Yazar "Das, Memik Taylan" seçeneğine göre listele

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    Öğe
    An overview of the evolution of additive manufacturing in sensor and biomaterial production
    (Gazi Univ, Fac Engineering Architecture, 2023) Kartal, Yunus; Das, Memik Taylan
    With the developing technology, additive manufacturing technique has become one of the manufacturing areas whose importance is increasing day by day in different fields. Additive manufacturing is a method based on the principle of producing/laying the object to be produced layer by layer. The additive manufacturing method is widely used in different industries such as aviation, automotive and biomedical due to its advantageous features such as easy production of complex shaped parts, cost and production speed. Due to these advantages, it has started to replace subtractive manufacturing methods in the near future. The production of wearable technology and biomaterials, which are among the additive manufacturing application areas, has been the focus of attention of researchers with an increasing momentum in recent years. This compilation study, which was carried out due to the successful applications of the additive manufacturing technique in these areas, is important in order to follow the current progress of the title and the course of future studies. For this purpose, it is aimed to convey the current developments in the field of wearable technology, especially on the production of sensors and biomaterials by additive manufacturing method.
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    Öğe
    Design of a robot-assisted exoskeleton for passive wrist and forearm rehabilitation
    (Copernicus Gesellschaft Mbh, 2019) Kutuk, Mehmet Erkan; Dulger, Lale Canan; Das, Memik Taylan
    This paper presents a new exoskeleton design for wrist and forearm rehabilitation. The contribution of this study is to offer a methodology which shows how to adapt a serial manipulator that reduces the number of actuators used on exoskeleton design for the rehabilitation. The system offered is a combination of end-effectorand exoskeleton-based devices. The passive exoskeleton is attached to the end effector of the manipulator, which provides motion for the purpose of rehabilitation process. The Denso VP 6-Axis Articulated Robot is used to control motion of the exoskeleton during the rehabilitation process. The exoskeleton is designed to be used for both wrist and forearm motions. The desired moving capabilities of the exoskeleton are flexion-extension (FE) and adduction-abduction (AA) motions for the wrist and pronation-supination (PS) motion for the forearm. The anatomical structure of a human limb is taken as a constraint during the design. The joints on the exoskeleton can be locked or unlocked manually in order to restrict or enable the movements. The parts of the exoskeleton include mechanical stoppers to prevent the excessive motion. One passive degree of freedom (DOF) is added in order to prevent misalignment problems between the axes of FE and AA motions. Kinematic feedback of the experiments is performed by using a wireless motion tracker assembled on the exoskeleton. The results proved that motion transmission from robot to exoskeleton is satisfactorily achieved. Instead of different exoskeletons in which each axis is driven and controlled separately, one serial robot with adaptable passive exoskeletons is adequate to facilitate rehabilitation exercises.