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Plot. A locksmith with his daughter were added to live in the apartment of a professor, as a matter of "compaction" [ ru] (see "Communal apartment") . After that the apartment is visited by various factory workers and the professor decides to start lecturing in the working club.
15 de jul. de 2022 · Thin film composite (TFC) polyamide (PA) membranes experience compaction at high pressure applications, resulting in the reduction in water permeability. However, the compaction mechanism is still unclear especially for different PA morphologies and substrate structures.
30 de abr. de 2024 · A thin-film composite (TFC) membrane support compaction model based on realistic parameters, incorporating viscoelasticity and Monte Carlo flux calculations, illustrates a trade-off relationship between compressive modulus and transport properties.
15 de dic. de 2021 · Analytical technologies for polymeric membranes, including positron annihilation lifetime spectroscopy (PALS) and time-of-flight secondary ion mass spectrometry (ToF-SIMS), were employed to understand the origin and harmful effects of thin film composite (TFC) reverse osmosis (RO) membrane compaction.
1 de sept. de 2020 · Compaction causes significant support layer deformation. •. PALS and TEM confirm selective layers do not compact irreversibly up to 150 bar. •. Compaction is likely caused by a hydraulic pressure difference across the membrane. •. Decreased support layer surface porosity causes water permeability to decline. Abstract.
25 de ago. de 2016 · (a) The compaction front moves smoothly as the film dries. In contrast, a crack tip ( ) hops in discrete jumps. The film next to the crack tip ( ) delaminates in response to crack propagation...
15 de feb. de 2024 · In this study, we present an all-encompassing compaction model for TFC membranes, applying authentic structural and mechanical varia-bles, achieved by coupling viscoelasticity with Monte Carlo flux calculations based on the resistance-in-series model.
