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-…
Search
Year: 2018 ×
Clear filters
67 results for “Multilevel control”
Bu çalışmada, non-lineer ve dengesiz yükün bulunduğu güç sisteminde aktif filtre kullanılarak harmonik distorsiyonun değeri düşürülmüştür. Pasif harmonik filtrelerin aksine, modern aktif harmonik filtreler, güç faktörü düzeltme, gerilim regülasyonunu saglama…
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…
Nowadays, home automation systems are one of the areas where technological developments are applied. Thus, devices such as doors, windows, lighting, heating, cooling, security cameras, elevator, fire, water pressure, garage, solar energy systems and TVs, curta…
Ricania japonica (Melichar, 1898) (Homoptera: Ricaniidaee) is a harmful insect species. It is spreading in the Eastern Black Sea coastline from Artvin- Kemalpaşa to Ordu - Perşembe. Since 2006, R.japonica has been continuing to suffer the loss of all vegetab…
Lower limb exoskeletons are wearable robotic devices which either augment human power or facilitate a walking ability for those who lost it by injury or aging. They have been getting more and more attention in the scientific community thanks to its increasin…
Kargı kamışı (Arundo donax L.) üzerinde beslenen Melanaphis donacis’nın üç farklı sıcaklıklardaki biyolojik parametreleri (22.5 0C, 25 0C ve 27.5 0C) araştırılmıştır. M donacis’in bazı biyolojik parametrelerini incelendiğinde rm değerlerinin en düşük olduğu …
Environmental engineering is an engineering discipline that is concerned with protecting people from adverse environmental impacts such as pollution, as well as improving environmental quality. Environmental engineers work to improve recycling, waste disposal,…
Bionic hand is a system consisting of many electronic and mechanical parts. Motion in the bionic hand system is achieved by motor control. One of the most complex organs of the human body is the hand. Bionic hand design has been studied in engineering and biom…
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…
Kanser küresel olarak ölümlere neden olan ciddi bir halk sağlığı sorunudur. Bu sağlık sorununun nedenleri genetik (%5) ve çevresel etmenler (%95) olarak iki gruba ayrılmaktadır. Çevresel etmenler arasında ise beslenme alışkanlıklarının kanser oluşumunda önem…
With this work, automation levels of the railway systems will be described as explained in IEC 62290 standard, and then the relationship between these defined levels of Istanbul metro lines will be tried to be explained. In railway systems, the level of automa…
Bağcılık, Tokat ilinde bitkisel üretim bakımından önemli bir yerdedir. Fakat üzüm üretimi sırasında karşılaşılan sorunlardan biri olan yabancı otlar büyük problem oluşturmaktadır. Bu çalışma ile; Tokat ili bağlarında sorun oluşturan yabancı ot türlerinin yay…
This study was compiled from the results of various researches performed on using diethyl ether as a fuel or fuel additive in diesel engines. Three different techniques are used the reduction of the harmful exhaust emissions of diesel engines. The first tech…
This study was compiled from the results of various researches performed on using diethyl ether as a fuel or fuel additive in diesel engines. Three different techniques are used the reduction of the harmful exhaust emissions of diesel engines. The first techni…
Introduction. Environmental pollution is a global ecological problem for today. Georgia is no exception. Among the many other contaminants, the environment here poses a serious threat to military wastes left by the former soviet Army, including toxic substan…
Tek Fazlı Şebeke Kalkışlı Sabit Mıknatıslı Senkron motorlar (TF-ŞKSM) günümüz endüstrisinde kullanılan standart indüksiyon motorlarına göre özellikle küçük boyutlarda daha yüksek verimlilik sunabilmektedirler. Verimliliğin artması çevre üzerindeki olumsuz et…
Bu çalışma Mersin ilinde şeftali yetiştiriciliği yapan çiftçilerin yabancı ot mücadelesi ve herbisit kullanımı konusundaki davranışlarının belirlenmesi amacıyla Mersin ili, Mezitli ilçesinde gerçekleştirilmiştir. Bu araştırmada kullanılan veriler 50 şeftali …
Diyabet, bireyin ve ailesinin yaşamını çeşitli boyutları ile etkileyen, zorunlu yaşam tarzı değişikliklerini gerektiren, komplikasyonları nedeni ile yaşam kalitesini azaltan kronik bir hastalıktır. Tüm kronik hastalıklarda olduğu gibi sık görülen, tedavisi s…
As the world is running out of fossil fuels and the environment is being seriously damaged by the combustion residuals of the internal combustion engines, the world countries have begun to search alternative ways for mobility. Lightweight electric vehicles w…