Browsing by Author "Altural H."

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    IoT-Based Monitoring System for Detection of Epileptic Seizure by Heart Rate Variation
    (2021-01-01) Edris M.M.; Altural H.
    Heart rate variability (HRV) is highly identified in seizures, it reflects autonomous nervous system disturbance and it can provide useful clinical information that can be used for seizure detection. For decades, Electroencephalography (EEG) was the first device used to monitor brain signals and seizures. However, using EEG is not practical cause it requires to attach electrodes to the head scalp and it takes time to get results and it usually used during or after seizures occurred. To avoid EEG problems we need a detection system that can provide understandable data, easy to be used and capable of early intervention so the patient have the chance to prevent seizures and its related side effects. In this study, we plan to design epileptic seizure detection system by the heart rate monitoring with the internet of things (IoT) based. The sensor used is a pulse sensor, it is used as a heart rate detector processed by NodeMCU, the test results and measurements will be real-Time displayed on LCD and transmitted to ThingSpeak platform which it will be accessible to doctors, family members to follow the patient status.
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    Orthopedic Insole Design and Pressure Analyzes
    (2018-12-31) Ozkan S.; Altural H.; Kandemirli G.Ç.; Kandemirli F.
    In this study, it was aimed to produce a low cost customized orthopedic insole and perform its pressure analyzes. In this analysis, it was used thin film pressure sensor and Arduino programming platform equipped with ATmega328 microcontroller. For the sensor layout, 5 zones were determined in the sole and the proportional values with the pressure were recorded and these values were used for the insole design. For the pressure analysis, 17 volunteers aged 19 to 34 years, with flatfoot and normal foot participated for the experiments. A center line was determined to provide a balanced distribution of the pressure in the sole and a mathematical model was created for this distribution. Through this model, the data obtained from the experiments was normalized and the appropriate height values were calculated for the insole zones. In addition to this study, the reduction degree of pressure applied to the sole of a 9 mm high foam material placed on the heel of the foot was measured.