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Coupled fixed point results for nonlinear contraction mappings having a mixed monotone property in a partially ordered G-metric space due to Choudhury and Maity are extended and unified. In this paper, some corresponding coupled fixed point theorems are obtain…

A serial hybrid optical amplifier composing of two amplification stages of erbium-doped fiber (EDF) amplifier covered C-band window and Raman fiber amplifier (RFA) covered L band window demonstrated. In this paper, the optimizations were done to obtain the opt…

Protez, eksik olan vücut uzuvlarını taklit edecek şekilde yapılmış aygıtların genel adıdır. Ortez, işlevini kısmen veya tamamen kaybetmiş bireylerin uzuvlarının performansını veya iyileşme sürecini artırmak amacıyla kullanılan medikal cihazlardır. Türkiye İsta…

Yabancı otlar olumsuz koşullara daha çabuk uyum göstererek, hızlı bir büyüme ve gelişme gösterip, kültür bitkilerinin suyuna ve besin maddesine ortak olmasının yanında, salgı maddeleri ile de onların zarar görmesine neden olmaktadır. Toprak işleme, herbisit …

Erosion is among the leading factors threatening our sources of soil and water. The use of soil susceptibility indices to determine erosion and risk situations has an important place especially in erosion studies. The susceptibility of soil to erosion is the…

Bir işletmenin katma değer yaratan faaliyetlerinin yaklaşık yarısı, araştırma, yenilik, verimlilik, istihdam yaratma, ithalat ve ihracat gibi kavramlarda anahtar rol oynamaktadır. Dolayısıyla İşletmelerin küresel rekabette varlığını sürdürebilmesi, endüstris…

Structural health monitoring allows the status of structures or components to be assessed using sensors. This method is widely used in the evaluation of the state of engineering structures, especially aviation and space engineering. Sensors used in structural …

Structural health monitoring is an interdisciplinary field that it is possible to identify defects in the structure or components of the structure at an early stage. The sensors used in structural health monitoring are called the piezoelectric wafer active sen…

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…

Infill walls in reinforced concrete buildings produce a strong effect on the strength and deformation capacity of the buildings. In practice, a partial or full absence of infill walls at the first stories may become one of the reasons for vertical irregularity…

Communication is the transfer of people’s emotion, opinion, belief, attitude and behaviours to other people via verbal, nonverbal or written means. Sign languages which are ways of non-verbal communication, are the basic methods used in the communication with …

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…

Bitumen polymer modification has a long history. However, most of the polymers currently used as additive in bitumen are not economically attractive. Thus, employing recycled materials in flexible highway instead of virgin ones has become a fundamental case …

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…

Plasticity index is one of the most important parameters affecting the behavior of fine-grained soils under monotonic and dynamic loads. Besides, various correlations between plasticity index and strength properties of fine grained soils can be obtained depend…

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…

Tourism is one of the rapid growth areas of the globalizing world. No matter what the extent of development, countries pursue a great deal of investments in this industry. Turkey is among these as being in top ten lists of international tourist arrivals (inbou…

In this study, the experimental application of polymer electrolyte membrane fuel cell (PEM-FC) with dc-dc boost converter is realized for compact design of electric vehicle (eV). The PEM-FC is an electro-chemical device which combines hydrogen with oxygen to p…

In this study, we focused on to drive a compound DC motor with a Fuel-Cell and battery, which uses hydrogen as a fuel. A fuel cell can supply maximum 40V electric. In order to drive a DC motor, it needs 200Vdc. Therefore, a microcontroller controlled boost con…

Analysis of faults in synchronous generators are so important to protect the generators and the power systems. In this paper, double line-to-ground fault analysis in unloaded synchronous generator is presented. Apart from the similar studies in the literature,…