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Displaying 1676 - 1700 of 1947

NIST Roadmap Toward Criteria for Threshold Schemes for Cryptographic Primitives

July 7, 2020
Author(s)
Luis Brandao, Michael S. Davidson, Apostol T. Vassilev
This document constitutes a preparation toward devising criteria for the standardization of threshold schemes for cryptographic primitives by the National Institute of Standards and Technology (NIST). The large diversity of possible threshold schemes, as

Contact resistance in organic field-effect transistors: conquering the barrier

May 15, 2020
Author(s)
Matthew Waldrip, Oana Jurchescu, David J. Gundlach, Emily Bittle
Organic semiconductors have sparked significant interest due to their inherent properties as flexible, solution processible, and chemically tunable electronic materials. In the last 10 years, the improvements in charge carrier mobility in small molecule

SI Base Units Relationships Poster

March 3, 2020
Author(s)
Eite Tiesinga, Kristen A. Dill, David B. Newell
This publication is a colorful poster illustrating the relationships of the International System of Units (SI) derived units with special names and symbols and the seven traditional base units. The diagram is aligned with the BIPM SI Brochure, 9th edition

Measuring Ion-Pairing and Hydration in Variable Charge Supramolecular Cages with Microwave Microfluidics

May 17, 2019
Author(s)
Angela C. Stelson, Cynthia M. Hong, Mitchell C. Groenenboom, Charles A. Little, James C. Booth, Nathan D. Orloff, Robert G. Bergman, Kenneth N. Raymond, Kathleen A. Schwarz, F. D. Toste, Christian J. Long
MetaMetal–organic supramolecular cages can act as charged molecular containers that mediate reactions, mimic enzymatic catalysis, and selectively sequester chemicals.1,2 The hydration of these cages in solution plays a crucial role in their interactions

Atomic Transition Probabilities of Aluminum and Silicon A Critical Compilation

November 14, 2018
Author(s)
Daniel E. Kelleher, Larissa Podobedova
This compilation is the second in a series of updates to Atomic Transition Probabilities, Sodium through Calcium, published in 19691. Atomic transition probabilities have been critically evaluated and compiled for about 10,800 spectral lines of aluminum

Atomic Transition Probabilities of Sodium and Magnesium A Critical Compilation

November 14, 2018
Author(s)
Daniel E. Kelleher, Larissa Podobedova
This compilation is the first in a series of updates to Atomic Transition Probabilities, Sodium through Calcium, published in 19691. Atomic transition probabilities have been critically evaluated and compiled for about 12,000 spectral lines of sodium and

A practical field guide to thermoelectrics: fundamentals, synthesis, and characterization

June 27, 2018
Author(s)
Alex Zevalkink, David M. Smiadak, Joshua Martin, Michael Chabinyc, Olivier Delaire, Jeffrey Blackburn, Andrew Ferguson, Jian Wang, Kirill Kovnir, Laura Schelhas, Stephen D. Kang, Maxwell T. Dylla, G. J. Snyder, Brenden Ortiz, Eric Toberer
The study of thermoelectric materials spans condensed matter physics, materials science and engineering, and solid-state chemistry. The diversity of the participants and the inherent complexity of the topic means that it is difficult, if not impossible, for

3.5 GHz Environmental Sensing Capability Detection Thresholds and Deployment

September 1, 2017
Author(s)
Thao Nguyen, Anirudha Sahoo, Michael R. Souryal, Timothy Hall
Spectrum sharing in the 3.5~GHz band between commercial and government users along U.S. coastal areas depends on an Environmental Sensing Capability (ESC)---that is, a network of radio frequency sensors and a decision system---to detect the presence of

3.5 GHz Environmental Sensing Capability Sensitivity Requirements and Deployment

March 5, 2017
Author(s)
Thao T. Nguyen, Anirudha Sahoo, Michael R. Souryal, Timothy Hall
Spectrum sharing in the 3.5 GHz band between commercial and government users along U.S. coastal areas depends on an Environmental Sensing Capability (ESC), a network of radio frequency sensors and a decision system, to detect the presence of incumbent

Pore Collapse and Regrowth in Silicon Electrodes for Rechargeable Batteries

April 21, 2015
Author(s)
Steven C. DeCaluwe, Bal Mukund NMN Dhar, Liwei Huang, Yuping He, Kaikun Yang, Jon P. Owejan, Yiping Zhao, A. Alec Talin, Joseph Dura, Howard Wang
Structure and composition changes of an alumina capped amorphous silicon (a-Si) thin-film anode in a lithium half-cell are measured, in opernado, by neutron reflectivity (NR) and electrochemical impedance spectroscopy. The a-Si anode's thickness expands

Modelling the vertical UL 94 test: Competition and collaboration between melt dripping, gasification and combustion

June 24, 2014
Author(s)
Florian Kempel, Bernhard Schartel, Julio M. Marti, Kathryn Butler, Riccardo Rossi, Sergio R. Idelsohn, Anja Hofmann
An experimental and numerical investigation of the impact of the additives bisphenol A bis(diphenyl phosphate) (BDP) and polytetrafluoroethylene (PTFE) on the fire behaviour of bisphenol A polycarbonate / acrylonitrile butadiene styrene (PC/ABS) in the

Development of a conceptual framework for evaluation of nanomaterials release from nanocomposites: environmental and toxicological implications

January 2, 2014
Author(s)
Jame Ging, Raul Tejerina-Anton, Girish Ramakrishnan, Mark Nielsen, Kyle Murphy, Justin Gorham, Tinh Nguyen, Alexander Orlov
Despite the fact that nanomaterials are considered potentially hazardous in a freely dispersed form, they are often considered safe when encapsulated into a polymer matrix. However, systematic research to confirm the abovementioned paradigm is lacking

Quality Information Framework - Integrating Metrology Processes

May 25, 2012
Author(s)
Fiona Zhao, Thomas Kramer, John A. Horst, William G. Rippey, Robert Brown
As defined by major dimensional metrology system users and suppliers, the Quality Information Framework (QIF) is an integrated and holistic set of information models which, if widely adopted, can enable the effective exchange of metrology data throughout

A Dosimetric Uncertainty Analysis for Photon-Emitting Brachytherapy Sources: Report of the AAPM Task Group No. 138 and GEC-ESTRO

February 1, 2011
Author(s)
Larry A. DeWerd, Geoffrey S. Ibbott, Ali S. Meigooni, Michael G. Mitch, Mark J. Rivard, Kurt E. Stump, Bruce R. Thomadsen, Jack L. Venselaar
This report addresses uncertainties pertaining to brachytherapy source dosimetry. The ISO Guide to the Expression of Uncertainty in Measurement (GUM) and the NIST Technical Note 1297 are taken as reference standards for uncertainty formalism. Uncertainties

Shell-dependent Blinking of CdSe-Based Core/Shell Nanocrystals

May 10, 2010
Author(s)
Seung Koo Shin, Bonghwan Chon, Sung Jun Lim, Wonjung Kim, Hyeong G. Kang, Taiha Joo, Jeeseong C. Hwang
Blinking of zinc-blende CdSe-based core/shell nanocrystals are studied as a function of shell materials. CdSe/ZnS, CdSe/ZnSe/ZnS, and CdSe/CdS/ZnS core/shell nanocrystals are prepared by epitaxial growth of two-to-six monolayers (MLs) of shell materials

The Limits and Extensibility of Optical Patterned Defect Inspection

April 1, 2010
Author(s)
Richard M. Silver, Bryan M. Barnes, Martin Y. Sohn, Richard Quintanilha, Hui Zhou, Chris Deeb, Mark Johnson, Milton Goodwin, Dilip Patel
New techniques recently developed at the National Institute of Standards and Technology using bright field optical tools are applied to signal-based defect analysis of features with dimensions well below the measurement wavelength. A key to this approach

Effect of Air Infiltration and Ventilation

November 17, 2009
Author(s)
Andrew K. Persily, Steven J. Emmerich
This chapter discusses the role of air infiltration and ventilation in building moisture transport. While water vapor diffusion can be a very important moisture transport mechanism, as discussed in other chapters, bulk air movement via infiltration and

Development of an infrared optical scattering instrument from 1 um to 5 um

October 1, 2009
Author(s)
Jinan Zeng, Leonard M. Hanssen
The wavelength coverage of the IR optical scattering instrument developed at the National Institute of Standards and Technology has been extended to cover the continuous range from 1 um to 5 um. Besides the previously available diode lasers at wavelengths
Displaying 1676 - 1700 of 1947
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