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Displaying 3926 - 3950 of 4212

Formation of a crack-free, hybrid skin layer with tunable surface topography and improved gas permeation selectivity on elastomers using gel-liquid infiltration polymerization

September 11, 2017

Author(s)

Justin Gorham, Jason Killgore, Maryam Omidvar, Haiqing Lin, Frank W. DelRio, Lewis M. Cox, Zheng Zhang

… polymerization (ll-IP) is conventionally used for manufacturing bulk polymers like nylon, as well as forming …

Evaluating Droplet Digital PCR for the quantification of human genomic DNA: Lifting the Traceability Fog

March 28, 2017

Author(s)

David L. Duewer, Margaret C. Kline

Digital polymerase chain reaction (dPCR) endpoint platforms directly estimate the number of DNA target copies per reac-tion container, λ, where the containers are fixed-location chambers (cdPCR) or aqueous droplets floating in oil (ddPCR). For use in the

Nanotribology: the Link to Macrotribology

February 19, 2017

Author(s)

Stephen M. Hsu

… blossom into untold technologies in medicine, health-care, manufacturing, microelectronics, aerospace,informatics. …

The Canonical Robot Command Language (CRCL)

August 1, 2016

Author(s)

Frederick M. Proctor, Stephen B. Balakirsky, Zeid Kootbally, Thomas R. Kramer, Craig I. Schlenoff, William P. Shackleford

Industrial robots can perform motion with sub-millimeter repeatability when programmed using the teach-and-playback method. While effective, this method requires significant up-front time, tying up the robot and a person during the teaching phase. Off-line

The I/O transform of a chemical sensor

March 14, 2016

Author(s)

Nalin Katta, Douglas C. Meier, Kurt D. Benkstein, Stephen Semancik, Baranidharan Raman

A number of sensing technologies using a variety of transduction principles have been proposed for the purpose of non-invasive chemical sensing. A fundamental problem common to all sensing technologies is determining what features of the transducer's

Calibration and Measurement Procedures for a High Magnification Thermal Camera

January 8, 2016

Author(s)

Brandon M. Lane, Eric P. Whitenton

Infrared thermography is a relatively mature measurement science, however systematic evaluation of measurement uncertainty for multi-point measurement (an infrared focal plane array) is very limited, or, does not follow uncertainty evaluation guidelines

Low-Loss Electron Imagine for Enhanced Surface Detail in the Scanning Electron Microscope: The Contributions of Oliver C. Wells

January 7, 2015

Author(s)

Michael T. Postek, Andras Vladar

Low-loss electron (LLE) imaging in the scanning electron microscope (SEM) is based on the collection of energy-filtered backscattered electrons that have undergone minimal elastic interactions within a sample and therefore can carry high-resolution

Fire Cartridge Case Identifications Using Optical Images and Congruent Matching Cells (CMC) Method

November 6, 2014

Author(s)

D Ott, Jun-Feng Song, Wei Chu, Robert Thompson

The Congruent Matching Cells (CMC) method was invented at the National Institute of Standards and Institute (NIST). The CMC method is based on correlation of pairs of small correlation cells instead of correlation on the entire images. Four identification

Determining sample alignment in X-ray Reflectometry using thickness and density from GaAs/AlAs multilayer certified reference materials

September 8, 2014

Author(s)

Donald Windover, David L. Gil, Yasushi Azuma, Toshiyuki Fujimoto

X-ray reflectometry (XRR) provides researchers and manufacturers with a non-destructive way to determine thickness, roughness, and density of thin films deposited on smooth substrates. Due to the nested nature of equations modeling this phenomenon, the

Viscoelastic Characterization of Fusion Processing in Bimodal Polyethylene Blends

June 2, 2014

Author(s)

Aaron Forster, Wei-Lun Ho, Kar T. Tan, Donald Hunston

… of five different polyethylene resins used for pipe manufacturing at short times. High strain behavior related to …

NIST traceable measurements of radiance and luminance levels of night-vision-goggle test-instruments

May 7, 2014

Author(s)

George P. Eppeldauer, Vyacheslav B. Podobedov

In order to perform radiance and luminance level measurements of night-vision-goggle (NVG) test instruments, NIST developed new-generation transfer-standard radiometers (TR). The new TRs can perform low-level radiance and luminance measurements with SI

The IAQ and Energy Impacts of Reducing Formaldehyde Emissions in Commercial Building

February 11, 2014

Author(s)

Lisa C. Ng, Andrew K. Persily, Steven J. Emmerich, Kevin Y. Teichman

… of composite wood products, such as those used in manufacturing furniture. Also, based on the health effects of …

Methods for Accurate Cold-Chain Temperature Monitoring Using Digital Data-Logger Thermometers

September 10, 2013

Author(s)

Michal J. Chojnacky, Gregory F. Strouse, W. Wyatt Miller

Complete and accurate records of vaccine temperature history are vital to preserving drug potency and patient safety. However, previously published vaccine storage and handling guidelines have failed to indicate a need for continuous temperature monitoring

Incorporating Adult Learning Methods and Project Based Learning in Laboratory Metrology Courses

June 15, 2013

Author(s)

Georgia L. Harris

Measurement scientists work in calibration laboratories throughout the world. Yet, there are few university level courses available that cover the critical topics needed for performing and analyzing precision measurements at the desired level. Many

Organosilicate Polymer E-Beam Resists with High Resolution, Sensitivity and Stability

February 28, 2013

Author(s)

Christopher Soles, Richard Kasica, Hae-Jeong Lee, Jae H. Sim, Sung-Il Lee, Ki-Bum Kim, Hyun-Mi Kim, Do Y. Yoon

… improved to have HSQ resists adopted for volume manufacturing. Here we develop novel organosilicate e-beam …

Workshop Report: Building the Materials Innovation Infrastructure: Data and Standards A Materials Genome Initiative Workshop

November 23, 2012

Author(s)

James Warren, Ronald Boisvert

The Materials Genome Initiative (MGI) is a multi-agency, multi-stakeholder effort to develop the infrastructure needed to enable the materials science community to discover, develop, manufacture, and deploy advanced materials at least twice as fast as

A Study on Safety: Highlights from Workshop on Ambulance Patient Compartments

October 31, 2012

Author(s)

Jennifer L. Marshall, Yung-Tsun T. Lee

… Emergency Medical Services (EMS) community and ambulance manufacturing community. This paper describes the workshop, …

SEM imaging of ultra-high aspect ratio hole features

March 29, 2012

Author(s)

John S. Villarrubia, Aron Cepler, Benjamin D. Bunday, Bradley Thiel

In-line, non-destructive process control metrology of high aspect ratio (HAR) holes and trenches has long been a known gap in metrology. Imaging the bottoms of at-node size beyond 10:1 AR contact holes in oxide has not yet been demonstrated. Nevertheless

NMR Analysis of Metabolic Responses to Extreme Growing Conditions of the Temperature-Dependent Coral Pathogen Vibrio coralliilyticus

December 5, 2011

Author(s)

Arezue Boroujerdi, Stephen S. Jones, Dan Bearden

Recent metabolomics research on the temperature-dependent coral pathogen Vibrio coralliilyticus has led to the discovery of several compounds produced by the organism as a response to high-density, low nutrient growing conditions. Three compounds

Multi-Relationship Evaluation Design: Formalizing Test Plan Input and Output Elements for Evaluating Developing Intelligent Systems

August 31, 2011

Author(s)

Brian A. Weiss, Linda C. Schmidt

… Advanced and intelligent systems within the manufacturing, military, homeland security, and automotive …

Applications of Cross-Correlation Functions

April 14, 2010

Author(s)

Theodore V. Vorburger, Jun-Feng Song, Wei Chu, Li Ma, Xiaoyu A. Zheng, Thomas B. Renegar, Son H. Bui

We describe several examples where we use cross-correlation functions to quantify the similarity of 2D surface profiles or of 3D surface topography images. The applications have included 1) the manufacture of Standard Reference Material (SRM) bullets and

NIST High Resolution X-Ray Diffraction Standard Reference Material: SRM 2000

October 30, 2009

Author(s)

Donald A. Windover, David L. Gil, Albert Henins, James P. Cline

… to allow measurement intercomparison for both research and manufacturing communities. This first HRXRD SRM release …

STEP-OAGIS Harmonization Joint Working Group, PDM Subgroup Interim Report

August 27, 2009

Author(s)

Xenia Fiorentini, Sudarsan Rachuri

… In any manufacturing enterprise, there are two types of tools used …

Modeling the Effects of Outdoor Gasoline Powered Generator Use on Indoor Carbon Monoxide Exposures

August 14, 2009

Author(s)

Steven J. Emmerich, Liangzhu Wang

The U.S. Centers for Disease Control and Prevention (CDC) has reported that up to half of non-fatal CO poisoning incidents during the hurricane seasons in 2004 and 2005 involved generators operated outdoors but within seven feet of the home. The guidance

Characterization of Ambient Temperature Cure Epoxies Used in Adhesive Anchor Applications

May 20, 2009

Author(s)

Joannie W. Chin, Aaron M. Forster, Cyril Clerici, Donald L. Hunston

Thermo-viscoelastic properties and creep response of two commercial, ambient temperature cure epoxy structural adhesives were analyzed and compared. The adhesives were formulated by the same manufacturer and appeared to have the same base chemistry

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