Chatter is an obstacle for achieving high-quality machining process and high production rate in industries.Chatter is an unstable self-exciting phenomenon that leads to tool wear, poor surface finish, and downgrade the milling operations.A novel active control strategy to attenuate the chatter vibration is proposed.PD/PID controllers in combination
Primary hydatid disease of spine is rare and spinal hydatitosis constitute only 1% of all hydatitosis.We report a case Support Cushions of recurrent primary intraspinal extradural hydatid cyst of the thoracic region causing progressive paraparesis.The patient was operated 16 years ago for primary spinal hydatid disease involvement and was instrumen
The study presented in this paper was undertaken in response to two instances of unexpected blade breakage in the cutting blade used in a Carton Wrap machine (CW).Failure of the Al7075 alloy blade occurred at an indentation during typical operational loading conditions.Subsequent metallographic examinations of the fractured samples confirmed that b
This study compared the wear of nanohybrid and microfilled composite restorative material in occlusal restoration of first permanent molar tooth.In total, 60 first permanent molar teeth having carious lesion without any clinical and radiological indication of pulpal involvement, removal of carious dental hard tissues was performed using round carbi
Since facing international backlash from the West over the situation in Ukraine, Russia has had to focus on new international agreements.In retaliation for NATO expansion towards the east, Russia has sought baby accessories to create these agreements in Latin America.Russia has specifically sought greater ties with Cuba, Nicaragua, Venezuela, Brazi