Physics Maths Engineering
Slawomira Hajduk
Slawomira Hajduk
Faculty of Engineering Management, Bialystok University of Technology,
The effects of urban transport are highly concerning. The rapid urbanization and motorization in smart cities have a huge impact on sustainability. The goal of the paper is to analyse the smart cities selected, in terms of the urban transport. This paper presents an overview of research works published between 1991 and 2020 concerning urban transport and MCDM (multi-criteria decision making). The author highlights the importance of decision-making criteria and their weight, as well as techniques. Seven criteria and forty-four objects were used as the input of the approach. The entropy weight method was used to compute the weight of each criterion. The TOPSIS (Technique for Order Performance by Similarity to Ideal Solution) was applied to calculate the assessment and ranking of transport performance for each smart city. Portland was found to be the best location for transport enterprises and projects; Tbilisi was ranked last. The values of the relative closeness coefficient ranged from 0.03504 to 0.921402. Finally, some suggestions for future research are discussed.
The study examines the performance of renewable energy systems based on energy, economic, and environmental perspectives, specifically in an agricultural farm setting.
Renewable energy systems, such as solar photovoltaic (PV) installations, enhance energy self-sufficiency and reduce the carbon footprint of agricultural activities, leading to more sustainable farming practices.
The study highlights cost savings from reduced reliance on grid electricity, long-term financial returns on investments in solar PV systems, and potential income from selling excess energy back to the grid.
Renewable energy systems significantly reduce greenhouse gas emissions and dependence on fossil fuels, contributing to a lower overall environmental impact of farm operations.
Key challenges include the initial high investment costs, the need for reliable energy storage solutions, and ensuring adequate system performance under varying weather conditions.
The research provides a framework for evaluating energy systems in terms of sustainability, offering valuable insights for policymakers and farmers to optimize renewable energy adoption for both economic and ecological gains.
Show by month | Manuscript | Video Summary |
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2025 April | 5 | 5 |
2025 March | 80 | 80 |
2025 February | 49 | 49 |
2025 January | 97 | 97 |
2024 December | 66 | 66 |
2024 November | 56 | 56 |
2024 October | 43 | 43 |
2024 September | 65 | 65 |
2024 August | 46 | 46 |
2024 July | 47 | 47 |
2024 June | 42 | 42 |
2024 May | 53 | 53 |
2024 April | 55 | 55 |
2024 March | 54 | 54 |
2024 February | 38 | 38 |
2024 January | 36 | 36 |
2023 December | 34 | 34 |
2023 November | 51 | 51 |
2023 October | 25 | 25 |
2023 September | 28 | 28 |
2023 August | 21 | 21 |
2023 July | 33 | 33 |
2023 June | 27 | 27 |
2023 May | 40 | 40 |
2023 April | 41 | 41 |
2023 March | 44 | 44 |
2023 February | 2 | 2 |
2023 January | 3 | 3 |
2022 December | 35 | 35 |
2022 November | 61 | 61 |
2022 October | 42 | 42 |
2022 September | 28 | 28 |
2022 August | 45 | 45 |
2022 July | 50 | 50 |
2022 June | 102 | 102 |
2022 May | 45 | 45 |
2022 April | 25 | 25 |
2022 March | 7 | 7 |
Total | 1621 | 1621 |
Show by month | Manuscript | Video Summary |
---|---|---|
2025 April | 5 | 5 |
2025 March | 80 | 80 |
2025 February | 49 | 49 |
2025 January | 97 | 97 |
2024 December | 66 | 66 |
2024 November | 56 | 56 |
2024 October | 43 | 43 |
2024 September | 65 | 65 |
2024 August | 46 | 46 |
2024 July | 47 | 47 |
2024 June | 42 | 42 |
2024 May | 53 | 53 |
2024 April | 55 | 55 |
2024 March | 54 | 54 |
2024 February | 38 | 38 |
2024 January | 36 | 36 |
2023 December | 34 | 34 |
2023 November | 51 | 51 |
2023 October | 25 | 25 |
2023 September | 28 | 28 |
2023 August | 21 | 21 |
2023 July | 33 | 33 |
2023 June | 27 | 27 |
2023 May | 40 | 40 |
2023 April | 41 | 41 |
2023 March | 44 | 44 |
2023 February | 2 | 2 |
2023 January | 3 | 3 |
2022 December | 35 | 35 |
2022 November | 61 | 61 |
2022 October | 42 | 42 |
2022 September | 28 | 28 |
2022 August | 45 | 45 |
2022 July | 50 | 50 |
2022 June | 102 | 102 |
2022 May | 45 | 45 |
2022 April | 25 | 25 |
2022 March | 7 | 7 |
Total | 1621 | 1621 |