bluuebunny/crossref_metadata_2025 huggingface dataset:
Digital Transformation of Express Industry
Authors: Huang Chen , Zuo Xuelian , Chen Tongtong
Published: December 2024

As a key component of the modern service industry, the express industry plays an increasingly important role in economic and social development. In recent years, due to the continuous evolution of the Internet, big data, artificial intelligence and other technologies, the express delivery industry has entered a period of opportunity and challenge of digital transformation. Digital transformation can not only improve the operational efficiency and service quality of the courier industry, but also bring consumers a more convenient and efficient courier service experience. This paper provides an in-depth analysis of the digital transformation of the courier industry, the background of the times, the system sorted out the many challenges it faces, and targeted coping strategies, in order to provide constructive reference for the sustainable development of the courier industry.
A Comparative Study of Pattern Recognition Models on the PaviaU Dataset
Authors: Wang Xuerui , Liang Senwei , Wu Hanjun , Wang Xinkun
Published: December 2024

This report provides a comprehensive study focused on land cover classification and remote sensing image analysis using the PaviaU dataset. The report first introduces the basic characteristics and application background of the data set, and then discusses in detail the application of feature selection and dimensionality reduction techniques, especially linear discriminant analysis (LDA) and principal component analysis (PCA). In terms of model application, the report not only uses traditional machine learning models, such as support vector machines, Bayesian and KNN posterior probabilities, but also explores the performance of these models under different parameter settings. Through a series of experiments, the study found that optimizing feature selection and dimensionality reduction techniques can significantly improve the classification accuracy of the model. Finally, the report compares different models and suggests alternative improvements.
A Study of the Impact of Emerging Digital Marketing Technologies on Consumer Behaviour
Authors: Liu Yijia
Published: December 2024

With the advent of the digital era, emerging digital marketing technologies have had a profound impact on consumer behaviour. This thesis explores the definition and classification of digital marketing technologies, analyses their specific impact on consumer behaviour, and delves into the relationship between technological adaptation and changes in consumer behaviour. The thesis provides an overview of how emerging technologies such as personalised marketing, social media marketing, augmented reality (AR) and virtual reality (VR) technologies, as well as voice assistants and smart home devices, are changing the way consumers make shopping decisions and interact with brands. The paper explores how these technologies are influencing consumers' purchasing decisions by improving perceived convenience, enhancing user engagement and providing personalised experiences. At the same time, the paper discusses the challenges of data privacy protection, legal and regulatory compliance, and ethics, and looks at the future direction of technology development, emphasising the importance of striking a balance between innovation and privacy protection. By systematically analysing these issues, the paper provides valuable insights and recommendations for companies when formulating their digital marketing strategies, in order to drive sustainable market development and consumer experience.
Financial Analysis of Six Culture Media Listed Companies in 2022
Authors: Deng Hongxin
Published: December 2024

Some time ago, among the listed companies of cultural media, Sanqi Mutual Entertainment, Kunlun Wanwei, Phoenix Media, century huatong, Light Media, WANDA CINEMAS and other companies released their 2022 annual reports one after another. This paper will summarize and interpret the financial results of these six cultural media companies, and discuss the development situation of cultural media industry in 2022 "the first year of AIGC".
The Global Coffee Industry: Legacy of Exploitation and Paths to Reform
Authors: Chan Kwun Leung
Published: December 2024

The global coffee industry is a product of socio-economic factors and colonial aspirations that have shaped it over centuries. Historically, coffee cultivation originated from plantations established by European colonial governments primarily in Africa and Latin America, often exploiting local labor to minimize costs and maximize profits. This legacy of exploitation has persisted, contributing to systemic inequities and power dynamics within coffee-producing countries. This paper aims to explore prevailing post-colonial ideologies and exploitative practices in the coffee industry and compares success stories from regions that have improved farmer welfare and labor conditions. A multi-case study approach is employed to contrast regions with high levels of labor exploitation in coffee plantations with those exhibiting more equitable labor practices. Findings reveal that coffee farmers in areas such as Latin America and Africa often face poverty, low wages, and harsh working conditions, while models like that in Yunnan, China, demonstrate significant improvements in farmers' lives through government support, fair trade practices, and cooperative production. The paper discusses the underlying causes of these disparities and proposes strategies for reforming the global coffee industry, including government intervention, establishing cooperatives, and implementing fair trade certifications.
Analysis of the Impact of Industrial Digitization on the Domestic Economic Cycle
Authors: Pei Jiayue
Published: December 2024

In recent years, under the influence of the background of globalization, the digitalization of manufacturing industry has become an engine to promote the domestic economic cycle. With the rapid development of information technology, digitalization technology is profoundly changing the production mode, management mode and market pattern of the manufacturing industry. According to the International Data Corporation (IDC) report, by 2027, the global investment in manufacturing digitization is expected to be close to four trillion U.S. dollars, and digitization will become an important driver for the transformation and upgrading of the manufacturing industry. In China, the manufacturing industry, as a pillar industry of the national economy, its digital transformation is of great significance to enhance competitiveness and promote high-quality economic development. On the one hand, digital technology improves the production efficiency of the manufacturing industry and also reduces production costs, enabling enterprises to better meet market demand and enhance market competitiveness. On the other hand, digital technology also accelerates product innovation and market response speed, enabling enterprises to launch new products faster and seize market opportunities. In addition, digital technology also helps to promote industrial chain synergy and integration, driving the development of related industries. This paper firstly explains the background and significance of the digitalization of the manufacturing industry, then discusses the direct and indirect impact of the digitalization of the manufacturing industry on the domestic economic cycle, and then analyzes the challenges and countermeasures faced by the digitalization of the manufacturing industry, so as to provide policymakers and business decision-makers with a scientific and reliable basis for decision-making. It is hoped that it can contribute to promoting the development of the digitalization of China's manufacturing industry and the benign operation of the domestic general cycle.
Research on NVIDIA's Development Strategy
Authors: Zhang Rui , Hu Lei
Published: December 2024

NVIDIA, as the world's leading supplier of graphics processing units (GPUs) and artificial intelligence (AI) computing hardware, has achieved rapid development and expansion in recent years. This paper studies the evolution of NVIDIA's development strategy and the factors for its success by analyzing NVIDIA's development history, industry environment and competitive landscape. At the same time, this paper also explores the challenges faced by NVIDIA and the direction of its future development.
The Impact of RCEP Agreement on China-ASEAN Agricultural Trade
Authors: Hu Guante , Li Dongsheng
Published: December 2024

Agricultural trade between China and ASEAN is an important part of bilateral trade and plays an important role in promoting agricultural development and advancing rural revitalization. The trade ties between China and RCEP member states, especially with ASEAN countries, have increased with the implementation of the RCEP. Although the development of agricultural trade between China and ASEAN has already reached a considerable scale. As an important partner of China in agricultural trade, studying the impact of the RCEP agreement on China's agricultural trade with ASEAN has practical significance in strengthening agricultural trade cooperation between China and ASEAN countries and fully utilizing the policy benefits of the RCEP agreement to release the potential of agricultural trade.
The Effect of Social Care Support for Children on Women's Fertility Intentions
Authors: Cai Xinmei
Published: December 2024

In recent years, in order to alleviate the pressure of population aging, China has actively promoted the policy of encouraging childbirth, but China is still in a period of low fertility. In this context, this paper uses the data of the 2020 China Family Longitudinal Survey (CFPS) to explore the impact of children's social care on women's fertility intention. The results show that participation in social care does not increase women's fertility intentions, but further discourages women from having children, and this situation affects women living in rural areas more obviously. Accordingly, it is particularly important to strengthen the construction of the social care system for children, reduce the pressure on women's families, and enable women of childbearing age to release more reproductive potential.
Exploring the Way to Improvemnet in the Cyber Insurance Industry
Authors: Cai Jinxuan
Published: December 2024

Cyber insurance is a nascent form of insurance in the digital economy. Its potential for growth and integration within industrial ecosystems in China has garnered increasing interest from academic circles in recent years. China stands to benefit from the promising prospects of cyber insurance, bolstered by national policy support and a dual focus on stimulating both supply and demand. The operational mechanism for establishing uniform norms remains imperfect, and there is a need to clarify the legal attributes of cyber insurance, its operational mechanism, and the types of insurance, as well as to address the unique challenges and issues of cyber insurance from the perspective of the insured to the insured. This paper analyses the characteristics and deficiencies of the primary development stage of China's existing cyber insurance industry based on existing research at home and abroad. It also puts forward suggestions for the improvement of China's cyber insurance industry from the perspective of the internal participant in the cyber insurance industry.
Research Progress on Multifunctional Cultivated Land Use
Authors: Chen Weiwei , Lu Nan
Published: December 2024

As a scarce land resource, cultivated land is the foundation for human survival, and the core element of regional food security and sustainable development. The protection of cultivated land is the basis for the survival and development of the country. The research on multifunctional utilization of cultivated land is of great significance to improve the comprehensive utilization efficiency of cultivated land and promote the sustainable use of cultivated land. We used the literature research method and the summary and induction method to review the research on the multifunctional use of cultivated land. The results show that (1) There are three main types of classification systems for cultivated land multifunctional use, ecological classification system, demand classification system, comprehensive supply and demand classification system; (2) The evaluation indexes of multifunctional cultivated land use were mainly selected from production, life and ecological function. The entropy method, fuzzy analytic hierarchy process (FAHP) and other methods were used to determine the weight of the evaluation index. (3) The value accounting of cultivated land resources is mainly calculated from economic value, social value and ecological value. (4) The management of multifunctional cultivated land is based on the characteristics of cultivated land joint production and cultivated land multi-functionality, and internalizes the externalities through institutional design to guide the rational competition of cultivated land functional utilization.
Study on the Relationship between Compulsory Education Funding and Economic Development in Guangdong Province
Authors: Mu Wencong
Published: December 2024

This paper employs panel data from 21 cities in Guangdong Province from 2017 to 2022 to examine the relationship between compulsory education investment and economic growth. The empirical results revealed a significant positive correlation between investment in compulsory education and the level of economic development. Additionally, there is a more apparent regional imbalance in compulsory education investment in Guangdong Province. In light of the empirical findings, this paper proposes that to more effectively promote the coordinated development of the regional economy and society, the Pearl River Delta region can serve as a source of radiation, facilitating industrial co-construction with other regions to stimulate economic growth. Furthermore, priority should be given to economically underdeveloped regions in terms of funding support for the compulsory education stage and the deployment of talent. Additionally, economic support and talent deployment will be provided to less developed regions.
Analysis of Enterprise Digital Transformation on the Investment Behavior of Institutional Investors
Authors: Li Linze
Published: December 2024

Serving as a pivotal avenue for fostering seamless integration between the digital economy and the real economy, enterprise digital transformation assumes a pivotal role in shaping a novel development paradigm and advancing the economy towards high-quality growth and as an important part of China's stock market, it is vital to develop the power of institutional investors and guide them to make rational decisions. Considering the characteristics of enterprise digital transformation comprehensively, using the method of financial report mining to measure enterprise digital transformation, and taking A-share listed companies from 2008 to 2021 as sample data, the impact of enterprise digital transformation on the investment behavior of institutional investors is examined by using a multi-temporal DID model. It is found that corporate digital transformation can increase the shareholding ratio of institutional investors.
Research on the Current Situation and Countermeasures of State owned Assets Management in Administrative Institutions
Authors: Yang Yanqing , Gan Yu
Published: December 2024

As a socialist country with a dominant public ownership system, the core status of public ownership is significantly reflected in the State's control and guidance over the key sectors of the national economy. As the representative of all citizens in the country, the State is the sole owner of state-owned assets. Therefore, effective management of state-owned assets is an objective necessity to promote the development of the national economy and a necessary requirement to maintain the basic economic system of the country. The core task of the audit agency is to ensure the transparency, compliance, and maximum efficiency of fiscal and financial spending, thereby implementing comprehensive and effective supervision. In this process, auditing the state-owned assets of administrative and public institutions is an indispensable part. This paper analyzes the weak links and causes of the management of state-owned assets in municipal administrative and public institutions in Yibin City based on the special audit process of municipal state-owned assets. Using resource value theory and property rights theory, the study finds that the management of state-owned assets in municipal administrative and public institutions is characterized by weak foundation management, unregulated lease management, inadequate use management, and low efficiency in project property rights processing. In order to enhance the management efficiency of state-owned assets by administrative and public institutions, each unit should: 1. Strengthen the professionalism and capabilities of managers; 2. Establish a sound system of state-owned asset management; 3. Optimize the allocation of state-owned asset management; 4. Clarify the scope of state-owned asset management; and 5. Improve the information management of state-owned assets.
The Impact and Spatial Spillover Effect of the Digital Economy in the Yangtze River Delta on the Income Gap between Urban and Rural Residents
Authors: Xu Yunqing , Li Dongsheng
Published: December 2024

At present, with the rapid development of the digital economy, the issue of the income gap between urban and rural areas has drawn much attention. Based on the panel data of 41 cities in the Yangtze River Delta region from 2011 to 2022, this paper conducts a benchmark regression and finds that the development of the digital economy has a "U-shaped" impact on the income gap between urban and rural residents. Subsequently, by establishing a spatial econometric model, it is discovered that there exists a significant inverted "U-shaped" spatial spillover effect of the digital economy on the income gap between urban and rural residents. Therefore, full consideration should be given to regional differences, the process of new urbanization should be continuously promoted, the integrated development of urban and rural areas and the coordinated development of regions should be vigorously advanced to realize the integration of the Yangtze River Delta, thereby creating more favorable conditions and opportunities for narrowing the income gap between urban and rural areas.
Research on the Tourist Attraction of Amusement Theme Parks Based on Tourist Experience
Authors: Chen Haiming , Guan Wenxi
Published: December 2024

This paper takes the Shunde Overseas Chinese Town Happy Coast Park as an example, using literature research and online text analysis methods to process and analyze 1459 online comments. The research results show that the attractiveness of Shunde Overseas Chinese Town Happy Coast Park lies in its unique cultural atmosphere and amusement facilities, while its disadvantages are the overcrowding during holidays, prolonged playtime, and high package ticket prices. These findings provide a reference for other amusement-type theme parks in strengthening their unique cultural atmosphere and package ticket sales model.
Research on the Impact of Digital Economy on Urban Green Total Factor Productivity
Authors: Chen Jifeng , Li Dongsheng
Published: December 2024

In order to reveal the inherent mechanism of the role of the digital economy in urban green total factor productivity, and provide policy recommendations for achieving the development of the digital economy and urban green development. This article is based on panel data from 274 prefecture level and above cities in China from 2011 to 2020, and empirically analyzes the possible impact and mechanism of the digital economy on urban green total factor productivity. The research results indicate that: (1) the development of the digital economy can promote the improvement of urban green total factor productivity, and for non resource-based cities, high administrative level cities, and southern cities, the role of digital economy in empowering urban green total factor productivity is more significant; (2) The mechanism test shows that the development of digital economy can enhance the level of green innovation, achieve industrial structure upgrading, and thereby improve urban green total factor productivity. In addition, the impact of the digital economy on urban green total factor productivity is constrained by the threshold effect of industrial structure upgrading.
Study on the Driving Effect of "Sports + Tourism" Industry Integration on the High-Quality Development of Foshan City Economy
Authors: He Dongjin , Zhou Jiajun , Zhong Zhengqi , Huang Chenghe , Li Yingmei
Published: December 2024

In the context of economic globalization and regional integration, industrial integration has become a key strategy for promoting high-quality economic development. Foshan City, as an important city in Guangdong Province, has the potential to develop the "sports + tourism" industry integration with its rich sports and tourism resources. This study aims to explore how this integration can contribute to the high-quality development of Foshan's economy, analyze its impact on economic growth, structural optimization, innovation drive and regional coordinated development, and propose corresponding policy recommendations. Through literature review, case study analysis and theoretical framework construction, this study examines the status quo, challenges and opportunities of the integration of the "sports + tourism" industry in Foshan City. The results show that industrial integration has played a positive role in promoting economic growth and structural optimization, but it also faces challenges such as insufficient vitality of market players and limited brand influence. In this regard, this study puts forward countermeasure suggestions such as optimizing the policy environment, innovating the industrial integration model, cultivating market players, strengthening branding and marketing strategies, and establishing risk management and response mechanisms. These recommendations aim to promote the in-depth integration of the "sports + tourism" industry in Foshan City and provide a new impetus for the high-quality development of the economy.
New Media Art Utilization in Commercial Photography
Authors: Sheng Yan
Published: December 2024

The women's economy has become a rapidly growing segment of the Chinese economy in recent years. The growth of the "she-economy" is a reflection of the development of feminist thinking. In recent years, the topics of "acoustic family, workplace relationship, family structure, mental health, male-female relationship" have been emerging, and modern women are pursuing a deeper exploration of their inner self, and by deconstructing their relationship with the society, they are gradually focusing on their own remodeling. With economic independence, women's more emotional spiritual world needs to be filled with more media. Photography has become a major part of women's consumption in recent years, and the commercialization of photography has become a unique way for women to express themselves. The huge market potential prompts the development of commercial photography needs more diversified integration, combining women's psychological healing with commercial photography to form a unique artistic expression and marketing strategy. It is the focus of this paper to explore commercial photography and new media development in a more innovative way, focusing on women's perspectives and serving the public with more practicality.
Study and Analysis of the Coupling Between Regional Innovation Ability and Economic High Quality in Anhui Province
Authors: Wang Gege , Deng Xiaojie , Lin Hanyu
Published: December 2024

This study in Anhui province from 2003-2022, a total of 20 years of regional innovation and economic development of high quality data, through the regional innovation driven ability of measurement, high quality development level, regional innovation efficiency and the correlation of the three aspects, analyze the development of economic quality, based on regional innovation efficiency and high quality economic development data, establish coupling coordination model, empirical research on the coupling relationship between the two. Found in Anhui province in recent years on the economic quality level and scientific and technological innovation ability have been steadily improved, high quality economic development comprehensive level and regional innovation efficiency is obvious coupling effect, present good development trend, however, the level of science and technology and the imbalance between innovation environment optimization, at the same time the growth of economic benefits and economic efficiency between also there is a certain lag. How to make good use of the coupling relationship between the development of regional innovation ability and high-quality economic development in Anhui Province to realize the mutual promotion of development is the top priority. In order to further improve the level of high-quality economic development, this paper finally puts forward relevant countermeasures and suggestions according to the research results.
Central Banks' Trade-offs between Multiple Objectives and Analyses of Inflation Stability
Authors: Zeng Ruohan
Published: December 2024

This paper examines the challenges and strategies faced by central banks in weighing the multiple objectives of economic growth, full employment, price stability and financial stability. It first analyses the importance of the objectives for the economy and their interrelationships, with particular attention to the determinants of inflation stability and the effectiveness of monetary policy. Next, the role of the Taylor rule, central bank independence, transparency and communication strategies in policy making is discussed. Future research directions include the economic impact of globalisation and digitalisation, the role of central banks under climate change, and the challenges and opportunities of technological innovations for policy decision-making. Through comprehensive analyses and policy recommendations, this paper aims to provide central banks with guidance on achieving stable and sustainable economic growth and promoting market confidence and expectation management.
An Impact Study on the Level of Employment and Revenues Towards the Adoption of Payment Model in the Retail Industry in Guangdong, China
Authors: Zhou Haixia
Published: December 2024

This descriptive-correlational study investigated the relationship between mobile payment adoption and its impact on employment and revenue growth in the retail sector. The study surveyed 300 retailer-respondents across Guangdong Province to assess the adoption rate of mobile payment systems, merchant satisfaction, and transaction frequency, and how these factors correlated with job creation and revenue growth. The findings revealed a significant relationship between adoption rate and job creation and revenue growth, highlighted the positive effects of mobile payment adoption on business performance. These insights provided valuable information for retailers in the region, suggesting that increasing adoption rates can lead to enhanced business outcomes, while emphasizing the importance of improving customer experience and personalized engagement strategies for long-term success.
Automatic Control Design of Pneumatic Solenoid Valve Based on Siemens PLC
Authors: Zhou Xiang , Shen Jinwei
Published: December 2024

PLC control system is an advanced industrial control equipment that can achieve precise control of objects and respond quickly to them. This paper aims to propose an automatic control design scheme for pneumatic solenoid valves based on the Siemens miniature PLC (S7-200). This scheme realizes precise automatic control of pneumatic solenoid valves by integrating low-voltage electrical appliances (including C6 type air circuit breakers, 220V-to-24V power supplies, terminal blocks, etc.) with Siemens PLC technology. During the design process, the STEP7-MicroWIN SMART software was used for PLC programming, and comprehensive debugging was conducted to ensure stable system operation. The system features high automation, strong reliability, and easy operation, capable of realizing timing switching and automatic adjustment of pneumatic solenoid valves.
Study on Aerodynamic Performance of Propeller with Tip Winglet
Authors: Yang Yueqi
Published: December 2024

Based on the Reynolds-averaged Navier-Stokes governing equations and the unstructured grid rotating/stationary sliding surface technology, this paper studies the aerodynamic layout and efficiency enhancement mechanism of the near-space propeller blade tip winglet configuration. First, the feasibility of the configuration is verified by comparing and analyzing different lift propeller layout schemes. Secondly, the aerodynamic layout design of the blade tip winglet propeller is studied by changing the winglet inclination angle and length parameter indicators. Finally, the ANSYS simulation analysis is used to calculate the influence of the winglet design on the propeller velocity vector distribution, blade pressure and propeller aerodynamic efficiency, and the performance influence law of the basic parameters is preliminarily established, and the overall design scheme of the new blade tip winglet propeller design is completed. The study shows that the blade tip winglet propeller layout is a reasonable and feasible technical approach to improve the aerodynamic efficiency in the near-space working environment, and it has a certain reference role in the development of new configuration propeller aircraft.
Fault Diagnosis of Strong Noise in Rolling Bearings based on EEMD-RRSD
Authors: Chen Shibin , Jiang Hanjun , Han Wenqiang , Liu Chengyu
Published: December 2024

Rolling bearings often operate under complex working conditions. When local faults occur in rolling bearings, their vibration signals contain not only periodic transient shock components related to fault information, but also harmonic components such as shaft rotation frequency and background noise. Therefore, bearings operate in high noise fault environments, and direct envelope demodulation analysis of rolling bearing vibration signals often yields poor results. A strong noise fault diagnosis method for rolling bearings based on EEMD-RRSD is proposed to address the above issues. This method first performs EEMD decomposition on the signal, and then reconstructs the signal based on spectral kurtosis and correlation coefficient criteria. Perform resonance sparse decomposition on the reconstructed signal, perform Hilbert demodulation analysis on the low resonance components based on the fast spectral kurtosis map, extract the characteristic frequency of bearing faults, and then diagnose rolling bearing faults. The analysis results of simulation signals and experimental signals show that this method can effectively extract the impact components in the vibration signals of bearing faults and diagnose bearing faults.
A Review of Fast Charging Technology for Power Batteries in New Energy Vehicles
Authors: Zhao Yibo
Published: December 2024

In the context of the increasingly urgent global transition in energy structure and environmental protection demands, the new energy vehicle (NEV) industry has rapidly emerged with its clean and efficient characteristics. Fast charging technology has become a crucial link in the NEV industry chain, playing a vital role in enhancing the overall performance of vehicles. This paper delves into the current development status and challenges faced by fast charging technology for power batteries in NEVs, with a particular focus on the pivotal role of thermal management technology during the rapid charging process. It provides a detailed analysis of the working principles, performance characteristics, and application environments of mainstream thermal management technologies, including air cooling, liquid cooling, phase change cooling, and heat pipe technology. Additionally, this paper examines the innovative applications of emerging technologies such as composite thermal management systems, microchannel heat pipes, and advanced materials. It points out that thermal management technology for fast charging batteries needs to overcome challenges in economy and reliability, moving towards integration and intelligence. By summarizing existing research achievements and shortcomings, this paper aims to provide theoretical support and practical guidance for the sustainable development of fast charging technology in NEVs, thereby promoting the prosperity and development of the NEV industry.
Key Technology of Relay Protection and Setting Calculation of Uhv Power Grid
Authors: Liu Jinghui , Zhu Guangze , Yang Zhe , Xu Zhen
Published: December 2024

As the core component of the modern power transmission system, the stable operation of the UHV power grid is of great significance to ensure the overall safety of the power system. As a key line of defense in the ultra-high voltage power grid, relay protection can detect and isolate faults in time, thus limiting the impact of the accident to the minimum range. Setting calculation is an important basis for relay protection, which involves a series of complex calculation and analysis processes. This paper deeply analyzes the key technology of ultra high voltage power grid relay protection setting calculation, discusses the specific factors of the substation configuration on the setting calculation, carefully analyzes the principles of the setting calculation, comprehensively analyzes the related protection device configuration strategy, and further study the potential problems existing in the setting calculation and its effective countermeasures. Through the in-depth discussion and research of these key technical problems, it provides a set of scientific and reasonable norms and guidance methods for the relevant personnel in the setting and calculation of the relay protection of the ultra-high voltage power grid, so as to effectively guarantee the long-term stable operation and safe power supply of the power system.
Wireless Charging System for Electric Vehicles
Authors: Yan Zheng
Published: December 2024

With the popularization of electric vehicles, wireless charging technology has shown significant advantages in charging convenience, security and other aspects, and has become a research hotspot in the field of new energy vehicles. The purpose of this paper is to discuss the principle, architecture, standards, protocols and development trend of the wireless charging system for electric vehicles. This paper expounds the basic concepts and main technical types of wireless charging, and reveals the application of electromagnetic induction and magnetic resonance in wireless charging; The composition and function of the wireless charging system, as well as the key technical challenges in practical application, are analyzed; The mainstream wireless charging standards and the importance of standardization are sorted out; The development direction, external influencing factors and future application scenarios of wireless charging technology are prospected, which provides theoretical basis and practical guidance for further research on wireless charging technology of electric vehicles.
A Dual-band Magnetoelectric Dipole Antenna by Microstrip Line
Authors: Zhang Hao
Published: December 2024

This paper proposes a dual-band magnetoelectric dipole antenna. By changing the size of the electric dipole and the magnetic dipole in the traditional magnetoelectric dipole, the two resonant frequencies are moved to high and low frequencies respectively, so as to realize the dual-band characteristics of the magnetoelectric dipole antenna. Finally, the two impedance bandwidths are measured to be 14.94% (1.6-1.86GHz) and 11.01% (4.25-4.74GHz), and the average gains are 9.8dBi and 6.3dBi respectively.
Metabolomics Study on the Mechanism of Junfang Tea in Regulating Glucose and Lipid Metabolism
Authors: Zhao Jingyi , Li Yanyan , Li Xue , Zhao Jianhui , Qiu Xiangjun
Published: December 2024

Objective: This study aims to explore the regulatory effects and potential mechanisms of Junfang tea extract on metabolic disorders induced by a high-sugar, high-fat diet. Methods: A high-sugar, high-fat mouse model was established, and 220 healthy male mice were randomly divided into seven groups: normal control group (NC), model control group (MC), positive control group (PC), and four Junfang tea extract groups (DYA, DYB, DYC, DYD). The NC and PC groups consisted of 35 mice each, while the other groups had 30 mice each. The NC group was fed a standard diet, while the other groups were fed a high-sugar, high-fat diet for 8 weeks to induce the model. Starting from the 9th week, the observation groups were administered different doses of Junfang tea extract by gavage, while the PC group received metformin and lovastatin as positive controls. In the 15th week, blood samples were collected, and serum was separated for the measurement of glucose (Glu), total cholesterol (TC), triglycerides (TG), high-density lipoprotein cholesterol (HDL-C), alanine aminotransferase (ALT), aspartate aminotransferase (AST), total protein (TP), albumin (ALB), urea, and creatinine levels. Results: Tea polyphenols and catechins are the main active components in Junfang tea, which regulate several metabolic pathways, including fatty acid oxidation, fat synthesis, and glucose metabolism, by modulating the AMPK, PPAR, and SREBP signaling pathways. Differential metabolite analysis showed that the abundance of Sinapoylhexoside and other metabolites was significantly higher in the NC group than in the MC group, suggesting its potential role in maintaining metabolic balance. Pathway Impact analysis revealed that Junfang tea significantly alleviated metabolic disorders induced by a high-sugar, high-fat diet through the regulation of key signaling pathways, such as AKT, mTOR, NF-κB, and JNK. Multi-group comparison analysis indicated that the metabolic state of group D showed noticeable improvement, approaching that of the normal control group (NC), although it did not fully return to normal levels. Conclusion: Junfang tea extract significantly reduced blood glucose and lipid levels in high-sugar, high-fat model mice and regulated glucose and lipid metabolism through multiple metabolic pathways, demonstrating its potential value in improving metabolic diseases.
The State of Research on PD1/PD-L1 Regulation by Non-coding RNA in Non-small Cell Lung Cancer
Authors: Fan Ruohan
Published: December 2024

Globally, non-small cell lung cancer (NSCLC) is the primary cause of death from cancer. Immunotherapy has advanced significantly in the medical management of NSCLC over the previous couple of decades. Particularly immune checkpoint drugs that target programmed death receptor 1 (PD-1) and its ligand 1 (PD-L1). Meanwhile, miRNAs are crucial for controlling the PD-1/PD-L1 pathway in NSCLC and are an increasingly significant field of investigation at the moment. For these reasons, this paper reviewed the mechanism of the PD-1/PD-L1 pathway in immunological escape from malignant cells and explored how non-coding RNAs (including microRNAs, long-chain non-coding RNAs, and cyclic RNAs) can affect the occurrence as well as growth of NSCLC by regulating PD-1/PD-L1 activity. Argument cites specific miRNAs such as miRNA-200c have the capability to alter the level of PD-L1 expression and thus enhance cancer innate immunity. Beyond that, LncRNA such as NEAT1 affect expression of PD-L1 and evasion of the body's defenses through interaction with miRNAs. In NSCLC, circular RNAs are performing a crucial function in evading immune responses. The article also discusses the efficacy and challenges of our self-developed PD-1 inhibitors in treating advanced NSCLC and emphasizes the need to improve the precision of immunotherapy. Finally, the article highlights the necessity for additional investigation to uncover more upstream modulators to enhance the prognosis and clinical outcomes of NSCLC individuals.
Cost of Illness – Acquired Brain Injury in Queensland Children: Evidence from a Population- Based Study
Authors: Fang Junya
Published: December 2024

Background: Traumatic brain injury (TBI) affects 280-1373/100,000 young people globally each year, with non-traumatic acquired brain injury (ABI) affecting an additional 82.3/100,000 [1]. ABI leads to long-term negative impacts on patients, families, and society, costing the global economy around US$400 billion annually [2]. Objective: This study estimates the direct (hospitalisation) and indirect (opportunity costs from bed-days) costs of children with ABI. It also analyses factors influencing hospital length of stay, helping guide resource allocation. Methods: Using an incidence-based, bottom-up approach, average length of stay is used to estimate medical costs. Regression analyses (linear, logit, and ordered logit models) were used to assess factors influencing length of stay and ABI severity. Results: In 2020, 5667 new ABI cases in Queensland incurred $0.112 billion in total costs. The cost per mild case was $15,863.41, while severe cases averaged $300,049.61. Mild cases represented 75% of total costs. ICU stay length and ventilatory support duration were significant factors in cost analysis. Conclusion: Preventing secondary injury should be a priority in ABI care.
Study on the Possibility of Aflatoxin Contamination in Fermentation Starter
Authors: Xiong Huan , Lu Zhijin , Duan Hongsheng , Zhang Zhi , Jian Xiaohong , Li Zaixin
Published: December 2024

This study explored the possibility of Aspergillus flavus contamination and toxin production during the fermentation of starter. Aspergillus flavus isolated from natural fermentation was selected as the research object, and mixed with Transocephalia racemosa and Mucor circinelloides to establish starter. Toxin production and toxin level of Aspergillus flavus in starter were analyzed by PCR, HPLC, competitive ELISAand mouse experiment. The results showed that the isolated Aspergillus flavus strain contained aflR, omt-1 and ver-1 gene fragments; HPLC chromatogram showed that this strain mainly produced AFB1 and the concentration was 16.8µg/kg; Aspergillus flavus grew well on the drug block under construction, completely covered the drug block surface after 36h, and had strong toxin production ability. When mixed with Transverse Rhizopus racemosus and Mucor circinellus to establish starter, the growth and toxin production ability of Aspergillus flavus were inhibited. Afteroral administration oftwo kinds of AFB1-containing extractsto mice, the liver tissue was obviously damaged, and Jianqu did not show inhibitory effect on the toxicity of AFB1. This study provides a reference for strengthening quality control and preventing pollution in the fermentation process of Jianqu.
Analysis and Application of Decision Models Based on Risk Assessment and Insurance Pricing
Authors: Huang Yunchu , Qian Chang
Published: December 2024

Under the current weather conditions with frequent global changes, insurance companies are facing a more complex and dynamic risk environment. Therefore, effective risk assessment and reasonable insurance pricing strategies are particularly important. This paper establishes a risk assessment decision model and an insurance pricing model. The risk assessment decision model utilises the frequency of local extreme weather events and average losses, combined with interest rates to calculate the present value of expected future losses, in order to assess whether to underwrite insurance in a particular area. It supports insurers' judgement and operations in area underwriting decisions by calculating risk tolerances and risk gaps. The Insurance Pricing Model focuses on setting reasonable insurance rates based on risk levels. It recommends higher premiums in high-risk areas to cope with possible losses and lower premiums in low-risk areas to increase market competitiveness. Using case studies from the US and Africa, the document demonstrates the effectiveness of these models in real-world applications. Using historical data and ARIMA models to predict future losses provides insurers with a scientific basis to help them make sound underwriting and pricing decisions.
A Study on The Impact of Economic Development and Environmental Pollution Relationship in Jiangsu Province
Authors: Zhang Rui
Published: December 2024

This paper selects per capita GDP of Jiangsu Province from 2000 to 2020 as the indicator of economic development, and uses chemical oxygen demand (COD) emissions, sulfur dioxide (SO2) emissions, general industrial solid waste generation, and hazardous waste generation as indicators of environmental pollution. Based on the theoretical foundation of the Environmental Kuznets Curve (EKC), the paper conducts an empirical analysis of the relationship between economic development and environmental pollution using Eviews software. The results show that:(1) The EKC for SO2 emissions fits an inverted N-shaped curve and has surpassed the second inflection point of this curve.(2) The EKC for general industrial solid waste generation fits an inverted U-shaped curve and has not yet reached its inflection point.(3) The EKC for hazardous waste generation fits a U-shaped curve and has surpassed the inflection point of this curve.
Research on the Commercialization and Productive Protection of the Atlas Silk: A Case Study of Two Atlas Garment Factories
Authors: Wu Yunqing
Published: December 2024

In 2008, Atlas Silk was recorded as a National Intangible Cultural Heritage. However, although the government has multi-facetedly supported it, its commercialization still has many difficulties. Through field research and in-depth interviews with the inheritors in two Atlas silk garment factories, this paper will elaborate on the challenges of the commercialization of Atlas Silk and the dilemma of income for its inheritors. Enterprises study the market expansion results from industrial production, which is based on attracting consumers' attention, especially from the general public and younger people. However, on another level, this kind of production devalues the real value of Atlas Silk material. Apart from that, a very small income earned by its craftsmen has put it into a severe crisis of sustaining from generation to generation for its inheritors. This contradiction can be solved by enterprises using innovative market strategies to give Atlas handicrafts more value and develop more room for inheritors' income, thus realizing a balance between cultural preservation and commercial development.
Conflict and Coexistence of Natural Resource Exploitation and Ancient Monument Group Conservation - Exploration of the Path of Sustainable Development
Authors: Song Andre Xiaoyu
Published: December 2024

The article reviewed several impacts of conflicts between resources exploitation and heritage protection in worldwide. Infrastructure construction as a major project for developing countries with poor heritage exploration might directly expose the archeological heritage under atmosphere, and lead to severe oxidization. Fossil fuel factories will release sulfur dioxide and nitroxide into the air, and following acid deposition will harm the surrounding heritages made with marbles or wood and cost high repairing fee for the government. The destruction of minority’s heritages by mining projects also happened around the world, which brings up concerns of minority rights lost and poor supervision to the companies. The unbalanced economic growth has result to the illegal deeds like stolen or looting frequently happened in developing countries with relatively poor checking, and lead to many valuable artifacts are traded in the black markets. With plenty of concerns and difficulties in applying heritage protections, the paper has stated the potential direction for solution, which involved a long-term cooperation between local government and international archeology organization through public education to complete legislation.