Vibrational behaviour of symmetric angle-ply layered circular cylindrical shell filled with quiescent fluid is presented. The equations of motion of cylindrical shell in terms of stress and moment resultants are derived from the first order shear deformation theory. Irrotational of inviscid fluid are expressed as the wave equation. These two equations are coupled. Strain-displacement relations and stress-strain relations are adopted into the equations of motion to obtain the differential equations with displacements and rotational functions. A system of ordinary differential equation is obtained in one variable by assuming the functions in separable form. Spline of order three is applied to approximate the displacement and rotational functions, together with boundary conditions, to get a generalised eigenvalue problem. The eigenvalue problem is solved for eigen frequency parameter and associate eigenvectors of spline coefficients. The study of frequency parameters are analysed using the parameters the thickness ratio, length ratio, angle-ply, properties of material and number of layers under different boundary conditions.
With the increasing of online marketplaces, online platform must come out with the solutions or ways in order to engage their relationship with customer. Hence, this study aims to examine the roles of e-service quality of online platform in customer loyalty. Convenience sampling technique was used, and data were collected using questionnaires. A sample of 248 respondents among final year students of Universiti Malaysia Kelantan, Pengkalan Chepa were selected. From the obtained results, study showed that there is a significant relationship between independent variables; reliability and security in Shopee platform towards the customer loyalty, respectively. With this finding, it can help and provide the marketers in terms of e-service quality to develop the customer engagement for the sake of customer loyalty. Therefore, the sustainability of the business can be maintained
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