Güncel Gönderiler: Araştırma Çıktıları | TR-Dizin | WoS | Scopus | PubMed
Toplam kayıt 900, listelenen: 681-700
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Direct and fast growth of GaAs thin films on glass and polyethylene terephthalate substrates using a thermionic vacuum arc
(Springer New York LLC, 2015)Using a thermionic vacuum arc, single?crystal gallium arsenide (GaAs) layers of micron thickness were grown on PET and glass substrates in 2 min. We present a new deposition mechanism and parameters for GaAs thin films ... -
Optimum design of composite steel frames with semi-rigid connections and column bases via genetic algorithm
(Techno Press, 2015)A genetic algorithm-based minimum weight design method is presented for steel frames containing composite beams, semi-rigid connections and column bases. Genetic Algorithms carry out optimum steel frames by selecting ... -
Building parameter analysis with S-UTD-CH model in multiple diffraction [Çoklu Kirinimlarda EKDZ Modeliyle Bina Parametrelerinin De?işiminin Analizi]
(Institute of Electrical and Electronics Engineers Inc., 2015)Electromagnetic wave propagation models are used in radio planning tool and coverage prediction. These models are based on ray tracing technique or numerical. Slope UTD with convex hull model is a model which has less ... -
Optimum design of steel frames with semi-rigid connections and composite beams
(Techno Press, 2015)In this paper, an optimization process using Genetic Algorithm (GA) that mimics biological processes is presented for optimum design of planar frames with semi-rigid connections by selecting suitable standard sections from ... -
Optimum design of steel space frames with composite beams using genetic algorithm
(Techno Press, 2015)This paper presents an optimization process using Genetic Algorithm (GA) for minimum weight by selecting suitable standard sections from a specified list taken from American Institute of Steel Construction (AISC). The ... -
Analysis of technological pedagogical content knowledge studies in Turkey: A meta-synthesis study
(Turkish Education Association, 2015)The purpose of this research is to analyze the Technological Pedagogical Content Knowledge (TPACK) studies in Turkey by using meta-synthesis method and to present the type of tendency in this field. In the research, a total ... -
Thermoeconomic analyses of steam injected gas turbine cogeneration cycles
(Polish Academy of Sciences, 2015)In this study, three different gas turbine cogeneration systems that are preheating air, preheating air-fuel and simple cycles where steam injected in to combustion chamber are analyzed. The effects of steam injection on ... -
Writing and its use as a learning tool from teachers’ perspective: Instrument development and a pilot implementation [Öğretmen Perspektifinden Yazma ve Yazmanın Öğrenme Amaçlı Kullanımı: Ölçme Envanteri Geliştirme ve Pilot Uygulama]
(Ankara University, 2015)The aim of this study is to develop a measurement instrument to investigate science teachers’ perceptions toward writing and the use of writing as learning strategies in their learning environments. Aligned with the focus ... -
The effect of concept cartoons to academic achievement in instruction on the topics of divisibility
(Gokkusagi LTD. STI., 2015)The purpose of this study was compared to the effect of academic achievement of concept cartoons and activity based instruction in instruction on the topics of divisibility rules and prime number. The matching- only design, ... -
The effect of self-construal on statue and role-relaxed consumption
(Mediterranean Center of Social and Educational Research, 2015)Consumer behavior researches indicate that individuals prefer the products which are compatible with themselves. For instance, individuals with highly independent-self take into account the functional benefits whereas ... -
Application of of ray tracing technique into S-UTD-CH model [Işin Izleme Tekni?inin EKDZ Modelinde Kullanilmasi]
(Institute of Electrical and Electronics Engineers Inc., 2015)To make higher accuracy predictions having less computation complexity, lower computation time, a lot of electromagnetic wave propagation models are developed. These models are classified into two classes, ray tracing based ... -
A new frost salt scaling mechanism for concrete pavements based on brine rejection from ice layer adhered to concrete surface
(Taylor and Francis Ltd., 2015)In cold regions, highways, airfields or sidewalks are exposed to de-icing agents to thaw the ice layer on pavement surface. In this situation, a progressive surface damage that pulls off flaky chips from concrete pavement ... -
MAC protocols for energy harvesting wireless sensor networks: Survey
(ETRI, 2015)Energy harvesting (EH) technology in the field of wireless sensor networks (WSNs) is gaining increasing popularity through removing the burden of having to replace/recharge depleted energy sources by energy harvester ... -
Investigation of an alternative fuel for diesel engines
(Polish Academy of Sciences, 2015)Internal combustion engines use generally fossil fuel products. World resources of it is limited. Renewable alternative energy sources are getting important solution for energy demand. Hazelnut oil ethyl ester is obtained ... -
The investigation of the effects of frayer model on vocabulary knowledge in social studies [Sosyal bilgilerde kelime hazinesinin geliştirilmesinde frayer modelinin etkisinin ıncelenmesi]
(Ankara University, 2015)The purpose of the present study is to determine the effects of Frayer model on the development of vocabulary knowledge in social studies. A quasi-experimental nonequivalent control group design was used in the study. For ... -
Primary school teacher candidates’ metaphorical perceptions related to multigrade classes concept [Sınıf öğretmeni adaylarının birleştirilmiş sınıf kavramına ilişkin metaforik algıları]
(Ankara University, 2015)The purpose of the present study was to determine the teacher candidates’ perceptions related to ‘multigrade classes’ concept through metaphors. The study was conducted with the students who studied at their fourth (final) ... -
Some new records and one new species of the genus Lebertia Neuman (Acari: Hydrachnidia: Lebertiidae) from Turkey
(Turkiye Klinikleri Journal of Medical Sciences, 2015)In this study, water mites of the genus Lebertia Neuman, 1880 (Acari: Hydrachnidia) collected from Antalya, Artvin, Bingöl, Erzurum, Kahramanmaras, and Siirt provinces of Turkey are presented. In total, 12 species were ... -
Measuring attention in second language reading using Eye-tracking: The case of the noticing hypothesis
(International Group for Eye Movement Research, 2015)Taking Schmidt's (1990) noticing hypothesis as point of departure this study aims to measure attention and learning gains during second language (L2) reading by making use of eye-tracking methodology. Relying on Robinson's ... -
New data on the genus Axonopsis Piersig, 1893 (Acari: Hydrachnidia, Aturidae) in Turkey
(Bulgarian Academy of Sciences, 2015)New records of the water mites of the genus Axonopsis Piersig, 1893 (Acari: Hydrachnidia, Aturidae) from Siirt Province, Turkey, are presented in this paper. Two subgenera and three species are newly recorded to the Turkish ... -
The views of mathematics teachers on the factors affecting the integration of technology in mathematics courses
(Social Science Press, 2015)The aim of this study was to determine the views of mathematics teachers on the factors that affect the integration of technology in mathematic courses. It is a qualitative case study. The sample size of the study is 10 ...