193 research outputs found

    ANALYSIS OF GRE PIPES WITH EPOXY RESIN COMPOSITE MATERIAL AND MATERIAL TEST SPECIFICATION

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    At present scenario composite materials has been extensively used in variety of fields right from house holds to aircrafts for its superior properties like lower specific weight, strength to weight ratio and modulus to weight ratio. In this project effort has been made to extend its application to pipes. Conventional pipes have its own disadvantages such as higher specific weight, low corrosion resistance and low strength which can be replaced by the composite pipes .Design of composite pipe has been done as conventional pipe for its inner diameter and its wall thickness. Structural analysis has been made with ANSYS 12 for its deformation and stress. Comparative study of ANSYS results for M.S.PIPES, and GRE pipes were done to justify the usage of GRE pipes.Filament winding process has been adopted to manufacture GRE pipes in a conventional lathe by implementing a winding setup. Hardness test and compressive test of GRE pipes to be done to assess its strength, leak and corrosion test for its ability to carry liquids. ย  Key words:- {?} ij -Stress component,ย  ย ย [C]ย ย ย  ijkl- Stiffness marix,ย  {? } ij - ย ย ย ย ย ย  Strain component , ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย [S]ijkl -ย  Compliance matrix ,ย ย  GRE - Glass reinforced epoxy,ย  PAN -ย  Poly acrylo nitrile

    เด•เดจเตเดจเตเด•เดพเดฒเดฟเด•เตพเด•เตเด•เต เดชเตเดฐเต‹เดฌเดฟเดฏเต‹เดŸเตเดŸเดฟเด•เตโ€Œเดธเตเด‚, เดฌเตˆเดชเดพเดธเต เด•เตŠเดดเตเดชเตเดชเตเด‚

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    เดฆเดนเดจ เดตเตเดฏเต‚เดนเดคเตเดคเดฟเดฒเตเดณเตเดณ เด‰เดชเด•เดพเดฐเดฟเด•เดณเดพเดฏ เด…เดฃเตเด•เตเด•เดณเตเดŸเต† เด‰เดคเตโ€Œเดชเดพเดฆเดจเด‚ เด•เต‚เดŸเตเดŸเดฟ เด•เดพเดฒเดฟเด•เดณเตเดŸเต† เดตเดณเตผเดšเตเดšเดฏเตเด•เตเด•เตเด‚, เดฐเต‹เด—เดชเตเดฐเดคเดฟเดฐเต‹เดงเดถเด•เตเดคเดฟเด•เตเด•เตเด‚ เดธเดนเดพเดฏเดฟเด•เตเด•เตเดจเตเดจ เดชเดฆเดพเตผเดคเตเดฅเด™เตเด™เดณเดพเดฃเต เดชเตเดฐเต‹เดฌเดฏเต‹เดŸเตเดŸเดฟเด•เตเด•เตเด•เตพ. เดชเตเดฐเต‹เดฌเดฏเต‹เดŸเตเดŸเดฟเด•เตเด•เตเด•เดณเดฟเตฝ เดฌเดพเด•เตเดŸเต€เดฐเดฟเดฏ, เดซเด‚เด—เดธเต, เดฏเต€เดธเตเดฑเตเดฑเต เดŽเดจเตเดจเดฟเดตเดฏเดพเดฃเตเดณเตเดณเดคเต

    เด•เตผเดทเด• เดชเด™เตเด•เดพเดณเดฟเดคเตเดค เดธเด‚เดฐเด‚เดญเด™เตเด™เตพ

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    เดŽเดฑเดฃเดพเด•เตเดณเด‚ เดœเดฟเดฒเตเดฒเดพ เด•เตƒเดทเดฟ เดตเดฟเดžเตเดœเดพเดจ เด•เต‡เดจเตเดฆเตเดฐเด‚ เด•เตผเดทเด•เดฐเตเดฎเดพเดฏเดฟ เดธเดนเด•เดฐเดฟเดšเตเดšเตเด•เตŠเดฃเตเดŸเต เดถเดพเดธเตเดคเตเดฐเต€เดฏ เดฐเต€เดคเดฟเดฏเดฟเดฒเตเดณเตเดณ เด•เดฐเดฟเดฎเต€เตป เดตเดฟเดคเตเดคเตเตฝเดชเตเดชเดพเดฆเดจเด‚, เดฎเตเดฏเตฝ เด•เตเดžเตเดžเตเด™เตเด™เดณเตเดŸเต† เด‰เดคเตเดชเดพเดฆเดจเด‚ เดŽเดจเตเดจเดฟเดต เดตเตเดฏเดพเดตเดธเดพเดฏเดฟเด• เด…เดŸเดฟ เดธเตเดฅเดพเดจเดคเตเดคเดฟเตฝ เดจเดŸเดคเตเดคเตเดตเดพเตป เดคเต€เดฐเตเดฎเดพเดจเดฟเดšเตเดšเดฟเดฐเดฟเด•เตเด•เตเดจเตเดจเต. เดฎเต‡เตฝ เดชเดฑเดžเตเดžเดตเดฏเตเดŸเต† เดตเดฟเดชเดฃเดจเด‚ เด•เต†.เดตเดฟ.เด•เต†. เดตเดดเดฟ เดจเดŸเดคเตเดคเตเดจเตเดจเดคเตเด•เตŠเดฃเตเดŸเต เดชเด™เตเด•เดพเดณเดฟเดฏเดพเดฏ เดธเด‚เดฐเด‚เดญเด•เตผเด•เตเด•เต เดฒเดพเดญเด•เดฐเดฎเดพเดฏ เดธเด‚เดฐเด‚เดญเดฎเดพเดฏเตเด‚ เด•เตผเดทเด•เตผเด•เตเด•เต เด—เตเดฃเดฎเต‡เดจเตเดฎเดฏเตเดณเตเดณ เด•เตเดžเตเดžเตเด™เตเด™เดณเต† เดฒเดญเตเดฏเดฎเดพเด•เตเด•เตเดจเตเดจเดคเดฟเดจเตเดณเตเดณ เด…เดตเดธเดฐเดฎเดพเดฏเตเด‚ เดˆ เดชเดฆเตเดงเดคเดฟ เดตเตผเดคเตเดคเดฟเด•เตเด•เตเดจเตเดจเต. เดˆ เดชเดฆเตเดงเดคเดฟเดฏเดฟเตฝ เดคเดพเตฝเดชเดฐเตเดฏเดฎเตเดณเตเดณ เด•เตผเดทเด•เตป เด…เดชเต‡เด•เตเดท เดธเดฎเตผเดชเตเดชเดฟเด•เตเด•เตเดจเตเดจเดคเดฟเดจเดจเตเดธเดฐเดฟเดšเตเดšเต เด•เต†เดตเดฟเด•เต†เดฏเดฟเดฒเต† เดธเดพเด™เตเด•เต‡เดคเดฟเด• เดตเดฟเดฆเด—เตโ€Œเดฆเตผ เดธเตเดฅเดฒเด‚ เดธเดจเตเดฆเตผเดถเดฟเดšเตเดšเต เดธเดพเดนเตเดฏเดšเดฐเตเดฏเด™เตเด™เดณเตเด‚ เดธเตเดฅเดฒเดธเต—เด•เดฐเตเดฏเด™เตเด™เดณเตเด‚ เด…เดจเตเดฏเต‹เดœเตเดฏเดฎเดพเดฃเต‹ เดŽเดจเตเดจเต เด‰เดฑเดชเตเดชเดพเด•เตเด•เตเดจเตเดจเดคเดพเดฃเต. เดคเตเดŸเตผเดจเตเดจเต เด…เดจเตเดฏเต‹เดœเตเดฏเดฐเดพเดฏ เด•เตผเดทเด•เตผเด•เตเด•เต เดธเดพเดงเตเดฏเดคเดพ เดชเด เดจ เดฑเดฟเดชเตเดชเต‹เตผเดŸเตเดŸเตเด‚, เดธเดพเด™เตเด•เต‡เดคเดฟเด•เดพ เดตเดฟเดตเดฐ เดฑเดฟเดชเตเดชเต‹เตผเดŸเตเดŸเตเด‚, เดŽเดธเตเดฑเตเดฑเดฟเดฎเต‡เดฑเตเดฑเตเด‚ เดคเดฏเตเดฏเดพเดฑเดพเด•เตเด•เดฟ เดจเตฝเด•เตเดจเตเดจเดคเดพเดฃเต. เดฎเต‡เตฝ เดชเดฑเดžเตเดž เดฑเดฟเดชเตเดชเต‹เตผเดŸเตเดŸเตเด•เตพ เดชเตเดฐเด•เดพเดฐเด‚ เดธเต—เด•เดฐเตเดฏเด™เตเด™เตพ เด’เดฐเตเด•เตเด•เตเดจเตเดจ เด•เตผเดทเด•เดฐเตเดฎเดพเดฏเดฟ เด’เดฐเต เดธเด‚เดฏเตเด•เตเดค เด‰เดŸเดฎเตเดชเดŸเดฟเดฏเดฟเตฝ เดเตผเดชเตเดชเต†เดŸเตเดจเตเดจเดคเตเด‚ เด‡เดตเดฐเต† เด•เต†.เดตเดฟ.เด•เต†.เดฏเตเดŸเต† เดตเดฟเดคเตเดคเตเตฝเดชเดพเดฆเดจ เดชเด™เตเด•เดพเดณเดฟเดฏเดพเดฏเดฟ เด…เด‚เด—เต€เด•เดฐเดฟเด•เตเด•เตเดจเตเดจเดคเตเดฎเดพเดฃเต. เด‡เดคเตเดคเดฐเด‚ เดฏเต‚เดฃเดฟเดฑเตเดฑเตเด•เดณเต† เด•เต†.เดตเดฟ.เด•เต†.เดฏเตเดŸเต† เด‰เดชเด—เตเดฐเดน เดตเดฟเดคเตเดคเตเดฒเตโ€Œเดชเดพเดฆเดจ เด•เต‡เดจเตเดฆเตเดฐเด™เตเด™เตพ เดŽเดจเตเดจเดพเดฏเดฟเดฐเดฟเด•เตเด•เตเด‚ เดจเดพเดฎเด•เดฐเดฃเด‚ เดšเต†เดฏเตเดฏเตเด•

    Populerization of maize among the small farmers of Ernakulam district of Kerala through front line demonstration

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    To popularise maize crop (Zea maize) among small farmers of Ernakulam district of Kerala, Krishi Vigyan Kendra, ICARCentral Marine Fisheries Research Institute organised 25 demonstrations during 2012-13 to 2014-15 on traditional farmerโ€™s field. Maize cultivars Pratap-4 and Pratap-5 were used for demonstration during January to May and September to December season. Farmers were motivated and trained for maize seed multiplication and cultivation aspects. Results of demonstration revealed that Pratap-4, Pratap-5 and local variety produced 33.70, 30.7 and 23.4 q/ha, respectively. Average income generated by the crop range from Rs. 40440/- to Rs. 36840/- and local variety Rs. 30240/-. Cost benefit ratio was 2.18, 1.99 and 1.77. for Pratap-4 , Pratp-5 and local variety, respectively. Technology index was reduced in the 2nd and 3rd year showed the feasibility of maize crop in the area. Thereafter, 500 farmers initiated the small scale farming of maize in the district with the technical guidance provided from KVK

    KVK Ernakulam Newsletter (malayalam) April 2014 to Sept, 2014

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    KVK Ernakulam Newsletter (malayalam) April 2014 to Sept, 2014KVK Ernakulam Newsletter (malayalam) April 2014 to Sept, 2014Not Availabl

    Evaluation of Front Line Demonstration of Cassava (Manihot esculenta Crantz) in Ernakulam District of Kerala, India

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    To popularize Cassava (Manihot esculenta Crantz.) among the farmers of Ernakulum district of Kerala, a front line demonstration organized by Krishi Vigyan Kendra, ICAR- Central Marine Fisheries Research Institute on 10 selected farmerโ€Ÿs field during 2010-11. For this purpose, two cultivars of Cassava i.e. โ€œSree vijayโ€ and โ€œlocal varietyโ€ were used and the demonstration was conducted during the kharif season of (May to September). The results of demonstration revealed that Sree vijay and local variety produced 250 and 150 q/ha, respectively. The average income of Sree vijay was 1.66% higher compare to local cultivar. Net return and Cost benefit ratio of Sree vijay and local cultivar were Rs. 175000 and 1.42 and 90000 and 1.66, respectively. Overall, the results of our study suggests that front line demonstration (FLDS) on farmerโ€Ÿs field has the potential for in knowledge of the farmer as well as showed high level at satisfaction about technolog

    Decade of Progress in Technology Dissemination: Illustrated through Newspaper Clippings

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    ICAR-Krishi Vigyan Kendra (Ernakulam) CMFRI: A Decade of Progress in Technology Dissemination: Illustrated through Newspaper Clipping

    Highly cited articles in the field of male infertility and antioxidants: a scientometric analysis

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    Purpose The objective of this scientometric analysis was to recognize the top 100 cited articles on โ€˜Male infertility and Antioxidantsโ€™ and analyze its publication characteristics. Materials and Methods The Scopus database was used to retrieve related articles and the top 100 identified based on citation rate. Results The articles were published in 56 journals between 1995 and 2019 with a median (interquartile range) citation score of 17 (5โ€“62). Among the top 100 articles, 69 were clinical studies, which included controlled and blinded (33.33%), prospective (27.54%), randomized-controlled trials (26.09%), uncontrolled (11.59%), and retrospective (1.45%) studies. In addition to conventional semen parameters, advanced sperm function tests such as oxidative stress (51%) and sperm DNA damage (23%) were reported. Pregnancy rate (33%) was found to be the most reported reproductive outcome. Antioxidant therapy was mostly investigated in male cohorts with sperm abnormalities such as asthenozoospermia (28%) and clinical conditions such as idiopathic male infertility (20%), varicocele/varicocelectomy (17%) and general male infertility (16%). Conclusions The most influential publications on antioxidants and male infertility were identified for the first time in the literature. This will serve as a reliable source of information for researchers and clinicians alike

    Ultrafast All-Polymer Paper-Based Batteries

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    Conducting polymers for battery applications have been subject to numerous investigations during the last two decades. However, the functional charging rates and the cycling stabilities have so far been found to be insufficient for practical applications. These shortcomings can, at least partially, be explained by the fact that thick layers of the conducting polymers have been used to obtain sufficient capacities of the batteries. In the present letter, we introduce a novel nanostructured high-surface area electrode material for energy storage applications composed of cellulose fibers of algal origin individually coated with a 50 nm thin layer of polypyrrole. Our results show the hitherto highest reported charge capacities and charging rates for an all polymer paper-based battery. The composite conductive paper material is shown to have a specific surface area of 80 m2 g-1 and batteries based on this material can be charged with currents as high as 600 mA cm-2 with only 6 % loss in capacity over 100 subsequent charge and discharge cycles. The aqueous-based batteries, which are entirely based on cellulose and polypyrrole and exhibit charge capacities between 25 and 33 mAh g-1 or 38-50 mAh g-1 per weight of the active material, open up new possibilities for the production of environmentally friendly, cost efficient, up-scalable and lightweight energy storage systems. There is currently a great interest in the development of thin, flexible, lightweight, and environmentally friendly batteries and supercapacitors.1 In this process, the preparation of novel redox polymer and electronically conducting polymer-base
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