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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…

Recently, the basis properties and eigenfunction expansions in various function spaces of the eigenfunction of the regular boundary value problems with spectral parameter in the boundary conditions have been investigated by many mathematicans. However in diff…

Bu çalışmada, saf alüminyum ve ağırlıkça %0.1, %0.3 ve %0.5 oranında grafen nanotabaka (GNT) katkılı alüminyum (Al) matrisli kompozitler farklı sinterleme sıcaklıklarında (TS=550, 600, 630 °C) toz metalurjisi metoduyla üretilmiştir. Üretilen kompozitlerin d…

Pilling resistance is an important subject for apparel industry. The purpose of this research was to determine whether the physical yarn properties have an effect on pilling resistance of knitted fabrics. In addition, the other aim of work was to investigate w…

Sanayileşme, insan yaşamına pek çok alanda konfor ve kolaylıklar kazandırmıştır. Ancak bu sürecin tetiklediği seri üretim ve tüketim alışkanlıkları, çevresel tahribatın yanı sıra sosyal eşitsizlikleri de beraberinde getirmiştir. Bu durum, günümüz dünyasında sü…

In many engineering applications such as aerospace, automotive and telecommunications, icing leads to mechanical and socio-economic problems such as efficiency reduction, decreased power transmission, security threat, material damage and energy waste. Theref…

Dünya toplam bor rezervi sıralamasında Türkiye % 72’lik pay ile ilk sıradadır. Bor elementinin; ilaç ve kozmetik sanayi, inşaat ve çimento yapımı, cam sanayi, kimya sanayi, ahşap malzemelerinde koruyucu, makine sanayi, nükleer sanayi, tarım sektörü ve otomobil…

Bu çalışmada, ağırlıkça %0.1, %0.3 ve %0.5 oranında grafen nanotabaka (GNT) takviyeli alüminyum (Al) matrisli kompozitler toz metalurjisi metoduyla üretilmiştir. Üretilen kompozitlerin deneysel yoğunluğu, çekme dayanımı, aşınma oranısırasıyla; Arşimet yoğunl…

Bu çalışmanın amacı, Al2O3 ve SiO2 kaynağı olarak seramik üretiminde kullanılan 5 farklı kaolenin jeopolimer üretiminde kullanılabilirliğinin araştırılmasıdır. Bu amaçla beraber öğütülen kaolen-NaOH karışımları su ile birleştirilip preslenmiştir. Taze jeopol…

In the ceramic sanitaryware sector two different slips are used for different products. These slips are VC (vitreous china) and fine fire clay (FFC). Large-sized products must have low firing deformation, like washbasin, shower tray etc. are produced from FFC …

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) …

Friction stir spot welding (FSSW) method is prone to automation. In this way, by integrating the robot and automation systems have been easily developed. Thanks to the method, the effective overlapping joints can be obtained a short processing time. In the stu…

For a successful thermal performance, the right choice and design of the thermal management materials used in LED die-moulding, cooler and soldered parts is a critical engineering problem. Because they are affected by heat emitted from the pn junction in the L…

Hand exoskeleton systems extend the mechanical sensing and manipulation capabilities of a human user in a real and/or virtual environment. Design of such a system needs careful consideration of associated requirements along with optimised, human-hand compatibl…

An analysis of mechanical stresses under an external AC magnetic field in a coil stack was performed using the finite element method solving "mechanical equilibrium equation" by Comsol Multihysics finite element software. A-V formulation has been used for the …

In this work, the effects of bis (2-methoxy-4-allylphenyl) oxalate (I) on levitation (Fz) and lateral forces (Fx) of bulk MgB2 superconductor has been investigated and reported for the first time. All samples were prepared from magnesium powder (Mg, 99.8 %),…

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…

The depletion of natural resources and increasing environmental pollution necessitate recycling to reduce resource consumption and pollution. This study, conducted at Kadifeteks Mensucat A.Ş., compares the fastness performance of fabrics made from recycled pol…

In this study, the impregnation of Lareks wood with borax and nanotechnological varnish at various vacuum / diffusion times according to ASTM 1413-76 standards and the changes on technological properties were investigated. Pressure resistance properties were d…

Nowadays, nature-inspired structural colorization takes increasing attention due to its exceptional optical properties. One-dimensional (1-D) photonic crystals are new kind of optical materials which can be used to obtain structural colorization. In recent yea…