In this paper, after analysing deformations of loading ball-bearing it is able to investigate vibrations of rotor-bearing system as the system with non-linear and periodically varying stiffness.The modelling of the systems is depent on properties of the shaft (rigid or flexible) and on measurement techniques for system vibrations (by Bioflavonoids
In this paper, we propose a method for efficient target classification based on the spatial features of the point cloud generated by using a high-resolution radar sensor.The frequency-modulated continuous wave radar sensor can estimate the distance and velocity of a target.In addition, the azimuth and elevation angle of the target can be estimated
Acute porphyrias are a group of rare genetic metabolic disorders, caused by a defect in one of the enzymes involved in the heme biosynthesis, which results in an abnormally high accumulation of toxic intermediates.Acute porphyrias are characterized by potentially life-threatening attacks and, for some patients, by chronic manifestations that negati
The energy absorption of concrete filled, hollow-steel bracing was analyzed respect to geometric and mechanical parameters including the width-to-thickness section ratio, slenderness level, and strength of the steel and concrete.Local buckling and ductility were also investigated with respect to variation in the cross-section.The Elbow Guards infil