ID: 63292
Title: Landsat 8 OLI data for identification of hydrothermal alteration zone in singhbhum Shear Zone using successive band depth difference technique – a new image processing approach
Author: Kreishnendu Banerjee, Manish Kumar Jain, A.T. Jeyaseelan and Surajit Panda
Editor: S.K.Satheesh
Year: 2019
Publisher: None
Source: ENVIS, CES & EWRG, CES
Reference: Current Science Vol. 116 (10) 1639-1647 (2019)
Subject: Landsat 8 OLI data for identification of hydrothermal alteration zone in singhbhum Shear Zone using successive band depth difference technique – a new image processing approach
Keywords: Relative absorption band depth, RGB, signal-to-noise ratio, SBDD, TIRS.
Abstract: Recent advances in calculation algorithms have led to a new level of image processing for mineral identification and mapping. Mineral outcrop mapping has decade’s history of using conventional methods like band combination, band ratioing and relative absorption band depth (RBD) technique. Modification of these algorithms enriches the capabilities of object identification and mapping. Band combination and band ratioing help to locate the distribution of a hydrothermal altered zone. In the current study, an attempt has been made to modify the RBD approach. Newly introduced successive band depth difference (SBDD) measures the difference of reflectance values in successive bands by dividing the sum of the highest successive shoulders by the shoulder of the lowest value before the starting shoulder. Band math function has been used in various bands of Landsat 8 operational land imager (OLI) data to access the precise distribution of points of the hydrothermal altered zone. SBDD method has achieved a kappa coefficient of 0.86 which depicts significant levels of accuracy.
Location: T E 15 New Biology building
Literature cited 1: Sabins, F.F., Remote sensing for mineral explotration.Ore Geol.Rev, 1999, 14, 157-183.
Van der Meer, F., De Jong,S. and Bakker, W., Imaging Spectrometry: Basic Analytical Techniques, Imaging Spectrom, Springer, Dordrecht, 2002, pp.17-61.
Literature cited 2: Kruse,F.A., Lefkoff, A.B., Boardman, J.W., Heidebrecht ,K.B., Shapiro, A.T., Barloon, P.J., and Goetz, A.F.H., The spectral image processing system (Sips) –interactive visualization and analysis of imaging spectrometer data. Remote Sens. Environ., 1993, 44, 145-163; doi: 10.1016/0034-4257 (93) 90013-N.
Clark, R.N., Swayze, G.A., Gallagher, A., Gorelick, N. and Kruse, F.A., Mapping with imaging spectrometer data using the complete band shape least-squares algorithm simultaneously fit to multiple spectral features from multiple materials. In proceedings of the third airborne visible/infrared imaging spectrometer (AVIRIS) workshop, 1991. Vol.42, pp.2-3.
ID: 63291
Title: Barium-rich alkali feldspar in basanite from central Kachchh, north-western India
Author: Md. Naushad, P.V.R. Murthy, Monalisa Chakra
Editor: S.K.Satheesh
Year: 2019
Publisher: Current Science Association and Indian Academy of Sciences.
Source: ENVIS, CES & EWRG, CES
Reference: Current Science Vol. 116 (10) 1637-1638 (2019)
Subject: Barium-rich alkali feldspar in basanite from central Kachchh, north-western India
Keywords: Barium-rich alkali feldspar, basanite from central Kachchh, north-western India
Abstract: Alkali feldspar with barium (Ba) is often present in alkaline, potassic, ultra-potassic, lamprophyte and alkaline silicic volcanic rocks. It provides valuable information regarding the behaviour of Ba during characterization. Here we report the occurrence of Ba-rich alkali feldspar (hylophane) rim around plagioclase from basanite intrusive into the Mesozoic Bhuj sandstone in the central part of the Kachchh, northwestern Deccan Traps (NWDT), Gujarat, India.
Spectrographic characteristics of basanite show porphyritic texture consisting of olivine, clinopyroxenes, Plagioclase, Ba-rich alkali feldspar, spinel and nepheline (in order of decreasing abundance) with occasional biotite and analcime.
Location: T E 15 New Biology building
Literature cited 1: Zhang, M. et al., Mineral. Mug, 1993, 57, 565-573.Deer, W.A., et al., J. Geol. Soc. London, 2001, 4A, 909-942.
Deer, W.A.et al., J. Geiol. Soc. London., 2001, 4A, 909-942.
Literature cited 2: Essene, E.J. et al.Eur.J.Mineral., 2005, 17,515-535.
Sun, S. and McDonough, W.F.J.Geol.Soc.London, 1989,42, 313-345.
ID: 63290
Title: 28August 2018 (Mw 4.5) Bengal Basin earthquake highlights active basement fault beneath the sediments
Author: Siddharth Dey, Debarchan Powali, Jashodhara Chaudhary, Monumoy Ghosh, Riddhi Madal, Jyotima Kanaujia, Supriyo Mitra
Editor: S.K.Satheesh
Year: 2019
Publisher: Current Science Association and Indian Academy of Sciences.
Source: ENVIS, CES & EWRG, CES
Reference: Current Science Vol. 116 (10) 1633-1636 (2019)
Subject: 28August 2018 (Mw 4.5) Bengal Basin earthquake highlights active basement fault beneath the sediments
Keywords: Bengal Basin earthquake, active basement fault,
Abstract: The India Meteorological Department (IMD) reported an earthquake of magnitude 4.8 at IST 18h 33min ad 29 sec on 28 August 2018.The epicentre of the earthquake was located in the Bengal Basin (lat.22.6º, long.87.7ºE) at a distance of `67 km west of the city of Kolkata. Strong to moderate ground shaking was felt in the epicentral zone and in surrounding districts of East Midnapore, West Midnapore, Jhargram and Bankura. Given the moderate size of the event, there was neither loss of life nor cases of injury due to the earthquake.
Location: T E 15 New Biology building
Literature cited 1: Kaaila, K.L., Reddy, P.R., Mall, D.M., Venkateswarul, N., Krishna, V.G., and Prasad, A.S.S.S.R.SQ., Geophys. J. Int., 1992, 111 (1), 45-66.
Kaila, K.L.et al., Geophys. J.Int. 1996, 124,175-188.
Literature cited 2: Mitra, S., Priestley, K.F., Borah, K.J. and Gaur, V.K. J.Geophys. Res.,: Solid Earth, pages n/a, 2018;ISSN 2169-9356.doi:10.1002/2017JB014714.URL http://dx.doi.org/10.1002/2017JB014714.2017JB014714.
Alam, M., Alam, M.M., Curray, J., Chowdhury, M.L.R. and Gani, M.R., Sediment.Geol. 2003, 155,179-208.
ID: 63289
Title: Carbon storage in bamboo (Schizostachyum dullooa) forest of Barak Vallley, Southern Assam, India
Author: Mukta Chandra Das, Arn Jyoti Nath, Ashesh Kumar Das
Editor: S.K.Satheesh
Year: 2019
Publisher: Current Science Association and Indian Academy of Sciences.
Source: ENVIS, CES & EWRG, CES
Reference: Current Science Vol. 116 (10) 1631-1633 (2019)
Subject: Carbon storage in bamboo
Keywords: Carbon storage, Bamboo, Schizostachyum dullooa, forest of Barak Vallley, Southern Assam, India
Abstract: The Earth’s mean atmospheric carbon dioxide (CO2) concentration in 2018 was recorded at 410 ppm (parts per million) , which is the highest in the past 800, 000 years .CO2 is one of the important log-lived greenhouse gases (GHGs) that absorbs wavelengths of thermal energy and adds to the greenhouse effect in a unique way. In January 2018, temperature across the earth’s land and ocean surfaces was 0.71ºC above the 20th century average of 120 ºC. In this regard, enhancing sinks for ever-increasing CO2 concentration through promoting biotic reservoirs has been appreciated by the global scientific community as a strategy for climate change mitigation.
Location: T E 15 New Biology building
Literature cited 1: Kaila, K.L. Reddy, P.R., Mall, D.M., Venkateswarul, N., Krishna, V.G., and Prasad, A.S.S.S.R.S., Geophys.J. Int.1992, 111 (1), 45-66.
Kaila, K.L.et al.Geophys.J.Int. 1996, 124, 175-188.
Literature cited 2: Mitra, S., Priestley, K.F., Borah, K.J., ad Gaur, V.K.J. Geophys. Res.: Solid Earth, pages n/a-n/a, 2018: ISSN 2169-9356.doi:101002/2017JB014714.URLhttp://dx.doi.org/10.1002/2017JB014714.2017JB014714.
Alam, M., Alam, M.M. Curray, J. Chowdhyurty, M.L.R. and Gani, M.R., Sediment.Geol. 2003, 155,179-208.
ID: 63288
Title: Radio serial on climate change and global warming
Author: B.K.Tyagi
Editor: S.K.Satheesh
Year: 2019
Publisher: Current Science Association and Indian Academy of Sciences.
Source: ENVIS, CES & EWRG, CES
Reference: Current Science Vol. 116 (10) 1624-1625 (2019)
Subject: Radio serial on climate change and global warming
Keywords: Radio, climate change, global warming
Abstract: Climate change is now reality now. The fact has been supported by a plethora of literature published in the last decade. Some of the observable effects on the environment are already visible. The scientific community across the globe is confident that global temperature will continue to rise in the future, mainly due to the emission of greenhouse gases produced as a result of anthropogenic activities. Intergovernmental Panel on Climate Change (IPCC) has predicted that increase in global mean temperature of less than 1-30ºC above 1990 levels will produce beneficial produce beneficial impacts in some regions and harmful ones in others, but taken as a whole’, ‘the range of published evidence indicates that the net damage costs of climate change are likely to be significant and to increase over time.
Location: T E 15 New Biology building
Literature cited 1: Mainka, S.A. ad Howard, G.W., Integr.zool., 2010, 5,102-111.
Rahel, F.J.ad Olde, J.D., Conserv.Biol, 2008, 22,521-533.
Literature cited 2: Padilla, D.K.ad Williams, S.L., Frot. Ecol. Eviro., 2004, 2, 131-138.
Biju Kumar, A. Ad Raghavan, R., J. Threat. Taxa, 2015, 7, 8036-8080.
ID: 63287
Title: The Politics of Dams: Developmental Perspectives and Social Critique in Modern India
Author: Hanna Werner reviewed by T.V.Ramachandra
Editor: S.K.Satheesh
Year: 2019
Publisher: Current Science Association and Indian Academy of Sciences.
Source: ENVIS, CES & EWRG, CES
Reference: Current Science Vol. 116 (9) 1595-1596 (2019)
Subject: The Politics of Dams: Developmental Perspectives and Social Critique in Modern India
Keywords: Politics of Dams, Developmental Perspectives, Social Critique, Modern India
Abstract: Big dams implemented in India for irrigation, power, water supply, etc. were often considered as effective symbols of economic development during the twentieth century. However, this endeavour is often associated with the scant regard for environmental and social consequences-especially for the populations that are displaced due their homelands being flooded. Implementing large-scale river valley projects through the construction of dams is still high on the State’s agenda and constitutes a symbol of certain kind of development that seems to have lost much of the appeal compared to the boom in large projects in the early days after independence.
Location: T E 15 New Biology building
Literature cited 1:
Literature cited 2:
ID: 63286
Title: Avian mortalities from two wind farms at Kutch, Gujarat and Devangere, Karnataka, India
Author: Selvaraj Ramesh Kumar, V. aAnoop, P.R.Arun, Rajah Jayapal and A.Mohamed Samsoor Ali
Editor: S.K.Satheesh
Year: 2019
Publisher: Current Science Association and Indian Academy of Sciences.
Source: ENVIS, CES & EWRG, CES
Reference: Current Science Vol. 116 (9) 1587-1592 (2019)
Subject: Avian mortalities from two wind farms at Kutch, Gujarat and Devangere, Karnataka, India
Keywords: Avian mortality, bird collisions, carcasses, wind turbines
Abstract: Wind power is renewable and helps reduce greenhouse emission from the energy sector; however, it also has undesirable impacts on the environment. Studies from Europe and the USA report negative impact of wind farms on wildlife, especially on birds. India, the fourth largest producer of wind energy and also a mega biodiverse country has little information on this issue. Here, were report bird collisions from two wind farms: one at Kutch, Gujarat in western India and another from Devangere, Karnataka in southern India. A total of 47 bird carcasses belonging to at least 11 species in a period of three years were reported from Kutch and seven carcasses of at least three species in a period of one year were recorded at Davengere wind farm. The estimated annual bird mortality rate for Kutch was 0.478 bids/turbine and for Davengere it was 0.466 birds/turbine.
Location: T E 15 New Biology building
Literature cited 1: GWEC, Global Wind Report, Annual Market Updatee, 2016, p.73.
Indian Wind Turbine Manufacturers Association, Status update. Indian Wind Power, 2017, 3, 40.
Literature cited 2: Subramanian. An ill wind. Nature, 2012, 486, 310-311.
Helldin, J.A., et al. The impacts of windpower on terrestrial mammals, Swedish Environmental Protection Agency, Stockholm, Sweden, 2012, p.51.
ID: 63285
Title: Water retention and transmission characteristics of containerized growing media amended with differential proportions of compressed coir bricks.
Author: Simrat Singh, S.S. Kukal and R.K. Dubey
Editor: S.K.Satheesh
Year: 2019
Publisher: Current Science Association and Indian Academy of Sciences.
Source: ENVIS, CES & EWRG, CES
Reference: Current Science Vol. 116 (9) 1580-1587 (2019)
Subject: Water retention and transmission characteristics of containerized growing media amended with differential proportions of compressed coir bricks
Keywords: Coir bricks, hydraulic characteristics, infiltration rate, pot media, water secretion
Abstract: The hydraulic characteristics of growing media play an equally important role as do the architectural properties in the production of ornamental potted plants. The reuse of biological agri-wastes, amended with cocopeat and soil, has potential for ameliorating the hydro-physical environment in growing media substrates, affecting air-water relations. A study was undertaken to evaluate the water retention and transmission characteristics off our biological wastes as base media (farmyard manure (FYM), leaf mould (LM), rice husk ash (RHA) and composted sewage sludge (CSS) amended with different proportions of soil: coir mixture (0:75, 25: 50, 50: 25, 75: 0) respectively. These media mixtures were filled in 3.51 pots. Utilization of coir<50 % (percent of pot volume) as an amendent in FYM and CSS-based media mixtures improved hydraulic characteristics of pot-growing media. The use of RHA amended with soil: coir was not suitable as a growing medium due to higher relative evaporation rate and higher rate of infiltration. Water retention in terms of maximum water-holding capacity and available water increased with coir addition, the increase being enormous with 75% coir. Infiltration rate of water in the media improved with addition of coir (0-50 %), showing a steep increase (4.25-8-10 cm min-1) at highest (75 % proportion of coir. Drainage rate was highest in FYM and LM based media mixture.
Location: T E 15 New Biology building
Literature cited 1: Barrett, G.E., Alexander, P.D., Robinson, J.S. and Bragg, N.C., Achieving environmentally sustainable growing media for soilless plant cultivation systems-a review. Sci. Hortic., 2016, 212, 220-234.
Raviv, M. and Lieth, J.H., Soilless culture, Elsevier, London, UK, 2008, p.608.
Literature cited 2: Al Naddafa, O. Livieratos, I., Stamatakisa, A., Tsirogiannisb, I., Gizasb, G. And Savvasc, d., Hydraulic characteristics of composted pig manure, perlite , and mixtures of them, and their impact on cucumber grown on bags. Sci. Hortic., 2011, 129, 135-141.
Canon, J., Morel, P., Riviera, L.M. and Guillemain,G., Identifying approapriate methodology to diagnose aeration limitations with large peat and bark particles in growing media. Can. J. Soil. Sci., 2010, 90, 481-494.
ID: 63284
Title: Phylogenetic analysis and gene organizing of mitogenome from Mong Cai pig in Vietnam
Author: Thuy Thi Bich Vo, Hieu Duc Nguyen, Tuan Anh Bui, Binch Thi Nguyen Le, Minh Ngoc Nghiem and Hai Van Nong
Editor: S.K.Satheesh
Year: 2019
Publisher: Current Science Association and Indian Academy of Sciences.
Source: ENVIS, CES & EWRG, CES
Reference: Current Science Vol. 116 (9) 1566-1571 (2019)
Subject: Phylogenetic analysis and gene organizing of mitogenome from Mong Cai pig in Vietnam
Keywords: Genetic distance, mitochondrial-genome, Mong Cai pig, Phylogenetic relationships
Abstract: Mong Cai pig (Sus scrofa) is the Vietnamese indigeneous pig breed. The complete mitogenome of this breed has been sequenced and characterized. It is deposited in GenBank with accession number KX147100.Ther were 37 genes (13 protein-coding, 2 rRNA, 22 tRNA genes and a control 9D loop) region) located in 16, 711 bp loof complete mitogenome. The Phylogenetic relationships of both mitogene and D loop region revealed the shortest genetic distance with Lantang pig breeds and close relationship to some other pig breeds in China regions. Taken together, the valuable data provide essential information for genetic and phylogenetic studies in Vietnamese indigenous animal.
Location: T E 15 New Biology building
Literature cited 1: Nguyen, V.T., Tran, D.M and Vo, T.H., The pigs in Vietnam. Agriculture Publishing House, Hanoi, Vietnam (in Vietnamese), 2005.
Watanabe,T., Hayashi,Y., Ogasawara,N. And Tomoita, T., Polymorphism of mitochondrial DNA in pigs based on restriction enonuclease cleavage patterns.Biochem.Genet., 1985, 23, 105-13.
Literature cited 2: Avise, J.C., Mitochondrial DNA and the evolutionary genetics of higher animals.Philos.Trans.R.Soc.B: Biol.Sci, 1986, 312, 325-342.
Huo, J. H. et al., Population phylogenetic analysis and origin of mitochondrial DNA in Chinese domestic pig. Mitochondrial DNA A DNA Mapp Seq.Anal., 2016, 27, 892-895.
ID: 63283
Title: Role of smallholder tea growers in carbon sink management
Author: Rinku Moni Kalita, Ashesh Kumar Das and Arun Jyoti Nath
Editor: S.K.Satheesh
Year: 2019
Publisher: Current Science Association and Indian Academy of Sciences.
Source: ENVIS, CES & EWRG, CES
Reference: Current Science Vol. 116 (9) 1560-1566 (2019)
Subject: Role of smallholder tea growers in carbon sink management
Keywords: Biomass carbon stock, climate change mitigation, phytosociology, smallholder tea growers
Abstract: One-fourth of the total tea production in India comes from smallholder tea estates, thus signifying the importance of this land se in biomass carbon management. As small-scale tea plantation management provides livelihood security to the growers, they prefer to mange such plantation over a long period of time and therefore maintaining a permanent sink of carbon. I n the present study from Barak Valley part of North East India, such smallholder plantations were assessed for carbon stock in tea bushes, shade trees and soil compartment. Allometric equation for tea plants developed from this region was used for estimation of biomass carbon stock in tea bushes, while species-specific volume equations were used for shade trees. Carbon stock of biomass, little layer and soil compartment in smallholder tea plantations were estimated as 30.50 mg, 5.54 Mg and 122.17 ± 9.82 Mg C ha-1 up to 1 m depth respectively. Shade tree compartment contributed a dominant proportion (56.37 %) of biomass and carbon stock compared to tea bushes (25.46%) and litter layer (18.17 %) .Collectively soil compartment holds maximum proportion (80%) of carbon stock followed by shade tree (11%), tea bush (5%) and litter (4 %) compartments in the system. Comparatively carbon stock in smallholder tea estate is lower than many of the tropical and sub-tropical forestry and agroforestry systems. Nontheless, the former sustains the livelihood of millions of farmers across the tropical world and simultaneously maintains a permanent sink of carbon. Further studies are required to better understand the tea agroforestry arrangement to promote sink capability of smallholder tea estates.
Location: T E 15 New Biology building
Literature cited 1: Le Quere, C. Et al., Global carbon budget 2015.Eath Syst .Sci. Data, 2015, 7, 349-396.
Dlugokencky, E. and Tans, P., Trends in atmospheric carbon dioxide. National Oceanic and Atmospheric Administration, Earth System Research Laboratory (NO A A/ESRL), USA; http; //www.esrl.noaa.gov/gmd/ccgg/trends (last accessed on 26 July 2016).
Literature cited 2: Houghton, R.A., Balancing the global carbon budget .Annu.Rev.Earth Planet.Sci. 2007, 35, 313-347.
Kumar, B.M. and Nair, P.K.R. (eds), Carbon Sequestration Potential of Agroforestry Systems, Springer, The Netherlands, 2011.
ID: 63282
Title: Estimation of vulnerability of groundwater in a granite aquifer to pollution using entropy theory
Author: N.C. Mondal
Editor: S.K.Satheesh
Year: 2019
Publisher: Current Science Association and Indian Academy of Sciences.
Source: ENVIS, CES & EWRG, CES
Reference: Current Science Vol. 116 (9) 1555-1559 (2019)
Subject: Estimation of vulnerability of groundwater in a granite aquifer to pollution using entropy theory
Keywords: Entropy theory, DRASTIC map, estimation aquifer vulnerability, groundwater pollution, Peninsular India
Abstract: Entropy theory was used to estimate the vulnerability of groundwater aquifer to pollution which could have a degree of uncertainty of liable different dynamic systems. Mainly three parameters such as precipitation, groundwater in a granitic area from Peninsular India are considered and tested. Results show that interaction entropy is comparatively higher in high risk vulnerability zone, whereas it is lower to negligible in low risk vulnerability areas. Therefore, the risk areas of groundwater pollution could be demarcated by virtue of interaction entropy, which provided the same outcomes as achieved on the DRASTIC map. The significance of this work is in evaluating the degrees of aquifer vulnerability for groundwater pollution. An aquifer vulnerability map could be prepared for the whole country by selecting suitable sites for the development of industries.
Location: T E 15 New Biology building
Literature cited 1: Margat, J., Groundwater Vulnerability to Contamination, BRGM publication, Orleans, France, 1968, p.68.
Iqbal, J., Gorai,AA.K.,Katpal,Y.B.and Pathak,G., Development of GIS-based fuzzy pattern recognition model (modified DRASTIC model) for groundwater vulnerability to pollution assessment.Int.J.Environ.Sci.Technol., 2015, 12, 3161-3174.
Literature cited 2: Wu, H., Chen, J. and Qian, H., A modified DRASSTIC model for assessing contamination risk of groundwater in the northern suburb of Yinchuan, China. Environ. Earth. Sci., 2016, 75, 483.
Subirana, J.M., and casas, A., Groundwater vulnerability to pollutants of the low Llobregat Valley (Barcelona, Spain), Work method and evolution study of the gravel-pit exploitations. In Vulnerability of Soil and Groundwater to Pollutants (eds van Duijvenbooden, W. And Van Waegeningh, H.G), TNO Committee on Hydrological Research, The Hague, 1987, pp.477-479.
ID: 63281
Title: Incidence of fluorosis and urinary fluoride concentration are not always positively correlated with drinking water fluoride level
Author: Arpan Dey Bhowmik, Pallab Shaw, Paritosh Mondal, Chayan Munshi, Swarnak Chaterjee, Shelley Bhattacharya and Ansuman Chattopadhyay
Editor: S.K.Satheesh
Year: 2019
Publisher: Current Science Association and Indian Academy of Sciences.
Source: ENVIS, CES & EWRG, CES
Reference: Current Science Vol. 116 (9) 1551-1554 (2019)
Subject: Incidence of fluorosis and urinary fluoride concentration are not always positively correlated with drinking water fluoride level
Keywords: Dental and Skeletal fluorosis, drinking water, fluoride level, urinary fluoride concentration
Abstract: The aim of this study was to assess the effect of fluoride on human health, focusing on the incidence of fluorosis, urinary fluoride concentration and fluoride level in drinking water in three fluoride-affected villages of Birbhum district, West Bengal, India. In one village urinary fluoride concentration was very high along with the occurrence of severe dental and skeletal fluorosis, though fluoride level in drinking water was within the permissible limit. The present study suggests that fluoride intake through other sources is also an important contributing factor in fluorosis, corroborating previous reports on high fluoride content in crops and vegetables grown in fluoride-affected areas.
Location: T E 15 New Biology building
Literature cited 1: Hem, J.D., Study and Interpretation of the Chemical Characteristic of Natural water, Department of the interior, US Geological Survey, USA, 1985, vol.2254.
Handa, B.K., Geochemistry and genesis of fluoride-containing ground waters in India. Ground Water, 1975, 13 (3), 275-281.
Literature cited 2: Cronin, S.J. and Sharp, D.S., Environmental impacts on health from continuous volcanic activity at Yasur (Tanna) and Ambrym, Vanuatu. Int. J. Environ. Health Res., 2002, 12 (2), 109-123.
Ramanaih, S.V., Mohan, S.V., Rajkumar, B. And Sarma, P.N., Monitoring of fluoride concentration in ground water of Prakasham district in India: correlation with physic-chemical parameters.J.Environ.Sci.Eng., 2006, 48 (2), 129-134.
ID: 63280
Title: Calculation of constructive elements of mobile overpass
Author: Adil Kadyrov, Alesandr Ganyukov, Marat Imanov and Kyrmyzy Balabekova
Editor: S.K.Satheesh
Year: 2019
Publisher: Current Science Association and Indian Academy of Sciences.
Source: ENVIS, CES & EWRG, CES
Reference: Current Science Vol. 116 (9) 1544-1550 (2019)
Subject: Calculation of constructive elements of mobile overpass
Keywords: Constructive elements, mathematical analysis, mobile overcrossing, traffic jam
Abstract: In this article we discuss the construction of modular mobile overcrossing. Calculation of its constructive elements is performed and the optimum length of one module is determined. The purpose of the study is to develop a technique and calculate constructive elements of mobile bridge overcrossing in order to reduce traffic jams. Mathematical analysis, finite elements, finite differences and analytical method of displacements have been used in this study. The optimum length of each module of bridge overcrossing is received. The solution matrix of the method of finite differences allows us to calculate carriageway plate of the overcrossing with a wide variety of geometrical sizes, and also in case of different flexural stiffness properties of the plate and reinforcing elements. Calculation of the spatial frame of bridge overcrossing is performed by precise analytical method of relocation taking into account the bend and torsion of its elements.
Location: T E 15 New Biology building
Literature cited 1: Montgomery, D.C., Introduction to Statistical Quality Control, Wiley, 2012, 7th edn,P. 768.
Altintas,Y., Manufacturing Automation, Metal Cutting Mechanics, Machine Tool Vibrations, and CNC Design, Cambridge University Press, 2012, col.12.no.6, pp.13-14.
Literature cited 2: Tasci, L. And Kuloglu, N., Investigation of new transition curve, Baltic J. Road Bridge Eng., 2011, 6 (1), 23-29.
Ziatdinov, R., Yoshida, N. And Kim, T.-W., Analytic parametric equations of log-aesthetic curves in terms of incomplete gamma functions. Comput. Aided Geometr. Design, 2012, 29 (2), 129-140.
ID: 63279
Title: Dynamic analysis of soft hang-off riser in deep water, coupling the vibration of lateral and longitudinal directions
Author: Liangjie Mao, Song Zeng and Qingyou Liu
Editor: S.K.Satheesh
Year: 2019
Publisher: Current Science Association and Indian Academy of Sciences.
Source: ENVIS, CES & EWRG, CES
Reference: Current Science Vol. 116 (9) 1533-1543 (2019)
Subject: Dynamic analysis of soft hang-off riser in deep water, coupling the vibration of lateral and longitudinal directions
Keywords: Deep water, drilling riser, dynamic analysis, soft hang-off
Abstract: A dynamic analysis model of soft hang-off riser in deep water is developed to analyse the mechanical behaviour of a drilling riser. In this model, the riser is suspended by the tensioner at one end and is free at the other end. The movement of the riser can be considered as a process coupling the vibration of lateral and longitudinal directions. The model is studied using finite element method and verified by the results of ABAQUS and a similar experiment. The riser deformation, bending moment and longitudinal vibration in a well from the South China Sea are analysed and influences of lower marine riser package weight, evacuation and current velocities, desired track of the drilling platform, and length of the hang-off drilling riser on drilling riser deformation are discussed. The results are of significant importance for the practical operation of soft hang-off drilling riser during evacuation.
Location: T E 15 New Biology building
Literature cited 1: Xu, L., Zhou,J., Wang,R., Jinag, s. and Sheng,L., Analysis of deep water drilling platform evacuation from imminent typhoons with riser hang-off in South China Sea.China Offshore Oil and Gas, 2015, 27 (3), 101-107.
Mao, L., Liu, Q., Zhou, S., Wang, G. And Fu, Q., Deep water drilling riser mechanical behaviour analysis considering considering actual riser string configuration. J. Nat. Gas Sci. Eng., 2016, 33, 240-254.
Literature cited 2: Fan, H., Li., C., Wang., Z., Xu., L., Wang., Y. And Feng., X., Dynamic analysis of a hang-off drilling riser considering internal solitary wave and vessel motion. J. Nat. Gas Sci. Eng., 2017, 37, 512-522.
Stedddum, R., The management of long, suspended strings of tubular from floating drilling vessels. In Offshore Technology Conference, Houston, Texas, 2003.
ID: 63278
Title: Dominant technology identification of wind power generation
Author: Hongying Wang and Bing Sun
Editor: S.K.Satheesh
Year: 2019
Publisher: Current Science Association and Indian Academy of Sciences.
Source: ENVIS, CES & EWRG, CES
Reference: Current Science Vol. 116 (9) 1525-1532 (2019)
Subject: Dominant technology identification of wind power generation
Keywords: Leading technology identification, patent citation, search algorithms, visual analysis model, wind power generation
Abstract: Wind energy, the most commercialized prospect of renewable energy, is being developed and utilized on a large scale. Major institutions and universities have invested a lot of manpower, capital and technology in researching the wind power technology, which has made remarkable progress. In the era of green economy, the leading technology of wind power deserves more attention. Dominant technology represents the development direction of technology area. Identification of the dominant technology is of great significance for the technological choice and strategic layout of enterprises. In contrast to traditional technology identification methods, here we propose a visual analysis model based on patent citation relationship. First, the patent mutual citation data are input into the visualization software Gephi to identify the leading technology in the visual processing stage. The Page Rank algorithm is used to cross contrast the technical value to build the leading technology recognition model. Second, we evaluate the technical value of each patent with five indices, including ‘number of patent cited’, ‘patent number of the same family’, ‘scope of patent coverage’, ‘claim number of each patent’, and ‘number of patent litigations’ to verify the accuracy of the visual model. Taking the database of wind power generation technology from European Patent Office as a n example, we obtain 7421 patents from 1900 to 2017.The results of visual processing, evaluation of the index an PageRank judgement show that the visual model has a significant effect in the identification of the leading technology. The results also explain the applicability of the PageRank algorithm and the five indicators are the most scientific and reasonable for dominant technology identification.
Location: T E 15 New Biology building
Literature cited 1: Li, J. et al. Current situation and prospect of wind power generation in China. China Sci. Technol. Invest., 2007, 11 (1), 25-28.
Malone, E., Hultman, N.E., Anderson, K.L .and Romeiro, V., Stories about ourselves: how national narratives influence the diffusion of large-scale energy technologies. Enrg. Res. Soc. Sci., 2017, 31 (9), 70-76.
Literature cited 2: Squarez, F.F., Batles for technological dominance: an integrative framework .Res.Policy, 2004, 39 (7), 271-286.
Sun, M., Gao, C., Jia. C., Ni., F.D.F. and Zhang, J., The selection and promotion of core technology to China’s energy goals.Enrg.Proc., 2016, 104 (3), 233-238.