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- M. Vasudevan
- A. Venkatesh
- C. Sivapragasam
- Shashi Kant Dargar
- S. C. Sethi
- S. D. Adyanthaya
- S. D. Deshpande
- R. G. Kelkar
- S. S. Katti
- G. Dileep Kumar
- M. Divya
- K. Krishna Shyla
- B. Venudevan
- P. Srimathi
- R. M. Vijayakumar
- R. M. Arunachalam
- P. Yasodha
- R. Thanigaivelan
- R. Arunachalam
- Abdu Rahoof
- Jishnu Sanjay
- Manish Kumar
Journals
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z All
Natarajan, N.
- A Simple Computer Code for Result Analysis of University Graduates
Abstract Views :68 |
Authors
Affiliations
1 Department of Civil Engineering, Dr. Mahalingam College of Engineering and Technology, Pollachi - 642003, Coimbatore, Tamil Nadu, IN
2 Department of Agricultural Engineering, Bannari Amman Institute of Technology, Sathyamangalam - 638401, Erode, Tamil Nadu, IN
1 Department of Civil Engineering, Dr. Mahalingam College of Engineering and Technology, Pollachi - 642003, Coimbatore, Tamil Nadu, IN
2 Department of Agricultural Engineering, Bannari Amman Institute of Technology, Sathyamangalam - 638401, Erode, Tamil Nadu, IN
Source
Journal of Engineering Education Transformations, Vol 38, No 1 (2024), Pagination: 60-70Abstract
In the realm of higher education, efficient and user-friendly tools for result analysis play a pivotal role in evaluating the academic performance of university graduates. A systematic processing of the examination results and their meaningful representation requires enormous labor when attempted manually. The students are generally unaware of the computational metrics of semester grade point average (SGPA) and cumulative grade point average (CGPA) though they like to get updated on their performance periodically. In this study, a straightforward computer code is developed in C++ language to enable the students to calculate their academic progress (in terms of SGPA and CGPA) using the input data of marks and credits of individual subjects. The code is designed with simplicity and practicality in mind, to enable the students, parents, teachers and administrators with a versatile tool for comprehensively assessing the academic outcomes. The validity of the software program is verified by comparing the computational performance for three Indian universities, namely, Anna University, N. Natarajan Department of Civil Engineering, Dr, Mahalingam College of Engineering and Technology, Pollachi - 642003, Coimbatore District, Tamil Nadu, India. itsrajan2002@yahoo.co.in University of Madras and Indraprastha University in estimating the SGPA and CGPA on a 10-point scale. The results suggest that the code provides an accurate and time-saving solution compared to manual calculation. The results demonstrate the code's ability to verify the grades by the students as well as their mentors to keep track of the performance. This user- friendly tool will be highly beneficial for streamlining the result analysis process, providing valuable insights for the academicians towards decision- making and strategic planning.Keywords
Computer code; Grade point average; Result analysis; University results
- Enhancing Engineering Education Through Pedagogical Change: “Application to Abstract
Abstract Views :66 |
Authors
Affiliations
1 Department. of Civil Engineering Kalasalingam Academy of Research and Education, Krishnankoil, Tamil Nadu, IN
2 Department. of Electronics and Communication Engineering Kalasalingam Academy of Research and Education, Krishnankoil, Tamil Nadu, IN
3 Department. of Civil Engineering, MCET, Pollachi, Tamilnadu, IN
1 Department. of Civil Engineering Kalasalingam Academy of Research and Education, Krishnankoil, Tamil Nadu, IN
2 Department. of Electronics and Communication Engineering Kalasalingam Academy of Research and Education, Krishnankoil, Tamil Nadu, IN
3 Department. of Civil Engineering, MCET, Pollachi, Tamilnadu, IN
Source
Journal of Engineering Education Transformations, Vol 37, No SP 2 (2024), Pagination: 826-831Abstract
Students' understanding and capacity to apply and integrate principles from different units in each course are not being sufficed by the traditional teaching method, especially for the core courses. This research proposes a method, namely, “Application to Abstract” in which students learn the course by solving an application that draws on principles from various topics. The implementation of the same has been demonstrated with the help of a core course on Fluid Mechanics where a single problem statement with all the necessary information is defined and students work on the different aspect of the problem with the progress of the course. Compared to traditional method, more percentage of students showed interest in derivation of abstract principles (60%), the ability to apply the concepts (40%), ability to correlate with the basic principles and execute the project (50%). Their ability to comprehend and integrate the abstract concepts through the practical application has also enhanced their participation in laboratory classes.Keywords
Fluid Mechanics; Engineering applications; Project based learning; Rubrics design- Surfactants from Renewable Resources-Part II: A Comparative Study of Sucrose Esters with Sodium Dodecylbenzenesulfonate
Abstract Views :201 |
PDF Views:0
Authors
Affiliations
1 National Chemical Laboratory, Pune 411008, IN
1 National Chemical Laboratory, Pune 411008, IN
Source
Journal of Surface Science and Technology, Vol 2, No 2 (1986), Pagination: 103-107Abstract
Our earlier work on developing general purpose surfactants from indigenously available renewable resources gave very encouraging results. A systematic study has now been made to extend this work further with a view to select the right raw materials and the most economically viable and technically feasible process. The choice lay between four alternate processes and over a dozen conventional as well as non-conventional oils. Different surfactant properties viz. surface tension, detergency, lime soap dispersion and emulsification of some of these products, technical as well as purified, have been determined to assess their suitability and afford a comparison with the conventional surfactants likes sodium dodecylbenzenesulfonate. Due to the non-toxic nature and complete biodegradability, these sucrose esters are highly recommended for use in pharmaceutical and food industries besides the normal usage.
- Green Synthesis and Characterization of Silver (Ag) Nanoparticles Using Neem Leaf Extract and its Antifungal Activity against Seed Borne Pathogens in Chilli
Abstract Views :241 |
PDF Views:0
Authors
Affiliations
1 Department of Seed Science and Technology, Tamil Nadu Agricultural University, Coimbatore (T.N.), IN
2 , Horticultural College and Research Institute for Women, Trichy (T.N.), IN
3 Department of Floriculture, Tamil Nadu Agricultural University, Coimbatore (T.N.), IN
1 Department of Seed Science and Technology, Tamil Nadu Agricultural University, Coimbatore (T.N.), IN
2 , Horticultural College and Research Institute for Women, Trichy (T.N.), IN
3 Department of Floriculture, Tamil Nadu Agricultural University, Coimbatore (T.N.), IN
Source
The Asian Journal of Horticulture, Vol 11, No 1 (2016), Pagination: 109-113Abstract
The silver nanoparticles (AgNPs) synthesized using hot water neen leaf extract (NLF) as reducing and stabilizing agent are reported and evaluated for antibacterial activity against chilli seed borne pathogens. The effect of extract concentration, contact time, pH and temperature on the reaction rate and the shape of the Ag nanoparticles were investigated. The data revealed that the rate of formation of the nanosilver size decreased significantly in the basic medium with different concentration (1 mM, 5 mM and 10 mM). Synthesized was characterized by UV-vis spectroscopy, X-ray diffraction, scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The nanoparticle synthesis using different concentration of silver nitrate and 5 mM was getting nano sized silver particles AgNPs. The silver nanoparticles were with an average size of 55 to 350 nm and mostly rod shape. The antifungal activity of synthesized AgNPs was observed in seed health test and different concentration of silver NPs (750 mg, 1000 mg and 1250 mg) were used for seed health test. The AgNPs at 750 mg concentration significantly inhibited the seed borne pothogens. Thus AgNPs showed broad spectrum antifungal activity at lower concentration and may be a good alternative therapeutic approach in future.Keywords
Green Synthesis, Silver Nanoparticles, Neem Leaf Extract, Antifungal Activity.References
- Bhattacharya, D. and Gupta, R.K. (2005). Nanotechnology and potential of microorganisms. Crit. Rev. Biotechnol., 25 : 199-204
- Brett, D.W. (2006). A discussion of silver as an antimicrobial agent: alleviating the confusion. Ostomy Wound Manage, 52: 34-41.
- Farooqui M.A, Chauhan, P.S., Krishnamoorthy, P. and Shaik, J. (2010). Digest. J. Nanomater Biostruct., 5: 43.
- ISTA (2010). International rules of seed testing. Seed Sci. & Technol., 11 : 20-35.
- Kalmesh, M. and Gurjar, R.B.S. (2001). Sclerotium rolfsii – A new threat to chilli in Rajasthan. Mycol. & Plant Pathol., 31(2) : 261
- Lee, P.C. and Meisel, D. (2005). Adsorption and surfaceenhanced raman of dyes on silver and gold sols. J. Physics Chem., 86 : 3391-3395
- Min, J.S. (2009). Effects of colloidal silver nanoparticles on sclerotium-forming phytopathogenic fungi. Plant Pathol., 25: 376–380.
- Mohanpuria, P., Rana, N.K. and Yadav, S.K. (2008). Biosynthesis of nanoparticles: technological concepts and future applications. J. Nanopart Res., 10 : 507-517
- Park, H.J., Kim, S.H., Kim, H.J. and Choi, S.H. (2006). A new composition of nano sized silica-silver for control of various plant diseases. Plant Pathol. J., 22 : 295–302.
- Toraya, H. (1986). Whole- powder- pattern fitting without reference to structural model: application to x-ray powder diffraction data. J. Appl. Cryst., 19: 440-447.
- Effect of Nanoparticles in Volatile Production during Seed Storage of Groundnut
Abstract Views :303 |
PDF Views:0
Authors
Affiliations
1 Department of Seed Science and Technology, Tamil Nadu Agricultural University, Coimbatore (T.N.), IN
1 Department of Seed Science and Technology, Tamil Nadu Agricultural University, Coimbatore (T.N.), IN
Source
International Journal of Agricultural Sciences, Vol 12, No 2 (2016), Pagination: 191-198Abstract
In the present study, seeds were evaluated for their influence at laboratory condition with dry dressing seed treatment, using inorganic and organic nanopowder that can maintain the seed quality in groundnut VRI 2. Fresh seeds of groundnut were treated with inorganic NPs of ZnO, Ag and TiO2 each @ 750, 1000 and 1250 mg kg-1 and organic nanopowder of CLP and FSP each @ 1, 2 and 3 g kg-1 and stored for 12 months under ambient condition and to assess their effects on physiological parameter of seeds and explore of volatile metabolites emitted from the aged seeds relate with seed quality. Seeds treated with inorganic NPs and organic nanopowders did not vary for seed germination analyzed immediately after treatment. However, after 12 months of storage, seeds treated with ZnO NPs @ 1000 mg kg-1 enhanced germination (77%) against the control (66%). In the case of organic nanopowders, seed treated with FSP@ 2g and CLP@ 3g kg-1 had higher germination (75 and 75%) compared to control (66%). Volatiles emitted from the seeds treated with NPs revealed that the number of compound emitted under aldehyde, ketone, acids, ether, ester and carboxyl groups was less (20) while the control had 36 compouds, expressing a negative correlation to the germination. The present investigation clearly demonstrated the effect of inorganic NPs of ZnO @ 1000 mg kg-1 and Ag @ 1250 mg kg-1 and the organic nanopowders of FSP @ 2g kg-1 of seeds in maintaining the quality.Keywords
Nanopowders, Groundnut, Seed Quality, Volatile Production.References
- Baskar, R., Rajeswari, V. and Sathish Kumar, T. (2007). In vitro antioxidant studies in leaves of Annona species. Indian J. Exp. Biol., 45 : 480-485.
- Bicanic, D., Persijn, S., Taylor, A., Cozijnsen, J., Veldhuyzen, B., Lenssen, G. and Wegn, H. (2003). Detection of ethanol and acetaldehyde released from cabbage seeds of different quality: Laser photoacoustic spectroscopy versus FTIR and headspace gas chromatography. Rev. Sci. Instrum.,74 : 690-693.
- Bukhari, S.B., Bhanger, M.I. and Memon, S. (2008). Antioxidative activity of extracts from fenugreek seeds (Trigonella foenum-graecum). Pak. J. Anal. Environ. Chem., 9(2) : 78-83.
- Dewey, J.R. and Lu, K.H. (1959). A correlation and path coefficient analysis of components ofcrested wheat seed production. Agron. J., 51 : 515-518.
- Hailstones, M.D. and Smith, M.T. (1989). Thermally-derived volatile aldehydes in relation to seed viability in soybean seeds. Seed Sci. & Technol., 17 : 649-658.
- Harman, G.E., Nedrow, B.L., Clark, B.E. and Mattick, L.R. (1982). Association of volatile aldehyde production during germination with poor soybean and pea -seed quality. Crop Sci., 22 : 712-716.
- International Seed Testing Association (2010). International rules for seed testing: edition ISTA, Bassersdorf, SWITZERLAND.
- Kapri, B., Sengupta, A.K., De, B.K., Mandal, A.K. and Basu, R.N. (2003). Pre-storage seed invigouration treatments for improved germinability and field performance of okra (Hibiscus esculentus). Indian J. Agric. Sci.,73(5) : 276-279.
- Lee, P.C., Taylor, A.G., Zhang, M. and Esashi, Y. (2000a). Evolution of volatiles during seed ageing: exogenous gas application. J. New Seeds, 2 : 77-91.
- Lee, P.C., Taylor, A.G., Zhang, M. and Esashi, Y. (2000b). Volatile compounds and accumulation of acetaldehyde-protein adducts in relation to seed quality and storage conditions. J. New Seeds, 2 : 59-76.
- Lu, C.M., Zhang, C.Y., Wen, J.Q., Wu, G.R. and Tao, T.X. (2002). Research of the effect of nanometer materials on germination and growth enhancement of Glycine max and its mechanism. Soybean Sci., 21 : 168-172.
- Mandal, A.K., De, B.K., Saha, R. and Basu, R.N. (2000). Seed invigoration treatments for improved storability, field emergence and productivity of soybean [Glycine max (L.) Merrill]. Seed Sci. & Technol., 28 : 349-355.
- Mira, S., Gonzalez-Benito, M.E., Hill, M.L. and Walters, C. (2010). Characterization of volatile production during storage of lettuce (Lactuca sativa) seed. J. Exp. Bot., 61(14) : 3915-3924.
- Murthy, U.M.N., Kumar, P.P. and Sun, W.Q. (2003). Mechanisms of seed ageing under different storage conditions for Vigna radiata (L.) Wilczek: Lipid peroxidation, sugar hydrolysis, Maillard reactions and their relationship to glass state transition. J. Exp. Bot., 54 : 1057-1067.
- Natarajan, N. and Sivasubramanian, K. (2008). Nanotechnology application in seed management. Nanotechnol. Appl. Agric., 43-52.
- Pandey, A. Sharda, C., Sanjay, S. and Yadav, R.S. (2010). Application of ZnO nanoparticles in influencing the growth rate of Cicer arietinum. J. Exp. Nanosci., 5(6) : 488-497.
- Panse, V.G. and Sukhatme, P.V. (1985). Statistical methods for agricultural workers. ICAR Publication, New Delhi, 359 pp.
- Prasad, T.N.V.K.V., Sudhakar, P. and Srenivasulu, Y. (2012). Effect of nanoscale zinc oxide particles on the germination, growth and yield of peanut. J Plant Nutri., 39 : 905-927.
- Renugadevi, J., Sumathi, P., Nirmalakumari A., Ramamoorthy, K. and Gnanamurthy, P. (2001). Combination of organic and inorganic ingredients of seed hardening of blackgram. National symposium of pulses and oil seeds for sustainable agriculture. Tamil Nadu Agricultural University, Coimbatore, 29-31 July.
- Renugadevi, J. and Vijayageetha, V. (2007). Organic seed fortification in cluster bean [Cyamopsis tetragonoloba (L.) Taub]. Acta Horti., 335-337.
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- Senthilkumar, S. (2011). Customizing nanoparticles for the maintanence of seed vigour and viability in blackgram (Vigna mungo) cv. VBN 4. M.Sc. Thesis, Tamil Nadu Agricultural University, Coimbatore, T.N. (INDIA).
- Sridhar, C. (2012). Effect of nanoparticles for the maintenance of tomato seed vigour and viability. M.Sc. Thesis, Tamil Nadu Agricultural University, Coimbatore, T.N. (INDIA).
- Tammela, P., Nygren, M., Laakso, I., Hopia, A., Vuorela, H. and Hiltunen, R. (2003). Volatile compound analysis of ageing Pinus sylvestris L. (Scots pine) seeds. Flavour & Frag. J., 18 : 290-295.
- Taylor, A.G., Lee, P.C. and Zhang, M. (1999). Volatile compounds as indicators of seed quality and their influence on seed ageing. Seed Technol., 21 : 57-65.
- Toppo, F.A., Akhand, R. and Pathak, A.K. (2009). Pharmacological actions and potential uses of Trigonellafoenum graecum: A review. Asian J. Pharm. Clin. Res., 2(4) : 29-38.
- Trawatha, S.E., Tekrony, D.M. and Hildebrand, D.F. (1995). Relationship of soybean seed quality to fatty-acid and C-6aldehyde levels during storage. Crop Sci., 35 : 1415-1422.
- Tyagi, C.S. (1992). Evaluation of storability of soybean seed. Seeds & Farms, 18 : 8-11.
- Wilson, D.O. and McDonald, M.B. (1986). A convenient volatile aldehyde assay for measuring seed vigour. Seed Sci. & Technol., 14 : 259-268.
- Zhang, M., Lui, Y., Torii, I., Sasaki, H. and Esashi, F. (1993). Evolution of volatile compounds by seeds during storage periods. Seed Sci. Technol., 21 : 359-373.
- Zhang, M. and Roos, E.E. (1997). Using seed volatiles as a possible indicator for seed deterioration during storage. Hort. Sci., 32 : 526.
- Zhang, M., Yajima, H., Umezawa, Y., Nakagawa, Y. and Esashi, Y. (1995). GC-MS identification of volatile compounds evolved by dry seeds in relation to storage conditions. Seed Sci. Technol., 23 : 59-68.
- Renugadevi, J. and Vijayageetha, V. (2009). Organic seed fortification in cluster bean [Cyamopsis tetragonoloba (L.) TAUB). Acta Horti., 752: In: International Conference on Indigenous Vegetables and Legumes. Prospectus for Fighting Poverty, Hunger and Malnutrition. Retrived from www.actahort.org.
- Influence of Seed Fortification Treatment with Leaf Extract on Seedling Production in Bael Tree (Aegle marmelos L.)
Abstract Views :338 |
PDF Views:0
Authors
Affiliations
1 Department of Seed Science and Technology, Tamil Nadu Agricultural University, Coimbatore (T.N.), IN
2 Department of Medicinal and Aromatic Crops, Tamil Nadu Agricultural University, Coimbatore (T.N.), IN
1 Department of Seed Science and Technology, Tamil Nadu Agricultural University, Coimbatore (T.N.), IN
2 Department of Medicinal and Aromatic Crops, Tamil Nadu Agricultural University, Coimbatore (T.N.), IN
Source
International Journal of Agricultural Sciences, Vol 12, No 2 (2016), Pagination: 210-214Abstract
In cultivation of medicinal trees, seed germination is a very important problem. Various seed enhancements are being adopted nowadays to improve seedling emergence. Among these seed enhancement, seed fortification is an efficient method for increasing of seed vigour and improvement of germination and seedling growth. The laboratory experiment was conducted at the Department of Seed Science and Technology, Tamil Nadu Agricultural University, Coimbatore. The present study was conducted for evaluation of ecofriendly seed treatment with three botanical fresh leaf extracts in two concentrations with the soaking durations of 3 and 6h in Bael (Aegle marmelos). The results revealed that soaking of seeds in one per cent moringa (Moringa oleifera) leaf extract for 6h adopting 1:1 seed to solution ratio enhanced the seedling quality characters of bael in germination room and it was followed by 0.5 per cent tamarind (Tamarindus indica) leaf extract. On evaluation of these treatments at polypot nursery upto three months also exposed the efficacy of these treatments in production elite seedlings.Keywords
Seed Germination, Seed Vigour, Ecofriendly, Moringa oleifera.References
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- Anonymous (1985). International rules for seed testing. Seed Sci. & Technol., 13(2) : 307-355.
- Jagathambal, R. (1996). Pre-sowing seed treatment to augment productivity sorghum cv. Co-26 under rainfed agriculture. Ph.D., Thesis, Tamil Nadu Agricultural University, Coimbatore, T.N. (INDIA).
- Krishnasamy, V., Ponnuswamy, A.S., Balamurugan, P., Srimathi, P., Natarajan, N. and Raveendran, T.S. (2005). Compendium on seed science and Technology. TNAU offset press, Directorate of Publication, Coimbatore, T.N. (INDIA).
- Maguire, J.D. (1962). Speed of germination-aid in selection and evaluation for seedling emergence and vigour. Crop Sci., 2 : 176-177.
- Natarajan, K. (2003). Seed production, processing and storage techniques in petunia (Petunia grandiflora) cv. MIX. Ph. D. Thesis, Tamil Nadu Agricultural University, Coimbatore, T.N. (INDIA).
- Nayak, G. and Sen, S.K. (1999). Effect of growth regulators, acid and mechanical scarification on germination on bael (Aegle marmelos). Environ. & Ecol., 17(18) : 768-769.
- Panse, V.G. and Sukhatme, P.V. (1967). Statistical methods for agricultural workers. ICAR Publications, NEW DELHI, INDIA.
- Sathish, S., Mohana, D.C., Ranhavendra, M.P. and Raveesha, K.A. (2007). Antifungal activity of some plant extracts against important seed borne pathogens of Aspergillus sp. J. Agril. Technol., 3(1) : 109-119.
- Suma, N. (2003). Studies on seed quality enhancement techniques in sesamu (Sesamum indicum) cv. Co1. M.Sc.(Ag) Thesis, Tamil Nadu Agricultural University, Coimbatore, T.N. (INDIA).
- Sumathi, S. and Srimathi, P. (2009). Bioforticication of paddy cv.IR 36 seeds with some leaf extracts. Green Farming, 2(6) : 378-381.
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- Experimental Investigation and Multi Objective Optimization of Process Parameters in Micro-EDM
Abstract Views :191 |
PDF Views:0
Authors
Affiliations
1 Dept of Mechanical Engg, Muthayammal Engg College, Rasipuram, IN
2 Dept of Mechanical Engg, Sona College of Technology, Salem, IN
1 Dept of Mechanical Engg, Muthayammal Engg College, Rasipuram, IN
2 Dept of Mechanical Engg, Sona College of Technology, Salem, IN
Source
Manufacturing Technology Today, Vol 10, No 8 (2011), Pagination: 18-24Abstract
This study investigates the optimization of process parameters of micro electric discharge machining (micro-EDM) for stainless steel grade 304 (SS 304) on the machining characteristics using the grey relational analysis (GRA) method. Twenty seven experimental runs based on the orthogonal array (OA) of Taguchi method have been carried out. The multi-objective optimization of the process parameters viz. material removal rate (MRR), tool wear rate (TWR), diametral overcut (DOC) and taper (T) has been performed. The current is identified to be the most influential factor of the MRR, TWR and the T, and the pulse-off time has an impact on DOC. Additionally, the analysis of variance (ANOVA) is also carried out to identify the most significant factor in which the current is observed to be the most significant factor. In-depth studies have also been made to examine the influence of various process parameters through SEM micrographs.Keywords
Grey Relational Analysis, Multiple Performance, Optimization, Micro-EDM, ANOVA, White Layer, Taguchi, Micro-Hole.- Ovicidal and Ovipositional Deterrent Botanicals against Leucinodes orbonalis Guenee (Pyraustidae : Lepidoptera)
Abstract Views :227 |
PDF Views:0
Authors
P. Yasodha
1,
N. Natarajan
2
Affiliations
1 Department of Plant Molecular Biology and Biotechnology, Centre for Plant Protection Studies, T.N.A.U., Coimbatore (T.N.), IN
2 Department of Agril. Entomology, Tamil Nadu Agricultural University, Coimbatore (T.N.), IN
1 Department of Plant Molecular Biology and Biotechnology, Centre for Plant Protection Studies, T.N.A.U., Coimbatore (T.N.), IN
2 Department of Agril. Entomology, Tamil Nadu Agricultural University, Coimbatore (T.N.), IN
Source
Asian Journal of Bio Science, Vol 2, No 1 (2007), Pagination: 25-30Abstract
Laboratory experiments were carried out inorder to test the oviposition deterrency and ovicidal action of certain wild Solanum spp., kernels of Azadirachta indica and dried powder of Acorus calamus against Leucinodes orbonalis females and its eggs. Maximum oviposition deterrency is expressed in the form of minimum oviposition index (OI). At highest concentration of 5 per cent as aqueous extract, NSKE + A. calamus was found to have minimum oviposition index of 0.22, indicating the strong oviposition deterrent effect. Considering wild Solanum spp, S. mauritianum exhibited strong deterrency only at 5 % concentration. Methanol extracts of NSKE + A. calamus as observed in the aqueous extract showed maximum oviposition deterrency with the least OI (0.14). Among wild Solanum spp., the strong deterrancy was exhibited by 0.2 per cent methanol extract of S. viarum and S. lasiocarpum. Hence, organic solvents of various tested botanicals exhibited more deterrency effect than the aqueous extract. The maximum ovicidal action (62.60%) was achieved with NSKE +A. calamus combination while the minimum was by S. trilobatum (25.61%).Keywords
Botanicals, Oviposition Deterrancy, Ovicidal Nature, L. orbonalis.- Study on Effect of Evaporative Cooled Turning Tool with Water Soaked Banana Fiber for Machining Ti–6Al-4V Alloy
Abstract Views :275 |
PDF Views:1
Authors
R. Thanigaivelan
1,
R. Arunachalam
2,
N. Natarajan
3,
Abdu Rahoof
1,
Jishnu Sanjay
1,
Manish Kumar
1
Affiliations
1 Mahendra Engineering College (Autonomous), Mallasamudrum, Namakkal Dist, IN
2 Dept. of Mech and Industrial Engg., Sultan Qaboos University, Sultanate of Oman, OM
3 Department of Mechanical Engineering, Muthayammal Engineering College (Autonomous), Rasipuram, Namakkal Dist, IN
1 Mahendra Engineering College (Autonomous), Mallasamudrum, Namakkal Dist, IN
2 Dept. of Mech and Industrial Engg., Sultan Qaboos University, Sultanate of Oman, OM
3 Department of Mechanical Engineering, Muthayammal Engineering College (Autonomous), Rasipuram, Namakkal Dist, IN
Source
Manufacturing Technology Today, Vol 17, No 12 (2018), Pagination: 21-25Abstract
The application of Ti–6Al-4V alloy in the fields of biomedical and aerospace industries attracts the manufacturing engineers to understand the behavior of alloy during machining. Ti–6Al-4V alloy posses high specific strength and corrosion resistance and besides its advantages they poses challenges in machining due its low thermal conductivity nature. The heat generated during machining is dissipated through cooling medium and cutting tool. Considering the situation detailed experiments are planned for turning of Ti–6Al-4V alloy with varies cutting speed, feed rate and depth of cut. The cutting tool is cooled with the process of evaporative cooling technique by using the water soaked banana fiber pad along with fan and flooded coolant. This method dissipates 39.51% of heat generated during cutting operation at parameter combination of 1200 rpm cutting speed, 1.5mm/rev feed rate and 0.6 mm depth of cut. The lowest average surface roughness (Ra) is recorded at parametric combination of 1200 rpm cutting speed, 0.25mm/rev feed rate and 0.6 mm depth of cut for banana fiber cooled tool. The use of banana fiber resulted in lesser Ra of 0.42μm. Further studies with multi-pad evaporative cooling facilitate for increased tool heat dissipation.Keywords
Banana Fiber, Evaporative Cooling, Ti-6Al-4V Alloy, Surface Roughness, Cutting Temperature.References
- Suhas S Joshi; Machinability of titanium alloys under various machining environments, International conference and exhibition on Advances in Light weighting Technology Design, Materials, Manufacturing Applications, 20- 22 November 2012, Pune, INDIA
- Sartori, S; Ghiotti, A ; Bruschi, S: Solid Lubricantassisted Minimum Quantity lubrication and Cooling strategies to improve Ti-6Al-4V machinability in finishing turning, ‘Tribology International’, vol. 118, 2018, 287-294.
- Munish Kumar Gupta; Sood, PK; Vishal S Sharma: Optimization of machining parameters and cutting fluids during nanofluid based minimum quantity lubrication turning of titanium alloy by using evolutionary techniques, Journal of Cleaner Production, vol. 135, no.1, 2016, 1276-1288.
- Hamed Hassanpour; Mohammad H.Sadeghi; Amir Rasti; Shaghayegh Shajari: Investigation of surface roughness, microhardness and white layer thickness in hard milling of AISI 4340 using minimum quantity lubrication, ‘Journal of Cleaner Production’, vol. 120, 2016, 124-134.
- Bagherzadeh, A; Budak, E: Investigation of machinability in turning of difficult-to-cut materials using a new cryogenic cooling approach, ‘Tribology International’, vol. 119, 2018, 510-520.
- Salah Gariani; Islam Shyha; Fawad Inam; Dehong Huo: Experimental analysis of system parameters for minimum cutting fluid consumption when machining Ti-6Al-4V using a novel supply system, ‘International Journal of Advanced Manufacturing Technology’, vol. 95, 2018, 2795–2809.
- Salman Pervaiz ; Ibrahim Deiab; Essam Wahba; Amir Rashid; Mihai Nicolescu: A numerical and experimental study to investigate convective heat transfer and associated cutting temperature distribution in single point turning ‘International Journal of Advanced Manufacturing Technology’ vol. 94, no.1-4, 2018, 897-910.
- Salman Pervaiz; Amir Rashid; Ibrahim Deiab; Cornel Mihai Nicolescu: An experimental investigation on effect of minimum quantity cooling lubrication (MQCL) in machining titanium alloy (Ti6Al4V), ‘International Journal of Advanced Manufacturing Technology’, vol. 87, 2016, 1371-1386.
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