Erişim şekli için "info:eu-repo/semantics/closedAccess" Havacılık ve Uzay Bilimleri Fakültesi listeleme
Toplam kayıt 49, listelenen: 1-20
-
The aerodynamic force estimation of a swept-wing UAV using ANFIS based on metaheuristic algorithms
(Cambridge University Press, 2023)In this paper, a new approach to modeling and controlling the problems associated with a morphing unmanned aerial vehicle (UAV) is proposed. Within the scope of the study, a dataset was created by obtaining a wide range ... -
Analysis of combined passively and actively morphing blade root chord length and blade taper for helicopter control
(Emerald Group Publishing Ltd, 2019)Purpose The purpose of this study is to examine the effect of passive and active morphing of blade root chord length and blade taper on the control effort of the flight control system (FCS) of a helicopter. Design/method ... -
Assessing the self-service technology usage of Y-Generation in airline services
(Elsevier, 2018)Many airlines have introduced Self-Service Technologies (SST) and encouraged their passengers to use these technologies more. Because of the increasing importance of SST, it has been searched by considering Y-Generation ... -
Autonomous performance maximization of research-based hybrid unmanned aerial vehicle
(Emerald Group Publishing, 2020)Purpose This paper aims to investigate the autonomous performance optimization of a research-based hybrid unmanned aerial vehicle (i.e. HUAV) manufactured at Iskenderun Technical University. Design/methodology/approach To ... -
Causal Relationship Between Air Transport and Economic Growth: Evidence from Panel Data for High, Upper-Middle, Lower-Middle and Low-Income Countries
(Khazar University, 2019)This study aims to find out the causal relationship between air transport and economic growth based on income level. To this end, selected countries with high-income, upper-middle-income, lower-middle-income, and low-income ... -
CFD Simulations and External Shape Optimization of Missile with Wing and Tailfin Configuration to Improve Aerodynamic Performance
(Isfahan University of Technology, 2021)The wing of missile can be considered as an effective factor for determination of lift to drag ratio. However, there are few studies that investigate wing effect on missile aerodynamics. Therefore, the purpose of this study ... -
Characterizations of Microstructure and Properties of Dissimilar AISI 316L/9Ni Low-Alloy Cryogenic Steel Joints Fabricated by Gas Tungsten Arc Welding
(Springer, 2022)The demand for dissimilar joining of steel grades, namely austenitic stainless steels to low-alloy steels, may increase in near future owing to the fact that the storing of LNG is currently becoming a necessity, particularly ... -
Comparative experimental study on the modification of microstructural and mechanical properties of friction stir welded and gas metal arc welded EN AW-6061 O aluminum alloys by post-weld heat treatment
(Wiley-VCH Verlag, 2018)In this paper, the effects of post-weld heat treatment on modification of microstructures and mechanical properties of friction stir welded and gas metal arc welded AA6061-O plates were compared with each other. Gas metal ... -
A comparison of four machine learning techniques and continuous wavelet transform approach for detection and classification of tool breakage during milling process
(Canadian Science Publishing, 2022)In machining, the tool condition has to be monitored by condition monitoring techniques to prevent damage by the use of tools and the workpiece. Cutting forces acting on the tool between zero and maximum values cause the ... -
Conceptual design and optimal sizing of a small unmanned aerial vehicle with fuel cell and battery-powered hybrid propulsion system by meta-heuristic algorithms based on energy consumption
(Taylor and Francis, 2023)In this paper, a new conceptual design methodology for a hybrid propulsion system consisting of the battery and hydrogen fuel cells is presented based on the minimum energy consumption of the UAV. In this context, an ... -
Data clustering using leaders and followers optimization and differential evolution
(Elsevier, 2022)Data clustering is an important research topic in data mining. Although cluster analysis based on optimization algorithms has attracted great attention, optimization-based techniques face difficul-ties due to the non-linear ... -
An easy-to-produce HIS-based MIMO radio altimeter antenna design for aircraft
(Emerald Publishing, 2023)PurposeThe purpose of this study is to design a radio altimeter antenna whose production process is facilitated and can work with multiple-input multiple-output (MIMO) properties to provide space gain on the aircraft.Des ... -
Effect of Morphing on Control Energy of Output Variance Constrained Controller for Load-Carrying UAVs
(Institute of Electrical and Electronics Engineers Inc., 2019)This paper presents novel results for load-carrying UAVs having morphing capability and guided by output variance constrained controller. Effects of extension ratios of wing span and horizontal tail span on control energy ... -
Effects of the actively morphing root chord and taper on helicopter energy
(Emerald Group Publishing Ltd, 2019)Purpose The purpose of this paper presents the effects of actively morphing root chord and taper on the energy of the flight control system (i.e. FCS). Design/methodology/approach Via regarding previously mentioned purposes, ... -
Energy, exergy, and exergoeconomic analysis of a general UAV
(Inderscience Publishers, 2023)A 3E - energy, exergy, exergoeconomic - analysis of a rotary wing UAV that is used for general purpose has been accomplished in this study. In the study, a parametric investigation regarding the velocity, altitude and ... -
Facile deposition of carbon-doped TiO2 films by two-electrode electrodeposition setup
(World Scientific Publishing, 2021)This study presents a simple electrochemical deposition route to obtain carbon-doped TiO2 films. The deposition of the films is carried out on silicon substrates from a mixture of methanol (CH3OH) and Titanium (IV) ... -
The Factors Affecting the Passengers’ Avoidance to Use the Mobile Applications of Airlines
(Springer, 2022)Nowadays, rapid development in information technologies has been experienced in the aviation industry as in other industries. This development has affected both passengers and airlines in different aspects. The use of ... -
Fatigue analysis of bolted flange joints of a rotary dryer
(Elsevier, 2016)This paper describes the fatigue failure of a rotary dryer in a chemical plant. The process conditions required the dryer to be rotated continuously at a speed of about two and half revolutions per minute. The shell structure ... -
Fatigue analysis of girth gear of a rotary dryer
(Elsevier, 2016)This paper describes the fatigue failure of girth gear manufactured from low alloy cast steel of rotary dryer in a chemical plant. The cracks of T-section web of the girth gear occurred at the end of 25 year working period ... -
Frequency-dependent electrical parameters and extracted voltage-dependent surface states in Al/DLC/p-Si structure using the conductance method
(Springer, 2023)In the present work, a diamond-like carbon film (DLC) was electrodeposited on a p-Si substrate and was used to fabricate an Al/DLC/p-Si/Au metal/interlayer/semiconductor (MIS) Schottky diodes (SDs). The structural analysis ...