Journal of building engineering最新文献

{"title":"Experimental study on the heat shielding performance of multilayer barriers incorporating PCM and aerogel","authors":"Xianfei Liu,&nbsp;Panke Su,&nbsp;Hui Zhang,&nbsp;Fang Wang,&nbsp;Yubo Meng,&nbsp;Mengjie Li,&nbsp;Hui Wang","doi":"10.1016/j.jobe.2025.113184","DOIUrl":"10.1016/j.jobe.2025.113184","url":null,"abstract":"<div><div>This study presents an innovative multilayer barrier design that integrates phase change material (PCM) and aerogel, aimed at enhancing the heat shielding performance of the cabin power station. Several experiments are conducted to examine the effects of combination mode, filling thickness ratio, radiation intensity, radiation distance, PCM physical parameter, and thin film reflectance on the heat shielding performance of the cabin generator. The findings suggest that the optimal heat shielding performance is achieved through the combination of PCM positioned in the upper layer and aerogel situated in the lower layer. The optimal filling thickness ratio for the PCM and the aerogel in the multilayer barrier is 3:2 over 1 h. An increase in radiation intensity will result in a reduction of the effective thermal shielding duration, with the rapid temperature rise on the upper surface occurring at 39 min as the radiation intensity is 612 kW/m³. The phase change temperature of PCMs plays a crucial role in determining their thermal performance, especially during the phase transition process. Furthermore, the heat shielding performance is significantly enhanced by affixing a silver film to the inner surface of multilayer barriers. This research contributes to the enhancement of heat shielding efficacy in cabin power stations and demonstrates potential applications in the domains of envelope insulation and energy conservation in buildings.</div></div>","PeriodicalId":15064,"journal":{"name":"Journal of building engineering","volume":"111 ","pages":"Article 113184"},"PeriodicalIF":6.7,"publicationDate":"2025-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144281133","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Daylighting, Occupant Behavior, and Cultural Context in Algerian Collective Housing: A Post-Occupancy Evaluation in Annaba.","authors":"Salma Makhlouf, Mohammed Cheraitia, Djamel Alkama","doi":"10.1016/j.jobe.2025.113162","DOIUrl":"https://doi.org/10.1016/j.jobe.2025.113162","url":null,"abstract":"Reducing energy consumption while ensuring visual comfort is essential for achieving energy-efficient buildings. In this context, understanding occupant behavior (OB) is increasingly recognized as critical. In Algeria, despite its unique climatic and cultural conditions, limited research has examined how occupants interact with natural light in inhabited spaces. This study fills this gap through a post-occupancy evaluation (POE) of eight multi-family residential buildings in the Wed El-Fourcha neighborhood of Annaba. The primary objective is to examine how occupants interact with natural light and identify behavioral patterns that influence its use. A mixed-methods approach was employed: subjective data were collected via a questionnaire and analyzed using Sphinx Lexica, while objective data were obtained through in-situ lux meter measurements. The results reveal a strong preference for areas with low natural light exposure, leading to significant reliance on artificial lighting. This suggests a disconnect between available natural light and actual household activities. Furthermore, OB reflects a nuanced balance between comfort, privacy, autonomy, and social norms, indicating that the relationship with light transcends mere functionality and extends to symbolic and psychological dimensions of spatial appropriation<ce:bold>.</ce:bold> These findings highlight the need to incorporate actual OB into architectural design processes. This study emphasizes the importance of integrating user behavior into the design of energy-efficient, occupant-centered residential environments. The novelty of this research lies in its combined analysis of cultural, behavioral, and architectural dimensions of lighting use, offering new insights into occupant-light interaction, particularly within the context of Algerian housing, which has been underexplored in existing literature.","PeriodicalId":15064,"journal":{"name":"Journal of building engineering","volume":"51 1","pages":""},"PeriodicalIF":6.4,"publicationDate":"2025-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144305026","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Structural identification of the skybridge lifting process for high-rise twin-tower connected structures","authors":"Yun Zhou ,&nbsp;Peng Ye ,&nbsp;Jin-Nan Hu ,&nbsp;Xiao-Feng Zhou ,&nbsp;Xian-Ming Luo ,&nbsp;Guan-Wang Hao ,&nbsp;Wen-Jie Zhang","doi":"10.1016/j.jobe.2025.113191","DOIUrl":"10.1016/j.jobe.2025.113191","url":null,"abstract":"<div><div>To ensure the safety and stability of the high-rise twin-tower connected structure during the integral lifting construction process of the multi-story arched skybridge, this study proposes an early warning framework based on the structural identification (St-Id) theory that combines intelligent algorithms with the finite element (FE) method. Through continuous real-time monitoring of the strain of the skybridge and tower during the lifting process of the skybridge, combined with the environmental vibration tests of the tower, the established FE models of the skybridge and tower are updated, thus realizing the early warning of the lifting process of the multi-story skybridge. For the skybridge, firstly, the structural strain response and temperature data were obtained by instrumenting strain gauges on the skybridge and the towers. To obtain the true strains of the structure, this paper proposed a novel back-propagation neural network optimized by the dung beetle optimizer (DBO-BPNN) to eliminate the effect of temperature, in which the DBO was used to obtain the optimal hyperparameters of the BPNN to avoid the problem that the optimal hyperparameters could not be obtained by the traditional approach (manual empirical selection). Subsequently, the DBO was used to iteratively calibrate the established FE model of the skybridge using the true strain at the time of the skybridge lifting to achieve the accurate prediction and early warning of the subsequent construction process of the skybridge with a prediction error of 10.03 %, proving that the model was able to accurately reflect the real physical state of the structure. For the tower, firstly, the FE model of the super high-rise building was established to analyze the internal force of the tower during the lifting process of the skybridge in combination with the strain monitoring results. Additionally, the modal parameters of the tower before and after the installation of the skybridge were obtained through ambient vibration tests and the effect of lateral support (skybridge) on the tower was analyzed. Then, the calibration and optimization of the FE model of the tower were achieved by considering the influence of the infill wall, and the error of the calibrated FE model was below 6.32 %, thus achieving the safety warning of the tower during the lifting process of the skybridge.</div></div>","PeriodicalId":15064,"journal":{"name":"Journal of building engineering","volume":"111 ","pages":"Article 113191"},"PeriodicalIF":6.7,"publicationDate":"2025-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144289202","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Seismic behavior of steel beam-stiffened CFDST column joints","authors":"Xueyuan Yan,&nbsp;Jitao Yu,&nbsp;Shen Shi,&nbsp;Xinying Zheng,&nbsp;Jian Liu,&nbsp;Wenhui Chen","doi":"10.1016/j.jobe.2025.113180","DOIUrl":"10.1016/j.jobe.2025.113180","url":null,"abstract":"<div><div>Concrete-filled double-skin steel tube (CFDST) columns are a composite structure with broad application prospects. However, the seismic behavior of their beam-column joints has not been fully investigated. This paper presents a new type of steel beam-stiffened CFDST column joint and evaluates its seismic performance through quasi-static tests. The test involves three types of joints: steel beam-traditional CFDST column joint, steel beam-nonpenetrating stiffened CFDST column joint, and steel beam-penetrating stiffened CFDST column joint. The results indicate that the addition of stiffening ribs significantly enhances the bearing capacity, ductility, energy dissipation capability, and stiffness of the joint. Based on the test results, a finite element model is established and its accuracy is validated. Further parametric studies were conducted using the finite element model. The study finds that the yield strength of the outer steel tube and stiffening ribs, axial compression ratio, and hollow ratio have a notable effect on the seismic behavior of the joints. In contrast, the steel beam-penetrating stiffened CFDST column joint shows more stable performance under various influencing factors.</div></div>","PeriodicalId":15064,"journal":{"name":"Journal of building engineering","volume":"111 ","pages":"Article 113180"},"PeriodicalIF":6.7,"publicationDate":"2025-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144291672","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A Quantitative stability evaluation method for high fluidity concrete based on slump flow test results","authors":"Youjeong Lee ,&nbsp;Jong Kim ,&nbsp;Min-Cheol Han ,&nbsp;Cheon-Goo Han ,&nbsp;Dongyeop Han","doi":"10.1016/j.jobe.2025.113167","DOIUrl":"10.1016/j.jobe.2025.113167","url":null,"abstract":"<div><div>This research introduces a quantitative method for evaluating stability. ASTM <span><span>C1611</span><svg><path></path></svg></span> suggested a visual stability index (VSI) with a simple stability evaluation method. Although this method has four phases of stability conditions, it is still difficult to define the stability quantitatively. This research presents a new evaluation index for segregation (EIS) as a quantitative evaluation method of high-fluidity concrete stability. Since the proposed method is calculated based on the shape of the slump flow test results, the basic principle and field applicability are the same as VSI. A wide range of concrete fluidity conditions were tested using the authors’ EIS method to analyze and compare with VSI. The EIS method proved dependable during these tests. Using the proposed EIS method as a VSI reinforcing method, a more precise evaluation of high-fluidity stability was achieved for concrete mixtures.</div></div>","PeriodicalId":15064,"journal":{"name":"Journal of building engineering","volume":"111 ","pages":"Article 113167"},"PeriodicalIF":6.7,"publicationDate":"2025-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144297673","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Investigation on shear behaviour of a swift-constructed demountable continuous shear connector for achieving construction circularity","authors":"Jiachen GUO, Peng CHEN, Tak-Ming C.H.A.N.","doi":"10.1016/j.jobe.2025.113200","DOIUrl":"https://doi.org/10.1016/j.jobe.2025.113200","url":null,"abstract":"To achieve carbon neutrality, the construction sector is encouraged to adopt the Design for Deconstruction and Reuse (DfDR) principle which enables the reuse of structural components. Steel-concrete composite beams are extensively used in practice. However, current demountable shear connectors between concrete slabs and steel beams always require increased construction time due to repeated installation procedures. This paper proposes a swift-constructed demountable continuous shear connector to improve the reusability of composite beams and to accelerate construction. The design, installation and load transfer mechanism of the connector are explicitly introduced. Shear tests and the corresponding finite element analysis were conducted to study the effects of different parameters on the shear behaviour of the connector. The findings indicate that increasing the number of shear keys and enlarging the connector section does not compromise the load transfer efficiency. The shear behaviour of the connector is unaffected by the installation tolerance. The current design equations were assessed and improved to accurately predict the shear strength of the continuous shear connector. To conclude, connectors with multiple shear keys are recommended to accelerate construction.","PeriodicalId":15064,"journal":{"name":"Journal of building engineering","volume":"11 1","pages":""},"PeriodicalIF":6.4,"publicationDate":"2025-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144304982","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Influence of the side wall of RHS columns on the behavior of welded connections with I-beam sections","authors":"Diego Luiz Costa e Souza, Matheus Miranda de Oliveira, Arlene Maria Cunha Sarmanho, Vinícius Nicchio Alves","doi":"10.1016/j.jobe.2025.113189","DOIUrl":"https://doi.org/10.1016/j.jobe.2025.113189","url":null,"abstract":"The assessment of moment resistance, stiffness, and failure modes of welded connections between I-beams and rectangular hollow section (RHS) columns is crucial to ensure the structural integrity and performance of steel structures. However, existing design codes and normative equations for estimating the moment resistance do not consider all geometric parameters that influence the behavior of the connections, such as the contribution of the side wall of the column. In this context, the present study aims to assess the influence of the selected parameter on the structural behavior and moment resistance of uniplanar T-type welded connections. To achieve this, an investigation was developed through finite element (FE) simulations, using a numerical model validated by experimental results. The analysis considered variations in the thickness (<ce:italic>t</ce:italic><ce:inf loc=\"post\"><ce:italic>0</ce:italic></ce:inf>) and height (<ce:italic>h</ce:italic><ce:inf loc=\"post\"><ce:italic>0</ce:italic></ce:inf>) of the hollow section side wall, as well as the thickness (<ce:italic>t</ce:italic><ce:inf loc=\"post\"><ce:italic>1</ce:italic></ce:inf>), width (<ce:italic>b</ce:italic><ce:inf loc=\"post\"><ce:italic>1</ce:italic></ce:inf>), and height (<ce:italic>h</ce:italic><ce:inf loc=\"post\"><ce:italic>1</ce:italic></ce:inf>) of the beam, resulting in a total of 315 models. Furthermore, the predominant failure mode was identified, and the numerical results were compared with the analytical formulations presented in the design codes. The two failure modes observed were column frontal face plastification (<ce:italic>β</ce:italic> ≤ 0.85) and column side wall yielding (<ce:italic>β</ce:italic> = 1.0). Design codes such as EN 1993-1-8 and ISO 14346:2013 provide equations for determining the resistance capacity of connections when <ce:italic>β</ce:italic> ≤ 0.85 and <ce:italic>β</ce:italic> = 1.0, and suggest interpolation for results when 0.85 &lt;<ce:italic>β</ce:italic> &lt; 1.0. Comparing the analytical formulations with the numerical results, it was observed that the design equations tend to present a conservative estimate for the moment resistance of the connections. The results indicate that higher values of <ce:math altimg=\"si1.svg\"></ce:math> and ratios between the beam width and column width (<ce:italic>β</ce:italic>=<ce:italic>b</ce:italic><ce:inf loc=\"post\"><ce:italic>1</ce:italic></ce:inf><ce:italic>/b</ce:italic><ce:inf loc=\"post\"><ce:italic>0</ce:italic></ce:inf>) lead to a greater influence of the column side wall on the connection behavior, resulting in higher moment resistance. Based on these observations, an equation was proposed that takes into account the influence of the side walls if the column on the moment resistance of the connection, particularly for higher values of <ce:italic>β</ce:italic>, leading to more consistent results.","PeriodicalId":15064,"journal":{"name":"Journal of building engineering","volume":"7 1","pages":""},"PeriodicalIF":6.4,"publicationDate":"2025-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144304977","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Improved YOLOv8 framework for efficient solar panel defect detection","authors":"Amreen Batool ,&nbsp;Yong-Won Kim ,&nbsp;Yung-Cheol Byun","doi":"10.1016/j.jobe.2025.113031","DOIUrl":"10.1016/j.jobe.2025.113031","url":null,"abstract":"<div><div>The photovoltaic (PV) industry plays a vital role in the renewable energy sector, making efficient fault detection essential to ensure optimal performance and sustainability. While the existing deep learning models have significantly improved defect detection accuracy, their large size and limited feature extraction capabilities reduce detection efficiency and complicate adaptation to varying defect conditions. Therefore, this study proposed the Improved YOLOv8-SEB model, which integrates a Squeeze-and-Excitation Block (SEB) into the YOLOv8 architecture to enhance defect detection in photovoltaic (PV) panels. The SEB dynamically reweights feature maps, allowing the model to emphasize critical features relevant to the task and improve the detection of complex and subtle defects such as “Black Border” and “Broken”. Experimental evaluations using a PV-Multi-Defect dataset show that YOLOv8-SEB achieves a 2.6% increase in mean average precision at IoU 0.5 ([email protected]) and a 3.4% gain in [email protected]:0.95 compared to the baseline YOLOv8, while reducing DFL Loss to 0.16. The improved model demonstrates enhanced precision and recall, with fewer false positives and negatives. Although the integration of SEB introduces additional computational complexity, YOLOv8-SEB remains suitable for real-time deployment on edge devices through potential optimizations. This research offers a scalable and efficient approach for solar panel defect detection, facilitating cost-effective maintenance and supporting the operational stability of PV systems. The proposed model contributes to the advancement of intelligent inspection technologies, helping to extend the lifespan of solar panels and promote the sustainability of renewable energy infrastructures.</div></div>","PeriodicalId":15064,"journal":{"name":"Journal of building engineering","volume":"111 ","pages":"Article 113031"},"PeriodicalIF":6.7,"publicationDate":"2025-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144297566","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Experimental study on flexural behavior of precast concrete beams in-span joined with UHPC","authors":"Zijun Xu ,&nbsp;Wei Zhou ,&nbsp;Guoyang Lu","doi":"10.1016/j.jobe.2025.113190","DOIUrl":"10.1016/j.jobe.2025.113190","url":null,"abstract":"<div><div>Efficient connection design is critical for the performance and applicability of precast concrete structures. This study proposes a novel in-span connection strategy using Ultra High Performance Concrete (UHPC) to assemble two standardized short precast concrete beams into a single unit, referred to as a Precast Beam Unit (PBU). This configuration relocates the joint from the beam ends to the mid-span, reducing local weakening and premature failure in high-stress regions while enhancing constructability. Static loading tests were conducted on five PBUs, with one cast-in-place beam serving as a control. The reinforcement ratio and the length of the UHPC corresponding to the diameter of the steel bar were employed as the main design parameters. The flexural behavior and failure mode of specimens were analyzed based on load displacement curves, crack propagation, and strain responses. Results showed that PBU-1 exhibited a 6.3 % higher ultimate flexural capacity than the cast-in-place beam. PBU-5, with a reinforcement ratio of 1.65 % demonstrated a 140.2 % higher ultimate bearing capacity compared to PBU-1 (0.64 % reinforcement ratio). PBUs also showed reduced deflection, narrower crack widths, and enhanced stiffness. The study proposed calculation methods for cracking analysis, short-term stiffness, and the normal section flexural capacity of PBU. Moreover, a finite element model developed in ABAQUS was employed to verify the damage situation and ultimate bearing capacity of the specimens, with good agreement with the experimental results. These findings confirm the safety and applicability of PBU and demonstrate its favorable connection performance.</div></div>","PeriodicalId":15064,"journal":{"name":"Journal of building engineering","volume":"111 ","pages":"Article 113190"},"PeriodicalIF":6.7,"publicationDate":"2025-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144304976","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Shear performance of brick masonry walls strengthened by deep structural repointing using FRP reinforcement","authors":"Xiaochao Sun ,&nbsp;Pianbao Shi ,&nbsp;Hong Zhu ,&nbsp;Zhiqiang Dong ,&nbsp;Baogang Mu ,&nbsp;Chee Kiong Soh","doi":"10.1016/j.jobe.2025.113187","DOIUrl":"10.1016/j.jobe.2025.113187","url":null,"abstract":"<div><div>Enhancing seismic safety of masonry structures while preserving historical authenticity requires specific retrofitting techniques. Bed-joint structural repointing has emerged as an attractive solution for heritage conservation. However, existing studies primarily focus on shallow embedment depths (<span><math><mrow><mo>≤</mo></mrow></math></span> 30 mm) with divergent conclusions. In order to optimize the strengthening effect while considering the construction feasibility, this study innovatively increased the embedment depth to 80 mm to examine the shear performance of brick masonry walls strengthened by deep structural repointing with FRP reinforcement. Through diagonal compression tests, crack patterns, failure modes, shear stress-strain curves and related mechanical parameters were analysed under three variables: FRP reinforcement type, frequency of grooves and amount of reinforcement per groove. Experimental results revealed the near-surface mounted (NSM) FRP reinforcement significantly improved the post-peak performance of the masonry walls. Compared to unreinforced specimens, the shear strength increased by 6 %–67 %, ultimate strain by 54 %–444 %, ductility by 75 %–361 %, and energy dissipation capacity by 39 %–1113 %. These values highlighted the efficacy of structural repointing in deformation capacity improvement. The material property of FRP reinforcement had a minimal effect on shear performance improvement, while the geometric parameter exerted a greater influence. Instead of merely increasing the frequency of grooves, enhancing the reinforcement amount per groove proved to be a more effective strategy. Additionally, deep structural repointing mitigated out-of-plane failure risk by reducing eccentricity effects. Based on the experimental findings, predictive formulas for the shear capacity of masonry walls reinforced with NSM FRP were proposed, providing a reliable design basis for the application of FRP materials in historical building rehabilitation.</div></div>","PeriodicalId":15064,"journal":{"name":"Journal of building engineering","volume":"111 ","pages":"Article 113187"},"PeriodicalIF":6.7,"publicationDate":"2025-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144297674","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}