Başlık için listeleme

Thermal performance assessment of internal longitudinal fins with sinusoidal lateral surfaces in parabolic trough receiver tubes

Kursun, Burak (PERGAMON-ELSEVIER SCIENCE LTD, 2019)

In this study, the effect of the internal longitudinal fins with the flat and sinusoidal lateral surface on the thermal performance of the parabolic trough receiver tube was investigated. Nusselt number (Nu), friction ...

Thermal stratification enhancement in cylindrical and rectangular hot water tanks with truncated cone and pyramid shaped insulation geometry

Kursun, Burak (PERGAMON-ELSEVIER SCIENCE LTD, 2018)

Thermal stratification enhancement in hot water tanks improves the efficiency of solar water heating systems by providing the increase in utilization of the solar energy. In the present study, it was aimed to increase ...

Thermal, optical and electrical properties of UV-curing screen-printed glass substrates

Cigil, Asli Beyler; Kandirmaz, Emine Arman; Birtane, Hatice; Kahraman, Memet Vezir (SPRINGER, 2019)

In this study, the hydroxyl functionality of the polyaniline surface was obtained using hydroxyethyl methacrylate and acrylated with isocyanatoethyl methacrylate. Coating formulation being curable with UV was designed by ...

Thermo-economic assessment of a thermally integrated pumped thermal energy storage (TI-PTES) system combined with an absorption refrigeration cycle driven by low-grade heat source

Okten, Korhan; Kursun, Burak (Elsevier, 2022)

The pumped thermal energy storage system (PTES), which offers cheaper storage of electrical energy, has been a widely discussed issue in the literature recently. Unlike the literature studies, in this study, an absorption ...

Thermodynamic analysis of a Rankine cycle coupled with a concentrated photovoltaic thermal system for hydrogen production by a proton exchange membrane electrolyzer plant

Kurşun B.; Ökten K. (Elsevier Ltd, 2019)

Concentrated photovoltaic thermal systems (CPV/T) have an important place among solar energy systems because of converting solar energy directly into electrical energy and utilizing waste heat of photovoltaic modules. In ...

Thermodynamic Analysis of Kalina Cycle with TI-PTES System

Ökten K.; Natesan K.; Biyikoğlu A. (American Institute of Physics Inc., 2022)

The fact that the energy produced by renewable sources cannot be consumed instantaneously has brought energy storage systems to the fore. Due to its low cost and ease of use, the thermally integrated pumped thermal energy ...

'They are asking me why I am speaking Gagauz': family language practices and the level of linguistic (in)security of adolescents speaking an endangered language

Dagdeviren-Kirmizi, Gulin; Inan, Kayhan (Routledge Journals, Taylor & Francis Ltd, 2022)

In this study, the relationship between the family language practice and the level of linguistic (in)security of adolescent Gagauz speakers is examined in the context of an endangered language. To this end, a language-use ...

ThinPrep sıvı bazlı sitoloji yöntemiyle hazırlanan servikal smear materyallerinin değerlendirilmesi, sito-histopatolojik korelasyon

Demir, Hale (2022)

Amaç: Bu çalışma; servikal sitoloji (SS) materyallerinde kalite açısından yeterlilik oranını, değerlendirme için yetersiz olanların nedenlerini, epitelyal hücre anormalliği (EHA) saptama yüzdesini, atipik skuamöz hücreler/ ...

Thio/carbohydrazone derivatives from iso(thio)/cyanates: preparation, structure elucidation, DFT studies, antimicrobial activity and DNA interactions

Cavus, Muhammet Serdar; Yakan, Hasan; Baskan, Ceren; Erdogan, Musa; Muglu, Halit (Springer, 2023)

New thio/carbohydrazone derivatives (1-10) have been synthesized from various iso(thio)/cyanates. The chemical structures of synthesized compounds were elucidated with UV-Vis, IR, H-1 NMR, C-13 NMR spectroscopic methods, ...

A THOUGHT EXPERIMENT ON GRAVITY BASED ON FALLING OBJECTS: INVESTIGATION OF SCIENCE TEACHERS' THINKING PROCESS

Uyar, Fatma Kubra; Karamustafao, Orhan (Model Inst Education & Research, 2023)

This study aims to analyse the thought processes of science teachers who are master students in scientific education using a thought experiment on gravity based on falling objects. The phenomenological study approach, one ...

Three new iridoids from the aerial parts of Nepeta teucriifolia Willd. and antiproliferative activities of extracts

Eser, Ferda; Altun, Muhammed; Demirtas, Ibrahim; Behcet, Lutfi; Aktas, Ebru (Taylor & Francis Ltd, 2023)

The aerial parts of Nepeta teucriifolia Willd. were extracted with the solvents of different polarities. The antiproliferative activities of the extracts were evaluated against rat brain tumor (C6) and human cervix carcinoma ...

Three-dimensional finite element model of friction drilling process in hot forming processes

Bilgin, Mehmet Burak; Gok, Kadir; Gok, Arif (SAGE PUBLICATIONS LTD, 2017)

Friction drilling processes are used commonly in hot forming operations. This process is similar to drilling processes but without using chip. This process is used especially for joining thin-walled metal components. In ...

Three-dimensional finite element model of the drilling process used for fixation of Salter-Harris type-3 fractures by using a K-wire

Gok, A.; Gok, K.; Bilgin, M. B. (COPERNICUS GESELLSCHAFT MBH, 2015)

In this study, the drilling process was performed with Kirschner wire (K-wire) for stabilization after reduction of Salter-Harris (SH) type-3 epiphyseal fractures of distal femur. The study was investigated both experimentally ...