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- Records of the Zoological Survey of India - A Journal of Indian Zoology
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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
Srinivasan, G.
- Govind Swarup:Radio Astronomer, Innovator Par Excellence and a Wonderfully Inspiring Leader
Abstract Views :200 |
PDF Views:95
Authors
Affiliations
1 Raman Research Institute, IN
1 Raman Research Institute, IN
Source
Current Science, Vol 109, No 3 (2015), Pagination: 618-630Abstract
No Abstract.Full Text
- Toxicity of Certain Insecticides to Predatory Green Lacewing, Chrysoperla carnea Stephens (Nenroptera: Chrysopidae)
Abstract Views :257 |
PDF Views:117
Authors
Affiliations
1 Central Institute for Cotton Research - Regional station, Coimbatore 641 003, Tamil Nadu, IN
2 Department of Agricultural Entomology Tamil Nadu Agricultural University Coimbatore 641 003, Tamil Nadu, IN
1 Central Institute for Cotton Research - Regional station, Coimbatore 641 003, Tamil Nadu, IN
2 Department of Agricultural Entomology Tamil Nadu Agricultural University Coimbatore 641 003, Tamil Nadu, IN
Source
Journal of Biological Control, Vol 14, No 1 (2000), Pagination: 5-7Abstract
Insecticides showed distinct deleterious effects on different life stages of predatory green lacewing, Chrysoperla carnea Stephens. Abamectin caused the maximum egg mortality of 25.2 per cent as against 0.3 per cent in control. Carbaryl affected the grubs more and the mortality was 83.3 per cent. Endosulfan and ahamectin had no adverse influence on the grubs and the grub mortality was only 3.3 and 6.7 per cent. respectively. Adult emergence was highly affected by carharyl, which recorded only 10.00 per cent as against 93.33 per cent adult emergence in control. The time taken for cent per cent mortality of adults in control was 23.33 days, but in the case of quinalphos (0.04%), it was 0.66 days and the fecundity was 0.5 eggs as against 160.4 eggs in control.Keywords
Chrysoperla carnea, Insecticides, Toxicity.Full Text
- Automatic River Pollutant Monitoring & Flood Detection Using Sensor Web
Abstract Views :170 |
PDF Views:3
Authors
Affiliations
1 Department of CSE, Kamaraj College of Engineering & Technology, IN
1 Department of CSE, Kamaraj College of Engineering & Technology, IN
Source
Networking and Communication Engineering, Vol 3, No 6 (2011), Pagination: 418-423Abstract
The study and objective of this proposed paper is to develop River pollution & flood monitoring system using Sensor Web. Environmental pollution is the major threat to man kind. Another hazard is frequent flooding in India which causes monetary losses as well as life losses every year. Flooding is a growing problem in India and affects a large number of people. Water resources are scarce now days with climatic changes. The Rivers are the main source of water for Drinking & agriculture. Water Pollution in river is serious proposition & to find area where pollution occurs not so easily identified .This system focuses on monitoring on real time basis the River pollutant & water level remotely using sensor node to identify the pollution occurrence area. Data is collected from the sensors using data acquisition device and channel to the control panels which then relay information to the central system using Sensor Web. This Data are processed in the system give real time Data which cab be monitored anywhere using internet & Using Decision support SMS alerts invoked at any node in case abnormal activity like sudden increase in level above limit, likely would of Flood and also for raised pollution level. Flood monitoring will ensures that appropriate warnings earlier time interval to take action to minimize losses The real time information to all stakeholder Through Sensor Web & SMS to stake holder has distinct advantage for pollution monitoring & flood detection in protecting the environment & Risk aversion in Flood situation.Keywords
Sensor Web, Internet, Pollution Monitoring, Flood Detection, GPRS Network, Mobile Alert, SMS.
- Proportional Integral Derivative Control of Hydro-Gas Suspension Unit for Tracked Vehicles
Abstract Views :177 |
PDF Views:2
Authors
Affiliations
1 Combat Vehicles Research and Development Establishment, Defence Research and Development Organization, Avadi, Chennai, IN
2 Dept. of Mechanical Engineering, PSG College of Technology, Coimbatore, IN
3 VELS University, Pallavaram, Chennai-600117, Tamilnadu, IN
1 Combat Vehicles Research and Development Establishment, Defence Research and Development Organization, Avadi, Chennai, IN
2 Dept. of Mechanical Engineering, PSG College of Technology, Coimbatore, IN
3 VELS University, Pallavaram, Chennai-600117, Tamilnadu, IN
Source
International Journal of Vehicle Structures and Systems, Vol 4, No 1 (2012), Pagination: 28-33Abstract
High-speed tracked vehicles traversing off-road terrains are subjected to ride vibrations of low frequency and large amplitude. This causes bodily discomfort to the operator and limits the mobility and performance of the vehicle. The damping of the terrain vibrations is achieved by a Hydro-Gas Suspension Unit (HGSU) with inbuilt damper and hydraulic actuator piston mechanism. The present studies have been carried out to develop a quarter-car dynamic model of passive and active suspensions for improving the HGSU characteristics using proportional integral derivative controller. Performance of the active suspension system has been compared with the passive suspension system through simulations using MATLAB/SIMULINK software.Keywords
Mathematical Model, Hydro Gas Suspension, Tracked Vehicles, Simulation, Proportional Integral Derivative Controller, Simulink.- Choice of Welding Consumable and Procedure Qualification for Welding of 304HCu Austenitic Stainless Steel Boiler Tubes for Indian Advanced Ultra Super Critical Power Plant
Abstract Views :378 |
PDF Views:11
Authors
Affiliations
1 Indira Gandhi Centre for Atomic Research, Kalpakkam 603102, IN
1 Indira Gandhi Centre for Atomic Research, Kalpakkam 603102, IN
Source
Indian Welding Journal, Vol 48, No 3 (2015), Pagination: 30-30Abstract
India has embarked on a mission program for setting-up a coal-fired 800 MWe Advanced Ultra Super Critical (AUSC) power plant with steam parameters of 710°C/ 720°C temperature 310 kg/cm2 pressure. For the boiler tubes in the final stages of the superheater and reheater, the material chosen is 304HCu stainless steel (SS), a 18Cr-9Ni-3Cu-Nb-N austenitic SS (UNS S30432) as ASME code case 2328 and VdTUV 510 specifications. The 304HCu SS is a variant of the conventional 18Cr-8Ni austenitic SS, containing ~3% copper, increased carbon and controlled amounts of niobium and nitrogen, for enhanced elevated temperature strength, especially creep. India-specific version of 304HCu SS boiler tubes, of 52 mm diameter with 9.5 mm wall thickness, produced in collaboration with Indian manufacturers has been used for welding procedure qualification trials.
The objective of the present study is to choose the appropriate gas tungsten arc (GTA) welding consumable, from among ER304HCu (matching chemistry) and ERNiCrMo-3 and ERNiCrCoMo-1 (both nickel-base) filler wires, for welding of 304HCu SS. This involved qualifying the welding consumables, development of welding procedures for 304HCu SS tubes, and producing weld coupons for evaluation of mechanical properties and microstructural characterisation. Mock-up tube weld joints, with single-V groove joint geometry, were prepared using all the three filler wires to optimize the welding parameters. Weld defects like ischolar_main crack; hot crack and crater cracks were observed during the initial trials in weld joints made with the nickel-base filler metals due to the poor fluidity of the weld metal. These problems were overcome by suitably altering the weld joint design and optimisation of heat input. Subsequently, the weld joints were qualified, in the as-welded condition, by liquid penetrant and radiography examinations followed by tensile tests and bend tests as per ASME section IX requirements for preparing the Welding Procedure Qualification records. Based on detailed evaluation of mechanical properties, including creep, ER304HCu filler metal was chosen for welding of ER304HCuSS.
- Gesture Recognition for Physically Challenged
Abstract Views :169 |
PDF Views:0
Authors
Affiliations
1 Department of CSE, Mepco Schlenk Engineering College, Sivakasi - 626005, Tamil Nadu, IN
2 Department of CSE, Kamaraj College of Engineering and Technology, Virudhunagar - 626001, Tamil Nadu
1 Department of CSE, Mepco Schlenk Engineering College, Sivakasi - 626005, Tamil Nadu, IN
2 Department of CSE, Kamaraj College of Engineering and Technology, Virudhunagar - 626001, Tamil Nadu
Source
Indian Journal of Science and Technology, Vol 9, No 16 (2016), Pagination:Abstract
Objectives: The sign language is very important for hearing impiared people. Finding an educated translator for the sign language every time and everywhere is difficult task. The human-computer interaction system is helpful for dumb people to overcome the difficulty, besides it and can be installed anywhere. This paper proposes the method or algorithm for an application which would help in recognizing the different signs and convert those sign gestures into voice. Methods: Different sets of hand gestures were captured using web camera and then stored in a directory. The correct signs by the user is identified by using feature extraction techniques and neural network algorithm. Findings: The sign languages for different numbers in words are trained and tested. The test image is aligned correctly with training images which is based on correlation and convert the matched image into text and then text into voice. Applications: By using this system, hearing impaired people can easily interact without depending on translators.Keywords
Deaf and Mute, Human-Computer Interaction, Hand Gestures, Neural Network, Sign LanguageFull Text
- Antioxidant Assays in Pharmacological Research
Abstract Views :211 |
PDF Views:0
Authors
Affiliations
1 Department of Applied Biosciences, BioLim Centre for Life Science, Chennai, Tamil Nadu, IN
1 Department of Applied Biosciences, BioLim Centre for Life Science, Chennai, Tamil Nadu, IN
Source
Asian Journal of Pharmacy and Technology, Vol 1, No 4 (2011), Pagination: 99-103Abstract
Antioxidants research has become active to a greater extent in many fields. The publications on antioxidants' potential, their availability from vitamins, flavonoids, polyphenols etc has increased too many folds since past decade. Several reviews have also been published on validated and specific assays. This review summarises the versatility of antioxidants against the free radicals, their dual mechanism of action and the chemical principles of many antioxidant assays. The antioxidants assay is a complex topic due to the unavailabilty of a standard assay. This review intends to be comprehensive to cover almost all the reported assays which have few influence and applications. Choosing an adequate assay is critical to investigate the antioxidant activity of foods and biological samples. Two general types such as; lipid peroxidation associated assays and electron or radical scavenging assays are widely used for different antioxidant studies have been discussed here. The former includes, β-carotene bleaching assay, anti-lipid peroxidation assay involving TCA-TBA solution and the latter includes ABTS (2, 2'-azino-bis3-ethylbenzthiazoline-6-sulfonic) radical cation decolorisation assay, DPPH (1, 1-Diphenyl-2-picryl-hydrazyl) radical scavenging assay, ferric reducing antioxidant power assay, superoxide anion scavenging activity assay, ferrous ion-chelating assay etc. The chemistry behind all the above mentioned assays has been reviewed here emphasising the need of discovery of a convenient method for the quick quantitation of antioxidants.Keywords
Free Radicals, ROS, Antioxidants, Assays, Lipid Peroxidation, Radical Scavenging.- Performance of Groundnut Oil Mills in Thiruvannamalai District, Tamil Nadu-A Management Appraisal
Abstract Views :163 |
PDF Views:0
Authors
Affiliations
1 Department of Agricultural Economics, Annamalai University, Annamalai Nagar (T.N.), IN
1 Department of Agricultural Economics, Annamalai University, Annamalai Nagar (T.N.), IN
Source
Agriculture Update, Vol 6, No 1 (2011), Pagination: 98-100Abstract
The overall objective of this paper was to assess the performance of groundnut oil mills in Thiruvannamalai District of Tamil Nadu through inventory analysis. The average capacity of large:medium and small oil mills were 14.5, 7.2 and 0.9 tonnes per day and their actual capacity utilization were 35.1,48.6 and 65.3 per cent, respectively. In all, the size of units, the quantity of total finished products produced was higher than the break even quantity to be produced. However, actual value of total finished products produced was less than the break even value of finished products to be produced in large sized units (margin of safety -4.50 per cent). Similarly, actual quantity of finished products sold and their values were lower than the break even quantity and value to be sold in the large sized units (margin of safety -7.18 per cent) where as in medium and small scale units actual quantity of finished products sold and their value were greater than the break even quantity and value to be sold. Margin of safety for medium and small scale units were 37.86 and 58.46 per cent, respectively. Large scale units had negative margin of safety on one hand and huge capacity was unutilized on the other hand, therefore there is a need to improve the efficiency in its production and sales.Keywords
Break Even Quantity, Break Even Value, Margin of Safety, Capacity Utilization, Expeller, Ghani.- New Distributional Records of Parischnogaster mellyi (De Saussure, 1852) (Hymenoptera:Vespidae:Stenogasrtinae) from Various States of India
Abstract Views :223 |
PDF Views:118
Authors
Affiliations
1 Zoological Survey of India, M- Block, New Alipore, Kolkata-700053, West Bengal, IN
1 Zoological Survey of India, M- Block, New Alipore, Kolkata-700053, West Bengal, IN
Source
Records of the Zoological Survey of India - A Journal of Indian Zoology, Vol 115, No 2 (2015), Pagination: 203-206Abstract
The hover wasp of the genus Parischnogaster Von Schulthess, 1914 (Hymenoptera:Vespidae:Stenogastrinae) consists of 10 valid species and all of them are described from the Oriental Region. Out of these, the species P. mellyi (de Saussure, 1852) is reported from India (Arunachal Pradesh, Assam, Meghalaya and Sikkim). This species is also recorded from Myanmar, Vietnam, Thailand, Malaysia, Singapore, Indonesia and Philippines (Das & Gupta, 1989; Carpenter & Kojima, 1996; Srinivasan & Girish Kumar, 2009). In this paper, we recorded this species for the first time from Mizoram, Chhattisgarh, Andhra Pradesh and Andaman & Nicobar Islands. The present records extend its known geographical range in India significantly from north eastern (Arunachal Pradesh, Assam, Meghalaya) and eastern India (Sikkim) to central India (Chhattisgarh), southern India (Andhra Pradesh) and Andaman & Nicobar Islands.Full Text
- Mantis (Insecta:Mantodea) Fauna of Chhattisgarh, India
Abstract Views :236 |
PDF Views:128
Authors
Affiliations
1 Zoological Survey of India, M Block, New Alipore, Kolkata-700053, IN
2 65A/6, Swinhoe Lane, Kolkata-700042, IN
1 Zoological Survey of India, M Block, New Alipore, Kolkata-700053, IN
2 65A/6, Swinhoe Lane, Kolkata-700042, IN
Source
Records of the Zoological Survey of India - A Journal of Indian Zoology, Vol 115, No 4 (2015), Pagination: 365-383Abstract
Mantids belong to the Order Mantodea under Superorder Blattopteroidea. They are commonly found in humid climate of tropical region although few species occur in dry habitats of semi desert areas. The activity period of mantis depends on the habitat. In arid and semi-arid regions, mantids are generally active after sunset to avoid desiccation. They are well known as predators of many invertebrates and even smaller vertebrates. Territoriality, inter and intra-specific cannibalism are known in mantids and these may be some of the reasons for the decline of their population in nature. They constitute a natural biological control agent by feeding on other insects and thus play an important role in natural control of beneficial species, pest insects and others species in nature.Full Text
- Elastic Properties of Ba2+ and Mn2+ Metal Ion Doped Lithium Borate Glasses Using Pulse-Echo Technique
Abstract Views :187 |
PDF Views:0
Authors
R. Palani
1,
G. Srinivasan
2
Affiliations
1 Department of Physics, D.D.E, Annamalai University, Annamalainagar-608002, Tamil Nadu, IN
2 Department of Physics, Annamalai University, Annamalainagar-608002, Tamil Nadu, IN
1 Department of Physics, D.D.E, Annamalai University, Annamalainagar-608002, Tamil Nadu, IN
2 Department of Physics, Annamalai University, Annamalainagar-608002, Tamil Nadu, IN
Source
Journal of Pure and Applied Ultrasonics, Vol 35, No 2-3 (2013), Pagination: 95-100Abstract
The ultrasonic wave velocity (longitudinal and shear), density and attenuation for the ternary glass systems of Li2O-B2O3-BaO and Li2O-B2O3-MnO have been measured at the room temperature by using pulse-echo technique at 5 MHz. The samples were prepared by melt-quenching method. The amorphous nature of the samples was ascertained using X-ray diffractometry (XRD). The measured experimental values are utilized to evaluate elastic moduli, Poisson's ratio, acoustic impedance, internal friction, microhardness, Debye temperature and thermal expansion coefficient. Trends of the co-ordination number, cross-link density, mechanical and thermal stability for the systems are discussed in terms of the structural changes taking place due to variations in composition.Keywords
Ultrasonic Velocity, Elastic Moduli, XRD, Poisson's Ratio, Debye Temperature.Full Text
- A Study on Vespid Wasps (Insecta: Hymenoptera: Vespidae) of Itanagar Wildlife Sanctuary, Arunachal Pradesh
Abstract Views :235 |
PDF Views:238
Authors
Affiliations
1 Zoological Survey of India, M- Block, New Alipore, Kolkata-700 053, West Bengal, IN
1 Zoological Survey of India, M- Block, New Alipore, Kolkata-700 053, West Bengal, IN
Source
Records of the Zoological Survey of India - A Journal of Indian Zoology, Vol 113, No 1 (2013), Pagination: 115-127Abstract
Itanagar Wildlife Sanctuary is situated in Papumpare district of Arunachal Pradesh which is spread over an area of about 140.30 sq. km with rare and varied species of fauna and flora. This sanctuary is surrounded by Poma River in the East, Pachin River in the South, Neorch River in the North West. It is situated at 27°5' 35.72'' N 93°37' 30.72'' E latitude and longitude coordinates having an altitude of 250-2000 msl receiving an average annual rainfall of ca 400 mm. The climate is moist and humid with the varying temperature range of 10-30° C.Full Text
- Additional Records of Mantodea and Phasmida from Andaman and Nicobar Islands
Abstract Views :220 |
PDF Views:116
Authors
Affiliations
1 Zoological Survey of India, Marine Biology Regional Centre, 130, Santhome High Road, Mylapore, Chennai – 600004, Tamil Nadu, IN
2 Vidyasagar Evening College, Kolkata – 700006, West Bengal, IN
3 65A/6, Swinhoe Lane, Kolkata, West Bengal, IN
1 Zoological Survey of India, Marine Biology Regional Centre, 130, Santhome High Road, Mylapore, Chennai – 600004, Tamil Nadu, IN
2 Vidyasagar Evening College, Kolkata – 700006, West Bengal, IN
3 65A/6, Swinhoe Lane, Kolkata, West Bengal, IN
Source
Records of the Zoological Survey of India - A Journal of Indian Zoology, Vol 117, No 3 (2017), Pagination: 264-273Abstract
Mantids belonging to 5 genera and 6 species (3 species new record) and phasmids belonging to 3 genera and 4 species (2 species new record) were collected from the islands of Andaman and Nicobar.Keywords
Andaman and Nicobar Islands, Mantodea, Phasmida, Records.Full Text
References
- Audinet-Serville, J.G.A. 1839. Histoire naturelle des Insects Orthopteres, 776 S., pls. 1-14; Paris.
- Bragg, P.E. 2001. Phasmids of Borneo. 772pp. Natural History Publications (Borneo), Sabah. (Systematics)
- Brunner von Wattenwyl, C. 1893. Revision du systeme des Orthopteres et description des especes rapportees par M. Leon Fea de Birmanie. Annali del Museo civico di Storia naturale di Genova, 13(2): 1-230.
- Brunner v. Wattenwyl, C. & J. Redtenbacher. 1906–1908. Die Insektenfamilie der Phasmiden I–III. Verlag von Wilhelm Engelmann. 589 pp.
- Ehrmann, R. 2002. Mantodea: Gottesanbeterinnen der Welt. Natur und Tier-Verlag, Münster, 519 pp.
- Fabricius, J.C. 1781. Species Insectorum Mantodea and Phasmodea. Bohn, Humburgi et Kilonii, 1: 8–552 pp.; Humburg and Kiel.
- Giglio-Tos, E. 1915. Mantidi Esotici. Generi e Specie Nuove, Bullettino della Società entomologica Italiana, 46: 31–108.
- Mukherjee, T.K., Hazra A.K. and Ghosh A.K. 1995. The mantid fauna of India (Insecta: Mantodea), Oriental Insects, 29: 185-358.
- Mukherjee, T.K., Ehrmann, R. and Chatterjee, P. 2014. Checklist of Mantodea (Insecta) from India. PRIAMUS, Centre for Entomological Studies, Ankara, Turkey, No. 30: 61 pp.
- Otte, D. and P. Brock. 2003. A catalog of the stick and leaf insects of the world. January 21, 2003, The Orthopterists’ Society, ISBN: 1-929014-03-1
- Saussure, H. De. 1869. Essai d‘un systeme des Mantides. Mitteheilungen der Schweizerischen entomologischen Gesellschaft. Bulletin de la Societe entomologique, Suisse, 3: 49-73.
- Saussure, H. de. 1871. Melanges Orthopterologiques: IV. Mantides. Memoires de la Societe de Physique et d’Histoire Naturelle de Geneve, suppl. 21(2): 239-337, pl. 7, Geneve.
- Shishodia, M.S. 1998. Faunal diversity of India, (Edited by J.R.B. Alfred, A.K. Das and A.K. Sanyal), Z.S.I. publication. Phasmida: 189.
- Stal, C. (1877 b) Espèces nouvelles de Phasmides. Annales de la Société Entomologique de Belgique, Comptes Rendues, 20: 62–68.
- Sureshan, P.M., Palot, J. Md. and Radhakrishnan, C. 2004. New Additions to the Mantid fauna (Insecta: Mantodea) of Andaman and Nicobar Islands. Zoos’ Print Journal, 19(7): 1544.
- Thunberg, C.P. 1784. Dissertatio entomologica novas insectorum specis sistens, III. Mantodea. Edmann, Jahan. Novae Insectorum Species, 3: 53-68, pl. 1, fig. 64-81; Uppsala.
- Werner, F. 1935. Further communication on Indian mantis or praying insects. Proceedings of the Zoological Society of London, 495-498, 1 fig. London.
- Westwood, J.O. 1848. The Cabinet of Oriental Entomology, London.
- Westwood, J.O. 1859. Catalogue of Orthopterous insects in the collection of the British Museum. Part 1, Phasmidae. British Museum, London. 195 pp., 40 plates.
- Wood-Mason, J. 1873. On new or little known species of Phasmidae. Part I. Genus Bacillus. Journal of the Asiatic Society of Bengal, 42(2): 45–56, pls. 9–11.
- Wood-Mason, J. 1875. On new or little known species of Phasmidae, with a brief preliminary notice of the occurance of a clasping apparatus in the males throughout the family. Journal of the Asiatic Society of Bengal, 44: 215–220.
- Wood-Mason. 1876. Description of a new Phasmideous Insect from the Andamans. Journal of the Asiatic Society Bengal, 45: 95
- Wood-Mason, J. 1882. On new and little known Mantodea, The Journal of the Asiatic Society of Bengal, 51(2): 21–36.
- Effect of Repeated Weld Repair on Austenitic Stainless Steel Welds
Abstract Views :302 |
PDF Views:5
Authors
Affiliations
1 Materials Technology Division, Indira Gandi Centre for Atomic Research, Kalpakkam-603 102, Tamilnadu, IN
1 Materials Technology Division, Indira Gandi Centre for Atomic Research, Kalpakkam-603 102, Tamilnadu, IN
Source
Indian Welding Journal, Vol 43, No 3 (2010), Pagination: 17-22Abstract
Austenitic stainless steel has been widely used as an ideal structural material for nuclear, petrochemical and other industries, due to its very good resistance to corrosion and other required properties. Welding is an important, inevitable and reliable joining process in the fabrication of heavy structural components. Often weld repair becomes unavoidable due to the presence of unacceptable defects specified by various codes. However, as a good practice, repeated weld repair is limited to a maximum of two times during fabrication. In practice, often more than two weld repairs become inevitable, albeit in rare occasions. Hence, a study was undertaken to find out the effect of repeated weld repair upto four times on the structural integrity and mechanical properties of the joints of austenitic stainless steel. Variation in microstructure, 5-ferrite content, hardness, tensile properties and impact toughness with number of repairs was examined. Results show the properties of the weld joint are not significantly affected by the repeated weld repair upto four times. Hence, repeated weld repair upto four times can be permitted on austenitic stainless steel welds under rare occasions that are inevitable.
Keywords
Weld Repair, Austenitic Stainless Steel, Impact Toughness, Delta Ferrite Content.- Range extension of Ictinogomphus decoratus (Selys, 1854) (Insecta: Odonata: Gomphidae) to India
Abstract Views :242 |
PDF Views:143
Authors
Affiliations
1 Southern Regional Centre, Zoological Survey of India, Chennai – 600028, Tamil Nadu, IN
2 Marine Biology Regional Centre, Zoological Survey of India, Chennai - 600028, Tamil Nadu, IN
1 Southern Regional Centre, Zoological Survey of India, Chennai – 600028, Tamil Nadu, IN
2 Marine Biology Regional Centre, Zoological Survey of India, Chennai - 600028, Tamil Nadu, IN
Source
Records of the Zoological Survey of India - A Journal of Indian Zoology, Vol 118, No 4 (2018), Pagination: 426-429Abstract
Ictinogomphus decoratus (Selys, 1854) (Insecta: Odonata: Gomphidae) is widely distributed in South East Asia. Here we report the range extension of the species to Indian Territory and new addition to the Indian Odonate fauna from the Little Andaman, Andaman and Nicobar Islands.Keywords
Andaman Islands, Biodiversity, Gomphidae, India.Full Text
References
- Babu, R., Subramanian, K. and Supriya Nandy 2013. Endemic Odonates of India. Rec. zool. Surv. India, Occ. Paper No. 347: 1-60.
- Chhotani, G., Lahiri, A.R. and Mitra, T.R. 1983. Contribution to the Odonate (Insecta) fauna of Andaman and Nicobar Islands with description of two new species. Rec. zool. Surv. India, 80: 467-494.
- Fraser, F.C. 1924. Report on a collection of dragonflies from the Andaman Islands. Rec. Indian Mus., 26: 409-414.
- Hamalainen, M. 2002. Notes on the Libellago damselflies of the Andaman and Nicobar Islands, with description of a new species (Zygoptera: Chlorocyphidae). Odonatologica, 31(4): 345-358.
- Hamalainen, M., Prasanth-Mohanraj and Veena Kumari, K. 1999. Additions to the Odonate fauna of the Andaman and Nicobar Islands, Indian Ocean. Notul. Odonatol., 5: 27-29.
- Lahiri, A.R. 1975. Report on the faunistic survey (Odonata) of the South Andaman Islands. Rec. zool. Surv. India, 68: 365-366.
- Lahiri, A.R. 1998. New records of Odonata (Insecta) from Little Andaman Island. Fraseria (N.S.), 5: 57-59.
- Lahiri. A.R. and Mitra. B. 1993. New records of dragonflies (Insecta: Odonata) from Bay Islands. J. Andaman Sci. Assoc., 9(1&2): 9699.
- Manh, C.D. 2011. Ictinogomphus decoratus. The IUCN Red List of Threatened Species 2011: e.T167416A6344987. Retrieved from: http://dx.doi.org/10.2305/IUCN.UK.2011-2.RLTS.T167416A 6344987.en
- Mitra, T.R. 1995. Additions to the Odonate fauna of Great Nicobar Islands, Indian Ocean. Opusc. zool. flumin., 129: 1-6.
- Mitra, T.R., Babu, R. and Subramanian, K.A. 2013. Anax panybeus Hagen, 1867: An addition to the Odonata (Aeshnidae) of India. J. Threatened Taxa, 5 (2): 3682-3683.
- Nandy, S. and Babu, R. 2009. On a collection of dragonflies (Odonata : Anisoptera) from Andaman & Nicobar Islands. Rec. zool. Surv. India, 109(4): 35-51.
- Nandy, S. and Babu, R. 2012. Insecta : Odonata. In: Fauna of Andaman and Nicobar Islands, State Fauna Series, 19(1): 33-68, Published by the Director, Zoological Survey of India, Kolkata.
- Ram, R., Chandra, K. and Yadav, K. 2000. Studies on the Odonate fauna of Andaman and Nicobar Islands. Rec. zool. Surv. India, 98(3): 25-60.
- Rajeshkumar, S. and Raghunathan, C. 2018. Description of a new species of Nososticta Hagen (Odonata: Platycnemididae: Disparoneurinae) from Central Nicobar Islands, India. Zootaxa, 4422(3): 431-441
- Rajeshkumar, S., Raghunathan, C. and Chandra, K. 2017. Nososticta nicobarica sp. nov. (Odonata: Platycnemididae: Disparoneurinae) from Great Nicobar Island, India. Zootaxa, 4311(3): 426-434.
- Selys Longchamps, E. de. 1854. Synopsis des Gomphines. Bull. Acad. r. Belg., 21(2): 23-113.
- Subramanian, K.A. and Babu, R. 2017. A Checklist of Odonata (Insecta) of India, Version 3.0. p. 1-51. www.zsi.gov.in
- Yeh, W.C. and Veenakumari, K. 2000. Description of Gynacantha andamanae Spec. Nov. from South Andaman Island, Indian Ocean (Anisoptera : Aeshnidae). Int. J. Odonatology, 3(2): 163-167.
- Hot Cracking Susceptibility of Nickel Base Alloy 718
Abstract Views :198 |
PDF Views:5
Authors
Affiliations
1 Materials Development Division, Indira Gandhi Centre for Atomic Research, Kalpakkam - 603 102, IN
2 Nuclear Systems Division Indira Gandhi Centre for Atomic Research, Kalpakkam - 603 102, IN
1 Materials Development Division, Indira Gandhi Centre for Atomic Research, Kalpakkam - 603 102, IN
2 Nuclear Systems Division Indira Gandhi Centre for Atomic Research, Kalpakkam - 603 102, IN
Source
Indian Welding Journal, Vol 30, No 3 (1997), Pagination: 14-19Abstract
Nickel base alloy 718, a precipitation-hardenable alloy, is used in the sodium-water heat exchanger of fast reactor steam generators. Although Alloy 718 is considered to be weldable, it is susceptible to fusion zone and heat affected zone (HAZ) cracking during welding. Two heats of 718 of thicknesses 2 mm and 4 mm were tested for hot cracking susceptibility using the moving torch Varestraint hot cracking test. A single bead technique was used to determine fusion zone and base metal HAZ cracking susceptibility. Alloy 600, a solid solution alloy, was also tested for comparison. The hot cracking tests showed that the Alloy 718 was much more susceptible to fusion zone and HAZ cracking than 600. The fusion zone cracking susceptibilities of the two heats of Alloy 718 are shown not to depend on linear heat input values used in the testing. This is presumably due to the differing cooling rates as slower cooling rates lead to a higher cracking tendency despite lower heat input.- Integration of Renewable Energy Sources into the Electricity Smart Grid:Study
Abstract Views :196 |
PDF Views:0
Authors
Affiliations
1 Additional Deputy General Manager/Thermal Power Station-2 NLC India Limited, Neyveli-7, IN
1 Additional Deputy General Manager/Thermal Power Station-2 NLC India Limited, Neyveli-7, IN
Source
Indian Journal of Power and River Valley Development, Vol 70, No 3&4 (2020), Pagination: 44-48Abstract
Smart grid technology is the key for an efficient use of distributed energy resources. The smart grid is the future conversion for the techniques and strategies of production and the interaction of all the components of power grid. Noting the climate change becomes an important topic of concern, the whole world is currently facing the ever increasing price of petroleum products, coal etc and also the reduction in cost of renewable energy power systems, giving opportunities for renewable energy systems to address electricity generation. However, to achieve this task, an efficient energy management system needs to be addressed. In this context, the concept of smart grid plays a crucial role and can be successfully applied to the power systems. This paper presents the study of integrating renewable energy in smart grid system. The introductory part provides the role of renewable energy and distributed generation in smart grid system. The concept of smart grid renewable energy system and its applications along with the PV smart grid system are also been discussed and studied. It concludes that smart grids offer solutions to various challenges associated with variable RE, including providing additional flexibility, unlocking demand side participation, and deferring more costly grid upgrades. This paper also discusses about the following:
• What are the challenges of integrating variable RE into power grids?
• What types of smart grid solutions are emerging to integrate variable RE?
• What are the good examples from around the world of smart grids aiding in the integration of variable RE?
• What types of policy and regulatory approaches are emerging to support smart grid solutions in relation to RE?
References
- (1) International Journal of Science and Research (IJSR) ISSN (Online), Integration of Renewable Energy Sources in Smart Grid by Sushmita Banerjee1, Abhishek, Meshram 2, N. Kumar Swamy 3
- (2) Grid Integration of Renewables in India An Analysis of Forecasting, Scheduling and Deviation Settlement Regulations By Ashwin Gambhir | Jatin Sarode | Shantanu Dixit.
- The Spirit af a Giant
Abstract Views :208 |
PDF Views:67
Authors
Affiliations
1 Raman Research Institute (Retired), 190, I Main Road, I Block, BEL Layout, Vidyaranyapura, Bengaluru 560 097, IN
1 Raman Research Institute (Retired), 190, I Main Road, I Block, BEL Layout, Vidyaranyapura, Bengaluru 560 097, IN
Source
Current Science, Vol 119, No 9 (2020), Pagination: 1469-1473Abstract
No Abstarct.Full Text
- Integration and Flexibilization of Steam Power Plants with Growing Renewable Energy Systems
Abstract Views :77 |
PDF Views:0
Authors
Affiliations
1 Additional Deputy General Manager, Thermal Power Station-2 NLC India Limited, Neyveli-7, IN
1 Additional Deputy General Manager, Thermal Power Station-2 NLC India Limited, Neyveli-7, IN
Source
Indian Journal of Power and River Valley Development, Vol 72, No 3&4 (2022), Pagination: 74-79Abstract
Increasing the flexibility of conventional power plants is one key challenge for the massive integration of highly volatile renewable energy resources into the Indian power system. Flexible power plants ensure the security of supply by compensating fluctuations in the electrical grid caused by intermittent renewable energy production from wind and sun. In this paper, the future development of the Indian electricity market is predicted and evaluated in terms of the future flexibility demand of coal and Lignite-fired power plants. As the flexibility measures for coal-fired power plants generally use inherent capabilities of the existing power plant systems, they are usually restricted by limiting factors. Here, the limiting factors for reducing the minimum load and increasing load change rates are discussed and potential measures to mitigate their influence are presented. An alternative way to increase the flexibility lies in properly integrating thermal energy storages. Integrating this storage concept the electrical minimum load can be reduced while simultaneously increasing the load change rate.Keywords
Integration and Flexibilization, Future Development, Renewable Energy Systems, Energy MixReferences
- Flexibilization of steam power plants as partners for renewable energy systems, M. Richter, F. Möllenbruck, F. Obermüller, A. Knaut, F. Weiser, H. Lens, D. Lehmann. Chair of Environmental Process Engineering and Plant Design, University Duisburg-Essen, 45141 Essen, Germany.
- Institute of Energy Economics at the University of Cologne, 50827 Cologne, Germany 3STEAG Energy Services GmbH, 45128 Essen, Germany.
- Efficacy of Insecticides Against Pink Stem Borer Sesamia Inferens Walker Infesting Barnyard Millet Echinochloa Frumentacea
Abstract Views :68 |
PDF Views:52
Authors
Affiliations
1 Department of Agricultural Entomology, Agricultural College and Research Institute (TNAU), Madurai 625104, Tamil Nadu, IN
1 Department of Agricultural Entomology, Agricultural College and Research Institute (TNAU), Madurai 625104, Tamil Nadu, IN
Source
Indian Journal of Entomology, Vol 84, No 1 (2022), Pagination: 126-128Abstract
Pink stem borer Sesamia inferens causes deadheart and white ear symptoms by boring into stem
and peduncle region causing yield losses in barnyard millet. A field trial to find out efficacy of cartap
hydrochloride 4G, chlorantraniliprole 18.5SC, flubendiamide 20WG, emamectin benzoate 5SG, spinetoram 11.7SC and phorate 10G against S. inferens was carried out in Tamil Nadu. Spinetoram 11.7SC (92.63%) was the most effective followed by flubendiamide 20WG (90.56%). Phorate 10G (81.57%) was found to be less effective. Plots treated with spinetoram 11.7SC gave maximum yield (9.57 q/ ha) with the cost benefit ratio of 1:3.08 followed by flubendiamide 20% WG (8.91 q/ ha) with the cost benefit ratio of 1:3.42. Phorate 10 G was the least performing treatment with 29.62% increase in yield over control with the co
Keywords
Sesamia inferens, Echinochloa frumentacea, insecticides, deadheart, white ear, spinetoram, chlorantraniliprole, phorate, yield, cost benefit ratioFull Text
References
- Changmei S, Dorothy J. 2014. Millet- the frugal grain. International Journal of Scientific Research and Reviews 3(4): 75-90.
- Deole S, Dubey V K, Rana D K and Gauraha R. 2017. Evaluation of newer insecticides against pink stem borer: Major constraint insect pest of maize in Raipur, Chhattisgarh. Journal of Plant Development Sciences 9(4): 335-339.
- Gahukar R, Reddy V P. 2019. Management of economically important insect pests of millet. Journal of Integrated Pest Management 10(1): 1-10. Gomashe S S. 2017. Barnyard millet: Present status and future thrust areas: biology and genetic improvement. Millets and Sorghum 134: 184-198.
- Gomez K A, Gomez A A. 1984. Statistical procedures for agricultural research. 2 nd edition, John Wiley and Sons, New York: 680.
- Kumar R. 2018. Assessment of different insecticides against maize stem borer infestation. International Journal of Current Microbiology and Applied Sciences 7: 790-800.
- Reddy M, Babu T R, Reddy D D R, Sreeramalu M. 2003. Determination of economic injury and threshold levels for pink borer Sesamia inferens(Walker) in maize Zea maysL. International Pest Control 45(5): 260-263.
- Renganathan V G, Vanniarajan C, Karthikeyan A, Ramalingam J. 2020. Barnyard millet for food and nutritional security: Current status and future research direction. Frontiers in Genetics 11: 1-21.
- Santhosh H B, Sekhar J C, Rakshit S, Gadag R N, Sain D. 2008. Detection of epistatic interaction for susceptibility towards pink stem borer (Sesamia inferens Walker) in maize (Zea mays L.). Indian Journal of Genetics and Breeding 72(3): 284-289.
- Sahu N, Deole S. 2017. Bio-rational insecticides against pink stem borer, Sesamia inferens Walker of maize. Journal of Applied Zoological Research 28(2): 209-215.
- Sasmal A. 2018. Management of pink stem borer (Sesamia inferens walker) in finger millet (Eleusine coracana Gaertn.). Journal of Entomology and Zoology Studies 6(5): 491-495.
- Sidar Y K, Deole S, Gajbhiye R K, Nirmal A. 2017. To evaluate the bio-efficacy of granular insecticide molecules against pink stem borer. Journal of Entomology and Zoology Studies 5(2): 1114-1120.
- Biology of Pink Stem Borer Sesamia Inferens Walker on Barnyard Millet Echinochloa Frumentacea
Abstract Views :92 |
PDF Views:68
Authors
Affiliations
1 Department of Agricultural Entomology, Agricultural College and Research Institute, TNAU, Madurai 625104, Tamil Nadu, IN
1 Department of Agricultural Entomology, Agricultural College and Research Institute, TNAU, Madurai 625104, Tamil Nadu, IN
Source
Indian Journal of Entomology, Vol 84, No 1 (2022), Pagination: 137-139Abstract
Laboratory study was conducted to assess the biology of pink stem borer Sesamia inferens Walker on barnyard millet during February to April. The eggs were round and creamy white, and were laid inside the leaf sheath. The incubation period was 10.88± 0.41 days, and hatching % was 68.19± 1.16 and the larva had six instars. The weight of first, second, third, fourth, fifth and sixth instar were 0.21± 0.01, 6.86± 0.57, 36.29± 2.79, 63.75± 2.06, 135.97± 2.57 and 225.05± 4.65 mg, respectively; duration of these instars was 3.76± 0.23, 3.92± 0.17, 5.08± 0.21, 5.52± 0.28, 5.72± 0.23 and 6.68± 0.36 days, respectively. The total larval and prepupal duration were 30.68± 0.89 days and 1.48± 0.10 days, respectively, with a pupation of 86.4± 1.86% and pupal period of 9.96± 0.46 days. The pupal weights of males were 138.12± 3.05 mg and females were 196.63± 1.56 mg. The adult emergence was 84.4± 1.93%, with female being larger than males; with filiform antenna, while the had bipectinate antenna. The weight of male adult was 110.20± 4.73 mg and female adult was 189.30± 9.40 mg, and longevity was 4.92± 0.16 6.4± 0.21 days, in male and female, respectively. The fecundity ranged from 28 to 226 eggs/ female (118.4± 12.09) and the total lifecycle ranged from 41 to 63 days (51.2± 1.44 days) for male and from 47 to 70 days (58.12± 1.47 days) for female.
Keywords
Sesamia inferens, Echinochloa frumentacea, egg, larva, pupa, adult, duration, weight, sex ratio, pupation, longevity, fecundity, lifecycleFull Text
References
- Changmei S, Dorothy J. 2014. Millet- the frugal grain. International Journal of Scientific Research and Reviews 3(4): 75-90.
- Chaudhari N S, Patel A A, Deb S, Patel P S. 2018. Biology of pink stem borer, Sesamia inferens(Walker) on wheat. An International e Journal 7 (2): 133-147.
- Gahukar R, Reddy V P. 2019. Management of economically important insect pests of millet. Journal of Integrated Pest Management 10(1): 1-10. Gomashe S S. 2017. Barnyard millet: Present status and future thrust areas: Biology and genetic improvement. Millets and Sorghum 134: 184–198.
- Gomez K A, Gomez A A. 1984. Statistical procedures for agricultural research. 2nd edition, John Wiley and Sons, New York: 680.
- Reddy M, Babu T R, Reddy D D R, Sreeramalu M. 2003. Determination of economic injury and threshold levels for pink borer Sesamia inferens(Walker) in maize Zea maysL. International pest control 45(5): 260-263.
- Renganathan V G, Vanniarajan C, Karthikeyan A, Ramalingam J. 2020. Barnyard millet for food and nutritional security: Current status and future research direction. Frontiers in Genetics 11: 1-21.
- Santhosh H B, Sekhar J C, Rakshit S, Gadag R N, Sain D. 2008. Detection of epistatic interaction for susceptibility towards pink stem borer (Sesamia inferens Walker) in maize (Zea mays L.). Indian Journal of Genetics and Breeding 72(3): 284-289.
- Sharma H, Jaglan M S, Yadav S S. 2017. Biology of pink stem borer, Sesamia inferens(Walker) on maize, Zea mays. Journal of Applied and Natural Science 9 (4): 1994-2003.
- Singh B, Kular J S. 2015a. Influence of abiotic factors on population dynamics of pink stem borer, Sesamia inferens Walker in rice-wheat cropping system of India. Journal of Wheat Research 7 (2): 23-28.
- Singh B, Kular J S. 2015b. Notes on the bionomics of the pink stem borer, Sesamia inferensWalker (Lepidoptera: Noctuidae): an upcoming pest of wheat in India.Acta Phytopathologica et Entomologica Hungarica 50 (2): 239-259.