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Zeynep Aygun,Necmi Yarbasi 한국물리학회 2018 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.72 No.7
In the present paper, our aim is to investigate the structural, compositional and temperaturedependent magnetic properties of pine resin and pine bark obtained from a yellow pine forest situated in Oltu/Erzurum, a tertiary depositional area, located on the central area of the Northeast Anatolian Fault Zone. With the purpose of understand the regional effects on pine resin and pine bark obtained from a yellow pine forest, electron paramagnetic resonance spectroscopy is used to determine paramagnetic features at different temperatures (room temperature, 65 ℃, 75 ℃ and 85℃). An X-ray diffraction experiment is performed to obtain the crystalline nature of the resin and the bark. Also, scanning electron microscopy and energy dispersive spectroscopy methods are preferred for analyzing the surface morphology and the elemental composition of the samples, respectively.
Zeynep Aygun 한국물리학회 2019 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.75 No.2
In this study, we aimed to investigate the characteristics of the cultivated agricultural lands located in volcanic regions in the Eastern part of Turkey. East Anatolian Volcanic Province has two well-known volcanic centers: S\"uphan and Nemrut. Samples used in this research were collected from the fields in Bitlis, G\"uroymak, Tatvan, Ahlat and Adilcevaz, which are situated in the foothills of the Nemrut and the S\"uphan volcanic mountains. In order to analyze and compare the structural and magnetic properties of these soil samples, which can show regional features, we used several spectroscopic techniques (electron paramagnetic resonance, X-ray diffraction, Fourier-transform infrared spectrophotometer, scanning electron microscopy, and energy dispersive spectroscopy). The obtained magnetic, structural and elemental results are discussed in detail in terms of whether the samples of these volcanic agricultural areas have different or similar characteristics.