A visiual isarithmic mapping tool for online maps

Atalay, Hatice

Within the scope of the thesis study, interpolation methods used for evaluating spatially varying data and for presenting the information obtained from the data via maps were investigated. A method for generating an open source web based interpolation map for the most commonly used interpolation methods is presented. Today, many commercial Geographic Information Systems (GIS) software are used in the production of interpolation maps. However, this situation causes the users to pay a large amount of money or use cracked programs. Although there are open source softwares, which can create interp ...Daha fazlası

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

Enhancement of the electrical properties of graphene for electronic devices

Ersu, Gülsüm

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

Design and development of a collimator mechanism that will be utilized in radiation therapy

Yazıcı, Mustafa Volkan

This thesis focuses on a Multileaf Collimator design that can shape the beam contour to fit the shape of target geometry and its design improvements. Main purpose of this design is lowering the number of leaves on the multileaf collimator and making the system easier to be controlled. As the Collimator devices undertake the most important point of the beam shaping procedure, ease of control and precision of collimator devices are the major points of operation. As the radiation therapy is one of the most complex and vital medical operations, this thesis started with the deep literature survey ...Daha fazlası

Antitumor effect of RGD peptite on cancer microtissues RGD peptidin kanser mikrodokuları üzerinde antitümör etkisi

Aydın, Veli Kaan

ABSTRACTCancer studies continue to gain interest in the recent period. Many types of cancer,especially breast cancer, continue to cause deaths worldwide and the number of people suffering from this disease is increasing. The methods that are used most at the basis of cancer studies are starting with 2-Dimensional (2D) cell culture. However, 2D cell culture can no longer adequately reflect in vivo conditions. Scientists have turned their efforts towards these 3-Dimensional (3D) cell cultures. There are many different ways of obtaining 3D cell culture. The preferred 3DPetriDish ™ technique in th ...Daha fazlası

Increasing the efficiency of dye-sensitized solar cells using ionic liquid based electrolytes Boya duyarlılaştırılmış güneş pillerinin verimlerini iyonik sıvı esaslı elektrolitler kullanarak artırmak

Mustafa Yaşar

ABSTRACTIn the last century, the energy demand of the world has been continuously increasing, and new and more environment-friendly energy sources search continues.As a result, Solar Cells have emerged as a renewable energy type. With the fact that when the sun is used efficiently it is a constant source of energy and a never-ending source of energy all over the world, triggering scientific studies on this subject and intensifying studies on solar batteries.With the influence of the economic factors in the materials, this issue has come up in three phases day by day. The fact that it is cheap, ...Daha fazlası

Finite element analysis of material and parameter effects in ballistic armors Balistik zırhlarda malzeme ve parametre etkilerinin sonlu elemanlar yöntemiyle analizi

Latif Tibet Aktaş

ABSTRACTBulletproof composite armor models are investigated using finite element software ANSYS/AUTODYN. A composite plate is modelled with Kevlar 29/epoxy, analysed, and the results obtained by this model are confirmed with the results available in the literature. Different materials are tested as secondary materials in the composite plate. The results obtained by these materials for unit weight and for residual velocities of the projectile are compared. A new stacking sequence study is conducted with the Kevlar 29/epoxy as primary material and Ultra High Molecular Weight Polyethylene (UHMWPE ...Daha fazlası

A research about discussion of organizational communication and strategic planning process

Selçuk, Oğulcan

In environment of globalization and intense competition, businesses make their long-term plans in order to sustain their existence. This planning ensures employees to understand the points of organization’s mission, its goal, the place where it wants to reach and how it will get there, and it is thought that organizational communication plays an important role in this respect. In this context, the main purpose of the study is to a research about discussion of organizational communication and strategic planning process. In the research where interview was preferred as data gathering tech ...Daha fazlası

Development of 3D-Printed plastic based low-cost sensing systems 3D baskılı plastik bazlı düşük maliyetli algılama sistemlerinin geliştirilmesi

Bayram, Abdullah

ABSTRACTEnvironment and health is two important things that are so important to human lifebecause they cannot be separated from each other. The problems related with thesetwo events will negatively affect human life. Therefore, health and environmentalproblems should be monitored with proper testing devices and analyzed. In order toperform these tests, we need cheap, reliable and fast test equipment. With therevolution of three-dimensional (3D) printing technology that is cheap, practical, fastmethod of production, this kind of test devices can be produced. This productionmethod is used to pro ...Daha fazlası

A Research On Human Resources Management In Mali: A Semi-Public Company EDM-SA Sample

Amadou, Samira Moustapha

In the context of a globalized economy, economic institutions must adapt to the competitive environment in which to be profitability is not enough anymore, they must also satisfy a creative, secure, socially acceptable working conditions for employees in order to increase the productivity. The concept of global performance refers to the need to discover and activate simultaneously the various levels of success, and in particular to pay particular attention to the steering and optimal use of Human Resources. Human resources are the basic driving power of a production economy. If the qua ...Daha fazlası

Modeling and experimental study of turbulent newtonian fluid in fully eccentric annulus considering temperature and pipe rotation effects

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

Custom designed optical tweezer for trapping yeast cells

Çobanoğlu, Nur

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