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Displaying 751 - 775 of 1005

The impact of COVID-19 on CO2 emissions in the Los Angeles and Washington DC/Baltimore metropolitan areas

June 7, 2021
Author(s)
Kimberly Mueller, Anna Karion, Sharon Gourdji, Israel Lopez Coto, James Whetstone, Vineet Yadav, Geoffrey Roest, Kevin R. Gurney, Kristal R. Verhulst, Jooil Kim, Michael Stock, Elizabeth DiGangi, Steve Prinzivalli, Ralph Keeling, R. F. Weiss, Charles E. Miller, Clayton Fain, Riley Duren, Subhomoy Ghosh
… by changes in gasoline fuel sales. In contrast, the March (17%) and April (34%) decreases in Los Angeles are only …

Characterization of waveguide-integrated single-photon detectors using integratedphotonic structures

February 18, 2021
Author(s)
Sonia M. Buckley, Alexander N. Tait, Jeffrey T. Chiles, Adam N. McCaughan, Saeed Khan, Richard Mirin, Sae Woo Nam, Jeffrey M. Shainline
We show several techniques for using integrated-photonic waveguide structures to simultaneously characterize multiple waveguide-integrated superconducting-nanowire detectors with a single fiber input. We demonstrate structures for direct comparison of

Graphene oxide/waterborne polyurethane nanocoatings: Effects of graphene oxide content on performance properties

January 15, 2020
Author(s)
David G. Goodwin, Coralie Bernard, Xiaohong Gu, Mat Celina, Marc R. Nyden, Deborah S. Jacobs, Li Piin Sung, Tinh Nguyen
… nanocoating formulated with four different GO loadings (0.4 % - 2.0 % by mass). The results show that GO sheets were … that of the moisture content for unfilled WPU (6.9 % ± 0.17 % vs 3.50 % ± 0.11 %). In summary, with the exception of …

Crystal Chemistry and X-ray Diffraction Patterns for Co(NixZn1-x)Nb4O12 (x=0.2, 0.4, 0.6, 0.8)

December 15, 2016
Author(s)
Winnie K. Wong-Ng, Guangyao Liu, James A. Kaduk
… cobalt-containing niobates, Co(NixZn1-x)Nb4O12 (x=0.2, 0.4, 0.6, 0.8). The Co(NixZn1-x)Nb4O12 series crystallize in … to 5.03673(11)Å, and V = 404.844(8) Å3 to V = 407.296(17) Å3 from x = 0.8 to x = 0.2, respectively. … Diffraction Patterns for Co(NixZn1-x)Nb4O12 (x=0.2, 0.4, 0.6, 0.8) …

Code-division-multiplexed readout of large arrays of TES microcalorimeters

September 15, 2016
Author(s)
Kelsey M. Morgan, Bradley K. Alpert, Douglas A. Bennett, William B. Doriese, Joseph W. Fowler, Johnathon D. Gard, Gene C. Hilton, Kent D. Irwin, Young Il Joe, Galen C. O'Neil, Carl D. Reintsema, Edward V. Denison, Daniel R. Schmidt, Joel N. Ullom, Daniel S. Swetz
… that couple to the TESs have a measured flux noise of 0.17 $\mu$Phi0/rt(Hz) (non- multiplexed, referred to the first …

Analysis of Several High-Resolution Bands of Spiropentane, C5H8

June 15, 2015
Author(s)
Alfons Weber, A. Maki, J. E. Price, Jared Harzan, J. W. Nibler, T. Masiello, T Blake
The high resolution absorption spectrum of spiropentane (C5H8) from 200 cm-1 to 4000 cm−1 has been measured and a detailed analysis is presented for eight bands in the region from 700 cm−1 to 2200 cm−1. Two fundamental perpendicular bands were analyzed

Compact Nano-Mechanical Plasmonic Phase Modulators

April 1, 2015
Author(s)
Brian S. Dennis, Michael Haftel, David Czaplewski, Daniel Lopez, Girsh Blumberg, Vladimir Aksyuk
The miniaturization of photonic devices is fundamentally limited by the index of refraction of the constituent materials if light is confined in dielectric nanostructures. By coupling electromagnetic fields to metal's free electrons plasmonic devices

Pyrolysis Smoke Generated Under Low-Gravity Conditions

January 17, 2015
Author(s)
Jiann C. Yang, Thomas G. Cleary, George W. Mulholland, D L. Urban, Gary A. Ruff, Zeng-guang Yuan, Marit Meyer, Victoria Bryg
A series of smoke experiments were carried out in the Microgravity Science Glovebox on the International Space Station (ISS) Facility to assess the impact of low-gravity conditions on the size distribution and structure of the smoke aerosol. This

Movement on Stairs During Building Evacuations

September 25, 2014
Author(s)
Erica D. Kuligowski, Richard Peacock, Paul A. Reneke, Emily A. Wiess, Jason D. Averill, Robert Hagwood, Enrico Ronchi, Bryan Hoskins, Michael Spearpoint
… movement speeds in the current study of 0.47 m/s ± 0.17 m/s are observed to be quite similar to the range of …

Areas of the U.S. wildlandurban interface threatened by wildfire during the 20012010 decade

April 1, 2014
Author(s)
Douglas S. Thomas, David T. Butry
… within the WUI. We find that 6.3 % of the U.S. population (17.5 million) resided within these areas and that 2.1 % of … during peak ignition hours. The threatened area comprised 4.1 % of the coterminous USA and 44.9 % of the WUI. Within … however, for some states, this number was as high as 25.4 %. …

Studies of photoconductivity and FET behavior in examining drift mobility, surface depletion, and transient effects in Si-doped GaN nanowires examined in vacuum and air

May 3, 2013
Author(s)
Norman A. Sanford, Lawrence H. Robins, Paul T. Blanchard, K. Soria, B. Klein, Kristine A. Bertness, John B. Schlager, Aric W. Sanders
Variable intensity photoconductivity (PC) performed under vacuum at 325 nm was used to estimate drift mobility and negative surface charge density sigma for c-axis oriented Si-doped GaN nanowires (NWs). In this approach we assumed that sigma was
Displaying 751 - 775 of 1005
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