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Modular annular photocatalytic membrane reactor for the degradation of micropollutants: Design and application

open access: yesMethodsX
This study presents the Modular Annular Photocatalytic Membrane Reactor (MAPMR), designed to address key challenges in conventional photocatalytic reactors, such as uniform light distribution, efficient photocatalyst recovery, and a precise control over ...
Michael S. Leupold   +6 more
doaj   +6 more sources

Revisiting the Boundary Value Problem for Uniformly Transversely Loaded Hollow Annular Membrane Structures: Improvement of the Out-of-Plane Equilibrium Equation

open access: yesMathematics, 2022
In a previous work by the same authors, a hollow annular membrane structure loaded transversely and uniformly was proposed, and its closed-form solution was presented; its anticipated use is for designing elastic shells of revolution.
Qi Zhang   +3 more
doaj   +3 more sources

A Closed-Form Solution of Prestressed Annular Membrane Internally-Connected with Rigid Circular Plate and Transversely-Loaded by Central Shaft

open access: yesMathematics, 2020
In this paper, we analytically dealt with the usually so-called prestressed annular membrane problem, that is, the problem of axisymmetric deformation of the annular membrane with an initial in-plane tensile stress, in which the prestressed annular ...
Zhi-Xin Yang   +4 more
doaj   +3 more sources

Effects of docosahexaenoic acid on annular lipid fluidity of the rat bile canalicular plasma membrane

open access: yesJournal of Lipid Research, 2001
The role of docosahexaenoic acid (DHA) in the fluidity of the annular lipid regions and their associated membrane-bound proteins is still not as well understood as that in the global (bulk) lipid regions.
Michio Hashimoto   +5 more
doaj   +3 more sources

Nonlinear vibrations and instabilities of a stretched hyperelastic annular membrane

open access: yesInternational Journal of Solids and Structures, 2012
AbstractThe mathematical modeling for the nonlinear vibration analysis of a pre-stretched hyperelastic annular membrane under finite deformations is presented. The membrane is initially fixed along the inner boundary and then subjected to a uniform radial traction along its outer circumference and fixed along the outer boundary.
Paulo Batista Gonçalves
exaly   +2 more sources

Improved Power Series Solution of Transversely Loaded Hollow Annular Membranes: Simultaneous Modification of Out-of-Plane Equilibrium Equation and Radial Geometric Equation

open access: yesMathematics, 2023
The ability to accurately predict the shape of a transversely loaded hollow annular membrane is essential to the design of bending-free hollow annular shells of revolution, which requires a further improvement in the hollow annular membrane solution to ...
Xiao-Ting He, Fei-Yan Li, Jun-Yi Sun
doaj   +1 more source

A Refined Closed-Form Solution for the Large Deflections of Alekseev-Type Annular Membranes Subjected to Uniformly Distributed Transverse Loads: Simultaneous Improvement of Out-of-Plane Equilibrium Equation and Geometric Equation

open access: yesMathematics, 2022
The Alekseev-type annular membranes here refer to annular membranes fixed at outer edges and connected with a movable, weightless, stiff, con-centric, circular thin plate at inner edges, which were proposed originally by Alekseev for bearing centrally ...
Bo Li   +4 more
doaj   +1 more source

A Further Theoretical Study of Capacitive Pressure Sensors Based on Thin Film Elastic Deflection and Parallel Plate Capacitor: Refined Closed-Form Solution and Numerical Calibration

open access: yesSensors, 2022
The capacitive pressure sensor based on thin film elastic deflection and a parallel plate capacitor uses a non-conductive elastic annular thin film centrally connected to a conductive, rigid, flat, concentric-circular thin plate as a pressure sensing ...
Ying Guo   +4 more
doaj   +1 more source

Frequency analysis of composite annular membranes [PDF]

open access: yesJournal of Applied Mathematics and Computational Mechanics, 2012
In this paper, the free vibration of an annular membrane consisting of three con- centric segments is considered. The frequency equation and mode shapes are obtained by the use of the Green's function method. A numerical example to vibration problem of non- homogeneous annular membrane is presented.
Izabela Zamorska   +2 more
openaire   +1 more source

Dynamic stability of rotating viscoelastic annular sector plate

open access: yesJournal of Low Frequency Noise, Vibration and Active Control, 2021
The dynamic characteristics and stability of rotating viscoelastic annular sector plates are investigated. Based on the thin plate theory and the two-dimensional viscoelastic differential constitutive relation, the differential equation of transverse ...
Yongqiang Yang, Zhongmin Wang, Yan Wang
doaj   +1 more source

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