A set of hybrid microstrip patch and semi-circular cavity antennas is introduced. The semi-circular cavity is implemented using Half-mode Substrate Integrated Waveguide (HMSIW) technique. Different shapes of patch include rectangular, semi-circular and equilateral triangular are excited using proximity effect by the circular SIW cavity at its TM010 mode of operation. The whole structures have b...

This paper presents experimental results from the vibration of a polycarbonate beam containing a crack that opens and closes dudng vibration. Several techniques were employed to detect and locate the crack making use of the nonlinearity. “Harmonic mode shapes” proved to be more sensitive to damage than conventional mode shapes. Instantaneous f requency and timefrequency methods also showed clea...

This paper presents a sliding mode control (SMC) for the “full-bridge Buck inverter–DC motor” system when photovoltaic (PV) panel is considered as power supply. The executes trajectory tracking task related to angular velocity of DC motor shaft without need electromechanical sensors. proposed validated through realistic simulation results via Matlab-Simulink. In this regard, constructed by usin...

The mode shape-aided method provides a simple and effective way for cable force determination, which, however, requires accurate parameter identification of the structure. This paper proposes phase-based video motion magnification to process image sequences cable. Digital correlations were engaged measure dynamic displacement–time history, through tracking surface characteristic features Therea...

A unified framework is presented for examining the performance of linear mode filtering algorithms. Two common mode filters, samples of the mode shapes and the pseudo-inverse of the mode shapes, are presented in this framework as a tradeoff between sensitivity to other modes and sensitivity to white noise. The maximum a posteriori mode filter is presented as an alternative which gracefully tran...