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Displaying 2726 - 2750 of 4635

Computational Model Predictions of Suspension Rheology: Comparison to Experiment

July 25, 2007
Author(s)
Nicos Martys, Chiara F. Ferraris, V Gupta, Josephine H. Cheung
Predicting the rheological properties of fresh concrete, mortars, and cement paste from first principles remains a great challenge. While progress has been made in modeling the rheological properties of idealized hard sphere-like suspensions, there is

Broadband Permittivity Measurements of High Dielectric Constant Films

March 1, 2006
Author(s)
Jan Obrzut, Nozaki R. AnopchenkoA
Our investigation concerns measuring broadband dielectric permittivity and loss tangent of thin film high dielectric constant (high-k) dielectric materials at microwave frequencies. The measurements are made in an APC-7 coaxial configuration where the test

Phase Field Modeling of Electrochemistry. II. Kinetics

February 1, 2004
Author(s)
Jonathan E. Guyer, William J. Boettinger, James A. Warren, Geoffrey B. McFadden
The kinetic behavior of the phase field model described in (J.E. Guyer, W.J. Boettinger, J.A. Warren and G. B. McFadden, Phase field modeling of electrochemistry: Equilibrium, unpublished) is explored for advancing (plating) and receding (corroding)

Structure Formation in Micro-Confined Polymeric Emulsions

August 1, 2002
Author(s)
Jai A. Pathak, Steven D. Hudson, Kalman D. Migler
Application of a shear field to a concentrated emulsion induces a complex spatial and temporal response. The behavior of a concentrated system is treated as an extrapolation of the well-understood behavior of isolated droplets (or of the behavior of two

The Impact-Echo Method: An Overview

May 1, 2001
Author(s)
Nicholas J. Carino
The impact-echo method is a technique for flaw detection in concrete. It is based on monitoring the surface motion resulting from a short-duration mechanical impact. The method overcomes many of the barriers associated with flaw detection in concrete based

Acoustic Methods for Transport Properties Measurements in Gases

June 1, 1998
Author(s)
Keith A. Gillis, J B. Mehl, Michael R. Moldover
Two novel acoustic resonators have been developed, one for measuring the viscosity and a second for measuring the Prandtl number of gases. For viscosity measurements, we use a double Helmholtz resonator called the Greenspan viscometer. The Greenspan

Interconversion of Peptide Mass Spectral Libraries Derivatized with iTRAQ or TMT Labels

July 7, 2016
Author(s)
Zheng Zhang, Xiaoyu Yang, Yuri A. Mirokhin, Dmitrii V. Tchekhovskoi, Weihua Ji, Sanford P. Markey, Pedatsur Neta, Bowen A. Michael, Stephen E. Stein
Derivatizing peptides with isobaric tags such as iTRAQ and TMT is widely employed in proteomics due to their ability to multiplex quantitative measurements. We recently made publicly available a large peptide library derived from iTRAQ 4-plex labeled

Gate Dielectric Thickness Metrology Using Transmission Electron Microscopy

January 1, 2000
Author(s)
J H. Scott, Eric S. Windsor, D Brady, J Canterbury, A. Karamcheti, W Chism, A C. Diebold
… x-ray photoelectron spectroscopy, and medium energy ion scattering. Silicon oxynitride films were grown by … Cross sectional TEM samples were prepared by dimpling/ion milling and HRTEM micrographs were acquired at 297 keV … the cross section glue line and both sides of the dimple/ion mill perforation. Statistical analysis of the HRTEM …

Optical Frequency Standards Based on the 199 Hg + Ion

April 1, 2003
Author(s)
U Tanaka, James C. Bergquist, S Bize, Scott Diddams, Robert E. Drullinger, Leo W. Hollberg, Wayne M. Itano, C E. Tanner, David J. Wineland
… Optical Frequency Standards Based on the 199 Hg + Ion …
Displaying 2726 - 2750 of 4635
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