نتایج جستجو برای: greener technique
تعداد نتایج: 613308 فیلتر نتایج به سال:
The increasing demand for sustainable development has led companies to report their GHG (greenhouse gas) emissions. The calculation of air cargo transport emissions and their environmental impact is currently based on average values and estimations, leading to highly uncertain results, which are not suitable for GHG accounting and decision support. We therefore propose a primary data collection...
This paper presents a systematic procedure for the optimization of machining parameters such as cutting speed, feed rate, nose radius, edge radius, and rake angle to reduce specific material removal energy and improve energy efficiency in the hard turning of AISI 4140 steel. A simulation approach was applied in conjunction with the design of experiment (DOE), mathematical approximation with a m...
Catalytic reactions account for approximately 85% of all chemical reactions, and they are particularly significant in environmental science [...]
An efficient, eco-compatible diversity-oriented synthesis (DOS) approach for the generation of library of sugar embedded macrocyclic compounds with various ring size containing 1,2,3-triazole has been developed. This concise strategy involves the iterative use of readily available sugar-derived alkyne/azide-alkene building blocks coupled through copper catalyzed azide-alkyne cycloaddition (CuAA...
Traffic light plays an important role in the urban traffic management. Therefore, it is necessary to improve the traffic controller for effective traffic management and better traffic flow leading to greener environment. In this paper, an advanced and intelligent traffic light controller is proposed, utilising the fuzzy logic technology and image processing technique. A fuzzy logic control has ...
The design of efficient synthetic green strategies for the selective modification of cyclodextrins (CDs) is still a challenging task. Outstanding results have been achieved in recent years by means of so-called enabling technologies, such as microwaves, ultrasound and ball mills, that have become irreplaceable tools in the synthesis of CD derivatives. Several examples of sonochemical selective ...
Traffic light plays an important role in the urban traffic management. Therefore, it is necessary to improve the traffic controller for effective traffic management and better traffic flow leading to greener environment. In this paper, an advanced and intelligent traffic light controller is proposed, utilising the fuzzy logic technology and image processing technique. A fuzzy logic control has ...
It is well known that small biomaterial particles can lead to superior properties demanded by advanced applications in tissue engineering. Electrospraying has been considered as a promising approach to prepare fine particles, but reducing the particle size during such jetting process is always challenging. This is because the size of the as-sprayed particles is always limited by the device outl...
HANNAH Greener of Winlaton, near Newcastle in the United Kingdom, died more than 150 yr ago, on January 28, 1848, after receiving a chloroform anesthetic for the removal of a toenail. She was a healthy 15-yr-old girl who had successfully undergone an anesthetic with diethyl ether several months before for the removal of another toenail. Hers was the first death (fig. 1) attributed to the new an...
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