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    Assessment of the Problems Faced by Construction Equipment Operators Actively Working in the Field and Risk Analysis of Actively Used Equipment
    (2025) UYAR, MUHAMMED MUSTAFA; DEMİRPOLAT, Ahmet Beyzade
    When research and statistics on operators actively working in the field are carefully examined, it becomes clear how serious the consequences of accidents caused by construction machinery can be. Workplace accidents caused by construction machinery and the issues they encounter rank among the top categories of accidents resulting in death or the loss of the ability to continue working when compared to other workplace accidents in the industry. To minimize workplace accidents and issues that may arise due to operator negligence when using machinery actively on the job site, certain precautions must be taken. To minimize these situations, the following measures are listed: timely maintenance of machinery, increasing the rest periods for both the machinery and the operator, increasing training and practical exercises, conducting a site survey before work begins, and implementing workplace safety measures. In our study, research and technical analyses were conducted on the problems encountered by operators actively working in the field in order to enable them to work more efficiently. Additionally, risk analyses of construction machinery actively used in the field were conducted, and the results were examined. Six types of construction machinery were included in the risk analysis conducted in our study. For forklifts, the importance level was 1 and the risk value was 20, with the highest risk activity identified as hazards arising from trucks, trailers, and workers entering the forklift work area. As a result of our study, the importance of operator training, the organization of the work site, the importance of periodic maintenance of construction equipment, and the importance of controlling the effects of work-related stress have been highlighted.
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    INVESTIGATION OF THE USE OF NANOPARTICLES IN THERMAL INSULATION MATERIALS
    (2024) DEMİRPOLAT, Ahmet Beyzade; UYAR, MUHAMMED MUSTAFA
    Today, the concept of energy conservation has become a much more important concept due to the difficulty in accessing energy and the increasing cost of energy resources. The fact that fossil energy resources have started to be depleted in recent years worldwide has led mankind to renewable and sustainable energy resources. However, the fact that such resources are not yet at a level to meet the needs has shown the necessity of using energy economically. In our research, the thermal conductivities of the nanoparticles produced by us were determined in terms of evaluating the use of nanoparticle materials, which is a new perspective on energy saving, in thermal insulation materials. Then, the thermal conductivity coefficients of the nanoparticles in the literature were investigated and compared with the values of the nanoparticles produced by us, and the suitability of the use of the nanomaterials we produced in insulation materials was evaluated. In the study, the heat transfer coefficients of Al2O3 and CuO nanoparticles were found to be 34.2 and 65.4 W/mK, respectively. In the literature review, it was seen that these values were 36 and 65.8, respectively. As a result of the evaluations, it was observed that the CuO nanoparticle produced by us gave similar results with the literature, and the Al2O3 nanoparticle gave better results than similar studies at a rate of 5%.