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Displaying 1101 - 1125 of 5218

Current status and future directions for in situ transmission electron microscopy

August 6, 2016
Author(s)
M. L. Taheri, Eric Stach, Ilke Arslan, Peter A. Crozier, Kabius Bernd, Thomas LaGrange, Andrew Minor, Seiji Takeda, Mihaela M. Tanase, Jakob B. Wagner, Renu Sharma
This review article discusses the current and future possibilities for the application of in situ transmission electron microscopy to reveal synthesis pathways and functional mechanisms in complex and nanoscale materials. The findings of a group of

A New International Data Science Program

August 4, 2016
Author(s)
Bonnie J. Dorr, Craig Greenberg, Peter Fontana, Mark A. Przybocki, Marion Le Bras, Cathryn A. Ploehn, Oleg Aulov, Wo L. Chang
This article sets out to examine foundational issues in data science including current challenges, basic research questions, and expected advances, as the basis for a new Data Science Research Program and associated Data Science Evaluation (DSE) series

Data Science Research Program at NIST Information Access Division

August 4, 2016
Author(s)
Bonnie J. Dorr, Craig Greenberg, Peter Fontana, Mark A. Przybocki, Marion Le Bras, Cathryn A. Ploehn, Oleg Aulov, Edmond J. Golden III, Wo L. Chang
We examine foundational issues in data science including current challenges, basic research questions, and expected advances, as the basis for a new Data Science Initiative and evaluation series, introduced by the Information Access Division at the

Electrospray Differential Mobility Hyphenated with Single Particle Mass Spectrometry for Characterization of Nanoparticles and their Aggregates

August 1, 2016
Author(s)
Jiaojie Tan, Jingyu Liu, Mingdong M. Li, Hind El Hadri, Vincent A. Hackley, Michael R. Zachariah
The hyphenation of electrospray-differential mobility analysis with single particle-inductively coupled plasma mass spectrometry (ES-DMA-spICP-MS) was demonstrated with the capacity for real- time size, mass and concentration measurement of nanoparticles

Results from the Magnetic Suspension Mass Comparator for Vacuum-to-Air Mass Dissemination in Support of the Redefinition of the Kilogram

August 1, 2016
Author(s)
Corey A. Stambaugh, Eric C. Benck, Edward C. Mulhern, Patrick J. Abbott, Zeina J. Kubarych
Experiments to realize the new definition of the kilogram will be carried out in vacuum. NIST has developed a magnetic suspension mass comparator to disseminate the new definition to air. This paper details the current status of the system. This includes

Checking the Net Contents of Packaged Goods (NIST HB 133 2016)

July 28, 2016
Author(s)
Linda D. Crown, David A. Sefcik, Lisa Warfield
This handbook has been prepared as a procedural guide for the compliance testing of net contents statements on packaged goods. Compliance testing of packaged goods is the determination of the conformance results of the packaging, distribution, and

Dynamic Metrology and ASTM E57.02 Dynamic Measurement Standard

July 28, 2016
Author(s)
Roger V. Bostelman, Tsai H. Hong, Mili Shah, Steven Legowik
Optical tracking systems are used in a wide range of fields. The market for optical tracking systems has dramatically increased over the past several years to $1.2B revenue in 2014. This paper describes the new ASTM E3064 Standard test method procedures

NIST Micronutrients Measurement Quality Assurance Program Summer 2015 Comparability Studies: Results for Round Robin LXXVIII Fat-Soluble Vitamins and Carotenoids in Human Serum and Round Robin 43 Ascorbic Acid in Human Serum

July 28, 2016
Author(s)
Jeanice M. Brown Thomas, David L. Duewer
The National Institute of Standards and Technology coordinates the Micronutrients Measurement Quality Assurance Program (MMQAP) for laboratories that measure fat- and water-soluble vitamins and carotenoids in human serum and plasma. This report describes

NIST Micronutrients Measurement Quality Assurance Program Winter 2015 Comparability Studies: Results for Round Robin LXXVII Fat-Soluble Vitamins and Carotenoids in Human Serum and Round Robin 42 Ascorbic Acid in Human Serum

July 28, 2016
Author(s)
Jeanice M. Brown Thomas, David L. Duewer
The National Institute of Standards and Technology coordinates the Micronutrients Measurement Quality Assurance Program (MMQAP) for laboratories that measure fat- and water-soluble vitamins and carotenoids in human serum and plasma. This report describes
Displaying 1101 - 1125 of 5218
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