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Effects of Internet-Based Acceptance and Commitment Therapy on College Students’Mental Health: A Randomized Controlled Trial
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作者 Jing Wang Shuanghu Fang +1 位作者 Zihua Li Shaoyong Ma 《International Journal of Mental Health Promotion》 2025年第6期845-861,共17页
Objectives:College students face increasing mental health challenges.Although Acceptance and CommitmentTherapy(ACT)is effective,the efficacy of Internet-based ACT(iACT)needs further exploration.Methods:This study exam... Objectives:College students face increasing mental health challenges.Although Acceptance and CommitmentTherapy(ACT)is effective,the efficacy of Internet-based ACT(iACT)needs further exploration.Methods:This study examines the efficacy of iACT on college students’mental health through a randomized controlled trial.We recruited 90 college students(19.16±1.02 years old)and randomly divided them into the iACT group,face-to-face ACT group,and control group.The effects of the interventions were evaluated using the comprehensive assessment of ACT processes(CompACT)and the Depression Anxiety Stress Scales(DASS-21).Results:Two-factor repeated measures ANOVA revealed a significant time main effect of iACT.Face-to-face ACT and iACT effectively improved college students’psychological flexibility[F(2,83)=18.78,p<0.001,η^(2)=0.18]and alleviated their negative emotions[F(2,82)=41.17,p<0.001,η^(2)=0.36].Face-to-face ACT exhibited sustained effects on improving participants’psychological flexibility and alleviating their negative emotions(p<0.001),while iACT showed no sustained effect on improving participants’psychological flexibility(p>0.05).Conclusion:While iACT and face-to-face ACT are effective shortterm interventions,face-to-face ACT demonstrates superior sustainability.Integrating guided sessions into iACT may enhance long-term outcomes.These findings advocate for blended interventions to address college students’mental health needs,particularly in resource-limited settings. 展开更多
关键词 internet-based acceptance and commitment therapy mental health college students randomized controlled trial
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CET-4翻译真题与ChatGPT生成翻译题的内容效度对比研究
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作者 王勃然 黄馨 《外语教育研究》 2025年第3期1-8,共8页
以ChatGPT为代表的人工智能技术演进为外语教学领域带来新的发展契机。文章以外语教学中的语言测试为切入点,参照2022年6月至2024年6月共计21套全国大学生英语四级考试翻译真题,首先指示ChatGPT依据考试大纲生成翻译题,然后基于Bachman... 以ChatGPT为代表的人工智能技术演进为外语教学领域带来新的发展契机。文章以外语教学中的语言测试为切入点,参照2022年6月至2024年6月共计21套全国大学生英语四级考试翻译真题,首先指示ChatGPT依据考试大纲生成翻译题,然后基于Bachman和Palmer的测试任务特征框架的语篇输入和预期回答维度比较二者的内容效度。结果发现:在语篇输入维度,相较于四级真题,ChatGPT生成的测试话题更丰富、体裁更多元,但知识背景熟悉度和积极情感导向仍有待优化。此外,四级真题的难度更接近大纲要求。在预期回答维度,四级真题的翻译速度和考核技能更符合大纲规定,但ChatGPT可进一步调整优化题目。研究结果可为如何利用类ChatGPT的生成式人工智能技术赋能外语教学和语言测试实践提供一定的启示。 展开更多
关键词 ChatGPT 人工智能 翻译测试 内容效度 全国大学生英语四级考试
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基于CET@I方法论的企业商业模式创新前因组态研究
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作者 梁晨 陈怀超 +2 位作者 吴慧超 姜珂 王蕾 《管理评论》 北大核心 2025年第7期103-114,共12页
本文基于CET@I方法论,运用fsQCA方法系统研究隐性知识因素(正式制度资本、非正式制度资本、外向型开放式创新、内向型开放式创新、制造企业/非制造企业)和显性知识因素(企业规模、资源整合能力、运营经验)对企业商业模式创新的组态效应... 本文基于CET@I方法论,运用fsQCA方法系统研究隐性知识因素(正式制度资本、非正式制度资本、外向型开放式创新、内向型开放式创新、制造企业/非制造企业)和显性知识因素(企业规模、资源整合能力、运营经验)对企业商业模式创新的组态效应。研究发现:①不存在单个因素构成企业高/非高商业模式创新产生的必要条件,但在产生企业高商业模式创新过程中,高内向型开放式创新和高资源整合能力作用突出;②存在5个组态可以产生企业高商业模式创新,可归纳为4种类型,分别为制度资本-开放式创新驱动型、非正式制度资本-开放式创新驱动型、正式制度资本-开放式创新驱动型和正式制度资本-内向型开放式创新驱动型;③存在6个组态可以产生企业非高商业模式创新,与产生企业高商业模式创新的驱动机制呈现非对称性关系。 展开更多
关键词 商业模式创新 冰山理论 cet@I方法论 fsQCA
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Intel CET流程强制机制探究
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作者 彭茜珍 《湖北科技学院学报》 2025年第5期103-109,共7页
面向RET的编程(ROP)以及面向CALL/JMP的编程(COP/JOP),一直是黑客针对程序中的代码开发过程中可能产生的隐形漏洞而被利用的流行攻击方法,是一种高级的内存攻击技术,它严重威胁计算机运行的安全。2018年,Intel公司提出了CET(Control-flo... 面向RET的编程(ROP)以及面向CALL/JMP的编程(COP/JOP),一直是黑客针对程序中的代码开发过程中可能产生的隐形漏洞而被利用的流行攻击方法,是一种高级的内存攻击技术,它严重威胁计算机运行的安全。2018年,Intel公司提出了CET(Control-flow Enforcement Technology)机制,这是一项硬件级的安全技术,旨在加强程序控制流的保护,防止黑客的攻击。本文介绍了Intel CET硬件级的控制流保护的原理和特征,分析了它的关键机制底层实现细节,为提升处理器的抗击黑客攻击能力提供一个新方法。 展开更多
关键词 SHSTK IBT cet
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CET4教学中目标激励导向的应用路径与效果提升研究
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作者 黄晓丽 《中国科技经济新闻数据库 教育》 2025年第10期098-101,共4页
CET4教学正处于转型关键期,学生在面对备考任务时常表现出目标模糊、动力不足等问题。目标激励导向理念为提升教学效率和学习成效提供了方向,但现实教学中该理念的应用面临诸多障碍,如教学目标缺乏层次性、激励机制单一、课堂反馈效率... CET4教学正处于转型关键期,学生在面对备考任务时常表现出目标模糊、动力不足等问题。目标激励导向理念为提升教学效率和学习成效提供了方向,但现实教学中该理念的应用面临诸多障碍,如教学目标缺乏层次性、激励机制单一、课堂反馈效率低等。本研究聚焦于目标激励导向在CET4教学中的实际应用路径,通过系统构建目标层级、优化激励内容、重构课堂反馈和强化师生互动,旨在推动学生建立清晰学习目标、增强自我驱动、提升参与热情。本文不仅剖析问题根源,更从教学设计与策略执行层面提供切实可行的优化路径,力求为高校英语教学改革提供具体可操作的参考依据。 展开更多
关键词 cet4教学 目标激励导向 学习动机 教学策略 课堂反馈
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Structural Analysis of Interactive Multimedia-Internet-based Teaching System in College English Teaching
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作者 张文明 《海外英语》 2013年第6X期125-127,共3页
It is of vital importance for modern college English teaching to properly construct an interactive multimedia-internet-based teaching system, the structure of which is clearly elaborated in this paper. An IMITS usuall... It is of vital importance for modern college English teaching to properly construct an interactive multimedia-internet-based teaching system, the structure of which is clearly elaborated in this paper. An IMITS usually consists of hardware, software, teaching and management. At the end of this paper, a conclusion is made that only when all the four parts of IMITS are construct ed such as is demonstrated, can the IMITS exert its full effects in college English teaching. 展开更多
关键词 IMITS cet HARDWARE SOFTWARE TEACHING management
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中华优秀传统文化融入大学英语教学路径探析——以CET-4段落翻译题为视角 被引量:1
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作者 王福宁 《新疆警察学院学报》 2024年第2期74-80,共7页
习近平总书记强调,要推进文化自信自强,传承中华优秀传统文化,坚守中华文化立场,讲好中国故事。通过分析近五年大学英语四级考试段落翻译题内容,可见重在考查学生的中华文化负载词英译和跨文化交际能力。将中华优秀传统文化融入大学英... 习近平总书记强调,要推进文化自信自强,传承中华优秀传统文化,坚守中华文化立场,讲好中国故事。通过分析近五年大学英语四级考试段落翻译题内容,可见重在考查学生的中华文化负载词英译和跨文化交际能力。将中华优秀传统文化融入大学英语教学,需立足现有教材文本,挖掘文化负载词,自然融入中华文化,积极开展课外教学活动,重视过程性阶段性评价,努力实现大学英语工具性和人文性的统一。 展开更多
关键词 大学英语 中华优秀传统文化 教学 路径 cet-4
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大规模英语口语考试评分质量保障体系建设——以CET-SET6在线评分为例
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作者 夏伟蓉 唐俊 +1 位作者 杨林 李巍 《西南交通大学学报(社会科学版)》 2024年第4期51-67,共17页
大规模外语口语考试在线评分质量体系建设是一项系统工程,也是保障评分信度和可靠性的关键环节。在全国大学英语四、六级考试(CET)在线评分流程顶层设计指导下,三维度在线评分质量保障体系将口语评分过程中样卷及培训卷挑选流程、评分... 大规模外语口语考试在线评分质量体系建设是一项系统工程,也是保障评分信度和可靠性的关键环节。在全国大学英语四、六级考试(CET)在线评分流程顶层设计指导下,三维度在线评分质量保障体系将口语评分过程中样卷及培训卷挑选流程、评分员培训流程、评分过程动态监控流程三个不同层面的子系统一环扣一环关联起来,使标准化工作机制一步一步落到实处。该体系从宏观和微观的管理视角,自上而下而又自下而上地从不同层面对评分误差进行控制,以降低评分中因评分员主观因素造成的给分差异。CET-SET6在线评分实践表明,该保障体系的实施提升了CET-SET评分信度和效度,有效保障了评分质量。该体系的建设也可为提高大规模、高风险考试在线评分信度、效度及质量管理水平提供一定的借鉴和参考。 展开更多
关键词 大规模口语考试 评分质量保障体系 cet-SET在线评分 培训体系 动态监控体系
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The feasibility of an internet-based intervention for Chinese people with mental illness: A survey of willingness and attitude 被引量:1
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作者 Xiu-Yu Yao Zheng Li +2 位作者 David Arthur Li-Li Hu Gen Cheng 《International Journal of Nursing Sciences》 2014年第1期28-33,共6页
Background:The easy accessibility,increasing usage,and low cost of internet make it a desirable way of providing health information and delivering interventions for health consumers.Studies in other countries have ver... Background:The easy accessibility,increasing usage,and low cost of internet make it a desirable way of providing health information and delivering interventions for health consumers.Studies in other countries have verified and confirmed the effectiveness of internet-based interventions among people with mental health problems.Similar programs have yet to commence in China.Purpose:This study investigated the willingness for,and attitude toward internet-based intervention in Chinese mental health service users and explored the feasibility of such an intervention.Methods:A cross-sectional survey utilizing a self-developed questionnaire was administered to 186 mental health service users in Beijing,between April and May 2011.Results:Most participants held a positive attitude toward online information and expressed interest in getting assistance from the internet.Some advice and suggestions were provided such as more ways of getting assistance,setting up more professional websites,increasing interaction,as well as having government funding and guidance.Conclusion:Internet-based programs are feasible and applicable,and worth implementing with Chinese people with mental illness. 展开更多
关键词 internet-based nursing intervention Mental health nursing Mental health patients
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Internet-Based Optimization and Choice of Insert Grooves for Face-Milling
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作者 DONG Li-hua 1, XU Xiao-cun 1, LI Zhen-jia 1, WEI Hua-liang 2 (1. Department of Mechanical Engineering, Harbin University of Science and Technology, Harbin 150080, China 2. Harbin Measuring and Cutting Works, Harbin 150040, China) 《厦门大学学报(自然科学版)》 CAS CSCD 北大核心 2002年第S1期37-38,共2页
Manufacture is facing more furiously competition in the new century. It tends to be globalized. Rapid response and technology innovation have become the key factor to the success of manufacture enterprise. At present,... Manufacture is facing more furiously competition in the new century. It tends to be globalized. Rapid response and technology innovation have become the key factor to the success of manufacture enterprise. At present, internet-based manufacturing develops rapidly. With the development of engineering material and machining techniques, better cutting properties of metal cutting tools are required. The world is paying more attention to the study of indexable carbide inserts with three-dimensional complex grooves which can affect cutting properties directly and chip-controlling. So the variety and specification of indexable insert develop quickly and the application of insert with three-dimensional complex chip-former becomes wider and wider. Because milling is an interrupted cutting, the process of milling is complicated and the failure of the milling inserts is severe. It is important to choose suitable milling inserts groove for particular machining conditions before actual machining, it will extend tool life and raise productivity. Optimization and choice of inserts with complex groove via internet may serve for manufacture enterprises all over the world. The milling inserts with three-dimensional complex grooves are optimized and chosen via Internet in this paper. The face-milling process is studied, with the mathematics models of cutting force for different shape of cutting edges established, the cutting forces predicted and stress-fields of different insert grooves analyzed by FEM, according to the predictable results and the most suitable insert groove for particular machining conditions are optimized and chosen. The complex groove optimization and choice are based on a client/server model, with the client and server being on different machines across the internet. Communication between the client and server uses the TCP/IP. The result of optimization and choice will be sent to the users via Internet. Manufacturers all over the world can get the desired insert groove without paying for expensive experiments. Thus, the cost and lead time of products are reduced. 展开更多
关键词 internet-based face-milling insert groove optimization and choice
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Internet-Based Support and Coaching for Adolescents and Young Adults with Neuropsychiatric Disorders—The Implementation of an Intervention from an Organizational Perspective
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作者 Nanna Gillberg Elisabet Wentz 《Health》 2017年第1期69-87,共19页
There is a documented and often unmet need for interventions aimed at supporting young people with attention-deficit/hyperactivity disorder (ADHD) and/or autism spectrum disorder (ASD) in their transition between adol... There is a documented and often unmet need for interventions aimed at supporting young people with attention-deficit/hyperactivity disorder (ADHD) and/or autism spectrum disorder (ASD) in their transition between adolescence and adulthood. Difficulties with social interaction, initiation difficulties, and impairments in executive function can complicate visits at a clinic, i.e. traditional treatment, for individuals with neuropsychiatric disorders (NPD). A model for internet-based support and coaching aimed at young people with ASD and/or ADHD was developed and tested at three treatment sites in western Sweden. The implementation was analyzed against an inventory according to which implementations are more likely to be successful if an intervention: 1) has advantages compared to other existing methods, 2) matches the individual and organizational values, norms and work practices of its recipients, 3) is perceived as easy to use, and 4) is adaptable to local conditions and the recipients’ needs. Data were collected through group interviews with professionals involved in the implementation of the intervention. The implementation of the intervention showed promising results on measures such as access, delivery/quality of healthcare services, and equality of distribution of healthcare services. The identified impediments to successful implementation related to a wide range of factors and levels, including the design of the intervention, technical issues, attitudes of staff, organizational culture, and organizational structure at the implementation sites in terms of patient stock, work division, and resource allocation. The results are consistent with previous studies that stress the need for multi-component implementation strategies. 展开更多
关键词 ASD ADHD internet-based SUPPORT IMPLEMENTATION INTERVENTION
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Internet-based event synchronization communication driven telerobotics
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作者 XieXiaohui SunLining DuZhijiang CaiHegao 《Journal of Systems Engineering and Electronics》 SCIE EI CSCD 2005年第2期341-345,共5页
Based on QoS (quality of service) parameters: time delay, jitter, bandwidth and package loss. As time delay in the Internet is variable, it is hard to compensate it by traditional methods. Event synchronization commun... Based on QoS (quality of service) parameters: time delay, jitter, bandwidth and package loss. As time delay in the Internet is variable, it is hard to compensate it by traditional methods. Event synchronization communication driven method is proposed to overcome the negative effects induced by time delay. This method is a non-time based method and it can get rid of the effects of time in the control loop of telerobotics. Stability, transparency and synchronization can be maintained in it by event-driven method. Multimodal enhanced telerobotics is put forward with its feedback including force, video, audio and temperature etc. The use of multimodal feedback improves the efficiency and safety of the whole system. Synchronization in multimodal feedback is hard to ensure and event-driven method is also good for it. Experiments on an Internet-based shaft-hole assemblage system show good results by using event synchronization communication driven method and UDP protocol. 展开更多
关键词 internet-based telerobotics time delay UDP protocol event synchronization communication driven method.
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Effects of Internet-Based Acceptance and Commitment Therapy (IACT) on Adolescents: A Systematic Review and Meta-Analysis
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作者 Jing Wang Shuanghu Fang 《International Journal of Mental Health Promotion》 2023年第4期433-448,共16页
Objectives:This study reviewed published randomized controlled trials(RCTs)and evaluated the efficacy of internet-based acceptance and commitment therapy(IACT)on adolescent mental health.Methods:Searches were conducte... Objectives:This study reviewed published randomized controlled trials(RCTs)and evaluated the efficacy of internet-based acceptance and commitment therapy(IACT)on adolescent mental health.Methods:Searches were conducted in PubMed,ProQuest,APA(PsycNET/PsycINFO),and Web of Science from inception to Jan-uary 2022 to identify RCTs evaluating the effects of IACT on adolescents.The included studies were assessed for quality and risk of bias.This study was performed using the standard mean difference and associated 95%confidence interval of effective measures.Review Manager 5.4 software was adopted to calculate the effect size.Results:Compared to adolescents in control groups,those in the IACT groups showed some improvement in the efficacy of depression symptoms(SMD=−0.24,95%CI=[−0.44,−0.05],p=0.01)and had a small but sig-nificant effect on reducing experiential avoidance(SMD=−0.24,95%CI=[−0.46,−0.01],p=0.04).However,the effect size on anxiety did not reach the threshold(SMD=−0.18,95%CI=[−0.27,−0.09],p<0.0001).In addition,there were no significant differences in stress and well-being compared to those of the control group.Compared with universal adolescents,IACT was found to have a more significant therapeutic effect on targeted adolescents.Conclusions:IACT is effective in adolescent mental health interventions,but its clinical reliability and significant efficacy are limited,and more rigorous RCTs are needed in future studies. 展开更多
关键词 internet-based acceptance and commitment therapy adolescents mental health META-ANALYSIS
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Research on customer knowledge transferring mode and mechanism in internet-based new product development
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作者 FANG Lan 《Chinese Business Review》 2008年第9期28-31,共4页
With the development of internet technology, customers play more and more important roles in new product development. The paper defines customer knowledge; then analyses the modes of customer knowledge transferring ba... With the development of internet technology, customers play more and more important roles in new product development. The paper defines customer knowledge; then analyses the modes of customer knowledge transferring based on SECI model and information emission model. Finally customer knowledge transferring mechanism is discussed. 展开更多
关键词 customer knowledge knowledge transferring internet-based product development
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A Dual-Channel Secure Transmission Scheme for Internet-Based Networked Control Systems
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作者 田德振 戴亚平 +1 位作者 胡敬炉 平泽宏太郎 《Journal of Beijing Institute of Technology》 EI CAS 2010年第2期183-190,共8页
Two significant issues in Internet-based networked control systems ( INCSs), transport performance of different protocols and security breach from Internet side, are investigated. First, for improving the performanc... Two significant issues in Internet-based networked control systems ( INCSs), transport performance of different protocols and security breach from Internet side, are investigated. First, for improving the performance of data transmission, user datagram protocol (UDP) is adopted as the main stand for controllers and plants using INCSs. Second, a dual-channel secure transmission scheme (DCSTS)based on data transmission characteristics of INCSs is proposed, in which a raw UDP channel and a secure TCP (transmission control protocol) connection making use of SSL/TLS (secure sockets layer/transport layer security) are included. Further, a networked control protocol (NCP) at application layer for supporting DCSTS between the controllers and plants in INCSs is designed, and it also aims at providing a universal communication mechanism for interoperability of devices among the networked control laboratories in Beijing Institute of Technology of China, Central South University of China and Tokyo University of Technology of Japan. By means of a networked single-degree-of-free- dom robot arm, an INCS under the new protocol and security environment is created. Compared with systems such as IPSec or SSL/TLS, which may cause more than 91% network throughput deduction, the new DCSTS protocol may yield results ten times better, being just 5.67%. 展开更多
关键词 internet-based networked control system (INCS) networked control protocol(NCP) dual-channel secure transmission scheme(DCSTS)
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An Analysis of Internet-based Approaches to New Teacher Induction in Canada
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作者 Jinbo Yan 《教育研究前沿(中英文版)》 2020年第1期11-15,共5页
Induction and mentoring programs aim to help new school teachers survive and thrive in their teaching profession.Among each juris-diction of Canada,there are different programs and most of them are characterized by In... Induction and mentoring programs aim to help new school teachers survive and thrive in their teaching profession.Among each juris-diction of Canada,there are different programs and most of them are characterized by Internet-based supports.On the websites of the provincial departments of education or teachers’organizations,well-designed webpages are set for induction programs,special portals are designed for new teachers,and documents relating to early career teaching are provided.Even on some local school districts’websites,induction programs and relevant documents are easily accessed.Based on the above facts,this paper also analyzes the advantages and limitations of those Internet-based approaches in Canadian teacher in-duction activities. 展开更多
关键词 Teacher Induction internet-based Approach New Teachers CANADA
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On Applying Internet-based Teaching in College Oral English Teaching
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作者 覃成海 陈满平 《海外英语》 2012年第6X期25-27,共3页
Spoken language is such an important part in learning English that College English Curriculum Requirement considers promoting the students' spoken language as one of the most important goals in teaching English.Ho... Spoken language is such an important part in learning English that College English Curriculum Requirement considers promoting the students' spoken language as one of the most important goals in teaching English.However,at present,the students' oral expression competence is not so good in colleges.It is urgent to improve the quality of oral English classes and solve mute English of the students in colleges.Internet-based teaching is the new teaching mode adapting to the trend of the times.Internet provides excellent interactive methods for inquiry learning mode and provides the possibility for constructing an open learning environment. 展开更多
关键词 internet-based TEACHING ORAL ENGLISH TEACHING meth
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Analysis of Non-English Major College Students’Test Anxiety in CET-4
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作者 Baohua Zhang 《Open Journal of Applied Sciences》 2024年第5期1380-1399,共20页
Test anxiety, which means individuals show excessive worry, nervousness and anxiety in examination contexts, is becoming a more and more common phenomenon. A moderate level of test anxiety will motivate students while... Test anxiety, which means individuals show excessive worry, nervousness and anxiety in examination contexts, is becoming a more and more common phenomenon. A moderate level of test anxiety will motivate students while a too high or too low level of test anxiety will influence students’ academic performance and their cognitive abilities. Most present researches are focused on secondary school students or on the final exam of a specific school. Few researches on college students and standard tests can be found. Therefore, the researcher took 255 college students as samples to investigate the test anxiety level of non-English majors, their attitudes towards different test tasks (ATDTT) and the correlation between them. The results of the research are as follows: Firstly, the students from non-English majors are at the lower of a moderate test anxiety level in CET-4 and there is no significant gender difference. Secondly, among the four sections in CET-4, students are most positive in writing, less positive in translation and reading, and the least positive in listening. Thirdly, students’ ATDTT in CET-4 are negatively correlated with total test anxiety, cognitive anxiety and emotional anxiety. The researcher hopes this research can offer some help to teachers and students in need. 展开更多
关键词 Test Anxiety cet-4 Test Students’ ATDTT in cet-4
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大学英语教学中翻译写作教学模式的有效性——基于CET翻译题成绩的初步实验研究
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作者 王小慧 周旭 《萍乡学院学报》 2024年第2期108-111,共4页
当前,大学英语四、六级考试汉译英主题倾向于中国文化相关,成为应考难点之一。将翻译写作教学模式运用至大学英语教学,特别是针对CET翻译题型的教学,或能有效应对这一难点。根据一项于独立学院选取非英语专业英语水平相近的两个自然班... 当前,大学英语四、六级考试汉译英主题倾向于中国文化相关,成为应考难点之一。将翻译写作教学模式运用至大学英语教学,特别是针对CET翻译题型的教学,或能有效应对这一难点。根据一项于独立学院选取非英语专业英语水平相近的两个自然班展开的初步对比实验研究发现,对比实验B班,实验A班采纳翻译写作教学模式,通过句法分析训练、写作与背诵训练、中英语序转换训练、拆句与组句训练,一定程度上消除了应考畏难感,CET4模考成绩较有明显提高,翻译能力有所提升。这一研究结果对大学英语翻译与写作教学均有一定指导意义,扩展了翻译写作学理论的应用范围与研究视野。 展开更多
关键词 翻译写作学 翻译写作教学模式 大学英语四级 翻译能力
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转向架构架表面缺陷的磁粉探伤检测算法研究
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作者 刘晓东 戴吉 +3 位作者 杨帆 李花 赵兴 卞佳楠 《测控技术》 2025年第1期41-50,共10页
针对转向架构架磁粉探伤缺陷识别环节人工目测效率低的现状,提出一种基于YOLO-CET(You Only Look Once based on CoTNet-Efficient-Transformer blocks)的探伤图像缺陷自动识别算法,实现对构架表面真伪缺陷的智能识别。以YOLOv5(You Onl... 针对转向架构架磁粉探伤缺陷识别环节人工目测效率低的现状,提出一种基于YOLO-CET(You Only Look Once based on CoTNet-Efficient-Transformer blocks)的探伤图像缺陷自动识别算法,实现对构架表面真伪缺陷的智能识别。以YOLOv5(You Only Look Once version 5)为基础模型,在骨干特征提取网络引入轻量化CoTNet(Contextual Transformer Networks)网络层,实现缺陷特征的多尺度融合与提取。加入高效通道注意力机制,在不增加网络计算量的同时提高模型的鲁棒性和泛化性。增加一个小尺寸缺陷检测头用于减轻不同尺寸特征带来的尺度方差影响,同时引入视觉自注意力模块,增强小目标缺陷的抓取识别能力。利用自建的构架表面缺陷探伤数据集进行测试,结果表明,与YOLOv5相比,所提出的YOLO-CET使检测平均精度提升33.8%,F1-Score提升0.26,浮点运算量仅增加1.5 B,该模型可实现缺陷的自动检测,有效解决背景误判、细小缺陷漏检等问题。 展开更多
关键词 转向架构架 磁粉探伤 缺陷检测 YOLO-cet 注意力机制
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