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    Robotic Modeling of Paraplegic Locomotion to Improve the Gait Efficiency Using Modified Motion Pattern and Orthotics Design

    , M.Sc. Thesis Sharif University of Technology Abdolshah, Saeed (Author) ; Farahmand, Farzam (Supervisor)
    Abstract
    Walking on legs using orthosis for spinal cord injury patients has many advantages and decreases the physiological and psychological problems comparing with wheelchair application, however high energy consumption and early exhaustion of patients are disadvantages of orthosis usage. The most important group of orthosis for spinal cord injury patients is RGO (Reciprocating Gait Orhtosis) which a reciprocating cable mechanism links two hip joints motion. So swinging of mobile leg gets easier and stability of patient in standing and walking step increases. Regarding to existent reports about high energy consumption in walking by orthosis, this project has been fulfilled to design an improved... 

    Simulation of Vertical Axis Tidal Turbine and Surrey of the Factors Affecting its Efficiency Applying CFD

    , M.Sc. Thesis Sharif University of Technology Zameni Ghalati, Saeideh (Author) ; Saeedi, Mohammad Hassan (Supervisor) ; Abbaspour, Majid (Supervisor)
    Abstract
    Increasingenergy requirements, limitedfossil resources, environmental pollutioncaused byfossilfuels, global warmingand other factorshaveled tothe approach ofscience and technologyfor renewable energies. One of the renewable energies is the energy relevant to ocean currents that is mainlydue to theinteractionbetween thetidalattraction ofthe moon,sun andearth. In our country,due tothehigh tideon the southern coast, there isgood potentialto use thistype of energy. One of themost favorableareasformarinecurrentpower plantslocated inthe northern part ofthe islandof Qeshmchannel.In this thesis,to exploitthis potential, the newidea ofHunter tidalturbine was investigated,because...