Yazar "Akdag, Mustafa" seçeneğine göre listele

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    The effects of traditional instruction and PowerPoint presentation-supported instruction on student's achievement
    (Turkish Education Assoc, 2008) Akdag, Mustafa; Tok, Hidayet
    This study was carried out to determine the effects of instruction done by traditional instruction methods and computer- supported PowerPoint presentation in teaching on students' achievement. The study was carried out in Education Faculty of Inonu University during the spring term of 2002-2003 academic year. In the study, pretest/ post- test experimental design with nonequivalent control group was used. The Department of Social Studies Teacher Training selected randomly was defined as the experimental group and the Department of Pre-School Teacher Training was defined as the control group. PowerPoint lecture material consisted of 17 slides. Independent groups t- test was used in the statistical analyses. Between the experimental and the control group, p students' post- test and achievement scores, significant differences were found in favor of the experimental group in which PowerPoint presentation supported instruction was used.
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    Enhancing Fault Location Accuracy in Transmission Lines Using Transient Frequency Spectrum Analysis: An Investigation into Key Factors and Improvement Strategies
    (Mdpi, 2024) Akdag, Mustafa; Mamis, Mehmet Salih; Akmaz, Duzgun
    Fault location estimation in transmission lines is critical for power system reliability. Various methods have been developed for this purpose, among which transient frequency spectrum analysis (TFSA) stands out as a recent method based on travelling wave (TW) theory. TFSA determines the fault location by analyzing the frequency spectrum of transient currents and/or voltages at the instant of the fault, offering advantages such as independence from fault impedance and the ability to locate faults with one-side measurements. Despite its success in fault location, TFSA has several considerations that warrant detailed investigation. This study explores the effects of source inductance, series compensation, fault arc, and current transformer (CT) characteristics on transient frequencies. Additionally, the impact of noise on TFSA results is examined. The new proposed source inductance compensation method can reduce the error of 6.55% to 0.88%, where the same error can be reduced to 3.45% with the compensation method given in previous study. Strategies to enhance accuracy are discussed and compared to previous studies, including a proposed detection approach providing appropriate data size and precise wave propagation speed calculations. These findings contribute to a deeper understanding of TFSA's limitations and inform practical improvements for fault location accuracy in power transmission systems.
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    The Relation between Prospective Teachers' Attitudes towards Uncertainty and Motivation in Teaching
    (Mdpi, 2018) Senol, Cem; Akdag, Mustafa
    The aim of this study is to determine the relationship between prospective teachers' attitudes towards uncertainty and their motivation in teaching. The research was conducted with a correlational model. In this study, exploratory and predictive correlation techniques were used. The study group was comprised of 396 fourth grade students studying at the Inonu University Faculty of Education in the academic year of 2015-2016. A simple linear regression analysis and Pearson Product Moment analysis were conducted on the obtained data. A moderate negative and significant relationship was found between prospective teachers' attitudes towards uncertainty and their motivation in teaching, and the attitude towards to uncertainty was observed to be a significant predictor of motivation in teaching. In addition to this, a moderate negative significant relationship was found between prospective teachers' attitudes towards uncertainty and their intrinsic and extrinsic motivation, and the attitudes towards to uncertainty was observed to be a significant predictor of the intrinsic and extrinsic motivation.