卷 8 ， 期 1 ， 2025
- 摘要：This paper proposes a classification model that combines the ant colony optimization (ACO) algorithm with the support vector machine (SVM) for the prediction of intracranial aneurysm rupture risk. The dataset construction takes into full account the morphological and hemodynamic characteristics of aneurysms. Through the processing and calculation of CT images, a comprehensive dataset has been constructed. The ACO algorithm is used to optimize the parameter selection of SVM, which improves the predictive performance of the model. Four different kernel functions are selected in the SVM, and the performance of the models with different kernel functions is evaluated using confusion matrices and ROC curves. The results indicate that the Sigmoid kernel function model performs the best, providing an important reference for the diagnosis and risk assessment of intracranial aneurysms.关键词：ant colony optimization;support vector machine;intracranial aneurysm;aneurysm rupture0|0|0更新时间：2025-07-04
- 摘要：Rock fragmentation is a crucial process in the mining industry for extracting valuable minerals, and its efficiency and safety are of vital importance to the entire mining operation. However, open-pit mining environments are often confronted with complex and harsh conditions, such as extreme weather, insufficient lighting, and dust-laden atmospheres. These factors not only significantly reduce the efficiency of rock fragmentation but also greatly increase the probability of safety accidents. Against this backdrop, this paper proposes an improved YOLOv8n (You Only Look Once) algorithm for rock detection under harsh conditions. The core innovations of this algorithm include: (1) the introduction of a differential edge enhancement module in the shallow layers of the YOLOv8n backbone network to enhance the edge information of the detection targets and effectively highlight the contour features of rocks in complex backgrounds; (2) the construction of a global color transformation matrix using a matrix-based color correction module to perform global color transformation and local detail optimization on the input feature maps, thereby further improving the robustness and accuracy of feature representation. Experimental results demonstrate that the proposed method can significantly enhance the precision of rock detection under harsh conditions, providing an efficient and reliable detection technology for rock fragmentation operations in open-pit mining.关键词：object detection;rock fragmentation;harsh environment;edge enhancement;color correction2|0|0更新时间：2025-07-04
- 摘要：To tackle the problem of joint dynamic allocation of task offloading in network slicing-oriented space-air-ground integrated network, a network resource allocation strategy based on game theory is proposed. Firstly, considering the constraints of node types and resource sizes across different network slices, the problem of network slice selection for joint task offloading and network resource allocation is formulated as a mixed-integer problem. The objective is to maximize the user’s service experience, and it has been proven that this problem is NP-hard. Subsequently, a task offloading algorithm based on strict potential game is proposed considering the competitive relationship in the process of users’ task offloading. Negotiation of task offloading policies among users to reach a Nash equilibrium. Finally, the simulation results verify the effectiveness of the proposed algorithm in this paper, which is able to solve the resource allocation problem of space-air-ground integrated network oriented to network.关键词：space-air-ground integrated network;network slicing;resource allocation;task offloading2|0|0更新时间：2025-07-04
- 摘要：This paper has researched the reason about satellite control system attitude and orbit control computer communication with the on-board data processing computer under unequal period of 1553B bus, lost data packages, by prioritization design the attitude and orbit control computer write data and update the buffer logic for the on-board data processing computer system read the data, has designed double-buffer and triple-buffer algorithm without changing the communication protocol with the on-board data processing computer. The results of the simulation indicate that double-buffer and triple-buffer algorithm both can improve data transmission reliability,and solve effectively about the problem of lost data packages in 1553B bus,has conduct a comparative analysis of the characteristics and application scenarios of double-buffer and triple-buffer algorithm.关键词：1553B bus;double-buffe;triple-buffer;semi-physical simulation validated;data transmission0|0|0更新时间：2025-07-04
- 摘要：This paper takes the impact of transient voltage changes in Nanchang Metro on the evacuation indicators and escalators in the interval as the research object for analysis and research, and proposes corresponding solutions. This study focuses on the impact of transient voltage changes in the subway on electromechanical equipment. By means of analyzing fault cases, data monitoring and other methods, it is determined that external voltage fluctuations are the main factors causing transient voltage changes. In response to the faults of evacuation indicators and escalators, measures such as optimizing the power supply of EPS and adjusting the power supply phase of the brake controller are implemented respectively. And the status of electromechanical equipment is tracked and observed by combining the real-time monitoring of the integrated monitoring system with regular special inspections. After the implementation of these measures, the faults of evacuation indicators and escalators have significantly decreased, and the operation quality has been effectively improved, laying a solid foundation for the stable operation of the subway.关键词：metro;voltage transient variation;electromechanical equipment;operation quality2|0|0更新时间：2025-07-04
RESEARCH PAPER
- 摘要：With the deepening of digital transformation,municipal operators are facing issues such as scattered information systems,poor user experience, and insufficient security. This paper introduces the municipal unified portal agile support solution-Yun Shang Mobai, constructed by China Mobile Fuzhou Branch based on the smart middleware platform. The solution integrates the capabilities of the provincial company's middleware to achieve key functions such as unified portal integration, personalized account management,and unified workflow engines,effectively enhancing the user experience and security of information systems,reducing construction and operation and maintenance costs,and providing an effective solution for the digital transformation of municipal operators.关键词：smart middleware platform;municipal operators;unified portal;agile support;Digital Transformation1|0|0更新时间：2025-07-04
CORRESPONDENCE
- Technical support is provided by Beijing Founder electronics co., LTD 京ICP备09064830号-19
京公网安备11010802024621 - It is recommended to read the content of this site in Chrome&IE9+. Please switch to extreme mode in browser 360.
- Cookies We use cookies to help provide and enhance our service and tailor content. By continuing, you agree to the use of cookies.
- Total Visits：86982 Visits Today：46
0