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Mishra, A.
- Influence of Density of Emulsion Explosives on its Velocity of Detonation and Fragmentation of Blasted Muckpile
Abstract Views :261 |
PDF Views:125
Authors
Affiliations
1 Department of Mining Engineering, Indian Institute of Technology (ISM), Dhanbad-826 004, IN
2 Sarpi Colliery, Bankola Area, Eastern Coalfield Limited, District Barddhaman 713 363, IN
3 Gulf Oil Corporation Limited, Kolkata 700 107, IN
1 Department of Mining Engineering, Indian Institute of Technology (ISM), Dhanbad-826 004, IN
2 Sarpi Colliery, Bankola Area, Eastern Coalfield Limited, District Barddhaman 713 363, IN
3 Gulf Oil Corporation Limited, Kolkata 700 107, IN
Source
Current Science, Vol 112, No 03 (2017), Pagination: 602-608Abstract
Opencast mining accounts for about 86% of the produced coal in India. Most of the opencast mines in the country use bulk emulsion explosives. The total consumption of explosives in India is around 550,000 tonnes annually. It has been shown that detonation velocities vary with the density of the emulsion explosive. Here we describe experiments that have been conducted to understand the influence of velocity of detonation of emulsion explosives on fragmentation of blasted muckpile over a range of densities. The density of explosives was varied from 0.6 to 1.1 g/cc which resulted in the variation of detonation velocity from 3262 to 4624 m/s.Keywords
Blasted Muckpile, Detonation Velocity, Emulsion Explosives Density, Opencast Mines.Full Text
- Cultivated Land Utilization Index Vis-a-Vis Cropping Intensity for Crop Diversification and Water Resource Management in Odisha, India
Abstract Views :169 |
PDF Views:84
Authors
P. S. Brahmanand
1,
Biswaranjan Behera
1,
Shivendra Kumar Srivastava
2,
R. B. Singandhupe
3,
A. Mishra
1
Affiliations
1 ICAR-Indian Institute of Water Management, Bhubaneswar 751 023, IN
2 ICAR-National Institute of Agricultural Economics and Policy Research, New Delhi 110 012, IN
3 ICAR-Central Institute for Cotton Research, Nagpur 440 010, IN
1 ICAR-Indian Institute of Water Management, Bhubaneswar 751 023, IN
2 ICAR-National Institute of Agricultural Economics and Policy Research, New Delhi 110 012, IN
3 ICAR-Central Institute for Cotton Research, Nagpur 440 010, IN
Source
Current Science, Vol 120, No 7 (2021), Pagination: 1217-1224Abstract
The cultivated land utilization index (CLUI) for all the districts of Odisha, India during 2013–14 was estimated in this study. The average state CLUI value (0.585) indicated the scope of improving resource utilization, though 67% of the net cropped area is sown twice. All the districts of the state were classified under four scenarios with various combinations of cropping intensity and CLUI. Growing long-duration crop varieties under conditions of ample water availability and, more short-duration less water-requiring crops under limited water supply will improve resource utilization. The results pave the way for analysis of CLUI at a national level for efficient resource utilization by formulating cropping patterns based on water availability.Keywords
Cultivated Land Utilization Index, Cropping Intensity, Crop Diversification, Water Resource Management, Water Availability.Full Text
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