• Title/Summary/Keyword: Dong Jin Lee

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Anti-Sway Position Control of an Automated Transfer Crane Based on Neural Network Predictive PID Controller

  • Suh Jin-Ho;Lee Jin-Woo;Lee Young-Jin;Lee Kwon-Soon
    • Journal of Mechanical Science and Technology
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    • v.19 no.2
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    • pp.505-519
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    • 2005

  • In this paper, we develop an anti-sway control in proposed techniques for an ATC system. The developed algorithm is to build the optimal path of container motion and to calculate an anti-collision path for collision avoidance in its movement to the finial coordinate. Moreover, in order to show the effectiveness in this research, we compared NNP PID controller to be tuning parameters of controller using NN with 2 DOF PID controller. The simulation and experimental results show that the proposed control scheme guarantees performances, trolley position, sway angle and settling time in NNP PID controller than other controller. As the results in this paper, the application of NNP PID controller is analyzed to have robustness about disturbance which is wind of fixed pattern in the yard. Accordingly, the proposed algorithm in this study can be readily used for industrial applications.

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A Clinical Report of Patient with Mandibula Tremor Caused by Spiritual Trauma (심리적인 충격으로 인해 발병한 하악진전(下顎振顫) 환자 치험 1례)

  • Seo, Young-Min;Lee, Ji-Won;Cha, Hye-Jin;Seo, Deok-Won;Park, Se-Jin;Lee, Chang-Hee
    • Journal of Oriental Neuropsychiatry
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    • v.20 no.3
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    • pp.237-247
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    • 2009

  • Objectives : Tremor is increasing recently especially among senior citizens. In this case, the patient who had mandibular tremor caused by trauma, was not improved by western medicine. We tried to apply Oriental medical treatment. Methods : We treated the patient with acupuncture therapy and herbal medication and measured the frequency of the tremor, Jaw expression of Abnormal Involuntary Movement Scale(AIMS) and Visual analog scale. Results: After treatment symptom of mandibular tremor was decreased significantly and other symptoms such as insomnia disappeared. Conclusions : During the admission days symptoms are decreased in contentment. This result suggests that Oriental medical treatment has good effect on tremor.

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