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ORE at CSIR-Institute of Minerals and Materials Technology: Recent submissions

Now showing items 2801-2810 of 3828

Antifeedant activity of some pentacyclic triterpene acids and their fatty acid ester analogues

Mallavadhani, U.V.; Mahapatra, A.; Raja, S.S.; Manjula, C. (Journal Of Agricultural And Food Chemistry, 51(7), 2003: 1952-1955)

The 3-O-fatty acid ester derivatives (C-12-C-18) of two pentacyclic triterpenic acids, ursolic acid and oleanolic acid, were synthesized under mild esterification conditions in excellent yields (80-85%) and screened for ...
A citrate process to synthesize nanocrystalline zinc ferrite from 7 to 23 nm crystallite size

Kundu, A.; Anand, S.; Verma, H.C. (Powder Technology, 132(2-3), 2003: 131-136)

Nanosized zinc ferrite of controlled crystallite size has been prepared by calcining an amorphous zinc-iron-citrate precursor at different temperatures up to 650 degreesC. The variation of crystallite size with calcination ...
Characteristics of plasma processed SiC nanocrystallites and nanorods

Qadri, S.B.; Imam, M.A.; Feng, C.R.; Rath, B.B.; Yousuf, M.; Singh, S.K. (Applied Physics Letters, 83(3), 2003: 548-550)

Nanoparticles and nanorods of SiC were synthesized using arc-plasma processing of coarse particles. X-ray diffraction and Raman spectroscopic studies showed the presence of beta-SiC and carbon nanotubes in the starting ...
Antibacterial activity of sponge extracts against fish pathogens

Choudhury, S.; Pattnaik, P.; Sree, A.; Bapuji, M.; Mukherjee, S.C. (Aquaculture Research, 34(12), 2003: 1075-1077)

The antibacterial properties of organic extracts of 15 species of sponges collected from a depth of 30 m in the coastal waters off Gopalpur (Bay of Bengal) were tested against six virulent fish pathogens. The extracts of ...
Analysis of the oil of large cardamom (Amomum subulatum roxb.) growing in Sikkim

Rout, P.K.; Sahoo, D.; Jena, K.S.; Rao, Y.R. (Journal Of Essential Oil Research, 15(4), 2003: 265-266)

Oils obtained by hvdrodistillation of the seeds of green, freshly dried and those available in the local market of large cardamom (Amomum subulatum Roxb.) were analyzed by GC and GUMS. A total of 33 components were identified ...
Geographical location and harvest time dependent variation in the composition of essential oils of Jasminum sambac. (L.) Aiton

Rao, Y.R.; Rout, P.K. (Journal Of Essential Oil Research, 15(6), 2003: 398-401)

Analysis of the essential oil of the flowers of Jasminum sambac L. distilled in three locations in india showed that considerable variation in the composition occurred. Variation in the composition of the oil recovered ...
Extraction of manganese from low-grade Nishikhal ore using pyritiferous lignite in acidic medium

Naik, P.K.; Das, S.C.; Sukla, L.B. (Minerals & Metallurgical Processing, 19(2), 2002: 110-112)

Leaching studies of low-grade manganese ore containing 31.77% Mn and 23.71% Fe from Nishikhal, India, were carried out using pyritiferous lignite as a reductant in sulfuric acid medium. The variables studied were quantity ...
Optimization of flotation parameters for enhancement of grade and recovery of phosphate from low-grade dolomitic rock phosphate ore from Jhamarkotra, India

Rao, G.V.; Mohanty, Swati (Minerals & Metallurgical Processing, 19(3), 2002: 154-160)

Sedimentary dolomitic phosphate ores are difficult to treat by flotation, and high-grade phosphate concentrates with high recoveries are difficult to obtain. The literature indicates that the reagents required for beneficiation ...
Treatment of wastewater containing copper, zinc, nickel and cobalt using Duolite ES-467

Rao, K.S.; Sarangi, D.; Dash, P.K.; Chaudhury, G.R. (Journal Of Chemical Technology And Biotechnology, 77(10), 2002: 1107-1113)

Duolite ES-467 was used to treat wastewater containing heavy metal ions. Sorption experiments were carried out at varying pH values, agitation speeds, reaction times, and metal ion and sorbent concentrations. Each of the ...
Trend surface modelling of Karlapat bauxite deposit, Eastern Ghat Group, Orissa, India

Nayak, B.K.; Sahu, S.K.; Sahoo, R.K. (Resource Geology, 52(3), 2002: 239-248)

The Karlapat bauxite deposit occurs in the Eastern Ghat Group of rocks in Orissa and has developed in the khondalites. Mineralogical and physical observations on bore hole samples reflect the presence of a maximum of six ...

Now showing items 2801-2810 of 3828

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