2021 9th International Renewable and Sustainable Energy Conference (IRSEC)最新文献

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Thermal Behaviour Evaluation of a Traditional Earthen Building Under the Climatic Conditions of the Benguerir City Benguerir城市气候条件下传统土制建筑的热性能评价
2021 9th International Renewable and Sustainable Energy Conference (IRSEC) Pub Date : 2021-11-23 DOI: 10.1109/IRSEC53969.2021.9741168
Tarik Lemrani, Mohamed Ouakarrouch, N. Laaroussi, H. Radoine, Hicham Mastouri
{"title":"Thermal Behaviour Evaluation of a Traditional Earthen Building Under the Climatic Conditions of the Benguerir City","authors":"Tarik Lemrani, Mohamed Ouakarrouch, N. Laaroussi, H. Radoine, Hicham Mastouri","doi":"10.1109/IRSEC53969.2021.9741168","DOIUrl":"https://doi.org/10.1109/IRSEC53969.2021.9741168","url":null,"abstract":"This research project focuses mainly on the experimental characterization of thermophysical properties of the earth material extracted from the Benguerir city (Central region of Morocco). Samples were prepared and their thermophysical properties were characterized experimentally using the steady-state hot plate method and the differential scanning calorimetry method to estimate thermal conductivity and thermal heat capacity, respectively. A dynamic thermal simulation was carried out on a traditional building located by hypothesis in the Benguerir city. The obtained results showed an important interest in using earth as a promoter building material while preserving the local cultural heritage, ensuring thermal comfort, contributing to significant energy savings during all seasons of the year, and reducing greenhouse gas emissions..","PeriodicalId":361856,"journal":{"name":"2021 9th International Renewable and Sustainable Energy Conference (IRSEC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129278482","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Comparative Analysis of Conventional And Modified Perturb And Observe MPPT Controllers Under Partial Shading Conditions 部分遮阳条件下常规与改进扰动的对比分析及MPPT控制器的观察
2021 9th International Renewable and Sustainable Energy Conference (IRSEC) Pub Date : 2021-11-23 DOI: 10.1109/IRSEC53969.2021.9741190
Sajib Ahmed, Immad Shams, S. Mekhilef, T. Soon, M. Mubin
{"title":"Comparative Analysis of Conventional And Modified Perturb And Observe MPPT Controllers Under Partial Shading Conditions","authors":"Sajib Ahmed, Immad Shams, S. Mekhilef, T. Soon, M. Mubin","doi":"10.1109/IRSEC53969.2021.9741190","DOIUrl":"https://doi.org/10.1109/IRSEC53969.2021.9741190","url":null,"abstract":"Sun-oriented energy is one of the most unswerving energy for its abundance, non-conventional, and pollution-free nature, and it is primarily reliant upon temperature and irradiance conditions. The current and voltage (I-V) curve shows a single peak point due to its non-linear relationship at uniform irradiance conditions. The maximum power point tracking (MPPT) controller is required for operating the solar photovoltaic system at its maximum power capability. Among many developed algorithms, perturb and observe (P&O) is renowned for its flexibility and simple execution in low-cost devices. On the contrary, it has a downside during operation at partial shading condition (PSC). Therefore, to overcome the issue of PSCs, modified P&O controllers is proposed in the literature. Here, the conventional P&O algorithm is compared to three modified P&O algorithms where modified algorithms can improve the performance of various features. The simulation study has been performed for all the proposed controllers under the same test conditions.","PeriodicalId":361856,"journal":{"name":"2021 9th International Renewable and Sustainable Energy Conference (IRSEC)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131235925","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Modeling and Simulation of Photovoltaic Pumping System Used for Irrigation 用于灌溉的光伏抽水系统建模与仿真
2021 9th International Renewable and Sustainable Energy Conference (IRSEC) Pub Date : 2021-11-23 DOI: 10.1109/IRSEC53969.2021.9740735
Duy An Pham
{"title":"Modeling and Simulation of Photovoltaic Pumping System Used for Irrigation","authors":"Duy An Pham","doi":"10.1109/IRSEC53969.2021.9740735","DOIUrl":"https://doi.org/10.1109/IRSEC53969.2021.9740735","url":null,"abstract":"this paper presents the modeling and simulation of photovoltaic pumping system which consists of PV panel, DC-DC converter, and DC motor driving a centrifugal pump. These systems are very useful for remote areas with no access to power grid. The output power of PV panel strongly depends on external conditions such as solar irradiance and temperature. The fuzzy logic maximum power point tracking algorithms have been implemented to regulate the duty cycle of the DC-DC converter. A comparison between Photovoltaic pumping system with MPPT connection of the PV panel and Photovoltaic pumping system with direct connection of the PV panel are performed to show the efficient of MPPT controller.","PeriodicalId":361856,"journal":{"name":"2021 9th International Renewable and Sustainable Energy Conference (IRSEC)","volume":"168 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120863813","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Impact of Earth-To-Air Exchanger on Heating and Cooling Energy Needs of a Residential Building in Benguerir, Morocco 地空交换器对摩洛哥Benguerir某住宅建筑冷暖能源需求的影响
2021 9th International Renewable and Sustainable Energy Conference (IRSEC) Pub Date : 2021-11-23 DOI: 10.1109/IRSEC53969.2021.9741119
Oumaima Diani, Hicham Mastouri, H. Radoine, Hassan Mahach, B. Benhamou
{"title":"Impact of Earth-To-Air Exchanger on Heating and Cooling Energy Needs of a Residential Building in Benguerir, Morocco","authors":"Oumaima Diani, Hicham Mastouri, H. Radoine, Hassan Mahach, B. Benhamou","doi":"10.1109/IRSEC53969.2021.9741119","DOIUrl":"https://doi.org/10.1109/IRSEC53969.2021.9741119","url":null,"abstract":"The purpose of this work is to design and investigate the effect of an Earth-to-Air Heat eXchanger (EAHX) on the thermal comfort conditions of a residential building in Benguerir, Morocco. The EAHX is designed throughout a parametric study in the context of the soil properties and the hot semi-arid climate of Benguerir, considering two of its significant parameters which are the pipe length and the burying depth. More than 120 combinations of these parameters are studied by carrying out more than 120 dynamic simulations using the well-validated TYPE 460 of TRNSYS software. The identification of the best combinations of the EAHX parameters is based on the maximum and the minimum EAHX exit air temperature for cooling and heating purpose respectively. Considering, the land availability around the house, it was found that the best EAHX parameters combination is constituted of 8 pipes of 51 m length and 0.15 m inner diameter buried at a depth of 4.5 m, operated at 3 m.s-1 air velocity. This system allows for 36% of the house's annual cooling load based on a set temperature of 26°C, while the system is not interesting for air heating.","PeriodicalId":361856,"journal":{"name":"2021 9th International Renewable and Sustainable Energy Conference (IRSEC)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124404131","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Modeling of Atmospheric Dispersion of Pollutants Through the Building using a Lagrangian Stochastic Model 用拉格朗日随机模型模拟污染物在建筑物中的大气扩散
2021 9th International Renewable and Sustainable Energy Conference (IRSEC) Pub Date : 2021-11-23 DOI: 10.1109/IRSEC53969.2021.9741123
Sara Hakim, N. Laaroussi, M. Garoum, Boulos Alam, A. Feiz
{"title":"Modeling of Atmospheric Dispersion of Pollutants Through the Building using a Lagrangian Stochastic Model","authors":"Sara Hakim, N. Laaroussi, M. Garoum, Boulos Alam, A. Feiz","doi":"10.1109/IRSEC53969.2021.9741123","DOIUrl":"https://doi.org/10.1109/IRSEC53969.2021.9741123","url":null,"abstract":"In this paper, we will present a summary of recent studies made to model the atmospheric dispersion around a building using Computational Fluid Dynamics (CFD). So we will focus on the studies made by Bahlali et al, who uses the Lagrangian stochastic CFD model implemented in Code_Saturne to model our problem taking into account atmospheric stratification. Our work essentially consists in showing the importance of this model by commenting on the results of the work obtained by Bahlali et al.","PeriodicalId":361856,"journal":{"name":"2021 9th International Renewable and Sustainable Energy Conference (IRSEC)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132840277","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Development of an Energy Sustainability Index of Mobility for Tunisian Cities 突尼斯城市能源可持续性流动指数的发展
2021 9th International Renewable and Sustainable Energy Conference (IRSEC) Pub Date : 2021-11-23 DOI: 10.1109/IRSEC53969.2021.9741186
Emna Khammassi, F. Rehimi, A. Kalboussi
{"title":"Development of an Energy Sustainability Index of Mobility for Tunisian Cities","authors":"Emna Khammassi, F. Rehimi, A. Kalboussi","doi":"10.1109/IRSEC53969.2021.9741186","DOIUrl":"https://doi.org/10.1109/IRSEC53969.2021.9741186","url":null,"abstract":"The aim of this work was to develop an energy sustainability index of mobility for Tunisian cities according to a set of relevant 58 indicators reflecting the sustainability dimensions (environmental, social and economic) with each dimension comprising sub-dimensions (subdivisions).The indicators are normalized, weighted by the principal component analysis method PCA/FA and aggregated to form a composite index for each sub-dimension and then for each dimension. Finally, the composite indices of the dimensions were aggregated to introduce an energy mobility index of sustainability for each city in Tunisia.Results reveal that the following cities are more sustainable: Sousse, Mahdia, Manouba, Gabes, Gafsa, Kebili, Monastir and Tunis, whereas cities such as Sfax, Le Kef, Kasserine, Beja, Siliana and Tataouine are weakly ranked in view of the sustainability energy index of mobility.This study allows highlighting the gaps and inequalities between cities in terms of their energy sustainability and required to have a clear idea about energy sustainability for decision makers and planners.","PeriodicalId":361856,"journal":{"name":"2021 9th International Renewable and Sustainable Energy Conference (IRSEC)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116800488","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The Effect of Light on Anaerobic Digestion Process of Household and Similar Waste under Mesophilic Regime 光对中温环境下生活垃圾及类似垃圾厌氧消化过程的影响
2021 9th International Renewable and Sustainable Energy Conference (IRSEC) Pub Date : 2021-11-23 DOI: 10.1109/IRSEC53969.2021.9741135
Amine Hajji, N. Laaroussi, M. Rhachi, M. Garoum
{"title":"The Effect of Light on Anaerobic Digestion Process of Household and Similar Waste under Mesophilic Regime","authors":"Amine Hajji, N. Laaroussi, M. Rhachi, M. Garoum","doi":"10.1109/IRSEC53969.2021.9741135","DOIUrl":"https://doi.org/10.1109/IRSEC53969.2021.9741135","url":null,"abstract":"Anaerobic digestion is a promising technology that allows the production of biogas from different waste sources. Numerous studies have been conducted to optimize the production of methane-rich biogas, most of these studies have been carried out with anaerobic digestion systems operating under conditions of total darkness. Therefore, little is known about the effect of light on anaerobic digestion processes. The present work aims to study the photosynthesis-assisted anaerobic digestion of municipal solid waste with an average light intensity of 500 lux, provided by natural and artificial light continuously. The effect of light on biogas production and composition was studied. The results showed for the lighted digester, a low biogas production as well as a low methane content of about 0.11 l/d and 51 %, respectively, which represents a reduction of 40% in biogas and a 21.5 % in methane, compared to the unlighted digester.","PeriodicalId":361856,"journal":{"name":"2021 9th International Renewable and Sustainable Energy Conference (IRSEC)","volume":"1993 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131048236","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
PV Sizing of a Grid Connected Solar Carport System Linked to Charging Stations and its Economic Analysis (A Case Study) 与充电站相连接的并网太阳能车场系统的光伏发电规模及其经济分析(一个案例研究)
2021 9th International Renewable and Sustainable Energy Conference (IRSEC) Pub Date : 2021-11-23 DOI: 10.1109/IRSEC53969.2021.9741133
Fatima-Ezzahra Riakhi, A. Khaldoun
{"title":"PV Sizing of a Grid Connected Solar Carport System Linked to Charging Stations and its Economic Analysis (A Case Study)","authors":"Fatima-Ezzahra Riakhi, A. Khaldoun","doi":"10.1109/IRSEC53969.2021.9741133","DOIUrl":"https://doi.org/10.1109/IRSEC53969.2021.9741133","url":null,"abstract":"Solar energy is a clean energy source for electricity production that can help in supplying the population increasing electricity demand. The goal of this paper is to design a grid- connected photovoltaic (PV) solar carport system able to supply electricity to electric cars. Sizing the grid-tied PV solar carport system is to decide the number and type of solar panels, the inverter size, in addition to the AC control panels and the electricity meters. For a car parking area of 165 m2, 102 solar panels are installed with first-year energy production of 42150 KWh which declines yearly by a rate of 0.5%. This is analyzed using the software System Advisor Model (SAM). The daily energy demand is 65 KWh, for which a central inverter of 83KW, a bidirectional power meter, and an AC control panel operating on 120V/240V are installed. In addition to that, the copper wires linking the equipment of the PV system are sized. The capital investment cost of the system is 518962.22 MAD, the life cycle cost (LCC) is 902470.07 MAD, the levelized cost of energy (LCOE) is 1.23 MAD/KWh and the estimated payback period is 7.5 years. This solar carport PV system mitigates CO2 emissions by an amount of 657347 Kg during the lifetime of the PV array. The results of the developed design can further be used in other applications for solar PV system sizing.","PeriodicalId":361856,"journal":{"name":"2021 9th International Renewable and Sustainable Energy Conference (IRSEC)","volume":"149 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134459080","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Electrochemical Performance of Na/NVP@C half-cell in Pyridinium Ionic Liquid-based Hybrid Electrolyte 钠/NVP@C半电池在吡啶离子液体基混合电解质中的电化学性能
2021 9th International Renewable and Sustainable Energy Conference (IRSEC) Pub Date : 2021-11-23 DOI: 10.1109/IRSEC53969.2021.9741114
Hasna Wakrim, Abdelwahed Chari, S. Majid, El Houcine El Maataouy, A. Boukhriss, J. Alami, S. Gmouh, M. Dahbi
{"title":"Electrochemical Performance of Na/NVP@C half-cell in Pyridinium Ionic Liquid-based Hybrid Electrolyte","authors":"Hasna Wakrim, Abdelwahed Chari, S. Majid, El Houcine El Maataouy, A. Boukhriss, J. Alami, S. Gmouh, M. Dahbi","doi":"10.1109/IRSEC53969.2021.9741114","DOIUrl":"https://doi.org/10.1109/IRSEC53969.2021.9741114","url":null,"abstract":"Compared to the lithium ion batteries (LIBs), sodium ion-batteries (SIBs) gained lot of attention due to its large-scale energy storage with low cost. Carbonate electrolytes are widely used in batteries but they exhibit low thermal stability with high flammability, and carry out secondary reactions with the electrodes which decrease battery performance. Replacing the carbonate solvents with ionic liquids (ILs) is considered as a promising strategy to improve the thermal and electrochemical stability of batteries. In this study we report N<inf>a3</inf>V<inf>2</inf>(PO<inf>4</inf>)<inf>3</inf>@C electrochemical performance in an hybrid electrolyte based on 0.5 mol/l of sodium bis((trifluoromethyl) sulfonyl) imide, 90wt.% of propylene carbonate (PC), and 10wt.% 1-hexylpyridinium hexafluorophosphate ([C<inf>6</inf>Pyr][PF<inf>6</inf>]) ILs. At 25 mA.g<sup>-1</sup>, Na<inf>3</inf>V<inf>2</inf>(PO<inf>4</inf>)<inf>3</inf>@C cathode deliver a specific initial discharge capacity of 81.55 and 116.31 mAh.g<sup>-1</sup>, with a retention capacity of 57% and 67% for neat PC and PC<inf>0.9</inf>:[C<inf>6</inf>Pyr][ PF<inf>6</inf>]<inf>0.1</inf> electrolytes, respectively. Whereas, when the current increased to 100 and 200 mA.g<sup>-1</sup>, Na/0.5 mol/l NaTFSI:PC<inf>0.9</inf>:[C<inf>6</inf>Pyr][PF<inf>6</inf>]0.1/NVP@C half-cell revealed a reversible cyclability with a discharge capacity of 120.14 and 110 mAh.g<sup>-1</sup>, respectively. In addition, the coulombic efficiency was greater than result obtained for electrolyte withoutIL (up to 90%). Thus, PC<inf>0.9</inf>:[C<inf>6</inf>Pyr][PF<inf>6</inf>]<inf>0.1</inf>:0.5mol/l NaTFSI is considered as promising electrolyte improving SIBs performance.","PeriodicalId":361856,"journal":{"name":"2021 9th International Renewable and Sustainable Energy Conference (IRSEC)","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122874530","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Energetic and Economic Evaluation of Mono and Poly c-Si Grid-connected PV Systems: In Ouarzazate, Morocco 单晶硅和多晶硅并网光伏系统的能量和经济评价:在摩洛哥的瓦尔扎扎特
2021 9th International Renewable and Sustainable Energy Conference (IRSEC) Pub Date : 2021-11-23 DOI: 10.1109/IRSEC53969.2021.9741156
Manar Jabbour, Y. Darmane, Abdelhadi Baala, M. Akhsassi, Hasnae El Mouden, Fatima Chaoui, M. Raoufi, A. Outzourhit, Amine Bennouna
{"title":"Energetic and Economic Evaluation of Mono and Poly c-Si Grid-connected PV Systems: In Ouarzazate, Morocco","authors":"Manar Jabbour, Y. Darmane, Abdelhadi Baala, M. Akhsassi, Hasnae El Mouden, Fatima Chaoui, M. Raoufi, A. Outzourhit, Amine Bennouna","doi":"10.1109/IRSEC53969.2021.9741156","DOIUrl":"https://doi.org/10.1109/IRSEC53969.2021.9741156","url":null,"abstract":"The aim of this study is to evaluate and compare the energetic and economic performances of two grid-connected photovoltaic (PV) systems installed in the Polydisciplinary Faculty of Ouarzazate, Morocco. Two silicon-based PV modules are evaluated experimentally with the corresponding results simulated by the System Advisor Model (SAM) software. The evaluated performance parameters are the performance ratio (PR), the final yield, the capacity factor (CF) and the levelized cost of energy (LCOE). The measured and simulated values have shown that the p-Si modules give the best performance compared to the m-Si, respectively, with a PR of 80% and 78%, a capacity factor of 21.9% and 20%, and a low LCOE of $59/MWh.","PeriodicalId":361856,"journal":{"name":"2021 9th International Renewable and Sustainable Energy Conference (IRSEC)","volume":"73 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123961456","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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