Latest ArticlesIn order to realize the prediction of safety risks for working in electric confined spaces, considering four risk sources including personnel, tools, environment,and management,the safety risk weight of different sources was calculated using analytic hierarchy process, meanwhile the actual safety conditions of risk sources were judged by subjective evaluation. Based on that, the final operating condition risk assessment method score was obtained by adjusting the initial LEC score. In particular, for environmental risk, the method assessed coupling risks from multiply kinds of toxic and harmful gases. A case study in electric confined spaces shows that the method is highly operable, presenting accurately quantitative evaluation on work risk level.
Configuring distributed synchronous condensers in renewable energy collector stations is a viable approach to mitigating transient overvoltage at grid connection points. Traditional distributed synchronous condenser’s location and capacity selection strategies are mostly based on fixed output scenarios of renewable energy, ignoring the randomness of wind and solar power output at each node, making it difficult to ensure the effectiveness and adaptability of the strategy. In view of this, the maximum grid connected power of renewable energy based on confidence intervals was estimated. A multiple renewable energy stations short circuit ratio index that takes into account the randomness of renewable energy is proposed to quantitatively evaluate the voltage support strength of each node in the power grid. Based on this, a distributed synchronous condensers location and capacity determination strategy is formulated. Simulation results demonstrate that the proposed strategy can accurately ide.jpgy nodes with weaker voltage support capabilities under actual fluctuations of renewable energy outputs. Compared to conventional strategies, it proves more effective in suppressing transient overvoltage in the sending-end system, offering technical support for large-scale renewable energy integration into power grids.
Under the background of the construction of the digital twin Yellow River, the applicability of various intelligent devices as the basic components of the three-dimensional monitoring and perception system of the digital twin Yellow River, namely the integrated intelligent monitoring and perception system of “outerspace- sky-ground- water”(OSSGW) was studied. Using the device end as the target layer, a feature index layer was established to evaluate the cost-effectiveness and applicability of the device. The feature index layer includes three secondary evaluation dimensions, namely performance, economy, and usability, with a total of eight index factors. Six levels of index factor assignment criteria were established, and an index layer assignment matrix was created. Then, the entropy method is used to calculate the weights of each index factor, and the TOPSIS(technique for order preference by similarity to ideal solution) method was used for comprehensive applicability calculation to obtain the scheme layer, providing decision support for equipment selection.
With urban digital transformation accelerating, the role of smart property management in community governance becomes increasingly prominent. As a pioneer in smart property management, Shanghai is enhancing the community health evaluation system through digital means. However, the current system faces challenges in adaptability, accuracy, fairness, and deep analysis, requiring urgent optimization. This study analyzed the issues in the existing evaluation system and proposed optimization strategies. Flexible and personalized evaluation standards should be constructed to suit different community types, ensuring comprehensive and accurate assessments. Targeted evaluation methods should be adopted, focusing on residents’ subjective experiences and satisfaction to align scores with actual perceptions, thus improving fairness and comparability. Data analysis and mining capabilities should be strengthened to inject new impetus into grassroots community governance. By optimizing Shanghai’s evaluation system, other cities are provided with a reference to advance the digitalization of community governance, enhance residents’ quality of life, and achieve sustainable social development.
The current situation and challenges faced by local research institutes in the field of technology transfer was studied, and the urgent need for establishing a performance evaluation system was elaborated. The findings revealed prevalent issues such as mismatches between research outcomes and market demands, shortages in talent for commercialization, inaccuracies in technology readiness level assessment, and weaknesses in capital operation mechanisms. In response to these challenges, a evaluation system was developed, encompassing critical dimensions including technology readiness, market adaptability, economic benefits, social impact, and innovation drive. Further validation through case studies demonstrated the system's significant effectiveness in enhancing the efficiency and quality of technology transfer, optimizing resource allocation, motivating researchers to actively engage in commercialization activities, and boosting regional economic development and innovation capabilities.
With the rapid development and transformation of the global economy, digital inclusive finance, as an important direction of new quality productivity, has a profound impact on the traditional mode of financial services and the vitality of regional markets, and provides new impetus and possibilities for the progress of urban technological innovation. Using the data of provincial level from 2011 to 2021, the two-way fixed effect model was used to empirically study the relationship between digital inclusive finance and urban technological innovation, and further analyze its mediating effect from the perspective of industrial structure. The results show that digital inclusive finance significantly promotes urban technological innovation, mainly by improving the industrial structure to enhance the urban innovation capacity. Based on the conclusions, some suggestions are proposed to help further anchor the goal of building a financial power and solidly promote high-quality economic development.
The update and progress of generative a.jpgicial intelligence technology represented by ChatGPT has brought profound changes to human lifestyles and production methods. While providing convenience for humanity, it also has potential legal risks, such as leading to the leakage and abuse of personal privacy information, triggering a series of intellectual property infringement issues. Around these issues, explore the ownership of intellectual property caused by generative a.jpgicial intelligence products. If the ownership of intellectual property is not determined, it will inevitably affect the interests of multiple parties. Therefore, it is necessary to timely determine the subjects who enjoy rights, assume obligations, and bear responsibilities through the improvement of laws and regulations. At the same time, a regulatory system should be established to strengthen the supervision of the entire generation process, and a punishment mechanism should be established to increase the crackdown on infringement behavior. Multi subject comprehensive linkage governance should be implemented to balance the interests of various subjects and regulate various intellectual property issues caused by generative a.jpgicial intelligence, including ChatGPT.
Using new improved entropy Right-TOPSIS(technique for order preference by similarity to ideal solution)model, Chinese manufacturing high quality development level from 2012 to 2020 was evaluated, the dimensions were analyzed, and the timing evolution characteristics of manufacturing development of high quality were summarized. Spatial analysis method was used to study the spatial distribution characteristics and evolution trend, and with the help of the Thiel index and its decomposition method, the development of the manufacturing high quality regional gap was studied. The results show that the overall level of high-quality development of China’s manufacturing industry is increasing, in the region, from the stability of the central region, the western region and the eastern region, from the spatial evolution analysis, there is some spatial agglomeration, from the regional gap, the overall gap of the manufacturing industry is increasing and then decreasing, and the regional difference is the main source of regional differences, and the eastern region is the main contributing region of the regional difference.
Turpan City is an important hub of the Silk Road and a historical city, with its rich natural and geographical advantages, has seen the culture and tourism industries play a central role in the economic development of Turpan City in recent years. The pursuit of high quality economic and social development has become more urgent with the implementation of the strategy of rural revitalisation. Taking the ethnic minority settlement area of Turpan City as the research object, the impact of economic and social development in Turpan City is analysed from the perspective of cultural and tourism integration based on the panel data of Turpan City from 2013 to 2022. The results show that the improvement of the degree of cultural and tourism integration can effectively promote the development of Turpan City's economy. Gaochang District, Shanshan County, and Tokon County differ in terms of resource distribution, geographic environment, and level of economic development, and with regard to the regional differences, the effect of the degree of cultural and tourism integration on the economy of Gaochang District is more obvious than that of Shanshan County and Tokon County.
The evolution process of the national and local policy system for promoting the transformation of scie.jpgic and technological achievements was summarized and sort out. The shortcomings and bottlenecks of the domestic university scie.jpgic and technological achievement transformation system were investigated and condensed. The international paradigm and typical experience of the United States, Germany, and Israel in promoting the transformation of scie.jpgic and technological achievements through integrated innovation of production and research were analyzed systematic suggestions and countermeasures are proposed from four aspects: policy guidance, direction refinement, innovation team building, and factor aggregation and integration. which provide decision-making basis for the government and universities to formulate policies to promote the transformation of scie.jpgic and technological achievements.