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Search Publications

NIST Authors in Bold

Displaying 40676 - 40700 of 74095

Osteoblast Cell Membrane Hybrid Bilayers for Studying Cell-Cell Interactions

September 30, 2003
Author(s)
John T. Elliott, Alessandro Tona, John T. Woodward IV, Curtis W. Meuse, H M. Elgendy, Anne L. Plant
Osteopath-like cells were grown on a surface that presents cell membrane components to the cells in culture. The culture surface was a bilayer formed by the interaction of osteoblast plasma membrane vesicles with an alkanethiol monolayer. We examined the

Semiconductor Electronics Division

September 30, 2003
Author(s)
David G. Seiler, Erik M. Secula
This is a high-level, full-color brochure detailing the activities and challenges of the Semiconductor Electronics Division. Topics include Division history, nanotechnology, MEMS, electrical test structures, power electronics, optical and electrical

Thickness Evaluation for 2nm SiO2 Films, a Comparison of Ellipsometric, Capacitance-Voltage and HRTEM Measurements

September 30, 2003
Author(s)
James R. Ehrstein, Curt A. Richter, Deane Chandler-Horowitz, Eric M. Vogel, Donnie R. Ricks, Chadwin Young, Steve Spencer, Shweta Shah, Dennis Maher, Brendan C. Foran, Alain C. Diebold, Pui-Yee Hung
We have completed a comparison of SiO2 film thicknesses obtained with the three dominant measurement techniques used in the IC industry . This work is directed at evaluating metrology capability that might support NIST- traceable Reference Materials for

Fluorescence Thermometry in Microfluidics

September 29, 2003
Author(s)
David J. Ross, Laurie E. Locascio
Two techniques are described for the measurement of fluid temperatures in microfluidic systems based on temperature-dependent fluorescence. In the first technique, a single, strongly temperature-dependent fluorophore, rhodamine B, is used as the basis for

Recommendations for Application of CO 2 -Based Demand Controlled Ventilation Including Proposed Guidance for ASHRAE Standard 62 and California's Title 24

September 29, 2003
Author(s)
Andrew K. Persily, Jim Braun, Steven J. Emmerich, Kevin Mercer, Tom Lawerence
Carbon dioxide (CO2) based demand controlled ventilation (DCV) has been proposed and implemented for many years as a strategy for increasing energy efficiency by providing outdoor air ventilation rates based on actual occupancy rather than design occupancy

Composition Verification of AlGaAs Epitaxial Layers using Inductively Coupled Plasma Optical-Emission Spectroscopy

September 28, 2003
Author(s)
Kristine A. Bertness, Todd E. Harvey, Albert J. Paul, Larry Robins, Gregory C. Turk, Therese A. Butler, Marc L. Salit
We have applied an analytical chemistry method, inductively coupled plasma optical-emission spectroscopy (ICP-OES), to increase the accuracy of composition measurement of AlGaAs epitaxial thin films. ICP-OES results were compared with composition

Prototype system for superconducting quantum interference device multiplexing of large-format transition-edge sensor arrays

September 25, 2003
Author(s)
Carl D. Reintsema, Joern Beyer, Sae Woo Nam, Steven Deiker, Gene C. Hilton, Kent D. Irwin, Joel N. Ullom, Leila R. Vale, Michael MacIntosh
We discuss the implementation of a time-division SQUID multiplexing system for the instrumentation of large-format transition-edge sensors (TES) arrays. We cover design and integration issues concerning cryogenic SQUID multiplexers and amplifiers, signal

Overview of NIST Metrology Development for the Semiconductor Industry

September 23, 2003
Author(s)
Stephen Knight
The National Institute of Standards and Technology metrology development for the semiconductor industry and its supporting infrastructure is a broad set of programs directed at many of the critical metrology needs. This paper will give examples of specific

Smart Machining Research at the National Institute of Standards and Technology

September 23, 2003
Author(s)
Kevin K. Jurrens, Johannes A. Soons, Robert W. Ivester
This paper presents an overview of collaborative research activities conducted by staff of the Manufacturing Engineering Laboratory at the National Institute of Standards and Technology to address the enabling metrology and standards infrastructure needed

A Phase Locked Frequency Comb from an All-Fibre Supercontinuum Source

September 22, 2003
Author(s)
Brian Washburn, Jeffrey W. Nicholson, Scott Diddams, M. Yan, C. G. Jorgensen, Nathan R. Newbury
A phase-locked, frequency comb in the near-infrared is presented. Self-referencing detection and stabilization of the carrier-envelope-offset frequency is demonstrated in an all-fibre supercontinuum source, based on an amplified, modelocked erbium-fibre

Basic Mass Metrology (Spanish Language)

September 22, 2003
Author(s)
Georgia L. Harris
Basic Mass Metrology CD-ROM training course (Spanish language). Course is designed to run after the CD is inserted in a Windows-based computer.

Phase Transitions Within the Isolated Polymer Molecule: Coupling of the Polymer Threading a Membrane Transition to the Helix-Random Coil, the Collapse, the Adsorption, and the Equilibrium Polymerization Transitions

September 22, 2003
Author(s)
Edmund A. DiMarzio, John J. Kasianowicz
The polymer threading a membrane transition (PTM), which is a first-order thermodynamic phase transition for an isolated linear polymer in the limit of infinite molecular weight, is coupled to the other 4 phase transitions of the isolated polymer molecule

Structure and Magnetic Properties of Electrodeposition Co on n-GaAs (001)

September 19, 2003
Author(s)
A X. Ford, John E. Bonevich, Robert D. McMichael, Mark D. Vaudin, Thomas P. Moffat
Co thin films have been electrodeposited on n-type (001) GaAs. The structure and texture of the films were investigated using x-ray diffraction (XRD) and transmission electron microscopy (TEM) while the magnetic properties were examined using a vibrating

Reliability-Based Method for Service Life Prediction of Materials

September 17, 2003
Author(s)
Christopher C. White, Jonathan W. Martin, S F. Weber, L Shultz
Standard test methods, such as ASTM C719, evaluate sealant performance though threshold test measurements. This method and its derivatives do not offer reliable predictions of in-service performance. This presentation will detail efforts to move away from

Scale Model Flames for Determining the Heat Release Rate from Burning Polymers

September 17, 2003
Author(s)
Gregory T. Linteris, I P. Rafferty
The utility of flame size for the assessment of the heat release rate of burning polymers has been studied. Six polymers were tested in the NIST cone calorimeter to determine their heat release rate, and their flame height, area, and volume. A reduced

Suppression of Cup-Burner Flames

September 17, 2003
Author(s)
F Takahashi, Gregory T. Linteris, V Katta
The unsteady suppression process of a laminar methane-air co-flow diffusion flame formed on a cup burner has been studied experimentally and numerically in normal earth gravity. The computation uses a time-dependent direct numerical simulation with

Some Issues Relating to Performance Evaluation of LADARs

September 16, 2003
Author(s)
Geraldine S. Cheok, William C. Stone, Christoph J. Witzgall
The use and scope of LADAR applications continues to expand as the technology matures. This growth is reflected in NIST's experience with research into the applications of LADARs for construction, manufacturing, and autonomous vehicle navigation. However

Terrain Characterization from Ground-Based LADAR

September 16, 2003
Author(s)
Christoph J. Witzgall, Geraldine Cheok, David E. Gilsinn
Test runs of Army Research Laboratory s (ARL) autonomous vehicle (Experimental Unmanned Vehicle, XUV) were followed by the acquisition of high resolution scans of selected regions of the test course. These scans were used to i) determine terrain features

Kinetic Isotope Effects in the Active Site of B-Subtilis Chorismate Mutase

September 15, 2003
Author(s)
S. E. Worthington, A. E. Roitberg, Morris Krauss
Kinetic Isotope Effects are determined for the enzyme-catalyzed Claisen rearrangement of chorismate to prephenate using computational methods. The reported kinetic isotope effects compare reasonably well with the few available experimental values. The
Displaying 40676 - 40700 of 74095
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