Based on the existing statistical data of the Lingang Special Area in Shanghai and considering its future socio-economic development, industrial structure, and technological development, a LEAP-Lingang model was developed to analyze the evolution trends of energy demand and carbon emissions under the baseline scenario, low-carbon scenario, and enhanced low-carbon scenario. To enhance the prediction accuracy of the model, the Logistic population growth model was used to predict future population data, and the learning curve model was used to simulate the cost evolution trend of related carbon reduction technologies. In addition, an economic evaluation model for carbon reduction technologies was developed, and the economic costs and emission reduction potential of typical carbon reduction technologies were evaluated by drawing a marginal emission reduction cost curve. The results showed that under the enhanced low-carbon scenario, the renewable energy accounted for 69% of the primary energy consumption, and the electric energy accounted for 91% of the terminal energy demand in 2060. The Lingang Special Area could achieve carbon peak by 2030, and the carbon emissions in 2060 were predicted to decrease by 94% compared to that in the baseline scenario. In terms of contribution to emission reduction, clean energy substitution, industrial structure optimization, and terminal energy efficiency improvement played a key role in reducing carbon emissions near the port. In the medium term (until 2035), they were predicted to contribute 35.1%, 27.3%, and 16.2% of carbon emissions, respectively, and in the long term (until 2060), they should contribute 50.6%, 8.75%, and 7.7% of carbon emissions, respectively. Regarding specific carbon reduction technologies, hydrogen power generation; water electrolysis for hydrogen; and carbon capture, utilization, and storage (CCUS) technology were of great significance for achieving net-zero emissions, but the costs of emission reduction were relatively high. The research results can provide ideas and references for the low-carbon and green development of the Lingang Special Area and related areas.
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http://dx.doi.org/10.13227/j.hjkx.202301093 | DOI Listing |
Sensors (Basel)
December 2024
School of Aerospace and Mechanical Engineering, The University of Oklahoma, Norman, OK 73019, USA.
Autonomous vehicles (AVs) offer significant potential to improve safety, reduce emissions, and increase comfort, drawing substantial attention from both research and industry. A critical challenge in achieving SAE Level 5 autonomy, full automation, is path planning. Ongoing efforts in academia and industry are focused on optimizing AV path planning, reducing computational complexity, and enhancing safety.
View Article and Find Full Text PDFPharmaceutics
December 2024
Department of Urology and Department of Nuclear Medicine, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Shanghai 201399, China.
Background/objectives: The purpose of this study was to develop the gemcitabine-loaded drug-eluting beads (G-DEBs) for transarterial chemoembolization (TACE) in rabbit renal tumors and to evaluate their antitumor effect using 2-deoxy-2-[(18)F]fluoro-D-glucose positron emission tomography/X-ray computed tomography (F-FDG PET/CT).
Methods: DEBs were prepared by polyvinyl alcohol-based macromer crosslinked with -acryl tyrosine and ,'-methylenebis(acrylamide). Gemcitabine was loaded through ion change to obtain G-DEBs.
Polymers (Basel)
December 2024
School of Civil Engineering and Transportation, Northeast Forestry University, Harbin 150040, China.
Given the current construction waste accumulation problem, to utilize the resource of red brick solid waste, construction waste red brick was used as a concrete coarse aggregate combined with polypropylene fiber to prepare PPF (polypropylene fiber)-reinforced recycled brick aggregate concrete. Through a cube compression test, axial compression test, and four-point bending test of 15 groups of specimens, the influences of the aggregate replacement rate of recycled brick and the PPF volume on the mechanical properties of recycled brick aggregate concrete reinforced by PPF were studied, and a strength parameter calculation formula was constructed and modified based on the above. Finally, combined with a life cycle assessment (LCA), the carbon emissions of raw materials were analyzed and evaluated.
View Article and Find Full Text PDFPolymers (Basel)
December 2024
National Institute for Research and Development in Chemistry and Petrochemistry-ICECHIM, 202 Splaiul Independentei, 060021 Bucharest, Romania.
Compliance with EU legislation on the efficient use of fossil fuels and the reduction in emissions and environmental impact has led many sectors of industry to become interested in obtaining and using more sustainable polymer composites with improved lifetime, in the recovery and recycling of materials at the end of their life cycle, and in the use of renewable natural resources [...
View Article and Find Full Text PDFToxics
December 2024
Department of Environmental Science and Engineering, Xi'an Jiaotong University, Xi'an 710049, China.
In this study, gaseous element mercury (GEM) and gaseous oxidized mercury (GOM) in the atmosphere were continuously observed at a minute resolution from 1 April 2019 to 31 December 2020 in urban Xi'an, the largest central city in Northwestern China. The concentrations of GEM and GOM drastically fluctuated within the ranges of 0.022-297 ng/m and 0.
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