To enhance the technical system for treating groundwater overextraction, four subsystems of the groundwater irrigation intake system, namely the water source system, intake system, water use system, and management system, are established by applying the principle of system dynamics. Through the analysis of the independent functions of the subsystems and their interactions, it is elucidated that the environmental conditions supporting the forward operation of each subsystem will transform into constraint conditions when the operation of each subsystem leads to the abnormal running of other systems. After the prompt feedback of the information system, the management department is required to adopt technical measures to manage and control the potential hazards during normal operation, ensuring that the environmental conditions and constraints of each subsystem remain within a reasonable range, thereby guaranteeing the normal operation of the entire system.

Taking the typical hydrological stations in the upper reaches of the Langchuan River Basin as the research object, the Mann-Kendall method and the cumulative anomaly method were adopted to conduct an in-depth analysis of the runoff trend. In this paper, the runoff data observed by four hydrological stations, namely Hexikou Station, Baimaoling Station, Yangshanling Station and Shijie Station, in the Langchuan River Basin over nearly 50 years (1970-2020) are selected and analyzed. It is found that the variation of water flow in the Langchuan River Basin is mainly comprehensively affected by factors such as precipitation, land use change and soil and water conservation conditions. The research results show that since 1970, the runoff volume of the Langchuan River Basin has generally shown a decreasing trend. Especially after 2000, the downward trend was obvious, and there was a sudden change point in 2015. This research method provides a reference for the basin water resources management in the southern Anhui region.

The leakage rate of water supply network is one of the important technical indicators that reflect the efficiency of water supply and the degree of water resource conservation. In order to explore the scientific calculation method and effective control measures for the leakage rate of water supply networks, this article starts with the causes of water supply network leakage, and takes the practical results of the construction of a water-saving society in Hebei Province as an example to introduce in detail the calculation and correction process of water supply network leakage rate. Based on this, control measures for water supply network leakage are proposed from the strategic, technical, and management mode levels. It can provide technical support for water supply enterprises, water conservation, and water resource management.

With the accelerating urbanization, the development of urban construction has led to a series of water resources issues. The carrying status of water resources serves as a crucial basis for assessing the sustainable utilization of regional water resources. Hence, the carrying capacity of water resources holds significant practical research value. Based on the endowment circumstances of water resources in the canal area of Cangzhou City and the current state of development and utilization, while mastering a large amount of actual information, taking 2023 as the current-year situation, the carrying capacity of water resources in the canal area was calculated, and the carrying capacity of the current situation was accounted for. The single-factor evaluation method of physical quantity indicators was employed to analyze and evaluate the current situation of water resources in the canal area of Cangzhou City. The results indicate that the total water usage in the canal area is not overloaded, the shallow groundwater is not overloaded, and the deep groundwater is severely overloaded.The comprehensive evaluation indicates that the water resources in the canal area of Cangzhou City are severely overloaded in 2023.

Electronic medical records (EMRs) are compilation of data concerning a patient's medical history and health status. The utilization of EMRs is imperative in the diagnosis of patients with spinal cord injuries (SCI), thus necessitating the development of an EHR-based rehabilitation prescription model for SCI patients. First, a dataset of EMRs containing 1443 paraplegic SCI patients was constructed, and data preprocessing was completed accordingly. Second, to address the problem of imbalanced EMRs, a multi-label classification based on MLSMOTE (Multi-label Synthetic Minority Over-sampling Technique) was proposed framework. Finally, seven multilabel classification models are used to predict patients' Physical Therapy (PT) prescriptions. The proposed MLSMOTE multi-label classification framework has been shown to adequately address the problem of category imbalance.The experimental results demonstrate that the RAkEL model exhibits significant improvement in numerous metrics when compared to the other six models. Specifically, the Hamming loss and ranking loss were found to be 0.1482 and 0.2616, respectively, while the precision, recall, and F1 score were determined to be 82.04%, 81.0%, and 78.07%, respectively.The MLSMOTE multi-label classification framework proposed in this study has the capacity to fully utilize EMRs data and effectively enhance the precision of rehabilitation therapy prescriptions.

To explore the autonomous path planning problem in the process of robot motion.Taking TSP problem as the model, on the basis of genetic algorithm, the orthogonal test method of 5 factors and 4 levels was used to explore the influence of different initialization parameters on the final path results through range and variance analysis. Through the example verification, the results show that the path results corresponding to the number of populations and the number of iterations have a large sum of squared deviations, corresponding to a large mean square. They have a significant impact on the results, while other parameters have less impact. The order of the influence of each parameter on the optimization results from large to small is: the number of iterations, the number of populations, the selection factor, the mutation probability, and the crossover probability. Using the orthogonal test method to optimize the parameters of the genetic algorithm can avoid the influence of the coupling effect between different parameters when the single parameter is optimized, so as to find a set of optimal parameter combinations suitable for different types and scales of problems. Using this parameter to initialize the genetic algorithm to solve such problems can quickly obtain the optimal solution.

An improved end-to-end lightweight license plate recognition algorithm based on YOLOv5 was proposed to address vehicle congestion caused by equipment failures or heavy traffic at highway toll stations. The algorithm was specifically designed for deployment on portable toll collection terminals with limited hardware resources to enable mobile manual charging/card issuing operations. Three key modifications were implemented in the YOLOv5 architecture. Firstly, the backbone network was replaced with FasterNet to effectively reduce computational complexity. Secondly, the ECA-Net attention mechanism was incorporated to enhance candidate region localization efficiency. Finally, the EIoU loss function was utilized to improve small target recognition accuracy. Experimental results demonstrated that the modified algorithm achieved 0.8% higher mAP and 18.9% lower FLOPs compared to the original YOLOv5-based license plate recognition model. Comprehensive field tests were conducted under actual portable toll collection terminal deployment conditions. The effectiveness of the algorithm was verified through practical application scenarios.

This study employed the orthogonal test method to investigate the effects of target porosity, water-cement ratio, admixture dosage, and fiber content on the 28d compressive and flexural strengths of vegetation concrete. By using range analysis and multi-factor variance analysis, the optimal levels of each factor were determined. The results indicated that these factors significantly influenced the 28d strengths of vegetation concrete. The optimal mix ratio was found to be: target porosity of 20%, water-cement ratio of 0.28, admixture dosage of 3‰, and fiber content of 2‰. At this mix ratio, the 28-day compressive and flexural strengths of the vegetation concrete reached 18.7 MPa and 4.2 MPa, respectively, while also exhibiting good vegetation performance and meeting the required standards for frost resistance.

The construction of the water rich and fractured zone in the water conveyance tunnel can easily lead to excessive deformation of the tunnel surrounding rock, mud and water inrush, and instability of the working face, seriously affecting the safety of the water conveyance tunnel construction. Therefore, this article relies on the Yinchuo Jiliao Water Diversion Tunnel crossing the rich water fractured zone project, and uses the TSP advanced geological prediction method to understand the characteristics of the surrounding rock in front of Zhangzi, which is relatively fractured, with poor integrity and strong water richness. In response to the unfavorable geological situation, a three-dimensional water conveyance tunnel model was established using finite element software. The vertical displacement of the tunnel arch crown, horizontal displacement of the arch waist, and uplift displacement of the arch bottom were compared under three working conditions: non grouting reinforcement, half section curtain grouting, and full section curtain grouting. The suitable reinforcement scheme and technical indicators of full section curtain grouting for this project were determined. Further combining the drilling inspection method, P-Q-t curve method, and excavation sampling method, the reinforcement effect of the full section advanced curtain grouting scheme adopted was evaluated. The research methods and conclusions of this article can provide reference for similar projects.

The depth of deep foundation pit of the main pier of Caijiazhuang Large Bridge is 11.25m, the groundwater level is high, and it is close to the Yangshe railway in operation. After analysis and trial calculation, large-diameter Locking steel pipe piles are adopted as the main supporting structure. According to the variation law of soil and water side pressure, the vertical spacing of the purlin surrounding system is reasonably designed. At the same time, in order to prevent water, the construction method of pouring isolated cement mortar in the lock is used to facilitate the removal of the steel pipe pile. The strength, horizontal displacement and settlement of existing railway subgrade outside the pit meet the requirements by using the straightening software to calculate the supporting structure. Moreover, the results of construction monitoring are in good agreement with the theoretical calculation value, and the removal of the protective pile is smooth. This has a good reference significance for the construction and support scheme design of deep foundation pit near the existing line.

Due to a series of subgrade problems caused by the change of dry and wet environment, in order to study the hydraulic properties of foam light soil subgrade, unconfined compressive strength tests were carried out on specimens with different water content and different silty clay content, and the variation laws of peak strength, residual strength and secant modulus E50 of foam light soil were analyzed. The results show that: (1) the peak strength, residual strength and secant modulus E50 of foam light soil decrease with the increase of silty clay content and soaking time; (2) The dynamic modulus shows a trend of first increasing and then decreasing with the increase of water content, and the higher the content of silty clay, the smaller the dynamic modulus; (3) In order to meet the requirements of the bearing capacity of foam light soil and have less brittleness, the content of silty clay should be 24%.

To predict the static and dynamic characteristics of the power battery box under typical working conditions and reduce the actual test times and costs, the strength and modal analysis of a certain type of electric vehicle power battery box is carried out to reduce the weight and improve the low-order mode. Based on the Cell To Pack (CTP) design methodology, this research accomplished the conceptual design of CTP type large module box scheme. The finite element analysis method and technology are used to analyze the load bearing and static and dynamic characteristics of the battery box under the actual working conditions, and then the wall thickness of the five regions of the battery box has been optimized.. The optimized box structure meets the safety requirements of mechanical strength and stiffness under collision extrusion andsudden braking impact conditions, reduces the weight of the box structure by 17 %, and increases the first-order mode by 14 %. The optimized power battery box still meets the safety requirements under typical working conditions under the condition of mass reduction, improves the low-order mode, and effectively avoids the excitation area.

In order to explore the energy consumption performance of rural residential buildings and the sensitivity of factors affecting energy consumption, a rural concave residential building in Anhui province was taken as a typical building. DeST-h software was used to analyze the heat transfer coefficient of external wall, heat transfer coefficient of external window, heat transfer coefficient of roof, solar heat gain coefficient of external window, heat disturbance of light and ventilation ventilation times. The influence of these parameters on the total annual building load of rural residential buildings and the change of energy saving rate of each influencing factor are studied, and the sensitivity of these parameters is analyzed. It is found that the sensitivity order for the total load of such rural buildings is as follows: external window heat transfer coefficient, external wall heat transfer coefficient, ventilation times, roof heat transfer coefficient, solar heat gain coefficient of external window and lighting heat disturbance power, hoping to provide a theoretical basis for the energy-saving transformation of rural houses in China.