Abstract.The stamping and forming process of the flat-head cross stainless-steel bolt was formulated and finite element simulation analysis was carried out, and the forming pressure required for the forming of cold heading stainless steel fasteners was obtained. On the basis of the results of the finite element analysis, two-dimensional and three-dimensional CAD aided design tools were used the double-station cold heading dies for screw punches are carried out. According to the two-dimensional general structure diagram, the overall structure of the die base is designed and determined, the design … Read more →

Abstract.Mobile communication technology is one of the most rapidly developing technologies at present. Especially with the advent of 4G and 5G, mobile communication technology is playing an increasingly important role in people's life. Mobile communication curriculum is a professional course that students majoring in communication engineering must master. This curriculum involves a wide range of knowledge points, strong theoretical content, fast knowledge update and great difficulty in conducting experiments. In view of the characteristics of the curriculum and the problems encountered in teaching, … Read more →

Abstract.In order to study the behavior and characteristics of crowd evacuation in buildings, and then organize crowd evacuation reasonably and efficiently in emergency, a simulation model of crowd evacuation in buildings is proposed, which not only accords with reality, but also comprehensively considers many factors. Aiming at the shortcomings of the crowd evacuation simulation model in the existing building emergency evacuation, this model provides a multi-agent evacuation simulation method and system based on panic emotion, which aims to more truly simulate the crowd evacuation process in … Read more →

Abstract.Involves a bottle more balance of solid red wine box, the purpose is to solve the existing in the existing technology of the existing wine only play the role of the packing box, wine bottle in the course of carriage, will produce the shaking, so as to make the wine bottle is easy damaged, economic losses caused by the faults, and puts forward a kind of bottle multiple equilibrium solid red wine packaging. Read more →

Abstract.In this paper, a total of 178 samples were collected for sampling and analysis of the rock surface mosses on both sides of the Huajiang Grand Canyon in the Huajiang rocky desertification area, and the results showed that there were 9 families, 12 genera and 20 species in the Huajiang rocky desertification research area, and the largest number of genera was the grey moss and the cluster moss, and the dominant family was Entodontaceae Kindb. and pottiaceae Hampe, the dominant species is Erythrodontium julaceum (Schwägr.) Paris accounted for 28.57%. In comparison between the two banks of the … Read more →

Abstract.This system utilizes image recognition technology to study the problems of other people's check-in in the current check-in mode, poor data feedback, and low efficiency of manual management. A complete set of mobile conference sign-based based on image recognition technology is designed and implemented. The management system can greatly improve the efficiency of the conference check-in, save the time of the conference check-in, has strong usability and operability, and greatly saves the conference time occupied by the conference sign-on, and has high efficiency and practicability. Read more →