In this study, the Friction Stir Spot Welding (FSSW) method was employed to join thin AA6061-T4 series aluminum sheets. The AA6061-T4 alloy used in the study has various applications, including aerospace and automotive industries. During the joining process using the FSSW method, emphasis was placed on three parameters: tool rotational speed, pin length, and pin width, considering the advantages of the aluminum alloy used. A total of 12 welding operations were performed with different parameter combinations. The obtained specimens were examined for their mechanical properties, temperature meas ...Daha fazlası
Hand gesture-based systems are one of the most effective technological advances. Surface electromyography (sEMG) is utilized as a popular input data for gesture classification with elevated accuracy and advanced control capability. In this thesis, which is based on the classification performance of Hilbert-Huang spectrum (HHS) images obtained from Hilbert Huang Transform (HHT) of the sEMG of the gestures, an evaluation of the results of artificial intelligence (AI) methods on hand gesture classification using HHS image is presented.
Teknolojinin ve teorik bilginin gelişmesiyle son 20 yıldır günlük hayatımızın her
alanında olduğu gibi sağlık alanında da yapay zekâ (YZ)'nın uygulanması giderek
artmaktadır. Özellikle koronavirüs (COVID-19) ve iskemik inme gibi toplum sağlığını
tehdit eden hastalıkların YZ ile tespit edilmesi sağlık çalışanların iş yüklerini
hafifleterek daha doğru tanı sağlamaktadır. Bu hastalıkların tespit edilmesinin yanında
medikal görüntü üzerinden hastalık bölgelerinin bölütlenmesi, sağlık çalışanlarına
tedavide yardımcı olabilecek bilgi sağlamaktadır. Bununla birlikte medikal görüntü
üzerinden b ...Daha fazlası
Inconel 738LC alaşımı nikel bazlı bir süperalaşımdır ve genellikle gaz türbinlerinde,
türbin nozullerinde ve türbin bıçaklarında kullanılmaktadır. Gaz türbin motoru
bileşenlerinde kullanımı yaygın olan Inconel 738LC çalışma ortam koşulları sebebi
ile yüksek sıcaklık ile birlikte yüksek korozyona da maruz kalmaktadır. Bu sebeple,
bu malzemenin yüksek sıcaklık mukavemet değeri ve yüksek sıcaklık oksidasyon
direnci büyük önem taşımaktadır.
Bu çalışmada karbon elementinin Inconel 738 alaşımında mekanik ve mikroyapısal
etkileri incelenmiştir. Oda sıcaklığında ve iki farklı yüksek sıcaklıktak ...Daha fazlası
Plasma is an ionized gas generated under an electric field that contains photons, free electrons, ions, free radicals, and reactive oxygen/nitrogen species (RONS). Cold atmospheric plasma (CAP) is generated in the cold form under a high electric field at atmospheric pressure. CAP is generated using two methods, Dielectric Barrier Discharge (DBD) and plasma jet. In the DBD method, the electrode configuration, shape, material, and substance from which the dielectric barrier is made are important. Beyond the electrode design and geometry, the barrier and electrode materials can also impact the re ...Daha fazlası
Additive manufacturing is used today in different industries to produce prototypes and even final products. Additive manufacturing offers solutions for the fabrication of complex geometries and is preferred for manufacturing parts in a wide variety of applications. The fused filament fabrication (FFF) method is the additive manufacturing method with the most users worldwide. With the developing material science, it has been possible to produce composite structures and even metal products by going beyond the production of pure polymers in the FFF method. The mechanical properties of the materia ...Daha fazlası
Additive Manufacturing (AM) is a manufacturing method that pushes the limits of imagination and eliminates the question of whether complex industrial products can be produced that cannot be obtained with traditional manufacturing methods. In this study, microstructure and mechanical properties of maraging steels produced by DMLS method and aged in different durations (6 and 9 hours) and atmospheres (Air, N2 and N2/H2) were investigated. When the SEM images were examined, it was ob-served that the molten pool boundaries did not disappear completely but became blur-red with increasing temperatur ...Daha fazlası
6698 sayılı Kişisel Verilerin Korunması Kanunu kapsamında yükümlülüklerimiz ve çerez politikamız hakkında bilgi sahibi olmak için alttaki bağlantıyı kullanabilirsiniz.