-
Research Article
A Practical Study on Risk Assessment for Prevention and Control of Infectious Diseases in Comprehensive Hospitals
Issue:
Volume 14, Issue 4, August 2026
Pages:
128-134
Received:
8 June 2026
Accepted:
14 July 2026
Published:
6 August 2026
Abstract: Objective This study aimed to systematically evaluate and mitigate risks associated with infectious disease prevention and control in general hospitals, with the ultimate goal of strengthening institutional capacity for infection management. Methods A hybrid risk analysis approach combining the Delphi technique and Failure Mode and Effects Analysis (FMEA) was employed to identify, assess, and prioritize key vulnerabilities in hospital-based infectious disease control processes. Following risk prioritization, evidence-informed interventions were designed and implemented for the highest-ranking issues, and their impact was rigorously measured through pre- and post-intervention comparisons. Results Twenty-two distinct risk elements influencing infectious disease management efficacy were identified and stratified by severity and likelihood using FMEA scoring. The five most critical areas demanding urgent action were: (1) fragmented or under-resourced internal structures dedicated to infection control; (2) outdated or non-integrated health information systems lacking real-time surveillance capabilities; (3) inconsistent application of triage and initial screening protocols; (4) variable adherence to standard infection prevention practices across clinical units; and (5) inefficient interdepartmental coordination during the transfer of suspected or confirmed infectious cases. Post-intervention outcomes demonstrated marked improvements: the timeliness of mandatory infectious disease reporting rose from 84.66% to full compliance (100%); case report completeness reached 100%, up from 97.89%; and the median reporting time per case was halved—from 10 minutes to 5 minutes. Statistically significant enhancements were observed across all evaluated compliance indicators (p < 0.001). Conclusion The synergistic application of the Delphi method and FMEA facilitates proactive risk detection, dynamic monitoring, and responsive mitigation—transforming reactive practices into a robust, iterative, closed-loop governance framework that substantially elevates the quality and reliability of infectious disease prevention and control in general hospitals.
Abstract: Objective This study aimed to systematically evaluate and mitigate risks associated with infectious disease prevention and control in general hospitals, with the ultimate goal of strengthening institutional capacity for infection management. Methods A hybrid risk analysis approach combining the Delphi technique and Failure Mode and Effects Analysis...
Show More
-
Research Article
Experimental Study on the Technology of Fiber-Admixture Composite Stabilization for Ultra-Soft Soil
Shaokun Yang
,
Mingfei Xu,
Yongcun Deng*
Issue:
Volume 14, Issue 4, August 2026
Pages:
135-145
Received:
19 May 2026
Accepted:
26 June 2026
Published:
6 August 2026
Abstract: To address the technical challenge associated with the inability to utilize dredged sediments from existing rivers and lakes, this study focused on dredged ultra-soft soil from coastal areas. Taking into account various factors such as soil moisture content, dosage of curing agent and foaming agents, as well as fiber type, dosage, and size, research was conducted on lightweight solidification technologies suitable for fiber-reinforced high water content ultra-soft soil. The test results indicate: 1) The fiber reinforcement effect significantly improved the brittle failure mode of the solidified lightweight soil, substantially enhancing the structural stability and ductility, with basalt fiber providing the best reinforcement effect. 2) The increase in unconfined compressive strength of solidified lightweight soil ranged from 10.2% to 23.4% under different fiber dosages and lengths. When the fiber length exceeded 20 mm, the increase in strength gradually stabilized. With the increase of fiber dosage, the strength showed a trend of increasing first and then decreasing. 3) The 7d density-strength ratio of fiber-reinforced dredged solidified lightweight soil reached 100.49 kPa/(g·cm-3), representing increases of approximately 56.1%, 33.6%, 38.5%, and 28.0% compared to ordinary subgrade soil, conventional solidified soil, fiber-modified cement soil, and EPS-particle lightweight soil, respectively. The research findings can provide theoretical foundation for ultra-soft soil treatment in activities such as coastal tidal flat development, river dredging, and road subgrade renovation and expansion.
Abstract: To address the technical challenge associated with the inability to utilize dredged sediments from existing rivers and lakes, this study focused on dredged ultra-soft soil from coastal areas. Taking into account various factors such as soil moisture content, dosage of curing agent and foaming agents, as well as fiber type, dosage, and size, researc...
Show More
-
Research Article
The Methodological Foundation of Comparative Philosophy
Hisaki Hashi*
Issue:
Volume 14, Issue 4, August 2026
Pages:
146-152
Received:
20 June 2026
Accepted:
6 July 2026
Published:
11 August 2026
Abstract: In the context of a globalized world with its crossing dimensions, the philosophy that bridges cultures is known by various names: intercultural and transcultural philosophy, comparative philosophy, global philosophy, international philosophy, and so on. This article focuses specifically on comparative philosophy: chapter 1. Chapter 2: As Ch. A. Moore in the US in the middle of the 20th century represented, Comparative reflection accompanies every step of philosophy. Yet, in the past, comparative thinking often amounted to only a selective listing of similarities and differences, with further steps in dialectical confrontation frequently lacking. In what respects did these similarities or differences between the two thinkers and their intellectual horizons arise? Is there another aspect to their integration? This article presents the methodological construction beginning with the example of Plato and Laozi. Chapter 3: The discourse explains the methodological framework for constructing comparative philosophy in general schemes. Clarifying its methodology and originality, the discourse concentrates on the dynamics from the initial stage through dynamic development to the highest stadium: the dialectical sublation and integration of both contradictions in acknowledgment of a further problem. However, it does not remain static on Parnassus. With a “beginner’s mind,” it refreshes its content and continues to develop its dialectics systematically, communicating and integrating the human mind deeply and creatively. Chapter 4: The comparative approach is not limited to intercultural and transcultural contexts; it is also currently being applied to other areas, including interdisciplinary philosophy, which will be discussed further in light of the methodology of the Chap. 3. The discourse concludes with a concrete interim assessment in Chapter 5.
Abstract: In the context of a globalized world with its crossing dimensions, the philosophy that bridges cultures is known by various names: intercultural and transcultural philosophy, comparative philosophy, global philosophy, international philosophy, and so on. This article focuses specifically on comparative philosophy: chapter 1. Chapter 2: As Ch. A. Mo...
Show More
-
Research Article
A Social Network Analysis of Public Space Activities in Lingnan Villages: The Case of Xiaozhou Village
Wu Shuozhen*
Issue:
Volume 14, Issue 4, August 2026
Pages:
153-160
Received:
11 June 2026
Accepted:
14 July 2026
Published:
11 August 2026
Abstract: With rapid urbanization and the continuing process of urban–rural integration, traditional villages in the Lingnan region are increasingly confronted with fragmented public spaces, declining spatial efficiency, and an imbalance between the daily needs of residents and the experiential demands of tourists. Taking Xiaozhou Village, a representative Lingnan water-town village in Guangzhou, as a case study, this paper applies social network analysis to examine the relationships between public spaces and public activities, as well as the differences in spatial use among different activity groups. Based on field investigation, questionnaire data, interviews, and spatial observation, three types of networks are constructed: the public space network, the resident activity network, and the tourist activity network. Through the comparison of network structure, node selection, route preference, and spatial use characteristics, the study reveals that the planned public space system and actual public activity patterns are not fully matched. The findings indicate that residents tend to rely more on daily-life, religious, and service-oriented spaces, while tourists show stronger dependence on accessible routes and sightseeing-related nodes. In response to the problems of weak connectivity, insufficient integration, and uneven spatial vitality, this paper proposes optimization strategies from the perspectives of network association, spatial integration, and continuity of experience. The study aims to support the shared use of public spaces by residents and tourists, and to provide theoretical and methodological references for the renewal and cultural preservation of Lingnan water-town villages.
Abstract: With rapid urbanization and the continuing process of urban–rural integration, traditional villages in the Lingnan region are increasingly confronted with fragmented public spaces, declining spatial efficiency, and an imbalance between the daily needs of residents and the experiential demands of tourists. Taking Xiaozhou Village, a representative L...
Show More
-
Research Article
Experimental Investigation and Taguchi Optimization of Rubber-Plastic Sandcrete Blocks Under Marine Exposure
Ibrahim Abdulrazaq Olayinka*,
Doris Oyebanjo,
John Wasiu,
Sule Joseph
Issue:
Volume 14, Issue 4, August 2026
Pages:
161-176
Received:
21 April 2026
Accepted:
22 June 2026
Published:
11 August 2026
Abstract: The global consciousness towards advancement in eco-friendly constructions has engineered the discovery of alternative and sustainable use for waste materials. This study assessed the performance of rubber-plastic solid sandcrete blocks in marine water environments to address the dual challenges of environmental pollution from waste materials and building material durability in coastal regions. The research employed a Taguchi design of experiments to optimize the percentage composition of sand, rubber, and plastic, examining physical properties, water absorption rates, and compressive strength under marine conditions. Results showed that incorporating 20% plastic and 20% rubber significantly improved water resistance, achieving a water absorption rate of 7.68% compared to conventional blocks. However, compressive strength decreased with increasing plastic-rubber content, with the control mix achieving 230kN at 14 days versus 42.5kN for the 20% replacement mix. Pearson correlation analysis revealed a strong negative correlation (-0.981) between plastic content and compressive strength. The optimal mix composition was determined as 7.5% plastic and 7.5% rubber replacement. While these composite blocks showed reduced structural capacity, their superior water resistance makes them suitable for non-structural applications in marine environments, offering an eco-friendly solution for waste management and sustainable construction.
Abstract: The global consciousness towards advancement in eco-friendly constructions has engineered the discovery of alternative and sustainable use for waste materials. This study assessed the performance of rubber-plastic solid sandcrete blocks in marine water environments to address the dual challenges of environmental pollution from waste materials and b...
Show More
-
Research Article
Measuring Residential Well-being and Its Spatial Differentiation at the Street Scale in Hangzhou Based on Multi-source Data
Zhu Penghui*
Issue:
Volume 14, Issue 4, August 2026
Pages:
177-185
Received:
10 June 2026
Accepted:
14 July 2026
Published:
13 August 2026
DOI:
10.11648/j.sr.20261404.16
Downloads:
Views:
Abstract: Spatial differentiation of residential well-being is an important dimension for measuring the balance of urban internal development. Existing studies have largely focused on macro-level comparisons between cities, with relatively insufficient attention to fine-scale measurement and spatial patterns at the street level within cities. Taking 86 sub-districts in the main urban area of Hangzhou as the study area, this paper adopts an “economy-society-ecology” three-dimensional analytical framework and integrates multi-source spatiotemporal big data including POI, mobile signaling, road networks, air quality monitoring, and Weibo check‑in texts. Using the entropy weight method and sentiment analysis, the study measures the level of residential well-being at the street scale and reveals its spatial differentiation patterns. The results show that metro coverage, fire station density, and financial service density are core indicators that differentiate street‑level well‑being. Residential well-being exhibits a significant core-periphery gradient decreasing pattern, with high‑scoring sub‑districts highly concentrated in the city center and low scores widely distributed in peripheral areas. The ecological livability dimension presents an inverse pattern of “low in the core, high in the periphery”, revealing a dilemma of “ecology without services”. The social inclusiveness dimension is highly concentrated in the core area, while the economic sustainability dimension contributes the least. A significant positive correlation is found between objective and subjective well‑being, validating the measurement results. This study provides empirical evidence for refined diagnosis and targeted governance of well‑being within megacities.
Abstract: Spatial differentiation of residential well-being is an important dimension for measuring the balance of urban internal development. Existing studies have largely focused on macro-level comparisons between cities, with relatively insufficient attention to fine-scale measurement and spatial patterns at the street level within cities. Taking 86 sub-d...
Show More
-
Research Article
Artificial Intelligence Enabled Reform of Vocational Competency Teaching in Toxicology Under Healthcare Reform
Wei Ke,
Dai Qian,
Zheng Zhi*
Issue:
Volume 14, Issue 4, August 2026
Pages:
186-191
Received:
31 May 2026
Accepted:
14 July 2026
Published:
13 August 2026
DOI:
10.11648/j.sr.20261404.17
Downloads:
Views:
Abstract: Objective: This study aimed to investigate the application effectiveness of artificial intelligence (AI)-supported teaching reform in toxicology courses and to provide practical insights for cultivating public health professionals under the background of emerging medical education transformation. Methods: A “teacher–AI–student” collaborative teaching framework was developed and implemented in toxicology education. The AI-assisted teaching system integrated a toxicology knowledge graph, virtual simulation laboratory, and toxicity prediction learning modules to support safety evaluation education. A total of 101 undergraduate students were enrolled in this teaching practice and were divided into a traditional teaching group (n=50) and an AI-assisted teaching group (n=51). Both groups received a 16-hour toxicology course. Learning interest, knowledge comprehension, experimental engagement, and overall course satisfaction were evaluated through questionnaire surveys, and the differences between the two groups were statistically analyzed.. Results: Compared with the traditional teaching group, students receiving AI-assisted instruction showed significantly improved performance in toxicological knowledge understanding, experimental participation, and course satisfaction (P<0.05). The integration of AI-based knowledge mapping and virtual reality (VR) simulation experiments enhanced students’ comprehension of complex toxicological mechanisms and safety evaluation procedures. Furthermore, the interactive learning environment promoted students’ autonomous learning behaviors and practical application abilities. Conclusion: AI-supported toxicology teaching provides an effective approach for addressing the limitations of conventional teaching methods, including the separation between theoretical knowledge and practical training and the restriction of experimental resources. The proposed teaching model may facilitate the digital transformation of medical education and contribute to the development of high-quality public health professionals with stronger analytical and practical competencies.
Abstract: Objective: This study aimed to investigate the application effectiveness of artificial intelligence (AI)-supported teaching reform in toxicology courses and to provide practical insights for cultivating public health professionals under the background of emerging medical education transformation. Methods: A “teacher–AI–student” collaborative teachi...
Show More
-
Research Article
Current Status and Development Analysis of Head and Neck Tumor Diagnosis and Treatment in Secondary and Above-Level Medical Institutions in Southern China
Chen Jianghui,
Lin Qin*
Issue:
Volume 14, Issue 4, August 2026
Pages:
192-199
Received:
8 June 2026
Accepted:
9 July 2026
Published:
13 August 2026
DOI:
10.11648/j.sr.20261404.18
Downloads:
Views:
Abstract: Objective: To investigate the current status of head and neck tumor diagnosis and treatment in secondary and above medical institutions in southern China, providing reference for the allocation and planning of medical resources related to head and neck tumor care. Methods: A self-designed questionnaire was administered online to secondary and above medical institutions in southern China from September 2025 to March 2026. The questionnaire covered six dimensions: hospital basic characteristics, department setup and human resource allocation, diagnostic and therapeutic capabilities and hardware equipment configuration, treatment modalities and clinical practice, diagnostic and treatment processes and patient management, as well as research capacity and academic output. Results: The study included 106 secondary and above medical institutions across 11 provinces/municipalities in southern China. The results indicated that the overall level of head and neck tumor diagnosis and treatment in the region ranks among the highest nationwide, but significant regional disparities were observed, including insufficient standardization of multidisciplinary team (MDT) collaboration, distinct stratification in research capabilities, and room for improvement in patient management systems. Conclusion: In response to these challenges, recommendations were proposed, including establishing regional diagnostic and treatment alliances, strengthening MDT standardization, and enhancing support systems for research personnel, to improve the homogeneity of head and neck tumor care in southern China.
Abstract: Objective: To investigate the current status of head and neck tumor diagnosis and treatment in secondary and above medical institutions in southern China, providing reference for the allocation and planning of medical resources related to head and neck tumor care. Methods: A self-designed questionnaire was administered online to secondary and above...
Show More
-
Research Article
A Case Report on the Treatment of Extensive Burn Complicated with Stanford Type B Aortic Dissection and Pulmonary Embolism
Mairepati Dilixiati,
Cao Yu,
Zheng Gang*
Issue:
Volume 14, Issue 4, August 2026
Pages:
200-209
Received:
10 June 2026
Accepted:
14 July 2026
Published:
13 August 2026
DOI:
10.11648/j.sr.20261404.19
Downloads:
Views:
Abstract: Objective: To explore the diagnostic and therapeutic strategies for a rare critical case of extensive burns complicated by Stanford Type B aortic dissection and pulmonary artery embolism, analyzing the principles for resolving treatment conflicts and clinical outcomes. Methods: A retrospective analysis was conducted on the clinical data of a 55-year-old male patient admitted in September 2024 with extensive burns and vascular complications. The patient presented with 71% total body surface area (TBSA) burns, comprising 55% third-degree and 16% second-degree burns, mainly complicated by Stanford Type B aortic dissection (chronic), distal right pulmonary artery trunk and branch embolism, and near-complete thrombosis of the left upper limb. Clinical characteristics, laboratory test dynamics, surgical approach, and anticoagulation strategy were analyzed. Results: Enhanced CT angiography confirmed the diagnosis upon admission. Addressing the treatment conflict between aortic dissection and pulmonary embolism, a strategy of “staged surgery + close monitoring + cautious low-molecular-weight heparin anticoagulation” was adopted. Specific measures: (1) Wound management: Underwent 6 surgical procedures including debridement and eschar removal, heterograft skin grafting, Meek grafting, and autograft skin grafting to progressively close the wound. (2) Aortic dissection management: Control blood pressure (target systolic 100–130 mmHg; 1 mmHg = 0.133 kPa) and heart rate (target 60–80 bpm) to prevent dissection expansion. (3) Pulmonary embolism and thrombus management: Sodium low molecular weight heparin 4250 IU subcutaneously every 12 hours, with dynamic monitoring of D-dimer and coagulation function. During treatment, D-dimer decreased from 8.45 μg/L at admission to 2.93 μg/L, and C-reactive protein decreased from 246.96 mg/L to 133.62 mg/L. At 2.5 months postoperatively, wounds on the right upper limb and both lower limbs were largely closed, with good survival of chest and back skin grafts. The patient's condition was stable. Conclusion: Large-area burns complicated by Stanford Type B aortic dissection and pulmonary embolism present a critically ill condition with prominent treatment dilemmas. Under the premise of confirming the dissection as chronic with a relatively stable false lumen, cautious anticoagulation with low molecular weight heparin combined with dynamic monitoring and staged surgical strategies can control thrombus risk while avoiding aortic dissection rupture. This case provides preliminary experience for managing such complex cases, though further clinical research is needed for validation.
Abstract: Objective: To explore the diagnostic and therapeutic strategies for a rare critical case of extensive burns complicated by Stanford Type B aortic dissection and pulmonary artery embolism, analyzing the principles for resolving treatment conflicts and clinical outcomes. Methods: A retrospective analysis was conducted on the clinical data of a 55-yea...
Show More
-
Research Article
Parametric Analysis on the Hysteretic Behavior of an Energy Dissipation Damper
Tianjing Zhang,
Benben Li*,
Yu Ling
Issue:
Volume 14, Issue 4, August 2026
Pages:
210-217
Received:
4 June 2026
Accepted:
14 July 2026
Published:
13 August 2026
DOI:
10.11648/j.sr.20261404.20
Downloads:
Views:
Abstract: To improve the hysteretic performance of prefabricated beam-column connections, a parametric analysis is conducted on an energy-dissipating damper connection composed of shear rods and a pin shaft. Based on the finite element method, the effects of the gusset plate spacing, the diameter of the energy-dissipating rods, and the distance from the rods to the pin shaft center on the seismic performance of the connection are investigated. The results indicate that increasing the rod diameter significantly enhances both the load-bearing capacity and ductility. When the rod diameter is increased from 18 mm to 22 mm, the peak load-bearing capacity increases by 18.5%, and the ductility coefficient improves by 27.7%. Increasing the gusset plate spacing enhances the energy dissipation capacity, but the peak load-bearing capacity decreases by up to 39.7%. Increasing the distance from the rods to the pin shaft center simultaneously improves the load-bearing capacity and stiffness; when this distance is increased from 100 mm to 120 mm, the load-bearing capacity increases by 10.0%. It is recommended to prioritize the use of 22 mm diameter rods and a center distance of 120 mm, while the gusset plate spacing should be selected between 5 mm and 15 mm according to the seismic fortification intensity. The optimized damper can effectively improve the seismic performance of the connection.
Abstract: To improve the hysteretic performance of prefabricated beam-column connections, a parametric analysis is conducted on an energy-dissipating damper connection composed of shear rods and a pin shaft. Based on the finite element method, the effects of the gusset plate spacing, the diameter of the energy-dissipating rods, and the distance from the rods...
Show More
-
Research Article
Rupture Characteristics and Lhatse County Building Damage Features of the Dingri 6.8 Magnitude Earthquake
Wang Ji*,
Song Xueping,
Liu Peixuan,
Gao Zhanwu,
Liu Zhicheng,
Xu Wei,
Cai Xiaoguang
Issue:
Volume 14, Issue 4, August 2026
Pages:
218-225
Received:
5 June 2026
Accepted:
14 July 2026
Published:
13 August 2026
DOI:
10.11648/j.sr.20261404.21
Downloads:
Views:
Abstract: On January 7, 2025, a magnitude 6.8 earthquake occurred in Tingri County, Shigatse City, Tibet Autonomous Region. The Dengmo Cuo fault (one of the north-south rift fault systems on the Qinghai-Tibet Plateau, a main fault in the Shenzha-Dingjie fault zone, with a trace near NS, a westward inclination and a near vertical dip angle) formed a rupture zone with a vertical dislocation with a height of nearly 3m and a cumulative width of about 300m, which caused heavy casualties and property losses to the earthquake area. The observation of Dengmo Cuo fault shows that the fault fault differs greatly in different site conditions, which reflects the influence of site conditions on the fault fault. Houses and buildings in Quxia Town, Lazi County, which is 66km from the epicenter, also suffered serious damage, with the intensity reaching VII degree. This paper investigates the earthquake damage of hospitals, schools and houses in Quxia Town, Lazi County, and mainly analyzes the reasons for the earthquake damage of houses. It is concluded that the main reason is that Lazi County is located in the extension direction of Dengmo Cuo fault. The strong fault misalignment causes the area with earthquake intensity above VII to expand by more than 30% compared with the earthquake of the same magnitude. At the same time, the seismic liquefaction of the superimposed site and the insufficient seismic capacity of houses and buildings have caused the loss of this earthquake disaster to be more serious than that of the earthquake of the same magnitude. Lazi County is located in the northward extension direction of Dengmo Cuo fault, and it is located in the place where the Shenzha-Dingjie fault zone is distributed. It is likely that the dislocation of hidden faults has occurred, but it does not extend to the surface. This study can provide reference for urban planning and seismic fortification near active fault zones in Tibet.
Abstract: On January 7, 2025, a magnitude 6.8 earthquake occurred in Tingri County, Shigatse City, Tibet Autonomous Region. The Dengmo Cuo fault (one of the north-south rift fault systems on the Qinghai-Tibet Plateau, a main fault in the Shenzha-Dingjie fault zone, with a trace near NS, a westward inclination and a near vertical dip angle) formed a rupture z...
Show More
-
Research Article
The Analysis of The Heat Release Rate Determination of a Subway Train
Issue:
Volume 14, Issue 4, August 2026
Pages:
226-231
Received:
15 June 2026
Accepted:
14 July 2026
Published:
13 August 2026
DOI:
10.11648/j.sr.20261404.22
Downloads:
Views:
Abstract: Accurately determining the heat release rate (HRR) of metro trains serves as a core prerequisite for investigating metro tunnel fire behaviors and carrying out fire safety design of urban rail transit. To clarify the reasonable range of HRR for metro tunnel fire research, this paper selects a typical Type-B metro train as the research subject. After comprehensively sorting out and counting all combustible materials inside the middle carriage as well as their respective mass parameters, two research methods including Fire Dynamics Simulator (FDS) numerical simulation and HRR statistical calculation are adopted to analyze the thermal output characteristics of a fire originating in the middle carriage of a single train. A refined geometric model matching the actual carriage structure is built with practical boundary conditions and fire working conditions to simulate the complete fire evolution from initial ignition to full combustion. The calculation results indicate that the peak heat release rate of the Type-B metro middle carriage reaches 17.6 MW. The research conclusions can offer reliable theoretical references and basic data for flame retardant design of metro vehicles, ventilation and smoke exhaust system design of tunnels, as well as the establishment of tunnel fire emergency disposal schemes.
Abstract: Accurately determining the heat release rate (HRR) of metro trains serves as a core prerequisite for investigating metro tunnel fire behaviors and carrying out fire safety design of urban rail transit. To clarify the reasonable range of HRR for metro tunnel fire research, this paper selects a typical Type-B metro train as the research subject. Afte...
Show More
-
Research Article
Research on Structural Safety Assessment of High-Speed Railway Tunnels Based on Partial Least Squares Regression
Issue:
Volume 14, Issue 4, August 2026
Pages:
232-237
Received:
30 June 2026
Accepted:
24 July 2026
Published:
13 August 2026
DOI:
10.11648/j.sr.20261404.23
Downloads:
Views:
Abstract: Aiming at the problems of multicollinearity among multi-source monitoring indicators, insufficient modeling accuracy with small samples and strong subjectivity of traditional evaluation methods during the long-term operation of high-speed railway tunnels, a quantitative evaluation method for structural safety of high-speed railway tunnels based on partial least squares (PLS) regression is proposed. Six core monitoring indicators, including settlement displacement and horizontal displacement of tunnel lining and track, crack width and water seepage, are selected to establish the evaluation system, and the structural degradation index DI is defined to characterize the degradation degree of tunnel lining. Combining PLS with the variable importance in projection (VIP) criterion, a four-step modeling framework consisting of standardization, principal component extraction, coefficient solution and degradation index prediction is constructed. Component decomposition is adopted to reduce redundant correlation between indicators and improve the generalization ability of the model under small sample conditions. A high-speed railway tunnel in Southwest China is taken as a case for verification. The results show that the PLS model can effectively integrate multi-source monitoring data, quantify the degradation level of tunnel lining, accurately identify sections with severe diseases, and dynamically reflect the long-term evolution trend of structures. It provides quantitative technical support for structural health assessment, disease early warning and monitoring system optimization of mountain high-speed railway tunnels during operation.
Abstract: Aiming at the problems of multicollinearity among multi-source monitoring indicators, insufficient modeling accuracy with small samples and strong subjectivity of traditional evaluation methods during the long-term operation of high-speed railway tunnels, a quantitative evaluation method for structural safety of high-speed railway tunnels based on ...
Show More
-
Research Article
Research on Dynamic Cost Prediction of Power Grid Technical Renovation Projects Based on Improved Transformer
Issue:
Volume 14, Issue 4, August 2026
Pages:
238-243
Received:
28 June 2026
Accepted:
24 July 2026
Published:
13 August 2026
DOI:
10.11648/j.sr.20261404.24
Downloads:
Views:
Abstract: Cost prediction for power grid technical renovation projects serves as a critical component of investment decision-making and optimal resource allocation for power enterprises, and its results directly affect investment control, budget formulation and risk assessment. To address the limitations of conventional methods, which struggle to capture the dynamic evolution of costs throughout the project life cycle and overlook the differences in cost characteristics across various construction phases, this paper proposes a dynamic cost prediction model based on the Gated Multi-Stage Transformer (GMST). The model divides technical renovation projects into three phases: planning, implementation and settlement. Separate Transformer encoders are established to extract temporal features of each phase, and a learnable gating network is introduced to adaptively aggregate multi-stage prediction information and realize dynamic weighting of features from different phases. Experiments on datasets of 1,876 real-world projects demonstrate that the GMST achieves an MAE of 123,700 CNY, an RMSE of 185,400 CNY and a MAPE of 5.82%, outperforming vanilla Transformer, LSTM and XGBoost by a notable margin. Ablation experiments verify the synergistic effect of multi-stage encoding and gated fusion. Phase-wise accuracy analysis reveals that the prediction error gradually converges from 9.21% to 5.82% as the project proceeds, indicating that the proposed model is suitable for the progressive cost estimation scenario of technical renovation projects..
Abstract: Cost prediction for power grid technical renovation projects serves as a critical component of investment decision-making and optimal resource allocation for power enterprises, and its results directly affect investment control, budget formulation and risk assessment. To address the limitations of conventional methods, which struggle to capture the...
Show More
