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Search Publications

NIST Authors in Bold

Displaying 18076 - 18100 of 53281

Thin film morphology of organic electronic materials

March 1, 2010
Author(s)
Xinran Zhang, Steven D. Hudson, Dean M. DeLongchamp, David J. Gundlach
Organic electronic materials are desired for low-cost printed circuits. As expected, the microstructure of these materials is crucial for their performance, such as charge-carrier mobility. These materials typically comprise anisotropic molecules, and the

Weight Functions for Biases in Atomic Frequency Standards

March 1, 2010
Author(s)
Jon H. Shirley
Many perturbations that affect atomic frequency standards vary during the period of measurement. To include this time variation, we introduce three time-dependent weight functions built from the solution of the unperturbed equations of motion of a two

A Collection of 2D Elliptic Problems for Testing Adaptive Algorithms

February 26, 2010
Author(s)
William F. Mitchell
Adaptive grid refinement is a critical component of the improvements that have recently been made in algorithms for the numerical solution of partial differential equations (PDEs). The development of new algorithms and computer codes for the solution of

AN AUTOMATIC OVERLAP-BASED CELL TRACKING SYSTEM

February 26, 2010
Author(s)
Joe Chalfoun, Antonio Cardone, Alden A. Dima, Michael W. Halter, Daniel P. Allen
In order to facilitate the extraction of quantitative data from live cell image sets, automated image analysis methods are needed. This paper presents an overlap-based cell tracking algorithm that has the ability to track cells across a set of time-lapse

The DEMO Quasisymmetric Stellarator

February 26, 2010
Author(s)
Paul R. Garabedian, Geoffrey B. McFadden
The NSTAB code solves differential equations in conservation form, and the TRAN test particle code tracks guiding center orbits in a fixed background, to provide simulations of equilibrium, stability, and transport in tokamaks and stellarators. These codes

An Interoperability Test System for IEEE 1451.5-802.11 Standard

February 25, 2010
Author(s)
Yuyin Song, Kang B. Lee
Interoperability is the ability of systems or software applications to communicate with each other. Interoperability testing verifies that systems can work together based on a standard protocol in an operational environment. This paper introduces an

Connecting Buildings to Public Safety Networks

February 25, 2010
Author(s)
Alan B. Vinh, David G. Holmberg
The operation of modern commercial buildings uses digital control systems which monitor a vast amount of sensors. These sensors in turn produce data that is available for building control but also can be mission-critical for effective emergency response

Detection of Voigt Spectral Line Profiles of Hydrogen Radio Recombination Lines toward Sagittarius B2(N)

February 24, 2010
Author(s)
Francis J. Lovas, Azrael A. von Prochazka, Anthony J. Remijan, Dana S. Balser, Robert S. Ryans, Adele H. Marshall, Frederic R. Schwab, Jan M. Hollis, Phil R. Jewell
We report the detection of Voigt spectral line profiles of radio recombination lines (RRLs) toward Sagittarius B2(N) with the 100-m Green Bank Telescope (GBT). These results constitute the first known, unambiguous detection of the Voigt spectral line shape

Guide to SIMfill Use and Development

February 24, 2010
Author(s)
Wayne Jansen, Aurelien M. Delaitre
SIMfill is a proof-of-concept, open source, application developed by NIST to populate identity modules with test data, as a way to assess the recovery capability of mobile forensic tools. An initial set of test data is also provided with SIMfill as a

Interoperability for Simulation of Sustainable Manufacturing

February 24, 2010
Author(s)
Guodong Shao, Nils E. Bengtsson, Bjoern J. Johansson
Sustainability has become a very significant research topic, it impacts many different manufacturing industries. To achieve sustainable manufacturing, designing manufacturing systems that have less negative impact on the environment is critical. Modeling

March 2010 SRM Spotlight

February 24, 2010
Author(s)
Regina R. Montgomery
The SRM Spotlight is a newsletter published by the Measurement Services Division for users of NIST standard reference materials. The Spotlight announces new reference materials and provides information about their use. In addition, this newsletter contains

No Calcium Fluoride Found in Plaque Following a NaF Rinse

February 24, 2010
Author(s)
Gerald L. Vogel, Livia M. Tenuta, Gary E. Schumacher, Laurence C. Chow
Background: Plaque calcium fluoride or biological/bacterial calcium-fluoride deposits appear to be the source of cariostatic concentrations of fluoride in plaque fluid. Aims: (1) To quantify the amount of plaque calcium fluoride after a NaF rinse. (2) To

Material properties and fractography of an Indirect Dental Resin Composite.

February 23, 2010
Author(s)
Janet B. Quinn, George D. Quinn
Objectives: Determination of material and fractographic properties of a dental indirect resin composite material. Methods: A resin composite (Paradigm, 3M-ESPE, MN) was characterized by strength, static elastic modulus, Knoop hardness, fracture toughness

Nanomechanical Measurements and Tools

February 23, 2010
Author(s)
Robert F. Cook
Nanotechnology provides great opportunities for the development of advanced devices with enormous quality-of-life and economic benefits, with applications ranging from biomedical implantable actuators to environmental toxin detectors to infrastructural

REACh

February 23, 2010
Author(s)
John V. Messina, Kevin G. Brady
Displaying 18076 - 18100 of 53281