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NIST Authors in Bold

Displaying 45901 - 45925 of 73779

Distributed Sensor Fire Detection (NIST SP 965)

February 1, 2001
Author(s)
Thomas G. Cleary, Kathy A. Notarianni
This paper details a case study that utilized model simulations to assess the relative performance benefits of distributed sensing over single-station, single-sensor smoke detection and co-located multi-sensor detection. 500 individual CFAST computer fire

DNA Mass Spectrometry at NIST

February 1, 2001
Author(s)
Peter M. Vallone
The use of mass spectrometry as a tool for solving biochemical problems is growing. Specifically, matrix assisted laser desorption ionization coupled with time-of-flight detection systems (MALDI-TOF) is emerging for high throughput and highaccuracy

Documentary and Physical Standards for Surface Finish and Imperfections

February 1, 2001
Author(s)
Theodore V. Vorburger
Surface finish and imperfections are important properties of optical surfaces because they are caused by manufacturing limitations or defects and are linked to degradation of optical performance. Surface finish or surface roughness constitutes the numerous

Evanescent-Wave Cavity Ring-down Spectroscopy for Trace Water Detection

February 1, 2001
Author(s)
A C. Pipino, Joseph T. Hodges
We explore the use of evanescent wave cavity ring-down spectroscopy (EW-CRDS) for water detection through a signal-to-noise ratio analysis. Cavity ring-down spectroscopy (CRDS) is an emerging optical absorption technique that employs the mean photon decay

Exploring a Quantum Degenerate Fermi Gas

February 1, 2001
Author(s)
Deborah S. Jin, B. L. DeMarco, S Papp
We discuss the production and study of a quantum degenerate Fermi gas of atoms. The fundamental difficulty in cooling a gas of fermionic atoms is the lack of rethermalizing collisions in a spin-polarized sample. We overcome this difficulty using

Exploring Site Quality Above 1 GHz Using Double Ridged Horns

February 1, 2001
Author(s)
Dennis G. Camell, Robert T. Johnk, K. R. Hall
This is a summary of recent exploratory efforts conducted by the American National Standards Institute (ANSI) Accredited Standards Committee C63, Sub-Committee 1,working group 1-13.2 on site requirements for radiated measurements above 1GHz. The main

Fabrication and Electron Microprobe Characterization of Barium-Strontium-Titanate (BST) Films

February 1, 2001
Author(s)
Ryna B. Marinenko, J T. Armstrong, Debra L. Kaiser, Joseph J. Ritter, Peter K. Schenck, C P. Bouldin, J Blendell, Igor Levin
Barium strontium titanate (BST) thin films of varying composition and thickness (5nm to 400nm) on (100)Si or Pt/(100)Si substrates were measured using an electron microprobe analyzer with wavelength dispersive x-ray spectrometers. Most of the films were

Fabrication, Derivatization and Applications of Plastic Microfluidic Devices

February 1, 2001
Author(s)
S L. Barker, Michael J. Tarlov, David J. Ross, T J. Johnson, E A. Waddell, Laurie E. Locascio
Control of the polymer surface chemistry is a crucial aspect of development of plastic microfluidic devices. When commercially available plastic substrates are used to fabricate microchannels, differences in the electroosmotic flow mobility (EOF) from

Fiber Optic Flow and Cure Sensing for Liquid Composite Molding

February 1, 2001
Author(s)
Joy P. Dunkers, Joseph~undefined~undefined~undefined~undefined~undefined Lenhart, S R. Kueh, J H. VanZanten, S G. Advani, Richard~undefined~undefined~undefined~undefined~undefined Parnas
The Polymer Composites group at the National Institute of Standards and Technology has efforts in both on-line flow and cure sensing for liquid composite molding. For our flow program, a novel fiber optic real time sensor system has been developed that can

Fire Emulator/Detector Evaluator: Design, Operation, and Performance (NIST SP 965)

February 1, 2001
Author(s)
Thomas G. Cleary, Michelle K. Donnelly, William L. Grosshandler
This paper describes the fire emulator/detector evaluator which was developed by NIST. The FE/DE has proven to be a very flexible design. The main function of the device is to reproduce the environment (temperature, air velocity, aerosol and gas species

Formation of Macropores in Calcium Phosphate Cement Implants

February 1, 2001
Author(s)
Shozo Takagi, Laurence C. Chow
A calcium phosphate cement (CPC) was shown to harden at ambient temperatures and form hydroxyapatite as the only end-product. Animal study results showed showed that CPC resorbed slowly and was replaced by new bone. For some clinical applications, it would

Frontiers of Analytical Metrology for the Silicon Semiconductor Industry

February 1, 2001
Author(s)
Thomas J. Shaffner, David G. Seiler
The grand challenges of the National Technology Roadmap for Semiconductors include affordable scaling, new materials and structures, and yield and reliability. While these encapsulate the high-level perspective and needs of the industry as a whole, there

Gate Oxide Formation under Mild Conditions for Scanning Capacitance Microscopy

February 1, 2001
Author(s)
Duncan McBride, Joseph Kopanski
Scanning Capacitance Microscopy (SCM) can be used to measure doping density in silicon with a spatial resolution of about 10 nm. In order to make such measurements on fabricated devices, the device must be cross-sectioned, and an oxide sufficient to form a
Displaying 45901 - 45925 of 73779
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