A dual circularly polarized (CP) omnidirectional antenna based on slot array in coaxial cylinder structure is presented in this paper.It is constructed by perpendicular slot pairs around and Guasha along the axis of the coaxial cylinder to realize the omnidirectional CP property, and two ports are assigned in its two sides as left hand circularly p
The work reveals an epistemological approach, from which it is understood that the postgraduate education of teachers of Technical and Vocational Education as an intentional process has to become a conscious action of systematized development of pedagogical professional book knowledge that is tempered with the demands of the Contemporaneity, its pr
Jakarta, the capital city of Indonesia, experiences flood which causes activities disruption and losses almost every year.Many studies have been done to mitigate the impact of flooding.Most of them focus on reducing the inundated area Jerky as an indicator of the effectiveness of flood control.This study aims to evaluate the effectiveness of severa
Accurate prediction of loads on mechanical couplings is Super II Pump Parts crucial in assessment of loads on coupled structures and in optimization of mechanical coupling design.In this paper, a contact element model is introduced to represent prismatic joints.A twofold pushing convoy in shallow water was taken for time domain numerical simulation