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Search Publications

NIST Authors in Bold

Displaying 38151 - 38175 of 73697

Comparison of Strength Properties of Normotensive and Hypertensive Rat Pulmonary Arteries

October 1, 2004
Author(s)
Elizabeth S. Drexler, Christopher N. McCowan, J Wright, Andrew J. Slifka, Dunbar Ivy, Robin Shandas
A series of tests were conducted to quantify the difference in the mechanical properties of normo-and hypertensive pulmonary arteries. A bubble-test design was emplpoyed to measure the biaxial properties of a segment of artery. The test results compare the

Constitutive Models for a Poly(e-caprolactone) Scaffold

October 1, 2004
Author(s)
Timothy P. Quinn, Tammy L. Oreskovic, Christopher N. McCowan, N Washburn
We investigate material models for a porous, polymeric scaffold used for bone. The material was made by co-extruding poly (e-caprolactone) (PCL), a biodegradable polyester, and poly(ethylene oxide)(PEO). The water soluble PEO was removed resulting in a

Critical Review of the Current Status of Thickness Measurements for Ultrathin SiO2 on Si, Part V: Results of a CCQM Pilot Study

October 1, 2004
Author(s)
M P. Seah, S J. Spencer, F Bensebaa, I Vickridge, H Danzebrink, Michael Krumrey, T Gross, W Oesterle, E Wendler, B Rheinlander, Yasushi Azuma, I Kojima, N Suzuki, M Suzuki, Shigeo Tanuma, D W. Moon, Hansuek Lee, H Cho, H Y. Chen, A T. Wee, T Osipowicz, J S. Pan, W A. Jordaan, R Hauert, U Klotz, C van der marel, M Verheijen, Y Tamminga, C Jeynes, P Bailey, S Biswas, U Falke, Nhan Van Nguyen, Deane Chandler-Horowitz, James R. Ehrstein, D Muller, Joseph Dura

Cross-Enterprise Documents Sharing (XDS)

October 1, 2004
Author(s)
William J. Majurski
The National Software Reference Library (NSRL) of the U.S. National Institute of Standards and Technology (NIST) collects software from various sources and publishes file profiles computed from this software (such as MD5 and SHA-1 hashes) as a Reference

Elastic, Anelastic, Piezoelectric Coefficients of Monocrystal Lithium Niobate

October 1, 2004
Author(s)
H M. Ledbetter, H Ogi, N Nakamura
Using improved acoustic spectroscopy, we determined the complete above coefficients (16 independent ones) by measuring the macroscopic resonance frequencies of a single lithium-niobate monocrystal. The improvement consisted of using laser-Doppler

Electrical material property measurements using a free-field, ultra-wideband system

October 1, 2004
Author(s)
Chriss A. Grosvenor, Robert T. Johnk, David R. Novotny, Seturnino Canales, James R. Baker-Jarvis, Michael D. Janezic, Jim L. Drewniak, Marina Kolednitseva, Jianmin Zhang, Poornachander Rawa
Abstract: Nondestructive measurements of materials using TEM horn antennas and an ultra-wideband measurement system are presented. Time-domain gating and genetic algorithms are used to process the data and extract the dielectric properties of the material

Evaluation of Elastic Modulus and Hardness of Thin Films By Nanoindentation

October 1, 2004
Author(s)
Yeon-Gil G. Jung, Brian R. Lawn, M Martyniuk, H Huang, X Z. Hu
Simple equations are proposed for determining elastic modulus and hardness properties of thin films on substrates from nanoindentation experiments. The empirical formulation relates the modulus E and hardness H of the film/substrate bilayer to

Fatigue and Damage Tolerance of Y-TZP Ceramics in Layered Biomechanical Systems

October 1, 2004
Author(s)
Yu Zhang, Antonia Pajares, Brian R. Lawn
The fatigue properties of fine-grain Y-TZP in cyclic flexural testing are studied. Comparative tests on a coarser-grain alumina provide a baseline control. A bilayer configuration with ceramic plates bonded to a compliant polymeric substrate and loaded

Feasibility Study for the Development of a Motion Imagery Quality Metric

October 1, 2004
Author(s)
J Irvine, Charles D. Fenimore, D Cannon, John W. Roberts, S Israel, L Simon, C Watts, J Miller, A I. Aviles, P F. Tighe, R J. Behrens
The motion imagery community would benefit from the availability of standard measures for assessing image interpretability. The National Imagery Interpretability Rating Scale (NIIRS) has served as a community standard for still imagery, but no comparable

Fermi Level Alignment and Electronic Levels in Molecular Wire Self-Assembled Monolayers on Au

October 1, 2004
Author(s)
Christopher D. Zangmeister, Steven W. Robey, Roger D. van Zee, Yuxing Yao, J M. Tour
A combination of one- and two-photon photoelectron spectroscopies are used to determine the electronic structure around the Fermi level for self-assembled monolayers of a prototypical molecular wire , 4,4 -(ethynylphenyl)-1-benzenethiol (C6H5-C≡C-C6H4-C≡C-

Final Report on CIPM Key Comparison of 1 kg Standards in Stainless Steel (CCM.M-K1)

October 1, 2004
Author(s)
R S. Davis, C Aupetit, L O. Becerra, W Bich, N Bignell, G D. Chapman, J.-H. Chung, J Coarasa, Stuart Davidson, N G. Domostroeva, Kitty Fen, M Glaser, W G. Lee, M Lecollinet, Q Li, R Spurny, J Verbeek, Zeina J. Kubarych, A Ooiwa, A Torino
This report describes a Key Comparison of 1 kg standards in stainless steel undertaken by the Consultative Committee on Mass and Related Quantities (CCM) and piloted by the Bureau International des Poids et Mesures (BIPM). The comparisons were carried ou

Gene Expression Profiles of Cells in Response to Tyrosine Polycarbonate Blends

October 1, 2004
Author(s)
Matthew Becker, L A. Bailey, N Washburn, J Kohn, Eric J. Amis
The evaluation and identification of detrimental interactions between biological species and synthetic surfaces is a daunting challenge as the number of materials and control of physical variables increases. In this talk, the physical properties of

Grid Computing

October 1, 2004
Author(s)
Christopher E. Dabrowski
The National Software Reference Library (NSRL) of the U.S. National Institute of Standards and Technology (NIST) collects software from various sources and publishes file profiles computed from this software (such as MD5 and SHA-1 hashes) as a Reference
Displaying 38151 - 38175 of 73697
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