Following the popularity of smart phones and the development of mobile Internet, the demands for accurate indoor positioning have grown rapidly in recent years.Previous indoor positioning methods focused on plane locations on a floor and did not provide accurate floor positioning.In this paper, we propose a method that uses multiple barometers as r
The paper presents results of comparative analysis of optical signals emitted by partial discharges occurring on three types of high voltage insulators made of porcelain.The research work consisted of diagnosis of the following devices: a long rod click here insulator, a cap insulator, and an insulating cylinder.For optical signal registration a sp
For single-rotor helicopters there are special flight modes, when tail rotor (TR) is under significant inductive influence of vortical wake of main rotor (MR).Inductive influence of vortical wake of MR can provoke essential changes in flowing of TR and its aerodynamic characteristics comparing to isolated rotor.In this case increase of tail rotor p