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NIST Authors in Bold

Displaying 45276 - 45300 of 73960

Low Angle Grain Boundary Dewetting in Sapphire

August 1, 2001
Author(s)
B Hockey, M K. Kang, Sheldon M. Wiederhorn, J Blendell
The structure and composition of low angle grainboundaries produced in sapphire by a liquid phase sintering process were investigated by conventional and high resolution transmission electron microscopy (CTEM and HRTEM, respectively). Considering the

Low-Temperature Kinetics of Reactions of the OH Radical With Propene and 1-Butene Studied by a Pulsed Laval Nozzle Apparatus Combined With Laser-Induced Fluorescence

August 1, 2001
Author(s)
A B. Vakhtin, S Lee, Dwayne E. Heard, I W. Smith, S R. Leone
The kinetics of the reactions of the OH radical with propene and 1-butene are studied at T = 103 K. The low-temperature environment is provided by a pulsed Laval nozzle supersonic expansion of nitrogen with admixed radical precursor and reactant gases. The

MatML-Materials Markup Language Workshop Report

August 1, 2001
Author(s)
C P. Sturrock, E F. Begley, J G. Kaufman
The MatML - Materials Markup Language Workshop was held at NIST to consider the technical and strategic future of MatML, an extensible markup language for materials data. Following detailed description and illustrations of MatML, the views of various

Measured Performance of Building Integrated Photovoltaic Panels

August 1, 2001
Author(s)
Arthur H. Fanney, Brian P. Dougherty, Mark W. Davis
The photovoltaic industry is experiencing rapid growth. Industry analysts project that photovoltaic sales will increase from their current $1.5 billion level to over $27 billion by 2020, representing an average growth rate of 25%.(Cook et al. 2000)[1]. To

Molecular Engineering of a Polymer of Tetrameric Hemoglobins

August 1, 2001
Author(s)
C Fronticelli, D Arosio, K M. Bobofchak, G B. Vasquez
We have engineered, a recombinant mutant human hemoglobin, Hb prisca Β(S9C+C112G), which assembles in a polymeric form. The polymerization is obtained through the formation of intermolecular S-S bonds between cysteine residues introduced at position Β9, on

Moving the Pulsed Heating Technique Beyond Monolithic Specimens: Experiments with Coated Wires

August 1, 2001
Author(s)
Daniel Josell, D Basak, J L. McClure, Ursula R. Kattner, Maureen E. Williams, William J. Boettinger, M Rappaz
Pulsed heating experiments based on pyrometric measurement of the temperature-time history of metal specimens rapidly heated by passage of electric current have a thirty year history at NIST. In recent years, efforts have been made to move beyond the

Natural Ventilation Review and Plan for Design and Analysis Tools

August 1, 2001
Author(s)
Steven J. Emmerich, William S. Dols, James W. Axley
Natural ventilation has the potential to reduce first costs and operating costs for some commercial buildings while maintaining ventilation rates consistent with acceptable indoor air quality. While a recent surge of interest in Europe has advanced natural

Phase-Coherent Optical Pulse Synthesis From Separate Femtosecond Lasers

August 1, 2001
Author(s)
R K. Shelton, L -. Ma, H C. Kapteyn, M M. Murnane, John L. Hall, Jun Ye
We generated a coherently synthesized optical pulse from two independent mode-locked femtosecond lasers, providing a route to extend the coherent broadwidth available for ultrafast science. The two separate lasers (one centered at 760 nanometers wavelength

Problem with Submicrometer-linewidth Standards and A Possible Solution

August 1, 2001
Author(s)
James E. Potzick
Traceable linewidth measurements of tiny features on photomasks and wafers present interesting challenges. Usually technical solutions exist for the problems encountered, but traceability can be costly in time and labor. A measurement is useful only if its

Problem With Submicrometer-Linewidth Standards and a Proposed Solution

August 1, 2001
Author(s)
James E. Potzick
Traceable linewidth measurements of tiny features on photomasks and wafers present interesting challenges. Usually technical solutions exist for the problems encountered, but traceability can be costly in time and labor. A measurement is useful only if its

Progress Towards an International Standard for Data Transfer in Rapid

August 1, 2001
Author(s)
Lalit Patil, D Dutta, Ram D. Sriram, Kevin W. Lyons, Amba D. Bhatt, Mike Pratt, M Allahabad
This paper discusses the informational requirements of rapid prototyping and layered manufacturing (RPLM). The study is motivated by the recent decision to embark on the development of a new Application Protocol for the international standard ISO 10303

Properties of Cavity-Backed Slot-Ring Antennas at 95 GHZ

August 1, 2001
Author(s)
Shalva Nolen, Todd E. Harvey, Carl D. Reintsema, Erich N. Grossman
Slot-ring antennas with planar backshorts, designed for operation at 95 GHz, have been fabricated and their properties measured. Using optical lithography, we fabricated the slot-ring antennas, along with integrated niobium thin-film biolometers, on
Displaying 45276 - 45300 of 73960
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