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Displaying 21976 - 22000 of 143806

High-Performance Coherent Population Trapping Clock Based on Laser-Cooled Atoms

November 2, 2017
Author(s)
Xiaochi Liu, Eugene Ivanov, V. I. Yudin, John Kitching, Elizabeth Donley
Atomic clocks based on laser-cooled atoms are capable of achieving long interrogation periods and hence narrow resonance linewidths because of the very low atom velocities achievable with laser cooling. The long interrogation periods are achieved without

Plasma modification of vertically aligned carbon nanotubes: superhydrophobic surfaces with ultra- low reflectance

November 2, 2017
Author(s)
Christopher S. Yung, Nathan A. Tomlin, Karl Heuerman, Mark W. Keller, Malcolm G. White, Michelle S. Stephens, John H. Lehman
Vertically aligned carbon nanotubes (VACNTs) are excellent broadband (UV–VIS–IR) absorbers of light that can be made even darker with plasma treatments. Modification of VACNTs using O2 and/or CF4 plasmas is shown to have a significant impact on the

Rigidity of the magic pentagram game

November 2, 2017
Author(s)
Amir Kalev, Carl Miller
A game is rigid if a near-optimal score guarantees, under the sole assumption of the validity of quantum mechanics, that the players are using an approximately unique quantum strategy. As such, rigidity has a vital role in quantum cryptography as it

Synthesis and Transport Properties of Fe2SnSe4

November 2, 2017
Author(s)
Kaya Wei, Joshua B. Martin, George S. Nolas
Fe2SnSe4 was synthesized by elemental reaction and densified using hot pressing in order to investigate the transport properties. It crystallizes in the orthorhombic space group Pnma with the olivine-type crystal structure. Our report describes results and

The Costs and Losses of Wildfires

November 2, 2017
Author(s)
Douglas S. Thomas, David T. Butry, Stanley W. Gilbert, David H. Webb, Juan F. Fung
This report enumerates all possible costs of wildfire management and wildfire-related losses. It, further, compiles estimates or proposes methods for estimating the costs and losses identified. These estimates can be used for C+NVC modeling, and can also

A Design Methodology for Developing Resilient Cloud Services (RCS)

November 1, 2017
Author(s)
Abdella Battou, Salim Hariri
Cloud Computing is emerging as a new paradigm that aims at delivering computing as a utility. For the cloud computing paradigm to be fully adopted and effectively used, it is critical that the security mechanisms are robust and resilient to malicious

Challenges in measuring spherical geometry using terrestrial laser scanners

November 1, 2017
Author(s)
Balasubramanian Muralikrishnan, Prem K. Rachakonda, Katharine M. Shilling, Vincent D. Lee, Daniel S. Sawyer, Geraldine S. Cheok, Luc Cournoyer
Terrestrial laser scanners (TLS) measure 3D coordinates in a scene by recording the range, the azimuth angle, and elevation angle of discrete points on target surfaces. They are increasingly used in a variety of applications, including manufacturing and
Displaying 21976 - 22000 of 143806
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