Fast and accurate transient stability analysis is crucial to power system operation.With high penetration level of wind power resources,practical dynamic security region(PDSR)with hyper plane expression has outstandin...Fast and accurate transient stability analysis is crucial to power system operation.With high penetration level of wind power resources,practical dynamic security region(PDSR)with hyper plane expression has outstanding advantages in situational awareness and series of optimization problems.The precondition of obtaining accurate PDSR boundary is to locate sufficient points around the boundary(critical points).Therefore,this paper proposes a space division and Wasserstein generative adversarial network with gra-dient penalty(WGAN-GP)based fast generation method of PDSR boundary.First,the typical differential topological characterizations of dynamic security region(DSR)provide strong theoretical foundation that the interior of DSR is hole-free and the boundaries of DSR are tight and knot-free.Then,the space division method is proposed to calculate critical operation area where the PDSR boundary is located,tremen-dously compressing the search space to locate critical points and improving the confidence level of boundary fitting result.Furthermore,the WGAN-GP model is utilized to fast obtain large number of criti-cal points based on learning the data distribution of the small training set aforementioned.Finally,the PDSR boundary with hyperplanes is fitted by the least square method.The case study is tested on the Institute of Electrical and Electronics Engineers(IEEE)39-bus system and the results verify the accuracy and efficiency of the proposed method.展开更多
Practical jurisprudence is a completely new proposition in legal education and research.The introduction of the concept of“practical jurisprudence”in the teaching of the Civil Procedure Law of the People’s Republic...Practical jurisprudence is a completely new proposition in legal education and research.The introduction of the concept of“practical jurisprudence”in the teaching of the Civil Procedure Law of the People’s Republic of China(the“Civil Procedure Law”)is a major innovation in terms of values and methodology.Practical jurisprudence focuses more on practical issues,Chinese characteristics,and major needs,while strengthening the practical nature of the Civil Procedure Law.China’s traditional education system for juris masters(for non-law graduates)(“non-law JMs”)emphasizes the development of foundational legal theoretical knowledge.However,it has not fully achieved its goal of cultivating interdisciplinary and practical legal professionals.Therefore,the traditional education system for the Civil Procedure Law needs reconstruction and supplementation through the practical jurisprudence teaching system in the following areas:(a)System composition:The focus should be on the eight tertiary subsystems under the two secondary subsystems—“the knowledge teaching system and the practical teaching system”of practical jurisprudence in the Civil Procedure Law,as well as the management of their interrelationships.(b)Credit structure:The proportion of credits for“practical teaching and training”should be increased.(c)Practical ability requirements:Legal professionals should be cultivated according to the standards for juris masters(for law graduates)as stipulated by the Law of the People’s Republic of China on Academic Degrees.(d)Practice evaluation:“Formalization of the evaluations,”“homogeneity of the evaluators,”and“reliance on written formats”should be avoided.展开更多
From July 14 to 18,the"2025 National Practical Technology Training on Textile Dyeing and Printing Auxiliaries Preparation"hosted by the National Engineering Research Center for Surfactants and China Research...From July 14 to 18,the"2025 National Practical Technology Training on Textile Dyeing and Printing Auxiliaries Preparation"hosted by the National Engineering Research Center for Surfactants and China Research Institute of Daily Chemical,and co-organized by the Dyeing and Finishing Technology Research Institute of Zhejiang Fashion Institute of Technology was successfully held as scheduled in Guangzhou.展开更多
The application of digital technology in prosthodontics not only improves the accuracy of restoration and the efficiency of diagnosis and treatment,but also brings more comfortable and convenient diagnosis and treatme...The application of digital technology in prosthodontics not only improves the accuracy of restoration and the efficiency of diagnosis and treatment,but also brings more comfortable and convenient diagnosis and treatment experience to patients.It effectively promotes the rapid development of the prosthodontic aesthetics industry and leads prosthodontic technology to gradually enter a new digital era.Combining the advantages of digital technology in prosthodontics,this paper focuses on the specific applications of digital impression technology,CAD/CAM technology,network-based integrated cloud service technology,and CBCT technology in prosthodontics.On this basis,it prospects the development trend of digital technology in the field of prosthodontics,aiming to provide solid theoretical and practical support for clinical practice of prosthodontics and promote the gradual integration of the prosthodontic industry with the digital era.展开更多
The present study aims to explore the implementation pathway for practical teaching of basic clinical puncture procedures under the guidance of point-of-care ultrasound(POCUS).The goal of the study is twofold:firstly,...The present study aims to explore the implementation pathway for practical teaching of basic clinical puncture procedures under the guidance of point-of-care ultrasound(POCUS).The goal of the study is twofold:firstly,to address the shortcomings of the current medical education model and,secondly,to enhance medical students’independent thinking abilities and clinical diagnostic skills.The study enrolled 87 clinical medicine interns rotating at Jiangning Hospital in Nanjing from January to December 2024,dividing them into an experimental group(receiving ultrasound-guided puncture procedure training)and a control group(receiving conventional puncture procedure training).It was evident that both groups had successfully completed the requisite two-hour comprehensive course training program.A subsequent analysis of the teaching outcomes was then conducted through intergroup comparison.The findings indicated that the experimental group exhibited lower DOPS assessment scores in comparison to the control group(4.91±1.01 vs.5.84±1.22,p<0.05).However,the satisfaction levels of the experimental group with the teaching method reached 95.45%.This finding indicates that ultrasound-guided puncture techniques may offer a substantial advantage in terms of pedagogical approaches.However,it should be noted that students in the experimental group faced challenges such as high operational complexity and the need to pay attention to numerous details during actual procedures,leading to lower assessment scores.Conducting a systematic analysis of these issues can provide clear directions for the optimization of teaching methods in the future,thereby enhancing students’learning outcomes and clinical application capabilities.展开更多
Following the proposal of the“Emerging Engineering Education(EEE)”initiative,the cultivation of interdisciplinary innovative talents has gained increasing prominence.Currently,there exists a significant gap between ...Following the proposal of the“Emerging Engineering Education(EEE)”initiative,the cultivation of interdisciplinary innovative talents has gained increasing prominence.Currently,there exists a significant gap between the practical innovation capabilities of automotive majors in vocational colleges and the evolving demands of the industry.To address deficiencies in interdisciplinary innovative talent development programs,this study proposes an educational framework structured around“One Core,Two Dimensions,Three Levels.”Leveraging a project-driven teaching methodology and utilizing CATIA—the industry-standard 3D design software—as a central tool,we have developed a closed-loop teaching model integrating theory,modeling,simulation,and evaluation.This model underpins a newly designed automotive engineering practicum aimed at nurturing high-quality engineering talents equipped with three critical competencies:solving complex engineering challenges,digital design proficiency,and cross-disciplinary collaborative innovation.The proposed approach demonstrates potential to alleviate the structural disconnect between traditional engineering pedagogy and industry talent requirements.展开更多
After the middle of the Ming Dynasty,along with the rapid social changes,the ideological trend of practical studies guided by the reflection and criticism of the Cheng-Zhu Neo-Confucianism of“putting books on the she...After the middle of the Ming Dynasty,along with the rapid social changes,the ideological trend of practical studies guided by the reflection and criticism of the Cheng-Zhu Neo-Confucianism of“putting books on the shelf and not reading,exploring and studying without foundation”profoundly,widely,and comprehensively,affected every aspect of literary life.Influenced by this,selecting ancient proses in the Tianqi and Chongzhen periods developed new characteristics in three aspects:the purpose of selecting,the preferences of selecting,and the path of evaluating.As far as the purpose of selection is concerned,there is a new trend that the ancient writers of Tianqi and Chongzhen take the enlightenment and the world as the purpose of selection,and are no longer confined to the stereotypes of selecting articles for articles and selecting articles for their emotions.A large number of articles reflecting the economy and people’s livelihood,military affairs,and politics have been included in the anthology horizon of the anthology,thus expanding the selection types of ancient Chinese anthology.From the point of view of comments,the comments of Tianqi and Chongzhen ancient prose appear to be“especially today”.The merit of the ancient prose of management and government and the application of the world can replace the layout of the text,words,and rhetoric,and become the value of the selection of home evaluation.展开更多
This paper systematically studies the current practical application status,existing problems and optimization suggestions of 3D printing technology in spacecraft manufacturing.Research shows that this technology has b...This paper systematically studies the current practical application status,existing problems and optimization suggestions of 3D printing technology in spacecraft manufacturing.Research shows that this technology has been successfully applied to the manufacturing of key components such as rocket engines and satellite structures,demonstrating advantages like lightweight and rapid prototyping.However,it still faces core challenges such as material performance,process stability,adaptability to space environments,and industrialization costs.In response to these issues,this paper proposes three optimization suggestions:enhancing manufacturing reliability by developing aerospace-specific materials,optimizing process parameters,and establishing a quality traceability system.Surface modification technology and topological optimization design are adopted to enhance the adaptability to the spatial environment,and a space-ground integrated verification method is constructed.Reduce industrialization costs through the localization of materials,modular production,and the construction of a standardized system.Research has confirmed that implementing these measures can reduce the performance dispersion of 3D-printed aerospace components by more than 50%,increase their in-orbit lifespan by three times,and lower production costs by 30-40%.The research results of this paper provide a systematic technical route and industrialization solution for the large-scale application of 3D printing technology in the aerospace field,which has significant reference value for promoting the innovation of aerospace manufacturing models.展开更多
Under the background of information technology in education,there is insufficient integration of technological knowledge,pedagogical knowledge,and subject content knowledge in the teaching of propositions in high scho...Under the background of information technology in education,there is insufficient integration of technological knowledge,pedagogical knowledge,and subject content knowledge in the teaching of propositions in high school mathematics.Teachers mostly equate information technology with multimedia presentations,and students often memorize formulas mechanically,which leads to difficulties in the application of complex propositions.In this study,we take“the cosine formula of the difference between two angles”as an example.Based on the TPACK framework,we use contextual teaching and geometric drawing board demonstration to integrate subject content,pedagogical knowledge,and technological knowledge in teaching design and practice.It is found that by dynamically displaying the derivation process of the formula and guiding students to explore independently,it can help them understand the logic of the formula and improve their application ability.This study provides a paradigm for teaching propositions in high school mathematics and suggests that the TPACK framework can facilitate knowledge integration and cultivate students’mathematical literacy such as problem posing and creative inquiry,which is of great significance for teaching practice.展开更多
With the in-depth development of emerging engineering education,higher education has put forward higher requirements for the cultivation of engineering professionals.Professional practical courses are an important par...With the in-depth development of emerging engineering education,higher education has put forward higher requirements for the cultivation of engineering professionals.Professional practical courses are an important part of undergraduate teaching plans,aiming to improve students’practical abilities and their ability to comprehensively apply professional knowledge.To further explore teaching reform and improve the diversified curriculum assessment and evaluation system,this paper proposes a series of teaching reform methods for professional practical courses.It reforms the content and teaching methods of professional practical courses.On the basis of introducing practical application scenarios and cutting-edge technologies,it adds interdisciplinary modules,makes full use of internal and external school resources to break traditional disciplinary boundaries,and integrates interdisciplinary content from cutting-edge fields such as artificial intelligence,big data,and biotechnology.This enhances students’understanding of industry needs,practical operation capabilities,and awareness of multi-disciplinary integration.Secondly,it promotes a student-centered teaching model,increases students’opportunities for independent participation,and cultivates their independent thinking and innovation abilities.At the same time,it reforms the evaluation system:by comprehensively considering students’performance and achievements in the process of professional practical courses,it measures students’abilities more comprehensively through a multi-dimensional evaluation system.This study provides new ideas for the teaching of professional practical courses.展开更多
With the rapid development of the intelligent manufacturing industry,the demand for technical talents in industrial robot technology has become increasingly urgent.Focusing on the application value of virtual simulati...With the rapid development of the intelligent manufacturing industry,the demand for technical talents in industrial robot technology has become increasingly urgent.Focusing on the application value of virtual simulation technology in the practical teaching of industrial robot major and combining with the national vocational education reform policies,this paper explores the innovative role of virtual simulation technology in the practical teaching model from four dimensions:teaching cost optimization,safety improvement,scenario expansion,and evaluation innovation.The research shows that virtual simulation technology can effectively solve the“three highs and three difficulties”problems in traditional practical teaching,promote the in-depth development of the integration of industry and education,and provide strong support for cultivating high-quality technical and skilled talent in the field of industrial robots.展开更多
Practical activities are an indispensable piece of science education.As such,assessment of these practical activities is vital for continually enhancing the quality of science instruction.This article presents a tenta...Practical activities are an indispensable piece of science education.As such,assessment of these practical activities is vital for continually enhancing the quality of science instruction.This article presents a tentative framework structured for assessing practical activities in science education.The proposed framework is built upon seven components:engagement and participation,relational thinking,stepwise mastery,contextualization,multidimensional integration,empowerment,and scientific articulacy.The framework might provide science educators with an alternative lens through which to enhance the effectiveness of practical activities,promote student engagement,and better prepare learners for the future.This framework is designed to be additive and complementary to existing assessment approaches and can be adapted and customized to suit specific local contexts and varying grade levels by science educators in the pursuit of excellence in an ever-evolving science education landscape.展开更多
Background:Stretching has wide appeal,but there seems to exist some mismatch between its purported applications and what the evidence shows.There is compelling evidence for some stretching applications,but for others,...Background:Stretching has wide appeal,but there seems to exist some mismatch between its purported applications and what the evidence shows.There is compelling evidence for some stretching applications,but for others,the evidence seems heterogeneous or unsupportive.The discrepancies even affect some systematic reviews,possibly due to heterogeneous eligibility criteria and search strategies.This consensus paper seeks to unify the divergent findings on stretching and its implications for both athletic performance and clinical practices by delivering evidence-based recommendations.Methods:A panel of 20 experts with a blend of practical experience and scholarly knowledge was assembled.The panel meticulously reviewed existing systematic reviews,defined key terminologies(e.g.,consensus definitions for different stretching modes),and crafted guidelines using a Delphi consensus approach(minimum required agreement:80%).The analysis focused on 8 topics,including stretching's acute and chronic(long-term)effects on range of motion,strength performance,muscle hypertrophy,stiffness,injury prevention,muscle recovery,posture correction,and cardiovascular health.Results:There was consensus that chronic and acute stretching(a)improves range of motion(although alternatives exist)and(b)reduces muscle stiffness(which may not always be desirable);the panel also agreed that chronic stretching(c)may promote vascular health,but more research is warranted.In contrast,consensus was found that stretch training does not(a)contribute substantively to muscle growth,(b)serve as an allencompassing injury prevention strategy,(c)improve posture,or(d)acutely enhance post-exercise recovery.Conclusion:These recommendations provide guidance for athletes and practitioners,highlighting research gaps that should be addressed to more comprehensively understand the full scope of stretching effects.展开更多
To promote the achievement of high-quality and full employment goals for students in higher education,this paper analyzes the integration path of practical education and teaching in civil engineering and transportatio...To promote the achievement of high-quality and full employment goals for students in higher education,this paper analyzes the integration path of practical education and teaching in civil engineering and transportation majors,guided by surveying employment.This paper proposes three integration paths for practical teaching and education in civil engineering and transportation majors under the employment orientation.The first path is to create a modularized and informatized curriculum system.The second path is to deepen diverse cooperative practices between schools and enterprises.The third path is to construct a diversified quality evaluation system for academic achievement.To ensure the quality of education and employment,schools should continuously evaluate and reflect on the practical effects of these three paths to further optimize them.展开更多
Transition metals have garnered significant attention for their roles in addressing energy shortages and environmental water pollution.Their multivalent states and unique electron transfer properties facilitate charge...Transition metals have garnered significant attention for their roles in addressing energy shortages and environmental water pollution.Their multivalent states and unique electron transfer properties facilitate charge transfer in the conversion reaction,expedite energy conversion,and achieve low-energy water treatment.This review comprehensively explores the fundamental mechanisms and practical applications of transition metals in water treatment,including adsorption,photocatalysis,electrocatalysis,photoelectrocatalysis,and other technologies.The feasibility of water treatment using transition metal-based materials is demonstrated through theoretical studies on typical transition metals employed in these water treatment technologies while emphasizing the potential for optimizing material performance through strategies like structural design,defect engineering,crystal engineering,composite materials,surface modification,and atomic catalysts.In addition,the utilization of transition metal-based materials in practical wastewater treatment is comprehensively reviewed.Finally,the challenges and perspectives of transition metal-based materials in practical wastewater treatment are outlined,providing a theoretical foundation and guidance for future research and engineering advancements.展开更多
It has been over a decade since the first coded aperture video compressive sensing(CS)system was reported.The underlying principle of this technology is to employ a high-frequency modulator in the optical path to modu...It has been over a decade since the first coded aperture video compressive sensing(CS)system was reported.The underlying principle of this technology is to employ a high-frequency modulator in the optical path to modulate a recorded high-speed scene within one integration time.The superimposed image captured in this manner is modulated and compressed,since multiple modulation patterns are imposed.Following this,reconstruction algorithms are utilized to recover the desired high-speed scene.One leading advantage of video CS is that a single captured measurement can be used to reconstruct a multi-frame video,thereby enabling a low-speed camera to capture high-speed scenes.Inspired by this,a number of variants of video CS systems have been built,mainly using different modulation devices.Meanwhile,in order to obtain high-quality reconstruction videos,many algorithms have been developed,from optimization-based iterative algorithms to deep-learning-based ones.Recently,emerging deep learning methods have been dominant due to their high-speed inference and high-quality reconstruction,highlighting the possibility of deploying video CS in practical applications.Toward this end,this paper reviews the progress that has been achieved in video CS during the past decade.We further analyze the efforts that need to be made—in terms of both hardware and algorithms—to enable real applications.Research gaps are put forward and future directions are summarized to help researchers and engineers working on this topic.展开更多
In response to the three major contradictions,safety,cognition,and ability cultivation,existing in the practical teaching of geological hazard courses,this paper proposes a“virtual-real integration”teaching reform s...In response to the three major contradictions,safety,cognition,and ability cultivation,existing in the practical teaching of geological hazard courses,this paper proposes a“virtual-real integration”teaching reform scheme,using earthquake disasters as an example.By integrating digital twin technology and artificial intelligence technology,a four-layer teaching framework consisting of data layer,model layer,platform layer,and intelligent layer is constructed.Progressive teaching segments of“cognition-simulation-decision-making”are designed to establish a comprehensive training path from seismic geological survey to disaster early warning and decision-making.This scheme shifts the traditional field practice venue to a safe virtual environment,promotes students’understanding of geological hazards from static fragments to dynamic processes,enhances their comprehensive decision-making ability in geological disaster prevention and mitigation,and provides theoretical support and practical guidance for cultivating interdisciplinary talents in geological hazard prevention.展开更多
In response to the current situation of practical teaching and the main problems in the teaching process of cultivating composite talents in the characteristic demonstration software college,this paper analyzes the im...In response to the current situation of practical teaching and the main problems in the teaching process of cultivating composite talents in the characteristic demonstration software college,this paper analyzes the importance of digital reform in practical teaching,introduces the work foundation,main work,reform characteristics,and effects of digital reform in practical teaching of composite talents in Software College of Northeastern University and lays the foundation for future in-depth research,providing reference for the digital reform of practical teaching in related majors of other colleges.展开更多
The theory of new quality productive forces provides a foundational framework for cultivating pre-service English teachers.There is a high degree of consistency between the development of new quality productive forces...The theory of new quality productive forces provides a foundational framework for cultivating pre-service English teachers.There is a high degree of consistency between the development of new quality productive forces and the cultivation of pre-service English teachers.The development of new quality productive forces has put forward new requirements for the cultivation of pre-service English teachers,while the cultivation of pre-service English teachers will also promote the development of new quality productive forces and provide talent support for it.Currently,the cultivation of pre-service English teachers faces numerous challenges,which requires strengthening top-level program design,reconstructing the curriculum system,expanding cultivation fields for pre-service English teachers,improving the digital literacy of pre-service English teachers,deepening international exchanges and cooperation,and building an evidence-based evaluation system as a guarantee to achieve new breakthroughs in the cultivation of pre-service English teachers and promote the development of new quality productive forces.展开更多
基金funded in part by the National Key Research and Development Program of China(2020YFB0905900)in part by Science and Technology Project of State Grid Corporation of China(SGCC)The Key Technologies for Electric Internet of Things(SGTJDK00DWJS2100223).
文摘Fast and accurate transient stability analysis is crucial to power system operation.With high penetration level of wind power resources,practical dynamic security region(PDSR)with hyper plane expression has outstanding advantages in situational awareness and series of optimization problems.The precondition of obtaining accurate PDSR boundary is to locate sufficient points around the boundary(critical points).Therefore,this paper proposes a space division and Wasserstein generative adversarial network with gra-dient penalty(WGAN-GP)based fast generation method of PDSR boundary.First,the typical differential topological characterizations of dynamic security region(DSR)provide strong theoretical foundation that the interior of DSR is hole-free and the boundaries of DSR are tight and knot-free.Then,the space division method is proposed to calculate critical operation area where the PDSR boundary is located,tremen-dously compressing the search space to locate critical points and improving the confidence level of boundary fitting result.Furthermore,the WGAN-GP model is utilized to fast obtain large number of criti-cal points based on learning the data distribution of the small training set aforementioned.Finally,the PDSR boundary with hyperplanes is fitted by the least square method.The case study is tested on the Institute of Electrical and Electronics Engineers(IEEE)39-bus system and the results verify the accuracy and efficiency of the proposed method.
文摘Practical jurisprudence is a completely new proposition in legal education and research.The introduction of the concept of“practical jurisprudence”in the teaching of the Civil Procedure Law of the People’s Republic of China(the“Civil Procedure Law”)is a major innovation in terms of values and methodology.Practical jurisprudence focuses more on practical issues,Chinese characteristics,and major needs,while strengthening the practical nature of the Civil Procedure Law.China’s traditional education system for juris masters(for non-law graduates)(“non-law JMs”)emphasizes the development of foundational legal theoretical knowledge.However,it has not fully achieved its goal of cultivating interdisciplinary and practical legal professionals.Therefore,the traditional education system for the Civil Procedure Law needs reconstruction and supplementation through the practical jurisprudence teaching system in the following areas:(a)System composition:The focus should be on the eight tertiary subsystems under the two secondary subsystems—“the knowledge teaching system and the practical teaching system”of practical jurisprudence in the Civil Procedure Law,as well as the management of their interrelationships.(b)Credit structure:The proportion of credits for“practical teaching and training”should be increased.(c)Practical ability requirements:Legal professionals should be cultivated according to the standards for juris masters(for law graduates)as stipulated by the Law of the People’s Republic of China on Academic Degrees.(d)Practice evaluation:“Formalization of the evaluations,”“homogeneity of the evaluators,”and“reliance on written formats”should be avoided.
文摘From July 14 to 18,the"2025 National Practical Technology Training on Textile Dyeing and Printing Auxiliaries Preparation"hosted by the National Engineering Research Center for Surfactants and China Research Institute of Daily Chemical,and co-organized by the Dyeing and Finishing Technology Research Institute of Zhejiang Fashion Institute of Technology was successfully held as scheduled in Guangzhou.
基金Wuhan University of Arts and Science 2023 University-Level Scientific Research(Project No.:2023xk33)。
文摘The application of digital technology in prosthodontics not only improves the accuracy of restoration and the efficiency of diagnosis and treatment,but also brings more comfortable and convenient diagnosis and treatment experience to patients.It effectively promotes the rapid development of the prosthodontic aesthetics industry and leads prosthodontic technology to gradually enter a new digital era.Combining the advantages of digital technology in prosthodontics,this paper focuses on the specific applications of digital impression technology,CAD/CAM technology,network-based integrated cloud service technology,and CBCT technology in prosthodontics.On this basis,it prospects the development trend of digital technology in the field of prosthodontics,aiming to provide solid theoretical and practical support for clinical practice of prosthodontics and promote the gradual integration of the prosthodontic industry with the digital era.
基金Education Foundation of Kangda College of Nanjing Medical University(Project No.:KDJYYJYB202332)Science Foundation of Kangda College of Nanjing Medical University(Project No.:KD2023KYJJ250)。
文摘The present study aims to explore the implementation pathway for practical teaching of basic clinical puncture procedures under the guidance of point-of-care ultrasound(POCUS).The goal of the study is twofold:firstly,to address the shortcomings of the current medical education model and,secondly,to enhance medical students’independent thinking abilities and clinical diagnostic skills.The study enrolled 87 clinical medicine interns rotating at Jiangning Hospital in Nanjing from January to December 2024,dividing them into an experimental group(receiving ultrasound-guided puncture procedure training)and a control group(receiving conventional puncture procedure training).It was evident that both groups had successfully completed the requisite two-hour comprehensive course training program.A subsequent analysis of the teaching outcomes was then conducted through intergroup comparison.The findings indicated that the experimental group exhibited lower DOPS assessment scores in comparison to the control group(4.91±1.01 vs.5.84±1.22,p<0.05).However,the satisfaction levels of the experimental group with the teaching method reached 95.45%.This finding indicates that ultrasound-guided puncture techniques may offer a substantial advantage in terms of pedagogical approaches.However,it should be noted that students in the experimental group faced challenges such as high operational complexity and the need to pay attention to numerous details during actual procedures,leading to lower assessment scores.Conducting a systematic analysis of these issues can provide clear directions for the optimization of teaching methods in the future,thereby enhancing students’learning outcomes and clinical application capabilities.
文摘Following the proposal of the“Emerging Engineering Education(EEE)”initiative,the cultivation of interdisciplinary innovative talents has gained increasing prominence.Currently,there exists a significant gap between the practical innovation capabilities of automotive majors in vocational colleges and the evolving demands of the industry.To address deficiencies in interdisciplinary innovative talent development programs,this study proposes an educational framework structured around“One Core,Two Dimensions,Three Levels.”Leveraging a project-driven teaching methodology and utilizing CATIA—the industry-standard 3D design software—as a central tool,we have developed a closed-loop teaching model integrating theory,modeling,simulation,and evaluation.This model underpins a newly designed automotive engineering practicum aimed at nurturing high-quality engineering talents equipped with three critical competencies:solving complex engineering challenges,digital design proficiency,and cross-disciplinary collaborative innovation.The proposed approach demonstrates potential to alleviate the structural disconnect between traditional engineering pedagogy and industry talent requirements.
基金supported by the Postdoctoral Fellowship Program of CPSF under Grant Number GZC20230877The 2023 Youth Teachers’Scientific Research Cultivation Fund Project of South China Normal University“Collation and Research of Ancient Prose Comments in Late Ming Dynasty”(23SK15).
文摘After the middle of the Ming Dynasty,along with the rapid social changes,the ideological trend of practical studies guided by the reflection and criticism of the Cheng-Zhu Neo-Confucianism of“putting books on the shelf and not reading,exploring and studying without foundation”profoundly,widely,and comprehensively,affected every aspect of literary life.Influenced by this,selecting ancient proses in the Tianqi and Chongzhen periods developed new characteristics in three aspects:the purpose of selecting,the preferences of selecting,and the path of evaluating.As far as the purpose of selection is concerned,there is a new trend that the ancient writers of Tianqi and Chongzhen take the enlightenment and the world as the purpose of selection,and are no longer confined to the stereotypes of selecting articles for articles and selecting articles for their emotions.A large number of articles reflecting the economy and people’s livelihood,military affairs,and politics have been included in the anthology horizon of the anthology,thus expanding the selection types of ancient Chinese anthology.From the point of view of comments,the comments of Tianqi and Chongzhen ancient prose appear to be“especially today”.The merit of the ancient prose of management and government and the application of the world can replace the layout of the text,words,and rhetoric,and become the value of the selection of home evaluation.
文摘This paper systematically studies the current practical application status,existing problems and optimization suggestions of 3D printing technology in spacecraft manufacturing.Research shows that this technology has been successfully applied to the manufacturing of key components such as rocket engines and satellite structures,demonstrating advantages like lightweight and rapid prototyping.However,it still faces core challenges such as material performance,process stability,adaptability to space environments,and industrialization costs.In response to these issues,this paper proposes three optimization suggestions:enhancing manufacturing reliability by developing aerospace-specific materials,optimizing process parameters,and establishing a quality traceability system.Surface modification technology and topological optimization design are adopted to enhance the adaptability to the spatial environment,and a space-ground integrated verification method is constructed.Reduce industrialization costs through the localization of materials,modular production,and the construction of a standardized system.Research has confirmed that implementing these measures can reduce the performance dispersion of 3D-printed aerospace components by more than 50%,increase their in-orbit lifespan by three times,and lower production costs by 30-40%.The research results of this paper provide a systematic technical route and industrialization solution for the large-scale application of 3D printing technology in the aerospace field,which has significant reference value for promoting the innovation of aerospace manufacturing models.
文摘Under the background of information technology in education,there is insufficient integration of technological knowledge,pedagogical knowledge,and subject content knowledge in the teaching of propositions in high school mathematics.Teachers mostly equate information technology with multimedia presentations,and students often memorize formulas mechanically,which leads to difficulties in the application of complex propositions.In this study,we take“the cosine formula of the difference between two angles”as an example.Based on the TPACK framework,we use contextual teaching and geometric drawing board demonstration to integrate subject content,pedagogical knowledge,and technological knowledge in teaching design and practice.It is found that by dynamically displaying the derivation process of the formula and guiding students to explore independently,it can help them understand the logic of the formula and improve their application ability.This study provides a paradigm for teaching propositions in high school mathematics and suggests that the TPACK framework can facilitate knowledge integration and cultivate students’mathematical literacy such as problem posing and creative inquiry,which is of great significance for teaching practice.
基金The 2022 Youth Project of Liaoning Provincial Department of Education(Project No.:LJKQZ20222445)Teaching and Research Project of Shenyang Institute of Engineering。
文摘With the in-depth development of emerging engineering education,higher education has put forward higher requirements for the cultivation of engineering professionals.Professional practical courses are an important part of undergraduate teaching plans,aiming to improve students’practical abilities and their ability to comprehensively apply professional knowledge.To further explore teaching reform and improve the diversified curriculum assessment and evaluation system,this paper proposes a series of teaching reform methods for professional practical courses.It reforms the content and teaching methods of professional practical courses.On the basis of introducing practical application scenarios and cutting-edge technologies,it adds interdisciplinary modules,makes full use of internal and external school resources to break traditional disciplinary boundaries,and integrates interdisciplinary content from cutting-edge fields such as artificial intelligence,big data,and biotechnology.This enhances students’understanding of industry needs,practical operation capabilities,and awareness of multi-disciplinary integration.Secondly,it promotes a student-centered teaching model,increases students’opportunities for independent participation,and cultivates their independent thinking and innovation abilities.At the same time,it reforms the evaluation system:by comprehensively considering students’performance and achievements in the process of professional practical courses,it measures students’abilities more comprehensively through a multi-dimensional evaluation system.This study provides new ideas for the teaching of professional practical courses.
文摘With the rapid development of the intelligent manufacturing industry,the demand for technical talents in industrial robot technology has become increasingly urgent.Focusing on the application value of virtual simulation technology in the practical teaching of industrial robot major and combining with the national vocational education reform policies,this paper explores the innovative role of virtual simulation technology in the practical teaching model from four dimensions:teaching cost optimization,safety improvement,scenario expansion,and evaluation innovation.The research shows that virtual simulation technology can effectively solve the“three highs and three difficulties”problems in traditional practical teaching,promote the in-depth development of the integration of industry and education,and provide strong support for cultivating high-quality technical and skilled talent in the field of industrial robots.
基金supported by the Scientific Research Program of Hefei Normal University(2024KY71)the Partnership Program of Hefei Normal University(HXXM2022094).
文摘Practical activities are an indispensable piece of science education.As such,assessment of these practical activities is vital for continually enhancing the quality of science instruction.This article presents a tentative framework structured for assessing practical activities in science education.The proposed framework is built upon seven components:engagement and participation,relational thinking,stepwise mastery,contextualization,multidimensional integration,empowerment,and scientific articulacy.The framework might provide science educators with an alternative lens through which to enhance the effectiveness of practical activities,promote student engagement,and better prepare learners for the future.This framework is designed to be additive and complementary to existing assessment approaches and can be adapted and customized to suit specific local contexts and varying grade levels by science educators in the pursuit of excellence in an ever-evolving science education landscape.
文摘Background:Stretching has wide appeal,but there seems to exist some mismatch between its purported applications and what the evidence shows.There is compelling evidence for some stretching applications,but for others,the evidence seems heterogeneous or unsupportive.The discrepancies even affect some systematic reviews,possibly due to heterogeneous eligibility criteria and search strategies.This consensus paper seeks to unify the divergent findings on stretching and its implications for both athletic performance and clinical practices by delivering evidence-based recommendations.Methods:A panel of 20 experts with a blend of practical experience and scholarly knowledge was assembled.The panel meticulously reviewed existing systematic reviews,defined key terminologies(e.g.,consensus definitions for different stretching modes),and crafted guidelines using a Delphi consensus approach(minimum required agreement:80%).The analysis focused on 8 topics,including stretching's acute and chronic(long-term)effects on range of motion,strength performance,muscle hypertrophy,stiffness,injury prevention,muscle recovery,posture correction,and cardiovascular health.Results:There was consensus that chronic and acute stretching(a)improves range of motion(although alternatives exist)and(b)reduces muscle stiffness(which may not always be desirable);the panel also agreed that chronic stretching(c)may promote vascular health,but more research is warranted.In contrast,consensus was found that stretch training does not(a)contribute substantively to muscle growth,(b)serve as an allencompassing injury prevention strategy,(c)improve posture,or(d)acutely enhance post-exercise recovery.Conclusion:These recommendations provide guidance for athletes and practitioners,highlighting research gaps that should be addressed to more comprehensively understand the full scope of stretching effects.
基金Ministry of Education Supply and Demand Matching Employment Education Project,“Exploration and Practice of School-Enterprise Co-Education of Surveying and Mapping Professionals Under the Background of Industry-Education Integration”(Project No.:2024010250340)。
文摘To promote the achievement of high-quality and full employment goals for students in higher education,this paper analyzes the integration path of practical education and teaching in civil engineering and transportation majors,guided by surveying employment.This paper proposes three integration paths for practical teaching and education in civil engineering and transportation majors under the employment orientation.The first path is to create a modularized and informatized curriculum system.The second path is to deepen diverse cooperative practices between schools and enterprises.The third path is to construct a diversified quality evaluation system for academic achievement.To ensure the quality of education and employment,schools should continuously evaluate and reflect on the practical effects of these three paths to further optimize them.
基金financially supported by the National Natural Science Foundation of China(Nos.22306026 and 52371346)the Young Elite Scientists Sponsorship Program by China Association for Science and Technology(No.2023QNRC001)+3 种基金the Ecological Society of China(No.STQT2023C07)the Fundamental Research Funds for the Central Universities(Nos.2242024K40007 and 2242024RCB0058)the Start-up Research Fund of Southeast University(No.RF1028623141)Tang Scholar Program of Southeast University
文摘Transition metals have garnered significant attention for their roles in addressing energy shortages and environmental water pollution.Their multivalent states and unique electron transfer properties facilitate charge transfer in the conversion reaction,expedite energy conversion,and achieve low-energy water treatment.This review comprehensively explores the fundamental mechanisms and practical applications of transition metals in water treatment,including adsorption,photocatalysis,electrocatalysis,photoelectrocatalysis,and other technologies.The feasibility of water treatment using transition metal-based materials is demonstrated through theoretical studies on typical transition metals employed in these water treatment technologies while emphasizing the potential for optimizing material performance through strategies like structural design,defect engineering,crystal engineering,composite materials,surface modification,and atomic catalysts.In addition,the utilization of transition metal-based materials in practical wastewater treatment is comprehensively reviewed.Finally,the challenges and perspectives of transition metal-based materials in practical wastewater treatment are outlined,providing a theoretical foundation and guidance for future research and engineering advancements.
基金supported by the National Natural Science Foundation of China(61931012,62171258,62088102,and 62271414)the Zhejiang Provincial Outstanding Youth Science Foundation(LR23F010001)the Key Project of Westlake Institute for Optoelectronics(2023GD007).
文摘It has been over a decade since the first coded aperture video compressive sensing(CS)system was reported.The underlying principle of this technology is to employ a high-frequency modulator in the optical path to modulate a recorded high-speed scene within one integration time.The superimposed image captured in this manner is modulated and compressed,since multiple modulation patterns are imposed.Following this,reconstruction algorithms are utilized to recover the desired high-speed scene.One leading advantage of video CS is that a single captured measurement can be used to reconstruct a multi-frame video,thereby enabling a low-speed camera to capture high-speed scenes.Inspired by this,a number of variants of video CS systems have been built,mainly using different modulation devices.Meanwhile,in order to obtain high-quality reconstruction videos,many algorithms have been developed,from optimization-based iterative algorithms to deep-learning-based ones.Recently,emerging deep learning methods have been dominant due to their high-speed inference and high-quality reconstruction,highlighting the possibility of deploying video CS in practical applications.Toward this end,this paper reviews the progress that has been achieved in video CS during the past decade.We further analyze the efforts that need to be made—in terms of both hardware and algorithms—to enable real applications.Research gaps are put forward and future directions are summarized to help researchers and engineers working on this topic.
基金supported by Kunming University of Science and Technology 2024 graduate course ideological and political case construction project(109920240103)Case construction project of AI-enabled postgraduate talent training in Kunming University of Technology,the Yunnan Fundamental Research Projects(202501AT070358 and 202401AU070142)+1 种基金the Scientific Research Fund Program of Yunnan Provincial Department of Education(2024J0078)Talent Cultivation Fund Project of Kunming University of Science and Technology(KKZ3202467041 and KKZ3202467045).
文摘In response to the three major contradictions,safety,cognition,and ability cultivation,existing in the practical teaching of geological hazard courses,this paper proposes a“virtual-real integration”teaching reform scheme,using earthquake disasters as an example.By integrating digital twin technology and artificial intelligence technology,a four-layer teaching framework consisting of data layer,model layer,platform layer,and intelligent layer is constructed.Progressive teaching segments of“cognition-simulation-decision-making”are designed to establish a comprehensive training path from seismic geological survey to disaster early warning and decision-making.This scheme shifts the traditional field practice venue to a safe virtual environment,promotes students’understanding of geological hazards from static fragments to dynamic processes,enhances their comprehensive decision-making ability in geological disaster prevention and mitigation,and provides theoretical support and practical guidance for cultivating interdisciplinary talents in geological hazard prevention.
文摘In response to the current situation of practical teaching and the main problems in the teaching process of cultivating composite talents in the characteristic demonstration software college,this paper analyzes the importance of digital reform in practical teaching,introduces the work foundation,main work,reform characteristics,and effects of digital reform in practical teaching of composite talents in Software College of Northeastern University and lays the foundation for future in-depth research,providing reference for the digital reform of practical teaching in related majors of other colleges.
基金supported by the National Education Sciences Planning Program of China through the National Office for Education Sciences Planning(Grant No.DIA220376).
文摘The theory of new quality productive forces provides a foundational framework for cultivating pre-service English teachers.There is a high degree of consistency between the development of new quality productive forces and the cultivation of pre-service English teachers.The development of new quality productive forces has put forward new requirements for the cultivation of pre-service English teachers,while the cultivation of pre-service English teachers will also promote the development of new quality productive forces and provide talent support for it.Currently,the cultivation of pre-service English teachers faces numerous challenges,which requires strengthening top-level program design,reconstructing the curriculum system,expanding cultivation fields for pre-service English teachers,improving the digital literacy of pre-service English teachers,deepening international exchanges and cooperation,and building an evidence-based evaluation system as a guarantee to achieve new breakthroughs in the cultivation of pre-service English teachers and promote the development of new quality productive forces.
