Abstract.Tiered diagnosis and treatment (TDT) is a key lever for balancing medical resources, improving the efficiency of medical alliances, and mitigating China’s “difficult and expensive access to care” problem. With rapid advances in digital technologies, the research focus on TDT has broadened to include remote medical services and online-offline collaboration. This review synthesizes domestic and international literature on two fronts: (1) how remote medical services facilitate TDT and (2) how digital transformation drives cooperative medical alliances. Although many studies investigate … Read more →

Abstract.Reservoir model parameter inversion (history matching) is a crucial step in oil and gas field development for reducing the uncertainty in reservoir description and improving the accuracy of production prediction. However, traditional methods face issues such as non-uniqueness of solutions and high computational cost. In recent years, advancements in artificial intelligence (AI) technology, particularly deep learning methods, have provided new solutions to these problems. This paper conducts a systematic review of AI-based techniques for reservoir model parameter inversion, including end-to-end … Read more →

Abstract.This paper presents the design and implementation of a university canteen personalized recommendation system based on SpringBoot and SpringAI. The system adopts a front-end/back-end separation architecture. The backend integrates SpringBoot, MyBatis and a MySQL database, while the frontend is built with Bootstrap to provide a responsive interface. By incorporating large language model capabilities via the SpringAI module, the system supports intelligent dish recommendations and conversational management. Through user profiling, dynamic recommendation algorithms, and multi-canteen switching … Read more →

Abstract.The study of accumulation and enrichment factors for tight oil is a key focus in unconventional petroleum geology. This paper takes the Chang 7 tight oil reservoir of the Yanchang Formation in the Chenghao area, Ordos Basin, Utilizing data from well logging, drilling, and laboratory analysis, it analyzes the conditions of the source rock, reservoir, and caprock, as well as their controlling effects on the quasi-continuous tight oil distribution, to predict favorable zones. Research indicates that the pores in the Chang 7 reservoir in the Chenghao area are predominantly secondary dissolution … Read more →

Abstract.Bearing vibration signals are often susceptible to environmental factors and measurement system interference during practical acquisition, resulting in low signal-to-noise ratios and difficulty in extracting fault features. To address this issue, this study investigates a denoising method for vibration signals based on wavelet analysis and envelope demodulation. First, the fundamental principles of wavelet threshold denoising and Hilbert envelope demodulation are introduced, and the influence of different thresholding strategies on denoising performance is analyzed. Subsequently, time-domain … Read more →

Abstract.This essay argues that as advanced AI systems increasingly resemble minded agents, theuncertainty surrounding artificial consciousness carries moral consequences. While wecannot determine whether machines possess subjective experience, theories ofmind—including functionalism and critiques like Searle’s—show that their status remainsontologically open. Because the cost of wrongly denying consciousness is far greater thanthe cost of caution, we have ethical obligations to treat sophisticated AI as potentiallyconscious. Drawing on comparisons with infants, animals, and impaired human agents, … Read more →

Abstract.To solve the problems of iteration efficiency and damage assessment of vehicles equipped with CDC shock absorbers in spindle coupled road simulation test,the tests were carried out under 5 gradient current excitations (0A, 0.15A, 0.3A, 0.6A, 1.2A) based on independently developed current playback equipment.By analyzing the vertical acceleration damage rule of shock absorber towers and transfer function characteristics, it was found that the acceleration damage shows an obvious U-shaped distribution—with the maximum damage at 0A and 1.2A, and the minimum at 0.6A. The transfer function exhibits … Read more →

Abstract.To address the problems associated with traditional fracturing flowback fluid separation devices, such as reliance on manual operation and low separation efficiency, this paper presents the design of a novel automatic separation device based on a combination of gravity settling and multi stage filtration. The device adopts a multi chamber structure to successively achieve sand settling, filtration, and oil water separation, with automatic discharge of oil, water, and sand achieved through level sensors and gate control systems, enabling continuous operation. The internal flow field was … Read more →

Abstract.This study systematically analyzes the performance evaluation indicators and optimization directions of a semi-active suspension based on real-vehicle test data from Belgium roads and crater surfaces. A multi-dimensional performance evaluation system was constructed using axle head acceleration, vehicle body acceleration, suspension displacement, and CDC damper current data, including frequency domain performance indicators, time domain performance indicators, and energy consumption indicators. The results show that the semi-active suspension performs well in isolating high-frequency … Read more →

Abstract.Aiming at the problems in knowledge management of Electric Power Communication (EPC), such as insufficient use of unstructured information and lagging update of dynamic knowledge, this article studies the construction and dynamic update technology of knowledge map of EPC-specific Large Language Model (LLM). Firstly, the domain knowledge system is analyzed, and the core types of entities and relationships are defined. A knowledge extraction algorithm based on domain-enhanced prompt learning is proposed, which combines EPC terminology dictionary and prompt template library to improve the … Read more →

Abstract.Changqing gas field is the largest oil and gas field in China. The discharge of alcohol-free produced water continues to grow with the expansion of mining scale. This kind of wastewater has the remarkable characteristics of ' high turbidity, high salinity, strong corrosion and low pH value '. The composition is complex and the treatment is difficult. The national environmental protection policy has tightened the promotion of wastewater treatment from underground reinjection to ground standard treatment and comprehensive utilization. Efficient treatment and resource utilization have become the … Read more →

Abstract.This study investigates the "check-in" style consumption experience of consumers in internet-famous restaurants, using Restaurant A as a case study. It explores consumer experiences in the era of rapid "Internet+" development and provides operational strategies and recommendations for Restaurant A and other internet-famous restaurants. Through field surveys, online review collection, and questionnaire analysis, the study reveals that food preferences, social media influence, environmental experience, service quality, and price perception significantly impact consumer behavior. The findings … Read more →

Abstract.This study investigates the removal efficiency of heavy metals (lead and copper) from heavily contaminated soils in the old mining area of southern Yunnan Province. Using microwave-enhanced composite leaching agents (tea saponin-citric acid), we conducted single-factor experiments to optimize parameters including microwave power, treatment duration, citric acid concentration, tea saponin concentration, and solid-to-liquid ratio. The optimal conditions were determined as follows: 539 W microwave power, 40-second treatment time, 0.60 mol/L citric acid concentration, 5% tea saponin concentration, … Read more →

Abstract.In response to the hydrate blockage problems occurring during the production of the Shaanxi Northern Gas Field in the winter of 2023, this paper conducts an in-depth analysis of the main causes of freezing and blockage, including the persistent low-temperature environment in winter, the relatively high hydrogen sulfide content in natural gas, and the mismatch between the process design of the gathering and transportation system and the existing production conditions. Meanwhile, it summarizes the actual implementation effects of various comprehensive anti-freezing and anti-blockage measures, … Read more →

Abstract.Reservoir diagenesis is a core geological process that controls key physical properties such as porosity and permeability and determines the capacity of oil and gas storage and seepage. This paper systematically discusses the dual influence mechanism of diagenesis on the physical properties of reservoirs, reveals the causes of the strong heterogeneity of reservoirs, and explores its application value in geological exploration.Research indicates that diagenesis shapes the final reservoir space through both destructive and constructive processes. Destructive effects (such as mechanical and … Read more →

Abstract.Driven by the "double carbon" goal, the integration and development of China's oil and gas industry and new energy has become a key path to promote the transformation of energy structure and realize green and low-carbon development. At present, China has adopted policy guidance (For example, the Action Plan for Accelerating the Integration and Development of Oil and Gas Exploration and Development and New Energy) Promote oil and gas enterprises to practice "integration of wind, light and storage" and green hydrogen production (Xinjiang Kuqa 20,000 tons/year project), offshore wind power and … Read more →

Abstract.Unconventional oil and gas reservoirs have the typical characteristics of "low porosity, low permeability and strong heterogeneity", and their microscopic pore structure is the core factor to control the occurrence, migration and development efficiency of oil and gas. This paper systematically summarizes the technical system and theoretical method of characterization and evaluation of reservoir micro-pore structure. It is pointed out that at present, there are challenges such as difficulty in multi-scale data fusion, insufficient data heterogeneity and model adaptability, and interference of … Read more →

Abstract.This paper focuses on the modeling and simulation of the MT mode of the 1553B bus protocol processor B64843GC. Built on the QEMU platform, a dual-track mechanism is implemented that can be freely switched between word monitor and selective message monitor modes. It not only captures every command, data, and status word on the bus without omission, but also records only critical messages by programming multidimensional filters such as RT address, sub-address, and T/R bit, significantly reducing storage and post-analysis overhead. The system fully supports RT/MT combined mode, allowing the … Read more →

Abstract.Many Liberian small and medium-sized enterprises (SMEs) source goods from China but face high transaction frictions, including supplier-search costs, quality and compliance risk, and limited bargaining leverage. This paper develops a triadic decision framework to evaluate whether Liberian importers should pursue Direct Sourcing (DS), where the buyer negotiates separately with the supplier and a service agent, or Agent Sourcing (AS), where a procurement agent coordinates upstream and downstream contracts. We integrate (i) a centralized benchmark under stochastic demand (Weibull), (ii) … Read more →

Abstract.With the increasing development of urban underground space, the impact of foundation pit excavation on adjacent buildings has become a prominent issue. Based on extensive statistical parameters of loess regions and numerical simulations using Geo-Slope, this study analyzes the reduction pattern of the ultimate bearing capacity of adjacent strip foundations under unsupported excavation conditions. The research focuses on the influence of excavation depth (H), distance from the foundation to the pit edge (L), and building width (B) on the reduction of foundation bearing capacity (pu). A … Read more →

Abstract.A prediction model of critical liquid-carrying flow rate of gas-liquid two-phase flow considering the influence of droplet carrying was established. Combined with the dynamic equilibrium and the Banafi-Talaie boundary equation, the calculation method of gas/liquid/wall shear stress was improved. Compared with the four classical fully enclosed models, namely FLAT, ARS, Double rings and MARS, the experimental test data of the air-water and air-60% glycerol liquid systems show that the critical liquid-carrying flow rate obtained by the model established in this paper deviates from the … Read more →

Abstract.The backdrop of the accelerated advancement of the "dual carbon" goals and energy transition, coal rock gas, as a new type of unconventional natural gas resource, has emerged as a new highlight for increasing natural gas production and ensuring stable supply in China due to its enormous resource potential and unique development advantages. This paper systematically summarizes the major geological theoretical innovation achievements in China's coal rock gas exploration field, outlines the resource potential and current status of exploration breakthroughs nationwide and in key basins, elaborates … Read more →