Yazar "Terzioglu, Hakan" seçeneğine göre listele

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    The Design of Training Elevators for Effective Learning
    (IEEE, 2015) Selek, Murat; Terzioglu, Hakan; Kazan, Fatih Alpaslan
    The desire to use the settlement areas productively along with the gradually increasing population leads the increase in the number of multi-storey buildings. With the increase of multistory buildings, the need for Elevators evenly increases. In this study, a multi-purpose training elevator was designed in order to contribute the need of training personnel required for the increasing need for elevators. This elevator is an education set designed to be used in the training of students in the department of mechatronics, electric and electronics at vocational-technical education institutes. Through this elevator training set, the education of students became more qualitative, more permanent and more effective. In the designed training set, moreover, the designing of elevator was executed in order to control it through PLC, SCADA or microcontroller. Thus, the students are informed through the training set and the software was introduced in the courses of PLC, SCADA and microcontroller.
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    The Designing of an Educational Solar Panel That Can Be Controlled in Different Ways
    (IEEE, 2015) Terzioglu, Hakan; Kazan, Fatih Alpaslan; Selek, Murat
    Nowadays, reasons such as the gradual decrease of natural gas, coal, oil and oil derivatives, fluctuations in water levels in dams, and doubts surrounding the reliability of nuclear power plants and waste problems connected with them have caused people to search for renewable energy resources that have lower costs per unit, and do less damage to nature. To this end, intensive efforts have been made in the past decade to make use of solar energy for the purpose of producing electricity. As a result of these efforts, the use of solar panels is increasing rapidly. In parallel to this, the need for staff members who have knowledge and skills about these systems and are well-qualified is also increasing. In this study, a multi-purpose and educational solar energy set was designed in order to meet the need for well-qualified personnel in the field of solar energy education. This set was designed to be used in the education of students attending mechatronics, control automation, electric and electronic departments in institutions of vocational and technical education. This set enabled students to see the equipment used in the solar panels, serial and parallel connections of the panels and how electric energy is obtained from the panels. The control of the panels in the set was designed in such a way as to be performed using PLC, SCADA or microcontroller. In this way, it was made possible that in PLC, SCADA and microcontroller classes, controls can be implemented regarding the dual-axis movement of the panel. It was seen that using this set, students were enabled to receive better quality, more lasting and more effective education as a result of the instruction given to them.
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    Evaluation of strain values of critical anatomic regions for two different pterygomaxillary approaches in Le Fort I osteotomy: An experimental study
    (MEDICINA ORAL S L, 2017) Ozdemir, Yusuf-Bugra; Dolanmaz, Dogan; Esen, Alparslan; Terzioglu, Hakan; Saglam, Haci
    Background: The purpose of this experimental study was to measure stresses both on the pterygoid plates and the skull base following two different pterygomaxillary approaches in Le Fort I osteotomy. Material and Methods: The prepared skull models were randomly divided into 2 groups of 7. In the first group (A), the pterygomaxillary area was left intact. In the second group (B), pterygomaxillary separation was performed with a fine bur. The stresses were measured by using strain gauges. These strain gauges were attached to 6 different anatomical sites. The skull models were mounted on a servo-hydraulic testing unit. Each model was then subjected to a continuous linear tension until a plastic deformation was seen. Results: The statistical analyses showed that there were no significant differences (p>.05) between the 2 groups regarding the strain values. Moreover, no statistical differences (p>.05) were found between the two groups in terms of maximum applied forces. Conclusions: Considering the clinical conditions, the present study shows that when Le Fort I osteotomy performed without pterygomaxillary separation, there is no significant stress on the skull base during the downfracture. Moreover, it is considered that there is no need for an excessive force applied to perform downfracture in Le Fort osteotomies without pterygomaxillary separation.
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    The Irrigation System Fed from Biaxial PV Panels
    (IEEE, 2015) Terzioglu, Hakan; Kazan, Fatih Alpaslan; Sungur, Cemil
    In this study, an irrigation system which has an adaptive control system fed from the photovoltaic panels was designed and developed. The control system was designed as an electromechanical system which photovoltaic panel follows the sun on two axes, including both azimuth angle and zenith angle. In the executed system, the tracking of the sun was performed in both axes using dsPIC. Moreover, the control circuit with dsPIC processes the data obtained from the calculations of current-voltage and liquid levels. Differently from other studies in the literature, in this study, the source which feeds the irrigation system was determined according to the power obtained from the panel and PV panel was moved in two axes. The power generated by the panel is fed from battery if the power is below the determined power value and the panel is used if the power is above it. Through this developed algorithm, it was aimed to keep the tank full when the water is needed and prevent unnecessary discharge of the battery and lengthen its economic life depending on the quantity of charging-discharging of it. As a result of this study, the system was optimal activated without the requirement of any other energy except PV panel.
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    A New Approach to The Installation of Solar Panels
    (IEEE, 2015) Terzioglu, Hakan; Kazan, Fatih Alpaslan; Arslan, Mustafa
    The need for electric energy, which is an indispensable part of life, is increasing with each passing day in parallel to the developments in technology. However, the fact that costs rise in meeting these needs, and that damage is done to nature while energy is being obtained bring clean energy sources such as solar and wind energies to the agenda. On the other hand, the possibility that birds, though slightly, may suffer when wind is used as a source of energy renders solar energy more environment-friendly and important. Therefore, the use of solar panels is increasing rapidly. Solar panels, which, with their increased power capacity, are used in homes, country cottages, street lighting, meeting the electricity needs of public buildings, garden lighting and irrigation systems, are especially used in meeting the energy needs in specific remote locations. In this study, a new approach was suggested in the selection of material to be used in solar panel systems in country cottages. In the suggested approach, the panels are connected in two different groups taking into consideration the hours of usage of the loads that will consume the electricity. One of these groups is used to meet instant needs whereas the other is used to charge the battery. In this way, fewer solar panels are needed compared with the conventional calculation method. Moreover, the number of batteries needed by the system is also reduced. As a result, the number of solar panels and battery-related costs can be reduced. The proposed system was tried in a country cottage in the province of Konya in Turkey in the months of July and August and it was seen that the system was able to meet its energy need from photovoltaic panels and batteries without the network.
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    The Use of dsPIC in the Identification of Inertia Moment and Friction Coefficient of PMS and DC Motors
    (TRANS TECH PUBLICATIONS LTD, 2014) Terzioglu, Hakan; Kazan, Fatih Alpaslan; Selek, Murat
    In the present study, the inertia moment and friction coefficient of direct current (DC) and permanent magnet synchronous (PMS) motors were calculated. Retardation experiment was carried out to calculate these values, and current, voltage and rotation values of the motor were calculated with the help of sensors. The measurement results were read with the help of a card designed using dsPIC30F4013, a high-performance digital signal controller. Power and torque values were calculated using the data transferred into the computer. Graphs showing power-velocity and velocity-time were drawn through the use of the values that were measured and calculated. Power-time graph was obtained by using these two graphs. To be able to carry out numerical procedures using the power-time graph created, curve fitting method in MATLAB was used, and mathematical expression of the graph was obtained. The kinetic energy stored in the motor was calculated using the mathematical expression mentioned, and the inertia moment was found using this value. The friction coefficient was calculated using the torque equation for stationary running of the motor at rated speed. The results of the simulation carried out in MATLAB by using the calculated coefficients and those of the experiment were compared.