نتایج جستجو برای: spherical composite vessel

تعداد نتایج: 252614  

Journal: :Entropy 2010
Kian Eisazadeh-Far Ali Moghaddas Faranak Rahim Hameed Metghalchi

A thermodynamic model has been developed to calculate burning speed and entropy production of transient expending spherical laminar flame in an enclosed vessel. The model also predicts the particle trajectories of both unburned and burned gases in the vessel. The input to this model is the dynamic pressure rise due to combustion process. The unburned gases are divided into three regions: The co...

Journal: :Soft matter 2017
Francesco Mancarella John S Wettlaufer

The importance of surface tension effects is being recognized in the context of soft composite solids, where they are found to significantly affect the mechanical properties, such as the elastic response to an external stress. It has recently been discovered that Eshelby's inclusion theory breaks down when the inclusion size approaches the elastocapillary length L≡γ/E, where γ is the inclusion/...

2015
Marcin Kamiński

The main purpose of this work is the computational simulation of the sensitivity coefficients of the homogenized tensor for a polymer filled with rubber particles with respect to the material parameters of the constituents. The Representative Volume Element (RVE) of this composite contains a single spherical particle, and the composite components are treated as homogeneous isotropic media, resu...

2009
Yaling Liu Samar Shah Wenchuang Hu Jinming Gao

Adhesion of micro and nanoparticles onto cardiovascular walls is a critical process in applications such as targeted drug delivery, biomedical imaging, and cancer treatment. This paper intends to develop an understanding of the dynamic interaction between particle and vessel wall through computational modeling. The ligand-receptor binding dynamics is coupled with Immersed Finite Element Method ...

2003
M. Kikuchi

Long fibers of bone-like hydroxyapatite/collagen nanocomposites were fabricated via a self-organization under biomimetic conditions in order to obtain much more suitable biomechanical and biochemical properties for artificial bone and tissue engineering scaffolds. The fiber growth was controlled with ionic strength in the reaction vessel and was explained by a crystal growth model. The composit...

Journal: :journal of ultrafine grained and nanostructured materials 0
maryam azadeh school of metallurgy and materials engineering, college of engineering, university of tehran, p.o.box: 11155-4563, tehran, iran. cyrus zamani school of metallurgy and materials engineering, college of engineering, university of tehran, p.o.box: 11155-4563, tehran, iran. abolghasem ataie school of metallurgy and materials engineering, college of engineering, university of tehran, p.o.box: 11155-4563, tehran, iran.

silica exists in rice husk, an agriculture waste, as a naturally occurring phase. in first step, acidic pre-treatment and calcination of the rice husk were performed to obtain nano-silica, in which various sizes of the nano-silica, totally with sizes under 80 nm, were achieved. second, to reduce nano-silica to elemental si and subsequently formation of the composite, mg used as the reducing age...

Journal: :Journal of colloid and interface science 2001
S. A. Gómez-Lopera R. C. Plaza A. V. Delgado

A method for preparing colloidal particles formed by a magnetite nucleus and a biodegradable poly(DL-lactide) polymer coating is first described. The method is based on the so-called double-emulsion technique, employed to obtain polymeric spheres loaded with therapeutic drugs, to be used as drug delivery vectors. The aim of this work was to obtain, in a reproducible and rather simple way, collo...

Journal: :The New England journal of medicine 2015
Marco Valgimigli Enrico Frigoli Sergio Leonardi Martina Rothenbühler Andrea Gagnor Paolo Calabrò Stefano Garducci Paolo Rubartelli Carlo Briguori Giuseppe Andò Alessandra Repetto Ugo Limbruno Roberto Garbo Paolo Sganzerla Filippo Russo Alessandro Lupi Bernardo Cortese Arturo Ausiello Salvatore Ierna Giovanni Esposito Patrizia Presbitero Andrea Santarelli Gennaro Sardella Ferdinando Varbella Simone Tresoldi Nicoletta de Cesare Stefano Rigattieri Antonio Zingarelli Paolo Tosi Arnoud van 't Hof Giacomo Boccuzzi Elmir Omerovic Manel Sabaté Dik Heg Peter Jüni Pascal Vranckx

BACKGROUND Conflicting evidence exists on the efficacy and safety of bivalirudin administered as part of percutaneous coronary intervention (PCI) in patients with an acute coronary syndrome. METHODS We randomly assigned 7213 patients with an acute coronary syndrome for whom PCI was anticipated to receive either bivalirudin or unfractionated heparin. Patients in the bivalirudin group were subs...

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