A QUASI-STEADY LIFTING LINE THEORY FOR INSECT-LIKE HOVERING FLIGHT.


Mechanical properties and microstructural characteristics of rotary friction welded dissimilar joints of rolled homogeneous armor steel and medium carbon steel

Distinct materials are used for the construction of battle tanks used in defense sectors.The hull and turret of the battle tanks are made up of rolled homogeneous armor steel (also known as armor steel).The inner portions like the driver cabin and control room are covered with medium carbon steel.Hence, the dissimilar joint between these materials

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General Tendencies in the Development of the Electronic Payment Services Market and the Problems of Ensuring the Economic Efficiency of Their Provision

In the context of the evolvement of the digital economy, the use of digital technologies in the financial sector (FinTech) and for the purposes of payment (PayTech) is increasing.The global market of electronic payment services (EPS) is developing intensively, which actualizes the problems of its effectiveness.The aim of the study is: to determine

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