نتایج جستجو برای: eco friendly technology
تعداد نتایج: 517957 فیلتر نتایج به سال:
The upgrade recycling of cast-iron scrap chips towards β-FeSi₂ thermoelectric materials is proposed as an eco-friendly and cost-effective production process. By using scrap waste from the machining process of cast-iron components, the material cost to fabricate β-FeSi₂ is reduced and the industrial waste is recycled. In this study, β-FeSi₂ specimens obtained from cast iron scrap chips were prep...
maltose as an efficient, available, cheap and eco-friendly catalyst has been applied for the synthesis of 3,4,5-substituted furan-2(5h)one derivatives via a one-pot three-component reaction of arylamines, aromatic aldehydes and dialkyl acetylenedicarboxylates in water. this method has notable advantages in terms of simple workup, no need for column chromatography, short reaction time and high y...
4-dodecylbenzenesulfonic acid (dbsa) has been shown to be an efficient, mild, green, stable and chemoselective brønsted acid catalyst for the synthesis of 1, 1-diacetates (acylals) of aldehydes under solvent-free conditions. the mild condition, eco-friendly, excellent yields, short reaction times and using an easily available, inexpensive and reusable catalyst are important features of this met...
Electricity companies around the world are constantly seeking ways to provide electricity more safely and efficiently while reducing negative impact on environment. Mineral oils have been most popular transformer insulation, having excellent electrical insulating properties, but many problems such as high flammability, significant cleaning problems, toxic fish wildlife. This paper presents an a...
This paper presents a corpus-based analysis of printed eco-friendly car advertisements in English line with the growing consumer interest environmental issues and development green advertising. The aim research is threefold: 1) to unveil content cognitive operations (for purpose this research, metonymy, metonymic chain, metaphoric amalgam metaphor) underlying ads their modes representation; 2) ...
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