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Displaying 151 - 175 of 287

Tunable Ionic-Conductivity of Collapsed Sandia Octahedral Molecular Sieves (SOMS)

September 12, 2007
Author(s)
Jason D. Pless, Terry J. Garino, James E. Maslar, Tina M. Nenoff
The structure-property relationship between atomic cation substitution and bulk scale conductivity in perovskites has been studied systematically. A series of Na-Nb perovskites has been synthesized via two methods (1) ion-exchange or (2) synthetic metal

Experimental and Thermodynamic Assessment of Sn-Ag-Cu Solder Alloys

October 1, 2000
Author(s)
Kil-Won Moon, William J. Boettinger, Ursula R. Kattner, Frank S. Biancaniello, C A. Handwerker
Sn-rich alloys in the Sn-Ag-Cu system are being studied for their potential as Pb-free solders. Thus, the location of the ternary eutectic involving L, (Sn), Ag 3)Sn and Cu( 6)Sn( 5) phases is of critical interest. Phase diagram data in the Sn-rich corner

Hertzian Contact Resonances

January 1, 1994
Author(s)
John A. Kramar, T Mcwaid, J Schneir, E C. Teague
… 1.34 kHz to 1.81 kHz compared to a theoretical range of 1.09 kHz to 1.98 kHz as the loading force was increased from …

Near-infrared photonic phase-change properties of transition metal ditellurides.

September 23, 2019
Author(s)
Albert Davydov, Sergiy Krylyuk, Yifei Li, Akshay Singh, Rafael Jaramillo
We use the (Mo,W)Te2 system to explore the potential of transition metal dichalcogenides (TMDs) as phasechange materials for integrated photonics. We measure the complex optical constant of MoTe2 in both the 2H and 1T’ phases by spectroscopic ellipsometry

Biodegradable biliverdin nanoparticles for efficient photoacoustic imaging

June 27, 2019
Author(s)
Parinaz Fathi, Knox J. Hailay, Dinabandhu Sar, Indu Tripathi, Ostadhossein Fatemeh, Misra K. Santosh, Mandy Esch, Jefferson Chan, Dipanjan Pan
Here we report the synthesis of nanoparticles composed of Biliverdin cross-linked with a bifunctional amine functionalized linker. The nanoparticles display high absorbance at 365 nm and 680 nm, fluorescence when excited at 365 nm, and photoacoustic

Quality Cement and Concrete - The Role of Testing Laboratories

February 19, 2017
Author(s)
J H. Pielert
Field inspection (including sampling) and laboratory testing of concrete and concrete-making materials are key activities ensuring that constructed facilities are durable and long lasting. Standards which promote the quality of testing are prepared by ASTM

The Ternary Eutectic of Sn-Ag-Cu Solder Alloys

September 1, 2000
Author(s)
Kil-Won Moon, William J. Boettinger, Ursula R. Kattner, Frank S. Biancaniello, C A. Handwerker
New measurements using precision thermal analysis and existing experimental data for the Sn-Ag-Cu system are summarized. For Sn-Ag-Cu alloys, the location of the ternary eutectic involving L, Sn, Ag3Sn, and Cu6Sn5 phases in the Sn-rich corner is of

Solute-derived Thermal Stabilization of Nano-sized Grains in Melt-Spun Aluminum

June 2, 2016
Author(s)
Andrew H. Baker, Paul G. Sanders, Eric Lass, Deepak Kapoor, Steve L. Kampe
Thermal stability of nanograined metals can be difficult due to the large driving force for growth that arises from the significant boundary area constituted by the nanostructure. Kinetic approaches for stabilization of the nanostructure effective at low

Large-scale Time-lapse Microscopy of Oct4 Expression in Human Embryonic Stem Cell Colonies

May 22, 2016
Author(s)
Kiran Bhadriraju, Michael Halter, Julien M. Amelot, Peter Bajcsy, Joe Chalfoun, Antoine Vandecreme, Barbara Mallon, Kye-yoon Park, John T. Elliott, Subhash Sista, Anne L. Plant
Identification of critical characteristics of therapeutically active cells, and quantification of those characteristics, are essential for assuring consistency and potency of cell therapy products. We have developed image analysis and visualization

Experimental Study of High Speed Polarization -Coding Quantum Key Distribution with Sifted -Key Rates Over Mbit/s

June 1, 2009
Author(s)
Xiao Tang, Lijun Ma, Alan Mink, Anastase Nakassis, Barry J. Hershman, Joshua C. Bienfang, David H. Su, Ronald F. Boisvert, Charles W. Clark, Carl J. Williams
… photon number of 0.1, we achieved a sifted-key rate of 2.09 Mbit/s over 1 km optical fiber. The quantum bit error rate … collection and privacy amplification a net key rate of 1.7 Mbit/s is obtained. That is sufficient for one-time-pad …

Radiative Beta Decay of the Free Neutron

February 2, 2009
Author(s)
R L. Cooper, T E. Chupp, Maynard S. Dewey, Thomas R. Gentile, Hans Pieter Mumm, Jeffrey S. Nico, Alan Keith Thompson, B M. Fisher, I Kremsky, F E. Wietfeldt, E J. Beise, H Breuer, K G. Kiriluk, J Bryne, Kevin Coakley, Changbo Fu
… photons with energy between 15 keV and 340 keV to be (3:09+- 0:32) x 10-3 (68% level of con fidence) where the …
Displaying 151 - 175 of 287
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