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    Structure of DNA Confined in Nano-Environment

    , M.Sc. Thesis Sharif University of Technology Khatami, Maryam (Author) ; Ejtehadi, Mohammad Reza (Supervisor)
    Abstract
    Ejtehadi, M. R. (Mohammad Reza)All cells store their hereditary information in the same linear chemical code, DNA molecule. These information organize all activities of the cell. Therefore, studying various properties of DNA is a big step toward understanding life. Physicists are interested in elastic properties of DNA molecule. DNA is somehow a chain of successive atoms that have been arranged in a helical ladder shape. DNA is a stiff polymer so one has to use a large amount of energy to bend it. Interestingly, in most of the natural cases, DNA is highly packed into spaces that are much smaller that its total length. Cell’s nucleus and viral capsids are some examples. Virus maybe the... 

    Numerical Study of SARS-CoV-2 Virus Dispersion in Hospital Wards

    , M.Sc. Thesis Sharif University of Technology Ahmadian, Hossein (Author) ; Abdekhodaie, Mohammad Jafar (Supervisor)
    Abstract
    The ongoing Covid-19 pandemic has driven our attention to a simulation of virus dispersion to complete our understanding of airborne transmission. A myriad of studies have shown that respiratory diseases such as MERS, SARS, and COVID-19 can be transmitted by virus-laden droplets released during coughs, sneezing, and normal breathing. To mitigate and prevent the spread of such infectious diseases, investigation of the transmission routes is of great importance. This study has been fueled to harness the CFD tool to simulate the virus-laden droplets dispersion in hospitals inwards. Because of the limitations intertwined with experimental works such as the risk of infection of experimenters, and...