Browsing by Author "Rahman, Md Naimur"

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Assessment of riverbank erosion and its prediction using geospatial and machine learning techniques
(Scopus, 2024) Rahman, Md Naimur; Saleheen, Md Mushfiqus; Fadili, Hamza EL; Sarker, Md Nazirul Islam
The Jamuna River is of significant importance in Bangladesh, playing essential roles in irrigation, fishing, transportation, and as a source of drinking water. This chapter evaluates the erosion of the Jamuna River and its potential future changes within the Ulipur Upazila, Kurigram, Bangladesh. The research employs supervised and unsupervised classification methods to extract patterns of erosion and accretion. Furthermore, to project future erosion trends, an artificial neural network model is utilized. Key findings of the study reveal a rapid increase in riverbank erosion over the past two decades. Specifically, the area affected by erosion expanded to cover 3101 ha between 2003 and 2013, and this trend continued, encompassing 4232 ha from 2013 to 2022. Despite this, there is a notable overall reduction in erosion of 3820 ha during the entire period from 2003 to 2022, compared to the changes in each previous decade. Likewise, the prediction outcomes suggest a substantial decline in both erosion and accretion. Notably, by the year 2042, erosion is projected to affect a significantly smaller area of 132 ha. Hydrometeorological and anthropogenic factors could play a pivotal role in reducing the vulnerability to erosion and accretion in the area.
Experience of farmers using mobile phone for farming information flow in Boro rice production: A case of Eastern Gangetic Plain
(2024-11-15) Ahmad, Babor; Sarkar, Md Abdur Rouf; Khano, Fahima; Lucky, Rozina Yeasmin; Sarker, Mou Rani; Rabbani, Md Golam; Ray, Shraboni Rani Rani; Rahman, Md Naimur; Sarker, Md Nazirul Islam
Mobile phones are widely used for personal communication, but their use for agricultural purposes is scarce in the Eastern Gangetic Plain. Given Bangladesh's heavy reliance on rice production, particularly dry season, the study addresses the gap in the literature by investigating farmers' perceptions and examining the factors that influence mobile phone usage and its impact on Boro rice production. The research entailed questionnaire surveys with 150 farmers from highly Boro-intensive regions. A perception index was used to gauge mobile phone acceptance, and Ordinary Least Square (OLS) and logit models were employed to analyze the factors affecting mobile phone usage and their influence on production levels. The perception index highlights various benefits, including easy access to farming and market information, prompt responses from extension officers, utilization of mobile apps for disease detection, and participation in online training and seminars. The logit model underscores the significance of educational status, credit access, household income, and extension services on the informative use of mobile phones among Boro rice farmers. The OLS findings showed that the informative use of mobile phones significantly increases Boro rice production by 1.6–4.5%, indicating that farmers with better access to farming information achieve higher production than non-users. Factors such as selling price, rainfall, credit availability, cultivable land, and farming experience significantly influenced Boro rice production. Overall, the study is rooted in the growing significance of mobile technology for disseminating crucial agricultural information. It seeks to thoroughly investigate its potential impact on Boro rice production, contributing to well-informed policy interventions and promoting sustainable agricultural development in the Eastern Gangetic Plain.
Synthesis of eco-friendly alkali-activated materials based on incineration by-products and cigarette filters: A Novel Approach to Address Cigarette Pollution
(Scopus, 2024-12-23) Fadili, Hamza El; Ali, Mohammed Ben; Moussadik, Azzedine; Mahi, Mohammed El; Rahman, Md Naimur; Lotf, El Mostapha
Using waste as a raw material for the synthesis of construction materials is gaining increasing attention due to the declining availability of natural resources. This research seeks to assess the impact of using cellulose acetate microfibers (CAMs) derived from discarded cigarettes as a reinforcement for alkali-activated materials (AAMs). In this context, seven blends were elaborated with the addition of various percentages of CAMs (0%, 0.2%, 0.4%, 0.6%, 0.8%, 1%, and 1.5%) per dry mass of fly ash, and using an alkaline solution composed of Na2SiO3 and 10 M NaOH solution. Then the physico-mechanical, thermal, and environmental properties of these composites were evaluated. The experimental results indicated that the addition of CAMs led to lighter composites, which decreased compressive strength, P-wave velocity, and density, while slightly increasing flexural strength, porosity, and water absorption. Moreover, a slight enhancement in thermal insulation capacity was observed (up to ∼9.28%). The microstructural analyses, encompassing XRD, FT-IR, and SEM/EDX examinations, revealed the formation of geopolymeric gels N-A-S-H and C-A-S-H in all specimens. The Toxicity Characteristic Leaching Procedure indicated that the released contaminants were within the regulatory limits, as well as the binder exhibited a remarkable decrease in carbon dioxide emissions and energy demand by 77.23% and 57.92% in comparison to cement. Thus, the prepared materials are viewed as a more environmentally responsible choice for reducing greenhouse gas emissions while avoiding potential toxicity issues