Eric Toberer, James Analytis, Ismalia Dabo, Dean DeLongchamp, Fiete Gregory, Gregory Grason, Geoffroy Hautier, Yifei Mo, Krishna Rajan, Evan Reed, Efrain E. Rodriguez, Vladan Stevanovic, Jin Suntivich, Katsuo Thornton, Ji-Cheng Zhao
The Materials Genome Initiative (MGI) advanced a new paradigm for materials discovery and design, namely that the pace of new materials deployment could be accelerated through complementary efforts in theory, computation, and experiment. Along with
Displaying 10776 - 10800 of 74428
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