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Bulunan: 19 Adet 0.000 sn
Ambargo Durumu : Erişime Açık ✕Konu Başlıkları : Fen bilimleri ✕Konu Başlıkları : Fen bilimleri ✕Yayıncı : Graduate School of N ... ✕Koleksiyon : FEN BİLİMLERİ ENSTİT ... ✕Tam Metin : var ✕
Koleksiyon [2]
Ambargo Durumu [1]
Tam Metin [1]
Eser Sahibi [19]
Tür [2]
Yayın Tarihi [2]
Yayıncı [1]
Kayıt Giriş Tarihi [6]
Tez Danışmanı [18]
Yayın Dili [1]
Konu Başlıkları [20]
Erişime Açık

Investigation of changes in the formation and types of non-metallic inclusions in the steel production process Çelik üretim sürecinde oluşan metal olmayan kalıntıların oluşumu ve değişimlerinin incelenmesi

Bakar, İbrahim

ABSTRACTIt is not possible to produce steel without inclusions as the process for steel production requires. Based on this fact, the researches on clean steel are concentrated on the reduction of inclusions and transformation of inclusions into harmless state by modification. The definition of steel cleanness is related to final product application. Non-metallic inclusion, in the liquid steel, causing many problems and production lost in steel production process and final application. Aluminum killed steels mostly contain Al2O3 and MnS inclusions. Al2O3 inclusions are formed during de-oxidatio ...Daha fazlası

Yüksek Lisans 2018 Hüsnügül Yılmaz Atay Graduate School of Natural and Applied Sciences 7 Görüntülenme
Erişime Açık

Growth of zno-ch nanostructures on ito/glass substrates through electrochemical anodization for biosensor applications Biyosensör uygulamaları için elektrokimyasal anotlama yöntemiyle İto/Cam yüzey üzerinde Zno-Kitosan nanoyapıların büyütülmesi

Uzunbayır, Berkant

ABSTRACTIn recent years, the utilization of nanotechnology rapidly developed for the wide range of sciences. Nanomaterials shows unique properties and ZnO nanostructures are the most suitable structures for biosensor applications due to their high surface area and high electrochemical activity. In this project first, we have coated zinc film on to Glass/ITO surface by electrochemical deposition method. Then we have transformed the obtained zinc film to nanostructured ZnO by electrochemical anodization method. At the end, we have tried to modify the ZnO nanostructured surface with chitosan for ...Daha fazlası

Yüksek Lisans 2019 Ahmet Aykaç Graduate School of Natural and Applied Sciences 10 Görüntülenme
Erişime Açık

Biomechanics of acetabular fractures with low energy trauma via finite element modeling and analysis Düşük enerji travmalı acetabular kırıklarının sonlu elemanlar modeli ve analizi

SAMET ÇIKLAÇANDIR

The skeletal system undertakes many tasks such as the movement of the body, mineral storage, and protection of soft tissues. Damage to this structure affects human life negatively. Fractures that occur in the human body is damage to mainly to the bone structure and associated surrounding tissues. Therefore, it is necessary to understand how the fractures are formed and the fracture mechanism. Furthermore, the mechanism of fracture is complicated and worthy of investigation. However, the examination of the bone is difficult because it is a structure covered with tissues like veins and muscles. ...Daha fazlası

Yüksek Lisans 2019 YALÇIN İŞLER Graduate School of Natural and Applied Sciences 22 Görüntülenme
Erişime Açık

Investigation of the cooling system efficiency in aluminum low pressure die casting Alüminyum alçak basınçlı dökümde kullanılan soğutma sisteminin veriminin araştırılması

Yavuz, Hakan

ABSTRACTIn this thesis, the flow rate of air coolers used in low pressure casting method is examined. Low pressure die casting (LPDC) method is used for many types of products. Light alloy wheels, motor housings and pistons are examples of these products. Air-cooling is used to provide directional solidification to avoid casting defects on the casting part. In this study, the flow rate of air-cooling is calculated by using computational fluid dynamics (CFD) methods. After the numerical calculations were confirmed by experimental methods, the affect of the variables on the cooling system flow r ...Daha fazlası

Yüksek Lisans 2019 Onur Ertuğrul Graduate School of Natural and Applied Sciences 25 Görüntülenme
Erişime Açık

Effect of geometrical parameters on nanofluid based natural circulation loop performance Geometrik parametrelerin nanoakışkanlı doğal taşınım döngüsü performansına etkisi

Alaboud, Mohmmad

xx, 42 sayfa: resim 29 cm. 1 CD

Yüksek Lisans 2019 Ziya Haktan Karadeniz Graduate School of Natural and Applied Sciences 12 Görüntülenme
Erişime Açık

Development of cast aluminum metal matrix composites by additional processes Döküm alüminyum metal matriks kompozitlerinin ilave proseslerle geliştirilmesi

Aybarç, Uğur

ABSTRACTIt is seen that materials used traditionally today are insufficient to meet market expectations. For this reason, the interest on composite material increases day by day. The role of composite materials has become important in sectors, such as especially in automotive and aerospace industries, where a final product weight is of importance.This thesis consists of four application parts. In the first part, a detailed literature review on aluminum metal matrix composites was discussed. In the second part, the appropriate stirring method was searched for the production of aluminum metal ma ...Daha fazlası

Doktora Tezi 2019 Mehmet Özgür Seydibeyoğlu Graduate School of Natural and Applied Sciences 33 Görüntülenme
Erişime Açık

The effect of antibacterial photodynamic therapy on healthy fibroblast and keratinocyte cells Antibakteriyel fotodinamik terapinin sağlıklı fibroblast ve keratinosit hücreleri üzerindeki etkisi

GÜLCE KADIKÖYLÜ

ABSTRACTAntibacterial photodynamic therapy is a treatment that occurs in the presence of light, photosensitizer and oxygen. The photosensitizer reacts with the molecular oxygen in the environment when it is stimulated by light at the appropriate wavelength, causing reactive oxygen species at the end. Reactive oxygen species show high cytotoxic effects on cells and cause necrosis or apoptosis. In recent years, the resistance of bacteria to antibiotics has caused infection treatments to become more difficult. This situation has become a threat to human and animal health. Therefore, antibacterial ...Daha fazlası

Yüksek Lisans 2019 NERMİN TOPALOĞLU AVŞAR Graduate School of Natural and Applied Sciences 17 Görüntülenme
Erişime Açık

Development of novel donor and acceptor sam molecules for photovoltaic applications Fotovoltaik uygulamalar için yeni nesil donör ve akseptör kendiliğinden organize tek katman moleküllerin geliştirilmesi

Arkan, Emre

ABSTRACTSurface modification of indium tin oxide (ITO) is a crucial factor to alter the energy level barrier between ITO and perovskite that has direct influence on the charge extraction and recombination at interface. This henomenon has further direct effect on device parameters such as open circuit voltage (VOC), fill factor (FF), and short circuit current density (JSC). This study was base on the synthesis of six novel SAM molecules to be used in fabrication of p-i-n type perovskite solar cells. Since proposed SAMs are of push-pull type molecular nature, contiguous thiophene rings were used ...Daha fazlası

Doktora Tezi 2019 Şerafettin Demiç Graduate School of Natural and Applied Sciences 13 Görüntülenme
Erişime Açık

Design and robot operating system based control of a modular robot manipulator Modüler robot manipülatör tasarımı ve robot işletim sistemi tabanlı kontrolü

Kahveci, Aytaç

ABSTRACTIn this thesis, a new design of the modular robot manipulator and its control with Robot Operating System is presented. The modules are designed to have an adjustable twist angle, which enables to create different robot manipulator configurations. Kinematic synthesis on the gripper module is conducted and structural parameters of the gripper is determined. Axis sets on the modules are determined by Denavit-Hartenberg method. Inverse and forward kinematic analysis and singularity analysis are performed. Numerical inverse kinematic solver is proposed for modular robot manipulators with m ...Daha fazlası

Yüksek Lisans 2019 Erkin Gezgin Graduate School of Natural and Applied Sciences 77 Görüntülenme
Erişime Açık

Carbon based heating elements and their practical applications Karbon bazlı ısıtma elemanları ve pratik uygulamaları

Yavaş, Ahmet

ABSTRACTCarbonaceous materials have attracted a tremendous amount of attention during the last decades due to their outstanding properties for a variety of applications. Among them, carbon fibers are state of the art materials with excellent physical, mechanical, electrical, thermal and chemical properties. Especially the thermal and electrical properties of carbon fibers combined with other prominent characteristics enable them to be employed as an effective heating element. Regarding to this motivation, in this study, it is mainly aimed to fabricate carbon fiber based heating elements and to ...Daha fazlası

Yüksek Lisans 2019 Mustafa Erol Graduate School of Natural and Applied Sciences 23 Görüntülenme
Erişime Açık

Preparation and characterization of carbon-based nanofluids Karbon bazlı nanoakışkanların hazırlanması ve karakterizasyonu

Fidan-Aslan, Tuğçe

ABSTRACTNanofluids are produced by the addition of nano-sized particles to the base fluid in order to increase the thermal conductivity of heat transfer fluids. Preparation of stable nanofluids with high thermal conductivity is a very complex process and their usage in heat transfer applications are related to many important parameters from the stability of nanofluids to their viscosity. Optimization of these parameters is essential for the practical use of nanofluids. The objectives of this study are to successfully preparecarbon-based nanofluids while investigating the stability mechanisms a ...Daha fazlası

Yüksek Lisans 2019 Elif Alyamaç Seydibeyoğlu Graduate School of Natural and Applied Sciences 30 Görüntülenme
Erişime Açık

Urban regeneration contexts in historical cıty centers: Izmir, Kemeraltı case Tarihi kent merkezlerinde kentsel dönüşüm boyutları: Kemeraltı örneği

Yakıcı, Nilay

ABSTRACTCities that have a history as a capital or an important trade center, has its own complex structure. If the historical city center was functionalized as a commercial district, it has been experienced social, cultural, environmental and economical subjects throughout centuries. This situation creates strong impacts as newly created contexts likewise political, public and architectural. These contexts generally not thought together, but they should be analyzed and investigated together for a sustainable future for the historical city centers. As a historical city center, Kemeralti-Izmir ...Daha fazlası

Yüksek Lisans 2018 Özgün Yücel Graduate School of Natural and Applied Sciences 12 Görüntülenme
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