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Displaying 36526 - 36550 of 73898
Kristine A. Bertness, Alexana Roshko, Norman Sanford, John B. Schlager, Matthew H. Gray
We have demonstrated growth of AlN and GaN nanocolumns using molecular beam epitaxy with ammonia as a nitrogen source. The appearance of the columnar structure is correlated with the use of a lowtemperature AlN buffer layer, grown at about 650 'C. Field
This chapter introduces the concept of frequency stability measurements of oscillators by the Allan Deviation and spectral analysis. Examples and typical results are presented. Physical interpretations of common noise processes are discussed.
Shellee D. Dyer, Paul A. Williams, Robert J. Espejo, Jonathan Kofler, Shelley M. Etzel
We discuss the fundamental limits of fiber Bragg grating (FBG) wavelength metrology. High-accuracy wavelength measurements are critical for FBG strain sensors, because wavelength measurement uncertainties even as small as 1 pm lead to an uncertainty of
This note concerns the mathematical aspects for several biometric algorithms in the recognition or identification problem. It is assumed that a biometric signature is presented to a system which compares it with a database of signatures of known
This paper has been presented as a plenary Lecture at the Eighteenth International Conference on Chemical Thermodynamics held August 17-20, 2004, in Beijing,China. Unprecedented growth in the number of custom-designed software tools for engineering