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NIST Authors in Bold

Displaying 27926 - 27950 of 74165

A Quality Pre-Processor for Biological Cell Images

November 30, 2009
Author(s)
Adele P. Peskin, Karen Kafadar, Alden A. Dima
We have developed a method to rapidly test the quality of a biological image, to identify appropriate segmentation methods, if any, that will render high quality segmentations for the cells within that image. The key contribution is the development of a

FIXED-POINT PROPERTIES OF H2O AND D2O

November 30, 2009
Author(s)
Allan Harvey
Tables for inclusion in the 2010-2011 edition of the CRC Handbook of Chemistry and Physics include: Fixed-point properties of H2O and D2O; Properties of ice and supercooled water; Vapor pressure of ice; Melting point of ice as a function of pressure

IPv6 Test Methods: General Description and Validation

November 30, 2009
Author(s)
J. S. Nightingale
The USG profile for IPv6 specifies requirements for host, router and network protection devices (NPD) and this document specifies the validation requirements for test methods and test specifications used to test these devices. It has become the practice

Rapidly-Deployable Mesh Network Testbed

November 30, 2009
Author(s)
Michael R. Souryal, Nader Moayeri, Andreas Wapf
This paper describes a wireless mesh network testbed for research in rapid deployment and auto-configuration of mesh nodes. Motivated by the needs of first responders and military personnel arriving to an incident area, we developed and tested an automated

Rethinking Egress: A Vision for the Future

November 30, 2009
Author(s)
Jason D. Averill, Richard D. Peacock
New technologies and research are redefining the state-of-the-art in building evacuation. The time is right to rethink the entire infrastructure of egress from buildings in light new opportunities to address the economic and life-safety issues

Stochastic Modeling of Coaxial-Connector Repeatability Errors

November 30, 2009
Author(s)
Arkadiusz C. Lewandowski, Dylan F. Williams
We propose a new description of connector or repeatability errors for coaxial one-port devices. Our approach is based on a stochastic model constructed as a luped-element equivalent circuit with randomly varying frequency-independent parameters. We

The Benefits of Network Coding over a Wireless Backbone

November 30, 2009
Author(s)
Hui Guo, Yi Qian, Kejie Lu, Nader Moayeri
Network coding is a promising technology that can effectively improve the efficiency and capacity of multi-hop wireless networks by exploiting the broadcast nature of the wireless medium. However, existing studies have demonstrated that the benefits of

USGv6 Testing Program User's Guide

November 30, 2009
Author(s)
J. S. Nightingale
OMB Memorandum M-05-22 directed the National Institute of Standards and Technology (NIST) to develop the technical infrastructure (standards and testing) necessary to support wide scale adoption of IPv6 in the US Government (USG). Upon detailed inspection

Solutions of the Maxwell equations and photon wave functions

November 26, 2009
Author(s)
Peter J. Mohr
Properties of six-component electromagnetic field solutions of a matrix form of the Maxwell equations, analogous to the four-component solutions of the Dirac equation, are described. It is shown that the six-component equation, including sources, is

Structure and Hydration of Membranes Embedded with Voltage-Sensing Domains

November 26, 2009
Author(s)
Dmitriy Krepkiy, Mihaela Mihailescu, J. Alfredo Freites, Eric V. Schow, David Worcester, Klaus Gawrisch, Douglas Tobias, Stephen White, Kenton J. Swartz
Despite the growing number of atomic-resolution membrane protein structures, direct structural information about proteins in their native membrane environment is scarce. This problem is particularly relevant in the case of the highly-charged S1-S4 voltage

Electrical Conductivity and Relaxation in Poly(3-hexylthiophene)

November 25, 2009
Author(s)
Jan Obrzut, Kirt A. Page
ABSTRACT: We studied the complex conductivity of regio-regular poly(3-hexylthiophene) (P3HT) in the temperature range between 193K to 333 K (-80 C to 60 C) and in the frequency range from the direct current (DC) to 12 GHz. The identified relaxation process

Gas Flowmeter Calibrations With the 26 m 3 PVTt Standard

November 25, 2009
Author(s)
Aaron N. Johnson, John D. Wright
This document describes NIST s 26 m3 pressure, volume, temperature, and time (PVTt) primary flow standard. This standard is used to calibrate gas flow meters over a range extending from 200 standard L/min to 77,000 standard L/min where the reference
Displaying 27926 - 27950 of 74165
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