Materials Literature
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We have developed a correlation microscopy technique to follow the dynamics of quantum dot labeled DNA within living cells. The temporal correlation functions of the labels reflect the fluctuations of the DNA nanoprobe as a result of its interactions with the cellular environment. They provide a sensitive measure for…
Size effects on the monotonic and creep compression behavior of closed-cell polyurethane foams is investigated experimentally. The aim is to determine a minimum representative volume of mechanical behavior for both mechanical tests. Cubic specimens of nonreinforced and glass fiber-reinforced foams are tested in compre…
The properties of a concrete mix should secure the self-elimination of needless air bubbles from its volume. What is interesting, these properties are not taken into consideration in commonly used self-compacting tests. On the basis of different tests concerning self-compacting concrete mixes, it has been discovered t…
In this research work, the effect of solvent on the size of paltinum nanoparticles synthesized by microemulsion method was investigated. Platinum nanoparticles have been prepared by the reduction of H 2 PtCl 6 with hydrazine in water-in-oil (w/o) microemulsions consisting of sodium bis(2-ethylhexyl) sulfo-succinate (A…
This chapter contains sections titled: Introduction Experiment Results and Discussion Conclusion Acknowledgements
This work involves a new optical application for transparent superhydrophobic materials, which enables low-energy optical contact between a liquid and solid surface. The new technique described here uses this surface property to control the reflectance of a surface using frustration of total internal reflection. Surfa…
This article studies the origin of broad band light emission in the ultraviolet to the red from silicon nanoparticles fabricated using a single low energy silver ion implantation.
The influence of interfacial structure on the resistance switching behavior of Ta/Pr0.7Ca0.3MnO3/Pt films was investigated by varying the reactive Ta electrode thickness. Structure and component analyses revealed that a TaOx layer formed at the interface and its thickness increased with the Ta thickness in the thin re…
The photo-response of a ZnO nanoparticle embedded in a nanopore made on a silicon nitride membrane is investigated. The ZnO nanoparticle is manipulated onto the nanopore and sandwiched between aluminum contact electrodes from both the top and bottom. The asymmetric device structure facilitates current-voltage rectific…
Bacterial adhesion to a biomaterial surface is thought to be the key step in the infection of indwelling medical devices and constitutes an object of study in the demand to reduce nosocomial infections. In this work, specific modifications on polycarbonate outer layer were utilized as model surfaces for the study of t…
A combination of gamma measurements and multivariate calibration was applied to estimate multiphase flow mixture density and to identify flow regime. The experiments were conducted using recombined hydrocarbon fluids sampled from an onshore receiving terminal including hydrate thermodynamic inhibitors (monoethylene gl…
A model for the bandgap energy of the N-rich GaNAs is developed. We find that the evolution of the conduction band minimum and the valence band maximum in the N-rich GaNAs is due to two factors. One is intraband coupling within the conduction band and separately within the valence band. The other one is the As level.…
The new hydrous layer silicate, RUB-55, was synthesized at 160 °C by hydrothermal synthesis from a reaction mixture of SiO 2 /tetramethylammonium hydroxide/H 2 O. The idealized chemical composition of as-made RUB-55 is [(CH 3 ) 4 N] 2 [Si 10 O 18 (OH) 6 ] · 16H 2 O. The XRD powder pattern was indexed in tetragonal sym…
15=111Shielded metal arc (SMAW) welded specimens using austenitic consumable materials with diff eerent amount of delta-ferrite are annealed in range 650-750 ºC through 2-10 hours.Factorial plan 3 3 with infl uenced factors regression analyse of measured delta-ferrite values is used.The transformation i.e. decompositi…
We examine the surface morphological stability of electrically and thermally conducting crystalline elastic solids in uniaxial tension under the simultaneous action of an electric field and a temperature gradient. We use linear stability analysis of a surface mass transport model that accounts for surface electromigra…
The electrostatic behavior of active site residues in enzyme catalysis is quite different from that of water molecules in solution. To highlight the electrostatic differences between both environments, we propose a QM/MM strategy to study the role of the environment in chemical reactions. The novelty of the present co…
BACKGROUND: Characterization at the atomic scale is becoming an achievable task for FM-AFM users equipped, for example, with a qPlus sensor. Nevertheless, calculations are necessary to fully interpret experimental images in some specific cases. In this context, we developed a numerical AFM (n-AFM) able to be used in d…
Well-aligned nitrogen-doped carbon nanotube (N-CNTs) film was fabricated on silicon substrate by thermal chemical vapor deposition process with varying the growth temperature. The effect of growth temperature on morphology, microstructure and crystallinity for the growth of N-CNTs was studied. At all growth temperatur…
Surveys for dictyostelid cellular slime moulds (dictyostelids) carried out in various areas of Mexico over the past half century have yielded considerable data on the distribution of these organisms in one region of the Neotropics. The species recovered in these surveys include several forms later described as new to…
The fluid transport characteristics and level fluctuations in the pool of twin roll strip casting were studied by physical simulation. The level profile depends on the transport characteristics of the flow in the pool. A 1∶1 water model of a twin roll strip caster was constructed based on the Froude number and Reynold…