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Displaying 13126 - 13150 of 17285

Accurate Picoscale Forces for Insitu Calibration of AFM

September 3, 2009
Author(s)
Koo-Hyun Chung, Gordon A. Shaw, Jon R. Pratt
The force sensitivity of an atomic force microscope is calibrated directly using an in situ realization of primary electrostatic forces ranging from 320 pN to 3.3 nN with accuracy of a few percent. The absolute accuracy of a common atomic force microscope

Properties of Smoke from Overheated Materials in Low-Gravity

January 20, 2009
Author(s)
David L. Urban, Gary A. Ruff, Thomas Cleary, Jiann Yang, George Mulholland, Zeng-guang Yuan
Smoke particle size measurements were obtained under low-gravity conditions by overheating several materials typical of those found in spacecraft. The measurements included integral measurements of the smoke particles and physical sample of the particles

An Estimate of Effect Size Based on the Mann-Whitney Statistic

October 16, 2008
Author(s)
James H. Yen
Meta analysis, the statistical synthesis of results from several different studies, often involves combining estimates of effect sizefrom several experiments. The standardized mean difference is one of the most commonly used estimates of effect size

Development of the Atomic and Molecular Data Markup Language for Internet Data Exchange

October 16, 2008
Author(s)
Y Ralchenko, R Clark, D Humbert, David R. Schultz, T Kato, Y J. Rhee
Accelerated development of the Internet technologies, including those relevant to the atomic and molecular physics, poses new requirements for the proper communication between computers, users and applications. To this end, a new standard for atomic and

Using the BACnet Communications DLL v1.0

September 29, 2008
Author(s)
Michael A. Galler
The BACnet standard [1] defines a communication protocol for information exchange between components of a distributed building automation and control system. The BACnet Communications Dynamically Linked Library (DLL) enables researchers to implement

Violation of Cauchy-Schwarz Inequality in the Macroscopic Regime

June 10, 2008
Author(s)
Alberto M. Marino, V Boyer, Paul D. Lett
We have observed a violation of the Cauchy-Schwarz inequality in the macroscopic regime by more than 8 standard deviations. The violation has been obtained while filtering out only the low frequency noise of the quantum-correlated beams that results from

Microfabricated Laser Saturated Absorption Spectrometer

May 14, 2007
Author(s)
Svenja A. Knappe, Hugh Robinson, Leo W. Hollberg
We demonstrate a miniature microfabricated laser saturated absorption spectrometer. The system consists of miniature optics, a microfabricated Rb vapor cell, heaters, and a photodetector, all contained within a volume of 0.1 cm 3. Saturated absorption

Spectrally Tunable Sources for Advanced Radiometric Applications

October 1, 2006
Author(s)
Steven W. Brown, Joseph P. Rice, J D. Jackson, Jorge E. Neira, Bettye C. Johnson
A common radiometric platform for the development of application-specific metrics to quantify the performance of sensors and systems is described. Using this platform, systems may be quantified in terms of the accuracy of measurements of standardized sets

The Role of Semantic Roles in Disambiguating Verb Senses

December 19, 2005
Author(s)
Hoa T. Dang, Martha S. Palmer
We describe an automatic Word Sense Disambiguation (WSD) system that disambiguates verb senses using syntactic and semantic features that encode information about predicate arguments and semantic classes. Our system performs better than the best published

A Failure Analysis of an Experimental AIMgB14 Cutting Tools

January 1, 2005
Author(s)
J L. Evans, Laurent Deshayes, D G. Bhat, S A. Batzer
A recently developed ultra-hard boride-based material, AlMgB14, has been fabricated into a standard cutting tool geometry (TPG-222) and tested in the single-point turning of Ti-6Al-4V. The initial testing was conducted to compare this new cutting tool?s
Displaying 13126 - 13150 of 17285
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