نتایج جستجو برای: friendly benefits of organic system
تعداد نتایج: 21359707 فیلتر نتایج به سال:
in this thesis, a new optically active poly(amide-imide) (pai) was synthesized by the indirect polycondensation reaction of the l-phenylalanine based diacid chloride and 4,4?-diaminodiphenylether in the presence of triethylamine in n-methyl-2-pyrrolidone. the formation of pai was confirmed by ftir, 1h nmr and elemental analysis. in next step, the surface of titanium dioxide (tio2) nanoparticles...
To reverse the global epidemic of physical inactivity that is responsible for more than 5 million deaths per year, many groups recommend creating "activity-friendly environments." Such environments may have other benefits, beyond facilitating physical activity, but these potential co-benefits have not been well described. The purpose of the present paper is to explore a wide range of literature...
Downstream companies in chocolate supply chains are increasingly engaged improving the sustainability of cocoa production, which requires a multidimensional understanding farms' performance. However, prior research has insufficiently addressed multiple dimensions production or interrelationships between dimensions. This study explores farm using our comprehensive data set 395 farms Ecuador and ...
An eco-friendly "on-water" protocol for efficient catalyst-free synthesis of the Hantzsch dihydropyridines from aryl, heteroaryl, alkyl, and vinylogous aldehydes has been developed with minimum auxiliary substances, toxic reagents, organic solvents, and disposal problems.
The versatile nucleophilic organic catalysts N-heterocyclic carbenes (NHCs) have been shown to effectively mediate the transesterification of phosphorus esters under mild conditions; user-friendly imidazolium salts can also be employed as pre-catalysts.
Two simple, eco-friendly and efficient phase-selective gelators were developed for instant (<45 s) gelation of oil (either commercial fuels or pure organic liquids) from an oil-water mixture at room temperature to combat marine oil spills.
The C-C bond formation is an important reaction in organic synthesis to obtain value-added intermediates. Therefore, in this paper an attempt has been made to accelerate the Henry reaction (C-C bond formation) between aryl aldehydes and nitromethane using less expensive whole cell biocatalyst, baker’s yeast (BY). The scope of the methodology was also tested for the heteryl aldehyde i.e. 2-chlor...
As people become more connected electronically, the ability to achieve a highly accurate automatic personal identification system is more critical. Biometric technology is a way to achieve fast, user-friendly authentication with a high level of accuracy. This presentation will highlight some of the benefits and the few limits of using biometrics for authentication. Emerging applications, both w...
This study aims to design an eco-friendly resort based on organic architecture approach Asu Island, Sirombu District, West Nias Regency, North Sumatra Province. The with architectural create a space that can harmonize the indoor outdoor and provide experience close nature for users. In more detail, of resorts Island meet tourist accommodation needs, facilitate attention tourists, analyze energy...
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