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Yayın Tarihi : 2022 ✕Yayın Dili : eng ✕Tür : Yüksek Lisans ✕Tür : Yüksek Lisans ✕Tür : Yüksek Lisans ✕Yayıncı : Graduate School of N ... ✕
Koleksiyon [2]
Ambargo Durumu [1]
Tam Metin [1]
Eser Sahibi [20]
Tür [1]
Yayın Tarihi [1]
Yayıncı [1]
Kayıt Giriş Tarihi [2]
Tez Danışmanı [19]
Yayın Dili [1]
Konu Başlıkları [20]
Erişime Açık

Exhaust thermal energy recuperation in small gas turbine and turbojet engines Küçük gaz türbini ve turbojet motorlarında egzoz termal enerji geri kazanımı

Hakyemez Çatiner, Deniz

ÖZETHer geçen gün artan hava kirliliği ile önem kazanan karbondioksit emisyonunun azaltılmasına yönelik çalışmalar her alanda devam etmektedir. Elektrik üretimi, taşımacılık gibi hava kirliliğinin büyük kısmını oluşturan alanlarda gaz türbini kullanımı yaygındır. Gelişime açık bu motorlar ile verimi arttırmak ve yakıt tasarrufu sağlamak amacıyla çalışılan yöntemlerden biri olan reküperatör tasarımı bu tezin konusudur. Yer ve hava olmak üzere iki farklı mikro gas türbin motoru için borulu ısı değiştirici basınç kaybı ve sıcaklık artışı dikkate alınarak modellenmiştir. Hava tipi motorlarda alan ...Daha fazlası

Yüksek Lisans 2022 Sercan Acarer Graduate School of Natural and Applied Sciences 20 Görüntülenme
Erişime Açık

The design, manufacturing and applications of a novel led-based phototherapy device Yeni Bir LED tabanlı fototerapi cihazının tasarımı, üretimi ve uygulamaları

Yaşar, Büşra

ABSTRACTJaundice is a very common disease in infants. It is caused by an increase in the level of bilirubin in the blood. Its incidence in newborns is around 60-70. When jaundice becomes pathological, it can cause much damage to the body: brain damage, vision loss, lung and kidney dysfunction, and even death. With the increase of bilirubin and its accumulation in the organs, irreversible damage occurs. There are different methods such as exchange transfusion, medication, and phototherapy to remove bilirubin from the environment. Blue light with a wavelength of 430-490 nm is required for light ...Daha fazlası

Yüksek Lisans 2022 Nermin Topaloğlu Avşar Graduate School of Natural and Applied Sciences 13 Görüntülenme
Erişime Açık

Optimizing the load carrying performance of the hydraulic guiding elements with finite elements method

Tanyeri, Cem

ÖZETHidrolik ve pnömatik sistemlerin uzun süreli sorunsuz çalışmasında önemli bir etkiye sahip olan kılavuz elemanlar, hidrolik ve pnömatik silindirlerde eksene dik olan kuvvetlere direnerek metal-metal temasını önlemek için kullanılır. Kılavuz elemanlarda en sık kullanılan malzemelerden biri olan kompozit malzemelerde, fiber yönelimleri ve takviye malzeme oranları gibi farklı parametreler, ürünün kalitesini ve mukavemetini büyük ölçüde etkiler. Bu çalışmada, kompozit kılavuz elemanların sonlu elemanlar yöntemi kullanılarak malzemeden ürüne geçiş aşamalarının ve Digimat, Moldex3D ve MSC Marc p ...Daha fazlası

Yüksek Lisans 2022 Özgür Seydibeyoğlu Graduate School of Natural and Applied Sciences 13 Görüntülenme
Erişime Açık

Simulation of three-dimensional slender droplet motion with adaptive mesh refinement Uyarlanabilir ağ yapısı ile üç boyutlu ince damla hareketi simülasyonu

Özdoğan, Mert

ABSTRACTWhile droplet moves over surfaces, various structures are observed cusp and corner formation, pearling, pinning/depinning, to name a few. We develop a finite element method (FEM) based solver to analyze three-dimensional motion of slender droplets over several substrates. To get accurate results within a feasible computation time, an adaptive mesh refinement (AMR) based on non-conformal, balanced and preload quadtree mesh structure is embedded within our quadratic FEM solver to focus our computational power on specific regions like contact lines. We validate our solver with the power-l ...Daha fazlası

Yüksek Lisans 2022 Umut Ceyhan Graduate School of Natural and Applied Sciences 24 Görüntülenme
Erişime Açık

Spatiotemporal analysis framework for ıdentifying emerging hot spots and energy potential from livestock manure in Turkey Türkiye’deki hayvan gübresinin yoğun olarak bulunduğu bölgelerin ve bu bölgelerin enerjipotansiyellerinin mekansal ve zamansal analizler ile belirlenmesi

Ruhbaş, Büşra Yüksel

ABSTRACTBiogas technology offers both an environmentally sustainable solution for livestock manure and generates renewable energy. Renewable energy production from livestock manure highly depends on the feedstock availability therefore, the spatial and temporal variability of livestock manure is critical for sustainable management of livestock manure via biogas plants. In this regard, this study aims to develop a replicable geographic information system-based spatiotemporal method to determineemerging hot spots and power capacities for new biogas plants and capacity expansion for the existing ...Daha fazlası

Yüksek Lisans 2022 Sedat Yalçınkaya Graduate School of Natural and Applied Sciences 17 Görüntülenme
Erişime Açık

Detection of coal fires in soma with landsat temporal thermal images Landsat temporal termal görüntüleri ile Soma'da kömür yangınlarının tespiti

Köşker, Merve

ABSTRACTCoal is one of the most important energy resources used in many countries for decades to produce energy. A type of fire called coal fires occurs when the coal surface is exposed to sunlight and in contact with oxygen for a long time in coal mine areas where coal is extracted. Coal fires are prevalent and critical incidents for most coal mining areas around the world. Various problems arise due to coal fires in coal mines. These problems affect many factors such as environment, society, economy and security directly or indirectly. Burning coal fire causes the formation of poisonous gase ...Daha fazlası

Yüksek Lisans 2022 Özşen Çorumluoğlu Graduate School of Natural and Applied Sciences 21 Görüntülenme
Erişime Açık

Production of dental filling composite material with ımproved mechanical and antibacterial properties by zno/chitosan doped silica/pmma core/shell nano hybrid structured ınorganic matrix ZnO/Kitosan katkılı silika/PMMA çekirdek/kabuk nano hibrit yapılı inorganik matris ile mekanik ve antibakteriyel özellikleri geliştirilmiş dental dolgu kompozit malzemesi üretilmesi

Ok, İzel

ABSTRACTOrganic-inorganic (hybrid) dental filling composite resins are becoming increasingly popular as a result of their aesthetic quality, good mechanical properties, optimum wear resistance, and ease of use. However, dental composites have relatively high brittleness, low strength, and durability, which limits applications. Dental filling composites containing nanoparticles have been developed in recent years to address the drawbacks of dental composites. These composites have high filling percentages and provide high strength and durability to the resin. However, the characteristics of the ...Daha fazlası

Yüksek Lisans 2022 Ahmet Aykaç Graduate School of Natural and Applied Sciences 13 Görüntülenme
Erişime Açık

The effect of fibrous dental barrier membrane on osteogenic differentiation of human mesenchymal stem cells Fibröz yapılı dental bariyer membranın insan mezenkimal kök hücrelerinin osteojenik farklılaşması üzerine etkisi

Utar, Bahar

ABSTRACTBone healing is one of the important issues in clinical areas such as oral, maxillofacial, orthopedic, and plastic surgery. Especially in the implantation process to be performed in dental applications, the structure of the jawbone and the quality of the bone density are very important for the performance of the process. In the area of tissue engineering, there are biodegradable bone implants with biocompatible synthetic polymers that give successful results in many areas. The dental barrier membrane is a synthetic bone graft based on Poly (DL-lactide). It is used in many dental applic ...Daha fazlası

Yüksek Lisans 2022 Ozan Karaman Graduate School of Natural and Applied Sciences 12 Görüntülenme
Erişime Açık

Poincaré plot-based fault detection on tennessee eastman process using various machine learning algorithms Çeşitli makine öğrenimi algoritmalarını kullanarak tennessee eastman sürecinde poincaré grafik tabanlı hata tespiti

Çancıoğlu, Emre

ABSTRACTThis thesis presents diagnose and detect faults of Tennessee Eastman Process (TEP) with machine learning algorithms via Poincaré plots-based feature extraction and statistically analysis-based feature selection. The IEEEDataPort online dataset, obtained from a big plant that contains nonlinear processes from various chemical units, is utilized in this thesis. It contains measures from 52 process points in TEP with 20 dissimilar malfunction types. In this study, raw dataset and dataset that applied feature extraction and feature selection was used. Poincaré plot was applied to the datas ...Daha fazlası

Yüksek Lisans 2022 Savaş Şahin Graduate School of Natural and Applied Sciences 18 Görüntülenme
Erişime Açık

Control of robotic systems used for support in cochlear microrobot operations Koklear mikrorobot operasyonlarında destek için kullanılan robotik sistemlerin kontrolü

Karayaman, Goncagül

ABSTRACTThe rapid development of robot technology has started to be emphasized medical robotics increasingly. The potential of robotic systems to facilitate the work of healthcare workers, minimize human errors, restore function to lost limbs, and enable operations that cannot be performed due to distance or other factors have made this field increasingly popular.Surgical robotics applications are the trend subfield of medical robotics. In these applications, it is aimed to reach the desired task with certain precision and accuracy. Therefore, performance of the control system is very crucial ...Daha fazlası

Yüksek Lisans 2022 Barış Bıdıklı Graduate School of Natural and Applied Sciences 12 Görüntülenme
Erişime Açık

A vehicle routing problem based scenario analysis for optimum siting of municipal solid waste transfer stations Belediye katı atık aktarma istasyonlarının optimum yerleşimi için araç rotalama problemine dayalı senaryo analizi

Höke, Milas Ceren

ABSTRACTThe management of public services requires an in-depth decision-making method to provide the intended functionality and service life. Municipal solid waste management is indeed one of the most challenging tasks of local municipalities and currently occupies a substantial portion of the overall municipal expenses. In this study, an entirely geographic information system (GIS) based facility siting method is developed to aid governmental bodies in the decision-making process to site such facilities. The proposed method is applied to site a transfer station (TS) in the southeastern region ...Daha fazlası

Yüksek Lisans 2022 Sedat Yalçınkaya Graduate School of Natural and Applied Sciences 10 Görüntülenme
Erişime Açık

Investigation of the adhesive-bonded aluminum-polyamide hybrid joints Yapıştırıcı ile birleştirilmiş alüminyum-poliamid hibrit bağlantıların incelenmesi

Batıkan Kandemir, Miray

ABSTRACTToday, environmentally friendly, high-strength and lightweight engineering materials are becoming increasingly important for the automotive and aviation industries. For this purpose, it is critical to combine different materials correctly and to create a reliable hybrid structure. Adhesives have a huge market share among the joining methods due to their low-stress concentration, high formulation possibility, good fatigue resistance, and sealing advantages. However, surface properties and surface treatments play an active role in determining joint performance. In this thesis, the effect ...Daha fazlası

Yüksek Lisans 2022 Özgür Seydibeyoğlu Graduate School of Natural and Applied Sciences 38 Görüntülenme
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