全部文献期刊学位论文会议报纸专利标准年鉴图书|学者科研项目
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作者:Shekher Das , Sapna Sharma , Ratna Choudhury
来源:[J].Energy(IF 3.651), 2002, Vol.27 (4), pp.405-414Elsevier
摘要:Abstract(#br)The effect of blending different biomass material with Indian non-coking coal is investigated. Non-coking coal from Western Coalfields Limited (WCL), Nagpur, India with high volatile matter was used in the experiment. The idea behind this paper was to produce reasona...
作者:A.K. Bhaktavatsalam , Ratna Choudhury
来源:[J].Energy(IF 3.651), 1995, Vol.20 (12), pp.1247-1250Elsevier
摘要:Abstract(#br)The specific energy consumption in the Indian steel industry is high compared to that in advanced countries. Data for four integrated steel plants in India have been analysed. The coals used are of much inferior quality. Experiments were conducted for selective remov...
作者:Ratna Choudhury , Tanusree Mandal
来源:[J].Petroleum Science and Technology(IF 0.3), 1990, Vol.8 (9), pp.1021-1036Taylor & Francis
摘要:The role played by the catalyst in the mehhanol-to-gasoline process under varying conditions is significant. The mobil ZSM-5 catalyst yielded dimethyl ether as a major product in earlier experiments conducted in the Chemical Engineering Department. This prompted us to ascertain t...
作者:Ratna Choudhury , Ritu Singh
来源:[J].Petroleum Science and Technology(IF 0.3), 1993, Vol.11 (5-6), pp.733-749Taylor & Francis
摘要:With fast disappearing petroleum reserves renewable resources like biomass are of great significance. Petrocrop, Calotropis procera is a wild shrub and does not compete with food and fodder crops for land. This paper presents an investigation on enhancement of hydrocarbon ex...
作者:Ratna Choudhury , A.K. Bhaktavatsalam
来源:[J].Energy Conversion and Management(IF 2.775), 1997, Vol.38 (2), pp.173-178Elsevier
摘要:Abstract(#br)The high ash content of Indian coals affects the efficiency of operation (when used as fuel in boilers/furnaces) and also the quality of product (coking coals used for producing metallurgical coke). The experimental work conducted takes cognizance of the high silica ...
作者:Ratna Choudhury , A.K. Bhaktavatsalam
来源:[J].Energy Conversion and Management(IF 2.775), 1997, Vol.38 (2), pp.167-171Elsevier
摘要:Abstract(#br)The steel industry, by its very nature, is highly energy intensive with many heating and cooling, melting and solidification cycles. Typically, the specific energy consumption of Indian steel plants is quoted in the range of 35–50 GJ/tcs, compared to 17–25 GJ/tc...
作者:... N. Devanna , Raja Chakraborty , Ratna Choudhury
来源:[J].Asian Journal of Chemistry(IF 0.253), 2015, Vol.27 (1)亚洲化学杂志
摘要:A flavonoid was isolated first time from the leaves of Meyna spinosa (Rubiaceae). Antioxidant study revealed that the isolated flavonoid possess strong antioxidant activity. The isolated compound at 20 μg/mL concentration possesses 42.92 % DPPH• and 40.92 % NO• scavengi...

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