The use of nonlinear analysis methods is widely preferred to determine the realistic
behavior of the structures through the computer technologies developed in recent
years. However, the stability problems that significantly affect the structure behavior
are often neglected in nonlinear analysis and in computer programs that are frequently
used to the realization of these analyses. Lateral torsional buckling behavior, which is
one of the stability problems, is considered to be neglected in many studies using
nonlinear analysis methods in the literature. As a result, the realistic behavior ...Daha fazlası
Ameliyat öncesi planlama veya eğitimde, zorlu cerrahi operasyonları kolaylaştırmak için 3D modelleme ve kişiye özgü kemik modeli kullanılabilir. Bu prosedür, 3D baskı ve simülasyonların gelişmesi nedeniyle daha etkili ve uygulanabilir hale geldi. Bunun yanında, sonlu elemanlar analizi (SEA) mekanik analiz sonuçlarına yakınsayarak kemik modellerinin ve çeşitli tıbbi ekipmanların oluşturulmasını daha hızlı ve daha güvenilir hale getirebilir. Fakat, simülasyonların ve mekanik testlerin modeller üzerindeki etkisi hala tartışmalıdır. Bu sebeple bu çalışmada femur başı ve medial malleol olmak üzere ...Daha fazlası
Photodynamic therapy (PDT) is a non-invasive therapy that induces photochemical reactions for treating many diseases including cancer using the advantages of light. It is based on the interaction of light at a specific wavelength and light-sensitive chemical which does not have dark toxicity. Thus, PDT is an anticancer therapeutic modality yielding cancer cell death. As with other anticancer therapies, some drawbacks reduce or limit the efficacy of PDT. To eliminate the disadvantages resulting in increased efficacy of PDT, it is combined with other anticancer treatment methods. Together use of ...Daha fazlası
Dünya nüfusunun 2025 yılında 8.5 milyara, 2050 yılında ise 9.7 milyara ulaşacağı
tahmin edilmektedir. Bahsedilen nüfus artışından kaynaklı gelecekte arazinin daha
yoğun kullanılacağı öngörülmektedir. Bu sebeple sınırlı ve yenilenemeyen arazinin
yönetimi bir zorunluluktur. Söz konusu arazinin yönetiminden bahsederken,
bütünleşik parçası durumundaki taşınmazların (ör. Bina, parsel) ve bu taşınmazlara
ilişkin mevzuatın (ör. Yasa, yönetmelik) yönetimi de planlanması gereken diğer
hususlardandır.
Geçmişten günümüze taşınmaz, sahip olduğu ekonomik değerden dolayı vatandaşlar
için bir gelir k ...Daha fazlası
Thanks to the rapid technological development, robot usage in human life increases day by day. Various kinds of robots that are designed for different tasks aim to increase the quality of human life by replacing or reducing required human power in related areas.
Being able to interact robots from a distance by using wireless communication not only provide mobility and ease of use to the user but also promote the usage of robots into various areas.
Considering these, this study aims to design a lower degrees of freedom robotic hand with respect to the natural anatomy of the hand and control i ...Daha fazlası
Significant development of radar systems after World War II has led to studying the interaction between electromagnetic waves at radar frequencies and different materials. One perspective of these studies is to ascertain ways of decreasing reflected waves. However, the applications have not been limited only to defense applications but also to different fields where human beings are exposed to electromagnetic waves to avoid potential health effects due to exposure to electromagnetic waves. Since the discovery of radar systems, many studies have focused on electromagnetic radiation and absorbin ...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
Inconel 738LC alaşımı nikel bazlı bir süperalaşımdır ve genellikle gaz türbinlerinde,
türbin nozullerinde ve türbin bıçaklarında kullanılmaktadır. Gaz türbin motoru
bileşenlerinde kullanımı yaygın olan Inconel 738LC çalışma ortam koşulları sebebi
ile yüksek sıcaklık ile birlikte yüksek korozyona da maruz kalmaktadır. Bu sebeple,
bu malzemenin yüksek sıcaklık mukavemet değeri ve yüksek sıcaklık oksidasyon
direnci büyük önem taşımaktadır.
Bu çalışmada karbon elementinin Inconel 738 alaşımında mekanik ve mikroyapısal
etkileri incelenmiştir. Oda sıcaklığında ve iki farklı yüksek sıcaklıktak ...Daha fazlası
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
This thesis focuses on design and development of a robot manipulator with dexterous forceps for single-incision laparoscopic surgery. Integrating the robotic capabilities into laparoscopy instruments, the study aims to increase precision and reduce limitations such as mobility constraints. Main objective of the thesis is to develop a robotic articulating laparoscopy instrument. In light of the first trials, it is seen that the dexterity and robotic control advantages are promising while the trocar's mobility constraint limits the workspace of the robotic laparoscopy forceps. An alternative sur ...Daha fazlası
With the rapid development of technology, cellular networks can no longer meet the
demands of wireless networks. Communication systems need to be updated to ensure
that every user equipment (UE) receives accurate and efficient service. Cell-free (CF)
networks offer advantages over cellular networks, such as more flexible resource
allocation, higher capacity, better coverage and lower interference. The deployment of
multiple access points (APs) and flexible allocation of resources leads to higher
network performance and efficiency. In addition, in CF networks, users can
communicate with ...Daha fazlası
6698 sayılı Kişisel Verilerin Korunması Kanunu kapsamında yükümlülüklerimiz ve çerez politikamız hakkında bilgi sahibi olmak için alttaki bağlantıyı kullanabilirsiniz.