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ERSOY, SEZGİN

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ERSOY

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SEZGİN

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Now showing 1 - 5 of 5
  • PublicationOpen Access
    The effect of a new teaching methodology on learning performances of automotive - mechatronics students
    (ELSEVIER SCIENCE BV, 2010) KÜÇÜK, HALUK; Ersoy, Sezgin; Kucuk, Haluk; Uzunboylu, H
    In this study a new methodology for teaching of Automotive Mechatronics course is proposed. The students who have taken the course were divided into two groups: the first, for classical mode of teaching and the other for the new model of instruction. The performance of the students were measured by pre-test and post-test. The results show that, handing out the class material beforehand and having the students learn by practicing in the laboratory, increase the students' interest and success when compared to those being taught the theory, in class and having completed the experiments in the lab afterwards. (C) 2010 Elsevier Ltd. All rights reserved.
  • Publication
    Effects of HIPS on the Sound Absorption and Impedance Ratio of SEBS/HIPS/CaCO3 Polymer Composites
    (TAYLOR & FRANCIS INC, 2012) TAŞDEMİR, MÜNİR; Tasdemir, Munir; Ersoy, Sezgin; Ulug, Ebru
    A sound absorption material composed of styrene ethylene butadiene styrene, high impact polystyrene and CaCO3 has been developed. Its sound absorbing characteristic was investigated in the impedance tube, according to transfer function method. Measurements show that HIPS ratios have effect on the absorption performance of the blend because of their microstructures and features. The structure and properties of the blend is characterized using a scanning electron microscopy (SEM). Furthermore, styrene ethylene butadiene styrene and high impact polystyrene polymer blend was subjected to examinations to obtain their hardness and Izod impact strength. When the sound absorption characteristics of the materials are examined, a unsteady behaviour is observed up to the level of 1600 Hz. It is determined that sound absorption characteristics of all materials increase after this point. A high and steady behaviour is observed, particularly after 4800 Hz.
  • Publication
    Investigation of Sound Absorption and Impedance Ratio of SBR/HIPS Polymer Blends
    (TAYLOR & FRANCIS INC, 2012) TAŞDEMİR, MÜNİR; Ulug, Ebru; Tasdemir, Munir; Ersoy, Sezgin
    A sound absorption material composed of styrene butadiene rubber and high impact polystyrene blend has been developed. With the increased amount of HIPS in SBR/HIPS polymer blends, hardness and Izod impact strength values of the resultant material increased. Sound-absorbing characteristics of SBR/HIPS polymer blends were investigated in the impedance tube, according to transfer function method. The sound absorption coefficients are generally above 0.2 with the maximum of 0.5. It reveals that soft blends have good sound absorption ability in 4000 Hz frequency range. For all groups the least sound absorption rate was seen in the area of 315 Hz at the rate of 0.01. With the increase of frequency for all groups impedance ratio decreased. With addition of SBR rubber to the HIPS, the adhesion and distribution of the present phases were considerably enhanced as well.
  • PublicationOpen Access
    Thermal and Mechanical Properties of Walnut Shell and Glass Fiber Reinforced Thermoset Polyester Composites
    (ASIAN JOURNAL OF CHEMISTRY, 2013) BEYİT, ALİ; Onat, Ayhan; Pazarlioglu, S. Serdar; Sancak, Erhan; Ersoy, Sezgin; Beyit, Ali; Erdem, Ramazan
    Recent studies have shown that focusing on industrial waste materials will enable us to recover the economical. values. In line with the objective of present study, walnut shell is a waste material was selected to ensure economic recovery. Furthermore, biaxial fiber glass based fabrics were used in order to improve the mechanical properties of the composite materials to be produced. Thermosetting polyester resin was used as matrix material in producing composite materials. Nine different composite materials were produced as a result of addition of walnut shells at different sizes and ratios. Mechanical tests and thermal conductivity tests of these composite materials were carried out and the results were assessed.
  • Publication
    Investigation of new education methods using applied mechatronics
    (Nova Publisher, 2011-01-01) ERSOY, SEZGİN; ERSOY S.
    Explores the broad spectrum of science education with a focus on such topics as mechatronics, a multidisciplinary field combining mechanical engineering, electronics and computer technology; science education through research, science and technology museums as places for critical thinking.