Yazar "Sert, İbrahim Ünal" seçeneğine göre listele

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    Fuzzy Expert System Design for Operating Room Air Condition Control Systems (Vol 36, Pg 9753, 2009)
    (Pergamon-Elsevier Science Ltd, 2010) Etik, Nazmi; Allahverdi, Novruz; Sert, İbrahim Ünal; Sarıtaş, İsmail
    [Abstract not Available]
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    Fuzzy expert system design for operating room aircondition control systems
    (2007) Sarıtaş, İsmail; Etik, Nazmi; Allahverdi, Novruz; Sert, İbrahim Ünal
    In this study, a controlled fuzzy expert system (FES) was designed to provide the conditions necessary for operating rooms. For this purpose, real operating rooms have been studied to see if there are more useful, reliable and comfortable ones. How a operating room can be controlled with FES and its advantages and disadvantages have also been researched. For a theoretically visible FES to show system's advantage a prototype operating room was built and a suitable configuration was designed. In this system, heat, particle, humidity and oxygen are used as input parameters, and fresh air entrance and the fan circulation are chosen as output parameters. With the help of an expert, appropriate language expressions and the membership function of these expressions were defined. The sensors were classified and sensor information was transferred to computer by means of an interface designed. To transfer the data to the system simultaneously, an interface was written in C#. Whether it provides the most suitable control for the system prototype was determined by simulating the operation with varying number of personnel and duration of time. In these trials, input, output and the other necessary parameters were saved in the computer. Consequently, in this study we obtained very good results in prototype operating room control with FES. The results of analyses carried out indicated that the controls performed with FES provide more economical, comfortable, reliable and consistent controls and that they are feasible in real operating rooms. © 2007 ACM.
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    Microcontroller based hypothermia system
    (2007) Işık, Ali Hakan; Sert, İbrahim Ünal; Yavru, Nuri; Allahverdi, Novruz
    The aims of developing Microcontroller based Renal Thermoelectric Apparatus that is used in the present research are to solve the problems that were met previously when the hypothermia is applied. Some of these problems are to reach the required temperature in a desired time for cooling takes place on some part of the kidney parenchyma, spending short time for initialization of cooling and to construct small cooling modules. © 2007 ACM.
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    Prognosis of Prostate Cancer by Artificial Neural Networks
    (Pergamon-Elsevier Science Ltd, 2010) Sarıtaş, İsmail; Özkan, İlker Ali; Sert, İbrahim Ünal
    In this study, an artificial neural network has been devised that yields a prognostic result indicating whether patients have cancer or not using their free prostate-specific antigen, total prostate-specific antigen and age data. Though this system does not diagnose cancer conclusively, it helps the doctor in deciding whether a biopsy is necessary by providing information about whether the patient has prostate cancer or not. Data from 121 patients who were definitively diagnosed with cancer after biopsy were used in devising the system. The results of the definitive diagnoses of the patients and the results of the ANN that was performed were analysed using confusion matrix and ROC analyses. As a result of ANN, which was implemented on the basis of these analyses, success rates of 94.11% and 94.44% were achieved for prognosis of disease and validity, respectively. The ANN, which yielded these high rates of reliability, will help doctors make quick and reliable diagnoses without any risks and make it a better option to monitor patients with low prostate cancer risk on whom biopsies must not be carried out through a policy of wait and see.