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    Optimization on Initial Position and Number of Informed Agents in a Flocking in Presence of Obstacles

    , M.Sc. Thesis Sharif University of Technology Paygani, Alireza (Author) ; Haeri, Mohammad (Supervisor)
    Abstract
    dFlocking in multi-agent systems as one of the most interested phenomena has gained scientists and researchers attention in recent years. In a multi-agent system, agents by using a consensus algorithm, which designed based on collective, collision avoidance, and velocity adaption rules, try to catch a common goal together. The aims which may define for flocking of a multi-agent system include the getting a certain point, chasing an alien agent, moving in a given route, and so on. Without considering flock’s purposes, all agents must be aware about the goal to catch it. But it is not possible always to inform all agents about the goal. Because sending the goal information to all agents due to... 

    Experimental Study on Behavior of Particle-Laden Density Current over Obstacles

    , M.Sc. Thesis Sharif University of Technology Yaghoubi, Sina (Author) ; Afshin, Hossein (Supervisor) ; Firoozabadi, Bahar (Co-Advisor)
    Abstract
    Density currents, caused by the intrusion of dense fluids under lighter ambient fluids, frequently occur in both natural and industrial situations. As a result of the density differences, the driving force can arise from soluble substances, temperature differences, etc. If the driving force comes from suspended particles including silt and mud, the currents are called turbidity currents. Due to the variation in concentration and the consequent driving force along the flow path, turbidity currents are significantly more complicated than saline currents. These currents play the most important role in sedimentation in lakes, seas and oceans. In addition, turbidity currents are the main factor... 

    Analysis of Dimensions, Objective and Implementation of Knowledge Management in Production Institutes

    , M.Sc. Thesis Sharif University of Technology Khosravi, Mojgan (Author) ; Mostafavi, Mostafa (Supervisor)
    Abstract
    The increasing significance and deployment of knowledge management(KM) is the main reason for selecting the topic of this research. This research tries to analyse the dimensions and KM implementation methods in press section of maintenance department in Saipa company. This study has a qualitative approach and the method is based on a case study. Data has been collected by questionnaires. Two questionnares have been provided in this research and distributed among different staff of press section in maintenance department. The concept of knowledge management maturity is applied and the goal of first questionnaire is based on this concept. The level of KM maturity is assessed via this...