Abstract.Fire strike is a crucial part of the current UAV-assisted landing operations and seizing control, which directly affects the final success or failure of the landing operations. In view of the current problems that a single reconnaissance/strike UAV cannot cover the entire combat area in a short time and repeated low-altitude reconnaissance is easy to be detected and attacked, this paper models the UAV behavior based on behavior tree and finite state machine, constructs a kill chain for the coordinated attack of time-sensitive targets by a double-layer UAVs of reconnaissance and … Read more →

Abstract.With the acceleration of industrialization and the expansion of urbanization, environmental pollution issues have become increasingly severe, especially air pollution, which has become a global public health issue. Long-term exposure to high concentrations of fine particulate matter (such as MQ-2) and other pollutants can have a severe impact on human health, including respiratory and cardiovascular diseases. Therefore, monitoring environmental quality has become particularly important. Moreover, with the improvement of people's living standards and health awareness, more and more people are … Read more →

Abstract.In order to describe the interaction effect between tunnel excavation and uphill slope, taking Baishi No.2 tunnel as the engineering background, the numerical simulation method is used to reveal the interaction mechanism between tunnel excavation and uphill slope. The results show that (1) The safety factor of the stability of the slope at the entrance of the tunnel is significantly improved after brushing and strengthening. Then, with the excavation of the tunnel, the deformation of the slope gradually increases. After the excavation is completed, the safety factor of the slope gradually … Read more →

Abstract.The Baishi No.2 tunnel project of Lanzhou-Zhongwei railway as the background, the influence of rainfall and groundwater on the tunnel in Lanzhou area is discussed. The reasons for the deterioration of surrounding rock immersion in 15 tunnels at home and abroad are counted, and the reasons for the deterioration of surrounding rock immersion in loess tunnels are summarized and analyzed, and suggestions are given. The results show that the collapse of the surrounding rock of the soaking deteriorated loess is sudden, and the high incidence position is the tunnel vault, but the surrounding rock … Read more →

Abstract.In order to study the optimal combination of mechanical properties of modified concrete under multiple indicators, the orthogonal test results of rubber particle basalt fiber fly ash modified concrete were analyzed using queuing scoring method and matrix analysis method, with rubber particle substitution rate, basalt fiber content, and fly ash content as factors, compressive strength, splitting tensile strength, flexural strength, tension-compression ratio, and bending-compression ratio as indicators. The results indicate that the order of influence of various factors on the mechanical … Read more →

Abstract.In recent years, China’s automobile industry has witnessed rapid development, with the export volume of automobiles experiencing explosive growth. The Middle East region is one of China's important overseas markets, and its unique vehicle performance and adaptability under road, climate, environment and other conditions have become a key factor for domestic automakers in the process of overseas product development. This article focuses on the research and analysis of the environment, driving scenarios, and user habits in the Middle East region, with the expectation of providing reference for … Read more →

Abstract.With the rapid development of artificial intelligence technology, its application prospects in the field of medicine and health have attracted much attention, especially in the integration and dissemination of pharmaceutical science knowledge, where it has shown enormous potential. This study focuses on optimizing strategies for the dissemination of pharmaceutical popular science knowledge using artificial intelligence algorithms, proposing the use of advanced deep learning techniques to cluster, classify, and analyze patterns in large-scale pharmaceutical data, achieving personalized … Read more →

Abstract.In the new college entrance examination reform, the new writing question type of college entrance examination, "continue continuation writing", has a positive impact on the development of students' core literacy. Scaffolding teaching mode is a student-centered teaching mode, which can reduce the difficulty of continuation writing to a certain extent. In order to improve the teaching quality of post-reading and post-writing in senior high school English, this paper uses the methods of experience summary and case analysis, and on the basis of summarizing the scaffolding teaching mode, points out … Read more →

Abstract.As global environmental issues become increasingly severe, the overconsumption of traditional energy sources and the associated pollution problems have become more prominent, creating an urgent need to find cleaner and more efficient alternative energy sources. In this context, nuclear energy, as a low-carbon and high-efficiency energy option, has gradually gained widespread attention. With the continuous development of nuclear technology, the application of nuclear energy has expanded globally. However, the widespread use of nuclear energy has also brought about various environmental … Read more →

Abstract.With the rapid transformation of the manufacturing industry to intelligentization, efficient debugging of digital intelligent production lines has become a key link in the product development stage. This paper focuses on the virtual debugging system construction method for the digital intelligent production line. Firstly, digital twin technology is used to construct a digital twin model of the digital intelligent production line of the pager with the help of Tecnomatix digital twin software platform, which covers mechanical, electrical, and control logic, and other fields, realizes the analog … Read more →

Abstract.Components are the foundation of machine manufacturing, and domestic manufacturing enterprises require a wide variety of parts in large quantities during production. In industrial production, the inspection of parts is a critical step. This paper primarily addresses the issue of part inspection, focusing on industrial components as the research subject. Building upon the research and analysis of object detection in the field of deep learning, the YOLOv5 detection model is optimized. The experimental results indicate that the optimized model exhibits high accuracy and detection efficiency. It … Read more →

Abstract.To address the issues of discontinuous contact lines and sharp points on the tips of the gears in the cycloidal-involute rotor end profile of existing twin-screw vacuum pumps, a fully smooth rotor profile for twin-screw vacuum pumps is proposed. A concentric arc meshing model and a tip elliptical arc correction model are established, and the rotor profile equation is derived. Three-dimensional modeling is completed along with dynamic interference analysis. Furthermore, a comparative analysis of the rotor's geometric characteristics is conducted, focusing on aspects such as the leakage triangle … Read more →

Abstract.With the rapid development of smart home technology, environmental monitoring systems have become an important part of improving living comfort and safety. Through real-time monitoring of multiple sensors such as temperature and humidity, air quality, light intensity, and noise, environmental monitoring technology can automatically adjust the indoor environment, optimize air quality, temperature and humidity, and light, thereby improving living experience and energy efficiency. This paper reviews the application status of environmental monitoring technology in smart homes, focusing on the … Read more →

Abstract.At request of the authors, this article has been retracted by Boya Century Publishing in light of clear evidence that the results and conclusions are no longer valid. We thank the authors for notifying us so that the publication record can be amended accordingly. Retraction published: April 27, 2025. Read more →

Abstract.Based on genetic algorithm and greedy algorithm, this study proposes a scientific tourism route planning model to maximize tourists' visiting experience and cost-effectiveness. Firstly, this paper pre-processed the data of 352 Chinese cities and their 35,200 attractions, and screened out the 50 most attractive cities by using principal component analysis and TOPSIS method, taking into account factors such as city size. Subsequently, tourists' travel route planning was optimized based on genetic algorithm. Finally, greedy algorithm was introduced to study the customized routes under different … Read more →

Abstract.In this paper, greedy algorithm is used to optimize the planning of tourism routes based on multi-objective decision theory. The main goal of the research is to design the best travel route for foreign tourists by considering various factors such as time, cost and number of attractions. Firstly, this paper establishes a dataset including information of cities, attraction ratings, transportation time and cost through data integration and processing. Secondly, this paper used hierarchical analysis to evaluate 352 cities in multiple dimensions and identified the 50 cities that are most desirable … Read more →