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The study presents the tribological behavior of epoxy matrix composites containing two different fillers. Hybrid composites were produced with casting method. The composites contains fillers with different particle sizes (<90µm and in the range of 150-300 µm) …

Boron is a important element that can be used in many different fields such as the ceramic industry, fertilizers, insecticides, corrosion inhibitors and etc. Boric acid is a naturally occurring compound containing boron, oxygen and hydrogen (H3BO3) elements. I…

Energy is at the forefront of the needs to maintain the continuity of life and make it easier, and the energy demand is increasingly dependent on population growth. Today, fossil energy resources are widely used to meet energy demand and renewable energy resou…

In this study, we aimed to investigate the effect of the anxiety on blood pressure and heart rate in periexam period. For this purpose, 83 paramedic first class students (19.2±1.0 year old) were included. The blood pressure and heart rate were measured in the …

In order to evaluate different modeling techniques for Unglazed Transpired Collectors (UTC), not only mathematical modeling method for UTC based on heat transfer expressions to estimate the various heat transfer coefficients for the UTC components and empirica…

Lubricant oils are products designed to form a protective film that reduces wear and friction of machinery moving parts, protect against corrosion, cool surfaces, and reduce energy consumption. During operation, lubricant undergoes chemical changes due to cont…

Many situations in human life are described with uncertain narratives. The fuzzy set theory has revealed as a powerful tool to deal with the uncertainty of human thoughts and expressions, by Azerbaijani Prof. Dr. Lotfi A. Zadeh in 1965. In the classical cluste…

The use of alternative energy sources has begun to increase with the ever-increasing demand for energy. Today, with this increase, energy production is being tried to be obtained from alternative energy sources. Many companies have included the installation of…

The marketing strategy is concerned with the creation of the target market selection and necessary marketing mix in order for the businesses to achieve their marketing objectives. Marketing creativity includes creative applications in solving marketing problem…

The capitalist system’s entry of a crisis from the 70s has facilitated the "meta" of education, which first led to changes in the provision of educational services. Presentation of the education service at a price does not mean that the education is used for t…

LEDs that emit blue light are needed to create white light using LEDs. In 1991, Japanese scientists Isamu Akasaki, Hirochi Amano and Shuji Nakamura invented LEDs that emit blue light. From this date it became possible to use the LEDs as lighting elements. Rapi…

The study of nonlinear boundary value problems is a very important and difficult area of research in differential equations. The aim of our work is to establish the existence of solutions for a second order boundary value problem which models different real si…

Developments in Computer Technologies are rapidly spreading all over the world. The internet usage at the beginning of this spread is also manifested in every field. In particular, the use of the internet as a means of communication has made these technologi…

Legendary or ordinary battles which occurred in battlefields from far in the past in the history of mankind attracted visitors. No matter what the result was a triumph or defeat these battles and their sites are evaluated as heritage attractions and they have …

In this work, the effect of Ti addition (0, 1, 3, 5, 7, 10 wt%) on the electrochemical properties of Al-25Si alloys fabricated by melt spinning was investigated. Preparation of anode materials, the spinned types were powdered by cryomilling. The electrochemica…

The major part of freight transportation in Turkey is conducted by highway, the increase in the number of trucks and other heavy vehicles, as well as legislations allowing an increase in axle load that lead to deterioration such as rutting in flexible road pav…

Various deteriorations primarily rutting occurs in hot mix asphalt under conditions of traffic, climate and environmental in length of time. To increase the resistance of mixtures and thus delaying these deteriorations, the various additives are added to the b…

Today, university campuses are important living spaces with their versatile functions in terms of recreational, social, ecological and economical aspects as well as educational and scientific studies. Recreational activities have an important place in the life…

Recently, works on the development of equipment in the field of power electronics has been increasing day by day. Inverter design is one of the outstanding issues in the field of power electronics. One of the most important of these studies has been the multi-…

DC-DC boost converters are usually used so as to increase voltage in battery charging of electrical vehicles, power factor correction circuits and solar photo voltaic panels etc. applications. The control of these converter types is realized with Pulse Width M…