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Displaying 48751 - 48775 of 74457

Security Implementations of Active Content

March 30, 2000
Author(s)
Wayne Jansen, Athanasios T. Karygiannis
Active content documents offer several benefits to both the users of these documents and their authors. Java applets, JavaScript, and ActiveX provide more functionality to static Web pages, plug-ins enable browsers to support new types of content

Electrical Conduction and Dielectric Breakdown in Aluminum Oxide Insulators on Silicon

March 23, 2000
Author(s)
J Kolodzey, E A. Chowdhury, T Adam, G Qui, I Rau, J Olowolafe, John S. Suehle, Y Chen
Leakage currents and dielectric breakdown were studied in MIS capacitors of metal - aluminum oxide - silicon. The aluminum oxide was produced by thermally oxidizing AIN at 800 0C to 1100 0C under dry O 2 conditions. The AIN films were deposited by rf

Watt's Up, Doc? The NIST Watt Experiment and the Future of the Kg

March 21, 2000
Author(s)
J. Schwarz, Ruimin Liu, David B. Newell, Richard L. Steiner, Edwin R. Williams
The Nist Watt Balance is an interesting and beautiful experiment housed in the nonmagnetic building behind the reactor. The underlying physical principles of the experiment are very simple: a current in a magnetic gradient will produce a force that is

In Situ Diffuse Reflectance Spectroscopy for Measurement and Control of III-V Molecular Beam Epitaxy

March 17, 2000
Author(s)
Jonathan E. Guyer, W. F. Tseng, W. R. Thurber, Eric M. Vogel, Monica D. Edelstein, Donald A. Gajewski, Joseph G. Pellegrino
We report the use of diffuse reflectance spectroscopy for active, closed-loop control of substrate temperature during the growth of a modulation doped heterostructure. Measurement and control of substrate temperature is a common difficulty for molecular

An Overview of Nano-Micro-Meso Scale Manufacturing at the NIST

March 13, 2000
Author(s)
E Amatucci, Nicholas Dagalakis, Bradley N. Damazo, Matthew A. Davies, John Evans, Jun-Feng Song, E C. Teague, Theodore V. Vorburger
The future of nano-, micro- and meso-scale manufacturing operations will be strongly influenced by a new breed of assembly and manufacturing tools that will be intelligent, flexible, more precise, include in-process production technologies and make use of

Cancellation of Laser Dither Modulation From Optical Frequency Standards

March 1, 2000
Author(s)
M S. Taubman, J L. Hall
We demonstrate the removal of the dither modulation from an iodine-stabilized He-Ne laser by using a frequency-modulated acousto-optic modulator and feed-forward techniques. This procedure reduces the linewidth of the beat between this laser and a flywheel

Cobalt-Corrin Catalyzed Photoreduction of CO 2

March 1, 2000
Author(s)
J Grodkowski, Pedatsur Neta
A first attempt to use cobalt corrins (B 12) as homogeneous catalysts for photoreduction of CO 2 to CO and formic acid demonstrates that the corrins act as catalysts for this process and that they are much more efficient than cobalt porphyrins.
Displaying 48751 - 48775 of 74457
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