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Elastic Properties of Clinopyroxene Based Glasses along Diopside (CaMgSi2O6)-Jadeite (NaAlSi2O6) Join

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Journal of Minerals and Materials Characterization and Engineering 2012年第3期11卷 267-284页

作者： Rinkel Jindal Widiya Jatmiko indra Vir singh R. Jayaganthan Department of Glass and Ceramic Composites Institute of Mineral Engineering RWTH Aachen Mauerstr. 5 52064 Aachen Germany Department of Mechanical and Industrial Engineering Indian Institute of Technology Roorkee Roorkee 247667 India Department of Metallurgical and Materials Engineering & Centre of Nano-technology Indian Institute of Technology Roorkee Roorkee 247667 India

The elastic properties of glasses along Diopside (CaMgSi2O6)-Jadeite (NaAlSi2O6) join (Dix - Jd1-x where x=20, 40, 60, 80, 100 mole %), were obtained by the ultrasonic echography technique, at room temperature. The correlation of elastic moduli with the atomic packing density of these glasses was discussed. The derived experimental values of Young’s modulus, bulk modulus, shear modulus and Poisson’s ratio for investigated glasses were compared with those theoretically calculated values in terms of the Makishima–Mackenzie model and the modified model presented by Rocherulle.

关键词： Glass Diopside Mechanical properties

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Submergence Analysis Using Geo-Informatics Technology for Proposed Dam Reservoirs of Par-Tapi-Narmada River Link Project, Gujarat State, India

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International Journal of Geosciences 2014年第6期5卷 622-633页

作者： Khalid Mehmood Ajay Patel Vijay singh Sumit Prajapati Manik Hari Kalubarme indra Prakash Keshav Prasad Gupta Bhaskarcharya Institute for Space Applications and Geo-Informatics (BISAG) Department of Science & Technology Government of Gujarat Gandhinagar India National Water Development Agency (NWDA) Valsad India

The Par-Tapi-Narmada river link envisages transfer of surplus water from west flowing rivers between Par and Tapi in Gujarat State, India to water deficit areas in North Gujarat. The scheme is located mainly in southern Gujarat but it also covers part of the areas of Maharashtra, North of Mumbai on the Western Ghats of India. The main aim of Par-Tapi-Narmada link is to transfer the surplus waters of Par, Auranga, Ambica and Purna River basins to take over part of Narmada Canal command (Miyagam branch) after providing enroute irrigation. It is proposed that water saved in Sardar Sarovar Project, as a result of this transfer, would be taken further northwards to benefit water scarce areas of north Gujarat and also westwards in Saurashtra and Kutch regions. The construction of seven reservoirs on Par-Tapi-Narmada River Link Project would affect land use/land cover, settlements and infrastructure facilities within and around reservoir area. Thus, the submergence impact analysis of all the seven reservoirs of this project have been carried out by using remote sensing and GIS techniques for planning and designing of the structures. Out of the seven reservoirs, the paper discusses submergence analysis of Kelwan Dam reservoir which is located in geologically complex region of the Dangs district. The study attempts to assess the present problems of submergence of land, forest, agriculture, settlements and infrastructure facilities by using GIS techniques for taking alternative remedial measures prior and during construction of the dams.

关键词： Par-Tapi-Narmada Link Project Land Use/Land Cover Classification Submergence Analysis GIS Environment Indian Remote Sensing Satellite (IRS) LISS-IV Digital Data

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