Computer Applications in Engineering Education最新文献

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Theory and practice of BIM skills of construction management professional based on conceive–design–implement–operate engineering teaching mode 基于 "构思-设计-实施-操作 "工程教学模式的建筑工程管理专业BIM技能理论与实践研究
IF 2.9 3区 工程技术
Computer Applications in Engineering Education Pub Date : 2024-02-02 DOI: 10.1002/cae.22719
Nan Li, Yiming Han, Feng Gao
{"title":"Theory and practice of BIM skills of construction management professional based on conceive–design–implement–operate engineering teaching mode","authors":"Nan Li,&nbsp;Yiming Han,&nbsp;Feng Gao","doi":"10.1002/cae.22719","DOIUrl":"10.1002/cae.22719","url":null,"abstract":"<p>Building information modeling (BIM), as the core technology for digital transformation and development of the construction industry, is in vigorous development. This study analyzes the current situation of teaching BIM to construction management professionals in universities. Based on the CDIO (conceive–design–implement–operate) engineering education concept, a new teaching system of BIM technology for construction management professionals is proposed. It is composed of a diversified teaching mode of implanting BIM technology in professional courses, establishing a school–enterprise cooperation platform, expert linkage, BIM team construction, skill competition, and transformation of scientific research achievements, and provides a reference for the reform of practical teaching. It is proved that this education mode improves students' learning enthusiasm, engineering practice ability, solidarity and ability to solve practical engineering problems, cultivates outstanding talents in BIM technology, drives students' employment, and provides innovative talents in BIM technology needed for the development of the construction industry.</p>","PeriodicalId":50643,"journal":{"name":"Computer Applications in Engineering Education","volume":"32 3","pages":""},"PeriodicalIF":2.9,"publicationDate":"2024-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139667956","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Visualizing acoustic levitation with COMSOL Multiphysics and a simple experimental setup 利用 COMSOL Multiphysics 和简单实验装置实现声悬浮可视化
IF 2.9 3区 工程技术
Computer Applications in Engineering Education Pub Date : 2024-02-01 DOI: 10.1002/cae.22718
Francisco M. Muñoz-Pérez, Juan C. Castro-Palacio, Marcos H. Giménez, Juan A. Monsoriu
{"title":"Visualizing acoustic levitation with COMSOL Multiphysics and a simple experimental setup","authors":"Francisco M. Muñoz-Pérez,&nbsp;Juan C. Castro-Palacio,&nbsp;Marcos H. Giménez,&nbsp;Juan A. Monsoriu","doi":"10.1002/cae.22718","DOIUrl":"10.1002/cae.22718","url":null,"abstract":"<p>We present a new virtual laboratory developed with COMSOL multiphysics for the simulation of an acoustic levitator, as well as a three-dimensional (3D) printed experimental setup. Our software application simulates the acoustic pressure field and its interaction with a set of particles. Students can interact with the system having the possibility to change the frequency and distance parameters between transducers in real time. We have also developed and shared for free use the 3D printing design files for the construction of the necessary components for the acoustic levitator, as well as the instructions for its experimental implementation. The experimental results are contrasted, along with those from the virtual laboratory, providing students with useful tools to understand and interpret the acoustic phenomenon in question.</p>","PeriodicalId":50643,"journal":{"name":"Computer Applications in Engineering Education","volume":"32 3","pages":""},"PeriodicalIF":2.9,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cae.22718","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139668282","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Research and innovation of engineering simulation practice teaching platform based on the civil engineering talent training 基于土木工程人才培养的工程仿真实践教学平台研究与创新
IF 2.9 3区 工程技术
Computer Applications in Engineering Education Pub Date : 2024-01-21 DOI: 10.1002/cae.22713
Nan Li, Mengjin Gao, Shuaijie Liu, Yiming Han, Yajun Xi, Feng Gao
{"title":"Research and innovation of engineering simulation practice teaching platform based on the civil engineering talent training","authors":"Nan Li,&nbsp;Mengjin Gao,&nbsp;Shuaijie Liu,&nbsp;Yiming Han,&nbsp;Yajun Xi,&nbsp;Feng Gao","doi":"10.1002/cae.22713","DOIUrl":"10.1002/cae.22713","url":null,"abstract":"<p>The traditional experimental teaching and practical teaching cannot meet the requirements of experimental practice teaching under the new situation, and virtual simulation technology has made great progress in teaching. Based on this, a new teaching mode—engineering simulation practices teaching platform—is proposed. In this regard, the methodology research is carried out, and the implementation scheme is proposed. The teaching design, implementation, and improvement have received good application results, which effectively improve the training level of applied talents for civil engineering majors in colleges and universities.</p>","PeriodicalId":50643,"journal":{"name":"Computer Applications in Engineering Education","volume":"32 3","pages":""},"PeriodicalIF":2.9,"publicationDate":"2024-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139516966","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Introduction to the modeling of complex chemical reaction equilibrium using gPROMS® and GAMS® 使用 gPROMS® 和 GAMS® 建立复杂化学反应平衡模型介绍
IF 2.9 3区 工程技术
Computer Applications in Engineering Education Pub Date : 2024-01-21 DOI: 10.1002/cae.22714
Raoudha Garma, Doniazed Sioud, Housam Binous, Ahmed Bellagi
{"title":"Introduction to the modeling of complex chemical reaction equilibrium using gPROMS® and GAMS®","authors":"Raoudha Garma,&nbsp;Doniazed Sioud,&nbsp;Housam Binous,&nbsp;Ahmed Bellagi","doi":"10.1002/cae.22714","DOIUrl":"10.1002/cae.22714","url":null,"abstract":"<p>In the present paper several aspects of the simulation of complex chemical equilibrium are discussed, using two research and educational software: gPROMS® and GAMS®. All computations are performed to boost the understanding of chemical engineering students, undergraduate, and graduate, of the complex concepts behind both thermo-chemical processes and optimization techniques. Four case studies with varying levels of difficulty illustrate the proposed methodology and robustness of the modeling systems:\u0000\u0000 </p><p>Our results indicate that the use of optimization tools offered bygPROMS® and GAMS®software are useful and efficient tools to calculate the chemical and phase equilibrium by minimizing the Gibbs energy, provided that adequate initial guesses are used. Furthermore, the computational time spent in the calculations was generally quite short. The obtained equilibrium compositions are benchmarked using the ubiquitous process simulators: ASPEN-Plus® and/or ASPEN-Hysys® as well as data available from the open literature. We obtained excellent agreement between our results and their counterpart obtained using ASPEN-Plus®. In the last part of this manuscript, authors share their experience in supervising senior term projects on the subject. A questionnaire was used to collect qualitative and quantitative feedback from the nine students involved in the projects. Their responses to a questionnaire focused on the chemical engineering thermodynamics theory as well as software usage during their investigations. This questionnaire demonstrates that students can overcome mathematical complexity by either using mathematical software or equivalent modeling systems (e.g., \u0000<span>Matlab</span>®, \u0000<span>Mathematica<sup>©</sup></span>, gPROMS®, and GAMS®).</p>","PeriodicalId":50643,"journal":{"name":"Computer Applications in Engineering Education","volume":"32 3","pages":""},"PeriodicalIF":2.9,"publicationDate":"2024-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139516830","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Examining the impact of head-mounted augmented reality on learning engineering drawings: A case study for three-view drawing 研究头戴式增强现实技术对工程制图学习的影响:三视图绘制案例研究
IF 2.9 3区 工程技术
Computer Applications in Engineering Education Pub Date : 2024-01-18 DOI: 10.1002/cae.22716
Qingshu Yuan, Kailiang Shou, Jin Xu, Zhengwei Yao, Zhigeng Pan
{"title":"Examining the impact of head-mounted augmented reality on learning engineering drawings: A case study for three-view drawing","authors":"Qingshu Yuan,&nbsp;Kailiang Shou,&nbsp;Jin Xu,&nbsp;Zhengwei Yao,&nbsp;Zhigeng Pan","doi":"10.1002/cae.22716","DOIUrl":"10.1002/cae.22716","url":null,"abstract":"<p>As the cornerstone of spatial geometry and engineering drawings, three-view drawing lays the necessary foundation for students to learn geography, graphics, industrial design, geographic information science, and so forth. However, teaching three-view drawing can be challenging due to its abstraction. Currently, desktop and handheld augmented reality (AR) systems are widely applied to three-view teaching. However, existing systems suffer from visuo-tactile inconsistency and contain unfriendly interactions, resulting in a poor learning experience. In this paper, head-mounted AR is introduced for the first time in the teaching of three-view drawing. A system was designed for learning three-view drawing to facilitate students' free exploration and learning in lessons. Additionally, a comparative experiment was designed and conducted to investigate whether multimodal interaction and head-mounted AR help students to better understand the relationship between concrete three-dimensional (3D) objects and abstract two-dimensional planes and the impact on subjective perceptions. The results demonstrated that the proposed system significantly improved learning performance. Furthermore, the proposed system heightened students' interest in learning, made reproducing 3D structures more intuitive, and students were more willing to use such systems in their future studies.</p>","PeriodicalId":50643,"journal":{"name":"Computer Applications in Engineering Education","volume":"32 3","pages":""},"PeriodicalIF":2.9,"publicationDate":"2024-01-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139516835","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
EVERSYS: Efficient exam versioning tool for linear circuits and other problem-based subjects EVERSYS:线性电路和其他基于问题的科目的高效考试版本工具
IF 2.9 3区 工程技术
Computer Applications in Engineering Education Pub Date : 2024-01-18 DOI: 10.1002/cae.22715
María Asunción Vicente, César Fernández Peris, Miguel O. Martínez
{"title":"EVERSYS: Efficient exam versioning tool for linear circuits and other problem-based subjects","authors":"María Asunción Vicente,&nbsp;César Fernández Peris,&nbsp;Miguel O. Martínez","doi":"10.1002/cae.22715","DOIUrl":"10.1002/cae.22715","url":null,"abstract":"<p>Exam versioning is a widely used approach to prevent cheating during exams, but it can increase the workload for lecturers in terms of exam preparation and correction. Automated exam versioning can help reduce this workload and minimize errors in correction. This article presents the EVERSYS platform, which is focused on linear circuits but can be applied to other engineering fields. An exam problem is described as a circuit schema, a set of component values, and a set of questions to be answered. The EVERSYS platform allows lecturers to easily create exam versions with high variability, including different schemas, component values, and question sets. The platform is based on the MATLAB/Octave programming language and HTML document descriptions. Creating a multiversion exam is straightforward, involving the adaptation of a set of predefined MATLAB scripts and modification of the HTML format if necessary. A set of example exams is provided as well as the complete platform source code. The platform was tested during a 2021–2022 compulsory course on linear circuits at a Spanish University. The results indicated that the platform significantly reduced the time required for exam preparation and correction, and there was no statistically significant difference in student performance across different exam versions. Students reported high levels of satisfaction with the platform, and almost all agreed that it effectively prevents cheating during exams.</p>","PeriodicalId":50643,"journal":{"name":"Computer Applications in Engineering Education","volume":"32 3","pages":""},"PeriodicalIF":2.9,"publicationDate":"2024-01-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139516960","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Fostering computer programming and digital skills development: An experimental approach 促进计算机编程和数字技能发展:实验方法
IF 2.9 3区 工程技术
Computer Applications in Engineering Education Pub Date : 2024-01-13 DOI: 10.1002/cae.22711
Christian B. Omeh, Chijioke J. Olelewe, Emmanuel C. Nwangwu
{"title":"Fostering computer programming and digital skills development: An experimental approach","authors":"Christian B. Omeh,&nbsp;Chijioke J. Olelewe,&nbsp;Emmanuel C. Nwangwu","doi":"10.1002/cae.22711","DOIUrl":"10.1002/cae.22711","url":null,"abstract":"<p>Available records of computer programming results from the universities in southeast Nigeria for the period under review (2016–2020) show that 70% of the students marginally passed the course. This, therefore, raises a concern to re-examine the instructional strategy used in the teaching and learning process, hence the adoption of innovative pedagogy that involved the use of digital tools like Google Classroom and Google Meet in their instructional delivery process of a computer programming course. This study adopted quasi-experimental research design involving intact classes with a nonequivalent group. Total population sampling technique was used to select all the 152 second-year computer education students made up of 60 males and 92 females drawn from the three private universities in Southeast Nigeria that offer computer programming. Data was collected using computer achievement test, digital skill development scale and engagement level scale. The findings of the study showed that students' academic achievement and level of engagement increased significantly in a computer programming course. Also, digital skills development and self-efficacy in the experimental group were higher than in the control group. Implementing innovative teaching strategies helped to facilitate the timely development of digital skills required by students to attain sufficient learner engagement in the learning process. It was recommended that computer educators should be encouraged to adopt innovative teaching techniques that blend with Classroom, Google Meet and MS Teams, among others to influence students' active engagement in the learning process.</p>","PeriodicalId":50643,"journal":{"name":"Computer Applications in Engineering Education","volume":"32 2","pages":""},"PeriodicalIF":2.9,"publicationDate":"2024-01-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139482006","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Blended learning in the engineering field: A systematic literature review 工程领域的混合式学习:系统文献综述
IF 2.9 3区 工程技术
Computer Applications in Engineering Education Pub Date : 2024-01-07 DOI: 10.1002/cae.22712
Roberto Sala, Antonio Maffei, Fabiana Pirola, Fredrik Enoksson, Sandi Ljubić, Arian Skoki, Joseph P. Zammit, Amberlynn Bonello, Primož Podržaj, Tena Žužek, Paolo C. Priarone, Dario Antonelli, Giuditta Pezzotta
{"title":"Blended learning in the engineering field: A systematic literature review","authors":"Roberto Sala,&nbsp;Antonio Maffei,&nbsp;Fabiana Pirola,&nbsp;Fredrik Enoksson,&nbsp;Sandi Ljubić,&nbsp;Arian Skoki,&nbsp;Joseph P. Zammit,&nbsp;Amberlynn Bonello,&nbsp;Primož Podržaj,&nbsp;Tena Žužek,&nbsp;Paolo C. Priarone,&nbsp;Dario Antonelli,&nbsp;Giuditta Pezzotta","doi":"10.1002/cae.22712","DOIUrl":"10.1002/cae.22712","url":null,"abstract":"<p>Blended Learning (BL) is defined as a combination of face-to-face and digital activities that, in recent years, has been adopted more and more frequently by Higher Educational Institutions (HEIs). In the engineering field, the adoption of BL allows creating challenging situations for students with industry-like problems to foster the acquisition of advanced problem-solving skills. Thus, it can be used to enhance traditional learning by enriching it with new aspects, allowing to update the Intended Learning Outcomes traditionally defined by teachers. Although prior coronavirus disease 2019 (COVID-19) teachers had the time to prepare and programme the transition to BL, during the pandemic they had to abruptly move to the full digital delivery of the content, requiring technological and organizational adaptation, as well as change in the content teaching and assessment methods. Through a systematic literature review, this paper aims to understand how BL has been implemented in the engineering field by HEIs, discussing if and how the learning expectations of teachers (evaluated through Bloom's Taxonomy) change when using different mixes of face-to-face and digital activities and when the target audience changes. More specifically, the investigation addresses how content and learning expectations are split and set in face-to-face and digital settings. Additionally, the interest is towards understanding how COVID-19 impacted the adoption of BL, not only during the pandemic but also after.</p>","PeriodicalId":50643,"journal":{"name":"Computer Applications in Engineering Education","volume":"32 3","pages":""},"PeriodicalIF":2.9,"publicationDate":"2024-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cae.22712","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139397921","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Teaching practice of wind turbine practical training based on virtual teaching platform 基于虚拟教学平台的风机实训教学实践
IF 2.9 3区 工程技术
Computer Applications in Engineering Education Pub Date : 2024-01-03 DOI: 10.1002/cae.22710
Yin Xiaoju, Pan Xue, Lu Shiyu, Du Zhiliang, Zhao Tingting, Guan Xin, Wang Shuaijie
{"title":"Teaching practice of wind turbine practical training based on virtual teaching platform","authors":"Yin Xiaoju,&nbsp;Pan Xue,&nbsp;Lu Shiyu,&nbsp;Du Zhiliang,&nbsp;Zhao Tingting,&nbsp;Guan Xin,&nbsp;Wang Shuaijie","doi":"10.1002/cae.22710","DOIUrl":"10.1002/cae.22710","url":null,"abstract":"<p>The wind turbine components are bulky and costly. Undergraduate students majoring in wind power cannot achieve professional skills training in the laboratory. To deepen the understanding of wind turbine installation, a virtual simulation platform for the teaching exploration of wind turbine assembly practice course is developed. The goal of the platform is to build a virtual simulation installation process of each huge component of the wind turbine through the model, so that students can experience the experiential learning of the installation of the wind turbine, and experience the learning opportunities of the visualization of parts and the operability of the assembly process, so as to lay the foundation of wind power engineering practice for undergraduate students. The teaching of simulation working process based on wind turbine assembly process and performance characteristics is discussed. The results and questionnaires of students in three classes are counted. The teaching experiment shows that the average score of the experimental group is 4.5 points higher than that of the control group. This method can significantly improve students' interest in learning and academic performance, improve students' wind turbine assembly ability, and meet the actual needs of students majoring in wind power. The research shows that the platform can be effectively used as a practical teaching tool for wind power students.</p>","PeriodicalId":50643,"journal":{"name":"Computer Applications in Engineering Education","volume":"32 2","pages":""},"PeriodicalIF":2.9,"publicationDate":"2024-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139376289","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Digital visualization in graduate transport phenomena 毕业生运输现象的数字可视化
IF 2.9 3区 工程技术
Computer Applications in Engineering Education Pub Date : 2024-01-03 DOI: 10.1002/cae.22709
Michael Rother
{"title":"Digital visualization in graduate transport phenomena","authors":"Michael Rother","doi":"10.1002/cae.22709","DOIUrl":"10.1002/cae.22709","url":null,"abstract":"<p>The use of contour flood plots and color digital movies is investigated for teaching fluid mechanics, heat transfer, and mass transfer at the first-year graduate student level. The color visualizations are intended to not only stimulate curiosity but also encourage enthusiasm and determination in learning difficult material. Although there is a significant amount of finite-difference material, the focus is on analytical solutions. In particular, the mathematical problems involve error functions and Fourier series, which generally prove uninteresting and unpopular. Students are encouraged to produce the visualizations themselves, in addition to being provided with digital results in various forms. Excel can be used to generate both the analytical and finite difference calculations, but Python or another computer language can be employed. While software, such as Matplotlib with Python, Gnuplot, or Tecplot, can create excellent contour flood plots, results from Excel are also good, and Powerpoint will produce movies from individual frames. Student response is positive, although quantifying their reaction is difficult based on the small class sizes. Not surprisingly, the use of color appeals to students and adds to their interest. In addition, students claim increased understanding with contour plots and movies, but the visualizations should be used in conjunction with more traditional graphs, perhaps augmented with consistent use of color. However, the impact on motivation due to color presentation is harder to establish. Interestingly, both graduate and senior undergraduate students showed about equal preference for the rainbow and viridis color palettes.</p>","PeriodicalId":50643,"journal":{"name":"Computer Applications in Engineering Education","volume":"32 2","pages":""},"PeriodicalIF":2.9,"publicationDate":"2024-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cae.22709","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139375869","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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