Materials Literature
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Un modèle micromécanique est proposé pour une collection de zones cohésives insérées entre toutes les mailles d'une discrétisation de type éléments finis cohésifs-volumiques. Le principe de l'approche consiste à introduire un composite équivalent 'matrice-inclusions' comme une représentation de la discrétisation cohés…
Les études de structure et de spectroscopie réalisées sur les noyaux radioactifs durant les trois dernières décennies ont montré que la structure en couches des noyaux évolue vers la drip-line et que de nouveaux nombres magiques peuvent apparaître. Les noyaux doublement magiques sont très rares mais ils représentent d…
Keywords: supercooling, solidification, water, superhydrophobic surface, droplet Water is one of the most important element on earth. For scientists, it's a source of fascination for years because water has a lot of strange properties. For example, cold liquid water is less viscous but the density increases (maximum a…
O presente estudo avaliou a ação in vitro de diferentes nanopartículas de prata (nanoAg) sintetizadas pelo Instituto de Pesquisas Tecnológicas (IPT) e Universidade Federal de São Carlos (IFSC) e controles de sulfadiazina de prata, nitrato de prata e nanoAg comercial Sigma, frente a bactérias e leveduras. Os objetivos…
No presente trabalho foram realizadas a síntese e caracterizações estruturais, ópticas e espectroscópicas de materiais nanocompósitos na forma de guias de onda planares e pós de (100-x)SiO2-xNb2O5 dopados com íons lantanídeos pelo método sol-gel, para aplicação em Fotônica. Foi observada separação de fase controlada e…
Este trabalho apresenta um novo tomógrafo de espalhamento de fótons por efeito Compton para estudos de solos agrícolas em ambiente de campo. O seu desenvolvimento está fundamentado na física computacional, em uma instrumentação nuclear avançada e nas técnicas do espalhamento Compton. O posicionamento lado a lado da fo…
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The Thirteenth East Asia-Pacific Conference on Structural Engineering and Construction (EASEC-13), September 11-13, 2013, Sapporo, Japan.
A thermodynamically consistent mathematical model for hydrogen adsorption in\nmetal hydrides is proposed. Beside hydrogen diffusion, the model accounts for\nphase transformation accompanied by hysteresis, swelling, temperature and heat\ntransfer, strain, and stress. We prove existence of solutions of the ensuing\nsyst…
This book covers the theory of the strength of laminated and reinforced structures made of polymer materials with regard to the changeability of physico-chemical properties is examined. It presents an experimental-theoretical method on the definition of physico-mechanical properties of polymers composite materials and…
The cover depicts a Stone–Wales (SW) defective single-walled carbon nanotube (SWNT) surrounded with several 1,3- dipoles such as azomethine ylide and nitrone. Using a two-layered ONIOM method by Tao Yang, Xiang Zhao, and Shigeru Nagase on page 2223, 1,3–dipolar cycloadditions of several 1,3-dipoles upon SW defective a…
Keywords ................................................................................................ 51 References ............................................................................................... 51 4.1 THE CRYSTALLIZATION KINETICS OF NANOCOMPOSITES POLYPROPYLENE OR CARBON NANOTUBES 4.1.1 INTRODUCT…
We investigate the strength problem of a sufficiently long sandwich pipe with regard to physico-chemical properties of the layers, that arise when contacting with corrosive medium. Each layer is assumed to be piecewise homogeneous with mechanical properties ( )nn λ∑ , ( )n nν λ , ( )n nG λ and physico-chemical changes…
Chapter 13 describes several other techniques which may be combined with atomic-resolution imaging on a modern transmission electron microscope, including electron energy-loss spectroscopy, X-ray microanalysis, cathodoluminescence, microdiffraction, imaging of surfaces, holography, magnetic imaging, and environmental…
Problems ............................................................................... 9 1.1.2 Solution Methods of Differential Transfer Equations .........11 1.2 Experimental-Theoretical Method for Defining Physico-Mechanical Properties of Polymer Materials With Regard to Influence of Corrosive Liquid Medium.......…
Abstract Review: 43 refs.
Composites are excellent candidates for use as active, or smart, materials. Such materials can sense and respond to environmental and internal states and have the potential to extend the performance of engineering systems well beyond what is possible with passive materials. The possibility of activating multiple physi…
Abstract Review: synthesis, structure, properties and potential applications; 992 refs.
Switchgear is a term used to refer to combinations of switching devices and their interconnection with associated control, measurement and protection equipment. It allows the interconnection of various parts of the electrical network by means of transformers, overhead lines or cables to allow control of the flow of el…
Keywords ................................................................................................ 31 References ............................................................................................... 32 2.1 BIODEGRADABLE COMPOSITIONS OF STARCH 2.1.1 INTRODUCTION Because of constantly increasing product…