Cilt 2, Sayı 1, Ocak 2004
Permanent URI for this collectionhttps://hdl.handle.net/11413/190
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Browsing Cilt 2, Sayı 1, Ocak 2004 by Language "en_US"
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Publication Open Access An Investigation of Bursa-Uludağ Wolfram Ore By NAA and EDXRF Methods(İstanbul Kültür Üniversitesi Yayınları, 2004-01) AKYÜZ, ZEKİ TANILIn this study 4 wolfram ore samples obtained from Bursa-Uludağ wolfram deposit, together with concentrated scheelite sample , that was enriched in Scheelite mineral (CaWo), obtained from the ore samples were analysed for their majör and majör and minör constituents by radioisotepe excited energy dispersive X-ray fluorescence (EDXRF) and neutron activation analysis (NAA) techniques. The concentrations of Na, Mg, Al, Si,P, S, Ca, Sc, Ti, Cr, Mn, Co, Fe, Cu, Ni, Zn, Ga, As, Se, Rb, Sr, Y, Zr, Mo, Ru, Ba, La, Ce, Nd, Eu, Ag, Sb, Cs, Yb, Hf, Ta, W, Th, U elements have been determined.Publication Open Access Distortions In the Flux Distribution In Two Dimensional Geometries(İstanbul Kültür Üniversitesi Yayınları, 2004-01) Sağlam, SemihaThe subject of this study is distortions of flux distributions observed in Discrete Ordinates Method. To observe these distortions an important two dimensional transport code has been chosen and executed for a wellknolwn test problem. The distributions of scalar flux have been examined by using standard Gauss quadratures for integraJ terms appearing in the source term. Then, the results have been compared with the other transport code and the ray-effect problem has been discussed in detail.Publication Open Access Environmental Impact of the Utilization of a Geothermal Area(İstanbul Kültür Üniversitesi Yayınları, 2004-01) Baba, AlperGeothermal energy is generally accepted as being on environmentally benign energy source. Geothermal development over the lost 40 years in world, has shown that it is not completely free of impacts on the environment. Environmental impocts are projected to limit the use of this needed energy resource. Most of high temperature of geothermal waters in the Wortd are highly mineralized with elevated levels ol orwnic (As). boron (B). cadmium (Cd) and lead (Pb) resulting in scaling and conosion. Since they are not reinjected, geothermal discharges also resulh in observed contamination of soil and weterways. Reinjection is recommended to be installed as o standard procedure to avoid these adverse impactPublication Open Access Fine Structure of the Configurations 3d, 3d4s5s, 3d5s, 3d4s4d and 3d5s of Neutral Scandium Atom(İstanbul Kültür Üniversitesi Yayınları, 2004-01) Öztürk, İpek K.lnvestigation of parametric analysis of the fine structure (fs) for the even parity configurations 3d3. 3d4s5s.3d5s2,3d4s4d end 3d25s configurations of atomic Scandium (Sc I) was aimed in this work. Fine structure calculation has been done by using multi configuration fit method. More precise values for the theoretical g foctors are also reported .Publication Open Access Natural Radioactivity and EDXRF Analysis of Ashes from Coal Power Plants of Turkey(İstanbul Kültür Üniversitesi Yayınları, 2004-01) Varinlioğlu, Ahmet; Köse, Abdullah; AKYÜZ, SEVİM; AKYÜZ, ZEKİ TANILNatural radioactivity and the chemical composition of ten ash samples collected from six coal power plants of Turkey have been analysed. Gamma-isotopic analysis indicated that all the samples contain Ra•226, U238 and Th-232,But, K-40 and Cs-134 have not been found in the samples in the detection limits. On the other hand, Cs-137 was found only in the ash samples taken from Yatağan coal power plant (603± 15 Bq/kg). Mineralogical analysis of the samples showed that they contained significant amounts or clays and glass. Less amounts of quartz, feldspar and magnetite minerals exist in the samples. Major and minor element analyses of the ash samples were done by X•Ray Fluorescence, XRF/EDXRF, technique. The natural radioactivity of an ash sample taken from the electro-filter of the Ambarlı fuel oil power plant was also anaysed for comparison and iit was found that sample contained the least amount of U-238,Th-232 and Ra-226Publication Open Access Some Result for the Janowski's P-Fold Symmetric Starlike Functions of Complex Order(İstanbul Kültür Üniversitesi Yayınları, 2004-01) Bolcal, Metin; Şen, Arzu; POLATOĞLU, YAŞARJanowski' s starlike functions of complex order and hove power series of the forrn f(z)--=z + a ,.,zp•I + a1P., z2p+I + … wehere p = 1,2,3,... are shown to satisfy the relation f(z) = ([g ( z ) ] where g(z) is Jonowski' s starlike fuoctions of complex order with power series g(z) = Z + b2 Z2 + b3 Z3 + .., .Distortion results and Koebe domains are obtained.