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    Generating a Database Through Parametric Bi-Ventricular Modeling and Finite Element Analysis of End-Diastolic Mechanical Behavior of Human Heart

    , M.Sc. Thesis Sharif University of Technology Aghigh, Sahand (Author) ; Asghari, Mohsen (Supervisor)
    Abstract
    Heart failure is one of the leading causes of death around the world and diastolic dysfunction is the main culprit behind about 30 percent of them. End-diastolic pressure-volume relationship is one of the most important indices of ventricles diastolic function, however invasive nature of assessment, has hindered its use in clinical applications. Despite the advances in computational modeling and bio-mechanical simulations, computational cost of these procedures often renders the computational methods unsuitable for clinical implications. Machine learning methods are usually the proper substitute in such cases. However, this method requires a large set of pre-calculated data for training,... 

    On the Formation of TiO2 Nanoparticles Via Submerged Arc Discharge Technique: Synthesis, Characterization and Photocatalytic Properties

    , Article Journal of Cluster Science ; Volume 21, Issue 4 , 2010 , Pages 753-766 ; 10407278 (ISSN) Ashkarran, A. A ; Kavianipour, M ; Aghigh, S. M ; Ahmadi Afshar, S. A ; Saviz, S ; Iraji Zad, A ; Sharif University of Technology
    2010
    Abstract
    We report a simple and inexpensive synthesis route of TiO2 nanoparticles using electrical arc discharge between titanium electrodes in oxygen bubbled deionized (DI) water followed by heat treatment. The resulting nanoparticles were characterized using X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), dynamic light scattering (DLS), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). XRD patterns demonstrate formation of TiO2 phase in oxygen bubbled water after heat treatment and dominance of rutile to anatase phase. The size and morphology of TiO2 nanoparticles were studied using different arc currents as a crucial parameter in properties of final...