Abstract Key issues for membrane technology in harvesting microalgae are to reach high fluxes and alleviate fouling by microalgal cells extracellular organic matter. To achieve this goal, negatively charged patterned membranes were prepared from polysulfone/sulfonated polysulfone (PSf/sPSf) blends using a spray-modified phase inversion method, the effect of sPSf on morphology filtration perform...

A sound signal is transmitted to the cochlea through vibration of the middle ear that induces a pressure difference across the cochlea’s elastic basilar membrane. In an alternative pathway for transmission, the basilar membrane can also be deflected by vibration of the cochlear bone, without participation of the middle ear. This second pathway, termed bone conduction, is increasingly used in co...

Abstract In this paper, a linear relationship between the frequency of membrane structures and their inner tension stress has been studied. The analytical relationships vibration were obtained, results verified by experiment finite element simulations.

In this project we present two mathematical models for the human tympanic membrane. The eardrum can be viewed as an example of the vibrating drum problem. In the first model, we treat the tympanic membrane as a rectangular region. In the second model the tympanic membrane is considered as a disk. Both models use a wave equations. We study the impact of changes in the membrane tension related to...

In this study, we present a global Fourier mode decomposition framework for unsteady fluid–structure interaction. We apply the to isolate and extract aeroelastic modes arising from coupled three-dimensional fluid–membrane system. investigate frequency synchronization between vortex shedding structural vibration via analysis. explore role of flexibility in selection perform systematic comparison...

This paper proposes a new technique based on double parametric form of fuzzy numbers to handle the uncertain vibration equation for very large membrane for different particular cases. Uncertainties present in the initial condition and the wave velocity of free vibration are modelled through Gaussian convex normalised fuzzy set. Using the single parametric form of fuzzy number, the original fuzz...