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Search Publications

NIST Authors in Bold

Displaying 2226 - 2250 of 74178

ZnO fin optical cavities

June 16, 2022
Author(s)
Babak Nikoobakht, Amit Agrawal, Scott A. Wight, Jonathan Lee, Michael Shur
Nanostructured semiconductors have shown great promise toward miniaturization of electrically driven semiconductor lasers. Previously, we reported on an electrically driven sub-micron size ZnO-GaN fin LED architecture that at high current densities showed

Engineering 3D Printed Scaffolds with Tunable Hydroxyapatite

June 15, 2022
Author(s)
Yoontae Kim, Eun Jin Lee, Anthony Kotula, Shozo Takagi, Laurence C. Chow, Styliani Alimperti
Bone grafting is a surgical procedure to bone repair due to trauma or diseases in the craniofacial and dental area. Current limitations of autogenous and allogeneic grafts are often associated with reduced host-graft integration due to geometrical confor

Robust spin relaxometry with fast adaptive Bayesian estimation

June 15, 2022
Author(s)
Michael Caouette-Mansour, Adrian Solyom, Brandon Ruffolo, Robert D. McMichael, Jack Childress (Sankey), Lilian Childress
Spin relaxometry with nitrogen-vacancy (NV) centers in diamond offers a spectrally selective, atomically localized, and calibrated measurement of microwave-frequency magnetic noise, presenting a versatile probe for condensed matter and biological systems

Survey of Plumbing Professionals Attending 2021 ASPE Technical Symposium

June 15, 2022
Author(s)
Toritseju Omaghomi, Natascha S. Milesi-Ferretti, Gary Klein, Steven Buchberger
At the 2021 ASPE Technical Symposium held last September in San Diego, four experts convened a panel session to discuss the next steps in the evolution of the WDC to estimate peak water demands. The panel session, entitled "Extending the Water Demand

Turning Molecular Springs into Nano-Shock Absorbers: The Effect of Macroscopic Morphology and Crystal Size on the Dynamic Hysteresis of Water Intrusion-Extrusion into-from Hydrophobic Nanopores

June 15, 2022
Author(s)
Pawel Zajdel, David Madden, Robin Babu, Diego Mirani, Nikolay Tsyrin, Luis Bartolome, Eder Amayuelas, David Fairen-Jimenez, Alexander Lowe, Miroslaw Chorazewski, Juscelino Leao, Craig Brown, Markus Bleuel, Victor Stoudenets, Maria Echeverria, Francisco Bonilla, Giulia Grancini, Simone Meloni, Yaroslav Grosu
Controlling the pressure at which liquids intrude (wet) and extrude (dry) into/from nanopore is of paramount importance for a broad range of applications, such as energy conversion, catalysis, chromatography, separation, ionic channels, and many more. To

ASHRAE's New Position Document on Indoor Carbon Dioxide

June 14, 2022
Author(s)
Andrew K. Persily, William Bahnfleth, Howard Kipen, Josephine Lau, Corinne Mandin, Chandra Sekhar, Pawel Wargocki, Lan Chi Nguyen Weekes
Indoor CO2 concentrations are often discussed in the context of ventilation and IAQ, most recently in relation to airborne infectious disease transmission. However, many applications of indoor CO2 measurements do not reflect a sound technical understanding

Indoor Carbon Dioxide Metric Analysis Tool

June 14, 2022
Author(s)
Andrew K. Persily, Brian Polidoro
Indoor carbon dioxide has been used for decades to evaluate indoor air quality (IAQ) and ventilation. However, many applications of CO2 as an indicator or metric of IAQ or ventilation reflect a lack of understanding of the relationship between indoor CO2

Smart Cities and Communities: A Key Performance Indicators Framework

June 14, 2022
Author(s)
David A. Wollman, Edward Griffor, Chris Greer, Michael Dunaway, Martin Serrano, Martin Burns, Sokwoo Rhee
This publication presents research findings and scientific work that advance the development and progression of smart city and community measurement methodology. The term 'smart,' as used in the phrase 'smart cities,' is defined here as the efficient use

Effect of Iron Vacancies on Magnetic Order and Spin Dynamics of the Spin Ladder BaFe 2-d S 1.5 Se 1.5

June 13, 2022
Author(s)
Zengjia Liu, Xiao-Sheng Ni, Lisi Li, Hualei Sun, Feixiang Liang, Benjamin Frandsen, Andrew D. Christianson, Clarina dela Cruz, Zhijun Xu, Dao-Xin Yao, Jeffrey Lynn, Robert J. Birgeneau, Kun Cao, Meng Wang
Quasi-one-dimensional iron chalcogenides possess various magnetic states depending on the lattice distortion, electronic correlations, and presence of defects. We present neutron diffraction and inelastic neutron scattering experiments on the spin ladder

In-situ studies of the swelling by electrolyte in the electrochemical doping of an ethylene glycol substituted polythiophene

June 13, 2022
Author(s)
Lee J. Richter, Lucas Flagg, Lauren Asselta, Nicholas D'Antona, Natalie Stingelin, Tommaso Nicolini, Jonathan Onorato, Christine Luscombe, Ruipeng Li
Organic mixed ionic electronic conductors (OMIECs) have the potential to enable diverse new technologies, ranging from biosensors to flexible energy storage devices and neuromorphic computing platforms. However, study of these materials in their operating

Ordered t-way Combinations for Testing State-based Systems

June 13, 2022
Author(s)
D. Richard Kuhn, M S Raunak, Raghu N. Kacker
Fault detection often depends on the specific order of inputs that establish states which eventually lead to a failure. However, beyond basic structural coverage metrics, it is often difficult to determine if code has been exercised sufficiently to ensure

Using CO2 as a Ventilation Clue in Classrooms

June 13, 2022
Author(s)
Dustin Poppendieck
In the era of COVID19, we need to quickly find and fix classrooms that have inadequate ventilation to reduce long-range airborne transmission of diseases. Historically, the limited available data has shown classrooms in the United States to be under

Visualization Ecology Applications for Measurement Science: A Visualization Gap Approach

June 13, 2022
Author(s)
Simon Su, William Sherman, Steven G. Satterfield, Terence J. Griffin, William L. George, Sandy Ressler, Shaw C. Feng, Judith E. Terrill
Advanced visualization research have remained insufficiently included in science and engineering workflows due to the highly specialized task-specific requirements and lack of suitable applications. Although the field of visualization is maturing and

Revealing the Symmetry of Materials through Neutron Diffraction

June 12, 2022
Author(s)
William D. Ratcliff
Magnetic materials are used in many devices in everyday life. To control their properties, we must first understand how they are ordered. This can be accomplished through neutron diffraction measurements. However, in many cases, there are too many

New Constraints on Dark Photon Dark Matter with Superconducting Nanowire Detectors in an Optical Haloscope

June 10, 2022
Author(s)
Jeff Chiles, Ilya Charaev, Asimina Arvanitaki, Masha Baryakhtar, junwu huang, Robert Lasenby, Ken Van Tillburg, Alexana Roshko, George Burton, Marco Colangelo, Sae Woo Nam, Karl Berggren
Uncovering the nature of dark matter is one of the most important goals of particle physics. Light bosonic particles, such as the dark photon, are well-motivated candidates: they are generically long-lived, weakly-interacting, and naturally produced in the
Displaying 2226 - 2250 of 74178