Yavuz TÜRKAY - Academia.edu (original) (raw)
Papers by Yavuz TÜRKAY
Europan journal of science and technology, Apr 30, 2023
Politeknik dergisi, Mar 1, 2004
A simulation of the Domestic Hot Water (DHW) system, which will be installed in Sivas, is perform... more A simulation of the Domestic Hot Water (DHW) system, which will be installed in Sivas, is performed. A computer program written with the language of technical computing (MATLAB) is developed. First, the efficiency and the optimum design parameters of this system are computed. The results obtained are preserved in graphics and tables. An economical analysis of the system is also performed, and it is shown that the DHW system is necessary to reduce tomorrow's fuel bills.
European Journal of Therapeutics, 2018
Objective: Our aim was to compare the results of the most commonly used analgesic measurement tec... more Objective: Our aim was to compare the results of the most commonly used analgesic measurement techniques and to determine the time and intensity at which the analgesic effects of the magnetic field (MF) are most effective. Methods: This study compared the analgesic effect of MF strengths (1, 5, and 10 mT) in 30 adults, male Wistar albino rats weighing 200-250 g. The analgesic effects were measured using tail-flick (TF) and hot-plate (HP) tests. To determine the optimum MF strength, rats were assigned into four groups: sham group and exposed to 1, 5, and 10 mT MF groups. Rats were placed in a solenoid, and MF of 50 Hz for 165 min was administered daily for 15 days. All four groups were kept in the solenoid for 165 min/15 days and exposed to MF. However, the analgesic effect was measured only on day 0, 4, 7, 11, and 15 using TF and HP tests. The latencies of analgesia were converted to a percentage of maximal antinociceptive effects (% MPE). Results: When the maximum analgesic effect of the 5 mT MF was determined on the seventh day, the% MPEs were 5.37±0.51, 13.66±1.27, 25.89±3.00, and 25.37±2.41 in the sham, 1 mT, 5 mT, and 10 mT groups, respectively. The optimum effect was observed with 5 mT MF on the seventh day and with 90 min in the solenoid. Conclusion: We didn't find any differences between the analgesic responses to the TF and HP tests.
Politeknik Dergisi, 2004
A simulation of the Domestic Hot Water ( DHW ) system, which will be installed in Sivas, is per... more A simulation of the Domestic Hot Water ( DHW ) system, which will be installed in Sivas, is performed. A computer program written with the language of technical computing (MATLAB) is developed. First, the efficiency and the optimum design parameters of this system are computed. The results obtained are preserved in graphics and tables. An economical analysis of the system is also performed, and it is shown that the DHW system is necessary to reduce tomorrow’s fuel bills.
This paper presents the real-time household oven design application of the microcontroller-based ... more This paper presents the real-time household oven design application of the microcontroller-based fuzzy control system of temperature. Because of the complexity, nonlinearity, and dead time, temperature control of the oven is still delegated to many factors. In the computer-aided design process, the mathematical model of the system is derived with an open-loop response. The extracted model is used to obtain the conventional PI control parameters and adjust the PI type fuzzy rule base, which is mainly derived intuitively from the control engineering point of view. Using traditional PI parameters and Fuzzy logic PI rule base, real-time temperature control was realized with the PWM signal generated at the output of the PIC18F4520 microcontroller. The PWM signal produced at the output of the PIC18F4520 microcontroller is used to drive the power circuit designed using IGBT's. Oven responses are obtained for both Fuzzy and PI control systems, in which the developed PI fuzzy control has better performance with less overshoot, less rising and settling time, and smaller steady-state error. A detailed description of designed control systems and experimental works with performance are given.
Istanbul Aydin Universitesi Dergisi, 2016
In this study, an integrated exam system has been propesed for physical education exams by using ... more In this study, an integrated exam system has been propesed for physical education exams by using Information Technologies. The system consists of two parts: hardware and software. The hardware part of the system collects the performances of sportmen in test area by sensors and sends collected data to software system wirelessly. The processes of collecting and sending data are performed by electronic circuits with microcontroller. The software part of the system consists of two modules executed in desktop and Web platforms. The desktop module is in charge of evaluating data obtained from hardware and transfer them to database, Web module performs reporting processes including enrollment, computing exam marks and announce them online. Agile software development methodologies have been used in designing system and software development. Thus, it has been aimed to develop an IT project that have a higher performance, lower error and meets expectations of clients. The software development processes of the project has been examined.
A novel bit error rate (BER) expression for a coherent direct sequence-code division multiple acc... more A novel bit error rate (BER) expression for a coherent direct sequence-code division multiple access (DS-CDMA) receiver which employs exponential chip weighting waveforms withimperfect power control over a multipath Rayleigh fading channel is obtained. It is shown that the proposed expression has lower complexity than the known BER expression in theliterature
Europan journal of science and technology, Apr 30, 2023
Politeknik dergisi, Mar 1, 2004
A simulation of the Domestic Hot Water (DHW) system, which will be installed in Sivas, is perform... more A simulation of the Domestic Hot Water (DHW) system, which will be installed in Sivas, is performed. A computer program written with the language of technical computing (MATLAB) is developed. First, the efficiency and the optimum design parameters of this system are computed. The results obtained are preserved in graphics and tables. An economical analysis of the system is also performed, and it is shown that the DHW system is necessary to reduce tomorrow's fuel bills.
European Journal of Therapeutics, 2018
Objective: Our aim was to compare the results of the most commonly used analgesic measurement tec... more Objective: Our aim was to compare the results of the most commonly used analgesic measurement techniques and to determine the time and intensity at which the analgesic effects of the magnetic field (MF) are most effective. Methods: This study compared the analgesic effect of MF strengths (1, 5, and 10 mT) in 30 adults, male Wistar albino rats weighing 200-250 g. The analgesic effects were measured using tail-flick (TF) and hot-plate (HP) tests. To determine the optimum MF strength, rats were assigned into four groups: sham group and exposed to 1, 5, and 10 mT MF groups. Rats were placed in a solenoid, and MF of 50 Hz for 165 min was administered daily for 15 days. All four groups were kept in the solenoid for 165 min/15 days and exposed to MF. However, the analgesic effect was measured only on day 0, 4, 7, 11, and 15 using TF and HP tests. The latencies of analgesia were converted to a percentage of maximal antinociceptive effects (% MPE). Results: When the maximum analgesic effect of the 5 mT MF was determined on the seventh day, the% MPEs were 5.37±0.51, 13.66±1.27, 25.89±3.00, and 25.37±2.41 in the sham, 1 mT, 5 mT, and 10 mT groups, respectively. The optimum effect was observed with 5 mT MF on the seventh day and with 90 min in the solenoid. Conclusion: We didn't find any differences between the analgesic responses to the TF and HP tests.
Politeknik Dergisi, 2004
A simulation of the Domestic Hot Water ( DHW ) system, which will be installed in Sivas, is per... more A simulation of the Domestic Hot Water ( DHW ) system, which will be installed in Sivas, is performed. A computer program written with the language of technical computing (MATLAB) is developed. First, the efficiency and the optimum design parameters of this system are computed. The results obtained are preserved in graphics and tables. An economical analysis of the system is also performed, and it is shown that the DHW system is necessary to reduce tomorrow’s fuel bills.
This paper presents the real-time household oven design application of the microcontroller-based ... more This paper presents the real-time household oven design application of the microcontroller-based fuzzy control system of temperature. Because of the complexity, nonlinearity, and dead time, temperature control of the oven is still delegated to many factors. In the computer-aided design process, the mathematical model of the system is derived with an open-loop response. The extracted model is used to obtain the conventional PI control parameters and adjust the PI type fuzzy rule base, which is mainly derived intuitively from the control engineering point of view. Using traditional PI parameters and Fuzzy logic PI rule base, real-time temperature control was realized with the PWM signal generated at the output of the PIC18F4520 microcontroller. The PWM signal produced at the output of the PIC18F4520 microcontroller is used to drive the power circuit designed using IGBT's. Oven responses are obtained for both Fuzzy and PI control systems, in which the developed PI fuzzy control has better performance with less overshoot, less rising and settling time, and smaller steady-state error. A detailed description of designed control systems and experimental works with performance are given.
Istanbul Aydin Universitesi Dergisi, 2016
In this study, an integrated exam system has been propesed for physical education exams by using ... more In this study, an integrated exam system has been propesed for physical education exams by using Information Technologies. The system consists of two parts: hardware and software. The hardware part of the system collects the performances of sportmen in test area by sensors and sends collected data to software system wirelessly. The processes of collecting and sending data are performed by electronic circuits with microcontroller. The software part of the system consists of two modules executed in desktop and Web platforms. The desktop module is in charge of evaluating data obtained from hardware and transfer them to database, Web module performs reporting processes including enrollment, computing exam marks and announce them online. Agile software development methodologies have been used in designing system and software development. Thus, it has been aimed to develop an IT project that have a higher performance, lower error and meets expectations of clients. The software development processes of the project has been examined.
A novel bit error rate (BER) expression for a coherent direct sequence-code division multiple acc... more A novel bit error rate (BER) expression for a coherent direct sequence-code division multiple access (DS-CDMA) receiver which employs exponential chip weighting waveforms withimperfect power control over a multipath Rayleigh fading channel is obtained. It is shown that the proposed expression has lower complexity than the known BER expression in theliterature