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Year 2024 Volume 5 Issue 1
Evaluation of digital solutions for passenger attitudes towards health measures at Dalaman airport during COVID-19 period
Tarih: 30-06-2024 | Yazar(lar): Şeyma Kaplan, Emine Seher Yener, Zeynep Yılmaz, Ozan Öztürk
Abstract (Özet)
During the COVID-19 pandemic, the Ministry of Transport and Infrastructure and airline companies implemented various measures to prevent the spread of the virus and reduce the risk of transmission. Among the various measures implemented, those utilizing digital technologies to minimize contact between passengers at airport terminals and ground services personnel have been particularly noteworthy. Self-service technologies not only enhance time and space efficiency but also minimize interpersonal contact. This research aims to evaluate the positive impact of COVID-19 measures implemented at Dalaman Airport on passenger satisfaction and to examine the role of digital technologies in this effect. To this end, face-to-face surveys were conducted with at least 415 passengers at Dalaman Airport between October and November 2023. The data obtained were analyzed using the SPSS program to determine the effects of COVID-19 measures and digital technologies on passenger satisfaction. The research factor analysis, reliability analysis, correlation, and regression analyses to examine the relationships between satisfaction, digitization, and measures reducing discomfort, revealing significantly positive relationships. As a result, this research recommends airport management to realign technology investments and customer service policies centered on passenger satisfaction. Digitalisation efforts can facilitate passengers to better adapt to new norms and provide a safer and more comfortable travel experience. The research also highlights that future studies with generalized findings across a wider range of airports and passenger demographics will develop a more comprehensive understanding of how digital technologies can be used more effectively in the aviation sector.
Non-destructive testing methods commonly used in aviation
Tarih: 30-06-2024 | Yazar(lar): Özlem Ulus, Furkan Eren Davarcı, Elif Eren Gültekin
Abstract (Özet)
Non-Destructive Testing (NDT) methods play a pivotal role in ensuring the safety and reliability of aircraft in the aviation industry. This article provides a comprehensive overview of the NDT techniques commonly employed in aviation to assess the structural integrity and performance of aircraft components and materials without causing any damage. The article discusses the significance of NDT in aviation, highlighting the importance of early defect detection, maintenance cost reduction, and enhanced operational safety. It delves into various NDT methods, such as ultrasonic testing, eddy current testing, radiographic inspection, magnetic particle testing, and dye penetrant testing, explaining their principles and applications. In addition, in this article, the advantages and disadvantages of NDT methods and which methods are used in which part of the aircraft are mentioned. Understanding these NDT methods is crucial for aviation professionals, as they contribute to the continued airworthiness of aircraft, ensuring that passengers and crew can travel safely and confidently.
Thermoplastic polyurethane composites for electromagnetic interference shielding
Tarih: 30-06-2024 | Yazar(lar): Ümmühan Kaya, Hülya Kaftelen Odabaşı
Abstract (Özet)
Electromagnetic pollution has been a negative effect of the interest in electronic devices with advancing technology. Therefore, electromagnetic interference (EMI) shielding materials have become important. Although metals are mostly preferred due to their conductive properties, due to their disadvantages such as high density and low corrosion resistance, interest in lightweight, high strength and high corrosion resistance polymers composites has increased. Thermoplastic composites are used in a wide range of applications due to their light weight, easy processing and recyclability. Based on the principle of electromagnetic interference shielding, many complex factors have been found to have an influential role in achieving the desired shielding efficiency for conductive polymer composites. These include the type, morphology, amount and dispersion of nanoparticles, which greatly affect the conductive properties of conductive polymer composites. Surface conductive layer or high-content metal-filled products provide good electromagnetic interference shielding, mainly through reflection, but they can often lead to high reflection, resulting in strong secondary electromagnetic radiation. Thus, reflection-based EMI shielding can only prevent interference by shielding material, but cannot effectively control and eliminate lost electromagnetic waves. Therefore, eliminating secondary electromagnetic wave pollution can be achieved by adding magnetic nanoparticles and carbon-based (such as carbon fiber) hybrid materials to support the absorption property of conductive polymer composites. Here, magnetic nanoparticles provide magnetic loss while carbon nanofillers contribute to dielectric loss, which can more effectively dissipate electromagnetic waves through absorption. Another important factor affecting the shielding efficiency is the influence of the structural properties of the polymer composites (bulk or 3D porous structure).Polyurethane thermoplastics are important in terms of EMI shielding because they are flexible, lightweight, economical and can be produced with pore structures in three dimensions. By adding carbon-based materials such as graphene, carbon black, carbon fibre to the polymer matrix, mechanical, electrical conductivity, and thermal properties are improved. Therefore, carbon-based materials can be considered as a potentially effective option for blocking electromagnetic interference in electronic devices.