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Displaying 48251 - 48275 of 73697

A Microshear Test to Measure the Bond Between Dental Composites and Dental Substrates

January 1, 2000
Author(s)
Walter G. McDonough, Joseph M. Antonucci, Gary E. Schumacher, Y Shimada
Mechanical property tests such as the diametral tensile, uniaxial tensile, biaxial flexural, shear, and transverse strength tests are commonly used for assessing the bond that forms between dental composites and dental substrates such as dentin and enamel

A Novel Artifact for Testing Large Coordinate Measuring Machines

January 1, 2000
Author(s)
Steven D. Phillips, Daniel S. Sawyer, Bruce R. Borchardt, David E. Ward, D E. Beutel
We present a high accuracy artifact useful for the evaluation of large CMMs. This artifact can be physically probed by the CMM in contrast to conventional techniques that use purely optical methods such as laser interferometers. The system can be used over

A Practical Fiber Optic Sensor to Monitor Resin Cure and Interphase Formation

January 1, 2000
Author(s)
Joseph~undefined~undefined~undefined~undefined~undefined Lenhart, J H. VanZanten, Joy Dunkers, Richard~undefined~undefined~undefined~undefined~undefined Parnas
A fluorescent probe, covalently grafted to glass, can be used to study the glass/resin interphase region near the surface. A blue shift in fluorescence during resin cure can be monitored when the grafted dye is immersed in epoxy. The position of the

A Reliable Message Delivery Protocol for Mobile Agents

January 1, 2000
Author(s)
Mudumbai Ranganathan, M Bednarek, Douglas C. Montgomery
The abstractions and protocol mechanisms that form the basis for inter-agent communications can significantly impact the overall design and effectiveness of Mobile Agent systems. We present the design and performance analysis of a reliable communication

A Simplified Realization for the Gaussian Filter in Surface Metrology

January 1, 2000
Author(s)
Y B. Yuan, Theodore V. Vorburger, Jun-Feng Song, Thomas B. Renegar
A simplified realization for the Gaussian filter in surface metrology is presented in this paper. The sampling function sinu/u is used for simplifying the Gaussian function. According to the central limit theorem, when n approaches infinity, the function

A Spline Algorithm for Modeling Cutting Errors on Turning Centers

January 1, 2000
Author(s)
David E. Gilsinn, Herbert T. Bandy, Alice V. Ling
The precision of manufacturing using machine tools depends on the accuracy of the relative position of the cutting tool with respect to the workpiece. Kinematic modeling of machine tools is used to describe this relative position. This motion can be

A Standards Infrastructure for the Future

January 1, 2000
Author(s)
Belinda L. Collins
This paper presents several approaches for a global standards infrastructure, from the viewpoint of the United States, and from the National Institute of Standards and Technology (NIST) in particular. The U.S. system is explained in some detail - in part
Displaying 48251 - 48275 of 73697
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