Yazar "Çevik, U." için listeleme
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Assessment of metal element concentrations in mussel (M. Galloprovincialis) in Eastern Black Sea, Turkey
Çevik, U.; Damla, N.; Kobya, A.I.; Bulut, V.N.; Duran, C.; Dalgıç, Göktuğ; Bozacı, R. (Elsevier, 2008)The main goal of this work is to determine the effects of pollution of copper, lead and zinc mines on the Eastern Black Sea. Metal and heavy metal concentrations in the Eastern Black Sea mussels were measured using Energy ... -
Calculation of radiation attenuation coefficients, effective atomic numbers and electron densities for some building materials
Damla, N.; Baltaş, Hasan; Çelik, A.; Kırış, Erkan; Çevik, U. (2012)Some building materials, regularly used in Turkey, such as sand, cement, gas concrete (lightweight, aerated concrete), tile and brick, have been investigated in terms of mass attenuation coefficient, effective atomic, ... -
Determination of radioactivity levels and hazards of soil and sediment samples in Fi{dotless}rti{dotless}na Valley (Rize, Turkey)
Kurnaz, A.; Küçükömeroğlu, B.; Keser, Recep; Okumuşoğlu, Nazmi Turan; Korkmaz, F.; Karahan, G.; Çevik, U. (Elsevier, 2007)The natural radioactivity levels in soil and sediment samples of Fi{dotless}rti{dotless}na Valley have been determined. To our knowledge, there seems to be no information about radioactivity level in the Fi{dotless}rti{dotless}na ... -
Determination of the effective atomic numbers and electron densities for YBaCuO superconductor in the range 59.5-136 keV
Baltaş, Hasan; Çevik, U. (Elsevier, 2008)The effective atomic numbers and electron densities of YBa2Cu3O7-? superconductor at 59.5, 65.2, 77.1, 94.6, 122 and 136 keV were calculated by using the measured mass attenuation coefficients. Measurements were made by ... -
Investigation of some superconducting properties of ytterbium diffusion-doped YBa2Cu3O7-x superconductors
Öztürk, K.; Çelik, Şükrü; Çevik, U.; Yanmaz, E. (Elsevier, 2008)The effect of Yb diffusion on structural evolution and superconducting properties of YBa2Cu307-x (Y123) prepared in the bulk polycrystalline form were studied. The ytterbium (Yb) diffusion in superconducting Y123 ceramic ... -
Measurement of the mass attenuation coefficients and electron densities for BiPbSrCaCuO superconductor at different energies
Çevik, U.; Baltaş, Hasan (Elsevier, 2007)The mass attenuation coefficients for Bi, Pb, Sr, Ca, Cu metals, Bi2O3, PbO, SrCO3, CaO, CuO compounds and solid-state forms of Bi1.7Pb0.3Sr2Ca2Cu3O10 superconductor were determined at 57.5, 65.2, 77.1, 87.3, 94.6, 122 and ... -
Radiological and chemical assessment of phosphate rocks in some countries
Çevik, U.; Baltaş, Hasan; Tabak, Ahmet; Damla, N. (Elsevier, 2010)In this study, the radiological, structural and chemical characterizations of Mardin-Mazi{dotless}da?i{dotless} phosphate rock, which is an important phosphate fertilizer source in Turkey were investigated and compared to ...
