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NIST Authors in Bold

Displaying 33851 - 33875 of 73697

Anti-Biofouling Properties of Comb-Like Block Copolymer With Amphiphilic Side-Chains

August 11, 2006
Author(s)
Sitaraman Krishnan, R Ayothi, A Hexemer, J Finlay, K E. Sohn, R Perry, Christopher K. Ober, E J. Kramer, M E. Callow, J A. Callow, Daniel A. Fischer
Surfaces of novel block copolymers with amphiphilic side chains were studied for adhesion of marine organisms. the surface-active polymer, obtained by grafting fluorinated molecules with hydrophobic and hydrophilic blocks to a block copolymer precursor

Retrieval and Clustering from a 3D Human Database based on Body and Head Shape

August 11, 2006
Author(s)
Afzal A. Godil, Sanford P. Ressler
In this paper, we describe a framework for similarity based retrieval and Clustering from a 3D human database. Our technique is based on both body and head shape representation and retrieval based on similarity of both of them. The 3D human database used

Electrostatically gated Si devices: Coulomb blockade and barrier capacitance

August 10, 2006
Author(s)
Neil M. Zimmerman, Akira Fujiwara, Hiroshi Inokawa, Yasuo Takahashi
Using a new device resembling a nano-CCD, and measuring the Coulomb blockade, we identify a new parameter, the "barrier capacitance". We then show how this parameter can be used to learn about the underlying shape of the energy barrier under a gate with a

Analysis of Sensitivity of VCCTL Measurements to Various Input Quantities

August 9, 2006
Author(s)
Adriana Hornikova, Blaza Toman, Nien F. Zhang, Hung-Kung Liu, Robert C. Hagwood, Edward J. Garboczi, Jeffrey W. Bullard
Virtual measurements are the outputs of well-defined mathematical models based on theoretical principles and simulation algorithms. The VCCTL (Virtual Cement and Concrete Testing Laboratory) is a software system built by the Material and Construction

Single-Molecule Charge Transport Measurements Reveal Technique-Dependant Perturbations

August 8, 2006
Author(s)
Dwight S. Seferos, A S. Blum, James G. Kushmerick, Guillermo Bazan
We compare scanning tunneling microscopy (STM) imaging with single molecule conductive atomic force microscopy (C-AFM) measurements by probing a series of structurally-related thiol-terminated oligo(phenylenevinylene)s (OPVs) designed to have unique charge

Stationary Phase Approximation for the Strength of Optical Feshbach Resonances

August 7, 2006
Author(s)
R Ciurylo, Eite Tiesinga, Paul S. Julienne
Analytic expressions for the width and shift of a photoassociative resonance or an optically induced Feshbach resonance in ultra-cold collisions are derived using the quasi-classical stationary phase approximation. This approach is applicable over a wider

The NIST Time Measurement and Analysis Service

August 7, 2006
Author(s)
Michael A. Lombardi, Andrew N. Novick
NIST now offers a new remote calibration service designed to assist laboratories who maintain a accurate local time standard. The service monitors the local time standard by continuously comparing it to the national time standard, and reports the

Calculation of the uncertainty of the mean of autocorrelated measurements

August 4, 2006
Author(s)
Nien-Fan Zhang
When repeated measurements are autocorrelated, it is not appropriate to use the traditional approach to calculate the uncertainty of the average of the measurements, which assumes that the measurements are statistically independent. In this paper, we

Proposed Development of a National Standard for Microwave Brightness Temperature

August 4, 2006
Author(s)
James P. Randa, Amanda Cox, Dave K. Walker
We review the advantages of a national standard for microwave brightness temperature and outline our proposed approach toward developing such a standard. The proposal is a combined standard that would comprise both a standard radiometer, traceable to

The Glass Transition of Miscible Binary Polymer-Polymer Thin Films

August 4, 2006
Author(s)
Brian M. Bescancon, Christopher Soles, P A. Green
The average glass transition temperatures, Tg, of thin homopolymer films exhibit a thickness dependence, Tg(h), determined by a confinement effect and by the polymer segment/interface interactions. The Tgs of completely miscible thin film blends of

Transport dynamics of single ions in segmented microstructured Paul trap arrays

August 4, 2006
Author(s)
Rainer Reichle, Dietrich G. Leibfried, Brad R. Blakestad, Joseph W. Britton, John D. Jost, Emanuel H. Knill, C. Langer, R Ozeri, Signe Seidelin, David J. Wineland
It was recently proposed to use small groups of trapped ions as qubit carriers in miniaturized electrode arrays that comprise a large number of individual trapping zones, between which ions could be moved. This approach might be scalable for quantum

Load-Displacement Relations for Nanoindentation of Viscoelastic Materials

August 2, 2006
Author(s)
Chien-Kuo Liu, S H. Lee, Li Piin Sung, Tinh Nguyen
A model based on the Burgers viscoelastic concept has been developed to describe the nanoindentation behaviors of polymeric materials. An analytical solution of displacement at the indenter tip has been derived based on the analog of the governing equation

Scanning Temperature Gradient Focusing

August 2, 2006
Author(s)
S J. Hoebel, K M. Balss, Barbara J. Jones, C Malliaris, Matt S. Munson, Wyatt N. Vreeland, David J. Ross
Temperature gradient focusing (TGF) is a recently developed technique for the simultaneous concentration and electrophoretic separation of ionic analytes in microfluidic channels. One drawback to TGF as it has previously been described is the limited peak
Displaying 33851 - 33875 of 73697
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