Journal of Fluids and Structures最新文献

{"title":"Comparative study on a downstream cylinder versus splitter plate-based proximity interference on FIV of a circular cylinder","authors":"Abhishek Abhishek,&nbsp;Subhasisa Rath,&nbsp;Sandip K. Saha,&nbsp;Atul Sharma","doi":"10.1016/j.jfluidstructs.2025.104469","DOIUrl":"10.1016/j.jfluidstructs.2025.104469","url":null,"abstract":"<div><div>The study presents the effect of bluffness on flow-induced vibration of an elastically-mounted cylinder subjected to proximity-interference from a downstream stationary cylinder (bluff body) and a rigid splitter-plate (streamlined). Numerical simulations are performed for non-dimensional gap <em>G*</em> = 0<em>.</em>1,0.3, 0.5 and reduced velocities <em>U*</em> = 3 – 20, at a constant Reynolds number <em>Re</em> = 100. The upstream cylinder exhibits in-phase (<em>ϕ</em> = 0°) proximity-induced galloping (PIG), except for an in-phase to anti-phase (<em>ϕ</em> = 180°) jump at <em>G*</em> = 0.5 of the plate case, and the onset of proximity-induced staggered vibration (PISV) at <em>U*</em> = 20, <em>G*</em> = 0.1 of the cylinder case. With decreasing <em>G*</em>, the <em>A*</em> and maximum gap flow rate <span><math><msubsup><mi>Q</mi><mrow><mi>g</mi><mo>,</mo><mi>m</mi><mi>a</mi><mi>x</mi></mrow><mo>*</mo></msubsup></math></span> increases for the plate case while decreases for the cylinder, indicating a strong link between <span><math><msubsup><mi>Q</mi><mrow><mi>g</mi><mo>,</mo><mi>m</mi><mi>a</mi><mi>x</mi></mrow><mo>*</mo></msubsup></math></span> and vibrational amplitude. Three primary lift mechanisms are identified during PIG oscillation: anti-phase restoring vortex-induced lift, in-phase decelerating lift, and in-phase galloping lift. The persistence of the gap-side vortex and associated vortex-induced lift in the plate case, even at the smallest gap (<em>G*</em> = 0.05)—contrasted with its suppression for the cylinder case, emerges as the fundamental difference between bluff and streamlined body interference. The well-known asymptotic amplitude variation (with <em>U*</em>) of PIG is caused by the enhanced gap-side vortex, establishing the anti-phase restoring vortex as the key mechanism governing self-limiting amplitude characteristics in both PIG and VIV. Further, at <em>G*</em> = 0.1, the vibrational regime map is presented in terms of downstream structure bluffness <em>B</em> and <em>U*</em>.</div></div>","PeriodicalId":54834,"journal":{"name":"Journal of Fluids and Structures","volume":"140 ","pages":"Article 104469"},"PeriodicalIF":3.5,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145579701","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":"Impact loads and ice plate damage during the process of icebreaking and water exit for the vehicle","authors":"Zhiqiang Fu ,&nbsp;Zhipeng Li ,&nbsp;Longquan Sun ,&nbsp;Guihui Ma ,&nbsp;Siqiang Wang","doi":"10.1016/j.jfluidstructs.2025.104463","DOIUrl":"10.1016/j.jfluidstructs.2025.104463","url":null,"abstract":"<div><div>Underwater vehicles in polar environments invariably encounter complex operating conditions, including interactions with ice and water. The substantial impact loads and hydrodynamic forces generated by the interaction among the vehicle structure, ice, and water during the processes of icebreaking and crossing the water can significantly affect the safety of the vehicle. Therefore, the processes of ice plate breakup, fluid flow characteristics, and the associated complex load dynamics during the icebreaking operations warrant thorough investigation. In response to this need, this paper presents a set of experimental systems designed to study vehicle icebreaking and water-exit. A type of breakable frozen model ice is used in the experiment, and research is conducted on icebreaking loads and the breakup of ice plates when vehicles impact ice plates of varying thicknesses and sizes at different speeds. The results of experiments indicate that radial cracks develop first, followed by the propagation of circumferential cracks. The study reveals that, due to the obstruction posed by the ice plate, an instantaneous pressure peak occurs at the vehicle's bow as it contacts the ice. This pressure is released once the ice sheet breaks, resulting in a splash. Furthermore, as the ice plate length increases, fluctuations in the pressure peak at the vehicle bow are noted. Concurrently, the axial force exhibits an overall upward trend as the size of the ice sheet increases. The findings of this study can serve as a valuable reference for the comprehensive design of marine structures intended for polar operations.</div></div>","PeriodicalId":54834,"journal":{"name":"Journal of Fluids and Structures","volume":"140 ","pages":"Article 104463"},"PeriodicalIF":3.5,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145528442","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 investigation of flexible trailing edge effects on airfoil turbulent-boundary-layer noise","authors":"Qian Liu ,&nbsp;Reza Maryami ,&nbsp;Lin Li ,&nbsp;Yu Liu","doi":"10.1016/j.jfluidstructs.2025.104467","DOIUrl":"10.1016/j.jfluidstructs.2025.104467","url":null,"abstract":"<div><div>The acoustic characteristics of the NACA 0012 airfoil with a flexible trailing edge (TE) are experimentally investigated. Measurements are conducted at chord-based Reynolds numbers ranging from <span><math><mrow><mn>1</mn><mo>.</mo><mn>93</mn><mo>×</mo><mn>1</mn><msup><mrow><mn>0</mn></mrow><mrow><mn>5</mn></mrow></msup></mrow></math></span> and <span><math><mrow><mn>1</mn><mo>.</mo><mn>16</mn><mo>×</mo><mn>1</mn><msup><mrow><mn>0</mn></mrow><mrow><mn>6</mn></mrow></msup></mrow></math></span>, with the airfoil set at a zero angle of attack. Flexible TEs made of polyethylene terephthalate, polypropylene, and polyvinyl chloride strips are employed to assess their impact on noise reduction. To elucidate the effect of TE deformation on acoustic performance, the out-of-plane deformation is recorded using high-speed cameras and analyzed with a digital image correlation algorithm. The acoustic results demonstrate that flexible TEs reduce noise by 1–3 dB within the mid-frequency range, with its upper limit shifting to higher frequencies as the free-stream velocity increases, following a scaling law of <span><math><mrow><mi>f</mi><mo>∼</mo><msup><mrow><mi>U</mi></mrow><mrow><mn>1</mn><mo>.</mo><mn>5</mn></mrow></msup></mrow></math></span>. However, noticeable tonal noise persists across various free-stream velocities, with its frequency remaining relatively consistent. Deformation analysis shows that the vibration of the flexible strip plays a key role in generating vortex shedding, which in turn leads to tonal noise. This is further supported by proper orthogonal decomposition (POD) analysis, which indicates that bending deformation, especially near the tip of the strip, is the primary mechanism driving vortex shedding. This bending deformation, associated with lower-order POD modes, generates large-scale flow structures that propagate acoustic waves to the far field, thereby contributing to the observed tonal noise.</div></div>","PeriodicalId":54834,"journal":{"name":"Journal of Fluids and Structures","volume":"140 ","pages":"Article 104467"},"PeriodicalIF":3.5,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145528443","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":"Analytical study of water wave diffraction and radiation by a submerged sphere in front of a partially reflective vertical wall","authors":"Aijun Li ,&nbsp;Siming Zheng ,&nbsp;Yong Liu","doi":"10.1016/j.jfluidstructs.2025.104472","DOIUrl":"10.1016/j.jfluidstructs.2025.104472","url":null,"abstract":"<div><div>The problem of water wave diffraction and radiation by a submerged sphere in front of a partially reflective wall is solved by using the partial mirror image method. Additional velocity potentials of reduced diffracted/radiated waves from the mirror image of the sphere with respect to the vertical wall are introduced to satisfy the partially reflective condition on the vertical wall. The velocity potentials of diffracted/radiated waves from the sphere and its mirror image are expressed using the multipole expansion method in local spherical coordinate systems with the origins located at the centers of the two spheres. Subsequently, by applying the transformation technology of local spherical coordinate systems for multipoles, the unknown coefficients in the velocity potentials are determined through the boundary condition on the real sphere surface. The wave exciting forces on the submerged sphere and the added mass and radiation damping due to the sphere’s oscillation are calculated. The correctness of the analytical solution is validated by considering the solution convergence and the comparison with published results in the literature. Based on the analytical solution, the effects of the reflection coefficient of the wall, the frequency, the sphere-wall spacing, and the submergence depth on the hydrodynamic quantities are examined. Results indicate that the magnitude of the reflection coefficient imposes obvious effects on the amplitudes of the hydrodynamic quantities, whereas variations in the phase of the reflection coefficient shift the frequencies at which hydrodynamic quantities exhibit maxima and minima. Increasing the sphere-wall spacing causes the hydrodynamic quantities to oscillate more rapidly with frequency.</div></div>","PeriodicalId":54834,"journal":{"name":"Journal of Fluids and Structures","volume":"140 ","pages":"Article 104472"},"PeriodicalIF":3.5,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145623939","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":"Mitigation of broadband duct flow noise using liner with gradient surface resonant compliance","authors":"Ali Abdullah ,&nbsp;Randolph C.K. Leung ,&nbsp;Racer K.H. Lam ,&nbsp;Muhammad Rehan Naseer ,&nbsp;Irsalan Arif","doi":"10.1016/j.jfluidstructs.2025.104452","DOIUrl":"10.1016/j.jfluidstructs.2025.104452","url":null,"abstract":"<div><div>Broadband noise mitigation in flow ducts remains a crucial area of study, especially in the low-frequency regime where conventional liner technologies such as dissipative liners, micro-perforated panels, and Helmholtz resonators are often ineffective. To address this limitation, the use of interior duct surface resonant compliance, which leverages aeroacoustic-structural interactions to mitigate low-frequency noise in duct flow, is found to be particularly promising. We investigate a novel approach using multiple compliant liner units, each comprising elastic panels backed by air-filled cavities, strategically flush-mounted on the duct walls. By strategically tuning the fluid-loaded resonant frequency of each elastic panel to introduce gradient surface resonant compliance, we create overlapping stopbands that enhance low-frequency noise mitigation. In this study, a robust numerical methodology based on the perturbation evolution method is utilized. A weak broadband acoustic excitation is introduced to simulate a realistic aeroacoustic flow duct environment. A detailed parametric study is carried out to compare three compliant liner system configurations: (1) baseline with uniform surface resonance distribution, (2) increasing resonance distribution, and (3) decreasing resonance distribution along the flow direction. The study confirms that the baseline compliant configuration yields remarkable reductions in broadband noise. The gradient-resonance compliant configurations further improve the performance, achieving enhanced low-frequency noise mitigation and increased overall sound transmission loss. The findings of the study demonstrate that strategically varying the fluid-loaded resonant frequencies of elastic panels enhances the structural resonant characteristics, thereby increasing the stopband width by 18.0 % for increasing resonance distribution configuration, while a 7.0 % widened stopband was demonstrated by decreasing resonance distribution with maximum transmission of 50.0 dB. Furthermore, the compliant liner systems demonstrated a remarkably lower drag penalty (≤ 10 %) than the minimum value observed in conventional acoustic liner experiments reported in the literature.</div></div>","PeriodicalId":54834,"journal":{"name":"Journal of Fluids and Structures","volume":"140 ","pages":"Article 104452"},"PeriodicalIF":3.5,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145579632","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":"Energy harvesting from vortex-induced vibrations using a pendulum","authors":"F.J. Huera-Huarte","doi":"10.1016/j.jfluidstructs.2025.104449","DOIUrl":"10.1016/j.jfluidstructs.2025.104449","url":null,"abstract":"<div><div>This paper presents an experimental investigation into energy harvesting from vortex-induced vibrations (VIV) using a pendulum-based arrangement. A series of experiments were conducted in a water channel to examine the effects of flow velocity and applied braking torque on the pendulum shaft. The motion of the pendulum and the fluid loading were measured and analyzed to assess the power output and dynamic response of the system under varying flow and braking conditions. Results indicate that energy extraction is maximized within a narrow range of flow velocities that induce lock-in response, particularly for the highest braking torques that allow motion on the system. A constant (limited) braking torque was applied to evaluate mechanical power at the shaft, and while the braking function was not optimized, the study demonstrates that the system can achieve energy conversion efficiencies comparable to other VIV-based energy harvesting configurations.</div></div>","PeriodicalId":54834,"journal":{"name":"Journal of Fluids and Structures","volume":"140 ","pages":"Article 104449"},"PeriodicalIF":3.5,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145475024","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":"Transient flow analysis in pipes with extended deteriorations considering fluid-structure interaction: The role of support stiffness","authors":"Roohollah Zanganeh ,&nbsp;Alireza Keramat ,&nbsp;Arris Tijsseling","doi":"10.1016/j.jfluidstructs.2025.104466","DOIUrl":"10.1016/j.jfluidstructs.2025.104466","url":null,"abstract":"<div><div>In prior research, the potential for misdiagnosis between the effects of Fluid-Structure Interaction (FSI) and pipe-wall Extended Deteriorations (EDs) has been highlighted for transient flow in a pipeline. Given the significant role of pipeline anchor stiffness in modulating FSI during waterhammer (WH), this study delves into the combined impacts of FSI and EDs on WH signals in a pipeline with elastic supports. A time-domain numerical solution, using the finite-element method (FEM) for the structure and the method of characteristics (MOC) for the fluid, is employed to scrutinise the transient pressure-head fluctuations owing to FSI and EDs. The results demonstrate that the stress wave reflections from EDs generate pressure head jumps during WH. Furthermore, the interaction of the stress wave in the pipe wall with the pressure wave reflected from EDs in a deteriorated pipeline affects the transient signature. FSI and the stiffness of pipe supports alter the timing, shape, and magnitude of pressure-head jumps caused by EDs. The support’s stiffness is varied to quantify its impact. The study underscores the importance of the excitation signal’s bandwidth (the valve closure time) in determining the prominence of FSI and ED signatures within transient signals. This research contributes to the fundament of the transient-based defect detection (TBDD) technique applied in pipelines.</div></div>","PeriodicalId":54834,"journal":{"name":"Journal of Fluids and Structures","volume":"140 ","pages":"Article 104466"},"PeriodicalIF":3.5,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145579788","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":"Vibration suppression characteristics of piezoelectric metamaterial pipe conveying fluid based on shunt circuits","authors":"Qifa Lu ,&nbsp;Hongwei Song ,&nbsp;Renzhuo Du ,&nbsp;Wensheng Ma ,&nbsp;Chunchuan Liu","doi":"10.1016/j.jfluidstructs.2025.104474","DOIUrl":"10.1016/j.jfluidstructs.2025.104474","url":null,"abstract":"<div><div>This paper proposes a novel metamaterial pipe with controllable bandgap characteristics, which is constructed by attaching shunted piezoelectric patches to a fluid-conveying pipe along the axial direction. The vibration transmission coefficient and wave attenuation constant of the metamaterial pipe are calculated using an analytical model that combines Euler-Bernoulli beam theory and Timoshenko beam theory. The main contribution of this work lies in the combined analytical model can calculate the vibration and wave propagation characteristics of circular metamaterial pipe with sectorial annular piezoelectric patches. The calculation accuracy is quantitatively verified through the results in published literature and finite element numerical simulations. Research results indicate that Bragg scattering (BS) bandgap and electromechanical local resonance (LR) bandgap can be generated and used for low-frequency vibration reduction. Due to the damping effect of internal fluid flow, the weak non-reciprocal propagation of bending waves occurs for the metamaterial pipe with non-zero fluid velocity. The transmission coefficient can be tuned by flow velocity, and controllable bandgap characteristics can be achieved by designing shunt circuit parameters. In addition, the bandgap coupling characteristics of metamaterial pipes are studied and the hybrid bandgap is obtained, which can be used to achieve broadband low-frequency vibration reduction of engineering fluid-conveying pipes.</div></div>","PeriodicalId":54834,"journal":{"name":"Journal of Fluids and Structures","volume":"140 ","pages":"Article 104474"},"PeriodicalIF":3.5,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145623936","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":"Deflection of a floating ice sheet under a moving load: Influence of uniform current and elastic bottom","authors":"Mahesh Kumar Nehra,&nbsp;Swaroop Nandan Bora","doi":"10.1016/j.jfluidstructs.2025.104465","DOIUrl":"10.1016/j.jfluidstructs.2025.104465","url":null,"abstract":"<div><div>This study examines the wave response of a thin floating ice sheet due to a moving load subject to a uniform current and a flexible sea-bottom of finite depth. It takes into account the effects of both bottom elasticity and the uniform current on the ice sheet deflection by considering the flexible bottom as a thin elastic plate. The relevant dispersion relation is derived through mathematical analysis. Assuming the fluid to be incompressible, and inviscid, and the motion irrotational, the problem is formulated by following the linear water wave theory. Phase and group speeds of waves depending on various physical scenarios are explored using the dispersion relation. A particular type of loading function is taken into consideration, which depicts a line load that moves on the ice surface at a constant speed. The Fourier transform method is used to find out the deflection caused by the moving load and to examine the effects of the elastic sea-bed and uniform current. To make the procedure simple, the resultant integrals are transformed into a non-dimensional form. Furthermore, the ice sheet response for large time is examined using an asymptotic method. The phase speed, group speed, and ice deflection are further illustrated by graphical depictions to analyze the effects of the important aspects. The variation of the parameters of the elastic sea-bed and the current results in considerable alternation of the wave propagation due to the moving load on the ice sheet. The study indicates that both the uniform current and the elasticity of sea-bed have considerable effects on wave propagation and ice sheet deformation, presenting important insights into wave-ice-elastic bed interactions in geophysical habitats.</div></div>","PeriodicalId":54834,"journal":{"name":"Journal of Fluids and Structures","volume":"140 ","pages":"Article 104465"},"PeriodicalIF":3.5,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145528414","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 ice breaking by flexural-gravity waves induced by a moving submerged spheroid","authors":"Hao Tan ,&nbsp;Linhua Sun ,&nbsp;Baoyu Ni ,&nbsp;Shan Wang ,&nbsp;Hua-Dong Yao ,&nbsp;C. Guedes Soares","doi":"10.1016/j.jfluidstructs.2025.104451","DOIUrl":"10.1016/j.jfluidstructs.2025.104451","url":null,"abstract":"<div><div>A prolate spheroid model is towed beneath an ice sheet in outdoor ice-tank experiments to study the effects of a moving pressure source, which can induce flexural-gravity waves in an ice sheet. To replace the previous cable-driven system, a new underwater towing setup is developed, constraining both the spheroid's horizontal and vertical motions. For the first time, the hydrodynamic forces acting on the body beneath the ice sheet can be directly measured using this setup. Results demonstrate that the spheroid velocity, submergence depth, and ice thickness jointly govern the maximum ice deflection, damage severity, and the drag and lift characteristics of the spheroid. The drag and lift coefficients vary non-monotonically with the velocity, exhibiting distinct differences from the spheroid moving beneath a free surface or a rigid wall. A new dimensionless parameter is proposed to improve the existing ice failure criteria. This new criterion is based on measured ice deflection and a characteristic length scale of the ice sheet, providing a practical and robust parameter for wave-induced ice failure.</div></div>","PeriodicalId":54834,"journal":{"name":"Journal of Fluids and Structures","volume":"140 ","pages":"Article 104451"},"PeriodicalIF":3.5,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145475026","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}