Güncel Gönderiler: Fakülteler
Toplam kayıt 10075, listelenen: 4161-4180
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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 ... -
Calculation of HC, CO and NOx from civil aviation in Turkey in 2012
(Inderscience Enterprises LTD, 2013)To meet the growing demand for air transport, airline companies doubled their aircraft numbers in Turkey, where civil aviation activities have shown great development in recent years. This increase in aircraft numbers ... -
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 ... -
Numerical Analysis of the Cavity Flow subjected to Passive Controls Techniques
(IOP Publishing LTD, 2018)Open-source flow solvers are getting more and more popular for the analysis of challenging flow problems in aeronautical and mechanical engineering applications. They are offered under the GNU General Public License and ... -
UAV path planning using segmented cellular evolutionary algorithm
(Inderscience Enterprises LTD, 2016)Path planning is one of the most important issues for sustainable development of unmanned aerial vehicles (UAVs). The aim of the path planning is to provide the shortest and safest route. In this study, an algorithm has ... -
Energetic and exergetic efficiency modeling of a cargo aircraft by a topology improving neuro-evolution algorithm
(Pergamon-Elsevier Science LTD, 2016)An aircraft is a complex system that requires methodologies for an efficient thermodynamic design process. So, it is important to gain a deeper understanding of energy and exergy use throughout an aircraft. The aim of this ... -
Dynamic modeling of exergy efficiency of turboprop engine components using hybrid genetic algorithm-artificial neural networks
(Pergamon-Elsevier Science LTD, 2015)Genetic algorithm is utilized to design the optimum initial value of parameters and topology of the artificial neural network which is trained by applying the improved backpropagation algorithm using momentum factor so as ... -
Capacity and delay analysis for airport manoeuvring areas using simulation
(Emerald Group Publishing Limited, 2014)Purpose - The aim of this study is to identify the nodes where congestion occurs in the manoeuvring area of a large-scale airport and to provide appropriate suggestions for improvement. Design/methodology/approach - To ... -
Air Traffic Control Service Quality Perceptions of Domestic Airline Pilots in Turkey
(Amer Inst Aeronaut Astronaut, 2011)Numerous academic and industrial studies have been conducted and different approaches have been developed for the current air transportation system with its rapidly increasing traffic volume. Congestion due to capacity ... -
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 ... -
Entropy Generation Calculation of a Turbofan Engine: A Case of CFM56-7B
(Walter De Gruyter GMBH, 2018)Entropy generation and energy efficiency of turbofan engines become greater concern in recent years caused by rises fuel costs and as well as environmental impact of aviation emissions. This study describes calculation of ... -
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 ... -
Environmental impact assessment of a turboprop engine with the aid of exergy
(Pergamon-Elsevier Science LTD, 2013)To develop approaches that effectively reduce engine environmental effect of aircrafts, it is necessary to understand the mechanisms that have enabled improvements in thermodynamic efficiency of aircraft engines. In the ... -
Investigation of thermodynamic performance based on the humidity effect in the aircraft environmental control systems
(Inderscience Enterprises LTD, 2015)Some environmental parameters, such as pressure, temperature, humidity and velocity, of air are important for passengers, stayed in aircraft cabin. These values change with altitudes, also atmospheric conditions. The ... -
Assessment of thermodynamic and environmental performances in subcooling process for different refrigerants
(Inderscience Enterprises LTD, 2017)Subcooling application in cooling processes leads to increasing of cooling performance and energy efficiency within defined limits. This study examines subcooling effects of refrigerants on the coefficient of performance ... -
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. ... -
Aero-propulsive modelling for climb and descent trajectory prediction transport aircraft using genetic algorithms
(Royal Aeronautical Soc, 2014)In this study, a new aero-propulsive model (APM) was derived from the flight manual data of a transport aircraft using Genetic Algorithms (GAs) to perform accurate trajectory predictions. This new GA-based APM provided ... -
Geçmişten Günümüze Seramik Sanatında ‘Baykuş’ Figürü
(2014)İnsanoğlunun varoluşundan günümüze kadar neredeyse her kültürde "baykuş" figürüne rastlamak mümkündür. Belki de paradoks ve gizin; yaşam ve ölümün, dinlenmenin, dişiliğin, karanlığın ve bilinmeyenin öğretmeni olduğu için ... -
Hinduizm ve Terakota Tapınaklar
(2016)Kültür olgusunun içeriğini oluşturan inanç, gelenek, düşünce biçimi gibi unsurlar sanatın da var olmasındaki en önemli etmenler arasında yer almaktadır. Dolayısıyla kültürel öğeler ve sanat birbirinden bağımsız düşünülmemektedir. ... -
Exergoeconomic Environmental Optimization of Piston-Prop Aircraft Engines
(Taylor & Francis Inc, 2015)In this study, exergy, exergoeconomic, exergoenvironmental analyses, and exergoeconomic environmental optimization are applied to a four-cylinder, spark ignition, naturally aspirated and air-cooled piston-prop aircraft ...
