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Displaying 58026 - 58050 of 74189

Combustion Metrology: A Manifesto.

January 1, 1994
Author(s)
K C. Smyth
In the fall of 1985 Jene Golovchenko from Bell Laboratories presented a staff colloquium at the National Bureau of Standards (now NIST) on scanning tunnelling microscopy. This was an exciting time in surface science, since the tunnelling microscope was

Comparison of a Fractal Smoke Optics Model With Light Extinction Measurements

January 1, 1994
Author(s)
R A. Dobbins, George W. Mulholland, Nelson P. Bryner
Optical cross-sections of carbonaceous aggregates (smoke) formed by combustion sources have been computed based on fractal concepts. Specific extinction depends upon the primary particle size, the structure of the aggregate as represented by the fractal

Constructing Galerkins Approximations of Invariant Tori Using MACSYMA

January 1, 1994
Author(s)
David E. Gilsinn
Invariant tori of solutions for nonlinearly coupled oscillators are generalizations of limit cycles in the phase plane. They are surfaces of aperiodic solutions of the coupled oscillators with the property that once a solution is on the surface it remains

Controls and Sensors for Advanced Manufacturing

January 1, 1994
Author(s)
Frederick M. Proctor
This paper describes research into improving the performance of machine tools and robots. Techniques for improving accuracy, such as thermal compensation, automatic teaching, and force-based surface and edge finishing, are described. These techniques have

Critical Issues in Scanning Electron Microscope Metrology

January 1, 1994
Author(s)
Michael T. Postek
During the manufacturing of present-day integrated circuits, certain measurements must be made of the submicrometer structures composing the device with a high degree of repeatability. Optical microscopy, scanning electron microscopy, and the various forms
Displaying 58026 - 58050 of 74189
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