Earth science

Physics Maths Engineering

Climatic and Anthropogenic Influences on Long-Term Discharge and Sediment Load Changes in the Second-Largest Peninsular Indian Catchment

Harshada Jadhav,

Harshada Jadhav

Institution: Department of Geography, Savitribai Phule Pune University, Pune 411007, India

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Avinash M. Kandekar,

Avinash M. Kandekar

Institution: Department of Geography, Savitribai Phule Pune University, Pune 411007, India

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Sumit Das

Sumit Das

Institution: Institute of Hydrogeology, Engineering Geology and Applied Geophysics, Charles University, 12800 Prague, Czech Republic

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Abstract

This study examines the impacts of climatic and anthropogenic activities on the Krishna basin, the second-largest river system in Peninsular India. Over five decades, notable declines in water discharge and sediment load were observed, with sediment reductions exceeding 76% in some areas. The analysis used Mann-Kendall and P...
2 days ago

Physics Maths Engineering

Environmental Impact of Plastic Recycling in Terms of Energy Consumption: A Comparison of Japan’s Mechanical and Chemical Recycling Technologies

Chaoxia Shan,

Chaoxia Shan

Institution: Graduate School of Environment and Energy Engineering, Waseda University, Tokyo 1620041, Japan

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Andante Hadi Pandyaswargo,

Andante Hadi Pandyaswargo

Institution: Environmental Research Institute, Waseda University, Tokyo 1620041, Japan

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Hiroshi Onoda

Hiroshi Onoda

Institution: Graduate School of Environment and Energy Engineering, Waseda University, Tokyo 1620041, Japan

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Abstract

This study evaluates the environmental impact of plastic recycling in Japan by comparing mechanical recycling with two chemical recycling technologies: coke oven and gasification. The analysis focuses on energy consumption and environmental loads, revealing that mechanical recycling results in a 17% share of global warming p...
2 days ago

Physics Maths Engineering

Dynamic Modeling and Control of BDFRG under Unbalanced Grid Conditions

Taufik Taluo,

Taufik Taluo

Institution: School of Electrical Engineering, University of Belgrade, 11000 Belgrade, Serbia

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Leposava Ristić,

Leposava Ristić

Institution: School of Electrical Engineering, University of Belgrade, 11000 Belgrade, Serbia

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Milutin Jovanović

Milutin Jovanović

Institution: Department: Mathematics, Physics and Electrical Engineering, Newcastle City Campus, Northumbria University at Newcastle, Newcastle-upon-Tyne NE1 8ST, UK

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Abstract

This study investigates the dynamic modeling and control of Brushless Doubly-Fed Reluctance Generators (BDFRG) under unbalanced grid conditions. BDFRGs are promising alternatives to traditional generators in wind power applications due to their cost-effectiveness, competitive performance, and high reliability. The research p...
2 days ago

Physics Maths Engineering

Artificial Intelligence Techniques for Sustainable Reconfigurable Manufacturing Systems: An AI-Powered Decision-Making Application Using Large Language Models

Hamed Gholami

Hamed Gholami

Institution: Mines Saint-Etienne, Univ. Clermont Auvergne, INP Clermont Auvergne, CNRS, UMR 6158 LIMOS, F-42023 Saint-Etienne, France

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Abstract

Artificial intelligence (AI) offers a promising avenue for developing sustainable reconfigurable manufacturing systems. Although there has been significant progress in these research areas, there seem to be no studies devoted to exploring and evaluating AI techniques for such systems. To address this gap, the current study a...
2 days ago

Physics Maths Engineering

Carbon emissions and low-carbon innovation in firms

Jiao Ma

Jiao Ma

Institution:

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Most of the previous studies of environmental innovation focus on the impact of environmental innovation on carbon emissions. This study rarely examines the internal causes and mechanisms of influence of low-carbon innovation. This study focuses on the effect of carbon emissions on low-carbon innovation in firms. Using a panel data set of Chinese A-share firms, this study finds that the in...
1 week ago

Physics Maths Engineering

Adaptive Path Planning for Subsurface Plume Tracing with an Autonomous Underwater Vehicle

Zhiliang Wu,

Zhiliang Wu

Institution: School of Mechanical Engineering, Tianjin University, Tianjin 300354, China

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Shuozi Wang,

Shuozi Wang

Institution: School of Mechanical Engineering, Tianjin University, Tianjin 300354, China

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Xusong Shao,

Xusong Shao

Institution: School of Mechanical Engineering, Tianjin University, Tianjin 300354, China

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Fang Liu,

Fang Liu

Institution: Yichang Research Institute of Testing Technology, Yichang 443003, China

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Zefeng Bao

Zefeng Bao

Institution: China Automotive Technology and Research Center, Tianjin 300300, China

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Key Questions

1. What challenges do autonomous underwater vehicles (AUVs) address in plume tracing?

AUVs provide autonomous, efficient, and adaptive solutions for tracing subsurface plum...
1 month ago

Physics Maths Engineering

Uranium Dissemination with Phosphate Fertilizers Globally: A Systematic Review with Focus on East Africa

Dennis A. Mwalongo,

Dennis A. Mwalongo

Institution: Tanzania Atomic Energy Commission, Directorate of Nuclear Technology and Technical Services, Arusha P.O. Box 743, Tanzania

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Nils H. Haneklaus,

Nils H. Haneklaus

Institution: Nelson Mandela African Institution of Science and Technology (NM-AIST), School for Materials, Energy, Water, Environmental Science and Engineering, Arusha P.O. Box 447, Tanzania

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Jacob B. Lisuma,

Jacob B. Lisuma

Institution: Tobacco Research Institute of Tanzania (TORITA), Tabora P.O. Box 431, Tanzania

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Nelson Mpumi,

Nelson Mpumi

Institution: Nelson Mandela African Institution of Science and Technology (NM-AIST), School for Materials, Energy, Water, Environmental Science and Engineering, Arusha P.O. Box 447, Tanzania

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Aloyce I. Amasi,

Aloyce I. Amasi

Institution: Nelson Mandela African Institution of Science and Technology (NM-AIST), School for Materials, Energy, Water, Environmental Science and Engineering, Arusha P.O. Box 447, Tanzania

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Jerome M. Mwimanzi,

Jerome M. Mwimanzi

Institution: Tanzania Atomic Energy Commission, Directorate of Nuclear Technology and Technical Services, Arusha P.O. Box 743, Tanzania

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Furaha M. Chuma,

Furaha M. Chuma

Institution: Tanzania Atomic Energy Commission, Directorate of Nuclear Technology and Technical Services, Arusha P.O. Box 743, Tanzania

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Thomas T. Kivevele,

Thomas T. Kivevele

Institution: Nelson Mandela African Institution of Science and Technology (NM-AIST), School for Materials, Energy, Water, Environmental Science and Engineering, Arusha P.O. Box 447, Tanzania

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Kelvin M. Mtei

Kelvin M. Mtei

Institution: Nelson Mandela African Institution of Science and Technology (NM-AIST), School for Materials, Energy, Water, Environmental Science and Engineering, Arusha P.O. Box 447, Tanzania

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Growing concern has been expressed about uranium (U) accumulation in agricultural soils caused by the long-term application of mineral fertilizers. More than 80% of naturally occurring U transfers from phosphate rock (PR), the raw material used in mineral fertilizer production, to phosphorus (P) fertilizers. These fertilizers are then distributed on agricultural soils, where the U could ac...
1 month ago

Physics Maths Engineering

Assessment of Subseasonal-to-Seasonal (S2S) Precipitation Forecast Skill for Reservoir Operation in the Yaque Del Norte River, Dominican Republic

Norman Pelak,

Norman Pelak

Institution: Hydrologic Research Center, San Diego, CA 92127, USA

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Eylon Shamir,

Eylon Shamir

Institution: Hydrologic Research Center, San Diego, CA 92127, USA

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Theresa Modrick Hansen,

Theresa Modrick Hansen

Institution: Hydrologic Research Center, San Diego, CA 92127, USA

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Zhengyang Cheng

Zhengyang Cheng

Institution: Hydrologic Research Center, San Diego, CA 92127, USA

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Operational forecasters desire information about how their reservoir and riverine systems will evolve over monthly to seasonal timescales. Seasonal traces of hydrometeorological variables at a daily or sub-daily resolution are needed to drive hydrological models at this timescale. Operationally available models such as the Climate Forecast System (CFS) provide seasonal precipitation foreca...
1 month ago

Physics Maths Engineering

Accuracy Assessment of Surveying Strategies for the Characterization of Microtopographic Features That Influence Surface Water Flooding

Rakhee Ramachandran,

Rakhee Ramachandran

Institution: School of Water, Energy and Environment, Cranfield University, College Road, Cranfield, Bedfordshire MK43 0AL, UK

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Yadira Bajón Fernández,

Yadira Bajón Fernández

Institution: School of Water, Energy and Environment, Cranfield University, College Road, Cranfield, Bedfordshire MK43 0AL, UK

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Ian Truckell,

Ian Truckell

Institution: School of Water, Energy and Environment, Cranfield University, College Road, Cranfield, Bedfordshire MK43 0AL, UK

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Carlos Constantino,

Carlos Constantino

Institution: Atkins Limited, One St Aldates, St Aldate’s, Oxford OX1 1DE, UK

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Richard Casselden,

Richard Casselden

Institution: Atkins Limited, The Hub, 500 Park Avenue, Aztec West, Almondsbury, Bristol BS32 4RZ, UK

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Paul Leinster,

Paul Leinster

Institution: School of Water, Energy and Environment, Cranfield University, College Road, Cranfield, Bedfordshire MK43 0AL, UK

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Mónica Rivas Casado

Mónica Rivas Casado

Institution: School of Water, Energy and Environment, Cranfield University, College Road, Cranfield, Bedfordshire MK43 0AL, UK

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With the increase in rainfall intensity, population, and urbanised areas, surface water flooding (SWF) is an increasing concern impacting properties, businesses, and human lives. Previous studies have shown that microtopography significantly influences flow paths, flow direction, and velocity, impacting flood extent and depth, particularly for the shallow flow associated with urban SWF. Th...
1 month ago

Physics Maths Engineering

A Critical Assessment of the Process and Logic Behind Fish Production in Marine Recirculating Aquaculture Systems

Uwe Waller

Uwe Waller

Institution: School of Engineering, Saarland University of Applied Sciences (HTW Saar), Goebenstraße 40, 66117 Saarbrücken, Germany

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A recirculating aquaculture system (RAS) represents a forward-looking form of aquaculture. A RAS consists of fish tanks and water treatment processes in a closed loop to sustain the environmental conditions for fish production. However, the rapid industrialization of the technology is fraught with transfer problems. This review justifies a RAS process chain based on fish biology. The under...
1 month ago

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Physics Math Chemistry Computer science Engineering Biology

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