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- 검색키워드
- 저자 : Moumita Mondal (검색결과 2 건)
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Mahasweta Chatterjee,Moumita Mondal,Tanaya Sukul,Koushik Ghosh,Swapan Kumar Pradhan 한국공업화학회 2023 Journal of Industrial and Engineering Chemistry Vol.127 No.-
Highly efficient and stable WO3-embedded hierarchical BiOCl/g-C3N4 (WBG) composites have been synthesizedby a two-step solvothermal route. Phase identification and other structural and microstructuralparameters are evaluated by analyzing the XRD pattern of respective composites employing the Rietveldrefinement technique. HRTEM images reveal that BiOCl and WO3 nanoparticles of size 20–25 and 4–6 nmare embedded uniformly on the surface of g-C3N4 nanosheets respectively. The nanocomposites offeredoutstanding photocatalytic performance by showing degradation of colored dyes, colorless pollutants,tetracycline antibiotics and reduction of Cr (VI). About 95% of RhB dyes within 8 min, 91% phenol within150 min, 85% tetracycline (TC) within a record 20 min have been degraded, and 98% Cr (VI) reducedwithin 10 min from wastewater under sunlight irradiation in the presence of the WBG3 nanocomposite. In addition, the WBG3 nanocomposite shows a significant photocatalytic H2 production rate of 2 mmol. h1 g1. Apart from that, the growth of gram-positive and gram-negative pathogenic bacteria is notablyinhibited by WBG nanocomposite, comparable to the same concentration of the pure drug. This work providesa strong framework to fabricate future-generation photocatalysts for the remediation of organicpollutants and heavy metals and for producing solar light-driven hydrogen evolution.
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An Efficient Compression Algorithm for Forthcoming New Species
Subhankar Roy,Sudip Mondal,Sunirmal Khatua,Moumita Biswas 보안공학연구지원센터 2015 International Journal of Hybrid Information Techno Vol.8 No.11
Genomic repositories gradually increase individual and reference sequences, which shares long identical and near-identical strings of nucleotides. In this paper a lossless DNA data compression technique called Optimized Base Repeat Length DNA Compression (OBRLDNAComp) has been proposed, based upon redundancy of DNA sequences. For easy storage, retrieval time reducing and to find similarity within and between sequences compression is mandatory. OBRLDNAComp searches long identical and near-identical strings of nucleotides which are overlooked by other DNA specific compression algorithms. This technique is an optimal solution of longest possible exact repeat benefits towards compression ratio. It scans a sequence horizontally from left to right to find statistic of repeats then follow substitution technique to compress those repeats. The algorithm is straightforward and does not need any external reference file; it scans the individual file for compression and decompression. The achieved compression ratio 1.673 bpb outperforms many non-reference based compression methods.
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