Results 31 to 40 of about 3,567 (243)

Recycling of bypass cement kiln dust in the production of eco-friendly roof tiles

Materials Research Express, 2023
Most of the research of building materials companies at present focuses on recycling waste to minimize the cost of their products and for the safe disposal of these wastes.
K A M ElNaggar, M M Ahmed, W Abbas, E M Abdel Hamid   +3 more
doaj   +1 more source

COVID-19 deterministic and stochastic modelling with optimized daily vaccinations in Saudi Arabia

Results in Physics, 2021
In this paper, we investigate the stochastic nature of the COVID-19 temporal dynamics by generating a fractional-order dynamic model and a fractional-order-stochastic model.
Othman A.M. Omar, Yousef Alnafisah, Reda A. Elbarkouky, Hamdy M. Ahmed   +3 more
doaj   +1 more source

فاعلية برنامج مقترح قائم على استراتيجية الرحلات المعرفية عبر الويب في تنمية مهارات الطلاب لاستيفاء معايير اعتماد برنامج إعداد معلم الرياضيات بکليات التربية [PDF]

مجلة تربويات الرياضيات, 2017
هدف البحث الحالي إلى استقصاء فاعلية برنامج مقترح قائم على استراتيجية الرحلات المعرفية عبر الويب في تنمية مهارات الطلاب لاستيفاء معايير اعتماد برنامج إعداد معلم الرياضيات بکليات التربية، ومن ثم تم الاطلاع على الأدبيات التربوية والدراسات السابقة المرتبطة ...
محمد محمود حسن رسلان
doaj   +1 more source

Pathways to Carbon Neutrality: The Role of Environmental Governance, Environmental Technology, Renewable Energy Transition, and Economic Policy Uncertainty in Africa

Business Strategy and the Environment, EarlyView.
ABSTRACT As climate change and environmental deterioration continue to escalate due to substantial CO2 emissions, nations worldwide are implementing approaches to alleviate CO2 emissions and accomplish carbon neutrality (CNE) goals. The current study examined CNE objectives for five selected nations in Africa, spanning from 1990 to 2022.
John Wiredu, Emmanuel Nketiah, Simplice A. Asongu, Kingsley Takyi Agyei, Zijie Fan   +4 more
wiley   +1 more source

Mathematical Model of a Thermoelastic Micro-elongated Plate Influenced by Initial Stress and an Upper Load from a Piezoelectric Layer according to Dual-phase-lag Model [PDF]

Journal of Applied and Computational Mechanics
The main goal of this work is to investigate how the initial stress affects a thermoelastic micro-elongated layer under a layer of piezoelectric loading using the theory of Lord-Shulman (L-S) with relaxation time and the model of dual-phase-lag (DPL ...
Mohamed Othman, Ebtesam Eraki, Mohamed Ismail   +2 more
doaj   +1 more source

Whose Sustainability Counts? Board Governance, ESG Ratings, and Sustainable Development Goals: Evidence on the ESG–SDG Wedge

Business Strategy and the Environment, EarlyView.
ABSTRACT Institutional investors increasingly rely on ESG ratings to evaluate financially material sustainability risks, while governments promote corporate alignment with the United Nations Sustainable Development Goals (SDGs). Because these frameworks differ substantially in capital market salience and monitoring intensity, board oversight may not ...
Mohamed Hegazy, Diego Prior, Mahmoud Zarea   +2 more
wiley   +1 more source

Key Challenges for Commercializing Perovskite–Silicon Tandem Solar Cells

Carbon Energy, EarlyView.
This review discusses the scientific and technological challenges in advancing perovskite–silicon tandem solar cells (PSTSCs) from lab‐scale to commercial viability, focusing on long‐term stability, scalability, and economic feasibility. Key issues include intrinsic and extrinsic degradation factors, installation conditions, environmental impacts, and ...
Bilal Mehmood, Yuanyuan Qin, Abdul Sattar, Rabeea Eman, Faheem Abbas, Shan Wu, Yipeng Xu, Xu Zheng, Jiangying Lu, Wei Jiang, Jiankai Liu, Shudi Lu, Shizhong Yue, Zhijie Wang, Kong Liu, Xiaopeng Zheng, Shengchun Qu   +16 more
wiley   +1 more source

Curating Structural Sense of Belonging Among Minoritized Students: A Case Study of the Performing Arts

New Directions for Higher Education, EarlyView.
ABSTRACT Understanding collegiate norms and practices that promote sense of belonging among students who have traditionally been raced, gendered, stigmatized, and excluded as the ‘other’ in predominantly white institutions (PWI) is of paramount importance today as these efforts face increasingly antagonistic legislation, state policies, and ...
Nkenji K. Clarke, Rola Tarek Mohamed, Alicia C. Dowd, Sharmistha Barat   +3 more
wiley   +1 more source

Nexus of Urbanization, Land Degradation, and Agricultural Sustainability: A Global Bibliometric Review

Land Degradation &Development, EarlyView.
ABSTRACT Rapid urban expansion has become a global concern that increasingly encroaches on agricultural land and threatens food security, environmental sustainability, and rural livelihoods. This study offers a comprehensive bibliometric review of global research at the crossroads of urbanization, agricultural land degradation, and food security.
Shahab E. Saqib, Supawan Visetnoi, Raza Ullah   +2 more
wiley   +1 more source

Unveiling New Perspectives on the Hirota–Maccari System With Multiplicative White Noise

Mathematical Methods in the Applied Sciences, EarlyView.
ABSTRACT In this study, we delve into the stochastic Hirota–Maccari system, which is subjected to multiplicative noise according to the Itô sense. The stochastic Hirota–Maccari system is significant for its ability to accurately model how stochastic affects nonlinear wave propagation, providing valuable insights into complex systems like fluid dynamics
Mohamed E. M. Alngar, Khaled A. Gepreel, Reham M. A. Shohib, Yakup Yildirim   +3 more
wiley   +1 more source