Filtreler
Filtreler
Bulunan: 31 Adet 0.002 sn
Yayın Tarihi : 2019 ✕Yayın Tarihi : 2019 ✕Yayıncı : Graduate School of N ... ✕
Koleksiyon [2]
Ambargo Durumu [1]
Tam Metin [1]
Eser Sahibi [20]
Tür [2]
Yayın Tarihi [1]
Yayıncı [1]
Kayıt Giriş Tarihi [7]
Tez Danışmanı [20]
Yayın Dili [1]
Konu Başlıkları [20]
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 10 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 9 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 12 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 19 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 6 Görüntülenme
Erişime Açık

Tattoo dye removal using cold athmospheric plasma (CAP) Soğuk atmosferik plazma (SAP) kullanarak dövme boyası silme

ELİF ÇUKUR

ABSTRACTTattoo has been used as a method of self-expression of mankind since ancient times. The tattoo removal process with primitive methods is based on the process of peeling the skin layer on which the tattoo is placed. Besides being used today, laser is preferred by more people. The tattoo removal with laser is based on disintegration into smaller pieces by breaking the target tattoo pigment by absorbing the transmitted beam. It is then transferred to the nearest lymph node or disintegrated by the macrophages by means of blood or lymph circulation. The most common difficulty with laser tat ...Daha fazlası

Yüksek Lisans 2019 UTKU KÜRŞAT ERCAN Graduate School of Natural and Applied Sciences 10 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 24 Görüntülenme
Erişime Açık

Design of arduino shield to record real-time electrocardiography signals Elektrokardiyografi sinyallerinin gerçek zamanlı kaydı için elektronik filtreli ardunio eklentisi tasarımı

Çağatay, Onur Doğanay

ABSTRACTIn this thesis, an Arduino extension board (shield) is designed to take theelectrocardiography (ECG) signals. Firstly, the positive and negative terminals of an ECG signal are selected to determine which input pins are connected to these terminals. User can select one of eight possible inputs for each terminal, which means the user can apply one of the possible 64 channel combinations to inputs of the design. Then a dedicated instrumental amplifier amplifies the signal. The voltagegain of the amplifier can be selectable among available options. The amplified ECG signal is filtered in a ...Daha fazlası

Yüksek Lisans 2019 Yalçın İşler Graduate School of Natural and Applied Sciences 45 Görüntülenme
Erişime Açık

Compact rectenna design for RF energy harvesting applications RF enerji hasatlama uygulamaları için kompakt doğrultuculu anten (rectenna) tasarımı

Göçen, Cem

ABSTRACTIn this study, a detailed literature study has been conducted about radio frequency energy harvesting systems, and two different RF energy harvesting system designs are presented operated two different bands. RF energy harvesting systems have been in our lives for more than fifty years. The number of studies carried out on these systems has increased, especially to meet the power requirements of low power consumption devices whose usage is growing with the developing technology in recent years. In the literature, RF energy harvesting systems have been generally designed to operate in t ...Daha fazlası

Yüksek Lisans 2019 Merih Palandöken Graduate School of Natural and Applied Sciences 14 Görüntülenme
Erişime Açık

Simulations of a novel low pressure compression system for variable-speed micro turbofan Değişken hızlı mikro turbofan için özgün bir düşük basınç kompresör sisteminin simulasyonları

Gürbüz, Muhammet Tayyip

ABSTRACTUnmanned Aerial Vehicles (UAVs) are commonly propeller-driven and intended towards low-speed applications. The challenges on the field demand cost-efficient, high-speed and longer range applications of micro-scaled jet engines which can be applied both ‘loiter’ and ‘fly-fast’ modes. The micro-turbojet applications on the field have shorter ranges because of higher rates of fuel consumption. On the other hand, turbofan engines instead of turbojets are limited due to the price and complexity problems in micro-scales. In order to cope with this problem and meet the demand on the field, an ...Daha fazlası

Yüksek Lisans 2019 Sercan Acarer Graduate School of Natural and Applied Sciences 11 Görüntülenme
Erişime Açık

Antimicrobial effect of cold atmospheric plasma to pegdma hydrogel with cell encapsulation tests Soğuk atmosferik plazma ile pegdma hidrojeline antimikrobiyal etki kazandırılması ve hücre çalışmalarının yapılması

Yıldırım, Çağla

ABSTRACTSterilization techniques that are used for polymer based 3D scaffolds are uneffective and changes polymer chemical and mechanical properties. Cold atmospheric plasma is well-known antimicrobial agent that is the fourth state of matter. In this study, antimicrobial effect, cold atmospheric plasma effects on cell viability and polymer structure were investigated as an alternative method for sterilization techniques used in polymer sterilization. Firstly, the antimicrobial effect of cold atmospheric plasma on both bacteria E. coli and S. aureus was determined. Two different antimicrobial ...Daha fazlası

Yüksek Lisans 2019 Thesis Utku Kürşat Ercan Graduate School of Natural and Applied Sciences 18 Görüntülenme
Erişime Açık

Detection of underground power cable route using shortest path algorithms En kısa yol algoritmaları kullanarak yeraltı güç kablosu güzergâhının belirlenmesi

Yıldız, Baran

xx, 44 sayfa: şekil, harita 29 cm. 1 CD

Yüksek Lisans 2019 Osman Sami Kırtıloğlu Graduate School of Natural and Applied Sciences 3 Görüntülenme
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