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Displaying 29551 - 29575 of 143737

Implementing Trusted Geolocation Services in the Cloud

February 17, 2016
Author(s)
Michael J. Bartock, Karen Scarfone, Larry Feldman
The bulletin summarizes the information presented in NISTIR 7904, "Trusted Geolocation in the Cloud: Proof of Concept Implementation". The publication explains security challenges involving Infrastructure as a Service (IaaS) cloud computing technologies

Improved Catalytic Activity and Stability of Palladium Pincer Complex by Incorporation into a Metal-Organic Framework

February 17, 2016
Author(s)
Samantha A. Burgess, Abebu Kassie, Sarah A. Baranowski, Keith J. Fritzsching, Klaus Schmidt-Rohr, Craig Brown, Casey R. Wade
A porous metal-organic framework Zr 6O 4(OH) 4(L-PdX) 3 (1-x) has been constructed from Pd diphosphinite pincer complexes ([L-PdX} 4 = [1,3-(OPAr 2) 2C 6H 3)PdX] 4-, Ar = p-C 6H 4CO 2, X = Cl, I). Reaction of 1-X with Phi(O 2CCF 3) 2 generates 1-TFA, which

Portable high-accuracy non-absorbing laser power measurement at kilowatt levels by means of radiation pressure

February 16, 2016
Author(s)
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 laser’s optical power output. This approach traces its calibration of the optical Watt to the kilogram. Our power meter is designed for high-accuracy

The lifetime of 4p54d levels in highly ionized atoms

February 16, 2016
Author(s)
G. Gaigalas, P. Rynkun, Charlotte F. Fischer
Energy levels, lifetimes, and wave function compositions have been computed for all atomic states of the 4p6 and 4p54d configurations using a single-reference (SR) configuration state along with single- and double-substitutions (SD) to generate expansions

Experimental dynamic trapping of electrostatically actuated bistable micro-beams

February 15, 2016
Author(s)
Lior Medina, Rivka Gilat, Robert Ilic, Slava Krylov
We demonstrate dynamic snap-through from a primary to a secondary statically inaccessible stable configuration in single crystal silicon, curved, doubly clamped micromechanical beam structures. Nanoscale motion of the fabricated bistable micromechanical

Near-field control and imaging of free charge carrier variations in GaN nanowires

February 15, 2016
Author(s)
Samuel Berweger, Paul T. Blanchard, Matthew Brubaker, Kevin J. Coakley, Norman A. Sanford, Thomas Mitchell (Mitch) Wallis, Kris A. Bertness, Pavel Kabos
Despite their uniform crystallinity, the shape and faceting of semiconducting nanowires (NWs) can give rise to variations in structure and associated electronic properties. Here we investigate local variations in electronic structure across individual n
Displaying 29551 - 29575 of 143737
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