Materials Literature
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Motivated by the recent emergence of a new class of anisotropic 2D materials, we examine their electromagnetic modes and demonstrate that a broad class of the materials can host highly directional hyperbolic plasmons. Their propagation direction can be manipulated on the spot by gate doping, enabling hyperbolic beam r…
Digital phase shifters have been applied in traditional phased array antennas to realize beam steering. However, the phase shifter deals with the phase of the induced current; hence, it has to be in the path of each element of the antenna array, making the phased array antennas very expensive. Metamaterials and/or met…
Lanthanide complexes are of increasing importance in cancer diagnosis and therapy, owing to the versatile chemical and magnetic properties of the lanthanide-ion 4f electronic configuration. Following the first implementation of gadolinium(III)-based contrast agents in magnetic resonance imaging in the 1980s, lanthanid…
3D printing of a graphene aerogel with true 3D overhang structures is highlighted. The aerogel is fabricated by combining drop-on-demand 3D printing and freeze casting. The water-based GO ink is ejected and freeze-cast into designed 3D structures. The lightweight (<10 mg cm(-3) ) 3D printed graphene aerogel presents s…
Metallic-phase MoS2 (M-MoS2) is metastable and does not exist in nature. Pure and stable M-MoS2 has not been previously prepared by chemical synthesis, to the best of our knowledge. Here we report a hydrothermal process for synthesizing stable two-dimensional M-MoS2 nanosheets in water. The metal-metal Raman stretchin…
Principles of Composite Material Mechanics covers a unique blend of classical and contemporary mechanics of composites technologies. It presents analytical approaches ranging from the elementary mechanics of materials to more advanced elasticity and finite element numerical methods, discusses novel materials such as n…
Des nouveaux catalyseurs bimétalliques à base de palladium et de cuivre ont été développés. Deux voies de préparation ont été testées : l'imprégnation successive (TSI) et la co-imprégnation (CI) en utilisant la zéolithe 4Å (4A) et l'oxyde mixte MgAlxOy comme support. Les catalyseurs ont été caractérisés à l'état frais…
Modélisation par level set des macroségrégations induites par le retrait à la solidification La macroségrégation est un défaut connu dans les procédés de coulées industrielles. La genèse de ce défaut est la conséquence de l'interaction complexe entre la microségrégation ou la distribution des espèces chimiques à l'éch…
L’objectif de ce travail a été d’étudier des matériaux semiconducteurs de type p comme photocathode pour la réduction de protons dans le cadre de la photoélectrolyse de l’eau. Ainsi, deux types de matériaux ont été étudiés, des oxydes de cuivre, Cu2O et CuO, et des matériaux à structure pérovskite (ATiO3, A=Ca, Ba, Sr…
The phenomenon of bond stretch isomerism, two isomers of a compound differing predominantly in just one bond length, is one of those chemical concepts that wax and occasionally wane. Here I explore such isomerism for the elements Ge, Sn and Pb.
La synthèse de haut niveau (High Level Synthesis (HLS)) est un domaine de recherche qui vise à automatiser le passage de la description d’un algorithme à une représentation au niveau registre de celui-ci en vue de son implantation sur un circuit numérique. Si le problème reste à ce jour largement ouvert pour des algor…
Nanoparticles NP S of cadmium oxide CdO were generated by laser ablation of a solid target (cadmium) in polyvinylpyrrolidone (PVP) solution. CdO colloidal nanoparticles have been synthesized by laser ablation Nd:YAG (1064 nm, 100 pulses, pulse energy= 400 mJ) when the solid target CdO was immersed in PVP. Structure, t…
In this research work a small thermal engine was utilized for generation of electrical energy and its operation was analyzed in terms of the output performance with various external load resistances and different flywheel rotations. It was seen from the results that with increase of the external load there is a less c…
All papers published in this volume of Journal of Physics: Conference Series have been peer reviewed through processes administered by the proceedings Editors. Reviews were conducted by expert referees to the professional and scientific standards expected of a proceedings journal published by IOP Publishing.
All papers published in this volume of IOP Conference Series: Materials Science and Engineering have been peer reviewed through processes administered by the proceedings Editors. Reviews were conducted by expert referees to the professional and scientific standards expected of a proceedings journal published by IOP Pu…
Established in 1964, the IUCN Red List of Threatened Species has evolved to become the world’s most comprehensive information source on the global conservation status of animal, fungi and plant species.
ADVERTISEMENT RETURN TO ISSUEPREVArticleIssue Publication InformationCite this: Macromolecules 2016, 49, 3, XXX-XXXPublication Date (Web):February 9, 2016Publication History Published online9 February 2016Published inissue 9 February 2016https://doi.org/10.1021/mav049i003_799139Copyright © 2016 American Chemical Socie…
Here we question the generality of the conventional definition of a native conformation –as the 3-dimensional conformation of an entire globular polypeptide molecule. Although considered common knowledge, and thus not explicitly stated in modern writings, this definition of native conformations has a history as old as…
In this paper using FDTD-method, we conduct a comparative modeling of a sharp focus of the laser light by using binary-phase and binary-amplitude Fresnel zone plates, with the latter being fabricated as thin metal films of 20-30-nm thickness. Subwavelength local maximums are found near the rings of the silver zone pla…
The purpose of this paper is to study effect of laser CO2 on the structural properties of Cadmium Oxide (CdO) films prepared by Chemical Spray Pyrolysis (CPS) technique. The films are deposited on glass substrate using Cd(NO3)2.4H2O concentration (0.1) M at temperature (350°C), using 6 spray rate during (10) second cr…