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Urban air quality in devel oping countries has decrease because of population density, industrialization and energy consumption. In th is study, the air quality of Bilecik city in Turkey was evaluated by using the cluster an alysis. The analysis wa s applied to the air pollution data such as total suspended particle and sulphur dioxide (SO2). Single linkage cluster method grouped three years air pollution data into two clusters under similarity. Based on the years of the mean concentratio ns of parameters, it was ...

Coal mining trucks is failure in accordance with many reasons. As, the size and complexity of trucks conti nue to increase, the equipment failures become ever more important. In this study, maintenance and re pair durations for coal mining trucks are examined by using factor analysis and The Kolmogorov-Smirnov test for two independent samples techniques. These techniques are applied to dataset obtained by six different trucks working in coal mining. As the result of these methods, it was determined that there are ...