Indian Institute of Technology Kharagpur

About: Indian Institute of Technology Kharagpur is a education organization based out in Kharagpur, India. It is known for research contribution in the topics: Computer science & Dielectric. The organization has 16887 authors who have published 38658 publications receiving 714526 citations.

Recent advances in CNT/graphene based thermoelectric polymer nanocomposite: A proficient move towards waste energy harvesting

Abstract: Carbon nano tube (CNT)/graphene filled organic composites have great potential for making cheaper thermoelectric materials towards their gear up for applications in energy harvesting due to their low cost, low density, facile routes of preparations, versatile processability and low thermal conductivity. These properties make them superior compared to previously reported hybrid alloys. Now a day׳s CNT and graphene are most frequently used nanofillers due to their unique shape and characteristics such as superconductivity, light weight, high stiffness and axial strength. Moreover, to achieve superior dispersion and properties of composites, various functionalizations on the graphene and CNT have been accomplished by various research groups. Foremost objective of this paper is to highlight the recent research advances on CNT and graphene filled thermoelectric (TE) materials for the replacement of inorganic semiconductors. Fundamentally, for polymer composite based thermoplastic (TP) materials, a thermally nonconductive but electrically connected nano-structured network should be established.

Spatial and temporal drought analysis in the Kansabati river basin, India

Abstract: The identification, monitoring and characterization of droughts are of great importance in water resources planning and management. To investigate the spatial and temporal relationships of drought occurrence, the Standardized Precipitation Index (SPI) (calculated from the probability distribution of precipitation using a two‐parameter gamma function) was used. The SPIs were applied at the local scale using monthly rainfall data for the period of 1965–2001 from five raingauge stations in the basin. The basin is divided into 25 grid‐cells of 13 × 13 km with each grid correspondence to approximately 4% of total area. The inverse distance weighting (IDW) approach is used for the spatial interpolation of rainfall at each grid point. Drought severity is then assessed from the estimated gridded SPI values at multiple time scales. The spatial and temporal characteristics of SPI are used to develop drought severity – area – frequency curves that can assess the severity of the localized drought within the ...