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Market-based solution in China to finance the clean from the dirty

Fundamental Research 2024年第2期4卷 324-333页

作者： Haoqi Qian Rong Ma Libo Wu Institute for Global Public Policy Fudan UniversityShanghai 200433China lse-Fudan Research Centre for Global Public Policy Fudan UniversityShanghai 200433China School of Economics Fudan UniversityShanghai 200433China Shanghai Institute for Energy and Carbon Neutrality Strategy Fudan UniversityShanghai 200433China

Financial incentives play a key role in promoting renewable energy investments that can help China achieve the‘dual carbon’*** national emissions trading scheme(ETS)and the renewable energy portfolio standard(RPS)are two existing market-based policy instruments that can generate stable expected returns for low-carbon *** paper studies the interactive distribution effects of these two market-based *** use the micro-level thermal power plant data to investigate the abatement effects of the national ETS,in which the details show that the existing rate-based ETS will result in higher negative impacts on power units,whose installed capacities are smaller than 400 *** interactive distribution effects between the two markets will occur when the permit allocation standards of the national ETS become stricter than the existing *** in Eastern China and Northern China will face high pressure on costs in both ETS and RPS *** the levels of the permit allocation standards are set as 70%of the existing ones and the carbon price is assumed to be 200 yuan/ton in 2030,the annual market size of the national ETS will be nearly 100 billion yuan,and the annual market size is predicted to be 250 billion *** the existing rate-based national ETS,the China Certified Emission Reduction(CCER)mechanism will have an offsetting effect,which should be taken into serious consideration during the policy-making processes in the future.

关键词： Emission trading scheme Renewable energy portfolio standard Green finance Policy interactions China certified emission reduction Distribution effect

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Preparation and Characterisation of Corncob-Based Biosorbents in Côte d’Ivoire

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Advances in Materials Physics and Chemistry 2024年第8期14卷 178-195页

作者： Miezan Gnoan Ghislaine de Bouanzi Patrick Grah Atheba Serge Kouassi Gbamélé Martin Alla Aka Albert Trokourey Laboratory of Constitution and Reaction of Matter (LCRM) Flix Houphout-Boigny University Abidjan Cte dIvoire Laboratory of Environmental Sciences (lse) Nangui Abrogoua University Abidjan Cte dIvoire

This study focuses on the preparation of corncob-based biosorbents. The chemical impregnation method was used to vary the chemical agent namely phosphoric acid H3PO4 (BA) and sodium hydroxide NaOH (BB). The physicochemical analysis of the two biosorbents indicated that under the same preparation conditions, the bio-sorbents have after activation yields lower than 50% (24.37% for BB and 49.09% for BA). In addition, the biosorbents have iodine index values between 444.17 mg/g and 418.79 mg/g and specific surfaces related to the adsorption of methylene blue ranging from 18.54 m2/g to 19.70 m2/g. The study of surface functional groups by using the Boehm test and pH zero point charge (pHPZC) confirmed the acidic nature of BA and BB biosorbents with respective values pHPZC = 4.01 and pHPZC = 4.90. The Langmuir method and BET analysis determined the specific surface areas by liquid phase adsorption of methylene blue as well as the porosity. The BET surface areas of BA and BB obtained are 72.01 m2/g and 63.10 m2/g respectively. The influence of the chemical activating agent on the formation of pores was confirmed by electron microscopy (SEM) analysis. From this study, it is found that the best activating agent for corn cobs was found to be phosphoric acid because the BA biosorbent was revealed to be the most favourable due to its surface area and good pore volume which are high compared to sodium hydroxide NaOH. Moreover, their application as adsorbent for effluent treatment could be explored.

关键词： Biosorbent Corncobs Chemical Activation Phosphoric Acid Sodium Hydroxide

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Cascaded H-Bridges Asymmetrical 11-Levels Optimization

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材料科学与工程（中英文B版） 2011年第4期1卷 496-503页

作者： Mohamed Nejib Ben Nasr Khammassi Anis Kebir Faouzi Ben Ammar Unite de recherche.SICISI ESSTT 5av. Taha Hussein BP 56 Bab Mnara-lO08 Universite de Tunis Tunisia unitd de recherche.＂ lse INSA T Centre Urbain Nord BP 676 1080 Tunis

The following dissertation aims at investigating the multilevel topology basis through the analyses of the harmonic elimination control modeling methodology of the asymmetrical inverter. Thus the contribution of this paper can be summarized mainly by the fact that the pre-calculated PWM control used to control the symmetrical structure, as applied to the asymmetrical structure with a reduced number of cells, provides the same performance level resolution and signal strength to the load terminals, which guarantees a constant voltage frequency report. This observation is similar for the three cells, which allows the use of different drivers such as MOSFET, IGBT and GTO. These results have a good performance from the intrinsic proprieties of each semiconductor for each cell.

关键词：水平分辨率不对称非对称结构优化 H桥级联 MOSFET 消谐控制

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Harmonic Distortion Rate Analysis of H-Bridges Multilevel Inverter

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材料科学与工程（中英文B版） 2011年第3期1卷 308-315页

作者： Mohamed Nejib Ben Nasr Khammassi Anis Kebir Faouzi Ben Ammar Unite de recherche.SICISI ESSTT 5av. Taha Hussein BP 56 Bab Mnara-1008 Universite de Tunis Tunisia Unite de recherche. lse INSAT Centre Urbain Nord BP 676 1080 Tunisia

This paper represents comparative study on two control techniques applied to H-bridges multilevel inverter. The considered techniques are standard PWM and harmonic elimination control. Their performances are compared in terms of THD and commutation’s losses so that the choice of power switches is optimized. Simulation results indicated that the harmonic elimination technique exhibits better results than the standard PWM technique, which is sustained by the reduce of the commutation losses, and a power rise for the switches ensuring the use of GTOs, IGCTs.

关键词：多电平逆变器 H桥失真率 PWM技术谐波技术标准电源开关控制技术

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A digital twin model-based approach to cost optimization of residential community microgrids

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Global Energy Interconnection 2024年第1期7卷 82-93页

作者： Mariem dellaly Sondes Skander-Mustapha Ilhem Slama-Belkhodja Université de Tunis El Manar Ecole Nationale d’Ingénieurs de TunisLR11ES15 Laboratoire de Systèmes Electriques1002TunisTunisie Université de Carthage Ecole Nationale d’Architecture et d’UrbanismeLaboratoire de Systèmes Electriques1002TunisTunisie

This paper presents a peer-to-peer community cost optimization approach based on a single-prosumer energy management *** objective is to optimize energy costs for prosumers in the community by enhancing the consumption *** study was conducted along two main *** first axis focuses on designing a digital twin for a residential community microgrid *** phase involves data collection,cleaning,exploration,and ***,it includes replicating the functionality of the real platform and validating the *** second axis involves the development of a novel approach that incorporates two distinct prosumer behaviors within the same community microgrid,while maintaining the concept of peer-to-peer energy *** without storage utilize their individual PV systems to fulfill their energy requirements and inject excess energy into a local ***,a single prosumer with a storage system actively engages in energy exchange to maximize the community’s *** is achieved by optimizing battery usage using a cost optimization *** proposed solution is validated using the developed digital twin.

关键词： Energy management system(EMS) Cost optimization Digital twin Photovoltaic systems Microgrid

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我国老年人自评经济状况与睡眠质量和时长的关系

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医学与社会 2024年第6期37卷 1-9页

作者：叶欣王鑫峰复旦大学全球公共政策研究院上海200433 复旦大学-伦敦政治经济学院(lse)全球公共政策研究中心上海200433

目的:探索我国老年人自评经济状况与睡眠质量和时长的关系,为相关政策和干预措施提供参考。方法:基于中国老年健康影响因素跟踪调查数据,运用有序logit面板回归模型对47718名60岁及以上老年人的自评经济状况与睡眠质量、睡眠时长的关系... 详细信息

目的:探索我国老年人自评经济状况与睡眠质量和时长的关系,为相关政策和干预措施提供参考。方法:基于中国老年健康影响因素跟踪调查数据,运用有序logit面板回归模型对47718名60岁及以上老年人的自评经济状况与睡眠质量、睡眠时长的关系进行分析。结果:老年人的自评经济状况与睡眠质量显著相关,相比于经济状况困难的老年人,自评经济状况一般(OR=1.37,P<0.001)和自评经济状况富裕(OR=1.65,P<0.001)的老年人睡眠质量较好。老年人的自评经济状况与睡眠时长显著相关,自评经济状况一般(OR=1.16,P<0.001)和自评经济状况富裕(OR=1.21,P<0.001)的老年人睡眠时长较长。自评经济状况与睡眠的关系具有一定异质性,自评经济状况与睡眠时长的关系主要在低龄、女性和居住在农村的老年人中展现。结论:老年人良好的自评经济状况有助于更好的睡眠质量和更长的睡眠时长。政策制定者和公共卫生工作者需要更好地了解不同老年人群的需求,以制定针对性的干预措施和政策。

关键词：老年健康睡眠质量睡眠时长自评经济状况老年人

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Structural Characterization of Laser Bonded Sapphire Wafers Using a Titanium Absorber Thin Film

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Journal of Materials Science & Technology 2015年第5期31卷 484-488页

作者： A.de Pablos-Martín S.Tismer Th.Hche Fraunhofer Institute for Mechanics of Materials IWM Walter-Hlse-Str.106120 HalleGermany

Two sapphire substrates were tightly bonded by irradiation with a 1064 nm nanosecond laser and using a sputtered 50 nm-titanium thin film as an absorbing *** laser irradiation,aluminum from the upper substrate is incorporated into the thin film,forming Ti-Al-O *** the irradiated region becomes transparent,the bond quality was evaluated by scanning acoustic microscopy.

关键词： Laser welding Absorbing film Sapphire wafer bondin

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Assessment of Nitrates and Nitrites in Borehole Water from the Southern and the Northern Region of Côte d’Ivoire (West Africa)

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Open Journal of Modern Hydrology 2024年第2期14卷 87-105页

作者： Jean Stéphane Claon Kouassi Kouakou Serge Sérikipré Laurent Seka M’Bassidjé Arsène N’Guettia Kossonou Roland Traoré Aïcha Djamanallico Joseph Kouadio Kouakou Luc Analytical Sciences and Public Health department University of Félix Houphou&#235t-Boigny Abidjan C&#244te d’Ivoire Water Quality Control and Analysis Laboratory (LACQUE) Office National de l’Eau Potable (ONEP) Abidjan C&#244te d’Ivoire Biology and Health Laboratory University of Félix Houphou&#235t-Boigny Abidjan C&#244te d’Ivoire department of Medical and Fundamental Biochemistry Institut Pasteur of C&#244te d’Ivoire Abidjan C&#244te d’Ivoire Laboratory of Environmental Sciences (lse) University of Nangui Abrogoua Abidjan C&#244te d’Ivoire

This study aimed to evaluate the quality of water from village boreholes by measuring physicochemical parameters such as nitrates, nitrites, and total organic carbon (TOC). Forty-five (45) village pumps from the Southern (Basse Côte) and the Northern (Korhogo) region of Cte d’Ivoire (west Africa) were sampled. Physicochemical parameters such as temperature, pH, conductivity at 25˚C, and turbidity were determined in situ, while nitrite and nitrate were analyzed according to ISO 10304-1 (2007) standard and total organic carbon (TOC) by NF EN 1484 (1997) standard. The results showed that the borehole waters of the Basse Côte and Korhogo analyzed are acidic, with an average temperature of 27.51˚C ± 0.16˚C and 29.95˚C ± 0.51˚C respectively for the Basse Côte and Korhogo regions. The borehole waters of the Basse Côtedo not contain nitrites, while those of Korhogo have average nitrite contents of 0.32 mg/l. The average nitrate rate in the waters of the Basse Côte and Korhogo are 12.08 ± 2.11 mg/l and 11.03 ± 3.18 mg/l respectively. The average TOC concentration of the waters of the Basse Côte is 1.28 ± 0.32 mg/l and that of Korhogo is 0.56 ± 0.09 mg/L. The study showed that the borehole waters of the Basse Côte and Korhogo have average temperatures between 27.4˚C and 29.95˚C with a slightly acidic pH value and acceptable salinity. The TOC concentrations obtained at the different sampling points were all below the French standard (2 mg/L) except for certains pumps of the Basse Côte. The water samples from the Basse Côte were devoid of nitrite. On the other hand, those from Korhogo revealed the presence of nitrite. Also, the borehole waters of the regions of the Basse Côte and Korhogo contain relatively high nitrate contents, presumably due to anthropometric activity. Overall, our study on the quality of drinking water showed that the waters analyzed are in compliance with international standards and safe for consumption.

关键词： Drinking Water pH Turbidity TOC Nitrates Nitrites Health Effect

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PM和O污染协同控制的健康效益评估：以四个直辖市为例

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环境科学研究 2024年

作者：陈勃昊叶欣汤维祺吴力波钱浩祺上海市重大传染病与生物安全研究院复旦大学全球公共政策研究院复旦-lse全球公共政策研究中心复旦大学发展研究院复旦大学经济学院复旦大学大数据研究院

以细颗粒物(PM2.5)和臭氧(O3)为代表的大气污染物对人体健康的危害不断加剧。本文分析了2013—2020年我国各直辖市归因于PM2.5和O3污染的健康效益损失，并估算在未来2030—2100年4种共享社会经济路径（SSPs）情景下，各直辖市PM2.5和O3... 详细信息

以细颗粒物(PM2.5)和臭氧(O3)为代表的大气污染物对人体健康的危害不断加剧。本文分析了2013—2020年我国各直辖市归因于PM2.5和O3污染的健康效益损失，并估算在未来2030—2100年4种共享社会经济路径（SSPs）情景下，各直辖市PM2.5和O3协同减排所导致的健康效益。结果表明：①各直辖市归因于PM2.5污染的早死人数均显著下降。除重庆外，其余直辖市归因于PM2.5污染的经济损失呈现下降趋势。②各直辖市归因于O3污染的早死人数和经济损失均呈现显著上升趋势。在区县层级，北京朝阳区、上海浦东新区和天津滨海新区归因于O3污染的早死人数和经济损失较为突出，而重庆市各区县整体经济损失变化幅度较为平缓。③相较于基准情景，未来4种情景下各直辖市PM2.5健康效益均呈现波动上升趋势，SSP3-7.0情景下2075年首次获得健康效益。SSP3-7.0和SSP5-8.5情景下，各直辖市始终存在O3的健康效益损失；SSP1-2.6和SSP2-4.5情景下，O3的健康效益呈现波动上升。研究显示，我国现阶段应不断加强PM2.5和O3污染协同控制，注重针对不同地区制定差异化的污染物控制和健康效益政策，强化污染治理的力度和政策资源支持，不断提升空气污染治理的健康效益。

关键词： PM 臭氧(O ) 空气污染直辖市健康效益

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Mercury Levels Assessment in the Population of Aby and Frambo Villages in the Vinicity of Aby Lagoon in Côte d’Ivoire (West Africa)

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Journal of Water Resource and Protection 2024年第3期16卷 219-232页

作者： Stéphane Jean Claon Serge Kouakou Kouassi Nina Laurette Ahouéfa Laurent Kipré Seri Arsène M’bassidjé Seka Joseph Allico Djaman Luc Kouakou Kouadio Analytical Sciences and Public Health department University of Félix Houphou&eumlt-Boigny Abidjan C&ocircte d'Ivoire Water Quality Control and Analysis Laboratory (LACQUE) Office National de l’Eau Potable (ONEP) Abidjan C&ocircte d’Ivoire Biology and Health Laboratory University of Félix Houphou&eumlt-Boigny Abidjan C&ocircte d’Ivoire Laboratory of Nutrition and Food Safety Department of Science and Food Technology Nangui Abrogoua University Abidjan C&ocircte d'Ivoire department of Medical and Fundamental Biochemistry Institut Pasteur of C&ocircte d'Ivoire Abidjan C&ocircte d’Ivoire Laboratory of Environmental Sciences (lse) University of Nangui Abrogoua Abidjan C&ocircte d’Ivoire

The Minamata Convention in the aim to protect human life and the environment, seeks to reduce mercury (Hg) by monitoring it concentrations in the environment. Artisanal and Small-scale Gold Mining (ASGM) has been identified as the most important anthropogenic source of human exposure to Hg. In this context, the main goal of this study was to assess the level of mercury in hair of two (2) populations living along two lagoons respectively Aby and Tendo, in Ivory Coast. To reach this goal, hair samples of 138 residents were collected and analyzed by using Cold Vapor Atomic Fluorescence Spectrophotometry (CV-AFS) technique for mercury concentration. Results showed that for the entire population the Hg mean was 2.34 μg/g. Also, they were ranged between 0.15 to 8.53 μg/g and presented substantial differences amongst the villages. In Aby village, we observed the highest Hg concentrations (Mean = 2.62 μg/g). Our findings showed that almost the entire sample group (82%) exceed the USEPA recommended limit, furthermore 56% of them exceed the normal level of WHO and 2% of the respondent has the unhealthy levels of mercury (≥6 μg Hg/g) of hair by WHO standards. Gender differences in hair mercury varies greatly among reports. Lower levels in women’s hair compared to men were reported in the both village. Considering age, the lowest concentrations were observed with children. However, when we take in account the age groups, data suggested that the most exposed sub-population of [18-29] years old is from Aby village in opposite at Frambo village, the same case those who were ≥ 40 years old. It’s convenient to note that, the proportion of Mercury levels would not to be neglected among studied population especially with the resident from Aby village. So, some measures need to be taken at the political level to control mercury contamination.

关键词： Mercury Hair ASGM Population Exposure Côte d’Ivoire

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