Bingshuo Chen , Xiaohua Zhao , Yang Li , Xiaoming Liu
{"title":"Mapping the knowledge domain of crash risk in older drivers studies: A scientometric analysis","authors":"Bingshuo Chen , Xiaohua Zhao , Yang Li , Xiaoming Liu","doi":"10.1016/j.jtte.2024.05.002","DOIUrl":"10.1016/j.jtte.2024.05.002","url":null,"abstract":"<div><div>With the rapid global progression of population aging, the traffic safety of older drivers has emerged as a worldwide concern, resulting in a significant surge in the number of manuscripts on this subject. This study employed scientometric analysis to scrutinize 1652 original manuscripts concerning research on older drivers. To visually depict the current state of knowledge in the field, mapping knowledge domain (MKD) was employed for scientometric analysis, shedding light on the evolution of this research area. Firstly, a statistical analysis was conducted to scrutinize the development of research on older drivers. Secondly, VOSviewer was utilized for manuscript co-citation analysis, revealing five primary research topics: cognitive function and crash risk, visual processing impairment and crash risk, potential consequences of changes in driving patterns, involvement of older drivers in crashes, as well as identifying and enhancing factors contributing to unsafe driving. Thirdly, CitNetExplorer was applied to identify core publications and their reference relationships. Research predominantly focused on visual function, cognitive function, and physical health. Fourthly, VOSviewer's keyword co-citation analysis pinpointed research hotspots in the last five years concerning older drivers: driving risk factors, driving fitness evaluation, impact of distraction on driving, and impact of visual impairment on driving. Finally, based on the aforementioned discussions and the situation in China, some feasible research directions are proposed. This paper summarizes the overall trends in the study of older drivers and the risk factors for traffic accidents. These findings can serve as a reference for improving the driving and road traffic safety of older drivers.</div></div>","PeriodicalId":47239,"journal":{"name":"Journal of Traffic and Transportation Engineering-English Edition","volume":"12 3","pages":"Pages 587-602"},"PeriodicalIF":7.4,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144523744","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}
Wing Yi Pao , Long Li , Eric Villeneuve , Eric Whalls , Martin Agelin-Chaab , Ismail Gultepe , John Komar
{"title":"Perceived precipitation intensity prediction model based on simultaneous dynamic and static observations for evaluating weather impacts on vehicle applications","authors":"Wing Yi Pao , Long Li , Eric Villeneuve , Eric Whalls , Martin Agelin-Chaab , Ismail Gultepe , John Komar","doi":"10.1016/j.jtte.2024.05.003","DOIUrl":"10.1016/j.jtte.2024.05.003","url":null,"abstract":"<div><div>Adverse weather conditions increase road risks; thus, weather testing is necessary to evaluate vehicle performance. Outdoor testing is the most realistic, but it is not as controlled, repeatable, and rapid as indoor testing using an artificial precipitation system. However, outdoor data is still desirable for establishing the simulation targets on the vehicle surfaces. The dynamic-to-static precipitation intensity ratio is a useful parameter to correlate natural precipitation with perceived precipitation experienced by the moving vehicle. Theoretically, the amount of precipitation experienced by a translating surface depends on the orientation and travel speed. However, there are other external factors that could affect the perceived intensity, such as wind, turbulence, and droplet size distribution (DSD). Therefore, the existing simplified models evaluating a number of droplet strikes or precipitation flux calculated using natural precipitation density fail to have accurate predictions of the perceived precipitation rate, which hinders the evaluation vehicle application performance, such as sensor perception. In the present work, a semi-empirical prediction model is developed from the physics of precipitation in the context of vehicle aerodynamics and atmospheric dynamics. This model is validated with outdoor testing on a track for three days with rainy conditions. Multiple optical disdrometers are used to evaluate the precipitation rate experienced by a moving vehicle at different surface orientations through meteorological observations obtained in real-time from a nearby stationary meteorological tower and a moving vehicle. The data acquisition and processing methods are presented in detail. Results suggested that the proposed model is found to improve the current simplified mathematical expressions and is repeatable. It is found that improvements in prediction accuracy of perceived precipitation intensity compared to existing methods are usually more than 50%.</div></div>","PeriodicalId":47239,"journal":{"name":"Journal of Traffic and Transportation Engineering-English Edition","volume":"12 3","pages":"Pages 639-651"},"PeriodicalIF":7.4,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144523748","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":"Inductive charging technology of asphalt pavement: A state-of-the-art review","authors":"Peifeng Cheng, Dayu Jiang, Yiming Li","doi":"10.1016/j.jtte.2024.03.008","DOIUrl":"10.1016/j.jtte.2024.03.008","url":null,"abstract":"<div><div>The increasing adoption of new energy vehicles has promoted the alleviation of petroleum fuel consumption and environmental problems. The charging and endurance capability problems of these vehicles are main constraints for their further development. The intelligent e-Road pavements can provide wireless charging, presenting a potential solution to the above deficiencies. This paper systematically introduced the composition and working principle of wireless charging technology to advance its development and application. Moreover, the main influencing factors of electric energy transmission efficiency on e-Road concerning pavement materials were analysed. The findings showed that the electric energy passed through pavement layers when applying the existing wireless charging technologies that typically use air as the medium. As a result, the transmission efficiency fluctuated owing to various influencing factors, including pavement materials, layers and moisture. This phenomenon is attributed to the performance parameters of wireless charging coils and the power loss caused by the electromagnetic induction characteristics of dielectric pavement materials. Potential solutions for improving the power transmission efficiency of wireless charging pavements were proposed, considering the circuit composition, asphalt concrete gradation type, and pavement structural composition. The methods and models used in previous studies were summarised to evaluate the dielectric loss of asphalt mixtures, and the wireless energy transmission efficiency, application scope, and optimisation methods were put forward. The impact of a commonly used wireless charging coil layout on the structure and service life of wireless charging pavements was analysed, and improvement measures were suggested.</div></div>","PeriodicalId":47239,"journal":{"name":"Journal of Traffic and Transportation Engineering-English Edition","volume":"12 3","pages":"Pages 551-568"},"PeriodicalIF":7.4,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144523742","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}
Minqing Zhu , Wenyu Wang , Hongjun Cui , Yizhe Yang , Jiexi Chen , Jianling Gu , Fengyun Zhang
{"title":"Research on static and dynamic comprehensive evaluation of urban agglomeration road network integration based on catastrophe theory","authors":"Minqing Zhu , Wenyu Wang , Hongjun Cui , Yizhe Yang , Jiexi Chen , Jianling Gu , Fengyun Zhang","doi":"10.1016/j.jtte.2023.01.007","DOIUrl":"10.1016/j.jtte.2023.01.007","url":null,"abstract":"<div><div>The integration of urban agglomeration road networks is an inevitable trend of regional development. It is very important to build a scientific and reasonable evaluation system for the integration of urban agglomeration road networks. The existing research may not be sufficient to evaluate the road network level reliably if the city unit in the region is not considered enough. It is necessary to evaluate the level of road network integration from a dynamic perspective, in consideration of the economic scale of urban population and the level of road network in developing countries such as China is in the stage of rapid development. Therefore, this paper constructs an analytic hierarchy process (AHP)-catastrophe progression method evaluation model by considering the equilibrium degree and the fitness degree of urban unit road network. This evaluation model combines the integration of road network quantity, shape, and quality to evaluate the level of urban agglomeration road network integration from dynamic and static ways. Taking Beijing<em>–</em>Tianjin<em>–</em>Hebei urban agglomeration and Yangtze River Delta urban agglomeration as examples, this paper uses the road network data of urban agglomerations in 2010, 2015, and 2020 to make a comparative study. The results show that the growing trend of Yangtze River Delta urban agglomeration is at a high level by 2020, while the trend of Beijing–Tianjin–Hebei urban agglomeration is at a general level. Compared with the previous evaluation models, this evaluation method has a good explanation and can emphasize the consideration of dynamic evaluation. The research results annotate the current situation of road network integration of Beijing–Tianjin–Hebei and Yangtze River Delta urban agglomeration that can satisfy the requirement of urban agglomeration development. And it provides decision-making reference for further optimizing of the road network planning and layout of urban agglomeration.</div></div>","PeriodicalId":47239,"journal":{"name":"Journal of Traffic and Transportation Engineering-English Edition","volume":"12 3","pages":"Pages 701-721"},"PeriodicalIF":7.4,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144523814","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":"Driving safety of low-position lighting in highway tunnels based on visual performance","authors":"Rui Ren , Zhenzhi Xiao , Yaqiong Wang , Xiao Song","doi":"10.1016/j.jtte.2025.05.001","DOIUrl":"10.1016/j.jtte.2025.05.001","url":null,"abstract":"<div><div>To evaluate the lighting environment quality and driving safety of low-position lighting in highway tunnels, this study simulated three lighting schemes (high-position, low-position, and low-position with auxiliary LED strips on maintaining road) using DIALux software for a two-lane unidirectional tunnel. Key parameters for low-position luminaires were optimized, and drivers' obstacle recognition reaction times, gaze distribution patterns and pupil diameter dynamics were tested by visual performance experiments. The results indicate that the optimal parameters for low-position lighting, when using flat light technology luminaires better adapted to low-position lighting, are as follows: lamp spacing of 6–7 m, mounting height of 1.1–1.3 m, staggered arrangement, and auxiliary lighting power of 1 W/m. Compared to high-position lighting, low-position lighting reduced the threshold increment by 47.1%, increased small target visibility by 569%, and shortened drivers’ reaction times for near-roadway obstacles by 25%, significantly enhancing obstacle recognition. The pupil diameter variation rates across different lighting configurations all below 10% indicate that low-position lighting did not induce psychological states of tension or discomfort during driving. Although low-position lighting exhibited slightly lower longitudinal uniformity and longer reaction times for elevated targets, these limitations were effectively resolved by auxiliary LED strips. Overall, low-position lighting substantially improves driving safety and comfort in highway tunnels.</div></div>","PeriodicalId":47239,"journal":{"name":"Journal of Traffic and Transportation Engineering-English Edition","volume":"12 3","pages":"Pages 616-638"},"PeriodicalIF":7.4,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144523746","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":"Laboratory surface texture analysis of road pavements using a mobile phone camera based close-range photogrammetry technique","authors":"Filippo Balzano , Piergiorgio Tataranni , David Woodward , Cesare Sangiorgi","doi":"10.1016/j.jtte.2024.12.004","DOIUrl":"10.1016/j.jtte.2024.12.004","url":null,"abstract":"<div><div>The wearing course conditions strongly affect road pavements quality in terms of traffic safety and overall functionality. Surface texture can be considered a very strategic aspect to assess road pavement status, in order to predict its degradation and to define an effective maintenance program. Nowadays, common texture assessment approaches are mainly empirical and based on in-situ and/or laboratory direct measurements, thus the quantity and quality of the obtainable information are limited. On the other hand, advanced contactless techniques require expensive and often complicated equipment that can be hardly used in common applications. In this regard, a low budget close-range photogrammetry technique for road pavements 3D surface texture analysis is here proposed. 14 areal texture parameters including depth, volume, distribution and feature indicators have been determined by analysing the 3D models. The outcomes have been compared with those found with the traditional volumetric patch and pendulum tests, and a complete pairwise correlation matrix has been obtained. Volume patch test exhibits a high relationship with different volume and height surface texture parameters, while low-correlations have been found comparing pendulum test with the intrinsic and statistical indicators. The results and their relationships have been commented in-depth along with proposed further research activities.</div></div>","PeriodicalId":47239,"journal":{"name":"Journal of Traffic and Transportation Engineering-English Edition","volume":"12 3","pages":"Pages 447-461"},"PeriodicalIF":7.4,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144523815","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":"Non-destructive testing and intelligent evaluation of road structural conditions using GPR and FWD","authors":"Zhen Liu , Siqi Wang , Xingyu Gu , Qiao Dong","doi":"10.1016/j.jtte.2023.09.006","DOIUrl":"10.1016/j.jtte.2023.09.006","url":null,"abstract":"<div><div>Aiming at the assessment of road structural conditions, a method of combining ground penetrating radar (GPR) and falling weight deflectometer (FWD) for assessing the pavement structural integrity and strength was proposed in this study. First, 3D GPR was performed to detect the thickness and internal distress of pavement structural layers using the canny edge detection and you only look once version eight (YOLOv8) detection algorithms. Results showed that the error of thickness extraction was approximately 3%, and the distress detection achieved a mean average precision (mAP) of 0.859 and an inference time of 11.43 ms with a GTX 1070 GPU. Then, the extracted thickness was used for the modulus (<em>E</em>) inversion of pavement structure layers based on FWD test data and regression analysis. Finally, the distress ratio inside pavement structures (DRIPS) was proposed as a structural integrity index. The relationship between <em>E</em> and DRIPS was revealed and showed a good correlation. The greater the DRIPS value, the worse the pavement structural integrity and strength. It provides a reference for the evaluation of road structural conditions. This strategy proved to be reliable for nondestructive testing and evaluation of road structures, which could improve the comprehensiveness and effectiveness for evaluating road structural conditions.</div></div>","PeriodicalId":47239,"journal":{"name":"Journal of Traffic and Transportation Engineering-English Edition","volume":"12 3","pages":"Pages 462-476"},"PeriodicalIF":7.4,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144523816","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 comprehensive review of the resilient behaviour of unbound granular pavement materials","authors":"Ayesh Dushmantha, Shiran Jayakody, Yilin Gui, Chaminda Gallage","doi":"10.1016/j.jtte.2024.06.004","DOIUrl":"10.1016/j.jtte.2024.06.004","url":null,"abstract":"<div><div>Flexible pavements rely heavily on unbound granular materials for their base and subbase layers, where their performance under repetitive loading is critical. This performance is gauged by two main parameters: resilient modulus and permanent deformation, which are influenced by both intrinsic material properties such as gradation, moisture content, and density and external factors such as applied stress and load repetitions. Over time, variations in these elements can lead to diminished strength and increased non-recoverable strain, highlighting the necessity for routine evaluation of the pavement’s resilient behavior to maintain its longevity and durability. Given the practical difficulties of frequent field testing, computational models have emerged as vital tools for simulating the resilient modulus and predicting plastic strain, incorporating diverse influencing factors, and calibrated with lab and in-situ data. This paper delves into the properties affecting the resilient behavior of unbound granular pavement materials, emphasizing that stress level and moisture content significantly impact the resilient modulus, while load cycles and stress level notably influence permanent deformation. Central to this study is the exploration of the integrated effect of these factors on resilient behavior. Additionally, it evaluates the current landscape of computational modeling, showcasing the capabilities of the most used models for predicting these parameters through comparative analysis of existing literature. It suggests that to enhance pavement reliability and durability, models must evolve to include predictions on density and gradation for future improvement. This study further identifies key causes of pavement deterioration, helping develop targeted rehabilitation strategies and select accurate models for predicting resilience, ensuring robust pavement design. Furthermore, this review advances the field by merging new insights on the resilience of unbound granular materials with a critical evaluation of computational models. It introduces fresh perspectives and trends, bridging gaps in earlier reviews and paving the way for future research in pavement engineering.</div></div>","PeriodicalId":47239,"journal":{"name":"Journal of Traffic and Transportation Engineering-English Edition","volume":"12 3","pages":"Pages 522-550"},"PeriodicalIF":7.4,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144523741","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}
Stefan Biermeier , Dirk Kemper , Tomasz E. Burghardt , Alvaro Garcia-Hernandez
{"title":"Machine detectability of road markings analysed with classical image processing techniques towards demand-oriented road operations for automated vehicles","authors":"Stefan Biermeier , Dirk Kemper , Tomasz E. Burghardt , Alvaro Garcia-Hernandez","doi":"10.1016/j.jtte.2024.11.003","DOIUrl":"10.1016/j.jtte.2024.11.003","url":null,"abstract":"<div><div>This paper investigates the machine detectability (MD) of road markings under various environmental conditions, crucial for the definition of operational design domains (ODD) of automated driving systems as well as the assessment of operational domains (OD). By analysing the correlation between MD parameters, specifically contrast, gradient, and edge detectability, and common photometric properties of road markings currently used for maintenance management (retroreflectivity and daytime visibility), the paper aims to bridge the gap in current road marking detectability research and OD assessment. The methodology encompassed a detailed examination of road markings on a motorway under different lighting and weather conditions, employing both camera and LiDAR sensors for data collection. The findings reveal that the retroreflectivity is a consistent predictor for MD in camera images during nighttime and for LiDAR contrast in dry and moist conditions, whereas the daytime visibility fails to reliably predict MD in daytime conditions. Moreover, the study introduces a multi-parameter approach that transcends sole contrast analysis as well as the usage of off-the-shelf machine vision systems, proposing a new set of MD parameters for a broader and transparent evaluation of road marking detectability. This comprehensive assessment highlights the need for quality standards for road markings that would accommodate varying environmental impacts on MD of road markings. Ultimately, this research provides valuable insights and recommendations on research approaches to find demand-oriented minimum standards for MD of road markings, enabling comprehensive OD assessments, and facilitating safer navigation for automated vehicles.</div></div>","PeriodicalId":47239,"journal":{"name":"Journal of Traffic and Transportation Engineering-English Edition","volume":"12 3","pages":"Pages 569-586"},"PeriodicalIF":7.4,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144523743","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":"Study on performance and microscopic mechanism of hydrogen peroxide treated waste crumb rubber modified asphalt","authors":"Xinjun Feng, Hao Fu, Zijian Dai, Wang Li","doi":"10.1016/j.jtte.2023.03.004","DOIUrl":"10.1016/j.jtte.2023.03.004","url":null,"abstract":"<div><div>The application of waste crumb rubber to modified asphalt can not only improve pavement performance, but also make full use of renewable resources, which is of great significance to environmental protection. However, the waste crumb rubber modified asphalt has some disadvantages such as poor storage stability, high viscosity and high construction temperature requirement, which restricts the application of crumb rubber modified asphalt in road engineering. In order to improve the storage stability and construction workability of waste crumb rubber modified asphalt, in this paper hydrogen peroxide is adopted for the surface oxidation treatment of waste crumb rubber, to prepare five kinds of hydrogen peroxide treated waste crumb rubber modified asphalt with waste crumb rubber dosage of 15%, 20%, 25%, 30%, and 35% (wt%). The pavement performance was studied by conventional performance tests and rheological properties tests. Then, the microscopic mechanism was studied by scanning electron microscopy, infrared spectroscopy and thermogravimetric analysis. The results show that the waste crumb rubber becomes fluffy and has a richer pore structure on the surface after hydrogen peroxide treatment, which makes it easier for the light components in the asphalt to penetrate into the waste crumb rubber, and thus promotes its dissolution in asphalt, thereby improving the storage stability, construction workability, and low temperature performance of waste crumb rubber modified asphalt, but reduces the high temperature and elastic properties. At the same time, the surface polarity of activated waste crumb rubber is enhanced, and esterification reaction occurs with carboxyl groups, sulfoxides and acid anhydrides in asphalt, which effectively increases the interface bonding between asphalt and the waste crumb rubber, and further improves the storage stability, construction workability and low temperature performance of the waste crumb rubber modified asphalt. The optimum dosage of waste crumb rubber modified asphalt treated with hydrogen peroxide is 30%.</div></div>","PeriodicalId":47239,"journal":{"name":"Journal of Traffic and Transportation Engineering-English Edition","volume":"12 2","pages":"Pages 331-343"},"PeriodicalIF":7.4,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143887007","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}