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NIST Authors in Bold

Displaying 32076 - 32100 of 73697

The ARFTG Nonlinear Measurements Workshop and NVNA Users Forum

August 1, 2007
Author(s)
Kate Remley, Dominique Schreurs
This paper introduces readers to two informal meetings where microwave engineers can learn techniques, share experiences, and discuss the latest research in nonlinear and large-signal measurements. The Automatic RF Techniques Group ,ARFTG, Nonlinear

The Sampling Oscilloscope as a Microwave Instrument

August 1, 2007
Author(s)
Dylan Williams, Paul D. Hale, Kate Remley
Many modern high-speed oscilloscopes are well suited for precise microwave waveform, modulated-signal, and nonlinear measurements. These oscilloscopes have bandwidths of up to 100 GHz and are available with nominally 50 ? input impedances. Like their low

Web Application Scanners: Definitions and Functions

August 1, 2007
Author(s)
Elizabeth N. Fong, Vadim Okun
There are many commercial software security assurance tools that claim to detect and prevent vulnerabilities in application software. However, a closer look at the tools often leaves one wondering which tools find what flaws? This paper identifies a

Wireless Sensor Network Based on IEEE 1451.0 and IEEE 1451.5-802.11

August 1, 2007
Author(s)
Kang B. Lee, Yuyin Song
This paper describes a wireless sensor network (WSN) based on the Institute of Electrical and Electronics Engineers (IEEE) s 1451.0, 1451.5, and 802.11 standards. The implementation of the IEEE-based WSN was developed at the National Institute of Standards

Workshop on the Evaluation of a Tactical Decision Aid Display

August 1, 2007
Author(s)
William D. Davis, R Vettori, Paul A. Reneke, L D. Brassell, David G. Holmberg, Jodi Kostecki, Jessica Kratchman
On July 26, 2005, the National Institute of Standards and Technology (NIST) conducted a workshop consisting of fire service and fire safety personnel that had two objectives. The first, was to give the attendees a presentation of the history and present

Measurement Science and Technology for Ceramics Innovations

July 31, 2007
Author(s)
Debra L. Kaiser, Robert F. Cook
Innovations in ceramic technologies are often driven by the discovery and introduction of a material with novel or improved behavior that enables realization of a superior component, device or system. Over the past few decades, advanced ceramic materials

A Complete Guide to the Common Vulnerability Scoring System Version 2.0

July 30, 2007
Author(s)
Peter M. Mell, Karen A. Scarfone, Sasha Romanosky
The Common Vulnerability Scoring System (CVSS) provides an open framework for communicating the characteristics and impacts of IT vulnerabilities. CVSS consists of three groups: Base, Temporal and Environmental. Each group produces a numeric score ranging

CVSS-SIG Version 2 History

July 30, 2007
Author(s)
Peter M. Mell, Karen A. Scarfone, Gavin Reid
This document attempts to interpret the history and rationale behind changes made in the Common Vulnerability Scoring System (CVSS) from version 1 to version 2 (referred to as CVSS v1 and v2 in this document.) This document contains multiple appendices

Random Telegraph Signals in n-type ZnO Nanowire Field Effect Transistors at Low Temperature

July 30, 2007
Author(s)
Hao Xiong, Wenyong Wang, Qiliang Li, Curt A. Richter, John S. Suehle, Woong-Ki Hong, Takhee Lee, U Falke
Single-crystal ZnO nanowires have been fabricated as field effect transistors (FETs). The characteristics of low frequency noise in the drain current of n-type ZnO FETs have been investigated through random telegraph signals (RTSs) at 4.2 K. At room

Subcentimeter depth resolution using a single-photon counting time-of-flight laser ranging system at 1550 nm wavelength

July 30, 2007
Author(s)
Ryan E. Warburton, Aongus McCarthy, Andrew M. Wallace, Sergio Hernandez-Marin, Robert Hadfield, Sae Woo Nam, Gerald S. Buller
We demonstrate subcentimeter depth profiling at a stand off distance of 330 m using a time-of-flight approach based on time-correlated single-photon counting. For the first time to our knowledge, the photon-counting time-of-flight technique was

In-Situ Investigation of Water Transport in an Operating PEM Fuel Cell Using Neutron Radiography: Part 2 - Transient Water Accumulation in an Interdigitated Cathode Flow Field

July 27, 2007
Author(s)
Jon P. Owejan, T Trabold, David L. Jacobson, D Baker, Daniel S. Hussey, Muhammad D. Arif
An interdigitated cathode flow field was tested in-situ with neutron radiography to measure the water transport through the porous gas diffusion layer in a PEM fuel cell. Constant current density to open circuit cycles were tested and the resulting liquid

Measuring the Overall Security of Network Configurations Using Attack Graphs

July 27, 2007
Author(s)
Lingyu Wang, Anoop Singhal, Sushil Jajodia
Today?s computer systems face sophisticated intrusions during which multiple vulnerabilities are combined for reaching an attack goal. To quantitatively assess the security of a network, one must first understand the interplay between vulnerabilities and

Neutron Images of the Through-Plane Water Distribution of an Operating PEM Fuel Cell

July 27, 2007
Author(s)
Daniel S. Hussey, David L. Jacobson, Muhammad Arif, Jon P. Owejan, Jeffrey J. Gagliardo, T Trabold
Neutron imaging has proven an invaluable tool for water metrology in operating proton exchange membrane fuel cells. Due to limitations in scintillator-based detector resolution, neutron imaging has been applied only to assessing the in-plane water

Border Gateway Protocol Security

July 26, 2007
Author(s)
Shirley M. Radack
The Border Gateway Protocol (BGP) plays a critical role in the effective operation of the Internet. BGP is used to update routing information between major systems, which makes it possible for systems connected to the Internet to receive and transmit

Controlled Exchange Interaction Between Pairs of Neutral Atoms in an Optical Lattice

July 26, 2007
Author(s)
M Anderlini, Patricia J. Lee, Ben L. Brown, Jennifer Sebby-Strabley, William D. Phillips, James V. Porto
Ultra-cold atoms trapped by light, with their inherent quantum coherence and controllability, provide an attractive system for quantum information and for the simulation of complex problems in condensed matter physics. Quantum information processing

Engineering Safety, Applied Mechanics, and Nondestructive Evaluation

July 26, 2007
Author(s)
Jeffrey T. Fong, Owen F. Hedden
The American Society of Mechanical Engineers (ASME) Pressure Vessels and Piping (PVP) Division, through its Materials and Fabrication Committee and Code and Standards Committee, sponsors a 2-day symposium on Nondestructive Evaluation (NDE) in honor of Dr
Displaying 32076 - 32100 of 73697
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