Yayın tarihi için Fen Fakültesi listeleme
Toplam kayıt 1146, listelenen: 321-340
-
Highly Soluble Polyoxyethylene-Perylene diimide: Optical, Electrochemical and Photovoltaic Studies
(Chem Soc Pakistan, 2011)The synthesis and optical properties of a new dye molecule [PERKAT] were reported. The molecular structure of PERKAT was characterized by FT-IR and H-1 NMR. Optical properties of PERKAT were investigated by UV-Vis absorption, ... -
Synthesis and Spectroscopic Properties of a Novel Perylenediimide Derivative
(Chem Soc Pakistan, 2011)A novel symmetric 3,4,9,10-perylenetetracarboxylic acid derivative (PDI1) dye based on thiophene donor group was synthesized and characterized by FT-IR and H-1 NMR. Cyclic Voltammetry analysis is performed to determine the ... -
EFFECTS OF MAGNESIUM AND CALCIUM CATIONS ON BIOFILM FORMATION BY Sphingomonas paucimobilis FROM AN INDUSTRIAL ENVIRONMENT
(Parlar Scientific Publications (P S P), 2012)Bacterial biofilms may form on all surface-associated natural and many industrial environments. Biofilm formation requires particular notice due to its associated risks for human health and its impact on environmental ... -
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 ... -
A Chebyshev Polynomial Approach for High-Order Linear Fredholm-Volterra Integro-Differential Equations
(Gazi Univ, 2012)The purpose of this study is to present a method for solving high order linear Fredholm-Volterra integrodifferential equations in terms of Chebyshev polynomials under the mixed conditions. The method is based on the ... -
A Bessel collocation method for numerical solution of generalized pantograph equations
(Wiley, 2012)This article is concerned with a generalization of a functional differential equation known as the pantograph equation which contains a linear functional argument. In this article, we introduce a collocation method based ... -
Biomonitoring of trace element accumulation in plants growing at Murat Mountain
(Springer, 2012)The purpose of this study is to determine the present levels of atmospheric trace element pollution in the Murat Mountain of Aegean Region in the western part of Turkey. Therefore, 29 different plants were selected as ... -
A numerical approach to solve the model for HIV infection of CD4(+)T cells
(Elsevier Science Inc, 2012)In this study, we will obtain the approximate solutions of the HIV infection model of CD4(+)T by developing the Bessel collocation method. This model corresponds to a class of nonlinear ordinary differential equation ... -
Perylene Monolayer Protected Gold Nanorods: Unique Optical, Electronic Properties and Self-Assemblies
(Amer Chemical Soc, 2012)Here we report the synthesis and characterization of organosoluble perylene monolayer protected gold nanorods. From H-1 NMR, FT-IR, and differential scanning calorimetry experiments, the successful thiol exchange and ... -
Screening theory based modeling of the quantum Hall based quasi-particle interferometers, defined at quantum dots
(Elsevier Science Bv, 2012)In this work, we investigate the spatial distributions and the widths of the incompressible strips, i.e. the edge-states. The incompressible strips that correspond to nu = 1,2 and 1/3 filling factors are examined in the ... -
The visibility of IQHE at sharp edges: experimental proposals based on interactions and edge electrostatics
(Iop Publishing Ltd, 2012)The influence of the incompressible strips on the integer quantized Hall effect (IQHE) is investigated, considering a cleaved-edge overgrown (CEO) sample as an experimentally realizable sharp edge system. We propose a set ... -
The effect of disorder on integer quantized Hall effect
(Elsevier, 2012)We study the effects of disorder on the integer quantized Hall effect within the screening theory, systematically. The disorder potential is analyzed considering the range of the potential fluctuations. The short-range ... -
Abietane diterpenoids as butyrylcholinesterase inhibitors from Salvia species
(Georg Thieme Verlag Kg, 2012)Salvia (sage) species have been used as medicinal plants since ancient times in the treatment of cold, sore throat, tuberculosis, angina pectoris, stomache ache, and menstrual disorders and they have been known as sedative, ... -
4-Butoxy-N '-[1-(4-methylphenyl)ethyl-idene]benzohydrazide
(Int Union Crystallography, 2012)The molecule of the title compound, C20H24N2O2, exists in a trans conformation with respect to the C N bond. The dihedral angle between the benzene rings is 79.0 (1)degrees. In the crystal, N-H center dot center dot center ... -
Rapid Reversible Degradation of Silicon Thin Films by a Treatment in Water
(Iop Publishing Ltd, 2012)Metastability effects in amorphous and microcrystalline silicon thin films induced by exposure to atmospheric gases and water are investigated. A simple procedure is described which allows studying such effects in a ... -
Conduction Mechanism of an Infrared Emitting Diode: Impedance Spectroscopy and Current-Voltage Analysis
(Maik Nauka/Interperiodica/Springer, 2012)The bias dependent complex impedance spectra of a conventional GaAs based infrared emitting diode have been studied in the temperature range 150-300 K. It is found that for bias voltages lower than 0.7 V, the device behaves ... -
Event-Oriented, Model-Based GUI Testing and Reliability Assessment-Approach and Case Study
(Elsevier Academic Press Inc, 2012)It is widely accepted that graphical user interfaces (GUIs) highly affect-positive or negative-the quality and reliability of human-machine systems. However, quantitative assessment of the reliability of GUIs is a relatively ... -
PHOTOSYNTHETIC CHARACTERISTICS OF CAROB TREE (CERATONIA SILIQUA L.) AND CHEMICAL COMPOSITION OF ITS FRUIT ON DIURNAL AND SEASONAL BASIS
(Pakistan Botanical Soc, 2012)The photosynthetic capacity of carob tree (Ceratonia siliqua L.) and the quality indices of the fruits growing under natural conditions, at Athens and Rethymno in Greece, were measured on diurnal and seasonal basis. The ... -
Empirical Standard Weight Equation for the Aegean Chub Squalius fellowesii, an Endemic Freshwater Fish Species of Western Anatolia, Turkey
(Taylor & Francis Inc, 2012)Data on length and weight of Aegean chub Squalius fellowesii, an endemic species distributed in the Aegean drainages of Anatolia, Turkey, were used to calculate a standard weight (Ws ) equation by means of the empirical ... -
Biocentri-voltammetry for the enzyme assay: a model study
(Royal Soc Chemistry, 2012)This work constitutes the first biocentri-voltammetric application for acetylcholinesterase (AChE) activity assay. After the optimization of working conditions like reaction time, centrifugation speed and time and enzyme ...
