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Seramik Sağlık Gereçlerinin Sinterleme Sıcaklığının Fiziksel Özelliklere ve Tahribatsız Muayane Yöntemine Etkisi
(2016)Bu çalışmada, inşaat malzemeleri içinde sınıflandırılan seramik sağlık gereçlerinin, sıcaklığa bağlı olarak fiziksel özelliklerinin ve ultrasonik hızlarının değişiminin incelenmesi hedeflenmiştir. Bu amaçla, laboratuvar ... -
Düz Uçuş ve Tırmanmada Farklı Motor Tipleri İçin Taşıma Ekserjisi
(2016)Ekserji analizi, günümüzde hava trafiğinin artmasıyla birlikte hava araçlarından kaynaklanan küresel ısınma etkilerinin azaltılması ve enerjinin etkin kullanıma yönelik yapılan çalışmalarda büyük önem arz etmektedir. Bu ... -
Energy and exergy (ENEX) analyses of a MD-80 aircraft
(International Journal of Mechanical Engineering and Robotics Research, 2016)The growth in demand for air transport is a problem for the global and local environment. There are, moreover, fundamental conflicts with sustainable development objectives. Sustainability demands a sustainable supply of ... -
Borsa İstanbul'da İşlem Gören Çimento İşletmelerinin Etkinliklerinin Veri Zarflama Analizi Kullanılarak Ölçülmesi
(2016)Bu çalışmanın amacı Borsa İstanbul'a kayıtlı çimento işletmelerinin 2009-2013 dönemindeki etkinliklerinin araştırılmasıdır.Etkinlik ölçümünde Veri Zarflama Analizi kullanılmıştır. Veri Zarflama Analizi uygulamasında çimento ... -
Fault diagnosis for a UAV using unknown input observer
(Inderscience Enterprises LTD, 2016)In this paper a fault tolerant control strategy for a quadrotor is proposed in the presence of actuator faults. A linear mathematical model which is derived from nonlinear model by calculating the Jacobian matrix of the ... -
Operatingtemperaturesofthesolarcellsused Intheconcentrator System with Radiating Plates
(2016)Dünya çevresinde yörüngede dönen uyduların enerji ihtiyacını karşılamak için bir yoğunlaşmalı güneş hücresi sistemi önerilmiştir. Cassegrain tipi bir yansıtıcı kullanılarak 124 defa yoğunlaştırılan güneş ışığı sistemde yer ... -
Optlimisatlion of runway orlientatilons for three-runway configurations
(Royal Aeronautical Soc, 2016)Determination of runway orientation is a prime factor affecting the layout of airport facilities. This paper presents a new computer model called TORO (Tool for Optimum Runway Orientation) which is developed with an approach ... -
Using emission index to determine energy efficiency and environmental parameters of a turbofan engine at various flight phases
(Inderscience Enterprises LTD, 2016)In this study, an unordinary methodology for energy efficiency calculation of a turbofan engine is introduced. Emission indexes of the engine are used to find out energy efficiency and novel parameters for environmental ... -
Assessment of thermodynamic performance and exergetic sustainability of turboprop engine using mixture of kerosene and methanol
(Inderscience Enterprises LTD, 2016)In this study, first and second laws of thermodynamics were performed in the turboprop and is analysed and discussed with the mathematical model of sustainability performance of a turboprop engine using a mixture of ... -
Assessment of a ramjet engine for different Mach numbers
(Inderscience Enterprises LTD, 2017)The aim of this study is to determine optimum working of a generic ramjet engine. A thermodynamic analysis has been performed to evaluate three different ramjet flight conditions that have been obtained by using GasTurb. ... -
Failure analysis of landing gears strut bearings
(Pergamon-Elsevier Science LTD, 2017)This paper analyses TB 20 training aircraft main landing gear attachment bearings which were failed as a result of cracks. Strut bearing is an attachment fitting of landing gear which attached to the wing spar and secures ... -
Performance Evaluation of an Experimental Turbojet Engine
(Walter De Gruyter GMBH, 2017)An exergy analysis is presented including design parameters and performance assessment, by identifying the losses and efficiency of a gas turbine engine. The aim of this paper is to determine the performance of a small ... -
Metaheuristic and Machine Learning Models for TFE-731-2, PW4056, and JT8D-9 Cruise Thrust
(Walter De Gruyter GMBH, 2017)The requirement for an accurate engine thrust model has a major antecedence in airline fuel saving programs, assessment of environmental effects of fuel consumption, emissions reduction studies, and air traffic management ... -
An Analysis of the Factors Influencing Score Achieved during Pilot Training
(Japan Soc Aeronaut Space Sci, 2017)Human error is considered a causal or contributory factor in a major part of aviation incidents. It's also known from relevant research and reports that even the smallest error made by a person can cause fatal results in ... -
Rotor Balancing with Turbine Blade Assembly Using Ant Colony Optimization for Aero-Engine Applications
(Walter de Gruyter GmbH, 2017)The purpose of this paper is to present a novel turbine balancing using Ant Colony Optimization method. Results are compared against well known optimization methods available at open literature. With the new approach, ... -
Characterization of the interfaces formed at the silicon nitride superalloy joints
(Australian Ceramic Society, 2017)In this study, silicon nitride ceramics (Si3N4) were joined by using a capacitor discharge technique with an Inconel 718 superalloy interlayer and heat-treated in order to determine possible reactions between these two ... -
Evolution of Microstructure and Texture in AZ31 Alloy Subjected to Gas Forming
(Springer, 2017)In this study, AZ31 sheets were subjected to gas forming using a stepped geometry die and employing two different temperatures (400A degrees C and 450A degrees C) and exposure times (60 s and 120 s). Microstructural ... -
Bir döner kanata arıza toleranslı uçuş kontrol sistemi tasarımı
(2017)Bu çalışmada bir döner kanatın farklı motor arıza senaryolarının geliştirilmiş PID denetleyici yaklaşımıyla arıza toleranslı kontrolü yapılmıştır. Denklemleri verilen hava aracının motor dinamikleri de modellenerek gerçekçi ... -
Improving aircraft safety and reliability by aircraft maintenance technician training
(Pergamon-Elsevier Science LTD, 2017)Aircraft maintenance is one of the primary causes or contributing factors in aircraft accidents. It is clear that proper training of Aircraft Maintenance Technicians (AMTs) will avoid failures, reduce maintenance related ... -
Havaalanı İşletmeciliğinde Yeni Eğilimler: Türkiye Üzerine Bir Değerlendirme
(2017)Havaalanları birçok ülkede uzun yıllardır merkezi veya yerel idareler tarafından işletilmişlerdir. Ancak, son yıllarda bu durum değişmekte; havaalanlarının yönetimi yapısal bir dönüşüm geçirmektedir. Bu çalışmanın temel ...