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Search Publications

NIST Authors in Bold

Displaying 10501 - 10525 of 73697

Nonlinear Response of Silicon Solar Cells

January 1, 2019
Author(s)
Behrang H. Hamadani, Andrew M. Shore, Howard W. Yoon, Mark Campanelli
We used an LED-array-based combinatorial flux addition method to explore the wavelength and the intensity-dependence of the spectral responsivity in silicon solar cells. Many types of silicon cells, whether mono- or multi-crystalline type, exhibit notable

On the use of time-resolved 3D diagnostics to characterize firebrand showers in the WUI

January 1, 2019
Author(s)
Nicolas Bouvet, Eric D. Link, Stephen A. Fink, Erica D. Kuligowski
NIST is currently developing a time-resolved, three-dimensional particle tracking and sizing diagnostic (a.k.a an “emberometer”) that will be applied to airborne firebrands during wildland- urban interface fires. The present paper provides an overview of

Properties of Ice and Supercooled Water

January 1, 2019
Author(s)
Allan H. Harvey
This is an update to an existing table in the CRC Handbook of Chemistry and Physics, updating to the latest IAPWS recommendation for thermodynamic properties of supercooled water.

Properties of Saturated Liquid D2O

January 1, 2019
Author(s)
Allan H. Harvey
Update of existing table in CRC Handbook, reflecting new IAPWS equation of state for heavy water.

Simulation of TTT curves for additively manufactured Inconel 625

January 1, 2019
Author(s)
Carelyn E. Campbell, Greta Lindwall, Eric Lass, Fan Zhang, Mark R. Stoudt, Andrew J. Allen, Lyle E. Levine
The ability to use common computational thermodynamic and kinetic tools to study the microstructure evolution in Inconel 625 (IN625) manufactured using the additive manufacturing (AM) technique of laser powder-bed fusion is evaluated. Solidification

Transformation of Engineered Nanomaterials through the Prism of Silver Sulfidation

January 1, 2019
Author(s)
Fan Zhang, Andrew J. Allen, Aaron C. Johnston-Peck, Jingyu Liu, John M. Pettibone
Structure transformation of engineered nanomaterials (ENMs) often dictates their efficacy, safety, and environmental impact. To address the existing significant knowledge gap regarding the fundamental kinetic rate and extent of ENMs transformation in

Chip-scale atomic diffractive optical elements

December 31, 2018
Author(s)
Liron Stern, Douglas G. Bopp, Susan A. Schima, Vincent N. Maurice, John E. Kitching
Atomic systems have long provided a useful material platform with unique quantum properties. The efficient light-matter interaction in atomic vapors has led to numerous seminal scientific achievements including accurate and precise metrology 1-3 and

Hydrofluorocarbons (HFCs)

December 31, 2018
Author(s)
Vladimir L. Orkin, Stephen A. Montzka, Guus J. Velders, Paul B. Krummel, Malte Meinshausen, J. Muhle, Sunyoung Park

Improving Rigid-Body Registration Based on Points Affected by Bias and Noise

December 31, 2018
Author(s)
Marek Franaszek, Geraldine S. Cheok
The task of registering two coordinate frames is frequently accomplished by measuring the same set of points in both frames. Noise and possible bias in the measured locations degrade the quality of registration. It was shown that the performance of

Near-Surface Elemental Analysis of Solids by Neutron Depth Profiling

December 31, 2018
Author(s)
Jamie Weaver, Robert Gregory Downing
Neutron Depth Profiling (NDP) is an analytical nuclear technique for the determination of elemental mass as a function of depth into a sample's surface. It is suitable for characterizing a few select elements in most solid materials to depths of

Boehmite and Gibbsite Nanoplates for the Synthesis of Advanced Alumina Products

December 28, 2018
Author(s)
Xin Zhang, Patricia L. Huestis, Carolyn I. Pearce, Jian Zhi Hu, Katharine Page, Lawrence M Anovitz, Alexandr B. Aleksandrov, Micah P. Prange, Sebastien Kerisit, Mark E. Bowden, Wenwen Cui, Zheming Wang, Nicholas R. Jaegers, Trent R. Graham, Mateusz Dembowski, Hsiu-Wen Wang, Jue Liu, Alpha T. N'Diaye, Markus Bleuel, David F. Mildner, Thomas M. Orlando, Greg A. Kimmel, Jay A. La Verne, Sue B. Clark, Kevin M. Rosso
Boehmite (γ-AlOOH) and gibbsite (α-A;(OH) 3) are important archetype (oxy)hydroxides of aluminum in nature that also play diverse roles across a plethora of industrial applications. As a consequence, highly precise synthesis of these pure phases with

Frequently Asked Questions About Commercial Hydrogen Vehicle Refueling

December 28, 2018
Author(s)
Juana S. Williams
"Commonly asked questions about hydrogen fuel cell electric vehicles (HFCEV) and hydrogen fuel availability, technology, safety; and the legal metrology requirements and terminology applicable to hydrogen fuel quality, measuring equipment, method of sale

Microwave Monitoring of Atmospheric Corrosion of Interconnects

December 28, 2018
Author(s)
Papa Amoah, Dmitry Veksler, Christopher E. Sunday, Stephane Moreau, David Bouchu, Yaw S. Obeng
Traditional metrology has been unable to adequately address the reliability needs of emerging integrated circuits at the nano scale; thus, new metrology and techniques are needed. In this paper, we use microwave propagation characteristics (insertion

Nondegenerate Parametric Resonance in Large Ensembles of Coupled Micromechanical Cantilevers with Varying Natural Frequencies

December 28, 2018
Author(s)
Christopher B. Wallin, Roberto De Alba, Daron Westly, Glenn Holland, Scott Grutzik, Richard Rand, Alan Zehnder, Vladimir Aksyuk, Slava Krylov, Robert Ilic
We investigate the collective dynamics and nondegenerate parametric resonance (NPR) of coplanar, interdigitated arrays of microcantilevers distinguished by their cantilevers having linearly expanding lengths and thus varying natural frequencies. Within a
Displaying 10501 - 10525 of 73697
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