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Displaying 10051 - 10075 of 73751

Rattling Behavior in a Simple Perovskite NaWO 3

May 1, 2019
Author(s)
Yuya Ikeuchi, Hiroshi Takatsu, Cedric Tassel, Craig Brown, Taito Murakami, Yuki Matsumoto, Yoshihiko Okamoto, Hiroshi Kageyama
A high-pressure reaction has allowed the preparation of stoichiometric tungsten bronze NaWO 3 (Im-3). Specific heat (C ;/T 3 vs T) exhibits a round peak at 30 K, indicating anharmonic phonon modes associated with low-energy rattling vibrations. Structural

Reference Material 8634: Ethylene Tetrafluoroethylene for Particle Size Distribution and Morphology

May 1, 2019
Author(s)
Dean C. Ripple, Srivalli Telikepalli, Kristen L. Steffens, Michael J. Carrier, Christopher B. Montgomery, Nicholas W. Ritchie, John Lu
Reference Material (RM) 8634 is a NIST particle standard produced from abraded ethylene tetrafluoroethylene (ETFE), a chemically inert polymer, that will help standardize and allow more accurate monitoring of subvisible proteinaceous particles in

Towards a Process to Quantify the Hazard of Fire Protection Design Alternatives

May 1, 2019
Author(s)
Paul A. Reneke, Morgan Bruns, Stanley W. Gilbert, Chandler P. MacLaren, Richard D. Peacock, Thomas G. Cleary, David T. Butry
There are a variety of fire protection technologies that have the potential to improve life safety in residences including barrier fabrics for upholstered furniture, new nano-scaled flame retardants, or better fire detector technology. However, there is no

Bridging communities in the field of nanomedicine

April 30, 2019
Author(s)
Blanka Halamoda-Kenzaoui, Simon Baconnier, Thierry Bastogne, Didier Bazile, Patrick Boisseau, Gerrit Borchard, Sven E. Borgos, Luigi Calzolai, Karin Cederbrant, Gabriella di Felice, Tiziana Di Francesco, Marina Dobrovolskaia, Rog?rio Gaspar, Bel?n Gracia, Vincent A. Hackley, Lada Leyens, Neill Liptrott, Margriet Park, Anil Patri, Gert Roebben, Matthias Roesslein, Ren? Th?rmer, Patricia Urb?n L?pez, Val?rie Zuang, Susanne Bremer-Hoffmann
The workshop "Bridging communities in the field of nanomedicine" was hosted by the European Commission Joint Research Centre on 27-28 September 2017. It gathered experts from regulatory bodies, research institutions and industry to discuss the main

Fragmentation stimulates soil respiration in temperate forests

April 30, 2019
Author(s)
Ian Smith, Lucy Hutyra, Andrew Reinmann, jonathan thompson, David Allen
Forest fragmentation impacts carbon uptake and storage, however, the magnitude and direction of fragmentation impacts on soil respiration remain poorly characterized. We quantify soil respiration rates along edge-to-interior transects in two temperate

Large-Signal-Network-Analyzer Phase Calibration on an Arbitrary Grid

April 30, 2019
Author(s)
Aric Sanders, Dylan Williams, Joshua Kast, Kate Remley, Rob Horansky
We have developed a method for improving the synchronization of large-signal network analyzers and transferring "cross-frequency" phase calibrations from a calibrated sampling oscilloscope to the large-signal vector network analyzer on an arbitrary

Magnetic Order Effects on the Electronic Structure of KMMnSd2^ (M=Cu,Li) with the ThCr 2 Si 2 -Type Structure

April 30, 2019
Author(s)
Austin Virtue, Xiuquan Zhou, Brandon Wilfong, Jeffrey W. Lynn, Keith Taddei, Peter Zavalij, Limin Wang, Efrain E. Rodriguez
We propose three magnetic structures for KCuMnS^26 with the ThCr 2Si 2-type structure. Powder samples of KCuMnS 2 and KLiMnS 2 were prepared for structural studies and magnetization measurements. In both compounds, the Mn 2+ site is alloyed by either Cu +

X-ray computed tomography instrument performance evaluation: Detecting geometry errors using a calibrated artifact

April 30, 2019
Author(s)
Balasubramanian Muralikrishnan, Katharine M. Shilling, Steven D. Phillips, Wei Ren, Vincent D. Lee, Felix H. Kim, Gabriel Alberts, Valentina Aloisi
X-ray computed tomography (XCT) is uniquely suitable for non-destructive dimensional metrology of delicate or internal features generated from the additive manufacturing process. While XCT has long been used in medical imaging, it has only been used for

Application of the group contribution volume translated Peng-Robinson equation of state to new commercial refrigerant mixtures

April 29, 2019
Author(s)
Ian H. Bell, Jonathan Welliquet, Maria Mondejar, Sylvain Quoilin, Ala Bazyleva, Frederik Haglind
The search of new refrigerants complying with the most recent environmental regulations must be supported by the availability of simple and reliable models for the prediction of their thermophysical behavior, both as pure substances and as mixtures. Cubic

Assessing Fire-blocking Effectiveness of Barrier Fabrics in the Cone Calorimeter

April 29, 2019
Author(s)
Shonali Nazare, William M. Pitts, Mauro Zammarano, John R. Shields, Elizabeth Knowlton, Benito De Leon
Cone calorimetric experiments have been conducted on bare flexible polyurethane foam (FPUF) samples as well as FPUF covered with a variety of fire-blocking barrier fabrics (BFs) in order to characterize and rank BF effectiveness for improving the

Nanomechanics of cellulose deformation reveal molecular defects that facilitate natural deconstruction

April 29, 2019
Author(s)
Peter Ciesielski, Ryan Wagner, Vivek Bharadwaj, Jason Killgore, Ashutosh Mittal, Gregg Beckham, Stephen Decker, Michael Himmel, Michael Crowley
Technologies surrounding utilization and processing of cellulosic materials have been important to human society for millennia. As with many materials, achieving a molecular-level understanding of the formation, characteristics, and functionality of

A Synchrotron X-ray Micro-Spectroscopy Study of the Explosive Melt Glass Derived From the Trinity Nuclear Test

April 28, 2019
Author(s)
Bruce Ravel, Daniel E. Crean, Daniel J. Bailey, M. C. Stennett, Claire L. Corkhill, Ryan Tappero, N. C. Hyatt
Trinitite, the explosive melt glass derived from the Trinity nuclear test, is of interest as a model material for nuclear forensics investigation. However, there remains uncertainty as to the mechanism of trinitite formation. In this study, new insight is
Displaying 10051 - 10075 of 73751
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