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Search Publications

NIST Authors in Bold

Displaying 12051 - 12075 of 13225

Development of combined microstructure and structure characterization facility for in situ and operando studies at the Advanced Photon Source

June 1, 2018
Author(s)
Jan Ilavsky, Fan Zhang, Ross N. Andrews, Ivan Kuzmenko, Pete R. Jemian, Lyle E. Levine, Andrew J. Allen
… measurements can now be made within five minutes, allowing in situ and operando measurement capabilities with great … X-ray scattering, microstructure characterization, in situ structure characterization, advanced materials, … microstructure and structure characterization facility for in situ and operando studies at the Advanced Photon Source …

Pre-Viking Swedish Hillfort Glass: A Novel Long-Term Alteration Analogue for Vitrified 6 Nuclear Waste

March 1, 2018
Author(s)
Jamie L. Weaver, Carolyn Pearce, Rolf Sjoblom, John McCloy, Micah Miller, Tamas Varga, Bruce Arey, Michele Conroy, David Peeler, Robert Koestler, Paula DePriest, Edward Vicenzi, Albert Kruger
… Examining ancient anthropogenic glasses altered in natural environments over hundreds of years can inform and … retain radionuclides for >1000 years, and will be disposed in shallow subsurface environments. Two types of ancient … are discussed in the context of ancient glassmaking technology. …

An Overview of Activities at NIST Towards the Proposed ASTM E57 3D Imaging System Point-to-Point Distance Standard

October 16, 2017
Author(s)
Prem K. Rachakonda, Balasubramanian Muralikrishnan, Katharine M. Shilling, Geraldine S. Cheok, Daniel S. Sawyer
… Group (DMG) at the National Institute of Standards & Technology (NIST), along with various other organizations has been involved in the development of a documentary standard for 3D imaging instruments that acquire data in spherical coordinate system. NIST led this effort and …

Heterogeneous integration for on-chip quantum photonic circuits with single quantum dot devices

October 12, 2017
Author(s)
Marcelo I. Davanco, Liu Jin, Luca Sapienza, Chen-Zhao Zhang, Jose Vinicius De Miranda Cardoso, Varun B. Verma, Richard P. Mirin, Sae Woo Nam, Liu Liu, Kartik A. Srinivasan
… Photonic integration is establishing itself as an enabling technology for photonic quantum science, offering … pure single-photon emission from single quantum dots in GaAs nanophotonic waveguides and cavities, directly … platform, strong control of the quantum dot radiative rate in GaAs microring cavities. InAs/GaAs quantum dots to date …

Autonomous Relocation Strategies for Cells on Wheels in Environments with Prohibited Areas

July 31, 2017
Author(s)
Kamran Sayrafian, Ladan Rabieekenari, John Baras
… Public safety organizations increasingly rely on wireless technology for their mission critical communication during disaster response operations. In such situations, a communication network could face much … operation. Given the limited capacity of base stations in the network, such peak traffic scenarios could lead to …

SI traceable determination of arsenic species in kelp (Thallus laminariae)

June 26, 2017
Author(s)
Lee L. Yu, Rolf L. Zeisler, Rachel C. Stanoyevitch
… a candidate standard reference material (SRM) 3232 Kelp in development at the National Institute of Standards and Technology (NIST). Arsenosugars and dimethylarsinic acid (DMA) that accounted for > 97% arsenic in the extract were separated into fractions that were …

Verification of Resilience Policies that Assist Attribute Based Access Control

March 24, 2017
Author(s)
Chung Tong Hu, Antonios Gouglidis, Jeremy Busby, David Hutchison
… that are performed by a user on a set of resources in a system. Many access control models exist that are able … this basic requirement. One of the properties examined in the context of these models is their ability to … provided by the National Institute of Standards and Technology (NIST). We examine how ABAC based resilience …

Crystallography and Crystal Chemistry of (Ba 1-x Sr x )2TiO 4

February 19, 2017
Author(s)
Winnie Wong-Ng, James A. Kaduk, Debra L. Kaiser, Julia Frank
… to literature reports, among the orthorhombic members in the (Ba2-xSrx)TiO4 series two different structures were … Pnma, the space group for 0.5 < x 1.30 is Pna21 (No. 33). In the Pna21 structure, the twist angles between two … is no longer maintained. The approximate maximum x in (Ba2-xSrx)TiO4 is 1.3. A miscibility gap was found between …

Proceedings of the 13th IEEE International Symposium on Applications of Ferroelectrics

February 19, 2017
Author(s)
Grady S. White, T Tsurumi
… Proceedings from the Joint Conference are published in separate journals for each participating organization.This … 2000. Papers are organized into oral and poster groupings in the conference and are further resorted according to the … diligence of Ms. Michiko Fukutomi of Tokyo Institute of Technology who served as a secretary of the Publication …

The Role of Oxidation in the Migration Mechanism of Layered Silicate in Polypropylene Nanocomposites

February 19, 2017
Author(s)
Mauro Zammarano, Jeffrey W. Gilman, Marc R. Nyden, Eli M. Pearce, Menachem Lewin
… well demonstrated that heating induces structural changes in PLS which are depending on the nature of the atmosphere … clay particles to the surface were suggested for heating in the isothermal conditions. The first one is due to the … The clay migrates to the surface due to a difference in the interfacial tension between clay and polymer, and the …

Certification of New Standard Reference Material 2806b Medium Test Dust in Hydraulic Oil

December 19, 2016
Author(s)
Robert A. Fletcher, Nicholas W. Ritchie, David S. Bright, James J. Filliben, William F. Guthrie
… Standard Reference Material (SRM) 2806b - Medium Test Dust in Hydraulic Fluid. SRM 2806b consists of a trace … irregularly shaped mineral dust particles suspended in hydraulic fluid. The certified properties of SRM 2806b are … by image analysis. Two technological advantages utilized in this effort were an automated SEM and an automated image …

High Strain Rate Deformation of Ti-6Al-4V through Compression Kolsky Bar at High Temperatures

June 7, 2016
Author(s)
Sindhura Gangireddy, Steven P. Mates
… been developed at the National Institute of Standards and Technology (NIST) to understand dynamic properties of metals. … impact and other extreme thermo-mechanical events. In this paper, we present our first results from the study of … results demonstrate significant thermal softening in the alloy that could be described by Johnson-Cook equation …

Design and calibration of an artifact for evaluating laser scanning articulating arm CMMs used for measuring complex non-concurrent surfaces

October 30, 2015
Author(s)
Vincent D. Lee, Steven D. Phillips, Craig M. Shakarji, Jeffrey Hosto, Jeffrey Huber, Gillich Barbara
… science finding applications throughout modern technology, including the testing of human-worn body armor … the design and calibration of artifacts intended as in situ check standards for articulating arm CMMs equipped … used to evaluate the effectiveness of the body armor in standardized tests. The tests involve firing a projectile …

Shape Descriptors Comparison for Cell Tracking

October 15, 2015
Author(s)
Michael P. Majurski, Christopher Zheng, Joe Chalfoun, Alden A. Dima, Mary C. Brady
New microscope technologies are enabling the acquisition of large volumes of live cell image data. Accurate temporal object tracking is required to facilitate the analysis of this data. One principle component of cell tracking is correspondence, matching

Unparalleled Lithium and Sodium Superionic Conduction in Solid Electrolytes with Large Monovalent Cage-like Anions

October 8, 2015
Author(s)
Wan Si NMN Tang, Atsushi Unemoto, Wei Zhou, Vitalie Stavila, Motoaki Matsuo, Hui Wu, Shin-Ichi Orimo, Terrence J. Udovic
… shortcomings of organic liquid electrolytes prevalent in today's rechargeable batteries. We recently revealed a … that room-temperatures-stabilized superionic salts in corporating such large polyhedral anion building blocks … their future prospects as practical electrolyte materials in next-generation, all-solid-state batteries. …

On-Chip Integrated Silicon Photonic Thermometers

September 1, 2015
Author(s)
Nikolai N. Klimov, Thomas P. Purdy, Zeeshan Ahmed
… sensor ownership have produced considerable interest in the development of photonics-based temperature sensors as … sensors have the potential to leverage advances in frequency metrology to provide cost effective measurement … devices, were fabricated using silicon-on-insulator CMOS-technology. The devices have built-in Fabry-Perot cavities, …

Thermochemical Characterization of Biodiesel Fuels using a Novel Laser-Heating Technique

August 4, 2015
Author(s)
Cary Presser, Ashot Nazarian, Thomas J. Bruno, Jacolin A. Murray, John L. Molloy
… used to characterize National Institute of Standards and Technology Standard Reference Material (SRM) diesel and … to achieve nearly uniform sample temperature. The change in sample temperature with time (i.e., thermal signature) is … also consistent with the distillation curve work reported in the literature. …

Improving Clinical Workflow in Ambulatory Care: Implemented Recommendations in an Innovation Prototype for the Veterans Health Administration

August 3, 2015
Author(s)
Svetlana Z. Lowry, Emily S. Patterson, Mala Ramaiah, Michael C. Gibbons, David Brick, Robert Calco, Greg Matton, Anne Miller, Ellen Makar, Jorge Ferrer
… The National Institute of Standards and Technology (NIST) presented targeted recommendations from human factors workflow methods that could be used in ambulatory (outpatient) care settings to improve the fit … Next, we describe how the recommendations were implemented in a software prototype, which was developed for a Veteran’s …

Using Indentation to Quantify Transport Properties of Nanophase Segregated Polymer Membranes

July 14, 2015
Author(s)
Eric Davis, Nichole Nadermann, Kirt A. Page, Christopher Stafford, Edwin Chan
… Heterogeneous, nanophase segregated polymers are ubiquitous in technologies such as fuel cells and batteries, water … to characterize network structure and water transport in heterogeneous polymer membranes with thicknesses ranging … nanometers. As a first demonstration, we use measure the in-plane diffusion coefficient of water and the intrinsic …

Revision of the NIST Standard for 223Ra: New Measurements and Review of 2008 Data

July 1, 2015
Author(s)
Denis E. Bergeron, Jeffrey T. Cessna, Leticia S. Pibida
… After discovering a discrepancy in the transfer standard currently being disseminated by the National Institute of Standards and Technology (NIST), we have performed a new primary … and several High Purity Germanium (HPGe) detectors in an attempt to understand the origin of the discrepancy and …

Conformance Testing Methodology Framework for ANSI/NIST-ITL 1-2011 Update: 2013, Data Format for the Interchange of Fingerprint, Facial & Other Biometric Information

June 24, 2015
Author(s)
Christofer J. McGinnis, Dylan J. Yaga, Fernando L. Podio
… faithfully implements the technical requirements defined in a standard. Conformance testing provides developers, … users, and purchasers with increased levels of confidence in product quality and increases the probability of … The Computer Security Division within the Information Technology Laboratory of NIST (NIST/ITL CSD) developed a …

Density-Functional Theory Investigation of Oxidative Corrosion on the UO2(111) Surface

May 14, 2015
Author(s)
Anne M. Chaka, Gloria A. Oxford, Joanne E. Stubbs, Peter J. Eng, John R. Bargar, Thomas P. Trainor
… weathering of uranium dioxide (UO2) is a serious concern in a broad range of technological and environmental systems. … the integrity of nuclear fuel rods, as well as result in the bioavailability of uranium in contaminated ground water at mines, mills, and nuclear …
Displaying 12051 - 12075 of 13225
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