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NIST Authors in Bold

Displaying 2801 - 2825 of 7109

Microwave Characterization of Semiconductors with a Split-Cylinder Cavity

August 1, 2008
Author(s)
Billy F. Riddle, James R. Baker-Jarvis, Michael D. Janezic
In this paper we demonstrate the use of a split-cylinder cavity for characterizing semiconductors over a temperature range of 173 K (-100oC) to 373 K (+100oC) at microwave frequencies (9-30 GHz). Complex permittivity measurements of silicon (Si) and

Forensic Protocol Filtering of Phone Managers

July 24, 2008
Author(s)
Wayne Jansen, Aurelien M. Delaitre
Phone managers are non-forensic tools sometimes used by forensic investigators to recover data from a cell phone when no suitable forensic tool is available for the device. While precautions can be taken to preserve the integrity of data on a cell phone

Reference Material for Assessing Forensic SIM Tools

October 1, 2007
Author(s)
Wayne Jansen, Aurelien M. Delaitre
Subscriber Identity Modules (SIMs) are a fundamental standardized component of most cell phones used worldwide. A SIM can be removed from a phone handset and inserted into another, allowing users to port identity, personal information, and service between

Face Recognition Algorithms surpass humans matching faces across changes in illumination

May 15, 2007
Author(s)
P. Jonathon Phillips, Alice J. O'Toole, Fang Jian, Julianne Ayadd, Nils Penard, Herve Abdi
We compared the accuracy of eight state-of-the-art face recognition algorithms with human performance on the same task. Humans and algorithms determined whether two face images, taken under different illumination conditions, were pictures of the same

Error Analysis For Encoding a Qubit In An Oscillator

January 19, 2006
Author(s)
Scott Glancy, Emanuel Knill
In [5], Gottesman, Kitaev, and Preskill described a method to encode a qubit in the continuous Hilbert space of an oscillator's position and momentum variables. This encoding provides a natural error correction scheme which can correct errors due to small

Authenticating Mobile Device Users Through Image Selection

May 19, 2004
Author(s)
Wayne Jansen
Adequate user authentication is a persistent problem, particularly with mobile devices such as Personal Digital Assistants (PDAs), which tend to be highly personal and at the fringes of an organization's influence. Yet these devices are being used

Network Security Testing

November 1, 2003
Author(s)
Shirley M. Radack
This ITL Bulletin summarizes NIST Special Publication 800-42, Guideline on Network Security Testing, by John Wack, Miles Tracy, and Murugiah Souppaya, which assists organizations in testing their Internet-connected and operational systems. The guide

Large-Scale Modeling of Fire Suppression with Water Sprays

September 2, 2003
Author(s)
Kevin B. McGrattan
The mechanisms underlying fire suppression by water can bedivided into gas and solid phase phenomena. Numerical models ofthese phenomena are dependent on the level of detail given to thecombustion and the fuel pyrolysis processes.Presently, models of gas

SEM Sentinel-SEM Performance Measurement System

August 1, 2001
Author(s)
Bradley N. Damazo, Andras Vladar, Alice V. Ling, Alkan Donmez, Michael T. Postek, Crossley E. Jayewardene
This paper describes the design and implementation of a system for monitoring the performance of a critical dimension measurement scanning electron microscope (CD-SEM). Experiments were performed for tests involving diagnosis of the vacuum system and

Quantum Chemistry

March 1, 2001
Author(s)
Carlos A. Gonzalez
In this short essay, the current status of quantum chemistry as well as the future challenges this discipline have to face in order to become a useful tool in the investigation of large-scale chemical problems is presented.

SEM Sentinel - SEM Performance Measurement System

January 1, 2001
Author(s)
Bradley N. Damazo, Andras Vladar, Alice V. Ling, M A. Donmez, Michael T. Postek, Crossley E. Jayewardene
This paper describes the design and implementation of a system for monitoring the performance of a critical dimension measurement scanning electron microscope (CD-SEM). Experiments were performed for tests involving diagnosis of the vacuum system and

Federal Information Technology Security Assessment Framework

November 28, 2000
Author(s)
E Roback
[Prepared for the CIO Council's Security, Privacy, and Critical Infrastructure Committee] The Federal Information Technology (IT) Security Assessment Framework (or Framework) provides a method for agency officials to 1) determine the current status of

Representation of Axes for Geometric Fitting

December 1, 1996
Author(s)
Ted Hopp
We review methods for representing geometric axes in three dimensions and discuss why these methods have undesirable properties for geometric fitting applications. We then describe a new representation that seems better suited for use in problems of

Visualization of Structural Behavior under Fire

August 12, 2009
Author(s)
Dilip K. Banerjee, William J. Hess, Thomas M. Olano, Judith E. Terrill, John L. Gross
An integrated environment was created to study the interaction among fire, heat transfer, and structural deformation from a typical room fire. The fire, thermal, and structural data were linked with a separate 3-D visualization capability, to provide the
Displaying 2801 - 2825 of 7109
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