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Displaying 2201 - 2225 of 5221

MEASURING THE IMPACT OF EDUCATION AND TRAINING

January 15, 2013
Author(s)
Georgia L. Harris
As metrologists we are typically subject matter experts (SMEs) in a technical area of measurement. However, most of us are not experts in measuring the value or impact of education and training efforts using standard models for evaluation. This paper will

Measurement of Scattering and Absorption Cross Sections of Dyed Microspheres

January 14, 2013
Author(s)
Adolfas Gaigalas, Steven J. Choquette
Measurements of absorbance and fluorescence emission were carried out on aqueous suspensions of polystyrene (PS) microspheres with a diameter of 2.5 µm. Microspheres with and without green BODIPY@ dye were measured. Placing the suspension inside an

AGVs and Forklifts Gaining Sight for Safety

January 10, 2013
Author(s)
Roger V. Bostelman
Forklifts and automated guided vehicles are useful tools for the manufacturing industry. With regard to safety of workers (and equipment) near industrial vehicles, there are issues when using either manned or automated powered industrial vehicles in

Design of the permanent magnet system for NIST-4

December 21, 2012
Author(s)
Stephan Schlamminger
At the National Institute of Standards and Technology a new watt balance, NIST-4, is currently being designed. This apparatus will be used to realize the unit of mass after the redefinition of the SI has taken effect. In order to ensure smooth operation

Indentation device for in situ Raman spectroscopic and optical studies

December 12, 2012
Author(s)
Yvonne B. Gerbig, Chris A. Michaels, Aaron M. Forster, John W. Hettenhouser, Walter E. Byrd, Dylan J. Morris, Robert F. Cook
Instrumented indentation is a widely used technique to study the mechanical behavior of materials at small length scales and thus has been exploited in particular for metals, ceramics, glasses, and polymers. Mechanical tests of bulk materials, microscopic

Silicon Micromachines for Fun and Profit

December 12, 2012
Author(s)
David Bishop, Flavio Pardo, Cris Bolle, Randy Giles, Vladimir Aksyuk
Over the last decade or so a group of us, while working at Bell Labs, have been able to develop a large number of silicon micromachines for a wide range of applications. In this article, which is part of a special volume to celebrate the career of

Single bead detection with a NMR micro capillary probe

December 6, 2012
Author(s)
Yoshihiro Nakashima, Michael A. Boss, Stephen E. Russek, John M. Moreland
We have developed a nuclear magnetic resonance (NMR) microcapillary probe for the detection of single magnetic microbeads. The geometry of the probe has been optimized so that the signal from the background water has a similar magnitude compared to the
Displaying 2201 - 2225 of 5221
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