نتایج جستجو برای: distillation system

تعداد نتایج: 2237763  

The composition of the essential oils of Teucrium chamaedrys L. belongs to the family Lamiaceae, It is growing wild in the margin of mountainous roads of arid and cold climate of north Iran. In this research, essential oils of T. chamaedrys, extracted and measured at the different location by different methods of distillationand then were analyzed by GC and GC/MS. Investigation and comparison o...

2000
Sta an Larsson Lena Santamarta Arne Jonsson

Distilled dialogues, i.e. re-written natural dialogues, are a useful complement to dialogues collected in Wizard of Oz-experiments or in natural settings for development of dialogue systems. However, the distillation process itself also provides insights on human-computer interaction and on properties of dialogue systems. In this paper we present the distillation process, including how the guid...

Journal: :JOURNAL OF CHEMICAL ENGINEERING OF JAPAN 1992

Journal: :journal of medicinal plants and by-products 0

tanacetum parthenium l. known as feverfew is a medicinal herb which is found in many old gardens. it has been used in folk medicine for reducing fever. feverfew is a member of the daisy family; it is used primarily to prevent migraine headaches and to treat rheumatoid arthritis.it hasa colorless essential oil that contains one or more of the sesquiterpene lactones as active principle. tanasetum...

2012
Douglas C. White

The U.S. Dept. of Energy estimates that there are more than 40,000 distillation columns in North America, and that they consume about 40% of the total energy used to operate plants in the refining and bulk chemical industries (1). Improving the energy efficiency of this unit operation, therefore, is important to achieving overall plant energy savings. Reducing the energy consumption of distilla...

2014
I. D. Gil L. C. García G. Rodríguez

Extractive distillation is an alternative for ethanol dehydration processes that has been shown to be more effective than azeotropic distillation and, in close proximity, to be very competitive against the process that uses adsorption with molecular sieves. Glycols have been shown to be the most effective solvents in extractive distillation, mainly ethylene glycol and glycerol. In this work, an...

2002
Xiaoyu Wang Hongwei Wu Li Wei Aoying Zhou

Topic distillation is the process of finding representative pages relevant to a given query. Well-known topic distillation approaches such as the HITS algorithm have shown to be useful in identifying high quality pages of the most popular topic within a query specific graph of hyperlinked documents. Many succeeding researchers focus on augmenting HITS with further content analysis to alleviate ...

Journal: :Journal of Sustainable Development of Energy, Water and Environment Systems 2014

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