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Earth science

Physics Maths Engineering

Distribution and Metabolic Activities of Marine Microbes in Response to Natural and Anthropogenic Stressors

Gabriella Caruso,

Gabriella Caruso

Institution: Institute of Polar Sciences, National Research Council (CNR-ISP), Spianata S. Raineri 86, 98122 Messina, Italy

Email:

Kai Ziervogel

Kai Ziervogel

Institution: Ocean Process Analysis Laboratory, University of New Hampshire, Morse Hall Rm 136A, Durham, NH 03824, USA

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As a consequence of climate change and increased human pressure, aquatic ecosystems are experiencing natural and anthropogenic stressors and events such as temperature warming, acidification, biodiversity loss, and degraded water quality. To understand the response of marine ecosystems to environmental and anthropogenic pressures, integration of long-term and large-scale monitoring of marine commu...
3 months ago

Physics Maths Engineering

Novel Screen System Improvement Methodology for Flood and Diffuse Pollution Control: Demonstration via a Case Study

Miklas Scholz

Miklas Scholz

Institution: Department of Civil Engineering Science, School of Civil Engineering and the Built Environment, University of Johannesburg, Kingsway Campus, Johannesburg 2092, South Africa

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Screen systems are often neglected in practice. This can lead to local flooding, pollution of receiving watercourses, blockages of channels by debris, and safety problems for children playing. The aim of this case study is therefore to protect below-ground channels and people, prevent flooding, improve water quality, and save personnel costs through a new screen system maintenance, repair,...
3 months ago

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...
3 months 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

Email:

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...
3 months 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

Email:

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...
3 months 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

Email:


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...
3 months ago

Physics Maths Engineering

Carbon emissions and low-carbon innovation in firms

Jiao Ma

Jiao Ma

Institution:

Email:


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...
3 months 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

Email:

Shuozi Wang,

Shuozi Wang

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

Email:

Xusong Shao,

Xusong Shao

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

Email:

Fang Liu,

Fang Liu

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

Email:

Zefeng Bao

Zefeng Bao

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

Email:


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...
4 months 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

Email:

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

Email:

Jacob B. Lisuma,

Jacob B. Lisuma

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

Email:

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

Email:

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

Email:

Jerome M. Mwimanzi,

Jerome M. Mwimanzi

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

Email:

Furaha M. Chuma,

Furaha M. Chuma

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

Email:

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

Email:

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

Email:


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...
5 months 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

Email:

Eylon Shamir,

Eylon Shamir

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

Email:

Theresa Modrick Hansen,

Theresa Modrick Hansen

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

Email:

Zhengyang Cheng

Zhengyang Cheng

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

Email:


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...
5 months ago

Related Subjects

Physics Math Chemistry Computer science Engineering Biology

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