Tapan Sarkar - Academia.edu (original) (raw)
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Papers by Tapan Sarkar
IEEE Antennas and Propagation Magazine, 2015
This paper presents the implementation and the effect of broadband matching in simultaneous infor... more This paper presents the implementation and the effect of broadband matching in simultaneous information and power transfer. The narrowband characteristic of antennas limited the applications of simultaneous information and power transfer. The simplified real frequency technique (SRFT) and the nonfoster matching technique have been presented to improve the performance in terms of channel capacity and power delivery. Electromagnetic simulation and multiobjective optimization are performed to analyze the tradeoff between the channel capacity and power delivery in different matching conditions. The performance gain using the matching networks have been demonstrated and analyzed.
The river Jaldhaka is a glacier feed torrential river and originates from Bitang lake in Sikkim. ... more The river Jaldhaka is a glacier feed torrential river and originates from Bitang lake in Sikkim. This river is famous for cold water as well as warm water fishes. A study was carried out from March 2014 to February 2016 to assess the Ichthyofauna density and diversity indices in the river Jaldhaka. A total of 119 fish species belongs to 10 order, 29 families and 72 genera were recorded. Monthly variation of Catch per unit effort (CPUE), number of ichthyofauna genera, Shannon-Wiener diversity index (H'), evenness index (J'), Margalef's richness index and dominance index was varied from 38 to 115, 30 to 67, 3.34 to 4.13, 0.927 to 0.988, 7.97 to 13.74 and 0.016to 0.034 respectively over the study period. Catch per unit effort (CPUE), number of ichthyofauna genera, Shannon-Wiener diversity index (H') and Margalef's richness index were recorded maximum during monsoon season. Out of 119 fish species 19 Endangered, 44 vulnerable species, 17 low risks near threatened and 4 low risks least concern fishes were recorded.
IEEE Antennas and Propagation Magazine, 2015
This paper presents the implementation and the effect of broadband matching in simultaneous infor... more This paper presents the implementation and the effect of broadband matching in simultaneous information and power transfer. The narrowband characteristic of antennas limited the applications of simultaneous information and power transfer. The simplified real frequency technique (SRFT) and the nonfoster matching technique have been presented to improve the performance in terms of channel capacity and power delivery. Electromagnetic simulation and multiobjective optimization are performed to analyze the tradeoff between the channel capacity and power delivery in different matching conditions. The performance gain using the matching networks have been demonstrated and analyzed.
The river Jaldhaka is a glacier feed torrential river and originates from Bitang lake in Sikkim. ... more The river Jaldhaka is a glacier feed torrential river and originates from Bitang lake in Sikkim. This river is famous for cold water as well as warm water fishes. A study was carried out from March 2014 to February 2016 to assess the Ichthyofauna density and diversity indices in the river Jaldhaka. A total of 119 fish species belongs to 10 order, 29 families and 72 genera were recorded. Monthly variation of Catch per unit effort (CPUE), number of ichthyofauna genera, Shannon-Wiener diversity index (H'), evenness index (J'), Margalef's richness index and dominance index was varied from 38 to 115, 30 to 67, 3.34 to 4.13, 0.927 to 0.988, 7.97 to 13.74 and 0.016to 0.034 respectively over the study period. Catch per unit effort (CPUE), number of ichthyofauna genera, Shannon-Wiener diversity index (H') and Margalef's richness index were recorded maximum during monsoon season. Out of 119 fish species 19 Endangered, 44 vulnerable species, 17 low risks near threatened and 4 low risks least concern fishes were recorded.