Preparation and characterization of self-cured geopolymer binder using metakaolin precursor
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H. M. Khater, S. A. ElMoied
This study presents an advancement in “Self-cured geopolymer” technology, aiming to enable ambient-temperature curing. The experimental work systematically investigated two primary strategies: the incorporation of …
Life cycle and techno-economic assessment of a solar-biogas hybrid dryer for banana drying
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Oscar Shigella, Aldé Belgard Tchicaya Loemba, John Yawe
This study evaluates the environmental impact and economic viability of a solar-biogas hybrid dryer using life cycle assessment (LCA) and techno-economic analysis. The LCA, in …
IoT-driven smart irrigation system to improve water use efficiency
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Z. S. H. Sayed Mohamed, M. K. Afify, Badr M.M.
The agriculture sector is the cornerstone of many global economic entities, plays a central role in highly contributing to ensure food security and the gross …
Financial barriers and inequalities in healthcare access across East Africa: evidence from demographic and health surveys
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Omer Adam Farih, Saeed Hassan Mohamed, Asma Mahamoud Abdillahi
Background: Financial barriers are a critical impediment to achieving Universal Health Coverage (UHC), particularly in sub-Saharan Africa. In East Africa, high out-of-pocket health expenditures persist, …
Stability indicating green HPLC method for Imeglimin hydrochloride determination in pharmaceutical tablets with comprehensive assessment
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Fotouh R. Mansour, Samar H. Elagamy, Almoataz Bellah B. Elbastawissy
Abstract In this study, an ion pair RP-HPLC method has been developed for separation and quantification of imeglimin hydrochloride (IMG) in the existence of its …
Green synthesis of 2D azine-linked covalent organic framework with antibacterial activity correlated by molecular docking study and computational calculations
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Eman Abdelnasser, Asmaa M. Fahim, Daniel T. Oyekunle
A two-dimensional covalent organic framework (2D-COF), COFTHB, was synthesized via a Schiff base condensation of terephthaldehyde and 1,4-hydrazonmethylbenzene under green, room-temperature conditions. COFTHB exhibits a …
Energy, exergy, and environmental performance of a solar dryer for orange slices across tray levels and thicknesses
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Abdallah Elshawadfy Elwakeel, Awad Ali Tayoush Oraiath, Wajdi Aissa Mohammed Abdurraziq
This research introduces the development of an automated forced and natural solar dryer (AFNSD) equipped with a photovoltaic-powered IoT technology, temperature-responsive control system that seamlessly …
Eco-friendly biosynthesis of manganese oxide-silver bimetallic nanoparticles using Cucumis melo peel extract: characterization, antioxidant, antimicrobial, and antiviral activities
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Ebrahim Saied, Nosiba S. Basher, Bahaa Mohammed Badr
Abstract The employment of plant extracts for green production of bimetallic nanoparticles (BNPs) has gotten significant consideration because of its cheap, ecological, single–step, and easily …
Integrated GIS-machine learning approach to irrigation water quality assessment in coastal aquifers
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Loubna Nefla, Amira Bergal, Warda BOUMARAF
Groundwater has become a vital and increasingly relied-upon resource, especially in semi-arid and arid regions. Thus, to ensure groundwater complies with standards before use, continuous …
Synergistic impact of mesoporous Zn/Al-LDH nanorods for developing dielectric and thermal properties of epoxy as insulation in GIS/GIL
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M. Ramadan, Mahmoud Ezzat, Mousa. A. Abd-Allah
Abstract Gas-insulated switchgear (GIS) and transmission lines (GIL) depend on epoxy spacers to ensure electrical reliability under high-voltage stress. Yet, the limited dielectric strength and …
Neuroprotective potential of eugenol against acrylamide-induced brain toxicity by regulating Nrf2/NQO1/HO-1 and NLRP3/NF-κB/IL-1β signaling cascades
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Sara M. Baraka, Yosra Assem Hussien, Omar A. Ahmed‐Farid
Acrylamide (ACR), a common environmental and dietary neurotoxicant, exerts profound deleterious effects on the central nervous system by triggering oxidative stress, neuroinflammation, apoptosis, and motor …
Biocontrol of Aspergillus flavus in stored wheat using Bacillus sp. B3 and Bacillus sp. Mn1 with antagonistic capacity through volatile compounds production
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Hussien AboDalam, Mona Mahmoud Maher Ragab, Marwa Abd-Elateef Zayton
Abstract Background Contamination of stored wheat grains by Aspergillus flavus poses serious food safety risks due to aflatoxin production. This study aimed to identify and …
Meteorological Drought Trend Analysis and Forecasting Using a Hybrid SG-CEEMDAN-ARIMA-LSTM Model Based on SPI from Rain Gauge Data
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Siphamandla Sibiya, Shaun Ramroop, Sileshi Fanta Melesse
Meteorological drought presents considerable challenges to water supplies, agriculture, and socio-economic stability, especially in areas heavily reliant on precipitation. The Standardized Precipitation Index (SPI) is …
Sustainable removal of azo dyes from real effluents using a biomass-derived composite
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F. M. Mohamed, A. M. Alfalos, M. F. Alrakshy
In this study, the composite of Seaweed as biomass and Anthracite @ Chitosan (MS-An@Cs) was successfully prepared for the removal of methyl orange as one …
Parametric study and fuel quality assessment of biofuel from hydrothermal liquefaction of microalgae grown in municipal wastewater
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Salwa Kamal Mohamed Hassan, N. K. Attia, G. I. El Diwani
Hydrothermal liquefaction (HTL) of algal biomass is a promising approach for renewable biofuel production. The actual study investigates the effects of reaction temperature (225-325 °C), …
Impacts of climate change on food systems in Africa: a systematic review
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McDonald Chabwera, Millias Mchimwa, Urunji Mezuwa
Background African countries experience weak food systems due to threats posed by climate change in various parts of the continent. The adverse effects from climate …
Adsorptive performance of SPE via modified POM biochar for Pb(II) and tetracycline with concurrent antimicrobial action
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Mohamed S. Abdelwahab, M Berekaa Mahmoud, Rasha A. Metwally
This study developed a novel, eco-friendly solid-phase extraction (SPE) sorbent, modified pomegranate biochar (POM), from the agricultural waste of pomegranate peel for the efficient removal …
Optimization of proton exchange membrane fuel cell design parameters using Tianji’s horse racing optimization
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Yacine Bouali, Khoukha Imarazene, Basem Alamri
Accurate parameter estimation is essential for reliable modeling and performance evaluation of Proton Exchange Membrane Fuel Cells (PEMFCs). This paper introduces the application of Tianji's …
Modeling, environmental and economic analysis of drying of orange slice in an automatic indirect mixed mode solar dryer
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Abdallah Elshawadfy Elwakeel, Awad Ali Tayoush Oraiath, Wajdi Aissa Mohammed Abdurraziq
Abstract This study presents an indirect mixed-mode solar dryer (IMMSD) integrated with a photovoltaic system with an automatic, temperature-responsive control system that automatically switches between …
Environmental and energetic exergetic sustainability of stevia leaf drying in a PVT indirect solar dryer with variable airflow and tray levels
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Abdallah Elshawadfy Elwakeel, Awad Ali Tayoush Oraiath, Abubakr Abdelwahab Tantawy
Abstract During the current study, Stevia rebaudiana leaves were dried using a photovoltaic thermal–indirect solar dryer (PVT-ISD), and the influence of tray position inside the …