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440 results on '"Paul, Subrata"'

104. GATA2 at 10: Emergence of Genotype-Phenotye correlations

Author

Hsu, Amy, primary, Paul, Subrata, additional, Johnson, Philip, additional, Palmer, Cindy, additional, Zerbe, Christa, additional, Daub, Janine, additional, Davis, Joie, additional, Hickstein, Dennins, additional, Calvo, Katherine, additional, and Holland, Steven, additional

Published
2023
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108. A New Lissajous-Based Technique for Islanding Detection in Microgrid

Author

Pavankumar, Yadala, Debnath, Sudipta, and Paul, Subrata

Abstract

This study presents a novel technique for islanding detection in microgrid based on Lissajous figure of voltage and current signals. The Lissajous figure reveals distinct pattern during islanding which can segregate the islanding event from other non-islanding disturbance events such as switching transients and faults. Lissajous figures have been considered as images to capture the characterizing patterns in their shapes. The area of the Lissajous figure has been considered for successive intervals to develop an index mathematically and an appropriate adaptive threshold value of index has been formulated to detect the islanding phenomenon. The proposed technique does not require the information about the network configuration. The efficacy of the proposed technique has been established through fast islanding detection with load inside the non-detection zone (NDZ) and under the condition of complete match between the distributed sources and the load. To establish the efficacy of the proposed technique, comparative analysis has been carried out with other recent islanding detection techniques.

Published
2024
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127. Affinity Classification Problem by Stochastic Cellular Automata.

Author

Bhattacharjee, Kamalika, Paul, Subrata, and Das, Sukanta

Subjects
PROBABILISTIC automata, CELLULAR automata, CLASSIFICATION, PROBLEM solving
Abstract

This paper introduces the affinity classification problem, which is a generalization of the density classification problem. To solve this problem, we introduce temporally stochastic cellular automata where two rules are stochastically applied in each step on all cells of the automata. Our model is defined on a two-dimensional grid having affection capability. We show that this model can be used in several applications, such as modeling self-healing systems. [ABSTRACT FROM AUTHOR]

Published
2023
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128. Microgrid fault detection technique using phase change of Positive sequence current.

Author

Pavankumar, Yadala, Debnath, Sudipta, and Paul, Subrata

Subjects
MICROGRIDS, ELECTRIC fault location, FAULT location (Engineering), LOW voltage systems, ELECTRIC inverters
Abstract

This article presents a new algorithm for fault detection in grid-tied microgrids with inverter-interfaced distributed generators (DGs). To support the Grid codes, the DGs require a low voltage ride through (LVRT) capability. The control strategy used in the DGs results in large changes in the fault characteristics of the microgrid. Hence, it is required to study the fault characteristics of the DGs in a microgrid under various operating conditions. The study presents fault detection for microgrids with PQ-controlled DGs having LVRT capability under different DG voltage and different fault conditions (high impedance and low impedance). The fault location has been identified using the phase change in the positive sequence current at specific DG voltages. The reliability of the proposed scheme has been validated under diverse fault conditions through extensive simulations in the Matlab/ Simulink environment, and the comparison with other fault detection techniques proves the efficacy of the proposed scheme for fault detection in microgrids. [ABSTRACT FROM AUTHOR]

Published
2023
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129. Appraising service-based centrality and rural settlement hierarchy using AHP: case study of Dibrugarh district, Assam, India.

Author

Banik, Gopal Chandra, Paul, Subrata Kumar, and Roy, Sudip Kumar

Subjects
ANALYTIC hierarchy process, CENTRALITY, REGIONAL development
Abstract

This article presents a study of service-based centrality and hierarchical distribution of settlements in a rural district of Assam state in India, namely Dibrugarh. A compound Centrality Index has been constructed using Analytical Hierarchy Process (AHP). The centrality of a settlement (for this study, Gram Panchayat-rural administrative unit) has been computed using the index, which considers the relative importance of the available services and facilities (within the settlement) that the rural people regularly access. AHP, a systematic and reliable tool, has been used to measure the relative importance of the available services and facilities. Ward's method has been implemented for determining the hierarchy of a settlement based on its computed centrality. The results indicate the centrality of the rural settlements varies from moderate to poor, and the spatial distribution of the hierarchy of settlements is unorganised. The study provides an in-depth understanding of the regional development status in Dibrugarh. Policy implications are suggested, and scopes for further studies are identified. [ABSTRACT FROM AUTHOR]

Published
2023
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145. Manipulating Edge Current in Hexagonal Boron Nitride via Doping and Friction

Author

Das, Bikash, primary, Maity, Sujan, additional, Paul, Subrata, additional, Dolui, Kapildeb, additional, Paramanik, Subham, additional, Naskar, Sanjib, additional, Mohanty, Smruti Ranjan, additional, Chakraborty, Supriya, additional, Ghosh, Anudeepa, additional, Palit, Mainak, additional, Watanabe, Kenji, additional, Taniguchi, Takashi, additional, Menon, Krishnakumar S. R., additional, and Datta, Subhadeep, additional

Published
2021
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