نتایج جستجو برای: composite membrane

تعداد نتایج: 508197  

Journal: :The Journal of the Acoustical Society of America 2017
Sankalp Tiwari Anurag Gupta

The effects of air loading on the acoustical properties of tabla, an Indian musical drum, are investigated by idealizing it as a composite membrane backed by a rigid cylindrical cavity. The coupled boundary value problem for membrane vibration and acoustic pressure, assuming acoustic radiations to be the only source of dissipation, is solved using a Green's function method. It is shown that air...

Journal: :Journal of nanoscience and nanotechnology 2016
Sanzhong Xu Xiaoyi Chen Xianyan Yang Lei Zhang Guojing Yang Huifeng Shao Yong He Zhongru Gou

The chitosan/alginate-trace element-codoped octacalcium phosphate/nano-sized bioactive glass (CS/ALG-teOCP/nBG) composite membranes were prepared by a layer-by-layer coating method for the functional requirement of guided bone regeneration (GBR). The morphology, mechanical properties and moisture content of the membranes was studied by scanning electron microscopy (SEM) observation, mechanical ...

Journal: :Journal of materials chemistry. A, Materials for energy and sustainability 2023

A novel acid-base HT-PEM consisting of PI-COOH and OPBI was prepared. The OPBI-50PI-COOH composite membrane delivered superior cell performance durability under low PA uptake due to the continuous hydrogen bond network between PI-COOH.

2011
Joshua M. Spurgeon Michael G. Walter Junfeng Zhou Paul A. Kohl Nathan S. Lewis

The optical absorption, ionic conductivity, electronic conductivity, and gas separation properties have been evaluated for flexible composite films of ionically conductive polymers that contain partially embedded arrays of ordered, crystalline, p-type Si microwires. The cation exchange ionomer Nafion, and a recently developed anion exchange ionomer, poly(arylene ether sulfone) that contains qua...

Journal: :Journal of Tissue Engineering and Regenerative Medicine 2019

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