The goal of this study is developing custom designed optical tweezer which uses two
He-Ne lasers (λ=632.8 nm) parallel to each other to trap yeast cells. The
characteristic specs of this optical tweezer determined by Brownian Motion of
polystyrene beads in water. Stiffness and trapping forces of optical tweezer
calculated for laser 1, laser 2 and when both lasers used simultaneously. Laser 2 can
trap and move particle to laser 1 and multiple particles can be trapped by the laser 1.
After determination of specs of optical tweezer, yeast cells in yogurt culture medium
were trapped by lase ...Daha fazlası
3D (Dimensional) microtissues are commonly used in regenerative medicine, medicine design, toxicology studies and advance cancer research. Microtissues which are constructed by this technique mimic natural in vivo condition and it stands for shifting form between in vitro studies and in vivo research. Scaffold-free microtissues produce own extracellular matrix and cells proliferate faster. However microtissue is used in vitro experiments, they mimic in vivo condition by producing own matrix.
Recently, RGD peptides which are commonly used biomaterials consist of GRGDS sequences and it has acti ...Daha fazlası
In this work, the effect of temperature on the pressure loss of Newtonian fluid in a fully eccentric annulus with pipe rotation is investigated. For this purpose, initially comprehensive experimental study has been conducted at Izmir Katip Celebi University (IKCU), Fluid Mechanics and Hydraulics Laboratory of Civil Engineering Department. Effect of temperature has been observed for flow velocities from 0.7 m/s to 3.4 m/s, for pipe rotations from 0 rpm to 120 rpm, and for temperatures is from 20 °C to 65 °C. The pressure loss within the test section is recorded. An increase in the liquid temper ...Daha fazlası
Kullanım dışı kalmış olan elektrikli ve elektronik ürünlerin oluşturduğu e-atıklar,
dünyada olduğu kadar ülkemizde de en zorlu ve en önemli atık yönetimi
başlıklarından biri olarak öne çıkmaktadır. Bu tez çalışmasında; e-atıkların geri
dönüşümü hakkında dünyada ve Türkiye’de yapılan çalışmalar, dönüşüm
faaliyetlerinde ilk günden başlayarak günümüze kadar yaşanan gelişmeler ve
e-atıkların çevre ve insan sağlığına verdiği zararlar anlatılmıştır.
Tez çalışması kapsamında, çevre ve insan sağlığını tehdit eden e-atıkların olumsuz
etkilerinden korunmak için e-atık dönüşüm faaliyetlerinin önem ...Daha fazlası
ÖZETBu tez çalışmasında, termo-oksidatif ve termal-yağ yaşlandırmanın, düşük hızlı düşey darbenin, sıcaklığın ve termal çevrim sebebiyle oluşan termal yorulmanın farklı karakteristik özelliklerdeki epoksi bazlı yapıştırıcılar ile tek bindirmeli olarak yapıştırılmış [0/90]8s oryantasyona sahip cam fiber/epoksi kompozit malzemelerin mekanik, termal ve iç yapısal özelliklerine olan etkileri araştırılmıştır.ABSTRACTIn this thesis, influence of thermo-oxidative and thermal-oil ageing, low-velocity drop impact, high or low operating temperatures, thermal fatigue caused by thermal cycling on mechanic ...Daha fazlası
ABSTRACTThis thesis includes design, implementation and polymer nanocomposite mixing application of chaotic system based robust delta robot. Blending fluids is a vital process while preparing coating materials. The most commonly used the coating materials are polymeric materials which need to be blended in non-Newtonian fluids. This process is very critical and harder to achieve a perfectly prepared coating material.To achieve superior blending performance, two different and independent chaotic systems were used to chaotify delta robot-based blender system. One of them was used for chaotificat ...Daha fazlası
ABSTRACTIn this thesis, there are five main objectives: (i) To calculate stress and strain components based on CLPT for only composite (Type IV and Type V) and aluminum-composite (Type III) pressure vessels (ii) To determine the burst pressure based on Classical Laminated Plate Theory and first ply failure theories for the cylindrical part of the Type III and Type V composite pressure vessels (iii) to compare the analytically calculated burst pressure values with the experimental and Finite Element Methods results in the literature (iv) to propose optimum stacking sequences designs for Type II ...Daha fazlası
Graphene, a one-atom-thick two-dimensional material, has drawn great interest for many electronic and optoelectronic applications due to its extraordinary properties. The properties of the graphene can be modified with different chemical methods and introduced new properties, which widens its potential for applications. The non-covalent modification of graphene is one of the basic techniques for modifying the electrical properties of graphene without disrupting the structure.
In this thesis, the high-quality graphene has been synthesized and electrical properties of graphene have been tuned b ...Daha fazlası
6698 sayılı Kişisel Verilerin Korunması Kanunu kapsamında yükümlülüklerimiz ve çerez politikamız hakkında bilgi sahibi olmak için alttaki bağlantıyı kullanabilirsiniz.