Based on the structure of the active arm type torsion suspension, this paper proposes an optimal control algorithm for the damping force of the vane damper which integrates the road surface information. Firstly, the structural characteristics and working principle of the active arm-type torsional suspension and vane damper are introduced. Then, the mathematical model of the damper and suspension system is proposed, and the dynamic characteristics of the arm suspension system are analyzed. Finally, based on the fuzzy PID control algorithm, a system simulation model based on road surface information is built. The simulation results show that the control strategy of the vane damper can improve the ride comfort of the suspension.

This paper comprehensively uses the fuzzy cognitive graph method and entropy weight method to dynamically assess the credit risk of Internet financial service platforms. First, a platform credit risk indicator system was constructed. Secondly, the genetic algorithm is used to learn the fuzzy cognitive graph weight matrix. Then, the fuzzy cognitive graph inference mechanism is used to predict the dynamic changes of the credit risk index and the stable state finally achieved. Finally, combined with the index weights calculated by the entropy weight method, the credit risks of the three online lending platforms are dynamically assessed. This paper realizes the dynamic assessment and prediction of Internet financial service platforms, and provides theoretical support for the credit risk of government supervision platforms.

Red soil is widely distributed in China, with strong acidity and low nutrient content. It needs to be fertilized and improved when planting crops. The effects of Fertilization on the parent material, phosphorus and sulfur elements in red soil were discussed. Six groups of control experiments were set up, in which different fertilizer combinations were used as the base fertilizer of red soil. The organic matter, phosphorus, pH value and crop growth in red soil were observed by planting wheat and corn. The results showed that the mixed application of chemical fertilizer and organic fertilizer could maintain the fertility of red soil and acid and alkali. The control effect of degree is the best. Therefore, in the process of red soil improvement, we should pay attention to the application of organic fertilizer.

From the perspective of residents, 20 indicators are selected to explore the influencing factors of residents' income satisfaction, and three public factors are selected by factor analysis method to evaluate the influencing factors of income satisfaction. The results show that the level of income has the strongest impact on residents' income satisfaction, and put forward the corresponding solutions.

Aiming at the problem that the traditional reliability method with small failure samples cannot accurately calculate the reliability, this paper makes full use of existing information and expert information, etc. Based on the combination of prior information and constrained no prior information, the improved Bayesian method is used to establish reliability. Sexual analysis model. First, a weighted fusion method is used to establish a joint prior distribution that combines prior information with constrained and no prior information according to the credibility of the prior information to the posterior information. At the same time, the robustness of the joint prior distribution is analyzed; The prior distribution is combined with the posterior information to calculate the posterior distribution form of the distribution parameter, and the distribution parameter value and the mean time between failures are calculated.

It is of great significance for the promotion and popularization of tourism ecommerce to study the factors influencing the adoption of mobile hotel reservation. From the perspective of user experience, taking TTF and UTAUT as the theoretical framework, four external variables including situational awareness, user experience, perceived risk and perceived cost are added to build a mobile hotel reservation adoption model. Based on the fact that senior college students have more travel needs, this paper takes college students as an example to make an empirical analysis. The results show that: task technology matching, situational awareness, effort expectation and performance expectation have a significant impact on user experience, and then affect user behavior intention; social impact, perceived risk and perceived cost also have a significant impact on user behavior intention, among which social impact has the strongest impact on college students' mobile hotel reservation intention. Combined with the analysis of empirical results, some suggestions are put forward for the development and operation promotion of mobile hotel reservation application.

Cyberspace as the fifth dimension of combat, it has occupied a pivotal position in information operations. In this paper, the concept, composition and characteristics of the cyberspace operations are expounded in general, and the threats of cyber warfare are discussed. Finally, the enlightenment brought by cyberspace warfare is summarized.

At present, the entrepreneurship of Chinese college students is characterized by high participation rate and low success rate. This study examines the impact of gender role androgyny on college students 'ability to cope with entrepreneurial frustration through questionnaire surveys and literature analysis from two perspectives: college students' ability to actively respond to entrepreneurial failure and learn from entrepreneurial failure. Through the analysis of 514 sample surveys of college students in Guangdong Province, we find that college students with androgyny personality have stronger ability to cope with entrepreneurial frustration, which means that the androgyny personality has a positive impact on entrepreneurship. In this regard, we put forward some suggestions to strengthen the cultivation of androgyny personality to promote the entrepreneurial development of college students.

This paper focused on the relationship between the orientation of an apartment and its property value. Firstly, we used Hedonic model to decompose the characteristic prices of an apartment, and adopted FGLS to estimate the regression parameters to avoid the adverse consequences caused by heteroscedasticity phenomenon. The empirical result shows that the orientation is not the key factor in the demander’s purchase process. Secondly, in the same community, we selected samples facing south and non-south as a test group and a control group. Through paired regression analysis, we find that in Chongqing’s second-hand housing market, compared to the apartment having no south-facing orientation, those with it on average are valued only 1.42% .It is suggested that the evaluation practice should pay more attention to the orientation characteristics and measure orientation value according to local conditions.

This paper presents a modified particle swarm optimization, named as punctuated-equilibrium particle swarm optimization (PEPSO). This method refers to punctuated-equilibrium Model (PEM) which is a pattern of group development in organizational behavior. PEM uses the long-term equilibrium phase and the short-term abrupt phase to solve the problem of group stagnation. The present work mathematically modelled this alternating process. The efficiency of the proposed PEPSO was evaluated using CEC 2014 benchmark functions. The experiments showed that PEPSO could solve premature convergence and had more good convergence accuracy than PSO on some test functions. Furthermore, it was also confirmed that the swarm was divided into different groups and the individuals of every group almost acted in unison. This provides a good explanation between PSO and organizational behavior from a new experimental perspective.