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Displaying 44301 - 44325 of 74324

A 100 GHz AM and PM Noise Measurement System: Preliminary Design and Performance

January 1, 2002
Author(s)
David A. Howe, Craig W. Nelson, F L. Walls, J F. Garcia nava, Archita Hati, A Sen Gupta
A 1OO GHz AM and PM noise measurement system is described. The basic approach to its construction is to apply existing state-of-the-art, cross-correlation noise measurement techniques to 1OO GHz (W-band).

A Broad Perspective on the Dynamics of Highly Confined Polymer Films

January 1, 2002
Author(s)
Christopher L. Soles, Jack F. Douglas, Wen-Li Wu, H Peng, D W. Gidley
The manner in which the dynamics of a polymer are affected by thin film confinement is of technological significance, impacting thin film applications such as lubricants, adhesives, and chemically amplified photoresists. In this manuscript we use specular

A Free-Boundary Model for Duffusion-Induced Grain Boundary Motion

January 1, 2002
Author(s)
P C. Fife, John W. Cahn, C M. Elliott
On the basis of a phase-field model previously proposed in Cahn et al. (acta Mater. 45, 4397-4413 (1997)) to describe the phenomenon of diffusion-induced grain boundary motion (DIGM), we present a formal asymptotic reduction to a moving free boundary

A High Speed Quantum Communication Testbed

January 1, 2002
Author(s)
Carl J. Williams, X Tang, M Hiekkero, J Rouzaud, R Lu, A Goedecke, Alan L. Migdall, A Mink, A Nakassis, Leticia S. Pibida, J Wen, Edward W. Hagley, Charles W. Clark

A Laser Tracker Calibration System

January 1, 2002
Author(s)
Daniel S. Sawyer, Bruce R. Borchardt, Steven D. Phillips, Charles Fronczek, William T. Estler
We describe a laser tracker calibration system developed for frameless coordinate metrology systems. The system employs a laser rail to provide an 'in situ' calibrated length standard that is used to test a tracker in several different configurations. The

A Lexical Analogy to Feature Matching and Pose Estimation

January 1, 2002
Author(s)
John A. Horst
We relate the problem of finding a correspondence between sensed and model features to that of finding a match between a random set of letters and words in a dictionary. The process is equivalent to hashing and the linguistic perspective is added to

A Novel Low Noise Regenerative Divide-by-Four Circuit

January 1, 2002
Author(s)
A G. Sen gupta, F L. Walls
We discuss a novel design of a self starting regenerative divider that permits division by 3, 4, 5, 6 ... instead of the usual 2. This is accomplished by having the loop oscillate simultaneously at two different frequencies, e. g., at f/4 and 3f/4. A

A Parallel 3D Dendritic Growth Simulator using the Phase-Field Method

January 1, 2002
Author(s)
William L. George, James A. Warren
We describe an implementation of a parallel finite-difference algorithm for the simulation of alloy solidification in three dimensions using the phase-field model. We also describe the visualization of the output from this simulator. Although thistype of
Displaying 44301 - 44325 of 74324
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