Revista Ecorfan最新文献

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Design and development of a comprehensive renewable energy system 综合可再生能源系统的设计与开发
Revista Ecorfan Pub Date : 2023-09-30 DOI: 10.35429/ejm.2023.31.14.39.45
Luis Manuel VALVERDE-CEDILLO, C. LÓPEZ-GARCÍA, Jorge SANTIAGO-AMAYA
{"title":"Design and development of a comprehensive renewable energy system","authors":"Luis Manuel VALVERDE-CEDILLO, C. LÓPEZ-GARCÍA, Jorge SANTIAGO-AMAYA","doi":"10.35429/ejm.2023.31.14.39.45","DOIUrl":"https://doi.org/10.35429/ejm.2023.31.14.39.45","url":null,"abstract":"The electrical energy supplied by the Federal Electricity Commission (CFE) in Mexico suffers from disconnections due to failures due to overloads, short circuits or vandalism; leaving the user without this service for minutes or even for a few hours. Through the analysis by Quality Functions Deployment (QFD) we proceeded to the development of this work, the performance of a vertical position wind generator is designed and analyzed by software for the estimation of initial parameters, which due to its design Savonius multi-blade type makes it ideal for areas with very slow winds and speeds below 10 m/s. In order to meet the generation and energy saving needs, the implementation of a park of three vertical generators that will have the capacity to supply electrical energy to homes, offices or luminaries in public parks proposed. Finally, it is an opportunity to achieve one of the challenges set out in the 2030 sustainable development agenda and thereby guarantee one of the main objectives, which is universal access to energy services.","PeriodicalId":40131,"journal":{"name":"Revista Ecorfan","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135081655","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
Innovation in distance education 远程教育的创新
Revista Ecorfan Pub Date : 2023-09-30 DOI: 10.35429/ejs.2023.19.10.1.6
Regis Daisy ESCAMILLA, Bahena Elizabeth MARTÍNEZ
{"title":"Innovation in distance education","authors":"Regis Daisy ESCAMILLA, Bahena Elizabeth MARTÍNEZ","doi":"10.35429/ejs.2023.19.10.1.6","DOIUrl":"https://doi.org/10.35429/ejs.2023.19.10.1.6","url":null,"abstract":"The implementation of distance courses has allowed knowledge to reach a greater number of students immediately, in addition to this, it allows us to access information at the convenience of the participants, so the specific schedules, which promote a greater opening in the accesses and the way in which knowledge can be generated, is not married to a place, a time or a style, which is why it is increasingly necessary to be able to implement strategies that In addition, they generate real knowledge and a substantial use of the contents that are being shown, together with a wide range of strategies that range from the topics themselves, the reinforcement of activities through innovative technological tools and feedback and/or relevant evaluations to indicate the level of achievement that the student had within the specified period and that will allow him to continue advancing to reach his goal. Objectives, Methodology. The main objective of carrying out this work is to show the importance in the implementation of distance courses with the use of technological innovation tools, the advantages of students learning according to their needs and the advantages of having these important tools. support in educational instruction; In addition to presenting a representative sample on the application of a research technique that allows us to observe -by its results- that distance education has had a beneficial impact even more with the use of technological innovation tools in terms of promoting this instruction. in Higher Education Schools. Contribution. It seeks to demonstrate in a broad way, that encouraging students who cannot attend school in the required times, to seek education online, can help them obtain a degree without having to put aside meeting their needs through a job, distance education, will allow them to satisfy their self-realization needs and they will be able to collaborate significantly in the achievement of their medium-term objectives.","PeriodicalId":40131,"journal":{"name":"Revista Ecorfan","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135081835","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
Training perspectives in the new labor normality 新劳动常态下的培训视角
Revista Ecorfan Pub Date : 2023-09-30 DOI: 10.35429/ejm.2023.31.14.24.38
Karina Concepción GONZÁLEZ-HERRERA, Stephany Giselle MARTÍN-SÁNCHEZ
{"title":"Training perspectives in the new labor normality","authors":"Karina Concepción GONZÁLEZ-HERRERA, Stephany Giselle MARTÍN-SÁNCHEZ","doi":"10.35429/ejm.2023.31.14.24.38","DOIUrl":"https://doi.org/10.35429/ejm.2023.31.14.24.38","url":null,"abstract":"Training is a process that allows the specialization of the personnel and the support of the activities impregnated in the work areas, guaranteeing improvements in the results. The object of study consisted of determining the training perspective based on the new ways of working considering the organizational climate present in the Covid-19 period, for the design of content according to the needs of employees and companies. It was a quantitative study using the relationship of variables, in 6 dimensions (quality of working life, work design, interpersonal relationships, leadership, performance management and participation management) with a classified assessment on the Likert scale, which was addressed to the economically active-occupied population (PEA-O), with the study sample of 234 people, covering 94%. With the results, the proposals for the training of the personnel who worked from home were determined, seeking a social and economic impact of collaborating and that would stimulate an improvement in the organization to achieve the objectives established during the pandemic, the main one being the prevalence in the market.","PeriodicalId":40131,"journal":{"name":"Revista Ecorfan","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135081657","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
Analysis of the productivity of the construction sector in terrestrial communication routes, of the Central region of the state of Tabasco 塔巴斯科州中部地区地面通信线路建设部门的生产力分析
Revista Ecorfan Pub Date : 2023-09-30 DOI: 10.35429/ejm.2023.31.14.8.18
Hortensia ELISEO-DANTÉS, Leticia LÓPEZ-VALDIVIESO, Gloria PÉREZ-GARMENDIA, Juana María MOREJÓN-SÁNCHEZ
{"title":"Analysis of the productivity of the construction sector in terrestrial communication routes, of the Central region of the state of Tabasco","authors":"Hortensia ELISEO-DANTÉS, Leticia LÓPEZ-VALDIVIESO, Gloria PÉREZ-GARMENDIA, Juana María MOREJÓN-SÁNCHEZ","doi":"10.35429/ejm.2023.31.14.8.18","DOIUrl":"https://doi.org/10.35429/ejm.2023.31.14.8.18","url":null,"abstract":"The study of productivity in the different sectors of the industry is an advance for the development of the same, which allows being a notable factor in developed or developing countries in the current globalized world. For the above mentioned, the present research allows to know the effect of the construction sector and the subsector of terrestrial communication routes, as well as the importance in the accessibility to the different communities and how this helps to strengthen the different branches of the economy. The methodology applied for the research was structural analysis (MICMAC), which allowed a search and selection of factors that directly affect the subject of study. As a result, 15 determining factors for productivity in the sector of study were classified and the level of impact was determined with the help of experts from organizations related to the same sectors, thus creating a real and comprehensive scenario of the situation and giving way to the construction of a development model for the region.","PeriodicalId":40131,"journal":{"name":"Revista Ecorfan","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135081662","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 creativity and innovation in the subdirectorate of planning and liaison of a higher education institution in the State of Veracruz, Mexico 墨西哥韦拉克鲁斯州一所高等教育机构规划和联络分理事会的创造力和革新的影响
Revista Ecorfan Pub Date : 2023-09-30 DOI: 10.35429/ejm.2023.31.14.19.23
Jazmín BALDERRABANO-BRIONES, Youssef UTRERA-VELEZ
{"title":"Impact of creativity and innovation in the subdirectorate of planning and liaison of a higher education institution in the State of Veracruz, Mexico","authors":"Jazmín BALDERRABANO-BRIONES, Youssef UTRERA-VELEZ","doi":"10.35429/ejm.2023.31.14.19.23","DOIUrl":"https://doi.org/10.35429/ejm.2023.31.14.19.23","url":null,"abstract":"The Impact of Creativity and Innovation in the Planning and Linkage Subdirectorate of a Higher Education Institution in the State of Veracruz, Mexico, has as its main purpose to collect information regarding the area of Creativity and Innovation, studying its impact to prepare a proposal of a development model. Through three instruments that measure the Creativity and Innovation of the different departments that make up the Planning and Liaison Subdirectorate, we can assess analysis, open-mindedness, communication, empathy to mention some of the skills that can be rediscovered or come to light with the support of this series of questions that are posed exclusively for the well-being of the Institution. The objective of the research is to provide the Institution with the information resulting from the diagnosis, which allows addressing each of the indicators, receiving feedback from the five departments that make up the Planning and Liaison Subdirectorate. Contributing to continuous improvement, through the planning of strategies that contribute to the fulfillment of the organization's objectives.","PeriodicalId":40131,"journal":{"name":"Revista Ecorfan","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135081664","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
Reception and management of agrochemical containers in the CATs 农用化学品容器的接收和管理
Revista Ecorfan Pub Date : 2023-08-30 DOI: 10.35429/ejm.2023.31.14.1.7
Raquel OCHOA-ORNELAS, Alberto GUDIÑO-OCHOA
{"title":"Reception and management of agrochemical containers in the CATs","authors":"Raquel OCHOA-ORNELAS, Alberto GUDIÑO-OCHOA","doi":"10.35429/ejm.2023.31.14.1.7","DOIUrl":"https://doi.org/10.35429/ejm.2023.31.14.1.7","url":null,"abstract":"The handling of agrochemical containers is subject to compliance with current laws for the operation and certification of systems that reduce contamination risks. The objective of this research is to design a computer system that allows greater control in the Temporary Collection Centers (CAT), from the reception of containers to the exit of waste to destination companies. For the development of the project, an exhaustive analysis was carried out in each of the processes. Requirements gathering techniques and the design of diagrams will be applied to detail the context of the processes using the Unified Modeling Language (UML). The database was designed in MySQL and the programming was carried out in Visual Studio 2023. Results were obtained in various reports and statistics that allow managing the capacity of the CATs and having a reliable record of the origin of the containers, as well as a control and follow-up in the exit and delivery of waste to final destination companies. The project is a challenge of environmental impact and social responsibility that requires the intervention of different sectors, public and private, as well as the direct collaboration of agricultural producers.","PeriodicalId":40131,"journal":{"name":"Revista Ecorfan","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136240254","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
Analysis of learning styles in engineering students after the COVID-19 pandemic 新冠肺炎疫情后工科学生学习风格分析
Revista Ecorfan Pub Date : 2023-06-30 DOI: 10.35429/ejm.2023.30.14.20.25
Pedro Alfonso Guadal ORTIZ-SANCHEZ, Patricia Guadalupe SÁNCHEZ-ITURBE, Pedro Tomás ORTIZ-Y OJEDA
{"title":"Analysis of learning styles in engineering students after the COVID-19 pandemic","authors":"Pedro Alfonso Guadal ORTIZ-SANCHEZ, Patricia Guadalupe SÁNCHEZ-ITURBE, Pedro Tomás ORTIZ-Y OJEDA","doi":"10.35429/ejm.2023.30.14.20.25","DOIUrl":"https://doi.org/10.35429/ejm.2023.30.14.20.25","url":null,"abstract":"The research was carried out with the objective of knowing aspects that are interesting for researchers about learning; such as the analysis of the learning styles currently in the post-pandemic period, manifested by students of different degrees. Identifying and analyzing learning styles and relating them to current teaching practices will allow applying teaching strategies that could reduce the current high dropout and failure rates. The results obtained show the trends by educational institution, by semester and by career. Significant differences were found in the results in the active style between schools; by semester, most of the students of the initial semesters are visual and sensitive, in later semesters, there is a tendency to be intuitive and by career they show a tendency to be sensitive and visual; As a conclusion, a student can have different learning styles, but in general they have a certain affinity for a learning profile. Objective. Identify and analyze the current learning styles in Engineering students, derived from the abrupt changes in study modalities that occurred due to the Covid 19 pandemic. Methodology. A validated survey (Cronbach's : 0.872) was applied to students of Electrical Engineering, Electronic Engineering and Biochemical Engineering. The following learning styles were considered to be identified and analyzed: active-reflexive, sensitive-intuitive, visual-verbal, and sequential-global. A scale of dichotomous variables was chosen, they were valued according to the proposal of Felder and Silverman (Felder and Silverman, 1988), the answers were set in the categories of learning styles proposed by the author in active or reflective, sensitive or revealing, visual or verbal, and sequential or global, were quantified, tabulated, and analysis of variance (ANOVA) for parametric samples. Contribution. This research made it possible to identify the learning styles of undergraduate students in the post-pandemic period, to find out the current learning preferences, which can be applied to propose, where appropriate, the necessary adjustments within the teaching strategies of teachers interested in reduce the current high rate of failure and dropout.","PeriodicalId":40131,"journal":{"name":"Revista Ecorfan","volume":"126 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136300328","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
Trajectory of public private associations. Case: wastewater treatment plant "Agua Prieta" - Jalisco 公私协会的发展轨迹。案例:污水处理厂“Agua Prieta”-哈利斯科州
Revista Ecorfan Pub Date : 2023-06-30 DOI: 10.35429/ejm.2023.30.14.26.42
Alba Lucia MORENO-ORTIZ,, María Jesica ZABALA-PINEDA, Oscar Aguilar AGUILAR-JUÁREZ
{"title":"Trajectory of public private associations. Case: wastewater treatment plant \"Agua Prieta\" - Jalisco","authors":"Alba Lucia MORENO-ORTIZ,, María Jesica ZABALA-PINEDA, Oscar Aguilar AGUILAR-JUÁREZ","doi":"10.35429/ejm.2023.30.14.26.42","DOIUrl":"https://doi.org/10.35429/ejm.2023.30.14.26.42","url":null,"abstract":"Objectives: Public-private associations (PPPs), for the government sector, an opportunity to take advantage of the experience and efficiency of the private sector to improve the representation of services and develop the necessary infrastructures for economic and social development. PPPs generally involve large-scale projects, but unfortunately some sectors, such as water management, exclude the opinion of experts, giving rise to monopolies that greatly benefit the private sector, even excluding them from responsibilities by not fully resolving the problem for which they were created. contracted, the costs being absorbed by the public sector. Methodology: Confirming the success of PPP participation in works still in operation is premature, but an analysis of the current results is made, taking as a case study, the \"Agua Prieta\" Wastewater Treatment Plant (PTAR). Contribution: The results show that the collaboration of community groups in carrying out a participatory diagnosis and having follow-up and evaluation mechanisms to monitor the performance of the private partner, are actions that further improve the chances of success of the project; On the other hand, competition and the adequate selection of private partners represent the biggest failure factor in the implementation of PPPs.","PeriodicalId":40131,"journal":{"name":"Revista Ecorfan","volume":"252 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136300327","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
Proposal to improve the organizational performance of SMEs in Ciudad Obregón, Sonora 提高城市中小企业组织绩效的建议Obregón,索诺拉
Revista Ecorfan Pub Date : 2023-06-30 DOI: 10.35429/ejm.2023.30.14.43.54
Elba Myriam NAVARRO-ARVIZU, Beatriz Alicia LEYVA-OSUNA, María del Carmen VÁSQUEZ-TORRES, Nora Edith GONZÁLEZ-NAVARRO
{"title":"Proposal to improve the organizational performance of SMEs in Ciudad Obregón, Sonora","authors":"Elba Myriam NAVARRO-ARVIZU, Beatriz Alicia LEYVA-OSUNA, María del Carmen VÁSQUEZ-TORRES, Nora Edith GONZÁLEZ-NAVARRO","doi":"10.35429/ejm.2023.30.14.43.54","DOIUrl":"https://doi.org/10.35429/ejm.2023.30.14.43.54","url":null,"abstract":"The present study is of a qualitative and descriptive approach, where a diagnosis was made to the administrative process of SMEs in the locality, and based on the results obtained, proposals for improvement to their organizational performance were prepared, contributing to the increase in the probabilities of success and permanence in the market, thus fulfilling the established objective and responding to the question posed: How to improve the organizational performance of local SMEs to increase their chances of success and permanence in the market? As a contribution of this research is to provide support to local SMEs to solve problems and/or areas of opportunity detected, and in this way make proposals for improvement that are precise, timely, adequate and focused on the findings obtained, impacting in the same way on the economic development of the region, since when these proposals are implemented, SMEs are strengthened, improving services offered to clients, in addition to minimizing risks and possibilities of failure.","PeriodicalId":40131,"journal":{"name":"Revista Ecorfan","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136300329","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
Cost-benefit analysis of the best combination of organic and inorganic sources to supply zinc deficiency in pecan (Carya illinoinensis [wangenh] k. Koch) 有机与无机资源最佳组合补锌的成本效益分析
Revista Ecorfan Pub Date : 2023-06-30 DOI: 10.35429/ejm.2023.30.14.55.59
Fabiola Iveth ORTEGA-MONTES, Héctor Osbaldo RUBIO-ARIAS, Fernando CLEMENTE-SANCHEZ, Luisa Patricia URANGA-VALENCIA
{"title":"Cost-benefit analysis of the best combination of organic and inorganic sources to supply zinc deficiency in pecan (Carya illinoinensis [wangenh] k. Koch)","authors":"Fabiola Iveth ORTEGA-MONTES, Héctor Osbaldo RUBIO-ARIAS, Fernando CLEMENTE-SANCHEZ, Luisa Patricia URANGA-VALENCIA","doi":"10.35429/ejm.2023.30.14.55.59","DOIUrl":"https://doi.org/10.35429/ejm.2023.30.14.55.59","url":null,"abstract":"Zinc (Zn) is considered a trace element; however, this element is scarce in calcareous soils, so it is necessary to make applications to optimize performance. The objective of this study was to analyze the cost-benefit relationship of the best combination of applying organic and inorganic sources of zinc in the cultivation of walnut (Carya illinoinensis [Wangenh] K. Koch) that maximizes the yield of pecan nut. Prior to the cost-benefit analysis, five Zn application treatments were evaluated; a control treatment (T1-no application); T2 was the application of 4.5 L H2SO4 + 3 kg ZnSO4 in 100 L H2O; T3 consisted of the application of 3 Kg ZnSO4 in 20 L of worm leachate measured at 100 L of H2O; T4 was with the addition of 3 kg ZnSO4 mixed in 25 kg of solid vermicompost; and T5 was the addition of 3 Kg ZnSO4 in 25 kg of compost. A total of two applications per treatment were made. The parameters evaluated were the concentration of nitrogen (N), phosphorus (P), potassium (K), calcium (Ca), magnesium (Mg), sodium (Na), iron (Fe), copper (Cu), manganese (Mn) and zinc (Zn) in the leaf tissue and the yield in kilograms of walnut (kg ha-1). The highest nut yield was obtained with T2 with 1,400 kg ha-1 compared to 933 kg ha-1 that were harvested in the control treatment; that is to say, a differential of 467 kg of walnut. A b/c ratio of 1.2861 was calculated for the best biological treatment, which was T2.","PeriodicalId":40131,"journal":{"name":"Revista Ecorfan","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136300330","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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