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Displaying 24676 - 24700 of 73969

A Simple Series Resistance Extraction Methodology for Advanced CMOS Devices

August 1, 2011
Author(s)
Jason P. Campbell, Kin P. Cheung, John S. Suehle, A Oates
Series resistance has become a serious obstacle inhibiting the performance of advanced CMOS devices. However, series resistance quantification in these same advanced CMOS devices is becoming exceedingly difficult. In this study, we demonstrate a very

A Special Functions Handbook for the Digital Age

August 1, 2011
Author(s)
Ronald F. Boisvert, Charles W. Clark, Daniel W. Lozier, Frank W. Olver
The NIST Digital Library of Mathematical Functions (DLMF) is a reference work providing information on the properties of the special functions of applied mathematics. It is a successor to the highly successful NBS Handbook of Mathematical Functions

Cell Adhesion to Borate Glasses by Colloidal Probe Microscopy

August 1, 2011
Author(s)
Sheldon M. Wiederhorn, Carl G. Simon Jr., Young-Hun Chae
The adhesion of Osteoblast-like cells to silicate and borate glasses was measured using colloidal probe microscopy in a cell growth medium. The probe consisted of silicate and borate glass spheres, 25 µm to 50 µm in diameter, attached to the tip of an

Development of a Seebeck Coefficient Standard Reference Material (SRM)

August 1, 2011
Author(s)
Nathan Lowhorn, Winnie Wong-Ng, John Lu, Joshua B. Martin, Martin L. Green, John E. Bonevich, Evan L. Thomas, Neil Dilley, Jeff Sharp
We have successfully developed a Seebeck coefficient Standard Reference Material (SRM™), Bi2Te3, that is essential for interlaboratory data comparison and for instrument calibration. Certification measurements were performed using a differential steady

Effect of Alternating Ar and SF6/C4F8 Gas Flow in Si Nano-Structure Plasma Etching

August 1, 2011
Author(s)
Lei Chen, Vincent K. Luciani, Houxun H. Miao
Si is very reactive to normal plasma etchants such as fluorine based chemicals and the reactions are inherently isotropic. To fabricate small and/or high aspect ratio nanoscale structures in Si, anisotropic profile is necessary. SF6 combined with C4F8 has

Effect of sample conditioning on the water absorption of concrete

August 1, 2011
Author(s)
Javier Castro, Dale P. Bentz, Jason Weiss
ASTM C1585 is commonly used to determine the absorption and rate of absorption of water in unsaturated hydraulic cement concretes. ASTM C1585 preconditions the samples for a total of 18 days. Unfortunately however, the range of relative humidities that can

GaN Nanowires Grown by Molecular Beam Epitaxy

August 1, 2011
Author(s)
Kristine A. Bertness, Norman A. Sanford, Albert Davydov
The unique properties of GaN nanowires grown by molecular beam epitaxy are reviewed. These properties include the absence of residual strain, exclusion of most extended defects, long photoluminescence lifetime, low surface recombination velocity,and high

Optimization of Cement and Fly Ash Particles to Produce Sustainable Concretes

August 1, 2011
Author(s)
Dale P. Bentz, Andrew Hansen, John Guynn
In the drive to produce more sustainable concretes, considerable emphasis has been placed on replacing cement in concrete mixtures with more sustainable materials, both from a raw materials cost and a CO2 footprint perspective. High volume fly ash

Springer Handbook of Metrology and Testing, Electrical Properties

August 1, 2011
Author(s)
Jan Obrzut, Bernd Schumacher, Heinz-Gunter Bach, Petra Spitzer
The dielectric properties of materials are used to describe electrical energy storage, dissipation and energy transfer. The most relevant physical processes in dielectric materials from the practical view point are those which result in power loss

SRM 1450d, Fibrous-Glass Board, for Thermal Conductivity from 280 K to 340 K

August 1, 2011
Author(s)
Robert R. Zarr, Amanda C. Harris, John F. Roller, Stefan D. Leigh
Thermal conductivity measurements at and near room temperature are presented as the basis for certified values of thermal conductivity for SRM 1450d, Fibrous Glass Board. The measurements have been conducted in accordance with a randomized full factorial

STR Sequence Analysis for Characterizing Normal, Variant, and Null Alleles

August 1, 2011
Author(s)
Margaret C. Kline, Carolyn R. Steffen, John M. Butler, Amy Decker
DNA sequence variation is known to exist in and around the repeat region of short tandem repeat (STR) loci used in human identity testing. While the vast majority of STR alleles measured in forensic DNA laboratories worldwide type as "normal" alleles
Displaying 24676 - 24700 of 73969
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