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Displaying 43501 - 43525 of 74030

High-Temperature Investments

January 1, 2002
Author(s)
O Okuno, K Asaoka, John A. Tesk
Dental investing materials, used for the processing of dental materials above temperatures of ca. 1200 degrees C to 1300 degrees C, are described. Their compositions and the effects of different ingredients are presented.

Historical Background and Development of the Charpy Test

January 1, 2002
Author(s)
L Toth, H P. Rossmanith, Thomas A. Siewert
The impact test method based on a pendulum, generally called the Charpy test, is one of the more cost-effective material testing procedures, both with respect to acceptance of products and to surveillance. This contribution attempts to present a brief

Human-Robot Interactions: Creating Synergistic Cyber Forces

January 1, 2002
Author(s)
Jean C. Scholtz
Human-robot interaction for mobile robots is still in its infancy. As robots increase in capabilities and are able to perform more tasks in an autonomous manner we need to think about the interactions that humans will have with robots and what software

Incoherent Neutron Scattering and the Dynamics of Confined Polycarbonate Films

January 1, 2002
Author(s)
Christopher L. Soles, Jack F. Douglas, Wen-Li Wu, Robert M. Dimeo
Incoherent elastic neutron scattering measurements are performed on thin (1015 to 75 ) polycarbonate films supported on Si wafers. The mean-square atomic displacement is determined by fitting the intensity data to the Debye-Waller factor and we find that

Inhibition of Premixed and Non-Premixed Flames with Fine Droplets of Water and Solutions

January 1, 2002
Author(s)
Harsha K. Chelliah, A K. Lazzarini, P N. Wanigarathne, Gregory T. Linteris
Inhibition/extinction of premixed and non-premixed methane-air flames with fine-droplets of water and solutions containing several chemical agents are investigated experimentally. While solutions allow delivery of much higher concentrations of chemical

Integrating Spheres for Mid- and Near-Infrared Reflection Spectroscopy

January 1, 2002
Author(s)
Leonard M. Hanssen, K A. Snail
Integrating sphere instrumentation has historically been the primary analysis tool for accurate quantitative characterization of reflectance and absorptance of samples and materials that exhibit a high degree of scattering. We present a review of
Displaying 43501 - 43525 of 74030