Materials Literature
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In this note we establish the existence of ground states for atoms within several restricted Hartree-Fock theories. It is shown, for example, that there exists a ground state for closed shell atoms with $N$ electrons and nuclear charge $Z \geq N-1$. This has to be compared with the general Hartree-Fock theory where th…
By 2-twist-spinning the knotted graph that represents the knotted handlebody $5_2$, we obtain a knotted foam in 4-dimensional space with a non-trivial quandle cocycle invariant.
Proton exchange membrane fuel cell (PEMFC) is a potential alternative energy conversion device for stationary and automotive applications. Wide commercialization of PEMFC depends on progress that can be achieved to enhance its reliability and durability along with cost reduction. It is desirable to operate the PEMFC a…
Récemment, les polymères obtenus à partir de ressources renouvelables ont connus un véritable engouement pour le remplacement de matériaux obtenus à partir de ressources pétrolières. L'objectif de notre étude a été de développer de nouveaux systèmes bio-sourcés réactifs, plus précisément des systèmes époxy, pour des a…
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By performing density functional calculations, we investigate the origin of the skyrmion state and ferroelectricity in Cu2OSeO3. We find that the Dzyaloshinskii-Moriya interactions between the two different kinds of Cu ions are extremely strong and induce the helical ground state and the skyrmion state in the absence…
ADVERTISEMENT RETURN TO ISSUEPREVViewpointNEXTNanoparticles in the Indian Environment: Known, Unknowns and AwarenessPrashant Kumar†‡*, Arun Kumar§, and Jamie R. Lead∥⊥View Author Information† Division of Civil, Chemical and Environmental Engineering, Faculty of Engineering and Physical Sciences (FEPS), University of S…
Wiley-VCH, Weinheim 2012. 342 S., geb., 139.00 €.—ISBN 978-3527329205
Investigation on size distribution of Diesel Particulate Matter (DPM) of DI diesel engine running on tire disposal fuel was observed. The experimental project is comparison of size distribution of DPM between using tire disposal fuel and base diesel fuel. The engine experiment was conducted with YANMAR TF120M single c…
In the past few years, extensive improvements have been accomplished in reinforcing the structures through using shape memory alloys (SMAs). These materials absorb or dissipate energy through establishing a reversible hysteresis loop during a cyclic mechanical loading. This unique characteristic of the SMAs has made t…
This volume is part of the sixth set of Handbook of Porphyrin Sceince. This 5-volume set provides a comprehensive review of the most up-to-date research on porphyrin, heme and chlorophyll biochemistry, as well as applications to biomedicine and bio-inspired energy. In-depth coverage of topics along with perspectives o…
The chemical synthesis of nanomaterials has been studied by few researchers, but innumerable improvements and better methods have been reported in the past few years. This new approach of preparing aluminum oxide (Al2O3) nanobricks is based on a soft reaction of aluminum powder and de-ionized (DI) water at 200oC witho…
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Iran is one of the largest pistachio producers and exporter in the world. In case of improper storage the pistachio quality will drop down for proliferation of fungus and absorption of moist which causes tissue destruction, undesirable flavour in the product.The aim of this study is examination of anti-fungal activity…
This volume is part of the sixth set of Handbook of Porphyrin Sceince. This 5-volume set provides a comprehensive review of the most up-to-date research on porphyrin, heme and chlorophyll biochemistry, as well as applications to biomedicine and bio-inspired energy. In-depth coverage of topics along with perspectives o…
Chloride induced corrosion, caused primarily by de-icing salts and/or salt spray from marine environments, is one of the most common deterioration processes in reinforced concrete. It often causes a lo-calized loss of section, known as pitting, which can lead to a significant reduction of the structure’s service life.…
This chapter presents a summary of the experimental results on large r s 2D electron and hole gases (2DEGs and 2DHGs) in clean semiconductor devices. In particular, it focuses on experiments on the following systems: silicon metal-oxide-semiconductor field-effect transistors (MOSFETs), p-GaAs heterojunctions and quant…
Chloride-induced corrosion of steel reinforcement in concrete may cause severe damage to RC structures. Longitudinal cracks may form during the corrosion rust expansion process. This paper examines the typical localized corrosion process by employing coupled micro- and macro-cell corrosion modeling tech-nique. The rei…