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Debasish Guha Thakurata,Arijita Paul,Krishna Chandra Das,Siddhartha Sankar Dhar 대한환경공학회 2021 Environmental Engineering Research Vol.26 No.4
Lead is the most globally bountiful harmful substantial component in nature. Its utilization can be followed to verifiable occasions. The current work archives the combination, portrayal, and utilization of bentonite/chitosan/NiFe₂O₄ ternary novel nanocomposite. Nanostructured nickel ferrite was joined with chitosan and bentonite to frame a novel ternary nanocomposite. The nanocomposite was portrayed by FT-IR, powder XRD, VSM, and TEM investigation. All the logical outcomes affirm the fruitful arrangement of ternary composite. The as-blended nanomaterial was applied as nanoadsorbent for the evacuation of lead (II) from water. The ideal composite portion was 50 ㎎/100 mL was seen as profoundly powerful for the evacuation of 82% Pb (II) particles from 200 ppm watery arrangement. This ferromagnetic, minimal effort, the eco-accommodating nanocomposite may end up being helpful for the expulsion of lead from watery arrangement at the mechanical level.
Arati Paul,Bhuvanesh Verma,Debasish Chakraborty 대한공간정보학회 2020 Spatial Information Research Vol.28 No.4
Annual electric power consumption (EPC) measures the electrification rate of a region. In the present study, annual composites of temporal defense meteorological satellite program/operational line-scan system night time light (NTL) imagery is used as a proxy measure for estimating electrification of India. A regression model is obtained using temporal NTL and EPC data of the region for measuring EPC from NTL data. The model is validated by using NTL data of India aquired during 2013 and is observed to be 99% accurate in measuring EPC from NTL data. The NTL data is also used to estimate population of the region and are found to be positively correlated with each other. The present study supports using the NTL data as a proxy measure of human wellbeing.
Sakib Khondokar Nazmus,Haydar Md. Abu,Khalil Md. Ibrahim,Ali Md. Idris,Paul Debasish,Alam Md. Shah 한국물리학회 2020 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.77 No.3
Near-surface disposal is anticipated to be the preferred option for the disposal of low and intermediate levels of radioactive waste in Bangladesh. A geographic information system (GIS) and a multi-criteria analysis were used for screening all of Bangladesh to identify potential areas to establish a near-surface disposal facility (NSDF). Five main data criteria, namely geology, hydrology, climatology, pedology and socio-economy, were used in the analysis and were further sub-divided into 14 sub-criteria. Layers of these sub-criteria graded on a scale of 0-5 were used as raw data for the analysis, where 0, 1, 2, 3, 4 and 5 indicate excluded area, completely unsuitable, unsuitable, moderately suitable, suitable and most suitable, respectively. Finally, a suitability map was generated using the analytic hierarchy process and GIS software, which indicated about 1.78% (2621.88 km2) of the total area to be most suitable for the construction of a NSDF in Bangladesh.
The status of NORMs in natural environment adjacent to the Rooppur nuclear power plant of Bangladesh
Md Abu Haydar,Md Mehade Hasan,Imrose Jahan,Kanij Fatema,Md Idris Ali,Debasish Paul,Mayeen Uddin Khandaker 한국원자력학회 2021 Nuclear Engineering and Technology Vol.53 No.12
The Rooppur Nuclear Power Plant (RNPP), the first nuclear power plant in Bangladesh with a capacity of2.4 GWe, is under construction on the bank of the river Padma, at Rooppur in Bangladesh. Measurementof background radioactivity in the natural environment adjacent to RNPP finds great importance forfuture perspectives. Soil and sediment samples collected from upstream and downstream positions ofthe Padma River (adjacent to RNPP) were collected and analyzed by HPGe gamma-ray spectrometry forprimordial radionuclides. The average activity concentrations (in Bqkg 1) of 226Ra, 232Th and 40K radionuclides in soil samples were found to be 44.99 ± 3.89, 66.28 ± 6.55 and 553 ± 82.17 respectively. Respective values in sediment samples were found to be 44.59 ± 4.58, 67.64 ± 7.93, 782 ± 108. Relevantradiation hazard indices and dosimetric parameters were calculated and compared with the worldaverage data recommended by US-EPA. Analytical results show non-negligible radiation hazards to thesurrounding populace. Measured data will be useful to monitor any change of background radioactivityin the surrounding environment of RNPP following its operation for the generation of nuclear energ