Materials Literature
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Chalcogenide glasses are promising materials for optoelectronic device applications. Heat capacity of such materials is the essential physical parameter to estimate the energy/data storage capacity. In the present work, the effect of Tl incorporation on heat capacities ΔCpg, ΔCpc and ΔCpm of In10Se90-xTl x (7≤x≤15) an…
Aqueous phase synthesis of CdTe quantum dots (QDs) with surface functionalization for bioconjugation remains the best approach for biosensing and bioimaging applications. We present a facile aqueous phase method to prepare CdTe QDs by adjusting precursor and ligand concentrations. CdTe QDs had photoluminescence quantu…
A new theory is developed for the magnetoelectric (ME) coupling in a symmetric 2-2 ME laminate having a representative piezoelectric crystal (PMN-PT) particularly with anisotropic piezoelectric properties. Considering the average field method, the theoretical expressions for the transverse ME voltage coefficients at l…
In the present work at the first time the hydrogen interaction with Ce6Ni1.67Si3 at pressure up to 45 atm and temperature 51˚C has been investigated by means of the calorimetric method. The ΔHabs. – C dependence (ΔHabs. –the partial molar enthalpy of the reaction of the hydrogen interaction with IMC, C – hydrogen conc…
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Kondo effect originates from antiferromagnetic (AFM) s-d coupling between magnetic impurity and the conduction electron, while it will be totally quenched in ferromagnetic (FM) regime due to malfunction of spin-flip. We investigate the possibility of switching on/off Kondo effect by transition of AFM/FM s-d coupling u…
Abstract Crystals and polycrystalline powders of the title compound are prepared by solid state reaction of a stoichiometric mixture of (NH4)3AsO4, (NH4)2Mo4O13, AgNO3, and Na2CO3 (673 K for 24 h and 793 K for 7 d).
Trotz einer Vielzahl von Forschungsarbeiten auf dem Gebiet der Phthalocyanin-basierten organischen Verbindungen fehlt nach wie vor ein umfassendes Verstandnis des Zusammenspiels zwischen strukturellen und elektronischen Eigenschaften, die sich bei der Abscheidung dieser Stoffe auf anorganische kristallinen Substraten…
Les structures poreuses tridimensionnelles fonctionnelles possèdent un fort potentiel dans de nombreuses applications biomédicales. Nous avons ainsi orienté nos travaux vers l'élaboration de nouveaux matériaux capables de répondre à plusieurs critères pour l'ingénierie tissulaire osseuse. Du fait de leur biodisponibil…
With increasing temperature, some oxide compounds that are transparent in the near infrared range become progressively opaque when approaching the liquid phase. Such a behavior is unusual and deeply impacts their thermal radiative properties. To understand this phenomenon, infrared emittance spectra were acquired from…
Avec l augmentation de la température, certains composés oxydes, transparents dans le proche infrarouge, deviennent progressivement opaques à l approche de la fusion. Un tel comportement est inhabituel et impacte profondément leurs propriétés radiatives. Afin de comprendre ce phénomène, des mesures par spectroscopie d…
To take account of the development of corrosion products layers in residual lifetime calculations of reinforced concrete structures requires a good knowledge of the mechanical properties of these products. Our study aims to determine the mechanical properties of layers of corrosion products. The approach consists of a…
High-energy Coulomb correction to the screening angular parameter of the Moliere multiple scattering theory is found. Numerical calculations are presented in the range of nuclear charge from Z=4 to Z=82. The accuracy of the Moliere theory in determining the Coulomb correction to the screening angle is estimated.
We demonstrate that an {\it ac} Josephson current is pumped through the Single Molecular Magnets (SMM) by the spin nutation. The spin nutation is generated by applying a time dependent magnetic field to the SMM. We obtain the flowing charge current through the junction by working in the tunneling limit and employing G…
Unculturable microorganisms are a major challenge facing researchers in environmental microbiology, and Raman spectroscopy has emerged as a novel technique in this field as it is able to analyse single microbial cells without cultivation.It has been combined with stable isotope probing (SIP) to identify the ecological…
La synthese et l’etude de nouveaux oligoesters amphiphiles agro-sources et branches a base d’acide succinique bio-source, de glycerol, d’acides gras et d’autres synthons agro-sources ont ete envisagees pour des applications tensioactives dans des domaines varies en remplacement des tensioactifs petro-sources. La strat…
Cette thèse est une contribution à la modélisation imbriquée de systèmes complexes. Elle propose une méthodologie globale pour quantifier les incertitudes et leurs origines dans une chaîne de calcul formée par plusieurs modèles pouvant être reliés les uns aux autres de façon complexe. Ce travail est organisé selon tro…
A major challenge in single particle reconstruction from cryo-electron microscopy is to establish a reliable ab-initio three-dimensional model using two-dimensional projection images with unknown orientations. Common-lines based methods estimate the orientations without additional geometric information. However, such…
Extreme events such as the Mont Blanc Tunnel fire in 1999 (Bettelini et al. 2001) or the Windsor Tower fire in 2005 (Calavera et al. 2005) have shown how concrete failure at elevated temperatures can be hazardous to the safety of members of the public. Generally, there is an absence of understanding of the mechanical…
We perform Monte Carlo study of the 3d N=6 superconformal U(N)*U(N) Chern-Simons gauge theory (ABJM theory), which is conjectured to be dual to M-theory or type IIA superstring theory on certain AdS backgrounds. Our approach is based on a localization method, which reduces the problem to the simulation of a simple mat…