Table of Content

15 December 2023, Volume 8 Issue 12

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Research on Solving Nonlinear Equations Based on Newton-Raphson

Guo Huayi

2023, 8(12):  1-4. 

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Newton-Raphson method， also known as Newton iteration method， is an approximate method for solving equations， applicable to both complex and real number domains. As one of the most important methods in numerical analysis， it is not only suitable for solving differential equations and integral equations， but also for solving nonlinear equations. This article analyzed the basic principles of the Newton-Raphson method and proved its practical application in solving nonlinear equations through case analysis. 

The Meromorphic Solutions of Fermat Type Functional Equations 

Duan Jiangmei, Han Yan, Hu Xiaofei, Yang Huijuan

2023, 8(12):  5-9. 

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Ｔhis paper investigated the existence of meromorphic solutions of four terms Fermat type functional equations， and proved that there were no non-constant meromorphic solutions of order less than 1 for the functional equation f 15（z）+f （s ）15（z）+h15（z） +w15（z）=1 . 

The Maximum Capacity Expansion of Spanning Tree Problem with Constraints

Yang Zilan, Yang Huijuan , Li Rui

2023, 8(12):  10-14. 

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The maximum capacity expansion of spanning tree problem with constraints （MCESTC） is NP-hard. A heuristic algorithm is designed to solve it by allowing an increase in the length value of the spanning tree through bilateral substitution strategy， and the correctness of the algorithm is proved. Finally， an example is used to illustrate the process of applying the algorithm to solve the problem， thereby verifying the effectiveness of the algorithm. 

Weighted Co-Location Pattern Mining Method Based on Specified Features 

Zhao Qinyi, Hei Shaomin

2023, 8(12):  15-21. 

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A co-location pattern is a subset of spatial feature set whose feature instances frequently appear in proximity in geographic space. Pattern mining is carried out based on the feature participation rate， which is defined as the radio of the number of unique instances in the pattern table to the total number of feature instances. A weighted co-location pattern mining method based on specified features is proposed to address the situation where the degree of concatenation of pattern feature instances based on specified features satisfies the pattern guidance requirements， but some features have too many total instances leading to a feature participation rate below the threshold， and the pattern is defined as a non-frequent pattern. The proposed method defines the weight of features and the calculation rules of weighted participation rate， which can effectively mine weighted co-location patterns based on specified features， and the weighted participation degree decreases monotonically with the increase of the pattern order. The experimental results indicate the effectiveness of the algorithm in terms of mining results and algorithm runtime. 

Adaptive Particle Swarm Optimization Algorithm with Strategy of Collision and Braking  

Li Xuan, Wu Xiaobing, Fang Tingting

2023, 8(12):  22-26. 

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Based on adaptive adjustment of the inertia weight in the particle swarm optimization algorithm，this paper addressed the issue of the algorithm easily falling into local optima and being difficult to escape， inspired by the principle of sardine being stimulated to accelerate swimming to avoid death， a collision strategy is used to simulate external stimuli and enhance its ability to the algorithm's ability to break free from local optima. In order to balance the ability of global exploration and local fine search， a nonlinear adaptive adjustment braking operator is introduced to adjust the velocity of particles accordingly. The improved particle swarm optimization algorithm is applied to multi-dimensional function optimization ， and the experimental results show that the adaptive particle swarm optimization algorithm with strategy of collision and braking has better algorithm efficiency and global optimization ability compared to the standard particle swarm optimization algorithm. 

Research on Human Abnormal Emotion Recognition Algorithm Based on Video Images

Chen Bin

2023, 8(12):  27-31. 

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 Traditional human abnormal emotion recognition algorithms have a high error rate in recognition due to the influence of noise. To solve this problem， a human abnormal emotion recognition algorithm based on video images is studied. Firstly， the facial expressions and body movement features were detected to obtain feature vectors through image preprocessing， and the target image classification features were obtained by scanning pixels. Deep learning was used to extract facial features， and a MLP hierarchical architecture was applied with corresponding learning rates and iteration times to obtain a two-dimensional training dataset of images.Then， the feature maps were sent to the network connection layer for dimensionality reduction， and the classification layer of the model was set. Finally， feature transfer and effective recognition were achieved by connecting the feature maps of different layers through DNET. The experimental results showed that the recognition error rate of the proposed method was low，and the recognition effect of the test set after adding noise processing was significant， which could efficiently and accurately recognize human abnormal emotions. 

Design and Practice of Architectural Space Reconstruction Teaching Based on Open Experiments 

Yang Rongbin, Xie Zaixin, Duan Zhuoqi, Zheng Xiaohong, Hu Yongmao, Li Xiaoqi

2023, 8(12):  32-37. 

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Open experimental teaching is one of the important means to cultivate innovative talents and improve students' quality. It provides an opportunity for the reform of experimental teaching. The composition of architectural space is an essential skill for students majoring in architecture， and open experiments provide a good platform for the reform of architectural space reconstruction teaching. Firstly， this article designed two teaching modules： manual model and computer model， with three training sessions for each module. Secondly， practical teaching was carried out based on two teaching modules， combining different themes to train students' ability to reconstruct and innovate architectural space. Finally， the experimental teaching effect was analyzed， and it was found that the architectural space reconstruction teaching based on open experiments enhanced students' abilities in self-learning and innovation， and improved the teaching effect.

Exploration of Curriculum Reform of "Power Electronics" under the Background of New Engineering

Jiang Jianbo, Yang Nianting

2023, 8(12):  38-43. 

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Power electronics is an electronic technology that controls and converts electrical energy. It is a key technology for integrating diverse forms of electrical energy， as well as an important technology to promote the national "dual carbon" goal. Therefore， many universities have listed "Power Electronics" as a core course for majors such as electrical engineering and automation， energy storage science and engineering. In view of the problems of insufficient class hours， single teaching methods， and outdated content in the "Power Electronics" course， based on the new engineering concept， curriculum reform is carried out by fully integrating the ideological and political education into the curriculum ， enriching teaching methods ， complementing scientific research and teaching， improving the course content system， and so on. Through the reform， it is expected to enhance students' sense of historical responsibility， improve learning efficiency， and broaden their horizons. After two years of exploration， students' final examination scores have been improved， and the reform has received wide praise from students. 

Diversity of the Banding Birds in Nanjian Fenghuang Mountain from 1999 to 2022 

Cui Maohuan, Yang Xun, Shi Guocai

2023, 8(12):  44-49. 

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Based on the data from the Fenghuang Mountain Bird Banding Station from 1999 to 2022， the diversity of banding birds was comprehensively analyzed. The results showed that a total of 282 bird species with 64 558 individuals were recorded over 24 years， belonging to 13 orders and 50 families. Passerine birds accounted for 72.70% of the total species and 52.55% of the total count， while Muscicapidae birds accounted for 19.50% and 23.29% respectively. The dominant species were Ardeola bacchus， Lanius cristatus， Ficedula parva and Ｃalliope calliope. The majority of birds were resident species （136 species， accounting for 48.23%）， followed by Oriental species among breeding birds （124 species， accounting for 43.97%）.Among the recorded species， 28 were under national key protection， 8 were listed in the Convention on International Trade in Endangered Species of Wild Fauna and Flora， and 26 were listed in the Red List of Chinese Vertebrates. One new bird species was recorded in China and four species were recorded in Yunnan Province. The bird diversity index was 4.061 8， the uniformity index was 0.719 9， and the dominance index was 0.031 2. The bird diversity at Fenghuang Mountain was higher than that at neighboring bird migration sites such as Xiongguan and JinshanYakou. It is recommended to continue the bird census work during the spring season and strengthen the research on bird migration patterns and monitoring of avian influenza in migratory waterbirds. 

Analysis and Comparison of Biological Indices and Muscle Nutritional Value of Two Artificial Farming Schizothorax Fish Species 

Zhong Chuanyan, Jiang Yujie, Chen Li, Su Zifeng, Long Xiaowen

2023, 8(12):  50-57. 

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To understand the biological indices and muscle nutritional value of the artificial farming Schizothorax lissolabiatus and S. griseus， 5 individuals of 2-year-old S. lissolabiatus and S. griseus with similar body weights were collected under the same breeding environment. The biological indices and muscle nutritional quality were analyzed and compared by using conventional biochemical analysis methods. Results：（1） There were no significant differences in the biological indices between two Schizothorax fish species（P>0.05）. （2） The protein content in the muscles of the S. lissolabiatus and the S. griseus were 19.36% and 19.09%， respectively. （3） The highly unsaturated fatty acid content in the muscles of both Schizothorax fish species was highest in docosahexaenoic acid. The content of polyunsaturated fatty acids and the ratio of polyunsaturated fatty acids to saturated fatty acids in the muscles of S. lissolabiatus were significantly higher than those in S. griseus， with statistical significance（P<0.05）. （4） The content of alanine in the muscles of S. lissolabiatus was significantly higher than that in S. giseus， with statistical significance（P<0.05）. The essential amino acid score and its average value in the muscles of S. lissolabiatus were higher than those in S. giseus. In conclusion， the muscle nutritional value of 2-year-old artificial farming S. lissolabiatusis better than that of S. giseus. 

Research on the Gap Between Urban and Rural Campus Football and Its Development Based on Symbiosis Theory

Wu Chaowei

2023, 8(12):  58-65. 

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 In order to promote the high-quality development of campus football，this paper examines the practical gaps between urban and rural campus football in eight aspects： students' cognition， teaching staff， facilities and equipment， funding guarantee， teaching， training， competition， and cultural atmosphere construction by using the methods of literature review， questionnaire survey，comparative analysis and other research methods. It also analyzes the differences from the perspective of biological "symbiosis theory". The study finds that the symbiotic level of urban and rural campus football is weak， with low correlation between symbiotic units. The symbiotic interface is single and blocked，and the symbiotic environment needs to be optimized. The symbiotic benefits are low， and there is a lack of sustainable symbiotic models. Strategies to promote the symbiotic development of urban and rural campus football are proposed， including narrowing the gap in concepts and improving the correlation between symbiotic units， promoting interactive communication and constructing diversified symbiotic interfaces， strengthening all aspects of security， and creating a positive symbiotic environment， and following the laws of symbiosis to build a mutually beneficial symbiotic development model.

Research on the Application of the Integrated Teaching Mode of "Teaching， Training and Competition" in the Teaching of Taijiquan in Universities

Duan Yimei, Lu Guotian, Zhang Xiaolin, Yu Xuelian

2023, 8(12):  66-71. 

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To explore the application effect of the integrated teaching mode of "teaching， training and competition" in Taijiquan teaching in universities. Class 1 and Class 2 in a university's Taijiquan optional class were randomly selected and divided into an experimental group and a control group. The experimental group used the integrated teaching mode of "teaching， training and competition"， while the control group used the traditional mode. The differences in the overall technical evaluation scores， secondary evaluation criteria for Taijiquan movement， the grade distribution， and satisfaction levels of the two groups were analyzed. The results showed that the overall technical evaluation scores of the experimental group were higher than those of the control group （P<0.05）. The experimental group scored significantly higher than the control group in the secondary evaluation criteria for the overall performance of Taijiquan， coordination of force and footwork， and specific movement requirements （P<0.05）. The distribution of excellent and good grades in the experimental group was higher than that in the control group （P<0.05）. The satisfaction level with the teaching mode in the control group was significantly lower than that in the experimental group （P<0.01）. The integrated teaching mode of "teaching， training and competition" improved the effectiveness of Taijiquan teaching， students' learning efficiency， and satisfaction of students.

The Impact Mechanism of Rural Residents'  Expectations for Leisure Public Services in the Construction of Demonstration Zone for Common Prosperity

Zhang Anmin

2023, 8(12):  72-78. 

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Identifying residents' expectations for public services is a prerequisite for improving the basic public service system and improving the level of public services. Based on the theory of planned behavior，this study empirically analyzed the impact mechanism of rural residents' expectations for leisure public services in the demonstration zone for common prosperity through a survey of 3 325 rural residents in Zhejiang Province， using structural equation modeling. The study found that leisure attitude has both "rationality" and "practicality"， and subjective norms present a "differential pattern"， both of which can significantly improve rural residents' willingness to engage in leisure activities， with leisure attitude having a greater influence than subjective norms. There is an "asynchronous resonance" between rural residents' willingness to engage in leisure activities and their expectations for leisure public services in the demonstration zone for common prosperity.

Research on the Introduction Strategy of Independent Websites of Cross-Border E-Commerce Enterprises Considering Brand Promotion

Wu Jinghong, Liu Cun

2023, 8(12):  79-87. 

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 The increasing number of platform sellers has led to intensified competition， highlighting the advantages of the independent website model in cross-border e-commerce. This paper constructs an online sales system composed of a cross-border e-commerce enterprise and a cross-border e-commerce platform. It discusses the decision-making process for introducing the independent website channel， pricing decisions for different channels， and the impact of platform commission rates on the decision to introduce the independent website channel. The following main conclusions are drawn： The decision of whether to introduce the independent website channel for cross-border e-commerce enterprises mainly considers the preference for the independent website channel and channel sales costs. The platform commission rate affects the choice of operating model for the independent website channel. When the platform commission rate is in a lower range， the drainage model should be adopted， otherwise， the brand model should be adopted. Compared with pure platform channels， expanding independent website channels is considered an advantageous strategy. Platform providers should encourage the introduction of the independent website channel by reducing the platform commission rate， while also supporting brand promotion activities rather than just website drainage， which can achieve system Pareto improvement.

Analysis of Stylistic Features of Tang Dynasty Poetry in Different Periods Based on NLP and Statistical Methods

Ma Ming, Shen Fanqi, Zhang Chaoyuan

2023, 8(12):  88-96. 

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Tang dynasty poetry is a cultural treasure of China， with a large number of works， diverse styles and themes. In order to discuss the characteristics of Tang dynasty poetry in different periods， this paper used natural language processing （NLP） and statistical methods such as K-means++ clustering analysis， repeated measures ANOVA， and paired sample t-test to analyze the stylistic characteristics and differences of poetry in the Early Tang， Golden Age of Tang， Middle Tang， and Late Tang periods.The results showed that there were significant differences in the poetic styles between the Early Tang and Golden Age of Tang periods， while the differences between the Middle Tang and Late Tang periods were relatively small.

Study of Preservative Technology of Fresh Cut Flowers of Luculia pinceana

Li Hongying, Li Shifeng, Li Yunfei, Kong Lingfang,

2023, 8(12):  96-100. 

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 Objective： To explore the preservation effect of different pretreatments on fresh cut flowers of L. pinceana， and provide a basis for their sales and transportation.  Methods： Fresh cut flowers of L. pinceana were used as experimental materials，and low temperature and ethanol solution were used as two pretreatment factors. Four levels were set for each factor. The materials without pretreatment were used as control. After pretreatment， the flowers were placed in a preservative solution containing 1% sucrose and 100 mg/L 8-hydroxyquinoline for vase experiments. The morphological indexes such as fresh weight change rate，moisture balance value， flowering rate， decay rate， vase life and physiological indexes such as MDA content and relative conductivity were measured under different pretreatments to explore the effects of different pretreatments on the preservation of cut flowers. Results： The vase life of cut flowers precooled for 24 h was the longest， up to 20.67 days. The flowering rate，the fresh weight change rate， and moisture balance value maintain positive values were higher than those in the control group， indicating better vase performance. Conclusion： Pre-cooling for 24 h can effectively improve the flowering rate of L. pinceana. cut flowers and prolong their vase life.