Yazar "Demirarslan, Kazim Onur" seçeneğine göre listele

Listeleniyor 1 - 2 / 2
  • Küçük Resim
    Öğe
    Air pollution due to coal mining: Literature review about particulate matter and methane emissions
    (Union of Chambers of Engineers and Architects of Turkey, 2017) Demirarslan, Kazim Onur; Kaya, Ali
    In spite of development of renewable energy technologies, our dependence on fossil fuels still has been continuing. Coal is the most suitable fuel in terms of price and efficiency in fossil fuels. With the industrial revolution, coal using steam engines increased and as a result of this, coal demand increased. The need for coal makes coal production increased and so, environmental problems increase because of coal mining. One of these problems is air pollution. Especially Particulate Matter (PM) and Methane (CH4) emissions which occurred in open and underground mining represent major place. In this research, PM and methane emissions situation and precautions in coal mines around the world are explained by making literature review. Also, this research is intended to be resource to other planned studies.
  • Küçük Resim
    Öğe
    Sound level measurement and spectrum analysis in full and empty various social spaces
    (Sakarya University, 2021) Başak, Serden; Demirarslan, Kazim Onur
    The noise seen in different areas throughout human history has turned into a frequently complained problem with the increasing industry and technology. Unfortunately, the problem of noise has become a part of social life today. Noise pollution, which is a side effect of urbanization and industrialization, threatens society's mental and physical health. However, knowing the noise level makes it possible to take precautions. In some cases where the sound limit levels set by laws and/or regulations of many countries are not exceeded, people may complain about the noise. Noises that occur in different places in educational institutions such as universities can cause adverse effects on both students and the administrative and academic staff working there. The noise in the places where the staff and students spend their time both for relieving their hunger and resting and socializing during their rest periods prevents people from relaxing. This situation causes people not to feel rested when returning to their lessons or work. In this analysis, the Artvin Coruh University staff dining hall's sound levels, the student dining hall, and the cafeteria/bowling alley spaces used by the students were measured when they were empty and full. Besides, the bandgap of the sounds complained about by the users was determined by spectrum analysis. As a result of the study, noise levels of 29.43 dB(A), 30.75 dB(A), and 32.94 dB(A) were obtained in the measurements made in empty spaces, and 56.10 dB(A), 57.56 dB(A)and 69.76 dB(A) in the measurements made in filled areas.