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Displaying 32601 - 32625 of 74369
John G. Hagedorn, Joy Dunkers, Steven G. Satterfield, Adele Peskin, John T. Kelso, Judith E. Terrill
This paper describes a set of tools for performing measurements of objects in a virtual reality based immersive visualization environment. These tools enable the use of the immersive environment as an instrument for extracting quantitative information from
We present an overview of the coherent magnetic precessional dynamics induced by the spin transfer effect in magnetic nanostructures. The precessional frequencies of the magnetic oscillators can be tuned over a range of several gigahertz by varying the dc
We have combined a commercially available, variable length coaxial delay line (trombone line) with a high resolution linear translation system. The result is better resolution and lower uncertainty in the achievable delays than previously available. The
Jolene Splett, Christopher N. McCowan, Hariharan K. Iyer, Chih-Ming Wang
The purpose of this recommended practice guide is to demonstrate how to determine the uncertainty associated with mean absorbed energy of specimens tested on a Charpy impact machine. We assume that the Charpy machine has successfully met the requirements
NIST has coordinated annual evaluations of text-independent speaker recognition from 1996 to 2006. This paper discusses the last three of these, which utilized conversational speech data from the Mixer Corpora recently collected by the Linguistic Data
Thomas A. Siewert, Joseph D. McColskey, Richard E. Ricker
The Materials Reliability and Metallurgy Divisions have expanded their efforts to advance the technology for the construction, repair, and inspection of pipelines. One key factor is to identify and prioritize the research needs of the pipeline community
Micromagnetics is based on the one hand on a continuum approximation of exchange interactions, including boundary conditions, on the other hand on Maxwell equations in the non-propagative (static) limit for the evaluation of the demagnetizing field. The
Samuel L. Manzello, John R. Shields, Jiann C. Yang, Yoshihiko Hayashi, Daisaku Nii
An experimental apparatus has been constructed to generate a controlled and repeatable size and mass distribution of glowing firebrands. The present study reports on a series of experiments conducted in order to characterize the performance of this
A new method of calibrating the stiffness of atomic force microscope (AFM) cantilevers is demonstrated using a unique array of uniform microfabricated reference cantilevers. A series of force-distance curves were obtained using a commercial AFM test
Katherine E. Sharpless, Jeanice M. Brown Thomas, David L. Duewer, K. Putzbach, Catherine A. Rimmer, Lane C. Sander, Michele M. Schantz, Stephen A. Wise, T. Yarita, James H. Yen
Nelson P. Bryner, Daniel M. Madrzykowski, William L. Grosshandler
On February 20, 2003, during a band performance, pyrotechnics ignited foam insulation lining the walls and ceiling of the platform that was being used as a stage in The Station Nightclub, Rhode Island, USA. The fire spread quickly along the foam lined
Nelson P. Bryner, Daniel M. Madrzykowski, William L. Grosshandler
On February 20, 2003, during a band performance, pyrotechnics ignited foam insulation lining the walls and ceiling of the platform that was being used as a stage in The Station nightclub, Rhode Island, USA. The fire spread quickly along the foam lined
We give some background on the Software Assurance Metrics And Tool Evaluation (SAMATE) project and our decision to work on static source code security analyzers. We give our experience bringing government, vendors, and users together to develop a