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NIST Authors in Bold

Displaying 30826 - 30850 of 74178

Interoperability Testing for Shop Floor Measurement

December 28, 2007
Author(s)
Frederick M. Proctor, William G. Rippey, John A. Horst, Joseph Falco, Thomas Kramer
Manufactured parts are typically inspected to ensure quality. Inspection involves equipment and software from many different vendors, and interoperability is a major problem faced by manufacturers. The I++ Dimensional Measuring Equipment (DME)

Robot Simulation Physics Validation

December 28, 2007
Author(s)
Christopher T. Pepper, Stephen B. Balakirsky, Christopher J. Scrapper Jr
Computer simulation of robot performance is an essential tool for the development of robot software. In order for simulation results to be valid for implementation, model accuracy is important. If developers use a robot model that is not similar enough to

The Evolution of Performance Metrics in the RoboCup Rescue Virtual Robot Competition

December 28, 2007
Author(s)
Stephen B. Balakirsky, Christopher J. Scrapper Jr, Stefano Carpin
This paper presents an overview of the 2007 RoboCup Rescue Virtual Robot Competition and the performance metrics that were used to judge the competition. For this competition, great effort was placed in bringing together researchers with diverse interests

Toward Quantitative Fluorescence Measurements with Multicolor Flow Cytometry

December 28, 2007
Author(s)
Lili Wang, Adolfas Gaigalas, Gerald Marti, Fatima Abbasi, Robert A. Hoffman
A procedure is presented for calibrating the output of a multicolor flow cytometer in units of antibodies bound per cell (ABC). The procedure involves two steps. First, each of the fluorescence channels of the flow cytometer is calibrated using Ultra

Terahertz Spectroscopy of Biomolecules

December 22, 2007
Author(s)
David F. Plusquellic, Edwin J. Heilweil
Far-infrared (Terahertz or THz) spectroscopic investigations of condensed-phase biological and model organic species including substituted benzenes, amino acids, sugars, polypeptides, small proteins and DNA/RNA are reviewed. These studies reveal that for

'Ballistic' vs. 'Diffusive' Transport in Current-Induced Magnetization Switching

December 21, 2007
Author(s)
N Theodoropoulou, Abhishek Sharma, W Pratt, J. Bass, Mark D. Stiles, J Xiao
We test whether current-induced magnetization switching due to spin-transfer-torque in ferromagnetic/non-magnetic/ferromagnetic (F/N/F) trilayers changes significantly when scattering within the N-metal layers is changed from ballistic to diffusive. Here

NCWM PUB 15, Interim Meeting Agenda - January 2007

December 19, 2007
Author(s)
T Coleman, Steven E. Cook, Linda D. Crown, Ralph A. Richter, L T. Sebring, R C. Suiter, Juana S. Williams
This is the agenda for the four Standing Committees of the National Conference on Weights and Measures. This meeting will be held at the the Omni Jacksonville, Jacksonville, FL, on January 21 - 24, 2007.

Securing External Computers and Other Devices Used by Teleworkers

December 19, 2007
Author(s)
Shirley M. Radack
This bulletin summarizes the recommendations developed by NIST to help workers secure their external devices that they need for teleworking. The bulletin covers background information on telework technologies and the security issues related to the use of

Ultrafast Dynamics of Model Molecular Photoswitches in Solid Phase

December 18, 2007
Author(s)
Tung T. To, Edwin J. Heilweil
Ultraviolet pump, infrared probe transient absorption studies of the chelatable compound 1, [Mn{?5-C5H4C(O)(SCH3)3}(CO)3], dispersed in room temperature, ~25 m thick polyacryclonitrile (PAN) films are reported for the first time. Irradiation of 1 at 289 nm

Air-Side Velocity Distribution in Finned-Tube Heat Exchangers

December 17, 2007
Author(s)
David A. Yashar, Hong H. Cho
The performance of finned tube heat exchangers is greatly affected by the distribution of the air that passes through it. The air side velocity distribution is largely left unknown because it is difficult to measure accurately. In this study, we examined

Biocompatibility of atomic layer deposited alumina thin films

December 17, 2007
Author(s)
Dudley Finch, Tammy L. Oreskovic, Krishna Ramadurai, Cari F. Herrmann, Steven George, Roop L. Mahajan
Presented in this paper is a study of the biocompatibility of a hydrophilic alumina thin film and a hydrophobic variation deposited on standard glass cover slips using atomic layer deposition (ALD) techniques. The pure alumina ALD coating exhibits a water

Imaging the interface of epitaxial graphene with silicon carbide via scanning tunneling microscopy

December 14, 2007
Author(s)
Gregory M. Rutter, N Guisinger, Jason Crain, Emily Jarvis, Mark D. Stiles, T Li, P First, Joseph A. Stroscio
The potential for electronics based on graphene, a single layer of sp2-bonded carbon atoms, rests on the ability to fabricate graphene into useful devices. Graphene grown epitaxially on SiC substrates offers an avenue for carbon-based electronics allowing

Nano- and Atomic-Scale Length Metrology

December 14, 2007
Author(s)
Theodore V. Vorburger, Ronald G. Dixson, Joseph Fu, Ndubuisi G. Orji, Shaw C. Feng, Michael W. Cresswell, Richard A. Allen, William F. Guthrie, Wei Chu

Do Plastic Zones Form at Crack Tips in Silicate Glasses?

December 13, 2007
Author(s)
Jose Lopez-Cepero, Sheldon M. Wiederhorn, Theo Fett, Jean-Pierre Guin
In a number of recent studies, the claim has been made that silicate glasses fracture by the formation, growth and coalescence of cavities, in the same way that metals do but at a much smaller scale. Evidence for cavity formation comes from the examination
Displaying 30826 - 30850 of 74178