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Das, Suman
- Changing Surface Temperature in Agartala City, Tripura Using RS and GIS
Abstract Views :226 |
PDF Views:3
Authors
Affiliations
1 Department of Geography, North-Eastern Hill University, Meghalaya-793022, IN
1 Department of Geography, North-Eastern Hill University, Meghalaya-793022, IN
Source
Indian Science Cruiser, Vol 31, No 6 (2017), Pagination: 11-14Abstract
Understanding the distribution of Land Surface Temperature (LST) in Agartala city and Vegetation Cover (NDVI) and its spatial variation will be helpful to depict its dynamics and mechanism for finding out solutions. For the present study Landsat imageries of different time period (2000, 2010 and 2016 of February) were obtained from USGS. The imageries were processed to prepare valuable maps in GIS environment.Keywords
Agartala City, NDVI, LST, Urbanization.
References
- Balamurugan et al., 2009. Surface Temperature mapping using ETM TIR images in Parts of Precambrian Terrain, India, Developments in Exploration Geology and Geoinformatics, Macmillan, New Delhi., pp. 237-244.
- Jawaharlal Nehru National Urban Renewal Mission (JNNURM), 2006. City Development Plan-Agartala, LEA Associates South Asia, New Delhi in Association with CEPT, Ahmadabad.
- Kaspersen et al., 2015. Using Landsat Vegetation Indices to Estimate Impervious Surface Fractions for European Cities, Journal of Remote Sens. Vol. 7, ISSN: 2072-4292, pp. 8224-8249; doi:10.3390/rs70608224
- Kumar et al., 2012. Estimation of Land Surface Temperature to Study Urban Heat Island Effect Using Landsat ETM+ Image, International Journal of Engineering Science And Technology (IJEST), ISSN: 0975-5462, Vol. 4, No.02, PP. 771-778.
- G. Molnar, 2016. Analysis of land surface temperature and NDVI distribution for Budapest using Landsat 7 ETM+ data, journal of Acta Climatologica ET Chorologica, Universitatis Szegediensis, Tomus, Vol. 49-50, pp. 49-61.
- NASA, 2004, Landsat Project Science Office: Landsat 7 Science data users hand book, Chapter: 11, Data Products. http://www.gsfc.nasa.gov/IAS/handbook/handbook_htmls
- Orhan et al., 2014. Use of Landsat Land Surface Temperature and Vegetation Indices for Monitoring Drought in the Salt Lake Basin Area, Turkey, The Scientific World Journal, pp. 1-11.
- O. Orhan, and M. Yakar, 2016. Investigating Land Surface Temperature Changes Using Landsat Data in Konya, Turkey, The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Volume XLI-B8, 2016 XXIII ISPRS Congress, 12–19 July 2016, Prague, Czech Republic.
- Saha et al., 2013. Estimating Minimum and Maximum Air Temperature Using MODIS Data Over Indo-Gangetic Plain, Journal of Earth System Science, Indian Academy of Sciences, Vol. 122, No. 6, pp. 1593-1605.
- Schmugge et al., 2002. Temperature and emissivity separation from multispectral thermal infrared observations, Journal of Remote Sensing of Environment, Vol. 79, pp. 189-198, Elsevier Publication.
- UN (2015). World Urbanization Prospects: The 2014 Revision, United Nations, Department of Economic and Social Affairs, Population Division.
- An Experimental Study of Grinding Performances of a Mild Steel under Different Environmental Conditions using Various Types of Nozzles
Abstract Views :400 |
PDF Views:131
Authors
Affiliations
1 Department of Mechanical Engineering, Jalpaiguri Government Engineering College, Jalpaiguri- 735102, IN
1 Department of Mechanical Engineering, Jalpaiguri Government Engineering College, Jalpaiguri- 735102, IN
Source
Reason-A Technical Journal (Formerly Reason-A Technical Magazine), Vol 17 (2018), Pagination: 48-56Abstract
Grinding is a mechanical metal removal process used in manufacturing industries. In this process, the material is removed from a work-piece material by an abrasive wheel. This process gives better surface finish and close tolerance. Grinding process removes material by shearing, ploughing, rubbing and brittle fracture with high- speed and a high input of energy per unit volume. The coolant or grinding fluid is used to reduce the temperature in grinding zone and also it is used as a lubricant into grinding zone. In present work, a five port multi-nozzle system has been developed and performance of this nozzle has been compared with flood type copper cooling nozzle under different environmental conditions. Two parameters (chip characteristics, surface roughness) of grinding are considered to find the suitable process for grinding of a mild steel specimen. From this experimental investigation, it can be observed that in wet condition, five port multi-nozzle system provides better surface finish as well as it is more economical.Keywords
Five Port Multi-nozzle, Surface Roughness, Depth of Cut, Grinding, Chip, Dry Test.Full Text
References
- Bhattacharyya, A., Metal Cutting - Theory and Practice, New Central Book Agency (P) Ltd., Kolkata, 1984.
- Malkin, S., Grinding Technology-Theory and Application of Machining with Abrasives, Ellis Harwood Publication, UK, 1990.
- Chattopadhyay, A.B., Machining and Machine Tools, Wiley India Private Limited, 2011.
- Das, S., Sharma, A.O., Singh, S.S. and Nahate, S.V. Grinding Performance through Effective Application of Grinding Fluid, Proceedings of the International Conference on Manufacturing, pp.231-239, Dhaka, Bangladesh, 2000.
- Rowe, W.B., Morgan, M.N., Allanson D.R., An advance in the modelling of thermal effects in the grinding process, Annals of the CZRP, Vol.40, No.1, pp.339-342, 1991.
- Paul, S. and Chattopadhyay, A.B., A Study of Effects of Cryogenic Cooling in Grinding, International Journal of Machine Tools and Manufacture, Vol.35, No.1, pp.109-117, 1995.
- Paul, S. and Chattopadhyay, A.B., The Effect of Cryogenic Cooling in Grinding Forces, International Journal of Machine Tools and Manufacture, Vol.36, No.1, pp.63-72, 1996.
- Irani, R.A., Bauer, R.J. and Warkentin, A., A Review of Cutting Fluid Application in the Grinding Process, International Journal of Machine Tools and Manufacture, Vol.45, pp.1696-1705, 2005.
- Das, S., Improving Grinding Performance through Appropriate Grinding Fluid Application, Proceedings of the National Conference on Investment Casting, Durgapur, India, pp.97-103, 2003.
- Mandal, B., Majumdar, S., Das, S. and Banerjee, S., Formation of a Significantly Less Stiff Air Layer around a Grinding Wheel with a Rexine Leather Pasted Wheel, International Journal of Precision Technology, Vol.2, No.1, pp.12-20, 2011.
- Mandal, B., Singh, R., Das, S. and Banerjee, S., Improving Grinding Performance by Controlling Air Flow around a Grinding Wheel, International Journal of Machine Tools and Manufacture, Vol.51, No.9, pp.670-676, 2011.
- Mandal, B., Biswas, D., Sarkar, A., Das, S. and Banerjee, S. Grinding Performance Using a Compound Nozzle Characterized by Small Discharge of Fluid, Journal of the Association of Engineers, India, Vol.83, No.1, pp.28-35, 2013.
- Concentrated Solar Thermal Power Plant with Multi-PCM Reservoirs for Electrical Power Generation-An Idea
Abstract Views :324 |
PDF Views:125
Authors
Affiliations
1 Mechanical Engineering Department, Jalpaiguri Government Engineering College, Jalpaiguri, IN
1 Mechanical Engineering Department, Jalpaiguri Government Engineering College, Jalpaiguri, IN
Source
Reason-A Technical Journal (Formerly Reason-A Technical Magazine), Vol 17 (2018), Pagination: 57-65Abstract
Global warming is one of the most alarming threats to the whole world. A very large quantity of energy source which reaches the earth is solar energy. But the big challenge to scientists and the engineers is to store and convert this energy in the form of thermal or electrical energy. In solar power plants, the energy of the Sun is used to produce electricity. Such a plant can run only in the daytime, but if it is possible to store solar energy then it can also be used at night time. Time-dependence is the major problem of the solar thermal power plant. Thermal energy storage (TES) technology can store energy by using Phase change material (PCM) to overcome this difficulty. One viable option is the use of PCM materials that provide an efficient way of storing such energy. Initially, PCM remains in solid-state; it absorbs heat and melts into the liquid state. At night time, it releases heat and changes back to solid-state. In this work, concentrated solar power (CSP) technology, is used considering its higher efficiency. The use of PCM as latent heat storage is very effective. Three-phase change material reservoirs of different melting points have been used in series. Thermodynamic analysis has been done to find out the optimum mass flow rate of the heat transfer fluid from the low- temperature PCM reservoir. All the processes have been considered ideal.Keywords
Thermal Energy Storage (TES), CSP Plant, Phase Change Material (PCM), Thermodynamic Analysis.Full Text
References
- Steinhagen, Eng. F.R.H.M. and Trieb, F., Concentrating solar power: a review of the technology, Quarterly of the Royal Academy of Engineering, pp. 43-50, 2004.
- Mills, D.R., Advances in solar thermal electricity technology, Solar Energy, Vol. 76, No.1-3, pp. 19-31, 2004.
- Schnatbaum, L., Solar thermal power plants, The European Physical Journal Special Topics, Vol. 176, pp. 127-140, 2009.
- Lovegrove, K., Watt, M., Passey, R., Pollock, G., Wyder, J. and Dowse, J., Realizing the potential of concentrating solar power in Australia, IT power Australia, Australian Solar Institute, pp. 2-273, 2012.
- Barlev, D., Vidu, R. and Stroeve, P., Innovation in concentrated solar power, solar Energy Materials and Solar Cells, Vol. 95, No.10, pp. 2703-2725, 2011.
- Concentrating Solar Power Projects, National Renewable Energy Laboratory, https://www.degruyter.com/view/journals/nleng/8/1/article-p10.xml, published online: May 22 2018.
- Jankowski, N.R. and McCluskey, F.P., A review of phase change materials for vehicle component thermal buffering, Applied Energy, Vol. 113, pp. 1525-1561, 2014.
- Atkin, P. and Farid, M.N., Improving the efficiency of photovoltaic cells using PCM infused graphite and aluminum fins, Solar Energy, Vol. 114, pp. 217-228, 2015.
- Roman, K.K., O'Brien, T., Alvey, J.B. and Woo, O., Simulating the effects of cool roof and PCM (phase change materials) based roof to mitigate UHI (urban heat island) in prominent US cities, Energy, Vol. 96, pp. 103-117, 2016.
- Fukahori, R., Nomura, T., Zhu, C., Sheng, N., Okinaka, N. and Akiyama, T., Macro-encapsulation of metallic phase change material using cylindrical-type ceramic containers for high temperature thermal energy storage, Applied Energy, Vol. 170, pp. 324-328, 2016.
- Kenisarin and Murat, M., High-temperature phase change materials for thermal energy storage, Renewable and Sustainable Energy Reviews, Vol. 14, pp. 955-970, 2010.
- Trendline of Open Access Publication by Indian Institute of Technology (IITs) Researchers in India
Abstract Views :183 |
PDF Views:6
Authors
Affiliations
1 Librarian, Nabadwip Vidyasagar College, Nabadwip - 741302, West Bengal., IN
2 Librarian, Midnapore College (Autonomous), Midnapore - 721101, West Bengal., IN
3 Professor, Department of Library and Information Science, Vidyasagar University, Midnapore - 721102, West Bengal., IN
4 Project Assistant, National Digital Library of India (NDLI), IIT Kharagpur, West Bengal., IN
1 Librarian, Nabadwip Vidyasagar College, Nabadwip - 741302, West Bengal., IN
2 Librarian, Midnapore College (Autonomous), Midnapore - 721101, West Bengal., IN
3 Professor, Department of Library and Information Science, Vidyasagar University, Midnapore - 721102, West Bengal., IN
4 Project Assistant, National Digital Library of India (NDLI), IIT Kharagpur, West Bengal., IN
Source
Journal of Information and Knowledge (Formerly SRELS Journal of Information Management), Vol 59, No 6 (2022), Pagination: 399-409Abstract
In developing countries like India, taxpayers’ money is utilized for research and development. The researchers conduct their research using public money and publish their research papers in commercial journals. Firstly, the researcher uses Government funds for research. Secondly, government funds are also spent on subscribing to high-cost journals. Also, many Indian academic institutions can not subscribe to reputed commercial journals due to a lack of funds. In other words, research output generated using public money is not accessible to all. OA journals can solve this problem smoothly. In this study, researchers analyze the trends in Open Access publications and Closed access publications by India's top research institutes, IITs. Researchers found that IIT Hyderabad (26%) published the highest number of open-access publications. Old established IITs' open-access publication figures are lower than newly set-up IITs. However, there is an increase in Open Access publications by IITs over the last decade.Keywords
Open Access Movement,Subscription Journals, Open Access Journals,Open Access Publishing , Scholarly Publication,Scholarly Communication SystemReferences
- Berlin Declaration on Open Access to Knowledge in the Sciences and Humanities. Available at: https://openaccess. mpg.de/Berlin-Declaration
- Bethesda Statement on Open Access Publishing. Available at: https://dash.harvard.edu/bitstream/handle/1/4725199/Suber_bethesda.htm?sequence=3&isAll owed=y#note1.
- Bjork, B. C. and Solomon, D. (2012). Open access versus subscription journals: a comparison of scientific impact. BMC Medicine, 10(1), 1-10. Available at: https://bmcmedicine.biomedcentral.com/track/ pdf/10.1186/1741-7015-10-73.pdf. https://doi. org/10.1186/1741-7015-10-73 PMid:22805105 PMCid:PMC3398850
- Budapest Open Access Initiative. Available at: https:// www.budapestopenaccessinitiative.org/read.
- Ciriminna, R., Scurria, A., Gangadhar, S., Chandha, S., and Pagliaro, M. (2021). Reaping the benefits of open science in scholarly communication. Heliyon, e08638. Available at: https://www.sciencedirect.com/ science/article/pii/S2405844021027419. https://doi. org/10.1016/j.heliyon.2021.e08638 PMid:35005285 PMCid:PMC8718950
- Laakso, M., Welling, P., Bukvova, H., Nyman, L., Björk, B. C., and Hedlund, T. (2011). The development of open access journal publishing from 1993 to 2009. PloS one, 6(6), e20961. Available at: https://journals.plos. org/plosone/article?id=10.1371/journal.pone.0020961. https://doi.org/10.1371/journal.pone.0020961 PMid:21695139 PMCid:PMC3113847
- Piwowar, H., Priem, J., Larivière, V., Alperin, J. P., Matthias, L., Norlander, B., Haustein, S, et al. (2018). The state of OA: a large-scale analysis of the prevalence and impact of Open Access articles. PeerJ, 6, e4375. Available at: https:// peerj.com/articles/4375/. https://doi.org/10.7717/ peerj.4375 PMid:29456894 PMCid:PMC5815332
- Van de Sompel, H., Payette, S., Erickson, J., Lagoze, C., and Warner, S. (2004). Rethinking scholarly communication. D-Lib Magazine, 10(9), 1082-9873. Available at: https://dlib.ejournal.ascc.net/dlib/september04/vandesompel/09vandesompel.html. https://doi.org/10.1045/september2004-vandesompel