نتایج جستجو برای: plastics industry
تعداد نتایج: 198210 فیلتر نتایج به سال:
Increased production rates of plastic and limited disposal methods have fed concerns regarding environmental degradation. Whilst most the focus is on litter marine pollution, greenhouse gas emissions over its value chains are also interest non-trivial at global scale. To quantify warming potential local plastics industry, a lifecycle-based carbon footprint presented encompassing activities such...
How to hide a dimension from view Compacted dimensions are essential ingredients of advanced string theories; the extra dimensions used to describe the world are hidden from view, or compacted. Pendry et al. used concepts of transformation optics, in which metamaterials are designed to produce specific optical properties, to show theoretically that compacted dimensions could be possible in plas...
Much is being written about plastics these days---newspapers are full of stories about the plastic menace, governments are up in arms banning polybags around the country, schools and colleges are launching awareness drives to ban plastics. But they are still around. And will be around for times to come. Not only strewn on the roads or choking drains and rivers, but also inside our homes. Over t...
Three heat resistant cross-linked PVC foam plastics were prepared and their performances were compared with universal cross-linked PVC structural foam. The results show that these three heat resistant foams have higher glass transition temperatures (close to 100 °C) than universal structural foam (83.2 °C). Compared with the universal structural foam, the three heat resistant foams show much hi...
Sadr`aj: Market Overview; Structure and Properties; Brief Description of the Properties of Generic Polymeric Materials; Physical Properties – Characteristic Values – Test Methods and Procedures; Calculation for Structures under Mechanical Load – Examples of Geometrically Simple Structural Parts under Static Loads; Design and Material Consideration for Parts Subjected to Mechanical Loads; Design...
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