نتایج جستجو برای: polysulfone
تعداد نتایج: 896 فیلتر نتایج به سال:
Pressure retarded osmosis has the potential to produce renewable energy from natural salinity gradients. This work presents the fabrication of thin-film composite membranes customized for high performance in pressure retarded osmosis. We also present the development of a theoretical model to predict the water flux in pressure retarded osmosis, from which we can predict the power density that ca...
The separation of dissolved gas including dissolved oxygen can be used in breathing for a human under water. When one is suddenly wrecked or meets a tsunami, one is instantly drowned and cannot breathe under water. To avoid this crisis, when we meet waves, the dissolved gas separated from water by wave is used, while air can be used to breathe when we are about to escape from water. In this the...
The exposure of blood to an artificial surface such as the haemodialysis membrane results in the nearly instantaneous deposition of a layer of plasma proteins. The composition of the protein layer profoundly influences all subsequent events, and to a large extent determines the biocompatibility of the biomaterial. In the present study, we examine the protein adsorption capacity and coagulation ...
Fouling has become the main problem in long-term application of ultrafiltration (UF) membrane for water and wastewater treatment, significantly reducing productivity. In this paper, fouling on polysulfone-based was analyzed using Hermia’s model during textile treatment. The UF been prepared by blending polysulfone (PSf), acetone, PEG400 DMAc, with ZnO nanoparticles at a concentration 1% weight ...
1.1 Materials Chromium nitrate nonahydrate (Cr(NO3)2·9H2O, 99%) and hydrofluoric acid (analysis grade) were obtained from Acros Organics. Benzene-1,4-dicarboxylic acid (H2BDC, 99%) was acquired from Aldrich. Dichloromethane (DCM, >99.9%), N,N-dimethylformamide (DMF, 99.9%) and Ethanol (99.9%) were purchased from Prolabo. Polysulfone (PSF) Ultason S 6010 Natural was provided by BASF AG, Ludwigsh...
In recent years, SunSmart campaigns have emphasized the importance of the use of shade as a strategy in the reduction of human exposure to solar UV radiation (UVR), particularly in early life with the provision of shade in schools. Trees can play an important role in shade provision, either as the main shade provider or to augment shade structures and increase UVR protection provided to the gen...
Passage of a 10-keV electron beam through bundle hollow polysulfone fiber with an inner channel diameter 160 ± 60 µm was studied. The dependence the that passed channels on tilt angle respect to incident axis measured. fraction electrons energy loss less than 10% after passing also estimated.
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