Spektrum algılamada amaç spektrum boşluklarının doğru ve hızlı bir şekilde algılanmasıdır. Bu nedenle bilişsel radyo ağlarının başarımı büyük ölçüde spektrum algılama işlevine bağlıdır. Bu çalışmada, bilişsel radyo ağlarında spektrum algılma başarımını artırma…
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Ülkemiz aktif deprem kuşağı üzerinde bulunmakta olup oluşan depremlerde yapılarda can ve mal kayıpları meydana gelmektedir. Yapıların dinamik yükler altında güvenli kalacak şekilde tasarlanması ve imalatı, depremlerde oluşan can ve mal kayıplarını en aza indir…
The developments in internal combustion spark ignition (gasoline) engine technologies are in line with emission standards. The conversion systems which enable the use of LPG fuel in spark ignition (gasoline) engines renew themselves according to the developmen…
Titanium and its alloys are increasingly used in aerospace, automotive and biomedical industries because of their high strength, excellent corrosion, wear resistance and a wide range of mechanical properties. Materials with superior properties are needed in …
Fuel cells can be considered as clean, efficient and economic devices for the next power generation. Flow configuration and operating conditions such as temperature, relative humidity and stoichiometric number are key factors for improving cell performance. …
In this study, a thermoelectric generator (TEG) system is designed for the generation of electricity from solar energy. A temperature difference between surfaces of TEG must be achieved for electricity generation. Heating is provided by a solar-powered two-p…
Yeşil bina sertifika sistemleri, sürdürülebilir binaları tanımlamak ve belli kriterlere göre sınıflandırmak için en geçerli yöntemdir. Şu an ülkemizde bulunan yeşil bina sayısı günden güne artmakta ve ulusal bir sertifika sistemimiz olmadığından dünyada en ç…
In this talk, we work on a model of the prey-predator system to see the effect of system components on species distribution for both temporal and spatial structure. In some cases, changing environmental conditions results in extinction or leads the survival …
İçinde bulunduğumuz yüzyılda insan/çevre sağlığı çok büyük önem kazanmıştır. Bu hedefler kapsamında çok çeşitli (bitkisel, hayvansal, atıksal maddeler vb)’den yeni ahşap koruyucu çalışmaları devam edegelmektedir. Çay atıklarından (ISO 1574/ TS 1563) esasları…
Yaşamış olduğumuz yüzyılda çeşitli organik malzemelerin kullanımıyla insan/çevre sağlığı büyük önem kazanmıştır. Bu nedenlerle çok çeşitli materyallerden (bitkisel, hayvansal, atıksal vb) elde edilen organik koruyucular üretilmesi devam edegelmektedir. Araştır…
In the 20th Century the technological developments also caused the change in the building systems as in every area of life. The plate systems, the shell systems, the space-cage systems, structure systems, the pneumatic systems and the cabled systems defined as…
Point Cloud is widely used in reverse engineering services and in many architectural works. Because the Point Clouds contain elements that reach the extreme numbers; they have increased the need to develop new methods in their management, presentation and proc…
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 …
As a long-range vision, many countries is aimed to generate all of their heat and electricity without using fossil fuels. In the meantime, providing the sufficient power is convenient on demand is essential in new energy technologies whenever and wherever this…
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…
The particulate matters in ambient air were sampled in Denizli, Turkey in winter and spring using Bergerhoff Method. The average dry deposition fluxes were calculated as 152.1 ± 30.7 mg m-2 day-1 and 333.9 ± 214.2 mg m-2 day-1 in spring and winter, respectivel…
Metal foams are light cellular materials that are a natural inspiration. Wood, bone and sea sponges are some wellknown examples of such structures. Metallic foams offer excellent mechanical response combination with lightness, good thermal and sound insulation…
Numerous studies have been carried out in the field of material science for the development of lightweight materials with high wear resistance, high strength and good corrosion resistance. Aluminum and its alloys are one of the most important engineering mater…
Ceramic materials are characterized by outstanding hardness, extreme compressive strength and elastic modulus, wear resistance, thermal shock resistance, chemical stability and high temperature properties. Therefore they have potential materials to be use at i…
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-…