Control and simulation of swarm mobile robots

Şen, Hayrettin

This thesis presents both control of mobile robots that can move by using collective motion algorithm and simulation of the robots during the motion. The orientation of the robots was controlled remotely by one user during the collective motion. The transmission of orientation data from the remote controller to the robots was done by using XBee modules. The control algorithm of collective motion was developed by using individual-based model. Two modes are considered during the control. These modes are search and swarm mode. The collective motion was performed by robots that are moving with re ...Daha fazlası

Making the Pixels Visible

Işıl Işık Mutlu

Websites are one of the most important components of the internet. We use web browsers every day to browse websites using the internet for searching for information, buying goods, reading news, following online lectures, interacting on social media, etc. When a website is opened, it contains many components that are too complex for an ordinary user to be aware of. By using third-party tracking cookies or pixels added for advertising or analytical purposes, ad networks can track the user on the web. As browser extensions that use filter lists became more successful at blocking cookies, follower ...Daha fazlası

Rapid maxillary expansion effects on dynamic measurement of natural head position

TANCAN UYSAL

Objective: To identify the effect of rapid maxillary expansion (RME) procedure on dynamic measurement of natural head position (NHP). Materials and Methods: The treatment group comprised 23 patients, 12 girls and 11 boys (mean age: 10.1 6 1.1 years), and the control group comprised 15 subjects, 8 girls and 7 boys (mean age: 9.7 6 1.4 years). The test subjects underwent RME treatment using full cap acrylic device, and the mean amount of expansion was 5.48 mm. An inclinometer and a portable data logger were used to collect the NHP data. Intragroup changes were evaluated by using nonparamet ...Daha fazlası

Boron doped titanium dioxide nanotube arrays: production, characterization and photocatalytic properties

Bilgin, Kübra

Photocatalytic degradation and complete mineralization of toxic organic compounds in water, soil, and air in the presence of semiconductor materials have received much attention over the last decades. Electronic structure of semiconductors is characterized by a filled valence band and an empty conduction band. When the semiconductor is irradiated with light of sufficient energy corresponding to or exceeding its band gap, an electron is promoted into the conduction band, leaving a hole in the valence band. The electrons and holes are good reductants and powerful oxidants, respectively, and they ...Daha fazlası

Evaluation of neural differentiation of PC12 cells grown on graphene coated ITO microchips Grafen kaplanmış ITO mikroçip üzerinde büyütülen PC12 hücrelerinin nöronal farklılaşmasının değerlendirilmesi

Gölcez, Tansu

ABSTRACTNervous system diseases occupy a very large place among diseases without treatment today. One of the major challenges in nervous system diseases is achieving functional connection between nerve cells. A neuronal network is a very complex structure consisting of connections between neuronal cells through dendrites and axons. In this context, a human brain can be described as a complex neuron network. Platforms capable of creating a neuronal network have the potential to be used in a variety offields, such as modeling neuron-related diseases, finding new treatments, building biological c ...Daha fazlası

Nonlinear viscoelastic properties of nano and micro sized clay suspensions Nano ve mikro boyutlu kil süspansiyonlarının doğrusal olmayan viskoelastik özellikleri

Ülker, Ceylan

ABSTRACTClay colloids and suspensions are distinguished from other colloidal minerals by wide ranges of application area. Clay-based colloidal systems are frequently used in various industries, including cosmetics, oil industry, medicine, pharmacy, catalysis, textiles, remediation, and food packaging. Mechanical and thermo-structural properties of these systems provide valuable information in terms of some important criteria such as shelf life, gelation process, and degradation time. The foucus point of this study is to consider the application of water-clay suspensions in drilling fluid more ...Daha fazlası

The evaluation of innovative insulation materials for energy efficiency in civil engineering

Thermal insulation term is the most important measure that provides the thermal comfort which human being has been looking for as a natural habit from the first residential lifestyle begins. The inventions in this topic, especially has been arisen in last centuries and specifically in the last century it has been carried forward and both aesthetic and performance based products have been researched to be discovered. In the light of researches each in academic and practical fields, the hope of this demand to be provided is increased via innovative insulation materials. Accordingly, to c ...Daha fazlası

EMG PSD Measures in Orthodontic Appliances

ASLI BAYSAL

The human body consists of different systems which include the nervous system, the cardiovascular system, the musculoskeletal system, etc. Each system performs some kind of vital task and carries on many physiological processes. For example, the primary functions of the musculoskeletal system can be summarized as generating forces, producing motion, moving substance within the body, providing stabilization, and generating heat. Physiological processes are multifaceted fact and most of them manifest themselves as signals that reflect their nature and activities. These types of signals may be ho ...Daha fazlası

A research on sensory branding of hotels and impact on tourist experience case of Izmir Otellerin duyusal markalaşması ve turist deneyimine etkileri üzerine bir araştırma İzmir örneği

Sarıbaş, Özgür

ABSTRACTNowadays, companies try to distinguish themselves from their opponents by using senses (“sight, sound, smell, taste and touch”) in their brands. This practice is known as sensory branding in literature. Recently, it has been concluded that studies on sensory branding have been conducted in tourism research, and these studies have mostly focused on marketing, branding and experience researches. In this study, the process of transformation of sensory characteristics provided by hotels to experience, and the impacts of sensory branding in hotels on tourist experience are examined.ÖZETGünü ...Daha fazlası

Low-shrinking composites. Are they reliable for bonding orthodontic retainers?

TANCAN UYSAL

To evaluate the shear bond strength (SBS), fracture mode, wire pull out (WPO) resistance and microleakage between low-shrinking and conventional composites used as a lingual retainer adhesive. Methods: A total of 120 human mandibular incisor teeth, extracted for periodontal reasons, were collected. Sixty of them were separated into two groups. To determine the SBS, either Transbond-LR (3M-Unitek) or Silorane (3M-Espe) was applied to the lingual surface of the teeth by packing the material into standard cylindrical plastic matrices (Ultradent) to simulate the lingual retainer bonding area. To t ...Daha fazlası

Investigating the combinatory effect of dual photosensitizers ıncorporated mesoporous silica nanoparticles and photodynamic therapy for biofilm eradication = İkili fotosensitizan i̇çeren mezogözenekli silika nanopartiküller ve fotodinamik terapinin biyofilmin yok edilmesinde kombine etkisinin araştırılması

Er, Hilal

ÖZETBakteriyel enfeksiyonların insan sağlığı üzerinde büyük etkisi vardır, hastalıklara neden olarak insan hayatını tehdit ederler. Bu sorunun ciddiyeti, ilaca dirençli bakteri suşlarının büyümesi ve yayılmasıyla artmıştır. Bakteriyel kaynaklı enfeksiyonların tedavisinde en sık kullanılan yöntem antibiyotik tedavisidir. Bu nedenle bakteriler, bir savunma mekanizması olarak antibakteriyel ilaçlara karşı direnç kazanırlar. Yanlış antibiyotik kullanımı enfeksiyonların tedavisini zorlaştırır. Yanlış tedavi, enfeksiyon bölgesinde bulunan bakterilerin biyofilm oluşturmasına neden olur. Biyofilmler, ...Daha fazlası

Social media analysis based on mobile systems

Yavuz, Levent

The use of internet and social media has increasing with the developing new technologies and large number of people have actively using of the internet. At the same time the development of mobile technologies and the widespread usage of the mobile devices that can be shown as the reason for that. In this way, social media has become a virtual environment in which people interact with each other. Some of social media platforms such as Twitter have become very popular and most of people share some information about themselves on these platforms. They also share their ideas, thoughts, live ...Daha fazlası