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Displaying 35726 - 35750 of 73697

Report on the TREC-5 Confusion Track

October 24, 2005
Author(s)
Paul B. Kantor, Ellen M. Voorhees
This paper is the track report for the TREC-5 confusion track. For TREC-5, retrieval from corrupted data was studied through retrieval of specific target documents from a corpus that was corrupted by applying OCR techniques to page images of varying

The TREC-5 Database Merging Track

October 24, 2005
Author(s)
Ellen M. Voorhees
This paper is the track report for the TREC-5 database merging track. The report motivates the database merging problem, defines the task performed by the participants in detail, and summarizes the main results of the track.

Optical Oscillators with High Stability and Low Timing Jitter

October 22, 2005
Author(s)
Leo W. Hollberg, Christopher W. Oates, Scott A. Diddams
Frequency stabilized cw lasers achieve exceptional frequency stability using high finesse Fabry-Perot cavities. That stability can be transferred to other optical frequencies with mode-locked lasers and provides optical and electronic pulses with ultra-low

Acoustic Modes and Elastic Properties of Polymeric Nanostructures

October 21, 2005
Author(s)
R Hartschuh, A Kisliuk, V N. Novikov, Alexei Sokolov, Paul R. Heyliger, Colm Flannery, Ward L. Johnson, Christopher Soles, Wen-Li Wu
Fabricating mechanically robust polymer structures with nanoscale dimensions is critical for a wide range of emerging technologies. The rigidity of such structures is expected to change as the feature sizes approach the characteristic dimensions of the

Resistivity of Nanometer-Scale Films and Interconnects: Model and Simulation

October 20, 2005
Author(s)
Emre Yarimbiyik, Harry A. Schafft, Richard A. Allen, Mona Zahgoul, David L. Blackburn
We have developed a highly versatile simulation program for examining the impact of reduced dimensions on resistivity that goes beyond the work of others, e.g. Fuchs [1] and Mayadas and Shatzkes [2]. The program can simulate the effects of surface and

Rotating-radio-frequency ion traps

October 20, 2005
Author(s)
T Hasegawa, John J. Bollinger
We propose a new ion trap, the rotating-rf trap, in which motion of a charged particle is described not by Mathieu-type functions but by trigonometric functions. In the rotating-rf trap, a quadrupole electric field confines charged particles, whereas in a

Cell Phone Forensics Tools: An Overview and Analysis

October 19, 2005
Author(s)
Richard Ayers, Wayne Jansen, Nicolas Cilleros, Ronan Daniellou
Cell phones and other handheld devices incorporating cell phone capabilities (e.g., Personal Digital Assistants (PDAs) phones) are ubiquitous. Rather than just placing calls, certain phones allow users to perform additional tasks such as SMS (Short Message

Dissipation of Oxygen From Outward Leak of Closed Circuit Breathing Device

October 18, 2005
Author(s)
Kathryn M. Butler, Rodney A. Bryant, J G. Kovac
Closed circuit breathing devices recycle exhaled air after scrubbing carbon dioxide and adding make-up oxygen from a tank of pure oxygen. Use of this equipment allows first responders to work for up to four hours without swapping out cylinders

Application of carbon nanotube coatings for laser measurements

October 17, 2005
Author(s)
John H. Lehman, Paul Rice, Natalia Varaksa, Chaiwat Engtrakul, Anne Dillon
We have demonstrated coatings based on carbon nanotubes (CNTs) on a variety of detector platforms for laser power and energy measurement standards. These coatings must be resistant to damage and aging while maintaining desirable optical and thermal

Handovers and Interference Mitigation in Healthcare Environments

October 17, 2005
Author(s)
Nicolas Chevrollier, Nicolas Montavont, Nada T. Golmie
In this article, we consider candidate wireless technologies such as IEEE 802.11b, and IEEE 802.15.4 that can support medical and healthcare informatics applications. The main questions that we try to answer are: (1) is there any potential for significant

Basis for Appropriate Safety Levels for Tall Buildings.

October 16, 2005
Author(s)
Richard W. Bukowski
Safety levels are a public policy decision made by regulators and not the technical community. It is appropriate for the technical community to suggest technical justification for safety levels, performance levels that can be achieved, and their associated

Challenges to Fire Safety in Tall Buildings.

October 16, 2005
Author(s)
Richard G. Gann
In order to increase the chances of survival during a fire emergency, the time available for a person to leave the danger zone must be longer than the time needed to make the escape. For tall buildings, providing time for people to reach safety requires

Emergency Egress and Access.

October 16, 2005
Author(s)
Jason D. Averill
Tall buildings present a unique and challenging egress environment. The very aspect ratio which makes tall buildings economically desirable accentuates the impact of egress and other building systems. Further, recent events have raised important questions
Displaying 35726 - 35750 of 73697
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