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Displaying 49151 - 49175 of 143721

Space-based photometric precision from ground-based telescopes

July 1, 2010
Author(s)
Peter C. Zimmer, John T. McGraw, Anthony B. Hull, Daniel C. Zirzow, Steven W. Brown, Claire E. Cramer, Gerald T. Fraser, Keith R. Lykke, Allan W. Smith, John T. Woodward IV, Christopher W. Stubbs, Mark R. Ackermann, Dean C. Hines
Ground-based telescopes supported by lidar and spectrophotometric auxiliary instrumentation can attain space-based precision for all-sky photometry, with uncertainties dominated by fundamental photon counting statistics. Earth‟s atmosphere is a wavelength-

Topography measurements for correlations of standard cartridge cases

July 1, 2010
Author(s)
Theodore V. Vorburger, Jun-Feng Song, Wei Chu, Thomas Brian Renegar, Xiaoyu Alan Zheng, James H. Yen, Robert M. Thompson, Richard M. Silver, Benjamin Bachrach, Martin Ols
NIST Standard Reference Materials (SRM) 2460 Standard Bullets and 2461 Standard Cartridge Cases are intended for use as check standards for crime laboratories to help verify that their computerized optical imaging equipment for ballistics image

Train the Trainer: Five Steps of Adult Learning Activities

July 1, 2010
Author(s)
Georgia L. Harris
This article is part of a series on Professional Development for NCSLI and Metrology Trainers. This article presents guidance on the five steps of adult learning for adult training events and conferences.

Ultrahigh finesse low mode volume Fabry-Perot microcavity

July 1, 2010
Author(s)
Andreas Muller, Edward B. Flagg, John R. Lawall, Glenn S. Solomon
Ultralow loss concave micromirrors with radii of curvature below 60 um were fabricated by laser ablation and reflective coatings. A 10 um long microcavity with a mode volume of 40 um^3 was set up with two such mirrors and the cavity linewidth measured both

WIND DRIVEN FIRES IN STRUCTURES

July 1, 2010
Author(s)
Daniel M. Madrzykowski, Stephen Kerber
Fires in high-rise buildings create unique safety challenges for building occupants and fire fighters. Smoke and heat spreading through the corridors and the stairs of a building during a fire can limit building occupants ability to escape and can limit

Computer-Controlled Thermal Cycling Tool to Aid in SiC Module Package Characterization

June 30, 2010
Author(s)
Madelaine H. Hernandez, Jose M. Ortiz, Brian J. Grummel, Allen R. Hefner Jr., David W. Berning, Colleen E. Hood, Patrick McCluskey
A software-controlled thermal cycling test system developed for SiC module package characterization is presented. Its interface permits the flexible definition of testing parameters like variable data acquisition rates and customizable cycle transitions

Developing a Sustainability Manufacturing Maturity Model

June 30, 2010
Author(s)
Mahesh Mani
Sustainable manufacturing (SM) broadly implies the development of innovative manufacturing sciences and technologies that span the life cycle of products and services to minimize negative environmental impacts, conserve energy and natural resources, are

Forensics Web Services

June 30, 2010
Author(s)
Anoop Singhal, Murat Gunestas, Duminda Wijesekera
Web services are currently a preferred way to architect and provide complex services. This complexity arises due to the composition of new services and dynamically invoking existing services. These compositions create service inter-dependencies that can be

Human Assisted Speaker Recognition in NIST 2010 Speaker Recognition Evaluation

June 30, 2010
Author(s)
Alvin F. Martin, Craig S. Greenberg
The 2010 NIST Speaker Recognition Evaluation or SRE10 (see SLTC Newsletter, July 2010) included a pilot test of human assisted speaker recognition (HASR). This test, which was open to sites whether or not they participated in the main evaluation of fully

Interim Report on the Examination of Corrosion Damage in Homes Constructed with Imported Wallboard: Examination of Samples Received September 28, 2009

June 30, 2010
Author(s)
David J. Pitchure, Richard E. Ricker, Maureen E. Williams, Sandra W. Claggett
Since many household systems are fabricated with metallic materials, changes to the household environment that accelerate corrosion will increase the failure rates of these systems. Recently, increased failure rates have been reported in homes constructed
Displaying 49151 - 49175 of 143721
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