An official website of the United States government
Here’s how you know
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
A measurement of a thermophysical property of water is made using items found in the author's home. Specifically, the ratio of the energy required to heat water...
Daniel D. Hickstein, Grace Kerber, David R. Carlson, Lin Chang, Daron A. Westly, Kartik A. Srinivasan, Abijith S. Kowligy, John Bowers, Scott A. Diddams, Scott B. Papp
Supercontinuum generation in on-chip waveguides is a versatile source of broadband light and the generated spectrum is determined by the phase-matching...
Richard A. Rouil, Wesley D. Garey, Camillo A. Gentile, Nada T. Golmie
Long Term Evolution (LTE)-based cellular networks are being deployed around the world to provide public safety with enhanced capabilities and access to...
Hua-Jun He, Erica V. Stein, Paul C. DeRose, Kenneth D. Cole
We compared different methods to measure the concentrations of nucleic acids using samples of human genomic DNA (cell line origin), and a synthetic DNA...
The kinetics of H atom addition to cyclopentene has been studied with a single pulse shock tube at temperatures of (863 to 1167 K) and pressures of (160 to 370)...
Small-angle scattering from two-phase isotropic systems requires the scattering invariant to determine the relative fractions of each phase in the material. For...
M Miral Dizdar, Koa Hosoki, Pawel Jaruga, Toshiko Itazawa, Erdem Coskun, Sanjiv Sur
Repair of oxidatively-induced DNA base lesions can stimulate innate and allergic airway inflammation. Specific allergenic extracts like ragweed pollen extract...
We use a combination of symmetry analysis and high-throughput density functional theory calculations to search for new ferroelectric materials. We use two...
Ross N. Andrews, Suresh Narayanan, Fan Zhang, Ivan Kuzmenko, Jan Ilavsky
X-ray photon correlation spectroscopy (XPCS) and dynamic light scattering (DLS) reveal dynamics by interference of coherent scattering, but X-rays permit...
Ross N. Andrews, Suresh Narayanan, Fan Zhang, Ivan Kuzmenko, Jan Ilavsky
X-ray photon correlation spectroscopy (XPCS), as an extension of dynamic light scattering (DLS) in the X-ray regime, detects temporal intensity fluctuations of...
Jeff Voas, D. Richard Kuhn, Celia Paulsen, Kim B. Schaffer
Just as yeast, flour, water, and salt are to bread, algorithms, data structures, operating systems, database design, compiler design, and programming languages...
Angelo Frascela, Arianna Brutti, Nicola Gessa, Piero De Sabbata, Cristiano Novelli, Martin Burns, Vatsal Bhatt, Raffaelle Ianniello, Linghao He
The current investments for smart infrastructure development in cities result in the proliferation of self-consistent and closed applications (often called...
Advanced Regenerative Manufacturing Institute (ARMI) The Department of Defense has announced an award of $80M to the non-profit Advanced Regenerative...
Jeremy S. Rubin, Eric L. Shirley, Zachary H. Levine
We have achieved significant acceleration of diffraction calculations in two different, though related contexts. In the first case, we consider Wolf's formula...
Haiyan Wang, Jessica Ettedgui, Jacob Fortater, Joseph W. Robertson, Joseph Reiner, Huisheng Zhang, Siping Chen, John J. Kasianowicz
Nanometer-scale pores have recently been developed for the detection, characterization, and quantitation of a wide range of analytes (e.g., ions, polymers...
Dmitriy Zusin, Phoebe Tengdin, Maithreyi Gopalakrishnan, Christian Gentry, Adam Blonsky, Michael Gerrity, Justin Shaw, Hans Nembach, Thomas J. Silva, Peter Oppeneer, Henry C. Kapteyn, Margaret M. Murnane
Marwa M. El-Sayed, Diana Ortiz-Montalvo, Christopher J. Hennigan
Isoprene oxidation produces water-soluble organic gases capable of partitioning to aerosol liquid water. The formation of secondary organic aerosols through...
Alexey Lipatov, Maxime Guinel, Dmitry S. Muratov, Vladislav O. Vanyushin, Peter Wilson, Andrei Kolmakov, Alexander Sinitskii
Elucidation of the structural transformations in graphene oxide (GO) upon reduction remains an active and important area of research. We report the results of...
A dimensional analysis was performed to correlate the fuel bed fire spread data previously reported in the literature. Under wind condition, six pertinent...
Aruna N. Ramanayaka, Hyun Soo Kim, Ke Tang, Xiqiao Wang, Richard M. Silver, Michael D. Stewart, Joshua M. Pomeroy
Using photolithographically defined implant wires for electrical connections, we demonstrate measurement of a scanning tunneling microscope (STM) patterned...
David B. Newell, Peter J. Mohr, Barry N. Taylor, Eite Tiesinga
Described in detail is the Committee on Data for Science and Technology (CODATA) special least- squares adjustment of the values of the fundamental constants...
Laura C. Sinclair, Hugo Bergeron, William C. Swann, Jean-Daniel Deschenes, Nathan R. Newbury
We demonstrate carrier-phase optical two-way time-frequency transfer (carrier-phase OTWTFT) across a turbulent air path. Through the two-way exchange of optical...
Jedidiah J. McCoy, Santosh K. Swain, David R. Diercks, Brian Gorman, Kelvin G. Lynn, John R. Sieber
Cadmium Telluride (CdTe) high purity, bulk crystals doped with phosphorus have been grown via vertical Bridgman melt growth technique to understand and improve...
Sergiy Tyukhtenko, Girija Rajarshi, Ioannis Karageorgos, Nikolai Zvonok, Elyssia S. Gallagher, Hongwei Huang, Kiran Vemuri, Jeffrey W. Hudgens, Alexandros Makriyannis
An understanding of how conformational dynamics modulates function and catalysis of human monoacylglycerol lipase (hMGL), an important pharmaceutical target...
Alexander V. Skripov, Roman V. Skoryunov, Alexei V. Soloninin, Olga A. Babanova, Vitalie Stavila, Terrence J. Udovic
Diammonium dodecahydro-closedidecabirate (NH 4) 2B 12H 12 is the ionic compound combining NH 4 + cations and [B 12H 12] 2- anions both of which can exhibit high...
Michael L. Schneider, Christine A. Donnelly, Stephen E. Russek, Burm Baek, Matthew R. Pufall, Peter F. Hopkins, Paul D. Dresselhaus, Samuel P. Benz, William H. Rippard
Neuromorphic computing is a promising avenue to dramatically improve the efficiency of certain computational tasks, such as perception and decision making...
Jeremy A. Marvel, Roger V. Bostelman, Joseph A. Falco
We present a survey of multi-robot assembly applications and methods, and describe trends and general insights into the multi-robot assembly problem for...