Silica based Product Identified for Production from Kimberlite Tailing

National Mineral Development Corporation is involved in diamond mining in the country & Kimberlite produce as a mines waste during kimberlite mining .N M D C is producing around 0.9 million tones of Kimberlite per year in Panna. With estimated life of 20 years for Panna mines , it is pertinent to look for commercial application of kimber-lite . Around 3-4 million tones of Kimberlite is already available from Panna mines accumulated during previous mining . Due to the fact that Kimberlite / Diamond ratio is 100 tones of kimberlite per 10 carat of Diamond produ-ced, there is a need to look for development of multi — product which are of bulk usage from the Kimberlite. Technological option for Eco- friendly & Economically Efficient Utilization of Kimberlite needed and in view of their wide application, also bulk usage, the following three products were identified to be developed from Kimberlite

The Inhibition of Arginase by Proline in Cell-free Extracts of Mouse Mammary Tumour

Arginase activity was found to be increased in precancerous nodules and mammary tumour when compared with the mammary gland. Proline inhibited the mammary tumour arginase and up to 30 mmo1 concentration the inhibition follows first order kinetics. Hill analysis of the inhibition of arginase by proline showed that proline inhibits the arginase activity by competing directly at the active site without conformational change. The inhibition may be of regulatory importanec, involving a feedback mechenism in mammary tumours

Ideotype and relationship between morpho-physiological characters and yield in Indian mustard (Brassica juncea)

Twelve genotypes of Indian mustard [Brassica juncea (L.) Czemj. & Cosson] were evaluated for various yield and morpho- physiological characters during 1990 and 1991. The genotypes were classified basal or non-basal branching type on the basis of the presence or absence of at least 1 productive primary branch within 30 cm height of the plant. A correlation analysis revealed that the traits related to basal branching were positively associated among themselves as well as with the seed yield. There were desirable and negative associations of basal branching characters with flowering time and plant height. Thus breeding for early maturing basal branching plant types with medium height and high yield is possible

Seismic Behaviour of R.c.c Building with and Without Floating Columns

The main purpose of the project is to study the seismic behaviour of R.C.C building with and without floating column,G+5 structures has been selected for carrying out the project work. The building models are generated using software STAAD. Pro 8V. Seismic behaviour of structures or buildings subjected to earthquake induced motions and vibrations. They are transferred to the structures from the soil. A column is supposed to be a vertical member starting from foundation level and transferring the load to the ground. The term floating column is also a vertical element which at its lower level rests on a beam which is a horizontal member. Buildings with columns that hang or float on beams at an intermediate story and do not go all the way to the foundation, have discontinuities in the load transfer path

Microbial consortium culture and vermi-composting technologies for recycling on-farm wastes and food production

Abstract Purpose A study was conducted to characterize the ‘Madhyam culture’ (Excel Crop Care Limited.), an aerobic-composting microbial consortium culture, and understand composting dynamics, product quality and use in crop production vis-à-vis vermi-composting (using earthworms). Methods 16S rDNA analysis was used to characterize aerobic-composting culture. Aerobic-composting and vermi-composting technologies were evaluated to decompose sorghum straw and dung biomass (80:20 ratio; primed with 0.5% urea and 4% rock phosphate) to study days to maturity and composting dynamics in terms of changes in temperature and microbial population. Compost quality was tested for macro-, micro-nutrients and C:N ratio, and evaluated for food production in on-farm trials. Results 16S rDNA analysis screened sixteen bacterial isolates—eight related to genus Bacillus, three to each Halobacillus and Staphylococcus, one to each Microbacterium and Streptomyces. The population of bacteria was 4.5 cfu ml−1 at 10−7 dilution. Aerobic- and vermi-composts matured in around 50 and 60 days, respectively. Aerobic-composting throughout recorded relatively higher bacterial population, and higher temperatures during the initial phase. Aerobic-compost tested for high nutrient (1.55% N, 0.93% P, 1.00% K) content and stable C:N ratio (10.3) compared to vermi-compost (1.11% N, 0.43% P, 0.96% K and C:N ratio of 11.7). Field evaluation of both composts showed yield benefit and saving of chemical fertilizers up to 25%. Conclusions Aerobic-composting (using microbial consortium culture), like vermi-composting, proved to be an effective technology with advantage of no requirement to maintain ambient living conditions in lean periods as is required for earthworms in vermi-composting, but needs more energy/labor for biomass turnings