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Displaying 42151 - 42175 of 73697

The Sandwich Bending Specimen for Characterizing Adhesive Properties

January 1, 2003
Author(s)
Donald L. Hunston, Z Z. Miyagi, Carl R. Schultesiz, S Zaghi, H Binson
Techniques to characterize the mechanical properties of adhesives in a bond geometry are important because the behavior can differ from that of bulk adhesive samples. Although there are a number of such tests, the simplicity of the sandwich beam specimen

The Structural Evolution of Pore Formation in Low-K Dielectric Thin Films

January 1, 2003
Author(s)
M S. Silverstein, Barry J. Bauer, V. J. Lee, R C. Hedden, B G. Landes, J L. Lyons, B Kern, J Niu, T Kalantar
Specular x-ray reflectivity and small angle neutron scattering were used to characterize changes in the porosity, pore size and pore size distribution on processing a SiLK oligomer filled with 21.6 %v/v of a deuterated porogen with an average radius of 56

The Time Dependence of Liquid Helium Fluorescence

January 1, 2003
Author(s)
D N. McKinsey, C R. Brome, S N. Dzhosyuk, R G. Golub, K Habicht, P R. Huffman, E Korobkina, Steve K. Lamoreaux, C E. Mattoni, Alan Keith Thompson, L Yang, John M. Doyle

The Validation of CMM Task Specific Measurement Uncertainty Software

January 1, 2003
Author(s)
Steven D. Phillips, Bruce R. Borchardt, A Abackerli, Craig M. Shakarji, Daniel S. Sawyer, P Murray, B Rasnick, K Summerhays, J M. Baldwin, M P. Henke
Task specific CMM measurement uncertainty statements can be generated using computer (Monte Carlo) simulation. Recently, commercial products using this powerful technique have become available; however they typically involve megabytes of code inaccessible

The Virtual Cement and Concrete Testing Laboratory Version 3.0

January 1, 2003
Author(s)
Jeffrey W. Bullard
This NISTIR serves as the user's manual for Version 3.0 of the Virtual Cement and Concrete Testing Laboratory (VCCTL). Using the VCCTL, a user may create starting microstructures of cement (gypsum, fly ash, etc.) particles in water, hydrate the

Theory and Evaluation of Human Robot Interactions

January 1, 2003
Author(s)
Jean C. Scholtz
Human-robot interaction (HRI) for mobile robots is still in its infancy. Most user interactions with robots have been limited to tele-operation capabilities where the most common interface provided to the user has been the video feed from the robotic

Thermal and Flammability Properties of a Silica-Poly(methylmethacrylate) Nanocomposite

January 1, 2003
Author(s)
Takashi Kashiwagi, A B. Morgan, Joseph M. Antonucci, Mark R. VanLandingham, Richard H. Harris Jr., W H. Awad, John R. Shields
MMA, poly(metheylmethacrylate), nanocomposites were made by in situ radical polymerization of MMA, methylmethacrylate, with colloidal silica (ca. 12 nm) to study the effects of nanoscale silica particles on the physical properties and flammability

Thermal Imaging of Metals in a Kolsky-Bar Apparatus

January 1, 2003
Author(s)
Eric P. Whitenton, Richard L. Rhorer, Howard W. Yoon, D Basak, Richard J. Fields, Lyle E. Levine, Timothy J. Burns
For materials testing at elevated temperatures, we describe the design and the development of a resistively heated Kolsky-bar apparatus. The temperature of the sample is determined by non-contact thermometry and the spatial temperature gradients in the
Displaying 42151 - 42175 of 73697
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