Master Degree / Yüksek Lisans Tezleri

Permanent URI for this collectionhttps://hdl.handle.net/11147/3008

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  • Master Thesis
    Design of the Kiosk for More Effective Utilization in Hospital Queues
    (Izmir Institute of Technology, 2019) Bilen, Eren; Başoğlu, Ahmet Nuri
    Nowadays, various queuing systems are applied in many medical institutions. These systems aim to perform consumer operations in a specific order and to prevent long waiting times. This study focusses explicitly on the queuing system that is present in the Blood Collection Unit of İzmir Tepecik Training and Research Hospital. It was stated that the touch screen kiosk called Phlerobo used in this system could not be used effectively and therefore service failures occurred. It is aimed to examine and redesign the kiosk interface and body design in order to use this system more efficiently. This study started with literature studies that will direct the new model to comprehend the importance of the system. Then, experimental methods such as field observation and interview studies were carried out. As a result of the recommendations developed to solve the problems of the current system, design suggestions were made, and these designs were visualized. Then the designs were tested to determine the appropriate design. For this purpose, the designs were presented to the user via survey and a special web application. Interface and body design were developed by determining the appropriate design with the data obtained from the tests. Thus, the redesigned kiosk was predicted to be used more effectively. It was determined that the design of the data obtained will be used more efficiently than the previous one.
  • Master Thesis
    Design, Development and Control of a Twin Rotor Systems
    (Izmir Institute of Technology, 2014) Doğan, Fırat; Tatlicioğlu, Enver
    Twin rotor multi-input multi-output system (TRMS) is a laboratory setup resembling the dynamics of a helicopter. It is a complicated nonlinear system with high coupling effects between the propellers. In the literature, there is no commonly agreed dynamic model for these systems mainly due to the difficulties in modelling aerodynamic effects. As a result, numerical simulations of controllers performed on currently available dynamic models do not agree with experimental results obtained from a real system. The main motivations behind this thesis are to develop a TRMS in our laboratory and then apply different control algorithms on it. Firstly, the mechanical system is described briefly. The mechanical components are explained and the computer aided design model is given. The electronic system is then presented in detail. In the electronic system, hardware parts of the TRMS (mainboard, encoder reader circuits, and motor controller circuits) and the embedded algorithms are developed. The development of the user interface that is used both to observe the TRMS and to communicate with it, is then explained. Development of a mathematical model of the TRMS is described where its physical parameters are given. Finally, the performance of the TRMS is verified by conducting experiments for proportional, integral and derivative type controllers. The analysis of the experiments are discussed and compared in average maximum steady-state error, average root-mean-square error, error standard deviation, average root-mean-square control input and control input standard deviation.