Oscillators are one of the most important basic circuit blocks frequently used in electrical-electronics engineering applications. Among several types of the sinusoidal oscillators, quadrature oscillators are frequently used in communication circuits, control …
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Asynchronous motors are the most preferred engines in the industry due to factors such as their stable speed, economic and operational safety. Recently, asynchronous motors have been used as generators in the power generation sector and especially in wind turb…
The log files that are continuously recorded are one of the most important information generated by web servers.Hadoop is an open source application platform that works on large amounts of data using hardware clusters. Web server logs are large-volume plain …
Bu çalışmada birer adet ikili Al-9Si, üçlü Al-9Si-0,1Sr ve dörtlü Al-9Si-0,1Sr-0,6Mg alaşımı indüksiyonlu ergitme ocağında ergitme ve oda sıcaklığında tutulan kokil kalıba döküm yöntemi ile üretildi. Alaşımların yapısal ve mekanik özellikleri üretilen alaşım k…
Cellular phones are playing an important role in technological devices in today’s world. People start to use cellular phones at early ages. Even kids have their own cellular phones as a precaution for their security. However, researches evaluating long term …
The (9) and (12) compounds are optimized at B3LYP/6-31G(d,p) level in gas phase. The calculated bond length and bond angles are compared with experimental values. Also, the calculated vibrational frequencies are assignment for mentioned compounds according t…
Variable magnetic fields are widely used in energy production. Two methods can be applied to make the magnetic field variable. The first of these is to apply an alternating current to the insulated conductor on the outer surface of a core. The other is to rota…
Coils are electrical-electronic circuit elements and they are obtained by winding conductive wires on top of one another on a core or space, when electrical current pass through the coils they bring a magnetic field around them. The electromotive force (emf) t…
İnşaat sektöründe, kurumsal sosyal sorumluluk (KSS / CSR-Corporate Social Responsibility) konusu giderek önem kazanmaktadır. Farklı ülkelerde farklı sektörlere de odaklanan KSS kavramı inşaat sektöründe genel olarak sürdürülebilirlik ekseninde ele alınmaktad…
This study presents the modelling of the pathological elements based memelements. More than forty years ago, Chua predicted the existence of memristor (memory+resistor) which is the fourth fundamental passive circuit element. In 2008, Hewlett Packard (HP) rese…
Maxwell denkleminin AV formülasyonu esas alınarak, zamana bağlı bir akım altında süperiletken telin elektromanyetik özelliklerini çözmek için yeni bir sayısal model geliştirilmiştir. Farklı akım genlikleri için alternatif akım (AA) kayıpları hesaplanmış ve iki…
Eklemeli üretimdeki son gelişmeler ile birlikte, geleneksel tekniklerle üretimi oldukça zor olan hücresel yapılar, daha kolay bir şekilde üretilebilmektedir. Sandviç panellerde çekirdek olarak kullanılabilen hücresel malzemeler, düşük yoğunlukta yüksek rijit…
The hexakis-[30-(10,20,30-thiadiazol-40-yl)phenoxy] (5) and hexakis-[50-oxy-20- methylbenzothiazole] (6) cyclotriphosphazene derivatives were synthesized by Çiftçi et al. in 2017. The structural parameters for the compound (6) and the fluorescence properties…
Because of the great earthquakes that have occured for centuries, many loss of lifes and goods have been experienced all over the world. Our country is located on active seismic zone. Many great earthquakes have also occurred in our country and have caused man…
One of the most consumed energy sources today is fossil-based fuels. While the reserve of these fuels is declining, it continues to be the main cause of environmental pollution. Due to the influence of environmental factors and increases in fuel costs has acce…
Analog filters have an important role in modern communication systems. Filter circuits with low noise, which occupy less chip area and consume less power as well as operate in the high-frequency region, are required with the developing technology. In the liter…
Güç sisteminde akım ve gerilimin dalga formunun sinüsoidal formda olması gerekir. Fakat bu her zaman mümkün olmaz. Non-sinüsoidal gerilim veya elemanlar güç sisteminde harmoniklerin oluşmasına sebeb olur. Harmonikler güç sisteminde, ek ısıl kayıplara, rezona…
In this study, two different welding methods as TIG and TIG Pulse are used for joining 304 series stainless steel sheets having 2 mm thickness. In preparation of welded specimens were used three different welding currents ranging from 70 A to 110 A by rise o…
The metal ions accelerate drug action and efficiency of therapeutic compounds [1]. Metal complexes may inhibit the protein synthesis because of interference in the cellular respiration. Cancer is leading cause of fatality in recent years and remained as a ch…
Transition metal complexes are playing an important role the field of bioorganic chemistry. it has been attempted to investigate the anti-cancer properties of complexes of 2-benzimidazole derivatives formed with various metal atoms [1-2]. In these examinatio…