An Introduction to the Chinese National Community systematically expounds General Secretary Xi Jinping's important thoughts on ethnic work, and is the founding work of "Chinese National Community Studies". The book analyzes in depth the theories, historical concepts and practical values of building the Chinese national community, answers the relevant basic concepts, clarifies the theoretical origins, and provides theoretical support for forging a strong sense of Chinese national community in the new era. Guided by a correct historical view of the Chinese nation, the book clearly explains the formation and development of the Chinese national community and shows the development pattern of pluralism and unity. An Introduction to the Chinese National Community summarizes the practical concepts of ethnic work in the new era, providing a guide to action for promoting national unity

The course of ideological and political theory is a key course in implementing the fundamental task of establishing morality and nurturing talents. Propose and discuss the integration of the awareness of building a strong community of the Chinese nation into ideological and political education in universities. Firstly, clarify the connotation and significance of building a strong community of the Chinese nation. Secondly, grasp the main content and focus of integrating into the teaching field. Thirdly, explore the ways and paths of integration. Educate and guide young students to base themselves on basic national conditions and strengthen their historical confidence, Deeply comprehend the magnificent power contained in the Chinese people and the bright prospect of achieving national rejuvenation, firmly believe in new unity and struggle to create new historical achievements, and continuously enhance the "Five Identities".

Ningxia goji berries have always enjoyed high reputation in the Chinese goji berry industry and are the main producing areas. Ningxia goji berries are not only supplied to the domestic market, but also an important export commodity. To improve the export competitiveness of Ningxia goji berries, it is necessary to study the production and export situation. Compare and analyze a series of indicators to evaluate the export competitiveness level of Ningxia goji berries. Taking measures to improve the export competitiveness of Ningxia goji berries in response to some restrictive factors affecting their export.

Based on the panel data of 27 cities in the Yangtze River Delta from 2011 to 2021, this paper applied location entropy and super-efficiency SBM model to estimate the level of financial agglomeration and urban green development of each city in the Yangtze River Delta, constructs a coupling coordination degree model of the two systems, and analyzes the spatial-temporal coupling characteristics between the two systems.The research findings show that the financial agglomeration level has been increasing over time, with the gap gradually narrowing. The spatial distribution of urban green development levels is uneven, and the gap between cities becomes increasingly prominent with the passage of time.The two systems exhibit high coupling and low coordination forming Shanghai, Nanjing, Hangzhou and Hefei as high-value centers, spreading from high to low to all around, and spreading from high to low to the surroundings.The difference in coordination value shows a "U"-shaped trend, first decreasing and then increasing, and the differences between cities have become more apparent.Therefore, it is necessary to strengthen the information exchange between the central city of the Yangtze River Delta and the surrounding cities, give full play to the spatial spillover effect of the central city to drive the development of the surrounding areas, and thereby promote the coordinated development of the two systems of the Yangtze River Delta urban agglomeration.

Aviation service art and management is a newly added undergraduate major of the Ministry of Education in 2019 which is still in the initial exploration stage. However, the major construction level is related to the quality of talent training and whether it can provide talent support for the high-quality development of China's civil aviation industry. Based on comparative analysis, this paper takes 38 colleges and universities with aviation management major as research objects, reviews the development process of aviation service art and management from two stages, and points out that the lack of national teaching quality standards leads to problems in training objectives, curriculum system and teacher team construction of aviation management. In view of this, this paper puts forward the following suggestions: （1） Appeal to the Ministry of Education to issue the national standards of undergraduate teaching quality suitable for aviation management as soon as possible; （2） According to the adjustment principle of ‘increasing and decreasing’, we should adjust the basic courses of subjects, and continuously strengthen the construction of innovation, advanced and challenging degree of courses; （3） Advocate that school teachers, enterprise teachers, teachers with high academic qualifications and excellent management talents in the industry build a teacher team together; （4） Point out that school-enterprise cooperation can advance to deeper cooperation from three aspects: teaching team building, practice base building and establishment of aviation management committee.

The Mongolian epic Jangar has a grand geospatial structure. The geographical narrative is not only a typical feature of Jangar, but also an important component of the oral formula of Jangar. By using Geocriticism that has emerged in recent years to explore the narrative logic of Jangar, and analyze places, spatial structure and literary drawings in the epic, it can not only show the real-life basis of the epic Jangar, but also discover the worldview and cosmology of the Mongols contained in the epic, to show the cultural connotation of the epic Jangar.

The construction of child-friendly cities in China is receiving increasing attention. This paper examines Dalian's strengths in its effors to become a child-friendly city, including its robust economic base, friendly social environment, and strong policy support. Meanwhile, this research identifies several areas for improvement, such as the deficiencies in public services, infrastructure, and children’s active participation in development. To address these issues, the paper suggests adopting a child-first approach, enhancing child-friendly public services, improving the inclusivity and welfare systems for children, and upgrading the quality of urban space. Hopefully, implementing these strategies will boost Dalian’s development as a child-friendly city.

This paper investigates the phenomenon of Unethical Pro-organizational Behavior (UPB), where employees engage in unethical acts to benefit their organization. It aims to understand theoretical mechanism driving such behavior and its consequences in the digital context. This paper reviews existing main research on unethical pro-organizational behavior, explores its concept and characteristics, and identifies four key mechanisms influencing its occurrence: social exchange, social identity, social cognition, and social learning. Building upon this foundation, a research model based on contingency theory is proposed to examine the individual and organizational consequences of unethical pro-organizational behavior. The study sheds light on the factors that contribute to employees engaging in unethical behavior for organizational gain. It proposes a model that explores the consequences of unethical pro-organizational behavior. By identifying its antecedents and consequences, the study provides valuable insights for organizations to manage and prevent such behavior, ultimately promoting ethical and responsible conduct within the workforce.

Accelerating the common prosperity of the upper reaches of the Yellow River is the top priority of the national strategy. Empowering farmers and herdsmen with skills is an important way to promote the revitalization of rural talents and agricultural and rural modernization. It is of great significance to study the influencing factors of farmer's and herdsmens training and sharpen their skills for farmers to increase their income and get rich. In this study, 743 questionnaires and interview materials were obtained through the skills training of farmers and herdsmens in 18 counties in the upper reaches of the Yellow River. By using principal component analysis, it was found that factors such as age, experience in skills training, family size, marital status, and arable land per capita have a greater influence on farmers' willingness to receive skills training than other elements. Among them, the training includes there is a positive correlation between family support, whether the technical training you have learned now meets the needs, whether there will be opportunities to make money after training, and whether the training content will be applied in the future. This paper puts forward the countermeasures of carrying out skills training extensively, making skills training plans according to the needs, consolidating the results of skills training, and establishing long-term training mechanisms.

During the Ming and Qing dynasties, with the influx of a large number of Han people migrated to Hainan, the relationship between the Han and Li ethnic groups became closer, and economic and cultural exchanges increased significantly. The active commercial trade between Han and Li, deepening cultural connections. This period not only the sinicization of the Li people but also the assimilation of Han into Li culture, with numerous records of intermarriage between the two groups. The economic and cultural interactions between Han and Li in Hainan during the Ming and Qing dynasties facilitated the integration of these ethnic groups, and promoted the economic and cultural development of the Hainan region and the social progress of the Li ethnic group in Hainan.

This study firstly analyzes the macro background of the literature review. Secondly, this study analyzes the development status of economic cooperation between Dalian and major economies in Northeast Asia from two aspects of foreign trade and attracting and foreign investment. Thirdly, the empirical analysis of the economic and trade cooperation between Dalian and Northeast Asian countries is conducted by gravitational model. the results show that the value of import and export between Dalian and Northeast Asia countries are positively correlated with the GDP of Dalian city and Northeast Asia countries , but negatively correlated with the distance between Dalian and Northeast Asia countries; Dalian attracting FDI has a significant positive effect on the export of Dalian to Northeast Asia countries; if the Northeast Asian country is also a RCEP member, it will have a significant promoting effect on Dalian’s imports from that country. Finally, the corresponding countermeasures and suggestions were proposed.

By analyzing the characters and plot of Saul Bellow’s novella “Cousins”, this paper elucidates Bellow’s communal ethics—how individuals seek and construct their identity and sense of belonging within a community, the pivotal role of culture and wisdom traditions in shaping community identity, and the necessity for members within a community to share responsibilities and care for each other. It argues that Bellow’s depiction of community transcends mere familial or geographical ties, embodying a deep integration based on shared culture, history, and values. It highlights the significance of Bellow’s communal ethics in preserving cultural continuity, deepening the connection between individuals and the community, and advancing the common welfare of humanity.

Studying classic Marxist works helps college students understand and grasp Marxism as a whole, helps to clarify doubts and puzzles from the theoretical source, and helps to clarify the development logic of socialism with Chinese characteristics in the new era, which is an important measure to improve the effectiveness of the teaching of "principle". To play the role of classical works study, we should pay attention to the selection of text, focus on the study hours, study forms, study places. Effective coordinating online and offline, before and after class, problem-oriented, focusing on the guidance of the whole process of study, and the establishment of an incentive mechanism are effective paths to enhance the effectiveness of the teaching of "principle" through the study of classic works.

Taking the first employee vocational skills competition in 2023 Liaoning Province as an example, this paper elaborates on the significance of the competition in helping the construction of the periodic editorial team. It is pointed out that the purpose of the competition meets the needs of editorial team construction, that is, to reflect the requirements of editorial work, promote the stability and development of editorial team, and explore the "training + competition" model of editorial team construction; competition to enhance the overall quality of the participants, mainly reflected in the preparation, on-site answering and communication outside the examination room and so on; the post-competition effect, incentive effect, radiation effect and enabling effect continue to help the construction of the journal team.

Digital platform has become an important foundation for the development of the internet economy. The potential power of internet platform not only broadens the consumption channels of the public, but also drives the transformation and upgrading of platform enterprises. Because the free pricing model, dynamic competition and network externalities of internet platform enterprises differ from the traditional enterprise economy, the platform anti-monopoly phenomenon appears. The attribute construction of internet platform enterprises, the identification of relevant markets and market dominance all have an impact on the identification of abusing market dominance. Therefore, we should follow the responsive regulatory approach, implement classified supervision on internet platform enterprises, constantly improve the identification ideas, and accurately regulate abusive behaviors, so as to ensure the smooth operation of internet platform enterprises.

The educational concept of the "Great Ideological and Political Course" has put forward higher requirements for the construction of ideological and political theory courses in universities. Our study aims to find strategies and means to improve the teaching quality from five dimensions, namely, enhancing students' subjective initiative, improving the effectiveness of classroom teaching, promoting the innovation of practical teaching mode, improving the scientific evaluation system, and strengthening the construction of ideological and political courses teachers. Actively promote the integration and coordination of ideological and political courses with various educational resources in educational and teaching practice, and promote the high-quality development of ideological and political courses.

This paper expounds the significance of strengthening the combination of student party branch construction and ideological and political education in private colleges and universities in the new era, which is conducive to building the ideological and political pattern of "three-dimensional education", better implementing the fundamental task of establishing morality and cultivating people, and promoting the improvement of the comprehensive quality of college students.The results of the questionnaire survey of the party members of the three grades of college students in a private vocational college in Guangzhou show that the combination of the construction of student party branches and ideological and political education has problems such as weak ineffectiveness, insufficient attractiveness, and insufficient coordination.In view of these problems, the path of innovating the concept of integration, enriching the form of integration, and improving the integration mechanism is proposed, so as to realize the double improvement of the quality of student party building work and talent training.

The upgrading of industrial structure is not only a universal law of economic development, but also has universal guiding significance for enhancing the international competitiveness of developing countries. Based on the quasi natural experiment of the opening of the "Yixin Europe" China Europe freight train, relevant indicator data from 53 counties (cities) in Zhejiang Province from 2006 to 2021 were selected, and the DID model was used to test the impact and mechanism of the opening of the "Yixin Europe" China Europe freight train on the upgrading of county industrial structure. The results show that the opening of the "Yixin Europe" China Europe freight train can significantly inhibit the upgrading of industrial structure in Zhejiang counties. Every increase in the number of "Yixin Europe" China Europe freight trains by one standard deviation will reduce the level of industrial upgrading in Zhejiang counties by about 5.4%. The analysis of the impact mechanism shows that the financial support effect path inhibits the upgrading of industrial upgrading in Zhejiang counties, while the trade opening effect path promotes the upgrading of industrial upgrading in Zhejiang counties.

The digital economy utilizes new technologies and uses knowledge and information as production factors to continuously promote industrial structure transformation and upgrading, economic structure optimization, technological transformation, and production efficiency improvement. The study introduces foreign direct investment as an intermediary variable, based on data from 31 provinces and regions in China from 2013 to 2021, to explore the impact and mechanism of the development level of the digital economy on the upgrading and rationalization of industrial structure. Through empirical research, significant impacts and partial mediating effects were found. At the same time, through analysis of regional heterogeneity and threshold effects, it was found that the mediating effect has significant regional heterogeneity and conforms to the single threshold effect. Through robustness testing, it was found that lag effects exist and have different impacts on industrial structure.

Based on excellent traditional Chinese culture and guided by international social practice, it is an inherent requirement and value guideline for cultivating international talents. Taking the course of Compensation Management as an example, through literature review, investigation, analysis and other methods, the paper proposed that ideological and political education for the training of international talents should carry out the fundamental task of fostering virtue through education, integrating heightening a sense of identity of the Chinese nation into the teaching main line, integrate the core socialist values into the teaching idea, integrate the glorious history and great achievements of the Communist Party of China into the teaching content, integrate the positive psychological intervention into the teaching method, to cultivate socialist builders and successors with global vision and national feelings.

This paper based on fieldwork in the coastal area of southern Liaoning Province, analyzes the process of farmers shaping the new agricultural landscape in the transition of agrarian marketization as its central theme, and investigates the behavioral characteristics of farmers. The findings reveal that farmers adopt a pattern of "imitation - example - imitation again" while forming this new agricultural landscape, reflecting their conservative and cautious approach to life and production cultivated over thousands of years of farming culture. Furthermore, it highlights psychological traits rooted in traditional culture emphasizing familial ties and relationships within close-knit communities. Compared with previous studies on landscape anthropology, this paper endeavors to incorporate "policy" factors into its research framework, contemplating logical connections between national policies and rational economic behavior among rural farmers while introducing "economic income" as a novel element for exploring farmers' cognition and perception of the new agricultural landscape. By expanding upon the concept of agricultural landscape, this study contributes fresh insights to the field of landscape anthropology.

Using econometric models to study the regional digital economic capability is a complex task, involving data collection, model selection, variable construction and result interpretation. In this paper, panel data from 280 cities in China from 2015 to 2020 are employed to explore the relationships between digital economy, economic agglomeration and regional innovation capability using econometric models. Through the analysis of data using econometric models, the validity of the proposed models is confirmed. Based on the models, the following findings are obtained: firstly, there is a positive correlation between the digital economy and regional innovation capability, but it exhibits a trend of increasing marginal effects. Secondly, economic agglomeration serves as a mediator between the digital economy and regional innovation capability. Additionally, the promoting effect of the digital economy on regional innovation capability is the most significant in medium-sized cities, whereas it is not significant in large cities, very large cities and small cities.

"Probability Theory and Mathematical Statistics" is an important basic course compulsory for all majors in engineering. In order to improve the teaching efficiency, under the OBE teaching concept, the smart teaching model is applied to all aspects of the teaching design of the course, so as to maximize the advantages of smart teaching and improve the teaching efficiency. Guided by students' learning outcomes, reverse thinking is adopted to reconstruct teaching objectives and reorganize teaching contents. Then, teaching strategies are designed, and evaluation models are constructed, so as to improve students' learning effects.

Based on the optimal reception criterion of binary digital signal, the correlation of waveform corresponding to different symbols of MSK-LFM radar communication integrated signals is analyzed. The expression of waveform correlation coefficient is obtained using fresnel function. The relationships between the correlation coefficient and the initial frequency of LFM signal, the modulation frequency of LFM signal and the symbol modulation rate in the pulse are obtained through numerical simulation. The simulation model of MSK-LFM orthogonal modulation and demodulation is constructed for verification. The results show that the bit error rate can be reduced by increasing the initial frequency and the modulation frequency or reducing the modulation rate. When the initial frequency is much larger than the code modulation rate within the pulse, the different code waveforms can be considered as orthogonal.

In today's society where globalization and information technology are becoming increasingly advanced, changes in cultural concepts have a profound impact on college students’second language acquisition , which poses new challenges and requirements for educational practice. This article starts from the background of changes in modern social and cultural concepts, and explores in depth the impact of these changes on college students’ second language acquisition , as well as how educators can adjust their teaching strategies to adapt to these changes. Specific strategies include promoting cross-cultural communication and understanding, cultivating students' cultural adaptability, and utilizing technological tools to support second language acquisition and cultural education, aiming to improve the effectiveness of second language teaching and promote the comprehensive development of students.

In order to solve the problem that the traffic-cone detection accuracy of Formula Student unmanned vehicles in the track environment is not high, this paper proposes a three-dimensional traffic-cone target detection algorithm for Formula Student unmanned vehicle competition. The algorithm first extracts the ROI area from the point cloud collected by the lidar, then removes the ground points in the area, and finally performs point cloud clustering in the non-ground point cloud, and clusters the points belonging to the traffic-cone into a cluster to realize the detection of the traffic-cone in the track. This method improves the original single-attribute clustering method, and uses multiple attributes of point cloud intensity and density for clustering. Through the actual vehicle test of Formula Student unmanned vehicle, the three-dimensional traffic-cone object detection algorithm proposed in this paper achieves more than 90% accuracy in multiple track scenes, providing excellent performance algorithm for subsequent Formula Student unmanned vehicle competition.

In order to solve the problem of low permanent magnet adsorption efficiency of tank wall-climbing robots, a permanent magnet adsorption device based on Halbach array was designed, and the structural parameters of the adsorption device were optimized. Firstly, according to the leakage problem in the actual application of the adsorption unit, the leakage magnet was reduced by adding a yoke magnet. Secondly, based on the magnetization direction characteristics of Halbach array permanent magnets, the two adsorption devices with different arrangements were simulated and analyzed, and the arrangement with greater adsorption force under the same variables was selected. Finally, the structural parameters of the adsorption device were optimized and analyzed by the method of controlling variables. The simulation showed that the adsorption force per unit volume after optimization was increased by 21.2%, reaching 5.19N/cm³, which improved the utilization rate of magnetic energy.

The cultivation of internationalized talents is an inevitable and proper requirement in the context of the new era. By focusing on casting a firm awareness of the Chinese national community, combining the orientation and strategic development requirements of Dalian University for Nationalities, this paper summarize the current situation of international talents cultivation in universities in terms of international vision cultivation, international professional curriculum and teacher training, and summarize the factors affecting international talents cultivation, which suggest the innovative cultivation path of international talents in universities through the innovation of international education mode, the creation of multi-dimensional nurturing environment and the mutual synergy of professional courses, with a view to providing references for ethnic minority institutions to cultivate international talents with a sense of Chinese community.

In May 2023, China and Ecuador signed a free trade agreement, which will have a significant impact on bilateral trade between the two countries. By analyzing the current status and competition and complementary relationship between China and Ecuador, the thesis uses dynamic recursive GTAP model simulation analysis of the trade effect of the FTA. Studies have found that the scale of bilateral trade between China and Ecuador has increased year by year, and the trade complementarity between the two countries is strong. The FTA tariff reduction will promote the growth of bilateral trade between China and Ecuador, reduce technological trade barriers, and improve the impact of trade facilitation on the trade between the two countries, and the FTA is more conducive to expanding the exports of China. The two parties in China need to accelerate the effectiveness and implementation of various clauses of the FTA. China should increase its imported resource -based products and expand its exports and direct investment.

Based on the research results of Lu Xun in Southeast Asia in the past 20 years, this paper expounds the spread of Lu Xun and his works in Southeast Asia and their influence on Southeast Asia, especially on Southeast Asian Chinese literature. The study proposed that the research on Lu Xun's communication influence in Southeast Asia should pay attention to three entry points: Lu Xun as a "cultural symbol", Lu Xun as a "literary creation mentor", and Lu Xun's a de marginalization. At the same time, the study should maintain interdisciplinary awareness,and combine theoretical explanations with the historical and cultural background of Southeast Asia to promote the in-depth development of Luxun studies in Southeast Asia.

The heterogeneity in the development of the financial markets may lead to the imbalanced regional development of the equipment manufacturing industry. Based on data from the national, regional, and provincial levels of Liaoning Province, this paper employs EViews for empirical analysis to explore the impact of heterogeneous development of financial markets on the development of the equipment manufacturing industry. The study finds that the development of bank credit has not effectively promote the growth of the equipment manufacturing industry at the national, regional, and provincial levels. The development of the bond market effectively identifies the differences between production capacity and value creation capacity of the equipment manufacturing industry at these levels, demonstrating market efficiency. The development of the stock market effectively supports the development of equipment manufacturing industry at the national level, while its support is not significant at the regional and provincial levels. The macro non-financial factors affect GDP growth play a major role in the development of the equipment manufacturing industry at the national and regional levels, but have no significant impact on the development of the industry in Liaoning Province. The research results provide reference for promoting the development of the equipment manufacturing industry at the national, regional, and provincial levels.

To promote the rapid development and protection of ethnic villages, implement the rural revitalization strategy and promote folk culture, it is necessary to analyze the spatial distribution characteristics and influencing factors of the existing characteristic villages. Based on 97 villages with ethnic characteristics in Guangxi Zhuang Autonomous Region, with the help of ArcGIS 10.2, Geoda and other related technical software, this study explores the spatial distribution characteristics of villages with ethnic characteristics in Guangxi, their influencing factors are analyzed using the nearest neighbour index, kernel density estimation, global spatial autocorrelationand geo-detector. The results show that the villages with ethnic characteristics in Guangxi are spatially cohesively distributed, and the number of spatial clusters is relatively small, showing the spatial structure of "one core and many points" with Liuzhou as the core. Among the natural geographical factors, the topographic relief and elevation have a significant impact on the spatial distribution of the characteristic villages, which are mainly distributed in the flatter areas in the mountainous areas with higher elevation; among the human and economic factors, the distance from the central city, transportation conditions and the level of social and economic development are important factors that affect their spatial distribution.

Actinidia arguta is loved by people for its unique flavor and rich nutritional value. However, the canker disease of Actinidia arguta caused by a variant of Pseudomonas syringae pv. actinidiae (Psa) is currently a major challenge faced by the Actinidia arguta industry. To investigate the differences in soil element absorption between diseased and healthy plants, the S-type sampling method was used to sample the soil around diseased and healthy plants from Dalian Run Feng Yuan Rare Fruit Development Co., Ltd and Dalian Xing Bei Yuan Agricultural Technology Co., Ltd respectively. The results about content of nitrogen, phosphorus and partial metal element in the two types of soil showed that the content of nitrogen, phosphorus, potassium, calcium, sodium, magnesium, copper, and manganese in the soil around diseased plants was higher than those in the soil around healthy diseased plants. Therefore, it was speculated that the metabolic ability of diseased plants decreased and the absorption abilities of many elements were weakened.

Through a survey and research on the communication and integration practices of a typical pastoral township community in Inner Mongolia's pastoral area in strengthening the awareness of the Chinese national community, this study comprehensively demonstrates the close interaction and cooperation between the local government's active guidance and the local residents in promoting the communication and integration of various ethnic groups, from the excellent tradition of ethnic communication and integration in H town in history to the vigorous development of modernization in the new era, The mainline of forging a strong sense of community among the Chinese nation is steadily advancing in various aspects of economy, culture, and social life, truly showcasing vivid local practices.

There is limited research on question answering based on temporal knowledge graphs, with most approaches being confined to semantic or temporal information matching, and lacking the utilization of temporal constraint information. A method for question answering based on temporal constraint subgraph extraction is proposed in this paper, whereby subgraphs are pruned based on time range information, and subsequently, answer inference is performed utilizing the pruned subgraph and temporal information to derive the final answer. Experimental results demonstrate that the proposed method, compared to baseline models, exhibits significant improvements in answering complex and temporal-type questions.

In order to solve the problems of style uniformity, style overflow and residual black dots in multi-style font fusion, a method of multi-style font image fusion based on conditional normalization network is proposed.This method employs a font multi-style fusion model that adjusts the output of the pre-trained VGG19Net based on different style parameters. By extracting features from content images and multiple style font images separately, and using a new style loss function to measure the differences between content images and style font images, multiple style features are blended to generate new artistic font style images. The key components of this method are the convolutional layers and conditional normalization layers, which enable the transfer and fusion of multiple styles. Experimental results show that, compared to other two methods, the proposed method achieves an average improvement of 1.2% in similarity of content and 2.7% in similarity of style.

University journals are an important force in academic publishing in China, an important platform for showcasing Chinese academic discourse, and an important tool for serving school teaching and research. They shoulder the dual mission of education and publishing. University journals should focus on the talent advantages of the school, strengthen connotation-based construction, integrate internal and external resources, deeply explore the regional, disciplinary, and professional characteristics of the school, strengthen column construction, expand communication channels, continuously improve the quality, popularity, and influence of the journal, and provide high-quality support for the in-depth development of teaching and research work in the school.

In order to solve the problem that PCB bare boards were likely to have missed detections and false detections during the small target defect detection process, a PCB bare board defect detection algorithm based on improved YOLOv7, called YOLO-BCN, was proposed. First, the BRA attention mechanism was introduced into the original YOLOv7 backbone network to achieve more flexible computing allocation and content awareness, so that the network had dynamic query-aware sparsity. Then the CARAFE upsampling operator was replaced to extract more shallow features, thereby effectively improving the detection performance of the model for small targets. Finally, the NWD loss function was introduced and combined with IoU to optimize the regression loss function and reduce the sensitivity to small target position deviations. Experimental results show that the mAP@0.5 value and mAP@0.5:0.9 value of the improved YOLOv7 are increased by 3.28% and 2.74% respectively, compared with the original model, the F1 factor is increased by 3.91%, and the detection rate is 46.84 FPS, which effectively improves the accuracy of PCB small target defect detection.

Shadow areas in document images, which are prone to being influenced by lighting, can seriously affect users' recognition and reading. To address the issues of limited shadow removal open datasets and poor quality of corrected image shadow elimination, an improved Generative Adversarial Network (GAN) approach for document image shadow removal is proposed. This network introduces a shadow-aware directional context module and a mask attention structure based on the original dual-GAN architecture. An adaptive attention module is further appended to the mask attention module, which utilizes a parallel structure to adaptively adjust the convolution kernel size and fuse features of different scales to obtain more feature information. Additionally, a pixel-wise superimposition data augmentation method is adopted to solve the scarcity of document shadow removal datasets. Experimental results demonstrate that compared with DCGAN, ST-CGAN, and DSC methods, the proposed approach achieves improvements in evaluation metrics such as Peak Signal-to-Noise Ratio (PSNR) and Structural Similarity Index Measure (SSIM) on the self-constructed dataset.