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NIST Authors in Bold

Displaying 27451 - 27475 of 73697

Conservative Confidence Ellipsoids for Linear Model Parameters

December 1, 2009
Author(s)
Andrew L. Rukhin
This paper studies properties of conservative confidence ellipsoids for parameters of a general linear model. These regions are obtained on the basis of a linear estimator when only a vague knowledge of (heterogeneous) error variances is available. The

Determination of Elements in SRM Soil 2709a by Neutron Activation Analysis

December 1, 2009
Author(s)
Rick L. Paul, Elizabeth A. Mackey, Rolf L. Zeisler, Rabia Oflaz, Bryan E. Tomlin
A combination of instrumental neutron activation analysis (INAA) and prompt gamma-ray activation analysis (PGAA) was used to value assign 35 elements in SRM soil 2709a (San Joaquin Soil). INAA with counting of short-lived radioisotopes was used for

Extension of the resonance line series of Mg III

December 1, 2009
Author(s)
C M. Brown, Alexander Kramida, Uri Feldman, Joseph Reader
Spectra of Mg emitted by a Penning discharge were recorded in the extreme ultraviolet (EUV) on a 10.7-m grazing-incidence spectrograph with phosphor image plates. The spectra provided nine new lines of Mg III between 156 and 166 Å and allowed us to improve

From Simulation to Real Robots with Predictable Results: Methods and Examples

December 1, 2009
Author(s)
Stephen B. Balakirsky, Stefano Carpin, George Dimitoglou, Benjamin Balaguer
From a theoretical perspective, one may easily argue (as we will in this chapter) that simulation accelerates the algorithm development cycle. However, in practice many in the robotics development community share the sentiment that "Simula-tion is doomed

From the Editor's Desk: Let's Have Some Fun

December 1, 2009
Author(s)
Catherine A. Remley
This is an Editorial for the December, 2009 issue of IEEE Microwave Magazine. Kate Remley, the Editor-in-Chief, writes about timely topics for the members of the Microwave Theory and Techniques Society (MTT-S).

Gradient Nanofiber Scaffold Libraries for Rapid Screening of Cell-Material Interactions

December 1, 2009
Author(s)
Carl G. Simon Jr., Murugan Ramalingam, Marian F. Young, Vinoy Thomas
Scaffolds play a key role in tissue engineering wherein they provide structural support for cells to adhere, grow and guide them to synthesize tissue. Scaffolds made of multiple biomaterials are typically required to mimic the three-dimensional (3D)

Hyperspectral Imager Characterization and Calibration

December 1, 2009
Author(s)
John T. Woodward IV, Steven W. Brown, Allan W. Smith, Keith R. Lykke
Current radiometric calibration standards, specifically blackbody and lamp-based optical radiation sources, produce spatially, spectrally, and temporally simple scenes. Hyperspectral imaging instruments, which in-practice view spatially, spectrally, and

Interoperable Methodologies and Techniques in CAD

December 1, 2009
Author(s)
Semiha Kiziltas, Fernanda Leite, Burcu Akinci, Robert R. Lipman
It is estimated that the cost of inadequate interoperability in the U.S. capital facilities industry is approximately $15.8 billion per year. Lack of or inadequate interoperability results in data and transfer problems and duplication of business

NIST Reference Material Scaffolds for Tissue Engineering

December 1, 2009
Author(s)
Carl G. Simon Jr.
The National Institute of Standards and Technology (NIST) has deployed Reference Material (RM) scaffolds for tissue engineering: a series of well-characterized 3D tissue scaffolds with differing porosities (RM 8395, RM 8396 and RM 8397) (Fig. 1). Customers

Quantitative Imaging to Assess Tumor Response to Therapy: Common Themes of Measurement, Truth Data & Error Sources

December 1, 2009
Author(s)
Charles D. Fenimore, Charles R. Meyer, Samuel G. Armato, Geoffrey McLennan, Luc Bidaut, Daniel P. Barboriak, Marios A. Gavrielides, Nicholas Petrick, Edward F. Jackson, Michael McNitt-Gray, Paul E. Kinahan, Binsheng Zhao
Rationale and Objectives Early detection of tumor response to therapy is a key goal. Finding measurement algorithms capable of early detection of tumor response could individualize therapy treatment as well as reduce the cost of bringing new drugs to

Sample Preparation Protocols for Realization of Reproducible Characterization of Single-walled Carbon Nanotubes

December 1, 2009
Author(s)
Angela R. Hight Walker, Jeffrey A. Fagan, Stephanie A. Hooker, Michael T. Postek, Stephen A. Wise, Andras Vladar, Rolf L. Zeisler
Harmonized sample pre-treatment is an integral first step in ensuring metrological quality of measurements as regards repeatability, inter-laboratory reproducibility and commutability. The development of standard preparation methods for SWCNT samples is

Sensing the Insulin Signaling Pathway with an Antibody Array

December 1, 2009
Author(s)
Hua-Jun He, Y Zong, Michel Bernier, Lili Wang
Defects within the insulin signaling pathways are a major locus for the development of insulin resistance and type 2 diabetes. The phorbol 12-myristate 13-acetate (PMA) is commonly described as a mediator of insulin resistance through the activation of the

STEPNC++ - An Effective Tool for Feature-based CAM/CNC

December 1, 2009
Author(s)
John L. Michaloski, Thomas R. Kramer, Frederick M. Proctor, Xun Xu, Sid Venkatesh, David Odendahl
This chapter discusses the realization of direct translation of feature-based CAM files into feature-based CNC part program files. The information infrastructure that allows this to happen is STEP-NC, as described by ISO 14649 Parts 10 and 11. Among the

Traceability for Ballistics Signature Measurements in Forensic Science

December 1, 2009
Author(s)
Jun-Feng Song, Theodore V. Vorburger, Susan M. Ballou, Li Ma, Thomas Brian Renegar, Xiaoyu Alan Zheng, Martin Ols
The National Institute of Standards and Technology (NIST) in collaboration with the Bureau of Alcohol, Tobacco, Firearms, and Explosives (ATF) has developed the Standard Reference Material (SRM) 2460 Bullets and 2461 Casings. NIST has also developed a 2D

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
Displaying 27451 - 27475 of 73697
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