Aim:To gain knowledge of how adult students experienced the first year of a blended learning master programme to better understand their learning process.Methods:A qualitative,exploratory,descriptive study based on da...Aim:To gain knowledge of how adult students experienced the first year of a blended learning master programme to better understand their learning process.Methods:A qualitative,exploratory,descriptive study based on data from two focus group interviews with students attending a blended learning Master programme.Qualitative content analysis based on Graneheim and Lundman’s procedures was applied.Findings:Our analyses revealed one main theme:aspiring for competence in a multifaceted everyday life and four main categories:acquiring professional competence,struggling to manage diverse forms of communication,demanding task juggling and confused student role.Conclusions:The participants experienced that the programme enabled them to acquire professional competence relevant to practice.Despite the challenges,the programme is recommended for prospective students who live in both urban and rural areas,who are working and also responsible for children and other family tasks.展开更多
This paper presents the multi-step Q-learning(MQL)algorithm as an autonomic approach to thejoint radio resource management(JRRM)among heterogeneous radio access technologies(RATs)in theB3G environment.Through the'...This paper presents the multi-step Q-learning(MQL)algorithm as an autonomic approach to thejoint radio resource management(JRRM)among heterogeneous radio access technologies(RATs)in theB3G environment.Through the'trial-and-error'on-line learning process,the JRRM controller can con-verge to the optimized admission control policy.The JRRM controller learns to give the best allocation foreach session in terms of both the access RAT and the service bandwidth.Simulation results show that theproposed algorithm realizes the autonomy of JRRM and achieves well trade-off between the spectrum utilityand the blocking probability comparing to the load-balancing algorithm and the utility-maximizing algo-rithm.Besides,the proposed algorithm has better online performances and convergence speed than theone-step Q-learning(QL)algorithm.Therefore,the user statisfaction degree could be improved also.展开更多
In the colleges and universities, the relationship between the instructors and the students is very close. The counselors carry out the scientific and reasonable management on the life and learning of the students, an...In the colleges and universities, the relationship between the instructors and the students is very close. The counselors carry out the scientific and reasonable management on the life and learning of the students, and the students meet with the problems in their life and learning and exchange and communicate timely with the counselors, which is the process to realize the functions of the counselors. Then the management of the instructors built on the psychological contract is the more perfect, comprehensive, and scientific management mode. This kind of the management mode is not only very conducive to the development of the students, but also conducive to the interaction and communication between the counselors and the students. In a relaxed and harmonious atmosphere, the student＇s development will be more healthy and positive. This paper elaborates and analyzes several aspects in view of the management of the psychological contract of the university counselors.展开更多
Laser cleaning is a highly nonlinear physical process for solving poor single-modal(e.g., acoustic or vision)detection performance and low inter-information utilization. In this study, a multi-modal feature fusion net...Laser cleaning is a highly nonlinear physical process for solving poor single-modal(e.g., acoustic or vision)detection performance and low inter-information utilization. In this study, a multi-modal feature fusion network model was constructed based on a laser paint removal experiment. The alignment of heterogeneous data under different modals was solved by combining the piecewise aggregate approximation and gramian angular field. Moreover, the attention mechanism was introduced to optimize the dual-path network and dense connection network, enabling the sampling characteristics to be extracted and integrated. Consequently, the multi-modal discriminant detection of laser paint removal was realized. According to the experimental results, the verification accuracy of the constructed model on the experimental dataset was 99.17%, which is 5.77% higher than the optimal single-modal detection results of the laser paint removal. The feature extraction network was optimized by the attention mechanism, and the model accuracy was increased by 3.3%. Results verify the improved classification performance of the constructed multi-modal feature fusion model in detecting laser paint removal, the effective integration of acoustic data and visual image data, and the accurate detection of laser paint removal.展开更多
To get a better understanding of structural deactivation of ZSM-5/MOR during the catalytic cracking of n-heptane in the steam atmosphere, a comprehensive mechanism of hydrothermal dealumination was proposed through in...To get a better understanding of structural deactivation of ZSM-5/MOR during the catalytic cracking of n-heptane in the steam atmosphere, a comprehensive mechanism of hydrothermal dealumination was proposed through in-situ diffuse reflectance Fourier transform infrared spectroscopy(DRIFTS) in this work. The mechanism can be divided into two steps: firstly, the hydrolysis of four Al\\O bonds, and secondly, the self-healing of Si\\OH bonds accompanied with partial condensation of the extra-framework Al species. Accordingly, the kinetics of dealumination process has also been fully discussed. In the IR spectra, the range of 3450–3850 cm^(-1) could be deconvolved to distinguish the hydroxyl groups on the different position and calculate the consumption of each hydroxyl group during the reaction. Based on results from the in-situ DRIFTS, the kinetics of dealumination was hence developed and also in well agreement with the kinetics of deactivation of ZSM/MOR catalysts during the reaction in the presence of little coke deposits.展开更多
The teaching process includes ＂teaching＂ and ＂learning＂ of two aspects, and the teaching process of adult higher education is the autonomous learning process of students under the guidance of teachers. It respecti...The teaching process includes ＂teaching＂ and ＂learning＂ of two aspects, and the teaching process of adult higher education is the autonomous learning process of students under the guidance of teachers. It respectively establishes scientific and reasonable ＂teaching＂ quality monitoring system and ＂learning＂ quality monitoring system, to respectively conduct monitoring of the whole teaching process from＂teaching＂ and ＂learning＂ of the two aspects, in order to effectively improve the teaching quality of adult higher education.展开更多
While the research agenda of classroom interaction has long been well established internationally, scholars in China have paid little empirical attention to these developments until recently. Furthermore, among the bo...While the research agenda of classroom interaction has long been well established internationally, scholars in China have paid little empirical attention to these developments until recently. Furthermore, among the body of work on the local classroom discourse, very few studies have focused on the secondary sectors. From the perspective of the sociocultural theory （SCT）, this article examines the classroom discourse of Chinese middle school English language teaching （ELT） by investigating teacher-student interaction. The transcribed classroom discourse of 8 teachers＇ reading lessons is qualitatively coded and quantitatively measured. The study draws on a descriptive system focusing on the teacher-led three-part initiation-response-feedback （IRF） structure. The research findings reveal that quite similar discourse patterns are found in the lessons sampled, with the initiation-response-evaluation （IRE） sequence dominating the EFL （English as a Foreign Language） classroom interaction investigated. Theoretically, the paper aims to place the SCT perspectives in the foreground. Pedagogically, it attempts to raise teacher-practitioners＇ levels of awareness of the use of teacher talk in EFL classroom interaction.展开更多
基金supported in part by Inland Norway University of Applied Sciences,Faculty of Health and Social Sciences,NO-2418 Elverum,Norway.No external funding.
文摘Aim:To gain knowledge of how adult students experienced the first year of a blended learning master programme to better understand their learning process.Methods:A qualitative,exploratory,descriptive study based on data from two focus group interviews with students attending a blended learning Master programme.Qualitative content analysis based on Graneheim and Lundman’s procedures was applied.Findings:Our analyses revealed one main theme:aspiring for competence in a multifaceted everyday life and four main categories:acquiring professional competence,struggling to manage diverse forms of communication,demanding task juggling and confused student role.Conclusions:The participants experienced that the programme enabled them to acquire professional competence relevant to practice.Despite the challenges,the programme is recommended for prospective students who live in both urban and rural areas,who are working and also responsible for children and other family tasks.
基金the National Natural Science Foundation of China(No.60632030)the National High Technology Research and Development Program of China(No.2006AA01Z276)
文摘This paper presents the multi-step Q-learning(MQL)algorithm as an autonomic approach to thejoint radio resource management(JRRM)among heterogeneous radio access technologies(RATs)in theB3G environment.Through the'trial-and-error'on-line learning process,the JRRM controller can con-verge to the optimized admission control policy.The JRRM controller learns to give the best allocation foreach session in terms of both the access RAT and the service bandwidth.Simulation results show that theproposed algorithm realizes the autonomy of JRRM and achieves well trade-off between the spectrum utilityand the blocking probability comparing to the load-balancing algorithm and the utility-maximizing algo-rithm.Besides,the proposed algorithm has better online performances and convergence speed than theone-step Q-learning(QL)algorithm.Therefore,the user statisfaction degree could be improved also.
文摘In the colleges and universities, the relationship between the instructors and the students is very close. The counselors carry out the scientific and reasonable management on the life and learning of the students, and the students meet with the problems in their life and learning and exchange and communicate timely with the counselors, which is the process to realize the functions of the counselors. Then the management of the instructors built on the psychological contract is the more perfect, comprehensive, and scientific management mode. This kind of the management mode is not only very conducive to the development of the students, but also conducive to the interaction and communication between the counselors and the students. In a relaxed and harmonious atmosphere, the student＇s development will be more healthy and positive. This paper elaborates and analyzes several aspects in view of the management of the psychological contract of the university counselors.
基金Project(51875491) supported by the National Natural Science Foundation of ChinaProject(2021T3069) supported by the Fujian Science and Technology Plan STS Project,China。
文摘Laser cleaning is a highly nonlinear physical process for solving poor single-modal(e.g., acoustic or vision)detection performance and low inter-information utilization. In this study, a multi-modal feature fusion network model was constructed based on a laser paint removal experiment. The alignment of heterogeneous data under different modals was solved by combining the piecewise aggregate approximation and gramian angular field. Moreover, the attention mechanism was introduced to optimize the dual-path network and dense connection network, enabling the sampling characteristics to be extracted and integrated. Consequently, the multi-modal discriminant detection of laser paint removal was realized. According to the experimental results, the verification accuracy of the constructed model on the experimental dataset was 99.17%, which is 5.77% higher than the optimal single-modal detection results of the laser paint removal. The feature extraction network was optimized by the attention mechanism, and the model accuracy was increased by 3.3%. Results verify the improved classification performance of the constructed multi-modal feature fusion model in detecting laser paint removal, the effective integration of acoustic data and visual image data, and the accurate detection of laser paint removal.
基金Supported by the National Key Research and Development Program of China(2016YFA0202900)the National Natural Science Foundation of China(91434123,21622606)+1 种基金Zhejiang Provincial Natural Science Foundation of China(LR18B060001)the Fundamental Research Funds for the Central Universities
文摘To get a better understanding of structural deactivation of ZSM-5/MOR during the catalytic cracking of n-heptane in the steam atmosphere, a comprehensive mechanism of hydrothermal dealumination was proposed through in-situ diffuse reflectance Fourier transform infrared spectroscopy(DRIFTS) in this work. The mechanism can be divided into two steps: firstly, the hydrolysis of four Al\\O bonds, and secondly, the self-healing of Si\\OH bonds accompanied with partial condensation of the extra-framework Al species. Accordingly, the kinetics of dealumination process has also been fully discussed. In the IR spectra, the range of 3450–3850 cm^(-1) could be deconvolved to distinguish the hydroxyl groups on the different position and calculate the consumption of each hydroxyl group during the reaction. Based on results from the in-situ DRIFTS, the kinetics of dealumination was hence developed and also in well agreement with the kinetics of deactivation of ZSM/MOR catalysts during the reaction in the presence of little coke deposits.
文摘The teaching process includes ＂teaching＂ and ＂learning＂ of two aspects, and the teaching process of adult higher education is the autonomous learning process of students under the guidance of teachers. It respectively establishes scientific and reasonable ＂teaching＂ quality monitoring system and ＂learning＂ quality monitoring system, to respectively conduct monitoring of the whole teaching process from＂teaching＂ and ＂learning＂ of the two aspects, in order to effectively improve the teaching quality of adult higher education.
文摘While the research agenda of classroom interaction has long been well established internationally, scholars in China have paid little empirical attention to these developments until recently. Furthermore, among the body of work on the local classroom discourse, very few studies have focused on the secondary sectors. From the perspective of the sociocultural theory （SCT）, this article examines the classroom discourse of Chinese middle school English language teaching （ELT） by investigating teacher-student interaction. The transcribed classroom discourse of 8 teachers＇ reading lessons is qualitatively coded and quantitatively measured. The study draws on a descriptive system focusing on the teacher-led three-part initiation-response-feedback （IRF） structure. The research findings reveal that quite similar discourse patterns are found in the lessons sampled, with the initiation-response-evaluation （IRE） sequence dominating the EFL （English as a Foreign Language） classroom interaction investigated. Theoretically, the paper aims to place the SCT perspectives in the foreground. Pedagogically, it attempts to raise teacher-practitioners＇ levels of awareness of the use of teacher talk in EFL classroom interaction.
