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Prashant,
- Captive Breeding of Indian Grey Wolf at Mysore Zoo
Abstract Views :208 |
PDF Views:1
Authors
Affiliations
1 Sri Chamarajendra Zoological Gardens, Mysore
1 Sri Chamarajendra Zoological Gardens, Mysore
Source
Indian Forester, Vol 139, No 10 (2013), Pagination: 962-964Abstract
No abstract given
References
- Prater, H.S. (1965). The book of Indian animals. Bombay Nat. Hist. Soc. Press, Bombay, 324 pp.
- Experimental Investigation of Heat Transfer Characteristics of Plate Heat Exchanger using Alumina - Water based Nanofluids at Different Orientations
Abstract Views :149 |
PDF Views:0
Authors
Affiliations
1 Department of Mechanical Engineering, Chandigarh University, Gharuan - 140413, Punjab, IN
2 Department of Mechanical Engineering, BabaFarid College of Engineering & Technology,Bathinda - 151001, Punjab, IN
1 Department of Mechanical Engineering, Chandigarh University, Gharuan - 140413, Punjab, IN
2 Department of Mechanical Engineering, BabaFarid College of Engineering & Technology,Bathinda - 151001, Punjab, IN
Source
Indian Journal of Science and Technology, Vol 9, No 48 (2016), Pagination:Abstract
Objectives: Fluids like nanofluids which are rich in thermal conductivity have very good impact on the heat transfer rate of any device. The main aim of this study is to carry out research on the heat transfer characteristics of plate heat exchanger with different orientations using Al2O3/nanofluids. Methods: Two different concentration (0.1% v/v and 0.2% v/v) of nanofluids have been used in this research. Inclination angles 0°, 30°, 60°, 90° have been used in this experiment. Experiments firstly carried out with double distilled water then with 0.1% and 0.2% v/v nanofluids. Performance of plate heat exchanger with use of nanofluids compared with water to check the effects of use of nanofluids. Findings: Results addresses that the overall performance of the plate heat improve by using nanofluids as a working fluid in a plate heat exchanger. Average increment of approximately 28% has been noticed in case of the nanofluids. Results also addresses that the average decrement of approximately 10- 15% has been observed when the orientation of plate heat exchanger changes from horizontal to inclined (30°). Improvements/Applications: This technique can be used in industries to improve the performance of heat exchange device.Keywords
Al2O3/Water Nanofluids, Heat Transfer Characteristics, Plate Heat Exchanger.Full Text
- Wave-Particle Duality?
Abstract Views :156 |
PDF Views:0
Authors
Prashant
1
Affiliations
1 School of Science and Engineering, University of Glasgow, GB
1 School of Science and Engineering, University of Glasgow, GB
Source
Journal of Physics & Astronomy, Vol 6, No 1 (2018), Pagination: 1-2Abstract
An intuitive way of performing young’s double slit experiment have been proposed which can mark an end to the long-lasting debate of wave-particle duality. Insights related to it have been derived from the understanding of nature which include a hypothesis. Observer effect went obsolete and observed result matches with classical physics results.Keywords
Gravitational, Parallelogram, Measurement, Electrode.Full Text
References
- Shankar R. Fundamentals of physics. New Haven: Yale University Press. 2014.
- Selleri F. Wave particle duality. New York: Plenum Pr. 1992.
- Green HS. Measurement and the observer. Information Theory and Quantum Physics. 2000; 171-09.
- Prashant. Kaushal and gravity. J Phys Astron. 2018; 6:133.
- Slump Test:Laboratory and Numerical Simulation-Based Approach for Consistency of Mill Tailings Paste
Abstract Views :251 |
PDF Views:68
Authors
S. K. Behera
1,
Prashant
1,
C. N. Ghosh
1,
D. P. Mishra
2,
P. K. Mandal
1,
Aniket Verma
1,
Sumeet Mohanty
3,
Kanhaiya Mishra
1,
P. K. Singh
1
Affiliations
1 CSIR-Central Institute of Mining and Fuel Research, Dhanbad 826 015, IN
2 Indian Institute of Technology (Indian School of Mines), Dhanbad 826 004, IN
3 Birla Institute of Technology and Science, Hyderabad 500 078, IN
1 CSIR-Central Institute of Mining and Fuel Research, Dhanbad 826 015, IN
2 Indian Institute of Technology (Indian School of Mines), Dhanbad 826 004, IN
3 Birla Institute of Technology and Science, Hyderabad 500 078, IN
Source
Current Science, Vol 117, No 2 (2019), Pagination: 235-241Abstract
Solid-to-water proportion decides the effectiveness of paste backfill in terms of transportation characteristics during mine backfilling. This article highlights various laboratory tests conducted to determine the optimum solid-to-water ratio. Also, numerical simulation was carried out using computational fluid dynamics technique (ANSYS FLUENT) to understand the slump lifting process and variation in volume of the paste with time. The optimum slump and spread for lead–zinc mill tailings paste were in the range 190– 200 mm and 330–340 mm respectively. The optimum water content in the paste fill for this study was found to be 23 wt%. Results show that the solid percentage is inversely related with slump and spread. Also, an optimum slump lifting speed needs to be maintained for accurate values of slump and spread.Keywords
Computational Fluid Dynamics Modelling, Mill Tailings, Paste Fill, Slump Test.Full Text
References
- http://ibm.nic.in/writereaddata/files/08092017094123Leadzinc2015(Final).pdf (accessed on 21 December 2017).
- Edraki, M., Baumgartl, T., Manlapig, E., Bradshaw, D., Franks, D. M. and Moran, C. J., Designing mine tailings for better environmental, social and economic outcomes: a review of alternative approaches. J. Clean. Prod., 2014, 84(1), 411–420; doi:10.1016/j.jclepro.2014.04.079.
- Belem, T. and Benzaazoua, M., Design and application of underground mine paste backfill technology. Geotech. Geol. Eng., 2008, 26(2), 147–174.
- Deb, D., Sreenivas, T., Dey, G. K. and Panchal, S., Paste backfill technology: essential characteristics and assessment of its application for mill rejects of uranium ores. Trans. Indian Inst. Metals, 2017, 70(2), 487–495.
- Ercikdi, B., Cihangir, F., Kesimal, A. and Deveci, H., Practical importance of tailings for cemented paste backfill. In Paste Tailings Management (eds Yilmaz, E. and Fall, M.), Springer, Cham, Switzerland, 2017, pp. 7–32.
- Helsinki, M., Fourie, A., Fahey, M. and Ismail, M., Assessment of the self-desiccation process in cemented mine back fills. Can. Geotech. J., 2007, 44, 1148–1156.
- Jewell, R. J., Fourie, A. B. and Lord, E. R., Paste and Thickened Tailings – A Guide, Australian Centre of Geomechanics, Perth, Australia, 2002.
- Potvin, Y., Thomas, E. H. and Fourie, A. B., Handbook on Mine Fill, ACG Publication, Perth, Australia, 2005.
- Gao, J., Investigation of the flume test and mini-slump test for thickened tailings disposal. Ph D thesis, Princeton University, NJ, USA, 1991.
- Yılmaz, E., Kesimal, A., Erçıktı, B. and Alp, İ., Determination of the optimum cement content for paste backfill samples. In 18th International Mining Congress and Exhibition of Turkey-IMCET, Antalya, 2003, pp. 119–125.
- Boger, D. V., Rheology and the resource industries. Chem. Eng. Sci., 2009, 64, 4525–4536.
- Pashias, N., Boger, D. V., Summers, J. and Glenister, D. J., A fifty cent rheometer for yield stress measurement. J. Rheol., 1996, 40, 1179–1189.
- Bingham, E. C., Fluidity and Plasticity, McGraw-Hill Book Company, Inc, New York, USA, 1922.
- Robinsky, E. I., Thickened discharge – a new approach to tailings disposal. CIM Bull., 1975, 68, 47–53.
- Robinsky, E. I., Tailings disposal by the thickened discharge method for improved economy and environmental control. In Tailings Disposal Today, Proceedings of the Second International Tailings Symposium, Denver, Colorado, USA, 1978, pp. 75–92.
- BIS, IS 8112: 43 grade ordinary Portland cement – specification, Bureau of Indian Standards, New Delhi, 1989.
- Clayton, S., Grice, T. G. and Boger, D. V., Analysis of the slump test for on-site yield stress measurement of mineral suspensions. Int. J. Miner. Proc., 2003, 70, 3–21.
- Roussel, N. S. and Leroy, R., From mini cone test to Abrams cone test: measurement of cement based materials yield stress using slump tests. Cem. Concr. Res., 2005, 35, 817–822.
- Haiqiang, J., Fall, M. and Cui, L., Yield stress of cemented paste backfill in sub-zero environments: experimental results. Miner. Eng., 2016, 92, 141–150.