Yayıncı "Pergamon-Elsevier Science Ltd" Fen Fakültesi için listeleme
Toplam kayıt 36, listelenen: 21-36
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Observation of negative photoconductivity in (ZnO)(x)(CdO)(1-x) films
(Pergamon-Elsevier Science Ltd, 2009)In this study, (ZnO)(x)(CdO)(1-x) films were prepared by ultrasonic spray pyrolysis (USP) technique at a substrate temperature of 400 degrees C. X-ray diffraction patterns of the films indicate that the (ZnO)(x)(CdO)(1-x) ... -
Performance analysis of a multi crystalline Si photovoltaic module under Mugla climatic conditions in Turkey
(Pergamon-Elsevier Science Ltd, 2013)Commercially available, a multi crystalline silicon (mc-Si) photovoltaic (PV) module has been monitored outdoors under Mugla climatic conditions in Turkey. Electricity yield of this module is calculated from the uninterruptible ... -
Performance comparison of a double-axis sun tracking versus fixed PV system
(Pergamon-Elsevier Science Ltd, 2012)In the present study, performance results of two double axis sun tracking photovoltaic (PV) systems are analyzed after one year of operation. Two identical 7.9 kWp PV systems with the same modules and inverters were installed ... -
Polynomial solution of high-order linear Fredholm integro-differential equations with constant coefficients
(Pergamon-Elsevier Science Ltd, 2008)In this study, a practical matrix method is presented to find an approximate solution of high-order linear Fredholm integro-differential equations with constant coefficients under the initial-boundary conditions in terms ... -
Potassium compounds for gamma spectrometer efficiency verification
(Pergamon-Elsevier Science Ltd, 2017)Now-a-days several standard and well calibrated radioactive sources are available for gamma spectrometer efficiency calibration but at some situations, like lack of standard calibrators, in need of verification of standards ... -
A practical and effective strategy for the thin and uniform carbon layer onto LiCoPO4 cathode surface in terms of the rate capability and cycle stability
(Pergamon-Elsevier Science Ltd, 2016)Nanoscale pure LiCoPO4 and LiCoPO4/C materials were successfully synthesized as excellent quality cathode materials for high-voltage and high energy density lithium-ion applications. These materials are simply produced by ... -
Shading effect on the energy rating of two identical PV systems on a building facade
(Pergamon-Elsevier Science Ltd, 2015)The first BIPV system of Turkey was installed on the facade and two towers of the Staff's Block of Education Faculty building of Mugla Sitki Kocman University in February 2008. The PV systems cover 405 m(2) (60 tilted ... -
Silicon improves salinity tolerance in wheat plants
(Pergamon-Elsevier Science Ltd, 2008)Durum wheat (Triticum durum cv. Gediz-75) and bread wheat (Triticum aestivum cv. lzmir-85) were grown in a complete nutrient solution in a growth room to investigate effect of silicone supplied to the nutrient solution on ... -
Simulation for capacitance correction from Nyquist plot of complex impedance-voltage characteristics
(Pergamon-Elsevier Science Ltd, 2008)The impression of series resistance on unipolar semiconductor device's capacitance-voltage spectrum is discussed by conventional impedance and admittance analysis, and it is shown that series resistance may cause large ... -
Soft sets and soft rings
(Pergamon-Elsevier Science Ltd, 2010)Molodtsov (1999) introduced the concept of soft sets in [1]. Then, Maji et al. (2003) defined some operations on soft sets in [2]. Aktas and Cagman (2007) defined the notion of soft groups in [3]. Finally, soft semirings ... -
Studies on the antioxidant activity of essential oil and different solvent extracts of Vitex agnus castus L. fruits from Turkey
(Pergamon-Elsevier Science Ltd, 2009)This study is designed to examine the chemical composition and antioxidant activity of the essential oil and different solvent extracts of Vitex agnus castus. GC and GC-MS analysis was resulted in the detection of 27 ... -
Synthesis and spectroscopic studies of copper(II) and nickel(II) complexes containing hydrazonic ligands and heterocyclic coligand
(Pergamon-Elsevier Science Ltd, 2005)Two types of copper(II) and nickel(II) complexes derived from benzophenone anthranoylhydrazone (L-1), 2-acetonaftanone anthranoylhydrazone (L-2), 4-phenylacetonaftonone anthranoylhydrazone (LA benzophenone salicyoylhydrazone ... -
Synthesis and spectroscopic studies of mixed-ligand and polymeric dinuclear transition metal complexes with bis-acylhydrazone tetradentate ligands and 1,10-phenanthroline
(Pergamon-Elsevier Science Ltd, 2006)Two types of dinuclear copper(II) and nickel(II) complexes with two tetradentate N2O2 donor ligands 1,4-bis(1-anthranoylhydrazonoethyl)benzene (L-1), 1,4-bis(1-salicyloylhydrazonoethyl)benzene (L-2) and N,N '-bidentate ... -
Topological structure of fuzzy soft sets
(Pergamon-Elsevier Science Ltd, 2011)In this paper, the concept of fuzzy soft topology is introduced and some of its structural properties such as neighborhood of a fuzzy soft set, interior fuzzy soft set, fuzzy soft basis, fuzzy soft subspace topology are ... -
Tunnelling enhanced recombination in polycrystalline CdS/CdTe and CdS/Cu(In,Ga)Se-2 heterojunction solar cells
(Pergamon-Elsevier Science Ltd, 2005)This article investigates the results of current-voltage measurements made at different temperatures on vacuum deposited ZnO/CdS/Cu(In,Ga)Se-2 and CdS/CdTe heterojunction solar cells. We propose that the current-voltage ... -
What do we need for the lithium-air batteries: A promoter or a catalyst?
(Pergamon-Elsevier Science Ltd, 2016)LaSr-based perovskite materials are frequently studied as catalyst at the cathode of the lithium-air batteries (LAB). In this study, we compared Pb, Ba and Sr in the form of La0.65X0.35MnO3 (X = Pb, Ba, Sr) at the cathode ...