Research on the Path of Training Athletes in Chinese Universities Under the Background of Integration of Sports and Education

The purpose of this study was to realize the cognition and practice of sports education concepts from all walks of life in China, and eliminate the barriers of traditional systems and mechanisms, it will point out the direction for the training of Chinese competitive sports reserve talents to get out of the predicament and move towards high-quality development. The cultivation of reserve talents for competitive sports in China has gone through three stages: “combination of sports and education,” “combination of education and sports,” and “integration of sports and education.” Through analysis, it is concluded that the problems encountered by high-level sports teams in Chinese colleges and universities in the process of talent training. First, the sports department mainly cultivated reserve talents in the past, and the evaluation of athletes paid more attention to medals and honors. However, the main focus of the work of the education department is to enhance the physical fitness of the students and promote the physical and mental health of the students. Secondly, the lack of investment in training by universities leads to low coaching level and ability of coaches, which is the main factor restricting the training of athletes. Finally, in actual campus life, athletes spend most of their time in daily competitions and training, and their cultural performance is not good, which leads to their inability to truly master the cultural knowledge of their chosen major during their studies, it is challenging to choose a career as an elite in related industries after graduation. First, the main body of implementing the training of competitive sports talents in the new era in the sports department and the education department. Therefore, it is necessary to strengthen the coordination, communication and cooperation between the two departments to realize the sharing and sharing of resources between them. Secondly, universities should provide athletes with diversified teaching projects and practice forms. The teachers’ team is divided into two categories: physical education teachers and physical education coaches. Teachers are responsible for daily classroom teaching work to achieve the goal of coordinated development of physical exercise and cultural learning. The coach is responsible for sports training, through scientific and systematic training to enable students to reach a specific level of competition. Finally, universities should adopt learning planning guidance for athletes to help them complete their learning tasks, improve their cultural literacy, and enable them to master sports skills without delaying their normal study life

Scientists' bounded mobility on the epistemic landscape

Despite persistent efforts in revealing the temporal patterns in scientific careers, little attention has been paid to the spatial patterns of scientific activities in the knowledge space. Here, drawing on millions of papers in six disciplines, we consider scientists' publication sequence as "walks" on the quantifiable epistemic landscape constructed from large-scale bibliometric corpora by combining embedding and manifold learning algorithms, aiming to reveal the individual research topic dynamics and association between research radius with academic performance, along their careers. Intuitively, the visualization shows the localized and bounded nature of mobile trajectories. We further find that the distributions of scientists' transition radius and transition pace are both left-skewed compared with the results of controlled experiments. Then, we observe the mixed exploration and exploitation pattern and the corresponding strategic trade-off in the research transition, where scientists both deepen their previous research with frequency bias and explore new research with knowledge proximity bias. We further develop a bounded exploration-exploitation (BEE) model to reproduce the observed patterns. Moreover, the association between scientists' research radius and academic performance shows that extensive exploration will not lead to a sustained increase in academic output but a decrease in impact. In addition, we also note that disruptive findings are more derived from an extensive transition, whereas there is a saturation in this association. Our study contributes to the comprehension of the mobility patterns of scientists in the knowledge space, thereby providing significant implications for the development of scientific policy-making.Comment: article paper, 47 pages, 29 figures, 4 table

Can Educational Robots Improve Student Creativity: A Meta-analysis based on 48 Experimental and Quasi-experimental Studies

Cultivating innovative talents has become a critical strategy for building China into a strong country in science and technology. Catering to the trend of educational reform in the intelligent era, the use of robotics in developing student creativity proves to be of greater practical value. The findings of this study are that: first, the overall effect of educational robotics on student creativity reaches above-moderate level; second, educational robotics has more significant effects on creativity of primary and junior secondary students; third, in terms of subjects, robotics courses can most effectively promote student creativity; fourth, among various teaching topics, prototype creation has the most substantial impact on student creativity; fifth, in terms of instruction methods, inquiry-driven teaching can best stimulate student creativity; sixth, compared with ordinary classrooms, the laboratory environment is more favorable for the development of student creativity. The paper also offers recommendations for popularizing robotics curriculum at different education levels

Rate distortion control in digital video coding

Lossy compression is widely applied for coding visual information in applications such as entertainment in order to achieve a high compression ratio. In this case, the video quality worsens as the compression ratio increases. Rate control tries to use the bit budget properly so the visual distortion is minimized. Rate control for H.264, the state-of-the-art hybrid video coder, is investigated. Based on the Rate-Distortion (R-D) slope analysis, an operational rate distortion optimization scheme for H.264 using Lagrangian multiplier method is proposed. The scheme tries to find the best path of quantization parameter (OP) options at each macroblock. The proposed scheme provides a smoother rate control that is able to cover a wider range of bit rates and for many sequences it outperforms the H.264 (JM92 version) rate control scheme in the sense of PSNR. The Bath University Matching Pursuit (BUMP) project develops a new matching pursuit (MP) technique as an alternative to transform video coders. By combining MP with precision limited quantization (PLO) and multi-pass embedded residual group encoder (MERGE), a very efficient coder is built that is able to produce an embedded bit stream, which is highly desirable for rate control. The problem of optimal bit allocation with a BUMP based video coder is investigated. An ad hoc scheme of simply limiting the maximum atom number shows an obvious performance improvement, which indicates a potential of efficiency improvement. An in depth study on the bit Rate-Atom character has been carried out and a rate estimation model has been proposed. The model gives a theoretical description of how the oit number changes. An adaptive rate estimation algorithm has been proposed. Experiments show that the algorithm provides extremely high estimation accuracy. The proposed R-D source model is then applied to bit allocation in the BUMP based video coder. An R-D slope unifying scheme was applied to optimize the performance of the coder'. It adopts the R-D model and fits well within the BUMP coder. The optimization can be performed in a straightforward way. Experiments show that the proposed method greatly improved performance of BUMP video coder, and outperforms H.264 in low and medium bit rates by up to 2 dB.EThOS - Electronic Theses Online ServiceGBUnited Kingdo

Energy-Dissipation Performance of Combined Low Yield Point Steel Plate Damper Based on Topology Optimization and Its Application in Structural Control

In view of the disadvantages such as higher yield stress and inadequate adjustability, a combined low yield point steel plate damper involving low yield point steel plates and common steel plates is proposed. Three types of combined plate dampers with new hollow shapes are proposed, and the specific forms include interior hollow, boundary hollow, and ellipse hollow. The “maximum stiffness” and “full stress state” are used as the optimization objectives, and the topology optimization of different hollow forms by alternating optimization method is to obtain the optimal shape. Various combined steel plate dampers are calculated by finite element simulation, the results indicate that the initial stiffness of the boundary optimized damper and interior optimized damper is lager, the hysteresis curves are full, and there is no stress concentration. These two types of optimization models made in different materials rations are studied by numerical simulation, and the adjustability of yield stress of these combined dampers is verified. The nonlinear dynamic responses, seismic capacity, and damping effect of steel frame structures with different combined dampers are analyzed. The results show that the boundary optimized damper has better energy-dissipation capacity and is suitable for engineering application

The Training Theory of Chinese University Sports Teams Based on the Complexity Paradigm

Under the background of the integration of sports and education, it is of great significance to deepening the training theory of college sports teams. This research puts forward the necessity of using the complexity paradigm to find a more suitable training theory for college sports teams. The training theory of our country is deeply influenced by the simplicity paradigm. The simplicity paradigm is based on reductionism, which believes that the research object comprises simple addition of single elements, showing a linear relationship. There are many general pieces of training in the training arrangement, the preparation period is too long, the special training is not deepened, and the actual training effect is poor. Lack of a composite coaching team, in addition to training and competition tasks, but also team building and management, too exhausted, no time to delve into training theory. When using traditional sports staging theory to make training arrangements, the student-athletes’ particularity should be taken into consideration. University sports teams are affected by the economy and school development, and the strengths of various sports teams are uneven. Universities with superior resources are in a leading position in major competitions, resulting in a significant gap in competition. The development of training theory should be based on the particularity of student-athlete status. The integration and in-depth development will improve the overall level of competition and enhance the driving force of innovative sports team training theory innovation