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Displaying 43226 - 43250 of 73697

Anion Reactions in Silane Plasmas

May 1, 2002
Author(s)
Alan Gallagher, A A. Howling, C Hollenstein
Previously reported and unpublished measurements of Si xH m anions and electrons in the afterglow of silane discharges are analyzed here. A model of plasma anion chemistry includes two sources of anions, two possible causes of x-x + 1 anion growth, and

Applications of Ultrafast Transient Infrared Spectroscopies

May 1, 2002
Author(s)
T Heimer, Edwin J. Heilweil
Modern techniques for performing ultrafast transient mid-infrared spectroscopy using turnable, broadband infrared probe pulses with multi-channel CCD and infrared focal plane array detection is presented. Novel application of these picosecond and

Assigning and Enforcing Security Policies on Handheld Devices

May 1, 2002
Author(s)
Wayne Jansen, Athanasios T. Karygiannis, Serban I. Gavrila, Vlad Korolev
The proliferation of mobile handheld devices, such as Personal Digital Assistants (PDAs) and tablet computers, within the workplace is expanding rapidly. While providing productivity benefits, the ability of these devices to store and transmit corporate

Atomic Oscillator Strengths by Emission Spectroscopy and Lifetime Measurements

May 1, 2002
Author(s)
Wolfgang L. Wiese, Ulf Griesmann, R Kling, J Musielok
A series of atomic oscillator strengths measurements was carried out in the last seven years at NIST with a combination of emission spectroscopy and lifetime measurements. Several light elements, specifically C, N, O, F and Ne, and two medium-heavy

Collected Publications Related to the Use of Elevators During Fires

May 1, 2002
Author(s)
Richard W. Bukowski, Star R. Burgess, Paul A. Reneke
In the wake of the September 11 attacks in the US provisions for emergency egress from tall buildings are being re-examined, worldwide. Possibilities being discussed include the utilization of protected elevators with stairways for both occupant egress and

Control Strategies for APACTS Micro-Macro-Manipulator-Integration

May 1, 2002
Author(s)
Richard J. Norcross
The Carderock Division of the Naval Surface Warfare Center is developing the Automated Paint Application, Containment, and Treatment System (APACTS). APACTS will apply anti-corrosive and anti-fouling paints to ship hulls in an environmentally sound manner

Cracking in Ceramic/Metal/Polymer Trilayer Systems

May 1, 2002
Author(s)
H Zhao, P Miranda, Brian R. Lawn, X Z. Hu
Fracture and deformation in model brittle-outerlayer/metal-core/polymer substrate trilayer systems in concentrated loading are studied. Model systems for experimental study are fabricated from glass microscope slides glued with epoxy adhesive onto steel

Domain-engineered ferroelectric-pyroelectric detectors for laser metrology

May 1, 2002
Author(s)
John H. Lehman, Harald Gnewuch, Chris Pannell
Ferroelectric pyroelectric detectors are presently used for high accuracy laser metrology. We investigate ways to exploit domain-engineered ferroelectric material such as lithium tantalate to make improved detectors, while understanding changes in the

Dose Meter Calibration System for 193 nm

May 1, 2002
Author(s)
Holger Laabs, Richard D. Jones, Marla L. Dowell
We have established a measurement system for the direct calibration of energy density (dose) meters. It consists of beam-shaping objects, a beamsplitter, calibrated apertures, a beam profile monitor, an energy monitor, and a transfer standard. The 193 nm

Dynamic Expansion of M:N Protection Groups in GMPLS Optical Networks

May 1, 2002
Author(s)
David W. Griffith, Sanghun Lee
In order to provide reliable connections across metropolitan and wide-area optical networks, the network operator must provide some degree of redundancy so that traffic can be switched from damaged working paths to backup paths that are disjoint from the

Effect of Counterface Roughness on Abrasive Wear of Hydroxyapatite

May 1, 2002
Author(s)
Sergei Kalinin, S Jahanmir, L K. Ives
The present study was undertaken to evaluate the effect of surface roughness of glass-infiltrated alumina on the abrasive wear of hydroxyapatite using a pin-on-disk tribometer. Hydroxyapatite was used as a model material to simulate tooth enamel. The wear

Effective Non-Toxic Metallic Fire Suppressants. Final Report (NISTIR 6875)

May 1, 2002
Author(s)
Gregory T. Linteris, M D. Rumminger, Valeri I. Babushok, H K. Chelliah, T Lazzarini, P N. Wanigarathne
The purpose of the project was to: a.) identify which metal species would be effective flame inhibitors, and then b.) attempt to find non-toxic forms of the metal which could be used. Very early in the project, however, we determined that metal species-in

Evaluating Building Integrated Photovoltaic Performance Models

May 1, 2002
Author(s)
Arthur H. Fanney, Brian P. Dougherty, Mark W. Davis
Predictive performance tools could accelerate the implementation of integrated photovoltaics (BIPV. The National Institute of Standards and Technology (NIST) seeks to improve and validate previously developed computer simulation tools with experimental
Displaying 43226 - 43250 of 73697
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