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Search Publications

NIST Authors in Bold

Displaying 12851 - 12875 of 73697

Certification of SRM 2493:Standard Reference Mortar for Rheological Measurements

October 4, 2017
Author(s)
Alex Olivas, Chiara C. Ferraris, Nicos Martys, Edward Garboczi, Blaza Toman, William L. George
Rheological measurements are often performed using a rotational rheometer. In this type of rheometer, the tested fluid is sheared between two surfaces, one of which acts as the rotating surface [1]. Usually, the rotational velocity is imposed and the

Determination of the True Lateral Grain Size in Organic-Inorganic Halide Perovskite Thin Films

October 4, 2017
Author(s)
Gordon A. MacDonald, Chelsea Heveran, Mengjin Yang, David Moore, Kai Zhu, Virginia L. Ferguson, Jason Killgore, Frank W. DelRio
In this letter, methylammonium lead iodide (MAPbI3) thin films were examined via piezoresponse force microscopy (PFM) and nanoindentation (NI) to determine if long range atomic order existed across the full width of the apparent grains. From the PFM, the

Hydrogels with Reversible Mechanics to Probe Dynamic Cell Microenvironments

October 4, 2017
Author(s)
Adrianne Rosales, Sebastain Vega, Frank W. DelRio, Jason Burdick, Kristi S. Anseth
The relationship between ECM mechanics and cell behavior is dynamic, as cells remodel and respond to changes in their local environment. Most in vitro substrates are static and supraphysiologically stiff; thus, platforms with dynamic and reversible

MRI Birdcage RF Coil Resonance with Uncertainty and Relative Error Convergence Rates

October 4, 2017
Author(s)
Jeffrey T. Fong, Nathanael A. Heckert, James J. Filliben, Pedro V. Marcal, Robert Rainsberger, Karl F. Stupic, Stephen E. Russek
In a magnetic resonance imaging (MRI) system, it is necessary to excite the nuclei of a patient into coherent precession for imaging. This requires a coupling between the nuclei and a source of radio frequency (RF) power using a transmitter. To receive a

Quantitative Magnetic Resonance Imaging Phantoms: A Review and the Need for a System Phantom

October 4, 2017
Author(s)
Kathryn E. Keenan, Maureen Ainslie, Alexander J. Barker, Michael A. Boss, Kim M. Cecil, Cecil Charles, Thomas L. Chenevert, Laurence Clarke, Jeffrey L. Evelhoch, Paul Finn, Guoying Liu, Stephen E. Russek, Karl F. Stupic, Joshua D. Trzasko, Chun Yuan, Jie Zheng
The MRI community is using quantitative mapping techniques to complement qualitative imaging. For quantitative imaging to reach its full potential, it is necessary to analyze measurements across systems and longitudinally. Clinical use of quantitative

Electronic and Chemical Structure of 2D materials

October 3, 2017
Author(s)
Sujitra Pookpanratana
The drive to produce smaller, faster, lower power electronic components for computing is pushing the semiconductor industry to nanometer-scale device structures. Atomically thin two-dimensional (2D) materials such as transitional metal dichalcogenides

Redressing grievances with the treatment of dimensionless quantities in SI

October 3, 2017
Author(s)
David W. Flater
The International System of Units (SI) and its associated methods adhere to a design principle in which all kinds of quantities are described in terms of a standard set of dimensions. It is a corollary of that principle that quantities having no extent in

Tools for annotation and comparison of structural variation

October 3, 2017
Author(s)
Justin M. Zook, Fritz Sedlazeck, Andi Dhroso, Justin Paschall
The impact of structural variants (SVs) on a variety of organisms and diseases like cancer has become increasingly evident. Methods for SV detection when studying genomic differences across cells, individuals or populations are being actively developed

All-silicon light-emitting diodes waveguide-integrated with superconducting single-photon detectors

October 2, 2017
Author(s)
Sonia M. Buckley, Jeffrey T. Chiles, Adam N. McCaughan, Galan Moody, Kevin L. Silverman, Martin J. Stevens, Richard P. Mirin, Sae Woo Nam, Jeffrey M. Shainline
An on-chip, silicon-compatible light source has long been pursued for telecommunications, with limited success. However, for integrated systems utilizing superconducting detectors, cryogenic operation is already required. This allows these systems to

Compressed Volume Rendering using Deep Learning

October 2, 2017
Author(s)
Wesley N. Griffin, Afzal A. Godil, Jeffrey W. Bullard, Judith E. Terrill, Amitabh Varshney, Somay Jain
Scientific simulations often generate large amounts of multivariate time varying volumetric data. Visualizing these volumes is essential for understanding the underlying scientific processes which generate this data. In this paper, we present a method to

Latent Porosity in Alkali-Metal M 2 B 12 F 12 Salts: Structures and Rapid Room-Temperature Hydration/Dehydration Cycles

October 2, 2017
Author(s)
Dmitry V. Peryshkov, Eric V. Bukovsky, Matthew R. Lacroix, Hui Wu, Wei Zhou, W. Matthew Jones, Matic Lozinsek, Travis C. Folsom, D. Luke Heyliger, Terrence J. Udovic, Steven H. Strauss
Structures of the alkali metal hydrates Li 2(H 2O) 4Z, LiK(H 2O) 4, Na 2(H 2O) 3Z, and Rb 2(H 2O) 2Z, unit cell parameters for Rb 2Z and Rb 2(H 2O) 2Z, and the DFT-optimized structures of K 2Z, K 2(H 2O) 2Z, Rb 2Z, Rb 2(H 2O) 2Z, Cs 2Z, and Cs 2(H 2O)Z are

Lets truly add systems to industrial engineering

October 2, 2017
Author(s)
Timothy A. Sprock, Leon McGinnis
The ISE community can provide leadership in the design and decision-making required to support the scale, complexity and degree of automation expected of modern ISE systems, but only by adapting our legacy knowledge and tools to the required systems

Quantifying Thermophoretic Deposition of Soot on Surfaces

October 2, 2017
Author(s)
Amy E. Mensch, Thomas G. Cleary
Quantitative data on deposition of soot agglomerate particles in the literature is needed to advance fire forensic analysis as well as fire model predictions of visibility and detector activation. This paper provides direct measurements of thermophoretic

Report for Dedicated JPSS VIIRS Ocean Color Calibration/Validation Cruise October 2016

October 2, 2017
Author(s)
Michael Ondrusek, Veronica P. Lance, Menghua Wang, Charles Kovach, Wesley Goode, Alex Gilerson, Sam Ahmed, Ahmed El-Habashi, Robert Foster, Matteo Ottaviani, Joaquim I. Goes, Helga de Rosario Gomes, Kali McKee, Joo Won Kang, Chuanmin Hu, Jennifer Cannizzaro, Shaojie Sun, David English, B. Carol Johnson, Zhongping Lee, Junfang Lin, Nicholas Tufillaro, Ivan Lalovic, Jasmine Nahorniak, Curtiss Davis, Mike Twardowski, Nicole Stockley, Kenneth Voss
The overall aim of the annual National Oceanic and Atmospheric Administration (NOAA) dedicated Joint Polar Satellite System (JPSS) Visible Infrared Imaging Radiometer Suite (VIIRS) ocean color calibration/validation (cal/val) cruises is to support

Thermodynamic re-assessment of the Co-Al-W system

October 2, 2017
Author(s)
Peisheng Wang, Wei Xiong, Ursula R. Kattner, Carelyn E. Campbell, Eric Lass, Oleg Y. Kontsevoi, Gregory B. Olson
The Co-Al-W system and its binary sub-systems Al-Co, Al-W and Co-W were critically reviewed. The thermodynamic description of the Co-Al-W system including all three binaries was developed considering thermodynamic and constitutional data of the systems
Displaying 12851 - 12875 of 73697
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