Deltin 7

Md. Ayub Ali, Dulal Chandra Roy and Papia Sultana; “Some Aspects of Sampling for a Finite Population in Big Data Analysis”, at IJSS in Vol. 22 (1), March 2022, ISBN: 978-984-34-6444-6 () Organized by Department of Statistics, Rajshahi Deltin 7 Aviator গেম টাকা ইনকাম, Rajshahi-6205, Bangladesh

Journal: Chemical Record, Publisher:Wiley   Rankin: Q1,   IF= 7.5

Abstract: Third-generation solar cells are understood to be the pathway to overcoming the issues and drawbacks of the existing solar cell technologies. Since the introduction of graphene in solar cells, it has been providing attractive properties for the next generation of solar cells. Currently, there are more theoretical predictions rather than practical recognitions in third-generation solar cells. Some of the potential of graphene has been explored in organic photovoltaics (OPVs) and dye-sensitized solar cells (DSSCs), but it has yet to be fully comprehended in the recent third-generation inorganic–organic hybrid perovskite solar cells. In this review, the diverse role of graphene in third-generation OPVs and DSSCs will be deliberated to provide an insight on the prospects and challenges of graphene in inorganic–organic hybrid perovskite solar cells.

Md. Ayub Ali, Samiul Islam, Md. Maeen Molla, Dulal Chandra Roy and Papia Sultana. "Analyzing Level of Psychological Stress among Young Adults in Bangladesh Due to COVID-19 Pandemic." Barishal Deltin 7 Aviator গেম টাকা ইনকাম Journal of Science and Engineering, Vol. 8: 65-82 (December 2023)

Md. Ayub Ali, Faija Farjana, Dulal Chandra Roy and Papia Sultana. "Big Data Analysis Using Re-sampling Technique in a Finite Population Inference." Barishal Deltin 7 Aviator গেম টাকা ইনকাম Journal of Science and Engineering, Vol. 8: 47-64 (December 2023)

Sultana, Sunjina, Md Maeen Molla, Pampa Das, Samiul Islam, Md Rashedul Islam, and Md Ayub Ali. "Analyzing the overall consequences of COVID-19 on Barishal Deltin 7 Aviator গেম টাকা ইনকাম Students." Barishal Deltin 7 Aviator গেম টাকা ইনকাম Journal of Science and Engineering, Vol. 9: 185-194 (June 2024)

Md Ayub Ali, Md Maeen Molla, Samiul Islam, Faija Farjana, and Dulal Chandra Roy. "Machine Learning Algorithms for Identifying Psychological Implications among Jobseekers in Bangladesh Due to COVID-19 Pandemic." Barishal Deltin 7 Aviator গেম টাকা ইনকাম Journal of Science and Engineering, Vol. 9: 167-183 (June 2024)

Molla, Md Maeen, Md Sifat Hossain, Md Ayub Ali, Md Raqibul Islam, Mst Papia Sultana, and Dulal Chandra Roy. "Exploring the achievements and forecasting of SDG 3 using machine learning algorithms: Bangladesh perspective." PloS one 20, no. 3 (2025): e0314466.

Islam, S., Mynuddin, M., Sultana, S., Mondal, S. K., Hossain, M. A., Paul, G. K., ... & Ali, M. A. (2025). A Performance Comparison of Machine Learning Models for Robotic Navigation Using Imbalanced and SMOTE-Enhanced Data. GJMS, 2(1), 10-37.

Journal: ECS Transactions, Publisher: Electrochemical Society, IF= 0.7 

Abstract:In this work, we present results of periodic density functional theory study of the adsorption of carbon monoxide (CO) and hydroxyl (OH) on Pt2Ru3 alloy surface for different conformation of Pt and Ru. These results were compared with CO and OH adsorption on pure Pt and Ru surfaces. We find that the mixing of Pt by Ru leads to stronger bond of CO and OH to the Ru sites, whereas weaker bond notice of CO and OH to the Pt sites. We also analyze the effect of surface, sub surface and neighboring atoms effect on the adsorption of CO and OH on the Pt2Ru3 alloy surface. We notice that surface mixture with Pt and Ru atoms is more favourable adsorption sites for CO and OH than that of the homogeneous alloy surfaces.

Journal: ECS Transactions, Publisher: Electrochemical Society, IF: 0.7

Abstract: It is well known that Pt-Ru alloy exhibits a promising catalytic activity for fuel cells. In this work we present density functional theory (DFT) study of the randomly mixed Pt-Ru alloys and discussed its stability based on the relative position of Pt and Ru atoms. The structures are modelled as five layer slabs because the ratio of surface atoms comparable with that for clusters about 3 nm sizes. The top surface fully covered by the Pt atom exhibits highest stability compared with other randomly mixed Pt-Ru alloys. We also discuss here the probability of Pt-Ru bond ratio (MPt-Ru/MPt-Ru+MPt-Pt) in the Pt-Ru alloy decreases with increasing the surface atom ratio (surface atom/Total number of atom), which is compared with available X-ray absorption fine structure data.