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Bioscience

Biomaterials

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Displaying 126 - 150 of 3439

Near-Field Intensity Correlations in Semicontinuous Metal-Dielectric Films

October 12, 2021
Author(s)
K Seal, A K. Sarychev, H Noh, D A. Genov, A Yamilov, Vladimir Shalaev, Z C. Ying, H Cao
Spatial intensity correlation functions are obtained from near-field scanning optical microscope measurements of semicontinuous metal-dielectric films. The concentration of metal particles on a dielectric surface is varied over a wide range to control the

NEXAFS Characterization of Poly(amino acids)

October 12, 2021
Author(s)
N T. Samuel, Daniel A. Fischer, David G. Castner
The near-edge x-ray absorption fine structure (NEXAFS) spectra of poly(amino acids) at the carbon, nitrogen and oxygen k-edges are investigated in this study. The poly(amino acid) NEXAFS spectra at the k-edges closely resemble the spectra of the

NiO: A Charge Transfer or Mott-Hubbard Insulator

October 12, 2021
Author(s)
T M. Schuler, D L. Ederer, S Itza-Ortiz, G T. Woods, T A. Callcott, Joseph Woicik
Using site-specific soft x-ray emission and absoroption spectroscopy in conjunction with site-specific x-ray photoelectron spectroscopy, we measure the magnitude of the insulating band gap of NiO to be approximately 2.0 eV, comparable to that predicted by

Processing of High Temperature Ceramic Superconductors

October 12, 2021
Author(s)
P Goyal, Winnie Wong-Ng, Y Murakami, D Driscoll
The contents of this transaction volume comprise the proceedings of the Electronics Division Focused Session HighTemperature Superconductor Processing during the American Ceramic Society annual meeting at St. Louis, MO, from April29 to May 1, 2002.. A

Pulsed Laser Deposition and Characterization of Hf Based High-k Dielectric Thin Films

October 12, 2021
Author(s)
M A. Sahiner, Joseph Woicik, P Gao, P McKeown, Mark Croft, M Gartman, B Benapfl
The continuous downward scaling of the complementary metal oxide semiconductor (CMOS) devices has enabled the Si-based semiconductor industry to meet the technological requirements such as high performance and low power consumption. However, the

Quantitative Evaluation of Perfluorinated Alkylthiol Molecular Order on Gold Surfaces

October 12, 2021
Author(s)
L Gamble, D Radford, Daniel A. Fischer, D W. Grainger, David G. Castner
Self-assembled monolayers (SAMs) of perfluoroalkylthiols [CF 3(CF 2) xCH 2CH 2SH (x=3, 5, 7, and 9)] on gold were examined by X-ray photoelectron spectroscopy (XPS), near edge X-ray absorption fine structure (NEXAFS), and static time of flight secondary

Resistance Heating of the Gasket in a Gem-Anvil High Pressure Cell

October 12, 2021
Author(s)
N M. Balzaretti, E J. Gonzalez, Gasper J. Piermarini, T Russell
The design and fabrication of a modified gem-anvil high pressure cell capable of statically heating gasketed samples to temperatures in the range of 1100 degrees C at pressures up to 4.0 Gpa is described. The high temperatures were achieved by resistance

Secondary Phase Evolution in Silicon Nitride During Creep and Heat Treatment

October 12, 2021
Author(s)
F Lofaj, H Gu, A Okada, Sheldon M. Wiederhorn, H Kawamoto
The microstructure of a ytterbia- and yttria-containing grade of silicon nitride, SN 88, was investigated after it had been annealed in nitrogen, in air and crept in air. We were particularly interested in phase transformation within the secondary silicate
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