International Journal of Rock Mechanics and Mining Sciences最新文献

{"title":"Response of a large, low-porosity rock sample to hydromechanical loading","authors":"Pouyan Asem ,&nbsp;Emmanuel Detournay ,&nbsp;Vaughan Voller ,&nbsp;Joseph F. Labuz","doi":"10.1016/j.ijrmms.2025.106226","DOIUrl":"10.1016/j.ijrmms.2025.106226","url":null,"abstract":"<div><div>A laboratory framework is developed for tracking infiltration and measuring hydromechanical parameters of a 150 × 150 × 250 mm³ confined specimen of Westerly granite. Many hydrogeological processes are initiated by fluid infiltration into dry rock, yet assessment of this phenomenon is rare because of the minuscule pore volume <em>V</em>_<em>p</em> (of order 0.1 mL) associated with typical laboratory-sized samples of low-porosity rock. We demonstrate that a single experimental design for measuring infiltration and saturation of a large (<em>V</em>_<em>p</em> of order 50 mL) specimen provides an array of reliable parameters for modeling critical hydrogeological processes and geophysical phenomena. Observing the sample fluid uptake indicates infiltration is modeled effectively by a sharp front separating fluid-infiltrated and dry regions. Additionally, by monitoring the fluid exchange during unjacketed loading, accurate values of the unjacketed pore <span><math><msub><mi>K</mi><mi>s</mi></msub><mo>''</mo></math></span> and bulk <em>K</em>_<em>s</em>′ moduli are obtained, and by using isotropic poroelasticity, the measured and predicted values of Skempton coefficients <em>B</em> are shown to be in good agreement.</div></div>","PeriodicalId":54941,"journal":{"name":"International Journal of Rock Mechanics and Mining Sciences","volume":"194 ","pages":"Article 106226"},"PeriodicalIF":7.5,"publicationDate":"2025-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144724965","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Rock-breaking characteristics and mechanisms of self-rotating self-excited oscillating water jets","authors":"Zhaolong Ge ,&nbsp;Xiangjie Liu ,&nbsp;Zhe Zhou ,&nbsp;Di Zhang ,&nbsp;Xu Zhang","doi":"10.1016/j.ijrmms.2025.106222","DOIUrl":"10.1016/j.ijrmms.2025.106222","url":null,"abstract":"<div><div>Hydraulic drilling is an effective technique for the exploitation of deep unconventional oil and gas resources. Enhancing its rock-breaking efficiency and performance is critical for the broader application of this technology. In this study, a novel jet form, self-rotating self-excited oscillating multi-orifice water jets (SSOMWJ), is proposed to impart high-frequency oscillation characteristics to the jet. Comparative rock-breaking experiments were conducted to evaluate performance, with differences in rock-breaking results analyzed through impact force measurements and numerical simulations. The rock-breaking behavior and mechanisms of SSOMWJ were analyzed based on pressure characteristics at the target surface and Computed Tomography (CT) imaging. Results indicate that, compared with conventional self-rotating multi-orifice water jets (SMWJ), the SSOMWJ exhibits superior rock-breaking capabilities and borehole-forming performance. Specifically, rock-breaking volumes increased by 18.73 % and 10.89 %. While drillable depths increased by 75.43 % and 43.85 % at standoff distances of 10 mm and 20 mm, respectively. The SSOMWJ not only generates multiple water hammer pressures but also produces high-frequency stress waves with higher amplitudes during the stagnation pressure stage, in contrast to the SMWJ. The SSOMWJ can utilize these oscillating characteristics to deliver high-energy stress waves and utilize the interaction between the stress waves for improved rock fracturing.</div></div>","PeriodicalId":54941,"journal":{"name":"International Journal of Rock Mechanics and Mining Sciences","volume":"194 ","pages":"Article 106222"},"PeriodicalIF":7.5,"publicationDate":"2025-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144721946","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Development and validation of a Novel rigid block modelling approach for support design in underground mining, enabling new avenues for improved safety and efficiency","authors":"Thierry Lavoie ,&nbsp;Erik Eberhardt ,&nbsp;Véronique Boivin ,&nbsp;Paul Germain ,&nbsp;Jean-François Dorion","doi":"10.1016/j.ijrmms.2025.106220","DOIUrl":"10.1016/j.ijrmms.2025.106220","url":null,"abstract":"<div><div>Support systems are vital for worker safety and to minimize production delays due to collapse incidents or the need for rehabilitation. The purchase of support elements and their installation also represent a significant cost for the operational budget of any mine. However, current standard practices rely on empirical methods developed several decades ago or on simplified kinematic models of the rock mass and its interaction with the support system based on wedge analysis and key-block theory. Experience shows that these lack the robustness required for today's mining depths and safety needs. The advent of faster computer processors and new numerical modelling tools allows us to move away from these over-simplified methodologies and embrace new approaches that can more accurately simulate the failure mechanisms encountered and interactions between the rock mass and the support elements. A new methodology using the 3D distinct-element modelling software PFC3D, combined with DFN simulations, was developed to evaluate support system strategies at the Raglan Mine. The joint strength properties were calibrated against overbreak data from lidar scans. The study demonstrated the effectiveness of the Rigid Block Modelling-DFN approach in simulating complex failure mechanisms in a gravitational stress environment. It provided valuable insights into the trade-offs between using PM12 and rebar #7 for supporting the backs of drifts, as well as determining the optimal timing for installing secondary long supports at intersections.</div></div>","PeriodicalId":54941,"journal":{"name":"International Journal of Rock Mechanics and Mining Sciences","volume":"194 ","pages":"Article 106220"},"PeriodicalIF":7.0,"publicationDate":"2025-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144712877","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Mesoscopic damage enhancement in granite under cyclic liquid nitrogen shocks characterized by computed tomography and texture analysis","authors":"Yi Xue ,&nbsp;Xue Li ,&nbsp;Linchao Wang ,&nbsp;Yong Liu ,&nbsp;Xiaoshan Cao ,&nbsp;Yun Zhang","doi":"10.1016/j.ijrmms.2025.106217","DOIUrl":"10.1016/j.ijrmms.2025.106217","url":null,"abstract":"<div><div>This study investigates the internal damage of granite induced by liquid nitrogen (LN₂) cold shock using X-ray computed tomography (CT) technology. Traditional threshold segmentation methods are subjective and may obscure subtle grayscale variations. In contrast, the Gray Level Co-occurrence Matrix (GLCM), based on second-order statistical measures of grayscale values, quantifies texture features and captures comprehensive fracture information. Uniaxial compression tests were performed on granite samples subjected to cyclic heating and LN₂ treatment, followed by X-ray CT scanning. Image processing techniques and GLCM were employed to extract key features from CT images. Statistical analysis was conducted to quantify the cracks and micro-damages in granite induced by LN₂ cold shock. The results demonstrate that cyclic LN₂ treatment significantly exacerbates cracking in granite, leading to an increase in the number of fracture nodes, thereby intensifying micro-damage. As the number of LN₂ cycles increases, the contrast value typically rises, while the energy and homogeneity values continuously decrease. The correlation values show fluctuating changes, gradually declining. Additionally, as the number of cycles increases, the range of high-frequency feature parameters gradually expands. Parameters associated with the Gaussian main peak steadily increase, and the texture distribution in the CT images becomes increasingly irregular. This work offers a framework for non-destructive quantification of cryogenic-induced rock damage by integrating X-ray CT imaging with GLCM-based texture analysis.</div></div>","PeriodicalId":54941,"journal":{"name":"International Journal of Rock Mechanics and Mining Sciences","volume":"194 ","pages":"Article 106217"},"PeriodicalIF":7.0,"publicationDate":"2025-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144686959","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"An experimental investigation on the dynamic shear characteristics of wet joints","authors":"Shijie Xie ,&nbsp;Jianchun Li ,&nbsp;Shanyong Wang ,&nbsp;Xing Li","doi":"10.1016/j.ijrmms.2025.106193","DOIUrl":"10.1016/j.ijrmms.2025.106193","url":null,"abstract":"<div><div>This study investigated the dynamic shear behavior of planar granite joints under dry and wet conditions using the impact-induced direct shear test. The effects of shear rate and normal stress on the dynamic shear properties were examined on dry and wet joints under four different normal stress conditions. Dynamic shear stress and shear displacement were measured by stress wave acquisition and digital image correlation method, respectively. Dynamic friction coefficients were calculated using the Mohr-Coulomb criterion. Additionally, fracture energy was calculated and compared with nano-indentation tests. The results revealed that moisture significantly alters the dynamic shear response of rock joints. Although both dry and wet joints exhibited dynamic shear stress–displacement curves consisting of two stages, namely a shear stress accumulation stage and a slip stage, the wet joints displayed notably greater strength degradation. A linearly decreasing relationship between maximum shear displacement and normal stress was observed for both joint types. Within the shear displacement rate range of 4–6 m/s, both dry and wet joints exhibited a negative rate effect, wherein dynamic shear strength decreases with increasing shear rate. Wet joints showed a significant 53.2 % reduction in dynamic friction coefficient, compared to 33.9 % for dry joints. Nano-indentation tests further revealed differences in microscale mechanical behavior between dry and wet joints. Compared to dry joints, wet joints showed a 74.2 % increase in maximum indentation depth and a 50.69 % reduction in fracture energy. These findings suggest that wetting-induced strength weakening of rock joints was governed by reductions in fracture energy and frictional properties.</div></div>","PeriodicalId":54941,"journal":{"name":"International Journal of Rock Mechanics and Mining Sciences","volume":"194 ","pages":"Article 106193"},"PeriodicalIF":7.0,"publicationDate":"2025-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144686958","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Quantifying the effects of laminae on mechanical and damage characteristic of shale: Numerical investigation on digital rock models","authors":"Dingdian Yan ,&nbsp;Luanxiao Zhao ,&nbsp;Minghui Lu ,&nbsp;Yonghao Zhang ,&nbsp;Min Chen ,&nbsp;Fengshou Zhang","doi":"10.1016/j.ijrmms.2025.106218","DOIUrl":"10.1016/j.ijrmms.2025.106218","url":null,"abstract":"<div><div>Sedimentary rocks with well-developed laminated structures, such as shales, exhibit intricate mechanical responses driven by the variability and heterogeneity of lamina attributes. Quantifying the influence of individual lamina attributes on rock mechanical responses is essential for understanding the complex deformation and failure mechanisms of laminated shales, with broad implications for geo-applications across Earth sciences and energy fields. However, precisely decoupling lamina-related variables in rock experiments is challenging. We develop a digital rock workflow that reconstructs internal fabric and lamina characteristics by integrating CT-derived shale microstructures with a discrete element method-based laminated particle model, with contact parameters for each lamina type calibrated using experimental data. Simulation results show that increasing soft laminae (clay) quantity reduces strength by 15 % and modulus by 35 %, while greater thickness lowers strength by 35 % and halves the modulus, both raising Poisson's ratio. Conversely, shales interspersed with stiff laminae (silica) exhibit the opposite variation. Variations in lamina properties significantly affect microcracking behavior during failure, complicating the damage mode. Increased lamina quantity and thickness amplify the complexity of microcrack evolution, with soft laminae playing a dominant role by facilitating shear slip and promoting shear failure. Analysis of internal stress characteristics within soft and stiff laminae, boundary regions, and the rock matrix reveals that these mechanical variations in laminated shale stem from stress mismatches across these structural components. The greater the disparity, the stronger the mechanical contrast, amplifying localized deformation and failure complexity. Our simulations align well with experimental data, highlighting the potential of digital shale modeling to quantitatively link rock mechanical properties with lamina attributes while providing a crucial micro-mechanical perspective.</div></div>","PeriodicalId":54941,"journal":{"name":"International Journal of Rock Mechanics and Mining Sciences","volume":"194 ","pages":"Article 106218"},"PeriodicalIF":7.0,"publicationDate":"2025-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144670369","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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 line-to-volume contact algorithm for modeling the complex bond-slip behavior of grouted bolts in rock mass","authors":"Huangcheng Fang ,&nbsp;Weijian Liang ,&nbsp;Zhen-Yu Yin ,&nbsp;Dingli Zhang ,&nbsp;Qian Fang","doi":"10.1016/j.ijrmms.2025.106215","DOIUrl":"10.1016/j.ijrmms.2025.106215","url":null,"abstract":"<div><div>Timely installation of rock bolts is essential in tunneling through weak surrounding rock to prevent rapid deformation behind the excavation face. However, understanding the support mechanism of rock bolts remains a challenge, primarily due to the highly nonlinear bond-slip behavior at the bolt-rock interface. This difficulty is further compounded by the large disparity in cross-sectional dimensions between the bolt and the surrounding rock mass. This study presents a novel and efficient finite element contact algorithm to simulate the interaction between rock bolts and the surrounding rock. Unlike conventional methods that establish direct contact constraints, our approach introduces relative displacement as the new degree of freedom (DOF) based on the dual Lagrange multiplier method. This new DOF is subsequently employed in the discretization of contact constraints and contact virtual work. The formulation enables direct integration of existing constitutive models for the bolt-rock interface, which are typically expressed in terms of relative slip displacement. In addition, it improves numerical stability by avoiding the saddle-point problems and spurious stress oscillations commonly observed in traditional contact formulations. Moreover, this method accommodates non-conforming meshes, enabling the rock bolt to be meshed separately and arbitrarily assembled into the mesh of the rock mass, thus enhancing the flexibility of numerical modeling. The accuracy and efficiency of our method are first validated against existing methods. Subsequently, the developed algorithm is applied to perform a detailed analysis of the mechanical response and support mechanism of rock bolts during tunnel excavation.</div></div>","PeriodicalId":54941,"journal":{"name":"International Journal of Rock Mechanics and Mining Sciences","volume":"194 ","pages":"Article 106215"},"PeriodicalIF":7.0,"publicationDate":"2025-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144662499","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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 of physical mechanisms behind full-scale engineered barrier systems through coupled thermal-hydraulic-mechanical (THM) simulations","authors":"Chia-Wei Kuo ,&nbsp;Wan-Jung Kuo ,&nbsp;Chung-Yi Lin","doi":"10.1016/j.ijrmms.2025.106155","DOIUrl":"10.1016/j.ijrmms.2025.106155","url":null,"abstract":"<div><div>This work presents simulation results of the FEBEX experiment, performed using the 2019 rendition of the coupled thermal-hydraulic-mechanical-chemical simulator, HYDROGEOCHEM 5.3 (HGC 5.3 Taiwan Power Company version). These simulations were carried out as part of the DECOVALEX-2019 project. The simulations consider the variably saturated flow, thermal transport, and linear geomechanics, including the effects of bentonite swelling. This study systematically investigates the hydro-thermal-mechanical processes in bentonite, which services as the sealing material in a near-field full-scale engineering barrier system. It explores important issues such as how the engineering barrier in the disposal site undergoes resaturation processes, thermal transport processes, and the resulting stress behavior. The simulation results are compared with experiments to understand the underlying physical mechanisms. We can qualitatively and quantitatively predict most of the experimental results, including the evolution and radial distribution of relative humidity, the evolution of heating power, the evolution as well as axial and radial distribution of temperature, the evolution of total stress, and the distribution of degree of saturation and moisture content for the first and final dismantling.</div><div>Through this study, we aim to better understand the dominant physical mechanisms behind the evolution of material properties of engineering barriers. This understanding will enable us to evaluate the functions of near-field engineering barriers and improve the numerical technical capabilities for the safety assessment and analysis of nuclear waste disposal. The insights gained from this research can be applied to address important environmental issues involving these fundamental processes, particularly the safety of nuclear waste disposal repositories that use bentonite as a buffer or backfill material.</div></div>","PeriodicalId":54941,"journal":{"name":"International Journal of Rock Mechanics and Mining Sciences","volume":"194 ","pages":"Article 106155"},"PeriodicalIF":7.0,"publicationDate":"2025-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144633854","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comprehensive evaluation of three-dimensional Hoek–Brown strength criteria: Properties, applicability, and parameter reliability","authors":"Chenlong Su ,&nbsp;Hehua Zhu ,&nbsp;Wuqiang Cai ,&nbsp;Lianyang Zhang ,&nbsp;Haohua Chen ,&nbsp;Qi Zhang ,&nbsp;Zhi Zheng","doi":"10.1016/j.ijrmms.2025.106213","DOIUrl":"10.1016/j.ijrmms.2025.106213","url":null,"abstract":"<div><div>The Hoek–Brown (HB) criterion has evolved into a mature and widely adopted parameter system in rock mechanics. Although existing three-dimensional HB criteria consider the intermediate principal stress effect, issues concerning the reliability of their parameters and the inheritance of the HB parameter system remain insufficiently addressed. In this study, the failure strength distribution of sandstone on the π-plane is obtained through true triaxial failure test under the given stress conditions. The non-convexity of the rock strength on the π-plane is experimentally demonstrated for the first time, and its dual nonlinear tension-compression transition law on both the π-plane and the meridian plane is revealed. Based on 50 sets of true triaxial test data, a comparative analysis of 12 HB series criteria is conducted. The results indicate that the curvilinear hexagonal strength criterion is more consistent with the failure strength envelope morphology of sandstone and has a better comprehensive strength prediction accuracy of various rock types. Among criteria without introducing additional parameters, the generalized Zhang–Zhu criterion demonstrates the best comprehensive performance, maintaining the inheritance of the accumulated experience of the HB parameter system and facilitating practical engineering applications. While criteria incorporating additional parameters achieve higher prediction accuracy and parameter stability, their practical application is limited by ambiguous physical interpretations, immature parameter determination methods, and potential disruption of the original HB parameters, lacking guiding significance for rock mass engineering.</div></div>","PeriodicalId":54941,"journal":{"name":"International Journal of Rock Mechanics and Mining Sciences","volume":"194 ","pages":"Article 106213"},"PeriodicalIF":7.0,"publicationDate":"2025-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144623324","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Integrating time of exposure into quantitative evolving rockfall hazard assessment for open-pit mining","authors":"F. Bahootoroody ,&nbsp;A. Giacomini ,&nbsp;K. Thoeni ,&nbsp;D.E. Guccione ,&nbsp;F. Ferrari ,&nbsp;M. Jaboyedoff","doi":"10.1016/j.ijrmms.2025.106216","DOIUrl":"10.1016/j.ijrmms.2025.106216","url":null,"abstract":"<div><div>A quantitative Evolving Rockfall Hazard Assessment (qERHA) methodology is proposed to address rockfall risks in open-pit mines, integrating site-specific factors such as failure frequency, block size distribution, and highwall geometry. Unlike conventional approaches reliant on return periods, qERHA introduces a novel time of exposure (ToE) framework tailored to mining operations, enabling hazard assessment over durations ranging from hourly shifts to multi-year plans. The implemented energy thresholds reflect mining infrastructure vulnerabilities. The methodology employs stochastic rockfall trajectory simulations, geological layer segmentation, and Poisson-derived likelihood analysis to generate spatially explicit hazard maps. These maps identify critical zones for targeted mitigation and operational planning based on safety considerations. A case study shows how qERHA can be applied to investigate the likelihood of rockfall occurrence in the context of machinery operating at the toe of a highwall over a period of 3 months. Results indicate that targeted reinforcement of critical geological layers significantly decreases the likelihood of rockfall hazards. The study bridges gaps in existing qualitative and quantitative hazard assessments by incorporating mining-specific energy thresholds and ToE metrics, offering a practical framework for enhancing safety and operational efficiency in open-pit environments.</div></div>","PeriodicalId":54941,"journal":{"name":"International Journal of Rock Mechanics and Mining Sciences","volume":"194 ","pages":"Article 106216"},"PeriodicalIF":7.0,"publicationDate":"2025-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144604641","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}