نتایج جستجو برای: distillation

تعداد نتایج: 8164  

Journal: :Journal of occupational health 2004
Grazyna Bieniek Slawomir Kurkiewicz Tadeusz Wilczok Katarzyna Klimek Longina Swiatkowska Agnieszka Lusiak

The objective of the study is to assess the external and internal exposures to aromatic hydrocarbons in the tar and oil naphthalene distillation processes at a coke plant. 69 workers engaged as operators in tar and oil naphthalene distillation processes and 25 non-exposed subjects were examined. Personal analyses of the benzene, toluene, xylene isomers, ethylbenzene, naphthalene, indan, indene ...

Medicinal plante Borazambol with the scientific name of Perovskia abrotanoides Karel. belongs to the family Lamiaceae. It is growing wild in the margin of mountainous roads of arid and cold climate of north Iran. It is for a long time that indigenous people by different methods in traditional medicine use its products in preventing and curing diseases. In this research, essential oils of Perovs...

Journal: :CoRR 2015
David Lopez-Paz Léon Bottou Bernhard Schölkopf Vladimir Vapnik

Distillation (Hinton et al., 2015) and privileged information (Vapnik & Izmailov, 2015) are two techniques that enable machines to learn from other machines. This paper unifies the two into generalized distillation, a framework to learn from multiple machines and data representations. We provide theoretical and causal insight about the inner workings of generalized distillation, extend it to un...

2013
Priyanka Gautam Piyush Pratap Singh Animesh Mishra Abhishek Singh Shakti Nath Das Shakti Nath

Reactive distillation processes couple chemical reactions and physical separations into a single unit operation. The ethyl acetate production by esterification reaction is equilibrium limited and is suitable to be carried out in a distillation column. In the present work, a reactive distillation column for the production of ethyl acetate is simulated using Aspen Plus. The component compositions...

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

the use of natural products as medicinal agents presumably predates the earliest recorded history. ocimum sanctum l., is a plant which is used in several traditional medicine systems to cure various diseases. in this study aerial parts of ocimum sanctum were collected on august 2014 from shahr-e-rey in iran. fresh and dry partsof plants essential oils were extracted with hydro-distillation and ...

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

the genus ocimum l. belonging to family of lamiaceae is widely distributed in iran, ocimum sanctum l. is described in many medicinal properties and a wide therapeutic range. it is used specially in the management of cough, ashtma, fever and common cold. in this research, samples were collected from shahr-e-rey, on august 2013, then essential oils were extracted by  hydro-distillation and steam ...

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...

2014
Essam Natsheh Zhen-Yu Zhao

This paper projected fuzzy logic control based intention has been protruded for a methanol water arrangement of bubble cap distillation column. In this distillation column is extremely nonlinear and conventional control is controlling the composition is a difficult task. Fuzzy inference system (FIS) and fuzzy rule based system (FRBS) is designed to govern the manipulate variable (reflux ratio) ...

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