نتایج جستجو برای: air filtration
تعداد نتایج: 242582 فیلتر نتایج به سال:
Membrane filtration is a vital industrial process, with applications including air purification and blood filtration. In this paper, we study the optimal design for concertinaed membrane composed of angled porous membranes dead-ends. We examine how filter performance depends on angle, position, thickness, permeance membrane, through combination numerical asymptotic approaches, latter in limit s...
The filtration of air has attracted increasing attention during recent waves viral infection. This review considers published literature regarding the usage cellulose-based materials in devices, including face masks. Theoretical aspects are reviewed, leading to models that can be used predict relationship between structural features filter media and collection efficiency for different particle ...
Abstract The development of new materials for air filtration and particulate matter (PM) pollution is critical to solving global environmental issues that threaten human health accelerate the greenhouse effect. In this study, a novel electrospun polystyrene-SiO 2 nanoparticle (PS-SNP) fibrous membrane was explored by single-step strategy obtain composite multi-layered filter masks. addition, pe...
Introduction: Air health is an important environmental issue which has been endangered in recent years due to application of advanced technologies used for improving the financial welfare and relative prosperity of humans. Making use of pollution control systems and refinement methods are some general ways to control environmental pollution. Since several different techniques of control, each w...
شپشه ی دندانه دار برنج oryzaephilus surinamensis l. یکی از مهمترین آفات برنج در طول دوره انبارداری این محصول می باشد. با توجه به ماهیت این آفت، کنترل آن همواره سخت بوده و بکارگیری حشره کش ها و اسانس های گیاهی از گیاهان دارویی با خاصیت دورکنندگی در منابع مختلف علیه این آفت گزارش شده است. ما خاصیت کشندگی و دورکنندگی به لیمو aloysia citriodora، زنیان carum copticum ،لعل کوهستان oliveria decumbens،...
This concern also applies to filter components and housings. Pall recognizes the importance of proper material selection, cleanliness standards, housing surface preparation, and specialized manufacturing processes with regard to product quality. Our knowledge allowed us to introduce practices that have become industry standards. All Pall Gaskleen filter assemblies are packaged in special double...
This concern also applies to filter components and housings. Pall recognizes the importance of proper material selection, cleanliness standards, housing surface preparation, and specialized manufacturing processes with regard to product quality. Our knowledge allowed us to introduce practices that have become industry standards. All Pall Gaskleen filter assemblies are packaged in special double...
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