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.
Kathryn E. Keenan, Sheye O. Aliu, Lisa J. Wilmes, David C. Newitt, Ella F. Jones, Wen Li, Michael A. Boss, Karl F. Stupic, Stephen E. Russek, Nola M. Hylton
Purpose: To assess the ability of a recent, anatomically designed breast phantom incorporating T 1 and diffusion elements to serve as a quality control device...
Sebastian Engmann, Felicia A. Bokel, Hyun W. Ro, Dean M. DeLongchamp, Lee J. Richter
We present a method to study the structural evolution of organic bulk-heterojunctions via real-time, in-situ, steady state photoluminescence (PL). In-situ PL...
D. M. Liu, Z. L. Zhang, S. L. Zhou, Qingzhen Huang, X. J. Deng, M. Yue, C. X. Liu, J. X. Zhang, Jeffrey W. Lynn
Magnetocaloric materials can be useful in magnetic refrigeration applications, but to be practical the magnetorefrigerant needs to have a very large...
The development of surrogate fuels with measured and predicted thermophysical properties similar to their authentic refinery stream counterparts is critical for...
Carlos A. Castaneda, Apurva Chaturvedi, Christina M. Camara, Joseph E. Curtis, Susan T. Krueger, David Fushman
Polyubiquitination is a critical protein post-translational modification involved in a variety of processes in eukaryotic cells. The molecular basis for...
Successful design of materials and manufacturing processes requires the availability of reliable materials data. Commercial alloys usually contain a large...
Lee J. Richter, Hyunbok Lee, Christopher McNeil, Eliot Gann, Lars Thomsen, S. Park, J. Jeong, Z. A. Page, Egle Puodziukynaite, Todd Emrick, Alejandro Briseno, John C. Stephenson, Dean M. DeLongchamp
Market demand for ubiquitous, increased functionality products at low cost (the internet of things) is spurring development in additive, solution processing of...
Harshita Kumari, Steven R. Kline, Stuart R. Kennedy, Christopher Garvey, Colin L. Raston, Jerry L. Atwood, Jonathan W. Steed
Vortex fluidic mediated shearing of supramolecular gels in thin films leads to complete disruption of fluorous bis-urea derived gels. Hydrocarbon analogues...
Prakash Koirala, Jian Li, Heayoung Yoon, Puruswottam Aryal, Sylvain Marsillac, Angus R. Rockett, Nikolas Podraza, Robert W. Collins
Polycrystalline CdS/CdTe thin-film solar cells in the superstrate configuration have been studied by spectroscopic ellipsometry (SE) using glass side...
Many objects in nature prefer to spiral in one particular direction to the other. A nanostructured magnetic system with strong spin-orbit coupling now shows...
Alexander J. Grutter, Dustin A. Gilbert, U. S. Alaan, E. Arenholz, Brian B. Maranville, Julie A. Borchers, Y. Suzuki, Kai Liu, Brian J. Kirby
We demonstrate reversible control of magnetization and anisotropy in La 0.67Sr 0.33MnO 3 films through interfacial oxygen migration. Gd metal capping layers...
Nicholas E. Sharp, John D. Fassett, David S. Simons
Secondary ion mass spectrometry (SIMS) plays an important role in nuclear forensics through its ability to identify isotopic ratios of particles accurately and...
Daniel B. Gopman, June W. Lau, Kotekar P. Mohanchandra, Kyle Wetzlar, Greg Carman
We present measurements of the exchange stiffness D and the exchange constant A of a sputtered 80 nm Tb0.3Dy0.7Fe2 film. Using a broadband ferromagnetic...
Leonid A. Bendersky, Haoting Shen, Kwo-hsiung Young
The microstructures of three Laves phase-related body-center-cubic (bcc) solid solution metal hydride alloys with different phase abundances were closely...
The symposium was titled Multicomponent Alloy Metallurgy: Bridge from Materials Science to Materials Engineering with focus on the physical metallurgy of...
K. Zhang, X.J. Feng, Keith A. Gillis, Michael R. Moldover, Jintao Zhang, Hong Lin, Jifeng Qu
Relative primary acoustic gas thermometry determines the ratios of thermodynamic temperatures from measured ratios of acoustic and microwave resonance...
Tian Zhang, Brian Simonds, Keita Nomoto, Binesh Puthen Veettil, Ziyun Lin, Ivan Perez Wurfl, Gavin Conibeer
We demonstrate that a pulsed KrF excimer laser (λ=248 nm, τ=22 ns) can be used as a post-furnace annealing method to greatly increase the electrically active...
Eugene Paulechka, Andrey V. Blokhin, Ana Rodriguez, Marisa A. Rocha, Luis M.N.B.F. Santos
The heat capacities in the temperature range (5 to 370) K and the parameters of solid-phase phase transitions and fusion were determined for three [Cnmim][NTf2]...
Nathan E. Flowers-Jacobs, Anna E. Fox, Paul D. Dresselhaus, Robert E. Schwall, Samuel P. Benz
The root-mean-square (rms) output voltage of the NIST Josephson arbitrary waveform synthesizer (JAWS) has been doubled from 1 V to a record 2 V by combining two...
Dmitry A. Ruzmetov, Kehao Zhang, Gheorghe Stan, Berc Kalanyan, Ganesh R. Bhimanapati, Sarah M. Eichfeld, R A. Burke, Pankaj B. Shah, Terrance P. O'Regan, Frank J. Crowne, A. Glen Birdwell, Joshua A. Robinson, Albert Davydov, Tony G. Ivanov
When designing semiconductor heterostructures, it is expected that epitaxial alignment will facilitate low-defect interfaces and efficient vertical transport...
Thomas J. Bruno, Jessica L. Burger, Tara M. Lovestead
Analysis of fuel gas (such as natural gas) for compounds with more than 6 carbon atoms (the C6+ fraction) has historically been technically complex and...
Lisa Y. Choe, Chao Zhang, William E. Luecke, John L. Gross, Amit Varma
Finite-element (FE) analysis was used to compare the high-temperature responses of steel columns with two different stressstrain models: the Eurocode 3 model...
George C. Rhoderick, Duane Kitzis, Michael E. Kelley, Walter R. Miller Jr., Bradley Hall, Edward Dlugokencky, Pieter Tans, Antonio M. Possolo, Jennifer Carney
The National Institute of Standards and Technology (NIST) recently began to develop standard mixtures of greenhouse gases as part of a broad program mandated by...
Lawrence Henry Friedman, Mark D. Vaudin, Stephan J. Stranick, Gheorghe Stan, Yvonne B. Gerbig, William Alexander Osborn, Robert F. Cook
The accuracy of electron backscattered diffraction (EBSD) and confocal Raman microscopy (CRM) for small-scale strain mapping are assessed using the multi-axial...
Bhaven Mehta, Kurt D. Benkstein, Stephen Semancik, Mona E. Zaghloul
The motivation behind this work is to study the gas phase chemical sensing characteristics of optical (plasmonic) nano antennas (ONA) and graphene/graphene...
Wojtek J. Tutak, Carl Simon Jr., Jyotsnendu J. Giri, Peter Bajcsy
Recent work has shown that osteoprogenitor cell culture on nanofiber scaffolds can promote differentiation. This response may be driven by changes in cell...
Jose M. Ortiz, Tam H. Duong, Allen R. Hefner Jr., Jih-Sheng Lai
A multi-scale electro-thermal simulation approach is presented to optimize the design of a hybrid switch soft-switching inverter using a library of dynamic...
Paul A. Williams, Joshua A. Hadler, Frank C. Maring, Robert Lee, Kyle A. Rogers, Brian J. Simonds, Matthew T. Spidell, Ari D. Feldman, John H. Lehman
We describe a unique optical power meter which measures the radiation pressure to accurately determine a lasers optical power output. This approach traces its...