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Optimal control of oscillation wave energy system using velocity premonition 被引量:2
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作者 CUI Xiao 《Instrumentation》 2015年第2期28-32,共5页
Recently ocean wave energy draw much more attention for its widespread,abundant and highly energy flux density properties.Extracting energy from incident wave however,is limited for the random and unstable power input... Recently ocean wave energy draw much more attention for its widespread,abundant and highly energy flux density properties.Extracting energy from incident wave however,is limited for the random and unstable power input.Motion control for WEC is a promising method to improve the energy absorption and some practical applications are also verified such as latching control.In this paper,an active control strategy is proposed to achieve maximum energy capture.The mathematical description shows that the active control has the characteristic of anti-causal and the wave premonition is necessary for controller design.But the fact of premonition time horizon is still unclear.In this paper,the premonition nature is described mathematically based on hydrodynamic theory.Furthermore,a simulation is also performed to study the impacting of premonition time horizon on WEC's properties and give a more insightful understanding of WEC active control. 展开更多
关键词 WAVE energy converter(WEC) active control premonition time
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New Issue to Modeling Intentionality in the Field of Consciousness
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作者 Pierre R. Blanquet 《Journal of Behavioral and Brain Science》 2015年第9期348-367,共20页
Brentano in 1870s was the first to introduce intentionality to mean “conscious of”. At the end of the 1960s, a version of this view was developed by analytic American philosophy to construct a theory of meaningful l... Brentano in 1870s was the first to introduce intentionality to mean “conscious of”. At the end of the 1960s, a version of this view was developed by analytic American philosophy to construct a theory of meaningful language. That led Dennett to claim that intentionality was mainly a feature of sentence, not mental states. In contrast, Searle in 1990s rejected the Brentanian thesis and explained intentionality by a biological naturalism. Thereafter, radical eliminativists such as Churchland claimed that all philosophical arguments merited replacement by neuroscientific knowledge. Unfortunately, very few neurophysiological studies attempted to scientifically tackle the problem raised by intentionality. The issue now emerging is a new conception of intentionality based on phenomenological, neurobiological and quantum theories, such as: 1) the notion of “intentional arc” proposed in the philosophy of Merleau-Ponty;2) the neurobiological and quantum model of Freeman, in which self-organizing pathways are accompanied by quantum transitions in controlling intentionality in brain;3) the recent hypothesis that some visuo-motor neurons would be involved in controlling these self-organized pathways;4) the quantum models of Vitiello and Globus, in which a thermofield (dissipative) system governs the dynamic dialog of dual quantum modes between environment and brain. Based on this conception of mind-world interactions, it implicitly appears that intentionality might be a fundamental force which draws us irreversibly towards the future. An alternative hypothesis based on this promising proposal is argued. 展开更多
关键词 intentionality Models CONSCIOUSNESS Quantum Theories CORTICAL SELF-ORGANIZED Systems Visuo-Motor NEURONS
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Neo-Empiricism and Intentionality
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作者 Steven Gamboa 《Journal of Philosophy Study》 2012年第2期81-91,共11页
A revival of empiricist theories in cognitive psychology, neuropsychology, and philosophy has been led by figures such as Antonio Damasio (1994), Lawrence Barsalou (1999), George Lakoff (1987), and Jesse Prinz ... A revival of empiricist theories in cognitive psychology, neuropsychology, and philosophy has been led by figures such as Antonio Damasio (1994), Lawrence Barsalou (1999), George Lakoff (1987), and Jesse Prinz (2002; 2004). Their work has served to connect familiar empiricist approaches to thought and reason with contemporary cognitive psychology and neuroscience. The work of Prinz is of special philosophical significance since it aims to bring together the work of neo-empirically minded theorists in the cognitive and neuro-sciences with main themes found in contemporary philosophical theories of intentionality and reference. In this paper, I examine Prinz's efforts to synthesize a neo-empiricist theory of concepts with contemporary semantic theories of reference and intentionality. In part one, I analyze Prinz's approach in some depth. In part two, I raise a question concerning the origins of intentionality. Specifically, I am interested in examining the minimum cognitive prerequisites for intentionality within Prinz's theory of perception-based representation. In part three, I raise a problem case for Prinz's account of the requirements for intentionality, and propose an adjustment in Prinz's account to meet the challenge of the objection. 展开更多
关键词 neo-empiricism concepts intentionality OBJECTIVITY Jesse Prinz Tyler Burge
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A multi target intention recognition model of drones based on transfer learning
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作者 WAN Shichang LI Hao +2 位作者 HU Yahui WANG Xuhua CUI Siyuan 《Journal of Systems Engineering and Electronics》 2025年第5期1247-1258,共12页
To address the issue of neglecting scenarios involving joint operations and collaborative drone swarm operations in air combat target intent recognition.This paper proposes a transfer learning-based intention predicti... To address the issue of neglecting scenarios involving joint operations and collaborative drone swarm operations in air combat target intent recognition.This paper proposes a transfer learning-based intention prediction model for drone formation targets in air combat.This model recognizes the intentions of multiple aerial targets by extracting spatial features among the targets at each moment.Simulation results demonstrate that,compared to classical intention recognition models,the proposed model in this paper achieves higher accuracy in identifying the intentions of drone swarm targets in air combat scenarios. 展开更多
关键词 DRONE intention recognition deep learning
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Promoting Green Choices:Vietnamese Students’Intentions to Use Electric Taxi Services and Sustainability Factors
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作者 Dan Thi Thanh Nguyen Ngoc Thi Kim Pham 《Journal of Environmental & Earth Sciences》 2025年第6期157-170,共14页
Sustainable development has become a critical global priority,and green transportation solutions,such as electric taxis,play a vital role in achieving this goal.This study examines the factors influencing students’in... Sustainable development has become a critical global priority,and green transportation solutions,such as electric taxis,play a vital role in achieving this goal.This study examines the factors influencing students’intentions to adopt electric taxi services in Hanoi,Vietnam,as a step toward sustainable urban mobility.We surveyed 573 students and ana-lyzed key determinants using reliability tests,exploratory factor analysis(EFA),and linear regression.The results indi-cate that four factors significantly influence adoption intentions:Perceived Usefulness and Sustainability,Price,Brand Awareness,and Service Quality.Among these,Perceived Usefulness and Sustainability had the strongest positive im-pact,while Service Quality exerted the weakest influence.Notably,Habit and Ease of Use&Transaction Convenience were found to be statistically insignificant in the final model.These findings provide practical implications for business-es and policymakers aiming to use electric taxi adoption.To enhance appeal,stakeholders should emphasize environ-mental benefits,competitive pricing,and brand recognition while improving service reliability.By addressing these fac-tors,electric taxi services can accelerate the transition to sustainable transportation,aligning with global climate goals and transforming urban mobility.This study offers actionable insights for encouraging greener travel behaviors among students,a key demographic for long-term sustainability impact. 展开更多
关键词 intention to Use Electric Taxi STUDENT HANOI VIETNAM
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Deterministic Modeling for Evaluating Consumers’ Purchasing Intentions Towards Cosmetic Brands in Bangladesh: Evidence from SEM Approach
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作者 Meher Neger Abu Obida Rahid Fahima Akter 《Chinese Business Review》 2025年第1期29-48,共20页
Background of the study:The Bangladeshi cosmetics market has witnessed significant growth in recent years,driven by changing consumer lifestyles,increased disposable incomes,and rising awareness of personal grooming.T... Background of the study:The Bangladeshi cosmetics market has witnessed significant growth in recent years,driven by changing consumer lifestyles,increased disposable incomes,and rising awareness of personal grooming.The study investigates the impact of content cues which influence on purchasing intention towards cosmetic brands in Bangladesh.Purpose:The basic purpose of this study was to evaluate the factors influencing consumers’purchasing intentions for cosmetic brands in Bangladesh.Specifically,the study explored the roles of various cosmetic-related attributes and their impact on purchasing intentions within the context of Bangladesh’s cosmetic industry.Research methods:A quantitative research approach was adopted,and data were collected through a structured survey targeting Bangladeshi consumers who frequently engage with cosmetic products.All the valid responses were analyzed using SmartPLS 4.0 to perform structural equation modeling.Research findings:The findings revealed that trust in cosmetic brands and competitive pricing significantly influence consumers’purchasing intentions,highlighting the importance of fostering trust and affordability.However,certain constructs,such as ethnocentric tendencies and concerns about ingredient safety,showed limited impact on consumers’decisions.Conclusion:This study contributes to the existing literature by offering empirical insights into the Bangladeshi context,particularly within the rapidly growing cosmetics market.The findings provide actionable recommendations for cosmetic brands aiming to strengthen their market position through trust-building initiatives,competitive pricing strategies,and educational campaigns to enhance consumer awareness.These insights are particularly relevant for marketing practitioners seeking to understand and respond to the unique dynamics of the Bangladeshi cosmetics industry. 展开更多
关键词 brand credibility consumer ethnocentrism ingredient safety price cosmetic brands purchasing intention
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Durational Exposure to Particulate Matter and Changes in Fertility Intentions:A Study of Adults in China
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作者 Jia-yu Wang Xin Yun +6 位作者 Rui Qu Wei-qian Zhang Jia Liang Yu Guan Dong-dong Tang Yu Chen Tai-lang Yin 《Current Medical Science》 2025年第2期363-372,共10页
Objective The effects of prolonged exposure to persistently elevated atmospheric pollutants,commonly termed air pollution waves,on fertility intentions remain inadequately understood.This study aims to investigate the... Objective The effects of prolonged exposure to persistently elevated atmospheric pollutants,commonly termed air pollution waves,on fertility intentions remain inadequately understood.This study aims to investigate the association between particulate matter(PM)exposure and fertility intentions.Methods In this nationwide cross-sectional study,we analyzed data from 10,747 participants(5496 females and 5251 males).PM waves were defined as periods lasting 3‒6 consecutive days during which the daily average concentrations exceeded China’s Ambient Air Quality Standards Grade II thresholds(PM2.5>75μg/m3 and PM10>150μg/m3).We employed multivariate logistic regression models to assess the association between exposure to PM waves and fertility intentions.Results Significant inverse associations were detected between exposure to PM2.5 wave events(characterized by concentrations exceeding 75μg/m3 for durations of 4‒6 days,P<0.05)and PM10 wave events(defined as concentrations exceeding 150μg/m3 for 6 consecutive days,P<0.05)and fertility intentions among females.In contrast,neither the PM2.5 wave nor the PM10 wave events demonstrated statistically significant correlations with fertility intentions in males(P>0.05 for all comparisons).The potentially susceptible subgroup was identified as females aged 20–30 years.Conclusions Our results provide the first evidence that PM2.5 and PM10 waves are associated with a reduction in female fertility intentions,offering critical insights for the development of public health policies and strategies aimed at individual protection. 展开更多
关键词 Fine particulate matter wave Air pollution Fertility intention
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A Review of Content Marketing’s Influence on Consumers’ Purchase Intention in Live-streaming E-commerce
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作者 Yuan Wang 《Proceedings of Business and Economic Studies》 2025年第1期55-59,共5页
In the contemporary digital landscape,the proliferation of information has led to an increasing diversity of channels through which consumers obtain information,resulting in a gradual transformation of shopping habits... In the contemporary digital landscape,the proliferation of information has led to an increasing diversity of channels through which consumers obtain information,resulting in a gradual transformation of shopping habits.Consumers now frequently rely on external sources to make well-informed purchasing decisions,leading to the emergence of live shopping as a prominent avenue for gathering product information and completing transactions.E-commerce live streaming has experienced rapid growth,leveraging its ability to generate traffic and capture consumer attention.The integration of content and live streaming not only meets users’psychological needs but also facilitates seamless communication between buyers and sellers.From the perspective of content marketing typologies,this paper examines content marketing across three key dimensions:informational content,entertainment content,and emotional content.It further explores the impact of content marketing on consumers’purchase intentions within the context of e-commerce live streaming. 展开更多
关键词 Content marketing E-commerce live streaming Consumer purchase intention
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Workplace bullying and its association with secondary traumatic stress and turnover intention among emergency and critical care nurses
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作者 Sandi Mashsha Ahmad Rayan +3 位作者 Manal Hassan Baqeas Suhair Hussni Al-Ghabeesh Yasmeen Abu Sumaqa Nour Ali Assaf Alrida 《Frontiers of Nursing》 2025年第1期79-90,共12页
Objective:This study aims to identify the prevalence of bullying in the workplace and to examine its association with turnover(TO)intention and secondary traumatic stress(STS)among Jordanian nurses employed in Emergen... Objective:This study aims to identify the prevalence of bullying in the workplace and to examine its association with turnover(TO)intention and secondary traumatic stress(STS)among Jordanian nurses employed in Emergency Departments(EDs)and critical care units(CCUs).Nurses employed in the EDs and CCUs are exposed to high levels of bullying behaviors that may contribute to STS,leading to high rates of TO.Methods:A descriptive cross-sectional design was used.A sample of 150 Jordanian nurses working in CCUs and EDs completed the study.Data collection was performed using the Demographical Questionnaire,the Negative Acts Questionnaire-Revised(NAQ-R),ProQOL scale,and TO scale.The IBM SPSS software was used to analyze data.Results:About 10.7%and 89.3%were categorized as“occasionally bullied”and“victims of workplace bullying”subsequently.Workplace bullying was positively associated with TO intention(r=0.46,P<0.001)and STS(r=0.36,P<0.001).TO was positively associated with STS(r=0.36,P<0.001).Bullying was a unique significant predictor of TO intention(t=4.59,B=0.34,P<0.001)and STS(t=4.15,B=0.34,P<0.001).Conclusions:Bullying behavior has negative adversarial effects on TO and the experience of STS.The prevalence of bullying behavior in the EDs and CCUs remains high despite the increasing awareness of its negative impacts.Healthcare organizations should put systems in place to ensure that zero-tolerance policy are monitored in terms of the effectiveness of its implementation. 展开更多
关键词 critical care units emergency department STS turnover intention workplace bullying
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Facial recognition payment is cool:coolness,inspiration,and customer continuance intention to use facial recognition payment
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作者 Wei Gao Ning Jiang Qingqing Guo 《Financial Innovation》 2025年第1期948-969,共22页
Facial recognition payment(FRP),a new method of contactless payment,has attracted considerable attention over the past few years.However,the research on this topic remains nascent.This study assessed the drivers of cu... Facial recognition payment(FRP),a new method of contactless payment,has attracted considerable attention over the past few years.However,the research on this topic remains nascent.This study assessed the drivers of customers’FRP continuance intention from the perspectives of coolness and inspiration.We use online survey data from 610 Chinese FRP customers as the basis for our conceptual model.The results show that the coolness factors of subculture,attractiveness,utility,and originality have positive and significant effects on customers’inspired-by states and that subculture and utility also promote inspired-to.Inspired-by is positively associated with inspiredto,which in turn enhances customers’FRP continuance intention.Furthermore,the relationship between inspired-to and FRP continuance intention is negatively moderated by financial risk.In addition to contributing to the literature on FRP,coolness,and customer inspiration,this study offers several suggestions for implementing and developing FRP systems. 展开更多
关键词 Facial recognition payment Coolness Customer inspiration Perceived risk Continuance intention
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Factors of intention to learning transfer in apprenticeships:Results and implications of a chain mediation model
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作者 Xin-Xin Chen Young-Sup Hyun Wen-Hao Chen 《Journal of Psychology in Africa》 2025年第3期393-401,共9页
This study utilized a sequential mediating model to examine the role of motivation to learn and transfer selfefficacy in the relationships between perceived content validity,mentoring function,continuous learning work... This study utilized a sequential mediating model to examine the role of motivation to learn and transfer selfefficacy in the relationships between perceived content validity,mentoring function,continuous learning work culture and intention to transfer learning.The sample comprized 429 final-year apprentices in Guangdong province,China(females=69.9%,Engineering&Medicine=69%,mean age=20.99,SD=1.60).The apprentices completed standardized measures of motivation to learn,transfer self-efficacy perceived content validity,mentoring function,and continuous learning work culture.Structural equation modeling was used to analyze the data.Results showed perceived content validity,mentoring function,continuous learning culture to predict intention to transfer learning.Of these factors,perceived content validity was the strongest predictor of intention to transfer learning.Of these factors,perceived content validity was the most influential predictor of intention to transfer learning.The motivation to learn and transfer self-efficacy sequentially mediated the relationship between mentoring function and intention to learning transfer to be stronger than by either alone.Although perceived content validity and continuous learning culture exhibited no significant direct effects on intention to transfer learning,they demonstrated positive indirect associations with intention to transfer via motivation to learn and transfer self-efficacy.These study findings extend the applications of the learning transfer framework to individuals undergoing apprenticeship training which also would apply to other a long-term work-based learning programs. 展开更多
关键词 intention to learning transfer APPRENTICESHIP transfer self-efficacy motivation to learn mentoring function
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Target intention prediction of air combat based on Mog-GRU-D network under incomplete information
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作者 CHEN Jun SUN Xiang +1 位作者 XUE Zhe ZHANG Xinyu 《Journal of Systems Engineering and Electronics》 2025年第4期972-984,共13页
High complexity and uncertainty of air combat pose significant challenges to target intention prediction.Current interpolation methods for data pre-processing and wrangling have limitations in capturing interrelations... High complexity and uncertainty of air combat pose significant challenges to target intention prediction.Current interpolation methods for data pre-processing and wrangling have limitations in capturing interrelationships among intricate variable patterns.Accordingly,this study proposes a Mogrifier gate recurrent unit-D(Mog-GRU-D)model to address the com-bat target intention prediction issue under the incomplete infor-mation condition.The proposed model directly processes miss-ing data while reducing the independence between inputs and output states.A total of 1200 samples from twelve continuous moments are captured through the combat simulation system,each of which consists of seven dimensional features.To bench-mark the experiment,a missing valued dataset has been gener-ated by randomly removing 20%of the original data.Extensive experiments demonstrate that the proposed model obtains the state-of-the-art performance with an accuracy of 73.25%when dealing with incomplete information.This study provides possi-ble interpretations for the principle of target interactive mecha-nism,highlighting the model’s effectiveness in potential air war-fare implementation. 展开更多
关键词 intention prediction incomplete information gate recurrent unit(GRU) Mogrifier interaction mechanism.
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Research on the Behavioral Intention of Health and Wellness Tourism for Elderly People in Chongqing Based on ETPB Theory
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作者 Nan Yuan Sheng Zhong +1 位作者 Qi Wang Bin Tang 《Proceedings of Business and Economic Studies》 2025年第3期353-361,共9页
This study is based on the Extended Theory of Planned Behavior(ETPB)and focuses on the elderly population in the main urban area of Chongqing to explore their intentions and influencing factors regarding health and we... This study is based on the Extended Theory of Planned Behavior(ETPB)and focuses on the elderly population in the main urban area of Chongqing to explore their intentions and influencing factors regarding health and wellness tourism behavior.Data was collected through questionnaire surveys and field research,and SPSS 26.0 and Amos 29.0 software were used for reliability,validity analysis,and structural equation modeling testing.The study shows that behavioral attitude,perceived behavior control,and the context of health and wellness tourism have a significant positive impact on the elderly’s intentions regarding health and wellness tourism behavior,while the influence of subjective norms is not significant.In addition,subjective norms have a significant positive effect on behavioral attitudes and perceived behavioral control.Based on the research conclusions,suggestions are made to strengthen the behavioral intention of elderly tourists to participate in health and wellness tourism. 展开更多
关键词 Health and wellness tourism Theory of Planned Behavior ELDERLY Behavioral intention
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Modeling the significance of unified theory of acceptance and use of technology in predicting the intention and usage of eCNY
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作者 Yue Ma Abdullah Al Mamun +1 位作者 Mohammad Masukujjaman Roslan Ja’afar 《Financial Innovation》 2025年第1期504-535,共32页
The introduction of the digital renminbi(eCNY)by the People’s Bank of China serves as a means for the central bank to effectively comprehend macroeconomic dynamics and enhance payment infrastructure within the domest... The introduction of the digital renminbi(eCNY)by the People’s Bank of China serves as a means for the central bank to effectively comprehend macroeconomic dynamics and enhance payment infrastructure within the domestic market.Among the pioneering digital currencies,the eCNY is at the forefront of technological research and development,pilot implementation,and the establishment of a robust system.Thus,employing the unified theory of acceptance and use of technology,this study aims to explore the factors shaping the adoption of the eCNY and to determine the mediating effects of intention toward the eCNY and the moderating role of age and gender among various relationships.A cross-sectional survey methodology was deployed to collect data from pilot communities situated within the Yangtze River Delta,Pearl River Delta,and Beijing–Tianjin–Hebei regions.The empirical analysis comprised 809 valid online questionnaires,and the examination was conducted through structural equation modeling employing the partial least squares technique,ultimately subjecting the conceptual model to a comprehensive assessment.The results for intention to use the eCNY indicate that performance expectancy,effort expectancy,social influence,and perceived government policy have significant effects.Facilitating conditions and intentions toward the eCNY positively influenced its actual use.According to the findings of this study,age and sex did not moderate the effect of each hypothesis on the intention to use in the research model.This study breaks new ground by investigating the adoption of the eCNY,a novel form of currency,highlighting its multifaceted nature and providing empirical evidence for a comprehensive model encompassing psychological,social,and contextual factors.This study employs social surveys to identify obstacles in the process of promoting the widespread adoption of the eCNY and offers suggestions to the central bank and government to increase user enthusiasm and decrease user perceptions of risk,thereby promoting its widespread adoption. 展开更多
关键词 Digital currency eCNY intention and actual usage Unified theory of acceptance Use of technology
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Student Satisfaction and Entrepreneurial Intention Based on Entrepreneurship Education in Higher Education Institutions
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作者 Yan ZHU Yi'nan LI +1 位作者 Yanfei LI Cuijuan SHENG 《Asian Agricultural Research》 2025年第5期46-50,54,共6页
A survey was conducted among 616 students from six private undergraduate universities in Hefei City,Anhui Province.Using Likert 5-point scale measurements and SPSS 27.0 for data analysis,the study revealed that studen... A survey was conducted among 616 students from six private undergraduate universities in Hefei City,Anhui Province.Using Likert 5-point scale measurements and SPSS 27.0 for data analysis,the study revealed that students with prior entrepreneurial experience demonstrated lower satisfaction with university entrepreneurship education,and their past entrepreneurial attempts showed a negative correlation with future entrepreneurial intentions.However,high-quality entrepreneurship education exhibited a positive mediating role in this relationship.This study reveals the intrinsic mechanisms through which personal experiences and entrepreneurship education influence college students'entrepreneurial intentions,providing theoretical references for higher education institutions to optimize entrepreneurship education programs and enhance students'entrepreneurial motivations.These findings will contribute to the national strategy of"promoting employment through entrepreneurship". 展开更多
关键词 Entrepreneurial experience of college students Innovation and entrepreneurship education Entrepreneurial intention
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A Data-Enhanced Deep Learning Approach for Emergency Domain Question Intention Recognition in Urban Rail Transit
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作者 Yinuo Chen Xu Wu +1 位作者 Jiaxin Fan Guangyu Zhu 《Computers, Materials & Continua》 2025年第7期1597-1613,共17页
The consultation intention of emergency decision-makers in urban rail transit(URT)is input into the emergency knowledge base in the form of domain questions to obtain emergency decision support services.This approach ... The consultation intention of emergency decision-makers in urban rail transit(URT)is input into the emergency knowledge base in the form of domain questions to obtain emergency decision support services.This approach facilitates the rapid collection of complete knowledge and rules to form effective decisions.However,the current structured degree of the URT emergency knowledge base remains low,and the domain questions lack labeled datasets,resulting in a large deviation between the consultation outcomes and the intended objectives.To address this issue,this paper proposes a question intention recognition model for the URT emergency domain,leveraging knowledge graph(KG)and data enhancement technology.First,a structured storage of emergency cases and emergency plans is realized based on KG.Subsequently,a comprehensive question template is developed,and the labeled dataset of emergency domain questions in URT is generated through the KG.Lastly,data enhancement is applied by prompt learning and the NLP Chinese Data Augmentation(NLPCDA)tool,and the intention recognition model combining Generalized Auto-regression Pre-training for Language Understanding(XLNet)and Recurrent Convolutional Neural Network for Text Classification(TextRCNN)is constructed.Word embeddings are generated by XLNet,context information is further captured using Bidirectional Long Short-Term Memory Neural Network(BiLSTM),and salient features are extracted with Convolutional Neural Network(CNN).Experimental results demonstrate that the proposed model can enhance the clarity of classification and the identification of domain questions,thereby providing supportive knowledge for emergency decision-making in URT. 展开更多
关键词 Emergency knowledge base for urban rail transit emergency domain questions intention recognition knowledge graph data enhancement
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Motion intention recognition using surface electromyography and arrayed flexible thin-film pressure sensors
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作者 BU Lingyu YIN Xiangguo +1 位作者 LIN Mingxing LIU Jiahe 《Journal of Measurement Science and Instrumentation》 2025年第4期486-497,共12页
Motion intention recognition is considered the key technology for enhancing the training effectiveness of upper limb rehabilitation robots for stroke patients,but traditional recognition systems are difficult to simul... Motion intention recognition is considered the key technology for enhancing the training effectiveness of upper limb rehabilitation robots for stroke patients,but traditional recognition systems are difficult to simultaneously balance real-time performance and reliability.To achieve real-time and accurate upper limb motion intention recognition,a multi-modal fusion method based on surface electromyography(sEMG)signals and arrayed flexible thin-film pressure(AFTFP)sensors was proposed.Through experimental tests on 10 healthy subjects(5 males and 5 females,age 23±2 years),sEMG signals and human-machine interaction force(HMIF)signals were collected during elbow flexion,extension,and shoulder internal and external rotation.The AFTFP signals based on dynamic calibration compensation and the sEMG signals were processed for feature extraction and fusion,and the recognition performance of single signals and fused signals was compared using a support vector machine(SVM).The experimental results showed that the sEMG signals consistently appeared 175±25 ms earlier than the HMIF signals(p<0.01,paired t-test).In offline conditions,the recognition accuracy of the fused signals exceeded 99.77%across different time windows.Under a 0.1 s time window,the real-time recognition accuracy of the fused signals was 14.1%higher than that of the single sEMG signal,and the system’s end-to-end delay was reduced to less than 100 ms.The AFTFP sensor is applied to motion intention recognition for the first time.And its low-cost,high-density array design provided an innovative solution for rehabilitation robots.The findings demonstrate that the AFTFP sensor adopted in this study effectively enhances intention recognition performance.The fusion of its output HMIF signals with sEMG signals combines the advantages of both modalities,enabling real-time and accurate motion intention recognition.This provides efficient command output for human-machine interaction in scenarios such as stroke rehabilitation. 展开更多
关键词 upper limb rehabilitation robot motion intention recognition sEMG signal arrayed flexible thin-film pressure sensor humanmachine interaction force
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师生交往意向性的教育意蕴、现实困境与纾解路径
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作者 李俏丽 刘铁芳 《教育研究与实验》 北大核心 2026年第1期107-118,共12页
师生交往意向性普遍存在于每一师生个体的意识之中,是一个重要但未得到重视的问题。在个体尚未进行师生交往、建立师生关系之前,师生交往意向性便已存在,是师生关系的前结构,是师生间彼此指涉的内在心理倾向和交往态势。于受教育者而言... 师生交往意向性普遍存在于每一师生个体的意识之中,是一个重要但未得到重视的问题。在个体尚未进行师生交往、建立师生关系之前,师生交往意向性便已存在,是师生关系的前结构,是师生间彼此指涉的内在心理倾向和交往态势。于受教育者而言,师生交往意向性的敞开表现为一种“向师性”,进而呈现出“向学性”的生命特质。于教育者而言,敞开师生交往意向性预示着教育者期待、迎接、悦纳学生的到来,表征为“爱生乐教”的生命态度。通过生态系统理论分析,在现实中,师生交往意向性的敞开遭遇时间之维与物质一心理空间之维的阙如之困。教育者是微系统的关键要素,为此,教育者亟需通过“反求诸己”、“知-行”的持续互动率先开启与稳定师生交往意向性,逐渐带出受教育者即时性和历时性的师生交往意向性,通过校园环境的“文”化与社会舆论的理性化表达,以保持师生整体性的交往意向性。 展开更多
关键词 交往意向性 教育者 受教育者 师生关系
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STABC-IR:An air target intention recognition method based on bidirectional gated recurrent unit and conditional random field with space-time attention mechanism 被引量:16
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作者 Siyuan WANG Gang WANG +3 位作者 Qiang FU Yafei SONG Jiayi LIU Sheng HE 《Chinese Journal of Aeronautics》 SCIE EI CAS CSCD 2023年第3期316-334,共19页
The battlefield environment is changing rapidly,and fast and accurate identification of the tactical intention of enemy targets is an important condition for gaining a decision-making advantage.The current Intention R... The battlefield environment is changing rapidly,and fast and accurate identification of the tactical intention of enemy targets is an important condition for gaining a decision-making advantage.The current Intention Recognition(IR)method for air targets has shortcomings in temporality,interpretability and back-and-forth dependency of intentions.To address these problems,this paper designs a novel air target intention recognition method named STABC-IR,which is based on Bidirectional Gated Recurrent Unit(Bi GRU)and Conditional Random Field(CRF)with Space-Time Attention mechanism(STA).First,the problem of intention recognition of air targets is described and analyzed in detail.Then,a temporal network based on Bi GRU is constructed to achieve the temporal requirement.Subsequently,STA is proposed to focus on the key parts of the features and timing information to meet certain interpretability requirements while strengthening the timing requirements.Finally,an intention transformation network based on CRF is proposed to solve the back-and-forth dependency and transformation problem by jointly modeling the tactical intention of the target at each moment.The experimental results show that the recognition accuracy of the jointly trained STABC-IR model can reach 95.7%,which is higher than other latest intention recognition methods.STABC-IR solves the problem of intention transformation for the first time and considers both temporality and interpretability,which is important for improving the tactical intention recognition capability and has reference value for the construction of command and control auxiliary decision-making system. 展开更多
关键词 Bidirectional gated recurrent network Conditional random field intention recognition intention transformation Situation cognition Space-time attention mechanism
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Air target intention recognition and causal effect analysis combining uncertainty information reasoning and potential outcome framework 被引量:7
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作者 Yu ZHANG Fanghui HUANG +2 位作者 Xinyang DENG Mingda LI Wen JIANG 《Chinese Journal of Aeronautics》 SCIE EI CAS CSCD 2024年第1期287-299,共13页
Recognizing target intent is crucial for making decisions on the battlefield.However,the imperfect and ambiguous character of battlefield situations challenges the validity and causation analysis of classical intent r... Recognizing target intent is crucial for making decisions on the battlefield.However,the imperfect and ambiguous character of battlefield situations challenges the validity and causation analysis of classical intent recognition techniques.Facing with the challenge,a target intention causal analysis paradigm is proposed by combining with an Intervention Retrieval(IR)model and a Hybrid Intention Recognition(HIR)model.The target data acquired by the sensors are modelled as Basic Probability Assignments(BPAs)based on evidence theory to create uncertain datasets.Then,the HIR model is utilized to recognize intent for a tested sample from uncertain datasets.Finally,the intervention operator under the evidence structure is utilized to perform attribute intervention on the tested sample.Data retrieval is performed in the sample database based on the IR model to generate the intention distribution of the pseudo-intervention samples to analyze the causal effects of individual sample attributes.The simulation results demonstrate that our framework successfully identifies the target intention under the evidence structure and goes further to analyze the causal impact of sample attributes on the target intention. 展开更多
关键词 Causal effect analysis Hybrid intention recognition Intervention retrieval Target intention Uncertainty reasoning
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