Başlık için Havacılık ve Uzay Bilimleri Fakültesi listeleme
Toplam kayıt 110, listelenen: 13-32
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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 ... -
Covid-19, Financial Risk and The Airline Industry
(Mehmet Akif Ersoy Üniversitesi, 2021)The aim of this study is to investigate which financial variables increases or decreases the risk of the bankruptcy of airlines during periods of crisis when there is a possibility of financial distress. In this study, ... -
CRITIC Temelli EDAS Yöntemi ile Havayolu İşletmelerinde Performans Ölçümü Uygulaması
(Pamukkale Üniversitesi Sosyal Bilimler Enstitüsü Dergisi, 2019)Bu çalışmanın amacı havacılığa özgü ölçüm göstergeleri kullanılarak, havayolu şirketlerinin küresel finans krizi öncesi ve sonrasıperformansının çok kriterli karar verme (ÇKKV) yöntemleri aracılığıyla incelenmesidir. Bu ... -
Çevrimiçi Alışveriş Bağlamında Tüketiciler Tarafından Algılanan Gizlilik Endişesinin Kişiselbilgi Koruma Davranışına Etkisi
(Çukurova Üniversitesi, 2021)Çevrimiçi alışveriş kapsamında, işletmeler mal ve hizmetlerini geliştirebilmek ve rekabet avantajı sağlayabilmek için tüketicilerin kişisel bilgilerine ihtiyaç duymaktadır. Diğer yandan, tüketiciler çevrimiçi alışveriş ... -
Çocuklu Yolcuların Havacılık İşletmelerine Yönelik Beklenti ve Memnuniyetlerinin Araştırılması
(Ömer Halisdemir Üniversitesi İktisadi ve İdari Bilimler Fakültesi Dergisi, 2019)Ülkemizde havacılık sektöründe, özellikle 2003 yılından sonra yaşanan hızlı gelişimlerle, birçok kişi seyahatlerinde havayolunu tercih etmeye başlamıştır. Çocuklu yolcular da zaman ve hız avantajından dolayı, havacılık ... -
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 ... -
Detection of Toxic Gases Using Flexible Metamaterial Absorber at Terahertz Frequencies
(Osmaniye Korkut Ata Üniversitesi, 2023)The development of technology implies the release of several gases to the environment. These gases, especially toxic ones, have many negative effects on human life and cause many diseases that will adversely affect human ... -
The Determinants of Airline Operational Performance: An Empirical Study on Major World Airlines
(Sosyoekonomi, 2020)The air transport industry is a dynamic sector and operates in a dynamic environment. This situation leads to intense competition among airlines and, consequently, to a search for new methods to improve the operational ... -
Determinants of Capital Structure: Empirical Evidence From Traditional Airlines
(Uluslararası İktisadi ve İdari İncelemeler Dergisi, 2018)The purpose of this study is to examine the factors that define capital structure of airlines with traditional business model by taking into account the capital structure theories. In line with this purpose, 31 airline ... -
Determinants of Dividend Payout Policies: Evidence from Airline Industry
(Journal of Aviation, 2021)The goal of this research is to uncover the financial factors that influence airline dividend payment policies. The panel data analysis method was used to analyze the financial data of 16 airlines from 2009 to 2018. In the ... -
Determinants of Financial Risk: An Empirical Application on Low-Cost Carriers
(Sciendo, 2019)The airline industry has entered a rapid development and transformation process, especially after the Second World War. In this process, it is seen that the market structure changed and many private airlines were established. ... -
Different Autopilot Systems Design For a Small Fixed Wing Unmanned Aerial Vehicle
(Avrupa Bilim ve Teknoloji Dergisi, 2019)The aim of this study is to design an autopilot system for Unmanned Aerial Vehicle (UAV) in a small size and to compare the efficiency of the systems designed with different methods. For this purpose, linearized equations ... -
Dünya Pazarlarında Piyasa Yapısı: Havayolu Sektöründe Rekabetin Ampirik Analizi
(2018)Bu çalışmada dünyada havayolu pazarının piyasa yapısı ve rekabet düzeyiincelenmektedir. Bu kapsamda dünyadaki havayolu şirketlerinin belirli piyasalardaki pazarpaylarından hareketle piyasa yapısı ve rekabet düzeyinin tespit ... -
Dünyadaki Düşük Maliyetli Havalimanlarının Performanslarının Veri Zarflama Analiziyle Değerlendirilmesi
(Erciyes Üniversitesi İktisadi ve İdari Bilimler Fakültesi Dergisi, 2021)Bu çalışmanın amacı dünyada düşük maliyetli iş modeli uygulayan havalimanlarının performansının analiz edilmesidir. Çalışma kapsamında dünyanın değişik bölgelerinde, düşük maliyetli iş modelini uygulayan 8 havalimanının ... -
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 ...
