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Toplam kayıt 873, listelenen: 191-200
Polymer coated pumice aggregates and their properties
(Elsevier Sci Ltd, 2014)
Pumices which are preferred due to their properties such as low unit weight, heat insulation property, resistance against fire were combined with polymer, the material of our age, to produce light concrete aggregate. In ...
An activity based on an inquiry-driven creative drama: stray animals need some shade
(Routledge Journals, Taylor & Francis Ltd, 2021)
This study aimed to develop, introduce, and conduct an inquiry-driven creative drama activity. The activity, for elementary students, related to the transmission of light and full shadow. In the activity, which consisted ...
Synthesis, characterization and comparative studies on the photophysical and photochemical properties of metal-free and zinc(II) phthalocyanines with phenyloxyacetic acid functionalities
(Pergamon-Elsevier Science Ltd, 2011)
The synthesis and characterization of new peripherally and non-peripherally tetra-substituted metal-free and zinc(II) phthalocyanines with 2-, 3- and 4-phenyloxyacetic acid functionalities are described for the first time ...
EEG Based Mental Workload Estimation System
(Ieee, 2020)
This In this study, a system is proposed to predict mental workload for human-machine interface applications. EEG signals were recorded by performing 2-back test, consisting of conditioner and target stimulus, which is ...
Modelling of dynamic cutting force coefficients and chatter stability dependent on shear angle oscillation
(Springer London Ltd, 2017)
Productivity of high-speed turning operations is limited by the onset of self-excited vibrations known as chatter. Unless avoided, chatter vibrations may cause large dynamic loads damaging the machine spindle, cutting tool ...
Metal (Al, Fe, Mn and Cu) distributions and origins of polycyclic aromatic hydrocarbons (PAHs) in the surface sediments of the Marmara Sea and the coast of Istanbul, Turkey
(Pergamon-Elsevier Science Ltd, 2011)
In this study, total metal (Al, Fe, Mn and Cu) and PAHs analyses have been done in the surface sediments. Sediment samples have been collected from seven parts of the Marmara Sea and the coast of Istanbul during 2009. Total ...
CFD modelling and experimental validation of cell performance in a 3-D planar SOFC
(Pergamon-Elsevier Science Ltd, 2019)
Fuel cells can be used to provide power for most electrical or electronic devices designed for operation from batteries or from conventional utility power sources. In this study, a three dimensional Computational Fluid ...
Late magmatic - hydrothermal tourmaline occurrences within leucogranites in NW Anatolia (Turkey): Mineral chemistry and genetic implications
(Elsevier Gmbh, 2021)
Numerous Oligo-Miocene plutonic and associated aplite-pegmatite rocks occur in the Western Anatolian Magmatic Complex. However, only the plutons of Namazgah, Karadag, Sogucak and Karadoru, in the Biga Peninsula, host three ...
A comparative analysis study of alternative energy sources for automobiles
(Pergamon-Elsevier Science Ltd, 2015)
Depletion of oil resources and some environmental factors have been pushing automobile makers and the scientific communities to study on the use of alternative energy sources in automobiles. In this respect, some energy ...
Characterizations of special time-like curves in Lorentzian plane L-2
(World Scientific Publ Co Pte Ltd, 2017)
In this paper, we first obtain the differential equation characterizing position vector of time-like curve in Lorentzian plane L-2. Then we study the special curves such as Smarandache curves, circular indicatrices, and ...