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Fuel cells can be considered as clean, efficient and economic devices for the next power generation. Flow configuration and operating conditions such as temperature, relative humidity and stoichiometric number are key factors for improving cell performance. …

Yenilenebilir enerji kaynaklarından güneş enerjisiyle elektrik üretimi için yaygın olarak fotovoltaik (PV) modül kullanılmaktadır. Her sistem gibi bu sistemlerin de verimli olması istenir. Bir PV modülün elektriksel verimini düşürebilen pek çok faktör bulunm…

In this study, the effect of using a mixture of butanol and diesel fuel in a small diesel engine on engine performance and exhaust emissions is modeled. A comparison has been made with artificial neural networks, which is an up-to-date method, and multiple l…

Lower limb exoskeletons are wearable robotic devices which either augment human power or facilitate a walking ability for those who lost it by injury or aging. They have been getting more and more attention in the scientific community thanks to its increasin…

Taşıtların elektrik ihtiyacı taşıtın cinsine göre her geçen gün artarak devam etmektedir. Bu ihtiyacı karşılamak taşıtlarda bulunan geleneksel elektrik üretim ve depolama yöntemi dışında egzoz ısının geri kazanımı, güneş enerjisi uygulamaları yanı sıra süspa…

Hardox çelikler mükemmel aşınma direncine sahip, ultra yüksek mukavemetli, kayma ve darbe aşınmasına karşı dayanıklı martensitik çeliklerdir. Madencilik ve inşaat mühendisliği endüstrisinde ağır makineler ana uygulama alanıdır. Bu çalışmada, Hardox 400 çeliğ…

In many engineering applications such as aerospace, automotive and telecommunications, icing leads to mechanical and socio-economic problems such as efficiency reduction, decreased power transmission, security threat, material damage and energy waste. Theref…

From the time that humans first started to live in a settled way, the effect of public places (as the common space for the people from every section of the community) on communications with their surroundings, and the need to meet the main requirements, have…

2018 yılı verilerine göre 7,6 milyarı geçen dünya nüfusu her geçen gün artmaya devam etmekte ve bu artışla birlikte insanların ihtiyaçları da her geçen gün artmaktadır. Enerji ihtiyacı ise temel gereksinimlerin başında yer almaktadır. Enerji geçmişte ve gele…

The industrial–style designs affecting today’s perception of designs in a huge velocity has emerged first by the industrial revolution. Although being time–dependent and taking longer time and economically highcost product, the handcraft has allowed the indus…

Çocuğun sosyal ve duygusal gelişiminin en kritik noktalarından biri olan arkadaşlık ilişkileri toplumsal ilişkilerine öncülük eder ve çocukların doğru davranışlarda bulunması açısından çok önemlidir. Akran zorbalığı; saldırgan pozisyonda olan bir birey ile b…

Textile industry has an important role in the economic development of Turkey. According to the Ministry of Economy, textile exports, which were about $ 6.36 billion in 2007, were about $ 10.11 billion at the end of 2017. The share of the textile sector in the …

Oscillators are one of the most important basic circuit blocks frequently used in electrical-electronics engineering applications. Among several types of the sinusoidal oscillators, quadrature oscillators are frequently used in communication circuits, control …

Asynchronous motors are the most preferred engines in the industry due to factors such as their stable speed, economic and operational safety. Recently, asynchronous motors have been used as generators in the power generation sector and especially in wind turb…

Environmental problems, also defined as destruction of ecologic balance, are among the most significant problems of today’s world. Increasing mankind pressure on environment have made destructions of ecological balance evident. Such a case then emerged a nee…

In today’s world with ever-aggravating environmental problems, environmental training has a great significance in mitigating and coping with such problems. Environmental pollution is the greatest problem today and certain measures and steps should urgently be …

Ceramic materials are characterized by outstanding hardness, extreme compressive strength and elastic modulus, wear resistance, thermal shock resistance, chemical stability and high temperature properties. Therefore they have potential materials to be use at i…

Superhydrophobic surfaces and materials received great attention of scientists and engineers due to their unwetting, self cleaning and antimicrobial properties. Hydrophobic surfaces are defined as having sessile water drop contact angle greater than 90°, while…

In our country, industrial investments and manufacturing capacity increase day by day. It is possible to enhance standard and quality of product, increase manufacturing capacity, constitute production line with less energy consumption by adapting developing te…

Jeotermal enerji varlığını dünyanın kuruluşundan bu yana sürdürmüş temiz bir enerji türüdür. Her geçen yıl yeni jeotermal alanlar bulunmakta ve kullanım alanları hızla artmaktadır. Enerji maliyetlerinin yükselme eğiliminde olduğu günümüzde jeotermal enerji alt…