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NIST Authors in Bold

Displaying 11626 - 11650 of 73751

Point-of-Use, Nonexclusive, High-Power Laser Power Meter

June 19, 2018
Author(s)
Aly Artusio-Glimpse, Ivan Ryger, Paul A. Williams, John H. Lehman
We have developed a small-package, high-power laser power meter that directly measures radiation pressure on a high-reflectivity mirror for nonexclusive, in situ laser measurements without pick- off schemes. Furthermore, our non-inertial design inhibits

Design of an Octo-Strain Specimen for Biaxial Tension Testing

June 18, 2018
Author(s)
Justin L Milner, Thomas H. Gnaupel-Herold
A custom biaxial testing fixture was designed to evaluate a new specimen geometry for complex loading paths. Biaxial testing is commonly used to evaluate work-hardening behavior of sheet metal in biaxial tension to study the accumulation of plastic strains

First Direct Experimental Studies of Hf0.5Zr0.5O2 Ferroelectric Polarization Switching Down to 100-picosecond in Sub-60mV/dec Germanium Ferroelectric Nanowire FETs

June 18, 2018
Author(s)
Wonil Chung, Mengwei Si, Pragya Shrestha, Jason Campbell, Kin P. Cheung, Peide Ye
In this work, ultrafast pulses with pulse widths ranging from 100 ps to seconds were applied on the gate of Ge ferroelectric (FE) nanowire (NW) pFETs with FE Hf0.5Zr0.5O2 (HZO) gate dielectric exhibiting steep subthreshold slope (SS) below 60 mV/dec bi

C3a receptor antagonism as a novel therapeutic target for chronic rhinosinusitis

June 15, 2018
Author(s)
Jennifer K. Mulligan, Tucker Williamson, Nicholas Reaves, William Carroll, Sarah Stephenson, Peng Gao, Richard R. Drake, Ben Neely, Rodney J. Schlosser, Carl Atkinson
Background: Innate immune factors, including the complement system, have been implicated in the pathogenesis of chronic rhinosinusitis with nasal polyps (CRSwNP). Here we examine complement activity within the respiratory mucosa of CRSwNP patients, and a

Design and Implementation of pyPRISM: A Polymer Liquid-State Theory Framework

June 15, 2018
Author(s)
Tyler B. Martin, Thomas E. Gartner, Ronald L. Jones, Chad R. Snyder, Arthi Jayaraman
Polymer Reference Interaction Site Model (PRISM) theory describes the equilibrium spatial- correlations, thermodynamics, and structure of liquid- like polymer systems and macromolecular materials. Here, we describe the code structure, implementation, and

Effect of Heat Treatment on the Microstructural Evolution of a Nickel-Based Superalloy Additive-Manufactured by Powder Bed Fusion Laser Sintering

June 15, 2018
Author(s)
Fan Zhang, Lyle E. Levine, Andrew J. Allen, Mark R. Stoudt, Greta Lindwall, Eric Lass, Maureen E. Williams, Yaakov S. Idell, Carelyn E. Campbell
Elemental segregation is a ubiquitous phenomenon in additive-manufactured (AM) parts due to solute rejection and redistribution during the rapid solidification process. Using electron microscopy, in situ synchrotron X-ray scattering and diffraction, and

Model-based Cosimulation for Industrial Wireless Networks

June 15, 2018
Author(s)
Ging Jeng, Honglei Li, Yanzhou Liu, Yongkang Liu, Mohamed Hany, Rick Candell, Shuvra Bhattacharyya
Wireless communications technology has the potential to provide major benefits in lowering the cost and increasing the efficiency of factory automation (FA) systems. However, design of FA systems that employ wireless networks involves stringent constraints

Phase Field Benchmark Problems for Dendritic Growth and Linear Elasticity

June 15, 2018
Author(s)
Andrea Jokisaari, P W. Voorhees, Jonathan E. Guyer, James A. Warren, O. G. Heinonen
We present the second set of benchmark problems for phase field models that are being jointly developed by the Center for Hierarchical Design (CHiMaD) and the National Insti- tute of Standards and Technology (NIST) along with input from other members in

Revision of IEEE Std C37.238, Power Profile for IEEE-1588: Why The Big Changes?

June 15, 2018
Author(s)
Mark Adamiak, Galina Antonova, A. Apostolov, H. Kirrmann, F. Becker, J. Bougie, C. Brunner, W. Dickerson, M. Dood, D. Giarratano, R. Graf, H. Falk, C. Huntley, D. Ingram, Ya-Shian Li-Baboud, K. Martin, R.J. Murphy, B. Muschlitz, M. Renz, G. Rzepka, V. Skendzic, T. Tibbals, B. Vandiver, S. Zimath
Revision and renewal of standards is normally a routine process. This paper describes why revision of the Institute of Electrical and Electronics Engineers (IEEE) C37.238 standard was anything but routine, the reasons why a new approach was needed, and the

3D printing using concrete extrusion: a roadmap for research

June 14, 2018
Author(s)
Scott Z. Jones, Richard Buswell, Wilson Leal de Silva, Justin Dirrenberger
Large-scale additive manufacturing processes for construction utilise computer controlled placement of extruded cement-based mortar to create physical objects layer-by-layer. Demonstrated applications include component manufacture and placement of in-situ

Accurate optical stabilization of a Kerr-microresonator frequency comb

June 14, 2018
Author(s)
Travis Briles, Jordan R. Stone, Tara E. Drake, Daryl T. Spencer, Connor D. Fredrick, Qing Li, Daron A. Westly, Bojan R. Ilic, Kartik A. Srinivasan, Scott A. Diddams, Scott B. Papp
Carrier-envelope-phase stabilization of optical waveforms enables exquisitely precise measurements by way of direct optical-frequency synthesis, coherent optical-to-microwave phase conversion, and control of ultrafast waveforms. We report such phase

Coexistence of Superconductivity and Short-Range Double-Stripe Spin Correlations in Te-Vapor Annealed FeTe 1-x Se x (X less than or equal to} 0.2)

June 14, 2018
Author(s)
Zhijun Xu, J. A. Schneeloch, Ming Yi, Yang Zhao, Masaaki Matsuda, D. M. Pajerowski, Songxue Chi, R. J. Birgeneau, Genda Gu, J. M. Tranquada, Guangyong Xu
In as-grown bulk crystals of Fe 1+yTe 1-xSe x with x less than or equal to} 0.3, excess Fe (y>0) is inevitable and correlates with a suppression of superconductivity. At the same time, there remains the question as to whether the character of the

Estimating Structural Seismic Retrofit Costs for Federal Buildings

June 14, 2018
Author(s)
Juan F. Fung, David T. Butry, Siamak Sattar, Steven L. McCabe
In NIST TN 1973 [1], we develop a methodology for estimating seismic retrofit costs. The general approach is to build a predictive model of seismic retrofit costs that (1) captures the essential factors that drive costs, such as building construction type
Displaying 11626 - 11650 of 73751
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