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Search Publications

NIST Authors in Bold

Displaying 16476 - 16500 of 73697

A Review and Survey of Metrology Outreach Efforts in Post-Secondary Education

March 1, 2016
Author(s)
Georgia L. Harris, Maria Isabel Pena
The paper presents a brief history and background of metrology outreach efforts to colleges and universities. It also includes a summary of a 2015 international educational survey used in part to assess colleges and universities that have measurement

Comparison of C-14 liquid scintillation counting at NIST and NRC Canada

March 1, 2016
Author(s)
Denis E. Bergeron, Raphael Galea, Lizbeth Laureano-Perez, Brian E. Zimmerman
An informal bilateral comparison of 14C liquid scintillation (LS) counting at the National Research Council of Canada (NRC) and the National Institute of Standards and Technology (NIST) has been completed. Two solutions, one containing 14C-labeled sodium

Cross-spectrum Measurement of Thermal-noise Limited Oscillators

March 1, 2016
Author(s)
Archita Hati, Craig W. Nelson, David A. Howe
Cross-spectrum analysis is a commonly-used technique for the detection of phase and amplitude noise of a signal in the presence of interfering noise. It extracts the desired correlated noise from two time series which also contain uncorrelated interfering

Developments in the Ni-Nb-Zr Amorphous Alloy Membranes

March 1, 2016
Author(s)
S. Sarker, D. Chandra, M. Hirscher, M. Dolan, D. Isheim, J. Wermer, D. Viano, M. Baricco, Terrence J. Udovic, D. Grant, O. Palumbo, A. Paolone, R. Cantelli
Most of the global H 2 production is derived from hydrocarbon-based fuels, and efficient H 2/CO 2 separation is necessary to deliver a high purity H 2 product. Hydrogen-selective alloy membranes are emerging as a viable alternative to traditional pressure

Economics of Community Disaster Resilience Workshop Proceedings

March 1, 2016
Author(s)
Bilal Ayyub, Robert E. Chapman, Gearald Galloway, Richard Wright
This report documents the effort launched by the National Institute of Standards and Technology (NIST) to develop, organize, and convene a workshop on the economics of community disaster resilience to promote the use of economics for system sustainment and

Global DNA methylation loss associated with mercury contamination and aging in the American alligator (Alligator mississippiensis)

March 1, 2016
Author(s)
Frances Nilsen, John Bowden, Brittany L. Kassim, Colleen E. Bryan Sallee, Stephen E. Long, Benjamin B. Parrott, Stephen E. Somerville, Ted Lange, Patrick Delaney, Arnold Brunell, Louis J. Guillette
Mercury is a widespread environmental contaminant with exposures eliciting a well-documented catalog of negative outcomes in animals. Yet, our knowledge regarding the underlying mechanisms by which mercury exposures exert these effects remains incomplete

Linkage via K27 Bestows Ubiquitin Chains with Unique Properties Among Polyubiquitins

March 1, 2016
Author(s)
Carlos A. Castaneda, Emma K. Dixon, Olivier Walker, Apurva Chaturvedi, Mark A. Nakasone, Joseph E. Curtis, Megan R. Reed, Susan T. Krueger, T. Ashton Cropp, David Fushman
Polyubiquitination, a critical protein post-translational modification, signals fora diverse set of cellular events via the different isopeptide linkages formed between the C0terminus of one ubiquitin (Ub) and the ε}-amine of K6, K11, K27, K29, K33, K48

Long-term stability of carrier-added Ge-68 standardized solutions

March 1, 2016
Author(s)
Brian E. Zimmerman, Denis E. Bergeron, Ryan P. Fitzgerald, Jeffrey T. Cessna
Tests for chemical stability were carried out on carrier-added 68Ge solutions prepared and calibrated in 2007 and 2011 to evaluate the suitability of the specific composition as a potential Standard Reference Material. Massic count rates of the stored

Low-Ohmic Resistance Comparison: Measurement Capabilities and Resistor Traveling Behavior

March 1, 2016
Author(s)
Marlin E. Kraft, Randolph E. Elmquist, Gert Rietveld, Jan van der Beek, Alessandro Mortara, Beat Jeckelmann
The low-ohmic resistance measurement capabilities of the Van Swinden Laboratorium, National Institute of Standards and Technology, and the Federal Office of Metrology (METAS) were compared using a set of resistors with values 100 mΩ, 10 mΩ, 1 mΩ, and 100

Method Validation and Standards in Hydrogen/Deuterium Exchange Mass Spectrometry

March 1, 2016
Author(s)
Jeffrey W. Hudgens, Richard Y. Huang, Emma D'Ambro
The chapter examines method validation and measurement standards for measuring protein dynamics by hydrogen/deuterium exchange mass spectrometry. Topics examined include the rationale for a reference measurement system for HDX-MS, attaining high accuracy

Multifocus microscopy with precise color multi-phase diffractive optics applied in functional neuronal imaging

March 1, 2016
Author(s)
Sara Abrahamsson, Robert Ilic, Jan Wisniewski, Brian Mehl, Liya Yu, Lei Chen, Marcelo I. Davanco, Laura Oudjedi, Jean Bernard Fiche, Bassam Hajj, Xin Jin, Joan Pulupa, Christine Cho, Mustafa Mir, Mohamed El Beheiry, Xavier Darzacq, Marcelo Nollmann, Maxime Dahan, Carl Wu, Timothee Lionnett, James Alexander Liddle, Cornelia Bargmann
Multifocus microscopy (MFM) allows high-resolution instantaneous three-dimensional (3D) imaging and has been applied to study biological specimens ranging from single molecules inside cell nuclei to entire embryos. In any live microscopy application

Outlook and Challenges for Hydrogen Storage in Nanoporous Materials

March 1, 2016
Author(s)
D. P. Broom, C. J. Webb, K. E. Hurst, P. A. Parilla, T. Gennett, Craig Brown, R. Zacharia, E. Tylianakis, E. Klontzas, G. E. Froudakis, Th. A. Steriotis, P. N. Trikalitis, D. L. Anton, B. Hardy, D. Tamburello, C. Corgnale, B. A. van Hassel, D. Cossement, R. Chahine, M. Hirscher
Considerable progress has been made recently in the use of Nanoporous materials for hydrogen storage. In this article, the current status of the field and future challenges are discussed, ranging from important open fundamental questions, such as the

Perspective: Probing 2-D Magnetic Structures in a 3-D World

March 1, 2016
Author(s)
Alexander J. Grutter
Magnetic interfaces have been identified as promising systems upon which to base next-generation spintronic devices. In these nearly two-dimensional systems, deviations from bulk electronic structure and competition between nearly degenerate magnetic

Quasiparticle-Continuum Level Repulsion in a Quantum Magnet

March 1, 2016
Author(s)
K. W. Plumb, Kyusung Hwang, Yiming Qiu, Leland Harriger, G. E. Granroth, Alexander I. Kolesnikov, G. J. Shu, F. C. Chou, Ch. Ruegg, Yong Baek Kim, Young-June Kim
When the energy eigenvalues of two coupled quantum states approach each other in a certain parameter space, their energy levels repel each other and level crossing is avoided. Such level repulsion, or avoided level crossing, is commonly used to describe

Recommended Protocols for Round Robin Studies in Additive Manufacturing

March 1, 2016
Author(s)
Shawn P. Moylan, Christopher U. Brown, John A. Slotwinski
One way to improve confidence and encourage proliferation of additive manufacturing (AM) technologies and parts is by generating more high quality performance data. Many in the AM community see round robin studies as a way to generate large data sets while
Displaying 16476 - 16500 of 73697
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