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ID: 65110
Title: Performance study of compression ignition engine using biomass-derived producer gas from downdraft gasifier and diesel in dual fuel mode
Author: J.V. Tirkey
Editor: Prof D.S.Bhargava and Dr. Jyoti Verma
Year: 2018
Publisher: Kalpana Corporation
Source: ENVIS, CES & EWRG, CES
Reference: Indian Journal of Environmental Protection Vol 38 (6) June 18 page 459-466
Subject: Performance study of compression ignition engine using biomass-derived producer gas from downdraft gasifier and diesel in dual fuel mode
Keywords: Biomass,Gasification, Downdraft gasifier,producer gas, Specific energy consumption, Emission
Abstract: Energy is one of the key factors for the economic and social development of any Country. Fossil fuels costs and stringent environment law has forced the people to grow interest in the alternative fuel, like biodiesel, alcohol, producer gas, biogas, NCG and LPG. Producer gas is one of the suitable substitutes for diesel in the compression ignition (CI) engine. The gasification technique is used to generate producer gas in which utilize partial combustion of carbonaceous solid fuel/biomass. In this study, downdraft gasifier system fed with the wood chips and cow dung was used to generate producer gas. The generated produer gas may have some impurity, such as tar, particulate and some other organic matters which may cause corrosion and erosion in the engine parts if directly use. Therefore, cleaning of the producer gas is very important. The cleaning of producer gas was performed by passing it through the scrubber, pair of cyclone separator and finally a compound filter system having a block or rice husk, sawdust and cotton filter .The supply line of cleaned producer gas was connected to the air inlet manifold for dual fuel mode engine operation. The performance and emission characteristic of the double cylinder compression ignition engine was analyzed through dua fuels mode operation at different load conditions to achieve maximum diesel savings. It was observed that specific energy consumptions in the dual fuel mode of operation were higher at all load conditions. It was seen that producer gas from wood and cow dung. Saves up to 60% of diesel fuel in dual mode whereas the brake thermal efficiency in dual fuel mode operation was lower than that of pure diesel. It was also observed that NOx emission was very low in dual fuel which is great advantage of dual fuel mode over diesel fuel. However, CO and HC emission were higher in comparison to pure diesel.
Location: T E 15 New Biology building
Literature cited 1: Banapurmath, N.R., P.G. Tewari and R.S. Hosmath.2008. Experimental investigations of a four-stroke single cylinder direct injection diesel engine operated on dual fuel mode with producer gas as inducted fuel and honge oil and its methyl ester (HOME) as injected fuels. Renewable Energy.33: 2007-2018. Banapurmath, N.R., et al. 2009.Combustion characterisitcs of 4-stroke Ci engine operated on honge oil, neem and rice bran oils when directly injected and dual fueled with producer gas induction. Renewable Energy, 34: 1877-1884.
Literature cited 2: Benkeblia, Noureddine. 2016.Sustainable agriculture and new biotechnologies. CRC Press. Das, D.K., S.P. Dash and M.K. Ghosal 2012.Performance evaluation of a diesel engine by using producer gas from some under-utilized biomass and dual-fuel mode of diesel cum producer gas. J. Cent. South Univ., 19: 1583-1589.

ID: 65109
Title: Development of reduced order model for a 500 Mw utility boiler in a thermal power plant
Author: P.Rajalakshymy,S.Dharmalingam and P. Subha Hency Jims
Editor: Prof D.S.Bhargava and Dr. Jyoti Verma
Year: 2018
Publisher: Kalpana Corporation
Source: ENVIS, CES & EWRG, CES
Reference: Indian Journal of Environmental Protection Vol 38 (6) June 18 page 446-458
Subject: Development of reduced order model for a 500 Mw utility boiler in a thermal power plant
Keywords: Pollution,Boiler efficiency, reduced order model, utility boiler
Abstract: Environmental pollution caused by coal-based utility thermal power plants worldwide is one of the major sources of pollution. The current global scenario faced by power plants is characterized by many challenging problems that include pressure to meet stringent government requirements for minimization of environmental impact, competition among independent power producers, coal quality and availability constraints, cycling loading, power generation technology and many others. This demands an increased in the boiler efficiency. One of the most effective means of boiler efficiency enhancement is an improvement of the steam generation control system. An essential tool for such an improvement in a steam generation is to develop a valid boiler model. It is a challenging task to accurately model a complex real-time system, like utility boilers which involve a lot of subsystems and to strike a balance between fidelity and simplicity. This paper focus on deriving a simplified but still accurate procedure for developing the reduced order models of a 500 Mw utility boiler and its subsystems. The model thus developed has been validated and the results obtained developed model are in good agreement with the real-time system.
Location: T E 15 New Biology building
Literature cited 1: Andearson, P.M.1974.Modelling thermal power plants for dynamic stability studies. Cyclone Copy Center, lowa, U.S.A. Dharmalingam, S., L. Sivakumar and K.K. Anil Kumar.2010. Simplified approximations for the accumulation value and time constant for an evaporator system in drum type boilers. J. Power and Energy. 224 (1): 59-67.
Literature cited 2: Dharmalingam,S., L. Sivakumar and M. Umapathy. 2011.Optimizing boiler performance for varying coals using mathematical modelling and embedded controller.54th ISA POWID Symposium 2011.Proceedings, vol.487, pp 298-309. Dharmalingam,S., et al. 2011.Improved method to mitigate the effect of coal fuel switching on critical process parameters of a steam generator in a thermal power plant. J.Power and Energy.225 (8): 1026-1040.

ID: 65108
Title: Experimental study on pervious concrete reinforced with coconut fibre
Author: Manoj Nallanathel,Ramesh Baskar,Nivedha John and P. Harsha Vardhan
Editor: Prof D.S.Bhargava and Dr. Jyoti Verma
Year: 2018
Publisher: Kalpana Corporation
Source: ENVIS, CES & EWRG, CES
Reference: Indian Journal of Environmental Protection Vol 38 (4) April 18 page 337-345.
Subject: Experimental study on pervious concrete reinforced with coconut fibre
Keywords: Compressive strength, permeability, porosity, density, flexural strength, coconut fibre
Abstract: Pervious concrete is also called as porous concrete or permeable concrete. It is a special type of concrete which will allow water from precipitation and other types of sources to pass through it directly which reduces runoff from a site and allowing groundwater recharge. Itis made of using large aggreagate and water with little no fine aggreagates. It consists of cement, coarse aggregate and water with little fine aggregates. The strength of pervious concrete is more important as permeability characteristics, its strength is very less when compared with normal concrete. Studies indicate that pervious concrete low compressive strength capacity than conventional concrete and will only support light traffic loadings. The important features of pervious concrete are its strength and properties, like density, permeability and porosity. Alarming declination in groundwater levels in the nearby controlled wells show a decreasing trend alarmingly. The only source of improving groundwater level is by ground water recharge, at present most of the runoff is being let out and at last it joins the sea, if we could conserve this runoff and facilitate it to recharge the groundwater then some solace can be achieved, and the groundwater level can be improved. The pervious concrete is a concrete which is having porosity more than 30% generally which will facilitate water to infiltrate. So to increase its structural properties without any effect on hydrological properties fibers are added to the design mix which will increase the strength of pervious concrete. So coconut fibre which is natural resource and economical in cost wise is used in the project to give best results. Coconut fibre is available in large quantity at the test site, which makes it as a quite viable as reinforcement material in pervious concrete. This study aimed at analyzing the variation in the strength of pervious concrete reinforced with coconut fibre at varying fibre contents and to compare it with that of conventional pervious concrete. The various strength aspects analyzed are the compressive and flexural strength of the pervious concrete reinforced with coconut fibre at varying percentages (0.25%, 1% and 2% by the weight of cement) of fibre.
Location: T E 15 New Biology building
Literature cited 1: Ali Majid.2010.International Conference on sustainable construction materials and technologies. Ali, Majid, Anthony Liu Housou and Nawawi Chou. 2011.Mechanical and dynamic properties of coconut fibre reinforced concrete, Construction and Building Mater., 30 (2011) 814-825.
Literature cited 2: Chavada, Vijay and A.A. Parikh. 2013.An application review of coir fibre reinforced concrete. 2(4). Haselbach, L. 2009.Pervious concrete and mitigation of the urban heat island effect.88th Annual meeting Transportation Res. Board.

ID: 65107
Title: Environmental impact on magnetocaloric effect of nanofluid in a refrigeration system
Author: S.P. Venkatesan,J.Hemanandh, R. Devaraj and S. Ganesan
Editor: Prof D.S.Bhargava and Dr. Jyoti Verma
Year: 2018
Publisher: Kalpana Corporation
Source: ENVIS, CES & EWRG, CES
Reference: Indian Journal of Environmental Protection Vol 38 (4) April 18 page 332-336.
Subject: Environmental impact on magnetocaloric effect of nanofluid in a refrigeration system
Keywords: Cobalt ferrite, nanofluid, magnetocaloric effet, magnetic cooling, coefficient of performance
Abstract: This paper describes the development and design of a magnetic refrigeration system. The principle of operation of the presented refrigeration system is based on the magnetocaloric effect of nanofluid through a magnetic field. Cobalt ferrite (COFe2O4) is used as the magnetocaloric nanoparticle in the nanofluid. With the help of magnetic field, the high temperature is attained to nanofluid and the temperature reduced to extremely low when the magnetic field is removed. From the experimental results, it is found that it is a potential technique and has prominent advantages over the currently used vapour compression refrigeration technique, in terms of its high efficiency and eco-friendliness.
Location: T E 15 New Biology building
Literature cited 1: Gao, X.Q., et al.2016.Improvement of a room-temperature magnetic refrigerator combined with stirling cycle refrigeration effect. Int. J. Refrigeration.67:330-335. Gokhanunlu, C. et al.2017.Magnetocaloric effect La0.7 Ndx Ba (0.3-x) MnO3 (X=0, 0.05, 0.1) perovskite maganites. J. Alloys and Compounds.704:58-63.
Literature cited 2: Khan, Aroosha A., et al. 2017.Structural, magnetic and magnetocaloric properties of CoFe2-xMoxO4 (0.0 x 0.3) ferrites. Ceramics Int., In Press, Available online. Kim, Young II, Don Kim and Choong Sub Lee.2003. Synthesis and characterization of CoFe204 magnetic nanaoparticles prepared by temperature-controlled co-precipitation method. Physics B: Condensed Matter. 337: 42-51.

ID: 65106
Title: Environmental news reporting: the perspectives of Nigerian and Indian Newspapers
Author: Sunday Goodness John and Mehak Jonjua
Editor: Prof D.S.Bhargava and Dr. Jyoti Verma
Year: 2018
Publisher: Kalpana Corporation
Source: ENVIS, CES & EWRG, CES
Reference: Indian Journal of Environmental Protection Vol 38 (4) April 18 page 319-331.
Subject: Environmental news reporting: the perspectives of Nigerian and Indian Newspapers
Keywords: Nigerian newspapers, Indian newspaeprs, Environmntal issues, Climte change, Air pollution
Abstract: This comparative study examined the coverage of environmental issues by selected Nigerian and Indian newspapers. Two national newspapers, The Guardian and The Vanguard were chosen from Nigeria and the Delhi editions of the Hindu and the Times of India were selected from India. The daily editions of these newspapers from July-December 2016 were content analyzed to situate the reportage of environmental news in each country and compare their similarities and peculiarities. The results of the study indicated that the newspapers from both countries focused on environmental issue peculiar to their operational environments. Indian newspapers reported 71.86% of all environmental news published by the newspaper sampled within the period studied, while Nigerian newspapers reported 28.14 %. Indian newspapers also gave better prominence, in terms of placement, to the environmental stories published than Nigerian newspapers. The study concluded that newspapers in both countries do not give enough coverage to environmental issues.
Location: T E 15 New Biology building
Literature cited 1: Agwu, A.E. and C.J. Amu. 2013.Farming of climate change news in four national daily newspapers in Southern Nigeria. International Conference on Climate Change effects: Impacts world 2013.Potsdam, Germany. Air pollution in India: Real-time Air quality Index. 2016.Retrieved from http://aqicn.org/map/india.
Literature cited 2: Aliagan, I.Z. 2015.Examining survival strategies employed by Nigerian newspapers against loss of readership and revenues. New Media and Mass Communication, 35. Retrieved from http://www/all-about-india.com. All about India. 2017.Environmental issues in India. Retrieved from http://www/all-about-india.com.

ID: 65105
Title: Experimental investigations of peroperties of oil contaminated clayey sand
Author: G.Sireesha and C. Grace Evangelin
Editor: Prof D.S.Bhargava and Dr. Jyoti Verma
Year: 2018
Publisher: Kalpana Corporation
Source: ENVIS, CES & EWRG, CES
Reference: Indian Journal of Environmental Protection Vol 38 (4) April 18 page 314-318
Subject: Experimental investigations of peroperties of oil contaminated clayey sand
Keywords: Unconfined compressive strength, Oil contamination, Maximum dry density (MDD), Optimum moisture content (OMC) , California bearing ratio (CBR)
Abstract: This study has been carried out to observe the effect of certain oils, such as waste engine oil and transformer oil on the soil. The effect of oil contamination on index and engineering properties, such as liquid limit, plastic limit, free swell index, compaction characteristics unconfined compressive strength and California bearing a ratio of soil was investigated. Commercially available waste engine oil and transformer oil are used for this investigation. The percentage of oil is varied from 2 to 10 % in increment of2% by weight of soil. The strength obtained decreases and hence oi contamination of soil is not desirable. Soaked and unsoaked California bearing ratio (CBR) tests were conducted on oil mixed soil. A maximum value of California bearing ratio is obtained when 6% was engine oil and transformer oil is mixed with soil.
Location: T E 15 New Biology building
Literature cited 1: Balan. Sony, K.Y. Raneesh and M. Harikumar. 2016.Contamination of fine-grained soils by oil spillage: Effects and remediation by electrochemical technique. Int. J. Constructive Res. in Civil Eng., 2(2): 32-37. Elisha, Adejumo T. 2012.Effect of crude oil contamination on the geotechnical properties of soft clay soils of Niger delta region of Nigeria. Electronic J. Geotech. Eng., 17:1929-1938.
Literature cited 2: Olchawa, Andrzej and M. Kumor. 2007.Compressibility of organic soils polluted with diesel oil. Archives of Hydro-Engineering and Env. Mechanics. 54(4): 299-307. Otunyo ,Amaziah Walter and Anele Omasirichi. 2015.Effect of waste engine oil contamination of geotechnical properties of clay soil. European Int.J. Sci and Tech., 4 (8) :28-38.

ID: 65104
Title: A study of consumer's behaviour towards green electronic prducts:An application of theory of planned behaviour
Author: Rakesh Kumar
Editor: Prof D.S.Bhargava and Dr. Jyoti Verma
Year: 2018
Publisher: Kalpana Corporation
Source: ENVIS, CES & EWRG, CES
Reference: Indian Journal of Environmental Protection Vol 38 (4) April 18 page 302-313.
Subject: A study of consumer's behaviour towards green electronic prducts:An application of theory of planned behaviour
Keywords: Envronment-friendly products ,Green electronic goods, theory of planned behaviour, factor analysis, CFA, SEM
Abstract: The purpose of the present study is to investigate the major factors influencing consumer's behaviour towards green electronic products. The study used framework of Ajzen's (1991) theory of planned behaviour, which is widely used to explain and predict individual's behaviour not only in phycology but also in many other areas of social science. As per the theory of planned behaviour main determinants of individual's behaviour are their attitude towards performing that particular behaviour, his/her control on performing a behaviour and whether this behaviour is desirable or not in the society (subjective norms) .The study was conducted using descriptive research design (cross-sectional) .The questionnaire was developed using previous studies Ajzen, 1991) and all the four constructs of the model-Attitude, subjective norms and perceived behavioral control and behavioral intention were measured by three statements on seven-point Likert scale. The questionnaire also inquiries about basic demogrphic information of the respondents was selected from the city of Lucknow using judgemental sampling method. Structural equation modelling with Amos 20.0 was used to analyze the data. The results of the study confirms the ability of theory of planned behaviour to explain determinants of consumer's behaviour towards green electronic products. Attitude and subjective norms were found to have a significant
Location: T E 15 New Biology building
Literature cited 1: Ahire, S.L.D.Y. Golhar and M.A. Waller.1996. Development and validation of TQM implementation constructs. Development and validation of TQM implementation constructs. Decision Sci., 27 (1): 23-56. Ajjan, H. and R. Hartshorne. 2008.Investigating faculty decisions to adopt web 2.0 technologies: Theory and empirical tests. The internet and higher Education.11 (2): 71-80.
Literature cited 2: Ajzen, I.1985.From intention to actions: A theory of planned behaviour. In Action control: From cognitions to behaviour. Ed J. Kuhl and J. Beckman. Springer-Verlag. New York, NY. pp 11-39. Ajzen, I.1991.The theory o planned behaviour. Organizational Behaviour and Human Decision Processes.50: 179-211.

ID: 65103
Title: Assessment of municipal solid waste management of Amravati city and sustainable remedies
Author: K.J.Gawai and D.S.Ramteke
Editor: Prof D.S.Bhargava and Dr. Jyoti Verma
Year: 2018
Publisher: Kalpana Corporation
Source: ENVIS, CES & EWRG, CES
Reference: Indian Journal of Environmental Protection Vol 38 (4) April 18 page 291-301.
Subject: Assesment of municipal solid waste managemtn of Amravati city and sustainable remedies
Keywords: Solid waste managemnt (SWM), Sustainable, Technological options, integrated sustainable waste management (ISWM)
Abstract: Increasing population and urbanization crated various problems amongst which solid waste management (SWM) is the one. The heap of waste and resulted hills of it has become the problem all over the world. It not only arouses the problem of public health but also of environmental deterioration. Due to this solid waste managemnt has become a top priority. The waste is collected by the door-to-door collection system, transported and just dumped and levelled on the dumping site at Sukali dumping depot without any scientific process. In this paper, municipal solid waste managemnt practices of Amravati city is assessed, and sustainable remedies are put forth. Various problems associated with its management are investigated. The study was concluded with suggestions and technological options suitable for management and disposal of solid waste of the city as a step for integrated Sustainable Waste Management (ISWM) for better future.
Location: T E 15 New Biology building
Literature cited 1: Abazeri,M. 2014.Rethinking waste in India: Innovative initiatives in waste management .Master Degree Thesis. Science Po. PSIA. Babatunde, B.B. et al.2013.Comparative analysis of municipal solid waste (MSW) composition in three local government areas in rivers State, Nigeria. African J. Env. Sci. and Tech, 7 (9): 874-881.
Literature cited 2: Damodaran, V.K. 2010.eview of strategy, framework and technological options for municipal solid waste management. Kerala Environment Congress-2010.Thiruvananthapuram. Harilala, C.C., G. Pradip Kumar and C.P. Ravindran. 2007. Quantification, characterization and management of solid waste from Mahe, Union Territory of Pondicherry.

ID: 65102
Title: Study on altered depiction of pond water quality during post-immersion of idols
Author: Iqbal Ansari,Ritesh Kumar, Muniyam Sundarajan,Sadananad Sharma and Neha Kumari
Editor: Prof D.S.Bhargava and Dr. Jyoti Verma
Year: 2018
Publisher: Kalpana Corporation
Source: ENVIS, CES & EWRG, CES
Reference: Indian Journal of Environmental Protection Vol 38 (4) April 18 page 278-290
Subject: Study on altered depiction of pond water quality during post-immersion of idols
Keywords: Idol immersion, water pollution, integrated water quality analysis,Pearson's correlation coefficients, Pond water
Abstract: Festivals are an integral part of rich and diverse cultural heritage of India. But this cultural activity also has a centre of pollution. The activities of immersing idols and throwing other materials of various rituals are the sources of pollution which deteriorate the quality of ponds, lakes and rivers in India. Artificial paints used for idols comprise heavy metals, which are potentially hazardous on bioaccumulation and biomagnifications as they enter into the food chain. The present study has been made to ascertain the truth that idol immersion is a source of water pollution and addresses the contamination of chemical pollutants caused by such activities. The result reveals that the water quality parameters, such as total hardness, total suspended solids, total dissolved solids, biochemical oxygen demand, chemical oxygen demand and chloride were found to be drastically increased after the immersion of idols in the pond. The integrated quality analysis using sensitivity functions defined for each parameter over the quality interval constituted by the lower permissible limits, desirable limits and maximum permissible limits of the accepted standards has been carried out for detecting the overall quality alteration due to idol immersion for assessing the damage to the environment in numerical value.
Location: T E 15 New Biology building
Literature cited 1: APHA. 2005.Standard methods for the examination of water and waste water (21st edn).American Public Health Association, Washington D.C. pp 256 Bhattacharya, S., et al. 2014.Effects of idol immersion on the water quality parameters of Indian water bodies: Environmental health perpectives. Int. Letters of chemistry, Physics and Astronomy.20 (2): 234-263.
Literature cited 2: BIS.1981. Tolerance limits for industrial effluents.IS-2490.Bureau of Indian Standards, New Delhi. BIS.1981. Tolerance limits for industrial effluents. IS.2490.Bureau of Indian Standards, New Delhi.

ID: 65101
Title: Studies on Pongamia oil methyl ester fueled direct injection diesel engine to reduce harmful emissions
Author: M. Prabhakar, S.Sendilvelan and L.R.Sassykova
Editor: Prof D.S.Bhargava and Dr. Jyoti Verma
Year: 2018
Publisher: Current Science Association and Indian Academy of Sciences.
Source: ENVIS, CES & EWRG, CES
Reference: Indian Journal of Environmental Protection Vol 38 (4) April 18 page 269-277.
Subject: Studies on Pongamia oil methyl ester fueled direct injection diesel engine to reduce harmful emissions
Keywords: Biodiesel,Pongmia methyl ester (PME), Diethyl ester (DEE), Emission reduction
Abstract: Oil is very important item in our lives and also is a major life line in a Nation's development. It is such as essential item that without oil the entire world will come to a grinding halt. The availability of oil becoming scarce has let us to explore for new renewable sources of oil, that shall reduce the dependence on conventional petroleum sources, at the same time build and protect a harmonious relationship between nature and human lives. The environment is to be safe and clean with less toxic gas emissions. Several alternative fuels are considered for use in diesel engines. The potential alternative fuels are liquid fuels, like vegetable oil and vegetable oil methyl ester (biodiesel).In the present work, the emission characteristics were experimentally investigated using pongamia methyl ester (PME) blends with diesel (B20) along with 10 % diethyl ester (DEE) additive. From this analysis, it was found that the maximum reduction in exhaust smoke level was 22% and he carbon monoxide level decreased by 16.6% with the 20% pongamiamethyl ester as compared to that of the diesel at full load. The effect of di-ethyl esters fuel additive with 20% pongamia methyl ester showed an improvement in the emission levels with 6.6% reduction in exhaust smoke level and 50% and 17% reduction in the carbon monoxide (CO) and hydrocarbon (HC) emissions respectively as compared to that of diesel. The oxides of nitrogen emission were found reduced to 17.47% for 10% diethyl ester with B20 blend compared to that diesel fuel.
Location: T E 15 New Biology building
Literature cited 1: Abdullah, N.H., et al. 2013.Biodiesel production based on waste cooking oil (WCO), Int. J. Mater. Sci. Eng., 94-99. Baiseitoy ,D.A. et al.2015.The sorents for collection of oil and petroleum of the phytogenesis.Int.J.Chem.Sci.,13: 1027-1033.
Literature cited 2: Bilgin, A., et al. 2015.Determination of transesterification reaction parameters giving the lowest viscosity waste cooking oil biodiesel. Procedia-Soc..Behau Sci., 195:2492-2500. Enweremadu, C.C. and M.M. Mbarawa.2009.Technical aspects of production and analysis of biodiesel from used cooking oil-A Review. Renew. Sustain. Energy Rev., 13: 2205-2224.

ID: 65100
Title: Implications of single-stage deep learning networks in real-time zooplankton identification
Author: Sadaf Ansari, Dattesh V. Desai , Aya Saad and Annette Stahl
Editor: S.K.Satheesh
Year: 2023
Publisher: Current Science Association and Indian Academy of Sciences.
Source: ENVIS, CES & EWRG, CES
Reference: Current Science Vol. 125 (11) 1259-1266 10 Dec (2023)
Subject: Implications of single-stage deep learning networks in real-time zooplankton identification
Keywords: Artificial intelligence, deep learning networks, imaging, marine biology, zooplankton
Abstract: Zooplankton are key ecological components of the marine food web. Currently, laboratory-based methods of zooplankton identification are manual, time-consuming, prone to human error and require expert taxonomists. Therefore, alternative methods are needed. In this study, we describe, implement and compare the performance of six state-of-the-art single-stage deep learning models for automated zooplankton identification. The highest prediction accuracy achieved is 99.50%. The fastest detection speed is 285 images per second, making the models suitable for real-time zooplankton classification. We validate the predictions of the generated models on unseen images. The results demonstrate the capabilities of the latest deep learning models in zooplankton identification
Location: T E 15 New Biology building
Literature cited 1: Richardson, A. J., In hot water: zooplankton and climate change. ICES J. Mar. Sci., 2008, 65(3), 279–295. Bucklini, A., Lindeque, P. K., Rodgrigues-Ezpeleta, Albaina, A. and Lehtiniemi, M., Metabarcoding of marine zooplankton: prospects, progress and pitfalls. J. Plankton Res., 2016, 38(3), 393–400.
Literature cited 2: Knowlton, N., Molecular genetic analyses of species boundaries in the sea. Hydrobiology, 2000, 420, 73–90. Lindsay, D. J. et al., The perils of online biogeographic databases: a case study with the ‘monospecific’ genus Aegina (Cnidaria, Hydrozoa, Narcomed

ID: 65099
Title: GC–MS profiling of phytocompounds in the leaves of Vitex negundo L.
Author: Sangeetha Kaliyannagounder , Swaminathan Chitraputhirapillai, Renuka Raman , Vellaikumar Sampathrajan, Nivethadevi Palani and Sivasankari Baskaran
Editor: S.K.Satheesh
Year: 2023
Publisher: Current Science Association and Indian Academy of Sciences.
Source: ENVIS, CES & EWRG, CES
Reference: Current Science Vol. 125 (11) 1250-1258 10 Dec (2023)
Subject: GC–MS profiling of phytocompounds in the leaves of Vitex negundo L.
Keywords: Biopesticide, secondary metabolites, synthetic chemicals, terpenoids, Vitex negund
Abstract: The leaves of Vitex negundo L., popularly known as notchi in Tamil Nadu, India, contain a wide variety of secondary metabolites and phytochemicals. Gas chromatography–mass spectrometry has been employed in the present study to detect and classify bioactive chemicals using three distinct extraction solvents: dichloromethane, milli-Q water and methanol. We have isolated 65 phytocompounds in total qualitatively. The bulk of these substances belong to the terpenoid class of secondary metabolites, which play a role in plant defence systems and natural pollination. Thus, it has been proposed that notchi leaf extracts could be used instead of synthetic chemicals and also as a biopesticide.
Location: T E 15 New Biology building
Literature cited 1: Singh, B. and Kaur, A., Control of insect pest in crop plants and stored food grains using plant saponins: a review. LWT Food Sci. Technol., 2018, 87, 93–101. Cothran, R. D., Brown, J. M. and Relyea, R. A., Proximity to agriculture is correlated with pesticide tolerance: evidence for the evolution of amphibian resistance to modern pesticides. Evol. Appl., 2013, 6, 832–841.
Literature cited 2: Saravi, S. S. S. and Shokrzadeh, M., Role of pesticides in human life in the modern age: a review. In Pesticides in the Modern World – Risks and Benefits (ed. Stoytcheva, M.), IntechOpen, Rijeka, Croatia, 2011, pp. 3–12. Gill, H. K. and Garg, H., Pesticide: environmental impacts and management strategies. In Pesticides – Toxic Effects (eds Larramendy, M. L. and Soloneski, S.), IntechOpen, Rijeka, Croatia, 2014, pp. 187–230

ID: 65098
Title: A machine learning model for studying the seasonality of aphids in wheat-based cropping systems of the terai zone of Darjeeling, West Bengal, India
Author: Biwash Gurung , Suprakash Pal , Md. Wasim Reza , Bishal Gurung and Achal Lama
Editor: S.K.Satheesh
Year: 2023
Publisher: Current Science Association and Indian Academy of Sciences.
Source: ENVIS, CES & EWRG, CES
Reference: Current Science Vol. 125 (11) 1244-1249 10 Dec (2023)
Subject: A machine learning model for studying the seasonality of aphids in wheat-based cropping systems of the terai zone of Darjeeling, West Bengal, India
Keywords: Aphid infestation, forewarning model, machine learning, random forest, weather parameters, wheat-based cropping system
Abstract: The primary goal of this study is to determine the effect of weather variables on aphid populations and development of a weather-based forewarning model using a powerful machine learning technique called random forest. The developed model could be employed to formulate proper management strategies to help the farming community control aphid infestation
Location: T E 15 New Biology building
Literature cited 1: Nagarajan, S., Wheat production in India: a success story and future strategies. Indian Farm., 2000, 9, 915. Khakwani, A. A., Dennett, M. D., Muni, M. and Abid, M., Growth and yield response of wheat varieties to water stress at booting and anthesis stages of development. Pak. J. Biotechnol., 2012, 44, 879–886.
Literature cited 2: FAOSTAT, Food and Agriculture Organization of the United Nations Statistics Division, FAO, Rome, 2014. Hatchett, A. H., Stacks, K. J. and Webster, J. A., Insect and mite pests of wheat. In Wheat and Wheat Important (ed. Heyne, E. G.), Madison, Wisconsin, USA, 1987, p. 625.

ID: 65097
Title: Do the information networks of farmers differ across gender? Evidence from the hills of Uttarakhand, India using social network analysis
Author: Kushagra Joshi and Jyoti Rawal
Editor: S.K.Satheesh
Year: 2023
Publisher: Current Science Association and Indian Academy of Sciences.
Source: ENVIS, CES & EWRG, CES
Reference: Current Science Vol. 125 (11) 1235-1243 10 Dec (2023)
Subject: Do the information networks of farmers differ across gender? Evidence from the hills of Uttarakhand, India using social network analysis
Keywords: Gender, hill regions, information usage pattern, social network analysis, vegetable growers.
Abstract: Vegetable growers need information on improved cultivars and production practices, and usually tend to receive this information from informal sources due to certain constraints. This study describes the information networks of hill farmers across genders for accessing data about vegetable cultivation. Through simple random sampling, two hill districts in Uttarakhand, India, were chosen and 320 vegetable growers were selected. The results showed that in comparison to female farmers, the social networks of male farmers frequently included formal information sources. The main factors determining the pattern of information network usage among women farmers were education, farming experience, hours dedicated to farming, group membership and contact with extension agencies, whereas income, landholding, access to mobile phones, contact with extension agencies and frequency of contact affected the information network usage among male farmers. The study gives suggestions for policymakers and programme planners to bridge the gender divide by devising effective information dissemination in the hill regions.
Location: T E 15 New Biology building
Literature cited 1: Ayanyemi, O. O., The role of information in enhancing the status of women in developing countries. Nigerbiblos, 2006, 1, 151–170. Bates, M. J., Fundamental of forms of information. J. Am. Soc. Inf. Sci. Technol., 2012, 57(8), 1033–1045.
Literature cited 2: Taylor, S. and Boubakri, N., Women and finance: unlocking Africa’s hidden growth reserve. In Financial Inclusion in Africa (eds Triki, T. and Faye, I.), African Development Bank Group, Tunis, Tunisia, 2013, pp. 75–83. FAO, Women’s access to rural finance: challenges and opportunities, Food and Agriculture Organization of the United Nations, Rome, Italy, 2019, License: CC BY-NC-SA 3.0 IGO.

ID: 65096
Title: Ancient megafloods of Mars: interpretations from MOM MCC data and hydrodynamic simulations
Author: Praveen Kumar Thakur, Sanjay Kumar Dwivedi , Sehajpal Singh , Pankaj Ramji Dhote and Raghavendra Pratap Singh
Editor: S.K.Satheesh
Year: 2023
Publisher: Current Science Association and Indian Academy of Sciences.
Source: ENVIS, CES & EWRG, CES
Reference: Current Science Vol. 125 (11) 1216-1226 10 Dec (2023)
Subject: Ancient megafloods of Mars: interpretations from MOM MCC data and hydrodynamic simulations
Keywords: Ancient megafloods, hydraulic parameters, hydrodynamic model, Martian outflow channels.
Abstract: Recent studies have brought attention to the enormous megafloods and the considerable amount of water found on and beneath the surface of Mars. These ancient megafloods have not only carved out Martian surface, but also altered its climate. In the present study, ancient flooding of four Martian water channels (Mangala, Kasei, Ravi and Ma’adim) has been examined. The MCC dataset of MOM and MOLA-HRSC DEM were utilized to identify and estimate the hydraulic parameters of the channels. The estimated parameters were used in empirical equations to determine the flood velocity and discharge of Mangala (9.7 × 106 to 1 × 108 m3 /sec), Ravi (6.5 × 107 to 9.6 × 108 m3 /sec) and Ma’adim Valles (1.0 × 108 to 1.5 × 109 m3 /sec). Estimated discharge magnitudes were in line with previous studies, except for Kasei Valles (2.6 × 108 to 5.3 × 109 m3 /sec), where overestimation was observed. The two-dimensional simulations of full-bank floods were performed using the hydrodynamic model to generate scenarios of palaeomegafloods in the four valleys.
Location: T E 15 New Biology building
Literature cited 1: Carr, M. H. and Carr, G. B. A. M. H., Water on Mars, Oxford University Press, University of Michigan, 1996, p. 229. Nazari-Sharabian, M., Aghababaei, M., Karakouzian, M. and Karami, M., Water on Mars – a literature review. Galaxies, 2020, 8, 40.
Literature cited 2: Baker, V. R., The Channels of Mars, University of Texas Press, Austin, USA, 1982, 1st edn, p. 198. Baker, V. R. and Milton, D. J., Erosion by catastrophic floods on Mars and Earth. Icarus, 1974, 23, 27–41.