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Displaying 50501 - 50525 of 74344

Comparison of Classical and MALDI-TOF-MS Analysis of a Polystyrene Interlaboratory Sample

January 1, 1999
Author(s)
William R. Blair, B M. Fanconi, R J. Goldschmidt, Charles M. Guttman, William E. Wallace, S Wetzel, David L. VanderHart
Over the past several years, the use of MALDI-TOF-MS for analysis of synthetic polymers has increased significantly. As the number of polymer analyses by MALDI has increased, scrutiny of the MALDI results in comparison to classically derived values for Mw

Comparisons of Control Charts for Autocorrelated Data

January 1, 1999
Author(s)
Nien F. Zhang
Recently, statistical process control (SPC) methodolgies have been developed to accommodate autocorrelated data. A primary method to deal with autocorrelated data is the use of residual charts. Although this methodology has the advantage that it can be

Computer Simulation and Percolation Theory Applied to Concrete.

January 1, 1999
Author(s)
Edward J. Garboczi, Dale P. Bentz
Concrete is a multilength scale composite material. From the nanometer to the millimeter scale, it is a random composite, and a different random composite at each length scale. Percolation processes play a key role in the microstucture of concrete, and

Correlated Photon Based Metrology Without Absolute Standards

January 1, 1999
Author(s)
Alan L. Migdall
Pairs of photons produced two at a time via optical parametric down-conversion have proved to be a useful tool for metrology. The status of three such applications is presented. One common theme through each of these applications is that they offer
Displaying 50501 - 50525 of 74344