Latest ArticlesTo improve the reliability of security monitoring results and achieve intelligent monitoring of buildings, research and design of building security intelligent monitoring methods were carried out based on sensor data fusion and scale invariant feature transform(SIFT) feature matching. Cameras, infrared detectors, vibration sensors were installed, building security data was collected, weighted average method was introduced to fuse and compress preprocessed data with point cloud data. Color images was converted into grayscale images, key points (feature points) and corresponding descriptors were extracted, and automatic stitching of building security monitoring images was designed based on SIFT feature matching. In the spliced video frames, the inter frame difference method was used to identify moving targets, and a threshold was set to distinguish between foreground(moving targets) and background, achieving tracking and intelligent monitoring of video moving targets. The comparative experimental results show that the designed method has a good effect in practical applications. This method can accurately identify all characters appearing in the monitoring interface, meeting the requirements of intelligent monitoring for building security.
In order to optimize patent services, the current situation and trend of global construction machinery patents were deeply analyzed, and the relationship between technological innovation and market demand was revealed. Based on the incoPa patent database, the patent data of global construction machinery since 1914 was searched. After denoising and cleaning the search results, the patent information of global construction machinery industry was analyzed from the aspects of application trend, regional market layout, technology flow, patent family number and its technical value, and the situation of foreign patent application in China. It is found that the number of patent applications for construction machinery in the world tends to increase steadily. Technological innovation and market demand promote the technological breakthrough of global construction machinery. China and Japan have obvious advantages, and Japan leads in the number of simple family patents.Enterprises with advanced patent technology of construction machinery in various countries have gradually realized their layout in various regions of the world. In the future, China needs to strengthen investment in high-end technology R&D, enhance innovation ability and deepen international cooperation, so as to boost technological innovation and rapid development of construction machinery industry.
Universities are important support for local economic use of scientific and technological innovation resources to form new quality of productivity.Analyzing the current situation of patent quality and conversion in universities is of great significance for improving the quality and conversion of patents in local universities. Taking universities in Anyang as the research object, a complete patent database of 7 universities in Anyang was formed through incoPat. Combined with the patent policies and regulations of Universities in Anyang, the quality and transformation status of patents were analyzed. It is found that the patent quality of universities in Anyang is not high, the effective patent implementation rate is extremely low, and the patent conversion situation is poor. The main reason is that there are obstacles in the system, operation, cooperation, and implementation of intellectual property management in universities. It is suggested to established and improve institutional mechanisms for industry university research cooperation, high-value patent cultivation, intellectual property talent cultivation, and intellectual property administrative management.
The influence of landmark buildings in Lanzhou was mainly analyzed and discussed, aiming to study the relationship between landmark buildings’ influence, traffic attributes and landscape attributes. Urban vitality was taken as the influence index of landmark buildings, traffic accessibility represents the traffic attribute of landmark buildings, population thermal data represents the landscape attractiveness of landmark buildings, and the driving factors of landmark buildings’ influence were explored through correlation analysis. The results show that the traffic attributes and landscape attributes of landmark buildings are positively correlated with the impact of landmark buildings. The promotion effect of traffic accessibility and landscape attractiveness on the influence of landmark buildings depends on the road traffic level of the location of landmark buildings. When accessibility is poor, the impact of traffic accessibility on landmark buildings is more important than the landscape attraction of landmark buildings themselves. When the degree of transportation convenience reaches a certain level, the promoting effect of transportation accessibility on the influence of landmark buildings will decline. Improving the transportation accessibility and landscape attractiveness of landmark buildings can both enhance the urban vitality around landmark buildings and thus enhance the influence of landmark buildings. Based on research results, the corresponding planning and design suggestions are put forward.
China’s provincial panel data from 2011 to 2021 were used, the entropy weight TOPSIS(technique for order preference by similarity to ideal solution) method was used to measure the level of agricultural low-carbon development, and financial support for agriculture as financial support for agriculture was expressed to illustrate the impact of financial support for agriculture on agricultural low-carbon development. The intermediary effect of rural human capital in the relationship between the two was discussed. It is found that fiscal support for agriculture has a positive promoting effect on low-carbon agricultural development, and rural human capital plays a mediating role in it. Heterogeneity results indicate that the impact of fiscal support for agriculture in northern regions is greater than that in southern regions.
In order to adapt to the actual situation of Ma’anshan and promote urban renewal and complete community construction, the field survey and data analysis method was adopted. Taking 103 communities (villages) in Ma’anshan’s central urban district as the research object, GIS(geographic information system)software was used to conducted data processing and visual analysis.The research reveals four functional classifications (life type, production type, mixed type and succession type) and five characteristics (spatial distribution, construction time sequence, spatial texture, population age and facility layout) of the present community. It is found that there were correlations between functional classification and 4 of the features, and there is a clustering effect in spatial location. Based on the functional classification and characteristics of the present community, eight types of construction guidance were summed up, and it is suggested that the needs of the population and the construction emphasis should be fully considered in the construction of the complete community at the city level under different construction guidance types.
The integrated development of urban and rural areas,as an important component of the path of socialist rural revitalization with Chinese characteristics,has received widespread attention from researchers in recent years.Based on CiteSpace software, CSSCI(Chinese Social Science Citation Index) related literature in the field of urban-rural integration development from January 2015 to September 2024 was taken as the research object,which is included in the academic journal database of CNKI(China National Knowledge Infrastructure).The number of publications,journal distribution,authors,publishing institutions, research hotspots were studied,and visual analysis was conducted.The research results indicate that the number of publications has shown a fluctuating and increasing trend in the past 10 years.The three hot topics in research on urban-rural integration development are urban-rural integration, urban-rural relations,and digital economy.The research process is as follows: the period from 2015 to 2017 was the initial stage,focusing on the issues in the integrated development of urban and rural areas. From 2018 to 2019 is a period of rapid development,focusing on solving problems in the integration of urban and rural development.From 2020 to 2024, in order to consolidate and deepen the stage,we will explore the internal driving mechanism of urban-rural integration development and new paths and methods to assist in urban-rural integration development. Future research should focus on enriching interdisciplinary perspectives, innovating and applying evaluation indicators,driving digital innovation, and guiding policies to better promote coordinated development and common prosperity between urban and rural areas.
The First Affiliated Hospital of Henan University of Science and Technology’s Oncology Hospital utilizes a high-difference monolithic main and podium raft foundation. To ensure construction safety, it is imperative to control and analyze the settlement differential of this foundation. The Midas GTS/NX finite element software was employed to construct a load-bearing structural model of the foundation pit, assessing the impact of the superstructure’s self-weight and the variation in construction loads on the differential settlement of the foundation. The findings demonstrate that with the increment of the superstructure’s load, the monolithic raft foundation exhibits continuous settlement at the high-difference junction without abrupt changes,the settlement of the main and podium raft foundation increases nonlinearly with the augmentation of floor loads, employing a monolithic raft foundation can effectively manage the settlement differential of the high-difference foundation.
Loose sandstone oil and gas fields often experience sand production during development due to factors such as declining formation pressure and increasing water content, which can have a serious impact on oil recovery and production, and even lead to production shutdowns. Taking the Linhe Formation, the main reservoir of Xinghua X Block in Bayan Oilfield, as the research object, based on the classic model of sand production prediction, the TAW-1000 rock mechanics test equipment and sand control screen comprehensive simulation test system were used to carry out the sand production trend analysis and sand control parameter optimization experiments for the target reservoir. Based on model analysis and experimental evaluation, the sand production probability of the reservoir in the early stage of development of Bayan Oilfield block was predicted, and the law of reservoir rock strength changing with saturation rate was clarified. The sand control technology and screen accuracy parameters suitable for the target reservoir were optimized and determined. The study can provide important reference for the sand control technology measures and intervention timing adopted for the development of X block in the target oilfield, and has certain production guidance significance.
The impact of digital economy on the common prosperity of urban and rural areas was empirically examined by using inter-provincial panel data from 2012 to 2022.It is found that the development of the digital economy can significantly improve the level of common prosperity between urban and rural areas through multiple channels. The increase in government intervention and regional industrial agglomeration has a significant positive moderating effect on this process. The digital economy also promotes common prosperity between urban and rural areas by improving the allocation of labor resources. In heterogeneity analysis, it was found that there are significant differences in spatial distance, income, and policies regarding the promotion of shared prosperity between urban and rural areas by the digital economy. When using spatial spillover effects to test the exogeneity of instrumental variables, it is found that the level of digital economy in each province has no significant spillover effect on its surrounding provinces.