نتایج جستجو برای: deteriorate fabric
تعداد نتایج: 16512 فیلتر نتایج به سال:
Deformability of a textile fabric is studied experimentally using a) friction test, b) out-of-plane compression, and c) bending. These tests reveal that a grafting of the fabric with carbon nano-fibres can significantly deteriorate its deformability. Therefore an optimal CNF mass fraction should be chosen for a particular production case, to obtain a compromise between improved strength and dec...
the iranian government has placed new emphasis on urban renewal through participatory approaches in recent years. the main target areas are called deteriorated urban fabrics, characterized by micro-lots, impenetrability, and lack of sustainability. in tehran, renovation of deteriorate urban fabrics has been initiated through dedicated neighborhood facilitation offices. this paper analyzes the a...
today, we see that despite the plans and decisions made about the historical fabric, the people are very faintly seen and conservation the historic fabric of urban is one of the main concerns management urban in the absence of efficient management and lack of attention to the needs of local people, the historical fabric urban is destroyed. in this article are examined ways other than physical m...
Due to the ongoing pandemic, various types of facemasks such as certified N-95, non-woven fiber and fabric/textile masks are being used an essential protective measure reduce risk spread SARS-Cov-2 virus. The aerosols size-dependent filtration efficiency breathing resistance these were tested before after sterilization by five different methods for two flow rates (20 90 L/min) conditions corres...
This study proposes and tests two hypotheses concerning the effects of hotel industry operations on air quality based data 26 major tourist cities in China from 2002 to 2017. The empirical analyses take steps. In first step, panel regression test results reveal that (measured by sales revenue) significantly raise value particulate matter (PM) 2.5 (the key indicator quality), supporting hypothes...
here, in situ synthesis of nano zinc oxide, along with aminolysis of polyester fabric, has simultaneously been carried out by using triethanol amine (tea) and zinc acetate. the zno nano particles (nps) were formed and stabilized on the fabric surface by amine compound at 130 °c for 1 h. the synthesis of nano zno particles on the polyester fabric were confirmed by x-ray diffraction (xrd) pattern...
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